公开(公告)号：US11711109B2

公开(公告)日：2023-07-25

申请号：US17324651

申请日：2021-05-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04W74/02 ,  H04B1/713 ,  H04W72/044 ,  H04B7/26 ,  H04L12/413 ,  H04L5/00 ,  H04L12/46 ,  H04J11/00

CPC classification number: H04B1/713 ,  H04B7/2643 ,  H04L5/0012 ,  H04L5/0037 ,  H04L12/413 ,  H04L12/4625 ,  H04W72/044 ,  H04J11/0026 ,  H04L5/001

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a discovery reference signal from a base station on an anchor channel. The UE may perform a first random or pseudorandom frequency hopping procedure to identify a plurality of downlink carriers for a first time period. The UE may perform a second random or pseudorandom frequency hopping procedure within the plurality of downlink carriers to select one of the plurality of downlink carriers as the uplink channel for a second time period. The UE may then transmit an uplink communication during the second time period on the selected uplink channel. In some examples, the uplink communication may be transmitted based at least in part on time division multiplexing (TDM) information.

公开(公告)号：US11706709B2

公开(公告)日：2023-07-18

申请号：US17360697

申请日：2021-06-28

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Junyi Li ,  Ozcan Ozturk ,  Chih-Hao Liu ,  Sony Akkarakaran

IPC: H04W52/02

CPC classification number: H04W52/0216

Abstract: Methods, systems, and devices for wireless communications are described. A hub user equipment (UE) in a star topology may broadcast to a set of peripheral UEs indicating slots when the hub UE will not be in a transmission mode. The hub UE may broadcast a slot format indication to the peripheral UEs to indicate operating modes in a set of slots. In a first group of slots, the hub UE may operate in a forward mode, transmitting sidelink communications to the peripheral UEs. In a second group of slots, the hub UE may operate in a reverse mode, receiving sidelink communications from the peripheral UEs. In slots when the hub UE operates in the reverse mode, if a peripheral UE does not have data or control information, the peripheral UE may enter a sleep mode in one or more slots of the second group to save power.

公开(公告)号：US11696284B2

公开(公告)日：2023-07-04

申请号：US16563730

申请日：2019-09-06

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Seyed Ali Akbar Fakoorian ,  Srinivas Yerramalli ,  Qingjiang Tian ,  Andrei Dragos Radulescu ,  Tamer Kadous

IPC: H04W72/00 ,  H04W72/20 ,  H04L5/00 ,  H04W24/10 ,  H04W28/02 ,  H04W72/541 ,  H04W72/542

CPC classification number: H04W72/20 ,  H04L5/0048 ,  H04L5/0055 ,  H04W24/10 ,  H04W28/0236 ,  H04W72/541 ,  H04W72/542

Abstract: Generally, the described techniques provide for a base station transmitting an indication of a set of one or more available channels to a user equipment (UE). The base station may transmit to the UE a first downlink burst using a first channel and a first frame period. In some cases, the base station may detect interference associated with the first downlink burst, for example, by performing a listen-before-talk (LBT) procedure or through an interference management resources (IMR) procedure in which the base station transmits reference signal signals to the UE that the UE may use to return a report on measured interference. If the base station detects interference, the base station may transmit to the UE an instruction to switch to a second channel and a second frame period, where the second channel may be selected from the set of one or more available channels.

公开(公告)号：US11683770B2

公开(公告)日：2023-06-20

申请号：US17337346

申请日：2021-06-02

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Chih-Hao Liu ,  Tamer Kadous

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W56/00 ,  H04W72/04 ,  H04W72/27 ,  H04W72/0453

CPC classification number: H04W56/0015 ,  H04J11/0069 ,  H04J11/0073 ,  H04J11/0076 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2614 ,  H04W16/14 ,  H04J2011/0096 ,  H04W72/0453 ,  H04W72/27

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a first synchronization sequence and generate a second synchronization sequence based at least in part on the first synchronization sequence. The base station may map the first synchronization sequence to a first resource block of a synchronization channel associated with a first frequency sub-band of a shared radio frequency spectrum band and the second synchronization sequence to a second resource block associated with a second frequency sub-band of the synchronization channel. The base station may then transmit the first synchronization sequence and the second synchronization sequence concurrently over the synchronization channel using the first resource block and the second resource block according to the mapping. In some cases, the second synchronization sequence may be generated by applying a first phase shift to the first synchronization sequence.

公开(公告)号：US11678371B2

公开(公告)日：2023-06-13

申请号：US17304427

申请日：2021-06-21

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Piyush Gupta ,  Xiaojie Wang

IPC: H04W74/08 ,  H04W52/04 ,  H04W72/56

CPC classification number: H04W74/0808 ,  H04W52/04 ,  H04W72/56

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a configuration indicating a resource pool and a channel occupancy control parameter for configured grant sidelink communications, select one or more resources from the resource pool based at least in part on the channel occupancy control parameter, and transmit a configured grant sidelink communication using the one or more resources from the resource pool. Numerous other aspects are provided.

公开(公告)号：US11664860B2

公开(公告)日：2023-05-30

申请号：US17448474

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/0417

CPC classification number: H04B7/0456 ,  H04B7/0417

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support mechanisms for sidelink beamforming alignment over a set of resources based on a deterministic sequence in a wireless communication system. In aspects, an sidelink initiator user equipment (UE) may initiate a beamforming alignment procedure with a responder UE over a the sidelink. The initiator UE may define a set of subchannels specified by a deterministic sequence. The set of subchannels may be subchannels over which the initiator UE may perform reception beam sweeping. The deterministic sequence may be anchored to a direct frame number (DFN) of the sidelink frame without initial sensing, and may be determined via a sequence index, as a function of sidelink UE identification ID(s), or a combination thereof. In this manner, the number of bits for indicating the deterministic sequence to the responder UE may be reasonable, manageable, and/or moderate.

公开(公告)号：US20230135581A1

公开(公告)日：2023-05-04

申请号：US17452979

申请日：2021-10-29

Applicant: QUALCOMM INCORPORATED

Inventor： Chih-Hao Liu ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang

IPC: H04L5/00 ,  H04W72/04

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a first sidelink user equipment (UE) may include transmitting, to a second sidelink UE, at least one channel state information reference signal (CSI-RS) in a slot and transmitting, to the second sidelink UE, at least one sidelink synchronization signal block (S-SSB) in the slot, wherein an occupied channel bandwidth (OCB) associated with the slot satisfies a threshold based at least on the transmitting the at least one CSI-RS and the transmitting the at least one S-SSB.

公开(公告)号：US20230117182A1

公开(公告)日：2023-04-20

申请号：US17451076

申请日：2021-10-15

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Jing Sun

IPC: H04W28/26 ,  H04L5/00

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support a super slot configuration for new radio (NR) sidelink over millimeter wave (mmW) operating frequencies. In a first aspect, a method of wireless communication by a user equipment (UE) includes obtaining a sidelink resource pool configuration including configuration of one or more super slots, wherein each super slot includes a plurality of slots contiguous in a time domain The UE may select one or more sidelink resource slots for sidelink transmissions in a sidelink resource pool and transmit an enhanced sidelink control information (eSCI) message in a first slot of a first super slot, wherein the eSCI message indicates a reservation of slots corresponding to the one or more sidelink resource slots. The UE may then send the sidelink transmissions on at least one slot of the reserved slots. Other aspects and features are also claimed and described.

公开(公告)号：US20230078193A1

公开(公告)日：2023-03-16

申请号：US17477299

申请日：2021-09-16

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Chih-Hao Liu ,  Jing Sun ,  Jung Ho Ryu

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive sidelink control information from a second wireless device. The sidelink control information may include an allocation of a first set of resources for a sidelink transmission from the second wireless device to the first wireless device, along with an indication that schedules a second set of resources for additional sidelink transmissions between the first wireless device and the second wireless device that are scheduled to occur after the sidelink transmission from the second wireless device to the first wireless device. Based on the received indication, the first wireless device may communicate with the second wireless device via a sidelink shared channel using the first set of resources and the second set of resources.

公开(公告)号：US20230057681A1

公开(公告)日：2023-02-23

申请号：US17408148

申请日：2021-08-20

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu ,  Tao Luo

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/14 ,  H04L5/00 ,  H04L1/00

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support cross-slot scheduling of sidelink transmissions in a wireless communication system. A transmitting user equipment (UE) in communication with a receiving UE over a sidelink transmits cross-slot schedule information to the receiving UE at a time prior to a first slot over which a physical sidelink shared channel (PSSCH) transmission is to be transmitted to the receiving UE. The cross-slot schedule information includes information that is sufficient to decode the PSSCH transmission received by the receiving UE at the first slot, without requiring the receiving UE to decode a physical sidelink control channel (PSCCH) transmission including a sidelink control information (SCI) message received during the first slot. In aspects, the PSSCH transmission may be decoded in parallel with the PSCCH transmission received in the first slot.