CN102572723B - Method for transmitting cluster service air interface signaling - Google Patents
Method for transmitting cluster service air interface signaling Download PDFInfo
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- CN102572723B CN102572723B CN201010608167.8A CN201010608167A CN102572723B CN 102572723 B CN102572723 B CN 102572723B CN 201010608167 A CN201010608167 A CN 201010608167A CN 102572723 B CN102572723 B CN 102572723B
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Abstract
The invention provides a method for transmitting a cluster service air interface signaling, which comprises the step: a signaling sending end transmits the current cluster service air interface signaling to a signaling receiving end through a radio resource control (RRC) message according to a preset transmission rule by using a public channel, wherein the transmission rule comprises the procedures of: when the air interface signaling comprises an access layer signaling, only transmitting a physical layer signaling for the access layer signaling; and when the air interface signaling comprises the access layer signaling and a non-access layer signaling, transmitting the air interface signaling simultaneously by using one RRC message. By adopting the invention, the air interface signaling time delay in a cluster service communication process can be effectively reduced.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to the transmission method of cluster service air interface signaling.
Background technology
Trunked communication system belongs to dedicated mobile communications subsystem, it can be widely used in all trades and professions such as traffic, electric power, oil, government bodies, public security, army, water conservancy, as the effective means of production scheduling, commander's control, emergency communication, bring into play extremely important effect for increasing work efficiency, accelerate response speed, and obtaining considerable economic benefit.The Ministry of Information Industry of China has issued " Digital Clustering mobile communication technology system " recommended industry standard in 2000, in this standard recommendation TETRA and two kinds of wireless standards in arrowband of iDEN.But along with the development of the new technology such as WCDMA/TD-SCDMA/CDMA-EVDO/LTE/SAE/WiMAX in recent years, research and propose an urgent demand for the group system based on mobile broadband technology.
Push to talk communication (Push To Talk, PTT) technology is one of core application of trunked communication system, its processing delay for system has proposed higher requirement, for example, the initial setup delay of group service requires to be less than 500 milliseconds, the right to apply for words delay requirement and is less than 300ms, robs power delay requirement and be less than 300ms.
In the space interface signaling transmission plan of existing system of broadband wireless communication towards the public, in the time of transmission space interface signaling, need to first set up dedicated channel, then in dedicated channel, transmit space interface signaling.Particularly, comprise physical layer signaling, data link layer signaling and Network Layer Signaling for Access Layer signaling, utilize Radio Resource control (RRC) message to transmit, and call out the signalings such as control, mobile management for Non-Access Stratum signaling, utilize non-access (NAS) layer message to transmit.Because the public network service time delay that adopts technique scheme to carry out is larger, cannot meet the high requirement of PTT business to time delay, therefore, above-mentioned existing space interface signaling transmission plan cannot be applied directly in the PTT business of system of broadband wireless communication.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of transmission method of cluster service air interface signaling, and the method can effectively reduce the space interface signaling time delay of PTT communication process.
In order to achieve the above object, the technical scheme that the present invention proposes is: a kind of transmission method of cluster service air interface signaling, and the method comprises the following steps:
Signaling transmitting terminal utilizes common signal channel, according to default transmission principle, by Radio Resource control (RRC) message, current cluster service air interface signaling is transferred to signaling receiving terminal, and wherein, described transmission principle comprises:
In the time that described space interface signaling comprises Access Layer signaling, for this Access Layer signaling, only transmission physical layer configurations information wherein;
In the time that described space interface signaling comprises Access Layer signaling and Non-Access Stratum signaling, utilize a RRC message to transmit described space interface signaling simultaneously.
In sum, the transmission method of the cluster service air interface signaling that the present invention proposes, by reducing the transferring content of space interface signaling, the number of transmissions and directly utilize common signal channel to carry these space interface signalings, can effectively reduce the space interface signaling propagation delay time of group service.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, the present invention is described in further detail.
Core concept of the present invention is: first, consider that in the data of transmitting in existing RRC message, having some is relatively static (as non-physical layer configurations information), do not need to transmit continually, therefore, the amount of information that can carry by minimizing RRC message reduces time delay; Second, RRC message and NAS layer message can be merged to transmission, that is, in a piece of news, transmit above-mentioned two information, to reduce RRC message and NAS layer message at the mutual number of times of eating dishes without rice or wine simultaneously, the 3rd, the directly space interface signaling of bearing cluster service on common signal channel, instead of in dedicated channel, like this, can avoid setting up the shared time delay of dedicated channel, utilize above-mentioned 3 space interface signaling propagation delay times that can significantly reduce group service.
The embodiment of the present invention one mainly comprises: signaling transmitting terminal utilizes common signal channel, according to default transmission principle, by Radio Resource control (RRC) message, current cluster service air interface signaling is transferred to signaling receiving terminal.
Particularly, described transmission principle comprises:
In the time that described space interface signaling comprises Access Layer signaling, for this Access Layer signaling, only transmission physical layer configurations information wherein, the relevant parameter that the configuration parameter in other non-physical layer signalings utilizes the localized configuration information of systemic presupposition to preserve self by described signaling receiving terminal is configured.
In the time that described space interface signaling comprises Access Layer signaling and Non-Access Stratum signaling, utilize a RRC message to transmit described space interface signaling simultaneously.
Here, in the time that needs send space interface signaling simultaneously and comprise Access Layer signaling and Non-Access Stratum signaling, adopt the incidentally mechanism of NAS layer message of RRC message, by Access Layer signaling and Non-Access Stratum signaling are carried out to merging group bag, only utilize a RRC message to transmit, can reduce RRC and NAS message in the interaction times of eating dishes without rice or wine, shorten the time delay of eating dishes without rice or wine.In addition, in the time of transmission Access Layer signaling, only transmit the signaling (being physical layer configurations information) of relative dynamic, and the relatively static non-physical layer configurations information (being data link layer and network layer configuration information) of transmission no longer, the content of signalling is reduced, thereby accelerate the transmission of RRC message, reduce propagation delay time.
In the time of specific implementation, for uplink and downlink space interface signaling, can adopt respectively following two kinds of message:
1) the up signalling message of PTT (PTT Uplink Signalling Transfer), this message is that terminal is used for sending PTT service request and transmitting the NAS layer message of PTT to network.While sending this message, the transmission mode of employing is transparent mode, and the logic channel of employing is CCCH.This message portability type of message, group's group number and group's physical layer configurations information, go back portability Non-Access Stratum signaling, specifically as shown in table 1:
| Cell/group name | Need type | Type of message and quoting |
| Type of message | Essential | Type of message |
| End message cell | ||
| > PTT initial terminal identifier | Essential | PTT initial user identifier |
| > PTT cluster multi call type | Essential | Voice, video, other |
| Core network information cell |
| > PTT cluster NAS message | Optional | Non-access layer information |
Table 1
2) PTT downstream signal message transfer (PTT Downlink Signalling Transfer), this message is that network is used for sending PTT traffic channel configuration and transmitting the NAS layer message of PTT to sector terminal.While sending this message, the transmission mode of employing is Unacknowledged Mode, and the logic channel of employing is CCCH or DCCH.This message portability message type information, PTT initial terminal identifier information and PTT cluster multi call type information, go back portability PTT cluster Non-Access Stratum signaling, specifically as shown in table 2:
Table 2
Utilize above-mentioned message realization in the group service of system of broadband wireless communication user to apply for the detailed process of right of speech in order further to set forth specific implementation of the present invention, to provide below, this process comprises the following steps:
Step 101, terminal send NAS layer the right to apply for words message to network by PTT Uplink Signalling Transfer message on common uplink channel.
Step 102, trade Special Network are received after the right to apply for words message, give this terminal, and set up eating dishes without rice or wine and network side resource of group according to group service configuration distribution right of speech.
Step 103, trade Special Network send PTT Downlink Signalling Transfer message to terminal, and wherein, group's interface-free resources of distribution configures to user in network layer message, and the right of speech of group service is authorized to specify and brought terminal by NAS layer message.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a transmission method for cluster service air interface signaling, is characterized in that, the method comprises the following steps:
Signaling transmitting terminal utilizes common signal channel, according to default transmission principle, by Radio Resource control (RRC) message, current cluster service air interface signaling is transferred to signaling receiving terminal, and wherein, described transmission principle comprises:
In the time that described space interface signaling comprises Access Layer signaling, for this Access Layer signaling, only transmission physical layer configurations information wherein;
In the time that described space interface signaling comprises Access Layer signaling and Non-Access Stratum signaling, utilize a RRC message to transmit described space interface signaling simultaneously;
Wherein, when described signaling transmitting terminal is network side, when described signaling receiving terminal is user equipment side, described RRC message is PTT downlink signaling message transfer; Described PTT downlink signaling message transfer comprises: message type information, group's group number information and group's physical layer configurations information;
When described signaling transmitting terminal is user equipment side, when described signaling receiving terminal is network side, described RRC message is the up signalling message of PTT; The up signalling message of described PTT at least comprises: message type information, PTT initial terminal identifier information and PTT cluster multi call type information.
2. method according to claim 1, is characterized in that, described group service is PTT news (PTT) business.
3. method according to claim 1, is characterized in that, when described signaling transmitting terminal is network side, when described signaling receiving terminal is user equipment side, described PTT downlink signaling message transfer further comprises: Non-Access Stratum signaling.
4. method according to claim 1, is characterized in that, when described signaling transmitting terminal is user equipment side, when described signaling receiving terminal is network side, the up signalling message of described PTT further comprises: PTT cluster Non-Access Stratum signaling.
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| CN103687043B (en) * | 2012-09-11 | 2016-12-21 | 普天信息技术研究院有限公司 | A kind of method setting up radio resource control connection |
| CN104010278B (en) * | 2013-02-27 | 2018-12-04 | 深圳市中兴微电子技术有限公司 | TD-SCDMA group system group-calling set-up method and system |
| CN112954610B (en) * | 2019-11-22 | 2022-07-26 | 成都鼎桥通信技术有限公司 | Group signaling transmission method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438656C (en) * | 2006-05-10 | 2008-11-26 | 华为技术有限公司 | System and method for realizing group service |
| CN101340214A (en) * | 2007-07-06 | 2009-01-07 | 鼎桥通信技术有限公司 | Method and system for downlink space interface signaling transmission |
| CN101137105B (en) * | 2006-08-29 | 2010-05-12 | 华为技术有限公司 | Method and system to control push-to-talk service |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438656C (en) * | 2006-05-10 | 2008-11-26 | 华为技术有限公司 | System and method for realizing group service |
| CN101137105B (en) * | 2006-08-29 | 2010-05-12 | 华为技术有限公司 | Method and system to control push-to-talk service |
| CN101340214A (en) * | 2007-07-06 | 2009-01-07 | 鼎桥通信技术有限公司 | Method and system for downlink space interface signaling transmission |
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