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公开(公告)号：US20230198813A1
公开(公告)日：2023-06-22
申请号：US18166354
申请日：2023-02-08
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Ernest Tsui , Weihua Ye
IPC: H04L25/02 , H04L5/14 , H04B7/06 , H04B17/318 , H04B17/336 , H04B7/0452 , G06N20/00 , H04B7/0426 , H04B7/0456 , H04W24/02 , H04W72/044 , H04W84/04 , H04L5/00 , H04B7/08 , H01Q3/26 , H04B7/0417 , H04B17/309 , H04L43/0888 , H04L43/16 , H04W52/14 , H04W52/26 , H04W16/28 , H04W24/08 , H04B17/12 , H04W72/12 , H04W72/23 , H04W72/51 , H04W72/541 , H04W72/566
CPC classification number: H04L25/0222 , H04L25/0226 , H04L5/1469 , H04B7/0639 , H04B7/0634 , H04B17/318 , H04B17/336 , H04B7/0452 , H04B7/0617 , H04L5/14 , G06N20/00 , H04B7/0426 , H04B7/0456 , H04W24/02 , H04W72/0473 , H04W84/04 , H04B7/043 , H04B7/0695 , H04L5/0023 , H04L5/0048 , H04L25/0202 , H04B7/0645 , H04B7/088 , H01Q3/2617 , H04L5/1461 , H04B7/0417 , H04B17/309 , H04L43/0888 , H04L43/16 , H04W52/143 , H04W52/267 , H04B7/0632 , H04W16/28 , H04W24/08 , H04B17/12 , H01Q3/267 , H01Q3/2694 , H04B7/0469 , H04B7/0473 , H04L5/0051 , H04L5/0073 , H04W72/12 , H04W72/23 , H04W72/51 , H04W72/541 , H04W72/569 , H04J11/0023
Abstract: Aspects of the subject disclosure may include, for example, determining a coherence block for each user equipment (UE) of a plurality of UEs being served by the first cell, resulting in a plurality of coherence blocks, responsive to the determining, identifying a smallest coherence block from the plurality of coherence blocks, identifying a pilot sequence length based on the smallest coherence block, determining a plurality of orthogonal pilot sequences based on the identifying the pilot sequence length, designating, from the plurality of orthogonal pilot sequences, a first group of orthogonal pilot sequences for use in the first cell, and distributing, to each neighboring cell of a plurality of neighboring cells adjacent to the first cell, a respective group of orthogonal pilot sequences from a remainder of the plurality of orthogonal pilot sequences, to prevent pilot contamination between the first cell and the plurality of neighboring cells. Other embodiments are disclosed.
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公开(公告)号：US11246042B2
公开(公告)日：2022-02-08
申请号：US16744914
申请日：2020-01-16
Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
Inventor： Ernest Tsui , Guanying Ru , Rennie Archibald , Weihua Ye
IPC: H04W24/02 , H04B17/373 , H04W16/28 , H04W24/08
Abstract: The described technology is generally directed towards jointly optimizing coverage, capacity, and layer balance in a wireless communications network while maintaining cell edge use device performance constraints. Aspects comprise monitoring edge user devices for performance information, and modifying the network based on the performance information, including jointly optimizing by changing antenna parameter data, layer balancing, handover biasing per cell neighbor pair, modifying scheduling priorities, and optimizing sector face harmonic throughput. Balancing uplink and downlink coverages are considered in the joint optimization. Further, interference is detected, predicted (as needed) and mitigated.
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公开(公告)号：US10819763B2
公开(公告)日：2020-10-27
申请号：US15475682
申请日：2017-03-31
Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
Inventor： Zhengye Liu , Zuxian Guo , Dhruv Gupta , Xiaojun Tang , Jin Wang , Weihua Ye , Yongdong Zhao
IPC: H04L29/06 , H04L12/825 , H04W28/14 , H04L12/853 , H04L12/835
Abstract: Aspects of the subject disclosure may include, for example, a system that provides for obtaining, by a server comprising a processor, network parameter data from an eNodeB of a wireless network. The server can determine a predicted bandwidth for a group of end user devices in a coverage area of the eNodeB according to the network parameter data. The server can receive, from an end user device of the group of end user devices, a request for the predicted bandwidth. The server can provide the predicted bandwidth to the end user device. The providing of the predicted bandwidth enables the end user device to provide a video chunk request to a content server that is based on a selected chunk delivery schedule and facilitates streaming of video content to the end user device from the content server. Other embodiments are disclosed.
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公开(公告)号：US20190158131A1
公开(公告)日：2019-05-23
申请号：US16237922
申请日：2019-01-02
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Ernest Tsui , Paul Maxwell , Weihua Ye
Abstract: A passive intermodulation detection system is provided to remotely identify passive intermodulation at a base station site and diagnose the type of intermodulation and location of the non-linearity that is the source of the passive intermodulation. A passive intermodulation cancelation system can generate an equivalent signal to a received interference signal and use the equivalent signal to generate an error signal. The error signal can then be used to reinforce a learning system and converge on a steady state of the interference signal to cancel other interference signals.
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公开(公告)号：US10187098B1
公开(公告)日：2019-01-22
申请号：US15640382
申请日：2017-06-30
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Ernest Tsui , Paul Maxwell , Weihua Ye
Abstract: A passive intermodulation detection system is provided to remotely identify passive intermodulation at a base station site and diagnose the type of intermodulation and location of the non-linearity that is the source of the passive intermodulation. A passive intermodulation cancelation system can generate an equivalent signal to a received interference signal and use the equivalent signal to generate an error signal. The error signal can then be used to reinforce a learning system and converge on a steady state of the interference signal to cancel other interference signals.
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Patent Agency Ranking
6.发明授权公开(公告)号：US09848279B2
公开(公告)日：2017-12-19
申请号：US14851596
申请日：2015-09-11
Applicant: AT&T Intellectual Property I, L.P. , AT&T Mobility II LLC
Inventor： Zhi Cui , Weihua Ye , Yung Shirley Choi-Grogan
Abstract: Concepts and technologies disclosed herein are directed to user equipment (“UE”) categories for machine-to-machine (“M2M”) devices operating in an Internet of things (“IoT”) network and future emerging devices. According to one aspect, a network node can receive, from an M2M device, an M2M device category for the M2M device. The network node can determine an action to perform based upon the M2M device category. The network node can cause the action to be performed.
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公开(公告)号：US11962438B2
公开(公告)日：2024-04-16
申请号：US18166354
申请日：2023-02-08
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Ernest Tsui , Weihua Ye
IPC: H04L25/02 , G06N20/00 , H01Q3/26 , H04B7/0417 , H04B7/0426 , H04B7/0452 , H04B7/0456 , H04B7/06 , H04B7/08 , H04B17/12 , H04B17/309 , H04B17/318 , H04B17/336 , H04L5/00 , H04L5/14 , H04L43/0888 , H04L43/16 , H04W16/28 , H04W24/02 , H04W24/08 , H04W52/14 , H04W52/26 , H04W72/044 , H04W72/12 , H04W72/23 , H04W72/51 , H04W72/541 , H04W72/566 , H04W84/04 , H04J11/00
CPC classification number: H04L25/0222 , G06N20/00 , H01Q3/2617 , H01Q3/267 , H01Q3/2694 , H04B7/0417 , H04B7/0426 , H04B7/043 , H04B7/0452 , H04B7/0456 , H04B7/0469 , H04B7/0473 , H04B7/0617 , H04B7/0632 , H04B7/0634 , H04B7/0639 , H04B7/0645 , H04B7/0695 , H04B7/088 , H04B17/12 , H04B17/309 , H04B17/318 , H04B17/336 , H04L5/0023 , H04L5/0048 , H04L5/0051 , H04L5/0073 , H04L5/14 , H04L5/1461 , H04L5/1469 , H04L25/0202 , H04L25/0226 , H04L43/0888 , H04L43/16 , H04W16/28 , H04W24/02 , H04W24/08 , H04W52/143 , H04W52/267 , H04W72/0473 , H04W72/12 , H04W72/23 , H04W72/51 , H04W72/541 , H04W72/569 , H04W84/04 , H04J11/0023
Abstract: Aspects of the subject disclosure may include, for example, determining a coherence block for each user equipment (UE) of a plurality of UEs being served by the first cell, resulting in a plurality of coherence blocks, responsive to the determining, identifying a smallest coherence block from the plurality of coherence blocks, identifying a pilot sequence length based on the smallest coherence block, determining a plurality of orthogonal pilot sequences based on the identifying the pilot sequence length, designating, from the plurality of orthogonal pilot sequences, a first group of orthogonal pilot sequences for use in the first cell, and distributing, to each neighboring cell of a plurality of neighboring cells adjacent to the first cell, a respective group of orthogonal pilot sequences from a remainder of the plurality of orthogonal pilot sequences, to prevent pilot contamination between the first cell and the plurality of neighboring cells. Other embodiments are disclosed.
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公开(公告)号：US20220149888A1
公开(公告)日：2022-05-12
申请号：US17092032
申请日：2020-11-06
Applicant: AT&T Intellectual Property I, L.P. , AT&T Mobility II LLC
Inventor： Ernest Tsui , Michael Taylor , Weihua Ye , Young Suh , Paul Maxwell , Guanying Ru , James Hollister
Abstract: Embodiments for port reconfiguration for passive intermodulation interference mitigation are presented herein. A base station device comprises a signal processing component comprising a passive intermodulation interference component and an antenna configuration component. The passive intermodulation interference component determines passive intermodulation interference corresponding to uplink signals that have been received, via a configurable cellular antenna array of the base station device, from respective wireless devices of a group of wireless devices that have been communicatively coupled to the base station device. The antenna configuration component selects a defined configuration of a group of cellular antenna ports of the configurable cellular antenna array to facilitate a reduction of the passive intermodulation interference corresponding to the uplink signals.
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公开(公告)号：US20220038230A1
公开(公告)日：2022-02-03
申请号：US16944725
申请日：2020-07-31
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Ernest Tsui , Brian Gavin , Paul Maxwell , Weihua Ye
Abstract: A system includes a base band unit pooling component that determines, via a base band unit pool of base station devices, respective uplink channel estimates of an uplink channel wirelessly coupling, using frequency division duplexing via respective modular antenna elements, a user equipment to the base band unit pool. A downlink channel estimation component of the system derives, based on the respective uplink channel estimates, a downlink channel estimate of a downlink channel wirelessly coupling, using the frequency division duplexing via a portion of the respective modular antenna elements corresponding to a base station device of the base band unit pool, the base station device to the user equipment. In turn, the system generates, using the downlink channel estimate, a group of downlink sector beams to be transmitted to the user equipment using the downlink channel via the portion of the respective modular antenna elements.
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公开(公告)号：US20210266247A1
公开(公告)日：2021-08-26
申请号：US17314552
申请日：2021-05-07
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Rajarajan Sivaraj , Varun Gupta , Dhruv Gupta , Rittwik Jana , Jin Wang , Laurie Bigler , Weihua Ye , Zhengye Liu
Abstract: The described technology is generally directed towards reducing latency in a wireless communications network. Radio access network latency data corresponding to a measured latency impact criterion is obtained by a network device of a wireless network. Based on the radio access network latency data, latency guidance data usable by the radio network device to achieve a reduction in communication latency that is experienced by a user equipment is predicted, e.g., by a learned model. The latency guidance data can be used to facilitate a reduction in the communication latency that is experienced by a user equipment.
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