US 12,137,444 B2
Communication method and device
Jindong Peng, Chengdu (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Sep. 7, 2021, as Appl. No. 17/468,093.
Application 17/468,093 is a continuation of application No. PCT/CN2020/077359, filed on Feb. 29, 2020.
Claims priority of application No. 201910229649.3 (CN), filed on Mar. 25, 2019.
Prior Publication US 2021/0410142 A1, Dec. 30, 2021
Int. Cl. H04W 72/0453 (2023.01); H04B 7/0452 (2017.01); H04L 25/00 (2006.01); H04L 25/02 (2006.01); H04W 72/566 (2023.01); H04W 88/08 (2009.01)
CPC H04W 72/0453 (2013.01) [H04B 7/0452 (2013.01); H04L 25/00 (2013.01); H04L 25/02 (2013.01); H04W 72/566 (2023.01); H04W 88/085 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, by a baseband processing unit (BBU), M groups of signals, wherein each group of signals of the M groups of signals comprises respective N signals, M is an integer greater than 0, and N is a maximum quantity of signals supported when a physical cell of the BBU demodulates a signal;
determining, by the BBU from the M groups of signals, H groups of signals, wherein 0<H≤M, wherein the H groups of signals represent each group of signals that carries data, wherein a group of signals is determined to carry data based on uplink scheduling information;
combining, by the BBU, the H groups of signals into a combined group of data;
demodulating, by the BBU, the combined group of data;
receiving, by a remote radio unit hub (RHUB), signals sent by P pico remote radio units (pRRUs), wherein P is an integer greater than or equal to 2;
determining, by the RHUB from the P pRRUs, at least two target pRRUs on which radio frequency combination is to be performed;
performing, by the RHUB in time domain, radio frequency combination on received signals sent by the at least two target pRRUs, to obtain a combined signal;
sending, by the RHUB, the combined signal to a physical layer entity for demodulation;
receiving, by the RHUB, indication information sent by the BBU, wherein the indication information indicates information about pRRUs on which radio frequency combination is to be performed in each time period in a scheduling periodicity;
wherein determining, by the RHUB from the P pRRUs, the at least two target pRRUs on which radio frequency combination is to be performed, comprises:
dividing, by the RHUB, the P pRRUs into Q pRRU groups based on the indication information, wherein Q is a quantity of divided time periods in the scheduling periodicity, and any pRRU group in the Q pRRU groups comprises pRRUs on which radio frequency combination is performed in a corresponding time period; and
determining, by the RHUB, a target pRRU group from the Q pRRU groups, and determining a plurality of pRRUs comprised in the target pRRU group as the at least two target pRRUs on which radio frequency combination is to be performed, wherein the target pRRU group comprises pRRUs on which radio frequency combination is to be performed in a current time period.