Feedback techniques for group-common PDCCH transmissions

    公开(公告)号:US11540266B2

    公开(公告)日:2022-12-27

    申请号:US17146328

    申请日:2021-01-11

    Abstract: A user equipment (UE) may receive a first group downlink control information transmission associated with a UE group, where the first group downlink control information transmission may reference a second group downlink control information transmission (e.g., according to a pre-notification indication). The UE may determine a feedback condition for the second group downlink control information transmission and monitor for the second group downlink control information transmission. Alternatively, the UE may receive a second group downlink control information transmission referencing the first group downlink control information transmission (e.g., according to a post-confirmation indication), and the UE may determine a feedback condition for the first group downlink control information transmission. Based on the feedback condition, the UE may transmit feedback information, for example, indicating that the UE did not correctly receive the indicated group downlink control information transmission.

    Beam recovery procedure using a second component carrier

    公开(公告)号:US11540150B2

    公开(公告)日:2022-12-27

    申请号:US16248523

    申请日:2019-01-15

    Abstract: Systems, methods, and apparatuses for performing a beam recovery procedure using a second CC are disclosed. A UE may perform a beam recovery procedure using two component carriers (CCs): for example, first component carrier may be a beam formed millimeter wave (MMW) carrier having a beam recovery procedure and second component carrier may be an assisting carrier such as a sub-6 GHz carrier or a different MMW carrier. In a first example, a UE may trigger beam recovery for first component carrier (on second component carrier), generate a beam measurement report, and transmit the beam report on resources allocated for uplink transmission on second component carrier. In a second example, a new scheduling request (SR) may be defined on first component carrier for second component carrier beam recovery. In a third example, RACH resources or procedures on second component carrier may be used to perform the beam recovery for first component carrier.

    Collision management
    393.
    发明授权

    公开(公告)号:US11497053B2

    公开(公告)日:2022-11-08

    申请号:US16443709

    申请日:2019-06-17

    Inventor: Linhai He

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a set of indicators indicating that a first transmission is scheduled for concurrent transmission with a second transmission, wherein the user equipment is not configured to transmit the first transmission and the second transmission concurrently. The user equipment may select one of the first transmission or the second transmission for transmission based at least in part on a characteristic of at least one of the first transmission or the second transmission identified using the set of indicators. The user equipment may transmit the selected one of the first transmission or the second transmission based at least in part on selecting the one of the first transmission or the second transmission. Numerous other aspects are provided.

    Physical resource and transmission parameter configuration without a radio resource control connection

    公开(公告)号:US11483855B2

    公开(公告)日:2022-10-25

    申请号:US17039982

    申请日:2020-09-30

    Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently signaling configurations of physical resources and transmission parameters to a user equipment (UE) for small data transmissions (for example, data transmissions in an inactive or idle state). A base station may broadcast or multicast downlink control information (DCI) in one or more control channels that schedules data transmissions in a set of data channels. The base station may then multicast one or more configurations in each of the data channels, and a UE may decode one of the data channels to determine a configuration for a small data transmission. Because the configurations may be transmitted in the data channels in addition to system information or paging information, a base station may have access to sufficient resources to provide suitable configurations to a UE for communications in an inactive or idle state.

    DUTY CYCLE CONFIGURATION FOR POWER SAVING

    公开(公告)号:US20220330153A1

    公开(公告)日:2022-10-13

    申请号:US17227148

    申请日:2021-04-09

    Abstract: Methods, systems, and devices for wireless communication are described related to a duty cycle configuration for power saving. A user equipment (UE) may receive control signaling indicating a duty cycle for cycling between a first power state associated with a first configuration and a second power state associated with a second configuration. In some examples, the first and second configurations may indicate a bandwidth part (BWP) configuration, restricted reception or transmission of one or more channels within the BWP configuration, or both for the UE. The UE may communicate first data traffic in accordance with the first configuration while operating in the first power state. The UE may transition from the first power state to the second power state in accordance with the duty cycle. The UE may communicate second data traffic in accordance with the second configuration while operating in the second power state.

    Configuration of a first message for a two-step random access channel procedure

    公开(公告)号:US11470651B2

    公开(公告)日:2022-10-11

    申请号:US17075653

    申请日:2020-10-20

    Abstract: A user equipment (UE) may be configured to receive configuration information from a base station, and the configuration information may indicate at least two different random access channel (RACH) request configuration parameters that each is associated with a respective radio resource control (RRC) state. The UE may be further configured to generate a first message associated with a two-step RACH procedure including a preamble and a payload, the payload including data on an uplink data channel and at least one reference signal. The UE may be further configured to transmit the first message to the base station using at least one of the at least two different RACH request configuration parameters that corresponds to an RRC state of the UE. The preamble may be transmitted on a first set of resources associated with a RACH occasion, and the payload may be transmitted on a second set of resources.

    Fallback procedures for two-step random access procedures

    公开(公告)号:US11432324B2

    公开(公告)日:2022-08-30

    申请号:US16778956

    申请日:2020-01-31

    Abstract: Fallback procedures for user equipments (UEs) are described that provide efficient fallback to a four-step random access procedure from a two-step random access procedure. For example, after transmitting a first message of a two-step random access procedure, a UE may start a fallback timer or counter and monitor for a second message of the two-step random access procedure for the duration of the fallback timer or counter. At the expiration of the fallback timer or counter, the UE may fall back to a four-step random access procedure. In some cases, the UE may transmit multiple repetitions of the first message and monitor for responses after transmitting the repetitions or after each repetition. Additionally or alternatively, the base station may transmit an explicit signal to the UE that may signal to the UE to perform a fallback procedure at a beginning or middle of a random access procedure.

    TECHNIQUES FOR ON-DEMAND TRANSMISSION OF DEDICATED REDUCED-BANDWIDTH SYSTEM INFORMATION

    公开(公告)号:US20220104094A1

    公开(公告)日:2022-03-31

    申请号:US17466972

    申请日:2021-09-03

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive a broadcast message from a base station, the broadcast message including an indication pertaining to system information for reduced-capability UEs including UEs with a bandwidth capability below a threshold, the UE being a reduced-capability UE. The UE may determine, based on the indication in the broadcast message, whether system information for reduced-capability UEs is scheduled to be broadcast by the base station. The UE may then obtain the system information for reduced-capability UEs in accordance with the indication in the broadcast message.

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