公开(公告)号：US10764901B2

公开(公告)日：2020-09-01

申请号：US16343397

申请日：2017-08-02

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Richa Gupta ,  Suresh Kalyanasundaram

IPC: H04W72/00 ,  H04W72/04 ,  H04L5/00 ,  H04W88/14 ,  H04W28/02

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.

公开(公告)号：US11956766B2

公开(公告)日：2024-04-09

申请号：US18118373

申请日：2023-03-07

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Muhammad Ayyaz Qureshi ,  Martin Steiert ,  Tilman Felgentreff ,  Suresh Kalyanasundaram ,  Jinesh P. Nair ,  Shalini Gulati

IPC: H04W72/044 ,  H04W16/28 ,  H04W72/52

CPC classification number: H04W72/046 ,  H04W72/52 ,  H04W16/28

Abstract: A method comprises selecting a beam to be scheduled for a slot that is upcoming, and selecting a terminal device to be scheduled in the selected beam. Selection of the terminal device is based on the terminal device considering the selected beam as its best beam. Physical resource blocks are allocated to the terminal device, and a beam configuration to be used for the selected beam is chosen based in part on user traffic and load distribution. A switching event is triggered. The switching event comprises producing the chosen beam configuration by providing a beamforming command and using a control line controlling a switch network comprised in phase shifters to steer the beam. The phase shifters are comprised in a radio frequency front-end unit comprising a plurality of antenna columns. The phase shifters are placed in front of selected antenna sub-arrays comprised in the plurality of antenna columns.

公开(公告)号：US11956105B2

公开(公告)日：2024-04-09

申请号：US17793698

申请日：2020-01-22

Applicant: Nokia Solutions and Networks Oy

Inventor： Chandrashekhar Thejaswi ,  Suresh Kalyanasundaram ,  Karthik Kuntikana Shrikrishna ,  Francis Dominique ,  Lele Shen

IPC: H04L27/06 ,  H04L25/03

CPC classification number: H04L25/03305

Abstract: Embodiments of the present disclosure relate to a method, an apparatus and a computer readable storage medium for generating soft-decision information for a receiver. In example embodiments, a method is provided. The method includes receiving, at a first device, a signal from a second device, the signal corresponding to a group of symbols transmitted from the second device; determining, by performing Lattice Reduction linear detection on the signal, a first group of estimated symbols for the group of symbols; determining, by performing iterative interference cancellation on the first group of estimated symbols, a second group of estimated symbols for the group of symbols; and generating, based on the second group of estimated symbols, soft-decision information about the group of symbols for use by a decoder at the first device. Embodiments of the present disclosure can improve the receiver performance with reduced complexity.

公开(公告)号：US11902034B2

公开(公告)日：2024-02-13

申请号：US18106598

申请日：2023-02-07

Applicant: Nokia Solutions and Networks Oy

Inventor： Suresh Kalyanasundaram ,  Shalini Gulati

IPC: H04L1/20 ,  H04B17/336 ,  H04L1/00 ,  H04W24/08

CPC classification number: H04L1/203 ,  H04B17/336 ,  H04L1/0026 ,  H04W24/08

Abstract: Various example embodiments may relate to link adaptation. An apparatus may determine a first signal quality estimate for a signal. The apparatus may further determine a BLER estimate based on acknowledgements or decoding results for data blocks of the signal. The apparatus may further determine a second signal quality estimate for the signal based on the BLER estimate. The apparatus may further determine a signal quality offset based on a difference between the first signal quality estimate and the second signal quality estimate. The apparatus may further determine transmission parameter(s) for at least one subsequent data block based on the first signal quality estimate and the signal quality offset.

公开(公告)号：US20230254056A1

公开(公告)日：2023-08-10

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: H04B17/345 ,  H04B7/0452

CPC classification number: H04B17/345 ,  H04B7/0452

Abstract: An apparatus comprising: a MIMO antenna for transmitting beamformed signals on a plurality of beams using a common frequency- and time-limited physical channel resource; means for computing a beamforming gain of each beam in each sub-sector in a coverage area of said plurality of beams; means for determining a beam dominance region of each beam within the coverage area of said plurality of beams; means 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; means for determining inter-beam interference estimations as an average interference of each beam from each of said other beams; and means 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.

公开(公告)号：US11463961B2

公开(公告)日：2022-10-04

申请号：US17605398

申请日：2020-05-15

Applicant: Nokia Solutions and Networks Oy

Inventor： Richa Gupta ,  Suresh Kalyanasundaram

IPC: H04W52/00 ,  H04W52/14 ,  H04W52/28 ,  H04W52/24

Abstract: According to an aspect, there is provided a computing device for controlling terminal device uplink transmission power. Each terminal device is configured to determine uplink transmission power based on two power control parameters—a target received power for full pathloss compensation and a pathloss compensation coefficient. The computing device initializes a deep Q-learning network in which a state is defined as cell-specific pairs of the power control parameters, an action is defined as a selection of valid values of power control parameters for a cell and a reward is calculated based on the information on data traffic. The computing device trains the deep Q-learning network to approximate a Q value function, determines optimal power control parameters based on thereon and causes transmitting them to access nodes.

公开(公告)号：US11411600B2

公开(公告)日：2022-08-09

申请号：US17291456

申请日：2019-10-21

Applicant: Nokia Solutions and Networks Oy

Inventor： Chandrashekhar Thejaswi ,  Suresh Kalyanasundaram ,  Rajeev Agrawal ,  Francis Dominique ,  Karthik Kuntikana Shrikrishna

IPC: H04B1/71 ,  H04B1/7105 ,  H04B1/7107 ,  H04B7/0452 ,  H04W72/04

Abstract: An apparatus is disclosed, comprising means for identifying a plurality of user equipment (UE), each transmitting one or more uplink packets for decoding at a base station associated with a given cell of a radio network. The apparatus further comprises means for clustering the identified user equipment into joint processing groups, each joint processing group comprising the identities of two or more user equipment as clustered and means for performing, in a first processing stage, joint processing of the uplink data streams for identified user equipment within common joint processing groups using one or more first processing algorithms to produce corresponding first processed uplink data streams. The apparatus further discloses means for performing one or more subsequent processing stages on the first processed uplink data streams, subsequent to the joint processing, to produce decoded uplink data streams, the one or more subsequent processing stages using one or more second processing algorithms, different from the first processing algorithm.

公开(公告)号：US20220191798A1

公开(公告)日：2022-06-16

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

IPC: H04W52/10 ,  H04W52/22

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.

公开(公告)号：US11012133B2

公开(公告)日：2021-05-18

申请号：US17018615

申请日：2020-09-11

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Veronique Capdevielle ,  Afef Feki ,  Deepak Kumar Nayak ,  Claudiu Mihailescu ,  Nidham Ben Rached ,  Suresh Kalyanasundaram

IPC: H04B7/06 ,  H04W24/02 ,  G01S5/02 ,  H04B17/318

Abstract: In some embodiments, a computing system maintains, in a memory, information on one or more terminal devices, a dictionary of beams and information on a spatial grid. The computing system maps each terminal device to the spatial grid based on up-to-date results of radio measurements and calculates, for each spatial element, a load caused by the one or more terminal devices based on the mapping. The computing system evaluates, for each combination of a beam and a terminal device, a reference signal received power, RSRP, based on results of the radio measurements. The computing system calculates a first map of expected spatial distribution of traffic based on the calculated loads and beam-specific second maps of expected RSRP based on the values of the RSRP. Finally, the computing system causes performing beamforming optimization based on the first map and second maps.

公开(公告)号：US09986474B2

公开(公告)日：2018-05-29

申请号：US14881251

申请日：2015-10-13

Applicant: Nokia Solutions and Networks Oy

Inventor： Richa Gupta ,  Balamurali Natarajan ,  Suresh Kalyanasundaram

IPC: H04W24/00 ,  H04W36/00 ,  H04L5/00

CPC classification number: H04W36/0083 ,  H04L5/00

Abstract: Apparatuses, methods, computer programs, computer program products and computer-readable media regarding connection establishment robustness optimization are disclosed. Some example versions include calculating, at a base station, a switching metric for a user equipment served by the base station, the switching metric indicating whether the user equipment is to switch from a source cell to one of multiple target cells. The switching metric is calculated for a combination of the user equipment with a source cell and one of the multiple target cells. The base station determines whether to switch the user equipment from the source cell to one of the multiple target cells based on the switching metric, which includes spectral efficiencies of the user equipment for both the source cell and one of the multiple target cells, current cell load values for both the source cell and one of the multiple target cells and a correction factor.