Cell reselection race condition handling and reduction in unnecessary cell reselections

    公开(公告)号:US10912002B2

    公开(公告)日:2021-02-02

    申请号:US16374673

    申请日:2019-04-03

    Abstract: Wireless communications systems and methods related to improving user equipment (UE) mobility performance are provided. A wireless communication device camps on a first cell operating on a first carrier frequency. The wireless communication device receives, from the first cell, cell selection priority information indicating a priority for each of a plurality of carrier frequencies. The wireless communication device evaluates each of two or more candidate cells over an evaluation time duration associated with each candidate cell, wherein an end time of the evaluation time duration of a candidate cell associated with a lower priority carrier frequency is configured to be after an end time of the evaluation time duration of a candidate cell associated with a higher priority carrier frequency. The first wireless communication device selects a second cell from the two or more candidate cells for camping based at least in part on the evaluation of the second cell.

    Methods and apparatus for mitigating co-existence issues in communication systems

    公开(公告)号:US10893453B2

    公开(公告)日:2021-01-12

    申请号:US16057325

    申请日:2018-08-07

    Abstract: Methods, systems, and devices for wireless communications are described. One method may include a wireless communications device determining an inter-modulation distortion value between simultaneous communications on a first configuration of a first radio access network and a second configuration of a second radio access network, and dynamically switching between a non-standalone mode and a standalone mode of operation, based on the inter-modulation distortion value and a quality of service requirement for the standalone mode. The wireless communications device may also provide for time division multiplexing communications on a first RAT and a second RAT wherein only the first or second RAT is active during a period of time, and wherein the first RAT is an anchor for the second RAT.

    Techniques for buffer status report and scheduling request in new radio

    公开(公告)号:US10764775B2

    公开(公告)日:2020-09-01

    申请号:US15923669

    申请日:2018-03-16

    Abstract: Various techniques are proposed to enhance or expand the capabilities or usage of buffer status request (BSR) and scheduling request (SR) in new radio (NR) applications. In an implementation, techniques are proposed to extend the SR in long term evolution (LTE) baseline with additional information to help a base station (e.g., gNB) schedule faster and more efficiently. Moreover, a new BSR triggering condition is proposed to report new data based on particular events instead of being time-based. Modifications being proposed to both BSR and SR can be customized for different numerologies/transmission time intervals (TTIs). Modifications being proposed to SR can also be used to indicate a user equipment (UE) new beam selection after recovering from a beam failure.

    Dual connectivity reporting of a change in user equipment measurement capability

    公开(公告)号:US10757567B2

    公开(公告)日:2020-08-25

    申请号:US16144966

    申请日:2018-09-27

    Abstract: Aspects of the disclosure relate to dual connectivity reporting. In one example, a dual connectivity communication is established, which includes a communication with a master node according to a first radio access technology (RAT), and a communication with a secondary node according to a second RAT. A change in measurement capability is then detected, and subsequently reported to the master node and/or secondary node. In another example, a scheduling entity establishes a first or second communication of a dual connectivity communication with a scheduled entity. The first communication is established according to a first RAT when operating as a master node, and the second communication is established according to a second RAT when operating as a secondary node. An indication is then received from the scheduled entity of a change in measurement capability, and the first and/or second communications are reconfigured in response to the change in measurement capability.

    INTEGRITY PROTECTION AT PACKET DATA CONVERGENCE PROTOCOL LAYER

    公开(公告)号:US20200169916A1

    公开(公告)日:2020-05-28

    申请号:US16680394

    申请日:2019-11-11

    Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may associate, at a first protocol layer, a first sequence number to a data packet to perform integrity protection on at least a portion of the data packet. The transmitting device may associate, at the first protocol layer, a second sequence number to the data packet for wireless transmission to a receiving device. The transmitting device may indicate an offset between the first sequence number and the second sequence number in the data packet. The transmitting device may transmit the data packet to a second protocol layer for wireless transmission to the receiving device, the second protocol layer being a lower layer than the first protocol layer.

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