Random access in communication system

    公开(公告)号:US11382138B2

    公开(公告)日:2022-07-05

    申请号:US16838672

    申请日:2020-04-02

    Abstract: Embodiments of the present disclosure relate to random access in a communication system. A first device receives a criterion to select a random access type for performing random access to a second device. The first device further determines whether the first device is allocated a contention-free random access resource for a certain random access type, and then performs the random access to the second device based on the determination and conditionally based on the criterion. As such, in the case where contention-free random access resource has been allocated for a certain random access type, the device can conditionally apply the criterion for selection of the random access type and can thus perform random access with improved efficiency.

    MECHANISM FOR INTERACTIONS FOR ENTERING INTO SLEEP MODE

    公开(公告)号:US20220116878A1

    公开(公告)日:2022-04-14

    申请号:US17423570

    申请日:2019-07-12

    Abstract: Embodiments of the present disclosure relate to mechanism for interactions for entering into the sleep mode. According to embodiments of the present disclosure, the network device transmits the information of go-to-sleep, GTS, to the terminal device on a lower layer (for example, the physical layer). The lower protocol layer informs the higher protocol layer (for example, the MAC layer) of the information of GTS. The terminal device determines how to monitor the physical downlink channel based on the information of GTS. Further, the terminal device may switch bandwidth part based on the information of GTS. In this way, the GTS is able to significantly save power.

    Random access procedure
    63.
    发明授权

    公开(公告)号:US11304239B2

    公开(公告)日:2022-04-12

    申请号:US16915224

    申请日:2020-06-29

    Abstract: There is disclosed an apparatus. The apparatus comprises means for using a first random access type in a random access procedure; and in response to determining that a threshold number of failed random access attempts has been reached using the first random access type, determining whether to switch to using a second random access type which is different from the first random access type.

    BANDWIDTH PART SWITCHING DUE TO LBT FAILURE

    公开(公告)号:US20220110153A1

    公开(公告)日:2022-04-07

    申请号:US17429878

    申请日:2019-02-13

    Abstract: Embodiments of the present disclosure relate to a device, a method, an apparatus and a computer readable storage medium for bandwidth part (BWP) switching. In example embodiments, a method is provided. The method comprises determining, at a terminal device, whether continuous Listen-Before-Talk (LBT) failures occur on a first bandwidth part (BWP), the terminal device operating on the first BWP. The method further comprises in response to the continuous LBT failures occurring on the first BWP, switching to a second BWP different from the first BWP. Instead of triggering a re-establishment procedure once continuous LBT failures are detected, switching to another BWP on different LBT sub-channels can be much more efficient than going through the whole re-establishment and reconfiguration procedures.

    CONFIGURED GRANT OPERATION
    66.
    发明申请

    公开(公告)号:US20200351031A1

    公开(公告)日:2020-11-05

    申请号:US16845576

    申请日:2020-04-10

    Abstract: Apparatuses, methods and software for configured grant operation are provided. The first apparatus comprises at least one processor; and at least one memory including computer program codes; the at least one memory and the computer program codes are configured to, with the at least one processor, cause the device at least to transmit a transport block of a HARQ process on preconfigured resources for an uplink transmission to a second apparatus while starting a first timer and a second timer for the HARQ process, wherein the first timer indicates a time period during which the transport block is able to be retransmitted, and wherein the second timer is configured to expire before the first timer; monitor a response associated with the transport block from the second apparatus; and in response to the second timer expiring before receiving the response and before expiry of the first timer, retransmit the transport block while restarting the second timer.

    Method for confirming uplink semi-persistent scheduling deactivation and terminal device

    公开(公告)号:US10798693B2

    公开(公告)日:2020-10-06

    申请号:US16088421

    申请日:2016-04-01

    Abstract: Embodiments of the present disclosure relate to a method for confirming uplink semi-persistent scheduling deactivation and a terminal device. In example embodiments, an indication of uplink semi-persistent scheduling deactivation is received from a base station while the terminal device stores data available for uplink transmission. Then, confirmation of the deactivation is sent to the base station. Such confirmation of the deactivation may notify the base station that the terminal device has received the indication of the uplink semi-persistent scheduling deactivation and further that the uplink semi-persistent scheduling will be deactivated at the terminal device.

    RADIO LINK CONTROL STATUS REPORTING
    68.
    发明申请

    公开(公告)号:US20200077299A1

    公开(公告)日:2020-03-05

    申请号:US16610611

    申请日:2018-05-04

    Abstract: Various communication systems may benefit from an enhanced radio link control status report. A method may include determining a negative acknowledgment sequence number range. The negative acknowledgment sequence number range may include a plurality of consecutive radio link control missing sequence numbers. The method may also include determining at least one of a en negative acknowledgment end sequence number when the plurality of consecutive radio link control missing sequence numbers exceeds the negative acknowledgment sequence number range. In addition, the method may include sending a radio link control status report comprising at least one of a negative acknowledgment sequence number, the negative acknowledgment sequence number range, or the negative acknowledgment end sequence number when the plurality of consecutive radio link control missing sequence numbers exceeds the at least one negative acknowledgment sequence number range.

    Signalling for Using Operating Band Combination
    69.
    发明申请
    Signalling for Using Operating Band Combination 有权
    使用操作频带组合的信号

    公开(公告)号:US20170048839A1

    公开(公告)日:2017-02-16

    申请号:US14824375

    申请日:2015-08-12

    CPC classification number: H04L5/0091 H04L5/001 H04W8/24

    Abstract: A method including transmitting information from an apparatus regarding at least one operating band combination; selecting by the apparatus either a supported indicator or an unsupported indicator regarding the information; and transmitting the selected indicator by the apparatus.

    Abstract translation: 一种方法,包括从装置发送关于至少一个操作频带组合的信息; 由设备选择支持的指示符或关于信息的不受支持的指示符; 以及通过所述装置发送所选择的指示符。

    Reporting preconfigured uplink transmission failures

    公开(公告)号:US12225614B2

    公开(公告)日:2025-02-11

    申请号:US17796021

    申请日:2020-02-13

    Abstract: Embodiments of the present disclosure relate to reporting preconfigured uplink transmission failure. According to embodiments of the present disclosure, the terminal device logs failures associated with transmission on the preconfigured resources and failure causes. The terminal device transmits the logged information to the network device. In this way, the network device is aware of the failure occurrences and their reasons. The network device is able to use the information for configuring uplink resources more efficiently and the resources can be efficiently allocated for other purpose or other terminal devices.

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