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公开(公告)号：CA2954883C
公开(公告)日：2019-03-12
申请号：CA2954883
申请日：2015-06-22
Applicant: QUALCOMM INC
Inventor： RAGHAVAN VASANTHAN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
Abstract: A method, an apparatus, and a computer program product for operating a user equipment (UE) are provided. The apparatus establishes a wireless communication link with a millimeter-wave base station (mmW-BS) based on a transmit beam from the mmW-BS, the transmit beam having a transmit beam direction, receives beamforming capability information indicating one of at least a digital, analog, or hybrid beamforming capability associated with the mmW-BS, and scans N transmit beams from the mmW-BS for each of M receive beam directions of the UE based on the beamforming capability information and the transmit beam associated with the wireless communication link.
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公开(公告)号：AU2017334542A1
公开(公告)日：2019-03-07
申请号：AU2017334542
申请日：2017-09-15
Applicant: QUALCOMM INC
Inventor： ISLAM MUHAMMAD NAZMUL , SADIQ BILAL , SAMPATH ASHWIN , SUBRAMANIAN SUNDAR , LI JUNYI , RAGHAVAN VASANTHAN
IPC: H04B7/06
Abstract: Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a set of reference symbols to a user equipment (UE). Each set of reference symbols may include two (or more) beamformed signals. The network device may receive, based on the set of reference symbols, a measurement report from the UE. The measurement report may include a co-phasing indicator associated with the set of reference symbols. The network device may identify, based at least in part on the measurement report, an antenna port precoder configuration to use for communicating with the UE.
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13.发明专利
公开(公告)号：SG11202007742PA
公开(公告)日：2020-09-29
申请号：SG11202007742P
申请日：2019-01-25
Applicant: QUALCOMM INC
Inventor： RAGHAVAN VASANTHAN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
Abstract: Wireless communications systems and methods related to mitigating maximum permissible exposure (MPE) constraints based on user equipment (UE) feedback are provided. A first wireless communication device transmits, to a second wireless communication device, a plurality of reports, each report indicating an allowable transmission power level at the first wireless communication device satisfying an MPE parameter. The first wireless communication device receives, from the second wireless communication device, a first configuration based on an MPE profile associated with the first wireless communication device in response to the plurality of reports. The first wireless communication device transmits, to the second wireless communication device, a first communication signal over a first beam based on the first configuration.
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公开(公告)号：AU2019220463A1
公开(公告)日：2020-08-13
申请号：AU2019220463
申请日：2019-01-08
Applicant: QUALCOMM INC
Inventor： RAGHAVAN VASANTHAN , RYU JUNG , LI JUNYI , CEZANNE JUERGEN
Abstract: Certain aspects of the present disclosure provide techniques for coordinated transmissions in certain systems, such as millimeter wave (mmW) systems. A method of wireless communication by a user equipment (UE) generally includes providing an indication to a plurality of base stations (BSs) of one or more selected beams for transmission by each of the plurality of BSs. The method includes determining one or more co-phase factors. The method includes receiving a coordinated transmission from the plurality of BSs based on the one or more selected beams and the one or more co-phase factors. A method by a BS generally includes receiving the indication from the UE of the one or more selected beam, determining one or more co-phase correction factors, and sending a coordinated transmission to the UE based, at least in part, on the one or more selected beam and the one or more co-phase correction factors.
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公开(公告)号：AU2017334861A1
公开(公告)日：2019-03-14
申请号：AU2017334861
申请日：2017-09-22
Applicant: QUALCOMM INC
Inventor： RAGHAVAN VASANTHAN , SUBRAMANIAN SUNDAR , CEZANNE JUERGEN , SAMPATH ASHWIN , LI JUNYI
Abstract: Certain aspects of the present disclosure provide various appropriate frame structures, sweep sequences, and procedures that may assist in beam sweeping, tracking and recovery.
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Patent Agency Ranking
公开(公告)号：CA3046951A1
公开(公告)日：2018-08-09
申请号：CA3046951
申请日：2017-11-30
Applicant: QUALCOMM INC
Inventor： CEZANNE JUERGEN , RAGHAVAN VASANTHAN , SADIQ BILAL , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
IPC: H04L5/00
Abstract: Techniques are described for wireless communication. A method of wireless communication at a first wireless device includes identifying a template mapping of a plurality of ports to a first plurality of frequency subcarriers and a first plurality of time periods of a template time-frequency resource grid; mapping a plurality of resource elements of an orthogonal frequency-division multiplexing (OFDM) time-frequency resource grid to the plurality of ports based at least in part on the template mapping; receiving a reference signal from a second wireless device, on a subset of the plurality of ports, based at least in part on the mapping; and decoding the reference signal from a subset of the plurality of resource elements based at least in part on the mapping. In some cases, each port of the plurality of ports is associated with a corresponding radio frequency (RF) chain.
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公开(公告)号：CA3046384A1
公开(公告)日：2018-07-12
申请号：CA3046384
申请日：2017-12-27
Applicant: QUALCOMM INC
Inventor： CEZANNE JUERGEN , RAGHAVAN VASANTHAN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
IPC: H04B7/0404 , H04B7/06
Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) may include receiving a beam training sequence transmitted by a network access device on a plurality of transmit beams, identifying, based at least in part on the received beam training sequence, one or more sets of multiple beams that are compatible with at least one configuration for routing signals between antenna subarrays of the UE and transceiver units (TXRUs) of the UE, and transmitting, to the network access device, an indication of the identified one or more sets of multiple beams. A method for wireless communication at the network device may include transmitting the beam training sequence, receiving the indication, and selecting, based at least in part on the received indication, a set of multiple beams of the one or more sets of multiple beams to use to communicate with the UEs.
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公开(公告)号：AU2015375430A1
公开(公告)日：2017-06-08
申请号：AU2015375430
申请日：2015-12-09
Applicant: QUALCOMM INC
Inventor： RAGHAVAN VASANTHAN , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). A wireless communications system may improve UE discovery latency by dynamically selecting and switching beam forming codebooks at the millimeter wave base station and the wireless device. Selecting an optimal beam forming codebook may allow the wireless communication system to improve link margins between the base station without compromising resources. In some examples, a wireless device may determine whether the received signals from the millimeter wave base station satisfy established signal to noise (SNR) thresholds, and select an optimal beam codebook to establish communication. Additionally or alternately, the wireless device may further signal the selected beam codebook to the millimeter wave base station and direct the millimeter wave base station to adjust its codebook based on the selection.
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公开(公告)号：CA2954883A1
公开(公告)日：2016-01-21
申请号：CA2954883
申请日：2015-06-22
Applicant: QUALCOMM INC
Inventor： RAGHAVAN VASANTHAN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
Abstract: A method, an apparatus, and a computer program product for operating a user equipment (UE) are provided. The apparatus establishes a wireless communication link with a millimeter-wave base station (mmW-BS) based on a transmit beam from the mmW-BS, the transmit beam having a transmit beam direction, receives beamforming capability information indicaticating one of at least a digital, analog, or hybrid beamforming capability associated with the mmW-BS, and scans N transmit beams from the mmW-BS for each of M receive beam directions of the UE based on the beamforming capability information and the transmit beam associated with the wireless communication link.
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公开(公告)号：ES2898261T3
公开(公告)日：2022-03-04
申请号：ES18770148
申请日：2018-08-17
Applicant: QUALCOMM INC
Inventor： ISLAM MUHAMMAD NAZMUL , CEZANNE JUERGEN , SAMPATH ASHWIN , RAGHAVAN VASANTHAN
Abstract: Un procedimiento para comunicación inalámbrica realizado por una estación base, que comprende: identificar (205, 1305, 1505) que los datos están disponibles para transmitirse a un equipo de usuario, UE, que está funcionando en un modo de recepción discontinua, DRX; transmitir (210, 1310, 1510), al UE, en base al menos en parte a que los datos están disponibles, un primer mensaje de activación usando una primera banda admitida por el UE; transmitir (210, 1315, 1515), al UE, en base al menos en parte a que los datos están disponibles, un segundo mensaje de activación usando una segunda banda admitida por el UE, siendo la segunda banda diferente de la primera banda; y recibir (215), desde el UE, una señal en la primera banda, indicando la señal un índice de haz asociado con un haz de transmisión de la estación base.
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