KR20000060619A - Method for managing overhead channel of base station control module in wireless local loop - Google Patents

Abstract

PURPOSE: A method for managing an overhead channel of a RP(Radio Port) control module in a WLL(Wireless Local Loop) system is provided to effectively manage a plurality of overhead channels in a RP of the WLL by setting a flag for representing an activation state to an overhead, a service possible state and a service impossible state. CONSTITUTION: An activation identifying message to a specific overhead message is received from a physical layer managing module for managing a modem corresponding to each of overhead channel in a service impossible state.(s1) It is identified as to whether the overhead channel is an activated state, and a process is stopped when the overhead channel is the activated state.(s2) It is identified as to whether the overhead is changed when the overhead channel is not the activated state.(s3) A state of the overhead channel is changed as the activated state when the overhead is not changed.(s4) It is identified as to whether overhead channels with all types are an activated service possible state.(s5) The overhead channel is changed as the service possible state when overhead channels are the activated service possible state.(s6) The state of the overhead channel is changed as the activated state when the overhead channel is changed.(s7) A change identifying message is transmitted to a shape managing module for managing each of overhead channel.(s8) It is identified as to whether overhead channels with all types are an activated service possible state.(s9) The overhead channel is changed as the service possible state when overhead channels are the activated service possible state.(s10)

Description

Overhead channel operation of base station control module in wireless subscriber network {METHOD FOR MANAGING OVERHEAD CHANNEL OF BASE STATION CONTROL MODULE IN WIRELESS LOCAL LOOP}

The present invention relates to a system control software module implementation of a wireless local loop (WLL) base station. In particular, two statuses and an activation status flag of each overhead channel are used to perform an overhead channel establishment and switching procedure. The present invention relates to an overhead channel operating method of a wireless subscriber network base station control module.

The wireless subscriber network applies an air interface between a subscriber equipment and a local exchange. To this end, a subscriber station device is connected with a radio station unit (RIU), and the exchange side is connected with a base station (Radio Port: RP) to perform communication by a radio interface between the terminal station and the base station.

In the case of using a code division multiple access (CDMA) technique for the air interface between the terminal station and the base station, the forward channel formed in the direction of the terminal station from the base station includes a signal and traffic channel allocated to each call. In addition, each terminal includes a plurality of overhead channels that are commonly used. The base station activates the overhead channels according to the shape information and changes and transfers the modulator to effectively operate the overhead channel.

In the prior art overhead channel management method, a state machine structure having a plurality of states is generally used to implement serviceable state management and switching of a plurality of activated overhead channels.

However, when a plurality of states are defined for each overhead channel as described above, a burden arises that the control module of the base station must perform a complicated task to manage the overhead channel.

In addition to the above functions, the base station control module simultaneously performs many functions such as various radio and system resource management and physical layer activation and deactivation, so that the implementation of the overhead channel management function becomes too complicated. There have been many difficulties in stabilizing base station systems. In addition, the complicated structure of the base station control module has a problem that brings the performance degradation of various base stations.

The present invention has been made to solve the problems of the prior art operating as described above, by setting a flag indicating whether to activate for each of the overhead channel and the serviceable and unserviceable state, a plurality of base stations in the wireless subscriber network An object of the present invention is to provide an overhead channel operating method of a wireless subscriber network base station control module for effectively managing two overhead channels.

1 is a flowchart illustrating a case where an activation confirmation message is received in a non-service state according to the present invention.

2 is a flowchart illustrating a case where a change request message is received in a non-service state according to the present invention.

3 is a flowchart illustrating a case where a deactivation request message is received in a non-service state according to the present invention.

4 is a flowchart illustrating a case where an activation confirmation message is received in a serviceable state according to the present invention.

5 is a flowchart illustrating a case where a change request message is received in a serviceable state according to the present invention.

6 is a flowchart illustrating a case where a deactivation request message is received in a serviceable state according to the present invention.

In the first embodiment of the method for operating an overhead channel of a base station control module in a wireless subscriber network according to the present invention, which is designed to achieve the above object, all overhead channels are activated for each type of a plurality of overhead channels. Receiving an activation acknowledgment message (ActCfm) for a specific overhead channel from a physical layer management module managing a modem corresponding to each overhead channel in a non-out of service state (s1);

Checking whether the overhead channel is in an activated state and ending the procedure in the activated state (s2);

If the overhead channel is not activated, checking whether the overhead channel is being changed (s3);

If the overhead channel is not changing, changing the state of the overhead channel to an activated state (s4);

After changing to the activated state, checking whether at least one overhead channel of all types is in an activated serviceable state (s5);

If it is determined that the service is in a serviceable state, changing to a serviceable state (s6);

If the overhead channel is being changed, changing the state of the overhead channel to an activated state (s7);

Transmitting a change confirmation message (ChangeCfm) to the configuration management module managing each overhead channel after changing to the activated state (s8);

After transmitting the change acknowledgment message, checking whether at least one overhead channel of all types is in an activated serviceable state (s9); And

If the check result is a serviceable state, step S10 is performed.

In a second embodiment of the method for operating an overhead channel of a base station control module in a wireless subscriber network according to the present invention, each type of a plurality of overhead channels is in an out-of-service state in which all overhead channels are not activated. Receiving a change request message (ChangeReq) for a specific overhead channel from the configuration management module managing the overhead channel of (s11);

Checking whether the overhead channel is in an activated state and ending the procedure if it is in an activated state (s12);

If the overhead channel is not activated, transmitting a deactivation request message for deactivating a previous modem corresponding to the overhead channel (s13);

Setting the state of the overhead channel to being changed after transmitting the deactivation request message (s14); And

After setting the state of the overhead channel, in order to activate a new modem corresponding to the overhead channel, a step (s15) of sending an activation request message (ActReq) to the new modem is included.

According to a third embodiment of the method for operating an overhead channel of a base station control module in a wireless subscriber network according to the present invention, each type of a plurality of overhead channels is in an out-of-service state in which all overhead channels are not activated. Receiving a deactivation request message (RemoveReq) for a specific overhead channel from a configuration management module managing an overhead channel of the receiver (s21);

Checking whether the overhead channel is in an inactive state and ending the procedure if it is inactive (s22);

If the overhead channel is not in an inactive state, changing the state of the overhead channel to an inactive state (s23);

Transmitting the deactivation request message (DeactReq) to the modem corresponding to the overhead channel after changing to the deactivated state (s24); And

After the deactivation request message is transmitted, a deactivation confirmation message (RemoveCfm) is transmitted to the configuration management module (S25).

A fourth embodiment of the method for operating an overhead channel of a base station control module in a wireless subscriber network according to the present invention is that in a service state (InService) in which at least one overhead channel is activated for each type among a plurality of overhead channels. (S31) receiving an activation request message (ActCfm) for a specific overhead channel from a physical layer management module managing modems corresponding to each overhead channel;

Confirming whether the overhead channel is being changed (s32);

Changing the state of the overhead channel to an active state if it is not being changed (s35); And

If the confirmation result is being changed, changing the state of the overhead channel to an active state and transmitting a change confirmation message (ChangeCfm) to the configuration management module managing the respective overhead channels (s33) (s34) It is made to include.

In a fifth embodiment of the method for operating an overhead channel of a base station control module in a wireless subscriber network according to the present invention, at least one overhead channel for each type of a plurality of overhead channels is activated in an InService state. (S41) receiving a change request message (ChangeReq) for a specific overhead channel from a configuration management module managing each overhead channel;

Checking whether the overhead channel is activated and terminating the procedure if it is not activated (s42);

If the overhead channel is activated, transmitting a deactivation request message (DeactReq) to a previous modem corresponding to the overhead channel (s43);

Setting the state of the overhead channel to being changed after transmitting the deactivation request message (s44);

After changing the state of the overhead channel, transmitting an activation request message (ActReq) to a new modem corresponding to the overhead channel (s45);

Determining whether the overhead channel is available for service after transmitting the activation request message (s46); And

If the overhead channel is not available, a step (s47) is made to change to the unserviceable state.

In a sixth embodiment of an overhead channel operating method of a base station control module in a wireless subscriber network according to the present invention, at least one overhead channel for each type among a plurality of overhead channels is activated in an InService state. Receiving a deactivation request message (RemoveReq) for a specific overhead channel from a configuration management module managing each overhead channel;

Checking whether the overhead channel is in an inactive state and ending the procedure if it is inactive;

If the overhead channel is not in a deactivated state, transmitting a deactivation request message (DeactReq) to a modem corresponding to the overhead channel;

Setting a state of the overhead channel to an inactivated state after transmitting the inactivation request message;

After setting a state of the overhead channel, transmitting an inactivity confirmation message (RemoveCfm) to the configuration management module; And

Determining whether the overhead channel is serviceable after transmitting the inactivity confirmation message; And

If the service of the overhead channel is not available, changing to an unserviceable state.

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention.

In the forward link of a wireless subscriber network, an overhead channel is a pilot channel for transmitting a unique signal of a base station according to its type, and a synchronous channel and call setup for synchronizing a terminal station with a base station. It is divided into a paging channel (Paging Channel) for.

There are several channels for each type of the overhead channel, and each type of these channels may provide a service in one or more channels activated. Therefore, an activated state that can provide a service is defined as an in-service state, while a state in which a service can not be provided is defined as an out-of-service state.

In this method, an activation confirmation message (ActCfm), a change request (ChangeReq) message, and a deactivation request (RemoveReq) message are respectively received in an out-of-service state and an activation confirmation message and a change request in an in-service state. When receiving the message and the deactivation request message, respectively, it consists of changing the channel status, changing the modem, and removing the channel.

In addition, a flag defining the state of each overhead channel exists as many as the total number of overhead channels, and each has one of values representing an active / deactivated / inchange state. .

The base station control module receives a change request message (ChangeReq) for moving a specific overhead channel to another modem and a remove request (RemoveReq) for deactivating the overhead channel from the configuration management module managing the overhead channel.

Also, in response, send a change confirmation message (ChangeCfm) and a deactivation confirmation message (RemoveCfm), and deactivate the activation request message (ActReq) to activate the modem corresponding to the specific overhead channel to the physical layer management module. Sends a deactivation request message (DeactReq). At this time, in response to the activation request message ActReq, an activation confirmation message ActCfm is received.

Initially, all the overhead channels of the base station are all in a deactivated state. In the initialization of the system, the base station control module sends an activation request message to the corresponding modem management module with reference to the shape information in order to activate the modem set to the overhead channel.

Then, in the unserviceable state, it waits for an activation confirmation message for each channel. Operation in the case of receiving each message in each state, its operation and effects will be described in detail with reference to FIGS. 1 to 6 as follows.

1 is a flowchart illustrating a case in which an activation confirmation (ActCfm) message is received in a non-service state according to the present invention, and its operation and effects will be described.

When receiving an activation confirmation message for a specific overhead channel in the unserviceable state (s1), the base station control module checks whether the corresponding overhead channel is activated. (S2) If the overhead channel is activated, the (s1). Return to).

If the overhead channel is not active, the base station control module checks whether the overhead channel is being changed. (S3) If not, the status of the channel is changed to "active" (s4) and all types are used. Verify that at least one of the overhead channels in the channel is active (s5). Perform the state change by this result (s6).

If the overhead channel is being changed, the state of the channel is changed to "active" (s7) and a change confirmation message is transmitted to the configuration management module. (S8) Then, the service availability is checked (s9), State transition is performed (s10).

2 is a flowchart illustrating a case where a change request message is received in a non-service state according to the present invention, and its operation and effects will be described.

If a change request message for a specific overhead channel is received in the non-service state (s11), the base station control module checks whether the corresponding overhead channel is active. (S12) If the corresponding overhead channel is not active, the ( Return to s11).

If the overhead channel is active, a deactivation request message (DeactReq) for deactivating a previously used modem is transmitted (s13). At this time, the state of the overhead channel is set to InChange (s14). In addition, an activation request message ActReq is transmitted to activate a new modem (s15).

3 is a flowchart illustrating a case where a deactivation request message is received in a non-service state according to the present invention, and its operation and effects will be described.

When the deactivation request message for a specific overhead channel is received in the deactivated state (s21), the base station control module checks whether the corresponding overhead channel is deactivated (s22). After changing the state of the overhead channel to inactive (s23), the deactivation request message is transmitted (s24), and the deactivation confirmation message is transmitted to the configuration management module (s25).

4 is a flowchart illustrating a case where an activation confirmation message is received in a serviceable state according to the present invention, and its operation and effects will be described.

If the activation confirmation message for a specific overhead channel is received in the serviceable state (s31), the base station control module checks whether the corresponding overhead channel is being changed (s32). (S33) A change confirmation message is transmitted to the configuration management module. (S34) If the corresponding overhead channel is being changed, the state of the corresponding channel is changed to active (s35).

FIG. 5 is a flowchart illustrating a case where a change request message is received in a serviceable state according to the present invention, and its operation and effects will be described.

In the serviceable state, when a change request message for a specific overhead channel is received (s41), the base station control module checks whether the corresponding overhead channel is active (s42). In order to deactivate the modem, a deactivation request (DeactReq) message is sent (s43), and the state of the overhead channel is changed to being changed (s44).

In order to activate the new modem, an Activation Request (ActReq) message is transmitted (s45), the service availability is determined (s46), and the state transition is performed (s47).

6 is a flowchart illustrating a case in which a deactivation request message is received in a serviceable state according to the present invention, and its operation and effects will be described.

When the deactivation request message for a specific overhead channel is received in the serviceable state (s51), the base station control module checks whether the corresponding overhead channel is inactive (s52). The request message is transmitted (s53), and the state of the overhead channel is changed to inactive (s54).

Then, the configuration management module transmits a deactivation confirmation message (s54), determines whether the service is available (s56), and performs a state transition.

The overall flow of the above operation is as follows.

As shown in FIG. 1, when receiving a response message ActCfm in response to a message to activate (s1), it is determined whether an activated state is active (s2). If the corresponding overhead channel is not activated, it is checked whether the state is being changed (s3). If the check result is not changing, the state of the corresponding channel is changed to the activated state (s4).

After the state change, the service availability is checked (s5). As a result, if the service is confirmed to be available, the service is provided to be provided (s6).

If the state is being changed in step (s3), the state is changed to the activated state (s7). Then, a change confirmation message for the message for deactivating the channel state is transmitted to the configuration management module (S8). Then, it checks whether the service is available (s9), if possible (s10), and if it is confirmed that it is impossible to perform again from the step (s1).

As shown in FIG. 2, the base station control module receives a change request message for transferring the corresponding overhead channel to another modem from the configuration management module (s11). Then, it is determined whether the activated state (s12). If it is activated by the determination, the deactivation request message for deactivating the previously used modem is transmitted (s13).

After changing the overhead channel state to the changing state (s14), an activation request message for activating a new modem is transmitted (s15). Then, the process is performed again from the step (s11). In addition, if it is in an inactive state at (s12), the process is performed again from the step (s11).

As shown in FIG. 3, the base station control module receives a deactivation request message for deactivating a corresponding overhead channel from the configuration management module (S21). In operation S22, it is determined whether the corresponding channel state is in an inactive state. As a result, if the active state, the state of the channel is changed to the inactive state (s23).

The deactivation request message for deactivation is transmitted to the base station control module (s24), and the deactivation confirmation message of the deactivation message is transmitted to the configuration management module (s25). Then, the process is performed again from the step (s21). In addition, if it is inactivated in (s22), the process is performed again from the step (s21).

As shown in FIG. 4, upon receiving an activation confirmation message for a message to activate (s31), it is checked whether the state of the overhead channel is being changed (s32). As a result, if a change is being made, the corresponding channel state being changed is changed to the activated state (s33), and the change confirmation message for the message to deactivate the channel state is transmitted to the configuration management module (s34).

Then, the process is performed again from the step (s31). In addition, if it is not in the state of being changed in s32, the channel state is changed to the activated state (s35), and the process is performed again from the step of s31.

As shown in FIG. 5, when the base station control module receives a change request message for transferring the corresponding overhead channel from the configuration management module to another modem (s41), it is checked whether the state of the corresponding overhead channel is activated. (s42).

If the check result is activated, the deactivation request message for deactivating the previously used modem is transmitted (s43). The channel state is changed to the changing state (s44). After the change, the activation request message for activating the silent modem is transmitted (s45).

Then, it checks whether or not the service is available (s46), if not possible, the service is not available, and if possible, the process starts from (s41). In addition, if the state is deactivated in (s42), the process is performed from (s41).

As shown in FIG. 6, the base station control module receives a deactivation request message for deactivating a corresponding overhead channel from the configuration management module (S51). Then, it is checked whether the corresponding channel state is in an inactive state (s52). If the check result is activated, the deactivation request message for deactivation is transmitted to the base station control module (s53), and the channel state is changed to inactive state (s54).

In addition, the configuration management module transmits a deactivation confirmation message of a message to be deactivated (s55), checks whether the service is possible, and if possible performs from the step (s51), if not possible, the service is not available (s56). . In addition, if it is in the deactivated state (s52), the process is performed again from the step (s51).

As described in detail above, the present invention sets up a flag indicating whether the overhead channel is activated and a serviceable and a non-serviceable state for each overhead channel, so that overhead channel management can be simply implemented using a minimum state to avoid complexity. There is an effect that can provide a more stable service.

Claims (6)

Activation confirmation of a specific overhead channel from a physical layer management module managing a modem corresponding to each overhead channel in an out-of-service state in which all overhead channels are not activated for each type among a plurality of overhead channels. Receiving a message ActCfm; Checking whether the overhead channel is activated and ending the procedure if the overhead channel is activated; If the overhead channel is not activated, checking whether the overhead channel is being changed; If the overhead channel is not changing, changing the state of the overhead channel to an activated state; After changing to the activated state, checking whether at least one overhead channel of all types is in an activated serviceable state; If the check result is a serviceable state, changing to a serviceable state; If the overhead channel is being changed, changing the state of the overhead channel to an activated state; After changing to the activated state, transmitting a change confirmation message (ChangeCfm) to the configuration management module managing each overhead channel; After transmitting the change acknowledgment message, checking whether at least one overhead channel of all types is in an activated serviceable state; And If it is determined that the service is in the serviceable state, changing to the serviceable state. In the out of service state in which all overhead channels are not activated for each type among a plurality of overhead channels, a change request message (ChangeReq) for a specific overhead channel is received from the configuration management module managing each overhead channel. Receiving; Checking whether the overhead channel is in an activated state and ending the procedure if it is in an activated state; If the overhead channel is not activated, transmitting a deactivation request message for deactivating a previous modem corresponding to the overhead channel; Setting the state of the overhead channel to being changed after transmitting the deactivation request message; And After setting the state of the overhead channel, transmitting an activation request message (ActReq) to a new modem to activate a new modem corresponding to the overhead channel. How to operate head channel. In the out-of-service state in which all overhead channels are not activated for each type among a plurality of overhead channels, a disable request message (RemoveReq) for a specific overhead channel is received from the configuration management module managing each overhead channel. Receiving; Checking whether the overhead channel is in an inactive state and ending the procedure if it is inactive; Changing the state of the overhead channel to an inactive state if the overhead channel is not inactive; Transmitting a deactivation request message (DeactReq) to a modem corresponding to the overhead channel after changing to the deactivation state; And And transmitting a deactivation confirmation message (RemoveCfm) to the configuration management module after transmitting the deactivation request message. In a service state in which at least one overhead channel is activated for each type among a plurality of overhead channels, a physical layer management module for managing a modem corresponding to each overhead channel is used for a specific overhead channel. Receiving an activation request message (ActCfm); Checking whether the overhead channel is changing; Changing the state of the overhead channel to an active state if it is not changing; And Changing the status of the overhead channel to an active state and transmitting a change confirmation message (ChangeCfm) to the configuration management module managing each of the overhead channels if the confirmation result is being changed. Overhead channel operation method of base station control module. A change request message for a specific overhead channel from a configuration management module managing each overhead channel in a service state in which at least one overhead channel is activated for each type among a plurality of overhead channels. Receiving; Checking whether the overhead channel is in an activated state and ending the procedure if it is not in an activated state; If the overhead channel is activated, transmitting a deactivation request message (DeactReq) to a previous modem corresponding to the overhead channel; Setting the state of the overhead channel to being changed after transmitting the deactivation request message; After changing the state of the overhead channel, transmitting an activation request message (ActReq) to a new modem corresponding to the overhead channel; And Determining whether the overhead channel is available for service after transmitting the activation request message; And If the service of the overhead channel is unavailable, changing the service to an unserviceable state. Deactivation request message (RemoveReq) for a specific overhead channel from the configuration management module managing each overhead channel in an InService state in which at least one overhead channel is activated for each type among a plurality of overhead channels. Receiving; Checking whether the overhead channel is in an inactive state and ending the procedure if it is inactive; If the overhead channel is not in a deactivated state, transmitting a deactivation request message (DeactReq) to a modem corresponding to the overhead channel; Setting a state of the overhead channel to an inactivated state after transmitting the inactivation request message; After setting a state of the overhead channel, transmitting an inactivity confirmation message (RemoveCfm) to the configuration management module; Determining whether the overhead channel is serviceable after transmitting the inactivity confirmation message; And If the service of the overhead channel is not available, including changing to a non-service state.