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公开(公告)号：CA3028465A1
公开(公告)日：2018-02-08
申请号：CA3028465
申请日：2017-07-28
Applicant: QUALCOMM INC
Inventor： SADIQ BILAL , SAMPATH ASHWIN , LUO TAO , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , ISLAM MUHAMMAD NAZMUL , GOROKHOV ALEXEI YURIEVITCH , PATEL SHRENIK , LI JUNYI
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be communicating with a base station via beamformed transmissions on an active beam. The UE may receive from the base station refined reference signals (RRSs) that include an active beam RRS corresponding to the active beam. The UE may identify that the active beam RRS corresponds to the active beam and perform a beam state measurement on the active beam RRS. The UE may refine the active beam based at least in part on the beam state information of the active beam RRS.
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公开(公告)号：CA3020215A1
公开(公告)日：2017-11-23
申请号：CA3020215
申请日：2017-05-01
Applicant: QUALCOMM INC
Inventor： ISLAM MUHAMMAD NAZMUL , LUO TAO , SADIQ BILAL , CEZANNE JUERGEN , LI JUNYI
IPC: H04W52/50
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a number of beam directions that satisfy a transmission power condition. The UE may select a beam direction for a random access signal by choosing one of the beam directions that satisfies additional criteria, such as transmitting a random access message at the next opportunity. The transmission power may be selected based on a target receive power and a path loss for the selected beam. In some cases, if the sum of the path loss for a beam direction and the target receive power exceeds a maximum transmission power by more than a predetermined amount, the random access signal will not be transmitted using that beam. In some cases, if a response to the random access is not received, a different beam direction may be selected, the transmission power may be increased, or both.
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公开(公告)号：CA3016716A1
公开(公告)日：2017-10-19
申请号：CA3016716
申请日：2017-04-03
Applicant: QUALCOMM INC
Inventor： ISLAM MUHAMMAD NAZMUL , LUO TAO , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , SADIQ BILAL , LI JUNYI
Abstract: One apparatus may be configured to detect a set of beams from a base station. The apparatus may be further configured to select a beam of the set of beams. The apparatus may be further configured to determine at least one resource based on the selected beam. The apparatus may be further configured to transmit, on the at least one determined resource, a beam adjustment request to the base station. The request may indicate an index associated with the selected beam. Another apparatus may be configured to transmit a first set of beams. The other apparatus may be further configured to receive a beam adjustment request on at least one resource. The other apparatus may be further configured to determine a beam index of a beam in the first set of beams based on the request and the at least one resource.
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公开(公告)号：CA3016574A1
公开(公告)日：2017-10-19
申请号：CA3016574
申请日：2017-03-31
Applicant: QUALCOMM INC
Inventor： ISLAM MUHAMMAD NAZMUL , LUO TAO , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , SADIQ BILAL , LI JUNYI
IPC: H04B7/0417 , H04B7/06
Abstract: A first apparatus may communicate with a user equipment through a first active beam. The first apparatus may determine that beam tracking is to be performed with the UE, including identifying a new beam for communication between the UE and the apparatus. The first apparatus may perform beam tracking with the UE based on the determination that beam tracking is to be performed. The first apparatus may communicate with the UE through a second active beam based on the beam tracking.
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公开(公告)号：CA3015078A1
公开(公告)日：2017-09-28
申请号：CA3015078
申请日：2017-02-27
Applicant: QUALCOMM INC
Inventor： SADIQ BILAL , LUO TAO , CEZANNE JUERGEN , ABEDINI NAVID , MUKKAVILLI KRISHNA KIRAN , ISLAM MUHAMMAD NAZMUL , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN
Abstract: Methods, systems, and devices for wireless communication are described. Some examples provide for identifying a primary synchronization signal (PSS) sequence of a synchronization subframe, determining, for the synchronization subframe, an extended synchronization signal (ESS) sequence based at least in part on the PSS sequence and transmitting the synchronization subframe. Other examples provide for generating an ESS sequence for a synchronization subframe to be communicated to a UE, scrambling the ESS sequence based at least in part on cell-specific information associated with the base station and transmitting, to the UE, the scrambled ESS sequence in the synchronization subframe.
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Patent Agency Ranking
公开(公告)号：AU2019227521B2
公开(公告)日：2022-12-08
申请号：AU2019227521
申请日：2019-02-22
Applicant: QUALCOMM INC
Inventor： SADIQ BILAL , CEZANNE JUERGEN , ISLAM MUHAMMAD NAZMUL , ABEDINI NAVID , WANG XIAO FENG , JOHN WILSON MAKESH PRAVIN , AKKARAKARAN SONY , MANOLAKOS ALEXANDROS
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a user equipment and/or a base station, may determine that an active transmit beam has changed from a first transmit beam to a second transmit beam, the second transmit beam being different from the first transmit beam. The wireless device may identify a reference signal identifier that is associated with the second transmit beam. The wireless device may update, based at least in part on the identifying, a channel state information (CSI) resource setting to include the reference signal identifier, wherein the CSI resource setting is associated with the active transmit beam.
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公开(公告)号：AU2017356141B2
公开(公告)日：2022-09-01
申请号：AU2017356141
申请日：2017-09-25
Applicant: QUALCOMM INC
Inventor： ABEDINI NAVID , SADIQ BILAL , SUBRAMANIAN SUNDAR , LI JUNYI , ISLAM MUHAMMAD NAZMUL , MAHARSHI ATUL , CEZANNE JUERGEN , SAMPATH ASHWIN
Abstract: Methods, systems, and devices for wireless communication are described that provide for the indication of communication information using a correlation between synchronization signals transmitted by a base station for cell acquisition. The communication information may include a physical channel timing parameter such as synchronization periodicity, a physical broadcast channel (PBCH) periodicity, a beam sweep periodicity, or a cyclic prefix (CP) type. Communication information may also indicate the presence of a physical broadcast channel (PBCH) transmission or a mobility reference signal (MRS) transmission. The correlation may be a phase shift between multiple signals or may be based on precoding matrices used during transmission processing of the synchronization signals across subcarriers and antenna ports.
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公开(公告)号：AU2017271955B9
公开(公告)日：2022-04-14
申请号：AU2017271955
申请日：2017-04-17
Applicant: QUALCOMM INC
Inventor： ISLAM MUHAMMAD NAZMUL , SADIQ BILAL , LUO TAO , SUBRAMANIAN SUNDAR , LI JUNYI
IPC: H04B7/0417 , H04B7/0452 , H04B7/06 , H04B7/08 , H04W74/08
Abstract: A UE may select a first beam for communication with a base station. The UE may attempt, through the selected first beam, at least one RACH procedure with the base station. The UE may determine that the at least one RACH procedure failed with the base station. The UE may send, after a successful RACH procedure with the base station, information indicating that the at least one RACH procedure failed. In an aspect, the UE may select a new beam for communication with the base station after the determination that the at least one RACH procedure failed, and at least a portion of the successful RACH procedure may be performed through the selected new beam.
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公开(公告)号：AU2017274385B8
公开(公告)日：2022-03-17
申请号：AU2017274385
申请日：2017-05-15
Applicant: QUALCOMM INC
Inventor： ABEDINI NAVID , SUBRAMANIAN SUNDAR , LI JUNYI , ISLAM MUHAMMAD NAZMUL , CEZANNE JUERGEN , SADIQ BILAL , LUO TAO
Abstract: Methods, systems, and devices for wireless communication are described. A wireless communications system operating in millimeter wave (mmW) spectrum may utilize synchronization signals for beam tracking. A synchronization signal (e.g., primary synchronization signals (PSS), secondary synchronization signals (SSS), etc.), beam reference signal, and/or control signal may be designed to facilitate beam tracking. A synchronization signal structure based on a repeated sequence in the time domain may facilitate searching for different beams in a timely manner. In some cases, the repeated synchronization signal structure may be achieved by using a larger tone spacing, and hence having shorter symbol duration and repeating the short symbols in the time domain. The repeated structure may be further used to encode additional information (e.g., facilitated by the resulting additional degrees of freedom). Additionally or alternatively, a synchronization signal (e.g., SSS) may be discrete Fourier transform (DFT) pre-coded to achieve better peak-to-average-power-ratio (PAPR).
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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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