| China Academy of Telecommunications Technology Patent applications |
| Patent application number | Title | Published |
|---|
| 20120129561 | Method, Device and System for Transmitting Sounding Reference Signals - The embodiments of the present invention disclose a method, device and system for transmitting Sounding Reference Signals (SRSs). The method includes the following steps: a user equipment receives the special SRS sequence information for Coordinated Multi-Point Operation (CoMP) from a base station equipment, and the base station equipment corresponds to a cell in a CoMP SRS cluster ( | 05-24-2012 |
| 20120127932 | METHOD AND DEVICE FOR TRANSMITTING SOUNDING REFERENCE SIGNAL - A method and device for transmitting sounding reference signal (SRS). The method includes that: in at least two cells which need a user equipment (UE) to perform uplink channel sounding, the SRS resources for performing sounding to each cell are distributed to the UE; the UE is indicated to transmit the SRS on the distributed SRS resources. The method of the present invention can enable the UE to detect the channels of a plurality of cells and to be used in multipoint cooperative transmission, avoid the UE feeding back the channel information of a plurality of cells, and reduce the feedback overhead and improve the system performance. | 05-24-2012 |
| 20120122507 | Method And Device For Performing Space Coordination Among Cells - A method and a device for performing space coordination among cells are disclosed in the present invention, and the method includes that a base station in a serving cell acquires the channel information of a terminal; the base station in said serving cell performs pre-scheduling to said terminal, according to the acquired channel information of said terminal and the service requirement of said terminal; the base station in said serving cell transfers the pre-scheduling information to the base station in said coordinated cell, so that the base station in said coordinated cell performs coordinated scheduling/coordinated beam-forming with the base station in said serving cell together, according to said pre-scheduling information. With the solution of the present invention, the pre-scheduling information is transferred between base stations in various coordinated transmission cells, and the coordinated scheduling/beam-forming is performed according to the pre-scheduling information, thus, the coordinated scheduling/beam-forming is implemented with less amount of information exchange, and the spectrum efficiency of cell-edge terminal is improved. | 05-17-2012 |
| 20120122504 | ANTI-INTERFERENCE METHOD AND DEVICE IN COMMON-FREQUENCY NETWORKING MOBILE COMMUNICATION SYSTEM - The examples of the present invention disclose an anti-interference method and device in a common-frequency networking mobile communication system. The method includes: creating a candidate cell list according to probability that each adjacent cell of a current cell interferes with the current cell; selecting a selected cell list from the candidate cell list according to the probability; performing channel estimation for adjacent cells in the selected cell list, obtaining current signal power of each adjacent cell in the selected cell list according to a channel estimation result, and selecting a detected cell list from the selected cell list according to the signal power; and performing joint detection for adjacent cells in the detected cell list to eliminate interference of the adjacent cells in the detected cell list on the current cell. | 05-17-2012 |
| 20120122468 | Method and Device for Coordinated Scheduling - Disclosed in the present invention is a coordinated scheduling method which includes that: a base station establishes the correspondences between sub-bands and spatial information, and communicates the correspondences between sub-bands and spatial information with the base station of a cooperative cell ( | 05-17-2012 |
| 20120120906 | Configuration Method, System And Device For Uplink Channel - The embodiments of the present invention disclose a configuration method, system and device for an uplink channel. The method includes: The terminal achieve the information the network side device sending of carrying uplink transmission mode, and use the transmission mode transfer uplink signal; the terminal obtains the channel quality information according to the uplink transmission mode; the channel quality information the terminal obtained report to the network side device, as well as enables the network side device configures the uplink channel according to the channel quality information. The present invention performs the configuration of uplink channels in multicarrier transmission. | 05-17-2012 |
| 20120120810 | Measurement Method And Device For Wireless Network Communication System - A measurement method and device for wireless network communication system is disclosed. The method enables operators to use recording information to detect whether there is any problem in network and to perform some necessary optimizing work by enabling user equipment (UE) to automatically record some measurement logs and to periodically report them to the network. Because the information is automatically collected by the UE, the method effectively reduces the workload and cost devotion which is needed for network measurement by manual road measurement. The method enables the operators to obtain measurement information of geography areas that can not be obtained in ordinary road measurement because the UE is randomly distributed at any position in the network. | 05-17-2012 |
| 20120115423 | METHOD AND DEVICE FOR FREQUENCY DEVIATION PRE-CORRECTION - A method and device for frequency deviation pre-correction are provided. The method includes: estimating an uplink frequency deviation value of a terminal, and obtaining a historic value of the uplink frequency deviation pre-correction that has been used for the frequency deviation pre-correction of the terminal; according to the historic value of the uplink frequency deviation pre-correction, determining a current value of the uplink frequency deviation pre-correction of the terminal, the current value of the uplink frequency deviation pre-correction being closer to the uplink frequency deviation value than the historic value of the uplink frequency deviation pre-correction; by using the current value of the uplink frequency deviation pre-correction, pre-correcting the frequency deviation of the terminal, thereby the signal detection performance of the terminal can be effectively improved. | 05-10-2012 |
| 20120113972 | REMOTE RADIO DATA TRANSMISSION OVER ETHERNET - The invention discloses a method for transmitting data between a radio equipment (RE) and a radio equipment control (REC) of a radio base station via Ethernet. The method comprises in adaptive physical layer, adapting data frames complying with a remote radio protocol to Ethernet data frames that are suitable for transmission over Ethernet physical layer, and transmitting the adapted Ethernet data frames over the Ethernet physical layer. | 05-10-2012 |
| 20120113886 | Method, Apparatus And System For Configuring Multimedia Broadcast Multicast Service (MBMS) Control Information - The present invention discloses a method, an apparatus and a system for configuring Multimedia Broadcast Multicast Service (MBMS) control information, and the method includes: a network side apparatus broadcasts Multicast Control Channel (MCCH) configuration information to the terminal by Broadcast Control Channel (BCCH), and the MCCH configuration information is received by the terminal; the network side apparatus sends Multicast Broadcast Single Frequency Network (MBSFN) region configuration information to the terminal by the MCCH channel; the MBSFN region configuration information is received by the terminal according to the MCCH configuration information; the network side apparatus sends MBMS service data to the terminal by Multicast Traffic Channel (MTCH); the MBMS service data is received by the terminal according to the MBSFN region configuration information. In the present invention, the network side apparatus broadcasts MCCH configuration information to the terminal by the BCCH channel, and sends MBSFN region configuration information to the terminal by the MCCH channel respectively, thereby the information required to be transmitted in the BCCH channel and MCCH channel is configured in division, the capability requirements of the different air interfaces are satisfied, and the signaling overhead is saved. | 05-10-2012 |
| 20120113811 | METHOD, SYSTEM AND APPARATUS FOR NOTIFYING A UE OF MONITORED COMPONENT CARRIERS - The present invention provides a method for notifying a UE of monitored component carriers. The method comprises the following steps: an evolved Node B (eNB) sends an monitoring changing instruction and Component Carriers (CC) corresponding to the instruction to a UE with a Media Access Control (MAC) layer control command; according to the monitoring changing instruction and the corresponding CC, the UE activates or deactivates monitoring of the corresponding CC. The present invention allows the MAC PDU for instructing the UE to increase, decrease or change the monitored CC. Therefore, the configuration can be achieved in a simple and flexible manner and has higher reliability. | 05-10-2012 |
| 20120106521 | Method, Device and System for Determining Resource Locations - A method, device and system for determining resource locations are disclosed in the invention, wherein the method includes the following steps: a user equipment (UE) receiving the High-speed Shared Control Channel (HS-SCCH) from a network side equipment; according to said HS-SCCH, the said UE obtaining the time slot on which the High-speed Downlink Shared Channel (HS-DSCH) is located; according to the time slot on which said HS-DSCH is located, said UE determining the sub-frame on which said HS-DSCH is located; the UE receiving the HS-DSCH from said network-side device in the time-slots, which said HS-DSCH is located on, in the subframe which said HS-DSCH is located on. In the invention, the UE is enabled to determine the sub-frame on which the UE is located, according to the time-slots which are distributed by a base-station and the HS-DSCH is located on; while the HS-DSCH resource of TS | 05-03-2012 |
| 20120106390 | Method, System and Device for Reporting Uplink Pilot Interference - A method, a system and a device for reporting uplink pilot interference are provided, which are applied to time division duplex (TDD) system, and include: a base station measures uplink pilot time slot (UpPTS) interference based on a cell portion; the base station transmits the uplink pilot time slot interference, which carries the home cell portion ID corresponding to the uplink pilot time slot interference, to a radio network controller, therefore the radio network controller selects the transmitting position of the uplink pilot time slot according to the uplink pilot time slot interference and the home cell portion ID. The system realizes the reporting of the dedicated measurement in TDD system. | 05-03-2012 |
| 20120099505 | METHOD AND APPARATUS FOR NOTIFYING A SUBFRAME CONFIGURATION OF MULTICAST BROADCAST SINGLE FREQUENCY NETWORK - The present invention provides a method for notifying Multicast Broadcast Single Frequency Network (MBSFN) subframe configuration, which comprises the following steps: a first node sends its MBSFN subframe configuration, via an X2 interface, to a second node with which the first node is connected; the first node receives the MBSFN subframe configuration of the second node as a feedback. According to the invention, a serving cell can obtain the MBSFN subframe configurations of the neighboring cells and/or RNs, so that rational utilization of resources is achieved according to the configurations. Therefore, interference between cells is reduced, and system capacity and efficiency are improved. | 04-26-2012 |
| 20120099473 | Method and Device for Maintaining Long Term Evolution Base Station - A method and a device for maintaining a Long Term Evolution (LTE) base station are provided by the embodiments of the present invention. Depending on the LTE access network system and air interface characteristics, by making a few processing flow changes in such mode or method, a wireless communication link is established between a network maintenance device and a base station to implement the base station maintenance and data communication. Application of the technical solutions provided by the embodiments of the present invention can implement the base station maintenance and data communication by the wireless mode, reduce the cost of the network maintenance and prevent the destruction and influence of human factors on the operation and maintenance of the base station. | 04-26-2012 |
| 20120083310 | METHOD, DEVICE AND SYSTEM FOR REPORTING POWER HEADROM - A method, device and system for reporting power headroom are provided, and the method includes the following steps: a user equipment determines whether it triggers power headroom reporting (PHR) ( | 04-05-2012 |
| 20120069785 | SYNCHRONIZATION SCHEDULE METHOD, APPARATUS, AND SYSTEM - A synchronization schedule method, apparatus and system are provided. The method includes that base station equipment obtains a scheduling sequence of the multimedia broadcast multicast service (MBMS); the base station equipment makes the received synchronization data frame of MBMS perform ordering, and sends the synchronization data frame according to the ordering result. The method, apparatus and system make the received synchronization data frame of MBMS perform ordering according to the scheduling sequence, so as to ensure a plurality of MBMS perform synchronization schedule and synchronization multiplex between the base station equipments, and make the system obtain the statistical multiplex gain of MBMS service. | 03-22-2012 |
| 20120069778 | METHOD, DEVICE AND SYSTEM FOR BACKHAUL LINK COMMUNICATION IN TDD SYSTEM - The present invention provides a method, device and system for backhaul link communication in a TDD system. Wherein, the method includes: a base station allocating an uplink subframe for uplink transmitting of the backhaul link and a downlink subframe for downlink transmitting of the backhaul link, and notifying subframe allocating information to a relay node; and the base station communicating with the relay node by the uplink subframe and the to downlink subframe of the backhaul link. The solution allocates the uplink subframe and the downlink subframe of the backhaul link according to certain rules, performs related HARQ operation based on the allocated uplink subframe and downlink subframe, and ensures the availability and reliability of backhaul link communication. | 03-22-2012 |
| 20120063425 | Method and Apparatus for Uplink Synchronization Control - The present invention discloses a method for uplink synchronization control, wherein network side and a user equipment (UE) maintain a timing alignment timer (TAT) for the UE, and maintain an uplink transmission timing adjustment amount for uplink component carriers, and the method includes following steps: the network side measuring uplink component carriers of the UE, and obtaining an uplink transmission TA amount of the uplink component carriers; and before the TAT expires, the network side transmitting to the UE an adjustment command comprising information of the uplink transmission TA amount for at least one of the uplink component carriers of the UE. Also disclosed in the embodiments of the present invention are a method for uplink synchronization control at the UE side, and a base station and a UE for implementing the above methods. The solution of the present invention enables accurate adjustment of the uplink synchronization for each component carrier in a carrier aggregation mechanism. | 03-15-2012 |
| 20120039237 | METHOD, BASE STATION AND USER EQUIPMENT FOR TRANSMITTING AND ACQUIRING CONTROL INFORMATION IN BROADCAST MULTICAST SYSTEM - Various embodiments provide a method for transmitting control information in a broadcast multicast system, the method includes: broadcasting identifier information of N Multicast Broadcast Single Frequency Network (MBSFN) areas to which the current cell belongs through a system message wherein N is an integer with N>1; transmitting indication information of control information of the N MBSFN areas through a system message or a Radio Resource Control (RRC) message; and transmitting the control information of the N MBSFN areas respectively through a Multicast Control Channel (MCCH) of the current cell according to the indication information. Various embodiments can guarantee normal working of a UE when the UE is located in an area overlapped by multiple MBSFN areas. | 02-16-2012 |
| 20120026968 | METHOD AND APPARATUS FOR TRIGGERING SCHEDULING INFORMATION REPORT IN MULTI-CARRIER SYSTEM - The present invention provides methods and apparatus for triggering a SI report in a multi-carrier system, and the method includes: in a multi-carrier system, configuring a timer in UE corresponding to each carrier assigned to the UE, when a state of one of the carriers meets a preconfigured condition, starting or restarting the timer corresponding to the carrier, if the timer expires, triggering a SI report; or configuring a timer in UE corresponding to all carriers, when a state of one of the carriers meets a preconfigured condition, starting or restarting the second timer, if the second timer expires, triggering a SI report. The present invention provides technical solutions for triggering the SI report according to states of the carriers when there are multiple different carrier states, and thus the SI report is triggered in the multi-carrier system. | 02-02-2012 |
| 20120015669 | METHOD AND DEVICE FOR POSITIONING TERMINAL IN LONG TERM EVOLUTION SYSTEM - A method and an apparatus for terminal locating in long term evolution system are provided by the present invention, wherein, the method includes: calculating the propagation delay from the terminal to the base station to which the terminal belongs, according to the synchronization time advance of the terminal and the signal reception delay of the base station to which the terminal belongs ( | 01-19-2012 |
| 20120009952 | METHOD FOR PROCESSING CONFLICT OF COMMUNICATION SERVICE PROCEDURES AND ASSOCIATED DEVICES - A method for processing a conflict of communication service procedures and associated devices are provided, which are used to solve the problem that the user equipment (UE) receiving the circuit switching (CS) domain paging message conflicts with initiating the Non-Access Stratum (NAS) procedure by itself. Said method includes that: the UE receives a first paging message from the network side equipment; when the UE judges the first paging message is a CS domain paging message and that the UE itself is about to initiate an original Non-Access Stratum (NAS) procedure, the UE ignores the first paging message and initiates the original NAS procedure. | 01-12-2012 |
| 20110310786 | METHOD AND SYSTEM FOR COORDINATED TRANSMISSION AND A MOBILE TERMINAL AND NETWORK SIDE DEVICE - A method and a system for coordinated transmission, and a mobile terminal and network side device are provided. The method for coordinated transmission includes: reporting by the terminal of a signal measurement result; determining the coordinated transmission state of the terminal according to the signal measurement result; and providing transmission service for the terminal according to the determined transmission state. | 12-22-2011 |
| 20110294523 | PAGING METHOD AND DEVICE - A paging method and device are disclosed, and the technical solution includes: determining to page an user equipment (UE) by using international mobile subscriber identity (IMSI), and before the paging, judging whether tracking area identity list (TAI List) of the UE is stored, and if the judgment result is “no”, then paging the UE in the tracking area (TA) served by the base station connected with the local area. Adopting the technical solution enables to effectively resolve the problem of uncertainness of paging an UE in which TAs, wherein the problem exists in the existing technology, and happens when mobility management entity (MME) pages the UE by using IMSI during the process of network error recovery. | 12-01-2011 |
| 20110292860 | Method, System and Apparatus for Notifying Network Standard Time Information - A method, system and apparatus for notifying the Network Standard Time Information are provided by the present invention. The present invention is used to notify the Network Standard Time Information to a User Equipment (UE) in the Multimedia Broadcast Multicast Service (MBMS) mechanism, thus ensuring that the local time of the UE is consistent with the Network Standard Time Information of the network side, and enabling the UE to achieve the MBMS at a prescribed time. The said method comprises the following steps: the network side adds the Network Standard Time Information into the MBMS point-to-multipoint Control CHannel (MCCH) message; the network side notifies the Network Standard Time Information to the UE by transmitting the said MCCH message to the UE. | 12-01-2011 |
| 20110292846 | METHOD AND APPARATUS FOR DETERMINING THE CONFIGURATION MODE OF SPECIAL SUBFRAME AND THE USAGE MODE OF TIME-DOMAIN RESOURCE - A method and an apparatus for determining the configuration mode of special subframe of a cell are provided, and the method includes: receiving notification messages sent from adjacent cells, and the notification messages containing the information indicating the configuration modes of special subframes of the adjacent cells; determining the configuration modes of special subframes of the adjacent cells in accordance with the notification messages; among the possible configuration modes of special subframes of the current cell, selecting preferably a configuration mode of special subframe, which meets the interference requirement of the current cell and has less interference with the adjacent cells, as the current configuration mode of special subframe. The embodiments of the present invention also provide a method and an apparatus for determining the usage mode of the time-domain resource of a cell. | 12-01-2011 |
| 20110287774 | Method, System and Terminal for State Transition - The present invention relates to a method, system and UE for state transition. The method includes: after a transition from the CELL-PCH state to the CELL-FACH state, a UB receives the scheduling control channel continuously, or receives simultaneously the scheduling control channel according to the receiving time corresponding to the DRX mechanism when the UE is in the CELL-FACH state and the receiving time corresponding to the DRX mechanism when the UE is in the CELL-PCH state; after obtaining an indication of normal reception, the UE receives the scheduling control channel according to the receiving time corresponding to the DRX mechanism when the UE is in the CELL-FACH state; the radio network controller has be informed that the has transited from the CELL-PCH state to the CELL-FACH state simultaneously When the UE obtains the indication of normal reception, so as to avoid data loss in a certain period after the state transition of the UE. | 11-24-2011 |
