Gateway device, mobile communication system, mobile terminal, packet transfer control method, control method of mobile terminal, and non-transitory computer readable medium
First Claim
1. A gateway device located at a boundary between a radio access network to conduct wireless communication with a mobile terminal or a core network connected to the radio access network and an external network, the gateway device comprising:
- a channel management unit implemented by a processor, that terminates an established logical downlink channel for transmitting a packet to the mobile terminal and a logical uplink channel for receiving a packet from the mobile terminal, wherein the channel management unit is configured to set a downlink channel and the uplink channel individually with a plurality of mobile terminals;
a pass-through packet determination unit implemented by the processor, that controls whether to transfer a packet arriving from the external network to the downlink channel based on a transfer policy; and
a transfer policy control unit implemented by the processor, that changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel in response to detecting a service discovery multicast packet which is transmitted from the mobile terminal to the external network through the logical uplink channel and designates a multicast address as a destination,wherein the transfer policy control unit changes the transfer policy to enable selective transfer of the multicast packet or the broadcast packet to the mobile terminal from which the service discovery multicast packet is transmitted.
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Accused Products
Abstract
A pass-through packet determination unit (112) of an anchor GW 100A controls whether or not to transfer a Layer 3 packet arriving from an external network (20) to a downlink channel set up with a mobile terminal (700) based on a transfer policy. Further, a transfer policy control unit (111) changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal (700) by the downlink channel in response to receiving from the mobile terminal (700) a Layer 3 packet preliminarily specified as a trigger to start transfer of a multicast packet or a broadcast packet to the mobile terminal (700) by the downlink channel.
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Citations
36 Claims
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1. A gateway device located at a boundary between a radio access network to conduct wireless communication with a mobile terminal or a core network connected to the radio access network and an external network, the gateway device comprising:
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a channel management unit implemented by a processor, that terminates an established logical downlink channel for transmitting a packet to the mobile terminal and a logical uplink channel for receiving a packet from the mobile terminal, wherein the channel management unit is configured to set a downlink channel and the uplink channel individually with a plurality of mobile terminals; a pass-through packet determination unit implemented by the processor, that controls whether to transfer a packet arriving from the external network to the downlink channel based on a transfer policy; and a transfer policy control unit implemented by the processor, that changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel in response to detecting a service discovery multicast packet which is transmitted from the mobile terminal to the external network through the logical uplink channel and designates a multicast address as a destination, wherein the transfer policy control unit changes the transfer policy to enable selective transfer of the multicast packet or the broadcast packet to the mobile terminal from which the service discovery multicast packet is transmitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 32, 34, 35, 36)
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10. A mobile communication system, comprising:
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a radio access network to conduct wireless communication with a mobile terminal; a core network connected to the radio access network; and a gateway device located at a boundary between the radio access network or the core network and an external network and including an interface connectable to the external network, wherein the gateway device includes; a channel management unit implemented by a processor, that terminates an established logical downlink channel for transmitting a packet to the mobile terminal and a logical uplink channel for receiving a packet from the mobile terminal, wherein the channel management unit is configured to set a downlink channel and the uplink channel individually with a plurality of mobile terminals; a pass-through packet determination unit implemented by the processor, that controls whether to transfer a packet arriving from the external network to the downlink channel based on a transfer policy; and a transfer policy control unit implemented by the processor, that changes the transfer policy, wherein the transfer policy control unit changes the transfer policy to enable transfer of a multicast packet or a broadcast packet to the mobile terminal by the downlink channel in response to detecting a service discovery multicast packet which is transmitted from the mobile terminal to the external network through the logical uplink channel and designates a multicast address as a destination, and wherein the transfer policy control unit changes the transfer policy to enable selective transfer of the multicast packet or the broadcast packet to the mobile terminal from which the service discovery multicast packet is transmitted. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A packet transfer control method at a boundary between a radio access network to conduct wireless communication with a mobile terminal or a core network connected to the radio access network and an external network, the packet transfer control method comprising:
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terminating an established logical downlink channel for transmitting a packet to the mobile terminal and a logical uplink channel for receiving a packet from the mobile terminal by setting a downlink channel and the logical uplink channel individually with a plurality of mobile terminals; detecting a service discovery multicast packet which is transmitted from the mobile terminal to the external network through the logical uplink channel and designates a multicast address as a destination; and changing a packet transfer policy from the external network to the downlink channel to enable transfer of a multicast packet or a broadcast packet arriving from the external network to the mobile terminal in response to detecting the service discovery multicast packet, wherein the changing of the packet transfer policy includes changing the transfer policy to enable selective transfer of the multicast packet or the broadcast packet to the mobile terminal from which the service discovery multicast packet is transmitted. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 33)
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28. A non-transitory computer readable medium storing a program causing a computer to execute a packet transfer control at a boundary between a radio access network to conduct wireless communication with a mobile terminal or a core network connected to the radio access network and an external network, the transfer control comprising:
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terminating an established logical downlink channel for transmitting a packet to the mobile terminal and a logical uplink channel for receiving a packet from the mobile terminal by setting a downlink channel and the logical uplink channel individually with a plurality of mobile terminals; detecting a service discovery multicast packet which is transmitted from the mobile terminal to the external network through the logical uplink channel and designates a multicast address as a destination; and changing a packet transfer policy from the external network to the downlink channel to enable transfer of a multicast packet or a broadcast packet arriving from the external network to the mobile terminal in response to detecting the service discovery multicast packet, wherein the changing of the packet transfer policy includes changing the transfer policy to enable selective transfer of the multicast packet or the broadcast packet to the mobile terminal from which the service discovery multicast packet is transmitted. - View Dependent Claims (29, 30, 31)
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Specification