公开(公告)号：US10117246B2

公开(公告)日：2018-10-30

申请号：US14529997

申请日：2014-10-31

Applicant: QUALCOMM Incorporated

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

IPC: H04W36/00 ,  H04W48/20 ,  H04W72/04 ,  H04W88/10

Abstract: Techniques are described for wireless communication. One method includes determining that a cell operates in a shared access radio frequency spectrum, and transmitting signaling information to a mobile device indicating that the cell is prohibited from serving as a primary serving cell based at least in part on the determination that the cell operates in the shared access radio frequency spectrum. Another method includes receiving signaling information at a mobile device from a base station indicating that a cell operating in a shared access radio frequency spectrum is prohibited from serving as a primary serving cell, and identifying the cell as prohibited from serving as a primary serving cell based at least in part on the received signaling information. Another method includes identifying, by a mobile device, a cell operating in a shared access radio frequency spectrum as a secondary serving cell based at least in part on information stored on the mobile device.

公开(公告)号：US10104683B2

公开(公告)日：2018-10-16

申请号：US14993592

申请日：2016-01-12

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A receiving device may detect a signal associated with low latency transmissions and decode a non-low latency communication accordingly. The receiving device may receive an indicator from a transmitting device that indicates where and when low latency communications occur. The indication may specify frequency resources or symbols used by the low latency communication. The indicator may be transmitted during the same subframe as the low latency communication, at the end of a subframe, or during a subsequent subframe. The receiving device may use the indicator to mitigate low latency interference, generate channel estimates, and reliably decode the non-low latency communication. In some cases, the interfering low latency communication may occur within the serving cell of the receiving device; or the interfering low latency communication may occur in a neighboring cell.

公开(公告)号：US10075266B2

公开(公告)日：2018-09-11

申请号：US14507748

申请日：2014-10-06

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Peter Gaal ,  Wanshi Chen ,  Aleksandar Damnjanovic ,  Hao Xu ,  Michael Mao Wang

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/00

CPC classification number: H04L5/003 ,  H04L1/0025 ,  H04L1/0089 ,  H04L5/0046 ,  H04L5/0058 ,  H04W72/044

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus generates a data transport block, divides the data transport block into a number of sub-blocks. The sub-blocks include at least a first sub-block and a second sub-block, where a size of the first sub-block is different than a size of the second sub-block. The apparatus may encode the number of sub-blocks using different code rates and/or different coding schemes. The apparatus may modulate the encoded sub-blocks using different modulation orders. The apparatus transmits the sub-blocks to a receiver.

公开(公告)号：US20180242328A1

公开(公告)日：2018-08-23

申请号：US15954497

申请日：2018-04-16

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Tao Luo ,  Peter Gaal

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

Abstract: Uplink control channel management is disclosed for LTE/LTE-A communication systems with unlicensed spectrum in which two or more physical resource blocks (PRBs) are allocated for uplink control channel transmission. The uplink control information (UCI) payload may be determined based on clear channel assessment (CCA) information associated with carriers scheduled for transmission of the UCI data. With the UCI payload determined, two or more uplink control channel messages may be generated according to at least one control channel format, wherein uplink control channel messages include the UCI payload. These generated uplink control channel messages may then be transmitted over the allocated PRBs.

公开(公告)号：US10057779B2

公开(公告)日：2018-08-21

申请号：US14660717

申请日：2015-03-17

Applicant: QUALCOMM Incorporated

Inventor： Yongbin Wei ,  Durga Prasad Malladi ,  Aleksandar Damnjanovic ,  Naga Bhushan ,  Wanshi Chen ,  Tao Luo ,  Peter Gaal ,  Ravi Teja Sukhavasi

IPC: H04W74/08 ,  H04W16/14 ,  H04J3/16 ,  H04W24/10 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04J3/1694 ,  H04W24/10 ,  H04W72/0453 ,  H04W74/0808

Abstract: Techniques are described for wireless communication. A method for wireless communication includes identifying a frame structure for transmissions using an unlicensed radio frequency spectrum band, the frame structure including at least two special subframes; and performing a procedure to gain access to the unlicensed radio frequency spectrum band during at least a portion of at least one of the at least two special subframes.

公开(公告)号：US20180198556A1

公开(公告)日：2018-07-12

申请号：US15913739

申请日：2018-03-06

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Aleksandar Damnjanovic ,  Marco Papaleo ,  Rahul Malik ,  Peter Gaal

IPC: H04L1/00 ,  H04W74/08 ,  H04L1/18 ,  H04W16/14 ,  H04W88/06 ,  H04W72/12

CPC classification number: H04L1/0009 ,  H04L1/1812 ,  H04W16/14 ,  H04W72/1215 ,  H04W74/0808 ,  H04W88/06

Abstract: Techniques are described for wireless communication. A first method includes sensing an indication of first radio access technology (RAT) communications occupying a shared radio frequency spectrum band; and configuring, in response to the sensing, at least one parameter of a second RAT used by a device to contend for access to the band. A second method includes randomly selecting a number from a range of numbers extending between a lower bound and an upper bound; contending for access to a shared radio frequency spectrum band by performing an extended clear channel assessment (ECCA) procedure over a plurality of CCA slots, the plurality of CCA slots including a first number of CCA slots equal to the upper bound; and winning contention for access to the band after determining, while performing the ECCA procedure, that the band is available for a second number of CCA slots equal to the randomly selected number.

公开(公告)号：US10009861B2

公开(公告)日：2018-06-26

申请号：US14875542

申请日：2015-10-05

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Yongbin Wei ,  Tao Luo ,  Wanshi Chen

IPC: H04W56/00 ,  H04W16/14 ,  H04W74/08

CPC classification number: H04W56/001 ,  H04W16/14 ,  H04W74/08 ,  H04W74/0816

Abstract: Techniques are described for wireless communication. A method for wireless communication may include identifying interference at a first node operating in a shared radio frequency spectrum band. The interference may be caused by a second node operating in the shared radio frequency spectrum band. The second node may operate asynchronously to the first node in the shared radio frequency spectrum band. The method may also include adaptively enabling, based at least in part on the identified interference, a synchronization of the first node with at least a third node in the shared radio frequency spectrum band.

公开(公告)号：US09985773B2

公开(公告)日：2018-05-29

申请号：US14695982

申请日：2015-04-24

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Wanshi Chen ,  Peter Gaal ,  Aleksandar Damnjanovic

IPC: H04L5/16 ,  H04W74/08 ,  H04L5/14 ,  H04W72/04

CPC classification number: H04L5/16 ,  H04L5/143 ,  H04L5/1438 ,  H04W72/048 ,  H04W74/0808

Abstract: Certain aspects of the present disclosure relate to communicating using multiple connectivity in a wireless network. A device can communicate with first cell served by a first access point over a first connection and with a second cell served by a second access point over a second connection. Moreover, the device can determine whether to perform a half-duplex operation or a full-duplex operation for communicating with the first cell served by the first access point over the first connection. The device can further determine whether to perform a half-duplex operation or a full-duplex operation for communicating with the second cell served by the second access point over the second connection.

公开(公告)号：US20180139018A1

公开(公告)日：2018-05-17

申请号：US15637555

申请日：2017-06-29

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W8/00 ,  H04W48/16 ,  H04W28/18 ,  H04J3/06 ,  H04W40/24 ,  H04L29/08

CPC classification number: H04L5/0035 ,  H04J3/0602 ,  H04L5/0078 ,  H04L67/04 ,  H04W8/005 ,  H04W16/14 ,  H04W28/18 ,  H04W40/244 ,  H04W48/16 ,  H04W56/001 ,  H04W74/0808

Abstract: Network discovery and synchronization for new radio (NR) shared spectrum (NR-SS) is discussed for a wireless network having a super frame configuration on a shared spectrum shared between a plurality of network operators. A base station may obtain a discovery preamble from a plurality of network entities within the wireless network, wherein each of the plurality of network entities belongs to one or more of the plurality of network operators and shares the super frame configuration. The base station detects the timing of the super frame configuration using the discovery preamble and may then synchronize the base station to the super frame configuration according to the detected timing.

公开(公告)号：US09955478B2

公开(公告)日：2018-04-24

申请号：US15080393

申请日：2016-03-24

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Aleksandar Damnjanovic

IPC: H04W4/00 ,  H04W72/04 ,  H04W72/12 ,  H04L1/18 ,  H04W72/14 ,  H04W76/04

CPC classification number: H04W72/0446 ,  H04L1/1812 ,  H04W72/0453 ,  H04W72/1278 ,  H04W72/14 ,  H04W76/27

Abstract: Techniques are described for wireless communication. A first method includes receiving a semi-static partial subframe configuration and a corresponding partial subframe identifier; receiving a grant for a partial subframe, the grant identifying the partial subframe identifier; and receiving data scheduled for the partial subframe over a shared radio frequency spectrum band based at least in part on the semi-static partial subframe configuration. A second method includes monitoring a plurality of symbol periods for at least one channel reservation signal transmitted over a shared radio frequency spectrum band, where the at least one channel reservation signal is encoded based at least in part on each symbol period of the plurality of symbol periods; and receiving a downlink transmission over the shared radio frequency spectrum band, where the downlink transmission follows the plurality of channel reservation signals.