公开(公告)号：US11184923B2

公开(公告)日：2021-11-23

申请号：US16406563

申请日：2019-05-08

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Wanshi Chen ,  Jing Sun ,  Peter Gaal

IPC: H04W74/08 ,  H04W76/28 ,  H04W16/14 ,  H04W28/02 ,  H04W72/02

Abstract: Various aspects described herein relate to reducing transmission latency in unlicensed spectrum. These latency reduction techniques include enabling ultra low latency (ULL) traffic to gain fast channel access. These latency reduction techniques further include updating a size of a contention window for channel access. In addition, these latency reduction techniques include enhancing CPDCCH-based signaling to accommodate the ULL frame structure. Further, these latency reduction techniques include providing robust operation against bursty interference for ULL transmissions. Moreover, these techniques include managing DRX for ULL. Additionally, these latency reduction techniques include joint scheduling of different TTI durations. These latency reduction techniques further include updating SRS transmission opportunities. In addition, these latency reduction techniques include reducing latency associated with PRACH transmissions. Further, these latency reduction techniques include reducing ULL transmission delays by either ignoring or cancelling scheduled uplink (e.g., LTE) transmissions.

公开(公告)号：US20210360634A1

公开(公告)日：2021-11-18

申请号：US17314591

申请日：2021-05-07

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Jing Lei ,  Wanshi Chen ,  Hwan Joon Kwon

IPC: H04W72/04 ,  H04W8/24 ,  H04W72/10 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine whether to perform a simplified uplink control information (UCI) multiplexing procedure or select an overlapping uplink channel having the highest priority and drop the remaining overlapping uplink channels. The UE may determine that a first symbol period of the physical uplink scheduled channel (PUSCH) is aligned with a first symbol period of the physical uplink control channel (PUCCH) and the UE may multiplex UCI with an uplink data transmission. The UE may transmit the multiplexed UCI and uplink data on the PUSCH and drop the PUCCH. The UE may perform UCI multiplexing for overlapping PUCCH and PUSCH, located on the same component carrier (CC). The UE may refrain from performing UCI multiplexing if the PUSCH and the PUCCH are located on different CCs, and may simultaneously transmit UCI and uplink data over the different CCs.

公开(公告)号：US11172513B2

公开(公告)日：2021-11-09

申请号：US16680426

申请日：2019-11-11

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Makesh Pravin John Wilson ,  Tao Luo ,  Wanshi Chen

IPC: H04W4/00 ,  H04W74/08 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently identifying spatial parameters for receiving control information in an initial coreset. In one example, a user equipment (UE) may receive a TCI state indicating reference signals quasi co-located with a control information transmission in a coreset, and the UE may also identify a quasi co-location (QCL) assumption in a random-access procedure indicating that a synchronization signal block (SSB) is quasi co-located with the control information transmission in the coreset. In this example, the UE may identify spatial parameters for monitoring the coreset for the control information transmission in accordance with the TCI state or the QCL assumption based on the timing of the indicated TCI state and the QCL assumption.

公开(公告)号：US11172481B2

公开(公告)日：2021-11-09

申请号：US16271254

申请日：2019-02-08

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Alexandros Manolakos ,  Tao Luo ,  Wanshi Chen ,  Peter Gaal

IPC: H04W72/04 ,  H04L27/26

Abstract: Aspects of the present disclosure describe receiving a first communication according to a first timeline, wherein the first timeline is based on a first cyclic prefix (CP) type, and receiving a second communication according to a second timeline, where the second timeline is based on a second CP type, and where the second communication is multiplexed with the first communication in the same slot.

公开(公告)号：US11172444B2

公开(公告)日：2021-11-09

申请号：US15711297

申请日：2017-09-21

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Wanshi Chen ,  Peter Gaal ,  Tingfang Ji

IPC: H04W52/02 ,  H04W52/34 ,  H04W76/27 ,  H04W72/04 ,  H04W72/12 ,  H04W52/14 ,  H04W24/02

Abstract: Aspects of the present disclosure relate to wireless communications and, more particularly, to power control and management for enhanced mobile broadband (eMBB)/ultra-reliable low latency (URLLC) multiplexing. A method for wireless communications that may be performed by a user equipment (UE) is provided. The method generally includes receiving, from a base station (BS), scheduling information scheduling the first UE for communication, with the BS, according to a first communications service type, receiving signaling indicating a second UE is scheduled for communication with the BS according to a second communications service type, and communicating with the BS according to the first communications service type at a reduced transmission power relative to a transmission power used for communicating according to the second communications service type.

公开(公告)号：US20210345388A1

公开(公告)日：2021-11-04

申请号：US17241849

申请日：2021-04-27

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Jing Lei ,  Huilin Xu ,  Hwan Joon Kwon ,  Wanshi Chen

IPC: H04W72/12 ,  H04L1/18 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may receive a downlink control message from a base station scheduling multiple downlink messages and indicating a first offset for communicating a first feedback message of multiple feedback messages including feedback information for the multiple downlink messages. The UE may additionally receive, from the base station, a second offset for communicating the remaining feedback messages of the multiple feedback messages after communicating the first feedback message. The UE may transmit the first feedback message a quantity of resources equal to the first offset after receiving a first downlink message. The UE may then transmit the remaining feedback messages a quantity of resources equal to the second offset after transmitting the first feedback message. Each of the feedback messages may include feedback information for one downlink message.

公开(公告)号：US20210345071A1

公开(公告)日：2021-11-04

申请号：US17244055

申请日：2021-04-29

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Alberto Rico Alvarino ,  Le Liu ,  Peter Gaal ,  Wanshi Chen ,  Ayan Sengupta ,  Prasad Reddy Kadiri ,  Tao Luo ,  Mostafa Khoshnevisan ,  Juan Montojo ,  Umesh Phuyal ,  Wooseok Nam

IPC: H04W4/06 ,  H04W76/11 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may communicate in a wireless communications system. The UE may receive first control signaling indicating a first radio network temporary identifier (RNTI) and a first feedback process identifier, where the first RNTI indicates scheduling of a unicast downlink transmission. The UE may also receive second control signaling indicating a second RNTI and a second feedback process identifier, where the second RNTI indicates scheduling of a multicast downlink transmission. The UE may manage a hybrid automatic repeat request (HARM) process at the UE associated with the unicast downlink transmission and the multicast downlink transmission based on the first RNTI, the first feedback process identifier, the second RNTI, and the second feedback process identifier. The UE may also simultaneously process multicast downlink transmission and broadcast signaling.

公开(公告)号：US20210337499A1

公开(公告)日：2021-10-28

申请号：US17369663

申请日：2021-07-07

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Muhammad Nazmul Islam ,  Jianghong Luo ,  Wanshi Chen ,  Tao Luo ,  Junyi Li

IPC: H04W56/00 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described that provide for multiple timing advance offsets that may be used in communications between wireless devices on a wireless communications system. A first timing advance offset may be a fixed offset that has a predetermined value or is selected from a set of available predetermined values, and a second timing advance offset may be adjustable by a wireless device. The second timing advance offset may be used in cases where relatively large distances between wireless devices are present in a system, where certain fixed timing advances are used in addition to or irrespective of a receiving devices propagation delay, where one or more parent nodes have an associated timing reference, or combinations thereof.

公开(公告)号：US20210337492A1

公开(公告)日：2021-10-28

申请号：US17370377

申请日：2021-07-08

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Le Liu ,  Gowrisankar Somichetty ,  Xiao Feng Wang ,  Wanshi Chen

IPC: H04W56/00 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: A resynchronization signal (RSS) may extend across multiple physical resource blocks (PRBs) or subframes, which may cause the RRS to be scheduled to overlap with other downlink transmissions. Methods, systems, and devices for wireless communications are described for management of RSS and one or more other transmission types that may have overlapping wireless resources with the RSS. If one or more other downlink transmissions are scheduled for resources that overlap with resources scheduled for an RSS transmission, the UE may receive the RSS transmission or the one or more other downlink transmissions, or a combination thereof, based on a prioritization of the transmission types of the one or more other downlink transmissions relative to RSS. The RSS transmission or the one or more other transmissions may be delayed, dropped, punctured, or rate-matched when the RSS transmission and the one or more other downlink transmissions conflict.

公开(公告)号：US20210329678A1

公开(公告)日：2021-10-21

申请号：US17231951

申请日：2021-04-15

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Wanshi Chen ,  Gabi Sarkis ,  Shuanshuan Wu ,  Kapil Gulati ,  Sudhir Kumar Baghel

IPC: H04W72/12 ,  H04W72/10 ,  H04W76/14 ,  H04W72/08

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive an indication of one or more parameters for communications over a sidelink channel during a first time period, where the one or more parameters may include a time threshold for a second resource pool. The wireless device may transmit data over a first resource pool of the sidelink channel during a first portion of the first time period based on the one or more parameters, the first resource pool including resources for communications between the first wireless device and a second wireless device. The wireless device may monitor the second resource pool during a second portion of the first time period for the time threshold, the second resource pool including resources for communications between the first wireless device and a third wireless device.