CN109995432A - A kind of signal processing apparatus and system - Google Patents
A kind of signal processing apparatus and system Download PDFInfo
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- CN109995432A CN109995432A CN201711483239.9A CN201711483239A CN109995432A CN 109995432 A CN109995432 A CN 109995432A CN 201711483239 A CN201711483239 A CN 201711483239A CN 109995432 A CN109995432 A CN 109995432A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/544—Setting up communications; Call and signalling arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/323—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
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- 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
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- 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
- H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
Abstract
The embodiment of the invention provides a kind of signal handling equipments.The equipment includes signal processing unit and signal interface unit, and the signal interface unit and the signal processing unit are independent two parts, and the two is connected by Active Interface, and the Active Interface is the pluggable interface of contact；The signal processing unit is used to carry out the signal received the parsing and scheduling of MAC layer；The signal interface unit is used to the signal of the signal processing unit processes being sent to infrastructure devices, or the signal received from infrastructure devices is sent to the signal processing unit and is handled.Additionally provide a kind of signal processing system.Utilize the system, it is only necessary to by the pluggable part replacement in the signal handling equipment in pairs in the signal interface unit of the corresponding transport protocol of transmission medium with regard to the demand of applicable different scenes.
Description
Technical field
The present invention relates to fields of communication technology, and more particularly, to a kind of signal processing apparatus and system.
Background technique
In existing communication system, before traditional multisystem operator (Multi System Operator, MSO) network uses
End/sub-headend, edge computer room, optical node (Fiber Node, FN), then arrive the system architecture of user.Edge computer room and optical node
Between connected by star-like point-to-point analog optical fiber, connected between optical node and user by tree-like coax network, it is this
The access net that optical fiber is mixed with coaxial cable is known as Hybrid Fiber Coax (Hybrid Fiber-Coax, HFC) network.MSO passes through
Hfc plant provides video traffic and broadband data service for user.
Hfc plant mainly realizes the conversion of photosignal by two ways, at present includes that coaxial cable ether is passive
Optical-fiber network agreement (Ethernet passive optical network Protocol over Coax, EPoC), upstream data
Flow external physical layer interface (Upstream External-PHY Interface, UEPI) and the external physical layer of downstream data flow
The technologies such as interface (Downstream External-PHY Interface, DEPI).
Data over cable service interface specifications (docs is) agreement (Data over cable service interface
Specifications, Docsis) it is one of application standard of hfc plant, 3.1 version of Docsis is retaining major part
Under the premise of media access control (Media Access Control, MAC) layer function of 3.0 version of Docsis, to physics
(physical, PHY) layer has carried out larger modification, and PHY layer uplink accesses (Orthogonal using orthogonal frequency division multiplexing
Frequency Division Multiplex Access, OFDMA) modulation system, downlink use OFDM.MAC layer and PHY layer
Between by downlink and uplink interfaces carry out signal exchange.
To adapt to different demands, there are also other networking plans, the Cable Modem Terminal System (Modulated of modulation
Cable Modem Termination System, M-CMTS) processing of downlink CMTS PHY layer and the processing of CMTS MAC layer are divided
It leaves and is placed on different positions, or the processing of uplink and downlink CMTS PHY layer is separated with the processing of CMTS MAC layer simultaneously and is opened in
Different positions is connected between CMTS PHY layer processing unit and CMTS MAC layer processing unit by optical fiber.Every kind of networking side
Case needs to use specific CMTS PHY layer processing unit and CMTS MAC layer processing unit.
Summary of the invention
The embodiment of the invention provides a kind of signal processing apparatus and systems, are able to solve a kind of CMTS PHY layer processing dress
Setting must be useful in specific scene with CMTS MAC layer processing unit, waste caused by avoiding hardware resource not general.
The embodiment of the present application in a first aspect, providing a kind of signal handling equipment, control by specially a kind of distant end media access
Preparative layer processing equipment RMD, multi-upstream access upper layer network fringe node, downlink connects distal end physical layer process equipment RPD, described
RMD includes signal processing unit and signal interface unit, and the signal interface unit and the signal processing unit are independent
Two parts, the two are connected by Active Interface, and the Active Interface is the pluggable interface of contact, such as threaded socket, gold
Belong to elastic slice or buckle contact socket；The signal processing unit is used to carry out the signal received parsing and the tune of MAC layer
Degree；The signal interface unit is used to the signal of the signal processing unit processes being sent to infrastructure devices, or will be under
The signal that layer equipment receives is sent to the signal processing unit and is handled.
In the first embodiment of the embodiment of the present application first aspect, the signal processing unit includes upstream Interface,
D and D/A converter and MAC Message Processing chip；Wherein, the upstream Interface is used to receive signal from upper layer device, or
Signal is sent to upper layer device；The D and D/A converter be used for signal carry out from analog to digital or from number to
The conversion of simulation；The MAC Message Processing chip is used to that MAC data message and MAC control message to be parsed and be dispatched.
In conjunction with the embodiment of the present application first aspect or the first embodiment of the embodiment of the present application first aspect, this Shen
Please be in second of embodiment of embodiment first aspect, the signal interface unit includes protocol adaptor and communication interface；
Wherein, the communication interface is for receiving or sending signal；The protocol adaptor is matched with what the communication interface was supported
Transport protocol, for handling the signal received from the signal processing unit, being adapted for the communication interface can be sent out
The signal sent, and the signal processing is sent to after the signal adaptation that the communication interface is received from infrastructure devices is handled
Unit.
In conjunction with the embodiment of the present application first aspect or the first embodiment of the embodiment of the present application first aspect, this Shen
The parsing of the MAC layer and cable data service interface rule please be scheduling in the third embodiment of embodiment first aspect
MAC layer Message Processing as defined in 3.1 agreement of model agreement DOCSIS 3.0 or DOCSIS.
The embodiment of the present application second aspect provides a kind of signal handling equipment, specially a kind of distal end physical layer process
Equipment RPD, uplink connect distant end media access control layer processing equipment RMD, and downlink connects CM, and the RPD includes at signal
Unit and signal interface unit are managed, the signal interface unit and the signal processing unit are independent two parts, and the two is logical
Active Interface connection is crossed, the Active Interface is the pluggable interface of contact, such as threaded socket, and metal clips or buckle connect
Touch socket；The signal interface unit is used to the signal of the signal processing unit processes being sent to upper layer device, or
The signal received from upper layer device is sent to the signal processing unit to handle.
In the first embodiment of the embodiment of the present application second aspect, the signal processing unit is used for receiving
Signal carries out the modulation /demodulation processing of PHY layer.
In conjunction with the embodiment of the present application second aspect or the first embodiment of the embodiment of the present application second aspect, at this
In the third embodiment for applying for embodiment second aspect, the signal interface unit includes that protocol adaptor and communication connect
Mouthful；Wherein, the communication interface is for receiving or sending signal；The protocol adaptor is matched with the communication interface and is supported
Transport protocol be adapted for the communication interface energy for handling the signal received from the signal processing unit
The signal of transmission；And the letter is sent to by described after the processing of signal adaptation that the communication interface is received from upper layer device
Number processing unit.
In conjunction with the embodiment of the present application second aspect or the first embodiment of the embodiment of the present application second aspect, this Shen
Please be in second of embodiment of embodiment second aspect, the signal processing unit includes downstream interface, modulus/digital-to-analogue conversion
Device and PHY Message Processing chip；Wherein, the upstream Interface is used to receive signal from upper layer device, or sends out to upper layer device
The number of delivering letters；The D and D/A converter is used to carry out from analog to digital or from the conversion of digital to analogy signal；Institute
MAC Message Processing chip is stated for being modulated demodulation process to MAC data message and MAC control message.
In conjunction with the embodiment of the present application second aspect or the first embodiment of the embodiment of the present application second aspect, this Shen
Please be in the third embodiment of embodiment second aspect, the modulation /demodulation processing of the PHY layer is cable data service interface
The processing of PHY layer modulation /demodulation as defined in 3.1 agreement of specification protocol DOCSIS 3.0 or DOCSIS.
The embodiment of the present application third aspect provides a kind of signal processing system, comprising: RMD and RPD, wherein the RMD
Foregoing MAC layer signal handling equipment, the foregoing PHY layer signal handling equipment of RPD；Letter in the RMD
Signal interface unit in number interface unit and the RPD support identical interface protocol, the RMD and the RPD by with
The corresponding communication media of the interface protocol is connected.
Using the embodiment of the present invention, the signal processing apparatus for carrying out MAC or PHY layer processing all has pluggable or replacement
Its internal communication interface bascule, pass through the communication interface mould that same agreement is supported in the insertion in signal processing apparatus
Block realizes that two equipment uploads the number of delivering letters, waste caused by avoiding hardware resource not general in corresponding transmission medium.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described.
Fig. 1 is a kind of schematic network structure；
Fig. 2 is a kind of schematic network structure provided in an embodiment of the present invention；
Fig. 3 is a kind of signal processing apparatus structural schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another signal processing apparatus structural schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of signal processing method flow diagram provided in an embodiment of the present invention；
Fig. 6 is another signal processing method flow diagram provided in an embodiment of the present invention.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing.
As shown in Figure 1, being a kind of existing schematic network structure.In the network structure, cable modem is whole
The part MAC of end system CMTS is used as two autonomous devices to be kept completely separate with the part PHY, and CMTS MAC equipment can be placed in center
Computer room or curbside website are connected by the CMTS PHY device of optical fiber and distal end, and CMTS PHY device uses distributed frame, can
To be disposed in proximity to the building of subscriber household downstairs in corridor, each CMTS PHY device passes through coaxial cable connection one respectively
Determine the cable modem (Cable modem, CM) of data volume.It should be noted that the CMTS MAC equipment and CMTS
The position of PHY device can have other variations, as long as CMTS PHY device is with respect to CMTS MAC equipment closer to user.
In network structure shown in FIG. 1, user terminal downlink data is answered by optical fiber by wavelength-division by CMTS MAC equipment
It is sent to CMTS PHY device with the mode of (WDM), the demodulation of CMTS PHY device, decoding obtain original downlink data, re-encode,
Original downlink data is converted to coaxial signal and is sent to each CM by modulation, and coaxial signal is sent to user equipment again by CM
(such as set-top box and/or PC)；User equipment sends upstream data, is transferred to CMTS PHY by coaxial cable by CM
Equipment is demodulated at CMTS PHY device, is decoded, and then coaxial signal is converted fiber-optic signal by coding, modulation, then by CMTS
PHY device is sent to CMTS MAC equipment.Time division multiple acess (Time is used between CMTS MAC equipment and CMTS PHY device
Division Multiple Address, TDMA) mode.
As shown in Fig. 2, being a kind of schematic network structure provided in an embodiment of the present invention.In the network structure, CMTS
The part MAC also separate with the part PHY in different location, be referred to as distant end media access in the present embodiment and other embodiments
Control layer processing equipment (Remote MAC Device, RMD) and distal end physical layer process equipment (Remote PHY Device,
RPD).Since the processing of MAC and PHY layer can be handled respectively on one device by separation and respectively, the present embodiment is further
Responsible signal in the equipment of this progress MAC layer processing or the equipment of progress PHY layer processing is sended and received substantially logical
Letter unit is separated.RMD and RPD in the present embodiment are different from comparing the CMTS MAC in network structure shown in FIG. 1
Equipment and CMTS PHY device, RMD and RPD in the present embodiment have its pluggable or replacement internal communication interface
Bascule supports the communication interface modules of same agreement by being inserted into RMD and RPD, realizes two equipment in correspondence
Transmission medium uploads the number of delivering letters.RMD so is also placed in central machine room, but passes through optical fiber, cable or wireless signal and distal end
The connection of RPD equipment, RPD connects CM by coaxial cable respectively again.
In the present embodiment, RMD is as shown in figure 3, include signal processing unit and signal interface unit, the signaling interface list
The first and described signal processing unit is independent two parts, and the two is connected by Active Interface, and the Active Interface is contact
Pluggable interface；
The signal processing unit is used to carry out the signal received the parsing and scheduling of MAC layer.
The signal processing unit specifically includes upstream Interface, modulus/digital-to-analogue (AD/DA) converter and MAC Message Processing
Chip；Wherein the upstream Interface is used to receive signal from upper layer device, or sends signal to upper layer device, for example can be
UEPI or DEPI interface；The ad/da converter is used to turn from analog to digital or from digital to analogy to signal
It changes；The MAC Message Processing chip is used to that MAC data message and MAC control message to be parsed and be dispatched.
Wherein, the parsing of the MAC layer and be scheduling to data over cable service interface specifications (docs is) agreement DOCSIS 3.0 or
MAC layer Message Processing as defined in 3.1 agreement of DOCSIS.
The signal interface unit is used to for the signal of the signal processing unit processes being sent to infrastructure devices, or will
The signal received from infrastructure devices is sent to the signal processing unit and is handled.
The signal interface unit specifically includes protocol adaptor and communication interface, and the communication interface is for receiving or sending out
The number of delivering letters, for example can be UEPI interface, DEPI interface, Ethernet interface or common public radio interface (common public
Radio interface, CPRI), the protocol adaptor is matched with the transport protocol that the communication interface is supported, being used for will
The signal received from the signal processing unit is handled, and the signal that the communication interface can be sent is adapted for；And it will
The signal processing unit is sent to after the signal adaptation processing that the communication interface is received from infrastructure devices.The UEPI connects
Mouthful, DEPI interface and CPRI interface correspondence be UEPI signal receiver and transmitter, DEPI signal receiver and transmitter, and
CPRI signal receiver, transmitter and antenna.
In the present embodiment, RPD is as shown in figure 4, include signal processing unit and signal interface unit, the signaling interface list
The first and described signal processing unit is independent two parts, and the two is connected by Active Interface, and the Active Interface is contact
Pluggable interface；
The signal interface unit is used to for the signal of the signal processing unit processes being sent to upper layer device, or will
The signal received from upper layer device is sent to the signal processing unit and is handled.
The signal interface unit specifically includes protocol adaptor and communication interface, and the communication interface is for receiving or sending out
The number of delivering letters, for example can be UEPI interface, DEPI interface, Ethernet interface or common public radio interface CPRI, the agreement
Adapter is matched with the transport protocol that the communication interface is supported, the signal for will receive from the signal processing unit
It is handled, is adapted for the signal that the communication interface can be sent；And receive the communication interface from upper layer device
The signal processing unit is sent to after signal adaptation processing.
The modulation /demodulation that the signal processing unit is used to carry out the signal received PHY layer is handled.
The signal processing unit specifically includes downstream interface, modulus/digital-to-analogue (AD/DA) converter and PHY Message Processing
Chip；Wherein the upstream Interface is used to receive signal from upper layer device, or sends signal to upper layer device, for example can be
UEPI or DEPI interface；The ad/da converter is used to turn from analog to digital or from digital to analogy to signal
It changes；The modulation /demodulation that the PHY Message Processing chip is used to carry out message PHY layer is handled.
The modulation /demodulation processing of the PHY layer is data over cable service interface specifications (docs is) agreement DOCSIS 3.0 or DOCSIS
The processing of PHY layer modulation /demodulation as defined in 3.1 agreements.
After RMD and RPD is all inserted into the signal interface unit for supporting same agreement, it can be connected with corresponding transmission medium
RMD and RPD；For example, coaxial cable can be used after RMD and RPD are all inserted into the signal interface unit for supporting UEPI or DEPI interface
It connects RMD and RPD and carries out signal transmission；After RMD and RPD is all inserted into the signal interface unit for supporting Ethernet interface, it can use
Optical fiber connects RMD and RPD and carries out signal transmission；It, can be in RMD after RMD and RPD is all inserted into the signal interface unit for supporting CPRI
Wireless signal transmission is carried out between RPD.This, which allows, avoids a kind of CMTS PHY or MAC equipment in the prior art and can only dispose
With the limitation of single scene, different scenes only need the pluggable part replacement in RMD and RPD corresponding in transmission medium in pairs
The signal interface unit of transport protocol, and the other component in RMD and RPD is generally applicable.
It should be noted that can not be interpreted as only includes the component come listed by Fig. 3 and Fig. 4 in the RMD and RPD,
It, may also other signal processing apparatus, such as function in the RMD and RPD other than the component come listed by Fig. 3 and Fig. 4
Other signal processing auxiliary units such as rate controller, time synchronism apparatus.
Below by taking the scene that RMD is connected with RPD by optical fiber as an example, in the downstream direction, as shown in figure 5, of the invention
One embodiment of the method provides a kind of signal processing method, including step 501-504, wherein
Step 501, RMD carries out MAC layer processing to the signal received；
The MAC layer processing is MAC layer Message Processing as defined in 3.1 agreement of DOCSIS 3.0 or DOCSIS；
Step 502, MAC layer treated signal conversion coating optical signal is sent to RPD by optical fiber by the RMD；
Step 503, after the RPD receives the optical signal, PHY layer processing is carried out；
The PHY layer processing is PHY layer Message Processing as defined in 3.1 agreement of DOCSIS 3.0 or DOCSIS；
Step 504, by treated, signal is sent to upstream device to the RPD；The upstream device is usually CM.
In the upstream direction, as shown in fig. 6, an embodiment of the method for the invention provides another signal processing method,
Including step 601-604, wherein
Step 601, RPD carries out PHY layer processing to the signal received；
The MAC layer processing is PHY layer Message Processing as defined in 3.1 agreement of DOCSIS 3.0 or DOCSIS；
Step 602, PHY layer treated signal conversion coating optical signal is sent to RMD by optical fiber by the RPD；
Step 603, after the RMD receives the optical signal, MAC layer processing is carried out；
The MAC layer processing is MAC layer Message Processing as defined in 3.1 agreement of DOCSIS 3.0 or DOCSIS；
Step 604, by treated, signal is sent to upstream equipment to the RMD.
The uplink and downlink process flow in scene that RMD and RPD is connected by wireless signal is similar with Fig. 5, Fig. 6's,
It only needs optical signal to be substituted for wireless signal.The essence for supporting this conversion is to be all inserted into support CPRI in RMD and RPD
Signal interface unit.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic is included at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot
Structure or characteristic can combine in any suitable manner in one or more embodiments.In various embodiments of the present invention, on
The size for stating the serial number of each process is not meant that the order of the execution order, the execution sequence Ying Yiqi function of each process and inherence
Logic determines that the implementation process of the embodiments of the invention shall not be constituted with any limitation.
The processing method for the realization concrete function mentioned in above-mentioned apparatus embodiment includes but is not limited in embodiment of the method
The alignment processing method of announcement；
In addition, the terms " system " and " network " are often used interchangeably herein.The terms " and/
Or ", only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, it can be with table
Show: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/" herein, typicallys represent front and back
Affiliated partner is a kind of relationship of "or".
It should be understood that in embodiments of the present invention, " B corresponding with A " indicates that B is associated with A, B can be determined according to A.But
It should also be understood that determining that B is not meant to determine B only according to A according to A, B can also be determined according to A and/or other information.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware
With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This
A little functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Specially
Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not
It is considered as beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is
The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or beg for
Opinion mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit
Or communication connection, it is also possible to electricity, mechanical or other form connections.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs
Purpose.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.
In short, being not intended to limit of the invention the foregoing is merely the preferred embodiment of technical solution of the present invention
Protection scope.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in
Within protection scope of the present invention.
Claims (9)
1. a kind of signal handling equipment, which is characterized in that including signal processing unit and signal interface unit, the signaling interface
Unit and the signal processing unit are independent two parts, and the two is connected by Active Interface, and the Active Interface is contact
The pluggable interface of formula；
The signal processing unit is used to carry out the signal received the parsing and scheduling of MAC layer；
The signal interface unit is used to the signal of the signal processing unit processes being sent to infrastructure devices, or will be under
The signal that layer equipment receives is sent to the signal processing unit and is handled.
2. equipment according to claim 1, which is characterized in that the signal processing unit includes upstream Interface, modulus/number
Mode converter and MAC Message Processing chip；Wherein,
The upstream Interface is used to receive signal from upper layer device, or sends signal to upper layer device；
The D and D/A converter is used to carry out from analog to digital or from the conversion of digital to analogy signal；
The MAC Message Processing chip is used to that MAC data message and MAC control message to be parsed and be dispatched.
3. equipment according to claim 1 or 2, which is characterized in that the signal interface unit include protocol adaptor and
Communication interface；Wherein,
The communication interface is for receiving or sending signal；
The protocol adaptor is matched with the transport protocol that the communication interface is supported, being used for will be from the signal processing unit
The signal received is handled, and is adapted for the signal that the communication interface can be sent, and by the communication interface from lower layer
The signal processing unit is sent to after the signal adaptation processing that equipment receives.
4. equipment according to claim 1 or 2, which is characterized in that the parsing of the MAC layer and be scheduling to cable data clothes
MAC layer Message Processing as defined in interface specification agreement DOCSIS 3.0 or 3.1 agreement of DOCSIS of being engaged in.
5. a kind of signal handling equipment, which is characterized in that including signal processing unit and signal interface unit, the signaling interface
Unit and the signal processing unit are independent two parts, and the two is connected by Active Interface, and the Active Interface is contact
The pluggable interface of formula；
The signal interface unit is used to the signal of the signal processing unit processes being sent to upper layer device, or will be from upper
The signal that layer equipment receives is sent to the signal processing unit and is handled；
The modulation /demodulation that the signal processing unit is used to carry out the signal received PHY layer is handled.
6. equipment according to claim 5, which is characterized in that the signal interface unit includes protocol adaptor and communication
Interface；Wherein,
The communication interface is for receiving or sending signal；
The protocol adaptor is matched with the transport protocol that the communication interface is supported, being used for will be from the signal processing unit
The signal received is handled, and the signal that the communication interface can be sent is adapted for；And by the communication interface from upper layer
It is described after the signal adaptation processing that equipment receives to be sent to the signal processing unit.
7. equipment according to claim 5 or 6, which is characterized in that the signal processing unit includes downstream interface, mould
Number/digital analog converter and PHY Message Processing chip；Wherein,
The upstream Interface is used to receive signal from upper layer device, or sends signal to upper layer device；
The D and D/A converter is used to carry out from analog to digital or from the conversion of digital to analogy signal；
The PHY Message Processing chip is for being modulated demodulation process to message.
8. equipment according to claim 5 or 6, which is characterized in that the modulation /demodulation processing of the PHY layer is cable data
The processing of PHY layer modulation /demodulation as defined in 3.1 agreement of service interface specification agreement DOCSIS 3.0 or DOCSIS.
9. a kind of signal processing system characterized by comprising RMD and RPD, wherein the RMD is as described in claim 1
Signal handling equipment, the RPD signal handling equipment as claimed in claim 5；Signal interface unit and institute in the RMD
State signal interface unit in RPD support identical interface protocol, the RMD and the RPD by with the interface protocol pair
The communication media answered is connected.
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| CN201711483239.9A CN109995432B (en) | 2017-12-29 | 2017-12-29 | Signal processing device and system |
| PCT/CN2018/109600 WO2019128376A1 (en) | 2017-12-29 | 2018-10-10 | Signal processing apparatus and system |
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| CN109995432B (en) | 2022-03-11 |
| WO2019128376A1 (en) | 2019-07-04 |
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