35-OrL400010 Mobile Service Data Configuration ISSUE1.0 (1)

PowerPoint PresentationCDMA Number Planning
The name of this course is “cdma number planning”. It is basic course of our trainning. Because the concept that we talk about here, will be used in the later course.
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Objectives
Upon completion of this course, you will be able to:
The CDMA number planning.
Contents
Definition of Coverage Areas
In a cell mobile communication network, there are many base stations and a mobile station has no fixed position. No matter where a mobile user in a service area moves, a mobile communication network must have the function of switching control so as to achieve such performance as location update, handoff and automatic roaming.
In the mobile communication network architecture made up of a CDMA system, the definition of an area is shown in the figure.
Service area
A service area refers to the area where a mobile station can obtain services, namely, the area where the users in different communication networks (PLMN, PSTN or ISDN) can communicate with a mobile station without knowing its actual location.
A service area may be made up of one or more Public Land Mobile Network (PLMN) and may be a country, part of a country or many countries.
PLMN
PLMN area is a geographic area where a PLMN provides communication services. PLMN can be considered as the extension of a network (such as ISDN or PSTN). One PLMN area may be made up of one or more Mobile Switching Centers (MSC). Within this area, there are common numbering systems (for example, the same national area code) and common routing plans. MSC forms the function interface between a fixed network and a PLMN and is used for call connection.
MSC area
An MSC area is part of the PLMN made up of the areas covered by all the cells controlled by an MSC. An MSC area can be made up of one or more location areas.
Location area
A location area refers to an area where a mobile station can move arbitrarily without any location update. A location area may be made up of one or more cells (or base station area). Paging signals can be transmitted simultaneously from all base stations in a location area to call a mobile station.
Base station area
An area covered by all cells included by one or more Base Transceiver Stations (BTS) located in the same base station point.
Cell
A wireless coverage area identified with a base station identification number or cell global identification. When an omni antenna is adopted, a cell is a base station area.
Sector
The area covered by a directional antenna in a base station is called a sector.
Location area
MSC area
PLMN area
Service area
Cell area
Contents
Parameters Involved
In a CDMA system, the following parameters are defined to identify a user and his location:
MIN/IMSI
MDN
ESN
TLDN
SID/NID
LAI
GCI
SIN
SSN
MIN/IMSI
For example, 0907550001 / 460030907550001CHN
3017775501 / 310013017775501US
3 digits
2 digits
NMSI National Mobile Station Identity
IMSI is the only number to identify a mobile user in a CDMA digital public land cellular mobile communication network.
This code is valid to all location including a roaming area.
IMSI adopts E.212 coded system.
IMSI is stored in the mobile station/UIM card, HLR and VLR and transmitted on a wireless interface and MAP interface.
Unicom uses MIN-based IMSI. IMSI is a 15-digit decimal number and its number structure is shown in the figure.
MCC: Mobile Country Code, 460 for China.
MNC: Mobile Network Code03 used in Unicom CDMA.
MSIN: Mobile Subscriber Identification Number, a 10-digit decimal number. Unicom requires that MIN is the latter 10 digits of an IMSI, namely,
MSINThere are great population in china , so we use ten digits length.
MDN
CC
Mobile directory number
13017775502US
MDN is the number the caller needs to dial when a mobile user in home network is the called.
MDN adopts E.164 coded system.
MDN is stored in HLR and VLR, and transmitted on an MAP interface. The structure of a MDN is shown in the figure.
CC: country code, 86 used in China.
MAC: Mobile Access Code, network number plan adopted in home network, 133 used in China.
H0H1H2H3: HLR identity number, allocated by Unicom headquarters on a uniform basis.
ABCD: mobile user number, allocated by various HLRs.
H0H1H2H3 China Unicom allocation plan:
This allocation plan takes into consideration IRM (international roaming MIN) number resource and user development prediction controlled by China Unicom. In actual applications, the starting point should be H0 equal to 0~9 and MDN can be gradually used.
Currently, the number segment with H0 equal to 0 is used by users in the original Great Wall network and includes TLDN number and user number. For allocation arrangement, refer to the requirements of the Great Wall network.
The numbers with H0 equal to 1~9 are used new users.
The allocation plan of H0H1H2H3 is decided by Unicom headquarters on a uniform basis.
ESN
A unique Electronic Serial Number (ESN) is used to identify single MS. An ESN includes 32 bits and has the following structure:
31......24 23......18 17......0 bit
Manufacturer’s number retained equipment SN
For example, FD 03 78 0A (the 10th Motorola 378 mobile phone)
The equipment serial number is allocated by a manufacturer.
TLDN
44
TLDN is a number temporarily allocated by the VLR of the visiting office to a visiting mobile user for the sake of network routing when a call is made to a mobile user.
TLDN is part of a mobile user MDN and its number structure is shown in the figure:
CC: country code, 86.
CC
SID/NID
In the CDMA network, the MS determines whether roaming occurs by a pair of IDs (SID and NID).
The system ID (SID) contains 15 bits.
Each mobile local network is allocated with one SID.
The network ID(NID) contains 16 bits. This concept just used in the BSS side.
In a CDMA network, a mobile station judges whether roaming takes place based on a pair of identity numbers (SID and NID). System Identity Number (SID) includes 15 bits. Unicom first uses 512 numbers (3600~37FF) with bit 14~bit 9 being 110010. Each local mobile network is allocated with one SID and the specific number allocated to each local network is specified by Unicom headquarters.
Network Identity Number is made up of 16 bits, with 0 and 65535 reserved. 0 is used to represent those base stations in a certain SID area not belonging to a specific NID area. 65535 is used to indicate that a mobile user can roam in the whole SID area.
For a CDMA network side, there is no concept of NID, but an exchange number (one byte), which is used to identify the network equipment where a user is located.
MSCID
MSCID= System Identity (SID) + Switch number (SWNO)
is used to represent a certain set of equipment in an NSS network.
For example:
USA CDMA MSC is 4477+01
Location Area Identity (LAI)
PAGING message is broadcast within a local area, the size of which depends on traffic, paging bearer capability, signaling flow , etc.
Format: MCC+MNC+LAC
MCC: Mobile Country Code, 3 digits. For example, China is 460.
MNC: Mobile Network Code, 2 digits. For example, the MNC of Unicom is 03.
LAC: Location Area Code, a 2-byte-long hexadecimal BCD code.
For example, 460030100(CHN) / 310010001(USA)
Global Cell Identity (GCI)
Format: LAI+CI
CI: Cell Identity, a 2-byte-long hexadecimal BCD code, pre defined by the engineering department. The first 3 digits and the last digit represent the base station number and the sector number respectively. For an omni-directional site, the last digit of CI is 0.
For example
4600301001230 shows base station number 123 contains an omni-directional site
3100100010010(USA).
Sender Identification Number (SIN)
MSC SIN
The MSC number stipulated by Unicom is 460 + 03 + 09 +H0H1H2H3 + 1000.
HLR SIN
The HLR number stipulated by Unicom is 460 + 03 + 09 + H0H1H2H3 + 0000.
SMC SIN
The SMC number stipulated by Unicom is 460 + 03 + 09 + H0H1H2H3 + 2000.
SCP SIN
The SCP number stipulated by Unicom is 460 + 03 + 09 + H0H1H2H3 + 3000.
09 is used by China Unicom, this number is distributed uniquely in the world.
USA MSC SIN: 310013014910000
In all messages, the GTI at the SCCP layer is set as 4.
When a mobile station roams to a new visiting MSC, the visiting MSC sends messages (registration message and registration authentication message) to HLR for the first time. The caller GT at the SCCP layer of this message is set as the MSC number of this MSC, with TT set as 0. The called GT at the SCCP layer is set as the IMSI number of a mobile station, with TT set as 0.
When a mobile station is called, the originating MSC sends messages to HLR. The caller GT at the SCCP layer of this message is set as the MSC number of this originating MSC, with TT set as 0. The called GT at the SCCP layer is set as the MDN number of the called mobile station, with TT set as 0.
When a mobile station sends a short message, the message can be transferred by the MC where the caller mobile station belongs to. The called GT at the SCCP layer of this message sent to the MC is set as the MDN number of the mobile station, with TT set as 128. The caller GT is set as the MSC number of the caller mobile station service MSC, with TT set as 0.
In all messages, the GTI at the SCCP layer is set as 4.
Sub-System Number (SSN)
FC for the PDSN
Summary
This slide mainly introduced the Number planning in CDMA Network and through this slide we have learned the relative concepts in CDMA network.
Thank you

35-OrL400010 Mobile Service Data Configuration ISSUE1.0 (1)

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