CN101047950A - Method for allocating default load in 3GPP evolution network - Google Patents
Method for allocating default load in 3GPP evolution network Download PDFInfo
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Abstract
This invention provides a method for configuring default loading in 3GPP evolution network including: when a user terminal is adhered to a network, a core of an evolution network sets up a default signaling loading meeting IMS signaling transmission for user terminals according to the default QoS parameter information of the received IP loading, in which, a network terminal can set up necessary signaling loading or signaling and background loading at the same time.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method for configuring a default bearer in a 3GPP evolved network.
Background
The 3GPP (third generation partnership project) is a 3G technical specification organization, and aims to research and develop 3G standards based on an evolved GSM (global system for mobile communications) core network, i.e., standards such as WCDMA (wideband code division multiple access), TD-SCDMA (time division-synchronous code division multiple access), EDGE (enhanced data rates for GSM evolution). The china group of wireless communication standards joined the 3GPP in 1999.
In order to guarantee the competitiveness of 3GPP systems over the next 10 years and longer, and in particular to enhance the ability of 3GPP systems to handle the rapidly growing IP data traffic, 3GPP organizations are working on access technology evolution. The most important parts of this type of technological evolution include: reduced latency, higher user data rates, enhanced system capacity and coverage, and reduced overall operator cost. Furthermore, the evolved network structure is also an important index for the backward compatibility of the existing network.
The above evolved network architecture needs to satisfy several technical features as follows:
1. in the initialization stage of the terminal access network, basic IP connection needs to be established in an evolved network;
2. the evolved network architecture must minimize the latency of user data;
3. the definition of each functional module in the evolved network architecture should avoid overlapping or repetition of functions to avoid unnecessary signaling interaction and delay.
In the existing 3GPP system structure, the structure of the user data plane is as shown in fig. 1. As can be seen from fig. 1, the user data needs to be transmitted to the terminal through the GGSN (GPRS gateway support point), the SGSN (GPRS service support point), and the UTRAN (universal terrestrial radio access network), so that the generated delay far exceeds the delay required by the evolved network, and therefore, the simplification of the original 3GPP network structure is one of the key points of network evolution.
In addition, in the existing 3GPP system, the GPRS attach procedure of the user terminal and the activation procedure of the PDP (packet data protocol) context are two separate procedures. After the user terminal is started, a GPRS attachment process is carried out, and the GPRS attachment process is mainly an authentication process for the user terminal. The user terminal is not IP connected after attaching GPRS before activating the PDP context. Only when the user terminal selects a network access point and initiates a PDP context activation request to the GGSN via the SGSN, the user terminal is provided with an IP address and corresponding configuration parameters. This will cause the delay of the user terminal initiating the service to be longer, and the delay requirement of the evolution network cannot be met, so the evolution network structure needs a new registration process to meet the delay requirement.
A schematic diagram of the current 3GPP evolved network architecture is shown in fig. 2. As shown in fig. 2, a core network of a 3GPP evolved network mainly includes three logical function modules, namely, an MME (mobility management entity), an UPE (user plane entity), and an InterAS Anchor (user plane Anchor between different access systems), where the MME is a mobility management module, and is responsible for mobility management of a control plane, including user context and mobility state management, allocating a user temporary identity, a security function, and the like, and corresponds to a control plane portion of an SGSN (GPRS service support point) in a current UMTS system; UPE is user plane entity, responsible for initiating paging for downlink data in idle state, managing and storing IP bearing parameter and routing information in network, etc., it is for data plane part of SGSN and GGSN in current UMTS system; the Inter ASAnchor then acts as the user plane anchor point between different access systems.
In the prior art, a network attach procedure of a ue in the above evolved network architecture is a network attach procedure in TR23.882, in which the ue must be permanently online, that is, a default IP bearer needs to be established when the ue performs network attachment. The specific processing steps of the flow are shown in fig. 3. The method comprises the following steps:
step 31, after discovering the 3GPP evolved network, the user terminal first initiates an access process of the 3GPP evolved network. If there are multiple shared core networks, the user terminal selects the corresponding core network.
Step 32, the user terminal sends an attach request message to the MME/UPE of the 3GPP evolved network, where the attach request message includes information (e.g. temporary identifier, etc.) that the user terminal has previously registered. If the user terminal does not have previous registration information, its permanent identification information is included in the attach request message.
When there is network sharing, the attach request message further includes core network selected by the ue or previous MME/UPE information.
In practical applications, the attach request message may further include some information of the default IP bearer that needs to be established, such as: IP address or APN (access point name) selected by the user.
Step 33, after receiving the attach request message sent by the user terminal, the MME/UPE of the 3GPP evolved network acquires the previous registration information of the user terminal included therein, and sends the acquired registration information to the previous MME/UPE of the user terminal to retrieve the information of the user terminal.
Step 34, the former MME/UPE of the user terminal sends the information of the user terminal (for example, the permanent identification of the user terminal) to the MME/UPE of the 3GPP evolution network.
And step 35, the user terminal authenticates on the MME/UPE of the 3GPP evolution network.
Step 36, the MME/UPE of the 3GPP evolved network registers the serving MME/UPE to the HSS (home subscriber server) to become the user terminal.
Step 37, the previous MME/UPE of the user terminal deletes or notes the information of the user terminal as not present.
Step 38, the HSS confirms the registration of the new MME/UPE. And sending the authorized subscription information loaded by the default IP and the related strategy and charging control information to the MME/UPE of the 3GPP evolution network.
And step 39, the MME/UPE of the 3GPP evolved network selects an InterAS Anchor for the user equipment, where a specific selection mechanism is not determined. The user terminal is configured with an IP address determined by user preference or subscription data or policies of the HPLMN (home public land mobile network) or VPLMN (visited public land mobile network).
Step 310, Inter AS Anchor performs IP layer configuration, user plane establishment and applies the above default policy and charging procedures according to the configured user IP address. It has not yet been decided whether the establishment of the user plane is initiated by the user terminal or by the MME/UPE.
Step 311, the MME/UPE of the 3GPP evolved network provides the default QoS configuration (e.g., upper limit of data rate) of the bearer to the RAN of the evolved network. Whether the QoS configuration requires an addition of a trigger mechanism is not determined (e.g., sending uplink or downlink data).
Step 312, the MME/UPE of the 3GPP evolved network sends a message to the ue to accept the ue attachment and allocate a temporary identifier to the ue, and sends the configured IP address of the ue to the ue. When the user terminal is in a roaming scenario, roaming restrictions may be checked, and if the roaming restrictions are violated, the attach request of the user terminal may be rejected.
Step 313, the user terminal confirms that the network attachment is successful.
The disadvantages of the network attach procedure in TR23.882 of the above prior art are: the flow has no description on how the network side allocates the default IP bearer for the ue and how to configure the default QoS parameters for the default IP bearer, for example, which of the four QoS classes of the current UMTS network is configured for the default bearer, and no description is made on how to configure the default IP bearer. This may result in the inability to establish the required default bearer.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a method for configuring a default bearer in a 3GPP evolved network, so that a user equipment can establish a required signaling bearer or establish a signaling bearer and a background class bearer simultaneously after completing a network attach procedure.
The purpose of the invention is realized by the following technical scheme:
a method for configuring a default bearer in a 3GPP evolved network includes:
in the process of network attachment of the user terminal, the core network of the evolution network establishes a default signaling bearer meeting the IP multimedia sub-network IMS signaling transmission for the user terminal according to the received default QoS parameter information of the default IP bearer.
The method specifically comprises the following steps:
in the process of network attachment of a user terminal, a core network of an evolution network establishes a default signaling bearer meeting IMS signaling transmission for the user terminal according to the received default QoS parameter information of the default IP bearer;
or,
in the process of network attachment of the user terminal, the core network of the evolution network simultaneously establishes a default signaling bearer and a background class bearer which meet IMS signaling transmission for the user terminal according to the received default QoS parameter information of the default IP bearer.
The method comprises the following steps:
A. a Home Subscriber Server (HSS) sends authorized default QoS parameter information loaded by a default IP to a mobility management entity/user plane entity (MME/UPE) of the 3GPP evolution network, and the MME/UPE sends the default QoS parameter information to a user plane Anchor point (inter AS Anchor) between different selected access systems;
B. the Inter AS Anchor establishes a default signaling bearer meeting IMS signaling transmission or simultaneously establishes a default signaling bearer meeting IMS signaling transmission and a background class bearer for the user terminal according to the received default QoS parameter information, and sends the information of the established default bearer to the user terminal through MME/UPE.
The step A specifically comprises the following steps:
a1, after confirming the registration of MME/UPE, HSS sends the default QoS parameter information of authorized default IP load to MME/UPE, the default QoS parameter information contains the QoS parameter information of IMS signaling transmission alone or contains the QoS parameter information of IMS signaling transmission and the QoS parameter information of background service at the same time;
a2, the MME/UPE sends a request message for allocating IP address for the user terminal to the selected Inter AS Anchor, and the request message carries the received default QoS parameter information.
The QoS parameter information comprises QoS category information.
The QoS parameter information comprises bandwidth and/or priority information.
The step B specifically comprises the following steps:
b1, the Inter AS Anchor establishes a default signaling load meeting the IMS signaling transmission or establishes a default signaling load meeting the IMS signaling transmission and a background load at the same time for the user terminal according to the received default QoS parameter information, and executes a proxy call server control function P-CSCF discovery mechanism while establishing the signaling load;
b2, the Inter AS Anchor returns an IP address allocation response message to the MME/UPE, and the IP address allocation response message carries the allocated IP address, the established default bearing information and the discovered IP address information of the P-CSCF;
b3, the MME/UPE sends the message of accepting the attachment of the user terminal to the user terminal and allocates the temporary identifier for the user terminal, and then sends the IP address of the allocated user terminal, the information of the established default bearer and the IP address information of the P-CSCF to the user terminal.
The step B1 specifically includes:
when the default QoS parameter information received by the Inter AS Anchor independently contains QoS parameter information transmitted by IMS signaling, the Inter AS Anchor establishes a default signaling bearer meeting the IMS signaling transmission for the user terminal, and executes a proxy call server control function P-CSCF discovery mechanism to discover a P-CSCF while establishing the default signaling bearer;
when the default QoS parameter information received by the Inter AS Anchor simultaneously contains QoS parameter information transmitted by IMS signaling and QoS parameter information of background service, the Inter AS Anchor simultaneously establishes a default signaling bearer and a background bearer which meet the IMS signaling transmission for the user terminal, and executes a proxy call server control function P-CSCF discovery mechanism to discover a P-CSCF while establishing the default signaling bearer.
The step B2 further includes:
and the Inter AS Anchor informs the signaling bearing information established by a Policy and Charging Rule Function (PCRF) of the 3GPP evolution network.
The step B3 further includes:
and the MME/UPE informs a Radio Access Network (RAN) of the 3GPP evolution network of the default QoS parameters and the established information of the default load, and the RAN performs corresponding configuration on the established default load.
The MME/UPE and the Inter AS Anchor in the 3GPP evolution network architecture are mutually separated, or the MME/UPE and the Inter AS Anchor are mutually combined, or the MME, the UPE and the Inter AS Anchor are mutually separated.
It can be seen from the above technical solutions provided by the present invention that, by improving the network attach procedure in the existing TR23.882, a mechanism for how to allocate QoS parameters of a default bearer and how to establish the default bearer is added in the procedure. Therefore, the network attachment process of the 3GPP evolution network is more perfect. The user terminal can establish the required signaling load or establish the signaling load and the background load at the same time after completing the network attachment process, and can achieve the permanent online required by the evolution network.
The invention can make the user terminal respond to the SIP (initial session protocol) call of other user terminals quickly without changing the default load, establish the voice service based on VolP, and make the user terminal complete some background services at the same time.
Drawings
Fig. 1 is a schematic structural diagram of a user data plane in a conventional 3GPP system structure;
FIG. 2 is a diagram illustrating a conventional 3GPP evolved network architecture;
fig. 3 is a schematic diagram of a network attach procedure in TR23.882 in the prior art;
fig. 4 is a process flow diagram of an embodiment of the method of the present invention.
Detailed Description
The invention provides a method for configuring default load in a 3GPP evolution network, which has the core that: in the process of network attachment of a user terminal in a 3GPP evolution network, a HSS sends QoS parameter information of a default IP bearer to an MME/UPE of the 3GPP evolution network, and a core network of the 3GPP evolution network establishes a default signaling bearer meeting IMS signaling transmission for the user terminal or simultaneously establishes a default signaling bearer meeting the IMS signaling transmission and a background class bearer.
The method of the present invention improves the network attachment process in the existing TR23.882, and adds a mechanism for how to allocate QoS parameters of a default bearer and how to establish the default bearer in the process.
The method of the present invention is described in detail below with reference to the accompanying drawings, and the processing flow of the embodiment of the method of the present invention is shown in fig. 4. According to the processing flow shown in fig. 4, the user terminal may establish a default signaling bearer satisfying the IMS signaling transmission or establish a default signaling bearer satisfying the IMS signaling transmission and a background class bearer simultaneously in the network attach process of the 3GPP evolved network.
According to the processing flow shown in fig. 4, the specific processing procedure for establishing a default signaling bearer satisfying IMS signaling transmission in the network attach procedure of the 3GPP evolved network by the user equipment includes the following steps:
step 41, after discovering the 3GPP evolved network, the user terminal first initiates an access process of the 3GPP evolved network. If there are multiple shared core networks, the user terminal selects the corresponding core network.
Step 42, the user terminal sends an attach request message to the MME/UPE of the 3GPP evolved network, where the attach request message includes information (e.g. temporary identity, etc.) that the user terminal has previously registered. If the user terminal does not have previous registration information, its permanent identification information is included in the attach request message.
When there is network sharing, the attach request message further includes core network selected by the ue or previous MME/UPE information.
In practical applications, the attach request message may further include some information of the default IP bearer that needs to be established, such as: IP address or APN (access point) selected by the user.
Step 43, after receiving the attach request message sent by the user terminal, the MME/UPE of the 3GPP evolved network acquires the previous registration information of the user terminal included therein, and sends the acquired registration information to the previous MME/UPE of the user terminal to retrieve the information of the user terminal.
Step 44, the former MME/UPE of the ue sends the information of the ue (e.g. the permanent identifier of the ue) to the MME/UPE of the 3GPP evolved network.
And step 45, the user terminal authenticates on the MME/UPE of the 3GPP evolution network.
Step 46, the MME/UPE of the 3GPP evolved network registers the serving MME/UPE of the user terminal to HSS (home subscriber server).
Step 47, the previous MME/UPE of the user terminal deletes or notes the information of the user terminal as not present.
And step 48, the HSS confirms the registration of the MME/UPE of the 3GPP evolution network. And sending the authorized subscription information loaded by the default IP and the related strategy and charging control information to the MME/UPE of the 3GPP evolution network.
The subscription information includes default QoS parameter information of a default IP bearer, and in this embodiment, the default IP bearer is a signaling bearer satisfying IMS signaling transmission, and therefore, the default QoS parameter is displayed as a QoS parameter satisfying SIP signaling (session initiation protocol) signaling transmission requirements. The QoS class in the QoS parameter information is a QoS class satisfying SIP signaling transmission, and the QoS class carried by the signaling is higher than that of background class traffic (such as Internet access, FTP).
The QoS parameter information further includes bandwidth and/or priority information.
And step 49, selecting an inter as Anchor for the user equipment by the MME/UPE of the 3GPP evolution network, wherein a specific selection mechanism is not determined.
Step 410, the MME/UPE of the 3GPP evolved network sends a request message for allocating an IP address to the selected Inter asaAnchor, and reports related information such as a default QoS parameter of a default signaling bearer obtained from the HSS in the request message.
In step 411, the Inter AS Anchor allocates an IP address to the ue, where the IP address is determined by user preference or subscription data or policy of HPLMN (home public land mobile network) or VPLMN (visited public land mobile network).
Meanwhile, the Inter AS Anchor establishes a default signaling bearer for the user terminal according to the related information such AS the default QoS parameter reported by the MME/UPE, and the Inter AS Anchor also discovers a P-CSCF (proxy call server control function) through a P-CSCF discovery mechanism because the default QoS parameter is displayed AS the bearer required by the SIP signaling.
Step 412, Inter AS Anchor informs PCRF (policy and charging rules function) of the information of the established signaling bearer, which is an optional step.
Step 413, the Inter AS Anchor returns an IP allocation response message to the MME/UPE of the 3GPP evolved network, where the IP allocation response message carries the allocated IP address, the established default bearer information, and the discovered IP address information of the P-CSCF.
Step 414, the MME/UPE of the 3GPP evolved network notifies the RAN of the evolved network of the default QoS parameters and the established information of the default signaling bearer, and the RAN performs corresponding configuration on the established default bearer.
Step 415, the MME/UPE of the 3GPP evolved network sends a message for accepting the attachment of the user equipment to the user equipment and allocates a temporary identifier to the user equipment, and sends the configured IP address of the user equipment, the established information of the default bearer, and the IP address information of the P-CSCF to the user equipment.
When the user terminal is in a roaming scenario, the roaming restrictions are checked and if the roaming restrictions are violated, the attach request of the user terminal is rejected.
Step 416, the terminal confirms that the network attachment is successful.
According to the processing flow shown in fig. 4, the specific processing procedure of simultaneously establishing a default signaling bearer satisfying IMS signaling transmission and a background class bearer without QoS class requirement during the network attach procedure of the 3GPP evolved network by the user equipment includes the following steps:
step 41, after discovering the 3GPP evolved network, the user terminal first initiates an access process of the 3GPP evolved network. If there are multiple shared core networks, the user terminal selects the corresponding core network.
Step 42, the user terminal sends an attach request message to the MME/UPE of the 3GPP evolved network, where the attach request message includes information (e.g. temporary identity, etc.) that the user terminal has previously registered. If the user terminal does not have previous registration information, its permanent identification information is included in the attach request message.
When there is network sharing, the attach request message further includes core network selected by the ue or previous MME/UPE information.
In practical applications, the attach request message may further include some information of the default IP bearer that needs to be established, such as: IP address or APN (access point) selected by the user.
Step 43, after receiving the attach request message sent by the user terminal, the MME/UPE of the 3GPP evolved network acquires the previous registration information of the user terminal included therein, and sends the acquired registration information to the previous MME/UPE of the user terminal to retrieve the information of the user terminal.
Step 44, the former MME/UPE of the ue sends the information of the ue (e.g. the permanent identifier of the ue) to the MME/UPE of the 3GPP evolved network.
And step 45, the user terminal authenticates on the MME/UPE of the 3GPP evolution network.
Step 46, the MME/UPE of the 3GPP evolved network registers the serving MME/UPE of the user terminal to HSS (home subscriber server).
Step 47, the previous MME/UPE of the user terminal deletes or notes the information of the user terminal as not present.
And step 48, the HSS confirms the registration of the MME/UPE of the 3GPP evolution network. And sending the subscription information of the authorized default IP bearer and the related strategy and charging control information to the new MME/UPE.
The subscription information comprises default QoS parameter information of default load, and the QoS categories of the default QoS parameter comprise two QoS categories, wherein one QoS category is a QoS category meeting SIP signaling transmission, and the other QoS category is a QoS category meeting background services. The QoS class of the signaling bearer is higher than that of the background class traffic.
The QoS parameter information further includes bandwidth and/or priority information.
And step 49, selecting an inter as Anchor for the user equipment by the MME/UPE of the 3GPP evolution network, wherein a specific selection mechanism is not determined.
Step 410, the MME/UPE of the 3GPP evolved network sends a request message for allocating an IP address to the selected Inter asaAnchor, and reports related information such as a default QoS parameter of a default bearer obtained from the HSS in the request message.
In step 411, the Inter AS Anchor allocates an IP address to the ue, where the IP address is determined by user preference or subscription data or policy of HPLMN (home public land mobile network) or VPLMN (visited public land mobile network).
Meanwhile, the Inter AS Anchor establishes two default signaling bearers for the user terminal according to the relevant information such AS the default QoS parameters reported by the MME/UPE, wherein one signaling bearer meets the QoS class of SIP signaling transmission, and the other signaling bearer meets the QoS class of background services. The Inter AS Anchor establishes a signaling bearer and simultaneously discovers a P-CSCF through a P-CSCF discovery mechanism.
Step 412, the Inter AS Anchor notifies the PCRF of the information of the established signaling bearer, which is an optional step.
Step 413, the Inter AS Anchor returns an IP allocation response message to the new MME/UPE, where the IP allocation response message carries the allocated IP address, the information of the two established default bearers, and the discovered IP address information of the P-CSCF.
Step 414, the MME/UPE of the 3GPP evolved network notifies the RAN of the evolved network of the default QoS parameters and the established information of the default bearer, and the RAN performs corresponding configuration on the established default bearer.
Step 415, the MME/UPE of the 3GPP evolved network sends a message for accepting the attachment of the user equipment to the user equipment and allocates a temporary identifier to the user equipment, and sends the configured IP address of the user equipment, the established information of the default bearer, and the IP address information of the P-CSCF to the user equipment.
When the user terminal is in a roaming scenario, roaming restrictions may be checked, and if the roaming restrictions are violated, the attach request of the user terminal may be rejected.
Step 416, the terminal confirms that the network attachment is successful.
In the processing flow of the above embodiment of the present invention, a scheme of separating an MME/UPE from an Inter AS Anchor is adopted in the 3GPP evolved network architecture, but other schemes, such AS: the combination of MME/UPE and Inter AS Anchor, or the separation scheme of MME, UPE and Inter AS Anchor, is also applicable to the processing flow of the above embodiment of the present invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A method for configuring a default bearer in a 3GPP evolved network, comprising:
in the process of network attachment of the user terminal, the core network of the evolution network establishes a default signaling bearer meeting the IP multimedia sub-network IMS signaling transmission for the user terminal according to the received default QoS parameter information of the default IP bearer.
2. The method according to claim 1, comprising in particular:
in the process of network attachment of a user terminal, a core network of an evolution network establishes a default signaling bearer meeting IMS signaling transmission for the user terminal according to the received default QoS parameter information of the default IP bearer;
or,
in the process of network attachment of the user terminal, the core network of the evolution network simultaneously establishes a default signaling bearer and a background class bearer which meet IMS signaling transmission for the user terminal according to the received default QoS parameter information of the default IP bearer.
3. The method according to claim 2, comprising the steps of:
A. a Home Subscriber Server (HSS) sends authorized default QoS parameter information loaded by a default IP to a mobility management entity/user plane entity (MME/UPE) of the 3GPP evolution network, and the MME/UPE sends the default QoS parameter information to a user plane Anchor point (inter AS Anchor) between different selected access systems;
B. the Inter AS Anchor establishes a default signaling bearer meeting IMS signaling transmission or simultaneously establishes a default signaling bearer meeting IMS signaling transmission and a background class bearer for the user terminal according to the received default QoS parameter information, and sends the information of the established default bearer to the user terminal through MME/UPE.
4. The method according to claim 3, wherein the step A specifically comprises:
a1, after confirming the registration of MME/UPE, HSS sends the default QoS parameter information of authorized default IP load to MME/UPE, the default QoS parameter information contains the QoS parameter information of IMS signaling transmission alone or contains the QoS parameter information of IMS signaling transmission and the QoS parameter information of background service at the same time;
a2, the MME/UPE sends a request message for allocating IP address for the user terminal to the selected Inter AS Anchor, and the request message carries the received default QoS parameter information.
5. The method of claim 3, wherein the QoS parameter information comprises QoS class information.
6. The method of claim 5, wherein the QoS parameter information comprises bandwidth and/or priority information.
7. The method according to claim 3, 4, 5 or 6, wherein the step B specifically comprises:
b1, the Inter AS Anchor establishes a default signaling load meeting the IMS signaling transmission or establishes a default signaling load meeting the IMS signaling transmission and a background load at the same time for the user terminal according to the received default QoS parameter information, and executes a proxy call server control function P-CSCF discovery mechanism while establishing the signaling load;
b2, the Inter AS Anchor returns an IP address allocation response message to the MME/UPE, and the IP address allocation response message carries the allocated IP address, the established default bearing information and the discovered IP address information of the P-CSCF;
b3, the MME/UPE sends the message of accepting the attachment of the user terminal to the user terminal and allocates the temporary identifier for the user terminal, and then sends the IP address of the allocated user terminal, the information of the established default bearer and the IP address information of the P-CSCF to the user terminal.
8. The method according to claim 7, wherein the step B1 specifically comprises:
when the default QoS parameter information received by the Inter AS Anchor independently contains QoS parameter information transmitted by IMS signaling, the Inter AS Anchor establishes a default signaling bearer meeting the IMS signaling transmission for the user terminal, and executes a proxy call server control function P-CSCF discovery mechanism to discover a P-CSCF while establishing the default signaling bearer;
when the default QoS parameter information received by the Inter AS Anchor simultaneously contains QoS parameter information transmitted by IMS signaling and QoS parameter information of background service, the Inter AS Anchor simultaneously establishes a default signaling bearer and a background bearer which meet the IMS signaling transmission for the user terminal, and executes a proxy call server control function P-CSCF discovery mechanism to discover a P-CSCF while establishing the default signaling bearer.
9. The method according to claim 7, wherein said step B2 further comprises:
and the Inter AS Anchor informs the signaling bearing information established by a Policy and Charging Rule Function (PCRF) of the 3GPP evolution network.
10. The method according to claim 7, wherein said step B3 further comprises:
and the MME/UPE informs a Radio Access Network (RAN) of the 3GPP evolution network of the default QoS parameters and the established information of the default load, and the RAN performs corresponding configuration on the established default load.
11. The method of claim 1, wherein the MME/UPE and the Inter AS Anchor in the 3GPP evolved network architecture are separated from each other or the MME/UPE and the Inter asaanchor are combined with each other or the MME, UPE and the Inter AS Anchor are separated from each other.
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| CN200610065931A CN101047950B (en) | 2006-03-27 | 2006-03-27 | Method for allocating default load in 3GPP evolution network |
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