CN107889270A - The method, apparatus and system of a kind of Stochastic accessing - Google Patents
The method, apparatus and system of a kind of Stochastic accessing Download PDFInfo
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- CN107889270A CN107889270A CN201610873089.1A CN201610873089A CN107889270A CN 107889270 A CN107889270 A CN 107889270A CN 201610873089 A CN201610873089 A CN 201610873089A CN 107889270 A CN107889270 A CN 107889270A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 81
- 238000001514 detection method Methods 0.000 claims abstract description 76
- 238000012360 testing method Methods 0.000 claims abstract description 34
- 230000004044 response Effects 0.000 claims abstract description 22
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- 230000000977 initiatory effect Effects 0.000 description 5
- 230000006855 networking Effects 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/0858—Random access procedures, e.g. with 4-step access with collision treatment collision detection
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Abstract
The invention discloses a kind of method and device of Stochastic accessing.This method includes：Multiple transmission nodes with identical ID carry out Stochastic accessing detection on public random access resource, testing result is reported public control node by the multiple transmission node with identical ID, the public control node carries out multi-mobile-terminal access detection according to reported result, and selects optimal transmission node to carry out replying accidental access response RAR message to complete random access procedure for request access mobile terminal.This method allows the mobile terminal of the identical random access sequence of multiple selections to be accessed simultaneously, and add mobile terminal is successfully accessed probability.
Description
Technical field
The present embodiments relate to the method, apparatus and system of the technical field of communication, more particularly to a kind of Stochastic accessing.
Background technology
At present, generally use cellular network architecture in the mobile communication network, if being by the region division of the network coverage
Dry cellular cell, each cell have the Physical Cell Identifier information (Identification, ID) of oneself, different minizones
Identical networking or inter-frequency networking can be used.In this case, mobile device (User Equipment, UE) can pass through
The reference signal for measuring different districts receives energy (reference signal receive power, RSRP) or with reference to letter
Number quality of reception (reference signal receive quality, RSRQ) selects different cells to be accessed.Each
Cell possesses different random access resource ponds, can so avoid the random access collision between different districts.
But with the development of mobile communication, higher frequency range is used for mobile communication, such as highest can exceed 100GHz,
Signal under high band has bigger decline, it is easier to influence is blocked by barrier, therefore it is usual when networking
The network construction form of super-intensive can be taken, i.e., can be than existing group using the number of base stations of high band networking in identical region
Net mode is more a lot, if still using existing mode, each sending node possesses different physics ID, and that so brings asks
Topic is to cause frequently cell switching when UE is in movement, can bring substantial amounts of signaling consumption, while need UE to carry out
Frequently minizone measures, and causes UE power attenuation larger.
Therefore, in the network of high band, preferably selection is that the transmission node defined within the scope of one has identical
Cell ID, or super cell ID, cutting for high-rise participation need not be carried out when UE is moved in the range of super cell ID
Change, avoid the frequently expense of measurement and signaling.
The content of the invention
The purpose of the embodiment of the present invention is to propose a kind of method and device of Stochastic accessing, it is intended to how super small solves
The purpose of Stochastic accessing is realized under area.
To use following technical scheme up to this purpose, the embodiment of the present invention：
In a first aspect, a kind of method of Stochastic accessing, methods described include：
Multiple transmission nodes with identical ID carry out Stochastic accessing detection on public random access resource；
Testing result is reported public control node by the multiple transmission node with identical ID；
The public control node Master nodes carry out multi-mobile-terminal access detection according to reported result, and are request
Access mobile terminal selection optimal transmission node carries out replying accidental access response RAR message to complete random access procedure.
Preferably, the multiple transmission node with identical ID carries out Stochastic accessing on public random access resource
Detection, including：
The multiple transmission node with identical ID carries out Stochastic accessing detection on public random access resource, inspection
It is the information that can be obtained by accidental access signal to survey result, and described information includes sequence corresponding to the accidental access signal
Number, the energy of peak value and position etc..
Preferably, the multiple transmission node with identical ID carries out Stochastic accessing on public random access resource
After detection, in addition to：
If the testing result that the multiple transmission node with identical ID reports includes peak energy and the position of sequence,
Then the multiple transmission node with identical ID judges peak value according to default threshold T hreshhold_power；
If some sample value determines more than Threshhold_power, the multiple transmission node with identical ID
It is otherwise invalid peak value for effective peak；
If the number of the effective peak may be more than one, if two effective peak intervals are less than pre-determined threshold d,
Then the multiple transmission node with identical ID removes the less peak value of energy, or merging turns into other way
One effective peak.
Preferably, methods described also includes：
If the transmission node with identical ID does not detect effective information, the transmission section with identical ID
Point reports without testing result.
Preferably, the Master nodes carry out multi-mobile-terminal access detection according to reported result, including：
The testing result and its priori to network that the Master nodes report according to the transmission node with identical ID
Information carries out multi-mobile-terminal detection；Wherein, the prior information includes the geographical location information of multiple transmission nodes.
Preferably, the public control node Master nodes carry out multi-mobile-terminal access detection according to reported result,
Including：
Master nodes mobile terminal position described in two effective peak position acquisitions according to corresponding to two TRP difference
Put curve.
Preferably, Master nodes shifting described in two effective peak position acquisitions according to corresponding to two TRP difference
Dynamic terminal location curve, including：
If range difference is d12 between TRP1 and TRP2, the Master nodes obtain UE positions for it is hyp wherein
On one, the hyperbola is obtained by the distance between the TRP1 and the TRP2 and the d12.
Preferably, the public control node Master nodes carry out multi-mobile-terminal access detection according to reported result,
Including：
It is position in plane that the Master nodes obtain UE positions according to three TRP.
Preferably, the public control node Master nodes carry out multi-mobile-terminal access detection according to reported result,
Including：
If there are M bar curves simultaneously in area size S, it is determined that the region is effective mobile terminal locations；
If there are multiple regions, it is determined that there are multiple mobile terminals to initiate random access request；
If there is not the region, it is determined that only a mobile terminal initiates the random access request.
Preferably, the Master nodes for request access mobile terminal selection optimal transmission node reply and connect at random
Enter to respond RAR message to complete random access procedure, including：
The Master nodes select optimal T RP to carry out accidental access response for each mobile terminal detected
RAR is replied.
Preferably, the Master nodes for request access mobile terminal selection optimal transmission node reply and connect at random
Enter to respond RAR message to complete random access procedure, including：
If the Master nodes are the TRP that the multiple mobile terminal selects identical RAR to reply, and in the RAR
Middle carrying customizing messages is indicated, so that the UE continues in specific window search in the case where being not successfully received MSG4
The RAR, and continue identical access procedure.
Preferably, methods described also includes：
If the mobile terminal for carrying out Stochastic accessing detects multiple RAR, the Master nodes selection signal quality is most
A good RAR, and carry out ensuing random access procedure.
Second aspect, a kind of device of Stochastic accessing, described device include：
Detection module, for carrying out Stochastic accessing detection on public random access resource；
Reporting module, for testing result to be reported into public control node；
AM access module, for carrying out multi-mobile-terminal access detection according to reported result, and it is request access mobile terminal
Selection optimal transmission node carries out replying accidental access response RAR message to complete random access procedure.
Preferably, the detection module, is used for：
Stochastic accessing detection is carried out on public random access resource, testing result is that can be obtained by accidental access signal
The information taken, described information include sequence number, the energy of peak value and position etc. corresponding to the accidental access signal.
Preferably, described device also includes：
Judge module, for being carried out in multiple transmission nodes with identical ID on public random access resource at random
After access detection, if peak energy of the testing result that reports of the multiple transmission node with identical ID comprising sequence and
Position, then peak value is judged according to default threshold T hreshhold_power；If some sample value is more than Threshhold_
Power, it is determined that be effective peak, be otherwise invalid peak value；If the number of the effective peak may be more than one, if
Two effective peak intervals are less than pre-determined threshold d, then remove the less peak value of energy, or be merged into other way
For an effective peak.
Preferably, described device also includes：
Processing module, if not detecting effective information for the transmission node with identical ID, without inspection
Result is surveyed to report.
Preferably, the AM access module, is specifically used for：
The testing result that is reported according to the transmission node with identical ID and its prior information of network is moved more
Terminal detects, wherein, the prior information includes the geographical location information of multiple transmission nodes.
Preferably, the AM access module, also particularly useful for：
According to mobile terminal locations curve described in two effective peak position acquisitions corresponding to two TRP difference.
Preferably, the AM access module, also particularly useful for：
If range difference is d12 between TRP1 and TRP2, the Master nodes obtain UE positions for it is hyp wherein
On one, the hyperbola is obtained by the distance between the TRP1 and the TRP2 and the d12.
Preferably, the AM access module, also particularly useful for：
It is position in plane to obtain UE positions according to three TRP.
Preferably, the AM access module, also particularly useful for：
If there are M bar curves simultaneously in area size S, it is determined that the region is effective mobile terminal locations；
If there are multiple regions, it is determined that there are multiple mobile terminals to initiate random access request；
If there is not the region, it is determined that only a mobile terminal initiates the random access request.
Preferably, the AM access module, also particularly useful for：
Optimal T RP is selected to carry out accidental access response RAR replies for each mobile terminal detected.
Preferably, the AM access module, also particularly useful for：
If the Master nodes are the TRP that the multiple mobile terminal selects identical RAR to reply, in the RAR
Middle carrying customizing messages is indicated, so that the UE continues in specific window search in the case where being not successfully received MSG4
The RAR, and continue identical access procedure.
Preferably, the AM access module, also particularly useful for：
If the mobile terminal for carrying out Stochastic accessing detects multiple RAR, the Master nodes selection signal quality is most
A good RAR, and carry out ensuing random access procedure.
The embodiment of the present invention provides a kind of method and device of Stochastic accessing.This method includes：It is multiple to have identical ID's
Transmission node carries out Stochastic accessing detection on public random access resource；The multiple transmission node with identical ID will
Testing result reports public control node；The public control node Master nodes carry out how mobile whole according to reported result
Terminate into detection, and for request access mobile terminal select optimal transmission node carry out reply accidental access response RAR message with
Complete random access procedure.So as to realize a kind of random access scheme under super cell, by the institute of super cell scope
There is transmission node to possess identical ID, therefore its synchronization for sending and broadcast singal are just as, and also imply that UE is random
Access-in resource is also identical, and in this case, when a UE initiates Stochastic accessing, multiple nodes can all be connect at random
Enter the detection of signal.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the method for Stochastic accessing provided in an embodiment of the present invention；
Fig. 2 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention；
Fig. 3 is a kind of detection RAR provided in an embodiment of the present invention schematic diagram；
Fig. 4 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention；
Fig. 5 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention；
Fig. 6 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention；
Fig. 7 is a kind of schematic diagram of acquisition UE positions provided in an embodiment of the present invention；
Fig. 8 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention；
Fig. 9 is a kind of schematic diagram of Stochastic accessing provided in an embodiment of the present invention；
Figure 10 is a kind of high-level schematic functional block diagram of the device of Stochastic accessing provided in an embodiment of the present invention；
Figure 11 is the high-level schematic functional block diagram of the device of another Stochastic accessing provided in an embodiment of the present invention；
Figure 12 is a kind of structural representation of the system of Stochastic accessing provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the embodiment of the present invention, rather than the restriction to the embodiment of the present invention.In addition also
It should be noted that for the ease of describing, the part related to the embodiment of the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
With reference to figure 1, Fig. 1 is a kind of schematic flow sheet of the method for Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 1, the method for the Stochastic accessing includes：
Step 101, multiple transmission nodes with identical ID carry out Stochastic accessing inspection on public random access resource
Survey；
Preferably, the multiple transmission node with identical ID carries out Stochastic accessing on public random access resource
Detection, including：
The multiple transmission node with identical ID carries out Stochastic accessing detection on public random access resource, inspection
It is the information that can be obtained by accidental access signal to survey result, and described information includes sequence corresponding to the accidental access signal
Number, the energy of peak value and position etc..
Preferably, the multiple transmission node with identical ID carries out Stochastic accessing on public random access resource
After detection, in addition to：
If the testing result that the multiple transmission node with identical ID reports includes peak energy and the position of sequence,
Then the multiple transmission node with identical ID judges peak value according to default threshold T hreshhold_power；
If some sample value determines more than Threshhold_power, the multiple transmission node with identical ID
It is otherwise invalid peak value for effective peak；
If the number of the effective peak may be more than one, if two effective peak intervals are less than pre-determined threshold d,
Then the multiple transmission node with identical ID removes the less peak value of energy, or merging turns into other way
One effective peak.
Preferably, methods described also includes：
If the transmission node with identical ID does not detect effective information, the transmission section with identical ID
Point reports without testing result.
Step 102, testing result is reported public control node by the multiple transmission node with identical ID；
Step 103, the public control node Master nodes carry out multi-mobile-terminal access detection according to reported result,
And optimal transmission node is selected to carry out replying accidental access response RAR message to complete Stochastic accessing for request access mobile terminal
Process.
Preferably, the Master nodes carry out multi-mobile-terminal access detection according to reported result, including：
The testing result and its priori to network that the Master nodes report according to the transmission node with identical ID
Information carries out multi-mobile-terminal detection；Wherein, the prior information includes the geographical location information of multiple transmission nodes.
Preferably, the public control node Master nodes carry out multi-mobile-terminal access detection according to reported result,
Including：
Master nodes mobile terminal position described in two effective peak position acquisitions according to corresponding to two TRP difference
Put curve.
Preferably, Master nodes shifting described in two effective peak position acquisitions according to corresponding to two TRP difference
Dynamic terminal location curve, including：
If range difference is d12 between TRP1 and TRP2, the Master nodes obtain UE positions for it is hyp wherein
On one, the hyperbola is obtained by the distance between the TRP1 and the TRP2 and the d12.
Preferably, the public control node Master nodes carry out multi-mobile-terminal access detection according to reported result,
Including：
It is position in plane that the Master nodes obtain UE positions according to three TRP.
Preferably, the public control node Master nodes carry out multi-mobile-terminal access detection according to reported result,
Including：
If there are M bar curves simultaneously in area size S, it is determined that the region is effective mobile terminal locations；
If there are multiple regions, it is determined that there are multiple mobile terminals to initiate random access request；
If there is not the region, it is determined that only a mobile terminal initiates the random access request.
Preferably, the Master nodes for request access mobile terminal selection optimal transmission node reply and connect at random
Enter to respond RAR message to complete random access procedure, including：
The Master nodes select optimal T RP to carry out accidental access response for each mobile terminal detected
RAR is replied.
Preferably, the Master nodes for request access mobile terminal selection optimal transmission node reply and connect at random
Enter to respond RAR message to complete random access procedure, including：
If the Master nodes are the TRP that the multiple mobile terminal selects identical RAR to reply, and in the RAR
Middle carrying customizing messages is indicated, so that the UE continues in specific window search in the case where being not successfully received MSG4
The RAR, and continue identical access procedure.
Preferably, methods described also includes：
If the mobile terminal for carrying out Stochastic accessing detects multiple RAR, the Master nodes selection signal quality is most
A good RAR, and carry out ensuing random access procedure.
The embodiment of the present invention provides a kind of method of Stochastic accessing.This method includes：Multiple transmission sections with identical ID
Point carries out Stochastic accessing detection on public random access resource；The multiple transmission node with identical ID will be detected and tied
Fruit reports public control node；The public control node Master nodes carry out multi-mobile-terminal access according to reported result
Detection, and for request access mobile terminal select optimal transmission node carry out reply accidental access response RAR message with complete with
Machine access procedure.So as to realize a kind of random access scheme under super cell, due to all transmission of super cell scope
Node possesses identical ID, therefore its synchronization for sending and broadcast singal are just as, and also imply that UE Stochastic accessings provide
Source is also identical, and in this case, when a UE initiates Stochastic accessing, multiple nodes can all carry out accidental access signal
Detection.
With reference to figure 2, Fig. 2 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention.
As shown in Fig. 2 methods described includes：
Step 201, at least one mobile terminal UE is randomly choosed on random access resource and connect when initiating Stochastic accessing
Enter sequence, and initiate Stochastic accessing, to cause at least one TRP to carry out signal detection to the random access resource, and will inspection
Survey result and report master nodes, the Master nodes are that each UE selects TRP to be connect at random according to the UE information
Enter to respond RAR replies, at least one TRP shares the random access resource；
Specifically, assume that N number of transmission node (Transmission and reception point, TRP) is shared random
Access-in resource, N number of transmission node are connected to a master node, and master nodes are logical node, you can think independent section
Point or a logic function being built in some TRP.Shared random access resource is：The random of all TRP connects
Enter time-frequency location, the random access sequence all same of resource.
Step 202, the UE detects RAR in RAR windows, if detecting at least one RAR, the UE selection signals
The RAR that quality exceedes preset signals quality threshold sends MSG3 information, if to cause the TRP of selection is properly received the MSG3 to believe
Breath, then the TRP of the selection is defined as being successfully accessed, and replys MSG4.
Specifically, as shown in figure 3, Fig. 3 is a kind of detection RAR provided in an embodiment of the present invention schematic diagram.Selected
TRP initiates RAR, and the UE of the random access sequence of transmission detects RAR in RAR windows, and UE may detect that multiple RAR, UE choosings
Select the preferable RAR of signal quality and carry out MSG3 (Message3, the 3rd message in random access procedure) response.
With reference to figure 4, Fig. 4 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 4, methods described includes：
Step 401, at least one mobile terminal UE is randomly choosed on random access resource and connect when initiating Stochastic accessing
Enter sequence, and initiate Stochastic accessing, to cause at least one TRP to carry out signal detection to the random access resource, and will inspection
Survey result and report master nodes, the Master nodes are that each UE selects TRP to be connect at random according to the UE information
Enter to respond RAR replies, at least one TRP shares the random access resource；
Step 402, the UE detects RAR in RAR windows, if detecting at least one RAR, the UE selection signals
The RAR that quality exceedes preset signals quality threshold sends MSG3 information, if to cause the TRP of selection is properly received the MSG3 to believe
Breath, then the TRP of the selection is defined as being successfully accessed, and replys MSG4；
Step 403, if the UE is not defined as being initially accessed mistake in MSG4 windows detecting to the MSG4, the UE
Lose, and the RAR is detected in the MSG4 windows, if detecting the RAR, continue Stochastic accessing.
With reference to figure 5, Fig. 5 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 5, methods described includes：
Step 501, at least one mobile terminal UE is randomly choosed on random access resource and connect when initiating Stochastic accessing
Enter sequence, and initiate Stochastic accessing, to cause at least one TRP to carry out signal detection to the random access resource, and will inspection
Survey result and report master nodes, the Master nodes are that each UE selects TRP to be connect at random according to the UE information
Enter to respond RAR replies, at least one TRP shares the random access resource；
Step 502, the UE detects RAR in RAR windows, if detecting at least one RAR, the UE selection signals
The RAR that quality exceedes preset signals quality threshold sends MSG3 information, if to cause the TRP of selection is properly received the MSG3 to believe
Breath, then the TRP of the selection is defined as being successfully accessed, and replys MSG4；
Step 503, the UE detects the RAR in the MSG4 windows.
Preferably, the UE detects the RAR in the MSG4 windows, including：
The UE detects the RAR by TRP configuration in the window of the MSG4.
Wherein, the UE detects the RAR by TRP configuration in the window of the MSG4, including：
The UE carries configured information in initial RAR, and the configured information is used to indicate whether the UE needs
Continue to detect new RAR after the failure of the windows detectings of MSG 4.
With reference to figure 6, Fig. 6 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention.
As shown in fig. 6, methods described includes：
Step 601, at least one TRP receives the Stochastic accessing that mobile terminal UE is initiated on random access resource, and right
The random access resource carries out signal detection, testing result is reported into master nodes, at least one TRP shares institute
State random access resource；
Preferably, at least one TRP carries out signal detection to the random access resource, including：
At least one TRP carries out the detection of signal peak and/or the access sequence to the random access resource
The detection of sequence number.
Preferably, at least one TRP carries out the detection of signal peak to the random access resource, including：
If detecting the sample value more than predetermined threshold value, at least one TRP determines to detect limited peak value, no
Then at least one TRP is defined as invalid peak value；
If the number of the limited peak value detected is more than one, and two effective peak intervals are less than predetermined interval thresholding,
Then at least one TRP deletes the small effective peak of energy, or at least one TRP is merged into one according to preset algorithm
Individual effective peak.
Step 602, the Master nodes obtain the UE information of access according to the testing result；
Specifically, as shown in fig. 7, Fig. 7 is a kind of schematic diagram of acquisition UE positions provided in an embodiment of the present invention.To any
Position corresponding to two TRP any two effective peak (or the time offset received) determines UE position curve, such as Fig. 7
It is shown, it is assumed that range difference is d12 between TRP1 and TRP2, then the UE positions of its determination be hyp wherein one on, if
Respectively by 3 TRP, position in plane, i.e., the intersection point of three curves can be determined in the ideal case.
Preferably, the Master nodes obtain the UE information of access according to the testing result, including：
Master nodes mobile terminal position described in two effective peak position acquisitions according to corresponding to two TRP difference
Put curve.
Preferably, Master nodes shifting described in two effective peak position acquisitions according to corresponding to two TRP difference
Dynamic terminal location curve, including：
If range difference is d12 between TRP1 and TRP2, the Master nodes obtain UE positions for it is hyp wherein
On one.
Preferably, the Master nodes obtain the UE information of access according to the testing result, including：
It is position in plane that the Master nodes obtain UE positions according to three TRP.
Specifically, judging UE active position, setting judges area size S, if meeting in the region of S sizes while having
More than M bar curves exist, then it is assumed that the region is effective UE positions, and M values are default, and M ＞=3, S regions can be one and preset
The circle of radius.
If find multiple, then it is assumed that there are multiple UE to initiate Stochastic accessing；
If do not meet situation, then it is assumed that an only UE has initiated Stochastic accessing.
Preferably, the Master nodes obtain the UE information of access according to the testing result, including：
If there are M bar curves simultaneously in area size S, it is determined that the region is effective mobile terminal locations；
If there are multiple regions, it is determined that there are multiple mobile terminals to initiate random access request；
If there is not the region, it is determined that only a mobile terminal initiates the random access request.
Step 703, the Master nodes are that each UE selects TRP to carry out accidental access response according to the UE information
RAR is replied, to cause the UE to detect RAR in RAR windows, if detecting at least one RAR, and the UE selection signals matter
Amount sends MSG3 information more than the RAR of preset signals quality threshold；
Preferably, the Master nodes are that each UE selects accidental access response RAR to be returned according to the UE information
It is multiple, including：
The Master nodes selection receives the TRP that accidental access signal energy is maximum corresponding to the mobile terminal and carried out
RAR is replied.
Preferably, the Master nodes selection receives accidental access signal energy maximum corresponding to the mobile terminal
TRP carries out RAR replies, including：
If the Master nodes are that the TRP of multiple UE selections is identical, RAR replies are only carried out by the TRP of selection.
Step 704, if the TRP of selection is properly received the MSG3 information, the TRP of the selection be defined as access into
Work(, and reply MSG4.
With reference to figure 8, Fig. 8 is the schematic flow sheet of the method for another Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 8, methods described includes：
Step 801, at least one TRP receives the Stochastic accessing that mobile terminal UE is initiated on random access resource, and right
The random access resource carries out signal detection, testing result is reported into master nodes, at least one TRP shares institute
State random access resource；
Step 802, the Master nodes obtain the UE information of access according to the testing result；
Step 803, the Master nodes are that each UE selects TRP to carry out accidental access response according to the UE information
RAR is replied, to cause the UE to detect RAR in RAR windows, if detecting at least one RAR, and the UE selection signals matter
Amount sends MSG3 information more than the RAR of preset signals quality threshold；
Step 804, if the TRP of selection is properly received the MSG3 information, the TRP of the selection be defined as access into
Work(, and reply MSG4；
Step 805, if the TRP of selection is not successfully received the MSG3 information, and the Master nodes judge to have it is multiple
When UE initiates Stochastic accessing, then the MSG3 information that the TRP of the selection determines to have multiple UE transmissions clashes or the UE
The RAR of selection mistake sends the MSG3 information.
Specifically, as shown in figure 9, Fig. 9 is a kind of schematic diagram of Stochastic accessing provided in an embodiment of the present invention.If no
Receive successfully, and now Master nodes judge have multiple UE to initiate Stochastic accessing, and TRP is considered that multiple UE MSG3 occurs
Collision, or UE have selected the RAR of mistake and carry out MSG3 replies, and Master nodes may determine whether by selected TRP
RAR is initiated again in MSG 4 window.
With reference to figure 10, Figure 10 is a kind of high-level schematic functional block diagram of the device of Stochastic accessing provided in an embodiment of the present invention.
As shown in Figure 10, described device includes：
Selecting module 1001, for when initiating Stochastic accessing, randomly choosing access sequence on random access resource, and
Stochastic accessing is initiated, to cause at least one TRP to carry out signal detection to the random access resource, and testing result is reported
Master nodes are given, the Master nodes are that each UE selects TRP to carry out accidental access response RAR times according to the UE information
Multiple, at least one TRP shares the random access resource；
First detection module 1002, for detecting RAR in RAR windows；
Sending module 1003, if for detecting at least one RAR, selection signal quality exceedes preset signals quality threshold
The RAR of value sends MSG3 information, if to cause TRP to be properly received the MSG3 information, the TRP is defined as being successfully accessed,
And reply MSG4.
Preferably, described device also includes：
Processing module, if for the UE not MSG4 windows detecting to the MSG4, it is determined that to be initially accessed mistake
Lose, and the RAR is detected in the MSG4 windows, if detecting the RAR, continue Stochastic accessing.
Preferably, described device also includes：
Second detection module, for detecting RAR in RAR windows in the UE, if detecting at least one RAR, institute
After UE selection signals quality is stated more than the RAR transmission MSG3 information of preset signals quality threshold, examined in the MSG4 windows
Survey the RAR.
Preferably, second detection module, is specifically used for：
The RAR is detected in the window of the MSG4 by TRP configuration.
Preferably, second detection module, also particularly useful for：
Configured information is carried in initial RAR, the configured information is used to indicate whether the UE is needed in MSG4 windows
Continue to detect new RAR after mouth detection failure.
With reference to figure 11, Figure 11 is the functional module signal of the device of another Stochastic accessing provided in an embodiment of the present invention
Figure.
As shown in figure 11, described device includes：
Receiving module 1101, the Stochastic accessing initiated for receiving mobile terminal UE on random access resource；
Detection module 1102, for carrying out signal detection to the random access resource；
Reporting module 1103, for testing result to be reported into master nodes, at least one TRP it is shared it is described with
Machine access-in resource；
Acquisition module 1104, for obtaining the UE information of access according to the testing result；
First replys module 1105, for being that each UE selects TRP to carry out accidental access response RAR according to the UE information
Reply, to cause the UE to detect RAR in RAR windows, if detecting at least one RAR, the UE selection signals quality
RAR more than preset signals quality threshold sends MSG3 information；
Second replys module 1106, if being properly received the MSG3 information, the TRP of the selection for the TRP selected
It is defined as being successfully accessed, and replys MSG4.
Preferably, described device also includes：
Judge module, if the TRP for selecting is not successfully received the MSG3 information, and the Master nodes judge have
When multiple UE initiate Stochastic accessing, it is determined that the MSG3 information for having multiple UE to send clashes or the UE selects mistake
RAR sends the MSG3 information.
Preferably, the detection module 1102, is specifically used for：
The detection of signal peak and/or the detection of the access sequence sequence number are carried out to the random access resource.
Preferably, the detection module 1102, also particularly useful for：
If detect the sample value more than predetermined threshold value, it is determined that limited peak value is detected, it is otherwise described at least one
TRP is defined as invalid peak value；
If the number of the limited peak value detected is more than one, and two effective peak intervals are less than predetermined interval thresholding,
The small effective peak of energy is then deleted, or an effective peak is merged into according to preset algorithm.
Preferably, the acquisition module 1104, is specifically used for：
According to mobile terminal locations curve described in two effective peak position acquisitions corresponding to two TRP difference.
Preferably, the acquisition module 1104, also particularly useful for：
If range difference is d12 between TRP1 and TRP2, it is on hyp wherein one to obtain UE positions.
Preferably, the acquisition module 1104, also particularly useful for：
It is position in plane to obtain UE positions according to three TRP.
Preferably, the acquisition module 1104, also particularly useful for：
If there are M bar curves simultaneously in area size S, it is determined that the region is effective mobile terminal locations；
If there are multiple regions, it is determined that there are multiple mobile terminals to initiate random access request；
If there is not the region, it is determined that only a mobile terminal initiates the random access request.
Preferably, described first module 1105 is replied, be specifically used for：
Selection receives the TRP RAR that accidental access signal energy is maximum corresponding to the mobile terminal and replied.
Preferably, described first module 1105 is replied, also particularly useful for：
If the Master nodes are that the TRP of multiple UE selections is identical, RAR replies are only carried out by the TRP of selection.
With reference to figure 12, Figure 12 is a kind of structural representation of the system of Stochastic accessing provided in an embodiment of the present invention.
As shown in figure 12, the system includes：At least one transmission node TRP1201, master node 1202 and movement
Terminal UE 1203, the transmission node TRP1201 are connected with the master nodes 1202, at least one transmission node
TRP1202 shares random access resource, the time-frequency location and Stochastic accessing of the random access resource of at least one TRP1202
Sequence all same；
The UE1203, for when initiating Stochastic accessing, access sequence being randomly choosed on random access resource, concurrently
Play Stochastic accessing；RAR is detected in RAR windows, if detecting at least one RAR, selection signal quality exceedes preset signals
The RAR of quality threshold sends MSG3 information；
At least one TRP1201, the Stochastic accessing initiated for receiving mobile terminal UE on random access resource,
And signal detection is carried out to the random access resource, testing result is reported into master nodes, at least one TRP is total to
Enjoy the random access resource；
The Master nodes 1202, for obtaining the UE information of access according to the testing result；Believed according to the UE
Cease and select TRP to carry out accidental access response RAR replies for each UE；If the TRP of selection is properly received the MSG3 information, institute
The TRP for stating selection is defined as being successfully accessed, and replys MSG4.
The technical principle of the embodiment of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain this
The principle of inventive embodiments, and the limitation to protection domain of the embodiment of the present invention can not be construed in any way.Based on herein
Explanation, those skilled in the art, which would not require any inventive effort, can associate the other specific of the embodiment of the present invention
Embodiment, these modes are fallen within the protection domain of the embodiment of the present invention.
Claims (24)
- A kind of 1. method of Stochastic accessing, it is characterised in that methods described includes：Multiple transmission nodes with identical ID carry out Stochastic accessing detection on public random access resource；Testing result is reported public control node by the multiple transmission node with identical ID；The public control node Master nodes carry out multi-mobile-terminal access detection according to reported result, and are request access Mobile terminal selection optimal transmission node carries out replying accidental access response RAR message to complete random access procedure.
- 2. according to the method for claim 1, it is characterised in that the multiple transmission node with identical ID is public Stochastic accessing detection is carried out on random access resource, including：The multiple transmission node with identical ID carries out Stochastic accessing detection, detection knot on public random access resource Fruit is the information that can be obtained by accidental access signal, and described information includes sequence number, peak corresponding to the accidental access signal The energy of value and position etc..
- 3. according to according to the method for claim 2, it is characterised in that the multiple transmission node with identical ID is in public affairs After Stochastic accessing detection being carried out on common random access resource, in addition to：If the testing result that the multiple transmission node with identical ID reports includes peak energy and the position of sequence, institute State multiple transmission nodes with identical ID and peak value is judged according to default threshold T hreshhold_power；If some sample value is defined as having more than Threshhold_power, the multiple transmission node with identical ID Peak value is imitated, is otherwise invalid peak value；If the number of the effective peak may be more than one, if two effective peak intervals are less than pre-determined threshold d, institute State multiple transmission nodes with identical ID to remove the less peak value of energy, or merge in other way as one Effective peak.
- 4. according to the method for claim 2, it is characterised in that methods described also includes：If the transmission node with identical ID does not detect effective information, the transmission node with identical ID is not Testing result is carried out to report.
- 5. the method according to according to Claims 1-4 any one, it is characterised in that the Master nodes are according to upper Result is reported to carry out multi-mobile-terminal access detection, including：The testing result and its prior information to network that the Master nodes report according to the transmission node with identical ID Carry out multi-mobile-terminal detection；Wherein, the prior information includes the geographical location information of multiple transmission nodes.
- 6. the method according to according to Claims 1-4 any one, it is characterised in that the public control node Master nodes carry out multi-mobile-terminal access detection according to reported result, including：Master nodes mobile terminal locations described in two effective peak position acquisitions according to corresponding to two TRP difference are bent Line.
- 7. according to the method for claim 6, it is characterised in that the Master nodes are according to corresponding to two TRP difference Mobile terminal locations curve described in two effective peak position acquisitions, including：If range difference is d12 between TRP1 and TRP2, it is hyp wherein one that the Master nodes, which obtain UE positions, On, the hyperbola is obtained by the distance between the TRP1 and the TRP2 and the d12.
- 8. according to the method described in Claims 1-4 any one, it is characterised in that the public control node Master sections Point carries out multi-mobile-terminal access detection according to reported result, including：It is position in plane that the Master nodes obtain UE positions according to three TRP.
- 9. according to the method described in Claims 1-4 any one, it is characterised in that the public control node Master sections Point carries out multi-mobile-terminal access detection according to reported result, including：If there are M bar curves simultaneously in area size S, it is determined that the region is effective mobile terminal locations；If there are multiple regions, it is determined that there are multiple mobile terminals to initiate random access request；If there is not the region, it is determined that only a mobile terminal initiates the random access request.
- 10. the method according to according to Claims 1-4 any one, it is characterised in that the Master nodes are request Access mobile terminal selection optimal transmission node is carried out replying accidental access response RAR message to complete random access procedure, bag Include：The Master nodes select optimal T RP to carry out accidental access response RAR times for each mobile terminal detected It is multiple.
- 11. the method according to according to Claims 1-4 any one, it is characterised in that the Master nodes are request Access mobile terminal selection optimal transmission node is carried out replying accidental access response RAR message to complete random access procedure, bag Include：If the Master nodes are the TRP that the multiple mobile terminal selects identical RAR to reply, and are taken in the RAR Band customizing messages is indicated, so that the UE continues described in specific window search in the case where being not successfully received MSG4 RAR, and continue identical access procedure.
- 12. the method according to according to Claims 1-4 any one, it is characterised in that methods described also includes：If the mobile terminal for carrying out Stochastic accessing detects multiple RAR, the Master nodes selection signal is top-quality One RAR, and carry out ensuing random access procedure.
- 13. a kind of device of Stochastic accessing, it is characterised in that described device includes：Detection module, for carrying out Stochastic accessing detection on public random access resource；Reporting module, for testing result to be reported into public control node；AM access module, for carrying out multi-mobile-terminal access detection according to reported result, and it is request access mobile terminal selection Optimal transmission node carries out replying accidental access response RAR message to complete random access procedure.
- 14. device according to claim 13, it is characterised in that the detection module, be used for：Stochastic accessing detection is carried out on public random access resource, testing result can obtain by accidental access signal Information, described information include sequence number, the energy of peak value and position etc. corresponding to the accidental access signal.
- 15. according to device according to claim 14, it is characterised in that described device also includes：Judge module, for carrying out Stochastic accessing on public random access resource in multiple transmission nodes with identical ID After detection, if the testing result that the multiple transmission node with identical ID reports includes peak energy and the position of sequence Put, then peak value is judged according to default threshold T hreshhold_power；If some sample value is more than Threshhold_ Power, it is determined that be effective peak, be otherwise invalid peak value；If the number of the effective peak may be more than one, if Two effective peak intervals are less than pre-determined threshold d, then remove the less peak value of energy, or be merged into other way For an effective peak.
- 16. device according to claim 14, it is characterised in that described device also includes：Processing module, if not detecting effective information for the transmission node with identical ID, tied without detection Fruit reports.
- 17. the device according to according to claim 13 to 16 any one, it is characterised in that the AM access module, specifically For：The testing result reported according to the transmission node with identical ID and its prior information progress multi-mobile-terminal to network Detection, wherein, the prior information includes the geographical location information of multiple transmission nodes.
- 18. according to the device described in claim 13 to 16 any one, it is characterised in that the AM access module, it is also specific to use In：According to mobile terminal locations curve described in two effective peak position acquisitions corresponding to two TRP difference.
- 19. device according to claim 18, it is characterised in that the AM access module, also particularly useful for：If range difference is d12 between TRP1 and TRP2, it is hyp wherein one that the Master nodes, which obtain UE positions, On, the hyperbola is obtained by the distance between the TRP1 and the TRP2 and the d12.
- 20. according to the device described in claim 13 to 16 any one, it is characterised in that the AM access module, it is also specific to use In：It is position in plane to obtain UE positions according to three TRP.
- 21. according to the device described in claim 13 to 16 any one, it is characterised in that the AM access module, it is also specific to use In：If there are M bar curves simultaneously in area size S, it is determined that the region is effective mobile terminal locations；If there are multiple regions, it is determined that there are multiple mobile terminals to initiate random access request；If there is not the region, it is determined that only a mobile terminal initiates the random access request.
- 22. according to the device described in claim 13 to 16 any one, it is characterised in that the AM access module, it is also specific to use In：Optimal T RP is selected to carry out accidental access response RAR replies for each mobile terminal detected.
- 23. according to the device described in claim 13 to 16 any one, it is characterised in that the AM access module, it is also specific to use In：If the Master nodes are the TRP that the multiple mobile terminal selects identical RAR to reply, taken in the RAR Band customizing messages is indicated, so that the UE continues described in specific window search in the case where being not successfully received MSG4 RAR, and continue identical access procedure.
- 24. the device according to according to claim 13 to 16 any one, it is characterised in that the AM access module, also have Body is used for：If the mobile terminal for carrying out Stochastic accessing detects multiple RAR, the Master nodes selection signal is top-quality One RAR, and carry out ensuing random access procedure.
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