Patent application number | Description | Published |
20090168798 | TIME-DIVISION-BASED CHANNEL COLLISION COLLABORATION IN A DYNAMIC FREQUENCY HOPPING WIRELESS REGIONAL AREA NETWORK (WRAN) - A method of and system for time-division-based channel collision collaboration in a wireless communication system including at least two Wireless Regional Area Networks (WRANs) with overlapping service areas that employ dynamic frequency hopping is provided. The method includes performing, by at least one Consumer Premise Equipment (CPE) located in an overlapping portion of service areas of at least two WRANs, spectrum sensing and feeding idle channel information back to respective Base Stations (BSs) of the at least two WRANs, broadcasting, by each of the at least two WRANs, a pre-occupation announcement message for a qualified idle channel, and determining, by a WRAN with the highest priority of the at least two WRANs, a time resource allocation for WRANs in a channel collision state of the at least two WRANs. The method addresses problems, such as a large delay and impaired wireless access due to an absence of an idle channel for adjacent WRANs, may be avoided, while the WRANs may maintain their QoSs. Therefore, transmission power of a WRAN during non-operation period may be conserved. | 07-02-2009 |
20090307506 | MOBILE PORTABLE DEVICE - The present invention provides a mobile portable device comprising a network communication module, a power-on circuit, a switching power supply, a system power supply and external battery and a calculation unit, wherein the system power supply and external battery constantly supply power to the network communication module by using an external AC power supply or the power of the battery, when the mobile portable device is in a power-off/sleep state, and when the power-on circuit detects that the network communication module has received information from a network, it activates the switching power supply to supply power to the mobile portable device and thus put the mobile portable device into an operating state. By supplying power to the network communication module in the power-off/sleep state of the notebook computer, the computer can be in the network communication state at any time and thus will not miss any information transmitted over the network. | 12-10-2009 |
20090323573 | REMOTE WAKE-UP SYSTEM, WWAN MODULE AND TERMINAL - Disclosed are a remote wake up system based on a WWAN module, a WWAN module and a terminal. The system includes a terminal; a WWAN module adapted to receive and/or send information in a wireless manner; and a security control module adapted to perform a security validation on the call information received by the WWAN module when the terminal is in a sleep state, and the security control module is further adapted to generate a wake-up signal and sending the wake-up signal to the terminal in order to wake up it, in the case of passing the security validation. | 12-31-2009 |
20100020704 | Method, Apparatus And Computer Readable Medium For Obtaining Efficient Downlink Power Transmission - The invention relates to a method and an arrangement for obtaining efficient radio resource utilization in a communication network comprising a communication network entity transmitting data on a downlink channel over a radio interface to one or more user equipments, each of which is transmitting data on an uplink channel to said communication network entity over said radio interface. The communication network entity receives transmit power control (TPC) commands on said uplink channel and, further, monitors a channel quality indicator (CQI) on said uplink channel from said user equipment in order to obtain channel quality indicator measurements. If there is a channel quality indicator available, the communication network entity calculates a required downlink power. Otherwise, the communication network entity decodes said received transmit power control commands. Thereafter said transmission power is adjusted either based on the calculated downlink power or based on the decoded transmit power control commands in order to obtain efficient radio resource utilization. | 01-28-2010 |
20100035646 | TRANSMISSION POWER CONTROL IN HSPDA - Method, mobile station, base station and computer program product for transmission power control in a wireless communication comprising the adjustment of the retransmission power for at least a part of an unsuccessfully received data block at a receiver according to the received information indicative of the channel qualities after an unsuccessful reception of the transmitted data block and prior to a retransmission of at least a part of the unsuccessfully transmitted data block and according to a required channel quality necessary for reaching a target BLEP (Block-Error Probability). | 02-11-2010 |
20100067419 | METHOD AND ARRANGEMENT FOR EFFICIENTLY UTILIZING RADIO RESOURCES IN A COMMUNICATION SYSTEM - The invention relates to a method and an arrangement of efficiently utilizing radio resources in a communication network, comprising a communication network node communicating with one or more user equipments over a radio interface, wherein at least two communication services are provided on said radio interface, each having a certain amount of power allocated in an interactively way. The interaction between said at least two communication services is minimized in order to obtain an enhanced power utilization. | 03-18-2010 |
20100067460 | METHOD FOR REDUCING DELAY IN A COMMUNICATION SYSTEM EMPLOYING HARQ - The invention relates to a method and an arrangement for reducing transmission delay on a radio interface in a communication network, comprising a communication network node ( | 03-18-2010 |
20100067563 | METHOD AND SYSTEM OF COMMUNICATIONS - A communications estimation, in radio communications systems, particularly in CDMA type of systems, of signal to interference ratio, signal to noise ratio and signal to interference and noise ratio, includes one or more channel specific parameters in addition to one or more parameters related to received signal, noise or interference. | 03-18-2010 |
20100135169 | Channel Quality Reporting Method and Arrangement in a Telecommunication System - When a high SIR can be achieved for downlink data transmission, for example in a MIMO system, or when higher order modulation, such as 64 QAM, can be used, it is desired to measure the instantaneous downlink channel quality indicator (CQI), and report the measured CQI to the network using the same number of bits as when a lower SIR can be achieved. In order to do this, a true CQI is derived based upon at least one network controlled parameter and a measured channel quality parameter; and the true CQI value is scaled to a new CQI value such that the new CQI will fall within a specified range of CQI values; so that the new CQI achieved by scaling the derived CQI value can be reported with every CQI value over the entire reporting range requiring the same number of bits. | 06-03-2010 |
20100208642 | INTELLIGENT ASSISTED TRANSMISSION METHOD FOR MULTICAST BROADCAST SERVICE - An intelligent assisted transmission method is provided. In the method, a Multicast and Broadcast Service (MCBCS) Server transmits Multicast Broadcast Service (MBS) data to a base station in an MBS area. The base station transmits the MBS data to a user equipment. If the user equipment cannot correctly receive the MBS data, it returns a Not Acknowledgement (NACK) message to the base station. The base station transmits an intelligent assisted transmission prompt to the MCBCS Server. The MCBCS Server transmits an intelligent assisted transmission request to adjacent base stations of the base station. When the intelligent assisted transmission request is received, the adjacent base stations return an intelligent assisted transmission response. The MCBCS Server transmits the MBS data to the adjacent base stations, and the adjacent base stations transmit the MBS data to the user equipment. | 08-19-2010 |
20100234058 | Channel Quality Prediction in HSDPA Systems - A method and arrangement in a radio communication network for predicting channel quality on a downlink channel. A radio base station (RBS) transmits data on the downlink channel to one or more user equipments (UEs), each of which transmits a channel quality indicator to the RBS on an uplink channel. The RBS derives a needed downlink transmission power from the received channel quality indicator, and predicts a channel quality for a next downlink transmission based on the received channel quality indicator and the derived downlink transmission power. | 09-16-2010 |
20100265994 | RAKE or G-RAKE Receiver Structure for Downlink Transmit Diversity Signals - In a RAKE or GRAKE receiver a combined set of weight factors are used for a first and a second symbol period. The output from the first and second symbol period is fed to a single mutual receiver. | 10-21-2010 |
20100290381 | METHOD AND ARRANGEMENT FOR SAVING RADIO RESOURCES BY DETERMINING POWER OFFSET VALUES IN THE USER EQUIPMENT - The present invention relates to an arrangement and a method in a user equipment of saving radio resources in a communication network system comprising a communication network node ( | 11-18-2010 |
20100317361 | SIGNALLING GAIN FACTORS IN A COMMUNICATION NETWORK SYSTEM - The invention relates to methods, a user equipment and a communication network entity for optimizing the radio resource utilization in a communication network system comprising a network side and a user equipment side between which data is transmitted on uplink ( | 12-16-2010 |
20110206169 | Methods and Apparatus for Enhancing Channel Estimation - A noisy frequency-domain channel estimate enhancer includes an over-sampler configured to transform the noisy frequency-domain channel estimate into a time-domain channel estimate that is virtually over-sampled by an integer factor m. The over-sampler is connected to a de-interleaver configured to divide the time-domain channel estimate into m de-interleaved sub-vectors. The de-interleaver is connected to a suppressor configured to suppress noisy taps from each de-interleaved sub-vectors to form m noise suppressed sub-vectors. The suppressor is connected to a selector configured to select a noise suppressed sub-vector associated with a highest signal-to-noise ratio. The selector is connected to a discrete Fourier transformer configured to transform the selected noise suppressed sub-vector into a noise suppressed preliminary frequency-domain channel estimate. The discrete Fourier transformer is connected to a phase-shifter configured to phase-adjust the taps of the noise suppressed preliminary frequency-domain channel estimate to form an enhanced frequency-domain channel estimate. | 08-25-2011 |
20110211655 | METHOD FOR TRANSMITTING SIGNALS IN MULTI-CARRIER RADIO TRANSMISSION SYSTEM - A method for transmitting signals in a multi-carrier radio transmission system is provided, wherein a transmission block is composed of N consecutive OFDM symbols in a time domain and M consecutive physical sub-carriers in a frequency domain, where N is an integer and not less than 1, and M is an integer and not less than 1. The method comprises following steps: a transmitting end encodes and interleaves data; at least one pilot stream exists at the transmitting end, only one pilot signal is transmitted in frequency area for transmission of the pilot signal, and at most one pilot signal is transmitted in each group of OFDM symbols; the transmitting end performs IFFT operation on the encoded and interleaved data and the pilot signal; the transmitting end transmits out the data and the pilot signal through antennae after inserting a preamble signal. | 09-01-2011 |
20110292843 | Method and Arrangement in a Wireless Communication Network - Method and arrangement in a relay node, for selecting communication mode. The relay node is configured to communicate with a base station via a donor antenna over a first link and to communicate with a user equipment via a coverage antenna over a second link. The method comprises obtaining an isolation value, based on the radio wave isolation between the relay donor antenna and the relay coverage antenna. The obtained isolation value is compared with an isolation threshold level value. The relay node is configured to communicate in full duplex mode if the obtained isolation value exceeds the isolation threshold level value, otherwise in half duplex mode. Information concerning the configured duplex mode of the relay node is transmitted to the base station. | 12-01-2011 |
20120009941 | Method and apparatus for providing a location based service - An application method of a Location Based Service-zone (LBS-zone) is capable of implementing instruction and measurement for the LBS-zone. The method includes sending, by a serving Base Station (BS) located by a Mobile Station (MS), an instruction message indicating an LBS-zone exists, to the MS. The method also includes, when the LBS-zone exists, and the MS measures a reference signal sent by a neighbor BS in the LBS-zone, receiving, by the MS, the reference signal in the LBS-zone, which is sent by the neighbor BS and used for locating the MS, according to the instruction message. The method also includes measuring, by the MS, the reference signal, and sending a measurement result to the serving BS. Using embodiments of the invention, the MS may be enabled to obtain information of the LBS-zone accurately, so as to implement normal measurement for the LBS-zone and measurement result feedback. | 01-12-2012 |
20120039307 | METHOD AND APPARATUS FOR PERFORMING CARRIER SWITCHING IN A WIRELESS COMMUNICATION SYSTEM USING MULTI-CARRIERS - A method and an apparatus for performing carrier switching in a wireless communication system using multi-carriers are provided. According to the method, a Mobile Station (MS) transmits a message including information on a time slot occupying status to a Base Station (BS), if a message for instructing to report the information on the time slot occupying status, is received from the BS, receives, from the BS, first information on at least one time slot scheduled by using the information on the time slot occupying status, identifies at least one time slot using the first information, and performs the carrier switching in the identified at least one time slot. | 02-16-2012 |
20120195258 | NETWORK REENTRY METHOD AND APPARATUS IN A MOBILE COMMUNICATION SYSTEM - Provided is a network re-entry method and apparatus in a mobile communication system. The network re-entry method includes sending, by a group delegate Mobile Station (MS) among MSs of a group, a ranging code based on a group Identifier (ID) to a Base Station (BS) and receiving, by the MSs, a Ranging-Response (RNG-RSP) message comprising a ranging status for the group from the BS. | 08-02-2012 |
20120250608 | METHOD AND ARRANGEMENT IN A MOBILE COMMUNICATIONS NETWORK - A method of operating a network node comprising one or more transmit antennas that are associated with a plurality of antenna ports includes transmitting a first user-equipment—(UE-)specific reference signal on a first antenna port and reusing the first UE-specific reference signal to transmit a second UE-specific reference signal on one of the first antenna port and a second antenna port. The second UE-specific reference signal is orthogonal to the first UE-specific reference signal. | 10-04-2012 |
20120263254 | METHOD FOR TRANSMITTING PILOT SIGNAL IN MULTI-CARRIER WIRELESS TRANSMISSION SYSTEM - The present invention provides a method for transmitting pilots in a multi-carrier wireless transmission system. A wireless time-frequency transmission block is composed of N consecutive OFDM symbols in time domain and M consecutive physical sub-carriers in frequency domain, N and M are integers those are greater than or equal to 1. The method includes: partitioning the wireless time-frequency transmission block into several areas, and determining the position of pilots, of which the total number is a preset number, according to the time-frequency domain balancing principle of pilots of various antennas in various areas; inserting pilots at the pilot positions of each antenna corresponding to the antenna for transmission. In accordance with the present invention, the simultaneous transmission of multiple antennas is supported in a wireless time-frequency transmission block of a multi-carrier wireless transmission system. | 10-18-2012 |
20120281649 | NETWORK ACCESS METHOD AND APPARATUS - A network access method and an apparatus are provided. The Machine to Machine (M2M) terminal in one M2M terminal group determines an access resource according to an identifier of the M2M terminal group which the M2M terminal is a member of, and The M2M terminal of the M2M terminal group uses the determined access resource to conduct network access on behalf of the M2M terminal group. The method and apparatus can ensure that numerous M2M terminals can successfully access the network at the same time. | 11-08-2012 |
20120284406 | NETWORK ACCESSING METHOD - A network accessing method includes selecting a group representative dynamically from each machine to machine (M2M) terminal group, wherein terminals in the M2M terminal group not selected as the group representative serve as group members. The method also includes requesting, by the group representative, network access from a base station, and serving, as a group member automatically after entering an idle state or entering another cell. This enables multiple M2M terminals to access a network at the same time while avoiding network access congestion. | 11-08-2012 |
20120289273 | METHOD AND APPARATUS FOR GENERATING/PARSING RESOURCE ALLOCATION INDICATION MESSAGE - A method, a transmitter and a receiver for generating a resource allocation indication message are provided. The method includes, if M serving zones provide one of at least two service types, mapping each of one of N and N−1 resource units to a resource mapping identity represented by one bit, and generating the resource allocation indication message using at least one resource mapping identity, wherein the resource allocation indication message indicates the allocation of N resource units numbered for M serving zones, wherein the M is an integer equal to or larger than 1, and wherein the N is an integer equal to or larger than M. | 11-15-2012 |
20130039389 | METHOD AND ARRANGEMENT OF INCREASING IMPAIRMENT CO-VARIANCE MATRIX ESTIMATION ACCURACY - A method and arrangement of increasing impairment co-variance matrix R | 02-14-2013 |
20130058264 | Method and Arrangement in a Wireless Communication Network - Method and arrangement in a base station for sending control signals to a relay node. The relay node is configured to relay a data transmission from the base station to a user equipment in a subframe. The subframe comprises a first part, dedicated for downlink transmission, a second part dedicated for uplink transmission and a separating part situated between the first part and the second part. The base station, the relay node and the user equipment are comprised in a wireless communication network configured to operate according to the Time Division Duplex TDD principle. The method comprising transmitting data to the user equipment via the relay node in the first part of the subframe and transmitting the control signals, related to the transmitted data, to the relay node in the separating part between the first part and the second part of the subframe. Further, a method and arrangement in a relay node for receiving control signals from the base station are described. | 03-07-2013 |
20130115998 | Method and Device For Transmission Power Control - The embodiments herein relate to a method in a base station for adjusting transmission power in a communications network. The base station determines a first number m; P of historical transmit power control, TPC, commands based on a signal power and an interference level. The base station determines a second number 2k; n+Q of current TPC commands based on the first number m; P of historical TPC commands, or based on the first number m; P of historical TPC commands and a third number n−K of signal power and interference level pairs. The base station transmits a sequence of TPC commands comprising the first number of historical TPC commands and the second number of current TPC commands to the user equipment to adjust the user equipment's transmission power. | 05-09-2013 |
20130243069 | Covariance Estimation Method for Space-Frequency Domain Equalization and Apparatus and System Associated Therewith - The present invention relates to a method for generating impairment covariances for equalization in a receiver of a wireless communication system, as well as an covariance estimator, a receiver and a wireless communication system associated therewith, where the receiver is equipped with multiple antennas, and an impairment covariance matrix is used to calculate equalization weighting vector for signals transmitted by a transmitter, the method comprising the steps of: calculating a raw impairment covariance estimate between a first antenna and a second antenna of the multiple antennas on each of subcarriers allocated to the transmitter in frequency domain, transforming the raw impairment covariance estimates into time domain, masking the transformed impairment covariance estimates by a triangle window with a width defined by a maximum delay spread, determining a threshold based on the transformed impairment covariance estimates for the subcarriers and thresholding the masked impairment covariance estimates with the determined threshold, and transforming the thresholded impairment covariance estimates into frequency domain to form an impairment covariance matrix for calculating the equalization weighting vector. The impairment covariance estimation according to the present invention provides a the masked estimates performance improvement in equalization. | 09-19-2013 |
20130257655 | BEAMFORMING METHOD, APPARATUS FOR POLARIZED ANTENNA ARRAY AND RADIO COMMUNICATION DEVICE AND SYSTEM THEREOF - The invention discloses a beamforming method for polarized antenna array consisting of a plurality of antenna elements, applied to single layer beamforming or dual layer beamforming, which includes the steps: determining ( | 10-03-2013 |
20140105320 | METHOD AND ARRANGEMENT IN A MOBILE COMMUNICATIONS NETWORK - The present invention relates to an arrangement and method to design orthogonal UE-specific reference signals so that multiple UE-specific reference signals are feasible to support non-codebook-based multi-stream beamforming/precoding. This is achieved by re-using an existing UE-specific reference signal to obtain additional UE-specific reference signals being orthogonal to the existing UE reference signal. | 04-17-2014 |
20140119223 | NODE AND METHOD FOR TRANSMISSION MODE SWITCHING FOR DOWNLINK TRANSMISSION IN DOWNLINK CHANNEL - The present invention discloses a node for transmission mode switching for downlink transmission in a downlink channel ( | 05-01-2014 |
20140119237 | METHOD AND DEVICE FOR RELAY DEPLOYMENT IN A TDD COMMUNICATION NETWORK - The embodiments disclose a method and base station for relay deployment in a Time Division Duplex (TDD) communication network. The method comprises configuring a first base station to operate as a donor base station, and configuring a second base station to operate as a relay node, wherein a first sector of the second base station is configured as a User Equipment (UE) part of the relay node and a second sector of the second base station is configured as a base station part of the relay node. The method further comprises allocating wireless resources for backhaul link between the first base station and the second base station and for access link between the second base station and a UE. | 05-01-2014 |
20140192921 | TAE/FAE Compensation for Antenna Ports in CoMP Transmission - The present invention discloses a user equipment (UE) ( | 07-10-2014 |
20140211892 | Method and Arrangement in Wireless Communications System - The present invention relates to a receiving node, and to a related method of adjusting a frequency domain channel estimate in a receiving node of a wireless communication system using Orthogonal Frequency Division Multiplexing. The method comprises estimating ( | 07-31-2014 |
20140242934 | RADIO RECEIVER FOR POLARIZED ANTENNA SYSTEM - A hybrid combining method in a receiver is provided, and the method includes that wideband combining, e.g. using a maximum ratio combining (MRC) or an interference rejection combing (IRC) process, to combine signals distributed over a first plurality of subcarrier frequencies from antennas in the same polarization direction is performed, resulting in a combined signal for each polarization direction that is distributed over a smaller number of subcarrier frequencies, then a two-port narrowband IRC is done of these wideband combined signals for the two polarization directions, resulting in a diversity combined signal. | 08-28-2014 |
20140341119 | METHOD AND APPARATUS FOR RANK OVERRIDE - Methods and apparatuses for use in a MIMO transmission is provided. The method comprises: receiving a rank reported by a user equipment; determining a rank at least partly based on a transmission block size, TBS, index generated from link adaptation decision; and overriding the reported rank with the determined rank. By utilizing downlink link adaption decision, such as TBS | 11-20-2014 |