公开(公告)号：US10820326B2

公开(公告)日：2020-10-27

申请号：US16695017

申请日：2019-11-25

Applicant: QUALCOMM Incorporated

Inventor： Vinay Joseph ,  Srinivas Yerramalli ,  Rajat Prakash ,  Aleksandar Damnjanovic ,  Prashanth Haridas Hande

IPC: H04W72/10 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive information identifying a reserved resource allocation, wherein the reserved resource allocation is associated with a reserved resource; receive information identifying another resource allocation, wherein the other resource allocation overlaps with the reserved resource allocation at an overlapped portion; and selectively perform a communication using the overlapped portion for the reserved resource allocation or the other resource allocation based at least in part on at least one of: respective traffic types of the reserved resource allocation and the other resource allocation, or respective priority levels associated with the reserved resource allocation and the other resource allocation. Numerous other aspects are provided.

公开(公告)号：US10805816B2

公开(公告)日：2020-10-13

申请号：US16424279

申请日：2019-05-28

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Aleksandar Damnjanovic

IPC: H04W24/08 ,  H04W76/27 ,  H04W74/08 ,  H04W24/02 ,  H04W72/04 ,  H04W72/08 ,  H04W72/14 ,  H04W74/00 ,  H04W16/14 ,  H04W84/12 ,  H04W88/02

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. An eNB determines a CCA parameter for use by a UE in performing a CCA procedure for UL transmission and transmits an indication of the CCA parameter to the UE. The UE receives an indication of the CCA parameter for UL transmission from the eNB and performs the CCA procedure for UL transmission using the indicated CCA parameter. The UE may transmit to the eNB prior to receiving the indication of the CCA parameter. The eNB may use the report in determining the CCA parameter for use by the UE.

公开(公告)号：US10791556B2

公开(公告)日：2020-09-29

申请号：US16383182

申请日：2019-04-12

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Srinivas Yerramalli ,  Durga Prasad Malladi ,  Naga Bhushan ,  Yongbin Wei ,  Tao Luo ,  Hao Xu ,  Wanshi Chen ,  Shimman Arvind Patel ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04L5/00 ,  H04W16/14 ,  H04W40/24 ,  H04W74/08 ,  H04W88/02 ,  H04W88/08 ,  H04L1/00

Abstract: Techniques are described for wireless communication. A first method includes winning a contention for access to an unlicensed radio frequency spectrum band, and transmitting at least a portion of a channel usage beacon signal (CUBS) over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted in a number of frequency interlaces of the unlicensed radio frequency spectrum band. A second method includes winning a contention for access to an unlicensed radio frequency spectrum band; determining whether the contention is won within a threshold time before a next symbol period boundary; and transmitting at least a portion of a CUBS over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted during a preamble including a fractional period of a first symbol period. The at least portion of the CUBS may be based at least in part on the determining.

公开(公告)号：US10772021B2

公开(公告)日：2020-09-08

申请号：US14957255

申请日：2015-12-02

Applicant: QUALCOMM Incorporated

Inventor： Jun Wang ,  Ozcan Ozturk ,  Madhavan Srinivasan Vajapeyam ,  Ravindra Manohar Patwardhan ,  Miguel Griot ,  Onkar Jayant Dabeer ,  Jelena Damnjanovic ,  Aleksandar Damnjanovic ,  Taesang Yoo ,  Yongbin Wei ,  Durga Prasad Malladi ,  Ajay Gupta

IPC: H04W36/16 ,  H04W74/08 ,  H04W36/00 ,  H04W36/30 ,  H04W36/36 ,  H04W36/26 ,  H04W8/22 ,  H04W84/04

Abstract: Certain aspects relate to methods and apparatus for discovering whether one or more enhanced capabilities are supported by devices (e.g., user equipment (UE), base station (BS), etc.) in a network. The enhanced capabilities may include, for example, the ability to support certain low latency procedures, enhanced component carrier (eCC) capability, and the like. The devices in the network may perform one or more handover-related procedures (e.g., cell selection/reselection, make-before-break handover, etc.) and/or other procedures (e.g., QoS negotiation, etc.) based, at least in part, on support for the one or more enhanced capabilities.

公开(公告)号：US20200281027A1

公开(公告)日：2020-09-03

申请号：US16803733

申请日：2020-02-27

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Yongbin Wei

IPC: H04W74/08 ,  H04W16/14

Abstract: Technology neutral coexistence and high priority traffic is disclosed for use in unlicensed frequency bands. Synchronization boundaries are defined in which synchronous contention windows across all radio access technologies attempting access to a shared communication channel occur periodically. Between the synchronous contention windows, the nodes may return to asynchronous access procedures. Such synchronous access procedures may be applicable to certain power classes or deployment type nodes. Additionally, various priority schemes for the synchronous contention window may be used to ensure protection of higher priority nodes or traffic, such as ultra-reliable low latency communication (URLLC) traffic. According to certain aspects, the deployment of such synchronous access methodology may be triggered via signaling from initiating devices. Additional aspects may provide for a technology neutral receiver protection mechanism by defining resources for protection signaling during receiver protection intervals between successive synchronous contention windows.

公开(公告)号：US20200260292A1

公开(公告)日：2020-08-13

申请号：US16783372

申请日：2020-02-06

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing Sun ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang ,  Yongbin Wei

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

Abstract: A method, apparatus, and computer-readable medium that enable and disable autonomous downlink transmission (ADT) capability at a user equipment (UE) or a gNB are disclosed. The ADT capability is enabled when a triggering event occurs. The ADT capability is realized in part via initiating a listen before talk (LBT) procedure of a first LBT type to obtain an uplink (UL) transmission opportunity (TxOP) after determining that the UE does not have any UL data to transmit, transmitting uplink control information (UCI) with a limited amount of data to request for a resource grant of the TxOP for pending DL data; and receiving the pending DL data, wherein resources for receiving the pending DL data is dynamically configured via the UCI or semi-statically configured through a radio resource control (RRC) protocol message.

公开(公告)号：US10721770B2

公开(公告)日：2020-07-21

申请号：US15961606

申请日：2018-04-24

Applicant: QUALCOMM Incorporated

Inventor： Madhavan Srinivasan Vajapeyam ,  Aleksandar Damnjanovic ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W74/08 ,  H04W16/14 ,  H04B17/327 ,  H04L5/00 ,  H04L1/20 ,  H04B17/318 ,  H04B17/336 ,  H04W56/00

Abstract: The disclosure provides for control plane measurements in a wireless device. The wireless device may measure, across multiple sub-frames received over an unlicensed spectrum, received cell-specific reference signals (CRS) from a cell to obtain CRS measurements. The wireless device may identify one or both of a first subset of the CRS measurements associated with a first subset of the sub-frames including opportunistic transmissions and a second subset of the CRS measurements associated with a second subset of the sub-frames including guaranteed transmissions. The wireless device may compute one or both of a first signal to interference plus noise ratio (SINR) value for the first subset of the CRS measurements and a second SINR value for the second subset of the CRS measurements. The wireless device may monitor a radio link condition of the wireless device based at least in part on the first SINR value or the second SINR value.

公开(公告)号：US10721628B2

公开(公告)日：2020-07-21

申请号：US16533230

申请日：2019-08-06

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Tamer Kadous ,  Xiaoxia Zhang ,  Jing Sun

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

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter device may determine that a communication is to be transmitted on a shared spectrum during a channel access interval not reserved for the communication. The transmitter device may determine, based at least in part on determining that the communication is to be transmitted, that a detection power of a listen-before-talk (LBT) operation satisfies a threshold. The transmitter device may transmit, after a coordinated rate control region and based at least in part on the detection power of the LBT operation satisfying the threshold, a reservation request signal associated with the communication. The transmitter device may transmit the communication before an end of the channel access interval based at least in part on a response to the reservation request signal. Numerous other aspects are provided.

公开(公告)号：US10701729B2

公开(公告)日：2020-06-30

申请号：US14728859

申请日：2015-06-02

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Peter Gaal ,  Wanshi Chen ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Durga Prasad Malladi ,  Hao Xu ,  Madhavan Srinivasan Vajapeyam ,  Srinivas Yerramalli

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

Abstract: Protection of transmission and reception of clear channel assessment (CCA)-exempt transmission (CET) is disclosed in which channel reserving signals or protection signals may be transmitted by the transmitter or receiver of the CET. The transmitted signals may be received by the neighboring access points that could potentially cause interference with the reception of the CET.

公开(公告)号：US10687219B2

公开(公告)日：2020-06-16

申请号：US16024289

申请日：2018-06-29

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Andrei Dragos Radulescu ,  Tao Luo ,  Tamer Kadous ,  Aleksandar Damnjanovic

IPC: H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W76/27 ,  H04W72/08 ,  H04L5/00 ,  H04W24/10 ,  H04W74/00

Abstract: Methods, systems, and devices for wireless communication are described. The described techniques provide for transmission of uplink data from a user equipment (UE) in the absence of scheduled uplink resources for the uplink data transmission that are allocated to the UE prior to the transmission of the uplink data. Various examples provide frame structures that may be used for unscheduled uplink transmissions of a UE. Unscheduled uplink transmissions may be transmitted in a shared or unlicensed radio frequency spectrum, and access to the shared or unlicensed radio frequency spectrum may be determined based on a priority of an operator associated with a UE for accessing the spectrum. Beamforming techniques may be used for uplink and downlink transmissions and beam widths for beamformed transmissions may be selected based on the information transmitted in a transmission, an operator priority for use of shared radio frequency spectrum, or any combination thereof.