CN101686509B - Base station gateway, method of base station gateway for realizing base station switching, and data processing method - Google Patents
Base station gateway, method of base station gateway for realizing base station switching, and data processing method Download PDFInfo
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- CN101686509B CN101686509B CN200810211726.4A CN200810211726A CN101686509B CN 101686509 B CN101686509 B CN 101686509B CN 200810211726 A CN200810211726 A CN 200810211726A CN 101686509 B CN101686509 B CN 101686509B
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Abstract
The invention provides a base station gateway, a method of the base station gateway for realizing base station switching, and a data processing method, wherein the base station gateway comprises a storage module, an analysis module, a judgment module, a switching control module and a forwarding module, wherein the storage module stores first marks of at least two household base stations; the analysis module uses the protocol of an application part of a wireless access network to analyze a switching request message sent from a source household base station and acquire a second mark of a target household base station; the judgment module searches the storage module, judges whether the second mark is one of the first marks or not, and acquires a judging result; the switching control module interacts with the source household base station and the target household base station when the second mark is one of the first marks, and uses the protocol of the application part of the wireless access network to realize the switching from the source household base station to the target household base station; and the forwarding module forwards the switching request message to a core network when the second mark is not one of the first marks. The base station gateway of the embodiment of the invention reduces the processing pressure of the core network, and reduces the time of switching processing.
Description
Technical field
The present invention relates to UMTS (Universal Mobile Telecommunications System, be global mobile communication system) and LTE (Long Term Evolution, Long Term Evolution) handoff technique in network, particularly a kind of base-station gateway, base-station gateway are realized method and the data processing method that switch base station.
Background technology
According to statistics, nearly 70% telephone traffic is produced by indoor place.From current 2G/2.5G network operation through examining, mobile subscriber has 60% time indoor, owing to being subject to high data rate, long Distance Transmission and the joint effect that penetrate the factors such as decline of building to wireless signal, the good network coverage particularly indoor covering is subject to operator and manufacturer's growing interest.
Femtocell (femtocell) technology is the solution of the indoor covering of a kind of expanding mobile communication, be applicable to family and office environment, the speech that user mobile phone can be sent and data call are transferred to the 3G core network based on standard interface, can be connected to any existing IP-based transmission network.
3GPP is positive parallel propelling Femtocell at present, the namely Standardization work of Home eNodeB under UMTS architectural framework and under LTE architectural framework.
Figure 1 shows that existing UMTS Organization Chart, and Fig. 2 is the Organization Chart of definite 3G Home Node B (3G HNB).From Fig. 1 and Fig. 2, in the framework of 3G HNB, the function of RNC that 3G HNB is integrated, is Iuh interface between 3G HNB and 3G HNB Gateway (3G HNB gateway).Iuh interface the function of Iu interface, is also supported the registration of 3G HNB except supporting, UE (User Equipment, subscriber equipment) is to the registration of HNB, the functions such as HNB GW discovery.3G HNB GW is Iu interface to core-network side.Note that in traditional UMTS framework, between RNC, have Iur interface, between 3G HNB GW, also there is no interface.
What Fig. 3 showed is the framework of long-term evolving network (LTE), network architecture flattening, IPization.Access Network consists of eNodeB (evolvede NodeB, evolved NodeB).Between eNodeB, by X2 interface, adopt mesh (grid) mode to interconnect, eNodeB connects by S1 interface and EPC (Evolved Packet Core, Evolved Packet Core) simultaneously.S1 interface is supported MME, S-GW and the eNodeB annexation of multi-to-multi.
Home eNodeB is referred to as Home eNode B (HeNB) in LTE, also by positive discussion.Due to a large amount of HeNB core network access, band is served the consideration of safety and control, also needs to introduce the network element of similar 3G HNB GW.Meanwhile, in general, consider cost factor, X2 interface is not set between HeNB yet.
In 3GPP standard, for Home eNodeB, introduced the concept of CSG (Closed Subscriber Group, closed user group).That is to say, mobile subscriber's access to family base station needs authority, and which HNB mobile subscriber can access is decided by the CSG at its place.Generally have two kinds of CSG deployment way, a kind of is single-cell CSG (single community CSG), is also that mobile subscriber can only access one family base station.This is a kind of popular CSG deployment way: each family has one family base station to come for chartered kinsfolk or friend.According to log-on message, mobile subscriber can only access one or several HNB that belongs to different CSG; Another kind is multi-cell CSG (many communities CSG) mode, is also that several HNB belong to a CSG.This multi-cell CSG mode is generally deployed in enterprise, campus and large-scale community, and mobile subscriber can access the several HNB that belong to a CSG.
In realizing process of the present invention, inventor finds that prior art at least exists following problem:
At user plane, owing to there is no direct interface between HNB, data may be lost in the process of switching;
At control plane, in prior art, HNB GW in the framework of HNB mainly at TNL (Transport Network Layer, transport network layer) play the effect focusing on distributing data carrying and signaling bear, to RNL (Radio Network layer, wireless network layer) be transparent forwarding, this just causes the switching of HNB to have processing time length and the mutual loaded down with trivial details shortcoming of core network signalling.
In superincumbent description process, the UMTS of take has illustrated the problem that prior art exists as example, but same problem is also present in LTE.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of base-station gateway, base-station gateway to realize method and the data processing method that switch base station, reduces the processing time that switch base station, when base station is switched and the signaling of core net become simple.
To achieve these goals, the embodiment of the present invention provides a kind of base-station gateway, administers at least two Home eNodeB that belong to same many communities closed user group, wherein, comprising:
Memory module, for the first sign of at least two Home eNodeB described in preserving;
Analysis module, for the handover request message of utilizing Radio Access Network Application Part protocal analysis source Home eNodeB to send, obtains the second sign of the target Home eNodeB in described handover request;
Judge module, for searching described memory module, judges that whether described the second sign is in described the first sign, obtains a judged result;
Switching controls module, for described judged result indicate described second be designated described first sign one time, mutual with described source Home eNodeB and target Home eNodeB, utilize Radio Access Network Application Part agreement to realize the switching from described source Home eNodeB to target Home eNodeB;
Forwarding module, in described judged result, indicate described second sign be not described first sign one time, to core net, forward described handover request message.
Above-mentioned base-station gateway, wherein, described Home eNodeB is Home eNodeB under global mobile communication system or the Home eNodeB of the evolution in long-term evolving network.
Above-mentioned base-station gateway, wherein, described switching controls module specifically comprises:
The first Transmit-Receive Unit for receiving described handover request message, and sends and switches requirement order to described target Home eNodeB after receiving described handover request message;
Path Setup unit, for setting up the transmission channel of transport network layer with described target Home eNodeB;
The second Transmit-Receive Unit, is setting up for receiving described target Home eNodeB the switching confirmation request message of returning after the transmission channel of transport network layer, and after receiving described switching confirmation request message, to described source Home eNodeB, sends switching command message;
Based on described switching command message, described source Home eNodeB, subscriber equipment and target Home eNodeB carry out alternately, realize the switching from described source Home eNodeB to target Home eNodeB.
Above-mentioned base-station gateway, wherein, described switching controls module also comprises:
The 3rd Transmit-Receive Unit, the handoff completion message sending after switching completes for receiving described target Home eNodeB, and after receiving described handoff completion message, to described source Home eNodeB, send resource release command;
Based on described resource release command, described source Home eNodeB discharges Access Link Control Application Part bearer context for data transmission.
Above-mentioned base-station gateway, wherein, also comprises:
Data cache module, the data for buffer memory from core net;
The first data transmission blocks, for receiving in described switching controls module after the switching confirmation request message of described target Home eNodeB transmission, sends the data of buffer memory in data cache module to described target Home eNodeB.
Above-mentioned base-station gateway, wherein, also comprises:
The second data transmission blocks, for sending the data of data cache module buffer memory, until described switching controls module receives the handoff completion message sending from described target Home eNodeB to described source Home eNodeB.
Above-mentioned base-station gateway, wherein, also comprises:
The 3rd data transmission blocks, for sending the data of data cache module buffer memory, until described switching controls module receives the switching confirmation request message sending from described target Home eNodeB to described source Home eNodeB.
Above-mentioned base-station gateway, wherein, also comprises:
The second data transmission blocks, for sending the data of data cache module buffer memory, until described switching controls module receives the handoff completion message sending from described target Home eNodeB to described source Home eNodeB;
The 3rd data transmission blocks, for sending the data of data cache module buffer memory, until described switching controls module receives the switching confirmation request message sending from described target Home eNodeB to described source Home eNodeB;
Transmission mode selection module, for when the type of service that is issued to the data of mobile terminal is real time business, trigger the work of described the second data transmission blocks, and stop the work of described the 3rd data transmission blocks, otherwise trigger the work of described the 3rd data transmission blocks, and stop the work of described the second data transmission blocks.
Above-mentioned base-station gateway, wherein, also comprises:
Notification module, while being real time business for the type of service being issued to the data of mobile terminal, notifies described target Home eNodeB to set up buffer memory, the downlink data that buffer memory receives.
To achieve these goals, the embodiment of the present invention also provides a kind of base-station gateway to realize the method that switch base station, at least two Home eNodeB that belong to same many communities closed user group of described base-station gateway administration, and wherein, described method comprises:
Steps A, base-station gateway utilizes the handover request message of Radio Access Network Application Part protocal analysis source Home eNodeB transmission, obtains the second sign of the target Home eNodeB in described handover request;
Step B, described base-station gateway is searched described at least two first signs that belong to the Home eNodeB of same many communities closed user group of preserving in advance, judges that whether described the second sign is in described the first sign, obtains a judged result;
Step C, described base-station gateway described judged result indicate described second be designated described first sign in one time, mutual with described source Home eNodeB and target Home eNodeB, utilize Radio Access Network Application Part agreement to realize the switching from described source Home eNodeB to target Home eNodeB, otherwise forward described handover request message to core net.
Above-mentioned method, wherein, specifically comprises in described step C:
Described base-station gateway receives described handover request message, and to described target Home eNodeB, sends and switch requirement order after receiving described handover request message;
Described base-station gateway and described target Home eNodeB are set up the transmission channel of transport network layer;
Described base-station gateway receives described target Home eNodeB and is setting up the switching confirmation request message of returning after the transmission channel of transport network layer;
Described base-station gateway sends switching command message to described source Home eNodeB, and based on described switching command message, described source Home eNodeB, subscriber equipment and target Home eNodeB carry out alternately, realizes the switching from described source Home eNodeB to target Home eNodeB.
Above-mentioned method, wherein, also comprises in described step C:
Described base-station gateway receives the handoff completion message that described target Home eNodeB sends after switching completes, and send resource release command to described source Home eNodeB, based on described resource release command, described source Home eNodeB discharges Access Link Control Application Part bearer context for data transmission.
Above-mentioned method, wherein, in the processing procedure of described step C, described method also comprises:
Step D, described base-station gateway buffer memory is from the data of core net;
Step e, described base-station gateway, after receiving the switching confirmation request message of described target Home eNodeB transmission, sends the data of buffer memory to described target Home eNodeB.
Above-mentioned method, wherein, also comprises after described step D:
Step e 2, described base-station gateway sends the data of buffer memory in data cache module to described source Home eNodeB, until described base-station gateway receives the switching confirmation request message sending from described target Home eNodeB.
Above-mentioned method, wherein, when the type of service of the described data from core net is real time business, carries out described step e 1, otherwise carries out described step e 2.
Above-mentioned method, wherein, also comprises after described step e 1:
Step F, described base-station gateway notifies described target Home eNodeB to set up buffer memory, the downlink data that buffer memory receives.
To achieve these goals, the embodiment of the present invention also provides a kind of base-station gateway, administers at least two Home eNodeB that belong to same many communities closed user group, wherein, comprising:
Data cache module, the data for buffer memory from core net;
Signalling exchange module, for carrying out Signalling exchange with source Home eNodeB and target Home eNodeB, realizes the switching from described source Home eNodeB to target Home eNodeB;
The first data transmission blocks, for receiving in described Signalling exchange module after the switching confirmation request message of described target Home eNodeB transmission, sends the data of buffer memory in data cache module to described target Home eNodeB.
Above-mentioned base-station gateway, wherein, also comprises:
The second data transmission blocks, for sending the data of data cache module buffer memory, until described Signalling exchange module receives the handoff completion message sending from described target Home eNodeB to described source Home eNodeB; Or
The 3rd data transmission blocks, for sending the data of data cache module buffer memory, until described Signalling exchange module receives the switching confirmation request message sending from described target Home eNodeB to described source Home eNodeB.
Above-mentioned base-station gateway, wherein, also comprises:
The second data transmission blocks, for sending the data of data cache module buffer memory, until described Signalling exchange module receives the handoff completion message sending from described target Home eNodeB to described source Home eNodeB;
The 3rd data transmission blocks, for sending the data of data cache module buffer memory, until described Signalling exchange module receives the switching confirmation request message sending from described target Home eNodeB to described source Home eNodeB; With
Transmission mode selection module, for when the type of service that is issued to the data of mobile terminal is real time business, trigger the work of described the second data transmission blocks, and stop the work of described the 3rd data transmission blocks, otherwise trigger the work of described the 3rd data transmission blocks, and stop the work of described the second data transmission blocks.
Above-mentioned base-station gateway, wherein, also comprises:
Notification module, while being real time business for the type of service being issued to the data of mobile terminal, notifies described target Home eNodeB to set up buffer memory, the downlink data that buffer memory receives.
To achieve these goals, the data processing method when embodiment of the present invention also provides a kind of base-station gateway to switch in base station, at least two Home eNodeB that belong to same many communities closed user group of described base-station gateway administration, described method comprises:
Described base-station gateway buffer memory is from the data of core net;
Described base-station gateway and source Home eNodeB and target Home eNodeB carry out Signalling exchange, realize the switching from described source Home eNodeB to target Home eNodeB;
Described base-station gateway, after receiving the switching confirmation request message of described target Home eNodeB transmission, sends the data of buffer memory in data cache module to described target Home eNodeB.
Above-mentioned method, wherein, also comprises:
Step e 2, described base-station gateway sends the data of buffer memory in data cache module to described source Home eNodeB, until described base-station gateway receives the switching confirmation request message sending from described target Home eNodeB.
Above-mentioned method, wherein, when the type of service of the described data from core net is real time business, carries out described step e 1, otherwise carries out described step e 2.
Above-mentioned method, wherein, also comprises after described step e 1:
Step F, described base-station gateway notifies described target Home eNodeB to set up buffer memory, the downlink data that buffer memory receives.
The embodiment of the present invention has following beneficial effect:
During switching between the Home eNodeB of the base-station gateway of the embodiment of the present invention under carrying out base-station gateway, once judge Home eNodeB, belong to identical CSG, utilize Radio Access Network Application Part agreement and described source Home eNodeB and target Home eNodeB mutual, the switching of realization from described source Home eNodeB to target Home eNodeB, with respect to prior art, no longer need with core net mutual, one is the processing pressure that has reduced core net, reduced and core net between Signalling exchange, simultaneously, owing to no longer needing to carry out alternately with core net, the speed of the hand-off process between the Home eNodeB of the CSG that has greatly accelerated to belong to identical, reduced the time of hand-off process,
Method and apparatus of the present invention is belonging to while switching between the 3G Home eNodeB of same CSG, 3G femto gateway as far as possible early by data distributing to target 3G Home eNodeB, reduced as much as possible the possibility of data-bag lost, simultaneously, as far as possible evening stop to source 3G Home eNodeB, issue data, reduced from another point of view the possibility of data-bag lost, simultaneously for different types of service, the mode that issues data to source 3G Home eNodeB also can be selected flexibly, when having reduced the possibility of data-bag lost, the least possible busy channel resource.
Accompanying drawing explanation
Fig. 1 is existing UMTS Organization Chart;
Fig. 2 is the Organization Chart of definite 3G Home Node B (3G HNB);
Fig. 3 is the framework of long-term evolving network (LTE);
Fig. 4 is the schematic diagram of the application scenarios of the embodiment of the present invention;
Fig. 5 is the structural representation of the 3G femto gateway of the embodiment of the present invention;
Fig. 6 is the schematic flow sheet that the base-station gateway of the embodiment of the present invention is realized the method for switching base station;
Fig. 7 is the schematic flow sheet that the base-station gateway of the embodiment of the present invention is realized the step 63 of the method for switching base station;
Fig. 8 is the schematic flow sheet of the 3G femto gateway of the embodiment of the present invention data processing method when carrying out 3G Home eNodeB.
Embodiment
The base-station gateway of the embodiment of the present invention, base-station gateway are realized in the method and data processing method of switching base station, at femto gateway, RNL control signal analysis and processing module is set, it is by RANAP (Radio Access Network Application Part, Radio Access Network Application Part) realize the function of mobile anchor point, make subscriber equipment between the Home eNodeB in femto gateway administration, to realize the simple and fireballing switching of signaling process.
Different from the method for the traditional indoor covering of raising, Home eNodeB is one and is placed on indoor micro radio base station, and its access technology can be GSM, and UMTS is LTE even.3GPP is discussing the standardization issue of Home eNodeB at present.
Before the embodiment of the present invention is described in detail, first Dui Duo community CSG scene is elaborated, and is beneficial to better understand the present invention.
In general, many communities CSG is generally deployed in enterprise, campus and large-scale community, and mobile subscriber has the right to use a plurality of Home eNodeB that belong to identical CSG.These Home eNodeB are adjacent base stations, by femto gateway, are linked into core network.
Can imagine, user is in enterprise, and campus, is roving in large-scale community, under talking state, will relate to the switching problem between different HNB.
Figure 4 shows that the schematic diagram of the application scenarios of the embodiment of the present invention, as shown in Figure 4, wherein, 3G femto gateway is connected with 3 3G Home eNodeB, be respectively 3G Home eNodeB one, 3G Home eNodeB two and 3G Home eNodeB three, and the current coverage in 3G Home eNodeB two of subscriber equipment, and subscriber equipment moves in the direction to 3G Home eNodeB one.
The 3G femto gateway of the embodiment of the present invention, administers at least two 3G Home eNodeB, is applied to many communities CSG, and as shown in Figure 5,3G femto gateway comprises:
Memory module, for the first sign of at least two 3G Home eNodeB described in preserving;
Analysis module, for the handover request message (Relocation Required) of utilizing Radio Access Network Application Part protocal analysis source 3G Home eNodeB to send, obtain the second sign of the target 3G Home eNodeB that described handover request comprises, the sign of the 3G Home eNodeB that namely subscriber equipment need to be switched to;
Judge module, for searching described memory module, judges that whether described the second sign is in described the first sign, obtains a judged result;
Switching controls module, for described judged result indicate described second be designated described first sign one time, mutual with described source 3G Home eNodeB and target 3G Home eNodeB, utilize Radio Access Network Application Part agreement to realize the switching of 3G Home eNodeB;
Forwarding module, in described judged result, indicate described second sign be not described first sign one time, to core net, forward described handover request message.
The situation shown in Fig. 4 of take is below elaborated as example.
As shown in Figure 4, in the current coverage in 3G Home eNodeB two of subscriber equipment, and the direction to 3G Home eNodeB one moves, during locality in subscriber equipment moves to the common coverage of 3G Home eNodeB one and 3G Home eNodeB two, 3G Home eNodeB two can be judged and need to switch, now, 3G Home eNodeB two sends handover request message (Relocation Required) to 3G femto gateway, and wherein handover request comprises the second sign of target 3G Home eNodeB (being 3G Home eNodeB one).
3G femto gateway receives after this handover request message, the second sign of 3G Home eNodeB one is obtained in analysis, owing to preserving 3G Home eNodeB one, two and three sign in its memory module, after searching, find that 3G Home eNodeB one belongs to its compass of competency, now mutual with described 3G Home eNodeB one and 3G Home eNodeB two, utilize Radio Access Network Application Part agreement to realize the switching from Home eNodeB two and 3G Home eNodeB one.
Now, mobile terminal continues mobile, during locality in subscriber equipment moves to 3G Home eNodeB one and the 3G Home eNodeB X common coverage of (not belonging to the administration of 3G femto gateway), 3G Home eNodeB is judged for a moment and need to be switched, now, 3G Home eNodeB one sends handover request message (Relocation Required) to 3G femto gateway, and wherein handover request comprises the second sign of target 3G Home eNodeB (being 3G Home eNodeB X).
3G femto gateway receives after this handover request message, the second sign of 3G Home eNodeB X is obtained in analysis, owing to only preserving 3G Home eNodeB one, two and three sign in its memory module, after searching, find that 3G Home eNodeB X does not belong to its compass of competency, now to core net, forward described handover request message, by existing handling process, complete the switching of 3G Home eNodeB.
Below the switching controls module in the 3G femto gateway of the embodiment of the present invention is elaborated, this switching controls module specifically comprises:
The first Transmit-Receive Unit for receiving handover request message, and sends and switches requirement order (Relocation Request) to described target 3G Home eNodeB after receiving handover request message;
Path Setup unit, for setting up the transmission channel of transport network layer with described target 3G Home eNodeB;
The second Transmit-Receive Unit, for receiving described target 3G Home eNodeB, setting up the switching confirmation request message (Relocation Request Ack) of returning after the transmission channel of transport network layer, and after receiving switching confirmation request message, to described source 3G Home eNodeB, send switching command message (Relocation Command), based on described switching command message, described source 3G Home eNodeB, subscriber equipment and target 3G Home eNodeB carry out alternately, realize the switching from source 3G Home eNodeB to target 3G Home eNodeB.
Meanwhile, after completing switching, need the resource between source of release 3G Home eNodeB and mobile device, therefore, the switching controls module of the embodiment of the present invention also comprises:
The 3rd Transmit-Receive Unit, the handoff completion message (Relocation Complete) sending after switching completes for receiving target 3G Home eNodeB, and after receiving handoff completion message, to source 3G Home eNodeB, send Iu resource release command (Iu Release Command), based on the release command of described Iu resource, source 3G Home eNodeB discharges Iu bearer context for data transmission.
From the description of the 3G femto gateway of the embodiment of the present invention, can find, in prior art, 3G femto gateway is at RNL (Radio Network layer, wireless network layer) be transparent forwarding, so while switching in the base station of carrying out CSG inside, need to be forwarded to core net processes, not only flow process is loaded down with trivial details, and cause switching time long, and the 3G femto gateway of the embodiment of the present invention, by utilizing RANAP, make it that function of mobile anchor point can be provided, therefore have advantages of following: when switch the base station of carrying out CSG inside, owing to processing without being forwarded to core net, therefore, simplified flow process, and then also saved time of hand-off process.
The base-station gateway of the embodiment of the present invention is realized the method switched base station as shown in Figure 5, comprising:
Step 61, the handover request message (Relocation Required) that 3G femto gateway utilizes Radio Access Network Application Part protocal analysis source 3G Home eNodeB to send, obtain the second sign that described handover request comprises target 3G Home eNodeB, the sign of the 3G Home eNodeB that namely subscriber equipment need to be switched to;
Step 64, when 3G femto gateway indicates described the second sign not to be in described the first sign in described judged result, forwards described handover request message to core net.
Below step 63 is elaborated, as shown in Figure 7, specifically comprises:
Certainly, in above-mentioned flow processing process, be to take the explanation that 3G Home eNodeB (as HNB and HeNB etc.) and 3G femto gateway carry out as example, but it should be understood that all communication systems that may occur after the embodiment of the present invention is equally also applicable to.
In background technology, mention, due at user plane, between 3G Home eNodeB, there is no the interface of similar Iur or X2, therefore data are to transmit by the interface between 3G Home eNodeB, downlink data may be lost in the process of switching, therefore, the embodiment of the present invention also provides the data processing method in a kind of 3G femto gateway and its 3G Home eNodeB handoff procedure.
The 3G femto gateway of the embodiment of the present invention comprises:
Data cache module, the data for buffer memory from core net;
Signalling exchange module, for carrying out Signalling exchange with source 3G Home eNodeB and target 3G Home eNodeB;
The first data transmission blocks, for receiving in Signalling exchange module after the switching confirmation request message of described target 3G Home eNodeB transmission, sends the data of buffer memory in data cache module to described target 3G Home eNodeB.
Due in specific embodiments of the invention, once Signalling exchange module receives after the switching confirmation request message of described target 3G Home eNodeB transmission, show that target 3G Home eNodeB and 3G femto gateway set up data channel, just the data from core net of receiving are sent to target 3G Home eNodeB, guaranteed that as much as possible data can not lose.
Meanwhile, the 3G femto gateway of the embodiment of the present invention also comprises:
The second data transmission blocks, for sending the data of data cache module buffer memory, until described Signalling exchange module receives the handoff completion message sending from described target 3G Home eNodeB to described source 3G Home eNodeB.
By foregoing description, can find, only after switching completes, just stop sending data to source 3G Home eNodeB, further guarantee the integrality of data in the situation of handoff failure.
According to above-mentioned description, can find, for saving from damage of data, in the method that the embodiment of the present invention has adopted, once femto gateway and described target 3G Home eNodeB are set up after the transmission channel of transport network layer, just to target 3G Home eNodeB, transmit data, now the data for source 3G Home eNodeB transmit the two kinds of modes that comprise:
Once mode one femto gateway and described target 3G Home eNodeB are set up after the transmission channel of transport network layer, receive and switch after confirmation request message, just stop transmitting data to source 3G Home eNodeB;
Mode two, femto gateway send the data of buffer memory in data cache module to described source 3G Home eNodeB, until described Signalling exchange module receives the handoff completion message sending from described target 3G Home eNodeB.
Above-mentioned implementation two times, due to until Signalling exchange module receives the handoff completion message sending from described target 3G Home eNodeB just stops sending downlink data to source HNB, therefore,, in order to reduce unnecessary data interaction, the embodiment of the present invention also adopts following measure:
Because the above-mentioned data for source 3G Home eNodeB transmit, comprise two kinds of modes, specifically adopt which kind of mode to transmit, the 3G femto gateway of the embodiment of the present invention also comprises:
Parameter acquisition module, for obtaining the qos parameter of the Deta bearer that core net issues;
Type of service judge module, for according to described qos parameter judgement type of service, obtains a judged result;
Transmission mode selection module, for when described judged result service class indication is real time business, employing mode two, otherwise employing mode one, namely select to trigger the work of one of them, stops another work simultaneously.
Simultaneously, according to the type of transport service, can also determine whether to need target 3G Home eNodeB that buffer memory is set, therefore, once target 3G Home eNodeB receives the data that 3G femto gateway issues, according to the qos parameter judgement type of service in Deta bearer, obtain a judged result, and when described judged result service class indication is real time business, the data that buffer memory buffer memory receives are set, otherwise buffer memory is not set.
Certainly, can be also that base-station gateway arranges notification module, this notification module, for when the type of service that is issued to the data of mobile terminal is real time business, notifies described target Home eNodeB to set up buffer memory, the downlink data that buffer memory receives.
At this, the large I of this buffer memory arranges as required, can be also the empirical value pre-setting.
The data processing method of the 3G femto gateway of the embodiment of the present invention when carrying out 3G Home eNodeB, as shown in Figure 8, comprising:
For subscriber equipment, when carrying out soft handover, subscriber equipment is to be connected with object RNC with source RNC simultaneously.
Yet travelling carriage is that what to carry out is direct-cut operation while switching between different 3G Home eNodeB, also first disconnect and the contact of source 3G Home eNodeB, then be connected with object 3G Home eNodeB, this mode has increased the possibility of travelling carriage obliterated data.Equally, owing to there is no direct interface (the Iur interface in UMTS or the X2 interface in LTE) between HNB, data need to be issued to object 3G Home eNodeB from 3G femto gateway, rather than be transferred to object 3G Home eNodeB from source 3G Home eNodeB, this has also increased the possibility of loss of data, method and apparatus of the present invention, belonging to while switching between the 3G Home eNodeB of same CSG, 3G femto gateway as far as possible early by data distributing to target 3G Home eNodeB, reduced as much as possible the possibility of data-bag lost, simultaneously, as far as possible evening stop to source 3G Home eNodeB, issue data, reduced from another point of view the possibility of data-bag lost.
And for different types of service, the mode that issues data to source 3G Home eNodeB also can be selected flexibly, when having reduced the possibility of data-bag lost, the least possible busy channel resource.
Above example is all to take the explanation that UMTS carries out as example, but should be understood that, the method and apparatus of the embodiment of the present invention equally also goes for LTE, or other have the mobile communication system of similar structures, because its processing mode is identical, at this, be no longer repeated in this description.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (16)
1. a base-station gateway, administers at least two Home eNodeB that belong to same many communities closed user group, it is characterized in that, comprising:
Memory module, for the first sign of at least two Home eNodeB described in preserving;
Analysis module, for the handover request message of utilizing Radio Access Network Application Part protocal analysis source Home eNodeB to send, obtains the second sign of the target Home eNodeB in described handover request;
Judge module, for searching described memory module, judges that whether described the second sign is in described the first sign, obtains a judged result;
Switching controls module, for described judged result indicate described second be designated described first sign one time, mutual with described source Home eNodeB and target Home eNodeB, utilize Radio Access Network Application Part agreement to realize the switching from described source Home eNodeB to target Home eNodeB;
Forwarding module, in described judged result, indicate described second sign be not described first sign one time, to core net, forward described handover request message.
2. base-station gateway according to claim 1, is characterized in that, described Home eNodeB is Home eNodeB under global mobile communication system or the Home eNodeB of the evolution in long-term evolving network.
3. base-station gateway according to claim 1 and 2, is characterized in that, described switching controls module specifically comprises:
The first Transmit-Receive Unit for receiving described handover request message, and sends and switches requirement order to described target Home eNodeB after receiving described handover request message;
Path Setup unit, for setting up the transmission channel of transport network layer with described target Home eNodeB;
The second Transmit-Receive Unit, is setting up for receiving described target Home eNodeB the switching confirmation request message of returning after the transmission channel of transport network layer, and after receiving described switching confirmation request message, to described source Home eNodeB, sends switching command message;
Based on described switching command message, described source Home eNodeB, subscriber equipment and target Home eNodeB carry out alternately, realize the switching from described source Home eNodeB to target Home eNodeB.
4. base-station gateway according to claim 3, is characterized in that, described switching controls module also comprises:
The 3rd Transmit-Receive Unit, the handoff completion message sending after switching completes for receiving described target Home eNodeB, and after receiving described handoff completion message, to described source Home eNodeB, send resource release command;
Based on described resource release command, described source Home eNodeB discharges Access Link Control Application Part bearer context for data transmission.
5. base-station gateway according to claim 1 and 2, is characterized in that, also comprises:
Data cache module, the data for buffer memory from core net;
The first data transmission blocks, for receiving in described switching controls module after the switching confirmation request message of described target Home eNodeB transmission, sends the data of buffer memory in data cache module to described target Home eNodeB.
6. base-station gateway according to claim 5, is characterized in that, also comprises:
The second data transmission blocks, for sending the data of data cache module buffer memory, until described switching controls module receives the handoff completion message sending from described target Home eNodeB to described source Home eNodeB.
7. base-station gateway according to claim 5, is characterized in that, also comprises:
The 3rd data transmission blocks, for sending the data of data cache module buffer memory, until described switching controls module receives the switching confirmation request message sending from described target Home eNodeB to described source Home eNodeB.
8. base-station gateway according to claim 5, is characterized in that, also comprises:
The second data transmission blocks, for sending the data of data cache module buffer memory, until described switching controls module receives the handoff completion message sending from described target Home eNodeB to described source Home eNodeB;
The 3rd data transmission blocks, for sending the data of data cache module buffer memory, until described switching controls module receives the switching confirmation request message sending from described target Home eNodeB to described source Home eNodeB;
Transmission mode selection module, for when the type of service that is issued to the data of mobile terminal is real time business, trigger the work of described the second data transmission blocks, and stop the work of described the 3rd data transmission blocks, otherwise trigger the work of described the 3rd data transmission blocks, and stop the work of described the second data transmission blocks.
9. base-station gateway according to claim 8, is characterized in that, also comprises:
Notification module, while being real time business for the type of service being issued to the data of mobile terminal, notifies described target Home eNodeB to set up buffer memory, the downlink data that buffer memory receives.
10. base-station gateway is realized the method that switch base station, and at least two Home eNodeB that belong to same many communities closed user group of described base-station gateway administration, is characterized in that, described method comprises:
Steps A, base-station gateway utilizes the handover request message of Radio Access Network Application Part protocal analysis source Home eNodeB transmission, obtains the second sign of the target Home eNodeB in described handover request;
Step B, described base-station gateway is searched described at least two first signs that belong to the Home eNodeB of same many communities closed user group of preserving in advance, judges that whether described the second sign is in described the first sign, obtains a judged result;
Step C, described base-station gateway described judged result indicate described second be designated described first sign in one time, mutual with described source Home eNodeB and target Home eNodeB, utilize Radio Access Network Application Part agreement to realize the switching from described source Home eNodeB to target Home eNodeB, otherwise forward described handover request message to core net.
11. methods according to claim 10, is characterized in that, in described step C, specifically comprise:
Described base-station gateway receives described handover request message, and to described target Home eNodeB, sends and switch requirement order after receiving described handover request message;
Described base-station gateway and described target Home eNodeB are set up the transmission channel of transport network layer;
Described base-station gateway receives described target Home eNodeB and is setting up the switching confirmation request message of returning after the transmission channel of transport network layer;
Described base-station gateway sends switching command message to described source Home eNodeB, and based on described switching command message, described source Home eNodeB, subscriber equipment and target Home eNodeB carry out alternately, realizes the switching from described source Home eNodeB to target Home eNodeB.
12. methods according to claim 11, is characterized in that, in described step C, also comprise:
Described base-station gateway receives the handoff completion message that described target Home eNodeB sends after switching completes, and send resource release command to described source Home eNodeB, based on described resource release command, described source Home eNodeB discharges Access Link Control Application Part bearer context for data transmission.
13. according to the method described in claim 10 or 11 or 12, it is characterized in that, in the processing procedure of described step C, described method also comprises:
Step D, described base-station gateway buffer memory is from the data of core net;
Step e, described base-station gateway, after receiving the switching confirmation request message of described target Home eNodeB transmission, sends the data of buffer memory to described target Home eNodeB.
14. methods according to claim 13, is characterized in that, after described step D, also comprise:
Step e 1, described base-station gateway sends the data of buffer memory in data cache module to described source Home eNodeB, until described base-station gateway receives the handoff completion message sending from described target Home eNodeB; Or
Step e 2, described base-station gateway sends the data of buffer memory in data cache module to described source Home eNodeB, until described base-station gateway receives the switching confirmation request message sending from described target Home eNodeB.
15. methods according to claim 14, is characterized in that, when the type of service of the described data from core net is real time business, carry out described step e 1, otherwise carry out described step e 2.
16. methods according to claim 15, is characterized in that, after described step e 1, also comprise:
Step F, described base-station gateway notifies described target Home eNodeB to set up buffer memory, the downlink data that buffer memory receives.
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| CN200810211726.4A CN101686509B (en) | 2008-09-23 | 2008-09-23 | Base station gateway, method of base station gateway for realizing base station switching, and data processing method |
| JP2009219036A JP5492507B2 (en) | 2008-09-23 | 2009-09-24 | Base station gateway, base station switching method and data processing method by base station gateway |
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| JP5288561B2 (en) * | 2010-02-26 | 2013-09-11 | Ｋｄｄｉ株式会社 | Femtocell handoff method and system |
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| CN102271381B (en) * | 2010-06-01 | 2014-04-09 | 电信科学技术研究院 | Base station connecting method and device of LTE (Long Term Evolution) system |
| CN102281600B (en) * | 2010-06-10 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of method and apparatus realizing local switching |
| CN102291705B (en) * | 2010-06-21 | 2015-09-16 | 中兴通讯股份有限公司 | Connection control method in a kind of cell update and system |
| CN102300272B (en) * | 2010-06-22 | 2015-09-16 | 中兴通讯股份有限公司 | The data forwarding method that S1 switches and mobile communication system |
| JP5696382B2 (en) * | 2010-07-06 | 2015-04-08 | 日本電気株式会社 | Base station apparatus, radio resource allocation method, and program |
| CN102625391B (en) * | 2011-01-31 | 2014-12-03 | 华为终端有限公司 | Releasing method for terminal load, related device and system |
| CN102892165A (en) * | 2011-07-22 | 2013-01-23 | 中兴通讯股份有限公司 | Switching method and system for home evolved node base station |
| CN102917434B (en) * | 2011-08-05 | 2018-01-30 | 中兴通讯股份有限公司 | A kind of Home eNodeB supports connection control method and system under multiple cell scene |
| CN103096521A (en) * | 2011-11-07 | 2013-05-08 | 中怡(苏州)科技有限公司 | Method of integration of user equipment functions by using miniature base station |
| CN103476067A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Resource reservation method and system thereof |
| CN103476068A (en) * | 2012-06-08 | 2013-12-25 | 普天信息技术研究院有限公司 | Resource reservation method and system thereof |
| JP5758352B2 (en) * | 2012-06-22 | 2015-08-05 | 株式会社Ｎｔｔドコモ | Wireless communication system and base station |
| KR101365588B1 (en) | 2012-07-25 | 2014-02-21 | 에스케이텔레콤 주식회사 | Base station gateway apparatus and control method thereof |
| CN104041121B (en) * | 2012-12-14 | 2018-03-27 | 华为技术有限公司 | Bearing processing method, device and system |
| CN103313305B (en) * | 2013-06-26 | 2016-11-02 | 京信通信系统（中国）有限公司 | Gateway apparatus and base station system |
| US10868762B2 (en) * | 2015-09-23 | 2020-12-15 | Google Llc | Systems and methods for mobility management in a distributed software defined network packet core system |
| CN106060879B (en) * | 2016-05-10 | 2019-09-20 | 中国联合网络通信集团有限公司 | A kind of cell switching method and optical line terminal |
| CN110213798B (en) * | 2019-07-17 | 2022-10-25 | 京信网络系统股份有限公司 | Shunt method and device based on Femto gateway |
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| CN101686509A (en) | 2010-03-31 |
| JP2010081605A (en) | 2010-04-08 |
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