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Random access procedures

專利號
US11510239B2
公開日期
2022-11-22
申請人
Comcast Cable Communications, LLC（US PA Philadelphia）
發(fā)明人
Ali Cirik; Esmael Dinan; Yunjung Yi; Hua Zhou; Alireza Babaei; Kyungmin Park
IPC分類
H04W74/00; H04B7/06; H04L5/00; H04W74/08
技術(shù)領(lǐng)域
coreset,pdcch,wireless,may,tci,antenna,downlink,e.g,preamble,or
地域： PA PA Philadelphia

摘要

A base station and/or a wireless device may perform a random access procedure. A downlink transmission for initiating a random access procedure may indicate an antenna panel for transmission of a random access preamble. A slot for transmission of the random access panel, from the wireless device, may be determined based on an antenna panel activation delay.

說明書

The PDCCH order (e.g., the PDCCH order 2420) may comprise a random access preamble index (e.g., preamble index j) of the one or more random access preamble indices 2504. The PDCCH order may comprise at least one of: random access preamble indicator/index, an SUL indicator (e.g., UL/SUL indicator), a SS/PBCH indicator/index, and/or a PRACH mask indicator/index. The random access preamble indicator/index may indicate a random access preamble to use in the random access procedure. The SUL indicator may indicate whether to transmit the random access preamble on a SUL carrier or a NUL carrier. The SS/PBCH indicator/index may be used to identify a group of RACH occasions. The PRACH mask indicator/index may indicate a relative RACH occasion index that corresponds to the indicated SS/PBCH indicator/index.

權(quán)利要求

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