CN104853427B - A kind of Home eNodeB synchronous method and Home eNodeB - Google Patents
A kind of Home eNodeB synchronous method and Home eNodeB Download PDFInfo
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- CN104853427B CN104853427B CN201410053100.0A CN201410053100A CN104853427B CN 104853427 B CN104853427 B CN 104853427B CN 201410053100 A CN201410053100 A CN 201410053100A CN 104853427 B CN104853427 B CN 104853427B
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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Abstract
The invention discloses a kind of Home eNodeB synchronous method and Home eNodeB, this method to include：Home eNodeB starts WiFi module and scans after the power-up is located at other each Home eNodeB that the transmission in the same area has WiFi signal with the Home eNodeB；The main Home eNodeB of synchronizing information can be provided for the Home eNodeB from selection in other each Home eNodeB scanned and according to the time deviation measured from the synchronizing information got in the WiFi signal transmitted by the main Home eNodeB between main Home eNodeB；The local clock that Home eNodeB is adjusted according to the time deviation is synchronous to complete the clock between main Home eNodeB.In this programme, realize that the clock between Home eNodeB synchronizes since synchronizing information can be scanned by the WiFi module being arranged in Home eNodeB, it can thus achieve the purpose that more simply and quickly to realize the precise synchronization between Home eNodeB on the basis of without modifying without interface-free resources are occupied to hardware.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of Home eNodeB synchronous method and Home eNodeB.
Background technology
Home eNodeB is that one kind being integrated with small base station（It may be generally referred to as Femto or Small cell）And WLAN
（Wireless Local Area Networks, Wireless LAN）The equipment of function can provide WiFi access work(simultaneously
Can and including TD-SCDMA（Time Division-Synchronous Code Division Multiple Access, when
Divide S-CDMA-Synchronous Code Division Multiple Access）Or TD-LTE（Time Division-Long Term Evolution, time-division long term evolution）Deng including
Cellular mobile communication access function, be mainly used for domestic consumer and enterprise customer provide integrated communication solution,
To realize the effective covering supplement and capacity extensions of cellular network.
Specifically, the group-network construction of the Home eNodeB can be as shown in Figure 1, wherein the Home eNodeB may include being used for
The Cellular Networks module of cellular mobile communication access function and the WiFi module for providing WiFi access functions are provided.Further
Ground, as shown in Figure 1, the Home eNodeB can pass through broadband backhaul network insertion WLAN Verification Systems and EPC（Evolved
Packet Core, packet core network）In core net.Wherein, the frame of the EPC core nets and the WLAN Verification Systems
Structure is identical as existing EPC core nets and the existing framework of WLAN Verification Systems, for example, the EPC core nets may include MME
（Mobility Management Entity, mobility management entity）、HSS（Home SubscriberServer, ownership are used
Family server）、S-GW（Serving Gateway, gateway）And P-GW（Packet Data Network Gateway,
Packet data network gateway）Etc. equipment, the WLAN Verification Systems may include Portal（Portal server）、AC（Access
Controller, access controller）And AAA（Authentication Authorization Accounting, verify, award
Power and book keeping operation）Server etc., details are not described herein again；Further more, as shown in Figure 1, may be used also in the group-network construction of the Home eNodeB
Have the newly added equipments such as the femto gateway for being responsible for and transmitting Home eNodeB data and Home eNodeB webmaster, herein
It repeats no more.
Specifically, similar with macro base station when carrying out networking there are multiple Home eNodeB in same setting regions, for
TDD standards（Such as TD-SCDMA or TD-LTE standards）Home eNodeB group network system for, in the Home eNodeB group network system
Each Home eNodeB between need keep clock synchronize, to avoid the signal interference generated between each other.In addition, when Home eNodeB with
When disposing using similar frequency bands with its neighbouring macro base station, also need to keep clock synchronous with the macro base station.
Specifically, industry realizes that the clock between Home eNodeB synchronizes frequently with following manner at present：
Mode one：Using GPS（Global Positioning System, global positioning system）Satellite synchronization mode.Tool
Body, GPS satellite signal can be received to realize that the clock between Home eNodeB synchronizes by external GPS antenna.But due to
When using this kind of mode, GPS antenna need to usually be mounted on outdoor unobstructed region smoothly to receive GPS satellite signal, for
Major deployments could complete the Home eNodeB of covering in often disposing the above Home eNodeB of dozens of in an indoor and region
For group network system, it is difficult to realize the connection of outdoor GPS antenna.
Mode two：It is synchronized into row clock using IEEE1588v2 agreements by transmission network.Specifically, this kind of side is being used
When formula, the characteristics of being connected to core net by transmission network using all base stations, in some concentrating equipment of core-network side
One reference clock of upper setting, can be atomic clock or GPS synchronizing signals, then used by wire transmission network
The synchronizing information is sent to base station equipment by standard scheme as defined in IEEE1588v2 agreements together with normal data traffic packet,
Base station equipment receives the signal and calibrates local clock by means such as delay measurements compensation, keeps synchronous with reference clock.But
It is, due to when using this kind of mode, it is desirable that all transmission devices in transmission network are both needed to support the IEEE1588v2 times same
Agreement is walked, needs device hardware to be transformed or replace, supports the transmission device ratio of the agreement relatively low in real network at present, it is inconvenient
Synchronisation requirement when Home eNodeB large scale deployment.
Mode three：By intercepting outdoor macro base station or other Home eNodeB signal of eating dishes without rice or wine synchronizes.In this mode,
For Home eNodeB during initial power-on or periodic duty, the pattern that can switch to network intercepting independently receives neighboring community
Broadcast singal, and synchronizing signal is therefrom parsed according to the agreement frame structure of standard, and as reference synchronization to neighbouring
Cell.But when using this kind of mode, acquisition synchronizing signal is intercepted due to also being needed except normal transceiver communication, generally
It needs occupancy partial time slot specially to receive adjacent cell signal, this community user resource utilization is reduced, in addition, in neighbour
When nearly cell frequency range and this cell are inconsistent, additional circuit need to be increased toward contact to receive the signal of different frequency range, increased hard
Part complexity.
In conclusion when carrying out the clock synchronization between Home eNodeB using currently used clock synchronization mode, it is past
Toward there is a problem of deployment difficulty or need to modify to the hardware device of Home eNodeB or interface-free resources need to be occupied etc. so that family
Synchronous efficiency and synchronous effect between the base station of front yard is relatively low.
Invention content
An embodiment of the present invention provides a kind of Home eNodeB synchronous method and equipment, to solve presently, there are use it is existing
Synchronous efficiency and synchronous effect poor problem when clock between having clock synchronization mode to carry out Home eNodeB synchronizes.
An embodiment of the present invention provides a kind of Home eNodeB synchronous method, including：
Home eNodeB starts the WiFi module being arranged in the Home eNodeB after the power-up, and passes through the WiFi module
Scanning is located at other each Home eNodeB that in same setting regions, transmission has WiFi signal with the Home eNodeB；
According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each Home eNodeB scanned
In, choose the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB；
Corresponding synchronizing information is obtained from the WiFi signal transmitted by the main Home eNodeB, and same according to what is got
The time deviation between Home eNodeB and the main Home eNodeB described in information measurement is walked, and, according to the time deviation tune
The local clock of the whole Home eNodeB, it is synchronous to complete the clock between the Home eNodeB and the main Home eNodeB.
Further, the method further includes：
If not scanning WiFi signal by the WiFi module, or arrived and the family by WiFi module scanning
Base station, which is located in same setting regions, transmission, to be had other each Home eNodeB of WiFi signal and determines other each families scanned
There is no the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB in the base station of front yard, then
Corresponding synchronizing information is broadcasted by the WiFi module, so as to be located at same setting regions with the Home eNodeB
The synchronizing information that other interior Home eNodeB are broadcasted according to the WiFi module realizes that the clock between the Home eNodeB is same
Step.
Further, the WiFi signal transmitted by other each Home eNodeB scanned, from scan it is each other
In Home eNodeB, the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB is chosen, including：
According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each Home eNodeB scanned
In, it can be the family to choose and carry the Home eNodeB conduct of specific synchronizing information mark in transmitted WiFi signal
Base station provides the main Home eNodeB of respective synchronization information；Alternatively,
According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each Home eNodeB scanned
In, any Home eNodeB conduct of the selected equipment priority level higher than the Home eNodeB can provide phase for the Home eNodeB
Answer the main Home eNodeB of synchronizing information.
Further, from other each Home eNodeB scanned, selected equipment priority level is higher than the Home eNodeB
Any Home eNodeB as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, including：
From other each Home eNodeB scanned, selected equipment priority level is higher than other each families of the Home eNodeB
Front yard base station, and priority level and the family are chosen in other each Home eNodeB from equipment priority level higher than the Home eNodeB
The closest Home eNodeB in front yard base station as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, or
Person chooses the highest Home eNodeB of priority level from other each Home eNodeB that equipment priority level is higher than the Home eNodeB
As the main Home eNodeB that can provide respective synchronization information for the Home eNodeB.
Further, according to the synchronizing information got measure between the Home eNodeB and the main Home eNodeB when
Between deviation, including：
According to the synchronizing information got, obtain carried in the synchronizing information for indicating the main Home eNodeB hair
The first time information T1 of corresponding sending time when sending the synchronizing information, and obtain for indicating the Home eNodeB from institute
State corresponding the second temporal information T2 for obtaining time when getting the synchronizing information in main Home eNodeB；
To the first data packet of master's house's front yard base station feedback, carried in first data packet for indicating to the master
Home eNodeB feeds back the third temporal information T3 of corresponding feedback time when the first data packet；
The second data packet of master's house's front yard base station feedback is received, is carried in second data packet for indicating described
4th temporal information T4 of main Home eNodeB corresponding feedback time when feeding back the second data packet to the Home eNodeB；
According to above-mentioned T1, T2, T3 and T4, it is calculated by the following formula to obtain the Home eNodeB and master's house's front yard base
Time deviation D between standing：D=1/2[(T2-T1)+(T4-T3)].
Correspondingly, the embodiment of the present invention additionally provides a kind of Home eNodeB, including：
Starting module, for starting the WiFi module being arranged in the Home eNodeB after the power-up；
WiFi module, for scan with the Home eNodeB be located at it is in same setting regions, transmission have WiFi signal
Other each Home eNodeB, and the WiFi signal transmitted by other each Home eNodeB scanned, from scan it is each other
In Home eNodeB, the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB is chosen, and, from the master's house
Corresponding synchronizing information is obtained in WiFi signal transmitted by the base station of front yard, and the family is measured according to the synchronizing information got
Time deviation between base station and the main Home eNodeB, and, the sheet of the Home eNodeB is adjusted according to the time deviation
Ground clock, it is synchronous to complete the clock between the Home eNodeB and the main Home eNodeB.
Further, the WiFi module, if it is additionally operable to not scan WiFi signal, or scanning is arrived and the Home eNodeB
In same setting regions, transmission has other each Home eNodeB of WiFi signal and determines other each family's bases scanned
There is no the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB in standing, then broadcast is corresponding synchronizes letter
Breath so that with the Home eNodeB be located at other Home eNodeB in same setting regions broadcasted according to the WiFi module it is same
Information is walked, is realized synchronous with the clock between the Home eNodeB.
Further, the WiFi module, specifically for the WiFi transmitted by other each Home eNodeB scanned
Signal in from scanning to other each Home eNodeB, is chosen and carries specific synchronizing information mark in transmitted WiFi signal
Home eNodeB as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB；Alternatively,
According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each Home eNodeB scanned
In, any Home eNodeB conduct of the selected equipment priority level higher than the Home eNodeB can provide phase for the Home eNodeB
Answer the main Home eNodeB of synchronizing information.
Further, the WiFi module is specifically used in the following manner from other each Home eNodeB scanned,
Any Home eNodeB conduct of the selected equipment priority level higher than the Home eNodeB can provide accordingly for the Home eNodeB
The main Home eNodeB of synchronizing information：
From other each Home eNodeB scanned, selected equipment priority level is higher than other each families of the Home eNodeB
Front yard base station, and priority level and the family are chosen in other each Home eNodeB from equipment priority level higher than the Home eNodeB
The closest Home eNodeB in front yard base station as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, or
Person chooses the highest Home eNodeB of priority level from other each Home eNodeB that equipment priority level is higher than the Home eNodeB
As the main Home eNodeB that can provide respective synchronization information for the Home eNodeB.
Further, the WiFi module, specifically for measuring institute according to the synchronizing information got in the following manner
State the time deviation between Home eNodeB and the main Home eNodeB：
According to the synchronizing information got, obtain carried in the synchronizing information for indicating the main Home eNodeB hair
The first time information T1 of corresponding sending time when sending the synchronizing information, and obtain for indicating the Home eNodeB from institute
State corresponding the second temporal information T2 for obtaining time when getting the synchronizing information in main Home eNodeB；
To the first data packet of master's house's front yard base station feedback, carried in first data packet for indicating to the master
Home eNodeB feeds back the third temporal information T3 of corresponding feedback time when the first data packet；
The second data packet of master's house's front yard base station feedback is received, is carried in second data packet for indicating described
4th temporal information T4 of main Home eNodeB corresponding feedback time when feeding back the second data packet to the Home eNodeB；
According to above-mentioned T1, T2, T3 and T4, it is calculated by the following formula to obtain the Home eNodeB and master's house's front yard base
Time deviation D between standing：D=1/2[(T2-T1)+(T4-T3)].
The present invention has the beneficial effect that：
An embodiment of the present invention provides a kind of Home eNodeB synchronous method and Home eNodeB, the method includes：Family's base
It stands and starts WiFi module after the power-up and be located at the hair in the same area by WiFi module scanning and the Home eNodeB
Send other each Home eNodeB of WiFi signal；It can be the Home eNodeB to be chosen from other each Home eNodeB scanned
There is provided the main Home eNodeB of synchronizing information and according to the synchronization got from the WiFi signal transmitted by the main Home eNodeB
Time deviation between information measurement and main Home eNodeB；The local clock of Home eNodeB is adjusted with complete according to the time deviation
Clock between Cheng Yuzhu Home eNodeB synchronizes.In the present solution, due to can be by the WiFi module that is arranged in Home eNodeB
Synchronizing information is scanned to realize that the clock between Home eNodeB synchronizes, thus can be without modifying hardware without occupancy
On the basis of interface-free resources, achievees the purpose that more simply and quickly to realize the precise synchronization between Home eNodeB, improve family
Clock synchronous efficiency between base station and synchronous effect.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 show the group-network construction schematic diagram of existing Home eNodeB；
Fig. 2 show the flow diagram of Home eNodeB synchronous method described in the embodiment of the present invention one；
Fig. 3 show the structural schematic diagram of Home eNodeB described in the embodiment of the present invention two.
Specific implementation mode
An embodiment of the present invention provides a kind of Home eNodeB synchronous method and Home eNodeB, the method includes：Family's base
It stands the WiFi module that startup is arranged in the Home eNodeB after the power-up, and passes through WiFi module scanning and the family
Base station is located at other each Home eNodeB that in same setting regions, transmission has WiFi signal；According to other each families scanned
WiFi signal transmitted by the base station of front yard, from other each Home eNodeB scanned, selection can provide for the Home eNodeB
The main Home eNodeB of respective synchronization information；Corresponding synchronous letter is obtained from the WiFi signal transmitted by the main Home eNodeB
Breath, and the time deviation between the Home eNodeB and the main Home eNodeB is measured according to the synchronizing information got, and,
The local clock that the Home eNodeB is adjusted according to the time deviation, to complete the Home eNodeB and the main Home eNodeB
Between clock synchronize.
In the technical solution described in the embodiment of the present invention, due to can be scanned by the WiFi module being arranged in Home eNodeB
Synchronizing information realizes that the clock between Home eNodeB synchronizes, thus can eat dishes without rice or wine without occupancy without modifying to hardware
On the basis of resource, achievees the purpose that more simply and quickly to realize the precise synchronization between Home eNodeB, improve Home eNodeB
Between clock synchronous efficiency and synchronous effect.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
Embodiment one：
The embodiment of the present invention one provides a kind of Home eNodeB synchronous method, as shown in Fig. 2, it is the embodiment of the present invention one
Described in Home eNodeB synchronous method flow diagram, the Home eNodeB synchronous method may include following steps：
Step 101：Home eNodeB starts the WiFi module being arranged in the Home eNodeB after the power-up, and by described
WiFi module is scanned is located at other each family's bases that in same setting regions, transmission has WiFi signal with the Home eNodeB
It stands.
Specifically, the Home eNodeB can start setting in the Home eNodeB after electrifying startup automatically or according to triggering
Interior WiFi（Wirless Fidelity）Module, with nearby existing other Home eNodeB are sent out by WiFi module scanning
The WiFi signal sent is located at same setting regions by WiFi module scanning with the Home eNodeB（The setting area
Domain can be adjusted according to actual conditions, and the embodiment of the present invention is not limited in any way this）It is interior, send and have each of WiFi signal
Other Home eNodeB.Wherein, other each Home eNodeB scanned are generally transmitted WiFi signal and family's base
Transmitted WiFi signal of standing has unified SSID（Service Set Identifier, service set）Family's base
It stands, the embodiment of the present invention does not repeat this.
Step 102：According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each families scanned
In the base station of front yard, the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB is chosen.
Specifically, in embodiment of the present invention, following manner may be used from other each Home eNodeB scanned
In, choose the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB：
Mode one：According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each families scanned
In the base station of front yard, it is institute to choose and carry the Home eNodeB conduct of specific synchronizing information mark in transmitted WiFi signal
State the main Home eNodeB that Home eNodeB provides respective synchronization information.
Wherein, the specific synchronizing information mark can be for indicating based on the corresponding identity of corresponding Home eNodeB
The identity of Home eNodeB will be provided with described so that other do not have the Home eNodeB of the specific synchronizing information mark
The Home eNodeB of specific synchronizing information mark has the specific synchronous letter as corresponding main Home eNodeB, and to described
The Home eNodeB of breath mark initiates Clock Synchronization Procedure.
It should be noted that the mode one is especially applicable for, adjacent there is only two Home eNodeB or multiple families
Base station can listen to the scene of some central home base station, and the embodiment of the present invention does not repeat this.
Mode two：According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each families scanned
In the base station of front yard, selected equipment priority level can be the Home eNodeB higher than any Home eNodeB conduct of the Home eNodeB
The main Home eNodeB of respective synchronization information is provided.
Specifically, under two scene of mode, each Home eNodeB can respectively sent when sending corresponding WiFi signal
The equipment precedence information corresponding to it is broadcasted in WiFi signal, it after the power-up so as to any Home eNodeB, can be according to scanning
The WiFi signal of all Home eNodeB near arriving selects corresponding equipment priority level to be higher than any of the Home eNodeB
Home eNodeB is as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB.
Further, from other each Home eNodeB scanned, selected equipment priority level is higher than the Home eNodeB
Any Home eNodeB as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, may include：
From other each Home eNodeB scanned, selected equipment priority level is higher than other each families of the Home eNodeB
Front yard base station, and priority level and the family are chosen in other each Home eNodeB from equipment priority level higher than the Home eNodeB
The closest Home eNodeB in front yard base station as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, or
Person chooses the highest Home eNodeB of priority level from other each Home eNodeB that equipment priority level is higher than the Home eNodeB
As the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, the embodiment of the present invention does not make this any limit
It is fixed.
It should be noted that the mode two is especially applicable for the scene that multiple Home eNodeB need to be synchronized serially,
The embodiment of the present invention does not repeat this.
It is further to note that the executive agent of this step 102 is generally also to be arranged in the Home eNodeB
WiFi module, the embodiment of the present invention also do not repeat this.
Step 103：Obtain corresponding synchronizing information from the WiFi signal transmitted by the main Home eNodeB, and according to obtaining
The synchronizing information got measures the time deviation between the Home eNodeB and the main Home eNodeB, and, according to it is described when
Between Home eNodeB described in deviation adjusting local clock, to complete the clock between the Home eNodeB and the main Home eNodeB
It is synchronous.
Specifically, it in embodiment of the present invention, can be used similar to NTP（Network Time Protocol）Net
The mode that network is synchronous or IEEE1588v2 Ethernets synchronize etc. obtains the synchronizing information according to the synchronizing information got
Timestamp, and the time deviation between Home eNodeB and main Home eNodeB is measured according to the timestamp, so according to it is described when
Between Home eNodeB described in deviation adjusting local clock（Time deviation compensates the local clock of the Home eNodeB as will be described）,
The clock that can be realized between Home eNodeB and the main Home eNodeB is synchronous.
Further, in embodiment of the present invention, according to the synchronizing information that gets measure the Home eNodeB with
Time deviation between the main Home eNodeB may include：
According to the synchronizing information got, obtain carried in the synchronizing information for indicating the main Home eNodeB hair
The first time information T1 of corresponding sending time when sending the synchronizing information（Timestamp in the i.e. described synchronizing information）, and obtain
Take corresponding acquisition time when indicating that the Home eNodeB gets the synchronizing information from the main Home eNodeB
Second temporal information T2（Or it is also believed to when the Home eNodeB receives the WiFi signal that the main Home eNodeB is sent pair
The receiving time answered）；
To the first data packet of master's house's front yard base station feedback, carried in first data packet for indicating to the master
Home eNodeB feeds back the third temporal information T3 of corresponding feedback time when the first data packet；Further, first data
The second temporal information T2 can be also carried in packet, the embodiment of the present invention is not limited in any way this；
The second data packet of master's house's front yard base station feedback is received, is carried in second data packet for indicating described
4th temporal information T4 of main Home eNodeB corresponding feedback time when feeding back the second data packet to the Home eNodeB；Further
Ground can also carry the second temporal information T2 and third temporal information T3, the embodiment of the present invention pair in second data packet
This is not limited in any way；
According to above-mentioned T1, T2, T3 and T4, it is calculated by the following formula to obtain the Home eNodeB and master's house's front yard base
Time deviation D between standing：
D=1/2[(T2-T1)+(T4-T3)]。
Further, available after obtaining the time deviation D between the Home eNodeB and the main Home eNodeB
The time deviation D compensates the local clock of the Home eNodeB, to realize the Home eNodeB and the master's house front yard
Clock between base station synchronizes.
It should be noted that since position between Home eNodeB or communication environments may change and then cause at any time
Corresponding variation occurs for above-mentioned time-delay deviation, therefore, in embodiment of the present invention, in order to keep between Home eNodeB always
Synchronous, above-mentioned synchronizing process need in real time or periodically be carried out according to actual conditions, and the embodiment of the present invention does not repeat this.
Further, in embodiment of the present invention, the method can also include：
If not scanning WiFi signal by the WiFi module, or arrived and the family by WiFi module scanning
Base station, which is located in same setting regions, transmission, to be had other each Home eNodeB of WiFi signal and determines other each families scanned
There is no the main Home eNodeB that can provide respective synchronization information for the Home eNodeB in the base station of front yard, then pass through the WiFi moulds
Block broadcasts corresponding synchronizing information, so as to be located at other Home eNodeB in same setting regions according to institute with the Home eNodeB
The synchronizing information of WiFi module broadcast is stated, is realized synchronous with the clock between the Home eNodeB, that is to say, that at this point, described
Home eNodeB itself can be used as main Home eNodeB, so that other subsequent each Home eNodeB are realized mutually according to the Home eNodeB
Between clock synchronize.
Explanation in need again, the executive agent of this step 103 are generally also to be arranged in the Home eNodeB
WiFi module, the embodiment of the present invention also do not repeat this.
An embodiment of the present invention provides a kind of Home eNodeB synchronous method, Home eNodeB can start WiFi module after the power-up
And other each families that the transmission in the same area has WiFi signal are located at the Home eNodeB by WiFi module scanning
Base station, and, the master's house front yard that synchronizing information can be provided for the Home eNodeB is chosen from other each Home eNodeB scanned
Base station and according to the synchronizing information that is got from the WiFi signal transmitted by the main Home eNodeB measure with main Home eNodeB it
Between time deviation, and, according to the time deviation adjust Home eNodeB local clock to complete between main Home eNodeB
Clock synchronize.In the technical solution described in the embodiment of the present invention, due to can be by the WiFi module that is arranged in Home eNodeB
Synchronizing information is scanned to realize that the clock between Home eNodeB synchronizes, thus can be without modifying hardware without occupancy
On the basis of interface-free resources, achievees the purpose that more simply and quickly to realize the precise synchronization between Home eNodeB, improve family
Clock synchronous efficiency between base station and synchronous effect.
Embodiment two：
Second embodiment of the present invention provides the Home eNodeB that can be used for realizing method shown in the embodiment of the present invention one, such as Fig. 3
It is shown, it is the structural schematic diagram of Home eNodeB described in the embodiment of the present invention two, the Home eNodeB may include starting module
11 and WiFi module 12, wherein：
The starting module 11, which can be used for after the power is turned on starting in the Home eNodeB, to be arranged in the Home eNodeB
WiFi module；The WiFi module 12 can be used for scan with the Home eNodeB be located at it is in same setting regions, transmission have
Other each Home eNodeB of WiFi signal, and the WiFi signal transmitted by other each Home eNodeB scanned, from scanning
To other each Home eNodeB in, the main Home eNodeB of respective synchronization information can be provided for the Home eNodeB by choosing, and,
Corresponding synchronizing information is obtained from the WiFi signal transmitted by the main Home eNodeB, and is surveyed according to the synchronizing information got
The time deviation between the Home eNodeB and the main Home eNodeB is measured, and, the family is adjusted according to the time deviation
The local clock of front yard base station, it is synchronous to complete the clock between the Home eNodeB and the main Home eNodeB.
Specifically, the WiFi module 12 is particularly used in the WiFi transmitted by other each Home eNodeB scanned
Signal in from scanning to other each Home eNodeB, is chosen and carries specific synchronizing information mark in transmitted WiFi signal
Home eNodeB as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB；Alternatively, being arrived according to scanning
Other each Home eNodeB transmitted by WiFi signal, from other each Home eNodeB scanned, selected equipment priority level
Higher than the Home eNodeB any Home eNodeB as the master's house front yard that can provide respective synchronization information for the Home eNodeB
Base station.
Wherein, from other each Home eNodeB scanned, selected equipment priority level is appointed higher than the Home eNodeB
One Home eNodeB may include as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB：
From other each Home eNodeB scanned, selected equipment priority level is higher than other each families of the Home eNodeB
Front yard base station, and priority level and the family are chosen in other each Home eNodeB from equipment priority level higher than the Home eNodeB
The closest Home eNodeB in front yard base station as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, or
Person chooses the highest Home eNodeB of priority level from other each Home eNodeB that equipment priority level is higher than the Home eNodeB
As the main Home eNodeB that can provide respective synchronization information for the Home eNodeB.
Further, the WiFi module 12 is particularly used in measures according to the synchronizing information got in the following manner
Time deviation between the Home eNodeB and the main Home eNodeB：
According to the synchronizing information got, obtain carried in the synchronizing information for indicating the main Home eNodeB hair
The first time information T1 of corresponding sending time when sending the synchronizing information, and obtain for indicating the Home eNodeB from institute
State corresponding the second temporal information T2 for obtaining time when getting the synchronizing information in main Home eNodeB；
To the first data packet of master's house's front yard base station feedback, carried in first data packet for indicating to the master
Home eNodeB feeds back the third temporal information T3 of corresponding feedback time when the first data packet；
The second data packet of master's house's front yard base station feedback is received, is carried in second data packet for indicating described
4th temporal information T4 of main Home eNodeB corresponding feedback time when feeding back the second data packet to the Home eNodeB；
According to above-mentioned T1, T2, T3 and T4, it is calculated by the following formula to obtain the Home eNodeB and master's house's front yard base
Time deviation D between standing：
D=1/2[(T2-T1)+(T4-T3)]。
Correspondingly, after obtaining the time deviation D between the Home eNodeB and the main Home eNodeB, the WiFi
Module 12 can compensate the local clock of the Home eNodeB using the time deviation D, to realize the Home eNodeB
Clock between the main Home eNodeB is synchronous.
It should be noted that since position between Home eNodeB or communication environments may change and then cause at any time
Corresponding variation occurs for above-mentioned time-delay deviation, therefore, in embodiment of the present invention, in order to keep between Home eNodeB always
Synchronous, above-mentioned synchronizing process need in real time or periodically be carried out according to actual conditions, and the embodiment of the present invention does not repeat this.
Further, in embodiment of the present invention, if the WiFi module 12 can also be used to not scan WiFi letters
Number, or scan to the Home eNodeB and be located at other each Home eNodeB that in same setting regions, transmission has WiFi signal
And determine that there is no the master's houses that respective synchronization information can be provided for the Home eNodeB in other each Home eNodeB scanned
Front yard base station, then by broadcasting corresponding synchronizing information, so as to be located at other families in same setting regions with the Home eNodeB
The synchronizing information that front yard base station is broadcasted according to the WiFi module is realized synchronous with the clock between the Home eNodeB；Namely
It says, at this point, the Home eNodeB itself can be used as main Home eNodeB, so that other subsequent each Home eNodeB are according to the family
Realize that mutual clock synchronizes in base station.
An embodiment of the present invention provides a kind of Home eNodeB, the Home eNodeB can start WiFi module and lead to after the power-up
It crosses the WiFi module scanning and is located at other each Home eNodeB that the transmission in the same area has WiFi signal with the Home eNodeB,
And it is chosen from other each Home eNodeB scanned and can provide the main Home eNodeB of synchronizing information simultaneously for the Home eNodeB
According to from the synchronizing information that is got in the WiFi signal transmitted by the main Home eNodeB measure between main Home eNodeB when
Between deviation, and, according to the time deviation adjust Home eNodeB local clock to complete the clock between main Home eNodeB
It is synchronous.It is same due to that can be scanned by the WiFi module being arranged in Home eNodeB in the technical solution described in the embodiment of the present invention
Information is walked to realize that the clock between Home eNodeB synchronizes, thus can eat dishes without rice or wine to provide without occupancy without modifying to hardware
On the basis of source, achieve the purpose that more simply and quickly realize Home eNodeB between precise synchronization, improve Home eNodeB it
Between clock synchronous efficiency and synchronous effect.
It will be understood by those skilled in the art that the embodiment of the present invention can be provided as method, apparatus（Equipment）Or computer journey
Sequence product.Therefore, complete hardware embodiment, complete software embodiment or combining software and hardware aspects can be used in the present invention
The form of embodiment.Moreover, the present invention can be used in one or more wherein include computer usable program code calculating
Machine usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program of upper implementation
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, device（Equipment）With the flow chart of computer program product
And/or block diagram describes.It should be understood that each flow in flowchart and/or the block diagram can be realized by computer program instructions
And/or the combination of the flow and/or box in box and flowchart and/or the block diagram.These computer programs can be provided to refer to
Enable the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate
One machine so that by the instruction that computer or the processor of other programmable data processing devices execute generate for realizing
The device for the function of being specified in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of Home eNodeB synchronous method, which is characterized in that including：
Home eNodeB starts the WiFi module being arranged in the Home eNodeB after the power-up, and is scanned by the WiFi module
It is located at other each Home eNodeB that in same setting regions, transmission has WiFi signal with the Home eNodeB；
According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each Home eNodeB scanned, choosing
The main Home eNodeB of respective synchronization information can be provided for the Home eNodeB by taking；
Corresponding synchronizing information is obtained from the WiFi signal transmitted by the main Home eNodeB, and according to the synchronous letter got
Breath measures the time deviation between the Home eNodeB and the main Home eNodeB, and, institute is adjusted according to the time deviation
The local clock for stating Home eNodeB, it is synchronous to complete the clock between the Home eNodeB and the main Home eNodeB.
2. Home eNodeB synchronous method as described in claim 1, which is characterized in that the method further includes：
If not scanning WiFi signal by the WiFi module, or arrived and the Home eNodeB by WiFi module scanning
In same setting regions, transmission has other each Home eNodeB of WiFi signal and determines other each family's bases scanned
There is no the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB in standing, then
Corresponding synchronizing information is broadcasted by the WiFi module, so as to be located in same setting regions with the Home eNodeB
The synchronizing information that other Home eNodeB are broadcasted according to the WiFi module is realized synchronous with the clock between the Home eNodeB.
3. Home eNodeB synchronous method as claimed in claim 1 or 2, which is characterized in that according to other each families scanned
WiFi signal transmitted by base station, from other each Home eNodeB scanned, selection can provide phase for the Home eNodeB
The main Home eNodeB of synchronizing information is answered, including：
According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each Home eNodeB scanned, choosing
It can be the Home eNodeB to take and carry the Home eNodeB conduct of specific synchronizing information mark in transmitted WiFi signal
The main Home eNodeB of respective synchronization information is provided；Alternatively,
According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each Home eNodeB scanned, choosing
Taking equipment priority level is corresponding same as that can be provided for the Home eNodeB higher than any Home eNodeB of the Home eNodeB
Walk the main Home eNodeB of information.
4. Home eNodeB synchronous method as claimed in claim 3, which is characterized in that from other each Home eNodeB scanned
In, any Home eNodeB conduct of the selected equipment priority level higher than the Home eNodeB can provide phase for the Home eNodeB
The main Home eNodeB of synchronizing information is answered, including：
From other each Home eNodeB scanned, selected equipment priority level is higher than other each family's bases of the Home eNodeB
It stands, and chooses priority level and family's base in other each Home eNodeB from equipment priority level higher than the Home eNodeB
Closest Home eNodeB stand as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, alternatively,
Make from equipment priority level higher than the highest Home eNodeB of priority level is chosen in other each Home eNodeB of the Home eNodeB
For the main Home eNodeB of respective synchronization information can be provided for the Home eNodeB.
5. Home eNodeB synchronous method as claimed in claim 1 or 2, which is characterized in that surveyed according to the synchronizing information got
The time deviation between the Home eNodeB and the main Home eNodeB is measured, including：
According to the synchronizing information got, obtain carried in the synchronizing information for indicating that the main Home eNodeB sends institute
The first time information T1 of corresponding sending time when synchronizing information is stated, and is obtained for indicating the Home eNodeB from the master
Corresponding the second temporal information T2 for obtaining the time when synchronizing information is got in Home eNodeB；
To the first data packet of master's house's front yard base station feedback, carried in first data packet for indicating to the master's house front yard
The third temporal information T3 of corresponding feedback time when the first data packet of base station feedback；
The second data packet of master's house's front yard base station feedback is received, is carried in second data packet for indicating the master's house
4th temporal information T4 of front yard base station corresponding feedback time when feeding back the second data packet to the Home eNodeB；
According to above-mentioned T1, T2, T3 and T4, be calculated by the following formula to obtain the Home eNodeB and the main Home eNodeB it
Between time deviation D：D=1/2 [(T2-T1)-(T4-T3)].
6. a kind of Home eNodeB, which is characterized in that including：
Starting module, for starting the WiFi module being arranged in the Home eNodeB after the power-up；
WiFi module, for scan with the Home eNodeB be located at it is in same setting regions, transmission have WiFi signal it is each its
His Home eNodeB, and the WiFi signal transmitted by other each Home eNodeB scanned, from other each families scanned
In base station, the main Home eNodeB that respective synchronization information can be provided for the Home eNodeB is chosen, and, from master's house's front yard base
Corresponding synchronizing information is obtained in transmitted WiFi signal of standing, and the Home eNodeB is measured according to the synchronizing information got
With the time deviation between the main Home eNodeB, and, when adjusting the local of the Home eNodeB according to the time deviation
Clock, it is synchronous to complete the clock between the Home eNodeB and the main Home eNodeB.
7. Home eNodeB as claimed in claim 6, which is characterized in that
The WiFi module, if it is additionally operable to not scan WiFi signal, or scanning arrives and is located at same setting with the Home eNodeB
In region, transmission, which has other each Home eNodeB of WiFi signal and determines, is not present energy in other each Home eNodeB scanned
The main Home eNodeB that respective synchronization information is enough provided for the Home eNodeB, then broadcast corresponding synchronizing information, so that with described
Home eNodeB is located at the synchronizing information that other Home eNodeB in same setting regions are broadcasted according to the WiFi module, realize with
Clock between the Home eNodeB synchronizes.
8. Home eNodeB as claimed in claims 6 or 7, which is characterized in that
The WiFi module, specifically for the WiFi signal transmitted by other each Home eNodeB scanned, from scanning to
In other each Home eNodeB, the Home eNodeB conduct that specific synchronizing information mark is carried in transmitted WiFi signal is chosen
The main Home eNodeB of respective synchronization information can be provided for the Home eNodeB；Alternatively,
According to the WiFi signal transmitted by other each Home eNodeB scanned, from other each Home eNodeB scanned, choosing
Taking equipment priority level is corresponding same as that can be provided for the Home eNodeB higher than any Home eNodeB of the Home eNodeB
Walk the main Home eNodeB of information.
9. Home eNodeB as claimed in claim 8, which is characterized in that the WiFi module is specifically used in the following manner
From other each Home eNodeB scanned, selected equipment priority level is higher than any Home eNodeB conduct of the Home eNodeB
The main Home eNodeB of respective synchronization information can be provided for the Home eNodeB：
From other each Home eNodeB scanned, selected equipment priority level is higher than other each family's bases of the Home eNodeB
It stands, and chooses priority level and family's base in other each Home eNodeB from equipment priority level higher than the Home eNodeB
Closest Home eNodeB stand as the main Home eNodeB that can provide respective synchronization information for the Home eNodeB, alternatively,
Make from equipment priority level higher than the highest Home eNodeB of priority level is chosen in other each Home eNodeB of the Home eNodeB
For the main Home eNodeB of respective synchronization information can be provided for the Home eNodeB.
10. Home eNodeB as claimed in claims 6 or 7, which is characterized in that the WiFi module is specifically used for by following
Mode measures the time deviation between the Home eNodeB and the main Home eNodeB according to the synchronizing information got：
According to the synchronizing information got, obtain carried in the synchronizing information for indicating that the main Home eNodeB sends institute
The first time information T1 of corresponding sending time when synchronizing information is stated, and is obtained for indicating the Home eNodeB from the master
Corresponding the second temporal information T2 for obtaining the time when synchronizing information is got in Home eNodeB；
To the first data packet of master's house's front yard base station feedback, carried in first data packet for indicating to the master's house front yard
The third temporal information T3 of corresponding feedback time when the first data packet of base station feedback；
The second data packet of master's house's front yard base station feedback is received, is carried in second data packet for indicating the master's house
4th temporal information T4 of front yard base station corresponding feedback time when feeding back the second data packet to the Home eNodeB；
According to above-mentioned T1, T2, T3 and T4, be calculated by the following formula to obtain the Home eNodeB and the main Home eNodeB it
Between time deviation D：D=1/2 [(T2-T1)-(T4-T3)].
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| CN105680976B (en) * | 2016-03-29 | 2018-08-14 | 中国电子科技集团公司第二十九研究所 | A kind of distributed network method for synchronizing time |
| US11057937B2 (en) * | 2017-10-19 | 2021-07-06 | Qualcomm Incorporated | Relay node connection techniques in wireless backhaul systems |
| CN109905298B (en) * | 2017-12-11 | 2020-10-30 | 大唐移动通信设备有限公司 | Home base station, system and method for accessing home base station to network |
| CN110557823A (en) * | 2018-05-31 | 2019-12-10 | 华为技术有限公司 | clock synchronization method and device, terminal equipment, chip and readable storage medium |
| CN109150359B (en) * | 2018-09-30 | 2020-03-27 | 珠海格力电器股份有限公司 | Time synchronization method and device of air conditioning unit |
| CN111756561A (en) * | 2019-03-28 | 2020-10-09 | 上海寰泰电子有限公司 | Clock initialization configuration method and device |
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