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公开(公告)号：US12048006B2
公开(公告)日：2024-07-23
申请号：US17305793
申请日：2021-07-14
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Dan Zhang , Junyi Li
IPC: H04W74/0816 , H04W72/0446
CPC classification number: H04W74/0816 , H04W72/0446
Abstract: Various aspects of the present disclosure generally relate to wireless communication and radar detection. In some aspects, a radar device may perform, at an initial listen before talk (LBT) frame boundary associated with an initial LBT frame of a plurality of LBT frames, an initial LBT procedure, wherein the initial LBT frame has a frame length that is larger than a propagation delay associated with a maximum detectable range associated with the radar device; and transmit a radar signal based at least in part on a successful result of the initial LBT procedure or an additional LBT procedure. Numerous other aspects are provided.
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公开(公告)号：US11902002B2
公开(公告)日：2024-02-13
申请号：US17388430
申请日：2021-07-29
Applicant: QUALCOMM Incorporated
Inventor： Liangping Ma , Bharat Shrestha , Xiao Feng Wang , Ayan Sengupta , Peter Gaal , Alberto Rico Alvarino , Umesh Phuyal , Jun Ma , Dan Zhang
Abstract: Methods, systems, and devices for wireless communications are described. In some networks, a user equipment (UE) may switch between serving beams of a transmitting device that are associated with different bandwidth parts of a radio frequency spectrum. To improve aspects of beam measurement and selection, a UE may be configured to support various techniques for beam measurement according to the different bandwidth parts. For example, a UE may receive a beam measurement configuration associated with one or more beams, and may monitor for reference signals associated with the beams using the different bandwidth parts. The UE may determine a channel quality of one or more of the beams based on the monitoring, and transmit a beam measurement report to the network in accordance with the beam measurement configuration. In some examples, such a report may be transmitted based on the UE determining that an event condition is satisfied.
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公开(公告)号：US11852719B2
公开(公告)日：2023-12-26
申请号：US17101315
申请日：2020-11-23
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Dan Zhang , Junyi Li
CPC classification number: G01S13/9023 , G01S7/4056 , G06V40/10 , H04L67/12 , G08G1/166
Abstract: Methods, systems, and devices for wireless communications are described. User equipment (UE), such as vehicles, may implement radar transmissions to detect and avoid potential collisions with a target such as other UE or pedestrians. A first UE may receive an indication of a location of a second UE and an indication of one or more parameters associated with radar transmission from the second UE. The first UE may also receive a radio frequency waveform that includes a first component associated with the radar transmissions from the second UE and a second component that is associated with reflected radar transmission from the first UE. The first UE may compensate for an interference from the first component based on the location of the second UE and the one or more parameters. The first UE may generate a radar image from the received radio frequency waveform based on compensating for the interference.
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公开(公告)号：US11764867B2
公开(公告)日：2023-09-19
申请号：US17154497
申请日：2021-01-21
Applicant: QUALCOMM Incorporated
Inventor： Iyab Issam Sakhnini , Jun Ma , Qiang Wu , Xiao Feng Wang , Dan Zhang , Huilin Xu
CPC classification number: H04B7/18543 , H04B7/0617 , H04B7/1855 , H04B7/18519 , H04W52/143 , H04W68/005 , H04W72/23
Abstract: This disclosure provides systems, methods and apparatus for communicating a satellite behavior change. In one aspect, a satellite identifies a satellite behavior change to occur for the satellite of a non-terrestrial network for cellular communications. The apparatus also signals the satellite behavior change to a user equipment serviced by the satellite. In another aspect, a user equipment obtains, from a satellite servicing the user equipment, a signaling of a satellite behavior change to occur for the satellite. The user equipment also adjusts one or more user equipment parameters for cellular communication based on the obtained signaling. The satellite behavior change may include a satellite attitude or a transmit power or coverage area of one or more satellite beams. The user equipment parameters may include satellite or beam selection or reselection to listen to paging information, satellite or beam handover parameters, or transmit power control parameters.
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公开(公告)号：US11611854B2
公开(公告)日：2023-03-21
申请号：US17196913
申请日：2021-03-09
Applicant: QUALCOMM Incorporated
Inventor： Dan Zhang , Kapil Gulati , Junyi Li
IPC: H04W4/08 , H04W72/121 , H04W72/14 , G01S13/87 , G01S13/931
Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for coordinated slot-based radar sensing. A first radar device, which may be a radar group leader, may broadcast information indicative of a wireless device group that includes the first wireless device. The first wireless device may receive, from a second wireless device that receives the broadcast information, a request to join the wireless device group that includes the first wireless device. The first wireless device may transmit, to the second wireless device based on the request, a grant or rejection to join the wireless device group that includes the first wireless device. The first wireless device may further transmit a transmission schedule to at least one wireless device of the wireless device group, where the at least one wireless device may include the second wireless device if the first wireless device transmits the grant.
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Patent Agency Ranking
公开(公告)号：US11522647B2
公开(公告)日：2022-12-06
申请号：US16891830
申请日：2020-06-03
Applicant: QUALCOMM Incorporated
Inventor： Huilin Xu , Jun Ma , Xiao Feng Wang , Dan Zhang , Peter Gaal , Iyab Issam Sakhnini
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may map a plurality of resource elements from an orthogonal frequency division multiplexing (OFDM) resource structure to respective time-domain samples of a plurality of time-domain samples included in a single-carrier resource structure. The BS may transmit the plurality of time-domain samples to a user equipment (UE). Numerous other aspects are provided.
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公开(公告)号：US20220365167A1
公开(公告)日：2022-11-17
申请号：US17246308
申请日：2021-04-30
Applicant: QUALCOMM Incorporated
Inventor： Dan Zhang , Kapil Gulati , Junyi Li
IPC: G01S7/00 , H04W4/40 , G01S13/931
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a configuration to perform cooperative radar sensing. The configuration may indicate resources for the first UE to use to communicate radar measurement reports. The UE may receive, from another UE on the identified resources, a radar measurement report that includes values for one or more radar measurement parameters for a first radar target and a time stamp associated with the values. The UE may identify a second set of values for the radar measurement parameters (e.g., its own measurements, or measurements received from a third UE in another radar measurement reports). The UE may generate a combined set of values for the radar measurement parameters for each time stamp by combining the first set of values and the second set of values.
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公开(公告)号：US20220349985A1
公开(公告)日：2022-11-03
申请号：US17243518
申请日：2021-04-28
Applicant: QUALCOMM Incorporated
Inventor： Dan Zhang , Kapil Gulati , Junyi Li
IPC: G01S7/02 , G01S7/00 , G01S13/931 , G01S7/35
Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) (e.g., a vehicle) may determine a configuration, including an offset value for the radar waveform, for transmitting a radar waveform for multiple radar transmitters. The UE may transmit, according to the identified configuration, a first instance of the radar waveform with a first radar transmitter. The UE may also transmit a second instance of the radar waveform with a second radar transmitter. The second instance of the radar waveform may be offset from the first instance of the radar waveform by the offset value. The Offset value may be a time offset, a frequency offset, or both. The UE may identify at least one object, and may filter our interference between the first instance of the radar waveform and the second instance of the radar waveform based on the offset.
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公开(公告)号：US11490426B2
公开(公告)日：2022-11-01
申请号：US16992678
申请日：2020-08-13
Applicant: QUALCOMM Incorporated
Inventor： Dan Zhang , Xiao Feng Wang , Peter Gaal , Jun Ma , Qiang Wu , Iyab Issam Sakhnini , Huilin Xu
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station by initiating a random access procedure with a two-root preamble. The UE may receive, from the base station, control signaling that indicates a set of root preamble sequences. The UE may transmit, to the base station, a preamble signal that is generated based on a first root preamble sequence and a second root preamble sequence of the set of root preamble sequences. The UE may then monitor for a preamble response based on the preamble signal. In some cases, the base station may be a base station in a terrestrial network. In other cases, the base station may be a satellite in a non-terrestrial network (NTN).
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公开(公告)号：US11323174B2
公开(公告)日：2022-05-03
申请号：US16909793
申请日：2020-06-23
Applicant: QUALCOMM Incorporated
Inventor： Xiao Feng Wang , Jun Ma , Huilin Xu , Iyab Issam Sakhnini , Dan Zhang
Abstract: Disclosed are techniques for paging a user terminal (UT) in a non-terrestrial network (NTN), which may define a plurality of NTN tracking areas (TA). Each NTN TA, served by one or more satellite beams, may move or may be a geographic region. The UT may report its location before changing its connection state with the NTN and may also update its location whenever it moves a threshold distance from the previous reported location. The NTN may estimate UT's current location based on the last reported location and other factors including mobility of the UT. The NTN may determine a UT TA as the NTN TA that corresponds to the current location, and may page the UT through one or more satellite beams corresponding to the UT TA.
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