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公开(公告)号:US11990982B2
公开(公告)日:2024-05-21
申请号:US17805123
申请日:2022-06-02
Applicant: QUALCOMM Incorporated
Inventor: Kiran Venugopal , Changhwan Park , Junyi Li
CPC classification number: H04B7/18582 , H04B7/18543 , H04W56/005 , H04W84/06
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node associated with a non-terrestrial network, an indication of one or more model parameters that indicate one or more of a time correction or a frequency correction. The UE may transmit, to the network node, an uplink transmission based at least in part on the one or more model parameters. Numerous other aspects are described.
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公开(公告)号:US11895608B2
公开(公告)日:2024-02-06
申请号:US17653715
申请日:2022-03-07
Applicant: QUALCOMM Incorporated
Inventor: Liangping Ma , Xiao Feng Wang , Alberto Rico Alvarino , Umesh Phuyal , Jun Ma , Changhwan Park , Ayan Sengupta , Juan Montojo , Peter Gaal , Wanshi Chen , Bharat Shrestha , Huilin Xu
CPC classification number: H04W56/004 , H04L1/08 , H04L1/1812 , H04W72/23
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a non-terrestrial network (NTN) entity, a message that is associated with an uplink grant. The UE may select, based at least in part on the message, either a cell-specific offset or an updated offset that is indicated after initial access, as a timing offset that accounts for a propagation delay between a base station of the NTN and the UE. The UE may transmit, to the NTN entity, an uplink communication using the timing offset. Numerous other aspects are described.
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33.
公开(公告)号:US20230403585A1
公开(公告)日:2023-12-14
申请号:US17838052
申请日:2022-06-10
Applicant: QUALCOMM Incorporated
Inventor: Jae Ho Ryu , Changhwan Park , Liangping Ma , Bharat Shrestha , Hari Sankar
IPC: H04W24/08
CPC classification number: H04W24/08
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may support mobility between a non-terrestrial network (NTN) cell and a terrestrial network (TN) cell. If the UE is connected to an NTN cell, the UE may determine timing for a neighboring TN cell using a reference timestamp. A first network entity supporting the NTN cell may request the reference timestamp from a second network entity supporting the TN cell. The second network entity may output the timestamp in response to the request. The first network entity may obtain the timestamp and output an indication of the timestamp to the UE in a measurement gap configuration. The UE may use the reference timestamp to determine timing for a measurement gap and may monitor for a signal (e.g., a synchronization signal) from the second network entity supporting the TN cell during the measurement gap.
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公开(公告)号:US11805492B2
公开(公告)日:2023-10-31
申请号:US17655883
申请日:2022-03-22
Applicant: QUALCOMM Incorporated
Inventor: Liangping Ma , Xiao Feng Wang , Peter Gaal , Changhwan Park , Jun Ma , Bharat Shrestha , Ayan Sengupta , Alberto Rico Alvarino , Umesh Phuyal , Huilin Xu , Harikumar Krishnamurthy
CPC classification number: H04W56/006 , G01S19/41 , H04W84/06
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a differential UE-specific timing advance (TA) based at least in part on a difference between a first UE-specific TA associated with a current global navigation satellite system (GNSS) position fix and a second UE-specific TA associated with a previous GNSS position fix. The UE may transmit, to a non-terrestrial network (NTN) node, an uplink message at a time that is based at least in part on the differential UE-specific TA. Numerous other aspects are described.
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公开(公告)号:US20230246755A1
公开(公告)日:2023-08-03
申请号:US18296507
申请日:2023-04-06
Applicant: QUALCOMM Incorporated
Inventor: Kazuki Takeda , Changhwan Park
IPC: H04L5/00
CPC classification number: H04L5/0032 , H04L5/001 , H04L5/0098 , H04L5/0051
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, while the UE is in wireless communications with a first serving cell supported by a base station, an indication to activate or deactivate a second serving cell supported by the base station. The UE may receive a reference signal from the base station via the first serving cell, the reference signal received a duration of time after receipt of the indication, where the duration of time is an interruption period for the wireless communications with the first serving cell. The UE may then resume the wireless communications with the first serving cell based on the interruption period ending at receipt of the reference signal.
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公开(公告)号:US20230180153A1
公开(公告)日:2023-06-08
申请号:US17542248
申请日:2021-12-03
Applicant: QUALCOMM Incorporated
Inventor: Kiran Venugopal , Wooseok Nam , Changhwan Park , Tao Luo , Junyi Li
IPC: H04W56/00
CPC classification number: H04W56/0005 , H04W56/0035
Abstract: Methods, systems, and devices for wireless communications are described. For instance, a user equipment (UE) may receive and measure a reference signal received from a node and may transmit, to the node, a channel feedback report using a resource, the channel feedback report including a first Doppler shift associated with measuring the reference signal. In some examples, the uplink resource may be one of a set of uplink resources indicated to the UE, and the uplink resource may be based on a mobility parameter associated with the UE. Additionally or alternatively, the UE may measure a second reference signal received from the node and may transmit, to the node, a second channel feedback report using a second resource, where the second resource is based on measuring the first reference signal and where the second channel feedback report includes a second Doppler shift associated with measuring the second reference signal.
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公开(公告)号:US11558885B2
公开(公告)日:2023-01-17
申请号:US17236943
申请日:2021-04-21
Applicant: QUALCOMM Incorporated
Inventor: Peter Pui Lok Ang , Huilin Xu , Heechoon Lee , Awlok Singh Josan , Wooseok Nam , Changhwan Park
Abstract: A wireless communication network includes a user equipment (UE) to receive a set of instructions, from a base station, to perform a simultaneous change of a set of current bandwidth parts (BWPs) to a set of new BWPs in a set of cells. The set of instructions schedules set of slots for the UE to receive and/or transmit a set of downlink and/or uplink signals via the set of new BWPs, respectively. The UE also determines a delay associated with performing the simultaneous change of the set of current BWPs to the set of new BWPs, respectively, and determines whether it is able to receive and/or transmit the set of downlink and/or uplink signals via the set of new BWPs in the set of slots satisfying the delay, respectively. A base station is also included to communicate with the UE to effectuate the aforementioned operation.
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公开(公告)号:US20220368410A1
公开(公告)日:2022-11-17
申请号:US17706018
申请日:2022-03-28
Applicant: QUALCOMM Incorporated
Inventor: Liangping Ma , Xiao Feng Wang , Alberto Rico Alvarino , Ayan Sengupta , Bharat Shrestha , Umesh Phuyal , Jun Ma , Peter Gaal , Juan Montojo , Changhwan Park , Wanshi Chen , Huilin Xu
Abstract: Methods, systems, and devices for wireless communications are described. A network node and a user equipment (UE) may establish a connection between the UE and the network node of a non-terrestrial network. The UE may receive, from the network node and based on a type of orbit around Earth of the network node, a first value or the first value and a second value associated with a position or a velocity of the network node relative to a terrestrial-based reference. The UE and the network node may communicate based on the position or the velocity of the network node, or both. In some cases, the position or the velocity of the network node is based on an altitude of the network node, the first value, the second value, and a third value.
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公开(公告)号:US20220247529A1
公开(公告)日:2022-08-04
申请号:US17586574
申请日:2022-01-27
Applicant: QUALCOMM Incorporated
Inventor: Kazuki Takeda , Changhwan Park , Jae Ho Ryu
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a secondary cell activation message that indicates a secondary cell is to be activated at the UE in addition to a primary cell. The UE may identify, based at least in part on the secondary cell activation message, a slot location of a first portion of aperiodic reference signals for cell activation measurements and a slot offset between the first portion of the aperiodic reference signals and a second portion of the aperiodic reference signals, the slot offset comprising non-consecutive slots with respect to the slot location. The UE may measure one or more characteristics of the secondary cell based at least in part on the aperiodic reference signals.
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公开(公告)号:US12279204B2
公开(公告)日:2025-04-15
申请号:US17885394
申请日:2022-08-10
Applicant: QUALCOMM Incorporated
Inventor: Le Liu , Huilin Xu , Hung Dinh Ly , Yuchul Kim , Linhai He , Prashant Sharma , Ahmed Elshafie , Changhwan Park , Wei Yang
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect, using a low-power receiver of the UE, a low-power synchronization signal (LP-SS) that is associated with a first coverage area that is larger than a second coverage area associated with a legacy synchronization signal block. The UE may monitor, using the low-power receiver, for a low-power wake up signal, based at least in part on the LP-SS, that is associated with a third coverage area that is larger than a fourth coverage area associated with a legacy wake up signal. Numerous other aspects are described.
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