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Initiating random access in a target cell in a non-terrestrial network

專利號(hào)
US11617215B2
公開(kāi)日期
2023-03-28
申請(qǐng)人
QUALCOMM Incorporated(US CA San Diego)
發(fā)明人
Bharat Shrestha; Umesh Phuyal; Ayan Sengupta; Alberto Rico Alvarino; Liangping Ma; Xiao Feng Wang
IPC分類
H04W56/00; H04W74/08; H04W74/00; H04W36/00; H04W24/08; H04W84/06
技術(shù)領(lǐng)域
rach,ue,cell,target,or,in,may,ues,procedure,station
地域: CA CA San Diego

摘要

Various aspects described herein relate to dynamically controlling a time when random access initiated in a target cell of a non-terrestrial network. For example, when a user equipment (UE) detects an event that triggers a random access procedure in the target cell, the UE may monitor a control channel from the target cell for a control signal during a target cell monitoring window prior to initiating random access in the target cell. For example, the control signal may include a dynamic indication to identify UEs allowed to initiate random access, whereby a UE is not permitted to autonomously start contention-based random access in the target cell during the target cell monitoring window unless the UE has received the control signal. In this way, the target cell may regulate a rate at which UEs initiate the RACH procedure in order to manage congestion in the target cell.

說(shuō)明書(shū)

The controller/processor 240 of the base station 110, the controller/processor 280 of the UE 120, and/or any other component(s) of FIG. 2 may perform one or more techniques associated with initiating random access in a non-terrestrial network (NTN), as described in more detail elsewhere herein. For example, the controller/processor 240 of the base station 110, the controller/processor 280 of the UE 120, and/or any other component(s) of FIG. 2 may perform or direct operations of, for example, method 800 of FIG. 8 and/or other methods as described herein. The memory 242 and the memory 282 may store data and program codes for the base station 110 and the UE 120, respectively. In some examples, the memory 242 and/or the memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the base station 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the base station 110 to perform or direct operations of, for example, method 800 of FIG. 8 and/or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.

權(quán)利要求

1
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