公开(公告)号：SG11201908818YA

公开(公告)日：2019-11-28

申请号：SG11201908818Y

申请日：2017-08-11

Applicant: QUALCOMM INC

Inventor： HAO CHENXI ,  ZHANG YU

IPC: H04W24/00

Abstract: a FIG. 2 200 r i2j 0 215-a 215-6 215-c 215-d 105-a 205 115-a •• • 215-n (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT mu °million ono looi olo Hum ioo Mo lio imio oimIE (10) International Publication Number WO 2018/201640 Al 1-1 O 71' 1-1 O N 00 1-1 O N O (51) International Patent Classification: H04W 24/00 (2009.01) (21) International Application Number: PCT/CN2017/097102 (22) International Filing Date: 11 August 2017 (11.08.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: PCT/CN2017/083251 05 May 2017 (05.05.2017) CN (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors; and (71) Applicants US only): HAO, Chenxi [CN/CN]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). ZHANG, Yu [CN/CN]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: NTD PATENT & TRADEMARK AGENCY LIMITED; 10th Floor, Tower C, Beijing Global Trade Center, 36 North Third Ring Road East, Dongcheng Dis- trict, Beijing 100013 (CN). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, = (54) Title: PARTIAL BAND CONFIGURATION FOR CHANNEL STATE INFORMATION (57) : Methods, systems, and devices for wireless communication are described that provide for the utilization of multiple partial bands used in the transmission of one or more channel state information (CSI) reference signals (CSI-RSs). The partial bands may be non-consecutive in the frequency domain, time domain, or a combination thereof and each of which may be precoder using a different precoder configuration. The time intervals, cycling granularity, and number of ports may vary between partial bands. Using RSs transmitted via the multiple partial bands, a user equipment (UE) may determine a channel state parameter for each partial band, which may be used for channel feedback. [Continued on next page] WO 2018/201640 Al O II SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3))

公开(公告)号：CA3063242A1

公开(公告)日：2018-12-20

申请号：CA3063242

申请日：2018-06-13

Applicant: QUALCOMM INC

Inventor： HAO CHENXI ,  ZHANG YU ,  CHEN WANSHI ,  WEI CHAO ,  WU LIANGMING

IPC: H04W24/00

Abstract: Methods, systems, devices, and apparatus for wireless communication are described that relate to transmission of a set of precoded reference signals, and using a physical resource group (PRG) size for the resources carrying the set of reference signals for channel estimation at a user equipment (UE). For example, a base station may apply a precoding matrix to a set of reference signals, and the reference signals may be configured on a set of resources. In such cases, the resources including these reference signals having a same precoding may be included in a PRG, and a size of the PRG may refer to a number of precoded reference signals for which the precoding is the same. Based on the received reference signals and the PRG size the UE may perform channel estimation based on the PRG size and transmit channel state information (CSI) to the base station.

公开(公告)号：SG11202110705PA

公开(公告)日：2021-11-29

申请号：SG11202110705P

申请日：2020-05-01

Applicant: QUALCOMM INC

Inventor： HAO CHENXI ,  ZHANG YU

IPC: H04B7/06 ,  H04B7/08

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression and, more particularly, to techniques for reporting frequency domain (FD) bases with a reference index across layers

公开(公告)号：SG11202100448QA

公开(公告)日：2021-02-25

申请号：SG11202100448Q

申请日：2019-08-13

Applicant: QUALCOMM INC

Inventor： HAO CHENXI ,  ZHANG YU ,  WU LIANGMING ,  XU HAO ,  CHEN WANSHI ,  GAAL PETER

IPC: H04B1/10 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. In one aspect, the described techniques provide for identifying interference signals on multiple layers or resources and determining whether the interference signals transmitted on a particular layer or resource were precoded using linear precoding (LP) or NLP. In this aspect, a receiving device may equalize signals received from a transmitting device (e. g., filter out interference signals) based on determining whether the interference signals were precoded using a first type of precoding (e. g., linear precoding (LP)) or a second type of precoding (e. g., NLP). In another aspect, the described techniques provide for performing interference measurements on signals precoded using NLP based on categorizing interference resources as being precoded using LP or NLP. In this aspect, a receiving device may perform and report measurements differently for interference signals precoded using LP and interference signals precoded using NLP.

公开(公告)号：SG11202003573QA

公开(公告)日：2020-06-29

申请号：SG11202003573Q

申请日：2018-11-28

Applicant: QUALCOMM INC

Inventor： HAO CHENXI ,  ZHANG YU ,  HUANG YI ,  WU LIANGMING ,  CHEN WANSHI ,  MANOLAKOS ALEXANDROS

IPC: H04W72/04

Abstract: Certain aspects of the present disclosure relate to methods and apparatus relating to UCI layer mapping. According to certain aspects, a mapping rule maps UCI to one or more layers of a physical uplink shared channel (PUSCH) transmission based on at least one of a rank of the PUSCH transmission or a modulation and coding scheme (MCS) of the PUSCH transmission.

公开(公告)号：SG11202003338TA

公开(公告)日：2020-05-28

申请号：SG11202003338T

申请日：2018-10-25

Applicant: QUALCOMM INC

Inventor： HAO CHENXI ,  MANOLAKOS ALEXANDROS ,  LUO TAO ,  ZHANG YU

IPC: H04W52/14 ,  H04W52/34

Abstract: Methods, systems, and devices for wireless communication are described that support beam failure determination based on a dynamic range of transmission power ratios between two reference signals (e.g., between a channel state information reference signal (CSI-RS) and a demodulation reference signal (DMRS) of a physical downlink control channel (PDCCH)). A wireless device may identify the dynamic range of transmission power ratios that may be used by a base station (e.g., via indications of maximum and minimum transmission power ratios, indications of one or more offsets from some average transmission power ratio, etc. sent from the base station). The wireless device may use the identified dynamic range of transmission power ratios, along with a CSI-RS measurement, to determine a range of hypothetical block error rates (BLERs). Values within the range of hypothetical BLERs may be compared to a threshold in order to determine a beam failure status (e.g., a beam failure).

公开(公告)号：SG11202000185UA

公开(公告)日：2020-02-27

申请号：SG11202000185U

申请日：2018-08-10

Applicant: QUALCOMM INC

Inventor： HAO CHENXI ,  WU LIANGMING ,  ZHANG YU ,  XU HAO ,  WEI CHAO ,  CHEN WANSHI

IPC: H04B7/04

Abstract: Methods, systems, and devices for wireless communication are described. In wireless systems supporting multiple-input, multiple-output (MIMO) transmissions, devices may implement beam-forming to improve reliability of communications. A user equipment (UE) may select a set of beams, and corresponding beam indices, for communication based on reference signals received from a base station. The UE may determine values corresponding to each of the beam indices using a scalable set of tables. For example, the UE may select a subset of the tables based on the number of selected beams, and may determine the values based on these tables. In this way, the UE may efficiently store sets of tables for multiple different configurations. The UE may sum the corresponding values to obtain a combination index value, and may transmit the combination index value to the base station. The base station may determine the selected beams based on this combination index value.

公开(公告)号：SG11202000151XA

公开(公告)日：2020-02-27

申请号：SG11202000151X

申请日：2018-08-10

Applicant: QUALCOMM INC

Inventor： HAO CHENXI ,  ZHANG YU ,  WU LIANGMING ,  WEI CHAO ,  CHEN WANSHI ,  XU HAO

IPC: H04W24/02

Abstract: Some wireless communication networks may improve communication reliability and/or throughput using multiple-input, multiple-output (MIMO) schemes. MIMO operation may in turn be supported by the use of channel state information reference signals (CSI-RS), which may allow communicating devices to estimate and leverage multipath channel conditions. However, the signaling used to support such communications may consume significant resources. In accordance with the described techniques, a user equipment (UE) may identify non-zero-power beams based on received CSI-RS. The non-zero-power beams may contribute to the final precoding vector. Rather than transmitting beam coefficients relating to zero-power beams, the UE may instead indicate a presence of these zero-power beams to the base station (e.g., by indicating a number of non-zero-power beams). Such techniques may reduce overhead of the communications or otherwise benefit the system.

公开(公告)号：AU2019473996A1

公开(公告)日：2022-04-28

申请号：AU2019473996

申请日：2019-11-14

Applicant: QUALCOMM INC

Inventor： LI QIAOYU ,  WEI CHAO ,  CHEN WANSHI ,  XU HUILIN ,  LEI JING ,  ANG PETER PUI LOK ,  HUANG MIN ,  ZHANG YU ,  HAO CHENXI ,  XU HAO

IPC: H04W88/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a primary user equipment (UE) may transmit, on a sidelink, information indicating a set of sidelink random access configurations corresponding to a set of uplink random access configurations; receive, on the sidelink and from a secondary UE, a random access signal based at least in part on a selected sidelink random access configuration of the set of sidelink random access configurations, wherein the selected sidelink random access configuration corresponds to a selected uplink random access configuration of the set of uplink random access configurations; and selectively performing a random access procedure in accordance with the selected uplink random access configuration. Numerous other aspects are provided.

公开(公告)号：SG11202108186UA

公开(公告)日：2021-08-30

申请号：SG11202108186U

申请日：2020-02-04

Applicant: QUALCOMM INC

Inventor： LI QIAOYU ,  WU LIANGMING ,  HAO CHENXI ,  ZHANG YU ,  WEI CHAO ,  XU HAO ,  CHERAGHI PARISA ,  CHEN WANSHI

IPC: H04B7/08 ,  H04B7/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit, in a first part of two-part channel state information (CSI), a rank indication (RI) and an indication of one or more numbers of first transfer domain coefficients to be used to characterize compressed CSI for one or more layers; and transmit, in a second part of the two-part CSI, an indication of one or more numbers of second transfer domain coefficients to be used to characterize compressed CSI for one or more beams for the one or more layers. Numerous other aspects are provided.