CN110417685B - Data transmission method and related device - Google Patents
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- H—ELECTRICITY
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- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/78—Architectures of resource allocation
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N7/24—Systems for the transmission of television signals using pulse code modulation
Abstract
The embodiment of the application discloses a management message transmission method, which is used for saving downlink bandwidth overhead and improving downlink data transmission rate. The method comprises the following steps: a first device receives a primary channel configuration message sent by a second device, wherein the primary channel configuration message is used for configuring at least two primary channels for the first device; the first device determines the at least two main channels according to the main channel configuration message, the similarity of Medium Access Control (MAC) management messages corresponding to the at least two main channels exceeds a preset threshold, and one main channel corresponds to one MAC management message; the first device receives a target MAC management message sent by the second device, wherein the target MAC management message is a MAC management message corresponding to any one of the at least two main channels; the first device copies the target MAC management message to each of the at least two primary channels for transmission.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a data transmission method and a related apparatus.
Background
In a Cable Modem Termination System (CMTS), an access platform management device, for example, a converged cable access platform center (CCAP-Core), is responsible for all functions except for a physical layer (PHY), including terminal traffic management and Media Access Control (MAC) layer management. The data conversion device is a common device in the CMTS, such as a Remote Physical Device (RPD), and is configured to parse a data frame according to a protocol, convert the data frame into an analog modulation signal, and transmit the analog modulation signal to a Cable Modem (CM) through a Radio Frequency (RF) line.
The RPD does not have the capability to process control frames such as MAC frames, which are broadcast by the CCAP-Core over multiple downlink channels to be sent to the CM.
In the above MAC frame broadcasting method, since the channel bandwidth of the downlink channel is limited, the MAC frame is broadcasted in multiple downlink channels, which occupies part of the downlink bandwidth, increases the overhead of the downlink bandwidth, and reduces the transmission rate of downlink data.
Disclosure of Invention
In view of this, a first aspect of the embodiments of the present application provides a management message transmission method, including: the method comprises the steps that a first device receives a main channel configuration message sent by a second device, wherein the main channel configuration message is used for configuring at least two main channels for the first device; the first device determines the at least two main channels according to the main channel configuration message, the similarity of Medium Access Control (MAC) management messages corresponding to the at least two main channels exceeds a preset threshold, and one main channel corresponds to one MAC management message; the first device receives a target MAC management message sent by the second device, wherein the target MAC management message is a MAC management message corresponding to any one of the at least two main channels and is used for controlling data transmission on the corresponding main channel; the first device copies the target MAC management message to each of the at least two primary channels for transmission.
According to the technical scheme, the embodiment of the application has the following advantages: for the MAC management messages with the similarity exceeding the preset threshold, the second device only sends one of the MAC management messages as a target MAC management message to the first device, and the first device copies the target MAC management message to all the main channels, so that when the second device sends the MAC management messages with the similarity exceeding the preset threshold on at least two main channels, the second device does not need to send the MAC management messages on at least two main channels, the information amount of the MAC management messages can be effectively reduced, the overhead of downlink data bandwidth is saved, and the transmission rate of downlink data is improved.
In an implementation manner of the first aspect, the determining, by the first device, the at least two primary channels according to the primary channel configuration message includes: the first device obtains the primary channel identifier from the primary channel configuration message; the first device determines the at least two primary channels based on the primary channel identification. The main channel can be accurately distinguished through the main channel identification so as to ensure that the main channel is accurately identified, so that the target MAC management message can be copied to the accurate main channel, and transmission errors are avoided.
In an implementation manner of the first aspect, the receiving, by the first device, the target MAC management message sent by the second device includes: the first device receives the target MAC management message transmitted by the second device through a broadcast channel. The target MAC management message is broadcasted through the broadcast channel, and other downlink data bandwidths can not be occupied, so that the overhead of the downlink data bandwidth is effectively reduced, and the transmission rate of the downlink data is improved.
In one implementation of the first aspect, before the first device copies the target MAC management message to each of the at least two primary channels for transmission, the method further includes: and the first device receives indication information sent by the second device, wherein the indication information is used for indicating that the similarity of the target MAC management message exceeds the preset threshold.
In one implementation manner of the first aspect, the MAC management message includes: an uplink bandwidth allocation message in a MAP format. On one hand, the information amount of the uplink bandwidth allocation message is larger, and the management message transmission method provided by the first aspect can effectively reduce the overhead of the downlink data bandwidth and improve the transmission rate of the downlink data. On the other hand, the downlink bandwidth allocation message in the MAP format has no associated downlink channel, the contents of the downlink bandwidth allocation message in the MAP format are almost the same, and the similarity can reach one hundred percent.
A second aspect of the embodiments of the present application provides a management message transmission method, including: if at least two MAC management messages with the similarity exceeding a preset threshold exist in the medium access control MAC management messages, the second equipment generates a main channel configuration message according to the at least two MAC management messages; the second device sends primary channel configuration information to the first device, wherein the primary channel configuration information is used for configuring at least two primary channels for the first device, and the at least two primary channels correspond to the at least two MAC management messages one to one; and the second equipment sends a target MAC management message to the first equipment, wherein the target MAC message is the MAC management message corresponding to any one of the at least two main channels.
In one implementation manner of the second aspect, the primary channel configuration message includes a primary channel identifier; the second device generates a primary channel configuration message according to the at least two MAC management messages, including: the second device marks the channels corresponding to the at least two MAC management messages to obtain the main channel identifier; the second device generates the primary channel configuration message according to the primary channel identifier.
In one implementation manner of the second aspect, the sending, by the second device, the target MAC management message to the first device includes: the second device determines the MAC management message corresponding to any one of the at least two main channels as the target MAC management message; the second device transmits the target MAC management message to the first device through a broadcast channel.
In one implementation manner of the second aspect, after the second device sends the target MAC management message to the first device, the method further includes: and the second device sends indication information to the first device, wherein the indication information is used for indicating that the similarity of the target MAC management message exceeds the preset threshold.
In one implementation manner of the second aspect, the MAC management message includes: an uplink bandwidth allocation message in a MAP format.
The technical effect of the second aspect is similar to that of the first aspect, and for the technical effect corresponding to any one implementation manner of the second aspect and the second aspect, reference may be made to the relevant description in the first aspect, and details are not repeated here.
A third aspect of the embodiments of the present application provides an apparatus, where the apparatus is a first device, and includes: a receiving module, configured to receive a primary channel configuration message sent by a second device, where the primary channel configuration message is used to configure at least two primary channels for the first device; receiving a target MAC management message sent by the second device, wherein the target MAC management message is a MAC management message corresponding to any one of the at least two main channels and is used for controlling data transmission on the at least two main channels; a determining module, configured to determine the at least two main channels according to the main channel configuration message, where a similarity of MAC management messages corresponding to the at least two main channels exceeds a preset threshold, and one main channel corresponds to one MAC management message; and the copying module is used for copying the target MAC management message to each of the at least two main channels for transmission.
In an implementation manner of the third aspect, the primary channel configuration message includes a primary channel identifier, and the determining module is specifically configured to: acquiring the primary channel identifier from the primary channel configuration message; the at least two primary channels are determined based on the primary channel identification.
In an implementation manner of the third aspect, the receiving module is specifically configured to: and receiving the target MAC management message sent by the second device through a broadcast channel.
In an implementation manner of the third aspect, the receiving module is further configured to: and receiving indication information sent by the second device, wherein the indication information is used for indicating that the similarity of the target MAC management message exceeds the preset threshold.
In one implementation manner of the third aspect, the MAC management message includes: an uplink bandwidth allocation message in a MAP format.
A fourth aspect of the embodiments of the present application provides an apparatus, where the apparatus is a second device, and the apparatus includes: the generating module is used for generating a main channel configuration message according to at least two MAC management messages if the similarity of the at least two MAC management messages exceeds a preset threshold value in the medium access control MAC management messages; a sending module, configured to send primary channel configuration information to a first device, where the primary channel configuration information is used to configure at least two primary channels for the first device, and the at least two primary channels correspond to the at least two MAC management messages one to one; and sending a target MAC management message to the first device, wherein the target MAC message is a MAC management message corresponding to any one of the at least two main channels.
In one implementation manner of the fourth aspect, the primary channel configuration message includes a primary channel identifier; the generation module is specifically configured to: marking channels corresponding to the at least two MAC management messages to obtain the main channel identification; and generating the main channel configuration message according to the main channel identifier.
In an implementation manner of the fourth aspect, the MAC management message corresponding to any one of the at least two primary channels is determined as the target MAC management message; the target MAC management message is transmitted to the first device over a broadcast channel.
In an implementation manner of the fourth aspect, the sending module is further configured to: and sending indication information to the first device, wherein the indication information is used for indicating that the similarity of the target MAC management message exceeds the preset threshold.
In one implementation manner of the fourth aspect, the MAC management message includes: an uplink bandwidth allocation message in a MAP format.
A fifth aspect of an embodiment of the present application provides an apparatus, where the apparatus is a first device, and includes: a processor, a memory, and a transceiver; the transceiver is used for executing receiving or transmitting operation; the memory is used for storing operation instructions; the processor is configured to execute the method for transmitting a management message according to any one of the first aspect above by invoking the operation execution.
A sixth aspect of the embodiments of the present application provides an apparatus, where the apparatus is a second device, and the apparatus includes: a processor, a memory, and a transceiver; the transceiver is used for executing receiving or transmitting operation; the memory is used for storing operation instructions; the processor is configured to execute the method for transmitting a management message according to any one of the second aspect by invoking the operation execution.
A seventh aspect of embodiments of the present application provides a computer storage medium, including: an operation instruction that, when executed on a computer, executes the method for transmitting a management message according to any one of the first aspect.
An eighth aspect of embodiments of the present application provides a computer storage medium, including: an operation instruction that, when executed on a computer, executes the management message transmission method according to any one of the second aspects.
A ninth aspect of embodiments of the present application provides a computer program product, which when run on a computer, causes the computer to execute the method for transmitting a management message according to any one of the first aspect.
A tenth aspect of embodiments of the present application provides a computer program product, when the computer program product runs on a computer, for causing the computer to execute the transmission method of the management message according to any one of the second aspects.
The technical effects of the second to tenth aspects are similar to the technical effects of the first aspect, and reference may be made to the related description in the first aspect, which is not repeated herein.
Drawings
FIG. 1 is a diagram of a CMTS system architecture according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an ethernet networking according to an embodiment of the present application;
fig. 3 is a schematic diagram of a PON networking according to an embodiment of the present application;
fig. 4 is a schematic diagram of an embodiment of a transmission method according to an embodiment of the present application;
fig. 5(a) is a MAP message format provided in an embodiment of the present application;
fig. 5(b) is another MAP message format provided in the embodiment of the present application;
fig. 5(c) is a diagram of another MAP message format provided in the embodiment of the present application;
fig. 6 is a schematic view of an application scenario of a transmission method according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a first apparatus provided in an embodiment of the present application;
fig. 8 is a schematic structural diagram of a second apparatus provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of another first device or second device provided in an embodiment of the present application.
Detailed Description
The embodiment of the application provides a management message transmission method, which is used for saving downlink bandwidth overhead and improving downlink data transmission rate.
The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiments of the present application are used in CMTS systems, particularly communication systems that are networked according to the remote-PHY standard. Fig. 1 is a system architecture diagram of a CMTS according to an embodiment of the present disclosure, as shown in fig. 1, a remote-PHY system includes: the network node comprises a CCAP-Core, an RPD and a CM or a Set Top Box (STB), wherein the CCAP-Core and the RPD are connected through a Converged Internet Network (CIN), and the CIN can be obtained by using Passive Optical Network (PON) networking or Ethernet external networking. The CCAP-Core is used to control hub access network transmissions between the headend and the hub, and to control fiber access network transmissions between the hub and the fiber nodes. The RPD is used to control the parsing of data frames in the fiber access network, and after being converted into analog modulation signals, the analog modulation signals are transmitted to the CM or STB through an RF line. Coax is an interface technology, and a Coax access network is an access network obtained by using the Coax interface technology. The Coax access network can be used as an RF circuit corresponding to the RPD to carry out signal transmission. The CM or STB is used to control Customer Premise Equipment (CPE), such as a network television, etc. In the remote-PHY system architecture, an uplink ethernet physical layer interface (UEPI) protocol is used for uplink data transmission, and a downlink ethernet physical layer interface (DEPI) protocol is used for downlink data transmission. Control plane messages between the CCAP-Core and the RPD are transmitted by adopting a General Control Plane (GCP) protocol.
The CIN network shown in fig. 1 is obtained by networking through a PON, and as for the networking mode of the CIN network, the CIN network in fig. 1 may also be obtained by an ethernet external networking, and a specific networking mode is similar to the networking mode of the PON, which is not described herein again.
When Ethernet networking access is adopted, a point-to-point transmission mode is adopted between the CCAP-Core and the RPD. Fig. 2 is a schematic diagram of an ethernet networking according to an embodiment of the present application, as shown in fig. 2, 4 MAC domains exist in a CCAP-Core, and one MAC domain corresponds to one PHY. When a PON network networking access is adopted, a point-to-multipoint transmission mode is generally adopted between the CCAP-Core and the RPD. Fig. 3 is a schematic diagram of a PON networking according to an embodiment of the present application, as shown in fig. 3, a plurality of MAC domains exist in a CCAP-Core, and one MAC domain corresponds to two PHYs.
Compared with the existing transmission method of the MAC management message, the transmission method of the management message provided in the embodiment of the present application mainly has the following differences: in the embodiment of the application, the high similarity between the MAC management messages corresponding to the downlink channels is utilized, and for the MAC management messages with the high similarity, only one of the MAC management messages is sent to the first device, such as the RPD, in the sending process, and then the first device without management message processing capability copies the MAC management messages to the corresponding main channels and forwards the MAC management messages to the third device.
In order to facilitate understanding of the transmission method of the management message provided in the embodiment of the present application, the following describes in detail the transmission method in the embodiment of the present application with reference to a specific embodiment, where the first device takes the RPD as an example, and the second device takes the CCAP-CORE as an example.
Fig. 4 is a schematic diagram of an embodiment of a transmission method according to an embodiment of the present application.
As shown in fig. 4, a method for transmitting a management message provided in an embodiment of the present application includes:
401. and if at least two MAC management messages with the similarity exceeding a preset threshold exist, the CCAP-Core generates a main channel configuration message according to the at least two MAC management messages.
In one example, the primary channel configuration message includes a primary channel identification. If the CCAP-Core detects that the similarity of more than two MAC management messages exceeds a preset threshold in the MAC management messages corresponding to the downlink channels, the CCAP-Core marks the downlink channels corresponding to the more than two MAC management messages as main channels and stores corresponding main channel identifications. Further, the CCAP-Core generates the configuration information of the main channel according to the identification of the main channel.
It should be noted that the main channel configuration information may also carry other control information besides the main channel identifier, that is, for the purpose of saving downlink channel resources, the information obtained by carrying the main channel identifier to the other control information is the category of the main configuration information in the present application, and the other control information is not listed here.
It should be further noted that, in this embodiment, the GCP protocol may be extended, and a channel identification bit is added to identify the main channel and the common downlink channel. Specifically, the downlink channel may be a downlink single-carrier quadrature amplitude modulation (SC-QAM) channel and a downlink Orthogonal Frequency Division Modulation (OFDM) channel, and the main channel identifier is added to the downlink SC-QAM channel and the downlink OFDM channel to distinguish the main channel from the common downlink channel.
402. The CCAP-Core sends primary channel configuration information to the RPD.
The primary channel configuration message is for configuring a primary channel for the RPD, and the number of the primary channels is at least two. In the at least two main channels, one main channel corresponds to one MAC management message, and the similarity between the MAC management messages transmitted in the main channels exceeds a preset threshold, for example, the preset threshold may be 0.5, 0.8, 0.9, and the like.
In one example, the MAC management message includes an uplink channel assignment message formatted in a MAP format. The uplink channel allocation messages in the MAP format do not have associated downlink channels, and the corresponding uplink channel allocation messages in each downlink channel are identical, and the similarity reaches one hundred percent. In the transmission process, the RPD does not need to have the processing capability of the MAC layer, and only needs to copy the uplink channel assignment message on each downlink channel.
Fig. 5(a) is a MAP message format provided in an embodiment of the present application; fig. 5(b) is another MAP message format provided in the embodiment of the present application; fig. 5(c) is a diagram of another MAP message format provided in the embodiment of the present application. Three MAP message formats without associated downlink channels are shown in fig. 5(a), 5(b) and 5(c), each of which is 8 bytes. One common MAP message format is shown in fig. 5(a), where the number of information elements is 8 bits (16-23 bits) and the reserved bits are 8 bits (24-31 bits). One non-probe MAP message format is shown in fig. 5(b), which differs from the MAP message format in fig. 5(a) in that: the number of information elements in fig. 5(b) is 9 bits (16-24 bits), the reserved bits are 3 bits (25-27 bits), and the ACT bits, which are 4 bits (28-31 bits), are newly added. One probe MAP message format is shown in fig. 5(c), which differs from the MAP message format in fig. 5(b) in that: the message elements in fig. 5(c) are probe message elements and there is no acknowledgement time, correction offset, and data offset. The MAC management message header and the MAP message element shown in fig. 5(a), 5(b) and 5(c) above each generally occupy 2 bytes, and the probe message element generally occupies 4 bytes, but the number of bytes may be adjusted according to actual circumstances.
403. The RPD determines at least two primary channels from the primary channel configuration message.
The RPD receives the primary channel configuration message sent by the CCAP-Core. And the RPD analyzes the main channel configuration message and determines at least two main channels from the downlink channels.
In one example, the RPD determines, through a primary channel identifier carried in the primary channel configuration message, a channel with a valid primary channel identifier in a downlink channel as a primary channel.
404. The CCAP-Core sends a target MAC management message to the RPD.
The target MAC management message is any one of the respective MAC management messages whose similarity exceeds a predetermined threshold. The CCAP-CORE sends the target MAC management message to the RPD over the downlink channel.
In one example, the CCAP-Core marks the target MAC management message as a broadcast message, and thus sends the target MAC management message to the RPD using a broadcast channel.
It should be noted that, besides the broadcast channel transmitting the target MAC management message, the CCAP-Core may also use other downlink channels to transmit the target MAC management message.
405. The CCAP-Core sends indication information to the RPD.
The indication information may be used to indicate that the similarity of the target MAC management message exceeds a preset threshold, so as to indirectly instruct the RPD to copy the target MAC management message to each of the primary channels. Alternatively, the indication message may directly instruct the RPD to copy the target MAC management message to each of the primary channels.
The CCAP-Core may send the indication message to the RPD separately before or after the target management message is sent, or the CCAP-Core may send the target management message to the RPD together with the indication message.
406. The RPD copies the target MAC management message onto the at least two primary channels and forwards the target MAC management message to the third device.
In one example, the RPD receives the target MAC management message from the broadcast channel, copies the target MAC management message onto the respective primary channel, and forwards the target MAC management message to a third party device, such as a CM or STB, via the primary channel. Alternatively, the target MAC management message may be an uplink bandwidth allocation message in a MAP format.
In this embodiment, for the MAC management messages with similarity exceeding the preset threshold, the CCAP-Core only sends one of the MAC management messages as a target MAC management message to the RPD, and the RPD copies the target MAC management message to all the main channels for forwarding, so that when the CCAP-Core sends the MAC management messages with similarity exceeding the preset threshold on at least two main channels, the CCAP-Core does not need to send the MAC management messages on at least two main channels, and thus the information amount of the MAC management messages can be effectively reduced, the overhead of downlink data bandwidth is saved, and the downlink data transmission rate is improved.
It should be noted that the transmission method of the management message in this embodiment may be used in the two networking manners shown in fig. 2 and fig. 3. In addition, the method provided in the embodiment of the present application is applicable to, but not limited to, a CMTS system under a remote-PHY system architecture, and may also be used in other similar communication scenarios.
An application scenario of the management message transmission method in the embodiment of the present application applied to a CMTS system under a remote-PHY system architecture is described with reference to the architecture diagram in fig. 1.
As shown in fig. 6, an application scenario diagram provided in the embodiment of the present application includes:
601. the CCAP-Core sends primary channel configuration information to the RPD.
The main channel configuration information carries N main channel identifiers, so as to mark N downlink channels as main channels.
602. The CCAP-Core sends a MAP message to the RPD over the broadcast channel.
The MAP message is a MAP message in any one of the formats shown in fig. 5(a), 5(b) and 5(c) described above.
603. The RPD sends MAP messages to the CM in the N primary channels.
And the MAP message received by the RPD broadcast channel is assigned to the N main channels indicated by the main channel configuration information and is sent to the CM, wherein N is an integer greater than or equal to 2.
It should be noted that, specific technical features related in the application scenario corresponding to fig. 6 are, for example and without limitation, already described in detail in the transmission method of the management message in fig. 4, and are not described again here.
Fig. 7 is a schematic structural diagram of a first device according to an embodiment of the present application.
As shown in fig. 7, the first device includes:
a receiving module 701, configured to receive a primary channel configuration message sent by a second device, where the primary channel configuration message is used to configure at least two primary channels for a first device; receiving a target MAC management message sent by the second device, wherein the target MAC management message is a MAC management message corresponding to any one of the at least two main channels and is used for controlling data transmission on the at least two main channels;
a determining module 702, configured to determine at least two main channels according to the main channel configuration message, where a similarity of MAC management messages corresponding to the at least two main channels exceeds a preset threshold, and one main channel corresponds to one MAC management message;
a copying module 703, configured to copy the target MAC management message to each of the at least two main channels for sending.
In an example, the primary channel configuration message includes a primary channel identifier, and the determining module 702 is specifically configured to: acquiring a main channel identifier from a main channel configuration message; at least two primary channels are determined according to the primary channel identifiers.
In an example, the receiving module 701 is specifically configured to: and receiving the target MAC management message sent by the second equipment through a broadcast channel.
In one example, the receiving module 701 is further configured to: and receiving indication information sent by the second device, wherein the indication information is used for indicating that the similarity of the target MAC management message exceeds a preset threshold.
In one example, the MAC management message includes: an uplink bandwidth allocation message in a MAP format.
It should be noted that, specific technical features related to the first device in fig. 7 are described in detail in, for example, but not limited to, the management message transmission method in fig. 4, and are not described again here.
Fig. 8 is a schematic structural diagram of a second apparatus according to an embodiment of the present application.
As shown in fig. 8, the second apparatus includes: a generating module 801, configured to generate a main channel configuration message according to at least two MAC management messages if at least two MAC management messages with similarity exceeding a preset threshold exist in the MAC management messages for medium access control;
a sending module 802, configured to send primary channel configuration information to a first device, where the primary channel configuration information is used to configure at least two primary channels for the first device, and the at least two primary channels correspond to the at least two MAC management messages one to one; and sending a target MAC management message to the first device, wherein the target MAC message is a MAC management message corresponding to any one of the at least two main channels.
In one example, the primary channel configuration message includes a primary channel identification; the generating module 801 is specifically configured to: marking channels corresponding to at least two MAC management messages to obtain a main channel identifier; and generating a main channel configuration message according to the main channel identifier.
In one example, the sending module 802 is specifically configured to: determining the MAC management message corresponding to any one of at least two main channels as a target MAC management message; the target MAC management message is sent to the first device over a broadcast channel.
In one example, the sending module 802 is further configured to: and sending indication information to the first device, wherein the indication information is used for indicating that the similarity of the target MAC management message exceeds a preset threshold.
In one example, the MAC management message includes: an uplink bandwidth allocation message in a MAP format.
It should be noted that, specific technical features related to the second device in fig. 8 are described in detail in, for example, but not limited to, the management message transmission method described in fig. 4, and are not described again here.
Fig. 9 is a schematic structural diagram of another first device or second device provided in an embodiment of the present application. The schematic diagram may represent the first device or the second device as shown in fig. 9. As shown in fig. 9, the first device or the second device includes: memory 901, processor 902, transceiver 903, and bus system 904; a bus system 904 for connecting the memory 901, the processor 902 and the transceiver 903; the transceiver 903 is configured to perform receiving or transmitting operations; the memory 902 is used for storing operation instructions; the processor 902 is used for calling the operation instructions in the memory 902 and executing the corresponding operations.
The processor 902 may also be referred to as a Central Processing Unit (CPU). Memory 901 may include both read-only memory and random access memory, and provides instructions and data to processor 902. A portion of the memory 901 may also include NVRAM. In a particular application, the various components of the device are coupled together by a bus system 904, which may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. But for the sake of clarity the various buses are labeled in the figure as bus system 904.
The method for transmitting the management message disclosed in the embodiments of the present application may be applied to the processor 902, or implemented by the processor 902. The processor 902 may be an integrated circuit chip having power consumption anomaly detection capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 902. The processor 902 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 901, and the processor 902 reads the information in the memory 901, and completes the steps of the above method in combination with the hardware thereof.
In addition, when the apparatus in fig. 9 is the first device in the embodiment of the present application, the processor 902 executes an operation corresponding to the first device in the above transmission method for a management message by calling an operation instruction in the memory 901. When the apparatus in fig. 9 is a second device in this application, the processor 902 executes an operation corresponding to the second device in the above-mentioned transmission method of the management message by calling an operation instruction in the memory 901.
It should be noted that, specific technical features related to the first device or the second device in fig. 9 are described in detail in, for example and without limitation, the management message transmission method described in fig. 4, and are not described again here.
The application also provides a computer storage medium, which includes an operation instruction, and when the operation instruction runs on a computer, the computer is enabled to execute an operation corresponding to the first device in the above method for transmitting the management message. When fig. 9 shows the first device, the computer storage medium may specifically be the above-mentioned memory 901.
The application also provides another computer storage medium, which includes an operation instruction, and when the operation instruction runs on a computer, the computer is enabled to execute an operation corresponding to the second device in the above method for transmitting the management message. When fig. 9 shows the second device, the computer storage medium may specifically be the above-mentioned memory 901.
The present application also provides a computer program product, when the computer program product runs on a computer, so as to enable the computer to execute the operation corresponding to the first device in the management message transmission method.
The present application also provides another computer program product, when the computer program product runs on a computer, to make the computer execute the operation corresponding to the second device in the management message transmission method as described above.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions described in accordance with the present application are generated, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the technical solution scope of the embodiments of the present application.
Claims (22)
1. A method of data transmission, comprising:
a first device receives a primary channel configuration message sent by a second device, wherein the primary channel configuration message is used for configuring at least two primary channels for the first device;
the first device determines the at least two main channels according to the main channel configuration message, the similarity of Medium Access Control (MAC) management messages corresponding to the at least two main channels exceeds a preset threshold, the preset threshold is greater than or equal to 0.5, and one main channel corresponds to one MAC management message;
the first device receives a target MAC management message sent by the second device, wherein the target MAC management message is a MAC management message corresponding to any one of the at least two main channels and is used for controlling data transmission on the at least two main channels;
the first device copies the target MAC management message to each of the at least two primary channels for transmission.
2. The method of claim 1,
the primary channel configuration message includes a primary channel identifier, and the first device determines the at least two primary channels according to the primary channel configuration message, including:
the first device acquires the primary channel identifier from the primary channel configuration message;
and the first equipment determines the at least two main channels according to the main channel identification.
3. The method of claim 1,
the first device receives a target MAC management message sent by the second device, including:
and the first equipment receives the target MAC management message sent by the second equipment through a broadcast channel.
4. The method of claim 1, wherein before the first device copies the target MAC management message to each of the at least two primary channels for transmission, the method further comprises:
and the first equipment receives indication information sent by the second equipment, wherein the indication information is used for indicating that the similarity among the target MAC management messages exceeds the preset threshold value.
5. The method according to any of claims 1 to 4, wherein the MAC management message comprises: an uplink bandwidth allocation message in a MAP format.
6. A method of data transmission, comprising:
if at least two MAC management messages with the similarity exceeding a preset threshold exist in the medium access control MAC management messages, wherein the preset threshold is more than or equal to 0.5, the second equipment generates a main channel configuration message according to the at least two MAC management messages;
the second device sends primary channel configuration information to a first device, wherein the primary channel configuration information is used for configuring at least two primary channels for the first device, and the at least two primary channels correspond to the at least two MAC management messages one to one;
and the second equipment sends a target MAC management message to the first equipment, wherein the target MAC management message is a MAC management message corresponding to any one of the at least two main channels.
7. The method of claim 6,
the primary channel configuration message comprises a primary channel identifier; the second device generates a primary channel configuration message according to the at least two MAC management messages, including:
the second device marks channels corresponding to the at least two MAC management messages to obtain the main channel identification;
and the second equipment generates the main channel configuration message according to the main channel identifier.
8. The method of claim 6,
the second device sending a target MAC management message to the first device, including:
the second device determines the MAC management message corresponding to any one of the at least two main channels as the target MAC management message;
the second device sends the target MAC management message to the first device over a broadcast channel.
9. The method of claim 6, wherein after the second device sends the target MAC management message to the first device, the method further comprises:
and the second equipment sends indication information to the first equipment, wherein the indication information is used for indicating that the similarity among the target MAC management messages exceeds the preset threshold value.
10. The method according to any of claims 6 to 9, wherein the MAC management message comprises: an uplink bandwidth allocation message in a MAP format.
11. An apparatus for communication, the apparatus being a first device comprising:
a receiving module, configured to receive a primary channel configuration message sent by a second device, where the primary channel configuration message is used to configure at least two primary channels for the first device; receiving a target MAC management message sent by the second device, wherein the target MAC management message is a MAC management message corresponding to any one of the at least two main channels, and the target MAC management message is used for controlling data transmission on the at least two main channels;
a determining module, configured to determine the at least two main channels according to the main channel configuration message, where a similarity of MAC management messages corresponding to the at least two main channels exceeds a preset threshold, where the preset threshold is greater than or equal to 0.5, and one main channel corresponds to one MAC management message;
and the copying module is used for copying the target MAC management message to each of the at least two main channels for sending.
12. The apparatus of claim 11, wherein the primary channel configuration message includes a primary channel identifier, and wherein the determining module is specifically configured to:
acquiring the main channel identifier from the main channel configuration message;
and determining the at least two main channels according to the main channel identification.
13. The apparatus of claim 11, wherein the receiving module is specifically configured to:
and receiving the target MAC management message sent by the second equipment through a broadcast channel.
14. The apparatus of claim 11, wherein the receiving module is further configured to:
and receiving indication information sent by the second device, wherein the indication information is used for indicating that the similarity between the target MAC management messages exceeds the preset threshold.
15. The apparatus according to any one of claims 11 to 14,
the MAC management message includes: an uplink bandwidth allocation message in a MAP format.
16. An apparatus for communication, the apparatus being a second device, comprising:
the generating module is used for generating a main channel configuration message according to at least two MAC management messages if the similarity of the at least two MAC management messages exceeds a preset threshold value, wherein the preset threshold value is greater than or equal to 0.5;
a sending module, configured to send primary channel configuration information to a first device, where the primary channel configuration information is used to configure at least two primary channels for the first device, and the at least two primary channels correspond to the at least two MAC management messages one to one; and sending a target MAC management message to the first device, wherein the target MAC management message is a MAC management message corresponding to any one of the at least two main channels.
17. The apparatus of claim 16,
the primary channel configuration message comprises a primary channel identifier; the generation module is specifically configured to:
marking channels corresponding to the at least two MAC management messages to obtain the main channel identification;
and generating the main channel configuration message according to the main channel identifier.
18. The apparatus of claim 16, wherein the sending module is specifically configured to:
determining the MAC management message corresponding to any one of the at least two main channels as the target MAC management message;
transmitting the target MAC management message to the first device over a broadcast channel.
19. The apparatus of claim 16, wherein the sending module is further configured to:
and sending indication information to the first device, wherein the indication information is used for indicating that the similarity among a plurality of target MAC management messages exceeds the preset threshold.
20. The apparatus of any one of claims 16 to 19,
the MAC management message includes: an uplink bandwidth allocation message in a MAP format.
21. An apparatus for communication, the apparatus being a first device comprising:
a processor, a memory, and a transceiver;
the transceiver is used for executing receiving or transmitting operation;
the memory is used for storing operation instructions;
the processor is configured to execute the data transmission method according to any one of claims 1 to 5 by calling the operation instruction.
22. An apparatus for communication, the apparatus being a second device, comprising:
a processor, a memory, and a transceiver;
the transceiver is used for executing receiving or transmitting operation;
the memory is used for storing operation instructions;
the processor is configured to execute the data transmission method according to any one of claims 6 to 10 by calling the operation instruction.
Priority Applications (2)
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| CN201810402069.5A CN110417685B (en) | 2018-04-28 | 2018-04-28 | Data transmission method and related device |
| PCT/CN2018/111873 WO2019205536A1 (en) | 2018-04-28 | 2018-10-25 | Method for transmitting management message and related apparatus |
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| CN201810402069.5A CN110417685B (en) | 2018-04-28 | 2018-04-28 | Data transmission method and related device |
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| CN1841989A (en) * | 2005-03-21 | 2006-10-04 | 美国博通公司 | Method and system for distributing high throughput bandwidth in a cable network |
| WO2012074878A2 (en) * | 2010-12-03 | 2012-06-07 | Interdigital Patent Holdings, Inc. | Methods, apparatus and systems for performing multi-radio access technology carrier aggregation |
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| US20020073431A1 (en) * | 2000-12-11 | 2002-06-13 | Adc Telecommunications, Inc. | Supporting multiple data channels in a cable modem termination system |
| US7194009B2 (en) * | 2001-04-14 | 2007-03-20 | John Wai Tsang Eng | Full-service broadband cable modem system |
| KR100897853B1 (en) * | 2006-12-06 | 2009-05-15 | 한국전자통신연구원 | Method and Apparatus for processing Downstream data packet in channel bonding |
| WO2015042959A1 (en) * | 2013-09-30 | 2015-04-02 | 华为技术有限公司 | Data transmission method, device and system |
| EP3282692B1 (en) * | 2015-04-30 | 2019-04-17 | Huawei Technologies Co., Ltd. | Uplink bandwidth allocation method, device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1841989A (en) * | 2005-03-21 | 2006-10-04 | 美国博通公司 | Method and system for distributing high throughput bandwidth in a cable network |
| WO2012074878A2 (en) * | 2010-12-03 | 2012-06-07 | Interdigital Patent Holdings, Inc. | Methods, apparatus and systems for performing multi-radio access technology carrier aggregation |
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| WO2019205536A1 (en) | 2019-10-31 |
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