Method of determining frequency-domain offset parameter, user equipment (UE), random access method, method for configuring random access information, corresponding device and computer readable medium

    公开(公告)号:US11601988B2

    公开(公告)日:2023-03-07

    申请号:US17233879

    申请日:2021-04-19

    IPC分类号: H04W74/08 H04L27/26 H04L27/00

    摘要: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). A method of determining a frequency-domain offset parameter of a preamble in a random access channel and a corresponding user equipment (UE) is provided. The method includes obtaining a random access channel subcarrier spacing ΔfRA, a preamble length LRA and a uplink (UL) channel subcarrier spacing Δf from a base station and determining a frequency-domain offset parameter k of a preamble in a random access channel based on the obtained random access channel subcarrier spacing ΔfRA, preamble length LRA and UL channel subcarrier spacing Δf. Other embodiments of the disclosure further provide a random access method, a method for configuring random access information and related device, and a corresponding computer readable medium.

    Methods and apparatuses for determining and configuring a time-frequency resource, in the random access process

    公开(公告)号:US11553529B2

    公开(公告)日:2023-01-10

    申请号:US16757903

    申请日:2019-01-11

    IPC分类号: H04W74/08 H04L1/18 H04W56/00

    摘要: The present application provides a method for determining a random access resource by a terminal in a wireless communication system, the method comprising: receiving, from a base station, configuration information corresponding to a synchronization signal block (SSB) including a SSB index, a random access preamble index and a random access channel mask index; determining a random access resource based on the SSB index and the random access channel mask index; determining a random access preamble based on the random access preamble index; and transmitting, to the base station, the random access preamble on the random access resource.

    Method and apparatus for receiving downlink control channel in wireless communication system

    公开(公告)号:US11445495B2

    公开(公告)日:2022-09-13

    申请号:US17231506

    申请日:2021-04-15

    IPC分类号: H04W72/04

    摘要: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A technique for receiving a downlink control channel is provided that includes operations of determining whether a physical downlink shared channel (PDSCH) is received at a time-domain position n; determining, according to a result of the determining, a frequency-domain position of a bandwidth part (BWP) for receiving a physical downlink control channel (PDCCH) at a time-domain position n+1, and receiving the PDCCH at the BWP of the frequency-domain position. The technique determines the frequency-domain position of the BWP for receiving the PDCCH by determining whether it is necessary to receive the PDSCH at the time-domain position preceding the current time-domain position for receiving the PDCCH, greatly reducing or even eliminating the influence of the adjustment time interval for the user equipment (UE) to convert the BWP on the normal data reception of the UE, which ensures the receiving performance and the throughput level of the received data of the UE.