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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

FIG. 2A is a graph illustrating an example frequency spectrum 200 of band-separated, frequency division duplex operation. The example frequency spectrum 200 includes a first frequency band 201a extending from a first lower frequency, f1, to a first upper frequency f2, and a second frequency band 201b extending from a second lower frequency, f3, to a second upper frequency f4, wherein f4>f3>f2>f1. The first frequency band 201a may correspond to an uplink frequency band, having a first bandwidth BW1, which may be determined as a difference between the first upper and lower frequencies, i.e., BW1=f2?f1. Likewise, the second frequency band 201b may correspond to a downlink band, having a second bandwidth BW2, which may be determined as a difference between the second upper and lower frequencies, i.e., BW2=f4?f3.

權(quán)利要求

1
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