公开(公告)号：US20220109536A1

公开(公告)日：2022-04-07

申请号：US17430619

申请日：2020-02-17

Applicant: Apple Inc.

Inventor： Hassan GHOZLAN ,  Dawei YING ,  Qian LI ,  Geng WU

IPC: H04L5/00 ,  H04W12/122

Abstract: Disclosed herein are system, method, and computer program product embodiments verifying legitimate victim-aggressor pairs in remote interference management operation. In an embodiment, a first even report is generated by a victim base station based detection of an atmospheric duct and it transmits a victim reference signal with the first event report. The first event report includes an ID of the victim base station. An aggressor base station is triggered to begin monitoring for transmission of the victim reference signal. The aggressor base station sends a second event report if it detects the victim reference signal. The central entity tries to verify that the victim and aggressor are legitimate. If the verification passes, then the central entity sends a message to the aggressor to start of remote interference mitigation. If verification fails, the remote interference mitigation is not triggered and the victim reference signal is ignored.

公开(公告)号：US20220103333A1

公开(公告)日：2022-03-31

申请号：US17422002

申请日：2020-01-10

Applicant: Apple Inc.

Inventor： Hassan GHOZLAN ,  Dawei YING ,  Qian LI ,  Geng WU

IPC: H04L5/14

Abstract: In NR networks with dynamic TDD operation, two types of cross-link interference (CLI) arise: UE-to-UE and TRP-to-TRP. UE-to-UE CLI measurement and reporting can assist the network in managing CLI. The problem is that, for a cell to be able to measure the CLI reference signal transmitted by UEs in another neighboring cell, the cell needs to know what CLI-RS transmission resources assigned to the UEs in the neighboring cells. Embodiments of the present disclosure provide systems and methods for the exchange of such information between cells. In some embodiments, for example, a gNB sends a request message to a neighboring gNB and the neighboring gNB sends back a response message that includes TDD DL/UL Configurations of its cells and a list of the resources assigned to its UEs for transmission of UE-to-UE CLI reference signal.

公开(公告)号：US20220103265A1

公开(公告)日：2022-03-31

申请号：US17426947

申请日：2020-02-16

Applicant: Apple Inc.

Inventor： Hassan GHOZLAN ,  Dawei YING ,  Qian LI ,  Geng WU

IPC: H04B15/00 ,  H04B7/24

Abstract: An approach is described for a method for a base station in a fifth generation (5G) wireless communication or a new radio (NR) system that includes the following steps. The method includes determining base initial seeds and a time parameter. The method further includes generating actual initial seeds based on the base initial seeds and the time parameter; generating a Pseudo-Noise (PN) sequence based on one of the actual initial seeds; and generating a remote interference management reference signal (RIM-RS) sequence based on the PN sequence. The method further includes transmitting the RIM-RS sequence to a remote base station.

公开(公告)号：US20220086897A1

公开(公告)日：2022-03-17

申请号：US17419506

申请日：2020-01-10

Applicant: Apple Inc.

Inventor： Lili WEI ,  Dawei YING ,  Qian LI ,  Daewon LEE ,  Geng WU

IPC: H04W74/00 ,  H04W74/08

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for use in a wireless network for random access channel (RACH) resource coordination. Some embodiments are directed to an apparatus in an Integrated Access and Backhaul (IAB) network. The apparatus includes processor circuitry and radio front circuitry. The radio front end circuitry can be configured to receive random access channel (RACH) resource configuration for communicating with a parent node and a child node. The processor circuitry can be configured to determine, based on the RACH resource configuration, a first RACH resource for communicating, in a half-duplex mode, with the parent node. The processor circuitry can be further configured to determine, based on the RACH resource configuration, a second RACH resource for communicating, in the half-duplex mode, with the child node, where the second RACH resource is orthogonal to the first RACH resource.

公开(公告)号：US20220086843A1

公开(公告)日：2022-03-17

申请号：US17419605

申请日：2020-02-11

Applicant: Apple Inc.

Inventor： Dawei YING ,  Hassan GHOZLAN ,  Qian LI ,  Daewon LEE ,  Geng WU

IPC: H04W72/08 ,  H04W72/04 ,  H04W24/10 ,  H04B17/318

Abstract: Provided herein are systems and methods of configuring received signal strength indicator (RSSI) measurements to determine crosslink interferences (CLI). For instance, a user equipment (UE) can receive, using radio front-end circuitry, a RSSI resource configuration for CLI measurement from a base station in a 5G network. The UE can then measure a RSSI of one or more received signals based at least in part on the RSSI resource configuration. The UE can then perform one or more CLI measurements based at least in part on the measured RSSI. The RSSI resource configuration includes an identifier information element (IE), one or more slot-level indication IEs, one or more symbol-level indication IEs, one or more physical resource block (PRB)-level indication IEs, one or more resource element (RE) pattern indication IEs, and one or more receive beam indication IEs.

公开(公告)号：US20220060277A1

公开(公告)日：2022-02-24

申请号：US17414039

申请日：2020-01-08

Applicant: Apple Inc.

Inventor： Lili WEI ,  Qian LI ,  Dawei YING ,  Gang XIONG ,  Debdeep CHATTERJEE ,  Geng WU

IPC: H04L1/00 ,  H04L5/00 ,  H04W88/14 ,  H04W72/04

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for use in a wireless network for dynamic indication of soft resource availability. Some embodiments are directed to an apparatus in an Integrated Access and Backhaul (IAB) node. The apparatus includes processor circuitry and radio front circuitry. The radio front end circuitry can be configured to receive, from a second IAB node, a slot format indicator (SFI). The SFI can include a slot format entry including a soft symbol indicating availability of a soft resource. The processor circuitry can be configured to use the slot format entry to communicate with a third IAB node, different from the second IAB node, using the soft resource as indicated by the soft symbol.

公开(公告)号：US20210400660A1

公开(公告)日：2021-12-23

申请号：US17289776

申请日：2019-11-13

Applicant: Apple Inc.

Inventor： Lili WEI ,  Dawei YING ,  Qian LI ,  Geng WU

IPC: H04W72/04 ,  H04W80/02 ,  H04W88/14

Abstract: An apparatus of an Integrated Access and Backhaul (IAB) node includes processing circuitry coupled to a memory. To configure the IAB node for time-domain resource management within an IAB network, the processing circuitry is to detect that a time-domain resource assigned to a child communication link of the IAB node is available. An uplink message is encoded for transmission by a mobile terminal (MT) function of the IAB node to a parent IAB node. The uplink message indicates availability of the time-domain resource for a parent backhaul link between the IAB node and the parent IAB node. A downlink message from the parent IAB node is decoded. The downlink message is received via the parent backhaul link and using the time-domain resource.

公开(公告)号：US20210352666A1

公开(公告)日：2021-11-11

申请号：US17286631

申请日：2019-10-29

Applicant: Apple Inc.

Inventor： Alexander SIROTKIN ,  Qian LI ,  Lili WEI ,  Dawei YING ,  Geng WU ,  Jaemin HAN ,  Murali NARASIMHA ,  Youn Hyoung HEO ,  Sudeep K. PALAT

IPC: H04W72/04

Abstract: Embodiments of an integrated access and backhaul (IAB) donor, IAB node, and methods of communication are generally described herein. An IAB network may comprise a plurality of IAB nodes to operate as relays between the IAB donor and one or more User Equipment (UE). The IAB donor may, for each of the IAB nodes, allocate a plurality of subframes to the IAB node. Each allocated subframe may have a subframe type that is one of: a downlink subframe, an uplink subframe, a flexible subframe or a not available subframe. The IAB donor may transmit, from a central unit (CU) of the IAB donor to a distributed unit (DU) an IAB node over an F1 interface, a resource coordination request message that indicates the subframe types of the plurality of subframes.

公开(公告)号：US20210345279A1

公开(公告)日：2021-11-04

申请号：US17286217

申请日：2019-10-24

Applicant: Apple Inc.

Inventor： Dawei YING ,  Geng WU ,  Lili WEI ,  Qian LI

IPC: H04W56/00 ,  H04W74/08

Abstract: Embodiments of an integrated access and backhaul (IAB) node, a User Equipment (UE), and methods of communication are generally described herein. An IAB node may operate as a relay between an IAB donor and a UE. The IAB node may receive, from the IAB donor, first signaling that indicates a first timing advance (TA) offset between the IAB donor and the IAB node. The IAB node may determine a second TA offset between the IAB node and the UE. The second TA offset may be based on a timing difference between a transmission time of a downlink frame transmitted to the UE and a reception time of an uplink frame from the UE. The IAB node may transmit, to the UE, second signaling that indicates the first TA offset and the second TA offset.