摘要:
A method and system for acquiring channel information are disclosed in the present document, wherein the method includes: a base station and a User Equipment (UE) jointly saving a first codebook and at least a second codebook, and the first codebook being used for channel information quantization in various scenarios; the UE performing feedback of at least 2 Precoding Matrix Indicators (PMIs) to the base station, wherein, one PMI corresponds to one code word in the first codebook, all the other PMIs respectively correspond to different code words in a second codebook used currently, and all the code words corresponding to the fed back PMIs are used for representing channel information of one or multiple or all subbands; and after receiving the PMIs fed back from the UE, the base station finding corresponding code words from the first codebook and the second codebook used currently, and acquiring the channel information.
摘要:
The present invention discloses a method for Multiple Input Multiple Output (MIMO) channel information feedback, and the method includes: a terminal selecting part of column vectors for MIMO system feedback from a codebook matrix W corresponding to a Precoding Matrix Indicator (PMI) and marking the selected part of column vectors as Wpart; the terminal determining information O which represents high-precision vector quantification information of MIMO along with the part of column vectors Wpart according to a common representation relationship F, and feeding back the information O to a base station. The present invention also discloses a terminal and a base station which support MIMO. The present invention achieves high-precision and low-overhead channel information feedback and can well support multiple vector feedback needed by high rank (more layer multiplexing) MIMO transmission and high-precision feedback needed by low rank MIMO transmission simultaneously.
摘要:
A preprocessing method for cooperative communication and a base station and a system for executing the method are provided. The method includes: obtaining a common base station group from a cooperative base station group of a user terminal, in which the common base station group includes a set of base stations providing a cooperative service for other user terminals in the cooperative base station group; and calculating a first precoding matrix of the user terminal according to the common base station group, in which the first precoding matrix is used to perform elimination preprocessing on interference from the user to other user terminals served by the common base station group. The method reduces Multi-User Interference (MUI).
摘要:
A method, an apparatus and a system for cooperative resources scheduling and cooperative communication are provided. The method for cooperative resources includes: obtaining, by a network central controller, statistical information of all the users dominated by it in a first time period, dividing base stations to base station cooperative clusters according to the statistical information, and transmitting cooperative cluster dividing result to the base stations. The corresponding method and apparatus for cooperative communication are also provided. The solutions of the embodiments of the present disclosure can increase the transmission rate and user experience for the users at the edge of the cooperative cluster, and improve the fairness of the system users, while reducing the signaling overhead of the system, separating the computational tasks and reducing the difficulty of implementing the whole system.
摘要:
A pre-processing method and system for cooperative communication are provided. The method includes: after obtaining channel matrices collected by a Base Station (BS), obtaining Multiple-Input Multiple-Output (MIMO) Cooperation Area (CA) information, in which the MIMO CA information includes cooperation information between BSs, and the cooperation information between the BSs is used to determine an interference relation between MIMO CAs; combining the channel matrices of a User Equipment (UE) according to the interference relation between the MIMO CAs; and performing pre-coding computation of the UE by using the combined channel matrices.
摘要:
Methods and apparatus for communicating include communicating frames of data at a frequency f1 serially from a first device to a second device using a first unidirectional data line. The frames have a first timeslot allocation of s timeslots. A clock signal having a frequency f2 is generated within the second device, wherein f 2 f 1 ≈ n · s , wherein n>1. The first unidirectional data line is sampled every n clock cycles of the clock signal for a plurality of the timeslots.
摘要翻译:用于通信的方法和装置包括使用第一单向数据线将频率f1从第一设备到第二设备串行地传送数据帧。 帧具有时隙的第一时隙分配。 在第二装置内产生具有频率f2的时钟信号,其中f 2 f 1≈n·s,其中n> 1。 在多个时隙的时钟信号的每n个时钟周期对第一单向数据线进行采样。
摘要:
A method, an apparatus and a system for cooperative resources scheduling and cooperative communication are provided. The method for cooperative resources includes: obtaining, by a network central controller, statistical information of all the users dominated by it in a first time period, dividing base stations to base station cooperative clusters according to the statistical information, and transmitting cooperative cluster dividing result to the base stations. The corresponding method and apparatus for cooperative communication are also provided. The solutions of the embodiments of the present disclosure can increase the transmission rate and user experience for the users at the edge of the cooperative cluster, and improve the fairness of the system users, while reducing the signaling overhead of the system, separating the computational tasks and reducing the difficulty of implementing the whole system.
摘要:
A method and system for acquiring channel information are disclosed in the present document, wherein the method includes: a base station and a User Equipment (UE) jointly saving a first codebook and at least a second codebook, and the first codebook being used for channel information quantization in various scenarios; the UE performing feedback of at least 2 Precoding Matrix Indicators (PMIs) to the base station, wherein, one PMI corresponds to one code word in the first codebook, all the other PMIs respectively correspond to different code words in a second codebook used currently, and all the code words corresponding to the fed back PMIs are used for representing channel information of one or multiple or all subbands; and after receiving the PMIs fed back from the UE, the base station finding corresponding code words from the first codebook and the second codebook used currently, and acquiring the channel information.
摘要:
Methods and apparatus for communicating include coupling first and second devices with a first unidirectional data line, a second unidirectional data line, and a clock line. Frames of data are serially communicated between the first and second devices using the first and second unidirectional data lines. The frame format of a frame carried by the first unidirectional data line is distinct from a frame format of a frame carried by the second unidirectional data line. Each frame is synchronized with a clock signal carried by the clock line.
摘要:
Methods and apparatus for synchronizing communications between a first and a second device include serially communicating a frame having a first format from a first device to a second device, wherein only a frame synchronization timeslot (F1) is asserted. The serially communicated frame having the first format is sampled by the second device until the asserted F1 timeslot is detected. The second device serially communicates a frame having a second format to the first device, wherein only a frame synchronization timeslot (R1) is asserted. The serially communicated frame having the second format is sampled by the first device until the asserted R1 timeslot is detected. The first device establishes synchronization when these steps are successfully repeated. On the second sampling to detect the F1 timeslot, however, the sampling is windowed to less than one timeslot within the expected occurrence of the F1 timeslot.