CN102711272A - Data transmission method and device for private network communication - Google Patents
Data transmission method and device for private network communication Download PDFInfo
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Abstract
The embodiment of the invention discloses a data transmission method and a data transmission device for private network communication. The method comprises the following steps of: acquiring a data transmission identifier of a terminal, wherein the data transmission identifier is used for indicating a standard transmission time length within which data is transmitted in a current transmission period to the terminal, wherein the standard transmission time length is the sum of a data transmission time length and preset guard time; resolving the data transmission identifier to obtain the position of the standard transmission time length within which the data can be transmitted by the terminal in the current transmission period; and when the standard transmission time length within which the data can be transmitted by the terminal is determined to be reached, and the terminal is in a data transmission service state, starting transmitting the data. According to the embodiment of the invention, the problems of low channel resource utilization rate and incapability of ensuring the data transmission period of the terminal in the prior art can be solved.
Description
Technical field
The application relates to the private network communication field, data transmission method and device in particularly a kind of private network communication.
Background technology
Private wire network or title private network replenish as public network or a kind of of title public network, and it is meant at some industries, department or internal institution, carries out the communication network that needs such as organization and administration, safety in production, dispatch control are built for satisfying it.Generally it only provides non-profit-making telecommunications service to inside, does not bear the obligation of social universal service.For example, private wire network has been widely used in fields such as electric power, oil, metallurgy and traffic.Today, along with the development and the development of technology of society, the status of private network also changes constantly taking place with effect.
See also shown in Figure 1ly, it is the structural representation of prior art special secondary school network communication system.As shown in Figure 1, this system comprises several terminals, a message center and a server that links to each other with message center.Data transmission procedure based on this private network communication system is: each terminal sends to message center with terminal data, and message center is sent to the terminal data that receives on the server again, so that server carries out various processing to terminal data.Accordingly, server sends to message center with control data, and message center sends to relevant terminal with control data again.
In private network communication, because therefore the scarcity of frequency resource, need support the transfer of data of multichannel under fixing channel resource.In the prior art, each terminal is in idle condition in case detect channel after start, and data are just transmitted through the mode of seizing channel resource in a plurality of terminals, is in busy state if detect channel, continue to detect after will postponing a period of time again.
In realizing process of the present invention, inventor of the present invention finds to exist at least in the prior art following problem: though private network communication method of the prior art is simple, and realize easily.But; Because the terminal is in busy state following time detecting channel, just continue to detect after needing to postpone a period of time, and channel might just be in idle condition in time of delay; Therefore; Under existing mode, the service efficiency of channel resource is very low, and this problem was particularly outstanding when especially terminal number was numerous.In addition, for the terminal, its transfer of data need be followed certain transmission cycle in the practical application, under existing mode, can't rob when accounting for channel resource when the terminal, also can't guarantee its data transfer cycle.
Summary of the invention
In order to solve the problems of the technologies described above, the application embodiment provides data transmission method and the device in a kind of private network communication, to solve the problem that channel resource utilization rate in the prior art is low and can't guarantee the data transfer cycle at terminal.
The application embodiment discloses following technical scheme:
Data transmission method in a kind of private network communication comprises:
Obtain the transfer of data sign at terminal; Wherein, Longer transmission data when said transfer of data sign is used to indicate which standardization of said terminal in current transmission cycle to transmit; Said standardization transmission duration is that of data is transmitted duration and the addition summation of preset protection time, and said guard time is the maximum that data all terminal inners in the private network communication system transmit and handle the time delay that is produced;
Resolve said transfer of data sign, obtain the position of the standardization of data the transmitted transmission duration at said terminal at current transmission cycle;
The standardization of data transmitted transmission duration confirming said terminal arrives, and said terminal begins to transmit data when being in the data transmission service state.
Data transmission device in a kind of private network communication comprises:
Acquiring unit; Be used to obtain the transfer of data sign at said terminal; Wherein, Be longer than the addition summation of preset protection time when longer transmission data when said transfer of data sign is used to indicate which standardization transmission of said terminal in current transmission cycle, transmission that said standardization transmission duration is data, said guard time is the maximum of the time delay that produced of all terminal inners transmission and the processing of data in the private network communication system;
Resolution unit is used to resolve said transfer of data sign, obtains the position of the standardization of data the transmitted transmission duration at said terminal at current transmission cycle;
Transmission unit is used for arriving often in the standardization of data the transmitted transmission of confirming said terminal, and said terminal begins to transmit data when being in the data transmission service state.
Can find out that by the foregoing description compared with prior art, the application has following advantage:
For the terminal, in case distributed the transfer of data sign, just be equivalent in each transmission cycle, distribute a transmission time that the transmission data are used, like this, when having data to transmit at the terminal, just can guarantee the data transfer cycle at terminal.And all according to the time transmission data of its transfer of data sign defined, when transfer of data, the terminal can not bump each other, the low problem of channel resource utilization rate with regard to having avoided producing because of the collision castle yet at each terminal.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; For those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of prior art special secondary school network communication system;
Fig. 2 is the flow chart of an embodiment of the data transmission method in a kind of private network communication of the application;
Fig. 3 is a transmission cycle and the sketch map that concerns that transmits duration among the application;
Fig. 4 is the flow chart of another embodiment of the data transmission method in a kind of private network communication of the application;
Fig. 5 is a kind of data transmission method for uplink flow chart in the gps system of private network communication of the application;
Fig. 6 is the structure chart of an embodiment of the data transmission device in a kind of private network communication of the application;
A structural representation of acquiring unit in the device that Fig. 7 the application embodiment four describes;
Fig. 8 is another structural representation of acquiring unit in the device described of the application embodiment four;
Fig. 9 is the structure chart of another embodiment of the data transmission device in a kind of private network communication of the application.
Embodiment
In the application's technical scheme, through transfer of data sign, the time of in current transmission cycle, transmit data for the terminal distribution that is in the private network, that is, and longer transmission data when which standardization in current period is transmitted.Like this, for the terminal,, just be equivalent in each transmission cycle, distribute a transmission time that the transmission data are used, like this, when having data to transmit at the terminal, just can have guaranteed the data transfer cycle at terminal in case distributed the transfer of data sign.And all according to the time transmission data of its transfer of data sign defined, when transfer of data, the terminal can not bump each other, the low problem of channel resource utilization rate with regard to having avoided producing because of the collision castle yet at each terminal.
Need to prove that " transfer of data " among the application can be sent data for the terminal, perhaps also can receive data for the terminal.That is to say that data are sent at the terminal or terminal reception data all are applicable to the method for introducing among each embodiment of the application.
" terminal " among the application can be Vehicle mounted station, hand platform, intermediate station or channel device.
Below in conjunction with accompanying drawing and embodiment, the application embodiment is described in detail.Should be appreciated that specific embodiment described herein only in order to explanation the application, and be not used in qualification the application.
Embodiment one
See also Fig. 2, it is the flow chart of an embodiment of the data transmission method in a kind of private network communication of the application, may further comprise the steps:
Step 201: the transfer of data sign of obtaining the terminal; Wherein, Longer transmission data when said transfer of data sign is used to indicate which standardization of said terminal in current transmission cycle to transmit; Be longer than the addition summation of preset protection time when said standardization transmission duration is transmission of data, said guard time be data in the private network communication system all terminal inners transmission and handle the maximum of the time delay that is produced;
According to client's demand, a secondary data is sent at the terminal in the private network communication at least in the regular hour, and this section period is a transmission cycle of data.Equally, when receiving data, also there is a receiving cycle, requires the terminal in a receiving cycle, receive a secondary data at least.That is, in a transmission cycle, the transmission primaries data are wanted at the terminal at least.And in private network communication, each terminal is sent data or is received a required time of data and also fixes, and sends data or receive a required time of data to be one and to transmit duration.Therefore, the relation between transmission cycle and the transmission duration is as shown in Figure 3, and Fig. 3 is a transmission cycle and the sketch map that concerns that transmits duration among the application.Wherein, T1 is a transmission duration, and TC is a transmission cycle, and a transmission cycle TC has comprised several transmission durations T1.
When each transmission duration was cut apart in the transmission cycle in each terminal unification in the private network communication system, each terminal must be satisfied and had the unified time benchmark.In case the time reference disunity at each terminal will impact when transfer of data each other.For example; Terminal A is distributed in first transmission duration sends data; Terminal B is distributed in the second transmission duration sends data, A and terminal B internal transmission and time delay that processing produced are different if data are at the terminal, then terminal A and terminal B transmit these data time reference also with regard to disunity; Terminal A probably arrives back a period of time at first transmission duration; Think that just first transmission duration arrives and begins to send data, at this moment, terminal A just begins to send data because the problem of time reference causes it to postpone a period of time; And then the time that causes terminal A when sending data, can account for second transmission duration, finally cause terminal B normally to send data at second transmission duration.
When the transmission duration has increased a guard time, be equivalent to prolong the data transmission period at terminal.Like this; Data can be sent any a period of time in the data transmission period that prolongs in the terminal; Even when the transmission data, have delay owing to the time reference disunity, the data transmission period at other terminal can not appear taking yet, can not have influence on the transfer of data of other-end.Be example still with top terminal A and terminal B; After the first transmission duration is added a guard time; Even terminal A just begins to send data because the problem of time reference causes it to postpone a period of time and since the time lengthening of its transmission data the length of a guard time, therefore; Terminal A can not account for the time of second transmission duration when sending data, just can not exert an influence to terminal B yet.Equally, for after terminal B adds a guard time, terminal B can not exert an influence to terminal C yet, by that analogy.
Therefore, this guard time is the maximum that data all terminal inners in the private network communication system transmit and handle the time delay that is produced.As, include three terminals in certain private network communication system: terminal A, terminal B and terminal C, A internal transmission and time delay that processing produced are 12ms to data at the terminal, B internal transmission and time delay that processing produced are 13ms to data at the terminal.C internal transmission and time delay that processing produced are 15ms to data at the terminal, and then guard time is decided to be 15ms.
In the application of reality, the terminal is that a chronomere carries out transfer of data with minimum time slot when the transmission data; Therefore; Confirmed a guard time according to maximum after, also should guard time be rounded according to the value of minimum time slot, as; When minimum time slot is 60ms, above-mentioned definite guard time further rounded is 60ms.
Therefore, as a kind of preferred value, said guard time is all terminal inners transmission and the maximums maximum of handling the time delay that produced and the minimum time slot that transmit data between of data in the private network communication system.
Because the intensity of the time delay that all terminal inners transmission and handle of data in the private network communication system produced and the communication standard of private network communication system employing, the processing platform that adopts at the terminal and signal of communication is relevant; Therefore, the intensity of the communication standard that also just adopts with the private network communication system of guard time, the processing platform that adopts at the terminal and signal of communication is relevant.Pass through experiment test; Preferably; For DMR (Digital Mobile Radio, the data mobile radio) agreement or PDT (the Police Digital Trunking that adopt TDMA (Time Division Multiple Access, time division multiple access); The alert Digital Clustering of using) terminal of standard, guard time is 60ms.That is, T1+60ms is a standardization transmission duration unit.
After the data transmission period that has prolonged the terminal, the standardization transmission duration at each terminal is distributed in the form indication that can be adopted as the unified numbering in all terminals in the private network communication system.
As shown in the table.In each transmission cycle, first transmission duration is distributed to terminal A, second transmission duration distributed to terminal B, the 3rd transmission duration distributed to terminal C......, n transmission duration distributed to terminal N.
The transfer of data sequence number of terminal and distribution thereof and standardization transmission duration relation table
In the application embodiment, the terminal can obtain the transfer of data sign from the configuration information of self, also can obtain the transfer of data sign from the miscellaneous equipment in the private network communication system.
If from the configuration information of self, obtain the transfer of data sign, preferred, the said transfer of data sign of obtaining the terminal, place comprises: in the localized configuration information at terminal, place, search the data transmission information that comprises the transfer of data sign that belongs to the terminal; From said data transmission information, extract the transfer of data sign at terminal, place.
The terminal is identified at the indicated fixing standardization transmission duration transmitting data of this sign according to the transfer of data that self disposes in this method.This method often more is applicable in the private network communication system of normal mode.The private network communication system of so-called normal mode is exactly that in this system, calling terminal directly is dealt into intrasystem other terminal called with signal.
When need carrying out flexible allocation, when perhaps needing the expansion at terminal in the back-up system, can utilize an expansion equipment of exterior of terminal the transfer of data sign of terminal inner configuration is rewritten or to expand to the channel resource of configuration.
Another kind of implementation is: obtain the transfer of data sign from miscellaneous equipment, the then said transfer of data sign of obtaining the terminal, place comprises: send transfer of data sign request for allocation to message center, comprise the terminal iidentification that belongs to the terminal in the said request for allocation; Receive said message center and distribute to the transfer of data sign at terminal, place according to said terminal iidentification.This method often more is applicable to the private network communication system of cluster mode.The private network communication system of so-called cluster mode is exactly; In this system, calling terminal is dealt into message center with signal earlier, like the base station; Message center is searched an idle channel in channel resource, notify calling terminal and terminal called to the idle channel of appointment, to communicate then.
It is thus clear that; This method is compared with preceding a kind of method, does not need the help of other outside expansion equipment, directly is each terminal configuration data transmission sign flexibly by message center; According to the flexible configuration of message center, same terminal can be at different transfer of data duration transmitting datas.This method often more is applicable in the private network communication system of cluster mode.
Step 202: resolve said transfer of data sign, obtain the position of the standardization of data the transmitted transmission duration at said terminal at current transmission cycle;
For example, for the A of terminal,, can obtain transmission terminal A and go up data transmission when first standardization transmission duration of current transmission cycle arrives through resolution data transmission sign.
Step 203: when the standardization of data the transmitted transmission duration of confirming said terminal arrives, and said terminal begins to transmit data when being in the data transmission service state.
For example, for the A of terminal, behind the position that obtains standardization transmission duration,, just, first standardization transmission duration of current transmission cycle transmits data when arriving if terminal A is in the data transmission service state.
The position of standardization transmission duration in current transmission cycle that obtains in the above-mentioned steps 202 only is a relative time of transmission data; In this step 203; The detailed process of " in the standardization of data the transmitted transmission duration at said terminal, transmitting data " comprises: obtain absolute time earlier; Transmit the time of duration in the position calculation transmission data of current transmission cycle, transmission data when the time that calculates arrives at last according to absolute time and standardization again.
For example, all there is GPS (Global Positioning System, global positioning system) module at the terminal usually, can from the GPS module at terminal, place, obtain gps time information, and this gps time information is absolute time.
Can find out that by the foregoing description compared with prior art, the technical scheme of present embodiment has following advantage:
For the terminal, in case distributed the transfer of data sign, just be equivalent in each transmission cycle, distribute a transmission time that the transmission data are used, like this, when having data to transmit at the terminal, just can guarantee the data transfer cycle at terminal.And all according to the time transmission data of its transfer of data sign defined, when transfer of data, the terminal can not bump each other, the low problem of channel resource utilization rate with regard to having avoided producing because of the collision castle yet at each terminal.
In addition, the technical scheme of present embodiment is only transformed the terminal, can be compatible with existing message center.
Embodiment two
Compare with the foregoing description one; The difference of present embodiment two is: before above-mentioned steps 203, need judge also whether the terminal is in the data transmission service state, if be not in the data transmission service state; The terminal is switched to the data transmission service state, to guarantee that data are transmitted smoothly.See also Fig. 4, it is the flow chart of another embodiment of the data transmission method in a kind of private network communication of the application, comprises the steps:
Step 401: the transfer of data sign of obtaining the terminal; Wherein, Longer transmission data when said transfer of data sign is used to indicate which standardization of said terminal in current transmission cycle to transmit; Said standardization transmission duration is that of data is transmitted duration and the addition summation of preset protection time, and said guard time is the maximum that data all terminal inners in the private network communication system transmit and handle the time delay that is produced;
Step 402: resolve said transfer of data sign, obtain the position of the standardization of data the transmitted transmission duration at said terminal at current transmission cycle;
Step 403: judge whether said terminal is in the data transmission service state, if, get into step 405, otherwise, step 404 got into;
Step 404: trigger said terminal and switch to the data transmission service state;
Step 405: the standardization of data the transmitted transmission duration confirming said terminal arrives, and said terminal begins to transmit data, process ends when being in the data transmission service state.
Above-mentioned steps 401,402 and 405 concrete implementation are referring to the associated description among the embodiment one, and this repeats no more.
Need to prove; As long as above-mentioned steps 403 and 404 guarantees before step 405, to carry out; And do not limit the execution sequence between itself and step 401 and the step 402; Can carry out according to execution sequence as shown in Figure 4, also can before step 401 and step 402, carry out or carry out simultaneously.
Certainly; When step 403 is judged the terminal, place when not being in the data transmission service state; Except can switching to the data transmission service state; Can also this in the standardization of data the transmitted transmission duration at said terminal, transmit data, and then when guaranteeing not disturb other professional execution, also not disturb the transfer of data at other terminal.
Can find out that by the foregoing description compared with prior art, the technical scheme of present embodiment has following advantage:
For the terminal, in case distributed the transfer of data sign, just be equivalent in each transmission cycle, distribute a transmission time that the transmission data are used, like this, when having data to transmit at the terminal, just can guarantee the data transfer cycle at terminal.And all according to the time transmission data of its transfer of data sign defined, when transfer of data, the terminal can not bump each other, the low problem of channel resource utilization rate with regard to having avoided producing because of the collision castle yet at each terminal.In addition, the technical scheme of present embodiment is only transformed the terminal, can be compatible with existing message center.
The technical scheme of present embodiment can also solve data communication service and other business, like the collision problem of voice communication service.
Embodiment three
Sending gps data with the terminal A in the gps system of private network communication below is example, specifies its data transmission method for uplink.See also Fig. 5, it is a kind of data transmission method for uplink flow chart in the gps system of private network communication of the application, may further comprise the steps:
Step 501: the message center of terminal A start back in system sent data and sent the sign request for allocation, and said data are sent the terminal iidentification that comprises terminal A in the sign request for allocation;
Step 502: message center is sent the corresponding relation between the sign according to terminal iidentification and data, and the data that obtain terminal A are sent sign, and distribute to terminal A;
Certainly; Terminal A can also only send data to message center and send the sign request for allocation; And send an authentication code simultaneously; When message center confirmed terminal A for the following terminal of the private network communication gps system of self managing through authentication code, the mapping table that terminal iidentification and its data at each terminal in this system are sent between the sign sent to terminal A, and terminal A identifies according to self terminal iidentification finds terminal A from this correspondence table data transmission again.
Step 503: terminal A sends sign to data and resolves, and knows that sending duration from the 1st standardization in the current transmission cycle sends data;
Wherein, to send duration be that of data sends duration and sues for peace with the addition of preset protection time in standardization.Preferably, the preset protection time is 60ms.
Transfer of data sequence number and standardization transmission duration relation table according to terminal among the embodiment one and distribution thereof can know that the transfer of data sequence number of terminal A is 1, and the 1st standardization in current period sent duration and sent data.
Step 504: gps time information and the standardization transmission duration of knowing, the time that specified data is sent that terminal A obtains according to the GPS module;
Whether the time that step 505 terminal A judgment data is sent arrives, if, get into step 506, otherwise, circulation execution in step 505;
Step 506: terminal A judges the current data transmission service condition that whether is in, if, get into step 508, otherwise, step 507 got into;
Step 507: terminal A switches to the data transmission service state;
Step 508: send data.
Equally, above-mentioned steps 501-508 also is applicable to the DRP data reception process of terminal A.
Can find out that by the foregoing description compared with prior art, the technical scheme of present embodiment has following advantage:
For the A of terminal, in case distributed data to send sign, just be equivalent in each transmission cycle, distribute one and sent the transmission time that data are used, like this, when A has data to send at the terminal, just can guarantee the data transmitting period of terminal A.And terminal A sends data according to the time that its data are sent the sign defined, and when data were sent, terminal A and other terminal can not bump each other, the low problem of channel resource utilization rate with regard to having avoided producing because of the collision castle yet.In addition, the technical scheme of present embodiment is only transformed terminal A, can be compatible with existing message center.
The technical scheme of present embodiment can also solve data communication service and other business, like the collision problem of voice communication service.
Embodiment four
Corresponding with the data transmission method in a kind of private network communication, the application embodiment also provides the data transmission device in a kind of private network communication.See also Fig. 6, it is the structure chart of an embodiment of the data transmission device in a kind of private network communication of the application.This device comprises: acquiring unit 601, resolution unit 602 and transmission unit 603.Wherein,
Acquiring unit 601; Be used to obtain the transfer of data sign at terminal; Wherein, Be longer than the addition summation of preset protection time when longer transmission data when said transfer of data sign is used to indicate which standardization transmission of said terminal in current transmission cycle, transmission that said standardization transmission duration is data, said guard time is the maximum of the time delay that produced of all terminal inners transmission and the processing of data in the private network communication system;
Preferably, see also Fig. 7, it is a structural representation of acquiring unit in the device described of the application embodiment four, and acquiring unit 601 further comprises: search subelement 6011A and extract subelement 6012A, wherein,
Search subelement 6011A, be used for searching the data transmission information that comprises the transfer of data sign that belongs to the terminal from the localized configuration information at said terminal;
Extract subelement 6012A, be used for extracting the transfer of data sign at said terminal from said data transmission information.
Except structure shown in Figure 7, see also Fig. 8, it is another structural representation of acquiring unit in the device described of the application embodiment four, acquiring unit 601 further comprises: request subelement 6011B and 6012B, wherein,
Request subelement 6011B is used for sending transfer of data sign request for allocation to message center, comprises the terminal iidentification at said terminal in the said request for allocation;
Receive subelement 6012B, be used to receive said message center is distributed to said terminal according to said terminal iidentification transfer of data sign.
Further preferred, the said preset protection time is 60ms.
Need to prove that the device in the present embodiment can be an isolated plant that is positioned at terminal inner, also can be terminal itself.
Can find out that by the foregoing description compared with prior art, the application has following advantage:
For the terminal, in case distributed the transfer of data sign, just be equivalent in each transmission cycle, distribute a transmission time that the transmission data are used, like this, when having data to transmit at the terminal, just can guarantee the data transfer cycle at terminal.And all according to the time transmission data of its transfer of data sign defined, when transfer of data, the terminal can not bump each other, the low problem of channel resource utilization rate with regard to having avoided producing because of the collision castle yet at each terminal.In addition, the technical scheme of present embodiment is only transformed the terminal, can be compatible with existing message center.
Embodiment five
Present embodiment five is with the difference of the foregoing description four; This device also further comprises judging unit and switch unit; Whether be in the data transmission service state by terminal, judgment unit judges place; If be not in the data transmission service state, by switch unit the terminal is switched to the data transmission service state, to guarantee that data are transmitted smoothly.See also Fig. 9, it is the structure chart of another embodiment of the data transmission device in a kind of private network communication of the application.This device comprises: acquiring unit 601, resolution unit 602, transmission unit 603, judging unit 604 and switch unit 605.Wherein,
Acquiring unit 601; Be used to obtain the transfer of data sign at terminal; Wherein, Be longer than the addition summation of preset protection time when longer transmission data when said transfer of data sign is used to indicate which standardization transmission of said terminal in current transmission cycle, transmission that said standardization transmission duration is data, said guard time is the maximum of the time delay that produced of all terminal inners transmission and the processing of data in the private network communication system;
Judging unit 604 is used for arriving often in the standardization of data the transmitted transmission of confirming said terminal, and said terminal is in before the data transmission service state, judges whether said terminal is in the data transmission service state;
The structure of same functional unit repeats no more here in the concrete structure reference implementation example four of above-mentioned acquiring unit 601, resolution unit 602 and transmission unit 603.
Certainly; When the judged result of judging unit 604 for not the time; Above-mentioned switch unit 605 can also replace with abandons the unit, is used in the judged result of said judging unit abandoning in the standardization of data the transmitted transmission duration at said terminal, transmitting data for not the time.
Need to prove that the device in the present embodiment can be an isolated plant that is positioned at terminal inner, also can be terminal itself.
Can find out that by the foregoing description compared with prior art, the application has following advantage:
For the terminal, in case distributed the transfer of data sign, just be equivalent in each transmission cycle, distribute a transmission time that the transmission data are used, like this, when having data to transmit at the terminal, just can guarantee the data transfer cycle at terminal.And all according to the time transmission data of its transfer of data sign defined, when transfer of data, the terminal can not bump each other, the low problem of channel resource utilization rate with regard to having avoided producing because of the collision castle yet at each terminal.In addition, the technical scheme of present embodiment is only transformed the terminal, can be compatible with existing message center.
The technical scheme of present embodiment can also solve data communication service and other business, like the collision problem of voice communication service.
Said apparatus embodiment is and method embodiment corresponding virtual device that the concrete implementation of correlation unit can be referring to corresponding method embodiment.
More than data transmission method in a kind of private network communication that the application provided and device have been carried out detailed introduction; Used specific embodiment among this paper the application's principle and execution mode are set forth, the explanation of above embodiment just is used to help to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, under the principle prerequisite that does not break away from the present invention's description, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. the data transmission method in the private network communication is characterized in that, comprising:
Obtain the transfer of data sign at terminal; Wherein, Longer transmission data when said transfer of data sign is used to indicate which standardization of said terminal in current transmission cycle to transmit; Said standardization transmission duration is that of data is transmitted duration and the addition summation of preset protection time, and said guard time is the maximum that data all terminal inners in the private network communication system transmit and handle the time delay that is produced;
Resolve said transfer of data sign, obtain the position of the standardization of data the transmitted transmission duration at said terminal at current transmission cycle;
The standardization of data transmitted transmission duration confirming said terminal arrives, and said terminal begins to transmit data when being in the data transmission service state.
2. method according to claim 1 is characterized in that, said method also comprises:
The standardization of data transmitted transmission duration confirming said terminal arrives, and said terminal when being in the data transmission service state before, judge whether said terminal is in the data transmission service state; If not,
Then trigger said terminal and switch to the data transmission service state; Perhaps, abandon this and in the standardization of data the transmitted transmission duration at said terminal, transmit data.
3. method according to claim 1 and 2 is characterized in that, the said transfer of data sign of obtaining the terminal comprises:
From the localized configuration information at said terminal, search the data transmission information of the transfer of data sign that comprises said terminal;
From said data transmission information, extract the transfer of data sign at said terminal.
4. method according to claim 1 and 2 is characterized in that, the said transfer of data sign of obtaining the terminal comprises:
Send transfer of data sign request for allocation to message center, comprise the terminal iidentification at said terminal in the said request for allocation;
Receive said message center and distribute to the transfer of data sign at said terminal according to said terminal iidentification.
5. method according to claim 1 and 2 is characterized in that, said guard time is all terminal inners transmission and the maximums maximum of handling the time delay that produced and the minimum time slot that transmit data between of data in the private network communication system.
6. the data transmission device in the private network communication is characterized in that, comprising:
Acquiring unit; Be used to obtain the transfer of data sign at said terminal; Wherein, Be longer than the addition summation of preset protection time when longer transmission data when said transfer of data sign is used to indicate which standardization transmission of said terminal in current transmission cycle, transmission that said standardization transmission duration is data, said guard time is the maximum of the time delay that produced of all terminal inners transmission and the processing of data in the private network communication system;
Resolution unit is used to resolve said transfer of data sign, obtains the position of the standardization of data the transmitted transmission duration at said terminal at current transmission cycle;
Transmission unit is used for arriving often in the standardization of data the transmitted transmission of confirming said terminal, and said terminal begins to transmit data when being in the data transmission service state.
7. device according to claim 6 is characterized in that, said device also comprises: judging unit and switch unit, wherein,
Judging unit is used for arriving at the standardization of data the transmitted transmission duration of confirming said terminal, and said terminal is in before the data transmission service state, judges whether said terminal is in the data transmission service state;
Switch unit is used in the judged result of said judging unit triggering said terminal and switching to the data transmission service state for not the time;
Perhaps, judging unit with abandon the unit, wherein,
Judging unit is used for arriving at the standardization of data the transmitted transmission duration of confirming said terminal, and said terminal is in before the data transmission service state, judges whether said terminal is in the data transmission service state;
Abandon the unit, be used in the judged result of said judging unit abandoning in the standardization of data the transmitted transmission duration at said terminal, transmitting data for not the time.
8. according to claim 6 or 7 described devices, it is characterized in that said acquiring unit comprises:
Search subelement, be used for searching the data transmission information of the transfer of data sign that comprises said terminal from the localized configuration information at said terminal;
Extract subelement, be used for extracting the transfer of data sign at said terminal from said data transmission information.
9. according to claim 6 or 7 described devices, it is characterized in that said acquiring unit comprises:
The request subelement is used for sending transfer of data sign request for allocation to message center, comprises the terminal iidentification at said terminal in the said request for allocation;
Receive subelement, be used to receive said message center is distributed to said terminal according to said terminal iidentification transfer of data sign.
10. according to claim 6 or 7 described devices, it is characterized in that said guard time is all terminal inners transmission and the maximums maximum of handling the time delay that produced and the minimum time slot that transmit data between of data in the private network communication system.
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