CN105992273A - Method and device for providing relay access service in LTE network, and relay terminal - Google Patents
Method and device for providing relay access service in LTE network, and relay terminal Download PDFInfo
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- CN105992273A CN105992273A CN201510088661.9A CN201510088661A CN105992273A CN 105992273 A CN105992273 A CN 105992273A CN 201510088661 A CN201510088661 A CN 201510088661A CN 105992273 A CN105992273 A CN 105992273A
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Abstract
The present invention provides a method and device for providing relay access service in a LTE network, and a relay terminal. The LTE network comprises a relay node configured to connect with a donor base station and a user terminal, and the relay node includes a relay base station and a relay terminal configured to provide access service for the relay base station. The method is applied to the relay terminal. The method comprises: obtaining received business type of the data flow of the relay base station, matching the wireless bearing corresponding to the received business type of the data flow; if there is matching wireless bearing, and transmitting the data flow to the donor base station through the wireless bearing obtained through matching. While the problem is solved that the wired transmission disposition of the wireless base station device is difficult in the disposition process, and the business type of the wireless bearing can be divided so as to realize Qos control.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of LTE (Long Term Evolution, length
Phase evolution) network provides method, device and the link terminal of relaying access service.
Background technology
Existing forth generation mobile communication 4G (4th Generation) LTE network mainly includes that three class networks set
Standby, core net (Evolved Packet Core is called for short EPC) equipment (includes the mobile management of chain of command
Entity (Mobility Management Entity is called for short MME) and gateway (Serving Gateway, letter
Claim SGW), base station (E-UTRAN NodeB, be called for short ENB) and user terminal (User Equipment,
It is called for short UE) composition.
As it is shown in figure 1, user terminal is directly by eating dishes without rice or wine with ENB is connected in existing LTE network framework,
The protocol stack structure of user face and chain of command is respectively such as Fig. 2 and Fig. 3, and wherein user plane protocol stack architecture is mainly retouched
When having stated data receiver and the transmission that user has reality, the different network elements relating to and corresponding agreement process.
Chain of command protocol stack structure essentially describes the signaling message between user terminal and core net and transmits the association relating to
View processing procedure.
Under normal circumstances, during user's start-up logging in the lte networks, network can divide to user terminal
Join an IP address, be addressed during for subsequent user plane transmitting-receiving.For general subscriber terminal,
When NAS (Non-access stratum, the Non-Access Stratum) signaling of chain of command has message to need to send, NAS
Layer can pass to the RRC within user terminal by the data link within user terminal NAS message
(Radio Resource Control, radio resource control layer) layer, would generally be with NAS inside user terminal
The data being sent with the form notice rrc layer of RRC agreement interlayer agreement are NAS message, and generally
The form of this agreement can't standardize and belong to the problem implementing.Further, rrc layer is NAS
Message pass to PDCP (Packet Data Convergence Protocol, PDCP) and
During RLC (Radio Link Control, wireless spread-spectrum technology) layer, according to predefined mode, data can be reflected
It is mapped to corresponding radio bearer (Radio Bearer).Signaling message is generally of higher processing priority, base
When the mapping relations also according to agreement of standing determine on described radio bearer the NAS message of transmission, base station for
This radio bearer provides the quality assurance of priority level Qos (Quality of service).That is, at present
LTE network by signaling and data are mapped in corresponding carrying, thus realize the control of Qos.
It is described above the substantially transmitting procedure of chain of command signaling message and carrying maps big with what Qos ensured
Cause mechanism, for the data in user face, in order to realize that corresponding Qos controls, need also exist for a user face number
Carry accordingly according to being mapped to such that it is able to allow base station realize that the Qos distinguishing carrying controls.Specifically,
NAS between RRC signaling between user terminal and base station and user terminal and Mobility Management Entity
Signaling belongs to chain of command signaling message, has explicitly defined for RRC signaling and NAS signaling in specification,
User terminal can complete SRB (signaling radio bearer, letter while setting up RRC connection with base station
Make radio bearer) foundation, RRC and NAS is mapped to SRB by user terminal can realize Qos control,
Especially in the case that Radio Resource congestion occurs in network, it is ensured that the scheduling of signaling message and transmission.
As described above, the application layer data that user face data carrying is actual, different application types, data institute
The Qos parameter needing is different, user terminal and core net typically require according to initiate " type of business " with
The Qos attribute of the carrying having built up mates, if it is possible to coupling, then can be passed by existing carrying
Transmission of data, if cannot mating, what user terminal or core net can initiate dedicated bearer sets up process,
After completing dedicated bearer foundation, corresponding user face data is mapped to corresponding dedicated bearer by user terminal,
The Qos parameter of dedicated bearer also can be notified user terminal, base station by way of signaling message by network side
Deng network element, thus realize Qos control end to end.
Above describe data flow and the Qos pledge system of existing ordinary terminal, existing ordinary terminal and
Business can distinguishing signaling and different service types, thus realize the Qos control of signaling and data.
But, there is the difficult problem disposed of wireless base station wire transmission during disposing in the prior art,
Although new node that can be introduced in the lte networks is solving the difficult problem disposed of wire transmission, but should
The type of service that it carries cannot be distinguished by new node, thus cannot realize Qos control.
Content of the invention
In view of above-mentioned technical problem, the present invention provide in a kind of LTE network provide relaying access service method,
Device and link terminal, solving the difficult problem disposed of wireless base station device wire transmission during disposing
Meanwhile, it is capable to make a distinction its wireless bearer service type, thus realize Qos control.
According to one aspect of the present invention, provide a kind of method that relaying access service is provided in LTE network,
Described LTE network includes: for connecting the via node of donor base station and user terminal, and described relaying saves
Put and include: relay base station and the link terminal being used for providing for described relay base station access service, described method
Being applied to described link terminal side, described method includes: obtain the data stream from relay base station receiving
Type of service；According to the corresponding relation of the type of service pre-setting and radio bearer, mate and receive
The corresponding radio bearer of type of service of described data stream；If there is the radio bearer of coupling, then pass through
The described radio bearer that coupling obtains transmits described data and flow to donor base station.
Alternatively, the type of service of the data stream from relay base station that described acquisition receives, specifically includes:
Obtain the value of the specific field of the described data stream receiving；Value according to default specific field and industry
The corresponding relation of service type, coupling obtains the corresponding type of service of value of the specific field with described data stream.
Alternatively, the corresponding relation of the type of service that described basis pre-sets and radio bearer, match with
The radio bearer of the type of service coupling of the data stream from relay base station receiving, particularly as follows: according in advance
The type of service first arranging and the corresponding relation of the Qos parameter of radio bearer, mate and obtain and coming of receiving
From the corresponding radio bearer of type of service of the data stream of relay base station.
Alternatively, described method also includes: if there is not the radio bearer of coupling, then according to described data stream
Required Qos parameter sets up new radio bearer, and transmits described data by the new radio bearer set up
It flow to donor base station.
Alternatively, described method also includes: have built up if not having data stream to take within the predetermined time
Radio bearer, then the radio bearer that has built up described in release.
Alternatively, described method also includes: the IP data envelope of the multiple relay base station receiving is installed to institute
State the IP protocol header of link terminal, realizing IP tunnel function, or mail to multiple relaying base by receive
The data of the IP data solution IP tunnel stood decapsulate, and route to according to IP route or function of exchange
Corresponding relay base station.
Alternatively, described method also includes: receive downlink frame synchronization information T_frame_ue of described donor base station,
And obtained the frame synchronization information of described donor base station by Timing Advance Tadv when sending upstream data
T_frame_enb；The frame synchronization information of the described donor base station obtaining is adapted for the clock protocols form specified
Frame synchronization information and export to described relay base station, by the frame synchronization information of described relay base station use frame with
The biasing T_frame_offset of step adjusts the frame synchronization information T_frame_standard that synchronization obtains standard.
Alternatively, described method also includes: receive and preserve the downlink frame synchronization information of donor base station
T_frame_ue, and obtained the frame of described donor base station by Timing Advance Tadv when sending upstream data
Synchronizing information T_frame_enb；According to described donor base station configure frame timing information T_frame_offset and
The frame synchronization information T_frame_enb of the described donor base station equipment having obtained obtains the frame synchronization letter of standard
Breath T_frame_standard；The frame synchronization information T_frame_standard of the standard obtaining is adapted for specify
The synchronous form output of clock protocols to described relay base station.
Alternatively, the downlink frame of the frame synchronization information T_frame_enb=donor base station of described donor base station is same
Step information T_frame_ue+ sends Timing Advance Tadv/2 during upstream data；The frame synchronization of described standard
The frame synchronization information of the biasing T_frame_offset+ donor base station of information T_frame_standard=frame synchronization
T_frame_enb。
Alternatively, described method also includes: receive the request message setting up OM channel；According to described
Request message sets up the OM channel of described link terminal, can be long-range to described link terminal with realization
Operation and Maintenance.
Alternatively, described method also includes: arrange corresponding data buffer storage to the data stream of different service types
Queue；According to service priority or according to service priority weighting, data stream is sent to eat dishes without rice or wine.
According to another aspect of the present invention, additionally provide and a kind of LTE network provides relaying access service
Device, described LTE network includes: for connecting the via node of donor base station and user terminal, described
Via node includes: relay base station and for for described relay base station provide access service link terminal, institute
Stating device and being applied to described link terminal side, described device includes: acquisition module, receives for acquisition
Type of service from the data stream of relay base station；Matching module, for according to the type of service pre-setting
With the corresponding relation of radio bearer, mate the corresponding wireless of type of service with the described data stream receiving
Carrying；Sending module, if for the radio bearer that there is coupling, then described wireless being held by what coupling obtained
Carry the described data of transmission and flow to donor base station.
Alternatively, described acquisition module is further used for obtaining the specific field of the described data stream receiving
Value；Value according to default specific field and the corresponding relation of type of service, mate and obtain and described number
The corresponding type of service of value according to the specific field of stream.
Alternatively, described matching module is further used for according to the type of service pre-setting and radio bearer
The corresponding relation of Qos parameter, coupling obtains the type of service pair with the data stream from relay base station receiving
The radio bearer answered.
Alternatively, if described sending module is additionally operable to the radio bearer that there is not coupling, then according to described data
The required Qos parameter of stream sets up new radio bearer, and transmits described number by the new radio bearer set up
According to flowing to donor base station.
Alternatively, described device also includes: release module, if for not having data within the predetermined time
Stream takies the radio bearer having built up, the then radio bearer having built up described in release.
Alternatively, described device also includes: routing module, the IP of the multiple relay base station for receiving
Data envelope installs to the IP protocol header of described link terminal, realizing IP tunnel function, or will receive
The data of the IP data solution IP tunnel mailing to multiple relay base station decapsulate, and according to IP route or
Function of exchange routes to corresponding relay base station.
Alternatively, described device also includes: synchronization module, and the downlink frame for receiving described donor base station is same
Step information T_frame_ue, and obtain described alms giver's base by Timing Advance Tadv when sending upstream data
The frame synchronization information T_frame_enb standing；The frame synchronization information of the described donor base station obtaining is adapted for specify
The frame synchronization information of clock protocols form and export to described relay base station, by the frame of described relay base station with
Step information uses the biasing T_frame_offset of frame synchronization to adjust the frame synchronization information that synchronization obtains standard
T_frame_standard。
Alternatively, described synchronization module is additionally operable to: receive and preserve the downlink frame synchronization information of donor base station
T_frame_ue, and obtained the frame of described donor base station by Timing Advance Tadv when sending upstream data
Synchronizing information T_frame_enb；According to described donor base station configure frame timing information T_frame_offset and
The frame synchronization information T_frame_enb of the described donor base station equipment having obtained obtains the frame synchronization letter of standard
Breath T_frame_standard；The frame synchronization information T_frame_standard of the standard obtaining is adapted for specify
The synchronous form output of clock protocols to described relay base station.
Alternatively, the downlink frame of the frame synchronization information T_frame_enb=donor base station of described donor base station is same
Step information T_frame_ue+ sends Timing Advance Tadv/2 during upstream data；The frame synchronization of described standard
The frame synchronization information of the biasing T_frame_offset+ donor base station of information T_frame_standard=frame synchronization
T_frame_enb。
Alternatively, described device also includes: remote operation module, sets up OM channel for receiving
Request message；Set up the OM channel of described link terminal according to described request message, can with realization
Link terminal described in remote operation maintaining.
According to an additional aspect of the present invention, additionally provide a kind of link terminal, comprising: as above described in item
LTE network provides the device of relaying access service.
The invention has the beneficial effects as follows: first solving wireless base station device wire transmission difficulty during disposing
While the problem disposed, it is possible to achieve for the Qos control of the data transmission of its relay base station (second line of a couplet equipment)
System.Secondly, exporting synchronizing information by link terminal, saving its relay base station needs extra deployment synchronization
Cost required for device.Again, being enough embodied as multiple relay base station provides data route service, Yi Jishi
The now Operation and Maintenance control to relaying terminal remote.
Brief description
Fig. 1 is existing LTE network configuration diagram；
Fig. 2 is existing LTE network user face protocol stack structural representation；
Fig. 3 is existing LTE network chain of command protocol stack structure schematic diagram；
Fig. 4 is the network architecture schematic diagram supporting Relay (relaying) in embodiments of the invention；
Fig. 5 is the structural representation realizing Relay function in embodiments of the invention；
Fig. 6 is the protocol stack structure schematic diagram of Relay-UE in embodiments of the invention；
Fig. 7 is the trunk protocol stack architecture schematic diagram in user terminal user face in embodiments of the invention；；
Fig. 8 is one of trunk protocol stack architecture schematic diagram of user terminal chain of command in embodiments of the invention；
Fig. 9 is the two of the trunk protocol stack architecture schematic diagram of user terminal chain of command in embodiments of the invention；
Figure 10 is for providing the flow chart of the method for relaying access service in LTE network in embodiments of the invention；
Figure 11 is the schematic diagram of TD-LTE5ms subframe structure；
Figure 12 is for providing the block diagram of the device of relaying access service in LTE network in embodiments of the invention.
Detailed description of the invention
It should be noted that it is wired to typically require employing between the network equipment, between ENB and SGW/PGW
Transmission equipment transmit data, the transmission equipment in current LTE network is typically based on IP agreement, IP
Agreement can provide DIFFSERV function (different service, Differentiated Services function).In order to solve
The difficult problem disposed of wireless base station device wire transmission during disposing, as shown in Figure 4, in LTE network
Introducing Relay (relaying) network architecture, the new network node wherein introducing is that Relay node is (in figure
RN), Relay node is logically by Relay-ENB (relay base station) and Relay-UE (link terminal)
Module forms.A kind of feasible Relay implementation is as follows, uses the UE module as link terminal to be
Relay base station provides transmission, replaces the wire transmission mode of traditional base station, as shown in Figure 5.
As shown in Figure 6, the maximum difference of the protocol stack structure with common UE for the protocol stack of Relay-UE is,
It is no longer the operation layer data of common UE on the ip protocol layer of link terminal, but carry its second line of a couplet equipment
How the related protocol data of (relay base station), therefore, control and provide relaying access service for relay base station
The Qos of link terminal become problem to be solved.
Common UE internal wireless agreement in existing LTE network directly receives the business datum of application layer, logical
Crossing the mapping relations determining business rule and Qos, what UE or network initiation carried sets up process, further,
UE and network are by corresponding business or map signalling data to corresponding carrying, it is achieved based on carrying
Qos controls.But, UE provides access as enhanced apparatus (link terminal) for other kinds of equipment
During service (when such as UE is as the AM access module of relay base station), current common UE and network cannot be right
The type of service of its carrying is distinguished, thus cannot realize Qos control.
As shown in Figure 7, Figure 8 and Figure 9, sets forth the trunk protocol of user terminal user face and chain of command
Stack architecture and Relay base station operation safeguard the protocol stack structure of data.
As shown in Figure 8, wherein the chain of command data of user terminal be primarily referred to as user terminal (User UE) with
NAS (Non-Access Stratum data) between core net (MME of User UE) equipment, this NAS message is led to
S1AP (S1application part) agreement crossing the S1-C interface between Relay base station and core net carries,
Further, S1AP agreement is carried on Stream Control Transmission Protocol, and Stream Control Transmission Protocol is carried on again on IP agreement,
Wherein ip protocol layer is related here, and the source IP address of relay base station is designated that " IP-EN-ENB " is here
By the IP address that core net is this relay base station planning, purpose IP address is the MME of user's user terminal
IP address.Carry the IP packet of NAS message by standard between relay base station and link terminal
IP host-host protocol (IP is layer three agreement, and layer 2 protocol can be Ether protocoll etc.) be sent to link terminal it
After, link terminal sends as the data of application layer above-mentioned data to core-network side.
Similarly, as described in Figure 7, in the user plane protocol stack architecture of user terminal, when user has application layer
Data need transmission when, after this application layer data is delivered to relay base station, by relay base station will above-mentioned answer
It is encapsulated into GTP-U (user face GPRS Tunnel Protocol) by layer data, and be carried on UDP (user data
Datagram protocol) and IP agreement on, by the IP agreement etc. between relay base station and link terminal be sent to relaying
Terminal.Similarly, the differentiation to traffic data type cannot be realized after link terminal receives above-mentioned data,
In the such as data in user face, the business of speech business and WWW online class can be mapped to identical radio bearer.
Further, as described in Figure 9, the operation maintenance data of relay base station is by SNMP (single network pipe
Reason agreement) after/IP agreement is sent to link terminal, data type cannot be made a distinction by link terminal equally.
Cannot be carried out identifying and distinguishing between and then cannot realize that Qos protects at link terminal to solve multiple data stream
The problem of barrier, to this end, embodiments of the invention propose to provide in a kind of LTE network the side of relaying access service
Method, device and link terminal.
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows
The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure and should be by
Embodiments set forth here is limited.On the contrary, these embodiments are provided to be able to be best understood from this
Open, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
As shown in Figure 10, for LTE network in embodiments of the invention provides the method relaying access service
Flow chart, LTE network includes: for connecting the via node of donor base station and user terminal, described in
The node that continues includes: relay base station and for for described relay base station provide access service link terminal, described
Method is applied to described link terminal side, and concrete grammar 100 includes:
Step S101, the type of service obtaining the data stream from relay base station receiving；
Specifically, the value of the specific field of the data stream receiving first is obtained；Then according to the finger preset
Determining the value of field and the corresponding relation of type of service, coupling obtains taking of the specific field with described data stream
Being worth corresponding type of service, wherein type of service may is that speech business, the business etc. of WWW online class,
Certainly type of service is not limited in an embodiment of the present invention.Alternatively, it is intended that field can be IP data
In DSCP (Differentiated Services Code Point, differentiated services code points) field, certainly may be used
To be understood by, do not limit the concrete form of specific field in an embodiment of the present invention.
Step S103, the corresponding relation according to the type of service pre-setting and radio bearer, coupling and reception
The radio bearer of the type of service coupling of the data stream arriving；
Specifically, according to the type of service pre-setting pass corresponding with the value of the Qos parameter of radio bearer
System, coupling obtains the corresponding radio bearer of type of service with the data stream receiving.Alternatively, Qos parameter
Can be QCI (quality of service class identifier), for example: speech business is corresponding with the radio bearer of QCI=1.
If there is the radio bearer of coupling in step S105, then by mating the described radio bearer transmission obtaining
Described data flow to donor base station.
In an embodiment of the present invention, Qos control parameter or the ether association of IP agreement are set according to type of service
The 802.1p protocol header (COS, class of service) of view frame is between parameter and the Qos parameter of LTE business
Mapping relations；Or according to source IP address, purpose IP address, source port number, destination slogan, IP agreement
The protocol types of the upper-layer protocol comprising in Tou etc. and type of service, Qos control between parameter (such as QCI)
Mapping relations.
In an embodiment of the present invention, if the Qos parameter of configured radio bearer cannot be with the number receiving
According to the Qos parameter coupling of stream demand, then initiate new loading establishing process.The namely enforcement in the present invention
In example, method 100 also includes: if there is not the radio bearer of coupling, then according to needed for described data stream
Qos parameter set up new radio bearer, and transmit described data by the new radio bearer set up and flow to
Donor base station.
In an embodiment of the present invention, method 100 also includes: if not having data stream within the predetermined time
Take the radio bearer having built up, the then radio bearer having built up described in release.
Link terminal obtains the value of the specific field of the data stream receiving, then according to the designated word preset
The corresponding industry of value of the specific field that the value of section obtains data stream with the corresponding relation of type of service, coupling
Service type, wherein type of service can be speech business, the business etc. of WWW online class, certainly at this
Bright embodiment does not limit type of service.Alternatively, it is intended that field can be the DSCP in IP data
Field, it is of course possible to be understood by, does not limit the concrete form of specific field in an embodiment of the present invention.
Afterwards, the data stream to different service types for the link terminal arranges corresponding data buffer storage queue (can be empty
Intend queue), then link terminal weights the transmission of data stream according to service priority or according to service priority
To eating dishes without rice or wine.
The following Tables 1 and 2 of mapping relations between type of service defined in LTE and the QCI of radio bearer
Shown in, DSCP territory (field specified) value of the IP data such as receiving is 46, then it is assumed that this business
Type is speech business (seeing Tables 1 and 2), now checks whether this locality is configured with the wireless of QCI=1 and holds
Carrying, without foundation, then what link terminal or network initiated radio bearer sets up process.
Alternatively, in an embodiment of the present invention, the DSCP territory in IP agreement header field and type of service is right
Should be related to as shown under table.
Table 1:
| Classification | DSCP | PS type of service | CS type of service |
| CS7 | 56 | PS signaling | CS signaling |
| CS6 | 48 | ||
| EF | 46 | CS voice | |
| AF41 | 34 | PS Conversational | |
| AF31 | 26 | PS Streaming | |
| AF21 | 18 | ||
| AF11 | 10 | PS Interactive | |
| BE | 0 | PS Background |
Wherein, CS7, CS6, EF, AF41, AF31, AF21, AF11 and BE represent class of service,
DSCP (Differentiated Services Code Point, differentiated services code points) is used for representing that Qos classifies
Standard.In table 1 DSCP=46 represent be CS type of service be CS voice.
In an embodiment of the present invention, can be by configuring the Qos parameter of each radio bearer to realize Qos
Ensure.
The Qos Class Identifier (Qos class letter) of the radio bearer in table 2:LTE system
Illustrate the Qos parameter of radio bearer: wherein QCI=1, priority is " 2 ", this radio bearer
May be used for carry voice traffic, therefore according to above-mentioned table 2, if the type of service of data stream is speech business,
Then can obtain QCI=1 according to the corresponding relation of the type of service recording in table 2 and the QCI of radio bearer
Radio bearer.Processing mode for other business is similar, no longer applies at this and states
It should be noted that for upstream data, above-described embodiment can be implemented in link terminal, for
Downlink data, the IP header field DSCP that above-described embodiment relates to is arranged can be at MME/IP tunnel server
/ SGW/PGW or implemented by an external equipment.
In relay scene, can be that multiple relay base station carries by the link terminal in embodiments of the invention
For relaying access service.Multiple relay base station that this link terminal is its second line of a couplet provides data route, for example logical
Cross the data between the functional realiey link terminal that IP route/IP exchanges or L2 layer exchanges and multiple relay base station
Route and exchange etc..Alternatively, in an embodiment of the present invention, described method 100 also includes: will receive
To the IP data envelope of multiple relay base station (also referred to as second line of a couplet equipment) install to the IP association of described link terminal
View head realizes IP tunnel function, or the IP data solution IP tunnel mailing to multiple relay base station that will receive
Data decapsulate, and according to IP route or function of exchange route to corresponding relay base station.
In relay scene, need the demand of external GPS synchronizer etc. to save relay base station, this
The bright link terminal in embodiment has the function providing synchronizing information output.Alternatively, the present invention's
In embodiment, method 100 also includes: receive and preserve downlink frame synchronization information T_frame_ue of donor base station,
And obtained the frame synchronization information of donor base station by Timing Advance Tadv when sending upstream data
T_frame_enb；The frame synchronization information of the described donor base station obtaining is adapted for the clock protocols form specified
The frame synchronization information of (such as 1588v2 clock protocols form) output are to described relay base station, in described
After base station is by the frame synchronization information of the clock protocols specified, use the biasing T_frame_offset of frame synchronization
Adjust synchronization and obtain the frame synchronization information T_frame_standard of standard.
In relay scene, need the demand of external GPS synchronizer etc. to save relay base station, this
The bright link terminal in embodiment has the function providing synchronizing information output.Alternatively, the present invention's
In embodiment, described method 100 also includes: receive and preserve the downlink frame synchronization information of donor base station
T_frame_ue, and obtained the frame synchronization of donor base station by Timing Advance Tadv when sending upstream data
Information T_frame_enb；According to donor base station configure frame timing information T_frame_offset and obtained
The frame synchronization information T_frame_enb of donor base station equipment obtain the frame synchronization information of standard
T_frame_standard；The frame synchronization information obtaining is adapted for clock protocols (the such as 1588v2 specifying
Clock protocols form) synchronous form export to relay base station, as shown in figure 11.
Wherein, the downlink frame synchronization information of the frame synchronization information T_frame_enb=donor base station of donor base station
T_frame_ue+ sends Timing Advance Tadv/2 during upstream data；
Biasing T_frame_offset+ alms giver's base of the frame synchronization information T_frame_standard=frame synchronization of standard
The frame synchronization information T_frame_enb standing, wherein the value of the biasing T_frame_offset of frame synchronization can be
0, it is also possible to be on the occasion of or negative value.
In an embodiment of the present invention, in relay scene, link terminal can realize completing Operation and Maintenance etc.
Function, specifically, link terminal OM channel is set up, with the IP address of link terminal and L2 layer
MAC Address is addressed, oam information includes the binding relationship of IP address and MAC Address；
Operation and Maintenance information also includes: the Operation and Maintenance state of this link terminal, and cpu load information, this relaying are eventually
The frequency of the work of end, PCI, ECGI (E-UTRAN Cell Global Identifier, E-UTRAN cell
Global identifier), descending CRS SINR (public reference signal signal interference ratio), MCS (Modulation and
Coding Scheme, modulation and coding strategy) etc. information, the title of its relay base station, IP address, MAC
(Media Access Control) address, the Operation and Maintenance state of its relay base station；By long-range and local
Operation and Maintenance realize this link terminal be only operated in the frequency range set of determination, frequency point sets, cell set or
TAC collection etc..
As shown in figure 12, for the LTE network in embodiments of the invention provides the device of relaying access service
Structural representation, described LTE network includes: for connecting the relaying joint of donor base station and user terminal
Point, described via node includes: relay base station and for for described relay base station provide access service relaying
Terminal, described method is applied to described link terminal side, and described device 120 includes: acquisition module 121, uses
In the type of service obtaining the data stream from relay base station receiving；Matching module 123, for according in advance
The type of service first arranging and the corresponding relation of radio bearer, mate the business with the described data stream receiving
The corresponding radio bearer of type；Sending module 125, if for exist coupling radio bearer, then by
Join the described radio bearer obtaining and transmit described data flow data stream to be sent.
In an embodiment of the present invention, described acquisition module is further used for obtaining the described data stream receiving
The value of specific field；Value according to default specific field and the corresponding relation of type of service, mate
Obtain the corresponding type of service of value of specific field with described data stream.
In an embodiment of the present invention, described matching module is further used for according to the type of service pre-setting
With the corresponding relation of the Qos parameter of radio bearer, coupling obtains and the data from relay base station receiving
The corresponding radio bearer of type of service of stream.
In an embodiment of the present invention, if described sending module is additionally operable to the radio bearer that there is not coupling, then
The type of service of the Qos parameter according to needed for described data stream sets up new radio bearer, and by foundation
New radio bearer transmits described data flow data stream to be sent.
In an embodiment of the present invention, described device also includes:
Release module, if for not having data stream to take the radio bearer having built up within the predetermined time,
The radio bearer then having built up described in release.
In an embodiment of the present invention, described device also includes:
Routing module, for installing to described link terminal by the IP data envelope of the multiple relay base station receiving
IP protocol header, realizing IP tunnel function, or the IP number mailing to multiple relay base station that will receive
Decapsulate according to the data solving IP tunnel, and route to relay accordingly according to IP route or function of exchange
Base station.
In an embodiment of the present invention, described device also includes:
Synchronization module, is used for receiving downlink frame synchronization information T_frame_ue of described donor base station, and passes through
Timing Advance Tadv when sending upstream data obtains the frame synchronization information of described donor base station
T_frame_enb；
The frame synchronization information of the described donor base station obtaining is adapted for the frame synchronization of the clock protocols form specified
Information simultaneously exports to described relay base station, by the frame synchronization letter of the clock protocols by specifying for the described relay base station
After breath, the biasing T_frame_offset of frame synchronization is used to adjust the frame synchronization information that synchronization obtains standard
T_frame_standard。
In an embodiment of the present invention, described synchronization module is additionally operable to:
Receive and preserve downlink frame synchronization information T_frame_ue of donor base station, and by sending upstream data
When Timing Advance Tadv obtain the frame synchronization information T_frame_enb of described donor base station；
The frame timing information T_frame_offset that configures according to described donor base station and executing described in having obtained
The frame synchronization information T_frame_enb of main base station unit obtains the frame synchronization information T_frame_standard of standard；
The clock protocols frame synchronization information T_frame_standard of the standard obtaining being adapted for specify same
Step form output is to described relay base station.
In an embodiment of the present invention, frame synchronization information T_frame_enb=alms giver's base of described donor base station
Downlink frame synchronization information T_frame_ue+ stood sends Timing Advance Tadv/2 during upstream data；
The biasing T_frame_offset+ of the frame synchronization information T_frame_standard=frame synchronization of described standard executes
The frame synchronization information T_frame_enb of dominant base.
In an embodiment of the present invention, described device also includes:
Remote operation module, for receiving the request message setting up OM channel；Disappear according to described request
Breath sets up the OM channel of described link terminal, to realize link terminal described in remote operation maintaining.
According to another aspect of the present invention, additionally provide a kind of link terminal, comprising: LTE as above
Network provides the device of relaying access service.
Above-described is the preferred embodiment of the present invention, it should be pointed out that for the ordinary people of the art
For Yuan, some improvements and modifications can also be made under the premise of without departing from principle of the present invention, these
Improvements and modifications are also within the scope of the present invention.
Claims (22)
1. a LTE network provides the method for relaying access service, it is characterised in that described LTE net
Network includes: for connecting the via node of donor base station and user terminal, described via node includes: in
Continuing base station and for providing the link terminal of access service for described relay base station, described method is applied to described
Link terminal side, described method includes:
Obtain the type of service of the data stream from described relay base station receiving；
According to the corresponding relation of the type of service pre-setting and radio bearer, mate and the described number receiving
Corresponding radio bearer according to the type of service of stream；
If there is the radio bearer of coupling, then transmit described data stream by mating the described radio bearer obtaining
To described donor base station.
2. the method for claim 1, it is characterised in that described acquisition receive in described
Continue the type of service of data stream of base station, specifically includes:
Obtain the value of the specific field of the described data stream receiving；
Value according to default specific field and the corresponding relation of type of service, mate and obtain and described data
The corresponding type of service of value of the specific field of stream.
3. the method for claim 1, it is characterised in that the type of service that described basis pre-sets
With the corresponding relation of radio bearer, match the radio bearer mating with the type of service of the data stream receiving,
Particularly as follows:
According to the corresponding relation of the type of service pre-setting and the service quality QoS parameter of radio bearer,
Join the corresponding radio bearer of type of service of the data stream obtaining and receiving.
4. the method for claim 1, it is characterised in that described method also includes:
If there is not the radio bearer of coupling, then the Qos parameter according to needed for described data stream sets up new nothing
Line carries, and flow to described donor base station by the new described data of radio bearer transmission set up.
5. the method for claim 1, it is characterised in that described method also includes:
If not having data stream to take the radio bearer having built up, then described in release within the predetermined time
The radio bearer being set up.
6. the method for claim 1, it is characterised in that described method also includes:
The IP data envelope of the multiple relay base station receiving is installed to the IP protocol header of described link terminal, with
Realize IP tunnel function, or the number of the IP data solution IP tunnel mailing to multiple relay base station that will receive
It according to decapsulating, and route according to IP or function of exchange routes to corresponding relay base station.
7. the method for claim 1, it is characterised in that described method also includes:
Receive downlink frame synchronization information T_frame_ue of described donor base station, and during by sending upstream data
Timing Advance Tadv obtain the frame synchronization information T_frame_enb of described donor base station；
The frame synchronization information of the described donor base station obtaining is adapted for the frame synchronization of the clock protocols form specified
Information simultaneously exports to described relay base station, is used the biasing of frame synchronization by the frame synchronization information of described relay base station
T_frame_offset adjusts the frame synchronization information T_frame_standard that synchronization obtains standard.
8. the method for claim 1, it is characterised in that described method also includes:
Receive and preserve downlink frame synchronization information T_frame_ue of described donor base station, and up by sending
Timing Advance Tadv during data obtains the frame synchronization information T_frame_enb of described donor base station；
The frame timing information T_frame_offset that configures according to described donor base station and executing described in having obtained
The frame synchronization information T_frame_enb of main base station unit obtains the frame synchronization information T_frame_standard of standard；
The clock protocols frame synchronization information T_frame_standard of the standard obtaining being adapted for specify same
Step form output is to described relay base station.
9. method as claimed in claim 7 or 8, it is characterised in that
The downlink frame synchronization information of the frame synchronization information T_frame_enb=donor base station of described donor base station
T_frame_ue+ sends Timing Advance Tadv/2 during upstream data；
The biasing T_frame_offset+ of the frame synchronization information T_frame_standard=frame synchronization of described standard executes
The frame synchronization information T_frame_enb of dominant base.
10. the method for claim 1, it is characterised in that described method also includes:
Receive the request message setting up OM channel；
Set up the OM channel of described link terminal according to described request message, so that realize can be to described
Link terminal remote operation maintaining.
11. the method for claim 1, it is characterised in that described method also includes:
Corresponding data buffer storage queue is arranged to the data stream of different service types；
According to service priority or according to service priority weighting, data stream is sent to eat dishes without rice or wine.
12. 1 kinds of LTE network provide the device of relaying access service, it is characterised in that described LTE net
Network includes: for connecting the via node of donor base station and user terminal, described via node includes: in
Continuing base station and for providing the link terminal of access service for described relay base station, described device is applied to described
Link terminal side, described device includes:
Acquisition module, for obtaining the type of service of the data stream from described relay base station receiving；
Matching module, for the corresponding relation according to the type of service that pre-sets and radio bearer, coupling with
The corresponding radio bearer of the type of service of the described data stream receiving；
Sending module, if for the radio bearer that there is coupling, then by mating the described radio bearer obtaining
Transmit described data and flow to described donor base station.
13. devices as claimed in claim 12, it is characterised in that described acquisition module is further used for obtaining
Take the value of the specific field of the described data stream receiving；Value according to default specific field and business
The corresponding relation of type, coupling obtains the corresponding type of service of value of the specific field with described data stream.
14. devices as claimed in claim 12, it is characterised in that described matching module is further used for root
According to the corresponding relation of the type of service pre-setting and the Qos parameter of radio bearer, coupling obtains and receives
The corresponding radio bearer of type of service of the data stream from described relay base station.
15. devices as claimed in claim 12, it is characterised in that if described sending module is additionally operable to not deposit
At the radio bearer of coupling, then the Qos parameter according to needed for described data stream sets up new radio bearer, and
Transmit described data by the new radio bearer set up and flow to described donor base station.
16. devices as claimed in claim 12, it is characterised in that described device also includes:
Release module, if for not having data stream to take the radio bearer having built up within the predetermined time,
The radio bearer then having built up described in release.
17. devices as claimed in claim 12, it is characterised in that described device also includes:
Routing module, for installing to described link terminal by the IP data envelope of the multiple relay base station receiving
IP protocol header, realizing IP tunnel function, or the IP number mailing to multiple relay base station that will receive
Decapsulate according to the data solving IP tunnel, and route to relay accordingly according to IP route or function of exchange
Base station.
18. devices as claimed in claim 12, it is characterised in that described device also includes:
Synchronization module, is used for receiving downlink frame synchronization information T_frame_ue of described donor base station, and passes through
Timing Advance Tadv when sending upstream data obtains the frame synchronization information of described donor base station
T_frame_enb；
The frame synchronization information of the described donor base station obtaining is adapted for the frame synchronization of the clock protocols form specified
Information simultaneously exports to described relay base station, is used the biasing of frame synchronization by the frame synchronization information of described relay base station
T_frame_offset adjusts the frame synchronization information T_frame_standard that synchronization obtains standard.
19. devices as claimed in claim 12, it is characterised in that described synchronization module is additionally operable to:
Receive and preserve downlink frame synchronization information T_frame_ue of donor base station, and by sending upstream data
When Timing Advance Tadv obtain the frame synchronization information T_frame_enb of described donor base station；
The frame timing information T_frame_offset that configures according to described donor base station and executing described in having obtained
The frame synchronization information T_frame_enb of main base station unit obtains the frame synchronization information T_frame_standard of standard；
The clock protocols frame synchronization information T_frame_standard of the standard obtaining being adapted for specify same
Step form output is to described relay base station.
20. devices as described in claim 18 or 19, it is characterised in that
The downlink frame synchronization information of the frame synchronization information T_frame_enb=donor base station of described donor base station
T_frame_ue+ sends Timing Advance Tadv/2 during upstream data；
The biasing T_frame_offset+ of the frame synchronization information T_frame_standard=frame synchronization of described standard executes
The frame synchronization information T_frame_enb of dominant base.
21. devices as claimed in claim 12, it is characterised in that described device also includes:
Remote operation module, for receiving the request message setting up OM channel；Disappear according to described request
Breath sets up the OM channel of described link terminal, so that realize can link terminal described in remote operation maintaining.
22. 1 kinds of link terminals, it is characterised in that include: as described in any one of claim 12～21
LTE network provides the device of relaying access service.
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| CN201510088661.9A CN105992273A (en) | 2015-02-26 | 2015-02-26 | Method and device for providing relay access service in LTE network, and relay terminal |
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| CN201510088661.9A CN105992273A (en) | 2015-02-26 | 2015-02-26 | Method and device for providing relay access service in LTE network, and relay terminal |
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