CN106936545B

CN106936545B - Data transmission method and device

Info

Publication number: CN106936545B
Application number: CN201710184106.5A
Authority: CN
Inventors: 张伟; 李明菊; 张云飞
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2020-09-11
Anticipated expiration: 2037-03-24
Also published as: CN106936545A

Abstract

A data transmission method and device, the method includes: receiving a first data block and a second data block from the same user equipment, wherein the first data block is a retransmitted data block, and the second data block is a newly transmitted data block; multiplexing the first data block and the second data block on a bit level to obtain a synthesized data block; and transmitting the synthesized data blocks in the same transmission time interval TTI. The invention also provides a data transmission device. The invention can simultaneously support the transmission of two different types of data blocks in the same TTI, thereby reducing the transmission delay of the system.

Description

Data transmission method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus.

Background

In the conventional communication system, only one type of data block (a newly transmitted data block or a retransmitted data block) is transmitted in a given Transmission Time Interval (TTI). For example, a retransmitted data block after a coding process is transmitted in TTI # n, while a newly transmitted data block after a coding process is transmitted in TTI # (n + m), m usually not equal to 0. In the existing transmission scheme, only one type of data block needs to be processed by the transmitter and the receiver in each TTI, so that the processing complexity of the transmitter and the receiver can be reduced.

However, for a future 5G (5th-Generation, fifth Generation mobile Communication Technology) NR (New radio access Technology) system, the 5G NR system supports short delay services such as eMBB (enhanced mobile broadband), URLLC (Ultra Reliable and Low delay Communication), and the like, which have high requirements on transmission delay. Although the existing transmission scheme can reduce the processing complexity of the transmitter and the receiver, the transmission delay of the system is prolonged, for example, in order to support newly transmitted data blocks, the retransmitted data blocks cannot be transmitted in time within certain TTIs, which results in lower efficiency of the transmission of the retransmitted data blocks.

It can be seen that, in the existing communication method, because the retransmitted data block and the newly transmitted data block cannot be simultaneously supported to be transmitted in the same TTI, there is no obvious advantage in processing the short delay services such as eMBB and URLLC facing to 5G in the future. How to simultaneously support the transmission of retransmitted data blocks and newly transmitted data blocks in the same TTI to reduce the transmission delay of the system is an urgent technical problem to be solved.

Disclosure of Invention

In view of the above, it is necessary to provide a data transmission method and apparatus, which can simultaneously support two different types of data blocks to be transmitted in the same TTI, and reduce the transmission delay of the system.

A data transmission method applied in a transmitter, the method comprising: receiving a first data block and a second data block from the same user equipment, wherein the first data block is a retransmitted data block, and the second data block is a newly transmitted data block; multiplexing the first data block and the second data block on a bit level to obtain a synthesized data block; and transmitting the synthesized data blocks in the same transmission time interval TTI.

According to a preferred embodiment of the present invention, the performing data multiplexing on the first data block and the second data block at a bit level to obtain a composite data block includes:

the first data block and the second data block are subjected to cascade processing on a bit level to obtain a first data bit block;

sequentially adding a transmission block cyclic redundancy check (TB) CRC, coding block partitioning and adding a coding block cyclic redundancy check (CB CRC) to the first data bit block to obtain a second data bit block;

processing the second data bit block to obtain a synthesized data block;

wherein the first data block is any one of the following: the system comprises a retransmitted transmission block TB, a retransmitted coding block CB or a retransmitted coding block group CBG from the same TB, wherein the CBG consists of a plurality of CBs; the second data block is a newly transmitted TB.

adding a first transport block cyclic redundancy check (TB) CRC on a bit level to the first data block to obtain a third data bit block, and adding a second TB CRC on a bit level to the second data block to obtain a fourth data bit block;

performing cascade processing on the third data bit block and the fourth data bit block;

sequentially carrying out coding block partitioning processing and Coding Block Cyclic Redundancy Check (CBCRC) adding processing on the cascaded data bit blocks;

processing the data bit block added with the CB CRC to obtain a synthetic data block;

sequentially performing addition processing of a third transmission block cyclic redundancy check (TB) CRC, coding block partitioning processing and addition processing of a third coding block cyclic redundancy check (CB CRC) on a bit level on the first data block to obtain a fifth data bit block;

sequentially performing fourth TBCR addition processing, coding block partitioning processing and fourth CB CRC addition processing on the second data block at a bit level to obtain a sixth data bit block;

performing cascade processing on the fifth data bit block and the sixth data bit block;

processing the cascaded data bit blocks to obtain a synthesized data block;

A data transmission method applied in a receiver, the method comprising: receiving a composite data block transmitted in the same transmission time interval TTI; and performing data demultiplexing on the synthesized data block to obtain a first data block and a second data block, wherein the first data block is a retransmitted data block, the second data block is a newly transmitted data block, and the first data block and the second data block are both from the same user equipment.

According to a preferred embodiment of the present invention, the performing data demultiplexing processing on the synthesized data block to obtain a first data block and a second data block includes:

processing the synthesized data block to obtain a second data bit block;

sequentially carrying out check and deletion processing of cyclic redundancy check (CB CRC) of a coding block, code block cascade processing and check and deletion processing of cyclic redundancy check (TB CRC) of a transmission block on the second data bit block to obtain a first data bit block;

extracting a first data block and a second data block from the first data bit block;

processing the synthesized data block to obtain a data bit block added with a cyclic redundancy check (CB CRC) of a coding block;

carrying out CB CRC (cyclic redundancy check) and deletion processing and code block cascading processing on the data bit block added with the CB CRC in sequence to obtain a cascaded data bit block;

extracting a third data bit block and a fourth data bit block from the cascaded data bit blocks;

carrying out check and deletion processing of cyclic redundancy check (TB CRC) of a first transmission block on the third data bit block to obtain a first data block; and

performing check and deletion processing of a second TB CRC on the fourth data bit block to obtain a second data block;

processing the synthesized data block to obtain a data bit block after cascade connection;

extracting a fifth data bit block and a sixth data bit block from the cascaded data bit blocks;

sequentially carrying out checking and deleting processing of cyclic redundancy check (CB CRC) of a third coding block, code block cascade processing and checking and deleting processing of cyclic redundancy check (TB CRC) of a third transmission block on the fifth data bit block to obtain a first data block; and

sequentially carrying out check and deletion processing of a fourth CB CRC, code block cascade processing and check and deletion processing of a fourth TB CRC on the sixth data bit block to obtain a second data block;

A data transmission apparatus operating in a transmitter, the data transmission apparatus comprising:

a receiving unit, configured to receive a first data block and a second data block from a same user equipment, where the first data block is a retransmitted data block, and the second data block is a newly transmitted data block;

the processing unit is used for multiplexing the first data block and the second data block on a bit level to obtain a synthesized data block;

and the transmission unit is used for transmitting the synthesized data blocks in the same transmission time interval TTI.

According to a preferred embodiment of the present invention, the processing unit performs multiplexing processing on the first data block and the second data block at a bit level, and a manner of obtaining a composite data block specifically includes:

processing the second data bit block to obtain a synthesized data block;

sequentially performing fourth TB CRC addition processing, coding block blocking processing and fourth CB CRC addition processing on the second data block at a bit level to obtain a sixth data bit block;

processing the cascaded data bit blocks to obtain a synthesized data block;

A data transmission apparatus operable in a receiver, the data transmission apparatus comprising:

a receiving unit, configured to receive a composite data block transmitted in a same TTI;

a processing unit, configured to perform de-data multiplexing on the synthesized data block to obtain a first data block and a second data block, where the first data block is a retransmitted data block, the second data block is a newly transmitted data block, and both the first data block and the second data block are from the same ue.

According to a preferred embodiment of the present invention, the manner of obtaining the first data block and the second data block by the processing unit performing de-data multiplexing on the synthesized data block is specifically as follows:

processing the synthesized data block to obtain a second data bit block;

carrying out check and deletion processing of cyclic redundancy check (TB CRC) of a first transmission block on the third data bit block to obtain a first data block;

checking and deleting a second TB CRC on the fourth data bit block to obtain a second data block;

sequentially carrying out checking and deleting processing of cyclic redundancy check (CB CRC) of a third coding block, code block cascade processing and checking and deleting processing of cyclic redundancy check (TB CRC) of a third transmission block on the fifth data bit block to obtain a first data block;

and sequentially carrying out check and deletion processing of a fourth CB CRC, code block cascade processing and check and deletion processing of a fourth TB CRC on the sixth data bit block to obtain a second data block;

According to the technical scheme, after the transmitter receives a first data block and a second data block from the same user equipment, wherein the first data block is a retransmitted data block, and the second data block is a newly transmitted data block; the transmitter may further perform data multiplexing on the first data block and the second data block at a bit level to obtain a composite data block; finally, the transmitter can transmit the composite data block in the same TTI. Therefore, the invention can simultaneously support the transmission of two different types of data blocks in the same TTI, and reduce the transmission time delay of the system.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a flow chart of a data transmission method according to a first preferred embodiment of the present invention.

Fig. 2 is a first preferred diagram of the data transmission method involving data processing according to the present invention.

Fig. 3 is a second preferred diagram of the data transmission method involving data processing according to the present invention.

Fig. 4 is a third preferred diagram related to data processing in the data transmission method of the present invention.

Fig. 5 is a fourth preferred diagram related to data processing in the data transmission method of the present invention.

Fig. 6 is a fifth preferred diagram related to data processing in the data transmission method of the present invention.

FIG. 7 is a diagram illustrating a data transmission method according to the present invention.

FIG. 8 is a flowchart illustrating a data transmission method according to a second preferred embodiment of the present invention.

Fig. 9 is a functional block diagram of the data transmission device according to the first preferred embodiment of the present invention.

Fig. 10 is a functional block diagram of a data transmission device according to a second preferred embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a transmitter implementing a data transmission method according to a preferred embodiment of the present invention.

Fig. 12 is a schematic structural diagram of a receiver implementing a preferred embodiment of the data transmission method of the present invention.

Description of the main elements

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

In the invention, the transmitter and the receiver are communicated, and both the transmitter and the receiver can transmit and receive information. The transmitter may be a user equipment or a base station, and the receiver may be a user equipment or a base station. When the transmitter is a user equipment, the receiver is a base station; when the transmitter is a base station, the receiver is a user equipment. Of course, in other embodiments, the transmitter and receiver are not limited to a base station or user equipment. For example, the transmitter and the receiver may also be network devices including, but not limited to, a single network server, a server group consisting of a plurality of network servers, or a Cloud based Computing (Cloud Computing) Cloud consisting of a large number of hosts or network servers, wherein Cloud Computing is one type of distributed Computing, a super virtual computer consisting of a collection of loosely coupled computers.

The user equipment is a device capable of automatically performing numerical calculation and/or information processing according to a preset or stored instruction, and the hardware includes, but is not limited to, a microprocessor, an Application Specific Integrated Circuit (ASIC), a Programmable gate array (FPGA), a Digital Signal Processor (DSP), an embedded device, and the like.

The user equipment includes, but is not limited to, any electronic product capable of performing human-computer interaction with a user through a keyboard, a mouse, a remote controller, a touch panel, or a voice control device, for example, a Personal computer, a tablet computer, a smart phone, a Personal Digital Assistant (PDA), an interactive Internet Protocol Television (IPTV), a smart wearable device, a Digital camera, and the like. The user equipment mentioned above is only an example, not an exhaustive list, and includes but is not limited to the terminal equipment mentioned above.

The base station, i.e. the public mobile communication base station, is a form of radio station, which is a radio transceiver station capable of information transfer with mobile phone terminals through a mobile communication switching center in a certain radio coverage area.

A base station (e.g., access point) can refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a base Station (NodeB) in WCDMA, or an evolved Node B (NodeB or eNB or e-NodeB) in LTE, which is not limited in the embodiment of the present invention.

It should be noted that the data transmission method of the present invention is applicable to both uplink data transmission and downlink data transmission, and the embodiments of the present invention are not limited.

As shown in fig. 1, fig. 1 is a flowchart of a data transmission method according to a first preferred embodiment of the present invention. Wherein, the data transmission method is applied to the transmitter side. The order of the steps in the flow chart may be changed and some steps may be omitted according to different needs.

S10, the transmitter receives the first data block and the second data block from the same user equipment.

Wherein the first data block is a retransmitted data block and the second data block is a newly transmitted data block.

Wherein the first data block is any one of the following: a retransmitted Transport Block (TB), a retransmitted coded Block (Code Block, CB), and a retransmitted coded Block Group (Code Block Group, CBG) from the same TB, wherein the CBG is composed of a plurality of CBs; the second data block is a newly transmitted TB.

S11, the transmitter multiplexes the first data block and the second data block at a bit level to obtain a composite data block.

As an optional implementation manner, in step S11, the transmitter performs data multiplexing on the first data block and the second data block at a bit level to obtain a composite data block, which may specifically be:

adding a transmission block cyclic redundancy check (TB) CRC, coding block partitioning and adding a coding block cyclic redundancy check (CB CRC) to the first data bit block in sequence to obtain a second data bit block;

and processing the second data bit block to obtain a synthesized data block.

Specifically, the transmitter may perform channel coding processing, modulation processing, and the like on the second data bit block to obtain a composite data block.

The addition of Transport Block Cyclic Redundancy Check (TB CRC) is performed to increase the error detection capability of TB, and the addition of Code Block Cyclic Redundancy Check (CB CRC) is performed to increase the error detection capability of CB. The TBCRC calculation method may be the same as or different from the CB CRC calculation method. For example, CB CRC can be calculated by using a calculation formula of gcrc24A, TB CRC can be calculated by using a calculation formula of gcrc24B, and the detailed calculation is well known in the art and will not be described in detail herein.

In this embodiment, the bit arrangement order of the first data block and the second data block is the first data block and the second data block in sequence; namely, on the bit level, the first data block is firstly followed by the second data block; or the bit arrangement order of the first data block and the second data block is the second data block and the first data block in sequence, that is, at the bit level, the second data block is first, and then the first data block is second. Fig. 2 shows a schematic diagram of the former bit arrangement.

Referring to fig. 2, fig. 2 is a first preferred diagram of data processing involved in the data transmission method of the present invention. As can be seen from fig. 2, after the retransmitted TB (or CB or CBG) is concatenated with the newly transmitted TB, a newly constructed data block (i.e., the first data bit block described above) is generated, after the TB CRC is added to the newly constructed data block, the encoded block is partitioned into a plurality of CBs (e.g., #1CB, #2CB … … # N CB), and further, after the CB CRC is added to each CB, a plurality of CBs carrying the CRC are generated (e.g., #1CB/#1CB, #2CB/#2CB … … # N CB/# N CBCRC).

As another optional implementation, in step S11, the transmitter performs data multiplexing on the first data block and the second data block at a bit level to obtain a composite data block, which may specifically be:

adding a first transmission block cyclic redundancy check (TB CRC) to the first data block at a bit level to obtain a third data bit block, and adding a second TB CRC to the second data block at the bit level to obtain a fourth data bit block;

carrying out cascade processing on the third data bit block and the fourth data bit block;

and processing the data bit block added with the CB CRC to obtain a synthesized data block.

Specifically, the transmitter may perform operations such as channel coding processing and modulation processing on the data bit block to which the CB CRC is added, to obtain a composite data block.

In this embodiment, the bit arrangement order of the first data block and the second data block is the first data block and the second data block in sequence; namely, on the bit level, the first data block is firstly followed by the second data block; or the bit arrangement order of the first data block and the second data block is the second data block and the first data block in sequence, that is, at the bit level, the second data block is first, and then the first data block is second. Fig. 3 and 4 show the former bit arrangement.

Referring to fig. 3, fig. 3 is a second preferred diagram of the data transmission method according to the present invention, which relates to data processing. As can be seen from fig. 3, after the TB CRC is added to the retransmitted TB (or CB or CBG), and the TB CRC is added to the newly transmitted TB, the two are concatenated to generate a newly constructed data block (i.e., the concatenated data bit block described above), further, the newly constructed data block is block-divided into a plurality of CBs (e.g., #1CB, #2CB … … # N CB), and further, after the CB CRC is added to each CB, a plurality of CBs carrying the CB CRC are generated (e.g., #1CB/#1 cbc, #2CB/#2 CRC … … # N CB/# N CRC CB).

Optionally, please refer to fig. 4, where fig. 4 is a third preferred diagram of the data transmission method related to data processing according to the present invention. The difference between fig. 4 and fig. 3 is that in fig. 4, the retransmitted TB (or CB or CBG) does not need to be subjected to the TB CRC addition process in advance, whereas in fig. 3, the retransmitted TB (or CB or CBG) needs to be subjected to the TB CRC addition process in advance. The technical solution corresponding to fig. 4 can be inferred from the technical solution described in fig. 3, and is not described herein again.

As can be seen from fig. 3 and fig. 4, for the first data block (e.g. the retransmitted transport block TB, the retransmitted coded block CB, and the retransmitted coded block group CBG from the same TB), the TB CRC addition process may be performed at a bit level, or no process may be performed.

sequentially performing fourth TB CRC addition processing, coding block partitioning processing and fourth CB CRC addition processing on the second data block at a bit level to obtain a sixth data bit block;

carrying out cascade processing on the fifth data bit block and the sixth data bit block;

and processing the cascaded data bit blocks to obtain a synthesized data block.

Specifically, the transmitter may perform operations such as channel coding processing and modulation processing on the concatenated data bit blocks to obtain a composite data block.

In this embodiment, the bit arrangement order of the first data block and the second data block is the first data block and the second data block in sequence; namely, on the bit level, the first data block is firstly followed by the second data block; or the bit arrangement order of the first data block and the second data block is the second data block and the first data block in sequence, that is, at the bit level, the second data block is first, and then the first data block is second. Fig. 5 and fig. 6 show the former bit arrangement sequence.

Referring to fig. 5, fig. 5 is a fourth preferred diagram of the data transmission method according to the present invention, which relates to data processing. As can be seen from fig. 5, after TB CRC is added to retransmitted TBs (or CBs or CBGs), the coding blocks are partitioned into a plurality of CBs (e.g., #1CB, #2CB … … # N CB), and further, after CB CRC is added to each CB, a plurality of CBs carrying CB CRCs are generated (e.g., #1CB/#1CB CRC, #2CB/#2CB CRC … … # N CB/# N CB CRC). Meanwhile, after the TB CRC is added to the newly transmitted TB, the encoding block is divided into a plurality of CBs (e.g., #1CB, #2CB … … # NCB), and further, after the CB CRC is added to each CB, a plurality of CBs carrying the CB CRC are generated (e.g., #1CB/#1CB CRC, #2CB/#2CB CRC … … # N CB/# N CB CRC).

After both of them complete the addition of CB CRC, they are concatenated to generate a newly constructed data block (i.e., the concatenated data bit block described above).

Referring to fig. 6, fig. 6 is a fifth preferred diagram of the data transmission method according to the present invention, which relates to data processing. The difference between fig. 6 and fig. 5 is that in fig. 6, the retransmitted TB (or CB or CBG) does not need to be subjected to the TB CRC addition process in advance, whereas in fig. 5, the retransmitted TB (or CB or CBG) needs to be subjected to the TB CRC addition process in advance. The technical solution corresponding to fig. 6 can be inferred from the technical solution described in fig. 5, and is not described herein again.

As can be seen from fig. 5 and fig. 6, for the first data block (for example, the retransmitted transport block TB, the retransmitted coded block CB, and the retransmitted coded block group CBG from the same TB), the TB CRC addition process may be performed at a bit level, or no process may be performed.

And S12, the transmitter transmits the synthesized data blocks in the same transmission time interval TTI.

Referring to fig. 7, fig. 7 is a schematic diagram illustrating a data transmission method according to the present invention. As shown in fig. 7, after performing data multiplexing on the retransmitted TB, or CB, or CBG (i.e., the first data block described above) and the newly transmitted TB (i.e., the second data block described above) from the same User Equipment (UE) a, a composite data block is generated, and can be transmitted in the same Transmission Time Interval (TTI). Therefore, two different types of data blocks can be simultaneously supported to be transmitted in the same TTI, and the transmission delay of the system is reduced.

In the method flow described in fig. 1, after the transmitter receives the first data block and the second data block from the same user equipment, the transmitter may further perform data multiplexing processing on the first data block and the second data block at a bit level to obtain a composite data block; the first data block is a retransmitted data block, and the second data block is a newly transmitted data block; finally, the transmitter can transmit the composite data block in the same TTI. Therefore, the invention can simultaneously support the transmission of two different types of data blocks in the same TTI, and reduce the transmission time delay of the system.

As shown in fig. 8, fig. 8 is a flowchart of a data transmission method according to a second preferred embodiment of the present invention. Wherein the data transmission method is applied to the receiver side. The order of the steps in the flow chart may be changed and some steps may be omitted according to different needs. The data transmission method described in fig. 8 and the data transmission method described in fig. 1 are two methods corresponding to each other and in a transceiving relationship, and the description of the data transmission method described in fig. 8 can be obtained by performing reverse derivation with reference to the related steps in the data transmission method described in fig. 1, which is not described herein again.

S80, the receiver receives the composite data block transmitted in the same TTI.

S81, the receiver carries out de-data multiplexing processing on the synthesized data block to obtain a first data block and a second data block.

The first data block is a retransmitted data block, the second data block is a newly transmitted data block, and the first data block and the second data block are both from the same user equipment.

Wherein the first data block is any one of the following: the system comprises a retransmitted transmission block TB, a retransmitted coding block CB and a retransmitted coding block group CBG from the same TB, wherein the CBG consists of a plurality of CBs; the second data block is a newly transmitted TB.

As an optional implementation manner, in step S81, the manner of the receiver performing de-data multiplexing on the synthesized data block to obtain the first data block and the second data block may specifically be:

processing the synthesized data block to obtain a second data bit block;

sequentially carrying out check and deletion processing of cyclic redundancy check (CB CRC) of a coding block, code block cascade processing and check and deletion processing of cyclic redundancy check (TB CRC) of a transmission block on a second data bit block to obtain a first data bit block;

a first data block and a second data block are extracted from the first block of data bits.

As another optional implementation manner, in step S81, the manner of the receiver performing de-data multiplexing on the synthesized data block to obtain the first data block and the second data block may specifically be:

carrying out check and deletion processing of cyclic redundancy check (TB CRC) of a first transmission block on a third data bit block to obtain a first data block;

and carrying out check and deletion processing of the second TB CRC on the fourth data bit block to obtain a second data block.

carrying out check and deletion processing of cyclic redundancy check (CB CRC) of a third coding block, code block cascade processing and check and deletion processing of cyclic redundancy check (TB CRC) of a third transmission block in sequence on a fifth data bit block to obtain a first data block;

and sequentially carrying out check and deletion processing of a fourth CB CRC, code block cascade processing and check and deletion processing of a fourth TB CRC on the sixth data bit block to obtain a second data block.

The bit arrangement sequence of the first data block and the second data block is the first data block and the second data block in sequence; or the bit arrangement sequence of the first data block and the second data block is the second data block and the first data block in sequence.

In the method flow described in fig. 8, the receiver may receive the composite data block transmitted in the same TTI, and perform de-data multiplexing on the composite data block to obtain a first data block and a second data block, where the first data block is a retransmitted data block, the second data block is a newly transmitted data block, and both the first data block and the second data block are from the same ue. It can be seen that, in the embodiment of the present invention, the transmitter performs data multiplexing on different types of data blocks from the same ue, and transmits the data blocks in the same TTI after obtaining the composite data block, and the receiver receives the composite data block, and then performs data demultiplexing on the composite data block to obtain the first data block and the second data block.

As shown in fig. 9, fig. 9 is a functional block diagram of a data transmission device according to a first preferred embodiment of the present invention. The data transmission device 11 includes a receiving unit 100, a processing unit 101, and a transmitting unit 102. The unit referred to in the present invention is a series of computer program segments capable of being executed by the processor 13 and performing a fixed function, and is stored in the memory 12. In the present embodiment, the functions of the units will be described in detail in the following embodiments.

A receiving unit 100, configured to receive a first data block and a second data block from a same ue, where the first data block is a retransmitted data block, and the second data block is a newly transmitted data block;

a processing unit 101, configured to perform data multiplexing on the first data block and the second data block at a bit level to obtain a composite data block;

a transmitting unit 102, configured to transmit the composite data block in the same TTI.

Wherein the first data block is any one of: the system comprises a retransmitted transmission block TB, a retransmitted coding block CB and a retransmitted coding block group CBG from the same TB, wherein the CBG consists of a plurality of CBs; the second data block is a newly transmitted TB.

Optionally, the processing unit 101 performs data multiplexing on the first data block and the second data block at a bit level, and a manner of obtaining a synthesized data block specifically is as follows:

and processing the second data bit block to obtain a synthesized data block.

and processing the cascaded data bit blocks to obtain a synthesized data block.

Wherein the bit arrangement order of the first data block and the second data block is the first data block and the second data block in sequence; or the bit arrangement order of the first data block and the second data block is the second data block and the first data block in sequence.

The integrated unit implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor 13(processor) to execute some steps of the methods according to the embodiments of the present invention.

Referring to fig. 10, fig. 10 is a functional block diagram of a data transmission device according to a second preferred embodiment of the present invention. The data transmission device 21 includes a receiving unit 200 and a processing unit 201. The unit referred to in the present invention is a series of computer program segments capable of being executed by the processor 23 and performing a fixed function, and is stored in the memory 22. In the present embodiment, the functions of the units will be described in detail in the following embodiments.

A receiving unit 200, configured to receive a composite data block transmitted in a same TTI;

a processing unit 201, configured to perform data demultiplexing on the synthesized data block to obtain a first data block and a second data block, where the first data block is a retransmitted data block, the second data block is a newly transmitted data block, and both the first data block and the second data block are from the same ue.

Optionally, the manner of performing de-data multiplexing on the synthesized data block by the processing unit 201 to obtain the first data block and the second data block specifically is as follows:

processing the synthesized data block to obtain a second data bit block;

and carrying out check and deletion processing of a second TB CRC on the fourth data bit block to obtain a second data block.

The integrated unit implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor 23(processor) to execute some steps of the methods according to the embodiments of the present invention.

As shown in fig. 11, fig. 11 is a schematic structural diagram of a transmitter according to a preferred embodiment of the data transmission method of the present invention. The transmitter 1 comprises a memory 12 and a processor 13. The transmitter 1 may be configured to execute the data transmission method described in fig. 1, which may specifically refer to the relevant description in fig. 1 and is not described herein again. It should be noted that the transmitter shown in fig. 11 may also include more or fewer components than those shown.

The transmitter 1 may be a user equipment or a base station. The user equipment includes, but is not limited to, any electronic product capable of performing human-computer interaction with a user through a keyboard, a mouse, a remote controller, a touch panel, or a voice control device, for example, a Personal computer, a tablet computer, a smart phone, a Personal Digital Assistant (PDA), an interactive web Television (IPTV), an intelligent wearable device, a digital camera, and the like. The user equipment mentioned above is only an example, not an exhaustive list, and includes but is not limited to the terminal equipment mentioned above. A base station (e.g., access point) can refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base station (NodeB) in WCDMA, or an evolved Node B (NodeB or eNB or e-NodeB) in LTE, which is not limited in the embodiment of the present invention.

The memory 12 is used for storing a program and various data of a data transmission method and realizing high-speed and automatic access of the program or the data during the operation of the transmitter 1. The memory 12 may be an external memory and/or an internal memory of the transmitter 1. Further, the Memory 12 may be a circuit having a Memory function without any physical form In the integrated circuit, such as a RAM (Random-Access Memory), a FIFO (First In First out), and the like. Alternatively, the memory 12 may be a memory in a physical form, such as a memory stick, a TF Card (Trans-flash Card), or the like.

The processor 13 is also called a Central Processing Unit (CPU), and is an ultra-large scale integrated circuit, which is an operation Core (Core) and a Control Core (Control Unit) of the transmitter 1. The processor 13 may execute the operating system of the transmitter 1 as well as various installed applications, program codes, etc., such as the data transmission device 11.

In conjunction with fig. 1, the memory 12 in the transmitter 1 stores a plurality of instructions to implement a data transmission method, which the processor 13 can execute to implement:

receiving a first data block and a second data block from the same user equipment, wherein the first data block is a retransmitted data block, and the second data block is a newly transmitted data block; multiplexing the first data block and the second data block on a bit level to obtain a synthesized data block; and transmitting the synthesized data blocks in the same transmission time interval TTI.

According to a preferred embodiment of the present invention, the first data block is any one of the following: the system comprises a retransmitted transmission block TB, a retransmitted coding block CB and a retransmitted coding block group CBG from the same TB, wherein the CBG consists of a plurality of CBs; the second data block is a newly transmitted TB.

According to a preferred embodiment of the present invention, the multiplexing the first data block and the second data block by the processor 13 at a bit level to obtain a composite data block includes:

and processing the second data bit block to obtain a synthesized data block.

and processing the cascaded data bit blocks to obtain a synthesized data block.

Specifically, the processor 13 may refer to the description of the relevant steps in the embodiment corresponding to fig. 1 for a specific implementation method of the instruction, which is not described herein again.

Fig. 12 is a schematic structural diagram of a receiver implementing a preferred embodiment of the data transmission method according to the present invention, as shown in fig. 12. The receiver 2 comprises a memory 22 and a processor 23. The receiver 2 may be configured to execute the data transmission method described in fig. 8, which may specifically refer to the relevant description in fig. 8, and is not described herein again.

The receiver 2 may be a user equipment or a base station. The user equipment includes, but is not limited to, any electronic product capable of performing human-computer interaction with a user through a keyboard, a mouse, a remote controller, a touch panel, or a voice control device, for example, a Personal computer, a tablet computer, a smart phone, a Personal Digital Assistant (PDA), an interactive web Television (IPTV), an intelligent wearable device, a digital camera, and the like. The user equipment mentioned above is only an example, not an exhaustive list, and includes but is not limited to the terminal equipment mentioned above. A base station (e.g., access point) can refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base station (NodeB) in WCDMA, or an evolved Node B (NodeB or eNB or e-NodeB) in LTE, which is not limited in the embodiment of the present invention.

The memory 22 is used for storing a program and various data of a data transmission method and realizing high-speed and automatic access to the program or data during the operation of the receiver 2. The memory 22 may be an external memory and/or an internal memory of the receiver 2. Further, the Memory 22 may be a circuit having a storage function without any physical form In the integrated circuit, such as a RAM (Random-Access Memory), a FIFO (First In First out), and the like. Alternatively, the memory 22 may be a memory in a physical form, such as a memory stick, a TF Card (Trans-flash Card), or the like.

The processor 23 is also called a Central Processing Unit (CPU), and is an ultra-large scale integrated circuit, which is an operation Core (Core) and a Control Core (Control Unit) of the receiver 2. The processor 23 may execute the operating system of the receiver 2 as well as various installed application programs, program codes, etc., such as the data transmission device 21.

In conjunction with fig. 8, the memory 22 in the receiver 2 stores a plurality of instructions to implement a data transmission method, and the processor 23 executes the plurality of instructions to implement:

receiving a composite data block transmitted in the same transmission time interval TTI; and performing data demultiplexing processing on the synthesized data block to obtain a first data block and a second data block, wherein the first data block is a retransmitted data block, the second data block is a newly transmitted data block, and the first data block and the second data block are both from the same user equipment.

According to a preferred embodiment of the present invention, the processor 23 performs data demultiplexing on the synthesized data block to obtain a first data block and a second data block, including:

processing the synthesized data block to obtain a second data bit block;

In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.

The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional module.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system claims may also be implemented by one unit or means in software or hardware. The terms second, etc. are used to denote names, but not any particular order.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A data transmission method applied in a transmitter, the method comprising:

receiving a first data block and a second data block from the same user equipment, wherein the first data block is a retransmitted data block, the second data block is a newly transmitted data block, and the first data block is any one of the following: the system comprises a retransmitted transmission block TB, a retransmitted coding block CB or a retransmitted coding block group CBG from the same TB, wherein the CBG consists of a plurality of CBs; the second data block is a newly transmitted TB;

multiplexing the first data block and the second data block on a bit level to obtain a synthesized data block;

and transmitting the synthesized data blocks in the same transmission time interval TTI.

2. The method of claim 1, wherein the multiplexing the first data block and the second data block at a bit level to obtain a composite data block comprises:

and processing the second data bit block to obtain a synthesized data block.

3. The method of claim 1, wherein the multiplexing the first data block and the second data block at a bit level to obtain a composite data block comprises:

sequentially carrying out coding block partitioning processing and coding block cyclic redundancy check (CB CRC) adding processing on the cascaded data bit blocks;

4. The method of claim 1, wherein the multiplexing the first data block and the second data block at a bit level to obtain a composite data block comprises:

and processing the cascaded data bit blocks to obtain a synthesized data block.

5. A data transmission method applied in a receiver, the method comprising:

receiving a composite data block transmitted in the same transmission time interval TTI;

performing data demultiplexing processing on the synthesized data block to obtain a first data block and a second data block, wherein the first data block is a retransmitted data block, the second data block is a newly transmitted data block, the first data block and the second data block are both from the same user equipment, and the first data block is any one of the following: the system comprises a retransmitted transmission block TB, a retransmitted coding block CB or a retransmitted coding block group CBG from the same TB, wherein the CBG consists of a plurality of CBs; the second data block is a newly transmitted TB.

6. The method of claim 5, wherein the de-multiplexing the composite data block to obtain a first data block and a second data block comprises:

processing the synthesized data block to obtain a second data bit block;

7. The method of claim 5, wherein the de-multiplexing the composite data block to obtain a first data block and a second data block comprises:

and carrying out checking and deleting processing of a second TB CRC on the fourth data bit block to obtain a second data block.

8. The method of claim 5, wherein the de-multiplexing the composite data block to obtain a first data block and a second data block comprises:

9. A data transmission apparatus operable in a transmitter, the data transmission apparatus comprising:

a receiving unit, configured to receive a first data block and a second data block from a same user equipment, where the first data block is a retransmitted data block, the second data block is a newly transmitted data block, and the first data block is any one of the following: the system comprises a retransmitted transmission block TB, a retransmitted coding block CB or a retransmitted coding block group CBG from the same TB, wherein the CBG consists of a plurality of CBs; the second data block is a newly transmitted TB;

10. The data transmission apparatus according to claim 9, wherein the processing unit performs data multiplexing on the first data block and the second data block at a bit level, and obtains a composite data block specifically by:

and processing the second data bit block to obtain a synthesized data block.

11. The data transmission apparatus according to claim 9, wherein the processing unit performs data multiplexing on the first data block and the second data block at a bit level, and obtains a composite data block specifically by:

12. The data transmission apparatus according to claim 9, wherein the processing unit performs data multiplexing on the first data block and the second data block at a bit level, and obtains a composite data block specifically by:

and processing the cascaded data bit blocks to obtain a synthesized data block.

13. A data transmission apparatus, operable in a receiver, the data transmission apparatus comprising:

a processing unit, configured to perform de-data multiplexing on the synthesized data block to obtain a first data block and a second data block, where the first data block is a retransmitted data block, the second data block is a newly transmitted data block, and both the first data block and the second data block are from a same ue, and the first data block is any one of the following: the system comprises a retransmitted transmission block TB, a retransmitted coding block CB or a retransmitted coding block group CBG from the same TB, wherein the CBG consists of a plurality of CBs; the second data block is a newly transmitted TB.

14. The data transmission apparatus according to claim 13, wherein the processing unit performs de-data multiplexing on the synthesized data block, and the manner of obtaining the first data block and the second data block is specifically:

processing the synthesized data block to obtain a second data bit block;

15. The data transmission apparatus according to claim 13, wherein the processing unit performs de-data multiplexing on the synthesized data block, and the manner of obtaining the first data block and the second data block is specifically:

16. The data transmission apparatus according to claim 13, wherein the processing unit performs de-data multiplexing on the synthesized data block, and the manner of obtaining the first data block and the second data block is specifically: