CN107925650B - Data transmission method, forwarding equipment and cascade networking - Google Patents
Data transmission method, forwarding equipment and cascade networking Download PDFInfo
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- CN107925650B CN107925650B CN201580082813.2A CN201580082813A CN107925650B CN 107925650 B CN107925650 B CN 107925650B CN 201580082813 A CN201580082813 A CN 201580082813A CN 107925650 B CN107925650 B CN 107925650B
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Abstract
The embodiment of the invention relates to a data transmission method, forwarding equipment and cascade networking. The method comprises the steps that a forwarding device receives maintenance management information sent by a previous-stage device, wherein the maintenance management information comprises an identifier of a target device, and the maintenance management information is used for a baseband device to manage the target device; when the forwarding device determines that the forwarding device is the target device, processing the maintenance management information, obtaining first response information responding to the baseband device, and sending the first response information to the upper-level device; and when the forwarding device determines that the forwarding device is not the target device, sending the maintenance management information to a next-level device. The method for transmitting data, the forwarding device and the cascade networking of the embodiment of the invention can avoid the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers, and realize the management requirement of the baseband device on the forwarding device.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method for transmitting data, a forwarding device, and a cascade networking.
Background
When a wireless network is deployed, it is costly to deploy fiber resources in some countries and regions, and a construction period is slow, so that it is considered that microwave equipment transmission is adopted to replace fiber transmission between a Base Band Unit (BBU) and a Radio Remote Unit (RRU), so that microwave transmission equipment is added between the BBU and the RRU, and the transmission equipment is generally called as fronthaul equipment.
The existing fronthaul equipment is used as a transmission equipment for transmitting a common public Radio Interface ("cpri") Interface signal between the BBU and the RRU, and the cpri Interface signal (including information such as a rear-stage RRU maintenance message, carrier data, and timing) is wholly packed, transmitted and sent to an opposite terminal, and only the transmission function of the signal is completed. Due to this implementation mechanism of the fronthaul device, the BBU cannot identify the intermediate one-hop fronthaul device.
The BBU cannot identify the forwarding device, and therefore cannot perform maintenance management on it. Therefore, the maintenance of the forwarding equipment needs to be completed by a transmission network management system, and the BBU and the RRU are used as base station equipment and belong to access network equipment, and the maintenance is performed by the access network management system. In this way, two sets of network managers are needed for deploying the base station with the forwarding equipment, and two sets of personnel (access network personnel and transmission network personnel) are needed for maintaining, so that the maintenance and deployment cost is high.
Disclosure of Invention
The invention provides a data transmission method, a forwarding device and a cascade networking, so that a baseband device can uniformly manage the forwarding device.
In a first aspect, a forwarding device is provided, and the forwarding device includes: the system comprises a common public wireless interface cpri slave port, a cpri master port and a processing module, wherein the cpri master port and the cpri slave port are connected through the processing module, and the cpri slave port is used for: receiving maintenance management information sent by a previous-level device, wherein the maintenance management information comprises an identifier of a target device, and the maintenance management information is used for a baseband device to manage the target device; the processing module is used for: and when the forwarding device is determined to be the target device, the maintenance management information is processed to obtain first response information responding to the baseband device, the first response information is sent to the upper-level device through the cpri slave port, and when the forwarding device is determined not to be the target device, the maintenance management information is sent to the lower-level device through the cpri master port.
With reference to the first aspect, in an implementation manner of the first aspect, the cpri primary port is configured to receive second response information, which is sent by the next device and responds to the baseband device, where the second response information is obtained by processing the maintenance management information by the target device; the cpri slave is configured to send the second response message to the primary-superior device.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the forwarding device is connected to the baseband device.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the fronthaul device is connected to a radio frequency device.
In a second aspect, a method for transmitting data is provided, the method comprising: the method comprises the steps that a forward device receives maintenance management information sent by a previous device, wherein the maintenance management information comprises an identifier of a target device, and the maintenance management information is used for a baseband device to manage the target device; when the forwarding device determines that the forwarding device is the target device, processing the maintenance management information, obtaining first response information responding to the baseband device, and sending the first response information to the upper-level device; and when the forwarding device determines that the forwarding device is not the target device, sending the maintenance management information to a next-level device.
With reference to the second aspect, in an implementation manner of the second aspect, the method further includes: the forwarding device receives second response information which is sent by the next-stage device and responds to the baseband device, wherein the second response information is obtained by the target device processing the maintenance management information; the forwarding device sends the second response message to the upper level device.
With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the forwarding device includes: a common public radio interface cpri slave port and a cpri master port; the forwarding device receives the maintenance management information sent by the upper-level device through the cppri slave port, sends the first response information to the upper-level device through the cppri slave port, sends the maintenance management information to the lower-level device through the cppri master port, and receives the second response information sent by the lower-level device through the cppri master port.
With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the forwarding device is connected to the baseband device.
With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the fronthaul device is connected to a radio frequency device.
A third aspect provides a cascaded networking, where the cascaded networking sequentially includes n pieces of forwarding devices, each of the n pieces of forwarding devices is a forwarding device in the first aspect or any one of possible implementation manners of the first aspect, n is a positive integer, a cppri slave port of a first forwarding device of the n pieces of forwarding devices is connected to a baseband device, a cppri master port of an nth forwarding device of the n pieces of forwarding devices is connected to a radio frequency device, a cppri slave port of an ith forwarding device of the n pieces of forwarding devices is connected to a cppri master port of an i-1 st forwarding device, i is a positive integer, and i is greater than 1 and less than or equal to n.
Based on the above technical solution, the method for transmitting data, the forwarding device, and the cascade networking in the embodiments of the present invention, where the forwarding device includes a cppri primary port and a cppri secondary port connected through a processing module, the forwarding device receives, through the cppri secondary port, the maintenance management information sent by the previous device, where the maintenance management information includes an identifier of the target device and is used for the baseband device to manage the target device; when a processing module of the forwarding device determines that the forwarding device is a target device, processing the maintenance management information to obtain first response information responding to the baseband device, and sending the first response information to the upper-level device through a cpri interface; when the processing module determines that the forwarding device is not the target device, the cpri primary port sends the maintenance management information to the next-stage device, so that the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers can be avoided, and the management requirement of the baseband device on the forwarding device is met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of an existing fronthaul apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a forwarding device according to an embodiment of the present invention.
Fig. 3 is another schematic diagram of a forwarding device according to an embodiment of the present invention.
Fig. 4 is still another schematic diagram of a forwarding device according to an embodiment of the present invention.
Fig. 5 is a schematic flow chart of a method of transmitting data according to an embodiment of the present invention.
Fig. 6 is a schematic block diagram of a cascaded networking according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
As shown in fig. 1, a baseband device (BBU) and a radio frequency device (RRU) may be connected by multiple fronthaul devices, and in the prior art, as shown in fig. 1, a hop is taken as an example, that is, two fronthaul devices are included between the BBU and the RRU, a fronthaul device connected to the BBU may be referred to as a near-end fronthaul device, a fronthaul device connected to the RRU is a far-end fronthaul device, a multi-hop fronthaul device may be included between the BBU and the RRU, and each hop fronthaul device may include one near-end fronthaul device and one far-end fronthaul device.
In the prior art, the near-end fronthaul equipment includes a cpri slave port, which is configured to receive carrier data or maintenance management information sent by the BBU, where the maintenance relationship information is used for management of the BBU on the RRU, and the near-end fronthaul equipment sends the carrier data or the maintenance management information to the far-end fronthaul equipment, and optionally, may transmit the carrier data or the maintenance management information through a microwave air interface. The remote forward device includes a cpri primary port, and after receiving the carrier data or the maintenance management information, the remote forward device may transmit the carrier data or the maintenance management information to the RRU through the cpri primary port, so that the RRU can process the carrier data or the maintenance management information. The RRU can also return the response information to the BBU through the far-end forwarding equipment and the near-end forwarding equipment, so that management of the RRU by the BBU is realized.
Therefore, the existing fronthaul equipment is used as transmission equipment for transmitting carrier data or maintenance management information between the BBU and the RRU, the fronthaul equipment integrally packages and transmits the carrier data or the maintenance management information to an opposite terminal, and only completes the transmission function of signals. Therefore, the embodiment of the present invention provides a forwarding device, which can perform unified management through a BBU.
Fig. 2 shows a schematic block diagram of a forwarding device according to an embodiment of the present invention. The fronthaul equipment is configured to transmit data between a baseband device (BBU) and a radio frequency device (RRU), that is, the baseband device communicates with the radio frequency device through at least one fronthaul equipment, and specifically, as shown in fig. 2, the fronthaul equipment may include a cpri slave port 110, a cpri master port 120, and a processing module 130, and the cpri master port 120 and the cpri slave port 110 are connected through the processing module 130,
the cpri slave port 110 is used to: receiving maintenance management information sent by a previous-level device, wherein the maintenance management information comprises an identifier of a target device, and the maintenance management information is used for a baseband device to manage the target device;
the processing module 130 is configured to:
when it is determined that the forwarding device is the target device, the maintenance management information is processed to obtain first response information in response to the baseband device, the first response information is sent from the port 110 to the upper-level device through the cpri,
when it is determined that the forwarding device is not the target device, the cppri primary port 120 is configured to send the maintenance management information to the next device, where the cppri primary port 120 is further configured to receive second response information, which is sent by the next device and responds to the baseband device, where the second response information is obtained by processing the maintenance management information by the target device, and the cppri secondary port 110 is configured to send the second response message to the previous device.
Therefore, the forwarding device in the embodiment of the present invention includes a cpri primary port and a cpri secondary port connected through a processing module, where the forwarding device receives, through the cpri secondary port, maintenance management information sent by an upper-level device, where the maintenance management information includes an identifier of a target device and is used for a baseband device to manage the target device; when a processing module of the forwarding device determines that the forwarding device is a target device, processing the maintenance management information to obtain first response information responding to the baseband device, and sending the first response information to the upper-level device through the cpri slave port; when the processing module determines that the forwarding device is not the target device, the cpri primary port sends the maintenance management information to the next-stage device, so that the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers can be avoided, and the management requirement of the baseband device on the forwarding device is met.
Specifically, a one-hop forwarding device, that is, two forwarding devices, are included between the BBU and the RRU for illustration, as shown in fig. 3, a forwarding device connected to the BBU may be referred to as a near-end forwarding device and may be identified as FH0, and a forwarding device connected to the RRU may be referred to as a far-end forwarding device and may be identified as FH 1. Because the existing FH0 includes the cpri slave port, a virtual cpri master port can be added to FH0 for sending information to the next device or receiving information sent by the next device; since the conventional FH1 includes cpri master port, a virtual cpri slave port may be added to FH1 to receive information sent by the previous device or send information to the previous device. Then for FH0 and FH1, both include one cpri master port and one cpri slave port. Thus, for two forwarding devices of each hop, the two forwarding devices can be treated as two-stage cascade, and for a plurality of forwarding devices, the two forwarding devices can be treated as multi-stage cascade networking of the forwarding devices, and the BBU can manage the cascade networking of the forwarding devices similar to the cascade networking of the RRU.
Specifically, taking the cascade networking of the two-stage fronthaul devices in fig. 3 as an example, in the embodiment of the present invention, the BBU may send maintenance management information to the target device, where the maintenance management information includes an identifier of the target device, the maintenance management information is used for managing the target device by the BBU, the target device may be any fronthaul device, such as FH0 or FH1 in fig. 3, and the target device may also be any RRU. Since FH0 is connected to the BBU in fig. 3, FH0 can receive the maintenance management information sent by the primary device, i.e., the BBU, through cpri from the port and can process the maintenance management information by the processing module.
Specifically, if the processing module of FH0 determines, according to the standard of the target device, that FH0 is the target device, the processing module processes the maintenance management information to obtain the first response information of the responding BBU, and may send the first response information from the port to the upper-level device, i.e., the BBU in fig. 3, so that the BBU manages the target device according to the first response information. Optionally, if the previous device FH0 is a previous device or a previous device, the first response message is sent to the previous device and forwarded to the previous device by the previous device until the first response message is returned to the BBU, so that the BBU manages and maintains the target device, that is, FH0, according to the first response message.
Alternatively, if the processing module of FH0 determines that FH0 is not the target device according to the identifier of the target device, FH0 may send the maintenance management information to the next device through the cpri primary port, as shown in fig. 3, and then send the maintenance management information to FH 1.
In the embodiment of the present invention, when FH1 receives the maintenance management information from the port through cpri, similar judgment processing may be performed as FH0, and if the processing module of FH1 determines that FH1 is the target device, a second response message is sent from the port to FH0 through cpri of FH1, where the second response message is the target device, that is, the information of the response BBU obtained by FH1 according to the maintenance management information. If the processing module of FH1 determines that FH1 is not the target device, the processing module continues to send the maintenance management information to the next device, i.e., the RRU as shown in fig. 3, through the cpri primary port. Optionally, if the next-stage device of FH1 is still a forwarding device, the forwarding device also performs a judgment process similar to FH0 until the maintenance management information is sent to the target device, which may be the forwarding device or the RRU. When the target equipment is forwarding equipment, the forwarding equipment processes the maintenance management information to obtain response information; when the target device is an RRU, the RRU processes the maintenance management information to obtain response information, and the response information of the maintenance management information is returned by the target device, that is, the forwarding device or the RRU, for example, may be returned to the BBU through FH1 and FH0, so that the BBU manages the target device, that is, the management of the forwarding device and the RRU by the forwarding device and the RRU device can be realized.
In the embodiment of the present invention, the calculation and processing of the time delay may be performed on a one-hop forwarding device as shown in fig. 3, or a cascaded networking that may be regarded as two-stage forwarding devices. For the cascade networking of the fronthaul equipment as shown in fig. 3, FH0 and FH1 can be treated as special RRUs cascaded in two stages, and the path from the cpri main port output of FH0 to the cpri slave port input of FH1 can be regarded as the fiber transmission delay between two RRUs. Similarly, the path from cpri slave port output of FH1 to cpri master port input of FH0 can also be regarded as the optical fiber transmission delay between two RRUs. Specifically, for different delay parameters, the following table 1 can be defined according to fig. 3:
TABLE 1
| Time delay parameter | FH0 | FH1 |
| Toffset | 1-＞2-＞9-＞10 | 3-＞7 |
| TBdelayDL | 1-＞2 | 3-＞4 |
| TBdelayUL | 8-＞9-＞10 | 5-＞6-＞7 |
| duRRU | 2-＞3-＞7-＞8-＞9 | 3-＞4-＞5-＞6-＞7 |
It should be understood that the paths in Table 1 can be exemplified by FIG. 3, for example, in Table 1, the latency parameter Toffset can refer to the latency of path 1- > 2- > 9- > 10 in FIG. 3 for FH0, and can refer to the latency of path 3- > 7 in FIG. 3 for FH 1.
In the embodiment of the present invention, the BBU may manage the forwarding device and the RRU. The two-stage cascade forwarding device shown in fig. 3 is taken as an example below.
Specifically, if the BBU is to perform maintenance management on FH0, the FH0 and the BBU are connected through the cpri slave port to exchange maintenance management information, and when the interface is in a normal state, the BBU can normally perform interaction of carrier data, messages, timing and other information with FH0, so that management and maintenance on FH0 can be realized, which is consistent with the processing of a general RRU.
Optionally, for the BBU to manage FH1, on the premise that normal information interaction between FH0 and BBU is required, information can be normally interacted between cpri slave port of FH0 and cpri master port, and FH0 and FH1 can normally interact information, that is, information can be normally interacted between virtual cpri master port of FH0 and virtual cpri slave port of FH 1. When the above conditions are met, the FH0 is used as a normal transmission channel, and the BBU can establish maintenance management on FH1 through the cpri slave port of FH 1.
Optionally, for the BBU to manage the RRU, then normal information interaction can be performed between the cpri slave port of FH0 and the cpri master port at the normal information interaction between BBU and FH0, and under the premise that FH0 and FH1 can normally interact information, information interaction can be performed between the cpri master port of FH1 and the cpri slave port at the normal information interaction, and information interaction can also be performed between the cpri slave port of FH1 and the RRU at the normal information interaction, after the above conditions are satisfied, FH0 and FH1 serve as normal transmission channels, and information interaction between the BBU and the RRU can be supported, so that management of the BBU on the RRU is realized.
It should be understood that, when a plurality of forwarding devices are included between the BBU and the RRU, that is, it can be regarded as multi-stage cascade networking, the management of each forwarding device by the BBU may be according to the above-mentioned situation of two-stage cascade networking, and so on, and the present invention is not limited thereto.
Therefore, the forwarding device in the embodiment of the present invention includes a cpri primary port and a cpri secondary port connected through a processing module, where the forwarding device receives, through the cpri secondary port, maintenance management information sent by an upper-level device, where the maintenance management information includes an identifier of a target device and is used for a baseband device to manage the target device; when a processing module of the forwarding device determines that the forwarding device is a target device, processing the maintenance management information to obtain first response information responding to the baseband device, and sending the first response information to the upper-level device through the cpri slave port; when the processing module determines that the forwarding device is not the target device, the cpri primary port sends the maintenance management information to the next-stage device, so that the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers can be avoided, and the management requirement of the baseband device on the forwarding device is met.
As shown in fig. 4, the embodiment of the present invention further provides a forwarding device 200, which includes a processor 210, a memory 220, a bus system 230, a cpri slave port 240, and a cpri master port 250. Wherein, the processor 210 and the memory 220 are connected by a bus system 230, the memory 220 is used for storing instructions, and the processor 210 is used for executing the instructions stored by the memory 220. cpri slave 240 is configured to receive maintenance management information sent by a previous device, where the maintenance management information includes an identifier of a target device, and the maintenance management information is used for a baseband device to manage the target device; the memory 220 stores program code, and the processor 210 can call the program code stored in the memory 220 to perform the following operations:
when it is determined that the forwarding device is the target device, the maintenance management information is processed to obtain first response information in response to the baseband device, the first response information is sent from the port 240 to the upper-level device through the cpri,
when it is determined that the forwarding device is not the target device, the maintenance management information is sent to the next device through the cpri primary port 250.
Therefore, the forwarding device in the embodiment of the present invention includes a cpri primary port and a cpri secondary port connected through a processing module, where the forwarding device receives, through the cpri secondary port, maintenance management information sent by an upper-level device, where the maintenance management information includes an identifier of a target device and is used for a baseband device to manage the target device; when a processing module of the forwarding device determines that the forwarding device is a target device, processing the maintenance management information to obtain first response information responding to the baseband device, and sending the first response information to the upper-level device through the cpri slave port; when the processing module determines that the forwarding device is not the target device, the cpri primary port sends the maintenance management information to the next-stage device, so that the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers can be avoided, and the management requirement of the baseband device on the forwarding device is met.
It should be understood that, in the embodiment of the present invention, the processor 210 may be a Central Processing Unit (CPU), and the processor 210 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 220 may include both read-only memory and random access memory and provides instructions and data to the processor 310. A portion of memory 220 may also include non-volatile random access memory. For example, the memory 220 may also store device type information.
The bus system 230 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 230 in the figures.
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 210. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the 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 220, and the processor 210 reads the information in the memory 220 and completes the steps of the method in combination with the hardware thereof. To avoid repetition, it is not described in detail here.
Optionally, as an embodiment, the cpri primary port 240 is configured to receive second response information, sent by the next device and responding to the baseband device, where the second response information is obtained by processing the maintenance management information by the target device; the cpri slave 250 is configured to send the second response message to the primary-superior device.
Optionally, as an embodiment, the forwarding device is connected to the baseband device.
Optionally, as an embodiment, the forwarding device is connected to a radio frequency device.
It should be understood that the forwarding device 200 according to the embodiment of the present invention may correspond to the forwarding device 100 in the embodiment of the present invention, and the above and other operations and/or functions of each module in the forwarding device 200 correspond to each operation of the forwarding device 100 in the embodiment of the present invention, respectively, and are not described herein again for brevity.
Therefore, the forwarding device in the embodiment of the present invention includes a cpri primary port and a cpri secondary port connected through a processing module, where the forwarding device receives, through the cpri secondary port, maintenance management information sent by an upper-level device, where the maintenance management information includes an identifier of a target device and is used for a baseband device to manage the target device; when a processing module of the forwarding device determines that the forwarding device is a target device, processing the maintenance management information to obtain first response information responding to the baseband device, and sending the first response information to the upper-level device through the cpri slave port; when the processing module determines that the forwarding device is not the target device, the cpri primary port sends the maintenance management information to the next-stage device, so that the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers can be avoided, and the management requirement of the baseband device on the forwarding device is met.
Fig. 5 shows a method 300 for transmitting data according to an embodiment of the present invention, which may be performed by the forwarding device shown in fig. 2, and specifically, the method 300 may include:
s310, the forwarding device receives maintenance management information sent by the previous-stage device, wherein the maintenance management information comprises an identifier of a target device, and the maintenance management information is used for the baseband device to manage the target device;
s320, when the forwarding device determines that the forwarding device is the target device, processing the maintenance management information, obtaining a first response information responding to the baseband device, and sending the first response information to the upper-level device;
s330, when the forwarding device determines that the forwarding device is not the target device, sending the maintenance management information to the next device.
Therefore, in the method for transmitting data according to the embodiment of the present invention, the forwarding device receives the maintenance management information sent by the previous device, where the maintenance management information includes an identifier of the target device, and the maintenance management information is used for the baseband device to manage the target device; when the forwarding device determines that the forwarding device is the target device, processing the maintenance management information, obtaining first response information responding to the baseband device, and sending the first response information to the upper-level device; when the forwarding device determines that the forwarding device is not the target device, the maintenance management information is sent to the next-stage device, so that the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers can be avoided, and the management requirement of the baseband device on the forwarding device is met.
In an embodiment of the present invention, the method 300 may be performed by a forwarding device, which may be the forwarding device shown in fig. 2, and which includes a cpri slave port and a cpri master port.
In S310, the forwarding device receives maintenance management information sent by the previous device, where the maintenance management information includes an identifier of the target device, and the maintenance management information is used for the baseband device to manage the target device. Specifically, taking the fronthaul device as FH0 in fig. 3 as an example, FH0 may receive, through cpri, the maintenance management information sent by the BBU from the port, where the maintenance management information is used for BBU maintenance target devices, and the target devices may be FH0, FH1, or RRU as shown in fig. 3.
In S320, when the forwarding device determines that the forwarding device is the target device, the maintenance management information is processed to obtain first response information responding to the baseband device, and the first response information is sent to the upper-level device. Specifically, taking the fronthaul equipment as FH0 in fig. 3 as an example, after FH0 receives the maintenance management information sent by the BBU from the port through cpri, when it is determined that FH0 is the target equipment, the maintenance management information may be processed to obtain first response information, where the first response information is used for responding to the BBU, so that the BBU may manage FH0 according to the first response information, and the fronthaul equipment FH0 may send the first response information to the BBU from the port through cpri.
In S330, when the forwarding device determines that the forwarding device is not the target device, the maintenance management information is sent to the next device. Specifically, taking the fronthaul device as FH0 in fig. 3 as an example, after FH0 receives the maintenance management information sent by the BBU through the cpri slave port, after determining that FH0 is not the target device, the maintenance management information may be transmitted to the next device, that is, FH1, through the cpri master port.
In the embodiment of the present invention, after receiving the maintenance management information, the forwarding device FH1 performs similar processing, until the target device receives the maintenance management information, and then processes the maintenance management information to obtain the second response information, and returns the second response information to the BBU, for example, the target device may be FH1, and FH1 returns the second response information to FH0 through cpri slave port, and then FH0 returns to the BBU, so that the BBU manages the target device according to the second response information.
Therefore, in the method for transmitting data according to the embodiment of the present invention, the forwarding device receives the maintenance management information sent by the previous device, where the maintenance management information includes an identifier of the target device, and the maintenance management information is used for the baseband device to manage the target device; when the forwarding device determines that the forwarding device is the target device, processing the maintenance management information, obtaining first response information responding to the baseband device, and sending the first response information to the upper-level device; when the forwarding device determines that the forwarding device is not the target device, the maintenance management information is sent to the next-stage device, so that the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers can be avoided, and the management requirement of the baseband device on the forwarding device is met.
Fig. 6 shows a schematic block diagram of a cascaded network 400 according to an embodiment of the present invention, where the cascaded network 400 is located between a BBU and an RRU, and the cascaded network 400 includes n fronthaul devices, and each fronthaul device in the n fronthaul devices is the fronthaul device shown in fig. 2, that is, a link between the interiors of each fronthaul device may be as shown in fig. 2, where n is a positive integer.
Specifically, the connection manner of the cascade networking 400 is as shown in fig. 6, where a cppri slave port of a first forwarding device in the n forwarding devices is connected to a baseband device, a cppri master port of an nth forwarding device in the n forwarding devices is connected to a radio frequency device, a cppri slave port of an ith forwarding device in the n forwarding devices is connected to a cppri master port of an i-1 th forwarding device, i is a positive integer, and i is greater than 1 and less than or equal to n.
It should be understood that each forwarding device in the cascaded networking 400 according to the embodiment of the present invention may correspond to the forwarding device 100 in the embodiment of the present invention, and may correspond to a corresponding main body in executing the method 300 according to the embodiment of the present invention, and the above and other operations and/or functions of each module in each forwarding device in the cascaded networking 400 are respectively for implementing corresponding flows of each method in fig. 5, and are not described herein again for brevity.
Therefore, the cascade networking of the embodiment of the present invention includes n pieces of forwarding devices, where each forwarding device includes a cppri primary port and a cppri secondary port connected through a processing module, and the forwarding device receives, through the cppri secondary port, maintenance management information sent by an upper-level device, where the maintenance management information includes an identifier of a target device and is used for a baseband device to manage the target device; when a processing module of the forwarding device determines that the forwarding device is a target device, processing the maintenance management information to obtain first response information responding to the baseband device, and sending the first response information to the upper-level device through a cpri interface; when the processing module determines that the forwarding device is not the target device, the cpri primary port sends the maintenance management information to the next-stage device, so that the complex networking and high device cost caused by separately managing the wireless device and the forwarding device by using two network managers can be avoided, and the management requirement of the baseband device on the forwarding device is met.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
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 ways. 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 invention 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 functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A forwarding device, characterized in that the forwarding device comprises: a cpri slave port, a cpri master port and a processing module, where the cpri master port and the cpri slave port are connected via the processing module,
the cpri slave port is used for: receiving maintenance management information sent by a previous-stage device, wherein the maintenance management information comprises an identifier of a target device, and the maintenance management information is used for a baseband device to manage the target device;
the processing module is used for:
when the forwarding device is determined to be the target device, processing the maintenance management information, obtaining first response information responding to the baseband device, and sending the first response information to the upper-level device through the cpri slave port,
and when the forwarding equipment is determined not to be the target equipment, sending the maintenance management information to the next-level equipment through the cpri primary port.
2. The forwarding device of claim 1,
the cpri primary port is configured to receive second response information, which is sent by the next-stage device and is used for responding to the baseband device, where the second response information is obtained by processing the maintenance management information by the target device;
the cpri slave port is configured to send the second response message to the primary device.
3. The forwarding device of claim 1,
the forwarding device is connected with the baseband device.
4. Forwarding apparatus according to any of claims 1 to 3,
the forward transmission equipment is connected with the radio frequency equipment.
5. A method of transmitting data, the method comprising:
the method comprises the steps that a forward device receives maintenance management information sent by a previous device, wherein the maintenance management information comprises an identifier of a target device, and the maintenance management information is used for a baseband device to manage the target device;
when the forwarding device determines that the forwarding device is the target device, processing the maintenance management information, obtaining first response information responding to the baseband device, and sending the first response information to the upper-level device;
and when the forwarding device determines that the forwarding device is not the target device, sending the maintenance management information to a next-level device.
6. The method of claim 5, further comprising:
the forwarding device receives second response information which is sent by the next-stage device and responds to the baseband device, wherein the second response information is obtained by the target device processing the maintenance management information;
and the forwarding equipment sends the second response information to the upper-level equipment.
7. The method of claim 6,
the forwarding device comprises: a common public radio interface cpri slave port and a cpri master port;
the forwarding device receives the maintenance management information sent by the upper-level device through the cpri slave port, sends the first response information to the upper-level device through the cpri slave port,
and the forwarding device sends the maintenance management message to the next-level device through the cppri primary port, and receives the second response information sent by the next-level device through the cppri primary port.
8. The method according to any one of claims 5 to 7,
the forwarding device is connected with the baseband device.
9. The method according to any one of claims 5 to 7,
the forward transmission equipment is connected with the radio frequency equipment.
10. A cascaded networking, characterized in that the cascaded networking comprises n forwarding devices, each of the n forwarding devices being a forwarding device according to any one of claims 1 to 4, n being a positive integer,
the cpri slave port of the first one of the n forwarding devices is connected to the baseband device,
the cpri primary port of the nth forward device of the n forward devices is connected to the radio frequency device,
the cpri slave port of the ith forwarding device in the n forwarding devices is connected with the cpri master port of the (i-1) th forwarding device, i is a positive integer, and n is greater than 1 and less than or equal to i.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/088830 WO2017035806A1 (en) | 2015-09-02 | 2015-09-02 | Method for transmitting data, forward transmission device and cascaded networking |
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| CN107925650A CN107925650A (en) | 2018-04-17 |
| CN107925650B true CN107925650B (en) | 2020-05-08 |
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| CN113133010B (en) * | 2020-01-16 | 2023-01-03 | 深圳市云海物联科技有限公司 | Wireless networking method, device, terminal equipment and storage medium |
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| WO2017035806A1 (en) | 2017-03-09 |
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