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US 2017/0013666 A1Published application
Communication method, mobile network system and device
AssigneeNEC Corporation
InventorsJunya Okabe, Toshiyuki Tamura
Life of this patent
Estimating the term…
Abstract
A serving gateway includes a memory storing instructions, and at least one processor configured to process the instructions to, if a mobility management node performs restarting thereof, maintain at least one specific S5/S8 bearer between the serving gateway and a packet data network gateway eligible for restoration of network initiated communication services and release all other S5/S8 bearers.
Claims26
A serving gateway, comprising:
- a memory storing instructions;
- and
- at least one processor configured to process the instructions to:
- if a mobility management node performs restarting thereof, maintain at least one specific S5/S8 bearer between the serving gateway and a packet data network gateway eligible for restoration of network initiated communication services and release all other S5/S8 bearers.
1 more element
A bearer management method, comprising:
- maintaining at least one specific S5/S8 bearer between a serving gateway and a packet data network gateway eligible for restoration of network initiated communication services;
- and
- releasing all other S5/S8 bearers, when a mobility management node performs restarting thereof.
A mobility management node, comprising:
- a memory storing instructions;
- and
- at least one processor configured to process the instructions to:
- send a message to a serving gateway that maintain specific S5/S8 bearers between the serving gateway and a packet data network gateway eligible for restoration of network initiated communication services, upon receiving a Downlink Data Notification message from the serving gateway, after the mobility management node restarting;
- and
- page a mobile terminal to force the mobile terminal to re-attach to a network.
3 more elements
A mobility management method, comprising:
- sending a message to a serving gateway that maintain specific S5/S8 bearers between the serving gateway and a packet data network gateway eligible for restoration of network initiated communication services, upon receiving a Downlink Data Notification message from the serving gateway, after a mobility management node restarting;
- and
- paging a mobile terminal to force the mobile terminal to re-attach to a network.
A mobile terminal used in a mobile communication network, the mobile terminal comprising:
- a receiver configured to receive paging from the mobile communication network, upon restarting of a mobility management node in the mobile communication network, maintaining a specific S5/S8 bearer between a serving gateway and a packet data network gateway eligible for restoration of network initiated communication services, while releasing all other S5/S8 bearers;
- and
- a transmitter configured to, in response to the paging, transmit an attach request to re-attach.
A communication method for a mobile terminal used in a mobile communication network, the method comprising:
- receiving paging from the mobile communication network, upon restarting of a mobility management node in the mobile communication network, maintaining a specific S5/S8 bearer between a serving gateway and a packet data network gateway eligible for restoration of network initiated communication services, while releasing all other S5/S8 bearers;
- and
- transmitting an attach request to re-attach, in response to the paging.
A communication system, comprising:
- a mobility management node that manages mobility of a mobile terminal;
- a serving gateway;
- and
- a packet data network gateway,
- wherein the serving gateway is configured to, in case restarting of the mobility management node is performed, maintain at least one specific S5/S8 bearer between the serving gateway and the packet data network gateway eligible for restoration of network initiated communication services, and release all other S5/S8 bearers,
- wherein the serving gateway is configured to send a Downlink Data Notification message including identification information to the mobility management node, when an incoming call to the mobile terminal is received after restarting of the mobility management node, and
- wherein the mobility management node is configured to receive the Downlink Data Notification message including the identification information from the serving gateway, and page the mobile terminal using the identification information to force the mobile terminal to re-attach to a network, using the identification information.
4 more elements
A communication method, comprising:
- in case restarting of a mobility management node is performed, maintaining at least one specific S5/S8 bearer between a serving gateway and a packet data network gateway eligible for restoration of network initiated communication services, and releasing all other S5/S8 bearers;
- sending a downlink data notification message including identification information to the mobility management node, when an incoming call to the mobile terminal is received after restarting of the mobility management node;
- paging the mobile terminal using the identification information to force the mobile terminal to re-attach to a network, using the identification information.
Dependencies are inferred from the claim text.