公开(公告)号：US10834603B2

公开(公告)日：2020-11-10

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: H04W72/04 ,  H04W16/14 ,  H04W74/08 ,  H04L5/00 ,  H04L5/26 ,  H04L27/26 ,  H04W56/00 ,  H04W74/00

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：US10826581B1

公开(公告)日：2020-11-03

申请号：US16517217

申请日：2019-07-19

Applicant: QUALCOMM Incorporated

Inventor： Parham Noorzad ,  Siddhartha Mallik ,  Taesang Yoo

IPC: H04B7/04 ,  H04B7/0456

Abstract: A machine-learning based multiple-input, multiple-output (MIMO) demapper for a wireless device may include a classifier that selects which MIMO demapper to use for a sample for a particular tone. For example, a wireless device may receive via a plurality of antennas a plurality of signals including a plurality of tones. The wireless device may determine selection features for each tone of the plurality of tones. The wireless device may select, for each tone, by the classifier based on the selection features, a selected demapper from at least a first MIMO demapper and a second MIMO demapper. The second MIMO demapper may have a different performance characteristic than the first MIMO demapper. The wireless device may detect, for each tone, one or more streams using the selected demapper for the tone. A stream may refer to a sequence of bits.

公开(公告)号：US10764840B2

公开(公告)日：2020-09-01

申请号：US15964851

申请日：2018-04-27

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/32 ,  H04W72/04 ,  H04W52/40

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for sounding reference signal (SRS) coordination, power control, and synchronization for distributed coordinated multipoint (CoMP) using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communications by a network entity includes determining a first amount of transmission (Tx) power for transmission of signals originating from a first cluster center that is connected to the network entity, determining a second amount of Tx power for transmission of signals originating from at least a second cluster center that is connected to the network entity, and transmitting signals for one or more user equipment (UEs) served by the first cluster center and one or more UEs served by the second cluster center based on the first amount of Tx power and the second amount of Tx power.

公开(公告)号：US10708906B2

公开(公告)日：2020-07-07

申请号：US14532714

申请日：2014-11-04

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Siddhartha Mallik ,  Arumugam Chendamarai Kannan ,  Jelena Damnjanovic ,  Madhavan Srinivasan Vajapeyam ,  Jun Wang ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L5/14 ,  H04L27/26 ,  H04L12/26 ,  H04W16/32 ,  H04W74/08 ,  H04J11/00

Abstract: Methods, systems, and devices are described for hierarchical communications and low latency support within a wireless communications system. An eNB and/or a UE may be configured to operate within the wireless communications system which is at least partially defined through a first layer with first layer transmissions having a first subframe type and a second layer with second layer transmissions having a second subframe type. The first subframe type may have a first round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, and the second layer may have a second RTT that is less than the first RTT. Subframes of the first subframe type may be multiplexed with subframes of the second subframe type, such as through time division multiplexing. In some examples symbols of different duration may be multiplexed such that they different symbol durations coexist.

公开(公告)号：US10581722B2

公开(公告)日：2020-03-03

申请号：US15659584

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: H04B7/06 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H03M13/09 ,  H04B17/24 ,  H04B7/216 ,  H04L12/18 ,  H04L12/24 ,  H04W24/02 ,  H04W24/04 ,  H04W24/08 ,  H04W48/08 ,  H04W52/14 ,  H04W52/16 ,  H04W52/24 ,  H04W52/34 ,  H04W52/38 ,  H04W52/42 ,  H04W52/50 ,  H04L12/761 ,  H04W52/54 ,  H04B17/318 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04W52/56 ,  H04W76/22 ,  H04W76/19 ,  H04W92/20

Abstract: Various aspects of the disclosure relate to power control for independent links. For example, power control at a device may be based on transmissions on multiple 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). For example, the first device may communicate with a second device (e.g., a TRP) via a first link and communicate with a third device (e.g., a TRP) via a second link. In some scenarios, power control for the first device may be based on power control commands received on multiple links. In some scenarios, a power control constraint may be met taking into account the transmission power on multiple links.

公开(公告)号：US10555220B2

公开(公告)日：2020-02-04

申请号：US15948764

申请日：2018-04-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivasa Yerramalli ,  Tao Luo ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram

IPC: H04W28/26 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W72/12

Abstract: Techniques are described for wireless communication. A first method includes contending for access to a first channel of a radio frequency spectrum, and transmitting, upon winning contention for access to the first channel, a first channel reservation indication. The contending may be performed by a first node operating according to a first radio access technology. The first channel reservation indication may be understood by a second node operating according to a second radio access technology.

公开(公告)号：US20200008108A1

公开(公告)日：2020-01-02

申请号：US16569193

申请日：2019-09-12

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

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：US10484135B2

公开(公告)日：2019-11-19

申请号：US14968376

申请日：2015-12-14

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Tao Luo ,  Jing Jiang ,  Tingfang Ji ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Joseph Binamira Soriaga ,  Kambiz Azarian Yazdi ,  Peter Gaal ,  John Edward Smee ,  Chih Ping Li

IPC: H04L1/00 ,  H03M13/29 ,  H04L1/18

Abstract: Coding for bursty interference is discussed in which a base station receives data bits for transmission. The base station may generate code blocks including information bits and parity bits. The base station may also generate parity check code blocks including information bits corresponding to information bits of the generated code blocks. The base station may transmit the code blocks and the parity check code blocks to a mobile device to improve decoding. When errors are detected, the mobile device may decode the received code blocks using hard or soft parity checks and the parity check code blocks.

公开(公告)号：US10476781B2

公开(公告)日：2019-11-12

申请号：US15659592

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: H04L12/761 ,  H04L12/18 ,  H03M13/09 ,  H04B17/318 ,  H04B17/24 ,  H04W52/54 ,  H04W52/34 ,  H04W52/24 ,  H04B7/06 ,  H04W72/12 ,  H04W76/22 ,  H04L12/24 ,  H04W72/04 ,  H04W52/56 ,  H04W52/14 ,  H04W52/16 ,  H04W52/38 ,  H04W52/42 ,  H04W52/50 ,  H04B7/216 ,  H04L5/00 ,  H04W72/08 ,  H04W24/08 ,  H04W24/02 ,  H04W76/19 ,  H04W24/04 ,  H04W48/08 ,  H04W92/20 ,  H04L1/18 ,  H04L1/00

Abstract: Various aspects of the disclosure relate to feedback for independent links. For example, channel state feedback may be based on the channel state of multiple 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). In some scenarios, channel state information (CSI) feedback may take into account the CSI-reference signals (CSI-RSs) from multiple links. For example, CSI feedback may be based on CSI-RSs from multiple links if the antenna sub-arrays for the links are close to one another. As another example, a decision as to whether CSI feedback is to be based on CSI-RSs from multiple links may depend on channel conditions.

公开(公告)号：US10356626B2

公开(公告)日：2019-07-16

申请号：US15636372

申请日：2017-06-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/14 ,  H04W28/26 ,  H04W74/08 ,  H04W24/08 ,  H04W74/04 ,  H04W74/00 ,  H04W72/10 ,  H04W72/04

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.