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公开(公告)号：US11350320B2
公开(公告)日：2022-05-31
申请号：US16988786
申请日：2020-08-10
Applicant: Nokia Solutions and Networks Oy
Inventor： Srinivasan Selvaganapathy , Krzysztof Kordybach , Ahmad Awada , Jedrzej Stanczak , Subramanya Chandrashekar , Ingo Viering
Abstract: According to an example aspect of the present invention, there is provided a method comprising, determining, by a source base station, a first target cell and a second target cell for a handover of a user equipment, wherein the first target cell and the second target cell are cells of the same target base station, setting, by the source base station, an identifier of a first handover preparation procedure and an identifier of a second handover preparation procedure, wherein the identifier of the first handover preparation procedure is different compared to the identifier of the second handover preparation procedure, initializing, by the source base station, the first handover preparation procedure to the first target cell and the second handover preparation procedure to the second target cell and binding, by the source base station, the identifier of the first handover preparation procedure and the identifier of the second handover preparation procedure.
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公开(公告)号：US20210051569A1
公开(公告)日：2021-02-18
申请号：US16935281
申请日：2020-07-22
Applicant: Nokia Solutions and Networks Oy
Inventor： Andres Arjona , Subramanya Chandrashekar , Dawid Koziol
Abstract: In a first method, a gNB-DU indicates, to a second node, a capability information element for generating information related to Other-System Information (OSI); receives an acknowledge indication from the second node; and generates system information broadcast information to at least one user equipment. In a second method, a gNB-CU receives, from a first node, a capability information element for generating information related to Other-System Information (OSI); and transmits an acknowledge indication to the first node.
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公开(公告)号：US10536917B2
公开(公告)日：2020-01-14
申请号：US15548463
申请日：2015-02-03
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Devaki Chandramouli , Subramanya Chandrashekar , Hans Thomas Hoehne , Cinzia Sartori , Woonhee Hwang , Amaanat Ali
Abstract: There are provided measures for improvements in dual connectivity for different access networks. Such measures exemplarily comprise providing control in a control plane for a terminal (UE) for access to a first access network (5G), wherein a coverage of the first access network (5G) at least partly overlaps a coverage of a second access network (4G), the terminal is capable of having access to the first access network (5G) and to the second access network (4G) in parallel, and access for the terminal to a respective access network (4G, 5G) is routed in a user plane via a respective distinct access network entity (eNB, SGAP) and to a respective (compatible) gateway (S-GW, uGW).
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公开(公告)号：US10440623B2
公开(公告)日：2019-10-08
申请号：US15501468
申请日：2014-08-08
Applicant: Nokia Solutions and Networks Oy
Inventor： Subramanya Chandrashekar , Hans Thomas Hoehne , Dario Serafino Tonesi , Krzysztof Kordybach , Mika Forssell
Abstract: The present invention provides apparatuses, methods, computer programs, computer program products and computer-readable media regarding radio access network (RAN) controlled access of user equipment (UE) to wireless communication networks. The method includes receiving, at a base station or controller of a cellular communication network, a request to offload traffic to a wireless communication network from an access point of the wireless communication network regarding user equipment served by the base station or controller, determining, at the base station or controller, whether to permit the user equipment to offload traffic to the wireless communication network, and transmitting a message indicating whether it is permitted to offload traffic to the access point of the wireless communication network.
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公开(公告)号：US10405243B2
公开(公告)日：2019-09-03
申请号：US15758315
申请日：2015-09-16
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Subramanya Chandrashekar
Abstract: There are provided measures for enabling/realizing decoupling of the control plane and the user plane in a radio access network. Such measures exemplarily comprise respective entities which are operable in a radio access network of a communication system and their respective operations, wherein a control/user plane entity provides control/user plane functionality in the radio access network for controlling control/user plane connectivity of at least one terminal to the core network of the communication system via the radio access network, and establish/provide a control/user plane connection to at least one user/control plane apparatus configured to provide user/control plane functionality in the radio access network for realizing user/control connectivity of the at least one terminal to the core network of the communication system via the radio access network.
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Patent Agency Ranking
公开(公告)号：US20180249381A1
公开(公告)日：2018-08-30
申请号：US15758315
申请日：2015-09-16
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Subramanya Chandrashekar
CPC classification number: H04W36/0011 , H04W36/08 , H04W72/042 , H04W72/0453 , H04W72/1215 , H04W72/1289 , H04W74/006 , H04W76/10 , H04W84/042
Abstract: There are provided measures for enabling/realizing decoupling of the control plane and the user plane in a radio access network. Such measures exemplarily comprise respective entities which are operable in a radio access network of a communication system and their respective operations, wherein a control/user plane entity provides control/user plane functionality in the radio access network for controlling control/user plane connectivity of at least one terminal to the core network of the communication system via the radio access network, and establish/provide a control/user plane connection to at least one user/control plane apparatus configured to provide user/control plane functionality in the radio access network for realizing user/control connectivity of the at least one terminal to the core network of the communication system via the radio access network.
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公开(公告)号：US20210051535A1
公开(公告)日：2021-02-18
申请号：US16988786
申请日：2020-08-10
Applicant: Nokia Solutions and Networks Oy
Inventor： Srinivasan Selvaganapathy , Krzysztof Kordybach , Ahmad Awada , Jedrzej Stanczak , Subramanya Chandrashekar , Ingo Viering
Abstract: According to an example aspect of the present invention, there is provided a method comprising, determining, by a source base station, a first target cell and a second target cell for a handover of a user equipment, wherein the first target cell and the second target cell are cells of the same target base station, setting, by the source base station, an identifier of a first handover preparation procedure and an identifier of a second handover preparation procedure, wherein the identifier of the first handover preparation procedure is different compared to the identifier of the second handover preparation procedure, initializing, by the source base station, the first handover preparation procedure to the first target cell and the second handover preparation procedure to the second target cell and binding, by the source base station, the identifier of the first handover preparation procedure and the identifier of the second handover preparation procedure.
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公开(公告)号：US10652795B2
公开(公告)日：2020-05-12
申请号：US15567684
申请日：2016-04-12
Applicant: NOKIA SOLUTIONS AND NETWORKS OY
Inventor： Subramanya Chandrashekar , Hans Thomas Hoehne , Devaki Chandramouli , Cinzia Sartori
Abstract: There are provided measures for improvements in small cell mobility with dual/multi connectivity. Such measures exemplarily comprise terminating at least one control plane signaling connection from said terminal for said at least first network access entity and second network access entity, maintaining a terminal related access stratum context commonly for radio accesses of said terminal to said at least first network access entity and second network access entity, and initiating switching of said radio access of said terminal from said first network access entity to said second network access entity for user plane data transfer with said control plane signaling connection for said second network access entity being applied unchanged, thereby providing, in a control plane for a terminal, connection management for at least a first network access entity and a second network access entity, wherein said at least first network access entity and second network access entity providing radio access for user plane data transfer for said terminal, wherein said terminal being capable of having radio access to said at least first network access entity and second network access entity for user plane data transfer.
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公开(公告)号：US12192750B2
公开(公告)日：2025-01-07
申请号：US18258069
申请日：2021-10-22
Applicant: Nokia Solutions and Networks Oy
Inventor： Subramanya Chandrashekar , Jean-Michel Pugeat , Raghuram Reddy Krishnamurthy , Bruno Landais
Abstract: Various example embodiments relate to relate to network nodes (20A; 20B), methods and computer program products configured to hand over a communication link between a cell and user equipment (10) in a wireless communication network from a source cell (40A) to a target cell (40B; 40C). According to various, but not necessarily all, embodiments of the invention there is provided a node (20A), comprising: means configured to establish a communication link between a source cell (40A) and user equipment (10); means configured to transmit a series of data packets to the user equipment (10), each data packet comprising an associated sequence identifier; means to receive an acknowledgement of successful receipt of a data packet of the series by user equipment (10), the acknowledgement comprising an indication of the successfully received data packet sequence identifier; means configured to receive an indication of an identified handover target cell (40B; 40C); means configured to request handover of the user equipment (10) to the identified handover target cell (40B; 40C); means configured to receive an acknowledgement of handover request from the identified handover target cell (40B; 40C); and means to forward data packets to be transmitted to user equipment (10) to the identified target cell (40B; 40C), the forwarded data packets comprising the indication of associated sequence identifier and the most recent successfully received data packet sequence identifier. Also provided is a node (20B), comprising: means configured to receive a request for handover of user equipment (10) from a source cell (40A) to a target cell (40B; 40C); means configured to transmit an acknowledgement of handover request to the source cell (40A); and means to receive forwarded data packets forming a series of data packets to be transmitted to user equipment (10), the forwarded data packets comprising an indication of a sequence identifier associated with each forwarded data packet and an indication of a most recent successfully received data packet sequence identifier. Arrangements recognise that one way to mitigate some of the negative effects associated with early data forwarding, for example, the increased use of network memory and the risk of duplicate transmissions, is by providing a mechanism supported by a source (20A) and target node (20B) to allow a target access node (20B) to perform efficient data discarding.
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公开(公告)号：US10313323B2
公开(公告)日：2019-06-04
申请号：US15504044
申请日：2014-08-28
Applicant: Nokia Solutions and Networks Oy
Inventor： Mika Forssell , Jari Pekka Mustajarvi , Hans Thomas Hoehne , Subramanya Chandrashekar , Gyorgy Tamas Wolfner
Abstract: A method and apparatus may be configured to determine a network identity that is valid for the first network and a second network. The method may also include assigning the network identity to a user equipment. The method may also providing the network identity to one of the second network and a user equipment. The first network and the second network may be based on different technologies.
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