WO2017185329A1

WO2017185329A1 - Data transmission method, remote node, and control node

Info

Publication number: WO2017185329A1
Application number: PCT/CN2016/080663
Authority: WO
Inventors: 周凯捷; 邓天乐
Original assignee: 华为技术有限公司
Priority date: 2016-04-29
Filing date: 2016-04-29
Publication date: 2017-11-02

Abstract

The embodiments of the invention provide a data transmission method, a remote node, and a control node. The data transmission method comprises: after performing a physical layer process on first data, a remote node determines according to a process result whether the physical layer process with respect to the first data has been successfully completed; if so, the remote node transmits the data generated after a successful physical layer process as second data; otherwise, the remote node transmits the data generated after an unsuccessful physical layer process as third data. In the method, when the remote node transmits the second data, since bandwidth required for transmitting the data generated after the physical layer process is less than that for transmitting the unprocessed data, a fronthaul overhead can be reduced, increasing efficiency of data transmission; whereas when the remote node transmits the third data, the data not yet processed by the physical layer process is transmitted, increasing a multilink processing gain.

Description

Data transmission method, remote node and control node

Technical field

The embodiments of the present invention relate to communication technologies, and in particular, to a data transmission method, a remote node, and a control node.

Background technique

With the development of mobile Internet, Cloud Radio Access Network (CRAN) is more and more widely used for data transmission.

In the CRAN, a plurality of remote nodes (RNs) are connected to a CRAN Control Node (CRAN Controller) by wire or wirelessly. During data transmission, the RN converts the received analog signal into a digital signal and sends it to the CRAN control node. The CRAN control node jointly processes the digital signals sent by multiple RNs, such as interference cancellation, multi-user multiple input multiple output (Multi -User Multiple-Input Multiple-Output, MU-MIMO) detection, etc., to improve reception performance.

In the above data transmission method, the load between the RN and the CRAN control node is relatively high. However, the higher the transmission rate, the higher the load on the fronthaul. As the number of antennas and the transmission bandwidth increase, the amount of data that needs to be transmitted between the RN and the CRAN becomes larger and larger, resulting in a higher load on the fronthaul, which eventually leads to a longer time required to transmit data.

Summary of the invention

The embodiment of the invention provides a data transmission method, a remote node and a control node, and the node transmits data to the control node according to the CRC check result, and reduces the time required for transmitting the data.

On the one hand, the embodiment of the present invention provides a data transmission method, which is described from the perspective of a remote node. In the method, after the remote node performs physical layer processing on the first data, it determines whether the success is successful according to the processing result. The first data completes the physical layer processing. If the data is successfully completed, the second data is sent, that is, the data processed by the physical layer is successfully completed; otherwise, the third data is sent, that is, the data processed by the physical layer is not successfully completed. With this method, when the remote node sends the second data, since the bandwidth required for data transmission through the physical layer is smaller than the data that is not processed by the physical layer, The fronthaul overhead is mitigated and the impact of data transmission is improved. When the remote node sends the third data, that is, the data that has not been processed by the physical layer is sent, the multi-link processing gain can be improved.

In a possible implementation manner, the remote node performs physical layer processing on the first data to obtain a processing result, and the method includes: the remote node sequentially performs multiple input multiple output MIMO receiving processing on the first data, And channel decoding; the remote node obtains the processing result according to the channel decoding. Optionally, the second data includes data that is decoded through the channel. Optionally, the third data includes: data that has undergone the MIMO receiving process but is not decoded by the channel; or data that has not undergone the MIMO receiving process.

In a possible implementation manner, if the remote node determines that the physical layer processing of the first data is not successfully completed, before receiving the third data to the control node, the control node is further received. Sending the first indication information; sending the third data according to the first indication information; wherein the first indication information indicates that the remote node sends the MIMO receiving process, but does not pass the Channel-decoded data; or, transmitting the data that has not undergone the MIMO reception process.

In a possible implementation manner, the remote node performs physical layer processing on the first data, and before receiving the processing result, receiving the second indication information sent by the control node, where the second indication information indicates the The remote node performs physical layer processing on the first data.

On the other hand, an embodiment of the present invention provides a data transmission method, which is described from the perspective of a control node.

The control node receives the data sent by the remote node according to the processing result and processes the data, and the processing result is obtained by the remote node performing physical layer processing on the first data; wherein, if the processing result indicates the remote end After the node successfully completes physical layer processing on the first data, the data is second data; if the processing result indicates that the remote node does not successfully complete physical layer processing on the first data, The data is the third data. With this method, when the control node receives the second data, since the bandwidth required for data transmission through the physical layer is smaller than the data that is not processed by the physical layer, the fronthaul overhead can be alleviated and the influence of data transmission can be improved; When the third data is received, that is, when data that has not been processed by the physical layer is transmitted, the multilink processing gain can be improved.

In a possible implementation manner, the processing result is that the remote node sequentially performs multiple input multiple output MIMO receiving processing and channel decoding on the first data, according to the channel translation. The code is obtained. Optionally, the second data includes data that is decoded through the channel. Optionally, the third data includes: data that has undergone the MIMO receiving process but is not decoded by the channel; or data that has not undergone the MIMO receiving process.

In a possible implementation, the control node sends the first indication information to the remote node before receiving the data sent by the remote node according to the processing result, where the first indication information indicates the remote node Transmitting the data that has undergone the MIMO reception process but has not been decoded by the channel; or transmits the data that has not undergone the MIMO reception process.

In a possible implementation, the control node sends the second indication information to the remote end before receiving the data sent by the remote node according to the processing result, where the second indication information indicates the remote node pair The first data is subjected to physical layer processing.

In a further aspect, the embodiment of the present invention provides a remote node, including:

a processing module, configured to perform physical layer processing on the first data, obtain a processing result, and determine, according to the processing result, whether the physical layer processing of the first data is successfully completed;

The transceiver module is configured to: if the processing module determines that the physical layer processing of the first data is successfully completed, send the second data to the control node; if the processing module determines that the first data is not successfully completed Physical layer processing, sending third data to the control node;

The second data is obtained by the remote node successfully completing the physical layer processing on the first data, and the third data is that the remote node does not successfully complete the first data. The physical layer processing is obtained.

In a possible implementation, the processing module is specifically configured to sequentially perform multiple input multiple output MIMO receiving processing on the first data, and channel decoding; and obtain the processing result according to the channel decoding. .

In a possible implementation manner, the second data includes data that is decoded through the channel.

In a possible implementation manner, the third data includes: data that is processed by the MIMO receiving process but is not decoded by the channel; or data that has not undergone the MIMO receiving process.

In a possible implementation, the transceiver module determines, after the processing module determines that the physical layer processing of the first data is not successfully completed, and sends the third data to the control node, and receives the sending by the control node. First indication information; sending the third data according to the first indication information;

The first indication information indicates that the remote node sends the MIMO connection Data that is processed but not decoded by the channel; or, the data that has not undergone the MIMO reception process is transmitted.

In a possible implementation manner, the transceiver module is further configured to: before the processing module performs physical layer processing on the first data, and obtain a processing result, receive the second indication information sent by the control node, where The second indication information indicates that the remote node performs physical layer processing on the first data.

In still another aspect, an embodiment of the present invention provides a control node, including:

a transceiver module, configured to receive data sent by the remote node according to the processing result, where the processing result is obtained by the remote node performing physical layer processing on the first data;

a processing module, configured to process the data;

If the processing result indicates that the remote node successfully completes physical layer processing on the first data, the data is second data; if the processing result indicates that the remote node does not successfully complete the pair The physical layer processing of the first data, then the data is third data.

In a possible implementation manner, the processing result is obtained by the remote node sequentially performing multiple input multiple output MIMO receiving processing and channel decoding on the first data according to the channel decoding.

In a possible implementation manner, the third data includes:

Data that has undergone the MIMO reception process but has not been decoded by the channel; or data that has not undergone the MIMO reception process.

In a possible implementation manner, the transceiver module is further configured to send first indication information to the remote node before receiving the data sent by the remote node according to the processing result, where the first indication information indicates The remote node transmits the data that has undergone the MIMO reception process but has not been decoded by the channel; or transmits the data that has not undergone the MIMO reception process.

In a possible implementation manner, before receiving the data sent by the remote node according to the processing result, the transceiver module is further configured to send the second indication information to the remote end, where the second indication information indicates the The remote node performs physical layer processing on the first data.

In another aspect, an embodiment of the present invention provides a remote node, including: a processor, a memory, a communication interface, and a system bus, where the memory and the communication interface are connected to the processor through the system bus and complete each other. Inter-communication, the memory is used to store computer execution An instruction to communicate with other devices for executing the computer to execute instructions to cause the remote node to perform various steps of the method as applied to the remote node as above.

In another aspect, an embodiment of the present invention provides a control node, a processor, a memory, a communication interface, and a system bus, where the memory and the communication interface are connected to the processor through the system bus and complete communication with each other. The memory is for storing computer execution instructions, the communication interface is for communicating with other devices, and the processor is configured to run the computer to execute instructions to cause the control node to perform the method as applied to the control node as above Each step.

In another aspect, an embodiment of the present invention provides a remote node, where the remote node has a function of implementing behavior of a first remote node in the foregoing method design. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more units corresponding to the functions described above.

In one possible design, the structure of the remote node includes a processor and a transmitter configured to support the first remote node to perform the corresponding function in the above method. The transmitter is configured to support communication between the remote node and the terminal, and send information or instructions involved in the foregoing method to the terminal. The remote node may also include a memory for coupling with the processor that holds the necessary program instructions and data for the remote node.

In another aspect, an embodiment of the present invention provides a control node, which has a function of implementing a behavior of a control node in the design of the foregoing method. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more units corresponding to the functions described above. The module can be software and/or hardware

In one possible design, the structure of the control node includes a receiver and a processor configured to support the control node to perform the corresponding functions in the above methods. The transmitter is configured to support communication between the control node and the base station, and receive information or instructions involved in the foregoing method sent by the base station. The control node can also include a memory for coupling with the processor that stores the necessary program instructions and data for the base station.

In another aspect, an embodiment of the present invention provides a communication system, including the remote node and the control node in the foregoing aspect.

In another aspect, an embodiment of the present invention provides a computer storage medium for storing the foregoing Computer software instructions for use by the remote node, including programs designed to perform the above aspects.

In another aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use by the control node, including a program designed to perform the above aspects.

In another aspect, an embodiment of the present invention provides a chip system, including: at least one processor, a memory, an input/output portion, and a bus; and the at least one processor acquires an instruction in the memory through the bus to use The implementation of the above method involves the design function of the remote node.

In another aspect, an embodiment of the present invention provides a chip system, including: at least one processor, a memory, an input/output portion, and a bus; and the at least one processor acquires an instruction in the memory through the bus to use The design function of the control node involved in implementing the above method.

The embodiment of the present invention provides a data transmission method, a remote node, and a control node. After the remote node performs physical layer processing on the first data, it determines whether the physical layer processing is successfully completed on the first data according to the processing result. Then, the second data is sent, that is, the data processed by the physical layer is successfully completed; otherwise, the third data is sent, that is, the data processed by the physical layer is not successfully completed. With this method, when the remote node sends the second data, since the bandwidth required for data transmission through the physical layer is smaller than the data that is not processed by the physical layer, the fronthaul overhead can be alleviated and the impact of data transmission can be improved; When the end node sends the third data, that is, when the data that has not been processed by the physical layer is sent, the multilink processing gain can be improved.

DRAWINGS

1 is a schematic diagram of a CRAN network architecture to which the data transmission method of the present invention is applied;

2 is a signaling diagram of Embodiment 1 of a data transmission method according to the present invention;

3 is a schematic diagram of network function division of an RN and a CRAN control node in a data transmission method according to the present invention;

4 is a schematic structural diagram of Embodiment 1 of a remote node according to the present invention;

FIG. 5 is a schematic structural diagram of Embodiment 1 of a control node according to the present invention; FIG.

6 is a schematic structural diagram of Embodiment 2 of a remote node according to the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 2 of a control node according to the present invention.

detailed description

Currently, in CRAN, the CRAN control node and the RN pass the common public wireless interface. (Common Public Radio Interface, CPRI) connection. In the communication process, the RN receives the analog signal sent by the terminal, and converts the analog signal into a digital signal; then, the digital signal is sent to the CRAN control node, and the CRAN control node jointly processes the digital signals sent by the multiple RNs, such as interference cancellation. , MU-MIMO detection, etc. When the quality of the analog signal received by the RN is relatively good, the control node does not have much gain for the combination of the digital signals of the plurality of RNs; and if the quality of the analog signal received by the RN is relatively poor, the control node pairs The digital signals of multiple RNs are physically layered and the burden is heavy. For example, when the receiving antenna of the RN is two, and the transmission bandwidth is 20M and 10 bits, the transmission rate between the RN and the CRAN control node is 2.46 GHZ. However, the higher the transmission rate, the higher the load on the fronthaul. As the number of antennas and the transmission bandwidth increase, the amount of data that needs to be transmitted between the RN and the CRAN is increasing, resulting in a higher load on the fronthaul. In this case, if a digital signal is directly transmitted to the CRAN control node, the time required to transmit the data becomes long.

In view of this, the embodiments of the present invention provide a data transmission method, a remote node, and a control node, and the node transmits data to the CRAN control node according to whether the physical layer processing is successfully completed, and reduces the time required for transmitting the data.

The data transmission method provided by the embodiment of the present invention is applicable to a CRAN network, a Coordinated Multiple Points Transmission/Reception (CoMP) network, etc., and the following applies the data transmission method according to the embodiment of the present invention to a CRAN network. The invention will be described in detail by way of example. Specifically, see Figure 1.

FIG. 1 is a schematic diagram of a CRAN network architecture to which the data transmission method of the present invention is applied. Referring to FIG. 1, in the embodiment of the present invention, at least one CRAN control node may be set in the CRAN, where the CRAN control node is connected to at least one RN through a wired or wireless link, and the RN is used to receive data sent by the terminal and control the CRAN. The node sends data; the CRAN is used to receive and process the data sent by the RN. The CRAN control node may also be referred to as a central node (Central Node), a control node, etc., and the CRAN control node and the RN are devices having complete physical layer processing capabilities. The physical layer processing capability refers to MIMO reception processing, demodulation, channel decoding, and the like of data. In addition, when there are a plurality of CRAN control nodes, each CRAN control node can also communicate with each other. Next, the data transmission method of the present invention will be described in detail based on FIG. 1. Specifically, FIG. 2 can be referred to.

FIG. 2 is a signaling diagram of Embodiment 1 of a data transmission method according to the present invention. In this embodiment, the remote node Interact with the control node for scenarios where data transfer time needs to be reduced. Specifically, the embodiment includes the following steps:

101. The remote node performs physical layer processing on the first data to obtain a processing result.

In the embodiment of the present invention, the RN has complete physical layer processing capability. Specifically, reference may be made to FIG. 3, which is a schematic diagram of network function division of RN and CRAN control nodes in the data transmission method of the present invention. Referring to FIG. 3, in the embodiment of the present invention, the network function of the RN includes: radio frequency (RF) function, physical layer (PHY) processing function, and the like; the network function of the CRAN control node includes: PHY processing function, Medium Access Control (MAC) function, Radio Link Control (RLC) function, Packet Data Convergence Protocol (PDCP) processing function, and Radio Resource Control (Radio Resource Control, RRC) function, etc.

In this step, the remote node performs a physical layer processing on the digital data obtained by analog-to-digital conversion of the analog signal of the received terminal, that is, the first data, to obtain a processing result, and the processing result indicates whether the RN is Successfully completed the physical layer processing for the first data.

The remote node determines, according to the processing result, whether the physical layer processing of the first data is successfully completed. If the processing result indicates that the remote node successfully completes the physical layer processing on the first data, step 103 is performed; If the processing result indicates that the remote node does not successfully complete the physical layer processing on the first data, step 104 is performed.

In this step, the RN determines whether the physical layer processing is successfully performed on the first data according to the processing result.

103. The remote node sends the second data to the control node.

If the remote node determines that the physical layer processing of the first data is successfully completed in step 102, in this step, the second data is sent to the control node, that is, the data obtained by the physical layer processing is successfully completed for the first data; The control node receives the second data.

104. The remote node sends the third data to the control node.

If the remote node determines that the physical layer processing of the first data is not successfully completed, in this step, the third data is sent to the control node, that is, the data obtained by the physical layer processing is not successfully completed for the first data; Correspondingly, the control node receives the third data.

105. The control node processes the data.

In this step, the control node processes the received data. For example, if the received data is the second data, it is not necessary to perform physical layer processing on the second data, but directly on the second data. Processing, such as forwarding to a higher layer in the protocol stack, etc.; if the received data is the third data, performing physical layer processing on the third data, and the like.

The data transmission method provided by the example of the present invention, after the remote node performs the physical layer processing on the first data, determines whether the physical layer processing is successfully completed on the first data according to the processing result, and if the data is successfully completed, the second data is successfully sent. The data processed by the physical layer; otherwise, the third data is sent, that is, the data processed by the physical layer is not successfully completed. When the remote node sends the second data, the bandwidth required for the data transmitted through the physical layer is smaller than the data that is not processed by the physical layer, so that the fronthaul overhead can be mitigated and the impact of the data transmission is improved; In the case of three data, that is, when data that has not been processed by the physical layer is transmitted, the multilink processing gain can be improved.

Optionally, in the foregoing embodiment, the remote node performs physical layer processing on the first data to obtain a processing result. Specifically, the remote node sequentially performs multiple input multiple output MIMO receiving processing on the first data, and performs channel translation. a code; according to the channel decoding, the processing result is obtained. The processing result is, for example, a Cyclic Redundancy Code (CRC) check result or the like.

When the processing result indicates that the RN successfully completes the physical layer processing on the first data (it can be understood that the physical layer successfully receives the first data), for example, when the CRC check result is correct, it indicates that the quality of the data received by the RN is good. The RN successfully completes the physical layer processing on the data. In this case, the RN sends the second data to the control node, that is, the data processed by the physical layer is successfully completed. For example, when the RN uses 1/3 channel coding, if the RN directly sends the control node without processing layer processing, that is, the bandwidth required for data that has not undergone channel decoding is B. Then, in this step, after the physical layer processing of the data by the RN node, the bandwidth of the data processed by the physical layer is B/3, and the transmission bandwidth is reduced to some extent, thereby reducing the fronthaul overhead.

When the processing result indicates that the RN does not successfully complete the physical layer processing on the first data, that is, the physical layer check error occurs, for example, when the CRC check result is incorrect, the quality of the data received by the RN is not good, and the RN does not have the data. Successful completion of physical layer processing. In this case, the RN sends the third data to the control node, that is, the data that has not been processed by the physical layer. For example, the RN sends data that has not undergone MIMO reception processing to the control node. At this time, after receiving the data that has not been processed by the MIMO reception, the control node collects data that has not undergone MIMO reception processing, and data association of other remote nodes. Processing, thereby combining data of multiple RNs, obtaining multi-antenna processing gain, that is, obtaining MIMO processing gain, improving the quality of data reception. For another example, the RN sends data that has undergone MIMO reception processing but is not channel-decoded to the control node. At this time, the control node receives the MIMO reception area. Data that has not been channel-decoded, and combines data processed by MIMO reception but not channel-decoded, and data of other remote nodes to combine data of multiple RNs; or, control node pair After MIMO reception processing, but not channel-decoded data, and buffered data joint processing, the buffered data is data received before receiving the MIMO reception processing but not channel-decoded data. Thereby, the data transmitted multiple times is combined to obtain the channel decoding gain, and the quality of data reception is improved.

It should be noted that, if the remote node determines that the physical layer processing of the first data is not successfully completed, the third data finally sent by the remote node is processed by MIMO, but is not channel-decoded. Data, or data that has not been processed by MIMO, can be configured by the control node. Specifically, before the remote node sends the third data to the control node, the control node sends the first indication information to the remote node; correspondingly, the remote node receives the first indication information sent by the control node; Transmitting, by the first indication information, the third data, where the first indication information indicates that the remote node sends the data that is processed by the MIMO receiving process but has not been decoded by the channel; or, the sending station The data that has not undergone the MIMO reception process is described.

In summary, in the example of the present invention, when the quality of the data received by the RN is good, the RN performs physical layer processing on the data, and sends data that successfully completes the physical layer processing to the control node, which can save Fronthaul; When the quality of the received data of the terminal is poor, the RN may send the data that has not successfully completed the physical layer processing to the control node, so that the control node may combine the data of multiple RNs or the data transmitted multiple times, thereby improving the quality of data reception.

In addition, the remote node performing the foregoing method may be triggered by the control node, that is, if the remote node does not receive the trigger of the control node, the foregoing method is not executed, but the first data is sent according to the existing process, and if When the remote node receives the trigger of the control node, the embodiment of the present invention is executed. Before the remote end performs the physical layer processing on the first data to obtain the processing result, the second indication information sent by the control node is further received, where the second indication information indicates that the remote node performs physical physics on the first data. Layer processing.

FIG. 4 is a schematic structural diagram of Embodiment 1 of a remote node according to the present invention. The remote node provided in this embodiment can implement various steps of the method applied to the remote node provided by any embodiment of the present invention. Specifically, the remote node provided in this embodiment includes:

The processing module 11 is configured to perform physical layer processing on the first data, obtain a processing result, and determine, according to the processing result, whether the physical layer processing of the first data is successfully completed.

The transceiver module 12 is configured to: if the processing module 11 determines that the physical layer processing of the first data is successfully completed, send the second data to the control node; if the processing module 11 determines that the The physical layer processing of the first data, the third data is sent to the control node;

The remote node provided by the embodiment of the present invention performs physical layer processing on the first data, and determines whether the physical layer processing is successfully performed on the first data according to the processing result. If the remote data is successfully completed, the second data is successfully sent, that is, the physical layer is successfully completed. The processed data; otherwise, the third data is sent, that is, the data processed by the physical layer is not successfully completed. When the remote node sends the second data, the bandwidth required for the data transmitted through the physical layer is smaller than the data that is not processed by the physical layer, so that the fronthaul overhead can be mitigated and the impact of the data transmission is improved; In the case of three data, that is, when data that has not been processed by the physical layer is transmitted, the multilink processing gain can be improved.

Optionally, in an embodiment of the present invention, the processing module 11 is specifically configured to sequentially perform multiple input multiple output MIMO receiving processing on the first data, and channel decoding; according to the channel decoding, The processing result.

Optionally, in an embodiment of the invention, the second data includes data that is decoded through the channel.

Optionally, in an embodiment of the present invention, the third data includes:

Data that has undergone the MIMO reception process but has not been decoded by the channel;

or,

Data that has not been processed by the MIMO reception.

Optionally, in an embodiment of the present invention, the transceiver module 12 determines, before the processing module 11 determines that the physical layer processing of the first data is not successfully completed, and sends the third data to the control node, before receiving the third data. Transmitting the first indication information sent by the control node; and sending the third data according to the first indication information;

The first indication information indicates that the remote node sends the data that has undergone the MIMO receiving process but has not been decoded by the channel; or sends the data that has not undergone the MIMO receiving process.

Optionally, in an embodiment of the invention, the transceiver module 12 is further configured to be in the processing module The block 11 performs physical layer processing on the first data, and receives the second indication information sent by the control node before the processing result is obtained, where the second indication information indicates that the remote node performs physical layer processing on the first data. .

FIG. 5 is a schematic structural diagram of Embodiment 1 of a control node according to the present invention. The control node provided in this embodiment can implement various steps of the method applied to the control node provided by any embodiment of the present invention. Specifically, the control node provided in this embodiment includes:

The transceiver module 21 is configured to receive data that is sent by the remote node according to the processing result, where the processing result is obtained by performing physical layer processing on the first data by the remote node;

a processing module 22, configured to process the data;

The control node provided by the embodiment of the present invention receives the data sent by the remote node, and the data may be the second data obtained by the remote node after the first data successfully completes the physical layer processing, or the remote node is not the first. The third data obtained after the data is successfully processed by the physical layer. When the data is the second data, since the bandwidth required for data transmission through the physical layer is smaller than the data that is not processed by the physical layer, the fronthaul overhead is reduced and the impact of data transmission is improved; when the data is the third data, That is, when data that has not been processed by the physical layer is transmitted, the multilink processing gain can be improved.

Optionally, in an embodiment of the present invention, the processing result is that the remote node performs multiple input multiple output MIMO receiving processing and channel decoding on the first data, and then obtains according to the channel decoding. of.

Optionally, in an embodiment of the present invention, the third data includes:

or,

Data that has not been processed by the MIMO reception.

Optionally, in an embodiment of the present invention, the transceiver module 21 is further configured to send the first indication information to the remote node before receiving the data sent by the remote node according to the processing result, where The first indication information indicates that the remote node sends the data that has undergone the MIMO reception process but has not been decoded by the channel; or transmits the data that has not undergone the MIMO reception process.

Optionally, in an embodiment of the present invention, the transceiver module 21 is configured to send second indication information to the remote end before receiving the data sent by the remote node according to the processing result, where the second indication is The information indicates that the remote node performs physical layer processing on the first data.

FIG. 6 is a schematic structural diagram of Embodiment 2 of a remote node according to the present invention. The remote node 300 provided by the present example includes a processor 31, a memory 32, a communication interface 33, and a system bus 34. The memory 32 and the communication interface 33 are connected to the processor 31 via the system bus 34 and are completed. Communication with each other, the memory 32 is for storing computer execution instructions, the communication interface 33 is for communicating with other devices, and the processor 31 is configured to run the computer to execute instructions to cause the remote node 300 The various steps of the method applied to the remote node as above are performed.

FIG. 7 is a schematic structural diagram of Embodiment 2 of a control node according to the present invention. The control node node 400 provided by the present example includes a processor 41, a memory 42, a communication interface 43, and a system bus 44, and the memory 42 and the communication interface 43 are connected to the processor 41 through the system bus 44 and completed. Communication with each other, the memory 42 is for storing computer execution instructions, the communication interface 43 is for communicating with other devices, and the processor 41 is configured to run the computer to execute instructions to cause the control node 400 to execute The various steps of the method applied to control node 400 as above.

The system bus mentioned in FIG. 6 and FIG. 7 above may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The system bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in the figure, but it does not mean that there is only one bus or one type of bus. The communication interface is used to implement communication between the database access device and other devices such as clients, read-write libraries, and read-only libraries. The memory may include random access memory (RAM), and may also include non-volatile memory, such as at least one disk storage.

The above processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; or may be a digital signal processing (DSP), dedicated integration. Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A data transmission method, comprising:

The remote node performs physical layer processing on the first data to obtain a processing result.

Determining, by the remote node, whether physical layer processing of the first data is successfully completed according to the processing result;

And if the remote node determines to successfully complete physical layer processing on the first data, sending second data to the control node; if the remote node determines that the physical layer of the first data is not successfully completed Processing, sending third data to the control node;

The second data is obtained by the remote node successfully completing the physical layer processing on the first data, and the third data is that the remote node does not successfully complete the first data. The physical layer processing is obtained.
The method according to claim 1, wherein the remote node performs physical layer processing on the first data to obtain a processing result, including:

The remote node sequentially performs multiple input multiple output MIMO receiving processing on the first data, and channel decoding;

The remote node obtains the processing result according to the channel decoding.
The method of claim 2 wherein said second data comprises data decoded over said channel.
The method of claim 2 wherein said third data comprises:

Data that has undergone the MIMO reception process but has not been decoded by the channel;

or,

Data that has not been processed by the MIMO reception.
The method according to claim 4, wherein if the remote node determines that the physical layer processing of the first data is not successfully completed, before sending the third data to the control node, the method further includes :

Receiving, by the remote node, first indication information sent by the control node;

Transmitting, by the remote node, the third data according to the first indication information;

The first indication information indicates that the remote node sends the data that has undergone the MIMO receiving process but has not been decoded by the channel; or sends the data that has not undergone the MIMO receiving process.
The method according to any one of claims 1 to 5, wherein the remote node performs physical layer processing on the first data to obtain a processing result, and further includes:

The remote node receives the second indication information sent by the control node, where the second indication information indicates that the remote node performs physical layer processing on the first data.
A data transmission method, comprising:

The control node receives the data sent by the remote node according to the processing result, and the processing result is obtained by the remote node performing physical layer processing on the first data;

The control node processes the data;

If the processing result indicates that the remote node successfully completes physical layer processing on the first data, the data is second data; if the processing result indicates that the remote node does not successfully complete the pair The physical layer processing of the first data, then the data is third data.
The method of claim 7 wherein:

The processing result is obtained by the remote node sequentially performing multiple input multiple output MIMO receiving processing and channel decoding on the first data according to the channel decoding.
The method of claim 8 wherein said second data comprises data decoded over said channel.
The method of claim 8 wherein said third data comprises:

Data that has undergone the MIMO reception process but has not been decoded by the channel;

or,

Data that has not been processed by the MIMO reception.
The method according to claim 10, wherein before the control node receives the data sent by the remote node according to the processing result, the method further includes:

Transmitting, by the control node, first indication information to the remote node, where the first indication information indicates that the remote node sends the data that is processed by the MIMO receiving process but has not been decoded by the channel; or And transmitting the data that has not undergone the MIMO reception process.
The method according to any one of claims 7 to 11, wherein before the control node receives the data sent by the remote node according to the processing result, the method further includes:

The control node sends second indication information to the remote end, where the second indication information indicates that the remote node performs physical layer processing on the first data.
A remote node, comprising:

a processing module, configured to perform physical layer processing on the first data, obtain a processing result, and determine, according to the processing result, whether the physical layer processing of the first data is successfully completed;

The transceiver module is configured to: if the processing module determines that the physical layer processing of the first data is successfully completed, send the second data to the control node; if the processing module determines that the first data is not successfully completed Physical layer processing, sending third data to the control node;

The second data is obtained by the remote node successfully completing the physical layer processing on the first data, and the third data is that the remote node does not successfully complete the first data. The physical layer processing is obtained.
The remote node of claim 13 wherein:

The processing module is specifically configured to sequentially perform multiple input multiple output MIMO receiving processing on the first data, and channel decoding; and obtain the processing result according to the channel decoding.
The remote node of claim 14 wherein said second data comprises data decoded over said channel.
The remote node according to claim 14, wherein the third data comprises:

Data that has undergone the MIMO reception process but has not been decoded by the channel;

or,

Data that has not been processed by the MIMO reception.
The remote node of claim 16 wherein:

The transceiver module determines, before the processing module, that the physical layer processing of the first data is not successfully completed, and before sending the third data to the control node, receiving the first indication information sent by the control node; Sending the third data by an indication information;

The first indication information indicates that the remote node sends the data that has undergone the MIMO receiving process but has not been decoded by the channel; or sends the data that has not undergone the MIMO receiving process.
A remote node according to any one of claims 13 to 17, wherein

The transceiver module is further configured to: before the processing module performs physical layer processing on the first data, before receiving the processing result, receiving the second indication information sent by the control node, where the second indication information indicates the remote end The node performs physical layer processing on the first data.
A control node, comprising:

a transceiver module, configured to receive data sent by the remote node according to the processing result, where the processing result is Obtaining, by the remote node, physical layer processing on the first data;

a processing module, configured to process the data;

If the processing result indicates that the remote node successfully completes physical layer processing on the first data, the data is second data; if the processing result indicates that the remote node does not successfully complete the pair The physical layer processing of the first data, then the data is third data.
The control node according to claim 19, characterized in that

The processing result is obtained by the remote node sequentially performing multiple input multiple output MIMO receiving processing and channel decoding on the first data according to the channel decoding.
The control node of claim 20 wherein said second data comprises data decoded over said channel.
The control node according to claim 20, wherein the third data comprises:

Data that has undergone the MIMO reception process but has not been decoded by the channel;

or,

Data that has not been processed by the MIMO reception.
A control node according to claim 22, wherein

The transceiver module is further configured to send first indication information to the remote node before receiving the data sent by the remote node according to the processing result, where the first indication information indicates that the remote node sends the Data that is MIMO received but not decoded by the channel; or, the data that has not undergone the MIMO reception process.
A control node according to any one of claims 19 to 23, characterized in that

The transceiver module is further configured to send second indication information to the remote end before receiving the data sent by the remote node according to the processing result, where the second indication information indicates that the remote node is to the first data Perform physical layer processing.
A remote node, comprising: a processor, a memory, a communication interface, and a system bus, wherein the memory and the communication interface are connected to the processor through the system bus and complete communication with each other, The memory is for storing computer execution instructions, the communication interface is for communicating with other devices, and the processor is configured to execute the computer to execute instructions to cause the remote node to perform any of claims 1-6 The method described.
A control node, characterized by a processor, a memory, a communication interface, and a system bus, wherein the memory and the communication interface are connected to the processor through the system bus and Completing communication with each other, the memory for storing computer execution instructions, the communication interface for communicating with other devices, the processor for running the computer to execute instructions, causing the control node to perform as claimed in claim 7 The method of any of -12.