CN1314283C - Group call area setting method for cluster communication system - Google Patents

Abstract

The invention discloses a method for setting a group call area in a trunking communication system. The method includes: A) the trunking user group side reports a group call area adjustment request to the network side, and the request carries the group number of the trunking user group and the distribution topology of the base station The sector information corresponding to the figure; B) The network side reassigns the group call area and returns the group call area adjustment result. The group call area adjustment request may be reported by any user of the trunking user group, forwarded by the trunking dispatcher of the group, or reported by the trunking dispatcher of the trunking user group. The reallocating group call area is to re-allocate the group call area for the trunking user group according to the adjusted group call area requirements and in combination with the base station distribution topology map. The invention can meet the actual needs of the cluster user group with the requirement of dynamically adjusting the active area, and dynamically set the group call area.

Description

Method for setting group call area in trunking communication system

technical field

The invention relates to trunking communication technology, in particular to a method for setting group call areas in a trunking communication system.

Background technique

The digital cellular network trunking communication system is a dedicated dispatching communication system. Multiple users (departments, groups) share a set of wireless channels and use these channels dynamically. On the one hand, the trunking communication system can enable multiple trunking users to share wireless resources and increase the capacity of the wireless cellular system. On the other hand, the trunking function provided by the trunking communication system can meet the special requirements of some special users.

In practical applications, most cluster users are business users who are active within a certain range. For example, enterprise cluster users have a small range of activities. Compared with the coverage of the entire network, enterprise cluster users are generally concentrated within the coverage of certain consecutive sectors of the entire network. In order to avoid wasting resources, the trunking communication system should define its own active area for each group of trunking users as its group call area. The group call area is defined by the sector list of each group and stored in the trunking service center. When a group call occurs, the system first judges whether the call is legal according to the saved group number and its corresponding group call area, that is, the sector list. The call sets up system resources such as shared channels. If the call exceeds the range of the group call area list, the call will be rejected.

At present, the setting of the group call area is determined with the trunking communication system when the trunking user group opens an account, and generally cannot be modified during use. It is not suitable for cluster user groups with a large range of activities, a small amount of mobility requirements, or a certain change in the range of activities. For example:

Cluster user groups with a large range of activities, such as the public security system, may be active in a number of discretely distributed activity areas such as train stations, docks, and airports during arrests. This type of cluster user group is widely distributed and discrete. According to the current method for determining a group call area, it is necessary to establish a group call area in the entire network. However, except for the channels and other resources in several local sectors at that time, the channel resources established for this group by other sectors of the whole network did not play a real role.

A trunking user group with a small amount of mobility requirements, such as an enterprise trunking user group, most of the time the trunking user group is stable in its planned group call area, but it may have short-term needs such as group outings and conferences, and hopes to A trunked communication system can also be used during this period. Such a mobility requirement cannot be smoothly satisfied by the current trunking communication system.

For a cluster user group whose activity range changes regularly, for example, the factory and dormitory of an enterprise are far away, and employees are in the factory during the daytime work, the group call activity range can be established in the factory workshop, without adding the dormitory to the activity area, and leaving work Afterwards, a group call activity range is established in the dormitory area. If the trunking users with certain activity rules use the current group call area setting method of the trunking system, a large amount of channel resources will be wasted.

The above-mentioned trunking user groups with a large range of activities, a small amount of mobility requirements, or certain changes in the scope of activities can be summarized as trunking user groups with the need to dynamically adjust the activity area. The current trunking communication system group call area design Certain methods cannot meet the needs of such users, so it is also difficult to meet the mobility requirements of cluster user groups.

Contents of the invention

The purpose of the present invention is to provide a method for group call area setting in a trunking communication system to meet the actual needs of a trunking user group that needs to dynamically adjust the active area, and dynamically set its group call area.

The present invention is realized through the following technical solutions:

A method for setting a group call area in a trunking communication system, the method comprising:

A) The trunking user group reports the group call area adjustment request to the network side, and the request carries the sector information corresponding to the trunking user group number and the base station distribution topology map;

B) The network side allocates the group call area.

The steps between step A and step B further include that the network side judges whether group call area adjustment is allowed according to the current resource allocation situation, and if so, execute step B, otherwise execute step A again.

Said step A includes that any user of the trunking user group first reports to the trunking dispatching station of the group a group call area adjustment request carrying the trunking user group number, the request carrying the trunking user group number, and the trunking dispatching station Then carry the sector information corresponding to the base station distribution topology map and forward the request to the network side; the step B further includes, the network side returns the group call area adjustment result to all users of the cluster user group through forwarding by the cluster dispatcher.

The step A further includes that the trunking dispatcher of the trunking user group directly reports the group call area adjustment request to the network side, and the request directly carries the group number of the trunking user group and the sector information corresponding to the base station distribution topology map; the step B further includes that the network side directly returns the group call area adjustment result to the trunking dispatcher.

The step B further includes that the trunking dispatcher of the trunking user group draws up a reorganization plan, and after the network side receives the group call area adjustment request, allocates the group call area according to the reorganization plan.

The reorganization plan is pre-stored on the network side, or is pre-stored on the trunking user terminal side, and is reported to the network side together with the group call area adjustment request.

The step B includes reassigning the group call area for the trunking user group according to the adjusted group call area requirements and in combination with the sector information corresponding to the base station distribution topology map.

The step B includes detecting the current sector position of the cluster user group user or the cluster dispatcher, taking the current sector as the center, and taking several surrounding sectors as the radius, and assigning different user levels according to different cluster user groups. The size of the radius is used to allocate the group call area.

The group call area adjustment request is reported by voice or short message. The group call area adjustment result is returned in the form of voice or short message. The network side includes at least a cluster service center.

The method for setting the group call area of the trunking communication system provided by the present invention, by reporting the group call area adjustment request to the network side, the network side redistributes the group call area, and realizes that the trunking user group dynamically adjusts the group call area of the trunking user according to the needs , compared with the prior art, has the following characteristics:

(1) Since the group call area can be dynamically set, resources can be allocated more rationally, precious wireless resources are saved, and capacity is expanded.

(2) It can meet the mobility requirements of the trunking user group, so that the trunking user group is no longer limited to a fixed group call area, expands the scope of the group call, and allocates resources on demand, which is more in line with the user's usage habits.

(3) The reorganization plan drawn up by the cluster dispatcher can be better applied to pre-planned activities, or to the activities of cluster user groups that change regularly according to time and area, or to accidental changes in extraordinary periods.

(4) Using the trunking dispatcher to have the right to apply for group call area adjustments and perform hierarchical control can avoid randomness and conflicts in resource allocation.

Description of drawings

Figure 1 shows the process of setting a group call area initiated by any user in a trunking user group.

Fig. 2 shows the process of setting the group call area initiated by the trunking dispatcher.

Detailed ways

The existing group call area setting is determined when the trunking user group opens an account, and since it cannot be dynamically modified, the moving range of the trunking user group is limited. In the present invention, the group call area adjustment request is reported to the network side by the trunking user group side, the network side redistributes the group call area, and returns the group call area allocation result to the trunking user group side, thereby realizing the dynamic setting of the group call area. A detailed description will be given below in conjunction with the accompanying drawings.

The call of the trunking service is a collective behavior, and only when all the trunking users in the group are within the receiving range of the group call area agreed by the group in advance can they be effectively answered. Therefore, the active area of each group of cluster users is generally predictable. The predictability of the activity range of the trunking user group becomes the factual basis for setting the group call area.

Referring to FIG. 1 , FIG. 1 shows the process of setting a group call area initiated by any user in the trunking user group. The specific process is as follows:

When any user in the trunking user group needs to adjust the group call area, the user sends a group call area adjustment request carrying the trunking user group number to the trunking dispatcher of the trunking user group by voice or short message, and the trunking user group The dispatcher makes the request carry the sector information corresponding to the distribution topology map of the base station and forwards it to the cluster service center. The base station distribution topology map and its corresponding sector information are usually stored on the terminal of the network management system on the network side. For the wired cluster dispatcher, since the wired cluster dispatcher can be connected to the terminal of the network management system, the base station can be directly obtained. The sector information corresponding to the distribution topology diagram; for the wireless cluster dispatching station, the sector information corresponding to the base station distribution topology diagram can be sent to the wireless trunking dispatching station through the network side and stored.

Then, because the change of the group call area may bring about the change of network resource allocation, the trunking service center decides whether to allow the request according to the current resource allocation situation and the resource allocation algorithm. Combine the sector information corresponding to the base station distribution topology map to allocate a new group call area for the trunking group, modify the sector list, and save it in the trunking service center, and then the trunking service center notifies the trunking group by voice or short message through the trunking dispatcher The result of the group call area adjustment of the user; if the request is not allowed, the user resends the group call area adjustment request, and the sector list remains unchanged.

The above-mentioned group call area adjustment request is reported by any user in the trunking user group. If all the users in the trunking user group send group call area adjustment requests, it will bring a great impact on network resources. Therefore, in the present invention, only high-level users in the trunking user group, such as the trunking dispatcher, can report the group call area adjustment request. The specific implementation is shown in FIG. 2 .

Figure 2 shows the process of setting the group call area initiated by the trunking dispatcher. When the trunking user group needs to adjust the group call area, the trunking dispatcher sends a group call area adjustment request to the trunking service center by means of voice or short message. area information; since changes in the group call area may lead to changes in network resource allocation, the trunking service center decides whether to allow the request based on the current resource allocation situation and the resource allocation algorithm, and if allowed, according to the dynamically adjusted demand for the group call area And combined with the sector information corresponding to the distribution topology map of the base station, allocate a new group call area for the trunking user group, modify the sector list, and save it in the trunking service center, and then the trunking service center notifies the trunking dispatcher of the trunking group by voice or short message The result of the group call area adjustment of the user group; if the request is not allowed, the group call area adjustment request is resent, and the sector list remains unchanged.

For trunking user groups with a certain change in the scope of activities, or a group of trunking user groups with strong regularity over time or regions, several reorganization plans can be drawn up according to the changing rules of the group call area. When there is a need to adjust the group call area Send the reorganization plan together with the group call area adjustment request to the trunking service center, or store the reorganization plan in the trunking service center in advance. After receiving the group call area adjustment request, the trunking service center automatically organizes the group call area designated by the reorganization plan It becomes the temporary group call area list of the trunking group and is defined with the sector list. This method of reorganization planning is beneficial to tools for dealing with disasters or important events or temporary activities. It enables the trunking communication system to store reorganization plans for major situations, adjust call modes and areas appropriately, and improve work efficiency.

The present invention can also be combined with positioning technology to allocate new group call areas for trunking user groups. For example, the positioning system on the network side detects the current sector position of the cluster user group users or the cluster dispatcher, and the cluster service center takes this sector as the center and several fixed sectors around it as the radius, or calculates by a certain algorithm The resulting radius dynamically determines a number of sectors, and assigns different radius sizes to allocate group call areas according to different user levels.

Claims (11)

1. A method for group call area setting of a trunking communication system, characterized in that the method comprises, A) The trunking user group reports the group call area adjustment request to the network side, and the request carries the sector information corresponding to the trunking user group number and the base station distribution topology map; B) The network side allocates a group call area and saves the allocated group call area. 2. The method according to claim 1, characterized in that between step A and step B further includes, the network side judges whether to allow group call area adjustment according to the current resource allocation situation, and if so, execute step B , otherwise perform step A again. 3. The method according to claim 1, wherein said step A comprises that any user of the trunking user group first reports the group call area adjustment request carrying the group number of the trunking user group to the trunking dispatcher of the group , the cluster dispatcher carries the request with the sector information corresponding to the distribution topology map of the base station and forwards it to the network side; The step B further includes that the network side returns the group call area adjustment result to all users of the trunking user group through forwarding by the trunking dispatcher. 4. The method according to claim 1, wherein said step A comprises that the trunking dispatcher of the trunking user group directly reports the group call area adjustment request to the network side, and the request directly carries the group number of the trunking user group And the sector information corresponding to the base station distribution topology map; The step B further includes that the network side directly returns the group call area adjustment result to the trunking dispatcher. 5. The method according to claim 1, characterized in that said step B further comprises that the trunking dispatcher of the trunking user group draws up a reorganization plan, and after the network side receives the group call area adjustment request, allocates the group call according to the reorganization plan area. 6. The method according to claim 5, wherein the reorganization plan is pre-stored on the network side, or the reorganization plan is pre-stored on the trunking user terminal side, and is reported together with the group call area adjustment request to network side. 7. The method according to claim 3 or 4, wherein the allocation of the group call area by the network side in step B includes, according to the needs of the adjusted group call area and combined with the sector information corresponding to the distribution topology map of the base station as a cluster The user group reassigns the group call area. 8. The method according to claim 1, wherein the allocation of the group call area by the network side in Step B includes detecting the current sector position of the trunking user group users, centering on the current sector, and taking the surrounding sectors as the center For the radius, different radius sizes are allocated according to the user level of the trunking user group to allocate the group call area. 9. The method according to claim 1, wherein the group call area adjustment request is reported by voice or short message. 10. The method according to claim 3 or 4, characterized in that the group call area adjustment result is returned in the form of voice or short message. 11. The method according to claim 1, wherein the network side includes at least a cluster service center.

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