Patent application number | Description | Published |
20090196224 | Base station and scheduling method used in base station - Disclosed in the present invention are base stations and scheduling methods used in base stations. The base station uses a multi-user multi-input and multi-output method, and is characterized in comprising: a storing means for storing codebook vector group information relevant to a combination of codebook vectors capable of being used as a pre-coding group, the codebook vector group information comprising an index of the combination of codebook vectors capable of being used as a pre-coding group; a pre-coding matrix element selecting means for selecting codebook vectors to be taken as elements of a pre-coding matrix; a pre-coding matrix index determining means for determining an index, to which a combination of the codebook vectors selected by the pre-coding matrix element selecting means corresponds, in accordance with the codebook vectors to be taken as elements of a pre-coding matrix as selected by the pre-coding matrix element selecting means and with reference to the codebook vector group information; and a pre-coding matrix index transmitting means for transmitting the index of the combination of the codebook vectors determined by the pre-coding matrix index determining means. | 08-06-2009 |
20090238297 | Method For Selecting Subchannel Mode And MIMO Communication System Using The Same - The invention relates to Method for Selecting Subchannel Mode and MIMO Communication System Using the Same. A method for self-adaptively selecting a code modulation sub-channel mode is suitably used in a MIMO communication system that comprises a base station and mobile terminals, wherein the method comprises the steps of: the mobile terminal estimating channel state information thereof, and determining a sub-channel structure most suitable for data transmission thereto, based on the channel state information; the mobile terminal feeding back information on the determined sub-channel structure most suitable for data transmission thereto to the base station; and the base station determining a sub-channel structure used for a down link, based on the information on the sub-channel structure fed back by the mobile terminal. According to the present invention, the subchannel structure in the communication system can be self-adaptively changed according to the actual communication environment, so as to improve the entire communication quality and efficiency. | 09-24-2009 |
20090249151 | MIMO-HARQ Communication System and Communication Method - The invention relates to a MIMO-HARQ communication system and communication method. When a receiver carries out a CRC for received data streams and detects an error in a data stream, it feeds back to a transmitter and requests a retransmission of the data stream. The transmitter determines the correspondence between the data streams to be transmitted and a plurality of transmitting antennas in a method for retransmitting the error data stream with a transmitting antenna other than the one having transmitted the error data stream. Transmission and retransmission of a same data stream experience different spatial fading channels, so that an additional spatial diversity gain is obtained by exchanging the transmission sequences, in addition to a time diversity gain obtained by retransmission, and hence the probability of successful transmission is improved. | 10-01-2009 |
20090323792 | Method and Apparatus for Designing Modulation and Coding Set of Communication System - The present invention provides method and apparatus for designing modulation and coding set of communication System. The method for designing modulation and coding set designs a proper set of modulation and coding schemes (MCS), based on probability distribution of the quality of received signal in the communication system, so as to optimize the whole performance of the communication system. The method comprises the steps of: acquiring the probability distribution of the quality of the received signal in the communication system; performing a calculation on the target performance of the communication system based on the acquired probability distribution of the quality of the received signal and a plurality of MCSs, to design a proper set of MCSs for the communication system, so that a region where the probability of the quality of the received signal appears more frequently are provided with more levels of the MCSs. | 12-31-2009 |
20100002796 | Adaptive Transmission Method And System For Wireless Communication System - The present invention provides a wireless transmission method and system based on maximum multi-path delay estimation. A wireless transmission method based on an estimation of maximum multi-paths delay, comprising: a communication apparatus involved in wireless communication estimates the maximum multi-paths delay of a currently received frame; the communication apparatus performs a quantization and coding on feedback information related with the estimated maximum multi-paths delay, and then sends the feedback information which has been subjected to the quantization and coding to an opposing communication apparatus which is in wireless communication with the communication apparatus; the opposing communication apparatus recovers the feedback information by demodulating and decoding the feedback information which has been subjected to the quantization and coding; the opposing communication apparatus performs an adaptive adjustment of wireless signals transmitted to the communication apparatus, based on the recovered feedback information. With this method, system parameters can be adaptively adjusted so as to that sufficiently improves the spectrum utilization efficiency of wireless resources (the throughput is increased by about 5%). | 01-07-2010 |
20100039926 | Transmission Resource Assigning Method, Feedback Method And Processing Method For Response Signals - The present invention discloses a transmission resource assignment method for response signals, a feedback method of response signals and a processing method of response signals. The transmission resource assignment method for response signals according to the present invention includes the steps of: determining a list of mobile stations required to transmit response signals currently; determining the number of the response signals required to be transmitted by each mobile station; and assigning a frequency-domain sequence and a time-domain sequence for each mobile station to transmit the response signals; wherein for multiple mobile stations assigned with the same frequency-domain sequence, the time-domain sequence assigned to the mobile station required to transmit multiple response signal groups is divided into multiple subsequences to be used to transmit the multiple response signal groups of the mobile station respectively; and parts of the time-domain sequences of different mobile stations corresponding to the multiple subsequences are orthogonal to each other respectively. | 02-18-2010 |
20100100787 | TRANSMISSION DATA GENERATING APPARATUS AND RECEIVER - This invention proposes a transmission data generating apparatus for use in a transmitter of a communication system, which transmission data generating apparatus comprises a redundancy data obtaining unit for obtaining redundancy data of information data which was transmitted to a receiver and was not received successfully by the receiver; a new data obtaining unit, for extracting new data, which has not been transmitted to the receiver; and a combination unit, for combining the redundancy data and the new data to form a transmission data to be subsequently transmitted to the receiver. This invention enhances the success rate of decoding the new data in primarily transmitted data and retransmitted data, and enhances system throughput. | 04-22-2010 |
20100103832 | Feedback Apparatus, Feedback Method, Scheduling Apparatus, And Scheduling Method - A scheduling apparatus in a MIMO control station for switching between SU-MIMO mode and MU-MIMO mode receives feedback information from each of a plurality of MIMO terminals. The scheduling apparatus comprises a SU-MIMO selecting unit that selects a terminal that has a SU-MIMO optimal performance metric among all the terminals; a MU-MIMO selecting unit that groups the terminals into at least one set, and selects a set of terminals that have a MU-MIMO optimal performance metric; and a switching unit that compares the SU-MIMO optimal performance metric and the MU-MIMO optimal performance metric to switch between the SU-MIMO mode and the MU-MIMO mode. | 04-29-2010 |
20100151871 | Wireless Communication System And Wireless Communication Method - There is provided a method for scheduling users in a multi user-multi input multi output (MU-MIMO) wireless communication system. The MU-MIMO wireless communication system comprises at least one based station and at least one user equipment, the base station is capable of accommodating plural user equipments by precoding based on a codebook, the method comprising: each of the plural user equipments conducting a channel estimation based on a pilot signal transmitted from the base station, to obtain a channel information; determining, based on the channel information, a codeword that results in the maximum signal-noise-ratio (SNR), and a channel quality indictor (CQI) value corresponding to the codeword; and feeding back the codeword and the CQI value to the base station, the base station setting up an active user set that includes at least one user allowed of downlink transmission based on the codewords and the CQI values fed back from the user equipments, so that a predetermined performance metric of the system is maximized. | 06-17-2010 |
20100166097 | Wireless Communication System And Wireless Communication Method - There is provided a MIMO wireless communication system, which comprises at least one base station having plural transmitting antennas and at least one user equipment having at least one receiving antennas, the base station being capable of accommodating plural user equipments by precoding based on a codebook, wherein, each of the plural user equipments comprises: a channel estimation unit for conducting a channel estimation based on a pilot signal transmitted from the base station, to obtain a channel information; a codeword determination unit for determining a first codeword that results in the maximum signal-noise-ratio, and at least one second codeword that results in the minimum signal-noise-ratio, based on the channel information; and a transmission unit for feedbacking the first codeword and the second codeword(s) to the base station, the base station is configured to schedule the user equipments based on the first codeword and the second codeword so that a predetermined system performance metric is optimized. | 07-01-2010 |
20100190433 | RELAY DEVICE AND WIRELESS COMMUNICATION METHOD THEREOF - The invention provides a relay device and a wireless communication method thereof. The A wireless communication method for a relay device includes the following steps: receiving a first signal destined for a second communication device from a first communication device; decoding the received first signal and determining whether a decoding result is correct; generating a first decoding response signal indicating whether the decoding result of the first signal is correct; and sending the first decoding response signal to the first communication device and the second communication device. | 07-29-2010 |
20100203826 | DATA RELAY APPARATUS, COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A data relay apparatus includes a first demodulating unit, demodulating a modulation signal of a first modulation mode from a first transmission source; a second demodulating unit, demodulating a modulation signal from a second transmission source, having a modulation mode higher than the first modulation mode; a combination controlling unit, providing a mapping rule necessary for performing signal combination in accordance with the modulation mode of the modulation signal from each of the first and second transmission source, the mapping rule to map the demodulated modulation signal from the first transmission source together with the demodulated modulation signal from the second transmission source to a constellation of symbols of the second modulation mode; a data combining unit, performing data combination on the demodulated modulation signal from the first transmission source and the demodulated modulation signal from the second transmission source according to the mapping rule. | 08-12-2010 |
20110235751 | DATA TRANSMISSION DEVICE AND METHOD THEREOF, AND DATA RECEPTION DEVICE AND METHOD THEREOF - The present invention discloses a data transmission device and method thereof, and a data reception device and method thereof. The data transmission method in the present invention includes the following steps: encoding information data to obtain mother codes; generating transmission data including the mother codes and repetition codes from the mother codes, wherein parts of the mother codes with low reliability are selected to be repetition codes according to the modulation type of the mother codes; modulating the transmission data; transmitting the modulated data. | 09-29-2011 |
20120008545 | WIRELESS COMMUNICATION SYSTEM AND DATA TRANSMISSION METHOD THEREOF - The invention provides a wireless communication system and a data transmission method thereof. The wireless communication system includes a base station, a mobile station and a relay station which is transparent to the mobile station. The method includes that: the base station receives a first signal sent from the mobile station, and decodes the first signal. When the result of the decoding is incorrect, the base station sends a response to the relay station for indicating that the decoding is incorrect, but it does not send a response to the mobile station for indicating that the decoding to be incorrect. | 01-12-2012 |
20120033723 | METHOD, PRE-CODING APPARATUS AND WIRELESS COMMUNICATION SYSTEM FOR MULTIPLE-INPUT MULTIPLE-OUTPUT COLLABORATIVE COMMUNICATION - A method for multiple-input multiple-output (MIMO) collaborative communication in a wireless communication system includes at least one user equipment and M base stations performing collaborative communication with the user equipment. Here, M is an integer that is greater than or equal to 2. The method includes the following processes for each user equipment: a first level of MIMO pre-coding process is performed for each base station to acquire each first level of pre-coding matrix corresponding to each base station; a second level to the X-th level of MIMO pre-coding process is performed sequentially to acquire the second level to the X-th level of pre-coding matrices of the corresponding base stations. Here, X is an integer that is greater than or equal to 2. A pre-coding device, a user equipment and a wireless communication system related to the method are also provided. | 02-09-2012 |
20120044978 | COMMUNICATION APPARATUS, BASE STATION AND COORDINATED MULTIPOINT COMMUNICATION METHOD - The communication apparatus includes: a channel estimating unit for acquiring a channel estimation value of a channel between the communication apparatus and a cell base station of a cell in which the communication apparatus is located; a transmitter transmitting the channel estimation value or information based on the channel estimation value to the cell base station; a receiver receiving coordinated multipoint (CoMP) message from the cell base station, the CoMP message indicates the CoMP transmission mode, the codebook or precoding matrix used by the cell base station, and the codebook or precoding matrix used by a coordinated base station that coordinates with the cell base station; a channel matrix forming unit for acquiring a channel matrix according to the CoMP message; and a decoder decoding received signals according to the channel matrix and the CoMP message. | 02-23-2012 |
20120045018 | COMMUNICATION APPARATUS, COMMUNICATION METHOD AND BASE STATION - The present invention relates to communication apparatus, communication method and base station. The communication apparatus has a plurality of antennas and is capable of using a Multi-Input Multi-Output (MIMO) technique, comprising: a MIMO mode determining unit configured to determine a MIMO mode to be adopted; a precoding matrix information determining unit configured to determine precoding matrixes according to the determined MIMO mode; a transmitting unit configured to transmit information related to the precoding matrix, wherein, in case the MIMO mode to be adopted is a single-cell multi-user MIMO mode, the precoding matrix information determining unit determines a precoding matrix to be used by a service base station in a cell where the communication apparatus locates to communicate with the communication apparatus, and determines a precoding matrix to be used by the service base station to communicate with other communication apparatus in the cell which is grouped with the communication apparatus. | 02-23-2012 |
20120135781 | BASE STATION AND METHOD FOR TRANSMITTING ADJACENT BASE STATION INFORMATION - The embodiments of the present invention relate to a base station and a method for transmitting adjacent base station information. The base station comprising: an information acquiring unit configured to acquire information of respective adjacent base stations relevant to a terminal to be handed-over; a determining unit configured to, according to the information, determine information relevant to the adjacent base stations to be transmitted to the terminal; and a transmitting unit configured to transmit the information relevant to the adjacent base stations determined by the determining unit to the terminal. | 05-31-2012 |
20120163496 | METHOD AND APPARATUS FOR GENERATING PRE-CODING MATRIX CODEBOOK - This disclosure relates a method and apparatus for generating pre-coding matrix codebook. The method for generating pre-coding matrix codebook, comprising: acquiring a universal set of pre-coding matrixes in a first format; acquiring a universal set of pre-coding matrixes in a second format; selecting a first predetermined number of pre-coding matrixes in the first format from the universal set of pre-coding matrixes in the first format; and selecting a second predetermined number of pre-coding matrixes in the second format from the universal set of pre-coding matrixes in the second format, according to the selected first predetermined number of pre-coding matrixes in the first format. | 06-28-2012 |
20120189082 | BASE STATION, MULTI-ANTENNA COMMUNICATION SYSTEM AND COMMUNICATION METHOD THEREOF - A User equipment selecting first user equipment in a mode of precoding transmission and second user equipment in a mode of diversity transmission; a parameter determining a modulation mode, the number of transmission layers and a precoding matrix according to channel quality information, precoding matrix information and number of transmission layers sent from the first user equipment and channel quality information and number of transmission layers sent from the second user equipment; according to the modulation mode and the number of transmission layers, generating first and second symbol sequence from first and second source data; hierarchically modulating the first and the second symbol sequence to generate a mixed symbol sequence; layer mapping and precoding for the mixed symbol sequence to generate transmission signals; and transmitting the precoding matrix and the number of transmission layers to the second user equipment; sending the transmission signals to the first and second user equipments. | 07-26-2012 |
20120275415 | METHOD AND APPARATUS FOR CONVEYING DOWNLINK SCHEDULING SIGNALING - A method and an apparatus for conveying downlink scheduling signaling. The method comprises: generating a plurality of masking sequences corresponding to a plurality of predetermined downlink scheduling information including downlink physical resource assignment indicating information or power assignment information for a Demodulation Reference Signal (DMRS); and selecting a corresponding masking sequence from the plurality of masking sequences based on downlink scheduling information to be notified to a User Equipment (UE), and masking a Cyclic Redundancy Check (CRC) of a corresponding downlink control channel of the user equipment with the selected masking sequence for transmission. | 11-01-2012 |
20120275532 | METHOD AND DEVICE FOR LAYER MAPPING AND METHOD AND DEVICE FOR GENERATING LAYER MAPPING PATTERNS - A device for mapping code words to layers in a Multi-Input Multi-Output (MIMO) system, and for generating layer mapping patterns that include a mapping step, wherein each code word of multiple code words is mapped by mapping different code words of the multiple code words to different layer pairs of L layers on each symbol of multiple symbols, each layer pair is composed of two layers of the L layers, wherein L=2M and M is an integer that is larger than 1; in the method, each code word is circularly mapped on the multiple symbols to all layer pairs that can be generated by the L layers. Accordingly, the diversity performance can be improved through mapping each code word circularly on the multiple symbols to all layer pairs that can be generated by the multiple layers, thus the decoding performance is improved. | 11-01-2012 |
20120281659 | METHOD AND DEVICE FOR FEEDING BACK SPATIAL CHANNEL STATE - A method for feeding back spatial channel state and a device for feeding back spatial channel state are disclosed by the invention. The method for feeding back spatial channel state according to an embodiment of the present invention includes: determining the probability of being scheduled of the spatial channel; determining feedback information based on the probability of being scheduled of the spatial channel; and transmitting the determined feedback information; wherein more feedback information is used for the spatial channel having high probability of being scheduled than that of the spatial channel with low probability of being scheduled. | 11-08-2012 |
20120287966 | Code Generating Apparatus, Reference Signal Generating Apparatus, and Methods thereof - A demodulation reference signal generator includes a non-correlation sequence generator to generate a non-correlation sequence for RS of a first resource block; a first spectrum spreading unit to spread spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; a second spectrum spreading unit to spread spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, using a second group of Codes; the first and second frequency resources are adjacent frequency resources used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and a mapping unit to map the spectrum-spread elements to the first and second frequency resources. | 11-15-2012 |
20120294257 | METHOD, BASE STATION AND CORRESPONDING MOBILE STATION FOR OBTAINING DOWNLINK CHANNEL DIRECTIONAL INFORMATION - Disclosed in the present invention is a method in the Multiple Input Multiple Output system for obtaining downlink channel directional information. The method includes steps: a base station receives downlink channel directional information which is fed back by a mobile station during the feedback period, and determines the relation between an uplink channel directional information and the received downlink channel directional information; the base station also estimates the downlink channel directional information of non-feedback sub-frame by use of the relation, those non-feedback sub-frame are not fed back during the feedback period. Furthermore, a base station and corresponding mobile station in MIMO system are also provided in the present disclosure. | 11-22-2012 |
20120294382 | METHOD AND DEVICE FOR GENERATING PRECODING MATRIX CODEBOOK - Generating precoding matrix codebooks for a communication system that includes: determining at least one correlation antenna group formed by antenna units with correlation of predefined degree among multiple antenna units in the communication system (S | 11-22-2012 |
20130016639 | METHOD AND APPARATUS FOR PERFORMING CARRIER MANAGEMENT IN CARRIER AGGREGATION SYSTEM - A method and device for carrier management in a carrier aggregation system, includes signaling which carries an additional carrier measurement indication sent to a User Equipment (UE); a measurement report received from the UE; when the downlink traffic of the UE increases, if the recorded carriers in the current downlink carrier set of the UE can not meet the requirement of the downlink traffic data rate, according to the additional carrier measurement report, at least one additional carrier is configured and activated, and the UE is notified to perform the corresponding configuration operation. In addition, according to the measurement result and the change in the downlink traffic of the UE, the base station can also perform the deactivation, activation replacement and removal of the additional carrier for the user, and notify the UE to perform the corresponding configuration operations. | 01-17-2013 |
20130028241 | METHOD FOR SENDING UPLINK SOUNDING REFERENCE SIGNAL, METHOD FOR ESTIMATING CHANNEL, MOBILE TERMINAL, BASE STATION AND WIRELESS COMMUNICATION SYSTEM - A method for sending an uplink sounding reference signal (SRS), a method for estimating a channel, a mobile terminal and a base station are provided. The method for sending the uplink SRS includes: processing the uplink SRS with masks to obtain a plurality of uplink SRSs processed by the masks; sending the plurality of uplink SRSs processed by the masks on each of numerous time slots distributed to reference signals. The technical solution is able to improve the capacity of the SRS. | 01-31-2013 |
20130044716 | METHOD AND APPARATUS FOR APERIODICALLY TRANSMITTING SOUNDING REFERENCE SIGNAL - A method and apparatus that includes configuring the parameters of the sounding reference signal for the channel which is to be detected by a user device, in order to allocate the resource of the sounding reference signal for the user device; transmitting the information, which includes the sounding reference signal resource allocated to the user device, to the user device through a high layer signaling; and transmitting an activation signal to the user device through a low layer signaling to activate the user device to transmit the sounding reference signal. Therefore, an activation signal is transmitted to the user device by transmitting a low layer signaling with higher speed, thus the use efficiency of the resource of the sounding reference signal of the system can be improved, and more users can be supported by the system. | 02-21-2013 |
20130044717 | METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNALS AND PARAMETERS THEREOF, BASE STATION AND MOBILE STATION - A method for transmitting sounding reference signals (SRSs) and parameters thereof, a base station and a mobile station are provided by the present invention. The method for transmitting sounding reference signals includes: according to SRS parameters for one antenna received from a base station, allocating SRS resources for one antenna in a mobile station; according to the received SRS parameters and based on the predetermined relationships between SRS parameters of each antenna in the mobile station, determining SRS parameters of other antennas in the mobile station; according to the determined SRS parameters of the other antennas, allocating SRS resources for the other antennas; and transmitting corresponding SRS signals on the allocated SRS resources via the one antenna and the other antennas respectively. The method and apparatus can save signaling resources in a wireless communication system. | 02-21-2013 |
20130044833 | METHOD FOR FEEDING BACK PRECODING MATRIX INFORMATION AND MOBILE STATION THEREOF - A method for feeding back pre-coding matrix information and a mobile station thereof are provided. The method includes: determining multiple kinds of pre-coding matrix information corresponding to multiple multi-input multi-output (MIMO) modes; and feeding back multiple kinds of pre-coding matrix information. The present invention can feedback pre-coding matrix information adapting for multiple multi-input multi-output modes. | 02-21-2013 |
20130070580 | APPARATUS AND METHOD FOR ORTHOGONAL COVER CODE (OCC) GENERATION, AND APPARATUS AND METHOD FOR OCC MAPPING - An apparatus and method for Orthogonal Cover Code (OCC) generation, and OCC mapping, includes generating the first group of OCC sequences, which is used to generate the first group of OCC sequences; generating the second group of OCC sequences, which is used to mirror the columns of the first group of OCC sequences to generate the second group of OCC sequences; generating the third group of OCC sequences, which is used to perform cyclic shift on the column vectors of the first group of OCC sequences to generate the third group of OCC sequences; and generating the fourth group of OCC sequences, which is used to mirror the columns of the third group of OCC sequences to generate the fourth group of OCC sequences. | 03-21-2013 |
20130107746 | METHOD FOR REFERENCE SIGNAL TRANSMISSION, METHOD FOR CHANNEL QUALITY ESTIMATION, MOBILE STATION, BASE STATION AND WIRELESS COMMUNICATION SYSTEM | 05-02-2013 |
20130121318 | RADIO COMMUNICATION SYSTEM CHANNEL STATE INFORMATION FEEDBACK METHOD AND DEVICE - A method for Channel State Information (CSI) feedback in a wireless communication system includes: determining parameters required for the CSI feedback in a first wireless communication system, so that a feedback structure of the first wireless communication system in Physical Uplink Control Channel (PUCCH) is based on a feedback structure of a second wireless communication system in the PUCCH; notifying the parameters to a user equipment; transmitting a Channel State Information Reference Symbol (CSI-RS) to the user equipment periodically, so that the user equipment calculates the CSI required to be fed back; and receiving the CSI fed back by the user equipment according to the feedback structure of the first wireless communication system in the PUCCH in response to the CSI-RS, wherein information fed back for each BP is information obtained by jointly encoding optimum subband Channel Quality Information (CQI) with optimum subband Pre-encoding Matrix Information (PMI) in the BP. | 05-16-2013 |
20130128847 | METHOD AND DEVICE FOR TRANSMITTING DOWNLINK CONTROL INFORMATION, METHOD AND DEVICE FOR RECEIVING DOWNLINK CONTROL INFORMATION, TERMINAL, BASE STATION AND COMMUNICATION SYSTEM - The present invention relates to a method and a device for transmitting downlink control information, a method and a device for receiving downlink control information and a terminal, a base station and a communication system which includes the terminal and the base station. The Resource Indication Values (RIVs) in the Downlink Control Information (DCI) are set to different values based on the function of the DCI to be transmitted according to the embodiment provided, wherein the different scopes of values are corresponding to the different functions of DCI. The different functions may be used as the configuration signaling of Sounding Reference Signal (SRS), or used as the scheduling signaling of Physical Uplink Shared Channel (PUSCH). The embodiment provided can distinguish the different downlink control information with the same length using the Resource Indication Value (RIV) in the Downlink Control Information (DCI). | 05-23-2013 |
20130136084 | METHOD, MOBILE STATION AND MULTI-CARRIER COMMUNICATION SYSTEM FOR TRANSMITTING UPLINK RESPONSE SIGNAL - A method and mobile station for transmitting uplink response signal are provided. A method for transmitting uplink response signal in a multi-carrier communication system is provided, in the multi-carrier communication system, each uplink carrier is associated with a group of downlink carriers, the group of downlink carriers are part of all downlink carriers in the multi-carrier communication system. The method includes distributing uplink control channel resource for each downlink carriers associated with an uplink main carrier in the uplink main carrier; according to a response signal state, selecting uplink control channel resource from the distributed uplink control channel resource for transmitting uplink response signal and selecting modulated symbol mapping; and transmitting the uplink response signal by using the selected uplink control channel resource and the modulated symbol mapping. | 05-30-2013 |
20130137447 | INTER-CELL INTERFERENCE COORDINATION METHOD AND DEVICE FOR CONTROL CHANNEL AND DATA CHANNEL - An inter-cell interference coordination for a control channel where a base station of a first cell receives information, that is needed during allocating control channel resources to each user of a second cell that needs interference coordination, from a base station of the second cell, determines the control channel resources which will be allocated to the users of the second cell that need interference coordination, allocates the control channel resources used by the users of the first cell, judges whether search spaces of the control channel resources that are allocated to the users of the first cell and second cell satisfy an orthogonal requirement, and if not, forbids the users of the first cell to use the control channel resources that are allocated to the users of the first cell. | 05-30-2013 |
20130155987 | Method of Resource Allocation, System and Transmitter - A method of resource allocation, system and transmitter that the method includes scheduling a plurality of receivers by a transmitter according to requests for transmitting uplink data sent by the plurality of receivers, determining, respectively for each of the plurality of receivers, the uplink shared transmission channel resources, the used mapping relation of resources and the final cyclic shift n(DM_RS) for indicating an uplink feedback channel, according to the result of scheduling, a predefined mapping relation of resources, a spare mapping relation of resources and the n(DM_RS) and notifying the plurality of receivers by the transmitter of the determined uplink shared transmission channel resources of the plurality of receivers, the used mapping relation of resources and the final n(DM_RS). | 06-20-2013 |
20130163570 | BASE STATION ON THE BASIS OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SCHEME AND INTERFERENCE COORDINATION METHOD THEREOF - A base station on the basis of orthogonal frequency division multiplexing solution and an interference coordination method thereof are provided. The base station can include an interference estimation unit, which estimates the interference state of each physical resource block according to the feedback information from the user equipment, and in the condition that the interference of the physical resource block is greater than or equal to a first threshold and less than or equal to a second threshold which is greater than the first threshold, the interference of the physical resource block is estimated as medium interference state. The base station can also include an interference coordination request unit, which at least responses the medium interference state estimation to transmit the interference coordination request to one or a plurality of predetermined base stations, wherein interference coordination request includes the information for indicating the interference state of said physical resource block. | 06-27-2013 |
20130182668 | METHOD FOR PROCESSING CARRIER STATE IN CARRIER AGGREGATION SYSTEM, AND USER EQUIPMENT - A method for processing carrier state in a carrier aggregation system and a User Equipment (UE) are provided, so as to avoid the random access failure caused by current deactivation mode of the Secondary Component Carrier (SCC). In one embodiment of the present invention, the method includes: performing a random access on a SCCs pair; stopping or ignoring a deactivation timer of a downlink SCC of the SCCs pair before the random access succeeds. | 07-18-2013 |
20130188583 | METHOD, TERMINAL DEVICE AND BASE STATION DEVICE FOR TRANSMITTING UPLINK RESPONSE SIGNALS - A method for transmitting uplink response signals is provided. In the method, at the terminal device side, the signal which represents whether the transmission block is received correctly is sent in Physical Uplink Control Channel (PUCCH) corresponding to the specific transmission block, so that a Base Station (BS) is informed which transmission blocks are received correctly. The base station device side determines that the transmission blocks excluding the transmission blocks which are determined to be received correctly are retransmitted according to the feedback response signals instead of retransmitting all the transmission blocks, thus improving the efficiency of data transmission, reducing the unnecessary retransmission, and benefiting full use of the communication resources. The related terminal device and base station device for implementing the method are also provided. | 07-25-2013 |
20130188750 | METHOD AND APPARATUS FOR DETERMINING PRECODING MATRIX, WIRELESS COMMUNICATION SYSTEM - A method and apparatus for determining a precoding matrix and a wireless communication system. In data retransmission, when the retransmission rank is less than an initial transmission rank, the transmitting end selects a matrix having a maximum similarity with an initial transmission precoding matrix in spatial direction according to the retransmission rank. In multiple data retransmissions, precoding matrixes for the retransmissions are different from each other and may have a minimum similarity in the spatial direction, but have a maximum similarity with the initial transmission precoding matrix in the spatial direction. Or, the similarity between each retransmission precoding matrix and the initial transmission precoding matrix in the spatial direction progressively decreases. When precoding matrixes (or identity matrixes) are required for the initial transmission, precoding matrixes having the minimum similarity with each other in the spatial direction are selected according to the retransmission rank, and then orderly used in multiple retransmissions. | 07-25-2013 |
20130195079 | CONTENTION-BASED UPLINK DATA TRANSMISSION METHOD, APPARATUS AND SYSTEM - A contention-based uplink data transmission method, apparatus and system are provided. The method may include that: a main control node in a communication system receives data transmitted via uplink contention transmission resources, and decodes the data, wherein the uplink contention transmission resources are uplink transmission resources which the main control node allocates to a plurality of terminal nodes in the communication system and via which the plurality of terminal nodes transmits data in a contention-based way; and the main control node sends reception status information to each terminal node transmitting the data via the uplink contention transmission resources, wherein the reception status information reflects whether the data transmitted from each terminal node has been decoded successfully. | 08-01-2013 |
20130195214 | METHOD AND DEVICE FOR GENERATING PRECODING MATRIX CODEBOOK AND METHOD FOR DESIGNATING PRECODING MATRIX - The present invention discloses a method and device for generating precoding matrix codebook and a method for a base station designating precoding matrix in multi-antenna communication system. The method for generating a precoding matrix codebook includes the following steps: the step of obtaining a selection probability: obtaining a selection probability allowed for each Rank by the multi-antenna communication system in the case of a certain Signal Noise Ratio (SNR); the step of determining a codebook size: determining a precoding matrix codebook size for a corresponding Rank according to the selection probability for each Rank in the case of the certain SNR; and the step of determining a codebook: determining a precoding matrix codebook for each Rank from the precoding matrix complete set according to the codebook size for each Rank in the case of the certain SNR. | 08-01-2013 |
20130208685 | METHOD FOR TRANSMITTING UPLINK RESPONSE SIGNALS, BASE STATION, MOBILE STATION AND COMMUNICATION SYSTEM - A method for transmitting uplink response signals, base station, mobile station and communication system, includes judging whether to use a downlink secondary component carrier to transmit data to a mobile station; if the judging result is positive, allocating resources according to the number of transmission blocks for transmitting the downlink data in the secondary component carrier, accordingly the mobile station is able to use the resources corresponding to a preconfigured primary component carrier and the resources allocated to the secondary component carrier to select uplink resources for transmitting response signals. | 08-15-2013 |
20130208686 | MICRO BASE STATION, MICRO BASE STATION INTERFERENCE COORDINATION METHOD, AND USER TERMINAL - Micro base station interference coordination includes: shifting, relative to subframes in a macro base station subframe configuration, subframes in the subframe configuration used in the micro base station by several subframes, wherein the number of the shifted subframes causes subframes in the micro base station subframe configuration, which are corresponding to a specific channel in the macro base station subframe configuration, not to transmit any signal un-allocatable by the micro base station after the shifting; emptying uplink subframes in the micro base station subframe configuration after the shifting, which are corresponding to downlink subframes containing a designated channel in the macro base station subframe configuration; and emptying the subframes in the micro base station subframe configuration after the shifting, which are corresponding to the specific channel in the macro base station subframe configuration, or causing portions of the subframes corresponding to the specific channel not to transmit any signal. | 08-15-2013 |
20130215759 | METHOD, UE AND BASE STATION FOR SENDING OR RECEIVING FEEDBACK INFORMATION OF DOWNLINK DATA - A method for sending feedback information of downlink data, which is applied to a user equipment in a multi-carrier wireless communication system, including: receiving downlink data sent on a plurality of downlink component carriers by a base station; detecting whether the downlink data are correctly received on the plurality of downlink component carriers respectively, and generating a plurality of acknowledge signals corresponding to the plurality of component carriers according to detection results; and selecting corresponding Physical Uplink Control CHannel (PUCCH) resources to send the feedback information of the downlink data to the base station according to correspondence relationship between the total number of the plurality of acknowledge signals and the maximum Component Carrier index number that is configured, wherein the feedback information comprises the total number of the plurality of acknowledge signals. | 08-22-2013 |
20130215853 | METHOD, USER EQUIPMENT, BASE STATION AND SYSTEM FOR DETERMINING COMPONENT CARRIER SCHEDULED IN CROSS-CARRIER SCHEDULING - A method, user equipment, base station and system for determining a component carrier scheduled in cross-carrier scheduling. The method for determining the scheduled component carrier includes: a user equipment (UE) detects scheduling information sent by a base station in a first dedicated searching space corresponding to a scheduling component carrier, the first dedicated searching space includes at least one candidate physical downlink control channel (PDCCH) ( | 08-22-2013 |
20130217400 | METHOD AND BASE STATION, USER EQUIPMENT AND SYSTEM FOR ACTIVATING COEXISTENCE WORK MODE - A method for activating coexistence work mode and a base station, user equipment and system using the method. The method for activating coexistence work mode includes: a user equipment in a first communication system transmits an activation mode request, which requests for entering the coexistence work mode, to the base station in the first communication system; in the coexistence work mode, using different transmission resource, the user equipment performs a first communication with the base station and performs a second communication with a device of a second communication system which is different from the first communication system, respectively; the user equipment activates the coexistence work mode based on configuration information of the coexistence work mode, wherein, the configuration information of the coexistence work mode is preset for the user equipment by the base station, and is conserved in the user equipment. | 08-22-2013 |
20130242874 | METHOD FOR DETECTING INTERFERENCE USER, HOME BASE STATION AND USER EQUIPMENT - Detecting interference user and home base station including: pre-configuring the cell type information of a home base station as an open cell type, and broadcasting the cell type information by the home base station in the cell; determining whether user equipment is one belonging to the home base station by the home base station according to the related information transmitted by the user equipment via a random access procedure, wherein the related information includes user information or a random access preamble; and determining by the home base station that the user equipment is an interference user, if the user equipment is not one belonging to the home base station. | 09-19-2013 |
20130242913 | METHOD FOR TRANSMITTING UPLINK RESPONSE SIGNAL, TERMINAL EQUIPMENT AND BASE STATION - A method includes receiving downlink data transmitted by a base station via a primary and secondary component carrier in a predetermined order; detecting the received downlink data to obtain indication information on correctly receiving and wrongly receiving the downlink data, or no control information received, allocating corresponding uplink resources according to the primary and secondary component carrier where the detected downlink data is present; arranging the indication information obtained through detecting according to the order of transmitting the downlink data by the base station to obtain an indication information sequence; generating an uplink response signal and determining the uplink resources used to feed back the uplink response signal; transmitting the uplink response signal to the base station using the determined uplink resources, so the base station determines the downlink data retransmitted according to the uplink response signal fed back in the uplink resources, enabling the BS avoid unnecessary data retransmission. | 09-19-2013 |
20130279359 | METHOD FOR MEASURING CHANNEL STATE INFORMATION, UE AND BASE STATION - A method for measuring channel state information, a UE and base station are described. The method includes: receiving in a subframe of Pico cell, by the user equipment, the channel state information reference symbol or common reference symbol of the Pico cell, the subframe of Pico cell corresponding to an almost blank subframe in a measurement set; and measuring the channel state information of the Pico cell based on the channel state information reference symbol or common reference symbol of the Pico cell. In certain embodiments, the UE configured with coordinated multi-point mode may measure the CSI of the Macro cell and the Pico cell without muting or with decreased muting by using the measurement set, thereby overcoming or partially overcoming the problems brought by RE muting. | 10-24-2013 |
20130279432 | METHOD, DEVICE, TERMINAL, BASE STATION AND SYSTEM FOR CROSS-CARRIER SCHEDULING - A method, device, terminal, base station and system for cross-carrier scheduling are disclosed. Said method for cross-carrier scheduling includes: according to the number of component carriers involved in cross-carrier scheduling, adjusting the size of the control part, which is used for transmitting control information, in the frame corresponding to the component carrier; performing cross-carrier scheduling by utilizing the adjusted control part. According to the present invention, the situation that the number of component carriers involved in cross-carrier scheduling increases can be adapted to, and the block situation caused by no resources for transmitting the control information can be avoided. | 10-24-2013 |
20130286970 | METHOD FOR RESOURCE ALLOCATION, METHOD FOR CHANNEL STATE INFORMATION TRANSMISSION, BASE STATION AND USER EQUIPMENT - A method for resource allocation, method for channel state information transmission, base station and user equipment. Wherein the method for resource allocation includes: determining, by a base station, that it is necessary for a UE to report aperiodic CSI of relevant downlink CCs; and allocating, by the base station, corresponding resources to the UE according to the number of the relevant downlink CCs. The base station allocates corresponding resources to the UE in accordance with the number of relevant downlink CCs, resource allocation is flexible, and the transmission of UCI in case of multiple carriers is supported. | 10-31-2013 |
20130294338 | METHOD AND DEVICE FOR INTERFERENCE COORDINATION AND COMMUNICATION SYSTEM, MOBILE STATION AND BASE STATION - A method and device for interference coordination in a communication system and the corresponding communication system, mobile station and base station (BS) are disclosed. In the method for interference coordination, a BS of a Pico Cell shifts a transmission frame backwards; a BS of a Macro Cell selects a sub-frame for transmitting a Channel State Information-Reference Signal (CSI-RS) from transmission frames of the Macro Cell itself, to enable the sub-frame of the BS of Macro Cell for transmitting CSI-RS to at least not overlap a sub-frame of the BS of the Macro Cell for transmitting a public channel and a sub-frame of the BS of Pico Cell partially; and the sub-frame of the BS of the Macro cell for transmitting the public channel at least does not overlap the sub-frame of the BS of Pico Cell for transmitting the public channel partially. | 11-07-2013 |
20130294381 | Method for Transmitting Sounding Reference Symbol, Base Station and User Equipment - A method for transmitting a sounding reference symbol, that includes generating by a base station downlink control information for uplink transmission, the downlink control information includes indication information on indicating user equipment whether to transmit an aperiodic sounding reference symbol and on the resource used in transmitting the aperiodic sounding reference symbol; and a bit of a new data indicator in the downlink control information and a bit of an aperiodic sounding reference symbol request being used to carry the indication information and transmitting the downlink control information to the user equipment, such that the user equipment transmits the aperiodic sounding reference symbol according to the indication information contained in the downlink control information. | 11-07-2013 |
20130294382 | METHOD FOR TRIGGERING APERIODIC SOUNDING REFERENCE SYMBOL, BASE STATION AND USER EQUIPMENT - A method for triggering an aperiodic sounding reference symbol, a base station and a user equipment. Including not releasing by a user equipment a resource used for transmitting an aperiodic sounding reference symbol configured by a base station for the user equipment, if the user equipment desynchronizes or the user equipment fails to transmit a scheduling request to the base station; executing a random access procedure by the user equipment; and transmitting by the user equipment the aperiodic sounding reference symbol on the unreleased resource used for transmitting an aperiodic sounding reference symbol configured by a base station for the user equipment according to indication information issued by the base station for indicating the user equipment to transmit an aperiodic sounding reference symbol if the random access succeeds. | 11-07-2013 |
20130294383 | METHOD FOR SETTING SUBFRAMES, MACRO BASE STATION, MOBILE TERMINAL AND COMMUNICATION SYSTEM - A method for setting subframes, a macro base station, a mobile terminal and a communication system. The method for setting subframes in a macro base station comprising: receiving, from a micro base station, information that indicates main carrier and auxiliary carrier used by a mobile terminal at cell edge of the micro base station; and setting limited blank subframes on a carrier corresponding to the auxiliary carrier and used by the macro base station, according to the information; wherein the limited blank subframe is a subframe having a control area which can be used for transmitting control information, and a data area in which only a part of subcarriers can be used for transmitting data. | 11-07-2013 |
20130294412 | METHOD FOR AVOIDING IN-DEVICE COEXISTENCE INTERFERENCE IN WIRELESS COMMUNICATION TERMINAL, TERMINAL AND ENODEB - The present invention provides a method, terminal and base station for avoiding device coexistence interference of a wireless communication terminal. The wireless communication terminal includes a Long Term Evolution (LTE)/Long Term Evolution Advanced (LTE-A) communication module and a coexistence communication module. The method includes the following steps: a first sending step, sending a coexistence communication module startup notification message to the base station, and a first interference avoidance step, before sending auxiliary information to the base station, the wireless communication terminal using a Time Division Multiplexing (TDM) mode between the LTE/LTE-A communication module and the coexistence communication module. | 11-07-2013 |
20130301575 | METHOD FOR ALLOCATING RESOURCE, METHOD FOR TRANSMITTING CHANNEL STATE INFORMATION, BASE STATION AND USER EQUIPMENT - A method for transmitting channel state information, base station and user equipment, includes generating by a base station control information for uplink transmission in a user equipment specific search space, the control information includes indication information indicating the user equipment whether to report aperiodic channel state information of related downlink component carriers, and indicating the index number(s) and number of the related downlink component carriers when reporting the aperiodic channel state information of the related downlink component carriers, the index number of modulation and coding scheme and the used resource. The indication information is borne by the bit of a new data indicator in the control information and the bit of an aperiodic channel quality indication request; and transmitting by the base station the control information to the user equipment. | 11-14-2013 |
20130301589 | METHOD FOR REPORTING CHANNEL STATE INFORMATION, BASE STATION AND USER DEVICE - A method for reporting channel state information, base station and user equipment. The method includes: configuring a set of multiple measurement subsets by a base station; correspondingly storing the configured set of multiple measurement subsets and corresponding indication information, so as to establish mapping relation between the indication information and the set of measurement subsets; and notifying the mapping relation to UE, such that the UE, in needing to report channel state information, uses the obtained indication information and the mapping relation to determine measurement subsets related to reporting the channel state information, so as to report channel state information of the measurement subsets to the base station. | 11-14-2013 |
20130315087 | MOBILE TERMINAL, MICRO BASE STATION, MACRO BASE STATION, COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A mobile terminal, a micro base station, a macro base station, a communication system and a communication method. The method includes receiving from a micro base station a designation of specific subframe and a designation of feedback mode; judging whether a current subframe is a specific subframe designated by the micro base station; and measuring and feeding back the channel condition of the current subframe in a joint transmission feedback mode when the current subframe is the specific subframe designated by the micro base station, and measuring and feeding back the channel condition of the current subframe in a feedback mode designated by the micro base station when the current subframe is not the specific subframe designated by the micro base station. | 11-28-2013 |
20130316721 | METHOD AND DEVICE FOR ALLOCATING UPLINK CHANNEL RESOURCE OF COOPERATIVE MULTI-POINT TRANSMISSION/RECEPTION - A method, device, system, User Equipment (UE), computer readable medium and programme product for allocating uplink channel resource of cooperative multi-point transmission/reception are disclosed. The method includes receiving involved information for allocating uplink control channel resource or uplink detection reference signal resource in at least one of other cells; according to the information for allocating the uplink control channel resource or the uplink detection reference signal resource in the involved main cell and at least one of other cells, determining the uplink channel resource which does not overlap the uplink control channel resource or the uplink channel resource allocated for an uplink communication in the main cell and at least one of other cells; and allocating the determined uplink channel resource for the uplink cooperative multi-point transmission/reception in the involved main cell and at least one of other cells. | 11-28-2013 |
20130322317 | METHOD, DEVICE AND TERMINAL EQUIPMENT FOR REDUCING INTERFERENCE AMONG COMMUNICATION MODULES IN TERMINAL EQUIPMENT - A method, device and terminal equipment for reducing interference among communication modules in the terminal equipment are provided in the present invention. Wherein, said communication modules comprise communication system modules in the terminal equipment and coexistence system modules coexisting with said communication system modules. Said method for reducing interference among communication modules in the terminal equipment comprises: the information related to work time of said coexistence system modules is transmitted to a base station which the communication system modules belong to as assistant information; said base station configures time division multiplexing configuration information according to said assistant information; and the time division multiplexing is performed among each of the communication modules according to said time division multiplexing configuration information. By the present invention, the interference among each of the communication modules in the terminal equipment can be reduced. | 12-05-2013 |
20130322321 | DATA TRANSMISSION METHOD, WIRELESS COMMUNICATION SYSTEM, DESTINATION NODE AND RELAY NODE - A method, a wireless communication system, destination node and relay node includes receiving by a destination node at current time slot the data transmitted by at least one source node; demodulating and decoding the data transmitted by at least one source node to obtain a decoding result; receiving the decoding result transmitted by first relay nodes, the decoding result being obtained by the first relay nodes through demodulating and decoding the data transmitted by at least one source node and received at the current time slot; and notifying the source node to retransmit the data or transmit new data at the next time slot by the destination node according to the result of the demodulating and decoding of the data of the source node and the decoding result of the first relay nodes. | 12-05-2013 |
20130324133 | METHOD AND DEVICE FOR SELECTING A CELL IN HETEROGENEOUS NETWORK - The present invention discloses a method and a device for selecting a cell in a heterogeneous network. The method comprises estimating signal to noise ratios when a terminal is scheduled by a macro base station and a low power base station respectively by using the parameters of the macro base station and the low power base station measured by the terminal and related to signal reception quality (S | 12-05-2013 |
20140043995 | BASE STATION, COMMUNICATION TERMINAL AND METHOD FOR TRIGGERING INTERFERENCE AVOIDANCE MESSAGE FOR COMMUNICATION TERMINAL - A base station, a communication terminal and a method for triggering an interference avoidance message for a communication terminal. The communication terminal includes a Long Term Evolution (LTE) module and a communication module coexisted with the LTE module. The method includes: a measurement process for measuring a signal quality parameter and a traffic flow parameter; a traffic flow judgment process for judging whether the traffic flow parameter satisfies a predetermined condition; a signal quality judgment process for judging whether the signal quality parameter satisfies a predetermined condition; a triggering determination process for determining whether a trigging condition is satisfied according to a judgment result of the traffic flow judgment process and a judgment result of the signal quality judgment process; and transmitting the interference avoidance message when the triggering determination process determines that the trigging condition is satisfied. | 02-13-2014 |
20140050174 | METHOD FOR CONFIGURING RESOURCE, METHOD FOR TRANSMITTING RESPONSE SIGNAL, BASE STATION AND USER EQUIPMENT - A method for configuring resource, method for transmitting response signal, base station and user equipment. The method for configuring resource comprises: configuring a PHICH resource in a data region of a second slot in the data resources scheduled to user equipment in a current subframe. The base station may transmit a response signal via the configured data resource. As a new PHICH resource is configured, the problem of inadequate PHICH resources existed at present is solved. | 02-20-2014 |
20140050175 | CELL IDENTIFIER ALLOCATION APPARATUS AND METHOD, BASE STATION, READABLE PROGRAM AND MEDIUM - A cell identifier allocation apparatus and method, a base station, a readable program and a medium including acquiring location information of a macro base station and location information of each of a plurality of remote transmitting apparatuses connected to the macro base station; determining relative distances between the plurality of remote transmitting apparatuses and relative distances between the macro base station and each of the plurality of remote transmitting apparatuses; classifying the macro base station and the plurality of remote transmitting apparatuses into a plurality of sets, according to the relative distances between the plurality of remote transmitting apparatuses and the relative distances between the macro base station and each of the plurality of remote transmitting apparatuses; allocating cell identifiers to the plurality of remote transmitting apparatuses; and generating information to be transmitted to corresponding remote transmitting apparatus according to the allocated cell identifier. | 02-20-2014 |
20140050277 | METHOD AND APPARATUS FOR SELECTING MULTI-USER PAIRING IN A MULTI-USER MULTI-INPUT MULTI-OUTPUT SYSTEM - The method includes calculating by user equipment an SINR of each of precoding vectors in a precoding matrix; whether there is an SINR greater than a first threshold in the SINRs of the precoding vectors; selecting by the user equipment a precoding vector to which the SINR greater than the first predetermined threshold corresponds according to a predefined policy; and feeding back by the user equipment to a base station a PMI of the selected precoding vector and a quantified value of the corresponding SINR, or feeding back by the user equipment to a base station a PMI of the selected precoding vector, a quantified value of the corresponding SINR and a number of times of transformation to which the SINR corresponds, or feeding back by the user equipment to a base station only a number of times of transformation. | 02-20-2014 |
20140056267 | POWER COMPENSATING METHOD, USER EQUIPMENT AND BASE STATION - Embodiments of the present invention provide a power compensating method, user equipment and base station. The method comprises: receiving by the base station a pathloss value reported by the user equipment, or calculating the pathloss value according to a reference signal receiving power value reported by the user equipment; and compensating for power according to the pathloss value. With the embodiments of the present invention, power of signals may be compensated, and the power of the receiving side is made identical in uplink or downlink transmission, thereby multiplexing a transmission mode based on a codebook. | 02-27-2014 |
20140056269 | METHOD FOR CONFIGURING TRANSMISSION MODE, USER EQUIPMENT AND BASE STATION - Embodiments of the present invention provide method for configuring a transmission mode, user equipment and a base station. The method includes: receiving, by the user equipment, a higher layer signaling transmitted by the base station, the higher layer signaling containing information instructing the user equipment to configure a transmission mode; and configuring the transmission mode for the user equipment according to the information, the transmission mode being based on a CRS or a DM-RS. With the embodiments of the present invention, reusable bandwidth resources may be increased. | 02-27-2014 |
20140064394 | USER EQUIPMENT, BASE STATION AND METHOD FOR SELECTING REMOTE RADIO HEAD - The present invention relates to a User Equipment (UE), a base station and a method for selecting a Remote Radio Head (RRH). A UE, including: a storage unit configured to store a code book including a plurality of precoding matrixes which contain a precoding matrix having an element zero corresponding to an antenna; a precoding matrix selection unit configured to select the precoding matrix to be used according to the code book stored in the storage unit; and a report unit configured to report an index of the precoding matrix selected by the precoding matrix selection unit. In the preferred embodiments, elements of a same precoding matrix for antennas of same RRH are all zero or non-zero. | 03-06-2014 |
20140078923 | Information Acquiring Method and Base Station - An information acquiring method and a base station. The method comprises: receiving by a target base station reception status information of a multimedia broadcast multicast service of user equipment reported by a source base station when the user equipment is handed over between cells; wherein the reception status information comprises information indicating that the user equipment is receiving a multimedia broadcast multicast service, or information indicating that the user equipment finishes receiving a multimedia broadcast multicast service. With the embodiments of the present invention, the source base station of the user equipment notifies the target base station of reception status information of multimedia broadcast multicast service of the user equipment when the user equipment is handed over between cells, thereby guaranteeing the continuity of the MBMS of the user equipment. | 03-20-2014 |
20140078997 | MULTIPLE USER MULTI-INPUT MULTI-OUTPUT TRANSMISSION METHOD, USER EQUIPMENT AND BASE STATION - Embodiments of the present invention provide an MU-MIMO transmission method, user equipment and base station. The method comprises: receiving by user equipment a signaling indication indicative of supporting a user to use a layer index transmitted by a base station, the signaling indication including a first layer index and a sum number of layers of the user equipment; and demodulating a received resource according to the first layer index and the sum number of layers of the user equipment; wherein in the resource, consecutive layer indices are adopted for data corresponding to the same user equipment. With the embodiments of the present invention, a mapping manner from a codeword to a layer may be further limited and optimized, and compromise of the feedback overhead, feedback accuracy and system signaling overhead may be better achieved. | 03-20-2014 |
20140079095 | CODE GENERATING APPARATUS, REFERENCE SIGNAL GENERATING APPARATUS, AND METHODS THEREOF - A code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator includes generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively. | 03-20-2014 |
20140086086 | MULTI-USER MULTI-STREAM BEAMFORMING METHOD, APPARATUS, AND BASE STATION - The present invention relates to a multi-user multi-stream beamforming method and apparatus, and a base station. The multi-user multi-stream beamforming method includes the steps of: a) calculating a beamforming matrix of each user in the multi-user according to a minimum leakage principle; b) determining a user average Signal to Leakage Noise Ratio (SLNR) of the multi-user according to the beamforming matrix of each user; c) determining whether the user average SLNR is stable, and if the user average SLNR is not stable, returning to step a) to recalculate the beamforming matrix of each user by using the calculated beamforming matrix of each user. | 03-27-2014 |
20140112295 | DOWNLINK PRECODING METHOD AND DATA INTERACTING METHOD FOR COORDINATED MULTI-POINT TRANSMISSION SYSTEM AND APPARATUS - Embodiments of the present invention provide a downlink precoding method and data interacting method for coordinated multi-point transmission system and apparatus. The downlink precoding method includes: acquiring a precoding matrix indicator by a cooperating point and determining the precoding matrix of the cooperating point according to the precoding matrix indicator, the number of columns of the precoding matrix of the cooperating point being less than that of columns of the precoding matrix of a serving point; and performing, by the cooperating point, downlink precoding to the data to be transmitted according to the determined precoding matrix of the cooperating point. With the methods and apparatuses of the embodiments of the present invention, as the cooperating points participate only in the transmission of data of part of layers in the coordinated scenarios, the complexity of calculation and the feedback overhead are lowered in the UE end. | 04-24-2014 |
20140119321 | SOUNDING REFERENCE SYMBOL SENDING METHOD, BASE STATION, AND USER EQUIPMENT - A method for transmitting sounding reference symbol, a base station and user equipment. The method comprises: configuring, by a base station, user equipment of a CoMP transmission mode, with parameter configuration information for transmitting SRS, the parameter configuration information including a frequency comb of the SRS and one or more pieces of the following information: cyclic shift, root sequence information, power control information, and transmission duration information, of the SRS; and transmitting the parameter configuration information to the user equipment by the base station, such that the user equipment transmits the SRS to the base station according to the parameter configuration information. The method is simple and flexible, efficiently uses limited SRS resources, and solves the problem in the prior art. | 05-01-2014 |
20140119322 | POWER COMPENSATION METHOD, BASE STATION, AND TERMINAL EQUIPMENT - A power compensation method, base station and user equipment. The method includes: transmitting, by a base station, when an expanded UE-specific PDCCH is amplitude phase keying modulated, a first ratio of the EPRE of the expanded UE-specific downlink control channel to the EPRE of a DM-RS in a first time slot occupied by the expanded UE-specific PDCCH, so that the terminal equipment performs power compensation in decoding the received data transmitted by the base station according to the first ratio, thereby ensuring correct demodulation of the received data by the terminal equipment. | 05-01-2014 |
20140119335 | METHOD FOR TRANSMITTING DOWNLINK CONTROL SIGNALING, METHOD FOR SEARCHING DOWNLINK CONTROL SIGNALING AND APPARATUS USED FOR THE SAME - Embodiments of the present invention provide a method for transmitting downlink control signaling, a method for searching downlink control signaling and an apparatus used for the same. The method for transmitting includes: transmitting downlink control information (DCI) in a common search space of a control region of a wireless communications system, the DCI indicating a search space of a UE-specific physical downlink control channel (PDCCH) located in a data region of the wireless communications system, the DCI further including a predetermined identifier for identifying the DCI. With the methods and apparatuses of the embodiments of the present invention, the search space of the PDCCH may be dynamically adjusted, thereby saving signaling overhead, and avoiding inconsistence of the search space of the base station and that of the UE. | 05-01-2014 |
20140133345 | METHOD AND APPARATUS FOR ESTABLISHING MAPPING RELATIONSHIP AND METHOD AND APPARATUS FOR FEEDING BACK CHANNEL QUALITY INFORMATION - A method and apparatus for establishing a mapping relationship and for feeding back channel quality information. The methods are applicable to terminal equipment configured with a coordinated multiple-point feedback mode, the method for establishing a mapping relationship includes: determining, by terminal equipment, the number of bits for denoting differential channel quality information and mapping relationship between each of bit values of the differential channel quality information and an offset reference value according to a CoMP transmission mode, so as to feed back the differential channel quality information by using the mapping relationship; wherein in the mapping relationship, a plurality of offset reference values to which the bit values in an order from small to large correspond are a plurality of incremental integers. | 05-15-2014 |
20140133440 | METHOD FOR SENDING AND RECEIVING DOWNLINK CONTROL INFORMATION, BASE STATION, AND MOBILE TERMINAL - The present invention relates to methods for sending and receiving downlink control information, a base station, and a mobile terminal. The method for sending downlink control information comprises: sending first downlink control information to a mobile terminal, the first downlink control information being a part of downlink control information and comprising resource allocation information; on resource specified by the resource allocation information, sending second downlink control information to the mobile terminal, the second downlink control information being the other part, different from the first downlink control information, of the downlink control information. | 05-15-2014 |
20140133441 | METHOD AND APPARATUS FOR TRANSMITTING CONTROL SIGNALING - A method and apparatus for transmitting control signaling includes: transmitting indication information on a transmission location of control signaling by a base station to a mobile station configured as an open-loop MIMO transmission mode; transmitting the control signaling by the base station in a data region by using the open-loop MIMO transmission mode or a transmit diversity transmission mode if the location for transmitting the control signaling indicated by the information on a transmission location of control signaling is located at the data region. Whereby the number of mobile stations to be scheduled in a cell is increased and results in the scheduling information to be transmitted in a subframe increased, the control signaling of a mobile station configured as an open-loop MIMO transmission mode is placed in a data region for transmission, thereby increasing the number of UE scheduled, increasing the throughput of the system. | 05-15-2014 |
20140133448 | METHOD AND APPARATUS FOR UPLINK POWER CONTROL - A method and apparatus for uplink power control, including: transmitting, by user equipment, a sounding reference signal (SRS) to a network side according to a received triggering signal; receiving, by the user equipment, a path loss compensation value calculated based on the SRS and transmitted by the network side; estimating, by the user equipment, a path loss value according to a received cell-specific reference signal (CRS); and performing, by the user equipment, power compensation according to the path loss compensation and path loss values. On the basis of the original uplink power control performed according to the path loss estimated based on the downlink CRSs, the network side estimates the path loss compensation value of the UE by triggering the RRH UE to transmit aperiodic SRSs, and informs the UE in a semi-static manner, compensating for the inaccuracy of estimation of path loss and ensuring the efficiency of power control. | 05-15-2014 |
20140135030 | LOAD COMPENSATION METHOD, MEASURING METHOD FOR LOAD ESTIMATION, BASE STATION AND USER EQUIPMENT - Embodiments of the present invention provide a load compensation method, a measuring method for load estimation, a base station and user equipment. The load compensation method includes: obtaining, by a base station of compensation cell, an estimated value of a resource needed by user equipment of energy-saving cell in the compensation cell according to signal quality of the compensation cell measured by the user equipment of the energy-saving cell; determining whether to compensate for the energy-saving cell according to the estimated value of the resource needed by user equipment of the energy-saving cell in the compensation cell; and increasing power of related resources to compensate for the energy-saving cell after it is determined to compensate for the energy-saving cell. With the embodiments of the present invention, the resources of the compensation cell occupied by the user equipment of the energy-saving cell may be reflected, thereby improving accuracy of load compensation. | 05-15-2014 |
20140146680 | POWER CONTROL METHOD, BASE STATION AND TERMINAL EQUIPMENT - A power control including: determining by a macro base station a dormant cell to be activated based on a measurement report; and transmitting an activation request to the base station of the dormant cell to be activated, the activation request including a cell ID of the dormant cell to be activated and a reduction value of the power used by the dormant cell after being activated relative to the maximum power level or an initial power level, a power increasing level and time duration of power or predetermined first time. The base station of the dormant cell transmits the signal at power reduced by the reduction value with respect to the maximum power after the dormant cell is activated or transmits the signal at the power that is increased step by step. | 05-29-2014 |
20140153432 | METHOD FOR REPORTING CHANNEL STATE INFORMATION, USER EQUIPMENT AND BASE STATION - Embodiments of the present invention provide a method for reporting channel state information, user equipment and base station. The method includes: receiving, by user equipment, an indication signaling transmitted by a base station, the indication signaling comprising identification information for triggering report of aperiodic channel state information; determining a measurement set of the report of the aperiodic channel state information according to the identification information; and reporting corresponding channel state information to the base station according to the measurement set. With the embodiments of the present invention, the needed aperiodic CSI may be quickly fed back, thereby achieving relatively flexible aperiodic report. | 06-05-2014 |
20140164002 | JOINT DECODING APPARATUS AND METHOD, NECESSITY JUDGING METHOD AND APPARATUS, AND RECEIVER - A Joint Source-Channel Decoding (JSCD) apparatus, method, necessity judging method, and a receiver includes: a source coding rate change judging unit configured to judge whether a source coding rate of the current frame is the same as the previous frame; a source coding rate eligibility judging unit configured to judge whether the source coding rate of the current frame is less than a predetermined source coding rate threshold; a current frame SIR eligibility judging unit configured to judge whether an SIR of the current frame is lower than a predetermined SIR threshold, a necessity result determining unit configured to determine that a JSCD is necessary, when the source coding rate of the current frame is the same as the previous frame, the source coding rate of the current frame is less than the source coding rate threshold, and the SIR of the current frame is lower than the SIR threshold. | 06-12-2014 |
20140185565 | SCHEDULING ALLOCATION METHOD AND APPARATUS IN COORDINATED MULTIPLE POINTS SYSTEM - A scheduling allocation method that includes: receiving demanded resource parameters and available resource parameters transmitted by a plurality of cell base stations or transmission points, each of the demanded resource parameters reflecting a service load of each cell base station or transmission point, and each of the available resource parameters reflecting status of available resources of each cell base station or transmission point; sorting priorities of the plurality of cell base stations or transmission points according to the received demanded resource parameters and available resource parameters; and determining scheduling modes of the plurality of cell base stations or transmission points according to the sorted priorities. | 07-03-2014 |
20140185699 | DATA TRANSMISSION METHOD AND SYSTEM, TRANSMITTER, AND RECEIVER - A data transmission method and system, transmitter and receiver. The method includes: mapping, by a transmitter, a plurality of data streams to a plurality of antennas of the transmitter by using precoding matrices and transmitting the plurality of data streams to a receiver via the plurality of antennas, wherein the transmitter selects the precoding matrices by taking a resource block as a granularity. With the embodiments of the present invention, the transmitter may transmit data streams to the receiver by using the precoding matrices W, and selects the precoding matrices W by taking a resource block (RB) as a granularity, so as to support DM-RS demodulation, and the receiver is not needed to perform PMI feedback, which is also applicable to a scenario where user feedback is not supported or PMI feedback is inaccurate, thereby achieving open-loop spatial multiplexing CoMP transmission. | 07-03-2014 |
20140204790 | MEASUREMENT METHOD FOR CHANNEL STATE INFORMATION, USER EQUIPMENT AND BASE STATION - Embodiments of the present invention provide a measurement method for channel state information, user equipment and a base station. The measurement method includes: selecting one or more coordinated transmission points for coordinated multipoint transmission by the base station for user equipment; and independently configuring a measurement subset used for channel state information feedback for each base station and each coordinated transmission point, so that the user equipment performs measurement according to the measurement subset. With the embodiments of the present invention, channel state information feedback configuration is performed to each cell or transmission point participated in coordination, and a unified structural design for feedback information may be used, so that channel feedback information for multiple transmission points or multiple cells can serve for not only transmission of a single cell, but also transmission of multiple cells. | 07-24-2014 |
20140204830 | METHOD FOR CARRYING OUT MULTIMEDIA BROADCAST MULTICAST SERVICE, HOME BASE STATION AND USER EQUIPMENT - A method for carrying out a multimedia broadcast multicast service, a home base station, a network management system of the home base station and user equipment. The method includes: acquiring, by a home network side entity, multimedia broadcast multicast service (MBMS) configuration information of a macro cell, the MBMS configuration information of the macro cell comprising first MBMS configuration information, the first MBMS configuration information comprising position information of a multimedia broadcast multicast single frequency network (MBSFN) subframe in the macro cell; and configuring a subframe of a closed subscriber group (CSG) cell at a position which is the same as that of the MBSFN subframe of the macro cell into a first almost blank subframe (ABS) or into a first ABS and MBSFN subframe, according to the acquired first MBMS configuration information, so that the user equipment (UE) is capable of receiving the MBMS of the macro cell. | 07-24-2014 |
20140211712 | METHOD FOR TRANSMITTING DOWNLINK CONTROL INFORMATION, METHOD FOR BLIND DETECTION, BASE STATION AND TERMINAL EQUIPMENT - A method for transmitting Downlink Control Information (DCI), a method for blind detection, a base station and terminal equipment, including: a base station generates a DCI, such that a bit length of the DCI of terminal equipment configured with a carrier segment is equal to that of a DCI of the same format of terminal equipment not configured with a carrier segment; the base station transmits the DCI for the terminal equipment configured with the carrier segment in a common search region of a control channel. Or the base station transmits user-specific DCI in a user-specific search region for the terminal equipment configured with the carrier segment, while does not transmit corresponding user-specific DCI in the common search region of the control channel. The bit length of the common search region will not be increased, avoiding the increase of the number of blind detections at the terminal equipment. | 07-31-2014 |
20140211751 | METHOD FOR TRANSMITTING AN ENHANCED CONTROL SIGNALING, BASE STATION AND USER EQUIPMENT - A method for transmitting an enhanced control signaling, a base station and user equipment (UE) are applicable to a coordinated multipoint transmission mode. The method including: transmitting, by a pico base station, an enhanced physical control format indication signaling (E-PCFICH) to UE configured with the mode, the E-PCFICH including control signaling length, wherein the control signaling length is of a pico cell, or a maximum value of control signaling lengths of a macro cell and a pico cell. With the embodiments of the invention, the E-PCFICH including control signaling length is adopted in a pico cell, so that the UE can determine a starting position of the data area PDSCH of the pico cell according to the control signaling length, thereby solving the problem that the data area of the pico cell cannot be accurately determined under the CoMP mode, and ensuring that the UE correctly receives data. | 07-31-2014 |
20140247808 | METHOD AND APPARATUS FOR ENHANCING SYNCHRONIZATION IN A HETEROGENEOUS NETWORK - A method and apparatus for enhancing synchronization in a heterogeneous network, including transmitting an auxiliary synchronization signal by a base station in a pico cell, a transmission interval of the auxiliary synchronization signal being 10 ms or 5 ms, and the auxiliary synchronization signal being located in a 0 | 09-04-2014 |
20140269579 | METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION POWER OF A PRACH - Controlling transmission power of a PRACH and apparatus, including: receiving, by a source RP, relevant parameters of a target RP for receiving a PRACH transmitted by the target RP; transmitting, by the source RP, the relevant parameters of the target RP for receiving the PRACH to CoMP UE; transmitting, by the source RP, an index of a pathloss value between the CoMP UE and the target RP to the CoMP UE, so that the CoMP UE determines the transmission power of the PRACH according to target reception power in the relevant parameters of the target RP for receiving the PRACH and the pathloss value. The CoMP UE may transmit the PRACH to the target RP with correct transmission power, obtain TA value between the CoMP UE and the target RP, and establish uplink synchronization with the target RP, thereby accessing to the target RP. | 09-18-2014 |
20140293922 | METHOD AND APPARATUS FOR RESOURCE MAPPING OF A PHYSICAL DOWNLINK CONTROL CHANNEL - A method for resource mapping of a physical downlink control channel (PDCCH), including: determining the number of resource sub-blocks to which a predefined number of enhanced control channel elements (eCCEs) correspond, according to the size of a resource sub-block in one resource block (RB); determining the number of RBs onto which the predefined number of eCCEs are needed to be mapped, according to the number of resource sub-blocks to which the predefined number of eCCEs correspond; and mapping eCCEs within the PDCCH to RBs according to the number of RBs onto which the predefined number of eCCEs are needed to be mapped; wherein locations of resource sub-blocks to which the eCCEs or the predefined number of eCCEs within the PDCCH correspond are different in each of the RBs. | 10-02-2014 |
20140293924 | MAPPING METHOD AND APPARATUS FOR A SEARCH SPACE OF A PHYSICAL DOWNLINK CONTROL CHANNEL - Embodiments of the present invention provide a mapping method and apparatus for a search space of a physical downlink control channel. The method includes: determining a search space allocated to the PDCCH according to a resource allocation scheme; and mapping each of candidates of the PDCCH to a logic time frequency resource of the search space according to a predefined interval. With the method and apparatus of the embodiments of the present invention, a frequency selective scheduling gain is obtained by mapping different candidates onto discrete time frequency resources, or a frequency diversity gain is obtained by mapping one candidate onto discrete time frequency resources, thereby improving the performance of the PDCCH. | 10-02-2014 |
20140301315 | CONTROL METHOD AND SYSTEM FOR AUTONOMOUS DENIAL, ENB AND USER EQUIPMENT - Embodiments of the present invention provide a control method and a system for autonomous denial, an eNB and user equipment. The control method includes: transmitting, by an eNB to user equipment, autonomous denial configuration information, the autonomous denial configuration information being set according to uplink data of the user equipment. With the embodiments of the present invention, uplink data may be autonomously denied more accurately, and performance of the system will not be degraded. | 10-09-2014 |
20140301358 | Code Generating Apparatus, Reference Signal Generating Apparatus, and Methods Thereof - A code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator includes generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively. | 10-09-2014 |
20140301430 | Code Generating Apparatus, Reference Signal Generating Apparatus, and Methods Thereof - A code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator includes generating a non-correlation sequence for RS of a first resource block; spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for RS to be mapped to a second frequency resource of the first resource block, by using a second group of Codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for RS transmission in the first resource block, and the first and second groups of Codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively. | 10-09-2014 |
20140307680 | METHOD FOR LINKAGE RESOURCE ASSIGNMENT, UE, METHOD FOR MULTIPLEXING TRANSMISSION AND ENB - Embodiments of the present application provide a method for linkage resource assignment, UE, a method for multiplexing transmission and an eNB. The method for linkage resource assignment includes: acquiring, by UE, a lowest PRB index assigned to a PUSCH, cyclic shift information of an uplink DM-RS, and an initial position of a physical resource occupied by uplink grant signaling; and calculating group identification and sequence identification of a PHICH or an ePHICH, according to the lowest PRB index of the PUSCH, the cyclic shift information of the uplink DM-RS, and the initial position of physical resource occupied by uplink grant signaling, so as to determine whether the PHICH or the ePHICH is assigned to the UE. With the embodiments of the present application, a collision of a PHICH or an ePHICH may be reduced. | 10-16-2014 |
20140321345 | SIGNALING INDICATION METHOD FOR DOWNLINK POWER ALLOCATION, ENB AND USER EQUIPMENT - Embodiments of the present application provide a signaling indication method for downlink power allocation. The signaling indication method includes: transmitting, by an eNB to UE, ratio information of EPRE for indicating power allocation of the downlink channel and timing indication information of the ratio information, such that the UE performs demodulation or measurement on the downlink channel according to the ratio information and the timing indication information. With the embodiments of the present application, the UE may correctly demodulate phase and amplitude jointly modulated data, or accurately perform channel state measurement, when power used by a physical channel downlink carrying a unicast service in an ABS or a low-power subframe varies dynamically. | 10-30-2014 |
20140334333 | METHOD AND APPARATUS FOR DETERMINING DOWNLINK COORDINATED MULTIPOINT MEASUREMENT SET - A method and apparatus for determining a downlink coordinated multipoint measurement set. The method includes: receiving reference signal receiving power of a channel state information reference signal transmitted by each point in an RRM measurement set reported by UE; wherein the reference signal receiving power of each point in the RRM measurement set is measured by the UE based on more than one groups of preconfigured channel state information reference signal resources; and determining the downlink coordinated multipoint measurement set according to the reference signal receiving power reported by the UE. With the method, the UE needs not to measure RSRP of all the points for transmitting signals, thereby avoiding waste of resources, and solving problems in the prior art. | 11-13-2014 |
20140369252 | METHOD FOR TRANSMITTING MEASUREMENT REPORT AND USER EQUIPMENT - Embodiments of the present application provide a method for transmitting a measurement report and user equipment. The method for transmitting a measurement report including: delaying or not transmitting, by user equipment, a measurement report of a first frequency when performing handover; wherein the first frequency does not provide a multimedia broadcast multicast service that the user equipment is interested in. With the embodiments of the present application, a measurement report of a frequency providing an MBMS in which user equipment is interested may be transmitted first, thereby well guaranteeing continuity of the MBMS. | 12-18-2014 |
20150017988 | CONFIGURATION METHOD FOR COEXISTENT INTERFERENCE FREQUENCY SET, BASE STATION AND UE - Embodiments of the present disclosure provide a configuration method for a coexistent interference frequency set, a base station and UE. The method includes: receiving, by a target base station, a first coexistent interference frequency set configured for UE, transmitted by a source base station, when the UE is handed over from the source base station to the target base station; and comparing the first coexistent interference frequency set with a preset second coexistent interference frequency set by the target base station, and not reconfiguring a coexistent interference frequency set for the UE by the target base station if a result of the comparison is that they are identical. With the embodiments of the present disclosure, configuration of coexistent interference frequency by the base station may be reduced, waste of system resources is lowered, and performance of the system is improved. | 01-15-2015 |
20150036530 | MEASUREMENT METHOD FOR REFERENCE SIGNAL, BASE STATION AND UE - Embodiments of the present disclosure provide a measurement method for a reference signal, a base station and UE. The measurement method includes: transmitting, by a base station to UE, indication information indicating whether to process the reference signal with respect to interference cancellation, when configuring the UE with radio resource management measurement; and receiving, by the base station, a result of the radio resource management measurement transmitted by the UE. With the embodiments of the present disclosure, the base station side is enabled to learn whether the UE side performs processing of interference cancellation, thereby accurately obtaining a measurement result of the reference signal. | 02-05-2015 |
20150038150 | METHOD AND APPARATUS FOR NEGOTIATING MOBILITY SETTINGS - A method and apparatus for negotiating mobility settings. In transmitting a request message for mobility change by a transmitting eNB for negotiating mobility settings to a receiving eNB, identification of handover triggers (one or more) needing to negotiate mobility settings is added; and after receiving the request message for mobility change, the receiving eNB may determine which handover trigger or handover triggers need to negotiate mobility settings according to the identification of the handover triggers, determine whether the process of negotiating mobility settings of the handover triggers can be completed (that is, whether the parameter settings of the one or more handover triggers can be accepted) according to information on parameter settings included in the request message for mobility change, and feed corresponding acknowledgement message of mobility change or failure message of mobility change back to the transmitting eNB, thereby achieving inter-eNB load balance and optimization of handover performance. | 02-05-2015 |
20150085750 | METHOD FOR FEEDING BACK CHANNEL STATE INFORMATION, UE AND SYSTEM - A method for feeding back channel state information, UE and system. The method is applicable to a CoMP transmission system and includes: feeding back channel state information to a network side by way of concatenating more than one pieces of channel state indication information in a bit domain. In this way, a method for feeding back multiple pieces of CSI in the CoMP transmission may be provided. Furthermore, RI information and CQI/PMI information in the CSI may be respectively encoded and mapped, so as to ensure reliable transmission of the RI information and CQI/PMI information. | 03-26-2015 |
20150085808 | METHOD AND APPARATUS FOR PERFORMING CARRIER MANAGEMENT IN CARRIER AGGREGATION SYSTEM - A carrier aggregation system, includes transmitting a first signaling to configure one additional carrier to a user equipment (UE) at which the additional carriers are deactivated, to configure a timer to each additional carrier for the UE by which the carrier is deactivated after the corresponding timer expiry; transmitting a second signaling that carries an activation indication to the UE to activate one deactivated additional carrier in the configured carriers for the UE; activating at least one deactivated additional carrier, starting the timer, controlling the UE to start Physical Downlink Control Channel (PDCCH) monitoring and Physical Downlink Shared Channel (PDSCH) receiving on the activated additional carrier; transmitting PDCCH on the activated additional carrier for the UE, by which the corresponding timer being restarted; deactivating the activated carrier after the corresponding timer expiry, controlling the UE to stop the PDCCH monitoring and the PDSCH receiving on the deactivated additional carrier. | 03-26-2015 |