CN105101100A - Method and system for controlling group sending of packet data, and control center - Google Patents
Method and system for controlling group sending of packet data, and control center Download PDFInfo
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- CN105101100A CN105101100A CN201510346120.1A CN201510346120A CN105101100A CN 105101100 A CN105101100 A CN 105101100A CN 201510346120 A CN201510346120 A CN 201510346120A CN 105101100 A CN105101100 A CN 105101100A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1083—In-session procedures
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Abstract
This invention discloses a method and a system for controlling group sending of packet data, and a control center. The method comprises the following steps: receiving calling information sent by at least one terminal; judging whether the amount of the terminals sending the calling information is greater than a preset terminal value or not; if so, sending the packet data to the terminals in a group calling mode; if not, judging whether the bit error rate of each terminal is less than a preset bit error rate or not, if so, sending the packet data to the terminals in the group calling mode; if not, sending the packet data to the terminals in a single calling mode. By adopting the method and the system for controlling group sending of the packet data, and the control center, the packet data is sent in the group calling mode or the single calling mode according to the amount of the terminals sending the calling information and the bit error rate of each terminal; thus, the efficiency and success rate for sending the packet data are improved effectively, and the time for sending the packet data is saved.
Description
Technical field
The present invention relates to field of wireless communications systems, particularly relate to a kind of grouped data mass-sending control method, system and control centre.
Background technology
Data private wireless communication system is the perfect latest data specialized communication standard of ETSI (ETSI).In DMR/PDT standard, grouped data is the transmission for carrying the grouped datas such as IP data, short data agreement, long broadcast, terminal staging program, and Packet data service all can be used to call out.Current data traffic transmission has two kinds of modes, i.e. individual calling mode and group calling mode.When the packet data content that system sends to terminal is all the same, it is higher that multiple terminal uses group calling mode to carry out the efficiency of transfer of data, and adopting individual calling mode to carry out the efficiency of transfer of data when terminal quantity is few can be higher.
After individual calling or group calling failure, data receiver (i.e. system) can be carried out repeatedly grouped data and be retransmitted, to ensure to receive grouped data to each terminal.Particularly, each grouped data that system sends comprises tens or more frames.When adopting individual calling mode to send data, system does not send successful fractional frame data for single terminal, and only retransmit this fractional frame data during re-transmission, efficiency is higher, but at every turn can only for single terminal.When adopting group calling mode to send data, system can send data to multiple terminal simultaneously, and to no matter there being how many frame data not send successfully in each terminal, during repeating transmission, all frames all will be retransmitted, and efficiency is lower.
In existing Packet data service, individual calling mode is all adopted to transmit data to single terminal, although the high overall efficiency of single end use efficiency is still lower; Group calling mode is all adopted to multiple terminal, in each terminal all do not send successful frame data all need retransmit, efficiency is also lower.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect of prior art, provides a kind of grouped data to mass-send control method, system and control centre.
The technical solution adopted for the present invention to solve the technical problems is: a kind of grouped data mass-sending control method, comprises the following steps:
Receive the call information that at least one terminal sends;
Judge whether the terminal quantity sending described call information is greater than default terminal value;
If so, group calling mode is then adopted to send grouped data to described terminal;
If not, then judge whether the error rate of terminal described in each is less than the default error rate, if so, then adopt group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.
Preferably, describedly judge whether the error rate of terminal described in each is less than the default error rate and comprises: receive the field intensity information that each terminal sends, the error rate corresponding to described field intensity information inquired about by field intensity bit error rate relation table according to prestoring, and judge whether the described error rate is less than the default error rate.
Preferably, also comprise the steps:
Receive the feedback information of described terminal, described feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat;
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value;
If so, group calling mode is then adopted to retransmit whole frames of three described grouped datas to described residual terminal;
If not, then individual calling mode is adopted to retransmit the partial frame taken defeat in described grouped data to described residual terminal.
Preferably, also comprise:
Again receive the feedback information of described terminal, described feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat;
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value;
If so, group calling mode is then adopted to retransmit whole frames of described grouped data to described residual terminal;
If not, then individual calling mode is adopted to retransmit the partial frame taken defeat in described grouped data to described residual terminal.
Also provide a kind of control centre, described control centre comprises: memory and processor, and described memory is used for stored program instruction, and described processor is used for performing following steps according to described program command:
Receive the call information that at least one terminal sends;
Judge whether the terminal quantity sending described call information is greater than default terminal value;
If so, group calling mode is then adopted to send grouped data to described terminal;
If not, then judge whether the error rate of terminal described in each is less than the default error rate, if so, then adopt group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.
Preferably, described processor is also for performing following steps: receive the field intensity information that each terminal sends, the error rate corresponding to described field intensity information inquired about by the field intensity bit error rate relation table according to prestoring, and judge whether the described error rate is less than the default error rate.
Preferably, described processor is also for performing following steps:
Receive the feedback information of described terminal, described feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat;
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value;
If so, group calling mode is then adopted to retransmit whole frames of three described grouped datas to described residual terminal;
If not, then individual calling mode is adopted to retransmit the partial frame taken defeat in described grouped data to described residual terminal.
Preferably, described processor is also for performing following steps:
Again receive the feedback information of described terminal, described feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat;
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value;
If so, group calling mode is then adopted to retransmit whole frames of described grouped data to described residual terminal;
If not, then individual calling mode is adopted to retransmit the partial frame taken defeat in described grouped data to described residual terminal.
Also provide a kind of control centre, described control centre comprises:
Receiving element, for receiving the call information that at least one terminal sends;
Judging unit, for judging whether the terminal quantity sending described call information is greater than default terminal value;
First Executive Module, during for the result that judges at described judging unit as being, adopts group calling mode to send grouped data to described terminal;
Second Executive Module, when the result for judging at described judging unit is no, judges whether the error rate of terminal described in each is less than the default error rate, if so, then adopts group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.
Also provide a kind of grouped data to mass-send adjustment control system, comprise terminal and control centre, wherein, described terminal, for sending call information;
Described control centre, for the call information that basis receives, performs following steps:
Judge whether the terminal quantity sending described call information is greater than default terminal value;
If so, group calling mode is then adopted to send grouped data to described terminal;
If not, then judge whether the error rate of terminal described in each is less than the default error rate, if so, then adopt group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.
The present invention compared with prior art tool has the following advantages: implement the present invention, select to adopt group calling mode or individual calling mode to send grouped data according to the error rate of the terminal quantity and each terminal that send call information, effectively can improve efficiency and the success rate of grouped data transmission, save the time that grouped data sends.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is a flow chart of grouped data mass-sending control method in the embodiment of the present invention 1.
Fig. 2 is a flow chart of grouped data mass-sending control method in the embodiment of the present invention 2.
Fig. 3 is a flow chart of grouped data mass-sending control method in the embodiment of the present invention 3.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
Embodiment 1
Fig. 1 illustrates the grouped data mass-sending control method in the present embodiment.This grouped data mass-sending control method comprises the following steps:
S11: receive the call information that at least one terminal sends.
S12: judge whether the terminal quantity sending call information is greater than default terminal value.
Such as can preset terminal value is 5.
S13: if so, then adopt group calling mode to send grouped data to terminal.
Understandably, if when the terminal quantity sending call information is more than 6 or 6, the call time that the call time adopting group calling mode to send grouped data sends grouped data than employing individual calling mode is short, is conducive to saving time, improves the efficiency that grouped data sends.
S14: if not, then judge whether the error rate of each terminal is less than the default error rate, if so, then adopts group calling mode to send grouped data to terminal; If not, then individual calling mode is adopted to send grouped data to terminal.
In the present embodiment, can preset the error rate is 1%.Being in the example of 5 with default terminal value, if the error rate of less than 5 or 5 terminals is all less than 1%, then adopts group calling mode to send grouped data, be conducive to improving grouped data transmitting efficiency, save transmitting time.If the error rate of any terminal is more than or equal to 1% in less than 5 or 5 terminals, then the time that the time adopting individual calling mode to send grouped data sends grouped data than employing group calling mode is short, is conducive to improving grouped data transmitting efficiency, saves transmitting time.
Particularly, judge whether the error rate of each terminal is less than default error rate step and comprises: receive the field intensity information that each terminal sends, the error rate corresponding according to the field intensity bit error rate relation table inquiry field intensity information prestored, and judge whether the error rate is less than the default error rate.
Particularly, preset terminal value and the default error rate to be determined by the error rate of following different terminals quantity and group calling and individual calling time contrast test.
In contrast test, utilize MATLAB to emulate, adopt 1/2 code check, data length is 100 frames, the terminal of adding up multiple different error rate receives the required time of the grouped data of the method transmission adopting group calling mode or individual calling mode and the application to provide respectively, and its result as shown in Table 1.As shown in Table 1, when multiple terminal initiates data service simultaneously, cannot terminal quantity how many, it is the shortest that grouped data mass-sending control method provided by the present invention sends grouped data required time, and data transmission efficiency is the highest.
As shown in Table 1, the terminal call time is directly proportional to the terminal error rate, and the error rate is larger, then its terminal call time is longer, and grouped data transmitting efficiency is lower.
As shown in Table 1, if when terminal quantity is more than 6 or 6, in any error rate situation, group calling mode is adopted to send grouped data required time shorter than adopting individual calling mode to send grouped data required time, more be conducive to improving grouped data transmitting efficiency, save transmitting time; Therefore default terminal value is set to 5.
As shown in Table 1, if when terminal quantity is 3,4 or 5, when the error rate of all terminals is 1%, group calling mode is adopted to send grouped data required time shorter than adopting individual calling mode to send grouped data required time; When the error rate of any terminal is greater than 1%, individual calling mode is adopted to send grouped data required time short; Therefore the default error rate is set to 1%.
Table one many terminals send grouped data required time (unit is second) under different method of calling
Embodiment 2
Fig. 2 illustrates the grouped data mass-sending control method in the present embodiment.Understandably, the grouped data mass-sending control method that embodiment 2 provides completes on the basis of embodiment 1, and this control method also comprises the steps:
S21: the feedback information of receiving terminal, feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat.
S22: judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value.
S23: if so, then adopt group calling mode to retransmit whole frames of three grouped datas to residual terminal.Because the error rate of most terminal is within 1%, retransmits and substantially all successfully can send grouped data three times, send and part may be only had for 1 or 2 time to send successfully, therefore limit re-transmission 3 times, to improve the success rate that grouped data sends.
S24: if not, then adopt the partial frame that individual calling mode takes defeat in residual terminal retransmission packet data.
Understandably, when residual terminal quantity is greater than 5, adopt whole frames of group calling mode retransmission packet data, the partial frame without the need to taking defeat to multiple residual terminal judges and retransmits respectively, is conducive to improving the efficiency to residual terminal retransmission packet data.When residual terminal quantity is below 5 or 5, adopts individual calling mode to retransmit to residual terminal the partial frame that each terminal takes defeat respectively, avoid whole frame to retransmit and cause data transmission efficiency to reduce.
Embodiment 3
Fig. 3 illustrates the grouped data mass-sending control method in the present embodiment.Understandably, the grouped data mass-sending control method that embodiment 3 provides completes on the basis of embodiment 2, and this control method also comprises the steps:
S31: the feedback information of receiving terminal again, feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat.
S32: judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value.
S33: if so, then adopt group calling mode to whole frames of residual terminal retransmission packet data.Understandably, in step S21-S24, grouped data is retransmitted three times, the error rate be 1% terminal substantially all successfully can receive grouped data; The present embodiment is greater than the terminal of the unsuccessful reception grouped data of 1% mainly for the error rate.
S34: if not, then adopt the partial frame that individual calling mode takes defeat in residual terminal retransmission packet data.
Understandably, when residual terminal quantity is greater than 5, adopt whole frames of group calling mode retransmission packet data, the partial frame without the need to taking defeat to multiple residual terminal judges and retransmits respectively, is conducive to improving the efficiency to residual terminal retransmission packet data.When residual terminal quantity is below 5 or 5, adopts individual calling mode to retransmit to residual terminal the partial frame that each terminal takes defeat respectively, avoid whole frame to retransmit and cause data transmission efficiency to reduce.
The present invention also provides a kind of grouped data to mass-send adjustment control system, and comprise terminal and control centre, wherein, terminal, for sending call information;
Control centre, for the call information that basis receives, performs following steps:
Judge whether the terminal quantity sending call information is greater than default terminal value.Particularly, default terminal value is 5.
If so, group calling mode is then adopted to send grouped data to terminal.As shown in Table 1, if when the terminal quantity sending call information is more than 6 or 6, the call time that the call time adopting group calling mode to send grouped data sends grouped data than employing individual calling mode is short, is conducive to saving time, improves the efficiency that grouped data sends.
If not, then judge whether the error rate of terminal described in each is less than the default error rate, if so, then adopt group calling mode to send grouped data to terminal; If not, then individual calling mode is adopted to send described grouped data to terminal.In the present embodiment, this default error rate is 1%.Understandably, if the error rate of less than 5 or 5 terminals is all less than 1%, then adopts group calling mode to send grouped data, be conducive to improving grouped data transmitting efficiency, save transmitting time.If the error rate of any terminal is more than or equal to 1% in less than 5 or 5 terminals, then the time that the time adopting individual calling mode to send grouped data sends grouped data than employing group calling mode is short, is conducive to improving grouped data transmitting efficiency, saves transmitting time.
Particularly, control centre is also for performing following steps: receive the field intensity information that each terminal sends, the error rate corresponding according to the field intensity bit error rate relation table inquiry field intensity information prestored, and judges whether the error rate is less than the default error rate.
Particularly, control centre is also for according to following steps:
The feedback information of receiving terminal, feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat.
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value.
If so, group calling mode is then adopted to retransmit whole frames of three grouped datas to residual terminal.Because the error rate of most terminal is within 1%, retransmits and substantially can all send successfully three times, send and part may be only had for 1 or 2 time to send successfully, therefore limit re-transmission 3 times, to improve the success rate that grouped data sends.
If not, then the partial frame adopting individual calling mode to take defeat in residual terminal retransmission packet data.
Understandably, when residual terminal quantity is greater than 5, adopt whole frames of group calling mode retransmission packet data, the partial frame without the need to taking defeat to multiple residual terminal judges and retransmits respectively, is conducive to improving the efficiency to residual terminal retransmission packet data.When residual terminal quantity is below 5 or 5, adopts individual calling mode to retransmit to residual terminal the partial frame that each terminal takes defeat respectively, avoid whole frame to retransmit and cause data transmission efficiency to reduce.
Particularly, control centre is also for according to following steps:
The feedback information of receiving terminal again, feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat.
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value.
If so, then adopt group calling mode to whole frames of residual terminal retransmission packet data, this step is greater than the terminal of the unsuccessful reception grouped data of 1% mainly for the error rate.
If not, then the partial frame adopting individual calling mode to take defeat in residual terminal retransmission packet data.
Understandably, when residual terminal quantity is greater than 5, adopt whole frames of group calling mode retransmission packet data, the partial frame without the need to taking defeat to multiple residual terminal judges and retransmits respectively, is conducive to improving the efficiency to residual terminal retransmission packet data.When residual terminal quantity is below 5 or 5, adopts individual calling mode to retransmit to residual terminal the partial frame that each terminal takes defeat respectively, avoid whole frame to retransmit and cause data transmission efficiency to reduce.
The present invention also provides a kind of grouped data to mass-send the control centre adjusted in control system, and this control centre comprises receiving element, judging unit, the first Executive Module and the second Executive Module.
Wherein, receiving element is for receiving the call information of at least one terminal transmission.Judging unit is for judging whether the terminal quantity sending call information is greater than default terminal value.First Executive Module is used for when the result that described judging unit judges is as being, adopts group calling mode to send grouped data to described terminal.Second Executive Module is used for when the result that described judging unit judges is no, judges whether the error rate of terminal described in each is less than the default error rate, if so, then adopts group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.The grouped data mass-sending adjustment control system of other functions in some embodiments of the invention of this control centre carries out related description, repeats no more herein.
The present invention is described by several specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to substituting to the present invention.In addition, for particular condition or concrete condition, various amendment can be made to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole execution modes fallen within the scope of the claims in the present invention.
Claims (10)
1. a grouped data mass-sending control method, is characterized in that: comprise the following steps:
Receive the call information that at least one terminal sends;
Judge whether the terminal quantity sending described call information is greater than default terminal value;
If so, group calling mode is then adopted to send grouped data to described terminal;
If not, then judge whether the error rate of terminal described in each is less than the default error rate, if so, then adopt group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.
2. grouped data mass-sending control method according to claim 1, it is characterized in that: describedly judge whether the error rate of terminal described in each is less than the default error rate and comprises: receive the field intensity information that each terminal sends, the error rate corresponding to described field intensity information inquired about by field intensity bit error rate relation table according to prestoring, and judge whether the described error rate is less than the default error rate.
3. grouped data mass-sending control method according to claim 1 and 2, is characterized in that: also comprise the steps:
Receive the feedback information of described terminal, described feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat;
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value;
If so, group calling mode is then adopted to retransmit whole frames of three described grouped datas to described residual terminal;
If not, then individual calling mode is adopted to retransmit the partial frame taken defeat in described grouped data to described residual terminal.
4. grouped data mass-sending control method according to claim 3, is characterized in that: also comprise:
Again receive the feedback information of described terminal, described feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat;
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value;
If so, group calling mode is then adopted to retransmit whole frames of described grouped data to described residual terminal;
If not, then individual calling mode is adopted to retransmit the partial frame taken defeat in described grouped data to described residual terminal.
5. a control centre, is characterized in that, described control centre comprises: memory and processor, and described memory is used for stored program instruction, and described processor is used for performing following steps according to described program command:
Receive the call information that at least one terminal sends;
Judge whether the terminal quantity sending described call information is greater than default terminal value;
If so, group calling mode is then adopted to send grouped data to described terminal;
If not, then judge whether the error rate of terminal described in each is less than the default error rate, if so, then adopt group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.
6. control centre according to claim 5, it is characterized in that: described processor is also for performing following steps: receive the field intensity information that each terminal sends, the error rate corresponding to described field intensity information inquired about by field intensity bit error rate relation table according to prestoring, and judge whether the described error rate is less than the default error rate.
7. the control centre according to claim 5 or 6, is characterized in that: described processor is also for performing following steps:
Receive the feedback information of described terminal, described feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat;
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value;
If so, group calling mode is then adopted to retransmit whole frames of three described grouped datas to described residual terminal;
If not, then individual calling mode is adopted to retransmit the partial frame taken defeat in described grouped data to described residual terminal.
8. control centre according to claim 7, is characterized in that: described processor is also for performing following steps:
Again receive the feedback information of described terminal, described feedback signal comprises whole frame and receives the second feedback information that successful first feedback information and partial frame take defeat;
Judge whether the residual terminal quantity of transmission second feedback information is greater than default terminal value;
If so, group calling mode is then adopted to retransmit whole frames of described grouped data to described residual terminal;
If not, then individual calling mode is adopted to retransmit the partial frame taken defeat in described grouped data to described residual terminal.
9. a control centre, is characterized in that, described control centre comprises:
Receiving element, for receiving the call information that at least one terminal sends;
Judging unit, for judging whether the terminal quantity sending described call information is greater than default terminal value;
First Executive Module, during for the result that judges at described judging unit as being, adopts group calling mode to send grouped data to described terminal;
Second Executive Module, when the result for judging at described judging unit is no, judges whether the error rate of terminal described in each is less than the default error rate, if so, then adopts group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.
10. a grouped data mass-sending adjustment control system, it is characterized in that: comprise terminal and control centre, wherein, described terminal, for sending call information;
Described control centre, for the call information that basis receives, performs following steps:
Judge whether the terminal quantity sending described call information is greater than default terminal value;
If so, group calling mode is then adopted to send grouped data to described terminal;
If not, then judge whether the error rate of terminal described in each is less than the default error rate, if so, then adopt group calling mode to send grouped data to described terminal; If not, then individual calling mode is adopted to send described grouped data to described terminal.
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