USING MEDIUM ACCESS CONTROL CONTROL ELEMENTS TO SCHEDULE SEMI-PERSISTENT SOUNDING REFERENCE SIGNALS FOR POSITIONING

    公开(公告)号:US20210242991A1

    公开(公告)日:2021-08-05

    申请号:US17164316

    申请日:2021-02-01

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a serving base station, a medium access control control element (MAC-CE) indicating activation or deactivation of a semi-persistent (SP) sounding reference signal (SRS)-for-positioning, wherein a reserved bit in the MAC-CE or a logical channel identifier (LCID) of a MAC subheader of the MAC-CE indicates the activation or deactivation of the SP SRS-for-positioning, and transmits the SP SRS-for-positioning on one or more SRS resources configured for the UE, the SP SRS-for-positioning having transmission parameters adopted from a spatial relation reference signal for the SP SRS-for-positioning.

    SYSTEMS AND ARCHITECTURES FOR SUPPORT OF HIGH-PERFORMANCE LOCATION IN A NEXT GENERATION RADIO ACCESS NETWORK

    公开(公告)号:US20200267508A1

    公开(公告)日:2020-08-20

    申请号:US16790705

    申请日:2020-02-13

    Abstract: A Location Management Component (LMC) may be included in a gNB and connected to a gNB Central Unit (gNB-CU). The gNB-CU receives location related messages from any of (i) a UE via a gNB Distributed Units (gNB-DU), (ii) another gNB via an Xn interface, or (iii) a core network entity (e.g. AMF) via an NG interface. These messages can be transported in container messages (e.g., an RRC container for LPP messages sent to or received from a UE; an NGAP container for messages sent to or received from an AMF, or an XnAP container for messages sent to or received from another gNB). The gNB-CU removes the location related messages from the container messages and forwards them to an LMC using F1-AP container messages. Location related messages sent from an LMC to other entities are transported in a reverse manner through a gNB-CU using corresponding container messages.

    SOUNDING REFERENCE SIGNAL (SRS) RESOURCE AND RESOURCE SET CONFIGURATIONS FOR POSITIONING

    公开(公告)号:US20200259683A1

    公开(公告)日:2020-08-13

    申请号:US16783129

    申请日:2020-02-05

    Abstract: Disclosed are techniques for using sounding reference signal (SRS) for positioning. In an aspect, a UE receives an SRS configuration, the SRS configuration defining one or more SRS resource sets, each SRS resource set comprising one or more SRS resources, and each SRS resource comprising one or more SRS ports, wherein at least one SRS port of at least one SRS resource of at least one SRS resource set defined in the SRS configuration is usable by the UE at least for positioning. The UE transmits a positioning SRS utilizing one or more positioning SRS ports, wherein the positioning SRS is transmitted in a positioning SRS pattern such that across N consecutive symbols, where N is greater than or equal to two, SRS resource elements (REs) to which the one or more positioning SRS ports are mapped are staggered in frequency and use each of the N consecutive symbols.

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