CN107005349A

CN107005349A - A kind of data processing method, base station and terminal device

Info

Publication number: CN107005349A
Application number: CN201580065157.5A
Authority: CN
Inventors: 田春长; 陈帆; 蔺同宇; 望育梅
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-09-09
Filing date: 2015-09-09
Publication date: 2017-08-01
Anticipated expiration: 2035-09-09
Also published as: CN107005349B; WO2017041248A1

Abstract

A kind of data processing method, base station and terminal device.Wherein, a kind of data processing method includes：Base station carries out channel coding to the first CB, obtains the 3rd CB, the 3rd CB includes：The first system information, first via check information and the second road check information；Base station carries out channel coding to the 2nd CB, obtains the 4th CB, the 4th CB includes：Second system information, the 3rd road check information and the 4th road check information, the significance level of the data of the 3rd CB carryings are more than the significance level for the data that the 4th CB is carried；Preset encoder matrix is multiplied by base station with the first system information, generates the check information of linear block codes；Base station carries out XOR calculating to the check information and second system information of linear block codes, obtains the 3rd system information, the 4th CB second system information included is replaced with into the 3rd system information, the 5th CB is obtained；Base station sends the 3rd CB to terminal device, and base station sends the 5th CB to terminal device.

Description

Data processing method, base station and terminal equipment

Technical Field

The present invention relates to the field of communications, and in particular, to a data processing method, a base station, and a terminal device.

Background

In recent years, mobile terminals are increasingly intelligent, and the types of the mobile terminals are rich, the performance of the terminals is continuously improved, and the functions and services supported by the mobile terminals are more and more rich, particularly, in a Long Term Evolution (LTE) system officially used in 2013, the downlink peak rate of the LTE system reaches 100 megabits per second (Mbps), better mobile internet experience can be provided for users, and the generated mobile data traffic also shows explosive growth.

Compared with other services in mobile terminals, video services are rapidly developed, and have a larger bit rate characteristic, video traffic will become a main data source of future mobile networks.

The Video original data sequence needs to be compressed and coded before network transmission, and the currently mainly used Video compression Coding standard is h.264/Advanced Video Coding (AVC) or Scalable Video Coding (SVC). No matter which video coding standard is adopted, a Group Of Pictures (GOP) is taken as a minimum coding unit, data among the GOPs are mutually independent, namely a video image can be independently decoded and reconstructed according to received data at a receiving end, correlation exists among video frames in the GOPs, the video frames are divided into I, P, B frame types, besides, coding control parameters used by a decoder are also arranged in the GOPs, wherein I frames are internal coding frames and can be independently decoded, P frames are forward prediction frames and can be decoded only by depending on I frames, and B frames are bidirectional interpolation frames and can be decoded only by depending on I frames or P frames. For the above four types of information, the data packets (i.e. a segment of bit sequence) with the same length have different degrees of influence on decoding reconstruction at the receiving end, and are arranged from high to low as coding control parameters, I frames, P frames, and B frames.

SVC is an extended version of h.264/AVC, and encodes a video sequence into a data stream including a plurality of interdependent layers, wherein the lowest Layer is called a Base Layer (BL), which can recover video images of the most basic quality, and the upper Layer based on the Base Layer is an Enhancement Layer (EL), which can enhance the image quality of the video. In the SVC coding scheme, all ELs must rely on the BL for decoding, and if there are multiple ELs, an EL at a higher layer must rely on an EL at a lower layer for decoding. In an actual video service system, according to a specific requirement of a user, a corresponding number of sub-layers (i.e., sub-streams) are extracted from a data stream, thereby realizing control of a video output bit rate.

The video service not only occupies a large flow proportion, but also has inconsistent influence degrees on the video recovery effect of different layers in the video service flow. For example, in the case of the same bit error rate, in the case that the bit error does not occur in the BL data and the EL data on average, when the bit error occurs in the BL data less, the recovery effect of the video data is significantly enhanced, because the decoding error of the BL data not only causes the BL data not to be recovered, but also affects the EL data even if it is correctly received. However, in the existing Transmission mechanism of downlink user plane Data at an evolved NodeB (eNB) side in an LTE Access network, Media Access Control (MAC) Protocol Data Units (PDUs) containing different layers of the same video service are multiplexed and generated in each Transmission Time Interval (TTI) and are processed in a physical layer by Equal Error Protection (EEP), which may result in the same probability of bit errors occurring in Data of different layers in the same video service Data, and a stronger Error Protection cannot be given to BL Data under the same network condition, thereby reducing the end-to-end Transmission quality of video.

Disclosure of Invention

The embodiment of the invention provides a data processing method, a base station and terminal equipment, which are used for improving the quality of data with high importance received by a receiving end.

In a first aspect, an embodiment of the present invention provides a data processing method, including:

the base station performs channel coding on the first code block CB to obtain a third CB, wherein the third CB comprises: the first system information, the first path of check information and the second path of check information;

the base station performs channel coding on the second CB to obtain a fourth CB, and the fourth CB comprises: the base station comprises a first system information, a second system information, a third path of check information and a fourth path of check information, wherein the importance degree of data carried by a third CB is greater than that of data carried by a fourth CB, and the first CB and the second CB are two code blocks obtained by the base station after the base station segments a transmission block;

the base station multiplies a preset coding matrix by the first system information to generate check information of the linear block code, and the coding matrix and the unit matrix form a generating matrix of the linear block code;

the base station performs exclusive-or calculation on the check information of the linear block code and the second system information to obtain third system information, and replaces the second system information included in the fourth CB with the third system information to obtain a fifth CB, wherein the fifth CB includes: third system information, third path verification information and fourth path verification information;

and the base station sends the third CB to a terminal device, and the base station sends the fifth CB to the terminal device.

With reference to the first aspect, in a first possible implementation manner of the first aspect, before the base station performs channel coding on the first code block CB to obtain a third CB, the method further includes:

and the base station performs Cyclic Redundancy Check (CRC) processing on the first CB.

With reference to the first aspect, in a second possible implementation manner of the first aspect, before the base station performs channel coding on the second CB to obtain a fourth CB, the method further includes:

and the base station performs CRC processing on the second CB.

With reference to the first aspect, in a third possible implementation manner of the first aspect, before the base station sends the third CB to a terminal device, and before the base station sends the fifth CB to the terminal device, the method further includes:

and the base station performs rate matching and interleaving coding on the third CB, performs rate matching and interleaving coding on the fifth CB, and then performs code block cascade and data modulation on the third CB after the interleaving coding and the fifth CB after the interleaving coding.

In a second aspect, an embodiment of the present invention further provides a data processing method, including:

the terminal equipment receives a third code block CB sent by the base station to obtain a third CB receiving sequence, wherein the third CB receiving sequence comprises: the system comprises a first system information receiving sequence, a first path check information receiving sequence and a second path check information receiving sequence;

the terminal device receives a fifth CB sent by the base station to obtain a fifth CB receiving sequence, where the fifth CB receiving sequence includes: a third system information receiving sequence, a third verification information receiving sequence and a fourth verification information receiving sequence;

after the terminal equipment obtains the third CB receiving sequence, the terminal equipment performs channel decoding on the third CB receiving sequence to obtain a third CB decoding result;

the terminal device multiplies the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performs exclusive or calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replaces the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, where the fourth CB receiving sequence includes: the second system information receiving sequence, the third verification information receiving sequence and the fourth verification information receiving sequence;

and the terminal equipment performs channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result.

With reference to the second aspect, in a first possible implementation manner of the second aspect, after the terminal device performs channel decoding on the fourth CB received sequence to obtain a fourth CB decoding result, the method further includes:

the terminal equipment judges whether channel decoding is successfully carried out on the third CB receiving sequence;

if the terminal equipment fails to decode the third CB receiving sequence by the channel, the terminal equipment performs exclusive OR calculation on the third system information receiving sequence and the fourth CB decoding result to generate auxiliary check information of the linear block code;

and the terminal equipment takes the auxiliary verification information and the third CB decoding result as the input of a linear block code decoder to obtain a third CB correction result output by the linear block code decoder.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, after the terminal device determines whether channel decoding is successful for the third CB received sequence, the method further includes:

if the terminal equipment successfully performs channel decoding on the third CB receiving sequence, triggering and executing the steps of: and the terminal equipment multiplies the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performs exclusive OR calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replaces the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, before the terminal device performs xor calculation on the third system information receiving sequence and the fourth CB decoding result, and generates auxiliary check information of a linear block code, the method further includes:

the terminal equipment judges whether the decoding times of channel decoding the third CB receiving sequence exceed a preset iteration time threshold, and if the decoding times of channel decoding the third CB receiving sequence do not exceed the preset iteration time threshold, the terminal equipment triggers the execution steps of: and the terminal equipment performs exclusive-or calculation on the third system information receiving sequence and the fourth CB decoding result to generate auxiliary check information of the linear block code.

With reference to the second aspect, in a fourth possible implementation manner of the second aspect, after the terminal device performs channel decoding on the third CB received sequence to obtain a third CB decoding result, the method further includes:

the terminal equipment performs Cyclic Redundancy Check (CRC) on the third CB decoding result;

if the result of CRC check on the third CB decoding result is successful, the terminal equipment outputs the third CB decoding result;

and if the result of CRC check on the third CB decoding result is check failure, the terminal equipment discards the third CB decoding result, or the terminal equipment informs the base station to resend the third CB.

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, after the terminal device performs channel decoding on the fourth CB received sequence to obtain a fourth CB decoding result, the method further includes:

the terminal equipment performs CRC on the fourth CB decoding result;

if the result of CRC check on the fourth CB decoding result is successful, the terminal equipment outputs the fourth CB decoding result;

and if the result of CRC check on the fourth CB decoding result is check failure, the terminal equipment discards the fourth CB decoding result, or informs the base station to resend the fifth CB.

With reference to the second aspect, in a sixth possible implementation manner of the second aspect, the receiving, by the terminal device, a third code block CB sent by the base station to obtain a third CB receiving sequence, and receiving, by the terminal device, a fifth CB sent by the base station to obtain a fifth CB receiving sequence includes:

and the terminal equipment demodulates the data of the third CB and the fifth CB sent by the base station, then performs rate matching and interleaving decoding on the demodulated third CB to obtain a third CB receiving sequence, and performs rate matching and interleaving decoding on the demodulated fifth CB to obtain a fifth CB receiving sequence.

In a third aspect, an embodiment of the present invention further provides a base station, including:

a coding module, configured to perform channel coding on the first code block CB to obtain a third CB, where the third CB includes: the first system information, the first path of check information and the second path of check information; performing channel coding on the second CB to obtain a fourth CB, where the fourth CB includes: the base station comprises a first system information, a second system information, a third path of check information and a fourth path of check information, wherein the importance degree of data carried by a third CB is greater than that of data carried by a fourth CB, and the first CB and the second CB are two code blocks obtained by the base station after the base station segments a transmission block;

the check information calculation module is used for multiplying a preset coding matrix by the first system information to generate check information of the linear block code, and the coding matrix and the unit matrix form a generating matrix of the linear block code;

a system information updating module, configured to perform xor calculation on the check information of the linear block code and the second system information to obtain third system information, and replace the second system information included in the fourth CB with the third system information to obtain a fifth CB, where the fifth CB includes: third system information, third path verification information and fourth path verification information;

and the sending module is used for sending the third CB to the terminal equipment and sending the fifth CB to the terminal equipment.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the base station further includes: and the CRC processing module is used for performing Cyclic Redundancy Check (CRC) processing on the first CB before the coding module performs channel coding on the first code block CB to obtain a third CB.

With reference to the third aspect, in a second possible implementation manner of the third aspect, the base station further includes: and the CRC processing module is used for performing CRC processing on the second CB before the coding module performs channel coding on the second CB to obtain a fourth CB.

With reference to the third aspect, in a third possible implementation manner of the third aspect, the base station further includes: and the multilevel processing module is used for performing rate matching and interleaving coding on the third CB before the sending module sends the third CB to a terminal device and sending the fifth CB to the terminal device, performing rate matching and interleaving coding on the fifth CB, and then performing code block cascade and data modulation on the third CB after the interleaving coding and the fifth CB after the interleaving coding are completed.

In a fourth aspect, an embodiment of the present invention further provides a terminal device, including:

a receiving module, configured to receive a third code block CB sent by a base station, to obtain a third CB receiving sequence, where the third CB receiving sequence includes: the system comprises a first system information receiving sequence, a first path check information receiving sequence and a second path check information receiving sequence; receiving a fifth CB sent by the base station to obtain a fifth CB receiving sequence, where the fifth CB receiving sequence includes: a third system information receiving sequence, a third verification information receiving sequence and a fourth verification information receiving sequence;

the decoding module is used for carrying out channel decoding on the third CB receiving sequence after the third CB receiving sequence is obtained, so as to obtain a third CB decoding result;

a system information updating module, configured to multiply the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, perform xor calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, replace the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, where the fourth CB receiving sequence includes: the second system information receiving sequence, the third verification information receiving sequence and the fourth verification information receiving sequence;

the decoding module is further configured to perform channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the terminal device further includes a decoding judgment module, an auxiliary check information calculation module, and a modification module, where,

the decoding judgment module is used for the decoding module to perform channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result and then judging whether the channel decoding on the third CB receiving sequence is successful;

the auxiliary check information calculation module is configured to perform xor calculation on the third system information receiving sequence and the fourth CB decoding result if the decoding module fails to perform channel decoding on the third CB receiving sequence, and generate auxiliary check information of a linear block code;

and the correction module is used for taking the auxiliary check information and the third CB decoding result as the input of a linear block code decoder and acquiring the third CB correction result output by the linear block code decoder.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the decoding determining module is further configured to trigger execution of the system information updating module if the decoding module successfully performs channel decoding on the third CB received sequence.

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the terminal device further includes an iteration judgment module, configured to judge whether a decoding frequency of channel decoding the third CB receiving sequence exceeds a preset iteration frequency threshold before the auxiliary check information of the linear block code is generated by performing xor calculation on the third system information receiving sequence and the fourth CB decoding result by the auxiliary check information calculation module, and trigger execution of the auxiliary check information calculation module if the decoding frequency of channel decoding the third CB receiving sequence does not exceed the preset iteration frequency threshold.

With reference to the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the terminal device further includes a cyclic redundancy check code CRC processing module, configured to perform, by the decoding module, channel decoding on the third CB received sequence to obtain a third CB decoding result, and then perform cyclic redundancy check code CRC checking on the third CB decoding result; if the result of CRC check on the third CB decoding result is successful, outputting the third CB decoding result; and if the result of CRC check on the third CB decoding result is check failure, discarding the third CB decoding result, or informing the base station to resend the third CB by the terminal equipment.

With reference to the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the terminal device further includes a Cyclic Redundancy Check (CRC) processing module, configured to perform, by the decoding module, channel decoding on the fourth CB received sequence to obtain a fourth CB decoding result, and perform CRC checking on the fourth CB decoding result; if the result of CRC check on the fourth CB decoding result is successful, outputting the fourth CB decoding result; and if the result of CRC check on the fourth CB decoding result is check failure, discarding the fourth CB decoding result, or informing the base station to resend the fifth CB by the terminal equipment.

With reference to the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the receiving module is specifically configured to demodulate data of a third CB and a fifth CB sent by the base station, perform rate matching and interleaving decoding on the demodulated third CB to obtain a third CB receiving sequence, and perform rate matching and interleaving decoding on the demodulated fifth CB to obtain a fifth CB receiving sequence.

According to the technical scheme, the embodiment of the invention has the following advantages:

in the embodiment of the invention, because the importance degree of the data carried by the third CB is greater than that of the data carried by the fourth CB, the base station multiplies the preset coding matrix by the first system information, carries the obtained check information of the linear block code in the fourth CB, generates the fifth CB, and increases the correlation between the third CB and the fourth CB in the fifth CB, and after the terminal equipment obtains the fifth CB receiving sequence, the second system information receiving sequence can be recovered through the third system information sequence carried in the fifth CB receiving sequence, so that unequal error protection of the third CB and the fourth CB can be realized, and the third CB carrying the data with higher importance degree can be endowed with stronger error protection under the same network condition, and the transmission quality of the third CB from the transmitting end to the receiving end can be improved.

Drawings

Fig. 1 is a schematic flow chart diagram of a data processing method according to an embodiment of the present invention;

FIG. 2 is a schematic block flow diagram of another data processing method according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of data processing of a physical layer according to an embodiment of the present invention;

FIG. 4-a is a schematic diagram illustrating an implementation manner of Turbo coding a code block according to an embodiment of the present invention;

fig. 4-b is a schematic diagram illustrating a processing manner of performing code block segmentation on a transport block according to an embodiment of the present invention;

fig. 4-c is a schematic diagram of an implementation manner of providing a code block encoding process at the base station side according to an embodiment of the present invention;

fig. 4-d is a schematic diagram illustrating an implementation manner of decoding processing of code blocks at a terminal device side according to an embodiment of the present invention;

fig. 4-e is a schematic diagram of a decoding process flow of a code block at a terminal device side according to an embodiment of the present invention;

fig. 5-a is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 5-b is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 5-c is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 6-a is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6-b is a schematic structural diagram of another terminal device according to an embodiment of the present invention;

fig. 6-c is a schematic structural diagram of another terminal device according to an embodiment of the present invention;

fig. 6-d is a schematic structural diagram of another terminal device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another terminal device according to an embodiment of the present invention.

Detailed Description

The embodiment of the invention provides a data processing method, a base station and terminal equipment, which are used for enhancing the protection degree of data with high importance and improving the quality of the data with high importance received by a receiving end.

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one skilled in the art from the embodiments given herein are intended to be within the scope of the invention.

The terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the invention in its embodiments for distinguishing between objects of the same nature. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The terminal devices involved in the present invention may include handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, which have wireless communication functions, as well as various forms of User Equipment (UE), Mobile Stations (MS), terminals (terminal), and the like. For convenience of description, the following embodiments of the present invention are collectively referred to as a terminal device.

The following are detailed below.

Referring to fig. 1, an embodiment of a data processing method according to the present invention may be applied to a channel coding process of data, and the data processing method according to the embodiment of the present invention may include the following steps:

101. the base station performs channel coding on a first Code Block (CB) to obtain a third CB, where the third CB includes: the first system information, the first path of check information and the second path of check information.

102. The base station performs channel coding on the second CB to obtain a fourth CB, and the fourth CB comprises: the second system information, the third path of verification information and the fourth path of verification information.

The importance degree of the data carried by the third CB is greater than that of the data carried by the fourth CB, and the first CB and the second CB are two code blocks obtained by segmenting a Transport Block (TB) by the base station.

In the embodiment of the present invention, the present invention relates to a data processing procedure in a Physical Downlink Shared Channel (PDSCH) of a Physical layer at a base station side, where a transport block may be a MAC PDU. The transmission block is segmented into two code blocks which are respectively defined as a first CB and a second CB, and the importance degree of the data carried by the first CB is greater than that of the data carried by the second CB. The importance of the data can be represented by the content of the data itself. For example, taking SVC as an example for encoding a video sequence, a first CB and a second CB are obtained after the video sequence is encoded, where the first CB includes BL data and the second CB includes EL data, and since decoding of an EL must depend on decoding of a BL, decoding errors of the BL may affect decoding of the EL, the data of the BL is more important than the data of the EL. As another example, a two-dimensional image may be decomposed into different frequency components. The low-frequency component can be used for describing a large range of information, the high-frequency component can be used for describing specific image details, the data carried by the first CB can be the low-frequency component, the data of the second CB is the high-frequency component, and the importance degree of the low-frequency component is greater than that of the high-frequency component. For another example, in a grayscale image, a region with small luminance variation is mainly a low-frequency component, and a region with strong luminance variation (such as an edge of an object) is mainly a high-frequency component, and the data carried by the first CB may be the low-frequency component, and the data carried by the second CB is the high-frequency component, and the low-frequency component is more important than the high-frequency component. In addition, the importance degree of the data may be represented by a specific identifier carried in the code block, for example, the importance degree of the data carried by the first CB may be determined by the importance identifier carried in the first CB, the importance degree of the data carried by the second CB may be determined by the importance identifier carried in the second CB, specifically, different data are respectively carried in the first CB and the second CB, and if the importance degree of the data carried by the first CB is greater than the importance degree of the data carried by the second CB, the difference of the importance degrees may be indicated by an identifier in which the importance identifier carried in the first CB is different from the importance identifier carried in the second CB.

Optionally, in the embodiment of the present invention, based on that the importance degree of the data carried by the first CB is greater than that of the data carried by the second CB, Unequal Error Protection (UEP) may be adopted for the first CB and the second CB in the embodiment of the present invention, and the first CB with the higher importance degree of the data carried by the first CB may be protected by the UEP and correctly decoded by the receiving end (i.e., the terminal device).

In the embodiment of the present invention, a base station may obtain two code blocks, namely, a first CB and a second CB, after segmenting a transport block by the code block, and then perform channel coding on the two code blocks (that is, the first CB and the second CB), respectively, where the base station performs channel coding on the first CB to obtain a third CB, and the base station performs channel coding on the second CB to obtain a fourth CB, and if the importance degree of data carried by the first CB is greater than the importance degree of data carried by the second CB, the importance degrees of the two code blocks are not changed after the channel coding, so that the importance degree of data carried by the third CB is greater than the importance degree of data carried by the fourth CB. For example, taking SVC coding of a video sequence as an example, the third CB includes: data of the BL, and the fourth CB includes: data of EL. For another example, taking encoding of a two-dimensional image as an example, data carried by the third CB may be a low-frequency component, and data carried by the fourth CB may be a high-frequency component.

It should be noted that, in the embodiment of the present invention, the base station may perform channel coding on the code blocks in multiple ways, for example, as follows, the base station may use Turbo (Turbo) coding, the base station may also use convolutional coding or hamming coding, and specifically, which coding mode is used by the base station.

In some embodiments of the present invention, the first CB, which is an original code block sequence, may be subjected to Turbo coding, and then generate a third CB, where the third CB includes system information and check information, and specifically, the third CB includes: the first system information, the first path of check information, and the second path of check information, where the second CB is an original code block sequence, and may be subjected to Turbo coding, and then may generate a fourth CB, where the fourth CB includes the system information and the check information, and specifically, the fourth CB includes: the second system information, the third path of verification information and the fourth path of verification information.

It should be noted that, in the embodiment of the present invention, the base station uses Turbo coding as an example for channel coding, the Turbo coding for the first CB and the Turbo coding for the second CB are performed independently by the base station, and there is no time sequence or logical sequence between the Turbo coding and the Turbo coding, but without limitation, the base station may also use convolutional coding and hamming coding to code the code block, as long as the following conditions are satisfied: the channel coding method has the characteristics of system codes, and the system information and the check information of the coded code words are not crossed and can be used for channel coding of code blocks in the embodiment of the invention.

In some embodiments of the present invention, before the base station performs channel coding on the first CB in step 101 to obtain the third CB, the data processing method provided in the embodiments of the present invention may further include the following steps:

a1, the base station performs Cyclic Redundancy Check (CRC) processing on the first CB.

Similarly, before the base station performs channel coding on the second CB in step 102 to obtain the fourth CB, the data processing method provided in the embodiment of the present invention may further include the following steps:

and A2, the base station performs CRC processing on the second CB.

That is to say, in the embodiment of the present invention, before the base station performs channel coding on the code block, the base station may further perform CRC processing on the code block, where CRC is a most commonly used error check code in the field of data communication, and is characterized in that lengths of an information field and a check field may be arbitrarily selected, and CRC may implement a data transmission error detection function, perform polynomial calculation on data, and attach an obtained result to the back of the code block, so as to ensure correctness and integrity of data transmission, and a specific CRC processing process may refer to the prior art.

It should be noted that, in some embodiments of the present invention, before the base station performs code block segmentation on the transport block to obtain the first CB and the second CB, the base station may also perform CRC processing on the transport block, and add CRC check bits to the transport block, where the specific CRC processing process may refer to the prior art.

103. And the base station multiplies a preset coding matrix and the first system information to generate check information of the linear block code, wherein the coding matrix and the identity matrix form a generating matrix of the linear block code.

In the embodiment of the present invention, after obtaining the third CB and the fourth CB, the base station performs step 103, and after obtaining the check information of the linear block code, performs step 104.

104. The base station carries out XOR calculation on the check information of the linear block code and the second system information to obtain third system information, the second system information included by the fourth CB is replaced by the third system information to obtain a fifth CB, and the fifth CB comprises: third system information, third path verification information and fourth path verification information.

In the embodiment of the present invention, after the base station performs channel coding on the first CB and the second CB respectively, the base station may obtain a third CB and a fourth CB, where the third CB includes the first system information, the fourth CB includes the second system information, the base station then performs multiplication calculation using a preset coding matrix and the first system information to obtain check information of the linear block code, the base station performs xor calculation on the check information of the linear block code and the second system information to obtain third system information, the base station then replaces the second system information included in the fourth CB with the third system information to obtain a fifth CB, the base station includes the third system information in the fifth CB, and the third system information is obtained by performing xor calculation on the check information of the linear block code and the second system information, and it can be known from the foregoing step 103 that the check information of the linear block code is a result of multiplying the preset coding matrix and the first system information, therefore, after the base station performs step 103 and step 104, the base station adds correlation between the third CB and the fourth CB in the fifth CB, wherein the third system information included in the fifth CB may indicate a degree of correlation between the third CB and the fourth CB. In the embodiment of the present invention, the base station may adopt a preset coding matrix for performing correlation calculation on the third CB and the fourth CB, where the preset coding matrix may be a coding matrix used in multiple coding methods, for example, the preset coding matrix may be a coding matrix used in a coding method using a linear block code, and the preset coding matrix may also use a coding matrix used in a coding method using other linear codes, for example, a coding matrix using a cyclic code or a hamming code, as the preset coding matrix.

In the embodiment of the present invention, the third system information included in the fifth CB may indicate a correlation introduced between the third CB and the fourth CB, and the third system information may be used by a receiving end (i.e., a terminal device) to perform channel decoding on a code block, so as to improve a success rate of decoding the third CB.

In the embodiment of the present invention, the preset coding matrix is a coding matrix of a linear block code, the coding matrix and the identity matrix form a generating matrix of the linear block code, the identity matrix is a square matrix in which elements on a main diagonal line from an upper left corner to a lower right corner are all 1 and all other elements are 0, the system information included in the third CB is first system information, the base station multiplies the coding matrix and the first system information to generate check information of the linear block code, then the base station performs an exclusive-or calculation on the check information of the linear block code and the second system information to obtain third system information, the third system information is carried in the fifth CB, that is, the base station calculates third system information used for representing a correlation between the third CB and the fourth CB and then carries the third system information through the fifth CB, since the third CB has a higher importance than the fourth CB, therefore, the third system information can be carried by the fifth CB without affecting the third CB obtained by the base station, and the third system information carried in the fifth CB can be used for the receiving end to decode the channel of the third CB, so that the decoding success rate of the third CB can be improved.

105. And the base station sends the third CB to the terminal equipment, and the base station sends the fifth CB to the UE.

In the embodiment of the present invention, after the base station calculates the third system information indicating the correlation between the third CB and the fourth CB in steps 103 and 104, the third system information is carried by the fifth CB, and then the base station transmits the third CB to the terminal device and transmits the fifth CB to the terminal device. The base station sends the third CB to the terminal device, and sends the fifth CB to be transmitted through a bottom-layer physical link between the base station and the terminal device, and the specific transmission process of the third CB and the fifth CB may refer to the prior art, which is not described in detail in the embodiment of the present invention.

In some embodiments of the present invention, before the step 103 of sending the third CB to the terminal device by the base station, and sending the fifth CB to the UE by the base station, the data processing method provided in the embodiments of the present invention may further include the following steps:

and B1, the base station performs rate matching and interleaving coding on the third CB, the base station performs rate matching and interleaving coding on the fifth CB, and then performs code block cascade and data modulation on the third CB after the interleaving coding and the fifth CB after the interleaving coding.

That is to say, in the embodiment of the present invention, after the base station acquires the third CB and the fifth CB, the base station may further perform rate matching and interleaving coding on the third CB, perform rate matching and interleaving coding on the fifth CB, then perform code block concatenation and data modulation on the third CB after completing the interleaving coding and the fifth CB after completing the interleaving coding, and after the base station completes the above multi-stage processing, the base station sends the third CB to the terminal device and sends the fifth CB to the terminal device. Wherein, the rate matching means that the bits on the transmission channel are retransmitted or punctured to match the carrying capacity of the physical channel, and the bit rate required by the transmission format is achieved during channel mapping. Interleaving coding is a communication technique for improving mobile communication signal fading in the actual mobile communication environment, which will cause burst errors in digital signal transmission, and the burst errors can be dispersed and corrected by using the interleaving coding technique, thereby improving the transmission characteristics of mobile communication. The code block concatenation is to output the third CB and the fifth CB after sequentially concatenating the third CB and the fifth CB. Data modulation is a technique of converting a baseband signal into a transmission signal.

As can be seen from the above description of the embodiment of the present invention, first, a base station performs channel coding on a first CB and a second CB obtained after a transport block is segmented by a code block, to obtain a third CB and a fourth CB, where an importance degree of data carried by the third CB is greater than an importance degree of data carried by the fourth CB, the third CB includes first system information, first path check information, and second path check information, and the fourth CB includes: the base station multiplies a preset coding matrix and the first system information to generate check information of the linear block code, the coding matrix and the unit matrix form a generating matrix of the linear block code, the base station carries out XOR calculation on the check information of the linear block code and the second system information to obtain third system information, the second system information included by the fourth CB is replaced by the third system information to obtain a fifth CB, and the fifth CB comprises: and the base station sends a third CB to the terminal equipment, and the base station sends a fifth CB to the UE. Because the importance degree of the data carried by the third CB is greater than that of the data carried by the fourth CB, the base station multiplies the preset coding matrix by the first system information, carries the obtained check information of the linear block code in the fourth CB, generates the fifth CB, and increases the correlation between the third CB and the fourth CB in the fifth CB, and after the terminal device obtains the fifth CB receiving sequence, the second system information receiving sequence can be recovered through the third system information sequence carried in the fifth CB receiving sequence, so that unequal error protection of the third CB and the fourth CB can be realized, and the third CB carrying the data with higher importance degree can be endowed with stronger error protection under the same network condition, and the transmission quality of the third CB from the transmitting end to the receiving end can be improved.

In the foregoing embodiment, the data processing method provided in the embodiment of the present invention is described from the base station side, and next, the data processing method provided in the embodiment of the present invention is described from the terminal device side, please refer to fig. 2, where the data processing method provided in the embodiment of the present invention may include the following steps:

201. the terminal equipment receives a third CB sent by the base station to obtain a third CB receiving sequence, wherein the third CB receiving sequence comprises: the system comprises a first system information receiving sequence, a first path check information receiving sequence and a second path check information receiving sequence.

202. The terminal equipment receives a fifth CB sent by the base station to obtain a fifth CB receiving sequence, wherein the fifth CB receiving sequence comprises: a third system information receiving sequence, a third verification information receiving sequence and a fourth verification information receiving sequence.

In the embodiment of the present invention, a base station sends a third CB and a fifth CB to a terminal device through a physical link between the base station and the terminal device, and then the terminal device receives the third CB and the fifth CB sent by the base station, and the terminal device may obtain a third CB receiving sequence and a fifth CB receiving sequence.

It should be noted that, as can be seen from the foregoing embodiment, the importance degree of the data carried by the third CB is greater than that of the data carried by the fourth CB, so that for the terminal device side, the importance degree of the data carried by the third CB receiving sequence is greater than that of the data carried by the fifth CB receiving sequence.

In some embodiments of the present invention, step 201 in which the terminal device receives a third code block CB sent by the base station to obtain a third CB receiving sequence, and step 202 in which the terminal device receives a fifth CB sent by the base station to obtain a fifth CB receiving sequence may specifically include the following steps:

That is to say, in the embodiment of the present invention, when receiving, by a terminal device, a data stream sent by a base station through a bottom-layer physical link, where the data stream includes a third CB and a fifth CB sent by the base station, the terminal device first performs data demodulation on the third CB and the fifth CB sent by the base station, then separates different code block streams, performs rate matching and interleaving decoding on the demodulated third CB by the terminal device to obtain a third CB receiving sequence, and performs rate matching and interleaving decoding on the demodulated fifth CB by the terminal device to obtain a fifth CB receiving sequence. If the base station side performs rate matching, interleaving coding, code block cascading and data modulation on the third CB and the fifth CB. The terminal equipment side also needs the third CB and the fifth CB to perform multi-stage processing opposite to that of the base station side, and specific processing procedures can refer to the prior art.

203. And after the terminal equipment obtains the third CB receiving sequence, the terminal equipment performs channel decoding on the third CB receiving sequence to obtain a third CB decoding result.

In this embodiment of the present invention, after the terminal device obtains the third CB receiving sequence in step 201, the terminal device performs step 203 to perform channel decoding on the third CB receiving sequence to obtain a third CB decoding result, it should be noted that the channel decoding performed at the terminal device side is two channel processing processes opposite to the channel coding performed at the base station side in the foregoing embodiment, therefore, what channel coding method is used at the base station side, and a corresponding channel decoding method needs to be used at the terminal device side, for example, the base station uses Turbo coding for the channel coding of the code block, the terminal device needs to use Turbo decoding for the channel decoding of the code block, and if the base station uses convolutional coding or hamming coding, the terminal device needs to use convolutional decoding or hamming decoding to complete the channel decoding of the third CB. The specific decoding mode adopted by the terminal device may not be specifically limited in the embodiment of the present invention, and which channel decoding mode is adopted may be determined according to a specific application scenario, and the specific selection of the channel decoding mode does not limit the unequal error protection implemented on different code blocks in the embodiment of the present invention.

204. The terminal equipment multiplies the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performs exclusive OR calculation on the system information recovery sequence and a third system information receiving sequence to obtain a second system information receiving sequence, replaces the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, and the fourth CB receiving sequence includes: the system comprises a second system information receiving sequence, a third checking information receiving sequence and a fourth checking information receiving sequence.

In the embodiment of the present invention, the fifth CB receiving sequence includes third system information carried by the base station in the fifth CB, so that the third system information receiving sequence obtained by the terminal device side may also be used to represent a correlation between the third CB and the fourth CB, after the terminal device obtains the third CB decoding result, the terminal device may multiply the third CB decoding result by a coding matrix preset by the terminal device side to obtain a system information recovery sequence, where the coding matrix preset by the terminal device side is a coding matrix completely identical to the coding matrix used by the base station side, and therefore, by multiplying the third CB decoding result by the coding matrix, a system information recovery sequence may be obtained, where the system information recovery sequence is used to recover the third system information receiving sequence in the fifth CB receiving sequence, and perform an exclusive or calculation on the system information recovery sequence and the third system information receiving sequence, obtaining a second system information receiving sequence, and replacing a third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence, so that the terminal device can obtain a fourth CB receiving sequence, where the fourth CB receiving sequence includes: the system comprises a second system information receiving sequence, a third checking information receiving sequence and a fourth checking information receiving sequence.

It should be noted that, the base station side multiplies the preset coding matrix by the first system information to generate the check information of the linear block code, and then the terminal device needs to use the same coding matrix to complete channel decoding when performing channel decoding on the fifth CB received sequence. In the embodiment of the present invention, the decoding result of the third CB is a decoding result of the third CB sent by the terminal device to the base station, in the embodiment of the present invention, the base station side independently sends the third CB, but does not independently send the fourth CB, but replaces the second system information in the fourth CB with the third system information, so as to obtain a fifth CB, and the base station side sends the fifth CB. The terminal equipment side independently performs channel decoding on the third CB receiving sequence, so that the third CB decoding result calculated by the terminal equipment is not influenced by errors generated in the transmission process of the fifth CB. Since the fifth CB carries third system information for indicating a correlation between the third CB and the fourth CB, the third system information receiving sequence in the fifth CB receiving sequence obtained by the terminal device may also be used to correct an error generated in the transmission process of the third CB, which is described in detail in the following embodiments.

Because the importance degree of the data carried by the fourth CB is not higher than that of the data carried by the third CB, even if the transmission error of the third CB affects the reception of the fifth CB, the error effect is relatively small, and therefore, in the embodiment of the present invention, only the third system information that can represent the correlation between the third CB and the fourth CB is carried in the fifth CB, and the correlation between the third CB and the fourth CB is not increased in the third CB, so that unequal error protection of the third CB and the fourth CB can be implemented.

205. And the terminal equipment performs channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result.

In this embodiment of the present invention, after the terminal device obtains the fourth CB receiving sequence through the foregoing step 204, the terminal device executes step 205 to perform channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result, it should be noted that the channel decoding executed on the terminal device side is two channel processing procedures opposite to the channel coding executed on the base station side in the foregoing embodiment, and therefore, what channel coding method is adopted on the base station side, and a corresponding channel decoding method needs to be adopted on the terminal device side. For example, the base station uses Turbo coding for channel coding of the code block, the terminal device needs to use Turbo decoding for channel decoding of the code block, and if the base station uses convolutional coding or hamming coding, the terminal device needs to use convolutional decoding or hamming decoding to complete channel decoding of the third CB. The specific decoding mode adopted by the terminal device may not be specifically limited in the embodiment of the present invention, and which channel decoding mode is adopted may be determined according to a specific application scenario, and the specific selection of the channel decoding mode does not limit the unequal error protection implemented on different code blocks in the embodiment of the present invention.

In some embodiments of the present invention, after the terminal device performs channel decoding on the fourth CB received sequence in step 205 to obtain a fourth CB decoding result, the data processing method provided in the embodiments of the present invention may further include the following steps:

f1, the terminal equipment performs CRC check on the fourth CB decoding result;

f2, if the result of CRC check of the fourth CB decoding result is successful, the terminal equipment outputs the fourth CB decoding result;

and F3, if the result of CRC check on the fourth CB decoding result is check failure, the terminal equipment discards the fourth CB decoding result, or the terminal equipment informs the base station to resend the fifth CB.

In the embodiment of the present invention, after the terminal device obtains the fourth CB decoding result through step 205, the terminal device may perform CRC check on the fourth CB decoding result, if the CRC check is successful, the terminal device may output the fourth CB decoding result, and if the result of performing CRC check on the fourth CB decoding result is a check failure, it indicates that a transmission error occurs in the process of transmitting the fourth CB by the base station, the terminal device cannot correctly decode the fourth CB receiving sequence, and the terminal device may choose to discard the fourth CB decoding result, and may also notify the base station side to resend the fifth CB.

In some embodiments of the present invention, after the terminal device performs channel decoding on the fourth CB received sequence in step 205 to obtain a fourth CB decoding result, the data processing method provided in this embodiment of the present invention may further include the following steps:

c1, the terminal equipment judges whether the channel decoding of the third CB receiving sequence is successful;

c2, if the terminal equipment fails to decode the third CB receiving sequence, the terminal equipment performs XOR calculation on the third system information receiving sequence and the fourth CB decoding result to generate the auxiliary check information of the linear block code;

and C3, the terminal equipment takes the auxiliary verification information and the third CB decoding result as the input of the linear block code decoder, and obtains the third CB correction result output by the linear block code decoder.

In this embodiment of the present invention, after the terminal device performs channel decoding on the third CB receiving sequence in step 203 to obtain a third CB decoding result, the terminal device may determine whether the channel decoding of the third CB receiving sequence is successful, for example, the terminal device may determine whether the decoding of the third CB receiving sequence is successful in a CRC check manner, and directly output the third CB decoding result if the decoding of the third CB receiving sequence is successful. If the terminal device fails to perform channel decoding on the third CB receiving sequence, step C2 is executed, the fifth CB receiving sequence received by the terminal device includes a third system information receiving sequence, the third system information receiving sequence can be used to correct the third CB decoding result, the terminal device performs xor calculation on the third system information receiving sequence and the fourth CB decoding result to generate auxiliary check information of the linear block code, and the terminal device further uses the auxiliary check information and the third CB decoding result as the input of the linear block code decoder to obtain the third CB correction result output by the linear block code decoder, so that the supervision matrix of the linear block code decoder is the supervision matrix corresponding to the generating matrix of the linear block code, and thus the correction of the third CB decoding result can be realized by the linear block code decoder to obtain the third CB correction result, the third CB correction result is more consistent with the third CB sent by the base station side. The process of modifying the decoding result of the third CB by the linear block code decoder can be referred to in the prior art.

In this embodiment of the present invention, after the terminal device obtains the third CB decoding result, the terminal device may determine whether the channel decoding performed on the third CB receiving sequence is successful, and if the result of the channel decoding performed on the third CB receiving sequence by the terminal device is that the decoding is successful, it indicates that no error occurs in the third CB sent by the base station in the transmission process, so that the third CB decoding result does not need to be corrected, and the third CB decoding result may be directly output without performing step C2 and step C3. If the decoding result of the third CB decoding result is decoding failure, it indicates that the third CB sent by the base station has an error in the transmission process, and therefore the terminal device side needs to correct the decoding result of the third CB again to improve the success rate of receiving the third CB by the terminal device, and in this case, the step C2 and the step C3 may be triggered to be executed.

It should be noted that, in the embodiment of the present invention, after the terminal device obtains the fourth CB decoding result, the terminal device may further correct the third CB decoding result according to the third system information receiving sequence and the fourth CB decoding result included in the fifth CB receiving sequence, so as to obtain the third CB correction result. Because the third system information receiving sequence and the fourth CB decoding result included in the fifth CB receiving sequence can also be used for correcting the third CB decoding result, the third CB sent by the base station has an error correction capability, and the terminal device can correct an error generated in the process of sending the third CB by the base station, so that the obtained third CB correction result can be close to the third CB sent by the base station side, so that the third CB with a higher importance degree can be correctly transmitted, and unequal error protection of the third CB and the fourth CB is realized.

In some embodiments of the present invention, after the terminal device in the step C1 determines whether channel decoding is successful for the third CB receiving sequence, the data processing method provided in the embodiments of the present invention may further include the following steps:

if the terminal device successfully performs channel decoding on the third CB receiving sequence, triggering to execute step 204: and the terminal equipment multiplies the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performs exclusive OR calculation on the system information recovery sequence and a third system information receiving sequence to obtain a second system information receiving sequence, and replaces the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence.

Further, in some embodiments of the present invention, before the terminal device performs xor calculation on the third system information receiving sequence and the fourth CB decoding result in step C2 to generate the auxiliary check information of the linear block code, the data processing method provided in the embodiments of the present invention may further include the following steps:

d1, the terminal equipment judges whether the decoding times of channel decoding the third CB receiving sequence exceeds a preset iteration time threshold, if the decoding times of channel decoding the third CB receiving sequence does not exceed the preset iteration time threshold, the execution of the step C2 is triggered: and the terminal equipment performs exclusive OR calculation on the third system information receiving sequence and the fourth CB decoding result to generate auxiliary check information of the linear block code.

In order to implement decoding control of channel decoding on the third CB received sequence, the terminal device may set an iteration threshold in advance, before performing step C2 and step C3 each time, step E1 is performed first, and it is determined whether the decoding frequency of the channel decoding that has been performed exceeds the iteration threshold, if not, step C2 and step C3 may be performed, and if the preset iteration threshold is exceeded, decoding may be ended without performing steps C2 and C3, and through the implementation manner of step D1, the terminal device side may implement process control of channel decoding, so as to avoid performing channel decoding on the third CB received sequence for an infinite number of times due to a transmission error of a code block in the transmission process, and save resources of the decoder.

In some embodiments of the present invention, after the terminal device performs channel decoding on the third CB received sequence in step 203 to obtain a third CB decoding result, the data processing method provided in the embodiments of the present invention may further include the following steps:

e1, the terminal equipment performs CRC on the third CB decoding result;

e2, if the CRC check result of the third CB decoding result is successful, the terminal equipment outputs the third CB decoding result;

and E3, if the result of CRC check on the third CB decoding result is check failure, the terminal equipment discards the third CB decoding result, or the terminal equipment informs the base station to resend the third CB.

In the embodiment of the present invention, after the terminal device obtains the third CB decoding result through step 203, the terminal device may perform CRC check on the third CB decoding result, if the CRC check is successful, the third CB decoding result may be output, and if the result of performing CRC check on the third CB decoding result is a check failure, it indicates that a transmission error occurs in the process of transmitting the third CB by the base station, the terminal device cannot correctly decode the third CB receiving sequence, and the terminal device may choose to discard the third CB decoding result, and may also notify the base station side to resend the third CB.

As can be seen from the above description of the embodiments of the present invention, a terminal device, as a receiving end, first receives a third CB sent by a base station to obtain a third CB receiving sequence, and receives a fifth CB sent by the base station to obtain a fifth CB receiving sequence, where the third CB receiving sequence includes: the first system information receiving sequence, the first path checking information receiving sequence, the second path checking information receiving sequence and the fifth CB receiving sequence comprise: the third system information receiving sequence, the third verification information receiving sequence and the fourth verification information receiving sequence, after the terminal device obtains the third CB receiving sequence, the terminal device performs channel decoding on the third CB receiving sequence to obtain a third CB decoding result, the terminal device multiplies the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performs exclusive or calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replaces the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, wherein the fourth CB receiving sequence comprises: and the terminal equipment performs channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result. Because the importance degree of the data carried by the third CB is greater than that of the data carried by the fourth CB, the base station multiplies the preset coding matrix by the first system information, carries the obtained check information of the linear block code in the fourth CB, generates the fifth CB, and increases the correlation between the third CB and the fourth CB in the fifth CB, and after the terminal device obtains the fifth CB receiving sequence, the second system information receiving sequence can be recovered through the third system information sequence carried in the fifth CB receiving sequence, so that unequal error protection of the third CB and the fourth CB can be realized, and under the same network condition, the third CB carrying the data with higher importance degree can be endowed with stronger error protection, and the transmission quality of the third CB from the transmitting end to the receiving end can be improved.

The foregoing embodiment describes the data processing method provided in the embodiment of the present invention from a base station side and a terminal device side, and then introduces the data processing method implemented by the communication system provided in the embodiment of the present invention, where the communication system may include: a base station and a terminal device, where the base station performs the data processing method shown in fig. 1, the terminal device performs the data processing method shown in fig. 2, and the data processing method performed by the communication system may include the data processing method performed by the base station and the data processing method performed by the terminal device, which are described in detail in the foregoing embodiments and are not described herein again.

In order to better understand and implement the above-mentioned schemes of the embodiments of the present invention, the following description specifically illustrates corresponding application scenarios.

The embodiment of the invention ensures that other parameter indexes of the existing network are not influenced by any influence and purposefully realizes the UEP processing of the video service data by adding a new data processing process in a channel coding and decoding module aiming at the layered characteristics of the video service on the basis of keeping the original LTE network architecture and data processing flow. Based on the characteristics that the video service needs to be layered and the importance degrees of the layers are different, the embodiment of the invention realizes the UEP of the data layers with different importance degrees of the video service based on an Inter-Layer (IL) mode on the basis of the traditional LTE network physical Layer architecture (taking Turbo channel coding adopted by PDSCH as an example).

Fig. 3 is a schematic flow chart of data processing of a physical layer according to an embodiment of the present invention. Taking the coding and decoding processing of video data as an example for detailed description, the embodiment of the invention distinguishes the video data content in MAC PDU generated by multiplexing in TTI based on the physical layer PDSCH data processing mechanism realized by the base station side in the current LTE network, after segmenting the code block of the transmission block, according to the different layers of the video data to which each code block belongs, adds a pre-coding module on the basis of the Turbo channel coding module of the current physical layer to increase the specific correlation among the original independently processed code blocks, and simultaneously adds a linear block code decoder on the peer decoding module at the receiving end correspondingly to combine with the original Turbo decoder to improve the decoding success rate of carrying high importance video data (such as BL) and realize the UEP of different code blocks, the end-to-end transmission reliability of the video service is improved on the premise that the current available wireless resources and the channel state are fixed.

In the embodiment of the invention, the base station processes one or more transmission blocks in each TTI, as shown in figure 3, the transmission block is firstly subjected to CRC processing and added with CRC check bits, then code block segmentation is carried out, and each code block is subjected to CRC processing again, then Turbo channel coding is independently carried out on each code block, then the code blocks enter a precoding module for processing, finally the code blocks are issued for processing such as rate matching, interleaving coding, code block cascade, data modulation and the like, the transmission blocks are used as terminal equipment of a receiving end, a linear block code decoder and a Turbo decoder in a decoding module carry out Turbo decoding on each code block, then code block segmentation and CRC processing are carried out, and finally the transmission blocks are output after CRC check. Because the coding end adds a pre-coding module in the Turbo channel coding module for processing the current physical layer data, correspondingly, a decoding end can combine the pre-coding processing mode of the coding end, on the basis of the original Turbo decoder, a system linear block code decoder corresponding to pre-coding is introduced, and BL information with a certain error rate output by Turbo decoding is subjected to secondary decoding error correction by using BL information superposed on EL, so that the decoding success rate of BL data of video service is improved.

The embodiment of the invention is different from the prior art in that each code block in a processing module of channel coding and decoding is independently carried out, a pre-coding module is added after the code block at a coding end is subjected to independent Turbo coding, and a bit sequence generated after BL system information is subjected to pre-coding is superposed on EL system information, so that the correlation among the code blocks is introduced. And the decoding end adds a linear block code decoder by utilizing the correlation among the code blocks introduced by the pre-coding module, and performs interactive iterative decoding on each code block with the original Turbo decoder to realize UEP (unified extensible protocol) of different layer data of the video service.

Next, a detailed description will be given of a Turbo channel coding process at the base station side in LTE, where the channel coding at the base station side adopts the Turbo coding structure shown in fig. 4-a, and "D" in fig. 4-a denotes a shift register, and the coding is independently coded by using CB as a unit Code length, and includes a Parallel Concatenated Convolutional Code (PCCC) including 2 8-state sub-encoders and a Turbo Code interleaver. After each input code block is independently coded, the following three paths of parallel data are output, and then subsequent interleaving and other processing are performed, wherein the three paths of parallel data specifically include:

1) code block original sequence c_kDirect output is Turbo system information x_k。

2) Sequence c_kThe first path of check information z is output after being coded by a first component coder_k。

3) Sequence c_kAfter passing through a Turbo code interleaver, the Turbo code interleaver outputs second path check information z 'through a second component encoder'_k。

In the embodiment of the invention, the service characteristics with layering importance degree, such as BL/EL, of video service data can be effectively utilized, so that the end-to-end transmission performance of the video service is improved.

Firstly, a PDSCH data processing procedure of a physical layer is explained from a base station side, MAC multiplexing in a current TTI may form a MAC PDU (i.e. TB), as shown in fig. 4-b, which is a schematic diagram of a processing method for performing code block segmentation on a transport block according to an embodiment of the present invention, after the code block segmentation, a total of two code blocks are included, namely, a first CB (i.e. CB1) and a second CB (i.e. CB2), where the code block CB1 includes data of a BL layer of a video service, and the code block CB2 includes data of an EL layer of the video service, so the importance of CB1 is higher than that of CB2, and the CB1 needs to be protected by UEP processing.

After the two code blocks are obtained, CRC processing is firstly carried out respectively according to the original mechanism, CRC check information is added, and then channel coding is carried out on the two code blocks respectively. The existing processing method is that two code blocks independently perform Turbo coding and output to the next processing module. In the embodiment of the present invention, as shown in fig. 4-c, a schematic diagram of an implementation manner of a coding process of a base station side on a code block is provided for the embodiment of the present invention, in the embodiment of the present invention, a precoding module is added, and a correlation between two code blocks is increased through modulo two superposition after precoding, that is, a correlation between different layers of a video is increased in channel coding, so that an Inter-Layer Forward Error Correction (IL-FEC) can be implemented. Specifically, the base station performs the following steps:

s01: the bit sequences of the code blocks CB1 and CB2 are respectively Turbo coded to obtain a third CB and a fourth CB, wherein the third CB comprises: the first system information, the first path of check information and the second path of check information are obtained, and the fourth CB includes: the second system information, the third path of verification information and the fourth path of verification information. In FIG. 4-c, data for CB1 is x_bThe first system information is the data x of the second way check information CB2_eThe second system information is third path check information and the fourth system information is fourth path check information, so that the third CB and the fourth CB respectively comprise the three paths of information, the CB1 comprises the one path of system information, and the two paths of check information are respectively CB2 comprising the system information and the check information

S02: the system information of CB1 generates auxiliary information P through a pre-coding module_b. A generator matrix G of a systematic linear block code can be split into two parts G [ I | Q ]]Wherein, I is a unit matrix, system information which is not changed with the input information is directly generated, and the check information of the linear block code encoder is obtained by multiplying the coding matrix Q and the input information. The system information of the coding matrix Q and the CB1 of the precoding module in the embodiment of the present invention satisfy the following relationship:

wherein the coding matrix Q has a size of [ n ]_a,n_b]；n_aIs the length of the CB1 bit sequence, n_bFor a length of CB2 bit sequence, I is n_aOrder unit matrix

S03: replacing the second system information of the CB2 with the third system information results in a fifth CB:

therefore, in the final output, the CB1 keeps the original three outputs unchanged, the second system information of the CB2 is replaced by the third system information, and the two-way check information output keeps unchanged.

After the code blocks are processed by the IL-FEC, the 3 paths of parallel data streams formed by each code block continue to operate according to the processing mechanism of the original PDSCH.

In the above fig. 4-c, Turbo coding and precoding are introduced from the transmitting end, and then Turbo decoding and precoding are introduced from the receiving end, as shown in fig. 4-d, an implementation manner of decoding processing of a terminal device side to a code block is provided for the embodiment of the present invention, as shown in fig. 4-e, a decoding processing flow diagram of a terminal device side to a code block is provided for the embodiment of the present invention, and before a data stream reaches a channel decoding module that is equivalent to the channel coding module at the receiving end UE side, a corresponding code block that may contain a certain bit error is obtained, where the code block contains information of each code word of three parallel data substreams. As shown in fig. 4-d, on the basis of the original independent Turbo decoding of each code block, the embodiment of the present invention combines the coding improvement made by the sending end, and performs interactive iterative decoding at the receiving end by introducing a linear block code decoder and combining the original Turbo decoder, and the specific decoding process is as follows:

s11: the terminal device receives a third CB and a fifth CB sent by the base station, and the terminal device acquires a third CB receiving sequence and a fifth CB receiving sequence, wherein the third CB receiving sequence comprises: the first system information receiving sequence, the first path checking information receiving sequence and the second path checking information receiving sequence, and the fifth CB receiving sequence includes: a third system information receiving sequence, a third verification information receiving sequence and a fourth verification information receiving sequence. The first system information receiving sequence is a first path check information receiving sequence, a second path check information receiving sequence, the third system information receiving sequence is a third path check information receiving sequence, and a fourth path check information receiving sequence

According to the received information, the received information is decoded by a Turbo decoder to obtain a third CB decoding result, namely a CB1 original bit sequence

S12: the CB2 is decoded based on the received information. The third system information is the second system information of CB2 and the check information P of the linear block code_bThe second system information of CB2 needs to be restored first, because of the superposition. As shown in fig. 4-d and fig. 4-e, the precoding module at the receiving end is completely consistent with the precoding module at the transmitting end, and is also a coding matrix Q, and the second system information receiving sequence of CB2 can be recovered by the precoding module, for example, by calculating as follows:

then, after the fourth CB receiving sequence is decoded by a Turbo decoder, a fourth CB decoding result, namely a CB2 original bit sequence is obtained

S13: if the CB1 passes the CRC check, which indicates that the CB1 has been successfully decoded after S11, the decoding is ended, and a third CB decoding result is output, and if the CB1 fails the CRC check, that is, the CB1 fails to decode, the decoding flow shown by the dotted line in fig. 4-e is activated, that is, the following steps S14 to S16 are performed.

S14: using and recovering secondary check information for linear block decoders

And the decoding result is obtained by performing exclusive-or calculation on the fourth CB decoding result and the third system information receiving sequence.

S15: and the formed matrix is used as the input of a linear block code decoder, and the supervision matrix H of the linear block code decoder is a linear block code generating matrix G formed by a precoding matrix Q ═ I | Q]Corresponding supervision matrix, H matrix is matrix P from top to bottom^TAnd the unit matrix I, according to the coding and decoding principle of linear block code, G and H need to satisfy the following relation:

wherein, the right end 0 of the equation in the formula refers to the all 0 matrix, since P, Q are binary 0 and 1 matrices, P is known from the above formula^ΤQ. Thus, after the supervision matrix H is satisfied and the supervision matrix of the linear block code decoder is obtained, the linear block code decoder is equivalent to correcting the CB1 information which is not correctly decoded by using the auxiliary check information superimposed on the CB2 again, so that the decoderThe decoded output is the third CB decoding result, i.e. modified

S16: the selection module is used for ending decoding and outputting a current decoding result if the corrected CB1 sequence passes the CRC check; if not, the above-mentioned steps S11 to S15 are repeated on the premise that the number of iterations does not exceed the set threshold (i.e., the maximum number of iterations is not reached).

The channel decoding process described above can be seen from fig. 4-e, and CB1& CB2 hard decisions indicate that if CB1 is successfully decoded, the CB1 information used for recovery in S13 is a correctly decoded code block.

As can be seen from the foregoing description of the present invention, based on the existing LTE framework and PDSCH data processing flow, in the scheduling period of a TTI, the embodiment of the present invention introduces a precoding mechanism to the feature that the importance of video data in the MAC PDU multiplexed and formed in the TTI is identifiable, so as to increase the data correlation between code blocks, thereby enhancing the FEC protection degree for the code blocks carrying BL data with high video service importance. By combining with an improved decoding mechanism of a receiving end, on the basis of not influencing the Turbo decoding performance of the whole MAC PDU, the decoding success probability of important BL data carrying video service is improved, and the reliability of end-to-end reconstruction of video transmission in LTE is improved. Due to the IL-FEC mechanism of the sending end, the iterative decoding mechanism of the receiving end can improve the decoding success probability of the receiving end, so that the decoding error probability of the MAC PDU is reduced, the retransmission times of the MAC PDU are reduced, and the LTE bandwidth resource is saved. In addition, the embodiment of the invention changes the code block segmentation and channel coding module in the PDSCH data processing flow at the side of the LTE eNB and the corresponding improvement of the peer-to-peer channel decoding module at the side of the UE, and the engineering is simple to realize.

It should be noted that, in the foregoing embodiment, processing of video data is taken as an example, but the embodiment of the present invention is not limited to video service data, and the UEP processing of the present invention may be performed in a channel coding module as long as a certain service has a characteristic that importance degrees can be distinguished and data of different importance degrees of the service can be divided differently before entering PDSCH data processing. Meanwhile, the invention is improved based on the Turbo channel coding in the existing LTE, and if the channel coding method is in other channel coding modes, the data processing method provided by the embodiment of the invention can be also adopted as long as the channel coding method has system code characteristics, namely the system information and the check information of the coded code word are not crossed, such as convolutional codes, Hamming codes and the like.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.

To facilitate a better implementation of the above-described aspects of embodiments of the present invention, the following also provides relevant means for implementing the above-described aspects.

Referring to fig. 5-a, a base station 500 according to an embodiment of the present invention may include: an encoding module 501, a check information calculation module 502, a system information update module 503, and a transmission module 504, wherein,

an encoding module 501, configured to perform channel coding on the first code block CB to obtain a third CB, where the third CB includes: the first system information, the first path of check information and the second path of check information; performing channel coding on the second CB to obtain a fourth CB, where the fourth CB includes: the base station comprises a first system information, a second system information, a third path of check information and a fourth path of check information, wherein the importance degree of data carried by a third CB is greater than that of data carried by a fourth CB, and the first CB and the second CB are two code blocks obtained by the base station after the base station segments a transmission block;

a check information calculation module 502, configured to multiply a preset coding matrix with the first system information to generate check information of a linear block code, where the coding matrix and an identity matrix form a generating matrix of the linear block code;

a system information updating module 503, configured to perform xor calculation on the check information of the linear block code and the second system information to obtain third system information, and replace the second system information included in the fourth CB with the third system information to obtain a fifth CB, where the fifth CB includes: third system information, third path verification information and fourth path verification information;

a sending module 504, configured to send the third CB to a terminal device, and send the fifth CB to the terminal device by the base station.

In some embodiments of the present invention, referring to fig. 5-b, the base station 500 further includes: a CRC processing module 505, configured to perform Cyclic Redundancy Check (CRC) processing on the first code block CB before the coding module 501 performs channel coding on the first code block CB to obtain a third CB.

In some embodiments of the present invention, the CRC processing module 505 is further configured to perform CRC processing on the second CB before the coding module performs channel coding on the second CB to obtain a fourth CB.

In some embodiments of the present invention, referring to fig. 5-c, the base station 500 further includes: a multi-stage processing module 506, configured to perform rate matching and interleaving coding on the third CB before the sending module 504 sends the third CB to a terminal device and sends a fifth CB to the terminal device, perform rate matching and interleaving coding on the fifth CB, and then perform code block concatenation and data modulation on the third CB after completing the interleaving coding and the fifth CB after completing the interleaving coding.

As can be seen from the above description of the embodiment of the present invention, first, a base station performs channel coding on a first CB and a second CB obtained after a transport block is segmented by a code block, to obtain a third CB and a fourth CB, where an importance degree of data carried by the third CB is greater than an importance degree of data carried by the fourth CB, the third CB includes first system information, first path check information, and second path check information, and the fourth CB includes: the base station multiplies a preset coding matrix and the first system information to generate check information of the linear block code, the coding matrix and the unit matrix form a generating matrix of the linear block code, the base station carries out XOR calculation on the check information of the linear block code and the second system information to obtain third system information, the second system information included by the fourth CB is replaced by the third system information to obtain a fifth CB, and the fifth CB comprises: and the base station sends a third CB to the terminal equipment, and the base station sends a fifth CB to the UE. Because the importance degree of the data carried by the third CB is greater than that of the data carried by the fourth CB, the base station multiplies the preset coding matrix by the first system information, carries the obtained check information of the linear block code in the fourth CB, generates the fifth CB, and increases the correlation between the third CB and the fourth CB in the fifth CB, and after the terminal device obtains the fifth CB receiving sequence, the second system information receiving sequence can be recovered through the third system information sequence carried in the fifth CB receiving sequence, so that unequal error protection of the third CB and the fourth CB can be realized, and under the same network condition, the third CB carrying the data with higher importance degree can be endowed with stronger error protection, and the transmission quality of the third CB from the transmitting end to the receiving end can be improved.

Referring to fig. 6-a, a terminal device 600 according to an embodiment of the present invention may include: a receiving module 601, a decoding module 602, a system information updating module 603, wherein,

a receiving module 601, configured to receive a third code block CB sent by a base station, to obtain a third CB receiving sequence, where the third CB receiving sequence includes: the system comprises a first system information receiving sequence, a first path check information receiving sequence and a second path check information receiving sequence; receiving a fifth CB sent by the base station to obtain a fifth CB receiving sequence, where the fifth CB receiving sequence includes: a third system information receiving sequence, a third verification information receiving sequence and a fourth verification information receiving sequence;

a decoding module 602, configured to perform channel decoding on the third CB receiving sequence after the third CB receiving sequence is obtained, so as to obtain a third CB decoding result;

a system information updating module 603, configured to multiply the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, perform xor calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replace the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, where the fourth CB receiving sequence includes: the second system information receiving sequence, the third verification information receiving sequence and the fourth verification information receiving sequence;

the decoding module 602 is further configured to perform channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result.

In some embodiments of the present invention, referring to fig. 6-b, the terminal device 600 further includes: a decoding judgment module 604, an auxiliary check information calculation module 605 and a modification module 606, wherein,

the decoding determining module 604 is configured to perform channel decoding on the fourth CB receiving sequence by the decoding module 602, and after a fourth CB decoding result is obtained, determine whether the channel decoding performed on the third CB receiving sequence is successful;

the auxiliary check information calculation module 605 is configured to perform xor calculation on the third system information receiving sequence and the fourth CB decoding result if the decoding module fails to perform channel decoding on the third CB receiving sequence, and generate auxiliary check information of a linear block code;

the correction module 606 is configured to use the auxiliary check information and the third CB decoding result as inputs of a linear block code decoder, and obtain a third CB correction result output by the linear block code decoder.

In some embodiments of the present invention, the decoding determining module 604 is further configured to trigger the system information updating module 603 to be executed if the decoding module 602 performs channel decoding on the third CB receiving sequence successfully.

In some embodiments of the present invention, referring to fig. 6-a, as compared with fig. 6-c, the terminal device 600 further includes an iteration judgment module 607, configured to perform xor calculation on the third system information receiving sequence and the fourth CB decoding result by the auxiliary check information calculation module 603, judge whether the decoding frequency of channel decoding the third CB receiving sequence exceeds a preset iteration frequency threshold before generating the auxiliary check information of the linear block code, and trigger execution of the auxiliary check information calculation module 603 if the decoding frequency of channel decoding the third CB receiving sequence does not exceed the preset iteration frequency threshold.

In some embodiments of the present invention, referring to fig. 6-d as compared with fig. 6-a, the terminal device 600 further includes a CRC processing module 608, configured to perform a CRC check on a third CB decoding result after the decoding module 602 performs channel decoding on the third CB received sequence to obtain the third CB decoding result; if the result of CRC check on the third CB decoding result is successful, outputting the third CB decoding result; and if the result of CRC check on the third CB decoding result is check failure, discarding the third CB decoding result, or informing the base station to resend the third CB by the terminal equipment.

In some embodiments of the present invention, the CRC processing module 608 is configured to perform, by the decoding module, channel decoding on the fourth CB received sequence to obtain a fourth CB decoding result, and perform CRC check on the fourth CB decoding result; if the result of CRC check on the fourth CB decoding result is successful, outputting the fourth CB decoding result; and if the result of CRC check on the fourth CB decoding result is check failure, discarding the fourth CB decoding result, or informing the base station to resend the fifth CB by the terminal equipment.

In some embodiments of the present invention, the receiving module 601 is specifically configured to perform data demodulation on a third CB and a fifth CB sent by the base station, then perform rate matching and interleaving decoding on the demodulated third CB to obtain a third CB receiving sequence, and perform rate matching and interleaving decoding on the demodulated fifth CB to obtain a fifth CB receiving sequence.

As can be seen from the above description of the embodiments of the present invention, a terminal device, as a receiving end, first receives a third CB sent by a base station to obtain a third CB receiving sequence, and receives a fifth CB sent by the base station to obtain a fifth CB receiving sequence, where the third CB receiving sequence includes: the first system information receiving sequence, the first path checking information receiving sequence, the second path checking information receiving sequence and the fifth CB receiving sequence comprise: the third system information receiving sequence, the third verification information receiving sequence and the fourth verification information receiving sequence, after the terminal device obtains the third CB receiving sequence, the terminal device performs channel decoding on the third CB receiving sequence to obtain a third CB decoding result, the terminal device multiplies the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performs exclusive or calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replaces the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, wherein the fourth CB receiving sequence comprises: and the terminal equipment performs channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result. Because the importance degree of the data carried by the third CB is greater than that of the data carried by the fourth CB, the base station multiplies the preset coding matrix by the first system information, carries the obtained check information of the linear block code in the fourth CB, generates the fifth CB, and increases the correlation between the third CB and the fourth CB in the fifth CB, and after the terminal device obtains the fifth CB receiving sequence, the second system information receiving sequence can be recovered through the third system information sequence carried in the fifth CB receiving sequence, so that unequal error protection of the third CB and the fourth CB can be realized, and under the same network condition, the third CB with higher importance degree can be endowed with stronger error protection, and the transmission quality of the third CB from the transmitting end to the receiving end can be improved.

It should be noted that, because the contents of information interaction, execution process, and the like between the modules/units of the apparatus are based on the same concept as the method embodiment of the present invention, the technical effect brought by the contents is the same as the method embodiment of the present invention, and specific contents may refer to the description in the foregoing method embodiment of the present invention, and are not described herein again.

The foregoing embodiment describes a base station and a terminal device provided in an embodiment of the present invention, and a communication system provided in an embodiment of the present invention is introduced next, where the communication system may include: a base station and a terminal device, where the base station is the base station shown in any one of the foregoing fig. 5-a, fig. 5-b, and fig. 5-c, and the terminal device is the terminal device shown in any one of the foregoing fig. 6-a, fig. 6-b, fig. 6-c, and fig. 6-d, and the base station and the terminal device included in the communication system are described in detail in the foregoing embodiments and are not described herein again.

An embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a program, and the program executes some or all of the steps described in the above method embodiments.

Referring to fig. 7, a base station 700 according to another embodiment of the present invention is described as follows:

a receiver 701, a transmitter 702, a processor 703 and a memory 704 (wherein the number of processors 703 in the base station 700 may be one or more, one processor is taken as an example in fig. 7). In some embodiments of the present invention, the receiver 701, the transmitter 702, the processor 703 and the memory 704 may be connected by a bus or other means, wherein fig. 7 illustrates the connection by a bus.

The processor 703 executes the data processing method executed by the base station side in the foregoing embodiment. Specifically, the processor 703 is configured to execute the following steps:

performing channel coding on the first code block CB to obtain a third CB, where the third CB includes: the first system information, the first path of check information and the second path of check information;

performing channel coding on the second CB to obtain a fourth CB, where the fourth CB includes: the base station comprises a first system information, a second system information, a third path of check information and a fourth path of check information, wherein the importance degree of data carried by a third CB is greater than that of data carried by a fourth CB, and the first CB and the second CB are two code blocks obtained by the base station after the base station segments a transmission block;

multiplying a preset coding matrix by the first system information to generate check information of the linear block code, wherein the coding matrix and the unit matrix form a generating matrix of the linear block code;

performing xor calculation on the check information of the linear block code and the second system information to obtain third system information, replacing the second system information included in the fourth CB with the third system information to obtain a fifth CB, wherein the fifth CB includes: third system information, third path verification information and fourth path verification information;

and controlling the transmitter 702 to transmit the third CB to the terminal equipment, and to transmit the fifth CB to the terminal equipment.

In some embodiments of the present invention, the processor 703 is further configured to perform the following steps:

and before channel coding is carried out on the first code block CB to obtain a third CB, cyclic redundancy check code CRC processing is carried out on the first CB.

In some embodiments of the present invention, the processor 703 is further configured to perform the following steps: and performing CRC processing on the second CB before performing channel coding on the second CB to obtain a fourth CB.

and controlling the transmitter 702 to transmit the third CB to the terminal device, and before transmitting the fifth CB to the terminal device, performing rate matching and interleaving coding on the third CB, performing rate matching and interleaving coding on the fifth CB, and then performing code block concatenation and data modulation on the third CB after completing the interleaving coding and the fifth CB after completing the interleaving coding.

Referring to fig. 8, a terminal device 800 according to another embodiment of the present invention is described below, where the terminal device includes:

a receiver 801, a transmitter 802, a processor 803 and a memory 804 (wherein the number of processors 803 in the terminal device 800 may be one or more, one processor is taken as an example in fig. 8). In some embodiments of the present invention, the receiver 801, the transmitter 802, the processor 803 and the memory 804 may be connected by a bus or other means, wherein fig. 8 illustrates a connection by a bus.

Wherein, the processor 803 executes the data processing method executed by the terminal device side in the foregoing embodiment. Specifically, the processor 803 is configured to perform the following steps:

in some embodiments of the invention, the processor 803 is further configured to perform the following steps:

the control receiver 801 receives a third code block CB sent by the base station to obtain a third CB receiving sequence, where the third CB receiving sequence includes: the system comprises a first system information receiving sequence, a first path check information receiving sequence and a second path check information receiving sequence;

the control receiver 801 receives a fifth CB sent by the base station, to obtain a fifth CB receiving sequence, where the fifth CB receiving sequence includes: a third system information receiving sequence, a third verification information receiving sequence and a fourth verification information receiving sequence;

after the third CB receiving sequence is obtained, carrying out channel decoding on the third CB receiving sequence to obtain a third CB decoding result;

multiplying the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performing xor calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replacing the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, where the fourth CB receiving sequence includes: the second system information receiving sequence, the third verification information receiving sequence and the fourth verification information receiving sequence;

and carrying out channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result.

In some embodiments of the present invention, the processor 803 is further configured to perform the following steps: performing channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result, and then judging whether the channel decoding on the third CB receiving sequence is successful; if the channel decoding of the third CB receiving sequence fails, carrying out XOR calculation on the third system information receiving sequence and the fourth CB decoding result to generate auxiliary check information of the linear block code; and taking the auxiliary verification information and the third CB decoding result as the input of a linear block code decoder, and acquiring a third CB correction result output by the linear block code decoder.

In some embodiments of the present invention, the processor 803 is further configured to perform the following steps:

after judging whether the channel decoding is successfully carried out on the third CB receiving sequence, if the channel decoding is successfully carried out on the third CB receiving sequence, triggering the execution step: and multiplying the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, carrying out XOR calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replacing the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence.

performing exclusive-or calculation on the third system information receiving sequence and the fourth CB decoding result, before generating auxiliary check information of a linear block code, judging whether the decoding frequency of performing channel decoding on the third CB receiving sequence exceeds a preset iteration frequency threshold, and if the decoding frequency of performing channel decoding on the third CB receiving sequence does not exceed the preset iteration frequency threshold, triggering to execute the steps of: and carrying out exclusive OR calculation on the third system information receiving sequence and the fourth CB decoding result to generate auxiliary check information of the linear block code.

In some embodiments of the present invention, the processor 803 is further configured to perform the following steps: performing channel decoding on the third CB receiving sequence to obtain a third CB decoding result, and performing Cyclic Redundancy Check (CRC) check on the third CB decoding result; if the result of CRC check on the third CB decoding result is successful, outputting the third CB decoding result; and if the result of CRC check on the third CB decoding result is check failure, discarding the third CB decoding result, or informing the base station to resend the third CB.

performing channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result, and performing CRC (cyclic redundancy check) on the fourth CB decoding result; if the result of CRC check on the fourth CB decoding result is successful, outputting the fourth CB decoding result; and if the result of CRC check on the fourth CB decoding result is check failure, discarding the fourth CB decoding result, or informing the base station to resend a fifth CB.

In some embodiments of the present invention, the processor 803 is specifically configured to perform the following steps:

and performing data demodulation on the third CB and the fifth CB sent by the base station, then performing rate matching and interleaving decoding on the demodulated third CB to obtain a third CB receiving sequence, and performing rate matching and interleaving decoding on the demodulated fifth CB to obtain a fifth CB receiving sequence.

It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus necessary general hardware, and may also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, the implementation of a software program is a more preferable embodiment for the present invention. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

In summary, the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the above embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

A data processing method, comprising:

the base station performs channel coding on the first code block CB to obtain a third CB, wherein the third CB comprises: the first system information, the first path of check information and the second path of check information;

the base station performs channel coding on the second CB to obtain a fourth CB, and the fourth CB comprises: the base station comprises a first system information, a second system information, a third path of check information and a fourth path of check information, wherein the importance degree of data carried by a third CB is greater than that of data carried by a fourth CB, and the first CB and the second CB are two code blocks obtained by the base station after the base station segments a transmission block;

the base station multiplies a preset coding matrix by the first system information to generate check information of the linear block code, and the coding matrix and the unit matrix form a generating matrix of the linear block code;

the base station performs exclusive-or calculation on the check information of the linear block code and the second system information to obtain third system information, and replaces the second system information included in the fourth CB with the third system information to obtain a fifth CB, wherein the fifth CB includes: third system information, third path verification information and fourth path verification information;

and the base station sends the third CB to a terminal device, and the base station sends the fifth CB to the terminal device.
The method of claim 1, wherein before the base station channel-codes a first Code Block (CB) to obtain a third CB, the method further comprises:

and the base station performs Cyclic Redundancy Check (CRC) processing on the first CB.
The method of claim 1, wherein before the base station channel-codes the second CB to obtain the fourth CB, the method further comprises:

and the base station performs CRC processing on the second CB.
The method of claim 1, wherein before the base station sends the third CB to a terminal device and before the base station sends the fifth CB to a terminal device, the method further comprises:

and the base station performs rate matching and interleaving coding on the third CB, performs rate matching and interleaving coding on the fifth CB, and then performs code block cascade and data modulation on the third CB after the interleaving coding and the fifth CB after the interleaving coding.
A data processing method, comprising:

the terminal equipment receives a third code block CB sent by the base station to obtain a third CB receiving sequence, wherein the third CB receiving sequence comprises: the system comprises a first system information receiving sequence, a first path check information receiving sequence and a second path check information receiving sequence;

the terminal device receives a fifth CB sent by the base station to obtain a fifth CB receiving sequence, where the fifth CB receiving sequence includes: a third system information receiving sequence, a third verification information receiving sequence and a fourth verification information receiving sequence;

after the terminal equipment obtains the third CB receiving sequence, the terminal equipment performs channel decoding on the third CB receiving sequence to obtain a third CB decoding result;

the terminal device multiplies the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performs exclusive or calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replaces the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, where the fourth CB receiving sequence includes: the second system information receiving sequence, the third verification information receiving sequence and the fourth verification information receiving sequence;

and the terminal equipment performs channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result.
The method according to claim 5, wherein after the terminal device performs channel decoding on the fourth CB received sequence to obtain a fourth CB decoding result, the method further comprises:

the terminal equipment judges whether channel decoding is successfully carried out on the third CB receiving sequence;

if the terminal equipment fails to decode the third CB receiving sequence by the channel, the terminal equipment performs exclusive OR calculation on the third system information receiving sequence and the fourth CB decoding result to generate auxiliary check information of the linear block code;

and the terminal equipment takes the auxiliary verification information and the third CB decoding result as the input of a linear block code decoder to obtain a third CB correction result output by the linear block code decoder.
The method of claim 6, wherein after the terminal device determines whether channel decoding of the third CB received sequence is successful, the method further comprises:

if the terminal equipment successfully performs channel decoding on the third CB receiving sequence, triggering and executing the steps of: and the terminal equipment multiplies the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, performs exclusive OR calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, and replaces the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence.
The method as claimed in claim 6, wherein before the terminal device performs xor calculation on the third system information receiving sequence and the fourth CB decoding result to generate the auxiliary check information of the linear block code, the method further comprises:

the terminal equipment judges whether the decoding times of channel decoding the third CB receiving sequence exceed a preset iteration time threshold, and if the decoding times of channel decoding the third CB receiving sequence do not exceed the preset iteration time threshold, the terminal equipment triggers the execution steps of: and the terminal equipment performs exclusive-or calculation on the third system information receiving sequence and the fourth CB decoding result to generate auxiliary check information of the linear block code.
The method according to claim 5, wherein after the terminal device performs channel decoding on the third CB received sequence to obtain a third CB decoding result, the method further comprises:

the terminal equipment performs Cyclic Redundancy Check (CRC) on the third CB decoding result;

if the result of CRC check on the third CB decoding result is successful, the terminal equipment outputs the third CB decoding result;

and if the result of CRC check on the third CB decoding result is check failure, the terminal equipment discards the third CB decoding result, or the terminal equipment informs the base station to resend the third CB.
The method according to claim 5, wherein after the terminal device performs channel decoding on the fourth CB received sequence to obtain a fourth CB decoding result, the method further comprises:

the terminal equipment performs CRC on the fourth CB decoding result;

if the result of CRC check on the fourth CB decoding result is successful, the terminal equipment outputs the fourth CB decoding result;

and if the result of CRC check on the fourth CB decoding result is check failure, the terminal equipment discards the fourth CB decoding result, or informs the base station to resend the fifth CB.
The method of claim 5, wherein the receiving, by the terminal device, a third code block CB sent by a base station to obtain a third CB received sequence, and receiving, by the terminal device, a fifth CB sent by the base station to obtain a fifth CB received sequence, comprises:

and the terminal equipment demodulates the data of the third CB and the fifth CB sent by the base station, then performs rate matching and interleaving decoding on the demodulated third CB to obtain a third CB receiving sequence, and performs rate matching and interleaving decoding on the demodulated fifth CB to obtain a fifth CB receiving sequence.
A base station, comprising:

a coding module, configured to perform channel coding on the first code block CB to obtain a third CB, where the third CB includes: the first system information, the first path of check information and the second path of check information; performing channel coding on the second CB to obtain a fourth CB, where the fourth CB includes: the base station comprises a first system information, a second system information, a third path of check information and a fourth path of check information, wherein the importance degree of data carried by a third CB is greater than that of data carried by a fourth CB, and the first CB and the second CB are two code blocks obtained by the base station after the base station segments a transmission block;

the check information calculation module is used for multiplying a preset coding matrix by the first system information to generate check information of the linear block code, and the coding matrix and the unit matrix form a generating matrix of the linear block code;

a system information updating module, configured to perform xor calculation on the check information of the linear block code and the second system information to obtain third system information, and replace the second system information included in the fourth CB with the third system information to obtain a fifth CB, where the fifth CB includes: third system information, third path verification information and fourth path verification information;

and the sending module is used for sending the third CB to the terminal equipment and sending the fifth CB to the terminal equipment.
The base station of claim 12, wherein the base station further comprises: and the CRC processing module is used for performing Cyclic Redundancy Check (CRC) processing on the first CB before the coding module performs channel coding on the first code block CB to obtain a third CB.
The base station of claim 12, wherein the base station further comprises: and the CRC processing module is used for performing CRC processing on the second CB before the coding module performs channel coding on the second CB to obtain a fourth CB.
The base station of claim 13, further comprising: and the multilevel processing module is used for performing rate matching and interleaving coding on the third CB before the sending module sends the third CB to a terminal device and sending the fifth CB to the terminal device, performing rate matching and interleaving coding on the fifth CB, and then performing code block cascade and data modulation on the third CB after the interleaving coding and the fifth CB after the interleaving coding are completed.
A terminal device, comprising:

a receiving module, configured to receive a third code block CB sent by a base station, to obtain a third CB receiving sequence, where the third CB receiving sequence includes: the system comprises a first system information receiving sequence, a first path check information receiving sequence and a second path check information receiving sequence; receiving a fifth CB sent by the base station to obtain a fifth CB receiving sequence, where the fifth CB receiving sequence includes: a third system information receiving sequence, a third verification information receiving sequence and a fourth verification information receiving sequence;

the decoding module is used for carrying out channel decoding on the third CB receiving sequence after the third CB receiving sequence is obtained, so as to obtain a third CB decoding result;

a system information updating module, configured to multiply the third CB decoding result by a preset coding matrix to obtain a system information recovery sequence, perform xor calculation on the system information recovery sequence and the third system information receiving sequence to obtain a second system information receiving sequence, replace the third system information receiving sequence included in the fifth CB receiving sequence with the second system information receiving sequence to obtain a fourth CB receiving sequence, where the fourth CB receiving sequence includes: the second system information receiving sequence, the third verification information receiving sequence and the fourth verification information receiving sequence;

the decoding module is further configured to perform channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result.
The terminal device according to claim 16, further comprising a decoding judgment module, an auxiliary verification information calculation module and a modification module, wherein,

the decoding judgment module is used for the decoding module to perform channel decoding on the fourth CB receiving sequence to obtain a fourth CB decoding result and then judging whether the channel decoding on the third CB receiving sequence is successful;

the auxiliary check information calculation module is configured to perform xor calculation on the third system information receiving sequence and the fourth CB decoding result if the decoding module fails to perform channel decoding on the third CB receiving sequence, and generate auxiliary check information of a linear block code;

and the correction module is used for taking the auxiliary check information and the third CB decoding result as the input of a linear block code decoder and acquiring the third CB correction result output by the linear block code decoder.
The terminal device of claim 17, wherein the decoding determining module is further configured to trigger execution of the system information updating module if the decoding module successfully performs channel decoding on the third CB receiving sequence.
The terminal device of claim 17, further comprising an iteration judgment module, configured to perform XOR calculation on the third system information receiving sequence and the fourth CB decoding result by the auxiliary check information calculation module, judge whether the decoding frequency for performing channel decoding on the third CB receiving sequence exceeds a preset iteration frequency threshold before generating the auxiliary check information of the linear block code, and trigger execution of the auxiliary check information calculation module if the decoding frequency for performing channel decoding on the third CB receiving sequence does not exceed the preset iteration frequency threshold.
The terminal device according to claim 16, further comprising a Cyclic Redundancy Check (CRC) processing module, configured to perform channel decoding on the third CB received sequence by the decoding module to obtain a third CB decoding result, and then perform CRC on the third CB decoding result; if the result of CRC check on the third CB decoding result is successful, outputting the third CB decoding result; and if the result of CRC check on the third CB decoding result is check failure, discarding the third CB decoding result, or informing the base station to resend the third CB by the terminal equipment.
The terminal device according to claim 16, further comprising a Cyclic Redundancy Check (CRC) processing module, configured to perform channel decoding on the fourth CB received sequence by the decoding module to obtain a fourth CB decoding result, and perform CRC on the fourth CB decoding result; if the result of CRC check on the fourth CB decoding result is successful, outputting the fourth CB decoding result; and if the result of CRC check on the fourth CB decoding result is check failure, discarding the fourth CB decoding result, or informing the base station to resend the fifth CB by the terminal equipment.
The terminal device of claim 16, wherein the receiving module is specifically configured to demodulate data of a third CB and a fifth CB sent by the base station, perform rate matching and interleaving decoding on the demodulated third CB to obtain a third CB receiving sequence, and perform rate matching and interleaving decoding on the demodulated fifth CB to obtain a fifth CB receiving sequence.