公开(公告)号：US20210105732A1

公开(公告)日：2021-04-08

申请号：US17026538

申请日：2020-09-21

Applicant: QUALCOMM Incorporated

Inventor： Kazuki TAKEDA ,  Hung Dinh LY ,  Wanshi CHEN ,  Peter GAAL

IPC: H04W56/00 ,  H04L5/00 ,  H04W74/08

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encored on computer storage media, for fifth generation (5G)-new radio (NR) physical layer (PHY) timing synchronization. In one aspect, a user equipment (UE) computing device may determine a new timing advance (TA) between downlink frames and uplink frames (NTA_new) for a base station (BS) and determine whether the NTA_new may be within a timing advance acceptable range. In another aspect, a BS may determine a timing advance command (TA) for a timing advance group (TAG) for the BS, and send the TA to the UE computing device. In determining the timing advance command, the TA may be configured by the BS to cause the UE computing device to determine that a new timing advance between downlink frames and uplink frames (NTA_new) for the BS using the TA is within a timing advance acceptable range.

公开(公告)号：US20210105120A1

公开(公告)日：2021-04-08

申请号：US17062265

申请日：2020-10-02

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Peter GAAL ,  Tao LUO ,  Jing SUN ,  Tae Min KIM ,  Arumugam CHENDAMARAI KANNAN

IPC: H04L5/00 ,  H04W72/04

Abstract: A phase tracking reference signal (PT-RS) may be transmitted to enable a receiver to correct phase noise in wireless communication. A UE scheduled for one PDSCH with DMRS ports in two or more DMRS CDM groups that are associated with two TCI states may be configured for PT-RS using two PT-RS ports. Therefore, rather than limiting PT-RS to a single port, the PT-RS may be transmitted to the UE using two PT-RS ports. The apparatus transmits a capability indication for more than one PT-RS port for receiving a downlink shared channel based on a first TCI and a second TCI. The apparatus receives a configuration for a maximum number of downlink PT-RS ports from a base station.

公开(公告)号：US20210105085A1

公开(公告)日：2021-04-08

申请号：US17122909

申请日：2020-12-15

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Wanshi CHEN ,  Tingfang JI ,  Peter GAAL

IPC: H04L1/00 ,  H04L1/18

Abstract: Aspects of the present disclosure provide techniques for enhanced transmission time interval (TTI) bundling design for machine type communications (MTC). A method for wireless communications by a wireless device is provided. The method generally includes determining a mapping of one or more uplink or downlink channels to one or more fixed bundling sizes, wherein each of the one or more fixed bundling sizes indicates a number of transmission time intervals (TTIs) over which a channel should be transmitted and processing transmission of the one or more uplink or downlink channels based on the mapping.

公开(公告)号：US20210099906A1

公开(公告)日：2021-04-01

申请号：US17098119

申请日：2020-11-13

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Tao LUO ,  Peter GAAL ,  Heechoon LEE ,  Peter Pui Lok ANG ,  Jing SUN

IPC: H04W28/02 ,  H04W74/08 ,  H04W72/04 ,  H04W74/00 ,  H04W76/11 ,  H04W80/08 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to random access channel (RACH) procedures in deployments where a RACH transmission may be sent on different UL carriers. An exemplary method performed by a base station includes receiving a random access (RA) preamble on a first component carrier (CC) of a plurality of CCs including at least one uplink (UL) CC and at least one supplemental uplink (SUL) CC and transmitting a response to the RA preamble, wherein the response indicates the first CC.

公开(公告)号：US20210068169A1

公开(公告)日：2021-03-04

申请号：US17003835

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng WANG ,  Iyab Issam SAKHNINI ,  Dan ZHANG ,  Peter GAAL ,  Jun MA ,  Huilin XU

IPC: H04W74/08 ,  H04W72/04 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for wireless communication. A method that may be performed by a base station (BS), the method including determining a plurality of root sets, wherein each root set of the plurality of root sets comprise at least a first root and a second root. In some examples, the method includes transmitting signaling that indicates the plurality of root sets.

公开(公告)号：US20210067213A1

公开(公告)日：2021-03-04

申请号：US17097071

申请日：2020-11-13

Applicant: QUALCOMM Incorporated

Inventor： Hao XU ,  Peter GAAL ,  Wanshi CHEN ,  Seyed Ali Akbar FAKOORIAN

IPC: H04B7/0456 ,  H04W4/70 ,  H04L1/02

Abstract: Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to increased diversity for devices with limited communications resources. An example method generally includes transmitting data as a bundled transmission to a device with limited communications resources, the bundled transmission comprising multiple bursts wherein each burst spans a plurality of transmission time intervals (TTIs) and the same data is transmitted in each burst, and taking action to increase diversity (e.g., at least one of spatial diversity, time diversity, frequency diversity, etc.) for the bundled transmission.

公开(公告)号：US20210051665A1

公开(公告)日：2021-02-18

申请号：US16947690

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar FAKOORIAN ,  Peter GAAL ,  Wanshi CHEN ,  Seyedkianoush HOSSEINI ,  Wei YANG ,  Xiaoxia ZHANG

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/30 ,  H04L1/18 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive activation or reactivation downlink control information (DCI) for a semi-persistent scheduling (SPS) configuration, wherein the activation or reactivation DCI includes a downlink association index (DAI) that is incremented by: a value of one to represent an initial SPS communication associated with the SPS configuration, or a value equal to a number of SPS occasions that are multiplexed in a same physical uplink control channel (PUCCH) communication. The UE may transmit acknowledgement or negative acknowledgement (ACK/NACK) feedback in the PUCCH communication based at least in part on the DAI. Numerous other aspects are provided.

公开(公告)号：US20210050974A1

公开(公告)日：2021-02-18

申请号：US16991959

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Guttorm Ringstad OPSHAUG ,  Peter GAAL

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

Abstract: Disclosed are techniques related to wireless communication system in which a network node (e.g., a base station, gNB, etc.) may be allowed to puncture a reference signal (RS) to deliver high priority data (e.g., URLLC data) to a user equipment (UE) that is not currently being served by the network node. The RS may comprise a puncturable subset and an unpuncturable subset. The puncturable subset may comprise resources of the RS that are allowed to be punctured, and the unpuncturable subset may comprise resources of the RS that are prohibited from being punctured. The network node may transmit the RS such that unpuncturable subset indicates whether or not the puncturable subset of the RS has or has not been punctured. In this way, the network node can quickly inform whether or not the RS has been punctured to carry high priority data.

公开(公告)号：US20210044384A1

公开(公告)日：2021-02-11

申请号：US16985883

申请日：2020-08-05

Applicant: QUALCOMM Incorporated

Inventor： Ayan SENGUPTA ,  Alberto RICO ALVARINO ,  Qiang SHEN ,  Chu-Hsiang HUANG ,  Cunzhen LIU ,  Yang SUN ,  Arash MIRBAGHERI ,  Gabi SARKIS ,  Peter GAAL

IPC: H04L1/00 ,  H04L1/06

Abstract: A base station maps code blocks of a transport block of a transport block size (TBS) for a channel using tone-level interleaving or resource element (RE)-level interleaving. Then, the base station can transmit the code blocks of the transport block of the TBS for the channel. A UE may receive the channel from the base station and de-interleave the received tones of the channel in a frequency domain to obtain the code blocks of the transport block having the TBS for the channel.

公开(公告)号：US20210028909A1

公开(公告)日：2021-01-28

申请号：US16928878

申请日：2020-07-14

Applicant: QUALCOMM Incorporated

Inventor： Peter GAAL ,  Yi HUANG ,  Tingfang JI ,  Wanshi CHEN ,  Joseph Binamira SORIAGA

IPC: H04L5/00 ,  H04L27/26 ,  H04L5/22

Abstract: Techniques and apparatus for transmitting control information to maintain hybrid automatic repeat request (HARQ) processes for multiple carriers in different frequency ranges, such as frequency range 1 (FR1) and frequency range 2 (FR2), in carrier aggregation scenarios are described. A first numerology of a first component carrier (CC) in FR1 and a second numerology of a second CC in FR2 are determined. A HARQ configuration that includes an indication of a set of physical uplink control channel (PUCCH) resources is determined. A number of symbols of the set of PUCCH resources is based on the first numerology and the second numerology. The HARQ configuration is transmitted to a user equipment (UE). HARQ feedback is transmitted on the first CC for data received on the second CC, using the set of PUCCH resources of the HARQ configuration.