WO2007082437A1

WO2007082437A1 - Method and system for assigning channels

Info

Publication number: WO2007082437A1
Application number: PCT/CN2006/002963
Authority: WO
Inventors: Changdong Yang; Mingyang Dai
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-01-18
Filing date: 2006-11-03
Publication date: 2007-07-26
Also published as: CN1859645A; CN100384267C

Abstract

A method and system for assigning channels, the system comprises: MSC, BSC, and mode determination unit. The method comprises: configuring the channel load threshold, configuring group 1.0 channel mode and group 1.5 channel mode on the mobile switching center (MSC); the base station controller (BSC) checks the channel load of the cell that the terminal resides after it has received the request reported by the terminal; judges if the channel of the cell that the terminal resides exceeds the configured channel load threshold, if yes, MSC assigns a group 1.0 channel for the terminal, otherwise, MSC assigns a group 1.5 channel for the terminal. The present invention solves the balance problem between the group speech quality and the system capacity, thereby satisfies the system service QoS at maximum.

Description

Method and system for allocating channels

Technical field

The present invention relates to the field of trunking communication technologies, and in particular, to a method and system for allocating channels. Background of the invention

In the existing trunking communication technology, there are two types of trunking communication channels: one is a cluster 1.0 channel, and the other is a cluster 1.5 channel. For the cluster 1.0 channel, the calling terminal and the called terminal of the same cell share the same traffic channel, the calling terminal occupies the uplink and the downlink of the traffic channel, and the called terminal listens to the downlink of the traffic channel. For the cluster 1.5 channel, the calling terminal and the called terminal of the same cell respectively occupy one traffic channel, the calling terminal occupies a dedicated channel, and the called terminal occupies the group call channel.

When cluster communication is performed using the cluster 1.0 channel, since the calling terminal and the called terminal of the same cell share the same traffic channel, channel resources can be saved, and the utilization rate of the cluster communication channel can be effectively improved, which is suitable for cluster communication with large channel load. It can provide cluster communication services for more terminals, and thus effectively increase the capacity of the trunking communication system. However, since the calling terminal and the called terminal share the same traffic channel, the calling terminal hears the echo, so the cluster 1.0 channel is used for cluster communication, which greatly reduces the quality of the trunk call, and may even affect the normal cluster communication. The realization of the function.

When the cluster communication is performed on the cluster 1.5 channel, the calling terminal and the called terminal respectively occupy a traffic channel, and the calling terminal does not hear the echo. In addition, the called terminal can receive the voice of the dispatching station through the occupied group call channel. Information, so the quality of the trunk call is 4艮, which is suitable for cluster communication with high call quality requirements. However, since the calling terminal and the called terminal respectively occupy one traffic channel, the channel utilization is reduced, and a large number of channels are wasted. Resources, which in turn greatly reduce the capacity of the trunking communication system.

In the prior art, the trunking communication channel is allocated by the mobile switching center (MSC) for the terminal. After the terminal initiates the trunking call, the base station controller (BSC) reports the call information sent by the terminal to the MSC, and the MSC allocates the trunking communication channel to the terminal according to the channel mode configured when the system is networked. If the channel mode configured on the MSC is the cluster 1.0 channel, the MSC allocates the cluster 1.0 channel to the terminal. If the channel mode configured on the MSC is 1.5 channels, the MSC allocates the cluster to the terminal. channel.

As can be seen from the above process of allocating channels, the prior art allocates channels to terminals only according to the configured channel mode, without considering the current state of the system. In this way, if the cluster 1.0 channel is allocated according to the configuration, and the current most prominent problem of the system is poor call quality, although the channel resources are saved and the system capacity is improved, the quality of the most important cluster call is not guaranteed; If the cluster 1.5 channel is allocated according to the configuration, and the current most important problem of the system is the lack of channel resources, although the quality of the trunk call is guaranteed, the current most important channel resources cannot be saved, and the most important system capacity cannot be solved. problem.

Therefore, the existing method of allocating channels cannot solve the problem of balance between the quality of the call between the cluster and the system capacity, and cannot satisfy the service quality requirements of the system to the greatest extent. Summary of the invention

It is an object of embodiments of the present invention to provide a method and system for allocating channels to solve the problem of balance between trunk call quality and system capacity.

To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows: a method for allocating a channel, configuring a channel load threshold, and configuring a cluster 1.0 channel mode and a cluster 1.5 channel mode on the mobile switching center MSC, where the method further includes The following steps: After receiving the request reported by the terminal, the base station controller BSC checks the cell where the terminal is located. Channel load

It is determined whether the channel load of the cell where the terminal is located exceeds the configured channel load threshold. If it exceeds, the MSC allocates a cluster 1.0 channel for the terminal. Otherwise, the MSC allocates a group 1.5 channel for the terminal.

A system for allocating a channel, the system comprising: a BSC, an MSC, and a channel mode determining unit, wherein

The BSC receives the request reported by the terminal, checks the channel load of the cell where the terminal is located, and outputs the channel load information of the cell where the detected terminal is located to the channel mode determining unit;

The channel mode determining unit saves the configured channel load threshold, determines a channel mode according to the received channel load information of the cell in which the terminal is located, and the saved channel load threshold, and outputs the determined channel mode information to the MSC;

The MSC allocates a cluster 1.0 channel or a cluster 1.5 channel to the terminal according to the received channel mode information.

The channel mode determining unit is provided on the newly added device or on an existing device independent of the BSC and the MSC, or integrated in the BSC, or integrated in the MSC.

As can be seen from the foregoing solution, the present invention configures a cluster 1.0 channel and a cluster 1.5 channel on the MSC, and configures a channel load threshold, so that the MSC can allocate a cluster communication channel to the terminal according to the channel load of the cell where the terminal is located and the configured channel load threshold. If the channel load of the cell in which the terminal is located exceeds the configured channel load threshold, the MSC allocates a cluster 1.0 channel to the terminal; if the channel load of the cell where the terminal is located does not exceed the configured channel load threshold, the MSC allocates 1.5 channels to the terminal.

With the present invention, since the MSC can reasonably allocate the trunking communication channel to the terminal according to the channel load condition, when the number of system users is large and the channel load is heavy, the channel load of the cell where the terminal is located exceeds the configured channel load threshold, and the MSC allocates the terminal. Cluster 1.0 channel, which can save the most important channel resources and improve the capacity of the system; When the channel load is light, the channel load of the cell where the terminal is located does not exceed the configured channel load threshold, and the MSC allocates 1.5 channels of the cluster to the terminal, which can ensure the quality of the most important cluster call. Therefore, the present invention solves the problem of balancing the quality of the call between the cluster and the system, and improves the quality of the trunk call when the call quality is improved. When the channel resources need to be saved, the channel resources can be saved, thereby maximizing the channel resources. Meet the system's business service quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS

1A is a flowchart of an implementation of a system for allocating a channel according to an embodiment of the present invention; FIG. 1B is a schematic structural diagram of a system for allocating a channel according to an embodiment of the present invention; FIG. 2 is a flowchart of a method for allocating a channel according to a first embodiment of the present invention;

3 is a flow chart of a method for allocating channels according to a second embodiment of the present invention. Mode for carrying out the invention

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the embodiments.

The main content of the embodiment of the present invention is: configuring the channel load threshold and configuring the cluster 1.0 channel mode and the cluster 1.5 channel mode on the MSC, so that the MSC can allocate the cluster to the terminal according to the channel load of the cell where the terminal is located and the configured channel load threshold. The communication channel, if the channel load of the cell where the terminal is located exceeds the configured channel load threshold, the MSC allocates the cluster 1.0 channel for the terminal; if the channel load of the cell where the terminal is located does not exceed the configured channel load threshold, the MSC allocates 1.5 channels for the terminal.

As shown in FIG. 1A, FIG. 1A is a flowchart of an implementation of a technical solution for allocating channels according to an embodiment of the present invention. The premise of the implementation of the embodiment of the present invention is: configuring a channel load threshold, and configuring a cluster 1.0 channel mode and a cluster 1.5 channel mode on the MSC. The method also includes the following steps: Step 101: After receiving the request reported by the terminal, the BSC checks the channel load of the cell where the terminal is located.

Here, the BSC checks that the channel load of the cell where the terminal is located is performed by the user who is using the cluster channel for cluster communication in the cell where the terminal is located.

Step 102: Determine whether the channel load of the cell where the terminal is located exceeds the configured channel load threshold, if yes, go to step 103; otherwise, go to step 104;

Step 103: The MSC allocates a cluster 1.0 channel to the terminal, and ends the process;

Step 104: The MSC allocates a cluster 1.5 channel to the terminal.

FIG. 1B is a schematic diagram of a basic structure of a system for allocating channels according to an embodiment of the present invention. The system for allocating channels mainly includes: a BSC, an MSC, and a channel mode determining unit, where

The MSC, according to the received channel mode information, allocates a cluster 1.0 channel or a cluster 1.5 channel to the terminal.

Referring to FIG. 1B, in the system of the embodiment of the present invention, the channel mode determining unit may be set on a newly added device, or set on an existing device independent of the BSC and the MSC, or integrated in the BSC, or integrated. In the MSC.

The above configuration of the cluster 1.0 channel mode and the cluster 1.5 channel mode on the MSC may be performed when the cluster network system is networked, or may be performed in the established cluster network system. In general, one channel mode of the cluster 1.0 channel and the cluster 1.5 channel channel has been configured in the cluster network system that has been set up. In this case, only another channel mode needs to be configured, so that the cluster network system can simultaneously support. Cluster 1.0 channel mode and cluster 1.5 channel mode Style. In the existing cluster network system, if both the cluster 1.0 channel mode and the cluster 1.5 channel mode are configured, the cluster network system can simultaneously support the cluster 1.0 channel mode and the cluster 1.5 channel mode. In the system, the channel mode determining unit is integrated in the BSC, and can also be performed on the MSC (corresponding to the case where the channel mode determining unit is integrated in the MSC in the system of the embodiment of the present invention). When a channel load threshold is specifically configured, one channel load threshold may be configured for all cells in the BSC or MSC range, and one channel load threshold may be configured for each cell in the BSC or MSC range.

When the channel load threshold is configured on the BSC, it is determined by the BSC whether the channel load of the cell where the terminal is located exceeds the configured channel load threshold in step 102. If a channel load threshold is configured for all the cells in the BSC range, the channel load of the cell where the terminal is located exceeds the configured channel load threshold in step 102: The BSC determines whether the channel load of the cell where the terminal is located exceeds all cell configurations. Channel load threshold. If a channel load threshold is configured for each cell in the BSC range, the channel load of the cell where the terminal is located exceeds the configured channel load threshold in step 102: The BSC determines whether the channel load of the cell where the terminal is located exceeds the terminal. The channel load threshold configured in the cell.

At this time, in the message sent by the BSC to the MSC, the embodiment of the present invention increases the channel allocation parameter by using the reserved field or the newly added field. Before the MSC allocates the cluster 1.0 channel to the terminal in step 103, the BSC further fills in the channel allocation parameter that sends the message to the MSC, and fills in the information requesting the allocation of the channel 1.0 channel, and sends a message carrying the channel allocation parameter to the MSC. In step 103, the MSC allocates a cluster 1.0 channel to the terminal according to the channel allocation parameter carried in the received message. Before the MSC allocates the cluster 1.5 channel to the terminal in step 104, the BSC further fills in the required allocation cluster 1.5 in the channel allocation parameter for sending the message to the MSC. The information of the channel, and sends a message carrying the channel allocation parameter to the MSC. In step 104, the MSC allocates a cluster 1.5 channel to the terminal according to the channel allocation parameter carried in the received message.

When the channel load threshold is configured on the MSC, it is determined by the MSC whether the channel load of the cell in which the terminal is located exceeds the configured channel load threshold in step 102. If the channel load threshold is configured for all the cells in the MSC, the channel load of the cell where the terminal is located exceeds the configured channel load threshold in the step 102: The MSC determines whether the channel load of the cell where the terminal is located exceeds the configuration of all the cells. Channel load threshold. If a channel load threshold is configured for each cell in the MSC, the channel load of the cell where the terminal is located exceeds the configured channel load threshold in the step 102: The MSC determines whether the channel load of the cell where the terminal is located exceeds the terminal. The channel load threshold configured in the cell.

At this time, in the message sent by the BSC to the MSC, the embodiment of the present invention uses the reserved field or the newly added field to increase the channel load parameter. Between step 101 and step 102, the BSC further fills the channel load of the cell where the terminal is checked into the added channel load parameter, and sends a message carrying the channel load parameter to the MSC, and the MSC according to the received message The channel load parameter carried is used to obtain the channel load of the cell where the terminal is located, and then the MSC can determine whether the channel load of the cell where the terminal is located exceeds the configured channel load threshold.

The technical solutions provided by the embodiments of the present invention are described in detail in conjunction with the specific embodiments and with reference to the accompanying drawings.

2 is a flow chart of a method for allocating channels according to a first embodiment of the present invention. Referring to FIG. 1B and FIG. 2, in this embodiment, a channel mode determining unit of the system is integrated in the BSC, and a channel load threshold is configured on the BSC for all cells in the BSC range, in a message sent by the BSC to the MSC. , use the reserved field or the new field to increase the channel allocation parameters. The party The method includes the following steps:

Step 201: The terminal a initiates a trunking call, and sends the cluster call request information to the BSC. Step 202: The BSC receives the cluster call request information sent by the terminal a, and checks the channel load of the cell where the terminal a is located by the user in the cell where the terminal a is located, and obtains the channel load of the cell where the terminal a is located.

Step 203: The BSC determines whether the channel load of the cell in which the terminal a is located exceeds the channel load threshold configured for all the cells. If yes, step 204 is performed; otherwise, the step is performed.

206.

Step 204: The BSC fills in the channel allocation parameter added by using the reserved field or the newly added field, and fills in information requesting the allocation of the cluster 1.0 channel, and sends a message carrying the channel allocation parameter to the MSC.

Step 205: The MSC receives the message that is sent by the BSC and carries the channel allocation parameter, and obtains the information of the channel 1 and 0 that is required to be allocated from the channel allocation parameter of the message, and allocates the cluster 1.0 channel for the terminal a, and ends the process.

Step 206: The BSC fills in the channel allocation parameter added by using the reserved field or the newly added field, and fills in information requesting the allocation of the cluster 1.5 channel, and sends a message carrying the channel allocation parameter to the MSC.

Step 207: The MSC receives the message that is sent by the BSC and carries the channel allocation parameter, and obtains the 1.5 channel information of the required allocation cluster from the channel allocation parameter of the message, and allocates the cluster 1.5 channel for the terminal a.

3 is a flow chart of a method for allocating channels according to a second embodiment of the present invention. Referring to FIG. 1B and FIG. 3, in this embodiment, the channel mode determining unit of the system is integrated in the MSC, and a channel load threshold is configured on the MSC for all cells in the MSC range, in the message sent by the BSC to the MSC. Use the reserved field or the new field to increase the channel load parameter. The method also includes the following steps: Step 301: The terminal b initiates a cluster call, and sends the cluster call request information to the BSC. Step 302: The BSC receives the cluster call request information sent by the terminal b, and checks the channel load of the cell where the terminal b is located in the cell where the terminal b is located in the cell where the terminal b is located, and obtains the channel load of the cell where the terminal b is located.

Step 303: The BSC fills in the channel load of the cell where the terminal b is located to the channel load parameter added by using the reserved field or the added field, and sends a message carrying the channel load parameter to the MSC.

Step 304: The MSC receives the message that is sent by the BSC and carries the channel load parameter, and obtains the channel load of the cell where the terminal b is located from the channel load parameter of the message.

Step 305: The MSC determines whether the channel load of the cell where the terminal b is located exceeds the channel load threshold configured for all the cells. If yes, go to step 306; otherwise, go to step 307.

Step 306: The MSC allocates a cluster 1.0 channel for the terminal b, and ends the process.

Step 307: The MSC allocates a cluster 1.5 channel for the terminal b.

In the first embodiment of the present invention, a channel load threshold is configured for all cells in the BSC range on the BSC, and in step 203, the BSC determines whether the channel load of the cell where the terminal a is located exceeds a channel load threshold configured for all cells. . In a practical application, a channel load threshold may be configured for each cell in the BSC range on the BSC. In step 203, the BSC determines whether the channel load of the cell where the terminal a is located exceeds the channel load threshold configured for the cell where the terminal a is located. . Such a technical solution is inconsistent with the idea of the technical solution of the present invention and should be included in the scope of protection of the present invention.

In the second embodiment of the present invention, a channel load threshold is configured for all cells in the MSC range on the MSC. In step 305, the MSC determines whether the channel load of the cell where the terminal b is located exceeds a channel load threshold configured for all cells. . In practical applications, each channel in the MSC can also be configured with a channel load threshold on the MSC. In step 305, the MSC determines whether the channel load of the cell where the terminal b is located exceeds the channel load threshold configured for the cell where the terminal b is located. Such a technical solution is consistent with the idea of the technical solution of the present invention and should be included in the scope of protection of the present invention.

It should be noted that, in the above various embodiments, the mode determining unit in the system is integrated on the BSC or the MSC. In the actual service implementation, the mode determining unit may also be set on a newly added device or on an existing device independent of the BSC and the MSC. In this case, the specific embodiment described above, for the purpose of the present invention, The present invention has been described in detail with reference to the preferred embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., are intended to be included within the scope of the present invention.

Claims

Claim

A method for allocating a channel, characterized in that a channel load threshold is configured, and a cluster 1.0 channel mode and a cluster 1.5 channel mode are configured on a mobile switching center MSC, and the method further comprises the following steps:

After receiving the request reported by the terminal, the base station controller BSC checks the channel load of the cell where the terminal is located;

Determining whether the channel load of the cell where the terminal is located exceeds the configured channel load threshold. If yes, the MSC allocates a cluster 1.0 channel for the terminal; otherwise, the MSC allocates a cluster 1.5 channel for the terminal.

The method according to claim 1, wherein the channel load threshold is configured on the BSC;

The determining whether the channel load of the cell where the terminal is located exceeds the configured channel load threshold is performed by the BSC.

The method according to claim 2, wherein in the message sent by the BSC to the MSC, the channel allocation parameter is added by using a reserved field or a new field;

If it is determined that the channel load of the cell where the terminal is located exceeds the pre-configured channel load threshold, the method further includes: the BSC filling in the channel allocation parameter with the information required to allocate the cluster 1.0 channel, and sending a message carrying the channel allocation parameter to the MSC;

The MSC performs the allocation of the cluster 1.0 channel for the terminal according to the channel allocation parameter carried in the received message.

If it is determined that the channel load of the cell where the terminal is located does not exceed the pre-configured channel load threshold, the BSC further includes: the BSC fills in the channel allocation parameter with information about the 1.5 channel allocated to the cluster, and sends a message carrying the channel allocation parameter to the MSC. ; The MSC performs the allocation of the cluster 1.5 channel for the terminal according to the channel allocation parameter carried in the received message.

The method according to claim 1, wherein the channel load threshold is configured on the MSC;

The determining, by the MSC, whether the channel load of the cell where the terminal is located exceeds the configured channel load threshold.

The method according to claim 5, wherein in the message sent by the BSC to the MSC, the channel load parameter is added by using a reserved field or a new field;

After the channel load of the cell where the terminal is located, the method further includes: the BSC filling in the channel load information of the cell where the terminal is inspected into the added channel load parameter, and sending a message carrying the channel load parameter to the MSC, the MSC Obtaining the channel load of the cell where the terminal is located according to the channel load parameter in the received message.

The method according to claim 1, wherein the configuring a channel load threshold comprises: configuring a channel load threshold for all cells in a BSC or MSC range; and determining whether a channel load of a cell in which the terminal is located exceeds a configuration. The channel load threshold includes: determining whether the channel load of the cell where the terminal is located exceeds a channel load threshold configured for all cells.

The method according to claim 1, wherein the configuring the channel load threshold comprises: configuring a channel load threshold for each cell in the BSC or MSC range; and determining whether the channel load of the cell where the terminal is located is Exceeding the configured channel load threshold includes: determining whether the channel load of the cell where the terminal is located exceeds a channel load threshold configured for the cell where the terminal is located.

The BSC receives the request reported by the terminal, checks the channel load of the cell where the terminal is located, and checks The channel load information of the cell in which the terminal is located is output to the channel mode determining unit. The channel mode determining unit saves the configured channel load threshold, and determines according to the channel load information of the received cell and the saved channel load threshold. Channel mode, outputting the determined channel mode information to the MSC;

10. The system according to claim 9, wherein the channel mode determining unit is set on a newly added device, or is disposed on an existing device independent of the BSC and the MSC, or integrated in the BSC, or integrated. In the MSC.