CN1183700A - Control method in channel associated signalling wireless cut-in communication - Google Patents

Abstract

The present invention provides a control method in channel-associated signaling wireless access communication, which uses the air control signaling between the base station (BS) and the wireless user terminal (MS) to set and change the relevant parameters of the wireless user terminal, thereby Realize the control of the wireless user terminal. For example, by setting or changing the identity code, group code, channel number, and channel frequency in the electronically erasable memory of the wireless user terminal, it is possible to freely and conveniently implement code modification, dynamic grouping, addition and/or modification of the wireless user terminal Channels increase the flexibility and maintainability of the system.

Description

A control method in channel-associated signaling wireless access communication

The present invention relates to a wireless access communication method, in particular to a control method in channel-associated signaling wireless access communication.

The wireless access communication system is composed of a base station controller, a base station, a splitter/combiner, and a wireless user terminal (which can be a mobile phone, a vehicle-mounted station, a fixed station, etc., also referred to as a wireless user or a wireless terminal in the present invention), through A communication system in which base stations and wireless user terminals transmit information such as signaling and data to each other in the air, thereby transmitting telegrams, telephones, faxes, images, data, radio and television programs, and other services. Generally, there are multiple transmission channels between the base station and the wireless users. The channel-associated signaling wireless access communication system refers to a signaling system in which the signaling information of each call is transmitted on the same channel as the voice information. The existing channel-associated signaling system generally can only provide the function of call establishment and release, mainly including: ① monitoring function, used to detect and reflect the status of the telecommunication network and users; ② selection function, to complete the routing according to the called user address information Selection function; ③Running function, including detection and transmission of telecommunications network congestion information, transmission of exchange or circuit unavailable information, transmission of billing information, etc. In order to achieve the above functions, the existing road-associated wireless access system adopts analog or digital-analog hybrid air control signaling, and completes wireless user communication through signal signaling such as call request, answer response, off-hook, on-hook, and channel clearing. Request a call from the channel controller, the wireless user is called by the channel controller and the whole process of connecting, talking and disconnecting.

In the applicant's previous patent application titled "Program-controlled exchange-based cellular trunking communication method and system" (application number 95116742.1), a method for channel-associated signaling wireless access communication is disclosed. Using this method, wireless users can be grouped, and the users in the group can make group calls, group calls, simplex calls, emergency calls, and the like. This communication method and system has the following deficiencies: 1. The grouping is static and fixed, and once the grouping is set, it cannot or is difficult to regroup. It is difficult to adapt to the needs of users for dynamic temporary grouping or regrouping. ②The identity code of the wireless user is fixed and cannot be changed arbitrarily. Once the user's account is stolen, etc., it is difficult to protect the user by changing the identity code, and the user's safety cannot be guaranteed. ③ The channel information of each wireless user, such as the number of channels and the frequency range of each channel, is fixed. When a wireless user is using it, it scans these channels cyclically every time, looking for an idle channel to send signaling and receive signaling. Signaling of the wireless terminal. Even if the number of channels is increased due to the increase of user capacity, the original wireless users will not automatically scan the newly added channels, so the sharing of the newly added channel resources cannot be realized; when one or several channels are interfered or caused by other reasons When unusable, it cannot be automatically repaired.

In short, due to the lack of flexible and effective control of wireless users in the existing road-associated wireless access communication system, operations such as dynamic grouping, changing identity codes, adding and/or modifying channels, etc. are not possible, which limits the scope of use of wireless users .

Therefore, the object of the present invention is to solve the above-mentioned defects and deficiencies in the prior art, and provide a control method in channel-associated signaling wireless access communication, which can control wireless user terminals through air control signaling , automatically set and change the relevant parameters of the wireless user terminal, so as to realize the flexible control of the wireless user. Specifically, the object of the present invention is to provide a control method in channel-associated signaling wireless access communication, which automatically sets and changes the identity code, group number or channel of the wireless user terminal through air control signaling Number, channel frequency and other information, so as to realize the functions of recoding, grouping and capacity expansion of wireless user terminals.

The capacity expansion mentioned in the present invention not only includes adding new channels, but also includes modifying original channels.

The dynamic grouping mentioned in the present invention not only includes editing new groups, but also includes deleting original groups.

For this reason, a kind of control method in the channel-associated signaling wireless access communication that provides according to the above-mentioned purpose of the present invention, comprises setting up identity code, block code for each wireless user terminal, in the electrical erasable memory of wireless user terminal (It can be EEPROM, power-on protection RAM, FLASH MEMORY, etc.) to set up addresses for storing identity codes, group codes, channel numbers, and channel frequencies, and store user identity codes, group numbers, and channel numbers of each work area in the system , channel frequency and other information are stored in the corresponding addresses in the electrically erasable memory. The feature of the present invention is: using the air control signaling between the base station and the wireless user terminal to control the terminal, the control method includes the following steps:

1. The wireless user terminal performs cyclic scanning on all channels in the current working area. The cyclic scanning methods can be: timed interrupt cyclic scanning, interrupt cyclic scanning, main program cyclic scanning, etc. When there is exactly one signaling on a certain channel, then accept the signaling;

2. Extract the signaling type code contained in the signaling, and judge the type of the signaling according to the signaling type code;

3. According to the type judged in step 2, set and change the relevant parameters of the wireless terminal.

According to the type judged in step 2, the operation of setting and changing the relevant parameters of the wireless terminal described in step 3 can be respectively:

When it is determined to change the identity code signaling, perform the operation of changing the identity code, and change the identity code of the wireless user;

When it is determined that it is a dynamic marshalling signaling, perform marshalling operations and automatically marshal;

When it is determined that it is a dynamic group deletion signaling, a group deletion operation is performed to delete the specified group;

When it is determined that it is an expansion signaling, a capacity expansion operation is performed, and corresponding channels are automatically added and/or modified.

The capacity expansion signaling includes two types of channel locking signaling and capacity expansion broadcast signaling.

As can be seen from the above overview, the method of the present invention changes the user's identity code through air control signaling, which can prevent the number from being stolen, thereby ensuring the safety of the user; through the control operation of dynamic grouping, users in the system can be freely combined into groups, such as , you can create a new group, delete an existing group, increase or decrease members in the group, or recombine several existing groups to form a new group, or merge and separate existing groups. A member can At the same time, it is programmed into different groups, which improves the flexibility of grouping and meets the needs of users who may regroup or temporarily group during use; through the control operation of automatic expansion, it is very convenient to add channels to the system and let the existing There are wireless users to share the newly increased channel resources, thus adapting to the needs of channel expansion of the system; the channel can also be repaired and modified very conveniently, which has greater maintainability.

Taking a system in which the applicant implements the method of the present invention as an example, the purpose, features and effects of the present invention will be further described in conjunction with the accompanying drawings.

In the attached picture:

Fig. 1 is a composition block diagram of a system implementing the control method in the channel-associated signaling wireless access communication of the present invention;

Fig. 2 is the processing flow diagram that the wireless user terminal executes changing identity code signaling (CHG);

Fig. 3 is the signaling format diagram of changing identity code signaling (CHG) described in Fig. 2;

Fig. 4 is the processing flowchart when the wireless user terminal executes grouping signaling (REO) in dynamic grouping;

Fig. 5 is a signaling format diagram of grouping signaling (REO) described in Fig. 4;

Fig. 6 is the processing flowchart when the wireless user terminal executes group deletion signaling (DEO) in dynamic grouping;

Fig. 7 is a signaling format diagram of group deletion signaling (DEO) described in Fig. 6;

Fig. 8 is a processing flowchart when the wireless user terminal executes capacity expansion signaling;

Figure 9a is a format diagram of the channel locking signaling (LOCK) in the automatic expansion method shown in Figure 8;

Figure 9b is a format diagram of the expansion broadcast signaling (BCST) in the automatic expansion method shown in Figure 8;

FIG. 9c is a format diagram of subsequent data frames of the expansion signaling in the automatic capacity expansion method shown in FIG. 8 .

In the drawings, the same reference numerals represent the same components, and the ends with the same symbols represent the same end or are connected together.

In the system for implementing the method of the present invention shown in FIG. 1 , a switch 101 is connected to a base station controller 102 to control a base station 103 . The base station 103 and the wireless user terminal 107 transmit signals to each other through air control signaling. The wireless user terminal 107 is shown including a microprocessor and electrically erasable memory coupled to the microprocessor. The signal in the system of the present invention adopts an all-digital frame structure, the air control signaling between the base station 103 and the wireless terminal 107 is modulated by MSK, and the transmission rate is 1200bps or 2400bps. When the wireless user 107 is in the usual waiting state, it automatically scans all installed channels in the current work area cyclically to detect whether there is a signal. If not, continue to scan, otherwise stay on this channel for processing. The detection method is to stay on the channel for two frames. If the synchronization code Sync is received within this time, the signal is received. If the signal is sent to the wireless terminal, the signal is processed. Otherwise, the next channel is scanned.

After receiving the signal, the wireless user terminal first extracts the first Q of the signal content. If Q is 1, it means that the frame is a signaling frame, and if Q is 0, it means that it is a data frame. If it is judged that the frame signal is a signaling frame, then extract the system code SysID and the identity code Ident or the old identity code Oident contained therein, compare with the system code of the system where the wireless terminal is located and the identity code of the wireless terminal, if the same , indicating that it is sent to the wireless terminal, stop scanning and process the signaling.

After receiving the signaling frame, the wireless user extracts the signaling type code TYPE in the signaling frame and performs identification. Different TYPE values represent different types of signaling, and corresponding operations are performed on different types of signaling.

As shown in FIG. 3 , in addition to the signaling identification code Q, verification code P, and signaling type code TYPE, the change identity code signaling also includes the system code SysID, the old identity code Oident, and the new identity code Nident. The operation steps of changing the identity code shown in Figure 2 are as follows:

- In step 201, the wireless user terminal scans cyclically, polls each channel in the current work area, and detects whether there is a signaling sent to the wireless terminal, if not, then continue to scan the next channel; if there is signaling, then perform the steps 202;

- In step 202, extract the signaling type code in the signaling, judge whether the signaling is CHG signaling, if it is CHG, execute step 204;

- In step 204, extract the old identity code Oident contained in the signaling, compare it with the identity code of the wireless terminal, if they are the same, then perform step 206; otherwise, return to 201, and continue to scan the next channel;

-Execute step 206 to extract the new identity code contained in the signaling;

-Find the address where the identity code is stored in the EEP memory, execute step 208, erase the old identity code in the address, and write the new identity code.

As shown in Fig. 4 and Fig. 5, in addition to signaling identification code Q, verification code P and signaling type code TYPE, grouping signaling also includes system code SysID, identity code Ident and group number Grpno. The dynamic grouping operation includes the following steps:

- In step 401, the wireless user terminal scans cyclically, polls each channel in the current work area, and detects whether there is a signaling sent to the wireless terminal, if not, then continue to scan the next channel; if there is signaling, then perform the steps 402;

- In step 402, extract the signaling type code in the signaling, judge whether the signaling is grouping signaling REO, if it is REO, then execute step 404;

- In step 404, extract the identity code Ident contained in the signaling, compare it with the identity code of the wireless terminal, if it is the same, then execute step 406; otherwise, return to step 401, exit this step operation, and continue to scan the next step channel;

- Extract the packet number contained in the signaling;

—Find the address where the group number is stored, and write the extracted group number.

As shown in Figure 6 and Figure 7, the signaling format in the delete group signaling is the same as the format of the group signaling shown in Figure 4, but the group number Grpno in Figure 6 represents the original group number to be deleted; steps 601 to 606 The same as or corresponding to steps 401-406, in step 607, find the address storing the group number Grpno in the electronic erasable memory of the wireless terminal, and then execute 608 to delete the group number.

As shown in Figures 9a, 9b, and 9c, in the channel locking signaling, in addition to the signaling flag code Q, check code P and signaling type code TYPE, it also includes the expansion content code MARK to distinguish the expansion of different content . For each different expansion, a different MARK value is assigned. The channel locking signaling also includes the channel number CH-NUM to indicate the number of channels expanded this time. In the expansion broadcast signaling BCST, it also includes the expansion sequence number CHSER, which is used to indicate the sequence of the BCST signaling in the group when multiple channels are expanded and a group of BCST signaling is sent; it also includes the working area number Zone, when When the system has multiple workspaces, Zone is used to indicate which workspace is to be expanded. In the data frame signal, in addition to indicating that it is the identification code Q (when it is 0) and the check code P of the data frame, it also includes the channel number C-num designated for the channel, and the receiving frequency Rx-Freq and Transmit frequency Tx-Freq.

When the system needs to expand the capacity of a certain work area, the base station controller controls the base station and sends corresponding air control signaling to the wireless user terminal: firstly send out the channel locking signaling LOCK, and then send out a set of expansion broadcast signaling BCST and subsequent data frame. To expand several channels, several BCST signalings are sent. Each BCST signaling and its subsequent frame of data correspond to the addition and/or modification of a channel. The sequence number CHSER in the BCST signaling indicates that the signaling is in The order in this set of signaling.

Step 801 shown in FIG. 8 is the same as step 201 in FIG. 2 . Step 802 extracts the signaling type code in the signaling, judges whether the signaling is LOCK signaling, and if so, performs the following steps.

When the wireless user terminal receives the channel locking signaling LOCK, it performs the following steps:

- In step 803, determine whether the wireless terminal has correctly completed the expansion, if it is determined that the expansion has been completed correctly, then do not perform this operation, return to step 801, and continue to scan the next channel; otherwise, perform step 804, stop scanning , stay on the current channel;

- In step 805, the timer is cleared and a certain waiting time T is set;

- Within the timing range T, the wireless terminal stays on the channel to receive the expanded broadcast signaling BCST and its subsequent data frames. Every time a capacity expansion broadcast signaling is received, execute 808, that is, extract its serial number CHSER, and judge whether it is correct. If it is not correct, then stop receiving, return to step 801, and continue to scan the next channel;

- After receiving all expansion broadcast signaling and subsequent frames thereof, for each BCST signaling and subsequent data frames thereof, extract the channel number, receiving frequency and transmitting frequency contained in the data frame, and convert the received The frequency and the transmission frequency are written into the storage area of the corresponding channel in the electrically erasable memory of the wireless user terminal;

-Execute 811, the wireless user terminal reloads the channel parameters, and the capacity expansion is completed.

In step 803, extract the expansion content code MARK in the locking signaling LOCK, and compare it with the MARK in the electrical erasable memory of the wireless terminal. If the two MARKs are the same, it indicates that the wireless terminal has correctly completed the expansion; Otherwise, it means that the expansion has not been performed or has not been completed correctly.

A set of expansion broadcast signaling BCST for each expansion is in ascending order (0, 1, 2, ..., CH-NUM-1 or 1, 2, ..., CH-NUM) or descending order (CH-NUM-1, ..., 2, 1, 0 or CH-NUM, ..., 2, 1) program their serial numbers and send them out in the order of their serial numbers. The wireless terminal must receive all BCST signaling and its subsequent data frames in this order before performing expansion operations, setting or changing relevant parameters, otherwise, if the sequence number is skipped or missing, it means that all BCST signaling and its subsequent data frames have not been collected. For subsequent data frames, the previously received information will be discarded, and this expansion operation will not be performed, and the capacity will be expanded after the next retransmission. In step 808, it is judged according to the serial number of the received BCST signaling whether the signaling is to be received. The method of judging is: add 1 (ascending order) or subtract 1 (descending order) according to the last correct BCST signaling sequence number, which is the correct sequence number of this BCST signaling.

When the system has multiple workspaces, and only one or several workspaces are expanded, the expansion signaling must also be sent to other workspaces in the system. After receiving the expansion signaling, the wireless terminals in other working areas of the system change the channel parameters in the expanded working area of the wireless terminal according to the area code value Zone in the expansion signaling. When expanding the working area, it can also automatically scan the channels added and/or modified after the expansion.

Claims (10)

1, the control method in a kind of channel associated signalling wireless access communication, be included as each wireless user terminal and set up identity code, block code, in the electricity erasable memorizer of described wireless user terminal, set up the address that is used to deposit identity code, block code, channel number, channel frequency, it is characterized in that: utilize the aerial control signaling between base station and the wireless user terminal to realize described wireless user terminal is controlled, described control method may further comprise the steps:

(1) described wireless user terminal carries out scan round to all channels in the work at present district, if scan a signaling relevant with this wireless user terminal is arranged just on certain channel, then accepts this signaling;

(2) extract contained signaling type sign indicating number in the signaling, judge the type of described signaling according to this signaling type sign indicating number;

(3) signaling type of being judged according to step (2) is provided with, changes the related parameter that has of this wireless terminal.

2, control method according to claim 1 is characterized in that: the operation of described step (3) can comprise:

When judgement is when changing the identity code signaling, to carry out the operation that changes identity code, change wireless user's identity code;

When judgement is when dynamically organizing into groups signaling, carry out the marshalling operation, automatically marshalling;

When judgement is when dynamically deleting the group signaling, carry out and delete the group operation, the deletion designated groups;

When judgement is the dilatation signaling, carry out the dilatation operation, increase automatically and/or revise respective channel.

3, control method according to claim 2 is characterized in that comprising in the signaling format of described change identity code signaling old identity code, new identity code and shows it is the signaling type sign indicating number that changes the identity code signaling; The operation of described change identity code may further comprise the steps:

-extract contained old identity code in the described signaling, compare with the identity code of this wireless terminal, if both are identical, then carry out next step; Otherwise return described step (1), continue the next channel of scanning;

Contained new identity code in the described signaling of-extraction;

-in electricity erasable memorizer, find the address of depositing identity code;

-wipe the old identity code in the described address, write described new identity code.

4, control method according to claim 2, it is characterized in that comprising identity code, block code in the described dynamic marshalling signaling and showing is the signaling type sign indicating number of dynamically organizing into groups signaling; Described marshalling operation can may further comprise the steps:

-extract contained identity code in the described signaling, compare with the identity code of this wireless terminal, if both are identical, then carry out next step; Otherwise return step (1), continue the next channel of scanning;

Contained block code in the described signaling of-extraction;

-in electricity erasable memorizer, find the address of depositing block code, described block code is write the address.

5, control method according to claim 2 is characterized in that described to delete dynamically that group comprises identity code, block code in the signaling and show be the signaling type sign indicating number of dynamically deleting the group signaling; The described group of deleting is operated and can be may further comprise the steps:

-extract contained identity code in the described signaling, compare with the identity code of this wireless terminal, if both are identical, then carry out next step; Otherwise return step (1), continue the next channel of scanning;

Contained block code in the described signaling of-extraction;

-in electricity erasable memorizer, find the address of depositing described block code, wipe described block code.

6, control method according to claim 2 is characterized in that described dilatation signaling comprises channel locks signaling and dilatation broadcast signaling; Comprise in the described channel locks signaling and show it is signaling type sign indicating number, the channel number of channel locks signaling; Comprise the dilatation sequence number in the described dilatation broadcast signaling and by dilatation work area code; In its subsequent data frame, be included as this channel channel appointed number and the receive frequency of this channel and tranmitting frequency;

Described dilatation operation may further comprise the steps:

If-described step (2) judges that described signaling is the channel locks signaling, judge then whether this wireless terminal once correctly finished this time dilatation, was "Yes" as judged result, then returned step (1), continue the next channel of scanning; As judged result is "No", then stops scanning, waits on current channel;

-wireless user terminal is provided with regularly period T with the timer zero clearing;

-in described timing period T, described wireless terminal rests on and receives dilatation broadcast signaling and subsequent data frame thereof on the described current channel, dilatation broadcast signaling of every reception, promptly extract its sequence number, judge according to this sequence number whether its order is correct, if it is incorrect, then stop to receive, withdraw from the dilatation operation, continue the next channel of scanning: every reception one frame data, then extract wherein contained channel number, judge that according to described channel number this dilatation broadcast signaling and subsequent data frame thereof are to increase channel or modification channel;

-after collecting all dilatation broadcast signaling and subsequent data frame thereof, for each dilatation broadcast signaling and subsequent data frame thereof, extract channel number contained in the described Frame, receive frequency and tranmitting frequency, described receive frequency and tranmitting frequency are write in the memory block of respective channel in the electricity erasable memorizer of wireless user terminal;

-wireless user terminal reloads channel parameter, and dilatation finishes, and continues the next channel of scanning.

7, control method according to claim 6 also comprises dilatation content sign indicating number in the described channel locks signaling, be used for identifying the dilatation of different content; Set up the address of depositing dilatation content sign indicating number in the electricity erasable memorizer of described wireless user terminal, wireless user terminal is after receiving the channel locks signaling, extract wherein contained dilatation content sign indicating number and compare with the dilatation content sign indicating number in the electricity erasable memorizer of this wireless terminal, if two dilatation content sign indicating numbers are identical, show that then this wireless terminal correctly finishes this time dilatation; Otherwise, show and do not finish this time dilatation; After dilatation is finished, wipe electricity erasable memorizer Central Plains dilatation content sign indicating number, write the dilatation content sign indicating number of this dilatation.

8, control method according to claim 6, when there are a plurality of service areas in system, and when only dilatation being carried out in one of them or several service area, the dilatation signaling is also sent this intrasystem all workspaces, wireless user terminal in the system in each service area changes in this wireless terminal by the channel parameter of dilatation service area according to the work area code in the described dilatation signaling after receiving the dilatation signaling.

9, according to the described control method of the arbitrary claim of claim 1-8, it is characterized in that: described aerial control signaling adopts digital frame structure, and adopts the MSK modulation system.

10, according to the described control method of the arbitrary claim of claim 1-8, it is characterized in that: the signaling type sign indicating number of described change identity code signaling, the signaling type sign indicating number of described dynamic marshalling signaling, the described signaling type sign indicating number of dynamically deleting the group signaling, the signaling type sign indicating number of described channel locks signaling is made as mutually different binary code respectively.

Images