CN101370193B

CN101370193B - Transmission method for modem embedded in base station, base station and communication system

Info

Publication number: CN101370193B
Application number: CN2008102002010A
Authority: CN
Inventors: 罗静
Original assignee: Shanghai Huawei Technologies Co Ltd
Current assignee: Shanghai Huawei Technologies Co Ltd
Priority date: 2008-09-18
Filing date: 2008-09-18
Publication date: 2012-01-25
Anticipated expiration: 2028-09-18
Also published as: CN101370193A; CN102595650B; CN102595650A

Abstract

One embodiment of the invention provides a data modulating method for a built-in Modem of a base station, a data demodulating method, a base station and a communication system, wherein, the data modulating method comprises that the built-in Modem of the base station configures an asynchronous transmission mode ATM layer and a digital subscriber line DSL layer according to the received configuration management information; the data are carried out the treatment of the ATM layer and the DSL layer according to the configured result. The remote management problem of the Modem is solved through building the Modem in the base station and configuring and managing the Modem by a base station management platform in the embodiment of the invention; the Modem can synchronize with the clock information of the base station without external clock lines; the Modem built in the base station can be charged easily in the base station, thereby the current supply demand of the station is simplified; a Modem module is taken as a functional module of a base station product.

Description

Transmission method of built-in modem of base station, base station and communication system

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a transmission method, a base station, and a communication system for a Modem built in a base station.

Background

With the rapid development of wireless broadband services, wireless transmission bearer networks based on Internet Protocol (IP) (internet protocol) transmission modes have become more and more popular, and Base stations can be accessed into the IP bearer networks through various broadband access technologies, wherein the last kilometer fixed broadband access technology of a digital Subscriber line (dsl) (digital Subscriber line) is very suitable for the IP access of Base Transceiver Station (BTS) equipment in a room due to low cost and easy availability. The base station realizes the connection with the BSC through an ethernet interface provided by the DSL, and in the current implementation scheme, DSL terminal equipment, such as a DSL Modem, is deployed at the BTS side, and the BTS serves as a host to realize DSL access.

At present, in the prior art, a scheme that a base Station accesses an IP bearer network through an external DSL Modem is adopted, referring to fig. 1, the base Station is used as a host device, a DSL Modem is placed at a base Station side, the base Station provides a standard ethernet interface to connect with an ethernet interface of the DSL Modem, and the DSL Modem provides a transparent ethernet transmission function, so that the base Station can access the IP bearer network, as shown in the following figure, end-to-end IP communication can be performed between the base Station and a base Station controller bsc (base Station controller).

The solution of externally connecting the DSL Modem to the base station side has the biggest defect of poor reliability, the externally connected Modem is generally a terminal product facing personal family users, and the household Modem cannot meet the requirement of industrial grade reliability under the limit of price sensitivity.

Meanwhile, the prior art also has the problems of clock, power taking and DSL Modem configuration management. The base station is connected with the DSL Modem through a fast Ethernet FE interface, and needs to acquire the clock synchronization information of the base station, and the current clock synchronization solution based on an IP packet is not commercially available and can only be acquired by externally connecting a Global Positioning System (GPS) or pulling a special clock line, so that the networking cost is increased; personal household external DSLModem is generally a household electronic product electricity taking mode, and when the personal household external DSLModem is applied to a station of a base station, the personal household external DSLModem has problems in the aspects of reliability and power resource acquisition; the personal home external DSL Modem configuration management generally provides only a local configuration management interface, and once monitoring fault management related to the DSL Modem has to be performed on site in person in the DSLModem, it is very inconvenient to deploy at the same site as the base station, and the configuration management cost is high.

Disclosure of Invention

The embodiment of the invention provides a transmission method of a Modem built-in base station, the base station and a communication system, and solves the problems of reliability, power taking, clock and configuration management existing in the Modem external part and the base station in the prior art.

The embodiment of the invention provides a data processing method of a built-in modem of a base station, which comprises the following steps:

the base station is internally provided with a Modem which configures an ATM layer and a DSL layer of a digital subscriber line according to the received configuration management information;

and processing the data by an ATM layer and a DSL layer according to the configuration result.

The embodiment of the invention also provides a data processing method of the built-in modem of the base station, which comprises the following steps:

configuring a DSL layer of a Modem built in a base station according to configuration management information received from the DSL layer of a Modem digital subscriber line of the Modem built in the base station;

and the base station built-in Modem processes the data by a DSL layer according to the configuration result.

An embodiment of the present invention further provides a base station, including:

a configuration unit for configuring the ATM layer and the DSL layer according to the received configuration management information;

and the data processing unit is used for processing the data in an ATM layer and a DSL layer according to the configuration result.

the data configuration unit is used for configuring the DSL layer of the Modem in the base station according to the configuration management information received from the DSL layer of the Modem digital subscriber line of the Modem in the base station;

and the second data processing unit is used for processing the data by the DSL layer according to the configuration result.

a DSL layer modulation unit, which is used for carrying out modulation processing on the DSL layer on the ATM CELL generated in the ATM layer encapsulation unit according to the preset configuration management information;

the ATM layer encapsulation unit is used for encapsulating the MAC frame on the ATM layer according to the preset configuration management information;

a DSL layer demodulation unit for demodulating the received analog signal on the DSL layer according to the preset configuration management information to form an ATM CELL;

and the ATM layer decapsulation unit is used for decapsulating the ATM CELL formed after the DSL layer demodulation unit processes the ATM CELL on the ATM layer according to the preset configuration management information to form the MAC frame.

An embodiment of the present invention further provides a communication system, including: a base station and a base station controller, wherein,

the base station is used for packaging data to be sent on an ATM layer according to preset configuration management information to form ATM cells, carrying out modulation processing on the DSL layer on the ATM cells to form analog signals and sending the analog signals to the base station controller,

or according to the preset configuration management information, carrying out demodulation processing on a DSL layer on the received analog signal sent by the base station controller to form an ATM cell, and carrying out de-encapsulation on the ATM layer on the ATM cell to form an MAC frame;

the base station controller is used for receiving the analog signal sent by the base station or sending the analog signal to the base station.

The embodiment of the invention solves the remote management problem of the Modem by embedding the Modem into the base station and participating in the configuration management of the Modem by the base station management platform; the clock information of the base station can be synchronized without an external clock line; the base station is internally provided with the SOC-based Modem, so that electricity can be easily obtained from the inside of the base station, and the power supply requirement of a station is simplified; the Modem module is used as a functional module of the base station product.

Drawings

Fig. 1 is a schematic diagram of a prior art that a base station accesses an IP bearer network through an external DSL Modem;

fig. 2 is a flowchart illustrating a method for modulating data by a Modem built in a base station according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating another method for modulating data by a Modem built in a base station according to an embodiment of the present invention;

fig. 4 is a flowchart of a method for modulating data by a Modem built in a base station according to a first embodiment of the present invention;

fig. 5 is a logic architecture diagram of a processing flow of a base station for receiving a configuration management flow sent by a base station management station according to an embodiment of the present invention;

fig. 6 is another logic architecture diagram of a process flow of a base station receiving a configuration management flow sent by a base station management station according to an embodiment of the present invention;

fig. 7 is a logic framework of a base station transmission system with a built-in Modem according to a first embodiment of the present invention;

fig. 8 is a flowchart of a method for demodulating data by using a Modem built in a base station according to a second embodiment of the present invention;

fig. 9 is a flowchart of a method for modulating data by a Modem built in a base station according to a third embodiment of the present invention;

fig. 10 is a schematic diagram of a transmission module, an embedded Modem module and interfaces thereof of a base station according to a third embodiment of the present invention;

fig. 11 is an architecture diagram of a transmission module and an embedded Modem module of a base station according to a third embodiment of the present invention;

fig. 12 is a flowchart of a method for demodulating data by using a Modem built in a base station according to a fourth embodiment of the present invention;

fig. 13 is a logic unit diagram of a base station according to a seventh embodiment of the present invention;

fig. 14 is a logic unit diagram of a base station according to an eighth embodiment of the present invention;

fig. 15 is a logic unit diagram of a base station according to a ninth embodiment of the present invention;

fig. 16 is a logic unit diagram of a base station according to a tenth embodiment of the present invention;

fig. 17 is a block diagram of a communication system according to an eleventh embodiment of the present invention.

Detailed Description

The embodiment of the invention adopts a built-in digital subscriber line Modem (DSL Modem) to the base station, and takes the DSL Modem as a functional module of the base station, thereby reducing the reliability problem, the power taking problem, the clock problem and the Modem configuration management problem of the external DSL Modem.

First, a method for processing data of a modem built in a base station according to an embodiment of the present invention is briefly described, and as shown in fig. 2, the method includes:

step a 1: the base station is internally provided with a Modem which configures an ATM layer and a DSL layer of a digital subscriber line according to the received configuration management information;

step a 2: and processing the data by an ATM layer and a DSL layer according to the configuration result.

An embodiment of the present invention further provides a method for processing data of a modem built in a base station, which is shown in fig. 3 and includes:

step b 1: configuring a DSL layer of a Modem built in a base station according to configuration management information received from the DSL layer of a Modem digital subscriber line of the Modem built in the base station;

step b 2: and the base station built-in Modem processes the data by a DSL layer according to the configuration result.

The two methods are realized by a System On Chip (SOC) (System On chip) and an embedded chip respectively in the mode of the Modem function module in the base station physically.

Through the above general description of the data processing method of the Modem built in the base station according to the embodiment of the present invention, since the external Modem is built in the base station, and other functional modules in the base station perform modulation and demodulation processing On data together with the Modem module of the soc (system On chip) or the embedded chip physically, the Modem module in the base station has high reliability, is easy to obtain power, and facilitates configuration management of the Modem, and the clock On the Modem module can be synchronized with the clock of the base station.

The following detailed description of embodiments of the invention refers to specific embodiments.

In a first embodiment, a method for modulating data by a Modem built in a base station, where the method is a technical solution for building an SOC with a Modem function in a base station, referring to fig. 4, the method includes:

step F1, the SOC-based Modem built in the base station completes the management configuration of itself, and the configuration management may include: the base station is internally provided with a Modem for managing the configuration of the modulation data and the configuration of the demodulation data.

In the first embodiment of the present invention, when the SOC-based Modem is built in the base station, a central Processing unit cpu (central Processing unit) on the SOC inside the base station communicates with the base station management station, so as to implement configuration management of the SOC-based Modem inside the base station by the base station management station, as shown in fig. 5, specifically including: the base station management station sends management configuration information to a CPU on the SOC for performing configuration management on the Modem in the base station, wherein a configuration management command sent by the base station management station is carried on an Operation Administration Maintenance (OAM) flow (operation Administration and maintenance). The base station adaptively converts the received OAM stream sent by the base station management station into a hypertext Transfer protocol Http (hypertext Transfer protocol) stream, a simple network management protocol Snmp (simple network management protocol) stream or a common language infrastructure CLI stream recognizable by a CPU on the SOC, and similarly, the Modem on the SOC in the base station sends a command carried in the Http stream, the Snmp stream or the CLI stream to the base station management station, and also needs to be converted into the OAM stream recognizable by the base station management station through the adaptation inside the base station.

The above-mentioned OAM stream sent by the base station management station is adaptively converted into a signaling stream that can be recognized by the CPU on the SOC, and a function module is added in the existing base station to complete the adaptation management function of the OAM stream, as shown in fig. 5, the added function module is a DSL management adaptation module.

The above is one of the methods for managing the configuration of the SOC-based Modem built in the base station. As shown in fig. 6, an OAM stream of configuration management information sent by a base station management station is adapted and converted into a self-defined configuration management stream in the base station, where the self-defined stream may be carried on an MAC stream, the base station sends the self-defined stream to an SOC in the base station to implement a Modem function, and the base station embeds an SOC-based Modem to adapt and convert the self-defined stream into an Http stream, an Snmp stream, or a CLI stream that can be recognized by the SOC. The method is adopted to carry out configuration management on the built-in Modem in the base station, and the efficiency is higher than that of the former method for carrying out configuration management on the built-in Modem in the base station. The OAM stream may be an Internal Process Communication (IPC) stream, and the custom stream may also be an IPC stream. The two methods can complete the configuration management of the built-in Modem based on SOC of the base station.

For the convenience of understanding, it should be noted here that in the configuration management of the SOC Modem built in the base station, the configuration management of the SOC Modem built in the base station is relatively simple compared with the configuration management of the external Modem, and the configuration management may be about the configuration management of the asynchronous Transfer mode ATM (asynchronous Transfer mode) bridge or IP bridge performed by the SOC Modem built in the base station, that is, according to the configuration management, data is processed in the ATM layer and the DSL layer in the established ATM bridge channel or IP bridge channel. The configuration management of the external Modem generally needs to complete the function of routing and forwarding data in addition to the above-mentioned function, so that the configuration management of the external Modem needs to perform the relevant configuration management on the IP layer. The configuration management of the base station built-in Modem based on SOC in the embodiment of the invention is relatively simple.

In fact, the configuration management of the base station management station on the Modem built in the base station may be one of the configuration management of the base station, and the base station further includes multiple types of configuration management, which is not exemplified here.

Step F2, the base station performs ATM layer encapsulation on the data to be transmitted in the base station according to the result of configuration management of data modulation by the Modem generated in step F1.

The data to be sent may be a standard MAC stream, and the processing on the ATM layer for the data to be sent in the base station may include: the Modem on the SOC in the base station encapsulates the standard MAC stream on the ATM adaptation layer AAL type 5, that is, the Modem on the SOC in the base station will receive the standard MAC stream according to the service type, that is: AAL type 5, creating a protocol data component, And converting the created protocol data component segmentation And reassembly SAR (segmentation And recovery) into ATM CELL CELL.

Step F3, the base station performs the DSL layer modulation processing on the ATM CELL generated after the ATM layer processing in step F2 according to the result of the configuration management of the data modulation by the Modem generated in step F1, and sends the signal conforming to the transmission on the IP network after the DSL layer modulation processing to the base station controller BSC.

Before step F1, when the base station transmits data to be transmitted to the Modem based on the SOC in the base station, a forwarding plane interface may be added between the transmission module and the Modem module to complete transmission, where a service flow carried by the forwarding plane interface is a standard MAC flow, an interface converter may be physically added to complete conversion from the ethernet on the Modem module to an internal interface of the base station, and the transmission module uses the interface as an ethernet interface of a two-layer switching device to complete transmission and reception of the service flow, where a logical framework of a base station transmission system with the Modem built in may be as shown in fig. 7. The data flow transmitted between the transmission module and the SOC chip is an Ethernet flow, i.e., a MAC flow.

The processing on the DSL layer in step F3 may generally include: scrambling, coding, interleaving, modulating, wave shaping and D/A conversion are carried out, and signals are converted into analog signals to be transmitted on an IP network. The processing at the DSL layer is done so that the data generated by the base station can be analog signals transmitted over the telephone line. The method is similar to the prior art.

Through the above steps, the Modem built in the base station can modulate the data, and the data is sent to the base station controller. Actually, the base station controller also sends data to the base station, the base station receives the analog signal sent by the base station controller, and the base station is built in to demodulate the received data according to the configuration management information generated in step F1 based on the Modem on the SOC. The process of demodulating the received data and the process of modulating the data to be transmitted are two independent processes which are not influenced by each other and are built in the base station based on the Modem on the SOC. Next, with reference to the second embodiment of the present invention, the demodulation of data by the Modem on the SOC built in the base station will be described.

In a second embodiment, a method for demodulating data by a Modem built in a base station, the method also belongs to a technical solution of building an SOC with a Modem function in a base station, and referring to fig. 8, the method includes:

step R1, the SOC-based Modem built in the base station completes the management and configuration of itself.

In general, the Modem built in the base station performs configuration management of modulation data and configuration management of demodulation data at the same time. Therefore, this step can be considered to be the same as step F1 in embodiment one. The base station may incorporate the configuration management method based on the on-SOC Modem in step F1.

And step R2, receiving the analog signal sent by the BSC by the base station based on the Modem on the SOC, performing demodulation processing on the analog signal on a DSL layer according to the result obtained by configuration management of the demodulation data, and then forming the ATM CELL.

And step R3, converting the ATM CELL into the MAC flow based on the result obtained by the configuration management of the demodulation data based on the Modem on the SOC in the base station, namely performing the decapsulation processing on the ATM CELL on the ATM layer.

In steps R1 to R3, the demodulation process of the data by the Modem on the SOC is completed in the base station.

The method provided by the first embodiment and the second embodiment can obtain that: in fact, the method for modulating or demodulating the data to be transmitted or the received analog signal based on the Modem on the SOC is built in the base station, and is similar to the method for modulating or demodulating the data to be transmitted or the received analog signal by the external Modem in the prior art. The difference is that the base station is built in with a different method of configuration management based on the Modem on SOC. In the prior art, the Modem can complete the configuration management of self-modulation data and demodulation data without any external factors; in the first and second embodiments of the present invention, the base station management station needs to send a configuration management command to the SOC-based Modem built in the base station, and the SOC-based Modem built in the base station completes configuration management of itself according to the received configuration management command.

By adopting the method for modulating data by the base station built-in DSL Modem provided by the first embodiment of the invention and the method for demodulating data by the base station built-in DSL Modem provided by the second embodiment of the invention, the modulation processing of data to be transmitted and the demodulation processing of received data can be completed by the base station built-in Modem based on SOC. The beneficial effects of the first or second embodiment of the invention are as follows:

firstly, the clock information of the base station can be acquired through a transmission interface line on the SOC, and the synchronization with the clock information of the base station is kept, and compared with the external Modem which acquires the clock information through an external GPS or a special clock line, the network building cost is reduced;

secondly, a Modem based on SOC is arranged in the base station, so that electricity can be easily obtained from the inside of the base station, and the power supply requirement of a station is simplified;

thirdly, the built-in Modem can meet the carrier-grade reliability requirement and the reliability index of a base station product;

finally, management monitoring based on the Modem on the SOC is built in the base station and is integrated into a base station management platform as a part of the base station, so that the remote management problem of the Modem is solved, and the configuration management cost is reduced.

The methods provided in the first and second embodiments of the present invention are all implemented by using an SOC as the built-in Modem in the base station, and the methods provided in the third and fourth embodiments of the present invention are all implemented by using an embedded chip as the built-in Modem in the base station.

An embodiment three is a method for modulating data by a Modem built in a base station, which belongs to a technical scheme of building an embedded chip with a Modem function in a base station, and referring to fig. 9, the method includes:

step S1, the base station completes the configuration management of the embedded chip-based Modem built in the base station. The configuration management may include: the base station manages the configuration of data modulation and the configuration of data demodulation.

Since the embedded chip implementing the Modem function usually cannot complete the configuration management of the Modem, the other modules in the base station and the embedded chip together complete the configuration management of the Modem built in the embedded chip.

Other modules in the base station may be a transmission module added in the existing base station to implement transmission of configuration management information and forwarding of data flow at the service level. Because the embedded Modem module only provides a DSL transmission channel, an interface between the transmission module and the Modem module is ATM CELL flow, the configuration management of the ATM and the above layers is completed by a CPU of the transmission module, and the Modem module only needs to provide the configuration management information of the DSL layer. Fig. 10 shows a schematic diagram of the transmission module, the Modem module, and the interfaces thereof. The architecture of the transmission module and the embedded Modem module is shown in fig. 11.

The configuration management information of the Modem based on the embedded chip built in the base station comprises configuration management information of a related DSL layer stored on a DSP (digital signal processor) called from the Modem based on the embedded chip DSP built in the base station and configuration management information generated by a non-DSP in the base station. The configuration management information generated by the non-DSP may include configuration management information related to ATM layer processing, and may further include encapsulating original data into an IP packet, encapsulating the IP packet into a standard MAC frame, and encapsulating the MAC frame into all relevant configuration management information of ATM cell. The non-DSP generated configuration management information may be configuration management information generated by configuration management performed based on an operating system in the base station and hardware devices of the non-DSP. The reason why the base station internally calls the configuration management information of the Modem on the DSL layer on the DSP chip is as follows: the DSP has no operating system, and the modulation processing on the DSL layer can not be carried out on the ATM CELL in the entering DSP chip according to the configuration management information on the DSL layer. The configuration management information stored on the DSP on the DSL layer needs to be carried to the functioning of the operating system inside the base station.

The third embodiment of the present invention may be similar to the first embodiment of the present invention in the content of the configuration management of the built-in Modem regarding data modulation, and compared with the configuration management of the Modem in the prior art, all configuration management items are reduced, for example, the related configuration on the IP layer is reduced, so that the built-in Modem does not need the function of a router, and the like.

Step S2, the Modem built in the base station and based on the embedded chip performs modulation processing on the DSL layer on the ATM CELL to be transmitted in the base station according to the management information for data modulation configuration generated in step S1, and transmits the signal which is modulated on the DSL layer and transmitted on the IP network to the base station controller BSC.

Step S2 is similar to step F3 in the first embodiment of the present invention, and the processing on the DSL layer of the ATM CELL generally includes scrambling, encoding, interleaving, modulating, wave shaping, and D/a converting the ATM CELL generated in the base station. There may be other processing methods on the DSL layer, not to mention here.

It should also be understood that the ATM CELL internally generated by the base station in step S2 may be an ATM CELL formed by receiving an IP packet by a transmission module of the base station, acquiring egress information by searching an IP route, and then encapsulating the IP packet through a MAC layer and an ATM layer.

After the data of the step S2 is processed by the DSL layer, the method may further include processing the data by the analog front end AFE and sending the processed data to the BSC through the DSL interface.

It should be noted that, the method for modulating data by a Modem built in a base station according to the third embodiment of the present invention is similar to the method provided in the first embodiment of the present invention, but the difference is that the data-related modulation processing that can be completed on the SOC in the base station is more than the data-related modulation processing on the embedded chip, that is, the SOC has more functions than the embedded chip. The functions that cannot be realized on the embedded chip but can be realized on the SOC can be completed by other parts in the base station.

In the fourth embodiment of the present invention, a method for demodulating data by using a Modem in a base station also belongs to a technical solution for placing an SOC having a Modem function in a base station, and referring to fig. 12, the method includes:

step Y1, similar to step S1 in the third embodiment, generally completes configuration management of data modulation and configuration management of data demodulation at the same time at the base station.

And step Y2, the base station receives the analog signal sent by the base station console, and the base station is internally provided with a Modem based on an embedded chip and performs demodulation processing on a DSL layer on the received analog signal according to the configuration management information about data demodulation generated in the step Y1 to generate the standard ATMCELL which can be identified in the base station.

In the above step, before performing demodulation processing of the DSL layer on the received analog signal, performing AFE processing on the analog signal received by the DSL interface may be further included. The AFE processing is physical processing of signals, i.e., amplification and filtering of transmitted signals or received signals.

It should also be understood that after step Y2, i.e. after the base station performs the processing on the DSL layer to form the ATM CELL, the MAC layer and the IP layer are performed on the formed ATM CELL to finally form the data content that can be identified by the base station. Specifically, the ATM Cell may be received by a transmission module of the base station, and then the ATM SAR and AAL5 are decapsulated and then sent to the MAC, and after the MAC decapsulation is completed, the data packet is sent to a relevant module for processing by searching an IP route.

The method for modulating data by using the DSL Modem built in the base station and the method for demodulating data by using the DSL Modem built in the base station provided by the third embodiment of the invention have the advantages similar to the first and second embodiments of the invention, and can solve the problems of reliability, power taking, clock and configuration management. The beneficial effects of the first and second embodiments of the invention are specifically referred to. Meanwhile, the embedded chip generally only provides simple processing of a DSL layer and an ATM layer, does not contain a built-in CPU, does not provide a software protocol stack, and is more suitable to be used as a solution of the built-in DSL of the base station in the aspects of software integration flexibility and hardware interface design

The above text is a description of the method provided by the embodiment of the present invention, and the embodiment of the present invention also provides a base station. The following is a description of a base station provided by an embodiment of the present invention.

In a fifth embodiment, a base station includes: a configuration unit and a data processing unit. Wherein,

Sixth, a base station includes: a configuration data unit and a second data processing unit. Wherein,

a second data processing unit for processing the data in DSL layer according to the configuration result

Seventh embodiment, a base station, referring to fig. 13, includes: a first configuration management unit 101, a DSL layer modulation unit 102, an ATM layer encapsulation unit 103, a DSL layer demodulation unit 104, and an ATM layer decapsulation unit 105.

The first configuration unit 101 is configured to receive configuration management information sent by a base station management station, and complete configuration management for modulating data to be sent and configuration management for demodulating received data;

an ATM layer encapsulation unit 103, configured to encapsulate an MAC frame to be sent into an ATM CELL according to configuration management information for modulating data to be sent in the first configuration management unit 101, and send the ATM CELL to the DSL layer modulation unit 102;

and a DSL layer modulation unit 102, configured to perform modulation processing on the ATM CELL according to the configuration management information modulated by the data to be transmitted in the first configuration management unit 101, where the modulation processing includes scrambling, encoding, interleaving, modulating, wave shaping, and D/a conversion on the ATM CELL sequentially. Finally, an analog signal is generated in the DSL layer modulation unit 102 in conformity with the transmission on the telephone line;

a DSL layer demodulation unit 104, configured to perform configuration management on received data demodulation in the first configuration management unit 101, where the received data is an analog signal, and perform demodulation processing on the received analog signal, where the demodulation processing includes processing that may sequentially perform analog-to-digital a/D conversion, demodulation, deinterleaving, decoding, and interference removal on the received analog signal. Finally, the ATM CELL is restored in the DSL layer demodulation unit 104.

An ATM layer decapsulating unit 105, configured to decapsulate the ATM CELL restored in the DSL layer demodulation unit 104 according to configuration management for received data demodulation in the first configuration management unit 101, so as to form a MAC frame.

The base station provided by the seventh embodiment of the present invention further includes: a transmitting unit 201 and a receiving unit 204, wherein the transmitting unit 201 is used for transmitting the analog signal generated in the DSL layer modulation unit 102 and transmitted on the telephone line;

the receiving unit 204 is configured to receive an analog signal sent by a base station controller, send the received analog signal to the DSL layer demodulation unit 104, and receive configuration management information sent by a base station manager.

The base station provided by the seventh embodiment of the present invention further includes: a MAC layer encapsulation unit 202, an IP layer encapsulation unit 203, a MAC layer decapsulation unit 204, and an IP layer decapsulation unit 206.

The IP layer encapsulating unit 203 is configured to encapsulate data to be sent into an IP datagram according to configuration management of data to be sent modulation in the first configuration management unit 101.

The MAC layer encapsulating unit 202 is configured to encapsulate, according to configuration management of data modulation to be transmitted in the first configuration management unit 101, the IP datagram generated in the IP layer encapsulating unit 203 into a MAC frame, and transmit the MAC frame to the ATM layer encapsulating unit 103.

A MAC layer decapsulating unit 204, configured to decapsulate the MAC frame generated in the ATM layer decapsulating unit 105 according to configuration management for demodulating received data in the first configuration management unit 101, to form an IP data packet, and send the formed IP data packet to the IP decapsulating unit 206.

An IP decapsulating unit 206, configured to decapsulate the IP datagram generated in the MAC layer decapsulating unit 204 into information recognizable by the base station according to configuration management for demodulating received data in the first configuration management unit 101.

When a base station needs to send data, firstly, the data to be sent is encapsulated in an IP layer encapsulation unit 203, the IP layer encapsulation unit 203 forms an IP datagram according to the configuration management information in the first configuration management unit 101, and the IP datagram is sent to an MAC layer encapsulation unit 202; the MAC layer encapsulation unit 202 encapsulates the IP datagram into a MAC frame according to the configuration management information in the first configuration management unit 101, and sends the MAC frame to the ATM layer encapsulation unit 103; the ATM layer encapsulation unit 103 repacks the MAC frame according to the configuration management information in the first configuration management unit 101 to form an ATM CELL, and sends the ATM CELL to the DSL layer modulation unit 102; the DSL layer modulation unit 102 performs scrambling, encoding, interleaving, modulation, wave shaping, and D/a conversion on the ATM CELL according to the configuration management information in the first configuration management unit 101, and finally generates an analog signal in the DSL layer modulation unit 102, the analog signal being in accordance with transmission on the telephone line; the transmitting unit 201 transmits the analog signal generated in the DSL layer modulating unit 102. The above process includes the modulation process of the data to be transmitted by the base station.

When the base station receives the analog signal sent by the base station controller, the receiving unit 204, the DSL layer demodulation unit 104, the ATM layer decapsulation unit 105, the MAC layer decapsulation unit 204, and the IP layer decapsulation unit 206 in the base station sequentially perform the above processing in each unit, and the processing procedure is opposite to the modulation processing of the data to be sent, which can be easily estimated and is easy to implement.

It should be noted that, in addition to the above functional units, the base station provided in the seventh embodiment of the present invention further includes other functional units for implementing the functions of the base station. Reference may be made to the prior art, which may be similar to the prior art.

The base station provided by the seventh embodiment of the present invention has a Modem function, and does not need to add a network element during networking, that is, does not use an external Modem, and has the following beneficial effects:

firstly, the base station has the modulation and demodulation function, the clock information of the base station acquired by a physical transmission interface line for realizing the modulation and demodulation function keeps synchronous with the clock information of the base station, and compared with the external Modem which acquires the clock information by externally connecting a GPS (global positioning system) or pulling a special clock line, the network construction cost is reduced;

secondly, a physical entity for realizing the modulation and demodulation function in the base station can easily get electricity from the inside of the base station, so that the power supply requirement of a station is simplified;

finally, the management and monitoring of the physical entity with the modulation and demodulation function in the base station are integrated into a base station management platform as a part of the base station, so that the remote management problem of the Modem is solved, and the configuration management cost is reduced.

Eighth embodiment, a base station, in which a Modem function is implemented based on an SOC, referring to fig. 14, includes: the SOC chip 30, the adaptation unit 40 and the base station fulfill other functions. Wherein, the SOC still includes: a second configuration management unit 31, a second ATM layer encapsulation unit 32, a second DSL layer modulation unit 33, a second DSL layer modulation unit 34 and a second ATM layer encapsulation unit 35. In fact, the sixth embodiment of the present invention is similar to the fifth embodiment of the present invention, except that the sixth embodiment of the present invention provides for the physical implementation of the functions including the above-described units on the SOC chip.

Since the second configuration management unit 30 in the SOC-based Modem cannot perform configuration management of the Modem alone, it is necessary to perform configuration management of modulation of data to be transmitted and configuration management of demodulation of received data in common with communication with the base station management station. The device is further described below with reference to specific application scenarios.

The base station management station sends the base station configuration management command, and since the configuration management information sent by the base station management station is carried on the OAM flow, the second configuration management unit 31 built in the base station on the SOC cannot directly identify the OAM flow, therefore, the adaptation unit 40 in the base station adapts the OAM flow sent by the base station management station to convert the Http, Snmp flow or CLI flow that can be identified by the second configuration management unit 31 on the SOC. The adaptation unit 40 sends the Http stream, the Snmp stream, or the CLI stream adapted and converted to the Http stream, the Snmp stream, or the CLI stream to the second configuration management unit 31 based on the SOC, where a process of sending the information about the operating state of the Modem by the second configuration management unit 31 in the base station is opposite to a process of sending the configuration management information sent by the management station of the base station to the second configuration management unit 31, and is easy to be deduced, the second configuration management unit 31 sends the information about the operating state of the Modem carried on the Http stream, the Snmp stream, or the CLI stream to the adaptation unit 40, and the adaptation unit 40 receives the response configuration management information carried on the Http stream, the Snmp stream, or the CLI stream, and adapts and converts the Http stream, the Snmp stream, or the CLI stream into the OAM stream, only converts the stream form, and the content of the information about the operating state of the Modem carried therein is unchanged; the adaptation unit 40 sends the converted information about the Modem operating state carried on the OAM flow to the bs.

The above internal unit module of the base station completes the description of the configuration management of the Modem, and therefore, the modulation processing and demodulation processing of the data by each unit in the base station can be realized according to the configuration management information generated by the completed configuration management of the Modem. The specific process is similar to that described in example seven, and reference may be made to that described in example seven.

The embodiment of the invention also provides a base station, which is similar to the base station provided by the eighth embodiment of the invention, and the base station is also internally provided with a function of realizing a Modem on the basis of SOC; the base station is different from the base station provided by the sixth embodiment of the invention in that: the SOC completing the Modem function also provides an adaptive conversion function for the user-defined flow of the bearer configuration management information, so that the efficiency of transmitting the bearer configuration management information is high, and a base station system is simpler. The following describes the present invention in detail in the ninth embodiment.

Ninth embodiment, a base station having a built-in SOC-based Modem function, similar to the eighth embodiment, with reference to fig. 15, includes: the second SOC chip 60, the second adaptation unit 50 and the base station fulfill other functional modules.

Wherein the second SOC chip 60 includes: a fourth configuration management unit 61, a second ATM layer encapsulation unit 32, a second DSL layer modulation unit 33, a second DSL layer modulation unit 34, a second ATM layer encapsulation unit 35 and a third adaptation unit 66. In fact, the seventh embodiment of the present invention is similar to the eighth embodiment of the present invention, and the functions of the units described above are implemented on the second SOC chip 60 in physical implementation; what is different from the above, in the ninth embodiment of the present invention, a third adapting unit 66 is added to the second SOC chip 60, compared with the SOC chip 30 in the fifth embodiment, and is configured to send the custom stream carrying the configuration management command sent by the second adapting unit 50 in the base station to the SOC chip, the third adapting unit 66 on the SOC chip converts the custom stream into an Http stream, an Snmp stream, or a CIL stream that can be identified by the fourth configuration managing unit 61 in the SOC chip, and the fourth configuration managing unit 61 performs management configuration on the Modem on the SOC chip according to the received management stream in the form of the Http stream, the Snmp stream, or the CIL stream.

The second adapting unit 50 is configured to convert an OAM stream that is sent by the base station console and carries a configuration management command into a custom stream, and send the custom stream to the third adapting unit 66, and is further configured to convert the custom stream into an OAM stream, and send the OAM stream to the base station console. The advantage of using the customized stream is that the transmission efficiency of the stream carrying the configuration management information is high.

The second SOC chip 60 cannot perform configuration management of the Modem alone, and needs to communicate with the base station management station to perform configuration management of the Modem together. The method specifically comprises the following implementation steps:

the base station management station sends the OAM flow carrying the configuration management command for the Modem to the base station, and the fourth configuration management unit 61 built in the base station based on the SOC cannot directly identify the OAM flow, so the second adapting unit 50 adapts the OAM flow sent by the base station management station to convert it into a custom flow, and the custom flow can be carried on the MAC flow. The second adaptation unit 50 sends the customized stream carrying the configuration management information to the third adaptation unit 66, and the third adaptation unit 66 adapts and converts the customized stream into an Http stream, a Snmp stream or a CLI stream; the third adapting unit 66 sends the converted result to the fourth configuration managing unit 61, the fourth configuration managing unit 61 completes configuration management of the Modem according to the received configuration management information carried on the Http stream, the Snmp stream, or the CLI stream, and the fourth configuration managing unit 61 may also send information about the operating state of the Modem built in the base station to the base station management station.

The above units together complete the configuration management of the Modem unit, which may include the configuration management of Modem for data modulation and the configuration management of analog signal demodulation. After the configuration management is completed, the modulation processing or demodulation processing of the data to be transmitted or the received analog signal based on each unit of the SOC chip 60 in the base station is similar to that in the seventh and eighth embodiments of the present invention, and reference may be made to the description in the seventh or eighth embodiment.

The base station provided in the eighth and ninth embodiments of the present invention has a built-in Modem function implemented on an SOC, so that the base station has a Modem function without adding a network element, that is, without using an external Modem.

The eighth and ninth embodiments of the present invention provide a base station, where the Modem function built in the base station is based on the SOC, and the eighth embodiment of the present invention further provides a base station, where the base station may also complete the Modem function, and the built-in Modem function is implemented based on an embedded chip. The following describes an eighth embodiment of the present invention.

In a tenth embodiment, a base station, where functions of a Modem module built in the base station are implemented by an embedded chip, referring to fig. 16, includes: the embedded chip 90, the fifth configuration management unit 111, and the units similar to those in the fifth embodiment include: an ATM layer encapsulation unit 103, an ATM layer decapsulation unit 105, a MAC layer encapsulation unit 202, a MAC layer decapsulation unit 204, an IP layer encapsulation unit 203, and an IP layer decapsulation unit 206.

Wherein the embedded chip 90 includes: a DSL layer modulation unit 901, a DSL layer demodulation unit 902, and a DSL configuration management library unit 903. The DSL configuration management library unit 903 is configured to provide the fifth configuration management unit 111 with configuration management information on the DSL layer.

For easy understanding, since in the embedded chip 90, the DSL configuration management library unit 903 cannot directly implement configuration management on data modulation in the DSL layer modulation unit 901 and configuration management on data demodulation in the DSL layer demodulation unit 902, information about DSL layer configuration management in the DSL configuration management library unit 903 needs to be sent to the fifth configuration management unit 111 to complete configuration management on data modulation in the DSL layer modulation unit 901 and configuration management on data demodulation in the DSL layer demodulation unit 902. The specific process may be that the configuration management information in the DSL configuration management library unit 902 implements configuration management on data in the DSL layer modulation unit 901 or in the DSL layer demodulation unit 902 based on an operating system, such as a Vxworks operating system, in the fifth configuration management unit 111.

In fact, the eighth embodiment is the same as the seventh embodiment of the present invention except that the operation process of configuration management is different from that of the fifth embodiment. Reference may be made to the description of embodiment seven of the present invention. It should be noted that, in the tenth embodiment, the physical interface for transmitting the ATM CELL between the embedded chip 90 and the ATM layer encapsulation unit 103 or the ATM layer decapsulation unit 105 may be an ATM Universal Test and execution physical layer (UTOPIA) interface.

The embedded chip 90 in the tenth embodiment is only used to limit: the embedded chip 90 is a physical entity that can implement functions including: a DSL layer modulation unit 901, a DSL layer demodulation unit 902, and a DSL configuration management library unit 903. The part of the Modem function that cannot be completely realized on the embedded chip or SOC is realized by other parts in the base station.

In the base station provided in the tenth embodiment of the present invention, the embedded chip is used to implement the Modem function inside the base station, so that the base station has the Modem function without adding a network element, i.e., without using an external Modem. The beneficial effects of the fifth embodiment of the invention are specifically referred to.

The above is a description of the base station provided in the embodiment of the present invention, and a description of a communication system provided in the embodiment of the present invention is provided below.

An embodiment eleven, a communication system, see fig. 17, includes a base station 70 and a base station controller 80. The base station is configured to perform configuration management on a Modem built in the base station, modulate data into an analog signal transmitted on a DSL line according to a result of the configuration management, and transmit the analog signal to the base station controller, and demodulate a received analog signal transmitted by the base station controller into data identified by the base station, including: carrying out demodulation processing on a DSL layer and de-encapsulation processing on an ATM layer on the received analog signal; the base station controller is used for receiving the analog signal transmitted on the DSL line and sent by the base station, and is also used for sending the analog signal which is transmitted on the DSL line to the base station.

In the embodiment of the present invention, two physical implementation methods of the Modem built in the base station are provided, one is to implement the Modem function built in the base station through the SOC, and the other is to implement the Modem function built in the base station through the embedded chip.

For convenience of understanding, the base station 70 in a communication system provided in the eleventh embodiment of the present invention may be the base station provided in the fifth to tenth embodiments. The base station provided in the eighth or ninth embodiment is implemented by the SOC, and the base station provided in the tenth embodiment is implemented by the embedded chip. The description of the base station 70 in a communication system according to the eleventh embodiment of the present invention may refer to the description of the fifth to tenth embodiments, and the base station controller 80 in the communication system is similar to the base station controller in the prior art.

It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes the following steps:

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

The transmission method, system and apparatus of a base station built-in modem provided by the embodiments of the present invention are described in detail above, and a specific example is applied in the present disclosure to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A method for processing data of a modem built in a base station, comprising:

a modem arranged in a base station configures an ATM layer and a DSL layer of a digital subscriber line according to received configuration management information, wherein the received configuration management information is specifically an operation administration maintenance OAM flow sent by a receiving base station management platform, the OAM flow carries configuration management information, and the configuration management information is specifically configuration management information of the ATM layer and the DSL layer;

processing the data by an ATM layer and a DSL layer according to the configuration result;

wherein the received configuration management information specifically includes: and converting the OAM stream into a custom stream, and then converting the custom stream into a stream which can be recognized by the SOC.

2. The process of claim 1 wherein the ATM layer and DSL layer processing of the data is: and carrying out modulation processing of an ATM layer and a DSL layer on the data or carrying out demodulation processing of the ATM layer and the DSL layer on the data.

3. The method of processing of claim 1, wherein the data is an ethernet stream.

4. A method for processing data of a modem built in a base station, comprising:

configuring a DSL layer of a built-in modem of a base station according to configuration management information received from the DSL layer of a built-in modem of the base station;

the built-in modem of the base station processes the DSL layer to the data according to the result of configuration;

the method still further comprises:

according to the received configuration management information from the base station management station, the ATM layer and the media access control MAC layer are configured and managed;

and processing the ATM CELL CELL from the built-in modem of the data base station by an ATM layer and an MAC layer according to the configuration result.

5. A base station, comprising:

a configuration unit, configured to configure an ATM layer and a DSL layer according to received configuration management information, where the received configuration management information is an OAM flow sent by a receiving base station management station, where the OAM flow carries configuration management information, and the configuration management information is configuration management information of the ATM layer and the DSL layer; wherein the received configuration management information specifically includes: converting the OAM stream into a custom stream, and then converting the custom stream into a stream which can be recognized by a System On Chip (SOC);

6. A base station, comprising:

the ATM layer decapsulation unit is used for decapsulating the ATM CELL formed after the DSL layer demodulation unit processes the ATM CELL on the ATM layer according to the preset configuration management information to form an MAC frame;

the first configuration management unit is used for carrying out configuration management on a modem built in a base station and generating configuration management information;

an adaptation unit, configured to receive an OAM stream, convert the OAM stream into an Http stream, an Snmp stream, or a CIL stream, and send the Http stream, the Snmp stream, or the CIL stream to the first configuration management unit, where the OAM stream carries a configuration management command.

7. The base station of claim 6, wherein the base station further comprises:

the second adaptation unit is used for receiving an OAM flow and converting the OAM flow into a custom flow, wherein the OAM flow carries a configuration management command;

and the third adapting unit is used for receiving the custom stream, converting the custom stream into an Http stream, an Snmp stream or a CIL stream, and sending the Http stream, the Snmp stream or the CIL stream to the first configuration management unit.

8. The base station of claim 7, wherein the base station further comprises:

and the DSL configuration management library unit is used for sending configuration management information on a DSL layer to the first configuration management unit.

9. The base station according to any of claims 6 to 8, wherein the base station further comprises:

the transmitting unit is used for transmitting the analog signal formed by the DSL layer modulation unit to the base station controller;

and the receiving unit is used for receiving the analog signal sent by the base station controller.

10. The base station according to any of claims 6 to 8, wherein the base station further comprises:

an IP layer encapsulation unit, which is used for encapsulating the data to be sent into an IP datagram according to the preset configuration management information;

the MAC layer encapsulation unit is used for encapsulating the IP datagram into an MAC frame according to the preset configuration management information;

a MAC layer decapsulation unit, configured to decapsulate, according to the preset configuration management information, the MAC frame formed in the ATM layer decapsulation unit to form an IP datagram;

and the IP layer decapsulation unit is used for decapsulating the IP data message formed in the MAC layer decapsulation unit according to the preset configuration management information.

11. A communication system, comprising: a base station and a base station controller, wherein,

or according to the preset configuration management information, carrying out demodulation processing on a DSL layer on the received analog signal sent by the base station controller to form an ATM cell, and carrying out de-encapsulation on the ATM layer on the ATM cell to form an MAC frame; wherein the configuration management information specifically includes: converting the OAM stream into a custom stream, and then converting the custom stream into a stream which can be recognized by a System On Chip (SOC);

12. The communication system of claim 11, wherein the base station is further configured to perform configuration management on a modem built in the base station, and generate the configuration management information.