公开(公告)号：US10362603B2

公开(公告)日：2019-07-23

申请号：US14857762

申请日：2015-09-17

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  Yang Yang ,  Simone Merlin ,  George Cherian ,  Yan Zhou

IPC: H04W72/08 ,  H04W74/08 ,  H04W84/12

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be an AP. The AP determines an interference metric of a BSS having a plurality of STAs. The AP is in the BSS. The interference metric indicates a degree of interference in the BSS caused by one or more hidden nodes associated with the plurality of STAs. The AP determines whether the interference metric meets a threshold. The AP transmits, to the plurality of STAs, a frame including an indicator when the interference metric meets the threshold. The indicator indicates to each of the plurality of STAs to enable a medium reserving procedure. The medium reserving procedure reserves a medium for data transmission.

公开(公告)号：US20190109750A1

公开(公告)日：2019-04-11

申请号：US16149723

申请日：2018-10-02

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Alexandros Manolakos ,  Heechoon Lee ,  Yang Yang ,  Peter Gaal

IPC: H04L27/26 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described for configuration aspects of a tracking reference signal in New Radio. A base station may select a first burst duration and a second burst duration for a tracking reference signal (TRS) burst, the first burst duration being different from the second burst duration, and may transmit configuration information indicating the first burst duration and the second burst duration to a user equipment (UE). The base station may transmit a first TRS burst having the first burst duration and a second TRS burst having the second burst duration. The UE may detect the first TRS burst having the first burst duration and the second TRS burst having the second burst duration based at least in part on the configuration information, and perform resource tracking based at least in part on the detected first TRS burst and the second TRS burst.

公开(公告)号：US20190028119A1

公开(公告)日：2019-01-24

申请号：US16042874

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang

IPC: H03M13/13 ,  H03M13/00 ,  H04L1/00

Abstract: Methods, systems, and devices are described for wireless communications. A transmitting device may generate first encoded bits by encoding first information bits using a polar code of a first size, N, and transmit the first encoded bits to a receiving device. After determining the receiving device failed to decode the encoded bits, the transmitting device may generate second encoded bits by encoding the first information bits using a polar code of a second size, 2N. In some cases, the transmitting device may use the first encoded bits and one or more copied information bits to generate the second encoded bits. The transmitting device may transmit the second encoded bits to the receiving device, along with an indication of the number of copied information bits used to generate the second encoded bits. The number of copied information bits may be based on changing channel conditions or transmission parameters.

公开(公告)号：US20180351698A1

公开(公告)日：2018-12-06

申请号：US15988853

申请日：2018-05-24

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Yang Yang ,  Tao Luo

IPC: H04L1/00

Abstract: A transmitter may select a control message format of a set of possible control message formats, each of the possible control message formats corresponding to a different number of information bits. The transmitter may polar encode a payload in the selected control message format to generate and transmit a polar-encoded codeword, the payload having a same number of bits for any of the set of possible control message formats. A receiver may determine the set of possible control message formats for the polar-encoded codeword, and may decode the polar-encoded codeword to identify a candidate control message. The receiver may identify a control message format in the set of possible control message formats for the candidate control message based on multiple hypotheses corresponding to the different number of information bits, and may obtain control information from the candidate control message based on the identified control message format.

公开(公告)号：US20180331697A1

公开(公告)日：2018-11-15

申请号：US15976439

申请日：2018-05-10

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Yang Yang ,  Gabi Sarkis

IPC: H03M13/11 ,  H03M13/13 ,  H03M13/37

CPC classification number: H03M13/1148 ,  H03M13/13 ,  H03M13/37 ,  H04W4/70

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may decode a polar coded codeword using a successive cancelation (SC) or successive cancelation list (SCL) decoder. The construction of the codeword may be based on multiple factors, such as a decoding complexity, reliability, codeword size, number of information bits, type of communication, etc. In some cases, multiple codeword constructions may be compared (e.g., with various weights applied to the relevant factors) and an optimal construction selected. Techniques described herein are applicable both to the selection of an optimal codeword as well as decoding operations. Specifically, the described techniques may allow for a reduced decoding complexity through the use of subtree pruning, in which characteristics of the polar scheme (e.g., the scheme selected by the encoder) may be exploited to reduce the complexity of the decoding operation.

公开(公告)号：US20180287640A1

公开(公告)日：2018-10-04

申请号：US15937503

申请日：2018-03-27

Applicant: QUALCOMM Incorporated

Inventor： Jaime Menjay Lin ,  Yang Yang ,  Gabi Sarkis ,  Rotem Cooper ,  John Edward Smee

IPC: H03M13/37 ,  H04L1/00 ,  H03M13/00

CPC classification number: H03M13/3746 ,  H03M13/13 ,  H03M13/6502 ,  H04L1/0041 ,  H04L1/0054 ,  H04L1/0057

Abstract: Techniques are described to address run-time issues and other considerations of data structure reorganization operations executed while decoding a polar code. A receiving entity (e.g., a user equipment or a base station) may partition an array, or other data structure, into sections. The array may be used during a list decoding operation of a polar code. As the array is populated with path elements for candidate paths, each section may be organized and a permutation pattern calculated for each section. Upon identifying a section reorganization event, the array or subsections of the array may be reorganized according the permutation patterns determined for each section.

公开(公告)号：US20180184410A1

公开(公告)日：2018-06-28

申请号：US15694143

申请日：2017-09-01

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Yang Yang ,  Heechoon Lee ,  Bilal Sadiq ,  June Namgoong

IPC: H04W72/04 ,  H04L5/00

Abstract: User equipment (UE)-specific information may be transmitted within a control resource set configured to carry resources common to UEs within a system. The UE-specific information may be associated with a search space having an aggregation level different from aggregation levels used with the common control resources and may occupy different modulation symbols within the common control resource set (e.g., to support flexible scheduling for multiple UEs). A base station and UE may operate in a system using one or more control resource sets within a system bandwidth. The UE may detect common control resources by monitoring decoding candidates in the control resource set according to a first set of aggregation levels. The UE may detect UE-specific control resources by monitoring decoding candidates in the control resource set according to other aggregation levels. The UE and base station may communicate based on control information obtained from the monitoring.

公开(公告)号：US20180098307A1

公开(公告)日：2018-04-05

申请号：US15663154

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Peter Pui Lok Ang ,  Wanshi Chen ,  Heechoon Lee ,  Jing Jiang ,  Tingfang Ji ,  Tao Luo

IPC: H04W72/04 ,  H04L25/02 ,  H04W76/04

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/024 ,  H04W72/0446 ,  H04W72/1289 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communication are described. A method may include receiving a control transmission from a base station, identifying a control channel search space organized according to a nested structure, the control channel search space including a plurality of control channel candidates associated with one or more control channel elements (CCEs) and an aggregation level, and searching the received control transmission to identify a control channel for the UE using the plurality of control channel candidates. Another method may include determining whether to reorder resource element group (REG) indices for a received control channel transmission based, at least in part, on a transmission mode associated with the control channel transmission. Another method may include decoding a received control channel transmission, where the downlink control information (DCI) formats may be constrained to an integer multiple of a predetermined base number of bits N.

公开(公告)号：US20180092002A1

公开(公告)日：2018-03-29

申请号：US15466663

申请日：2017-03-22

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  June Namgoong ,  Yang Yang ,  Jing Jiang

IPC: H04W28/20 ,  H04W72/08 ,  H04W72/04 ,  H04W72/12 ,  H04L5/00

Abstract: A method at a scheduling entity might include determining that interference is present from a neighboring scheduling entity, which implements a second subcarrier spacing that is different from a first subcarrier spacing of the scheduling entity. The scheduling entity might request the neighboring scheduling entity to negotiate a bandwidth group (BWG), where the BWG is a bandwidth occupied by downlink subcarriers within which a transmission parameter is maintained. The method might include negotiating a bandwidth of the bandwidth group and transmitting, if negotiating is successful, downlink data to a scheduled entity served by the scheduling entity according to the negotiated bandwidth. The transmission parameter might be a precoder, rank, modulation order, power inside each BWG, or numerology. The numerology might be scalable and might be a combination of subcarrier spacing and cyclic prefix (CP) overhead, The subcarrier spacing might be scaled while keeping constant the CP overhead as a percentage of a symbol duration.

公开(公告)号：US20180048426A1

公开(公告)日：2018-02-15

申请号：US15650603

申请日：2017-07-14

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Jamie Menjay Lin ,  Peter Pui Lok Ang ,  Gabi Sarkis ,  John Edward Smee

IPC: H04L1/00 ,  H03M13/29 ,  H03M13/11 ,  H04J13/00

CPC classification number: H04L1/0071 ,  H03M13/1102 ,  H03M13/29 ,  H03M13/2957 ,  H03M13/3972 ,  H03M13/41 ,  H03M13/413 ,  H03M13/6502 ,  H04J13/0003 ,  H04L1/0009 ,  H04L1/0041 ,  H04L1/0056 ,  H04L1/0059 ,  H04L1/0067

Abstract: Methods, systems, and devices for wireless communication are described. The method, systems, and devices may include receiving a plurality of sets of input bits associated with respective transmission symbol periods at an encoder of a transmitting device, the plurality of sets of input bits associated with a single input vector to be encoded into a single codeword. The encoder may process the plurality of sets of input bits to generate a plurality of sets of output bits associated with respective transmission symbol periods, and output a first of the plurality of sets of output bits associated with a first of the plurality of sets of input bits prior receiving a second of the plurality of sets of input bits, the second of the plurality of sets of input bits being received at the encoder subsequent to the first of the plurality of sets of input bits.