CN113039827B

CN113039827B - Data transmission method, device and computer storage medium

Info

Publication number: CN113039827B
Application number: CN201880099588.7A
Authority: CN
Inventors: 宋照红; 张大刚; 张鹏程
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2022-10-11
Anticipated expiration: 2038-11-26
Also published as: CN113039827A; WO2020107154A1

Abstract

The embodiment of the application provides a data transmission method, a data transmission device and a computer storage medium, wherein the method comprises the following steps: the split beam data is combined in the downlink transmission process, then compression processing is carried out, a high compression algorithm of CPRI can be supported, and more split cells can be effectively supported under the conditions that the software and hardware specification, the exchange processing, the middle radio frequency and other processing specification limits in a baseband chip contained in the baseband processing and the CPRI transmission bandwidth limit between a baseband board and the middle radio frequency are limited.

Description

Data transmission method, device and computer storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data transmission method and apparatus, and a computer storage medium.

Background

Splitting is a cell radio beam signal coverage changing technology, in which a coverage beam is changed from an original radio beam signal coverage direction and shape to another radio beam signal coverage direction and shape. The cleaving technique may include a hard cleaving technique and a soft cleaving technique. The soft splitting technology is a technology for realizing beam coverage direction change and shape change in a software mode. The cells corresponding to different beams after the beam splitting in the software mode are called soft split beam cells, and each cell specifically corresponds to a certain beam shape. The different beam cells of the soft splitting relate to beam data combining in downlink transmission and beam data splitting in uplink reception. In the data transmission process, downlink data sequentially passes through key processes such as baseband processing, exchange processing, intermediate frequency processing, radio frequency processing and the like, uplink data sequentially passes through key processes such as radio frequency processing, intermediate frequency processing, exchange processing, baseband processing and the like, and beam data combining or beam data shunting can be performed on the key processes.

Due to limitations of software and hardware specifications, switching processing, medium-frequency and other processing specifications in a baseband chip included in baseband processing, and limitations of a Common Public Radio Interface (CPRI) transmission bandwidth between a baseband board and the medium-frequency and medium-frequency, a baseband single board cannot support more combining cells. For example, the internal key processing specification of the baseband chip supports M antenna processing, that is, the baseband chip supports at most N cells, and the chip constraint causes that the chip cannot support more than N split cells. And if the specification of the routing switching module between the baseband processing and the intermediate radio frequency processing limits to support X cell combining and splitting, the switching module cannot support more than X splitting cells. And for example, the CPRI transmission bandwidth limitation can only support uplink and downlink data transmission in Y cells, and cannot support establishment of more than Y split cells. Therefore, how to effectively support more split cells is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

The embodiment of the application provides a data transmission method, a data transmission device and a computer storage medium, which can effectively support more split cells.

In a first aspect, an embodiment of the present application provides a data transmission method, where a network device performs splitting on first data by using a soft splitting technology to obtain at least one first unit of data, determines a location of a downlink combining path, performs downlink combining on the determined location of the at least one first unit of data to obtain second data, compresses the second data, and transmits the compressed second data.

In the technical scheme, the network device combines the split beam data in the downlink transmission process, and then compresses the data, so that the problem that the baseband cannot decompress due to the fact that the baseband combines the compressed data to destroy the Frame header and the check factor of a CPRI high compression ratio Algorithm (such as a Frame Compression Algorithm (FCA)) can be avoided, and more split cells can be effectively supported under the conditions that the baseband processing contains other processing specification limits of software and hardware specifications, switching processing, medium radio frequency and the like in a baseband chip and the CPRI transmission bandwidth limit between a baseband board and the medium radio frequency.

In an implementation manner, the manner in which the network device determines the location of the downlink combining may be: and determining the position of the downlink combination according to the configuration information, wherein the configuration information is used for indicating the position of the downlink combination.

In an implementation manner, the position determined by the network device is before Inverse Fourier transform (IFFT) processing included in baseband processing, or after IFFT processing and before switching module processing, or after switching module processing, or intermediate frequency module processing, or radio frequency module processing.

In an implementation manner, the manner in which the network device determines the location of the downlink combining may be: and acquiring state information, and determining the position of the downlink combiner according to the state information. The state information includes the remaining resource amount of the baseband resource or the supportable number of the split cells, and/or the remaining resource amount of the radio frequency resource or the supportable number of the split cells, which are processed by the baseband, and the baseband resource includes a baseband frequency domain resource, a baseband time domain resource and a beam domain resource.

In the technical scheme, the network device can flexibly select the downlink combining point according to the use condition or the specification limit of the baseband resource or the radio frequency resource. When a certain resource is insufficient, different combining points can be selected to avoid the resource under the condition of insufficient resource.

In an implementation manner, the manner in which the network device determines the position of the downlink combining according to the state information may be: and when the residual resource amount of the baseband frequency domain resources processed by the baseband is greater than a first resource threshold value, determining that the position of the downlink combiner is before the IFFT processing. And when the residual resource amount of the baseband frequency domain resources processed by the baseband is less than or equal to the first resource threshold value and the residual resource amount of the baseband time domain resources processed by the baseband is greater than the second resource threshold value, determining that the position of the downlink combiner is after the IFFT processing and before the switching module processing. And when the residual resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold and the residual resource amount of the switching module is greater than the fourth resource threshold, determining that the downlink combiner is processed at the switching module. And when the residual resource amount of the baseband resources processed by the baseband is less than or equal to a third resource threshold, the residual resource amount of the exchange module is less than or equal to a fourth resource threshold, and the residual resource amount of the intermediate frequency module is greater than a fifth resource threshold, determining that the downlink combiner is processed in the intermediate frequency module. And when the residual resource amount of the baseband resources processed by the baseband is less than or equal to a third resource threshold, the residual resource amount of the exchange module is less than or equal to a fourth resource threshold, the residual resource amount of the intermediate frequency module is less than or equal to a fifth resource threshold, and the residual resource amount of the radio frequency module is greater than a sixth resource threshold, determining that the downlink combiner is processed at the radio frequency module. The first resource threshold, the second resource threshold, the third resource threshold, the fourth resource threshold, the fifth resource threshold and the sixth resource threshold are positive numbers.

In the technical scheme, the network equipment can flexibly select the downlink combining point according to the use condition of the baseband resource or the radio frequency resource. When a certain resource is insufficient, different combining points can be selected to avoid the resource under the condition of insufficient resource.

In an implementation manner, the manner in which the network device determines the location of the downlink combining path according to the state information may be: when the number of split cells supportable by the baseband frequency domain resources processed by the baseband is greater than a first number threshold, determining that the position of the downlink combining path is before the IFFT processing. And when the number of the split cells supportable by the baseband frequency domain resources processed by the baseband is less than or equal to a first number threshold and the number of the split cells supportable by the baseband time domain resources processed by the baseband is greater than a second number threshold, determining that the position of the downlink combiner is after the IFFT processing and before the switching module processing. And when the number of the split cells supportable by the baseband resources processed by the baseband is less than or equal to a third number threshold and the number of the split cells supportable by the switching module is greater than a fourth number threshold, determining that the downlink combiner is processed at the switching module. And when the number of the split cells supportable by the baseband resources processed by the baseband is less than or equal to a third number threshold, the number of the split cells supportable by the switching module is less than or equal to a fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than a fifth number threshold, determining that the downlink combiner is processed at the intermediate frequency module. When the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, the number of the split cells supportable by the intermediate frequency module is less than or equal to the fifth number threshold, and the number of the split cells supportable by the radio frequency module is greater than the sixth number threshold, it is determined that the downlink combiner is processed at the radio frequency module. The first quantity threshold, the second quantity threshold, the third quantity threshold, the fourth quantity threshold, the fifth quantity threshold and the sixth quantity threshold are positive numbers.

In the technical scheme, the network device can flexibly select the downlink combining point according to the specification limit of the baseband resource or the radio frequency resource. When a certain resource is insufficient, different combining points can be selected to avoid the resource under the condition of insufficient resource.

In an implementation manner, the manner in which the network device determines the location of the downlink combining path according to the state information may be: and when the residual resource amount of the baseband frequency domain resources processed by the baseband is greater than a first resource threshold value and the supportable number of the split cells of the baseband frequency domain resources processed by the baseband is greater than a first number threshold value, determining that the position of the downlink combiner is before the IFFT processing. When the residual resource amount of the baseband frequency domain resources processed by the baseband is less than or equal to a first resource threshold value, the residual resource amount of the baseband time domain resources processed by the baseband is greater than a second resource threshold value, the number of the split cells supportable by the baseband frequency domain resources processed by the baseband is less than or equal to a first number threshold value, and the number of the split cells supportable by the baseband time domain resources processed by the baseband is greater than a second number threshold value, determining that the position of the downlink combining path is after the IFFT processing and before the switching module processing. And when the residual resource amount of the baseband resource processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is greater than the fourth resource threshold, the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, and the number of the split cells supportable by the switching module is greater than the fourth number threshold, determining that the downlink combiner is processed by the switching module. When the remaining resource amount of the baseband resource processed by the baseband is less than or equal to the third resource threshold, the remaining resource amount of the switching module is less than or equal to the fourth resource threshold, the remaining resource amount of the intermediate frequency module is greater than the fifth resource threshold, the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than the fifth number threshold, it is determined that the downlink combiner is processed by the intermediate frequency module. When the remaining resource amount of the baseband resource processed by the baseband is less than or equal to the third resource threshold, the remaining resource amount of the switching module is less than or equal to the fourth resource threshold, the remaining resource amount of the intermediate frequency module is less than or equal to the fifth resource threshold, the remaining resource amount of the radio frequency module is greater than the sixth resource threshold, the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, the number of the split cells supportable by the intermediate frequency module is less than or equal to the fifth number threshold, and the number of the split cells supportable by the radio frequency module is greater than the sixth number threshold, determining that the downlink combiner is processed by the radio frequency module.

The network device may comprehensively select an optimal downlink combining point according to specifications (e.g., conditions such as the number of paths, time delay, and complexity) of each node having combining processing capability, and may implement multi-stage combining on multiple combining nodes.

In a second aspect, an embodiment of the present application provides a data transmission method, where a network device may perform decompression processing on third data, and transmit the decompressed third data. And the network equipment determines the position of the uplink shunt circuit, and performs the uplink shunt circuit on the decompressed third data at the determined position to obtain at least one third unit data.

In the technical scheme, the network equipment decompresses and then shunts the split beam data in the uplink transmission process, so that the situation that the split branches damage FCA heads and check factors after the baseband is decompressed can be avoided, a high compression algorithm of the CPRI can be supported, and more split cells can be effectively supported under the conditions that the software and hardware specification, the switching processing, the middle radio frequency and other processing specification limits in a baseband chip contained in the baseband processing, and the CPRI transmission bandwidth limit between a baseband board and the middle radio frequency.

In one implementation, the network device may determine the location of the upstream branch by: and determining the position of the uplink shunt circuit according to configuration information, wherein the configuration information is used for indicating the position of the uplink shunt circuit.

In an implementation manner, the position determined by the network device is after a Fast Fourier Transform (FFT) module included in the baseband processing, or before the FFT processing and after the switching module processing, or processed by the switching module, or processed by the intermediate frequency module, or processed by the radio frequency module.

In one implementation, the network device may determine the location of the upstream branch by: and acquiring state information, and determining the position of the uplink shunt according to the state information. The state information includes the remaining resource amount of the baseband resource or the supportable number of the split cells, and/or the remaining resource amount of the radio frequency resource or the supportable number of the split cells, which are processed by the baseband, and the baseband resource includes a baseband frequency domain resource, a baseband time domain resource and a beam domain resource.

In the technical scheme, the network equipment can flexibly select the uplink shunt point according to the use condition or specification limit of the baseband resource or the radio frequency resource. When a certain resource is insufficient, different shunting points can be selected to avoid the resource under the condition of insufficient resource.

In one implementation manner, the manner in which the network device determines the location of the upstream branch according to the state information may be: and when the residual resource amount of the baseband frequency domain resources processed by the baseband is larger than the first resource threshold, determining that the position of the uplink shunt is after the FFT processing. And when the residual resource amount of the baseband frequency domain resources processed by the baseband is less than or equal to the first resource threshold and the residual resource amount of the baseband time domain resources processed by the baseband is greater than the second resource threshold, determining that the position of the uplink shunt is after the processing of the switching module and before the FFT processing. And when the residual resource amount of the baseband resources processed by the baseband is less than or equal to a third resource threshold and the residual resource amount of the switching module is greater than a fourth resource threshold, determining that the uplink shunt is processed at the switching module. And when the residual resource amount of the baseband resources processed by the baseband is less than or equal to a third resource threshold, the residual resource amount of the exchange module is less than or equal to a fourth resource threshold, and the residual resource amount of the intermediate frequency module is greater than a fifth resource threshold, determining that the uplink shunt is processed in the intermediate frequency module. And when the residual resource amount of the baseband resource processed by the baseband is less than or equal to a third resource threshold, the residual resource amount of the exchange module is less than or equal to a fourth resource threshold, the residual resource amount of the intermediate frequency module is less than or equal to a fifth resource threshold, and the residual resource amount of the radio frequency module is greater than a sixth resource threshold, determining that the uplink shunt is processed in the radio frequency module. The first resource threshold, the second resource threshold, the third resource threshold, the fourth resource threshold, the fifth resource threshold and the sixth resource threshold are positive numbers.

In the technical scheme, the network equipment can flexibly select the uplink branch point according to the use condition of the baseband resource or the radio frequency resource. When a certain resource is insufficient, different shunting points can be selected to avoid the resource under the condition of insufficient resource.

In an implementation manner, the manner in which the network device determines the location of the uplink branch according to the state information may be: and when the number of the split cells which can be supported by the baseband frequency domain resources processed by the baseband is greater than a first number threshold, determining that the position of the uplink branch is after the FFT processing. And when the number of the split cells supportable by the baseband frequency domain resources processed by the baseband is less than or equal to a first number threshold and the number of the split cells supportable by the baseband time domain resources processed by the baseband is greater than a second number threshold, determining that the position of the uplink shunt is after the processing of the switching module and before the FFT processing. And when the number of the split cells supportable by the baseband resources processed by the baseband is less than or equal to a third number threshold and the number of the split cells supportable by the switching module is greater than a fourth number threshold, determining that the uplink branch is processed at the switching module. When the number of the split cells supportable by the resource processed by the baseband is less than or equal to a third number threshold, the number of the split cells supportable by the switching module is less than or equal to a fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than a fifth number threshold, it is determined that the uplink branch is processed at the intermediate frequency module. When the number of the split cells supportable by the resource processed by the baseband is less than or equal to a third number threshold, the number of the split cells supportable by the switching module is less than or equal to a fourth number threshold, the number of the split cells supportable by the intermediate frequency module is less than or equal to a fifth number threshold, and the number of the split cells supportable by the radio frequency module is greater than a sixth number threshold, it is determined that the uplink split is processed at the radio frequency module. The first quantity threshold, the second quantity threshold, the third quantity threshold, the fourth quantity threshold, the fifth quantity threshold and the sixth quantity threshold are positive numbers.

In the technical scheme, the network equipment can flexibly select the uplink shunt point according to the specification limit of the baseband resource or the radio frequency resource. When a certain resource is insufficient, different shunting points can be selected to avoid the resource under the condition of insufficient resource.

In an implementation manner, the manner in which the network device determines the location of the uplink branch according to the state information may be: and when the residual resource amount of the baseband frequency domain resources processed by the baseband is greater than a first resource threshold value and the number of the split cells supportable by the baseband frequency domain resources processed by the baseband is greater than a first number threshold value, determining that the position of the uplink shunt is after the FFT processing. When the residual resource amount of the baseband frequency domain resources processed by the baseband is less than or equal to the first resource threshold, the residual resource amount of the baseband time domain resources processed by the baseband is greater than the second resource threshold, the number of the split cells supportable by the baseband frequency domain resources processed by the baseband is less than or equal to the first number threshold, and the number of the split cells supportable by the baseband time domain resources processed by the baseband is greater than the second number threshold, determining that the position of the uplink shunt is after the processing of the switching module and before the FFT processing. When the residual resource amount of the baseband resource processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is greater than the fourth resource threshold, the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, and the number of the split cells supportable by the switching module is greater than the fourth number threshold, it is determined that the uplink branch is processed at the switching module. When the remaining resource amount of the baseband resource processed by the baseband module is less than or equal to a third resource threshold, the remaining resource amount of the switching module is less than or equal to a fourth resource threshold, the remaining resource amount of the intermediate frequency module is greater than a fifth resource threshold, the number of the split cells supportable by the resource processed by the baseband module is less than or equal to a third number threshold, the number of the split cells supportable by the switching module is less than or equal to a fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than a fifth number threshold, it is determined that the uplink split is processed by the intermediate frequency module. When the remaining resource amount of the baseband resource processed by the baseband module is less than or equal to a third resource threshold, the remaining resource amount of the switching module is less than or equal to a fourth resource threshold, the remaining resource amount of the intermediate frequency module is less than or equal to a fifth resource threshold, the remaining resource amount of the radio frequency module is greater than a sixth resource threshold, the supportable number of the split cells of the baseband resource processed by the switching module is less than or equal to a third number threshold, the supportable number of the split cells of the switching module is less than or equal to a fourth number threshold, the supportable number of the split cells of the intermediate frequency module is less than or equal to a fifth number threshold, and the supportable number of the split cells of the radio frequency module is greater than a sixth number threshold, determining that the uplink branch is processed by the radio frequency module.

The network device can comprehensively select the optimal uplink branch point according to the specification (such as the conditions of the number of paths, time delay, complexity and the like) of each node with the branch processing capability, and can realize multi-stage branch on a plurality of branch nodes.

In a third aspect, an embodiment of the present application provides a communication apparatus, where the apparatus includes a unit configured to implement the data transmission method in the first aspect or the second aspect.

In a fourth aspect, the present application provides a computer storage medium, wherein the computer storage medium stores a computer program or instructions, and when the program or instructions are executed by a processor, the processor is caused to execute the method according to the first aspect or the second aspect.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, including a processor, coupled with a memory,

the memory to store instructions;

the processor is configured to execute the instructions in the memory to cause the communication device to perform the method according to the first aspect or the second aspect.

In a sixth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor and an interface circuit, where the interface circuit is coupled to the processor,

the processor is configured to execute a computer program or instructions to implement the method according to the first aspect or the second aspect;

the interface circuit is used for communicating with other modules outside the chip system.

Drawings

Fig. 1 is a schematic diagram of a split beam according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a downlink combining and uplink splitting provided in an embodiment of the present application;

fig. 3 is a schematic diagram illustrating another implementation of a downlink combining path and an uplink splitting path according to an embodiment of the present application;

fig. 4 is a schematic diagram of a data transmission method provided in an embodiment of the present application;

fig. 5 is a schematic diagram of another data transmission method provided in an embodiment of the present application;

fig. 6 is a schematic diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic diagram of another communication device provided in the embodiments of the present application.

Detailed Description

The embodiment of the application can be applied to a wireless communication system which can be a fifth generation (5) ^th generation, 5G) New Radio (NR) system in a mobile communication system, and may be a future oneThe present application is not limited to new wireless communication systems. The embodiment of the application can support a common cell or a Massive Multiple-Input Multiple-Output (MIMO) cell, and the Massive MIMO cell may be, for example, a Time Division Duplex (TDD) Massive MIMO cell or a Frequency Division Duplex (FDD) Massive MIMO cell.

In embodiments of the present application, reference is made in particular to network devices. The network device is an access device that the terminal device accesses to the mobile communication system in a wireless manner, and may be a base station NodeB, an evolved NodeB (eNodeB), a Transmission Reception Point (TRP), a next generation base station (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, and the like. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices.

The soft splitting technology is a technology for realizing beam coverage direction change and shape change in a software mode. Taking the schematic diagram of splitting beams shown in fig. 1 as an example, a wireless communication system has three cells, which are a cell 0, a cell 1, and a cell 2, respectively, and shapes of beams and coverage directions of different cells may be shown on the left side. Compared with the wave beam before splitting, the wave beam after splitting can cover more cells, resource allocation can be effectively shared among the cells, and the resource utilization rate is improved.

The downlink transmission refers to a process of transmitting data to the terminal device by the network device, and the downlink data refers to data transmitted to the terminal device by the network device. The uplink transmission refers to a process of transmitting data to the network device by the terminal device, and the uplink data refers to data transmitted to the network device by the terminal device. The split different beams relate to beam data combining in downlink transmission and beam data splitting in uplink reception.

Taking the schematic flow diagram of the downlink combining path and the uplink splitting path in the downlink and uplink processing flow shown in fig. 2 as an example, in the processing process of the downlink data, the downlink data sequentially passes through the key flows of baseband processing, exchange processing, intermediate frequency processing, radio frequency processing, and the like. In the process of processing the uplink data, the uplink data sequentially passes through key processes such as radio frequency processing, intermediate frequency processing, exchange processing, baseband processing and the like. The whole downlink and uplink processing flows support CPRI and eCPRI (extended CPRI) interfaces, point interfaces or adjacent upstream and downstream functional points in the diagram can be used as combining and/or splitting nodes, and the combining and splitting alternative nodes described in the flow diagram in a principle manner can be used as specific implementation references.

Specifically, taking the schematic diagram of the downlink combining path and the uplink splitting path shown in fig. 3 as an example, in the processing of the downlink data, the baseband processing may specifically be: the downlink data is sequentially subjected to downlink symbol processing, inverse Fourier transform (IFFT)/FFT processing, CPRI framing and unframing Interface (Interface, INTF for short) processing and CPRI data routing forwarding processing. In the uplink data processing process, the baseband processing may specifically be: the uplink CPRI data is sequentially subjected to forwarding processing, CPRI frame decoding processing of an INTF interface, FFT processing and uplink symbol processing. In addition, the cell combining and splitting control module may respectively select the downlink combining point and the uplink splitting point through adaptation or configuration, for example, the downlink combining is performed before IFFT processing, after IFFT processing and before switching module processing, CPRI framing processing of an INTF interface, CPRI data routing forwarding processing of a switching module, intermediate frequency module processing, or radio frequency module processing, and the uplink splitting is performed after IFFT processing, after switching module processing and before FFT module processing, after switching module processing, intermediate frequency module processing, or radio frequency module processing. The FFT module process may implement Fourier Transform FFT/Inverse Fourier Transform (IFFT) and other functional processes, such as Cyclic Prefix (CP), CP removal, or dc suppression. The INTF module can implement negotiation and group unframing functions of the CPRI protocol. The forwarding module can implement forwarding of the CPRI protocol. The intermediate frequency module can realize intermediate frequency processing. The radio frequency module may implement radio frequency processing.

The baseband processing and the switching module processing, the intermediate frequency module processing, and the radio frequency module processing may be implemented in the same chip, the same board, or in different chips, different boards, or even different board frames, and no special restriction is made here.

The positions of the downlink combining path and the uplink splitting path are allowed to be asymmetric, and the processing can be performed at different node positions in the processing flow, or at the same node position in the processing flow, which is not specifically limited by the embodiment of the present application. The number of combining cells and the number of splitting cells are not limited in the embodiments of the present application. Since the hardware implementation is different, the downlink combining point or the uplink splitting point includes but is not limited to the above location, and other downlink combining points or uplink splitting points may be selected according to a specific hardware implementation, which is not specifically limited by the embodiment of the present application.

In order to better understand the data transmission method, apparatus, and computer storage medium disclosed in the embodiments of the present application, first, the data transmission method implemented in the present application is described below. Fig. 4 is a schematic flowchart of a data transmission method disclosed in an embodiment of the present application, where an execution subject of the method may be a network device or a chip applied to the network device. The following description will be made taking an example in which the execution subject is a network device. The method includes, but is not limited to, the steps of:

step S401: the network device uses soft splitting technology to split the first data to obtain at least one first unit data.

The network device may split the first data using a soft splitting technique to obtain at least one first unit of data. Wherein the first data may be downlink data.

Step S402: and the network equipment determines the position of the downlink combining path.

In one implementation, the network device may determine the location of the downlink combining path through configuration. In specific implementation, the network device may determine the position of the downlink combining path according to the configuration information, where the configuration information is used to indicate the position of the downlink combining path. The determined position is processed by an exchange module, an intermediate frequency module or a radio frequency module before the IFFT process included in the baseband process, or after the IFFT process and before the exchange module. For example, if the determined position is before IFFT processing, downlink combining is performed on cell data (e.g., at least one first unit data) corresponding to each downlink beam in the frequency domain, and then IFFT processing is performed on the cell data to the time domain. If the determined position is after the IFFT processing and before the switching module processing, the cell data corresponding to each downlink beam is combined in the time domain, and then processed and sent to the middle radio frequency module through the switching module, where the middle radio frequency module may include a middle frequency module and a radio frequency module. And if the obtained position is determined to be processed in the switching module, finishing downlink combining by the switching module through cell data corresponding to each downlink wave beam. And if the obtained position is determined to be processed in the intermediate frequency module, finishing downlink combining by the cell data corresponding to each downlink wave beam in the intermediate frequency module. And if the obtained position is processed in the radio frequency module, finishing downlink combining by the radio frequency module according to the cell data corresponding to each downlink wave beam.

For example, if the configuration information is used to indicate that the position of the downlink combined channel is before the IFFT processing, the network device may determine that the position of the downlink combined channel is before the IFFT processing. For another example, if the configuration information is used to indicate that the location of the downlink combination is processed at the radio frequency module, the network device may determine that the location of the downlink combination is processed at the radio frequency module.

In one implementation, the network device may determine the location of the downlink combining adaptively. In specific implementation, the network device may obtain the state information, and determine the position of the downlink combining path according to the state information. The state information may include a remaining resource amount of a baseband resource or a supportable number of split cells, and/or a remaining resource amount of a radio frequency resource or a supportable number of split cells, where the baseband resource includes a baseband frequency domain resource, a baseband time domain resource, and a beam domain resource.

For example, the network device may flexibly select the downlink combining point according to the use condition of the baseband resource or the radio frequency resource. When a certain resource is insufficient, different combining points can be selected to avoid the condition of insufficient resources. For example, when one baseband chip needs to be matched with another baseband chip for processing, and when one chip itself is not enough to perform downlink combining resources, a forwarding module and a middle radio frequency point may be selected outside the baseband chip to perform downlink combining. The other modules selected to be matched can be on the same single board, and can also span other single boards or span other modules on a single board frame.

For another example, the network device may flexibly select the downlink combining point according to the specification limit of the baseband resource or the radio frequency resource. Under the condition of certain resource limitation, different combining points can be selected to avoid the condition of resource limitation. For example, when the specification of the number of split cells supported by the resource of the frequency domain or time domain processing of one baseband chip is not sufficient, and the split cells need to be matched with another baseband chip for processing, and when the downlink combining resource of a certain chip is not sufficient, the downlink combining can be performed at the forwarding module and the middle radio frequency point outside the baseband chip. The other modules selected to be matched can be on the same single board, or can cross the single board or cross other modules on the single board frame. For another example, the network device may comprehensively select an optimal downlink combining point according to specifications (e.g., conditions such as the number of paths, delay, complexity, and the like) of each node having combining processing capability, and may implement multi-stage combining on multiple combining nodes.

In one implementation, when the remaining resource amount of the baseband frequency domain resource of the baseband processing is greater than the first resource threshold, the network device may determine that the position of the downlink combining is before the IFFT processing. When the remaining resource amount of the baseband frequency domain resource processed by the baseband is less than or equal to the first resource threshold and the remaining resource amount of the baseband time domain resource processed by the baseband is greater than the second resource threshold, the network device may determine that the position of the downlink combining is after the IFFT processing and before the processing by the switching module. When the remaining resource amount of the baseband resource processed by the baseband is less than or equal to the third resource threshold and the remaining resource amount of the switching module is greater than the fourth resource threshold, the network device may determine that the downlink combiner is processed at the switching module. When the remaining resource amount of the baseband resource processed by the baseband is less than or equal to the third resource threshold, the remaining resource amount of the switching module is less than or equal to the fourth resource threshold, and the remaining resource amount of the intermediate frequency module is greater than the fifth resource threshold, the network device may determine that the downlink combiner is processed in the intermediate frequency module. When the remaining resource amount of the baseband resource processed by the baseband module is less than or equal to the third resource threshold, the remaining resource amount of the switching module is less than or equal to the fourth resource threshold, the remaining resource amount of the intermediate frequency module is less than or equal to the fifth resource threshold, and the remaining resource amount of the radio frequency module is greater than the sixth resource threshold, the network device may determine that the downlink combiner is processed at the radio frequency module.

In an implementation manner, when the number of split cells supportable by the baseband frequency domain resource of the baseband processing is greater than a first number threshold, the network device may determine that the position of the downlink combining is before the IFFT processing. When the number of the split cells supportable by the baseband frequency domain resource for baseband processing is less than or equal to the first number threshold and the number of the split cells supportable by the baseband time domain resource for baseband processing is greater than the second number threshold, the network device may determine that the position of the downlink combining is after IFFT processing and before switching module processing. When the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold and the number of the split cells supportable by the switching module is greater than the fourth number threshold, the network device may determine that the downlink combiner is processed at the switching module. When the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than the fifth number threshold, the network device may determine that the downlink combiner is processed at the intermediate frequency module. When the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, the number of the split cells supportable by the intermediate frequency module is less than or equal to the fifth number threshold, and the number of the split cells supportable by the radio frequency module is greater than the sixth number threshold, the network device may determine that the downlink combining is processed at the radio frequency module.

In the embodiment of the application, the complexity is reduced through domain conversion, the downlink combining path allows the frequency domain, the time domain, the antenna domain, the beam domain and the like to be transformed, and a reasonable processing method is selected to reduce the complexity. For example, the downstream processing is converted from the frequency domain to the time domain to reduce complexity.

Step S403: and the network equipment performs downlink combination on the at least one first unit data at the determined position to obtain second data.

Step S404: and the network equipment compresses the second data and transmits the compressed second data.

The network device may perform CPRI transmission, compression, and other processing after the downlink combining.

In the method described in fig. 4, the network device combines the split beam data in the downlink transmission process, and then compresses the data, so as to avoid the situation that the baseband after compression combines to destroy the CPRI high compression ratio frame header and the check factor, which causes the situation that decompression cannot be performed, so that more split cells can be effectively supported under the conditions of the limitations of software and hardware specifications, switching processing, medium radio frequency and other processing specifications in the baseband chip included in the baseband processing, and the limitation of the CPRI transmission bandwidth between the baseband board and the medium radio frequency.

Fig. 5 is a schematic flowchart of another data transmission method disclosed in an embodiment of the present application, where an execution main body of the method may be a network device, or may be a chip applied to the network device. The following description will be given taking as an example that the execution subject is a network device. The method includes, but is not limited to, the steps of:

step S501: and the network equipment decompresses the third data and transmits the decompressed third data.

The network device may perform CPRI decompression, transmission, and other processing on the third data.

Step S502: the network device determines the location of the upstream tap.

In one implementation, the network device may determine the location of the upstream tap by configuration. In a specific implementation, the network device may receive configuration information from the network device, where the configuration information is used to indicate a location of the upstream branch, and determine the location of the upstream branch according to the configuration information. The determined position is processed by an exchange module, an intermediate frequency module or a radio frequency module after the FFT processing included in the baseband processing, or after the processing of the exchange module and before the FFT processing. For example, if the determined position is after FFT processing, after the uplink completes time domain to frequency domain conversion (usually through FFT processing), antenna frequency domain data may be directly shunted, the antenna frequency domain data may be shunted to cells (beam cells) corresponding to each beam, and each beam cell completes processing such as uplink demodulation decoding, channel estimation, and the like; or after the time domain to frequency domain conversion is completed, the uplink is converted from the antenna domain to the beam domain, then different beams are branched from the beam domain, the data in the beam domain is distributed to each beam cell, and the processing such as uplink demodulation decoding, channel estimation and the like is completed by each beam cell. If the obtained position is determined to be after the processing of the exchange module and before the FFT processing, the time domain corresponding processing data of the cells corresponding to different wave beams are separated from the received data from the exchange module, and each wave beam cell carries out the subsequent processing according to the time domain. If the obtained position is processed in the switching module and the switching module supports branching, the switching module completes corresponding processing data of different splitting beams branched from the received data (such as CPRI data output by the intermediate frequency module) from the previous module, and each beam cell performs subsequent processing according to the time domain. If the obtained position is determined to be processed in the intermediate frequency module, the intermediate frequency module completes corresponding processing data of different split beams which are branched from the received data (such as data output by the radio frequency module) from the previous module, and each beam cell performs subsequent processing according to an intermediate frequency domain. If the obtained position is determined to be processed in the radio frequency module, the radio frequency module completes corresponding processing data of different split beams branched from the received data (such as data output by the antenna module) from the front module, and each beam cell performs subsequent processing according to a radio frequency domain.

For example, if the configuration information sent by the branch control module is used to indicate that the location of the uplink branch is after the FFT processing, the network device may determine that the location of the uplink branch is after the FFT processing. For another example, if the configuration information is used to indicate that the location of the uplink shunt is processed at the radio frequency module, the network device may determine that the location of the uplink shunt is processed at the radio frequency module.

In one implementation, the network device may adaptively determine the location of the upstream tap. In a specific implementation, the network device may obtain the state information, and determine the position of the uplink branch according to the state information. The state information includes a remaining resource amount or a supportable number of split cells of a baseband resource processed by a baseband, and/or a remaining resource amount or a supportable number of split cells of a radio frequency resource, where the baseband resource includes the baseband frequency domain resource, the baseband time domain resource, and a beam domain resource.

For example, the network device may flexibly select the uplink splitting point according to the use condition of the baseband resource or the radio frequency resource. When a certain resource is insufficient, different shunting points can be selected to avoid the condition of insufficient resource. For example, when one baseband chip needs to be matched with another baseband chip for processing, and when none of the resources for uplink splitting is enough for selecting one chip, uplink splitting can be performed at a forwarding module and a middle radio frequency point outside the baseband chip. The other modules selected to be matched can be on the same single board, or can cross the single board or cross other modules on the single board frame.

For another example, the network device may flexibly select the uplink splitting point according to the specification limit of the baseband resource or the radio frequency resource. Under the condition of certain resource limitation, different shunting points can be selected to avoid the condition of resource limitation. For example, when the specification of the number of split cells supported by the resource of the frequency domain or time domain processing of one baseband chip is not sufficient, and the split cells need to be matched with another baseband chip for processing, and when the resource of selecting one chip to perform uplink branching is not sufficient, the uplink branching can be performed at a forwarding module and a middle radio frequency point outside the baseband chip. The other modules selected to be matched can be on the same single board, or can cross the single board or cross other modules on the single board frame.

In one implementation, when the remaining resource amount of the baseband frequency domain resource of the baseband processing is greater than a first resource threshold, it is determined that the position of the uplink branch is after FFT processing. And when the residual resource amount of the baseband frequency domain resource processed by the baseband is less than or equal to the first resource threshold value and the residual resource amount of the baseband time domain resource processed by the baseband is greater than a second resource threshold value, determining that the position of the uplink shunt is after the processing of the switching module and before the FFT processing. And when the residual resource amount of the baseband resources processed by the baseband is less than or equal to a third resource threshold and the residual resource amount of the switching module is greater than a fourth resource threshold, determining that the uplink shunt is processed at the switching module. And when the residual resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is less than or equal to the fourth resource threshold, and the residual resource amount of the intermediate frequency module is greater than a fifth resource threshold, determining that the uplink shunt is processed at the intermediate frequency module. And when the residual resource amount of the baseband resource processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is less than or equal to the fourth resource threshold, the residual resource amount of the intermediate frequency module is less than or equal to the fifth resource threshold, and the residual resource amount of the radio frequency module is greater than a sixth resource threshold, determining that the uplink shunt is processed by the radio frequency module.

In an implementation manner, when the number of split cells supportable by the baseband frequency domain resource of the baseband processing is greater than a first number threshold, it is determined that the position of the uplink branch is after FFT processing. When the number of the split cells supportable by the baseband frequency domain resource processed by the baseband is less than or equal to the first number threshold and the number of the split cells supportable by the baseband time domain resource processed by the baseband is greater than the second number threshold, determining that the position of the uplink branch is after the processing of the switching module and before the FFT processing. And when the number of the split cells supportable by the baseband resources processed by the baseband is less than or equal to a third number threshold and the number of the split cells supportable by the switching module is greater than a fourth number threshold, determining that the uplink branch is processed at the switching module. When the number of the split cells supportable by the resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than a fifth number threshold, it is determined that the uplink branch is processed in the intermediate frequency module. When the number of the split cells supportable by the resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, the number of the split cells supportable by the intermediate frequency module is less than or equal to the fifth number threshold, and the number of the split cells supportable by the radio frequency module is greater than the sixth number threshold, it is determined that the uplink branch is processed at the radio frequency module.

In the embodiment of the application, the complexity is reduced by domain conversion, the uplink branch allows the transformation processing of a frequency domain, a time domain, an antenna domain, a beam domain and the like, the branch processing can be performed after the beam domain transformation instead of the direct branch processing of the frequency domain and the time domain, and a reasonable processing method is selected to reduce the complexity. For example, uplink processing is switched from the antenna domain to the beam domain to reduce complexity.

Step S503: and the network equipment performs uplink shunting on the decompressed third data at the determined position to obtain at least one third unit of data.

In the method described in fig. 5, the network device decompresses the split beam data in the uplink transmission process, and then performs splitting, so as to avoid that the splitting destroys the FCA header and the check factor after the baseband is decompressed, and to support the CPRI high compression ratio algorithm (for the frame header and other compressed high compression ratio algorithms, decompression needs to be performed first and then splitting is performed, and for the frame header uncompressed algorithm, decompression and splitting do not have necessary processing order constraints), so that more split cells can be effectively supported under the conditions of software and hardware specifications, switching processing, medium radio frequency and other processing specification limitations in the baseband chip included in the baseband processing, and CPRI transmission bandwidth limitations between the baseband board and the medium radio frequency.

By taking the supported cell as a Massive MIMO cell as an example, the supported MM cell is doubled in specification under the scene of unchanged CPRI transmission bandwidth through the data transmission method disclosed by the embodiment of the application.

For example, a single plate supporting 2 × 20m 64t64r becomes supporting 4 × 20m post-cleavage 64T64R.64T64R 20MHz Massive MIMO cell requires the CPRI transmission bandwidth to be about 9.8G × 8=80G, and under the scene that CPRI compression is 2: 1, a 100G CPRI optical fiber can support 2 64T64R 20MHz cells. And by flexibly selecting the combining and splitting points, the 100G CPRI optical fiber can support more than 2 64T64R cells, for example, if 1 64t64r 20M cell splits into 2 64t64r 20M cells, the transmission resource can support 4 64t64 20MHz splitting cells in total, and if 1 splits into 3 splitting cells, the transmission resource can support 6 64t64 20MHz splitting cells in total.

The method of the embodiments of the present application is explained in detail above, and the related apparatus of the embodiments of the present application is provided below.

Fig. 6 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application, where the communication apparatus is configured to perform the steps performed by the network device in the method embodiment corresponding to fig. 4, and the communication apparatus may include:

a processing unit 601, configured to split the first data by using a soft splitting technology to obtain at least one first unit data;

the processing unit 601 is further configured to determine a position of the downlink combining path;

the processing unit 601 is further configured to perform downlink combining on the at least one first unit data at the determined position to obtain second data;

the processing unit 601 is further configured to perform compression processing on the second data;

a sending unit 602, configured to transmit the compressed second data.

In one implementation, the determining, by the processing unit 601, the position of the downlink combining includes:

and determining the position of the downlink combination according to configuration information, wherein the configuration information is used for indicating the position of the downlink combination.

In one implementation, the determined position is before IFFT processing included in baseband processing, or after IFFT processing and before switching module processing, or the switching module processing, or intermediate frequency module processing, or radio frequency module processing.

In one implementation manner, the determining, by the processing unit 601, the location of the downlink combining includes:

acquiring state information, wherein the state information includes the remaining resource amount or supportable number of split cells of a baseband resource processed by a baseband and/or the remaining resource amount or supportable number of split cells of a radio frequency resource, and the baseband resource includes a baseband frequency domain resource, a baseband time domain resource and a beam domain resource;

and determining the position of the downlink combining path according to the state information.

In one implementation, the determining, by the processing unit 601, the position of the downlink combining according to the state information includes:

when the residual resource amount of the baseband frequency domain resources processed by the baseband is greater than a first resource threshold value, determining that the position of the downlink combiner is before IFFT processing;

when the residual resource amount of the baseband frequency domain resource processed by the baseband is less than or equal to the first resource threshold value and the residual resource amount of the baseband time domain resource processed by the baseband is greater than a second resource threshold value, determining that the position of the downlink combiner is after the IFFT processing and before the switching module processing;

when the residual resource amount of the baseband resources processed by the baseband is less than or equal to a third resource threshold value and the residual resource amount of the switching module is greater than a fourth resource threshold value, determining that the downlink combiner is processed at the switching module;

when the remaining resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the remaining resource amount of the switching module is less than or equal to the fourth resource threshold, and the remaining resource amount of the intermediate frequency module is greater than a fifth resource threshold, determining that the downlink combiner is processed at the intermediate frequency module;

when the remaining resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the remaining resource amount of the switching module is less than or equal to the fourth resource threshold, the remaining resource amount of the intermediate frequency module is less than or equal to the fifth resource threshold, and the remaining resource amount of the radio frequency module is greater than a sixth resource threshold, determining that the downlink combiner is processed at the radio frequency module.

In an implementation manner, the determining, by the processing unit 601, the position of the downlink combining according to the state information includes:

when the number of split cells which can be supported by the baseband frequency domain resources processed by the baseband is greater than a first number threshold, determining that the position of the downlink combining path is before the IFFT processing;

when the number of the split cells supportable by the baseband frequency domain resource processed by the baseband is less than or equal to the first number threshold and the number of the split cells supportable by the baseband time domain resource processed by the baseband is greater than a second number threshold, determining that the position of the downlink combiner is after the IFFT processing and before the switching module processing;

when the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to a third number threshold and the number of the split cells supportable by the switching module is greater than a fourth number threshold, determining that the downlink combiner is processed at the switching module;

when the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than a fifth number threshold, determining that the downlink combiner is processed in the intermediate frequency module;

when the number of split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of split cells supportable by the switching module is less than or equal to the fourth number threshold, the number of split cells supportable by the intermediate frequency module is less than or equal to the fifth number threshold, and the number of split cells supportable by the radio frequency module is greater than the sixth number threshold, determining that the downlink combiner is processed at the radio frequency module.

It should be noted that, for details that are not mentioned in the embodiment corresponding to fig. 6 and the specific implementation manner of the step executed by each unit, reference may be made to the embodiment shown in fig. 4 and the foregoing description, and details are not described here again.

Fig. 6 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application, where the communication apparatus is configured to perform the steps performed by the network device in the method embodiment corresponding to fig. 5, and the communication apparatus may include:

a receiving unit 603, configured to receive third data from the terminal device;

a processing unit 601, configured to decompress the third data and transmit the decompressed third data;

the processing unit 601 is further configured to determine a location of the uplink branch;

the processing unit 601 is further configured to perform uplink splitting on the decompressed third data at the determined position to obtain at least one third unit data.

In one implementation, the processing unit 601 determines the location of the upstream branch, including:

receiving configuration information from network equipment, wherein the configuration information is used for indicating the position of an uplink shunt circuit;

and determining the position of the uplink shunt circuit according to the configuration information.

In one implementation, the determined position is after FFT processing of fourier transform processing included in baseband processing, or after switching module processing and before FFT processing, or the switching module processing, or intermediate frequency module processing, or radio frequency module processing.

and determining the position of the uplink shunt according to the state information.

In one implementation, the determining, by the processing unit 601, the location of the uplink branch according to the state information includes:

when the residual resource amount of the baseband frequency domain resources processed by the baseband is larger than a first resource threshold value, determining that the position of the uplink shunt is after FFT processing;

when the residual resource amount of the baseband frequency domain resource processed by the baseband is less than or equal to the first resource threshold and the residual resource amount of the baseband time domain resource processed by the baseband is greater than a second resource threshold, determining that the position of the uplink shunt is after the processing of the switching module and before the FFT processing;

when the residual resource amount of the baseband resource processed by the baseband is less than or equal to a third resource threshold and the residual resource amount of the switching module is greater than a fourth resource threshold, determining that the uplink shunt is processed at the switching module;

when the residual resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is less than or equal to the fourth resource threshold, and the residual resource amount of the intermediate frequency module is greater than a fifth resource threshold, determining that the uplink shunt is processed by the intermediate frequency module;

and when the residual resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is less than or equal to the fourth resource threshold, the residual resource amount of the intermediate frequency module is less than or equal to the fifth resource threshold, and the residual resource amount of the radio frequency module is greater than a sixth resource threshold, determining that the uplink shunt is processed at the radio frequency module.

In one implementation manner, the determining, by the processing unit 601, the location of the upstream branch according to the state information includes:

when the number of the split cells which can be supported by the baseband frequency domain resources processed by the baseband is greater than a first number threshold, determining that the position of the uplink shunt is after FFT processing;

when the number of the split cells supportable by the baseband frequency domain resource processed by the baseband is less than or equal to the first number threshold and the number of the split cells supportable by the baseband time domain resource processed by the baseband is greater than a second number threshold, determining that the position of the uplink branch is after the processing of the switching module and before the FFT processing;

when the number of the split cells supportable by the baseband resources processed by the baseband is less than or equal to a third number threshold and the number of the split cells supportable by the switching module is greater than a fourth number threshold, determining that the uplink branch is processed at the switching module;

when the number of the split cells supportable by the resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than a fifth number threshold, determining that the uplink branch is processed in the intermediate frequency module;

when the number of the split cells supportable by the resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, the number of the split cells supportable by the intermediate frequency module is less than or equal to the fifth number threshold, and the number of the split cells supportable by the radio frequency module is greater than the sixth number threshold, it is determined that the uplink branch is processed at the radio frequency module.

It should be noted that, for details that are not mentioned in the embodiment corresponding to fig. 6 and the specific implementation manner of the step executed by each unit, reference may be made to the embodiment shown in fig. 5 and the foregoing description, and details are not described here again.

In one implementation, the relevant functions implemented by the various units in FIG. 6 may be implemented in conjunction with a processor and a communications interface. Fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention, where the communication device includes a processor 701, a memory 702, and a communication interface 703, and the processor 701, the memory 702, and the communication interface 703 are connected by one or more communication buses.

The processor 701 is configured to enable the communication device to perform the method described in fig. 4. The processor 701 may be a Central Processing Unit (CPU), a Network Processor (NP), a hardware chip, or any combination thereof.

The memory 702 is used to store program codes and the like. The memory 702 may include volatile memory (volatile memory), such as Random Access Memory (RAM); the memory 702 may also include a non-volatile memory (non-volatile memory), such as a read-only memory (ROM), a flash memory (flash memory), a hard disk (HDD) or a solid-state drive (SSD); the memory 702 may also comprise a combination of the above types of memory.

The communication interface 703 is used for receiving and transmitting data.

In an embodiment of the present invention, the communication device includes a plurality of communication interfaces, where a communication interface for transmitting data and a communication interface for receiving data may not be the same communication interface.

The processor 701 may call the program code stored in the memory 702 to perform the following operations:

splitting the first data by using a soft splitting technology to obtain at least one first unit data;

determining the position of a downlink combiner;

performing downlink combination on the at least one first unit data at the determined position to obtain second data;

and compressing the second data, and transmitting the compressed second data through the communication interface 703.

In one implementation, the processor 701 may call program code stored in the memory 702 to perform the following operations:

In one implementation, the determined position is before IFFT processing included in baseband processing, or after IFFT processing and before switching module processing, or after switching module processing, or intermediate frequency module processing, or radio frequency module processing.

In one implementation, the processor 701 may call the program code stored in the memory 702 to perform the following:

acquiring state information, wherein the state information comprises the residual resource amount of baseband resources processed by a baseband or the supportable number of split cells and/or the residual resource amount of radio frequency resources or the supportable number of split cells, and the baseband resources comprise baseband frequency domain resources, baseband time domain resources and beam domain resources;

when the residual resource amount of the baseband resource processed by the baseband is less than or equal to a third resource threshold value and the residual resource amount of the switching module is greater than a fourth resource threshold value, determining that the downlink combiner is processed by the switching module;

and when the residual resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is less than or equal to the fourth resource threshold, the residual resource amount of the intermediate frequency module is less than or equal to the fifth resource threshold, and the residual resource amount of the radio frequency module is greater than a sixth resource threshold, determining that the downlink combiner is processed at the radio frequency module.

It should be noted that, for details that are not mentioned in the embodiment corresponding to fig. 7 and the specific implementation manner of the step executed by each device, reference may be made to the embodiment shown in fig. 4 and the foregoing description, and details are not described here again.

In one implementation, the processor 701 is configured to enable the communication device to perform the method described in fig. 5. The processor 701 may call the program code stored in the memory 702 to perform the following operations:

receiving third data from the terminal device through the communication interface 703;

decompressing the third data and transmitting the decompressed third data;

determining the position of an uplink shunt;

and carrying out uplink shunting on the decompressed third data at the determined position to obtain at least one third unit data.

receiving configuration information from network equipment, wherein the configuration information is used for indicating the position of an uplink shunt;

and determining the position of the uplink shunt according to the configuration information.

It should be noted that, for details that are not mentioned in the embodiment corresponding to fig. 7 and the specific implementation manner of the step executed by each device, reference may be made to the embodiment shown in fig. 5 and the foregoing description, and details are not described here again.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of data transmission, the method comprising:

determining the position of a downlink combiner;

compressing the second data, and transmitting the compressed second data;

the determining the position of the downlink combining path includes:

acquiring state information, wherein the state information comprises the residual resource amount of baseband resources or the supportable number of split cells processed by a baseband and/or the residual resource amount of radio frequency resources or the supportable number of split cells, and the baseband resources comprise baseband frequency domain resources, baseband time domain resources and beam domain resources;

2. The method according to claim 1, wherein the determined position is before IFFT processing by inverse fourier transform processing included in baseband processing, or after IFFT processing and before switching module processing, or the intermediate frequency module processing, or the radio frequency module processing.

3. The method of claim 1, wherein the determining the location of the downlink combination according to the state information comprises:

when the residual resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is less than or equal to the fourth resource threshold, and the residual resource amount of the intermediate frequency module is greater than a fifth resource threshold, determining that the downlink combiner is processed in the intermediate frequency module;

4. The method of claim 1, wherein the determining the location of the downlink combination according to the state information comprises:

when the number of split cells supportable by the baseband frequency domain resources processed by the baseband is greater than a first number threshold, determining that the position of the downlink combining path is before the IFFT processing;

when the number of the split cells supportable by the baseband resources processed by the baseband is less than or equal to a third number threshold and the number of the split cells supportable by the switching module is greater than a fourth number threshold, determining that the downlink combiner is processed at the switching module;

when the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than a fifth number threshold, determining that the downlink combiner is processed at the intermediate frequency module;

when the number of the split cells supportable by the baseband resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, the number of the split cells supportable by the intermediate frequency module is less than or equal to the fifth number threshold, and the number of the split cells supportable by the radio frequency module is greater than the sixth number threshold, it is determined that the downlink combiner is processed at the radio frequency module.

5. A method of data transmission, the method comprising:

decompressing the third data and transmitting the decompressed third data;

determining the position of an uplink shunt;

performing uplink shunting on the decompressed third data at the determined position to obtain at least one third unit data;

the determining the position of the uplink shunt comprises:

6. The method according to claim 5, wherein the determined position is after a Fourier transform (FFT) process included in the baseband process, or after an exchange module process and before the FFT process, or the exchange module process, or an intermediate frequency module process, or a radio frequency module process.

7. The method of claim 5, wherein the determining the location of the upstream branch according to the status information comprises:

when the residual resource amount of the baseband frequency domain resources processed by the baseband is less than or equal to the first resource threshold and the residual resource amount of the baseband time domain resources processed by the baseband is greater than a second resource threshold, determining that the position of the uplink shunt is after the processing of the switching module and before the FFT processing;

when the residual resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is less than or equal to the fourth resource threshold, and the residual resource amount of the intermediate frequency module is greater than a fifth resource threshold, determining that the uplink shunt is processed in the intermediate frequency module;

and when the residual resource amount of the baseband resources processed by the baseband is less than or equal to the third resource threshold, the residual resource amount of the switching module is less than or equal to the fourth resource threshold, the residual resource amount of the intermediate frequency module is less than or equal to the fifth resource threshold, and the residual resource amount of the radio frequency module is greater than the sixth resource threshold, determining that the uplink shunt is processed at the radio frequency module.

8. The method of claim 5, wherein the determining the location of the upstream branch according to the status information comprises:

when the number of the split cells supportable by the baseband frequency domain resource processed by the baseband is less than or equal to the first number threshold and the number of the split cells supportable by the baseband time domain resource processed by the baseband is greater than a second number threshold, determining that the position of the uplink shunt is after the processing of the switching module and before the FFT processing;

when the number of the split cells supportable by the resource processed by the baseband is less than or equal to the third number threshold, the number of the split cells supportable by the switching module is less than or equal to the fourth number threshold, and the number of the split cells supportable by the intermediate frequency module is greater than a fifth number threshold, determining that the uplink branch is processed at the intermediate frequency module;

9. A communication apparatus, characterized in that the apparatus comprises means for implementing the data transmission method of any one of claims 1-8.

10. A computer storage medium, characterized in that it stores a computer program or instructions which, when executed by a processor, cause the processor to carry out the method according to any one of claims 1-8.

11. A communication device comprising a processor, the processor coupled with a memory,

the memory to store instructions;

the processor to execute instructions in the memory to cause the communication device to perform the method of any of claims 1 to 8.