The goal is to realize the 3GPP by 2G network to 3G network, ensure the smooth transition of future technology backwards compatibility, support arrangement and system between relaxed roaming and compatibility. Its functions: the 3GPP is mainly designed to GSM core network foundation, UTRA (FDD for W - CDMA technology, TDD for TD - CDMA technology) for the wireless interface of third generation technical specifications.
introduction
The law are bought (3GPP) is well ahead of 3G technology standard organization is The ETSI by European, Japanese, Korean ARIB and TTC TTA and American T1 at The end of 1998, sponsored by The designed to study and establish and promote The evolution of GSM network based on The core of 3G standards, namely WCDMA, td-scdma, EDGE, etc. China wireless communication standard group (CWTS) in 1999 to join the 3GPP.
members
The 3GPP membership includes three categories: organization partner, marketing representative partners and individual members. The 3GPP organization partners include European ETSI, Japanese ARIB, Japanese, Korean TTC TTA American T1 and Chinese communication standardization association six standardization organization. The 3GPP marketing representative partner is not official standardization organization, they are to provide advice and unified the 3GPP market opinion organizations. Td-scdma BBS to join makes The 3GPP partner plan marketing representative partners to increase in The number of 6, other include: GSM Association, BBS, BBS, UMTS IPv6 3G America (3G Americas), Global Mobile communications supplier Association (The Association) Mobile should Global optimisation techniques.
With the 3GPP2 3GPP series standard version
First, the 3GPP version
In order to meet the requirements of new market, regulating the 3GPP continually add new features to enhance their ability. In order to develop business to offer stable implementation platform and add a new characteristics, the 3GPP use parallel version system, all versions are as follows:
1, 99 version
The earliest various third generation norms were compiled into initial 99 version, in March 2000 completed, the subsequent version longer with the year is named. 99 version of the main content is:
1) new WCDMA wireless access. We introduce a new set of air interface standards, using a new wireless interface technology, namely WCDMA technology are introduced, suitable for packet data transmission protocols and mechanisms, data rate can support 144, 384Kbit/s and 2Mbit/s.
2) its core network is still based on GSM to another WCDMA core network.
3) the 3GPP standard for business development provides three mechanisms, namely the CAMEL for IP business functions, open the business structure (hereinafter referred to as OSA) and session initial agreement (hereinafter referred to SIP), and in different versions of the corresponding definition. 99 version of GSM of business has been further enhanced, transmission speeds, frequency utilization and system capacity are greatly enhanced. 99 version on the business in addition to support basic telecommunication business and carrying business outside, also can support all gotone, in addition it also supports a location based business (LCS), number carry business (MNP), 64kbit/s circuit data load, electricity expressway and open multimedia services business structure, etc.
2, Release4
Currently the latest full 3GPP standard was named Release4 (R4). R4 norms in March 2001 "freeze", meaning futuretech R4 only allowed to conduct necessary correction and roll out revised edition, no longer add new features. All R4 norms are to have a "4. X.y" form of the version number.
R4 wireless network in the technical specification without network structure change, but adds a few interface protocols enhancement of the function and the characteristic, mainly including: low bit piece rate TDD, UTRA FDD Node B standing straight put, synchronization, to AAL2 Iur Iub and the connection's QoS optimization, Iu on wireless access bearing (RAB) buildup QoS consultation, Iur and Iub wireless resource management (RRM), the optimization of enhanced Iub, Iur RAB support, and transmitted on bearing modifications Iu process, WCDMA1800/1900 and soft handoff in DSCH power control improvement.
R4 in the main features of the core online for:
1) electric expressway call and bearing separation: will move exchange center (MSC) is divided into MSC Server (MSC Server) and media gateways (MGW), make the call control and load completely separate.
2) core network within the ss7 transmission the third Stage (Stage 3) : support the ss7 in two core network function based on the different network between two entities, such as the way to transmit based on IP and ATM network, MTP transmission.
3) R4 in business to 99 version was further enhancement, can support electricity expressway multimedia news business, enhance emergency calls business, MexE, real-time fax (support three kinds of fax service) and by the operator decided blocking (allow operators fully or according to the requirements in the group stage of establishing a block user datagram protocol access).
3, Release5
If the code in the freezing period after finding need to add new features, and then create a new version of the standard. At present, the new characteristics are added to Release5 (R5). The first R5 version in March 2002 frozen, complete specification can be formed after R5 in June 2002 completely frozen. Timely added to the new features will contain R5 in subsequent version R6. All R5 norms are to have a "5. X.y" form of the version number.
3GPP
R5 will finish on IP multimedia subsystem (IMS) definition, such as routing selection and multimedia sessions of the main parts. The complete R5 for steering whole IP network operators to provide a started constructing. The main characteristics of R5 plans are:
1) UTRAN of IP transmission, high-speed downlink packet data service access (HSDPA), mixed ARQII/III, support RAB enhancements, to Iub/Iur wireless resource management and the optimization of UE positioning enhancements, same domain with many different RAN node core network node connections and other original R5 function.
2) R5 in core network aspect main features include: use M3UA (SCCP - User Adaptation) transmission ss7, IMS business realization, emergency calls enhancements and network security enhancement. In addition, Rel - 5 in the network interface can support UTRAN to GERAN of Iu Iur - g interface and, thus realize WCDMA and EDGE interchange.
3) in business applications, the main R5 prepared in the following aspects: strengthening support based on IP multimedia services, CAMEL Phase4, global text telephone (GTT) and shall business.
Because IP multimedia subsystem is one of the main characteristics, R5 3GPP technical standards set for its many discussions and research. IMS positioning in complete existing electricity expressway is unable to operators multimedia services, and not to replace now mature electricity expressway business, so as to better compatible 99 version to fulfill the system smooth evolution process. The 3GPP standardized process of actual is 99 version, R4 and parallel process, perfect R5 99 version and R4 required a lot of time. To avoid repeating formulated a standard and consideration and fixed web standards, unity of making decisions about the parts 3GPP IMS will directly by IETF standard and itu-t T standards.
4, Release6
R6 version has just started, the network architecture and the same R5, main business research, as well as with other network communication research. In R6 introduced. HSUPA again
For more detailed information 3GPP technical specifications of each system version of the main contents (including R7, R8, R9) please enter.
Second, 3GPP2 version changes
For 3GPP2 speaking, version is more also, there is A Release 0, A and B three versions, and these version also has been constantly updated. Based on comprehensive IP Release C also in the study.
The ongoing commercial applications of standard based mainly on preparing Release 0 and Release A two versions. The two versions in the end of 2000 and 2001 is stable. Based on the existing due cdmaOne standards and specification, an IETF standard maturity relatively 3GPP well.
But because 3GPP2 in standard consistency and open a better 3GPP weak, so operators and manufacturers of the whole system version of CDMA2000 choice, also does not completely consistent, give equipment between interchange and different network between roaming a few difficulties.
3GPP2 started from 2000 research cdma2000-1X of enhanced 1X/EV technology. In September 2000 3GPP2 completed can support peak rate of Mbps cdma2000-2.4 1X of enhanced technology 1X/ev-do (the standardization of Data campaigns). A further study of the support 5Mbps above rate 1X/EV - DV (Data and Voice) standard.
3GPP2 Release
C is for total IP standard, and the 3GPP similar, 3GPP2 due to the main energy in improving the existing version, Release C progress has been slow.
3G peer protocol
Is the 3G mobile communication network is a kind of creation, transmission, multimedia playback of standard. This standard is based on mpeg-4 code technology. On market numerous mpeg-4 standards as long as support to this standard can be used for the 3GPP 3G mobile communication equipment.
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