Cooperative cell selection method participating cooperative transmission, service base station and communication system
A technology for coordinating cells and serving base stations, applied in the field of communications, and can solve the problems of inability to take into account the time-varying network load of cell channels, rigidity, and not clearly stated.
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no. 1 approach
[0048] The serving base station determines that the terminal needs to provide the coordinated transmission service according to the CQI measurement result fed back by the terminal. The serving base station selects two adjacent cells that are suitable for coordinated transmission for the terminal in the latest adjacent cell measurement report fed back by the terminal, so that the serving cell and the two adjacent cells form a coordinated cell to provide coordinated transmission for the terminal.
[0049] The adjacent cell measurement report contains multiple adjacent cell measurement results (ie RSRP, RSRQ), and the format of the measurement report is:
[0050] Serving cell ID: RSRP and RSRQ from the serving cell to the terminal;
[0051] ID of neighboring cell 1: RSRP and RSRQ from neighboring cell 1 to the terminal;
[0052] ID of neighboring cell 2: RSRP and RSRQ from neighboring cell 2 to the terminal;
[0053] ID of neighboring cell 3: RSRP and RSRQ from neighboring cell...
no. 2 approach
[0070] The serving base station determines that the terminal needs to provide the coordinated transmission service according to the CQI measurement result fed back by the terminal. The serving base station allocates uplink resources to the terminal and sends a reporting instruction. The terminal uses the resources to feed back the latest neighbor cell measurement results to the serving base station. The serving base station selects 2 neighbor cells from the neighbor cell measurement results. The adjacent cells form a coordinated cell to provide coordinated transmission for the terminal.
[0071] like Figure 5 As shown, the serving base station starts to select a coordinated cell for the terminal at time T2. The serving base station does not directly use the terminal measurement report received at time T1 to select, but sends an uplink resource allocation signaling to the terminal at time T3, requiring The terminal feeds back the latest measurement report on the uplink resour...
no. 3 approach
[0082] The serving base station determines that the terminal needs to provide the coordinated transmission service according to the CQI measurement result fed back by the terminal. The serving base station allocates a small amount of uplink resources to the terminal, and the terminal uses the resources to feed back the best 5 neighbor cell IDs in the latest neighbor cell measurement results to the serving base station, and the serving base station selects 2 according to the resource usage and load conditions of the neighbor cells. cells, so that the serving cell and the selected two adjacent cells form a coordinated cell to provide coordinated transmission for the terminal.
[0083] like Image 6 As shown, the serving base station starts to select a coordinated cell for the terminal at time T2, and the serving base station does not directly use the terminal measurement report received at time T1 to select, but sends an uplink resource allocation signaling to the terminal at ti...
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