Title:
ＰＲＡＣＨおよび／またはＳＲＳ切替えの向上
Document Type and Number:
Japanese Patent JP7086943
Kind Code:
B2
Abstract:
Certain aspects of the disclosure relate to techniques and apparatus for improving random access for SRS switching in a wireless network. Prior to transmitting a SRS, a UE may interrupt communication on a first carrier to switch from the first carrier to a second carrier to transmit a PRACH. To reduce interruption to the first carrier, the UE may use the beginning symbol(s) of a UpPTS on the second carrier to transmit the PRACH. In addition, to reduce interruption to the first carrier, the UE may monitor for another PDCCH order before transmitting another PRACH. Further, aspects of the present disclosure provide techniques and apparatus for jointly triggering SRS transmissions and performing power control for SRS transmissions. A BS may trigger SRS transmissions from multiple UEs, trigger SRS transmissions from multiple carriers from the same UE at the same time and/or perform power control separately for each carrier.
Inventors:
Alberto Rico Albarino
Peter girl
Wanshi Chen
Hao Shu
Jin Seung
Peter girl
Wanshi Chen
Hao Shu
Jin Seung
Application Number:
JP2019516576A
Publication Date:
June 20, 2022
Filing Date:
September 28, 2017
Export Citation:
Assignee:
Qualcomm, Inc.
International Classes:
H04W74/08; H04W8/22; H04W52/18; H04W72/04; H04W76/20
Domestic Patent References:
| JP2017505033A | ||||
| JP2013005130A |
Other References:
Qualcomm Incorporated,Collision handling[online],3GPP TSG-RAN WG1#85 R1-164446,インターネット,2016年05月23日
Attorney, Agent or Firm:
Murayama Yasuhiko
Shinpei Kuroda
Shinpei Kuroda