WO2017035806A1

WO2017035806A1 - Method for transmitting data, forward transmission device and cascaded networking

Info

Publication number: WO2017035806A1
Application number: PCT/CN2015/088830
Authority: WO
Inventors: 潘辉; 何延峰; 刘长城
Original assignee: 华为技术有限公司
Priority date: 2015-09-02
Filing date: 2015-09-02
Publication date: 2017-03-09
Also published as: CN107925650A; CN107925650B

Abstract

The embodiments of the present invention relate to a method for transmitting data, a forward transmission device and cascaded networking. The method comprises a forward transmission device receiving maintenance and management information sent by a higher-level device, wherein the maintenance and management information comprises an identifier of a target device, and the maintenance and management information is used for a baseband device to manage the target device; when the forward transmission device determines that the forward transmission device is the target device, processing the maintenance and management information, obtaining first response information responding the baseband device, and sending the first response information to the higher-level device; and when the forward transmission device determines that the forward transmission device is not the target device, sending the maintenance and management information to a lower-level device. The method for transmitting data, the forward transmission device and the cascaded networking of the embodiments of the present invention can avoid complex networking and high device costs because two network managers are used to separately manage a wireless device and a forward transmission device, and realize the management requirements of a baseband device for a forward transmission device.

Description

Method for transmitting data, pre-transmission equipment, and cascaded networking

Technical field

The present invention relates to the field of communications, and in particular, to a method for transmitting data, a preamble device, and a cascade networking.

Background technique

When deploying a wireless network, the cost of deploying optical fiber resources in some countries and regions is relatively high and the construction period is slow. Therefore, it is considered to use a microwave device to transmit an alternative baseband unit (BBU) and a radio remote unit (Radio Remote). The fiber transmission in the middle of the Unit (RRU) is used to add a microwave transmission device between the BBU and the RRU. Generally, the transmission device is a forward transmission device.

The existing preamble device is used as a transmission device for transmitting a common public radio interface (Common Public Radio Interface, "cpri") interface signal between the BBU and the RRU, and for the cpri interface signal (including the latter RRU maintenance message, carrier data, timing) The information is transmitted to the opposite end, and only the transmission function of the signal is completed. Due to this implementation mechanism of the preamble device, the BBU cannot identify the intermediate hop preamble device.

The BBU does not recognize the pre-transmission device, so it cannot be managed. Therefore, the maintenance of the pre-transmission equipment needs to be completed by the transmission network management system, and the BBU and the RRU are used as the base station equipment, and belong to the access network equipment, and are maintained by the access network network management. In this way, deploying a base station with a pre-transmission device requires two sets of network management. At the same time, two sets of personnel (access network personnel and transmission network personnel) are required for maintenance, and the maintenance and deployment cost is high.

Summary of the invention

The invention provides a method for transmitting data, a pre-transmission device and a cascade networking, so that the baseband device can uniformly manage the pre-transmission device.

In a first aspect, a preamble device is provided. The preamble device includes: a common public radio interface cpri slave port, a cpri master port, and a processing module, and the cpri master port and the cpri slave port are connected through the processing module, the cpri slave port And the method for: receiving the maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the baseband device to manage the target device; and the processing module is configured to: when determining that the pre-transmission device is The target device processes the maintenance management information, obtains the first response information in response to the baseband device, and sends the cpri slave port to the upper-level device through the cpri The first response information is sent by the cpri main port to the next-level device when the pre-transmission device is not the target device.

With reference to the first aspect, in an implementation manner of the first aspect, the cpri main port is configured to receive second response information sent by the next-level device in response to the baseband device, where the second response information is processed by the target device Obtaining the maintenance management information; the cpri slave port is configured to send the second response message to the upper-level device.

In conjunction with the first aspect and the above implementation, in another implementation of the first aspect, the preamble device is coupled to the baseband device.

In conjunction with the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the preamble device is connected to the radio frequency device.

The second aspect provides a method for transmitting data, where the method includes: the pre-transmission device receives maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the baseband device to manage the a target device, when the forward device determines that the forward device is the target device, processes the maintenance management information, obtains first response information in response to the baseband device, and sends the first response information to the upper-level device; When the device determines that the forward device is not the target device, the device sends the maintenance management information to the next-level device.

With reference to the second aspect, in an implementation manner of the second aspect, the method further includes: the forward transmission device receiving the second response information sent by the next-level device in response to the baseband device, where the second response information is the target The device obtains the maintenance management information, and the pre-transmission device sends the second response information to the upper-level device.

With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the pre-transmission device includes: a common public radio interface cpri slave port and a cpri master port; the pre-transmitting device receives the slave port through the cpri port The maintenance management information sent by the first-level device sends the first response information to the upper-level device through the cpri slave port, and the pre-transmission device sends the maintenance management message to the next-level device through the cpri main port, and the The cpri main port receives the second response information sent by the next level device.

In conjunction with the second aspect and the above implementation, in another implementation of the second aspect, the preamble device is coupled to the baseband device.

In conjunction with the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the pre-transmission device is connected to the radio frequency device.

In a third aspect, a cascading networking is provided, where the cascading networking includes n pre-transmission devices in sequence. Each of the n forward transmission devices is the forward transmission device in any one of the possible implementations of the first aspect or the first aspect, where n is a positive integer, and the first one of the n forward transmission devices The cpri slave port of the preamble device is connected to the baseband device, and the cpri main port of the nth preamble device of the n preamble devices is connected to the radio device, and the cpri slave port of the i th advance device in the n preamble devices The cpri main ports of i-1 preamble devices are connected, i is a positive integer, and 1<i ≤ n.

The method for transmitting data, the pre-transmission device, and the cascade networking according to the foregoing technical solution, the pre-transmission device includes a cpri main port and a cpri slave port connected through the processing module, and the pre-transmission device receives the previous one through the cpri slave port. The maintenance management information sent by the level device, the maintenance management information includes the identifier of the target device, and is used by the baseband device to manage the target device; when the processing module of the forward transmission device determines that the forward transmission device is the target device, the maintenance management information is processed, and the response baseband device is obtained. The first response information is sent from the port to the first level device through the cpri. When the processing module determines that the forward device is not the target device, the maintenance management information is sent to the next level device through the cpri main port, which can be avoided. The two network management systems separately manage the wireless device and the pre-transmission device to cause complex networking and high equipment cost, and realize the management requirements of the baseband device for the pre-transmission device.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic diagram of an existing pre-transmission device in accordance with an embodiment of the present invention.

2 is a schematic diagram of a forward transmission device in accordance with an embodiment of the present invention.

3 is another schematic diagram of a forward transmission device in accordance with an embodiment of the present invention.

4 is still another schematic diagram of a forward transmission device in accordance with an embodiment of the present invention.

FIG. 5 is a schematic flowchart 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 are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art are not making innovations. All other embodiments obtained under the premise of causative labor are within the scope of protection of the present invention.

As shown in FIG. 1 , a plurality of preamble devices can be connected between a baseband device (BBU) and a radio frequency device (RRU). In the prior art, as shown in FIG. 1 , one hop is taken as an example, that is, a BBU and a BBU are used. The RRUs include two pre-transmission devices, and the pre-transmission device connected to the BBU is a remote pre-transmission device, and the pre-transmission device connected to the RRU is a remote pre-transmission device. The BBU and the RRU may include a multi-hop preamble device. Each hop forward device can include a near-end preamble device and a far-end preamble device.

In the prior art, the near-end preamble device includes a cpri slave port for receiving carrier data or maintenance management information sent by the BBU, and the maintenance relationship information is used for management of the RRU by the BBU, and the carrier data of the near-end preamble device or The maintenance management information is sent to the remote forwarding device. Alternatively, it can be transmitted through the microwave air interface. The remote forwarding device includes a cpri primary port. After receiving the carrier data or maintenance management information, the remote forwarding device can transmit the carrier data or maintenance management information to the RRU through the cpri main port to facilitate processing by the RRU. The RRU can also return the response information to the BBU through the remote forwarding device and the near-end pre-transmission device, thereby implementing management of the RRU by the BBU.

Therefore, the existing preamble device is used as a transmission device for transmitting carrier data or maintenance management information between the BBU and the RRU, and the preamble device transmits and transmits the carrier data or the maintenance management information to the opposite end, and only completes the transmission function of the signal. Due to this implementation mechanism of the preamble device, the BBU does not recognize and cannot identify the intermediate hop preamble device. Therefore, the embodiment of the present invention provides a pre-transmission device, which can be uniformly managed by the BBU.

2 shows a schematic block diagram of a preamble device in accordance with an embodiment of the present invention. The preamble device 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 of the preamble devices. Specifically, as shown in FIG. 2, the preamble device may include The common public radio interface cpri is connected to the port 110, the cpri main port 120, and the processing module 130, and the cpri main port 120 and the cpri slave port 110 are connected through the processing module 130.

The cpri slave port 110 is configured to: receive maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the 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, processing the maintenance management information, obtaining first response information in response to the baseband device, and sending the first to the upper-level device by using the cpri slave port 110 Response information,

When it is determined that the forward device is not the target device, the cpri main port 120 sends the maintenance management information to the next-level device, where the cpri main port 120 is further configured to receive the response sent by the next-level device to the baseband device. The second response information is obtained by the target device processing the maintenance management information, and the cpri slave port 110 is configured to send the second response message to the upper-level device.

Therefore, the pre-transmission device of the embodiment of the present invention includes a cpri main port and a cpri slave port connected by the processing module, and the pre-transmission device receives maintenance management information sent by the upper-level device through the cpri slave port, where the maintenance management information includes the target device. And the processing module of the pre-transmission device determines that the pre-transmission device is the target device, processes the maintenance management information, obtains the first response information of the response baseband device, and sends the response to the first-level device through the cpri port. The first response information; when the processing module determines that the pre-transmission device is not the target device, the maintenance management information is sent to the next-level device through the cpri main port, which can avoid the complicated networking caused by the use of the two network management systems to separately manage the wireless device and the pre-transmission device. And the cost of equipment is high, and the management requirements of the baseband equipment for the forward transmission equipment are realized.

Specifically, the BBU and the RRU include a one-hop pre-transmission device, that is, two pre-transmission devices. As shown in FIG. 3, the pre-transmission device connected to the BBU may be referred to as a near-end pre-transmission device and may be identified as FH0. The preamble device connected to the RRU can be called a remote preamble device and can be identified as FH1. Since the existing FH0 includes the cpri slave port, a virtual cpri master port can be added to the FH0 for sending information to the next-level device or receiving information sent by the next-level device; and the existing FH1 includes Cpri main port, so you can add a virtual cpri slave port in FH1 to receive information sent by the upper-level device or send information to the upper-level device. For FH0 and FH1, both a cpri main port and a cpri slave port are included. In this way, for the two preamble devices of each hop, it can be regarded as a two-level cascading processing. For a plurality of the pre-transmission devices, the multi-stage cascading networking of the pre-transmission device can be regarded as a BBU. The cascading networking of the RRU is managed to manage the cascading networking of the forwarding device.

Specifically, the cascading networking of the two-stage pre-transmission device of FIG. 3 is taken 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 the identifier of the target device, and the maintenance is performed. The management information is used by the BBU to manage the target device. The target device may be any pre-transmission device, such as FH0 or FH1 in FIG. 3, and the target device may also be any RRU. As shown in FIG. 3, the FH0 is connected to the BBU. Therefore, the FH0 can receive the maintenance management information sent by the BBU through the cpri slave port, and the maintenance management information can be processed by the processing module.

Specifically, if the processing module of the FH0 determines that the FH0 is the target device according to the standard of the target device, the processing module processes the maintenance management information, obtains the first response information of the response BBU, and can pass the cpri port upward. The level device, that is, the BBU in FIG. 3, sends the first response information, so that the BBU manages the target device according to the first response information. Optionally, if the upper-level device before the forwarding device FH0 is still a pre-transmission device, sending the first response information to the upper-level device forwarding device, and continuing to the next-level device by the upstream device Forwarding until the first response information is returned to the BBU, so that the BBU manages and maintains the target device, that is, FH0, according to the first response information.

Optionally, if the processing module of the FH0 determines that the FH0 is not the target device according to the identifier of the target device, the FH0 may send the maintenance management information to the next-level device through the cpri main port, as shown in FIG. 3, The maintenance management information is sent to FH1.

In the embodiment of the present invention, when FH1 receives maintenance management information from the port through cpri, similar judgment processing may be performed as FH0. If the processing module of FH1 determines that the FH1 is the target device, the cpri slave port of FH1 is adopted. Sending a second response message to the FH0, where the second response message is the target device, that is, the information of the response BBU obtained by the FH1 according to the maintenance management information. If the processing module of the FH1 determines that the FH1 is not the target device, the maintenance management information is sent to the next-level device, that is, the RRU shown in FIG. 3, through the cpri main port. Optionally, if the next-level device of the FH1 is still a pre-transmission device, the pre-transmission device also performs a judgment process similar to FH0 until the maintenance management information is sent to the target device, optionally, the target device may be a pre-transmission The device can also be an RRU. When the target device is a pre-transmission device, the pre-transmission device 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 then the target device, that is, The response information of the pre-transmission device or the RRU is returned to the BBU, for example, by the FH1 and the FH0, so that the BBU can manage the target device, that is, the BBU can manage the pre-transmission device and the RRU device.

In the embodiment of the present invention, for the one-hop forward transmission device shown in FIG. 3, or the cascade networking of the two-stage pre-transmission device, delay calculation and processing can be performed. For the cascaded network of the preamble device shown in Figure 3, FH0 and FH 1 can be treated as a special RRU of two cascades, from the cpri primary port of FH0 to the path between the cpri slave inputs of FH1. Both can be seen as the fiber transmission delay between the two RRUs. Similarly, the path from the cpri slave output of the FH1 to the cpri main port input of the FH0 can also be regarded as the fiber transmission delay between the two RRUs. Specifically, for different delay parameters, the definition according to FIG. 3 can be as shown in Table 1:

Table 1

时延参数Delay parameter	FH0FH0	FH1FH1
时延参数Delay parameter	FH0FH0	FH1FH1	ToffsetToffset	1->2->9->101->2->9->10	3->73->7
TBdelayDLTBdelayDL	1->21->2	3->43->4	ToffsetToffset	1->2->9->101->2->9->10	3->73->7
TBdelayDLTBdelayDL	1->21->2	3->43->4	TBdelayULTBdelayUL	8->9->108->9->10	5->6->75->6->7
duRRUduRRU	2->3->7->8->92->3->7->8->9	3->4->5->6->73->4->5->6->7	TBdelayULTBdelayUL	8->9->108->9->10	5->6->75->6->7

It should be understood that the path in the table 1 can be exemplified by FIG. 3. For example, in Table 1, the delay parameter Toffset may refer to the path 1->2->9->10 in FIG. 3 for FH0. The delay, for FH1, can refer to the delay of path 3->7 in Figure 3.

In the embodiment of the present invention, the BBU can manage the preamble device and the RRU. The following is an example of a two-stage cascaded front-end device shown in FIG.

Specifically, if the BBU is to perform maintenance management on the FH0, the FH0 and the BBU are connected through the cpri slave port to maintain management information. When the interface status is normal, the BBU can perform carrier data, message, timing, and other information with the FH0. Interaction, so that management and maintenance of FH0 can be realized, which is consistent with general RRU processing.

Optionally, if the BBU needs to manage the FH1, the information of the FH0 and the BBU can be exchanged normally, and the FH0 and the FH1 can exchange information normally. That is, the virtual cpri main port of FH0 and the virtual cpri slave port of FH1 can normally exchange information. If the above conditions are met, FH0 is used as the normal transmission channel, and the BBU can establish maintenance management for FH1 through the cpri slave port of FH1.

Optionally, for the BBU to manage the RRU, the BBU and the FH0 can exchange information normally, and the CPR slave port of the FH0 and the cpri port can exchange information normally, and the FH0 and the FH1 can exchange information normally. To meet the normal interaction between the cpri primary port and the cpri slave port of FH1, the CPR slave port of the FH1 can also exchange information normally. After the above conditions are met, FH0 and FH1 can be supported as normal transmission channels. The BBU exchanges information with the RRU to implement management of the RRU by the BBU.

It should be understood that, when multiple pre-transmission devices are included between the BBU and the RRU, that is, the multi-level cascading networking can be regarded as the management of each pre-transmission device by the BBU according to the situation of the two-level cascading networking. In this way, the invention is not limited thereto.

Therefore, the preamble device of the embodiment of the present invention includes a cpri main port connected through a processing module and The cpri slave device receives the maintenance management information sent by the upper-level device through the cpri slave port, where the maintenance management information includes the identifier of the target device, and is used by the baseband device to manage the target device; the processing module of the pre-transmission device determines the forward device When the target device is used, the maintenance management information is processed, and the first response information of the response baseband device is obtained, and the first response information is sent from the port to the first-level device through the cpri; when the processing module determines that the forward device is not the target device, the cpri master The maintenance information is sent to the next-level device, which avoids the complexity of networking and high equipment cost caused by the use of two network management systems to manage the wireless device and the pre-transmission device, and implements the management requirements of the baseband device for the pre-transmission device.

As shown in FIG. 4, an embodiment of the present invention further provides a preamble device 200, including a processor 210, a memory 220, a bus system 230, a cpri slave port 240, and a cpri master port 250. The processor 210 and the memory 220 are connected by a bus system 230 for storing instructions for executing instructions stored in the memory 220. The cpri slave port 240 is configured to receive maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the baseband device to manage the target device; the memory 220 stores the 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, processing the maintenance management information, obtaining the first response information in response to the baseband device, and sending the first response information to the upper-level device through the cpri slave port 240,

When it is determined that the forward transmission device is not the target device, the maintenance management information is sent by the cpri main port 250 to the next-level device.

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). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 220 can include read only memory and random access memory and provides instructions and data to the processor 310. A portion of the memory 220 may also include a non-volatile random access memory. For example, the memory 220 can also store information of the device type.

The bus system 230 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 230 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 210 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. 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 above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

Optionally, as an embodiment, the cpri main port 240 is configured to receive second response information sent by the next-level device in response to the baseband device, where the second response information is obtained by the target device processing the maintenance management information. The cpri slave port 250 is configured to send the second response message to the upper level device.

Optionally, as an embodiment, the preamble device is connected to the baseband device.

Optionally, as an embodiment, the preamble device is connected to the radio frequency device.

It should be understood that the preamble device 200 according to the embodiment of the present invention may correspond to the preamble device 100 in the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the preamble device 200 respectively correspond to the embodiments of the present invention. The operations of the pre-transmission device 100 are not described herein for brevity.

Therefore, the pre-transmission device of the embodiment of the present invention includes a cpri main port and a cpri slave port connected by the processing module, and the pre-transmission device receives maintenance management information sent by the upper-level device through the cpri slave port, where the maintenance management information includes the target device. And the processing module of the pre-transmission device determines that the pre-transmission device is the target device, processes the maintenance management information, obtains the first response information of the response baseband device, and sends the response to the first-level device through the cpri port. The first response information; when the processing module determines that the forward transmission device is not the target device, sending the maintenance management information to the next-level device through the cpri main port, which can avoid using the two network management systems to separately manage the wireless device and the pre-transmission device. The networking caused by the backup is complicated and the equipment cost is high, and the management requirements of the baseband equipment for the forward transmission equipment are realized.

FIG. 5 shows a method 300 for transmitting data according to an embodiment of the present invention. The method may be performed by a pre-transmission device as shown in FIG. 2. Specifically, the method 300 may include:

S310, the pre-transmission device receives maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the baseband device to manage the target device;

S320, when the forward transmission device determines that the forward transmission device is the target device, processing the maintenance management information, obtaining the first response information in response to the baseband device, and sending the first response information to the upper-level device;

S330. When the forward transmission device determines that the forward transmission device is not the target device, the maintenance management information is sent to the next-level device.

Therefore, in the method for transmitting data in the embodiment of the present invention, the pre-transmission device receives maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the baseband device to manage the target device; When the forward transmission device determines that the forward transmission device is the target device, processing the maintenance management information, obtaining the first response information in response to the baseband device, and sending the first response information to the upper-level device; and when the forward transmission device determines the forward transmission device When the target device is not the target device, the maintenance management information is sent to the next-level device, so that the network management complexity and the device cost caused by the wireless device and the pre-transmission device are separately managed by using the two network management systems, and the management requirements of the baseband device for the pre-transmission device are realized. .

In the embodiment of the present invention, the method 300 may be performed by a pre-transmission device, which may be a pre-transmission device as shown in FIG. 2, and the pre-transmission device includes a cpri slave port and a cpri master port.

In S310, the pre-transmission device receives maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the baseband device to manage the target device. Specifically, the FH0 is used as the example of the FH0 in FIG. 3, and the FH0 can receive the maintenance management information sent by the BBU through the cpri slave port. The maintenance management information is used by the BBU to maintain the target device, and the target device can be as shown in FIG. FH0, FH1 or RRU shown.

In S320, when the forward transmission device determines that the forward transmission device is the target device, the maintenance management information is processed, and the first response information is sent in response to the baseband device, and the first response information is sent to the upper-level device. Specifically, the FH0 in FIG. 3 is taken as an example. After the FH0 receives the maintenance management information sent by the BBU through the cpri slave port, after determining that the FH0 is the target device, the maintenance management information may be processed to obtain the first a response message, the first response information is used to respond to the BBU, so that the BBU can manage the FH0 according to the first response information, and the pre-transmission device FH0 can send the first response information to the BBU through the cpri slave port.

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-level device. Specifically, the FH0 in FIG. 3 is taken as an example. After the FH0 receives the maintenance management information sent by the BBU through the cpri slave port, after determining that the FH0 is not the target device, the maintenance management information can be sent to the cpri main port. The next level of equipment, FH1 transmission.

In the embodiment of the present invention, after receiving the maintenance management information, the pre-transmission 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 then the second The response information is returned to the BBU. For example, the target device may be FH1, and the FH1 returns the second response information to the FH0 through the cpri slave port, and then the FH0 returns to the BBU, so that the BBU can target the target device according to the second response information. Manage.

6 shows a schematic block diagram of a cascading networking between a BBU and an RRU, the cascading networking 400 including n preamble devices, the n preamble devices, according to an embodiment of the present invention. Each of the preamble devices is a preamble device as shown in FIG. 2, that is, a link between each of the preamble devices may be as shown in FIG. 2, where n is a positive integer.

Specifically, the connection manner of the cascading networking 400 is as shown in FIG. 6. The cpri slave port of the first preamble device of the n preamble devices is connected to the baseband device, and the nth prequel of the n preamble devices is connected. The cpri main port of the device is connected to the radio device. The cpri slave port of the i th pre-transmission device of the n pre-transmission devices is connected to the cpri main port of the i-1th pre-transmission device. i is a positive integer, 1<i≤n .

It should be understood that each of the preamble devices in the cascading networking 400 according to the embodiment of the present invention may correspond to the preamble device 100 in the embodiment of the present invention, and may correspond to the corresponding body in the method 300 according to the embodiment of the present invention. And the foregoing and other operations and/or functions of the respective modules in each of the preamble devices in the cascading network 400 are respectively implemented in order to implement the respective processes of the respective methods in FIG. It is concise and will not be repeated here.

Therefore, the cascading networking of the embodiment of the present invention includes n pre-transmission devices, and each of the pre-transmission devices includes a cpri main port and a cpri slave port connected through the processing module, and the pre-transmission device receives the higher-level device through the cpri slave port. Maintaining management information, the maintenance management information includes an identifier of the target device, and is used by the baseband device to manage the target device; when the processing module of the pre-transmission device determines that the pre-transmission device is the target device, processing maintenance management information, and obtaining a first response of the response baseband device The information is sent from the port to the first-level device through the cpri. When the processing module determines that the forward device is not the target device, the maintenance management information is sent to the next-level device through the cpri main port, which can avoid using two network management systems. The management of wireless devices and pre-transmission devices leads to complex networking and high equipment costs, and implements the management requirements of baseband devices for pre-transmission devices.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated in one unit. In the unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

A pre-transmission device, the pre-transmission device includes: a common public radio interface cpri slave port, a cpri master port, and a processing module, wherein the cpri master port and the cpri slave port are connected by the processing module,

The cpri slave port is configured to: receive maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the baseband device to manage the target device;

The processing module is used to:

When it is determined that the preamble device is the target device, processing the maintenance management information, obtaining first response information in response to the baseband device, and transmitting, by using the cpri slave port, the first device to the upper-level device Response information,

When it is determined that the pre-transmission device is not the target device, the maintenance management information is sent by the cpri main port to the next-level device.
The forward transmission device according to claim 1, wherein

The cpri main port is configured to receive second response information sent by the next-level device in response to the baseband device, where the second response information is obtained by the target device processing the maintenance management information;

The cpri slave port is configured to send the second response message to the upper-level device.
A forward transmission device according to claim 1 or 2, characterized in that

The pre-transmission device is connected to the baseband device.
A forward transmission device according to any one of claims 1 to 3, characterized in that

The preamble device is connected to a radio frequency device.
A method of transmitting data, characterized in that the method comprises:

The pre-transmission device receives maintenance management information sent by the upper-level device, where the maintenance management information includes an identifier of the target device, where the maintenance management information is used by the baseband device to manage the target device;

When the forward transmission device determines that the forward transmission device is the target device, processing the maintenance management information, obtaining first response information in response to the baseband device, and sending the first response information to the upper-level device ;

When the preamble device determines that the preamble device is not the target device, the maintenance management information is sent to the next level device.
The method of claim 5, wherein the method further comprises:

The pre-transmission device receives the second response information sent by the next-level device in response to the baseband device, where the second response information is obtained by the target device processing the maintenance management information;

The preamble device sends the second response information to the upper level device.
Method according to claim 5 or 6, characterized in that

The preamble device includes: a common public radio interface cpri slave port and a cpri master port;

Receiving, by the cpri slave device, the maintenance management information sent by the upper-level device by using the cpri slave port, and sending the first response information to the upper-level device by using the cpri slave port,

The pre-transmission device sends the maintenance management message to the next-level device through the cpri main port, and receives the second response information sent by the next-level device by using the cpri main port.
A method according to any one of claims 5 to 7, wherein

The pre-transmission device is connected to the baseband device.
A method according to any one of claims 5 to 8, wherein

The preamble device is connected to a radio frequency device.
A cascading networking, wherein the cascading networking includes n preamble devices, each of the n preamble devices being a prequel according to any one of claims 1 to 4. Device, n is a positive integer,

The cpri slave port of the first one of the n forward transmission devices is connected to the baseband device.

The cpri main port of the nth pre-transmission device of the n pre-transmission devices is connected to the radio equipment.

The cpri slave port of the i-th pre-transmission device of the n pre-transmission devices is connected to the cpri main port of the i-1th pre-transmission device, and i is a positive integer, and 1<i≤n.