公开(公告)号：US20180302201A1

公开(公告)日：2018-10-18

申请号：US15725762

申请日：2017-10-05

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Xiaoxia Zhang ,  Seyed Ali Akbar Fakoorian ,  Ahmed Kamel Sadek ,  Siddhartha Mallik ,  Tamer Kadous

IPC: H04L5/00 ,  H04W74/08

Abstract: Sounding reference signal (SRS) transmission with implied request-to-send (RTS)/clear-to-send (CTS) operations is discussed. Two different types of SRS are defined, a legacy SRS associated with channel measurement sounding, and a contention SRS associated with contention resolution for medium sharing. The type of SRS may be distinguished based on the SRS resource associated with the particular type. Thus, legacy SRS are assigned to one SRS resource, while contention SRS are assigned to separate SRS resources. Therefore, when a neighbor node detects an SRS associated with the SRS resource for contention-type SRS, the neighbor node may know to refrain from transmission or to adjust or modify its communications depending on a spatial direction of the contention SRS.

公开(公告)号：US20180295523A1

公开(公告)日：2018-10-11

申请号：US15707824

申请日：2017-09-18

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Xiaoxia Zhang ,  Taesang Yoo

IPC: H04W16/14 ,  H04W72/04 ,  H04B17/318 ,  H04W74/08 ,  H04L5/00

Abstract: Inter-operator sounding reference signal (SRS) resource coordination is discussed in spatial divisional multiplex (SDM) coordinated multipoint (CoMP) operations. The higher priority operator conveys SRS resource reservation information identifying the fraction of resources it intends to use. The lower priority operator observes this resource reservation information and selects to reserve SRS resources from the remaining fraction of resources, if any, for scheduling its own users' SRS. The lower priority operator will transmit its own resource reservation information identifying the amount of SRS resources that it has identified for the non-priority use.

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.

公开(公告)号：US10009053B2

公开(公告)日：2018-06-26

申请号：US14497218

申请日：2014-09-25

Applicant: QUALCOMM Incorporated

Inventor： Kiran Kumar Somasundaram ,  David Gutierrez-Estevez ,  Aleksandar Damnjanovic ,  Tao Luo ,  Siddhartha Mallik ,  Hao Xu

IPC: H04L25/03 ,  H04B1/10 ,  H04J11/00 ,  H04B1/7097 ,  H04W24/08 ,  H04W72/08

CPC classification number: H04B1/1027 ,  H04B1/7097 ,  H04J11/0023 ,  H04L25/03821 ,  H04W24/08 ,  H04W72/082

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, a user equipment (UE) receives a signal at the UE. The received signal includes a transmission from a serving cell and at least a first interfering transmission. The UE determines a constrained transmission rate associated with the first interfering transmission and cancels the first interfering transmission from the received signal based on the constrained transmission rate. In another aspect, a wireless communication apparatus determines a constrained transmission rate for a transmission on one or more reduced-rate resources. The wireless communication apparatus signaling the constrained transmission rate to a user equipment (UE).

公开(公告)号：US20180146381A1

公开(公告)日：2018-05-24

申请号：US15860442

申请日：2018-01-02

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Jing Sun ,  Arumugam Chendamarai Kannan

IPC: H04W16/14 ,  H04L5/00 ,  H04L1/16 ,  H04W24/10 ,  H04W72/08 ,  H04W48/16 ,  H04L1/00 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04L1/0003 ,  H04L1/16 ,  H04L1/1861 ,  H04L5/0033 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0073 ,  H04W24/10 ,  H04W48/16 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1284

Abstract: Methods, systems, and devices are described for wireless communication. A device may use enhanced reporting mechanisms to support control information reporting on shared spectrum. In some cases, a device may utilize enhanced component carriers (eCCs) for data transmissions. In one example, the device may transmit control information (e.g., ACK/NACK, CSI, etc.) to a corresponding device using a CCA exempt transmission (CET). In another example, a device may report control information quasi-periodically. For instance, a device may be assigned a specified interval and a control feedback window for reporting control information (e.g., CSI). The window may provide a duration prior and subsequent to the specified interval during which a UE may transmit control information. For example, the device may perform a CCA reserving the channel for a duration that does not include the specified interval but may transmit feedback information based on determining the specified interval falls within the assigned window.

公开(公告)号：US20180132261A1

公开(公告)日：2018-05-10

申请号：US15608512

申请日：2017-05-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik ,  Juan Montojo ,  Aleksandar Damnjanovic

IPC: H04W72/12

CPC classification number: H04W72/1231 ,  H04J2011/0016 ,  H04W72/1247 ,  H04W72/1263 ,  H04W74/0816

Abstract: Interference management with a coloring concept is discussed. A target transmitter may obtain a first priority schedule for a transmission opportunity of the target transmitter, wherein the first priority schedule identifies transmission priority for a plurality of base station groups. Each of the base station groups may include one or more base stations that are grouped according to various transmission criteria. The target transmitter will identify data for transmission and monitor the medium sensing slots corresponding to each of the base station groups for a medium reservation signal. The highest priority medium reservation signal may be determined out of any medium reservation signals detected during the monitoring, The highest priority medium reservation signal is determined according to the first priority schedule. Once identified, the data is transmitted by the target transmitter when the highest priority medium reservation signal corresponds to the target transmitter.

公开(公告)号：US20180131499A1

公开(公告)日：2018-05-10

申请号：US15637497

申请日：2017-06-29

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik ,  Juan Montojo ,  Aleksandar Damnjanovic

IPC: H04L5/12 ,  H04W72/04

Abstract: Wireless communications systems and methods related to sharing a frequency-division duplexing (FDD) spectrum among multiple network operating entities. In one embodiment, a first wireless communication device communicates, with a second wireless communication device in a downlink (DL) frequency band, a reservation signal in a first channel sensing time slot of a frame to reserve a transmission time slot in the frame. The first wireless communication device communicates, in an uplink (UL) frequency band, an UL control signal in the first channel sensing time slot. The UL frequency band and the DL frequency band are shared by a plurality of network operating entities for frequency-division duplexing (FDD) communications. In another embodiment, a first wireless communication device communicates, in a first frequency band of a FDD network shared by a plurality of network operating entities, a reservation signal to reserve the first frequency band for time-division duplexing (TDD) communications.

公开(公告)号：US09942801B2

公开(公告)日：2018-04-10

申请号：US14968339

申请日：2015-12-14

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram

IPC: H04W28/26 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W72/12

CPC classification number: H04W28/26 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/1215 ,  H04W74/08

Abstract: Techniques are described for wireless communication. A first method includes contending for access to a first channel of a radio frequency spectrum, and transmitting, upon winning contention for access to the first channel, a first channel reservation indication. The contending may be performed by a first node operating according to a first radio access technology. The first channel reservation indication may be understood by a second node operating according to a second radio access technology.

公开(公告)号：US09929835B2

公开(公告)日：2018-03-27

申请号：US15172682

申请日：2016-06-03

Applicant: QUALCOMM Incorporated

Inventor： Onkar Jayant Dabeer ,  Siddhartha Mallik ,  Taesang Yoo ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W56/00 ,  H04W72/12 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04W56/001 ,  H04W72/1215 ,  H04W74/08 ,  H04W74/0816

Abstract: Techniques are described for wireless communication. One method includes identifying a plurality of counters used to contend for access to a plurality of channels of an unlicensed radio frequency spectrum band. Each of the plurality of counters is associated with a respective channel of the plurality of channels of the unlicensed radio frequency spectrum band. The method also includes measuring at least one channel of the plurality of channels of the unlicensed radio frequency spectrum band. The measuring is associated with a contention for access to the at least one channel of the unlicensed radio frequency spectrum band. The method also includes synchronizing or desynchronizing at least a subset of the plurality of counters based at least in part on the measuring.

公开(公告)号：US20180062801A1

公开(公告)日：2018-03-01

申请号：US15464731

申请日：2017-03-21

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Taesang Yoo ,  Jing Sun ,  Juan Montojo ,  Siddhartha Mallik

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0035 ,  H04J11/0053 ,  H04L5/0048 ,  H04L27/2605 ,  H04L27/2607 ,  H04L27/2646 ,  H04W72/042

Abstract: Various aspects described herein relate to techniques for communications in a coordinated multi-point (CoMP) wireless communications system. In an aspect, a method of wireless communications may include transmitting, by a user equipment (UE), reference signal (RS) measurements for forming a CoMP cluster, receiving, at the UE from at least a base station in the CoMP cluster, a message including information of at least a first cyclic prefix (CP) length for a first uplink transmission, wherein at least the first CP length for the first uplink transmission is different from a second CP length used for a second uplink transmission, and transmitting, by the UE, the first uplink transmission using at least the first CP length. The techniques described herein may apply to different communications technologies, including 5th Generation (5G) New Radio (NR) communications technology.