TW516294B - Combining differing transport technologies in a telecommunications system - Google Patents

Abstract

In a multi-layer telecommunications system which includes an application layer and a transport layer, differing transport technologies are interworked without terminating the application layer signaling or without involving a technology interworking in the control plane of the application layer (e.g., without interworking in the application signaling). In various illustrated embodiments, the application layer is a radio network layer of a wireless telecommunications system. In at least some embodiments of the present invention a transport layer interworking function is situated on an interface between two nodes of the radio access network (RAN). The interworking function can be located in a separate node which may be a node having both ATM and internet protocol (IP) interfaces. There are numerous modes of implementing the interworking of the present invention, regardless of which interface is affected (e.g., an Iur interface, an Iu interface, or an Iub interface). A first interworking mode involves interworking with q.aal2 signaling. There are various ways or options of implementing the interworking with q.aal2 signaling. A first such example option is to use an IP specific signaling protocol over the IP network. A second example option is to use q.aal2 signaling over the IP network to/from the IP node. In one of its aspects, the present invention also provides an optimization feature in the event that nodes on both side of the interface (Iu interface, Iur interface, or Iub interface) are IP-connected nodes. Another interworking mode involves obtaining address and binding identifier parameters to be included in application signaling messages by consulting a transport layer interworking gateway. Yet another mode of implementing interworking for the present invention involves tunneling.

Description

516294 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs of the People's Republic of China 5. Description of Invention (II) Background This application claims the right to U.S. Provisional Patent Application No. 60 / 205,569, filed on May 22, 2000, and The entire text is incorporated herein by reference. This application is related to US Patent Application No. 09 / 734,040, filed on December 12, 2000, and the entire text is incorporated by reference. This article: 1. The invention of the invention The invention belongs to the field of communication, and especially relates to the interconnection of different transmission technology networks in the communication system. 2. The relevant technology and other considerations focus on the typical cellular radio system, mobile users Equipment unit (UE) 'communicates with one or more core networks through a radio access network (RAN). The user equipment unit (UE) may be, for example, a mobile phone ("cellular" phone) and A mobile station with a laptop with a mobile terminal 'and can thus be, for example, a portable, pocket, handheld, built-in computer or vehicle-mounted mobile device, which can access the network by radio Spread bones and / or information. The Border Code Line Access Network (RAN) covers a certain geographical area, which will be cut into many cell areas, and each cell area is convinced by a base station. Cells It is a geographical area in which the radio coverage is provided by the radio base station equipment located at the base station site. Each cell is usually based on an identification code that is unique and broadcast in the cell. These base stations can communicate with many user equipment units (UEs) located within the range of the child base station via an air interface (such as radio frequency). -4- This paper standard applies to national standards ( CNS) M specifications (2 like 297 Gongchu (please read the notes on the back before filling in this card) ------ 、 Order ---- ^ 516294 A7 B7 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (2) In this radio access network, many base stations are usually connected to a radio network controller (RNC). The radio network controller is sometimes called a base station controller (BSC), which will supervise and coordinate Each base station is connected to the activities of these base stations. These radio network controllers are connected to a core network. An example of a radio access network is the "UMTS terrestrial radio access UTRAN. ”UTRAN is a third-generation system, which in some respects is built on the radio access technology of the“ Global System for Mobile Communications ”(GSM), which is known to be developed in Europe. UTRAN is roughly It is a wideband coded multi-directional proximity (W-CDMA) system. That is, as those skilled in the art know, in W-CDMA technology, a shared frequency band can be used to support a user equipment unit (UE) and many bases. Simultaneous communication between stations. At the receiving station, the signals occupying the common frequency band are distinguished based on the spread spectrum CDMA waveform properties of a high-speed digital application like virtual noise (PN). These high-speed PN digits are used to modulate the signals from the base station and the user equipment unit (UE). Transmission stations using different PN numbers (or time-shifting PN numbers) can generate signals that are demodulated individually at the receiving station. The high-speed PN demodulation can also allow the receiving station to advantageously generate the received signal from a single transmitting station by combining the many different propagation paths of the transmitted signal. Therefore, in CDMA, when handing over a connection from one cell to another, the user equipment unit (UE) does not need to switch frequencies. Therefore, the destination cell can support the connection to a user equipment unit (UE), and at the same time, the speaking cell can continue (please read the precautions on the back before filling this page). , Γ1 ---- The size of the paper is in accordance with the Chinese National Standard (CNS) A4 (210 X 297 mm). Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 516294 A7 B7 V. Description of the invention (3) Provide connection services . During the handover process, the user equipment unit (UE) always communicates through at least one cell, so the call is not interrupted. So there will be this "soft delivery" noun. In contrast to hard handover, soft handover is a "connect before break" operation. "UMTS Terrestrial Radio Access Network (UTRAN)" can be integrated into circuit-switched and packet-switched connections. In this regard, the circuit switching connection in UTRAN involves a radio network controller (RNC) that communicates with a mobile switching center (MSC), which in turn is connected to a connection-oriented external core network. This can be a "Public Switched Telephone Network (PSTN)" and / or an "Integrated Services Digital Network (ISDN)". On the other hand, the packet exchange connection in UTRAN will involve a radio network controller that communicates with the "Servo GPRS Support Node (SGSN)", which in turn will support it via a backbone network and a "gate GPRS support" Node (GGSN) "and connected to a packet switching network (such as the Internet, X · 25 external network). There are many related interfaces in UTRAN. The interface between the radio network controller (RNC) and the core network is called the "Iu" interface. The interface between the radio network controller (RNC) and its base station (BS) is called the "Γ Iub" interface. The interface between the user equipment unit (UE) and the base station is called the "air interface" or "radio interface" or "Uu" interface. In some cases, a connection involves both a "servo" or "source" RNC (SRNC) and a target or mobile RNC (DRNC), where the SRNC controls the connection and one or more connection diversity legs are Disposed by DRNC (For this, see US Patent Application No. 09 / 035,821, filed at -6- This paper size applies to China National Standard (CNS) A4 size (210X 297 mm) (Please read the note on the back first (Fill in this page again)

516294 Printed by A7 B7, Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the Invention (4) March 6, 1998, entitled 'Telecommunications Inter-Exchange Measurement Transfer', and US Patent Application No. 09 / 035,788. Building on March 6, 1998, titled "Telecommunications Inter-Exchange Congestion Control", both of which have been incorporated herein by reference). The SRNC and DRNC interfaces are called Γ Iur "interfaces. In "UMTS", it is based on a Γ non-accessible layer (NAS) service identification code (NAS monthly service ID) on the non-accessible layer in the UMTS structure. Recognize another ij out of the good service project. At the access level of the UMTS architecture, each service item is a radio access bearer (RAB) identification code (RAB ID) on the Iu interface, and one or more of the radio interface (ie, air interface) It is identified by a radio bearer (RB) identification code (RB ID). Each NAS service is thus connected to a certain radio access bearer (RAB), while each radio access bearer (RAB), j is connected to a certain radio bearer (RB). One or more radio loaders (RBs) will be connected to a transmission channel on the Iur, Iub, and radio interface, such as to a shared transmission channel or to a Γ dedicated transmission channel (DCH) ". A project called the "3rd Generation Partnership Project (3GPP)" has already begun to further evolve and develop UTRAN and GSM basic radio access network technologies. In a radio access network such as UTRAN, as calibrated by the 3GPP R99 standard, data will need to be transmitted between many nodes in the radio access network. These nodes may be, for example, radio access controller (RNC) nodes and base station nodes. For example, the data transmission can be located between two radio access controllers (RNCs), or in / radio access control. This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the notes on the back before filling this page)

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516294 A7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of the invention (between the 5 controller (: NC) node and the _ base station node. There will be two types of data transmitted between the nodes of the radio access network One type of asset is user data, which is generally the information that will eventually be carried on the A side of the radio (empty, taxi # _ Ruler 1 worker) (via the air interface and returned to the user device Unit_ data). The second type of data is control signals, such as control signals transmitted between many nodes in the radio access network. Normally, the transmission of these two types of data will be organized as Respective transmission networks. In other words, user data is carried on a user data transmission network, and control signal transmission is carried on a -signal transmission network. There will also be user data Relevant control data, and this control data will be carried on the user data transmission network. For the umts R99 standard that is calibrated by the "3Gpp", AAL2 / ATM was previously selected as Transmission on WCDMA radio Get user data in the network (such as in UTRAN). "Asynchronous Transmission Mode (ATM)" technology (ATM) is a packet-oriented transmission mode, which uses asynchronous time-multiplexing technology. It is called a cell and has a fixed size. An ATM line contains 53 octets, five of which are used to form the header, and the other 48 are the "payload" or information part of the ATM cell. The header contains two quantities that are used to identify a connection in the ATM network that the cell is traveling in, especially VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier). Usually, The virtual path is a main path that has been defined between two switching nodes on the network; the virtual path is a specific connection of each main path. -8-This paper standard applies to the Chinese National Standard (CNS) Α4 specification (210 × 297 Public t) — 1 ^ ------------ (Please read the notes on the back before filling this page) Order

Line —— Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 516294 A7 B7 V. Description of Invention (6) An agreement reference model has been developed to explain the level setting method of ATM. The protocol reference model includes (from bottom to top) a physical layer (including the physical media sublayer and the transmission convergence sublayer), an ATM layer and an ATM interfacing layer (AAL), and other higher levels. The basic purpose of the AAL layer is to isolate higher layers from the specific characteristics of the ATM layer by mapping higher-level protocol data units (PDUs) to the information fields of ATM cells and vice versa. There are several different AAL types, including AALO, AAL1, AAL2, AAL3 / 4, and AAL5. AAL2 is a standard developed by ITU Recommendation 1.363.2. The AAL2 packet contains a packet header in three octets, and a packet payload. The AAL2 packet header includes an eight-bit channel identifier (cro), a six-bit length indicator (LI), a five-bit user-to-user indicator (UUI), and a five-bit Header Error Control (HEC). The AAL2 packet payload carries user data and can be changed from one to forty-eight octets. Although AAL2 / ATM has been selected as the user data transmission of the 3GPP R99 standard in WCDMA radio access networks (ie, UTRAN), the UTRAN architecture is structured to accommodate transmission technologies other than ATM. A feature in the UTRAN that helps to accommodate other transmission technologies is that the UTRAN is carefully arranged in the radio network layer and a transmission layer. In the example shown in Figure 1, the radio network layer is above the L line, and the transmission layer is below the L line. Each of the radio network layer and the transport layer has a control plane and a user plane. For user data transmission, this layering method means that the individual frame processing (FP) agreement is confirmed. -9- This paper size applies the Chinese National Standard (CNS) Α4 specification (210 × 297 mm) 1--rfi . II—- r- —-* _- ......-=--II -II--(Please read the notes on the back before filling this page) --line

Jib294 5. Description of the invention (Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs has been marked as a part of the radio network layer (ie, in terms of user data formatting and addition of related control data). The Frame Processing (FP) agreement will perform certain service items from the Tibetan transport layer. Figure 1 illustrates a certain first node U26, which operates according to the 3GPP R99 standard. The node is another node, which is also based on the 3GPP R99 standard Operation. Identical points and 1-N can communicate with each other through a lux interface. In the description of "I ux interface", the "χ" indicates that the interface is general 'and can be like an Iub interface (In this case, node 1-N is the base station), or the lur interface (in this case, the node is another RNC node), or the h interface (in this case, the node 1-N is Core network nodes). As mentioned above, Figure 1 does not list the physical layer, and this may be a link between some nodes and 26, and it is preferably a two-way one. Figure 1 further shows There are many types of signal transmission between these nodes and 26. In wireless At the network layer, the nodes i-26 and nodes 1-N can execute an "application", which is related to the application control signal transmission between nodes 1_26 and nodes. In Figure i, the The application control signal transmission is depicted as the line labeled "Acp". In the user-oriented aspect of the radio network layer, the user-oriented traffic is shown as the line labeled "lux FP". According to the 3GPPR " standard, the establishment of a transmission carrier is usually (but not necessarily) initiated by a Servoed Radio Network Controller (SRNC) as part of the operation performed by the wireless network layer (iron) procedure. The There are four basic steps for the SRNC's wireless network layer procedure to initiate carrier transfer. The first step (please read the precautions on the back before filling this page)

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V. Description of the invention (8) The printing procedure of the employee consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is that the node that starts the RNL program will send an application message (application startup control message) to the control plane of the wireless network layer to other Node 'to start the wireless network layer process. For the Iu interface, the application start control message includes a bit address and a reference (ie, a link identification). In the first step, the node receiving the application start control message will return an application start response message. If a transport carrier is established on the iur and Iub interfaces, the application startup response message will include the address and reference (ie, link identification) of the receiving node (such as UMTS nodes 1-N in Figure 1). In the third step, the SRNC sends a transport carrier establishment request message using the transport specificity signal in the transport layer. The "Access Link Connection Application Protocol (ALCAP)" has indeed been used by 3GPP as a general term for a protocol for establishing transport carriers, such as the name of a transport-oriented control signal transmission. For the AAL2 / ATM user data transmission rule implemented by the 3GPP R99 standard, the ALCAP protocol is Q.2630.1, also known as q.aal2. The receiving node (such as UMTS nodes 1-N in Figure 1) receives the transport carrier related information carried in the transport carrier establishment request message, and uses the address and reference (that is, as in the case of lur or Iub) Next, the address and reference returned in the second message above), the transmission carrier is associated with the previous radio network layer procedure. In the fourth step, the receiving node sends back a setup confirmation message. The transmission carrier will not be built until the startup node receives the build confirmation message. When the transport carrier is indeed established, it will be passed to the higher level of the XJMTS node (such as UMTS nodes 1-26) that starts the RNL procedure. In view of the fact that the UTRAN architecture is structured to accommodate transmissions other than atm (please read the precautions on the back before filling this page)

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Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 516294 A7 ---------- B7___ V. Description of Invention (9) Transmission technology, Internet Protocol (IP) is now regarded as another item. Transmission technology. For this, some adaptation protocols on the Ip layer will be needed to provide the services provided by the AAL2 agreement to the Frame Processing (Fp) agreement. An example of such a compliance agreement is the χτρ agreement disclosed in US Patent Application No. 09 / 734,040, filed on December 12, 2000, and incorporated herein by reference. This adaptation protocol can provide various functions, including connection identification of IP network endpoints and sequential delivery. There are two main ways to establish IP transmission carriers. One way is to include the smart address and the IP endpoint ID in the wireless network layer application signal transmission, and exchange the IP address and the IP endpoint ID in a two-way manner. Another method is to have individual signals to exchange that information. The network interworking between AAL2 and the Internet Protocol (IP) has now involved the control aspects of both the wireless network layer and the transport layer. In this case, the application layer signal transmission is performed in two phases. The first phase involves first transmitting a signal to a node that acts as a gate for that signal. The application signal transmission will be terminated at the gate node, and the information related to the transmission will be changed from ATM to IP, or vice versa. Then, this transmission information is provided to the transmission layer of the transmission network interworking function. However, for some applications, such as 3GPPUTRAN, this advanced technology network interworking operation does not meet the architectural requirements for separating transmission technology from the wireless network layer signal transmission area. When introducing new transmission technologies such as the Internet Protocol (IP), it is necessary to consider the transfer of characteristics of the already implemented network. This means that, for example, it is necessary for a certain industry operator to be able to operate part of Utran -12- This paper size is applicable to the Chinese National Standard (CNS) Α4 specification (210X297). (Please read the precautions on the back before filling (This page)

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516294 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (AAL2 / ATM is adopted, and other parts adopt the Internet Protocol (ιρ) network. It is expected that new nodes must be able to follow backwards Compatible way to interact with the old nodes. Considering that all RNC nodes in a radio network like UTRAN must be able to communicate with each other, the introduction of new transmission technologies may cause many problems. One possible The solution is to require all new nodes connected to the Internet Protocol (IP) network to also connect to existing AAL2 / ATM networks to provide accessibility on both transmission networks. However, This requirement imposes unrealistic restrictions on the allocation of new nodes. Therefore, what is needed, and also for the purpose of the present invention, is a method that can be used to include an application layer and a transport layer. Multi-layer communication system is a technology for interconnecting different transmission technologies in the network. SUMMARY OF THE INVENTION In a multi-layer communication system, it includes an application layer and a transmission layer. The technology is interconnected via the network, and it is not necessary to terminate the sending of the application layer No. 4 'or it is not necessary to involve the network interworking technology on the control plane of the application layer (that is, if the application signal is not required to be interconnected with the network). In various descriptions In a specific embodiment, the application layer is a radio network layer of a wireless communication system. In at least some specific embodiments of the present invention, a transport layer network interworking function is located in two of the wireless access network (UTRAN) The interface between the nodes, or the interface between a node in the wireless access network (UTRAN) and a core network node (such as an RNC point). The network interworking function can be located at a certain node And the node can be another one with ATM and -13- (Please read the notes on the back before filling this page)

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Wood paper scale is applicable to China National Standard (CNS) 8-4 specification (21〇 < 297 mm 516294 A7 V. Description of the invention (11 Employee Consumer Cooperative Cooperative Stamp of Central Standard Bureau of the Ministry of Economic Affairs, International Internet Protocol (IP) The UMTS nodes of the two interfaces. There are multiple modes for implementing the network interworking of the present invention, no matter which interface is involved (such as the Iur interface, Iub interface, or a dagger interface). The first network interworking mode involves There are 12 signal transmissions to the network. There are various ways or options to implement # qaal2 signal transmission. The first such example option is to use a specific IP on the IP network. Transmission protocol. The second such example option is to use q.aa12 signal transmission on the network to and from IP nodes (such as IP-connected RAN or UMTS nodes), and one of the features, when located When the nodes on both sides of the interface (Iu interface, iur interface, or 疋 Iub interface) are Liao connection nodes, the present invention also provides: an optimization characteristic. This optimization characteristic helps to determine the savings between the two. Pass and connect nodes for JP throughout , And if so, you can exchange IP information within the application: number transmission message. In order to make this decision and possible parent switching actions, a first node (being an IP connection node) will initiate a 2 control message at a certain startup. In the note transport carrier container sent to the second node, the packet D has eight IP addresses and the IP terminal identification code for the uplink. If received in the application control response message from the second node, When the IP transport carrier container arrives, the transport carrier will be considered as established. Otherwise, if an IP transport carrier container is not received at k Θ first point, then the first node will call The network interworking operation of the present invention. Another network interworking mode involves consulting a transport layer network interworking switch to obtain an address and various links to be included in an application signal transmission message. Identify sub-parameters. In this mode, the first node -14-

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Line 516294 A7 B7 V. Description of the invention (12 The employee consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs prints a non-IP connection node, but the second node is an IP connection node. When the startup application control is received from the first node When sending a message, the second node obtains the network address of the network interworking switch and the link identification code of the network interworking switch from a transmission-level network interworking switch for return to the first node. In addition, the second node will establish a false two-way IP connection with the network intercom. The first node will then use the network address of the network intercom and the chain of the network intercom. The identification code is used to establish a connection with the network interworking switch. Another mode of implementing the network interworking of the present invention is related to tunneling operations. It is not necessary to establish a transmission connection before sending data, and When it does not matter which node is used to initiate the AAL2 connection, the tunneling mechanism can be used. In the tunneling operation, two independent unidirectional flows are established on both sides of Liao and Bawang. For tunneling operations Can pass the carrier The information is contained in the application signal transmission message. The present invention can also cover the potential utilization of multiple network interworking steps. For example, there can be many IP-ATM-IP network interworking steps (such as first ip / atm network interworking , And then for an ATM / IP network interworking) ^ Or on the other hand, there can also be many ATM-IP-ATM network interworking steps. The diagram is simply ^ The disclosure of the present invention and other purposes, characteristics and advantages, according to The latter column and the specific description of the preferred embodiment as shown in the accompanying drawings can be obvious, in which the reference code in the various views throughout the reference refers to the phase J bureau #. The temple pattern is not necessarily proportional, but To emphasize the explanation of the principle of the present invention. Fig. 1 illustrates the layers 15 · (CNS) AA ^ m (210X29 ^ ·) in the radio access network (Please read the precautions on the back before (Fill in this page)

Line 516294 A7 V. Description of the invention (i3) 'a ~ one — ~ A schematic view; FIG. 2A is a schematic diagram of an exemplary mobile communication system showing a network interworking gate node according to a specific embodiment of the present invention Exemplary location; FIG. 2B is a schematic diagram of an exemplary mobile communication system, showing an exemplary location of a network interworking node according to another embodiment of the present invention; FIG. 2C is a schematic diagram of an exemplary mobile communication system. An exemplary location of a network interworking gate node according to yet another embodiment of the present invention is shown; Figures 3A and 3B are schematic diagrams showing an exemplary transport layer network interworking technique Q of the present invention using q aa2 signal transmission 4A and 4B are schematic diagrams, showing a map using a π-calibrated signal transmission protocol on the network to implement options for interworking with the ZIP network; Figures 4A (1) and 4B (1) are schematic diagrams, respectively Shows the basic information that will be included when user data is transmitted in the options described in Figure 4A; Figures 5A and 5B are schematic diagrams showing a round trip to and from an IP node over an IP network. Figure 3A using q.aa12 signal transmission 3B network interoperability technology implementation options; the Central Bureau of Standards Co-op staff printed the Ministry of Economy (Please read the Notes on the back to fill out this page)

5A⑴ and 5B⑴ are schematic diagrams, respectively, showing basic information that will be included when user data is transmitted in the options described in FIGS. 5A and 5B; FIGS. 6A and 6B are schematic diagrams, respectively, showing Figure 5 shows the various options of the protocol on the ATM network and the IP network. Figures 7A, 7B, and 7C are schematic diagrams illustrating various exemplary optimization scenarios. These are helpful It is determined whether the nodes of the two are actually π -16- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 516294 A7 B7 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 14) Connected nodes, if allowed, exchange IP information, otherwise resort to the network; FIG. 8 is a schematic diagram showing an exemplary network of the present invention using a network interworking operation with application signal transmission Interworking technology; Figures 9A and 9B are schematic diagrams showing an exemplary network interworking technology of the present invention using a tunneling method; Figures 10A and 10B are schematic diagrams showing the multiples according to a specific embodiment of the present invention Network Interoperability Examples of such steps or money. Disclosure Abstract In the descriptive notes, for the purpose of explanatory and non-limiting purposes, specific details are made according to specific architectures, interfaces, technologies, etc., for a thorough understanding of the present invention. However, for those skilled in the art, it should be known that the present invention can be implemented in other specific embodiments different from the specific details of this disclosure. In other examples, detailed descriptions of various well-known devices, circuits, and methods have been omitted so as not to obscure the focus of the present invention with unnecessary details. The invention is described in terms of non-limiting, exemplary scenarios such as UMTS 10A in FIG. 2A, UMTS 10B in FIG. 2B, and UMTS 10C in FIG. 2C. The configuration of the UMTS 10A, UMTS 10B, and UMTS 10C is substantially the same except for some exemplary network interworking nodes as detailed later. In each of UMTS 10A in FIG. 2A, UMTS 10B in FIG. 2B, and UMTS 10C in FIG. 2C, a representative, connection-oriented, external network is shown as a cloud-like figure 12, which may be, for example, "public switched telephone Network (PSTN) and / or "Integrated Services Digital Network (ISDN)." One Generation -17- Ί—ίι -------- (Please read the notes on the back before filling this page) Order

The paper size of the paper is applicable to Chinese national standards (CNS> A4 (210X297 mm). Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 516294 A7 B7. 5. Description of the invention (15) Expressive, connectionless, external network. The cloud-like diagram 14 is shown, which can be, for example, an Internet-like person. The two networks are coupled to corresponding service nodes 16. The PSTN / ISDN connection-oriented network 12 is connected. To a connection-oriented service node, i.e. a "Mobile Switching Center (MSC)" node 18 as shown, can provide circuit-switched services. The Internet connectionless-oriented network 14 is connected to a "General Packet Radio Service (GPRS)" Node 20, which is tailored to provide packet-switched services, and this is sometimes referred to as a GPRS service node (GSN). The core network service nodes 18 and 20 each access the network through a radio (RAN) interface, hereafter referred to as the Iu interface, is connected to a "UM TS Terrestrial Radio Access Network (UTRAN)" 24. The UTRAN 24 includes one or more Radio Network Controllers (RNC) 26. For simplicity, see UTRAN 2 in Figure 2A 4 is represented by only two RNC nodes, specifically RNC 26! And RNC 262. Each RNC 26 is connected to many base stations (BS) 28. In UTRAN, base stations (BS) 28 are also called Γ nodes "B. For example, and again for simplicity, in this illustration, only two base station nodes are connected to each RNC 26. For this, RNC 26! Is the servo for these base stations 28 ^ and 28 ^ 2 RNC 262 is to serve these base stations 28 ^ and base stations 282_2. It should be understood that each RNC can serve base stations of different numbers, and these RNCs do not need to serve base stations of the same number. In addition, Figure 2A shows a The RNC may be connected to one or more other RNCs in the UTRAN 24 via an Iur interface. An Iur link 29 in the figure is shown as connecting two exemplary radio network controllers RNC26i and RNC262. A user equipment unit (UE), such as the user shown in Figure 2A-18- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) Ίί 卜 ---. Φ% ------ Order # line (please read the precautions on the back before filling this page) 516294 A7 B7 Central Bureau of Standards, Ministry of Economic Affairs Printed by the employee consumer cooperative V. Description of the invention (16) Equipment unit (UE) 30, which can communicate with each other through one or more base stations (BS) 28 through a radio or air interface 32. Each radio interface 32, Iu interface, Iub interface The Iur interface can be shown as the dashed line in Figure 2 A. In this example, the radio access is based on a wideband, "coded multi-directional proximity (WCDMA)", and each radio channel is configured using CDMA spread spectrum digital . Of course, other access methods have to be adopted. WCDMA can provide wide bandwidth as a multimedia service and other high transmission rate requirements, and many strong features such as diversity handover and RAKE receiver to ensure high quality. Each user mobile station or equipment unit (UE) 30 will be assigned its own scrambling code, so that the base station 28 can identify the transmission operation from the specific user equipment unit (UE) and let the The user equipment unit (UE) is able to identify, from all other transmission operations and noises that appear in the same area, transmission operations from the base station to be delivered to the user equipment unit (UE). There may be different types of control channels between the RNC nodes 26 and their user equipment units (UE) 30. For example, there are several types of broadcast channels in the forward or downlink direction, including general broadcast channels (BCH), paging channels (PCH), shared pilot channels (CPICH), and forward access channels (FACH).俾 Provides various other types of control messages to the user equipment units (UE). In the reverse or uplink direction, the user equipment unit (UE) can use a random access channel (RACH) when it wants to access to perform location registration, call origination, paging response, and other types of access operations. )get on. The random access channel (RACH) can also be used to load some user data, such as best efforts for applications such as web browsers. -19 (Please read the precautions on the back before filling this page), π

LINE This paper size applies to China National Standard (CNS) A4 specification (210 × 297 mm) 516294 A7 V. Description of the invention (17 Printed by the staff of the Central Standards Bureau of the Ministry of Economic Affairs for consumer cooperation

Packet information. Traffic channels can also be configured, such as a shared traffic channel or a dedicated traffic frequency channel (DCH), to carry a large number of call communications with the user equipment unit (UE). Among other things, the present invention relates to a network interworking operation of a different technology (such as various transport layer technologies), and does not need to involve a control-oriented technical network interworking operation in a wireless packet access network ( If there is no need for network communication for application data transmission). That is, as in the case of FIG. 1 described above, in the present invention, there are both an application layer (such as a radio network layer [RNL]) and a transport layer, and each of the application layer and the transport layer has a control plane and a user plane. "Application" items can be executed in the application layer; application signal transmission is performed in the control plane of the application layer. That is to say, as one of its operations, the "application" project usually executes a radio network layer (RNL) procedure to start transmitting carriers. The specific "application" project performed depends on, for example, which interface is involved. On the IU interface, the application signal transmission protocol is called "RANAP", and the user-oriented frame protocol is the Iu user-oriented frame protocol (IuFp). For the Iur interface, the application signal transmission protocol is (RNSAP), and the user-oriented frame protocol is Ιππ * user-oriented frame protocol (IurFp). For the Iub interface, the application protocol is (NBAP), and the user-oriented frame protocol is the Iub user-oriented frame protocol (IubFp). For call control within the core network, there will be an application called "Carrier-Independent Call Control (BICC) J. In the following, for ease of explanation, not limitation, this application layer will be referred to as radio Access the network layer. -20- 1J = I- 1-.......: _-I (Please read the notes on the back before filling this page}

•! | I — This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm) > 16294 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (18) According to the previous disclosure. Yes, in at least some specific embodiments of the present invention, a certain network interworking function is located on a transmission network interface between two nodes of a radio access network (UTRAN). This network interworking function can be located in an individual node, which can be a "UMTS node" with an ATM and Internet Protocol (IP) interface. For example, in the specific embodiment shown in FIG. 2A, the network interworking gate node 50A is located at a "servo RNC" node (such as a Radio Network Controller (RNC) node 26G and another RNC node (such as a radio Network controller (RNC) node 262). In another specific embodiment shown in FIG. 2B, the network interworking gate node 50B is located in a "servo RNC" node (such as a radio network control (RNC) node 26J and one or more base station nodes (for example, base station node 28 ^). In another embodiment shown in FIG. 2C, the network interworking gate node 50C It is located between the core network node (such as MSC node 18) and a "serving RNC" node (such as Radio Network Controller (RNC) node 26!). Which UTRAN interface requires network interworking is the network operator Decided. Because the network interworking operation is performed only in the transport layer, the same network interworking node (Iu, Iur, Iub) can be used regardless of the application to be transmitted. These specific embodiments do not have Exclusive, because other specific embodiments are also within the scope of the present invention For example, according to the scenario described in Figures 2A and 2B, the routing table configuration of the transmission network can be configured to be 'served by the same network interworking gate node located in the transmission network (for example, in Figure 2A, 2B and 2C at any location / crossing any interface). Although Figures 2A, 2B, and 2C respectively depict network interworking nodes along the Iur, Iub, and Iu interfaces, this is for illustrative purposes only. Network interworking operations Only carry out -21-• ϋ-i- i (Please read the precautions on the back before filling this page) Clothing-Order% thread The paper size applies the Chinese National Standard (CNS) Α4 specification (210 × 297 mm) Central Ministry of Economic Affairs Printed by the Consumer Cooperatives of the Standards Bureau 516294 A7 B7 5. The invention description (l9) runs in the transport layer and has nothing to do with the Iur, Iub, and Iu application protocols. A network interworking node can perform this function on all interfaces. It is now understood that the network interworking node of the present invention may be located as shown in FIG. 2A, FIG. 2B, or FIG. 2C, or even a certain node, and the description of the present invention may continue, without reference to the network interworking Specific position of the brake, in other words, unless Note otherwise, otherwise the following discussion will involve (1) two radio access network nodes [one of the radio access networks is a radio network controller (RNC) node and the other radio access network For a radio network controller (RNC) node (ie, the specific embodiment shown in FIG. 2A), or for a base station node (ie, the specific embodiment shown in FIG. 2B)], or (2) a radio network control (RNC) node and a core network node (ie, the specific embodiment shown in FIG. 2C)]. According to this general description, for such things as "network interworking function" or "network interworking gate" or any other The term of change should be clear that this represents a network interworking switch, that is, the network interworking switch in the specific embodiment shown in FIG. 2A. 50A, network interworking switch 50B in the specific embodiment shown in FIG. 2B, or FIG. 2C The network interworking switch 50C in the specific embodiment, or any of these variations (including the network interworking switch located in a radio access network (RAN) node, or an RNC node and a core network Specific embodiments between road nodes). The network interworking operation of the present invention has multiple implementation modes. The first mode is related to network communication with q.aal2 signal transmission, and can be roughly shown in Figures 3A and 3B ° Network communication according to Q. AAL2 signal transmission: Overview Figures 3A and 3B show that transmission is transmitted Various regulations in the carrier startup procedure-22- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page) •% 516516294 A7 B7 Central Printed by the Consumer Bureau of the Standards Bureau. 5. Description of the invention (20) Forging and / or information, which uses the network interworking function for transmission according to q.aal2 signal. In Figures 3A and 3B, nodes 3A-26 and 3B-26 are connected to the signal transmission initiator (starting node), and nodes 3A_N and 3B-N are connected to the u tiger transmission receiver. In this regard, "connection" refers to a connection provided by the transport layer and is referred to as the Γ transport carrier in the 3GPP specifications ". In the two diagrams of Figs. 3A and 3B, a transport layer network interconnection switch 50 is located on the connection path. In Fig. 3a, node 3A_N (connection_signal transmission receiver) is an Internet Protocol (IP) node, and node 3 A_26 (connection signal transmission initiator node) is an ATM node. In the scenario of FIG. 3A, the connection signal transmission initiator node 3a_26 starts the application startup procedure by sending an application startup message 3A-1 to other nodes (such as node 3A_N). In response to this, the IP basic node 3A-N will return a start response message 3A_2. The start response message 3A_2 includes a node 3 A-N address (such as E. 164 address) of a receiving node (such as node 3 A-N) and a reference (such as link identification). In the described embodiment, the link identification is preferably a "Servo User Generated Reference (SUGR)". These two application startup messages 3A] and startup response messages from · 2 are application signal transmission messages, which can be carried on the SS7 network in the described specific embodiment, or transmitted by other signals. Carrier technology. SS7 is a transmission network separated from the user's data transmission network. The SS7 network can again be based on pure SS7 (MTp3b) or SCTP / IP, or a mixture of them. The transport layer network intercom device 50 located on the connection path is transparent to the application control signal transmission and communicates with the application control signal transmission (please read the precautions on the back before filling this page > >

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Line -23- Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 516294 A7 B7 V. Description of Invention (21) There is nothing to lose. Therefore, the transport layer network interworking switch 50 does not affect the application activation message 3A-1 and the activation response message 3A-2, and is not substantially affected by them. The transport layer network interworking switch 50 only processes certain types of cell streams on the transport layer (such as an ATM adaptation layer (AAL) type, such as the AAL2 of the specific embodiment described herein), rather than A stream of cells using signal transmission (such as AAL5 in the specific embodiment described herein). Generally speaking, the control signal transmission is transmitted through a network different from the transport layer network. Now return to the scenario of Figure 3 A. The connection signal transmission initiator node 3 A-26 will then send a "Setup Request" message 3 A-3 on the transport layer. The term Γ q.aal2 is synonymous with Q.2630.1 [Described in New ITU-T Recommendation Q.2630.1 AAL Type 2 Signalling Protocol (Capability Set 1)], or in related articles (such as Q.263〇 · 2). The q.aal2 "establishment request" message 3A-3 will be received by the transport layer network interconnector 50. The network interworking switch 50 is known to receive the node having the E.164 address marked in the q.aal2 "establishment request" message 3A-3 from the network interworking switch 50 The outgoing route is an Internet Protocol (IP) network. In this regard, the network interworking switch 50 will query a database 52 to translate the E.164 address into the IP address of the terminal node (e.g., nodes 3A-N). When the IP address of the terminal node is obtained, the network interworking switch 50 sends a carrier signal transmission message 3 A-4 to the node 3 A-N. The carrier signal transmission message 3 A-4 includes information necessary for the node 3 A-N to establish a one-way connection to the network interworking switch 50. The SUGR is included in the -24 · This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) (Please read the precautions on the back before filling this page)

III m I, 1T line 516294 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (22) The carrier signal transmission message 3A-4, and let this node 3A-N, namely an IP address The signal transmission, such as the IP carrier signal transmission message 3A-4, can be associated with the application signal transmission (that is, the application start message 3A-1). The IP carrier signal transmission message 3 A-4 is based on an IP carrier control protocol, as shown in IP-ALCAP, which can be transmitted on, for example, "Stream Control Transmission Protocol (SCTP)" [see ffiTF RFC 2960]. After receiving the carrier signal transmission message 3A-4, the node 3A-N will respond (using, for example, IP-ALCAP) with an IP response message 3 A-5, which includes establishing an inter-gate 50 from the network. Information necessary for a one-way connection to the IP node 3A-N. Receiving the IP response message 3A-5 everywhere on the network interworking switch 50 will cause the network interworking switch 50 to send a q.aal2 "establishment" confirmation message towards the connection activation node, node 3A-26. 3A-6. The database 52 queried by the network interworking switch 50 may be an internal database, as shown in FIG. 3A. Alternatively, the database 52 may be an external database, such as a "domain name server (DNS)". See RFC 1034 "Domain Names-Concepts and Facilities", RFC 1035 "Domain Names-Implementation and Specification" and RFC 2181 "Clarifications to the DNS Specification" Is an Internet (IP) node, and nodes 3B-N are ATM nodes (such as a 3GPP R99 node). That is, as shown in the scenario shown in FIG. 3A, the connection signal transmission node 3B-26 starts the application startup procedure by sending an application startup message 3B-1 to other nodes (such as node 3B-N). In response to this, the ATM basic node 3B-N returns a start response message 3B-2. The start response message -25- This paper size is applicable to China; CNS) Yina (21〇χ297 公 瘦) '• n_l ϋϋ (Please read the precautions on the back before filling this page)

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516294 A7 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs

V. Description of the invention (23) 3B-2 includes a node 3㈣ address (such as an E. 164 address) and a SUGR from a receiving node (such as a node. Point 3B_N). After receiving the start response message 3B-2, the IP node 3b_26 will know that in order to receive something like node 3B-N, the SRNC node 3B_26 must send one on the network through the appropriate network intercom gate 50. message. In this regard, the node 3B-26 will query a database 54 in order to translate the E.164 address of the received node 3B-N into the appropriate IP address of the network intercom. The database 54 may be located inside or outside the node 3B_26. After knowing the IP address of the appropriate network interworking switch 50, the point 3B-26 sends an IP carrier signal transmission message 3B_3 to the network interrogator 50. The IP carrier signal transmission message 3B · 3 includes connection information received from node 3b_n, such as the e.164 address of node 3B-N and the SUGR of node 3B_N, and the network interrogator 50 is used to establish Connected to this node 3B-26, which is the connection signal transmission initiator, necessary for one-way connection, connection information (such as one-way positive connection information [IP address, terminal identification code such as UDp port number]). When receiving the IP carrier signal transmission message 3B-3, the network interworking switch 50 will send a q.aa12 towards the node 3B-N according to the received E · 164 address of the node 3B-N. Create Request "message SB_4. Receiving a q.aa12 "establishment request" message 3B-4 from the network interworking gate 50 will cause the node 3B-N to issue a "Qiu Qiu 12" towards the network interworking gate 50 "Message 3B-5. When the network interworking switch 50 receives the q aal2 "establishment confirmation" message 3B-5 from the node 3B · N, the network interworking switch 50 will send out an IP (please read the precautions on the back before (Fill in this page)

Line '26- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 516294 A7 B7 V. Description of the invention (24) The Ministry of Economic Affairs Central Standard Bureau staff consumer cooperative prints a response message 3B-6 to node 3B- 26. The IP response message 3B_6 includes the connection information needed to establish a one-way connection from the node 3B-26 to the network intercom gate 50 (ie, one-way positive connection information [Ip address, like UDP Terminal ID]]. There are indeed various ways or options to implement the network interworking operation according to the q.aal2 signal transmission, as outlined in Figures 3A and 3B. The first of these options can be a signal transmission protocol calibrated with an IP on an IP network, as shown in Figures 4A and 4B. The second example option is to use the New 12 signal transmission to and from the IP node on the IP network, as shown in Figure 58 and Deng. For the sake of simplicity, Figs. 4A-4B and Figs. 5A-5B mainly show the control-oriented signal transmission of the radio access network and the transmission network, and do not describe the internal functions of the nodes and the network interlocking device in detail. Basically, on the one hand, the options of FIGS. 4A and 4B, and on the other hand, the options of FIGS. 5A and 5β, are a subset of the generalized implementation method already stated in FIGS. 3A and 3B, and therefore (unless otherwise noted (Except those) can be interpreted roughly in a manner consistent with FIGS. 3A and 3B. Figures 4A '4B and Figure 5A, the message number ^ in hua are different from those in Figures 3A and 3B in a broad sense, but the messages with equivalent suffixes do have a similar purpose. In addition, it should be noted that although this user-facing aspect appears in this implementation, the markings of these user-facing aspects in some drawings have not been shown in detail. Network interworking according to Q.AAL2 signal transmission: Option to use π calibration signal transmission protocol on _ιρ network Figure 4A and 4B illustrate some basic events, these events will occur in the IP network using calibration signal transmission protocol To make a press _Signal -27 · This paper is a financial institution iNS) A4 secret (210X29 ^ ·--I · —1 · (Please read the precautions on the back before filling this page)

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Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 516294 A7 B7 V. Description of Invention (25) In the option of network interconnection for transmission. In this option, an IP calibration signal transmission protocol will be used on the Π > network. The present invention is not limited to the use of any specific IP protocol, and any IP protocol can be used as long as the agreement is consistent with anyone who can carry the desired information (the details will be described later). The IP calibration signal transmission protocols applicable to the present invention include both SIP and H.245. SIP is a "session initiation agreement", see IETF RFC 2543. For H.245, see ITU-T Recommendation H.245 Γ Control

Protocol for Multimedia Communication. " The IP protocol used in the present invention may be a conventional existing protocol or a new streamlined IP calibration signal transmission protocol. The IP calibration signal transmission protocol must carry information to implement the IP signal transmission options of the present invention, including the following: (1) Unidirectional IP connection information (IP address, such as a terminal identification number for a UDP port number); (2) The destination address of the AAL2 network, such as the E. 164 address and the SUGR; (3) The potential bandwidth and QoS information used by the network interoperator, so as to construct the appropriate attributes and on the appropriate VCC This item is AAL2 connected. That is, in a similar manner to FIG. 3A and FIG. 3B, in FIGS. 4A and 4B, nodes 4A-26 and 4B-26 are connection signal transmission initiators (Γ start node), and nodes 4A-N and 4B-N are Connection-signal transmission receiver. FIG. 4A illustrates a case where the connection signal transmission initiator nodes 4A-26 are an ATM node and the nodes 4A-N are IP nodes. In contrast, FIG. 4B describes a connection signal transmission initiator node 4B-26 is an IP node and node-28- This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) IIII (Please read the back first (Notes for filling in this page)

^ ΙΓ line 516294 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Invention Description (26) 4B-N is the case of ATM nodes. That is, as described in the broad sense of FIG. 3A, according to an implementation sub-set scenario, in the scenario of FIG. 4A, the ATM connection signal transmission initiator node 4A-26 will send an activation application message 4A-1 to other nodes ( For example, to the node 4A-N), the application startup program is started. In response, the IP basic node 4B-N will return a start response message 4A-2. The start response message 4A-2 includes a node 4B-N address (such as an E.164 address) and a SUGR as a link identification. FIG. 4A shows that the connection signal transmission initiator node 4A-26 will then send a q.aal2 “establishment request” message 4A-3 to the network interworking switch 50 on the transmission layer or through an AAL2 switch. That is, as shown in FIG. 4A, the "establishment request" message 4A-3 includes the following information components ... (1) the VCC / CID sent to the network interworking switch 50; (2) the terminal node (as in this scenario) Node 4A-N) E.164 address; (3) ALC [AAL type 2 link characteristics]; (4) OSAID; (5) SUGR of terminal node (node 4A-N), and other Q.2630 Related elements of future functions, such as quality of service (QoS) management. In a manner similar to the scenario of FIG. 3A, in the scenario of FIG. 4A, the network interworking switch 50 queries the database 52 to translate the AAL2 network address, that is, the E.164 address, into the terminal node ( Such as the IP addresses of nodes 4A-N). When the IP address of the terminal node is obtained, the network interworking switch 50 sends a carrier signal transmission message to the nodes 4A-N. The message 4A-4 is labeled as "request message" 4A-4 in Fig. 4A. The request message 4A-4 includes the IP address of the network intercom switch 50 (Ipg); one is from the network intercom switch-29- This paper size applies to the Chinese National Standard (CNS) A4 specification (210 X 297 public) Li) (Please read the notes on the back before filling this page)

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Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 516294 A7 B7 V. Description of the invention (27) 50 The connection identification code (CEIDg); and the SUGR of the terminal nodes (such as nodes 4A-N). After receiving the request message 4A-4, the IP terminal or the receiving node (such as 4A-N) will respond with an IP response message 4A-5, which can correspond to the message 3A-5 in Figure 3A. The IP response message includes information necessary to establish a one-way connection from the network interconnector 50 to the IP nodes 4A-N. The response message 4A-5 includes the IP address IPr of the terminal node (such as the receiving node 4A-N), and the connection identification code (CEID 0) provided by the terminal node. After the IP response message 4A-5, the network interworking switch 50 will be directed towards the connection activation node, node 4A-26, and send a q.aal2 "establishment" confirmation message 4A-6. The "establishment" confirmation Message 4A-6 includes two information elements, DSAID and OSAID. The information element DSAID is "destination signal transmission-related identification code"; and the information element OSAID is "speech signal transmission-related identification code." These DSAID and OSAID are applications In q.aal2 signal transmission. During the connection establishment signal transmission, these DSAID / OSAID are selected by each node and passed to the adjacent node as a reference to the control connection-oriented. When a connection is marked After being released, a release message will be sent along with these signal transmission identification codes, so that the nodes can know exactly which connection should be released. As for the scenario of FIG. 4A, FIG. 4A (1) shows when it is received. Frame Association (FP) The basic information contained in the data. When the frame protocol data is transmitted on the IP network, the destination IP address, connection identifier and frame protocol data are transmitted. Figure 4A (1) also Displayed at ATM node 4A-26 and the network -30- This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page) Order

516294 A7 B7 printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (28) A switch 100 appears between the intercommunication switches 50, and on the one hand, the link between the ATM node 4A-26 and the switch 100 The information carried on the other hand is the information carried on the link between the switch 100 and the network interworking switch 50. In FIG. 4A (1), IP1 refers to the IP address of the receiving node (ie, node 4A_n), and CEIDr also refers to the connection identifier of the receiving node. Conversely, IPg refers to the IP address of the network interconnector 50, and CEIDg also refers to the connection identifier of the network interconnector. The displayed IP address is included in the destination IP address block of the corresponding IP header. In the situation shown in FIG. 4B, the situation is reversed (ie, as shown in FIG. 3B), because nodes 4B-26 are an Internet Protocol (ip) node, and node 4b_n is an ATM node (ie, a 3GPP R99 node). The connection signal transmission initiator IP node 4B-26 starts the application startup procedure by sending a startup application message 4B-1 to other nodes (such as to the node 4B-N). In response, the ATM basic node 4B-N will return a start response message 4B-2. The start response message 4B-2 includes an address of a node 4B-N (such as an E.164 address) and a SUGR from a receiving node (such as the node 4B-N). That is, as shown in FIG. 3B, the database 54 is queried to translate the E.164 address of the received node 4B_N into the IP address of the appropriate network interworking switch 50. When the IP address of the appropriate network intercom switch 50 is known, the SRNC node 4B-26 sends an IP carrier signal transmission message to the network intercom switch 50. In the option of FIG. 4B, the IP carrier signal transmission message is labeled as "request message" 4B-3. The request message 4B-3 includes the connection activation section (please read the precautions on the back before filling this page)

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1 31-This paper size applies to China National Standard (CNS) A4 specification (mm) 516294 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. IP of the invention (29) points (SRNC node 4B-26) Address; the connection identification code (CEIDsrnc) provided by the connection initiating node; the address of the terminal node (such as node 4B-N), and the SUGR of the terminal node. Thus, in the option of FIG. 4B, the parameters required by the gate 50 to generate a q, aal2 message will be included in the "request message" 4B-3. After receiving the IP carrier signal transmission message in the form of the "request message" 4B-3, the network interworking switch 50 will send a "establishment request" message 4B-4 towards the node 4B-N. The "establishment request" message 4B-4 is a q.aal2 message, including the following information components: (1) VCC / CID sent to the network intercom gate 50; (2) terminal node (such as the node in this scenario) 4B-N); (3) ALC; (4) OSAID; and (5) SUGR of the terminal node (node 4B-N). When the establishment request message 4B-4 is received from the network interconnection gate 50, the node 4B-N will be made to send a q.aal2 "establishment confirmation" message 4B-5 toward the network interconnection gate 50. The "establishment" confirmation message 4B-5 includes two information elements, DSAID and OSAID. When the network interconnector 50 receives the q.aal2 "establishment confirmation" message 4B-5 from the node 4B-N, the network interconnector 50 will send an IP response message to the SRNC node 4B-26 . The IP response message is labeled "Response Message" 4B-6 in Figure 4B. The "response message" 4B-6 includes the IP address of the network interworking switch 50 and the connection identification code (CEIDgateway) provided by the network interworking switch 50. For the scenario of Figure 4B, Figure 4B (1) shows the basic information that will be included when the sender is the frame agreement data. Similarly, as shown in Figure 4A (1), -32- (Please read the precautions on the back before filling this page) Order

The paper size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 516294 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (30) '' ~ When sending information through IP network When the frame agreement data is transmitted, the destination IP address, connection identifier and frame agreement data are transmitted. That is, as shown in FIG. 4A (J) and FIG. 4B (1), the switch 100 is also shown, but this time it is located between the ATM node 4B-N and the network interworking switch 50. In FIG. 4B (1), ipsrnc refers to the IP address of the connection initiator node (ie, node 4B-26) similarly, and CEIDsrnc also refers to the connection identification code of the connection initiator node. That is, as shown previously, IPg refers to the IP address of the network intercom device 50, and CEIDg also refers to the connection identification code of the network intercom device 50. The displayed IP address is included in the destination IP address field of the corresponding IP header. Q. AAL2 signal transmission for network interworking. · Option to use Q · AAL2 signal transmission on an IP network. Figures 5A and 5B show that some will use the Q-shaped 12 signal transmission on the IP network to and from the IP node. The basic event that occurs with the option to implement the network interworking. In the specific example illustrated in Figures 5A and 5B, SCTP is used for signal transmission over IP networks. That is, as shown in FIG. 3A and FIG. 3B, in FIGS. 5A and 5B, nodes 5A-26 and 5B_; 26 are connected to the signal transmission initiator (starting node), and nodes 5A-N and 5B-N are connection-signals. Transmission receiver. Fig. 5a illustrates the case where the connection signal transmission initiator nodes 5 A-26 are an ATM node and the nodes 5A-N are an IP node. In contrast, the case where the connection signal transmission initiator nodes 5B-26 are an IP node and the nodes 5B-N are-ATM nodes is illustrated in Fig. 5B. That is, as shown in Figure 3A in a broad sense, according to the implementation of a sub-set situation, as shown in Figure -33- (Please read the precautions on the back before filling this page)

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This paper size applies to the Chinese National Standard (CNS) A4 specification (210 × 297 mm). —I »1---1 516294 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Inventory (31) 5A The ATM connection signal transmission initiator node 5A-26 will start the application startup procedure by sending a startup application message 5A-1 to other nodes (for example, to the nodes 5A-N). In response to this, the IP basic node 5A-N will return a start response message 5A-2. The start response message 5 A-2 will include the address of a node 5 A-N (such as E · 164 address) and a SUGR. 値 俾 as a link to identify another | J. The connection terminal ID (CEID) of this node 5A-N can be used as the SUGR in the q.aal2 message. In other words, in the start response message 5A-2, the IP basic node 5A-N has already sent its address and SUGR in the RNSAP to the SRNC node 5A-26. Figure 5A shows that the connection signal transmission initiator node 5A-26 will then send a q.aal2 "establishment request" message 5A-3 to the terminal node (such as nodes 5A-N) on the transmission layer. The "establishment request" message 5A-3 includes the following information elements: (1) the VCC / CID sent to the network intercom 50; 164 addresses; (3) ALC; (4) OSAID; (5) SUGR of terminal nodes (nodes 5A-N). When the network interworking switch 50 receives the "establishment request" message 5A-3 from the SRNC ATM node 5A-26, the network interworking switch 50 will query a database to find the E.164 address Translated into the IP address of the end node (nodes 5A-N). After obtaining the IP address of the terminal node, the network interworking switch 50 will select a source IP address for receiving q.aal2 signal transmission and user data. The network interworking switch 50 sends an IP carrier signal for transmission to the nodes 5A-N by using IP transmission (such as according to the IETF SCTP standard [a standard method for sending SS7 basic messages on an IP network]). The selected source IP address will be used by the "Source" IP address field in the IP header -34- (Please read the precautions on the back before filling this page)

Order

This paper size applies to China National Standard (CNS) A4 (210X297 mm) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 516294 A7 B7 V. Description of Invention (32). The destination IP address block of the IP header is an address related to the terminal address. According to the implementation options described in Figure 5A, this message is labeled as "Create Request" message 5A-4. The "establishment request" message 5A-4 includes the connection identification code (CEIDg) provided by the network intercom 50; the address of the terminal node (such as nodes 5A-N); ALC, OSAID, and the terminal node SUGR. The network interconnector 50 may include its connection terminal identification code (CEIDg) in the q.aal2 "establishment request" message 5A-4. In this way, the CEID (CEIDg) to be used by the data directed to the network intercom 50 can be included in the identification block of the connection element (usually carrying the VCC / CID of AAL2). After receiving the q.aal2 "establishment request" message 5A-4 at nodes 5A-N, the IP address of the network interworking switch 50 can be obtained from the IP of the q.aal2 "establishment request" message 5A-4 The source address of the header is identified. The IP terminal node (nodes 5A-N) will return a "establishment confirmation" message 5A-5 towards the network interworking switch 50. The "establishment confirmation" message 5A-5 basically corresponds to the IP response message 3A-5 shown in Fig. 3A. This "Create Confirmation" message 5A-5. Including DSAID and OSAID. After receiving the "establishment confirmation" message 5A-5 at the network interworking switch 50, it will cause the network interworking switch 50 to send a "establishment confirmation" message 5A-6 to the connection start node, node 5A-26. The "establishment confirmation" message 5A-6 also contains DSAID and OSAID information components. In the scenario shown in FIG. 5A, the IP nodes 5A-N will use the “create request” message 5A-4 for the user data (such as the frame agreement data [FP]) facing the network interworking switch 50. Source IP address, and use CEIDg -35- This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page)

Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs of the 1T. 516294 A7 ~ ____ _B7 V. Description of the invention (33) As the connection identification code in this direction (that is, towards the network intercom gate 50). For the user data heading towards the terminal node (nodes 5A-N), the network interworking switch 50 will use the IP address corresponding to the terminal address, and will use the connection identifier provided by the SUGR parameter End node CEID. In the scenario of Figure 5B, the situation is reversed (ie, Figure 3B), because SRNC nodes 5B-26 are an Internet Protocol (IP) node, and nodes 5B-N are an ATM node (ie, a 3GPP R99 node). . The connection signal transmission initiator IP node 5B-26 will start the application startup program by sending a startup application message 5B-1 to other nodes (such as to the node 5B-N). In response to this, the ATM basic node 5B-N will return a start response message 5B_2. The start response message 5B-2 includes a node 5B-N address (such as E.164 address) and a SUGR from a receiving node (such as node 5B-N). The IP SRNC node 5B-26 will select A source IP address to receive q.aal2 signal transmission and user data. As shown in FIG. 3B, the person will query a database to translate the E.164 address of the received node 5B-N into the IP address of the appropriate network interconnector 50. When the IP address of the appropriate network interworking switch 50 is known, the SRNC node 5B_26 sends a "Setup Request" message 5B-3 to the network interworking switch 50. The "establishment request" message 5B-3 can be transmitted over the IP network using the ffiTF SCTP protocol. The selected source IP address will be used by the "Source" IP address block in the IP header. The destination IP address block in the IP header is the address associated with the terminal address received in the start response message. Figure -36- This paper size applies Chinese National Standard (CNS) A4 specification (21Gx297mm) --- (Please read the precautions on the back before filling this page}

516294 Printed by the Consumer Standards Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (34) The "establishment request" message 5B-3 described in 5B includes the connection identification code (CEIDsrnc) provided by the connection start node; The address of the terminal node (such as nodes 5B-N); ALC; OSAID; the OSAID of the connection initiating node; and the SUGR of the terminal node. The SRNC node 5B-26 will need to know the IP address of the network interconnector 50. This information can be obtained in various ways, such as, for example, mapping the pre-configured settings of the IP address of the appropriate gate based on the address received from the receiver node (such as node 5B-N). When deciding where to send q.aal2 messages, the ATM q.aal2 signal transmission performs a similar action. After receiving the "establishment request" message 5B-3, the network interworking switch 50 will send a "establishment request" message 5B-4 towards the node 5B-N. The "establishment request" message 5B-4 includes the following information elements ... (1) the VCC / CID sent to the terminal node (node 5B-N); (2) the address of node 5B-N; (3) ALC; (4) OSAID; and (5) SUGR of terminal nodes (nodes 5B-N). In this way, the network interworking switch 50 will send an "establishment request" message 5B-4 to the ATM basic node 5B-N according to the E.164 address and the SUGR received from the IP SRNC node 5B-26, and then Establish an ATM connection. When receiving the "establishment request" message 5B-4 from q.aal2 from the network interworking switch 50, the node 5B-N will make a "establishment confirmation" message 5B-5 towards the network interworking switch 50 . The "establishment confirmation" message 5B-5 includes two information elements, DSAID and OSAID. When the network interconnector 50 receives the "establishment confirmation" message 5B-5 from the node 5B-N, the network interconnector 50 will send a "establishment confirmation" message 5B-6 to the- 37- This paper size is in accordance with Chinese National Standard (CNS) A4 (210X 297mm) (Please read the precautions on the back before filling this page) Clothing, 11

516294 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the Invention (35) SRNC node 5B-26. The "establishment confirmation" message 5B_6 includes the DSAID (the OSAID parameter in the "establishment request" message received) of the SRNC node 5B-26; and the OSAID of the network interworking switch 50. The OSAID parameter in this message will also be used as the traffic-oriented Γ connection terminal identification code for the user from the IP node 5B-26 to the network intercom 50 ". The "establishment confirmation" message 5B-6 will be sent to the IP address received as the IP source address in the "establishment request" message 5B-4. The OSAID in the "establishment confirmation" message 5B-6 will be used as a user-oriented connection identification code for the user data from the IP SRNC node 5B-26 to the network interconnector 50. The SRNC node 5B-26 will use the IP source address in the "establishment confirmation" message 5B-6 as the destination address of the user data towards the network interworking switch 50, and use the network interworking switch 50 6 The OSAID is used as the connection identification code (CEIDg) of the network interworking switch 50. It is possible that the source IP address in the "establishment confirmation" message 5B-6 and the "establishment request" message are not the same as the destination address. In the "establishment confirmation" message, the DSAID and destination address of the SRNC 5B-26 uniquely bond the "build JL request" and "build JL confirmation" messages in the IP SRNC 5B-26. For the scenario shown in Figure 5A, Figure 5A (1) shows the basic information contained when sending the frame agreement [FP] data (ie user data). The IP addresses shown (IPr and IPg) are included in the IP destination address field of the IP header. CEIDr is the SUGR used in the connection settings. IPr is the IP address corresponding to the mapping from the E.164 terminal address. Similarly, for the scenario of Figure 5B, Figure 5B (1) shows what is included when sending out the frame agreement information -38-(Please read the precautions on the back before filling this page)

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LINE This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) 516294 A7 V. Description of the invention (36) Basic information. The IP addresses shown (IPsrnc and IPg) are included in the IP destination address field in the ιρ header. Figures 5A (1) and 5B (1) basically correspond to the traffic flow of Figures 4A (1) and 4B (1) described above, respectively. Figures 6A and 6B show the protocol stacks on the ATM network and the IP network, respectively. 'This is shown in Figures 5A and 5B using the q and aal2 signals transmitted on the ιρ network to and from the IP node to implement the interworking function of this network. Of options. FIG. 6A and FIG. 6B show that the q.aa12 message is carried on the ATM (see FIG. 6A) or ιρ (see FIG. 6B). The M3UA applications shown are exemplary only. Other SCTP transfer methods are also applicable. In the description of FIG. 5A and FIG. 5B, the same Ip address used for the q.aal2 signal transmission by the network interconnector 50 is used for traffic. The node 5B-N can obtain the IP address from the IP header. The network interworking gate will obtain the IP address of the node 5B-N from the core message from the ATM SRNC 5B_26. Utilizing the optimization characteristics of application-level signal transmission In one of its characteristics, the present invention can also improve the situation where the nodes on both sides of the interface (such as Iu interface, Iur interface, or ^ shan interface) are IP_connected nodes. This kind of slavery characteristics. This optimization helps determine whether the two nodes are actually IP-connected nodes, and if so, exchanges IP information. However, if both nodes t are not IP-connected nodes, according to the present invention, the establishment of a transmission carrier with a network interworking function is performed. One possible mode of operation is to exchange the transmission information within the application signal protocol in a one-way manner only, and rely on a signal transmission conforming to 3Gpp version 99. Another_Insert carrier Another way to use signal transmission to exchange all transmissions -39- (210X297 mm)

Order

Line 516294 A7 B7 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (37) Transporter information. Both modes are supported as long as backward compatibility can be followed. For the convenience of explanation, these rules will be described in the following as an example scenario of a servo RNC (SRNC) node and a non-servo RNC (SRNC) node, but they have broad applicability to other nodes as mentioned above. The operating rules of the IP-connected SRNC node can be as listed in S1-S3: 51: The new IP-connected SRNC node includes uplink traffic in the "IP Transport Carrier Container" of the startup application control message The IP address and the IP terminal identification code make the other one be ignored by a non-IP node (ie, as ignored by a 3GPP R99 node). 52: If an IP transport carrier container is received from a node in an application control message, the transport carrier will be considered as already established. 53: If the IP transport carrier container is not received from the node in the application control response message, but instead receives a normal AAL2 response message (such as according to an AAL2 address and reference), it will resort to the first Mode (interconnecting by q.aal2 signal and signal transmission network as before). The operating rules of the IP-connected non-SRNC node can be listed as D1-D3: D1: If the non-SRNC node receives an application control message without an IP transport carrier container, the non-SRNC node will assume the SRNC The node is an AAL2 / ATM node, and thus the non-SRNC node will return the transmission address in an AALWATM compatible format (eg, according to the 3GPP R " specification). Therefore, it will resort to the first mode (interoperate according to the q.aal2 signal transmission network as before). D2: If the non-SRNC node receives an application control message with IP • 40-

•-J- —--_-- J (Please read the notes on the back before filling this page)

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The paper size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm). Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Include a container in the RNSAP response message. The IP transport carrier container (and therefore the response message with the RNSAP) includes the IP address and IP terminal identification code for the downlink traffic. Figures 7A, 7B, and 7C are example scenario descriptions for optimizing the characteristics for this purpose. Again, for simplicity and ease of explanation, these scenarios are scenarios of non-limiting SRNC nodes and non-SRNC nodes. Figure 7A shows the communication between an ip SRNC source node 7A-26 and a non-SRNC IP node 7A-N. According to rule si, the startup application message 7A_1 sent by the source node 7A-26 of the ip srnc will include _ρ transmission carrier routers with an IP address and an IP terminal identification code for uplink traffic. After receiving the startup application message 7A-1, the non-srnC IP nodes 7A-N will detect the presence of an IP transport carrier container and will send a startup response message 7A-2 as required by the rule. This includes: An IP transport carrier container. The IP transport carrier container contained in the start-up response message 7A-2 has an IP address and an IP terminal identification code for downlink traffic. In the scenario of Fig. 7a, when the start response message 7A-2 is received, the transport carrier will be considered as already established. Fig. 7B shows another scenario in which the IP SRNC source node 7b26 sends an application start message 7B-1 to the non-IP node 7B_n. That is, as shown in the situation in FIG. 7A, the start-up application message 7B-1 includes an IP transmission carrier port having an IP address of an uplink slot traffic and an IP terminal identification code. But ”‘ After receiving the start application message 7B-1, the non-IP node is ready to skip the IP transport carrier container included. Therefore, the non-IP node (please read the notes on the back before filling out this page)

-41- 516294 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention (39) N only returns a start response message 7B-2 with an ATM transmission address in a non-IP format. That is, the start response message 7B-2 includes an AAL2 address and a SUGR. Therefore, according to rule S3, when the start response message 7B_2 is received, the transmission carrier will be considered as already established. The IP SRNC source node 7B-26 will resort to network interworking operations, such as the q.aal2 signal transmission network interworking as described above (as in the case of Figure 3A or Figure 3B). FIG. 7C shows another scenario (illustrating the application of rule D1), in which the non-IP SRNC node 7C-26 sends a start application message 7CM to the IP node 7C-N. Since the SRNC node 7C_26 is not an ιρ node, the start application message 7C-1 does not include the IP transport carrier container. The node 7C-N belongs to an IP node, and searches for the IP transport carrier container in the received startup application message, but the IP transport carrier valley device is not detected in the message 7C4, so the decision is concluded as The node sending the message 7C-1 (ie node 7C-26) is not an IP node. Therefore, the non- 卩 node 7C_n sends a start response message with an ATM carrier container. Therefore, in the scenario of FIG. 7C, as in the scenario of FIG. 7B, the srnc node 7B-26 will resort to network interworking operations, such as the signal transmission network interworking as described above (for example, FIG. 3A or FIG. 3B). Case). -Ίί ： ~ 衣-(Please read the notes on the back before filling in this page

In view of the fact that the attempt to apply the optimized characteristics in the situation as shown in Figure 7B or Figure 7C is unsuccessful, the network interworking operation will be adopted to establish the transmission carrier as described above (as shown in the outline of Figures 3A and 3B) ). As such, the picture or FIG. 7C will not show the transmission layer signal transmission, and this will occur when the < optimization feature is used but unsuccessful results are obtained, the transmission layer signal -42-

516294 A7 --------- B7_ V. Invention (4 ();) The transmission of the number '~~~ ^ -— may be as shown in the other specific embodiments described above. Application signal transmission augmented by transmission layer network interworking Another mode of implementing the network communication of the present invention is related to consulting a transmission sound, .Broadway intercommunication gate, to obtain information to be included in the application signal transmission Address and link identifier parameters. In this mode, additional signal transmission occurs in conjunction with the application signal transmission. Obtaining application signal transmission parameters according to this mode of the present invention (such as the address and link identifier parameters to be included in the child application signal transmission message) does not involve network interconnection at the application signal transmission layer The operation or termination of the application signal transmission wheel, but a consultation of a network intercom gate for the transmission layer. An implementation example of obtaining application signal transmission parameters by consulting a transport-layer network intercom can be summarized as shown in Figure 8. In Figure 8, node 8_26 may be (but not necessarily) an SRNC node, and node 8_N may be, for example, a drifting RNC node (DRNC), a base station node, or a core network node. Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs. ~~ ~ 衣-(Please read the precautions on the back before filling this page)

In FIG. 8, the connection initiation node 8_26 is an ATM node, and the connection receiver node 8-N is an IP node, which has the optimization characteristic function as described above. When the IP node 8_N receives the startup application message 8-1, the remote IP node 8-N will notice that the connection startup node is not an ip node, but another type of node (that is, an ATM node). Therefore, according to the second mode of the present invention, the receiver node (the IP node sends an application augmented network interworking request (AppIW request) message M-1 to the network interworking gate 80. -43- This paper standard is applicable China National Standard (CNS) A4 specification (210 × 297 mm) Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 516294 A7 B7 V. Description of the invention (41) The purpose of this application is to expand the purpose of network interworking request message 8-1-1. Basically, it is to obtain the AAL2 address and SUGR to send back to the ATM node 8-26. The application augments the network interworking request message 8-1-1 and includes the following items: the receiving node (ie node 8-N) IP IPreceive; according to the connection node of the receiving node, another J code (CEIDreceive), and the request for the AAL2 address and SUGR (labeled as req [aal2 address, SUGR]) sent to SRNC 8-26, and for Request for both the IP address of the network interlock 80 and the connection identifier used by the network interlock 80 (labeled as req [IPg, CEIDg] in Figure 8). When the application is augmented After the network interconnection request message 8-1-1, the network interconnection gate 80 will obtain the requested information, and An application augmented network interworking response message 8-1-2 is sent to node 8-N. The application augmented network interworking response message 8-1-2 includes the AAL2 address (AAL2g) of the network interworking gate 80 ; The SUGR (SUGRg) of the network intercom switch 80; and the IP address (Ipg) of the network intercom switch 80; and the CEID (CEIDg) of the network intercom switch 80, all as the application expands The requester mentioned in the network interworking request message 8-1-1. In this way, the network interworking gate 80 and the IP receiver node 8-N can exchange two-way IP connection information. The network interworking response message is amplified from the application. According to the information obtained in 8-1-2, the receiver node (ie node 8-N) can send a start response message 8-2 to the ATM base point SRNC node 8-26. The start response message 8-2 includes the network The AAL2 address (AAL2g) of the interoperable gate 80 and the SUGR (SUGRg) of the interoperable gate 80 of the network, that is, the application obtains the network interoperable response message 8_ 1-2 as obtained by the application. After responding to the message 8-2, the ATM basic SRNC node-44-This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) ϋϋ »ιϋ m · -r- · 1 ml nn ϋϋ fl. fl ^ i— • ^ 1 (Please read the precautions on the back before filling this page) Order --- line 516294 A7 B7 V. Description of the invention (42 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 8 -26 will use the "establishment request" message 8_3 to establish an AAL2 connection with the network. In this regard, the connection information of the IP network is already established, so the complete connectivity is ready for the IP network. Therefore, the network interworking receiver 80 responds to the "establishment request" message 8_3 with a "establishment confirmation" message 8.4. The "establishment request" message 8_3 and the "establishment confirmation" message μ have substantially the same parameters as the AAL2 message shown in FIG. 5A. For the application signal transmission expanded by the transport layer network interworking, the graph is used as an example scenario when the connection start node is an IP basic node and the connection receiver node is an ATM node. For the scenario shown in FIG. 8, when the user data is shipped out, the basic information contained can be regarded as, for example, referring to the traffic flow of FIG. 4A and FIG. 4B, respectively, described previously. In the case of the 111 interface, the Msc can provide ATM transmission parameters, and can obtain various ATM and IP parameters from the gate before sending the start application message. The startup application message will contain the ATM transmission parameters obtained from the gate. The RNC then establishes an AAL2 connection with the gate. Signal transmission according to the tunneling mechanism Another mode for implementing the network interworking of the present invention is the tunneling mode. When it is not required to establish a transmission connection before sending the data, and it does not matter which node initiates the AAL2 connection, a tunneling mechanism can be used. In the tunneling mechanism ', two independent and unidirectional streams are established on the IP and AAL2 sides. For the follow-through mechanism, the carrier transmission information can be included in the application signal transmission information. FIG. 9A illustrates the situation of a first tunneling operation in which data is sent from an IP node to an ATM node. In the description of FIG. 9B, the data is applicable to China at 45 MM scale. Jing (210x297i (please read the notes on the back first and fill in this form, ΐτ

Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 516294 A7 B7 5. The invention description (43) is sent from an ATM node 9A-N to an IP node 9A_26. FIG. 9A shows that the IP node 9A-26 has already received the E.164 address and SUGR (CEIDa) of the ATM node 9A-N by transmitting the message 9A-1 through the application control signal. In the code "CEIDa", the Γ a "indicates the ATM node 9A_N. Figure 9A is further shown. That is, as in the data stream 9A-2, the user data from the IP node 9A-26 is transmitted to the eight-node 1 ^ node 9 __: ^. In the user data stream 9A-2, an IP packet is constructed, and is routed to an ATM node using the E.164 address like an IPv6 packet. The CEID (SUGR) of the stream towards the ATM node is included in the application header. That is, as shown in the stack in FIG. 9A, the packet will be packed in another IP packet directed to the IP gate 90, so as to tunnel it to the IP gate 90. The IP gate 90's address is known in advance (if set first, or selected based on the E · 164 address). When the gate 90 receives the packet, they will check the packing address and CEID, and check whether the AAL2 connection for this connection identification code already exists. As long as the connection does exist, information about the connection is stored and used as an indication of the existence of the connection. At the same time, part of the connection information is the AAL2 connection towards the ATM node, which is derived from the destination address / CEID (SUGR) direct mapping. If there is no AAL2 connection corresponding to the destination address / CEID (SUGR), the UU will issue a gate 90 to the ATM node 9A-N, as shown in step 9A-3 in FIG. 9A. The connection will be directed in one direction towards the gate 90, and the traffic link parameters can be set to zero, so that no resources are used in that direction. -46- This paper size applies to Chinese National Standard (CNS) Α4 size (210X297mm) ξ clothing ------ order ---- ^ line. _ (Please read the precautions on the back before filling this page ) 516294 A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention Description (44) For the second case listed in Figure 9B, the data will be sent from the ATM node 9B-N to the IP node 9B-26. The ATM node 9B-N receives the IP address of the IP node 9B-26 and the CEID (CEIDsrnc) of the IP node 9B-26 through the application control signal transmission, as shown in message 9B-1. The ATM node 9B-N establishes an AAL2 connection with the IP gate 90, as shown in step 9B-2 of FIG. 9B. For the data flow indicated by 9B-3 in Figure 9B, the ATM node 9B-N will include the IP terminal (ie IP) in the "Servo User Transmission (SUT)" block of the q.aal2 connection request message. Node 9B-26). This AAL2 connection is also unidirectional from the point of view of resource allocation. When the gate 90 receives the connection request message, the gate 90 associates the SUGR and the IP address to the established AAL2 connection. For the data received on the link, the gate 90 will generate an IP packet with the destination address of the IP node received from the SUT. The IP packet will be included in the data stream shown in Figure 9B-4. The SUGR is treated as a CEID in the header. When the IP node 9B-26 receives the data, it will associate the CEID with the application. In this way, in the tunneling mechanism of the present invention, it is not necessary to use a transmission carrier signal transmission for the IP network. Steps in network interworking operations The present invention also covers many potential applications of network interworking steps. For example, there can be many steps of IP-ATM-IP network interworking (that is, an IP / ATM network interworking, and then an ATM / IP network interworking). An example of ATM-IP-ATM network interworking can be shown in Figure 10A, which is about a receiver from a remote ATM node 10A-N -47- (Please read the precautions on the back before filling out this Page) ·% clothing · Order

This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 516294 A7 B7 V. Address of the invention (45) / AGR connection starter node 10A-2 6 of SUGR, as shown in Figure 10A_1 . These two ATM nodes do not have an ATM connection with each other, but there is an IP network 10A-30 between the two ATM nodes. In this case, the ATM connection initiator node 10A-26 will send a q.aal2 signal transmission 10A-2 towards a network interworking node 10A-40. The interworking node 10A-40 sends a message 10A-3 to the IP address of another interworking node 10A-50. The message 10A-3 includes the address and SUGR 'of the ATM node 10A-N at the end and the IP address and the connection terminal identifier (CEID) of the second network interworking point 10A-50 that should be used to transfer information. ). The second network interworking node 10A-50 uses the destination octade! ^ Node address and 31; 011 to initiate an AL2 connection to the ATM node at that end, which is denoted as 10A-4. The ATM nodes 10A-N at this end return a setup confirmation message 10A-5 to the second network interworking node 10A-50. The second network interworking node 10A-50 sends a message 10A-6 with an IP address and CEID and some references for transmitting data to itself to the first network interworking node 10A-40, so that the The first network interworking node 10A-40 can associate this message with the established connection. Finally, the first network interworking node 10A-40 sends a setup confirmation to the starting ATM node 10A-26. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the notes on the back before filling this page) or another, there can be many steps for IP-ATM-IP network interworking. An example of IP-ATM-IP network interworking is shown in Fig. 10B. An IP connection initiator node 10B-26 is connected to a remote IP node 10B-N through the ATM network 10B-3. The node 10B-26 is connected to the ATM network 10B-3 via the network interworking node 10B-40; and the node 10B-N is connected to the ATM network 10B · 3 via the network interworking node 10B-50. -48- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 × 297 mm) Printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 516294 A7 B7 V. Description of the invention (46) For the convenience of explanation, the attached picture The ATM nodes in each ATM network are already listed in such a way that they are directly connected to the appropriate network interworking gate nodes. However, as far as the fact that AAL2 is a switching technology is concerned, it should be clear that one or more ATM switches can be located between the ATM node involved in the connection and the network interconnector node. It is possible that a node may have both an ATM and an Internet Protocol (IP) interface. In this case, the network interworking function can be performed in this node with both ATM and Internet Protocol (IP) interfaces (instead of separate nodes as described in the previous figures). In many previous examples, the E. 164 address is used as AAL2. Although the E.164 address can be specifically adapted and used for AAL2, it should be understood that the present invention is not limited to this, and other types of addressing methods can also be applied. Various specific embodiments of the invention can provide numerous advantages. Among the many advantages are the following: • Whether it is an ATM network or an IP network, connection activation is issued by the same node in a particular network architecture. • Signal transmission at this application layer (ie, radio access network layer) is not affected. For example, the signal transmission at the application layer (that is, the radio access network layer) will not be terminated, so that only transmission-related parameters in the signal transmission are changed. • Network interworking is best performed only within the transport layer. • Except for the specific implementation of tunneling, any user data will be sent. -49- This paper size applies to China National Standard (CNS) A4 specifications (210 × 297 mm) (Please read the precautions on the back before filling this page)

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516294 A7 B7 V. Description of the invention (47) Before establishing a transmission connection. • Provides gradual migration from AAL2 / ATM transmission to IP transmission, while still having complete connectivity between nodes. • Some nodes in the available network use only one transmission technology, while others use only other transmission technologies. • The outline architecture and principles of the 3GPP UTRAN R99 must still be retained, and only have the lowest impact on the application layer (such as radio access network) protocols. The present invention has been disclosed in accordance with the merging of the preferred embodiments that are now considered to be the most practical and appropriate. However, it should be understood that the present invention is not limited to the specific embodiments of the present disclosure, but it does encompass a variety of Modifications and equivalent arrangements within the spirit and scope of the scope of patent application are attached. (Please read the notes on the back before filling this page)

Printed by the Employees' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs

Claims (1)

1. A communication system having an -application layer and a transmission layer, the system includes: a first node that uses a first transmission technology; a second node. That uses a second transmission technology; The first transmission technology and the second transmission technology are interconnected via a network to help establish transmission carriers between the first node and the second node, and are required to terminate or network-connect the application control signal transmission in its application layer. wheel. 2. For a system with a patent scope of 1 item, the application layer can execute a radio network layer procedure to start the power supply of a wireless communication system to access the transmission carriers in the network. 3. For a system with a scope of application of item 1 of the patent, the towel further includes an application layer network interworking switch connected between the first node and the second node. 4. The system of item # 3 in the scope of patent application, wherein the network interworking switch receives a setup request message carried by the first transmission technology, and constructs a second node carried in the mutual request message The address is converted into an address that can be used by the second transmission technology, and wherein the network interconnector uses the address that can be used by the second transmission technology to send a carrier signal to transmit the message to the first transmission technology. Two nodes. 5. The system according to item 4 of the patent application, wherein the first technology is ATM and the second technology is Internet Protocol (IP). 6. The system as claimed in item 5 of the patent scope, wherein the carrier signal transmission message is in accordance with the IP carrier control agreement and includes a link identification code obtained from the second node. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 516294 A8 B8 7. If the system of the scope of the patent application is applied, after receiving the carrier signal transmission message, the second node will send a response message to and, each other, the β IP response message includes Information for establishing a one-way connection from the network intercom to the second node. 8. If the system of item 7 of the patent application is applied, the network interlocking device will send the first node after the message. Upon receiving the IP response, a establishment confirmation message is sent to 9. Among them, the first node will benefit the address of the network interworking switch, and the carrier signal transmission message is used by the system such as the scope of the patent application for item 3. ; Ichiro's address to determine continued and where the first node will send out a network intercom. Page system, where the carrier signal is transmitted 10. If the scope of the patent application is that the message is in accordance with the IP carrier control agreement, and includes the address of a node and the link identification code obtained from the second node , And the IP connection information necessary for the network interconnector to establish a one-way connection with the _th node. '11. For a system with a scope of 10 patent applications, when the carrier signal transmission message is received, the network interworking gate sends a setup request message toward the second node, and when the setup request is received After the message is sent, the second node sends a setup confirmation message toward the network interconnection gate. 12. If the system of item 丨 丨 of the scope of patent application, wherein the establishment request message and the establishment confirmation message are q.aan messages. " 13. If the system of the U application for the scope of patent application, when the establishment confirmation is received, the paper size applies to the Chinese National Standard (CNS) A4 specification (21〇X 297 mm) 5 After confirming the message, the network interworking switch will send an IP response message towards the first node, and the response message includes the necessary information for the node to establish a one-way connection with the network interrogator. ιρ connection information. κ As in the system of item i of the patent application, the network interworking function can communicate the first technology and the second technology at the network between the first node and the second node. Tingru applied for the system of item i of the patent scope, wherein the network interworking function can interconnect the first technology and the second technology at a node different from both the first node and the second node. 16. · The system of claim 1 in the patent scope, in which the network interworking function can use the q.aal2 signal transmission to interconnect the first technology and the -technique ° 17 · If the scope of the patent application in the 16th System, where one of these transmission technologies is the Internet Protocol (IP), and wherein the network interworking function involves using the Internet Protocol (IP) to calibrate the k number transmission on the Internet Protocol (IP) network. 18. The system according to item 16 of the patent application, wherein one of the first node and the second node is an Internet Protocol (IP) node, and wherein the network interworking function involves an Internet protocol (IP) networks use q.aal2 signal transmission to and from Internet Protocol (IP) nodes. 19. If the system of the first scope of the patent application, where the first node is an IP connection node, the person will try to use the application layer signal transmission to establish a transmission carrier, but when unsuccessful, will call a network interworking Function Applies to Chinese National Standard (CNS) A4 specification (210X 297 mm) 510294 91. 11 at this paper size, A8 B8 C8 D8 6. Scope of patent application Establish the transfer carrier. 20. If the system of the scope of application for the patent item No.1, wherein the first node is an IP connection node, the person is sent to the IP transport carrier container of the second node in the start application control message, which will include useful In the uplink traffic, its IP address and IP terminal identification code, wherein if an IP transport carrier container from the second node is received in the start application control message, the transport carrier will be regarded as It is already established, otherwise the first node will call the network interworking function. 21 · If the system of the first scope of the patent application, a certain JP connection node obtains the transport layer network interworking gate address parameter 'from the transport layer network interworking gate to be included in the application layer delivered to the first node Signal transmission 22. The system of item 21 in the scope of patent application, wherein the first node is not an IP connection node but the second node is indeed an IP connection node, and when an application start message is received from the first node At that time, the second node will obtain the network address of the network interconnection gate and the link identification code of the network interconnection gate from the transport layer network interconnection gate, and then return it to the first node. The second node establishes a two-way IP connection with the network interworking node using a network intercom; and wherein the network address of the _ gate and the link identifier of the network interworking are established The connection to the network intercom. 23. · If the system of the first scope of the patent application, the tunneling mechanism will be used to interconnect the first technology and the second technology 24 · —A kind of application to a system with an application layer and a transmission layer Communication system This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 51: 6294, the system includes a first node using a first transmission technology, and a second node using a second transmission technology. The method includes a network to communicate the first transmission technology. And the second transmission technology to help establish transmission carriers between the first node and the second node, and the code must terminate or network the application control signal transmission in its application layer. The method of 24 items, which further includes executing a radio network layer procedure in the application layer, so as to establish a transmission carrier in a radio access network (RAN) of a wireless communication system. The method according to item 24, further comprising an application layer network interconnection gate connected between the Xiandilang point and the second node. 27. The method according to item 26 of the patent application scope, which is further included in the network The interworking gate receives a setup request message carried by the first transmission technology; converting the address of the second node carried in the setup request message into an address that can be used and used by the second transmission technology ;and The network interlocking device will use an address that can be used by the second transmission technology to send a carrier signal to transmit the message to the second node. 28. The method of item 27 in the scope of patent application, wherein the first The technology is ATM 'and the second technology is the Internet Protocol (IP). 29. The method of claim 28, wherein the carrier signal transmission message is based on the IP carrier control protocol, and includes The link identification code obtained by the second node. -5-This paper standard applies to China National Standard (CNS) A4 specification (21GX297 public love) '' A B c D 516294 30. The method according to item 29 of the scope of patent application, which further includes that after receiving the carrier signal transmission message, the second node sends an IP response message to the network interworking switch. The 1P response message includes Information for establishing a one-way connection from the network intercom to the second node. 31. The method according to item 30 of the scope of patent application, which further includes that after receiving the IP response message, the network interworking switch sends a establishment confirmation message to the first node. 32. The method according to item 26 of the patent application scope, further comprising: the first node will use the address of the second node to determine the address of the network intercom; and the first node will send a packet The sub-signal transmits a message to the network interlock. 33. The method of claim 32, wherein the carrier signal transmission message is in accordance with an IP carrier control protocol, and wherein the method includes including the address of the second node in the IP carrier signal transmission message. , The link identification code obtained from the second node, and the IP connection information necessary for the network interconnecting gate to establish an early connection with the first terminal. 34. The method according to item 33 of the patent application scope, which further includes: when the carrier signal transmission message is received, the network interworking switch sends a setup request message toward the second node; and After the establishment request message, the second node sends a establishment confirmation message toward the network interworking gate. -6-scale it home standard (CNS) A4 ^ _x297 public love) 1— -— 35. The method of claim 34 in the scope of patent application, wherein the establishment request message and the far establishment confirmation message are q.aal2 messages. 36. The method according to item 34 of the scope of patent application, which further includes that after receiving the establishment confirmation message, the network interworking switch will send an IP response message toward the first node U, and the IP response message includes the first A node is used to establish the IP connection information necessary for a one-way connection with the network intercom. 37. The method according to item 24 of the scope of patent application, which further comprises using a network interworking function to communicate the first technology and the second technology at one of the first node and the second node. 38. The method of claim 24, further comprising using a network interworking function to interconnect the first technology and the second technology at a node different from the first node and the second node. . 39. The method of claim 24, further comprising using the q.aal2 signal transmission to interconnect the first technology and the second technology. 40. The method of claim 39, wherein one of these transmission technologies is the Internet Protocol (IP), and further includes the use of the Internet Protocol (IP) on the Internet Protocol (IP) network Calibration signal transmission for network interworking operations. 41. The method of claim 39, wherein one of the first node and the second node is an Internet Protocol (IP) node, and further includes using q on the Internet Protocol (IP) network. .aa 丨 2 signals are transmitted to and from Internet Protocol (IP) nodes for network interworking operations. 42. The method of claiming 24 items of the patent scope, where the first node is a paper size, applicable to China National Standard (CNS) A4 (210X297 mm) 516294'91 / 11 t) B The ip connects to the node and further includes that the first node will attempt to use the application layer # number to establish the three transport carriers, but when unsuccessful, it will call a network interworking function to establish the transport carriers. 43. The method of claim 24, wherein the first node is an IP connection node, and the method further includes: the first node is sent an IP transmission payload to the second node in the start application control message. The sub-container will include its IP address and IP terminal identification code for uplink traffic; if an IP transmission carrier container is received from the second node in the start application control message, the The transmission carrier will be regarded as an established interconnection, otherwise the network interworking function will be called by the first node. 44. The method of claim 24, wherein the second node is indeed an IP connection node, and the method further includes: obtaining a transport layer network interworking gate address parameter from the transport layer network interworking device, Included in the application layer signal. Number transmitted to the first node. 45. The method of claim 44 in which the first node is not an IP-connected node but the second node is indeed an IP-connected node, and the method further includes: when received from the first node When the application message is started, the second node will obtain the network address of the network interconnection gate and the link identification code of the steel road interconnection gate from the transport layer network interconnection gate, and then return the first node. The second node establishes a two-way IP connection with the network intercom; and the paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) Binding ： ..:. 91.11.08 as B8 " — " —-- —_ C8 Six, --- ^ ^ i.e. point to the network address of the network intercom and the M of the intercom ,, " Minus code to establish a connection with the network intercom. 46. The method according to item 24 of the scope of patent application, which further comprises using a follow-up mechanism to interconnect the first technology and the second technology via a network. 47. A communication system having an application layer and a transmission layer. The application layer is an electrical network layer. The system includes: a first node connected to use the "Internet Protocol"; a second node ; Among them, the first node attempts to use the application-level signal transmission between the first node and the second node to establish a transmission carrier, but when it is unsuccessful, it will call the network interworking function in the transmission layer to establish the transmission carrier. child. 48. The system according to item 47 of the scope of patent application, wherein the first node will contain its IP address and usage in a rt transport carrier container sent to the second node in a start application control message. Terminal identifier on the uplink, and if the Ip carrier container from the second node is received in the application control response message, the carrier is considered to have been established, and Otherwise, the first node calls the network interworking function. 49. The system according to item 47 of the scope of patent application, further comprising an application layer network interworking switch connected between the first node and the second node. 50. If the system of the 49th scope of the patent application, the network interlocking device -9- This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) Receiving a setup request message carried by the first transmission technology 'and converting the address of the second node carried in the setup request message into an address that can be used by the second transmission technology, and wherein the network The intercommunication gate will use an address that can be used by the second transmission technology to send a carrier signal to transmit the message to the second node. 51. The system of claim 50, wherein the first technology is ATM, and the second technology is Internet Protocol (π). 52. The system of claim 51, wherein the carrier signal transmission message is in accordance with an IP carrier control protocol and includes a link identification code obtained from the second node. 53. If a system with a scope of 52 patents is applied, after receiving the Korean carrier signal transmission message, the second node will send an lp response message to the S network interlocking device. Information about the one-way connection of the network interconnecting gate to the second node. 54. According to the system of claim 53 in the scope of patent application, after receiving the response message of the ιρ, the network interworking switch sends a establishment confirmation message to the first node. 55. If the system of item 47 of the patent application is applied, the first node will use the address of the second node to determine the address of the network intercom, and the first node will send a carrier signal. Transmit bismuth information to the network intercom. 56. A method for use in a communication system having an application layer and a transport layer, the application layer being a radio network layer, the system comprising a first node connected to utilize an "Internet Protocol" and Section 2-10- This paper size applies to Chinese National Standard (CNS) A4 specification (210X297 mm) 5J6294 \ L · AB c D Application for patent scope point 'This method includes mouth test at the first node and the second node At the same time, application-level signal transmission is used to establish transmission carriers, but when unsuccessful, the network interworking function in the transmission layer is called to establish the transmission carriers. 57. The method according to item 56 of the patent application scope, further comprising: the first node includes an IP bit in an IP application carrier message sent to the second node in an IP application carrier container sent to the second node Address and the IP terminal identification code for the uplink; when the IP transport carrier container from the second node is received in the application control response message, the transport carrier is considered to have been established, Otherwise, the network interworking function is called. 58. The method according to item 56 of the patent application scope, wherein invoking the network interworking function further involves accessing an application layer network interworking gate connected between the first node and the second node. 59. The method according to item 58 of the scope of patent application, which further includes: After receiving a setup request message carried by the first transmission technology at the network interworking switch, the setup request message is included in the setup request message. Payload (the address of the second node is converted into an address that can be used by the second transmission technology; and the address that can be used by the second transmission technology is used to send a carrier signal to transmit the message to the second node. : 60. If the method of the scope of patent application 59, the first technology is ATM 'and the second technology is the Internet Protocol (IP). 61. The method of scope 60 of the patent application, which more Including press ιρ _ carrier -11- The control agreement constitutes this carrier trust. I lose it!] The link identifier obtained by the second node. 62. The method of applying for item & of the patent scope, which further includes that after receiving the carrier signal transmission message, the second node sends an ip response message to the network interworking switch, and the IP response message Includes information that can be used to establish a one-way connection from the network intercom to the second node. 63. The method according to item 62 of the patent application scope, which further includes that after receiving the IP response message, the network interworking switch sends a setup confirmation message to the first node. 64. The method according to item 63 of the scope of patent application, which further comprises: · the first Lang point uses the address of the second Lang point to determine the address of the network intercom; and the first node sends A carrier signal transmits a message to the network interconnection gate. 65 · —A communication system having an application layer and a transmission layer. The application sound is a radio network layer. The system includes: a first node; a second node connected to use the "Internet Protocol"; A transport layer network interworking switch; wherein the second node obtains the access parameter of the transport layer network interworking switch from the transport layer network interworking switch and is contained in the transfer time μ ^ ~ person ,,, 〇罘 In the transmission of the application layer k number, the first node has to use the network communication interlocking device of the transmission layer, so that the first node and the second party—the point between which the paper scale is applicable China National Standard (CNS) A4 specification (210X 297 mm) -12- standing carrier. 66. The system according to the scope of patent application No. 65, wherein the first node is not an IP connection node but the second node is an IP connection node, and when an application start message is received from the first node , The second node will obtain the network address of the network interconnection gate and the link identification code of the network interconnection gate from the transport layer network interconnection gate, and then return it to the first node, where the The second node establishes a two-way IP connection with the network interworking switch; and wherein the first node uses the network address of the network interworking switch and the link identifier of the network interworking switch to establish a connection with the network. Connection of road interlocking devices. 67 · —A method for a communication system with an application layer and a transport layer, the application layer is a radio network layer, the system includes a first node, once connected to use the "Internet Protocol The second node and a transport-layer network interworking switch; the method includes: the second node obtains the access parameters of the transport-layer network interworking switch from the transport-layer network interworking switch and is included in the submission In the application layer signal transmission of the first node, the first node is required to use the transmission layer network interworking switch to facilitate the establishment of a transmission carrier between the first node and the second node.丨 68. The method according to item 67 of the scope of patent application, wherein the first node is not an IP connection node but the second node is indeed an IP connection node, and further includes: when received from the first node When the application message is started, the second node will obtain the network interconnector's network from the transport network interconnector. 516294 (2) The address of the patent application road and the link identification code of the network interworking switch, so as to return the first node; the second node establishes a two-way IP connection with the network interworking switch; The first node uses the network address of the network interconnector and the link identifier of the network interconnector to establish a connection with the network interconnector. 0 -14- This paper standard applies to China National Standard (CNS) A4 size (210 X 297 mm)