CN116032329A

CN116032329A - Data transmission method, device, terminal and network side equipment

Info

Publication number: CN116032329A
Application number: CN202111256242.3A
Authority: CN
Inventors: 刘进华
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2023-04-28

Abstract

The application discloses a data transmission method, a device, a terminal and network side equipment, which belong to the technical field of communication, and the data transmission method in the embodiment of the application comprises the following steps: the method comprises the steps that a transmitting end determines at least one target beam corresponding to at least one logic channel respectively; and the transmitting end uses the target beams respectively corresponding to the at least one logic channel to respectively transmit network coding data carried by the at least one logic channel.

Description

Data transmission method, device, terminal and network side equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a data transmission method, a data transmission device, a terminal and network side equipment.

Background

Network coding techniques acquire diversity gain for data transmission by protocol layer coding over a physical layer channel. Typical scenarios considered for current wireless networks are frequency diversity (by aggregating carrier frequency diversity between carriers), spatial diversity between wireless links (e.g., dual-link), etc.

Currently, the acquisition of network coding gain requires relying on spatial or frequency diversity gain through dual-link and multi-carrier acquisition. To achieve these gains, one premise is that the network needs to deploy multiple carriers, the terminals need to support multiple carrier aggregation or multiple links, and in practice these conditions are not always available, depending on whether the operator has enough frequency resources and can afford the cost of multiple carriers, and whether the consumer is willing to afford a dual-receive channel terminal. In addition, in the future 6G high frequency networks, the bandwidth of a single carrier reaches several GHz or more, and the cost of requiring terminals to support inter-frequency dual carrier aggregation or dual connectivity becomes extremely high. Therefore, how to make the network coding method have diversity gain under the single link scenario is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The embodiment of the application provides a data transmission method, a data transmission device, a terminal and network side equipment, so as to solve the problem of how to enable a network coding method to have diversity gain under a single link scene.

In a first aspect, a data transmission method is provided, including:

the method comprises the steps that a sending end determines target beams corresponding to at least one logic channel respectively;

and the transmitting end uses the target beams respectively corresponding to the at least one logic channel to transmit the network coding data carried by the at least one logic channel.

In a second aspect, a data transmission method is provided and applied to a network side device, and the method includes:

and the receiving and transmitting end uses at least one logic channel to respectively correspond to the network coding data transmitted by the target beam, wherein the at least one logic channel is used for bearing the network coding data.

In a third aspect, there is provided a data transmission apparatus comprising:

the determining module is used for determining target beams corresponding to at least one logic channel respectively;

and the receiving and transmitting module is used for transmitting the network coding data carried by the at least one logic channel by using the target beams respectively corresponding to the at least one logic channel.

In a fourth aspect, there is provided a data transmission apparatus comprising:

the receiving module is used for receiving network coding data sent by a sending end through target beams respectively corresponding to at least one logic channel, and the at least one logic channel is used for bearing the network coding data.

In a fifth aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect.

In a sixth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to determine target beams corresponding to at least one logical channel respectively; the communication interface is used for transmitting network coding data carried by the at least one logic channel by using the target beams respectively corresponding to the at least one logic channel.

In a seventh aspect, a network side device is provided, the network side device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions implementing the steps of the method according to the second aspect when executed by the processor.

In an eighth aspect, a network side device is provided, where the network side device includes a processor and a communication interface, where the communication interface is configured to receive network coded data sent by a sending end by using at least one logical channel respectively corresponding to a target beam, and the at least one logical channel is configured to carry the network coded data.

In a ninth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In a tenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In an eleventh aspect, a computer program/program product is provided, the computer program/program product being stored in a non-transitory storage medium, the program/program product being executed by at least one processor to implement the steps of the data transmission method according to the first or second aspect.

In the embodiment of the application, a transmitting end determines target beams corresponding to at least one logic channel respectively; the transmitting end uses at least one logic channel to respectively correspond to the target wave beams, transmits the network coding data carried by the at least one logic channel, realizes space diversity through different wave beams for transmitting the network coding data, and can acquire diversity gain of the network coding data.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic diagram of a network data encoding principle provided in an embodiment of the present application;

fig. 3 is a schematic view of an application scenario provided in an embodiment of the present application;

fig. 4 is a schematic flow chart of a data transmission method according to an embodiment of the present application;

fig. 5 is a schematic view of another application scenario provided in an embodiment of the present application;

fig. 6 is a schematic diagram of network data encoding and transmission principle provided in an embodiment of the present application;

fig. 7 is one of the interactive flow diagrams of the data transmission method provided in the embodiment of the present application;

FIG. 8 is a second schematic diagram of an interaction flow of the data transmission method according to the embodiment of the present application;

FIG. 9 is a third schematic diagram of an interaction flow of the data transmission method according to the embodiment of the present application;

FIG. 10 is a fourth schematic diagram of an interaction flow of a data transmission method according to an embodiment of the present application;

FIG. 11 is a fifth schematic diagram of an interaction flow of a data transmission method according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;

FIG. 13 is a second schematic diagram of a data transmission device according to an embodiment of the present disclosure;

fig. 14 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

fig. 15 is a schematic hardware structure of a terminal according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example, and NR terminology is used in much of the description below, but these techniques are also applicable to applications other than NR system applications, such asGeneration 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or furniture, etc.), and the Wearable Device includes: intelligent watches, intelligent bracelets, intelligent headphones, intelligent glasses, intelligent jewelry (intelligent bracelets, intelligent rings, intelligent necklaces, intelligent bracelets, intelligent footchains, etc.), intelligent bracelets, intelligent clothing, game machines, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

Description of network coding principles

When the original data block is subjected to network coding, the transmitting end needs to be subjected to three steps of 'original data block segmentation', 'generation of coding matrix' and 'coding', and the receiving end needs to be subjected to 'decoding'. Network coding has the following characteristics: (1) The source breaks the original data block into (N) sub-blocks and then encodes to generate (M, M > =n) encoded sub-blocks. (2) The transmitting end transmits the M coding sub-blocks to the receiving end, and the receiving end can successfully recover the original data block based on the received X (N= < X < = M) coding sub-blocks. Based on the characteristic of network coding, the receiving end has no prejudice to the received coding packet, and can successfully decode the coding packet only when a matrix formed by vectors implicitly or explicitly contained in the received coding packet meets the condition of full rank. The transmission is encoded through the network, so that in the case that some encoded sub-blocks are lost, the receiving end can still recover the original data based on the received encoded sub-blocks.

In an integrated access backhaul (Integrated Access and Backhaul, IAB) system, data undergoes multi-hop wireless transmission between a donor distributed unit DU and a UE, and in existing IAB networks, due to latency, radio link control (Radio Link Control, RLC retransmission is limited to only two nodes of one Backhaul (BH) link, and high-layer protocol retransmission automatic retransmission between a centralized unit CU and a UE is not implemented, resulting in weaker robustness of data transmission of the IAB network than the case of only one-hop wireless transmission.

The robustness of data transmission can be enhanced through network coding, and the receiving and transmitting end does not need additional feedback information and is not influenced by a network topological structure. Compared with the traditional method for enhancing the robustness, such as PDCP repetition, the method has no requirement on the network structure, and can realize the relative reduction of the equivalent redundancy code rate.

(a) Original data block segmentation by the originating terminal

The original data block P (original data, source data packet) needs to be equally divided into K original data sub-blocks (source data segment), so P can be expressed as:

p＝[p ₁ p ₂ … p _K ]

wherein p is _k For dividing intoPost original data sub-block, and p _k Each element in (2) belongs to GF (2), which is a galois field (galois field).

(b) Originating-generated encoding matrix

The coding matrix is as follows:

wherein K is the number of sub-blocks obtained by dividing the original data block in equal parts, and N is the number of coding sub-blocks obtained by coding the K original data sub-blocks.

And, the sum of the addition of each column of elements in the coding matrix M is defined as "degree of freedom" d, the formula is:

the degree of freedom d follows a particular distribution, which is related to K.

The generation rule of the nth (N epsilon 1-N) columns in the coding matrix is as follows:

first randomly generating d according to the distribution of the degree of freedom d _n (indicating the degree of freedom of the nth encoded packet);

let m _k，n =1, where K is d randomly taken from 1 to K _n The value of the number.

(c) Originating encoding

C＝PM＝[c ₁ c ₂ ... c _N ]

Wherein [ c ] ₁ c ₂ ... c _N ]Is N encoded sub-blocks.

(d) The receiving end decodes after receiving enough coding sub-blocks

Both transmitting and receiving ends need to have the original data sub-block number (i.e. the nth column vector in the coding matrix M corresponding to the nth coding packet) required for generating the coding packet. The receiving end combines the vectors corresponding to the received coding sub-blocks into a matrix H, and when the H meets the condition of full rank (H) =K), the current received coding is enough to be decoded.

The column vector and the corresponding coding packet which form the full row rank in the matrix H are taken out to form a new coding matrix H 'and a new coding sub-block vector C', so that the original data can be obtained as follows:

[p ₁ p ₂ ... p _κ ]＝C′H′ ^-1

and sequentially combining the obtained original data sub-blocks, namely completely recovering to obtain an original data block P.

The network coding is used for redundant transmission to improve the reliability of transmission and further reduce the delay in transmission, the required redundancy is different under different conditions, and the required redundancy is generally significantly less than 100%.

In an embodiment of the present application, as shown in fig. 2, an original data packet is segmented into original data sub-blocks according to network coding requirements, and then is network-coded into a plurality of network coding sub-blocks, and the network coding sub-blocks are divided into 4 sets. As shown in fig. 3, the 4 network coding sub-block sets are mapped to aggregated carriers (Component Carrier, CC) 1 and 2 of a Master gcnb (MgNB) link, and carriers 3 and 4 of a Secondary gcnb (SgNB) link, respectively, and because the radio links and/or carriers experienced by the four coding sub-block sets are different, that is, logical channels carrying network coding sub-blocks are mapped onto frequencies or radio links, the effect of spatial and/or frequency diversity reception between the coding sub-block sets can be achieved, thereby achieving network coding transmission gains.

In the above solution, space and/or frequency diversity gain is obtained, and there is a premise that the network needs to deploy multiple carriers, and the terminals need to support multiple carrier aggregation or multiple links, which are not always available in practice, depending on whether the operator has enough frequency resources and can bear the cost of multiple carriers, and whether the consumer is willing to bear the terminals of the dual reception channels. In addition, in the future 6G high frequency networks, the bandwidth of a single carrier reaches several GHz or more, and the cost of requiring terminals to support inter-frequency dual carrier aggregation or dual connectivity becomes extremely high. Therefore, how to make the network coding method have diversity gain under the single link scenario is a technical problem that needs to be solved by those skilled in the art.

The data transmission method provided by the embodiment of the application is described in detail below by some embodiments and application scenarios thereof with reference to the accompanying drawings.

Fig. 4 is a schematic flow chart of a data transmission method according to an embodiment of the present application. As shown in fig. 4, the data transmission method provided in this embodiment includes:

step 101, a transmitting end determines target beams corresponding to at least one logic channel respectively;

the transmitting end can be a base station, a terminal or a relay node.

Specifically, for network encoded data to be transmitted, one or more logical channels may be configured, and a correspondence between each logical channel and a beam may be configured. One logical channel may correspond to at least one beam.

Alternatively, the original data block may be network coded to obtain a plurality of network coded sub-blocks, and the plurality of network coded sub-blocks are mapped onto at least one logical channel.

Step 102, the transmitting end uses the target beams corresponding to the at least one logic channel respectively to transmit the network coding data carried by the at least one logic channel.

Specifically, the transmitting end uses the target beams corresponding to the at least one logical channel determined in the step 101 to transmit the network coding data carried by the at least one logical channel.

For example, a plurality of network coding sub-blocks are divided into at least two groups, each group of network coding sub-blocks being transmitted using a different beam. The diversity gain of the network coding transmission can be obtained through the space diversity transmission among the network coding sub-blocks.

Fig. 5 shows a network coding process, a network coding sub-block to logical channel mapping process, and a logical channel to beam mapping process. For example, the plurality of network coding sub-blocks are divided into 4 sets, mapped to the 4 logical channels, respectively, and transmitted using beams corresponding to the respective logical channels.

Fig. 6 shows an example of an application of different sets of network encoded sub-blocks transmitting the same original data block over a plurality of different beams of the same radio connection, wherein the configurable smart reflective surface (Reconfigurable intelligent surface, RIS) is an electromagnetic wave reflecting unit that generates a reflected beam towards the receiver (terminal or base station) by reflecting the beam from the transmitter (base station or terminal).

It should be noted that the method of the embodiments of the present application is not limited to the case of applying only one single carrier radio connection, and may be used in combination with carrier aggregation and dual connectivity. For example, the terminal has dual connection/dual aggregation carriers, each connection or aggregation carrier has 2 available beams, and then it can be regarded that there are 4 available beams between the terminal and the network side device, and the network coding sub-blocks generated by the same original data block coding can be mapped to the 4 beams respectively, that is, transmitted through the 4 beams.

In the method of the embodiment, a transmitting end determines target beams respectively corresponding to at least one logical channel; the transmitting end uses at least one logic channel to respectively correspond to the target wave beams, transmits the network coding data carried by the at least one logic channel, realizes space diversity through different wave beams for transmitting the network coding data, and can acquire diversity gain of the network coding data.

Optionally, the target beams respectively corresponding to the at least one logical channel include beams in different directions and/or beams of different carriers under the same carrier.

Optionally, the network coding data is obtained by network coding the original data based on network coding configuration information, where the network coding configuration information includes at least one of the following: the original data block is divided into the number and the size of the original data subblocks, a network coding codebook and the number of network coding subblocks.

Specifically, as shown in fig. 5, the sending end configures information according to network coding, including at least one of the following: the method comprises the steps of dividing an original data block into configuration information (comprising the number and the size) of original data sub-blocks, generating a network coding codebook, dividing the original data block into a plurality of original data sub-blocks by the number of generated network coding sub-blocks, and carrying out network coding to obtain a plurality of network coding sub-blocks.

Alternatively, the network coding configuration information may be sent by the network side device, or preconfigured.

Optionally, the sending end receives at least one of the following information from the network side device:

configuration information of at least one logical channel;

the correspondence of at least one logical channel with the target beam;

The network encodes allocation information of data between at least one logical channel.

Specifically, the network side device configures at least one logical channel, where the at least one logical channel can be used for data transmission of the same service data stream, and data of each logical channel corresponds to a different beam of the air interface.

Optionally, the network encoded data comprises network encoded sub-blocks, and allocation information of the network encoded data between the at least one logical channel satisfies at least one of:

the network encoded data sub-blocks are equally distributed among at least one logical channel; or alternatively, the first and second heat exchangers may be,

the first number of network coding sub-blocks allocated per logical channel is less than or equal to X and/or greater than or equal to Y, X and Y being derived on an N basis or contained in configuration information received from the network side device;

the network coding sub-blocks are obtained based on one original data block in the original data, the total number of the network coding sub-blocks is N, and the N is an integer larger than 0.

Specifically, N network coding sub-blocks generated by the same original data block coding are distributed to corresponding logic channels on average; or alternatively, the first and second heat exchangers may be,

n network coding sub-blocks generated by the same original data block code are allocated to each logic channel, and/or not more than X network coding sub-blocks are allocated to each logic channel, and/or not less than Y network coding sub-blocks, wherein X and Y are configured by network side equipment, namely, are carried in configuration information sent to a sending end or the sending end is determined according to N.

Optionally, when the transmitting end is a terminal, in the correspondence between the logical channels and the beams, the logical channels correspond to the identification IDs of the target beams, where the identification IDs of the target beams include at least one of the following: sounding reference signal (Sounding Reference Signal, SRS) resource sequence number, channel state information measurement reference signal (Channel State Information Reference Signal, CSI-RS) resource sequence number, precoding matrix sequence number, and synchronization signal block (Synchronization Signal Block, SSB) sequence number.

Specifically, the network side device, for example, the base station, may configure a correspondence between the logical channel and the beam, for example, the logical channel ID may correspond to a target beam ID, where the target beam ID may be an SRS resource sequence number (SRS resource index, SRI) corresponding to the beam, a CSI-RS resource sequence number (CSI-RS Resource Index, CRI), a precoding matrix sequence number (precoding matrix index), and a synchronization signal block SSB sequence number.

Optionally, the transmitting end is a network side device, and in the correspondence between the logical channel and the target beam, the logical channel corresponds to an ID of the target beam, where the ID of the target beam includes at least one of the following: the method comprises the steps of synchronizing signal block SSB sequence numbers, channel state information measurement reference signal CSI-RS resource sequence numbers, precoding matrix sequence numbers, transceiver node (Transmission Reception Point, TRP) identifiers, reconfigurable intelligent surface RIS node identifiers and relay node identifiers.

In the above embodiment, the sending end obtains the configuration information of the logic channel, the corresponding relation between the logic channel and the beam, and the distribution information of the network coding data from the network side device, so that the implementation logic of the sending end is simpler and the complexity is lower.

In one embodiment, as shown in FIG. 7, the method includes:

step 100, a transmitting end distributes network coding data to at least one logic channel;

102a, aiming at any logic channel, a transmitting end acquires network coding data borne by the logic channel to generate a transmission block;

step 102b, transmitting by using the target beam.

In one embodiment, as shown in FIG. 8, the method includes:

step 100', the network side equipment transmits the corresponding relation between at least one logic channel and the target beam;

step 101, a terminal determines target beams respectively corresponding to at least one logic channel based on the corresponding relation;

step 102b, transmitting by using the target beam.

In the above embodiment, the transmitting end allocates the network coding data to at least one logical channel, and determines the target beams respectively corresponding to the at least one logical channel based on the correspondence; the transmitting end obtains the network coding data carried by the logic channel, generates a transmission block, uses the corresponding target wave beams to transmit, realizes space diversity by transmitting different wave beams of the network coding data, and can obtain diversity gain of the network coding data.

In one embodiment, step 100 may be implemented in several ways:

mode of

The transmitting end allocates network-coded data to at least one logical channel based on the allocation information.

Specifically, the transmitting end allocates the network coding data to at least one logical channel based on allocation information of the network coding data between the at least one logical channel, for example, allocates a plurality of network coding sub-blocks to each logical channel on average, or, a first number of the network coding sub-blocks allocated to each logical channel is less than or equal to X and/or greater than or equal to Y.

Another way is

The transmitting end allocates network coded data to at least one logical channel based on the state of the target beam to which the at least one logical channel corresponds, respectively.

Specifically, since the terminal is movable, the available beam for the same terminal may be changed, network coding data may be allocated to a logical channel based on the available state of the target beam, that is, network coding data allocated to each logical channel may be dynamically adjusted, for example, if the available state of the target beam corresponding to a certain logical channel is unavailable, network coding data is not allocated to the logical channel, and if the available state of the target beam corresponding to a certain logical channel is available, network coding data is allocated to the logical channel.

The transmitting end determines whether a logic channel has a corresponding available wave beam, if so, the logic channel is determined to be the available logic channel, and network coding sub-blocks can be allocated to the corresponding logic channel. When one logical channel does not have available beams which can be corresponding to the available beams, the logical channel is an unavailable logical channel, and the transmitting end cannot allocate network coding data to the logical channel.

For example, if there are 3 available logical channels, then the network coding sub-blocks may be equally allocated to each available logical channel.

Alternatively, the beam availability may refer to the beam signal strength being greater than a preset strength threshold and the beam not being occupied.

In the above embodiment, the transmitting end may allocate the network coding data to at least one logical channel based on the allocation information sent by the network side device, or based on the states of the target beams corresponding to the at least one logical channel, which is more flexible. If network coding data is allocated based on the states of the target beams respectively corresponding to at least one logical channel, the allocated target beams corresponding to the logical channels are available beams, so that the data transmission efficiency and reliability can be improved.

Optionally, the transmitting end allocates the network coding data to at least one logical channel based on the states of the target beams corresponding to the at least one logical channel respectively, which can be specifically achieved by the following ways:

the transmitting end determines a second number of network coding sub-blocks allocated to the available logical channels according to the number of the available logical channels; the available logical channels are logical channels in which a corresponding target beam in the at least one logical channel is an available beam; the second number of network coding sub-blocks is smaller than or equal to the integer obtained by upper rounding of N/M; m is the number of available logical channels.

Specifically, the transmitting end determines the second number of network coding sub-blocks dynamically allocated to the logic channels according to the number M of the available logic channels, and the maximum second number which can be allocated to one logic channel is

N is the total number of network encoded sub-blocks obtained from network encoding one original data block.

Alternatively, the process may be carried out in a single-stage,

less than or equal to X, and/or greater than or equal to Y.

Optionally, the change in availability of the beam includes at least one of:

the original available beam corresponding to one logical channel becomes unavailable;

new beams become available, e.g., a beam corresponding to one logical channel becomes available from an unavailable state;

the change in the relative signal strength between the beams, for example, the beam corresponding to one logical channel is originally the strongest signal beam and becomes the non-strongest signal beam, or the beam corresponding to one logical channel is originally the non-strongest signal beam and becomes the strongest signal beam.

Alternatively, the primary logical channel may be varied based on the wireless signal quality variation of the beam, e.g., the transmitting end determines the primary logical channel based on the wireless signal quality strength of the beam. For example, the transmitting end may determine the logical channel corresponding to the beam with the best wireless signal quality as the main logical channel.

Optionally, the beam with the best wireless signal quality includes at least one of the following:

reference signal received power (Reference Signal Received Power, RSRP), reference signal received quality (Reference Signal Received Quality, RSRQ), signal to interference plus noise ratio (Signal to Interference Noise Ratio, SINR), beam with highest signal to noise ratio (Signal to Noise Ratio, SNR), or beam with lowest block error rate (Block Error Ratio, BLER).

In the above embodiment, the transmitting end may determine the number of available logical channels based on the available state of the target beam, and allocate the network coding data to at least one logical channel based on the number of available logical channels, and since the beam for transmitting the network coding data is the available beam, the reliability of data transmission is greater.

Optionally, if the transmitting end is a terminal, the method further includes:

the terminal acquires indication information sent by network side equipment, wherein the indication information is used for indicating information of at least one first available wave beam;

and the terminal determines the corresponding relation between the at least one logic channel and the wave beam according to the information of the at least one first available wave beam and the configuration information of the at least one logic channel.

The terminal determines at least one target beam corresponding to each logic channel based on the corresponding relation;

wherein the information of the at least one first available beam comprises at least one of: wireless quality information of the at least one first available beam, the number of the at least one first available beam, carrier information corresponding to the at least one first available beam, an identification of the at least one first available beam, and an identification of a reference signal corresponding to the at least one first available beam;

The configuration information of the at least one logical channel includes at least one of: the number of the at least one logical channel, the amount of data carried, and primary logical channel information in the at least one logical channel.

Specifically, as shown in fig. 9, if the transmitting end is a terminal, the network side device (e.g. a base station) may notify the terminal of the information of the first available beam (as shown in step 100 "), for example, the information of the first available beam, and the terminal determines a correspondence between at least one first available beam and at least one configuration information of the logical channel according to the information of the first available beam as shown in step 103. And the terminal determines target beams corresponding to at least one logic channel respectively based on the corresponding relation, and transmits network coding data carried by the logic channels by utilizing the target beams.

Optionally, the correspondence between the at least one logical channel determined by the terminal and the target beam includes at least one of:

in the case that the number of the at least one first available beam is greater than or equal to the number of the at least one logical channel, each logical channel corresponds to the at least one first available beam, respectively;

in case the number of the at least one first available beam is smaller than the number of the at least one logical channel, the first logical channel corresponds to the at least one available beam; the first logical channel is a primary logical channel of the at least one logical channel.

In particular, when the number of at least one first available beam is greater than the number of at least one logical channel, one logical channel may be mapped to one or more first available beams;

when the number of at least one first available beam is less than the number of at least one logical channel, the primary logical channel is mapped to at least one first available beam, other logical channels may not have a corresponding first available beam, and one logical channel may not be available because of the lack of a corresponding first available beam.

In the above embodiment, the terminal may determine the target beam corresponding to the logical channel based on the information of the first available beam sent by the network side device, and since the target beam for transmitting the network encoded data is the available beam, the reliability of data transmission is greater.

In an embodiment, a transmitting end obtains a corresponding relation between at least one logic channel and a target beam from a network side device;

step 101 may be specifically implemented as follows:

and the transmitting end determines target beams corresponding to the at least one logic channel respectively based on the corresponding relation.

Specifically, the transmitting end may determine, based on a corresponding relationship between at least one logical channel and the target beam, a target beam corresponding to the at least one logical channel respectively; for example, as shown in fig. 8, the correspondence may be sent by the network side device.

In an embodiment, the step 101 may be specifically implemented as follows:

the transmitting end determines target beams respectively corresponding to the at least one logical channel based on the wireless signal quality of the at least one first available beam.

Specifically, since the terminal is movable, the uplink and downlink first available beams of the same terminal may also be changed, and the wireless signal quality of the first available beam may also be dynamically changed, as shown in fig. 10, the target beam corresponding to at least one logical channel respectively may be determined based on the wireless signal quality of at least one first available beam, that is, the correspondence between the logical channel and the target beam may be changed along with the change of the wireless signal quality of the first available beam.

In the above embodiment, the transmitting end may determine the corresponding relationship between at least one logical channel and the target beam, or determine the target beam corresponding to at least one logical channel based on the wireless signal quality of the dynamically changing beam, which has greater flexibility.

Optionally, the at least one logical channel includes a second logical channel, and determining, based on the wireless signal quality of the at least one first available beam, a target beam corresponding to the at least one logical channel, respectively, may be implemented in the following manner:

And under the condition that the second logic channel is the main logic channel, determining the target beam corresponding to the second logic channel as a second available beam, wherein the second available beam is the beam with the best wireless signal quality in at least one first available beam.

Specifically, the main logic channel may be mapped to the first available beam with the best wireless signal quality, and the transmitting end may transmit the network encoded data carried by the main logic channel by using the first available beam with the best wireless signal quality.

In the above embodiment, the transmitting end may determine, based on the wireless signal quality of the dynamically changing beam, the target beam corresponding to each of the at least one logical channel, and for any logical channel, for example, determine the beam with better wireless signal quality as the corresponding target beam, especially the main logical channel, so that the beam with the best wireless signal quality may be selected, and the network encoded data may be transmitted through the target beam, so that the reliability of data transmission is higher.

It should be noted that the first logical channel and the second logical channel may be the same or different channels, which is not limited in the embodiment of the present application.

In an embodiment, the at least one logical channel comprises a third logical channel, and in case a target beam corresponding to the third logical channel is not available, the method further comprises:

If the unused third available beam exists in the at least one first available beam, the sending end takes the third available beam as a target beam corresponding to a third logic channel; or alternatively, the first and second heat exchangers may be,

if the third logical channel is the main logical channel and the third available beam does not exist, the transmitting end takes the target beam corresponding to the fourth logical channel in at least one logical channel as the target beam corresponding to the third logical channel.

Specifically, when a target beam corresponding to a logical channel becomes unavailable, if a new available beam exists, the logical channel may correspond to the new available beam, that is, network encoded data carried by the logical channel is transmitted using the new available beam.

When one third logical channel is a main logical channel and the corresponding target beam becomes unavailable and no new beam is available, the beams corresponding to other logical channels can be squeezed, namely, the beams corresponding to other fourth logical channels are used as the beams corresponding to the main logical channel, namely, the beams corresponding to other fourth logical channels are used for transmitting network coding data carried by the main logical channel.

In the above embodiment, if the target beam corresponding to the logical channel is unavailable, the transmitting end may transmit the network encoded data carried by the logical channel by using other available beams, so as to improve stability of data transmission.

Fig. 11 is a second schematic diagram of an interaction flow of the data transmission method according to the embodiment of the present application. As shown in fig. 11, the data transmission method provided in this embodiment includes:

104, the receiving end receives network coding data sent by the sending end by using at least one logic channel respectively corresponding to the target beams; wherein at least one logical channel is used to carry network encoded data.

Optionally, the receiving end sends at least one of the following information to the sending end:

configuration information of the at least one logical channel;

the correspondence between the at least one logical channel and the target beam;

the network encodes allocation information of data between the at least one logical channel.

Optionally, the sending end is a terminal, the receiving end is a network side device, and the method further includes:

the network side equipment sends indication information to the terminal, wherein the indication information is used for indicating information of at least one first available wave beam; wherein the information of the at least one first available beam comprises at least one of: the wireless quality information of the at least one first available beam, the number of the at least one first available beam, carrier information corresponding to the at least one first available beam, the identification of the at least one first available beam, and the identification of a reference signal corresponding to the at least one first available beam.

Optionally, the correspondence between the at least one logical channel and the target beam includes at least one of:

in the case that the number of the at least one available beam is greater than or equal to the number of the at least one logical channel, each of the logical channels corresponds to at least one of the available beams, respectively;

in the case that the number of the at least one available beam is smaller than the number of the at least one logical channel, a first logical channel corresponds to at least one of the available beams; the first logical channel is a primary logical channel in the at least one logical channel.

Optionally, the transmitting end is a terminal, the logical channel in the correspondence corresponds to an ID of the target beam, and the ID of the target beam includes at least one of the following: sounding Reference Signal (SRS) resource sequence number, channel state information measurement reference signal (CSI-RS) resource sequence number, precoding matrix sequence number and Synchronization Signal Block (SSB) sequence number.

Optionally, the transmitting end is a network side device, the logical channel in the correspondence corresponds to an ID of the target beam, and the ID of the target beam includes at least one of the following: the method comprises the steps of synchronizing signal block SSB sequence numbers, channel state information measurement reference signal CSI-RS resource sequence numbers, precoding matrix sequence numbers, transceiver node TRP identifiers, reconfigurable intelligent surface RIS node identifiers and relay node identifiers.

The specific implementation process and technical effects of the method of the embodiment are similar to those of the embodiment of the method of the transmitting end, and specific reference may be made to the detailed description of the embodiment of the method of the transmitting end, which is not repeated here.

It should be noted that, in the data transmission method provided in the embodiments of the present application, the execution body may be a data transmission device, or a processing module in the data transmission device for executing the data transmission method. In the embodiment of the present application, a data transmission device executes a data transmission method as an example, and the data transmission device provided in the embodiment of the present application is described.

Fig. 12 is a schematic structural diagram of a data transmission device provided in the present application. As shown in fig. 12, the data transmission apparatus provided in this embodiment includes:

a determining module 1201, configured to determine target beams corresponding to at least one logical channel respectively;

and a transceiver module 1202, configured to transmit network encoded data carried by the at least one logical channel by using the target beams respectively corresponding to the at least one logical channel.

In the data transmission device of this embodiment, the determining module determines target beams corresponding to at least one logical channel respectively; the receiving and transmitting module uses at least one logic channel to respectively correspond to the target wave beams, transmits network coding data carried by the at least one logic channel, realizes space diversity through different wave beams for transmitting the network coding data, and can acquire diversity gain of the network coding data.

Optionally, the transceiver module 1202 is further configured to:

acquiring the corresponding relation between the at least one logic channel and the target beam from network side equipment;

the determining module 1201 is specifically configured to:

and determining target beams respectively corresponding to the at least one logic channel based on the corresponding relation.

Optionally, the transmitting end is a terminal, and the transceiver module 1202 is further configured to:

acquiring indication information sent by network side equipment, wherein the indication information is used for indicating information of at least one first available wave beam;

a determining module 1201, configured to determine a correspondence between the at least one logical channel target and the beam according to the information of the at least one first available beam and the configuration information of the at least one logical channel;

determining target beams respectively corresponding to the at least one logic channel based on the corresponding relation;

in the case that the number of the at least one first available beam is greater than or equal to the number of the at least one logical channel, each of the logical channels corresponds to at least one first available beam, respectively;

in case the number of the at least one first available beam is smaller than the number of the at least one logical channel, the first logical channel corresponds to at least one of the first available beams; the first logical channel is a primary logical channel of the at least one logical channel.

Optionally, the determining module 1201 is specifically configured to:

based on the wireless signal quality of at least one first available beam, a target beam respectively corresponding to the at least one logical channel is determined.

Optionally, the at least one logical channel includes a second logical channel, and the determining module 1201 is specifically configured to:

and under the condition that the second logic channel is a main logic channel, determining that a target beam corresponding to the second logic channel is a second available beam, wherein the second available beam is the beam with the best wireless signal quality in the at least one first available beam.

Optionally, the at least one logical channel includes a third logical channel, where the determining module 1201 is further configured to:

if at least one first available beam has an unused third available beam, the sending end takes the third available beam as a target beam corresponding to the third logic channel; or alternatively, the first and second heat exchangers may be,

and if the third logic channel is a main logic channel and the third available beam does not exist, the transmitting end takes the target beam corresponding to the fourth logic channel in the at least one logic channel as the target beam corresponding to the third logic channel.

Optionally, the method further comprises:

a processing module for assigning the network encoded data to the at least one logical channel;

the transceiver module 1202 is specifically configured to: and aiming at any logic channel, the sending end acquires network coding data borne by the logic channel, generates a transmission block and transmits by utilizing the target beam.

Optionally, the transceiver module 1202 is further configured to:

receiving distribution information of the network coding data among the at least one logic channel, which is sent by network side equipment;

the processing module is specifically configured to:

the network encoded data is allocated to the at least one logical channel based on the allocation information.

Optionally, the processing module is specifically configured to:

and distributing the network coding data to the at least one logic channel based on the states of the target beams respectively corresponding to the at least one logic channel.

Optionally, the network coding data includes a network coding sub-block, and the allocation information satisfies at least one of the following:

the network encoded data sub-blocks are equally distributed among the at least one logical channel; or alternatively, the first and second heat exchangers may be,

a first number of network coding sub-blocks allocated for each of the logical channels is less than or equal to X and/or greater than or equal to Y, wherein X and Y are obtained based on N or are included in configuration information received from the network side device;

The network coding sub-blocks are obtained based on one original data block in original data, the total number of the network coding sub-blocks is N, and the N is an integer larger than 0.

Optionally, the processing module is specifically configured to:

the transmitting end determines a second number of network coding sub-blocks distributed to the available logical channels according to the number of the available logical channels; the available logical channels are logical channels in which the corresponding target beam in the at least one logical channel is an available beam; the second number of the network coding sub-blocks is smaller than or equal to an integer obtained by upper rounding of N/M; the M is the number of the available logical channels.

Optionally, the beam with the best wireless signal quality includes at least one of the following cases:

reference signal received power RSRP, reference signal received quality RSRQ, signal to interference plus noise ratio SINR, the beam with the highest signal to noise ratio SNR, or the beam with the lowest block error rate BLER.

Optionally, the network coding data is obtained by network coding the original data based on network coding configuration information, and the network coding configuration information includes at least one of the following: the original data block is divided into the number and the size of the original data subblocks, a network coding codebook and the number of network coding subblocks.

The apparatus of the present embodiment may be used to execute the method of any one of the foregoing terminal side method embodiments, and specific implementation processes and technical effects of the apparatus are similar to those of the terminal side method embodiment, and specific details of the terminal side method embodiment may be referred to in the detailed description of the terminal side method embodiment and are not repeated herein.

Fig. 13 is a second schematic structural diagram of the data transmission device provided in the present application. As shown in fig. 13, the data transmission apparatus provided in this embodiment includes:

a receiving module 1301, configured to receive network coded data sent by a sending end by using at least one logical channel respectively corresponding to a target beam, where the at least one logical channel is used to carry the network coded data.

Optionally, the method further comprises:

a sending module 1302, configured to send at least one of the following information to the sending end:

configuration information of the at least one logical channel;

Optionally, the sending end is a terminal, the receiving end is a network side device, and the sending module 1302 is further configured to:

transmitting indication information to the terminal, wherein the indication information is used for indicating information of at least one first available wave beam; wherein the information of the at least one first available beam comprises at least one of: the wireless quality information of the at least one first available beam, the number of the at least one first available beam, carrier information corresponding to the at least one first available beam, the identification of the at least one first available beam, and the identification of a reference signal corresponding to the at least one first available beam.

The apparatus of the present embodiment may be used to execute the method of any one of the foregoing network side method embodiments, and specific implementation processes and technical effects of the apparatus are similar to those of the network side method embodiment, and specific details of the network side method embodiment may be referred to in the detailed description of the network side method embodiment and are not repeated herein.

The data transmission device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.

The data transmission device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to 11, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Optionally, as shown in fig. 14, the embodiment of the present application further provides a communication device 1400, including a processor 1401, a memory 1402, and a program or an instruction stored in the memory 1402 and capable of running on the processor 1401, where the communication device 1400 is a terminal, for example, the program or the instruction is executed by the processor 1401 to implement the respective processes of the embodiment of the data transmission method, and achieve the same technical effects. When the communication device 1400 is a network side device, the program or the instruction when executed by the processor 1401 realizes the respective processes of the above-mentioned data transmission method embodiment, and can achieve the same technical effects, and for avoiding repetition, the description is omitted here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining target beams corresponding to at least one logic channel respectively; the communication interface is used for transmitting network coding data carried by the at least one logic channel by using the target beams respectively corresponding to the at least one logic channel. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment and can achieve the same technical effects. Specifically, fig. 15 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1000 includes, but is not limited to: at least some of the components of the radio frequency unit 1001, the network module 1002, the audio output unit 1003, the input unit 1004, the sensor 1005, the display unit 1006, the user input unit 1007, the interface unit 1008, the memory 1009, and the processor 1010, etc.

Those skilled in the art will appreciate that terminal 1000 can also include a power source (e.g., a battery) for powering the various components, which can be logically connected to processor 1010 by a power management system so as to perform functions such as managing charge, discharge, and power consumption by the power management system. The terminal structure shown in fig. 15 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 can include two portions, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from a network side device, the radio frequency unit 1001 processes the downlink data with the processor 1010; in addition, the uplink data is sent to the network side equipment. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1009 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 1010 may include one or more processing units; alternatively, the processor 1010 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

Wherein, the processor 1010 is configured to determine target beams corresponding to at least one logical channel respectively;

and the radio frequency unit 1001 is configured to transmit network encoded data carried by the at least one logical channel by using the target beams corresponding to the at least one logical channel respectively.

In the above embodiment, the processor determines the target beams corresponding to at least one logical channel respectively; the radio frequency unit uses at least one logic channel to respectively correspond to the target beams, transmits network coding data carried by the at least one logic channel, realizes space diversity through different beams for transmitting the network coding data, and can acquire diversity gain of the network coding data.

Optionally, the radio frequency unit 1001 is further configured to:

the processor 1010 is specifically configured to determine, based on the correspondence, a target beam corresponding to the at least one logical channel respectively.

Optionally, the transmitting end is a terminal, and the radio frequency unit 1001 is further configured to:

A processor 1010, configured to determine a correspondence between the at least one logical channel and the beam according to the information of the at least one first available beam and the configuration information of the at least one logical channel;

In the above embodiment, the transmitting end may determine the target beam corresponding to the at least one logical channel respectively based on the corresponding relationship between the at least one logical channel and the target beam acquired in advance, or based on the corresponding relationship between the at least one logical channel and the target beam determined by itself, which is more flexible.

Optionally, the processor 1010 is specifically configured to:

Optionally, the at least one logical channel includes a second logical channel, and the processor 1010 is specifically configured to:

In the above embodiment, the transmitting end may determine, based on the wireless signal quality of the dynamically changing beam, the target beam corresponding to each of the at least one logical channel, and for any logical channel, for example, determine the beam with better wireless signal quality as the corresponding target beam, especially the main logical channel, and may select the beam with the best signal quality as the target beam, and transmit the network encoded data through the target beam, so that the reliability of data transmission is higher.

Optionally, the at least one logical channel includes a third logical channel, and the processor 1010 is further configured to, in a case where a target beam corresponding to the third logical channel is not available:

In the above embodiment, if the beam corresponding to the logical channel is unavailable, the transmitting end may transmit the network encoded data carried by the logical channel by using other available beams, so as to improve stability of data transmission.

Optionally, the processor 1010 is further configured to:

assigning the network encoded data to the at least one logical channel;

the radio frequency unit 1001 is specifically configured to: and aiming at any logic channel, the sending end acquires network coding data borne by the logic channel, generates a transmission block and transmits by utilizing the target beam.

Optionally, the radio frequency unit 1001 is further configured to:

the processor 1010 is specifically configured to:

the transmitting end allocates the network coding data to the at least one logical channel based on the allocation information.

Optionally, the processor 1010 is specifically configured to:

the transmitting end distributes the network coding data to the at least one logic channel based on the states of the target beams respectively corresponding to the at least one logic channel.

Optionally, the processor 1010 is specifically configured to:

Optionally, the beam with the best signal quality includes at least one of the following cases:

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for receiving network coding data sent by a sending end by using target beams respectively corresponding to at least one logic channel, and the at least one logic channel is used for bearing the network coding data. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 16, the network device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73. The antenna 71 is connected to a radio frequency device 72. In the uplink direction, the radio frequency device 72 receives information via the antenna 71, and transmits the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes information to be transmitted, and transmits the processed information to the radio frequency device 72, and the radio frequency device 72 processes the received information and transmits the processed information through the antenna 71.

The data transmission means described above may be located in a baseband device 73 and the method performed by the network device in the above embodiment may be implemented in the baseband device 73, the baseband device 73 comprising a processor 74 and a memory 75.

The baseband device 73 may, for example, comprise at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 16, where one chip, for example, a processor 74, is connected to the memory 75 to invoke a program in the memory 75 to perform the network device operations shown in the above method embodiment.

The baseband device 73 may also include a network interface 76 for interacting with the radio frequency device 72, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network device of the embodiment of the application further includes: instructions or programs stored in the memory 75 and executable on the processor 74, the processor 74 invokes the instructions or programs in the memory 75 to perform the methods performed by the modules shown in fig. 13 and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction realizes each process of the embodiment of the data transmission method, and the same technical effect can be achieved, so that repetition is avoided, and no description is repeated here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or an instruction, so that each process of the above data transmission method embodiment can be implemented, and the same technical effect can be achieved, so that repetition is avoided, and no redundant description is provided here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement each process of the foregoing embodiments of the data transmission method, and the same technical effects are achieved, so that repetition is avoided and details are not repeated herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A data transmission method, comprising:

2. The data transmission method according to claim 1, characterized in that the method further comprises:

the sending end obtains the corresponding relation between the at least one logic channel and the target beam from network side equipment;

the transmitting end determines target beams corresponding to at least one logic channel respectively, and the method comprises the following steps:

3. The data transmission method according to claim 1, wherein the transmitting end is a terminal, the method further comprising:

the terminal determines the corresponding relation between the at least one logic channel and the target beam according to the information of the at least one first available beam and the configuration information of the at least one logic channel;

the terminal determines target beams corresponding to the at least one logic channel respectively based on the corresponding relation;

4. A data transmission method according to claim 3, wherein the correspondence between the at least one logical channel and the target beam comprises at least one of:

5. The data transmission method according to claim 1, wherein the determining, by the transmitting end, the target beam corresponding to the at least one logical channel respectively includes:

the transmitting end determines target beams respectively corresponding to the at least one logic channel based on the wireless signal quality of at least one first available beam.

6. The method according to claim 5, wherein the at least one logical channel includes a second logical channel, and the transmitting end determines target beams respectively corresponding to the at least one logical channel based on wireless signal quality of the at least one first available beam, including:

7. The data transmission method according to any one of claims 1-6, wherein the at least one logical channel comprises a third logical channel, and wherein in a case where a target beam corresponding to the third logical channel is not available, the method further comprises:

8. The data transmission method according to any one of claims 1 to 6, wherein the transmitting end is a terminal, the logical channel in the correspondence corresponds to an ID of the target beam, and the ID of the target beam includes at least one of:

sounding Reference Signal (SRS) resource sequence number, channel state information measurement reference signal (CSI-RS) resource sequence number, precoding matrix sequence number and Synchronization Signal Block (SSB) sequence number.

9. The method according to any one of claims 1-2 or 5-6, wherein the transmitting end is a network side device, the logical channel in the correspondence corresponds to an ID of the target beam, and the ID of the target beam includes at least one of:

the method comprises the steps of synchronizing signal block SSB sequence numbers, channel state information measurement reference signal CSI-RS resource sequence numbers, precoding matrix sequence numbers, transceiver node TRP identifiers, reconfigurable intelligent surface RIS node identifiers and relay node identifiers.

10. The method according to any one of claims 1-6, further comprising:

the transmitting end distributes the network coding data to the at least one logic channel;

the transmitting end uses the target beams respectively corresponding to the at least one logic channel to transmit the network coding data carried by the at least one logic channel, and the method comprises the following steps:

and aiming at any logic channel, the sending end acquires network coding data borne by the logic channel, generates a transmission block and transmits by utilizing the target beam.

11. The method according to claim 10, wherein the method further comprises:

The transmitting end receives distribution information of the network coding data among the at least one logic channel, wherein the distribution information is transmitted by network side equipment;

the transmitting end distributes the network coding data to the at least one logic channel, which comprises the following steps:

12. The method of claim 10, wherein the transmitting end allocates the network encoded data to the at least one logical channel, comprising:

13. The method of claim 11, wherein the network encoded data comprises network encoded sub-blocks, and wherein the allocation information satisfies at least one of:

14. The method of claim 12, wherein the transmitting end allocates the network encoded data to the at least one logical channel based on the states of the target beams respectively corresponding to the at least one logical channel, comprising:

15. The method according to any of claims 1-6, wherein the target beams respectively corresponding to the at least one logical channel comprise beams of different directions and/or beams of different carriers under the same carrier.

16. The method of claim 6, wherein the step of providing the first layer comprises,

The beam with the best wireless signal quality comprises at least one of the following conditions:

17. The method according to any one of claims 1-6, wherein the network encoded data is obtained by network encoding the original data based on network encoding configuration information, the network encoding configuration information including at least one of: the original data block is divided into the number and the size of the original data subblocks, a network coding codebook and the number of network coding subblocks.

18. A data transmission method, comprising:

the receiving end receives network coding data sent by the sending end by using target beams respectively corresponding to at least one logic channel, wherein the at least one logic channel is used for bearing the network coding data.

19. The method of data transmission according to claim 18, wherein the method further comprises:

the receiving end sends at least one of the following information to the sending end:

configuration information of the at least one logical channel;

20. The data transmission method according to claim 18 or 19, wherein the transmitting end is a terminal, and the receiving end is a network side device, the method further comprising:

21. The data transmission method according to claim 20, wherein the correspondence between the at least one logical channel and the target beam includes at least one of:

22. The data transmission method according to claim 19, wherein the transmitting end is a terminal, the logical channel in the correspondence corresponds to an ID of the target beam, and the ID of the target beam includes at least one of: sounding Reference Signal (SRS) resource sequence number, channel state information measurement reference signal (CSI-RS) resource sequence number, precoding matrix sequence number and Synchronization Signal Block (SSB) sequence number.

23. The method of claim 19, wherein the transmitting end is a network side device, the logical channel in the correspondence corresponds to an ID of the target beam, and the ID of the target beam includes at least one of: the method comprises the steps of synchronizing signal block SSB sequence numbers, channel state information measurement reference signal CSI-RS resource sequence numbers, precoding matrix sequence numbers, transceiver node TRP identifiers, reconfigurable intelligent surface RIS node identifiers and relay node identifiers.

24. A data transmission apparatus, comprising:

25. A data transmission apparatus, comprising:

26. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the data transmission method of any one of claims 1 to 17.

27. A network side device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the data transmission method of any of claims 18 to 23.

28. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions, which when executed by a processor, implements the data transmission method according to any one of claims 1-17, or the steps of the data transmission method according to any one of claims 18 to 23.