CN1788463A

CN1788463A - Method for realizing distinguishing service code-point in UMTS radio access network (RAN) based on IP

Info

Publication number: CN1788463A
Application number: CNA038266970A
Authority: CN
Inventors: 刘晟; 赵柏峻; 胡军
Original assignee: UTStarcom China Co Ltd
Current assignee: UTStarcom China Co Ltd
Priority date: 2003-07-07
Filing date: 2003-07-07
Publication date: 2006-06-14
Also published as: WO2005004409A1; AU2003255071A1

Abstract

A method is provided for achieving differentiated service code point tag based on IP in Universal Mobile Telecommunications System (UMTS) Radio Access Network (UTRAN), the Core Network (CN) in the UMTS connects with UTRAN via Iu interface, UTRAN connects with each radio terminal equipment (UE) via Uu interface, several radio network controllers (RNC) connect with each other via Iur interface, each RCN connects with one or more node B (Node B) via Iub inteface, wherein the methode includes the steps of: differentiated service code point (DSCP) value of IP packet of specific frame protocol (FP) data frame out of the opposite interface of the UTRAN edge node is determined; the DSCP value is distributed to the UTRAN edge node corresponded to specific FP; the DSCP marking operation of IP packet of specific FP data frame corresponded to the DSCP value is accomplished by the edge node based on the DSCP value. Means is also provided for achieving the above DSCP marking operation. The DSCP marking operation is processed in the present invention combined with correlative QoS and the radio resource information, QoS and the capacity factor of the radio resource are optimized.

Description

Method for realizing distinguishing service code-point in UMTS radio access network (RAN) based on IP

UMTS wireless access networks based on I P（RAN in)

Realize the method and technology field of Differentiated Services code-point mark

Present invention relates in general to UMTS (UMTSs）Middle guaranteed qos (service quality）Technology, more particularly to when in the UMTS wireless access networks transmitted based on IP（IJTRAN application division service in)（When DiffServ) realizing that QoS ensures, pass through radio network controller（RNC) and control node B (Node B) realize related uplink IP Fen Group classification with Differentiated Services code-point（DSCP) the Signalling method of mark.Background technology

UMTS (UMTSs）System is the 3-G (Generation Three mobile communication system) that wireless technology uses WCDMA, and its standardization effort is by 3GPP (third generation collaborative projects）Tissue is completed, and has up to the present had four versions, i.e. Release 99, Release 4, Release 5 and Release 6 known to us.R5 versions are full IP (or full packetizing）First version, improvement in terms of wireless access network includes following aspect：Propose high-speed downlink packet access HSDPA technology so that downstream rate can reach 8-10Mbps, substantially increase the efficiency of air interface；Iu, Iur, Iu interface add the optional transmission means based on IP so that wireless access network realizes IPization.

In the UMTS (UMTSs shown in Fig. 1）In network architecture, core net（CN) 1 passes through Iu interfaces and UTRAN (wireless access networks）2 are connected, wireless access network（UTRAN) 2 pass through Uu interfaces and UE (user equipmenies）6 are connected.Fig. 2 further illustrates UTRAN network structure, wherein, radio network controller（RNC) 3 are connected by Iu-CS interface with circuit switching (CS) domain of core net 1, are exchanged by Iu-PS interface with the Fen Group of core net 1（PS ) Domain is connected, radio network controller（RNC) then it is connected by Iur interfaces between 3, a R C is connected with one or more node B (Node B) 4 by Iub interfaces.One node B (Node B) 4 includes one or more cells 5, and cell 5 is the elementary cell of UE wireless access.RNC is generally completed the PDCP (PDCPs in Radio interface protocols）, RLC (wireless spread-spectrum technologies）、 MAC

(medium education）Etc. function, and the physical layer function in Radio interface protocols is completed by Node B.In addition, due to IJE mobility, one UE radio bearer can be connected by a control RNC (CRNC) through Iur interfaces with source RNC (SRNC), and at this moment the CRNC is referred to as Drift Radio Network Controller (DRNC).

Fig. 3 show UTRAN Interface Protocol Architecture schematic diagrames, it can be seen that, UTRAN interface protocols are divided into wireless network layer and transport network layer in the horizontal direction, control plane, two protocol stacks of user plane are divided into vertical direction, the transmission network control plane of controlling transmission Internet is additionally included.Control plane protocol package contains NBAP

(node B application obscure portions）, RANAP (wireless access network application obscure portions）With RNSAP (Radio Network Subsystem Application Parts）Signaling bear Deng application protocol and for transmitting application protocol.User-plane protocol includes the Deta bearer that data flow and data flow are used, and data flow typically passes through the Frame Protocol on interface（FP) transmit.In Release 5 UMTS wireless access networks, when transport network layer uses IP RAN

(the wireless access network transmitted based on IP）During technology, it is not necessary to transmission network control plane.

Fig. 4 A-4C give Iu, Iur based on IP RAN technologies, Iub interface user-plane transmissions network layer protocol stack in Release 5 UMTS.Wherein, Fig. 4 A show that RTP, UDP represent RTP, UDP respectively in Iu-CS interface transport network layer protocol stack, figure；Fig. 4 B show that GTP-U represents user plane GPRS tunnel protocols in Iu-PS interface transport network layer protocol stack, figure；Fig. 4 C show Iur/Iub interface transport network layer protocol stacks.In user plane wireless network layer, Iu interfaces are Iu UP (user planes）Agreement, Iur/Iub interfaces for respectively with Corresponding FP (the Frame Protocols of each transmission channel）Data framing protocol.Fig. 5 A-5B give Iu, Iur, lub Interface Controller plane protocol stack based on IP RAN technologies in Release 5 UMTS.Wherein, Fig. 5 A show lub Interface Controller plane protocol stacks, Fig. 5 B show that SCCP, M3UA, SCTP represent SCCP, SS7 MTP3 user adaptation layers and SCTP respectively in Iu/Iur Interface Controller plane protocol stacks, figure.The wireless network layer application protocol of Iu/Iur/Iub interfaces is respectively RANAP (wireless access network application obscure portions）, RNSAP (Radio Network Subsystem Application Parts）With NBAP (node B application obscure portions）.About the detailed description of above-mentioned UTRAN interface protocols, 3GPP TS25.4xx serial protocols documents are may be referred to.

It can see from above-mentioned Fig. 4 A-4C and Fig. 5 A-5B, Iu, Iur, lub Interface Controller plane and user plane are all based on IPv6 IP networks in transport network layer in IP RAN（IPv4 is optional IP version）, according to TS25.414, TS25.426, the agreement such as TS25.422, TS25.432, Iu, Iur, lub interface transport network layer are both needed to support Differentiated Services code-point（DSCP mark), to support to be based on DiffServ (Differentiated Services in IP RAN）QoS (service quality）Guarantee technology.

Cylinder will be introduced below used in IP network based on Differentiated Services（DiffServ QoS technology).IETF (internet engineering task groups）The IP QoS of proposition mainly include integrated service（IntServ) and（DiffServ) two major class, wherein DiffServ are because of its good scalability, it is considered to be solve the problems, such as the most promising technologies of IP network QoS.

The basic thought of Differentiated Services is that according to quality of service requirement the data flow of user is come into divided rank, the data flow of any user can be freely accessible to network, but when congestion occurs in network, the high data flow of the rank data flow lower than rank when queuing up and taking resource has higher priority.Distinguish clothes and only promise to undertake relative service quality, without promising to undertake specific Service Quality Metrics to any user.Under differentiation mechanisms, user and net Need to decide through consultation grade of service contract in advance between network administrative department（), SLA according to SLA_:The data flow of user is endowed a specific priority level, when data flow is by network, and router can use corresponding mode（Referred to as per hop behavior " PHB ") carry out Fen Group in processing stream.Differentiated Services only include the business-level of limited quantity, and the quantity of status information is few, therefore realize that simply autgmentability is preferable.

In DiffServ technologies, network edge node is to being classified and being marked DSCP, and intermediate node is then carried out " per hop behavior " in classification transmission according to DSCP value to packet（PHB ) .In IP networks, domain used in DSCP, the TOS (service types in IPv4 in as IP）Domain, in ipv 6 traffic flow types in as IP（Traffic Class) domain, wherein, IPv6 traffic flow types length of field is 8 bits, and it is 6 bits that IPv4 TOS domains, which remove the actual use length of two reserved bits,.

In DiffServ, PHB, which is divided into, to do one's best（BE) PHB, rapid forwarding（EF) PHB and ensure forwarding（AF) the classes of PHB tri-, as shown in Fig. 6.Wherein, BE PHB classes Fen Group need not be handled especially, therefore be transmission service as possible；Packet labeled as EF should be forwarded with minimal time delay, and packet loss rate also should be very low；AF PHB are subdivided into some subclasses, are represented with AFxy, and wherein x is AF classifications, are accordingly the different queue of packet distribution, y represents that the loss priority of a Group is other.Same category is that identical X AF Fen Group enter same queue, when network generation congestion Xu Yaos Lost Qi Fen Group, and loss priority is lower in same queue, i.e. the bigger packet of y values is dropped first.It can further be seen that DiffServ different classes of PHB has corresponded to respective DSCP values respectively from Fig. 6, i.e. there are specific mapping relations between DiffServ PHB classifications and DSCP values.

In utran, the IP Fen Group in Iu interface downlinks direction DSCP is to be marked by core net according to the QoS property parameters of institute's requested service, the specific mapping relations of QoS property parameters and DSCP, are configured by operator according to its network configuration, migration efficiency etc..Due to UTRAN and the core net DiffServ that to be two different Domain, and the wireless network layer data flow on lur/Iub interfaces has been totally different from the wireless network layer data flow on Iu interfaces, therefore DSCP values of being classified again to the IP on lur/Iub interfaces and marked are needed in RNC, so as to realize the QoS guarantee to institute's requested service.

As it was previously stated, the FP data frames of lur/Iub interface user plane wireless network layers are corresponding with each transmission channel, in addition to FP data frames, FP Frame Protocols also include band control signaling frame.There is IT data frames corresponding with dedicated transmission channel DCH in lur/Iub interfaces.In addition, in Iur interfaces, the Common transport channel corresponding with FP data frames has the RACH (RACHs of up direction）, CPCH (CPCHs）, and down direction FACH (forward access channels）, DSCH (DSCH Downlink Shared Channels）, HS-DSCH (high speed descending sharing channels）；In Iub interface, the Common transport channel corresponding with FP data frames has RACH, CPCH of up direction and FACH, DSCH. HS- DSCH and PCH (PCHs of down direction）.One FP data frame of Iub interface carries respective physical channel in a TTI (Transmission Time Interval）Interior all transmission blocks；In Iur interfaces, as it was previously stated, the corresponding FP data frames of DCH are identical with Iub interface, but Common transport channel（Except HS-DSCH）A FP data frame carrying MAC layer SDU (service data units）Size and number, depending on the flow control mechanism and concrete implementation used, the size and number of the data cell of FP data frame carryings of the HS-DSCH in lur/Iub interfaces, also depends on used flow control mechanism and concrete implementation.On the detailed description of lur/Iub interface FP data framing protocols, 3GPP TS25.427, TS25.425 and TS25.435 serial protocols document may be referred to.

The corresponding FP data framing protocols of dedicated transmission channel DCH are identical in lur/Iub interfaces, this is due to the corresponding Radio interface protocols functional entitys of the DCH, such as PDCP/RLC/MAC is respectively positioned in SRNC, i.e. DCH FP data frames carrying be the corresponding MAC layer PDU of the DCH (protocol Data Unit, herein As transmission block）, therefore for DCH, DRNC is provided solely for a path, is routed to its Node B controlled by the DCH FP data frames from SRNC are transparent, or on the contrary, is routed to corresponding SRN by the DCH FP data frames from Node B are transparent：.Further, since HS-DSCH part MAC layer function entities MAC-hs is located in Node B, so HS-DSCH FP data framing protocols are the same in Iur/Iub interfaces, DRNC only provides transparent transmission.

Compared with the corresponding FP data framing protocols of DCH, Common transport channel（Except HS- DSCH）Corresponding FP data framing protocols are different in Iur/Iub interfaces, and this is due to that the corresponding MAC layer functional entity MAC-c/sh of Common transport channel is realized in CRNC.Therefore, the corresponding FP data frames carrying of Iur interface public transmission channels is the corresponding MAC layer SDU (service data units of the Common transport channel）, and in the carrying of Iub interface Common transport channel corresponding FP data frames be the corresponding MAC layer PDU of the Common transport channel (protocol Data Unit, referred to herein as transmission block）.Specifically, according to the upstream or downstream direction of data link, the corresponding FP data framing protocols of Common transport channel can be sorted out as follows：

* in up direction, the transmission block of an IT data frame only RACH/CPCH channels comprising some UE of the corresponding lub interfaces of Common transport channel RACH/CPCH, different FP data frames can then correspond to different UE RACH/CPCH channels.After the MAC-c/sh functional units in CRNC, the still only SDU of the RACH/CPCH channels comprising some UE in RACH/CPCH FP data frames on Iur interfaces.But, because MAC-c/sh functional entitys are not present in Node B, therefore, the RACH/CPCH of different user FP data frames are cannot be distinguished by Node B lub interfaces.

* in down direction, the MAC-c/sh SDU of the Τ data frames of the corresponding Iur interfaces of the Common transport channel FACH/DSCH only FACH/DSCH channels comprising some UE, meanwhile, CmCH-PI (the Common transport channel priority indications of 4 bit longs are further comprises in each FACH/DSCH FP data frames）Domain, is used for The priority processing of packet scheduling function in MAC-c/sh.After the MAC-c/sh functional units in CRNC, FACH multiple UE of possible simultaneous transmission in TTI logic channel, and the BCCH (BCCHs produced in CRNC）, CCCH (CCCHs）With CTCH (CTCH Common Traffic Channels）Deng logic channel.UE logic channel, therefore the transmission block of a DSCH of the Iub interface FP data frames only DSCH channels comprising some UE can only be transmitted in a DSCH TTI.The transmission block of PCH in a TTI is contained in PCH FP data frames in down direction, Iub interface, the PCH carries the PCCH (Paging Control Channels produced by CRNC）Logic channel, and the PCCH is carried by the RRC (wireless heterogeneous networks in CRNC）The TYPE I beep-page messages that layer is produced.In addition, in down direction, the JT data frames of a HS-DSCH Iur/Iub interface only include the PDU that some UE MAC-d in SRNC is produced.

As described above, in the UMTS wireless access networks (UTRAN) transmitted based on IP, DSCP is marked by IP network edge nodes, i.e., by RNC and Node B to being classified by the outgoing IP of its Iur/Iub interface and being marked DSCP values.Therefore, for the DSCP marking operations that further analyzing IP network edge node is carried out, following several situations can be divided into according to different network edge nodes and for different interfaces by the data flow gone out by RNC and Node B Iur/Iub interfaces：

The data flow that Node B are externally sent from Iub interface is up direction Iub interface FP data frames.

The data flow that RNC is externally sent from lur interfaces includes：The up DCH FP data frames from Iub interfaces of transparent forwarding；Up RACH/CPCH FP data frames from Iub interfaces, the MAC layer SDU after being handled through MAC-c/sh forms the corresponding up RACH/CPCH FP data frames of lur interfaces；And the down direction lur interface FP data frames for being sent to DRNC that the RNC is produced as SRNC. The data flow that RNC is externally sent from Iub interface includes：The descending DCH/HS-DSCH FP data frames from Iur interfaces of transparent forwarding；Descending DSCH FP data frames from Iur interfaces, the MAC layer SDU after being handled through MAC-c/sh forms the corresponding descending DSCH FP data frames of Iub interface；Descending FACH Γ Ρ data frames from Iur interfaces, are multiplexed to form the descending FACH FP data frames of Iub interface after handling through MAC-c/sh with other logic channels；And the down direction Iub interface FP data frames for being routed directly to Node B produced by the RNC as CRNC.

Fig. 7 show the schematic diagram of IP RAN transmission networks.As shown in the figure, because the transmission network of Iur/Iub interfaces is same IP networks, therefore when RNC marks DSCP in Iur/Iub outgoing port and Node B in Iub outgoing port, IP packets classification and DSCP marks should be carried out using identical strategy.Principle based on DiffServ, the classification that IP is grouped in IP RAN is that the division by carrying out different priorities to the data flow in Iur/Iub interfaces is realized, the priority of data flow in this Iur/Iub interfaces can be according to information related QoS, the RAB provided during RAB (RAB) is set up or is changed by core net QoS property parameters, or the DSCP values of the core net mark from Iu interfaces, and combine the information related to the Radio Resource of the RAB to determine.And there are mapping relations between the priority of the data flow in Iur/Iub interfaces and DiffServ PHB classifications.Above in conjunction with described in Fig. 6, there is also specific mapping relations between DiffServ PHB classifications and DSCP values.Thus it is possible to obtain the priority and Differentiated Services code-point of the data flow in Iur/Iub interfaces（DSCP the mapping relations between), and this mapping relations can be configured in implementing by Virtual network operator according to specific network configuration and migration efficiency.Therefore, in the QoS property parameters and wireless network resource according to RAB, and using unified priority policy determine corresponding data frame IP packet priority after, it is possible to the DSCP values of respective packets are determined according to the specific mapping relations of packet-priority and DSCP.Once completed by IP network fringe node according to the DSCP values to the DSCP marking operations of respective packets, then mean intermediate node can according to this The DSCP corresponding priority of value is carried out " per hop behavior " in classification transmission to respective packets（), PHB so as to realize the optimization utilized to QoS and wireless network resource.

, can be in the UMTS wireless access networks transmitted based on IP according to above-mentioned analysis（UTRAN following several situations are summarized as to the DSCP marks that the IP Fen Group gone out via IP network fringe node Iub/Iur interfaces are carried out in)：

1st, in the IP Fen Group gone out via RNC lub interfaces, the down direction lub interface FP data frames for being routed directly to Node B produced to the RNC as CRNC, due to the completely known RABs corresponding with such FP data frames of the RNC（RAB QoS) and the relevant information of Radio Resource, therefore the IP for carrying such FP data frames can be classified using unified priority policy and DSCP marks.The descending DCH/HS- DSCH FP data frames from lur interfaces to needing transparent forwarding, and the lub interface DSCH FP data frames formed after being handled through MAC-c/sh, the DSCP domains that directly can be grouped original from the IP of the lur corresponding data frames entered, are used as the IP Fen Group for the corresponding data frame for being sent to lub interfaces DSCP.Lub interface downlink FACH FP data frames after to being handled through MAC-c/sh, then can cylinder singly using predefined priority carry out DSCP marks, although the DSCP that can also be solved with other method in such a situation marks problem, DSCP marks are carried out using predefined priority and are relatively easy realization.

2nd, in the IP packets gone out via RNC lur interfaces, the down direction lur interface FP data frames for being sent to DRNC produced to the RNC as SRNC, due to the completely known RABs corresponding to such FP data frames of the RNC QoS and the relevant information of Radio Resource, therefore the IP for carrying such I data frames can be classified using unified priority policy and DSCP marks.The up DCH FP data frames from lub interfaces to needing transparent forwarding, can be with the original IP points of Group from the lub corresponding FP data frames entered of direct copying DSCP domains, the DSCP being grouped as the IP for the corresponding data frame for being sent to lur interfaces.Because MAC-c/sh functions are real Body is not present in Node B, the lub interfaces caused in Node B cannot be distinguished by the RACH/CPCH FP data frames of different user, therefore the up RACH/CPCH FP data frames of lur interfaces to being formed after being handled through MAC-c/sh, two ways can be taken to determine priority, one is user is not made a distinction still and using with the predefined priority of lub interface RACH/CPCH FP data frame identicals, the second is distributing different priority according to the difference of QoS demand to the RACH/CPCH FP data frames of the lur interfaces of different user.Obviously, the second way is more effective for optimization QoS and Radio Resource utilization rate, but, this mode has difficulties in specific implementation, because in current 3GPP agreements, DRNC can not know RAB corresponding with RACH/CPCH FP data frames QoS and wireless resource information.

3rd, in the data flow that Node B lub interfaces are externally sent, to the RACH/CPCH I data frames of up direction, because Node B cannot be distinguished by the RACH/CPCH FP data frames of different user, therefore predefined priority can be used.And to the DCH data frames of up direction, although Node B can distinguish the DPCH of different user, but in current 3GPP agreements, because Node B can not know its corresponding RAB QoS and Radio Resource relevant information, accordingly, it is difficult to carry out classification and the DSCP marks of effective IP packets according to priority policy unified UTRAN.The content of the invention

It was found from being analyzed more than, for the lub interfaces from Node B RACH/CPCH FP data frames handled through MAC-c/sh after the up RACH/CPCH FP data hardwoods of lur interfaces that are formed, and for the up DCH FP data hardwoods of the lub interfaces via Node B, prior art is difficult to it is carried out meeting optimization QoS and effective IP packets classification of wireless resource utility efficiency principle according to unified priority policy and DSCP is marked.

Therefore, the purpose of the present invention be exactly overcome upper fan of the prior art not enough there is provided It is a kind of in the UMTS transmitted based on IP（UMTS) wireless access network

(UTRAN) Differentiated Services code-point is realized in（DSCP) the method for mark, wherein UMTS includes core net（CN), wireless access network（) and multiple wireless terminal devices UTRAN（UE), wherein, CN is connected by lu interfaces with UTRAN, and UTRAN is connected by Uu interfaces with each UE, in UTRAN include multiple radio network controllers（RNC), each RCN is interconnected by Iur interfaces, and each of which RCN is connected by Iub interface with one or more node B (Nobe B), one Node B includes one or more cells, the cell is the elementary cell of UE wireless access, and this method comprises the following steps：

It is determined that the specific hardwood agreement gone out from the corresponding interface of UTRAN fringe nodes

(FP) the Differentiated Services code-point of the IP packets of data frame（DSCP) value；

The DSCP values of determination are distributed to UTRAN fringe nodes corresponding with the specific FP data frames；

The IP Fen Group of pair specific FP corresponding with DSCP values DSCP marking operations are completed according to the DSCP values received by the UTRAN fringe nodes.

The present invention also provides a kind of in the UMTS transmitted based on IP (UMTS) wireless access network（UTRAN it is used for the device for realizing Differentiated Services code-point (DSCP) mark in), the wherein UMTS includes core net（), CN wireless access network（) and multiple wireless terminal devices UTRAN（UE), wherein, CN is connected by lu interfaces with UTRAN, and UTRAN is connected by Uu interfaces with each UE, in UTRAN include multiple radio network controllers（RNC), each RCN is interconnected by Iur interfaces, and each of which RCN is connected by Iub interface with one or more node B (Nobe B), one Node B includes one or more cells, the cell is the elementary cell of UE wireless access, and the device includes

DSCP value determining units, for determining to connect from the corresponding of UTRAN fringe nodes The outgoing specific Frame Protocol of mouth（FP) the IP Fen Group of data frame DSCP values；

DSCP value Dispatching Unit, for the DSCP values of determination to be distributed into UTRAN fringe nodes corresponding with the particular data frame；

DSCP marks, which are pushed violently, makees unit, for according to the DSCP marking operations that DSCP values complete the IP Fen Group of pair be confused specific FP corresponding with the DSCP values of being confused received.

According to the above-mentioned Signalling method and related device for being used to realize that DSCP marks push work violently of the present invention, due to combining the QoS property parameters relevant with RAB and specific wireless resource information, DSCP marking operations are carried out to the IP packets of specific FP data frames using priority policy unified UTRAN, therefore advantageously ensure that UMTS (UMTSs）In service quality（), QoS so as to improve the utilization ratio to wireless network resource.Brief description of the drawings

The embodiment of the invention described above is described in detail with reference to each accompanying drawing, the purpose of the present invention, feature and beneficial effect will be apparent from.In figure：

Fig. 1 is UMTS (UMTSs）Network architecture simplified schematic diagram；

Fig. 2 is the UMTS wireless access networks shown in Fig. 1（) and core net UTRAN（CN more detailed network structure between)；

Fig. 3 is the schematic diagram of UTRAN Interface Protocol Architectures；

Fig. 4 A-4C be Release 5 UMTS in based on IP RAN (based on IP transmit wireless access network）The schematic diagram of Iu, Iur of technology, Iub interface user plane transport network layer protocol stack；

Fig. 5 A-5B be Release 5 UMTS in the Iu based on IP RAN technologies, Iur, the schematic diagram of Iub interface control plane protocol stack；

Fig. 6 is IETF (internet engineering task groups）The Differentiated Services of proposition (DiffServ) " the per hop behavior of IP QoS technology Plays（PHB) " with Differentiated Services code-point（DSCP) the correspondence graph of recommended value；

Fig. 7 is the simplified schematic diagram of IP RAN transmission networks；

Fig. 8 is a specific embodiment according to the present invention, completes the schematic flow diagram of the method for the classification and DSCP marks of the IP Fen Group to carrying DCH FP data frames in Node B Side Iub interface up direction by RNSAP/NBAP signalings by SRNC；

Fig. 9 is a specific embodiment according to the present invention, completes the schematic flow diagram of the method for the classification and DSCP marks of the IP packets of the up RACH/CPCH FP data frames of Iur interfaces to being formed after being handled through MAC-c/sh by R SAP signalings by SRNC.Embodiment

Major part in the figures above hereinbefore has been carried out introducing, and retouches the specific embodiment that fan carries out the method for DSCP marks according to the IP Fen Group of the Γ Τ data frames up to two kinds of the present invention mainly in combination with Fig. 8-Fig. 9 below.

Fig. 8 shows the schematic flow diagram completed by SRNC by RNSAP/NBAP signalings in Node B sides Iub interface up direction to the IP for the carrying DCH FP data frames classification being grouped and the DSCP method marked according to the present invention.As illustrated, in step S10, up direction first by SRNC set up or change according to RAB during by core net（CN) the RAB provided QoS property parameters, with reference to specific wireless resource information, using the priority policy that UTRAN is unified, determine that Node B sides Iu interfaces up direction carries the IP Fen Group of corresponding DCH FP data frames DSCP values.Then, in step S20, the DSCP values are distributed to the Node B belonging to it by SRNC by RNSAP/NBAP signalings.So as to which the DSCP values then specified in step S30, the Node B according to SRNC, by distinguishing different uplink special physical channels, complete the IP packets DSCP of the corresponding DCH FP data frames of carrying mark behaviour Make.

A kind of specific implementation of the method marked in Node B sides Iub interface up direction to the classification and DSCP that carry the IP Fen Group of DCH FP data frames in fan Fig. 8 is retouched below.First it is to be appreciated that the RNSAP/ BAP message related with modification to DCH foundation initiated by SRNC mainly has：RADIO LINK SETUP REQUEST (ask by wireless link）, RADIO LINK ADDITION REQUEST (Radio Link increase request）, RADIO LINK RECONFIGURATION PREPARE (wireless link reconfigured preparations）, RADIO LINK RECONFIGURATION REQUEST (wireless link reconfigured requests）.In these message, comprising information unit（IE) " RL Information " (wireless link information）, the information unit include the various parameters related to the Radio Link, mark, respective physical channel timing information, Initial Trans, diversity mode, the compact model frame structure information of such as Radio Link.The parameter that the information unit is included, in different message and different application protocols

(RNSAP/NBAP) different in, its detailed definition may be referred to 3GPP agreement TS25.423 and TS25.433.

In order to support that the classification and DSCP that carry the IP packets of DCH FP data frames are marked in Node B sides Iub interface up direction, in the information unit " RL Information " of above-mentioned RNSAP/NBAP message, increase a new IE:

" DiffServ Code Point " .IE is multi-level, the IE newly increased in RNSAP/NBAP signalings: " DiffServ Code Point " IE :

The next stage IE of " RL Information ".The newly-increased IE length is a 8 Wei Group

(Octet), for indicating that the Node B sides Iub interface up direction of SRNC determinations carries the IP Fen Group of the DCH FP data frames of Radio Link DSCP values.So, when SRCN and Node B are joined directly together, the SRNC can be by NBAP above-mentioned message, in the wireless link or timing again, QoS property parameters and wireless resource information according to known to SRNC, using the priority plan that UTRAN is unified Slightly, determine that Node B sides lub interface up directions carry the DSCP values of the IP packets of the DCH FP data frames of the Radio Link and notify Node B, Node B can then distinguish the Radio Link, and classification and DSCP marking operation of the completion to the IP Fen Group of the corresponding DCH FP data frames of carrying by different physical channels.When SRNC is connected by DRNC with Node B, then the DSCP values can be sent by RNSAP above-mentioned message and give D NC, and the IE for indicating the DSCP values then by corresponding NBAP message is forwarded to Node B by DRNC when handling above-mentioned RNSAP message.

The schematic flow diagram that the classification and DSCP that the IP for the up RACH/CPCH FP data frames of Iur interfaces that Fig. 9 is formed after showing the auspicious processing through MAC- c/sh of RACH/CPCH FP data completed by SRNC by RNSAP signalings to the lub interfaces from Node B according to the present invention is grouped are marked.As shown in the figure, in step S100, the RAB provided in up direction first by SRNC according to RAB foundation or during changing by core net QoS property parameters, with reference to specific wireless resource information, using the priority policy that UTRAN is unified, determine that DRNC sides Iur interface up directions carry the DSOP values of the IP packets of certain UE RACH/CPCH FP data frames.Then, in step S110, the DSCP values are distributed to corresponding DRNC by SRNC by RNSAP signalings.So as to, in step S120, the DSCP values that the DRNC is then specified according to SRNC, by distinguishing different UE up RACH/CPCH channels, the IP for completing the corresponding RACH/CPCH FP data frames of carrying is grouped DSCP marking operation.

Being completed by SRNC by RNSAP signalings to the IP Fen Group of the up RACH/CPCH FP data frames of the Iur interfaces classification formed after being handled through MAC-c/sh and a kind of specific implementation of the method for DSCP marks in Fig. 9 is described below.Different priorities are distributed for the QoS demand difference of the data frame of different user in order to realize to take the up RACH/CPCH FP data frames of Iur interfaces formed after handling through MAC-c/sh, (public transmission channel resource please in RNSAP message " COMMON TRANSPORT CHANNEL RESOURCES REQUEST " Ask）One new IE of middle increase, i.e., " DiffSery Code Point ", the length of the IE is 8 hytes（), Octet the DRNC sides lur interface egress end mouthpieces for indicating to be determined by SRNC carry the IP Fen Group of the RACH/CPCH FP data frames of UE DSCP values.Below by being further described in DRNC to the use of the IE.

The radio network temporary identifier d-RNTI for the UE that DRNC is distributed is carried in current RNSAP message " COMMON TRANSPORT CHANNEL RESOURCES REQUEST ".And have a UE-W domain in uplink common channel RACH/CPCH MAC header, according to different settings, the domain can be u-RNTI (by the SRNC UE distributed radio network temporary identifier s-RNTI together with SRNC group identifier into）, or c-RNTI is (by the CRNC UE distributed radio network temporary identifier）.Because the DRNC as CRNC preserves s-RNTI, d-RNTI and c-RNTI of Ε corresponding relation, therefore, after the MAC-c/sh processing in DRNC, DRNC is that can distinguish the UE belonging to the SDU of the RACH/CPCH, so, DRNC can be according to the corresponding IE ViffServ Code Point of the UE carried in R SAP message " COMMON TRANSPORT CHANNEL RESOURCES REQUEST "ⁿ, complete DRNC Side lur interface egress end mouthpieces carry the UE RACH/CPCH FP data frames IP be grouped DSCP values mark.

It should illustrate herein, although being, according to the known QoS property parameters related to specific FP and wireless resource information, to determine DSCP values corresponding with the FP data frames using priority policy unified UTRAN and notify network of relation fringe node DRNC or Node B to push work violently to complete DSCP marks by it by SRNC in above-mentioned specific embodiment.But, other can know that the UMTS network component units of relevant QoS attributes parameter and wireless resource information may also be used for determining corresponding DSCP values.In addition, although the DSCP values that method of the invention is had determined by RNC is distributed using RNSAP NBAP signalings, still, the present invention can also use its other party Formula, such as distributes corresponding DSCP values by user plane in-band signaling mode.

It should be understood that, in the UMTS wireless access networks (UTRAN) transmitted based on IP, as long as at least applying fan's two kinds of DSCP mark pushes one kind in the signaling realizing method of work violently, it is possible to reach the beneficial effect of optimization QoS and wireless network resource.

Although specific retouch above is confused the Signalling method that the DSCP marks for referring to that the present invention is realized using corresponding control software push work violently, however, it will be apparent that can also realize that this DSCP marks push the process of work violently by many known hardware devices in this area.Therefore, the present invention also provides a kind of in the UMTS transmitted based on IP (UMTS) wireless access network（UTRAN it is used for the device for realizing Differentiated Services code-point (DSCP) mark in), by the DSCP value determining units in the device, DSCP values Dispatching Unit and DSCP marks are pushed violently and make the DSCP marking operations that unit completes the IP packets to specific FP jointly.In a preferred embodiment of this device that the present invention is provided, such as shown in Fig. 2 the DSCP values determining unit and Dispatching Unit are source radio network controllers（SRNC) 3, the DSCP marking operations unit is the network edge node drift network controller in UTRAN corresponding with the specific FP（) and/or node B (Node B) 4 DRNC.

Above in conjunction with specific embodiments to IP-based UMTS wireless access networks of the invention（RAN realize that the Signalling method and related device of Differentiated Services code-point mark have carried out retouching fan in detail in); but it should be understood by those skilled in the art that; on the premise of the protection domain limited by appended claims is not departed from; various modification and variation can also be made to the present invention, these modification and variation should be contemplated as falling with protection domain of the presently claimed invention.

Claims

Claim

1st, it is a kind of in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN Differentiated Services code-point is realized in)（DSCP) the method for mark, wherein UMTS includes core net（CN), wireless access network（) and multiple wireless terminal devices UTRAN（UE), wherein, CN is connected by Iu interfaces with UTRAN, and UTRAN is connected by Uu interfaces with each UE, in UTRAN include multiple radio network controllers（RNC), each RCN is interconnected by Iur interfaces, and each of which RCN passes through Iub interfaces and one or more node B

(Nobe B) is connected, and a Node B includes one or more cells, and the cell is the elementary cell of UE wireless access, the method is characterized in that comprising the following steps：It is determined that the Differentiated Services code-point of the IP packets from outgoing specific Frame agreements (FP) data frame of the corresponding interface of UTRAN fringe nodes（DSCP) value；

The DSCP values of determination are distributed to UTRAN fringe nodes corresponding with the specific FP data frames；

The DSCP marking operations that the IP for completing pair specific FP corresponding with the DSCP values according to the DSCP values received by the UTRAN fringe nodes is grouped.

2nd, it is as claimed in claim 1 in UMTS (UMTS) wireless access network transmitted based on IP（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：It is described to determine specific Frame Protocol（FP) the Differentiated Services code-point of the IP packets of data frame（DSCP) the step of value is according to radio bearer corresponding with the specific FP data frames（RAB service shield amount)（QoS) property parameters, with reference to specific wireless resource information, are completed using priority policy unified UTRAN.

3rd, it is as claimed in claim 1 or 2 in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN Differentiated Services code-point mark is realized in) The method of note, it is characterised in that：It is confused the specific Frame Protocol of determination（FP) the IP Fen Group of data frame Differentiated Services code-point（DSCP) the step of value and be by source radio network controller the step of distribute the DSCP values of the determination（SRNC) complete.

4th, it is as claimed in claim 3 in UMTS (UMTS) wireless access network transmitted based on IP（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：Described UTRAN fringe nodes are floating radio network controllers（), DRNC the specific Frame Protocol（FP) data frame is uplink random access channel/CPCH (RACH/CPCH) FP data frames of the lub interfaces from node B (Node B) through the medium education functional entity in DRNC（MAC-c/sh the up RACH/CPCH FP data frames of lur interfaces formed after) handling, the source radio network controller（SRNC) determine after DSCP values corresponding with the up RACH/CPCH FP data frames, pass through Radio Network Subsystem Application Part（RNSAP) the DSCP values are distributed to be confused DRNC by signaling, so that the DRNC is according to the DSCP values received, the different wireless terminal device by distinguishing（UE the DSCP marks that RACH/CPCH) completes the IP packets of the corresponding RACH/CPCH Γ Ρ data frames of carrying push work violently.

5th, it is as claimed in claim 3 in UMTS (UMTS) wireless access network transmitted based on IP（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：Described UTRAN fringe nodes are node B (Node B), are confused specific Frame Protocol（FP) data frame is via the up dedicated transmission channel of Node B lub interfaces（DCH) FP data frames, as the Nobe B and the source radio network controller（SRNC) it is joined directly together when connecing, the source is Wu Xian Wang Network controllers（SRNC) determine after DSCP values corresponding with the DCH FP data frames, pass through node B application part（NBAP) the DSCP values are distributed to the Nobe B by signaling, so that the Nobe B are according to the DSCP values received, the different uplink special physical channel by distinguishing, completes the DSCP marking operations of the IP packets of the corresponding up DCH FP data frames of carrying. 6th, it is as claimed in claim 3 in UMTS (UMTS) wireless access network transmitted based on IP（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：The UTRAN fringe nodes being confused are node B (Node B), the specific Frame Protocol（FP) data frame is via the up dedicated transmission channel of Node B Iub interface（DCH) FP data frames, as the Nobe B and the source radio network controller（SRNC floating radio network controller) is passed through（When DRNC) being connected, the SRNC is determined after DSCP values corresponding be confused DCH Γ Ρ data frames, first passes through Radio Network Subsystem Application Part（RNSAP) the DSCP values are distributed to the DRNC by signaling, and then the DRNC passes through node B application part again（NBAP) the DSCP values are transmitted to the Nobe B by signaling, so that the Nobe B are according to the DSCP values received, the different uplink special physical channel by distinguishing, completes the DSCP marking operations of the IP packets of the corresponding up DCH FP data frames of carrying.

7th, it is as claimed in claim 3 in UMTS (UMTS) wireless access network transmitted based on IP（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：The DSCP marking operations as described in above-mentioned claim 4-6 are realized simultaneously.

8th, as described in claim 4 or 7 in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：In network subsystem application obscure portions（RNSAP the message) included " ask by public transmission channel resource（COMMON TRANSPORT CHANNEL RESOURCES REQUEST) " one new information unit of middle increase（IE) " DiffServ Code Point ", the IE is represented by the source radio network controller（SRNC) the network edge node floating radio network controller determined（DRNC) side Iur interfaces egress end mouthpiece carries respective wireless terminal device（UE the uplink random access Gong Fen Group channels of channel/Gong)

(RACH/CPCH) the DSCP values of the IP packets of FP data frames, so that should The DSCP values of the DRCN according to indicated by the IE received by RNSAP signalings completes the DSCP marking operations of the IP packets of the RACH/GPCH FP data frames.

9th, it is as claimed in claim 8 in UMTS (UMTS) wireless access network transmitted based on IP（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：The increased new information unit（IE) " DiffServ Code Point " is 8 hytes.

10th, as any one of claim 5-7 in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：In network subsystem application obscure portions and/or node B application part（RNSAP and/or NBAP) the wireless link of message one request（RADIO LINK SETUP REQUEST), Radio Link increase request

(RADIO LINK ADDITION REQUEST), it is wireless link reconfigured to prepare

(RADIO LINK RECONFIGURATION PREPARE), wireless link reconfigured request（RADIO LINK RECONFIGURATION REQUEST) information unit that each includes（IE) " wireless link information

(RL Information), in increase a new next stage IE " DiffServ Code Point ", next stage IE is represented by the source radio network controller

(SRNC) what is determined is confused the dedicated transmission channel that network edge node Nobe B sides Iub interface up direction carries the Radio Link（DCH) the IP Fen Group DSCP values of FP data frames, so as to DSCP values of the Nobe B according to indicated by the next stage IE received by NBAP signalings, the different uplink special physical channel by distinguishing, completes the IP Fen Group DSCP of the corresponding DCH FP data frames of carrying marking operation.

11st, it is as claimed in claim 10 in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN the method that Differentiated Services code-point mark is realized in), it is characterised in that：The next stage IE " DiffServ Code Point " is 8 hytes. 12nd, it is a kind of in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN it is used to realize Differentiated Services code-point in)（DSCP) the device of mark, wherein UMTS includes core net（), CN wireless access network

And multiple wireless terminal devices (UTRAN)（UE), wherein, CN is connected by Iu interfaces with UTRAN, and UTRAN is connected by Uu interfaces with each UE, in UTRAN include multiple radio network controllers（RNC), each RCN is interconnected by Iur interfaces, and each of which RCN is connected by Iub interface with one or more node B (Nobe B), one Node B includes one or more cells, the cell is the elementary cell of UE wireless access, and the device includes：

DSCP value determining units, for determining from the outgoing specific Frame Protocol of the corresponding interface of UTRAN fringe nodes（FP) the IP Fen Group of data frame DSCP values；

DSCP value Dispatching Unit, for the DSCP values of determination to be distributed into UTRAN fringe nodes corresponding be confused specific FP；

DSCP marking operation units, work is pushed violently for completing the DSCP marks of IP packets of pair specific FP corresponding with the DSCP values according to the DSCP values received.

13rd, it is as claimed in claim 12 in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN it is used to realize Differentiated Services code-point in)

(DSCP) device of mark, it is characterised in that：The DSCP values determining unit is according to radio bearer corresponding with the specific FP data frames（RAB service quality)

(QoS) property parameters, with reference to particular radio resource information, the specific Frame Protocol is determined using priority policy unified UTRAN（FP) the DSCP values of the IP packets of data frame.

14th, as described in claim 12 or 13 in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN it is used to realize Differentiated Services code-point in)（DSCP) the device of mark, it is characterised in that：The DSCP values determining unit and the DSCP values Dispatching Unit are source radio network controllers（SRNC) . 15th, it is as claimed in claim 14 in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN it is used to realize Differentiated Services code-point in)

(DSCP) device of mark, it is characterised in that：The UTRAN fringe nodes being confused are floating radio network controllers（), DRNC the specific hardwood agreement（FP) data frame is uplink random access channel/CPCH of the lub interfaces from node B (Node B)（RACH/CPCH) FP data frames are through the media access function entity in DRNC（MAC-c/sh the up RACH/CPCH FP data frames of Iur interfaces formed after) handling, the DSCP marking operations unit is the DRNC, the source radio network controller（SRNC) determine after DSCP values corresponding with the up RACH/CPCH FP data frames, pass through Radio Network Subsystem Application Part（RNSAP) the DSCP values are distributed to the DRNC by signaling, so that the DRNC is according to the DSCP values received, the different wireless terminal device by distinguishing（UE the DSCP marks that RACH/CPCH) completes the IP packets of the corresponding RACH/CPCH FP data frames of carrying push work violently.

16th, it is as claimed in claim 14 to be used in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN Differentiated Services code-point is realized in)

(DSCP) device of mark, it is characterised in that：Described UTRAN fringe nodes are node B (Node B), the specific Frame Protocol（FP) data frame is via the up dedicated transmission channel of Node B lub interfaces（DCH) FP data frames, it is the fringe node Node B to be confused DSCP value marking operation units, as be confused Nobe B and the source radio network controller（SRNC) it is joined directly together when connecing, the source radio network controller（SRNC) determine and be confused uplink dedicated transmission channel（DCH) after the corresponding DSCP values of FP data frames, node B application part is passed through（NBAP) the DSCP values are distributed to the Nobe B by signaling, so that the Nobe B are according to the DSCP values received, the different uplink special physical channel by distinguishing, completes the DSCP marking operations of the IP packets of the corresponding DCH FP data frames of carrying.

17th, as being used for of being confused of claim 14 is logical in the General Mobile transmitted based on IP Letter system（UMTS) wireless access network（UTRAN the device of Differentiated Services code-point (DSCP) mark is realized in), it is characterised in that：Described UTRAN fringe nodes are node B (Node B), the specific Frame Protocol（FT) data frame is via the up dedicated transmission channel of Node B Iub interface（DCH) FP data frames, the DSCP values marking operation unit is the fringe node Node B, as be confused Nobe B and the source radio network controller（When SRNC) being connected by floating radio network controller (DRNC), the source radio network controller（SRNC) determine and the uplink dedicated transmission channel（DCH) after the corresponding DSCP values of FP data frames, Radio Network Subsystem Application Part is first passed through（RNSAP) the DSCP values are distributed to the DRNC by signaling, then the DSCP values are transmitted to the Nobe B by the DRNC by node B application obscure portions (NBAP) signaling again, so that the Nobe B are according to the DSCP values received, the different uplink special physical channel by distinguishing, completes the DSCP marking operations of the IP packets of the corresponding DCH FP data frames of carrying.

18th, it is as claimed in claim 14 to be used in the UMTS transmitted based on IP（UMTS) wireless access network（UTRAN the device of Differentiated Services code-point (DSCP) mark is realized in), it is characterised in that：Described UTRAN fringe nodes are floating radio network controllers（) and node B (Node B), DRNC the specific Frame Protocol（FP) data frame is uplink random access channel/CPCH of the Iub interface from node B (Node B)（RACH/CPCH) FP data hardwood is through the media access function entity in DRNC（MAC-c/sh the up RACH/CPCH FP data frames of Iur interfaces formed after) handling, and via the up dedicated transmission channel of Node B Iub interfaces（DCH) FP data frames, the DSCP marking operations unit is be confused fringe node DRNC and Node B, so that described device realizes that the DSCP marks for the IP packets to specific FP that the device as described in claim 15-17 is completed push work violently simultaneously.