CN109245816A - A kind of chain circuit detecting method and device - Google Patents
A kind of chain circuit detecting method and device Download PDFInfo
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- CN109245816A CN109245816A CN201710557685.3A CN201710557685A CN109245816A CN 109245816 A CN109245816 A CN 109245816A CN 201710557685 A CN201710557685 A CN 201710557685A CN 109245816 A CN109245816 A CN 109245816A
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- radio link
- message
- transport layer
- signaling
- terminal device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The embodiment of the invention provides a kind of chain circuit detecting method and devices, wherein, the described method includes: after business transport layer receives the target message that signaling control layer is sent, the target packet of construction is sent in terminal device according to predetermined period, wherein, the target message includes that message and/or Radio Link Detection message are established in wireless signaling carrying, and the Radio Link Detection message is that signaling control layer is sent for the radio link failure message that physical layer reports；According to response message, judge the Radio Link whether step-out, the response message is the terminal device for target packet return；The signaling control layer will be reported to for the judging result of radio link failure.Therefore after the radio link failure message that physical layer is sent, and after terminal device and satellite equipment establish wireless signaling carrying, business transport layer detects Radio Link, improves the accuracy to Radio Link Detection.
Description
Technical field
The present invention relates to fields of communication technology, more particularly to a kind of chain circuit detecting method and a kind of link detecting device.
Background technique
Satellite communication system is made of satellite, earth station and user terminal, since satellite operation is in several hundred, thousands of, very
To up to ten thousand kilometers of track, so that satellite communication system coverage area is much larger than general mobile communication system, therefore can adopt
With satellite communication system in order to realize large-scale covering.Correspondingly, frequency point, time slot and power etc. in satellite communication system
Deng being all more valuable resource, therefore the resource of ineffective occupation is discharged as far as possible.
The testing mechanism that a set of Radio Link (Radio Link, RL) failure has been established in satellite communication system, that is, use
Physical layer detects RL, carries (User Radio Bearer, URB) when establishing user radio between satellite and user
Afterwards, it can detect that RL is in normal condition；But when terminal device carries out particular service such as short message service, satellite and user it
Between only establish Signaling Radio Bearer (Signal Radio Bearer, SRB), alternatively, can not be set up under abnormal scene
URB, when only establishing SRB, due to not transmitting data between satellite and user, physical layer is whether RL loses to the testing result of RL
Step, but to be likely to be at normal state i.e. RL normal by RL at this time, but really without transmission data, it is also possible to step-out；As it can be seen that
RL detection method in the prior art, the case where to SRB is only existed between user and satellite, the accuracy rate of testing result is lower.
Summary of the invention
The embodiment of the present invention is the technical problem to be solved is that a kind of chain circuit detecting method is provided, to solve in the prior art
The lower problem of the accuracy rate of wireless link detecting method detection.
Correspondingly, the embodiment of the invention also provides a kind of link detecting device, to guarantee the above method realization and
Using.
To solve the above-mentioned problems, the invention discloses a kind of chain circuit detecting methods, are applied in satellite communication system, tool
After body includes: the target message that business transport layer receives the transmission of signaling control layer, according to predetermined period by the number of targets of construction
It is sent in terminal device according to packet, wherein the target message includes that message and/or Radio Link inspection are established in wireless signaling carrying
Message is surveyed, the Radio Link Detection message is that signaling control layer is sent for the radio link failure message that physical layer reports
's；According to response message, judge the Radio Link whether step-out, the response message is the terminal device for the mesh
Mark what data packet returned；The signaling control layer will be reported to for the judging result of radio link failure.
Optionally, according to response message, judge the Radio Link whether step-out the step of, comprising: judge the business
Whether transport layer receives response message in the first preset time；If the business transport layer receives in the first preset time
To response message, it is determined that the Radio Link is normal；If the business transport layer does not receive sound in the first preset time
Answer message, it is determined that the radio link failure.
Optionally, before the step of determining the radio link failure, the method further include: judge the business
Whether the number that transport layer sends target packet is more than threshold value；If the number is more than threshold value, execute determining described wireless
The step of link step-out；If the number is less than threshold value, target packet is sent in the terminal device again, and
It executes and the step of whether the business transport layer receives response message in the first preset time is judged.
Optionally, before the step of business transport layer receives the target message of signaling control layer transmission, the side
Method further include: after the radio link failure message that signaling control layer receives physical layer transmission, the signaling control layer judgement
Whether wireless signaling carrying is only existed between satellite equipment and terminal device；If only existing nothing between satellite equipment and terminal device
Line signaling bear, then signaling control layer sends the Radio Link Detection message to business transport layer；If satellite equipment and terminal
It is not to only exist wireless signaling carrying between equipment, then the signaling control layer determines radio link failure, and discharges corresponding net
Network resource；And/or after signaling control layer establishes wireless signaling carrying between satellite equipment and terminal device, to the business
Transport layer sends the wireless signaling carrying and establishes message.
Optionally, after the step of testing result is reported to the signaling control layer, the method is also wrapped
Include: the signaling control layer judges whether it receives the judging result in the second preset time；If the signaling control
Layer receives the judging result in the second preset time, and the judging result is radio link failure, then discharges correspondence
Internet resources；If the signaling control layer does not receive the judging result in the second preset time, the release is corresponded to
Internet resources.
Optionally, before the target packet of construction is sent to the step in terminal device according to predetermined period, institute
The method stated further include: business transport layer judges that the wireless signaling carries whether corresponding signaling data sends success；If not
It sends successfully, then the business transport layer retransmits the signaling data；If sending successfully, executing will be constructed according to predetermined period
Target packet be sent to the step in terminal device.
Optionally, the target packet is constructed according to the corresponding communication protocol of the satellite communication system.
The invention also discloses a kind of link detecting devices, are applied in satellite equipment, and the device includes: data hair
Module is sent, after the target message for receiving the transmission of signaling control layer, is sent out the target packet of construction according to predetermined period
It send into terminal device, wherein the target message includes that wireless signaling carrying establishes message and/or Radio Link Detection disappears
Breath, the Radio Link Detection message are that signaling control layer is sent for the radio link failure message that physical layer reports；It loses
Walk judgment module, for according to response message, judge the Radio Link whether step-out, the response message is that the terminal is set
It is standby to be directed to what the target packet returned；As a result reporting module, for reporting the judging result for being directed to radio link failure
To the signaling control layer.
Optionally, the step-out judgment module includes: message judging submodule, for judging the business transport layer
Whether response message is received in one preset time；First determines submodule, if default first for the business transport layer
Response message is received in time, it is determined that the Radio Link is normal；Second determines submodule, if transmitting for the business
Layer does not receive response message in the first preset time, it is determined that the radio link failure.
Optionally, it described second determines submodule, is not connect in the first preset time if being also used to the business transport layer
Response message is received, then whether the number for judging that the business transport layer sends target packet is more than threshold value；When the number
When more than threshold value, the radio link failure is determined；The data transmission blocks are also used to be less than threshold value when the number
When, target packet is sent in the terminal device again；The message judging submodule is specifically used for again by mesh
After mark data packet is sent in the terminal device, judge whether the business transport layer receives in the first preset time
Response message.
Optionally, the device further include: message transmission module is sent for receiving physical layer in signaling control layer
Radio link failure message after, judge whether to only exist wireless signaling carrying between satellite equipment and terminal device；If satellite
Wireless signaling carrying is only existed between equipment and terminal device, then sends the Radio Link Detection message to business transport layer；
And/or after establishing wireless signaling carrying between satellite equipment and terminal device, sent to the business transport layer described wireless
Signaling bear establishes message；Resource release module, if for not being to only exist wireless signaling between satellite equipment and terminal device
Carrying, it is determined that radio link failure, and discharge corresponding network resource.
Optionally, the device further include: result judgment module, for judging signaling control layer in the second preset time
Inside whether receive the judging result；Resource release module, if inscribed in the second preset time for the signaling control layer
The judging result is received, and the judging result is radio link failure, then discharges corresponding network resource；The resource release
Module discharges corresponding net if be also used to the signaling control layer does not receive the judging result in the second preset time
Network resource.
Optionally, the device further include: data judgment module, for judging that the wireless signaling carries corresponding letter
Enable whether data send success；Data retransmission module, if being used for the not sent success of the signaling data, the business transport layer
Retransmit the signaling data；The data transmission blocks are sent successfully if being specifically used for the signaling data, according to predetermined period
The target packet of construction is sent in terminal device.
Optionally, the target packet is constructed according to the corresponding communication protocol of the satellite communication system.
Compared with prior art, the embodiment of the present invention includes following advantages:
The signaling control layer of the embodiment of the present invention is after establishing wireless signaling carrying, and/or receives what physical layer reported
After radio link failure message, corresponding target message is sent to business transport layer；Business transport layer is receiving signaling control
After the target message that layer is sent, target packet is sent in terminal device according to predetermined period, then business transport layer can
Receiving terminal apparatus be directed to the target packet return response message, and then according to the response message judge it is described wirelessly
Link whether step-out；Then it will be reported to the signaling control layer for the judgement of radio link failure, thus business transport layer
Complete the detection to Radio Link.Therefore after the radio link failure message that signaling control layer receives physical layer transmission,
Business transport layer can again detect Radio Link, improve the accuracy of detection；And it is set in terminal device and satellite
After establishing wireless signaling carrying, business transport layer can actively be detected Radio Link, be further improved to wireless
The accuracy of link detecting.
Detailed description of the invention
Fig. 1 is the system structure diagram that a kind of terminal device of the invention is connect with satellite equipment；
Fig. 2 is a kind of step flow chart of chain circuit detecting method embodiment of the invention；
Fig. 3 is the step flow chart of another chain circuit detecting method embodiment of the invention；
Fig. 4 is a kind of schematic diagram of target packet package head format of the invention；
Fig. 5 is a kind of structural block diagram of link detecting Installation practice of the invention；
Fig. 6 is the structural block diagram of another link detecting Installation practice of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
For the ease of the explanation of subsequent embodiment, satellite communication system is introduced: satellite communication system includes satellite
Equipment, earth station and terminal device, when a terminal device is communicated using satellite communication system and another terminal device,
Terminal device connect with satellite equipment and sends data, and the data that satellite equipment sends the terminal device are sent by earth station
Into another terminal device.Wherein, the system structure diagram that terminal device is connect with satellite equipment is as shown in Figure 1, satellite
Equipment includes Communications Processor Module, which includes: core net (Gateway Core Network, GCN), short report
Literary broadcasting center (Cell Broadcast Centre, CBC), control centre, gateway station control (Gateway Station
Controller, GSC) and notice gateway station transceiver (Gateway Transceiver Station, GTS)；Wherein, satellite
Business transport layer and signaling control layer in communication network are located in GSC, and business transport layer is the signaling for transmitting to data
Control layer is for handle to signaling；Physical layer in satellite communication network is located in the GTS.
Referring to Fig. 2, a kind of step flow chart of chain circuit detecting method embodiment of the invention is shown, can specifically include
Following steps:
After step 201, business transport layer receive the target message of signaling control layer transmission, it will be constructed according to predetermined period
Target packet be sent in terminal device.
The business transport layer of the embodiment of the present invention can in several cases detect Radio Link, wherein a kind of feelings
After condition is satellite equipment and terminal device establishes wireless signaling carrying, business transport layer can actively be detected Radio Link；
Another situation is that after reporting radio link failure message on a physical layer, in order to reduce radio link failure that physical layer reports
The false detection rate of message, business transport layer can again detect Radio Link；It certainly is to determine satellite there are also a kind of situation
Equipment and terminal device establish wireless signaling carrying, and after the message of radio link failure that reports of physical layer, business transport layer
Radio Link is detected.When above-mentioned every case occurs, signaling control layer can send corresponding to business transport layer
Message, for the first situation, signaling control layer sends wireless signaling carrying to business transport layer and establishes message；For second
Situation, signaling control layer send Radio Link Detection message to business transport layer；And be directed to the third situation, signaling control layer to
Business transport layer sends wireless signaling carrying and establishes message and Radio Link Detection message.Therefore, the embodiment of the present invention can be by nothing
Line signaling bear establishes message and/or Radio Link Detection message is determined as target message, and business transport layer is receiving signaling
After the target message that control layer is sent, it may be determined that need to detect Radio Link, and enter detecting state；I.e. business is transmitted
The target packet of construction is sent in terminal device by layer according to predetermined period, wherein predetermined period can be set according to demand
Such as 1 second.In the embodiment of the present invention, the target packet can be constructed in advance, can be and opposite end is needed to reply acknowledgement frame
Data packet, for detect Radio Link whether step-out；Optionally, the target packet can be empty data packet.
Step 202, according to response message, judge the Radio Link whether step-out；The response message is the terminal
Equipment is returned for the target packet.
In the embodiment of the present invention, since the target packet can need the data packet of opposite end reply acknowledgement frame for one,
Therefore, after terminal device receives the target packet that business transport layer is sent, terminal device can be directed to the target packet
Corresponding response message is returned to business transport layer, and then business transport layer can judge the radio chains according to the response message
Road whether step-out.Wherein, in the embodiment of the present invention, the step-out of the Radio Link refers to the wireless of terminal device and satellite equipment
Link loses synchronization.
Step 203 will be reported to the signaling control layer for the judging result of radio link failure.
Business transport layer is reported to the signaling after to Radio Link Detection, for the judging result of radio link failure
Control layer, so that signaling control layer is performed corresponding processing according to the judging result.Wherein, the judging result includes wireless
Link is normal and radio link failure.
To sum up, the signaling control layer of the embodiment of the present invention is after establishing wireless signaling carrying, and/or receives in physical layer
After the radio link failure message of report, corresponding target message is sent to business transport layer；Business transport layer is receiving signaling
After the target message that control layer is sent, target packet is sent in terminal device according to predetermined period, then business is transmitted
The receivable terminal device of layer is directed to the response message that the target packet returns, and then according to described in response message judgement
Radio Link whether step-out；Then it will be reported to the signaling control layer for the judgement of radio link failure, so that business passes
Defeated layer completes the detection to Radio Link.Therefore the radio link failure message of physical layer transmission is received in signaling control layer
Afterwards, business transport layer can again detect Radio Link, improve the accuracy of detection；And in terminal device and satellite
After equipment establishes wireless signaling carrying, business transport layer can actively be detected Radio Link, be further improved to nothing
The accuracy of wired link detection.
In another embodiment of the invention, signaling control layer in different situations, can be sent not to business transport layer
Same target message, and business transport layer, after receiving different target message, corresponding processing mode is also different.Correspondingly,
Signaling control layer can also make accordingly when receiving the different judging result of business transport layer for different judging results
Processing.
With reference to Fig. 3, the step flow chart of another chain circuit detecting method embodiment of the invention is shown, specifically can wrap
Include following steps:
After step 301, signaling control layer establish wireless signaling carrying between satellite equipment and terminal device, to the industry
Business transport layer sends the wireless signaling carrying and establishes message.
In the embodiment of the present invention, terminal device needs and satellite when carrying out short message service, all kinds of business such as voice service
Connection is established between equipment, and between terminal device satellite equipment when establishing any connection as carried out short message service foundation
It when SRB, progress voice service when the URB of foundation, is required to establish SRB first, to establish between the two by various signalings
Connection.Signaling control layer determines terminal device and defends after receiving the request for establishing connection of terminal device transmission and response
SRB is established between star equipment；It, can be to radio chains in order to guarantee when only existing SRB between terminal device and satellite equipment
Whether step-out is detected on road, and signaling control layer can send wireless signaling carrying to business transport layer and establish message, so that business
Transport layer detects Radio Link after receiving the wireless signaling carrying and establishing message.
Step 302, after the radio link failure message that signaling control layer receives physical layer transmission, signaling control
Layer judges wireless signaling carrying whether is only existed between satellite equipment and terminal device.
In an example of the invention, terminal device establishes URB when carrying out voice service between satellite equipment,
There are when URB between terminal device and satellite equipment, if URB normal transmission data, physical layer is to link between the two
When detection, it may be determined that Radio Link between the two is in normal condition；But when URB transmission data exception or terminal device
When carrying out short message service, SRB is only established between terminal device and satellite equipment, or under other abnormal scenes, terminal
Equipment can not with set up URB, when only establishing SRB, physical layer can detect that radio link failure.No matter physical layer detects
Radio link failure or Radio Link are normal out, will test result and are sent to signaling control layer.If satellite equipment and terminal
SRB is only existed between equipment, then the radio link failure message that physical layer is sent may be inaccuracy；If satellite equipment and end
There is also URB between end equipment, then the radio link failure message of physical layer transmission is accurate, therefore the signaling control layer
After the radio link failure message for receiving physical layer transmission, it can determine whether only exist between satellite equipment and terminal device
SRB, if so, thening follow the steps 303；If it is not, thening follow the steps 316.
Step 303, signaling control layer send the Radio Link Detection message to business transport layer.
Signaling control layer determines when only existing SRB between satellite equipment and terminal device, can send institute to business transport layer
Radio Link Detection message is stated, so that business transport layer again detects Radio Link.
Step 304, business transport layer receive the target message of signaling control layer transmission.
In the embodiment of the present invention, the target message includes that message and/or Radio Link Detection are established in wireless signaling carrying
Message, message is established in the wireless signaling carrying that business transport layer can receive the transmission of signaling control layer and/or Radio Link Detection disappears
Breath.Specifically, can determine needs pair after message is established in the wireless signaling carrying that business transport layer receives the transmission of signaling control layer
Radio Link is detected, i.e. execution step 305.And when establishing any connection due to terminal device and satellite equipment, first
Need to establish SRB, therefore, under normal circumstances, business transport layer first receives wireless signaling carrying and establishes message, is followed by by nothing
Wired link detects message；Therefore, when business transport layer receives the Radio Link Detection message that signaling control layer is sent, can first sentence
Whether disconnected business transport layer has had received wireless signaling carrying and has established message, if so, business transport layer is wireless to receive
On the basis of the time that signaling bear establishes message, step 307 is executed；If it is not, then business transport layer is to receive Radio Link inspection
It surveys on the basis of the time of message, executes step 307.
Step 305, business transport layer judge that the wireless signaling carries whether corresponding signaling data sends success.
Business transport layer, in order to guarantee that signaling data can be transmitted successfully, can determine whether before detecting to Radio Link
The wireless signaling carries whether corresponding signaling data sends success, if it is not, 306 are thened follow the steps, if so, thening follow the steps
307。
Step 306, business transport layer retransmit the signaling data.
When determining that signaling data is not sent successful, then the business transport layer retransmits the signaling data；Described in re-transmission
After signaling data, then step 305 is executed, can judge again whether the signaling data retransmits success.
The target packet of construction is sent in terminal device by step 307, business transport layer according to predetermined period.
When determining that signaling data is sent successfully, the business transport layer can detect Radio Link, i.e., the described industry
The target packet of construction is sent in terminal device by business transport layer according to predetermined period.In the embodiment of the present invention, the mesh
Marking data packet is constructed according to current satellite communication protocols, there is no need to modify communication protocol, improves detection radio chains
Road whether the efficiency of step-out.In an example of the invention, as shown in figure 4, Fig. 4 shows a kind of target packet of the invention
The form schematic diagram in packet header, in Fig. 4, every a line indicates the data that each bit an of byte carries, i.e. Octet1,
Octet2, Octet3 and Octet4 respectively indicate first character section, second byte, third byte and the 4th byte；Its
In, Payload Type: the type of data packet, UUG: unsolicited uplink allows, and UUG is set to 1 here, indicates terminal
It needs to return confirmation for data packet；RBSN: simplified block sequence number, RBSN (6-2) indicate the 2nd bit-the 6 of simplified block sequence number
Bit, similar, RBSN (1-0) indicates the 1st the-the 0 bit of bit of simplified block sequence number；Reduced Last Part
Size: Reduced Last Part Size is set to 0 here by last block packet size simplified, indicates a new SDU
(Service Data Unit, service data unit)；RLC Data: indicating the payload of upper application layer, and the length of SDU is arranged
It is 0；RRBId: the radio bearer identification of compression, RRBId (2) indicate the 2nd bit of the radio bearer identification of compression, RRBId (1-
0) the 1st the-the 0 bit of bit of the radio bearer identification of compression is indicated；FBI: last packet mark.Target is constructed according to above-mentioned value
The packet header of data packet constructs an empty SDU according to current satellite communication protocols, while needing other side's loopback acknowledgement frame
Data packet.
In another embodiment of the present invention, after terminal device receives the target packet, the number of targets can be directed to
An acknowledgement frame, that is, response message, if the Radio Link between terminal device and satellite equipment is normal, the sound are sent according to packet
Answer message that can be successfully transmitted to business transport layer；If the radio link failure between terminal device and satellite equipment, the sound
Answer message that can not be successfully transmitted to business transport layer；Therefore, business transport layer judges that the Radio Link is according to response message
It is the step of no step-out, specific as follows:
Step 308, business transport layer judge whether it receives response message in the first preset time.
Therefore, the business transport layer can determine whether it receives the response message in the first preset time, described
First preset time is determined such as 1 second as desired, is disappeared if the business transport layer receives the response in the first preset time
Breath, thens follow the steps 309；If the business transport layer does not receive the response message in the first preset time, step is executed
Rapid 310.
Step 309, business transport layer determine that the Radio Link is normal.
When determining that the business transport layer receives the response message in the first preset time, it is determined that the radio chains
Road is normal.
Step 310, business transport layer judge that it sends whether the number of target packet is more than threshold value.
For the embodiment of the present invention in order to improve the accuracy to Radio Link Detection, business transport layer can be repeatedly to terminal device
Target packet is sent, after repeatedly sending target packet, is determined further according to whether business transport layer receives response message
The Radio Link whether step-out.Specifically, determining that the business transport layer do not receive the sound in the first preset time
When answering message, the business transport layer can determine whether that it sends whether the number of target packet is more than threshold value, if so, executing step
Rapid 311；If it is not, thening follow the steps 317.Wherein, the threshold value can be determined such as 3 times according to demand.
Step 311, business transport layer determine the radio link failure.
When the business transport layer determines that it sends the number of target packet more than threshold value, i.e. business transport layer is multiple
After sending target packet to terminal device, response message is not received, at this point, business transport layer can determine that Radio Link loses
Step.
Step 312, business transport layer will be reported to the signaling control layer for the judging result of radio link failure.
After the completion of business transport layer is for the judgement of radio link failure, judging result is reported to signaling control layer, into
And signaling control layer is performed corresponding processing according to the judging result.
Step 313, signaling control layer judge whether it receives the judging result in the second preset time.
After business transport layer reports the judging result, signaling control layer is likely to be received the judging result, it is also possible to
The judging result can not be received；Therefore, whether signaling control layer can receive in the second preset time described according to it
Judging result determines corresponding processing operation.The i.e. described signaling control layer judges whether it receives in the second preset time
The judging result, if so, thening follow the steps 314；If it is not, thening follow the steps 316.Wherein, the second preset time can be according to need
Ask setting such as 2 seconds.
Step 314, signaling control layer judge whether the judging result is radio link failure.
If signaling control layer receives the judging result in the second preset time, signaling control layer can be according to sentencing
Disconnected result determines the processing operation needed to be implemented；Specifically, judging whether the judging result is radio link failure, if described
Judging result is radio link failure, it is determined that the Radio Link is abnormal, thens follow the steps 316；If the judging result is not
It is radio link failure, it is determined that Radio Link is normal, executes step 315.
Step 315, signaling control layer keep the connection of the Radio Link between satellite equipment and terminal device.
It is when signaling control layer determines that judging result is that Radio Link is normal, then any without being carried out for the Radio Link
Processing, i.e., the connection of the Radio Link between holding satellite equipment and terminal device.
Step 316, signaling control layer determine radio link failure, and discharge corresponding network resource.
When signaling control layer determines radio link failure, the corresponding Internet resources of the Radio Link can be discharged, with
Save the Internet resources in satellite communication system.In the embodiment of the present invention, in several cases, signaling control layer be can determine wirelessly
Link step-out；Wherein, a kind of situation is after signaling control layer receives the radio link failure message of physical layer transmission, to determine
There is also URB between satellite equipment and terminal device, that is, determine i.e. between terminal device and satellite equipment there is more than when SRB,
It can determine radio link failure.Another situation is that when signaling control layer does not receive judging result in the second preset time,
It can determine radio link failure.It is that signaling receives judging result in the second preset time, and judges knot there are also a kind of situation
Fruit is radio link failure, then can determine radio link failure.
Step 317, business transport layer send target packet to terminal device again.
When the number for determining business transport layer transmission target packet is less than threshold value, then business transport layer is again to terminal
Equipment sends target packet, then executes step 308 again.
In the embodiment of the present invention, after determining that business transport layer does not receive response message in the first preset time,
Whether the number for judging that operation layer sends target packet is more than threshold value, if being more than, it is determined that radio link failure, if not surpassing
It crosses, then target packet is sent in terminal device again, and judge that business transport layer does not receive in the first preset time
To response message；I.e. business transport layer determines radio chains when not receiving response message after repeatedly sending target packet
Road step-out, to further increase the accuracy of Radio Link Detection.In addition, business transport layer send target packet it
Before, if the corresponding signaling data of SRB is to send successfully, business transport layer retransmits the signaling data, to guarantee the signaling
The Successful transmissions of data.Wherein, the target packet is constructed according to present satellites communication protocol, without introducing other associations
View, improves the detection efficiency of Radio Link.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 5, a kind of structural block diagram of link detecting Installation practice of the present invention is shown, the device includes:
Data transmission blocks 501, step-out judgment module 502 and result reporting module 503, wherein
Data transmission blocks 501, after the target message for receiving the transmission of signaling control layer, according to predetermined period by structure
The target packet made is sent in terminal device, wherein the target message include wireless signaling carrying establish message and/or
Radio Link Detection message, the Radio Link Detection message are the radio link failures that signaling control layer is directed to that physical layer reports
What message was sent；
Step-out judgment module 502, for according to response message, judge the Radio Link whether step-out, the response disappears
Breath is that the terminal device is returned for the target packet；
As a result reporting module 503, for the judging result for being directed to radio link failure to be reported to the signaling control layer.
Referring to Fig. 6, the structural block diagram of another link detecting Installation practice of the invention is shown；Of the invention another
In embodiment, the device further include: message transmission module 504, resource release module 505, result judgment module 506, number
It is judged that module 507 and data retransmission module 508, wherein
Message transmission module 504, for signaling control layer receive physical layer transmission radio link failure message after,
Judge wireless signaling carrying whether is only existed between satellite equipment and terminal device；If only being deposited between satellite equipment and terminal device
It is carried in wireless signaling, then sends the Radio Link Detection message to business transport layer；And/or in satellite equipment and terminal
After establishing wireless signaling carrying between equipment, the wireless signaling carrying is sent to the business transport layer and establishes message.
Resource release module 505, if for not being to only exist wireless signaling carrying between satellite equipment and terminal device,
It determines radio link failure, and discharges corresponding network resource.
As a result judgment module 506, for judging whether signaling control layer receives the judgement in the second preset time
As a result.
Data judgment module 507, for judging that the wireless signaling carries whether corresponding signaling data sends success.
Data retransmission module 508, if being used for the not sent success of the signaling data, described in the business transport layer re-transmission
Signaling data.
In another embodiment of the invention, resource release module 505, if default second for the signaling control layer
The judging result is received in time, and the judging result is radio link failure, then discharges corresponding network resource；And
If be also used to the signaling control layer does not receive the judging result in the second preset time, corresponding network money is discharged
Source.
In another embodiment of the invention, the step-out judgment module 502 includes: message judging submodule 5021,
One determines that submodule 5022 and second determines submodule 5023, wherein
Message judging submodule 5021, for judging whether the business transport layer receives sound in the first preset time
Answer message；
First determines submodule 5022, disappears if receiving response in the first preset time for the business transport layer
Breath, it is determined that the Radio Link is normal；
Second determines submodule 5023, disappears if not receiving response in the first preset time for the business transport layer
Breath, it is determined that the radio link failure；Described second determines submodule 5023, if being also used to the business transport layer first
Response message is not received in preset time, then whether the number for judging that the business transport layer sends target packet is more than threshold
Value；When the number is more than threshold value, the radio link failure is determined.
Wherein, the message judging submodule 5021, specifically for target packet is being sent to the terminal again
After in equipment, judge whether the business transport layer receives response message in the first preset time.
In the embodiment of the present invention, the data transmission blocks 501 send successfully if being specifically used for the signaling data, press
The target packet of construction is sent in terminal device according to predetermined period；The data transmission blocks 501 are also used to when described
When number is less than threshold value, target packet is sent in the terminal device again；Wherein, the target packet be according to
According to the corresponding communication protocol construction of the satellite communication system.
The signaling control layer of the embodiment of the present invention is after establishing wireless signaling carrying, and/or receives what physical layer reported
After radio link failure message, corresponding target message is sent to business transport layer；Business transport layer is receiving signaling control
After the target message that layer is sent, target packet is sent in terminal device according to predetermined period, then business transport layer can
Receiving terminal apparatus be directed to the target packet return response message, and then according to the response message judge it is described wirelessly
Link whether step-out；Then it will be reported to the signaling control layer for the judgement of radio link failure, thus business transport layer
Complete the detection to Radio Link.Therefore after the radio link failure message that signaling control layer receives physical layer transmission,
Business transport layer can again detect Radio Link, improve the accuracy of detection；And it is set in terminal device and satellite
After establishing wireless signaling carrying, business transport layer can actively be detected Radio Link, be further improved to wireless
The accuracy of link detecting.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above to a kind of chain circuit detecting method provided by the present invention and a kind of link detecting device, detailed Jie has been carried out
It continues, used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only
It is to be used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to this hair
Bright thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not manage
Solution is limitation of the present invention.
Claims (14)
1. a kind of chain circuit detecting method, which is characterized in that be applied in satellite communication system, the method includes:
After business transport layer receives the target message of signaling control layer transmission, according to predetermined period by the target packet of construction
It is sent in terminal device, wherein the target message includes that wireless signaling carrying establishes message and/or Radio Link Detection disappears
Breath, the Radio Link Detection message are that signaling control layer is sent for the radio link failure message that physical layer reports；
According to response message, judge the Radio Link whether step-out, the response message is the terminal device for described
What target packet returned；
The signaling control layer will be reported to for the judging result of radio link failure.
2. the method according to claim 1, wherein judging whether the Radio Link loses according to response message
The step of step, comprising:
Judge whether the business transport layer receives response message in the first preset time；
If the business transport layer receives response message in the first preset time, it is determined that the Radio Link is normal；
If the business transport layer does not receive response message in the first preset time, it is determined that the radio link failure.
3. according to the method described in claim 2, it is characterized in that, being gone back before the step of determining the radio link failure
Include:
Whether the number for judging that the business transport layer sends target packet is more than threshold value；
If the number is more than threshold value, the step of determining the radio link failure is executed；
If the number is less than threshold value, target packet is sent in the terminal device again, and executes and judges institute
The step of whether business transport layer receives response message in the first preset time stated.
4. the method according to claim 1, wherein receiving the mesh of signaling control layer transmission in business transport layer
Before the step of marking message, further includes:
After the radio link failure message that signaling control layer receives physical layer transmission, the signaling control layer judges that satellite is set
It is standby that wireless signaling carrying whether is only existed between terminal device；If only existing wireless signaling between satellite equipment and terminal device
Carrying, then signaling control layer sends the Radio Link Detection message to business transport layer；If satellite equipment and terminal device it
Between be not only exist wireless signaling carrying, then the signaling control layer determines radio link failure, and discharges corresponding network resource；
And/or
After signaling control layer establishes wireless signaling carrying between satellite equipment and terminal device, sent to the business transport layer
Message is established in the wireless signaling carrying.
5. the method according to claim 1, wherein the testing result is reported to the signaling control layer
The step of after, further includes:
The signaling control layer judges whether it receives the judging result in the second preset time；
If the signaling control layer receives the judging result in the second preset time, and the judging result is radio chains
Road step-out then discharges corresponding network resource；
If the signaling control layer does not receive the judging result, the release corresponding network money in the second preset time
Source.
6. the method according to claim 1, wherein the target packet of construction is sent according to predetermined period
Before step into terminal device, further includes:
Business transport layer judges that the wireless signaling carries whether corresponding signaling data sends success；
If not sent success, the business transport layer retransmits the signaling data；
If sending successfully, the target packet of construction is sent to the step in terminal device according to predetermined period by execution.
7. -6 any method according to claim 1, which is characterized in that the target packet is logical according to the satellite
The corresponding communication protocol construction of letter system.
8. a kind of link detecting device, which is characterized in that be applied in satellite equipment, described device includes:
Data transmission blocks, after the target message for receiving the transmission of signaling control layer, according to predetermined period by the mesh of construction
Mark data packet is sent in terminal device, wherein the target message includes that message and/or radio chains are established in wireless signaling carrying
Message is detected on road, and the Radio Link Detection message is the radio link failure message hair that signaling control layer is reported for physical layer
It send；
Step-out judgment module, for according to response message, judge the Radio Link whether step-out, the response message is described
Terminal device is returned for the target packet；
As a result reporting module, for the judging result for being directed to radio link failure to be reported to the signaling control layer.
9. device according to claim 8, which is characterized in that the step-out judgment module includes:
Message judging submodule, for judging whether the business transport layer receives response message in the first preset time；
First determines submodule, if receiving response message in the first preset time for the business transport layer, it is determined that
The Radio Link is normal；
Second determines submodule, if not receiving response message in the first preset time for the business transport layer, really
The fixed radio link failure.
10. device according to claim 9, which is characterized in that
Described second determines submodule, disappears if being also used to the business transport layer and not receiving response in the first preset time
Breath, then whether the number for judging that the business transport layer sends target packet is more than threshold value；When the number is more than threshold value,
Determine the radio link failure；
The data transmission blocks are also used to when the number is less than threshold value, are again sent to target packet described
In terminal device；
The message judging submodule, specifically for sentencing after target packet is sent in the terminal device again
Whether the business transport layer of breaking receives response message in the first preset time.
11. device according to claim 8, which is characterized in that further include:
Message transmission module, for after the radio link failure message that signaling control layer receives physical layer transmission, judgement to be defended
Whether wireless signaling carrying is only existed between star equipment and terminal device；If being only existed between satellite equipment and terminal device wireless
Signaling bear then sends the Radio Link Detection message to business transport layer；And/or satellite equipment and terminal device it
Between establish wireless signaling carrying after, send wireless signaling carrying to the business transport layer and establish message；
Resource release module, if for not being to only exist wireless signaling carrying between satellite equipment and terminal device, it is determined that nothing
Wired link step-out, and discharge corresponding network resource.
12. device according to claim 8, which is characterized in that further include:
As a result judgment module, for judging whether signaling control layer receives the judging result in the second preset time；
Resource release module, if receiving the judging result, and institute in the second preset time for the signaling control layer
Stating judging result is radio link failure, then discharges corresponding network resource；
The resource release module, if be also used to the signaling control layer does not receive the judgement knot in the second preset time
Fruit then discharges corresponding network resource.
13. device according to claim 8, which is characterized in that further include:
Data judgment module, for judging that the wireless signaling carries whether corresponding signaling data sends success；
Data retransmission module, if being used for the not sent success of the signaling data, the business transport layer retransmits the signaling number
According to；
The data transmission blocks are sent successfully if being specifically used for the signaling data, according to predetermined period by the target of construction
Data packet is sent in terminal device.
14. according to any device of claim 8-13, which is characterized in that the target packet is according to the satellite
The corresponding communication protocol construction of communication system.
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