公开(公告)号：US09967752B2

公开(公告)日：2018-05-08

申请号：US14454400

申请日：2014-08-07

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Wanshi Chen ,  Naga Bhushan ,  Durga Prasad Malladi ,  Yongbin Wei ,  Srinivas Yerramalli ,  Tingfang Ji ,  Peter Gaal

IPC: H04W72/04 ,  H04W16/14 ,  H04L5/00 ,  H04L27/00 ,  H04B1/713 ,  H04W36/22

CPC classification number: H04W16/14 ,  H04B1/713 ,  H04L5/001 ,  H04L5/0012 ,  H04L5/0041 ,  H04L27/0006 ,  H04W36/22

Abstract: Methods, systems, and apparatuses are described for wireless communications, in which transmission of common information to two or more receivers over unlicensed spectrum may be provided. The common information may be transmitted over a number (e.g., a set) of different carrier frequencies of the unlicensed spectrum. A staggering pattern may be employed to transmit all or a part of the common information across each of the carrier frequencies in the set of carrier frequencies. The detection of the information on one of the carrier frequencies may provide information that may be used to derive the staggering pattern. The duration of the common information transmission on each of the carrier frequencies may be selected such that a clear channel assessment (CCA) to determine availability of the unlicensed spectrum is not required.

公开(公告)号：US09949315B2

公开(公告)日：2018-04-17

申请号：US14553789

申请日：2014-11-25

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Wanshi Chen ,  Naga Bhushan ,  Peter Gaal ,  Kiran Kumar Somasundaram ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi ,  Hao Xu ,  Tingfang Ji

IPC: H04W4/00 ,  H04W76/04 ,  H04W16/14 ,  H04W74/08 ,  H04W72/04 ,  H04W36/22

CPC classification number: H04W76/28 ,  H04W16/14 ,  H04W36/22 ,  H04W72/0426 ,  H04W74/08

Abstract: Techniques are described for wireless communication. One method includes monitoring, by a first base station of a first operator, for clear channel assessment (CCA) exempt transmission (CET) timing information of a second base station of a second operator; identifying transmission timings of CETs of the second base station of the second operator based at least in part on the monitoring; and discontinuing transmissions of the first base station of the first operator during the transmission timings of the CETs of the second base station of the second operator. Transmissions of the second base station of the second operator may be asynchronous to transmissions of the first base station of the first operator.

公开(公告)号：US09924509B2

公开(公告)日：2018-03-20

申请号：US14494779

申请日：2014-09-24

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Peter Gaal ,  Wanshi Chen ,  Tingfang Ji ,  Durga Prasad Malladi ,  Yongbin Wei ,  Naga Bhushan ,  Aleksandar Damnjanovic ,  Tao Luo

IPC: H04W72/04 ,  H04W28/18 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/003 ,  H04W28/18

Abstract: Certain aspects of the present disclosure relate to techniques for configuring an adaptive frame structure for wireless communications systems using unlicensed radio frequency spectrum. A base station (BS) may determine whether another device is transmitting on a channel in the unlicensed radio frequency spectrum or one or more other network conditions pertaining to the channel, determine a frame structure from a plurality of frame structures used for data communications based at least in part on the one or more network conditions, wherein each of the plurality of frame structures has a different frame duration, and communicate with a user equipment (UE) using the determined frame structure. A UE may determine a frame structure from a plurality of frame structures used for data communications, wherein each of the plurality of frame structures has a different frame duration, and communicate with a BS using the determined frame structure.

公开(公告)号：US09883404B2

公开(公告)日：2018-01-30

申请号：US14096686

申请日：2013-12-04

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Naga Bhushan ,  Tao Luo ,  Yongbin Wei

IPC: H04W16/14 ,  H04W74/08 ,  H04W72/12 ,  H04W28/08 ,  H04L5/00 ,  H04L27/00 ,  H04L5/14

CPC classification number: H04W16/14 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0092 ,  H04L5/14 ,  H04L27/0006 ,  H04W28/08 ,  H04W72/1231 ,  H04W72/1278 ,  H04W74/0808

Abstract: Methods, systems, and apparatuses are described for wireless communications. In one method, an uplink grant may be received over a licensed spectrum. A clear channel assessment (CCA) may be performed in response to the uplink grant to determine availability of an unlicensed spectrum. The CCA may be performed prior to a transmission associated with the uplink grant. In another method, scheduling information may be received over a licensed spectrum. An uplink grant may be transmitted over the licensed spectrum. The uplink grant may be based at least in part on the scheduling information. The uplink grant may be configured to trigger a CCA to determine availability of an unlicensed spectrum prior to a transmission associated with the uplink grant.

公开(公告)号：US09877282B2

公开(公告)日：2018-01-23

申请号：US15371507

申请日：2016-12-07

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Durga Prasad Malladi ,  Yongbin Wei ,  Peter Gaal ,  Wanshi Chen ,  Aleksandar Damnjanovic ,  Tao Luo

IPC: H04B7/14 ,  H04W52/02 ,  H04W88/04

CPC classification number: H04W52/0225 ,  H04B7/14 ,  H04L5/0007 ,  H04W52/0206 ,  H04W52/0209 ,  H04W52/0216 ,  H04W52/0229 ,  H04W74/0833 ,  H04W88/04 ,  H04W88/08 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/24 ,  Y02D70/25

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives an LDCS configuration for a UE relay from a second entity and monitors for an LDCS from the UE relay based on the received LDCS configuration. The second entity may comprise one of an LPN that is not in a dormant state and a Macro cell. The apparatus may receive LDCS configurations for a plurality of LPNs and monitor for a plurality of LPNs based on the received LDCS configurations. When the apparatus determines a need to connect to a LPN, the apparatus may select an LPN among the plurality of LPNs.

公开(公告)号：US09867055B2

公开(公告)日：2018-01-09

申请号：US14685051

申请日：2015-04-13

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Naga Bhushan ,  Durga Prasad Malladi ,  Yongbin Wei ,  Kiran Kumar Somasundaram ,  Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Hao Xu

IPC: H04L1/00 ,  H04W16/14 ,  H04W74/08 ,  H04J3/16 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04J3/1694 ,  H04W72/044 ,  H04W74/08

Abstract: Techniques are described for wireless communication. One method includes identifying, by a first transmitter, a first contention access protocol timing for accessing an unlicensed radio frequency spectrum band, and aligning a second contention access protocol timing with the first contention access protocol timing, the second contention access protocol timing being used by the first transmitter for accessing the unlicensed radio frequency spectrum band.

公开(公告)号：US09844072B2

公开(公告)日：2017-12-12

申请号：US14839678

申请日：2015-08-28

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Shimman Arvind Patel ,  Durga Prasad Malladi ,  Aleksandar Damnjanovic ,  Hao Xu ,  Yongbin Wei

IPC: H04L12/26 ,  H04W72/14 ,  H04L1/18 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L1/16 ,  H04L25/02 ,  H04L1/00 ,  H04W88/02

CPC classification number: H04W72/14 ,  H04L1/0003 ,  H04L1/0031 ,  H04L1/0088 ,  H04L1/1671 ,  H04L1/1685 ,  H04L1/1812 ,  H04L1/1861 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0078 ,  H04L5/0092 ,  H04L5/0096 ,  H04L25/0224 ,  H04L27/2601 ,  H04W72/0413 ,  H04W88/02

Abstract: Various aspects described herein relate to communicating in a wireless network. An uplink resource grant can be received from a network entity for communicating in the wireless network. A transmission time interval (TTI) for an uplink transmission within a subframe based on the uplink resource grant can be determined, wherein the TTI comprises one or more symbols which are a subset of a plurality of symbols in the subframe. Communications can be transmitted to the network entity over resources specified in the uplink resource grant during the TTI.

公开(公告)号：US20170325201A1

公开(公告)日：2017-11-09

申请号：US15658160

申请日：2017-07-24

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Durga Prasad Malladi ,  Tao Luo ,  Tingfang Ji ,  Naga Bhushan ,  Yongbin Wei ,  Aleksandar Damnjanovic

IPC: H04W72/04 ,  H04W72/12 ,  H04L27/00 ,  H04L5/00 ,  H04W74/08 ,  H04W16/14

CPC classification number: H04W72/04 ,  H04L5/001 ,  H04L5/003 ,  H04L27/0006 ,  H04W16/14 ,  H04W72/1215 ,  H04W74/0833

Abstract: Long term evolution (LTE)/LTE-Advanced (LTE-A) deployments with unlicensed spectrum leverage more efficient LTE communication aspects over unlicensed spectrum, such as over WIFI radio access technology. In order to accommodate such communications, various uplink procedures may be modified in order to handle communications between licensed and unlicensed spectrum with LTE/LTE-A deployments with unlicensed spectrum.

公开(公告)号：US09775078B2

公开(公告)日：2017-09-26

申请号：US14886719

申请日：2015-10-19

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Peter Gaal ,  Gene Fong ,  Kapil Bhattad ,  Yongbin Wei

IPC: H04W72/04 ,  H04W36/00 ,  H04W48/16 ,  H04L1/18 ,  H04W56/00

CPC classification number: H04W36/0061 ,  H04L1/1845 ,  H04L1/1867 ,  H04W36/0016 ,  H04W48/16 ,  H04W56/001

Abstract: Techniques for mitigating data loss during autonomous system information (SI) reading by a user equipment (UE) are described. For autonomous SI reading, the UE may autonomously determine when to read system information from neighbor cells and may not inform a serving cell. In one design, the UE may autonomously select a SI reading gap for reading system information from a neighbor cell. During the SI reading gap, the UE may suspend reception of downlink transmission from the serving cell, receive system information from the neighbor cell, and maintain capability to transmit on the uplink to the serving cell. In one design, the serving cell may determine SI reading gaps autonomously selected by the UE for reading system information from neighbor cells. The serving cell may communicate with the UE by accounting for the SI reading gaps of the UE, e.g., may suspend communication with the UE during the SI reading gaps.

公开(公告)号：US09763172B2

公开(公告)日：2017-09-12

申请号：US14818835

申请日：2015-08-05

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Miguel Griot ,  Hao Xu ,  Wanshi Chen ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W48/12 ,  H04W24/08 ,  H04W52/02 ,  H04W76/04

CPC classification number: H04W48/12 ,  H04W24/08 ,  H04W52/0216 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/24

Abstract: A user equipment (UE) may determine when to monitor for downlink (DL) communications such as paging messages based on both a received extended idle discontinuous reception (eI-DRX) cycle and a change in a downlink channel reliability condition of the UE. A base station may also adjust its transmission of paging information to a UE based on a eI-DRX cycle.