CN100415055C - Wireless resource distributing process and apparatus - Google Patents
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Abstract
The present invention discloses a distribution method for wireless resources and a device, which has the core that a system reserves special wireless resources for virtual special network VPN users and sets a wireless resource distribution strategy according to a wireless resource reserve request. When the VPN users send call requests, the system carries out wireless resource distribution processing according to the wireless resource reserved for the VPN users and the set distribution strategy. The method and the device of the present invention realizes the special wireless resources reserved for users of some group, and the users of the group are guaranteed to smoothly use the reserved wireless resources to the maximum extent under the condition that the network is busy, and thereby, the communication is guaranteed to be smooth.
Description
Technical Field
The present invention relates to the field of network communication technologies, and in particular, to a method and an apparatus for allocating radio resources.
Background
The current method for allocating radio resources of the GSM system is: under the condition that the network is busy, wireless resources are allocated according to the priority of user call, a high-priority user can directly seize a Traffic Channel (TCH) wireless Channel of a low-priority user, but the users at the same level cannot mutually seize the TCH Channel. This allocation method ensures to the maximum extent that high priority users can be allocated radio resources in the case of a shortage of network radio resources. But this priority is only for a single user, so that the radio resources are used in a starvation situation, i.e. a small number of premium users can use the radio resources unimpeded.
In practical applications, it may be necessary to reserve wireless resources for some large group users (i.e. VPN (Virtual private network) users), such as civil aviation, public security, etc., to ensure that the resources are dedicated and cannot be preempted by other non-group high-priority users.
However, the above channel allocation method based on user priority cannot ensure the exclusive use of radio resources, so that a user with low priority may be preempted by a call of a user with high priority; or there is a situation that a plurality of high-priority users with the same priority contend for the radio resources, and the radio resources cannot be guaranteed to be exclusively shared by some users. Therefore, it cannot be guaranteed that under the condition that the network is busy, calls of some important departments (such as civil aviation, public security and the like) occupy the TCH channel, and thus, the smooth communication cannot be guaranteed.
Disclosure of Invention
In view of the problems existing in the prior art, an object of the present invention is to provide a method and an apparatus for allocating radio resources, which can reserve dedicated radio resources for a certain group user, and can ensure that the group user uses the reserved radio resources smoothly to the greatest extent under the condition that the network is busy, thereby ensuring smooth communication.
The purpose of the invention is realized by the following technical scheme:
the invention provides a method for allocating wireless resources, which comprises the following steps:
A. the system selects the public TCH channel in the idle state as the special TCH channel reserved by the VPN user according to the information carried in the wireless resource reservation request, and configures a TCH channel allocation strategy;
B. when the VPN user initiates a call request, the system carries out TCH channel allocation processing according to the TCH channel reserved for the VPN user and the configured allocation strategy.
The wireless resource reservation request message in step a carries VPN identification, traffic channel TCH channel rate type and quantity information.
The step A specifically comprises the following steps:
a1, the system selects the public TCH channel in idle state as VPN reserved channel according to the TCH channel rate type and quantity information carried in the wireless resource reservation request;
a2, the system makes VPN identification to the selected TCH channel according to the VPN identification carried in the wireless resource reservation request;
a3, the system reserves TCH channel for VPN user according to the request of reserving wireless resource, and configures TCH channel distribution strategy for each call of VPN user.
The step A1 includes:
and selecting the public TCH channel which is in an idle state at present and has the optimal performance as the VPN reserved channel.
The step A1 includes: when the number of TCH channels reserved for the VPN users by the system does not reach the number of TCH channels carried in the wireless resource reservation request, the system detects idle public TCH channels at regular time, and when the idle public TCH channels meeting the TCH channel rate type requirement are confirmed, the TCH channels are selected as VPN reserved channels.
The step A1 includes: the system detects the idle public TCH channel at regular time, and when the performance of the idle public TCH channel is confirmed to be superior to the performance of the reserved TCH channel, the idle public TCH channel is used for replacing the reserved TCH channel, and the reserved TCH channel is released.
The step a2 of performing VPN identification on the TCH channel specifically includes:
and adding the VPN identification in the attribute of the TCH channel.
The step B specifically comprises the following steps:
when the VPN user initiates a call request, if an idle public TCH channel and a VPN reserved channel exist at the same time, the system preferentially selects the idle VPN reserved channel to be allocated to the VPN user, and if no idle VPN reserved channel exists, the system selects the idle public TCH channel to be allocated to the VPN user, or;
if the idle public TCH channel and the VPN reserved channel exist at the same time, the system preferentially selects the idle public TCH channel to be allocated to the VPN user, and if the idle public TCH channel does not exist, the system selects the idle VPN reserved channel to be allocated to the VPN user, or;
and if the idle public TCH channel exists, the system selects the idle public TCH channel to be allocated to the VPN user, and if the idle public TCH channel does not exist, the system does not allocate the TCH channel to the VPN user.
The method further comprises the following steps:
the system regularly detects the special TCH channel reserved for the VPN user, and when the reserved TCH channel is detected to be abnormal, the public TCH channel which is in an idle state at present and has optimal performance is reselected to be used as the special TCH channel of the VPN user.
The invention also provides a device for allocating wireless resources, which comprises:
the wireless resource reservation module is used for selecting the public TCH channel in the idle state at present as a special TCH channel reserved by the VPN user of the virtual private network according to the information carried in the wireless resource reservation request message and configuring a TCH channel allocation strategy;
and the wireless resource allocation module is used for carrying out TCH channel allocation processing by the system according to the TCH channel reserved for the VPN user and the configured allocation strategy when the VPN user initiates a call request.
The wireless resource reservation module comprises a wireless resource reservation submodule and an allocation strategy configuration submodule;
the wireless resource reservation submodule is used for selecting the public TCH channel in the idle state at present as a VPN reserved channel according to the information carried in the wireless resource reservation request message, and performing VPN identification on the selected TCH channel;
and the allocation strategy configuration submodule is used for configuring a TCH channel allocation strategy for various calls of the VPN user according to the wireless resource reservation request message.
The technical scheme provided by the invention shows that the method and the system have the following advantages:
1. the method can realize the reservation of special wireless resources for a certain group user, and can ensure that the group user smoothly uses the reserved wireless resources to the maximum extent under the condition of busy network, thereby ensuring smooth communication;
2. the technical scheme of the invention is simple and easy to implement, does not need to increase hardware equipment, and can be well compatible with the existing equipment.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
fig. 2 is a schematic structural diagram of the system of the present invention.
Detailed Description
The core idea of the invention is as follows: when some important VPN users (such as group users of civil aviation, public security and the like) request to reserve wireless resources to an operator according to actual conditions, the system reserves special wireless resources for the VPN users according to the wireless resource reservation request and configures a wireless resource allocation strategy, and when the VPN users initiate a call request, the system performs wireless resource allocation processing according to the wireless resources reserved for the VPN users and the configured allocation strategy.
For a further understanding of the present invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings.
The specific implementation mode of the invention is shown in figure 1, and comprises the following steps:
step 11: the system receives a request to reserve wireless resources for a VPN user.
The radio resources include: TCH channels.
The wireless resource reservation request message carries the VPN identification, the TCH channel rate type and the quantity information.
The TCH channels are divided according to the rate types and comprise: full-rate TCH channels and half-rate TCH channels.
Step 12: and the system performs TCH channel reservation processing according to the request for reserving the wireless resource and configures a TCH channel allocation strategy for the VPN user.
The specific method for reserving the TCH channel for the VPN user by the system is as follows:
and selecting the public TCH channel in the idle state at present as a VPN reserved channel according to the TCH channel rate type and quantity information borne in the wireless resource reservation request, and performing VPN identification on all the selected TCH channels according to the VPN identification borne in the wireless resource reservation request.
If: according to the wireless resource reservation request, the system selects two full-rate TCH channels and three half-rate TCH channels as VPN reservation channels from the public TCH channels in the idle state at present, and the five TCH channels become the special wireless channels of the VPN user.
The method for performing VPN identification on the selected TCH channel specifically includes:
corresponding VPN identities are added to the attributes of these TCH channels.
After VPN identification is carried out on the reserved TCH channels, the channels become the special wireless channels of corresponding VPN users, and no matter whether the wireless resources are deficient or not, other users which are not the VPN can not occupy the wireless channels.
The reservation of wireless resources for VPN users is the resource reservation at the cell level, and TCH channel reservation can be carried out on different cells according to the requirements of VPN users.
When reserving wireless resources for VPN users, on the premise of satisfying the TCH channel rate type and idle public TCH channel, a channel with the best current performance should be preferentially selected, that is, a TCH channel satisfying the following two conditions at the same time:
1. the concentric circle cell preferentially reserves an outer circle channel;
2. a Channel compatible with a main BCCH (Broadcast Control Channel) frequency band is reserved in a common main BCCH cell preferentially;
if no TCH channel which simultaneously meets the two conditions exists, preferentially selecting the TCH channel which only meets the condition 1;
if there are currently no TCH channels that satisfy both of the above two conditions and satisfy condition 1, then the TCH channel that satisfies only condition 2 is preferentially selected.
Reserving wireless resources for VPN users can be completed by adopting a timing task, and in the timing task, a system selects TCH channels meeting conditions according to a wireless resource reservation request to perform reservation processing;
if the wireless resource reservation work is not finished in one timing task, waiting for the next wireless resource reservation timing task, and continuing to perform TCH channel reservation processing until the TCH channel reservation work for the VPN user is finished according to the quantity of the wireless resource reservation requests and the TCH channel rate type.
In the TCH channel reservation process, the system may not be optimal in the performance of the TCH channel reserved for the VPN user initially, so the system can detect whether the cell has a TCH channel with better performance through a timing task, if so, the cell replaces a channel with insufficient superior performance of the original reservation, carries out VPN identification, reserves the VPN user for use, and releases the replaced original reserved TCH channel, namely deletes the VPN identification in the channel attribute. Through the processing, the TCH channels reserved for the VPN users can be finally realized to be the channels with optimal performance.
In addition, the system can detect whether the VPN reserved channel is in failure or not through a timing task, and when the system detects that a certain VPN reserved channel is abnormal and cannot provide service, the system reselects a TCH channel meeting the conditions, namely, a public TCH channel which is in an idle state and has optimal performance is used as the VPN reserved channel and carries out VPN identification.
The timing detection task and the timing reservation wireless resource task can belong to the same timing task or different timing tasks.
The system regularly detects the VPN reserved channel, so that the integrity and the performance priority of the VPN reserved channel can be ensured, and a layer of guarantee is added to the smoothness of communication of VPN users (such as certain important departments).
After receiving a request for reserving wireless resources for a VPN user, a system configures TCH channel allocation strategies for various calls of the VPN user, wherein the strategies specifically comprise three types, and the three types are respectively:
"preferred reserved resources": if the idle public TCH channel and the VPN reserved channel exist at the same time, the idle VPN reserved channel is preferentially selected, and if the idle VPN reserved channel does not exist, the idle public TCH channel is selected;
"preferred unreserved resources": if the idle public TCH channel and the VPN reserved channel exist at the same time, the idle public TCH channel is preferentially selected, and if the idle public TCH channel does not exist, the idle VPN reserved channel is selected;
"select only unreserved resources": if the idle public TCH channel and the VPN reserved channel exist, only the idle TCH public channel is selected, and if the idle public TCH channel does not exist, the TCH channel is not allocated.
The call types of VPN users include: point calls, group calls, and private calls;
wherein, the point call means: a full duplex call between two users;
group calling: refers to a multi-user participating half-duplex call established in a designated area;
private calling: refers to a half-duplex call between two users using a short or long number.
The three channel allocation strategies are applicable to point calls, group calls or private calls of VPN users.
In practical applications, the TCH channel allocation policy can be configured according to the importance of the call type of the VPN user, such as: for VPN users such as the public security department, group calls are the most important, and point calls are the least important, so the scheme of configuring the TCH channel allocation policy for three calls may be:
the method is characterized in that a TCH channel allocation strategy of only selecting non-reserved resources is configured for point calling, a TCH channel allocation strategy of only selecting non-reserved resources or preferably non-reserved resources is configured for private calling, and a TCH channel allocation strategy of preferably reserved resources is configured for group calling.
Step 13: when a VPN user initiates a call request, the system carries out TCH channel allocation processing according to a special TCH channel reserved for the VPN user and a configured allocation strategy. The specific distribution method comprises the following steps:
preferentially distributing reserved resources, namely preferentially selecting an idle VPN reserved channel to distribute to VPN users if the idle public TCH channel and the VPN reserved channel exist at the same time, and selecting the idle public TCH channel VPN users if the idle VPN reserved channel does not exist; or,
preferentially distributing public resources, namely preferentially selecting an idle public TCH channel to distribute to VPN users by the system when the idle public TCH channel and the VPN reserved channel exist at the same time, and selecting the idle VPN reserved channel to distribute to the VPN users when the idle public TCH channel does not exist; or,
and only non-reserved resources are allocated, namely if the idle public TCH channel and the VPN reserved channel exist at the same time, the system only selects the idle public TCH channel to be allocated to the VPN user, and if the idle public TCH channel does not exist, the system does not allocate the TCH channel to the VPN user.
The present invention also provides a device for allocating radio resources, as shown in fig. 2, the system includes: the wireless resource reservation module and the wireless resource allocation module. Wherein,
the wireless resource reservation module has the functions of: reserving special wireless resources for the VPN users according to the wireless resource reservation request message and configuring a wireless resource allocation strategy;
the wireless resource allocation module has the functions of: when the VPN user initiates a call request, the system performs wireless resource allocation processing according to the wireless resources reserved for the VPN user and the configured allocation strategy.
The function of the wireless resource reservation module can be realized by a wireless resource reservation submodule and an allocation strategy configuration submodule; wherein,
the wireless resource reservation submodule has the functions of: selecting a public TCH channel in an idle state at present as a VPN reserved channel according to information carried in the wireless resource reservation request message, and performing VPN identification on all the selected TCH channels;
the distribution strategy configuration submodule has the functions of: and configuring a TCH channel allocation strategy for various calls of the VPN user according to the wireless resource reservation request message.
In summary, the technical solution of the present invention can implement reserving a dedicated TCH radio channel for a group user, and can ensure that the group user uses the reserved TCH radio channel smoothly to the greatest extent when the network is busy, thereby ensuring smooth communication; moreover, the technical scheme of the invention is simple and easy to implement, does not need to increase hardware equipment, and can be well compatible with the existing equipment.
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 allocating radio resources, comprising:
A. the system selects the public TCH channel in the idle state as the special TCH channel reserved by the VPN user according to the information carried in the wireless resource reservation request, and configures a TCH channel allocation strategy;
B. when the VPN user initiates a call request, the system carries out TCH channel allocation processing according to the TCH channel reserved for the VPN user and the configured allocation strategy.
2. The method of claim 1, wherein: the wireless resource reservation request message in step a carries VPN identification, traffic channel TCH channel rate type and quantity information.
3. The method according to claim 2, wherein the step a specifically comprises:
a1, the system selects the public TCH channel in idle state as VPN reserved channel according to the TCH channel rate type and quantity information carried in the wireless resource reservation request;
a2, the system makes VPN identification to the selected TCH channel according to the VPN identification carried in the wireless resource reservation request;
a3, the system reserves TCH channel for VPN user according to the request of reserving wireless resource, and configures TCH channel distribution strategy for each call of VPN user.
4. The method according to claim 3, wherein said step A1 comprises:
and selecting the public TCH channel which is in an idle state at present and has the optimal performance as the VPN reserved channel.
5. The method according to claim 3, wherein said step A1 comprises:
when the number of TCH channels reserved for the VPN users by the system does not reach the number of TCH channels carried in the wireless resource reservation request, the system detects idle public TCH channels at regular time, and when the idle public TCH channels meeting the TCH channel rate type requirement are confirmed, the TCH channels are selected as VPN reserved channels.
6. The method according to claim 3, wherein said step A1 comprises:
the system detects the idle public TCH channel at regular time, and when the performance of the idle public TCH channel is confirmed to be superior to the performance of the reserved TCH channel, the idle public TCH channel is used for replacing the reserved TCH channel, and the reserved TCH channel is released.
7. The method according to claim 3, wherein the step of performing VPN identification on the TCH channel in step A2 specifically comprises:
and adding the VPN identification in the attribute of the TCH channel.
8. The method according to claim 3, wherein step B specifically comprises:
when the VPN user initiates a call request, if an idle public TCH channel and a VPN reserved channel exist at the same time, the system preferentially selects the idle VPN reserved channel to be allocated to the VPN user, and if no idle VPN reserved channel exists, the system selects the idle public TCH channel to be allocated to the VPN user, or;
if the idle public TCH channel and the VPN reserved channel exist at the same time, the system preferentially selects the idle public TCH channel to be allocated to the VPN user, and if the idle public TCH channel does not exist, the system selects the idle VPN reserved channel to be allocated to the VPN user, or;
and if the idle public TCH channel exists, the system selects the idle public TCH channel to be allocated to the VPN user, and if the idle public TCH channel does not exist, the system does not allocate the TCH channel to the VPN user.
9. The method of any one of claims 1 to 8, further comprising:
the system regularly detects the special TCH channel reserved for the VPN user, and when the reserved TCH channel is detected to be abnormal, the public TCH channel which is in an idle state at present and has optimal performance is reselected to be used as the special TCH channel of the VPN user.
10. An apparatus for allocating radio resources, the apparatus comprising:
the wireless resource reservation module is used for selecting the public TCH channel in the idle state at present as a special TCH channel reserved by the VPN user of the virtual private network according to the information carried in the wireless resource reservation request message and configuring a TCH channel allocation strategy;
and the wireless resource allocation module is used for carrying out TCH channel allocation processing by the system according to the TCH channel reserved for the VPN user and the configured allocation strategy when the VPN user initiates a call request.
11. The apparatus of claim 10, wherein the radio resource reservation module comprises a radio resource reservation submodule and an allocation policy configuration submodule;
the wireless resource reservation submodule is used for selecting the public TCH channel in the idle state at present as a VPN reserved channel according to the information carried in the wireless resource reservation request message, and performing VPN identification on the selected TCH channel;
and the allocation strategy configuration submodule is used for configuring a TCH channel allocation strategy for various calls of the VPN user according to the wireless resource reservation request message.
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| CN101242653B (en) * | 2008-01-30 | 2011-07-20 | 华为技术有限公司 | Access control method and device |
| US9277554B2 (en) * | 2012-09-05 | 2016-03-01 | The Boeing Company | Servers and methods for operating a communication system |
| CN111031528B (en) * | 2018-10-10 | 2022-05-10 | ***通信有限公司研究院 | Connection establishment method and device for private network |
| CN114666410A (en) * | 2022-02-14 | 2022-06-24 | 深圳爱捷云科技有限公司 | Resource calling method and device, electronic equipment and storage medium |
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| WO2004114565A1 (en) * | 2003-06-26 | 2004-12-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement in a communication system |
| CN1622657A (en) * | 2003-11-24 | 2005-06-01 | 上海贝尔阿尔卡特股份有限公司 | Resource allocation method and apparatus in wireless communication system |
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| WO2004114565A1 (en) * | 2003-06-26 | 2004-12-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement in a communication system |
| CN1622657A (en) * | 2003-11-24 | 2005-06-01 | 上海贝尔阿尔卡特股份有限公司 | Resource allocation method and apparatus in wireless communication system |
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