公开(公告)号：US10341884B2

公开(公告)日：2019-07-02

申请号：US15182273

申请日：2016-06-14

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik

IPC: H04W24/02 ,  H04L27/26 ,  H04W28/04 ,  H04W24/08 ,  H04W74/06 ,  H04W28/02 ,  H04W74/00 ,  H04B7/06 ,  H04W74/08 ,  H04W72/08

Abstract: Channel clearance using a shared radio frequency spectrum band may be performed for both a base station and a user equipment (UE). A base station may perform a listen before talk (LBT) procedure and verify one or more channels in a shared radio frequency spectrum band are available for transmissions and, if the LBT procedure is successful, transmit a pre-grant transmission to one or more UEs. The UEs may perform an LBT procedure for channel(s) indicated in the pre-grant transmission. If the UE LBT procedure passes, the UE may transmit a channel clearance signal, and may transmit a feedback communication responsive to the pre-grant transmission. The feedback communication may indicate, for example, the pre-grant transmission was received and which of the one or more channels are available based on the LBT procedure. The base station may receive the feedback communication and initiate transmissions to the UE.

公开(公告)号：US10313916B2

公开(公告)日：2019-06-04

申请号：US14937017

申请日：2015-11-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W8/08 ,  H04W28/02 ,  H04W28/06 ,  H04W36/00 ,  H04W36/12 ,  H04W40/24 ,  H04W88/16

Abstract: Methods, systems, and devices are described for decreasing user plane latency in a wireless communication system. This may include routing a portion of bearer traffic to or from a UE through a local or serving gateway, or within or between base stations, rather than via the core network. In some examples, techniques for selected internet protocol flow ultra-low latency (SIPFULL) for systems in which users may have subscribed to enhanced services may be employed. The network may, for instance, authorize SIPFULL functionalities for UEs per access point name (APN) based on individual services subscribed by the UE to improve overall quality of service (QoS). In some examples, a UEs latency requirements or SIPFULL authorizations may affect mobility operations.

公开(公告)号：US20190132829A1

公开(公告)日：2019-05-02

申请号：US16143179

申请日：2018-09-26

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Ananta Narayanan Thyagarajan ,  Xiaoxia Zhang ,  Jing Sun ,  Taesang Yoo

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. One method may include determining symbol level scheduling for symbols allocated to a plurality of user equipments (UEs) within a transmission time interval (TTI); transmitting, in a control channel of the TTI, control information indicating the symbol level scheduling; and communicating, in accordance with the symbol level scheduling, the symbols within the TTI in a plurality of beamformed transmissions. Another method may include receiving, by a UE, control information in a control channel of a TTI; processing the control information to determine a subset of symbols of the TTI allocated to the UE, a symbol length or duration of the subset of the symbols allocated to the UE, and symbol level scheduling for the subset of the symbols within the TTI; and receiving the subset of the symbols based on the control information.

公开(公告)号：US10277439B2

公开(公告)日：2019-04-30

申请号：US15485800

申请日：2017-04-12

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Wanshi Chen ,  Durga Prasad Malladi ,  Seyedkianoush Hosseini ,  Juan Montojo ,  Peter Gaal ,  Taesang Yoo ,  Yongbin Wei

IPC: H04L27/00 ,  H04L1/00 ,  H04L12/931 ,  H04W24/02 ,  H04L27/26 ,  H04L12/935

Abstract: Methods, systems, and devices for wireless communication are described that may perform dual stage channel interleaving in which code blocks are interleaved at the code block level and at a symbol level. The interleaved code block data may provide time diversity for the code block data, and the interleaved symbol data may provide frequency diversity for the code block data, thus helping to mitigate narrowband and/or bursty interference. The interleaving within the code block and interleaving within the symbols, in some examples, may allow pipelined implementation of decoding of the code blocks at the receiver, for faster processing. In some cases, systematic data and parity data may be interleaved within the code block data to provide a uniform distribution of the systematic data in time within the code block.

公开(公告)号：US20190124518A1

公开(公告)日：2019-04-25

申请号：US16227121

申请日：2018-12-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/14 ,  H04W74/08 ,  H04L5/00 ,  H04L5/26

Abstract: Wireless communications systems and methods related to reservation signal transmission and detection for spectrum sharing are provided. A first wireless communication device communicates, with a second wireless communication device, a reservation request (RRQ) signal to reserve a transmission opportunity (TXOP) in a shared spectrum, wherein the shared spectrum is shared by a plurality of network operating entities, and wherein the first wireless communication device and the second wireless communication device are associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device transmits a reservation response (RRS) signal indicating an interference tolerance level of the first wireless communication device.

公开(公告)号：US10270579B2

公开(公告)日：2019-04-23

申请号：US15012560

申请日：2016-02-01

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Taesang Yoo ,  Siddhartha Mallik ,  Jelena Damnjanovic

IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices are described for wireless communication. Wireless devices may exchange data using Medium Access Control (MAC) layer units known as transport blocks which may include a number of code blocks (CBs). A receiving device may attempt to decode each CB and send acknowledgement (ACK) and negative-acknowledgment (NACK) feedback to the transmitting device based on the whether each CB was successfully decoded. The receiving device may determine a format from two or more available formats for transmitting the ACK/NACK feedback. The format for the ACK/NACK feedback may be determined based at least in part on a number of CBs received and a number of CBs that have a NACK feedback. ACK/NACK feedback may be provided on an individual CB basis, or for bundles of CBs. The transmitting device may perform blind decoding of the received feedback to determine the ACK/NACK format and CBs that have NACK feedback.

公开(公告)号：US20190098663A1

公开(公告)日：2019-03-28

申请号：US16049313

申请日：2018-07-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Taesang Yoo ,  Siddhartha Mallik ,  Tamer Kadous

IPC: H04W74/08 ,  H04W72/04

Abstract: Wireless communications systems and methods related to considering channel variations for medium sharing in a spatial domain are provided. A first wireless communication device transmits one or more reservation response signals indicating spatial channel information in response to a reservation request for a transmission opportunity (TXOP) in a frequency spectrum. The first wireless communication device receives, from a second wireless communication device, a communication signal from a first spatial subspace during the TXOP based on the reservation request. In one embodiment, the first wireless communication device may repeat a transmission of the reservation response signal after transmitting a portion of the communication signal. In another embodiment, the first wireless communication device may include a channel variation parameter in the reservation response signal.

公开(公告)号：US20190090239A1

公开(公告)日：2019-03-21

申请号：US16196622

申请日：2018-11-20

Applicant: QUALCOMM Incorporated

Inventor： Jelena Damnjanovic ,  Aleksandar Damnjanovic ,  Taesang Yoo ,  Siddhartha Mallik ,  Madhavan Srinivasan Vajapeyam ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04W72/14 ,  H04W72/08 ,  H04W88/08

Abstract: Techniques are described for preempting resource allocations to one or more UEs in the event that delay sensitive data is received. A resource allocation of a number of symbols may be granted to a first user equipment (UE) for first associated data to be transmitted. Subsequently, data may be received for a second UE that is more delay sensitive than the first data. The resource allocation to the first UE may be preempted, and resources allocated to the second UE for the second data within a variable length transmission time interval (TTI) of the resource allocation to the first UE. UEs may monitor for preemption during transmissions to other UEs in order to receive new resource grants associated with the preempted resource grant. Whether a UE monitors transmissions for preemption may be determined based on a quality or service (QoS) of the UE.

公开(公告)号：US10219256B2

公开(公告)日：2019-02-26

申请号：US14984339

申请日：2015-12-30

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Durga Prasad Malladi ,  Yongbin Wei ,  Jelena Damnjanovic ,  Aleksandar Damnjanovic

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04W72/14

Abstract: Described herein are methods, systems, and apparatus for communicating control information over a primary component carrier (PCell). In one example, a method for wireless communication is described that includes communicating using an enhanced component carrier (eCC) on at least a secondary component carrier (SCell) in a carrier aggregation (CA) configuration. The method may also include using a PCell for control information pertaining to communications on the eCC. The control information may be channel state information (CSI) or acknowledgment/negative-acknowledgment (ACK/NACK) feedback information.

公开(公告)号：US10206117B2

公开(公告)日：2019-02-12

申请号：US15654299

申请日：2017-07-19

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/14 ,  H04W72/12 ,  H04B17/309 ,  H04W72/08 ,  H04W74/08 ,  H04W56/00

Abstract: Certain aspects of the present disclosure provide techniques for accessing shared spectrum in new radio (NR). An apparatus of a first operator may determine a synchronization configuration for the first operator and at least a second operator that share spectrum, identify, based on the synchronization configuration, at least a first channel reserved for contending for access to the spectrum, and reserve the access to the spectrum in the first channel to access at least a second channel for communications.