US 12,349,058 B2
Method of establishing wireless communication network, network device and user equipment
Xiqing Liu, Beijing (CN); Mugen Peng, Beijing (CN); Yuwei Liao, Beijing (CN); Dixiang Gao, Beijing (CN); Hao Wei, Beijing (CN); and Shi Yan, Beijing (CN)
Assigned to BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, Beijing (CN)
Filed by BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, Beijing (CN)
Filed on Nov. 18, 2022, as Appl. No. 17/989,786.
Prior Publication US 2024/0179621 A1, May 30, 2024
Int. Cl. H04W 48/20 (2009.01); H04W 24/10 (2009.01); H04W 76/10 (2018.01)
CPC H04W 48/20 (2013.01) [H04W 24/10 (2013.01); H04W 76/10 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method of establishing a wireless communication network, comprising:
in a network comprising a plurality of macro base stations, a plurality of micro base stations and a plurality of user devices (UEs);
assigning, by a network device, the micro base stations into a plurality of clusters and selecting a micro base station from each of the clusters as a cluster head;
receiving, from cluster heads of the clusters by the network device, information about candidate sub-clusters determined by UEs, each of the candidate sub-clusters comprises micro base stations whose signal power received at a UE exceeds a pre-defined threshold;
identifying, by the network device, at least two schemes of grouping the micro base stations into non-overlapping sub-clusters based on the candidate sub-clusters, each micro base station belongs to not more than one of the non-overlapping sub-clusters in each of the at least two schemes;
for a scheme of the at least two schemes,
making, by the network device, each of the UEs select to access a macro base station or to be associated with one of the non-overlapping sub-clusters of the scheme base on respective measurements of signals received from at least one of a macro base station and a sub-cluster of the non-overlapping sub-clusters of the scheme;
suppressing, by a UE, inter-symbol interference by subtracting a tail of a first symbol from a second symbol before recovering the second symbol, the first symbol is received from a sub-cluster performing joint transmission, the second symbol is received following the first symbol from the sub-cluster;
suppressing, by the UE, inter-carrier interference by adding a tail estimated of the second symbol to the second symbol before recovering the second symbol;
acquiring, by the network device, information about power consumption of each of the macro base stations and power consumption of each of the micro base stations in communications with the UEs which performs inter-symbol interference suppression and inter-carrier interference suppression at the UEs; and
making, by the network device, the micro base stations perform joint transmissions in sub-clusters as specified in a scheme selected from the at least two schemes according to the information about power consumption.