WO2018086581A1 - 信号共缆传输的方法及系统 - Google Patents

信号共缆传输的方法及系统 Download PDF

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Publication number
WO2018086581A1
WO2018086581A1 PCT/CN2017/110418 CN2017110418W WO2018086581A1 WO 2018086581 A1 WO2018086581 A1 WO 2018086581A1 CN 2017110418 W CN2017110418 W CN 2017110418W WO 2018086581 A1 WO2018086581 A1 WO 2018086581A1
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end device
spectrum resource
management server
signal
resource management
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PCT/CN2017/110418
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English (en)
French (fr)
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张神力
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深圳创维数字技术有限公司
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Publication of WO2018086581A1 publication Critical patent/WO2018086581A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • the present disclosure relates to the field of communications technologies, for example, to a method and system for signal co-cable transmission.
  • the modification of the two-way network may employ at least one of Cable Modem (CM) technology and Ethernet Over Cable (EOC) technology.
  • CM Cable Modem
  • EOC Ethernet Over Cable
  • the CM technology is based on the Data Over Cable Service Interface Specifications (DOCSIS) and accesses bandwidth services via cable modems.
  • DOCSIS Data Over Cable Service Interface Specifications
  • the signal transmitted by the CM technology is called a CM signal.
  • the EOC technology is based on the access technology of the cable TV coaxial cable network using the Ethernet protocol, and the signal transmitted by the EOC technology is called the EOC signal.
  • CM system CM
  • EOC system EOC
  • CM system CM
  • EOC system EOC
  • CM Complementary Metal-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-Oxide-O
  • CNU Cable Network Unit
  • the CM system and the EOC system also include front-end equipment.
  • the front-end equipment in the CM system is a Cable Modem Temination System (CMTS)
  • the front-end equipment in the EOC system is a Communication Line Terminal (CLT).
  • the front-end device can be used as a distribution point and connected to multiple client devices through cables.
  • two devices, the CMTS and the CLT may be disposed in a network distribution area of a cell, and the CMTS and the CLT are respectively connected to the user equipments of the plurality of users through cables.
  • CMTS and the CM share the cable transmission signal
  • CLT and the CNU use a shared cable to transmit signals.
  • a CM signal and an EOC signal are co-cable (that is, one cable is used). Since the frequency range of the CM uplink signal is 5-65 MHz, the frequency range of the EOC uplink signal is 7.6-65MHz, the frequency range of the two signals overlaps.
  • the transmission of the EOC signal is defined as two modes of operation.
  • the first mode of operation is the basic mode (the frequency range of the EOC signal is 7.6-30 MHz)
  • the second mode of operation is the extended mode (the frequency of the EOC signal is in the range of 7.6-65 MHz).
  • the EOC uplink signal operates in the basic mode, that is, the EOC signal has a frequency range of 7.6-30 MHz, and the CM uplink signal has a frequency range of 30-65 MHz.
  • the process of providing an online service for a user terminal includes the following steps.
  • the user terminal initiates an online request to the user equipment
  • the user equipment forwards the online request to the front-end device.
  • the front-end device estimates the bandwidth requirement for the Internet access request for the Internet access request.
  • the bandwidth requirement may include the spectrum band required for the Internet access (ie, the spectrum bandwidth) and the length of time (ie, the mini-slot) used by the network.
  • the front-end device allocates a new spectrum band and a mini-slot for the current Internet access request in combination with the spectrum resources that have been allocated to other front-end devices connected to the front-end device.
  • the front-end device sends the allocated spectrum band and the mini-slot to the user equipment through the channel change message, and the user equipment sends and receives signals based on the allocated spectrum band and the mini-slot and the front-end device, and provides the Internet access service for the user terminal.
  • CM technology and EOC technology front-end equipment allocates spectrum band resources within its own given frequency range.
  • signal spectrum is frequency-division multiplexed.
  • a signal common cable transmission method and system can improve utilization of spectrum resources.
  • a signal common cable transmission method includes:
  • the spectrum resource management server receives the bandwidth allocation request sent by the first front-end device
  • the spectrum resource management server determines, according to the bandwidth allocation request, a preset spectrum resource that has been allocated for the first front-end device and the second front-end device that transmits signals with the first front-end device a first spectrum resource allocated by the first front end device;
  • the spectrum resource management server sends the first spectrum resource to the first front-end device to instruct the first front-end device to use the first spectrum resource to transmit a signal to the client device.
  • the first front end device includes at least one of a cable modem termination system CMTS and a communication line termination CLT;
  • the second front end device includes at least one of a cable modem termination system CMTS and a communication line termination CLT;
  • the client device includes a cable modem CM and a coaxial cable network unit CNU.
  • the method before the determining, by the spectrum resource management server, the first spectrum resource that is allocated by the first front-end device, the method further includes:
  • the spectrum resource management server identifies a first front-end device that initiates the bandwidth allocation request, and determines a second front-end device that transmits a signal to the first front-end device.
  • the first front-end device before the first front-end device sends a bandwidth allocation request to the spectrum resource management server, the first front-end device receives a user online request sent by the user equipment;
  • the first front-end device determines a bandwidth required for accessing the Internet according to the online request of the user, and generates the bandwidth allocation request.
  • the spectrum resource includes a spectrum band and a mini-slot
  • the bandwidth allocation request includes a spectrum band and a micro-slot required for accessing the Internet.
  • a signal common cable transmission system includes: a spectrum resource management server, a first front-end device, and a client device; wherein
  • the spectrum resource management server is connected to the first front-end device, and configured to receive a bandwidth allocation request sent by the first front-end device; according to the bandwidth allocation request, and the first front-end device and the Determining, by the first front-end device, a preset spectrum resource allocated by the front-end device of the signal transmission line, determining a first spectrum resource allocated to the first front-end device; and transmitting the first spectrum resource to the first front-end device, Instructing the first front-end device to use the first spectrum resource to transmit a signal to the user equipment;
  • the first front-end device is connected to the spectrum resource management server and the user equipment, and is configured to send the bandwidth allocation request to the spectrum resource management server, receive the first spectrum resource, and use the Transmitting, by the first spectrum resource, the signal transmitted by the user equipment;
  • the client device is configured to transmit a signal with the first front end device.
  • the first front end device includes at least one of a cable modem termination system CMTS and a communication line termination CLT;
  • the second front end device includes at least one of a cable modem termination system CMTS and a communication line termination CLT;
  • the client device includes a cable modem CM and a coaxial cable network unit CNU.
  • the spectrum resource management server is further configured to:
  • the first spectrum resource allocated to the first front-end device Before determining the first spectrum resource allocated to the first front-end device, identifying a first front-end device that initiates the bandwidth allocation request, and determining the second front-end device that transmits a signal with the first front-end device.
  • the first front-end device is further configured to: before sending a bandwidth allocation request to the spectrum resource management server, receive a user online request sent by the user equipment, and determine a bandwidth required for the Internet according to the user online request, And generating the bandwidth allocation request.
  • the spectrum resource includes a spectrum band and a mini-slot
  • the bandwidth allocation request includes a spectrum band and a micro-slot required for accessing the Internet.
  • a computer readable storage medium storing computer executable instructions arranged to perform the method of any of the above.
  • a spectrum resource management server comprising:
  • At least one processor At least one processor
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method described above.
  • FIG. 1 is a schematic flow chart of a signal common cable transmission method according to Embodiment 1;
  • FIG. 2 is a structural diagram of a signal common cable transmission system according to Embodiment 1;
  • FIG. 3 is a schematic flow chart of a signal common cable transmission method according to Embodiment 2;
  • Embodiment 4 is a schematic structural diagram of a signal common cable transmission system provided in Embodiment 3.
  • FIG. 5 is a schematic diagram showing the hardware structure of a spectrum resource management server according to Embodiment 4.
  • FIG. 1 is a flowchart of a method for transmitting a signal common cable according to Embodiment 1.
  • the method is applicable to a case where a CM signal and an EOC signal are transmitted by a common cable, and can be performed by a signal common cable transmission system.
  • the system can be implemented by at least one of hardware and software.
  • the system structure is as shown in FIG. 2.
  • the system includes: a spectrum resource management server 210, a front end device (which may be CLT220 and CMTS250), and a client device (may be CNU230). And CM 260), and user terminal devices (first user terminal device 240 and second user terminal device 270).
  • the spectrum resource management server 210 is connected to the front end devices CLT220 and CMTS 250, respectively.
  • the spectrum resource management server 210 is configured to receive the bandwidth allocation request sent by the front-end device CLT 220 and the CMTS 250, and determine the allocation to the front-end device according to the bandwidth allocation request and the first spectrum resource that has been allocated for the front-end device CLT220 and the CMTS 250.
  • the second spectrum resource and the second spectrum resource are sent to the headend equipment CLT220 and CMTS250 to instruct the headend equipment CLT220 and CMTS250 to transmit signals with the client equipment CNU230 and CM260 using the second spectrum resource.
  • CLT220 and CMTS250 transmit signals together.
  • the front end device CLT 220 is connected to the spectrum resource management server 210 and the client device CNU 230.
  • the front-end device CLT 220 is configured to send a bandwidth allocation request to the spectrum resource management server 210, and receive the spectrum resource allocated by the spectrum resource management server 210 for the front-end device CLT220, and use the spectrum resource to transmit signals with the client equipment CNU230.
  • the client device CNU 230 is configured to transmit a signal to the front end device CLT 220, convert the radio frequency signal into an internet signal, and transmit the internet signal to the first user terminal device 240.
  • the front end device CMTS 250 is connected to the spectrum resource management server 210 and the client device CM260.
  • the front-end device CMTS 250 is configured to send a bandwidth allocation request to the spectrum resource management server 210, and receive the spectrum resource allocated by the spectrum resource management server 210 for the front-end device CMTS250, and use the spectrum resource to transmit signals with the client device CM260.
  • the client device CM260 is arranged to transmit a signal with the headend device CMTS250, convert the radio frequency signal into an internet signal, and transmit the internet signal to the second user terminal device 270.
  • the signal common cable transmission method includes the following steps.
  • step 110 the spectrum resource management server receives the bandwidth allocation request sent by the first front-end device.
  • the first front-end device determines the bandwidth required by the user equipment according to the online request of the user equipment, generates a bandwidth allocation request, and sends the bandwidth allocation request to the spectrum resource management server.
  • the client device may be a device that communicates with a user terminal by wire or wirelessly.
  • the online request of the client device represents the Internet access requirement of the user terminal device.
  • the user terminal device may be an electronic device such as a mobile phone, a computer or a television that can access the Internet or can communicate with the first front-end device.
  • the first front-end device may include: at least one of a CMTS and a CLT
  • the second front-end device may include: at least one of a CMTS and a CLT
  • the client device may include a CM and CNU, that is, when the front-end device is a CMTS, the client device corresponding to the CMTS is a CM, and when the front-end device is a CLT, the client device corresponding to the CLT is a CNU.
  • the bandwidth allocation request includes an uplink bandwidth usage requirement of the CM and an uplink bandwidth usage requirement of the CNU.
  • the upstream bandwidth of the CM may range from 5 to 65 MHz, and the upstream bandwidth of the CNU may range from 7.6 to 30 MHz or 7.6 to 65 MHz.
  • the spectrum resource management server determines the first front-end device according to the bandwidth allocation request and the preset spectrum resource that has been allocated by the first front-end device and the second front-end device that transmits the signal to the first front-end device. The first spectrum resource allocated.
  • the preset spectrum resource is a spectrum resource with a bandwidth frequency range of 5-65 MHz allocated for the CMTS, and the bandwidth frequency range allocated for the CLT is 7.6-30 MHz or 7.6- Spectrum resources of 65 MHz.
  • the spectrum resource may include a spectrum band and a minislot, and the bandwidth allocation request includes a required spectrum band and a minislot.
  • the spectrum band may be a spectrum band of 200 KHz, that is, the spectrum band is an integer multiple of 200 KHz.
  • a frequency band with a center band of 5.2 MHz ie, a spectrum bandwidth
  • the frequency band corresponds to the micro
  • the time slot can be determined to be 2 s according to the bandwidth allocation request.
  • the bandwidth allocation request may further include: a physical address of the first front-end device and a modulation manner of the signal, so that the spectrum resource management server identifies the first front-end device that initiates the bandwidth allocation request.
  • the method may further include: the spectrum resource management server identifying the front-end device that initiates the bandwidth allocation request, and determining The front end device transmits a signal to the second front end device.
  • the first front-end device that initiates the bandwidth allocation request is a CMTS
  • the paired second front-end device that transmits the signal with the CMTS is a CLT.
  • one CMTS is paired with one or more CLTs.
  • the spectrum resource management server sends the first spectrum resource to the first front-end device to instruct the first front-end device to use the first spectrum resource to transmit a signal to the client device.
  • the first front-end device after receiving the first spectrum resource sent by the spectrum resource management server, the first front-end device generates a channel change message (a message for indicating a channel change) by using the first spectrum resource, and the channel is The change message is sent to the client device to implement signal transmission.
  • a channel change message (a message for indicating a channel change) by using the first spectrum resource
  • the spectrum resource management server coordinates the allocation of the spectrum resources, thereby avoiding interference between the spectrum resources used by the CLT and the CMTS to transmit signals, and improving the utilization of the spectrum resources.
  • FIG. 3 is a schematic flowchart of a signal common cable transmission method according to Embodiment 2, where the method is based on Embodiment 1, and the method can respond to a user's Internet access request.
  • the method includes the following steps.
  • step 310 the first front-end device receives the user's online request sent by the user equipment.
  • the user online request may be a request for a user to download a video resource, or a request to browse a web page.
  • the first front-end device determines the bandwidth required for the Internet access according to the online request of the user, generates a bandwidth allocation request, and sends the bandwidth allocation request to the spectrum resource management server.
  • the first front-end device determines a required bandwidth according to the user online request, and the generating the bandwidth allocation request includes:
  • the central spectrum band is expanded in units of 200 kHz to obtain a target spectrum band
  • the target spectrum band and the corresponding minislot are determined as bandwidth allocation requests.
  • the center frequency band may be determined to be 10 MHz, and the target frequency band obtained after expanding 10 MHz (ie, 10 MHz to 200 KHZ) in units of 200 KHZ is 9.8 MHz to 0.12 MHz.
  • the microslot corresponding to the target band can be determined to be 10 s.
  • step 330 the spectrum resource management server receives a bandwidth allocation request sent by the first front-end device.
  • the spectrum resource management server determines, according to the received bandwidth allocation request, a preset spectrum resource that has been allocated for the first front-end device and the second front-end device that transmits the signal to the first front-end device.
  • the first spectrum resource allocated by the first front end device is allocated by the first front end device.
  • the spectrum resource management server sends the first spectrum resource to the first front-end device to instruct the front-end device to use the spectrum resource to transmit a signal to the user equipment.
  • the first front-end device before the first front-end device sends the bandwidth allocation request, the first front-end device receives the user online request sent by the user equipment, according to the user
  • the online request determines the required bandwidth, generates a bandwidth allocation request, accurately responds to the user's online request, and improves the utilization of spectrum resources.
  • FIG. 4 is a schematic structural diagram of a signal common cable transmission system according to Embodiment 3.
  • the system includes the following: a spectrum resource management server 410, a first front-end device 420, and a client device 430.
  • the spectrum resource management server 410 is connected to the first front-end device 420, and configured to receive the bandwidth allocation request sent by the front-end device 420, and according to the bandwidth allocation request, and transmit signals to the first front-end device 420 and the first front-end device 420.
  • the first spectrum resource allocated by the second front-end device is determined, and the first spectrum resource allocated to the first front-end device 420 is determined, and the first spectrum resource is sent to the first front-end device 420 to instruct the first front-end device 420 to use the
  • the first spectrum resource and the client device 430 transmit signals.
  • the first front-end device 420 is connected to the spectrum resource management server 410 and the client device 430, respectively.
  • the method is configured to send a bandwidth allocation request to the spectrum resource management server 410, receive the first spectrum resource allocated by the spectrum resource management server 410, and transmit the signal with the user equipment 430 by using the first spectrum resource.
  • the client device 430 is arranged to transmit signals with the first headend device 420.
  • the spectrum resource management server 410 is further configured to: before determining that the first front-end device 420 allocates the first spectrum resource, identify the first front-end device that initiates the bandwidth allocation request, and determine that the signal is transmitted with the first front-end device. Second front-end device.
  • the first front-end device 420 is further configured to receive a user online request sent by the user equipment 430, determine a bandwidth required for accessing the Internet according to the online request of the user, and generate a bandwidth allocation request.
  • the spectrum resource includes a spectrum band and a mini-slot
  • the bandwidth allocation request includes a spectrum band and a micro-slot required for accessing the Internet.
  • the first front end device 420 includes: a CMTS and a CLT; the client end device 410 includes a CM and a CNU.
  • the spectrum resource management server coordinates the allocation of spectrum resources, thereby avoiding interference between spectrum resources used by the front-end equipment when at least two front-end equipment transmit signals in a common cable, thereby improving utilization of spectrum resources. rate.
  • All or part of the steps in the above embodiments may be implemented by a program to control related hardware, the program being stored in a storage medium, including one or more instructions for causing a device (which may be a microcontroller, a chip, etc.) or A processor performs all or part of the steps of the method in the above embodiments.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store a program code.
  • the above technical solution may be embodied in the form of a software product stored in a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to execute All or part of the steps of the method described in the above embodiments.
  • a computer device which may be a personal computer, a server, a network device, etc.
  • This embodiment provides a hardware structure diagram of a spectrum resource management server. See Figure 5, the The spectrum resource management server includes:
  • At least one processor 50 is exemplified by a processor 50 in FIG. 5; a memory 51; and a communication interface 52 and a bus 53.
  • the processor 50, the memory 51, and the communication interface 52 can complete communication with each other through the bus 53.
  • Communication interface 52 can transmit data and signals.
  • the processor 50 can call the logic instructions in the memory 51 to perform the method performed by the spectrum resource management server in the above embodiment.
  • logic instructions in the memory 51 described above may be implemented in the form of software functional units and sold or used as separate products, and may be stored in a computer readable storage medium.
  • the memory 51 is a computer readable storage medium, and can be configured to store a software program, a computer executable program, such as a program instruction or a module corresponding to a method executed by the spectrum resource management server in the above embodiment.
  • the processor 50 executes the function application and the data processing by executing a software program, an instruction or a module stored in the memory 51, that is, the method performed by the spectrum resource management server in the above embodiment.
  • the memory 51 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal, and the like. Further, the memory 51 may include a high speed random access memory, and may also include a nonvolatile memory.
  • Signal co-cable transmission methods and systems increase the utilization of spectrum resources.

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  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

一种信号共缆传输方法包括：频谱资源管理服务器接收第一前端设备发送的带宽分配请求；所述频谱资源管理服务器根据所述带宽分配请求，以及已为所述第一前端设备和与所述第一前端设备共缆传输信号的第二前端设备分配的预设频谱资源，确定为所述第一前端设备分配的第一频谱资源；以及所述频谱资源管理服务器将所述第一频谱资源发送给所述第一前端设备，以指示所述第一前端设备使用所述第一频谱资源与用户端设备传输信号。还公开了一种信号共缆传输系统。

Description

信号共缆传输的方法及系统 技术领域
本公开涉及通信技术领域，例如涉及一种信号共缆传输的方法及系统。
背景技术
对双向网络的改造可以采用电缆调制解调器(Cable Modem，CM)技术和以太网电缆(Ethernet Over Cable，EOC)技术中的至少之一。
CM技术基于有线电缆数据服务接口规范(Data Over Cable Service Interface Specifications，DOCSIS)，通过电缆调制解调器接入带宽业务。通过CM技术进行传输的信号称为CM信号。
EOC技术是基于有线电视同轴电缆网使用以太网协议的接入技术，通过EOC技术进行传输的信号称为EOC信号。
相关技术中，采用CM技术的系统(CM系统)和采用EOC技术的系统(EOC系统)包括设置在用户侧的用户端设备，例如，CM系统中的用户端设备为CM，和EOC系统中的用户端设备为同轴电缆网络单元(Cable Network Unit，CNU)。这些用户端设备可以集成于家用的机顶盒中，以有线或无线通信方式与用户家中的用户终端进行通信，并为诸如手机或计算机等用户终端提供上网服务。
CM系统和EOC系统还包括前端设备，例如CM系统中的前端设备为电缆调制解调器终端系统(Cable Modem Temination System，CMTS)，和EOC系统中的前端设备为通信线路终端(Communication Line Terminal，CLT)。前端设备可以作为集散点，与多个用户端设备通过电缆相连。例如，CMTS和CLT这两个设备可以设置在一小区的网络集散区中，CMTS和CLT分别通过电缆与多个用户家中的用户端设备连接。
由于电缆线路的布设方式不同，可能出现CMTS与CM共用电缆传输信号，以及CLT与CNU采用共用电缆传输信号的现象。在同时采用CM技术和EOC技术的系统中，存在CM信号和EOC信号共缆(即采用一根电缆)传输的现象。由于CM上行信号的频率范围为5-65MHz，EOC上行信号的频率范围为 7.6-65MHz，两种信号的频率范围存在重叠的情况。
为了避免CM上行信号的频率范围与EOC信号的频率范围重叠，相关技术中，在定义EOC通信协议时，将EOC信号的传输定义为两种工作模式。第一种工作模式为基本模式(EOC信号的频率范围为7.6-30MHz)，第二种工作模式为扩展模式(EOC信号的频率为范围为7.6-65MHz)。当CM信号和EOC信号共缆传输时，EOC上行信号工作在基本模式，也就是EOC信号的频率范围为7.6-30MHz，CM上行信号的频率范围为30-65MHz。
相关技术中，为用户终端提供上网服务时的过程包括以下步骤。当用户终端向用户端设备发起上网请求时，用户端设备将上网请求转发给前端设备。前端设备为该上网请求估算上网所需的带宽需求，带宽需求可以包括上网所需的频谱带(即频谱带宽)以及使用网络的时间长度(即微时隙)。前端设备结合已分配给与该前端设备连接的其他前端设备的频谱资源，为当前的上网请求分配新的频谱带和微时隙。前端设备将分配的频谱带和微时隙通过信道改变消息，发送给用户端设备，用户端设备基于分配的频谱带和微时隙与前端设备收发信号，并为用户终端提供上网服务。
在CM技术和EOC技术中，前端设备均在自身给定的频率范围内进行频谱带资源的分配。相关技术中，只是将信号频谱进行频分复用，当CM系统和EOC系统的负载不均衡时，并没有充分利用频谱资源且不能更好地满足用户的上网需求。
发明内容
一种信号共缆传输方法及系统，能够提高频谱资源的利用率。
一种信号共缆传输方法，包括：
频谱资源管理服务器接收第一前端设备发送的带宽分配请求；
所述频谱资源管理服务器根据所述带宽分配请求，以及已为所述第一前端设备和与所述第一前端设备共缆传输信号的第二前端设备分配的预设频谱资源，确定为所述第一前端设备分配的第一频谱资源；以及
所述频谱资源管理服务器将所述第一频谱资源发送给所述第一前端设备，以指示所述第一前端设备使用所述第一频谱资源与用户端设备传输信号。
可选的，所述第一前端设备包括：电缆调制解调器终端系统CMTS和通信线路终端CLT中的至少一类；
所述第二前端设备包括：电缆调制解调器终端系统CMTS和通信线路终端CLT中的至少一类；以及
所述用户端设备包括电缆调制解调器CM和同轴电缆网络单元CNU。
可选的，所述频谱资源管理服务器确定为所述第一前端设备分配的第一频谱资源之前，所述方法还包括：
所述频谱资源管理服务器识别发起所述带宽分配请求的第一前端设备，并确定与该第一前端设备共缆传输信号的第二前端设备。
可选的，所述第一前端设备向所述频谱资源管理服务器发送带宽分配请求之前，所述第一前端设备接收用户端设备发送的用户上网请求；以及
所述第一前端设备根据所述用户上网请求确定上网所需带宽，并生成所述带宽分配请求。
可选的，所述频谱资源包括频谱带和微时隙，以及所述带宽分配请求中包括上网所需频谱带和微时隙。
一种信号共缆传输系统，包括：频谱资源管理服务器、第一前端设备和用户端设备；其中，
所述频谱资源管理服务器，与所述第一前端设备连接，设置为接收所述第一前端设备发送的带宽分配请求；根据所述带宽分配请求，以及已为所述第一前端设备和与所述第一前端设备共缆传输信号前端设备分配的预设频谱资源，确定为所述第一前端设备分配的第一频谱资源；以及将所述第一频谱资源发送给所述第一前端设备，以指示所述第一前端设备使用所述第一频谱资源与用户端设备传输信号；
所述第一前端设备，分别与所述频谱资源管理服务器和所述用户端设备连接，设置为向所述频谱资源管理服务器发送所述带宽分配请求，接收所述第一频谱资源，并利用所述第一频谱资源与所述用户端设备传输信号；以及
所述用户端设备设置为与所述第一前端设备传输信号。
可选的，所述第一前端设备包括：电缆调制解调器终端系统CMTS和通信线路终端CLT中的至少一类；
所述第二前端设备包括：电缆调制解调器终端系统CMTS和通信线路终端CLT中的至少一类；以及
所述用户端设备包括电缆调制解调器CM和同轴电缆网络单元CNU。
可选的，所述频谱资源管理服务器还设置为：
确定为所述第一前端设备分配的第一频谱资源之前，识别发起所述带宽分配请求的第一前端设备，并确定与所述第一前端设备共缆传输信号的所述第二前端设备。
可选的，所述第一前端设备还设置为向所述频谱资源管理服务器发送带宽分配请求之前，接收所述用户端设备发送的用户上网请求，根据所述用户上网请求确定上网所需带宽，并生成所述带宽分配请求。
可选的，所述频谱资源包括频谱带和微时隙，以及所述带宽分配请求中包括上网所需频谱带和微时隙。
一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述任一项的方法。
一种频谱资源管理服务器，包括：
至少一个处理器；以及
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器执行上述方法。
附图说明
图1是实施例一提供的一种信号共缆传输方法流程示意图；
图2是实施例一提供的一种信号共缆传输系统的架构图；
图3是实施例二提供的一种信号共缆传输方法流程示意图；
图4是实施例三提供的一种信号共缆传输系统的结构示意图；以及
图5是实施例四提供的频谱资源管理服务器的硬件结构示意图。
具体实施方式
实施例一
图1为本实施例一提供的一种信号共缆传输方法流程图，该方法可适用于共缆传输CM信号和EOC信号的情况，可以由信号共缆传输系统来执行。该系统可通过硬件和软件中的至少一种实现，该系统结构如图2所示，该系统包括：频谱资源管理服务器210、前端设备(可以是CLT220和CMTS250)、用户端设备(可以是CNU230和CM260)、以及用户终端设备(第一用户终端设备240和第二用户终端设备270)。
频谱资源管理服务器210分别与前端设备CLT220和CMTS250连接。频谱资源管理服务器210设置为接收前端设备CLT220和CMTS250发送的带宽分配请求，并根据所述带宽分配请求，以及已为前端设备CLT220和CMTS250分配的第一频谱资源，确定为所述前端设备分配的第二频谱资源，并将第二频谱资源发送给前端设备CLT220和CMTS250，以指示前端设备CLT220和CMTS250使用第二频谱资源与用户端设备CNU230和CM260传输信号。其中，CLT220和CMTS250共缆传输信号。
前端设备CLT220与频谱资源管理服务器210和用户端设备CNU230连接。前端设备CLT220设置为向频谱资源管理服务器210发送带宽分配请求，并接收频谱资源管理服务器210为前端设备CLT220分配的频谱资源，并利用该频谱资源与用户端设备CNU230传输信号。
用户端设备CNU230设置为与前端设备CLT220传输信号，将射频信号转换为互联网信号，并将互联网信号发送给第一用户终端设备240。
前端设备CMTS250与频谱资源管理服务器210和用户端设备CM260连接。前端设备CMTS250设置为向频谱资源管理服务器210发送带宽分配请求，并接收频谱资源管理服务器210为前端设备CMTS250分配的频谱资源，并利用该频谱资源与用户端设备CM260传输信号。
用户端设备CM260设置为与前端设备CMTS250传输信号，将射频信号转换为互联网信号，并将互联网信号发送给第二用户终端设备270。
所述信号共缆传输方法包括如下步骤。
步骤110中，频谱资源管理服务器接收第一前端设备发送的带宽分配请求。
可选的，所述第一前端设备根据用户端设备的上网请求确定所述用户端设备所需的带宽，生成带宽分配请求，并将所述带宽分配请求发送给所述频谱资源管理服务器。所述用户端设备可以是通过有线或者无线与用户终端通信的设备。用户端设备的上网请求代表的是用户终端设备的上网需求。用户终端设备可以是手机，电脑或者电视等能够上网的或者能够与第一前端设备通信的电子设备。
示例性地，所述第一前端设备可以包括：CMTS和CLT中的至少一类，所述第二前端设备可以包括：CMTS和CLT中的至少一类，以及所述用户端设备可以包括CM和CNU，即当所述前端设备是CMTS时，CMTS对应的用户端设备是CM，当所述前端设备是CLT时，CLT对应的用户端设备是CNU。
可选的，所述带宽分配请求包括CM的上行带宽使用需求和CNU的上行带宽使用需求。所述CM的上行带宽频率范围可以为5-65MHZ，所述CNU的上行带宽频率范围可以为7.6-30MHZ或者7.6-65MHZ。
步骤120中，所述频谱资源管理服务器根据带宽分配请求，以及已为第一前端设备和与第一前端设备共缆传输信号的第二前端设备分配的预设频谱资源，确定为第一前端设备分配的第一频谱资源。
例如，所述第二前端设备包括CMTS和CLT时，所述预设频谱资源是为CMTS分配的带宽频率范围为5-65MHZ的频谱资源，为CLT分配的带宽频率范围为7.6-30MHZ或者7.6-65MHZ的频谱资源。
示例性地，所述频谱资源可以包括频谱带和微时隙，所述带宽分配请求中包括所需频谱带和微时隙。所述频谱带可以是以200KHz为单位的频谱带，即所述频谱带为200KHz的整数倍，例如，中心频带为5.2MHZ的频带(即频谱带宽)为5MHZ-5.4MHZ，该频带对应的微时隙可以根据带宽分配请求确定为2s。
可选地，所述带宽分配请求中还可以包括第一前端设备的物理地址和信号的调制方式，以使所述频谱资源管理服务器识别发起带宽分配请求的第一前端设备。
示例性地，所述频谱资源管理服务器确定为第一前端设备分配的第一频谱资源之前，上述方法还可以包括：所述频谱资源管理服务器识别发起带宽分配请求的前端设备，并确定与第一前端设备共缆传输信号的第二前端设备。例如，当发起带宽分配请求的第一前端设备是CMTS时，则与该CMTS共缆传输信号的配对第二前端设备为CLT。
可选的，一个CMTS与一个或多个CLT配对。
步骤130中，所述频谱资源管理服务器将第一频谱资源发送给第一前端设备，以指示第一前端设备使用第一频谱资源与用户端设备传输信号。
可选的，第一前端设备接收到所述频谱资源管理服务器发送过来的第以频谱资源后，利用所述第一频谱资源生成信道改变消息(用于指示信道发生变化的消息)，并将信道改变消息发送给用户端设备，以实现信号的传输。
上述实施例提供的信号共缆传输方法中，频谱资源管理服务器协调分配频谱资源，避免了CLT和CMTS共缆传输信号时两者使用的频谱资源之间的干扰，提高了频谱资源的利用率。
实施例二
图3为本实施例二提供的一种信号共缆传输方法流程示意图，本实施例以实施例一为基础，所述方法可以响应用户的上网请求。参见图3所示，该方法包括如下步骤。
步骤310中，第一前端设备接收用户端设备发送的用户上网请求。
例如，所述用户上网请求可以是用户下载一视频资源的请求，或者浏览网页的请求。
步骤320中，第一前端设备根据所述用户上网请求确定上网所需带宽，生成带宽分配请求，并将所述带宽分配请求发送给频谱资源管理服务器。
可选的，所述第一前端设备根据所述用户上网请求确定所需带宽，生成带宽分配请求包括：
根据所述用户上网请求确定中心频谱带；
以200KHZ为单位对所述中心频谱带进行扩展，得到目标频谱带；
根据所述目标频谱带以及所述用户上网请求确定该目标频谱带对应的微时隙；以及
将所述目标频谱带以及对应的微时隙确定为带宽分配请求。
例如，用户的上网请求为下载一个100M比特的数据资源，则可以确定中心频带为10MHZ，以200KHZ为单位对10MHZ进行扩展(即，10MHZ±200KHZ)后得到的目标频带为9.8MHZ-10.2MHZ，目标频带对应的微时隙可以确定为10s。
步骤330中，所述频谱资源管理服务器接收第一前端设备发送的带宽分配请求。
步骤340中，所述频谱资源管理服务器根据接收的带宽分配请求，以及已为第一前端设备和与第一前端设备共缆传输信号的第二前端设备分配的预设频谱资源，确定为所述第一前端设备分配的第一频谱资源。
步骤350中，所述频谱资源管理服务器将第一频谱资源发送给第一前端设备，以指示所述前端设备使用所述频谱资源与用户端设备传输信号。
本实施例提供的信号共缆传输方法，在上述实施例技术方案的基础上，在第一前端设备发送带宽分配请求之前，第一前端设备接收用户端设备发送的用户上网请求，根据所述用户上网请求确定所需带宽，生成带宽分配请求，准确响应用户的上网请求，提高了频谱资源的利用率。
实施例三
图4为本实施例三提供的一种信号共缆传输系统的结构示意图，参见图4所示，该系统包括如下：频谱资源管理服务器410、第一前端设备420和用户端设备430。
频谱资源管理服务器410，与第一前端设备420连接，设置为接收前端设备420发送的带宽分配请求，并根据带宽分配请求，以及为第一前端设备420和与第一前端设备420共缆传输信号的第二前端设备分配的预设频谱资源，确定为第一前端设备420分配的第一频谱资源，并将第一频谱资源发送给第一前端设备420，以指示第一前端设备420使用所述第一频谱资源与用户端设备430传输信号。
第一前端设备420，分别与频谱资源管理服务器410和用户端设备430连接， 设置为向频谱资源管理服务器410发送带宽分配请求，接收频谱资源管理服务器410分配的第一频谱资源，并利用所述第一频谱资源与用户端设备430传输信号。
用户端设备430设置为与第一前端设备420传输信号。
可选地，频谱资源管理服务器410还设置为：确定为第一前端设备420分配第一频谱资源之前，识别发起带宽分配请求的第一前端设备，并确定与第一前端设备共缆传输信号的第二前端设备。
可选地，第一前端设备420还设置为接收用户端设备430发送的用户上网请求，根据所述用户上网请求确定上网所需带宽，并生成带宽分配请求。
示例性地，所述频谱资源包括频谱带和微时隙，所述带宽分配请求中包括上网所需频谱带和微时隙。
示例性地，第一前端设备420包括：CMTS和CLT；用户端设备410包括CM和CNU。
上述实施例提供的信号共缆传输系统中，频谱资源管理服务器协调分配频谱资源，避免了至少两种前端设备共缆传输信号时前端设备使用的频谱资源之间的干扰，提高了频谱资源的利用率。
上述实施例方法中的全部或部分步骤可以通过程序来控制相关的硬件来完成，该程序存储在一个存储介质中，包括一个或多个指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行上述实施例中方法的全部或部分步骤。前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等多种可以存储程序代码的介质。
以上技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括一个或多个指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行上述实施例所述方法的全部或部分步骤。
实施例四
本实施例提供了一种频谱资源管理服务器的硬件结构示意图。参见图5，该 频谱资源管理服务器包括：
至少一个处理器(processor)50，图5中以一个处理器50为例；存储器(memory)51；还可以包括通信接口(Communications Interface)52和总线53。其中，处理器50、存储器51以及通信接口52可以通过总线53完成相互间的通信。通信接口52可以传输数据和信号。处理器50可以调用存储器51中的逻辑指令，以执行上述实施例中频谱资源管理服务器执行的方法。
此外，上述的存储器51中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器51作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序，如上述实施例中频谱资源管理服务器执行的方法对应的程序指令或模块。处理器50通过运行存储在存储器51中的软件程序、指令或模块，从而执行功能应用以及数据处理，即实现上述实施例中频谱资源管理服务器执行的方法。
存储器51可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端的使用所创建的数据等。此外，存储器51可以包括高速随机存取存储器，还可以包括非易失性存储器。
工业实用性
信号共缆传输方法和系统提高了频谱资源的利用率。

Claims (11)

  1. 一种信号共缆传输方法，包括：
    频谱资源管理服务器接收第一前端设备发送的带宽分配请求；
    所述频谱资源管理服务器根据所述带宽分配请求，以及已为所述第一前端设备和与所述第一前端设备共缆传输信号的第二前端设备分配的预设频谱资源，确定为所述第一前端设备分配的第一频谱资源；以及
    所述频谱资源管理服务器将所述第一频谱资源发送给所述第一前端设备，以指示所述第一前端设备使用所述第一频谱资源与用户端设备传输信号。
  2. 根据权利要求1所述的方法，其中：
    所述第一前端设备包括：电缆调制解调器终端系统CMTS和通信线路终端CLT中的至少一类；
    所述第二前端设备包括：电缆调制解调器终端系统CMTS和通信线路终端CLT中的至少一类；以及
    所述用户端设备包括电缆调制解调器CM和同轴电缆网络单元CNU。
  3. 根据权利要求1所述的方法，所述频谱资源管理服务器确定为所述第一前端设备分配的第一频谱资源之前，所述方法还包括：
    所述频谱资源管理服务器识别发起所述带宽分配请求的第一前端设备，并确定与该第一前端设备共缆传输信号的第二前端设备。
  4. 根据权利要求1所述的方法，其中，所述第一前端设备向所述频谱资源管理服务器发送带宽分配请求之前，所述第一前端设备接收用户端设备发送的用户上网请求；以及
    所述第一前端设备根据所述用户上网请求确定上网所需带宽，并生成所述带宽分配请求。
  5. 根据权利要求1-4任一所述的方法，其中，所述频谱资源包括频谱带和微时隙，以及所述带宽分配请求中包括上网所需频谱带和微时隙。
  6. 一种信号共缆传输系统，包括：频谱资源管理服务器、第一前端设备和用户端设备；其中，
    所述频谱资源管理服务器，与所述第一前端设备连接，设置为接收所述第一前端设备发送的带宽分配请求；根据所述带宽分配请求，以及已为所述第一前端设备和与所述第一前端设备共缆传输信号前端设备分配的预设频谱资源，确定为所述第一前端设备分配的第一频谱资源；以及将所述第一频谱资源发送给所述第一前端设备，以指示所述第一前端设备使用所述第一频谱资源与用户端设备传输信号；
    所述第一前端设备，分别与所述频谱资源管理服务器和所述用户端设备连接，设置为向所述频谱资源管理服务器发送所述带宽分配请求，接收所述第一频谱资源，并利用所述第一频谱资源与所述用户端设备传输信号；以及
    所述用户端设备设置为与所述第一前端设备传输信号。
  7. 根据权利要求6所述的系统，其中：
    所述第一前端设备包括：电缆调制解调器终端系统CMTS和通信线路终端CLT中的至少一类；
    所述第二前端设备包括：电缆调制解调器终端系统CMTS和通信线路终端CLT中的至少一类；以及
    所述用户端设备包括电缆调制解调器CM和同轴电缆网络单元CNU。
  8. 根据权利要求6所述的系统，其中，所述频谱资源管理服务器还设置为：
    确定为所述第一前端设备分配的第一频谱资源之前，识别发起所述带宽分 配请求的第一前端设备，并确定与所述第一前端设备共缆传输信号的所述第二前端设备。
  9. 根据权利要求6所述的系统，其中，所述第一前端设备还设置为向所述频谱资源管理服务器发送带宽分配请求之前，接收所述用户端设备发送的用户上网请求，根据所述用户上网请求确定上网所需带宽，并生成所述带宽分配请求。
  10. 根据权利要求9所述的系统，其中，所述频谱资源包括频谱带和微时隙，以及所述带宽分配请求中包括上网所需频谱带和微时隙。
  11. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行权利要求1-5中任一项的方法。
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