公开(公告)号：US20200077439A1

公开(公告)日：2020-03-05

申请号：US16677583

申请日：2019-11-07

Applicant: QUALCOMM Incorporated

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

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

Abstract: Methods, systems, and devices for wireless communication are described. A wireless communication system may utilize a listen before talk (LBT) procedure prior to transmission. A base station may perform an enhanced clear channel assessment (eCCA) on one channel and a single clear channel assessment (CCA) on another channel. The base station may then send a grant for a user equipment (UE) to transmit on both channels. The UE may receive the grant, and perform a single CCA on the first channel and an eCCA on the second channel. The UE may then transmit uplink information on both the first channel and the second channel. That is, the base station may send an opportunistic grant for transmitting on the second channel even though it may not have passed eCCA at the base station. The UE may then use the channel if it passes an eCCA.

公开(公告)号：US20200077394A1

公开(公告)日：2020-03-05

申请号：US16678678

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

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

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

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：US20200067639A1

公开(公告)日：2020-02-27

申请号：US16111036

申请日：2018-08-23

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Siddhartha Mallik

IPC: H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment (UE) may monitor for a decoding candidate of a codeword, wherein the codeword corresponds to a set of received bit metrics, and the decoding candidate corresponds to a plurality of information bits encoded using a polar code, determine a composite detection metric for the codeword for the decoding candidate, where the composite detection metric is derived from a subset of bit metrics for an intermediate polarization layer of the polar code, and determine a classification for performing a list decoding process on the codeword according to the decoding candidate based at least in part on the composite detection metric.

公开(公告)号：US10554540B2

公开(公告)日：2020-02-04

申请号：US15659580

申请日：2017-07-25

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Juan Montojo ,  Tamer Kadous ,  Junyi Li ,  Xiaoxia Zhang ,  Jing Sun ,  Taesang Yoo ,  Siddhartha Mallik

IPC: H04W72/12 ,  H04L12/761 ,  H03M13/09 ,  H04L12/18 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04B7/216 ,  H04W52/14 ,  H04W52/16 ,  H04W52/24 ,  H04W52/38 ,  H04W52/42 ,  H04W52/50 ,  H04W52/56 ,  H04L12/24 ,  H04W76/22 ,  H04W24/08 ,  H04W24/02 ,  H04W76/19 ,  H04W24/04 ,  H04W48/08 ,  H04W92/20

Abstract: Various aspects of the disclosure relate to controlling allocations for independent links. For example, a device may dynamically control the uplink/downlink allocations for different links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). At least one device may signal the uplink/downlink allocation for the different links. If the isolation between links is high, the links may use different time division duplexed (TDD) or frequency division duplexed (FDD) subframe structures. If the isolation is low or for certain types of information (e.g., control information), the direction of transmission for one link may be constrained to be the same as the direction of transmission for another link (e.g., the links may use the same TDD/FDD frame structures). Also, sounding on different links may be time division multiplexed.

公开(公告)号：US20200022029A1

公开(公告)日：2020-01-16

申请号：US16584366

申请日：2019-09-26

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Kamel Sadek ,  Yisheng Xue ,  Siddhartha Mallik ,  Tamer Kadous ,  Xiaoxia Zhang ,  Taesang Yoo ,  Michael Mingxi Fan ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Jing Sun

IPC: H04W28/26 ,  H04W52/24 ,  H04L5/00 ,  H04B7/06

Abstract: A medium reservation framework is disclosed for coexistence of coordinated and uncoordinated wireless networks in licensed spectrum and shared spectrum. The proposed medium reservation framework organically takes into account operating regimes with different numbers of Tx/Rx antennas per node, provides flexibility in trading off medium contention aggressiveness and power saving, leverages the inherent synchronization nature of NR, and covers both coordinated and uncoordinated operation scenarios. Various aspects of the medium reservation framework may be centered on one or more combinations of some basic building blocks, such as an operation grid, synchronization signals, and reservation messages, such as a reservation request signal (RRQ) and one or more a reservation response signals (RRS).

公开(公告)号：US10470048B2

公开(公告)日：2019-11-05

申请号：US15641780

申请日：2017-07-05

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Taesang Yoo ,  Seyed Ali Akbar Fakoorian ,  Siddhartha Mallik ,  Juan Montojo ,  Jing Lei

IPC: H04W16/14 ,  H04L5/14 ,  H04W72/04 ,  H04W74/00 ,  H04W74/02 ,  H04W74/08 ,  H04L5/00

Abstract: Wireless communications systems and methods related to dynamic time-division duplexing (TDD) and self-contained subframe-based communications in a shared spectrum are provided. A first wireless communication device communicates a control information communication protection request over a shared spectrum. The shared spectrum is shared by a plurality of network operating entities based on priorities. The first wireless communication device is associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device communicates, with a second wireless communication device associated with the first network operating entity, control information in a first link direction during a transmission opportunity (TXOP) in the shared spectrum. The first wireless communication device communicates, with the second wireless communication device, data in a second link direction during the TXOP.

公开(公告)号：US10462676B2

公开(公告)日：2019-10-29

申请号：US15707824

申请日：2017-09-18

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Xiaoxia Zhang ,  Taesang Yoo

IPC: H04W16/14 ,  H04L5/00 ,  H04B7/024 ,  H04B7/0417 ,  H04W72/04 ,  H04W74/08 ,  H04B17/318 ,  H04W16/32

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：US10455455B2

公开(公告)日：2019-10-22

申请号：US15596692

申请日：2017-05-16

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/26 ,  H04W16/14 ,  H04W52/34 ,  H04W72/04 ,  H04W72/10 ,  H04W74/08 ,  H04L29/08

Abstract: Methods and apparatuses for wireless communications are described. The aspects relate to a frame structure for new radio shared spectrum. For instance, the frame structure may provide shared medium access by multiple operators in a new radio shared spectrum system. Specifically, the present aspects provide for utilizing reservation preambles associated with a distinct operator for announcing to other operators a reservation of at least one transmission opportunity of a given frame in the new radio shared spectrum.

公开(公告)号：US20190320323A1

公开(公告)日：2019-10-17

申请号：US16453884

申请日：2019-06-26

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W16/14 ,  H04W24/08 ,  H04W74/08 ,  H04W28/26

Abstract: Wireless communications systems and methods related to reclaiming of resources in a shared frequency spectrum shared by multiple operators are provided. A first wireless communication device associated with a first operator of a plurality of operators identifies a transmission opportunity in a shared frequency spectrum shared by the plurality of operators, wherein the first operator has priority among the plurality of operators for accessing the shared frequency spectrum in the transmission opportunity. The first wireless communication device communicates with a second wireless communication device associated with the first operator, in the transmission opportunity without a prior reservation of the transmission opportunity.

公开(公告)号：US20190312671A1

公开(公告)日：2019-10-10

申请号：US16376895

申请日：2019-04-05

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Siddhartha Mallik ,  Tamer Kadous

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04L5/02

Abstract: Methods, systems, and devices for wireless communications are described. In accordance with the described techniques, communicating devices (e.g., an encoder and decoder) may apply an orthogonal cover code to a polar codeword to reduce cross-correlation between different codewords. For example, such techniques may reduce power consumption at a decoding device by providing for earlier decoding termination (e.g., as a result of the reduced cross-correlation). Techniques for generating the cover codes (e.g., on a per-aggregation level basis) and applying the cover codes (e.g., within a search space) are described. Additionally or alternatively, the described techniques may relate to seeding of reference signals used to support decoding of the codewords. Improved orthogonality between reference signal seeds may further suppress codeword recipient ambiguity.