CN1980173A

CN1980173A - Method for interconnecting wide-band wireless access-in network and optical access-in wide-band network and system therefor

Info

Publication number: CN1980173A
Application number: CNA2005101274438A
Authority: CN
Inventors: 查敏; 郑若滨
Original assignee: Huawei Technologies Co Ltd
Current assignee: Cui Shukun
Priority date: 2005-12-02
Filing date: 2005-12-02
Publication date: 2007-06-13
Anticipated expiration: 2025-12-02
Also published as: CN100486205C

Abstract

The method interconnect broadband wireless access (BWA) network with optical access broadband network (OAN) through any reference point from reference point T, a, ODN, and V inside OAN. Using the disclosed method can solve issue of interconnection between network of world interaction microwave access (WiMAX) and OAN. The invention provides a developing approach for OAN operation manager to develop WiMAX network. The invention puts forward tight coupling mode and loose coupling mode. In the tight coupling mode, building WiMAX network makes the most of line resources laid by original OAN network so as to avoid additional interconnection wiring and lower cost for building WiMAX network. In the loose coupling mode, WiMAX network and OAN network are already built by two operation managers so that interconnection and intercommunication are carried out between two networks in order to share services and application resources on two networks.

Description

Method and system for interconnecting broadband wireless access network and optical fiber access broadband network

Technical Field

The present invention relates to the field of communications, and in particular, to a method and system for interconnecting a broadband wireless access network and an optical fiber access broadband network.

Background

FTTH (fiber to the home) technology is a hot technology in the field of communications at present, but the technology has not been popularized and developed on a large scale so far due to obstacles in cost, technology, demand and the like. Due to the development of PON (passive optical network) technology, FTTH networks are entering a rapid development phase. New equipment and new network construction plans are continuously released.

FTTH is a final form of FTTx (Fiber access network) development, formally known as Fiber in the loop (Fiber in the loop). FTTx is classified into FTTH, FTTB (fiber to building), and FTTC (fiber to roadside) according to the location of an ONU (optical network unit). The high bandwidth of FTTx access enables better service of Triple Play (simultaneous transmission of voice, data and multimedia video). The technology of PON is mainly adopted for FTTx, and there are two types of currently mainstream relatively mature FTTx technologies: EPONs (ethernet passive optical networks) and GPONs (gigabit passive optical networks). EPON is a technology introduced in 2001, and the GPON standard was passed by ITU (international telecommunications union) in 1 month in 2003.

The major network architecture of the FTTx network is shown in fig. 1. A network reference architecture for an OAN (optical access network) in an FTTx network is shown in fig. 2.

The OAN is composed of a CPN (customer premises Network), an Access Network (Access Network), and a Service Node Function (Service Function point). The main network elements of the user ground network and the access network comprise: OLT (optical path termination), ODN (optical distribution network), ONU/ONT and adaptive function body AF. In the access network, AF (adaptation function) is an optional device, mainly providing the inter-conversion between ONU/ONT (optical network terminal) interface and UNI (user network interface), and AF may also be built in the ONU, so that the "a" reference point may not be needed. The AF may also be placed after the OLT to convert the OLT interface and SNI (service point interface) to each other. The AF may be regarded as a CPN function, or an AccessNetwork function. T is the reference point of the UNI interface, and V is the reference point of the SNI interface. The OLT provides a network interface for the ODN and is connected to one or more ODNs. The ODN provides a transmission means for the OLT and the ONUs. The ONU provides a user-side interface for the OAN and is connected to the ODN.

The customer's equipment CPE is connected to the AF via a UNI interface (e.g., via a DSL line), the AF converts the format of the message from the UNI interface format to an a-interface (e.g., Ethernet link) format that can be connected to the ONU, and the ONU converts the message to a format that can be transmitted over the ODN (e.g., EPON encapsulation, general framing encapsulation for GPON). And finally, the OLT converts the report into a message format of an SNI interface (such as an Ethernet link) and then accesses a service point.

A Broadband Wireless Access (BWA) device may provide a convenient Broadband access manner for a user. At present, broadband wireless access equipment based on a private protocol exists, and broadband wireless access equipment based on a standard protocol also exists. Broadband wireless access devices defined by the IEEE (institute of electrical and electronics engineers) 802.16 standard are a subset of a family of standards for broadband wireless access technologies. The BWA device includes a WIMAX (worldwide interoperability for microwave access) device.

IEEE802.16 is the first broadband wireless access standard, which has two major versions: "802.16-2004", a broadband fixed wireless access version of the 802.16 standard. "802.16 e", a broadband mobile radio access version of the 802.16 standard. Therein, 802.16-2004 only defines two kinds of network elements: BS (base station) and SS (subscriber station), wherein the BS and the SS are interconnected by adopting a broadband fixed wireless access technology; 802.16e also defines only two network elements, BS and MS (mobile subscriber station), which are interconnected using broadband mobile radio access technology.

The WiMAX forum defines ASN (access service network) and CSN (connectivity service network) on the basis of 802.16, and forms a broadband WiMAX network to support fixed, nomadic, portable, simple IP mobile or full mobile access. Taking 802.16e as an example, a diagram of a reference architecture of a WIMAX network is shown in fig. 3.

In FIG. 3, R1 is the reference point between MS/SS and ASN, R3 is the reference point between ASN and CSN; t is the reference point between TE and MS/SS in CPN network. The MS can be a simple Mobile Terminal (Mobile Terminal), and the TE can also be connected below the MS.

The WIMAX802.16e mobile network adopts a two-layer mobile management architecture, and adopts 802.16 security sublayer PKMv2 (private key management version 2) and DHCP (dynamic host configuration protocol) to provide terminal configuration and link control and management capabilities. Under mobile application, the wimax x802.16e mobile network employs MIP (mobile IP) -based three-tier mobility management between the ASN and the CSN.

IP three-layer routing technology can be adopted between the ASN exit node and the MS, and IP CS (IP convergence sublayer) is supported on an air interface; a two-layer network bridging technique may also be used between the ASN egress node and the MS, for example, to bridge an ethernet and support an ETHCS (ethernet convergence sublayer) over the air interface.

OANs are now rapidly developed, providing the possibility for users to implement high bandwidth access. The wireless access of the WiMAX provides conditions for realizing the mobility of the broadband access and expanding the coverage of the broadband. In the prior art, how to utilize the existing OAN network resources to perform the distribution of the WiMAX wireless base station and how to implement the interconnection between the WiMAX network and the OAN network do not exist.

Disclosure of Invention

In view of the problems existing in the prior art, an object of the present invention is to provide a method and a system for interconnecting a broadband wireless access network and an optical fiber access broadband network, so as to solve the problem of interconnecting a WiMAX network and an OAN broadband network.

The purpose of the invention is realized by the following technical scheme:

a method of interconnecting a broadband wireless access network with a fiber access broadband network, comprising:

and interconnecting the broadband wireless access BWA network with the optical fiber access OAN broadband network at any one reference point of a reference point T, a reference point a, a reference point ODN and a reference point V in the OAN broadband network.

The BWA network comprises a worldwide interoperability for microwave access WIMAX802.16-2004 network or WIMAX802.16e network.

The method specifically comprises the following steps:

and interconnecting the base station BS of the WIMAX802.16-2004 network with the OAN broadband network through any one mode of a two-layer bridging-based mode and a three-layer routing-based mode within the OAN broadband network.

The method specifically comprises the following steps:

the base station BS of the WIMAX802.16-2004 network, which is integrated with the adaptive function AF function, is interconnected with the OAN broadband network through a reference point a in the OAN broadband network based on any one of a two-layer bridging mode and a three-layer routing mode.

The method specifically comprises the following steps:

the base station BS of the WIMAX802.16-2004 network, which integrates the functions of the AF and the optical distribution network ONU, and the OAN broadband network are interconnected through a reference point ODN in the OAN broadband network in any mode of a mode based on two-layer bridging and a mode based on three-layer routing.

The method specifically comprises the following steps:

and interconnecting the base station BS of the WIMAX802.16-2004 network with the OAN broadband network through a reference point V in the OAN broadband network in any one mode of a two-layer bridging-based mode and a three-layer routing-based mode.

The method specifically comprises the following steps:

in the mode based on the two-layer bridging, in a path from the terminal equipment TE to the service point function SNF, the two-layer bridging is adopted on the customer premises network CPE and the SNF, the two-layer wireless access of 802.16-2004 is adopted between the base station and the subscriber station, and the safety architecture of the PKM is managed between the SS-BSs along with the protocol key of the 802.16 safety sublayer.

The 802.16-2004 two-layer wireless access supports an Ethernet convergence sublayer ETH CS on an air interface.

The method specifically comprises the following steps:

in the three-layer routing mode, in the path from TE to SNF, the terminal equipment, the base station and the SFN are three-layer network elements, 802.16-2004 three-layer wireless access is adopted between the base station and the subscriber station, and the security architecture of PKM of the 802.16 security sublayer is adopted between SS-BSs.

The 802.16-2004 three-layer wireless access supports IP convergence sublayer IP CS on an air interface.

The method specifically comprises the following steps:

the WIMAX802.16e network is interconnected with the OAN broadband network through any one mode of a mode based on two-layer bridging and a mode based on three-layer routing in the OAN broadband network through an Access Service Network (ASN).

The method specifically comprises the following steps:

the WIMAX802.16e network is interconnected with the OAN broadband network through any one mode of a two-layer bridging mode, a three-layer routing mode, a two-layer access mode and a three-layer access mode in the OAN broadband network through the ASN integrated with the AF function.

The method specifically comprises the following steps:

the WIMAX802.16e network is interconnected with the OAN broadband network through any one of a mode based on two-layer bridging, a mode based on three-layer routing, a mode based on two-layer access and a mode based on three-layer access.

The method specifically comprises the following steps:

the WIMAX802.16e network is directly interconnected with the OAN broadband network through the ASN through any one mode of a mode based on two-layer bridging, a mode based on three-layer routing, a mode based on two-layer access and a mode based on three-layer access in the OAN broadband network.

The method specifically comprises the following steps:

an interconnection unit IWU is arranged between the WIMAX802.16e network and the OAN broadband network, the WIMAX802.16e network is interconnected with the IWU through a CSN, and then is interconnected with the OAN broadband network through a reference point V in the OAN broadband network in any mode of a mode based on two-layer bridging and a mode based on three-layer routing.

The method specifically comprises the following steps:

the IWU provides the function of dynamic host configuration protocol relay DHCP RELAY, provides the DHCP Server for accessing SNF to WiMAX network, and the IWU also provides the functions of authentication, authorization and accounting Proxy AAA Proxy, and accesses the AAA Server of SNF.

The method specifically comprises the following steps:

in the two-layer bridge mode, in the path from TE to SNF, TE is hooked under the MS, and two-layer network bridge is adopted between the ASN egress node and the MS.

The two-layer network bridge supports the ETH CS on the air interface.

The method specifically comprises the following steps:

in the mode based on the three-layer routing, in the path from TE to SNF, TE is connected under MS, and IP three-layer routing is adopted between ASN exit nodes and MS.

The IP three-layer route supports IP CS on an air interface.

The method specifically comprises the following steps:

in the three-layer routing mode, in the path from TE to SNF, TE is not connected under MS, and IP three-layer routing is adopted between ASN exit node and MS.

The IP three-layer route supports IP CS on an air interface.

The method specifically comprises the following steps:

in the mode based on the two-layer access, optical access is adopted between Customer Premise Equipment (CPE) of an optical access network and an OLT, the CPE is accessed to a WiMAX network through the OLT or the CPE is directly accessed to an ASN network through AF, the access node of the ASN is connected with a service network CSN in a sharing mode, and the access node of the ASN is the two-layer access.

The method specifically comprises the following steps:

in the mode based on the three-layer access, optical access is adopted between the CPE of the optical access network and the OLT, the CPE is accessed into the WiMAX network through the OLT or the CPE is directly accessed into the ASN network through AF, the CSN is shared, and the entry node of the ASN is the three-layer access.

A system of a base station device and a fiber access broadband network, comprising:

base station equipment: the adaptive function body AF device is used for completing the access of a wireless user by interconnecting a pair or more than one pair of wired cables and an OAN broadband network at a reference point T, outputting the data packets or frames of the accessed wireless user to the adaptive function body AF device of the OAN broadband network after processing the data packets or frames, and transmitting the data packets or frames transmitted by the AF device to the wireless user after processing the data packets or frames;

an AF device: the optical network unit is used for interconnecting with the base station equipment at a reference point T through one or more than one pair of wired cables, carrying out optical network unit ONU access conversion processing on data packets or frames transmitted by the base station equipment, transmitting the data packets or frames to the ONU of the OAN broadband network through the wired cables, and transmitting the data packets or frames transmitted by the ONU through the wired cables to the base station equipment after processing.

The system comprises:

a remote power supply unit: the system is used for converting commercial power input or direct current input into high-voltage direct current, outputting the high-voltage direct current to base station equipment or simultaneously outputting the high-voltage direct current to the base station equipment and AF equipment through a wired cable comprising a twisted pair, and remotely supplying power to the base station equipment or simultaneously the base station equipment and the AF equipment.

The base station device includes:

base station wireless processing unit: the wireless subscriber access system is used for completing the access of wireless subscribers, transmitting data packets or frames of the accessed wireless subscribers to the base station wired service unit, and transmitting the data packets or frames transmitted by the base station wired service processing unit to the wireless subscribers;

a base station wired service processing unit: the system is used for interconnecting with an OAN broadband network at a reference point T through one or more than one pair of wired cables, processing data packets or frames transmitted by a base station wireless processing unit and transmitting the processed data packets or frames to AF equipment of the OAN broadband network, and processing the data packets or frames transmitted by the AF equipment and transmitting the processed data packets or frames to the base station wireless processing unit.

The base station wireless processing unit comprises one or more than one processing unit;

the base station cable service processing unit comprises one or more than one processing unit.

The base station device includes:

a switching unit: and the unit is used for exchanging data packets or frames between each base station wireless processing unit and each base station wired service processing unit, and is an IP switching unit in the mode based on the three-layer routing, and is a two-layer switching unit in the mode based on the two-layer bridging.

The AF device includes:

AF wired business processing unit: the system comprises a base station device, a wired service processing unit and a wired service processing unit, wherein the wired service processing unit is used for interconnecting with the base station device through one or more than one pair of wired cables at a reference point T, processing data packets or frames transmitted by the wired service processing unit butted with the ONU and transmitting the processed data packets or frames to the base station device, and transmitting the processed data packets or frames to the wired service processing unit butted with the ONU:

and the cable service processing unit is in butt joint with the ONU: and the ONU is used for performing ONU access conversion processing on the data packets or frames transmitted by the AF wired service processing unit, transmitting the data packets or frames to the ONU of the OAN broadband network through the wired cable, processing the data packets or frames transmitted by the ONU of the OAN broadband network through the wired cable and transmitting the processed data packets or frames to the AF wired service processing unit.

The AF device includes:

AF remote power supply unit: the system is used for converting commercial power input or direct current input into high-voltage direct current, outputting the high-voltage direct current to base station equipment through a wired cable comprising a twisted pair, and remotely supplying power to the base station equipment; or converting the high-voltage direct current from the remote power supply unit into low-voltage direct current to locally supply power to a power supply unit of the AF device.

The base station device includes:

base station remote power supply unit: the system is used for converting high-voltage direct current transmitted by a remote power supply unit or an AF remote power supply unit of AF equipment into low-voltage direct current to supply power to the base station equipment locally, or continuously transmitting the received high-voltage direct current to supply power to the base station equipment at the next-stage far end remotely through a wired cable.

base station equipment: the OAN broadband network is used for being interconnected with the OAN broadband network at a reference point a through one or more than one pair of wired cables, integrates an AF function, completes the access of a wireless user, performs ONU access conversion processing on data packets or frames of the accessed wireless user, outputs the data packets or frames to ONU equipment of the OAN broadband network, processes the data packets or frames transmitted by the ONU equipment and transmits the processed data packets or frames to the wireless user;

the ONU equipment: the optical distribution network ODN is used for interconnecting the base station equipment at the reference point a through one or more than one pair of wired cables, processing data packets or frames transmitted by the base station equipment, transmitting the processed data packets or frames to an Optical Distribution Network (ODN) of an OAN broadband network through wired cables, processing the data packets or frames transmitted by the ODN through the wired cables, and transmitting the processed data packets or frames to the base station equipment.

The system comprises:

a remote power supply unit: the device is used for converting mains supply input or direct current input into high-voltage direct current, outputting the high-voltage direct current to base station equipment or simultaneously outputting the high-voltage direct current to the base station equipment and ONU equipment through a wired cable comprising a twisted pair, and remotely supplying power to the base station equipment or simultaneously the base station equipment and the ONU equipment.

The base station device includes:

base station wireless processing unit: the wireless subscriber access system comprises a wired service processing unit, a wireless subscriber access control unit and a wireless subscriber, wherein the wired service processing unit is used for completing the access of the wireless subscriber, transmitting a data packet or a frame of the accessed wireless subscriber to the wired service processing unit in butt joint with the ONU, and transmitting the data packet or the frame transmitted by the wired service processing unit in butt joint with the ONU to the wireless subscriber;

and the cable service processing unit is in butt joint with the ONU: the optical network unit is used for interconnecting with an OAN broadband network at a reference point a through one or more than one pair of wired cables, carrying out ONU access conversion processing on data packets or frames transmitted by a base station wireless processing unit and then transmitting the data packets or frames to ONU equipment of the OAN broadband network, and processing the data packets or frames transmitted by the ONU equipment and then transmitting the data packets or frames to the base station wireless processing unit.

the cable service processing unit interfaced with the ONU comprises one or more than one processing unit.

The base station device includes:

a base station switching unit: and the unit is used for exchanging data packets or frames between each base station wireless processing unit and each wired service processing unit which is in butt joint with the ONU, wherein in the mode based on the three-layer routing, the unit is an IP (Internet protocol) switching unit, and in the mode based on the two-layer bridging, the unit is a two-layer switching unit.

The ONU equipment comprises:

ONU cable service processing unit: the system comprises a base station device, a pair of or more than one pair of wired cables, a pair of optical service processing units and a pair of base station devices, wherein the wired cables are used for being interconnected with the base station device at a reference point a, processing data packets or frames transmitted by the optical service processing units and then transmitting the processed data packets or frames to the base station device, and processing the data packets or frames transmitted by the base station device and then transmitting the;

the optical service processing unit: and the ODN is used for processing the data packets or frames transmitted by the ONU wired service processing unit, transmitting the data packets or frames to the ODN of the OAN broadband network through the wired cable, and transmitting the data packets or frames transmitted by the OAN broadband network to the ONU wired service processing unit after processing the data packets or frames.

The ONU cable service processing unit comprises one or more than one processing unit;

the optical service processing unit comprises one or more than one processing unit.

The ONU equipment comprises:

an ONU device exchange unit: for exchanging data packets or frames between each optical service processing unit and each and ONU wired service processing unit.

The ONU equipment comprises:

ONU remote power supply unit: the system is used for converting commercial power input or direct current input into high-voltage direct current, outputting the high-voltage direct current to base station equipment through a wired cable comprising a twisted pair, and remotely supplying power to the base station equipment; or the high-voltage direct current from the remote power supply unit is converted into low-voltage direct current to locally supply power to a power supply unit of the ONU equipment.

The base station device includes:

base station remote power supply unit: the remote power supply unit is used for converting high-voltage direct current transmitted by the remote power supply unit or an ONU remote power supply unit of the ONU equipment into low-voltage direct current to supply power to the base station equipment locally, or continuously transmitting the received high-voltage direct current to supply power to the base station equipment at the next-stage remote end remotely through a wired cable.

base station equipment: the optical network unit is used for interconnecting with an OAN broadband network at a reference point ODN through one or more than one pair of wired cables, integrates AF and ONU functions, completes the access of a wireless user, outputs a data packet or frame of the accessed wireless user to ODN equipment of the OAN broadband network after conversion processing suitable for optical transmission, and transmits the data packet or frame transmitted by the ODN equipment to the wireless user after processing;

an ODN device: the optical line terminal is used for interconnecting the base station equipment and the reference point ODN through one or more than one pair of wired cables, processing data packets or frames transmitted by the base station equipment and transmitting the processed data packets or frames to the OLT of the OAN broadband network, and processing the data packets or frames transmitted by the OLT and transmitting the processed data packets or frames to the base station equipment.

The system comprises:

a remote power supply unit: the power supply device is used for converting commercial power input or direct current input into high-voltage direct current, outputting the high-voltage direct current to base station equipment through a wired cable comprising a twisted pair, and remotely supplying power to the base station equipment.

The base station device includes:

base station wireless processing unit: the system comprises a wireless user access unit, an optical service processing unit and a wireless user access unit, wherein the wireless user access unit is used for completing the access of a wireless user, transmitting a data packet or a frame of the accessed wireless user to the optical service processing unit, and transmitting the data packet or the frame transmitted by the optical service processing unit to the wireless user;

the optical service processing unit: the ODN equipment is used for interconnecting with an OAN broadband network at a reference point ODN through one or more than one pair of wired cables, carrying out conversion processing suitable for optical transmission on data packets or frames transmitted by the base station wireless processing unit and then transmitting the data packets or frames to the OAN broadband network, and transmitting the data packets or frames transmitted by the ODN equipment to the base station wireless processing unit after processing.

The base station device includes:

a base station switching unit: and the unit is used for exchanging data packets or frames between each base station wireless processing unit and each optical service processing unit, and is an IP switching unit in the mode based on the three-layer routing, and is a two-layer switching unit in the mode based on the two-layer bridging.

The base station device includes:

base station remote power supply unit: the power supply unit is used for converting the high-voltage direct current transmitted by the remote power supply unit into low-voltage direct current to supply power to the base station equipment locally, or transmitting the received high-voltage direct current continuously and supplying power to the base station equipment at the next-stage far end remotely through a wired cable.

According to the technical scheme provided by the invention, compared with the prior art, the invention has the following advantages:

1. the invention provides interconnection schemes of WiMAX802.16-2004 and OAN broadband networks and WiMAX802.16e and OAN broadband networks, and solves the interconnection relationship between the two networks;

2. the interconnection scheme provided by the invention uses the WiMAX wireless network as the wireless extension of OAN wired access, is suitable for fixed wireless, nomadic, portable and mobile access applications, and provides an evolution way for OAN broadband network operators to develop WiMAX networks.

3. The tight coupling mode provided by the invention is based on WiMAX over Fiber and WiMAX over Fiber, complements the technical characteristics of WiMAX and PON, enlarges the coverage of the network and provides high bandwidth for users. The WiMAX over Fiber supplements the coverage of the OAN mainly by using the wireless coverage of WiMAX, so that the construction of the WiMAX access network can use the line resources distributed in the original OAN network as much as possible, and the additional interconnection wiring of the base station return stroke is directly avoided, thereby reducing the construction cost of the WiMAX access network. And the Fiber over WiMAX supports the evolution from the WiMAX wireless network to the optical Fiber access network, so that the construction of the optical Fiber access network can utilize the optical Fiber resources laid by the original WiMAX network as much as possible, and the problem of laying the optical fibers for the construction of the optical Fiber access network is solved.

4. The loose coupling mode provided by the invention is used for interconnecting and intercommunicating two networks for an operator with two independent WiMAX and OAN networks, sharing the service and application resources of the two networks, and performing unified authentication, charging and customer service at a core layer; meanwhile, the difference of two network users is kept, for example, the user in the WiMAX network has the ability of moving, and the OAN network user has the ability of accessing with high bandwidth.

Drawings

Fig. 1 is a schematic diagram of a major network architecture of an FTTx network;

FIG. 2 is a schematic diagram of a network reference architecture of an OAN in an FTTx network;

FIG. 3 is a diagram illustrating a reference architecture of a WIMAX network, for example, 802.16 e;

FIG. 4 is a schematic diagram of interconnection between WiMAX802.16-2004 and OAN broadband networks at reference point T according to the present invention;

fig. 5 is a schematic diagram of interconnection between wimax802.16e and an OAN broadband network at a reference point T according to the present invention;

FIG. 6 is a schematic diagram of interconnection between WiMAX802.16-2004 and OAN broadband networks at reference point a;

fig. 7 is a schematic diagram of interconnection between wimax802.16e and an OAN broadband network at reference point a according to the present invention;

FIG. 8 is a schematic diagram of the interconnection of WiMAX802.16-2004 and OAN broadband networks at reference point ODN according to the present invention;

fig. 9 is a schematic diagram of interconnection between wimax802.16e and an OAN broadband network at a reference point ODN according to the present invention;

FIG. 10 is a schematic diagram of the interconnection of WiMAX802.16-2004 and OAN broadband networks according to the present invention at reference point v;

fig. 11 is a schematic diagram of interconnection between wimax802.16e and an OAN broadband network at a reference point v according to the present invention;

fig. 12 is a schematic diagram of interconnection of wimax802.16e of the present invention with an OAN broadband network via an IWU at reference point v;

fig. 13 is a block diagram of a system in which a broadband wireless access network and an optical fiber access broadband network are interconnected at a reference point T according to the present invention;

fig. 14 is a block diagram of another system for interconnecting a broadband wireless access network and a fiber access broadband network according to the present invention at a reference point T;

fig. 15 is a block diagram of a system in which a broadband wireless access network and an optical fiber access broadband network are interconnected at a reference point a according to the present invention;

fig. 16 is a block diagram of a system in which another broadband wireless access network and an optical fiber access broadband network are interconnected at a reference point a according to the present invention;

fig. 17 is a structural diagram of a system in which a broadband wireless access network and an optical fiber access broadband network are interconnected at a reference point ODN according to the present invention.

Detailed Description

The invention provides a method and a system for interconnecting a broadband wireless access network and an optical fiber access broadband network, and the core of the invention is as follows: and connecting the WiMAX network with the access network of the OAN broadband network at a reference point T or a reference point a or a reference point ODN or a reference point V.

The method for interconnecting the WiMAX network and the OAN broadband network comprises 4 schemes of respectively interconnecting WiMAX802.16-2004 and the OAN broadband network and WiMAX802.16e and the OAN broadband network at a reference point T, a reference point a, a reference point ODN or a reference point V. The 4 schemes are described below.

Scheme 1, including wimax802.16-2004 and wimax802.16e, are interconnected with the OAN broadband network at reference point T, respectively.

The schematic diagram of interconnection between wimax802.16-2004 and the OAN broadband network at the reference point T is shown in fig. 4, and is described in detail as follows:

the wimax802.16-2004 and the OAN broadband network are interconnected at reference point T, which is a tightly coupled scheme. WiMAX802.16-2004 directly utilizes wired resources already distributed by OAN, such as: in the FTTB/FTTC network (see fig. 1) existing in an operator, a WiMAX base station is installed in a building, and accesses to an OAN network through an ONU by directly using copper wire resources of the building, thereby reducing extra wiring for the base station to access to a broadband network. The interconnection scheme includes two modes according to several modes of WiMAX access. The protocol stacks for the two modes of TE-SS-BS-AF-ONU-OLT-SNF are given in fig. 4. The path is an end-to-end path for WiMAX802.16-2004 to access the OAN network at an OAN reference point T. The scheme is mainly used for fixed access, but a WiMAX user needs to have certain nomadic capability. Two modes of the scheme are described below:

the first mode is as follows: under a path of TE-SS-BS-AF-ONU-OLT-SNF, adopting two-layer bridging on CPE and SNF, adopting 802.16-2004 two-layer wireless access technology between SS (subscriber station) and BS (base station), wherein the 802.16-2004 two-layer wireless access technology supports ETH CS (Ethernet convergence sub-layer) on an air interface and is used as extension of copper wire access in FTTB;

and a second mode: under a path of TE-SS-BS-AF-ONU-OLT-SNF, TE (terminal equipment), SS, BS and SFN (service point function point) are all three-layer network elements, an 802.16-2004 three-layer wireless access technology is adopted between the SS and the BS, and the 802.16-2004 three-layer wireless access technology supports IP CS (IP convergence sublayer) on an air interface and is used as extension of copper wire access in FTTB/FTTC.

The above two modes follow the security architecture of PKM (protocol key management) of the 802.16 security sublayer between SS-BSs in terms of security.

The wimax x802.16e is interconnected with the OAN broadband network at the reference point T through the ASN, and a schematic diagram of the interconnection scheme is shown in fig. 5 and specifically described as follows:

the 802.16e network is connected to the AF through the ASN, then is connected to the ODN through the ONU, and finally is connected to the Service NodeFunction, and the scheme belongs to a tight coupling scheme. The WiMAX network utilizes ONU to access ODN and ODN to access SNF. The scheme includes three access modes, and a protocol stack under a TE-MS-ASN-AF-ONU-OLT-SFN path in each mode is shown in fig. 5. The path is an end-to-end path of WiMAX802.16e accessing the OAN network at the OAN reference point T. The scheme mainly supports the fixed access and nomadic characteristics of WiMAX and can also support the portable and mobile access to a certain degree. Because the unified Service Node Function is accessed, unified authentication, charging and client Service can be supported. Three modes of the scheme are described below:

mode 1: under the TE-MS-ASN-AF-ONU-OLT-SFN path, TE can be connected under the MS in a hanging mode, an IP three-layer routing technology is adopted between the ASN outlet node and the MS, and the IP three-layer routing technology supports IP CS on an air interface.

Mode 2: under the TE-MS-ASN-AF-ONU-OLT-SFN path, TE can be connected below the MS, and a two-layer network bridging technology is adopted between the ASN exit node and the MS, for example, Ethernet bridging is adopted, and the two-layer network bridging technology supports ETH CS on an air interface.

Mode 3: under the TE-MS-ASN-AF-ONU-OLT-SFN path, the MS can be a simple Mobile terminal (mobile terminal), an IP three-layer routing technology is adopted between an ASN inlet node and the MS, and the IP three-layer routing technology supports IP CS on an air interface.

Scheme 2, including interconnection of WiMAX802.16-2004 and OAN broadband networks and interconnection of WiMAX802.16e and OAN broadband networks, respectively, at reference point a.

The wimax802.16-2004 is interconnected with the OAN broadband network at reference point a, and the schematic diagram of the interconnection scheme is shown in fig. 6 and specifically described as follows:

the wimax802.16-2004 and the OAN broadband network are interconnected at reference point a, which is a tightly coupled scheme. WiMAX802.16-2004 directly utilizes wired resources already distributed by OAN, such as: operator existing FTTB/FTTC network (refer to fig. 1). In the scheme, the BS integrates the AF function, the WiMAX base station is arranged in a building, is directly connected to the ONU and is accessed to the ODN network through the ONU. The interconnection scheme includes two modes according to several modes of WiMAX access. The protocol stacks for the two modes of TE-SS-BS-ONU-OLT-SNF are given in fig. 6. The path is an end-to-end path for WiMAX802.16-2004 to access the OAN network at OAN reference point a. The scheme is mainly used for fixed access, but a WiMAX user needs to have certain nomadic capability. Two modes of the scheme are described below:

the first mode is as follows: under a path of TE-SS-BS-ONU-OLT-SNF, adopting two-layer bridging on CPE and SNF, adopting 802.16-2004 two-layer wireless access technology between SS (subscriber station) and BS (base station), wherein the 802.16-2004 two-layer wireless access technology supports ETH CS (Ethernet convergence sub layer) on an air interface and is used as an extension of wireless access of an OAN (Ethernet over Ethernet);

and a second mode: under a path of TE-SS-BS-AF-ONU-OLT-SNF, TE (terminal equipment), SS, BS and SFN (service point function point) are all three-layer network elements, an 802.16-2004 three-layer wireless access technology is adopted between the SS and the BS, and the 802.16-2004 three-layer wireless access technology supports IP CS (IP convergence sublayer) on an air interface and is used as an extension of wireless access of an OAN.

The wimax802.16e is interconnected with the OAN broadband network at a reference point a through the ASN, and a schematic diagram of the interconnection scheme is shown in fig. 7 and specifically described as follows:

the method comprises the steps of connecting an 802.16e network to AF through ASN, connecting the network to ODN through ONU, and finally connecting to Service NodeFunction, wherein the scheme belongs to a tight coupling scheme, and AF is built in the ASN. The WiMAX network utilizes ONU to access ODN and ODN to access SNF. The scheme includes three access modes, and a protocol stack under a TE-MS-ASN-ONU-OLT-SFN path in each mode is shown in fig. 7. The path is an end-to-end path for WiMAX802.16e to access the OAN network at OAN reference point a. The scheme mainly supports the fixed access and nomadic characteristics of WiMAX and can also support the portable and mobile access to a certain degree. Because the unified Service Node Function is accessed, unified authentication, charging and client Service can be supported. Three modes of the scheme are described below:

mode 1: under the TE-MS-ASN-ONU-OLT-SFN path, TE can be connected under the MS, an IP three-layer routing technology is adopted between the ASN outlet node and the MS, and the IP three-layer routing technology supports IP CS on an air interface.

Mode 2: under the path of TE-MS-ASN-ONU-OLT-SFN, TE can be connected under the MS, and a two-layer network bridging technology is adopted between the ASN exit node and the MS, for example, Ethernet bridging is adopted, and the two-layer network bridging technology supports ETH CS on an air interface.

Mode 3: under the TE-MS-ASN-ONU-OLT-SFN path, the MS can be a simple Mobile Terminal (Mobile Terminal), and an IP three-layer routing technology is adopted between the ASN entry node and the MS, and supports IP CS on an air interface.

As shown in fig. 7, the optical access network terminal CPE accesses the ASN through the AF to share the CSN. Since both WiMAX802.16e and the optical access network access to the CSN, and utilize the unified authentication, charging and service application functions of the CSN, the access mode supports unified authentication, charging and customer service. The access mode includes two access modes, and fig. 7 shows protocol stacks in the CPE-AF-ASN-CSN path in the various modes. Two access modes of this access scheme are described below:

mode 4: CPE (customer premise equipment) of the optical access network directly accesses the ASN network through AF (auto-ranging), the CSN of the WiMAX network is shared, and the ASN is accessed in three layers;

mode 5: the CPE of the optical access network directly accesses the ASN network through the AF, and shares the CSN of the WiMAX network, and the ASN is accessed in two layers.

Scheme 3, including interconnection of WiMAX802.16-2004 with the OAN broadband network and WiMAX802.16e with the OAN broadband network at reference point ODN, respectively.

The WiMAX802.16-2004 and the OAN broadband network are interconnected at a reference point ODN, and a schematic diagram of the interconnection scheme is shown in FIG. 8 and specifically described as follows:

the wimax802.16-2004 and the OAN broadband network are interconnected at reference point ODN, which belongs to the tight coupling scheme. WiMAX802.16-2004 directly utilizes wired resources already distributed by OAN, such as: the operator has a network of FTTH (refer to fig. 1). In the scheme, the BS integrates the functions of AF and ONU, and the WiMAX base station is arranged in a building and is directly connected to the ODN network. The interconnection scheme includes two modes according to several modes of WiMAX access. The protocol stacks for the two modes of TE-SS-BS-ONU-OLT-SNF are given in fig. 8. The path is an end-to-end path for WiMAX802.16-2004 to access the OAN network at the OAN reference point ODN. The scheme is mainly used for fixed access, but a WiMAX user needs to have certain nomadic capability. Two modes of the scheme are described below:

the first mode is as follows: under the path of TE-SS-BS-OLT-SNF, two-layer bridging is adopted on CPE and SNF, 802.16-2004 two-layer wireless access technology is adopted between SS (subscriber station) and BS (base station), and the 802.16-2004 two-layer wireless access technology supports ETH CS (Ethernet convergence sublayer) on an air interface and is used as the extension of wireless access of OAN network;

and a second mode: under a path of TE-SS-BS-OLT-SNF, TE (terminal equipment), SS, BS and SFN (service point function point) are all three-layer network elements, an 802.16-2004 three-layer wireless access technology is adopted between the SS and the BS, and the 802.16-2004 three-layer wireless access technology supports IP CS (IP convergence sublayer) on an air interface and is used as an extension of wireless access of an OAN.

In terms of security, the above two modes use the security architecture of PKM (protocol key management) of the 802.16 security sublayer between SS-BSs, and adopt the security system of PON between BS and OLT.

The wimax x802.16e is interconnected with the OAN broadband network at the reference point ODN through the ASN, and a schematic diagram of the interconnection scheme is shown in fig. 9 and specifically described as follows:

the 802.16e network is directly accessed to the ODN through the ASN, and then accessed to the SNF through the OLT, the scheme belongs to a tight coupling scheme, the WiMAX network is accessed to the OAN as a point under the OLT, and the SNF is accessed by using the ODN. The scheme includes three access modes, and the protocol stack under the TE-MS-ASN-OLT-SFN path in each mode is shown in fig. 9. The path is an end-to-end path of WiMAX802.16e accessing the OAN network at the OAN reference point ODN. The scheme mainly supports the fixed access and nomadic characteristics of WiMAX and can also support the portable and mobile access to a certain degree. Since a unified SNF is accessed, unified authentication, billing, and customer service can be supported. Three modes of the scheme are described below:

mode 1: under TE-MS-ASN-OLT-SFN path, TE can be connected under MS, IP three-layer routing technology is adopted between ASN exit node and MS, and the IP three-layer routing technology supports IP CS on air interface.

Mode 2: under TE-MS-ASN-OLT-SFN path, TE can be connected under MS, and two-layer network bridging technology is adopted between ASN exit node and MS, for example, Ethernet bridging is used, and the two-layer network bridging technology supports ETHCS on air interface.

Mode 3: under the TE-MS-ASN-OLT-SFN path, the MS can be a simple Mobile Terminal (Mobile Terminal), and an IP three-layer routing technology is adopted between the ASN entry node and the MS, and supports IPCS on an air interface.

As shown in fig. 9, this scheme may also be an access method for performing optical access extension to an operator of an existing wimax802.16e network, and also belongs to a tight coupling scheme. In the access mode, the optical access network is accessed to the ASN through the ONU and the optical fiber, and the CSN is shared. Since both WiMAX802.16e and the optical access network access to the CSN, and utilize the unified authentication, charging and service application functions of the CSN, the access mode supports unified authentication, charging and customer service. The access mode includes two access modes, and a protocol stack under a CPE-AF-ONU-ASN-CSN path in each mode is shown in fig. 9. Two access modes of this access scheme are described below:

mode 4: an optical access technology (such as EPON and GPON technology) is adopted between CPE (customer premise equipment) and OLT of an optical access network, the WiMAX network is accessed through the OLT, CSN is shared, and an entry node of ASN is accessed in three layers;

mode 5: an optical access technology (such as EPON and GPON technology) is adopted between the CPE and the OLT of the optical access network, the WiMAX network is accessed through the OLT, the CSN is shared, and an entry node of the ASN is accessed in two layers.

Scheme 4, including interconnection of WiMAX802.16-2004 with the OAN broadband network and WiMAX802.16e with the OAN broadband network, respectively, at reference point V.

The wimax802.16-2004 is interconnected with the OAN broadband network at reference point V, and the schematic diagram of the interconnection scheme is shown in fig. 10 and specifically described as follows:

the wimax802.16-2004 and the OAN broadband network are interconnected at reference point V, which is a loosely coupled scheme. In the scheme, the sharing of the service and application resources of the WiMAX802.16-2004 and OAN broadband networks is realized, and the unified authentication, charging and customer service are performed in a core layer. The interconnection scheme includes two modes according to several modes of WiMAX access. The protocol stacks for the two modes of TE-SS-BS-SNF are given in fig. 10. This path is the end-to-end path that WiMAX802.16-2004 accesses the OAN network at OAN reference point V. Two modes of the scheme are described below:

the first mode is as follows: under the path of TE-SS-BS-SNF, two-layer bridging is adopted on CPE and SNF, 802.16-2004 two-layer wireless access technology is adopted between SS (user station) and BS (base station), and the 802.16-2004 two-layer wireless access technology supports ETH CS (Ethernet convergence sublayer) on an air interface and is used as the extension of wireless access of OAN network;

and a second mode: under a path of TE-SS-BS-SNF, TE (terminal equipment), SS, BS and SFN (service point function point) are all three-layer network elements, an 802.16-2004 three-layer wireless access technology is adopted between the SS and the BS, and the 802.16-2004 three-layer wireless access technology supports IP CS (IP convergence sublayer) on an air interface and is used as an extension of wireless access of the OAN.

The wimax x802.16e is interconnected with the OAN broadband network at the reference point V through the ASN, and the schematic diagram of the interconnection scheme is shown in fig. 11 and 12, and is described in detail as follows:

in the interconnection scheme shown in fig. 11, a network of 802.16e is directly accessed to the SNF through the ASN, and the scheme belongs to a loose coupling scheme. The scheme includes three access modes, and a protocol stack under a TE-MS-ASN-SFN path in each mode is shown in fig. 11. The path is an end-to-end path for WiMAX802.16e to access the OAN network at OAN reference point V. The scheme mainly supports the fixed access and nomadic characteristics of WiMAX and can also support the portable and mobile access to a certain degree. Since a unified SNF is accessed, unified authentication, billing, and customer service can be supported. Three modes of the scheme are described below:

mode 1: under TE-MS-ASN-SFN path, TE can be connected under MS, IP three-layer routing technology is adopted between ASN exit node and MS, and the IP three-layer routing technology supports IP CS on air interface.

Mode 2: under the TE-MS-ASN-SFN path, TE can be connected below the MS, and a two-layer network bridging technology is adopted between the ASN exit node and the MS, for example, the two-layer network bridging technology is used for Ethernet bridging, and the two-layer network bridging technology supports ETH CS on an air interface.

Mode 3: under the TE-MS-ASN-SFN path, the MS can be a simple Mobile terminal (Mobile terminal), an IP three-layer routing technology is adopted between an ASN entry node and the MS, and the IP three-layer routing technology supports IPCS on an air interface.

As shown in fig. 11, this scheme may also be an access method for performing optical access extension on an operator of an existing wimax82.16e network, and also belongs to a loosely coupled scheme. In the access mode, the optical access network accesses the ASN through the OLT and shares the CSN. Since both WiMAX802.16e and the optical access network access to the CSN, and utilize the unified authentication, charging and service application functions of the CSN, the access mode supports unified authentication, charging and customer service. The access mode includes two access modes, and fig. 11 shows protocol stacks under CPE-AF-ONU-OLT-ASN-CSN paths in the various modes. Two access modes of this access scheme are described below:

In the interconnection scheme shown in fig. 12, the operator has two independent networks of an OAN network and a wimax802.16e network, a network element IWU (interconnection unit) is added between the 802.16e network and the OAN to perform interconnection between the two networks, and the CSN is interconnected with the IWU through an R5 interface and then interconnected with the OAN broadband network at a reference point V. The OAN network and wimax802.16e share the service provided by the SNF, which belongs to a loosely coupled scheme.

In the scheme, the IWU can provide DHCP RELAY (dynamic host configuration protocol relay) function and provide a DHCP Server for accessing SNF for the WiMAX network; the IWU may also provide AAA Proxy (authentication, authorization, accounting Proxy) functionality, accessing the AAA server of the SNF. The AAA protocol needs to be based on EAP over RADIUS (extended authentication protocol for remote user Dial-in authentication System) or EAP over DIAMETER (extended authentication protocol for DIAMETER authentication System). The scheme has three access modes, and the protocol stack under the TE-MS-ASN-CSN path under various modes is shown in FIG. 12. The scheme mainly supports the portable and mobile access of WiMAX, and can also be suitable for fixed access and nomadic characteristics. Since a unified SNF is accessed, unified authentication, billing, and customer service can be supported. The three access modes of the scheme are described below:

Mode 3: under the TE-MS-ASN-SFN path, the MS may be a simple Mobile Terminal, and an IP three-layer routing technology is adopted between the ASN ingress node and the MS, and supports IPCS over the air interface.

The following describes a system for interconnecting a broadband wireless access network and an optical fiber access broadband network according to the present invention, and the system includes three implementation schemes, which are described below.

Scheme 1, in this scheme, a schematic structural diagram of a system in which a broadband wireless access network and an optical fiber access broadband network are interconnected is shown in fig. 13 and fig. 14, and includes the following modules:

base station equipment: the device is used for interconnecting with an OAN broadband network at a reference point T through one or more than one pair of wired cables to complete the access of a wireless user, processing data packets or frames of the accessed wireless user, outputting the processed data packets or frames to AF equipment of the OAN broadband network, processing the data packets or frames transmitted by the AF equipment, and transmitting the processed data packets or frames to the wireless user. The base station equipment comprises a base station wireless processing unit, a base station wired service processing unit, a switching unit and a base station remote power supply unit.

An AF device: the optical network unit is used for interconnecting with base station equipment at a reference point T through one or more than one pair of wired cables, transmitting data packets or frames transmitted by the base station equipment to the ONU of the OAN broadband network through the wired cables after carrying out ONU access conversion processing, and transmitting the data packets or frames transmitted by the ONU through the wired cables to the base station equipment after processing. The AF device includes: and the cable service processing unit is in butt joint with the ONU, and the AF cable service processing unit and the AF remote power supply unit are in butt joint with the ONU.

A remote power supply unit: the system is used for converting a commercial power input (such as 110V/220V alternating current) or a direct current input (such as-48V/-60V direct current) into a high-voltage direct current output (such as 270V direct current), and remotely supplying power to a remote base station device or simultaneously supplying power to the remote base station device and an AF device through a wired cable (such as one or more twisted pair wires). The schematic structural diagram of the system of the present invention is shown in fig. 13 when the remote power supply unit remotely supplies power to only the BS, and the schematic structural diagram of the system of the present invention is shown in fig. 14 when the remote power supply unit remotely supplies power to both the BS and the AF device. The distance of remote power supply is related to the wire diameter of the wired cable, the number of wire pairs, the power consumption of the base station outdoor unit and the output voltage of the remote power supply unit, and the distance of the remote power supply of 2-5 kilometers can be usually achieved.

The base station wireless processing unit in the above base station apparatus: the wireless subscriber access system is used for completing the access of wireless subscribers, transmitting data packets or frames of the accessed wireless subscribers to a base station wired service processing unit, and transmitting the data packets or frames transmitted by the base station wired service processing unit to the wireless subscribers, wherein the unit comprises one or more than one processing unit, and each processing unit consists of an antenna, a radio frequency processing module, an intermediate frequency processing module, a baseband processing module, a wireless data link layer processing module and a wireless data link upper layer processing module.

The wired service processing unit of the base station in the base station equipment comprises: the system is used for interconnecting with an OAN broadband network at a reference point T through one or more than one pair of wired cables, processing data packets or frames transmitted by a base station wireless processing unit and transmitting the processed data packets or frames to AF equipment of the OAN broadband network, and processing the data packets or frames transmitted by the AF equipment and transmitting the processed data packets or frames to the base station wireless processing unit. The unit comprises one or more than one processing unit.

The switching unit in the base station apparatus described above: the switching unit is not needed when the base station wireless processing unit and the base station wired service processing unit are only one, and the unit is an IP switching unit in the mode based on the three-layer routing and a two-layer switching unit in the mode based on the two-layer bridging.

The base station remote power supply unit in the base station apparatus described above: the power supply unit is used for converting high-voltage direct current (for example, 270V direct current) transmitted by the remote power supply unit or the AF remote power supply unit of the AF device into low-voltage direct current to locally supply power to the power supply unit of the base station device, or continuously transmitting the received high-voltage direct current to remotely supply power to the base station device at the next stage and far end through a wired cable. The unit also supports the mutual communication with AF equipment or a remote power supply unit, and is used as an out-of-band management channel for the BS, so that the monitoring and alarming during normal and fault can be realized, the management and fault location of the equipment are facilitated, the remote maintenance is facilitated, and the like.

The AF wired service processing unit in the AF device: the system is used for interconnecting with base station equipment at a reference point T through one or more than one pair of wired cables, processing data packets or frames of a wired service processing unit butted with the ONU and transmitting the processed data packets or frames to the base station equipment, and processing the data packets or frames transmitted by the base station equipment and transmitting the processed data packets or frames to the wired service processing unit butted with the ONU.

The wired service processing unit in the AF device, which is interfaced with the ONU: and the data packet or frame processing unit is used for processing the data packet or frame transmitted by the AF wired service processing unit and transmitting the processed data packet or frame to the ONU of the OAN broadband network and transmitting the processed data packet or frame to the AF wired service processing unit.

The AF remote power supply unit in the AF apparatus described above: for converting a mains input (e.g., 110V/220V ac) or a dc input (e.g., -48V/-60V dc) to a high voltage dc output (e.g., 270V dc) for remote power supply to a remote base station device over a wired cable (e.g., one or more twisted pair wires). The distance of remote power supply is related to the wire diameter of the wired cable, the number of wire pairs, the power consumption of the base station outdoor unit and the output voltage of the remote power supply equipment, and the distance of remote power supply of 2-5 kilometers can be usually achieved.

Or,

and converting the high-voltage direct current (such as 270V direct current) from the remote power supply unit into low-voltage direct current to supply power to a power supply unit of the AF device locally.

Scheme 2, in this scheme, a schematic structural diagram of a system in which a broadband wireless access network and an optical fiber access broadband network are interconnected is shown in fig. 15 and fig. 16, and includes the following modules:

base station equipment: the base station equipment integrates the AF function, completes the access of wireless users, performs ONU access conversion processing on data packets or frames of the accessed wireless users, outputs the data packets or frames to the ONU equipment of the OAN broadband network, processes the data packets or frames transmitted by the ONU equipment and transmits the processed data packets or frames to the wireless users. The base station equipment comprises a base station wireless processing unit, a wired service processing unit, a base station exchange unit and a base station remote power supply unit, wherein the wired service processing unit is in butt joint with the ONU.

The ONU equipment: the ODN is used for interconnecting with base station equipment at a reference point a through one or more than one pair of wired cables, processing data packets or frames transmitted by the base station equipment, transmitting the data packets or frames to the ODN of the OAN broadband network through the wired cables, processing the data packets or frames transmitted by the ODN through the wired cables, and transmitting the data packets or frames to the base station equipment. The ONU device includes: the ONU comprises an ONU wired service processing unit, an optical service processing unit, an ONU exchange unit and an ONU remote power supply unit.

A remote power supply unit: the remote power supply device is used for converting a commercial power input (such as 110V/220V alternating current) or a direct current input (such as-48V/-60V direct current) into a high-voltage direct current output (such as 270V direct current), and remotely supplying power to a remote base station device or a remote BS device and an ONU device simultaneously through a wired cable (such as one or more twisted pair wires). When the remote power supply unit only supplies power to the BS remotely, the schematic structural diagram of the system of the present invention is shown in fig. 15, and when the remote power supply unit simultaneously supplies power to the BS and the ONU device remotely, the schematic structural diagram of the system of the present invention is shown in fig. 16. The distance of remote power supply is related to the wire diameter of the wired cable, the number of wire pairs, the power consumption of the base station outdoor unit and the output voltage of the remote power supply unit, and the distance of the remote power supply of 2-5 kilometers can be usually achieved.

The base station wireless processing unit in the above base station apparatus: the wireless subscriber access device is used for completing the access of wireless subscribers, transmitting data packets or frames of the accessed wireless subscribers to a wired service processing unit in butt joint with an ONU (optical network unit), and transmitting the data packets or frames transmitted by the wired service processing unit in butt joint with the ONU to the wireless subscribers, wherein the unit comprises one or more than one processing unit, and each processing unit consists of an antenna, a radio frequency processing module, an intermediate frequency processing module, a baseband processing module, a wireless data link layer processing module and a wireless data link upper layer processing module.

The wired service processing unit in the base station device, which is in butt joint with the ONU: the optical network unit is used for interconnecting with an OAN broadband network at a reference point a through one or more than one pair of wired cables, carrying out ONU access conversion processing on data packets or frames transmitted by a base station wireless processing unit and then transmitting the data packets or frames to the ONU of the OAN broadband network, and processing the data packets or frames transmitted by the ONU and then transmitting the data packets or frames to the base station wireless processing unit. The unit comprises one or more than one processing unit.

The base station switching unit in the base station apparatus described above: the wireless processing unit of the base station and the wired service processing unit which is connected with the ONU in an abutting mode are only one, and the wireless processing unit of the base station and the wired service processing unit which is connected with the ONU in an abutting mode can be free of the switching unit. In the mode based on the three-layer routing, the unit is an IP switching unit, and in the mode based on the two-layer bridging, the unit is a two-layer switching unit.

The base station remote power supply unit in the base station apparatus described above: the remote power supply unit is used for converting high-voltage direct current (for example, 270V direct current) transmitted by the remote power supply unit or the ONU remote power supply unit of the ONU device into low-voltage direct current to locally supply power to the power supply unit of the base station device, or continuously transmitting the received high-voltage direct current to remotely supply power to the next-stage remote base station device through a wired cable. The unit also supports mutual communication with ONU equipment or a remote power supply unit, is used as an out-of-band management channel for the BS, can realize monitoring and alarming during normal and fault, is convenient for equipment management and fault positioning, is beneficial to remote maintenance and the like.

The ONU wired service processing unit in the ONU device: the optical service processing unit is used for interconnecting with the base station equipment at a reference point a through one or more than one pair of wired cables, processing the data packet or frame transmitted by the optical service processing unit and transmitting the processed data packet or frame to the base station equipment, and transmitting the processed data packet or frame to the optical service processing unit.

The optical service processing unit in the ONU device: and the data packet or frame processing unit is used for processing the data packet or frame transmitted by the ONU wired service processing unit, transmitting the processed data packet or frame to the ODN of the OAN broadband network, and transmitting the processed data packet or frame to the ONU wired service processing unit.

The ONU switching unit in the ONU device described above: the optical network unit is used for exchanging data packets or frames between each ONU cable service processing unit and each optical service processing unit, and when the ONU cable service processing unit and the optical service processing unit are only one, the optical network unit does not have the exchange unit.

The ONU remote power supply unit in the ONU device: for converting a mains input (e.g., 110V/220V ac) or a dc input (e.g., -48V/-60V dc) to a high voltage dc output (e.g., 270V dc) for remote power supply to a remote base station device over a wired cable (e.g., one or more twisted pair wires). The distance of remote power supply is related to the wire diameter of the wired cable, the number of wire pairs, the power consumption of the base station outdoor unit and the output voltage of the remote power supply equipment, and the distance of remote power supply of 2-5 kilometers can be usually achieved.

Or,

the high voltage dc (e.g., 270 vdc) from the remote power supply unit is converted to low voltage dc for local power supply to the power supply unit of the ONU device.

Scheme 3, in this scheme, a schematic structural diagram of a system in which a broadband wireless access network and an optical fiber access broadband network are interconnected is shown in fig. 17, and includes the following modules:

base station equipment: the base station device integrates the functions of AF and ONU, completes the access of wireless users, converts the data packets or frames of the accessed wireless users into a mode suitable for optical transmission (such as EPON and GPON formats), outputs the data packets or frames to the ODN device of the OAN broadband network, processes the data packets or frames transmitted by the ODN device, and transmits the processed data packets or frames to the wireless users. The base station equipment comprises a base station wireless processing unit, an optical service processing unit, a switching unit and a base station remote power supply unit.

A remote power supply unit: for converting a mains input (e.g., 110V/220V ac) or a dc input (e.g., -48V/-60V dc) to a high voltage dc output (e.g., 270V dc) for remote power supply to a remote base station device over a wired cable (e.g., one or more twisted pair wires). The distance of remote power supply is related to the wire diameter of the wired cable, the number of wire pairs, the power consumption of the base station outdoor unit and the output voltage of the remote power supply unit, and the distance of the remote power supply of 2-5 kilometers can be usually achieved.

The base station wireless processing unit in the above base station apparatus: the unit comprises one or more than one processing unit, and each processing unit consists of an antenna, a radio frequency processing module, an intermediate frequency processing module, a baseband processing module, a wireless data link layer processing module and a wireless data link upper layer processing module.

The optical service processing unit in the base station device: the ODN equipment is used for interconnecting with an OAN broadband network at a reference point ODN through one or more than one pair of wired cables, processing data packets or frames transmitted by the base station wireless processing unit and transmitting the processed data packets or frames to the OAN broadband network, and processing the data packets or frames transmitted by the ODN equipment and transmitting the processed data packets or frames to the base station wireless processing unit. The unit comprises one or more than one processing unit.

The base station switching unit in the base station apparatus described above: the optical service processing unit is used for exchanging data packets or frames between each base station wireless processing unit and each optical service processing unit, and when the base station wireless processing unit and the optical service processing unit are only one, the exchange unit is not needed. In the mode based on the three-layer routing, the unit is an IP switching unit, and in the mode based on the two-layer bridging, the unit is a two-layer switching unit.

The base station remote power supply unit in the base station apparatus described above: the remote power supply unit is used for converting high-voltage direct current (for example, 270V direct current) transmitted by the remote power supply unit into low-voltage direct current to locally supply power to a power supply unit of the base station equipment, or transmitting the received high-voltage direct current continuously to remotely supply power to the base station equipment at the next stage and far from the base station equipment through a wired cable. The unit also supports mutual communication with ODN equipment or a remote power supply unit, and is used as an out-of-band management channel for the BS, so that monitoring and alarming during normal and fault can be realized, the management and fault positioning of the equipment are facilitated, the remote maintenance is facilitated, and the like.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for interconnecting a broadband wireless access network with a fiber access broadband network, comprising:

2. The method of claim 1, wherein the BWA network comprises a worldwide interoperability for microwave access WIMAX802.16-2004 network or WIMAX802.16e network.

3. The method of claim 2, wherein the method specifically comprises:

4. The method of claim 2, wherein the method specifically comprises:

5. The method of claim 2, wherein the method specifically comprises:

6. The method of claim 2, wherein the method specifically comprises:

7. Method for interconnecting a broadband wireless access network with a fiber access broadband network according to claim 3, 4, 5 or 6, characterized in that it comprises in particular:

8. The method of claim 7, wherein the 802.16-2004 two-layer wireless access supports an ethernet convergence sublayer, ETH CS, over the air interface.

9. Method for interconnecting a broadband wireless access network with a fiber access broadband network according to claim 3, 4, 5 or 6, characterized in that it comprises in particular:

10. The method of claim 9, wherein the 802.16-2004 tri-layer wireless access supports an IP convergence sublayer, IP CS, over the air interface.

11. The method of claim 2, wherein the method specifically comprises:

the WIMAX802.16e network is connected with the OAN broadband network through the access service network ASN and a reference point T in the OAN broadband network through any one mode of a mode based on two-layer bridging and a mode based on three-layer routing.

12. The method of claim 2, wherein the method specifically comprises:

the WIMAX802.16e network and the OAN broadband network are interconnected through any one mode of a mode based on two-layer bridging, a mode based on three-layer routing, a mode based on two-layer access and a mode based on three-layer access in the OAN broadband network through the ASN integrated with the AF function.

13. The method of claim 2, wherein the method specifically comprises:

the WIMAX802.16e network and the OAN broadband network are interconnected through any one mode of a mode based on two-layer bridging, a mode based on three-layer routing, a mode based on two-layer access and a mode based on three-layer access in the OAN broadband network through the ASN integrating AF and ONU functions.

14. The method of claim 2, wherein the method specifically comprises:

the WIMAX802.16e network is directly interconnected with the OAN broadband network through an ASN through a reference point V in the OAN broadband network in any one mode of a mode based on two-layer bridging, a mode based on three-layer routing, a mode based on two-layer access and a mode based on three-layer access.

15. The method of claim 2, wherein the method specifically comprises:

an interconnection unit IWU is arranged between the WIMAX802.16e network and the OAN broadband network, the WIMAX802.16e network is interconnected with the IWU through CSN, and then is interconnected with the OAN broadband network through a reference point V in the OAN broadband network based on any one mode of a mode based on two-layer bridging and a mode based on three-layer routing.

16. The method of claim 15, wherein the method specifically comprises:

17. A method of interconnecting a broadband wireless access network with a fibre access broadband network according to claim 11, 12, 13, 14, 15 or 16, the method comprising in particular:

18. The method of claim 17 wherein the two-tier network bridge supports an ETH CS over the air interface.

19. A method of interconnecting a broadband wireless access network with a fibre access broadband network according to claim 11, 12, 13, 14, 15 or 16, the method comprising in particular:

20. The method of claim 19, wherein the IP tri-layer routing supports IP CS over the air interface.

21. A method of interconnecting a broadband wireless access network with a fibre access broadband network according to claim 11, 12, 13, 14, 15 or 16, the method comprising in particular:

22. The method of claim 21, wherein the IP tri-layer routing supports IP CS over the air interface.

23. A method of interconnecting a broadband wireless access network with a fibre access broadband network according to claim 11, 12, 13, 14, 15 or 16, the method comprising in particular:

24. A method of interconnecting a broadband wireless access network with a fibre access broadband network according to claim 11, 12, 13, 14, 15 or 16, the method comprising in particular:

25. A system for a base station device and an optical fiber to access a broadband network, comprising:

26. The system of claim 25, wherein the base station device and the fiber access broadband network comprise:

27. The system of claim 25, wherein the base station device comprises:

28. The system of claim 27, wherein the base station device and the optical fiber access broadband network are configured to:

29. The system of claim 28, wherein the base station device comprises:

30. A system of base station equipment and a fiber optic access broadband network according to claim 25, 26, 27, 28 or 29, wherein said AF equipment comprises:

AF wired business processing unit: the system comprises a base station device, a wired service processing unit, a base station device and a wired service processing unit, wherein the wired service processing unit is used for processing a data packet or a frame transmitted by the wired service processing unit butted with the ONU and transmitting the processed data packet or frame to the base station device through one or more than one pair of wired cables and the base station device which are interconnected at a reference point T;

31. The system of claim 30, wherein the AF device comprises:

32. The system of claim 31, wherein the base station device comprises:

33. A system for a base station device and an optical fiber to access a broadband network, comprising:

34. The system of claim 33, wherein the base station device and the fiber access broadband network comprise:

35. The system of claim 33, wherein the base station device comprises:

36. The system of claim 35, wherein the base station device and the optical fiber access broadband network are configured to:

37. The system of claim 36, wherein the base station device comprises:

38. A system of base station devices and optical fiber access broadband networks according to claim 33, 34, 35, 36 or 37, characterized in that said ONU devices comprise:

39. The system of claim 38, wherein the base station device and the optical fiber access broadband network are configured to:

40. The system of claim 39, wherein the ONU device comprises:

41. The system of claim 38, wherein the ONU device comprises:

42. The system of claim 41, wherein the base station device comprises:

43. A system for a base station device and an optical fiber to access a broadband network, comprising:

44. The system of claim 43, wherein the system comprises:

45. The system of claim 43, wherein the base station device comprises:

46. The system of claim 45, wherein the base station device and the fiber access broadband network are configured to:

47. The system of claim 46, wherein the base station device comprises:

48. The system of claim 46, wherein the base station device comprises: