公开(公告)号：US20210321460A1

公开(公告)日：2021-10-14

申请号：US17211548

申请日：2021-03-24

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Peter GAAL ,  Jing SUN ,  Xiaoxia ZHANG ,  Juan MONTOJO ,  Jelena DAMNJANOVIC ,  Iyab Issam SAKHNINI ,  Junyi LI

IPC: H04W74/08 ,  H04W24/08 ,  H04L12/26 ,  H04W72/04 ,  H04L5/00

Abstract: An apparatus may be configured to determine that a first random access channel (RACH) procedure with a base station is unsuccessful. The apparatus may be further configured to transmit, after determining that the first RACH procedure is unsuccessful, a preamble message for a second RACH procedure with the base station. A second configuration for the second RACH procedure may be different from a first configuration for the first RACH procedure. Another apparatus may be configured to receive a preamble message from a UE for a second RACH procedure having a second configuration different from a first configuration for a first RACH procedure. The other apparatus may be further configured to determine that the first RACH procedure with the UE is unsuccessful.

公开(公告)号：US20210321344A1

公开(公告)日：2021-10-14

申请号：US17212781

申请日：2021-03-25

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Sony AKKARAKARAN ,  Kapil GULATI ,  Tao LUO ,  Junyi LI ,  Ling DING ,  Tianyang BAI ,  Qian ZHANG ,  Kiran VENUGOPAL

IPC: H04W56/00 ,  H04W64/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may determine whether to transmit a sidelink timing synchronization signal to a second UE based at least in part on a sidelink zone in which the first UE is located and a sidelink zone in which the second UE is located. The first UE may selectively transmit the sidelink timing synchronization signal to the second UE based at least in part on determining whether to transmit the sidelink timing synchronization signal to the second UE. Numerous other aspects are provided.

公开(公告)号：US20210321266A1

公开(公告)日：2021-10-14

申请号：US17225920

申请日：2021-04-08

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Tao LUO ,  Sony AKKARAKARAN ,  Yan ZHOU ,  Junyi LI

IPC: H04W16/28 ,  H04W24/10 ,  H04L5/00 ,  H04B7/06 ,  H04B7/08

Abstract: Aspects of the present disclosure provide inter-band carrier aggregation (CA) beam training. In certain aspects, inter-band CA beam training may include performing inter-band CA beam training for a first frequency band and inter-band CA beam training for a second frequency band between one or more base stations and a user equipment simultaneously.

公开(公告)号：US20210320879A1

公开(公告)日：2021-10-14

申请号：US16844823

申请日：2020-04-09

Applicant: QUALCOMM Incorporated

Inventor： Hua WANG ,  Piyush GUPTA ,  Junyi LI ,  Lik Hang Silas FONG

IPC: H04L12/823 ,  H04L12/851 ,  H04W72/04

Abstract: Apparatus, methods, and computer-readable media for facilitating usage of memory of helping UEs during sidelink retransmission are disclosed herein. An example method for wireless communication at a first user equipment (UE) includes receiving, from a wireless device, a first packet and a second packet for sidelink retransmission to at least one second UE, the second packet being received after the first packet. The example method also includes dropping the first packet or the second packet prior to retransmission based on at least one of a packet priority or an indication from the wireless device.

公开(公告)号：US20210320685A1

公开(公告)日：2021-10-14

申请号：US17301613

申请日：2021-04-08

Applicant: QUALCOMM INCORPORATED

Inventor： Kiran VENUGOPAL ,  Wooseok NAM ,  Sungwoo PARK ,  Tianyang BAI ,  Tao LUO ,  Junyi LI

IPC: H04B1/62 ,  H04W72/04 ,  H04W24/08 ,  H04L5/00

Abstract: Wireless communication devices, systems, and methods related to mechanisms for transmitting and receiving reference signals in a high-speed train (HST) single frequency network (SFN). A base station (BS) determines a first frequency pre-compensation value for a reference signal transmitted via a first transmission and reception point (TRP) and a second frequency pre-compensation value for a reference signal via a second TRP. The BS notifies a user equipment (UE) of the first and second pre-compensation values through at least one of the TRPs. The BS applies the first pre-compensation value to the reference signal via the first TRP and the second pre-compensation value to the reference signal via the second TRP. The UE adjusts its tracking loop for the reference signal based on the pre-compensation values, reducing estimation and/or search overhead at the UE.

公开(公告)号：US20210306959A1

公开(公告)日：2021-09-30

申请号：US17213648

申请日：2021-03-26

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Junyi LI ,  Ashwin SAMPATH

IPC: H04W52/24 ,  H04W52/52 ,  H04W74/08 ,  H04W52/14

Abstract: This disclosure generally relates to systems, devices, apparatuses, products, and methods for wireless communication. For example, a communication system may include a repeater that relays communications between communication devices. The repeater determines a downlink gain value to use for one or more downlink initial access messages received at the repeater. The repeater determines an uplink gain value to use for one or more downlink initial access messages received at the repeater. The uplink gain value is based on the downlink gain value and a noise level related to a channel between the communication device and the repeater. The repeater receives a downlink initial access message, and applies the downlink gain value to the downlink initial access message. The repeater receives an uplink initial access message, and applies the uplink gain value to the uplink initial access message.

公开(公告)号：US20210306054A1

公开(公告)日：2021-09-30

申请号：US17217878

申请日：2021-03-30

Applicant: QUALCOMM Incorporated

Inventor： Kapil GULATI ,  Hong CHENG ,  Sony AKKARAKARAN ,  Jung Ho RYU ,  Junyi LI ,  Tao LUO

IPC: H04B7/06 ,  H04W76/19 ,  H04W16/28 ,  H04L1/00 ,  H04W52/26

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) participating in a sidelink communications group increments a transmit counter for each packet transmitted by the first UE as part of group communications among the sidelink communications group, increments a receive counter for each packet received by the first UE from a second UE participating in the the sidelink communications group as part of group communications among the sidelink communications group; and transmits the transmit counter and the receive counter to a network node based on a configuration received from the network node.

公开(公告)号：US20210288763A1

公开(公告)日：2021-09-16

申请号：US17157575

申请日：2021-01-25

Applicant: QUALCOMM Incorporated

Inventor： Hua WANG ,  Piyush GUPTA ,  Junyi LI ,  Lik Hang Silas FONG

IPC: H04L1/18 ,  H04W24/08 ,  H04B17/336 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for a fallback retransmission for a sidelink. A method that may be performed by a user equipment (UE) includes monitoring a transmission from a node. The UE can determine that the transmission was not successfully decoded. The UE can send a feedback message to the node indicating that the transmission was not successfully decoded. The feedback message can also include an indication of whether the node or a base station (BS) retransmits the transmission. The node retransmits the transmission or indicates to the BS to retransmit based on the feedback message. The BS can configure the node, the UE, or both with one or more thresholds for determining whether the node or the BS retransmits the transmission.

公开(公告)号：US20210273698A1

公开(公告)日：2021-09-02

申请号：US17162784

申请日：2021-01-29

Applicant: QUALCOMM Incorporated

Inventor： Ling DING ,  Junyi LI ,  Sony AKKARAKARAN ,  Jung Ho RYU ,  Tao LUO

IPC: H04B7/06 ,  H04W76/28 ,  H04W16/28 ,  H04B7/0408

Abstract: Certain aspects provide a method for wireless communication by a first user-equipment (UE). The method generally includes applying a discontinuous reception (DRX) configuration for the first UE, monitoring for first signaling from a second UE indicating that the second UE has data to send to the first UE, the first signaling being transmitted using a plurality of transmit beams during a DRX cycle of the DRX configuration, selecting one or more transmit beams of the plurality of transmit beams based on the monitoring of the first signaling, and communicating in accordance with the selection.

公开(公告)号：US20210259042A1

公开(公告)日：2021-08-19

申请号：US17152274

申请日：2021-01-19

Applicant: QUALCOMM Incorporated

Inventor： Ling DING ,  Sony AKKARAKARAN ,  Jung Ho RYU ,  Junyi LI ,  Tao LUO

IPC: H04W76/28 ,  H04W72/02 ,  H04W24/08 ,  H04W80/02 ,  H04W72/04 ,  H04W72/12

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication. A user equipment (UE) may determine, based on a sidelink resource configuration from a base station, a physical sidelink control/shared channel (PSCCH/PSSCH) occasion to monitor for a sidelink transmission from a second UE. The UE may receive, during the PSCCH/PSSCH occasion, a signal indicative of a sidelink discontinuous reception (DRX) command. The UE may determine to stop monitoring the PSCCH for the PSCCH/PSSCH occasion in response to the sidelink DRX command.