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公开(公告)号：US20220398919A1
公开(公告)日：2022-12-15
申请号：US17850877
申请日：2022-06-27
Applicant: QUALCOMM Incorporated
Inventor： Michaela Vanderveen , Hong Cheng , Sudhir Kumar Baghel , Libin Jiang
IPC: G08G1/017 , G01S5/00 , G08G1/0967 , G01S5/02 , G01S13/931 , G01S13/74 , G05D1/00 , G06V20/58 , H01Q1/22 , H01Q1/32
Abstract: Methods, systems, and devices for ranging are described. A multi-phase distributed ranging technique includes transmitting and receiving vehicle information messages during a first time interval, where the vehicle information messages include at least a vehicle identifier and resource information. The multi-phase technique further includes transmitting and receiving ranging signals during a second time interval, and determining times of arrival of received ranging signals. A centralized ranging technique includes receiving resource assignments from an access point, transmitting ranging signals according to the resource assignments, and determining times of arrival of received ranging signals.
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公开(公告)号：US11431533B2
公开(公告)日：2022-08-30
申请号：US15934705
申请日：2018-03-23
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Tien Viet Nguyen , Sudhir Kumar Baghel , Libin Jiang , Zhibin Wu
Abstract: Various aspects of the disclosure relate to the selection and use of modulation and coding scheme (MCS) values. For example, a first MCS table may be used for a first condition and a second MCS table used for a second condition. The disclosure relates in some aspects to inter-device signaling that indicates which MCS table is to be used for communication between the devices.
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公开(公告)号：US11411683B2
公开(公告)日：2022-08-09
申请号：US16259878
申请日：2019-01-28
Applicant: QUALCOMM Incorporated
Inventor： Zhibin Wu , Sudhir Kumar Baghel , Junyi Li , Libin Jiang , Kapil Gulati , Shailesh Patil , Tien Viet Nguyen
IPC: H04L1/16 , H04W74/08 , H04B7/08 , H04W72/04 , H04W72/08 , H04W8/00 , H04W76/28 , H04B7/06 , H04W4/44
Abstract: Described are methods for interference detection and management in a millimeter wave communications system. A V2X communications system may support interference management procedures that comprise scheduling a system wide training interval in a transmission timeslot, suspending traffic transmissions on a link in the communications system during the training interval to perform training on the link, and resuming traffic transmissions on the link if interference is not detected during the training interval. Interference management procedures may also include receiving at a node, unique parameters transmitted from another node in a communication system during a discovery stage, determining whether interference will occur at the node based on the received unique parameters, and suspending transmissions to and from the node if it is determined interference will occur at the node.
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公开(公告)号：US11272426B2
公开(公告)日：2022-03-08
申请号：US15988691
申请日：2018-05-24
Applicant: QUALCOMM Incorporated
Inventor： Zhibin Wu , Sudhir Kumar Baghel , Junyi Li , Kapil Gulati , Tien Viet Nguyen , Libin Jiang , Shailesh Patil
IPC: H04W48/08 , H04B7/06 , H04W72/04 , H04B7/08 , H04W4/46 , H04W8/00 , H04W72/02 , H04W4/40 , G08G1/01 , G08G1/16 , H04J11/00
Abstract: Techniques are described that support techniques for directional discovery in a millimeter wave communications system. A vehicle-to-everything (V2X) communications system may support beam discovery procedures that use directional beams to discover other entities, establish directional communication links with other entities, or maintaining directional communication links with other entities. The beam discovery procedure may include a sweep pattern where a transmitting entity may probe with directional beams in a plurality of beam directions. During a beam discovery procedure a transmitting entity may transmit discovery signals in a plurality of different directions and a receiving entity may listen for the discovery signals in a plurality of different directions. The sweep patterns of the transmitting entity and the receiving entity may be coordinated to increase a likelihood that the receiving entity will discover the transmitting entity.
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公开(公告)号：US10609679B2
公开(公告)日：2020-03-31
申请号：US14811407
申请日：2015-07-28
Applicant: QUALCOMM Incorporated
Inventor： Libin Jiang , Shailesh Patil
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines a position of the apparatus. The apparatus broadcasts information in a first subset of a set of resources. The information includes the position of the apparatus, a sequence ID, and a resource ID associated with a second subset of the set of resources. The apparatus broadcasts a sequence in at least one symbol of the second subset of the set of resources. The at least one symbol is identified by the resource ID and the sequence is identified by the sequence ID.
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公开(公告)号：US10555131B2
公开(公告)日：2020-02-04
申请号：US16417465
申请日：2019-05-20
Applicant: QUALCOMM Incorporated
Inventor： Urs Niesen , Junyi Li , Jubin Jose , Libin Jiang
Abstract: A method for position determination based on carrier-phase measurements is disclosed. The method comprises receiving one or more downlink signals transmitted from a base station (BS) during a downlink period, wherein the downlink signals are modulated using a downlink carrier wave, measuring, during the downlink period, a first carrier phase associated with the downlink carrier wave, estimating, during an uplink period subsequent to the downlink period, an integer ambiguity (IA) change, and measuring, during a later downlink period subsequent to the uplink period, a second carrier phase based on the resolved first carrier phase and the estimated IA change.
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公开(公告)号：US10517072B2
公开(公告)日：2019-12-24
申请号：US15435255
申请日：2017-02-16
Applicant: QUALCOMM Incorporated
Inventor： Shailesh Patil , Libin Jiang
Abstract: Various aspects related to selecting a resource selection procedure for V2V communications are described. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus for selecting a resource selection procedure for V2V transmissions, is described. The apparatus, e.g., a UE, may be configured to identify that recent sensing history information at the UE is unavailable for a sensing based resource selection procedure. The UE may be further configured to select, in response to identifying that the recent sensing history information is unavailable, a resource selection procedure based on configuration information obtained from a network entity. In various configurations, the UE may select a resource for a V2V transmission based on the resource selection procedure selected based on the configuration information.
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公开(公告)号：US10510252B2
公开(公告)日：2019-12-17
申请号：US15706558
申请日：2017-09-15
Applicant: QUALCOMM Incorporated
Inventor： Libin Jiang , Shailesh Patil , Junyi Li , Georgios Tsirtsis , Zhibin Wu , Kapil Gulati , Sudhir Kumar Baghel , Tien Viet Nguyen , Durga Prasad Malladi
IPC: H04B7/00 , G08G1/16 , G08G1/0967 , H04B7/0408 , H04L12/12 , H04W84/00 , H04B7/06
Abstract: Aspects of the disclosure relate to beamforming from a vehicle user equipment (UE). In a first aspect, a beamform vector is selected based on beamform data received from a scheduling entity. Here, the beamform data corresponds to a path between a vehicle UE and a base station or another vehicle, and the beamform vector includes respective phases and amplitudes corresponding to each of a plurality of antennas of the vehicle UE. A beam is then generated in accordance with the beamform vector. In another aspect, a database of beamform data is maintained, and beamform data from the database is retrieved. Here, the retrieved beamform data corresponds to a particular location pair that includes a first location associated with a location of a vehicle UE, and a second location associated with a location of a base station or another vehicle. The beamform data is then transmitted to the vehicle UE.
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公开(公告)号：US10477527B2
公开(公告)日：2019-11-12
申请号：US15177186
申请日：2016-06-08
Applicant: QUALCOMM Incorporated
Inventor： Libin Jiang , Sudhir Kumar Baghel , Shailesh Patil , Saurabha Rangrao Tavildar , Kapil Gulati
Abstract: The present disclosure enables the assignment of multiple semi-persistent resource assignments at the same time for use in V2V communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE (e.g., a vehicle). The UE may determine at least one resource pattern required for V2V communications. The UE may also send assistance information for the at least one resource pattern to a base station. Further, the UE may receive, from the base station, a response associated with the at least one resource pattern. In an aspect, the response may include an index of approved resource patterns. Further still, the UE may receive, from the base station, an activation grant for a resource assignment for the at least one resource pattern. In an aspect, activation grant may include the index of approved resource patterns being activated.
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公开(公告)号：US20190253866A1
公开(公告)日：2019-08-15
申请号：US16239383
申请日：2019-01-03
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Zhibin Wu , Junyi Li , Sudhir Kumar Baghel , Kapil Gulati , Libin Jiang
CPC classification number: H04W8/005 , H04L5/0037 , H04L5/0069 , H04L27/2607 , H04W72/005
Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may broadcast a discovery preamble to identify a receiving device or to identify a suitable beam for communicating with a receiving device prior to broadcasting a discovery message to the receiving device. In such systems, the wireless device may use the techniques described herein to generate the discovery preamble and to reduce interference between discovery preamble transmissions and avoid data loss. In one example, a wireless device may append a cyclic prefix (CP) to a discovery preamble with a suitable length to protect the discovery preamble from interference from another transmission. In another example, the wireless device may generate a cyclically periodic signal including multiple copies of the discovery preamble so a receiving device may be able to receive a portion of the signal and identify the discovery preamble.
