US 9,813,205 B2
Uplink CoMP set selecting method and system, and device
Haiyan Luo, Shanghai (CN); and Tianle Deng, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jun. 15, 2015, as Appl. No. 14/739,377.
Application 14/739,377 is a continuation of application No. PCT/CN2012/086702, filed on Dec. 14, 2012.
Prior Publication US 2015/0280873 A1, Oct. 1, 2015
Int. Cl. H04L 5/00 (2006.01); H04B 7/022 (2017.01); H04B 7/06 (2006.01); H04W 48/20 (2009.01); H04W 72/04 (2009.01)
CPC H04L 5/0035 (2013.01) [H04B 7/022 (2013.01); H04B 7/0619 (2013.01); H04L 5/0048 (2013.01); H04W 48/20 (2013.01); H04W 72/0406 (2013.01); H04L 5/005 (2013.01); H04L 5/0094 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An uplink coordinated multipoint transmission set selecting method, comprising:
receiving, by a first base station, a first message sent by a second base station, wherein the first message carries configuration information corresponding to a channel state information-reference signal (CSI-RS) of each cell of at least one second cell; and
selecting, by the first base station according to at least the first message, a cell of the at least one second cell to add to an uplink coordinated multipoint transmission (CoMP) set of first user equipment UE served by a first cell, wherein:
the at least one second cell is a cell of the second base station, and the cell of the at least one second cell is determined by a physical cell identifier (PCI) and the CSI-RS; the first cell is a cell of the first base station, and wherein the selecting comprising:
sending, by the first base station to the second base station, transmit power information corresponding to a CSI-RS of the first cell and configuration information corresponding to the CSI-RS of the first cell, wherein the first cell is determined by a PCI and the CSI-RS of the first cell;
receiving, by the first base station, a normalized path loss from the at least one second cell to the first cell sent by the second base station, wherein the normalized path loss from the at least one second cell to the first cell is determined by the second base station according to at least the transmit power information corresponding to the CSI-RS of the first cell and the configuration information corresponding to the CSI-RS of the first cell; and
selecting, by the first base station according to at least the path loss from the first UE to the cell of the at least one second cell and the normalized path loss from the at least one second cell to the first cell, the cell of the at least one second cell to add to the uplink CoMP set of the first UE.