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Sounding reference signals with collisions in asymmetric carrier aggregation

專(zhuān)利號(hào)
US11159289B2
公開(kāi)日期
2021-10-26
申請(qǐng)人
QUALCOMM Incorporated（US CA San Diego）
發(fā)明人
Alberto Rico Alvarino; Wanshi Chen; Peter Gaal; Jing Sun; Hao Xu; Srinivas Yerramalli
IPC分類(lèi)
H04L5/00; H04L5/14; H04W72/04; H04W56/00
技術(shù)領(lǐng)域
srs,ue,uplink,cc,downlink,may,ccs,enb,subframe,in
地域： CA CA San Diego

摘要

An apparatus may use inactive uplink portions of a downlink CC to transmit SRS to an eNB. At times there may be a collision between the SRS transmission and uplink transmissions or downlink transmissions on another CC. The apparatus receives a carrier aggregation configuration for a first downlink CC and a second CC, determines to transmit an uplink transmission on the second CC or to receive a downlink transmission on the second CC, determines that the SRS would at least partially collide with the uplink transmission or the downlink transmission, and determines to adjust at least one of the uplink transmission, the SRS transmission, or reception of the downlink transmission based on the determination of the collision and an interruption time to transmit the SRS in the uplink portion of the first CC.

說(shuō)明書(shū)

Referring again to FIG. 1, in certain aspects, the UE 104 may be configured with an SRS transmission component (198). SRS transmission component 198 may operate to control SRS transmission in unconfigured uplink portions or subframes of a TDD component carrier as described herein. In some aspects, SRS transmission component 198 may control switching between such SRS transmissions and uplink transmissions on other CCs. Also, as described hereinafter, SRS transmission component 198 may implement algorithms for managing collisions between such SRS transmissions and UL or DL operation on other CCs and for making adjustments based on, for example, a prioritization of channels, types of control information, carriers, etc.

權(quán)利要求

1
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