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Sub-band selection at cellular base station for non-overlapped or partially overlapped full duplex operation

專利號
US12200629B2
公開日期
2025-01-14
申請人
AT&T Intellectual Property I, L.P.（US GA Atlanta）
發(fā)明人
Aditya Chopra; Salam Akoum; Thomas Novlan
IPC分類
H04W72/04; H04L5/00; H04L5/14; H04W52/24; H04W72/0446; H04W72/541
技術(shù)領(lǐng)域
receiver,or,band,sub,duplex,in,network,self,channel,be
地域： GA GA Atlanta

摘要

Aspects of the subject disclosure may include, for example, determining a self-interference channel response of a transceiver of a mobile base station having a transmitter and a receiver. The self-interference channel response spans multiple sub-bands of a predetermined mobile cellular frequency channel. A first sub-band of the multiple sub-bands is identified according to the self-interference channel response and, an estimate is determined, at the receiver, of a first coupled transmit power level of the transmitter when operating within the first sub-band. A receiver sensitivity is adjusted according to the first coupled transmit power level to obtain an adjustment adapted to increase receiver sensitivity, while restricting operation of the receiver to a substantially linear region. The adjustment allows a transmission within the first sub-band and a reception within a second sub-band of the plurality of sub-bands to occur simultaneously at the mobile base station. Other embodiments are disclosed.

說明書

The interference channel evaluator 244 may direct and/or otherwise request that the transmitter module 241 provide RF transmissions across the operational frequency band to be evaluated. To this end, the interference channel evaluator 244 may tune the transmitter directly, e.g., transmitting a test signal, such as a test tone. Alternatively or in addition, the interference channel evaluator 244 may request that the scheduler 243 schedule one or more PRBs, such that transmission of the scheduled PRBs may serve as a self-interference source signal. Likewise, the interference channel evaluator 244 may direct and/or otherwise request that the receiver module 242 tune to and/or otherwise measure a portion of the transmitted signal coupled to the receiver module 242. The receiver measurements may be performed across the operational frequency band to be evaluated, e.g., tracking a tuning of the transmitter module 241 and/or scheduled PRBs. To this end, the interference channel evaluator 244 may tune the receiver directly, e.g., receiving a coupled portion of the test signal, such as the example test tone. Alternatively or in addition, the interference channel evaluator 244 may request that the scheduler 243 schedule one or more PRBs, such that reception of the scheduled PRBs may serve as a received measure of the self-interference source signal.

權(quán)利要求

1
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