US Patent No. 9,491,767

METHOD AND SYSTEM FOR FREQUENCY REUSE IN WIRELESS RELAY SCENARIO


Patent No. 9,491,767
Issue Date November 08, 2016
Title Method And System For Frequency Reuse In Wireless Relay Scenario
Inventorship Yanlong Wang, Shenzhen (CN)
Yongyu Chang, Shenzhen (CN)
Jie Gao, Shenzhen (CN)
Yun Zhu, Shenzhen (CN)
Assignee ZTE CORPORATION, Shenzhen (CN)

Claim of US Patent No. 9,491,767

1. A method for frequency reuse in a wireless relay scenario, comprising:
a base station, BS, pre-allocating a center frequency spectrum, an edge frequency spectrum and a random access frequency spectrum
to a cell according to a scenario parameter in the cell;

a relay station, RS, calculating load conditions of all mobile stations, MSs, covered by each RS in the cell and reporting
the load conditions to the BS;

the BS allocating the random access frequency spectrum to an RS according to load conditions of all RSs and scheduling an
MS;

wherein the pre-allocated center frequency spectrum is the frequency spectrum that is used for data transmission of a direct
link from the BS to the MS within the coverage of the cell, the edge frequency spectrum is the frequency spectrum that is
used for data transmission of a reverse link from the BS to the RS and a access link from the RS to the MS at the cell edge,
the rest of the frequency spectrums are the random access frequency spectrum;

wherein the scenario parameter in the cell comprises: the number of the RSs in the cell, positions of the RSs in the cell,
a frame type of the cell, and statistic characteristics of users of the cell.