公开(公告)号：US20220393845A1

公开(公告)日：2022-12-08

申请号：US17774568

申请日：2020-11-17

Applicant: Qualcomm Incorporated

Inventor： Ananta Narayanan THYAGARAJAN ,  Jing SUN ,  Kapil BHATTAD ,  Xiaoxia ZHANG

IPC: H04L5/00 ,  H04W16/14 ,  H04W72/04 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described where a system bandwidth within a shared radio frequency spectrum band may be divided into multiple sub-bands. A base station may use a fallback downlink control information format to provide a resource grant to a user equipment, where the fallback downlink control information has a predetermined number of bits. To provide an indication of one or more of the sub-bands that are to be used for uplink communications when using fallback downlink control information, an explicit or implicit indication may be provided. Such sub-band indication may allow for the user equipment to use a particular sub-band that is available for transmissions in a shared radio frequency spectrum band. Indications of one or more sub-bands may be provided explicitly by a sub-band indication field in a fallback downlink control information, or implicitly by one or more downlink transmissions of a base station.

公开(公告)号：US20220386318A1

公开(公告)日：2022-12-01

申请号：US17303344

申请日：2021-05-27

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jing SUN ,  Yisheng XUE ,  Xiaoxia ZHANG ,  Shuanshuan WU

IPC: H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, on an access link from a base station, a first downlink control information (DCI) that schedules a first communication on a physical sidelink shared channel (PSSCH) and a second DCI that schedules a second communication on the PSSCH. The first communication and the second communication may be scheduled according to a rule for overlapping or ordering communications on the PSSCH that are associated with one or more hybrid automatic repeat request identifiers. The UE may transmit the first communication and the second communication as scheduled. Numerous other aspects are described.

公开(公告)号：US20220377768A1

公开(公告)日：2022-11-24

申请号：US17805712

申请日：2022-06-07

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Jing SUN ,  Xiaoxia ZHANG ,  Ananta Narayanan THYAGARAJAN

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L5/10 ,  H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication in a shared spectrum. In some aspects, a user equipment may receive an indication of a set of starting offsets for an uplink communication, wherein the set of starting offsets includes at least one negative starting offset relative to a start of a slot or a mini-slot in which the uplink communication is configured to start; select a starting offset from the set of starting offsets; and transmit the uplink communication, wherein the uplink communication starts at a time indicated by the selected starting offset. Numerous other aspects are provided.

公开(公告)号：US20220377754A1

公开(公告)日：2022-11-24

申请号：US17740063

申请日：2022-05-09

Applicant: QUALCOMM Incorporated

Inventor： Giovanni CHISCI ,  Jing SUN ,  Arumugam CHENDAMARAI KANNAN ,  Vinay CHANDE ,  Xiaoxia ZHANG

IPC: H04W72/12 ,  H04W74/02

Abstract: Aspects relate to the amount of shared bandwidth to be used for channel occupancy time (COT) sharing. An initiator device may use a clear channel assessment procedure to gain access to wireless communication resources for a COT that will be shared between the initiator device and a responder device. In some examples, the responder device may determine the shared bandwidth based on information that is implicit in a transmission from the initiator device. For example, the responder device may determine the shared bandwidth based at least in part on a bandwidth of a transmission from the initiator device.

公开(公告)号：US20220377668A1

公开(公告)日：2022-11-24

申请号：US17302997

申请日：2021-05-18

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Sony AKKARAKARAN ,  Tao LUO ,  Junyi LI ,  Jelena DAMNJANOVIC ,  Arumugam CHENDAMARAI KANNAN ,  Wooseok NAM ,  Yan ZHOU ,  Juan MONTOJO ,  Xiaoxia ZHANG ,  Jing SUN

IPC: H04W52/02 ,  H04W76/28 ,  H04W72/04 ,  H04W24/08 ,  H04W72/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a transmit UE, a sidelink wake-up signal (WUS) that indicates the UE is to monitor a first subset of resources, of a set of resources, for sidelink control information (SCI) from the transmit UE, the set of resources being associated with an active monitoring state of a discontinuous reception (DRX) cycle. The UE may monitor the first subset of resources for the SCI. The UE may sense for signals associated with a sidelink control signal, the sidelink control signal being associated with at least one other UE, using a second subset of resources, of the set of resources. Numerous other aspects are described.

公开(公告)号：US20220369351A1

公开(公告)日：2022-11-17

申请号：US17662839

申请日：2022-05-10

Applicant: QUALCOMM Incorporated

Inventor： Iyab Issam SAKHNINI ,  Tao LUO ,  Xiaoxia ZHANG ,  Jing SUN

IPC: H04W72/12 ,  H04W72/04

Abstract: Methods, apparatuses, and computer readable media for indicating a time gap in case of a BWP switch are provided. A base station may transmit to a UE, and the UE may receive from the base station, an indication of a BWP switch from a first BWP to a second BWP. The UE and the base station may communicate with each other via a PDSCH or a PUSCH, in the second BWP based on a time gap. The time gap may be based on at least one of a first time parameter associated with the indication or a second time parameter associated with the BWP switch. The time gap may have a duration that is at least as long as a first duration of a BWP switch delay associated with switching from the first BWP to the second BWP.

公开(公告)号：US20220369344A1

公开(公告)日：2022-11-17

申请号：US17321132

申请日：2021-05-14

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Ozcan OZTURK ,  Tao LUO ,  Juan MONTOJO ,  Peter GAAL ,  Sony AKKARAKARAN

IPC: H04W72/12 ,  H04W74/08

Abstract: Aspects of the present disclosure provide systems and methods for assigning one or more user equipments (UEs) at one or more corresponding starting positions of multiple slots to perform channel access procedures, such as listen before talk (LBT) procedures in New Radio unlicensed band (NR-U) sidelink communications. The network entity may indicate, to a UE, a starting position in a multi-opportunity grant (e.g., a DCI scheduling multiple slots). The network entity may multiplex different transmitter UEs with different starting positions. If the channel accessing procedure is successful, the transmitter UE with the earliest starting position than the rest may block the rest of the transmitter UEs. In some cases, starting position hopping may be used so that the multiple UEs may have different priority at different slots. In some cases, the DCI may include LBT parameters that are inherited from NR-U uplink transmission configurations.

公开(公告)号：US20220369125A1

公开(公告)日：2022-11-17

申请号：US17691536

申请日：2022-03-10

Applicant: QUALCOMM INCORPORATED

Inventor： Giovanni CHISCI ,  Jing SUN ,  Arumugam CHENDAMARAI KANNAN ,  Vinay CHANDE ,  Sumant Jayaraman IYER ,  Marco PAPALEO ,  Tao LUO ,  Aleksandar DAMNJANOVIC ,  Xiaoxia ZHANG

IPC: H04W16/28

Abstract: A method for wireless communication includes a first wireless communication device receiving, from a second wireless communication device, one or more signals for each of a plurality of candidate sensing beams and a transmission beam. The method also includes determining, for each of the plurality of candidate sensing beams based on at least one of the one or more signals for the respective candidate sensing beam, a first signal measurement. The method also includes determining, based on at least one of the one or more signals for the transmission beam, a second signal measurement with respect to a direction of the transmission beam, and determining, for each of the plurality of candidate sensing beams based on the respective first signal measurement and the second signal measurement, beam coverage information with respect to the transmission beam direction.

公开(公告)号：US20220361253A1

公开(公告)日：2022-11-10

申请号：US17302545

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO ,  Peter GAAL ,  Xiaoxia ZHANG ,  Jing SUN ,  Junyi LI ,  Jelena DAMNJANOVIC

IPC: H04W74/08 ,  H04L27/26

Abstract: Aspects of the present disclosure allow a base station to simultaneously send SSBs to a UE and to associate different ROs or designated subsets of preambles with the simultaneously transmitted SSBs. The base station may configure a time or frequency offset for different ROs, or a number of preamble cyclic shifts associated with the SSBs. The base station then simultaneously sends a plurality of SSBs to the UE, where each of the SSBs is associated with a different beam, and where each of the SSBs is associated with a different RO or a designated subset of preambles. After the UE simultaneously obtains the SSBs from the base station, the UE may determine the offset for one of the different ROs, or the number of preamble cyclic shifts associated with one of the SSBs. The UE may then send a preamble to the base station in response to the determination.

公开(公告)号：US20220361221A1

公开(公告)日：2022-11-10

申请号：US17662208

申请日：2022-05-05

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04W72/12 ,  H04W72/14 ,  H04L1/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying a plurality of physical downlink control channel (PDCCH) candidates that are to be monitored for downlink control information (DCI). The plurality of PDCCH candidates may include a PDCCH candidate having a first aggregation level and a set of linked PDCCH candidates, for repetitions of DCI, having a second aggregation level. The PDCCH candidate may overlap with one PDCCH candidate of the set of linked PDCCH candidates. The UE may communicate according to one or more rules for the PDCCH candidate overlapping with the one PDCCH candidate of the set of linked PDCCH candidates. Numerous other aspects are described.