USER EQUIPMENT-TRIGGERED LOWER LAYER-BASED HANDOVER

    公开(公告)号:WO2021227048A1

    公开(公告)日:2021-11-18

    申请号:PCT/CN2020/090620

    申请日:2020-05-15

    Abstract: Performing a UE-triggered lower layer-based handover may include, based on measurements associated with both a source gNB and a target gNB, determining that a UE-triggered handover utilizing layer 1 or layer 2 is to be performed. First uplink resources configured by the source gNB for a dedicated scheduling request may be determined. The dedicated scheduling request may be generated at the UE to request second uplink resources from the gNB for a physical uplink shared channel (PUSCH) a handover request in a media access control (MAC) control element (CE). The handover request carried by the MAC CE for the source gNB may be generated. In response to the handover request, a handover command from the source gNB associated with performing a handover procedure from the source gNB to the target gNB may be processed.

    CONFIGURABLE UPLINK TRANSMISSION IN WIRELESS COMMUNICATION

    公开(公告)号:WO2021226995A1

    公开(公告)日:2021-11-18

    申请号:PCT/CN2020/090475

    申请日:2020-05-15

    Abstract: A user equipment (UE), or other network component can operate to configure different sets of resources for an uplink (UL) physical channel for an uplink (UL) -to-downlink (DL) channel occupancy time (COT) sharing to coexist with another radio access technology (RAT). An energy detection (ED) threshold can be selected from the different sets of resource configurations for an UL transmission based on one or more conditions. A gap can be configured between a physical random access control channel (PRACH) transmission and a PUSCH transmission based on one of at least a first value associated with a numerology between the PRACH and the PUSCH and a second value greater than the first value. The UL transmission can be provided based on the ED threshold or the configured conditional gap via the UL physical channel.

    CHANNEL STATE INFORMATION REPORT FOR MULTI-TRP OPERATION

    公开(公告)号:WO2021226964A1

    公开(公告)日:2021-11-18

    申请号:PCT/CN2020/090360

    申请日:2020-05-14

    Abstract: Various manners of reporting channel state information (CSI) measurements in a multiple transmission and reception point (multi-TRP) configuration are provided. A UE may perform channel state information (CSI) measurements for a channel measurement resource (CMR) for the first gNB and at least one interference measurement resource (IMR) for the at least one second gNB, determine a configuration for a CSI report for the CSI measurements including a channel quality indicator (CQI) measurement for the CMR and the at least one IMR and transmit the CSI report to at least one of the first gNB and the at least one second gNB.

    SYSTEM AND METHOD FOR PHASE NOISE REDUCTION IN VERY HIGH FREQUENCY SPECTRUM

    公开(公告)号:WO2021226943A1

    公开(公告)日:2021-11-18

    申请号:PCT/CN2020/090288

    申请日:2020-05-14

    Abstract: Various techniques are presented to improve phase tracking reference signal (PTRS) performance with respect to very high frequency communications. According to some embodiments, increased power boosting may be applied to improve PTRS performance, while still keeping power spectral density (PSD) within ETSI Broadband Radio Access Networks (BRAN) limits. In some cases, the power boosting may be semi-static and/or dynamic. In other embodiments, the improved performance may be achieved by dynamically changing time and/or frequency density of the PTRS. In other embodiments, a multi-port configuration may be used for the downlink PTRS. In other embodiments, one or more PTRS configurations may be determined per SCS and/or frequency band, e.g., based on traffic type, channel priority, parameters signaled in the slot format indication (SFI), etc. In other embodiments, common phase error (CPE) estimates may be obtained for those OFDM symbols without PTRS by interpolating the available PTRS estimates in the time domain.

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