-
公开(公告)号：US20200296649A1
公开(公告)日：2020-09-17
申请号：US16814563
申请日：2020-03-10
Applicant: Airspan Networks Inc.
Inventor： Krzysztof DUDZINSKI , Andrew LOGOTHETIS , Marlon Peter PERSAUD , Ashvtosh GOEL , Venkateswarlu KATEPALLI
Abstract: An apparatus and method are provided for performing a handover analysis. The apparatus comprises base station location identifying circuitry to obtain base station location information for a plurality of base stations that provide a wireless network for communication with a moving vehicle. In addition, moving vehicle tracking circuitry is provided to obtain position and velocity information for the moving vehicle. Handover metrics computation circuitry is then used to generate at least one handover metric computed from the position and velocity information for the moving vehicle and the base station location information, for use in determining a target base station in said plurality to be used when performing a handover procedure to transition communication with the moving vehicle from the current base station in said plurality to the target base station. By such an approach, this enables a variety of handover metrics to be generated that take into account the deployment of the wireless network, which can be useful in systems such as Air to Ground (ATG) systems where the moving vehicles have a relatively high velocity, and the base stations may be relatively far apart. Such an approach can enhance the algorithms used to evaluate the decision to trigger handover from one base station to another base station.
-
公开(公告)号：US20210100067A1
公开(公告)日：2021-04-01
申请号：US17121335
申请日：2020-12-14
Applicant: AIRSPAN NETWORKS INC.
Inventor： Andrew LOGOTHETIS , Stuart Parrott , Michael David Livingstone , Qasim Khan
Abstract: An apparatus and method are provided for configuring a communication link. The apparatus has a plurality of antenna elements to support RF communication over a communication link using a plurality of frequency channels, a plurality of RF processing circuits, and configuration circuitry to apply a selected configuration from a plurality of different configurations, where each configuration identifies which RF processing circuit each antenna element is coupled to, and which frequency channel is allocated to each RF processing circuit. The configuration circuitry is arranged to employ a reinforcement learning process in order to dynamically alter which of the plurality of different configurations to apply as a currently selected configuration. The reinforcement learning process comprises maintaining a future rewards record having a plurality of entries, where each entry maintains, for an associated combination of link state and configuration, an estimated future rewards indication determined using a discounted rewards mechanism. A selection policy is employed to select a configuration for a current link state, and then a new reward is observed that is dependent on how the selected configuration alters a chosen performance metric for the communication link. The estimated future rewards indication in the associated entry is then updated in dependence on the new reward. The updating comprises, when the associated entry is first encountered following a reset event, the storing in the associated entry of a predicted estimated future rewards indication generated by assuming, when using the discounted rewards mechanism, that all rewards that will be used in future to update the estimated future rewards indication in the associated entry will have the same value as the new reward.
-
公开(公告)号：US20210028841A1
公开(公告)日：2021-01-28
申请号：US17070764
申请日：2020-10-14
Applicant: AIRSPAN NETWORKS INC.
Inventor： Andrew LOGOTHETIS , Marlon Peter PERSAUD
Abstract: A technique is provided for controlling a beam pattern employed by an antenna apparatus. The antenna apparatus comprises an antenna array, and beamforming circuitry to employ a beam pattern in order to generate a beam using the antenna array to facilitate wireless communication with at least one further antenna apparatus. Beam pattern adjustment circuitry is then arranged to receive a control signal indicative of a motion being imparted to the antenna apparatus, and to adjust the beam pattern to be used by the beamforming circuitry in dependence on the control signal, so as to alter a width of the beam in order to mitigate variation in link quality of the wireless communication due to the motion. This hence allows the width of the beam deployed by the antenna apparatus to be adjusted taking into account motion being imparted to the antenna apparatus, so that a balance can be achieved between employing a narrow beam to seek to improve range and resilience to interference, and a wider beam to reduce the variation in link quality that might otherwise arise due to the motion.
-
公开(公告)号：US20200328939A1
公开(公告)日：2020-10-15
申请号：US16828821
申请日：2020-03-24
Applicant: AIRSPAN NETWORKS INC.
Inventor： Marlon Peter PERSAUD , Andrew LOGOTHETIS , Krzysztof DUDZINSKI , Venkateswarlu KATEPALLI , Ashvtosh GOEL
Abstract: There is provided a network comprising antenna circuitry to receive incoming signals and transmit outgoing signals. Remote modem circuitry, connected to the antenna circuitry by analog cabling, demodulates a first incoming signal of the incoming signals to produce first incoming data and control circuitry, remote from the remote modem circuitry and connected to the remote modem circuitry via digital cabling, controls a behaviour of the remote modem circuitry and receives the first incoming data from the remote modem circuitry.
-
公开(公告)号：US20200296774A1
公开(公告)日：2020-09-17
申请号：US16814546
申请日：2020-03-10
Applicant: Airspan Networks Inc.
Inventor： Andrew LOGOTHETIS , Marlon Peter PERSAUD
Abstract: A mechanism is provided for performing timing adjustment within a wireless communication system for a moving vehicle. The wireless communication system has an antenna system for communicating with a further antenna system, and communication control circuitry for performing a sign-on procedure to seek to establish a communication link with the further antenna system. During the sign-on procedure, the communication control circuitry issues via the antenna system a connection setup signal for receipt by the further antenna within an identified timing window. The wireless communication system also has location specifying circuitry for identifying a current location of the wireless communication system, and distance computation circuitry for obtaining location information specifying a location of the further antenna system, and for determining a separation distance between the antenna. system and the further antenna system. The communication control circuitry is arranged to issue the connection setup signal at a default time unless the separation distance exceeds a setup threshold distance that indicates that use of the default time would prevent the connection setup signal being received within the identified timing window. In that event, the control circuitry instead applies a timing advance in order to issue the connection setup signal prior to the default time so as to cause the connection setup signal to be received by the further antenna system within the identified timing window. This facilitates successful establishment of a communication link even in situations where the separation distance between the antenna system and the further antenna system exceeds that supported by modern telecommunications Standards.
-
Patent Agency Ranking
公开(公告)号：US20200328801A1
公开(公告)日：2020-10-15
申请号：US16836711
申请日：2020-03-31
Applicant: AIRSPAN NETWORKS INC.
Inventor： Krzysztof DUDZINSKI , Marlon Peter PERSAUD , Andrew LOGOTHETIS , Venkateswarlu KATEPALLI , Ashvtosh GOEL
Abstract: Methods and apparatuses for configuring the zone served by a base station providing wireless communication for a plurality of user equipment located in moving vehicles are disclosed. Motion reports are received from the user equipment, indicating a current location, a current direction of motion, and a current speed of the moving vehicles. The motion reports are received from at least one of: user equipment currently using the base station for wireless communication; user equipment currently within the zone served by the base station, but not using the base station for wireless communication; and/or user equipment currently using at least one neighbouring base station to the base station for wireless communication. A configuration for the zone served by the base station is then determined, based on the motion reports and on locations of the base station and of the at least one neighbouring base station. The configuration for the zone served by the base station is then applied to the base station.
-
公开(公告)号：US20200296710A1
公开(公告)日：2020-09-17
申请号：US16814553
申请日：2020-03-10
Applicant: Airspan Networks Inc.
Inventor： Andrew LOGOTHETIS , Marlon Peter PERSAUD
Abstract: A wireless communication system for a moving vehicle, and a method of operation of a wireless communication system for a moving vehicle, are described. The wireless communication system comprises an antenna system configured to receive a received signal from a further antenna system and to transmit a transmitted signal to the further antenna system, communication control circuitry to control operation of the antenna system, and analysis circuitry. The analysis circuitry is configured to obtain at least one item of information from the received signal, and perform a Doppler adjustment process to determine, based on the at least one item of information, an adjusted transmitted frequency (ft) to be used for transmission of the transmitted signal from the antenna system, such that an observed frequency of the transmitted signal at the further antenna system is a predetermined uplink frequency (fUL).
-
公开(公告)号：US20190393601A1
公开(公告)日：2019-12-26
申请号：US16443138
申请日：2019-06-17
Applicant: AIRSPAN NETWORKS INC.
Inventor： Andrew LOGOTHETIS , Marlon Peter PERSAUD
Abstract: A technique is provided for controlling a beam pattern employed by an antenna apparatus. The antenna apparatus comprises an antenna array, and beamforming circuitry to employ a beam pattern in order to generate a beam using the antenna array to facilitate wireless communication with at least one further antenna apparatus. Beam pattern adjustment circuitry is then arranged to receive a control signal indicative of a motion being imparted to the antenna apparatus, and to adjust the beam pattern to be used by the beamforming circuitry in dependence on the control signal, so as to alter a width of the beam in order to mitigate variation in link quality of the wireless communication due to the motion. This hence allows the width of the beam deployed by the antenna apparatus to be adjusted taking into account motion being imparted to the antenna apparatus, so that a balance can be achieved between employing a narrow beam to seek to improve range and resilience to interference, and a wider beam to reduce the variation in link quality that might otherwise arise due to the motion.
-
公开(公告)号：US20190312349A1
公开(公告)日：2019-10-10
申请号：US16373953
申请日：2019-04-03
Applicant: AIRSPAN NETWORKS INC.
Inventor： Andrew LOGOTHETIS , David Charles BROKENSHIRE
IPC: H01Q3/06
Abstract: The present technique provides an antenna apparatus and a method of operating an antenna apparatus comprising a first antenna array and a second antenna array. Antenna positioning circuitry is used to move the first antenna array relative to the second antenna array about a common axis of rotation to facilitate positioning of the first and second antenna arrays in a chosen deployment configuration between a first limit and a second limit. Antenna array control circuitry is used to coordinate operation of the first antenna array and the second antenna array dependent on the chosen deployment configuration.
-
公开(公告)号：US20150304130A1
公开(公告)日：2015-10-22
申请号：US14355829
申请日：2014-03-17
Applicant: Andrew LOGOTHETIS , Martin LYSEJKO , AIRSPAN NETWORKS INC.
Inventor： Andrew LOGOTHETIS , Martin LYSEJKO
CPC classification number: H04L25/024 , H04L1/0003 , H04L1/0006 , H04L1/0009 , H04L1/0015 , H04L1/203 , H04L5/0048 , H04L25/0226
Abstract: A method and system are provided for determining modulation control information and a reference signal design to be used by a transmitter node when generating a transmit signal to transmit from a transmitter (logical antenna) of the transmitter node over a channel of a wireless link to a recipient node. The modulation control information is used by the transmitter node to convert source data into an information bearing signal, and the information bearing signal is combined with a reference signal conforming to the reference signal design in order to produce the transmit signal. The method comprises (a) selecting a candidate reference signal design from a plurality of candidate reference signal designs, (b) determining channel state information for the channel, (c) determining, from the channel state information, signal to noise ratio information for said channel, and (d) for each of a plurality of candidate modulation control information, using the signal to noise ratio information to determine a quality indication for said channel. Steps (a) to (d) are then repeated for each candidate reference signal design in said plurality. Thereafter a winning quality indication is selected from the determined quality indications, and the combination of candidate reference signal design and candidate modulation control information associated with the winning quality indication is then output to the transmitting node. By such an approach, quality indications can be established for each combination of possible reference signal design and possible modulation control information, and hence not only is the inherent channel estimation accuracy achievable using each possible reference signal design considered, but also the data transmission efficiency and robustness to channel effects of each possible modulation control information is also taken into account.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.032 seconds)
