Method and Apparatus For Transmitting/Receiving Control Message Related to Packet Call Service in an IP Multimedia Subsystem
First Claim
1. A method of transmitting/receiving a control message related to a packet call service in an IMS (IP Multimedia Subsystem) service, comprising the steps of:
- determining whether a UE (User Equipment) has registered to the IMS service by the UE, upon receipt of an RRC (Radio Resource Control) connection request;
setting an SRB_IMS (Signaling Radio Bearer_IMS) requested parameter requesting processing of an IMS control message through an SRB by the UE, depending on whether the UE has registered to the IMS service;
transmitting an RRC connection request message including the SRB_IMS requested parameter to an RNC (Radio Network Controller) by the UE; and
configuring an SRB_IMS entity by the UE.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and Method for transmitting control message related to a packet call service in an IP multimedia subsystem (IMS) that transmits/receives an IMS control message using a control plane to reduce a delay caused by setting of a user plane in a packet call setup process. A user equipment (UE) determines whether an IMS service is registered in response to a radio resource control (RRC) connection request. The UE sets an SRB_IMS request parameter requiring that the IMS control message be processed through a signaling radio bearer (SRB) depending on whether the IMS service is registered. The UE transmits an RRC connection request message including the SRB_IMS request parameter to a radio network controller (RNC). The UE configures an SRB_IMS entity.
-
Citations
54 Claims
-
1. A method of transmitting/receiving a control message related to a packet call service in an IMS (IP Multimedia Subsystem) service, comprising the steps of:
-
determining whether a UE (User Equipment) has registered to the IMS service by the UE, upon receipt of an RRC (Radio Resource Control) connection request; setting an SRB_IMS (Signaling Radio Bearer_IMS) requested parameter requesting processing of an IMS control message through an SRB by the UE, depending on whether the UE has registered to the IMS service; transmitting an RRC connection request message including the SRB_IMS requested parameter to an RNC (Radio Network Controller) by the UE; and configuring an SRB_IMS entity by the UE. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of transmitting/receiving a control message related to a packet call service in an IMS (IP Multimedia Subsystem) service, comprising the steps of:
-
receiving from a UE (User Equipment) an RRC (Radio Resource Control) connection request message including an SRB_IMS (Signaling Radio Bearer_IMS) requested parameter requesting processing an IMS control message through an SRB; configuring an SRB_IMS entity according to the SRB_IMS requested parameter; receiving an IMS control message including an IMS indicator from an SGSN (Serving GPRS Support Node) by an RNC (Radio Network Controller); checking the IMS indicator by the RNC; and transmitting the NAS message to the UE via the SRB_IMS entity by the RNC, if the IMS indicator indicates that the NAS message is an IMS control message. - View Dependent Claims (14, 15, 16, 17)
-
-
18. A UE (User Equipment) device for transmitting/receiving a control message related to a packet call service using a control plane in an IMS (IP Multimedia Subsystem) service, comprising:
-
an RRC (Radio Resource Control) layer having an AS (Access Stratum) handler and a NAS (Non Access Stratum) handler, for receiving an RRC connection request message from an SGSN (Serving GPRS Support Node); an IMS controller for processing an IMS control message; and a plurality of SRBs (Signaling Radio Bearers) for transmitting/receiving messages between the RRC layer and radio channels, wherein the SRBs include an SRB_IMS entity for providing the IMS control message to the IMS controller via the NAS handler. - View Dependent Claims (19, 20)
-
-
21. A method of transmitting/receiving a control message related to a packet call service in an IMS (IP Multimedia Subsystem) service, comprising the steps of:
-
receiving from a UE (User Equipment) an RRC (Radio Resource Control) connection request message including an SRB_IMS (Signaling Radio Bearer_IMS) requested parameter requesting processing an IMS control message through an SRB by an RNC (Radio Network Controller); configuring an SRB_IMS entity according to the SRB_IMS requested parameter by the RNC; receiving from an SGSN (Serving GPRS Support Node) an IMS control message including information indicating a GTP (GPRS Tunneling Protocol) tunnel to transmit the IMS control message through by the RNC; and transmitting a NAS message including the IMS control message to the UE via the SRB_IMS entity by the RNC. - View Dependent Claims (22, 23, 24)
-
-
25. A UE (User Equipment) device for transmitting/receiving a control message related to a packet call service using a control plane in an IMS (IP Multimedia Subsystem) service, comprising:
-
an RRC (Radio Resource Control) layer having an AS (Access Stratum) handler and a NAS (Non Access Stratum) handler, for receiving an RRC connection request message from an SGSN (Serving GPRS Support Node); an IMS controller for processing an IMS control message and including information indicating a GTP (GPRS Tunneling Protocol) tunnel to transmit the IMS control message through in the IMS control message; and a plurality of SRBs (Signaling Radio Bearers) for transmitting/receiving messages between the RRC layer and radio channels, wherein the SRBs include an SRB_IMS entity for providing the IMS control message to the IMS controller via the NAS handler. - View Dependent Claims (26, 27, 28, 29)
-
-
30. A method of transmitting/receiving a control message related to a packet call service in an IMS (IP Multimedia Subsystem) service, comprising the steps of:
-
generating an IMS control message, after setting up an RRC (Radio Resource Control) connection by a UE (User Equipment); including the IMS control message in an L3 (Layer
3) message by the UE; andtransmitting the L3 message to an SGSN (Serving GPRS Support) node via an SRB (Signaling Radio Bearer) entity for processing an RRC message related to GMM (GPRS Mobility Management)/SM (Session Management) by the UE. - View Dependent Claims (31, 32, 33, 34, 35)
-
-
36. A method of transmitting/receiving a control message related to a packet call service in an IMS (IP Multimedia Subsystem) service, comprising the steps of:
-
receiving data from a GGSN (Gateway GPRS Support Node) through a first GTP (GPRS Tunneling Protocol) tunnel by an SGSN (Serving GPRS Support Node); determining whether a second GTP tunnel to an RNC (Radio Network Controller) corresponding to the first GTP tunnel has been established by the SGSN, if the data is an IMS control message; generating an L3 (Layer
3) message including information identifying the first GTP tunnel and the IMS control message by the SGSN, if the second GTP tunnel has not been established; andtransmitting the L3 message to an SRB (Signaling Radio Bearer) entity for processing an RRC (Radio Resource Control) message related to GMM (GPRS Mobility Management)/SM (Session Management) of a UE (User Equipment), by the SGSN. - View Dependent Claims (37, 38, 39, 40, 41)
-
-
42. A UE (User Equipment) device for transmitting/receiving a control message related to a packet call service using a control plane in an IMS (IP Multimedia Subsystem) service, comprising:
-
an IMS controller for generating and processing an IMS control message; an L3 (Layer
3) controller for generating and processing an L3 message;a switch for switching the IMS controller to the L3 controller or a radio bearer; and an SRB (Signaling Radio Bearer) entity switched to the switch through the L3 controller, for processing the IMS control message. - View Dependent Claims (43, 44, 45, 46, 47, 48)
-
-
49. A method of transmitting/receiving a control message related to a packet call service in an IMS (IP Multimedia Subsystem) service, comprising the steps of:
-
receiving from an SGSN (Serving GPRS Support Node) a paging message including an IMS signaling indicator indicating incoming of an IMS control message in the SGSN by a UE (User Equipment); transmitting to an RNC (Radio Network Controller) an RRC connection request message including an SRB_IMS (Signaling Radio Bearer_IMS) requested parameter requesting processing the IMS control message through an SRB in response to the IMS signaling indicator, by the UE; and configuring an SRB_IMS entity for processing the IMS control message by the UE. - View Dependent Claims (50, 51, 52, 53, 54)
-
Specification