WO2009124430A1

WO2009124430A1 - Method of paging matching responding and mobile station applying it

Info

Publication number: WO2009124430A1
Application number: PCT/CN2008/002138
Authority: WO
Inventors: 李森; 李晨熙; 凌勇
Original assignee: 中兴通讯股份有限公司
Priority date: 2008-04-09
Filing date: 2008-12-30
Publication date: 2009-10-15
Also published as: CN101557642B; CN101557642A

Abstract

A method of paging matching responding is disclosed. It includes: the system side sending broadcast paging and channel allocation message to all of the mobile stations through broadcast channel (S10); the mobile stations parsing the broadcast paging and channel allocation message, and matching the information derived from parsing with the information stored in itself (S20), if the matching being not successful, then discarding the broadcast paging and channel allocation message (S22); if the matching being successful, then the mobile station detecting whether this calling is the calling the mobile station having exited actively, if this calling being not the calling the mobile station having exited actively, then joining the calling; otherwise discarding the broadcast paging and channel allocation message. A mobile station applying the method is also disclosed.

Description

Method for paging matching response and mobile station applying the same

Technical field

The present invention relates to the field of digital trunking communication systems, and more particularly to a method for performing a paging matching response in a call of a digital trunking communication system and a mobile station applying the same.

Background technique

The digital trunking communication system is an important branch of the mobile communication system, and is a mobile communication system applied to the group dispatching command communication. Mainly used in professional mobile communications, such as government departments, military, police, railway, water conservancy, civil aviation and steel logistics.

The network structure of the digital trunking communication system (Fig. 1) mainly includes a cluster mobile station, a base station subsystem, and a scheduling subsystem, where:

A cluster mobile station (referred to as a mobile station), a mobile station device with a cluster service function, is the main device for the cluster network to interact with the user.

The base station subsystem, the base station system with the cluster service function, completes the access function of the cluster mobile station, and is the main device connecting the cluster mobile station and the scheduling subsystem.

The scheduling subsystem completes the control and management functions of the mobile station cluster service in the service area, and is the control center of the cluster service.

The base station subsystem and the scheduling subsystem may be collectively referred to as a system side.

At present, the trunk mobile station call access includes three processes of calling, paging, and paging matching responses. At the time of the call, a member initiates a call to all members of the group. At this time, the group member initiates the call signaling, and the system side is notified that the mobile station needs to make a group call. Then, the system side performs paging on the mobile station in the group on the dedicated paging channel, that is, after receiving the originating call signaling of the mobile station, the system side separately sends a broadcast paging and channel to each mobile station in the 3⁄4⁄4 call group. A message is assigned to notify all mobile stations in the group to enter the group call. Then, the paging matching response process is performed, that is, after receiving the system broadcast paging and channel assignment message, the other mobile stations in the group perform broadcast paging and channel assignment message decoding, and according to the information of the broadcast paging and channel assignment message. And performing related processing, and after confirming that it is its own paging message, replying to the paging response signaling. The current paging and paging matching response method is that the system side separately sends a broadcast paging and channel assignment message to each called mobile station, and the signaling carries the IMSI of the called mobile station (International Mobile Subscriber Identity, International The serial number), after the mobile station receives the #IMSI match, after the match is successful, the page response is replied. Since each mobile station is separately accessed, when the number of mobile stations in the group is large, some mobile station access waiting time is too long, which is not conducive to the use of the digital trunk mobile station.

Chinese Patent No. 200710198491.5 proposes a method to solve the above problem. The basic idea of the method is as shown in FIG. 2, that is, after the calling mobile station completes the calling, the system side executes S10, and sends a broadcast paging to all the cluster mobile stations in the network on the broadcast channel. And a channel assignment message, the message carries a group GID (Group ID, a group identifier, which is a unique identifier of the group), and informs all cluster mobile stations that a certain cluster mobile station starts a call, requesting movement within the group The station joined the call.

After receiving the broadcast paging and channel assignment message sent by the system side, the trunked mobile station performs the following operations:

S20: Decode the broadcast paging and channel assignment message, and match the parsed information with the information stored by the mobile station itself. A preferred embodiment is to resolve the GID in it.

The broadcast paging and channel assignment message may include the following:

LAC (Location Area Code) layer (this layer is called "layer 2" in CDMA2000 Air Interface Technical Specification issued by Qualcomm;): includes utility (UTILITY) sublayer and address (ADDRESS) Floor.

The utility sublayer uses the MESSAGE_ID flag to indicate the message type. In the present invention, the value is 0x36.

The ADDRESS sublayer includes three parts: NUM GIDS, GID-ADDR-LENGTH, and GID ADDR LIST.

NUM—GIDS flag: Indicates the number of groups included in the message. This flag is 4 bits long.

GID — ADDR — LENGTH flag: Indicates the encoding mode of each group GID, which is 1 bit in length. When it takes a value of 0, it indicates that a GID of 28-bit encoding is used; when it takes a value of 1, it indicates that a GID of 52-bit encoding is used. GID—ADDR— LIST Data Structure: Indicates the group GID 歹>J table. When GID—ADDR—LENGTH is 0, the field length of the data structure is equal to the product of NUM—GIDS and 28 (in bits), when GID— When ADDR_LENGTH is 1, the field length of this flag is equal to the product of NUM_GIDS and 52 (in bits). GID—ADDR—The GID data in the LIST is arranged as shown in the following table:

GID ADDR 1

GID ADDR 2

GID ADDR 3

Each of the above rows of data represents a GID, and a broadcast paging and channel assignment message may have multiple GIDs, and the mobile station parses all GIDs and then matches them with their own stored GIDs.

In an embodiment in which matching is performed by using GID, the cluster mobile station that receives the broadcast paging and channel assignment message compares the parsed GID with the GID stored by the mobile station itself, and detects whether the group to which the mobile station belongs is currently making a call. . If there is no match, the broadcast paging and channel assignment message is discarded. If the matching is successful, step S60 is performed to perform subsequent operations of the call, and the mobile station accesses the call.

In the trunking communication technology, the mobile station can actively quit a certain call of a certain group. According to the requirements of the cluster communication, once the mobile station exits a certain call of a certain group, the mobile station before the end of the call It is not possible to passively force the call again.

The technical solution of the patent of 200710198491.5 has the following drawbacks: The mobile station actively withdraws from a certain call of a certain group, and when it receives the broadcast paging and channel assignment of the call again and performs GID matching, after the matching is successful, the mobile station is connected again. Into the call. This does not meet the requirements of cluster communication.

Summary of the invention

The technical problem to be solved by the present invention is that during the process of the trunk call, the system side sends a broadcast paging and channel assignment message to the mobile station through the broadcast channel, and the cluster mobile station may access a call that has voluntarily quit after the matching is successful. Technical flaws.

In order to solve the above problem, the present invention provides a method for paging matching response, including: the system side sends a broadcast paging and channel assignment message to all mobile stations through a broadcast channel; The mobile station parses the broadcast paging and channel assignment message and matches the parsed information with the information stored by itself. If the matching is unsuccessful, the broadcast paging and channel assignment message is discarded; if the matching is successful, the next step is performed. ;

The mobile station detects whether the call is a call that the mobile station has voluntarily quit. If the call is not a call that the mobile station has voluntarily quit, the call is accessed; otherwise, the broadcast paging and channel assignment message is discarded.

Further, the above method may also have the following features:

The step of the mobile station detecting whether the call is a call that the mobile station has voluntarily quit includes:

The mobile station detects the type of the exit character of the group in which the call is stored. If the exit character is a passive access type, the call is not the call that the mobile station has voluntarily quit; if the exit character is a non-passive access type And further determining whether the call sequence number in the broadcast paging and channel assignment message is the same as the call sequence number of the last group call reserved by the mobile station, and if the same, the call is a call that the mobile station has actively logged out; Conversely, it is not the call that the mobile station has voluntarily quit.

Further, the above method may also have the following features:

Before the step of accessing the call is performed, the method further includes:

Detecting whether the mobile station is waiting for a particular call, and if not, performing the next step; otherwise, detecting whether the wait has timed out, and if so, performing the next step;

Set the call to a specific call that the mobile station is waiting for and start timing.

Further, the above method may also have the following features:

In the step of detecting whether the waiting has timed out, if waiting for a call that has not timed out and waiting for access to the mobile station, the broadcast paging and channel assignment message is discarded.

Further, the above method may also have the following features:

The mobile station detects whether the mobile station is waiting for a particular call by detecting whether its current call access preemption flag is set.

Further, the above method may also have the following features: Setting the call as a specific call waiting for the mobile station to start timing means: setting the call access preemption flag, and the timer starts counting.

Further, the above method may also have the following features:

The setting the call to a specific call that the mobile station is waiting for further includes: setting a call access type according to the call and a group ID for performing the specific call.

Further, the above method may also have the following features:

If the detection wait has timed out, the setting of the call access preemption flag is canceled.

In order to solve the above problem, the present invention further provides a mobile station, including a storage module, configured to store a GID required for a paging matching response, and a broadcast receiving module, configured to receive a broadcast paging and channel assignment message from a broadcast channel; And the matching module is configured to match the GID parsed by the parsing module with the GID stored in the storage module, and notify the processing if the matching is unsuccessful The module discards the broadcast paging and channel assignment message,

The storage module is further configured to store a call sequence number of the last call and an exit character of the group; the information parsed by the parsing module includes a call sequence number of the call; and the matching module is further configured to use the parsed GID and the stored After the GID is successfully matched, the status of the exit character of the group is detected, and when the exit character is the non-passive access type, the call sequence number of the last call stored by the storage module and the call of the call parsed by the parsing module are called. The sequence number is matched, and the notification processing module discards the broadcast page and channel assignment message if the match is successful, and in other cases, notifies the processing module to access the call.

Further, the mobile station may further have the following features: further including a timer, where the storage module is further configured to store a call access preemption flag, a call access type of a specific call currently waiting, and a group that performs the specific call. a group ID, the parsing module is further configured to parse the call type information in the broadcast paging and channel assignment message, where the matching module is further configured to detect whether the call access preemption flag is set, if not set, Setting the flag, notifying the timer to start timing, and storing the type and group ID of the call in the call access type of the specific call currently waiting, and the group ID of the specific call, and notifying the processing module to perform the connection. If the call is set, the detection timer expires. If the timer expires, the call access preemption flag is canceled. The call type information and the group GID parsed by the parsing module set the call access type of the specific call currently waiting, and the group ID of the specific call, reset the call access preemption flag, and notify the timer to restart timing and notification. The processing module accesses the call.

The present invention enables the mobile station to detect whether it is necessary to access a certain call according to its current state after receiving the paging message and matching successfully, thereby avoiding the situation that the mobile station re-passively joins the call that it has actively quit, and the present invention The mobile station has a short waiting time for access to the digital trunking mobile station. BRIEF abstract

1 is a structural diagram of an existing digital trunking communication system;

2 is a flow chart of a method for transmitting a broadcast paging and channel assignment message through a broadcast channel and a paging matching response of the mobile station by the existing system side;

3 is a flow chart of a method according to a first embodiment of the present invention;

4 is a flow chart of a method according to a second embodiment of the present invention;

Figure 5 is a block diagram of a mobile station of the present invention;

Figure 6 is a block diagram of an embodiment of a mobile station of the present invention.

Preferred embodiment of the invention

The technical solution of the present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

The system side of the invention uses the broadcast channel to initiate a broadcast paging and channel assignment message to the mobile station, and the mobile station receives the broadcast paging and channel assignment message and then matches the data (generally GID) stored by itself to complete the method. Group call for a digital trunk. As shown in FIG. 3, after the GID is successfully matched, it may be detected whether the call is a call that the mobile station has voluntarily quit, and if so, the broadcast paging and channel assignment message is discarded; if not, step S60 is performed.

In the present invention, in addition to parsing the GID, step S10 also parses out the current call sequence number. The call sequence number is obtained by parsing layer 3 in the broadcast paging and channel assignment message (the CDMA2000 Air Interface Technical Specification published by Qualcomm has a detailed definition of the layer). In Layer 3, the RECORD flag is included, and the information contained in this flag is shown in the following table:

When Record_TYPE is 7E, Layer 3 contains the following information:

Where CALL— SEQ—NUM is the call sequence number for this call.

S30 ~ S40 detects whether the call of the group has been actively logged out. Can be achieved by the following operations:

S30: Detect the exit character of the group on the cluster mobile station, and the purpose is to detect whether the mobile station has actively quit a certain call of the group. The group exit character can be set to 1 to indicate that the mobile station has actively quit a certain call of the group, and the group exit character is a non-passive access type; if the group exit character is 0, it indicates that the mobile station has not A call that has voluntarily quit the group, the group exit character is a passive access type. For example, if the exit character of this group is detected as 0, the operation of S60 is performed, otherwise, S40 is performed.

S40: Compare the group call sequence number in the broadcast paging and channel assignment message sent by the system side with the sequence number of the last group call reserved by the mobile station, and check whether the current call is the last exit call. If the current call sequence number is the same as the stored call sequence number, it means that the call is the last call that was quit. The call that has been logged out does not end, and the broadcast page and channel assignment message are directly discarded. The difference is a new one. Call, perform S60, access the call. In another preferred embodiment (Fig. 4), in order to deal with the following situation, a step of detecting whether the called mobile station is in another group call or call waiting process is added: The mobile station can only process a certain one at this time. Specific call. In this embodiment, if the group exit character is 0 in step S30, the operation of S50 is performed, otherwise, S40 is performed; in step S40, if the call sequence number does not match, it indicates that the call is a new call. Execute S50.

S50: Detect whether the called mobile station is waiting for a specific call. The specific operation of this step is as follows: After the called mobile station receives the above paging and matches successfully, the cluster mobile station will detect whether the current call access preemption flag ( PTT_ACCESS_PREEMPT_FLAG ) is set (if 1 , it means to be set, move The station is waiting for a particular call. If it is 0, it means it is not set, and the mobile station does not wait for a specific call).

When the value is 1, the call access type (PTT ACCESS PREEMPT TYPE ) of the specific call currently waiting for the cluster mobile station is detected (the type may not be detected) and the group ID of the specific call is made ( PTT — ACCESS — PREEMPT — GID), and detecting the timer of the call access preemption, when the cluster mobile station's current call access preemption timer (T_PTT_ACCESS_PREEMPT) times out (the timer starts timing when the call access preemption flag is set to 1), Set PTT—ACCESS— PREEMPT—FLAG is 0, indicating that the mobile station is no longer waiting for the specific call. If the timeout has not expired and the particular call is connected to the mobile station, the broadcast page and channel assignment message for the call is discarded. The types of current call access preemption of the trunking mobile station include: Originating IMSI, Originating GID, Private Demolition, Enhanced Group Demolition, Traditional Group Demolition, BCAM (Broadcast Signal Assignment Message), IMSI The page has been matched.

When the value is 0, PTT_ACCESS_ PREEMPT_TYPE and PTT_ACCESS_ PREEMPT_GID are set according to the call, and PTT_ACCESS_ PREEMPT_FLAG is set to 1, and the timer starts counting. Then, the process proceeds to step S60.

S60, the mobile station paging matching work is completed, and subsequent operations are performed. Such as sending a page response message or an access group call.

The present invention also provides a mobile station that performs a paging match response. As shown in FIG. 5, in the first embodiment of the mobile station of the present invention, a storage module is configured to store a GID required for a paging matching response, and a broadcast receiving module is configured to receive a broadcast paging and channel assignment message from a broadcast channel. ; parsing module, The GID is used to parse out the GID in the broadcast paging and channel assignment message; the matching module is configured to match the GID parsed by the parsing module with the GID stored in the storage module, and if the matching is unsuccessful, notify the processing module to discard The broadcast paging and channel assignment message, the storage module further stores the call sequence number of the last call and the exit character of the group, and the information parsed by the parsing module includes the call sequence number of the call, and the matching module is further used to After the parsed GID is successfully matched with the stored GID, the status of the exit character of the group is detected. If the exit character is a non-passive access type, the call sequence number of the last call stored by the storage module and the call parsed by the parsing module are used. The call sequence number is matched. If the match is successful, the notification processing module discards the broadcast page and channel assignment message; in other cases, the notification processing module accesses the call.

FIG. 6 shows a second embodiment of the mobile station of the present invention. The mobile station of this embodiment further has a timer, and the storage module can also store a call access preemption flag (PTT_ACCESS_ PREEMPT-FLAG), current The call access type flag (PTT_ACCESS_ PREEMPT_TYPE) of the specific call waiting, the group ID (PTT_ACCESS_ PREEMPT_GID) for performing the specific call, this embodiment is basically the same as the first embodiment, different The point is that, in this embodiment, before the matching module notifies the processing module to perform an access call, it also needs to detect PTT-ACCESS- PREEMPT_TYPE and PTT-ACCESS- PREEMPT-GID, and detect whether PTT-ACCESS- PREEMPT-FLAG is set. (If it is 1, it means it is set). If PTT_ACCESS_ PREEMPT-FLAG is set, the matching module detects whether the timer expires. If it times out, set PTT_ACCESS_ PREEMPT_FLAG to 0, indicating that the mobile station is no longer waiting. This particular call. If the timeout has not expired and the particular call is connected to the mobile station, the notification processing module discards the broadcast page and channel assignment message for the call. The types of current call access preemption of the trunking mobile station include: Originating IMSI, Originating GID, Private Demolition, Enhanced Group Demolition, Traditional Group Demolition, BCAM Received, and IMSI Paging are matched. If PTT_ACCESS_ PREEMPT_FLAG is 0, then PTT_ACCESS_ PREEMPT_TYPE and PTT_ACCESS_ PREEMPT_GID are set according to the call, PTT_ACCESS_ PREEMPT_FLAG is set to 1, and the timer is notified to start timing. .

While the invention has been described in connection with the specific embodiments, the modifications and the modifications Such repair Variations and modifications are considered to be within the scope of the invention and the scope of the appended claims.

Industrial applicability

The invention provides a method for paging matching response and a mobile station applying the method. After receiving a paging message and successfully matching, the mobile station detects whether it needs to access a certain call according to its current state, and avoids the mobile station re-repairing. Passively join a call that has been actively quit. At the same time, the mobile station has a short waiting time for access, which is convenient for the use of the digital trunking mobile station.

Claims

Claim

A method for paging matching response, comprising the following steps,

The system side sends a broadcast paging and channel assignment message to all mobile stations through a broadcast channel; the mobile station parses the broadcast paging and channel assignment message and matches the parsed information with information stored by itself, if the matching is unsuccessful, the lost Discarding the broadcast paging and channel assignment message; if the matching is successful, performing the next step;

2. The method according to claim 1, wherein the step of detecting, by the mobile station, whether the call is a call that the mobile station has actively logged out comprises:

The method according to claim 1 or 2, further comprising: before the step of accessing the call, further comprising:

The method according to claim 3, wherein in the step of detecting whether the waiting has timed out, if waiting for a call that does not time out and waiting for access to the mobile station, discarding the broadcast paging and channel assignment Message.

5. The method of claim 3, wherein the mobile station detects whether the mobile station is waiting for a particular call by detecting whether its current call access preemption flag is set.

6. The method according to claim 5, wherein setting the call to a specific call that the mobile station is waiting to start timing means: setting a call access preemption flag, and the timer starts timing.

7. The method according to claim 6, wherein the setting the call to a specific call that the mobile station is waiting for further comprises: setting a call access type according to the call and a group performing the specific call Group ID.

8. The method according to claim 5, wherein if the detection wait has timed out, the setting of the call access preemption flag is cancelled.

9. A mobile station applying the method of claim 1, comprising a storage module for storing a GID required for a paging matching response; a broadcast receiving module for receiving a broadcast paging and channel assignment message from a broadcast channel; And the matching module is configured to match the GID parsed by the parsing module with the GID stored in the storage module, and notify the processing if the matching is unsuccessful The module discards the broadcast paging and channel assignment message, characterized in that

The mobile station according to claim 9, further comprising a timer, wherein the storage module is further configured to store a call access preemption flag, a call access type of a specific call currently waiting, and perform the The group ID of the specific call, the parsing module is further configured to parse the call type information in the broadcast paging and channel assignment message, and the matching module is further configured to detect whether the call access preemption flag is set, if not When set, the flag is set, the timer is notified to start timing, and the type and group ID of the call are respectively stored in the call access type of the specific call currently waiting, and the group ID of the specific call, and the notification is given. The processing module performs an access call; if it is set, the detection timer expires. If the timer expires, the setting of the call access preemption flag is canceled. Setting the call access type of the specific call currently waiting and the group ID of the specific call according to the call type information and the group GID parsed by the parsing module, resetting the call access preemption flag, and notifying the timer to restart timing and The notification processing module accesses the call.