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公开(公告)号：US11456906B2
公开(公告)日：2022-09-27
申请号：US16991609
申请日：2020-08-12
Applicant: QUALCOMM Incorporated
Inventor： Renqiu Wang , Hao Xu , Wanshi Chen , Peter Gaal , Tingfang Ji , John Edward Smee
Abstract: Certain aspects of the present disclosure provide techniques for transmitting and processing reference signals, such as DMRS, that may account for mobility characteristics (e.g., that relate to a Doppler measurement) of a wireless node (e.g., a UE), such as Doppler measurements indicating how fast such a device is moving.
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公开(公告)号：US11425623B2
公开(公告)日：2022-08-23
申请号：US16681219
申请日：2019-11-12
Applicant: QUALCOMM Incorporated
Inventor： Keiichi Kubota , Tingfang Ji , Tao Luo , Gavin Bernard Horn , John Edward Smee , Ravi Agarwal , Joseph Binamira Soriaga , Saurabha Rangrao Tavildar
Abstract: Aspects of the present disclosure provide methods and apparatus for beam selection in uplink-based and downlink-based mobility scenarios, for example, for new radio (NR) systems which can improve handover reliability, reduce handover frequency, and improve power efficiency. Certain aspects provide a method for wireless communications by a user equipment (UE). The method generally includes transmitting an uplink reference signal with an indication of a preferred downlink beam and receiving a downlink transmission based, at least in part, on the uplink reference signal.
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公开(公告)号：US11374711B2
公开(公告)日：2022-06-28
申请号：US16538548
申请日：2019-08-12
Applicant: QUALCOMM INCORPORATED
Inventor： Joseph Binamira Soriaga , Jing Jiang , Krishna Kiran Mukkavilli , Pavan Kumar Vitthaladevuni , Naga Bhushan , Tingfang Ji , John Edward Smee
IPC: H04L5/00 , H04B7/0452 , H04B7/06
Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal (SRS) to the base station. The base station characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. As part of applying the channel information, the base station forms the beam to the UE based on the uplink channel information obtained from the SRS. The UE may include an array of antennas, each UE transmitting a different SRS that the base station receives and uses to characterize the downlink. Multiple UEs (or a single UE with multiple antennas) transmit SRS at the same time and frequency allocation (non-orthogonal), but with each sending its own unique SRS. Further, multiple UEs (or a single UE with multiple antennas) may send their SRS at unique time/frequency allocations (orthogonal).
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184.发明授权公开(公告)号：US10939322B2
公开(公告)日：2021-03-02
申请号：US16538685
申请日：2019-08-12
Applicant: QUALCOMM Incorporated
Inventor： Seyong Park , Wanshi Chen , Hao Xu , Wei Zeng , Renqiu Wang , Peter Gaal , Tingfang Ji , John Edward Smee
Abstract: Signaling strategies for an advanced receiver with interference cancellation (IC) and suppression is discussed. Upon enablement of an advanced interference cancellation procedure according to the disclosure, transmitters within the enabled area transmit according to transmission restriction configurations that provide transmission limits based on either frequency, time, or scheduling. The restrictions on the transmitters reduces the complexity of processing by neighboring advanced receivers for cancellation of interference from the restricted transmitters. At the advanced receiver, transmission information, such as scheduling, reference signal (RS), resource block (RB) allocation, and the like, may either be determined through blind detection or received directly through signaling. The advanced receiver may use this transmission information associated with each interfering signal to detect, decode, and subtract the interfering signals from the received transmissions.
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公开(公告)号：US10931420B2
公开(公告)日：2021-02-23
申请号：US16526478
申请日：2019-07-30
Applicant: QUALCOMM Incorporated
Inventor： Jing Jiang , Joseph Binamira Soriaga , Krishna Kiran Mukkavilli , Tingfang Ji , Huilin Xu , Naga Bhushan , Raghuraman Krishnamoorthi , Peter Pui Lok Ang , John Edward Smee
IPC: H04L5/00 , H04W72/04 , H04L27/26 , H04L25/02 , H04L12/801
Abstract: Systems and techniques are disclosed to reduce pilot overhead by providing common reference signals coded with cover codes that are orthogonal in time and frequency domains. Common reference signals that are coded by cover codes orthogonal in both domains can be de-spread in both the time and frequency domains for improved resolution and larger pull-in windows for both. Also disclosed is semi-uniform pilot spacing in both the frequency and time domains. In a time domain, a first pilot symbol pair is spaced by a first time interval from each other and a second pilot symbol pair is spaced by a second time interval from the first pair, the second interval being greater than the first. In a frequency domain, a first set of pilot symbols is densely placed in a selected frequency band and a second set of pilot symbols is sparsely placed surrounding and including the selected frequency band.
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Patent Agency Ranking
公开(公告)号：US10887869B2
公开(公告)日：2021-01-05
申请号：US16271280
申请日：2019-02-08
Applicant: QUALCOMM Incorporated
Inventor： Omar El Ayach , Sundar Subramanian , John Edward Smee , Ashwin Sampath , Junyi Li
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a discovery signal transmitted from a connection point (CP) via a directional beam. The discovery signal may include first information (including beam sweep configuration information) related to the CP. The apparatus then transmits an association signal to the CP based on the beam sweep configuration information and monitors for a resource grant from the CP based on the transmitted association signal. Alternatively, the apparatus transmits a discovery signal via a directional beam to a user equipment (UE). The discovery signal may include first information (including beam sweep configuration information) related to the apparatus. The apparatus then receives an association signal from the UE based on the beam sweep configuration information and determines a resource grant for communicating with the UE based on the received association signal.
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公开(公告)号：US10728215B2
公开(公告)日：2020-07-28
申请号：US16143387
申请日：2018-09-26
Applicant: QUALCOMM Incorporated
Inventor： Naga Bhushan , John Edward Smee , Joseph Binamira Soriaga , Krishna Kiran Mukkavilli , Tingfang Ji
Abstract: Various aspects of the present disclosure provide for methods, apparatus, and computer software for enabling a single media access control (MAC) layer to control a variety of physical (PHY) layers or entities for multiplexing signals corresponding to each of the PHY layers over an air interface. Here, the MAC layer may include a resource manager configured to determine a time-frequency resource allocation within the air interface for communication with one or more subordinate entities utilizing each of the PHY layers. In this way, The MAC entity may provide dynamic control over the allocation of time-frequency resources within a given resource group, which may include transmission time intervals (TTIs) having multiple time scales.
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公开(公告)号：US10721693B2
公开(公告)日：2020-07-21
申请号：US16129654
申请日：2018-09-12
Applicant: QUALCOMM Incorporated
Inventor： Durga Prasad Malladi , Tingfang Ji , John Edward Smee
IPC: H04W52/24 , H04W76/27 , H04W36/30 , H04W52/38 , H04W36/00 , H04W52/14 , H04W72/04 , H04W56/00 , H04W36/08 , H04W74/08
Abstract: Methods, systems, and devices for wireless communications are described, in which for one or more aspects of a first transmission of a first radio access technology (RAT) (e.g., a 5G or New Radio (NR) RAT) are determined based on transmissions of a second RAT (e.g., a 4G or Long Term Evolution (LTE) RAT). A user equipment (UE) may, in some cases, determine a reference timing, a reference power, or combinations thereof for an uplink transmission of the first RAT based on a received power or reference timing of the second RAT. In some cases, handover for the first RAT may be based at least in part on an handover in the second RAT.
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公开(公告)号：US20200169927A1
公开(公告)日：2020-05-28
申请号：US16777785
申请日：2020-01-30
Applicant: QUALCOMM Incorporated
Inventor： Keiichi Kubota , Tingfang Ji , Naga Bhushan , Gavin Bernard Horn , John Edward Smee , Joseph Binamira Soriaga , Wei Zeng
IPC: H04W36/00 , H04W48/12 , H04B7/0413 , H04L12/18
Abstract: A wireless network may provide system information by either a fixed periodic broadcast or broad-beam transmission or in response to a request by a user equipment (UE). The wireless network may broadcast (or broad-beam transmit) a signal that indicates to the UEs within a cell or zone coverage area that system information is to be transmitted on a fixed periodic schedule or in response to a request sent by one or more UEs.
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公开(公告)号：US10595237B2
公开(公告)日：2020-03-17
申请号：US16035495
申请日：2018-07-13
Applicant: QUALCOMM Incorporated
Inventor： Tingfang Ji , John Edward Smee , Naga Bhushan
Abstract: Systems, methods, apparatuses, and computer-program products for performing carrier aggregation across different radio access technologies are disclosed. For example, in some instances a method of wireless communication includes transmitting, using a first wireless communication device, control information to a second wireless communication device via a first radio access technology (RAT), the control information including control information for a second RAT; and receiving, at the first wireless communication device, an acknowledgement (ACK) or negative acknowledgement (NACK) from the second wireless communication device via the first RAT, the ACK or NACK being related to communications of the second wireless communication device conducted via the second RAT.
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