公开(公告)号：US10432378B2

公开(公告)日：2019-10-01

申请号：US15717713

申请日：2017-09-27

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Krishna Kiran Mukkavilli ,  Raghu Challa ,  Yang Yang ,  Alexei Yurievitch Gorokhov ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  Heechoon Lee

IPC: H04L5/00 ,  H04W48/08 ,  H04W52/02 ,  H04W76/28 ,  H04W88/02

Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes identifying a transmission timing of a control reference signal transmitted over a radio frequency spectrum band during an OFF duration of the UE with respect to the radio frequency spectrum band, in which the identified transmission timing is relative to a transition from the OFF duration to an ON duration of the UE with respect to the radio frequency spectrum band; receiving the control reference signal at the identified transmission timing; and performing a warm-up procedure, before the ON duration, based at least in part on the identified transmission timing of the control reference signal. A method for wireless communication at a wireless network includes indicating, to the UE, the transmission timing of the control reference signal; and transmitting the control reference signal at the indicated transmission timing. The OFF duration and the ON duration are coordinated with a wireless network.

公开(公告)号：US20190296956A1

公开(公告)日：2019-09-26

申请号：US16298927

申请日：2019-03-11

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Peter Pui Lok Ang ,  Heechoon Lee ,  Sumeeth Nagaraja ,  Sony Akkarakaran

IPC: H04L27/26 ,  H04W64/00 ,  H04W28/20 ,  H04L5/00 ,  H04L1/16 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may be configured to transition to communicating on a first bandwidth part from communicating on a second bandwidth part. In order to ensure that the UE is able to perform receiver processing for demodulating data received on the first bandwidth part, after transitioning to communicating on the first bandwidth part, the UE may be configured to perform receiver processing using reference signals received on the second bandwidth part. That is, for a configured period of time, before the UE is able to perform receiver processing for demodulating data received on the first bandwidth part using reference signals received on the first bandwidth part, the UE may perform receiver processing for demodulating data received on the first bandwidth part using reference signals received on the second bandwidth part.

公开(公告)号：US10425971B2

公开(公告)日：2019-09-24

申请号：US15600636

申请日：2017-05-19

Applicant: QUALCOMM Incorporated

Inventor： Hung Ly ,  Wanshi Chen ,  Tingfang Ji ,  Hao Xu ,  Haitong Sun ,  Heechoon Lee ,  Kambiz Azarian Yazdi

IPC: H04W74/08 ,  H04L5/00

Abstract: A wireless communications of a contention-based access procedure that reduces collision of reference signals (e.g., when multiple devices select a same reference signal) may support a relatively high user capacity. For a contention-based access procedure, a user equipment may select at least two reference signals and transmit those at least two reference signals in association with a payload to a base station. The payload may be demodulated using each of the at least two reference signals. Thus, if collision occurs with a first reference signal of the at least two reference signals, the payload may still be demodulated using a second reference signal of the at least two reference signals. A base station may demodulate the payload using either first reference signal or the second reference signal. The base station may transmit, to the wireless communications device, a response based on the demodulated payload.

公开(公告)号：US20190222404A1

公开(公告)日：2019-07-18

申请号：US16239412

申请日：2019-01-03

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Heechoon Lee ,  Jing Sun ,  Xiao Feng Wang

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0098 ,  H04L5/0041 ,  H04L5/0048 ,  H04L5/0096 ,  H04W72/0453

Abstract: Techniques are described herein for scheduling communication resources of a bandwidth part (BWP) after a BWP switching event when the frequency range of an active BWP is different than the frequency range of a target BWP. A user equipment (UE) may interpret the resource allocation field in scheduling downlink control information (DCI) that triggers a BWP switching event based on the active BWP. The UE and a base station may be configured to communicate using at least a portion of the resources of the active BWP in the first transmission opportunity after the BWP switching event. In subsequent transmitting opportunities where a scheduling DCI for the target BWP is received by the UE, the UE may interpret the resource allocation field of the new DCI as being based on the target BWP.

公开(公告)号：US20190222391A1

公开(公告)日：2019-07-18

申请号：US16216850

申请日：2018-12-11

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Wanshi Chen ,  Peter Gaal ,  Jing Sun ,  Joseph Binamira Soriaga

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/08 ,  H04W72/04

CPC classification number: H04L5/0053 ,  H04L1/0038 ,  H04L1/0068 ,  H04L5/0007 ,  H04W72/042 ,  H04W72/08

Abstract: Wireless communications systems and methods related to downlink (DL) control channel communications are provided. A wireless communication device identifies a search space set including a plurality of PDCCH candidate search spaces for a downlink control channel. The wireless communication device determines that a first resource associated with a first PDCCH candidate search space of the plurality of PDCCH candidate search spaces overlaps with a preconfigured resource. The wireless communication device monitors for a downlink control message over the downlink control channel by excluding monitoring in at least the first PDCCH candidate search space based on the determining

公开(公告)号：US20190215117A1

公开(公告)日：2019-07-11

申请号：US16225941

申请日：2018-12-19

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Peter Pui Lok Ang ,  Jing Sun ,  Tao Luo ,  Peter Gaal ,  Wanshi Chen

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L5/0078

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine that a triggering event associated with a user equipment (UE) has occurred. The UE may receive, based at least in part on an occurrence of a triggering event associated with the UE, a trigger signal that identifies resources to be used for transmission of an aperiodic tracking reference signal (TRS). The UE may receive the aperiodic TRS based at least in part on the trigger signal and the identified resources. The UE may perform at least one of a tracking function, or a synchronization function, or an alignment function, or a combination thereof, in response to the occurrence of the triggering event and based at least in part on the aperiodic TRS.

公开(公告)号：US10349265B2

公开(公告)日：2019-07-09

申请号：US16001527

申请日：2018-06-06

Applicant: QUALCOMM Incorporated

Inventor： Hung Ly ,  Heechoon Lee ,  Haitong Sun ,  Tingfang Ji ,  Wanshi Chen ,  Keiichi Kubota

IPC: H04W36/00 ,  H04W8/08 ,  H04L12/26 ,  H04W64/00 ,  H04W68/02 ,  H04W76/27 ,  H04W36/32

Abstract: Various aspects described herein relate to techniques for mobility mode selection in uplink-based and downlink-based mobility in wireless communications systems. In an aspect, a method for wireless communications may include determining that a user equipment (UE) is operating in a first mobility mode, determining whether the UE satisfies at least one condition associated with mobility of the UE for mobility mode selection, and selecting a second mobility mode based on a determination that the UE satisfies the at least one condition, wherein each of the first mobility mode and the second mobility mode is an uplink mobility mode or a downlink mobility mode. The techniques described herein may apply to different communications technologies, including the 5th Generation (5G) New Radio (NR) communications technology.

公开(公告)号：US10341946B2

公开(公告)日：2019-07-02

申请号：US15967073

申请日：2018-04-30

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Tao Luo ,  Bilal Sadiq ,  Hung Ly ,  Heechoon Lee ,  Haitong Sun

IPC: H04W4/00 ,  H04W48/16 ,  H04W56/00 ,  H04L12/58 ,  H04W4/12 ,  G06Q50/00 ,  H04W8/24 ,  H04M1/725

Abstract: In order to improve cell detection in NR, a user equipment apparatus performs a PSS search on a first frequency raster from a group of frequency rasters. When the UE detects a PSS on the first frequency raster corresponding to a PSS hypothesis, the UE searches for an SS on a second frequency raster based at least on part on the detected PSS hypothesis on the first frequency raster. The UE may search for a plurality of hypotheses of the SS corresponding to the detected PSS hypothesis on the first frequency raster and the second frequency raster. The second frequency raster may be selected from the group of frequency rasters based at least in part on the detected PSS hypothesis or the first frequency raster on which the PSS was detected.

公开(公告)号：US20190165915A1

公开(公告)日：2019-05-30

申请号：US16160581

申请日：2018-10-15

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Heechoon Lee ,  Tao Luo ,  Peter Gaal ,  Jing Sun

IPC: H04L5/00 ,  H04W76/27 ,  H04W76/11 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine updated system information for a user equipment (UE), wherein the UE is associated with an initial access bandwidth part (BWP) and a configured BWP; and transmit the updated system information to the UE using at least one of unicast signaling, multicast signaling, the configured BWP, or a particular BWP that is different from the configured BWP. Numerous other aspects are provided.

公开(公告)号：US20190158336A1

公开(公告)日：2019-05-23

申请号：US16197085

申请日：2018-11-20

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Hung Dinh Ly ,  Muhammad Nazmul ,  Heechoon Lee

IPC: H04L27/26 ,  H04W48/16 ,  H04W48/12 ,  H04J3/06

Abstract: Techniques and devices for signaling control and system information are provided. In one aspect, a base station determines a type of multiplexing and a periodicity for transmission of remaining minimum system information (RMSI). The type of multiplexing is for multiplexing the RMSI with a synchronization signal (SS) block. The base station generates an indicator that signals the type of multiplexing and the periodicity. In another aspect, a user equipment (UE) identifies the indicator and determines the type of multiplexing and the periodicity based on the indicator. The UE processes the transmission of RMSI based on the type of multiplexing and the periodicity. Other aspects and features are also claimed and described.