CN103796287B

CN103796287B - Data transmission method and system under a kind of heterogeneous network

Info

Publication number: CN103796287B
Application number: CN201210431959.1A
Authority: CN
Inventors: 王弘; 许丽香; 梁华瑞
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2012-11-02
Filing date: 2012-11-02
Publication date: 2019-09-10
Anticipated expiration: 2032-11-02
Also published as: CN110461029B; CN103796287A; CN110461029A

Abstract

This application discloses a kind of data transmission methods, it include: PDCP layers of main plot offer, rlc layer, MAC layer and the physical layer of UE, the secondary cell of UE provides rlc layer, MAC layer and physical layer, wherein: mobile management entity by the main plot of mobile management entity and UE interface between the base stations send main plot for control signaling, RRC signaling is sent to UE by main plot；The data of the UE are sent main plot by gateway, and each circuit-switched data in PDCP layers of branch, is then sent to UE via the main plot and/or secondary cell of UE by the data of the UE by main plot, and UE reconfigures data at PDCP layers, is then sent to application layer.Disclosed herein as well is the data transmission systems under a kind of heterogeneous network.Using technical solution disclosed in the present application, the collaboration between heterogeneous network can be realized, and make full use of the resource of heterogeneous network, keep entire heterogeneous network more energy saving.

Description

Data transmission method and system under a kind of heterogeneous network

Technical field

This application involves wireless communication technology field, in particular to data transmission method under a kind of heterogeneous network and it is System.

Background technique

Present mobile communication is increasingly intended to provide the multimedia service of high rate data transmission for user, as shown in Figure 1, being The system architecture diagram of System Architecture Evolution (SAE).Wherein:

User equipment (UE) 101 is the terminal device for receiving data.Evolved universal terrestrial radio access network (E- UTRAN) 102 be Radio Access Network, provides the macro base station (eNodeB/ of access radio network interface including for UE NodeB).Mobile management entity (MME) 103 is responsible for mobile context, session context and the security information of management UE.Service network It closes (SGW) 104 and the function of user plane is mainly provided, MME 103 and SGW 104 are likely to be at same physical entity.Packet count According to functions such as the responsible charging of network gateway (PGW) 105, Lawful Interceptions, same physical entity can also be in SGW 104.Plan Slightly and charging regulation function entity (PCRF) 106 provides service quality (QoS) strategy and charging criterion.General Packet Radio Service Supporting node (SGSN) 108 is that transmission in Universal Mobile Communication System (UMTS) for data provides the network node of routing and sets It is standby.Home subscriber server (HSS) 109 be UE local ownership subsystem, be responsible for protection include user equipment current location, The user informations such as address, user security information, the packet data content of user equipment of service node.

At present in LTE (Long Term Evolution) system, the maximum bandwidth that each cell is supported is 20MHz, in order to The peak rate of UE is improved, LTE-Advanced system introduces carrier aggregation technology.By carrier aggregation technology, UE can be same When communicated with the work controlled by the same eNB in the cell of different carrier frequencies, so that transmission bandwidth is up to 100MHz, from And the uplink and downlink peak rate for the UE that can be multiplied.

For working in the UE under carrier wave polymerization, the small of polymerization divides into main plot (PCell:Primary Cell) With secondary cell (SCell:Secondary Cell), the corresponding frequency in aggregation cell is called Main subcarriers (PCC:Primary respectively Component Carrier) and auxiliary subcarrier (SCC:Secondary Component Carrier).

PCell has been merely able to one, and is constantly in state of activation, and PCell can only be changed by handoff procedure, And UE can only send and receive NAS information in PCell, and PUCCH can only also be sent in PCell.

According to the ability of UE, eNB can be by RRC connection reconfiguration (RRC Reconfigurarion) process to UE configuration one A or multiple SCell.Specifically, eNB, which sends RRC connection reconfiguration, sets (RRCConnectionReconfiguration) message To UE, the configuration information of SCell is included in RRCConnectionReconfiguration message It include the index of each SCell in SCellToAddModList-r10 message, in SCellToAddModList-r10 message (SCellIndex), the physics ID of SCell, downlink carrier frequency, the specific radio resource configuration parameters of cell and UE are specific Radio resource configuration parameters etc..Wherein, the specific radio resource configuration parameters of cell include system in all SCell needed for UE The content of broadcast message, to ensure that UE is not necessarily to obtain required SCell's by reading the system broadcast message in SCell The specific wireless resource configuration of cell.

In order to reduce the power consumption of UE, SCell after configuring, is in unactivated state (Deactivated).ENB is logical It crosses the MAC Control Element activation of MAC layer or deactivates a SCell, the MAC Control Element of activation/deactivation SCell occupies one A byte, the corresponding logic channel ID of the MAC Control Element are 11011.Wherein R is reservation bit, is set as 0；C_iIt is corresponding SCellIndex is the state of the SCell of i, i.e., if C_iIt is 1, then the SCell of SCellIndex=i is state of activation；If C_i It is 0, then the SCell of SCellIndex=i is unactivated state.

After each SCell activation, UE can start a corresponding packet data inactivity timer.If UE is on the SCell It detects PDCCH or detects the PDCCH for the SCell on other serving cells, this will be restarted and deactivated Active timer.If packet data inactivity timer is overtime, UE thinks that the SCell enters unactivated state.In addition, if UE receives band The RRC reallocation message of switching command, then UE thinks that all configured SCell enter unactivated state.When SCell from activation shape State enters unactivated state, and UE will empty the corresponding all HARQ cachings of the SCell.

If a SCell is in unactivated state, or enters unactivated state from state of activation, UE should defer to following Rule:

1) PDCCH is not monitored on the SCell；

2) it is not listening to the PDCCH for the SCell；

3) detection reference signal (SRS:Sounding Reference Signal) and uplink are sent not on the SCell Synchronizing channel (UL-SCH)；

4) channel quality of the SCell is not reported to indicate that (Channel Quality the Identity)/Ma array that prelists refers to Show that (Precoding Matrix Index)/grade indicates (Rank Indicator), corresponding abbreviation: CQI/PMI/RI.

On the contrary, UE needs to defer to following rule if a SCell is active:

1) monitor PDCCH on the SCell (in self scheduling)；

2) PDCCH for being directed to the SCell is monitored；

3) SRS is sent on the SCell according to the configuration of eNB；

4) CQI/PMI/RI etc. of the SCell is reported.

In order to keep the behavior between eNB and UE consistent in time, if UE receives activation SCell's on subframe n MAC Control Element (alternatively referred to as: SCell activation instruction), then, operation of the UE under SCell state of activation should be from subframe n + 8 start to execute；If UE receives SCell deactivation command on subframe n, behaviour of the UE under SCell unactivated state The operation unrelated with CSI should execute before subframe n+8 in work, UE in the operation under SCell unactivated state with CSI phase The operation of pass should be executed in subframe n+8.

Above-mentioned carrier wave polymerization carries out between the cell under same eNB in the prior art, is not related to the carrier wave across eNB Polymerization.

Operator can on-premise network by stages, the type of base station also there are many, such as macro base station, micro-base station, the base station Pico, Home eNodeB, in addition, access mode also there are many.Material is thus formed in same geographic area, inhomogeneity may be deployed The base station of type, while the situation of service is provided for UE.

Fig. 2 is that existing heterogeneous network disposes schematic diagram.As shown in Fig. 2, thering are multiple cells to repeat to cover in the same area Lid, cell B, cell C, cell D and the cell E of LTE, completely under the covering of cell A.Cell A can be UMTS or GSM is small Area is also possible to LTE cell.Cell A provides basic wireless coverage for this region, is the cell disposed earliest, covering Range is larger for other cells.With the raising of user capacity, the user of certain areas concentrates very much and user Capacity is very big, and the quality (QoS) for the service that user capacity is needed with number of users, user has relationship.Number of users is more, QoS It is required that higher, then cell needs user capacity to be offered bigger, needs to dispose new cell equipment in this area.Such as cell B, Cell C, cell D and cell E, these cell main purposes are to provide more advanced access technology to promote user capacity, Coverage area is smaller for cell A.This region of cell A seamless coverage provides service for this region, and hot spot The coverage area of cell may be it is discontinuous, by it is this deployment be known as heterogeneous network.

Under heterogeneous network, need to propose new data transmission scheme, to realize the collaboration between heterogeneous network, and sufficiently Using the resource of heterogeneous network, keep entire heterogeneous network more energy saving.

Summary of the invention

This application provides the data transmission methods and system under a kind of heterogeneous network, to realize the association between heterogeneous network Together, and the resource of heterogeneous network is made full use of, keeps entire heterogeneous network more energy saving.

A kind of data transmission method provided by the present application, comprising:

The main plot of UE provides Packet Data Convergence Protocol (PDCP) layer, wireless spread-spectrum technology (RLC) layer, media access control (MAC) layer and physical layer are made, the secondary cell of UE provides rlc layer, MAC layer and physical layer, in which:

Mobile management entity by the main plot of mobile management entity and UE interface between the base stations by control signaling It is sent to main plot, wireless spread-spectrum technology (RRC) signaling is sent to user equipment (UE) by main plot；

The data of the UE are sent main plot by gateway, main plot by the data of the UE in PDCP layers of branch, Then each circuit-switched data is sent to UE via the main plot and/or secondary cell of UE, UE reconfigures data at PDCP layers, then It is sent to application layer.

Preferably, the base when the base station where main plot determines to increase a cell as secondary cell, where main plot It stands and sends secondary cell increase request message, the configuration comprising the LTE to be established carrying in message to the base station where the secondary cell Information, the configuration information include mark, the mark of carrying, RLC configuration information and the MAC configuration information of UE；

Base station where base station to main plot where secondary cell sends secondary cell and increases response message, includes in the message The physical layer specific configuration information of secondary cell, the physical layer specific configuration information include: upstream physical layer specific configuration information With down physical layer specific configuration information；Wherein, upstream physical layer specific configuration information includes uplink antenna configuration information, uplink Configuration information, uplink SRS configuration information and the uplink power control configuration information that USCH channel information, CQI are reported, downlink physical Layer specific configuration information includes aerial information, such as transmission mode, UE emitting antenna selecting are closed loop or open loop, also include The configuration information and DSCH specific configuration information of CSI-RS；

Main plot sends RRC reconfiguration message to UE, includes the physical layer specific configuration information and object of secondary cell in message Manage layer general configuration information.

Preferably, also include the physical layer general configuration information of the secondary cell in the secondary cell increase response message, The physical layer general configuration information includes the public configuration information and physical layer retransmission of Physical Downlink Shared Channel (PDSCH) Indicate the configuration information of channel (PHICH).

Preferably, one of base station in any two base station sends X2 interface foundation request to another base station and disappears It ceases, includes the physical layer general configuration information of serving cell in the service cell information of the message；

Another described base station returns to X2 interface to one base station and establishes response message, the serving cell letter of the message It include the physical layer general configuration information of serving cell in breath；

When the configuration information of serving cell changes, the base station of base station where the serving cell to X2 interface opposite end Send base station configuration updating information, wherein also include the serving cell in the configuration information of increased and modification serving cell Physical layer general configuration information；

The physical layer general configuration information includes the configuration information of the public configuration information and PHICH of PDSCH.

Preferably, if the data of a LTE radio bearer (E-RAB) pass through main plot and N1 secondary cell transmission, master Data are divided into the road 1+N1 by the PDCP floor of cell, are transmitted all the way by main plot, remaining road N1 is transferred to by each secondary cell UE；

If the data of an E-RAB only pass through N2 secondary cell transmission, data are divided into the road N2 by the PDCP floor of main plot, And UE is transferred to by corresponding secondary cell.

Preferably, main plot is sent to UE if the data of an E-RAB are by main plot and N1 secondary cell transmission It also include MAC configuration information, RLC configuration information and physical layer configurations information in RRC reconfiguration message；

If the data of an E-RAB only pass through N2 secondary cell transmission, and have reused the RLC configuration information of main plot With MAC configuration information, then main plot only includes physical layer configurations information into the RRC reconfiguration message that UE is sent.

Preferably, this method may further include secondary cell release process:

Secondary cell receives the report information of physical layer from UE, obtains the quality condition of the secondary cell, where secondary cell The base station or secondary cell that the quality condition of secondary cell is sent to where main plot by message are reported by secondary cell state in base station The instruction information that request main plot discharges the secondary cell is sent to main small by the base station at place by secondary cell state report message Base station where area；

Base station where base station to secondary cell where main plot sends secondary cell and discharges request message, includes to ask in message Seek the mark of the secondary cell of release；

Base station where base station to main plot where secondary cell sends secondary cell and discharges response message；

Base station where main plot sends RRC reconfiguration request message to UE, includes the mark of secondary cell in message, it is desirable that UE discharges the secondary cell；

Base station where from UE to main plot sends RRC reconfiguration response message.

Preferably, this method may further include the process of activation secondary cell:

When receiving the data packet for being sent to UE, the base station where the base station to main plot where secondary cell sends auxiliary small Activate request message in area；

Base station where base station to secondary cell where main plot sends secondary cell and activates response message, and whether notice allows The activation of the secondary cell；

Main plot sends secondary cell activation instruction to UE, the mark of the secondary cell comprising request activation in the instruction；

UE and secondary cell carry out uplink synchronous；

Base station where base station to main plot where secondary cell sends secondary cell and activates success message.

Preferably, may further include the process for deactivating secondary cell after the process of activation secondary cell:

Base station where base station to main plot where secondary cell sends secondary cell and deactivates request message, includes in message The mark of secondary cell；

Base station where base station to secondary cell where main plot sends secondary cell and deactivates response message；

Base station where main plot sends secondary cell to UE and deactivates instruction, includes the mark of secondary cell in message.

Present invention also provides a kind of secondary cell method for releasing, suitable for carrying out carrier wave polymerization to the cell different base station The case where, comprising:

Secondary cell receives the report information of physical layer from UE, obtains the quality condition of the secondary cell, where secondary cell The base station or secondary cell that the quality condition of secondary cell is sent to where main plot by message are reported by secondary cell state in base station The base station at place is sent to main plot by the instruction information that secondary cell state report message request main plot discharges the secondary cell The base station at place；

A kind of data transmission system provided by the present application, comprising: at least two base stations further include user equipment (UE), move Dynamic management entity and gateway, where at least two base station is respectively base station and secondary cell where the main plot of UE Base station, in which:

Main plot provides Packet Data Convergence Protocol (PDCP) layer, wireless spread-spectrum technology (RLC) layer, media access control (MAC) layer and physical layer, secondary cell provide rlc layer, MAC layer and physical layer；

Control signaling is sent main plot by mobile management entity, and main plot sends wireless spread-spectrum technology (RRC) signaling To UE；

Preferably, when the base station where main plot determines to increase a cell as secondary cell according to the report of UE, it is main Base station where base station to the secondary cell where cell sends secondary cell and increases request message, includes to be established in message The configuration information of LTE carrying, the configuration information include mark, the mark of carrying, RLC configuration information and the MAC configuration information of UE；

Preferably, the base station where the secondary cell, which also increases in response message in the secondary cell, carries the secondary cell Physical layer general configuration information, the physical layer general configuration information include Physical Downlink Shared Channel (PDSCH) it is public Configuration information and physical layer retransmission instruction channel (PHICH) configuration information.

Preferably, at least two base station also sends the serving cell of this base station in X2 interface establishment process to other side Physical layer general configuration information, and save the physical layer general configuration information of the serving cell of other side；

When the configuration information of serving cell changes, the base station where the serving cell is also to the base of X2 interface opposite end It stands and sends base station configuration updating information, wherein is also small comprising the service in the configuration information of increased and modification serving cell The physical layer general configuration information in area；

As seen from the above technical solution, data transmission method provided by the present application and system, by being mentioned by the main plot of UE For PDCP layers, rlc layer, MAC layer and physical layer, the secondary cell of UE provides rlc layer, MAC layer and physical layer, also, mobile management Control signaling is sent main plot by entity, and RRC signaling is sent to UE by main plot；The data of UE are sent master by gateway Each circuit-switched data in PDCP layers of branch, is then sent the data of UE by cell, main plot via the main plot of UE and/or secondary cell To UE, UE reconfigures data at PDCP layers, is then sent to application layer, realizes the collaboration between heterogeneous network, and fill Divide the resource that heterogeneous network is utilized, so that entire heterogeneous network is more energy saving.

Detailed description of the invention

The existing SAE system architecture diagram of Fig. 1；

The existing heterogeneous network of Fig. 2 disposes schematic diagram；

Across the eNB carrier wave of Fig. 3 polymerize schematic diagram；

Fig. 4 is that the transmission of the application control signaling and data transmit schematic diagram；

Fig. 5 is the schematic diagram of the embodiment of the present application one X2 interface establishment process and community configured information renewal process；

Fig. 6 is the process schematic that the embodiment of the present application two increases SCC；

Fig. 7 is the process schematic that the embodiment of the present application three discharges SCC；

Fig. 8 is the process schematic that the embodiment of the present application four activated and deactivated SCC.

Specific embodiment

It is right hereinafter, referring to the drawings and the embodiments, for the objects, technical solutions and advantages of the application are more clearly understood The application is described in further detail.

Present applicant proposes a kind of implementations of new data transmission to provide number by the collaboration of heterogeneous network for UE According to business.The main thought of the program is: carrier wave polymerization is carried out to the cell in different base station, preferably, being gathered by participation carrier wave The biggish cell of the coverage area of conjunction (such as: cell A shown in Fig. 2) be used as PCell, the coverage area being polymerize by participation carrier wave compared with Small cell (such as: it cell B~E shown in Fig. 2) is used as SCell, PCell provides mobile management function for UE, and which is determined Cell coordination provides data service for UE.The program can reduce the handoff procedure of UE, reduce the transmission power of base station and UE, and The signalling between base station is reduced, keeps entire heterogeneous network more energy saving.

Fig. 3 is across eNB carrier wave polymerization schematic diagram.According to Fig. 3, PCell and SCell respectively on different base stations, PCell Mobile management function is provided.Under framework shown in Fig. 3, need to rethink how data are transmitted.

Fig. 4 is the schematic diagram of the transmission of the application control signaling and data transmission.Assuming that PCell and SCell is in different bases On standing, and assume PCell it is corresponding be macrocell, Scell corresponding is Pico cell.It is that control signaling is transmitted on the left of Fig. 4 Schematic diagram, right side are the schematic diagrames of data transmission.According to Fig. 4, the PCell of UE realize Packet Data Convergence Protocol (PDCP) layer, The SCell of wireless spread-spectrum technology (RLC) layer, media access control (MAC) layer and physical layer, UE realizes rlc layer, MAC layer and object Manage layer.S1 control signaling is sent to the corresponding macrocell of PCell from MME, and RRC signaling is transmitted between PCell and UE, physical layer Signaling is present between PCell and UE, exists between SCell and UE.Data are sent to PCell from SGW, and wherein data are flat The PDCP agreement in face realizes that rlc layer and MAC layer are realized on PCell and SCell on PCell.

If the data of a LTE radio bearer (E-RAB) pass through PCell and N1 SCell transmission, the PDCP of PCell Data are divided into the road 1+N1 by floor, are transmitted all the way by PCell, remaining road N1 passes through N1 SCell transmission.After UE receives data, Data are reconfigured at PDCP layers, application layer is then sent to and is handled.

If the data of an E-RAB are only transmitted by SCell, data are divided into N2 (SCell by the PDCP layer of PCell Number) road, be then sent to corresponding SCell, each circuit-switched data is successively passed through rlc layer, MAC layer, object respectively by each SCell It is sent to UE after reason layer processing, after UE is received, after also correspondingly successively carrying out physical layer, MAC layer, rlc layer processing, by PDCP layers Data are reconfigured, application layer is then sent to.

It should be noted that below in an example, it is assumed that between the eNB where eNB and SCell where PCell Need to establish X2 interface, also, PCell obtains the configuration information of SCell by the X2 interface between eNB.It can also define new Interface realize, if defining new interface, accordingly replace X2 interface with the title of new interface in embodiment.

Embodiment one:

The present embodiment describes the process that the configuration information of cell is exchanged between eNB.Configuration parameter related with configuration SCell Two classes are segmented into, one kind is semi-static configuration parameter, and one kind is dynamic configuration parameter.Semi-static configuration parameter can be with It is exchanged between eNB in X2 interface establishment process.ENB by X2 interface establishment process by with configuration SCell in relation to semi-static Configuration parameter notify neighbouring eNB, later, which saves the semi-static configuration parameter received, and During configuring secondary cell later for UE, the semi-static configuration parameter is used.PCell for UE configure SCell when, If SCell and PCell, on different base stations, PCell requests the dynamic configuration parameter of SCell to SCell, such as: object Manage layer specific configuration information, later PCell can the semi-static configuration parameter (physical layer general configuration information) of SCell and Dynamic configuration parameter (physical layer specific configuration information) is sent to UE by RRC signaling.

Fig. 5 is the schematic diagram of the embodiment of the present application one X2 interface establishment process and community configured information renewal process, can be with The following steps are included:

Step 501: " X2 establishes request information to base station 2 to the transmission of base station 1.

X2 establishment process is so that two base stations is worked normally in order to exchange application layer configuration parameter between the base stations. " X2 establishes the information comprising the serving cell on base station 1 in request information, and the information of serving cell includes the physical layer of cell Identify (PCI), cell ID, cell PLMN mark, cell line frequency up and down and bandwidth, also comprising antenna port number, The configuration information of information and the physical layer access channel (PRACH) of MBSFN sub-frame.

In addition to above- mentioned information, " it also includes needed for configuration SCell that X2, which establishes the information of the serving cell in request information, Semi-static configuration parameter, it may be assumed that the physical layer general configuration information of cell, physical layer general configuration information are shared comprising downlink The public configuration information of channel (PDSCH), such as the reference signal power of PDSCH, physical layer general configuration information also include Physical layer retransmission indicates the configuration information of channel (PHICH:Physical Hybrid ARQ Indicator Channel), example Such as: the duration of PHICH is normal or spreads, the information such as resource of PHICH.

Step 502: base station 2 sends " X2 establishes response " message to base station 1.

Information comprising the serving cell on base station 2 in " X2 establishes response " message, the information of serving cell include cell PCI, cell ID, cell PLMN mark, cell line frequency up and down and bandwidth, also comprising antenna port number, MBSFN The information of frame and the configuration information of PRACH.

In addition to above- mentioned information, the information of the serving cell in " X2 establishes response " message also includes needed for configuration SCell Semi-static configuration parameter, it may be assumed that the general configuration information of physical layer, the configuration information of physical layer general include the public affairs of PDSCH Total configuration information, such as the reference signal power of PDSCH, physical layer general configuration information also include the configuration information of PHICH, Such as the duration of PHICH is normal or spreads, the information such as resource of PHICH.

By step 501 and step 502, the X2 interface establishment process between base station 1 and base station 2 is completed.

When the configuration information of the serving cell of some base station changes, which needs to notify the base of X2 interface opposite end It stands.The configuration information that the serving cell of base station 1 is assumed below is changed, and by following process, base station 1 can will be serviced The new configuration information of cell notifies base station 2.

Step 503: base station 1 sends " base station configuration updating " message to base station 2.

Include one or more combinations in following information: increased clothes on base station 1 in " base station configuration updating " message Information, the information of the information of the serving cell of modification and the serving cell of deletion for cell of being engaged in.Increased and modification service is small The information in area includes updated configuration information in cell.The configuration information of cell includes PCI, the cell ID, cell of cell PLMN mark, the line frequency up and down and bandwidth of cell, also matching comprising antenna port number, the information of MBSFN sub-frame and PRACH It sets.

The configuration information of increased and modification serving cell also includes the physical layer general configuration information of the serving cell, Physical layer general configuration information includes the public configuration information of PDSCH, such as the reference signal power of PDSCH, and physical layer is logical It also include the configuration of PHICH with configuration information, such as the duration of PHICH is normal or spreads, the resource of PHICH Etc. information.

Step 504: base station 2 sends " base station configuration updating confirmation " message to base station 1, for confirming that base station 2 has received base Stand 1 step 503 send message.

So far, community configured information renewal process terminates.

Embodiment two:

It is the process that UE establishes PCell and SCell that the present embodiment, which describes network,.Referring to Fig. 6, the process is to establish one For SCell, it may comprise steps of:

Step 601:UE establishes RRC with base station and connects.In carrier wave polymerization, the cell that UE establishes RRC connection therewith is UE PCell.

Here, the process that RRC connection is established is as the process defined at present.The process is briefly described below: UE is sent For RRC connection request message to PCell, message includes the information such as the reason of UE will establish RRC and the mark of UE；PCell sends RRC Message is established to UE, message includes the configuration information of signaling bear；UE sends RRC and establishes response message to PCell, and message includes The PLMN mark of NAS message and UE selection.

Step 602:PCell sends initial uplink transmission message to MME.

Message includes the mark of UE, and includes the NAS message that UE is sent.

Step 603:MME sends initial context and establishes request message to PCell.

Message include mark of the UE in S1 interface, the configuration information of carrying for the UE LTE established, UE wireless capability, The instruction information of encryption information and UE ability.

Step 604:PCell establishes the context of UE, is UE distributing radio resource, and send RRC reconfiguration request to UE.

The message is to have reused the message of current definition, therefore, is repeated no more herein to the content of message.

Step 605:UE sends RRC reconfiguration response message to PCell.

Step 606:PCell sends initial context and establishes response message to MME.

The message includes UE in the mark of S1 interface, the mark and the received tunnel of downlink data of the LTE carrying being successfully established Road information.

Step 607:PCell sends measuring configuration to UE, configures UE and measures.Measurement configuration information is configured with the survey of UE Measure object and reporting mechanism.

Step 608:UE sends measurement report to PCell, reports measurement result.

Assuming that PCell determines that increasing a cell as SCell is that UE sends data according to measurement report.For example, UE away from Closer from certain cell, the quality of reception that UE reports the cell in measurement report meets the requirement of predetermined threshold, and PCell can be with Determine the SCell for this cell being configured to UE, the data of UE are sent to UE by SCell, in this way, the base station where SCell Data can be sent to UE with lesser power.

When PCell determines that increasing a cell as SCell is that UE sends data, PCell will send disappearing for 609 steps Breath.

Base station where step 609:PCell sends SCell and increases request message to the base station where SCell.

Message includes the configuration information of the LTE to be established carrying, the configuration information include the mark of UE, the mark of carrying, The information such as RLC configuration information and MAC configuration information.The mark of UE unique identification UE on X2 interface；The mark of carrying is used to The different carryings of the UE between differentiation base station；The mode and the specific configuration under the mode that RLC configuration information includes RLC；MAC Configuration information includes the configuration parameter of HARQ, configuration of buffer status report etc..

Base station where step 610:SCell sends SCell and increases response message to the base station where PCell.

Message includes at least the physical layer specific configuration information as SCell, and specific includes the information of downlink and uplink.Under Row physical layer specific configuration information includes aerial information, such as transmission mode, and UE emitting antenna selecting is closed loop or open loop, is gone back Configuration information comprising CSI-RS and DSCH specific configuration information.Upstream physical layer specific configuration information is configured comprising uplink antenna Configuration information, uplink SRS configuration information and the uplink power control that information, uplink USCH channel information, CQI are reported match confidence Breath.

If PCell gets the physical layer general configuration information of SCell not over one the method for embodiment, that , the base station where SCell also needs to increase the physical layer general configuration information of carrying SCell in response message in SCell.Object Manage the public configuration information that layer general configuration information includes PDSCH, such as the reference signal power of PDSCH, physical layer general Configuration information also includes the configuration information of PHICH, such as: the duration of PHICH is normal or spreads, PHICH's The information such as resource.

The corresponding information of SCell is sent to UE by RRC reconfiguration message by step 611:PCell, and message includes 610 steps The physical layer general configuration information of the previously stored SCell of physical layer specific configuration information and PCell of rapid SCell.

If data are sent to UE simultaneously by PCell and SCell, and message is also using data transmission architecture shown in Fig. 4 Include MAC configuration information, RLC configuration information and physical layer configurations information；If data, which only pass through SCell, is sent to data, and And the RLC configuration information and MAC configuration information of PCell has been reused, then, it can only include physical layer configurations information in message.

Later, data are sent to PCell from core net, are then sent to SCell by PCell, then be sent to by SCell UE。

So far, the increased process of SCell terminates.

Embodiment three:

The process of one SCell of the present embodiment description release, as shown in fig. 7, the process may comprise steps of:

Base station where step 701:SCell sends SCell state and reports message to the base station where PCell.

Transmit data, and the signaling of transmitting physical layer and MAC layer between SCell and UE, SCell can be by the object that receives The report information of layer, such as the report information of CQI are managed, the quality condition of the SCell is obtained.The quality condition is reported by SCell To PCell, PCell can monitor the quality condition of SCell.The report of quality condition can be periodic or event Triggering, the mechanism that can be reported by PCell or OAM configuration.By taking event triggers as an example, if the quality of SCell is at one section Scheduled requirement is all unsatisfactory in time, SCell can send SCell state and report message to the base station where PCell, report The quality of SCell.Such as: when quality is poor, SCell may include specific quality condition, such as the value of CQI；Or Person reports the level condition of quality, for example, it is good, in, the grades such as bad.If quality is poor, which is equal to request should The release of SCell.Message includes mark, the mark of the SCell corresponding carrying and the quality feelings of SCell of the UE on X2 Condition.

Or SCell can request PCell to discharge the SCell according to the report information of this cell, in this case, SCell state, which is reported, may include the instruction information that request PCell discharges the SCell in message.

Base station where step 702:Pcell sends SCell release request message to the base station where SCell, request SCell discharges the carrying.The message includes the mark of SCell.

Base station where step 703:Scell sends SCell release response message to the base station where PCell, and confirmation should The release of carrying.

Base station where step 704:Pcell sends RRC reconfiguration request message to UE, it is desirable that UE discharges SCell.Message Include the corresponding mark of SCell.

Step 705:UE sends RRC reconfiguration response message to the base station where Pcell.

So far, the process of SCell release terminates.

Example IV:

The present embodiment description activation and the process for deactivating a SCell, referring to Fig. 8, which may include following step It is rapid:

Base station where step 801:SCell sends SCell activation request message to the base station where PCell.

SCell by monitor oneself whether have received the data packet for issuing UE decide whether activate SCell.SCell swashs The load identification of mark and SCell in request living comprising UE.

Base station where step 802:PCell sends SCell activation response message to the base station where SCell, notice Whether SCell allows the activation of SCell.

Step 803:PCell sends SCell activation instruction to UE, which can be sent by MAC layer or rrc layer. Activate the mark of the SCell comprising request activation in request message.

Step 804:UE carries out uplink synchronous by sending PRACH process and SCell.

If SCell activation instruction is sent by the MAC Control Element of MAC layer, UE is needed further to judge certainly Whether body and SCell are in uplink sync status, if it is not, then UE needs to be configured according to the RACH and PRACH of the SCell, Uplink synchronous is obtained by the PRACH process and SCell of competitive mode, and obtains PUCCH and SRS configuration, if so, the step It can be omitted.

Step 805:SCell sends PRACH confirmation message, configures the configuration of the PUCCH and SRS of UE.

Uplink synchronous is obtained in UE and SCell and is obtained after UE specific PUCCH and SRS configuration or UE and certain SCell The activation instruction sent by the MAC Control Element of MAC layer is received in the case where the uplink synchronous, the behavior of UE is as follows:

1) PDCCH (decoding by UE in the C-RNTI of SCell) is monitored on the SCell；

2) SRS is sent on the SCell according to the configuration of SCell eNB；

3) CQI/PMI/RI (scrambling by UE in the C-RNTI of SCell) etc. of the SCell is reported.

Base station where base station to PCell where step 806:SCell sends SCell and activates success message.

When the base station where SCell determines to deactivate the SCell, step 807 is executed.

Base station where base station to PCell where step 807:SCell sends Scell and deactivates request message, message Mark comprising the SCell.

Base station where base station to SCell where step 808:PCell sends Scell and deactivates response message.

Base station where step 809:PCell sends Scell to UE and deactivates instruction, includes the mark of the SCell in message Know.

So far, the process for activating and deactivating SCell terminates.

As seen from the above-described embodiment, the data transmission method and system under heterogeneous network provided by the present application, by by UE PCell realize PDCP layer, rlc layer, MAC layer and physical layer, SCell realization rlc layer, MAC layer and the physical layer of UE, also, S1 control signaling is sent PCell by MME, and RRC signaling is sent to UE by PCell；The data of UE are sent PCell by SGW, Each circuit-switched data in PDCP layers of branch, is then sent to UE, UE via the Pcell and/or Scell of UE by the data of UE by PCell Data are reconfigured at PDCP layers, are then sent to application layer, realize the collaboration between heterogeneous network, and take full advantage of The resource of heterogeneous network, so that entire heterogeneous network is more energy saving.

The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.

Claims

1. a kind of data transmission method characterized by comprising

The main plot of user equipment (UE) provides Packet Data Convergence Protocol PDCP layers, wireless spread-spectrum technology rlc layer, media access control The secondary cell of MAC layer and physical layer processed, UE provides rlc layer, MAC layer and physical layer, in which:

Main plot from mobile management entity and main plot the control that sends of interface mobile management entity between the base stations Wireless spread-spectrum technology RRC signaling is sent to UE by signaling, main plot；

Main plot receives the data of the UE from gateway, and the data of the UE in PDCP layers of branch, then will by main plot Each circuit-switched data is sent to UE via the main plot and/or secondary cell of UE, and each circuit-switched data is reconfigured by UE at PDCP layers, so After be sent to application layer.

2. according to the method described in claim 1, it is characterized by:

When the base station where main plot determines to increase a cell as secondary cell, base station where main plot is to the secondary cell The base station at place sends secondary cell and increases request message, and the configuration information comprising the LTE to be established carrying in message should match confidence Breath includes mark, the mark of carrying, RLC configuration information and the MAC configuration information of UE；

Base station where base station from secondary cell where main plot receives secondary cell and increases response message, includes auxiliary small in the message The physical layer specific configuration information in area, the physical layer specific configuration information include: upstream physical layer specific configuration information under Row physical layer specific configuration information；Wherein, upstream physical layer specific configuration information includes uplink antenna configuration information, uplink USCH Configuration information, uplink SRS configuration information and uplink power control configuration information, the down physical layer that channel information, CQI are reported are special Include aerial information with configuration information, also includes the configuration information and DSCH specific configuration information of CSI-RS；

Main plot sends RRC reconfiguration message to UE, includes the physical layer specific configuration information and physical layer of secondary cell in message General configuration information.

3. according to the method described in claim 2, it is characterized by:

The secondary cell increases also comprising the physical layer general configuration information of the secondary cell in response message, and the physical layer is logical It include that the public configuration information of Physical Downlink Shared Channel PDSCH and physical layer retransmission indicate channel PHICH with configuration information Configuration information.

4. according to the method described in claim 2, it is characterized in that, this method further comprises:

One of base station in any two base station sends X2 interface to another base station and establishes request message, the clothes of the message It is engaged in cell information comprising the physical layer general configuration information of serving cell；

Another described base station returns to X2 interface to one base station and establishes response message, in the service cell information of the message Physical layer general configuration information comprising serving cell；

When the configuration information of serving cell changes, the base station where the serving cell is sent to the base station of X2 interface opposite end Base station configuration updating information, wherein also include the object of the serving cell in the configuration information of increased and modification serving cell Manage layer general configuration information；

5. method according to any one of claims 1 to 4, it is characterised in that:

If the data of a LTE radio bearer E-RAB are by main plot and N1 secondary cell transmission, the PDCP layer of main plot will Data are divided into the road 1+N1, are transmitted all the way by main plot, remaining road N1 is transferred to UE by each secondary cell；

If the data of an E-RAB only pass through N2 secondary cell transmission, data are divided into the road N2 by the PDCP floor of main plot, and are led to It crosses corresponding secondary cell and is transferred to UE.

6. according to the method described in claim 5, it is characterized by:

If the data of an E-RAB are by main plot and N1 secondary cell transmission, main plot is reconfigured to the RRC that UE is sent to disappear It also include MAC configuration information, RLC configuration information and physical layer configurations information in breath；

If the data of an E-RAB only pass through the transmission of N2 secondary cell, and reused main plot RLC configuration information and MAC configuration information, then main plot only includes physical layer configurations information into the RRC reconfiguration message that UE is sent.

7. method according to any one of claims 1 to 4, which is characterized in that this method further comprises secondary cell release Process:

Base station where base station from secondary cell where main plot receives secondary cell state and reports the quality that message obtains secondary cell Situation, the quality condition of the secondary cell is secondary cell to be obtained or main plot institute from the report information that UE receives physical layer Base station from secondary cell where base station receive secondary cell state and report message, the secondary cell state is reported to be carried in message Request main plot discharges the instruction information of the secondary cell；

Base station where base station to secondary cell where main plot sends secondary cell and discharges request message, releases in message comprising request The mark for the secondary cell put；

Base station where base station from secondary cell where main plot receives secondary cell and discharges response message；

Base station where main plot sends RRC reconfiguration request message to UE, includes the mark of secondary cell in message, it is desirable that UE is released Put the secondary cell；

Base station where main plot receives RRC reconfiguration response message from UE.

8. method according to any one of claims 1 to 4, which is characterized in that this method further comprises activation secondary cell Process:

Base station where base station from secondary cell where main plot receives secondary cell and activates request message, and the secondary cell activation is asked Seeking message is that the base station where secondary cell is sent when receiving the data packet for being sent to UE；

Base station where base station to secondary cell where main plot sends secondary cell and activates response message, and whether notice allows described The activation of secondary cell；

After UE and secondary cell carry out uplink synchronous, the base station where the base station from secondary cell where main plot receives secondary cell and swashs Success message living.

9. according to the method described in claim 8, it is characterized in that, further comprising deactivating after the process of activation secondary cell The process of secondary cell living:

Base station where base station from secondary cell where main plot receives secondary cell and deactivates request message, includes auxiliary small in message The mark in area；

10. a kind of secondary cell method for releasing, the case where suitable for carrying out carrier wave polymerization to the cell different base station, feature exists In:

11. a kind of data transmission system characterized by comprising at least two base stations further include user equipment (UE), moving tube Manage entity and gateway, at least two base station is respectively the base station where the main plot of UE and the base where secondary cell It stands, in which:

Packet Data Convergence Protocol PDCP layers of main plot offer, wireless spread-spectrum technology rlc layer, media access control MAC layer and object Layer is managed, secondary cell provides rlc layer, MAC layer and physical layer；

Main plot receives the data of the UE from gateway, and the data of the UE in PDCP layers of branch, then will by main plot Each circuit-switched data is sent to UE via the main plot and/or secondary cell of UE, and the data are reconfigured at PDCP layers by UE, then sent out Give application layer.

12. system according to claim 11, it is characterised in that:

Base when the base station where main plot determines to increase a cell as secondary cell according to the report of UE, where main plot It stands and sends secondary cell increase request message, the configuration comprising the LTE to be established carrying in message to the base station where the secondary cell Information, the configuration information include mark, the mark of carrying, RLC configuration information and the MAC configuration information of UE；

13. system according to claim 12, it is characterised in that:

The secondary cell increases the physical layer general configuration information that the secondary cell is carried in response message, the physical layer general Configuration information includes the public configuration information and physical layer retransmission instruction channel PHICH of Physical Downlink Shared Channel PDSCH Configuration information.

14. system according to claim 12, it is characterised in that:

The physical layer that at least two base station sends the serving cell of this base station to other side also in X2 interface establishment process is logical With configuration information, and save the physical layer general configuration information of the serving cell of other side；

When the configuration information of serving cell changes, the base station where the serving cell is also sent out to the base station of X2 interface opposite end Send base station configuration updating information, wherein also include the serving cell in the configuration information of increased and modification serving cell Physical layer general configuration information；

15. a kind of data transmission method characterized by comprising

The main plot of user equipment (UE) provides Packet Data Convergence Protocol PDCP layers, wireless spread-spectrum technology rlc layer, media access control The secondary cell of MAC layer and physical layer processed, UE provides rlc layer, MAC layer and physical layer；

UE receives wireless spread-spectrum technology RRC signaling from main plot, and the RRC signaling is that main plot is received from mobile management entity It is sent after control signaling；

UE receives each circuit-switched data from main plot and/or secondary cell, and sends after each circuit-switched data is reconfigured at PDCP layers To application layer, wherein each circuit-switched data is that main plot is received after the data of UE from gateway in PDCP layers of branch, and is passed through It is sent to UE's by the main plot and/or secondary cell of UE.

16. according to the method for claim 15, it is characterised in that:

When the base station where main plot determines to increase a cell as secondary cell, secondary cell increases request message by main plot The base station at place is sent to the base station where the secondary cell, the configuration information comprising the LTE to be established carrying in message, the configuration Information includes mark, the mark of carrying, RLC configuration information and the MAC configuration information of UE；

Secondary cell increases response message as the base station where the base station where secondary cell is sent to main plot, comprising auxiliary in the message The physical layer specific configuration information of cell, the physical layer specific configuration information include: upstream physical layer specific configuration information and Down physical layer specific configuration information；Wherein, upstream physical layer specific configuration information includes uplink antenna configuration information, uplink Configuration information, uplink SRS configuration information and the uplink power control configuration information that USCH channel information, CQI are reported, downlink physical Layer specific configuration information includes aerial information, also includes the configuration information and DSCH specific configuration information of CSI-RS；

UE receives RRC reconfiguration message from main plot, includes the physical layer specific configuration information and physical layer of secondary cell in message General configuration information.

17. according to the method for claim 16, it is characterised in that:

18. according to the method for claim 16, which is characterized in that this method further comprises:

X2 interface is established request message and is sent from one of base station in any two base station to another base station, the message It include the physical layer general configuration information of serving cell in service cell information；

X2 interface is established response message and is returned from another described base station to one base station, the service cell information of the message In include serving cell physical layer general configuration information；

When the configuration information of serving cell changes, base station configuration updating information is from the base station where the serving cell to X2 The base station of interface opposite end is sent, wherein also includes the serving cell in the configuration information of increased and modification serving cell Physical layer general configuration information；

19. according to the method for claim 16, it is characterised in that:

If the data of a LTE radio bearer E-RAB are by main plot and N1 secondary cell transmission, data are by main plot PDCP floor is divided into the road 1+N1, and UE is received all the way by main plot, and receives remaining road N1 by each secondary cell；

If the data of an E-RAB only pass through N2 secondary cell transmission, data are divided into the road N2 by the PDCP floor of main plot, and UE is logical It crosses corresponding secondary cell and receives the N2 circuit-switched data.

20. according to the method for claim 19, it is characterised in that:

If the data of an E-RAB are by main plot and N1 secondary cell transmission, UE is reconfigured from the received RRC in main plot to disappear It also include MAC configuration information, RLC configuration information and physical layer configurations information in breath；

If the data of an E-RAB only pass through the transmission of N2 secondary cell, and reused main plot RLC configuration information and MAC configuration information, then UE only includes physical layer configurations information from the received RRC reconfiguration message in main plot.

21. 5 to 20 described in any item methods according to claim 1, which is characterized in that this method further include:

UE sends the report information of physical layer to secondary cell, wherein carrying the quality condition of secondary cell；The quality of the secondary cell Situation reports the base station where message is sent to main plot by secondary cell state as the base station where secondary cell, alternatively, auxiliary small Zone state reports message as the base station where the base station where secondary cell is sent to main plot, and the secondary cell state reports message The middle instruction information for carrying request main plot and discharging the secondary cell；

Secondary cell discharges request message as the base station where the base station where main plot is sent to secondary cell, and request is included in message The mark of the secondary cell of release；

Secondary cell discharges response message as the base station where the base station where secondary cell is sent to main plot；

Base station where UE from main plot receives RRC reconfiguration request message, includes the mark of secondary cell in message, it is desirable that UE is released Put the secondary cell；

22. 5 to 20 described in any item methods according to claim 1, which is characterized in that this method further include:

UE receives secondary cell activation instruction from main plot, the mark of the secondary cell comprising request activation in the instruction；

UE and secondary cell carry out uplink synchronous.

23. according to the method for claim 22, which is characterized in that this method further include:

Base station where UE from main plot receives secondary cell and deactivates instruction, includes the mark of secondary cell in message.

24. a kind of data transmission method characterized by comprising

Secondary cell receives the data of UE from main plot, and sends the data to the UE, wherein the data are main plot The data after the data of UE after PDCP layers of branch are received from gateway.

25. according to the method for claim 23, it is characterised in that:

When the base station where main plot determines to increase a cell as secondary cell, base station where secondary cell is from main plot institute Base station receive secondary cell and increase request message, the configuration information comprising the LTE to be established carrying in message, the configuration information Mark, RLC configuration information and the MAC configuration information of mark, carrying comprising UE；

Base station where base station to main plot where secondary cell sends secondary cell and increases response message, includes auxiliary small in the message The physical layer specific configuration information in area, the physical layer specific configuration information include: upstream physical layer specific configuration information under Row physical layer specific configuration information；Wherein, upstream physical layer specific configuration information includes uplink antenna configuration information, uplink USCH Configuration information, uplink SRS configuration information and uplink power control configuration information, the down physical layer that channel information, CQI are reported are special Include aerial information with configuration information, also includes the configuration information and DSCH specific configuration information of CSI-RS；

RRC reconfiguration message is sent to UE by main plot, includes the physical layer specific configuration information and physics of secondary cell in message Layer general configuration information.

26. according to the method for claim 25, it is characterised in that:

27. according to the method for claim 24, which is characterized in that this method further comprises:

28. according to the described in any item methods of claim 24 to 27, it is characterised in that:

If the data of a LTE radio bearer E-RAB are by main plot and N1 secondary cell transmission, data are by main plot PDCP floor is divided into the road 1+N1, is transmitted all the way by main plot, remaining road N1 is transferred to UE by each secondary cell；

If the data of an E-RAB only pass through N2 secondary cell transmission, data are divided into the road N2 by the PDCP floor of main plot, auxiliary small Corresponding data are transferred to UE by area.

29. according to the described in any item methods of claim 24 to 27, it is characterised in that:

30. according to the described in any item methods of claim 24 to 27, which is characterized in that this method further comprises that secondary cell is released Let off journey:

Base station where secondary cell receives the report information of physical layer from UE, obtains the quality condition of the secondary cell, secondary cell The quality condition of secondary cell is sent to the base station where main plot by secondary cell state report message by the base station at place, or Message is reported by secondary cell state and sends the instruction information for requesting main plot to discharge the secondary cell in base station where secondary cell To the base station where main plot；

Base station where base station from main plot where secondary cell receives secondary cell and discharges request message, releases in message comprising request The mark for the secondary cell put；

RRC reconfiguration request message is sent to UE as the base station where main plot, includes the mark of secondary cell in message, it is desirable that UE Discharge the secondary cell；

RRC reconfiguration response message is as the base station where UE is sent to main plot.

31. according to the described in any item methods of claim 24 to 27, which is characterized in that this method further comprises that activation is auxiliary small The process in area:

When receiving the data packet for being sent to UE, the base station where the base station to main plot where secondary cell sends secondary cell and swashs Request message living；

Base station where base station from main plot where secondary cell receives secondary cell and activates response message, knows whether described in permission The activation of secondary cell；

Secondary cell activation instruction is sent to UE by main plot, the mark of the secondary cell comprising request activation in the instruction；

Secondary cell and UE carry out uplink synchronous；

32. according to the method for claim 31, which is characterized in that further comprise after the process of activation secondary cell Activate the process of secondary cell:

Base station where base station to main plot where secondary cell sends secondary cell and deactivates request message, includes auxiliary small in message The mark in area；

Base station where base station from main plot where secondary cell receives secondary cell and deactivates response message；

Secondary cell deactivates instruction and is sent to UE as the base station where main plot, includes the mark of secondary cell in message.

33. a kind of data transmission method characterized by comprising

Mobile management entity by the main plot of mobile management entity and user equipment (UE) interface between the base stations it is small to master Area sends control signaling, and after the control signaling is sent by mobile management entity, wireless spread-spectrum technology RRC signaling is by the master Cell is sent to the UE；

The data of the UE are sent to the main plot by gateway, and by the main plot in Packet Data Convergence Protocol PDCP layers of branch, then each circuit-switched data is sent to UE via the main plot and/or secondary cell of UE, and each circuit-switched data is existed by UE PDCP layers reconfigure after be sent to application layer；

Wherein, the main plot of the UE provides Packet Data Convergence Protocol PDCP layers, wireless spread-spectrum technology rlc layer, media access MAC layer and physical layer are controlled, the secondary cell of UE provides rlc layer, MAC layer and physical layer.

34. a kind of data transmission method characterized by comprising

The data of user equipment (UE) are sent to the main plot of the UE by gateway, and the data of the UE are existed by the main plot PDCP layers of branch of Packet Data Convergence Protocol, then each circuit-switched data is sent to UE via the main plot and/or secondary cell of UE, described Each circuit-switched data is sent to application layer after being reconfigured by UE at PDCP layers；

Wherein, the main plot of the UE provides Packet Data Convergence Protocol PDCP layers, wireless spread-spectrum technology rlc layer, media access MAC layer and physical layer are controlled, the secondary cell of the UE provides rlc layer, MAC layer and physical layer.

35. a kind of secondary cell method for releasing, it is characterised in that:

Base station where secondary cell receives the report information of physical layer from UE, obtains the quality condition of secondary cell, secondary cell place Base station base station that the quality condition of secondary cell is sent to where main plot by message or auxiliary small is reported by secondary cell state Message is reported by secondary cell state, the instruction information for requesting main plot to discharge the secondary cell is sent to master in base station where area Base station where cell；

Base station where base station to main plot where secondary cell sends secondary cell and discharges response message.

36. a kind of secondary cell method for releasing, it is characterised in that:

Base station where user equipment (UE) from main plot receives wireless spread-spectrum technology RRC reconfiguration request message, includes in message The mark of secondary cell, it is desirable that UE discharges the secondary cell；

Base station where from UE to main plot sends RRC reconfiguration response message；

The RRC reconfiguration request message is that the base station where the base station to secondary cell where main plot sends secondary cell release and asks Message is asked to send later, the mark of the secondary cell discharged in the secondary cell release request message comprising request；

Secondary cell release request message is that the base station where the base station from secondary cell where main plot receives secondary cell state It reports message and obtains and send after the quality condition of secondary cell, the quality condition of the secondary cell, which is secondary cell, receives object from UE The report information of reason layer obtains or secondary cell release request message is base station where main plot where secondary cell Base station receive secondary cell state and report and send after message, the secondary cell state, which is reported, carries request main plot in message Discharge the instruction information of the secondary cell.