CN1960302A - Wireless access communication system - Google Patents
Wireless access communication system Download PDFInfo
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- CN1960302A CN1960302A CNA2005101200716A CN200510120071A CN1960302A CN 1960302 A CN1960302 A CN 1960302A CN A2005101200716 A CNA2005101200716 A CN A2005101200716A CN 200510120071 A CN200510120071 A CN 200510120071A CN 1960302 A CN1960302 A CN 1960302A
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Abstract
The system comprises: NodeB+ used for receiving the data from UE and transmitting the received data to the data server UPS through tunnel or IP network after processing by the physical layer and MAC layer; the data server UPS used for making RLC layer process for the data received from NodeB+ and then transmits it to the gateway supporting node through tunnel; the Gate GPRS Supporting Node GPRS (GGSN) used for providing route for the data, and relaying the received data to the external network E-PDN; radio controller (RCS) used for controlling the NodeB+, data server UPS, GGSN and UE.
Description
Technical field
The present invention relates to a kind of new wireless access system of supporting in mobile communication system Long Term Evolution (hereinafter to be referred as the LTE) system configuration that third generation partner plan (hereinafter to be referred as 3GPP) proposes.
Background technology
Existing third generation partner plan (hereinafter to be referred as 3GPP) structure as shown in Figure 1.Be description below to Figure 13 GPP system configuration.
101 subscriber equipmenies (hereinafter to be referred as UE) are the terminal equipments that is used for receiving and sending user data in the staff.
102 base stations (hereinafter to be referred as NodeB) are (to be called for short RNS) in the RNS to be responsible for wireless receiving and the node that sends user data; It by aerial radio wave according to certain form (as air traffic channel, coded system stool etc.) directly and UE communicate, user data from the following network terminal that CRNC transmitted is sent to UE, and the data from UE are forwarded to network terminal by CRNC.Usually, there is 1 to a plurality of sub-districts (hereinafter to be referred as cell) under a NodeB.
103 control radio network controllers (hereinafter to be referred as CRNC) are the radio network controllers of directly controlling NodeB; It is responsible for NodeB and specifically uses which type of form and UE to communicate, and according to the control of following SRNC, the user data that NodeB delivered is forwarded to network terminal by SRNC, and handing to UE from the user data that SRNC transmitted by NodeB.CRNC has " cell management " and " common channel processing " function.
104 service wireless network controllers (hereinafter to be referred as SRNC) are the radio network controllers (hereinafter to be referred as RNC) of control beared information; It is forwarded to following GGSN to the user data from CRNC, and the user data from GGSN is forwarded to CRNC.SRNC has " dedicated channel control ", " to the control of UE ", " broadcast control " " paging management " and functions such as " RRMs of many sub-districts ".
105 gateway general packet radio service (is GPRS hereinafter to be referred as GPRS) support nodes (is GGSN hereinafter to be referred as Gateway GPRS Support Node) and 106 Serving GPRS Support Nodes (hereinafter to be referred as SGSN) provide route for the transmission of data.Wherein, SGSN mainly has " PMM (datagram mobile management) " and functions such as " SM (session managements) ".
107E-PDN is outside public data network, and data source is provided.
The above-mentioned functional module that each network node had can be divided into two classes.Wherein, therefore " dedicated channel processing " and the real transmission that is directly used in user data of " common channel processing " functional module are put into user plane usually; And other be not directly used in transmitting user data as " cell management ", " to the control of UE ", " broadcast control ", " paging management ", " RRMs of many sub-districts ", " PMM " and functional modules such as " SM ", they are mainly used between user equipment (UE) and network aspect different (comprise the different transfer resource of professional request, control with switching etc.) control RAB and being connected also comprises the transparent transmission mechanism of Non-Access Stratum (hereinafter to be referred as NAS).Therefore be put into control plane usually.
In existing systems, UE is delivering data and SRNC by carrying out transfer of data in the air, when communicating by letter, must can carrying out according to certain agreement by CRNC.This agreement is commonly called the Uu interface.Air interface protocol can the branch different levels be developed, and each layer is responsible for different communication functions respectively.
This air interface can be divided into three layers: physical layer (hereinafter to be referred as L1); Data link layer, (hereinafter to be referred as L2); Network layer, (hereinafter to be referred as L3).Wherein, the Layer 2 of the second layer can be subdivided into two sublayers again: " medium access control; (hereinafter to be referred as MAC) " layer and " Radio Link control; (hereinafter to be referred as RLC) " layer, and two functional entitys: " packet data convergence protocol; (hereinafter to be referred as PDCP) " and " control of broadcasting/multicast, (hereinafter to be referred as BMC).”
As previously mentioned, L3 layer and rlc layer are divided into control plane (hereinafter to be referred as Control plane or C-plane) and user plane (hereinafter to be referred as User plane or U-plane) two parts again.PDCP functional entity and BMC functional entity only are present in the user plane.At control plane, three layers are divided into several sublayers.Wherein lowermost layer is Radio Resource control (hereinafter to be referred as RRC), and its high level comprises " mobile management (hereinafter to be referred as MM) ", " calling out control (C) " or the like.
Radio interface protocol architecture as shown in Figure 2.Each module is represented the corresponding protocol example among Fig. 2.The ellipse circle of sublayer interface represents to be used for the Service Access point (hereinafter to be referred as SAP) of end-to-end communication.SAP between MAC and physical layer provides transmission channel.The SAP that RLC and MAC ask provides logic channel.Rlc layer provides three types SAP, corresponds respectively to three kinds of different operator schemes (UM, AM and TM pattern).PDCP and BMC entity conduct interviews by PDCP and BMC SAP.The service that the L2 layer is provided is commonly called radio bearer (hereinafter to be referred as RB).Offer the radio bearer of the control plane of RRC by RLC, be called Signaling Radio Bearer (hereinafter to be referred as signalling radio bearer).At control plane, the interface of the high sublayer of " Duplication Avoidance repeats to avoid " and L3 (CC, MM) is defined by general controls (hereinafter to be referred as GC), notice (hereinafter to be referred as Nt) and special-purpose control (hereinafter to be referred as DC) SAP.
RRC and MAC and RRC and L1 exist control mutual.Same RRC and RLC, RRC and PDCP and RRC and BMC have control interface.These interfaces allow the configuration of RRC control low layer.Therefore, all defined independent control SAP between RRC and each low layer (PDCP, RLC, MAC and L1).The function of control planes such as above-mentioned " cell management ", " to the control of UE ", " broadcast control ", " paging management ", " RRMs of many sub-districts " is controlled by RRC.The RLC sublayer provides the automatic re-send request may (hereinafter to be referred as ARQ) of combining closely with Radio Transmission Technology function.The RLC example of control plane and user plane is as broad as long.
Wherein, media access control sublayer is made up of several different MAC entities, comprises the MAC-d that is used for dedicated channel, the MAC-c/sh of common channel and be the MAC-hs of the professional used channel of high-speed down data.Detailed description and the present invention to these entities do not have direct relation, and in existing technical specification detailed description are arranged, and therefore do not elaborate at this.
Many shortcomings such as existing 3GPP system configuration exists upgradability poor, and call set-up time is long.Such as, when a user attempted to call out another user by existing systems, generally, he approximately needed second more than ten and just can hear the other side's ring-back tone after calling out by intact the other side's telephone number.Can bring very bad sensation to the user like this, reduce user's satisfaction.Therefore 3GPP standardization body is carrying out the standardization effort of LTE, and one of its purpose is exactly to reduce the delay of signaling and transfer of data, the cost that the attenuating system constitutes.
Summary of the invention
The purpose of this invention is to provide a kind of new wireless access system, separate, can reduce the delay of signaling and transfer of data by realizing control plane and the reasonable of user plane.
For realizing the present invention, a kind of wireless access system comprises:
NodeB+, the data of reception UE are passed through the processing of physical layer and MAC layer after tunnel or IP transmission network string are given data server UPS with the data that receive;
Data server UPS will carry out rlc layer from the data that NodeB+ receives and handle, and pass to gateway support node through the tunnel then;
Gateway support node GGSN for the transmission of data provides route, further is transmitted to external network E-PDN with the data that receive;
Wireless controller RCS is used for Node+, data server UPS, gateway support node GGSN and UE are controlled and manage.
The new wireless access system that provides by the present invention, separate by the principle that realizes control plane and user plane, and control plane and the user-plane function level rationally arranging each node and had, can reduce the kind and the quantity of network node, the cost that the reduction system constitutes, and the delay of minimizing signaling and transfer of data, improve user's satisfaction.
Description of drawings
Fig. 1 is existing 3GPP system configuration;
Fig. 2 radio interface protocol architecture figure;
Fig. 3 is new wireless access system;
Fig. 4 is an embodiment who has used the transfer of data of the carrying out from UE to E-PDN of the present invention.
Embodiment
The present invention proposes a kind of new wireless access system, referring to Fig. 3, wherein new data server (hereinafter to be referred as UPS) has been concentrated the function of the user plane that SRNC and SGSN had in the existing system; The function of the certain customers plane of user plane that CRNC has in the existing system and control plane, SRNC with control plane also concentrated in the base station (hereinafter to be referred as NodeB+) that strengthens except the repertoire of base station with existing system; And new wireless controller (hereinafter to be referred as RCS) has been concentrated the function of SRNC and other control planes that SGSN has in the existing system.Like this,, can reduce the kind and the quantity of network node, reduce the delay of signaling and transfer of data, the cost that the attenuating system constitutes by realizing separating in principle of control plane and user plane.On the other hand, in the new wireless access system that the present invention proposes, RCS has " PMM ", " SM ", " to the control of UE ", " broadcast control ", " paging management ", " RRMs of many sub-districts ", " sub-district control " function; NodeB+ has " cell management ", " dedicated channel " and functions such as " common channels " is provided; Like this, control plane and user-plane function by rational each node of arrangement is had further reduce the delay of signaling and transfer of data.
On the other hand, from level, PDCP layer, rlc layer are positioned at UPS; The MAC layer is positioned at NodeB+; Like this, the level that is comprised by reasonable each node of arrangement, thus further reduce the delay of signaling and transfer of data.
Fig. 4 is an embodiment who has used the transfer of data of the carrying out from UE to E-PDN of the present invention.Too tediously long for fear of the description that makes this patent, in the following description, omitted the detailed description of function that the public is known or device etc.
The 401st, UE, the 402nd, NodeB+, the 403rd, RCS, the 404th, UPS, the 405th, GGSN, the 406th, E-PDN.Among the described embodiment, between 402 and 404, between 403 and 404, between 404 and 405 and have physically direct path between 405 and 406; And not having physically direct path between 403 and 402, between 403 and 405,403 and 402,405 communicate by letter need directly be transmitted by 404.
401 UE passes to data 402 NodeB+;
402 NodeB+ realizes the function of physical layer and MAC layer, will receive the processing of user data process physical layer and MAC layer after tunnel or IP transmission network are passed to 404 UPS;
404 UPS realizes the function of rlc layer, and it further carries out the rlc layer processing after receiving from 402 user data, pass to 405 GGSN then through the tunnel;
405 GGSN further is transmitted to the data that receive 406 E-PDN.
In said process, 403 RCS can send the RRC signaling to UE in order to realize the transmission of data, sets up the resource on the wave point; Also can send signaling to UPS and NodeB+, so that set up corresponding resource.Described RCS issues the signaling of UE and NodeB+ and in fact directly transmits by UPS.
Claims (9)
1. wireless access system comprises:
NodeB+, the data of reception UE are passed through the processing of physical layer and MAC layer after tunnel or IP transmission network are passed to data server UPS with the data that receive;
Data server UPS will carry out rlc layer from the data that NodeB+ receives and handle, and pass to gateway support node through the tunnel then;
Gateway support node GGSN for the transmission of data provides route, further is transmitted to external network E-PDN with the data that receive;
Wireless controller RCS is used for Node+, data server UPS, gateway support node GGSN and UE are controlled and manage.
2. system according to claim 1 is characterized in that the signaling that described wireless controller RCS issues UE and NodeB+ directly transmits by data server UPS.
3. system according to claim 1 is characterized in that existing between described wireless controller RCS and the data server UPS direct path physically.
4. system according to claim 1 is characterized in that existing between described NodeB+ and the data server UPS direct path physically.
5. system according to claim 1 is characterized in that existing between described data server UPS and the gateway support node GGSN direct path physically.
6. system according to claim 1 is characterized in that described RCS realizes " PMM ", " SM ", " to the control of UE ", " broadcast control ", " paging management ", " RRMs of many sub-districts ", " sub-district control ".
7. system according to claim 1 is characterized in that NodeB+ realizes " cell management ", " dedicated channel " and " common channel " is provided.
8. system according to claim 1 is characterized in that data server UPS realizes the function of PDCP layer and rlc layer.
9. system according to claim 1 is characterized in that NodeB+ realizes the function of MAC layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101200716A CN1960302A (en) | 2005-11-03 | 2005-11-03 | Wireless access communication system |
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| CNA2005101200716A CN1960302A (en) | 2005-11-03 | 2005-11-03 | Wireless access communication system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047740A (en) * | 2008-04-18 | 2011-05-04 | 捷讯研究有限公司 | System and method for multiple PDN detach |
| CN102577517A (en) * | 2009-08-21 | 2012-07-11 | 三星电子株式会社 | Network elements, integrated circuits and methods for routing control |
| CN104412697A (en) * | 2012-07-13 | 2015-03-11 | 瑞典爱立信有限公司 | Apparatuses and methods related to connecting tunnels through a virtual switch |
-
2005
- 2005-11-03 CN CNA2005101200716A patent/CN1960302A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047740A (en) * | 2008-04-18 | 2011-05-04 | 捷讯研究有限公司 | System and method for multiple PDN detach |
| CN102047740B (en) * | 2008-04-18 | 2016-04-13 | 黑莓有限公司 | For the system and method that many PDN are separated |
| CN102577517A (en) * | 2009-08-21 | 2012-07-11 | 三星电子株式会社 | Network elements, integrated circuits and methods for routing control |
| CN102577517B (en) * | 2009-08-21 | 2015-08-12 | 三星电子株式会社 | For the network element of route test, integrated circuit and method |
| US9887909B2 (en) | 2009-08-21 | 2018-02-06 | Samsung Electronics Co., Ltd. | Network elements, integrated circuits and methods for routing control |
| CN104412697A (en) * | 2012-07-13 | 2015-03-11 | 瑞典爱立信有限公司 | Apparatuses and methods related to connecting tunnels through a virtual switch |
| CN104412697B (en) * | 2012-07-13 | 2019-05-14 | 瑞典爱立信有限公司 | The related device and method in tunnel are connect with by virtual switch |
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