Method of arranging data transfer in a wireless telecommunication system
First Claim
1. A method of arranging data transfer in a wireless telecommunication system comprising at least one wireless terminal, a first radio access gateway and a first base station connected thereto, a second radio access gateway and a second base station connected thereto, in which system said first radio access gateway is arranged to perform a protocol conversion on the data between the terminal and an end point in an IP-based network, the method comprising:
- specifying to said first radio access gateway address information on said second radio access gateway in response to the fact that it is detected that handover from the first base station to the second base station is needed for the terminal, transmitting the data directed to the terminal through said first radio access gateway and said second radio access gateway to the terminal in response to the fact that the terminal has been handed over to the second base station, transmitting the address information on said second radio access gateway to the end point in the IP network, and transmitting the data directed to the terminal from the end point to said second radio access gateway on the basis of the address information.
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0 Petitions
Accused Products
Abstract
A method of arranging data transfer in a wireless telecommunication system comprising at least one wireless terminal, a first radio access gateway and a first base station connected thereto, a second radio access gateway and a second base station connected thereto. The first base station and the first radio access gateway are arranged to transmit data between the terminal and an end point in an IP-based network. Address information on the second radio access gateway is specified to the first radio access gateway when it is detected that handover from the first base station to the second base station is needed for the terminal. Data directed to the terminal is transmitted through the first radio access gateway and the second radio access gateway to a wireless network after the terminal has been handed over to the second base station. The address information on the second radio access gateway is transmitted to the end point in the IP network and the data directed to the terminal is transmitted from the end point to the second radio access gateway.
38 Citations
14 Claims
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1. A method of arranging data transfer in a wireless telecommunication system comprising at least one wireless terminal, a first radio access gateway and a first base station connected thereto, a second radio access gateway and a second base station connected thereto, in which system said first radio access gateway is arranged to perform a protocol conversion on the data between the terminal and an end point in an IP-based network, the method comprising:
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specifying to said first radio access gateway address information on said second radio access gateway in response to the fact that it is detected that handover from the first base station to the second base station is needed for the terminal, transmitting the data directed to the terminal through said first radio access gateway and said second radio access gateway to the terminal in response to the fact that the terminal has been handed over to the second base station, transmitting the address information on said second radio access gateway to the end point in the IP network, and transmitting the data directed to the terminal from the end point to said second radio access gateway on the basis of the address information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless telecommunication system comprising at least one wireless terminal, a first radio access gateway and a first base station connected thereto, a second radio access gateway and a second base station connected thereto, in which system said first radio access gateway is arranged to perform a protocol conversion on the data between the terminal and an end point in an IP-based network, specification of address information on said second radio access gateway to said first radio access gateway is arranged in response to the fact that it is detected that handover from the first base station to the second base station is needed for the terminal,
said first radio access gateway is arranged to transmit the data directed to the terminal to said second radio access gateway on the basis of the address information in response to the fact that the terminal has been handed over to the second base station, transmission of the address information on the second radio access gateway to the end point in the IP network is arranged, and said end point is arranged to transmit the data directed to the terminal to said second radio access gateway on the basis of the address information.
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12. A network part of a wireless telecommunication system, the network part being connected to a first base station, wherein said network part is arranged to perform a protocol conversion on the data between at least one wireless terminal served by the first base station and an end point in an IP-based network, said network part is arranged to specify address information on a radio access gateway of a second network part in response to the fact that it has been detected that handover is needed from the first base station to a base station connected to said second network part,
said network part is arranged to transmit the data directed to the terminal to said second network part on the basis of the address information, and said network part is arranged to transmit the address information on said second network part to the end point.
Specification