CHANNEL ACCESS FOR UNLICENSED SPECTRUM IN MMW OPERATION

    公开(公告)号:WO2021034628A1

    公开(公告)日:2021-02-25

    申请号:PCT/US2020/046270

    申请日:2020-08-14

    Abstract: The present application at least describes a method for obtaining channel access in a network. The method includes a step of selecting, via a gNodeB, a spatial filter from a first set of spatial filters to perform listen before talk (LBT). The method includes a step of detecting, via the gNodeB, a channel in an idle state,. The method also includes a step of obtaining, a directional channel occupancy time (COT) in the channel in a direction of the selected spatial filter. The method also includes a step of transmitting, to a node, a channel access indicator transmission (CAI-T) on a beam in the cot via a spatial filter of a second set of spatial filters. The method further includes a step of receiving, from the node, a channel access indicator response (CAI-R). The method further includes a step of sensing, via short channel sensing and via the spatial filter or another spatial filter of the second set of spatial filters, the channel is clear. The method even further includes a step of sending, via the channel, information to the node using one or more spatial filters of the second set of spatial filters. Other embodiments of this aspect include corresponding computer systems, apparatus, and computer programs recorded on one or more computer storage devices, each configured to perform the actions of the methods.

    UCI DESIGN FOR UL TRANSMISSION WITH CONFIGURED GRANT

    公开(公告)号:WO2020033711A1

    公开(公告)日:2020-02-13

    申请号:PCT/US2019/045738

    申请日:2019-08-08

    Abstract: Methods and apparatuses are described herein for uplink control information (UCI) design for uplink (UL) transmission with configured grants. In accordance with one embodiment, a wireless communications device may receive, from a gNB, first information indicating a plurality of resources for a configured grant (CG) on a physical uplink shared channel (PUSCH). The wireless communications device may determine, based on second information, a portion of the plurality of resources to use for transmitting a configured grant-uplink control information (CG-UCI). The wireless communications device may generate the CG-UCI, wherein the CG-UCI comprises at least one of: an identifier associated with the wireless communications device or an indication of a modulation and coding scheme (MCS). The wireless communications device may transmit, to the gNB on the PUSCH, the CG-UCI using the determined portion of the plurality of resources.

    SUPERFRAME STRUCTURE AND PAGING OPERATIONS IN NEW RADIO

    公开(公告)号:WO2018175840A1

    公开(公告)日:2018-09-27

    申请号:PCT/US2018/023937

    申请日:2018-03-23

    Abstract: The present application is at least directed to a non-transitory memory including instructions stored thereon for paging in a beam sweeping superframe. The beam sweeping superframe including a paging frame. The paging frame including a paging burst and the paging burst including symbols. One of the symbols relates to a paging occasion. A processor is operably coupled to the non-transitory memory. The processor is capable of executing instructions that cause the apparatus to transmit, to a first user equipment, a first paging indication carried on the paging occasion at a first beam. The processor is also capable of executing instructions that cause the apparatus to transmit, to a second user equipment, a second paging indication carried on the paging occasion at a second beam, where the second beam is different from the first beam. The application is also directed to an apparatus that pages in a beam sweeping superframe in new radio.

    FRAME BASED EQUIPMENT AND LOAD BASED EQUIPMENT MODES SWITCHING IN UNREGULATED NEW RADIO

    公开(公告)号:WO2021067719A1

    公开(公告)日:2021-04-08

    申请号:PCT/US2020/053969

    申请日:2020-10-02

    Abstract: A wireless device, such as user equipment (UE) or other apparatus, like may use a transparent mode operation in which the device is not aware of the operation mode of a base station, such as a gNB or other transmission and receive point (TRP), via the use of configurations for Frame Based Equipment (FBE) and Load Based Equipment (LBE) operating modes. A base station may initiate a Channel Occupancy Time (COT) that is an FBE COT or an LBE COT, in which the wireless device follows FBE or LBE procedures accordingly. A variety of criteria may be applied in determining whether to use FBE or LBE procedures, and to switch between them. A network may use indicate the intention to switch operation mode and may do so via implicit or explicit indications. Similarly, a wireless device may autonomously switch operation mode, and may indicate the selected mode to the network.

    BEAM FAILURE RECOVERY IN NEW RADIO UNLICENSED SPECTRUM

    公开(公告)号:WO2019217880A1

    公开(公告)日:2019-11-14

    申请号:PCT/US2019/031811

    申请日:2019-05-10

    Abstract: Beam failure recovery may be improved via the use enhanced signaling, counters, and windowing. Signaling may include a beam failure reference signal (BFRS) detection signal, which indicates that an access point (e.g., gNB) has acquired a channel for downlink transmission. Based on the BFRS detection signal, a wireless terminal (e.g., UE) may then monitor a gNB downlink transmission during a maximum channel occupancy time (MCOT). The UE may count missed beam failure reference signal instances and report the count, e.g., via higher layer signaling. Signaling may include a BFRS absence indication reflecting an instance of a BFRS that is not transmitted due to channel unavailability. The UE may then exclude the instance of the BFRS from the count. Signaling may include a gNB response detection signal, which may inform the UE to monitor a gNB downlink transmission. The UE may trigger timer after receiving an access gNB response detection signal.

    MECHANISM FOR SSB TRANSMISSION IN NR-U
    9.
    发明申请

    公开(公告)号:WO2019217697A1

    公开(公告)日:2019-11-14

    申请号:PCT/US2019/031545

    申请日:2019-05-09

    Abstract: The present application is directed to an apparatus including a non-transitory memory including instructions stored thereon for monitoring synchronous signals and physical broadcast channels (SSBs) from a network node. The apparatus also includes a processor, operably coupled to the non-transitory memory, configured to execute a set of instructions. The instructions include configuring the apparatus for a STTC (SSB Transmission Timing Configuration). The instructions also include monitoring the STTC for the SSBs. The instructions further include determining a first one of the SSBs in a first slot of a subframe in a scheduled SSB transmission in the STTC has been transmitted at a first scheduled location, where the transmission of the first one of the SSBs is based upon confirmation of a successful Listen Before Talk (LBT) available channel prior to the scheduled SSB transmission in the STTC. The instructions even further include determining a second one of the SSBs in the scheduled SSB transmission in the STTC successfully or failed to transmit at a second scheduled location. The instructions yet even further include observing transmission of the second one of the SSBs in the first slot or a second slot.

    MULTIPLE TRPS AND PANELS TRANSMISSION WITH DYNAMIC BANDWIDTH FOR NR

    公开(公告)号:WO2019051177A1

    公开(公告)日:2019-03-14

    申请号:PCT/US2018/049879

    申请日:2018-09-07

    Abstract: The present application is at least directed to an apparatus on a network including a non-transitory memory including instructions stored thereon for re-establishing a remote radio control (RRC) connection with a base station. The apparatus also includes a processor, operably coupled to the non-transitory memory, capable of executing an instruction of determining a radio link failure has occurred between a first bandwidth part (BWP) of the apparatus tuned to a base station. The processor also executes the instruction of initiating a random access (RA) procedure. The processor also executes the instruction of determining whether a configured contention-based physical random access channel (PRACH) resource overlaps with the first BWP. The process further executes the instruction of transmitting a RA preamble including the configured contention-based PRACH resource to the base station. The processor even further executes the instruction of receiving a RA response from the base station.

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