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公开(公告)号：ES2784874T3
公开(公告)日：2020-10-01
申请号：ES15750156
申请日：2015-07-13
Applicant: QUALCOMM INC
Inventor： RYU JUNG , SUBRAMANIAN SUNDAR , LI JUNYI , SAMPATH ASHWIN
Abstract: Un procedimiento para la comunicación inalámbrica, que comprende: identificar (1005) una pluralidad de características correspondientes a una pluralidad respectiva de pares de direcciones de conformación de haz de transmisión/recepción de un canal de comunicación inalámbrica, en el que al menos una característica de la pluralidad de características comprende un ancho de haz de transmisión o recepción; y conmutar dinámicamente (1010) entre esquemas de acceso múltiple inalámbrico para su uso en la comunicación en el canal de comunicación inalámbrica basándose, al menos en parte, en la pluralidad de características identificadas, los esquemas de acceso múltiple inalámbrico que comprenden acceso múltiple por división ortogonal de frecuencia, OFDMA y acceso múltiple por división de frecuencia de portadora única, SC-FDMA, en el que cada uno de la pluralidad de pares de direcciones de conformación de haz de transmisión/recepción comprende una dirección de conformación de haz de transmisión relativa a una orientación de un transmisor en el que una señal de haz conformada se propaga desde el transmisor y también una dirección de conformación de haz de recepción relativa a una orientación de un receptor en el que se recibe la señal de haz conformada.
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22.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：SG11202004123WA
公开(公告)日：2020-07-29
申请号：SG11202004123W
申请日：2018-12-11
Applicant: QUALCOMM INC
Inventor： BAI TIANYANG , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , LI JUNYI
IPC: H04L27/26
Abstract: Methods, systems, and devices for wireless communications are described for phase error estimation and correction with sub-symbol resolution. A transmitting device may precode symbols (e.g., phase tracking reference signal (PT-RS) symbols) using a discrete Fourier transform (DFT). The transmitting device may map the DFT-precoded symbols to sets of adjacent subcarriers of a wireless signal, and may map other symbols to other subcarriers of the wireless signal. A receiving device may receive the wireless signal and may compare time domain representations of the DFT-precoded symbols with time domain representations of known reference symbols. The receiving device may estimate a phase error with sub-symbol resolution in the time domain based at least in part on the comparison, and may apply a phase correction in either the time or frequency domain to the other symbols.
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24.发明专利
公开(公告)号：SG11202002919PA
公开(公告)日：2020-05-28
申请号：SG11202002919P
申请日：2018-10-09
Applicant: QUALCOMM INC
Inventor： SUBRAMANIAN SUNDAR , ISLAM MUHAMMAD NAZMUL , LUO JIANGHONG , SAMPATH ASHWIN , LI JUNYI , CEZANNE JUERGEN , SADIQ BILAL , ABEDINI NAVID
Abstract: When a first node is subject to a maximum permissible exposure (MPE) condition, it may be beneficial for the first node to signal, to a second node, an uplink beam to be used for communications and/or one or more properties of the uplink beam. For example, the first node may signal a downlink beam, from a first reciprocal beam pair, and an uplink beam, from a second reciprocal beam pair, to be used for communications, and/or may signal one or more properties of the uplink beam and/or the downlink beam. Additionally, or alternatively, the second node may transmit, to the first node, a signaling state (e.g., a transmission configuration indication (TCI) state) that indicates properties to be used to configure an uplink beam and/or a downlink beam. In this way, the first node and the second node may configure beams in a manner that accounts for MPE limitations.
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公开(公告)号：SG11202002412TA
公开(公告)日：2020-05-28
申请号：SG11202002412T
申请日：2018-11-02
Applicant: QUALCOMM INC
Inventor： ABEDINI NAVID , WANG XIAO FENG , SADIQ BILAL , SUBRAMANIAN SUNDAR , ISLAM MUHAMMAD NAZMUL
Abstract: Techniques are provided for power control in directional beam environments. A user equipment (UE) may determine one or more power parameters on a beam-by-beam basis. Each directional uplink transmission beam in a communication link between the UE and the base station may be independently controlled using these beam-specific power parameters. Examples of these beam-specific power parameters may include a maximum output power for a given directional uplink transmission beam and a difference between the maximum output power for the given directional uplink transmission beam and an estimated transmit power for the given directional uplink transmission beam. The UE may report one or more of these beam-specific power parameters to a base station using a beam-specific report.
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Patent Agency Ranking
公开(公告)号：AU2017237727B2
公开(公告)日：2020-01-23
申请号：AU2017237727
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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公开(公告)号：AU2015318364B2
公开(公告)日：2019-06-06
申请号：AU2015318364
申请日：2015-08-24
Applicant: QUALCOMM INC
Inventor： EL AYACH OMAR , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
Abstract: Methods, systems, and devices are described for directional synchronization signal signals in a millimeter wave communication system. A user equipment (UE) may receive a narrowband signal component of a synchronization signal for the millimeter wave communications. The narrowband signal component may include correlation information. The UE may use the correlation information to identify a wideband signal component of the synchronization signal for the millimeter wave communications. The UE may search frequencies associated with a first frequency location determined from the correlation information to identify and detect the wideband signal component of the synchronization signal.
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公开(公告)号：CA3079261A1
公开(公告)日：2019-05-23
申请号：CA3079261
申请日：2018-11-16
Applicant: QUALCOMM INC
Inventor： SUBRAMANIAN SUNDAR , WANG XIAO FENG , CEZANNE JUERGEN , SADIQ BILAL , ISLAM MUHAMMAD NAZMUL , LI JUNYI
Abstract: Methods, systems, and devices for wireless communications are described that provide for signaling and switching of beam pair links (BPLs) for directional transmission beams between a base station and a user equipment (UE). A threshold value may be determined, which corresponds to an amount of time for a UE to receive and decode control information, and apply a different BPL than a current BPL that that is in use. The UE may maintain a BPL for data, which is used during data transmission time intervals (TTIs) until an indication is received to change the BPL for data. The UE and the base station may determine to change between BPLs based at least in part on the threshold value and a scheduling offset between a control channel transmission that allocates resources for a data TTI and a start of the data TTI.
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公开(公告)号：CA3074471A1
公开(公告)日：2019-04-18
申请号：CA3074471
申请日：2018-09-19
Applicant: QUALCOMM INC
Inventor： SUBRAMANIAN SUNDAR , CEZANNE JUERGEN , SADIQ BILAL , ISLAM MUHAMMAD NAZMUL , ABEDINI NAVID , LI JUNYI
Abstract: Wireless communication techniques that include beam training performed to aid mobile devices in identifying beams for use in communications (e.g., uplink communications) are discussed. A mobile device may transmit to a base station an indication of a level of beamforming reciprocity of the mobile device. A base station/gNB may transmit an indication of one or more transmission beams to be used by the mobile device for uplink wireless communication based on the level of beamforming reciprocity. The one or more transmission beams to be used by the mobile device for uplink communication may include a reciprocal transmission beam. A mobile device not capable of full beamforming reciprocity may determine a transmission beam through uplink beam training. A mobile device may transmit to a base station information using at least one of the one or more transmission beams. Other aspects and features are also claimed and discussed.
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公开(公告)号：SG11201900376XA
公开(公告)日：2019-03-28
申请号：SG11201900376X
申请日：2017-06-30
Applicant: QUALCOMM INC
Inventor： AKKARAKARAN SONY , LUO TAO , LI WENJUN , MAHARSHI ATUL , SUBRAMANIAN SUNDAR
Abstract: Wireless communications systems and methods related to allocating resource blocks and resource block groups in a system band in order to reduce overhead associated with resource allocation. To reduce overhead, the wireless communication device communicates a signal in a control channel that indicates a general area and a resource block in the general area that stores data. The wireless communication device then communicates multiple resource blocks that include the resource block and communicates the data in the resource block using the signal. To reduce overhead, the wireless communication device also communicates multiple mappings for each resource block group into a set of resource blocks and a signal in a control channel that selects one of the multiple mappings. The communication device then determines resource blocks that are included in the resource block group according to the mapping, and communicates data in these resource blocks.
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