CN102014479B - HeNB (Home eNodeB) synchronization method, system and device - Google Patents
HeNB (Home eNodeB) synchronization method, system and device Download PDFInfo
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- H04J3/00—Time-division multiplex systems
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- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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Abstract
The embodiment of the invention discloses HeNB (Home eNodeB) synchronization method, system and device. The method comprises the following steps that: layer information and synchronization information which are required during synchronization are transmitted between an HeNB and opposite-terminal equipment so that the layer information and the synchronization information are used for synchronization. By using the embodiment of the invention, HeNB fast synchronization is realized, HeNB synchronization time is reduced and electricity consumption during HeNB synchronization is reduced.
Description
Technical field
The present invention relates to communication field, relate in particular to synchronous method, system and the equipment of a kind of Home eNodeB HeNB.
Background technology
In mobile communications network, along with the requirement to data speed and covering of growing communication, traditional provides the method for access can not meet the demands with macro base station.At present, adopt cell splitting and in hot zones or some lower powered base stations of indoor deployment such as Home (Home eNodeB), Pico (small base station), Femto (femto cell), Relay (relay station) etc. can be good at addressing this problem.These lower powered base stations are applicable to can make operator provide and have more high data rate and business more cheaply under family's indoor environment, working environment or other little overlay environment.
To TDD (Time Division Duplexing, time division duplex) system, how to guarantee being synchronously an important problem between HeNB (Home eNodeB, Home eNodeB).High-precision synchronization scenario can guarantee the stable effectively operation of communication system, can also reduce the interference to existing macro base station.HeNB needs to register after start and synchronous process, and keeps synchronously, could provide service smoothly for user terminal.So on the basis of multilayer (multi-hop) synchronization scenario, hope can be kept synchronous under the prerequisite that guarantees synchronization accuracy as much as possible, shortens the out of alignment time of HeNB.
Synchronous for HeNB puts forward following several method in prior art:
(1) user terminal assist in synchronization: in the method, user terminal is especially at the user terminal of overlapping region, measure frequently and information reporting, keep synchronous between the base station, this scheme can realize distributed control, but the power consumption of the signaling consumption of network and user terminal all can be very large, and efficient is lower.
(2) GPS (Global Positioning System, global positioning system) is synchronous: in the method, setting up synchronous between the base station by GPS, is the most frequently used method that keeps at present synchronous between macro base station, and synchronous precision is very high.Its shortcoming is: synchronously easily be subject to the impact of satellite-signal power, weather and landform, and need equipment GPS receiver, realize that cost is higher, is not suitable for home base station network.
(3) synchronization among base stations: in the method, realize mutual synchronous by the monitoring mechanism between the base station, be that certain base station can keep synchronous by the monitoring another one CRS of synchronising base station (CommonReference Signal, public reference signal) signal.For Home eNodeB, Home eNodeB can be undertaken synchronously by the signal of macro base station around monitoring, if there is no adjacent macro base station, can monitor on every side that the signal of other synchronous Home eNodeB carries out synchronously, is a kind of synchronization mechanism of layering.
At present, the scheme of above-mentioned synchronization among base stations is extensively approved at present, is also relatively most suitable a kind of synchronization scenario concerning Home eNodeB.Consider the impact of the factors such as communication environments, network topology, for the Home eNodeB that can't directly receive the macro base station signal, can utilize the synchronous method of multilayer (multi-hop).Take networking structure shown in Figure 1 as example, HeNB1 is synchronizeed with macro base station, and HeNB2 can be undertaken synchronously by HeNB1.Defining Sync eNB in Fig. 1 (synchronous target BS) is layer 0, and the base station of utilization layer 0 is carried out synchronous base station and is layer 1 (HeNB1), and the base station of utilization layer 1 is carried out synchronous base station and is layer 2 (HeNB2), the like.
The base station of every one deck need to send the information about layer, and at present, the base station will send the number of plies (2 bit) of this base station and the information (1 bit) of whether synchronizeing with eNB.These information can: transmit in the MIB (MasterInformation Block, host system message block); Perhaps transmit in SIB1 (System InformationBlock, system information block 1); Perhaps giving lower one deck base station configuration MBSFN (MulticastBroadcast Single Frequency Network, Multicast Broadcast Single Frequency Network) subframe to carry out synchronous subframe transmission of monitoring.Simultaneously, webmaster issues the configuration about the synchronous subframe of every one deck.For fear of the impact for user terminal, these synchronous subframes realize by the mode of configuration MBSFN.
HeNB first registers after start, then the signal of adjacent base station around searching for, system information by reading adjacent base station on every side or monitor layer information (2bit) and the synchronizing information (1bit) that the MBSFN subframe is obtained respective base station, according to around the layer information of all adjacent base stations, HeNB can select number of plies minimum base station to carry out synchronously as the object synchronization base station.
Problems of the prior art are: for mutually monitoring the synchronous scheme that realizes between the base station, HeNB need to be after the layer information of obtaining one by one each adjacent base station and synchronizing information, by relatively obtaining the number of plies minimum adjacent base station (number of plies=N), and carry out with it synchronous, this moment this base station number of plies=N+1.Be used for keeping this synchronous base station signal if has lost the base station, synchronously can not continue to keep, need to upgrade synchronising base station.In view of network environment becomes increasingly complex, if the adjacent area quantity of HeNB is more, the existing synchronizing information that travels through adjacent base station by eating dishes without rice or wine can expend a large amount of time and electric weight, causes the HeNB out of alignment time long, has a strong impact on user's impression.
Summary of the invention
Embodiments of the invention provide synchronous method, system and the equipment of a kind of Home eNodeB HeNB, are used for realizing the Fast synchronization of HeNB, reduce the synchronous required time of HeNB and save the synchronous electric weight that consumes of HeNB.
Embodiments of the invention provide the synchronous method of a kind of Home eNodeB HeNB, comprising:
Home eNodeB HeNB is by being connected with interface that opposite equip. is set up, synchronize required layer information and synchronizing information with transmitting between opposite equip., with layer information and synchronizing information for synchronously.
Wherein, described Home eNodeB HeNB is with before opposite equip. is set up interface and is connected, and also comprise: described HeNB monitors layer information and the synchronizing information of obtaining each adjacent base station by eating dishes without rice or wine, and therefrom selects an adjacent base station to carry out just subsynchronous;
Transmit between described HeNB and opposite equip. and synchronize required layer information and synchronizing information and comprise: layer information and the synchronizing information interface connection of passing through foundation of described HeNB after will be just subsynchronous sends to opposite equip.; Layer information and the synchronizing information of the described HeNB of described opposite equip. storage, described opposite equip. comprises HeNB or HeNB gateway.
Wherein, transmit between described HeNB and opposite equip. and synchronize required layer information and synchronizing information, comprising:
Described HeNB sends by the interface connection of setting up the layer information after changing and synchronizing information when the layer information of equipment of itself and synchronizing information change to opposite equip.; Described opposite equip. upgrades layer information and the synchronizing information of described HeNB, and described opposite equip. comprises HeNB or HeNB gateway.
Wherein, also comprise: described HeNB receives opposite equip. and connects layer information and synchronizing information and the storage of transmission by the interface of described foundation, and described opposite equip. comprises base station eNB, HeNB or HeNB gateway.
Wherein, described HeNB is used for layer information and synchronizing information synchronously to comprise:
When described HeNB can not be with low one deck base station synchronization of originally keeping, according to layer information and the synchronizing information of each adjacent base station of preserving, select the minimum adjacent base station of the number of plies or will originally keep synchronous low one deck base station and set up synchronously as new synchronising base station with the adjacent base station of layer.
Wherein, described HeNB is used for layer information and synchronizing information synchronously to comprise:
Described HeNB normally keeps when synchronous, according to layer information and the synchronizing information of each adjacent base station of preserving, selects to set up synchronously as new synchronising base station than originally keeping the synchronous lower adjacent base station of the number of plies, low one deck base station.
Wherein, described interface is X2 interface or S1 interface.
Embodiments of the invention also provide a kind of Home eNodeB HeNB, comprising:
Interface unit is used for setting up interface with opposite equip. and is connected;
The information interaction unit is used for being connected by the interface that described interface unit and opposite equip. are set up, and synchronizes required layer information and synchronizing information with transmission between opposite equip..
Wherein, also comprise:
Lock unit, described lock unit is used for: before the interface of described interface unit foundation and opposite equip., monitor layer information and the synchronizing information of obtaining each adjacent base station by eating dishes without rice or wine, therefrom select an adjacent base station to carry out just subsynchronous; Also be used for: when needs upgrade synchronising base station, by layer information and the synchronizing information through each adjacent base station that the interactive interfacing process obtains of storage, therefrom select an adjacent base station to carry out synchronous renewal;
Described information interaction unit also is used for: the layer information after subsynchronous at the beginning of described and synchronizing information are sent to opposite equip. by the interface connection of setting up; Layer information and the synchronizing information of the described HeNB of described opposite equip. storage, described opposite equip. comprises HeNB or HeNB gateway.
Wherein, described information interaction unit also is used for: when the layer information of equipment of itself and synchronizing information change, the layer information after changing and synchronizing information are sent to opposite equip. by the interface connection of setting up; Described opposite equip. upgrades layer information and the synchronizing information of described HeNB, and described opposite equip. comprises HeNB or HeNB gateway.
Wherein, described information interaction unit also is used for: receive opposite equip. and connect layer information and the synchronizing information that sends and store by the interface of setting up, described opposite equip. comprises base station eNB, HeNB or HeNB gateway.
Wherein, described lock unit also is used for:
When can not be with low one deck base station synchronization of originally keeping, according to layer information and the synchronizing information of each adjacent base station of preserving, select the minimum adjacent base station of the number of plies or will originally keep synchronous low one deck base station and set up synchronously as new synchronising base station with the adjacent base station of layer.
Wherein, described lock unit also is used for:
Normally keeping when synchronous, according to layer information and the synchronizing information of each adjacent base station of preserving, selecting to set up synchronously as new synchronising base station than originally keeping the synchronous lower adjacent base station of the number of plies, low one deck base station.
Wherein, described interface is X2 interface or S1 interface.
Embodiments of the invention also provide a kind of communication system, comprise HeNB, eNB and HeNB gateway,
Described Home eNodeB HeNB, be used for being connected by the interface with opposite equip. foundation, synchronize required layer information and synchronizing information with transmitting between opposite equip., be used for described layer information and synchronizing information synchronous, the opposite equip. of described HeNB comprises HeNB, eNB and HeNB gateway, and described interface is X2 interface or S1 interface.
Wherein, described HeNB, concrete be used for eat dishes without rice or wine for the first time to monitor synchronous after or the layer information of equipment of itself and synchronizing information when changing, to layer information and the synchronizing information of described opposite equip. transmission self, described opposite equip. comprises HeNB or HeNB gateway.
Wherein, described HeNB, eNB or HeNB gateway also are used for the layer information of self is connected with synchronizing information to be connected to HeNB with the interface of HeNB foundation sending.
Wherein, described HeNB also is used for:
When can not be with low one deck base station synchronization of originally keeping, according to layer information and the synchronizing information of each adjacent base station of preserving, select the minimum adjacent base station of the number of plies or will originally keep synchronous low one deck base station and set up synchronously as new synchronising base station with the adjacent base station of layer; Or
Normally keeping when synchronous, according to layer information and the synchronizing information of each adjacent base station of preserving, selecting to set up synchronously as new synchronising base station than originally keeping the synchronous lower adjacent base station of the number of plies, low one deck base station.
Compared with prior art, the present invention has the following advantages:
In embodiments of the invention, carry out the mutual of layer information and synchronizing information by the interface between HeNB and opposite equip., realized the Fast synchronization of HeNB, reduced the synchronous required time of HeNB and saved the synchronous electric weight that consumes of HeNB.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a networking structure schematic diagram of the synchronization among base stations of prior art;
Fig. 2 is the networking structure schematic diagram that in the R9 of prior art, E-UTRAN comprises HeNB;
Fig. 3 is the synchronous method flow chart of the HeNB that provides in the embodiment of the present invention;
Fig. 4 is the networking scene schematic diagram that the synchronous information sending method that provides in the embodiment of the present invention is used;
Fig. 5 is the networking scene schematic diagram that the synchronizing information update method that provides in the embodiment of the present invention is used;
Fig. 6 is the networking scene schematic diagram that the synchronous method again after the HeNB step-out that provides in the embodiment of the present invention is used;
Fig. 7 is that the HeNB that provides in the embodiment of the present invention initiatively carries out the networking scene schematic diagram that synchronous updating method is used;
Fig. 8 is the structural representation of the HeNB that provides in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The network architecture schematic diagram that E-UTRAN (Evolved UniversalTerrestrial Radio Access Network, the general continental rise wireless access network of evolution) comprises HeNB in R9 in prior art (Release 9, version 9) as shown in Figure 2.It is X2 interface between eNB, it is the S1 interface between eNB and MME, HeNB can and MME (Mobility Management Entity, Mobility Management Entity) directly connect, also can pass through a centralized node HeNB GW (HeNB Gateway, femto gateway) be linked into MME, there is no interface between HeNB, HeNB can only be connected with a HeNB GW simultaneously.In the above-mentioned network architecture, between HeNB, between HeNB and eNB, between eNB and HeNB GW and all there is no X2 interface between HeNB and HeNB GW, the mobility flow processs such as eNB config update and switching all will be completed by core net node.
Problem to HeNB mobile management optimization has been proposed in R10, between HeNB, between HeNB and eNB, between eNB and HeNB GW or set up X2 interface between HeNB and HeNB GW, make some mobility flow process directly to transfer to destination node through core net, reduce the impact on core net node.
Consider that in prior art, HeNB can expend a large amount of time and electric weight through eating dishes without rice or wine to read each adjacent base station system information or MBSFN subframe acquisition layer information and synchronizing information, therefore the synchronous method of a kind of HeNB is provided in embodiments of the invention, interactive interfacing layer information and synchronizing information by setting up between eNB, HeNB or HeNB GW, wherein interface can be S1 interface or X2 interface.The method comprises as shown in Figure 3:
Step s301, HeNB be by being connected with interface that opposite equip. is set up, synchronizes required layer information and synchronizing information with transmission between opposite equip.;
Step s302, HeNB are used for layer information and synchronizing information synchronous.
Below in conjunction with concrete execution mode, the embodiment of the synchronous method of the HeNB that the description embodiment of the present invention provides.
In embodiments of the invention one, a kind of method that provides synchronizing information to send.
Concrete, when HeNB newly starts shooting, do not connect with any eNB, HeNB or HeNB GW, need to use the Monitor scheme of eating dishes without rice or wine between base station of the prior art to realize just subsynchronous.Between the HeNB in HeNB and opposite equip., eNB or HeNB GW by interface (comprising X2 interface or S1 interface) when connecting, HeNB sends self layer information and synchronizing information to above-mentioned opposite equip., each opposite equip. is stored layer information and the synchronizing information of this HeNB and safeguard.A concrete networking scene schematic diagram as shown in Figure 4, synchronizing information transmission flow wherein comprises:
(1) after HeNB1 starts, set up with macro base station eNB1 according to the Monitor scheme of eating dishes without rice or wine between the base station and synchronize; Concrete, can select number of plies minimum base station to carry out synchronously as the object synchronization base station;
(2) HeNB1 sets up X2 interface by X2 interface (this sentences X2 interface is example) with HeNB2, HeNB3 respectively, sets up at X2 interface and sends self layer information and synchronizing information in process;
(3) HeNB2 and HeNB3 preserve layer information and the synchronizing information about HeNB1 that HeNB1 sends.
In embodiments of the invention two, a kind of method that provides synchronizing information to upgrade.
Concrete, when the layer information of certain HeNB with or synchronizing information when changing, this HeNB via interface message (X2 interface or S1 interface) to the layer information and the synchronizing information that send as the HeNB of opposite equip. or HeNB GW after changing, each opposite equip. is stored layer information and the synchronizing information of this HeNB and safeguard after receiving the information of this HeNB transmission.A concrete networking scene schematic diagram as shown in Figure 5, synchronizing information wherein more new technological process comprises:
(1) layer information or the synchronizing information of HeNB1 change;
(2) HeNB1 with the X2 interface message (this sentences X2 interface message is example) of HeNB2, HeNB3 in upgrade self layer information and synchronizing information;
(3) HeNB2 and HeNB3 preserve layer information and/or the synchronizing information that HeNB1 sends.
In embodiments of the invention three, provide the synchronous method again after a kind of HeNB step-out.
Concrete, when certain HeNB has lost when being used for keeping synchronous low one deck base station signal, synchronously can not continue to keep, in the layer information and synchronizing information list of self maintained, select number of plies minimum/or carry out synchronously with the adjacent base station of the base station of missed synchronization (namely originally keeping that low one deck base station of synchronizeing) same layer.A concrete networking scene schematic diagram as shown in Figure 6, the synchronous flow process again after HeNB step-out wherein comprises:
(1) HeNB1 sets up and the synchronizeing of HeNB4, that is: HeNB4 is the synchronising base station of HeNB1;
(2) HeNB4 closes, cause HeNB1 lost with HeNB4 between keep the signal of synchronizeing, HeNB1 step-out;
(3) layer information and the synchronizing information list of the opposite equip. of HeNB1 search self preservation, foundation is synchronizeed with eNB1's.
In embodiments of the invention four, provide a kind of HeNB initiatively to carry out the synchronous method of upgrading.
Concrete, keep synchronous even HeNB is normal, in the layer information and synchronizing information list of HeNB in self maintained, discovery has a number of plies than current when keeping the lower base station of the synchronous low one deck base station number of plies, also can carry out with it synchronously reducing the number of plies of this base station.A concrete networking scene schematic diagram as shown in Figure 7, HeNB wherein initiatively carries out the synchronous flow process of upgrading and comprises:
(1) before eNB2 did not start, HeNB1 built on the synchronous of HeNB4.ENB2 starts, and sets up X2 interface with HeNB1;
(2) HeNB1 receives layer information and the synchronizing information that eNB2 sends by X2 interface (this sentences X2 interface is example), finds that the number of plies of eNB2 is lower than the number of plies of HeNB4;
(3) HeNB1 sets up and the synchronizeing of eNB2, and the synchronizeing of interruption and HeNB4.
Need to prove, in above-mentioned each embodiment, all as an example of X2 interface message example, the specific embodiment of the present invention has been described.In the application of reality, consider the factors such as X2 interface framework possible in the R10 system and S1 interface architecture, can use the S1 interface to carry out the transmission of above-mentioned layer information and synchronizing information.These embodiments of the invention are not restricted.
In the said method that embodiments of the invention provide, carry out the mutual of layer information and synchronizing information by the interface between HeNB and opposite equip., realized the Fast synchronization of HeNB, reduced the synchronous required time of HeNB and saved the synchronous electric weight that consumes of HeNB.
Embodiments of the invention also provide a kind of communication system, comprise HeNB, eNB and HeNB gateway, wherein:
Home eNodeB HeNB, be used for being connected by the interface with opposite equip. foundation, synchronize required layer information and synchronizing information with transmitting between opposite equip., be used for layer information and synchronizing information synchronous, the opposite equip. of HeNB comprises HeNB, eNB and HeNB gateway, and interface is X2 interface or S1 interface.
In addition, for HeNB, eNB or HeNB gateway, also be used for the layer information of self is connected to set up with HeNB with synchronizing information interface is connected to other HeNB transmission, the HeNB that receives information stores the layer information and the synchronizing information that receive.
HeNB also is used for:
(1) eat dishes without rice or wine for the first time to monitor synchronous after or the layer information of equipment of itself and synchronizing information when changing, to layer information and the synchronizing information of opposite equip. transmission self, opposite equip. comprises HeNB or HeNB gateway.
(2) when can not be with low one deck base station synchronization of originally keeping, according to layer information and the synchronizing information of each adjacent base station of preserving, select the minimum adjacent base station of the number of plies or will originally keep synchronous low one deck base station and set up synchronously as new synchronising base station with the adjacent base station of layer.
(3) normally keeping when synchronous, according to layer information and the synchronizing information of each adjacent base station of preserving, selecting to set up synchronously as new synchronising base station than originally keeping the synchronous lower adjacent base station of the number of plies, low one deck base station.
Embodiments of the invention also provide a kind of Home eNodeB HeNB, as shown in Figure 8, comprising:
Concrete:
For information interaction unit 20, concrete being used for realizes but is not limited to realize following functions:
(1) the layer information after subsynchronous at the beginning of lock unit 30 and synchronizing information are sent to opposite equip. by the interface connection of setting up; Layer information and the synchronizing information of opposite equip. storage HeNB, opposite equip. comprises HeNB or HeNB gateway;
(2) when the layer information of equipment of itself and synchronizing information change, the layer information after changing and synchronizing information are sent to opposite equip. by the interface connection of setting up; Layer information and the synchronizing information of opposite equip. updated stored, opposite equip. comprise HeNB or HeNB gateway.
(1) before the interface of interface unit 10 foundation and opposite equip., monitor layer information and the synchronizing information of obtaining each adjacent base station by eating dishes without rice or wine, therefrom select an adjacent base station to carry out just subsynchronous;
(2) when needs upgrade synchronising base station, by layer information and the synchronizing information through each adjacent base station that the interactive interfacing process obtains of storage, therefrom select an adjacent base station to carry out synchronous renewal;
(3) when can not be with low one deck base station synchronization of originally keeping, according to layer information and the synchronizing information of each adjacent base station of preserving, select the minimum adjacent base station of the number of plies or will originally keep synchronous low one deck base station and set up synchronously as new synchronising base station with the adjacent base station of layer.
(4) normally keeping when synchronous, according to layer information and the synchronizing information of each adjacent base station of preserving, selecting to set up synchronously as new synchronising base station than originally keeping the synchronous lower adjacent base station of the number of plies, low one deck base station.
In system and equipment that embodiments of the invention provide, carry out the mutual of layer information and synchronizing information by the interface between HeNB and opposite equip., realized the Fast synchronization of HeNB, reduced the synchronous required time of HeNB and saved the synchronous electric weight that consumes of HeNB.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the unit in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the unit in the device in embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.A unit can be merged in the unit of above-described embodiment, also can further split into a plurality of subelements.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
Claims (17)
1. the synchronous method of a Home eNodeB HeNB, is characterized in that, comprising:
Home eNodeB HeNB is by being connected with interface that opposite equip. is set up, synchronize required layer information and synchronizing information with transmitting between opposite equip., with layer information and synchronizing information for synchronously; Wherein, transmit between described and opposite equip. and synchronize required layer information and synchronizing information, comprise: described HeNB sends by the interface connection of setting up the layer information after just subsynchronous and synchronizing information to opposite equip., or, described HeNB sends by the interface connection of setting up the layer information after changing and synchronizing information when the layer information of equipment of itself and synchronizing information change to opposite equip..
2. the method for claim 1, is characterized in that,
Described Home eNodeB HeNB is with before opposite equip. is set up interface and is connected, and also comprise: described HeNB monitors layer information and the synchronizing information of obtaining each adjacent base station by eating dishes without rice or wine, and therefrom selects an adjacent base station to carry out just subsynchronous;
Described HeNB connects the layer information after just subsynchronous and synchronizing information after the opposite equip. transmission by the interface of setting up, also comprise: layer information and the synchronizing information of the described HeNB of described opposite equip. storage, described opposite equip. comprises HeNB or HeNB gateway.
3. the method for claim 1, is characterized in that,
Described HeNB is when the layer information of equipment of itself and synchronizing information change, layer information after changing and synchronizing information are connected after opposite equip. sends by the interface of setting up, also comprise: described opposite equip. upgrades layer information and the synchronizing information of described HeNB, and described opposite equip. comprises HeNB or HeNB gateway.
4. the method for claim 1, it is characterized in that, transmit between described and opposite equip. and synchronize required layer information and synchronizing information, comprise: described HeNB receives opposite equip. and connects layer information and synchronizing information and the storage of transmission by the interface of described foundation, and described opposite equip. comprises macro base station eNB, HeNB or HeNB gateway.
5. method as described in any one in claims 1 to 3, is characterized in that, described HeNB with layer information and
Synchronizing information is used for synchronous, comprising:
When described HeNB can not be with low one deck base station synchronization of originally keeping, according to layer information and the synchronizing information of each adjacent base station of preserving, select the minimum adjacent base station of the number of plies or will originally keep synchronous low one deck base station and set up synchronously as new synchronising base station with the adjacent base station of layer.
6. method as described in any one in claim 1 to 4, is characterized in that, described HeNB is used for layer information and synchronizing information synchronously to comprise:
Described HeNB normally keeps when synchronous, according to layer information and the synchronizing information of each adjacent base station of preserving, selects to set up synchronously as new synchronising base station than originally keeping the synchronous lower adjacent base station of the number of plies, low one deck base station.
7. method as described in any one in claim 1 to 4, is characterized in that, described interface is X2 interface or S1 interface.
8. a Home eNodeB HeNB, is characterized in that, comprising:
Interface unit is used for setting up interface with opposite equip. and is connected;
The information interaction unit is used for being connected by the interface that described interface unit and opposite equip. are set up, and synchronizes required layer information and synchronizing information with transmission between opposite equip.; Concrete for the layer information after just subsynchronous and synchronizing information are sent to opposite equip. by the interface connection of setting up, or, when the layer information of equipment of itself and synchronizing information change, the layer information after changing and synchronizing information are sent to opposite equip. by the interface connection of setting up.
9. HeNB as claimed in claim 8, is characterized in that, also comprises:
Lock unit, described lock unit is used for: before the interface of described interface unit foundation and opposite equip., monitor layer information and the synchronizing information of obtaining each adjacent base station by eating dishes without rice or wine, therefrom select an adjacent base station to carry out just subsynchronous; Also be used for: when needs upgrade synchronising base station, by layer information and the synchronizing information through each adjacent base station that the interactive interfacing process obtains of storage, therefrom select an adjacent base station to carry out synchronous renewal;
Layer information and synchronizing information after subsynchronous at the beginning of described information interaction unit sends to opposite equip. described are used for making described opposite equip. to store layer information and the synchronizing information of described HeNB, and described opposite equip. comprises HeNB or HeNB gateway.
10. HeNB as claimed in claim 8, it is characterized in that, described information interaction unit sends to layer information and the synchronizing information after opposite equip. changes, and is used for making described opposite equip. to upgrade layer information and the synchronizing information of described HeNB, and described opposite equip. comprises HeNB or HeNB gateway.
11. HeNB as claimed in claim 8, it is characterized in that, described information interaction unit also is used for: receive opposite equip. and connect layer information and synchronizing information and the storage that sends by the interface of setting up, described opposite equip. comprises macro base station eNB, HeNB or HeNB gateway.
12. HeNB as claimed in claim 9 is characterized in that, described lock unit also is used for:
When can not be with low one deck base station synchronization of originally keeping, according to layer information and the synchronizing information of each adjacent base station of preserving, select the minimum adjacent base station of the number of plies or will originally keep synchronous low one deck base station and set up synchronously as new synchronising base station with the adjacent base station of layer.
13. HeNB as claimed in claim 9 is characterized in that, described lock unit also is used for:
Normally keeping when synchronous, according to layer information and the synchronizing information of each adjacent base station of preserving, selecting to set up synchronously as new synchronising base station than originally keeping the synchronous lower adjacent base station of the number of plies, low one deck base station.
14. HeNB as described in any one in claim 8 to 11 is characterized in that, described interface is X2 interface or S1 interface.
15. a communication system is characterized in that, comprises macro base station eNB, Home eNodeB HeNB or HeNB gateway,
Described Home eNodeB HeNB, be used for being connected by the interface with opposite equip. foundation, synchronize required layer information and synchronizing information with transmitting between opposite equip., be used for described layer information and synchronizing information synchronous, the opposite equip. of described HeNB comprises macro base station eNB, HeNB or HeNB gateway, and described interface is X2 interface or S1 interface; Monitor when eating dishes without rice or wine for the first time synchronous after or the layer information of equipment of itself and synchronizing information when changing, described HeNB specifically is used for to layer information and the synchronizing information of described opposite equip. transmission self.
16. communication system as claimed in claim 15 is characterized in that,
Described macro base station eNB, HeNB or HeNB gateway also are used for the layer information of self is connected with synchronizing information to be connected to HeNB with the interface of HeNB foundation sending.
17. communication system as described in claim 15 or 16 is characterized in that, described HeNB also is used for:
When can not be with low one deck base station synchronization of originally keeping, according to layer information and the synchronizing information of each adjacent base station of preserving, select the minimum adjacent base station of the number of plies or will originally keep synchronous low one deck base station and set up synchronously as new synchronising base station with the adjacent base station of layer; Or
Normally keeping when synchronous, according to layer information and the synchronizing information of each adjacent base station of preserving, selecting to set up synchronously as new synchronising base station than originally keeping the synchronous lower adjacent base station of the number of plies, low one deck base station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910244454 CN102014479B (en) | 2009-12-31 | 2009-12-31 | HeNB (Home eNodeB) synchronization method, system and device |
| PCT/CN2010/079328 WO2011079678A1 (en) | 2009-12-31 | 2010-12-01 | Synchronization method, system and device of home enodeb |
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| CN 200910244454 CN102014479B (en) | 2009-12-31 | 2009-12-31 | HeNB (Home eNodeB) synchronization method, system and device |
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| CN105657814B (en) * | 2012-05-29 | 2019-01-08 | 电信科学技术研究院 | The method and apparatus of base station synchronization |
| WO2014176781A1 (en) * | 2013-05-03 | 2014-11-06 | Blackberry Limited | Transmitting a synchronization indication |
| US9750044B2 (en) * | 2013-05-10 | 2017-08-29 | Qualcomm Incorporated | Methods and apparatus for network synchronization |
| CN104735770A (en) * | 2013-12-18 | 2015-06-24 | 中兴通讯股份有限公司 | Synchronization method, transmission node, terminal and communication system |
| CN104982078A (en) * | 2013-12-26 | 2015-10-14 | 华为技术有限公司 | Clock synchronization method, device, and eRelay remote node (RRN) |
| WO2015109897A1 (en) * | 2014-01-24 | 2015-07-30 | 中兴通讯股份有限公司 | Configuration method, node and system for realizing air interface synchronization |
| FR3047384B1 (en) * | 2016-01-28 | 2018-11-23 | Sagemcom Broadband Sas | METHOD FOR SYNCHRONIZING A GATEWAY IN A LORA NETWORK |
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| CN1905405A (en) * | 2005-07-26 | 2007-01-31 | 中兴通讯股份有限公司 | Space interface synchronous method |
| EP2012446A1 (en) * | 2007-07-06 | 2009-01-07 | Nokia Corporation | Higher layer synchronization between base stations |
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