CN106851750A - A kind of communication means, base station and system - Google Patents
A kind of communication means, base station and system Download PDFInfo
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- CN106851750A CN106851750A CN201510884676.6A CN201510884676A CN106851750A CN 106851750 A CN106851750 A CN 106851750A CN 201510884676 A CN201510884676 A CN 201510884676A CN 106851750 A CN106851750 A CN 106851750A
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- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/22—Performing reselection for specific purposes for handling the traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of communication means, base station and system.The inventive method is applied to group of base stations, include master base station and prothetic group station in group of base stations, master base station and prothetic group station are connected by switching equipment, be stored with master base station and reside in the contextual information of the user on prothetic group station, wherein, master base station receives the handover request message that prothetic group station sends；If master base station according to handover request message judge the target BS of user equipment being switched be not belonging to master base station where group of base stations, send handover request message to target BS；Master base station notifies that the user equipment on the corresponding prothetic group station of handover request message is switched to target BS.The method of the present invention, base station and system can reduce the treatment load on base station under the scene of multiple base station small ranges covering.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of communication means, base station and system.
Background technology
With the development of mobile communications network, in order to adapt to global mobile data flow rapid growth, more effectively
Realize network capacity uniform fold and eliminate it is single it is grand cover the network blind spot that causes, networking structure of the network by
Step is turned to the cellulor structure of high power capacity, low cost, green energy conservation by macrocellular, for the demand, is introduced
The Smallcell of integrated cellular technology carries out supplement covering.
Small Cell relative to traditional Macrocell (macrocellular), can flexible networking, reduce focus and
Reduce the difficulty of room area station for acquiring and engineering construction, avoid the high frequency networking that LTE network faces from wearing damage
Problem, expanding coverage area of network and lifting network capacity, and can widely apply indoors it is blind with outdoor benefit and
Under the scene of concurrent heating.After Small Cell are introduced, each HeNB (Home eNodeB, Home evolved Node
B) it is attached with core network by gateway, while HeNB mutual neighboring BS relationship and HeNB
It is attached by X2 link configurations and the neighboring BS relationship of macro base station between.
It is small relative to macro base station coverage yet with HeNB, appear in one in actual network environment
The situation of multiple HeNB is installed simultaneously in individual coverage.Especially in the indoor public places of larger space,
Such as gymnasium, hospital, school etc., therefore occur that multi-user switches simultaneously or user is between two HeNB
The situation of frequent switching, this signaling that will increase base station processes load, increases the switching of wireless network covering
Scape, causes the risk of user's handoff failure to increase, and cutting off rate is improved, and then also reduces user's perception.
Therefore, how to solve under the scene of above-mentioned multiple base station small range coverings, caused by user's frequent switching
Treatment load on base station increases, and then causes the problem of user's handover failure rate increase, is that industry is urgently ground
Study carefully and solve.
The content of the invention
The embodiment of the present invention provides a kind of communication means, base station and system, is used to solve multiple base station small ranges
Under the scene of covering, the increased problem for the treatment of load caused by user's frequent switching on base station.
The communication means that one embodiment of the present of invention is provided, is applied to group of base stations, includes in the group of base stations
Master base station and prothetic group station, the master base station and the prothetic group station are connected by switching equipment, on the master base station
It is stored with and resides in the contextual information of the user on prothetic group station, the method includes：
Master base station receives the handover request message that prothetic group station sends；
If the target BS of the user equipment that the master base station judges to be switched according to the handover request message
Group of base stations where being not belonging to the master base station, then the master base station is to the target BS transmission switching
Request message；
The master base station notifies that the user equipment on the corresponding prothetic group station of the handover request message is switched to institute
State target BS.
Specifically, if master base station user equipment for being switched according to the handover request message judges
Target BS be prothetic group station in another group of base stations, then the master base station is to base where the target BS
The master base station stood in group sends the handover request message, and the handover request message is by the target BS institute
Master base station in group of base stations is transmitted to the target BS.
The communication means that one embodiment of the present of invention is provided also includes：If the master base station is according to the switching
Request message judges that the target BS of the user equipment being switched is in the group of base stations where the master base station
Prothetic group station, then the master base station is by the handover request message transparent transmission.
The communication means that one embodiment of the present of invention is provided also includes：The master base station receive prothetic group station with
Family equipment sets up the Non-Access Stratum NAS signaling sent after being connected with the prothetic group station, obtains the NAS letters
The contextual information of the user included in order；The master base station stores the contextual information of the user,
The NAS signaling is pass-through to core net.
The communication means that one embodiment of the present of invention is provided also includes：The master base station receives prothetic group station in institute
The user equipment successful switch stated on prothetic group station leads to the release of transmission after the target BS outside the group of base stations
Know, the contextual information of the user of the release storage on the master base station is notified according to the release.
The communication means that one embodiment of the present of invention is provided also includes：The master base station receives prothetic group station in institute
State the user equipment successful switch on prothetic group station to the renewal of transmission behind the target prothetic group station in the group of base stations
Notify, the contextual information of the user of the storage on the master base station is updated according to the update notification.
The communication means that one embodiment of the present of invention is provided also includes：The master base station receives core net to institute
State the downlink data that the user equipment on prothetic group station sends；The master base station is according to storage on the master base station
The contextual information of the user on prothetic group station is resided in, the downlink data is sent to the downlink data pair
Prothetic group station where the user equipment answered, the user equipment is sent to by the prothetic group station.
The base station that one embodiment of the present of invention is provided, is applied to include main base in group of base stations, the group of base stations
Stand and prothetic group station, the master base station and the prothetic group station are connected by switching equipment, are stored on the master base station
There is the contextual information for residing in the user on prothetic group station, including：
Receiver module, when the base station is configured as master base station, the switching for receiving the transmission of prothetic group station please
Seek message；
Sending module, when the base station is configured as master base station, for according to the handover request message
The target BS of user equipment that judgement is switched be not belonging to the master base station where group of base stations when, to described
Target BS sends the handover request message；
Notification module, when the base station is configured as master base station, for notifying the handover request message pair
The user equipment on prothetic group station answered is switched to the target BS.
Wherein described sending module, when the base station is configured as master base station, specifically for：According to institute
The target BS for stating the user equipment being switched described in the judgement of handover request message is in another group of base stations
During prothetic group station, the handover request message, institute are sent to the master base station in group of base stations where the target BS
State handover request message and the target BS is transmitted to by the master base station in group of base stations where the target BS.
The base station that one embodiment of the present of invention is provided, when the base station is configured as master base station, also includes：
Transparent transmission module, for the target base in the user equipment for judging to be switched according to the handover request message
During prothetic group station in the group of base stations stood where the master base station, then the master base station disappears the handover request
Breath transparent transmission.
The base station that one embodiment of the present of invention is provided, when the base station is configured as master base station, also includes：
Memory module, for receive prothetic group station after user equipment and the prothetic group station are set up and be connecteds transmission it is non-
Access Layer NAS signaling, obtains the contextual information of the user included in the NAS signaling；And
Contextual information for storing the user, core net is pass-through to by the NAS signaling.
The base station that one embodiment of the present of invention is provided, it is described to deposit when the base station is configured as master base station
Storage module, is additionally operable to：Receive user equipment successful switch of the prothetic group station on the prothetic group station to the base station
The release sent after target BS outside group is notified, according to the release notice release storage in the master base station
On the user contextual information.
The base station that one embodiment of the present of invention is provided, it is described to deposit when the base station is configured as master base station
Storage module, is additionally operable to：Receive user equipment successful switch of the prothetic group station on the prothetic group station to the base station
The update notification sent behind target prothetic group station in group, storage is updated in the main base according to the update notification
The contextual information of the user on standing.
The base station that one embodiment of the present of invention is provided, when the base station is configured as master base station, also includes：
Data module, for receiving the downlink data that core net sends to the user equipment on the prothetic group station, according to
The contextual information for residing in the user on prothetic group station stored on the master base station, by downlink data hair
Give the downlink data corresponding user equipment.
The system that one embodiment of the present of invention is provided, is applied to include main base in group of base stations, the group of base stations
Stand and prothetic group station, the master base station and the prothetic group station are connected by switching equipment, are stored on the master base station
There is the contextual information for residing in the user on prothetic group station, the system includes：
Master base station, the handover request message for receiving the transmission of prothetic group station；If according to the handover request message
The target BS of user equipment that judgement is switched be not belonging to the master base station where group of base stations, then according to institute
State handover request message and judge whether the target BS is prothetic group station in another group of base stations；If so, then
The handover request message, the handover request are sent to the master base station in group of base stations where the target BS
Message is transmitted to the target BS by the master base station in group of base stations where the target BS, otherwise to described
Target BS sends the handover request message；Notify the use on the corresponding prothetic group station of the handover request message
Family equipment is switched to the target BS；
Prothetic group station, for sending handover request message to master base station, comprising described in the handover request message
The target BS information of the user equipment switching on prothetic group station；It is additionally operable to the user equipment switching on prothetic group station
During target BS outside to group of base stations, the switching notice that the master base station sends is received, and by the notice transparent transmission
To the user equipment on the prothetic group station.
Switching equipment, for connecting the master base station and the prothetic group station, according to the forwarding port being pre-configured with
Corresponding relation, the message from the master base station or the prothetic group station that forwarding is received.
It can be seen that master base station and the prothetic group station are connected by switching equipment in the above embodiment of the present invention
Connect, being wherein stored with master base station resides in the contextual information of the user on prothetic group station, in group of base stations
Prothetic group station on user equipment when needing to switch over, master base station receive prothetic group station transmission switching please
Message is sought, when the user equipment on prothetic group station in group of base stations needs to switch the target BS outside group of base stations,
Handover request message is sent to the target BS outside group of base stations by master base station, and receives target BS by master base station
The switching notice of return, i.e. each prothetic group station only need the user equipment on each prothetic group station for the treatment of in group of base stations
Signaling process during interior switching, and signaling of the user equipment on each prothetic group station when being switched to outside group of base stations
Flow is processed by master base station, so as to reduce caused by the user's switching in group of base stations on each prothetic group station
The increased problem for the treatment of signaling traffic load on prothetic group station, solves the scene in the presence of the small range covering of multiple base stations
The treatment increased problem of load in base station caused by lower user's frequent switching, the user that can be reduced under the scene cuts
Mortality is changed, on the basis of the network coverage and capacity is met, network performance is improved and user is perceived.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, institute in being described to embodiment below
The accompanying drawing for needing to use is briefly introduced, it should be apparent that, drawings in the following description are only of the invention
Some embodiments, for one of ordinary skill in the art, are not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of basic network framework of current LTE network；
Fig. 2 is a kind of network architecture of optimization that the embodiment of the present invention is applicable；
Fig. 3 is a kind of schematic flow sheet of communication means provided in an embodiment of the present invention；
Flow chart when Fig. 4 is a kind of communication means concrete application provided in an embodiment of the present invention；
Fig. 5 is the structural representation of base station provided in an embodiment of the present invention；
Fig. 6 is the structural representation of system provided in an embodiment of the present invention.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing to this hair
It is bright to be described in further detail, it is clear that described embodiment is only some embodiments of the invention,
Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out all other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
Currently, a kind of network architecture of the LTE network after HeNB is introduced specifically can be as shown in Figure 1.
Wherein, the cell coverage area of HeNB is small, generally can be configured single HeNB or local HeNB clusters,
Configured according to application scenarios during concrete application, such as under typical household resident application scenarios, configuration
Single HeNB, i.e. CSG (closed user group, Closed Subscriber Group), in campus or large-scale
Under inhabitation scene, the HeNB clusters of HeNB clusters, i.e. CSG are configured, under some public place scenes,
The open single HeNB for accessing of configuration.
As shown in figure 1, a kind of network architecture of current LTE network can include：Part HeNB passes through
S1 interfaces and core net node MME/S-GW (Mobility Management Entity/Serving
GateWay, mobile management nodes/gateway) be joined directly together, reduce interface signaling amount of interaction and
The treatment load of MME/S-GW, it is to avoid UE frequently switches in moving process, this kind of networking structure
It is generally adapted the less environment of network initial deployment HeNB nodes；In the situation that HeNB node deployments increase
Under, centralized node HeNB GW (HeNB Gateway) are usually introduced, to HeNB and core net node
Signaling and data between MME/S-GW are converged and forwarded, the control plane of centralized Control S1 interfaces
Or can be reduced because a large amount of HeNB are accessed with the control plane of centralized Control S1 interfaces and user plane
Increase the treatment load on core net MME/S-GW, under this kind of networking structure, HeNB passes through S1 interfaces
Connection HeNB GW, HeNB GW are by S1 interfaces and core net node MME/S-GW；ENB leads to
Cross S1 interfaces connection core net node MME/S-GW；HeNB and HeNB and HeNB and eNB
Between be attached by X2 interface；In addition, when HeNB supports LIPA (Local IP Access, sheet
Ground IP access) function when, support and MME/S-GW between S5 interfaces.
According to the networking structure of above-mentioned Fig. 1, it can be seen that because HeNB coverages are small, therefore in reality
In network environment, it may appear that the situation of multiple HeNB is installed in a coverage.Particularly with space
Relatively large indoor public places, such as gymnasium, hospital, school place, due to each HeNB
The service access and release process of user can be performed to the user in coverage cell, it is thus possible to occur many
Individual user switching simultaneously or the situation meeting of user's frequent switching between two HeNB coverage cells, this will increase
The signaling treatment load of each HeNB, and then increase user's handover failure rate, reduce user and perceive.
For the networking structure feature that there is the small range covering of multiple base stations in Fig. 1, the embodiment of the present invention is proposed
A kind of communication means, base station and system, are used to reduce that under network structure user may occur is frequent
The treatment load on base station caused by switching increases, business datum is frequently switched the network performance for bringing and dropped
The increase of low and user's handover failure rate, the problem of user perceptibility reduction.
Based on the LTE network framework shown in Fig. 1, a kind of LTE nets of optimization provided in an embodiment of the present invention
Network framework, the network architecture can realize a kind of communication means that the embodiment of the present invention proposed, base station and be
System.The LTE network framework that Fig. 2 schematically illustrates a kind of optimization that the embodiment of the present invention is applicable is illustrated
Figure, may include in the network architecture：UE 201 (User Equipment, user equipment), HeNB 202,
Switching equipment 203, group of base stations 204, HeNB GW 205, MME/S-GW 206.
Under the network architecture shown in Fig. 2, to the HeNB202 in the coverage with multiple HeNB202
It is grouped, is obtained one or more group of base stations 204, each group of base stations 204 may include one or more
HeNB 202, when the HeNB202 in group of base stations is two and the above, can be by the HeNB202 in group
It is main HeNB202 and auxiliary HeNB202 to configure, and configures switching equipment 203 to each group of base stations 204.
A kind of embodiment of communication means that the embodiment of the present invention is provided specifically can apply to shown in Fig. 2
In group of base stations 204, wherein, can be attached by X2 interface between auxiliary HeNB 202；Group of base stations
HeNB 202 in 204, including main HeNB202 and auxiliary HeNB202, respectively with switching equipment 203 it
Between by S1 interfaces set up connection；Main HeNB202 and HeNB GW 205 in each group of base stations 204
Between by S1 interfaces set up connection；Connect by S1 between HeNB GW 205 and MME/S-GW 206
Mouth is attached, and UE 201 is attached by Uu interfaces with base station HeNB 202, master base station HeNB202
On be stored with and reside in the contextual information of the UE201 on the HeNB202 of prothetic group station.
Specifically, for apply the embodiment of the present invention under the network architecture with group of base stations to be provided one
Communication means is planted, in certain embodiments, when packet configuration is carried out to multiple base stations in advance, can be to every
Individual group of base stations is made a distinction using a group mark.Identified group of base stations is identified for a group, can be to all
Prothetic group station and master base station in the group of base stations configure its mark respectively in the group of base stations, such as, for
Mark of the master base station in the group of base stations can be identified directly using the group of the base station.For example, with Digital ID
As a example by group mark and Base Station Identification, when packet configuration is carried out, to a group of base stations configuration group mark 1,
The corresponding master base station of the group of base stations is designated 1, has n prothetic group station, each prothetic group station in the group of base stations
Mark be respectively 1-1,1-2 ... ... 1-n；To another group of base stations configuration group mark 2, the group of base stations pair
The master base station answered is designated 2, has m prothetic group station, the mark difference at each prothetic group station in the group of base stations
It is 2-1,2-2.... 2-m etc..
It should be pointed out that in embodiments of the present invention, base station 202 can be LTE system or LAA-LTE
Evolved base station (Evolutional Node B, referred to as eNB or e-NodeB), macro base station in system,
Micro-base station (also referred to as " small base station "), Home eNodeB (HeNB), femto base station, access website (Access
Point, referred to as AP) or transmission website (Transmission Point, referred to as TP) etc., the present invention
This is not limited.
It should be pointed out that in embodiments of the present invention, switching equipment 203 can be interchanger, router etc.,
The present invention is not limited this.
It should be pointed out that in embodiments of the present invention, " user equipment " it can be appreciated that " UE ", " terminal ",
" user " etc., it is presented above to represent relative to base station and core net, it is necessary to obtain service and data
The user of transmission.User equipment can be the handheld device with radio communication function, mobile unit, can wear
Wear equipment, computing device or be connected to other processing equipments of radio modem, and it is various forms of
User equipment (User Equipment, abbreviation UE), mobile station (Mobile station, abbreviation MS), terminal
(terminal), terminal device (Terminal Equipment) etc., the present invention is not limited this.
Specifically, when being actually grouped and being configured, can be according to the covering with multiple HeNB
In the range of the covering relation of HeNB the HeNB in the range of this is grouped, also, equally can be with root
It is main HeNB and auxiliary HeNB to the HeNB configurations in group, it is also possible to root according to the covering relation of HeNB
The HeNB in group is configured according to the capacity of each HeNB in group, such as selects the big conduct of capacity
Main HeNB, can also consider above-mentioned factor to configure the HeNB in group.General, one
It is main HeNB that a HeNB configuration can be selected in individual group of base stations, supplemented by other HeNB configurations
HeNB。
Based on the network architecture shown in Fig. 2, a kind of communication means provided in an embodiment of the present invention can apply to
Include master base station and prothetic group station in group of base stations shown in Fig. 2, the group of base stations, master base station and prothetic group station are by handing over
Exchange device is connected, wherein, it is stored with master base station and resides in the contextual information of the user on prothetic group station.
Specifically, the master base station in group of base stations can be set up in user by receiving prothetic group station with the prothetic group station
The Non-Access Stratum NAS signaling sent after connection, the user's included in the acquisition NAS signaling is upper
Context information；Contextual information to the user is stored, and the NAS signaling is pass-through into core
Net, so that be stored with master base station residing in the contextual information of the user on prothetic group station.Wherein, institute
It can be that user reconfigures signaling message to state NAS signaling.
In some embodiments, it is also possible to be to be reported to be resident with the prothetic group station by prothetic group station owner's trend master base station
User contextual information, master base station stored after the information for receiving the prothetic group station active reporting,
So that be stored with master base station residing in the contextual information of the user on prothetic group station.
For example, under a kind of scene of specific implementation, being divided in group of base stations and master base station being configured with prothetic group station
Cheng Hou, master base station can be set up by S1 interfaces with interchanger and is connected, while prothetic group station is also logical with interchanger
Cross S1 interfaces and set up connection, when there is user to access prothetic group station, RRC is set up in prothetic group station in success with user
Non-Access Stratum NAS signaling can be sent to master base station by interchanger by S1 interfaces after connection, by main base
Is stood and this is forwarded to core net to Non-Access Stratum NAS signaling, master base station is forwarding Non-Access Stratum NAS letters
When making, the contextual information of the user included in the Non-Access Stratum NAS signaling is obtained first and is carried out
Storage, then is pass-through to core net by the NAS signaling so that be stored with master base station reside in it is auxiliary
The contextual information of the user on base station；
If group of base stations changes, such as new prothetic group station is added, the prothetic group station of the new addition can be with head
First set up by S1 interfaces with interchanger and be connected, the context of the user that will be resident on the current prothetic group station
Information is actively reported to master base station, so that the user resided on prothetic group station that is stored with master base station
Contextual information；
If group of base stations changes, such as be configured with new master base station, the new master base station can first with friendship
Change planes to be set up by S1 interfaces and connect, all prothetic group station owners for notifying to be connected on the interchanger by interchanger
The contextual information for reporting resident users on prothetic group station is moved, so that be stored with new master base station residing in
The contextual information of the user on prothetic group station.
Below based on the network architecture shown in Fig. 2, the embodiment of the present invention is described in detail with reference to accompanying drawing.
Fig. 3 shows a kind of schematic flow sheet of communication means provided in an embodiment of the present invention, the stream of the method
Journey can by group of base stations master base station realize, wherein, be stored with the use resided on prothetic group station on master base station
The contextual information at family.The flow may include steps of：
Step 301：Master base station receives the handover request message that prothetic group station sends.
Specifically, the handover request message (Handover Request) is to its coverage by prothetic group station
Interior UE measures configuration, is receiving the measurement report (Measurement Report) that UE is reported
Afterwards, with reference to the measurement reported result of UE, according to the handoff algorithms of itself, switch over what is generated after adjudicating
Handover request message.The handover request message is sent switching equipment by prothetic group station by S1 interfaces, by exchanging
The handover request message is forwarded to master base station by equipment by being connected with the S1 that master base station is set up.Wherein, it is auxiliary
The measurement configuration that base station is sent to UE be by signaling RRC Connection Reconfiguration message come
Issue and require UE configurations.
Specifically, comprising for switching the relevant information for preparing, such as the X2 of UE in the handover request message
With S1 signaling context references, Target Cell Identifier, key KeNode B*, RRC context, AS
Configuration, E-UTRAN Radio Access Bearer (E-UTRAN Radio Access Bearer) context etc..
Simultaneously also include cell-of-origin physical layer identifications and message authentication identifying code, for possible handoff failure after it is extensive
Multiple process.For applying the embodiment of the present invention under the network architecture with one or more group of base stations to be carried
A kind of communication means for supplying, due to that may there is the switching in different base station group between base station, specifically,
It is used to switch the relevant information for preparing included in the handover request message, should be able to indicate that the switching please
The group corresponding to the corresponding target BS of message is asked to identify, such as the target BS in handover request message
Cell ID contain target BS where corresponding group of identification information of group of base stations, be used to recognize target BS
Whether it is another prothetic group station in this group of base stations, or be the master base station in another group of base stations, or for another
Prothetic group station in one group of base stations, or and it is not belonging to the stand-alone base station of any group of base stations.The wherein group mark of base station
Knowledge can each group of base stations be configured when packet configuration is carried out to multiple base stations in advance for distinguishing
The group mark of different base station group, all prothetic group stations and mark of the master base station in the group of base stations in group of base stations are equal
Comprising this group of identification information.
Specifically, it is used to switch the relevant information for preparing included in the handover request message, should also be able to
Indicate group mark or the handover request message pair corresponding to the corresponding source prothetic group station of the handover request message
Master base station in group of base stations where the source prothetic group station answered is identified, and the corresponding source prothetic group of the handover request message
Station identifications, such as contain base where the prothetic group station of source for the target base station community IDs in handover request message
The auxiliary base station identification information of master base station identification information and source stood in group, is used to assist target BS to find source base
The position of source base station, completes switching flow in group of base stations where standing and the group of base stations.
As an example it is assumed that when packet configuration is carried out in advance, to a group of base stations configuration group mark 1, should
The corresponding master base station of group of base stations is designated 1, has n prothetic group station, each prothetic group station identifications in the group of base stations
Respectively 1-1,1-2 ... ... 1-n；To another group of base stations configuration group mark 2, the corresponding master of the group of base stations
Base Station Identification is 2, has m prothetic group station in the group of base stations, and each prothetic group station identifications is respectively 2-1,
2-2.……2-m；And a stand-alone base station configuration group to being not belonging to any group of base stations identifies 0 situation：
When the UE on the prothetic group station 1-1 that group is designated in 1 group of base stations 1 needs to switch over, auxiliary
The mark 1-1 at the source prothetic group station, the source prothetic group can be included in the handover request message generated on the 1-1 of base station
The mark 1-1 for standing is while indicate the group mark 1 of group of base stations where the source prothetic group station：When needing to be switched to base
During another prothetic group station 1-3 in group of standing 1, the target prothetic group station can also be included in the handover request message
Mark 1-3, indicating the target prothetic group station is and the prothetic group station in the same group of base stations of 1-1 of prothetic group station；When
When needing to be switched to the prothetic group station 2-1 that group is designated in 2 group of base stations 2, may be used also in the handover request message
With the mark 2-1 comprising the target prothetic group station, the mark 2-1 at the target prothetic group station indicates the target prothetic group
The group mark 2 of group of base stations where standing；When need to be switched to group be designated 0 stand-alone base station when, the switching please
Ask can also be comprising the target BS in message mark 0, it is the independence outside group of base stations 1 to indicate the base station
Base station.
Step 302：If the target base of the user equipment that master base station judges to be switched according to the handover request message
Station be not belonging to the master base station where group of base stations, then master base station to the target BS send handover request message.
Specifically, step 302 can include：Master base station judges according to the handover request message for receiving first
Whether the target BS of the user equipment being switched is some prothetic group in group of base stations where the master base station
Stand, if the target BS is a prothetic group station in the group of base stations where the master base station, master base station cuts this
Change request message transparent transmission.
Specifically, step 302 can include：If master base station judges what is be switched according to the handover request message
The target BS of user equipment be not belonging to the master base station where group of base stations, then master base station is according to the handover request
Message judges whether the target BS is prothetic group station in another group of base stations.
If it is the prothetic group station in another group of base stations that the master base station judges the target BS, master base station to
Master base station in group of base stations where the target BS sends the handover request message, the handover request message by
Master base station in group of base stations where the target BS is transmitted to the target BS, and otherwise master base station is to the target base
Stand and send the handover request message.
Wherein, master base station is parsed to received handover request message, if parsing the handover request
The corresponding target BS of message is a prothetic group station in the group of base stations where the master base station, and master base station cuts this
Change request message transparent transmission.In certain embodiments, base where the master base station can be configured on master base station in advance
The cell identity information at all prothetic group stations stood in group, master base station is parsed after handover request message is received
Go out the cell identity information of the corresponding target BS of handover request message, by owning that inquiry is pre-configured with
The cell identity information at prothetic group station, so as to judge whether the target BS is in group of base stations where the master base station
A prothetic group station, in further embodiments, such as to every when in advance multiple base stations are carried out with packet configuration
Individual group of base stations is configured with group a situation for mark, can according to the handover request message for parsing whether with main base
The group mark of standing corresponding is identical to judge whether the target BS is in group of base stations where the master base station
One prothetic group station.
Specifically, when target BS is a prothetic group station in the group of base stations, master base station is to the handover request
Message carries out transparent transmission, and the handover request message directly can be led to by the corresponding source prothetic group station of the handover request message
The target prothetic group station that X2 interface is sent in group of base stations is crossed, under this situation, all of hand off signaling interaction
Can occur over just on source prothetic group station and target prothetic group station, and be transmitted by X2 interface, its signaling is handed over
Mutual flow is same as the prior art.
If parsing the group of base stations where the corresponding target BS of handover request message is not belonging to the master base station,
That is the target BS of the corresponding UE of the handover request message is not any in the group of base stations where the master base station
Prothetic group station, then master base station continuation judges whether the target BS is another base station according to the handover request message
Prothetic group station in group.
If master base station judges that the target BS is the prothetic group station in another group of base stations, master base station is to the mesh
Master base station in group of base stations where mark base station sends the handover request message, and the handover request message is by the mesh
Master base station in group of base stations where mark base station is transmitted to the target BS.
If master base station judges that the target BS is organized outward where the master base station and is not belonging to any one base station
Group, then master base station is to the target BS transmission handover request message.
Step 303：The master base station notifies the user equipment on the corresponding prothetic group station of the handover request message
It is switched to the target BS.
Specifically, it is the base station outside group of base stations for target BS, handover request is received in the target BS
Message, after completing resource reservation, can return to handover request and ring to the master base station in group of base stations where source base station
Should, the response can trigger the corresponding UE of the handover request message and switch over.Master base station receives this and cuts
After changing request response, can be according to the context of the corresponding user of the switching request response stored on master base station
Information, notifies that the UE is switched over, and master base station can be by saturating by interchanger by the switching request response
Pass to the user and be currently located prothetic group station, the switching request response is further transparent to by this by the prothetic group station
UE, makes the UE initiate handoff procedure using the information in the switching request response, from source base station attachment removal,
And perform synchronous with target BS.
Specifically, it is the base station outside group of base stations for target BS, RRC is set up in UE and the target BS
After connection, the context that target BS can send UE to the master base station in group of base stations where source base station discharges
Message, notifies the success of source base station switching, and the master base station in group of base stations where triggering source base station is to the user's
Contextual information is discharged, and master base station forwards the message to source base station simultaneously, source base station is discharged correspondence
The radio bearer of the UE and the control plane resource related to the user's context.
Preferably, it is the prothetic group station in group of base stations for target BS, is set up with the target BS in UE
After RRC connections, can also include：Master base station receives UE successful switch of the prothetic group station on the prothetic group station and arrives
The release sent after target BS outside group of base stations is notified, according to the release notice release storage in the master
The contextual information of the user on base station.
Wherein, release notice can include UE marks, master base station mark and auxiliary base station identification information.
Further, if the target BS is the prothetic group station in group of base stations, set up with target BS in UE
After RRC connections, can also include：Master base station receives UE successful switch of the prothetic group station on the prothetic group station
The update notification sent after to the target prothetic group station in the group of base stations, updates according to the update notification and stores
The contextual information of the user on the master base station.
Wherein, update notification can include the target prothetic group station cell ID of this group of base stations, the auxiliary base station cell mark in source
Know and UE identification informations.
For the network architecture as shown in Figure 2, and can be applied under the network architecture as shown in Figure 3
A kind of group of base stations of the flow of communication means provided in an embodiment of the present invention, wherein, master is included in the group of base stations
Base station and prothetic group station, master base station and prothetic group station are connected by switching equipment, and being stored with master base station, it is auxiliary to reside in
The contextual information of the user on base station, wherein, the data traffic flows of base station in core net and the group of base stations,
It can be specifically below scheme：
Master base station receives the downlink data that core net sends to the user equipment on prothetic group station；
Master base station, will be descending according to the contextual information for residing in the user on prothetic group station stored on master base station
Data is activation gives downlink data corresponding user equipment.
In order to be more clearly understood that communication means that the embodiment of the present invention provided in specific actual scene
Using based on the network architecture shown in Fig. 2, for the flow shown in Fig. 3, with the prothetic group in a group of base stations
As a example by the UE being resident on standing needs to switch over, it is possible that Fig. 4 specifically illustrates institute when the UE needs to switch
Some scenes, than if desired for being switched to handover situations in the group in group of base stations, it is necessary to be switched to outside group of base stations
Stand-alone base station handover situations and handover situations between needing to be switched to the group of group of base stations outside group of base stations.
By above description as can be seen that a kind of communication means that the embodiment of the present invention is provided can apply to
Include master base station and prothetic group station in group of base stations, the group of base stations, master base station and prothetic group station are connected by switching equipment,
It is stored with master base station and resides in the contextual information of the user on prothetic group station.Wherein, master base station receives prothetic group
Stand the handover request message for sending, whether the target BS of user equipment that judgement is switched belongs to the master base station
The group of base stations at place, and judge whether target BS is prothetic group station in another group of base stations；If another
Prothetic group station in individual group of base stations, then master base station please to the master base station transmission switching in group of base stations where target BS
Message is sought, target BS is transmitted to by the master base station in group of base stations where target BS, otherwise master base station is to mesh
Mark base station sends the handover request message；Master base station is notified on the corresponding prothetic group station of the handover request message
User equipment is switched to target BS.It can be seen that, for covering with multiple base stations in the embodiment of the present invention
Base station in the range of lid is grouped, and is master base station and prothetic group station to the base station planning in group of base stations, and is incited somebody to action
Master base station sets up the connection of communication link with prothetic group station by switching equipment, optimizes existing LTE network frame
Structure, being configured with the LTE network framework of group of base stations after optimization, for the prothetic group station in a group of base stations
Upper resident UE, when it needs to switch the target BS outside group of base stations, handover request message is by main base
Station is sent to the target BS outside group of base stations, and receives the switching notice that target BS is returned by master base station, i.e.,
The signaling process that UE on each prothetic group station is switched to when outside group of base stations is processed by master base station, so that
The treatment signaling traffic load on each prothetic group station in group of base stations is reduced, is solved in the presence of the small range covering of multiple base stations
Scene under the treatment increased problem of load in base station caused by user's frequent switching, can reduce under the scene
User's handover failure rate, on the basis of the network coverage and capacity is met, improves network performance and user's sense
Know.
Based on identical technology design, the embodiment of the present invention also provides a kind of base station, and the base station applies are in base station
Include master base station and prothetic group station in group, the group of base stations, the master base station and the prothetic group station are set by exchange
Standby connection, when the base station is configured as master base station, be stored with the user resided on prothetic group station on the base station
Contextual information, the executable above method embodiment in the base station.Base station provided in an embodiment of the present invention is as schemed
Shown in 5.
Receiver module 501, when the base station is configured as master base station, for receiving cutting for prothetic group station transmission
Change request message；
Sending module 502, when the base station is configured as master base station, for according to the handover request
Message judge the target BS of user equipment being switched be not belonging to the master base station where group of base stations when, to
The target BS sends the handover request message；
Notification module 503, when the base station is configured as master base station, for notifying that the handover request disappears
The user equipment ceased on corresponding prothetic group station is switched to the target BS.
Wherein, sending module 502, when the base station is configured as master base station, specifically for according to institute
State handover request message and judge that the target BS of the user equipment being switched is the prothetic group in another group of base stations
When standing, the handover request message is sent to the master base station in group of base stations where the target BS, it is described to cut
Change request message and the target BS is transmitted to by the master base station in group of base stations where the target BS.
Preferentially, when the base station is configured as master base station, also include：
Transparent transmission module 504, for the mesh in the user equipment for judging to be switched according to the handover request message
When mark base station is the prothetic group station in the group of base stations where the master base station, then the master base station please by the switching
Seek message transparent transmission.
Preferably, when the base station is configured as master base station, also include：
Memory module 505, sends for receiving prothetic group station after user equipment and the prothetic group station are set up and be connected
Non-Access Stratum NAS signaling, obtain the contextual information of the user included in the NAS signaling；
And for storing the contextual information of the user, the NAS signaling is pass-through to core net.
Preferably, when the base station is configured as master base station, the memory module 505 is additionally operable to：Receive
User equipment successful switch of the prothetic group station on the prothetic group station is sent out to after the target BS outside the group of base stations
The release sent notifies, is notified to discharge the upper and lower of the user of the storage on the master base station according to the release
Literary information.
Preferably, when the base station is configured as master base station, the memory module 505 is additionally operable to：Receive
User equipment successful switch of the prothetic group station on the prothetic group station is to behind the target prothetic group station in the group of base stations
The update notification of transmission, the upper of the user of the storage on the master base station is updated according to the update notification
Context information.
Preferably, when the base station is configured as master base station, also include：
Data module 506, for receiving the lower line number that core net sends to the user equipment on the prothetic group station
According to according to the contextual information for residing in the user on prothetic group station stored on the master base station, under described
Row data are sent to the corresponding user equipment of the downlink data.
Based on identical technology design, the embodiment of the present invention also provides a kind of system, and the system is applied to base station
Include master base station and prothetic group station in group, the group of base stations, the master base station and the prothetic group station are set by exchange
Standby connection, is stored with the master base station and resides in the contextual information of the user on prothetic group station, and the system can
Realize above method embodiment.System provided in an embodiment of the present invention is as shown in Figure 6.
Master base station 601, the handover request message for receiving the transmission of prothetic group station；If according to the handover request
Message judge the target BS of user equipment being switched be not belonging to the master base station where group of base stations, then root
Judge whether the target BS is prothetic group station in another group of base stations according to the handover request message；If
It is then to send the handover request message to the master base station in group of base stations where the target BS, it is described to cut
Change request message and the target BS is transmitted to by the master base station in group of base stations where the target BS, otherwise
The handover request message is sent to the target BS；Notify the corresponding prothetic group station of the handover request message
On user be switched to the target BS；
Prothetic group station 602, for sending handover request message to master base station, includes in the handover request message
The target BS information of the user equipment switching on the prothetic group station；It is additionally operable to the user equipment on prothetic group station
During the target BS being switched to outside group of base stations, the switching notice that the master base station sends is received, and this is notified
Pass through the user equipment on the prothetic group station.
Switching equipment 603, for connecting the master base station and the prothetic group station, according to the forwarding being pre-configured with
Port corresponding relation, the message from the master base station or the prothetic group station that forwarding is received.
These technologies described by a kind of communication means, base station and system that the embodiment of the present invention is provided can be with
Realized with hardware, software or their combination.Realized for hardware, can be special at one or more
Integrated circuit (English abbreviation：ASIC), digital signal processor (English abbreviation DSP), data signal
Processing apparatus (English abbreviation：DSPD), PLD (English abbreviation：PLD), scene can
Programming gate array (English abbreviation：FPGA), processor, controller, microcontroller, microprocessor, with
And be designed for realizing other electronic units of function described herein, or combinations thereof and realize.
For software implementation, these technologies can use module (such as program, function for realizing function described herein
Etc.) realize.Software code can be stored in a memory cell, and by computing device.Memory
Unit can be realized in processor or outside processor.
The present invention is produced with reference to method according to embodiments of the present invention, equipment (system) and computer program
The flow chart and/or block diagram of product is described.It should be understood that can by computer program instructions realize flow chart and
/ or block diagram in each flow and/or the flow in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions to all-purpose computer, special-purpose computer, insertion can be provided
The processor of formula processor or other programmable data processing devices is producing a machine so that by calculating
The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one
The device of the function of being specified in individual flow or multiple one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or the treatment of other programmable datas to set
In the standby computer-readable memory for working in a specific way so that storage is in the computer-readable memory
Instruction produce include the manufacture of command device, the command device realization in one flow of flow chart or multiple
The function of being specified in one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, made
Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place
Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one
The step of function of being specified in flow or multiple one square frame of flow and/or block diagram or multiple square frames.
, but those skilled in the art once know base although preferred embodiments of the present invention have been described
This creative concept, then can make other change and modification to these embodiments.So, appended right will
Ask and be intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this hair to the present invention
Bright spirit and scope.So, if it is of the invention these modification and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprising these changes and modification.
Claims (15)
1. a kind of communication means, it is characterised in that be applied to include main base in group of base stations, the group of base stations
Stand and prothetic group station, the master base station and the prothetic group station are connected by switching equipment, are stored on the master base station
There is the contextual information for residing in the user on prothetic group station, the method includes：
Master base station receives the handover request message that prothetic group station sends；
If the target BS of the user equipment that the master base station judges to be switched according to the handover request message
Group of base stations where being not belonging to the master base station, then the master base station is to the target BS transmission switching
Request message；
The master base station notifies that the user equipment on the corresponding prothetic group station of the handover request message is switched to institute
State target BS.
2. the method for claim 1, it is characterised in that the master base station is to the target BS
The handover request message is sent, including：
If the target of the user equipment that the master base station is switched according to the handover request message judges
Base station is the prothetic group station in another group of base stations, then the master base station is in group of base stations where the target BS
Master base station send the handover request message, the handover request message is by base station where the target BS
Master base station in group is transmitted to the target BS.
3. the method for claim 1, it is characterised in that also include：
If the target BS of the user equipment that the master base station judges to be switched according to the handover request message
Prothetic group station in group of base stations where the master base station, then the master base station is saturating by the handover request message
Pass.
4. the method for claim 1, it is characterised in that also include：
The master base station receives prothetic group station the non-of transmission after user equipment and the prothetic group station are set up and be connected and connects
Enter a layer NAS signaling, obtain the contextual information of the user included in the NAS signaling；
The master base station stores the contextual information of the user, and the NAS signaling is pass-through into core net.
5. the method for claim 1, it is characterised in that also include：
The master base station receives user equipment successful switch of the prothetic group station on the prothetic group station to the base station
The release sent after target BS outside group is notified, according to the release notice release storage in the master base station
On the user contextual information.
6. the method for claim 1, it is characterised in that also include：
The master base station receives user equipment successful switch of the prothetic group station on the prothetic group station to the base station
The update notification sent behind target prothetic group station in group, storage is updated in the main base according to the update notification
The contextual information of the user on standing.
7. the method as described in any one of claim 1 to 6, it is characterised in that also include：
The master base station receives the downlink data that core net sends to the user equipment on the prothetic group station；
The master base station is according to the context for residing in the user on the prothetic group station letter stored on the master base station
Breath, the prothetic group station where the downlink data is sent into the corresponding user equipment of the downlink data, by institute
State prothetic group station and be sent to the user equipment.
8. a kind of base station, it is characterised in that be applied to include in group of base stations, the group of base stations master base station and
Prothetic group station, the master base station and the prothetic group station are connected by switching equipment, are stored with the master base station and stayed
The contextual information of the user stayed on prothetic group station, including：
Receiver module, when the base station is configured as master base station, the switching for receiving the transmission of prothetic group station please
Seek message；
Sending module, when the base station is configured as master base station, for according to the handover request message
The target BS of user equipment that judgement is switched be not belonging to the master base station where group of base stations when, to described
Target BS sends the handover request message；
Notification module, when the base station is configured as master base station, for notifying the handover request message pair
The user equipment on prothetic group station answered is switched to the target BS.
9. base station as claimed in claim 8, it is characterised in that the sending module, in the base station
When being configured as master base station, specifically for：
The target BS of the user equipment being switched described in judged according to the handover request message is as another
During prothetic group station in individual group of base stations, the switching is sent to the master base station in group of base stations where the target BS
Request message, the handover request message is transmitted to institute by the master base station in group of base stations where the target BS
State target BS.
10. base station as claimed in claim 8, it is characterised in that be configured as master base station in the base station
When, also include：
Transparent transmission module, for the target base in the user equipment for judging to be switched according to the handover request message
During prothetic group station in the group of base stations stood where the master base station, then the master base station disappears the handover request
Breath transparent transmission.
11. base stations as claimed in claim 8, it is characterised in that be configured as master base station in the base station
When, also include：
Memory module, for receive prothetic group station after user equipment and the prothetic group station are set up and be connecteds transmission it is non-
Access Layer NAS signaling, obtains the contextual information of the user included in the NAS signaling；And
Contextual information for storing the user, core net is pass-through to by the NAS signaling.
12. base stations as claimed in claim 8, it is characterised in that be configured as master base station in the base station
When, the memory module is additionally operable to：
Receive user equipment successful switch of the prothetic group station on the prothetic group station to the target outside the group of base stations
The release sent behind base station notifies, is notified to discharge the use of the storage on the master base station according to the release
The contextual information at family.
13. base stations as claimed in claim 8, it is characterised in that be configured as master base station in the base station
When, the memory module is additionally operable to：
Receive user equipment successful switch of the prothetic group station on the prothetic group station to the target in the group of base stations
The update notification sent behind prothetic group station, updates described in storing on the master base station according to the update notification
The contextual information of user.
14. base station as described in any one of claim 8 to 13, master base station is configured as in the base station
When, it is characterised in that also include：
Data module, for receiving the downlink data that core net sends to the user equipment on the prothetic group station,
According to the contextual information for residing in the user on prothetic group station stored on the master base station, by the lower line number
According to being sent to the corresponding user equipment of the downlink data.
15. a kind of communication systems, it is characterised in that be applied to include main base in group of base stations, the group of base stations
Stand and prothetic group station, the master base station and the prothetic group station are connected by switching equipment, are stored on the master base station
There is the contextual information for residing in the user on prothetic group station, the system includes：
Master base station, the handover request message for receiving the transmission of prothetic group station；If according to the handover request message
The target BS of user equipment that judgement is switched be not belonging to the master base station where group of base stations, then according to institute
State handover request message and judge whether the target BS is prothetic group station in another group of base stations；If so, then
The handover request message, the handover request are sent to the master base station in group of base stations where the target BS
Message is transmitted to the target BS by the master base station in group of base stations where the target BS, otherwise to described
Target BS sends the handover request message；Notify the use on the corresponding prothetic group station of the handover request message
Family equipment is switched to the target BS；
Prothetic group station, for sending handover request message to master base station, comprising described in the handover request message
The target BS information of the user equipment switching on prothetic group station；It is additionally operable to the user equipment switching on prothetic group station
During target BS outside to group of base stations, the switching notice that the master base station sends is received, and by the notice transparent transmission
To the user equipment on the prothetic group station；
Switching equipment, for connecting the master base station and the prothetic group station, according to the forwarding port being pre-configured with
Corresponding relation, the message from the master base station or the prothetic group station that forwarding is received.
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| CN111918345A (en) * | 2019-05-09 | 2020-11-10 | 大唐移动通信设备有限公司 | Method and device for switching main node and auxiliary node under non-independent networking scene |
| CN112399505A (en) * | 2019-08-19 | 2021-02-23 | 大唐移动通信设备有限公司 | Auxiliary base station switching method of terminal equipment and base station |
| CN112703698A (en) * | 2019-01-29 | 2021-04-23 | Oppo广东移动通信有限公司 | Access network node management method, terminal device, network device, and storage medium |
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