CN105792372A

CN105792372A - Data communication method, device and system

Info

Publication number: CN105792372A
Application number: CN201610122393.2A
Authority: CN
Inventors: 徐燕; 罗正华; 黄成富
Original assignee: Hytera Communications Corp Ltd
Current assignee: Hytera Communications Corp Ltd
Priority date: 2016-03-02
Filing date: 2016-03-02
Publication date: 2016-07-20
Anticipated expiration: 2036-03-02
Also published as: CN105792372B

Abstract

The embodiment of the invention discloses a data communication method. The method comprises following steps of determining an idle channel by a first terminal; sending a data handshake request carrying with interruption information on the idle channel, wherein the interruption information at least comprises an instruction of interrupting the call of a service channel; receiving a data handshake response sent by a relay station; skipping to the service channel appointed by the relay station according to the skip channel instruction contained in the data handshake response when the type of the data handshake response is the data handshake response of allowing interruption; initiating the call on the service channel when it is determined that a second terminal which occupies the service channel to carry out the call interrupts the call, and the resource of the service channel is released. According to the embodiment of the invention, the call of the sending terminal can be interrupted, the channel resource can be released, and the method, the device and the system are high in flexibility and efficiency.

Description

A kind of method of data communication, Apparatus and system

Technical field

The present embodiments relate to communication technical field, be specifically related to a kind of method of data communication, Apparatus and system.

Background technology

Expanded type Virtual Cluster (English full name is ExtendedPseudoTrunk, and English abbreviation is XPT) system is a kind of distributed cluster system without control centre.One XPT system can be made up of multiple websites, has some intermediate stations to provide and share channel under each website, and described some intermediate stations include a fixing main intermediate station and multiple from intermediate station.XPT system can extend power system capacity to greatest extent under the premise not increasing extra cost, effectively utilizes existing channel resource, it is possible to fully meet the demand of low and middle-end cluster client.XPT system does not need special control channel, and this scheme can meet U.S.'s FB6 allocation, and the distribution of its frequency can be shared with other system, for instance different user can distribute same frequency.Therefore, XPT system is used widely because of the advantage that its cost is low, channel resource utilization rate is high.

In prior art, there is the busy channel always of the people in same call, cause that the situation of callback is initiated in the calling that the terminal received cannot interrupt transmitting terminal.Additionally, in the whole occupied situation of channel resource, the user of high priority thinks that initiation is generally called or promptly exhaled also cannot interrupt channel resource initiation calling.Accordingly, it would be desirable to a kind of method sending the calling of terminal of can interrupting is to meet the demand of user.

In existing centralized group system, special control channel and control centre manage each terminal.Controlling channel at ordinary times and keep long emission state, all terminals are all waited on a control channel.When channel all of in system is occupied, control centre can discharge channel resource by issuing RC instruction to the terminal specified.But, this method needs to be managed terminal by special control centre and control channel, by control centre when channel resource is fully occupied, issue RC instruction release channel resource, be not particularly suited for not having the distributed cluster system of control centre to receive terminal aborts and send the calling of terminal.Therefore, without in the distributed cluster system of control centre, how utilizing current system resource to realize the calling interrupting sending terminal becomes a problem merited attention to reduce channel resource waste.

Summary of the invention

Embodiments provide a kind of method of data communication, Apparatus and system, it is possible to interrupting sending the calling of terminal, discharge channel resource, motility is strong, efficiency is high.

First aspect, a kind of method embodiments providing data communication, it is applied to first terminal, described method includes:

Determine idle channel, described idle channel sends the data handshakes request carrying interrupting information；Described interrupting information at least includes the instruction of the calling of interrupting service channel；

Receive the data handshakes response that intermediate station sends；

When the type that described data handshakes responds be allow interrupt data handshakes response time, according to described data handshakes respond packet containing redirect channel instruction jump to the Traffic Channel that described intermediate station is specified；

When the resource determined the second terminal aborts calling taking described Traffic Channel and carrying out calling, discharge described Traffic Channel, described Traffic Channel is initiated calling.

Second aspect, a kind of method embodiments providing data communication, it is applied to intermediate station, described method includes:

What detection first terminal sent carries the data handshakes request of interrupting information；Described interrupting information at least includes the instruction of the calling of interrupting service channel；

The Traffic Channel of interrupt call is determined in the instruction of the calling according to described interrupting service channel；

Sending data handshakes response to described first terminal, the response of described data handshakes includes data handshakes respond style and redirects channel instruction；The described channel that redirects indicates for indicating described first terminal to jump to the Traffic Channel that described intermediate station is specified, with described, the described Traffic Channel specified determines that the Traffic Channel of interrupt call is identical；

The adjacent channel of the Traffic Channel of disconnected calling embeds interrupt call instruction in the determination, for the resource indicating the second terminal aborts calling rested in the described Traffic Channel determining interrupt call, discharging described Traffic Channel.

The third aspect, embodiments provides the device of a kind of data communication, and described device includes:

Transmitting element, is used for determining idle channel, sends the data handshakes request carrying interrupting information on described idle channel；Described interrupting information at least includes the instruction of the calling of interrupting service channel；

Receive unit, for receiving the data handshakes response that intermediate station sends；

Jump-transfer unit, for when the type that described data handshakes responds be allow interrupt data handshakes response time, according to described data handshakes respond packet containing redirect channel instruction jump to the Traffic Channel that described intermediate station is specified；

Calling unit, is used for, when the resource determined the second terminal aborts calling taking described Traffic Channel and carrying out calling, discharge described Traffic Channel, initiating calling in described Traffic Channel.

Fourth aspect, embodiments provides the device of a kind of data communication, and described device includes:

Detection unit, for detecting the data handshakes request carrying interrupting information that first terminal sends；Described interrupting information at least includes the instruction of the calling of interrupting service channel；

Determining unit, the Traffic Channel of interrupt call is determined in the instruction being used for the calling according to described interrupting service channel；

First transmitting element, for sending data handshakes response to described first terminal, the response of described data handshakes includes data handshakes respond style and redirects channel instruction；The described channel that redirects indicates for indicating described first terminal to jump to the Traffic Channel that described intermediate station is specified, with described, the described Traffic Channel specified determines that the Traffic Channel of interrupt call is identical；

Second transmitting element, the adjacent channel being used for the Traffic Channel of disconnected calling in the determination embeds interrupt call instruction, is used for described in indicating to rest on the second terminal aborts calling of the described Traffic Channel determining interrupt call, discharges the resource of described Traffic Channel.

5th aspect, embodiments provide a kind of device for data communication, include memorizer, and one or more than one program, one of them or more than one program are stored in memorizer, and are configured to be performed one or more than one program package containing the instruction for carrying out following operation by one or more than one processor:

Receive the data handshakes response that intermediate station sends；

6th aspect, embodiments provide a kind of device for data communication, include memorizer, and one or more than one program, one of them or more than one program are stored in memorizer, and are configured to be performed one or more than one program package containing the instruction for carrying out following operation by one or more than one processor:

The adjacent channel of the Traffic Channel of disconnected calling embeds interrupt call instruction in the determination, is used for described in indicating to rest on the second terminal aborts calling of the described Traffic Channel determining interrupt call, discharges the resource of described Traffic Channel.

7th aspect, embodiments provides a kind of system for data communication, including first terminal, intermediate station, the second terminal, wherein:

Described first terminal is used for: determine idle channel, sends the data handshakes request carrying interrupting information on described idle channel；Described interrupting information at least includes the instruction of the calling of interrupting service channel；Receive the data handshakes response that intermediate station sends；When the type that described data handshakes responds be allow interrupt data handshakes response time, according to described data handshakes respond packet containing redirect channel instruction jump to the Traffic Channel that described intermediate station is specified；When the resource determined the second terminal aborts calling taking described Traffic Channel and carrying out calling, discharge described Traffic Channel, described Traffic Channel is initiated calling；

Described intermediate station is used for: what detection first terminal sent carries the data handshakes request of interrupting information；Described interrupting information at least includes the instruction of the calling of interrupting service channel；The Traffic Channel of interrupt call is determined in the instruction of the calling according to described interrupting service channel；Sending data handshakes response to described first terminal, the response of described data handshakes includes data handshakes respond style and redirects channel instruction；The described channel that redirects indicates for indicating described first terminal to jump to the Traffic Channel that described intermediate station is specified, with described, the described Traffic Channel specified determines that the Traffic Channel of interrupt call is identical；The adjacent channel of the Traffic Channel of disconnected calling embeds interrupt call instruction in the determination, is used for described in indicating to rest on the second terminal aborts calling of the described Traffic Channel determining interrupt call, discharges the resource of described Traffic Channel；

Described second terminal is used for: when when initiating the adjacent channel of Traffic Channel of calling and detecting that described interrupt call indicates, sending voice end frame with interrupt call, the resource discharging described Traffic Channel.

The method of data communication of embodiment of the present invention offer, Apparatus and system, the handshake request of interrupting information can be comprised in the initiation of intrasystem idle channel by terminal, interrupted carrying out the terminal of call business, discharging corresponding channel resource by intermediate station, and indicate the terminal initiating handshake request to be switched to the channel of interruption to initiate calling.Scheme provided by the invention can be initiated interrupt requests by terminal, it is achieved flexibly, effectively reduces channel resource waste.Additionally, interrupt requests and handshake request are combined, save empty overhead, and decrease Call Collision.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

One application scenarios schematic diagram of the method for the data communication that Fig. 1 provides for the embodiment of the present invention；

The method flow diagram of the data communication that Fig. 2 provides for one embodiment of the invention；

Fig. 3 is data handshakes request (HandshakeRequest) Frame Protocol data cell PDU form schematic diagram carrying interrupting information；

Fig. 4 is data handshakes response (HandshakeResponse) PDU form schematic diagram；

The method flow diagram of the data communication that Fig. 5 provides for the embodiment of the present invention；

Fig. 6 is the schematic diagram embedding RC signaling in a data frame；

Fig. 7 is the schematic diagram embedding RC signaling in speech frame；

Fig. 8 is intermediate station is interrupt terminal to keep the method schematic diagram of channel；

The method flow diagram of the data communication that Fig. 9 provides for further embodiment of this invention；

The method schematic diagram of the data communication that Figure 10 provides for further embodiment of this invention；

The method schematic diagram of the data communication that Figure 11 further embodiment of this invention provides；

The method schematic diagram of the data communication that Figure 12 provides for further embodiment of this invention；

The device schematic diagram of the data communication that Figure 13 provides for one embodiment of the invention；

The device schematic diagram of the data communication that Figure 14 provides for another embodiment of the present invention；

The device schematic diagram of the data communication that Figure 15 provides for yet another embodiment of the invention；

The device schematic diagram of the data communication that Figure 16 provides for further embodiment of this invention；

The system schematic of the data communication that Figure 17 provides for further embodiment of this invention.

Detailed description of the invention

Embodiments provide a kind of method of data communication, Apparatus and system can interrupt send terminal calling, discharge channel resource, motility is strong, efficiency is high.

In order to make those skilled in the art be more fully understood that the technical scheme in the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, all should belong to the scope of protection of the invention.

The method of the data communication that the embodiment of the present invention provides can apply to without in the distributed cluster system system of control centre, for instance XPT system.Referring to Fig. 1, an application scenarios schematic diagram of the method for the data communication provided for the embodiment of the present invention.Below in conjunction with Fig. 1 to Figure 12, the method for above-mentioned data communication is illustrated.As it is shown in figure 1, have 3 channels in two carrier frequency XPT systems: site channel 1 (BSCH1), site channel 2 (BSCH2), site channel 3 (BSCH3) are occupied, only site channel 4 (BSCH4 is idle).Wherein, BSCH1 and BSCH2 is the different time-gap of the first carrier frequency；BSCH3 and BSCH4 is the different time-gap of the second carrier frequency.Wherein, BSCH1 is taken by terminal A calling terminal E (ACallE)；BSCH2 is exhaled group 1 (CCallG1) to take by terminal C group；BSCH3 is exhaled group 2 (DCallG2) to take by terminal D group.Wherein, Hdr represents voice head, and VA, VB, VC, VD, VE, VF represent voice A, voice B, voice C, voice D, voice E, voice F.Term is voice end frame.Terminal B (MSB) is the group member of G1, is receiving the terminal C group initiated and is exhaling, it is assumed that terminal B is first terminal, wants the calling interrupting terminal C, in order to terminal B initiates the group of G1 and exhales, in order to the member including the G1 of C hears the calling of oneself.For this application scenarios, the method for the present invention will be illustrated below.

Referring to Fig. 2, for the method flow diagram of the data communication that one embodiment of the invention provides, it is applied to terminal, it is shown that method such as may include that

S201, it is determined that idle channel, sends the data handshakes request carrying interrupting information on described idle channel；Described interrupting information at least includes the instruction of the calling of interrupting service channel.

Without in the distributed type assemblies communication system of control centre, if intrasystem first terminal needs the calling interrupting sending terminal, make to send the traffic channel resource of terminal release busy, so that the traffic channel resource that first terminal can utilize release initiates calling, then may determine that idle channel, described idle channel sends the data handshakes request carrying interrupting information.Illustrate, if intrasystem first terminal is receiving the calling of the second terminal, if launch terminal i.e. the second long-time busy channel of terminal, if the first terminal receiving calling wants the speech interrupting launch terminal, the channel interrupted is initiated calling, then any one idle channel in system can be used to send the data handshakes request carrying interrupting information.And for example, when channel resource is all occupied, if there being terminal to want to initiate to report to the police, then the data handshakes request that intrasystem idle channel initiates to comprise interrupting information can be utilized to interrupt sending the calling of terminal.

In some embodiments, it is determined that the mode of idle channel may is that and default dedicated interrupt channel is defined as idle channel.When implementing, writing the reserved dedicated logical channel of frequency configuration as interrupting using, the dedicated interrupt channel namely preset is used for interrupting using, it is impossible to use as Traffic Channel.In this implementation, terminal initiate carry interrupting information data handshakes request can only jump to dedicated logical channel go send, and wait after receiving data handshakes response, then the Traffic Channel jumping to interrupt call waits that channel release re-uses described Traffic Channel and initiates calling.Owing to having reserved a special logic channel as dedicated interrupt channel, therefore terminal aborts sends having higher success rate of the calling of terminal, highly reliable, and efficiency is high.It should be noted that for different carrier frequency, only a logic channel need to be reserved, it is not necessary to all reserved logic channel of each carrier frequency.Relative to all reserved logic channel resource of each carrier frequency for the mode of interrupt call, save channel resource.Additionally, embodiments of the present invention can support the interrupt call between same carrier frequency terminal, it is also possible to support the interrupt call between carrier frequency terminal.

In other embodiment, intrasystem any idle channel all can as interrupting using.This mode is applicable not only to the interrupt call of the interior terminal in single station, it is also possible to suitable in the interrupt call of multistation terminal.Especially, in the call interruption of station, this mode can also improve system business channel utilization rate and reduce system bandwidth requirement.

In a kind of possible implementation, it is determined that idle channel may include that when determining that receiving same station calls, and the same frequency idle channel receiving the Traffic Channel of calling is defined as idle channel.

In alternatively possible implementation, it is determined that idle channel may include that the idle channel by the free intermediate station of system broadcasts is defined as idle channel.

In alternatively possible implementation, it is determined that idle channel may include that when determine receive across station calling time, the described channel across station calling will be received and be defined as idle channel.

Illustrating, if writing frequency to preset dedicated interrupt channel, enabling the terminal of interrupt call function needs to jump to the special channel that interrupts and initiates to carry the data handshakes request of interrupting information.This mode is relatively reliable.

Illustrating, if writing frequency not configure dedicated interrupt channel, the terminal enabling interrupt call function selects the idle channel in station to go to initiate to carry the data handshakes request of interrupting information.This mode is more flexible relative to the mode writing the default dedicated interrupt channel of frequency.When determining intrasystem idle channel, terminal can prioritizing selection receive calling same frequency idle channel (another free timeslot) send carry interrupting information data handshakes request, improve interrupt call system access performance.If another time slot that terminal is receiving calling is also busy, terminal is switched to the free timeslot of the free intermediate station of system broadcasts and sends the data handshakes request carrying interrupting information.

It should be noted that the embodiment of the present invention can also be supported across station interrupt call.Illustrating, terminal receives, at stop website, the audio call that other website sends, it is possible to directly initiates callback at the channel stopping website reception calling and interrupts.When implementing, it is possible to increasing by 1 bit in the embedded speech link control frame LC eated dishes without rice or wine for identifying is across station calling.It is across station calling when terminal parses, initiates when station callback is interrupted, owing to channel uplink is idle, directly can initiate to carry asking across station data handshakes of interrupting information at the channel receiving calling.

After determining idle channel, namely first terminal can send the data handshakes request carrying interrupting information on described idle channel.Wherein, described interrupting information at least includes the instruction of the calling of interrupting service channel.

As it is shown on figure 3, the data handshakes for carrying interrupting information asks (HandshakeRequest) Frame Protocol data cell (English full name is ProtocolDataUnit, and English abbreviation is PDU) form schematic diagram.As shown in Figure 4, (HandshakeResponse) PDU form schematic diagram is responded for data handshakes.

Referring to table 1, ask the PDU information unit definition table of summed data handshake response for data handshakes.

Table 1 data handshakes information content describes

Wherein, free intermediate station FreeRepeater: system selects an intermediate station including free timeslot as free intermediate station from idle intermediate station list.

S202, receives the data handshakes response that intermediate station sends.

Referring to Fig. 4, for the data handshakes response pdus form schematic diagram that intermediate station sends.

S203, when the type that described data handshakes responds be allow interrupt data handshakes response time, according to described data handshakes respond packet containing redirect channel instruction jump to the Traffic Channel that described intermediate station is specified.

S204, when the resource determined the second terminal aborts calling taking described Traffic Channel and carrying out calling, discharge described Traffic Channel, initiates calling in described Traffic Channel.

Wherein, described determine take the second terminal aborts calling that described Traffic Channel carries out calling, the resource that discharges described Traffic Channel includes:

When the voice end frame that the second terminal sends being detected in described Traffic Channel, it is determined that take the second terminal aborts calling that described Traffic Channel carries out calling, the resource discharging described Traffic Channel；Wherein, described voice end frame is for showing described second terminal aborts calling, discharging the resource of described Traffic Channel；Or,

When in described Traffic Channel, detect that described intermediate station broadcasts shake hands end frame time, it is determined that take the second terminal aborts calling that described Traffic Channel carries out calling, the resource discharging described Traffic Channel；Described end frame of shaking hands is for showing that described intermediate station keeps Traffic Channel for described first terminal after described second terminal discharges the resource of described Traffic Channel.

Illustrate for Fig. 1.In Fig. 1, Hdr is voice head, and VA, VB, VC, VD, VE, VF represent voice A, voice B, voice C, voice D, voice E, voice F.Term is voice end frame.Handshake_Term is end frame of shaking hands.Handshake_Req is data handshakes request, and Handshake_Rsp is data handshakes response.Terminal B (MSB) CH2 reception group exhale press PTT want initiate callback interrupt time, it need the idle channel CH4 jumping in website or write frequency preset dedicated interrupt channel initiate carry interrupting information data handshakes request.As shown in Figure 1, first downward arrow of MSB represents that terminal B jumps to idle channel 4 from channel 2 and sends the data handshakes request (Handshake_Req), i.e. the MSBJumpFromCH2toCH4andTXHandshake_Req interrupting information that carry interrupting information.As it is shown in figure 1, occurred as soon as MSB on BSCH4 to send Handshake_Req and data handshakes request.As it is shown in figure 1, the arrow that BSCH4 points to BSCH1 represents the instruction sending interruption CH2 calling, embed RC instruction (i.e. TXInterruptCH2Call, EmbedRCinfoonnextslotframe (CH1)) at adjacent time-slots CH1.Then, MSB waits and allows the intermediate station interrupted response to notify that it jumps to the Traffic Channel CH2 carrying out calling.As it is shown in figure 1, after the second of MSB downward arrow represent and handshake response detected, jump to channel CH2 (AfterHandshake_Rspischecked, jumptoTI_CH:2).MSB is by going initiation callback (BcallBackG1) again after the voice Term (having another name called voice end frame, receive this frame and show that channel discharge) of Traffic Channel CH2 or handshake response end frame (HandshakeTerm) being detected.Namely shown in Fig. 1: aftercheckTermonTI_CH:2, begintocallbackG1.Wherein, in figure, RX represents and receives, and TX represents transmission.Wherein, B calls G1, it is therefore an objective to allow the people including C can receive the calling that oneself sends).Wherein, intermediate station is after the data handshakes request carrying interrupting information MSB being detected, and on the adjacent channel CH1 of CH2, short periodicity embedded in RC instruction (EmbedRCperiodeally).

In some embodiments, first terminal is determining idle channel, after described idle channel sends the data handshakes request carrying interrupting information, if receiving the data handshakes response that intermediate station sends, when the type that described data handshakes responds is data handshakes wait-for-response, namely described first terminal waits.Determine when intermediate station take the second terminal aborts calling that described Traffic Channel carries out calling, when discharging the resource of described Traffic Channel, the data handshakes response allowing to interrupt is sent to described first terminal, at this moment, first terminal according to described data handshakes respond packet containing the channel instruction that redirects jump to Traffic Channel that described intermediate station specifies and initiate calling.In this implementation, first terminal is determining idle channel, after sending the data handshakes request carrying interrupting information on described idle channel, when the data handshakes response determining that described intermediate station sends is data handshakes wait-for-response, described first terminal waits on described idle channel；When described first terminal receives the data handshakes response allowing interruption that intermediate station sends, take the second terminal aborts calling that described Traffic Channel carries out calling, the resource discharging described Traffic Channel described in determining, jump to described Traffic Channel and in described Traffic Channel, initiate calling.

In some embodiments, if first terminal initiates calling in described Traffic Channel, described method can also include: when when initiating the adjacent channel of Traffic Channel of calling and detecting that interrupt call indicates, sending voice end frame with interrupt call, the resource discharging described Traffic Channel.The instruction of described interrupt call is specifically as follows backward channel RC instruction.Certainly, the instruction of described interrupt call can also is that other signalings, as long as its resource that can indicate that the second terminal aborts calling rested in the described Traffic Channel determining interrupt call, discharge described Traffic Channel.

In this embodiment, when intrasystem terminal receives calling, if the long-time busy channel of launch terminal, receive terminal and want to interrupt the speech of launch terminal, initiating calling on the channel of interrupt call, any one idle channel in use system is first sent the data handshakes request carrying interrupting information by it, waits the data handshakes response allowing to interrupt, it is switched to the Traffic Channel carrying out calling of intermediate station notice again, by initiating subsequent voice calls again after Traffic Channel release being detected.In this embodiment, it is achieved that utilize current system resource to accomplish the calling of terminal aborts transmission equipment in without the distributed type assemblies communication system of control centre, decrease channel resource waste.Additionally, interrupt requests and handshake request are combined, not only save empty overhead, but also reach interrupt call and reduce the advantage that Call Collision is two-in-one.

Referring to Fig. 5, for the method flow diagram of the data communication that the embodiment of the present invention provides, it is applied to intermediate station, it is shown that method such as may include that

S501, what detection first terminal sent carries the data handshakes request of interrupting information.

Wherein, described interrupting information at least includes the instruction of the calling of interrupting service channel.

When implementing, intermediate station is at any one idle channel or writes dedicated interrupt Channel Detection that frequency presets to the data handshakes claim frame carrying interrupting information, namely described calling handshake request is resolved, for instance instruction and the address information etc. that resolve the calling of kind of shaking hands, interrupting service channel can be included.

S502, determines the Traffic Channel of interrupt call according to the instruction of the calling of described interrupting service channel.

As shown in Figure 3 and Table 1, the instruction (InterruptDesignatedChannel) of the calling of interrupting service channel can be included in data handshakes is asked.If it is determined that when the value in the instruction of the calling of described interrupting service channel is not zero, determine the Traffic Channel of interrupt call according to the value in the instruction of the calling of described interrupting service channel；Value in the instruction of the calling of described interrupting service channel be zero and in asking according to described data handshakes the destination address information carried determine when there is the transfer calling corresponding with described destination address information, the Traffic Channel of described transfer calling correspondence is defined as the Traffic Channel of interrupt call；Value in the instruction of the calling of described interrupting service channel be zero and in asking according to described data handshakes the destination address information carried determine when being absent from the transfer calling corresponding with described destination address information, according to default call priority, Traffic Channel corresponding for calling low for priority is defined as the Traffic Channel of interrupt call.

Illustrating, if the value filled in the instruction of the calling of interrupting service channel is not 0, intermediate station interrupts the channel that terminal is specified.If the value filled in the instruction of the calling of interrupting service channel is 0, by intermediate station determines to interrupt which Traffic Channel.Intermediate station can pass through to resolve whether address information check has same call just in transfer, if it has, intermediate station interrupts just in the same call of transfer.If not same call, be promptly exhale, intermediate station can according to individual exhaling-group exhales-> generally calls-> promptly exhale priority from low to high first to interrupt the calling of low priority in website.

S503, sends data handshakes response to described first terminal, and the response of described data handshakes includes data handshakes respond style and redirects channel instruction.

Wherein, described in redirect channel indicate for indicating described first terminal to jump to the Traffic Channel that described intermediate station is specified, with described, the described Traffic Channel specified determines that the Traffic Channel of interrupt call is identical.

When implementing, while intermediate station in preparation disconnected channel, to first reply terminal data handshake response, fill the channel and data handshake response type that redirect, in order to terminal knows that oneself follow-up calling is initiated in the calling that can interrupt which channel.Meanwhile, intermediate station controls to embed interrupt call instruction in the downlink space interface data of the adjacent channel of interrupting service channel, in order to the terminal of transmitting detects the embedding interrupt call instruction of contiguous time slot, it is possible to stops the calling of transmitting terminal, discharges channel resource.

For convenience of description, example below will be designated as RC signaling for interrupt call to illustrate.Certainly, the instruction of described interrupt call can also be other signalings, for instance self-defining interrupt call signaling.

S504, the adjacent channel of the Traffic Channel of disconnected calling embeds interrupt call instruction in the determination, for the resource indicating the second terminal aborts calling rested in the described Traffic Channel determining interrupt call, discharging described Traffic Channel.

As shown in Figure 1, intermediate station is after idle CH4 detects the data handshakes request carrying interrupting information, while replying terminal data handshake response, control short periodic embedding interrupt call instruction in the middle of the F frame of the voice superframes of downlink space interface broadcast in the adjacent channel CH1 interrupting channel CH2, for instance RC signaling.

In some embodiments, the adjacent channel of the described Traffic Channel of disconnected calling in the determination embeds interrupt call instruction and includes: when determine that the adjacent channel of Traffic Channel of described interrupt call broadcast be Frame (Data) time, the sync pattern of described Frame is replaced with described interrupt call and indicates.Further, the described sync pattern by described Frame replaces with the instruction of described interrupt call particularly as follows: synchronize to embed an interrupt call instruction every one, when the number of times of embedding interrupt call instruction is more than preset times, stops embedding the instruction of described interrupt call.

In some embodiments, the adjacent channel of the described Traffic Channel of disconnected calling in the determination embeds interrupt call instruction and includes: when determine that the adjacent channel of Traffic Channel of described interrupt call broadcast be voice superframes time, the F frame of described voice superframes embeds described interrupt call and indicates.

It is designated as RC instruction for interrupt call to illustrate, intermediate station is in idle channel or default dedicated interrupt Channel Detection to the data handshakes claim frame carrying interrupting information, which Traffic Channel judgement to tear open, if that the adjacent time-slots broadcast of interrupting service channel is Frame (Data), directly the data-frame sync pattern that namely the 1st will forward is replaced with embedding RC signaling, then RC is embedded again every 2 frame data frames, 3rd frame data frame synchronization pattern is replaced with embedding RC signaling, RC signaling is consecutively embedded 3 times, guarantee that the terminal launched can detect RC signaling at adjacent time slot.Wherein, the cycle embedding RC is 120ms.As shown in Figure 6, for embedding the schematic diagram of RC signaling in a data frame.

Illustrate, if the adjacent time-slots broadcast of interrupting service channel is without encryption speech frame (A, B, C, D, E, F), RC is embedded in the F frame position down forwarding voice superframes, 32 bit signallings in the middle of voice F are switched to embedding RC, the F frame of next voice superframes embeds RC again, embedding RC signaling to be consecutively embedded 3 times, double RC gap periods is 360ms.If the adjacent time-slots broadcast of interrupting service channel is encryption speech frame (A, B, C, D, E, F), RC can only be embedded in the F frame position of voice superframes, the superframe (A, B, C, D, E, F) adding confidential information can not embed, therefore the gap periods of the encryption double RC of voice is 720ms.As it is shown in fig. 7, be the schematic diagram embedding RC signaling in speech frame.

In some embodiments, the described data handshakes request that intermediate station receives also includes kind of shaking hands, described method also includes: resolve the request of described data handshakes, when the kind of shaking hands that described data handshakes is asked is the interrupt requests carrying business, keeps Traffic Channel for described first terminal.When implementing, if shaken hands, kind (HandshakeKind) is 1, showing that this interrupts is that the interruption of the business of carrying is shaken hands, terminal also to continue follow-up transmitting business after interrupting channel, and intermediate station needs when not receiving new uplink information to keep channel for interruption side after interrupting channel；If shaken hands, kind is 2, it was shown that this interrupts being remotely control release channel, and terminal only discharges channel, it does not have follow-up business to send, and intermediate station is not necessary for, after interrupting channel, the side of interruption and keeps channel.

In some embodiments, described for described first terminal keep Traffic Channel include: when detect in the Traffic Channel determining interrupt call described second terminal send voice end frame time, controlling described Traffic Channel and switch to, from forwarding service state, maintenance state of shaking hands, intermediate station sends end frame of shaking hands in described Traffic Channel；Wherein, described voice end frame is for showing described second terminal aborts calling, discharging the resource of described Traffic Channel.Described end frame of shaking hands is for showing that described intermediate station keeps Traffic Channel for described first terminal after described second terminal discharges the resource of described Traffic Channel.Illustrating, intermediate station is that first terminal keeps Traffic Channel by sending out the handshake response end frame of a period of time, and this period of time can be 360ms.

Illustrate, as shown in Figure 8, be interrupt terminal to keep the method schematic diagram of channel for intermediate station.Intermediate station is 1 by resolving in handshake request the kind of shaking hands carried, it is judged that is that the interruption of the business of carrying is shaken hands, needs to keep channel for the side of interruption after channel discharges.Intermediate station at the Traffic Channel CH2 of interrupt call after eating dishes without rice or wine the voice end frame Term that the side of being interrupted MSC sends to be detected, system needs the Traffic Channel CH2 controlling interrupt call to be switched to, from forwarding service state (Repeating), the maintenance stage (Handshakehangtime) of shaking hands, channel (KeepCHForMSB) is kept for the side of interruption terminal B (MSB), during keeping channel, the uplink frame of other terminal detected, directly abandon and do not process.It should be noted that the english term occurred in Fig. 8 refer to the Chinese explanation of Fig. 1 to Fig. 7 english term occurred, the Chinese implication that identical english term represents is identical.

In some embodiments, intermediate station, when determining that the data handshakes request carrying interrupting information is across station data handshakes request, asks to ask across station data handshakes described in corresponding Source Site transmission to the described data handshakes carrying interrupting information；Then described response to described first terminal transmission data handshakes includes: receive the data handshakes response that described Source Site sends；When the response of described data handshakes is the response allowing to interrupt, sending data handshakes response to described first terminal, the type of described data handshakes response is for allowing to interrupt；When the response of described data handshakes is the response that refusal interrupts, sending data handshakes response to described first terminal, the type of described data handshakes response is interrupted for refusal.Implement the method being referred to Figure 11 and Figure 12 to realize.

Referring to Fig. 9, for the method flow diagram of the data communication that further embodiment of this invention provides, it is shown that method such as may include that

S901, first terminal determines idle channel, sends the data handshakes request carrying interrupting information on described idle channel.

S902, intermediate station detects that described data handshakes is asked.

S903, intermediate station sends data handshakes response.

S904, intermediate station sends RC instruction.

S905, first terminal detects handshake response, jumps to interrupting service channel.

S906, the second terminal detects RC instruction.

Second terminal is the side of being interrupted also is launch party, and launch terminal is launched at CH2 while voice, and every frame voice turns in receipts detection adjacent channel CH1 whether have RC.When RC being detected, resolve according to table 2 and be off transmission requests (0101), if the side of being interrupted enables can be interrupted call function, could stop launching.If being resolved to stopping firing order (0100), whether tube terminal does not enable and is interrupted call function, and it all must stop its own transmission.In this implementation, stopping firing order and generally controlled to initiate by dispatching desk, dispatching desk determine to interrupt which road calling, notice intermediate station fills RC order for stopping firing order.

Table 2:RC information

S907, the second terminal has sent current speech frame, retransmits voice end frame, discharges channel.

S908, first terminal detects voice end frame, initiates calling on interrupting service channel.

Referring to Figure 10, for the method schematic diagram of the data communication that further embodiment of this invention provides.In this embodiment, interruption of the idle channel initiation of the list station same frequency of lower terminal prioritizing selection being shaken hands is introduced in detail.4 channel CH1～CH4 are had in the XPT system of 2 carrier frequency shown in Figure 10, wherein CH2 and CH3 is just in forwarded call business, wherein, BSCH2 is taken by the business of terminal C call service group 1 (CcallG1), BSCH3 is taken by the business of terminal D call service group 2 (DcallG2), and BSCH1 and BSCH4 is in free time (IdleCH) state.It should be noted that the english term occurred in Figure 10 refer to the Chinese explanation of Fig. 1 to Fig. 9 english term occurred, the Chinese implication that identical english term represents is identical.

When interruption side terminal MS B is just receiving the audio call stage of oneself on Traffic Channel CH2, at this moment interruption side MSB presses PTT (English full name is PushToTalk, Chinese is for pressing key speech) want that initiating callback interrupts sending the transmitting of terminal MS C, initiate audio call, allow the group including MSC exhale G1 member can receive call.MSB detects that another time slot receiving calling is idle, that is: with the available free channel of frequency, interruption side MSB uses the idle channel CH1 with frequency to send the data handshakes request Handshake_Req carrying interrupting information, wait that intermediate station response Handshake_Rsp notifies that it jumps to CH2, after CH2 detects channel release (identifying that channel discharges by receiving voice end frame Term and the end frame of shaking hands (HandshakeTerm) of oneself), be switched to CH2 again initiate callback.

Intermediate station receives the data handshakes request Handshake_Req carrying interrupting information at Traffic Channel CH1, the data handshakes response Handshake_Rsp of a period of time (being 360ms in figure) is forwarded at next 60ms, judge that the Traffic Channel interrupted is CH2 simultaneously, therefore CH1 eat dishes without rice or wine broadcast Frame in every 120ms embed backward channel signaling RC, it is therefore an objective to interrupt CH2 calling.

The side of being interrupted terminal MS C is when CH2 launches voice, switching receives whether detection homogeneous frequency adjacent time slot CH1 has the backward channel signaling RC of broadcast, if be detected that backward channel signaling RC judgement are to stop firing order, MSC has sent current speech frame, retransmit a frame voice end frame Term to terminate to launch, discharge channel.

Referring to Figure 11, for the method schematic diagram of the data communication that further embodiment of this invention provides.

The present invention program both may be used for interrupt call in single station, is also applied in multistation interrupt call.Embodiment illustrated in fig. 11 interrupts illustrating across station callback under multiple station systems.

As shown in figure 11, terminal MS A exhales (terminal A call service group 1, i.e. ACallG1) in website 3 initiation group.Terminal MS B rests on website 1, exhales (ACallG1) in channel 1 (CH1) reception group.Terminal MS C rests on website 2, exhales (ACallG1) in channel 2 (CH2) reception group.Receiving across station calling with two terminal MS B, MSC in different websites below, the situation simultaneously initiating to interrupt shaking hands is that example illustrates.

As shown in figure 11, when the MSB of website 1 exhales in the CH1 the stopping website group received across station, identification is across station calling, selects the channel CH1 receiving calling to initiate to carry the data handshakes request of interrupting information, it is therefore an objective to interrupt the calling of G1.The MSC of website 2 uses the calling channel CH2 that receives in website 2 to initiate to carry the data handshakes request of interrupting information simultaneously.

It should be noted that terminal receives, at stop website, the audio call that other website sends, it is possible to directly initiate callback at the channel stopping website reception calling and interrupt.Because channel uplink is idle.When implementing, it is possible to increasing by 1 bit in the embedded speech link control frame LC eated dishes without rice or wine for identifying is across station calling.Be across station calling when terminal parses, initiate when callback of standing is interrupted, can the channel receiving calling directly initiate to carry interrupting information across station handshake request.

The intermediate station of website 1 or website 2 detects the data handshakes request carrying interrupting information, only issues initiation group across station and exhales the Source Site 3 of G1, while issue wait of shaking hands across station (data handshakes respond style is 4) the intermediate station receiving request is descending.Judged which processes carries the data handshakes request of interrupting information by Source Site 3, general rule is first to process first, if Source Site 3 first receives shaking hands across station of MSB, replys website 1 and allows B interrupt call, after receive MSC across station handshake request, reply website 2 refuse C interrupt call.

The intermediate station of website 1 receives the response message allowing B interrupt call, the data handshakes interrupted is allowed to respond (data handshakes respond style is 0) eating dishes without rice or wine to issue, MSB receives the data handshakes response allowing interrupt call, stays in the Traffic Channel of ACallG1, waits that A discharges channel.

The intermediate station of website 2 receives the response of refusal C interrupt call, eating dishes without rice or wine to issue data handshakes response (data handshakes respond style is 5) of refusal interruption, MSC receives the data handshakes response that the ongoing refusal of same call interrupts, and notifies that user points out " interrupt call failure ".

Intermediate station to be the successful terminal channel reservation of interrupt call, it is to avoid channel is preempted.

As described in Figure 12, the intermediate station of Source Site receives after the handshake request at station, need to notify that the adjacent channel (CH2) at interrupting service channel (CH1) embeds RC, purpose is that the group interrupting CH1 is exhaled, and it is that the interrupt requests which terminal (MSB) is initiated is allowed to that Source Site also needs to record.

When Source Site detects voice Term frame at interrupting service channel (CH1), switch the state of CH1 from Repeating to the hangtime that shakes hands, control the downlink space interface of CH1 to start forwarding and shake hands that (source address fills in MSB to Term simultaneously, destination address fills in G1), purpose is to retain channel for MSB, only allows MSB to initiate calling during this wait hangtime that shakes hands.

MSB waits that CH1 discharges channel.If MSB detects voice end frame VoiceTerm or the end frame HandshakeTerm that shakes hands, it was shown that CH1 discharges, MSB directly initiates voice on CH1.

In some embodiments, if intrasystem manager finds have the long-term busy channel of terminal not discharge channel resource, can be controlled at intrasystem idle intermediate station by programmable key or write the dedicated interrupt channel that frequency presets and send data handshakes request (kind of shaking hands needs to be set to 2) carrying interrupting information, it is therefore an objective to the channel that release takies for a long time.Intermediate station is given and is embedded backward channel signaling in the adjacent channel of busy channel, allows side's of being interrupted (launch terminal) stop launching, discharges channel.Under this application scenarios, intermediate station need not keep channel after voice Term being detected, is directly switched to channel clear (ChannelIdle) from forwarding operation Repeating state.

In some embodiments, terminal can initiate alert service.Below to write the application of the alert service disconnection calling of contract quotation the frequency reserved dedicated interrupt channel of configuration.The alert business of entering all first initiates to carry the data handshakes request of interrupting information at dedicated interrupt channel, determined to interrupt the speech business launched of any road or transfer calling maintenance stage callhangtime by intermediate station, reinform terminal and be switched to the Traffic Channel of interrupt call and carry out follow-up alert service.

In some embodiments, dispatching desk can directly issue the Traffic Channel that violence interrupt instruction (in table 2, RC is 0100) interrupts specifying.After intermediate station receives violence interrupt instruction, the adjacent channel descending embedding RC in the Traffic Channel specifying interrupt call, notice terminal is automatically releasable channel.When channels all in website are no-trunk, only dispatching desk can control to issue violence interrupt instruction to discharge channel.In addition, dispatching desk can also be supported to issue stopping transmission requests (0101) instruction, and the second terminal only has enable can be interrupted call function, could stop launching.If the second terminal detects stopping transmission requests instruction, but is not enabled on being interrupted call function, its transmitting is by unaffected.

In the method for data communication provided by the invention, terminal can first send the data handshakes request carrying interrupting information in system on any one idle channel, wait the data handshakes response allowing to interrupt, it is switched to the Traffic Channel carrying out calling of intermediate station notice again, by initiating subsequent voice calls again after Traffic Channel release being detected.In system, any one idle channel includes the idle channel of system distribution and writes the dedicated interrupt channel that frequency is preset.When terminal selects the idle channel of system distribution to initiate data handshakes request, terminal preferentially uses the same frequency idle channel of stop to initiate to shake hands interruptions, it is possible to the system access performance of raising interrupt call.

In the method for data communication provided by the invention, in system, arbitrary idle intermediate station detects the data handshakes request carrying interrupting information, interrupts the Traffic Channel carrying out calling, and notice terminal is switched to the Traffic Channel of interrupt call and carries out subsequent voice calls.Wherein, intermediate station interrupting service channel first interrupts same call, further according to the Traffic Channel that call priority priority interruption priority is low.Additionally, intermediate station can adjust the embedding method of backward channel signaling flexibly according to the frame type of eating dishes without rice or wine that Traffic Channel forwards, improve the system access performance of interrupt call.

In the method for data communication provided by the invention, also support the interrupt call function across station calling.Can initiate to shake hands interruptions at the channel receiving calling across station call interruption, improve effectively utilizing of channel resource.

In sum, the embodiment of the present invention can reach following beneficial effect:

1, will shake hands and interrupt call will combine, it is provided that more effective distributed cluster system interrupt scheme, reach the purpose of interrupt call with less channel resource.

2, can initiate to shake hands interruptions at the channel receiving calling across station call interruption, it is not necessary to waste idle channel resources and just can reach the purpose of interrupt call.

3, system is that the interruption carrying business keeps channel, can Call Collision in minimizing system, it is ensured that the calling of multiple terminal aborts only allows a success.

4, adjust the embedding method of backward channel signaling according to frame type of eating dishes without rice or wine flexibly, improve the system access performance of interrupt call.

Below the device that the method for embodiment of the present invention offer is corresponding is introduced.

Referring to Figure 13, for the device schematic diagram of the data communication that one embodiment of the invention provides.Shown device may include that

Transmitting element 1301, is used for determining idle channel, sends the data handshakes request carrying interrupting information on described idle channel；Described interrupting information at least includes the instruction of the calling of interrupting service channel；

Receive unit 1302, for receiving the data handshakes response that intermediate station sends；

Jump-transfer unit 1303, for when the type that described data handshakes responds be allow interrupt data handshakes response time, according to described data handshakes respond packet containing redirect channel instruction jump to the Traffic Channel that described intermediate station is specified；

Calling unit 1304, is used for, when the resource determined the second terminal aborts calling taking described Traffic Channel and carrying out calling, discharge described Traffic Channel, initiating calling in described Traffic Channel.

Further, described calling unit specifically for when detecting the voice end frame that the second terminal sends in described Traffic Channel, it is determined that takies the second terminal aborts calling that described Traffic Channel carries out calling, the resource discharging described Traffic Channel；Wherein, described voice end frame is for showing described second terminal aborts calling, discharging the resource of described Traffic Channel；Or, when in described Traffic Channel, detect that described intermediate station broadcasts shake hands end frame time, it is determined that take the second terminal aborts calling that described Traffic Channel carries out calling, the resource discharging described Traffic Channel；Described end frame of shaking hands is for showing that described intermediate station keeps Traffic Channel for described first terminal after described second terminal discharges the resource of described Traffic Channel.

Further, described transmitting element specifically for: default dedicated interrupt channel is defined as idle channel；Or, when determining that receiving same station calls, the same frequency idle channel receiving the Traffic Channel of calling is defined as idle channel；Or, the idle channel of the free intermediate station of system broadcasts is defined as idle channel；Or, when determine receive across station calling time, the described channel across station calling will be received and be defined as idle channel.

Further, described device also includes:

Releasing unit, for when when initiating the adjacent channel of Traffic Channel of calling and detecting that interrupt call indicates, sending voice end frame with interrupt call, the resource discharging described Traffic Channel.

Referring to Figure 14, it it is the block diagram of the device of the data communication that another embodiment of the present invention provides.Including: at least one processor 1401 (such as CPU), memorizer 1402, receptor 1403, transmitter 1404 and at least one communication bus 1405, for realizing the connection communication between these devices.Processor 1401 is for performing the executable module of storage in memorizer 1402, for instance computer program.Memorizer 1402 is likely to comprise high-speed random access memory (RAM:RandomAccessMemory), it is also possible to also include non-labile memorizer (non-volatilememory), for instance at least one disk memory.One or more than one program are stored in memorizer, and are configured to be performed one or more than one program package containing the instruction for carrying out following operation by one or more than one processor 1401:

Receive the data handshakes response that intermediate station sends；

In some embodiments, processor 1401 is specifically for performing one or more than one program package containing the instruction being used for carrying out following operation:

Described Traffic Channel detects second terminal send voice end frame or described intermediate station broadcast shake hands end frame time, in described Traffic Channel initiate calling；Wherein, described voice end frame is for showing described second terminal aborts calling, discharging the resource of described Traffic Channel；Described end frame of shaking hands is for showing that described intermediate station keeps Traffic Channel for described first terminal after described second terminal discharges the resource of described Traffic Channel.

Default dedicated interrupt channel is defined as idle channel；Or,

When determining that receiving same station calls, the same frequency idle channel receiving the Traffic Channel of calling is defined as idle channel；Or,

The idle channel of the free intermediate station of system broadcasts is defined as idle channel；Or,

When determine receive across station calling time, the described channel across station calling will be received and be defined as idle channel.

When initiating the adjacent channel of Traffic Channel of calling and detecting that interrupt call indicates, sending voice end frame with interrupt call, the resource discharging described Traffic Channel.

Referring to Figure 15, for the device schematic diagram of the data communication that one embodiment of the invention provides.Shown device may include that

Detection unit 1501, for detecting the data handshakes request carrying interrupting information that first terminal sends；Described interrupting information at least includes the instruction of the calling of interrupting service channel；

Determining unit 1502, the Traffic Channel of interrupt call is determined in the instruction being used for the calling according to described interrupting service channel；

First transmitting element 1503, for sending data handshakes response to described first terminal, the response of described data handshakes includes data handshakes respond style and redirects channel instruction；The described channel that redirects indicates for indicating described first terminal to jump to the Traffic Channel that described intermediate station is specified, with described, the described Traffic Channel specified determines that the Traffic Channel of interrupt call is identical；

Second transmitting element 1504, adjacent channel for determining the Traffic Channel of interrupt call in described interruption embeds interrupt call instruction, is used for described in indicating to rest on the second terminal aborts calling of the described Traffic Channel determining interrupt call, discharges the resource of described Traffic Channel.

Further, described determine unit specifically for:

When value in the instruction of the calling of described interrupting service channel is not zero, determine the Traffic Channel of interrupt call according to the value in the instruction of the calling of described interrupting service channel；

Value in the instruction of the calling of described interrupting service channel be zero and in asking according to described data handshakes the destination address information carried determine when there is the transfer calling corresponding with described destination address information, the Traffic Channel of described transfer calling correspondence is defined as the Traffic Channel of interrupt call；

Value in the instruction of the calling of described interrupting service channel be zero and in asking according to described data handshakes the destination address information carried determine when being absent from the transfer calling corresponding with described destination address information, according to default call priority, Traffic Channel corresponding for calling low for priority is defined as the Traffic Channel of interrupt call.

Further, the second transmitting element specifically for:

When determine that the adjacent channel of Traffic Channel of described interrupt call broadcasts be Frame time, the sync pattern of described Frame is replaced with the instruction of described interrupt call；

When determine that the adjacent channel of Traffic Channel of described interrupt call broadcasts be voice superframes time, described voice superframes embeds the instruction of described interrupt call.

Further, described device also includes:

Holding unit, for when the kind of shaking hands that described data handshakes is asked is the interrupt requests carrying business, keeping Traffic Channel for described first terminal.

Further, described holding unit specifically for:

When the voice end frame that described second terminal sends being detected in the Traffic Channel determining interrupt call, controlling described Traffic Channel and switch to, from forwarding service state, maintenance state of shaking hands, described intermediate station sends end frame of shaking hands in described Traffic Channel；Wherein, described voice end frame is for showing described second terminal aborts calling, discharging the resource of described Traffic Channel.Described end frame of shaking hands is for showing that described intermediate station keeps Traffic Channel for described first terminal after described second terminal discharges the resource of described Traffic Channel.Further, described device also includes:

3rd transmitting element, for when determining that the data handshakes carrying interrupting information is asked as asking across data handshakes of standing, the Source Site to the described data handshakes request correspondence carrying interrupting information sends described across data handshakes request of standing；

Described first transmitting element specifically for: receive described Source Site send data handshakes response；When the response of described data handshakes is the response allowing to interrupt, sending data handshakes response to described first terminal, the type of described data handshakes response is for allowing to interrupt；When the response of described data handshakes is the response that refusal interrupts, sending data handshakes response to described first terminal, the type of described data handshakes response is interrupted for refusal.

Referring to Figure 16, it it is the block diagram of the device of the data communication that another embodiment of the present invention provides.Including: at least one processor 1601 (such as CPU), memorizer 1602, receptor 1603, transmitter 1604 and at least one communication bus 1605, for realizing the connection communication between these devices.Processor 1601 is for performing the executable module of storage in memorizer 1602, for instance computer program.Memorizer 1602 is likely to comprise high-speed random access memory (RAM:RandomAccessMemory), it is also possible to also include non-labile memorizer (non-volatilememory), for instance at least one disk memory.One or more than one program are stored in memorizer, and are configured to be performed one or more than one program package containing the instruction for carrying out following operation by one or more than one processor 1601:

Sending data handshakes response to described first terminal, the response of described data handshakes includes data handshakes respond style and redirects channel instruction；The described channel that redirects indicates for indicating described first terminal to jump to the Traffic Channel that described intermediate station is specified, and the described Traffic Channel specified is identical with the Traffic Channel determining interrupt call；

In some embodiments, processor 1601 is specifically for performing one or more than one program package containing the instruction being used for carrying out following operation:

Resolve the request of described data handshakes, when the kind of shaking hands that described data handshakes is asked is the interrupt requests carrying business, keep Traffic Channel for described first terminal.

When the voice end frame that described second terminal sends being detected in the Traffic Channel determining interrupt call, controlling described Traffic Channel and switch to, from forwarding service state, maintenance state of shaking hands, described intermediate station sends end frame of shaking hands in described Traffic Channel；Wherein, described voice end frame is for showing described second terminal aborts calling, discharging the resource of described Traffic Channel；Described end frame of shaking hands is for showing that described intermediate station keeps Traffic Channel for described first terminal after described second terminal discharges the resource of described Traffic Channel.

When determining that the data handshakes request carrying interrupting information is across station data handshakes request, ask to ask across station data handshakes described in corresponding Source Site transmission to the described data handshakes carrying interrupting information；

Described response to described first terminal transmission data handshakes includes:

Receive the data handshakes response that described Source Site sends；

When the response of described data handshakes is the response allowing to interrupt, sending data handshakes response to described first terminal, the type of described data handshakes response is for allowing to interrupt；

When the response of described data handshakes is the response that refusal interrupts, sending data handshakes response to described first terminal, the type of described data handshakes response is interrupted for refusal.

Referring to Figure 17, for the system schematic of the data communication that further embodiment of this invention provides.

A kind of system 1700 for data communication, including first terminal 1300, intermediate station the 1500, second terminal 1800, wherein:

Described first terminal 1300 is used for: determine idle channel, sends the data handshakes request carrying interrupting information on described idle channel；Described interrupting information at least includes the instruction of the calling of interrupting service channel；Receive the data handshakes response that intermediate station sends；When the type that described data handshakes responds be allow interrupt data handshakes response time, according to described data handshakes respond packet containing redirect channel instruction jump to the Traffic Channel that described intermediate station is specified；When the resource determined the second terminal aborts calling taking described Traffic Channel and carrying out calling, discharge described Traffic Channel, described Traffic Channel is initiated calling；

Described intermediate station 1500 is used for: what detection first terminal sent carries the data handshakes request of interrupting information；Described interrupting information at least includes the instruction of the calling of interrupting service channel；The Traffic Channel of interrupt call is determined in the instruction of the calling according to described interrupting service channel；Sending data handshakes response to described first terminal, the response of described data handshakes includes data handshakes respond style and redirects channel instruction；The described channel that redirects indicates for indicating described first terminal to jump to the Traffic Channel that described intermediate station is specified, with described, the described Traffic Channel specified determines that the Traffic Channel of interrupt call is identical；The adjacent channel of the Traffic Channel of disconnected calling embeds interrupt call instruction in the determination, is used for described in indicating to rest on the second terminal aborts calling of the described Traffic Channel determining interrupt call, discharges the resource of described Traffic Channel；

Described second terminal 1800 is used for: when when initiating the adjacent channel of Traffic Channel of calling and detecting that described interrupt call indicates, sending voice end frame with interrupt call, the resource discharging described Traffic Channel.

Wherein, first terminal, intermediate station realization be referred to the realization of Figure 13-16 illustrated embodiment.

Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to other embodiment of the present invention.It is contemplated that contain any modification of the present invention, purposes or adaptations, these modification, purposes or adaptations are followed the general principle of the present invention and include the undocumented known general knowledge in the art of the disclosure or conventional techniques means.Description and embodiments is considered only as exemplary, and the true scope of the present invention and spirit are pointed out by claim below.

It should be appreciated that the invention is not limited in precision architecture described above and illustrated in the accompanying drawings, and various amendment and change can carried out without departing from the scope.The scope of the present invention is only limited by appended claim

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.

It should be noted that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment.The present invention can described in the general context of computer executable instructions, for instance program module.Usually, program module includes performing particular task or realizing the routine of particular abstract data type, program, object, assembly, data structure etc..The present invention can also be put into practice in a distributed computing environment, in these distributed computing environment, the remote processing devices connected by communication network perform task.In a distributed computing environment, program module may be located in the local and remote computer-readable storage medium including storage device.

Each embodiment in this specification all adopts the mode gone forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is the difference with other embodiments.Especially for device embodiment, owing to it is substantially similar to embodiment of the method, so describing fairly simple, relevant part illustrates referring to the part of embodiment of the method.Device embodiment described above is merely schematic, the wherein said unit illustrated as separating component can be or may not be physically separate, the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE.Some or all of module therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.The above is only the specific embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims

1. the method for a data communication, it is characterised in that being applied to first terminal, described method includes:

Receive the data handshakes response that intermediate station sends；

2. method according to claim 1, it is characterised in that described determine take the second terminal aborts calling that described Traffic Channel carries out calling, the resource that discharges described Traffic Channel includes:

3. method according to claim 1, it is characterised in that described determine that idle channel includes:

Default dedicated interrupt channel is defined as idle channel；Or,

4. method according to claim 1, it is characterised in that described method also includes:

5. the method for a data communication, it is characterised in that being applied to intermediate station, described method includes:

6. method according to claim 5, it is characterised in that the described instruction according to the calling of described interrupting service channel determines that the Traffic Channel of interrupt call includes:

7. method according to claim 5, it is characterised in that the adjacent channel of the described Traffic Channel of disconnected calling in the determination embeds interrupt call instruction and includes:

When determine that the adjacent channel of Traffic Channel of described interruption broadcasts be Frame time, the sync pattern of described Frame is replaced with the instruction of described interrupt call；

When determine that the adjacent channel of Traffic Channel of described interruption broadcasts be voice superframes time, described voice superframes embeds the instruction of described interrupt call.

8. method according to claim 5, it is characterised in that the request of described data handshakes also includes kind of shaking hands, and described method also includes:

When the kind of shaking hands that described data handshakes is asked is the interrupt requests carrying business, keep Traffic Channel for described first terminal.

9. method according to claim 8, it is characterised in that described for described first terminal keep Traffic Channel include:

10. method according to claim 5, it is characterised in that described method also includes:

Receive the data handshakes response that described Source Site sends；

11. the device of a data communication, it is characterised in that described device includes:

12. the device of a data communication, it is characterised in that described device includes:

13. the device for data communication, it is characterized in that, include memorizer, and one or more than one program, one of them or more than one program are stored in memorizer, and are configured to be performed one or more than one program package containing the instruction for carrying out following operation by one or more than one processor:

Receive the data handshakes response that intermediate station sends；

14. the device for data communication, it is characterized in that, include memorizer, and one or more than one program, one of them or more than one program are stored in memorizer, and are configured to be performed one or more than one program package containing the instruction for carrying out following operation by one or more than one processor:

15. the system for data communication, it is characterised in that include first terminal, intermediate station, the second terminal, wherein: