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公开(公告)号:US20200351918A1
公开(公告)日:2020-11-05
申请号:US16863650
申请日:2020-04-30
Applicant: QUALCOMM Incorporated
Inventor: Xiao Feng WANG , Iyab Issam SAKHNINI , Peter GAAL , Jun MA , Huilin XU
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may determine at least one of a variable random access response (RAR) window start time, a variable maximum quantity of slots for an index of a first slot of a physical random access channel occasion, or scheduling information related to one or more variable delays for an uplink transmission. The BS may transmit, to a user equipment, at least one of information that identifies the RAR window start time, information that identifies the variable maximum quantity of slots, or the scheduling information. Numerous other aspects are provided.
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122.
公开(公告)号:US20200313817A1
公开(公告)日:2020-10-01
申请号:US16823675
申请日:2020-03-19
Applicant: QUALCOMM Incorporated
Inventor: Huilin Xu , Xiao Feng WANG , Iyab Issam SAKHNINI , Jun MA , Dan ZHANG
Abstract: Various designs for reference signals for beam management (BM) in non-terrestrial networks (NTNs) in 5G systems are discussed. NTN platforms determine to transmit a BM reference signal associated with a beam in an NTN. The BM reference signal is configured to facilitate beam switching at a wireless communication entity, and the beam having a beam bandwidth. The NTN platforms determines a frequency resource for transmitting the BM reference signal, and transmits, to a wireless communication entity, the BM reference signal in the determined frequency resource. The wireless communication entity monitors the frequency resource, receives the BM reference signal associated with the beam in the frequency resource, and manages beam selection based on the received BM reference signal. Other aspects and features are also claimed and described.
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公开(公告)号:US20250048267A1
公开(公告)日:2025-02-06
申请号:US18363559
申请日:2023-08-01
Applicant: QUALCOMM Incorporated
Inventor: Huilin XU , Xiao Feng WANG , Jun MA
Abstract: Methods, systems, and devices for wireless communication are described. In some systems, a network entity may transmit, to a user equipment (UE) while the UE operates in an active state, a control signal including a request for the UE to transition to an inactive state for at least a time period and including a set of communication parameters for subsequent communications after operating in the inactive state for at least the time period. The active state may be associated with monitoring for a downlink control channel and the inactive state may be associated with skipping monitoring for the downlink control channel. The UE may transition from the active state to the inactive state for at least the time period based on the control signal. The UE may subsequently operate in the active state after the time period in accordance with the set of communication parameters indicated via the control signal.
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公开(公告)号:US20240324018A1
公开(公告)日:2024-09-26
申请号:US18261087
申请日:2021-02-12
Applicant: QUALCOMM Incorporated
Inventor: Liangping MA , Xiao Feng WANG , Jun MA , Peter GAAL , Juan MONTOJO , Wanshi CHEN , Alberto RICO ALVARINO , Ayan SENGUPTA , Bharat SHRESTHA , Huilin XU , Yiqing CAO , Umesh PHUYAL
IPC: H04W74/0833 , H04B7/06
CPC classification number: H04W74/0833 , H04B7/0617 , H04B7/0626
Abstract: Certain aspects of the present disclosure provide techniques for beam selection for random access. A method that may be performed by a user equipment (UE) includes receiving, from a network entity, via a first beam, system information associated with at least a first plurality of beams that are within a coverage area of the first beam. The method also includes selecting a second beam among at least the first plurality of beams based at least in part on the system information and performing a random access procedure via the selected second beam.
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公开(公告)号:US20240306143A1
公开(公告)日:2024-09-12
申请号:US18178946
申请日:2023-03-06
Applicant: QUALCOMM Incorporated
Inventor: Lianghai JI , Jun MA , Alexander DOROSENCO , Liang ZHAO , David TUCK , Jordan COOKMAN , Angelica WONG , Liangping MA , Mohamad SAYED HASSAN , Qiang WU , Mehmet Izzet GURELLI
IPC: H04W72/12 , H04W72/563
CPC classification number: H04W72/1215 , H04W72/563 , H04W88/06
Abstract: Certain aspects of the present disclosure provide techniques reducing wireless interference in wireless communications networks by, for example, enabling a coexistence period during which transmission over a first wireless communication band is deprioritized and reception over a second wireless communication band, different from the first wireless communication band, is prioritized; and receiving positioning data from a positioning system via the second wireless communication band during the coexistence period.
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公开(公告)号:US20240276404A1
公开(公告)日:2024-08-15
申请号:US18440963
申请日:2024-02-13
Applicant: QUALCOMM Incorporated
Inventor: Alberto RICO ALVARINO , Xiao Feng WANG , Liangping MA , Ayan SENGUPTA , Jun MA , Huilin XU , Peter GAAL , Bharat SHRESTHA
IPC: H04W56/00 , H04W4/029 , H04W74/0833
CPC classification number: H04W56/0005 , H04W4/029 , H04W74/0833
Abstract: Non-terrestrial networks (NTNs) may establish uplink (UL) and downlink (DL) radio frame timing structures to efficiently account for propagation delay and propagation delay variation associated with communications in the NTN. NTNs may manage (synchronize) radio frame timing structures of base stations (e.g., satellites) and user equipment (UEs) in the NTN. Further, UEs may determine timing advance (TA) values to be applied to UL transmissions based on their respective scheduling offset (e.g., offset in UL and DL radio frame timing structures), as well as based on propagation delay or round trip time (RTT). As such, served UEs may determine UL timing such that UL transmissions from the UEs to a satellite arrives at the satellite in a time synchronized manner. In other cases, a satellite may determine UL timing, based on reception timing, such that various UEs in the NTN may implement uniform UL and DL radio frame timing structures.
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公开(公告)号:US20240267865A1
公开(公告)日:2024-08-08
申请号:US18567225
申请日:2021-08-06
Applicant: QUALCOMM Incorporated
Inventor: Liangping MA , Xiao Feng WANG , Changhwan PARK , Peter GAAL , Alberto RICO ALVARINO , Ayan SENGUPTA , Bharat SHRESTHA , Umesh PHUYAL , Huilin XU , Jun MA , Wanshi CHEN , Juan MONTOJO , Yiqing CAO
CPC classification number: H04W56/0045 , H04B7/18513
Abstract: A user equipment (UE) receives one or more timing advance commands from a non-terrestrial network (NTN). The UE resets, after a GNSS fix, a cumulative timing advance value based on the one or more timing advance commands from the NTN and transmits an uplink transmission with a timing advance based on a self-estimated delay and the cumulative timing advance value. The UE may adjust a self-estimated delay based on at least one GNSS fix. The UE may transmit an uplink transmission with a timing advance based on the adjusted self-estimated delay and a cumulative timing advance value based on the one or more timing advance commands from the NTN.
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公开(公告)号:US20240267171A1
公开(公告)日:2024-08-08
申请号:US18166289
申请日:2023-02-08
Applicant: QUALCOMM Incorporated
Inventor: Raviteja PATCHAVA , Xiaoxia ZHANG , Iyab Issam SAKHNINI , Jun MA , Morteza SOLTANI , Jing SUN
CPC classification number: H04L5/0023 , H04L27/2601 , H04W8/24
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability signaling indicating that orthogonal time frequency space index modulation (OTFS-IM) is supported by the UE. The UE may receive, based at least in part on the capability signaling, an indication of a subblock size of a subblock and an index modulation pattern associated with the subblock for the OTFS-IM. The UE may perform a communication based at least in part on the indication of the subblock size and the index modulation pattern for the OTFS-IM. Numerous other aspects are described.
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129.
公开(公告)号:US20240259917A1
公开(公告)日:2024-08-01
申请号:US18565405
申请日:2021-08-12
Applicant: QUALCOMM Incorporated
Inventor: Liangping MA , Huilin XU , Xiao Feng WANG , Ayan SENGUPTA , Alberto RICO ALVARINO , Bharat SHRESTHA , Jun MA , Changhwan PARK , Peter GAAL , Umesh PHUYAL , Juan MONTOJO , Wanshi CHEN , Yiqing CAO
CPC classification number: H04W48/10 , H04L5/0051
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a synchronization signal/physical broadcast channel (SS/PBCH) block index, associated with an SS/PBCH block, based at least in part on a set of bits included in a payload of a PBCH of the SS/PBCH block, a demodulation reference signal (DMRS) sequence included in the PBCH, a scrambling sequence associated with the PBCH, or an interleaving associated with the PBCH. Numerous other aspects are described.
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公开(公告)号:US20240235664A1
公开(公告)日:2024-07-11
申请号:US18151844
申请日:2023-01-09
Applicant: QUALCOMM Incorporated
Inventor: Lianghai JI , Jun MA , Liangping MA , Mohamad SAYED HASSAN , Weimin DUAN
IPC: H04B7/185
CPC classification number: H04B7/18545 , H04B7/18541 , H04B7/18589
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first network node, a first indication of satellite assistance information that is associated with a second network node, a second indication of first timing information that is associated with the satellite assistance information, and a third indication of second timing information that is associated with the satellite assistance information. The UE may transmit an uplink signal to the second network node based at least in part on validating the satellite assistance information using the second timing information. Numerous other aspects are described.
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