公开(公告)号：US11812321B2

公开(公告)日：2023-11-07

申请号：US15299047

申请日：2016-10-20

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Tao Luo

IPC: H04W36/32 ,  H04W36/36 ,  H04W36/00 ,  H04W36/30 ,  H04W36/24

CPC classification number: H04W36/32 ,  H04W36/0061 ,  H04W36/00835 ,  H04W36/00837 ,  H04W36/30 ,  H04W36/36 ,  H04W36/24

Abstract: Techniques for autonomous handover signaling on a shared communication medium are disclosed. An access terminal may receive, from an access point, one or more configuration messages configuring the access terminal for autonomous handover and including a parameter defining one or more autonomous handover triggering events. The access point may perform one or more mobility measurements on a communication medium and monitor for the one or more autonomous handover triggering events based on the one or more mobility measurements. The access terminal may perform an autonomous handover from a source access point to a target access point based on the monitoring.

公开(公告)号：US11528688B2

公开(公告)日：2022-12-13

申请号：US17080691

申请日：2020-10-26

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Tao Luo

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06

Abstract: Techniques for managing uplink communication on a wireless communication medium are disclosed. An access point may transmit and an access terminal may receive an Uplink Control Information (UCI) payload indicator over a downlink channel instructing an access terminal to configure a UCI payload. The access terminal may then transmit and the access point may then receive UCI including the configured UCI payload over an uplink channel in response to the UCI payload indicator.

公开(公告)号：US10827471B2

公开(公告)日：2020-11-03

申请号：US15433724

申请日：2017-02-15

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Tao Luo

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06

Abstract: Techniques for managing uplink communication on a wireless communication medium are disclosed. An access point may transmit and an access terminal may receive an Uplink Control Information (UCI) payload indicator over a downlink channel instructing an access terminal to configure a UCI payload. The access terminal may then transmit and the access point may then receive UCI including the configured UCI payload over an uplink channel in response to the UCI payload indicator.

公开(公告)号：US10700802B2

公开(公告)日：2020-06-30

申请号：US15898981

申请日：2018-02-19

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Chirag Sureshbhai Patel ,  Tao Luo ,  Tamer Kadous

IPC: H04J11/00 ,  H04L5/00 ,  H04W48/16 ,  H04B7/06 ,  H04W16/14 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure bursts of synchronization signal (SS) blocks for discovery reference signal (DRS) transmission. The base station may transmit an SS block set in an SS burst according to a beam sweep pattern, which may be repeated for a subsequent SS block set. The base station may configure a number of SS block sets in each SS burst and transmit each SS block in an SS block set using a different beam. Each SS burst may be transmitted according to a different beam sweep pattern and the base station may repeat transmission of SS bursts according to a DRS repetition periodicity. A user equipment (UE) may sweep through antenna sub-arrays during reception of an SS burst to determine a suitable sub-array for communication.

公开(公告)号：US10667297B2

公开(公告)日：2020-05-26

申请号：US15424569

申请日：2017-02-03

Applicant: QUALCOMM Incorporated

Inventor： Damanjit Singh ,  Chirag Sureshbhai Patel ,  Rajat Prakash ,  Farhad Meshkati

IPC: H04W74/08 ,  H04W76/18 ,  H04W36/08 ,  H04W16/16

Abstract: Techniques for mobility-aware contention procedures on a shared communication medium are disclosed. A connection failure associated with mobility between a source access point and a target access point sharing a communication medium may be detected. Based on the detected connection failure, a backoff threshold associated with contention-based access to the communication medium may be adapted. Contention for access to the communication medium may then proceed in accordance with the adapted backoff threshold.

公开(公告)号：US10425973B2

公开(公告)日：2019-09-24

申请号：US15358745

申请日：2016-11-22

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Tao Luo ,  Chih-Hao Liu

IPC: H04W74/08 ,  H04B7/26 ,  H04L5/00 ,  H04L5/14 ,  H04W48/10 ,  H04W52/16 ,  H04W74/00 ,  H04W84/12 ,  H04W16/14

Abstract: Techniques for random access channel signaling on a shared communication medium are disclosed. A broadcast message including information associated with a Physical Random Access Channel (PRACH) may be transmitted and received on one or more subframes in a portion configured for downlink signaling. The broadcast message may comprise a contention type indicator, a timing advance indicator, or a combination thereof. The contention type indicator may indicate whether contention is in effect for transmission on the PRACH. The timing advance indicator may indicate whether an uplink transmission offset is in effect for transmission on the PRACH. Signaling over the PRACH may be transmitted and received on one or more subframes in a portion configured for uplink signaling.

公开(公告)号：US10404434B2

公开(公告)日：2019-09-03

申请号：US15899060

申请日：2018-02-19

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Andrei Dragos Radulescu ,  Chirag Sureshbhai Patel ,  Tamer Kadous

IPC: H04W4/00 ,  H04L5/00 ,  H04W56/00 ,  H04W74/08 ,  H04W16/14 ,  H04B7/04 ,  H04L27/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communication are described that involve determining multiple beamformed transmission beams for transmission of an opportunistic or multi-beam discovery reference signal (DRS) over a shared radio frequency spectrum band. The base station may determine a contention exempt transmission (CET) period for the shared spectrum band and transmit the DRS using multiple transmission beams during CET period or the base station may perform a listen before talk (LBT) procedure, and transmit, based on the LBT procedure, the DRS over a shared radio frequency spectrum band. The base station may transmit an indication of the type of DRS transmission, a subframe offset, random access configurations, and/or error correcting codes to enable a user equipment to discover, connect to, and acquire timing information associated with the network.

公开(公告)号：US10362574B2

公开(公告)日：2019-07-23

申请号：US15814764

申请日：2017-11-16

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Chirag Sureshbhai Patel ,  Tamer Kadous

IPC: H04W4/00 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14 ,  H04W16/14 ,  H04W74/08

Abstract: Disclosed techniques provide for different uplink resource allocation schemes in transmissions that use different shared radio frequency spectrum bands. In some cases, the different shared radio frequency spectrum bands may have different transmission characteristics or parameters, and associated resource allocation schemes may be selected to provide transmissions that are more likely to comply with the transmission characteristics or parameters associated with a particular band. In some cases, resource allocation types may be identified based on one band and mapped to identify uplink resources for an uplink transmission on a different shared radio frequency spectrum band.

公开(公告)号：US20190149185A1

公开(公告)日：2019-05-16

申请号：US16242969

申请日：2019-01-08

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Chirag Sureshbhai Patel ,  Tamer Kadous ,  Hao Xu

IPC: H04B1/403 ,  H04L5/00 ,  H04B1/00 ,  H04W72/04 ,  H04W16/14 ,  H04L27/00 ,  H04B7/26 ,  H04B1/26 ,  H04B1/707 ,  H04B7/24

Abstract: Methods, systems, and devices for wireless communication are described. Resources for narrowband communication in an unlicensed radio frequency spectrum band may be configured and allocated based on resource availability, regulatory constraints, and device capability or category. A narrowband wireless device, such as a machine type communication device or other relatively low complexity device, may communicate using one or more narrowband carriers, which may occupy between one tone and multiple resource blocks in an unlicensed spectrum band (e.g., any number of resources between one (1) tone and multiple resource blocks (RBs)). Different device types may thus be configured differently as they move between geographic regions. The base station may then communicate with the narrowband mobile device based on the resource allocation and the carrier configuration.

公开(公告)号：US20180288738A1

公开(公告)日：2018-10-04

申请号：US16001918

申请日：2018-06-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Juan Montojo ,  Taesang Yoo ,  Siddhartha Mallik ,  Andrei Dragos Radulescu ,  Chirag Sureshbhai Patel ,  Chengjin Zhang

IPC: H04W68/02 ,  H04W72/04 ,  H04W16/14 ,  H04W68/00 ,  H04W76/28 ,  H04W72/00 ,  H04W74/08 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W68/02 ,  H04W16/14 ,  H04W68/005 ,  H04W72/005 ,  H04W72/0453 ,  H04W74/0808 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a configuration for enhanced paging to a UE being served by a cell over a shared frequency band. The enhanced paging may include multiple paging intervals for each paging cycle. The UE may enable reception for a paging interval and determine whether the UE receives a downlink transmission. The UE may lengthen a paging interval or enable reception during a second paging interval based in part on determining whether the UE receives a downlink transmission. In some examples, the UE may receive a paging queue status indication indicating that paging information will be transmitted during a paging interval or a later interval, or indicating that no paging information is present at a serving cell.