公开(公告)号：US12035345B2

公开(公告)日：2024-07-09

申请号：US17423619

申请日：2020-01-23

Applicant: Apple Inc.

Inventor： Dawei Ying ,  Hassan Ghozlan ,  Qian Li ,  Geng Wu

IPC: H04W72/12 ,  H04J11/00 ,  H04L5/00 ,  H04W72/1273 ,  H04W72/542

CPC classification number: H04W72/542 ,  H04J11/0036 ,  H04L5/0048 ,  H04W72/1273

Abstract: Embodiments of this disclosure include apparatuses and methods for data channel mapping type and demodulation reference signal (DM-RS) configuration to enable a physical layer (L1) crosslink interference (CLI) measurement and reporting. Some embodiments are direct to a method of operating a base station (BS), where the method can include generating, by the BS, a demodulation reference signal (DM-RS), determining, by the BS, a position of the DM-RS in a first transmission slot, transmitting, by the BS, the DM-RS to a UE based on the determined position in the first transmission slot, processing, by the BS, a crosslink interference (CLI) measurement fed back based on the DM-RS, wherein the CLI measurement fed back is in a channel state information (CSI) report, and performing, by the BS, a CLI mitigation based on the CLI measurement.

公开(公告)号：US11855763B2

公开(公告)日：2023-12-26

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

CPC classification number: H04L5/1461

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：US11799564B2

公开(公告)日：2023-10-24

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 ,  H04W88/08

CPC classification number: H04B15/00 ,  H04B7/24 ,  H04W88/08

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：US20220104214A1

公开(公告)日：2022-03-31

申请号：US17423619

申请日：2020-01-23

Applicant: Apple Inc.

Inventor： DAWEI YING ,  Hassan Ghozlan ,  Qian Li ,  Geng Wu

IPC: H04W72/12 ,  H04L5/00 ,  H04J11/00

Abstract: Embodiments of this disclosure include apparatuses and methods for data channel mapping type and demodulation reference signal (DM-RS) configuration to enable a physical layer (L1) crosslink interference (CLI) measurement and reporting. Some embodiments are direct to a method of operating a base station (BS), where the method can include generating, by the BS, a demodulation reference signal (DM-RS), determining, by the BS, a position of the DM-RS in a first transmission slot, transmitting, by the BS, the DM-RS to a UE based on the determined position in the first transmission slot, processing, by the BS, a crosslink interference (CLI) measurement fed back based on the DM-RS, wherein the CLI measurement fed back is in a channel state information (CSI) report, and performing, by the BS, a CLI mitigation based on the CLI measurement.

公开(公告)号：US10749635B2

公开(公告)日：2020-08-18

申请号：US16079617

申请日：2016-10-31

Applicant: Apple Inc.

Inventor： Qian Li ,  Guangjie Li ,  Geng Wu ,  Xiaoyun May Wu ,  Joonbeom Kim ,  Hassan Ghozlan ,  Dawei Ying ,  Vesh Raj Sharma Banjade ,  Satish Chandra Jha ,  Yaser M. Fouad ,  Lu Lu

IPC: H04L1/16 ,  H04W72/04 ,  H04W74/08

Abstract: Embodiments of a system and method for random access and scheduling request for new radio things sidelink are generally described herein. In some embodiments, a nUE (network user equipment) schedules a RA (random access) resource in a control channel. The nUE decodes a TAS (transmitter resource acquisition and sounding) payload, received from a wUE (wearable user equipment) in a PRB (physical resource block) addressed to a RA-ID (random access identifier) associated with the nUE. The nUE encodes, in response to decoding the TAS payload, a RAS (receiver resource acknowledgement and sounding) payload in the PRB. The nUE decodes initial access content received via a data channel from the wUE, the initial access content including a pro posed temp ID (temporary identifier) for addressing the wUE. The nUE encode, in response to the initial access content, an ACK (acknowledgement), addressed to the wUE, to accept initial access of the wUE.

公开(公告)号：US20200213052A1

公开(公告)日：2020-07-02

申请号：US16637936

申请日：2018-08-09

Applicant: Apple Inc.

Inventor： Qian Li ,  Dae Won Lee ,  Dawei Ying ,  Song Noh ,  Hassan Ghozlan ,  Geng Wu ,  Honglei Miao

IPC: H04L5/00 ,  H04W72/04 ,  H04W24/10

Abstract: Examples provide a mobile communication system, a mobile device, user equipment, a network node, a NodeB, circuits, apparatuses, methods, machine readable media and computer programs for mobile device, user equipment, network nodes, NodeBs. An apparatus (10) for a user equipment, UE (100), configured to communicate in a mobile communication system (400) comprises one or more interfaces (12) configured to communicate within the mobile communication system (400). The apparatus (10) comprises a control module (14) configured to control the one or more interfaces (12). Then control module (14) is configured to process reference signal configuration information received by the one or more interfaces (12). The reference signal configuration information comprises information on a reference signal radio configuration information resource, the reference signal radio resource specifying at least one reference signal from a group of two or more reference signals. The two or more reference signals differ in at least one element of the group of a time-frequency resource, a sequence, and a cyclic shift. The control module (14) is configured to enable measurements based on the at least one reference signal.