WO2007022729A1

WO2007022729A1 - A method and system for increasing the resource using efficiency in communication network

Info

Publication number: WO2007022729A1
Application number: PCT/CN2006/002170
Authority: WO
Inventors: Yan Zhou
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2005-08-24
Filing date: 2006-08-24
Publication date: 2007-03-01
Also published as: CN1801808A

Abstract

A method for increasing the resource using efficiency in communication network, includes: (a)the first entity sends a request message involving the first resource parameter to request establishing service connection; (b)if the second entity determines the own resource satisfies the require of the first resource parameter in the request message, it sends back a response message to the first entity in order to accept the request; if the second entity determines the own resource does not satisfy the require of the first resource parameter in the request message, it sends back a response message involving negotiated resource parameter to the first entity. A system for increasing the resource using efficiency in communication network is provided. The invention realizes the service quality after feedback degrading or the other updating by inserting the negotiated resource parameter to the response message, when the service quality can not be ensured integrallty, so that it fully uses the resource and accelerates the negotiation process.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and more particularly to a method and system for improving resource utilization efficiency in a communication network.

BACKGROUND In most existing communication networks, in order to ensure fast and efficient establishment of service connections between network entities, a negotiation mechanism is required, that is, when establishing a communication service, the requesting entity first sends a request message to the requested entity. The request message includes a parameter for establishing a resource required by the communication service, and if the resource owned by the requesting entity satisfies the resource required by the request message, returns a response message to the requesting entity, accepts the request, and then the requester and the requester The requested entity continues to establish a communication service; if the resource owned by the requesting entity does not satisfy the requirement in the request message, a response message is returned to the requesting entity, the request is rejected, and the requesting entity terminates the process of establishing a communication connection according to the message. And release the resources occupied by the requesting entity to establish a communication connection. The above-mentioned requester entity and the requested party entity refer to logical entities in the network that participate in negotiation to establish a service connection.

In another case, after receiving the response message carrying the rejection request returned by the requested entity, the requesting entity reduces the quality of service (QoS) level of the communication service, and sends a request carrying the reduced resource parameter to the requested entity. The message, the requested entity returns a response message rejected or accepted to the requesting entity according to its own resources. This is repeated several times until the establishment of the communication service or the quality of service level cannot be reduced.

However, in the above-mentioned service quality negotiation process, the former cannot make full use of resources due to the simple termination of the business process, while the latter is cumbersome in process and reduces the efficiency of resource utilization. Summary of the invention

The technical problem to be solved by the present invention is to provide a method and system for improving resource utilization efficiency in a communication network in view of the problem of low resource utilization efficiency of the quality of service negotiation process in the above-mentioned communication network of the prior art.

The technical solution adopted by the present invention to solve the technical problem is: constructing a communication network A method of high resource utilization efficiency, including the following steps:

(a) the first entity sends a request message carrying the first resource parameter to the second entity to request to establish a service connection;

(b) if the second entity determines that the resource meets the requirement of the first resource parameter in the request message, returns a response message accepting the request to the first entity; if the second entity determines that the resource does not satisfy the first resource in the request message The parameter request sends a response message carrying the second resource parameter to the first entity.

In the foregoing method for improving resource utilization efficiency, the method further includes the following steps: if the first entity determines that the service quality of the service satisfies the second resource parameter, establishing a service connection; otherwise, starting the release of the service connection.

The first entity sends a request message carrying the first resource parameter to the second entity according to the following steps:

(1) the first entity sends a request message carrying the first resource parameter to the intermediate entity; 2) after the intermediate entity receives the request message, if the resource of the intermediate entity satisfies the requirement of the first resource parameter in the request message, Passing the request message to the second entity; otherwise modifying the first resource parameter in the request message and transmitting the request message to the second entity.

The first entity may also send a request message carrying the first resource parameter to the second entity according to the following steps:

(1) the first entity sends a request message carrying the first resource parameter to the intermediate entity; 2) after the intermediate entity receives the request message, if the resource of the intermediate entity satisfies the requirement of the first resource parameter in the request message, Passing the request message to the second entity; otherwise the intermediate entity returns a response message with the first resource parameter to the first entity, the first entity modifying the first resource parameter according to the second resource parameter, and returning to step (al) or starting the service The release of the connection.

In the above method for improving resource utilization efficiency of the present invention, the first entity and the second entity are connected to each other through a WiMax network.

In the above method for improving resource utilization efficiency, the first entity and the second entity that are mutually connected by the WiMax network are one of a policy entity, an application entity, an access service network gateway, a base station, and a mobile user terminal.

The present invention also provides a system for improving resource utilization efficiency in a communication network, including multiple channels. An entity that is connected to each other by a communication network, each entity includes a resource management module, and the resource management module includes:

a message transmitting unit, configured to send or receive a request message carrying a resource parameter, and send or receive a response message to accept the request;

The first determining unit is configured to determine whether it can meet the requirement of carrying the resource parameter in the received message, and if the resource cannot meet the resource parameter in the connection request message sent by the peer entity connected thereto, A parameter indicating that the local entity can provide resources is added to the response message of the end entity.

In the system for improving resource utilization efficiency in the foregoing communication network of the present invention, the resource management module further includes: a second determining unit, configured to determine, according to resource parameters in the response message, whether the quality of service of the communication connection can be reduced, and

The process delete module unit is configured to delete the communication connection when the communication connection service cannot be reduced.

In the system for improving resource utilization efficiency in the above communication network of the present invention, the communication network is a WiMax network.

In the system for improving resource utilization efficiency in the above communication network of the present invention, the entity is one of a policy entity, an application entity, an access service network gateway, a base station, and a mobile user terminal.

The method and system for improving resource utilization efficiency in the communication network of the present invention achieves degradation of feedback or other changed service quality when the quality of service cannot be fully guaranteed by adding the negotiated resource parameters in the response message. This allows you to make the most of your resources and accelerate the negotiation process.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. FIG. 1 is a schematic diagram of a WiMax network architecture;

2 is a flow chart of negotiation between two parties according to the first embodiment of the present invention;

3 is a flow chart of negotiation between multiple parties according to a second embodiment of the present invention;

4 is a flow chart of deleting a connection between multiple parties according to a second embodiment of the present invention; and FIG. 5 is a block diagram of a resource management module. 1 shows the architecture of a WiMax network, which is a new communication network standard conforming to the IEEE 802.16e standard. The WiMax network includes a Mobile Subscriber Station (MSS), which can also be called a MSS as a mobile user equipment or a client terminal, and the user uses the device to access the WiMax network. Also included is one or more Access Service Network (ASN) as a Network Access Point (NAP), a Connectivity Service Network (CSN) connected to the access service network, and Another connection service network that is connected to the connection service network. The access service network is a set of network functions for providing wireless access services to WiMax terminals, including a base station (BaseStation, BS) and an access service network gate (ASN-GW), wherein the former is provided The air interface access function is the access device of the network; the latter is used to aggregate the data uploaded by the base station and access the core network, which belongs to the network convergence layer.

The method for improving the resource utilization efficiency of the present invention will be described below in the specific process of establishing a service connection. The following first entity, the second entity, and the intermediate entity are the logical entities in the WiMax network that participate in the negotiation to establish a communication connection, which may be a PF (Policy Function), an AF (Application Function), Correspondence between ASN GW (Access Service Network Gate Way), BS (Base Station), MSS (Mobile Subscriber Station), other logical entities, etc. under different background flows.

To implement the method for improving resource utilization efficiency of the present invention, a resource management module needs to be set in each entity. Referring to FIG. 5, a message sending unit 52 is configured to send or receive a request message carrying a resource parameter, and send or Receiving a response message of whether to accept the request; and, the first determining unit 51 is configured to determine whether the user can meet the requirement of carrying the resource parameter in the received message, and the first determining unit receives the corresponding information from the message sending unit 52. The message is then judged. If the resource parameter in the connection request message sent by the peer entity connected to the peer entity is not satisfied, the parameter that indicates that the local entity can provide the resource is added to the response message sent to the peer entity.

In this way, the resources of the resource management module in the local entity cannot satisfy the innovation sent by the peer entity. When the resource parameter in the communication connection request message is set, a parameter indicating that the local entity can provide the resource is added to the response message sent to the peer entity.

In an embodiment of the present invention, the resource management module further includes a second determining unit 53 for determining whether the communication connection service shield amount can be reduced according to the resource parameter in the response message, and the quality of the service connection cannot be lowered in the communication connection. The process deletion module unit 54 of the communication connection is deleted. Thus, each network entity can determine whether the quality of service (QoS) of the communication connection can be degraded based on the resource parameters in the response message, and delete the communication connection when the determination module confirms that the quality of the communication connection cannot be degraded.

As shown in FIG. 2, it is a flowchart of the negotiation between the two parties in the first embodiment of the present invention. In order to establish a service connection between the first entity 21 and the second entity 23 (the first entity 21 and the second entity 23 are directly connected in this embodiment), the first entity 21 as a service connection requester is first connected as a service. The second entity 23 of the requested party sends a service connection creation request message, where the creation request message includes a parameter that is a resource required to establish a service connection, that is, a first resource parameter.

The second entity 23 that receives the creation request message reads the first resource parameter in the request message, and determines whether the reserved resource of the request satisfies the requirement of the first resource parameter. If the reserved resource of the second entity 23 satisfies the requirement of the resource parameter, the second entity 23 generates a create response message and returns the message to the first entity 21, the create response message containing the parameter accepting the create request. If the reserved resource of the second entity 23 does not meet the requirement of the resource parameter, the second entity 23 also generates a create response message and returns the message to the first entity 21, where the create response message includes the negotiated resource parameter That is, the second resource parameter, where the second resource parameter is a parameter of a resource that the second entity 23 can provide.

If the response message received by the first entity 21 carries the parameter accepting the request, the first entity 21 continues to perform the subsequent process of creating a service connection. If the response message received by the first entity 21 carries the negotiated resource parameter, the first entity 21 determines whether the quality of service level of the service connection currently being created can be degraded, and the degraded occupied resource can satisfy the negotiated resource. parameter. If the service connection accepts the degraded quality of service, the first entity 21 sends a create request acknowledgement message, notifying each entity to set the resource according to the negotiated parameter, or resending the creation request with the negotiated resource parameter to the second entity 23. Message through request/response mechanism The entity should be configured to carry out the process of creating a service connection according to the parameters of the negotiation, and continue to perform the process of creating a service connection; if the service connection does not accept the degraded service quality, the first entity 21 initiates the deletion of the service connection and performs The process of occupying resources (not shown in the figure). Or, the first entity 21 determines that the quality of service level of the service connection that is currently being created can meet the requirement of the negotiated resource parameter, and the first entity 21 sends a create request acknowledgement message, and notifies each entity to set the resource according to the negotiated parameter, or The creation request message with the negotiated resource parameters is resent to the second entity 23.

The process of deleting the service connection and releasing the occupied resource is as follows: The first entity 21 sends a delete request message to the second entity 23, the second entity 23 releases the current service connection occupied resource according to the delete request, and then returns a delete response message to the first entity 21. .

As shown in FIG. 3, it is a flowchart of the negotiation between the parties in the second embodiment of the present invention. In the present embodiment, the first entity 31 of the requesting party is connected to the second entity 33 of the debt-seeker via the intermediate entity 32. Similarly, the first entity 31 sends a service connection creation request message to the intermediate entity 32, where the creation request message includes a parameter for establishing a resource required for the service connection, that is, the first resource parameter.

The intermediate entity 32 determines whether the reserved resource of itself satisfies the requirement of establishing resources required for the current service connection (based on the first resource parameter). If the intermediate entity 32 satisfies the resource requirements of the first resource parameter, the intermediate entity 32 passes the request message to the second entity 33 of the back end. The second entity 33 determines, according to its reserved resource status, whether the quality of service requirement of the current service connection is met, that is, the requirement of the first resource parameter, and if yes, feedbacks the response message of the accepted request to the intermediate entity 32, and via the intermediate entity 32 returns to the first entity 31. If the resource of the second entity 33 cannot satisfy the quality of service of the current service connection, the second entity 33 feeds back the response message with the negotiated resource parameter to the intermediate entity 32, and the intermediate entity 32 feeds back the response message to the first entity 31. .

If the intermediate entity 32 does not meet the resource requirement, modify the request message, modify the resource parameter therein to the resource requirement parameter (the negotiated resource parameter) that can be satisfied by itself, and send it to the second entity 33 (the intermediate entity directly returns the available resource to The situation of the first entity is similar to Figure 2). The second entity 33 determines whether the service shield of the current service connection is satisfied according to its reserved resource status. If yes, the second entity 33 feeds back the intermediate resource 32 with the negotiated resource parameter. The response message of the (negotiating resource parameter generated by the intermediate entity 32), the intermediate entity 32 is feeding back the response message to the first entity 31. If the resource of the second entity 33 cannot satisfy the negotiation resource parameter in the request message, the second entity 33 feeds back the response message with the further negotiated resource parameter to the intermediate entity 32, and the intermediate entity 32 feeds back the response message to the first Entity 31.

If the response message received by the first entity 31 carries the parameter accepting the request, the first entity 31 continues to perform the subsequent process of creating a service connection. If the response message received by the first entity 31 carries the negotiated resource parameter, the first entity 31 determines whether the service shield level of the service connection currently being created can be degraded, and the degraded occupied resource can satisfy the negotiated resource. Resource parameters. If the service connection accepts the degraded quality of service, the first entity 31 sends a create request acknowledgement message, notifying each entity to set the resource according to the negotiated parameter, or resending the creation request with the negotiated resource parameter to the second entity 33. The message, through the request/response mechanism (the parameter carrying the request accepting the response), notifies each entity to set the resource according to the negotiated parameter, continues the process of creating the service connection, and continues the process of creating the service connection; if the service connection does not accept the downgrade After the quality of service, the first entity 31 initiates a process of deleting the service connection and releasing the occupied resources.

As shown in FIG. 4, it is a flowchart of deleting connections between multiple parties according to the second embodiment of the present invention. First, the first entity 31 sends a delete request message to the intermediate entity 32, and the intermediate entity 32 passes the request message to the second entity 33. The second entity 33 releases the current service connection occupied resource according to the delete request, and then returns a message to the intermediate entity 32. The response message is deleted, and the intermediate entity 32 returns a delete response request to the first entity 31 after releasing the resources occupied by the current service connection.

When the intermediate entity 32 does not satisfy the resource requirement in the request message that does not satisfy the first entity 31, the response message may be directly returned to the first entity 31, where the response message includes a resource parameter that satisfies the reserved resource message of the intermediate entity 32 ( Resource parameters after negotiation). If the first entity 31 determines that the quality of service level of the service connection that is currently being created can be downgraded to meet the negotiated resource parameters, the request message for creating a service connection is regenerated (the resource parameter is the resource parameter after the first negotiation) And sent to the intermediate entity; otherwise the first entity 31 initiates the process of deleting the service connection and drying the occupied resources.

Of course, the present invention is also applicable to the case of multiple intermediate entities, in which multiple intermediate entities sequentially determine their own resources and negotiate in turn until all intermediate entities, requesting entities, and requested entities are satisfied. Resource requirements, establish a business connection; or delete and release the connection because the quality of service cannot be downgraded. The above method and system can be applied not only to WiMax networks, but also to other mobile communication systems that do not have feedback resource parameters after negotiation.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Rights request

A method for improving resource utilization efficiency in a communication network, comprising the steps of:

2. The method for improving resource utilization efficiency in a communication network according to claim 1, further comprising the steps of:

And if the first entity determines that the service quality of the service meets the requirement of the second resource parameter, establishing a service connection; otherwise, starting the release of the service connection.

The method for improving resource utilization efficiency in a communication network according to claim 1, wherein the first entity sends a request message carrying the first resource parameter to the second entity according to the following steps:

(al) the first entity sends a request message carrying the first resource parameter to the intermediate entity; (a2) after the intermediate entity receives the request message, if the resource of the intermediate entity satisfies the requirement of the first resource parameter in the request message, Then, the request message is delivered to the second entity; otherwise, the first resource parameter in the request message is modified, and the request message is sent to the second entity.

(al) the first entity sends a request message carrying the first resource parameter to the intermediate entity; (a2) after the intermediate entity receives the request message, if the resource of the intermediate entity satisfies the requirement of the first resource parameter in the request message, Transmitting the request message to the second entity; otherwise, the intermediate entity returns a response message with the second resource parameter to the first entity, the first entity modifying the first resource parameter according to the second resource parameter, and returning to the step (al) or starting the service Connected # put.

The method for improving resource utilization efficiency in a communication network according to claim 1, wherein the first entity and the second entity are connected to each other through a WiMax network.

The method for improving resource utilization efficiency in a communication network according to claim 5, wherein the first entity and the second entity that are connected to each other through a WiMax network are a policy entity, an application entity, and an access service network gateway. One of the base stations and mobile user terminals.

A system for improving resource utilization efficiency in a communication network, comprising: a plurality of entities connected to each other through a communication network, wherein each entity comprises a resource management module, and the resource management module comprises:

The system for improving resource utilization efficiency in a communication network according to claim 7, wherein the resource management module further comprises:

a second determining unit, configured to determine, according to the resource parameter in the response message, whether the quality of service of the communication connection can be reduced, and

The process deletion module unit is configured to delete the communication connection when the quality of the communication connection service cannot be lowered.

9. The system for improving resource utilization efficiency in a communication network according to claim 8, wherein the communication network is a WiMax network.

The system for improving resource utilization efficiency in a communication network according to claim 9, wherein the entity in the WiMax network is a policy entity, an application entity, and an access service network to a gateway, a base station, and a mobile user terminal. One.