公开(公告)号：US20240007335A1

公开(公告)日：2024-01-04

申请号：US18467478

申请日：2023-09-14

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tamer Kadous ,  Yongbin Wei ,  Jing Sun ,  Andrei Dragos Radulescu

IPC: H04L27/26 ,  H04B1/7143 ,  H04B1/7156 ,  H04B1/7136

CPC classification number: H04L27/2602 ,  H04B1/7143 ,  H04B1/7156 ,  H04L27/2646 ,  H04B1/7136 ,  H04B2001/71365 ,  H04B2001/71563

Abstract: Techniques providing opportunistic frequency switching for frame based equipment (FBE), such as may be configured to minimize opportunistic frequency switching delay in FBE new radio (NR) unlicensed (NR-U) networks and/or to provide frequency diversity FBE access based on offset sequences of medium sensing occasions for the carrier frequencies are disclosed. Within the FBE mode network, a base station may configure a pattern of sensing locations in each frame for each frequency transmission unit of the plurality of frequency transmission units, wherein an inter-unit delay of sensing locations between a first frequency transmission unit and a next adjacent frequency transmission unit and between a last frequency transmission unit and the first frequency transmission unit is a fixed duration. Opportunistic frequency switching of embodiments may utilize the medium sensing locations for opportunistically switching between a sequence of the frequency transmission units for implementing frequency diversity FBE access.

公开(公告)号：US20230371085A1

公开(公告)日：2023-11-16

申请号：US18358450

申请日：2023-07-25

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Yongbin Wei

IPC: H04W74/08 ,  H04W16/14

CPC classification number: H04W74/0891 ,  H04W16/14

Abstract: Technology neutral coexistence and high priority traffic is disclosed for use in unlicensed frequency bands. Synchronization boundaries are defined in which synchronous contention windows across all radio access technologies attempting access to a shared communication channel occur periodically. Between the synchronous contention windows, the nodes may return to asynchronous access procedures. Such synchronous access procedures may be applicable to certain power classes or deployment type nodes. Additionally, various priority schemes for the synchronous contention window may be used to ensure protection of higher priority nodes or traffic, such as ultra-reliable low latency communication (URLLC) traffic. According to certain aspects, the deployment of such synchronous access methodology may be triggered via signaling from initiating devices. Additional aspects may provide for a technology neutral receiver protection mechanism by defining resources for protection signaling during receiver protection intervals between successive synchronous contention windows.

公开(公告)号：US11818802B2

公开(公告)日：2023-11-14

申请号：US17454989

申请日：2021-11-15

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Damnjanovic

IPC: H04W88/04 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0413 ,  H04L5/00 ,  H04W88/06 ,  H04L1/1812 ,  H04W92/10

CPC classification number: H04W88/04 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0413 ,  H04L5/0035 ,  H04W88/06 ,  H04L1/1812 ,  H04W92/10

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques performed at a user equipment (UE) provide for communicating directly with a base station using a first set of antennas and communicating indirectly with the base station (e.g., via a wireless node, a remote radio head, etc.) using a second set of antennas to fully exploit the potential capabilities of the physical antennas at the UE. For downlink communications, a UE may receive at least a subset of downlink signals from a base station via a wireless node, and, for uplink communications, the UE may transmit at least a subset of uplink signals to the base station via a wireless node. To facilitate these techniques, the UE may configure the wireless node to forward downlink signals received from the base station to the UE or to forward uplink signals received from the UE to the base station.

公开(公告)号：US11800412B2

公开(公告)日：2023-10-24

申请号：US17131379

申请日：2020-12-22

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Tao Luo ,  Junyi Li ,  Aleksandar Damnjanovic

IPC: H04W36/00 ,  H04W36/04 ,  H04W48/20

CPC classification number: H04W36/0058 ,  H04W36/00837 ,  H04W36/04 ,  H04W48/20

Abstract: This disclosure provides systems, methods and apparatuses for a transmission, from a user equipment (UE) to a first distributed unit (DU), of one or more measurement reports including channel measurements of a set of cells associated with a second DU of a same central unit (CU) as the first DU. The UE may transmit the one or more measurement reports according to various reporting format options, including via separate reports for activated and deactivated cells of the second DU, a joint report for activated and deactivated cells of the second DU, or a joint report across a set of DUs including the first DU. The measurement reports may include one or more metrics associated with each cell of a configured cell set and the UE and the DUs of the same CU may activate or deactivate one or more cells for communication with the UE based on the measurement reports.

公开(公告)号：US11799703B2

公开(公告)日：2023-10-24

申请号：US17453458

申请日：2021-11-03

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tamer Kadous ,  Yongbin Wei ,  Jing Sun ,  Andrei Dragos Radulescu

IPC: H04B1/7136 ,  H04B1/7143 ,  H04B1/7156 ,  H04L27/26

CPC classification number: H04L27/2602 ,  H04B1/7136 ,  H04B1/7143 ,  H04B1/7156 ,  H04L27/2646 ,  H04B2001/71365 ,  H04B2001/71563

Abstract: Techniques providing opportunistic frequency switching for frame based equipment (FBE), such as may be configured to minimize opportunistic frequency switching delay in FBE new radio (NR) unlicensed (NR-U) networks and/or to provide frequency diversity FBE access based on offset sequences of medium sensing occasions for the carrier frequencies are disclosed. Within the FBE mode network, a base station may configure a pattern of sensing locations in each frame for each frequency transmission unit of the plurality of frequency transmission units, wherein an inter-unit delay of sensing locations between a first frequency transmission unit and a next adjacent frequency transmission unit and between a last frequency transmission unit and the first frequency transmission unit is a fixed duration. Opportunistic frequency switching of embodiments may utilize the medium sensing locations for opportunistically switching between a sequence of the frequency transmission units for implementing frequency diversity FBE access.

公开(公告)号：US11706660B2

公开(公告)日：2023-07-18

申请号：US17301748

申请日：2021-04-13

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Tao Luo ,  Junyi Li ,  Juan Montojo ,  Sony Akkarakaran ,  Ozcan Ozturk ,  Aleksandar Damnjanovic

IPC: H04W28/02 ,  H04L12/24 ,  H04L41/0803 ,  H04W92/18

CPC classification number: H04W28/0278 ,  H04L41/0803 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive a configuration for buffer status reporting associated with a sidelink between the first UE and a second UE and a link between the first UE and a base station; generate a buffer status report (BSR) based at least in part on the configuration, wherein the BSR includes buffer reporting information for one or more logical channels on the sidelink between the first UE and the second UE, and buffer reporting information for one or more logical channels on the link between the first UE and the base station; and provide the BSR to the base station. Numerous other aspects are provided.

公开(公告)号：US11638308B2

公开(公告)日：2023-04-25

申请号：US17494160

申请日：2021-10-05

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Xiaoxia Zhang ,  Jing Sun ,  Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Ozcan Ozturk

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/00 ,  H04W56/00 ,  H04W76/11 ,  H04L1/1812 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. The method includes identifying that the user equipment (UE) is to use a two-step random access channel (RACH) procedure that includes a first message (e.g., uplink request message) and a second message (e.g., downlink response). The methods include sending, as a first message of the two-step RACH procedure, the uplink request message to a base station, receiving, from the base station, a physical downlink control channel comprising an indication of resources of a broadcast or multicast physical downlink shared channel on which the downlink response is to be received, and receiving the downlink response from the base station on the broadcast or multicast physical downlink shared channel. The physical downlink shared channel may be configured to provide downlink responses for one or multiple UEs.

公开(公告)号：US11632801B2

公开(公告)日：2023-04-18

申请号：US16582357

申请日：2019-09-25

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Srinivas Yerramalli ,  Jing Sun ,  Aleksandar Damnjanovic ,  Ozcan Ozturk ,  Tao Luo ,  Yongbin Wei

IPC: H04L12/00 ,  H04W74/08 ,  H04L27/26 ,  H04L5/00 ,  H04W72/0446 ,  H04W36/00 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify that the UE is configured to use a two-step random access channel (RACH) procedure. The two-step RACH procedure may include an uplink request message and a downlink response. The UE may transmit the uplink request message as part of the two-step RACH procedure, and the uplink request message may include a preamble portion that is one of a set of predefined sequences and a payload portion that includes a physical uplink shared channel waveform. The UE may receive the downlink response as part of the two-step RACH procedure and in response to the uplink request message.

公开(公告)号：US11582801B2

公开(公告)日：2023-02-14

申请号：US17117502

申请日：2020-12-10

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Aleksandar Damnjanovic ,  Jing Sun ,  Yongbin Wei

IPC: H04W74/08 ,  H04W72/04 ,  H04B1/713 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may perform a listen before talk (LBT) procedure on a channel bandwidth using an energy detection (ED) threshold. The ED threshold being associated with a transmission bandwidth that is narrower than the channel bandwidth. The wireless device may also, responsive to a successful LBT procedure, transmit on the transmission bandwidth according to a frequency hopping pattern during a first channel occupancy time (COT). The frequency hopping pattern comprises a first resource allocation and a second resource allocation different from the first resource allocation.

公开(公告)号：US11582800B2

公开(公告)日：2023-02-14

申请号：US17143825

申请日：2021-01-07

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Aleksandar Damnjanovic ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Rajat Prakash ,  Juan Montojo ,  Tao Luo ,  Peter Gaal

IPC: H04B7/00 ,  H04W74/08 ,  H04L5/16 ,  H04W72/04 ,  H04W72/044

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an adjusted contention window size for a listen-before-talk (LBT) procedure that increases channel access time fairness between a plurality of different groups of UEs. The UE may determine, via the LBT procedure, that a channel is idle based at least in part on the adjusted contention window size. The UE may transmit, to other UEs in a group of UEs that includes the UE, control information that enables a group channel occupancy time (COT) associated with the channel to be shared with the other UEs in the group of UEs. Numerous other aspects are described.