WO2013056549A1

WO2013056549A1 - Method and system for controlling common channel in cluster communication system

Info

Publication number: WO2013056549A1
Application number: PCT/CN2012/075477
Authority: WO
Inventors: 刘亮华; 杨日
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-10-20
Filing date: 2012-05-14
Publication date: 2013-04-25
Also published as: CN102438208B; CN102438208A

Abstract

The present invention provides a method and a system for controlling a common channel in a cluster communication system. The method comprises: acquiring link performance index parameters for controlling a common channel; judging whether the channel is abnormal according to the acquired link performance index parameters; when the channel is abnormal, optimizing the common channel on the basis of the abnormality. The present invention can effectively monitor the work condition of the common channel, locate the abnormality of the common channel, and perform optimization targeted at the abnormality, thereby achieving effective control of the common channel.

Description

Method and system for controlling common channel in trunking communication system

The present invention relates to the field of communications, and in particular, to a method and system for controlling a common channel in a trunking communication system. Background technique

The digital trunking communication system GoTa based on the third generation mobile communication technology adopts a PTT (Push To Talk) voice call unique to the cluster communication. The PTT voice call can share the same air channel in the same group in the same cell when the call is implemented; the PTT common channel is used on the air interface, and the GoTa terminal is connected to the GoTa system through the air interface to support each provided by the GoTa system. Cluster services, general telephone services, supplementary services, short message services, and data services. The GoTa cluster system is compatible with existing CDMA (Code Division Multiple Access) air interface standards, reducing the air chain of group calls. Road transmission improves channel utilization; at the same time, PTT also provides fast voice connection and one-to-many voice connection for group users. However, current control schemes for PTT common channel link performance, such as anomaly detection and optimization processing of the common channel, are not provided in the prior art. Summary of the invention

The invention provides an effective method and system for controlling a common channel in a trunking communication system. In order to solve the above technical problems, the present invention adopts the following technical solutions:

A method for controlling a common channel in a trunking communication system, comprising:

Obtaining link performance indicator parameters for common channel control;

Determining whether the channel is abnormal according to the obtained link performance indicator parameter;

When the channel is abnormal, the common channel is optimized according to an abnormal situation. The link performance indicator parameter includes a forward theoretical frame number;

The obtaining link performance indicator parameters for common channel control is:

Obtaining a forward theoretical frame number of the common channel control within the preset time granularity;

Determining whether the channel is abnormal according to the obtained link performance indicator parameter:

Comparing the number of forward theoretical frames counted in the preset time granularity with a preset forward theoretical frame number threshold; when the forward theoretical frame number exceeds the forward theoretical frame number threshold, determining It is abnormal, otherwise it is judged to be normal.

The link performance indicator parameter includes a reverse theoretical frame number;

And obtaining the link performance indicator parameter used for common channel control is: acquiring a reverse theoretical frame number of the common channel control in the preset time granularity;

And determining, according to the obtained link performance indicator parameter, whether the channel is abnormal: a value comparison; when the reverse theoretical frame number exceeds the reverse theoretical frame number threshold, the determination is abnormal, otherwise, the determination is normal.

The optimizing the common channel according to the abnormal situation is: recording the abnormal number of times, and determining whether the accumulated abnormal number exceeds a preset maximum abnormal number, and when the maximum abnormal number is exceeded, performing a reset channel board operation.

The link performance indicator parameter includes a forward actual transmission frame number and a forward theoretical frame number; and the obtained link performance indicator parameter used for common channel control is:

Setting a plurality of identical time granularities in a preset time range to obtain forward actual transmission frames and forward theoretical frames in each time granularity;

Calculating a ratio of the number of forward actual transmission frames to the number of forward theoretical frames in each time granularity; selecting the largest ratio as the forward peak utilization; and using the forward peak utilization rate and the preset forward peak utilization threshold Limit comparison; when the forward peak utilization exceeds the forward peak utilization threshold When the limit is exceeded, it is judged as abnormal. Otherwise, it is judged as normal.

The link performance indicator parameter includes a reverse actual transmission frame number and a reverse theoretical frame number; and the obtained link performance indicator parameters used for common channel control are:

Setting a plurality of identical time granularities in a preset time range to obtain a reverse actual transmission frame number and a reverse theoretical frame number in each time granularity;

Calculating the ratio of the number of reverse actual transmission frames to the number of reverse theoretical frames in each time granularity; selecting the largest ratio as the reverse peak utilization; when using the reverse peak utilization and the preset inverse peak value , judged to be abnormal, otherwise, judged to be normal.

The optimizing the common channel according to the abnormal situation is: reporting an alarm, indicating an abnormal situation, and carrying an optimization processing scheme in the alarm additional information.

A control system for a common channel in a trunking communication system, comprising a parameter obtaining block, an abnormality determining module and a control module, wherein

The parameter obtaining module is configured to obtain a link performance indicator parameter for the common channel control, and the abnormality determining module is configured to determine, according to the link performance indicator parameter acquired by the parameter obtaining module, whether the channel is abnormal;

The control module is configured to perform optimization processing on the common channel according to an abnormal situation when the abnormality determining module determines that the result is abnormal.

The parameter obtaining module is specifically configured to obtain a forward theoretical frame number of the common channel control in the preset time granularity; or obtain a reverse theoretical frame number of the common channel control in the preset time granularity; the abnormality determining module is specifically used Comparing the number of forward theoretical frames counted by the parameter acquisition module in a preset time granularity with a preset forward theoretical frame number threshold, and comparing the theoretical frame number threshold according to the comparison result, and determining according to the comparison result Whether it is abnormal; The control module is specifically configured to: when the abnormality determining module determines that the abnormality is abnormal, record an abnormal number of times, and determine whether the accumulated abnormal number exceeds a preset maximum abnormal number, and when the maximum abnormal number is exceeded, perform a reset channel. Board operation.

The parameter obtaining module is configured to set a plurality of the same time granularity in a preset time range, and obtain a forward actual transmission frame number and a forward theoretical frame number in each time granularity; or set in a preset time range. Multiple identical time granularities, obtaining the number of reverse actual transmission frames and the number of reverse theoretical frames in each time granularity;

The abnormality determining module is specifically configured to calculate a forward actual transmission frame number and a forward direction in each time granularity according to the forward actual transmission frame number and the forward theoretical frame number in each time granularity acquired by the parameter obtaining module. Ratio of the number of theoretical frames, selecting the largest ratio as the forward peak utilization, and comparing the forward peak utilization with a preset forward peak utilization threshold, and determining whether the abnormality is abnormal according to the comparison result; The reverse actual transmission frame number and the reverse theoretical frame number in each time granularity obtained by the parameter acquisition module are calculated, and the ratio of the reverse actual transmission frame number to the reverse theoretical frame number in each time granularity is calculated, and the maximum ratio is selected as the maximum ratio. The reverse peak utilization, and whether the abnormality is caused; the control module is specifically configured to report an alarm when the abnormality determining module determines that the abnormality is abnormal, and present an optimization processing scheme in the alarm additional information.

The present invention provides a method and system for controlling a common channel in a trunking communication system, and obtains a link performance indicator parameter for common channel control, and determines whether the channel is abnormal according to the obtained link performance index parameter. Optimize the common channel. It can effectively monitor the working condition of the common channel, and locate the abnormal situation of the common channel, optimize the processing for the abnormal situation, and realize the effective control of the common channel. DRAWINGS

1 is a flowchart of a method for controlling a common channel in a trunking communication system according to an embodiment of the present invention; FIG. 2 is a flowchart of a method for controlling a common channel in a trunking communication system according to another embodiment of the present invention; Figure

FIG. 3 is a schematic diagram of a control system of a common channel in a trunking communication system according to an embodiment of the present invention. detailed description

1 is a flow chart of a method for controlling a common channel in a trunking communication system according to an embodiment of the present invention, and FIG.

S11. Obtain link performance indicator parameters used for common channel control.

512, determining whether the channel is abnormal according to the obtained link performance indicator parameter, if abnormal, executing step S13, otherwise, repeating step S11;

513. Optimize the common channel according to the abnormal situation.

In step S11, the acquisition may be real-time or timing; in step S13, different optimization processing is performed for different abnormal situations.

The present invention will be further described in detail below with reference to the accompanying drawings.

2 is a flow chart showing control of a common channel in a trunking communication system according to another embodiment of the present invention, please refer to FIG. 2:

S21: Collecting the number of forward theoretical frames, the number of reverse theoretical frames, the number of forward actual transmission frames, and the number of reverse actual transmission frames according to timing (such as collecting once every certain time T1);

In the method of collecting the forward theoretical frame number: In the normal channel condition, the forward theoretical frame number is counted in the preset time granularity T2 (T2 < T1). If the channel board reset occurs during the acquisition, the channel board reset returns to normal. After the operation, the number of forward theoretical frames in the preset time granularity T2 is re-acquired, and the acquisition method is consistent with the normal operation of the channel board;

In the method of collecting the reverse theoretical frame number, the number of reverse theoretical frames is counted in the preset time granularity T2. If the channel board reset occurs during the acquisition, after the channel board resets and resumes normal operation, the preset time granularity T2 is re-acquired. The number of reverse theoretical frames, the acquisition method is consistent with the normal operation of the channel board; In the method of collecting the number of forwarded actual transmission frames: When writing a frame to the forward common channel, if the frame is ready to be transmitted, the frame is considered to be actual. The transmitted frame, the number of forward actual transmission frames is increased by one; In the method of collecting the number of reverse actual transmission frames: for the full rate mode, the CRC (Cyclic Redundancy Code) check is considered to be a valid frame, and then 2 is accumulated (since the PTT call message consists of 2 frames) ), for non-full rate mode frames such as one-half, one-quarter, and one-eighth, and full-rate mode frames that do not pass the CRC check, no statistics are performed;

522. Calculate forward peak utilization and reverse peak utilization;

The calculation method of the forward peak utilization rate may include: It is assumed that T1 can be divided into n T2s, and the number of forward actual transmission frames and the forward theoretical frame number in each T2 time are obtained in step S21, and each T2 time is calculated in step S22. The ratio of the number of actual forward transmission frames to the number of forward theoretical frames, and the largest ratio is used as the forward peak utilization.

The calculation method of the reverse peak utilization may include: assuming that T1 can be divided into n T2s, obtaining the number of reverse actual transmission frames and the number of reverse theoretical frames in each T2 time in step S21, and calculating each T2 time in step S22. The ratio of the number of actual transmission frames in the reverse direction to the number of reverse theoretical frames, and the maximum ratio is used as the reverse peak utilization.

For example, if T1=30 minutes, Τ2=10 seconds, η=180, the number of forward actual transmission frames and the forward theoretical frame number in every 10 seconds are obtained in step S21, and the forward actual transmission is calculated every 10 seconds in step S22. The ratio of the number of frames to the number of forward theoretical frames, and the largest ratio is selected from the 180 ratios as the forward peak utilization.

523. Determine whether the channel is abnormal. If the error is abnormal, go to step S24. Otherwise, repeat step S21.

The method for determining whether the channel is abnormal may include: comparing the number of forward theoretical frames in the preset time granularity T2 with a preset threshold value of the forward theoretical frame, and determining whether the number of forward theoretical frames collected exceeds the forward theory. The number of frame thresholds, if yes, it is judged to be abnormal, otherwise it is judged to be normal; the limit comparison is used to determine whether the number of reverse theoretical frames collected exceeds the threshold number of reverse theoretical frames, and if so, it is determined to be abnormal. Otherwise judged to be normal; or the forward direction calculated in step S22 The peak utilization is compared with the preset forward peak utilization threshold. If the calculated forward peak utilization exceeds the forward peak utilization threshold, it is determined to be abnormal, otherwise it is determined to be normal; or step S22 is performed. The calculated reverse peak utilization is compared with the preset reverse peak utilization threshold; if the calculated reverse peak utilization exceeds the reverse peak utilization threshold, it is determined to be abnormal, otherwise it is determined as normal.

S24. Optimize the common channel according to the abnormal situation;

The method for optimizing the common channel according to the abnormal situation may include:

If the abnormality caused by the forward theoretical frame number exceeding the forward theoretical frame number threshold value or the abnormality caused by the reverse theoretical frame number exceeding the reverse theoretical frame number threshold value in step S23, the description may be A fault occurs in the paging schedule, the number of abnormalities is recorded, and it is determined whether the accumulated abnormal number exceeds the preset maximum number of abnormalities, and if so, the reset channel board operation is performed. It is also possible to directly perform the reset channel board operation without accumulating the number of abnormal times and comparing with the maximum number of abnormal times; if the abnormality caused by the forward peak utilization value calculated in step S22 exceeds the forward peak utilization threshold value in step S23; Or, because the reverse peak utilization calculated in step S22 exceeds the abnormal value of the reverse peak utilization threshold, it may indicate that the paging overload is required, the alarm is required to be reported, the abnormal situation is prompted, and the alarm additional information is provided. Carrying an optimized processing solution.

In practical applications, the link performance indicator parameters are not limited to the forward theoretical frame number, the reverse theoretical frame number, the forward actual transmission frame number, the reverse actual transmission frame number, or the reverse invalid frame number, and the reverse direction. The effective frame number, the forward peak value, the reverse peak value, etc., correspondingly, whether the channel is abnormal according to the link performance index parameter such as the reverse invalid frame number, the reverse effective frame number, the forward peak value, and the reverse peak value, if the channel is abnormal , the common channel is optimized according to the abnormal situation.

In this embodiment, by collecting the link performance indicator parameters, the working condition of the common channel can be intuitively understood, and the collected link performance indicator parameters are analyzed, and once an abnormality occurs, the FIG. 3 is a schematic diagram of a control system of a common channel in a trunking communication system according to an embodiment of the present invention. Please refer to FIG. 3:

The system includes a parameter acquisition module 31, an abnormality determination module 32, and a control module 33, wherein the parameter acquisition module 31 is configured to obtain a link performance indicator parameter; the abnormality determination module 32 is configured to acquire the link according to the parameter acquisition module 31. The performance indicator parameter determines whether the channel is abnormal. The control module 33 is configured to perform optimization processing on the common channel according to the abnormal situation when the abnormality determining module 32 determines that the abnormality is abnormal.

Further, the link performance indicator parameters include a forward theoretical frame number, a reverse theoretical frame number, a forward actual transmission frame number, a reverse actual transmission frame number, and the like.

Further, the parameter obtaining module 31 is specifically configured to obtain a forward theoretical frame number of the common channel control in the preset time granularity; or to obtain a reverse theoretical frame number of the common channel control in the preset time granularity; Comparing the number of forward theoretical frames counted by the parameter obtaining module 31 in the preset time granularity with a preset forward theoretical frame number threshold, if the forward theoretical frame number exceeds the forward theoretical frame number threshold, If the abnormality determination module 32 determines that the abnormality is abnormal, the parameter acquisition module 31 is determined to be abnormal when the abnormality determination module 32 exceeds the reverse theoretical frame number threshold. The number of abnormalities, and whether the accumulated abnormal number exceeds the preset maximum number of abnormalities. If yes, the reset channel board operation is performed.

Further, the parameter obtaining block 31 is specifically configured to set a plurality of the same time granularity in a preset time range, and obtain the forward actual transmission frame number and the forward theoretical frame number in each time granularity; or at a preset time A plurality of the same time granularity is set in the range, and the number of reverse actual transmission frames and the number of reverse theoretical frames in each time granularity are obtained. The abnormality determining module 32 is specifically configured to forward according to each time granularity acquired by the parameter obtaining module 31. The actual number of transmitted frames and the number of forward theoretical frames, the ratio of the number of forward actual transmission frames to the number of forward theoretical frames in each time granularity is calculated, and the maximum ratio is selected as the forward peak utilization, and the forward peak is utilized. Rate and preset forward peak utilization threshold If the forward peak utilization exceeds the forward peak utilization threshold, it is determined to be abnormal; or calculated according to the reverse actual transmission frame number and the reverse theoretical frame number in each time granularity acquired by the parameter acquisition module 31. The ratio of the number of reverse actual transmission frames to the number of reverse theoretical frames in each time granularity, selects the largest ratio as the reverse peak utilization, and sets the reverse peak utilization to the preset reverse peak utilization threshold. If the reverse peak utilization exceeds the reverse peak utilization threshold, the value is determined to be abnormal. The control module 33 is specifically configured to report an alarm when the abnormality determining module 32 determines that the abnormality is abnormal, and The alarm additional information carries an optimized processing solution. It is to be understood that the specific embodiments of the invention are limited only by the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims

Claim

A method for controlling a common channel in a trunking communication system, the method comprising:

Obtaining link performance indicator parameters for common channel control;

When the channel is abnormal, the common channel is optimized according to an abnormal situation.

2. The method according to claim 1, wherein the link performance indicator parameter comprises a forward theoretical frame number;

3. The method according to claim 1, wherein the link performance indicator parameter comprises a reverse theoretical frame number;

Obtaining a reverse theoretical frame number of the common channel control within the preset time granularity;

The method according to claim 2 or 3, wherein the optimizing the common channel according to the abnormal situation is:

Record the number of abnormalities, and determine whether the accumulated number of abnormalities exceeds the preset maximum number of abnormalities. When the maximum number of abnormalities is exceeded, the reset channel board operation is performed.

The method according to claim 1, wherein the link performance indicator parameter comprises a forward actual transmission frame number and a forward theoretical frame number;

Calculating the ratio of the number of forward actual transmission frames to the number of forward theoretical frames in each time granularity; selecting the largest ratio as the forward peak utilization;

Comparing the forward peak utilization rate with a preset forward peak utilization threshold; when the forward peak utilization exceeds the forward peak utilization threshold, determining that the abnormality is abnormal, otherwise, determining It is normal.

The method according to claim 1, wherein the link performance indicator parameter comprises a reverse actual transmission frame number and a reverse theoretical frame number;

Calculating the ratio of the number of reverse actual transmission frames in each time granularity to the number of reverse theoretical frames; selecting the largest ratio as the reverse peak utilization;

It is judged to be normal.

The method according to claim 5 or 6, wherein the optimizing the common channel according to the abnormal situation is: Report the alarm, prompt the abnormal situation, and carry the optimization processing plan in the alarm additional information.

A control system for a common channel in a trunking communication system, wherein the system includes a parameter acquisition module, an abnormality determination module, and a control module, where

The system of claim 8, wherein the parameter obtaining module is configured to obtain a forward theoretical frame number of a common channel control within a preset time granularity; or obtain a common channel within a preset time granularity The number of reverse theoretical frames controlled;

The abnormality determining module is specifically configured to compare the number of forward theoretical frames counted by the parameter obtaining module in a preset time granularity with a preset forward theoretical frame number threshold, and determine the theoretical frame number according to the comparison result. The comparison of the limits determines whether the abnormality is based on the comparison result;

The control module is specifically configured to: when the abnormality determining module determines that the abnormality is abnormal, record an abnormal number of times, and determine whether the accumulated abnormal number exceeds a preset maximum abnormal number, and when the maximum abnormal number is exceeded, perform a reset channel. Board operation.

The system according to claim 8, wherein the parameter obtaining module is configured to set a plurality of the same time granularity in a preset time range, and obtain the number of forward actual transmission frames in each time granularity. And the number of forward theoretical frames; or, setting a plurality of the same time granularity in the preset time range, and obtaining the reverse actual transmission frame number and the reverse theoretical frame number in each time granularity; the abnormality determining module is specifically used Calculating a ratio of the number of forward actual transmission frames to the number of forward theoretical frames in each time granularity according to the number of forward actual transmission frames and the number of forward theoretical frames in each time granularity acquired by the parameter obtaining module, and selecting the maximum Ratio as forward peak utilization, Comparing the forward peak utilization rate with a preset forward peak utilization threshold value, and determining whether the abnormality is abnormal according to the comparison result; or, according to the reverse actual transmission frame in each time granularity acquired by the parameter obtaining module Number and reverse theoretical frame number, calculate the ratio of the number of reverse actual transmission frames and the number of reverse theoretical frames in each time granularity, select the largest ratio as the reverse peak utilization, and whether the interruption is abnormal;

The control module is specifically configured to: when the abnormality determining module determines that the abnormality is abnormal, report an alarm, prompt an abnormal situation, and carry an optimization processing scheme in the alarm additional information.