# US 10,455,461 B2 · Sleep-state for mobile terminal and service initiation for mobile terminals in sleep-state > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,455,461 B2 - Document ID: US10455461B2 - Status: Granted - Kind: B2 - Application number: 16/352,560 - Filed: 2019-03-13 - Published: 2019-07-11 - Granted: 2019-10-22 - Earliest claimed: 2006-03-27 - Assignees: Panasonic Intellectual Property Corporation of America - Applicants: Panasonic Intellectual Property Corporation of America - Inventors: Jens Bachmann; Kilian Weniger; Rolf Hakenberg - Web page: https://patentgrep.com/patent/US10455461B2 ## CPC - H04W 52/0235: {where the received signal is a power saving command} - H04W 36/0058: {Transmission of hand-off measurement information, e.g. measurement reports} - H04W 36/322: {by location data} - H04W 68/005: {Transmission of information for alerting of incoming communication} - H04W 76/27: Transitions between radio resource control [RRC] states - H04W 8/26: Network addressing or numbering for mobility support - H04W 48/18: Selecting a network or a communication service - H04W 68/00: User notification, e.g. alerting and paging, for incoming communication, change of service or the like - H04W 76/10: Connection setup - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - Y02B 70/30: Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## 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. ## Claims ### Claim 1 A communication apparatus in a second access network capable of communicating with a mobile terminal capable of communicating with a core network via a first access network or the second access network, wherein radio access technology of the first access network is different from radio access technology of the second access network, the communication apparatus comprising: a transmitter, which, in operation, forwards a paging request to the mobile terminal, wherein the paging request addressed to the mobile terminal is to be routed through the first access network but is rerouted through the second access network when the mobile terminal is attached to the second access network; and a receiver, which, in operation, receives a message from the mobile terminal through the second access network in response to the paging request, the message requesting a service to be delivered through the first access network; wherein the transmitter, in operation, transmits a handover command through the second access network to the mobile terminal, the handover command directing the mobile terminal to perform handover to the first access network and to connect to the first access network. ### Claim 2 (depends on 1) The communication apparatus according to claim 1, wherein the transmitter, in operation, notifies an entity in the core network that the mobile terminal is configured to use the second access network for receiving data when the mobile terminal is attached to the second access network. ### Claim 3 (depends on 2) The communication apparatus according to claim 2, wherein the entity comprises a mobility management entity. ### Claim 4 (depends on 1) The communication apparatus according to claim 1, wherein the service comprises a voice service. ### Claim 5 (depends on 1) The communication apparatus according to claim 1, wherein the mobile terminal is in a deactivated state in the first access network when the mobile terminal is attached to the second access network. ### Claim 6 (depends on 1) The communication apparatus according to claim 1, wherein a distribution path for the service is switched to the first access network after the mobile terminal enters an active state in the first access network. ### Claim 7 (depends on 1) The communication apparatus according to claim 1, wherein the message received through the second access network requests initiation of the service. ### Claim 8 (depends on 1) The communication apparatus according to claim 1, wherein the handover command is for instructing the mobile terminal to be activated in the first access network. ### Claim 9 (depends on 8) The communication apparatus according to claim 8, wherein the activation in the first access network includes establishment of a bearer service through the first access network. ### Claim 10 A method performed by a communication apparatus in a second access network capable of communicating with a mobile terminal capable of communicating with a core network via a first access network or the second access network, wherein radio access technology of the first access network is different from radio access technology of the second access network, the method comprising the steps of: forwarding, by the communication apparatus, a paging request to the mobile terminal, wherein the paging request addressed to the mobile terminal is to be routed through the first access network but is rerouted through the second access network when the mobile terminal is attached to the second access network; receiving, by the communication apparatus, a message from the mobile terminal through the second access network in response to the paging request, the message requesting a service to be delivered through the first access network; and transmitting, by the communication apparatus, a handover command through the second access network to the mobile terminal, the handover command directing the mobile terminal to perform handover to the first access network and to connect to the first access network. ### Claim 11 (depends on 10) The method according to claim 10, further comprising the step of: notifying an entity in the core network that the mobile terminal is configured to use the second access network for receiving data when the mobile terminal is attached to the second access network. ### Claim 12 (depends on 11) The method according to claim 11, wherein the entity comprises a mobility management entity. ### Claim 13 (depends on 10) The method according to claim 10, wherein the service comprises a voice service. ### Claim 14 (depends on 10) The method according to claim 10, wherein the mobile terminal is in a deactivated state in the first access network when the mobile terminal is attached to the second access network. ### Claim 15 (depends on 10) The method according to claim 10, wherein a distribution path for the service is switched to the first access network after the mobile terminal enters an active state in the first access network. ### Claim 16 (depends on 10) The method according to claim 10, wherein the message received through the second access network requests initiation of the service. ### Claim 17 (depends on 10) The method according to claim 10, wherein the handover command is for instructing the mobile terminal to be activated in the first access network. ### Claim 18 (depends on 17) The method according to claim 17, wherein the activation in the first access network includes establishment of a bearer service through the first access network.