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公开(公告)号：US12250039B1
公开(公告)日：2025-03-11
申请号：US18802443
申请日：2024-08-13
Applicant: Nokia Solutions and Networks Oy
Inventor： Bala Venkata Ramulu Gorantla , Suresh Kalyanasundaram , Shalini Gulati
Abstract: An apparatus for a communication system, the apparatus comprising at least one processor, and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to: determine a first measurement of first reference signals associated with a first analog beam used to receive the first reference signals, determine a second measurement of second reference signals associated with a second analog beam used to receive the second reference signals, determine first information characterizing a digital beamformer based on the first measurement and the second measurement.
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公开(公告)号：US11985009B2
公开(公告)日：2024-05-14
申请号：US18238132
申请日：2023-08-25
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Richa Gupta , Suresh Kalyanasundaram
IPC: H04L5/12 , H04B7/0456 , H04L25/02
CPC classification number: H04L25/021 , H04B7/0456
Abstract: A method includes estimating an uplink channel for a terminal device, based on an amount of antennas used by an access node for transmitting signals to the terminal device, antennas used for receiving the transmitted signals at the terminal device, and sub-bands used for transmitting the signals. Based on the estimation, a channel covariance matrix is determined for a precoder comprised in a transmitter of the access node by determining a limited number of elements of a full dimensional channel covariance matrix, which is different than the channel covariance matrix. The limited number of elements are elements corresponding to i-th row and j-th column of the channel covariance. Correlation computation is performed for the limited number of elements. Elements of the full-dimensional channel covariance matrix that are excluded from the limited number of elements are determined and set to be zero. Precoding is performed using the determined channel covariance matrix.
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公开(公告)号：US11477710B2
公开(公告)日：2022-10-18
申请号：US16652834
申请日：2017-10-20
Applicant: Nokia Solutions and Networks Oy
Inventor： Liang Xing , Richa Gupta , Suresh Kalyanasundaram
Abstract: Methods and apparatus for realizing dynamic point selection improve the cell-edge throughput and geometric mean of release 8/9 UEs. The method comprises a step of receiving estimated channel quality reported by all the TPs in the CoMP set, a step of switching the serving TP for the UEs based on the estimated channel quality and/or cell load, a step of forwarding the scheduled data from the primary TP to the serving TP, a step of separately transmitting PDCCH to the UEs by the primary TP and transmitting PDSCH to the UEs by the serving TP. the implementation of the method and apparatus improves the cell-edge throughput and geometric mean of UE throughput by serving UEs instantaneously from the cell that provides better throughput accounting for fast time-scale channel fluctuations and/or load. It helps in reducing interference due to data getting drained faster when users are served from cells with better channel conditions.
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公开(公告)号：US11425591B1
公开(公告)日：2022-08-23
申请号：US17590326
申请日：2022-02-01
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Lorenzo Maggi , Deepak Kumar Nayak , Suresh Kalyanasundaram
Abstract: A solution for allocating N radio beam configurations to access nodes including, in some embodiments, a method comprising storing a beam library defining a set of radio beam configurations for a coverage area. A coverage area is divided into sub-areas, and a set of channel quality metrics is collected, as is a traffic density parameter for each sub-area. The following steps are performed: selecting N radio beam configurations from the set of radio beam configurations; mapping each sub-area with one of the selected N radio beam configurations; computing a service performance for the selected N radio beam configurations; the service performance is weighted by the traffic density parameters. The service performance are stored as linked to each radio beam configuration of the selected N radio beam configurations. Based on the stored service performances, a set of N radio beam configurations is selected and the N radio beam configurations are allocated.
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公开(公告)号：US11246138B2
公开(公告)日：2022-02-08
申请号：US16342687
申请日：2017-04-12
Applicant: Nokia Solutions and Networks Oy
Inventor： Richa Gupta , Suresh Kalyanasundaram
Abstract: Methods and Systems are disclosed for allocating a time-frequency resource of a large cell base station either to a selected first user equipment associated with the base station, or to a selected self-backhaul link associated with a small cell within the coverage area of the large cell base station. In embodiments, data is provided representing target allocation proportions of the time-frequency resource, for each of the first user equipment(s) and the one or more backhaul link(s). Allocations are made, for each of a series of time units or intervals, either to a selected first user equipment or backhaul link based on the target data.
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Patent Agency Ranking
公开(公告)号：US11218909B2
公开(公告)日：2022-01-04
申请号：US16762875
申请日：2017-11-16
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Sheshachalam B S , Rajeev Agrawal , Suresh Kalyanasundaram
Abstract: This document discloses a solution for selecting a transmission direction in a cell. A method comprises: determining, by a controller associated with a cell of a cellular communication system, a traffic asymmetry metric for the cell, the traffic asymmetry metric representing asymmetry between uplink and downlink traffic in the cell; comparing, by the controller, the traffic asymmetry metric with a threshold; upon determining, by the controller on the basis of the comparison, that the traffic asymmetry metric is one of greater and lower than the threshold, selecting a first transmission direction for a time interval; upon determining, by the controller on the basis of the comparison, that the traffic asymmetry metric is the other one of greater and lower than the threshold, selecting for the time interval a second transmission direction different from the first transmission direction, wherein the second transmission direction is a nominal transmission direction determined as common to a cell cluster comprising the cell and a set of neighboring cells, and wherein the controller determines the nominal transmission direction on the basis of traffic condition metrics acquired for the cell and for the set of neighboring cells; and causing data communication to the selected transmission direction in the cell during the time interval.
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公开(公告)号：US10568159B2
公开(公告)日：2020-02-18
申请号：US15738053
申请日：2016-06-20
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Sheshachalam Bangalore Satyanarayana , Tsunehiko Chiba , Suresh Kalyanasundaram , Masatoshi Nakamata , Claudio Rosa , Takeshi Tanaka
Abstract: There is provided a communicating, at a first network access point, with a core network entity using a user plane protocol, said communicating comprising receiving user data from the core network entity on a first bearer, the first bearer capable of being split with a second network access point such that at least some of the user data is provided to the second network access point, the first network access point and the second network access point configured to communicate wirelessly with a plurality of user equipments, and wherein the first network access point does not communicate with the core network using a control plane protocol associated with the first bearer.
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公开(公告)号：US20190254037A1
公开(公告)日：2019-08-15
申请号：US16343397
申请日：2017-08-02
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Richa Gupta , Suresh Kalyanasundaram
IPC: H04W72/04
Abstract: A technique is provided for allocating resources in a wireless network that includes one or more macro user devices served by a macro base station associated with a macro cell and a micro base station associated with a small cell that is served by the macro base station, including determining a portion of downlink resources allocated to a self-backhaul link between the macro base station and the micro base station for the small cell, determining that a threshold condition is exceeded with respect to the self-backhaul link for the small cell, and decreasing, based on the determining, the portion of downlink resources allocated to the self-backhaul link for the small cell.
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公开(公告)号：US11843426B2
公开(公告)日：2023-12-12
申请号：US18103597
申请日：2023-01-31
Applicant: Nokia Solutions and Networks Oy
Inventor： Richa Gupta , Suresh Kalyanasundaram , Deepak Kumar Nayak , Rakshak Agrawal , Shalini Gulati
IPC: H04L1/02 , H04B17/345 , H04B7/0452
CPC classification number: H04B17/345 , H04B7/0452
Abstract: An apparatus including: a MIMO antenna for transmitting beamformed signals on a plurality of beams using a common frequency- and time-limited physical channel resource; circuitry for computing a beamforming gain of each beam in each sub-sector in a coverage area of said plurality of beams; circuitry for determining a beam dominance region of each beam within the coverage area of said plurality of beams; circuitry for determining, within the dominance region of each beam, an average of the beamforming gain of each of the other beams at least partially co-locating within said beam dominance region; circuitry for determining inter-beam interference estimations as an average interference of each beam from each of said other beams; and circuitry for scheduling transmissions of the beams by said MIMO antenna on said common frequency- and time-limited physical channel resource based on said inter-beam interference estimations.
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公开(公告)号：US11778565B2
公开(公告)日：2023-10-03
申请号：US17545306
申请日：2021-12-08
Applicant: Nokia Solutions and Networks Oy
Inventor： Lorenzo Maggi , Alvaro Valcarce Rial , Jakob Hoydis , Richa Gupta , Suresh Kalyanasundaram , Veronique Capdevielle
CPC classification number: H04W52/10 , H04W52/225
Abstract: Disclosed is a method for determining open loop power control parameters. A first set of key performance indicators associated with a first set of open loop power control parameters is obtained from one or more first base stations. A statistical model is determined based at least partly on the first set of key performance indicators and the first set of open loop power control parameters. A second set of open loop power control parameters is determined based at least partly on the statistical model.
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