5g fronthaul data compression / decompression method, communication system, device and medium

Abstract

The application discloses a 5G front transmission data compression / decompression method, a communication system, equipment and a medium. The 5G front transmission data compression method comprises the following steps: obtaining a target level gain of to-be-transmitted data, compressing the to-be-transmitted data according to the target level gain, and obtaining target compressed data, wherein the target level gain comprises a symbol level gain, a resource block level gain and a resource element level gain; and transmitting the target compressed data to at least one target receiving unit through eCPR I. The to-be-transmitted data can be effectively compressed, the interface rate of uplink and downlink front transmission data is reduced, and the transmission capacity of the front transmission network is improved without increasing the hardware cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication, in particular to a 5G fronthaul data compression / decompression method, a communication system, a device and a medium. BACKGROUND

[0002] In the network evolution from 4G to 5G, the fronthaul interface rate between the baseband unit and the radio frequency unit is increased, which requires the fronthaul network to have higher transmission capacity. Based on the traditional Option8 CPRI interface, the interface rate is about 40Gps under the four-transmitting and four-receiving 200MHz signal bandwidth configuration, and the interface rate is about 20Gps after 2:1 time domain compression processing. Based on the Option7-2 ECPRI interface, the interface rate is about 24Gps under the four-transmitting and four-receiving 200MHz signal bandwidth configuration. In actual application, the interface rate needs to be increased to 25G level in the above two ways, and this rate increase requirement increases the cost of fronthaul network reconstruction and upgrading. SUMMARY

[0003] In view of the above defects of the prior art, a 5G fronthaul data compression / decompression method, a communication system, a device and a medium are provided.

[0004] The technical scheme adopted by the present application to solve its technical problems is: a 5G fronthaul data compression method is provided, comprising: obtaining a target gain of to-be-transmitted data, compressing the to-be-transmitted data according to the target gain to obtain target compressed data, the target gain comprising a symbol level gain, a resource block level gain and a resource element level gain; and sending the target compressed data to at least one target receiving unit through eCPRI.

[0005] A 5G fronthaul data decompression method comprises: obtaining target compressed data sent by at least one target sending unit, parsing the target compressed data to obtain a target gain of the target compressed data, the target gain comprising a symbol level gain, a resource block level gain and a resource element level gain; and performing gain compensation on the target compressed data according to the target gain to obtain target received data.

[0006] A communication system comprises a sending unit and a receiving unit connected with each other; the sending unit comprises a data compression module and a packet sending processing module, the data compression module is used for obtaining a target level gain of to-be-transmitted data, compressing the to-be-transmitted data according to the target level gain, and obtaining target compressed data, the target level gain comprises a symbol level gain, a resource block level gain and a resource element level gain, the packet sending processing module is used for sending the target compressed data to at least one target receiving unit through eCPRI; the receiving unit comprises an obtaining module and a compensation module, the obtaining module is used for obtaining the target compressed data sent by at least one target sending unit, and analyzing the target compressed data to obtain the target level gain of the target compressed data, the target level gain comprises a symbol level gain, a resource block level gain and a resource element level gain; the compensation module is used for gain compensating the target compressed data according to the target level gain, and obtaining target receiving data; wherein one of the sending unit and the receiving unit is a 5G baseband unit, and the other is a 5G radio frequency unit.

[0007] A communication device comprises a memory and a processor, the memory stores a computer program, and the computer program is executed by the processor to make the processor execute the steps of the above method.

[0008] A computer readable storage medium stores a computer program, and the computer program is executed by a processor to make the processor execute the steps of the above method.

[0009] The present application has the beneficial effect that, compared with the prior art, the target level gain of to-be-transmitted data is obtained, the to-be-transmitted data is compressed according to the target level gain, and target compressed data is obtained, the target level gain comprises a symbol level gain, a resource block level gain and a resource element level gain; the target compressed data is sent to at least one target receiving unit through eCPRI, which can effectively compress the to-be-transmitted data, reduce the interface rate of uplink and downlink front transmission data, and improve the transmission capacity of the front transmission network without increasing the hardware cost. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0011] Figure 1 is a flowchart of an embodiment of the 5G front transmission data compression method provided by the present application;

[0012] Figure 2 is a structural diagram of a data frame composed of original IQ data provided by the present application;

[0013] Figure 3 is a structural diagram of a target data frame composed of compressed IQ data provided by the present application;

[0014] Figure 4 is a flowchart of an embodiment of a 5G fronthaul data decompression method provided by the present application;

[0015] Figure 5 is a structural diagram of a first embodiment of a communication system provided by the present application;

[0016] Figure 6 is a structural diagram of a second embodiment of a communication system provided by the present application;

[0017] Figure 7 is a structural diagram of a third embodiment of a communication system provided by the present application;

[0018] Figure 8 is a structural diagram of a fourth embodiment of a communication system provided by the present application;

[0019] Figure 9 is a structural diagram of an embodiment of a communication device provided by the present application;

[0020] Figure 10 is a structural diagram of an embodiment of a storage medium provided by the present application. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figure 1 , Figure 1 is a flowchart of an embodiment of a 5G fronthaul data compression method provided by the present application. The 5G fronthaul data compression method provided by the present application includes the following steps:

[0023] S101: Obtain a target gain of to-be-transmitted data, compress the to-be-transmitted data according to the target gain, and obtain target compressed data. The target gain includes a symbol-level gain, a resource block-level gain, and a resource element-level gain.

[0024] In one specific implementation scenario, a target level gain of the to-be-transmitted data is obtained, the target level gain including a symbol level gain, a resource block level gain, and a resource element level gain. The to-be-transmitted data is compressed according to the target level gain, and target compressed data is obtained. Specifically, a final gain can be calculated according to the symbol level gain, the RB level gain, and the RE level gain, and the to-be-transmitted data is compressed according to the final gain. For example, the symbol level gain is 2, the RB (Resource Block) level gain is 2, and the RE (Resource Element) level gain is 2, and then the final gain is 2*2*2=8. The to-be-transmitted data is compressed according to the final gain 8.

[0025] In other implementation scenarios, the to-be-transmitted data can also be first compressed according to the symbol level gain to obtain a first compression result, the first compression result is second compressed according to the resource block level gain to obtain a second compression result, and the second compression result is third compressed according to the resource element level gain. For example, the symbol level gain is 2, the to-be-transmitted data is first compressed according to the gain 2 to obtain the first compression result, the RB level gain is 2, the first compression result is compressed according to the gain 2 to obtain the second compression result, and the RE level gain is 2, and then the second compression result is compressed according to the gain 2. The effects of the two compression methods are theoretically the same.

[0026] In one specific implementation scenario, the orthogonal frequency division multiplexing symbol power of the to-be-transmitted data is detected in the time domain, and a symbol level gain corresponding to the orthogonal frequency division multiplexing symbol power is obtained. A first lookup table can be pre-set, and the first lookup table includes symbol level gains corresponding to different orthogonal frequency division multiplexing symbol powers. The symbol level gain corresponding to the orthogonal frequency division multiplexing symbol power is obtained by looking up the table.

[0027] Symbol (i.e., symbol) is the smallest range in the time domain, and one symbol is 0.5 / 14 ms (about 35.7 us). RE (Resource Element): The smallest time-frequency resource unit of 5G NR, occupying 1 subcarrier (30 KHz) in the frequency domain and 1 OFDM symbol (0.5 / 14 ms) in the time domain. RB (Resource Block): The smallest physical resource unit that can be scheduled by a wireless data channel, which is also the smallest scheduling unit of the 5G NR system. The uplink and downlink service channels are scheduled in units of RBs. At least one OFDM symbol in the time domain and 12 consecutive subcarriers in the frequency domain.

[0028] In the frequency domain, using resource blocks as units, obtain the maximum element power among the element powers corresponding to the 12 resource elements in each resource block. Use the maximum element power as the resource block power of the corresponding resource block to obtain the resource block-level gain corresponding to the resource block power. A second comparison table can be pre-set, including resource block-level gains corresponding to different resource block powers. The resource block-level gain corresponding to the resource block power is obtained by looking up the table.

[0029] In the frequency domain, using resource elements as units, the maximum signal power among the signal powers of the I-channel data and the Q-channel data of each resource element is obtained. The maximum signal power is used as the element power of the corresponding resource element, and the resource element-level gain corresponding to the element power is obtained. A third comparison table can be pre-set, including resource element-level gains corresponding to different resource element powers. The resource element-level gain corresponding to the resource element power is obtained by looking up the table.

[0030] Get the order of compressed I-channel data and Q-channel data, which can be predefined, for example, according to the received timing definition order, and combine the original I-channel data and Q-channel data into the target data frame according to the target level gain and compression order. Figure 2 and Figure 3 , Figure 2 It is a schematic diagram of the structure of a data frame composed of original IQ data provided by the present invention. Figure 3 It is a schematic diagram of the structure of a target data frame composed of compressed IQ data provided by the present invention.

[0031] like Figure 2 and Figure 3 As shown in , the target data frame includes symbol-level gain Symbol i Gain[7:0](i∈{0, 1, ..., 13}), RB-level gain RB i Gain[2:0](i∈{0, 1, ..., 272}), and RE-level gain RE i IQ Gain[0](i∈{0, 1, ..., 11}). That is, while the data to be transmitted is compressed, the target-level gain based on the compression is included in the target data frame, so that gain compensation can be performed based on the target-level gain during decompression at the receiving end.

[0032] S102: Send target compressed data to at least one target receiving unit via eCPRI.

[0033] In a specific implementation scenario, the target compressed data is sent to at least one target radio frequency unit via an eCPRI interface. The transmitting unit can be connected to one or more target receiving units at the same time, and the generated target compressed data can be sent to the one or more connected target receiving units at the same time.

[0034] It can be known from the above description that in the embodiment, the target level gain of the to-be-transmitted data is acquired, the to-be-transmitted data is compressed according to the target level gain, and the target compressed data is acquired, the target level gain includes the symbol level gain, the resource block level gain and the resource element level gain; and the target compressed data is sent to at least one target receiving unit through eCPRI, so that the to-be-transmitted data can be effectively compressed, the interface rate of uplink and downlink front transmission data is reduced, and the transmission capacity of the front transmission network is improved without increasing the hardware cost.

[0035] Please refer to Figure 4 , Figure 4 is a flowchart of an embodiment of the 5G front transmission data decompression method provided by the application. The 5G front transmission data decompression method provided by the application includes the following steps:

[0036] S201: acquiring target compressed data sent by at least one target sending unit, analyzing the target compressed data to acquire target level gain of the target compressed data, the target level gain including symbol level gain, resource block level gain and resource element level gain.

[0037] In a specific implementation scenario, the target receiving unit can be connected with one or more target sending units through an eCPRI interface at the same time, and target compressed data sent by at least one target sending unit is acquired. The target compressed data includes a target data frame, and the target data frame is analyzed by data frame analysis. The method of analyzing the data frame is not limited here. The target level gain of the target compressed data is acquired, and the target level gain includes the symbol level gain, the resource block level gain and the resource element level gain.

[0038] Specifically, please refer to Figure 2 and Figure 3 , as shown in Figure 3 , the target data frame includes symbol level gain Symbol i Gain[7:0] (i∈{0,1,…,13}), RB level gain RB i Gain[2:0] (i∈{0,1,…,272}) and RE level gain RE i IQ Gain[0] (i∈{0,1,…,11}). By analyzing the target data frame in the target compressed data, the target level gain can be acquired.

[0039] S202: gain compensation is performed on the target compressed data according to the target level gain, and target receiving data is acquired.

[0040] In a specific implementation scenario, after the target level gain is parsed and the target data frame is obtained, the target data frame is gain compensated according to the target level gain to obtain target receiving data. The final gain is calculated according to the symbol level gain, the RB level gain and the RE level gain, and the target compressed data is gain compensated according to the final gain. For example, the symbol level gain is 2, the RB (Resource Block) level gain is 2, and the RE (Resource Element) level gain is 2, and the final gain is 2*2*2=8. The target data is gain compensated according to the final gain 8.

[0041] In other implementation scenarios, the first gain compensation can also be performed on the to-be-transmitted data according to the symbol level gain to obtain a first compensation result, the second gain compensation is performed on the first compensation result according to the resource block level gain to obtain a second compensation result, and the third gain compensation is performed on the second compressed result according to the resource element level gain. For example, the symbol level gain is 2, the target data frame is gain compensated according to the gain 2 to obtain the first compensation result, the RB level gain is 2, the first compensation result is gain compensated according to the gain 2 to obtain the second compensation result, and the RE level gain is 2, and the second compensation result is gain compensated according to the gain 2. The effects of the two gain compensation methods are theoretically the same.

[0042] As can be known from the above description, in the embodiment, the target compressed data transmitted by at least one target sending unit is obtained, the target level gain of the target compressed data is parsed to obtain the target level gain of the target compressed data, the target level gain includes the symbol level gain, the resource block level gain and the resource element level gain, and the target compressed data is gain compensated according to the target level gain to obtain target receiving data. The data can be effectively compressed and gain compensated, the interface rate of uplink and downlink front transmission data is reduced, and the transmission capacity of the front transmission network is improved without increasing the hardware cost.

[0043] Please refer to Figure 5 and Figure 6 , Figure 5 is a structural schematic diagram of a first embodiment of a communication system provided by the application, Figure 6 is a structural schematic diagram of a second embodiment of a communication system provided by the application. Figure 5 In the embodiment, the to-be-transmitted data is downlink data, the 5G baseband unit is a sending unit, and the 5G radio frequency unit is a receiving unit, Figure 6The to-be-transmitted data is uplink data, the 5G radio frequency unit is a sending unit, and the 5G baseband unit is a receiving unit. The sending unit comprises a data compression module and a packet sending processing module. The data compression module is configured to obtain a target level gain of the to-be-transmitted data, compress the to-be-transmitted data according to the target level gain, and obtain target compressed data. The target level gain comprises a symbol level gain, a resource block level gain and a resource element level gain. The packet sending processing module is configured to send the target compressed data to at least one target receiving unit through eCPRI. The receiving unit comprises an obtaining module and a compensation module. The obtaining module is configured to obtain the target compressed data sent by the at least one target sending unit, and analyze the target compressed data to obtain the target level gain of the target compressed data. The target level gain comprises a symbol level gain, a resource block level gain and a resource element level gain. The compensation module is configured to compensate the target compressed data according to the target level gain, and obtain target received data.

[0044] According to the above description, the sending unit obtains the target level gain of the to-be-transmitted data, compresses the to-be-transmitted data according to the target level gain, and obtains target compressed data. The target level gain comprises a symbol level gain, a resource block level gain and a resource element level gain. The target compressed data is sent to the receiving unit through eCPRI. The receiving unit obtains the target compressed data sent by the sending unit, analyzes the target compressed data to obtain the target level gain of the target compressed data, and compensates the target compressed data according to the target level gain to obtain target received data. The to-be-transmitted data can be effectively compressed, the interface rate of uplink and downlink front transmission data is reduced, and the transmission capacity of the front transmission network is improved without increasing the hardware cost.

[0045] Please refer to Figure 7 and Figure 8 , Figure 7 is a structural schematic diagram of a third embodiment of a communication system provided by the application, Figure 8 is a structural schematic diagram of a fourth embodiment of a communication system provided by the application. Figure 7 In the embodiment, the to-be-transmitted data is downlink data sent by the 5G baseband unit, the 5G radio frequency data distribution unit is a sending unit, and the plurality of 5G radio frequency units are receiving units. Figure 6 In the embodiment, the to-be-transmitted data is uplink data, the 5G radio frequency data merging unit is a receiving unit, and the plurality of 5G radio frequencies are receiving units. The 5G radio frequency data merging unit sends the data after decompression processing to the 5G baseband unit.

[0046] In Figure 7In the application scenario shown, the 5G radio frequency data distribution unit performs data compression processing on the downlink data sent by the 5G baseband unit, and then performs packet sending processing through the eCPRI interface to send to multiple 5G radio frequency units (three are shown in the figure, and the actual application scenario can be any number). The working content of the 5G radio frequency data distribution unit and each 5G radio frequency unit is basically the same as that of the sending unit and the receiving unit in the foregoing, which will not be described here.

[0047] In Figure 8 In the application scenario shown, each 5G radio frequency unit performs data compression processing on the received uplink data, and then performs packet sending processing through the eCPRI interface, and the 5G radio frequency data merging unit receives the target compressed data sent by multiple 5G radio frequency units. The working content of each 5G radio frequency unit and the 5G radio frequency data merging unit is basically the same as that of the sending unit and the receiving unit in the foregoing, which will not be described here.

[0048] As can be known from the foregoing description, the sending unit can simultaneously send target compressed data to multiple receiving units, and the receiving unit can simultaneously receive target compressed data sent by multiple sending units, which can further improve the data transmission efficiency and improve the transmission capability of the front-haul network.

[0049] Please refer to Figure 9 , Figure 9 is a structural schematic diagram of an embodiment of the communication device provided by the application. The communication device 20 comprises a processor 21 and a memory 22. The processor 21 is coupled to the memory 22. The memory 22 stores a computer program. The processor 21 executes the computer program when working to implement the method shown in Figure 1 and Figure 4 . The detailed method can be referred to the foregoing, which will not be described here.

[0050] Please refer to Figure 10 , Figure 10 is a structural schematic diagram of an embodiment of the storage medium provided by the application. The storage medium 30 stores at least one computer program 31. The computer program 31 is used to be executed by a processor to implement the method shown in Figure 1 or Figure 4 . The detailed method can be referred to the foregoing, which will not be described here. In an embodiment, the readable storage medium 30 can be a storage chip in a terminal, a hard disk or a mobile hard disk or an optical disc or other readable and writable storage tools, and can also be a server and the like.

[0051] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0052] The above embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A 5G fronthaul data compression method, characterized in that: include: Obtaining a target level gain of data to be transmitted, compressing the data to be transmitted according to the target level gain to obtain target compressed data, wherein the target level gain includes a symbol level gain, a resource block level gain, and a resource element level gain; Sending the target compressed data to at least one target receiving unit via eCPRI; The step of obtaining a target level gain of the data to be transmitted includes: Detecting the orthogonal frequency division multiplexing symbol power of the data to be transmitted in the time domain, and obtaining a symbol-level gain corresponding to the orthogonal frequency division multiplexing symbol power; In the frequency domain, taking resource blocks as units, obtaining the maximum element power of 12 resource elements in each resource block, using the maximum element power as the resource block power of the corresponding resource block, and obtaining the resource block-level gain corresponding to the resource block power; In the frequency domain, taking resource elements as units, obtaining the maximum signal power of I-channel data and Q-channel data of each resource element, taking the maximum signal power as the element power of the corresponding resource element, and obtaining the resource element-level gain corresponding to the element power; The step of compressing the data to be transmitted according to the target level gain includes: multiplying the symbol-level gain, the resource block-level gain, and the resource element-level gain to calculate a final gain, and compressing the data to be transmitted according to the final gain; or Performing a first compression on the data to be transmitted according to the symbol-level gain to obtain a first compression result; Performing a second compression on the first compression result according to the resource block level gain to obtain a second compression result; A third compression is performed on the second compression result according to the resource element level gain.

2. The 5G fronthaul data compression method according to claim 1, characterized in that The step of compressing the data to be transmitted according to the target level gain to obtain target compressed data includes: The original I-path data and the Q-path data are combined into a target data frame according to the target level gain and the order of compressing the I-path data and the Q-path data.

3. A communication system, characterized in that: The communication system compresses 5G fronthaul data using the 5G fronthaul data compression method according to any one of claims 1 or 2, and the communication system comprises: a sending unit and a receiving unit connected to each other; The sending unit includes a data compression module and a packet processing module, the data compression module is used to obtain a target level gain of the data to be transmitted, compress the data to be transmitted according to the target level gain, and obtain target compressed data, the target level gain includes a symbol level gain, a resource block level gain, and a resource element level gain, and the packet processing module is used to send the target compressed data to at least one target receiving unit through eCPR I; The receiving unit includes an acquisition module and a compensation module, wherein the acquisition module is used to acquire target compressed data sent by at least one target sending unit, parse the target compressed data to obtain a target level gain of the target compressed data, wherein the target level gain includes a symbol level gain, a resource block level gain, and a resource element level gain; and the compensation module is used to perform gain compensation on the target compressed data according to the target level gain to obtain target received data. Among them, one of the sending unit and the receiving unit is a 5G baseband unit, and the other is a 5G radio frequency unit.

4. The communication system according to claim 3, wherein: One of the sending unit and the receiving unit is a 5G radio frequency data distribution unit or a 5G radio frequency data merging unit, and the other is a 5G radio frequency unit, and the number of the 5G radio frequency units is multiple.

5. A communication device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method according to any one of claims 1 to 2.

6. A computer-readable storage medium, characterized in that A computer program is stored, and when the computer program is executed by a processor, the processor is caused to perform the steps of the method according to any one of claims 1 to 2.

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