公开(公告)号：US11477707B2

公开(公告)日：2022-10-18

申请号：US17089565

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

Inventor： Karthika Paladugu ,  Ozcan Ozturk ,  Xipeng Zhu

IPC: H04W36/00 ,  H04W76/27 ,  H04W84/18

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to procedures for supporting conditional new radio (NR) secondary node (SN) addition and change by using conditional handover (CHO) procedures. A method that may be performed by a user equipment (UE) includes receiving, from a master node (MN), configuration information, identifying a set of candidate cells for a conditional addition or change of a SN for a the UE based on execution criteria, detecting the execution criteria is met for one of the candidate cells, and taking action to add or change to the candidate cell as an SN based on the detection.

公开(公告)号：US11337245B2

公开(公告)日：2022-05-17

申请号：US14654660

申请日：2014-01-27

Applicant: QUALCOMM Incorporated ,  Chao Wei ,  Xipeng Zhu ,  Jilei Hou ,  Neng Wang

Inventor： Chao Wei ,  Xipeng Zhu ,  Jilei Hou ,  Neng Wang

IPC: H04W74/00 ,  H04W52/02 ,  H04W76/28

Abstract: Methods, systems, and devices are described for discontinuous transmission and/or discontinuous reception in time division duplex (TDD) systems that may have data transmission formats dynamically reconfigured. An initial uplink-downlink (UL-DL) configuration for TDD communication between an eNB and user equipment (UE) may be established. This initial UL-DL configuration may be reconfigured to a different UL-DL configuration for one or more UEs in communication with the eNB. When a UE switches to discontinuous reception (DRX) mode, it may monitor control information from the eNB during DRX on periods, a frequency of the DRX on periods based on a reference UL-DL configuration irrespective of any reconfiguration of UL-DL configuration for a particular UE. In some aspects, a UE that is operating in a UL-DL reconfiguration mode may, upon entering DRX mode, autonomously discontinue operating in the UL-DL reconfiguration mode.

公开(公告)号：US11184186B2

公开(公告)日：2021-11-23

申请号：US16593901

申请日：2019-10-04

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Jun Wang ,  Xiaoxia Zhang ,  Gang Bao

IPC: H04L12/18 ,  H04W4/06 ,  H04W72/00 ,  H04W4/021 ,  H04W76/40 ,  H04W36/26 ,  H04L1/00

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE determines whether the UE is located within a sub-region of an MBSFN area based on one or more parameters. The UE receives based on the determination a service over broadcast in the sub-region of the MBSFN area or over unicast outside the sub-region. In an aspect, the MBSFN area may be smaller than a unicast area. In an aspect, adaptive retransmission with a group NACK approach may be used to improve an SNR and reliability.

公开(公告)号：US11166210B2

公开(公告)日：2021-11-02

申请号：US16840146

申请日：2020-04-03

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Xiaoxia Zhang ,  Tom Chin

IPC: H04W36/04 ,  H04W36/00 ,  H04W48/20 ,  H04W74/08 ,  H04W4/06 ,  H04W76/27 ,  G06F9/455 ,  H04W56/00 ,  H04W72/14 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communications are described that provide for user equipment (UE) camping in a virtual cell. A UE may camp in a virtual cell and may be in an idle mode or an inactive mode in the virtual cell. The UE may transition out of the idle or inactive mode and switch from camping in the virtual cell to connecting to a physical cell encompassed by the virtual cell through reselection, redirection, and handover procedures. The virtual cell may include a central unit and multiple distributed units, which may be configured in various physical implementations. Additionally, the virtual cell may be limited to broadcast only or selective unicast signaling.

公开(公告)号：US11166202B2

公开(公告)日：2021-11-02

申请号：US17248099

申请日：2021-01-08

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Masato Kitazoe ,  Gavin Bernard Horn ,  Shyamal Ramachandran ,  Arvind Vardarajan Santhanam ,  Tom Chin ,  Min Wang ,  Kuo-Chun Lee

IPC: H04W4/00 ,  H04W36/00 ,  H04W36/12 ,  H04W36/08

Abstract: This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.

公开(公告)号：US11160074B2

公开(公告)日：2021-10-26

申请号：US16710892

申请日：2019-12-11

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Seyekianoush Hosseini ,  Xipeng Zhu

IPC: H04W72/04 ,  H04L5/00 ,  H04W52/36 ,  H04W52/42 ,  H04W52/14 ,  H04L27/26 ,  H04W52/16

Abstract: Described techniques provide for low latency transmission time interval (TTI) transmissions that may have reduced likelihood of experiencing interference from one or more neighboring transmitters. A base station may configure two or more sets of resources for two or more sets of wireless transmissions, in which low latency transmissions may be transmitted in a set of wireless transmissions using all or a portion of one of the sets of resources. The set of resources available for the low latency transmissions may be associated with a set of power parameters that provide reduced transmission powers relative to one or more of the other sets of resources. The two or more sets of resources may include one or more sub-bands of available frequency resources, one or more subsets of time resources, or combinations thereof. In some cases, neighboring base stations may coordinate sets of resources that have reduced power parameters.

公开(公告)号：US20210289471A1

公开(公告)日：2021-09-16

申请号：US17141206

申请日：2021-01-04

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Prasad Reddy Kadiri ,  Xiaoxia Zhang

IPC: H04W72/00 ,  H04W72/04 ,  H04W74/08 ,  H04W76/27 ,  H04W24/08

Abstract: Methods, systems, and devices for on-demand multicast control channel (MCCH) messages are described. A user equipment (UE) may receive, from a base station, system information indicating an MCCH message configuration. Based on receiving the MCCH message configuration, the UE may transmit a request for an MCCH message. For example, the UE may transmit the request for the MCCH message by a random access preamble or a radio resource control (RRC) message. After transmitting the request, the UE may receive the MCCH message in accordance with the MCCH message configuration. That is, the base station may receive the request and transmit the MCCH message in response to the request. The MCCH message may indicate a multicast service radio bearer (MRB) configuration for receiving multicast traffic. Thus, the UE may receive multicast traffic from the base station in accordance with the MRB configuration.

公开(公告)号：US20210282103A1

公开(公告)日：2021-09-09

申请号：US16468433

申请日：2017-07-12

Applicant: Xipeng ZHU ,  Ruiming ZHENG ,  Xiaoxia ZHANG ,  Xiaohui LIU ,  Gavin Bernard HORN ,  Qualcomm Incorporated

Inventor： Xipeng Zhu ,  Ruiming Zheng ,  Xiaoxia Zhang ,  Xiaohui Liu ,  Gavin Bernard Horn

IPC: H04W60/00 ,  H04W8/18 ,  H04W88/06 ,  H04W76/15 ,  H04W24/10

Abstract: Techniques are described that provide network assisted multi-subscription physical layer sharing at a user equipment (UE) by transmitting a multi-subscription coordination capability to a network, establishing a link for a first subscription with the network based on the multi-subscription coordination capability, and establishing a second subscription with the network using the link based on the multi-subscription coordination capability, the first subscription is associated with the second subscription.

公开(公告)号：US20210058829A1

公开(公告)日：2021-02-25

申请号：US16999008

申请日：2020-08-20

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Karthika Paladugu ,  Masato Kitazoe ,  Xipeng Zhu

IPC: H04W36/00 ,  H04W36/08 ,  H04L12/24 ,  H04W12/04

Abstract: Various aspects and techniques for facilitating handovers in communication networks are disclosed. In a particular implementation, a method of wireless communication includes transmitting, from a first base station to a second base station, a handover request message corresponding to a user equipment (UE) associated with the first base station. The handover request message includes a request for full configuration. The method further includes receiving, from the second base station, a handover response message. The handover response message includes an indicator of acceptance of the full configuration. Other aspects and features are also claimed and described.

公开(公告)号：US20210051749A1

公开(公告)日：2021-02-18

申请号：US16872843

申请日：2020-05-12

Applicant: QUALCOMM Incorporated

Inventor： Neel Tej Adusumilli ,  Xipeng Zhu ,  Ozcan Ozturk

IPC: H04W76/16 ,  H04W76/27 ,  H04W76/30 ,  H04W24/10 ,  H04W80/08

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a master node (MN) may determine to reconfigure a user equipment (UE) from an existing configuration to a full configuration for a dual connectivity (DC) mode. To perform the reconfiguration, the MN may transmit a signal (e.g., a modification request message) indicating the full configuration to a secondary node (SN). The SN may identify the full configuration reconfiguration triggered at the MN based on the signal. The SN may transmit an acknowledgment message to the MN including a secondary cell group (SCG) configuration for the SN complying with the full configuration. The MN may indicate this SCG configuration as part of the full configuration to the UE (e.g., in a radio resource control (RRC) connection reconfiguration message). The UE may perform a reconfiguration process and communicate with the MN and the SN according to the full configuration.