CN106170134A - Arrange net multi-hop of eating dishes without rice or wine of a kind of LTE smallcell indoor synchronizes self-configuring self-organization method - Google Patents
Arrange net multi-hop of eating dishes without rice or wine of a kind of LTE smallcell indoor synchronizes self-configuring self-organization method Download PDFInfo
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- CN106170134A CN106170134A CN201610674066.8A CN201610674066A CN106170134A CN 106170134 A CN106170134 A CN 106170134A CN 201610674066 A CN201610674066 A CN 201610674066A CN 106170134 A CN106170134 A CN 106170134A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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Abstract
A kind of LTE smallcell indoor multi-hop of arranging net synchronizes self-configuring self-organization method, smallcell self-configuring self-optimizing when arranging net in indoor multi-hop that carries out eating dishes without rice or wine is utilized to synchronize: 1) peripheral cell is carried out network intercepting NWL after electrifying startup, obtaining around macro station cell information and adjacent cell information, information includes frequency；2) all cell informations that NWL is obtained by SON module are analyzed, the signal quality sent according to peripheral cell and synchronisation source select thresholding to automatically select the object community of synchronization, if synchronization object is macro base station, default configuration multi-hop ID is 0, otherwise according to the multi-hop ID of multi-hop ID equipping rules configurations match neighbor cell；3) carry multi-hop ID by the spare parameter of the MIB in broadcast to broadcast to peripheral cell；The self-configuring self-optimizing multi-hop synchronous method that the present invention provides, arranges net provide the means of supplementing out economy for indoor or macro station signal weaker district.
Description
Technical field
The present invention relates to the technical field of wireless communication system TD-LTE, particularly relate to a kind of in indoor or weak overlay area
Interior multi-hop of eating dishes without rice or wine synchronizes self-configuring self-organization method.
Background technology
LTE-smallcell be a kind of TD-LTE of being integrated with little base station equipment (be LTE lower powered wireless access joint
Point), there is low transmitting power, the features such as little scope covers, plug and play, self-configuring, self-optimizing.
TD-LTE agreement defines all basic station over network and must synchronize, and unlike macro base station, smallcell is mostly used for
Blind use is mended in indoor place, it is impossible to using GSP synchronization policy, substitution method base station little with TDS is similar, it is possible to use 1588 nets
Network clock protocols synchronizes or air interface synchronization technology, and the former needs clock server support and network is transmitted each node device
Having certain requirement, so practical upper limit system is bigger, the latter's advantage is convenient, flexible, but weak at macro station signal or do not have
The region of macro station signal just cannot use.
Stronger macro station signal can not be searched for those thus obtain the smallcell of synchronization, need dependent on neighboring
The smallcell having obtained synchronization synchronize, this scene multi-hop that is referred to as eating dishes without rice or wine synchronizes.
In multihop system, although the smallcell method of synchronization is also to use to receive synchronization object as mobile terminal
Primary and secondary synchronization signals obtain the synchronization of time and frequency, but owing to smallcell also can be frequent as a base station itself
Transmitting downstream signal, so in the environment of current identical networking, smallcell must fix in a synchronizing cycle
Close the transmitting of a synchronizing signal to avoid the synchronization of upper level smallcell is disturbed.Actual when arranging net
Realizing automatic synchronization in the case of not having manual intervention, to have configured the synchronization of smallcell at different levels the most crucial.
Summary of the invention
It is an object of the invention to, in order to macro station cover more weak even without region realize eat dishes without rice or wine multi-hop synchronize, propose
A kind of method of the self-configuring self-optimizing of multi-hop ID.
The technical scheme is that a kind of LTE-smallcell indoor multi-hop of arranging net synchronizes self-configuring self-organization method,
I.e. utilize smallcell self-configuring self-optimizing when arranging net in indoor to carry out eating dishes without rice or wine method that multi-hop synchronizes, it is characterised in that include
Following steps:
Self-configuring process:
1) after electrifying startup, peripheral cell is carried out network intercepting NWL (Network-Listening), it is thus achieved that macro station around
Cell information and adjacent smallcell cell information, information includes frequency, PCI, signal intensity, cell ID, multi-hop ID etc.；
2) all cell informations that NWL is obtained by the SON module of smallcell are analyzed, and send according to peripheral cell
Signal quality and synchronisation source select thresholding to automatically select the object community of synchronization, if synchronization object is macro base station, give tacit consent to
Configuration multi-hop ID is 0, otherwise according to the multi-hop ID of multi-hop ID equipping rules configurations match adjacent smallcell community；
3) carry multi-hop ID by the spare parameter of the MIB in broadcast to broadcast to peripheral cell；
Self-optimizing process:
1) synchronous regime and synchronizing quality can be monitored when running by smallcell in real time, when synchronizing quality deteriorates
When even there is step-out, SON module can trigger NWL and obtain up-to-date network intercepting NCL (neighbour cell list)；
2) NWL is analyzed by the SON module of smallcell, changes synchronization object again according to synchronisation source selection algorithm
Synchronize and update self multi-hop ID according to multi-hop ID equipping rules；
3) the new multi-hop ID after being optimized by the broadcast of system broadcast message MIB.Smallcell is solid in a synchronizing cycle
Launching to avoid the synchronization of upper level smallcell is disturbed of fixed one synchronizing signal of closedown.
Beneficial effects of the present invention: the air interface synchronization multi-hop self-configuring self-organization method of the present invention, for indoor or macro station
Signal more weak even without area arrange net and provide a kind of effective means of supplementing out economy.The present invention is based on start NWL and synchronization
Quality occur abnormal after NWL, dynamically update synchronisation source and multi-hop ID and be broadcast in neighbouring multihop network other
Smallcell, it is achieved that smallcell multi-hop is automatically arranged net and can carry out self-optimizing after synchronizing to deteriorate, it is to avoid artificial
Participate in, reduce operation cost.
Accompanying drawing explanation
Fig. 1 is different multi-hop rank smallcell synchronization frame skew and synchronization frame closed position schematic diagram.One synchronization
In cycle, signal at stop position and synchronization frame offset state；
Fig. 2 is MIB message structure；
Fig. 3 is multi-hop ID self-configuring flow process；
Fig. 4 is multi-hop self-optimizing flow chart.
Detailed description of the invention
The present invention provide a kind of smallcell self-configuring self-optimizing when arranging net in indoor to carry out eating dishes without rice or wine side that multi-hop synchronizes
Method, self-configuring process: 1, after electrifying startup, peripheral cell is carried out network intercepting NWL (Network-Listening), it is thus achieved that week
Enclosing macro station cell information and smallcell cell information 2, SON module obtains community to NWL and is analyzed, and selects
Smallcell air interface synchronization object also configures self multi-hop ID 3, by broadcast to self configuration of peripheral cell broadcast
Information.Self-optimizing process: during 1, smallcell operation, SON module triggers NWL renewal NCL 2, and SON module obtains community to NWL
It is analyzed, reselects synchronization object and update multi-hop ID 3, the new multi-hop ID after being optimized by broadcast.This
The self-configuring self-optimizing multi-hop synchronous method of bright offer, for indoor or macro station signal more weak even without area arrange net offer
A kind of effective means of supplementing out economy.With specific embodiment, specific embodiments of the present invention are done further below in conjunction with the accompanying drawings
Bright.
Self-configuring process such as Fig. 1:
After 1.smallcell electrifying startup, peripheral cell is carried out network intercepting NWL (Network-Listening), NWL
Being responsible for by REM module, search for and resolve and obtain around macro station and smallcell cell information, information includes frequency, PCI, letter
Number intensity, cell ID, multi-hop ID etc..
All communities that NWL is obtained by 2.SON module are analyzed processing, and select door according to signal quality and synchronisation source
Limit automatically selects the object community of synchronization, if synchronization object is macro base station, default configuration multi-hop ID is 0, otherwise according to multi-hop
ID equipping rules configuration multi-hop ID.As shown in figure, multi-hop ID is 0 to the equipping rules of each rank smallcell multi-hop ID
Smallcell1 is the most Tong Bu with macro station, it is only necessary to the frame at sfn%32==0 is closed the transmitting of synchronizing signal and carries out self
Synchronization with macro station.Smallcell2 with smallcell1 is Tong Bu, then configuration multi-hop ID is 1, in the synchronization of sfn%32==2
Smallcell1 is synchronized and closes the synchronizing signal transmitting of sfn%32==0 frame to avoid smallcell1's by frame
Synchronize produce interference, after by that analogy,.It can be seen that in order to avoid interference, jumping figure can be leaned on by jumping figure smallcell rearward
That frame that front smallcell carries out synchronizing is closed to avoid interference.
3. being a self-defining parameter for distinguishing multi-hop rank due to multi-hop ID, non-agreement specifies.Assist in lower floor
In view, by the equipping rules of multi-hop ID, we notify when physical layer closes when synchronizing signal receives synchronization
Signal (multi-hop ID and synchronizing signal relation such as Fig. 1), and in upper-layer protocol, we are joined by the spare of MIB in broadcast
Number carries multi-hop ID thus reaches to notify this parameter the purpose of other smallcell, as it is shown on figure 3, spare parameter is made
Typically will not be used for retention parameter, size is 10BIT STRING, complies fully with our requirement.
Self-optimizing process such as Fig. 4:
Synchronous regime and synchronizing quality can be monitored when running by 1.smallcell in real time, when synchronizing quality occurs
Deteriorate even step-out time, SON module will receive synchronous abnormality and alert and enter step-out handling process, and notice REM module is carried out
Frequency sweep obtains up-to-date adjacent cell list NCL (neighbour cell list)
NCL is sent to SON module and is analyzed by 2.REM module, according to synchronisation source selection algorithm, selects a new matter
Measure preferable synchronization object and update self multi-hop ID according to the multi-hop ID equipping rules of the inner description of self-configuring process 2.
3. after self multi-hop ID changes, its multi-hop ID of record in the NCL information of other smallcell in system
It is timed out, so the multi-hop ID carried updated in MIB send system broadcast message more new information.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (1)
1. LTE-smallcell indoor arrange net multi-hop synchronize a self-configuring self-organization method, i.e. utilize smallcell in indoor
When arranging net, self-configuring self-optimizing is carried out eating dishes without rice or wine the method that multi-hop synchronizes, it is characterised in that comprise the steps:
Self-configuring process:
1) after electrifying startup, peripheral cell is carried out network intercepting NWL (Network-Listening), it is thus achieved that macro station community around
Information and adjacent smallcell cell information, information includes frequency, PCI, signal intensity, cell ID, multi-hop ID etc.；
2) all cell informations that NWL is obtained by the SON module of smallcell are analyzed, the letter sent according to peripheral cell
Number quality and synchronisation source select thresholding to automatically select the object community of synchronization, if synchronization object is macro base station, default configuration
Multi-hop ID is 0, otherwise according to the multi-hop ID of multi-hop ID equipping rules configurations match adjacent smallcell community；
3) carry multi-hop ID by the spare parameter of the MIB in broadcast to broadcast to peripheral cell；
Self-optimizing process:
1) synchronous regime and synchronizing quality can be monitored when running by smallcell in real time, when synchronizing quality deteriorates even
When there is step-out, SON module can trigger NWL and obtain up-to-date network intercepting NCL (neighbour cell list)；
2) NWL is analyzed by the SON module of smallcell, changes synchronization object re-synchronization according to synchronisation source selection algorithm
And update self multi-hop ID according to multi-hop ID equipping rules；
3) the new multi-hop ID after being optimized by the broadcast of system broadcast message MIB.
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| CN201610674066.8A CN106170134A (en) | 2016-08-15 | 2016-08-15 | Arrange net multi-hop of eating dishes without rice or wine of a kind of LTE smallcell indoor synchronizes self-configuring self-organization method |
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| CN201610674066.8A CN106170134A (en) | 2016-08-15 | 2016-08-15 | Arrange net multi-hop of eating dishes without rice or wine of a kind of LTE smallcell indoor synchronizes self-configuring self-organization method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107241772A (en) * | 2017-07-21 | 2017-10-10 | 重庆邮电大学 | A kind of adjacent cell of cell is set up and application method |
| CN110637488A (en) * | 2017-03-23 | 2019-12-31 | 瑞典爱立信有限公司 | Network node, wireless communication device, method, and computer program |
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