公开(公告)号：US20220216962A1

公开(公告)日：2022-07-07

申请号：US17143982

申请日：2021-01-07

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun ,  Yisheng Xue ,  Tao Luo ,  Juan Montojo

IPC: H04L5/00 ,  H04W76/14 ,  H04W16/14 ,  H04W72/04 ,  H04W52/22

Abstract: Methods, systems, and devices for wireless communications are described. An access point (AP) may configure power parameters for sidelink communications between user equipments (UEs). The power parameters may be configured based on the UEs operating within an AP service area. In some examples, an AP may transmit one or more signals to the first UE, and the first UE may determine the power parameters based on receiving the signals. Additionally or alternatively, the first UE may be configured to transmit one or more reference signals to the AP, and the AP may configure the power parameters based on receiving the reference signals. The first AP may indicate the power parameters in a sidelink configuration transmitted to the first UE. The first UE may communicate with the second UE on a sidelink channel in accordance with the sidelink configuration, which may improve efficiency and reliability of the sidelink communications.

公开(公告)号：US11382027B2

公开(公告)日：2022-07-05

申请号：US16947788

申请日：2020-08-17

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Srinivas Yerramalli ,  Andrei Dragos Radulescu ,  Xiaoxia Zhang

IPC: H04W48/16 ,  H04W76/34 ,  H04W76/11 ,  H04W36/36 ,  H04W48/10 ,  H04W48/20 ,  H04W88/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a remote radio head may transmit, during a user equipment (UE) RRH discovery procedure with a UE, an RRH identifier to the UE for reporting to a base station (BS) associated with the RRH and the UE; receive, from the BS, communication configuration information based at least in part on transmitting the RRH identifier, wherein the communication configuration information includes at least one of scheduling information or configuration information; and communicate with the UE in accordance with the communication configuration information. Numerous other aspects are provided.

公开(公告)号：US20220182894A1

公开(公告)日：2022-06-09

申请号：US17112931

申请日：2020-12-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W36/00 ,  H04W36/08

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for using layer one (L1) or layer two (L2) signaling to indicate a primary cell (PCell) or primary secondary cell (PSCell) to a user equipment (UE). The use of L1 or L2 signaling to indicate a PCell or PSCell may be referred to as L1 or L2 mobility and may lower the latency at the UE associated with transitioning to communicating with the PCell or PSCell. A UE may receive radio resource control (RRC) signaling from a base station indicating a set of cells configured for L1 or L2 mobility and indicating a list of candidate cells for a PCell or PSCell. The UE may then receive L1/L2 signaling from the base station identifying the PCell or indicating activation of the PSCell.

公开(公告)号：US20220159499A1

公开(公告)日：2022-05-19

申请号：US17649765

申请日：2022-02-02

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Jing Sun ,  Yongbin Wei

IPC: H04W24/10 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

Abstract: Uplink clear channel assessment (CCA) status is disclosed as a new uplink control message for new radio (NR) unlicensed (NR-U) operations. When an opportunity for potential uplink transmissions arises for a user equipment (UE), the UE will perform a CCA procedure on available uplink resources. The UE reports the results of the CCA procedure to a serving base station via an uplink control message, such as an uplink control information (UCI), physical uplink control channel (PUCCH), or the like. The serving base station may then use the CCA results in scheduling uplink transmissions and reserving uplink resources.

公开(公告)号：US20220151023A1

公开(公告)日：2022-05-12

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

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：US11330636B2

公开(公告)日：2022-05-10

申请号：US16854271

申请日：2020-04-21

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  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：US11324016B2

公开(公告)日：2022-05-03

申请号：US16518843

申请日：2019-07-22

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Yisheng Xue ,  Tamer Kadous ,  Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan ,  Yongbin Wei

IPC: H04W72/10 ,  H04W72/04 ,  H04W72/12

Abstract: Aspects directed towards a frame-based equipment (FBE) design for a multi-operator New Radio shared spectrum (NR-SS) are disclosed. In one example, at least one contention slot is monitored within a fixed frame period of an unlicensed spectrum, and a determination is performed of whether a channel reservation signal associated with a higher priority node has been detected within the at least one contention slot. For this example, the at least one contention slot is associated with a resource of a subsequent fixed frame period of the unlicensed spectrum. A determination is then made of whether to transmit communication via the resource. Here, the communication is transmitted via the resource, if the channel reservation signal is not detected, and the communication is not transmitted via the resource, if the channel reservation signal is detected.

公开(公告)号：US11317438B2

公开(公告)日：2022-04-26

申请号：US16894584

申请日：2020-06-05

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei ,  Weiliang Zeng

IPC: H04W74/08 ,  H04B7/024

Abstract: Two-phase floating-instant coordinated multipoint (CoMP) operation is disclosed. The CoMP operation may be initiated by the network via a CoMP cluster of network nodes or by user equipments (UEs) configured for uplink CoMP transmissions. The first phase is initiated after a first node to conduct a successful full listen before talk (LBT) procedure signals the other participating nodes to perform an abbreviated LBT procedure and identifies the beginning of the second phase. After success of the full and abbreviated LBT procedures, each associated node will initiate a first transmission in the first phase. The leading node determines how many of the other nodes are available for transmission and decides, based on that amount and the rules of the network, whether to continue with the CoMP operations. If enough of the other nodes are available, the participating nodes will conduct the CoMP transmissions at the identified beginning of the second phase.

公开(公告)号：US11272412B2

公开(公告)日：2022-03-08

申请号：US16490699

申请日：2017-04-05

Applicant: Qualcomm Incorporated

Inventor： Aleksandar Damnjanovic ,  Keiichi Kubota ,  Linhai He ,  Gavin Bernard Horn ,  Peng Cheng

IPC: H04W36/10 ,  H04W36/00 ,  H04W36/30 ,  H04W36/36

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may autonomously initiate a handover procedure and select a target base station for the handover procedure. The UE may measure a signal from the source base station or the target base station, or both, and the UE may determine whether specific criteria at both base stations are within a pre-configured range. If the criteria at both base stations are within the pre-configured range, the UE may identify the target base station as a potential candidate for a handover. Accordingly, when the UE determines that radio conditions with the source base station are deteriorating (or fall below a threshold), the UE may initiate a handover to the target base station autonomously and without specific direction from the source base station.

公开(公告)号：US20220061086A1

公开(公告)日：2022-02-24

申请号：US17454023

申请日：2021-11-08

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei ,  Tamer Kadous

IPC: H04W74/00 ,  H04L5/00 ,  H04W16/14 ,  H04W72/04

Abstract: Coordination of listen before talk (LBT) structure in new radio (NR) unlicensed (NR-U) multi-channel access operations is disclosed. In one aspect, when a base station determines to access shared communication spectrum, it may transmit an LBT structure signal that identifies the current LBT structure. The base station would then attempt access to the shared spectrum according to the LBT structure. In another aspect, a coordination server is used to manage access to the shared spectrum. Each node desiring access registers with the coordination server, which provides access parameters for the accessing node to use that increases the likelihood of successful access. The accessing nodes will transmit the selected access configuration used to access the shared spectrum, wherein the access configuration is selected based on the access parameters.