WO2018072077A1

WO2018072077A1 - Data transmission method and related device

Info

Publication number: WO2018072077A1
Application number: PCT/CN2016/102351
Authority: WO
Inventors: 高兴国; 沈承虎; 熊宇鹏
Original assignee: 华为技术有限公司
Priority date: 2016-10-18
Filing date: 2016-10-18
Publication date: 2018-04-26

Abstract

Provided by the embodiments of the present invention is a data transmission method. An aggregation coaxial media converter (CMC) device receiving first service data sent by an aggregation device, and then modulating the first service data into a first radio frequency signal, the first radio frequency signal being carried by means of a channel having a predefined transmission spectrum; sending the first radio frequency signal to an access CMC device; the access CMC device may demodulate the first radio frequency signal so as to obtain the first service data; the access CMC device determining a target channel corresponding to the first service data according to a service carrying spectrum pre-defined by at least one branch network, and then modulating the first service data into a second radio frequency signal carried by means of the target channel and transmitting to each branch network device. Using the present invention, the bandwidth allocated to a user may be increased.

Description

Data transmission method and related equipment

Technical field

The present invention relates to the field of electronic technologies, and in particular, to a data transmission method and related equipment.

Background technique

With the rapid development of network technology, cable TV technology and communication technology, users have put forward new requirements for information exchange and network transmission. Therefore, the voice of integrating cable TV system, computer network and telecommunication network is getting higher and higher. The network structure of hybrid fiber-coaxial cable (HFC, Hybrid Fiber-Coaxial) is used to transmit data such as data and video.

In the current cable (cable cable) HFC network, data, video and other services are usually transmitted using a centralized network architecture as shown in Figure 1. In Figure 1, the Converged Cable Access Platform (CCAP) is a centralized data and video service processing system located in the central office. The system modulates IP service data into RF signals and transmits them to analog light through the cable medium. Transmitter, the analog optical transmitter modulates the received radio frequency signal into an analog optical signal and transmits it to an analog optical receiver (Receiver), and the analog optical receiver demodulates the received optical signal into a radio frequency The signal is then transmitted to the at least one branch network via an active amplification network formed by a repeater amplifier and a distribution amplifier. The problem with this centralized network architecture is that the spectrum of the radio frequency signals carried between the CCAP and the transmission networks of the branch networks is very limited (for example, the 860 Hz spectrum range shown in Figure 1), so that the total bandwidth of the entire network is also very limited. In the network architecture shown in Figure 1, a CCAP covers a large number of users, so that under a very limited total bandwidth, each user's bandwidth is low. As the demand for network bandwidth increases, the network architecture shown in Figure 1 cannot meet the needs of network bandwidth enhancement.

Summary of the invention

The present invention provides a data transmission method and related equipment, which performs node splitting on an existing network architecture and improves network bandwidth allocated to each user.

The first aspect provides a data transmission method. Convergence Coaxial Media Converter CMC (Coaxial The device receives the first service data sent by the aggregation device, and then modulates the first service data into a first radio frequency signal, where the first radio frequency signal is carried through a channel of a predefined transmission spectrum, and is converted to the access coaxial medium. The CMC (Coaxial Media Converter) device sends a first radio frequency signal, and the access CMC device can demodulate the first radio frequency signal to obtain the first service data, and the access CMC device determines the first service bearer spectrum according to the at least one branch network. After the target channel corresponding to the service data, the first service data is modulated into a second radio frequency signal carried by the target channel and transmitted to each branch network device.

In the technical solution, the aggregation CMC device modulates the first service data into the first radio frequency signal, and transmits the first radio frequency signal to the access CMC through a predefined channel that is extended relative to the existing transmission spectrum. The device accesses the CMC device to demodulate the first radio frequency signal to obtain the first service data and transmits the first service data to the at least one branch network, that is, by extending the transmission spectrum, the service data transmitted by the convergence CMC device to the CMC device can be greatly increased. Upgrade to increase network bandwidth. In addition, each aggregated CMC device carries a large number of users, and joining the access to the CMC device is equivalent to splitting the node of the original data transmission network, so that the number of users carried by each access CMC device is reduced. When the transmission spectrum range of the access CMC device is unchanged, the bandwidth allocated by each user will increase.

In a first possible implementation manner of the first aspect, the convergence CMC device receives the first service data that is sent by the aggregation device and carries the second DOCSIS control information, and modulates the first service data into the first radio frequency signal, and accesses the CMC. The device sends a first radio frequency signal carrying the second DOCSIS control information, and the access CMC device demodulates the first radio frequency signal carrying the second DOCSIS control information to obtain the first service data, and accesses the CMC device according to the first service data. The type determines the first target control information carried by the second radio frequency information and modulates the first service data into a second radio frequency signal carrying the first target control information, where the first target control information includes the first EQAM control information and the first At least one of the DOCSIS control information.

In a second possible implementation manner of the first aspect, the convergence CMC device receives the first service data that is sent by the aggregation device and carries the first target control information, where the first target control information includes the first EQAM control information and the first DOCSIS control. At least one of the information modulates the first service data into the first radio frequency signal, and sends the first radio frequency signal carrying the first target control information to the access CMC device.

In a third possible implementation manner of the first aspect, the convergence CMC device receives the first service data that is sent by the aggregation device and carries the first target control information, where the first target control information includes the first EQAM control information and the first DOCSIS control. At least one of the information modulates the first service data carrying the first target control information into a first radio frequency signal carrying the first target control information and the second DOCSIS control information, and sends the first target control information to the access CMC device. And the first radio frequency signal of the second DOCSIS control information, the access CMC device demodulates the first radio frequency signal according to the second DOCSIS control information, and acquires the first service data carrying the first target control information and carries the first target control information. The first service data is modulated into a second radio frequency signal carrying the first target control information.

In a fourth possible implementation manner of the first aspect, the convergence CMC device modulates the first service data into a first radio frequency signal that carries the second DOCSIS control information, and modulates the first service data into the first radio frequency signal, The inbound CMC device sends a first radio frequency signal carrying the second DOCSIS control information, and the access CMC device demodulates the first radio frequency signal according to the second DOCSIS control information to obtain the first service data, and accesses the CMC device according to the first service data. Determining the first target control information carried by the second radio frequency information and modulating the first service data into a second radio frequency signal carrying the first target control information, where the first target control information includes the first EQAM control information and At least one of the first DOCSIS control information.

With reference to the first aspect, or any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the convergence CMC device receives the convergence device and transmits the information through the Ethernet network. The first service data, or the first service data of the receiving aggregation device transmitted through the passive optical network PON.

With reference to the first aspect or any one of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the convergence CMC device according to the DOCSIS 3.1 The standard is modulated into a first radio frequency signal, and the first radio frequency signal is carried through a channel of a predefined transmission spectrum.

In the technical solution, the convergence CMC device modulates the first service data into the first RF signal based on the DOCSIS 3.1 standard, and the transmission spectrum is 1.2 GHz or 1.8 GHz in the DOCSIS 3.1 standard, and the transmission spectrum of the existing 860 MHz or 1 GHz is defined. The expansion has made the service data transmitted from the aggregation CMC device to the CMC device greatly increased, thereby increasing the network bandwidth. Further, compared with the 256QAM modulation supported by the existing network, the DOCSIS 3.1 standard can support 16KQAM modulation at most, which means that the service data that can be carried by each HZ in the transmission spectrum increases, and the spectrum utilization rate is improved, and the corresponding improvement is also improved. The bandwidth of the network.

In conjunction with the first aspect, or any one of the first to sixth possible implementations of the first aspect, in a seventh possible implementation of the first aspect, the spectral width of the transmission spectrum is not less than 1.2 GHz.

In the technical solution, the spectrum of the transmission spectrum carrying the first radio frequency signal has a spectrum width of not less than 1.2 GHz, and is expanded compared to the existing transmission spectrum of 860 MHz or 1 GHz, so that the aggregated CMC device transmits the service to the CMC device. The data has been greatly improved to increase network bandwidth.

The second aspect provides another method of data transmission. The aggregate CMC device receives a third radio frequency signal obtained by modulating the second service data sent by the coaxial media converter CMC device, wherein the third radio frequency signal is carried through a channel in a predefined transmission spectrum, and then demodulated third. The radio frequency signal acquires the second service data, and sends the second service data to the aggregation device, so that the aggregation device transmits the second service data to the core network.

In the technical solution, the access CMC device modulates the second service data into a third RF signal to be transmitted to the convergence CMC device, and the third RF signal is through a predefined transmission spectrum with respect to the existing transmission spectrum. After the channel is carried, the convergence CMC device demodulates the third RF signal to obtain the second service data and transmits the data to the aggregation device. That is to say, by extending the transmission spectrum, the service data transmitted to the aggregation CMC device by the CMC device can be greatly improved. Thereby increasing network bandwidth. In addition, each aggregated CMC device carries a large number of users, and joining the access to the CMC device is equivalent to splitting the node of the original data transmission network, so that the number of users carried by each access CMC device is reduced. When the transmission spectrum range of the access CMC device is unchanged, the bandwidth allocated by each user will increase.

In a first possible implementation manner of the second aspect, the convergence CMC device receives the third radio frequency signal that is sent by the CMC device and carries the fourth DOCSIS control information, and demodulates the third radio frequency signal to obtain the second service data. The aggregation device sends the second service data carrying the fourth DOCSIS control information, and the aggregation device demodulates the second service data carrying the fourth DOCSIS control information to obtain the second service data and transmit the second service data to the core network.

In a second possible implementation manner of the second aspect, the convergence CMC device receives the third radio frequency signal that is sent by the CMC device and carries the second target control information and the fourth DOCSIS control information, where the second target control information includes At least one of the second EQAM control information and the third DOCSIS control information, demodulating the third radio frequency signal to obtain the second service data, and transmitting, to the convergence device, the second service data carrying the second target control information and the fourth DOCSIS control information, The aggregation device demodulates the second service data carrying the second target control information and the fourth DOCSIS control information to obtain the second service data and transmit the second service data to the core network.

In a third possible implementation manner of the second aspect, the convergence CMC device receives the third radio frequency signal that is sent by the CMC device and carries the second target control information and the fourth DOCSIS control information, where the second target control information includes Demodulating at least one of the second EQAM control information and the third DOCSIS control information, the third radio frequency signal carrying the second target control information and the fourth DOCSIS control information, to obtain the second service data carrying the second target control information, The second service data carrying the second target control information is sent to the aggregation device, and the aggregation device demodulates the second service data carrying the second target control information to obtain the second service data and transmit the second service data to the core network.

In a fourth possible implementation manner of the second aspect, the convergence CMC device receives the third radio frequency signal that is sent by the CMC device and carries the fourth DOCSIS control information, and demodulates the third radio frequency signal that carries the fourth DOCSIS control information. Obtain second business data.

With reference to the second aspect or any one of the first to fourth possible implementation manners of the second aspect, in a fifth possible implementation manner of the second aspect, the convergence CMC device sends the first to the convergence device by using an Ethernet network Second, the service data, or the second service data is sent to the aggregation device through the passive optical network PON.

With reference to the second aspect or any one of the first to fifth possible implementation manners of the second aspect, in a sixth possible implementation manner of the second aspect, the convergence CMC device receives the access sent by the CMC device The second service data is modulated into a third radio frequency signal according to the DOCSIS 3.1 standard, wherein the third radio frequency signal is carried by a channel in a predefined transmission spectrum.

In the technical solution, the access CMC device modulates the second service data into the third RF signal based on the DOCSIS 3.1 standard, and the DOCSIS 3.1 standard defines the transmission spectrum to be 1.2 GHz or 1.8 GHz for the transmission of the existing 860 MHz or 1 GHz. Expansion of the spectrum to enable access The service data transmitted by the CMC device to the aggregation CMC device is greatly improved, thereby increasing the network bandwidth. Further, compared with the 256QAM modulation supported by the existing network, the DOCSIS 3.1 standard can support 16KQAM modulation at most, which means that the service data that can be carried by each HZ in the transmission spectrum increases, and the spectrum utilization rate is improved, and the corresponding improvement is also improved. The bandwidth of the network.

In conjunction with the second aspect or the possible implementation of any one of the first to sixth aspects of the second aspect, in a seventh possible implementation of the second aspect, the spectral width of the transmission spectrum is not less than 1.2 GHz.

In the technical solution, the spectrum of the transmission spectrum carrying the third radio frequency signal has a spectrum width of not less than 1.2 GHz, and is expanded compared to the existing transmission spectrum of 860 MHz or 1 GHz, so that the access CMC device transmits the service to the converged CMC device. The data has been greatly improved to increase network bandwidth.

The third aspect provides another method of data transmission. Accessing the coaxial media converter CMC device receives the first radio frequency signal modulated by the converged coaxial media converter CMC device and modulating the first service data, and the first radio frequency signal is carried through a channel of a predefined transmission spectrum, and demodulation An RF signal is obtained to obtain the first service data, and the target channel corresponding to the first service data is determined according to the predefined service bearer spectrum of the at least one branch network, and the first service data is modulated into the second RF signal carried by the target channel, Each branch network device sends the second radio frequency signal.

In a first possible implementation manner of the third aspect, the access CMC device receives the first radio frequency signal that is sent by the convergence CMC device and carries the second DOCSIS control information, and demodulates the first radio frequency signal according to the second DOCSIS control information to obtain First service data, according to at least one branch network pre- Determining a service bearer spectrum, determining a target channel corresponding to the first service data, and determining first target control information corresponding to a type of the first service data, where the first target control information includes the first EQAM control information and the first DOCSIS At least one of the control information, the first service data is modulated into a second radio frequency signal carried by the target channel and carrying the first target control information, and the first target control is sent to each branch network device. The second RF signal of the information.

In a second possible implementation manner of the third aspect, the accessing CMC device receives the first radio frequency signal that is sent by the convergence CMC device and carries the first target control information, where the first target control information includes the first EQAM control information and the first At least one of the DOCSIS control information, demodulating the first radio frequency signal to obtain the first service data carrying the first target control information, and determining, according to the predefined service bearer spectrum of the at least one branch network, the first service data corresponding to the first service data The target channel modulates the first service data into a second radio frequency signal carried by the target channel and carries the first target control information, and sends a second radio frequency signal carrying the first target control information to each branch network device.

In a third possible implementation manner of the third aspect, the accessing CMC device receives the first radio frequency signal that is sent by the convergence CMC device and carries the first target control information and the second DOCSIS control information, where the first target control information includes Demodulating the first radio frequency signal according to the second DOCSIS control information to obtain first service data carrying the first target control information according to at least one of the EQAM control information and the first DOCSIS control information, according to the at least one branch network Defining a service bearer spectrum, determining a target channel corresponding to the first service data, and modulating the first service data into a second radio frequency signal carried by the target channel and carrying the first target control information, to each branch network device Sending a second radio frequency signal carrying the first target control information.

With reference to the third aspect, or any one of the first to the third possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect, the access CMC device receives the convergence sent by the convergence CMC device The first service data is modulated into a first radio frequency signal according to the DOCSIS 3.1 standard, and the first radio frequency signal is carried by a channel in a predefined transmission spectrum.

In the technical solution, the convergence CMC device modulates the first service data into the first RF signal based on the DOCSIS 3.1 standard, and the transmission spectrum is 1.2 GHz or 1.8 GHz in the DOCSIS 3.1 standard, and the transmission spectrum of the existing 860 MHz or 1 GHz is defined. The expansion has made the service data transmitted from the aggregation CMC device to the CMC device greatly increased, thereby increasing the network bandwidth. Further, compared to the 256QAM modulation supported by the existing network, the DOCSIS 3.1 standard is the most It can support 16KQAM modulation, which means that the traffic data can be carried by each HZ in the transmission spectrum, which improves the spectrum utilization and correspondingly increases the bandwidth of the network.

In conjunction with the third aspect or the possible implementation of any one of the first to fourth aspects of the third aspect, in a fifth possible implementation of the third aspect, the spectral width of the transmission spectrum is not less than 1.2 GHz.

The fourth aspect provides another method of data transmission. Receiving, by the at least one branch network device, a fourth radio frequency signal modulated by the second service data, demodulating the fourth radio frequency signal to obtain second service data, and modulating the second service data into a third radio frequency signal, the third radio frequency The signal is carried by a channel in a predefined transmission spectrum, and the third radio frequency signal is sent to the converged coaxial media converter CMC device, and the convergence CMC device demodulates the third radio frequency signal to obtain the second service data and sends the second service data to the convergence device. Two business data.

In a first possible implementation manner of the fourth aspect, the receiving CMC device receives the fourth radio frequency information that is sent by the at least one branch network device and carries the second target control information, where the second target control information includes the third DOCSIS control information and the At least one of the two EQAM control information, demodulating the fourth radio frequency information carrying the second target control information to obtain the second service data, and modulating the second service data into the third radio frequency signal carrying the fourth DOCSIS control information, to aggregate CMC equipment Sending a third radio frequency signal carrying fourth DOCSIS control information.

In a second possible implementation manner of the fourth aspect, the access CMC device receives the fourth radio frequency information that is sent by the at least one branch network device and carries the second target control information, where the second target control information includes the third DOCSIS control information and At least one of the second EQAM control information, demodulating the fourth radio frequency information carrying the second target control information to obtain the second service data carrying the second target control information, and modulating the second service data carrying the second target control information The third radio frequency signal carrying the second target control information and the fourth DOCSIS control information is sent to the convergence CMC device to transmit the third radio frequency signal carrying the second target control information and the fourth DOCSIS control information.

With reference to the fourth aspect, or any one of the first to the second possible implementation manners of the fourth aspect, in a third possible implementation manner of the fourth aspect, the accessing the CMC device according to the DOCSIS 3.1 The standard is modulated into a third RF signal, the first RF signal being carried over a channel of a predefined transmission spectrum.

In the technical solution, the access CMC device modulates the second service data into the third RF signal based on the DOCSIS 3.1 standard, and the DOCSIS 3.1 standard defines the transmission spectrum to be 1.2 GHz or 1.8 GHz for the transmission of the existing 860 MHz or 1 GHz. The expansion of the spectrum enables the service data transmitted to the CMC device to be aggregated to the CMC device to be greatly improved, thereby increasing the network bandwidth. Further, compared with the 256QAM modulation supported by the existing network, the DOCSIS 3.1 standard can support 16KQAM modulation at most, which means that the service data that can be carried by each HZ in the transmission spectrum increases, and the spectrum utilization rate is improved, and the corresponding improvement is also improved. The bandwidth of the network.

In conjunction with the fourth aspect or the possible implementation of any one of the first to third aspects of the fourth aspect, in a fourth possible implementation of the fourth aspect, the spectral width of the transmission spectrum is not less than 1.2 GHz.

The fifth aspect provides a network device, which is a converged coaxial media converter CMC device. The aggregate CMC device includes a processor, a memory, and a network interface. The processor is coupled to the memory and network interface, for example, the processor can be coupled to the memory and network interface via a bus. network The network interface is used for connecting to the aggregation device and the access coaxial media converter CMC device, and the aggregation device and the access coaxial media converter CMC device are capable of transmitting and receiving messages involved in the foregoing method. The memory is used to store the first service data. The processor is configured to perform some or all of the processes of the first aspect.

The sixth aspect provides another network device, which is a converged coaxial media converter CMC device. The aggregation CMC device includes a processing module, a sending module, and a receiving module. The aggregated CMC device implements some or all of the methods of the first aspect through the above modules.

A seventh aspect provides a network device, the network device being a converged coaxial media converter CMC device. The aggregate CMC device includes a processor, a memory, and a network interface. The processor is coupled to the memory and network interface, for example, the processor can be coupled to the memory and network interface via a bus. The network interface is used for connecting to the aggregation device and the access coaxial media converter CMC device, and the aggregation device and the access coaxial media converter CMC device are capable of transmitting and receiving messages involved in the above method. The memory is used to store the second service data. The processor is configured to perform some or all of the processes of the second aspect.

The eighth aspect provides another network device, which is a converged coaxial media converter CMC device. The aggregation CMC device includes a processing module, a sending module, and a receiving module. The aggregated CMC device implements some or all of the methods of the second aspect through the above modules.

A ninth aspect provides a network device that accesses a coaxial media converter CMC device. The access CMC device includes a processor, a memory, and a network interface. The processor is coupled to the memory and network interface, for example, the processor can be coupled to the memory and network interface via a bus. The network interface is used to aggregate the coaxial media converter CMC device connection, and the convergence coaxial media converter CMC device transmits and receives the message involved in the above method. The memory is used to store the first service data. The processor is configured to perform some or all of the processes of the third aspect.

In a tenth aspect, another network device is provided, the network device being a CMC device connected to a coaxial media converter. The access CMC device includes a processing module, a sending module, and a receiving module. Accessing the CMC device implements some or all of the methods of the third aspect through the above modules.

The eleventh aspect provides a network device that is connected to a coaxial media converter CMC device. The access CMC device includes a processor, a memory, and a network interface. The processor is coupled to the memory and network interface, for example, the processor can be coupled to the memory and network interface via a bus. The network interface is used to aggregate the coaxial media converter CMC device connection, and the convergence coaxial media converter CMC device transmits and receives the message involved in the above method. The memory is used to store the second service data. At The processor is used to perform some or all of the processes of the fourth aspect.

According to a twelfth aspect, there is provided another network device, the network device being a CMC device for accessing a coaxial media converter. The access CMC device includes a processing module, a sending module, and a receiving module. Accessing the CMC device implements some or all of the methods of the fourth aspect through the above modules.

A thirteenth aspect provides a network system, comprising: a convergence CMC device and at least one access CMC device, wherein the aggregation CMC device is respectively connected to the at least one access CMC device by a relay amplifier, the convergence The CMC device is used to implement some or all of the processes of the foregoing first aspect and the second aspect, and the access CMC device is configured to implement part or all of the processes of the foregoing third and fourth aspects.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying for creative labor.

1 is a schematic structural diagram of a data transmission network according to a prior art solution provided by an embodiment of the present invention;

2 is a schematic structural diagram of a data transmission network according to an embodiment of the present invention;

3 is a schematic diagram of an interaction process of a data transmission method according to an embodiment of the present invention;

4a is a schematic diagram of networking based on a data transmission method according to an embodiment of the present invention;

FIG. 4b is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention; FIG.

4c is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention; FIG.

4e is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention; FIG.

FIG. 5b is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present disclosure;

FIG. 5c is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention;

FIG. 5 e is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present disclosure;

6 is a schematic diagram of an interaction process of another data transmission method according to an embodiment of the present invention;

7 is a schematic structural diagram of a CMC device for a converged coaxial media converter according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another CMC device for a converged coaxial media converter according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of another CMC device for a converged coaxial media converter according to an embodiment of the present invention; FIG.

FIG. 10 is a schematic structural diagram of another CMC device for a converged coaxial media converter according to an embodiment of the present invention; FIG.

11 is a schematic structural diagram of a device for accessing a coaxial media converter CMC according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of another CMC device for accessing a coaxial media converter according to an embodiment of the present invention.

FIG. 13 is a schematic structural diagram of another CMC device for accessing a coaxial media converter according to an embodiment of the present invention; FIG.

FIG. 14 is a schematic structural diagram of another CMC device for accessing a coaxial media converter according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

2 is a schematic structural diagram of a data transmission network according to an embodiment of the present invention, wherein a convergence device 101 can be connected to at least one aggregation CMC device and transmit data (the aggregation CMC devices 201, 202 and FIG. 2 are shown in FIG. 203) A converged CMC device can in turn be connected to at least one access CMC device and transmit data (the CMC devices 301, 302 and 303 are shown in Figure 2). The branch network (the branch networks 401, 402, and 403 are shown in FIG. 2) includes a certain number of network users, that is, the access CMC devices can respectively be associated with the branch network. The data is transmitted and transmitted between the network devices of the network users in the respective branch networks, so that the service data in the core network is transmitted to the user after being aggregated, aggregated, and accessed by the CMC device, or The service data uploaded by the user is transmitted to the core network through the access CMC device, the aggregation CMC device, and the aggregation device.

The method in this embodiment is applicable to an access network based on a hybrid fiber-optic coaxial cable network (HFC, Hybrid Fiber-Coaxial), and between the CMC device and the CMC device, and between the CMC device and the branch network. TV cable cable connection. In the network architecture diagram shown in FIG. 2, the aggregation device 101 can transmit the service data to the aggregation CMC device 201, and the aggregation CMC device 201 modulates the service data to obtain a radio frequency signal, and the radio frequency signal carries the radio frequency signal through a predefined transmission spectrum. The radio frequency signal is transmitted to the CMC device 301, and the access CMC device 301 demodulates the radio frequency signal to obtain service data, and then transmits the data to the network device of each network user in the branch network 401.

Referring to FIG. 3, FIG. 3 is a schematic diagram of an interaction process of a data transmission method according to an embodiment of the present invention. The method may be applied to any downlink data transmission based on the network structure shown in FIG. 2, and for each network architecture. The flow of the aggregation device, the aggregation CMC device, or the access CMC device in the downlink data transmission is basically the same. Therefore, in the embodiment of the present invention, only one branch aggregation device, the aggregation CMC device, and the access CMC device are taken as an example. The data transmission method is described.

The data transmission method includes:

Step S101: The aggregation device sends the first service data to the aggregation CMC device.

The first service data is a video service or a data service transmitted to a network device of each user according to a request or a request of each user of the branch network. Generally, after receiving the first service data from the core network, the aggregation device may determine, according to the route pointed by the first service data, the convergence CMC device that receives the first service data, and send the first to the determined convergence CMC. A business data.

Step S102: The convergence CMC device modulates the first service data into the first radio frequency signal.

After receiving the first service data, the aggregation CMC device may modulate the first service data into a first radio frequency signal carried by a channel of the predefined transmission spectrum. In this embodiment, in advance The defined transmission spectrum is an extended transmission spectrum based on the existing transmission spectrum. For example, the existing transmission spectrum is generally 860 MHz, and the maximum supported 1 GHz, and the spectrum width of the predefined transmission spectrum in the embodiment of the present invention may be Supports the spectral width of 1.2 GHz and above, for example, 1.2 GHz, 1.8 GHz, or even 3 GHz. That is, the first radio frequency signal can be carried by the defined channel in the extended transmission spectrum.

For example, if the spectrum width of the predefined transmission spectrum is 1.2 GHz, wherein the spectrum of the 258 MHz-1.2 GHz portion is defined as a transmission channel of multiple downlink service data, then when the convergence CMC device modulates the first service data, the A service data is modulated into a first radio frequency signal, and the first radio frequency signal can be modulated onto a transmission channel of an idle downlink service data of 258 MHz to 1.2 GHz.

When the first service data is modulated into the first radio frequency signal, 64QAM or 256QAM modulation is generally used. In an optional scenario in the embodiment of the present invention, the convergence CMC device can support a higher level of QAM modulation, such as 16KQAM. modulation. That is to say, the first radio frequency signal can carry more data bits, that is, the transmission spectrum can also carry more data bits per HZ.

Step S103: The aggregation CMC device sends a first radio frequency signal to the access CMC device.

After the aggregation CMC device modulates the first service data into the first RF signal, it can be sent to the access CMC device, that is, the first RF signal is transmitted by the channel of the predefined transmission spectrum to the access CMC device.

Step S104: The access CMC device demodulates the first radio frequency signal to obtain the first service data.

The access CMC device demodulates the received first radio frequency signal, so that the original first service data can be obtained. It should be noted that the demodulation method here is symmetric with the modulation method in step S102, that is, if the step S102 is based on the modulation of the spectrum width of the transmission spectrum of 1.2 GHz, the demodulation is also based on the transmission. The spectrum is demodulated; if the step S102 is the modulation of 16KQAM, the demodulation method corresponding to 16KQAM is also used for demodulation.

Step S105: The access CMC device determines a target channel corresponding to the first service data according to a predefined service bearer spectrum of the at least one branch network.

The access CMC device is connected to the network device of each user of the at least one branch network, and the protocol of the service bearer spectrum defined between each user's network device and the access CMC device when transmitting data may be different, for example, The first user's network device is connected to the access CMC device The meaning may be a transmission spectrum of 1.2 GHz, and the transmission spectrum defined by the second user's network device and the access CMC device may be 860 Hz. The channel defined by different service data in each transmission spectrum is also different. For example, the spectrum of 87MHZ-860MHZ part of the transmission spectrum of 860MHZ can define multiple transmission channels of downlink service data, and the transmission spectrum of 1.2GHZ The spectrum of the 258MHZ-1.2GHZ part can define a transmission channel of multiple downlink service data. Therefore, accessing the CMC device requires determining a target channel corresponding to the first service data according to a predefined service bearer spectrum of the at least one branch network.

It should be noted that if the transmission spectrum of the branch network is still based on the existing transmission spectrum, the network transformation based on this architecture only needs to replace the trunk amplifier for the trunk cable cable, and the trunk amplifier of the branch network does not need to be replaced, which can save The cost of network transformation and the difficulty of retrofitting.

Step S106, the access CMC device modulates the first service data into a second radio frequency signal carried by the target channel.

After determining the target channel, the access CMC device can modulate the first service data into a second RF signal, which can be modulated onto the previously determined target channel.

Step S107, the access CMC device sends a second radio frequency signal to each branch network device.

After the access to the CMC device modulates the first service data into the second radio frequency signal, the second radio frequency signal is transmitted to the branch network device by the channel of the service bearer spectrum pre-defined by each branch network.

In the embodiment of the present invention, the aggregation CMC device modulates the first service data into the first radio frequency signal, and transmits the first radio frequency signal to the access through a channel defined by the extended transmission spectrum with respect to the existing transmission spectrum. The CMC device accesses the CMC device to demodulate the first radio frequency signal to obtain the first service data and transmit the data to the at least one branch network, that is, by extending the transmission spectrum, the service data of the convergence CMC device transmitted to the CMC device can be transmitted. Significantly increased to increase network bandwidth. In addition, each aggregated CMC device carries a large number of users, and joining the access to the CMC device is equivalent to splitting the node of the original data transmission network, so that the number of users carried by each access CMC device is reduced. When the transmission spectrum range of the access CMC device is unchanged, the bandwidth allocated by each user will increase.

The data transmission method for the downlink transmission described in the above embodiments may be implemented by the architectures of the ten networkings of FIG. 4a to FIG. 4e and FIGS. 5a to 5e.

Referring to FIG. 4a, FIG. 4a is a schematic diagram of networking based on a data transmission method according to an embodiment of the present invention. In the networking solution, the aggregation device 410a includes a DOCSIS media access control MAC module 411a, an Ethernet MAC module 412a, and an Ethernet physical layer module 413a. The convergence CMC device 420a includes an Ethernet MAC module 421a, an Ethernet physical layer module 422a, and a DOCSIS 3.1 physical layer module. 423a, the access CMC device 430a includes a DOCSIS MAC module 431a, a DOCSIS 3.1 physical layer module 432a, an EQAM MAC module 433a, and an SC-QAM physical layer module 434a.

In a specific implementation process, the convergence device 410a performs MAC layer processing on the first service data by using the DOCSIS MAC module 411a, that is, adding the second DOCSIS control information to the first service data, where the second DOCSIS control information is used to control the first The service data is transmitted based on the DOCSIS standard between the convergence device 410a and the access CMC device 430a, and then the first service data is modulated by the Ethernet MAC module 412a and the Ethernet physical layer module 413a to carry the second DOCSIS control information. The first service data may be transmitted to the aggregation CMC device 420a based on the Ethernet connection.

After receiving the first service data carrying the second DOCSIS control information, the aggregation CMC device 420a may first transmit the modulated first service data by using the Ethernet MAC module 421a and the Ethernet physical layer module 422a. Demodulation is performed to obtain first service data, and then the first service data is modulated into a first radio frequency signal by a DOCSIS 3.1 physical layer module 423a, the first radio frequency signal being carried by a channel of a transmission spectrum predefined by the DOCSIS 3.1 protocol. Thus, the convergence CMC device 420a can transmit the first radio frequency signal carrying the second DOCSIS control information to the access CMC device 430a through the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol.

After the access CMC device 430a receives the first radio frequency signal carrying the second DOCSIS control information, the DOCSIS MAC module 431a can remove the second DOCSIS control information carried by the first radio frequency signal, and then pass the DOCSIS 3.1 physical layer module 432a to the first The radio frequency signal is demodulated to obtain first service data. Generally, the type of the first service data may include a data service and a video service. For different types of the first service data, the processing of the MAC layer of the first service data is also different. Therefore, the access CMC device 430a is acquiring. After the first business data, you can root Determining the first target control information carried by the second radio frequency information according to the type of the first service data, and then determining the target channel corresponding to the first service data according to the pre-defined service bearer spectrum of the at least one branch network, and then the first service The data is modulated into a second radio frequency signal carried by the target channel and carrying the first target control information, and transmitted to each branch network.

Here, when the type of the first service data is a data service, the first service data may be subjected to MAC layer processing by using the DOCSIS MAC module 431a, that is, the first DOCSIS control information is added to the first service data as the first target control information, The first DOCSIS control information is used to control the DOCSIS standard-based data transmission between the access CMC device 430a and the branch network device of the second radio frequency signal; when the type of the first service data is a video service, the EQAM MAC module 433a may be used. The first service data is processed by the MAC layer, and the EQAM MAC module 433a includes the MAC function of the broadcast, SDV (Switch Digital Video) and VoD (Video On Demand), and adds the first data to the first service data. The EQAM control information is used as the first target control information, and the first EQAM control information is used to control the data transmission of the second radio frequency signal based on the EQAM standard between the access CMC device 430a and the branch network device.

It should be noted that, because the transmission protocols defined by the branch networks connected to the access CMC device 430a are different, the predefined service bearer spectrum of at least one branch network is also different. Therefore, when the first service data is modulated into the second radio frequency signal, the target channel corresponding to the first service data may be determined according to the pre-defined service bearer spectrum of the at least one branch network. In a specific implementation, for a branch network supporting the DOCSIS 3.1 protocol, the first service data can be modulated into a second radio frequency signal carried by the target channel by the DOCSIS 3.1 physical layer module 432a; the branch supporting the EQAM and DOCSIS 3.0 and previous versions of the protocol The network may modulate the first service data into a second radio frequency signal carried by the target channel by using the SC-QAM physical layer module 434a.

In the networking architecture shown in FIG. 4a, the convergence device 410a and the aggregation CMC device 420a adopt a protocol defined by the R-PHY standard and are managed by the R-PHY mode. The access CMC device 430a can be managed independently or by the aggregation device 410a.

Referring to FIG. 4b, FIG. 4b is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention. In the networking solution, the convergence device 410b includes a DOCSIS MAC module 411b, an EQAM MAC module 412b, an Ethernet MAC module 413b, and an Ethernet physical layer module 414b. The poly CMC device 420b includes an Ethernet MAC module 421b, an Ethernet physical layer module 422b, and a DOCSIS 3.1 physical layer module 423b. The access CMC device 430b includes a DOCSIS MAC module 431b, a DOCSIS 3.1 physical layer module 432b, and an SC-QAM physical layer module 433b.

In a specific implementation process, after the first service data is obtained, the convergence device 410b may determine, according to the type of the first service data, the first target control information carried by the first service data, Here, when the type of the first service data is a data service, the first service data may be subjected to MAC layer processing by using the DOCSIS MAC module 411b, that is, the first DOCSIS control information is added to the first service data as the first target control information, A DOCSIS control information is used to control the DOCSIS standard-based data transmission between the aggregation device 410b and the branch network device of the first service data; when the type of the first service data is a video service, the first service may be performed by the EQAM MAC module 412b. The data is subjected to MAC layer processing, and the EQAM MAC module 412b includes broadcast, SDV and VoD MAC functions, and adds first EQAM control information as first target control information for the first service data, and the first EQAM control information is used to control the first A service data is transmitted between the aggregation device 410b and the branch network device based on the EQAM standard. The aggregation device 410b then modulates the first service data by using the Ethernet MAC module 413b and the Ethernet physical layer module 414b, so that the first service data carrying the first target control information can be transmitted to the convergence CMC device 420b based on the Ethernet connection.

After receiving the first service data carrying the first target control information, the convergence CMC device 420b may first transmit the modulated first service data by using the Ethernet MAC module 421b and the Ethernet physical layer module 422b. Demodulation is performed to obtain the first service data, and then the first service data is modulated into a first radio frequency signal by the DOCSIS 3.1 physical layer module 423b, and the first radio frequency signal is carried by a channel of a transmission spectrum predefined by the DOCSIS 3.1 protocol. Thus, the convergence CMC device 420b can transmit the first radio frequency signal carrying the first target control information to the access CMC device 430b through the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol.

After the access CMC device 430a receives the first radio frequency signal carrying the first target control information, the first radio frequency signal may be demodulated by the DOCSIS 3.1 physical layer module 432b to obtain the first service data carrying the first target control information. Then, according to the predefined service bearer spectrum of the at least one branch network, the target channel corresponding to the first service data is determined, and then the first service data is modulated. The second radio frequency signal carrying the first target control information carried by the target channel is transmitted to each branch network.

It should be noted that, since the transmission protocols defined by the branch networks connected to the access CMC device are different, when the first service data is modulated into the second radio frequency signal, the branch network supporting the DOCSIS 3.1 protocol can pass the DOCSIS 3.1. The physical layer module 432b modulates the first service data into the second radio frequency signal; for the branch network supporting the EQAM and DOCSIS 3.0 and the previous version protocols, the first service data can be modulated into the second radio frequency signal by the SC-QAM physical layer module 433b. .

In the networking architecture shown in FIG. 4b, the convergence device 410b and the aggregation CMC device 420b adopt a protocol defined by the R-PHY standard and are managed by the R-PHY mode. The aggregation device 410b and the access CMC device 430b are managed by the R-PHY mode.

Referring to FIG. 4c, FIG. 4c is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention. In the networking solution, the aggregation device 410c includes a DOCSIS MAC module 411c, an EQAM MAC module 412c, an Ethernet MAC module 413c, and an Ethernet physical layer module 414c. The convergence CMC device 420c includes an Ethernet MAC module 421c, an Ethernet physical layer module 422c, and a DOCSIS 3.1. The physical layer module 423c and the DOCSIS MAC module 424c, the access CMC device 430c includes a DOCSIS MAC module 431c, a DOCSIS 3.1 physical layer module 432c, and an SC-QAM physical layer module 433c.

In a specific implementation process, after the first service data is acquired, the convergence device 410c may determine, according to the type of the first service data, the first target control information carried by the first service data, Here, when the type of the first service data is a data service, the first service data may be subjected to MAC layer processing by using the DOCSIS MAC module 411c, that is, the first DOCSIS control information is added to the first service data as the first target control information, The first DOCSIS control information is used to control the data transmission of the first service data between the aggregation device 410c and the branch network device based on the DOCSIS standard; when the type of the first service data is a video service, the first may be performed by the EQAM MAC module 412c. The service data performs MAC layer processing, and the EQAM MAC module 412c includes broadcast, SDV and VoD MAC functions, and adds first EQAM control information as first target control information for the first service data, and the first EQAM control information is used to control the First industry The data is transmitted between the aggregation device 410c and the branch network device based on the EQAM standard. The aggregation device 410c then modulates the first service data by using the Ethernet MAC module 413c and the Ethernet physical layer module 414c, so that the first service data carrying the first target control information can be transmitted to the convergence CMC device 420c based on the Ethernet connection.

After receiving the first service data carrying the first target control information, the aggregation CMC device 420c may first transmit the modulated first service data by using the Ethernet MAC module 421c and the Ethernet physical layer module 422c. Demodulation is performed to obtain first service data. Then, the first service data is subjected to MAC layer processing by the DOCSIS MAC module 424c, that is, the first DOCSIS control information is added to the first service data, and the second DOCSIS control information is used to control the first radio frequency signal in the convergence CMC device 420c and the access. The data transmission based on the DOCSIS standard between the CMC devices 430c is modulated by the DOCSIS 3.1 physical layer module 423c into a first radio frequency signal, which is carried by a channel of a transmission spectrum predefined by the DOCSIS 3.1 protocol. Thus, the convergence CMC device 420c can transmit the first radio frequency signal carrying the first target control information and the second DOCSIS control information to the access CMC device 430c through the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol.

After receiving the first radio frequency signal carrying the first target control information and the second DOCSIS control information, the access CMC device 430c may first remove the second DOCSIS control information carried by the first radio frequency signal through the DOCSIS MAC module 431c, and then pass the DOCSIS 3.1. The physical layer module 432c demodulates the first radio frequency signal to obtain first service data carrying the first target control information. Then, the target channel corresponding to the first service data is determined according to the predefined service bearer spectrum of the at least one branch network, and then the first service data is modulated into the second radio frequency signal carried by the target channel and carrying the first target control information. Give each branch network.

It should be noted that, since the transmission protocols defined by the branch networks connected to the access CMC device are different, when the first service data is modulated into the second radio frequency signal, the branch network supporting the DOCSIS 3.1 protocol can pass the DOCSIS 3.1. The physical layer module 432c modulates the first service data into the second radio frequency signal; for the branch network supporting the EQAM and DOCSIS 3.0 and the previous version protocols, the first service data can be modulated into the second radio frequency signal by the SC-QAM physical layer module 433c. .

In the networking architecture shown in FIG. 4c, the aggregation CMC device 420c can be independently managed. It can also be managed by the aggregation device 410c. The aggregation device 410c and the access CMC device 430c are managed in an R-PHY manner.

Referring to FIG. 4d, FIG. 4d is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention. In the networking solution, the aggregation device 410d includes an Ethernet MAC module 411d and an Ethernet physical layer module 412d. The convergence CMC device 420d includes an Ethernet MAC module 421d, an Ethernet physical layer module 422d, a DOCSIS 3.1 physical layer module 423d, and a DOCSIS MAC module 424d. The incoming CMC device 430d includes a DOCSIS MAC module 431d, a DOCSIS 3.1 physical layer module 432d, an EQAM MAC module 433d, and an SC-QAM physical layer module 434d.

In a specific implementation process, the convergence device 410d modulates the first service data by using the Ethernet MAC module 411d and the Ethernet physical layer module 412d, so that the first service data can be transmitted to the convergence CMC device 420d based on the Ethernet connection.

After receiving the first service data that is transmitted by the aggregation device 410d based on the Ethernet connection mode, the convergence CMC device 420d may first demodulate the modulated first service data by using the Ethernet MAC module 421d and the Ethernet physical layer module 422d to obtain the first A business data. Then, the first service data is subjected to MAC layer processing by the DOCSIS MAC module 424d, that is, the first DOCSIS control information is added to the first service data, and the second DOCSIS control information is used to control the first radio frequency signal in the convergence CMC device 420d and the access. The data transmission based on the DOCSIS standard between the CMC devices 430d is modulated by the DOCSIS 3.1 physical layer module 423d into a first radio frequency signal, which is carried by a channel of a transmission spectrum predefined by the DOCSIS 3.1 protocol. Thus, the convergence CMC device 420d can transmit the first radio frequency signal carrying the second DOCSIS control information to the access CMC device 430d through the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol.

After the access CMC device 430d receives the first radio frequency signal carrying the second DOCSIS control information, the DOCSIS MAC module 431d can remove the second DOCSIS control information carried by the first radio frequency signal, and then pass the DOCSIS 3.1 physical layer module 432d to the first The radio frequency signal is demodulated to obtain first service data. After the first service data is obtained, the target traffic channel corresponding to the first service data is determined according to the predefined service bearer spectrum of the at least one branch network, and then the first service data is modulated into the first target carried by the target channel. Second control information The RF signal is transmitted to each branch network.

Here, when the type of the first service data is a data service, the first service data may be subjected to MAC layer processing by using the DOCSIS MAC module 431d, that is, the first DOCSIS control information is added to the first service data as the first target control information, The first DOCSIS control information is used to control the DOCSIS standard-based data transmission between the access CMC device 430d and the branch network device of the second radio frequency signal; when the type of the first service data is a video service, the EQAM MAC module 433d may be used. The first service data is processed by the MAC layer, and the first EQAM control information is added to the first service data as the first target control information, and the first EQAM control information is used to control the second radio frequency signal to access the CMC device 430d and the branch network device. Data transfer between EQAM based standards.

It should be noted that, because the transmission protocols defined by each branch network connected to the CMC device are different, the predefined service bearer spectrum of at least one branch network is also different. Therefore, when the first service data is modulated into the second radio frequency signal, the target channel corresponding to the first service data may be determined according to the pre-defined service bearer spectrum of the at least one branch network. In a specific implementation, for a branch network supporting the DOCSIS 3.1 protocol, the first service data can be modulated into a second radio frequency signal carried by the target channel by the DOCSIS 3.1 physical layer module 432d; the branch supporting the EQAM and DOCSIS 3.0 and previous versions of the protocol The network may modulate the first service data into a second radio frequency signal carried by the target channel by using the SC-QAM physical layer module 434d.

In the networking architecture shown in FIG. 4d, the aggregation CMC device 420d and the access CMC device 430d may be managed independently or by the aggregation device 410d.

Referring to FIG. 4e, FIG. 4e is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention. In the networking solution, the aggregation device 410e includes an EQAM MAC module 411e, an Ethernet MAC module 412e, and an Ethernet physical layer module 413e. The convergence CMC device 420e includes an Ethernet MAC module 421e, an Ethernet physical layer module 422e, a DOCSIS 3.1 physical layer module 423e, and a DOCSIS. The MAC module 424e, the access CMC device 430e includes a DOCSIS MAC module 431e, a DOCSIS 3.1 physical layer module 432e, and an SC-QAM physical layer module 433e.

In a specific implementation process, after the first service data is acquired, the convergence device 410e may determine the first service data according to the type of the first service data. And carrying the first EQAM control information, where the first EQAM control information is used to control the data transmission of the first service data between the convergence device 410e and the branch network device based on the EQAM standard, specifically, when the type of the first service data is video During the service, the first service data may be processed by the EQAM MAC module 411e, and the first EQAM control information is added to the first service data, and then the convergence device 410e is first through the Ethernet MAC module 412e and the Ethernet physical layer module 413e. The service data is modulated such that the first service data carrying the first EQAM control information can be transmitted to the convergence CMC device 420e based on the Ethernet connection. When the type of the first service data is a data service, the aggregation device 410e can directly modulate the first service data by using the Ethernet MAC module 412e and the Ethernet physical layer module 413e, so that the first service data can be transmitted to the aggregation based on the Ethernet connection mode. CMC device 420e.

After receiving the first service data that is transmitted by the aggregation device 410e based on the Ethernet connection mode or the first service data that carries the first EQAM control information, the convergence CMC device 420e may first modulate the Ethernet MAC module 421e and the Ethernet physical layer module 422e. The first service data is demodulated to obtain the first service data. Then, the first service data is subjected to MAC layer processing by the DOCSIS MAC module 424e, that is, the first DOCSIS control information is added to the first service data, and the second DOCSIS control information is used to control the first radio frequency signal in the convergence CMC device 420e and the access. The data transmission based on the DOCSIS standard between the CMC devices 430e is modulated by the DOCSIS 3.1 physical layer module 423e into a first radio frequency signal, which is carried by a channel of a transmission spectrum predefined by the DOCSIS 3.1 protocol. Therefore, the convergence CMC device 420e may transmit the first radio frequency signal carrying the second DOCSIS control information or the first radio frequency signal carrying the second DOCSIS control information and the first EQAM control information to the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol. The CMC device 430e is accessed.

In a possible scenario, after receiving the first radio frequency signal carrying the second DOCSIS control information, the access CMC device 430e may remove the second DOCSIS control information carried by the first radio frequency signal through the DOCSIS MAC module 431e, and pass the The DOCSIS 3.1 physical layer module 432e demodulates the first radio frequency signal to obtain first service data. After the first service data is obtained, the first service data may be subjected to MAC layer processing by using the DOCSIS MAC module 431e, that is, the first DOCSIS control information is added to the first service data, and the first DOCSIS control information is used to control the second radio frequency. Signal access between the CMC device 430e and the branch network device based on the DOCSIS standard The data is transmitted, and then the first service data is modulated into a second radio frequency signal carrying the first DOCSIS control information and transmitted to each branch network.

In another possible scenario, the access CMC device 430e may remove the first radio frequency signal carried by the DOCSIS MAC module 431e after receiving the first radio frequency signal carrying the second DOCSIS control information and the first EQAM control information. The second DOCSIS control information is used to demodulate the first radio frequency signal by the DOCSIS 3.1 physical layer module 432e to obtain the first service data carrying the first EQAM control information, and then modulate the first service data into the first EQAM control information. The second radio frequency signal is transmitted to each branch network.

It should be noted that, because the transmission protocols defined by each branch network connected to the CMC device are different, the predefined service bearer spectrum of at least one branch network is also different. Therefore, when the first service data is modulated into the second radio frequency signal, the target channel corresponding to the first service data may be determined according to the pre-defined service bearer spectrum of the at least one branch network. In a specific implementation, for a branch network supporting the DOCSIS 3.1 protocol, the first service data can be modulated into a second radio frequency signal carried by the target channel by the DOCSIS 3.1 physical layer module 432e; the branch supporting the EQAM and DOCSIS 3.0 and previous versions of the protocol The network may modulate the first service data into a second radio frequency signal carried by the target channel by using the SC-QAM physical layer module 433e.

In the networking architecture shown in FIG. 4e, the aggregation CMC device 420e and the access CMC device 430e may be managed independently or by the aggregation device 410e.

FIG. 5a to FIG. 5e are schematic diagrams of another five types of data transmission methods, which are similar to the architectures of FIG. 4a to FIG. 4e respectively, except that the aggregation device in the networking diagram of FIG. 4a to FIG. 4e is used. The Ethernet MAC module and the Ethernet physical layer module included in the (410a-410e) and the aggregation CMC devices (420a-420e) are replaced by a passive optical network PON MAC module and a PON physical layer module. That is, in FIG. 4a to FIG. 4e, an Ethernet connection is used between the aggregation device and the aggregation CMC device, and the second service data needs to be modulated and demodulated based on the Ethernet connection mode, and in FIG. 5a to FIG. 5e, the aggregation device is used. A PON connection is used between the CMC devices and the second service data, and modulation and demodulation based on the PON connection mode are required.

Referring to FIG. 6, FIG. 6 is an interaction flow of another data transmission method according to an embodiment of the present invention. Schematic diagram. The method can be applied to any uplink data transmission based on the network structure shown in FIG. 2, and the flow of each aggregation device, aggregation CMC device or access CMC device for the network architecture is basically the same in the uplink data transmission. Therefore, in the embodiment of the present invention, the data transmission method is described by taking only one branch aggregation device, aggregation CMC device, and access CMC device as an example.

The data transmission method includes:

Step S601, the branch network device sends a fourth radio frequency signal modulated into the second service data to the access CMC device.

When the user of the branch network needs to upload data, the second service data that needs to be uploaded may be modulated into a fourth radio frequency signal and transmitted to the connected access CMC device through its own network device. Specifically, the protocol for the service bearer spectrum defined when each branch network device and the access CMC device is transmitting data may be different, for example, the definition between the first user's network device and the access CMC device. It may be a transmission spectrum of 1.2 GHz, and a transmission spectrum defined by the second user's network device and the access CMC device may be 860 Hz. The channel defined by different service data in each transmission spectrum is also different. For example, the spectrum of 5MHZ-65MHZ part of the transmission spectrum of 860MHZ can define the transmission channel of multiple uplink service data, and the transmission spectrum of 1.2GHZ The spectrum of the 5MHZ-204GHZ part can define a transmission channel of multiple uplink service data. Therefore, the network device on the branch network needs to determine the target channel corresponding to the second service data according to the pre-defined service bearer spectrum of the branch network. Then, the branch network device can transmit the fourth radio frequency signal carried by the determined target channel to the access CMC device.

Step S602, the access CMC device demodulates the fourth radio frequency signal to obtain the second service data.

The access CMC device demodulates the received fourth radio frequency signal, so that the original second service data can be obtained. It should be noted that the demodulation method here is symmetric with the modulation method in step S601, that is, if the step S601 is based on the modulation of the spectrum width of the transmission spectrum of 1.2 GHz, the demodulation is also based on the transmission. The spectrum is demodulated.

Step S603, accessing the third radio frequency signal modulated by the CMC device into the second service data.

After the access to the CMC device demodulates the second service data, the second service data may be modulated into a third radio frequency signal carried by the channel of the predefined transmission spectrum. Similar to the previous embodiment, in this embodiment, the predefined transmission spectrum is based on the existing transmission spectrum. The extended transmission spectrum, for example, the existing transmission spectrum is generally 860 MHz, and the maximum support is 1 GHz. In the embodiment of the present invention, the spectrum width of the predefined transmission spectrum can support a spectrum width of 1.2 GHz and above, for example, 1.2 GHz, 1.8GHZ or even 3GHZ and so on. That is, the third radio frequency signal can be carried by the defined channel in the extended transmission spectrum.

For example, if the spectrum width of the predefined transmission spectrum is 1.2 GHz, wherein the spectrum of the 5 MHz-204 MHz portion is defined as a transmission channel of multiple uplink service data, then when the access CMC device modulates the second service data, the The second service data is modulated into a third radio frequency signal, and the third radio frequency signal can be modulated onto a transmission channel of one of the idle uplink service data of 5 MHz to 204 MHz.

When the second service data is modulated into the third radio frequency signal, 64QAM or 256QAM modulation is generally used. In an optional scenario in the embodiment of the present invention, the access CMC device can support a higher level of QAM modulation, for example, 16KQAM modulation. That is to say, the third radio frequency signal can carry more data bits, that is, the transmission spectrum can also carry more data bits per HZ.

Step S604, the access CMC device sends a third radio frequency signal to the convergence CMC device.

After the CMC device is configured to modulate the second service data into the third CRF device, the CMC device can be sent to the convergence CMC device, that is, the third RF signal is transmitted by the channel of the predefined transmission spectrum to the convergence CMC device.

Step S605, the aggregation CMC device demodulates the third radio frequency signal to obtain second service data.

The access CMC device demodulates the received first radio frequency signal, so that the original first service data can be obtained. It should be noted that the demodulation method here is symmetric with the modulation method in step S603, that is, if the step S603 is based on the modulation of the spectrum width of the transmission spectrum of 1.2 GHz, the demodulation is also based on the transmission. The spectrum is demodulated; if the step S603 is the modulation of 16KQAM, the demodulation method corresponding to 16KQAM is also used for demodulation.

Step S606: The aggregation CMC device sends the second service data to the aggregation device.

After the aggregation CMC device demodulates the second service data, the second service data can be transmitted to the aggregation device, and the aggregation device can transmit the second service data to the core network.

In the embodiment of the present invention, the access CMC device modulates the second service data into a third RF signal to be transmitted to the convergence CMC device, and the third RF signal is a pre-defined extended transmission spectrum relative to the existing transmission spectrum. Channel bearer, aggregate CMC device to demodulate the third RF signal The second service data is obtained and transmitted to the aggregation device. That is to say, by extending the transmission spectrum, the service data transmitted to the aggregation CMC device by the CMC device can be greatly improved, thereby improving the network bandwidth. In addition, each aggregated CMC device carries a large number of users, and joining the access to the CMC device is equivalent to splitting the node of the original data transmission network, so that the number of users carried by each access CMC device is reduced. When the transmission spectrum range of the access CMC device is unchanged, the bandwidth allocated by each user will increase.

The data transmission method for the uplink transmission described in the above embodiment may be implemented by the architecture of ten networkings of FIG. 4a to FIG. 4e and FIGS. 5a to 5e.

The branch network device has determined the second target control information according to the data type of the second service data, wherein the second target control information may be at least one of the third DOCSIS control information and the second EQAM control information. When the type of the second service data is a data service, the branch network device adds third DOCSIS control information as the second target control information for the second service data, and the third DOCSIS control information is used to control the fourth radio frequency signal to access the CMC. The DOCSIS standard-based data transmission between the device 430a and the branch network device; when the second service data type is a video service, the branch network device adds the second EQAM control information to the second service data as the second target control information, The second EQAM control information is used to control the data transmission of the fourth radio frequency signal based on the EQAM standard between the access CMC device 430a and the branch network device. Therefore, the fourth radio frequency signal received by the access CMC device 430a may carry at least one of the third DOCSIS control information and the second EQAM control information.

In a specific implementation process, when the access CMC device 430a receives the fourth radio frequency signal, the third DOCSIS control information and the second EQAM control information may be removed by the DOCSIS MAC module 431a and the EQAM MAC module 433a, respectively. Further, due to access to CMC The branch networks defined by the device 430a define different transport protocols, so the pre-defined service bearer spectrum of at least one branch network is also different. Therefore, when the access CMC device 430a receives the fourth radio frequency signal based on the DOCSIS 3.1 protocol, the fourth radio frequency signal can be demodulated into the second service data by the DOCSIS 3.1 physical layer module 432a; when the access CMC device 430a receives The fourth RF signal is based on EQAM and DOCSIS 3.0 and prior versions of the protocol, and the fourth RF signal can be demodulated into the second service data by the SC-QAM physical layer module 434a.

After the access CMC device 430a demodulates the second service data, the second service data is processed by the DOCSIS MAC module 431a, that is, the fourth DOCSIS control information is added to the second service data, and the fourth DOCSIS control information is used. Controlling the third radio frequency signal based on the DOCSIS standard data transmission between the convergence device 410a and the access CMC device 430a, and then modulating the second service data into the third carrying the fourth DOCSIS control information through the DOCSIS 3.1 physical layer module 432a The radio frequency signal is carried by the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol. Thus, the access CMC device 430a can transmit the third radio frequency signal carrying the fourth DOCSIS control information to the convergence CMC device 420a through the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol.

After receiving the third radio frequency signal that is sent by the CMC device 430a and carrying the fourth DOCSIS control information, the convergence CMC device 420a may perform demodulation by using the DOCSIS 3.1 physical layer module 423a to obtain the second DOCSIS control information. The service data is then modulated by the Ethernet MAC module 421a and the Ethernet physical layer module 422a to enable the second service data carrying the fourth DOCSIS control information to be transmitted to the convergence device 410a based on the Ethernet connection.

After the convergence device 410a receives the second service data carrying the fourth DOCSIS control information transmitted in the Ethernet connection manner, the fourth DOCSIS control information is removed by the DOCSIS MAC module 411a, and then passed through the Ethernet MAC module 412a and the Ethernet physical layer module 413a. The modulated second service data is demodulated to obtain second service data and transmit the second service data to the core network.

Referring to FIG. 4b, FIG. 4b is a schematic diagram of another networking based on a data transmission method according to an embodiment of the present invention. In the networking solution, the convergence device 410b includes a DOCSIS MAC module 411b, The EQAM MAC module 412b, the Ethernet MAC module 413b, and the Ethernet physical layer module 414b, the convergence CMC device 420b includes an Ethernet MAC module 421b, an Ethernet physical layer module 422b, and a DOCSIS 3.1 physical layer module 423b, and the access CMC device 430b includes a DOCSIS MAC module 431b, DOCSIS 3.1 physical layer module 432b and SC-QAM physical layer module 433b.

In a specific implementation process, the access CMC device 430b receives the fourth radio frequency signal carrying the second target control information, where the second target control information may be at least one of the third DOCSIS control information and the second EQAM control information, where The second EQAM control information is used to control the data transmission of the fourth radio frequency signal between the convergence device 410b and the branch network device based on the EQAM standard, and the third DOCSIS control information is used to control the fourth radio frequency signal between the convergence device 410b and the branch network device. Data transmission based on the DOCSIS standard. When the access CMC device 430b receives the fourth radio frequency signal based on the DOCSIS 3.1 protocol, the fourth radio frequency signal can be demodulated into the second service data by the DOCSIS 3.1 physical layer module 432b; when the access CMC device 430b receives the first The four radio frequency signals are based on the EQAM and DOCSIS 3.0 and previous versions of the protocol, and the fourth radio frequency signal can be demodulated into the second service data by the SC-QAM physical layer module 433b.

After the access CMC device 430b demodulates the second service data, the second service data is processed by the DOCSIS MAC module 431b, that is, the fourth DOCSIS control information is added to the second service data, and the fourth DOCSIS control information is used. Controlling the third radio frequency signal between the convergence device 410b and the access CMC device 430b based on the DOCSIS standard data transmission, and then modulating the second service data to carry the fourth DOCSIS control information and the second through the DOCSIS 3.1 physical layer module 432b A third radio frequency signal of the target control information, the third radio frequency signal being carried by a channel of a transmission spectrum predefined by the DOCSIS 3.1 protocol. Thus, the access CMC device 430b can transmit the third radio frequency signal carrying the fourth DOCSIS control information and the second target control information to the convergence CMC device 420b through the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol.

After receiving the third radio frequency signal that is sent by the CMC device 430b and carrying the fourth DOCSIS control information and the second target control information, the convergence CMC device 420b may demodulate the third radio frequency signal by using the DOCSIS 3.1 physical layer module 423b. Obtaining second service data carrying the fourth DOCSIS control information and the second target control information, and then modulating the second service data by using the Ethernet MAC module 421b and the Ethernet physical layer module 422b, so as to carry the fourth DOCSIS control information and the The second service data of the second target control information may be based on the Ethernet connection The mode is transmitted to the convergence device 410b.

After the convergence device 410b receives the second service data carrying the fourth DOCSIS control information and the second target control information transmitted according to the Ethernet connection mode, the fourth DOCSIS control information is removed by the DOCSIS MAC module 411b, and respectively passed through the DOCSIS MAC module 411b and The EQAMMAC module 412b correspondingly removes the third DOCSIS control information and the second EQAM control information, and then demodulates the modulated second service data by using the Ethernet MAC module 413b and the Ethernet physical layer module 414b to obtain the second service data and The second service data is transmitted to the core network.

In a specific implementation process, the access CMC device 430c receives the fourth radio frequency signal carrying the second target control information, where the second target control information may be at least one of the third DOCSIS control information and the second EQAM control information, The second EQAM control information is used to control the EQAM standard-based data transmission between the convergence device 410c and the branch network device, and the third DOCSIS control information is used to control the fourth RF signal between the convergence device 410c and the branch network device. Data transmission based on the DOCSIS standard. When the access CMC device 430c receives the fourth radio frequency signal based on the DOCSIS 3.1 protocol, the fourth radio frequency signal may be demodulated into the second service data by the DOCSIS 3.1 physical layer module 432c; when the access CMC device 430c receives the first The four radio frequency signals are based on the EQAM and DOCSIS 3.0 and previous versions of the protocol, and the fourth radio frequency signal can be demodulated into the second service data by the SC-QAM physical layer module 433c.

After the access CMC device 430c demodulates the second service data, the second service data is processed by the DOCSIS MAC module 431c, that is, the fourth DOCSIS control information is added to the second service data, and the fourth DOCSIS control information is used. Controlling the third radio frequency signal based on the DOCSIS standard data transmission between the convergence CMC device 420c and the access CMC device 430c, The second service data is then modulated by the DOCSIS 3.1 physical layer module 432c into a third radio frequency signal carrying the fourth DOCSIS control information and the second target control information, the third radio frequency signal passing through a channel defined by the DOCSIS 3.1 protocol. Hosted. Thus, the access CMC device 430c can transmit the third radio frequency signal carrying the fourth DOCSIS control information and the second target control information to the convergence CMC device 420c through the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol.

After receiving the third radio frequency signal that is sent by the CMC device 430c and carrying the fourth DOCSIS control information and the second target control information, the convergence CMC device 420c may remove the fourth DOCSIS control carried by the third radio frequency signal by using the DOCSIS MAC module 424c. And demodulating the third radio frequency signal by the DOCSIS 3.1 physical layer module 423c to obtain the second service data carrying the second target control information, and then the second service data by using the Ethernet MAC module 421c and the Ethernet physical layer module 422c. Modulation is performed such that the second service data carrying the second target control information can be transmitted to the convergence device 410c based on the Ethernet connection.

After the convergence device 410c receives the second service data carrying the second target control information that is transmitted in the Ethernet connection manner, the third DOCSIS control information and the second EQAM control information may be removed through the DOCSIS MAC module 411c and the EQAM MAC module 412c, respectively. Then, the modulated second service data is demodulated by the Ethernet MAC module 413c and the Ethernet physical layer module 414c to obtain the second service data and transmit the second service data to the core network.

In a specific implementation process, the access CMC device 430d receives the fourth radio frequency signal carrying the second target control information, where the second target control information may be at least one of the third DOCSIS control information and the second EQAM control information, The second EQAM control information is used to control the data transmission of the fourth radio frequency signal based on the EQAM standard between the access CMC device 430d and the branch network device. The third DOCSIS control information is used to control the DOCSIS standard-based data transmission between the access CMC device 430d and the branch network device. When the access CMC device 430d receives the fourth radio frequency signal carrying the second target control information, the third DOCSIS control information and the second EQAM control information may be removed by the DOCSIS MAC module 431d and the EQAM MAC module 433d, respectively. Further, when the access CMC device 430d receives the fourth radio frequency signal based on the DOCSIS 3.1 protocol, the fourth radio frequency signal may be demodulated into the second service data by the DOCSIS 3.1 physical layer module 432d; when the CMC device 430d is accessed The fourth radio frequency signal is received based on the EQAM and DOCSIS 3.0 and previous versions, and the fourth radio frequency signal can be demodulated into the second service data by the SC-QAM physical layer module 434d.

After the access CMC device 430d demodulates the second service data, the DOCSIS MAC module 431d performs MAC layer processing on the second service data, that is, the fourth DOCSIS control information is added to the second service data, and the fourth DOCSIS control information is used. Controlling the third radio frequency signal between the converged CMC device 420d and the access CMC device 430d based on the DOCSIS standard data transmission, and then modulating the second service data into the fourth DOCSIS control information by the DOCSIS 3.1 physical layer module 432d The third radio frequency signal, the fourth DOCSIS control information is used to control the DOCSIS standard-based data transmission between the converged CMC device 420d and the access CMC device 430d, the third radio frequency signal is pre-defined by the DOCSIS 3.1 protocol. The channel is carried. Thus, the access CMC device 430d can transmit the third radio frequency signal carrying the fourth DOCSIS control information to the convergence CMC device 420d through the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol.

After receiving the third radio frequency signal that is sent by the CMC device 430d and carrying the fourth DOCSIS control information, the convergence CMC device 420d may remove the fourth DOCSIS control information carried by the third radio frequency signal through the DOCSIS MAC module 424d, and pass the DOCSIS 3.1. The physical layer module 423d demodulates the third radio frequency signal to obtain the second service data, and then modulates the second service data by using the Ethernet MAC module 421d and the Ethernet physical layer module 422d, so that the second service data can be connected based on the Ethernet. The mode is transmitted to the convergence device 410d.

After the aggregation device 410d receives the second service data that is transmitted based on the Ethernet connection, the modulated second service data may be demodulated by the Ethernet MAC module 411d and the Ethernet physical layer module 412d to obtain the second service data. The second service data is transmitted to the core network.

In a specific implementation process, when the access CMC device 430e receives the fourth radio frequency signal carrying the third DOCSIS control information, the third DOCSIS control information may be removed by the DOCSIS MAC module 431e, where the third DOCSIS control information is used for control. The fourth radio frequency signal is transmitted based on the DOCSIS standard between the access CMC device 430e and the branch network device. When the access CMC device 430e receives the fourth radio frequency signal carrying the second EQAM control information, the MAC layer is not processed. The second EQAM control information is used to control the fourth radio frequency signal in the convergence device 410e and the branch network device. Data transmission based on EQAM standard. Further, when the access CMC device 430e receives the fourth radio frequency signal based on the DOCSIS 3.1 protocol, the fourth radio frequency signal may be demodulated into the second service data by the DOCSIS 3.1 physical layer module 432e; when the CMC device 430e is accessed The fourth radio frequency signal is received based on the EQAM and DOCSIS 3.0 and previous versions, and the fourth radio frequency signal can be demodulated into the second service data by the SC-QAM physical layer module 433e.

After the access CMC device 430e demodulates the second service data, the DOCSIS MAC module 431e performs MAC layer processing on the second service data, that is, the fourth DOCSIS control information is added to the second service data, and the fourth DOCSIS control information is used. Controlling the third radio frequency signal between the converged CMC device 420e and the access CMC device 430e based on the DOCSIS standard data transmission, and then modulating the second service data to the fourth DOCSIS control information by the DOCSIS 3.1 physical layer module 432e The third radio frequency signal or the third radio frequency signal carrying the fourth DOCSIS control information and the second EQAM control information, the third radio frequency signal being carried by the channel of the transmission spectrum predefined by the DOCSIS 3.1 protocol. Therefore, the access CMC device 430e may pass the third radio frequency signal carrying the fourth DOCSIS control information or the third radio frequency signal carrying the fourth DOCSIS control information and the second EQAM control information through a pre-defined transmission spectrum of the DOCSIS 3.1 protocol. The channel is transmitted to the aggregation CMC device 420e.

After receiving the third radio frequency signal that carries the fourth DOCSIS control information or the third radio frequency signal that carries the fourth DOCSIS control information and the second EQAM control information that is sent by the access CMC device 430e, the convergence CMC device 420e may pass the DOCSIS MAC module. 424e removes the fourth DOCSIS control information carried by the third radio frequency signal, and demodulates the third radio frequency signal by using the DOCSIS 3.1 physical layer module 423e to obtain the second service data or the second service data carrying the second EQAM control information. The second service data is then modulated by the Ethernet MAC module 421e and the Ethernet physical layer module 422e, so that the second service data or the second service data carrying the second EQAM control information can be transmitted to the convergence device 410e based on the Ethernet connection.

If the convergence device 410e receives the second service data transmitted based on the Ethernet connection mode, the modulated second service data may be demodulated by the Ethernet MAC module 412e and the Ethernet physical layer module 413e to obtain the second service data and the first The second service data is transmitted to the core network; if the aggregation device 410e receives the second service data that carries the second EQAM control information transmitted in the Ethernet connection mode, the second EQAM control information may be removed through the EQAM MAC module 411e, and the Ethernet MAC module is adopted. The 412e and the Ethernet physical layer module 413e demodulate the modulated second service data to obtain the second service data and transmit the second service data to the core network.

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of a CMC device for a converged coaxial media converter according to an embodiment of the present invention. As shown in FIG. 7, the device includes a processor 71, a memory 72, and a network. Network interface 73. The processor 71 is coupled to a memory 72 and a network interface 73, for example, the processor 71 can be coupled to the memory 72 and the network interface 73 via a bus.

The processor 71 is configured to support the converged coaxial media converter CMC device to perform the corresponding functions in the method of the embodiment shown in FIG. The processor 71 can be a central processing unit (CPU), a network processor (in English: network processor, NP), a hardware chip, or any combination thereof. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), and a general array logic (GAL). Or any combination thereof.

The memory 72 is used to store first service data and the like. The memory 72 may include a volatile memory (English: volatile memory), such as random-access memory (abbreviation: RAM); the memory 72 may also include non-volatile memory (English: non-volatile memory) ), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state Drive, abbreviation: SSD); the memory 72 may also include a combination of the above types of memory.

The network interface 73 is configured to connect to the aggregation device and the access CMC device, and transmit and receive the messages involved in the foregoing method with the aggregation device and the access CMC device.

The processor 71 can perform the following operations:

Receiving, by the network interface 73, the first service data sent by the aggregation device; modulating the first service data into a first radio frequency signal, where the first radio frequency signal is carried through a channel of a predefined transmission spectrum; Transmitting the first radio frequency signal into the coaxial media converter CMC device, so that the access CMC device demodulates the first radio frequency signal to obtain the first service data, and the access CMC device according to at least one After the target service channel corresponding to the first service data is determined, the first service data is modulated into a second radio frequency signal carried by the target channel and transmitted to each branch network device.

Optionally, the processor 71 receives, by using the network interface 73, the carrying second sent by the aggregation device. The first service data of the DOCSIS control information, the second DOCSIS control information is used to control data transmission of the first service data between the aggregation device and the access CMC device based on DOCSIS standards; A service data is modulated into a first radio frequency signal, the first radio frequency signal is carried over a channel of a predefined transmission spectrum; and the second DOCSIS control information is transmitted to the access CMC device via a network interface 73 a radio frequency signal, so that the access CMC device demodulates the first radio frequency signal carrying the second DOCSIS control information to obtain the first service data, where the access CMC device is configured according to the first service data. Determining the first target control information carried by the second radio frequency information and modulating the first service data into a second radio frequency signal carrying the first target control information, where the first target control information includes the first EQAM control information And at least one of the first DOCSIS control information, the first EQAM control information being used to control the second radio frequency signal at the access CMC device and the branch network Data transmission based on EQAM standard between devices, the first DOCSIS control information is used to control data transmission of the second radio frequency signal based on DOCSIS standard between the access CMC device and the branch network device.

Optionally, the processor 71 receives, by using the network interface 73, the first service data that is sent by the aggregation device and carries the first target control information, where the first target control information includes the first EQAM control information and the first DOCSIS control information. At least one of the first EQAM control information is used to control data transmission of the first service data based on an EQAM standard between the aggregation device and the branch network device, where the first DOCSIS control information is used for control Transmitting, by the first service data, a data transmission based on a DOCSIS standard between the aggregation device and the branch network device; modulating the first service data into a first radio frequency signal, where the first radio frequency signal passes a predefined Transmitting a channel of the spectrum; transmitting, by the network interface 73, the first radio frequency signal carrying the first target control information to the access CMC device.

Optionally, the processor 71 receives, by using the network interface 73, the first service data that is sent by the aggregation device and carries the first target control information, where the first target control information includes the first EQAM control information and the first DOCSIS control information. At least one of the first EQAM control information is used to control data transmission of the first service data based on an EQAM standard between the aggregation device and the branch network device, where the first DOCSIS control information is used for control The first service data is transmitted based on the DOCSIS standard between the aggregation device and the branch network device. Transmitting, the first service data carrying the first target control information into a first radio frequency signal carrying the first target control information and the second DOCSIS control information, where the second DOCSIS control information is used to control the first Transmitting a radio frequency signal based on DOCSIS standard data between the local end and the access CMC device; transmitting, by the network interface 73, the first carrying the first target control information and the second DOCSIS control information to the access CMC device Radio frequency signal, so that the access CMC device demodulates the first radio frequency signal according to the second DOCSIS control information to obtain the first service data carrying the first target control information and carries the first target The first service data of the control information is modulated into a second radio frequency signal carrying the first target control information.

Optionally, the processor 71 receives the first service data sent by the aggregation device by using the network interface 73. The first service data is modulated into a first radio frequency signal, where the first radio frequency signal is carried through a channel of a predefined transmission spectrum. Modulating the first service data into a first radio frequency signal carrying second DOCSIS control information, where the second DOCSIS control information is used to control the first radio frequency signal between the local end and the access CMC device Data transmission based on the DOCSIS standard; transmitting, by the network interface 73, the first radio frequency signal carrying the second DOCSIS control information to the access CMC device, so that the access CMC device solves according to the second DOCSIS control information And adjusting the first radio frequency signal to obtain the first service data, where the access CMC device determines, according to the type of the first service data, first target control information carried by the second radio frequency information, and the A service data is modulated into a second radio frequency signal carrying first target control information, where the first target control information includes first EQAM control information and first DOCSIS control information At least one, the first EQAM control information is used to control data transmission of the second radio frequency signal based on an EQAM standard between the access CMC device and the branch network device, where the first DOCSIS control information is used Controlling the second radio frequency signal based on DOCSIS standard data transmission between the access CMC device and the branch network device.

Optionally, the processor 71 receives, by using the network interface 73, the first service data that is transmitted by the aggregation device through an Ethernet network, or receives the first service data that is sent by the aggregation device by using a passive optical network PON.

Optionally, the processor 71 modulates the first service data into the first radio frequency signal according to a DOCSIS 3.1 standard, where the first radio frequency signal is carried by a channel of a predefined transmission spectrum.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of another CMC device for a converged coaxial media converter according to an embodiment of the present invention. As shown in FIG. 8, the device includes a processing module 100, a sending module 110, and a receiving module 120. The processing module 100 implements the functions of the processor 71 shown in FIG. 7. The sending module 110, in conjunction with the receiving module 120, implements the method shown in FIG. The functionality of network interface 73 is such that the converged coaxial media converter CMC device performs the method described in the embodiment illustrated in FIG.

Referring to FIG. 9, FIG. 9 is a schematic structural diagram of another CMC device for a converged coaxial media converter according to an embodiment of the present invention. As shown in FIG. 9, the device includes a processor 91, a memory 92, and a network interface 93. The processor 91 is coupled to a memory 92 and a network interface 93, for example, the processor 91 can be coupled to the memory 92 and the network interface 93 via a bus.

The processor 91 is configured to support the converged coaxial media converter CMC device to perform the corresponding functions in the method of the embodiment shown in FIG. The processor 91 can be a central processing unit (CPU), a network processor (in English), a hardware chip, or any combination thereof. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), and a general array logic (GAL). Or any combination thereof.

The memory 92 is used to store second service data and the like. The memory 92 may include a volatile memory (English: volatile memory), such as a random access memory (English: random-access memory, abbreviation: RAM); the memory 92 may also include a non-volatile memory (English: non-volatile memory) ), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state Drive, abbreviation: SSD); the memory 72 may also include a combination of the above types of memory.

The network interface 93 is configured to connect to the aggregation device and the access CMC device, and send and receive messages related to the foregoing method to the aggregation device and the access CMC device.

The processor 91 can perform the following operations:

Receiving, by the network interface 93, a third radio frequency signal obtained by modulating the second service data sent by the CMC device, and the third radio frequency signal is carried by a channel in a predefined transmission spectrum; The third radio frequency signal is used to obtain the second service data; the second service data is sent to the aggregation device through the network interface 93, so that the aggregation device transmits the second service data to the core network.

Optionally, the processor 91 receives, by using the network interface 93, the third radio frequency signal that is sent by the access CMC device and carries the fourth DOCSIS control information, where the fourth DOCSIS control information is used to control the third radio frequency signal. Determining a data transmission based on the DOCSIS standard between the aggregation device and the access CMC device; demodulating the third radio frequency signal to obtain second service data; and transmitting, by using the network interface 93, the fourth DOCSIS control information to the aggregation device The second service data, so that the aggregation device demodulates the second service data carrying the fourth DOCSIS control information to obtain the second service data and transmit the second service data to the core network.

Optionally, the processor 91 receives, by using the network interface 93, the third radio frequency signal that is sent by the access CMC device and carries the second target control information and the fourth DOCSIS control information, where the second target control information includes the second EQAM control. At least one of information and third DOCSIS control information for controlling data transmission of the fourth radio frequency signal based on an EQAM standard between the aggregation device and the branch network device, The third DOCSIS control information is used to control data transmission based on the DOCSIS standard between the convergence device and the branch network device, and the fourth DOCSIS control information is used to control the third radio frequency signal Data transmission based on the DOCSIS standard between the aggregation device and the access CMC device; demodulating the third radio frequency signal to obtain second service data; transmitting, by the network interface 93, the second target to the aggregation device Controlling information and second service data of the fourth DOCSIS control information to cause the aggregation device to demodulate the carrying second target control information and the fourth DOCSIS control The second service data information to obtain the second service data and service data transmitted to said second core network.

Optionally, the processor 91 receives, by using the network interface 93, the third radio frequency signal that is sent by the access CMC device and carries the second target control information and the fourth DOCSIS control information, where the second target control information includes the second EQAM control. At least one of information and third DOCSIS control information for controlling the fourth radio frequency signal at the convergence device Data transmission based on the EQAM standard between the branch network devices, where the third DOCSIS control information is used to control data transmission of the fourth radio frequency signal based on the DOCSIS standard between the aggregation device and the branch network device, The fourth DOCSIS control information is used to control data transmission of the third radio frequency signal based on DOCSIS standard between the converged CMC device and the access CMC device; demodulating the carrying second target control information and a fourth radio frequency signal of the fourth DOCSIS control information to obtain the second service data carrying the second target control information; and the second service data carrying the second target control information is sent to the aggregation device through the network interface 93, so that The aggregation device demodulates the second service data carrying the second target control information to obtain the second service data and transmit the second service data to the core network.

Optionally, the processor 91 receives, by using the network interface 93, the third radio frequency signal that is sent by the access CMC device and carries the fourth DOCSIS control information, where the fourth DOCSIS control information is used to control the third radio frequency signal. Determining a data transmission based on the DOCSIS standard between the convergence CMC device and the access CMC device; demodulating the third radio frequency signal carrying the fourth DOCSIS control information to obtain the second service data; and concentrating through the network interface 93 The device sends the second service data, so that the aggregation device transmits the second service data to the core network.

Optionally, the processor 91 sends the second service data to the aggregation device through the Ethernet network through the network interface 93; or sends the second service data to the aggregation device by using a passive optical network PON.

Optionally, the processor 91 receives, by using the network interface 93, the third radio frequency signal that is sent by the accessing CMC device to modulate the second service data according to the DOCSIS 3.1 standard, where the third radio frequency signal is predefined. The channel in the transmission spectrum is carried.

Referring to FIG. 10, FIG. 10 is a schematic structural diagram of another CMC device for a converged coaxial media converter according to an embodiment of the present invention. As shown in FIG. 10, the device includes a processing module 200, a sending module 210, and a receiving module 220. The processing module 200 implements the functions of the processor 91 shown in FIG. 9. The sending module 210 and the receiving module 220 implement the method shown in FIG. The functionality of network interface 93 is such that the converged coaxial media converter CMC device performs the method described in the embodiment illustrated in FIG.

Referring to FIG. 11, FIG. 11 is an access coaxial media converter according to an embodiment of the present invention. Schematic diagram of the structure of the CMC device. As shown in FIG. 11, the device includes a processor 111, a memory 112, and a network interface 113. The processor 111 is coupled to the memory 112 and the network interface 113, for example, the processor 111 can be coupled to the memory 112 and the network interface 113 via a bus.

The processor 111 is configured to support access to a coaxial media converter CMC device to perform the corresponding functions in the method of the embodiment shown in FIG. The processor 111 can be a central processing unit (CPU), a network processor (English: network processor, NP), a hardware chip, or any combination thereof. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), and a general array logic (GAL). Or any combination thereof.

The memory 112 is used to store first service data and the like. The memory 112 may include a volatile memory (English: volatile memory), such as a random access memory (English: random-access memory, abbreviation: RAM); the memory 112 may also include a non-volatile memory (English: non-volatile memory) ), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state Drive, abbreviation: SSD); the memory 112 may also include a combination of the above types of memory.

The network interface 113 is configured to connect with the aggregation CMC device and the branch network device, and transmit and receive the messages involved in the foregoing method with the aggregation CMC device and the branch network device.

The processor 111 can perform the following operations:

Receiving, by the network interface 113, a first radio frequency signal, which is sent by the convergence coaxial media converter CMC device and modulating the first service data, where the first radio frequency signal is carried through a channel of a predefined transmission spectrum; demodulating the first And determining, by the radio frequency signal, the first service data; determining, according to the predefined service bearer spectrum of the at least one branch network, a target channel corresponding to the first service data; and modulating the first service data into a Two radio frequency signals; the second radio frequency signals are sent to each branch network device through the network interface 113.

Optionally, the processor 111 receives, by using the network interface 113, the sent by the convergence CMC device. a first radio frequency signal carrying second DOCSIS control information, where the second DOCSIS control information is used to control data transmission of the first service data between the aggregation device and the local end based on DOCSIS standards; Decoding the first radio frequency signal to obtain the first service data; determining a target channel corresponding to the first service data according to a predefined service bearer spectrum of the at least one branch network; determining the first service The first target control information corresponding to the type of the data, the first target control information includes at least one of the first EQAM control information and the first DOCSIS control information, where the first EQAM control information is used to control the second radio frequency The signal is transmitted between the local end and the branch network device based on the EQAM standard, and the first DOCSIS control information is used to control the second radio frequency signal based on the DOCSIS standard between the local end and the branch network device. Data transmission; modulating the first service data into a second radio frequency carried by the target channel and carrying the first target control information Number; first target message carrying the control information of the second radio frequency signal through the network interface 113 to each network branch devices.

Optionally, the processor 111 receives, by using the network interface 113, the first radio frequency signal that is sent by the aggregation CMC device and carries the first target control information, where the first target control information includes the first EQAM control information and the first DOCSIS control information. And at least one of the first EQAM control information is used to control data transmission of the first service data between the aggregation device and the branch network device based on an EQAM standard, where the first DOCSIS control information is used. Controlling, by the first service data, a DOCSIS standard-based data transmission between the aggregation device and the branch network device; demodulating the first radio frequency signal to obtain first service data carrying first target control information; Determining, by the at least one branch network, a pre-defined service bearer spectrum, determining a target channel corresponding to the first service data; and modulating the first service data into a second bearer carrying the first target control information carried by the target channel Transmitting a radio frequency signal; transmitting, by the network interface 113, a second radio frequency signal carrying the first target control information to each branch network device

Optionally, the processor 111 receives, by using the network interface 113, a first radio frequency signal that is sent by the aggregation CMC device and carries the first target control information and the second DOCSIS control information, where the second DOCSIS control information is used to control the a radio frequency signal is transmitted between the converged CMC device and the local end based on DOCSIS standard data, the first target control information including at least one of first EQAM control information and first DOCSIS control information, the first EQAM Control information is used to control the first service data based on the convergence device and the branch network device Data transmission of the EQAM standard, the first DOCSIS control information is used to control data transmission of the first service data based on DOCSIS standard between the aggregation device and the branch network device; according to the second DOCSIS control information Demodulating the first radio frequency signal to obtain first service data carrying the first target control information; determining a target channel corresponding to the first service data according to a predefined service bearer spectrum of the at least one branch network; A service data is modulated into a second radio frequency signal carried by the target channel and carrying the first target control information; and a second radio frequency signal carrying the first target control information is sent to each branch network device through the network interface 113.

Optionally, the processor 111 receives, by using the network interface 113, the first radio frequency signal that is sent by the aggregation CMC device to modulate the first service data according to a DOCSIS 3.1 standard, where the first radio frequency signal passes a predefined Channel bearer in the transmission spectrum.

Referring to FIG. 12, FIG. 12 is a schematic structural diagram of another CMC device for accessing a coaxial media converter according to an embodiment of the present invention. As shown in FIG. 12, the device includes a processing module 300, a sending module 310, and a receiving module 320. The processing module 300 implements the functions of the processor 111 shown in FIG. 11. The sending module 310 combines the receiving module 320 to implement the method shown in FIG. The functionality of network interface 113 is such that the converged coaxial media converter CMC device performs the method described in the embodiment illustrated in FIG.

Referring to FIG. 13, FIG. 13 is a schematic structural diagram of another CMC device for accessing a coaxial media converter according to an embodiment of the present invention. As shown in FIG. 13, the device includes a processor 131, a memory 132, and a network interface 133. The processor 131 is coupled to the memory 132 and the network interface 133, for example, the processor 131 can be coupled to the memory 132 and the network interface 133 via a bus.

The processor 131 is configured to support access to a coaxial media converter CMC device to perform the corresponding functions in the method of the embodiment shown in FIG. The processor 131 can be a central processing unit (CPU), a network processor (NIC), a hardware chip, or any combination thereof. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The above PLD can be a complex programmable logic device (CPLD), field programmable logic Field-programmable gate array (FPGA), general array logic (GAL) or any combination thereof.

The memory 132 is used to store second service data and the like. The memory 132 may include a volatile memory (English: volatile memory), such as a random access memory (English: random-access memory, abbreviation: RAM); the memory 132 may also include a non-volatile memory (English: non-volatile memory) ), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state Drive, abbreviation: SSD); the memory 132 may also include a combination of the above types of memories.

The network interface 133 is configured to connect to the aggregation CMC device and the branch network device, and to transmit and receive the messages involved in the foregoing method with the aggregation CMC device and the branch network device.

The processor 131 can perform the following operations:

Receiving, by the network interface 133, a fourth radio frequency signal modulated by the at least one branch network device and modulating the second service data; demodulating the fourth radio frequency signal to obtain second service data; and modulating the second service data into a third radio frequency signal, the third radio frequency signal being carried by a channel in a predefined transmission spectrum; the third radio frequency signal is sent to the converged coaxial media converter CMC device through the network interface 133, so that the converged CMC device Demodulating the third radio frequency signal to obtain the second service data and transmitting the second service data to an aggregation device.

Optionally, the processor 131 receives, by using the network interface 133, fourth radio frequency information that is sent by the at least one branch network device and carries the second target control information, where the second target control information includes the third DOCSIS control information and the second EQAM control information. At least one of the second EQAM control information for controlling data transmission of the fourth radio frequency signal based on an EQAM standard between the access CMC device and the branch network device, the third DOCSIS control information a DOCSIS standard-based data transmission between the access CMC device and the branch network device for controlling the fourth radio frequency signal; demodulating the fourth radio frequency information carrying the second target control information to obtain the Second service data; modulating the second service data into a third radio frequency signal carrying fourth DOCSIS control information, the fourth DOCSIS control information being used to control the third radio frequency signal in the convergence device and the Accessing a DOCSIS-based data transmission between CMC devices; transmitting a fourth DOCSIS control message to the aggregation CMC device via the network interface 133 The third RF signal.

Optionally, the processor 131 receives, by using the network interface 133, fourth radio frequency information that is sent by the at least one branch network device and carries the second target control information, where the second target control information includes the third DOCSIS control information and the second EQAM control information. At least one of the second EQAM control information for controlling data transmission of the fourth radio frequency signal based on an EQAM standard between the access CMC device and the branch network device, the third DOCSIS control information a DOCSIS standard-based data transmission between the access CMC device and the branch network device for controlling the fourth radio frequency signal; demodulating the fourth radio frequency information carrying the second target control information to obtain the And carrying the second service data carrying the second target control information, and modulating the second service data carrying the second target control information into a third radio frequency signal carrying the second target control information and the fourth DOCSIS control information, where The fourth DOCSIS control information is used to control the data transmission of the third radio frequency signal based on the DOCSIS standard between the converged CMC device and the access CMC device ; CMC transmitted to the aggregation device via the network interface 133 to carry the third and fourth RF signals DOCSIS second target control information control information.

Optionally, the processor 131 modulates the second service data into the third radio frequency signal according to a DOCSIS 3.1 standard, where the first radio frequency signal is carried by a channel of a predefined transmission spectrum.

Referring to FIG. 14, FIG. 14 is a schematic structural diagram of another CMC device for accessing a coaxial media converter according to an embodiment of the present invention. As shown in FIG. 14, the device includes a processing module 400, a sending module 410, and a receiving module 420. The processing module 400 implements the functions of the processor 131 shown in FIG. 13. The sending module 410 is combined with the receiving module 420 to implement the method shown in FIG. The functionality of network interface 133 is such that the converged coaxial media converter CMC device performs the method described in the embodiment shown in FIG.

It should be noted that, for the foregoing various method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and there is no embodiment. For a detailed description, refer to the related description of other embodiments.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

The content downloading method and the related device and system provided by the embodiments of the present invention are described in detail above. The principles and implementation manners of the present invention are described in the specific examples. The description of the above embodiments is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for the person of ordinary skill in the art, according to the idea of the present invention, there are some changes in the specific embodiment and the scope of application. In summary, the content of the specification should not be understood. To limit the invention.

Claims

A data transmission method, comprising:

Receiving first service data sent by the aggregation device;

Modulating the first service data into a first radio frequency signal, where the first radio frequency signal is carried by a channel of a predefined transmission spectrum;

Transmitting the first radio frequency signal to the access coax media converter CMC device, so that the access CMC device demodulates the first radio frequency signal to obtain the first service data, where the access CMC device is configured according to The at least one branch network pre-defined service bearer spectrum determines the target channel corresponding to the first service data, and then modulates the first service data into a second radio frequency signal carried by the target channel to be transmitted to each branch network device.
The method of claim 1, wherein the receiving the first service data sent by the aggregation device comprises:

Receiving, by the aggregation device, first service data that carries second DOCSIS control information, where the second DOCSIS control information is used to control the first service data to be based on the aggregation device and the access CMC device. DOCSIS standard data transmission;

The transmitting the first radio frequency signal to the accessing coaxial media converter CMC device comprises:

Transmitting the first radio frequency signal carrying the second DOCSIS control information to the access CMC device, so that the access CMC device demodulates the first radio frequency signal carrying the second DOCSIS control information to obtain Determining the first service data, the access CMC device determining, according to the type of the first service data, the first target control information carried by the second radio frequency information and modulating the first service data to carry the first target control a second radio frequency signal of the information, the first target control information including at least one of first EQAM control information and first DOCSIS control information, the first EQAM control information being used to control the second radio frequency signal in the Accessing an EQAM standard-based data transmission between the CMC device and the branch network device, the first DOCSIS control information being used to control the second radio frequency signal between the access CMC device and the branch network device Data transmission based on the DOCSIS standard.
The method of claim 1, wherein the receiving the first service data sent by the aggregation device comprises:

Receiving, by the aggregation device, first service data that carries first target control information, where the first target control information includes at least one of first EQAM control information and first DOCSIS control information, the first EQAM control information And controlling, by the EQAM standard, data transmission between the aggregation device and the branch network device, where the first DOCSIS control information is used to control the first service data in the aggregation device. Data transmission based on the DOCSIS standard with the branch network device;

The transmitting the first radio frequency signal to the accessing coaxial media converter CMC device comprises:

Transmitting, by the accessing CMC device, the first radio frequency signal carrying the first target control information.
The method of claim 1, wherein the receiving the first service data sent by the aggregation device comprises:

Receiving, by the aggregation device, first service data that carries first target control information, where the first target control information includes at least one of first EQAM control information and first DOCSIS control information, the first EQAM control information And controlling, by the EQAM standard, data transmission between the aggregation device and the branch network device, where the first DOCSIS control information is used to control the first service data in the aggregation device. Data transmission based on the DOCSIS standard with the branch network device;

The modulating the first service data into the first radio frequency signal includes:

And modulating the first service data carrying the first target control information into a first radio frequency signal carrying first target control information and second DOCSIS control information, where the second DOCSIS control information is used to control the first radio frequency signal Data transmission based on DOCSIS standard between the local end and the access CMC device;

The transmitting the first radio frequency signal to the accessing coaxial media converter CMC device comprises:

Transmitting the first radio frequency signal carrying the first target control information and the second DOCSIS control information to the access CMC device, so that the access CMC device is configured according to the second DOCSIS The control information demodulates the first radio frequency signal to obtain the first service data carrying the first target control information, and modulates the first service data carrying the first target control information to carry the first target control information. Two RF signals.
The method of claim 1, wherein the modulating the first service data into the first radio frequency signal comprises:

Modulating the first service data into a first radio frequency signal carrying second DOCSIS control information, where the second DOCSIS control information is used to control the first radio frequency signal based between the local end and the access CMC device DOCSIS standard data transmission;

The transmitting the first radio frequency signal to the accessing coaxial media converter CMC device comprises:

Transmitting the first radio frequency signal carrying the second DOCSIS control information to the access CMC device, so that the access CMC device demodulates the first radio frequency signal according to the second DOCSIS control information to obtain the The first service data, the access CMC device determines first target control information carried by the second radio frequency information according to the type of the first service data, and modulates the first service data to carry first target control information. The second radio frequency signal, the first target control information includes at least one of first EQAM control information and first DOCSIS control information, where the first EQAM control information is used to control the second radio frequency signal at the Passing an EQAM standard-based data transmission between the CMC device and the branch network device, the first DOCSIS control information being used to control the second radio frequency signal based on the access CMC device and the branch network device Data transmission by the DOCSIS standard.
The method according to any one of claims 1 to 5, wherein the first service data is modulated into a first radio frequency signal, and the first radio frequency signal is carried by a channel of a predefined transmission spectrum. :

The first service data is modulated into the first radio frequency signal according to a DOCSIS 3.1 standard, and the first radio frequency signal is carried by a channel of a predefined transmission spectrum.
A data transmission method, comprising:

Receiving the first service data transmitted by the convergence coaxial media converter CMC device An RF signal, the first RF signal being carried by a channel of a predefined transmission spectrum;

Demodulating the first radio frequency signal to obtain first service data;

Determining, according to a predefined service bearer spectrum of the at least one branch network, a target channel corresponding to the first service data;

Modulating the first service data into a second radio frequency signal carried by the target channel;

Transmitting the second radio frequency signal to each branch network device.
The method of claim 7, wherein the receiving the first radio frequency signal modulated by the converged coaxial media converter CMC device and modulating the first service data comprises:

Receiving, by the aggregation CMC device, a first radio frequency signal carrying second DOCSIS control information, where the second DOCSIS control information is used to control the first service data based on a DOCSIS standard between the aggregation device and the local end data transmission;

The demodulating the first radio frequency signal to obtain the first service data includes:

Demodulating the first radio frequency signal according to the second DOCSIS control information to obtain the first service data;

The modulating the first service data into the second radio frequency signal carried by the target channel includes:

Determining first target control information corresponding to the type of the first service data, the first target control information including at least one of first EQAM control information and first DOCSIS control information, where the first EQAM control information is used Controlling, by the EQAM standard, data transmission between the local radio frequency signal and the branch network device, where the first DOCSIS control information is used to control the second radio frequency signal at the local end and the branch network device Data transfer between DOCSIS standards;

And modulating the first service data into a second radio frequency signal carried by the target channel and carrying the first target control information;

The sending the second radio frequency signal to each branch network device includes:

Sending, to each branch network device, a second radio frequency signal carrying the first target control information.
The method of claim 7 wherein said receiving converged coaxial media conversion The first radio frequency signal sent by the CMC device to modulate the first service data includes:

Receiving, by the aggregation CMC device, a first radio frequency signal carrying first target control information, where the first target control information includes at least one of first EQAM control information and first DOCSIS control information, where the first EQAM control The information is used to control data transmission of the first service data between the aggregation device and the branch network device based on an EQAM standard, where the first DOCSIS control information is used to control the first service data in the aggregation Data transmission based on the DOCSIS standard between the device and the branch network device;

The demodulating the first radio frequency signal to obtain the first service data includes:

Demodulating the first radio frequency signal to obtain first service data carrying first target control information;

The modulating the first service data into the second radio frequency signal carried by the target channel includes:

And modulating the first service data into a second radio frequency signal carried by the target channel and carrying the first target control information;

The sending the second radio frequency signal to each branch network device includes:

Sending, to each branch network device, a second radio frequency signal carrying the first target control information.
The method of claim 7, wherein the receiving the first radio frequency signal modulated by the converged coaxial media converter CMC device and modulating the first service data comprises:

Receiving, by the aggregation CMC device, a first radio frequency signal carrying first target control information and second DOCSIS control information, where the second DOCSIS control information is used to control the first radio frequency signal in the convergence CMC device and the local Data transmission based on the DOCSIS standard between the terminals, the first target control information includes at least one of first EQAM control information and first DOCSIS control information, where the first EQAM control information is used to control the first service data An EQAM-based data transmission between the aggregation device and the branch network device, the first DOCSIS control information being used to control the first service data to be based on the aggregation device and the branch network device DOCSIS standard data transmission;

The demodulating the first radio frequency signal to obtain the first service data includes:

Demodulating the first radio frequency signal according to the second DOCSIS control information to obtain first service data carrying first target control information;

The modulating the first service data into the second radio frequency signal carried by the target channel includes:

And modulating the first service data into a second radio frequency signal carried by the target channel and carrying the first target control information;

The sending the second radio frequency signal to each branch network device includes:

Sending, to each branch network device, a second radio frequency signal carrying the first target control information.
The method according to any one of claims 7 to 10, wherein the first RF signal, which is modulated by the convergence coaxial media converter CMC device, modulates the first service data into the first radio frequency signal Channel bearers through pre-defined transmission spectrum include:

Receiving, by the aggregation CMC device, the first radio frequency signal modulated by the first service data according to a DOCSIS 3.1 standard, where the first radio frequency signal is carried by a channel in a predefined transmission spectrum.
A network device, wherein the network device is a converged coaxial media converter CMC device, including:

a receiving module, configured to receive first service data sent by the aggregation device;

a processing module, configured to modulate the first service data into a first radio frequency signal, where the first radio frequency signal is carried by a channel of a predefined transmission spectrum;

a sending module, configured to send the first radio frequency signal to an access coax media converter CMC device, to enable the access CMC device to demodulate the first radio frequency signal to obtain the first service data, where The access CMC device determines the target channel corresponding to the first service data according to the predefined service bearer spectrum of the at least one branch network, and then modulates the first service data into a second radio frequency signal carried by the target channel to each Branch network device.
A network device according to claim 12, wherein

The receiving module is configured to:

Receiving, by the aggregation device, first service data that carries second DOCSIS control information, where the second DOCSIS control information is used to control the first service data in the convergence device and the Data transmission based on the DOCSIS standard between access CMC devices;

The sending module is used to:

Transmitting the first radio frequency signal carrying the second DOCSIS control information to the access CMC device, so that the access CMC device demodulates the first radio frequency signal carrying the second DOCSIS control information to obtain Determining the first service data, the access CMC device determining, according to the type of the first service data, the first target control information carried by the second radio frequency information and modulating the first service data to carry the first target control a second radio frequency signal of the information, the first target control information including at least one of first EQAM control information and first DOCSIS control information, the first EQAM control information being used to control the second radio frequency signal in the Accessing an EQAM standard-based data transmission between the CMC device and the branch network device, the first DOCSIS control information being used to control the second radio frequency signal between the access CMC device and the branch network device Data transmission based on the DOCSIS standard.
A network device according to claim 12, wherein

The receiving module is configured to:

Receiving, by the aggregation device, first service data that carries first target control information, where the first target control information includes at least one of first EQAM control information and first DOCSIS control information, the first EQAM control information And controlling, by the EQAM standard, data transmission between the aggregation device and the branch network device, where the first DOCSIS control information is used to control the first service data in the aggregation device. Data transmission based on the DOCSIS standard with the branch network device;

The sending module is used to:

Transmitting, by the accessing CMC device, the first radio frequency signal carrying the first target control information.
A network device according to claim 12, wherein

The receiving module is configured to:

Receiving, by the aggregation device, first service data that carries the first target control information, where the first target control information includes the first EQAM control information and the first DOCSIS control information One less, the first EQAM control information is used to control data transmission of the first service data between the aggregation device and the branch network device based on an EQAM standard, and the first DOCSIS control information is used to control the The first service data is transmitted between the aggregation device and the branch network device based on a DOCSIS standard;

The processing module is used to:

And modulating the first service data carrying the first target control information into a first radio frequency signal carrying first target control information and second DOCSIS control information, where the second DOCSIS control information is used to control the first radio frequency signal Data transmission based on DOCSIS standard between the local end and the access CMC device;

The sending module is used to:

Transmitting the first radio frequency signal carrying the first target control information and the second DOCSIS control information to the access CMC device, so that the access CMC device demodulates the first according to the second DOCSIS control information The radio frequency signal acquires the first service data carrying the first target control information and modulates the first service data carrying the first target control information into a second radio frequency signal carrying the first target control information.
A network device according to claim 12, wherein

The processing module is used to:

Modulating the first service data into a first radio frequency signal carrying second DOCSIS control information, where the second DOCSIS control information is used to control the first radio frequency signal based between the local end and the access CMC device DOCSIS standard data transmission;

The sending module is used to:

Transmitting the first radio frequency signal carrying the second DOCSIS control information to the access CMC device, so that the access CMC device demodulates the first radio frequency signal according to the second DOCSIS control information to obtain the The first service data, the access CMC device determines first target control information carried by the second radio frequency information according to the type of the first service data, and modulates the first service data to carry first target control information. The second radio frequency signal, the first target control information includes at least one of first EQAM control information and first DOCSIS control information, where the first EQAM control information is used to control the second radio frequency signal at the Into the CMC equipment and Data transmission based on EQAM standard between the branch network devices, the first DOCSIS control information is used to control data of the second radio frequency signal based on DOCSIS standard between the access CMC device and the branch network device transmission.
A network device according to any of claims 12-16, characterized in that

The receiving module is configured to:

Receiving, by the aggregation device, the first service data transmitted by using an Ethernet network; or

Receiving the first service data that is transmitted by the convergence device through a passive optical network PON.
The network device according to any one of claims 12-17, characterized in that the spectral width of the transmission spectrum is not less than 1.2 GHz.
A network device, wherein the network device is a CMC device that accesses a coaxial media converter, and includes:

a receiving module, configured to receive a first radio frequency signal that is sent by the converged coaxial media converter CMC device to modulate the first service data, where the first radio frequency signal is carried by a channel of a predefined transmission spectrum;

a processing module, configured to demodulate the first radio frequency signal to obtain first service data;

The processing module is further configured to determine, according to a predefined service bearer spectrum of the at least one branch network, a target channel corresponding to the first service data;

The processing module is further configured to modulate the first service data into a second radio frequency signal carried by the target channel;

And a sending module, configured to send the second radio frequency signal to each branch network device.
A network device according to claim 19, wherein

The receiving module is configured to:

Receiving, by the aggregation CMC device, a first radio frequency signal carrying second DOCSIS control information, where the second DOCSIS control information is used to control the first service data based on a DOCSIS standard between the aggregation device and the local end data transmission;

The processing module is used to:

Demodulating the first radio frequency signal according to the second DOCSIS control information to obtain the first service data;

Determining first target control information corresponding to the type of the first service data, the first target control information including at least one of first EQAM control information and first DOCSIS control information, where the first EQAM control information is used Controlling, by the EQAM standard, data transmission between the local radio frequency signal and the branch network device, where the first DOCSIS control information is used to control the second radio frequency signal at the local end and the branch network device Data transfer between DOCSIS standards;

And modulating the first service data into a second radio frequency signal carried by the target channel and carrying the first target control information;

The sending module is used to:

Sending, to each branch network device, a second radio frequency signal carrying the first target control information.
A network device according to claim 19, wherein

The receiving module is configured to:

Receiving, by the aggregation CMC device, a first radio frequency signal carrying first target control information, where the first target control information includes at least one of first EQAM control information and first DOCSIS control information, where the first EQAM control The information is used to control data transmission of the first service data between the aggregation device and the branch network device based on an EQAM standard, where the first DOCSIS control information is used to control the first service data in the aggregation Data transmission based on the DOCSIS standard between the device and the branch network device;

The processing module is used to:

Demodulating the first radio frequency signal to obtain first service data carrying first target control information;

And modulating the first service data into a second radio frequency signal carried by the target channel and carrying the first target control information;

The sending module is used to:

Sending, to each branch network device, a second radio frequency signal carrying the first target control information.
A network device according to claim 19, wherein

The receiving module is configured to:

Receiving, by the aggregation CMC device, a first radio frequency signal carrying first target control information and second DOCSIS control information, where the second DOCSIS control information is used to control the first radio frequency signal in the convergence CMC device and the local Data transmission based on the DOCSIS standard between the terminals, the first target control information includes at least one of first EQAM control information and first DOCSIS control information, where the first EQAM control information is used to control the first service data An EQAM-based data transmission between the aggregation device and the branch network device, the first DOCSIS control information being used to control the first service data to be based on the aggregation device and the branch network device DOCSIS standard data transmission;

The processing module is used to:

Demodulating the first radio frequency signal according to the second DOCSIS control information to obtain first service data carrying first target control information;

And modulating the first service data into a second radio frequency signal carried by the target channel and carrying the first target control information;

The sending module is used to:

Sending, to each branch network device, a second radio frequency signal carrying the first target control information.
The network device according to any one of claims 19 to 22, characterized in that the spectral width of the transmission spectrum is not less than 1.2 GHz.
A network system, comprising: a converged coaxial media converter CMC device and at least one access coaxial media converter CMC device, wherein the converged CMC device respectively communicates with the at least one access CMC device through a relay amplifier Connecting, the converging CMC device for performing the method of any one of claims 1 to 6, the accessing CMC device for performing the method of any one of claims 7 to 11;

The accessing CMC device is further configured to receive a fourth radio frequency signal that is sent by the at least one branch network device and modulate the second service data, and demodulate the fourth radio frequency signal to obtain the second service data; a third radio frequency signal modulated by the second service data, the third radio frequency signal passing through the pre Channel bearer in the transmission spectrum defined first; transmitting the third radio frequency signal to the convergence CMC device;

The aggregation CMC device is further configured to receive a third radio frequency signal obtained by accessing a second service data sent by the CMC device, demodulating the third radio frequency signal to obtain second service data, and sending the second service data to the aggregation device. Decoding the second service data, so that the aggregation device transmits the second service data to the core network.
The system of claim 24 wherein:

The accessing CMC device is specifically configured to: receive, by the at least one branch network device, fourth radio frequency information that carries the second target control information, where the second target control information includes the third DOCSIS control information and the second EQAM control information. At least one of the second EQAM control information is used to control data transmission of the fourth radio frequency signal based on an EQAM standard between the access CMC device and the branch network device, where the third DOCSIS control information is used. Controlling the fourth radio frequency signal to transmit data according to the DOCSIS standard between the access CMC device and the branch network device; demodulating the fourth radio frequency information carrying the second target control information to obtain the Two service data; modulating the second service data into a third radio frequency signal carrying fourth DOCSIS control information, where the fourth DOCSIS control information is used to control the third radio frequency signal in the convergence device and the Transmitting a data transmission based on the DOCSIS standard between the CMC devices; transmitting a third radio frequency signal carrying the fourth DOCSIS control information to the converged CMC device;

The aggregation CMC device is specifically configured to: receive a third radio frequency signal that is sent by the access CMC device and carry fourth DOCSIS control information; demodulate the third radio frequency signal to obtain second service data; and send the second service data to the convergence device Transmitting second service data carrying the fourth DOCSIS control information, so that the aggregation device demodulates the second service data carrying the fourth DOCSIS control information to obtain the second service data and the second service data Transfer to the core network.
The system of claim 24 wherein:

The accessing CMC device is specifically configured to: receive, by the at least one branch network device, fourth radio frequency information that carries the second target control information, where the second target control information includes the third DOCSIS control information and the second EQAM control information. At least one of the second EQAM control information for controlling the fourth radio frequency signal in the access CMC device and the branch network Data transmission based on EQAM standard between devices, the third DOCSIS control information is used to control data transmission of the fourth radio frequency signal based on DOCSIS standard between the access CMC device and the branch network device; demodulation The fourth radio frequency information carrying the second target control information is used to obtain the second service data; the second service data is modulated into a third radio frequency signal carrying fourth DOCSIS control information, the fourth DOCSIS control information And a DOCSIS standard-based data transmission between the aggregation CMC device and the access CMC device; and transmitting, by the convergence CMC device, a third radio frequency signal carrying fourth DOCSIS control information;

The aggregation CMC device is specifically configured to: receive a third radio frequency signal that is sent by the access CMC device and carry the fourth DOCSIS control information; and demodulate the third radio frequency signal that carries the fourth DOCSIS control information to obtain the And the second service data is sent to the aggregation device, so that the aggregation device transmits the second service data to the core network.
The system of claim 24 wherein:

The accessing CMC device is specifically configured to: receive, by the at least one branch network device, fourth radio frequency information that carries the second target control information, where the second target control information includes the third DOCSIS control information and the second EQAM control information. At least one of the second EQAM control information is used to control data transmission of the fourth radio frequency signal based on an EQAM standard between the aggregation device and the branch network device, where the third DOCSIS control information is used for control Transmitting, by the fourth radio frequency signal, a data transmission based on a DOCSIS standard between the convergence device and the branch network device; demodulating the fourth radio frequency information carrying the second target control information to obtain the carrying second target control Second service data of the information; modulating the second service data carrying the second target control information into a third radio frequency signal carrying the second target control information and the fourth DOCSIS control information, where the fourth DOCSIS control information is used Controlling the third radio frequency signal between the convergence device and the access CMC device based on DOCSIS standard data transmission; to the sink CMC carry a second target device sends control information and a third RF signal DOCSIS fourth control information;

The aggregation CMC device is specifically configured to: receive a third radio frequency signal that is sent by the access CMC device and that carries second target control information and fourth DOCSIS control information; and demodulate the third radio frequency Signaling to obtain second service data; transmitting, to the aggregation device, second service data carrying second target control information and fourth DOCSIS control information, so that the aggregation device demodulates the carrying second target control information and The second service data of the fourth DOCSIS control information is used to acquire the second service data and transmit the second service data to the core network.
The system of claim 24 wherein:

The accessing CMC device is specifically configured to: receive, by the at least one branch network device, fourth radio frequency information that carries the second target control information, where the second target control information includes the third DOCSIS control information and the second EQAM control information. At least one of the second EQAM control information is used to control data transmission of the fourth radio frequency signal based on an EQAM standard between the aggregation device and the branch network device, where the third DOCSIS control information is used for control Transmitting, by the fourth radio frequency signal, a data transmission based on a DOCSIS standard between the convergence device and the branch network device; demodulating the fourth radio frequency information carrying the second target control information to obtain the carrying second target control Second service data of the information; modulating the second service data carrying the second target control information into a third radio frequency signal carrying the second target control information and the fourth DOCSIS control information, where the fourth DOCSIS control information is used Controlling the third radio frequency signal based on DOCSIS standard data transmission between the converged CMC device and the access CMC device; Poly CMC carry a second target device sends control information and a third RF signal DOCSIS fourth control information;

The aggregation CMC device is specifically configured to: receive a third radio frequency signal that is sent by the access CMC device and that carries the second target control information and the fourth DOCSIS control information; and demodulate the carrying the second target control information and the fourth DOCSIS Controlling a third radio frequency signal of the information to obtain the second service data carrying the second target control information; and transmitting, to the aggregation device, the second service data carrying the second target control information, so that the aggregation device demodulates The second service data carrying the second target control information is used to acquire the second service data and transmit the second service data to a core network.
A system according to claims 24-28, characterized in that

The accessing the CMC device is specifically configured to: use the second service data according to the DOCSIS 3.1 standard Quasi-modulated into the third radio frequency signal, the third radio frequency signal being carried over a channel of a predefined transmission spectrum.