公开(公告)号：US20200221384A1

公开(公告)日：2020-07-09

申请号：US16726149

申请日：2019-12-23

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok ANG ,  Tingfang JI ,  Wanshi CHEN ,  Tao LUO ,  Alexei Yurievitch GOROKHOV ,  Aamod KHANDEKAR ,  Jafar MOHSENI ,  Wooseok NAM ,  Alexandros MANOLAKOS ,  Heechoon LEE ,  Huilin XU

IPC: H04W52/02 ,  H04W76/28 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04W72/14

Abstract: Apparatus, methods, and computer-readable media for providing improved power efficiency during DRX wake-up are disclosed. An example method of wireless communication at a UE includes receiving a WUS from a base station while performing a DRX cycle, the WUS indicating data for transmission to the UE. The example method also includes at least one receiving a downlink reference signal or transmitting an uplink reference signal based on the WUS and prior to reception of the data, the uplink reference signal transmitted or the downlink reference signal received during an on-duration of the DRX cycle and in response to receiving the WUS. The example method also includes sending a CSI report to the base station based on the WUS and prior to the receiving of the data. The example method also includes receiving the data following the respective receiving or transmitting of the downlink reference signal or uplink reference signal.

公开(公告)号：US20200052950A1

公开(公告)日：2020-02-13

申请号：US16526804

申请日：2019-07-30

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Heechoon LEE ,  Makesh Pravin JOHN WILSON ,  Wanshi CHEN ,  Tao LUO

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a phase tracking reference signal (PTRS) port is to be shared among a plurality of physical downlink shared channels (PDSCHs) transmitted by a plurality of transmit receive points (TRPs); receive PTRS pilot signals on one or more PDSCHs of the plurality of PDSCHs; and use the PTRS pilot signals for phase tracking estimation for the plurality of PDSCHs based at least in part on the determination that the PTRS port is to be shared among the plurality of PDSCHs. Numerous other aspects are provided.

公开(公告)号：US20190230656A1

公开(公告)日：2019-07-25

申请号：US16255779

申请日：2019-01-23

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira SORIAGA ,  Jing SUN ,  Wanshi CHEN ,  Heechoon LEE ,  Peter GAAL ,  Alexandros MANOLAKOS ,  Yang YANG

IPC: H04W72/04 ,  H04L1/18

Abstract: Certain aspects of the present disclosure provide techniques for slot aggregation in new radio (NR) systems. A method of wireless communication by a user equipment (UE) includes receiving radio resource control (RRC) signaling providing a semi-static configuration for transmission and/or reception of a repeated transport block (TB) and/or a different TB in each of a plurality of aggregated slots. The UE transmits or receives the TBs in the plurality of aggregated slots based on the semi-static configuration. Another method is provided in which the UE transmits and/or receives a demodulation reference signal (DMRS) in each of a plurality of aggregated slots, each DMRS associated with a repeated TB or a different TB in the slot. The UE determines, based on received signaling, whether the DMRS use a same precoder or a different precoder and modulates and/or demodulates the TBs in the plurality of aggregated slots based on the determination.

公开(公告)号：US20190165982A1

公开(公告)日：2019-05-30

申请号：US16199958

申请日：2018-11-26

Applicant: QUALCOMM Incorporated

Inventor： Peter GAAL ,  Valentin GHEORGHIU ,  Timo Ville VINTOLA ,  Hung Dinh LY ,  Yang YANG ,  Jing JIANG ,  Heechoon LEE

IPC: H04L27/26 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive carrier information identifying at least one of: an initial absolute frequency for a carrier, a tone boundary offset value for the carrier, a number of resource blocks included in the carrier, or a frequency offset from a reference frequency; and determine a resource allocation of the carrier based at least in part on the carrier information and a subcarrier spacing of the user equipment. Numerous other aspects are provided.

公开(公告)号：US20190165902A1

公开(公告)日：2019-05-30

申请号：US16201709

申请日：2018-11-27

Applicant: QUALCOMM Incorporated

Inventor： Chih-Ping LI ,  Jing JIANG ,  Jing SUN ,  Heechoon LEE ,  Gabi SARKIS

IPC: H04L5/00

Abstract: Aspects of the present disclosure describe an indication channel for wireless communications that indicates whether an ultra-reliable low-latency communication (URLLC) transmission is present in an enhanced mobile broad band (eMBB) slot. A user equipment (UE) may receive an indication channel identifying one or more resources defined by time domain parts and frequency domain parts that have been punctured by an Ultra-Reliable Low latency Communication (URLLC) transmission. The number of frequency domain parts may be greater than or equal to two. The UE may determine a number of resource block groups (RBGs) in an active band width part (BWP) of the UE. The UE may map the RBGs in the BWP among each of a number of sub-bands equal to the number of frequency domain parts based on a pre-defined rule.

公开(公告)号：US20190082422A1

公开(公告)日：2019-03-14

申请号：US16110343

申请日：2018-08-23

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Heechoon LEE ,  Wanshi CHEN

IPC: H04W72/02 ,  H04W72/04

Abstract: In order to improve the selection of search space candidates for a downlink control channel, an apparatus determines a set of decoding candidates of a lower aggregation level for a downlink control channel based on a random selection from a plurality of potential decoding candidates, wherein the plurality of potential decoding candidates are defined from a second set of decoding candidates of a higher aggregation level. The apparatus then attempts to decode the downlink control channel based on determined sets of decoding candidates of different aggregation levels. The downlink control channel may comprise a PDCCH.

公开(公告)号：US20190059054A1

公开(公告)日：2019-02-21

申请号：US16104066

申请日：2018-08-16

Applicant: QUALCOMM Incorporated

Inventor： Heechoon LEE ,  Peter Pui Lok ANG ,  Tao LUO ,  Peter GAAL ,  Wanshi CHEN ,  Juan MONTOJO ,  Tingfang JI

IPC: H04W52/02 ,  H04W72/04 ,  H04L5/00

Abstract: Aspects of the disclosure relate to wireless communications utilizing discontinuous reception (DRX). Disclosed methods and apparatus include providing a grant indicator in a transmission from a base station to a user equipment (UE), where indicator notifies the UE of a grant of data during a subsequent discontinuous reception (DRX) cycle in the at least one UE. Additionally, a tracking reference signal (TRS), which may be aperiodic (A-TRS), is transmitted prior to an on-duration time of the DRX cycle, where the TRS is usable by the UE for updating a tracking loop and also can be referenced by the indicator. In this manner, the combination of the grant indicator and the TRS affords a UE sufficient time for updating a UE tracking loop before the DRX cycle. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20190007163A1

公开(公告)日：2019-01-03

申请号：US16022136

申请日：2018-06-28

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Yang YANG ,  Heechoon LEE

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

Abstract: A method and apparatus for determining rate matching behavior for a plurality of control resource sets (CORESETs) is provided. A base station (BS) bundles a plurality of CORESETs into a global resource set. The BS configures the global resource set for a User Equipment (UE). The BS determines resources assigned to a downlink data channel overlap at least a portion of the global resource set and determines whether data on the downlink data channel is to be rate matched around the global resource set or is to use resources in the global resource set. The BS transmits the data on the downlink data channel based on the determination of the rate matching.

公开(公告)号：US20180376463A1

公开(公告)日：2018-12-27

申请号：US16014988

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Piyush GUPTA ,  Wanshi CHEN ,  Heechoon LEE

IPC: H04W72/04 ,  H04W72/14 ,  H04L1/00 ,  H04L5/00

Abstract: Aspects of the disclosure relate to communication systems, apparatus and methods which enable or support transmitting/receiving downlink control information (DCI) carrying a downlink grant or an uplink grant. A method includes detecting a reference length based on an effective length of a downlink (DL) grant DCI and an effective length of an uplink (UL) grant DCI and calculating a length difference based on the effective DL grant DCI length and the effective UL grant DCI length. A length of a padding field in the DL grant DCI and/or the UL grant DCI is set equal to the calculated length difference such that the lengths of the DL grant DCI and UL grant DCI are both equal to the reference length. Padding bits are inserted in the padding field of the DL grant DCI and/or the UL grant DCI. Thereafter, the DL grant DCI and/or the UL grant DCI is encoded and transmitted to a scheduled entity.

公开(公告)号：US20180375625A1

公开(公告)日：2018-12-27

申请号：US16014940

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Jing SUN ,  Heechoon LEE ,  Makesh Pravin JOHN WILSON

IPC: H04L5/00 ,  H04B7/06

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a device may determine a shared demodulation reference signal (DMRS) configuration for a plurality of resource blocks of a channel, wherein a frequency domain associated with the plurality of resource blocks overlaps for a control resource of the channel and a data resource of the channel, and wherein the plurality of resource blocks are associated with a shared precoding scheme. The device may transmit a DMRS based at least in part on determining the shared DMRS configuration to enable a receiver to receive the plurality of resource blocks of the channel. Numerous other aspects are provided.