Abstract
The invention relates to the initiation of a service to a mobile terminal capable of communicating via at least a first and second access network. Further the invention relates to a reduction of power consumption of mobile terminals supporting connectivity to at least two access networks. The invention also relates to mobile communication systems and in particular to mobile communications through heterogeneous access networks. In order to prove improved method for initiating services to mobile terminals and/or to reduce power consumption of mobile terminals the invention introduces of a sleep state that can be entered by the terminal for an access system if same is not used. Upon requesting a service from/to the mobile terminal the mobile terminal starts service initiation through a second access system and transits back to active state for the first access system for service provision.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G,3G,2G | 30/08/2011 | ISLD-201108-013 | PANASONIC CORP | Yes | Basis Patent | ||||
| 4G | 20/08/2020 | ISLD-202010-016 | PANASONIC CORP |
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Specification Information
Specification Information
Technologies
Family Information
| All Granted Patents In Patent Family : | ---- |
| All Pending Patents In Patent Family : | ---- |
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | |||||||
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
DRX/EDRX/DTX/EDTX
Product
Use Cases
Services
Claim
1. A method for initiating a service to a mobile terminal capable of communicating via at least a first and second access network, wherein the mobile terminal has IP connectivity to the first access network and is in a sleep state in the second access network, the method comprising the steps:', 'receiving at or transmitting by the mobile terminal a service request through the first access network,', 'starting initiation of the service by control signaling through the first access network,', "receiving at the mobile terminal via the first access network a command to activate the mobile terminal's interface to the second access network for service provision, and", 'activating by the mobile terminal its interface to the second access network for continuing the initiation of the service or for receiving service data through the second access network.', "2. The method according to claim 1 , further comprising the step of setting up a radio connection for service provision between the mobile terminal and the second access network upon activation of the mobile terminal's interface to the second access network.", '3. The method according to claim 2, further comprising the step of informing a routing entity in a core network on setup of the radio connection.
4. The method according to one of claims 1 to 3, wherein the mobile terminal has been assigned a first IP address for communication through the first access network and a second IP address for communication through the second network prior to receiving the service request.
5. The method according to claim 4, wherein the mobile terminal uses the first IP address as a care-of address for receiving data addressed to the second IP address.', "6. The method according to one of claims 1 to 5, wherein the mobile terminal's interface to the second access network is deactivated while in sleep state.", '7. The method according to one of claims 1 to 5, wherein the mobile terminal periodically receives broadcast system information from the second access network and/or does not transmit any uplink data to the second access network while in sleep state.
8. The method according to one of claims 1 to 7, wherein the mobile terminal transits to an active state by activating its interface to the second access network.', "9. The method according to one of claims 1 to 8, wherein the command to activate the mobile terminal's radio interface comprises radio access network parameters for use by the mobile terminal."10. A method for initiating a service for a mobile terminal through a first access network, wherein the mobile terminal has IP connectivity to a second access network and is in a sleep state in the first access network, the method comprising the steps:', 'transmitting by a network entity in a core network to the mobile terminal or receiving from the mobile terminal at the network entity a service initiation request through the second access network,', 'starting initiation of the service by control signaling with the mobile terminal through the second access network,', 'configuring system resources in the first access network for service provision, and', 'transmitting from the network entity a command to the mobile terminal to activate its interface to the first access network, wherein the command is transmitted through the second access network
11. The method according to claim 10, further comprising the steps of:', 'receiving by the network entity a message indicating that the mobile terminal has established a radio connection to the first access network upon having transmitted the activation command, and routing service-related data destined to the mobile terminal through the first access network upon having received the message
12. The method according to claim 10 or 11 , wherein a care-of address registered previous to service initiation by the mobile terminal at a IP mobility management entity in the core network is used for packet transmissions to the mobile terminal through the second access network
13. The method according to one of claims 10 to 12, further comprising the step of determining at a network entity of the core network whether to utilize the first or the second access network to provide the requested service to the mobile terminal, and', 'wherein the transmission of the command to activate the interface to the first access network and the configuration of system resources are performed, if it is decided to utilize the first access network.', "14. The method according to one of claims 10 to 13, wherein the command to activate the mobile terminal's radio interface is transmitted by a network entity of the core network and comprises radio access network parameters for use by the mobile terminal."15. The method according to claim 14, wherein said radio access network parameters have been received by the network entity during configuration of system resources in the first access network from a mobility management and/or user plane entity to be serving the mobile terminal in the first access network
16. The method according to one of claims 10 to 15, further comprising the step of determining a mobility management and/or user plane entity to be serving the mobile terminal in service provision through the first access network
17. The method according to one of claims 10 to 16, further comprising the step of determining radio access parameters of the mobile terminal for service provision through the first access network
18. The method according to claim 17, wherein the radio access service parameters include the service radio cell to be serving the mobile terminal in service provision
19. The method according to one of claims 10 to 18, wherein configuration of system resources comprises transmitting context information to a mobility management and/or user plane entity in the core network serving the mobile terminal in service provision through the first access network..
20. The method according to claim 19, wherein the context information have been buffered in a network entity of the core network having mobility management functionality upon the mobile terminal transiting into sleep state.
21. The method according to claim 16, further comprising the step of transmitting to the mobility management and/or user plane entity to be serving the mobile terminal a command to reactivate a context for communication through the first access network.
22. The method according to claim 16, further comprising the step of instructing a mobility management and/or user plane entity that has been serving the mobile terminal upon transiting into sleep state to transfer a context for communication through the first access network to the mobility management and/or user plane entity to be serving the mobile terminal.
23. A method for reducing the power consumption of a mobile terminal supporting connectivity to at least two access networks, the method comprising the steps of:', 'attaching the mobile terminal to a first network, thereby obtaining an IP address for the mobile terminal for use in communication through the first access network,', 'registering the IP address as a care-of address of the mobile terminal at an IP mobility management entity, wherein the IP mobility management entity provides IP mobility management functionality to the mobile terminal, and', 'upon having registered the care-of address at the IP mobility management entity, transiting by the mobile terminal into a sleep state for communication via a second access network.
24. The method according to claim 23, further comprising the step of attaching the mobile terminal to the second access network.
25. The method according to claim 23 or 24, wherein in the sleep state the mobile terminal deactivates its air interface to the second access network.
26. The method according to claim 25, wherein in the sleep state the mobile terminal periodically receives broadcast system information from the second access network and/or does not transmit any uplink data to the second access network.
27. The method according to one of claim 23 to 26, further comprising the step of assigning a tracking area to the mobile terminal within the first radio access network.
28. The method according to one of claims 23 to 27, further comprising the step of requesting by a network entity in the core network context information from a mobility management and/or user plane entity serving the mobile terminal in the second access network when transiting into sleep state.
29. The method according to claim 28, further comprising the step of buffering the context information in the network entity for later use in service provision to the mobile terminal through the second access network.', '30. The method according to one of claims 23 to 29, further comprising the step of deactivating a context at a mobility management and/or user plane entity in the core network serving the mobile terminal when transiting into sleep state.', '31. The method according to one of claims 28 to 30, further comprising the step of redirecting data traffic directed to the mobile terminal to a gateway for provision to the mobile terminal through the first access network.', '32. The method according to one of claims 23 to 31 , further comprising the step of checking the availability of the mobile terminal through the first access network.', '33. The method according to claim 32, wherein the mobility management and/or user plane entity checks the availability on an event triggered basis or periodically.', '34. The method according to one of claims 23 to 33, further comprising the step of activating the interface to the second access network by the mobile terminal in response to a timeout of a timer or if no data have been received via the interface to the first access network for a predetermined time span.', '35. The method according to claim 23, wherein attaching to the first access network comprises transmitting a message from the mobile terminal to the IP mobility management entity to register the obtained IP address as the care-of address for an IP address of the mobile terminal to be used for communication through the second access network.', '36. The method according to claim 23, further comprising the step of obtaining an IP address to be used by the mobile terminal for communication through the second access network when authenticating the mobile terminal in the first access network.', '37. The method according to claim 23 or 36, wherein the attaching to the first access network comprises informing the mobile terminal on an IP address to be used for communication through the second access network.', '38. The method according to claim 23, 36 or 37, further comprising the step of generating a context at a mobility management and/or user plane entity within a core network connected to the first and second access network.', '39. The method according to claim 23, 36 or 37, further comprising the step of instructing a mobility management and/or user plane entity within a core network connected to the first and second access network to generate a context by the IP mobility management entity.
40. The method according to claim 23, 36, 37, 38 or 39, further comprising the step of obtaining an identification of the IP mobility management entity when authenticating the mobile terminal in the first access network.
41. The method according to one of claims 1 to 40, wherein the first and the second access network use different access technologies.
42. The method according to one of claims 1 to 42, wherein one of the first and second access networks is a 3GPP based radio access network and the other access network is a non-3GPP based access network.
43. A mobile terminal capable of communicating via at least a first and second access network and having IP connectivity to the first access network and is in a sleep state in the second access network, the mobile terminal comprising:', 'a transceiver for receiving or transmitting a service request through the first access network, and for starting initiation of the service by control signaling through the first access network,', "the transceiver being adapted to receive a command to activate the mobile terminal's interface to the second access network for service provision via the first access network, and", "a controlling unit for activating the mobile terminal' interface to the second access network for continuing the initiation of the service or for receiving service data through the second access network.", '44. The mobile terminal according to claim 43, further comprising means adapted to perform the steps of the method according to one of claims 2 to 9.
45. A network comprising at least one network element adapted to perform the method according to one of claims 10 to 22.
46. A mobile terminal supporting connectivity to at least two access networks comprising:', 'a transceiver for attaching the mobile terminal to a first network, thereby obtaining an IP address for the mobile terminal for use in communication through the first access network, and', 'for registering the IP address as a care-of address of the mobile terminal at an IP mobility management entity, wherein the IP mobility management entity provides IP mobility management functionality to the mobile terminal, and', 'a processor for transiting into a sleep state for communication via the second access network upon having registered the care-of address at the IP mobility management entity.']
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SUMMARY
ClaimChart-WO2007110138A1-STO
Patent number:WO2007110138A1
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.