Method and device for transmitting random access signal, and computer readable medium

    公开(公告)号:US12052762B2

    公开(公告)日:2024-07-30

    申请号:US17423001

    申请日:2020-09-24

    CPC classification number: H04W74/0833 H04L5/0048

    Abstract: A method for 2-step RA (2-step random access) performed by a terminal (UE) is provided. The method comprises receiving, from a base station, first random access channel (RACH) configuration for 4-step RA (4-step random access), second RACH configuration for the 2-step RA, and physical uplink shared channel (PUSCH) configuration, the first RACH configuration including information on RA occasions for the 4-step RA; in case that an index indicating a subset of the RA occasions is included in the second RACH configuration, identifying at least one RA occasion for the 2-step RA based on the subset; identifying at least one PUSCH resource based on the PUSCH configuration and the at least one RA occasion; and transmitting, to the base station, a random access preamble in the at least one RA occasion and a PUSCH in the at least one PUSCH resource.

    Method and device for determining signal transmission occasion

    公开(公告)号:US12052755B2

    公开(公告)日:2024-07-30

    申请号:US17310589

    申请日:2020-01-07

    CPC classification number: H04W74/0808 H04W72/23 H04W74/006

    Abstract: The embodiments of the present application propose a method for determining a signal transmission occasion, including: acquiring configuration information of a transmission resource of an uplink signal; determining, based on the configuration information, a resource occasion where the uplink signal is transmitted; initiating a Listen Before Talk (LBT) operation before the resource occasion; determining whether the LBT operation is successful; transmitting the uplink signal at the resource occasion if the LBT operation is successful; and determining a next resource occasion where the uplink signal can be transmitted based on the configuration information if the LBT operation fails. The embodiments of the present application further propose corresponding device and computer storage medium.

    Apparatus and method for performing a random access in a wireless communication system

    公开(公告)号:US12022409B2

    公开(公告)日:2024-06-25

    申请号:US17694556

    申请日:2022-03-14

    CPC classification number: H04W56/00 H04W72/02

    Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.

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