CN117134857A

CN117134857A - Data transmission method and device

Info

Publication number: CN117134857A
Application number: CN202210543020.8A
Authority: CN
Inventors: 白伟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2023-11-28

Abstract

The application discloses a data transmission method and device, and relates to the technical field of communication. The specific implementation scheme is as follows: the method comprises the steps of loading coded data to be transmitted at a first segmentation position of a transmission resource block, loading set data at a second segmentation position except the first segmentation position in the transmission resource block, so as to obtain a data sequence loaded by the transmission resource block, interleaving the data sequence, mapping the interleaved data sequence, so as to obtain a modulation symbol, and sending a data signal corresponding to the modulation symbol to network equipment. Therefore, the coding data and the setting data are respectively borne on different segmentation positions of the transmission resource block to obtain a data sequence borne by the transmission resource block, and the whole data sequence is interleaved and mapped to realize the full utilization of space diversity gain, so that the transmission performance is effectively improved, and the performance requirement of a huge number of terminal transmission scenes can be met.

Description

Data transmission method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a signal detection method, a signal detection device, a communication device, and a storage medium.

Background

As mobile communication progresses, a plurality of organizations begin to study a new wireless communication system, i.e., 6G (6-Generation, sixth Generation mobile communication standard). The increase in the number of connected devices is one of the important driving forces of 6G, and in some key technical indexes, the density of the connected devices may reach tens of millions per square kilometer of terminal. However, the initial access and data transmission of a huge number of terminals are limited by the coordinated signaling resources of the network, so that the number of connected devices cannot be accommodated, and the common contention access technology is also limited by the data transmission resources of the network, if the huge number of terminals adopt the orthogonal multiple access technology, even if each device occupies 1 PRB (Physical Resource Block, physical resource module) resource respectively, tens of thousands of PRBs or more are required, which is far greater than the total number of PRBs in a cell, therefore, it is necessary to find a multiple access transmission method applicable to the transmission scenario of the huge number of terminals to support the initial access and data transmission of the huge number of terminals.

Disclosure of Invention

The application provides a data transmission method and device.

According to an aspect of the present application, there is provided a data transmission method performed by a terminal device, including:

Carrying coded data to be transmitted at a first segmentation position of a transmission resource block, and carrying set data at a second segmentation position except the first segmentation position in the transmission resource block so as to obtain a data sequence carried by the transmission resource block;

interleaving the data sequence;

mapping the interleaved data sequence to obtain a modulation symbol;

and transmitting a data signal corresponding to the modulation symbol to the network equipment.

Optionally, the mapping the interleaved data sequence to obtain a modulation symbol includes:

grouping the interleaved data sequences according to a modulation mode;

under the condition that the same group contains coded data, mapping is carried out by adopting the modulation mode so as to obtain a corresponding modulation symbol;

when the same group only contains the setting data, the setting data in the group is directly mapped into the setting symbol; the setting symbol is used for indicating that no signal is sent on the corresponding resource unit.

Optionally, after grouping the interleaved data sequence according to a modulation mode, the method further includes:

determining, from among the packets, a first packet including encoded data and setting data, and at least one second packet including encoded data after the first packet;

Deleting the setting data in the first packet and filling the coding data in the at least one second packet into the first packet; the method comprises the steps of,

modifying the encoded data in the at least one second packet to the setting data.

determining a first packet containing the encoded data and the setting data from among the packets;

modifying the setting data according to the encoded data in the first packet.

Optionally, said modifying said setting data according to said encoded data in said first packet comprises:

modifying the setting data in the first packet to be the same as the encoded data in the first packet;

or modifying the setting data in the first group into the result data obtained by setting operation of the coding data in the first group;

or modifying the setting data in the first packet according to the mapping data corresponding to the coding data of the first packet in the first mapping table; the first mapping table is preconfigured and used for indicating the corresponding relation between the coded data and the mapping data corresponding to the coded data.

Optionally, the first segment is a candidate segment having a size matching the data amount of the encoded data and/or corresponding to metadata of the encoded data, among the plurality of segments divided by the transmission resource block.

Optionally, the method further comprises:

and receiving indication information sent by the network equipment, wherein the indication information is used for indicating a plurality of segments divided by the transmission resource block.

According to another aspect of the present application, there is provided a data transmission method performed by a terminal device, including:

detecting signals sent by terminal equipment to determine data signals;

determining a first segmentation position for bearing coded data from a transmission resource block adopted by the terminal equipment;

determining the position of a modulation symbol from the data signal according to the first segmentation position and an interleaving mode adopted by the terminal equipment;

and carrying out inverse mapping and de-interleaving on the data signals according to the positions of the modulation symbols so as to determine encoded data.

Optionally, the determining the position of the modulation symbol from the data signal according to the first segment position and the interleaving manner adopted by the terminal device includes:

Filling the first segment in the transmission resource block with first data, and filling the second segment except the first segment with second data to obtain a first data sequence;

interleaving the first data sequence by adopting an interleaving mode of the terminal equipment, and mapping by adopting a modulation mode of the terminal equipment;

and determining the position of the modulation symbol in the data signal according to the position of the modulated first data.

Optionally, the mapping by adopting the modulation mode of the terminal device includes:

grouping the first data sequence after interleaving according to a modulation mode;

under the condition that the same packet contains the first data, mapping is carried out by adopting the modulation mode;

when the second data is contained in the same packet, the setting data in the packet is directly mapped to a setting symbol.

Optionally, after grouping the interleaved first data sequence according to the modulation mode, the method further includes:

determining, from among the packets, any one of a first packet containing the first data and the second data, and at least one second packet containing the first data after the first packet;

Deleting the second data in the first packet and padding the first data in the at least one second packet into the first packet; the method comprises the steps of,

modifying first data in the at least one second packet to the second data.

Optionally, the inverse mapping and de-interleaving the data signal according to the position of the modulation symbol to determine encoded data includes:

inversely mapping the position of the data signal corresponding to the modulation symbol to obtain a second data sequence;

replacing corresponding first data in the interleaved first data sequence according to the demodulation data in the second data sequence to obtain a third data sequence;

and de-interleaving the third data sequence according to an interleaving mode adopted by the terminal equipment so as to take demodulated data in the de-interleaved third data sequence as coded data of the terminal equipment.

Optionally, after grouping the interleaved first data sequence according to a modulation mode, the method further includes:

determining a first packet containing the first data and the second data from each of the packets;

modifying the second data according to the first data in the first packet.

Optionally, said modifying said second data according to said first data in said first packet comprises:

modifying second data in the first packet to be the same as the first data in the first packet;

or modifying the second data in the first group into result data obtained by performing setting operation on the first data in the first group;

or modifying second data in the first packet according to mapping data corresponding to the first data of the first packet in a second mapping table; the second mapping table is preconfigured and is used for indicating the corresponding relation between the first data and the mapping data corresponding to the first data.

grouping the second data sequence according to a demodulation mode; wherein, each packet in the second data sequence corresponds to the packet containing the first data in the first data sequence after interleaving one by one;

According to the demodulation data in each packet of the second data sequence, replacing the data of the corresponding packet in the first data sequence after interleaving to generate a fourth data sequence;

and de-interleaving the fourth data sequence according to an interleaving mode adopted by the terminal equipment, so as to take the demodulated data in the de-interleaved fourth data sequence as the coded data of the terminal equipment.

Optionally, the generating a fourth data sequence according to the demodulated data in each packet of the second data sequence by replacing the data of the corresponding packet in the interleaved first data sequence includes:

for any packet in the interleaved first data sequence, when the number of the first data contained in the packet is the same as the number of the demodulation data of the corresponding packet in the second data sequence, adopting the demodulation data to correspondingly replace the first data;

combining the demodulated data of the corresponding packet in the second data sequence under the condition that the number of the first data is less than the number of the demodulated data of the corresponding packet in the second data sequence; correspondingly replacing the first data by adopting the combined demodulation data; wherein the number of the combined demodulation data is the same as the number of the replaced first data.

Optionally, the method further comprises:

and sending indication information to the terminal equipment, wherein the indication information is used for indicating a plurality of segments divided by the transmission resource block.

According to another aspect of the present application, there is provided a data transmission apparatus comprising a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

interleaving the data sequence;

mapping the interleaved data sequence to obtain a modulation symbol;

Detecting signals sent by terminal equipment to determine data signals;

According to another aspect of the present application, there is provided a data transmission apparatus comprising:

a determining unit, configured to carry coded data to be transmitted at a first segmentation position of a transmission resource block, and carry setting data at a second segmentation position of the transmission resource block except for the first segmentation position, so as to obtain a data sequence carried by the transmission resource block;

an interleaving unit, configured to interleave the data sequence;

a modulating unit, configured to map the interleaved data sequence to obtain a modulation symbol;

and the first transmitting unit is used for transmitting the data signal corresponding to the modulation symbol to the network equipment.

The detection unit is used for detecting the signal sent by the terminal equipment so as to determine a data signal;

a first position determining unit, configured to determine a first segment position for carrying encoded data from a transmission resource block adopted by the terminal device;

a second position determining unit, configured to determine a position of a modulation symbol from the data signal according to the first segmentation position and an interleaving manner adopted by the terminal device;

and the processing unit is used for carrying out inverse mapping and de-interleaving on the data signals according to the positions of the modulation symbols so as to determine encoded data.

According to another aspect of the present application, there is provided a processor-readable storage medium storing a computer program for causing the processor to execute the data transmission method according to the embodiment of the foregoing aspect.

According to the data transmission method and device, the coded data to be transmitted is loaded at the first segmentation position of the transmission resource block, and the set data is loaded at the second segmentation position except the first segmentation position in the transmission resource block, so that the data sequence loaded by the transmission resource block is obtained, interleaving of the data sequence is realized, the interleaved data sequence is mapped, a modulation symbol is obtained, and a data signal corresponding to the modulation symbol is sent to the network equipment. Therefore, the coding data and the setting data are respectively borne on different segmentation positions of the transmission resource block to obtain a data sequence borne by the transmission resource block, and the whole data sequence is interleaved and mapped to realize the full utilization of space diversity gain, so that the transmission performance is effectively improved, and the performance requirement of a huge number of terminal transmission scenes can be met.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.

Drawings

The drawings are included to provide a better understanding of the present application and are not to be construed as limiting the application. Wherein:

fig. 1 is a schematic diagram of a non-coordinated random access and transmission URAT technique provided according to a first embodiment of the present application;

fig. 2 is a schematic diagram of a CSA scheme according to a second embodiment of the present application;

fig. 3 is a schematic diagram of simulation results between a block error rate BLER and the number of repeated transmissions according to a third embodiment of the present application;

fig. 4 is a schematic diagram of a data transmission method according to a fourth embodiment of the present application;

fig. 5 is a schematic diagram of dividing a transmission resource block into a plurality of segments according to a fifth embodiment of the present application;

fig. 6 is a schematic diagram of a data transmission method according to a sixth embodiment of the present application;

fig. 7 is a schematic diagram of a data transmission method according to a seventh embodiment of the present application;

fig. 8 is a schematic diagram of a data transmission method according to an eighth embodiment of the present application;

Fig. 9 is a schematic diagram of a data transmission method according to a ninth embodiment of the present application;

fig. 10 is a schematic diagram of a data transmission method according to a tenth embodiment of the present application;

fig. 11 is a schematic diagram of a data transmission method according to an eleventh embodiment of the present application;

fig. 12 is a schematic diagram of a data transmission method according to a twelfth embodiment of the present application;

fig. 13 is a schematic diagram of a data transmission method according to a thirteenth embodiment of the present application;

fig. 14 is a schematic structural view of a data transmission device according to a fourteenth embodiment of the present application;

fig. 15 is a schematic structural view of a data transmission device according to a fifteenth embodiment of the present application;

fig. 16 is a schematic structural view of a data transmission device according to a sixteenth embodiment of the present application;

fig. 17 is a schematic structural diagram of a data transmission device according to a seventeenth embodiment of the present application.

Detailed Description

In the embodiment of the application, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Currently, non-coordinated non-orthogonal multiple access techniques may be employed in the related art to support initial access and data transmission for a large number of terminals. One specific implementation is the URAT (Uncoordinated Random Access and Transmission ) technology. The non-coordinated random access and transmission URAT technology is the fusion upgrade of the random access technology and the multiple access transmission technology, and the initial access and the data transmission are not used as two independent processes any more, but are fused into one process, so that the access and the transmission of a large number of terminals are supported, the time delay is reduced, and the success rate of the access and the transmission is improved. That is, in the uncoordinated random access and transmission URAT technique, network coordination is not required, and two processes of random access and multiple access transmission can be simultaneously implemented. Wherein, no need of network coordination refers to no need of network to confirm the access identity of the terminal, no need of network to schedule transmission resources, etc.

A schematic diagram of the non-coordinated random access and transmission URAT technique is shown in fig. 1. Wherein the additional bits are also referred to as metadata bits. As shown in fig. 1, the metadata bits, i.e. the additional bits, are generated from information bits, such as the last a bits of the information bits, cyclic redundancy check CRC bits of the information bits, etc. As can be seen from fig. 1, the flow at the terminal side in the URAT scheme is:

(1) Combining the user identity information and the user data information to obtain information bits;

(2) Obtaining additional bits according to the information bits; wherein the additional bits may be at least one of CRC check bits, transmission indication information, and randomized bits of the information bits;

(3) Performing coding mapping according to the additional bits to generate a preamble sequence;

(4) Generating control information 1 and control information 2 according to the additional bits respectively;

(5) Generating a coding sequence according to the control information 1; the interleaving mode adopted by the coding sequence can be determined by the control information 1;

(6) Generating a data sequence according to the control information 2; wherein the repetition of the data sequence can be determined by the control information 2;

(7) Multiplexing the preamble sequence and the data sequence, and periodically transmitting;

(8) And receiving acknowledgement information of the base station to the information bit, wherein the acknowledgement information comprises the sequence number of the preamble sequence.

In the data sequence generating module in fig. 1, the existing scheme adopts a multiple retransmission or CSA (coded slotted Aloha, coded slot Aloha) scheme. Under the condition that network coordination is not needed, the CSA scheme can obviously improve the throughput of the system. The schematic diagram of the CSA scheme is shown in fig. 2.

As can be seen from fig. 2, the flow of the terminal side in the CSA scheme is:

(1) Dividing a burst (packet on a physical layer) to be transmitted into k segments, wherein the length of each segment is the same;

(2) k segments are channel coded into n _h The segments have the same length before and after coding; wherein the channel coding may be linear block code (linear block code) coding;

(3) Uniformly dividing a MAC frame into k _M Each slice correspondingly transmits one coded segment;

(4) Randomly select n _h Slice, transmit n _h Each segment contains location information of other segments after encoding.

Wherein, different n can be taken between terminals _h Value of n between terminals _h The locations of the individual slices may not be exactly the same, so that multiple access transmissions that can distinguish terminals can be achieved.

On the network side, k segments can be decoded by using received segments without interference or with smaller interference, so as to obtain coded segments on other slices, and further, segments of other terminals are obtained by using a SIC (serial interference cancellation) technology.

However, in the non-coordinated non-orthogonal multiple access technique, the performance may not be as good as single transmission after the repeated transmission processing or CSA processing in the time domain of the code sequence. In one possible implementation, the simulation result between the block error rate BLER and the number of repeated transmissions is shown in fig. 3. The simulation conditions are 300 users, SNR= -24dB, TDL-C30 ns 3km/h channel, QPSK, LDPC coding of 0.0293 code rate, 2T4R antenna configuration, ideal channel estimation and MMSE-SIC receiver.

As shown in fig. 3, the number of repeated transmissions is 7, and 1, 2, 5, 6, and 7 actual repeated transmissions can be simulated. 1.5 times in the figure means that the user can randomly select 1 and 2 actual repeated transmissions with equal probability, and similarly 6.5 times means that the user can randomly select 6 and 7 actual repeated transmissions with equal probability. In addition, along with the change of the actual repeated transmission times, the number of users and the transmitting power can be adjusted differently, for example, the number of users of 1 actual repeated transmission is 1/7 of the number of users of 7 actual repeated transmission, and the power is 7 times.

As can be seen from fig. 3, the performance of 1 transmission is best, the performance of 7 repeated transmissions is inferior, the performance of other repeated transmissions (i.e. more than 1 and less than 7) is inferior to that of 1 and 7 repeated transmissions, and the performance of CSA scheme (randomly selected 1-7) is inferior to that of 1 and 7 repeated transmissions. In addition, the power of 1 actual retransmission is 7 times that of 7 actual retransmissions, which may be greater than the maximum allowed transmit power of the user, and thus is practically impossible.

In summary, in non-coordinated non-orthogonal multiple access techniques, the performance after repeated transmission processing or CSA processing of the code sequence may not be as good as single transmission, and the performance gain of a single transmission may be reduced after power amplification to the maximum allowed transmit power.

In order to solve the above problems, the embodiments of the present application provide a data transmission method and apparatus for improving performance of single transmission in non-coordinated non-orthogonal multiple access transmission.

The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

The technical scheme provided by the embodiment of the application can be applied to various systems. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited in this respect.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for the terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiment of the present application. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

The data transmission method and apparatus of the present embodiment are described below with reference to the accompanying drawings.

Fig. 4 is a schematic diagram of a data transmission method according to a fourth embodiment of the present application.

As shown in fig. 4, the data transmission method may include the steps of:

in step 401, the coded data to be transmitted is carried at a first segmentation position of the transmission resource block, and the set data is carried at a second segmentation position of the transmission resource block except the first segmentation position, so as to obtain a data sequence carried by the transmission resource block.

In this embodiment, the first segment is a candidate segment having a size matching the data amount of the encoded data and/or corresponding to metadata of the encoded data, among the plurality of segments divided by the transmission resource block. Among them, metadata is data (data about other data) describing other data, or structural data (structured data) for providing information about a certain resource.

In this embodiment, the number of the first segments and the second segments may be one or plural, which is not limited in this embodiment.

In this embodiment, the coded data to be transmitted may be carried at a first segmentation position of the transmission resource block, and the setting data may be carried at a second segmentation position of the transmission resource block, except for the first segmentation position, so as to obtain the data sequence carried by the transmission resource block.

In a possible implementation manner of this embodiment, the transmission resource block may be divided into a plurality of segments by a network device, such as a base station, so that the terminal device may acquire segment information of the transmission resource block from the network device. Wherein the segmentation information may include the number of segments and the amount of data for each segment from the first segment to the last segment. After acquiring the segment information of the transmission resource block, the terminal device may select one or more segments from the multiple segments as a first segment according to the data amount of the encoded data and/or the metadata of the encoded data, and/or in a random manner, and use one or more segments other than the first segment as a second segment for carrying the set data. As a possible implementation manner, the terminal device may determine a candidate segment set according to the data amount of the encoded data to be transmitted, where the candidate segment set includes at least one segment, and the data amount of the segments in the candidate segment set should be greater than the data amount of the encoded data to be transmitted. Thus, a unique segment is mapped according to the metadata of the encoded data and is used as a first segment for carrying the encoded data to be transmitted, and one or more segments except the first segment are used as a second segment for carrying the set data. And the terminal equipment can determine the corresponding data sequence according to the data carried by each segment position of the transmission resource block. Alternatively, the encoded data may be encoded bits, denoted by C, and the set data may be uncertain bits, denoted by X.

In order to clearly illustrate the procedure of dividing the transmission resource block into a plurality of segments by the network device in this embodiment, a schematic diagram of dividing the transmission resource block into a plurality of segments shown in fig. 5 is provided in this embodiment, as shown in fig. 5, the transmission resource block may be divided into N segments by the network device, which are segment 1, segment 2, segment 3 and segment … …, respectively, and the size of each segment may be different, for example, the transmission resource occupied by segment 1 in fig. 5 is significantly larger than that occupied by segment 2.

Step 402, interleaving the data sequence.

In this embodiment, the terminal device may interleave the obtained data sequence.

In one possible implementation manner of this embodiment, the terminal device may use an interleaver to interleave the data sequence, where the size of the interleaver may be the size of the transmission resource block. The data sequence is interleaved here, that is, the coded data and the setting data are interleaved together using an interleaver.

In another possible implementation manner of this embodiment, the terminal device may determine an interleaving manner according to a mapping relationship table between a preset first segmentation position and the interleaving manner, so as to interleave the data sequence according to the determined interleaving manner. Similarly, the data sequence is interleaved here, also for the encoded data and the set data together using a well-defined interleaving pattern.

Step 403, mapping the interleaved data sequence to obtain a modulation symbol.

In this embodiment, after interleaving the data sequence, the terminal device may map the interleaved data sequence, so as to obtain the modulation symbol. As a possible implementation manner, the interleaved data sequences may be grouped according to a preset modulation manner to obtain at least one group, so that mapping is performed on any group according to a preset mapping manner to obtain a corresponding modulation symbol. Optionally, in the case where the encoded data is an encoded bit, denoted by C, the set data is an uncertain bit, denoted by X, the following mapping manner may be adopted to obtain the corresponding modulation symbol:

for packets containing only C bits, mapping can be performed directly; for a packet containing both C bits and X bits, the X bits may be first changed into the same or opposite data as the C bits according to the C bits, for example, assuming that the packet is X0, X0 may be changed into 00, or 10, and mapping is performed; for packets containing only X bits, the X bits may be directly mapped to a set symbol, where the set symbol is used to indicate that no signal is sent on the corresponding resource unit.

And step 404, transmitting a data signal corresponding to the modulation symbol to the network equipment.

In this embodiment, after obtaining the modulation symbol, the terminal device may send a data signal corresponding to the modulation symbol to the network device. Optionally, the terminal device may send the data signal corresponding to the modulation symbol to the corresponding network device by using a network transmission manner.

According to the data transmission method provided by the embodiment of the application, the coded data to be transmitted is loaded at the first segmentation position of the transmission resource block, and the set data is loaded at the second segmentation position except the first segmentation position in the transmission resource block, so that the data sequence loaded by the transmission resource block is obtained, interleaving is realized, the interleaved data sequence is mapped, a modulation symbol is obtained, and a data signal corresponding to the modulation symbol is sent to the network equipment. Therefore, the coding data and the setting data are respectively borne on different segmentation positions of the transmission resource block to obtain a data sequence borne by the transmission resource block, and the whole data sequence is interleaved and mapped to realize the full utilization of space diversity gain, so that the transmission performance is effectively improved, and the performance requirement of a huge number of terminal transmission scenes can be met.

As can be seen from the above analysis, in the embodiment of the present application, mapping is required to be performed on the interleaved data sequence to obtain the modulation symbol. In order to clearly illustrate how the interleaved data sequence is mapped to obtain the modulation symbol in the embodiment of the present application, the present application also provides a data transmission method.

Fig. 6 is a schematic diagram of a data transmission method according to a sixth embodiment of the present application.

As shown in fig. 6, the data transmission method may include the steps of:

in step 601, the coded data to be transmitted is carried at a first segmentation position of the transmission resource block, and the set data is carried at a second segmentation position of the transmission resource block except the first segmentation position, so as to obtain a data sequence carried by the transmission resource block.

Step 602, interleaving a data sequence.

It should be noted that, the execution process of steps 601-602 may refer to the execution process of the same step content in any embodiment of the present application, and the principle is the same, which is not described herein again.

Step 603, grouping the interleaved data sequences according to the modulation scheme.

In this embodiment, the terminal device may group the interleaved data sequence according to the modulation scheme, so as to obtain at least one group. Optionally, in the case where the encoded data is an encoded bit, denoted by C, the set data is an uncertain bit, denoted by X, the following two grouping methods may be adopted to perform grouping to obtain a corresponding grouping:

The first grouping mode is to divide every 2 (QPSK (Quadrature Phase Shift Keying, quadrature phase shift keying)) or 4 (16 QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation)) bits into one group from the start bit in the data sequence, and any bit in the group may belong to either a C bit or an X bit;

the second grouping mode is to divide every 2 (QPSK) or 4 (16 QAM) bits into one group from the start bit in the data sequence, and in the group containing C bits, forward shift the following 1 bit or 3 bits belonging to C bits in order, the forward shift and the backward original position become X bits, and the other C bits and X bits remain unchanged.

In step 604, when the same packet contains encoded data, a modulation scheme is used to map the encoded data to obtain a corresponding modulation symbol.

In this embodiment, in response to the coded data contained in the same packet, the terminal device may map the packet in a modulation manner to obtain a corresponding modulation symbol. It can be understood that the coded data contained in the same packet may be divided into two cases of only the coded data contained in the same packet and both the coded data and the set data contained in the same packet, so that the packet containing the coded data may be mapped by adopting a modulation mode to obtain a corresponding modulation symbol.

Optionally, when the encoded data is encoded bits, denoted by C, the set data is uncertain bits, and denoted by X, the case that encoded data is contained in the same packet is that only C bits are contained in the same packet and both C bits and X bits are contained in the same packet, so that mapping can be directly performed for a packet containing only C bits, and for a packet containing both C bits and X bits, X bits are first changed to data identical to or opposite to C bits according to C bits, for example, assuming that the packet is X0, X0 can be changed to 00, or 10, and mapping is performed.

In step 605, when only the setting data is included in the same packet, the setting data in the packet is directly mapped to the setting symbol.

In this embodiment, in response to the same packet containing only the setting data, the terminal device may directly map the setting data in the packet to the setting symbol. Wherein, the set symbol is used for indicating that no signal is sent on the corresponding resource unit. Optionally, when the encoded data is an encoded bit, denoted by C, the set data is an uncertain bit, and denoted by X, the case where the same packet contains only the set data is the case where the same packet contains only X bits, so that for a packet containing only X bits, the X bits are directly mapped to a set symbol, where the set symbol is used to indicate that no signal is transmitted on the corresponding resource unit.

Step 606, a data signal corresponding to the modulation symbol is sent to the network device.

It should be noted that, the execution of step 606 may refer to the execution of the same step content in any embodiment of the present application, and the principle is the same, which is not described herein.

According to the data transmission method provided by the embodiment of the application, the interleaved data sequences are grouped according to the modulation mode, so that the mapping is performed by adopting the modulation mode when the coded data are contained in the same group, the corresponding modulation symbols are obtained, and the setting data in the group are directly mapped into the setting symbols when the setting data are only contained in the same group. Therefore, by grouping the interleaved data sequences, different types of grouping are mapped in different modes, and corresponding modulation symbols are obtained.

In order to clearly illustrate the above embodiments, another data transmission method is provided in the embodiment of the present application, and fig. 7 is a schematic diagram of the data transmission method provided in the seventh embodiment of the present application.

As shown in fig. 7, the data transmission method may include the steps of:

step 701, receiving indication information sent by a network device.

In this embodiment, the terminal device may receive the indication information sent by the network device. Wherein the indication information is used for indicating a plurality of segments divided by the transmission resource block. Optionally, the terminal device may receive, by using a network transmission manner, indication information sent by the network device and used for indicating a plurality of segments divided by the transmission resource block.

For example, the terminal device may obtain, after receiving the indication information sent by the network device, segmentation information of the following transmission resource blocks: a total of 1092×4=4368 bits, divided into 3 segments, segment one may have 2184 bits, segment two may have 1092 bits, and segment three may have 1092 bits.

Step 702, loading the coded data to be transmitted at a first segmentation position of the transmission resource block, and loading the set data at a second segmentation position of the transmission resource block except the first segmentation position, so as to obtain a data sequence carried by the transmission resource block.

It should be noted that, the execution process of this step may refer to the execution process of the same step content in any embodiment of the present application, and the principle is the same, which is not described herein again.

For example, the terminal device may generate 16 CRC bits from 80 information bits to be transmitted by itself, and the 16 CRC bits are metadata bits. After encoding 80 information bits, 1092 encoded bits, i.e. C bits, may be obtained, so that in the case that the above-mentioned segmentation information is 4368 bits divided into 3 segments, the determined candidate segment set includes a segment two and a segment three, and further, from the candidate segment set, the segment two may be selected according to the metadata bit, e.g. LSB bit of the metadata bit is 0, the segment three may be selected according to LSB bit of the metadata bit is 1, mapped to obtain a unique segment, and the unique segment is used as a first segment for carrying encoded data to be transmitted, and one or more segments other than the first segment are used as a second segment for carrying set data. Alternatively, the third segment may be used as the first segment, and the first segment and the second segment may be used as the second segment, so that 1092 coding bits are put on the third segment, and setting data, that is, the uncertain bit X bits, are put on the first segment and the second segment, so that the terminal device may determine the corresponding data sequence according to the data carried on each segment position of the transmission resource block.

Step 703 interleaves the data sequence.

For example, for the above example, the terminal device may determine an interleaving manner according to the metadata bits and the mapping relationship table between the preset metadata bits and the interleaving manner, and the interleaver has a length of 4368, so that the bits of the transmission resource block size, including the C bits and the X bits, may be interleaved by using the determined interleaving manner, and thus, the C bits may be scattered into 1092 positions among 4368 positions.

Step 704, grouping the interleaved data sequences according to the modulation scheme.

Alternatively, for BPSK modulation, C bits in the interleaved data sequence are grouped into one group for QPSK modulation, every two bits in the interleaved data sequence are grouped into one group for 16QAM modulation, every four bits in the interleaved data sequence are grouped into one group. The grouping operation herein may include a first grouping mode and a second grouping mode. For example, the terminal device may always select the first grouping mode, and group the C bits in the interleaved data sequence according to the preset QPSK modulation. Let the partial bits starting with interleaved C bits (0/1) +X bits (X) be

X0XXX1XXXXXX00X1XXXXXXX0…

Since the first grouping mode is to group every 2 (QPSK) bits together from the start bit, any bit in the group can belong to either a C bit or an X bit, so that the following group can be obtained:

X0 XX X1 XX XX XX 00X1 XX XX XX X…

step 705, determining any one first packet containing encoded data and setting data from the packets, and at least one second packet containing encoded data after the first packet.

In the present embodiment, the terminal device may determine, from among the packets, any one of first packets containing encoded data and setting data, and at least one second packet containing encoded data after the first packet. The number of the second packets may be one or more, which is not limited in this embodiment. The number of encoded data included in the second packet may be one or more, and this is not limited in this embodiment.

For example, for each packet, X0 XX X1 XX 00 XX X …, any one of the first packets containing encoded data and setting data, such as X0 or X1, may be determined, and assuming that the determined first packet is X0, at least one second packet containing encoded data, such as X1, 00, after the first packet may be determined from each packet, and X1 determined here may be X1 of the third packet from the front to the back, or X1 of the eighth packet from the front to the back, which is not limited in this embodiment.

Step 706, deleting the setting data in the first packet, and padding the encoded data in at least one second packet into the first packet.

In this embodiment, after determining any one of the first packets including the encoded data and the setting data and at least one of the second packets including the encoded data corresponding to the first packets, the terminal device may perform the deletion and padding operation, specifically, may delete the setting data in the first packets and pad the encoded data in the at least one of the second packets into the first packets.

For example, in the case where the determined first packet is X0 and the second packet is X1, the setting data of the first packet may be deleted, that is, X may be deleted, and the encoded data in at least one second packet may be padded into the first packet, where 1 may be padded into the first packet since the second packet has only one encoded data, that is, 1, and optionally, after 1 is padded into the first packet, the first packet may be 01 or 10, which is not limited in this embodiment. It should be noted that, when the second packet includes at least two pieces of encoded data, any one piece of encoded data may be selected for padding, which is not limited in this embodiment.

Step 707 modifies the encoded data in the at least one second packet to set data.

In this embodiment, after the first packet is processed, the terminal device may modify the encoded data in at least one second packet to the setting data. For example, in the case where the determined first packet is X0 and the second packet is X1, the encoded data 1 of the second packet may be modified to the setting data X so that the processed second packet is XX.

It will be appreciated that, for each packet obtained after the grouping, the processing of the first packet and the second packet may be performed for any one packet, assuming that the processing manner is from front to back, determining the first packet including the encoded data and the set data as the first packet, and determining the corresponding second packet for the packet, assuming that the manner of determining the second packet is from the first packet, looking for the first packet including at least one encoded data from front to back, and determining it as the second packet, so that the set data in the first packet may be deleted, and the encoded data in at least one second packet may be padded to the back of the encoded data in the first packet, so as to obtain the processed first packet, and the encoded data in the second packet may be modified to the set data, so as to obtain the processed second packet, and after the two packets are processed, repeating from front to back until all the packets are processed in the above manner. This way can be simply understood as that in the combination containing C bits, the following 1 bit belonging to C bits is sequentially shifted forward, the original position after the shift is changed to X bits, and the other C bits and X bits remain unchanged. For example, assuming that each packet obtained after the grouping is X0 XX X1XX 00X1XX XX X …, the following packet can be obtained after processing in the above manner:

01XX XX XX XX XX 00 10XX XX XX XX…

Here, 10 in the packet is a result of processing the first packet X1 when the first packet is X1 and the corresponding second packet is X0 or 0X.

The above-mentioned processing manners of the first packet and the second packet and the manner of determining the second packet are merely examples, and do not limit the present application. Alternatively, the first packet including the encoded data and the setting data may be determined as the first packet from the front to the back, and the corresponding second packet may be determined for the packet, the first packet including the encoded data and the setting data may be determined as the first packet from the back to the front, and the corresponding second packet may be determined for the packet, and the intermediate position may be divided into two groups, optionally, one group may be a front-to-back and/or a back-to-front manner, the first packet including the encoded data and the setting data may be determined as the first packet, and the corresponding second packet may be determined for the packet, and so on, which is not limited in this embodiment. The manner in which the second packet is determined is similar and will not be described in detail here.

In step 708, when the same packet contains encoded data, a modulation scheme is used for mapping to obtain a corresponding modulation symbol.

In step 709, when only the setting data is included in the same packet, the setting data in the packet is directly mapped to the setting symbol.

It should be noted that the execution of steps 708-709 may refer to the execution of the same step content in any embodiment of the present application, and the principle is the same, and will not be described herein.

For example, assuming that the symbol is set to Y, mapping the packet 01XX XX XX XX XX 00 10 XX XX XX XX … can result in the following modulation symbols:

-0.7071+0.7071j Y Y Y Y Y 0.7071+0.7071j 0.7071-0.7071j Y Y Y Y…。

and step 710, transmitting a data signal corresponding to the modulation symbol to the network equipment.

For example, assume that the modulation symbols are-0.7071+0.7071j Y Y Y Y Y0.7071+0.7071j 0.7071-0.7071j Y … so that the terminal device can transmit-0.7071+0.7071 j no-signal-transmit no-signal 0.7071+0.7071j 0.7071-0.7071j no-signal-transmit no-signal … to the network device.

According to the data transmission method provided by the embodiment of the application, by determining any one first packet containing the coded data and the set data and at least one second packet corresponding to the first packet containing the coded data from all the packets, the set data in the first packet is deleted, the coded data in the at least one second packet is filled into the first packet, and the coded data in the at least one second packet is modified into the set data. Therefore, the first packet and the second packet are determined from the packets, and the first packet and the second packet are correspondingly processed, so that the processed packets are mapped, and the corresponding modulation symbols are obtained.

In order to clearly illustrate the foregoing embodiments, the embodiment of the present application further provides a data transmission method, and fig. 8 is a schematic diagram of the data transmission method according to the eighth embodiment of the present application.

As shown in fig. 8, the data transmission method may include the steps of:

step 801, receiving indication information sent by a network device.

Step 802, loading the coded data to be transmitted at a first segmentation position of the transmission resource block, and loading the set data at a second segmentation position of the transmission resource block except the first segmentation position, so as to obtain a data sequence loaded by the transmission resource block.

Step 803, interleaving the data sequence.

Step 804, grouping the interleaved data sequences according to the modulation scheme.

It should be noted that, the execution of steps 801 to 804 may refer to the execution of steps 701 to 704 in the previous embodiment of the present application, and the principle is the same, and will not be described herein again.

Step 805, from the packets, a first packet containing encoded data and setting data is determined.

In the present embodiment, the terminal device may determine a first packet containing encoded data and setting data from among the packets. For example, for each packet being X0 XX X1 XX 00 XX X …, a first packet containing encoded data and setting data, such as X0 or X1, may be determined from each packet. Note that X1 specified here may be X1 of the third packet from the front to the rear, or X1 of the eighth packet from the front to the rear, and is not limited in this embodiment.

Step 806, modifying the setting data according to the encoded data in the first packet.

In this embodiment, after determining the first packet, the terminal device may modify the setting data according to the encoded data in the first packet. Alternatively, the setting data in the first packet may be modified to be the same as the encoded data in the first packet, or the setting data in the first packet may be modified to be result data obtained by performing the setting operation on the encoded data in the first packet, or the setting data in the first packet may be modified according to mapping data corresponding to the encoded data in the first packet in a first mapping table, where the first mapping table is preconfigured and is used to indicate a correspondence between the encoded data and the mapping data corresponding to the encoded data, and this is not limited in this embodiment.

For example, for each packet being X0 XX X1 XX 00 XX X …, it is assumed that the modification is to modify the setting data in the first packet to be the same as the encoded data in the first packet, so that the following packet can be obtained:

00 XX 11 XX XX XX 00 11 XX XX XX X…

in step 807, when the coded data is included in the same packet, mapping is performed by using a modulation scheme to obtain a corresponding modulation symbol.

In step 808, when only the setting data is included in the same packet, the setting data in the packet is directly mapped to the setting symbol.

It should be noted that, the execution process of steps 808-809 may refer to the execution process of the same step content in any embodiment of the present application, and the principle is the same, which is not described herein again.

For example, assuming that the symbol is set to Y, mapping the packet 00XX 11 XX XX XX 00 11 XX XX XX X … can result in the following modulation symbols:

0.7071+0.7071j Y -0.7071-0.7071j Y Y Y 0.7071+0.7071j -0.7071-0.7071j Y Y Y…。

step 809, transmitting a data signal corresponding to the modulation symbol to the network device.

For example, assume that the modulation symbol is 0.7071+0.7071j Y-0.7071-0.7071j Y Y Y0.7071+0.7071j-0.7071-0.7071 j Y Y …, so that the terminal device can transmit 0.7071+0.7071j no-send signal-0.7071-0.7071 j no-send signal 0.7071+0.7071j-0.7071-0.7071j no-send signal … to the network device.

According to the data transmission method provided by the embodiment of the application, the first grouping containing the coded data and the setting data is determined from the groupings, so that the setting data is modified according to the coded data in the first grouping. Thus, the modification processing can be performed on each packet containing the encoded data and the setting data, so that the mapping of each processed packet is realized, and the corresponding modulation symbol is obtained.

It should be noted that, the foregoing embodiments are described from the perspective of the terminal device, in order to more clearly illustrate the data transmission process, the embodiments of the present application provide a possible implementation manner of the data transmission method described from the perspective of the network device, and fig. 9 is a schematic diagram of the data transmission method provided according to the ninth embodiment of the present application.

As shown in fig. 9, the data transmission method may include the steps of:

in step 901, a signal sent by a terminal device is detected to determine a data signal.

In this embodiment, the network device may detect the signal sent by the terminal device, thereby determining the data signal. Alternatively, the signal transmitted by the terminal device may include a preamble signal and a data signal.

Step 902, determining a first segment position for carrying encoded data from a transmission resource block adopted by a terminal device.

In this embodiment, the network device may determine the first segment location for carrying encoded data from the transmission resource blocks employed by the terminal device. As a possible implementation manner, the network device may perform detection and decoding on a preamble signal in a signal sent by the terminal device to obtain corresponding metadata, so as to determine, according to the metadata, a first segment position carrying encoded data from a transmission resource block adopted by the terminal device by traversing the transmission resource block.

In step 903, the position of the modulation symbol is determined from the data signal according to the first segment position and the interleaving mode adopted by the terminal device.

In this embodiment, the network device may determine the position of the modulation symbol from the data signal according to the first segment position and the interleaving manner adopted by the terminal device. As a possible implementation manner, the transmission resource block may be filled with data according to the first segment position to obtain a corresponding data sequence, so that the data sequence is interleaved by adopting an interleaving mode of the terminal device, mapped by adopting a mapping mode of the terminal device, and a position of a modulation symbol is determined from the data signal. The specific implementation manner of the interleaving manner and the mapping manner of the terminal device is not limited, alternatively, the interleaving and mapping manner adopted in the embodiment shown in fig. 6 may be adopted, or the interleaving and mapping manner adopted in the embodiment shown in fig. 7 may also be adopted, which is not limited in this embodiment.

Step 904, performing inverse mapping and de-interleaving on the data signal according to the position of the modulation symbol to determine the encoded data.

In this embodiment, the network device may inverse map and deinterleave the data signal according to the positions of the modulation symbols, thereby determining encoded data. It will be appreciated that the inverse mapping and de-interleaving employed herein should correspond to the mapping and interleaving employed by the terminal device to enable determination of the encoded data by inverse mapping and de-interleaving the data signal.

The data transmission method provided by the embodiment of the application realizes the determination of the first segmentation position carrying the coded data from the transmission resource block adopted by the terminal equipment by detecting the signal sent by the terminal equipment to determine the data signal, thereby determining the position of the modulation symbol from the data signal according to the first segmentation position and the interleaving mode adopted by the terminal equipment, and further carrying out inverse mapping and de-interleaving on the data signal according to the position of the modulation symbol to determine the coded data. Thus, after the network device receives the signal sent by the terminal device, the network device can determine the corresponding coded data by determining the data signal and processing the data signal.

From the above analysis, it can be seen that in the embodiment of the present application, the position of the modulation symbol needs to be determined from the data signal according to the first segment position and the interleaving manner adopted by the terminal device. In order to clearly illustrate how the position of the modulation symbol is determined from the data signal according to the first segment position and the interleaving mode adopted by the terminal device in the embodiment of the present application, the present application also proposes a data transmission method.

Fig. 10 is a schematic diagram of a data transmission method according to a tenth embodiment of the present application.

As shown in fig. 10, the data transmission method may include the steps of:

in step 1001, a signal sent by a terminal device is detected to determine a data signal.

Step 1002, determining a first segment position for carrying encoded data from a transmission resource block employed by a terminal device.

It should be noted that, the execution process of steps 1001 to 1002 may refer to the execution process of the same step content in any embodiment of the present application, and the principle is the same, which is not described herein again.

In step 1003, a first segment in the transmission resource block is filled with first data, and a second segment other than the first segment is filled with second data, so as to obtain a first data sequence.

In this embodiment, since the first segment position for carrying the encoded data has been determined from the transmission resource block adopted by the terminal device, the first segment in the transmission resource block may be filled with the first data, and the second segment other than the first segment may be filled with the second data, so as to obtain the first data sequence.

Step 1004, interleaving the first data sequence by using an interleaving mode of the terminal equipment, and mapping by using a modulation mode of the terminal equipment.

In this embodiment, after obtaining the first data sequence, the network device may interleave the first data sequence by using an interleaving manner of the terminal device, and map the first data sequence by using a modulation manner of the terminal device.

In step 1005, the position of the modulation symbol in the data signal is determined according to the position of the modulated first data.

It can be understood that, because the first data sequence adopts the interleaving mode and the mapping mode of the terminal device, the position of the modulation symbol in the data signal can be determined according to the position of the modulated first data.

Step 1006, inversely mapping and de-interleaving the data signal according to the position of the modulation symbol to determine the encoded data.

According to the data transmission method provided by the embodiment of the application, the first data is filled in the first section in the transmission resource block, the second data is filled in the second section except the first section, so that the first data sequence is obtained, the interleaving mode of the terminal equipment is adopted for the first data sequence, the mapping is carried out by adopting the modulation mode of the terminal equipment, and therefore, the position of the modulation symbol in the data signal is determined according to the position of the modulated first data. Therefore, the first data sequence is processed by adopting an interleaving mode and a mapping mode of the terminal equipment, so that the position of the modulation symbol in the data signal can be determined.

As can be seen from the above analysis, in the embodiment of the present application, the first data sequence needs to be mapped by using a modulation mode of the terminal device. In order to clearly illustrate how the first data sequence is mapped by adopting the modulation mode of the terminal equipment in the embodiment of the application, the application also provides a data transmission method.

Fig. 11 is a schematic diagram of a data transmission method according to an eleventh embodiment of the present application.

As shown in fig. 11, the data transmission method may include the steps of:

step 1101, detecting a signal sent by the terminal device to determine a data signal.

Step 1102, determining a first segment position for carrying encoded data from a transmission resource block adopted by a terminal device.

In step 1103, a first segment in the transmission resource block is filled with first data, and a second segment other than the first segment is filled with second data, so as to obtain a first data sequence.

It should be noted that, the execution process of steps 1101-1103 may refer to the execution process of the same step content in any embodiment of the present application, and the principle is the same, which is not repeated here.

Step 1104, interleaving the first data sequence by using an interleaving mode of the terminal device.

In this embodiment, after obtaining the first data sequence, the network device may interleave the first data sequence in an interleaving manner of the terminal device.

Step 1105, grouping the interleaved first data sequence according to the modulation scheme.

In this embodiment, after the first data sequence is interleaved by using the interleaving manner of the terminal device, the interleaved first data sequence may be grouped according to the modulation manner. The grouping may be performed in a manner consistent with the grouping employed by the terminal device.

In step 1106, when the first data is included in the same packet, mapping is performed using a modulation scheme.

In this embodiment, in response to the first data being contained within the same packet, the network device may map the packet in a modulated manner. It is understood that the inclusion of encoded data within the same packet may be divided into the case of inclusion of only first data within the same packet and the case of inclusion of both first and second data within the same packet.

In step 1107, when only the second data is included in the same packet, the second data in the packet is directly mapped to the set symbol.

In this embodiment, in response to only the second data being contained within the same packet, the network device may directly map the second data within the packet to the set symbol. Wherein, the set symbol is used for indicating that no signal is sent on the corresponding resource unit.

In step 1108, the position of the modulation symbol in the data signal is determined according to the position of the modulated first data.

In step 1109, the data signal is inverse mapped and deinterleaved according to the position of the modulation symbol to determine encoded data.

It should be noted that the execution of steps 1108-1109 may refer to the execution of the same step content in any embodiment of the present application, and the principle is the same, which is not repeated here.

According to the data transmission method provided by the embodiment of the application, the first data sequence is interleaved by adopting the interleaving mode of the terminal equipment, so that the interleaved first data sequence is grouped according to the modulation mode, and therefore, when the first data is contained in the same group, the first data is mapped by adopting the modulation mode, and when the second data is only contained in the same group, the second data in the group is directly mapped into the set symbol. Therefore, the first data sequence can be mapped by adopting the modulation mode of the terminal equipment.

In order to clearly illustrate the foregoing embodiments, the present application also provides a data transmission method, and fig. 12 is a schematic diagram of the data transmission method according to the twelfth embodiment of the present application.

As shown in fig. 12, the data transmission method may include the steps of:

step 1201, sending indication information to a terminal device.

In this embodiment, the network device may send the indication information to the terminal device. Wherein the indication information is used for indicating a plurality of segments divided by the transmission resource block. Alternatively, the terminal device may send, to the terminal device by means of network transmission, indication information for indicating a plurality of segments divided by the transmission resource block.

For example, the network device may send the following indication information to the terminal device:

a total of 1092×4=4368 bits, divided into 3 segments, segment one may have 2184 bits, segment two may have 1092 bits, and segment three may have 1092 bits.

Step 1202, detecting a signal sent by a terminal device to determine a data signal.

As a possible implementation manner, the network device may perform detection decoding on the preamble signal sent by the terminal device, so as to obtain metadata bits, that is, 16 CRC bits, of at least one user, and detect the data signal sent by the terminal device, so as to obtain a received signal in the transmission resource block. For example, for QPSK digital modulation symbols, the transmission resource block has 4368 bits in total, 2184 QPSK digital modulation symbols, so that the resulting data signal may be r0, r1, …, r2183.

Step 1203, determining a first segment position for carrying encoded data from a transmission resource block adopted by the terminal device.

For example, the first segment position carrying encoded data may be determined from the transmission resource blocks employed by the terminal device by traversing the transmission resource blocks, i.e. traversing segment one, segment two and segment three, based on the metadata bits of any user, i.e. the 16 CRC bits.

In step 1204, a first segment of the transmission resource block is filled with first data, and a second segment other than the first segment is filled with second data to obtain a first data sequence.

Step 1205, interleaving the first data sequence by using an interleaving mode of the terminal device.

Step 1206, grouping the interleaved first data sequence according to the modulation scheme.

It should be noted that the execution process of steps 1204-1205 may refer to the execution process of the same step content in any embodiment of the present application, and the principle is the same, and will not be described herein again.

Step 1207, determining any one first packet containing the first data and the second data from the packets, and at least one second packet containing the first data after the first packet.

In this embodiment, the network device may determine, from among the packets, any one of the first packets containing the first data and the second data, and at least one of the second packets containing the first data after the first packet. The number of the second packets may be one or more, which is not limited in this embodiment. The number of the first data included in the second packet may be one or more, and this is not limited in this embodiment.

Step 1208, deleting the second data in the first packet and padding the first data in the at least one second packet into the first packet.

In this embodiment, after determining any one of the first packets including the first data and the second data and at least one of the second packets including the first data corresponding to the first packets, the network device may perform a delete and fill operation, specifically, may delete the second data in the first packets and fill the first data in the at least one second packet into the first packets.

Step 1209, modifying the first data in the at least one second packet to second data.

In this embodiment, the network device may modify the first data in the at least one second packet into the setting data after processing the first packet.

In step 1210, when the first data is included in the same packet, mapping is performed using a modulation scheme.

In step 1211, in the case where only the second data is included in the same packet, the second data in the packet is directly mapped to the set symbol.

It should be noted that, the execution of steps 1210-1211 may refer to the execution of the same step content in any embodiment of the present application, and the principle is the same, which is not described herein again.

Step 1212, inverse mapping the positions of the corresponding modulation symbols in the data signal to obtain a second data sequence.

In this embodiment, the network device may inversely map the position of the corresponding modulation symbol in the data signal, thereby obtaining the second data sequence. For example, assume that the positions of the corresponding modulation symbols in the data signal are first, seventh, and eighth, so that in the case of the data signal being r0, r1, …, r2183, the following second data sequence can be obtained:

r0，r6，r7，…。

step 1213, replacing the corresponding first data in the interleaved first data sequence according to the demodulated data in the second data sequence, so as to obtain a third data sequence.

In this embodiment, the network device may replace the corresponding first data in the interleaved first data sequence according to the demodulated data in the second data sequence, so as to obtain the third data sequence. For example, assuming that the demodulated data in the second data sequence is b00, b01, b60, b61, b70, b71, …, the following third data sequence can be obtained:

X b00 XX X b01 XX XX XX b60 b61 X b70 XX XX XX X b71…。

step 1214, de-interleaving the third data sequence according to the interleaving manner adopted by the terminal device, so as to use the demodulated data in the de-interleaved third data sequence as the encoded data of the terminal device.

In this embodiment, the network device may deinterleave the third data sequence according to an interleaving manner adopted by the terminal device, so as to use demodulated data in the deinterleaved third data sequence as encoded data of the terminal device.

According to the data transmission method provided by the embodiment of the application, through determining any one first packet containing first data and second data and at least one second packet containing the first data corresponding to the first packet from each packet, deleting the second data in the first packet, filling the first data in at least one second packet into the first packet, modifying the first data in at least one second packet into the second data, mapping in a modulation mode under the condition that the same packet contains the first data, mapping the second data in the packet into set symbols under the condition that the same packet contains only the second data, inversely mapping the position of the corresponding modulation symbol in a data signal to obtain a second data sequence, replacing the corresponding first data in the interleaved first data sequence according to the demodulated data in the second data sequence to obtain a third data sequence, and further de-interleaving the third data sequence according to the mode adopted by a terminal device, so as to take the interleaved data in the de-demodulated third data sequence as the data of the terminal device. Thus, the network device can process the received signals and determine the coded data of the terminal device.

In order to clearly illustrate the foregoing embodiments, the present application also provides a data transmission method, and fig. 13 is a schematic diagram of the data transmission method according to the thirteenth embodiment of the present application.

As shown in fig. 13, the data transmission method may include the steps of:

step 1301, sending indication information to a terminal device.

In step 1302, a signal sent by the terminal device is detected to determine a data signal.

In step 1303, a first segment position for carrying encoded data is determined from the transmission resource blocks employed by the terminal device.

In step 1304, a first segment of the transmission resource block is filled with first data, and a second segment other than the first segment is filled with second data to obtain a first data sequence.

In step 1305, the first data sequence is interleaved by using an interleaving mode of the terminal device.

Step 1306, grouping the interleaved first data sequence according to the modulation scheme.

It should be noted that, the execution of steps 1301-1306 can be referred to the execution of steps 1201-1206 in the previous embodiment of the present application, and the principle is the same, and will not be described herein again.

Step 1307, from each packet, a first packet containing first data and second data is determined.

In this embodiment, the network device may determine, from among the packets, a first packet containing the first data and the second data.

Step 1308, the second data is modified according to the first data in the first packet.

In this embodiment, after determining the first packet, the terminal device may modify the second data according to the first data in the first packet. Alternatively, the second data in the first packet may be modified to be the same as the first data in the first packet, or the second data in the first packet may be modified to be result data obtained by performing a setting operation on the first data in the first packet, or the second data in the first packet may be modified according to mapping data corresponding to the first data in the first packet in the second mapping table, where the second mapping table is preconfigured to indicate a correspondence between the first data and the mapping data corresponding to the first data, which is not limited in this embodiment.

In step 1309, when the first data is included in the same packet, mapping is performed by using a modulation scheme.

In step 1310, in the case where only the second data is included in the same packet, the second data in the packet is directly mapped to the set symbol.

Step 1311, inversely mapping the positions of the corresponding modulation symbols in the data signal to obtain a second data sequence.

It should be noted that, the execution of steps 1309-1311 can be referred to as the execution of steps 1211-1212 in the previous embodiment of the present application, and the principle is the same, which is not repeated here.

Step 1312, grouping the second data sequence according to the demodulation mode.

In this embodiment, the network device may group the second data sequence according to the demodulation manner. Wherein each packet in the second data sequence corresponds to a packet containing the first data in the first data sequence after interleaving one by one.

Step 1313, replacing the data of the corresponding packet in the interleaved first data sequence according to the demodulated data in each packet in the second data sequence, and generating a fourth data sequence.

In this embodiment, the network device may replace data of a corresponding packet in the interleaved first data sequence according to the demodulated data in each packet of the second data sequence, to generate the fourth data sequence. As a possible implementation manner, for any packet in the first data sequence after interleaving, if the number of the first data contained in the packet is the same as the number of the demodulation data of the corresponding packet in the second data sequence, the demodulation data is adopted to replace the first data correspondingly. And combining the demodulation data of the corresponding packet in the second data sequence and adopting the combined demodulation data to correspondingly replace the first data under the condition that the number of the first data is less than the number of the demodulation data of the corresponding packet in the second data sequence. Wherein the number of the combined demodulation data is the same as the number of the replaced first data.

For example, let the demodulated data in the second data sequence be b00, b01, b20, b21, b40, b41, b50, b51, …, whereby the following fourth data sequence can be obtained:

X(b00+b01)XX X(b20+b21)XX XX XX b40 b41 X(b50+b51)XX XX XX XX…。

in step 1314, the fourth data sequence is deinterleaved according to the interleaving manner adopted by the terminal device, so as to use the demodulated data in the deinterleaved fourth data sequence as the encoded data of the terminal device.

In this embodiment, the network device may deinterleave the fourth data sequence according to an interleaving manner adopted by the terminal device, so as to use demodulated data in the deinterleaved fourth data sequence as encoded data of the terminal device.

According to the data transmission method provided by the embodiment of the application, the first grouping containing the first data and the second data is determined from the groupings, the second data is modified according to the first data in the first grouping, the positions of the corresponding modulation symbols in the data signals are inversely mapped to obtain the second data sequence, the second data sequence is grouped according to the demodulation mode, the data of the corresponding grouping in the first data sequence after interleaving is replaced according to the demodulation data in each grouping of the second data sequence, the fourth data sequence is generated, and then the fourth data sequence is deinterleaved according to the interleaving mode adopted by the terminal equipment, so that the demodulated data in the fourth data sequence after deinterleaving is used as the coded data of the terminal equipment. Thus, the network device can process the received signals and determine the coded data of the terminal device.

In order to achieve the above embodiment, the present application further provides a data transmission device.

Fig. 14 is a schematic structural diagram of a data transmission device according to a fourteenth embodiment of the present application.

As shown in fig. 14, the data transmission apparatus may include a memory 1410, a transceiver 1420, and a processor 1430.

Wherein the memory 1410 is used for storing a computer program; a transceiver 1420 for transceiving data under control of the processor; a processor 1430 for reading the computer program in the memory and performing the operations of:

the method comprises the steps of loading coded data to be transmitted at a first segmentation position of a transmission resource block, and loading set data at a second segmentation position except the first segmentation position in the transmission resource block so as to obtain a data sequence loaded by the transmission resource block;

interleaving the data sequence;

mapping the interleaved data sequence to obtain a modulation symbol;

and transmitting the data signal corresponding to the modulation symbol to the network equipment.

A transceiver 1420 for receiving and transmitting data under the control of a processor 1430.

Where in FIG. 14, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, as represented by processor 1430, and the memory, as represented by memory 1410, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1420 may be a number of elements, i.e., include a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 1430 is responsible for managing the bus architecture and general processing, and the memory 1410 may store data used by the processor 1430 in performing operations.

Where in FIG. 14, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, as represented by processor 1430, and the memory, as represented by memory 1410, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1420 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, and the like. The user interface 1440 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1430 is responsible for managing the bus architecture and general processing, and the memory 1410 may store data used by the processor 1430 in performing operations.

Alternatively, the processor 1430 may be a central processing unit (Central Processing Unit, CPU), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or complex programmable logic device (Complex Programmable Logic Device, CPLD), and the processor may also employ a multi-core architecture.

The processor is operable to perform any of the methods provided by embodiments of the present application in accordance with the obtained executable instructions by invoking a computer program stored in a memory. The processor and the memory may also be physically separate.

As a possible implementation manner of the embodiment of the present application, mapping the interleaved data sequence to obtain a modulation symbol includes:

grouping the interleaved data sequences according to the modulation mode;

under the condition that the same group contains coded data, mapping is carried out by adopting a modulation mode so as to obtain a corresponding modulation symbol;

when the same group only contains the setting data, the setting data in the group is directly mapped into the setting symbol; wherein, the set symbol is used for indicating that no signal is sent on the corresponding resource unit.

As a possible implementation manner of the embodiment of the present application, after grouping the interleaved data sequences according to the modulation mode, the method further includes:

determining, from the respective packets, a first packet including the encoded data and the setting data, and at least one second packet including the encoded data after the first packet;

deleting the setting data in the first packet and filling the coding data in at least one second packet into the first packet; the method comprises the steps of,

The encoded data in the at least one second packet is modified to the setting data.

determining a first packet containing encoded data and setting data from the packets;

the setting data is modified according to the encoded data in the first packet.

As one possible implementation manner of the embodiment of the present application, modifying the setting data according to the encoded data in the first packet includes:

modifying the setting data in the first packet to be identical to the encoded data in the first packet;

or, modifying the setting data in the first group into the result data obtained by setting operation of the coding data in the first group;

or modifying the setting data in the first group according to the mapping data corresponding to the coding data of the first group in the first mapping table; the first mapping table is preconfigured and used for indicating the corresponding relation between the coded data and the mapping data corresponding to the coded data.

As one possible implementation manner of the embodiment of the present application, the first segment is a candidate segment having a size matching the data amount of the encoded data and/or corresponding to metadata of the encoded data, among the multiple segments divided by the transmission resource block.

As one possible implementation of an embodiment of the present application, processor 1430 is further configured to:

It should be noted that, the data transmission device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiments of fig. 4 to 8, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiments in this embodiment are omitted.

Fig. 15 is a schematic structural diagram of a data transmission device according to a fifteenth embodiment of the present application.

As shown in fig. 15, the data transmission apparatus may include a memory 1510, a transceiver 1520, and a processor 1530.

Wherein the memory 1510 is used for storing a computer program; a transceiver 1520 for transceiving data under the control of the processor; a processor 1530 for reading the computer program in the memory and performing the following operations:

detecting signals sent by terminal equipment to determine data signals;

the data signal is inverse mapped and deinterleaved according to the locations of the modulation symbols to determine encoded data.

A transceiver 1520 for receiving and transmitting data under the control of the processor 1530.

Wherein in fig. 15, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 1530 and various circuits of memory represented by memory 1510, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1520 may be a number of elements, i.e., include a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, and the like. The processor 1530 is responsible for managing the bus architecture and general processing, and the memory 1510 may store data used by the processor 1530 in performing operations.

The processor 1530 may be a central processing unit (Central Processing Unit, CPU), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or complex programmable logic device (Complex Programmable Logic Device, CPLD), or the processor may employ a multi-core architecture.

As a possible implementation manner of the embodiment of the present application, determining, according to the first segment position and an interleaving manner adopted by the terminal device, a position of a modulation symbol from a data signal includes:

filling a first segment in a transmission resource block with first data, and filling a second segment except the first segment with second data to obtain a first data sequence;

interleaving the first data sequence by adopting an interleaving mode of terminal equipment, and mapping by adopting a modulation mode of the terminal equipment;

and determining the position of a modulation symbol in the data signal according to the position of the modulated first data.

As a possible implementation manner of the embodiment of the present application, mapping by using a modulation manner of a terminal device includes:

Under the condition that the same group contains first data, mapping is carried out by adopting a modulation mode;

in the case where only the second data is contained in the same packet, the second data in the packet is directly mapped to the set symbol.

As a possible implementation manner of the embodiment of the present application, after grouping the interleaved first data sequence according to the modulation mode, the method further includes:

determining any one first packet containing first data and second data from the packets, and at least one second packet containing the first data after the first packet;

deleting the second data in the first packet, and filling the first data in at least one second packet into the first packet; the method comprises the steps of,

the first data in the at least one second packet is modified to second data.

As one possible implementation manner of the embodiment of the present application, performing inverse mapping and de-interleaving on a data signal according to a position of a modulation symbol to determine encoded data includes:

inversely mapping the position of the corresponding modulation symbol in the data signal to obtain a second data sequence;

according to the demodulation data in the second data sequence, replacing the corresponding first data in the interleaved first data sequence to obtain a third data sequence;

determining a first packet containing first data and second data from the packets;

the second data is modified based on the first data in the first packet.

As one possible implementation manner of the embodiment of the present application, modifying the second data according to the first data in the first packet includes:

modifying the second data in the first packet to be the same as the first data in the first packet;

or modifying the second data in the first group into the result data obtained by performing setting operation on the first data in the first group;

or modifying the second data in the first packet according to the mapping data corresponding to the first data in the first packet in the second mapping table; the second mapping table is preconfigured and is used for indicating the corresponding relation between the first data and the mapping data corresponding to the first data.

grouping the second data sequence according to the demodulation mode; wherein each packet in the second data sequence corresponds to a packet containing first data in the first data sequence after interleaving one by one;

according to the demodulation data in each packet of the second data sequence, replacing the data of the corresponding packet in the interleaved first data sequence to generate a fourth data sequence;

and de-interleaving the fourth data sequence according to an interleaving mode adopted by the terminal equipment, so that the demodulated data in the de-interleaved fourth data sequence is used as coded data of the terminal equipment.

As a possible implementation manner of the embodiment of the present application, according to the demodulated data in each packet of the second data sequence, replacing the data of the corresponding packet in the interleaved first data sequence, to generate a fourth data sequence, including:

for any packet in the first data sequence after interleaving, under the condition that the number of the contained first data is the same as the number of the demodulation data of the corresponding packet in the second data sequence, adopting the demodulation data to correspondingly replace the first data;

Combining the demodulated data of the corresponding packet in the second data sequence if the number of the first data included is less than the number of the demodulated data of the corresponding packet in the second data sequence; correspondingly replacing the first data by adopting the combined demodulation data; wherein the number of the combined demodulation data is the same as the number of the replaced first data.

As one possible implementation of an embodiment of the present application, processor 1530 is further configured to perform the following operations:

It should be noted that, the data transmission device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiments of fig. 9 to 13, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiments in this embodiment are omitted.

The present application also provides a data transmission device corresponding to the data transmission method provided by the embodiments of fig. 4 to 8, and since the data transmission device provided by the embodiments of the present application corresponds to the data transmission method provided by the embodiments of fig. 4 to 8, the implementation of the data transmission method is also applicable to the data transmission device provided by the embodiments of the present application, and will not be described in detail in the embodiments of the present application.

Fig. 16 is a schematic structural diagram of a data transmission device according to a sixteenth embodiment of the present application.

As shown in fig. 16, the data transmission apparatus 1600 includes: a determining unit 1610, an interleaving unit 1620, a modulating unit 1630 and a transmitting unit 1640.

A determining unit 1610, configured to carry coded data to be transmitted at a first segmentation position of a transmission resource block, and carry setting data at a second segmentation position of the transmission resource block except for the first segmentation position, so as to obtain a data sequence carried by the transmission resource block;

an interleaving unit 1620 for interleaving the data sequence;

a modulation unit 1630, configured to map the interleaved data sequence to obtain a modulation symbol;

a first transmitting unit 1640, configured to transmit a data signal corresponding to the modulation symbol to a network device.

Optionally, in a possible implementation manner of the embodiment of the present application, the modulating unit 1630 includes:

the first grouping module is used for grouping the interleaved data sequences according to the modulation mode;

the first mapping module is used for mapping in a modulation mode under the condition that the same packet contains coded data so as to obtain a corresponding modulation symbol;

The second mapping module is used for directly mapping the setting data in the group into the setting symbol under the condition that the same group only contains the setting data; wherein, the set symbol is used for indicating that no signal is sent on the corresponding resource unit.

As a possible implementation manner of the embodiment of the present application, the modulation unit 1630 further includes:

a first determining module for determining, from among the packets, any one of a first packet containing encoded data and setting data, and at least one second packet containing encoded data after the first packet;

the deleting module is used for deleting the setting data in the first packet and filling the coding data in at least one second packet into the first packet; the method comprises the steps of,

and the first modification module is used for modifying the coded data in at least one second packet into setting data.

a second determination module for determining a first packet containing encoded data and setting data from the packets;

and the second modification module is used for modifying the setting data according to the encoded data in the first packet.

As a possible implementation manner of the embodiment of the present application, the second modification module is further configured to:

or modifying the setting data in the first group according to the mapping data corresponding to the coding data of the first group in the first mapping table; the first mapping table is preconfigured and used for indicating the corresponding relation between the coded data and the mapping data.

As a possible implementation manner of the embodiment of the present application, the data transmission device may further include:

and the receiving unit is used for receiving the indication information sent by the network equipment, wherein the indication information is used for indicating a plurality of segments divided by the transmission resource block.

The present application also provides a data transmission device corresponding to the data transmission method provided by the embodiments of fig. 9 to 13, and since the data transmission device provided by the embodiments of the present application corresponds to the data transmission method provided by the embodiments of fig. 9 to 13, the implementation of the data transmission method is also applicable to the data transmission device provided by the embodiments of the present application, and will not be described in detail in the embodiments of the present application.

As shown in fig. 17, the data transmission apparatus 1700 includes: a detection unit 1710, a first position determination unit 1720, a second position determination unit 1730, and a processing unit 1740.

A detecting unit 1710, configured to detect a signal sent by the terminal device, so as to determine a data signal;

a first location determining unit 1720, configured to determine a first segment location for carrying encoded data from a transmission resource block employed by the terminal device;

a second position determining unit 1730, configured to determine a position of the modulation symbol from the data signal according to the first segment position and an interleaving manner adopted by the terminal device;

a processing unit 1740 for performing inverse mapping and de-interleaving on the data signal according to the position of the modulation symbols to determine the encoded data.

Optionally, in a possible implementation manner of the embodiment of the present application, the second position determining unit 1730 includes:

a filling module, configured to fill a first segment in a transmission resource block with first data, and fill a second segment except for the first segment with second data, so as to obtain a first data sequence;

the processing module is used for interleaving the first data sequence by adopting an interleaving mode of the terminal equipment and mapping by adopting a modulation mode of the terminal equipment;

and the position determining module is used for determining the position of the modulation symbol in the data signal according to the position of the modulated first data.

As a possible implementation manner of the embodiment of the present application, the processing module is further configured to:

the first data in the at least one second packet is modified to second data.

As one possible implementation of an embodiment of the present application, the processing unit 1740 includes:

the first inverse mapping module is used for inversely mapping the position of the corresponding modulation symbol in the data signal to obtain a second data sequence;

the first replacing module is used for replacing corresponding first data in the interleaved first data sequence according to the demodulated data in the second data sequence so as to obtain a third data sequence;

the first interleaving module is used for de-interleaving the third data sequence according to an interleaving mode adopted by the terminal equipment, so that demodulated data in the de-interleaved third data sequence is used as coded data of the terminal equipment.

the second data is modified based on the first data in the first packet.

the second inverse mapping module is used for inversely mapping the position of the corresponding modulation symbol in the data signal to obtain a second data sequence;

the second grouping module is used for grouping the second data sequence according to the demodulation mode; wherein each packet in the second data sequence corresponds to a packet containing first data in the first data sequence after interleaving one by one;

the second replacing module is used for replacing data of a corresponding packet in the first data sequence after interleaving according to the demodulation data in each packet of the second data sequence to generate a fourth data sequence;

And the second interleaving module is used for de-interleaving the fourth data sequence according to an interleaving mode adopted by the terminal equipment so as to take the demodulated data in the de-interleaved fourth data sequence as the coded data of the terminal equipment.

As a possible implementation manner of the embodiment of the present application, the second replacing module is further configured to:

and a second transmitting unit configured to transmit, to the terminal device, indication information, where the indication information is used to indicate a plurality of segments divided by the transmission resource block.

It should be noted that, the data transmission device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiments of fig. 4 to fig. 7, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiments in this embodiment are omitted.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

To achieve the above embodiments, the present application also proposes a processor-readable storage medium. The processor-readable storage medium stores a computer program for causing the processor to execute the data transmission method of any one of the embodiments of fig. 4 to 12 of the present application.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A data transmission method, the method being performed by a terminal device, the method comprising:

Interleaving the data sequence;

mapping the interleaved data sequence to obtain a modulation symbol;

2. The method of claim 1, wherein mapping the interleaved data sequence to obtain modulation symbols comprises:

grouping the interleaved data sequences according to a modulation mode;

3. The method of claim 2, wherein after grouping the interleaved data sequence according to a modulation scheme, further comprising:

4. The method of claim 2, wherein after grouping the interleaved data sequence according to a modulation scheme, further comprising:

modifying the setting data according to the encoded data in the first packet.

5. The method of claim 4, wherein said modifying said setting data based on said encoded data in said first packet comprises:

6. The method according to any one of claims 1 to 5, wherein,

the first segment is a candidate segment of a plurality of segments divided by the transmission resource block, the size of the candidate segment matches the data amount of the encoded data, and/or the candidate segment corresponds to metadata of the encoded data.

7. The method according to any one of claims 1-5, further comprising:

8. A method of data transmission, the method performed by a network device, the method comprising:

detecting signals sent by terminal equipment to determine data signals;

9. The method of claim 8, wherein the determining the position of the modulation symbol from the data signal according to the first segment position and the interleaving manner adopted by the terminal device comprises:

10. The method of claim 9, wherein the mapping using the modulation scheme of the terminal device comprises:

in the case where only the second data is contained in the same packet, the second data in the packet is directly mapped to a set symbol.

11. The method of claim 10, wherein after grouping the interleaved first data sequence according to the modulation scheme, further comprising:

modifying first data in the at least one second packet to the second data.

12. The method of claim 11, wherein said inversely mapping and de-interleaving the data signal based on the position of the modulation symbols to determine encoded data comprises:

13. The method of claim 10, wherein after grouping the interleaved first data sequence according to a modulation scheme, further comprising:

Modifying the second data according to the first data in the first packet.

14. The method of claim 13, wherein said modifying said second data based on said first data in said first packet comprises:

15. The method of claim 13, wherein said inversely mapping and de-interleaving the data signal based on the position of the modulation symbols to determine encoded data comprises:

16. The method of claim 15, wherein the replacing data of the corresponding packet in the interleaved first data sequence according to the demodulated data in each packet in the second data sequence to generate a fourth data sequence comprises:

17. The method according to any one of claims 8-16, further comprising:

18. A data transmission device, comprising a memory, a transceiver, and a processor:

interleaving the data sequence;

mapping the interleaved data sequence to obtain a modulation symbol;

19. A data transmission device, comprising a memory, a transceiver, and a processor:

Detecting signals sent by terminal equipment to determine data signals;

20. A data transmission apparatus, comprising:

an interleaving unit, configured to interleave the data sequence;

21. A data transmission apparatus, comprising:

22. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1-7 or to perform the method of any one of claims 8-17.