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11.发明申请公开(公告)号：US20220029767A1
公开(公告)日：2022-01-27
申请号：US17498025
申请日：2021-10-11
Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
Inventor： Ralf Bendlin , Thomas Novlan , Xiaoyi Wang , Arunabha Ghosh
Abstract: Various embodiments disclosed herein provide for efficient configuration of demodulation reference signals in beamformed wireless communications systems. In an embodiment, the transmitter can signal the location of demodulation reference signals (DMRS) by including an indicator bit in downlink control information indicating which DMRS scheme is used in the transmission. A first DMRS scheme can let the user equipment (UE) device know that the DMRS position for the PDSCH carrying the RMSI is as signaled on the master information block (MIB)—referred to as PDSCH Mapping Type A. A second DMRS scheme can let the UE device know that the DMRS position for the PDSCH carrying the RMSI is the first orthogonal frequency division multiplexing (OFDM) symbol of said PDSCH allocation—referred to as PDSCH mapping type B).
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12.发明授权公开(公告)号：US11196532B2
公开(公告)日：2021-12-07
申请号：US16797010
申请日：2020-02-21
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Thomas Novlan , Ralf Bendlin , Arunabha Ghosh
Abstract: The described technology is generally directed towards using a frequency-separated band as a supplementary uplink band for a new radio downlink band that cannot operate as a time division duplex band and otherwise has no paired uplink band. The paired bands are separated in frequency, yet operate in the time division duplex mode. The supplementary uplink for New Radio facilitates coexistence with LTE in the frequency division duplex spectrum.
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公开(公告)号：US20210289479A1
公开(公告)日：2021-09-16
申请号：US17333951
申请日：2021-05-28
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Xiaoyi Wang , Ralf Bendlin , Arunabha Ghosh , Andrew Thornburg , Salam Akoum , Thomas Novlan , Milap Majmundar
Abstract: To increase network efficiency, a user equipment (UE) can be appointed as a local manager to coordinate the allocation of resources used by other UEs. For example, the network can promote the UE as a local manager and assign the local manager a resource pool. The local manager can then broadcast synchronization signals to let the other UEs associate themselves with the local manager. After the other UEs are synced with the local manager, the local manager can allocate resources to the other UEs. Based on report data regarding the local managers management procedures, the network can maintain the UE as the local manager or demote the UE from local manager status.
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公开(公告)号：US11088745B2
公开(公告)日：2021-08-10
申请号：US16543294
申请日：2019-08-16
Applicant: AT&T Intellectual Property I, L.P.
Inventor： SaiRamesh Nammi , Arunabha Ghosh , Ralf Bendlin
Abstract: The described technology is generally directed towards indicating to a receiver (e.g., a user equipment) which antenna ports are assigned for channel state information reference signals (CSI-RS). The indicator can be sent as radio resource control configuration data and/or by physical layer signaling such as in downlink control information. The receiver computes CSI based on the assigned antenna port or ports, and the reported (e.g., joint) CSI helps avoid mismatched joint CSI used for scheduling when multiple transmit and receive points (TRPs) are communicating with the user equipment.
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公开(公告)号：US11050530B2
公开(公告)日：2021-06-29
申请号：US16455123
申请日：2019-06-27
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Xiaoyi Wang , Salam Akoum , Ralf Bendlin
Abstract: According to an embodiment, a system can comprise a processor and a memory that can store executable instructions that, when executed by the processor, facilitate performance of operations. The operations can include generating a first signal in an initial domain and transforming the first signal into a first portion of a time-frequency grid of a time-frequency domain, resulting in a transformed first signal. The operations further include combining the transformed first signal with a second signal of a second portion of the time-frequency grid, resulting in a combined signal, and transmitting the combined signal to a user equipment device for a further transformation. The operations further include receiving a response signal from the user equipment device that was configured, based on the further transformed first signal.
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Patent Agency Ranking
公开(公告)号：US20210168892A1
公开(公告)日：2021-06-03
申请号：US17173676
申请日：2021-02-11
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Salam Akoum , Ralf Bendlin , Xiaoyi Wang , Thomas Novlan , Arunabha Ghosh
Abstract: The disclosed subject matter provides techniques for detecting and correcting radio link failures based on the different usage scenarios. In one embodiment, a device is provided that comprises a processor, and a memory that stores executable instructions that, when executed by the processor, facilitate performance of various operations. These operations can comprise monitoring a quality of a radio link established between the device and a network device of a wireless communication network based on downlink transmissions received from the network device. These operations can further comprise determining whether the quality indicates the device and the network device are out-of-sync based on the quality being below a defined quality level, wherein the defined quality level varies based on a usage scenario associated with usage of the radio link by the device.
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公开(公告)号：US20210099328A1
公开(公告)日：2021-04-01
申请号：US16587784
申请日：2019-09-30
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Arunabha Ghosh , Ralf Bendlin , Saeed Ghassemzadeh , Thomas Novlan , Salam Akoum , SaiRamesh Nammi , Xiaoyi Wang
Abstract: An example method may include a processing system of a base station having a processor selecting a blank resource of a time and frequency resource grid of the base station for a transmission of a channel sounding waveform and transmitting the channel sounding waveform via the blank resource. Another example method may include a processing system of a channel sounding receiver receiving at a location, from a base station, a channel sounding waveform via a blank resource of a time and frequency resource grid of the base station, and measuring a channel property at the location based upon the channel sounding waveform.
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公开(公告)号：US10952273B2
公开(公告)日：2021-03-16
申请号：US15674488
申请日：2017-08-10
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Salam Akoum , Ralf Bendlin , Xiaoyi Wang , Thomas Novlan , Arunabha Ghosh
Abstract: The disclosed subject matter provides techniques for detecting and correcting radio link failures based on the different usage scenarios. In one embodiment, a device is provided that comprises a processor, and a memory that stores executable instructions that, when executed by the processor, facilitate performance of various operations. These operations can comprise monitoring a quality of a radio link established between the device and a network device of a wireless communication network based on downlink transmissions received from the network device. These operations can further comprise determining whether the quality indicates the device and the network device are out-of-sync based on the quality being below a defined quality level, wherein the defined quality level varies based on a usage scenario associated with usage of the radio link by the device.
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公开(公告)号：US20210076197A1
公开(公告)日：2021-03-11
申请号：US17061033
申请日：2020-10-01
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Thomas Novlan , Ralf Bendlin , Arunabha Ghosh , Xiaoyi Wang
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.
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公开(公告)号：US20210051612A1
公开(公告)日：2021-02-18
申请号：US16543305
申请日：2019-08-16
Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
Inventor： Ralf Bendlin , Aditya Chopra , Thomas Novlan , Milap Majmundar
Abstract: The described technology is generally directed towards over the air synchronization of network nodes. In general, the techniques disclosed herein can be implemented by a first base station node device and a second base station node device. A wireless backhaul connection between the base station node devices allows the first base station node device to connect to a core network via the second base station node device. The techniques disclosed herein can be implemented as a protocol including communications back and forth between the base station node devices, which enables measurement of communication delays such as propagation delays and processing delays. The base station node devices can then use the measured communication delays to better synchronize clocks used to time radio frequency transmissions.
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