CN102843723B - A kind of method of joint transmission, system and anchor point network element - Google Patents
A kind of method of joint transmission, system and anchor point network element Download PDFInfo
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- CN102843723B CN102843723B CN201110171449.0A CN201110171449A CN102843723B CN 102843723 B CN102843723 B CN 102843723B CN 201110171449 A CN201110171449 A CN 201110171449A CN 102843723 B CN102843723 B CN 102843723B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Abstract
The invention discloses a kind of method of joint transmission, anchor point network element sends joint transmission to non-anchor network element and asked；The anchor point network element is received after the joint transmission response that the non-anchor network element is sent, and itself is being the user equipment distributing radio resource in systems, wherein, the Radio Resource distributed in the joint transmission response comprising the non-anchor network element；The anchor point network element sends carrying to the user equipment by RRC signaling and sets up or reconfigure signaling, the carrying is set up or reconfigured signaling and carries the Radio Resource that itself and the non-anchor are respectively the user equipment distribution, so that the Radio Resource that signaling carrying was set up or reconfigured to the user equipment according to the carrying carries out joint transmission；The present invention also discloses a kind of system of joint transmission and anchor point network element.By the solution of the present invention, the cross-system joint transmission of customer equipment data can be realized, user equipment is solved while accessing the RRC connection maintenance issues of two systems.
Description
Technical field
The present invention relates to mobile communication technology, more particularly to a kind of method of joint transmission, system and anchor point network element.
Background technology
The framework of existing third generation partner program (3GPP) access system, as shown in figure 1, including wireless access wet end
Divide and core network part, wherein wireless access mesh portions include GERAN (GSM EDGE Radio Access Network), led to
Drill with GSM (UMTS, Universal Mobile Telecommunications System) access network and for a long time
Enter (LTE, Long Term Evolution) access network.GERAN and UMTS access network services branch with core network element GPRS
Point (SGSN, Serving GPRS Support Node) of serving as a diplomatic envoy is connected, LTE access network and core network element mobile management
Entity (MME, Mobility Management Entity) is connected.GERAN refers to base station sub-system (BSS, Base Station
Subsystem), BSS includes base station controller (BSC, Base Station Controller) and base station (BS, Base
Station)；UMTS access network elements include radio network controller (RNC, Radio Network Controller) and base
Stand (NodeB)；LTE access network elements are evolution base station (eNB, Evolved NodeB).Set in order to ensure the user of connected state
Standby (UE, User Equipment) can freely be moved between different access systems, and S3 is had between SGSN and MME and is connect
Mouthful, the interface can realize switching of the user equipment between different access systems.
In order to realize higher transmission rate, 3GPP proposes carrier aggregation (Carrier Aggregation) technology
Scheme, is simultaneously user equipment service using multiple carrier waves.Existing carrier aggregation scheme is mainly using more in triangular web
Individual carrier wave is provided in service, such as UMTS using the carrier wave of 2 or more than 2 while being kept with user equipment for user equipment simultaneously
Communication, or utilize the carrier wave of 2 or more than 2 to keep communicating with user equipment simultaneously in LTE.But in actual network
In, due to the limitation of carrier frequency quantity, some mobile operator do not have enough frequencies while disposing multiple UMTS and LTE systems
System, mobile operator can adjust UMTS and LTE carrier frequency number according to the number of user equipment of access network.Due to UMTS system and
LTE system meeting long-term co-existence, when the capacity (limitation of carrier frequency) of individual system is not enough to provide high transmission rate, people think
The scheme using different system combined transmission has been arrived, the carrier aggregation of cross-system has been referred to as, user equipment is used simultaneously
Two kinds of access technologies, setting up two wireless links is used to transmit data, and this can not only obtain higher handling capacity, and can be with
Reach the effect of preferable load balancing.Before the scheme without use joint transmission, the load balancing between system can only lead to
Cross switching, the method redirected to implement, if using the scheme of joint transmission, network side can be according to the negative of different access systems
Carry, dynamically adjust the transmission rate of each user equipment on different links, can preferably realize load balancing.
When user equipment uses cross-system joint transmission scheme, user equipment possesses while supporting the hard of two kinds of access technologies
The ability of part and software.Under joint transmission mode, user equipment possesses two different radio links, and how network side configures this
Whether two wireless links, this two wireless links independent, user equipment whether need to maintain two wireless heterogeneous networks (RRC,
Radio Resource Control) connection the problems such as, at present without specific solution.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of method of joint transmission, system and anchor point network element, energy
The cross-system joint transmission of customer equipment data is enough realized, user equipment is solved while RRC connections are tieed up when accessing two systems
Shield problem.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of method for joint transmission that the present invention is provided, this method includes：
Anchor point network element sends joint transmission request to non-anchor network element；
The anchor point network element is received after the joint transmission response that the non-anchor network element is sent, and is in systems at itself
The user equipment distributing radio resource, wherein, in the joint transmission response comprising the non-anchor network element where itself
It is the Radio Resource of the user equipment distribution in system；
The anchor point network element sends carrying foundation to the user equipment by RRC signaling or reconfigures signaling, described to hold
Carry and set up or reconfigure signaling and carry the Radio Resource that itself and the non-anchor are respectively the user equipment distribution, so that
The Radio Resource that signaling carrying was set up or reconfigured to the user equipment according to the carrying carries out joint transmission.
In such scheme, the anchor point network element is the access network elements for setting up the system that RRC is connected with user equipment；Institute
It is while covering the access network elements of the different system of the user equipment to state non-anchor network element；
It is described to set up the system and while the different system for covering the user equipment is respectively that RRC is connected with user equipment
UMTS system and LTE system, or respectively LTE system and UMTS system；
The access network elements of the UMTS system are RNC or base station；The access network elements of the LTE system are evolution base
Stand.
In such scheme, the joint transmission request includes customer equipment data transmission parameter information and participates in joint transmission
Target Cell Identifier information.
In such scheme, the Radio Resource at least includes one below：Radio Network Temporary Identifier (RNTI, Radio
Network Temporary Identity), scrambler, random access parameter, physical layer configuration parameter.
In such scheme, the existing RRC signaling of signal multiplex or the carrying to newly increase are set up or reconfigured in the carrying
The RRC signaling of the Radio Resource distributed in each system for user equipment.
In such scheme, the non-anchor network element itself is being the Radio Resource of the user equipment distribution in systems
Comprising random access resource, user equipment initiates Stochastic accessing according to the random access resource and obtains uplink synchronous.
In such scheme, this method further comprises：Anchor point network element is after joint transmission response is received, with non-anchor net
Member sets up the data transmission channel on user equipment.
In such scheme, the data transmission channel, for descending, receives joint transmission sound including up and/or descending
The access network elements packet distribution answered gives the access network elements for receiving joint transmission request, and user equipment will receive joint transmission
The packet that the access network elements of response are sent respectively with the access network elements for receiving joint transmission request is merged；For
Up, packet delivery is given the access network elements for receiving joint transmission response and receives connecing for joint transmission request by user equipment
Network element, packet combining is carried out by the access network elements for receiving joint transmission response.
In such scheme, this method further comprises：
When setting up system that RRC is connected with user equipment and being UMTS system, it is small that user equipment accesses UMTS system
Area position area coding (LAC, Location Area Code), Routing Area Code (RAC, Routing Area Code) and entirely
Office's cell ID (CGI, Cell Global Identifier) is Non-Access Stratum (NAS) mobile message of the user equipment；
When setting up system that RRC is connected with user equipment and being LTE system, the LTE system that user equipment is accessed is small
Tracking area identification (TAC, Tracking Area Code), the CGI in area are the NAS layer mobile messages of the user equipment.
A kind of system for joint transmission that the present invention is provided, the system includes：User equipment, anchor point network element, non-anchor net
Member；Wherein,
The anchor point network element, for sending joint transmission request to non-anchor network element；After joint transmission response is received,
Itself it is user equipment distributing radio resource in systems, and by RRC signaling to user equipment transmission carrying foundation or again
The wireless money that signaling carries itself and non-anchor network element is user equipment distribution is set up or reconfigured in configuration signal, the carrying
Source；
The non-anchor network element, itself is being the user equipment in systems for receiving after joint transmission request
Distributing radio resource, and return to the joint transmission response for the Radio Resource for carrying distribution；
The user equipment, for receiving carrying foundation or reconfiguring after signaling, according to the Radio Resource cross-system of acquisition
Transmit data.
In such scheme, the joint transmission request includes customer equipment data transmission parameter information and participates in joint transmission
Target Cell Identifier information；
The Radio Resource at least includes one below：RNTI, scrambler, random access parameter, physical layer configuration parameter.
Anchor point network element in a kind of joint transmission system that the present invention is provided, the anchor point network element includes：Joint transmission is asked
Module and joint transmission set up module；Wherein,
The joint transmission request module, for when it is determined that user equipment needs to carry out joint transmission, to non-anchor net
Member sends joint transmission request；
The joint transmission sets up module, for after the joint transmission response that non-anchor network element is sent is received, at itself
It is user equipment distributing radio resource in systems, and carrying foundation is sent to user equipment by RRC signaling or reconfigured
Signaling；It itself is being the Radio Resource of user equipment distribution in systems that the joint transmission response, which carries non-anchor network element,
The Radio Resource that signaling carries anchor point network element and non-anchor network element is user equipment distribution is set up or reconfigured in the carrying.
The invention provides a kind of method of joint transmission, system and anchor point network element, anchor point network element is sent out to non-anchor network element
Joint transmission is sent to ask；The anchor point network element is received after the joint transmission response that the non-anchor network element is sent, where itself
It is the user equipment distributing radio resource in system, wherein, exist in the joint transmission response comprising the non-anchor network element
Itself it is the Radio Resource of the user equipment distribution in systems；The anchor point network element is by RRC signaling to the user
Equipment sends carrying and sets up or reconfigure signaling, and the carrying is set up or reconfigured signaling and carries itself and the non-anchor point
Not Wei user equipment distribution Radio Resource taken so that the user equipment is set up according to the carrying or reconfigures signaling
The Radio Resource of band carries out joint transmission；It so, it is possible to realize the cross-system joint transmission of customer equipment data, solve user
Equipment accesses the RRC connection maintenance issues of two systems simultaneously, and need not set up Article 2 RRC connections.Using the present invention's
Scheme, the load contributed between the balanced different system of network side, is favorably improved the speed of the data transfer of user equipment.
Brief description of the drawings
Fig. 1 is the configuration diagram of existing third generation partner program access system；
Fig. 2 realizes a kind of schematic flow sheet of the method for joint transmission for the present invention；
Fig. 3 be the embodiment of the present invention one in realize joint transmission method schematic flow sheet；
Fig. 4 be the embodiment of the present invention two in realize joint transmission method schematic flow sheet；
Fig. 5 be the embodiment of the present invention three in realize joint transmission method schematic flow sheet.
Embodiment
The present invention basic thought be：Anchor point network element sends joint transmission request to non-anchor network element；The anchor point network element
Receive after the joint transmission response that the non-anchor network element is sent, itself be that the user equipment distribution is wireless in systems
Resource, wherein, comprising the non-anchor network element itself it is being the user equipment in systems in joint transmission response
The Radio Resource of distribution；The anchor point network element sends carrying to the user equipment by RRC signaling and sets up or reconfigure signaling,
The carrying is set up or reconfigured signaling and carries the wireless money that itself and the non-anchor are respectively the user equipment distribution
Source, so that the Radio Resource that signaling carrying was set up or reconfigured to the user equipment according to the carrying carries out joint transmission.
Below by drawings and the specific embodiments, the present invention is described in further detail.
The present invention realizes a kind of method of joint transmission, as shown in Fig. 2 this method includes following steps：
Step 101：Anchor point network element sends to non-anchor network element and combined when it is determined that user equipment needs to carry out joint transmission
Transmission request；
The joint transmission request includes customer equipment data transmission parameter information and participates in the Target cell of joint transmission
Identification information, the customer equipment data transmission parameter information such as Data Radio Bearer (DRB, Data Radio Bearer)
QoS parameter etc..
Step 102：The non-anchor network element for receiving joint transmission request itself is being the user equipment point in systems
With Radio Resource, and return to the joint transmission response for the Radio Resource for carrying distribution；
Specifically, customer equipment data is transmitted during the non-anchor network element for receiving joint transmission request is asked according to joint transmission
Parameter information and the Target Cell Identifier information for participating in joint transmission, itself are being the wireless money of user equipment distribution in systems
Source, meets customer equipment data transmission requirement as far as possible, carries what is distributed for user equipment in the joint transmission response of return
Radio Resource, the Radio Resource at least includes one below：RNTI, scrambler, random access parameter, physical layer configuration parameter etc..
Step 103：The anchor point network element for receiving joint transmission response itself is being the user equipment distribution in systems
Radio Resource, and carrying foundation is sent to user equipment by RRC signaling or signaling is reconfigured, the carrying is set up or reconfigured
The Radio Resource that signaling carries itself and non-anchor network element is user equipment distribution；
In this step, signaling is set up or reconfigured in the carrying can be multiplexed existing RRC signaling, and such as radio bearer is set up
(Radio Bearer Setup) or radio bearer reconfigure (Radio Bearer Reconfiguration) or RRC connections
(RRC Connection Reconfiguration) is reconfigured, RRC signaling can also be newly increased, the RRC signaling is carried every
The Radio Resource distributed in individual system for user equipment.
Step 104：User equipment receives carrying and sets up or reconfigure after signaling, is passed according to the Radio Resource cross-system of acquisition
Transmission of data；
Set up or reconfigure after signaling specifically, user equipment receives carrying, divide using wherein carrying for user equipment
The Radio Resource matched somebody with somebody, data are transmitted by the system where anchor point network element and non-anchor network element.
In this step, the non-anchor network element is that the Radio Resource that user equipment is distributed can include random access resource,
The random access resource is distributed by non-anchor network element, and user equipment is sent to via anchor point network element, and user equipment is random according to this
Access-in resource initiate Stochastic accessing obtain uplink synchronous, then user equipment can where non-anchor network element system cover it is small
The transmission of up-downgoing data is realized in area.
Further, it is contemplated that operator is when being laid out the network of joint transmission, in order to reduce user equipment in not homology
Stationary problem in system, above-mentioned anchor point network element and the system deployment where non-anchor network element are into synchronous regime, such user equipment
Obtain it is synchronous with system after, automatically obtain it is synchronous with another system, now in step 104, the non-anchor
Random access resource can not just be included in the Radio Resource that network element distributes for user equipment.
Further, in such scheme, anchor point network element is set up with non-anchor network element and closed after joint transmission response is received
In the data transmission channel of user equipment, the data transmission channel is including up and/or descending, for descending, anchor point network element
Packet distribution gives non-anchor network element, and user equipment is closed the packet that anchor point network element and non-anchor network element are sent respectively
And；For up, packet delivery to anchor point network element and non-anchor network element, data inclusion is carried out by anchor point network element by user equipment
And.
In the present embodiment, the anchor point network element is the access network elements for setting up the system that RRC is connected with user equipment；Institute
It is while covering the access network elements of the different system of the user equipment to state non-anchor network element；Wherein, the different system is described
System beyond system where anchor point network element；
Further, in such scheme, when system that RRC is connected is set up with user equipment and is UMTS system, user
LAC, RAC and CGI that equipment accesses UMTS system cell are Non-Access Stratum (NAS) mobile messages of the user equipment；
When setting up system that RRC is connected with user equipment and being LTE system, the LTE system that user equipment is accessed is small
TAC, the CGI in area are the NAS floor mobile messages of the user equipment.
In order to realize the above method, the present invention also provides a kind of system of joint transmission, and the system includes：User equipment,
Anchor point network element, non-anchor network element；Wherein,
The anchor point network element is to set up the access network elements of the system that RRC is connected with user equipment, for it is determined that with
When family equipment needs to carry out joint transmission, joint transmission request is sent to non-anchor network element；After joint transmission response is received,
Itself it is user equipment distributing radio resource in systems, and by RRC signaling to user equipment transmission carrying foundation or again
The wireless money that signaling carries itself and non-anchor network element is user equipment distribution is set up or reconfigured in configuration signal, the carrying
Source；
The non-anchor network element is the access network for the system for covering the user equipment simultaneously with system where anchor point network element
Network element, itself is being the user equipment distributing radio resource in systems, and return for receiving after joint transmission request
Carry the joint transmission response of the Radio Resource of distribution；
The user equipment, for receiving carrying foundation or reconfiguring after signaling, according to the Radio Resource cross-system of acquisition
Transmit data；
The joint transmission request includes customer equipment data transmission parameter information and participates in the Target cell of joint transmission
Identification information；
The Radio Resource at least includes one below：RNTI, scrambler, random access parameter, physical layer configuration parameter；
The non-anchor network element be user equipment distribute Radio Resource can include random access resource, user equipment according to
According to the random access resource initiate Stochastic accessing obtain uplink synchronous, then user equipment can where non-anchor network element system
The transmission of up-downgoing data is realized in the cell of covering；
Further, the anchor point network element includes：Joint transmission request module and joint transmission set up module；Wherein,
The joint transmission request module, for when it is determined that user equipment needs to carry out joint transmission, to non-anchor net
Member sends joint transmission request；
The joint transmission sets up module, for after the joint transmission response that non-anchor network element is sent is received, at itself
It is user equipment distributing radio resource in systems, and carrying foundation is sent to user equipment by RRC signaling or reconfigured
Signaling；It itself is being the Radio Resource of user equipment distribution in systems that the joint transmission response, which carries non-anchor network element,
The Radio Resource that signaling carries anchor point network element and non-anchor network element is user equipment distribution is set up or reconfigured in the carrying.
Based on said system, the present invention also provides the anchor point network element in a kind of joint transmission system, and the anchor point network element includes：
Joint transmission request module and joint transmission set up module；Wherein,
The joint transmission request module, for when it is determined that user equipment needs to carry out joint transmission, to non-anchor net
Member sends joint transmission request；
The joint transmission sets up module, for after the joint transmission response that non-anchor network element is sent is received, at itself
It is user equipment distributing radio resource in systems, and carrying foundation is sent to user equipment by RRC signaling or reconfigured
Signaling；It itself is being the Radio Resource of user equipment distribution in systems that the joint transmission response, which carries non-anchor network element,
The Radio Resource that signaling carries anchor point network element and non-anchor network element is user equipment distribution is set up or reconfigured in the carrying.
Describe the implementation process and principle of the method for the present invention in detail with reference to specific embodiment.
Embodiment one
In the present embodiment, the resident jurisdiction district 1 of base station 1 in the umts system of user equipment (UE) 1, in idle condition,
Base station 1 is administered by RNC.The cell 2 for having identical covering with cell 1 is administered by evolution base station 2, and evolution base station 2 belongs to LTE systems
System.In the umts system, Iub interface is had between RNC and base station 1.Because RNC may implement to join with the evolution base station 2 in LTE
Transmission is closed, therefore new interface is established between RNC and evolution base station 2, for transmitting data and control signaling.RNC and evolution
Interface between base station 2 is set up can be by operation and maintenance (Operation ＆ Maintenance) server implementation.This implementation
Example realizes a kind of method of joint transmission, as shown in figure 3, this method includes following steps：
Step 201, UE1 initiates Stochastic accessing in cell 1, and RRC connection request is sent to RNC；
Step 202, RNC receives the connection request of UE1 transmissions, and returning to RRC connections to UE1 sets up (RRC Connection
Setup) signaling, the RRC connections, which are set up, includes Signaling Radio Bearer (SRB, Signaling Radio Bearer) in signaling
Configuration parameter；
Step 203, the configuration parameter of SRB in signaling is set up in UE1 applications RRC connections, and sending RRC connections to RNC has set up
Into (RRC Connection Setup Complete) signaling；
The ability information for completing that UE1 is also included in signaling is set up in the RRC connections, i.e. UE1 supports the ability of joint transmission
Information.
So far, UE1 establishes RRC with RNC and is connected.
Step 204, UE1 sends initial direct-sending (Initial Direct Transfer) signaling to RNC, wherein comprising non-
Access Layer signaling, i.e. service request；RNC is received after initial direct-sending signaling, and service request is sent into core net；
Step 205, core net is received after service request, after user equipment authority identification success, and returning to wireless access to RNC holds
Assignment request (Radio Access Bearer Assignment Request) is carried, wherein including the clothes for the DRB1 for needing to set up
Mass parameter of being engaged in etc..
In this step, the carrying of the RAB assignment request, the DRB1 that correspondence is eated dishes without rice or wine, in the present embodiment,
The message transmission rate that DRB1 needs is very high, i.e., the data rate included in QoS parameter is very high.
Step 206, RNC detects the Radio Resource of cell 1 and can not meet DRB1 message transmission rate demand, RNC choosings
Cell 2 is selected as the Target cell for participating in joint transmission, RNC is sent by the interface between evolution base station 2 to evolution base station 2
Joint transmission is asked, and DRB1 quality of service information and the cell identity information of cell 2 are contained in the request；
In this step, Radio Resource that RNC can have been used according to cell 1, DRB1 need the Radio Resource taken, draw
Cell 1 can not meet the conclusion of DRB1 demands.
The RNC can send measurement configuration to UE1 allows UE1 reports to meet the adjacent area of signal conditioning, is reported according to UE1
Measurement report, selects cell 2 as the Target cell of joint transmission；
The present embodiment is not limited for representing to need to set up the signaling title of cross-system joint transmission.
Step 207, evolution base station 2 is received after joint transmission request, receives the request, distribution UE1 is wireless in cell 2
Resource, the Radio Resource that distribution is returned to RNC is responded by joint transmission, and wherein at least includes one below：In cell 2
RNTI, scrambler, random access parameter, physical layer configuration parameter etc.；
Step 208, RNC is received after the joint transmission response of the return of evolution base station 2, wireless moneys of the distribution UE1 in cell 1
Source, sends carrying to UE1 by RRC signaling and sets up signaling, it is the wireless of UE1 distribution that the carrying, which is set up in signaling and includes RNC,
Resource and evolution base station 2 are the Radio Resource that UE1 is distributed；
Signaling is set up in the carrying can be multiplexed existing RRC signaling, and such as radio bearer is set up or radio bearer is matched somebody with somebody again
Put or RRC connections are reconfigured, RRC signaling can also be newly increased, the RRC signaling is carried in each joint transmission system as use
The Radio Resource of family equipment distribution.
Step 209, UE1 receives carrying and set up after signaling, is the Radio Resource and evolution that UE1 is distributed using RNC therein
Base station 2 is the Radio Resource that UE1 is distributed, while transmitting data by cell 1 and cell 2；
Herein it should be noted that in step 209, UE1, which is received in the Radio Resource of cell 2, can include Stochastic accessing
Resource, the random access resource is distributed by base station 2, is sent to UE1 via RNC, UE1 is according to the random access resource in cell 2
Initiate Stochastic accessing and obtain uplink synchronous, then UE1 can realize the transmission of up-downgoing data in cell 2.
In view of operator when being laid out the network of joint transmission, in order to reduce synchronization of the user equipment in different system
Problem, UMTS system and LTE system are deployed to synchronous regime, i.e. UE1 after acquirement is synchronous with UMTS's, automatically obtain and LTE
The synchronization of system, such UE1 need not implement Stochastic accessing in cell 2 and obtain uplink synchronous, and now cell 2 is what UE1 was distributed
Radio Resource can not include random access resource.
It should be noted simultaneously that, after RNC receives the joint transmission response of the return of evolution base station 2, RNC and evolution base station
Need to set up data transmission channel on UE1 between 2, the data transmission channel include it is up and/or descending, for descending,
RNC to evolution base station 2 distribute the UE1 part downlink data packet, so as to evolution base station 2 have when being communicated with UE1 it is enough under
Row data transfer, here, RNC need the function of newly-increased data distribution, select partial data bag and are sent to evolution base station 2, pass through
Evolution base station 2 is transmitted to UE1.UE1 is merged the packet that RNC and evolution base station 2 send over respectively is received, and UE1 can
With the function for the merger and reorganization for being multiplexed existing wireless chain control layer (Radio Link Control), the conjunction of packet is realized
And, restructuring, such application layer still can receive complete, orderly packet., will for up, UE1 function of data distribution
Partial data bag is transmitted in UMTS system by RNC, and remainder packet is transmitted in LTE system by evolution base station 2, evolution
Base station 2, which is received, relays to RNC after packet, packet combining, restructuring are carried out by RNC.So UE1 is transmitted by two systems
Upstream data also can completely passes to RNC, core net is then sent to by RNC.
In the present embodiment, the mode of UE1 joint transmissions despite the use of, but UE1 only keeps RRC be connected with RNC, i.e.,
There is a RRC connection, second RRC is not set up with evolution base station 2 is connected.RNC is anchor point network element, and evolution base station 2 is non-anchor
Point network element.The cell that UE1 is accessed includes cell 1 and cell 2, but cell 2 is intended only as UE1 resource cell, or is money
Source carrier wave or for secondary cell.LAC, RAC and the CGI broadcasted in the system message of cell 1 be UE1 Non-Access Stratum (NAS,
Non-Access Stratum) mobile message, the positional information of oneself that UE1 is provided to core net be cell 1 LAC, RAC and
CGI.After UE1 is by the way of the joint transmission, the system message of cell 2 may change, but UE1 need not be small by monitoring
The beep-page message in area 2 knows the system message alteration of cell 2, when the system message of cell 2 changes, and evolution base station 2 is to RNC
The system message after change is sent, RNC sends the system message after the renewal of cell 2 by RRC signaling to UE1.
Embodiment two
In the present embodiment, user equipment (UE) 2 is in connection status, UE2 access evolution base stations by LTE system access network
3 jurisdiction districts 3, i.e. evolution base station 3 establish RRC connections for UE2.Base station 4 in UMTS system is administered by RNC, base station 4
Jurisdiction district 4 and the covering area overlapping of cell 3.
The application scenarios of the present embodiment are：UE2 has been set up a DRB, is represented below with DRB1.If UE2 needs new
Build a DRB2, and evolution base station 3 is when meeting UE2 new DRB2 QoS parameter demand without enough resources, due to
Evolution base station 3 has learned that UE2 possesses the ability for supporting joint transmission in UE2 access networks, therefore evolution base station 3 wishes to make
UE2 is caused to result in more Radio Resources with the mode of joint transmission.The measurement report that evolution base station 3 is reported by UE2,
Know that UE2 measures the signal quality of cell 4 more than predetermined thresholding, evolution base station 3 needs to configure joint transmission for UE2.This reality
The method for applying a joint transmission, as shown in figure 4, including following steps：
Step 301, evolution base station 3 sends joint transmission to RNC by the interface between RNC and asked, and is passed in the joint
The cell identity information of quality of service information comprising DRB2 and cell 4 in defeated request；
Step 302, RNC is received after joint transmission request, receives the request, and distribution UE2 leads in the Radio Resource of cell 4
Cross joint transmission and respond the Radio Resource that distribution is returned to evolution base station 3, wherein at least includes one below：In cell 4 or RNC
In RNTI, scrambler, random access parameter, physical layer configuration parameter etc.；
In this step, the distribution UE2, in the Radio Resource of cell 4, is usually according to DRB2 QoS parameter point
With UE2 in the Radio Resource of cell 4, the DRB2 data transportation requirements of user equipment are met as far as possible.
Step 303, evolution base station 3 is received after the joint transmission response of RNC returns, the wireless moneys of distribution UE2 in cell 3
Source, sends carrying to UE2 by RRC signaling and sets up signaling, it is that UE2 is configured that the carrying, which is set up in signaling and includes evolution base station 3,
Radio Resource and RNC be UE2 configure Radio Resource；
Step 304, UE2 receives carrying and set up after signaling, is the Radio Resource that UE2 is configured using evolution base station 3 therein
And RNC is the Radio Resource that UE2 is configured, while transmitting data by cell 3 and cell 4；
So far, network side is that UE2 is configured with joint transmission mode for DRB2, and UE2 can utilize cell 3 and small simultaneously
The Radio Resource in area 4 transmits DRB2 data, includes the data of uplink and downlink, and the DRB1 that UE2 is set up still is defined in cell 3
In.Although the Radio Resource of cell 3 can not guarantee DRB2 QoS parameter demand, by the part for sharing cell 4
Radio Resource, can meet DRB2 QoS parameter demand, it is to avoid be not introduced into before joint transmission, and evolution base station 3 reflects
In the problem of foundation that can only refuse DRB2 after DRB2 demand is asked can not be met, it is ensured that the satisfaction of user.
In the present embodiment, after evolution base station 3 receives the joint transmission response that RNC is sent, further comprise：Evolution base station
The data transmission channel on UE2, including up and/or descending data transmission channel are set up between 3 and RNC.For descending,
Evolution base station 3 sends the part downlink data packet of the UE2 to RNC, so that RNC has enough downlink datas when being communicated with UE2
Transmission, here, evolution base station 3 need the function of newly-increased data distribution, select partial data bag and are sent to RNC, by RNC to
UE2 is transmitted.UE2 merges the packet that the RNC received and evolution base station 3 are sended over respectively, and UE2 can be multiplexed existing
Wireless chain control layer merger and reorganization function, realize merging, the restructuring of packet, such application layer still can receive
Completely, orderly packet.For up, merging, the restructuring of the progress packet of evolution base station 3, then sent to core net
Whole, orderly packet.
In the present embodiment, the mode of UE2 joint transmissions despite the use of, but UE2 only keeps RRC to connect with evolution base station 3
Connect, second RRC is not set up with RNC and is connected.Evolution base station 3 is anchor point network element, and RNC is non-anchor network element.What UE2 was accessed
Cell includes cell 3 and cell 4, but cell 4 is intended only as UE2 resource cell.Broadcasted in the system message of cell 3
TAC, CGI are UE2 NAS layer mobile messages, and the positional information of oneself that UE2 is provided to core net is the TAC and CGI of cell 3.
In LTE system, cell frequency, physical-layer cell identifier that the security configuration parameter of user equipment Access Layer is accessed with it
(PCI, Physical Cell Identifier) is related, in the present embodiment, and the security configuration parameter that user equipment is used is only
It is related to cell 3, i.e., the security configuration parameter of user equipment Access Layer is determined by the frequency and PCI of cell 3, and do not have with cell 4
There is relation.
Further, when UE2 uses the technology of carrier aggregation in LTE system, i.e. UE2 is accessed in LTE simultaneously
Multiple cells when, wherein, for UE2 provide security configuration parameter needed for frequency and PCI cell referred to as main plot
(Primary Cell), the evolution base station 3 of LTE system can distribute evolution base station 3 administrative when configuring joint transmission for UE2
The Radio Resource of at least two cell is simultaneously UE2 services, and the vacant resource in multiple cells can be made full use of to be provided for UE2
The demand of high-speed, reaches the effect for improving power system capacity.
Embodiment three
In the present embodiment, in UMTS system, if user equipment (UE) 1 uses HSPA technologies, i.e., up is HSUPA (High
Speed Uplink Packet Access), descending is HSDPA (High Speed Downlink Packet Access), right
The scheduling of user equipment (UE) 1 is not responsible for by RNC, and is responsible for by base station, such as spreading code that UE1 is used, the time slot for using spreading code
Deng by base station control.In the present embodiment, the base station of LTE system will use joint transmission technology to UE1, make UE1 while using
OFDM (OFDM, Orthogonal Frequency in UMTS system in HSPA technologies and LTE system
Division Multiplexing) build between base station 2 in evolution base station 1 and UMTS system in technology, therefore LTE system
Vertical to have interface, the interface is used to transmit control signaling and data.Interface between evolution base station 1 and base station 2 can by operation with
Server implementation is safeguarded, general, operation and maintenance server is deposited according to evolution base station 1 with the jurisdiction district coverage of base station 2
Direct interface is set up for them overlapping the characteristics of.
The application scenarios of the present embodiment are：UE1 in the jurisdiction district of evolution base station 1 has built up RRC connections, and establishes
Data Radio Bearer DRB1, yet with the increase of user equipment in the jurisdiction district of evolution base station 1, its load is also stepped up,
Evolution base station 1 detects that jurisdiction district resource is nervous, it is desirable to joint transmission is realized with base station 2 for UE1, to there is enough resources
DRB1 QoS parameter demand is met, here, evolution base station 1 is according to UE1 measurement report and UE1 ability information, certainly
The fixed and jurisdiction district of base station 2 carries out joint transmission.The method that the present embodiment realizes joint transmission, as shown in figure 5, this method includes
Following steps：
Step 401：Evolution base station 1 sends joint transmission to base station 2 by direct interface and asked, the joint transmission request
In comprising DRB1 QoS parameter and the jurisdiction district of base station 2 cell ID；
Step 402：Base station 2 is received after joint transmission request, receives the request, nothings of the distribution UE1 in the jurisdiction district of base station 2
Line resource, by joint transmission respond to evolution base station 1 return distribution Radio Resource, the Radio Resource at least include it is following it
One：RNTI, scrambler, random access parameter, physical layer configuration parameter etc.；
Step 403：Evolution base station 1 is received after joint transmission response, nothings of the distribution UE1 in the jurisdiction district of evolution base station 1
Line resource, sends carrying to UE1 by RRC signaling and reconfigures signaling, and the carrying, which is reconfigured in signaling comprising evolution base station 1, is
The Radio Resource of UE1 configurations and base station 2 are the Radio Resource that UE1 is configured；
The RRC signaling can be that RRC connections reconfigure signaling.
Step 404：UE1 receives carrying and reconfigured after signaling, is the Radio Resource and base that UE1 is configured using evolution base station 1
Stand 2 for UE1 configure Radio Resources, while carrying out data transmission with evolution base station 1 and base station 2.
In the present embodiment, the mode of UE1 joint transmissions despite the use of, but UE1 only keeps RRC to connect with evolution base station 1
Connect, second RRC is not set up with base station 2 is connected.Evolution base station 1 is anchor point network element, and base station 2 is non-anchor network element.UE1 is
It make use of the Radio Resource of the jurisdiction district of base station 2.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (13)
1. a kind of method of joint transmission, it is characterised in that this method includes：
Anchor point network element sends joint transmission request to non-anchor network element；
The anchor point network element is received after the joint transmission response that the non-anchor network element is sent, and itself is being user in systems
Equipment distributing radio resource, wherein, it is in systems at itself comprising the non-anchor network element in the joint transmission response
The Radio Resource of the user equipment distribution；
The anchor point network element sends carrying to the user equipment by wireless heterogeneous networks (RRC) signaling and sets up or reconfigure letter
Order, it is respectively the wireless of the user equipment distribution that the carrying, which is set up or reconfigured signaling and carries itself and the non-anchor,
Resource, so that the Radio Resource that signaling carrying was set up or reconfigured to the user equipment according to the carrying carries out joint transmission.
2. according to the method described in claim 1, it is characterised in that the anchor point network element connects to set up RRC with user equipment
The access network elements of the system connect；The non-anchor network element is while covers the access network net of the different system of the user equipment
Member；
It is described to set up the system and while the different system for covering the user equipment is respectively general that RRC is connected with user equipment
GSM (UMTS) and Long Term Evolution (LTE) system, or respectively LTE system and UMTS system；
The access network elements of the UMTS system are radio network controller (RNC) or base station；The access network net of the LTE system
Member is evolution base station.
3. method according to claim 2, it is characterised in that the joint transmission request includes customer equipment data transmission
Parameter information and the Target Cell Identifier information for participating in joint transmission.
4. method according to claim 2, it is characterised in that the Radio Resource at least includes one below：Wireless network
Network temporary mark (RNTI), scrambler, random access parameter, physical layer configuration parameter.
5. method according to claim 2, it is characterised in that the carrying is set up or to reconfigure signal multiplex existing
RRC signaling or for the carrying that newly increases be in each system user equipment distribution Radio Resource RRC signaling.
6. method according to claim 2, it is characterised in that the non-anchor network element itself is being described in systems
The Radio Resource of user equipment distribution includes random access resource, and user equipment initiates to connect at random according to the random access resource
Enter to obtain uplink synchronous.
7. method according to claim 2, it is characterised in that this method further comprises：Anchor point network element is receiving joint
After transmission response, the data transmission channel on user equipment is set up with non-anchor network element.
8. method according to claim 7, it is characterised in that the data transmission channel is right including up and/or descending
In descending, the access network elements packet distribution of joint transmission response is received to the access network elements for receiving joint transmission request,
User equipment sends the access network elements for receiving the access network elements of joint transmission response with receiving joint transmission request respectively
The packet come is merged；For up, user equipment gives packet delivery on the access network net for receiving joint transmission response
Member and the access network elements for receiving joint transmission request, data inclusion is carried out by the access network elements for receiving joint transmission response
And.
9. method according to claim 2, it is characterised in that this method further comprises：
When setting up system that RRC is connected with user equipment and being UMTS system, user equipment accesses UMTS system cell
Position area coding (LAC), Routing Area Code (RAC) and global cell identity (CGI) are the Non-Access Stratums of the user equipment
(NAS) mobile message；
When system that RRC is connected is set up with user equipment and is LTE system, the LTE system cell that user equipment is accessed
Tracking area identification (TAC), CGI are the NAS layer mobile messages of the user equipment.
10. a kind of system of joint transmission, it is characterised in that the system includes：User equipment, anchor point network element, non-anchor network element；
Wherein,
The anchor point network element, for sending joint transmission request to non-anchor network element；After joint transmission response is received, at itself
It is user equipment distributing radio resource in systems, and carrying foundation is sent to user equipment by RRC signaling or reconfigured
The Radio Resource that signaling carries itself and non-anchor network element is user equipment distribution is set up or reconfigured in signaling, the carrying；
The non-anchor network element, itself is being the user equipment distribution in systems for receiving after joint transmission request
Radio Resource, and return to the joint transmission response for the Radio Resource for carrying distribution；
The user equipment, for receiving carrying foundation or reconfiguring after signaling, is transmitted according to the Radio Resource cross-system of acquisition
Data.
11. system according to claim 10, it is characterised in that the joint transmission request includes customer equipment data biography
Defeated parameter information and the Target Cell Identifier information for participating in joint transmission；
The Radio Resource at least includes one below：RNTI, scrambler, random access parameter, physical layer configuration parameter.
12. system according to claim 10, it is characterised in that the anchor point network element includes：Joint transmission request module
Module is set up with joint transmission；Wherein,
The joint transmission request module, for when it is determined that user equipment needs to carry out joint transmission, being sent out to non-anchor network element
Joint transmission is sent to ask；
The joint transmission sets up module, for after the joint transmission response that non-anchor network element is sent is received, where itself
It is user equipment distributing radio resource in system, and carrying foundation is sent to user equipment by RRC signaling or signaling is reconfigured；
It itself is being the Radio Resource of user equipment distribution in systems that the joint transmission response, which carries non-anchor network element, described to hold
Carry the Radio Resource for setting up or reconfiguring that signaling carries anchor point network element and non-anchor network element is user equipment distribution.
13. the anchor point network element in a kind of joint transmission system, it is characterised in that the anchor point network element includes：Joint transmission asks modulus
Block and joint transmission set up module；Wherein,
The joint transmission request module, for when it is determined that user equipment needs to carry out joint transmission, being sent out to non-anchor network element
Joint transmission is sent to ask；
The joint transmission sets up module, for after the joint transmission response that non-anchor network element is sent is received, where itself
It is user equipment distributing radio resource in system, and carrying foundation is sent to user equipment by RRC signaling or signaling is reconfigured；
It itself is being the Radio Resource of user equipment distribution in systems that the joint transmission response, which carries non-anchor network element, described to hold
Carry the Radio Resource for setting up or reconfiguring that signaling carries anchor point network element and non-anchor network element is user equipment distribution.
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| CN201110171449.0A CN102843723B (en) | 2011-06-23 | 2011-06-23 | A kind of method of joint transmission, system and anchor point network element |
| PCT/CN2012/072757 WO2012174903A1 (en) | 2011-06-23 | 2012-03-21 | Method, system and anchor network element for joint transmission |
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| CN201110171449.0A CN102843723B (en) | 2011-06-23 | 2011-06-23 | A kind of method of joint transmission, system and anchor point network element |
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| CN102932923B (en) * | 2011-08-11 | 2018-05-11 | 中兴通讯股份有限公司 | 3G network and 4G network carriers polymerization and system |
| WO2015070374A1 (en) * | 2013-11-12 | 2015-05-21 | 华为技术有限公司 | Carrier aggregation method and base station |
| EP3335472B1 (en) * | 2015-08-14 | 2019-05-15 | Telefonaktiebolaget LM Ericsson (PUBL) | System information broadcasting in a wireless network |
| WO2018018621A1 (en) * | 2016-07-29 | 2018-02-01 | 广东欧珀移动通信有限公司 | Method and device for establishing secondary connection |
| EP3745789A4 (en) * | 2018-02-12 | 2021-01-27 | Huawei Technologies Co., Ltd. | Communication method, communication device, and computer program storage medium |
| CN116887441A (en) * | 2022-03-28 | 2023-10-13 | 展讯通信（上海）有限公司 | Random access method, equipment and storage medium |
| CN117479334A (en) * | 2022-07-18 | 2024-01-30 | 展讯半导体(南京)有限公司 | Random access method and device and computer readable storage medium |
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| CN102013952A (en) * | 2009-09-07 | 2011-04-13 | 夏普株式会社 | Method for acquiring channel state information, base station and user equipment |
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| KR20110020708A (en) * | 2009-08-24 | 2011-03-03 | 삼성전자주식회사 | Method and apparatus for generating and multiplexing of control channel for inter-cell interference coordication in ofdm system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101932111A (en) * | 2009-06-26 | 2010-12-29 | 中兴通讯股份有限公司 | Method and system for resource scheduling between enhanced base stations |
| CN102013952A (en) * | 2009-09-07 | 2011-04-13 | 夏普株式会社 | Method for acquiring channel state information, base station and user equipment |
| CN101778114A (en) * | 2010-01-26 | 2010-07-14 | 浙江广播电视集团 | Method for multi-channel parallel transmission of streaming media services on basis of load balance |
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