CN103582032A - Wireless voice and data communication system capable of achieving multipriority services and method - Google Patents
Wireless voice and data communication system capable of achieving multipriority services and method Download PDFInfo
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- CN103582032A CN103582032A CN201210267975.1A CN201210267975A CN103582032A CN 103582032 A CN103582032 A CN 103582032A CN 201210267975 A CN201210267975 A CN 201210267975A CN 103582032 A CN103582032 A CN 103582032A
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Abstract
Provided are a wireless voice and data communication system capable of achieving multipriority services and a method. The superframe structure of a DMR air interface is utilized, and a period of time is reserved for access of a terminal every one or two superframe times. Any superframe for burst is stolen at will to be used as the access time of other terminals, and the time slot is defined as a 'channel access time slot'. The superframe structure in a DMR is used for achieving the multipriority characteristic of voice and data services, and therefore the needs of professional clients for the service priority can be met better, and DMR technical standards can be suitable for more application occasions. The wireless voice and data communication system capable of achieving the multipriority services and the method have the advantages that based on the existing DMR standard protocol, a channel access time slot is defined; the priority channel using right of the voice and data services is achieved through the channel access time slot.
Description
Technical field
The present invention relates to wireless mobile telecommunication technology field, what be specifically related to is a kind of wireless voice and data communication system method that realizes multipriority business.
Background technology
DMR(Digital Mobile Radio) be the professional mobile radio system standard of the etsi standardization tissue proposition of European Union, this standard has comprised Tier I, Tier II and tri-kinds of mode of operations of Tier III, wherein: Tier I refers to network-off direct-passing communication pattern; Tier II refers to transfer communication pattern; Tier III refers to trunking communication pattern.
In actual applications, network-off direct-passing and transfer communication are the most frequently used communication patterns, DMR air interface adopts the TDMA technical system of 2 time slots, although when terminal works is during in a certain time slot, can realize by the backward channel (RC) of another one time slot the priority of different business; But, for 2 channel TDMA technical systems, when 2 channels cannot utilize backward channel to realize the priority selection of business during simultaneously in " hurry " state.
Summary of the invention
The technical problem to be solved in the present invention is for the implementation method of the voice service of each channel and the multipriority of data service in DMR technical standard, thereby a kind of wireless voice and data communication system and method that realizes multipriority business proposed, the method takes full advantage of the multipriority feature that superframe structure in DMR is realized speech and data service, thereby can meet better the demand of professional client to service priority, make DMR technical standard can be applicable to more application scenario.
The present invention is achieved by the following technical solutions: wireless voice and data communication system and the method that can realize multipriority business, utilize the superframe structure of DMR air interface, every the time of 1 or 2 superframe, just reserve a period of time to the use of terminal access; Each superframe time that arbitrarily " stealing " frame burst accesses as other-end, and this time slot is defined as to " channel access time slot ".
A described superframe is 360ms, and it is containing frame synchronization burst A, containing embedded signaling and channel access time slot burst B, containing embedded signaling burst C, containing embedded signaling burst D, containing embedded signaling burst E, containing backward channel signaling burst F that the aerial burst structure of DMR when it exists channel access time slot comprises; The described regulation transmission beared information that removes in burst B position, outside the normal embedded signaling sending, all the other times are closed transmitting, thereby make channel in idle condition, like this, other-end is about to the service priority of initiating and just can initiates channel access request when low when finding that the priority ratio of ongoing business is local.
The bit definitions of channel access time slot during described data service is channel access request time (70bits)-Transmit enable time (26bits)-time slot type (10 bits)-embedded signaling (48bits)-time slot type (10bits)-Transmit enable time (26bits)-channel access response time (72 bits).
The bit definitions of channel access time slot during described voice service is channel access request time (72bits)-Transmit enable time (36bits)-embedded signaling (48bits)-Transmit enable time (36bits)-channel access response time (72bits).
The implementation method of service priority is, because of in DMR air protocol, the service priority that embedded signaling comprises has 3 grades, and wherein priority 3 has the highest priority; When in channel, ongoing service priority is 1, the time interval that the terminal of priority 2 is initiated channel access request is the time of 2 superframes, that is, even if all the available free time, for channel access, still still sends 1 access request every 2 superframe times to the burst point of each superframe; The time interval that the terminal of priority 3 is initiated channel access request is 1 superframe time,, as long as not yet access channel, just sends 1 secondary channel access request so every the time of 1 superframe that is; When in channel, ongoing service priority is 2, the time interval that the terminal of priority 3 initiation channel connects access request is 1 superframe time; So on the one hand, when user is easy, prevent that too much user from initiating channel access request and causing channel block at synchronization when more, on the other hand, the method has also embodied the preferential concept of business on the time interval at channel access.
Beneficial effect of the present invention embodies and is: 1, based on existing DMR standard agreement, defined channel access time slot; 2, by utilizing channel access time slot to realize the priority channel right to use of speech and data service.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be described in detail.
Fig. 1 is the DMR aerial burst structure of the present invention while there is channel access time slot.
Fig. 2 is the definition of channel access time slot bit during data service in the present invention.
Fig. 3 is the definition of channel access time slot bit during voice service in the present invention.
Fig. 4 is that in the present invention, the not terminal in communication state during channel busy is initiated channel access process flow diagram.
Fig. 5 is the terminal signaling process chart initiatively making a call in the present invention.
Fig. 6 is chnnel coding and the interleaving mode that in the present invention, channel access request and channel access are replied.
Embodiment
As shown in Figure 2 to Figure 3, from the definition of channel access time slot, first other-end initiates channel access request in gap at this moment, and the terminal of then communicating by letter can transmitting channel access response message, for confirmationly whether accepts this channel access request; When voice service is transmitted by superframe structure, if remove the speech information (speech information of 60ms) of a time slot every the superframe time of 360ms, simultaneously on receiving terminal is used, the speech information of a 60ms is used as this time slot speech information and delivers to loudspeaker and play, and now voice quality impacts is very little; Therefore, to realize the channel access function of other-end be feasible to the method by " steal frame ".
As shown in Figure 4, on channel, carrying out business when transmission, the operation flow for not participating in the other-end of this communication.
As shown in Figure 5, for the terminal in communications status, when receiving the channel access request of other-end initiation in channel access time slot, the precedence information comprising in the request of judgement channel access, if be greater than local ongoing service priority, the channel access response message of send confirming is to requesting party, and stops immediately this communication process at next time slot.
As shown in Fig. 2, Fig. 3 and Fig. 6, channel access request and channel access response message are 72bits, wherein: that channel access request comprises is requesting party's ID(24bits) and service priority information (2bits); That channel access response packet contains is the ID(24bits of answer party) and response content (2bits).
Terminal in the inventive method is when realizing service priority function, need the Transmit enable speed of hardware enough fast, just in the terminal of communication in process of transmitting, need to realize receiving function at channel access time slot, in identical time slot, send embedded signaling information and channel access response message simultaneously.Therefore, require hardware can support transmitting-receiving speed enough fast, should within the time interval of 2.5ms, realize Transmit enable.
Claims (2)
1. wireless voice and the data communication system that can realize multipriority business, is characterized in that: utilize the superframe structure of DMR air interface, every the time of 1 or 2 superframe, just reserve a period of time to the use of terminal access; Each superframe time that arbitrarily " stealing " frame happens suddenly and connects as other-end, and this time slot is defined as to " channel access time slot "; The bit definitions of channel access time slot during data service is the embedded signaling 48bits-time slot of channel access request time 70bits-Transmit enable time 26bits-time slot Class1 0 bits-Class1 0bits-Transmit enable time 26bits-channel access response time 72 bits; The bit definitions of channel access time slot during described voice service is the embedded signaling 48bits-Transmit enable of channel access request time 72bits-Transmit enable time 36bits-time 36bits-channel access response time 72bits.
2. the wireless voice of multipriority business and the implementation method of data communication system of realizing according to claim 1, is characterized in that: the service priority that embedded signaling comprises has 3 grades, and wherein priority 3 has the highest priority; When in channel, ongoing service priority is 1, the time interval that the terminal of priority 2 is initiated channel access request is the time of 2 superframes, that is, even if all the available free time, for channel access, still still sends 1 access request every 2 superframe times to the burst point of each superframe; The time interval that the terminal of priority 3 is initiated channel access request is 1 superframe time,, as long as not yet access channel, just sends 1 secondary channel access request so every the time of 1 superframe that is; When in channel, ongoing service priority is 2, the time interval that the terminal of priority 3 initiation channel connects access request is 1 superframe time.
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| CN201210267975.1A CN103582032B (en) | 2012-07-31 | 2012-07-31 | A kind of realize the wireless voice of multiple priority levels business and the method for data corresponding |
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| CN201210267975.1A CN103582032B (en) | 2012-07-31 | 2012-07-31 | A kind of realize the wireless voice of multiple priority levels business and the method for data corresponding |
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| CN103582032B CN103582032B (en) | 2016-06-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018112887A1 (en) * | 2016-12-23 | 2018-06-28 | 海能达通信股份有限公司 | Reverse signaling transmission method and apparatus of private network system, and communication device |
| CN111212452A (en) * | 2020-01-13 | 2020-05-29 | 海能达通信股份有限公司 | Handover method, communication system, terminal and storage device for voice communication |
| CN111314867A (en) * | 2019-05-13 | 2020-06-19 | 展讯通信（上海）有限公司 | Voice transmission and receiving method and device of DMR system, storage medium and terminal |
| CN112995933A (en) * | 2021-04-27 | 2021-06-18 | 广州慧睿思通科技股份有限公司 | Interphone, communication method thereof, electronic equipment and storage medium |
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| CN101909328A (en) * | 2010-08-19 | 2010-12-08 | 优能通信科技（杭州）有限公司 | Method for realizing wireless access of DMR (Digital Mobile Radio) digital-trunked grouped data |
| CN101931500A (en) * | 2010-08-19 | 2010-12-29 | 优能通信科技（杭州）有限公司 | Method for transmitting backward control signaling by using control channel in DMR system |
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| US20080175158A1 (en) * | 2007-01-21 | 2008-07-24 | Motorola, Inc. | Method and device for selectively transmitting voice bursts and regenerated header bursts |
| CN101647213A (en) * | 2007-02-02 | 2010-02-10 | 摩托罗拉公司 | System and method for processing data and control messages in a communication system |
| CN101909328A (en) * | 2010-08-19 | 2010-12-08 | 优能通信科技（杭州）有限公司 | Method for realizing wireless access of DMR (Digital Mobile Radio) digital-trunked grouped data |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018112887A1 (en) * | 2016-12-23 | 2018-06-28 | 海能达通信股份有限公司 | Reverse signaling transmission method and apparatus of private network system, and communication device |
| CN111314867A (en) * | 2019-05-13 | 2020-06-19 | 展讯通信（上海）有限公司 | Voice transmission and receiving method and device of DMR system, storage medium and terminal |
| CN111212452A (en) * | 2020-01-13 | 2020-05-29 | 海能达通信股份有限公司 | Handover method, communication system, terminal and storage device for voice communication |
| CN111212452B (en) * | 2020-01-13 | 2022-05-17 | 海能达通信股份有限公司 | Handover method for voice communication, communication system, terminal and storage medium |
| CN112995933A (en) * | 2021-04-27 | 2021-06-18 | 广州慧睿思通科技股份有限公司 | Interphone, communication method thereof, electronic equipment and storage medium |
| CN112995933B (en) * | 2021-04-27 | 2021-08-17 | 广州慧睿思通科技股份有限公司 | Interphone, communication method thereof, electronic equipment and storage medium |
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| CN103582032B (en) | 2016-06-08 |
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