CN110049512B

CN110049512B - Forward-transmission network data processing device and method

Info

Publication number: CN110049512B
Application number: CN201910325381.3A
Authority: CN
Inventors: 付永魁
Original assignee: Wuhan Hongxin Technology Development Co Ltd
Current assignee: Wuhan Hongxin Technology Development Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2022-08-02
Anticipated expiration: 2039-04-22
Also published as: CN110049512A

Abstract

The application provides a forwarding network data processing device and a method, wherein the device comprises: the processor comprises at least one high-speed forwarding interface and at least one low-speed forwarding interface, and comprises: a protocol frame processing module for: the method comprises the steps that data uploaded by a plurality of low-speed forward transmission interfaces are converged into a group of data to serve as first target data; selecting one of the high-speed forward transmission interfaces as a first target interface, and sending first target data to forward transmission network transmission equipment through the first target interface; and selecting one of the high-speed forward transmission interfaces as a second target interface, receiving data issued by the forward transmission network transmission equipment through the second target interface to serve as second target data, and finally distributing the second target data to the corresponding low-speed forward transmission interface. In the application, the interconnection problem between the low-speed forward interface of various wireless devices and the forward network transmission device can be effectively solved through the above mode.

Description

Forward-transmission network data processing device and method

Technical Field

The present application relates to the field of communications technologies, and in particular, to a device and a method for processing forwarding network data.

Background

With the further evolution of the wireless technology, the architecture of the wireless network access network has changed significantly, taking 4G technology and 5G technology as examples, the network architecture has evolved as shown in fig. 1, and the forwarding network also changes, and for the 4G technology, the forwarding network is a network between a baseband processing unit (BBU) and a radio frequency processing unit (RRU), the BBU and the RRU generally communicate directly through a dark optical fiber, and the forwarding interface follows the CPRI protocol; for 5G technology, the fronthaul network is a network between a Distribution Unit (DU) and an Active Antenna Unit (AAU), and the CU + DU infrastructure device communicates with the AAU through a fronthaul interface or the DU communicates with the AAU through a fronthaul interface.

With the evolution of the forwarding network, a BBU end, or a CU + DU end, or a DU end, or an RRU/AAU end generally arranges forwarding network transmission equipment with a higher transmission rate, and connects with a forwarding interface of the wireless network equipment. The stock 2G/3G/4G network has a large number of dark fiber CPRI lines, and the speed is from 614.4Mbit/s to 9830.4 Mbit/s; in addition, some CPRI lines use electrical ports and require special processing such as antenna dimensionality reduction and combining. The number of interfaces which can be provided by the forwarding network transmission equipment is limited and the interfaces are high-speed interfaces, so that the wireless equipment forwarding interface is directly connected with the forwarding network transmission equipment and cannot be realized in some occasions or the realization cost is too high.

Disclosure of Invention

In order to solve the foregoing technical problems, embodiments of the present application provide a device and a method for processing forwarding network data, so as to achieve the purposes of reducing the number of high-speed interfaces of forwarding network transmission equipment directly used by a wireless network device and improving the use efficiency of the high-speed interfaces of the forwarding network transmission equipment, and the technical scheme is as follows:

a fronthaul network data processing apparatus comprising: the processor, at least one high speed forwarding interface and at least one low speed forwarding interface, the processor includes:

a protocol frame processing module for:

processing data uploaded by a plurality of low-speed forward transmission interfaces and then converging the processed data into a group of data serving as first target data, wherein the data uploaded by the low-speed forward transmission interfaces are data sent by first base station equipment;

selecting one of the high-speed forwarding interfaces as a first target interface, and sending the first target data to forwarding network transmission equipment through the first target interface;

selecting one of the high-speed forwarding interfaces as a second target interface, receiving data issued by the forwarding network transmission equipment through the second target interface, and using the data as second target data, wherein the data issued by the forwarding network transmission equipment is data sent by second base station equipment;

the first base station device and the second base station device are different base station devices.

Preferably, the processor further comprises:

the data volume compression or decompression processing module is configured to, if the data sent by the first base station device or the second target data is service data, determine whether compression or decompression processing is required on the data sent by the first base station device or the second target data, and if so, perform compression or decompression processing on the data sent by the first base station device or the second target data;

a timing message processing and clock module, configured to, if the data sent by the first base station device or the second target data is a timing message, maintain clock synchronization between each part of the forwarding network data processing apparatus according to the timing message;

and the management module is configured to, if the data sent by the first base station device or the second target data is management data, analyze the management data to obtain ROE mapping control information, CPRI or eccri link management information, and configuration maintenance information required by the device OAM, perform ROE mapping control according to the ROE mapping control information, perform CPRI or eccri link management according to the CPRI or eccri link management information, and perform operation management on the forwarding network data processing apparatus according to the configuration maintenance information required by the device OAM.

Preferably, the processor further comprises:

a mapping or demapping module, configured to convert, if a transmission protocol of the low-speed forward interface associated with the second target interface is different from a transmission protocol of the second target interface, a format of the compressed or decompressed second target data into a format that conforms to the transmission protocol of the low-speed forward interface associated with the second target interface, and send the format-converted data to the low-speed forward interface associated with the second target interface;

and the mapping or demapping module is configured to, if the low-speed forwarding interface associated with the first target interface is different from the transmission protocol of the first target interface, convert a data format sent by the first base station device after compression or decompression processing into a transmission protocol format conforming to the first target interface, and send down format-converted data to the first target interface.

Preferably, the processor further comprises:

and the priority processing module is used for determining the transmission sequence of the data uploaded by the low-speed forwarding interfaces according to the preset data transmission priority, and the transmission sequence is used as the first target data.

A forwarding network data processing method is applied to a processor in a forwarding network data processing device, and the forwarding network data processing device further comprises: at least one high speed forwarding interface and at least one low speed forwarding interface, the method comprising:

Preferably, the method further comprises:

if the data sent by the first base station device or the second target data is service data, judging whether the data sent by the first base station device or the second target data needs to be compressed or decompressed, and if so, compressing or decompressing the data sent by the first base station device or the second target data;

if the data sent by the first base station equipment or the second target data is a timing message, keeping clock synchronization among all parts of the forwarding network data processing device according to the timing message;

if the data sent by the first base station equipment or the second target data is management data, analyzing the management data, analyzing and obtaining ROE mapping control information, CPRI or eCPRI link management information and configuration maintenance information required by equipment OAM, performing ROE mapping control according to the ROE mapping control information, performing CPRI or eCPRI link management according to the CPRI or eCPRI link management information, and performing operation management on the forwarding network data processing device according to the configuration maintenance information required by the equipment OAM.

Preferably, after the compressing or decompressing the data, the method further includes:

if the transmission protocol of the low-speed forward transmission interface associated with the second target interface is different from that of the second target interface, converting the format of the compressed or decompressed second target data into a format conforming to the transmission protocol of the low-speed forward transmission interface associated with the second target interface, and transmitting the format-converted data to the low-speed forward transmission interface associated with the second target interface;

if the transmission protocol of the low-speed forward transmission interface associated with the first target interface is different from that of the first target interface, converting the data format sent by the first base station equipment after compression or decompression processing into a transmission protocol format conforming to the first target interface, and sending the data after format conversion to the first target interface.

Preferably, the processing and aggregating the data uploaded by the plurality of low-speed forwarding interfaces into a group of data as the first target data includes:

and determining the transmission sequence of the data uploaded by the low-speed forwarding interfaces as first target data according to the preset data transmission priority.

Compared with the prior art, the beneficial effect of this application is:

in the application, a protocol frame processing module in a processor sends data to the forwarding network transmission device and receives data issued by the forwarding network transmission device, both based on the principle that one of the multiple high-speed forwarding interfaces is selected as a target interface and transmits data through the target interface, compared with the mode that each forwarding interface independently uploads data to the forwarding network transmission device or receives data issued by the forwarding network transmission device, the method reduces the number of high-speed interfaces of the forwarding network transmission device directly used by the wireless network device and improves the use efficiency of the high-speed interfaces of the forwarding network transmission device.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a diagram illustrating the evolution of a prior art network architecture;

fig. 2 is a schematic logical structure diagram of a forwarding network data processing apparatus provided in the present application;

FIG. 3 is a schematic diagram of a macro coverage scenario provided herein;

FIG. 4 is a schematic diagram of another macro coverage scenario provided herein;

FIG. 5 is a schematic diagram of yet another macro coverage scenario provided by the present application;

FIG. 6 is a schematic diagram of a room distribution application scenario provided by the present application;

fig. 7 is a schematic logical structure diagram of another forwarding network data processing apparatus provided in the present application;

fig. 8 is a schematic logical structure diagram of yet another forwarding network data processing apparatus provided in the present application;

fig. 9 is a schematic logical structure diagram of yet another forwarding network data processing apparatus provided in the present application;

fig. 10 is a schematic logical structure diagram of yet another forwarding network data processing apparatus provided in the present application;

fig. 11 is a flowchart of a forwarding network data processing method provided in the present application;

fig. 12 is a flowchart of another forwarding network data processing method provided in the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Wireless communication technologies have evolved to meet the increasing demand for bandwidth and reduce cost per bit for customers. Compared with the latest 5G technology and 4G technology, the channel bandwidth is larger and larger, and the data volume transmitted by the forwarding interface is larger and larger; in addition, the frequency band commonly used by 5G is a medium-high frequency band, the cell coverage is relatively small, the number of required base stations is relatively large, and the number of existing fronthaul interfaces is also increased rapidly. At present, the speed of a mainstream optical module is 10G, the cost of an optical module with the speed higher than 25G is high, and large-scale commercial use cannot be realized, the cost is higher and higher in a mode of adopting a Dark Fiber (Dark Fiber), a fronthaul network formed by the Dark Fiber is difficult to manage and lacks a direction of subsequent evolution, and a fronthaul networking mode with lower cost, easy management and a definite evolution direction needs to be considered.

For the reasons, the next generation of forward-transmission network interface standard is formulated to transmit an Ethernet-based data model with management functions supporting the scalability so as to support the integration of different manufacturer devices. There are two mainstream interface technologies, eCPRI and IEEE 1914. Whether eCPRI or IEEE1914, one main idea of standard formulation is that data between BBU and AAU/RRU is transmitted through standard transmission network based on Ethernet, the transmission network is constructed by adopting third-party equipment, and the corresponding transmission equipment, AAU and BBU should not have coupling and be independent equipment.

Currently, commercial next generation fronthaul network transmission equipment supports BBU and RRU/AAU to be accessed through a high-speed CPRI or eCPRI interface, and the access rate is currently mainly 25 Gbps; in addition, there is a high-speed ethernet transmission link between the transmission devices, such as two 100Gbps lines. When the fronthaul network transmission equipment is used, the optimal situation is that the CPRI/eCPRI interface of the AAU/RRU/BBU is directly connected to the transmission equipment. However, the stock 2G/3G/4G network has a large number of dark fiber CPRI lines, and the speed is from 614.4Mbit/s to 9830.4 Mbit/s; in addition, some CPRI lines use electrical ports and require processing such as antenna dimension reduction and combining. The access interfaces of the transmission equipment are limited in number and are high-speed interfaces, so that the CPRI/eCPRI interface of the wireless equipment is directly connected with the forward transmission equipment and cannot be realized in some occasions or the realization cost is high.

Based on the existing problems, the inventor proposes a forwarding network data processing device, which comprises: a processor and at least one high speed forwarding interface and at least one low speed forwarding interface, the processor comprising: a protocol frame processing module for: processing and converging data uploaded by a plurality of low-speed forward transmission interfaces into a group of data serving as first target data, wherein the data uploaded by the low-speed forward transmission interfaces are data sent by first base station equipment; selecting one of the high-speed forwarding interfaces as a first target interface, and sending the first target data to forwarding network transmission equipment through the first target interface; selecting one of the high-speed forwarding interfaces as a second target interface, receiving data issued by the forwarding network transmission equipment through the second target interface, and using the data as second target data, wherein the data issued by the forwarding network transmission equipment is data sent by second base station equipment; the first base station device and the second base station device are different base station devices.

Next, referring to fig. 2, a device for processing forwarding network data disclosed in an embodiment of the present application is described, which may include: the system comprises a processor 11, at least one high-speed forwarding interface 12 and at least one low-speed forwarding interface 13.

The processor in this embodiment may include: and a protocol frame processing module.

A protocol frame processing module, operable to:

processing and converging data uploaded by a plurality of low-speed forward transmission interfaces 13 into a group of data serving as first target data, wherein the data uploaded by the low-speed forward transmission interfaces 13 are data sent by first base station equipment;

selecting one of the high-speed forwarding interfaces 12 as a second target interface, receiving data issued by the forwarding network transmission equipment through the second target interface, and using the data as second target data, wherein the data issued by the forwarding network transmission equipment is data sent by a second base station equipment;

It should be noted that the transmission rate of the high-speed forwarding interface 12 is not less than the sum of the transmission rates of the plurality of low-speed forwarding interfaces 13.

It can be understood that, according to the installation relationship between the forwarding network data processing apparatus and the forwarding network transmission device, one of the high-speed forwarding interfaces 12 needs to be selected as the first target interface. Of course, it is also necessary to select one of the plurality of high-speed forwarding interfaces 12 as the second destination interface according to the installation relationship between the forwarding network data processing apparatus and the forwarding network transmission device.

In this embodiment, the transmission protocol of the forwarding interface is generally a CPRI protocol or an eccri protocol. Accordingly, the plurality of forwarding interfaces may include, but are not limited to: a CPRI forwarding interface and/or an eCPRI forwarding interface.

It is understood that the transmission protocol of the first target Interface may adopt a CPRI (Common Public Radio Interface) protocol or an eccri protocol. The eCPRI protocol may be understood as: the eCPRI is issued after CPRI, and is used for a common public radio interface protocol of a 5G wireless communication technology.

Since the plurality of low-speed forwarding interfaces 13 may include, but are not limited to: the CPRI forwarding interface and/or the eccri forwarding interface, therefore, a protocol frame format of data uploaded by the multiple low-speed forwarding interfaces 13 may be different from a protocol frame format supported by the first target interface, in this case, the protocol frame format of the first target data may be converted into a protocol frame format supported by the first target interface, and after the conversion, the data is sent to the forwarding network transmission device through the first target interface.

The protocol frame processing module may include, but is not limited to, a MAC frame processing module and a CPRI frame processing module for a transmission protocol that may be adopted by the low-speed forwarding interface 13 or the first target interface. The interface that the MAC frame processing module can support is an interface of the eccri protocol. The MAC frame processing module may be configured to aggregate data in the eCPRI protocol frame format into a group of data, which is used as first target data, and send the first target data to a forwarding network transmission device through the high-speed forwarding interface 12 of the eCPRI protocol. The interface that the CPRI frame processing module can support is an interface of the CPRI protocol. The CPRI frame processing module may be configured to aggregate data in the CPRI protocol frame format into a group of data, which is used as first target data, and send the first target data to the forwarding network transmission device through the high-speed forwarding interface 12 of the CPRI protocol.

Certainly, the MAC frame processing module is configured to aggregate data in the eCPRI protocol frame format into a group of data, and after the group of data is used as the first target data, if the first target data needs to be uploaded to the forwarding network transmission device through the high-speed forwarding interface 12 of the CPRI protocol, the first target data may be converted into the first target data conforming to the CPRI protocol by using an ROE mapping or demapping functional module of the processor, and the CPRI frame processing module uploads the first target data conforming to the CPRI protocol to the forwarding network transmission device through the high-speed forwarding interface 12 of the CPRI protocol.

Similarly, after the CPRI frame processing module is configured to aggregate data in the CPRI protocol frame format into a group of data, as first target data, if the first target data needs to be uploaded to the forwarding network transmission device through the high-speed forwarding interface 12 of the eccri protocol, the first target data may be converted into first target data conforming to the eccri protocol by using an ROE mapping or demapping function module of the processor, and the first target data conforming to the eccri protocol is uploaded to the forwarding network transmission device through the high-speed forwarding interface 12 of the eccri protocol by the MAC frame processing module.

When receiving the data sent by the forwarding network transmission device, in order to adapt to the transmission rate of the forwarding network transmission device, one of the high-speed forwarding interfaces 12 provided by the forwarding network data processing apparatus may be selected as a second target interface, and the data sent by the forwarding network transmission device is received through the second target interface.

And the data sent by the forwarding network transmission equipment is the data sent by the second base station equipment.

It should be noted that, when the transmission rate of the forwarding interface of the second base station device is not matched with the transmission rate of the forwarding network transmission device, the forwarding interface of the second base station device is also adapted to the forwarding network transmission device through the forwarding network data processing apparatus, and the process of data transmission between the second base station device and the forwarding network transmission device is the same as the process of data transmission between the first base station device and the forwarding network transmission device, which may refer to the processes in steps S11-S13, and is not described herein again.

Next, taking the application of the forwarding network data processing apparatus to different scenarios as an example, a forwarding network data processing method will be described:

for example, please refer to the macro coverage scenario shown in fig. 3, the ngfiHUB represents a forwarding network data processing apparatus corresponding to the present invention, for the macro coverage scenario, for a storage network (e.g., a 2G, 3G, or 4G network), interfaces between the RRU/AAU and the BBU are CPRI interfaces, the interface rates are different, and the ngfiHUB mainly performs service convergence and distribution between the RRU/AAU and the transmission forwarding network, the BBU and the transmission forwarding network. From the transmission direction from the RRU to the BBU, the ngfiHUB may aggregate data of the low-speed CPRI interface of the stock network into a group of data, as first target data, and upload the first target data to the fronthaul network through the high-speed CPRI interface, and the ngfiHUB may take data issued by the high-speed CPRI interface off the fronthaul network at the site where the BBU is located, as second target data, and distribute the second target data into data supported by the low-speed CPRI interface, so as to directly access the fronthaul interface (e.g., the CPRI interface) of the BBU;

from the transmission direction from the BBU to the RRU, the ngfiHUB may aggregate data of the low-speed CPRI interface of the inventory network into a set of data, which is used as first target data, and upload the first target data to the fronthaul network through the high-speed CPRI interface, and the ngfiHUB may take down data issued by the high-speed CPRI interface from the fronthaul network at the RRU/site location, which is used as second target data, and distribute the second target data into data supported by the low-speed CPRI interface, so as to directly access the fronthaul interface (e.g., CPRI interface) of the RRU.

It should be noted that the RRU shown in fig. 3 may also be replaced by an AAU.

Based on the method for processing the data of the fronthaul network disclosed in this embodiment, when the next generation fronthaul network is used to modify the stock network, the dark fiber directly connected to the fronthaul interface of the RRU/AAU or BBU may be removed, and the RRU/AAU or BBU may be respectively connected to the ngfiHUB to interact with the fronthaul network. For the newly-built network, as long as the interface between the RRU/AAU and the BBU (or DU) is a CPRI interface, the same processing can be performed.

Referring to the macro coverage scenario shown in fig. 4, in a case of a newly-built network, if an interface between an AAU and a DU is an eccri interface, a transmission direction from the AAU to the DU, and a data transmission process may refer to a data transmission process in the transmission direction from the RRU to the BBU in the macro coverage scenario shown in fig. 3, which is not described herein again; for the transmission direction from the DU to the AAU, the data transmission process may refer to the data transmission process in the transmission direction from the BBU to the RRU in the macro coverage scenario shown in fig. 3, which is not described herein again.

It should be noted that the AAU in fig. 4 may be replaced by an RRU, and the DU may be replaced by a BBU.

Referring to the macro coverage scenario shown in fig. 5, under the condition of a hybrid interface, that is, under the condition of both CPRI interface and eCPRI interface, on the occasion of small total capacity, a mode in which all low-speed interfaces converge into an eCPRI interface may be configured, and a high-speed interface of a transmission network device may be saved by interacting with a forward network through the high-speed eCPRI interface. Specifically, in the transmission direction from the RRU to the BBU, the ngfiHUB may aggregate data of the plurality of low-speed CPRI interfaces into a set of data, which is used as first target data, and/or aggregate data of the plurality of low-speed eccri interfaces into a set of data, which is used as first target data, and upload the first target data to the forwarding network transmission device through the high-speed eccri interface, and the ngfiHUB may take off data sent by the high-speed eccri interface from the forwarding network at the site where the BBU is located, which is used as second target data, and distribute the second target data into data supported by the low-speed CPRI interfaces, so as to directly access the forwarding interface (e.g., CPRI interface) of the BBU.

In the transmission direction from the BBU to the RRU, the ngfiHUB may receive data of a plurality of low-speed CPRI interfaces of the BBU, aggregate the data into a group of data, serve as first target data, and upload the first target data to the forwarding network transmission device through the high-speed eccri interface, and the ngfiHUB may take off data delivered by the high-speed eccri interface from the forwarding network at a site location where the RRU or the AAU is located, serve as second target data, and distribute the second target data into data supported by the low-speed CPRI interfaces or the low-speed eccri interfaces, so as to directly access the forwarding interfaces (e.g., CPRI interfaces) of the RRU or the AAU.

Certainly, under the condition of a hybrid interface, that is, under the condition that both CPRI interfaces and eccri interfaces exist, a low-speed CPRI interface can be configured to converge into a high-speed CPRI interface, interact with a fronthaul network, and configure a mode that a low-speed eccri interface converges into a high-speed eccri interface and interacts with the fronthaul network, at this time, the ngfiHUB needs to provide two interfaces to interconnect with fronthaul network transmission equipment.

Referring to the indoor distribution application scenario shown in fig. 6, the ngfiHUB may configure the low-speed CPRI interface of the pRRU to converge into a high-speed CPRI interface, and interact with the forward network, or configure the low-speed eccri interface of the pRRU to converge into a high-speed eccri interface, and interact with the forward network, or configure the low-speed CPRI interface of the pRRU to converge into a high-speed eccri interface, and interact with the forward network, or configure the low-speed eccri interface of the pRRU to converge into a high-speed CPRI interface, and interact with the forward network. For the transmission direction from the pRRU to the BBU, the data transmission process may refer to the data transmission process in the transmission direction from the RRU to the BBU in the macro coverage scenario shown in fig. 3, which is not described herein again; for the transmission direction from the BBU to the pRRU, the data transmission process may refer to the data transmission process in the transmission direction from the BBU to the RRU in the macro coverage scenario shown in fig. 3, and is not described herein again.

In the application, the protocol frame processing module in the processor sends data to the forwarding network transmission device and receives data sent by the forwarding network transmission device, based on the principle that one of the multiple high-speed forwarding interfaces 12 is selected as a target interface and data is transmitted through the target interface, compared with the mode that each forwarding interface independently uploads data to the forwarding network transmission device or receives data sent by the forwarding network transmission device, the number of high-speed interfaces of the forwarding network transmission device directly used by the wireless network device is reduced, and the use efficiency of the high-speed interfaces of the forwarding network transmission device is improved.

In another embodiment of the present application, another forwarding network data processing apparatus is introduced, and referring to fig. 7, the processor may further include: the device comprises a data volume compression or decompression processing module, a timing message processing and clock module and a management module.

And the data volume compression or decompression processing module is configured to determine whether the data sent by the first base station device or the second target data needs to be compressed or decompressed if the data sent by the first base station device or the second target data is service data, and compress or decompress the data sent by the first base station device or the second target data if the data sent by the first base station device or the second target data is required.

In this embodiment, the MAC frame processing module or the CPRI frame processing module may first determine a protocol frame format of the data sent by the first base station device or the second target data, and after determining the protocol frame format, determine the type of the data according to a message type in a frame header of the data sent by the first base station device or the second target data. If the Data is business Data (for example, the eCPRI Message Types in the eCPRI specification are Data of IQ Data, Bit Sequence, and Generic Data Transfer Types), it can be determined whether the Data needs to be compressed or decompressed.

If necessary, the data is compressed or decompressed.

Specifically, the data volume compression or decompression module may perform data compression or decompression processing on the traffic data in a designated manner under the control of a management module (e.g., ROE mapping control, CPRI or eccri link management, and OAM) of the processor. If so, performing data compression on the service data before sending the data to the forwarding network; and after receiving the data transmitted by the forward network, decompressing the data transmitted by the forward network.

If compression or decompression processing is not needed, the service data can be directly forwarded.

In this embodiment, the compression or decompression processing may include, but is not limited to: antenna dimension reduction, merging, blocking flowing Point Compression, blocking scaling Compression, mu-Law Compression.

And the timing message processing and clock module is configured to, if the data sent by the first base station device or the second target data is a timing message, maintain clock synchronization between each part of the forwarding network data processing apparatus according to the timing message.

Specifically, according to the timing message, the synchronization of the eccri data and the CPRI data transferred between the MAC frame processing module and the CPRI frame processing module can be maintained. For example, in a scenario where a low-speed CPRI interface and a low-speed eccri interface are mixed and used to be converged into a high-speed eccri interface, the CPRI frame processing module sends CPRI data to the MAC frame processing module, and synchronizes clocks of the CPRI data and the eccri data of the MAC frame processing module.

In this embodiment, the management module may specifically include: the system comprises a mapping control module, a CPRI or eCPRI link management module and an OAM module.

The mapping control module may be configured to perform ROE mapping control according to ROE mapping control information obtained by analyzing the management data.

The mapping control module performs ROE mapping control according to ROE mapping control information obtained by analyzing the management data, which can be understood as follows: configuring a mapping method and a mapping rule between CPRI protocol frames (such as IQ data, synchronization information, layer 1 in-band protocol, C & M data, protocol extension and manufacturer specific information) and corresponding eCPRI protocol frames according to the ROE mapping control information.

The CPRI or eccri link management module may be configured to perform CPRI or eccri link management according to the CPRI or eccri link management information obtained by analyzing the management data.

Specifically, performing CPRI or eccri link management according to the CPRI or eccri link management information obtained by analyzing the management data may include: control the mapping rules of the interfaces between the low-speed link and the high-speed link (e.g., between the low-speed CPRI interface and the high-speed eccri interface), set the interface attributes, and so on, such as which low-speed CPRI interfaces need to be associated with the high-speed eccri interface or whether the high-speed eccri interface is a base station near-end interface or a far-end interface.

The OAM module may be configured to perform operation management of the forwarding network data processing apparatus according to the configuration maintenance information required by the equipment OAM obtained by analyzing the management data.

The OAM module may perform operation management on the forwarding network data processing apparatus according to the configuration maintenance information required by the equipment OAM obtained by analyzing the management data, where the operation management includes: software upgrading and connection fault management IEEE802.1ag protocols of the forwarding network data processing device are managed.

In another embodiment of the present application, another forwarding network data processing apparatus is introduced, and referring to fig. 8, the processor may further include:

a mapping or demapping module, configured to convert, if the low-speed forwarding interface 13 associated with the second target interface is different from the transmission protocol of the second target interface, a format of the compressed or decompressed second target data into a format that conforms to the transmission protocol of the low-speed forwarding interface 13 associated with the second target interface, and send the format-converted data to the low-speed forwarding interface 13 associated with the second target interface;

the mapping or demapping module is configured to, if the low-speed forwarding interface 13 associated with the first target interface is different from the transmission protocol of the first target interface, convert a data format sent by the first base station device after compression or decompression processing into a transmission protocol format conforming to the first target interface, and send down format-converted data to the first target interface.

If the transmission protocol of the low-speed forward interface 13 associated with the second target interface is different from that of the second target interface, protocol conversion is required, and specifically, the format of the compressed or decompressed second target data may be converted into a format conforming to the transmission protocol of the low-speed forward interface 13 associated with the second target interface, and the format-converted data may be issued to the low-speed forward interface 13 associated with the second target interface.

In this embodiment, the mapping or demapping module may convert the format of the compressed or decompressed second target data into a format that conforms to the transmission protocol of the low-speed forwarding interface 13 associated with the second target interface, and send the format-converted data to the low-speed forwarding interface 13 associated with the second target interface. If the transmission protocol of the second target interface is the eccri and the transmission protocol of the low-speed forwarding interface 13 associated with the second target interface is the CPRI, the ROE mapping or demapping module converts the eccri format of the second target data after the compression or decompression processing into the CPRI format; or, if the transmission protocol of the second target interface is CPRI and the transmission protocol of the low-speed forwarding interface 13 associated with the second target interface is eccri, the ROE mapping or demapping module converts the CPRI format of the second target data after compression or decompression processing into the eccri format.

In another embodiment of the present application, another forwarding network data processing apparatus is introduced, and referring to fig. 9, the processor may further include:

and the priority processing module is configured to determine, according to a preset data sending priority, a sending sequence of data uploaded by the multiple low-speed forwarding interfaces 13, as the first target data.

In this embodiment, according to a preset data transmission priority, the transmission order of the data uploaded by the plurality of low-speed forwarding interfaces 13 is determined, and the Quality of Service (QoS) of the data with a high priority is ensured. Optionally, the priority processing module may store the data uploaded by the multiple low-speed forwarding interfaces 13 in different queues according to types, and then determine the sending order of the data in the multiple queues according to a preset data sending priority. For example, the data uploaded by the low-speed forwarding interfaces 13 includes eCPRI IQ data, OAM messages, and eCPRI one-way delay measurement timing messages, and the data are stored in different data queues, where the priority of the eCPRI one-way delay measurement timing message is highest, the priority of the eCPRI IQ data is next to the eCPRI IQ data, and the OAM messages are lowest, and after the service flow queuing and priority processing, the eCPRI one-way delay measurement timing message is sent out first, the priority of the eCPRIIQ data is next to the eCPRIIQ data, and the OAM is last.

Preferably, the detailed structure of the forwarding network data processing apparatus may be as shown in fig. 10, and as shown in fig. 10, the processor may include: the system comprises an MAC frame processing module, a data volume compression/decompression module, a CPRI frame processing module, a service flow queuing and priority processing module, an ROE mapping/demapping module, a timing message processing module, a clock module, an ROE mapping control module, a CPRI/eCPRI link management module, an OAM module, a high-speed eCPRI interface and a low-speed eCPRI interface which are connected with the MAC frame processing module, and a high-speed CPRI interface and a low-speed CPRI interface which are connected with the CPRI frame processing module.

Wherein, the MAC frame processing module and the CPRI frame processing module are concrete implementation modules of the protocol frame processing module in the foregoing embodiment, the traffic flow queuing and priority processing module is a concrete implementation of the priority processing module described in the foregoing embodiment, the ROE mapping/demapping module is a concrete implementation of the mapping or demapping module described in the foregoing embodiment, the time packet processing module and the clock module can be understood as a concrete implementation of the time packet processing and clock module in the foregoing embodiment, and the ROE mapping control module, the CPRI/eccri link management module, and the OAM module can be understood as concrete implementation modules of the management module in the foregoing embodiment, the high-speed eccri interface connected to the MAC frame processing module and the high-speed CPRI interface connected to the CPRI frame processing module are a specific implementation manner of the high-speed forwarding interface 12 in this embodiment.

Specifically, the MAC frame processing module receives a message sent by the eccri link in the receiving direction of the external interface and performs corresponding processing according to the type, if the message is service data, the message is sent to the data size compression/decompression module for further processing, if the message is a synchronization message such as a timing message, the synchronization message is sent to the timing message processing module for processing, and if the message is a management message, the management message is distributed to the ROE mapping control module, the CPRI & eccri link management module, and the OAM module for processing according to the message type; and the reverse transmission in the direction of the external interface is to select the corresponding eCPRI interface from the message after the service queuing and priority processing according to the clock beat controlled by the clock module to form an Ethernet frame format meeting the format requirement and transmit the Ethernet frame format.

The data volume compression/decompression module performs data compression or decompression processing on corresponding service data according to a specified mode under the control of a management module (such as ROE mapping control, CPRI & eCPRI link management and OAM). And if compression or decompression processing is not needed, transparently forwarding the service data.

The CPRI frame processing module aggregates a plurality of low-speed CPRI interface data into a high-speed CPRI interface and sends the high-speed CPRI interface according to the beat given by the clock module and the control of the management module, extracts and distributes the low-speed CPRI interface data to the data volume compression/decompression module, the ROE mapping/demapping module, the management module or the clock module according to the information of service/CM/synchronization and the like, multiplexes the service data from the ROE mapping/demapping module or the data volume compression/decompression module and the CM data from the management module according to a CPRI format, inserts the service data into the synchronous information and selects and sends the corresponding CPRI interface.

The ROE mapping/demapping module is mainly responsible for the mapping process and the reverse process of CPRI to ethernet frames.

The service flow queuing and priority processing mainly carries out priority processing on an eCPRI MAC frame which needs to be sent out, and ensures the QoS of high-priority services.

The timing message processing module is mainly responsible for processing a timing message, and the timing message is mainly an MAC frame of which the eCPRI message type in an eCPRI protocol is One-Way Delay Measurement; and the clock module is matched with the main control module to ensure the synchronization of the whole system.

The clock module is responsible for providing a clock meeting the index requirement for the system.

The management module includes ROE mapping control, CPRI & eccri link management, and OAM. The OAM is responsible for all management functions except ROE mapping and CPRI & eCPRI link management, and supports IEEE802.1 ag.

Next, a method for processing data of a forwarding network provided by the present application is described, and the method for processing data of a forwarding network described below and the method for processing data of a forwarding network described above may be referred to correspondingly.

Referring to fig. 11, the forwarding network data processing method may include the following steps:

and step S11, processing the data uploaded by the low-speed forwarding interfaces and then converging the processed data into a group of data serving as first target data.

And the data uploaded by the low-speed forward interface is data sent by the first base station equipment.

Step S12, selecting one of the high-speed forwarding interfaces as a first target interface, and sending the first target data to a forwarding network transmission device through the first target interface.

Step S13, selecting one of the high-speed forwarding interfaces as a second target interface, and receiving data sent by the forwarding network transmission device through the second target interface as second target data.

In another embodiment of the present application, another forwarding network data processing method is introduced, which may include:

and A21, processing the data uploaded by the low-speed forwarding interfaces and then converging the processed data into a group of data serving as first target data.

A22, selecting one of the high-speed forwarding interfaces as a first target interface, and sending the first target data to the forwarding network transmission equipment through the first target interface.

And A23, selecting one of the high-speed forwarding interfaces as a second target interface, and receiving data sent by the forwarding network transmission equipment through the second target interface as second target data.

The data issued by the forwarding network transmission equipment is data sent by second base station equipment;

Steps A21-A23 are the same as steps S11-S13 in the previous embodiment, and the detailed procedures of steps A21-A23 can be referred to the related descriptions of steps S11-S13, which are not described herein again.

Step a24, if the data sent by the first base station device or the second target data is service data, determining whether the data sent by the first base station device or the second target data needs to be compressed or decompressed.

In this embodiment, the MAC frame processing module or the CPRI frame processing module may first determine a protocol frame format of the data sent by the first base station device or the second target data, and after determining the protocol frame format, determine the type of the second target data according to a message type in a frame header of the data sent by the first base station device or the second target data. If the Data sent by the first base station device or the second target Data is service Data (for example, the eccri Message Types in the eccri specification are Data of IQ Data, Bit Sequence, and Generic Data Transfer Types), it may be determined whether the service Data needs to be compressed or decompressed.

If so, step A25 is performed.

Step a25, performing compression or decompression processing on the data sent by the first base station device or the second target data.

In this embodiment, a data volume compression or decompression module of the processor may perform compression or decompression processing on the data sent by the first base station device or the second target data.

Specifically, the data volume compression or decompression module may perform data compression or decompression processing on the traffic data in a designated manner under the control of a management module (e.g., ROE mapping control, CPRI or eccri link management, and OAM) of the processor.

Step a26, if the data sent by the first base station device or the second target data is a timing packet, maintaining clock synchronization between each part of the forwarding network data processing apparatus according to the timing packet.

In this embodiment, the timing message processing module of the processor may be combined with the clock module, and clock synchronization between each part of the forwarding network data processing apparatus is maintained according to the timing message. Specifically, in a scenario where a low-speed CPRI interface and a low-speed eccri interface are mixed and used to be converged into a high-speed eccri interface, a timing packet meeting an eccri specification is transmitted between both ends of a forwarding network data processing apparatus and the forwarding network data processing apparatus, and a frame synchronization signal generated by the CPRI interface can be recovered.

Step a27, if the data sent by the first base station device or the second target data is management data, analyzing the management data, analyzing to obtain ROE mapping control information, CPRI or eccri link management information, and configuration and maintenance information required by device OAM, performing ROE mapping control according to the ROE mapping control information, performing CPRI or eccri link management according to the CPRI or eccri link management information, and performing operation management on the forwarding network data processing apparatus according to the configuration and maintenance information required by the device OAM.

Likewise, the MAC frame processing module or the CPRI frame processing module may analyze the type of the management packet.

The following may be understood as the following, where the ROE mapping control module of the processor performs ROE mapping control according to the management packet: and configuring a mapping method and a mapping rule between the CPRI protocol frame (such as IQ data, synchronous information, a layer 1 in-band protocol, C & M data, protocol extension and manufacturer special information) and the corresponding eCPRI protocol frame according to the management message.

The CPRI or eccri link management module of the processor may perform CPRI or eccri link management according to the management packet. Specifically, the performing, according to the management packet, CPRI or eCPRI link management on the CPRI or eCPRI link may include: control the mapping rules of the interfaces between the low-speed link and the high-speed link (e.g., between the low-speed CPRI interface and the high-speed eccri interface), set the interface attributes, and so on, such as which low-speed CPRI interfaces need to be associated with the high-speed eccri interface or whether the high-speed eccri interface is a base station near-end interface or a far-end interface.

In this embodiment, the OAM module of the processor may perform operation management on the forwarding network data processing apparatus according to the management packet, such as software upgrade, ieee 802.11 ag protocol for connection fault management, and so on.

and A31, processing the data uploaded by the low-speed forwarding interfaces and then converging the processed data into a group of data serving as first target data.

A32, selecting one of the high-speed forwarding interfaces as a first target interface, and sending the first target data to the forwarding network transmission equipment through the first target interface.

And A33, selecting one from the high-speed forwarding interfaces to serve as a second target interface, and receiving data sent by the forwarding network transmission equipment through the second target interface to serve as second target data.

The data issued by the forwarding network transmission equipment is data sent by the second base station equipment;

A34, if the data sent by the first base station device or the second target data is service data, determining whether the data sent by the first base station device or the second target data needs to be compressed or decompressed.

If so, step A35 is performed.

Step a35, performing compression or decompression processing on the data sent by the first base station device or the second target data.

Steps A31-A35 are the same as steps A21-A25 in the previous embodiment, and the detailed procedures of steps A31-A35 can be referred to the related descriptions of steps A21-A25, which are not described herein again.

Step a36, if the transmission protocol of the low-speed forwarding interface associated with the second target interface is different from that of the second target interface, converting the format of the compressed or decompressed second target data into a format conforming to the transmission protocol of the low-speed forwarding interface associated with the second target interface, and sending the format-converted data to the low-speed forwarding interface associated with the second target interface.

Step a37, if the low-speed forwarding interface associated with the first target interface is different from the transmission protocol of the first target interface, converting the data format sent by the first base station device after compression or decompression processing into a transmission protocol format conforming to the first target interface, and sending the data after format conversion to the first target interface.

In this embodiment, an ROE mapping or demapping module of the processor may convert a format of the compressed or decompressed second target data into a format that conforms to a transmission protocol of a forwarding interface connected to the second target interface, and send the format-converted data to the forwarding interface connected to the second target interface. If the transmission protocol of the second target interface is the eCPRI and the transmission protocol of the forward transmission interface connected with the second target interface is the CPRI, the ROE mapping or de-mapping module converts the eCPRI format of the second target data after compression or decompression processing into the CPRI format; or, if the transmission protocol of the second target interface is CPRI and the transmission protocol of the forwarding interface connected to the second target interface is eccri, the ROE mapping or demapping module converts the CPRI format of the second target data after compression or decompression processing into the eccri format.

Step a38, if the data sent by the first base station device or the second target data is a timing packet, maintaining clock synchronization between each part of the forwarding network data processing apparatus according to the timing packet.

Step a39, if the data sent by the first base station device or the second target data is management data, analyzing the management data, analyzing to obtain ROE mapping control information, CPRI or eccri link management information, and configuration and maintenance information required by device OAM, performing ROE mapping control according to the ROE mapping control information, performing CPRI or eccri link management according to the CPRI or eccri link management information, and performing operation management on the forwarding network data processing apparatus according to the configuration and maintenance information required by the device OAM.

Steps A38-A39 are the same as steps A26-A27 in the previous embodiment, and the detailed procedures of steps A38-A39 can be referred to the related descriptions of steps A26-A27, which are not described herein again.

In another embodiment of the present application, another forwarding network data processing method is introduced, and referring to fig. 12, the method may include:

and step S41, determining the sending sequence of the data uploaded by the low-speed forwarding interfaces according to the preset data sending priority, and taking the data as the first target data.

In this embodiment, according to a preset data sending priority, a sending order of data uploaded by the multiple forwarding interfaces is determined, and a Quality of Service (QoS) of data with a high priority is ensured. Optionally, the service flow queuing and priority processing module may store the data uploaded by the multiple forwarding interfaces in different queues according to types, and then determine the sending sequence of the data in the multiple queues according to a preset data sending priority. For example, the data uploaded by the multiple forwarding interfaces includes eCPRI IQ data, OAM messages, and eCPRI one-way delay measurement timing messages, and the data are stored in different data queues, where the priority of the eCPRI one-way delay measurement timing message is highest, the priority of the eCPRIIQ data is next to the ecpriq data, and the OAM message is lowest, and after the service flow queuing and priority processing, the eCPRI one-way delay measurement timing message is sent out first, the priority of the eCPRI IQ data is next to the eCPRI IQ data, and the OAM is last.

The data uploaded by the forward interface is data sent by the first base station equipment.

Step S42, selecting one of the high-speed forwarding interfaces as a first target interface, and sending the first target data to a forwarding network transmission device through the first target interface.

Step S43, selecting one of the high-speed forwarding interfaces as a second target interface, and receiving data sent by the forwarding network transmission device through the second target interface as second target data.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.

From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.

The foregoing describes in detail a method, an apparatus, and a processor for processing data of a forwarding network provided by the present application, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the foregoing embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A forwarding network data processing apparatus, comprising: the processor, at least one high speed forwarding interface and at least one low speed forwarding interface, the processor includes:

a protocol frame processing module for:

according to the installation relation between the forwarding network data processing device and the forwarding network transmission equipment, selecting one of the high-speed forwarding interfaces as a first target interface, and sending the first target data to the forwarding network transmission equipment through the first target interface;

according to the installation relationship between the forwarding network data processing device and the forwarding network transmission equipment, selecting one of the high-speed forwarding interfaces as a second target interface, receiving data issued by the forwarding network transmission equipment through the second target interface as second target data, wherein the data issued by the forwarding network transmission equipment is data sent by second base station equipment;

2. The apparatus of claim 1, wherein the processor further comprises:

3. The apparatus of claim 1, wherein the processor further comprises:

4. The apparatus of claim 1, wherein the processor further comprises:

5. A forwarding network data processing method is applied to a processor in a forwarding network data processing device, and the forwarding network data processing device further comprises: at least one high speed forwarding interface and at least one low speed forwarding interface, the method comprising:

6. The method of claim 5, further comprising:

if the data sent by the first base station device or the second target data is service data, determining whether the data sent by the first base station device or the second target data needs to be compressed or decompressed, and if so, compressing or decompressing the data sent by the first base station device or the second target data;

7. The method of claim 6, wherein after compressing or decompressing the data, further comprising:

8. The method according to claim 5, wherein the processing and aggregating the data uploaded by the plurality of low-speed forwarding interfaces into a group of data as the first target data comprises: