CN109246835A

CN109246835A - A kind of communication means and device

Info

Publication number: CN109246835A
Application number: CN201710314140.XA
Authority: CN
Inventors: 权威; 张戬; 柴丽
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-05-05
Filing date: 2017-05-05
Publication date: 2019-01-18
Anticipated expiration: 2037-05-05
Also published as: CN109246835B; WO2018201921A1

Abstract

The embodiment of the invention provides a kind of communication means and devices, are related to the communications field.The described method includes: the radio resource control RRC connection request message that distributed unit receiving terminal apparatus is sent；The distributed unit sends RRC connection to the terminal device and establishes message；The distributed unit receives the RRC connection setup complete message that the terminal device is sent；The distributed unit sends first message to centralized unit, and the first message is used to establish to the radio resource control RRC connection of the centralized unit notice terminal device and complete；Wherein, the distributed unit and the centralized unit are the equipment positioned at wireless access network, and the centralization unit is communicated by the distributed unit with the terminal device.

Description

A kind of communication means and device

Technical field

The present invention relates to the communications field more particularly to a kind of communication means and device.

Background technique

In Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS) system In system, wireless access network (Radio Access Network, RAN) side frame structure is centralized.But due to wireless network control The protocol stack of device (Radio Network Controller, RNC) processed and node B (Node B) are from medium access control What (Media Access control, MAC) layer divided, be again non-ideal backhaul (Backhaul) between RNC and Node B, Therefore the processing for needing flow control etc. more complicated between RNC and Node B, it is difficult to ensure that scheduling performance.

Therefore, in long term evolution (Long Term Evolution, LTE) system, RAN side frame structure becomes flat.This The benefit that sample is done is exactly to improve the performance of this cell scheduling, but due to becoming distributed structure/architecture, in multi-plot joint Processing, multi-cell coordination and pooling of resources control etc. become highly difficult again.

Therefore, in the evolution of LTE version (Release) 15 and 5G radio open (New Radio, NR), centralization The separation of unit/distributed unit (Split) framework is suggested, and communication mechanism based on this framework need further refinement and It is perfect.

Summary of the invention

The embodiment of the present invention provides a kind of communication means and device.

In a first aspect, the embodiment of the present invention provides a kind of communication means, comprising: distributed unit receiving terminal apparatus hair The radio resource control RRC connection request message sent；The distributed unit sends RRC connection foundation to the terminal device and disappears Breath；The distributed unit receives the RRC connection setup complete message that the terminal device is sent；The distributed unit is to collection Chinese style unit sends first message, and the first message is used to build to the RRC connection of the centralized unit notice terminal device It is vertical to complete；The distributed unit and the centralized unit are the equipment positioned at wireless access network, and the centralization unit is logical The distributed unit is crossed to be communicated with the terminal device.Wherein, the parameter for including in first message is centralized unit It is subsequent to continue to establish the necessary parameter that business provides for terminal device, at the same the configuration of these parameters be also centralized unit into The coordination of row resource centralized control provides foundation and basis.

In one possible implementation, the distributed unit sends RRC connection foundation to the terminal device and disappears Breath includes: that the distributed unit is disappeared by Signaling Radio Bearer SRB0 to the terminal device transmission RRC connection foundation Breath, wherein the RRC connection establish message the processing that the distributed unit is passed through include: rrc layer, rlc layer, MAC layer and The processing of PHY layer；Or the processing including rrc layer, MAC layer and PHY layer.

Optionally, distribution described in the RRC connection establishment process in the first message comprising the terminal device is single Member is following at least one parameter of the terminal equipment configuration: PHY layer parameter, MAC layer parameter, rlc layer parameter, packet data Convergence protocol PDCP layer parameter.

In one possible implementation, the distributed unit to the centralized unit send first message it Afterwards, the distributed unit receives the second message that the centralized unit is sent, and the second message includes the distribution The configuration parameter for the one or more Data Radio Bearer DRB that unit is established and the configuration parameter of SRB2；Wherein, the SRB2 is passed Defeated message is in the processing that the processing that the distributed unit is passed through includes: rlc layer, MAC layer and PHY layer；The DRB transmission Data are in the processing that the processing that the distributed unit is passed through includes: rlc layer, MAC layer and PHY layer.

Optionally, the second message includes the configuration parameter of SRB1；Wherein, the message of the SRB1 transmission is at described point The processing that cloth unit passes through includes: rrc layer, PDCP layers, the processing of rlc layer, MAC layer and PHY layer.

In one possible implementation, receive that the centralized unit sends in the distributed unit described the After two message, the distributed unit sends third message to the terminal device, and the third message is described for notifying The safeguard protection of terminal device enabling SRB1, SRB2 and DRB；The distributed unit receives the configuration that the terminal device is sent Complete message.

In one possible implementation, the distributed unit includes: to terminal device transmission third message The distributed unit sends the third message to the terminal device by SRB1 or SRB2.

Optionally, the third message is that the distributed unit generates and sends according to the second message.

In one possible implementation, the configuration that the terminal device is sent is received in the distributed unit to complete After message, the distributed unit sends the 4th message to centralized unit, and the 4th message is used for the centralization Unit informs that the terminal device parameter configuration is completed.

It optionally, is following at least the one of the terminal equipment configuration comprising the distributed unit in the 4th message Kind parameter: PHY layer parameter, MAC layer parameter, rlc layer parameter, PDCP layer parameter.

Second aspect, the embodiment of the present invention provide a kind of communication means, comprising: centralized unit receives distributed unit The first message of transmission, the first message are used for the radio resource control RRC to the centralized unit notice terminal device Connection, which is established, to be completed；The centralization unit sends initial message to equipment of the core network, and the initial message is for notifying core Net is terminal equipment configuration parameter；The centralization unit receives the context that the equipment of the core network is sent and establishes message.Its In, distributed unit is completed to the wireless parameter of terminal device with postponing the centralized unit of notice, so that centralized unit can be from Global angle, situations such as more preferably grasping the load of each cell, interfere, so as to preferably carry out wireless resource management (Radio Resource Management, RRM) control.

In one possible implementation, the context that the equipment of the core network is sent is received in the centralized unit It establishes after message, the centralization unit sends second message to the distributed unit, and the second message includes described The configuration parameter for the one or more Data Radio Bearer DRB that distributed unit is established and the configuration ginseng of Signaling Radio Bearer SRB2 Number；Wherein, the message that the SRB2 is transmitted is in the processing that the processing that the centralized unit passes through includes: rrc layer, PDCP layers； The data of the DRB transmission pass through PDCP layers of processing in the centralized unit.

Optionally, the second message includes the configuration parameter of SRB1.

In one possible implementation, the centralized unit to the distributed unit send second message it Afterwards, the centralized unit receives the 4th message that the distributed unit is sent, and the 4th message is used for the concentration Formula unit informs that the terminal device parameter configuration is completed.

The third aspect, the embodiment of the present invention provide a kind of communication means, comprising: terminal device is sent to distributed unit Radio resource control RRC connection request message；The terminal device receives the RRC connection foundation that the distributed unit is sent and disappears Breath；The terminal device sends RRC connection setup complete message to the distributed unit；The terminal device receives described point The third message that cloth unit is sent, the third message for notify the terminal device enable Signaling Radio Bearer SRB1, The safeguard protection of SRB2 and Data Radio Bearer DRB；The terminal device sends configuration to the distributed unit and completes message. Wherein, RRC connection establishment process only carries out between terminal device and distributed unit, reduces RRC connection set-up delay.

In one possible implementation, the terminal device sends RRC connection request message packet to distributed unit Include: the terminal device sends the RRC connection request message to the distributed unit by SRB0, wherein the SRB0 The message of transmission is in the processing that the processing that the terminal device passes through includes: rrc layer, rlc layer, MAC layer and PHY layer；Or packet It includes: the processing of rrc layer, MAC layer and PHY layer.

Optionally, it includes: the end that message is established in the RRC connection that the terminal device receives that the distributed unit is sent End equipment receives the RRC connection that the distributed unit is sent by SRB0 and establishes message.

In one possible implementation, the terminal device sends RRC connection to the distributed unit and has established Including: the terminal device at message sends the RRC connection setup complete message to the distributed unit by SRB1, In, the message of SRB1 transmission the processing that the terminal device passes through include: rrc layer, PDCP layers, rlc layer, MAC layer and The processing of PHY layer.

In one possible implementation, the terminal device receives the third message package that the distributed unit is sent Include: the terminal device receives the third message that the distributed unit is sent by SRB1 or SRB2, wherein described The message of SRB2 transmission the processing that the terminal device passes through include: rrc layer, PDCP layers, rlc layer, at MAC layer and PHY layer Reason.

In one possible implementation, the third message is that the distributed unit generates simultaneously according to second message It sends, the second message includes the configuration parameter of one or more DRB and matching for SRB2 that the distributed unit is established Set parameter；Wherein, the data of the DRB transmission include: PDCP layers, rlc layer, MAC layer in the processing that the terminal device passes through With the processing of PHY layer.

Fourth aspect, the embodiment of the present invention provide a kind of communication means, comprising: terminal device receives distributed unit hair The switching command message sent includes following instruction information in the switching command message: not executing reconstruction；Signaling is executed wirelessly to hold SRB1 is carried to rebuild, execute at least one that SRB2 rebuilds, executes at least one Data Radio Bearer DRB reconstruction；The terminal is set It is standby that corresponding operation is executed according to the switching command message；The terminal device sends switching to the distributed unit and completes Message；Wherein, the distributed unit is the equipment positioned at wireless access network.Wherein, by reducing the processing delay rebuild, into One step reduces the time delay that switching executes, meanwhile, reduce due to rebuilding bring rlc layer packet loss, also after the switching of reduction not Necessary data packet retransmission saves resource.

Optionally, following at least one parameter configuration: the parameter of SRB1 is included in the switching command message；SRB2 Parameter；The parameter of at least one DRB；The parameter of medium access control MAC layer.

5th aspect, the embodiment of the present invention provide a kind of communication means, comprising: distributed unit determination executes distribution Switching in unit；The distributed unit sends switching command message to terminal device, in the switching command message comprising with Lower instruction information: reconstruction is not executed；Signaling Radio Bearer SRB1 is executed to rebuild, execute SRB2 reconstruction, execute at least one data At least one that radio bearer DRB is rebuild；The distributed unit receives the handoff completion message that the terminal device is sent；Institute It states distributed unit and sends indication message to centralized unit；Wherein, the distributed unit and the centralized unit For positioned at the equipment of wireless access network, the centralization unit is led to by the distributed unit and the terminal device Letter.

Optionally, the indication message include the distributed unit be the terminal equipment configuration it is following at least A kind of parameter: PHY layer parameter, rlc layer parameter, MAC layer parameter, Packet Data Convergence Protocol PDCP layer parameter.

In one possible implementation, following at least one parameter configuration letter is included in the switching command message Breath: the parameter of SRB1；The parameter of SRB2；The parameter of at least one DRB；The parameter of medium access control MAC layer.

6th aspect, the embodiment of the present application provide a kind of distributed unit, execute times of first aspect or first aspect A kind of method anticipated in possible implementation.Specifically, the distributed unit includes for executing first aspect or first The unit of method in the possible implementation of any one of aspect.

7th aspect, the embodiment of the present application provides a kind of centralized unit, for executing second aspect or second aspect Any one possible implementation in method.Specifically, the centralized unit include for execute second aspect or The unit of method in the possible implementation of any one of second aspect.

Eighth aspect, the embodiment of the present application provide a kind of terminal device, the method for executing the third aspect.Specifically Ground, the terminal device include the list for executing the method in any one implementation of the third aspect or the third aspect Member.

9th aspect, the embodiment of the present application provide a kind of terminal device, the method for executing fourth aspect.Specifically Ground, the terminal device include the list for executing the method in any one implementation of fourth aspect or fourth aspect Member.

Tenth aspect, the embodiment of the present application provide a kind of distributed unit, the method for executing the 5th aspect.Specifically Ground, the distributed unit include the list for executing the method in any one implementation of the 5th aspect or the 5th aspect Member.

Tenth on the one hand, and this application provides a kind of computer storage mediums, stores computer program (instruction) thereon, when When the program (instruction) is run on computers, so that the computer executes method described in any of the above-described aspect.

12nd aspect, this application provides a kind of chip system, which includes processor, for supporting distribution Formula unit, centralized unit and terminal device realize function involved in above-mentioned aspect, for example, on for example generating or handle State data and/or information involved in method.In a kind of possible design, the chip system further includes memory, institute Memory is stated, for saving distributed unit, centralized unit and the necessary program instruction of terminal device and data.The chip System, can be made of chip, also may include chip and other discrete devices.

Compared to the prior art, This application describes a kind of communication means and devices, in the framework base of the protocol stack of foundation On plinth, when establishing RRC connection request, RRC is established to the transmission of centralized unit by distributed unit and is connected as terminal device The message of configuration parameter, reduces the time delay that RRC connection is established, and the resource allocation conditions based on distributed unit are coordinated or control it The available resource of his distributed unit, improves the handling capacity of system, the user experience is improved.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of separation architecture communication system provided in an embodiment of the present invention；

Fig. 2 is the schematic diagram that a kind of protocol stack provided in an embodiment of the present invention divides；

Fig. 3 is the schematic diagram that another protocol stack provided in an embodiment of the present invention divides；

Fig. 4 is a kind of communication means flow diagram provided in an embodiment of the present invention；

Fig. 5 is another communication means flow diagram provided in an embodiment of the present invention；

Fig. 6 is a kind of distributed unit structure chart provided by the embodiments of the present application；

Fig. 7 is a kind of centralized cellular construction figure provided by the embodiments of the present application；

Fig. 8 is a kind of terminal device structure chart provided by the embodiments of the present application；

Fig. 9 is another terminal device structure chart provided by the embodiments of the present application；

Figure 10 is another distributed unit structure chart provided by the embodiments of the present application；

Figure 11 is a kind of communication apparatus structure figure provided by the embodiments of the present application；

Figure 12 is another terminal device structure chart provided by the embodiments of the present application.

Specific embodiment

The present embodiments relate to terminal device, user can be directed to, setting for voice and/or data connectivity is provided It is standby, there is the handheld device of wireless connecting function or be connected to other processing equipments of radio modem.Wireless terminal It can be communicated through wireless access network (for example, RAN, Radio Access Network) with one or more core nets, nothing Line terminal can be mobile terminal, such as mobile phone (or be " honeycomb " phone) and the computer with mobile terminal, for example, Can be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they and wireless access network hand over Change language and/or data.For example, personal communication service (PCS, Personal Communication Service) phone, nothing Rope phone, Session initiation Protocol (SIP) phone, wireless local loop (WLL, Wireless Local Loop) are stood, individual digital The equipment such as assistant (PDA, Personal Digital Assistant).Wireless terminal is referred to as system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), terminal device (User Device) or user equipment (User Equipment).

The network equipment involved in the embodiment of the present invention (for example, access point) can be and refer to the accession to interface in the sky in net The upper equipment by one or more sectors and wireless terminal communications.The air frame and IP that the network equipment can be used for receive are grouped It is mutually converted, as the router between wireless terminal and the rest part of access net, wherein accessing the rest part of net It may include Internet protocol (IP) network.Attribute management of the network equipment also tunable to air interface.For example, the network equipment can be with It is the base station (BTS, Base Transceiver Station) in GSM or CDMA, is also possible to the base station in WCDMA (NodeB), it can also be the evolved base station (eNB or e-NodeB, evolutional Node B) in LTE, the application is not It limits.

In centralization unit/distributed unit separation architecture schematic diagram shown in FIG. 1, including core net (Core Network, CN) multiple cells (cell) below equipment, centralized unit, distributed unit and distributed unit.Wherein, Distributed unit and centralized unit and terminal device are attached, and are received centralized cell data and are sent to terminal device, Or receive data from terminal device and be sent to centralized unit, the title of homologous ray centralization unit may be not different.It concentrates Formula unit and distributed unit and CN equipment are attached, and are received distributed unit Data Concurrent and are given equipment of the core network, or Data are received from equipment of the core network and are sent to distributed unit, and the title of homologous ray distributed unit may also be not different.It concentrates Formula unit has central controlled function.Centralized unit and distributed unit are the equipment positioned at wireless access network.CN equipment Different equipment is corresponded in different systems, such as mobile management entity (Mobile Management is corresponded in 4G Entity, MME) and/or gateway (Serving Gate Way, S-GW), the corresponding with service GPRS Support Node in 3G (Serving GPRS Support Node, SGSN), Gateway GPRS Support Node (Gateway GPRS Support Node, GGSN) etc..

In centralized unit/distributed unit separation architecture shown in Fig. 1, Fig. 2 is a kind of protocol stack being presently considered The schematic diagram of division.As shown in Fig. 2, terminal equipment side includes rrc layer, PDCP layers, wireless spread-spectrum technology (Radio Link Control, RLC) layer, MAC layer and PHY layer；Distributed unit side includes rlc layer, MAC layer and PHY layer；Centralized cell side packet Include rrc layer and PDCP layers.

Wherein, terminal device passes through the message of Signaling Radio Bearer (Signalling Radio Bearer, SRB0) transmission By the processing of rrc layer, rlc layer, MAC layer and PHY layer, the message that distributed unit is transmitted by SRB0 is by rlc layer, MAC The processing of layer and PHY layer, centralized unit do not have the message that SRB0 is transmitted.Terminal device is passed through by the message that SRB1 is transmitted Rrc layer, PDCP layers, the processing of rlc layer, MAC layer and PHY layer, the message that distributed unit is transmitted by SRB1 by rlc layer, The processing of MAC layer and PHY layer, the message that centralized unit is transmitted by SRB1 is by rrc layer and PDCP layers of processing.Terminal is set The standby message by SRB2 transmission passes through by rrc layer, PDCP layers, the processing of rlc layer, MAC layer and PHY layer, distributed unit The message of SRB2 transmission passes through the processing of rlc layer, MAC layer and PHY layer, and centralized unit is passed through by the message that SRB2 is transmitted Rrc layer and PDCP layers of processing.Terminal device passes through the message of Data Radio Bearer (Data Radio Bearer, DRB) transmission By PDCP layers, the processing of rlc layer, MAC layer and PHY layer, the data that distributed unit is transmitted by DRB are by rlc layer, MAC The processing of layer and PHY layer, centralized unit pass through PDCP layers of processing by the data that DRB is transmitted.

From the point of view of the division of the protocol stack of Fig. 2, the control function of RRC concentrates on centralized unit.The division of this protocol stack The shortcomings that be to control excessively to concentrate, the time delay of signaling Establishing process is bigger.

In view of above-mentioned technical problem, the embodiment of the invention provides a kind of division methods of protocol stack, schematic diagram such as Fig. 3 It is shown.Protocol stack compared to Fig. 2, in the protocol stack of Fig. 3, for terminal equipment side, no matter include protocol layer and carrying The processing of the protocol layer passed through is all essentially identical with Fig. 2, but the protocol stack of distributed unit and centralized unit has occurred Variation.

Specifically, in Fig. 3, terminal equipment side includes rrc layer, PDCP layers, rlc layer, MAC layer and PHY layer；It is distributed Cell side includes rrc layer, PDCP layers, rlc layer, MAC layer and PHY layer (compared with Fig. 2, increasing rrc layer and PDCP layers)；It concentrates Formula cell side includes rrc layer and PDCP layers.

Wherein, the message that terminal device is transmitted by SRB0 is by rrc layer, rlc layer (optional), MAC layer and PHY layer Reason, distributed unit are handled by the message that SRB0 is transmitted by rrc layer, rlc layer (optional), MAC layer and PHY layer, centralization The message that unit is transmitted not over SRB0.The message that terminal device is transmitted by SRB1 by rrc layer, PDCP layers, rlc layer, The processing of MAC layer and PHY layer, the message that distributed unit is transmitted by SRB1 by rrc layer, PDCP layers, rlc layer, MAC layer and The processing of PHY layer, the message that centralized unit is transmitted not over SRB1.Terminal device is passed through by the message that SRB2 is transmitted Rrc layer, PDCP layers, rlc layer, MAC layer and PHY layer processing, the message that distributed unit is transmitted by SRB2 is by rlc layer, MAC The processing of layer and PHY layer, the message that centralized unit is transmitted by SRB2 is by rrc layer and PDCP layers of processing.Terminal device By the data of DRB transmission by PDCP layers, the processing of rlc layer, MAC layer and PHY layer, distributed unit is transmitted by DRB Data pass through the processing of rlc layer, MAC layer and PHY layer, and centralized unit passes through PDCP layers of processing by the data that DRB is transmitted.

Protocol stack based on Fig. 3, embodiments herein provide a kind of communication means, as shown in figure 4, the separation architecture Under communication means can be applied to the network architecture shown in FIG. 1, distributed unit and centralized unit are positioned at wireless access The equipment of net.Wherein, centralized unit (central unit or centralized unit) is at least to have higher level protocol (such as physics (Physical, PHY) layer, MAC layer), the access communicated by the distributed unit with the terminal device Net equipment controls the operation of one or more distributed units.Distributed unit (distributed unit) is at least to have There is lower-level protocols (such as wireless heterogeneous networks (Radio Resource Control, RRC) layer, Packet Data Convergence Protocol (Packet Data Convergence Protocol, PDCP) layer), the access net that is directly communicated with the terminal device Equipment.One distributed unit supports one or more cells.Optionally, centralized unit and distributed unit pass through F1 interface Terminate connection.Further alternative, base station (gNB) can be by a centralized unit and one or more distributed unit groups At.Communication means provided by the embodiments of the present application the following steps are included:

Step 401: terminal device sends RRC connection request message to distributed unit.

Assuming that a distributed unit may include one or more cells, terminal device is resident by the distributed unit To a cell.Distributed unit be for terminal device it is transparent, i.e., terminal device only sees cell, can't see distribution Formula unit.Before terminal device sends RRC connection request message, it is one small to be resident the distributed unit for terminal device Area.

Terminal device sends the RRC connection request message to distributed unit by SRB0.

Alternatively, the RRC connection request message could alternatively be RRC connection recovery request (RRC connection Resume request) message or RRC connection reconstruction request (RRC connection re-establishment request) Message.

Step 402: distributed unit sends RRC connection to terminal device and establishes message.

Optionally, distributed unit sends RRC connection to terminal device by SRB0 and establishes message.

Terminal device receives after RRC connection establishes message, establishes the configuration information in message according to the connection, establishes SRB1。

Alternatively, when the RRC connection request message replaces with RRC connection recovery request (RRC connection Resume request) message when, the RRC connection establish message replace with RRC connection restore (RRC connection Resume) message.Optionally, after terminal device receives RRC connection recovery message, the configuration in message is restored according to the connection Information restores SRB1 and/or SRB2 and/or DRB.

Alternatively, when the RRC connection request message replaces with RRC connection reestablishment request message, the RRC connection Establishing message could alternatively be RRC connection reconstruction message.After terminal device receives RRC connection reconstruction message, according to the connection The configuration information in message is rebuild, SRB1 and/or SRB2 and/or DRB is restored.

Step 403: terminal device sends RRC connection setup complete message to distributed unit.

Terminal device sends the RRC connection setup complete message to distributed unit by the SRB1 established.

Alternatively, when the RRC connection request message replaces with RRC connection recovery request message, the RRC connection It establishes completion message and replaces with RRC connection recovery completion (RRC connection resume complete) message.

Alternatively, when the RRC connection request message replaces with RRC connection reestablishment request message, the RRC connection Establishing completion message could alternatively be RRC connection reconstruction completion (RRC connection re-establishment Complete) message.

Step 404: distributed unit sends first message to centralized unit, and the first message is used for the concentration Formula unit notifies the RRC connection of terminal device is established to complete.

Alternatively, when RRC connection request message replaces with RRC connection recovery request message, distributed unit is to collection Chinese style unit sends first message, and the first message is used for extensive to the RRC connection of the centralized unit notice terminal device It is multiple to complete.

Alternatively, when RRC connection request message replaces with RRC connection reestablishment request message, distributed unit is to collection Chinese style unit sends first message, and the first message is used for the RRC connection weight to the centralized unit notice terminal device Build completion.

Optionally, first message is transmitted by the interface between distributed unit and centralized unit.

Optionally, first message includes the first identifier information of terminal device, wherein the identification information of the terminal device It can be Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (the Cell-Radio Network that distributed unit is terminal device distribution Temporary Identifier, C-RNTI) or terminal device System Architecture Evolution Temporary Mobile Subscriber Identity (System Architecture Evolution-Temporary Mobile Subscriber Identifier, S- ) or other marks, or two or more combinations in above multiple marks TMSI.

Optionally, first message includes the cell information where terminal device foundation/recovery/reconstruction RRC connection, such as cell Mark, specifically, can be Physical Cell Identifier (Physical Cell Identifier, PCI) or Cell Global Identification It is two or more in (Cell Global Identifier, CGI) or other marks, or above multiple marks Combination.

Optionally, it is terminal device foundation/recovery/reconstruction RRC connection distribution collection that first message, which includes distributed unit, Chinese style unit-distributed unit interface resource information, such as centralized unit-distributed unit interface application protocol identification, and/or Data channel mark.

Wherein, first message is also used to notify centralized unit, which cell-radio network is distributed unit temporarily mark Know C-RNTI to dispense, so that centralized unit controls other distributions based on the C-RNTI distribution condition of distributed unit The available C-RNTI of unit or the available C-RNTI of the control centralized unit itself etc..Meanwhile first message is also used to Notify centralized unit, distributed unit is which terminal device establishes above-mentioned connection, grasps and is distributed so as to centralized unit The information of terminal device under formula unit, and it is based on first identifier information, index the context of the terminal device.

Further alternative, distributed unit is eventually in the RRC connection establishment process in first message comprising terminal device 1 parameter of layer (L1parameters) of end equipment configuration, such as PHY layer parameter.Such as the configuration parameter of dedicated physical resource, power phase The configuration parameter of pass.Wherein, dedicated physical resource includes but is not limited to dedicated uplink and downlink pilot resources, dedicated physical uplink Control channel (Physical Uplink Control Channel, PUCCH) resource, dedicated detection reference signal (Sounding Reference Signal, SRS) resource etc..The relevant configuration parameter of power includes but is not limited to physical uplink Shared channel (Physical Uplink Shared Channel, PUSCH) power control relevant parameter, PUCCH power control Relevant parameter, Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) power control are related Parameter etc., specifically, above-mentioned each channel power control relevant parameter may include: power offset, power control mark etc..

Wherein, the configuration parameter of dedicated physical resource is for notifying centralized unit, and distributed unit is by which dedicated object Resource has dispensed reason, there are no distribution to set away for which resource, so that the centralized unit is based on the distribution The resource allocation conditions of formula unit are coordinated or control the available physical resource of other distributed units, to reduce different distributions Relevant interference between formula unit, and then promote the handling capacity of whole system.

The relevant configuration parameter of power control such as power offset, for notifying centralized unit, distributed unit is carried out Power situation when scheduling, so that the centralized unit controls what other distributed units used in same or similar resource Power situation to reduce relevant interference between different distributions formula unit, and then promotes the handling capacity of whole system.Power control Relevant configuration parameter such as power control identifies, and states centralized unit for notifying, which RNTI is distributed unit distribute It goes, so as to the centralized RNTI distribution condition of the unit based on the distributed unit, controlling other distributed units can RNTI, or the available RNTI of the control centralized unit itself etc..

It is further alternative, distributed unit in the RRC connection establishment process in the first message comprising terminal device For 2 parameter (L2parameters) of terminal equipment configuration at least one layer, such as medium access control (Media Access Control, MAC) layer, rlc layer, PDCP layer parameter.

The parameter for including in first message be centralized unit it is subsequent be that terminal device continues to establish necessity that business provides Parameter, while the configuration of these parameters also for centralized unit carry out resource centralized control coordination provide foundation and basis.

Step 405: centralized unit sends initial message to CN equipment.

Wherein, initial message is for notifying that core net is terminal equipment configuration parameter.Further, initial message can be taken Band is the centralized unit and CN interface resource information of terminal device distribution, such as centralized unit-CN interface application protocol identification And/or data channel mark.

Optionally, initial message can be transmitted by the S1 interface in LTE system or the G1 interface in NR system, the present invention With no restriction.

Optionally, in initial message carried terminal equipment second identifier information, wherein the second identifier information can be with Be distributed unit be terminal device distribution C-RNTI, perhaps know terminal device S-TMSI or other marks or It is the combination of multiple marks.

Alternatively, when the RRC connection request message replaces with RRC connection recovery request (RRC connection Resume request) message when, the initial message replaces with terminal device context recovery request (UE Context Resume Request) message.At this point, this step is optional.

When the RRC connection request message replaces with RRC connection reconstruction request (RRC connection re- Establishment request) message when, this step is not present.

Optionally, step 406:CN equipment sends context to centralized unit and establishes message.

Wherein, the context establishes the service quality (Quality for the business that carried terminal equipment needs to establish in message Of Service, QoS) information, security information.Wherein the Qos information of the business can be the corresponding nothing of established business The QoS information of line access bearer (Radio Access Bearer, RAB), such as priority, guaranteed rate, maximum rate ginseng Number；Alternatively, the Qos information of the business is also possible to the QoS letter for one or more IP stream that established business may include Breath, such as priority, the guaranteed rate, maximum rate parameter of each IP stream.Wherein the security information includes security key.

Alternatively, when the RRC connection request message replaces with RRC connection recovery request (RRC connection Resume request) message when, the context establish message replace with terminal device context restore response (UE Context resume Response) message.At this point, this step is optional.

Optionally, step 407: centralized unit sends second message to distributed unit.

Wherein, the second message is for notifying the distributed unit to establish aforementioned business corresponding one or more The configuration parameter of DRB and the configuration parameter of SRB2, wherein include each radio bearer (Radio in the configuration parameter Bearer, RB) in the relevant configured parameter of service quality QoS of eating dishes without rice or wine.

It optionally, include rlc layer configuration parameter in the configuration information of DRB and SRB2, such as RLC pattern information, RLC timer Information etc..

Optionally, second message can also include the configuration parameter of SRB1, wherein the configuration parameter of the SRB1 includes RLC Layer configuration parameter, such as RLC pattern information, RLC timer information, can also include PDCP layers of configuration parameter.

The second message is also used to notify the security key of SRB1 described in the distributed unit, the safety of the SRB1 Key can be the security key that the centralized unit is received from core net；Or the security key of the SRB1 can be What centralization unit Encryption Algorithm according to used in the security key and SRB1 received from core net obtained Key_RRCencAnd centralized unit integral algorithm according to used in the security key and SRB1 received from core net The Key of acquisition_RRCint.Wherein, Key_RRCencIt is the key for encrypting RRC information, Key_RRCintIt is used to RRC information progress The key of integrity protection.

The second message is also used to notify the distributed unit, security algorithm used in terminal device, such as The protection algorithm integrallty of SRB1, SRB2, for information such as the Encryption Algorithm of SRB1, SRB2 and DRB.

Optionally, the second message further includes the MAC layer parameter for configurating terminal device, such as maximum automatic weight of mixing Pass request (Hybrid Automatic Repeat reQuest, HARQ) the number of transmissions, buffer status report (Buffer Status Report, BSR) configuration parameter, power headroom reporting (Power Headroom Report, PHR) configuration parameter etc..

Optionally, it is the parameters such as terminal equipment configuration SRB2, DRB that second message, which includes for the distributed unit, also For the relevant parameter of terminal equipment configuration MAC layer, PHY layer, to realize subsequent communications.

Optionally, the second message is also used to the corresponding logic channel phase of SRB1, SRB2 and DRB of configurating terminal device Parameter is closed, such as priority, prioritized bit rates (Prioritized Bit Rate, PBR) etc..

Optionally, the second message may include configuration distributed unit above-mentioned parameter (the PDCP layer parameter of SRB2 and Except the PDCP layer parameter of DRB) message and be configurating terminal device above-mentioned parameter message.

The application that the interface between the centralized unit and the distributed unit can be used in the second message is assisted View message is transmitted (for example, it is assumed that the interface between the centralization unit and the distributed unit is F1 interface, then institute It states second message F1 application protocol (F1Application Protocol, F1AP) message can be used and transmitted).

Optionally, the third message sent comprising distributed unit to terminal device in the second message.

Optionally, step 408: distributed unit sends third message to terminal device.

After the distributed unit receives the second message, on the one hand according to the second message, configuration is distributed The PDCP (just for SRB1) and rlc layer parameter of the carryings such as cell side relevant SRB2, DRB, SRB1 and distributed unit side MAC layer and physical layer related parameter；On the other hand, according to the second message, sending to terminal device includes safe mode The third message of command messages notifies the terminal device to enable the safeguard protection of SRB1, SRB2 and DRB.

Optionally, the security algorithm used in Security Mode Command message comprising the terminal device, such as SRB1 and SRB2 Used protection algorithm integrallty, Encryption Algorithm used in SRB1, SRB2 and SRB3 etc..

Optionally, the third message of Mode Command Message safe to carry is sent using SRB1, the third messages application Integrity protection, but without application encryption.

It is further alternative, (RRC Connection is set comprising RRC connection reconfiguration in third message Reconfiguration) message.

Wherein, RRC connection reconfiguration set (RRC Connection Reconfiguration) message be also possible to it is independent Message.The present invention is with no restriction.When it is independent message that RRC connection reconfiguration, which sets message, RRC connection reconfiguration is set message itself and is answered With integrity protection and encryption.

Optionally, the third message can be what distributed unit generated and sent according to the second message, at this point, The third message can be sent to the terminal device by the SRB1；Or the third message is also possible to centralization Unit, which is generated, carries out transparent transmission by distributed unit, at this point, the third message can be sent out by the SRB1 or SRB2 It gives the terminal device or the third message is also possible to centralized unit and generates through the transparent biography of distributed unit It is defeated, after decoding the second message by distributed unit, the third message is directly obtained from the second message, then The terminal device is sent to by the SRB1.

Optionally, when it is independent message that the RRC connection reconfiguration, which sets message, the RRC connection reconfiguration set message with The third message can be described to carry and be sent to by the distributed unit message different from centralized unit interface Distributed unit.

The RRC connection reconfiguration sets the PDCP and rlc layer for using SRB1, SRB2, DRB in message comprising the terminal device The MAC layer and physical layer related parameter of parameter and terminal equipment side.The RRC connection reconfiguration sets messages application integrity protection And encryption.

Alternatively, when the RRC connection request message replaces with RRC connection recovery request (RRC connection Resume request) message when, the context in step 406, which establishes message and replaces with terminal device context, restores response (UE Context resume Response) message does not include Security Mode Command message in the third message in this step.

When the RRC connection request message replaces with RRC connection reconstruction request (RRC connection re- Establishment request) message when, do not include Security Mode Command message in the third message in this step.

Optionally, the third message and the RRC connection reconfiguration, which set message, can be same RRC information, can also be with It is different RRC information.

Optionally, step 409: terminal device sends configuration to distributed unit and completes message.

Optionally, terminal device sends the corresponding completion message of third message to distributed unit.

Optionally, step 410: distributed unit sends the 4th message to centralized unit.

Wherein, the 4th message is used to inform that terminal device parameter configuration is completed to the centralized unit.

If there is no 1 configuration parameter of layer comprising the terminal device in the second message, wrapped in the 4th message It is 1 parameter of layer of terminal equipment configuration containing distributed unit in above-mentioned third message, such as PHY layer parameter, dedicated physical resource The relevant configuration parameter of configuration parameter, power.

It is further alternative, if there is no layer 2 configuration parameter or described comprising terminal device in the second message Distributed unit has modified 2 configuration parameter of layer of terminal device, comprising being distributed in above-mentioned third message in the 4th message Formula unit is 2 parameter of at least one layer of terminal equipment configuration, such as MAC layer, rlc layer, PDCP layer parameter.

The effect of parameter carried in the layer 1,2 parameter role of layer and RRC connection setup complete message is similar, herein not It repeats.

In embodiments herein, framework shown in Fig. 3 changes pure centralized control compared with the overall architecture of UMTS Architecture design, reduce time delay；Compared with the flat framework under LTE system, multi-plot joint processing, multiple cell association are improved The difficult technical problem of same and pooling of resources control.Simultaneously further, Fig. 3 is compared with Fig. 2, by the part of centralized unit Function transfers to distributed unit to share (such as via rrc layer and PDCP layers of information processing), reduces time delay, improves user's body It tests.

Embodiments herein can be realized following function:

(1) RRC connection establishment process only carries out between terminal device and distributed unit, reduces RRC connection foundation Time delay.Distributed unit has been responsible for a part of RRC or RRM function, for example, the physical layer resources of terminal device, a part are wireless 2 parameter of layer of carrying and the configuration work of part layer 3 (L3Parameters) parameter can be completed in distributed unit, Its 3 parameter of middle layer, which may include, measures relevant parameter, such as measurement object, measurement amount, and measurement event etc. can also include Timer length etc..

(2) (RRC/PDCP/RLC/MAC/PHY) protocol stack of a SRB1 full set is configured in distributed unit, so that distribution Formula unit can be with the wireless parameter of rapid configuration terminal device, without reducing time delay by centralized cell processing.

(3) distributed unit is completed to the wireless parameter of terminal device with the centralized unit of notice is postponed, so as to centralization Unit from global angle, can more preferably grasp situations such as load of each cell, interference, so as to preferably carry out RRM control.

(4) SRB2 is mainly used for carrying Non-Access Stratum (Non Access Stratum, NAS) message, which is collecting Chinese style unit carries out PDCP layers of encryption and complete guarantor, the rrc layer for needing not move through distributed unit are handled again, directly carries out The rlc layer of distributed unit reduces processing delay to simplify protocol processes.

(5) data of DRB are also encrypted in the PDCP layer of centralized unit, are then sent to the RLC of distributed unit Layer is handled, and since the key of DRB is not sent to distributed unit, guarantees that data can not be monitored in distributed unit.It mentions Information Security is risen.

Referring to Fig. 5, the embodiment of the present application provides the communication means under another separation architecture, to shorten handoff Time, improve user experience, which can be applied to the network architecture shown in FIG. 1 and the protocol stack of Fig. 3, described Method the following steps are included:

Step 501: distributed unit, which determines, executes switching in distributed unit.

After distributed unit receives measurement report message, judge what terminal device needed to switch according to measurement report message Target cell.If Target cell and the current serving cell of terminal device are located in the same distributed unit, i.e., terminal is set Standby source cell and Target cell is in a distributed unit, then distributed unit determines that terminal device will execute distribution Switching in unit.

In this step, compared with the prior art, it does not need to initiate switching request to centralized unit, so as to reduce Centralized unit interacts bring time delay with distributed unit.

Step 502: distributed unit sends switching command message to terminal device.

Wherein, the physical resource ginseng of the layer 1 (such as PHY layer) of the Target cell in switching command message comprising terminal device Number.

Optionally, include following instruction information in the switching command message:

Do not execute reconstruction；

SRB1 is executed to rebuild, execute at least one that SRB2 rebuilds, executes at least one DRB reconstruction.

DRB is rebuild, for example, it is assumed that the terminal device establishes 3 DRB, then can indicate the terminal device The reconstruction of DRB1 is only carried out, other DRB (DRB2 and DRB3) do not execute reconstruction, or the instruction terminal device only carries out DRB1 With the reconstruction of DRB2, the reconstruction of DRB3 is not executed.

Wherein, the framework of SRB0, SRB1, SRB2 and DRB protocol stack is as shown in figure 3, its protocol layer specifically included can Referring to the description of front, details are not described herein.

As advanced optimizing, default parameter can be solidified by agreement.For example above-mentioned reconstruction instruction information can also be by Agreement solidification does not need to carry specific reconstruction instruction information, it is only necessary to carry an instruction information, such as the instruction of 1bit Information or Boolean type variable indicate information, and when indicating that information is 1 or is Tr terminal device, terminal device executes as follows One in movement:

1) all SRB1, SRB2, DRB do not execute reconstruction；

2) SRB1 reconstruction is only carried out；

3) SRB2 reconstruction is only carried out；

At least one DRB reconstruction is executed, for example, it is assumed that the terminal device establishes 3 DRB, then can be indicated described Terminal device only carries out the reconstruction of DRB1, and other DRB (DRB2 and DRB3) do not execute reconstruction, or the instruction terminal device is only The reconstruction for executing DRB1 and DRB2, does not execute the reconstruction of DRB3；Or

3) SRB1, SRB2 are executed, at least two radio bearers (Radio Bearer, RB) at least one DRB (including SRB1, SRB2 and DRB) it rebuilds.

The instruction information is also possible to notify by other forms to terminal device, such as when wrapping in switching command message When chain containing next-hop counts (Next hop Chaining Count, NCC), terminal device executes normal switching, works as switching command When not including lower NCC in message, terminal device executes above-mentioned optimization switching.

Optionally, following at least one parameter configuration is included in the switching command message:

The parameter of SRB1, such as rlc layer, PDCP layer parameter and logic channel relevant parameter；

The parameter of SRB2, such as rlc layer parameter, logic channel relevant parameter；

The parameter of at least one DRB, such as rlc layer parameter, logic channel relevant parameter；

2 parameter of layer, such as at least one of MAC layer, rlc layer, PDCP layer parameter.

It should be understood that when some or the certain parameter configurations in above-mentioned parameter configuration are compared to before receiving switching command Parameter configuration there is no that can not carry in the switching command when variation, described there is no the parameter configuration of variation letters Breath.

Step 503: terminal device executes corresponding operation according to switching command message.

Optionally, after terminal device receives switching command message, according to switching command message, following behaviour may be executed Make:

If carrying the instruction information for not executing reconstruction in the switching command, the terminal device is not rebuild described SRB1, SRB2 and all DRB, more new key, does not change security algorithm, continues to transmit (sending and receiving) data.

If carrying the instruction information for only carrying out SRB1 reconstruction in the switching command, the terminal device is not rebuild SRB2 and all DRB, more new key, does not change security algorithm, continues to transmit (sending and receiving) data.But the terminal is set The standby SRB1 that rebuilds specifically includes PDCP, the rlc layer for rebuilding SRB1.Concrete operations made by PDCP layers and rlc layer and existing when reconstruction There is technology similar, therefore not to repeat here.

If carrying the instruction information for only carrying out SRB2 reconstruction in the switching command, the terminal device does not rebuild institute SRB1 and all DRB is stated, more new key, does not change security algorithm, continues to transmit (sending and receiving) data.But the terminal Equipment rebuilds SRB2 and specifically includes PDCP, the rlc layer for rebuilding SRB2.When reconstruction concrete operations made by PDCP layers and rlc layer with The prior art is similar, and therefore not to repeat here.

If carrying the instruction information for only carrying out some or certain DRB reconstruction in the switching command, the terminal is set Standby not rebuild the SRB1 and SRB2, more new key, does not change security algorithm, continues to transmit (sending and receiving) data.But The terminal device rebuilds some or certain DRB, specifically includes PDCP, the rlc layer for rebuilding some or certain DRB. Concrete operations made by PDCP layers and rlc layer are similar to the prior art when reconstruction, and therefore not to repeat here.

Since the SRB2 and DRB of terminal device do not need to execute reconstruction, in this step, compared with prior art, The processing delay for reducing reconstruction further reduces the time delay that switching executes, meanwhile, reduce due to rebuilding bring RLC Layer packet loss, also unnecessary data packet retransmission after the switching of reduction, saves resource.

Optionally, step 504: terminal device sends handoff completion message to distributed unit.

Optionally, step 505: distributed unit sends indication message to centralized unit.

Wherein, indication message is used to indicate terminal device and has been switched to the Target cell.

It optionally, is 1 parameter of layer of terminal equipment configuration, such as dedicated physics comprising distributed unit in indication message The relevant configuration parameter of the configuration parameter of resource, power.

It is further alternative, in the switch indicating information comprising distributed unit be terminal equipment configuration at least one layer 2 parameters, such as MAC layer, rlc layer, PDCP layer parameter.

In embodiments herein, framework shown in Fig. 3 changes pure centralized control compared with the overall architecture of UMTS Architecture design, reduce time delay；Compared with the flat framework under LTE system, multi-plot joint processing, multiple cell association are improved The difficult technical problem of same and pooling of resources control.Simultaneously further, terminal device packet is sent to by distributed unit The switching command message of containing parameter, allows terminal device to perform partial reconstitution according to switching command message, to reduce The processing delay of reconstruction simplifies processing when switching in distributed unit, while ensure that the continuity of data processing, reduces HO-break duration, improves user experience.

It is a kind of distributed unit 600 provided by the embodiments of the present application referring to Fig. 6, Fig. 6 comprising:

Receiving unit 601, the radio resource control RRC connection request message sent for receiving the terminal device.

Transmission unit 602 establishes message for sending RRC connection to the terminal device.

Wherein, the receiving unit 601 is also used to receive the RRC connection setup complete message that the terminal device is sent； And first message is sent to centralized unit, the first message is used for the centralized unit notice terminal device RRC connection, which is established, to be completed.

In a possible implementation, the receiving unit 601 is also used to through Signaling Radio Bearer SRB0 to described Terminal device sends the RRC connection and establishes message；

Processing unit 603 is handled for establishing message to the RRC connection；Wherein, the RRC connection foundation disappears Breath includes: the processing of rrc layer, rlc layer, MAC layer and PHY layer in the processing that the processing unit passes through；Or including rrc layer, The processing of MAC layer and PHY layer.

In a possible implementation, processing unit 603, for the RRC connection establishment process in the terminal device In, it is following at least one parameter of the terminal equipment configuration: PHY layer parameter, rlc layer parameter, MAC layer parameter, packet count According to convergence protocol PDCP layer parameter；The first message includes above-mentioned parameter.

In a possible implementation, receiving unit 601 is also used to receive the centralized unit is sent second and disappears Breath, the second message include the configuration parameter and SRB2 for the one or more Data Radio Bearer DRB that distributed unit is established Configuration parameter；

Processing unit 603 is also used to handle the data that the SRB2 and DRB is transmitted；Wherein, the SRB2 transmission Message in the processing that the processing unit 603 passes through include: rlc layer, MAC layer and PHY layer processing, the DRB transmission Data are in the processing that the processing that the processing unit passes through includes: rlc layer, MAC layer and PHY layer.

In a possible implementation, the second message includes the configuration parameter of SRB1；Wherein, the SRB1 transmission Message in the processing that the processing unit 603 passes through include: rrc layer, PDCP layers, the processing of rlc layer, MAC layer and PHY layer.

In a possible implementation, the transmission unit 602 is also used to disappear to terminal device transmission third Breath, the safeguard protection that the third message is used to that the terminal device to be notified to enable SRB1, SRB2 and DRB；

The receiving unit 601 is also used to receive the configuration that the terminal device is sent and completes message.

Optionally, the transmission unit 602 is also used to unit by SRB1 or SRB2 to described in terminal device transmission Third message.

Optionally, the transmission unit 602 is also used to send the processing unit 603 and is generated according to the second message The third message.

In a possible implementation, the transmission unit 602 is also used to send the 4th message to centralized unit, The content of 4th message can be found in the related content in above-mentioned steps 410, and details are not described herein.

In the present embodiment, the processing unit 603 of distributed unit has been responsible for a part of RRC or RRM function, for example, terminal The configuration of the physical layer resources of equipment, 2 parameter of layer of a part of radio bearer and part layer 3 (L3 Parameters) parameter Work can be completed in distributed unit, and 3 parameter of middle layer may include the relevant parameter of measurement, and such as measurement object is surveyed Amount amount, measurement event etc. can also include some timer lengths etc..Meanwhile processing unit is configured with the (RRC/ of a SRB1 full set PDCP/RLC/MAC/PHY) protocol stack so that distributed unit can with the wireless parameter of rapid configuration terminal device, without By centralized cell processing, reduce time delay.

It is a kind of centralized unit 700 provided by the embodiments of the present application referring to Fig. 7, Fig. 7 comprising:

Receiving unit 701, the first message sent for receiving the distributed unit, the first message are used for institute Stating centralized unit notifies the radio resource control RRC of the terminal device connects to establish to complete, and the distributed unit is extremely Less with lower-level protocols, the access network equipment directly communicated with the terminal device.

Transmission unit 702, for sending initial message to equipment of the core network, the initial message is for notifying that core net is Terminal equipment configuration parameter.

Wherein, the receiving unit 701 is also used to receive the context that the equipment of the core network is sent and establishes message.

In a possible implementation, the centralization unit further includes processing unit 703, for setting in the terminal It is following at least one parameter of the terminal equipment configuration: PHY layer parameter, rlc layer ginseng in standby RRC connection establishment process Number, MAC layer parameter, Packet Data Convergence Protocol PDCP layer parameter；The first message includes above-mentioned parameter.

In a possible implementation, transmission unit 702 is also used to send second message to the distributed unit, The second message includes the configuration parameter and signaling for the one or more Data Radio Bearer DRB that the distributed unit is established The configuration parameter of radio bearer SRB2；

Processing unit 703 is handled for the SRB2 and DRB data transmitted；Wherein, what the SRB2 was transmitted disappears Breath includes: the processing of rrc layer, PDCP layers in the processing that the processing unit passes through；The data of the DRB transmission are in the processing Unit passes through PDCP layers of processing.

In a possible implementation, receiving unit 701 is also used to receive the distributed unit is sent the 4th and disappears Breath.

In a possible implementation, processing unit 703 is also used to be following at least the one of the terminal equipment configuration Kind parameter: PHY layer parameter, rlc layer parameter, MAC layer parameter, PDCP layer parameter；4th message includes above-mentioned parameter.

Wherein, the content of the 4th message can be found in the related content in above-mentioned steps 410, and the content of second message can be found in Related content in above-mentioned steps 407, details are not described herein.

In the present embodiment, (RRC/PDCP/RLC/MAC/PHY) protocol stack of a SRB1 full set is configured in distributed unit, So that distributed unit can be with the wireless parameter of rapid configuration terminal device, without the processing unit by centralized unit Processing, reduces time delay.Meanwhile distributed unit is completed to match the wireless parameter of terminal device and postpones notification receiving unit, with Just centralized unit from global angle, can more preferably grasp situations such as load of each cell, interference, so as to preferably carry out RRM control.

It is a kind of terminal device 800 provided by the embodiments of the present application referring to Fig. 8, Fig. 8 comprising:

Transmission unit 801, for sending radio resource control RRC connection request message to distributed unit.

Receiving unit 802 establishes message for receiving the RRC connection that the distributed unit is sent.

Wherein, the transmission unit 801 is also used to send RRC connection setup complete message to the distributed unit；Institute Receiving unit 802 is stated, is also used to receive the third message that the distributed unit is sent, the third message is described for notifying The safeguard protection of terminal device enabling Signaling Radio Bearer SRB1, SRB2 and Data Radio Bearer DRB；The transmission unit 801, It is also used to send configuration to the distributed unit and completes message.

In a possible implementation, transmission unit 801, for passing through SRB0 to described in distributed unit transmission RRC connection request message；

Processing unit 803, the message for transmitting to the SRB0 are handled；Wherein, the message of the SRB0 transmission In the processing that the processing that the processing unit passes through includes: rrc layer, rlc layer, MAC layer and PHY layer；Or include: rrc layer, The processing of MAC layer and PHY layer.

In a possible implementation, the receiving unit 802 is sent out for receiving the distributed unit by SRB0 Message is established in the RRC connection sent.

In a possible implementation, the transmission unit 801, for being sent by SRB1 to the distributed unit The RRC connection setup complete message；

Processing unit 803, the message for transmitting to the SRB1 are handled；Wherein, the message of the SRB1 transmission It include: rrc layer, PDCP layers, the processing of rlc layer, MAC layer and PHY layer in the processing that the processing unit passes through.

In a possible implementation, the transmission unit 801, for receiving the distribution by SRB1 or SRB2 The third message that unit is sent；

Processing unit 803, the message for transmitting to the SRB2 are handled；Wherein, the message of the SRB2 transmission The processing that the processing unit passes through include: rrc layer, PDCP layer, rlc layer, MAC layer and PHY layer handle.

In a possible implementation, it is raw according to second message to be also used to send processing unit for the transmission unit 801 At the third message, the second message include the distributed unit establish one or more DRB configuration parameter With the configuration parameter of SRB2；

Processing unit 803, for handling the message of the DRB and SRB2 transmission；Wherein, the DRB is transmitted Data are in the processing that the processing that the processing unit passes through includes: PDCP layers, rlc layer, MAC layer and PHY layer.

It is a kind of terminal device 900 provided by the embodiments of the present application referring to Fig. 9, Fig. 9 comprising:

Receiving unit 901 wraps in the switching command message for receiving the switching command message of distributed unit transmission Containing following instruction information: not executing reconstruction；Signaling Radio Bearer SRB1 is executed to rebuild, execute SRB2 reconstruction, execute at least one At least one that Data Radio Bearer DRB is rebuild.

Processing unit 902, for executing corresponding operation according to the switching command message.

Wherein, the corresponding operating that processing unit executes can be found in the related content in above-mentioned steps 503, no longer superfluous herein It states.

Transmission unit 903, for sending handoff completion message to the distributed unit.

In the present embodiment, the switching command message comprising parameter that distributed unit is sent is received by receiving unit, is made Processing unit can perform partial reconstitution according to switching command message, to reduce the processing delay of reconstruction, simplify and dividing Processing in cloth unit when switching, while ensure that the continuity of data processing, reduce HO-break duration, improves use Family experience.

It is a kind of distributed unit 1000 provided by the embodiments of the present application referring to Figure 10, Figure 10 comprising:

Processing unit 1001 executes switching in distributed unit for determining；

Transmission unit 1002 wraps in the switching command message for sending switching command message to the terminal device Information is at least indicated containing following: not executing reconstruction；Signaling Radio Bearer SRB1 is executed to rebuild, execute SRB2 reconstruction, execute at least At least one that one Data Radio Bearer DRB is rebuild.

Receiving unit 1003, the handoff completion message sent for receiving the terminal device.

Wherein, transmission unit 1002 are also used to send indication message to centralized unit.

In a possible implementation, processing unit 1001, for following at least one for the terminal equipment configuration Kind parameter: PHY layer parameter, rlc layer parameter, MAC layer parameter, Packet Data Convergence Protocol PDCP layer parameter；The switching Indicate that information includes above-mentioned parameter.

In embodiments herein, the switching command message that terminal device includes parameter is sent to by transmission unit, is made Terminal device can perform partial reconstitution according to switching command message, to reduce the processing delay of reconstruction, simplify and dividing Processing in cloth unit when switching, while ensure that the continuity of data processing, reduce HO-break duration, improves use Family experience.

Figure 11 is another schematic diagram of the communication device 1100 provided according to one embodiment of the application.As shown in figure 11, should Device 1100 can be the centralized unit or distributed unit in above-described embodiment, comprising: input interface 1101, output interface 1102, processor 1103 and memory 1104.The input interface 1101, output interface 1102, processor 1103 and memory 1104 can be connected by bus system 1105.Optionally, the input interface, output interface can be omitted.

The memory 1104 includes program, instruction or code for storing.The processor 1103, it is described for executing Program, instruction or code in memory 1104, to control, input interface 1101 receives signal, control output interface 1102 is sent Signal and implement what the centralized unit or distributed unit in embodiment corresponding to above-mentioned Fig. 4 and Fig. 5 were implemented Each step and function, details are not described herein again.It is above-mentioned, input interface 1101, output interface 1102 and processor 1103 it is specific Embodiment can be accordingly with reference to the receiving unit 601,701,1003 in above-mentioned Fig. 6, Fig. 7, Figure 10 embodiment, transmission unit 602,702,1002 and processing unit 603,703,1001 in illustrate, which is not described herein again.

It should be understood that in the embodiment of the present application, which can be central processing unit (Central Processing Unit, CPU), it can also be other general processors, digital signal processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) either other programmable logic device, discrete door or transistor logic device Part, discrete hardware component etc..General processor can be microprocessor or the processor is also possible to any conventional place Manage device etc..

The memory 1104 may include read-only memory and random access memory, and provide respectively to processor 1103 Instruction and data.The a part of of memory 1104 can also include nonvolatile RAM.For example, memory 1104 It can be with the information of storage device type.

The bus system 1105 can also include power bus, control bus and state letter in addition to including data/address bus Number bus etc..But for the sake of clear explanation, various buses are all designated as bus system in figure.

During realization, each step of method shown in Fig. 4 and/or Fig. 5 can pass through the hardware in processor 1103 The instruction of integrated logic circuit or software form is completed.The step of method in conjunction with disclosed in the embodiment of the present application, can be direct Be presented as that hardware processor executes completion, or in processor hardware and software unit combination execute completion.Software unit It can be located at random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory, In the storage medium of this fields such as register maturation.The storage medium is located in memory 1104, and processor 1103 is read Information in memory 1104, the step of completing Fig. 4 and/or Fig. 5 method in conjunction with its hardware.To avoid repeating, here no longer in detail Thin description.

It should be noted that in a specific embodiment, processing unit in Fig. 6, Fig. 7, Figure 10 can be with similar Realize that transmission unit can be realized that receiving unit can be realized with by receiver by transmitter in the processor 1103 of Figure 11.

Figure 12 is a kind of block diagram of terminal device 1200 shown according to an exemplary embodiment.The terminal device 1200 can To be mobile phone, computer, tablet device etc..

Referring to Fig.1 2, terminal device 1200 may include following one or more components: receiver 1201, transmitter 1202, processing component 1203, memory 1204, power supply module 1206, multimedia component 1208, audio component 1210, input/defeated The interface 1212 of (I/O) out, sensor module 1214.And above-mentioned multiple components can be connected by system bus.

The integrated operation of the usual controlling terminal equipment 1200 of processing component 1203, such as with display, call, data are logical Letter, camera operation and record operate associated operation.Processing component 1203 may include one or more processors 1220 It executes instruction, to perform all or part of the steps of the methods described above.In addition, processing component 1203 may include one or more Module, convenient for the interaction between processing component 1203 and other assemblies.For example, processing component 1203 may include multimedia mould Block, to facilitate the interaction between multimedia component 1208 and processing component 1203.

Memory 1204 is configured as storing various types of data to support the operation in terminal device 1200.These numbers According to example include any application or method for being operated on terminal device 1200 instruction, contact data, electricity Talk about book data, message, picture, video etc..Memory 1204 can be by any kind of volatibility or non-volatile memory device Or their combination is realized, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk or CD.

Power supply module 1206 provides electric power for the various assemblies of terminal device 1200.Power supply module 1206 may include power supply Management system, one or more power supplys and other with for terminal device 1200 generate, manage, and distribute associated group of electric power Part.

Multimedia component 1208 includes the screen of one output interface of offer between terminal device 1200 and user.? In some embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, Screen may be implemented as touch screen, to receive input signal from the user.Touch panel includes that one or more touch passes Sensor is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding is dynamic The boundary of work, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more Media component 1208 includes a front camera and/or rear camera.When terminal device 1200 is in operation mode, as clapped When taking the photograph mode or video mode, front camera and/or rear camera can receive external multi-medium data.It is each preposition Camera and rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.

Audio component 1210 is configured as output and/or input audio signal.For example, audio component 1210 includes a wheat Gram wind (MIC), when terminal device 1200 is in operation mode, when such as call mode, recording mode, and voice recognition mode, Mike Wind is configured as receiving external audio signal.The received audio signal can be further stored in memory 1204 or via Communication component 1216 is sent.In some embodiments, audio component 1210 further includes a loudspeaker, for exporting audio letter Number.

I/O interface 1212 provides interface, above-mentioned peripheral interface module between processing component 1203 and peripheral interface module It can be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button and Locking press button.

Sensor module 1214 includes one or more sensors, for providing the shape of various aspects for terminal device 1200 State assessment.For example, sensor module 1214 can detecte the state that opens/closes of terminal device 1200, component it is relatively fixed Position, such as the component are the display and keypad of terminal device 1200, and sensor module 1214 can also detect terminal and set For 1200 or the position change of 1,200 1 components of terminal device, the existence or non-existence that user contacts with terminal device 1200, The temperature change in 1200 orientation of terminal device or acceleration/deceleration and terminal device 1200.Sensor module 1214 may include connecing Nearly sensor is configured to detect the presence of nearby objects without any physical contact.Sensor module 1214 is also It may include optical sensor, such as CMOS or ccd image sensor, for being used in imaging applications.In some embodiments, should Sensor module 1214 can also include acceleration transducer, and gyro sensor, Magnetic Sensor, pressure sensor or temperature pass Sensor.

Receiver 1201 and transmitter 1202 are configured to facilitate wired between terminal device 1200 and other equipment or nothing The communication of line mode.Terminal device 1200 can access the wireless network based on communication standard, such as WiFi, 2G or 3G or they Combination.

In the exemplary embodiment, terminal device 1200 can by one or more application specific integrated circuit (ASIC), Digital signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field-programmable gate array It arranges (FPGA), controller, microcontroller, microprocessor or other electronic components to realize, for executing the above method.

It should be noted that the processing unit in processing unit or Fig. 9 in Fig. 8 can in a specific embodiment To be realized with the processor 1220 of Figure 12, the transmission unit in transmission unit or Fig. 9 in Fig. 8 can be by the transmitter of Figure 12 1202 realize, the receiving unit in receiving unit or Fig. 9 in Fig. 8 can be realized with by the receiver 1201 of Figure 12.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or It partly generates according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, dedicated meter Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center User's line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or Data center is transmitted.The computer readable storage medium can be any usable medium that computer can access or It is comprising data storage devices such as one or more usable mediums integrated server, data centers.The usable medium can be with It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk Solid State Disk (SSD)) etc..

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. a kind of communication means characterized by comprising

The radio resource control RRC connection request message that distributed unit receiving terminal apparatus is sent；

The distributed unit sends RRC connection to the terminal device and establishes message；

The distributed unit receives the RRC connection setup complete message that the terminal device is sent；

The distributed unit sends first message to centralized unit, and the first message is used for logical to the centralized unit Know that the RRC connection of terminal device is established to complete；

Wherein, the distributed unit and the centralized unit are the equipment positioned at wireless access network, the centralization unit It is communicated by the distributed unit with the terminal device.

2. the method according to claim 1, wherein the distributed unit sends RRC to the terminal device Connection establishes message and includes:

The distributed unit sends the RRC connection to the terminal device by Signaling Radio Bearer SRB0 and establishes message, Wherein, it includes: rrc layer, rlc layer, MAC layer and PHY that the RRC connection, which establishes message in the processing that the distributed unit is passed through, The processing of layer；Or the processing including rrc layer, MAC layer and PHY layer.

3. method according to claim 1 or 2, which is characterized in that comprising the terminal device in the first message Distributed unit described in RRC connection establishment process is following at least one parameter of the terminal equipment configuration: PHY layer ginseng Number, MAC layer parameter, rlc layer parameter, Packet Data Convergence Protocol PDCP layer parameter.

4. method according to any one of claim 1-3, which is characterized in that in the distributed unit to the concentration After formula unit sends first message, the method also includes:

The distributed unit receives the second message that the centralized unit is sent, and the second message includes the distribution The configuration parameter for the one or more Data Radio Bearer DRB that unit is established and the configuration parameter of SRB2；

Wherein, the message of the SRB2 transmission includes: rlc layer, MAC layer and PHY layer in the processing that the distributed unit is passed through Processing；The data of DRB transmission include: the place of rlc layer, MAC layer and PHY layer in the processing that the distributed unit is passed through Reason.

5. according to the method described in claim 4, it is characterized in that, the second message includes the configuration parameter of SRB1；Wherein, The message of SRB1 transmission the processing that the distributed unit is passed through include: rrc layer, PDCP layers, rlc layer, MAC layer and The processing of PHY layer.

6. method according to claim 4 or 5, which is characterized in that it is single to receive the centralization in the distributed unit After the second message that member is sent, the method also includes:

The distributed unit sends third message to the terminal device, and the third message is for notifying the terminal device Enable the safeguard protection of SRB1, SRB2 and DRB；

The distributed unit receives the configuration that the terminal device is sent and completes message.

7. according to the method described in claim 6, it is characterized in that, the distributed unit sends third to the terminal device Message includes: that the distributed unit passes through SRB1 or SRB2 to the terminal device transmission third message.

8. method according to claim 6 or 7, which is characterized in that the third message be the distributed unit according to What the second message generated and sent.

9. method according to claim 6 or 7, which is characterized in that receive the terminal device in the distributed unit After message is completed in the configuration of transmission, the method also includes:

The distributed unit sends the 4th message to centralized unit, and the 4th message is used to accuse to the centralized unit Know that the terminal device parameter configuration is completed.

10. according to the method described in claim 9, it is characterized in that, being comprising the distributed unit in the 4th message Following at least one parameter of the terminal equipment configuration: PHY layer parameter, MAC layer parameter, rlc layer parameter, PDCP layer parameter.

11. a kind of communication means characterized by comprising

Centralized unit receives the first message that distributed unit is sent, and the first message is used for logical to the centralized unit Know that the radio resource control RRC connection of terminal device is established to complete；

The centralization unit sends initial message to equipment of the core network, and the initial message is for notifying core net to set for terminal Standby configuration parameter；

The centralization unit receives the context that the equipment of the core network is sent and establishes message；

12. according to the method for claim 11, which is characterized in that comprising the terminal device in the first message Distributed unit described in RRC connection establishment process is following at least one parameter of the terminal equipment configuration: PHY layer ginseng Number, MAC layer parameter, rlc layer parameter, Packet Data Convergence Protocol PDCP layer parameter.

13. method described in 1 or 12 according to claim 1, which is characterized in that receive the core in the centralized unit The context that net equipment is sent is established after message, the method also includes:

The centralization unit sends second message to the distributed unit, and the second message includes the distributed unit The configuration parameter of the one or more Data Radio Bearer DRB established and the configuration parameter of Signaling Radio Bearer SRB2；

Wherein, the message that the SRB2 is transmitted is in the processing that the processing that the centralized unit passes through includes: rrc layer, PDCP layers； The data of the DRB transmission pass through PDCP layers of processing in the centralized unit.

14. according to the method for claim 13, which is characterized in that the second message includes the configuration parameter of SRB1.

15. method described in 3 or 14 according to claim 1, which is characterized in that single to the distribution in the centralized unit After member sends second message, the method also includes:

The centralization unit receives the 4th message that the distributed unit is sent, and the 4th message is used for the concentration Formula unit informs that the terminal device parameter configuration is completed.

16. according to the method for claim 15, which is characterized in that be comprising the distributed unit in the 4th message Following at least one parameter of the terminal equipment configuration: PHY layer parameter, MAC layer parameter, rlc layer parameter, PDCP layer parameter.

17. a kind of communication means characterized by comprising

Terminal device sends radio resource control RRC connection request message to distributed unit；

The terminal device receives the RRC connection that the distributed unit is sent and establishes message；

The terminal device sends RRC connection setup complete message to the distributed unit；

The terminal device receives the third message that the distributed unit is sent, and the third message is for notifying the terminal The safeguard protection of equipment enabling Signaling Radio Bearer SRB1, SRB2 and Data Radio Bearer DRB；

The terminal device sends configuration to the distributed unit and completes message.

18. according to the method for claim 17, which is characterized in that the terminal device sends RRC to distributed unit and connects Connecing request message includes:

The terminal device sends the RRC connection request message to the distributed unit by SRB0, wherein the SRB0 The message of transmission is in the processing that the processing that the terminal device passes through includes: rrc layer, rlc layer, MAC layer and PHY layer；Or packet It includes: the processing of rrc layer, MAC layer and PHY layer.

19. method described in 7 or 18 according to claim 1, which is characterized in that the terminal device receives the distributed unit The RRC connection of transmission establishes message and includes:

The terminal device receives the RRC connection that the distributed unit is sent by SRB0 and establishes message.

20. method described in any one of 7-19 according to claim 1, which is characterized in that the terminal device is to the distribution Formula unit sends RRC connection setup complete message

The terminal device sends the RRC connection setup complete message to the distributed unit by SRB1, wherein described The message of SRB1 transmission includes: rrc layer, PDCP layers, rlc layer, MAC layer and PHY layer in the processing that the terminal device passes through Processing.

21. method described in any one of 7-20 according to claim 1, which is characterized in that the terminal device receives described point Cloth unit send third message include:

The terminal device receives the third message that the distributed unit is sent by SRB1 or SRB2, wherein described The message of SRB2 transmission the processing that the terminal device passes through include: rrc layer, PDCP layers, rlc layer, at MAC layer and PHY layer Reason.

22. method described in any one of 7-21 according to claim 1, which is characterized in that the third message is the distribution Formula unit generates and sends according to second message, and the second message includes one or more that the distributed unit is established The configuration parameter of DRB and the configuration parameter of SRB2；Wherein, the processing that the data of the DRB transmission are passed through in the terminal device It include: the processing of PDCP layers, rlc layer, MAC layer and PHY layer.

23. a kind of distributed unit characterized by comprising

Receiving unit, the radio resource control RRC connection request message sent for receiving the terminal device；

Transmission unit establishes message for sending RRC connection to the terminal device；

The receiving unit is also used to receive the RRC connection setup complete message that the terminal device is sent；And to centralization Unit sends first message, and the first message is used to establish to the RRC connection of the centralized unit notice terminal device At；

24. distributed unit according to claim 23, which is characterized in that

The receiving unit is also used to send the RRC connection to the terminal device by Signaling Radio Bearer SRB0 and establish Message；

Processing unit is handled for establishing message to the RRC connection；Wherein, the RRC connection establishes message described The processing that processing unit passes through includes: the processing of rrc layer, rlc layer, MAC layer and PHY layer；Or including rrc layer, MAC layer and The processing of PHY layer.

25. the distributed unit according to claim 23 or 24, which is characterized in that

Processing unit, in the RRC of terminal device connection establishment process, be the terminal equipment configuration with down toward Few a kind of parameter: PHY layer parameter, rlc layer parameter, MAC layer parameter, Packet Data Convergence Protocol PDCP layer parameter；Described first Message includes above-mentioned parameter.

26. the distributed unit according to any one of claim 23-25, which is characterized in that

The receiving unit is also used to receive the second message that the centralized unit is sent, and the second message includes distribution The configuration parameter for the one or more Data Radio Bearer DRB that formula unit is established and the configuration parameter of SRB2；

Processing unit is also used to handle the data that the SRB2 and DRB is transmitted；

Wherein, the message of the SRB2 transmission includes: rlc layer, MAC layer and PHY layer in the processing that the processing unit passes through Processing, the data of DRB transmission include: the processing of rlc layer, MAC layer and PHY layer in the processing that the processing unit passes through.

27. distributed unit according to claim 26, which is characterized in that the second message includes that the configuration of SRB1 is joined Number；Wherein, the message of the SRB1 transmission includes: rrc layer, PDCP layers, rlc layer, MAC in the processing that the processing unit passes through The processing of layer and PHY layer.

28. the distributed unit according to claim 26 or 27, which is characterized in that

The transmission unit is also used to send third message to the terminal device, and the third message is for notifying the end The safeguard protection of end equipment enabling SRB1, SRB2 and DRB；

The receiving unit is also used to receive the configuration that the terminal device is sent and completes message.

29. distributed unit according to claim 28, which is characterized in that

The transmission unit is also used to unit by SRB1 or SRB2 and sends the third message to the terminal device.

30. the distributed unit according to claim 28 or 29, which is characterized in that

The transmission unit is also used to send the third message that the processing unit is generated according to the second message.

31. the distributed unit according to claim 28 or 29, which is characterized in that

The transmission unit is also used to send the 4th message to centralized unit, and the 4th message is used for the centralization Unit informs that the terminal device parameter configuration is completed.

32. distributed unit according to claim 31, which is characterized in that single comprising the processing in the 4th message Member is following at least one parameter of the terminal equipment configuration: PHY layer parameter, rlc layer parameter, MAC layer parameter, PDCP layers of ginseng Number.

33. a kind of centralization unit characterized by comprising

Receiving unit, the first message sent for receiving the distributed unit, the first message are used for the concentration Formula unit notifies the radio resource control RRC of the terminal device connects to establish to complete, and the distributed unit is at least to have Lower-level protocols, the access network equipment directly communicated with the terminal device；

Transmission unit, for sending initial message to equipment of the core network, the initial message is for notifying core net to set for terminal Standby configuration parameter；

The receiving unit is also used to receive the context that the equipment of the core network is sent and establishes message；

34. centralization unit according to claim 33, which is characterized in that the centralization unit further include:

Processing unit, for be in the RRC of the terminal device connection establishment process terminal equipment configuration with down toward Few a kind of parameter: PHY layer parameter, rlc layer parameter, MAC layer parameter, Packet Data Convergence Protocol PDCP layer parameter；Described first Message includes above-mentioned parameter.

35. the centralized unit according to claim 33 or 34, which is characterized in that

The transmission unit, is also used to send second message to the distributed unit, and the second message includes the distribution The configuration parameter for the one or more Data Radio Bearer DRB that formula unit is established and the configuration parameter of Signaling Radio Bearer SRB2；

Processing unit is handled for the SRB2 and DRB data transmitted；

Wherein, the message of SRB2 transmission includes: the processing of rrc layer, PDCP layers in the processing that the processing unit passes through；Institute The data for stating DRB transmission pass through PDCP layers of processing in the processing unit.

36. centralization unit according to claim 35, which is characterized in that the second message includes that the configuration of SRB1 is joined Number.

37. the centralized unit according to claim 35 or 36, which is characterized in that

The receiving unit, is also used to receive the 4th message that the distributed unit is sent, and the 4th message is used for institute It states centralized unit and informs that the terminal device parameter configuration is completed.

38. the centralized unit according to claim 37, which is characterized in that

The processing unit is also used to following at least one parameter for the terminal equipment configuration: PHY layer parameter, rlc layer ginseng Number, MAC layer parameter, PDCP layer parameter；4th message includes above-mentioned parameter.

39. a kind of terminal device characterized by comprising

Transmission unit, for sending radio resource control RRC connection request message to distributed unit；

Receiving unit establishes message for receiving the RRC connection that the distributed unit is sent；

The transmission unit is also used to send RRC connection setup complete message to the distributed unit；

The receiving unit is also used to receive the third message that the distributed unit is sent, and the third message is for notifying The terminal device enables the safeguard protection of Signaling Radio Bearer SRB1, SRB2 and Data Radio Bearer DRB；

The transmission unit is also used to send configuration to the distributed unit and completes message.

40. terminal device according to claim 39, which is characterized in that

The transmission unit is also used to send the RRC connection request message to the distributed unit by SRB0；

Processing unit, the message for transmitting to the SRB0 are handled；Wherein, the message of the SRB0 transmission is at the place The processing that reason unit passes through includes: the processing of rrc layer, rlc layer, MAC layer and PHY layer；It or include: rrc layer, MAC layer and PHY The processing of layer.

41. the terminal device according to claim 39 or 40, which is characterized in that

The receiving unit is also used to receive the RRC connection that the distributed unit is sent by SRB0 and establishes message.

42. the terminal device according to any one of claim 39-41, which is characterized in that

The transmission unit is also used to send the RRC connection setup complete message to the distributed unit by SRB1；

Processing unit, the message for transmitting to the SRB1 are handled；Wherein, the message of the SRB1 transmission is at the place The processing that reason unit passes through includes: rrc layer, PDCP layers, the processing of rlc layer, MAC layer and PHY layer.

43. the terminal device according to any one of claim 39-42, which is characterized in that

The transmission unit is also used to receive the third message that the distributed unit is sent by SRB1 or SRB2；

Processing unit, the message for transmitting to the SRB2 are handled；Wherein, the message of the SRB2 transmission is at the place The processing that reason unit passes through include: rrc layer, PDCP layer, rlc layer, MAC layer and PHY layer handle.

44. the terminal device according to any one of claim 39-43, which is characterized in that

The transmission unit is also used to send the third message that processing unit is generated according to second message, and described second disappears The configuration parameter for one or more DRB that breath is established comprising the distributed unit and the configuration parameter of SRB2；

The processing unit, for handling the message of the DRB and SRB2 transmission；Wherein, the data of the DRB transmission In the processing that the processing that the processing unit passes through includes: PDCP layers, rlc layer, MAC layer and PHY layer.

45. a kind of computer readable storage medium, including instruction, when run on a computer, so that computer executes such as Method described in any one of claim 1-22.