US Patent No. 10,462,796

SYSTEMS AND METHODS OF REDUCING INTERFERENCE IN A WIRELESS COMMUNICATIONS SYSTEM


Patent No. 10,462,796
Issue Date October 29, 2019
Title Systems And Methods Of Reducing Interference In A Wireless Communications System
Inventorship Mattias Frenne, Uppsala (SE)
Lars Lindbom, Karlstad (SE)
Assignee Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)

Claim of US Patent No. 10,462,796

1. A method, comprising a wireless device:determining an uplink precoder based on channel measurements on first and second downlink reference signal resources, the precoder enabling a transmission on an uplink reference signal resource that is precoded with the uplink precoder and that is quasi co-located (QCL) with a transmission on the first downlink reference signal resource but not QCL with a transmission on the second downlink reference signal resource;
determining to increase or decrease a power level of a transmission on an uplink channel that is reciprocally associated with the second downlink reference signal resource responsive to determining that a transmission on the first downlink reference signal resource is not QCL with a transmission on the second downlink reference signal resource; and
transmitting on the uplink channel that is reciprocally associated with the second downlink reference signal resource at the respective increased or decreased power level.