SG7000V200R005 Function Descriptions
Huawei Technologies Co., Ltd
September 15, 2009
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Revision Records
Date Revised version
Description Author
2008-7-23 V1.00 t from V2R3 v1.20
Modify performance index. Add signaling replication function, BICC transfer function. Enhance signaling screening function.
SG7000 technical s
Inheri marketing
HUAWEI CONFIDENTIAL 4 1.1 SG7000-01 ... 5 1.2 SG7000-02 ... 6 1.3 SG7000-03 ... 6 1.4 SG7000-04 ... 9 1.5 SG7000-05 ... 14 1.6 SG7000-06 ... 23 1.7 SG7000-07 ... 29 1.8 SG7000-08 ... 29 1.9 SG7000-09 ... 30 1.10 SG7000-10... 30 1.11 SG7000-11... 32 1.12 SG7000-12... 32 1.13 SG7000-13... 35
Item Index
SG7000V200 Function Description
1.1 SG7000-01
Function: Capacity and performance
Description:
1) Capacity 2) performance
3) Capacity and cascading capability
I. SG7000-010101
Function: Capacity
Description:
Max. number of links (64-kbit/s) 12,096 Max. number of links (2-Mbit/s) 756
GT capacity 200,000
Max. number of destination signaling points 2,048 Max. number of narrowband signaling link sets 2,048 Max. number of narrowband signaling routes 4,096
Max. number of AS 1,024
Max. number of SCTP associations 5,120
Max. number of ASP 5,120
Max. number of SPMC (SG in STP mode) 1,024 Max. number of local signaling points supported 256
II. SG7000-010201
Function: Performance
Description:
Item Index
Max. load over 64-kbit/s signaling link 0.99Erl Max. load over 2-Mbit/s signaling link 0.95Erl Max. load over 1.544-Mbit/s signaling link 0.95Erl Message transfer delay 3–15ms Max message processing capability 4920K MSU/s Max GTT capability 2800K GTT/s GTT capability of 64-kbit/s signaling link 80GTT/s GTT capability of 2-Mbit/s signaling link 2356GTT/s Max SIGTRAN proce
SBPU board)
cket/s ssing capability (each of 10000 Pa
III. SG7000-010301
Function: Capacity and cascading capability
Description:
The system can hold up to 16 frames in cascading mode with each frame containing 12 service processing units (SBPUs or SBPIs).
Each SBPU provides 64 NSL or 4 HSL (Q.703) or 2 HSL (ATM). It has broadband protocol processing capability, with each unit providing 32 IP connections.
Each SEPU provides 16 E1/T1 ports.
Each SBPI provides a 10/100M FE interface. This board is configured when broadband services are processed.
1.2 SG7000-02
Function: Interface
Description:
Circuit interface: E1 interface (2.048 Mbit/s), T1 interface (1.544 Mbit/s) Clock interface: 2.084 Mbit/s, 2.048 MHz and 8 kHz clock signal interfaces FE interface: 10BaseT/Fx and 100BaseT/Fx
Standard NM interface: SNMP interface Other: supporting MML
Supporting bit reverse function for convenient interconnection of the equipment
1.3 SG7000-03
Description:
1) STP, constructing signaling network 2) SG, constructing NGN
3) IP STP, constructing 3G and IP signaling networks 4) Signaling System No.7
5) SS7 over IP
I. SG7000-030101
Function: STP, constructing signaling network
Description:
Signaling transfer point (STP) is a device to transfer signaling from one signaling point (SP) to another. In PSTN, the SG7000 is capable of processing and transferring signaling, featuring the functions of a traditional narrowband STP.
Currently, China constructs No.7 signaling network in three hierarchies, namely, HSTP, LSTP, and SP hierarchies. The SG7000 can be used as the HSTP and the LSTP, providing 14-bit and 24-bit signaling point codes (SPCs).
See section 1.1 II. SG7000-010201 and 1.1 III. SG7000-010301 for detailed indexes. II. SG7000-030201
Function: SG, constructing NGN
Description:
The SG7000 has complete SIGTRAN and SS7 protocols, implementing interworking between broadband signaling and narrowband signaling.
The SG7000 interconnects with the softswith and other IP-based database devices (such as the IP-HLR, IP-SCP, and IP-SMSC) in distributed gateway model to handle the interworking of the SS7 between traditional PSTN/PLMN and NGN.
The SG7000 uses E1 interfaces and standard SS7 protocol to connect with the equipment of PSTN/PLMN, and uses IP interfaces and standard SIGTRAN protocol to connect the equipment of NGN, thus implementing the bearer of SS7 over IP.
See section 1.1 II. SG7000-010201 and 1.1 III. SG7000-010301 for detailed indexes. III. SG7000-030301
Function: IP STP, constructing 3G and IP signaling networks
Description:
Along with the development of the NGN and CDMA network, IP-based SIGTRAN protocol comes into being. The SIGTRAN protocol is a protocol stack used in IP networks to transmit signaling and protocols of the circuit switching network (CSN). The standard primitive interface supported by the SIGTRAN protocol does not change the existing CSN signaling, thus ensuring the CSN signaling can be directly used without being modified.
Signaling at the bottom layer is transmitted through standard IP protocol. The SIGTRAN protocol is used to implement IP-based signaling transmission and construct IP-based signaling network.
IV. SG7000-030401
Function: Signaling System No.7
Description:
SG70000 have implemented Message Transfer Part (MTP1/2/3), signaling connection control part (SCCP), Transaction capability application part (TCAP), Operations, maintenance and administration part (OMAP) of Signaling System No.7.
Implementation Distribution of MTP Functions
The first functional level of SG7000 MTP（MTP1） is on SEPU board, with functions implemented by hardware. SEPU provides E1/T1 interfaces.
The second functional level of SG7000 MTP（MTP2） is on SBPU board, with functions implemented by hardware and software jointly. Each of the SBPU board provides 32 NSL(Normal Speed Link ) or 4 HSL（High Speed Link）. The signal unit delimiting and alignment, error testing are implemented by hardware. SBPU board can preprocess the signal units sent by the second functional level of MTP by setting micro-code control, so as to realize error monitoring, filter FISUs, and decrease the load of the main processor. The main processor implements such functions as message transfer, link status control, error correction, initial alignment start and flow control.
The third functional level of SG7000 MTP（MTP3） is on SBPU board and the HSYS board, implementing such message processing functions as message allocation, message authentication and message routing in addition to the signaling network management functions.
Implementation Distribution of SCCP/TCAP/OMAP Functions
SCCP/TCAP/OMAP functions are mainly distributed on the HSYS board and SBPU board
SCCP, As part of the UP, the signaling connection control part (SCCP) belongs to the fourth function level in the SS7. It provides additional functions to the MTP to transmit the circuit related and non-circuit related information and other information between the exchange offices of telecom network and specialized centers over the SS7 network. Thus the connectionless and connection oriented network services are created. . It forms the third layer (network layer) of the OSI layered model.
TCAP, Transaction capability means providing communication capability between various applications and network services. It provides functions and regulations independent of the specific applications for exchanges and special service centers spread in the network in a large number. TCAP uses the addressing mode supported by SCCP and based on connection oriented and connectionless services of SCCP. The TCAP process is divided into component sub-layer process and transaction sub-layer process.
OMAP, Monitoring and measurements for the SS7 are finished by a separate software module in an SG7000, and realized with single monitoring item as the drive, and monitoring classification such as permanent, semi-permanent and activated as the course. In an other word, the monitoring processing course is unrelated to specific items. In this way, the system can add or reduce the monitoring item flexibly, to make the monitoring system less complex and more accurate. Management Function of SS7, As a terminal user of SS7, the management functional module is on its top layer, checking data of SS7 by using SS7 regulations. Meanwhile, during the check, using of the data by the network itself is also checked.
V. SG7000-030501
Function: SS7 over IP
Description:
SG7000 provide SIGTRAN protocol for transmit SS7 over IP network. SIGTRAN stack is the protocol stack that supports transmission of switched circuit network (SCN) signaling protocol over IP network. This protocol stack supports the inter-layer standard primitive interface defined in SCN signaling protocol hierarchy model, so as to ensure utilization of the existing SCN signaling application without modification. Simultaneously, it also uses the standard IP transport protocol as the transmission bottom layer, and satisfies the special transmission requirements for SCN signaling by adding its own functions.
SG7000 provide M3UA/SCTP/IP or M2PA/SCTP/IP protocols for transmit SS7 over IP network.
1.4 SG7000-04
Function: Basic function
Description:
1) Multiple signaling point codes 2) MTP load sharing
3) SCCP load sharing
4) Enhanced multi-point code load sharing 5) Multiple logical networks
6) Semi-permanent connection 7) Voice channel connection 8) Test connection
9) OMAP-MRVT 10) OMAP-SRVT
11) Traffic Congestion Control Function(link monitoring) 12) 2M High Speed Signaling Link Function
13) MTP&SCCP Loop Detected 14) BICC transfer function I. SG7000-040101
Function: Multiple Signaling Point Codes
Description:
Support Multiple Signaling Point Codes function. Max. number of local signaling points supported is 256.
II. SG7000-040201
Description:
SG7000’s Basic MTP Load Sharing
There are route and link selection fields (4-bit values, generally called SLS mask) respectively in the destination signaling point table and the link set table of SG7000. If bit n of the SLS mask (0 ≤ n ≤ 4) is 1, then the 16 SLS values can be divided into 2n groups. For selecting a route in a route set and a link in a link set, SG7000 adopts the similar algorithm.
Load sharing in MTP3 extension is: routing for ISUP messages and TUP messages is no longer done according to the SLS, but according to the middle or higher four bits of the CIC (TUP, ISUP message). However, the links are selected according to the SLS. In this way, the rule for selecting the route is different from that for selecting the link, and the load can be shared more evenly. Load sharing among multiple signaling points: When the multiple signaling point mode is adopted, the SG7000 can share the load among the outgoing link sets by dividing the incoming link sets into different groups. In this way, the load in a certain office direction can be evenly shared among different link sets. Furthermore, this algorithm can adjust the group data according to the service changes in different office directions, so as to share the load evenly.
MTP dummy SLS load share: SG7000 selects routes according to the actual SLS of the messages, but selects links according to the dummy SLS producing by the lower 4 bit of message’s OPC and actual SLS, so different OPC may make the messages with the same actual SLS transmit by different links and make the load be shared evenly.
III. SG7000-040301
Function: SCCP Load Sharing
Description:
Support SCCP flexible Load Sharing or Active/Standby among 16 DPCs / DPC_SSNs:
z 16 DPCs / DPC_SSNs have priority attribute;
z Among DPCs / DPC_SSNs with the same priority, adopt Load Sharing z Among DPCs / DPC_SSNs with the difference priority, adopt Active/Standby
For the services of class 0 with no sequence requirement, SCCP will set the SLS values of messages as needed, generally to make the SLS values distribute evenly for each destination signaling point.
For the services of classes 1 with sequence requirement, SG7000 could execute load sharing according to the following parameters: (including the services of classes 0):
z Signaling link selection code z Input Signaling linkSet code z OPC
z Calling GT IV. SG7000-040401
Function: Enhanced Multi-point Code Load Sharing
Description:
The enhanced multi-point load sharing function implements the following:
z SCCP dynamic load sharing between sixteen signaling points, with each
z Multi-route dynamic load sharing between multiple signaling points z Multi-route dynamic load sharing between non-binding groups V. SG7000-040501
Function: Multiple Logical Networks
Description:
Logical network function is a technology implemented on the STP in the signaling network, that is, to divide an STP into multiple logical devices and each device provides services for a network. The features of the logical networks are as follows:
z Taking advantage of the multiple logical network features, the signaling
network can provide services to different telecom operators;
z The services of different logical networks are separated;
z The logical networks have no impact with SS7 specifications, and do not
depend on the NI of MTP.
z Each logical network can own one or more signaling point codes; or multiple
logical networks share one signaling point code;
z Internetworking between different logical networks can be implemented on
the SCCP layer.
At most 128 logical networks are supported. VI. SG7000-040601
Function: Semi-permanent connection
Description:
A semi-permanent connection determines a board to which an accessed E1 is connected. The board can be a trunk board in another slot, or the front board in the same slot as the back board. Semi-permanent connection contains the following four connections:
z Signaling timeslot connection z Voice channel timeslot connection z Monitoring forward signaling connection z Monitoring backward signaling connection
All the four connections support cross-slot timeslot connections in a same domain. Capacity: supporting 64 cross-slot timeslot connections in a same domain.
The SEPU supports any connections of an accessed timeslot (timeslots can be up to 512 x 512) VII. SG7000-040701
Function: Voice channel connection
Description:
A voice DXC transfers a timeslot from an E1 of an SEPU to the timeslot of another E1 so that the voice channel is transferred. The E1 can be on the same SEPU or on another one.
VIII. SG7000-040801
Function: Test connection
Description:
Test connection is also called monitoring signaling connection. Monitoring signaling connection is divided into forward monitoring and backward monitoring. Forward monitoring monitors accessed signaling and backward monitoring monitors the processed signaling. The monitoring can be implemented across the slots. If the monitoring party and the monitored party are not in the same slot, the signaling is monitored across the slots.
IX. SG7000-040901
Function: OMAP-MRVT-
MTP route verification testDescription:
MRVT mainly aims to confirm whether data in the route table are consistent. It is fulfilled through the distribution of the test message. It transfers the test messages along all the routes that can reach the test destination and registers the past STP identification codes. The whole test concerns:
z Whether there is cyclic loop in MTP. z Whether the route is ultra long.
z Whether the destination place can be identified. z Bi-directionality of the signaling relation.
X. SG7000-041001
Function: OMAP-SRVT
SCCP route verification testDescription:
SRVT is a way to test SCCP global title translation service. The test aims to verify whether the global title translation data is accurate, integrate and compatible at the global title translation service points. The whole test concerns:
z Parallel SCCP route points (standby translation signaling points). z Serial SCCP route points (multiple translation signaling points). z Multiple destination points consistent with the global title under test. z Whether there is cyclic loop in SCCP route.
z Whether the destination place can be identified.
XI. SG7000-041101
Function: Traffic Congestion Control Function (link monitoring)
Description:
SG7000 performs link monitoring function on every link. The traffic load is measured all the time. In case of overload in SPs, SG7000 provides a signaling protocol based solution. All links in the system operate with 5 levels of congestion. The congestion level ‘0’ means no congestion. The other four congestion levels are all configurable. When the traffic is above a congestion level, SG7000 will send TFC with a congestion status to the origination point code after receiving 8 signaling messages from the origination point code. When the origination point code received TFC, it will control signaling traffic to the STP. There are 5 debate levels correspondingly. When the traffic falls below the debate level, SG7000 will stop sending TFC with that level status. A
discard level is used as threshold to discard messages. All these parameters can be configured in SG7000.
XII. SG7000-041201
Function: 2M High Speed Signaling Link Function
Description:
In the SS7 signaling network, a large number of 64Kbit/s signaling links conforming to ITU-T Q specifications are used. With the growing traffic flow over the signaling network, new technologies are required to solve the problem of 64Kbit/s signaling link transmission bandwidth. ITU-T Q.703 2Mbit/s and ATM 2Mbit/s high speed signaling link are a major technology used to solve this problem.
ITU-T Q.703 2Mbit/s high speed signaling link technology evolves from ITU-T Q.703 and ITU-T Q.704 protocols. The equipment adopting this technology can be used to connect to the remote signaling equipment as an integral signaling link, representing all time slots or part of continuous time slots (N X 64K) of an E1 interface.
ATM 2Mbit/s high speed signaling link is another method of realizing high speed signaling link technology. It is a signaling link realized by using the ATM technology over the quasi-synchronization network. From a stack protocol viewpoint, ATM 2Mbit/s high speed signaling link replaces signaling links MTP1 and MTP2 based on a set of ATM protocols (ITU-T Q.2110, ITU-T Q.2140 and ITU-T Q.2144) with those based on ITU-T Q.703 protocol, as shown in the following figure.
Signaling links are point-to-point connections. So the ATM connections required by ATM 2Mbit/s high speed signaling links are also point-to-point connections and there is no ATM switching equipment in between, which is only used in bearing the SSCOP protocol.
Since signaling messages are packaged into ATM cells that have fixed lengths (53 bytes) and are transmitted over the E1. The length of signaling messages directly affects the usage of the link transmission bandwidth. This is a technological restriction of ATM 2Mbit/s high speed signaling link. MTP3 MTP2 MTP1 SSCF SSCOP AAL5/ATM G.804 ATM 2M Link Q.703 64K/2M Link
k Figure 1-1 HSL protocol stac XIII. SG7000-041301
Function:
MTP & SCCP Loop Detected
Description:
Loop detected is a kind of service to detect that messages route ceaselessly between two signaling net units and make the high link load to affect other traffic because of mistake route data or SCCP data. The procedures of the service are as follows:
MTP Loop Detected:
SG7000 compares the outgoing linkset with the incoming linkset of a message If they are the same linkset, SG7000 will throw the message and give an alarm SCCP Loop Detected:
Received message will do GTT with GT+DPC result
SG7000 compares final DPC with incoming OPC of message
If they are the same SPC, SG7000 will throw the message and give an alarm XIV.
SG7000-041401
Function: BICC transfer function
Description:
SG7000 can transfer BICC message if the BICC message is based on M3UA protocol or M2PA protocol. In 3GPP R4 structure, MSS will use BICC message instead of ISUP message to build voice calls, if the BICC message is based on M3UA protocol, it can be transferred by SG7000. In addition if SG7000 are connected to each other by M2PA links, the BICC message can be transferred between SG7000.
The maximum length of BICC message that SG7000 can transfer is up to 1500 Bytes.
1.5 SG7000-05
Function: Optional Function
Description:
1) SS7 FIREWALL 2) IUA convergence
3) MNP (mobile number portability) 4) FNR (Flexible Number Routing) 5) NPDB management entity 6) SMS Router
7) SMS Filter
8) ITU and ANSI protocol Conversion 9) Black&White Lists
10) Number transform
11) Terminal Information Collector (TIC) 12) Enhanded Routing Function
14) IN SMS Bypass
15) International roaming and SIMM with IN 16) Preferred network
17) SUA function 18) CDR function 19) CFS function
20) Signaling replication function I. SG7000-050101
Function: Signaling Screen
Description:
The interconnection between different telecom operators’ signaling networks facilitates the cooperation between them. However, some operators may snatch profit by sending illegal signaling messages. To prevent such events, firewall is used.
The function of firewall is to detect and intercept the illegal packets and ensure the legal ones be transmitted normally.SG7000 provides the signaling firewall function, which masks the illegal signaling messages through specific signaling devices. This function can mask the messages of specified signaling points or of a specific type, thus ensure the security and reliability of the signaling network.
At most, 10K screening rules is supported.
SG7000 can realize the protocol on the layer of MTP, SCCP, MAP. Every protocol layer could be screened according to the following parameters:
- On the MTP layer the message could be screened according to the following parameters: OPC, DPC, SIO, H0H1, TFM, and combination of OPC+DPC+SI
- On the SCCP layer the message could be screened according to the following parameters:
Message Type (UDT/UDTS/XUDT/XUDTS), Calling/ Called GT, SSN, Calling/ Called GT Translation Type (GT Translation Type: DPC+GT, DPC+SSN, DPC+ new GT and DPC)
- On the MAP layer the message could be screened according to the following parameters: MAP operation code: MO/TON/NPI/OA or MAP operation code: MT/OA/IMSI
SG7000 supports to record the detail information of screened messages.
II. SG7000-050201
Function: IUA convergence
Description:
In NGN, because the capacities of the access devices (IAD and AG) are small and the amount of these devices is huge, when they access to the SoftX3000 through the IP network, it is hard for the SoftX3000 to manage and handle all the links of them. In this case, SG7000 can be used to converge the links and then transfer them to the SoftX3000.
Performance: The performance of each SBPU connected to the IAD is 1000 packets per second. The performance of each SBPU connected to the softswitch is 3500 packets per second.
Each SBPU connected to the softswitch supports at most 8 IUA links. III. SG7000-050301
Function: MNP (mobile number portability)
Description:
To balance the competitiveness between mobile network operators, the governments of some countries require the service providers to provide the NP service between mobile networks. With the MNP service, subscribers can change their network operators without changing their MSISDNs. The newly subscribed network operator will allocate a new IMSI (contained in the SIM card) to the NP subscriber.
SG7000 support the following MNP Scenarios:
1. GSM subscribers ported in other GSM network, vice versa 2. CDMA subscribers ported in the GSM network, vice versa 3. GSM subscribers ported in the 3G network, vice versa
The SG7000 implements the MNP service based on the signaling relay function (SRF) of the following standards:
3GPP Specifications:
3GPP 22.066: Support of Mobile Number Portability (MNP); Service description. 3GPP 23.066: Support of Mobile Number Portability (MNP); Technical realization. ETSI GSM Specifications:
GSM 02.66: Support of Mobile Number Portability (MNP); Service description. GSM 03.66: Support of Mobile Number Portability (MNP); Technical realization.
Implementation of the SRF service: The SG7000 is logically located before the HLR to intercept the SRI message sent by the MSC to obtain the called MSISDN. After that, the SG7000 queries the NP database:
z If the callee is in the local network (originally a local network user or a user
ported in from another network), the SG7000 sends the SRI message to the homed HLR.
z If the callee is in a non-local network (originally a non-local network user or a
user ported out from the local network), the SG7000 returns an SRI_ACK message to the MSC. The MSRN in the message is filled with "RN+MSISDN" which is used by the MSC to connect the call to the correct network. RN stands for routing number. After the MNP service is enabled, each network operator is allocated with at lest one RN which is used for addressing.
For the MNP service of pre-paid users, the SG7000 provides two solutions:
z The SG7000 provides the ATI query mode to implement the MNP service.
The IN network obtains the user NP information from the SG7000-NPDB through the ATI query interface and then performs relevant processing (mainly distinguishes the tariff rate) based on the user NP status. After the processing, the IN network provides the MNP service for the pre-paid users. The ATI query interface complies with 3GPP TS 23.078 standard.
z The SG7000 intercepts the IDP message of the SCP and queries the NPDB
based on the called number. Then the SG7000 adds the RN to the front of the called number and routes the IDP message to the SCP. The SCP obtains the user NP information based on the called prefix in the IDP message and then performs relevant processing (mainly distinguishes the tariff rate). After the processing, the SCP provides the MNP service for the pre-paid users. For details of the MNP service implementation, see Technical White Paper for MNP Service.
IV. SG7000-050401
Function: FNR (Flexible Number Routing)
Description:
In the mobile network, the user data is allocated to the HLR based on the MSISDN segment or IMSI number segment. In this case, the MSC obtains the homed HLR address based on the MSISDN segment or IMSI number segment. With the FNR service, network operators can flexibly allocate MSISDN and IMSI numbers regardless of the HLR address and number ranges. This makes the numbers fully used and reduces the number waste. In addition, network operators can easily allocate number regardless of number mapping relations.
Based on 3GPP TS23.066 standard, the SG7000 adopts the signaling relay function (SRF) scheme to implement the FNR service. The SG7000 is logically allocated before the HLR. All SCCP query messages are routed to the SG7000 (SRF). The SG7000 (SRF) analyzes the called MSISDN or IMSI number in the SCCP message and then queries the database to obtain the address of the HLR in which this called number is stored. Then the SG7000 modifies the called number in the SCCP message to the HLR address. Thus, the message is routed to the correct HLR.
For details of the FNR service implementation, see Technical White Paper for FNR Service. V. SG7000-050501
Function: NPDB management entity
Description:
When being provided with the NP (MNP or LNP) service, some powerful network operators require constructing a unified NPDB management system in the network to manage the routing data of NP users. The SmartKey is the unified management system. It obtains the NP data from the national NP database or the NPDB of other network operators and then issues the data to the NPDB (STP-NPDB) of each network element. The networking structure of the NPDB is as follows:
SS7 / SIGTRAN MSC NPAC SmartKey Server NPDB …… BOSS SOAP/XML SOAP/XML IP SG7000 NPDB NPDB SOAP/XML SOA
The currently provided SmartKey is developed based on Number Portability Clearinghouse (NPC, that is, NPAC entity) of Telcordia. It provides the following external interfaces:
z The SmartKey Server is connected with the NPC (NPAC), BOSS, and SOA
Client through SOAP1.1.
z The SmartKey provides the client based on web browser, and you can
directly maintain the data through the web browser.
z The SmartKey is connected with the STP-NPDB through the DB-Library
protocol. Any NPDB complying with this protocol can access the SmartKey after adaptation.
z For other network elements that do not support the DB-Library protocol, the
SmartKey synchronizes the NPDB file through FTP and then provides the file to these network elements.
The SmartKey is physically based on SUN Netra240. Its operating system is Solaris 10 and its database is Sybase 12.5. For details of the SmartKey, see Technical White Page for SmartKey. The SmartKey can store up to 12,000,000 pieces of NP data.
Note:
NPAC: Number portability administration center SOA: Service order administration
About SOAP: SOAP stands for Simple Object Access Protocol. It provides a simple and extendable XML message processing frame with rich functions. It is used to define high-level application protocols so as to provide higher interoperability in the distributed heterogeneous environment. It has the following advantages: 1) It can be extended. 2) It
can be used over any transmission protocol (such as TCP, HTTP, and SMTP) through lower-layer protocols. 3) It is independent from programming model.
VI. SG7000-050601
Function: SMS Router
Description:
SMS Router, a smart short message deliver integrated in Huawei SG7000, can accomplish SMS routing to the right SMSC according to callee or caller number.
VII. SG7000-050701
Function: SMS Filter
Description:
SMS Filter, a smart short message filter function integrated in Huawei SG7000, can accomplish SMS screen according to MAP operation code (MO/MT). SG7000 also can transfer all MO/MT messages of SMS to the third party SMS filter center. The third party SMS filter center detects SMS content and filters these spamming/flooding/faking/spoofing SMS and transfer normal SMS to subscribers.
VIII. SG7000-050801
Function: ITU and ANSI protocol Conversion
Description:
The ITU and ANSI protocol Conversion function implements the interworking between the ITU network and ANSI network. SG7000 provides MTP protocol Conversion and SCCP protocol Conversion.
IX. SG7000-050901
Function: Black&White Lists
Description:
When used as a signaling transfer point (STP), the SG7000 bears and forwards all signaling messages. In this case, the screening service based on the calling and called number can be easily deployed on the SG7000.
When intercepting an IAM, the SG7000 analyzes whether the message meets the screening requirement based on the calling number and called number. If yes, the SG7000 returns an REL message (with configurable value), screens the IAM, and ends the processing. If not, SG7000 transparently forwards the IAM.
X. SG7000-051001
Function: Number transform
Description:
When used as a signaling transfer point (STP), the SG7000 bears and forwards all signaling messages. In this case, the Number transform service based on the user number can be easily
deployed on the SG7000.
When intercepting an IAM, the SG7000 analyzes whether the message meets the Number transform requirement based on the calling number and the callee number: If yes, the SG7000 changes calling number and callee number as configurations and then send it out to the signaling network. If not, transmit the message as normal.
XI. SG7000-051101
Function:
Terminal Information Collector (TIC)
Description:
TIC is a kind of service in which the network provides users with customized services according to the user terminal type and location. The procedures of the service are as follows:
The SG7000 catches a message between the MSC/SGSN and the EIR. The SG7000 gets user information from the message.
The SG7000 sends the information to the TMS (Terminal Management System).
The TMS collects the user information.
The TMS system provides the relevant service to the user. Notes ：TMS is generally provided by operator.
XII. SG7000-051201
Function: Enhanced Routing Function
Description:
Before routing the MTP or SCCP signaling messages to the destination according to DPC or GTT, SG7000 will check if the messages need to be routed based on MAP operation code according to the special routing principle data configured in system. If the specific parameters of the message match to special routing conditions, SG7000 will route the message to the special destination, otherwise SG7000 will route the message as general case.
If the special routing destination node is unreachable due to malfunction or some other reasons, SG7000 supports routing the messages as general case or discarding the messages.
The special routing conditions that can be configured in SG7000 include:
z MAP operation code
z Calling GT – including Translation Type z Called GT – including Translation Type z OPC
z DPC z Linkset z Network Type
MAP operation code: The MAP operation code specified in GSM 09.02 protocol phase 1, phase 2 and phase 2+, for example: Update_Location, MO_Forward_SM.
Calling GT: The calling party address in SCCP layer. Called GT: The called party address in SCCP layer. OPC: The origin signaling point code of the message. DPC: The destination signaling point code of the message.
Linkset: The link set index that applies this special routing function. For example, if the message comes from the specific link set, it will be routed based on MAP operation code. But if the same message comes from other link set, the message will be routed as general case.
Network Type: Configuring whether this special routing function is available for all TDM links and/or all SIGTRAN links.
The routing conditions can be any combination of above. XIII. SG7000-051301
Function: IN voice call Bypass
Description:
IN voice call Bypass function intercepts the free call IDP and return Continue message directly back to MSC, to reduce the load of IN system. The free call conditions can be configured flexibly, for example, time-based conditions, called number-based and calling number-based conditions.
XIV. SG7000-051401
Function: IN SMS Bypass
Description:
Prepaid subscriber can apply to be a free SMS subscriber, when this subscriber send a short message, SG (Bypass server) will intercepts the IDP from MSC to IN system and return back Continue message to make the short message go on, so the IDP message does not go to IN system and load of IN system will be reduced. The conditions on Bypass server can be configured flexibly.
XV. SG7000-051501
Function: International roaming and SIMM with IN
Description:
International roaming function is supported by SG and IN system together. It provides each subscriber an ability to roam to international network because of prepaid mode for the roaming fee. SG intercepts and processes PRN, SRI_ACK and ISD etc, sends information or relays signaling message to IN system to do billing, SIMM and other service for roaming subscriber.
XVI. SG7000-051601
Function: Preferred network
Description:
There are more networks can be registered when subscriber is roaming, maybe one of the roaming network is more favourable. Preferred network function supports to refuse the registration message from other networks but the preferred network, so that the subscriber can be registered to the preferred network.
XVII. SG7000-051701
Function: SUA function
Description:
SG7000 provides translation function between No.7 and SUA, M3UA and SUA, M2PA and SUA and so on. XVIII. SG7000-051801 XIX. SG7000-051901
Function: CFS function
Description:
The call filter service, also called the CFS, is the black and white list service application. The system obtains the calling and called numbers from the intercepted ISUP/INAP message and determines whether to shield this call according to the configured rules. It is the enhanced Black and White list feature; it can support the implementation principles as below.
z Checking the calling number length: It is required that the length of the calling
number must be in a valid range. This avoids some fraud calls, for the system cannot normally charge the calls if the calling number is rather short.
z Checking the call type: The system has certain restrictions on special calls for
each subscriber. For example, some subscribers are not allowed to make toll calls or called party prepaid calls.
z Checking the Personal list: The Personal list records the ordinary called party
groups that a subscriber is not allowed to make calls to.
z Checking the Common list: The Common list records some commonly-used
special numbers that an ordinary subscriber is not allowed to dial.
z Checking the Public list: The Public list records the numbers that are not
allowed to dial. The subscriber data configuration determines whether the system restricts the calls based on calling or called numbers.
XX. SG7000-052001
Function: Signaling replication function
Description:
SG7000 supports to replicate the signaling message to a third-party platform while transfer the signaling message to the normal destination. SG7000 can replicate the message based on the following conditions:
z Incoming link set
z OPC
z DPC
z SCCP CgPA z SCCP CdPA
z MAP Operation Code z Combination of above
If this function is activated, once received a signaling message, SG7000 will check whether the message matches the replication conditions. If it matches any replication condition, SG7000 will replicate a same signaling message and send it to pre-configured destination and transfer the original signaling message to the normal destination.
SG7000 supports a backup destination for the replicated signaling message, which means if the active destination is unreachable, SG7000 can send the message to a backup destination if it has been configured.
1.6 SG7000-06
Function: OAM
Description:
1)Maintenance management
2)Data management
3)Alarm
4) Online Signaling Message Tracing, Record and Decoding Function 5)
Statistics
6)
NTP
7)Hot-patch
8)NMS
10)
GT test Function
11)QoS Measurement
12) Report System I. SG7000-060101Function: Maintenance management
Description:
Maintenance management provides multiple maintenance control methods such as query, display, switchover, reset, isolation, block and activation. By using these maintenance control methods, efficient management and maintenance operations can be performed on the hardware components, system resources (load of CPU), signaling links, clock links and physical ports of the SG7000 system, as well as terminals under its control.
II. SG7000-060201
Function: Data management
Description:
Data configuration:
Support MML command and GUI interface. Data management provides multiple database operation methods such as addition, deletion, modification, query, storage, backup and restoration. By using these database operation methods, efficient management and maintenance can be performed on the various data (including equipment data, signaling data, routing data) which runs on the SG7000 system.
Data backup:
At 4:30 every morning, the system automatically backs up the BAM database and the registry in the default directory: E:\MSSQL\DATA. Principles are as follows:
z The data backed up from Monday to Saturday is kept for one week. z The data backed up on Sunday is kept for one month.
z On the first day of each month, the data is backed up.
Commands are supported in data backup. The system supports network backup. III. SG7000-060301
Function: Alarm
Description:
Alarm management receives and handles the variety of alarm information generated by the system. Depending on the category and severity level of the alarms, the appropriate alarm terminal device such as the alarm box or the alarm station will be driven to produce different audible and visual signals. Moreover, the corresponding alarm message will be interpreted and then transmitted to the network management center through the network management interface. In addition, alarm management also has the functions to store the alarm information, query the alarm history and set the alarm processing mode.
IV. SG7000-060401
Description:
To realize built-in online No.7 signaling monitor and decoding functions, additional interfaces are unnecessary for SG7000 of Huawei. SG7000 can perform real-time display and information decoding of the monitored signaling link information in the background maintenance terminal. Moreover, this function brings no affection to the normal working signaling links at all.
The built-in real-time online monitor function of NO.7 signaling can provide functions such as real-time online signaling monitor, message decoding and tracing message storage. In addition, certain link, multiple links or all links can be selected for tracing. The interface of NO.7 signaling online monitor function is illustrated as the figure below:
Figure 1-2 Online Message Tracing, Record and Decoding
The built-in real-time online monitor function of NO.7 signaling can provide the following functions:
(1) Real-time online signaling trace;
(2) Real-time online signaling filter: Filtering conditions can be flexibly set, including DPC, OPC, SI, NI, H0, H1, SLS, CIC and message direction;
(3) Detailed signaling decoding: The decoding format is the same as the universal No.7 signaling analyzer, and the tracing message can be explained to the user level (TUP/ISUP/MAP/INAP); (4) Traced signaling storage: Facilitate subsequent analysis;
(5) Tracing of partial links and link sets, or all signaling links.
The built-in real-time online monitor function of NO.7 signaling greatly facilitates deployments of backbone network engineering of China Mobile and provincial signaling network engineering and at the same time facilitates daily maintenance. This greatly improves the deployment and
maintenance efficiency. Thanks to its power functions, cost is effectively reduced, so it is highly appraised by the engineering personnel and maintenance personnel of users.
V. SG7000-060501
Function: Statistics
Description:
SG7000 provide signaling statistics function, fully comply with ITU-T Q.752 standard. At the same time, SG7000 support statistics function of M3UA/M2PA protocol.
VI. SG7000-060601
Function: NTP
Description:
SG7000 support NTP protocol in BAM server. VII. SG7000-060701
Function: Hot-patch
Description:
SG7000 support hot-patch function in service. VIII. SG7000-060801
Function: NMS
Description:
SG7000 support Huawei iManager N2000/M2000 UMS. IX. SG7000-060901
Function: Pseudo-message Function
Description:
Through background man-machine command, SG7000 can generate various pseudo message sequences. Thus, before cutover of signaling network, this function can be utilized to complete checking of routing data and GT data of STP equipment.
In maintenance terminal of SG7000, either “Debug pseudo message” or “User pseudo message” function can be utilized to generate various pseudo messages. Through “Debug pseudo message”, messages changing according to certain principle can be generated (following items, namely, message contents, message changing principle, total message transmitting time and message number generated per second can be set), e.g. generating SCCP message about GT code changing within certain number segment. Through “User pseudo message” message transmitted by functional modules such as MTPL2 and MTPL3 can be simulated, and further, message type, message parameter, total message transmitting time and message number transmitted per second can be set as well. According to different message types, certain message can be directly generated in HPU board, or delivered by SYS and the message can be sent to any link by setting different parameter. For the former, each link can create heavy load message, while for the latter, heavy load message can only be sent to certain office direction or certain link.
X. SG7000-061001
Function: GT test Function
Description:
This operation is used to test global titles, so as to ensure the correctness of them. This is a useful to validate the GTT configuration especially when there are a large number of GTT data in the SG7000. Input the GT in the dialog showed below.
Figure 1-3 Global title test input window
If the system correctly translates the global title, the returned results will contain the global title length, global title, translation result, destination signaling point code, subsystem number, matching global title length and matching global title..
Figure 1-4 Global title test output window XI. SG7000-061101
Description:
QoS is an important parameter of broad band. SG7000 provides a measurement function for QoS and reviews them as graph. QoS is shown by a set of the following items:
z Total number of transmitted messages z Retransmitted messages number z Average time interval
z Max message transmission interval z Min message transmission interval
XII. SG7000-061201
Function:
Report System
Description:
Report System provides a flexible interface to get the statistics of SG7000 and shows them as tables to tell operator SG7000’s status and the signaling network’s status. The items shown are following:
z Link load statistics of narrowband z Link load statistics of M3UA and M2PA z CPU load statistics
z Link set load statistics z DPC statistics
z Resource statistics
1.7 SG7000-07
Function: Security management
Description:
Flexible authority management:
The BAM authorizes the workstation attempting to access and the subscriber account. Authorities of a workstation and a subscriber can be configured flexibly, and the minimum allocated authority is command group. Commands in a command group can be set and combined by subscribers freely.
Detailed logs:
The BAM records all executed commands and saves as a log for query. The information recorded includes commands, parameters, execution time, operator, and workstation.
BAM protector:
The BAM protector effectively prevents illegal programs to ensure the security of the BAM.
1.8 SG7000-08
Function: Troubleshooting
Description:
The SG7000 detects faults and generates alarms to notify the NMS. The reported information can help locate, solve problems, and insulate faulty units. The SG7000 can automatically recover the faulty parts or insulate them if the faults cannot be removed. Alarm levels can be defined accordingly.
The SG7000 can manage faults occurred in the following items:
z DPC z route z NSL z HSL (ATM, Q.703) z SPMC z SCTP link z boards
z environment (temperature and humidity) z AS
z ASP
z Interface (E1/FE)
The SG7000 can manage the following performance:
z Load of CPU z Load of link
Item Index
1.9 SG7000-09
Function: Reliability
Description:
1)Reliability solution
2)Reliability indexes
I. SG7000-090101Function: Reliability solution
Description:
The system adopts distributed processing structure in centralized management mode. The services are processed on different boards without affecting the services on other boards. Important boards (such as clock boards, system management board, and broadband interface board) are in 1+1 hot backup mode.
Link load is controlled at five levels. When the congestion reaches the threshold, the system discards subsequent messages to avoid overload of the links.
In networking, the SG7000 adopts symmetrical mode. When one SG7000 is faulty, the other SG7000 takes the protocols (including MTP and M3UA) and the services. Thus, services will not be interrupted.
II. SG7000-090201
Function: Reliability Indexes
Description:
Table 1-1 lists the reliability indexes of the SG7000. Table 1-1
Reliability Indexes
System availability ≥ 99.99989% Unavailable time ≤ 0.54 min/yr.
MTBF 87.67 yr.
1.10 SG7000-10
Function: Hardware Structure
Description:
1)
Cabinet
2) FrameI. SG7000-100101
Function: Cabinet
Description:
19-inch N68-22 cabinet (2200 mm × 600 mm × 800 mm) in conformance with the International Electro technical Commission (IEC) standard is adopted for SG7000. The SG7000 cabinet supports –48V DC input.
II. SG7000-100201
Function: Frames
Description:
The frame adopts standard structure of 19-inch width and 9U height, which complies with the IEC297 standard. It features high reliability, high integration, and powerful processing capability.
1.11 SG7000-11
Function: License
Description:
License is a string of characters positively encrypted by a certain tool according to the authentication content. The unique ID (might be MAC address) of the equipment is to be authenticated.
The control function of a License file includes two aspects: function control and subscriber display restriction.
The function control is implemented through the MML Server. When receiving an MML command, the system reads the License file to judge whether the subscriber has the authority to execute the command. If the subscriber has no authority, the system returns a prompt indicating a wrong operation.
Display restriction function is different due to different subscribers. This function is used to restrict subscribers to execute allowed commands only.
1.12 SG7000-12
Function: Technical standards
Description:
1) Chinese Specifications 2) ITU-T Recommendation 3) IEEE Standard 4) IETF Standard 5) ANSI Standard 6) ETSI Standard 7) PNO-ISC Standard 8) Environment Standard I. SG7000-120101Function: Chinese Specifications
Description:
z YD/T 1203-2002 Technical Specifications for Signaling Gateway Equipment z YD/T 1127-2001 Technical Specifications for interworking of SS7 and IP z YD/T 1144-2001 National Technical Specification of No.7 Signaling Transfer
Point (STP) Device
z YD/T 1125-2001 Technical Specification of National No.7 Signaling
Mode-2-Mbit/s High Speed Signaling Link
z National Technical Specification of No.7 Signaling Mode-Message Transfer
Part (MTP)
z National Technical Specification of No.7 Signaling Mode-Signaling
z National Technical Specification of No.7 Signaling Mode-Transaction
Processing Capability Part (TC)
z National Technical Specification of No.7 Signaling Mode-Operation,
Maintenance and Administration Part (OMAP).
z Message Transfer Part Level 3 User Adaptation Layer (M3UA)
(YD/T1192-2002)
z Message Transfer Part Level 2 Peer-to-Peer Adaptation Layer (M2PA)
(YD/T1191-2002)
z Message Transfer Part Level 2 User Adaptation Layer (M2UA) z Stream Control Transmission Protocol (SCTP) (YD/T1194-2002) z General Technical Specifications on SoftSwitch (YDC 003-2001)
z General Technical Specifications on Telephone Switching Equipment by the
Information Industrial Ministry of China (YDN 065-1997)
z Technical Specifications on Intelligent Network Service Control Point (SCP)
of China (YDN 048-1997) II. SG7000-120102
Function: ITU-T Recommendation
Description:
z CCITT Q.701–Q.709 (07/96) Specifications of Signaling System No.7
-Message transfer part
z ITU-T Q.701–Q.709 (03/96 version or 07/96 version) Specifications of
Signaling System No.7 - Message transfer part (these two versions are for reference only, and the system only complies with some updated process definitions).
z ITU-T Q.711–Q.719 (07/96) Specifications of Signaling System No.7 -
Signaling connection control part
z ITU-T Q.770–Q.779 (07/96) Specifications of Signaling System No.7 -
Transaction Capabilities Application Part
z ITU-T Q.750/Q.751/Q.753–Q.759 (07/96) Specifications of Signaling System
No.7 - Signaling System No. 7 management
z ITU-T Q.752 (06/93) Specifications of Signaling System No.7 - Signaling
System No.7 management: MONITORING AND MEASUREMENTS FOR SIGNALING SYSTEM No. 7 NETWORKS
III. SG7000-120103
Function:
IEEE StandardDescription:
z Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications (IEEE802.3)
IV. SG7000-120104
Function: IETF Standard
Description:
z Internet Protocol (RFC0791)
z Architectural Framework for Signaling Transport (RFC 2719) z Stream Control Transmission Protocol (RFC 2960)
z SS7 MTP3-User Adaptation Layer (RFC3332) z SS7 MTP2-User Adaptation Layer (RFC3331) z SS7 MTP2-User Peer-to-Peer Adaptation Layer V. SG7000-120105
Function: ANSI Standard
Description:
z ANSI T1.111-1996 Signaling System No.7 (SS7)-Message Transfer Part
(MTP)
z ANSI T1.112-1996 Signaling System No.7 (SS7)-Signaling Connection
Control Part (SCCP) VI. SG7000-120106
Function: ETSI Standard
Description:
z ETS 300 008-1–ETSI MTP z ETS 300 009-1–ETSI SCCP z ETSI TS 102 141 V1.1.1 (2003-02)
z Services and Protocols for Advanced Networks (SPAN); z MTP/SCCP/SSCOP and SIGTRAN (Message of SS7 over IP); z Message transfer part 2 User Adaptation layer (M2UA)
z ETSI TS 102 142 V1.1.1 (2003-02)
z Services and Protocols for Advanced Networks (SPAN); z MTP/SCCP/SSCOP and SIGTRAN (Message of SS7 over IP); z Message transfer part 3 User Adaptation layer (M3UA)
z ETSI TS 102 144 V1.1.1 (2003-02)
z Services and Protocols for Advanced Networks (SPAN); z MTP/SCCP/SSCOP and SIGTRAN (Transport of SS7 over IP); z Stream Control Transmission Protocol (SCTP)
VII. SG7000-120107
Function: PNO-ISC Standard
Description:
z PNO-ISC Specification Number 005 C7 Interconnect Message Transfer Part
Number Entity Suppliers of Core Network
Type/Versi Operator
z PNO-ISC Specification Number 003 C7 Interconnect Signaling Connection
Control Part (SCCP) VIII. SG7000-120108
Function: Environment Standard
Description:
z Bellcore GR-63-CORE, "Network Equipment Building Standard: Physical
Protection," Telcordia Technologies, Morristown, NJ, October 1995.
z ETS 300 019, "Equipment Engineering (EE); Environmental Conditions and
Environmental Tests for Telecommunications Equipment," European Testing Standards Institute, Sophia Antipolis, France, 1994.
z GR-3028-CORE Thermal Management in Telecommunications Central
Offices, Telcordia Technologies Generic Requirements, Issue 1, November 2001, Telcordia Technologies, Inc., Piscataway, N.J.
1.13 SG7000-13
Function: Interconnection list
Description:
on
Alcatel S12 J-CLM8, S12 J- Chine Mobile and China Unicom CLM7.2
Motorola /
Siemens SR9.0, SR8.0 Chine Mobile and China Unicom Nokia DX200-M10, DX200- Chine Mobile and
China Unicom M11
Ericsson APZ 212 33-R8, APZ ne Mobile and China Unicom 212 33-R9 Chi
Huawei MSC33, MSC60 Chine Mobile and China Unicom 1 MSC
Beijing Telecom
GSM15, GSM16
Ericsson APZ 212 33-R8, APZ ne Mobile and China Unicom 212 33-R9 Chi
2 HLR
Number Entity Suppliers of Core Network
Type/Version Operator
China Unicom
Alcatel A8360-G9 Chine Mobile and China Unicom
Huawei G3HLR36 Chine Mobile and
China Unicom Nokia DX200-M10, DX200-M11 Chine Mobile and
China Unicom HP / Beijing Telecom GSM15, GSM16 Siemens /
Huawei WINV200R002, WINV200R003 Chine Mobile, China Unicom, and Thailan AIS
d
Alcatel(S1240) COMPAQ ES45-Release 2.3.08 Chine Mobile Nokia / Ericsson / 3 IN Technomen / 4 VMS Logica / Comptel / Lucent /
Nokia SC5BCD3 Chine Mobile
Ericsson /
Huawei V3.0, V2.8 Chine Mobile and China Unicom 5 SMS
Number Entity Suppliers of Core Network Type/Version Operator Huawei SGSNV800R002, SGSNV800R003 Chine Mobile
Motorola CSGSN-170090 Chine Mobile
Nokia SG3.0-ECD4 Chine Mobile
Siemens / Alcatel /
Siemens /
Huawei GMLC V100, LCSGV100 Chine Mobile and China Unicom 7 Location
Base Services
