A method for processing a signal and a bearer separately in an ALL IP network system includes the steps of: transmitting a service request message (SRM) from a mobile station (MS) to a radio network (RN); at the RN, determining whether a circuit related service or a packet related service is requested; if the circuit related service is requested: (i) transmitting a CM service request message to a MSC server, (ii) receiving a service request acknowledgement (SRA) message from the MSC server, and (iii) assigning a bearer in response to the SRA message; and if the packet-related service is requested: (i) transmitting the (SRM) from the RN to a core network without processing the SRM; (ii) at the core network, processing the SRM and transmitting an assignment request to the RN, the assignment request requesting that the RN assign the bearer; and (iii) assigning the bearer in response to the assignment request.
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7. computer-readable recording media storing instructions for performing a method for processing a signal and a bearer separately in an ALL IP network system including one or more mobile stations, one or more radio networks and one or more core networks, the method comprising the steps of A non-transitory computer-readable medium having instructions stored thereon, that upon execution by a computing device cause the computing device to perform operations comprising:
a) transmitting a service request message from a mobile station to a radio network;
b) at the radio network, determining whether a circuit-related service or a packet-related service is requested;
c) if the circuit related service is requested:
(i) transmitting a connection management (CM) service request message to a mobile switching center (MSC) server;
(ii) receiving a service request acknowledgement message from the MSC server; and
(iii) assigning a bearer in response to the service request acknowledgement message; and
d) if the packet-related service is requested:
(i) transmitting the service request message from the radio network to a core network without processing the service request message;
(ii) at the core network, processing the service request message and transmitting an assignment request to the radio network, the assignment request requesting that the radio network assign a bearer for user data; and
(iii) assigning the bearer in response to the assignment request.
1. A method for processing a signal and a bearer separately in an ALL IP network system including one or more mobile stations, one or more radio networks and one or more core networks, the method comprising the steps of:
a) transmitting a service request message from a mobile station to a radio network;
b) at the radio network, determining whether a circuit related service or a packet-related service is requested;
c) if the circuit related service is requested:
(i) transmitting a connection management (CM) service request message to a mobile switching center (MSC) server;
(ii) receiving a service request acknowledgement message from the MSC server; and
(iii) assigning a bearer in response to the service request acknowledgement message; and
d) if the packet-related service is requested:
(i) transmitting the service request message from the radio network to a core network without processing the service request message;
(ii) at the core network, processing the service request message and transmitting an assignment request to the radio network, the assignment request requesting that the radio network assign a bearer for user data; and
(iii) assigning the bearer in response to the assignment request.
0. 19. A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising:
instructions to receive a service request message from a mobile station;
instructions to determine whether a circuit-related service or a packet related service is requested;
instructions to, if the circuit-related service is requested:
transmit a connection management (CM) service request message to a mobile switching center (MSC) server;
receive a service request acknowledgement message from the MSC server; and
assign a bearer in response to the service request acknowledgement message; and
instructions to, if the packet-related service is requested:
transmit a second service request message from a radio network to a core network without processing the second service request message;
receive an assignment request message from the core network, wherein the assignment request message requests that the radio network assign the bearer in response to processing of the second service request message by the core network; and
transmit a request to assign the bearer in response to the assignment request, wherein the bearer is assigned by a radio network element serving a radio bearer function.
0. 9. An apparatus for processing a signal and a bearer separately in an ALL IP network system, the apparatus comprising:
a memory configured to store computer-readable instructions; and
a computing device configured to execute the computer-readable instructions to:
receive a service request message from a mobile station;
determine whether a circuit-related service or a packet related service is requested;
if the circuit-related service is requested:
transmit a connection management (CM) service request message to a mobile switching center (MSC) server;
receive a service request acknowledgement message from the MSC server; and
assign a bearer in response to the service request acknowledgement message; and
if the packet-related service is requested:
transmit a second service request message to a core network without processing the second service request message;
receive an assignment request message from the core network, wherein the assignment request message requests that a radio network control system assign the bearer in response to processing of the second service request message by the core network; and
transmit a request to assign the bearer in response to the assignment request, wherein the bearer is assigned by a radio network element serving a radio bearer function.
0. 14. A method comprising:
receiving a service request message from a mobile station at a radio network control system;
at the radio network control system, determining whether a circuit-related service or a packet related service is requested;
if the circuit-related service is requested:
transmitting a connection management (CM) service request message to a mobile switching center (MSC) server from the radio network control system;
receiving a service request acknowledgement message at the radio network control system from the MSC server; and
assigning, at the radio network control system, a bearer in response to the service request acknowledgement message; and
if the packet-related service is requested:
transmitting a second service request message from the radio network control system to a core network without processing the second service request message;
receiving an assignment request message at the radio network control system from the core network, wherein the assignment request message requests that the radio network control system assign the bearer in response to processing of the second service request message by the core network; and
transmitting a request from the network control system to assign the bearer in response to the assignment request, wherein the bearer is assigned by a radio network element serving a radio bearer function.
2. The method as recited in
3. The method as recited in
4. The method as recited in
5. The method as recited in
6. The method as recited in
(A) transmitting a response message related to the service request from the RNCS to the mobile station;
(B) at the RNCS, requesting that the RBF unit assign the bearer; and
(C) at the RBF unit, assigning the bearer.
8. The non-transitory computer-readable recording media medium as recited in
(A) transmitting a response message related to the service request from a radio network control system (RNCS) to the mobile station;
(B) at the RNCS, requesting that a radio bearer function (RBF) unit assign the bearer; and
(C) at the RBF unit, assigning the bearer.
0. 10. The apparatus of claim 9, wherein the apparatus is an element of a radio network configured to communication with mobile devices.
0. 11. The apparatus of claim 9, wherein the computing device is further configured to execute the computer-readable instructions to determined whether the circuit related service or the packet-related service is requested by reading an address of a TCP/IP header allocated to each service request message.
0. 12. The apparatus of claim 11, wherein if the address of the TCP/IP header has an address of a session manager of the core network, it is determined that the packet-related service is requested.
0. 13. The apparatus of claim 12, wherein the computing device is further configured to execute the computer-readable instructions to transmit a response message related to the service request to the mobile station.
0. 15. The method of claim 14, wherein the core network includes the MSC server and a session manager configured to manage a packet-related message.
0. 16. The method of claim 14, wherein whether the circuit related service or the packet-related service is requested is determined by reading an address of a TCP/IP header allocated to each service request message.
0. 17. The method of claim 16, wherein if the address of the TCP/IP header has an address of a session manager of the core network, it is determined that the packet-related service is requested.
0. 18. The method of claim 14, further comprising transmitting a response message related to the service request from the RNCS to the mobile station.
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The present application is a reissue of U.S. patent application Ser. No. 09/863,483 (now U.S. Pat. No. 7,123,594), filed May 23, 2001, which claims priority to Korean Pat. App. No. 200048434, filed Aug. 21, 2000, both of which are hereby incorporated by reference.
This invention relates to an ALL IP radio access network; and more particularly, to a method for separating and processing a signal and a bearer in an ALL IP radio access network.
These days, it is under detailed discussion at international standardization conferences, such as 3GPP and 3GPP2 conferences, that an entire network of a 3G system is to be configured as an ALL IP network based on IP (IP=Internet Protocol).
The ALL IP network is based on a Mobile IP of an IETF (IETF=International Engineering Task Force). In the Mobile IP case, a two-tier address system is adopted for an address conversion technique at the IP layer. In other words, a first address is a COA (COA=care-of address) that is used for path assignment and for transferring data. A second address is a home address that is a unique home address of a mobile host and is used for identifying the mobile host and for session connection.
A unique Internet address called a home address is assigned to a mobile station for the ALL IP network, wherein the unique Internet address corresponds to a host name, similar to the case of an existing fixed host. Also, the mobile station for the ALL IP network has a COA (care-of address) as a packet transfer point, wherein the COA gets changed as the mobile station for the ALL IP network moves between networks. At the present time, the IETF defines three components for mobile IP service: a mobile node, an HA (HA=home agent) and an FA (FA=foreign agent), as described below.
The mobile node is operated as a host or route that supports a mobile service. The mobile node is able to move between networks without modifying an IP address thereof and also communicate continuously with other nodes of the internet by a fixed IP address thereof.
The HA (home agent) is an agent included in a home network of a mobile node, wherein the home network manages a current COA (care-of address) and a home address of the mobile node. The HA (home agent) performs a tunneling function in order to transfer a datagram addressed to the mobile node to a network to which the mobile node is currently attached when the mobile node is in an external (or foreign) network.
The FA (foreign agent) is an agent assigning the COA (care-of address) when the mobile node is in the external network. The FA can assign an IP address as a COA or a temporary IP address to the mobile node. The FA provides a routing service for any mobile node when the mobile node moves into a service area covered by the FA. After performing a detunneling function on a datagram that was tunneled from an HA of the mobile node, the FA transfers the datagram to the mobile node. The FA also provides a gateway service for datagrams transmitted from the mobile node.
A standard model being used in ALL IP networks defines an IPMM (IPMM=IP multi-media) domain and an ANSI-41 domain (ANSI=American National Standards Institute) for a core network. Here the IPMM domain is used for a packet service and the ANSI-41 domain is used for an existing circuit service. Protocols for the IPMM domain are based on Mobile IP, the Session Initiation Protocol (SIP) or the like. Protocols for the ANSI-41 domain are based on IS-2000, IOS, ANSI-41 or the like.
According to a model being currently used, a single entity performs processing of a signal and a bearer in a radio network as shown in
Currently, a message that a mobile station sends to request a connection is transmitted to an MSC (MSC=mobile switching center) via a BSC (BSC=base station controller) according to IS-2000. A currently-operating BSC includes one entity for controlling a call-related signal and a bearer of user data and for providing a path.
As a currently operating network evolves into an ALL IP network, it is required to control and manage a new service and new user data. To do so, a core network is classified into the ANSI-41 domain for the existing service and the IPMM (IP multi-media) domain. The IPMM domain provides the new service and an internet-based service.
Accordingly, it is required to configure the BSC to include a signal-related entity and a bearer related entity to process the signal and the bearer separately.
It is an object of the present invention to provide a method for separating and processing a signal and a bearer in an ALL IP radio access network and computer-readable recording media storing instructions for performing the method to perform a flexible configuration of a radio network based on IP.
In accordance with an aspect of the present invention, there is provided a method for processing a signal and a bearer separately in an ALL IP network system including one or more mobile stations, one or more radio networks and one or more core networks, the method including the steps of: transmitting a service request message from a mobile station to a radio network; at the radio network, determining whether a circuit-related service or a packet-related service is requested; if the circuit-related service is requested: (i) transmitting a CM service request message to a mobile switching center (MSC) server, (ii) receiving a service request acknowledgement message from the MSC server, and (iii) assigning a bearer in response to the service request acknowledgement message; and if the packet-related service is requested: (i)transmitting the service request message from the radio network to a core network without processing the service request message; (ii) at the core network, processing the service request message and transmitting an assignment request to the radio network, the assignment request requesting that the radio network assign a bearer for user data; and (iii) assigning the bearer in response to the assignment request.
Other objects and aspects of the invention will become apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
As shown in
Referring to
At the step S10, a service request of a user is received in a message form from a mobile station.
At the step S40, the MSC receives and processes the CM service request message and then transmits a CM service request Ack message to the RNCS.
At the step S90, after receiving the bearer assignment request message from the RNCS, the RBF assigns the bearer.
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Feb 25 2009 | UTSTARCOM KOREA LTD AND UTSTARCOM, INC | HYUNDAI SYSCOMM, INC | RELEASE OF SECURITY INTEREST | 022783 | /0187 | |
Jun 09 2009 | UTStarcom Korea Limited | Yamazaki Holdings, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 022917 | /0154 |
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