公开(公告)号：US11509364B2

公开(公告)日：2022-11-22

申请号：US15845585

申请日：2017-12-18

Applicant: QUALCOMM Incorporated

Inventor： Kaushik Chakraborty ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson ,  Xiao feng Wang ,  Shengbo Chen

IPC: H04W4/00 ,  H04B7/0456 ,  H04W72/04 ,  H04W24/10 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0452 ,  H04L5/14 ,  H04L5/16

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of whether to use uplink reference signals or downlink reference signals for uplink precoder determination. The UE may selectively transmit a plurality of uplink reference signals or one or more measurement reports based at least in part on the indication, wherein the one or more measurement reports are determined based at least in part on measuring a plurality of downlink reference signals. The UE may receive an indication of a precoder, of a plurality of precoders, to be used to precode an uplink communication, wherein the precoder is identified based at least in part on the plurality of uplink reference signals or the one or more measurement reports. The UE may precode the uplink communication using the precoder. Numerous other aspects are provided.

公开(公告)号：US11212019B2

公开(公告)日：2021-12-28

申请号：US15714316

申请日：2017-09-25

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao feng Wang ,  Arvind Sridharan ,  Hao Xu

IPC: H04L12/00 ,  H04B17/309 ,  H04W4/70 ,  H04W52/32 ,  H04W48/12 ,  H04L27/26 ,  H04L29/08 ,  H04W88/02

Abstract: Techniques described herein permit a narrowband Internet of Things (NB-IoT) user equipment (UE) to combine narrowband reference signals (NRS) with other signals, which the NB-IoT UE already receives, to improve measurement accuracy. The UE may report whether the UE is capable of combining the NRS with another signal to determine a combined signal quality parameter, and may report the combined signal quality parameter to a base station.

公开(公告)号：US20210352709A1

公开(公告)日：2021-11-11

申请号：US17328714

申请日：2021-05-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Peter Gaal ,  Xiao feng Wang ,  Juan Montojo ,  Yi Huang ,  Renqiu Wang ,  Seyong Park

IPC: H04W72/14 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described that support discontinuous scheduling. A base station may transmit, to a user equipment (UE), a grant of resources of a communication channel over a multiple of aggregated TTIs. The UE may monitor a control channel for the grant of resources transmitted by base station. The base station and the UE may identify a location of an excluded TTI within the plurality of aggregated TTIs. The excluded TTI may correspond to a TTI for communicating synchronization signals, random access channel (RACH) signals, or the like. The base station may communicate with the UE via the resources of the communication channel over at least a subset of the aggregated TTIs based on the grant and the location of the excluded TTI.

公开(公告)号：US10779240B2

公开(公告)日：2020-09-15

申请号：US16678921

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Makesh Pravin John Wilson ,  Xiao feng Wang ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04W52/14 ,  H04W52/54 ,  H04W52/32 ,  H04W52/34 ,  H04W52/42 ,  H04W52/36 ,  H04W88/02 ,  H04W88/08

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive one or more downlink control information (DCI) transmissions including a plurality of transmit power control (TPC) commands. The plurality of TPC commands may relate to an uplink channel transmit power for a plurality of uplink beam-pairs. The wireless communication device may determine the uplink channel transmit power for the plurality of uplink beam-pairs based at least in part on the plurality of TPC commands. Numerous other aspects are provided.

公开(公告)号：US10736113B2

公开(公告)日：2020-08-04

申请号：US15424519

申请日：2017-02-03

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wanshi Chen ,  Xiao feng Wang ,  Peter Gaal ,  Juan Montojo ,  Alberto Rico Alvarino ,  Jing Lei ,  Seyed Ali Akbar Fakoorian

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  G01S5/02 ,  H04W56/00 ,  H04W72/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may establish narrowband communications. The base station may configure positioning reference signal (PRS) resources based at least in part on wideband or narrowband transmissions, and a UE may receive the PRS transmissions over one or more narrowband regions. The UE, may determine PRS resources and receive portions of wideband PRS transmissions that are transmitted in one or more narrowband regions of the system bandwidth. The base station may configure PRS resources separately for narrowband devices, such as according to a bandwidth of the narrowband devices or with a single PRS tone per symbol compared to two PRS tones per symbol that may be used for wideband PRS transmissions. The base station may perform positioning measurements for a UE based at least in part on timing of uplink transmissions from the UE.

公开(公告)号：US10735117B2

公开(公告)日：2020-08-04

申请号：US15714285

申请日：2017-09-25

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao feng Wang ,  Arvind Sridharan ,  Hao Xu

IPC: H04L12/00 ,  H04B17/309 ,  H04W4/70 ,  H04W52/32 ,  H04W48/12 ,  H04L27/26 ,  H04L29/08 ,  H04W88/02

Abstract: Techniques described herein permit a narrowband Internet of Things (NB-IoT) user equipment (UE) to combine narrowband reference signals (NRS) with other signals, which the NB-IoT UE already receives, to improve measurement accuracy. These other signals may require different modifications to be combined with the NRS depending on the type of signal. Techniques described herein provide indications of how the UE is to combine different types of signals with an NRS in order to improve measurement accuracy.

公开(公告)号：US20200077342A1

公开(公告)日：2020-03-05

申请号：US16678921

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Makesh Pravin John Wilson ,  Xiao feng Wang ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04W52/14 ,  H04W52/32 ,  H04W52/54 ,  H04W52/36 ,  H04W52/34 ,  H04W52/42

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive one or more downlink control information (DCI) transmissions including a plurality of transmit power control (TPC) commands. The plurality of TPC commands may relate to an uplink channel transmit power for a plurality of uplink beam-pairs. The wireless communication device may determine the uplink channel transmit power for the plurality of uplink beam-pairs based at least in part on the plurality of TPC commands. Numerous other aspects are provided.

公开(公告)号：US10542491B2

公开(公告)日：2020-01-21

申请号：US15714149

申请日：2017-09-25

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Mungal Singh Dhanda ,  Alberto Rico Alvarino ,  Hao Xu ,  Wanshi Chen ,  Xiao feng Wang

IPC: H04W28/08 ,  H04W52/02 ,  H04W72/08 ,  H04W76/28 ,  H04W72/12 ,  H04W72/04 ,  H04W24/02

Abstract: Techniques described herein use a wakeup signal to indicate to a user equipment (UE) whether an upcoming control channel signal resource includes information relevant to the UE. In this way, the UE can wake up to perform complex control channel signal processing only when the control channel includes signals relevant to the UE, thereby conserving battery power and resources of the UE. Such techniques are particularly suited to MTC UEs, NB-IoT UEs, and/or the like, which may communicate with a network only occasionally, and which may be located in remote locations where changing or recharging a battery is difficult.

公开(公告)号：US10484219B2

公开(公告)日：2019-11-19

申请号：US15674329

申请日：2017-08-10

Applicant: QUALCOMM Incorporated

Inventor： Xiao feng Wang ,  Junyi Li ,  Zhi-Zhong Yu

IPC: H04L27/20 ,  H04L27/26 ,  H04L25/03 ,  H04L1/20 ,  H04L5/00

Abstract: A method of wireless communication by a user equipment includes determining an allocation of a set of tones in a symbol for conveying data. The method further includes determining to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones. The method further includes modulating the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.

公开(公告)号：US10484066B2

公开(公告)日：2019-11-19

申请号：US15943586

申请日：2018-04-02

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Xiao feng Wang ,  Junyi Li ,  Juergen Cezanne ,  Ashwin Sampath

IPC: H04L5/12 ,  H04B7/06 ,  H04W56/00 ,  H04W24/10 ,  H04L5/00 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communication are described. In aspects of the present disclosure, a user equipment (UE) may report metrics (e.g., received signal power, beam identifier) about synchronization signal (SS) beams using the same (e.g., or a similar) framework that is used for channel state information reference signal (CSI-RS) reporting. Because SSs are intended to be broadcast across a wide coverage area in a beamformed manner, the SSs represent a promising complement to existing beam management techniques. Accordingly, beam management may be achieved at least in part based on reporting one or more metrics of beamformed SSs through a channel feedback framework.