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Measurement-based random access configuration

專利號(hào)
US11991548B2
公開日期
2024-05-21
申請人
ZTE Wistron Telecom AB; ZTE (TX) INC.(SE Kista US TX Austin)
發(fā)明人
Patrick Svedman; Jan Johansson; Yonghong Gao; Aijun Cao; Thorsten Schier; Bojidar Hadjiski
IPC分類
H04W24/10; H04B7/026; H04L5/00; H04W56/00; H04W74/0833; H04W48/16
技術(shù)領(lǐng)域
random,access,rs's,in,tp,tp's,resources,rs,some,ait
地域: Kista

摘要

A method includes: receiving one or more synchronization signals; deriving a synchronization reference from the one or more synchronization signals; receiving a plurality of reference signals; based on the derived synchronization reference, performing a plurality of measurements on the plurality of reference signals; based on the plurality of measurements, selecting a plurality of random access resources; and selecting a random access resource from the plurality of random access resources for transmitting a random access signal to at least one of the one or more TP's.

說明書

Referring back to FIG. 1, the procedure 100 continues to operation 108 in which the device receives, from the one or more TP's, one or more signals containing system information, based on the sync reference, in accordance with various embodiments. In the example of LTE, the UE receives system information over both physical broadcast channel (PBCH) and physical downlink shared channel (PDSCH), using the sync reference of the cell. More specifically in the operation 108, if a device has obtained multiple sync references, and subsequently obtained multiple corresponding measurement results, as described above (operation 106), the device may use one or more of those sync references to receive one or more separate pieces of system information. In the same example of LTE, a UE may detect multiple cells with separate sync references, i.e., different timing, carrier frequency, cell-id, etc. Then the UE may choose one or more of those cells, e.g., based on the measurement result from the operation 106, from which to receive system information. In some embodiments, continuing with the SSI example described above, the device may receive one or more signals containing system information, which may include a common access information table (C-AIT), based on a sync reference. Then, it may choose an entry in the table (typically containing system information), e.g., based on measurement results from the operation 106. For example, the index of the SSI with the highest measured RSRP may be used to select an entry.

權(quán)利要求

1
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