Data transmission and reception, wavelength configuration method, device and wireless access system

Abstract

The present invention provides a method, device and wireless access system for configuring the reception and transmission of data and wavelength. Specifically, the method for receiving and transmitting data includes: a first optical module receives control information sent by a second optical module; the first optical module adjusts the reception and transmission wavelength according to the control information; the first optical module performs data reception and transmission with the second optical module according to the adjusted reception and transmission wavelength. The present invention solves the problem of resource waste in the wireless access system due to the large number of optical fibers required and the inflexible setting of RRU in the related art, and achieves the beneficial effect of flexible deployment and reduced manual connection costs.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a method and device for configuring data transmission and reception and wavelength, and a wireless access system. Background Art

[0002] At present, one way of wireless access is to connect multiple RRUs point-to-point to the baseband processing unit (BBU), for example, one or more RRUs are connected to one or more BBUs through optical fibers. However, in reality, this method requires the use of multiple long-distance optical fibers due to long distances, which will cause a great waste of optical fiber resources. In addition, with the development of 5G, the number of RRUs will increase significantly, which means that the number of wavelengths will increase significantly. When the number of wavelengths increases, if the RRU side needs to manually find the correct port connection in many wavelength channels, it will be very labor-intensive. In addition, it is necessary to produce optical modules with multiple different wavelengths. For each new RRU, it is necessary to refer to the RRU that has been put online to ensure that the newly added wavelength is different from the one that has been put online, which is very inflexible. The increase in the number of wavelengths also means that CWDM can no longer be used because it occupies too much frequency band resources. Therefore, there is no better solution to the problem of resource waste caused by the large number of optical fibers required and the inflexible setting of RRUs in the wireless access system in the related technology. Summary of the invention

[0003] The embodiments of the present invention provide a data receiving and sending, wavelength configuration method, device and wireless access system, so as to at least solve the problem of resource waste caused by large number of optical fibers required and inflexible RRU setting in the wireless access system in the related art.

[0004] According to one embodiment of the present invention, a method for transmitting and receiving data is provided, including: a first optical module receives control information sent by a second optical module; the first optical module adjusts the transmitting and receiving wavelength according to the control information; and the first optical module transmits and receives data with the second optical module according to the adjusted transmitting and receiving wavelength.

[0005] Optionally, before the first optical module adjusts the receiving and transmitting wavelength according to the control information, the method further includes: the first optical module determines a transmission channel for performing receiving and transmitting the data according to the control information.

[0006] Optionally, the first optical module adjusts the transceiver wavelength to the transceiver wavelength corresponding to the transmission channel according to the control information; and the first optical module performs data transmission and reception on the transmission channel according to the adjusted transceiver wavelength.

[0007] Optionally, the first optical module receives the control information sent by the second optical module, including: the first optical module receives the optical signal sent by the second optical module and parses it; the first optical module obtains the control information according to the auxiliary channel management information AMCC in the parsed optical signal.

[0008] Optionally, when the received optical power corresponding to the first optical module decreases, the first optical module sends correction indication information for correcting the receiving and transmitting wavelength of the second optical module to the corresponding second optical module; when the received optical power corresponding to the second optical module decreases, the first optical module sends correction request information for correcting the receiving and transmitting wavelength to the corresponding second optical module; and the receiving and transmitting wavelength is corrected according to the correction response information fed back by the second optical module.

[0009] Optionally, the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; all the RRUs are connected to the DU via one optical fiber.

[0010] According to one embodiment of the present invention, a wavelength configuration method is provided, including: a second optical module sends control information to a first optical module; wherein the control information is used by the first optical module to adjust the receiving and transmitting wavelength; the second optical module receives an optical signal sent by the first optical module according to the receiving and transmitting wavelength, and performs data reception and transmission with the first optical module.

[0011] Optionally, the control information is also used to determine a transmission channel for performing transmission and reception of the data.

[0012] Optionally, before the second optical module sends the control information to the first optical module, the method further includes: the second optical module sets the control information in auxiliary channel management information AMCC.

[0013] Optionally, the control information further includes: the second optical module configures the transmitting and receiving wavelength for the corresponding first optical module.

[0014] Optionally, when the received optical power corresponding to the second optical module decreases, the second optical module sends correction indication information for the second optical module to correct the transmitting and receiving wavelength to the corresponding first optical module; when the received optical power corresponding to the first optical module decreases, the second optical module sends correction request information for correcting the transmitting and receiving wavelength to the corresponding first optical module; and the transmitting and receiving wavelength is corrected according to the correction response information fed back by the first optical module.

[0015] Optionally, the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; all the RRUs are connected to the DU via one optical fiber.

[0016] According to another embodiment of the present invention, a data transceiver device is provided, including: located in a first optical module, including: a first receiving module, used to receive control information sent by a second optical module; an adjustment module, used to adjust the transceiver wavelength according to the control information; and an execution module, used to execute data reception and transmission with the second optical module according to the adjusted transceiver wavelength.

[0017] According to another embodiment of the present invention, a wavelength configuration device is provided, including: a second optical module, including: a sending module, used to send control information to the first optical module; wherein the control information is used by the first optical module to adjust the receiving and transmitting wavelength; a second receiving module, receiving the optical signal sent by the first optical module according to the receiving and transmitting wavelength, and performing data reception and transmission with the first optical module.

[0018] According to another embodiment of the present invention, a wavelength division multiplexing wireless access architecture is provided, including a first optical module, a second optical module, a first arrayed waveguide grating (AWG), a second AWG, and an optical fiber, wherein the first optical module is coupled and connected to the first AWG, and is used to receive control information sent by the second optical module, adjust the receiving and transmitting wavelengths, and perform data transmission and reception with the second optical module; the second optical module is connected to the second AWG respectively, and is used to send the control information to the first optical module, and perform data transmission and reception with the first optical module; the first AWG is connected to the second AWG via the optical fiber.

[0019] Optionally, the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU.

[0020] According to yet another embodiment of the present invention, a storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any one of the above method embodiments when running.

[0021] According to yet another embodiment of the present invention, there is provided an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0022] By adjusting the receiving and transmitting wavelengths before data transmission, the present invention can solve the problem of resource waste caused by the inflexible RRU setting in the related art. In addition, by using one optical fiber instead of multiple optical fibers, the problem of resource waste caused by the large number of optical fibers required in the related art can be solved. Therefore, the beneficial effects of flexible deployment and reduced manual connection costs are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 It is a hardware structure block diagram of a mobile terminal of a method for sending and receiving data according to an embodiment of the present invention;

[0025] Figure 2 is a flow chart of a method for sending and receiving data according to an embodiment of the present invention;

[0026] Figure 3 is a flow chart of a wavelength configuration method according to an embodiment of the present invention;

[0027] Figure 4 is a structural block diagram of a data transceiver according to an embodiment of the present invention;

[0028] Figure 5 is a structural block diagram of a wavelength configuration device according to an embodiment of the present invention;

[0029] Figure 6 is a structural block diagram of a wavelength division multiplexing wireless access architecture according to an embodiment of the present invention;

[0030] Figure 7 It is a structural block diagram of another wavelength division multiplexing wireless access architecture according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0033] Example 1

[0034] The method embodiment provided in the first embodiment of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal of a data transmission and reception method according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal 10 may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Optionally, the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is for illustration only and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0035] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the data receiving and sending method in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as a magnetic storage device, a flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal 10 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0036] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0037] In this embodiment, a method for sending and receiving data running on the above mobile terminal or network architecture is provided. Figure 2 is a flow chart of a method for sending and receiving data according to an embodiment of the present invention. Figure 2 As shown, the process includes the following steps:

[0038] Step S202, the first optical module receives control information sent by the second optical module;

[0039] Step S204, the first optical module adjusts the transmitting and receiving wavelengths according to the control information;

[0040] Step S206: the first optical module transmits and receives data with the second optical module according to the adjusted transmitting and receiving wavelength.

[0041] Optionally, the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; all the RRUs are connected to the DU via one optical fiber.

[0042] Specifically, the first optical module is connected to the second optical module via an arrayed waveguide grating (AWG), and the AWG on the first optical module side is connected to the AWG on the second optical module side via an optical fiber.

[0043] Optionally, before the first optical module adjusts the receiving and transmitting wavelength according to the control information, the method further includes: the first optical module determines a transmission channel for performing receiving and transmitting the data according to the control information.

[0044] Optionally, the first optical module adjusts the transceiver wavelength to the transceiver wavelength corresponding to the transmission channel according to the control information; and the first optical module performs data transmission and reception on the transmission channel according to the adjusted transceiver wavelength.

[0045] Optionally, the first optical module receives the control information sent by the second optical module, including: the first optical module receives the optical signal sent by the second optical module and parses it; the first optical module obtains the control information according to the auxiliary channel management information AMCC in the parsed optical signal.

[0046] Specifically, one way to implement AMCC is to use top modulation technology, that is, to perform secondary amplitude modulation on the modulated signal and add control messages. AMCC can also implement out-of-band control messages in other ways. It should be noted that when using AMCC, the transmission and reception of data will not be interrupted.

[0047] Optionally, when the received optical power corresponding to the first optical module decreases, the first optical module sends correction indication information for correcting the receiving and transmitting wavelength of the second optical module to the corresponding second optical module; when the received optical power corresponding to the second optical module decreases, the first optical module sends correction request information for correcting the receiving and transmitting wavelength to the corresponding second optical module; and the receiving and transmitting wavelength is corrected according to the correction response information fed back by the second optical module.

[0048] Specifically, if the received optical power corresponding to the first optical module decreases, the wavelength of the second module's transceiver wavelength shifts. Therefore, the transceiver wavelength of the second optical module needs to be adjusted. Therefore, the first optical module needs to send correction instruction information to the second optical module to adjust the transceiver wavelength of the second optical module until the received optical power corresponding to the first optical module returns to the original level.

[0049] Specifically, if the received optical power corresponding to the second optical module itself decreases, the wavelength of the first optical module may drift. In this case, if the first optical module does not receive any correction information sent by the second optical module, or the correction information sent by the second optical module is incomplete, the first optical module will actively send a correction request message to the second optical module, and correct its own wavelength after receiving the feedback correction response information.

[0050] Through the above steps, the problem of resource waste caused by large number of optical fibers required and inflexible RRU settings in the wireless access system in the related technology is solved, and the beneficial effects of flexible deployment and reduced manual connection costs are achieved.

[0051] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0052] Example 2

[0053] In this embodiment, a method for sending and receiving data running on the above mobile terminal or network architecture is provided. Figure 3 is a flow chart of a wavelength configuration method according to an embodiment of the present invention. Figure 3As shown, the process includes the following steps:

[0054] Step S302, the second optical module sends control information to the first optical module; wherein the control information is used by the first optical module to adjust the transmitting and receiving wavelengths;

[0055] Step S304: the second optical module receives the optical signal sent by the first optical module according to the receiving and transmitting wavelength, and performs data transmission and reception with the first optical module.

[0056] Optionally, the control information is also used to determine a transmission channel for performing transmission and reception of the data.

[0057] Optionally, before the second optical module sends the control information to the first optical module, the method further includes: the second optical module sets the control information in auxiliary channel management information AMCC.

[0058] Optionally, the control information further includes: the second optical module configures the transmitting and receiving wavelength for the corresponding first optical module.

[0059] Optionally, when the received optical power corresponding to the second optical module decreases, the second optical module sends correction indication information to the corresponding first optical module for the first optical module to correct the transmitting and receiving wavelength; when the received optical power corresponding to the first optical module decreases, the second optical module sends correction request information to the corresponding first optical module for correcting the transmitting and receiving wavelength; and the transmitting and receiving wavelength is corrected according to the correction response information fed back by the first optical module.

[0060] Specifically, the second optical module in this embodiment may have a fixed transceiver wavelength, in which case the transceiver wavelength of the second optical module will not drift. Therefore, the received optical power corresponding to the first optical module will not decrease.

[0061] In addition, the receiving and transmitting wavelength of the second optical module in this embodiment can also be adjusted to the wavelength of any channel. In this case, the receiving and transmitting wavelength of the second optical module may drift.

[0062] Specifically, if the received optical power corresponding to the second optical module decreases, the wavelength of the first module's transceiver wavelength shifts. Therefore, the transceiver wavelength of the first optical module needs to be adjusted. Therefore, the second optical module at this time needs to send correction instruction information to the first optical module to adjust the transceiver wavelength of the first optical module until the received optical power corresponding to the second optical module returns to the original level.

[0063] Specifically, if the received optical power corresponding to the first optical module itself decreases, the wavelength of the second optical module may drift. In this case, if the second optical module does not receive any correction information sent by the first optical module, or the correction information sent by the first optical module is incomplete, the second optical module will actively send correction request information to the first optical module, and correct its own wavelength after receiving the feedback correction response information.

[0064] Optionally, the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; all the RRUs are connected to the DU via one optical fiber.

[0065] Example 3

[0066] In this embodiment, a data transceiver device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0067] Figure 4 is a structural block diagram of a data transceiver according to an embodiment of the present invention. Figure 4 As shown, the device includes: a first receiving module 42 , an adjusting module 44 and an executing module 46 .

[0068] A first receiving module 42, used to receive control information sent by the second optical module;

[0069] An adjustment module 44, configured to adjust the transmitting and receiving wavelengths according to the control information;

[0070] The execution module 46 is used to perform data transmission and reception with the second optical module according to the adjusted transmission and reception wavelength.

[0071] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0072] Example 4

[0073] In this embodiment, a wavelength configuration device is also provided, which is used to implement the above embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0074] Figure 5 is a structural block diagram of a wavelength configuration device according to an embodiment of the present invention, such as Figure 4 As shown, the device includes: a sending module 52 and a second receiving module 54.

[0075] A sending module 52, used to send control information to the first optical module; wherein the control information is used by the first optical module to adjust the transmitting and receiving wavelengths;

[0076] The second receiving module 54 receives the optical signal sent by the first optical module according to the receiving and transmitting wavelength, and performs data transmission and reception with the first optical module.

[0077] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0078] Example 5

[0079] In this embodiment, a wavelength division multiplexing wireless access architecture is also provided. The system is used to implement the above embodiments and preferred implementation modes, and those that have been explained will not be repeated here.

[0080] Figure 6 is a structural block diagram of a wavelength division multiplexing wireless access architecture according to an embodiment of the present invention. Figure 6 As shown, the device includes: a first optical module 61, a second optical module 62, a first AWG 63, a second AWG 64, and an optical fiber 65, wherein the first optical module 61 is coupled and connected with the first AWG 63, and is used to receive control information sent by the second optical module 62, adjust the receiving and transmitting wavelength, and perform data transmission and reception with the second optical module 62; the second optical module 62 is connected with the second AWG 64 respectively, and is used to send the control information to the first optical module 61, and perform data transmission and reception with the first optical module 61; the first AWG 63 is connected with the second AWG 64 through the optical fiber 65.

[0081] Figure 7is a structural block diagram of another wavelength division multiplexing wireless access architecture according to an embodiment of the present invention. Figure 7 As shown, the device Figure 6 In addition to the wavelength division multiplexing wireless access architecture included in the invention, the number of the first optical modules 61 is the same as the number of the second optical modules 62, each of the first optical modules 61 is connected to a radio remote unit RRU 71, and the second optical module 62 is located in a distributed unit DU 72.

[0082] Example 5

[0083] An embodiment of the present invention further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0084] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0085] S1, the first optical module receives control information sent by the second optical module;

[0086] S2, the first optical module adjusts the transmitting and receiving wavelengths according to the control information;

[0087] S3, the first optical module performs data transmission and reception with the second optical module according to the adjusted transmission and reception wavelength.

[0088] Optionally, the storage medium is further configured to store a computer program for performing the following steps:

[0089] S1, the second optical module sends control information to the first optical module, wherein the control information is used by the first optical module to adjust the transmitting and receiving wavelengths;

[0090] S2, the second optical module receives the optical signal sent by the first optical module according to the receiving and transmitting wavelength, and performs data transmission and reception with the first optical module.

[0091] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0092] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0093] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0094] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0095] S1, the first optical module receives control information sent by the second optical module;

[0096] S2, the first optical module adjusts the transmitting and receiving wavelengths according to the control information;

[0097] S3, the first optical module performs data transmission and reception with the second optical module according to the adjusted transmission and reception wavelength.

[0098] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0099] S1, the second optical module sends control information to the first optical module, wherein the control information is used by the first optical module to adjust the transmitting and receiving wavelengths;

[0100] S2, the second optical module receives the optical signal sent by the first optical module according to the receiving and transmitting wavelength, and performs data transmission and reception with the first optical module.

[0101] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0102] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, and optionally, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0103] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for sending and receiving data, characterized in that: include: The first optical module receives control information sent by the second optical module, wherein the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; all the RRUs are connected to the DU through an optical fiber; The first optical module adjusts the transmitting and receiving wavelengths according to the control information; The first optical module performs data transmission and reception with the second optical module according to the adjusted transmission and reception wavelength.

2. The method according to claim 1, characterized in that Before the first optical module adjusts the transmitting and receiving wavelength according to the control information, the method further includes: The first optical module determines a transmission channel for performing transmission and reception of the data according to the control information.

3. The method according to claim 2, characterized in that The method further comprises, The first optical module adjusts the transceiver wavelength to the transceiver wavelength corresponding to the transmission channel according to the control information; The first optical module performs data transmission and reception on the transmission channel according to the adjusted transmission and reception wavelength.

4. The method according to any one of claims 1 to 3, characterized in that: The first optical module receiving the control information sent by the second optical module includes: The first optical module receives the optical signal sent by the second optical module and performs analysis; The first optical module obtains the control information according to auxiliary channel management information AMCC in the parsed optical signal.

5. A wavelength configuration method, characterized in that: include: The second optical module sends control information to the first optical module, wherein the control information is used for the first optical module to adjust the receiving and transmitting wavelengths, the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; all the RRUs are connected to the DU through one optical fiber; The second optical module receives the optical signal sent by the first optical module according to the transceiver wavelength, and performs data transmission and reception with the first optical module.

6. The method according to claim 5, characterized in that The control information is also used to determine a transmission channel for performing transmission and reception of the data.

7. The method according to claim 5 or 6, characterized in that: Before the second optical module sends the control information to the first optical module, the method further includes: The second optical module sets the control information in auxiliary channel management information AMCC.

8. The method according to claim 5 or 6, characterized in that: The control information also includes: the second optical module configures the transmitting and receiving wavelength for the corresponding first optical module.

9. A data transceiver, characterized in that: Located in the first optical module, including: A first receiving module, used to receive control information sent by a second optical module, wherein the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; all the RRUs are connected to the DU via one optical fiber; An adjustment module, used for adjusting the transmitting and receiving wavelengths according to the control information; An execution module is used to perform data transmission and reception with the second optical module according to the adjusted transmission and reception wavelength.

10. A wavelength configuration device, characterized in that: Located in the second optical module, including: A sending module, used to send control information to a first optical module; wherein the control information is used by the first optical module to adjust the transmitting and receiving wavelengths, the number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; all the RRUs are connected to the DU via one optical fiber; The second receiving module receives the optical signal sent by the first optical module according to the receiving and transmitting wavelength, and performs data transmission and reception with the first optical module.

11. A wavelength division multiplexing wireless access system, characterized in that: It includes a first optical module, a second optical module, a first arrayed waveguide grating AWG, a second AWG, and an optical fiber, wherein: The first optical module is coupled to the first AWG and is used to receive control information sent by the second optical module, adjust the receiving and transmitting wavelengths, and perform data transmission and reception with the second optical module; The second optical module is connected to the second AWG respectively, and is used to send the control information to the first optical module, and perform data transmission and reception with the first optical module; The number of the first optical modules is the same as the number of the second optical modules, each of the first optical modules is connected to a remote radio unit RRU, and the second optical module is located in a distributed unit DU; The first AWG is connected to the second AWG via the one optical fiber.

12. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the method described in any one of claims 1 to 8 when running.

13. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 1 to 8.

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