Beam failure recovery mechanism
    11.
    发明授权

    公开(公告)号:US11445425B2

    公开(公告)日:2022-09-13

    申请号:US17171523

    申请日:2021-02-09

    Abstract: Example embodiments of the present disclosure relate to beam failure recovery mechanism. According to embodiments of the present disclosure, there are provided an improved solution for reporting candidate beams in serving cells. If a beam failure occurs in a serving cell, the first device determines a candidate beam for beam failure recovery from a plurality of beams in the serving cell based on link qualities of the plurality of beams. The first device also determines a resource configuration for a random access for the beam failure recovery for the first device or a resource to be used for the random access, The first device further generates an indication for indicating a characteristic of the candidate beam or a characteristic of a beam for performing the random access, based on at least one of the determined resource configuration or the determined resource. The first device also transmits an identity of the candidate beam and the indication to a second device. The second device performs the beam failure recovery based on the candidate beam and the characteristic of the candidate beam.

    Contention resolution in random access procedure

    公开(公告)号:US11438932B2

    公开(公告)日:2022-09-06

    申请号:US16859901

    申请日:2020-04-27

    Abstract: Embodiments of the present disclosure relate to contention resolution in random access procedure. An apparatus transmits a random access request to a further apparatus, and the random access request comprises a random access preamble and an identifier of the apparatus for a random access procedure. The apparatus then receives, from the further apparatus, control information on a control channel addressed to the identifier, and the control information indicates at least one of a resource and timing information for communication between the apparatus and the further apparatus. Next, the apparatus determines a result of the random access procedure based at least in part on the control information.

    Random access with bandwidth part switch

    公开(公告)号:US11387974B2

    公开(公告)日:2022-07-12

    申请号:US16764047

    申请日:2017-11-15

    Abstract: Various communication systems may benefit from improved random access operations. For example, certain embodiments may benefit from improved random access in which multiple bandwidth parts are configured to a user equipment within one cell. A method, in certain embodiments, may include triggering a random access procedure at a user equipment. The method may also include switching at the user equipment from a first uplink bandwidth part that does not support a random access channel to a second uplink bandwidth part that has the random access channel configured after the triggering of the random access procedure. The switching may be autonomously performed by the user equipment. In addition, the method may include performing the random access procedure at the user equipment using the random access channel configured at the second uplink bandwidth part.

    Apparatus, method and computer program

    公开(公告)号:US11329711B2

    公开(公告)日:2022-05-10

    申请号:US17041344

    申请日:2018-04-06

    Abstract: An apparatus comprising at least one processor, and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to: in response to a determination of a failure of one or more communication beams between the apparatus and a second apparatus, initiate a beam recovery procedure by transmitting a message to a third apparatus, the message comprising information of the failure of one or more communication beams; start a timer in response to the transmitting a message to the third apparatus; and determine whether a beam failure acknowledgement is received from the third apparatus before the timer expires.

    COMMUNICATION OF UPLINK CONTROL INFORMATION

    公开(公告)号:US20220110144A1

    公开(公告)日:2022-04-07

    申请号:US17430406

    申请日:2019-02-13

    Abstract: Example embodiments relate to communication of uplink control information. A method implemented at a terminal device comprises obtaining a plurality of uplink grants available for uplink transmission to a network device, the plurality of uplink grants indicating resources for the uplink transmission; determining prioritization of the plurality of uplink grants in transmission of uplink control information based on a predetermined prioritization policy; and selecting, based on the determined prioritization, an uplink grant from the plurality of uplink grants for transmission of the uplink control information to the network device. In such a way, it is possible to increase a probability of transmission of the uplink control information and/or a probability of improving power efficiency of the terminal device.

    OPTIMAL BSR FOR LIMITED TRAFFIC MIX

    公开(公告)号:US20210274530A1

    公开(公告)日:2021-09-02

    申请号:US17252341

    申请日:2018-06-21

    Abstract: Embodiments of the present disclosure relate to a method, device and computer readable storage media for optimizing buffer state report (BSR) for limited traffic mix. In example embodiments, whether a short or long B SR being reported is up to the configuration of LCG or the configuration of LCH within the LCG. In this way, minimum overhead for low bit rate services can be kept and thus a good coverage can be achieved, while the reporting information can be increased for other traffic.

    PACKET DUPLICATION
    18.
    发明申请

    公开(公告)号:US20210099911A1

    公开(公告)日:2021-04-01

    申请号:US17034084

    申请日:2020-09-28

    Abstract: An apparatus is provided in a communications device. The apparatus comprises at least one processor and at least one memory including computer code for one or more programs. The at least one memory and the computer code are configured, with the at least one processor, to cause the apparatus to determine that at least one of a plurality of logical channels configured for packet duplication is to be deactivated; and determine an allocation of one or more cells associated with the at least one deactivated logical channel to one or more active logical channels of said plurality of logical channels configured for packet duplication.

    CONTENTION RESOLUTION IN RANDOM ACCESS PROCEDURE

    公开(公告)号:US20200351949A1

    公开(公告)日:2020-11-05

    申请号:US16859901

    申请日:2020-04-27

    Abstract: Embodiments of the present disclosure relate to contention resolution in random access procedure. An apparatus transmits a random access request to a further apparatus, and the random access request comprises a random access preamble and an identifier of the apparatus for a random access procedure. The apparatus then receives, from the further apparatus, control information on a control channel addressed to the identifier, and the control information indicates at least one of a resource and timing information for communication between the apparatus and the further apparatus. Next, the apparatus determines a result of the random access procedure based at least in part on the control information.

    Use of wait period to obtain on-demand system information for wireless networks

    公开(公告)号:US10462706B2

    公开(公告)日:2019-10-29

    申请号:US15632220

    申请日:2017-06-23

    Abstract: According to an example implementation, a method may include transmitting, by a user device to a base station in a wireless network, a system information request for on-demand system information during a random access procedure, where the system information request is a request for one or more parameters that enable the user device to communicate in the wireless network, receiving, by the user device from the base station, an indication of a wait period in which the user device waits before obtaining the on-demand system information, waiting, by the user device, a time duration during the wait period, and monitoring, by the user device after expiration of the wait period, a system information window in which a system information message having the on-demand system information is broadcasted by the base station.

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