Method for interference measurement in new radio (NR) communication systems

    公开(公告)号:US11303367B2

    公开(公告)日:2022-04-12

    申请号:US16488039

    申请日:2018-03-22

    Applicant: Apple Inc.

    Abstract: An apparatus configured to be employed in a victim transmission reception point (TRP) associated with a new radio (NR) communication system is disclosed. The apparatus comprises a memory interface and a processing circuit. In some embodiments, the processing circuit is configured to process one or more predefined interference signals respectively received from one or more interfering TRPs during a guard period of the victim TRP. In some embodiments, the guard period comprises a time period between a downlink (DL) transmission and an uplink (UL) transmission associated with a time division duplex (TDD) frame of the victim TRP. In some embodiments, the processing circuit is further configured to determine an inter-TRP interference based on the one or more predefined interference signals. In some embodiments, the inter-TRP interference comprises a measurement of a UL interference at the victim TRP from the one or more interfering TRPs.

    Signaling methods for semi-static resource configurations in integrated access and backhaul

    公开(公告)号:US12096405B2

    公开(公告)日:2024-09-17

    申请号:US17420495

    申请日:2020-01-07

    Applicant: Apple Inc.

    CPC classification number: H04W72/04 H04L5/14

    Abstract: Some embodiments of this disclosure include apparatuses and methods for providing semi-static integrated access backhaul (IAB) resource configurations in an IAB network. For instance, a central unit (CU) of an IAB donor can provide, to a distributed unit (DU) of an IAB node, F1 application protocol (F1AP) signaling data indicative of a semi-static IAB resource configuration regarding at least one of downlink resources, uplink resources, or flexible resources. The semi-static IAB resource configuration indicates whether the at least one of downlink resources, uplink resources, or flexible resources are hard resources, soft resources, or not available resources. The CU can further provide, to a mobile termination (MT) of the IAB node, radio resource control (RRC) signaling data indicative of the semi-static IAB resource configuration.

    Secondary physical random access channel (PRACH) configuration for contention based random access in new radio systems

    公开(公告)号:US12069730B2

    公开(公告)日:2024-08-20

    申请号:US17286548

    申请日:2019-10-30

    Applicant: Apple Inc.

    CPC classification number: H04W74/0833 H04W74/006 H04W74/008

    Abstract: A device of a New Radio (NR) evolved Node B (gNodeB), a method and a machine readable medium to implement the method. The method includes: processing a first signal sent by a NR evolved NodeB (gNodeB) regarding a primary physical random access channel (PRACH) configuration to be used to encode for transmission a first communication to the gNodeB; processing a second signal sent by the gNodeB regarding a secondary PRACH configuration different from the primary PRACH configuration and to be used to encode for transmission a second communication to the gNodeB; determining the primary PRACH configuration from the first signal and the secondary PRACH from the second signal; and switching from the primary PRACH configuration to the secondary PRACH configuration and encode for transmission the second communication to the gNodeB based on the secondary PRACH configuration.

    Method for measurement of UE-to-UE reference signal in new radio networks with cross-link interference

    公开(公告)号:US12068796B2

    公开(公告)日:2024-08-20

    申请号:US17422109

    申请日:2020-01-13

    Applicant: Apple Inc.

    CPC classification number: H04B17/318 H04L5/0048

    Abstract: Apparatuses, methods, and computer-readable media are provided for determination of reference signal received power (RSRP) to estimate cross-link interference. The approach uses a received signal from a second UE and downlink (DL) timing information from a transmission reception point (TRP). The approach generates a corrected timing signal based on the received signal, the DL timing information and a reference sequence, and then extracts a symbol from the received signal and the corrected timing signal. The approach then transforms using a fast Fourier transform (FFT) circuit the symbol, and then cross-correlates with a reference sequence to generate a correlation result from which the RSRP is estimated.

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