CN103781132B - Method and apparatus for switching detection of user plane and signaling plane in TETRA system - Google Patents
Method and apparatus for switching detection of user plane and signaling plane in TETRA system Download PDFInfo
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Abstract
The embodiments of the invention provide a method and apparatus for switching detection of a user plane and a signaling plane in a TETRA system. The method mainly comprises the following steps: in the lower MAC layer in the TETRA system, analyzing the types of logic channels in a data packet received by the lower MAC layer, and analyzing a PDU type and a time slot distribution information element which are included in the data packet in the data link layer and the network layer in the TETRA system; and performing comprehensive determination on an analysis result obtained by the data link layer and the network layer, and according to a determination result, determining the user plane or the signaling plane of a subsequent time slot in the TETRA system. According to the embodiments of the invention, downlink data sent by a base station to a mobile terminal is detected in the data link layer, the network layer and the like so that it can be determined whether the TETRA system should be at the user plane or the signaling plane to receive uplink and downlink data at each time slot, and during a detection process, it is unnecessary for TETRA network infrastructure or the mobile terminal to transmit information to a system applying the method provided by the invention through a special-purpose interface.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of TETRA (Terrestrial Trunked Radio, land
Ground trunked radio) user plane, the method and apparatus of signaling plane change detection in system.
Background technology
In TETRA system, the logic channel that is divided by function carries different data, lower MAC (Lower
Media Access Control, lower medium education) layer can distinguish most of logical channel type by training sequence,
For the logic channel that can not be accurately distinguished by training sequence, for example, it is carried on SCH (Signalling
Channel, signaling channel) on signaling data and the voice number being carried on TCH (Traffic Channel, Traffic Channel)
According to (their training sequences are consistent, but code encoding/decoding mode is different), lower MAC needs the instruction according to upper-layer protocol stack, can
Correct differentiation both logical channel type.Within mobile terminal or network infrastructure, this instruction derives from agreement
CMCE (Circuit Mode Control Entity, circuit mode control entity) in stack.
A kind of WCDMA (Wideband Code Division Multiple Access, wideband code division of the prior art
Multiple access) user plane, the method for signaling plane change detection are in system：According to 3GPP (3rd Generation Partnership
Project, third generation partner program) protocol requirement builds WCDMA (the Wideband Code Division shown in Fig. 1
Multiple Access, WCDMA) terminal consistency test system.In figure1In shown test system：
Duplexer is used for switching radio frequency and sends and receives.When WCDMA system simulator needs to send data, at duplexer
In transmission signal state, it is that mobile terminal sends downlink data；When protocol analyzer needs receiving data, duplexer is in and connects
Receive signal condition, receive the upstream data that mobile terminal sends.In a proper testing, duplexer is simulated by WCDMA system
Device controls, and carries out being switched fast of up-downgoing；
Radio-frequency signal generator.Radio-frequency signal generator the data that WCDMA system simulator sends is modulated and on
Frequency conversion；
Radio frequency reception and digital module.Radio frequency reception and digital module receive the upstream data that measured terminal sends,
And carry out down coversion and demodulation；
WCDMA system simulator is mainly responsible for sending the downlink data of WCDMA mobile communication system, simulates WCDMA network
Infrastructure are operated, and set up, maintain the normal connection of protocol analyzer and measured terminal；
In test system shown in Fig. 1, WCDMA system simulator passes through to run a whole set of protocol stack, can be intactly
The institute of simulation WCDMA system is functional, sends downlink data to mobile terminal and external test facility, and controls radio-frequency transmitter
It is in correct state and receive upstream data.Thus completing mobile terminal protocol uniformity test and radio frequency in WCDMA system
Uniformity test.
In a kind of above-mentioned WCDMA system of the prior art, user plane, the shortcoming of the method for signaling plane change detection are：?
During test system normal work, in WCDMA system simulator, need to run a whole set of protocol stack, anolog base station and switch whole
Function.On the protocol stack in this WCDMA system simulator, every layer is required for complete function, and particularly Internet needs
Safeguard a complicated state machine, in the state of ensureing that whole system can be operated in correctly.Thus leading to entirely test system
The cost of implementation of system and user plane, the method for signaling plane change detection is higher.
Radio-frequency transmitter does not have a complete detection function, need WCDMA system simulator collaborative under be operated, no
Can be operated independent of network infrastructure and mobile terminal it is impossible to receive the downlink data of WCDMA communication system.
Content of the invention
The embodiment provides user plane, the method and apparatus of signaling plane change detection in a kind of TETRA system,
To realize judging that TETRA system should be in user plane or signaling plane in each time slot exactly.
The invention provides following scheme：
User plane, the method for signaling plane change detection in a kind of TETRA system, including：
Lower MAC layer in TETRA system, the logical channel type in the packet that lower MAC layer is received is carried out point
Analysis, the PDU type comprising in the data link layer in described TETRA system and Internet are to described packet and time slot distribution
Information element is analyzed；
Comprehensive descision is carried out to the analysis result that described data link layer and Internet obtain, after determining according to judged result
Continuous time slot is in user plane or signaling plane in TETRA system, sends subsequent timeslot to described lower MAC layer and is in TETRA system
User plane in system or the configured information of signaling plane.
User plane, the device of signaling plane change detection in a kind of TETRA system, including：
Lower MAC layer processing module, for the lower MAC layer in TETRA system, in the packet that lower MAC layer is received
Logical channel type be analyzed；
Data link layer and network layer handles module, for the data link layer in TETRA system and Internet, to institute
State the PDU type comprising in packet and time slot allocation information element is analyzed；
Judging treatmenting module, the analysis result for obtaining to described data link layer and Internet carries out comprehensive descision,
Determine that subsequent timeslot is in user plane or signaling plane in TETRA system according to judged result, after described lower MAC layer is sent
Continuous time slot is in user plane in TETRA system or the configured information of signaling plane.
By the technical scheme that embodiments of the invention described above provide can be seen that the embodiment of the present invention pass through lower MAC layer,
The downlink data that upper MAC layer, LLC layer, MLE entity, CMCE entity and SNDCP entity are sent to mobile terminal to base station is examined
Survey, judge that TETRA system should be in user plane in each time slot or signaling plane receives up-downgoing data, in detection
During it is not necessary to TETRA network infrastructure or mobile terminal are transmitted these information to using this by special purpose interface
The system of method.The embodiment of the present invention can indicate that lower MAC layer is correctly decoded logical channel type and logic channel number well
According to enormously simplify the scale of protocol stack in TETRA Digital Clustering receiver, and do not need to safeguard complicated CMCE state
Machine, and reached independent of whole TETRA digital colony network, obtain all of up-downgoing in current network completely, exactly
The purpose of data.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to required use in embodiment description
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, without having to pay creative labor, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structural representation of WCDMA terminal consistency test system of the prior art；
A kind of structure of TETRA digital cluster system air interface protocols that Fig. 2 provides for the embodiment of the present invention one is shown
It is intended to；
Fig. 3 provides user plane in a kind of TETRA system, the method for signaling plane change detection for the embodiment of the present invention one
Process chart；
A kind of schematic diagram of full duplex call flow process that Fig. 4 provides for the embodiment of the present invention two；
Fig. 5 exhales the schematic diagram of flow process for a kind of half-duplex group that the embodiment of the present invention two provides；
Fig. 6 provides user plane in a kind of TETRA system, the device of signaling plane change detection for the embodiment of the present invention one
Structural representation.
Specific embodiment
For ease of the understanding to the embodiment of the present invention, do further below in conjunction with accompanying drawing taking several specific embodiments as a example
Explanation, and each embodiment does not constitute the restriction to the embodiment of the present invention.
Embodiment one
A kind of structural representation such as Fig. 2 institute of TETRA digital cluster system air interface protocols that this embodiment provides
Show.In TETRA Digital Clustering air interface protocols, mainly include user face data and signaling plane data, two class data
Training sequence is consistent, but code encoding/decoding mode is different, and the system using the present invention can be according to the air interface of tested examining system
Interactive signaling between each layer in protocol stack accurately judges the switching of user plane/signaling plane, all may be used with reaching two class data
With the purpose being correctly decoded.
In air interface protocols shown in above-mentioned Fig. 2, every layer of function is as follows：
Physical layer is responsible for gathering the up-downgoing data of tested frequency；
Lower MAC (Medium Access Control, medium access control layer) layer demodulates what simultaneously decoded PHY received
Data；
Upper MAC layer completes synchronization, time slot allocation information record and MAC-RESOURCE PDU (Protocol Data
Unit, protocol Data Unit) function such as filter；
LLC (Logical Link Control, logic link control) layer completes header data filtering function；
MLE (Mobile Link Entity, mobile link entity) layer completes header message filtering function；
CMCE entity completes user plane/signaling plane detection function；
SNDCP (SubNework Dependent Convergence Protocol, Sub-Network Dependent Convergence Protocol) completes
User plane/signaling plane detection function.
The data of MM (Mobility Management, mobile management) layer does not need to be detected.
In TETRA air interface protocols, data link layer includes lower MAC layer, upper MAC layer and LLC layer；Network layer packet
Include MLE layer, CMCE entity, SNDCP and MM.
The purpose that the embodiment of the present invention is processed for protocol stack data is to complete the detection of user plane/signaling plane switching, institute
Greatly simplified with the processing procedure of every layer data it is not required that safeguarding complicated state machine in CMCE entity.
Lower MAC layer in TETRA system, the logical channel type in the packet that lower MAC layer is received is carried out point
Analysis, the PDU type comprising in the data link layer in described TETRA system and Internet are to described packet and time slot distribution
Information element is analyzed；
Comprehensive descision is carried out to the analysis result that described data link layer and Internet obtain, after determining according to judged result
Continuous time slot is in user plane or signaling plane in TETRA system, sends subsequent timeslot to described lower MAC layer and is in TETRA system
User plane in system or the configured information of signaling plane.
This embodiment offers user plane in a kind of TETRA system, the method for signaling plane change detection handling process such as
Shown in Fig. 3, including following processing procedure：
In lower MAC layer, record MAC layer and receive temporal information (multi-frame number, frame number and timeslot number) during packet, right
Logical channel type in above-mentioned packet is analyzed.Acquisition belongs to SCH/F (Signalling CHannel/Full
Slot, full-time gap signaling channel), (Signalling CHannel/Half slot Downlink, half slot is descending for SCH/HD
Signaling channel) and STCH (STealing CHannel, steal channel) logic channel packet, the embodiment of the present invention only processes
The packet comprising in SCH/F, SCH/HD and STCH logic channel, if packet is not belonging to SCH/F, SCH/HD and STCH and patrols
Collect channel, then flow process terminates.
In upper MAC layer, the PDU type and time slot allocation information element comprising in described packet is analyzed, if
PDU type is MAC-RESOURCE PDU, then execute following processing procedures；Otherwise, flow process terminates.
In upper MAC layer, decode all information elements in MAC-RESOURCE PDU, if wherein comprising time slot distribution letter
Breath, then record assigned slot；If comprising channel allocation information element, then judge the carrier number wherein comprising and supervised
Which carrier wave surveyed is consistent, and this carrier wave of diversion treatments, otherwise terminates this process.
In LLC layer and MLE layer, the header message of the packet that decoding LLC layer and MLE layer receive respectively.Obtain described
The agreement authentication information element of the front 3bit Data Identification in the header message of the packet of MLE layer, differentiates according to described agreement
Information element judges that whether the following entities of described packets need transmission are that (agreement authentication information element value is CMCE entity
“0102") or SNDCP entity (agreement authentication information element value be " 1002”).
The mapping relations of agreement authentication information element value and correspondent entity are shown in Table 1；
Table1The value of agreement authentication information element and the mapping relations of correspondent entity
If follow-up data should be transferred to CMCE entity, and upper MAC layer comprises time slot allocation elements, then decoding
The header message of the packet that CMCE entity receives, if the PDU type comprising in packet is D-CONNECT or D-
CONNECT ACK, recording this user plane/signaling plane testing result is user plane, determines that subsequent timeslot is in TETRA system
User plane, the configured information that subsequent timeslot is in the user plane in TETRA system is sent to described lower MAC layer；
If the PDU type comprising in packet is D-SETUP, then judge " the notice comprising in this D-SETUP PDU
The value of instruction ", if this value is corresponding " group is exhaled and entered late ", then terminate this process, otherwise records this user plane/signaling plane inspection
Survey result is user plane, determines the user plane that subsequent timeslot is in TETRA system, sends subsequent timeslot to described lower MAC layer
It is in the configured information of the user plane in TETRA system；Afterwards, according to this testing result, configure this passage corresponding time slot and use
The change of family face/signaling plane, and the change of the user plane/signaling plane of the corresponding time slot of corresponding data feedback channel.
If follow-up data should be transferred to CMCE entity, but upper MAC layer does not comprise time slot allocation elements, decodes CMCE
The header message of the packet that entity receives, if the PDU type comprising in packet is D-TX GRANTED or D-TX
INTERRUPT, recording this user plane/signaling plane testing result is user plane, determines that subsequent timeslot is in TETRA system
User plane, sends, to described lower MAC layer, the configured information that subsequent timeslot is in the user plane in TETRA system；
If the PDU type comprising in packet is D-DISCONNECT, D-TX CEASED, D-TX WAIT, minute book
Secondary user plane/signaling plane testing result is signaling plane, determines the signaling plane that subsequent timeslot is in TETRA system, under described
MAC layer sends the configured information that subsequent timeslot is in the signaling plane in TETRA system；Afterwards, the time according to above-mentioned record believes
Breath, and this testing result, configure the change of this passage corresponding time slot user plane/signaling plane, and corresponding data feedback channel
The user plane/signaling plane of corresponding time slot change.
If follow-up data should be transferred to SNDCP entity, the stem letter of the packet that decoding SNDCP entity receives
Breath, if the PDU type comprising in packet is SN-Data Transmit Request or SN-Data Transmit
Response, recording this user plane/signaling plane testing result is signaling plane, determines that subsequent timeslot is in TETRA system
Signaling plane, sends, to described lower MAC layer, the configured information that subsequent timeslot is in the signaling plane in TETRA system；According to this inspection
Survey result, configure the change of this passage assigned slot user plane/signaling plane, and the assigned slot of corresponding data feedback channel
User plane/signaling plane change.
If follow-up data should be transferred to other parts, then terminate this process；
Embodiment two
This embodiment taking full duplex call and half-duplex group-calling process as a example, illustrates TETRA Digital Clustering user plane/signaling
The method of face change detection.A kind of schematic diagram of full duplex call flow process that this embodiment provides is as shown in Figure 4.
In the detection process of the full duplex call shown in Fig. 4, only process downlink data, therefore give up U-SETUP, U-
ALERT PDU, U-CONNECT and U-DISCONNECT PDU.
In the processing procedure of downlink data, the PDU type of upper MAC layer and respective value are shown in Table 2.
Table2Upper MAC layer PDU type and respective value
In call establishment stage, first, according to table 2, if logical channel type is SCH/F, and PDU types value is
“002", then obtain MAC-RESOURCE PDU；Then according to Table 3 below, filter LLC layer header message, further according to following tables
4, filter MLE layer header message, if the value of MLE layer protocol authenticator is " 0102", that is, current data should be transmitted to CMCE,
So continue with；Finally, according to table 5 below, judge CMCE entity PDU type, obtain D-SETUP PDU, D-CALL-
PROCEEDING PDU, D-INFO PDU and D-ALERT PDU, because on the D-SETUP PDU of call establishment stage is corresponding
Time slot allocation information is not comprised, other 3 PDU are not related to user plane conversion in the header message of MAC layer, so testing result
For not carrying out user plane/signaling plane conversion.
Table 3 LLC layer PDU type and respective value
Table 4 MLE layer protocol authenticator
Table 5 CMCE entity PDU type
In call setup success, MAC-RESOURCE PDU is obtained according to table 2, and record the main side of exhaling and called party when
Gap distributes information；LLC layer and MLE layer header message are filtered respectively according to table 3 and table 4, D-CONNECT PDU is obtained according to table 5
With D-CONNECT ACK PDU, this two PDU are related to signaling plane and switch to user plane, and therefore, this testing result is to distribute
Time slot switchs to user plane from signaling plane.
In calling procedure, logical channel type is TCH, does not carry out user plane/signaling plane detection.
In the end of calling stage, MAC-RESOURCE PDU is obtained according to table 2；LLC layer is filtered respectively according to table 3 and table 4
With MLE layer header message, D-RELEASE PDU is obtained according to table 5, this PDU is related to user plane and switchs to signaling plane, so this
Secondary testing result is that from user plane, distribution time slot is switched to signaling plane.
A kind of half-duplex group that this embodiment provides exhales flow process as shown in Figure 5.Half-duplex group-calling process shown in Fig. 5
In, only process downlink data, therefore give up U-SETUP, U-TX-CEASED, U-TX-DEMAND and U-DISCONNECT PDU.
In call establishment stage, first, according to table 2, if logical channel type is SCH/F, and PDU types value is
“002", then PDU type is MAC-RESOURC, and records time slot allocation information；Then according to table 3, filter LLC layer stem letter
Breath, according to table 4, filters MLE layer header message, if the value of MLE layer protocol authenticator is " 0102", then follow-up data should
It is sent to CMCE entity to be processed；Finally, according to table 5, judge CMCE entity PDU type, obtain D-SETUP (001112) and
D-CONNECT(000102) PDU, this two PDU contain time slot allocation information in MAC layer, are sent respectively to group member
With the main side of exhaling, this testing result is that from signaling plane, distribution time slot is switched to user plane.
In the calling holding stage, being filtrated to get logical channel type is SCH/F, and PDU types value is " 002", according to table 2,
Upper MAC layer PDU type is MAC-RESOURCE, and current time slots as distribute time slot；According to table 3 and table 4 filter respectively LLC layer and
MLE layer header message；If obtaining " 010012", according to table 5, CMCE entity PDU type is D-TX CEASED PDU, then
Distribution time slot is switched to signaling plane from user plane, terminates voice call；If D-TX DEMAND PDU is obtained according to table 5, that is,
“010112", then distribution time slot is switched to user plane from signaling plane, starts voice call.
In the end of calling stage, MAC-RESOURCE PDU is obtained according to table 2, current time slots as distribute time slot；According to
Table 3 and table 4 filter LLC layer and MLE layer header message respectively；If D-TX CEASED PDU is obtained according to table 5, that is,
“010012", then distribution time slot is switched to signaling plane from user plane, terminates voice call；If D- is obtained according to table 5
RELEASE PDU, that is, " 001102", then the time slot distributing MAC layer switchs to signaling plane from user plane, this end of calling.
Embodiment three
User plane, the structural representation of the device of signaling plane change detection in a kind of TETRA system that this embodiment provides
As shown in fig. 6, following module specifically can be included：
Lower MAC layer processing module 610, for the lower MAC layer in TETRA system, the packet that lower MAC layer is received
In logical channel type be analyzed；
Data link layer and network layer handles module 620, for the data link layer in TETRA system and Internet,
The PDU type and time slot allocation information element comprising in described packet is analyzed；
Judging treatmenting module 630, the analysis result for obtaining to described data link layer and Internet carries out comprehensively sentencing
Disconnected, determine that subsequent timeslot is in user plane or signaling plane in TETRA system according to judged result, described lower MAC layer is sent out
Go out the user plane that subsequent timeslot is in TETRA system or the configured information of signaling plane.
Specifically, described lower MAC layer processing module 610, the packet specifically for receiving to lower MAC layer solves
Analysis, obtains the packet belonging to SCH/F, SCH/HD and STCH logic channel；
Specifically, described data link layer and network layer handles module 620, specifically for described belong to SCH/F,
The packet PDU type of SCH/HD and STCH logic channel is parsed, when the analysis result of described PDU type is MAC-
RESOURCE PDU, then decode the time slot allocation information element comprising in described MAC-RESOURCE PDU and channel allocation information
Element；
The header message of the packet of SCH/F, SCH/HD and STCH logic channel is belonged to, according to described stem described in decoding
Information belongs to, described in determining, the following entities that the packets need of SCH/F, SCH/HD and STCH logic channel is transmitted.Decoding is described
Belong to the LLC layer of the packet of SCH/F, SCH/HD and STCH logic channel and the header message of MLE layer, obtain described MLE layer
Header message in front 3bit mark agreement authentication information element, described number is judged according to described agreement authentication information element
It is CMCE entity or SNDCP entity according to the following entities that bag needs transmission.
Specifically, described judging treatmenting module 630, specifically for being CMCE entity when described following entities, and institute
State and in MAC-RESOURCE PDU, comprise time slot allocation information element, decode the header message of described CMCE entity；
If the PDU type comprising in the header message of described CMCE entity is D-CONNECT or D-CONNECT
ACK, then judge that this user plane/signaling plane testing result is user plane, determine the user that subsequent timeslot is in TETRA system
Face, sends, to described lower MAC layer, the configured information that subsequent timeslot is in the user plane in TETRA system；
If the PDU type comprising in the header message of described CMCE entity is D-SETUP, then judge this D-SETUP
The value of " the notice instruction " that comprise in PDU, if the value that " should notice instruction " is not corresponding " group is exhaled and entered late ", judges this user
Face/signaling plane testing result is user plane, determines the user plane that subsequent timeslot is in TETRA system, described lower MAC layer is sent out
Go out the configured information that subsequent timeslot is in the user plane in TETRA system.
Or, when described following entities are not comprise time slot in CMCE entity, and described MAC-RESOURCE PDU to divide
Join information element, decode the header message of described CMCE entity；
If the PDU type comprising in the header message of described CMCE entity is D-TX GRANTED or D-TX
INTERRUPT, then judge that this user plane/signaling plane testing result is user plane, determine that subsequent timeslot is in TETRA system
User plane, the configured information that subsequent timeslot is in the user plane in TETRA system is sent to described lower MAC layer；
If the PDU type comprising in the header message of described CMCE entity be D-DISCONNECT, D-TX CEASED,
D-TX WAIT, then judge that this user plane/signaling plane testing result is signaling plane, determine that subsequent timeslot is in TETRA system
Signaling plane, the configured information that subsequent timeslot is in the signaling plane in TETRA system is sent to described lower MAC layer.
Or, when described following entities are SNDCP entity, decode the header message of described SNDCP entity；
If the PDU type comprising in the header message of described SNDCP entity is SN-Data Transmit Request
Or SN-Data Transmit Response, then judge that this user plane/signaling plane testing result is signaling plane, after determination
Continuous time slot is in the signaling plane in TETRA system, sends, to described lower MAC layer, the signaling that subsequent timeslot is in TETRA system
The configured information in face.
Carried out with the device of the embodiment of the present invention user plane in TETRA system, the detailed process of signaling plane change detection with
Preceding method embodiment is similar to, and here is omitted.
In sum, the embodiment of the present invention is by being sent under mobile terminal to base station in data link layer and Internet
Row data is detected, judges that system should be in user plane in each time slot or signaling plane receives upper and lower line number
According to it is not necessary to these information are sent by TETRA network infrastructure or mobile terminal by special purpose interface in detection process
To the system using this method.The embodiment of the present invention can indicate that lower MAC layer is correctly decoded logical channel type and patrols well
Collect channel data, enormously simplify the scale of protocol stack in TETRA Digital Clustering receiver, and do not need to safeguard complexity
CMCE state machine, and reached independent of whole TETRA digital colony network, obtain all in current network completely, exactly
Up-downgoing data purpose.
Do not need to develop a whole set of protocol stack with complete function, every layer of master using the method and apparatus of the embodiment of the present invention
Want function as follows：Upper MAC layer completes synchronization, MAC-RESOURCE PDU identification and distribution time slot writing function；LLC layer completes head
Portion's data filtering function；MLE layer completes header message filtering function；CMCE entity completes user plane/signaling plane change detection work(
Energy；SNDCP completes user plane/signaling plane handover detection function.Every layer of development difficulty substantially reduces, and particularly CMCE entity is not
Need to safeguard complicated state machine, you can complete user plane/signaling plane detection function.
The embodiment of the present invention can also be applied to only carry the TETRA Digital Clustering receiver of phonetic incepting function, will
All time slot is in user plane and is received；The present invention can be also used for only carrying the TETRA numeral of signaling data receive capabilities
Cluster receiver, all time slot will be in signaling plane and received.
One of ordinary skill in the art will appreciate that：Accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or
Flow process is not necessarily implemented necessary to the present invention.
As seen through the above description of the embodiments, those skilled in the art can be understood that the present invention can
Mode by software plus necessary general hardware platform to be realized.Based on such understanding, technical scheme essence
On in other words prior art is contributed partly can be embodied in the form of software product, this computer software product
Can be stored in storage medium, such as ROM/RAM, magnetic disc, CD etc., include some instructions use so that a computer equipment
(can be personal computer, server, or network equipment etc.) executes some of each embodiment of the present invention or embodiment
Partly described method.
Each embodiment in this specification is all described by the way of going forward one by one, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for device or
For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, referring to method in place of correlation
The part of embodiment illustrates.Apparatus and system embodiment described above is only schematically wherein said conduct
Separating component explanation unit can be or may not be physically separate, as the part that unit shows can be or
Person may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can root
Factually border need select the purpose to realize this embodiment scheme for some or all of module therein.Ordinary skill
Personnel are not in the case of paying creative work, you can to understand and to implement.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (12)
1. the method for user plane in a kind of TETRA system, signaling plane change detection is it is characterised in that include：
Lower MAC layer in TETRA system, the logical channel type in the packet that lower MAC layer is received is analyzed, and obtains
Take the packet belonging to SCH/F, SCH/HD and STCH logic channel, the data link layer in described TETRA system and network
Layer is analyzed to the PDU type comprising in described packet and time slot allocation information element；
Comprehensive descision is carried out to the analysis result that described data link layer and Internet obtain, when determining follow-up according to judged result
Gap is in user plane or signaling plane in TETRA system, sends subsequent timeslot to described lower MAC layer and is in TETRA system
User plane or signaling plane configured information.
2. the method for user plane in TETRA system according to claim 1, signaling plane change detection is it is characterised in that institute
The lower MAC layer in TETRA system stated, the logical channel type in the packet that lower MAC layer is received is analyzed,
Data link layer in described TETRA system and Internet are to the PDU type comprising in described packet and time slot allocation information
Element is analyzed, including：
Lower MAC layer in TETRA system, the packet that lower MAC layer is received parses, and obtains and belongs to full-time gap signaling
The packet of channel SCH/F, half slot downlink signaling channel SCH/HD and steal channel STCH logic channel；
In upper MAC layer, the described packet PDU type belonging to SCH/F, SCH/HD and STCH logic channel is parsed, when
The analysis result of described PDU type be MAC-RESOURCE PDU, then decode comprise in described MAC-RESOURCE PDU when
Gap distribution information element and channel allocation information element；
In LLC layer and MLE layer, respectively decoding LLC layer and MLE layer receive described in belong to SCH/F, SCH/HD and STCH logic
The header message of the packet of channel, belongs to SCH/F, SCH/HD and STCH logic channel according to described header message determines
Packets need transmission following entities.
3. the method for user plane in TETRA system according to claim 2, signaling plane change detection is it is characterised in that institute
The header message of the packet of SCH/F, SCH/HD and STCH logic channel is belonged to, according to described header message described in the decoding stated
The following entities of the packets need transmission of SCH/F, SCH/HD and STCH logic channel are belonged to described in determination, including：
The logical link control LLC layer of the packet of SCH/F, SCH/HD and STCH logic channel and mobile chain is belonged to described in decoding
The header message of road entity MLE floor, obtains the agreement authentication information unit of the front 3bit mark in the header message of described MLE layer
Element, judges that according to described agreement authentication information element the following entities of described packets need transmission are circuit mode control entity
CMCE or Sub-Network Dependent Convergence Protocol SNDCP entity.
4. user plane, the method for signaling plane change detection in the TETRA system according to Claims 2 or 3, its feature exists
In described carries out comprehensive descision to the analysis result that described data link layer and Internet obtain, and is determined according to judged result
Subsequent timeslot is in user plane or signaling plane in TETRA system, including：
When described following entities are to comprise time slot allocation information element in CMCE entity, and described MAC-RESOURCE PDU,
Decode the header message of described CMCE entity；
If the PDU type comprising in the header message of described CMCE entity is D-CONNECT or D-CONNECT ACK,
Then judge the user plane that subsequent timeslot is in TETRA system；
If the PDU type comprising in the header message of described CMCE entity is D-SETUP, then judge this D-SETUP PDU
In the value of " notice instruction " that comprises, if should " notice instruction " value not corresponding " group is exhaled and entered late ", judge at subsequent timeslot
User plane in TETRA system.
5. user plane, the method for signaling plane change detection in the TETRA system according to Claims 2 or 3, its feature exists
In described carries out comprehensive descision to the analysis result that described data link layer and Internet obtain, and is determined according to judged result
Subsequent timeslot is in user plane or signaling plane in TETRA system, including：
When described following entities are not comprise time slot allocation information unit in CMCE entity, and described MAC-RESOURCE PDU
Element, decodes the header message of described CMCE entity；
If the PDU type comprising in the header message of described CMCE entity is D-TX GRANTED or D-TX
INTERRUPT, then judge that distribution time slot is in the user plane in TETRA system；
If the PDU type comprising in the header message of described CMCE entity is D-DISCONNECT, D-TX CEASED, D-TX
WAIT, then judge that distribution time slot is in the signaling plane in TETRA system.
6. user plane, the method for signaling plane change detection in the TETRA system according to Claims 2 or 3, its feature exists
In described carries out comprehensive descision to the analysis result that described data link layer and Internet obtain, and is determined according to judged result
Subsequent timeslot is in user plane or signaling plane in TETRA system, including：
When described following entities are SNDCP entity, decode the header message of described SNDCP entity；
If the PDU type comprising in the header message of described SNDCP entity be SN-Data Transmit Request or
SN-Data Transmit Response, then judge the signaling plane that subsequent timeslot is in TETRA system.
7. the device of user plane in a kind of TETRA system, signaling plane change detection is it is characterised in that include：
Lower MAC layer processing module, for the lower MAC layer in TETRA system, patrolling in the packet that lower MAC layer is received
Collect channel type to be analyzed；
Data link layer and network layer handles module, for the data link layer in TETRA system and Internet, to described number
It is analyzed according to the PDU type and time slot allocation information element comprising in bag；
Judging treatmenting module, the analysis result for obtaining to described data link layer and Internet carries out comprehensive descision, according to
Judged result determines that subsequent timeslot is in user plane or signaling plane in TETRA system, when sending follow-up to described lower MAC layer
Gap is in user plane in TETRA system or the configured information of signaling plane；
Described lower MAC layer processing module, the packet specifically for receiving to lower MAC layer parses, and acquisition belongs to
The packet of SCH/F, SCH/HD and STCH logic channel.
8. user plane in TETRA system according to claim 7, signaling plane change detection device it is characterised in that：
Described data link layer and network layer handles module, specifically for belonging to SCH/F, SCH/HD and STCH logic to described
The packet PDU type of channel is parsed, and when the analysis result of described PDU type is MAC-RESOURCE PDU, then decodes
The time slot allocation information element comprising in described MAC-RESOURCE PDU and channel allocation information element；
The header message of the packet of SCH/F, SCH/HD and STCH logic channel is belonged to, according to described header message described in decoding
The following entities of the packets need transmission of SCH/F, SCH/HD and STCH logic channel are belonged to described in determination.
9. user plane in TETRA system according to claim 8, signaling plane change detection device it is characterised in that：
Described data link layer and network layer handles module, patrol specifically for belonging to SCH/F, SCH/HD and STCH described in decoding
Collect the logical link control LLC layer of packet of channel and the header message of mobile link entity MLE layer, obtain described MLE layer
Header message in front 3bit mark agreement authentication information element, described number is judged according to described agreement authentication information element
According to the following entities that bag needs transmission be circuit mode control entity CMCE entity or Sub-Network Dependent Convergence Protocol SNDCP is real
Body.
10. user plane, the device of signaling plane change detection in TETRA system according to claim 8 or claim 9, its feature exists
In：
Described judging treatmenting module, specifically for being CMCE entity when described following entities, and described MAC-RESOURCE
Comprise time slot allocation information element in PDU, decode the header message of described CMCE entity；
If the PDU type comprising in the header message of described CMCE entity is D-CONNECT or D-CONNECT ACK,
Then judge that distribution time slot is in the user plane in TETRA system；
If the PDU type comprising in the header message of described CMCE entity is D-SETUP, then judge this D-SETUP PDU
In the value of " notice instruction " that comprises, if should " notice instruction " value not corresponding " group is exhaled and entered late ", judge at distribution time slot
User plane in TETRA system.
User plane, the device of signaling plane change detection in 11. TETRA systems according to claim 8 or claim 9, its feature exists
In：
Described judging treatmenting module, specifically for being CMCE entity when described following entities, and described MAC-RESOURCE
Do not comprise time slot allocation information element in PDU, decode the header message of described CMCE entity；
If the PDU type comprising in the header message of described CMCE entity is D-TX GRANTED or D-TX
INTERRUPT, then judge the user plane that subsequent timeslot is in TETRA system；
If the PDU type comprising in the header message of described CMCE entity is D-DISCONNECT, D-TX CEASED, D-TX
WAIT, then judge the signaling plane that subsequent timeslot is in TETRA system.
User plane, the device of signaling plane change detection in 12. TETRA systems according to claim 8 or claim 9, its feature exists
In：
Described judging treatmenting module, specifically for being SNDCP entity when described following entities, decodes described SNDCP entity
Header message；
If the PDU type comprising in the header message of described SNDCP entity be SN-Data Transmit Request or
SN-Data Transmit Response, then judge the signaling plane that subsequent timeslot is in TETRA system.
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| CN104936158B (en) * | 2015-04-23 | 2018-07-10 | 河北远东通信系统工程有限公司 | A kind of channel arrangement method based on TETRA signaling models |
| CN109600788B (en) * | 2018-12-28 | 2020-08-18 | 北京交通大学 | Police digital cluster air interface consistency test method |
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| WO2001067793A1 (en) * | 2000-03-06 | 2001-09-13 | Siemens Aktiengesellschaft | Method and device for transmitting voice data in a mobile radio network |
| CN102307333A (en) * | 2011-08-18 | 2012-01-04 | 上海三吉电子工程有限公司 | Centerless trans European trunked radio (TETRA) system consisting of radio link TETRA base station |
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