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    CHANNEL SOUNDING USING CARRIER AGGREGATION
    91.
    发明申请
    CHANNEL SOUNDING USING CARRIER AGGREGATION 审中-公开

    公开(公告)号：US20200162174A1

    公开(公告)日：2020-05-21

    申请号：US16773581

    申请日：2020-01-27

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Aditya Chopra ,  Saeed Ghassemzadeh ,  Arunabha Ghosh ,  Ralf Bendlin ,  Salam Akoum ,  SaiRamesh Nammi ,  Thomas Novlan ,  Xiaoyi Wang

    IPC: H04B17/309 ,  H04B17/318 ,  H04B17/391

    Abstract: An example method may include a processing system of a channel sounding receiver having a processor receiving from a base station, at a location, a channel sounding waveform via a plurality of carriers, sampling the channel sounding waveform via the plurality of carriers to generate a plurality of per-carrier time domain sample sets, and processing the plurality of per-carrier time domain sample sets via a plurality of discrete Fourier transform modules to provide a plurality of per-carrier frequency domain sample sets. The method may further include the processing system aligning the plurality of per-carrier frequency domain sample sets in gain and phase to provide a combined frequency domain sample set and measuring a channel property at the location based upon the combined frequency domain sample set.

    HYBRID AUTOMATIC REPEAT REQUEST AND SCHEDULING FOR WIRELESS CELLULAR SYSTEMS WITH LOCAL TRAFFIC MANAGERS
    92.
    发明申请
    HYBRID AUTOMATIC REPEAT REQUEST AND SCHEDULING FOR WIRELESS CELLULAR SYSTEMS WITH LOCAL TRAFFIC MANAGERS 审中-公开

    公开(公告)号：US20200052829A1

    公开(公告)日：2020-02-13

    申请号：US16366254

    申请日：2019-03-27

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Ralf Bendlin ,  Xiaoyi Wang ,  Andrew Thornburg ,  Thomas Novlan

    IPC: H04L1/18 ,  H04L1/16 ,  H04W72/04 ,  H04W76/11 ,  H04W76/14

    Abstract: The disclosed subject matter is directed towards scheduling and Hybrid Automatic Repeat Request (HARQ) operations by which nodes in a three party communication system can communicate. To schedule a data transmission from a transmitter node to receiver node(s), a local manager/scheduler node sends common downlink control information to the transmitter and receiver nodes. Via a scheduling request, the transmitting node can request the scheduling of the data transmission by the local manager node. The technology facilitates unicast and broadcast/multicast data transmissions; for a unicast data transmission, the scheduling request identifies the receiving node. The transmitting node can explicitly acknowledge reception of the downlink control information to the local manager node, or the local manager node can detect the data transmission, when it occurs, as an implicit acknowledgment that the common downlink control information was successfully received.

    POWER CONTROL ENHANCEMENTS FOR MULTI-HOP INTEGRATED ACCESS AND BACKHAUL
    93.
    发明申请
    POWER CONTROL ENHANCEMENTS FOR MULTI-HOP INTEGRATED ACCESS AND BACKHAUL 审中-公开

    公开(公告)号：US20200045645A1

    公开(公告)日：2020-02-06

    申请号：US16052975

    申请日：2018-08-02

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Aditya Chopra ,  Arunabha Ghosh ,  Thomas Novlan ,  Andrew Thornburg ,  Xiaoyi Wang ,  Ralf Bendlin

    IPC: H04W52/22 ,  H04W52/08 ,  H04W52/46

    Abstract: Various embodiments disclosed herein provide for power control system in a multi-hop integrated access and backhaul network. In a multi-hop integrated access and backhaul network a donor node can communicate with user equipment devices and relay nodes that have varying power levels, and to avoid receiving uplink transmissions with varying power levels which can impact automatic gain control systems and lower overall throughput, the power control system disclosed herein can manage the power levels of the relay node in order to reduce the difference in power levels. In one embodiment, the power control system can schedule relay node devices to transmit uplink transmissions alongside UE devices that have a high signal strength. In another embodiment, the power control system can schedule relay nodes and UE devices to separate symbols within a time slot. In another embodiment, the power control system can perform closed loop power control management at the relay node to reduce the power level for the uplink transmission.

    WIRELESS COMMUNICATION FRAMEWORK FOR MULTIPLE USER EQUIPMENT
    94.
    发明申请
    WIRELESS COMMUNICATION FRAMEWORK FOR MULTIPLE USER EQUIPMENT 审中-公开

    公开(公告)号：US20190380142A1

    公开(公告)日：2019-12-12

    申请号：US16004811

    申请日：2018-06-11

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Xiaoyi Wang ,  Arunabha Ghosh ,  Andrew Thornburg ,  Thomas Novlan ,  Ralf Bendlin ,  Milap Majmundar

    IPC: H04W72/12 ,  H04W4/06

    Abstract: The described technology is generally directed towards operating a user equipment node as a scheduler user equipment (e.g., which can be a local manager of other nodes in a group). The scheduler user equipment receives a scheduling request for the scheduling of the resources for transmission of data by a transmitter user equipment, and based on the traffic type requested, schedules the transmitter user equipment and receiver user equipment(s) with scheduling data/allocated radio resources. The transmitter user equipment can directly transmit to the receiver user equipment(s) on the allocated radio resources, e.g., without further involvement of the scheduler user equipment/local manager. For cellular data, the scheduler user equipment can schedule the transmitter user equipment to transmit to the scheduler user equipment as a receiver node.

    FACILITATING AN ENHANCED TWO-STAGE DOWNLINK CONTROL CHANNEL IN A WIRELESS COMMUNICATION SYSTEM
    95.
    发明申请
    FACILITATING AN ENHANCED TWO-STAGE DOWNLINK CONTROL CHANNEL IN A WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20190261256A1

    公开(公告)日：2019-08-22

    申请号：US16401101

    申请日：2019-05-01

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Xiaoyi Wang ,  SaiRamesh Nammi ,  Thomas Novlan ,  Salam Akoum ,  Arunabha Ghosh

    IPC: H04W48/12 ,  H04L5/00

    Abstract: A two-stage enhanced downlink control channel (DCI) is provided. In one example, a method comprises performing processing to attempt to decode a second stage of DCI without blind decoding and based on resource allocation information (RAI), wherein the decoding the first stage of DCI comprises blind decoding and wherein the second stage of DCI and uplink control information is received after the first stage of DCI. The method also comprises based on successfully decoding the second stage of DCI, decoding a physical data shared channel (PDSCH). In various embodiments in which semi-persistent scheduling is provided, decoding information previously received in a prior transmission time interval can be employed in a current or subsequent TTI to conserve bandwidth and power.

    INITIAL ACCESS CONFIGURATION FOR COEXISTENCE OF MULTIPLE WIRELESS COMMUNICATION SYSTEMS
    98.
    发明申请
    INITIAL ACCESS CONFIGURATION FOR COEXISTENCE OF MULTIPLE WIRELESS COMMUNICATION SYSTEMS 审中-公开

    公开(公告)号：US20180367985A1

    公开(公告)日：2018-12-20

    申请号：US15625787

    申请日：2017-06-16

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Thomas Novlan ,  Ralf Bendlin ,  Arunabha Ghosh ,  Xiaoyi Wang

    IPC: H04W8/22 ,  H04W48/16 ,  H04W56/00

    CPC classification number: H04W8/22 ,  H04W16/14 ,  H04W48/16 ,  H04W56/0005 ,  H04W72/048 ,  H04W88/06

    Abstract: Systems and techniques and machine-readable storage media for initial access configuration for coexistence of multiple wireless communication systems are provided. In one embodiment, a method comprises: determining, by a base station device comprising a processor, a capability of a mobile device configured to operate according to a first communication protocol; and selecting, by the base station device, a numerology of numerologies for transmission of information from the base station device in a subframe of a frame, wherein the frame is associated with communications in accordance with the first communication protocol, wherein the selecting is based on the capability, wherein the numerologies are distinct combinations of frequency subcarrier spacing for synchronization signal blocks and placement locations of the synchronization signal blocks, and wherein the synchronization signal blocks are provided for initial access to a second communication protocol.

    SUB-BAND SELECTION AT CELLULAR BASE STATION FOR NON-OVERLAPPED OR PARTIALLY OVERLAPPED FULL DUPLEX OPERATION
    99.
    发明申请
    SUB-BAND SELECTION AT CELLULAR BASE STATION FOR NON-OVERLAPPED OR PARTIALLY OVERLAPPED FULL DUPLEX OPERATION 有权

    公开(公告)号：US20250097854A1

    公开(公告)日：2025-03-20

    申请号：US18965248

    申请日：2024-12-02

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Aditya Chopra ,  Salam Akoum ,  Thomas Novlan

    IPC: H04W52/24 ,  H04L5/00 ,  H04L5/14 ,  H04W72/0446 ,  H04W72/541

    Abstract: Aspects of the subject disclosure may include, for example, determining a self-interference channel response of a transceiver of a mobile base station having a transmitter and a receiver. The self-interference channel response spans multiple sub-bands of a predetermined mobile cellular frequency channel. A first sub-band of the multiple sub-bands is identified according to the self-interference channel response and, an estimate is determined, at the receiver, of a first coupled transmit power level of the transmitter when operating within the first sub-band. A receiver sensitivity is adjusted according to the first coupled transmit power level to obtain an adjustment adapted to increase receiver sensitivity, while restricting operation of the receiver to a substantially linear region. The adjustment allows a transmission within the first sub-band and a reception within a second sub-band of the plurality of sub-bands to occur simultaneously at the mobile base station. Other embodiments are disclosed.

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