WO2011032454A1

WO2011032454A1 - Method and equipment for allocating resource of shared network

Info

Publication number: WO2011032454A1
Application number: PCT/CN2010/076293
Authority: WO
Inventors: 李荃
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-09-16
Filing date: 2010-08-24
Publication date: 2011-03-24
Also published as: CN101674602B; CN101674602A

Abstract

A method and equipment for allocating the resource of a shared network are provided by the present invention, and the method includes: a user requests a service of a specific core network operator to an access network device of a shared network, a resource allocation equipment connected to the access network device judges whether the shared network resource which has been occupied by the specific core network operator is less than a preset shared network resource upper limit; if the shared network resource which has been occupied by the specific core network operator is less than the preset shared network resource upper limit, the resource allocation equipment allocates the resource for the specific core network operator, and the user is connected to the service of the specific core network operator; if the shared network resource which has been occupied by the specific core network operator is more than or equal to the preset shared network resource upper limit, the resource allocation equipment does not allocate the resource for the specific core network operator, and the user can not be connected to the service of the specific core network operator. The reasonable allocation of the resource can be enabled by the present invention.

Description

Resource allocation method and device for shared network

Technical field

The present invention relates to the field of network communications, and in particular, to a resource allocation method and apparatus for a shared network.

Background technique

In a network that does not introduce network sharing technology, one access network is connected to only one core network, and only one core network operator is provided. Therefore, all resources belong to the same carrier.

The introduction of network sharing technology in the 3GPP Rel6 (3rd Generation Partnership Project Release 6) protocol provides a method for wireless resource sharing, enabling multiple core network operators to share the same Access network, while saving the cost of network network operators in network construction.

The first one is GWCN (Gateway Core Network), and the core networks of multiple operators share the same access network, and the MSC (Mobile Switching Center) connected to the access network in the core network and SGSN (Serving GPRS Support Node: GPRS service support node) is also shared.

The second type is the MOCN (Mu-operateor Core Network). The core networks of multiple carriers share only the same access network. The other core network devices are provided by the operators.

In a shared network, multiple operators share access network resources, and even some core network resources. The amount of resources that an operator can occupy directly affects the size of the traffic, which affects the revenue of the operator. The issue of resource allocation between businesses. Summary of the invention

It is an object of the present invention to provide a resource allocation method and apparatus for a shared network, which aims to solve the problem of how resources are properly allocated among multiple operators in a shared network.

The present invention is implemented as follows: A resource allocation method for a shared network, including: The user requests the access network device of the shared network to request the service of the specific core network operator; and the resource allocation device that connects the access network device determines whether the shared network resource that the specific core network operator has occupied is less than a preset Sharing a network resource upper limit; if the shared network resource that the specific core network operator has occupied is less than a preset shared network resource upper limit, the resource allocation device allocates resources for the specific core network operator, and the user connects to the The service of the specific core network operator; if the shared network resource that the specific core network operator has occupied is greater than or equal to the preset shared network resource upper limit, the resource allocation device does not allocate the specific core network operator. Resources, the user cannot connect to the service of the particular core network operator.

The method for resource allocation between the core network operators disclosed by the present invention further includes the following technical features: After the user connects to the service of the specific core network operator, the method further includes: The resource allocation device updates the shared network resource list that the specific core network operator has occupied.

If the shared network resource that the specific core network operator has occupied is smaller than a preset shared network resource upper limit, the resource allocation device allocates resources for the specific core network operator, and the user connects to the specific The service of the core network operator includes: if the shared network resource that the specific core network operator has occupied is smaller than a preset shared network resource upper limit, the resource allocation device further determines whether there is a shared network resource that can be allocated, If there are also shared network resources available for allocation, the resource allocation device allocates resources for the specific core network operator, the user connects to the service of the specific core network operator; if there is no shared available for allocation The network resource, the resource allocation device releases the shared network resource that has been occupied by the core network operator of the specific core network operator and is allocated to the specific core network operator.

If there is no shared network resource available for allocation, the resource allocation device releases the shared network resource whose priority is lower than that of the core network operator of the specific core network operator, and allocates the specific network resource In the processing of the core network operator, when the resource allocation device determines that there is no shared network resource available for allocation, the resource allocation device of the access network device first lowers the priority than the specific core network operation. All the core network operators of the service are sorted according to the priority, starting from the core network operator with the lowest priority, first determining the share that the core network operator has already occupied. Whether the network resource is smaller than the preset shared network resource lower limit. If the shared network resource that the core network operator has occupied is greater than or equal to the preset shared network resource lower limit, the resource allocation device releases the shared network that the core network operator has already occupied. If the shared network resource that the core network operator has occupied is less than the preset shared network resource lower limit, the resource allocation device does not release the shared network resource that the core network operator has already occupied, and further determines the core with higher priority. Whether the shared network resource that the network operator has occupied is smaller than the preset lower limit of the shared network resource, so that all the core network operators whose priority is lower than the specific core network operator are traversed until the shared network resource that has been occupied is found. The core network operator that is greater than the lower limit of the shared network resource is configured to release the shared network resources that it has already occupied. If the core network operator whose shared network resource is greater than the lower limit of the shared network resource is not found, Place Specific core network operators to allocate resources.

In the process of whether the shared network resource that the specific core network operator has occupied is smaller than a preset shared network resource upper limit, the resource allocation device determines that the user has already occupied the number according to the number of users who have accessed the core network operator. Sharing network resources; or judging the shared network resources that have been occupied by the number of channels that have been occupied by the core network operator.

Another object of the present invention is as follows: A resource allocation device for a shared network, comprising: a core network configuration module, configured to set an upper limit of a shared network resource occupied by each core network operator; a user request receiving module, and setting thereof a request for receiving a service from a user accessing a specific core network operator; and a shared resource allocation module configured to determine that the specific core network operator is occupied according to a user request from the user request receiving module Whether the shared network resource is smaller than a shared network resource upper limit preset in the core network configuration module; if the shared network resource that the specific core network operator has occupied is smaller than the shared network resource upper limit, the specific The core network operator allocates resources connected to the user; if the shared network resource that the specific core network operator has occupied is greater than or equal to the shared network resource upper limit, the specific core network operator is not Allocate resources that are connected to the user.

The core network configuration module is further configured to maintain, for each core network operator, an occupied shared network resource list, and when the user connects to the service of the specific core network operator, update the specific A list of shared network resources occupied by the core network operator.

The core network configuration module is further configured to maintain a shared network resource column that can be allocated The shared resource allocation module is further configured to: determine, according to the available shared network resource list, whether to allocate resources connected to the user for the specific core network operator, if there is a share available for allocation The network resource allocates resources for the specific core network operator; if there is no shared network resource that can be allocated, the shared priority that is lower than the core network operator of the specific core network operator is released first. Network resources are assigned to the specific core network operator.

The core network configuration module is further configured to set a lower limit and a priority of the shared network resource occupied by each core network operator; the shared resource allocation module is configured to: when there is no shared network resource available for allocation, All the core network operators whose priorities are lower than the specific core network operators are sorted according to the priority. Starting from the core network operator with the lowest priority, it is first determined whether the shared network resources occupied by the core network operators are smaller than If the shared network resource that the core network operator has occupied is greater than or equal to the preset shared network resource lower limit, the shared network resource that the core network operator has already occupied is released; if the core network is operated, If the shared network resource that the quotient already occupies is less than the lower limit of the shared network resource, the shared network resource that the core network operator has already occupied is not released, and the shared network resource that the core network operator with higher priority has already occupied is further determined. Less than the preset shared network resource a lower limit, such that the core network operators whose priority is lower than the specific core network operator are traversed until the core network operator that has occupied the shared network resource greater than the preset shared network resource lower limit is found, and the The occupied network resource is occupied; if the core network operator whose shared network resource is larger than the preset shared network resource lower limit is not found, the resource is not allocated for the specific core network operator.

The core network configuration module is configured to: according to the number of users that have accessed the core network operator, the shared network resource list that is occupied by each core network operator and the list of shared network resources that are available for allocation; The number of channels occupied by the core network operator is a list of shared network resources that each core network operator has occupied and a list of shared network resources that can be allocated.

The method and device for allocating resources of a shared network disclosed by the present invention, by collecting the resource occupation status of each core network operator, allocating resources according to the priority and the available resource status of the shared network, and utilizing each The priority of the core network operator is adjusted to re-allocate the resources, and the resources are allocated reasonably, so that multiple different core network operators connected to the shared access network can allocate and use resources according to the predetermined division criteria. BRIEF abstract

FIG. 1 is a schematic structural diagram of a network in which each access network device is connected to an access control device for resource allocation according to the present invention.

2 is a schematic diagram of a network structure of a plurality of access network devices connected to an access control device for resource allocation according to the present invention.

FIG. 3 is a flowchart of a network resource allocation method of the network structure shown in FIG. 1.

4 is a flow chart of a network resource allocation method of the network structure shown in FIG. 2.

FIG. 5 is a flowchart of a method for allocating a network resource when the network resource is insufficiently allocated.

Preferred embodiment of the invention

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to solve the problem of sharing access network resources, the present invention adds a core network operator resource allocation device to the shared access network, and the resource allocation device includes the following functions:

1) Set the maximum occupied resources of each access network device of each operator. The occupied resources can be the following but not limited to these types: the number of users accessed; the number of occupied channels.

There can be a value in the set upper limit value indicating that there is no upper limit on the occupied resources.

2) When the access network allocates radio channel resources to the user, the access network determines the radio resources of the access network device occupied by the operator selected by the current service of the user.

If it is infinite, it is allowed to allocate channel resources for the user's services within the operator.

If it is limited and the upper limit has been reached, the allocation of channel resources for the user's services within the operator is not allowed.

If it is limited, but does not reach the upper limit, the user allocates channel resources for the service within the operator. 3) Establish and update a list of access network resources occupied by each core network operator that connects to the shared network.

4) Set the minimum radio resources occupied by each core network operator.

5) Set the priority of each core network operator.

6) If the shared access network resources are saturated and no new radio resources can be allocated, the priorities of the core network operators can be used for resource adjustment. If the core network operator selected by the user has a high priority, the core network operator with low priority can be preempted, but the wireless resource occupied by each core network operator cannot be preempted when it is lower than the set minimum wireless resource.

The resource allocation device may be part of an access network device or an independent device, and the following two modes are as follows:

As shown in FIG. 1, each access network device of the shared network is connected to a core network operator resource allocation device, such as the CN access control device 11 and the CN access control device 12; and, as shown in FIG. A plurality of access network devices in the shared network are connected to a core network operator resource allocation device, such as the CN access control device in the figure.

As shown in FIG. 1, three core network CN operators (Operator) A, CN Operator B, and CN Operator C share a network. In the shared access network, there are an access network device 21 and an access network device 22, and The CN access control device 11 and the CN access control device 12 of the access network device 21 and the access network device 22 are respectively connected; and a resource allocation setting table for the three core networks is maintained in both access control devices, The resource occupancy upper limit Load_max, the resource occupancy lower limit Load_min, and the resource occupation priority PRI respectively corresponding to the settings of the three core networks are included. In the CN access control device 1, the resource occupancy upper limit values Load_Amax-1, Load_Bmax-1 and Load Cmax1; resource occupancy lower limit Load Amin l, Load_Bmin-1 and Load_Bmin- 1; resource occupancy upper limit Load - Amax - 2, Load - Bmax - 2 and Load - Cmax - 2; resource occupancy lower limit Load - Amin - 2, Load - Bmin - 2 and Load - Bmin - 2; resource occupation Priority PRI—A—2, PRI B 2 and PRI—C-1. At the same time, the resource occupancy statistics table is maintained in the two access control devices, including the existing resource usage Load_now corresponding to the three core networks. In the CN access control device 1, the corresponding three core networks are Load_A-1, Load_B-1 and Load_C-1; and in the CN access control device 2, respectively corresponding to three core networks. The load is A- 2, Load-B-2 and Load C 2. As shown in FIG. 2, three core networks CN Operator A, CN Operator B, and CN Operator C share a network. In the shared access network, there are an access network device 21, an access network device 22, and an access network device 23. They share a CN access control device. In the CN access control device, a resource allocation setting table for three core networks is maintained, including resource occupancy priorities PRI-A, PRI-B, and PRI-C corresponding to the settings of the three core networks respectively; resource occupation The upper limit load - Amax, Load - Bmax and Load - Cmax; the existing resource occupancy statistics table Load - A, Load - B, and Load - C.

When the user UE accesses an access network device, the UE selects a core network operator to access the service for transmission. 3 is a flow chart of a network resource allocation method of the network structure shown in FIG. 1. From this figure, we can see that when a user selects a core network operator as CN Operator A, and requests allocation in the access network device 1, Resource allocation process of the resource allocation device of the core network operator resource allocation device.

First, the upper limit of each operator resource is set, and the settings in the CN access control device 1 corresponding to the access network device 1 are Load_Amax-1, Load_Bmax-1, Load_Cmax-1, respectively corresponding to the CN Operator. A, CN Operator B, CN Operator C„ The settings in the corresponding CN access control device 2 of the same access network device 2 are Load_Amax-2, Load_Bmax-2, Load_Cmax-2, as shown in Fig. 1. The table in the table;

Step 301: The user UE accesses the access network device 1;

Step 302: Select an operator that performs the service as CN Operator A;

Step 303: When the access network device 1 allocates radio resources to the UE, it is determined whether the CN Operator A resource upper limit value Load_Amax-1 of the access network device 1 indicates that there is no upper limit for the radio resources that can be occupied by the operator A. If yes, Then step 305 is performed; otherwise, step 304 is performed;

Step 304: Determine whether the amount of the wireless resource currently occupied by the operator A in the access network device 1 is smaller than Load_Amax-1, if not, proceed to step 305, otherwise, execute step 307;

Step 305: The access network device 1 allocates radio resources to the UE.

Step 306: Update the amount of the wireless resource that the CN Operator A occupies in the access network device 1 Load_A-1, and the process ends;

Step 307: Reject the allocation of radio resources to the UE. FIG. 4 is a flowchart of a network resource allocation method of the network structure shown in FIG. 2. In the network of Figure 2, the upper limit of each operator resource is set, which is Load_Amax, Load_Bmax, and Load Cmax, respectively corresponding to CN Operator A, CN Operator B, and CN Operator C. When a user selects the core network operator as the CN Operator B and requests the resource allocation in the access network device 1, the resource allocation processing flow of the core network operator resource allocation device CN access control device is as shown in FIG. 5.

Step 401: The user UE accesses the access network device 1;

Step 402: Select an operator that performs the service as CN Operator B;

Step 403: When the access network device 1 allocates radio resources to the UE, first determine whether the CN Operator B resource upper limit value Load_Bmax indicates that there is no upper limit, and if yes, execute step 405; otherwise, perform step 404;

Step 404, determining whether the current amount of radio resources occupied by the operator B Load-B is less than Load-Bmax, if not, proceeding to step 405; otherwise, performing step 407;

Step 405: The CN access control apparatus allocates radio resources to the UE.

Step 406: Update the amount of resources occupied by Operator B Load-B, and the process ends;

Step 407: Reject the allocation of radio resources to the UE.

As shown in FIG. 5, when the radio resources of the access network reach saturation, the access network equipment RNC can preempt the users of the higher priority operators according to the priority order of the operators. Resources occupied by users of low priority carriers.

Set the lower resource limit of each carrier resource. If the value is lower than the value, the carrier's wireless resources are not allowed to be preempted. For example, CN Operator A in Figure 1 corresponds to Load-Amin-1, Load-Amin-2, Figure 2 CN Operator B corresponds to Load—Amin. Other operators and so on.

Set the priority of each carrier. CN Operator A in Figure 1 corresponds to PRI-A-1, PRI A-2, and CN Operator A in the structure of Figure 2 corresponds to PRI-A.

Step 501: When the resources of the access network are saturated, step 502 is performed;

Step 502: Perform radio resource allocation for a service of an operator (such as operator A). Step 503, determining whether the operator A meets other conditions of resource allocation, if yes, go to step 504, otherwise, go to step 509;

Step 504: Sort the priorities of all connected core carriers, and the priority of the 4 bar is lower than the operator of the operator selected by the user into the candidate list;

Step 505, it is determined whether the candidate list is empty, if the candidate list is empty, step 509 is performed; otherwise, step 506 is performed;

Step 506: Select an operator with the lowest priority from the candidate list.

Step 507, determining whether the currently occupied resource of the selected operator is lower than the lower limit of the resource, if the value is less than or equal to the value, step 510 is performed; if the current resource occupied by the operator is greater than the lower limit of the resource, step 508 is performed;

Step 508: The access network releases a certain amount of resources of the operator to the operator user who needs to newly allocate the resource, and ensures that the resource occupied by the operator with a relatively low priority is still greater than or equal to the lower limit of the resource after releasing a certain amount of resources; End;

Step 509, exit, do not allocate resources; end;

Step 510: Remove the operator from the candidate list, and skip to step 505.

A person skilled in the art can understand that the present invention pre-sets parameters such as a resource occupation upper limit, a resource preemption lower limit, and a priority in a shared network, when the resources of the access network are not saturated, and the core network operator When the occupied resource does not reach the upper limit of the resource occupation, the access network can continue to allocate resources for the operator. If the resources of the access network are saturated, but the resources occupied by the core network operator do not reach the upper limit of the resource occupation, and the resources occupied by the lower priority carrier are higher than the lower limit of the resource preemption, the access network may be the priority. Relatively high operators seize the resources of operators with lower priority.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software. The above two cases are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, and improvements made within the spirit and principles of the present invention should be included in the present invention. Within the scope of protection.

Industrial applicability

The method and device for allocating resources of a shared network provided by the present invention, by collecting the resource occupation status of each core network operator, allocating resources according to the priority and the available resource status of the shared network, and utilizing each core network The priority of the operator is different, and the resource allocation is re-adjusted to realize the rational allocation of resources, so that multiple different core network operators connected to the shared access network can allocate and use resources according to the predetermined division criteria.

Claims

Claim

1. A resource allocation method for a shared network, comprising:

The user requests the access network device of the shared network to request the service of the specific core network operator; and the resource allocation device that connects the access network device determines whether the shared network resource that the specific core network operator has occupied is less than a preset Sharing a network resource upper limit; if the shared network resource that the specific core network operator has occupied is less than a preset shared network resource upper limit, the resource allocation device allocates resources for the specific core network operator, and the user connects to the The service of the specific core network operator; if the shared network resource that the specific core network operator has occupied is greater than or equal to the preset shared network resource upper limit, the resource allocation device does not allocate the specific core network operator. Resources, the user cannot connect to the service of the particular core network operator.

2. The method of claim 1, after the user connects to the service of the specific core network operator, the method further comprising: the resource allocation device updating the specific core network operator A list of shared network resources that are occupied.

3. The method according to claim 1, wherein if the shared network resource that the specific core network operator has occupied is smaller than a preset shared network resource upper limit, the resource allocation device allocates resources for the specific core network operator. The service that the user connects to the specific core network operator includes:

If the shared network resource that the specific core network operator has occupied is smaller than a preset shared network resource upper limit, the resource allocation device further determines whether there is a shared network resource that can be allocated, if there is still a share available for allocation. a network resource, the resource allocation device allocates resources for the specific core network operator, the user connects to the service of the specific core network operator; if there is no shared network resource available for allocation, the resource allocation The device releases the shared network resource that is occupied by the core network operator of the specific core network operator and is allocated to the specific core network operator.

4. The method of claim 3, wherein if there is no shared network resource available for allocation, the resource allocation device releases a shared network resource having a lower priority than the specific core network operator already possesses. And assigned to the processing of the specific core network operator,

When the resource allocation device determines that there is no shared network resource available for allocation, the connection The resource allocation device of the network access device first sorts all the core network operators whose priority is lower than the specific core network operator according to the priority, and starts from the core network operator with the lowest priority, first determines that the core network operator has already Whether the occupied shared network resource is smaller than the preset shared network resource lower limit. If the shared network resource that the core network operator has occupied is greater than or equal to the preset shared network resource lower limit, the resource allocation device releases the core network operator has occupied The shared network resource; if the shared network resource that the core network operator has occupied is less than the preset shared network resource lower limit, the resource allocation device does not release the shared network resource that the core network operator has already occupied, and further determines the priority. Whether the shared network resource occupied by the high core network operator is smaller than the preset shared network resource lower limit, so that all the core network operators whose priority is lower than the specific core network operator are traversed until the occupied network is found. Shared network resources are greater than pre- The core network operator that sets the lower limit of the shared network resource first releases the shared network resources that it has already occupied. If the core network operator whose shared network resource is larger than the preset lower limit of the shared network resource is not found, it is not The specific core network operator allocates resources.

The method according to claim 2 or claim 4, wherein in the process of whether the shared network resource that the specific core network operator has occupied is smaller than a preset shared network resource upper limit, the resource allocation device is configured according to The number of users that have access to the core network operator determines the shared network resources that they have occupied; or judges the shared network resources that they have occupied based on the number of channels that have been occupied by the core network operator.

6. A resource allocation device for a shared network, comprising:

a core network configuration module, which is set to set an upper limit of the shared network resource occupied by each core network operator;

a user request receiving module configured to receive a request from a user to access a service of a particular core network operator;

a shared resource allocation module, configured to determine, according to a user request from the user request receiving module, whether the shared network resource that the specific core network operator has occupied is smaller than a shared network preset in the core network configuration module. a resource upper limit; if the shared network resource that the specific core network operator has occupied is smaller than the shared network resource upper limit, the specific core network operator is allocated resources connected to the user; If the shared network resource that the core network operator has occupied is greater than or equal to the shared network resource upper limit, the specific core network operator is not allocated resources connected to the user.

7. The apparatus according to claim 6, wherein the core network configuration module is further configured to maintain, for each core network operator, an occupied shared network resource list, when the user connects to the specific After the service of the core network operator, the shared network resource list occupied by the specific core network operator is updated.

8. The apparatus according to claim 6, wherein the core network configuration module is further configured to maintain a list of shared network resources available for allocation; the shared resource allocation module is further configured to: allocate according to the The shared network resource list determines whether the specific core network operator is allocated resources connected to the user, and if there are shared network resources available for allocation, resources are allocated for the specific core network operator; The shared network resource that can be allocated is first released with the shared network resource that the core network operator has a lower priority than the specific core network operator, and is allocated to the specific core network operator.

The device according to claim 8, wherein the core network configuration module is further configured to: set a lower limit and a priority of the shared network resource occupied by each core network operator; the shared resource allocation module is set to When there is no shared network resource available for allocation, all core network operators with lower priority than the specific core network operator are sorted according to priority, starting from the lowest priority core network operator, first determining Whether the shared network resource that the core network operator has occupied is smaller than the preset shared network resource lower limit. If the shared network resource that the core network operator has occupied is greater than or equal to the preset shared network resource lower limit, the core network operation is released. If the shared network resource that the core network operator has already occupied is smaller than the preset shared network resource lower limit, the shared network resource that the core network operator has already occupied is not released, and the priority is further determined. High shared network network operators have occupied the shared network Whether the resource is smaller than the preset lower limit of the shared network resource, so that all the core network operators whose priority is lower than the specific core network operator are traversed until the occupied shared network resource is found to be larger than the preset shared network resource lower limit. The core network operator releases the shared network resources that it has already occupied; if the core network operator that has occupied the shared network resource greater than the preset lower limit of the shared network resource is not found, the specific core network operator is not resource allocation.

The device according to claim 6 or claim 9, wherein the core network configuration module is configured to calculate, according to the number of users who have accessed the core network operator, that each core network operator has occupied a shared network resource list and a list of shared network resources that can be allocated; or a shared network resource list and a shared network resource that can be allocated by each core network operator according to the number of channels that have been occupied by the core network operator. List.