WO2017193932A1 - Communication method and network device thereof, and user equipment - Google Patents

Abstract

Embodiments of the present application provide a communication method, comprising: a network device sends parameter information to M user equipments, the parameter information comprises a first random number seed, a coupling width, access degree distribution functions of the M user equipments, and second random number seeds of the M user equipments; the network device sends a first modulation symbol over a first resource block, the first modulation symbol being a modulation symbol obtained by linearly superposing all second modulation symbols in a set of second modulation symbols capable of using the first resource block, and the second modulation symbols being determined by the first random number seed, the coupling width, the access degree distribution function of one user equipment in the M user equipments, data to be sent of the user equipment, and the second random number seed of the user equipment. Therefore, the embodiments of the present application can increase the number of user equipments accessing the communication system, and improve coding efficiency.

Description

Communication method and network device, user equipment Technical field

The present application relates to the field of communications, and more particularly, to a downlink communication method, a network device thereof, and a user equipment.

Background technique

With the development of the Internet of Things, the Internet of Vehicles and the wireless self-organizing network, cell density is the trend of the future network. Massive Access is one of the typical scenarios of the future network. It is characterized by the following: first, the number of potential access users is large and dynamic; second, the service types are complex, and the data volume and delay requirements of different users are accessed. There are significant differences, etc. The third is that the access network has a complex structure, a variety of topologies, and dynamic changes in channel characteristics.

In the downlink of the large-scale access system, if traditional technologies such as CDMA or OFDMA are adopted, the challenges of low transmission efficiency, large signaling overhead, and few access users are faced.

Summary of the invention

The embodiment of the present application provides a communication method, which can improve downlink transmission efficiency of a large-scale access system.

The first aspect provides a communication method, including: the network device sends parameter information to the M user equipments, where M is a positive integer greater than or equal to 2, and the parameter information includes: a first random number seed, a coupling width, An access degree distribution function of the M user equipments and a second random number seed of the M user equipments, where the first random number seed is used to generate a type value corresponding to the resource block, where the coupling width is used. And indicating a number of types of resource blocks that the user equipment can use at most, the access degree distribution function is used to represent a probability of a randomly selected degree of access when the user equipment uses the resource block, and the second random number seed is used to generate An access degree; the network device transmitting a first modulation symbol on a first resource block, wherein the first modulation symbol is a second modulation in a second set of second modulation symbols that can use the first resource block The symbol is linearly superimposed to obtain a modulation symbol, and the second modulation symbol is set by the first random number seed, the coupling width, and one of the M user equipments The distribution function of the access, the second random number seed data to be transmitted to the one user equipment and said one user equipment is determined.

The network device sends the parameter information to the M user equipments, where the parameter information specifically includes:

a first random number seed, the first random number seed is a value preset by the system, and the network device may generate a value of each resource block according to the first random number seed and the resource element (English: Resource element, short form: RE) The algorithm generates a type value corresponding to each resource block, and all the resource blocks use the same first random number seed when determining the type value, and one or more resource blocks may correspond to the same resource block type value;

Coupling width, which indicates that any one of the above M user equipments can access a 2w+1 type resource block, and the M user equipments use the same coupling width w, wherein the coupling width w is a natural number greater than or equal to 1. , for example, can be 1 or 2,;

An access degree distribution function of the user equipment, where the access degree distribution function is used to represent the probability of the access degree randomly selected by the user equipment when using the resource block, and the M user equipments may use the same access degree distribution function, or Different access degree distribution functions are used, and the application is not limited;

a second random number seed of the user equipment, where the second random number seed is also a preset value of the system, each user equipment of the M user equipments has a corresponding second random number seed, and the network equipment is used according to a certain Generating a degree of access d of the user equipment by using a second random number seed of the user equipment and an access degree distribution function of the user equipment, That is, the network device may randomly select d modulation symbols from the modulation symbol sequence corresponding to the data to be transmitted of the user equipment, and send the d modulation symbols through the first resource block, where d is an integer greater than or equal to 0.

In the process of transmitting the foregoing parameter information, the network device may send the same parameter information to the M user equipments by using a broadcast form. It should be understood that the network device may also send the foregoing parameters to user equipments other than the M user equipments. Information, this application is not limited to this.

Therefore, the network device can implement the symmetry of the information by sending the foregoing parameter information to the user equipment, and the user equipment can generate the same factor map as the network device side according to the foregoing information, so as to facilitate subsequent decoding.

The embodiment of the present application can increase the number of accesses of the user equipment in the communication system and improve the coding efficiency by linearly superimposing the modulation symbols to be sent by the multiple user equipments on the same resource block and transmitting the linearly superimposed modulation symbols.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the parameter information further includes a modulation and coding manner of the M user equipment, where an ith of the M user equipments The third modulation symbol set corresponding to the user equipment is processed according to the modulation and coding manner of the i-th user equipment, where i is a positive integer, and 1≤i≤M.

It should be understood that when the parameter information includes the modulation and decoding modes of the M user equipments, the user equipment may obtain the calibration relationship of the modulation and coding of the M user equipments according to the modulation and decoding manner, so as to be generated for decoding. Factor graph.

With reference to the first aspect and the foregoing implementation manner, in a second possible implementation manner of the first aspect, the M user equipments are a group of user equipments of the N groups of user equipments, where the network equipment is in the first resource. Transmitting the first modulation symbol on the block, including: acquiring the resource block type identification algorithm of the N sets of user equipment, where the resource block type identification algorithm is used to identify a type value of the resource block according to the coupling width w, The coupling width w is used to represent that any one of the N sets of user equipments can use a maximum of 2w+1 resource blocks, w is an integer greater than or equal to 0, and N is a positive integer greater than 1; A resource block type identification algorithm determines a type value t of the first resource block, {t:t∈Z, 1-w≤t≤N+w}.

With reference to the first aspect and the foregoing implementation manner, in a third possible implementation manner of the first aspect, the network device sends the first modulation symbol on the first resource block, and further includes: determining the M user equipments a t+i group user equipment of the N sets of user equipment, where {t+i:i∈Z,|i|≤w, t+i∈{1,2,...N}}; with probability

And selecting, from the modulation symbol set corresponding to the t+i group of user equipments, d _t+i modulation symbols, and determining to randomly use elements in the second modulation symbol set of the first resource block, where The access degree distribution function ρ _t+i (x) of the t+i group user equipment is determined by the coupling width and the maximum number of modulation symbols allowed by the resource block of the type value t, wherein

0 ≤ d _{t + i ≤} N _{t + i} , N _{t + i} represents the number of modulation symbols in the third modulation symbol set of the t+i group user equipment, and N _t+i is a positive integer greater than or equal to 1 .

With reference to the first aspect and the foregoing implementation manner, in a fourth possible implementation manner of the first aspect, the channel state of each group of user equipments of the N groups of user equipments is the same and/or each of the N groups of user equipments The quality of service QoS requirements of the group of user equipments are the same.

Therefore, the embodiments of the present application provide different access degree distribution functions for each group of user equipments in the N sets of user equipments, so as to provide different QoS services for different groups of user equipments.

With reference to the first aspect and the foregoing implementation manner, in a fifth possible implementation manner of the first aspect, the method further includes: receiving an acknowledgement message of the S user equipments of the M user equipments, the acknowledgement message Used to indicate The user equipment is successfully decoded, where S is a positive integer, 1≤S≤M; the second modulation symbol is the first random number seed, the coupling width, and one of the M user equipments The access degree distribution function, the data to be sent of the one user equipment, and the second random number seed of the one user equipment are determined, specifically, the second modulation symbol in the second modulation symbol set is configured by the a random number seed, the coupling width, an access degree distribution function of one of the MS user equipments, data to be transmitted of the one of the MS user equipments, and the data of the one user equipment The second random number seed is determined.

With reference to the first aspect and the foregoing implementation manner, in a sixth possible implementation manner of the first aspect, the method further includes: sending, to the user equipment, indication information, where the indication information is used to indicate the S user equipments The decoding was successful.

Therefore, the network device side only needs to inform other user equipments which user equipment is translated to enable other user equipments to synchronize the coding factor map. This adjustment algorithm allows power to be distributed to other user devices that are not translated, thereby facilitating the faster translation of other user devices, thereby increasing system transmission performance.

A second aspect provides a communication method, including: receiving, by a user equipment, parameter information sent by a network device, where the parameter information includes: a first random number seed, a coupling width, an access degree distribution function of the M user equipments, and a a second random number seed corresponding to each of the M user equipments, where M is a positive integer greater than or equal to 2, wherein the first random number seed is used to generate a type value corresponding to the resource block, and the coupling width is used by And indicating a number of types of resource blocks that the user equipment can use at most, the access degree distribution function is used to represent a probability of randomly selecting an access degree when the user equipment uses the resource block, where the second random number seed is used Generating the access degree; the user equipment receives a first modulation symbol on a first resource block, wherein the first modulation symbol is all in a second modulation symbol set capable of using the first resource block The second modulation symbol is linearly superimposed to obtain a modulation symbol, and the second modulation symbol is set by the first random number seed, the coupling width, and the M users A user access device of the distribution function and the second random number seed data to be transmitted to the one user equipment and said one user equipment is determined. Decoding, by the user equipment, the first modulation symbol according to the parameter information to obtain a data bit sequence of the user equipment.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the parameter information further includes a modulation and coding manner of the M user equipments, where the user equipment decodes according to the parameter information. Obtaining, by the first modulation symbol, a data bit sequence of the user equipment, including: the user equipment according to the coupling width, the first random number seed, and the access degree of each user equipment of the M user equipments a distribution function, a second random number seed of each of the M user equipments for generating an access degree, and a modulation and coding mode of each user equipment of the M user equipments, to generate a decoding required a factor map; decoding the first modulation symbol according to the factor graph to obtain a data bit sequence of the user equipment.

With reference to the second aspect and the foregoing implementation manner, in a second possible implementation manner of the second aspect, the method further includes: when the user equipment is successfully decoded, sending an acknowledgement message to the network device.

Therefore, in the embodiment of the present application, by adding the modulation symbols of the multiple user equipments to the same resource block, after the resource blocks are linearly superimposed and the linearly superimposed modulation symbols are sent through the resource blocks, the transmission efficiency can be improved. Increase the number of accesses to user devices.

The third aspect provides a network device, including: a determining unit, a sending unit, where the network device is configured to perform the method in any of the foregoing first aspect or the first aspect.

A fourth aspect provides a user equipment, including: a receiving unit, and a decoding unit, where the user is configured to perform the method in any of the foregoing second aspect or the second aspect.

In a fifth aspect, an apparatus is provided comprising: a processor, a receiver, a transmitter, and a memory, the processing And the memory is connected by a bus system for storing instructions for executing instructions stored by the memory to control the receiver to receive signals, the transmitter to transmit signals, such that the device Performing the method of any of the above first aspect or any of the possible implementations of the first aspect.

In a sixth aspect, an apparatus is provided, including: a processor, a memory, a receiver, and a transmitter, wherein the processor, the memory, and the receiver are connected by a bus system, and the memory is configured to store an instruction The processor is configured to execute the memory stored instructions to control the receiver to receive a signal, the transmitter to transmit a signal, such that the apparatus performs the method of any of the second aspect or the second aspect of the second aspect .

A seventh aspect, a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.

In an eighth aspect, a computer readable medium is provided for storing a computer program comprising instructions for performing the method of the second aspect or any of the possible implementations of the second aspect.

DRAWINGS

FIG. 1 shows a wireless communication system to which an embodiment of the present application is applicable.

FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.

3 is a schematic flow chart of a spatial coupling process of an embodiment of the present application.

4 is a schematic flow chart of a spatial coupling process of another embodiment of the present application.

FIG. 5 is a schematic flowchart of a communication method according to another embodiment of the present application.

Figure 6 is a system block diagram of one embodiment of the present application.

Figure 7 is a schematic flow diagram of one embodiment of the present application.

FIG. 8 is a schematic block diagram of a network device according to an embodiment of the present application.

FIG. 9 is a schematic block diagram of a user equipment according to an embodiment of the present application.

FIG. 10 is a schematic block diagram of a network device according to another embodiment of the present application.

FIG. 11 is a schematic block diagram of a user equipment according to another embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Various embodiments are now described with reference to the drawings, in which the same reference In the following description, numerous specific details are set forth However, it will be apparent that the embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to illustrate one or more embodiments.

The terms "component," "module," "system," and the like, as used in this specification, are used to mean a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and a computing device can be a component. One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.

Furthermore, various aspects or features of the present application can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disk (CD), a digital versatile disk (Digital Versatile Disk, DVD). Etc.), smart cards and flash memory devices (eg, Erasable Programmable Read-Only Memory (EPROM), cards, sticks or key drivers, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code. Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) System, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, and the like.

It should also be understood that in the embodiment of the present application, the terminal device may be referred to as a user equipment (User Equipment, UE), and may also be referred to as a terminal (Mobile), a mobile station (Mobile Station, MS), and a mobile terminal (Mobile Terminal). Wait. Alternatively, the terminal device may be a device that accesses the communication network, such as a sensor node, a car, or the like, or a device on which the communication network can be connected for communication. The terminal device can communicate with one or more core networks via a Radio Access Network (RAN), for example, the terminal device can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc. . For example, the terminal device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.

In the embodiment of the present application, the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in WCDMA, or may be an evolved base station in LTE (Evolutional Node B). , ENB or e-NodeB), this application is not limited.

FIG. 1 shows a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system 100 includes a base station 102 that can include multiple antenna groups. Each antenna group may include one or more antennas, for example, one antenna group may include antennas 104 and 106, another antenna group may include antennas 108 and 110, and an additional group may include antennas 112 and 114. Two antennas are shown in Figure 1 for each antenna group, although more or fewer antennas may be used for each group. Base station 102 can additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which can include multiple components associated with signal transmission and reception (e.g., processor, modulator, multiplexer, demodulation) , demultiplexer or antenna, etc.).

Base station 102 can communicate with one or more terminal devices, such as access terminal 116 and access terminal 122. However, it will be appreciated that base station 102 can communicate with any number of access terminals similar to access terminal 116 or 122. Access terminals 116 and 122 can be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other for communicating over wireless communication system 100. Suitable for equipment. As shown, access terminal 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to access terminal 116 over forward link 118 and from access terminal 116 over reverse link 120. Receive information. In addition, access terminal 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to access terminal 122 over forward link 124 and receive information from access terminal 122 over reverse link 126. In a Frequency Division Duplex (FDD) system, for example, the forward link 118 can utilize a different frequency band than that used by the reverse link 120, and the forward link 124 can utilize the reverse link 126. Different frequency bands used. Moreover, in a Time Division Duplex (TDD) system, the forward link 118 and the reverse link 120 can use a common frequency band, and the forward link 124 and the reverse link 126 can use a common frequency band.

Each set of antennas and/or regions designed for communication is referred to as a sector of base station 102. For example, the antenna group can be designed to communicate with access terminals in sectors of the coverage area of base station 102. During base station 102 communication with access terminals 116 and 122 via forward links 118 and 124, respectively, the transmit antenna of base station 102 may utilize beamforming to improve the signal to noise ratio of forward links 118 and 124. In addition, when the base station 102 uses beamforming to transmit signals to the randomly dispersed access terminals 116 and 122 in the relevant coverage area, the base station 102 uses a single antenna to transmit signals to all of its access terminals. Mobile devices are subject to less interference.

At a given time, base station 102, access terminal 116 or access terminal 122 may be a wireless communication transmitting device and/or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device can encode the data for transmission. In particular, the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks. Further, the wireless communication transmitting apparatus may encode each code block using an encoder (not shown).

It should be understood that the wireless communication system 100 in FIG. 1 is only an example, and the communication system to which the embodiment of the present application is applicable is not limited thereto.

In a large-scale access scenario, the number of terminal devices (e.g., access terminal 116 or access terminal 122) that access base station 102 for communication is large and dynamically changing. If the base station predetermines and allocates communication resources (such as time, frequency, code, etc.) used by each terminal device for communication, a large amount of signaling overhead is required.

The embodiment of the present application provides a communication method, which can improve communication efficiency of the system. The communication method of the embodiment of the present application is described in detail below. It should be noted that the examples are only intended to help those skilled in the art to better understand the embodiments of the present application, and do not limit the scope of the embodiments of the present application.

FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application. The method of Figure 2 can be performed by a network device, such as the base station 102 shown in Figure 1, comprising:

Step 210: The network device sends parameter information to the M user equipments, where M is a positive integer greater than or equal to 2. The parameter information includes: a first random number seed, a coupling width, and an access degree distribution function of the M user equipments. And a second random number seed of the M user equipments, where the first random number seed is used to generate a type value corresponding to the resource block, and the coupling width is used to represent the number of types of resource blocks that the user equipment can use at most, the access degree The distribution function is used to characterize the probability of the access degree randomly selected by the user equipment when the resource block is used, and the second random number seed is used to generate the access degree.

Step 220: The network device sends the first modulation symbol on the first resource block, where the first modulation symbol is a modulation obtained by linearly superimposing all the second modulation symbols in the second modulation symbol set of the first resource block. a symbol, a second modulation symbol, a first random number seed, a coupling width, an access degree distribution function of one of the M user equipments, a data to be transmitted of the one user equipment, and a second random number of the one user equipment Seed determination.

In step 210, the network device sends the parameter information to the M user equipments, where the parameter information specifically includes:

a first random number seed, the first random number seed is a value preset by the system, and the network device may generate, according to the first random number seed and an algorithm for generating a value of each resource element (RE) type a type value corresponding to each resource block, all resource blocks use the same first random number seed when determining the type value, and one or more resource blocks may correspond to the same resource block type value;

Coupling width, which indicates that any one of the above M user equipments can access a 2w+1 type resource block, and the M user equipments use the same coupling width w, wherein the coupling width w is a natural number greater than or equal to 1. , for example, can be 1 or 2,;

An access degree distribution function of the user equipment, where the access degree distribution function is used to represent the probability of the access degree randomly selected by the user equipment when using the resource block, and the M user equipments may use the same access degree distribution function, or Different access degree distribution functions are used, and the application is not limited;

a second random number seed of the user equipment, where the second random number seed is also a preset value of the system, each user equipment of the M user equipments has a corresponding second random number seed, and the network equipment is used according to a certain The second random number seed of the user equipment and the access degree distribution function of the user equipment, the access degree d of the user equipment is generated, that is, the network device may randomly select d from the modulation symbol sequence corresponding to the data to be sent of the user equipment. And a modulation symbol, and transmitting the d modulation symbols by using the first resource block, where d is an integer greater than or equal to 0.

In the process of transmitting the foregoing parameter information, the network device may send the same parameter information to the M user equipments by using a broadcast form. It should be understood that the network device may also send the foregoing parameters to user equipments other than the M user equipments. Information, this application is not limited to this.

Therefore, the network device can implement the symmetry of the information by sending the foregoing parameter information to the user equipment, and the user equipment can generate the same factor map as the network device side according to the foregoing information, so as to facilitate subsequent decoding.

In step 220, using the first random number seed and the coupling width, the type value of the first resource block may be determined, according to the type value, and the access degree distribution function of one user equipment of the M user equipments, the one user. The second random number seed of the device may determine, from the plurality of modulation symbols corresponding to the data to be sent of the one user equipment, the second modulation symbol that is expected to be sent on the first resource block. The second set of modulation symbols includes a plurality of such second modulation symbols. When transmitting on the first resource block, all the second modulation symbols in the second modulation symbol set need to be linearly superposed to obtain a first modulation symbol. The first modulation symbol is finally transmitted through the first resource block.

It should be understood that one of the above M user equipments may be any one of the M user equipments.

Therefore, the embodiment of the present application can increase the number of accesses of the user equipment in the communication system and improve the coding efficiency by linearly superimposing the modulation symbols to be sent by the multiple user equipments on the same resource block and transmitting the linearly superimposed modulation symbols. .

Optionally, as an embodiment of the present application, the parameter information further includes a modulation and coding manner of the M user equipments, where the third modulation symbol set corresponding to the i th user equipment of the M user equipments is The modulation and coding mode of the i-th user equipment is processed, where i is a positive integer and 1 ≤ i ≤ M.

In the embodiment of the present application, the M user equipments adopt the same modulation and coding manner. Specifically, the third modulation symbol set of the user equipment refers to a set of data bit sequences that need to be transmitted by each user equipment, and a set of coded bit sequences is obtained, and then mapped to obtain a modulation symbol. For example, the coding mode may be Low Density Parity Check Code (LDPC) coding, and the user equipment's data bit sequence to be transmitted is encoded to obtain a coded bit sequence. In the coding process, the network device may also be used. Set for the user When the data is LDPC encoded, the code rate is selected to adapt to different channel states. For example, a (3, 6) regular LDPC code with a code rate of 0.5 can be selected by default; a modulation symbol obtained by modulating the bit sequence after modulation The set is the third modulation symbol set of the user equipment. For example, the modulation mode may be a linear modulation process such as Binary Phase Shift Keying (BPSK). It should be understood that the application is not limited to the enumerated coding mode. And modulation method.

Optionally, as an embodiment of the present application, the foregoing M user equipments are a group of user equipments of the N groups of user equipments, and the network equipment sends the first modulation symbols on the first resource block, including: acquiring N groups of user equipments. a resource block type identification algorithm, wherein the resource block type identification algorithm is configured to identify a type value of the resource block according to the coupling width w, where the coupling width w is used to represent that any one of the N sets of user equipments can use the maximum 2w+ A class 1 resource block, w is an integer greater than or equal to 0, and N is a positive integer greater than 1; according to the resource block type identification algorithm, determining a type value t of the first resource block, {t:t∈Z, 1-w ≤ t ≤ N + w}.

Specifically, the upper resource block type identification algorithm may be an algorithm program for uniformly and randomly selecting an element from a set, which has a fixed first random number seed. The network device determines the type t of the current resource block by using the resource block type identifier, that is, by using the resource block type identification algorithm, an element can be randomly selected in the set {1-w, N+w} as the type of the current resource block. t.

It should be understood that the network device needs to send data to the N groups of user equipments, and the M user equipments are any one of the N groups of user equipments.

Therefore, by using the resource block type identification algorithm to select an element from the set {1-w, N+w} as the current resource block type t, a mapping relationship between the current resource block and the N sets of user equipment can be established, that is, a mapping is formed. The spatially coupled coded spatial coupler, the correspondence between the N sets of user equipments and the 1-w type resource blocks to the N+w-1 type resource blocks is as shown in FIG. 3, and when the user equipment knows the mapping relationship, the mapping may be performed. The relationship is decoded.

Optionally, as an embodiment of the present application, the network device sends the first modulation symbol on the first resource block, and further includes: determining that the upper M user equipments are the t+i group user equipments of the N groups of user equipments, where , {t+i:i∈Z,|i|≤w,t+i∈{1,2,...N}}; with probability

Deselecting d _t+i modulation symbols from the set of modulation symbols corresponding to the t+i group of user equipments, and determining to randomly use elements in the second modulation symbol set of the first resource block, where t+ The access degree distribution function ρ _t+i (x) of the i-group user equipment is determined by the maximum modulation symbol number allowed by the resource block of the coupling width and the type value t, wherein

0 ≤ d _{t + i ≤} N _{t + i} , N _{t + i} represents the number of modulation symbols in the third modulation symbol set of the t+i group user equipment, and N _t+i is a positive integer greater than or equal to 1 .

That is, when the t+i group user equipment (ie, the above M user equipments) in the N sets of user equipments satisfy the set relationship {t+i: i∈Z, |i|≤w, t+i∈{1 , 2, ... N}}, can access the current resource block of resource block type t, and the network device according to the access degree distribution function ρ _t+i (x) of the t+i group user equipment, with probability

Randomly selecting d _t+i from the first modulation symbol set of the _{t+i to} randomly access the resource block.

Specifically, for example, the access degree distribution function of the t+i group user equipment is

N _t+i represents the number of first modulation symbols in the first modulation symbol set of the t+i group user equipment, and D _t is the maximum number of first modulation symbols allowed to be accessed by the resource block numbered t.

In other words, for any resource block, the network device first needs to confirm whether the t+i group user equipment satisfies {t+i:i∈Z,|i|≤w, t+i∈{1,2,...N The requirement of }}; if the requirement is met, the first modulation symbol of the t+i group user equipment is randomly accessed according to the access degree distribution; otherwise, the silence is maintained on the resource block. The access process naturally forms a special spatial coupling, which is beneficial to increase the performance of the Belief Propagation (BP) decoding algorithm and the overall performance of the system.

Further, since the linear superposition coding manner of the data bit sequence to be transmitted of the M user equipments is performed on the first resource block, the amount may be different by using an access degree distribution function of the M user equipments. User equipment provides different Quality of Service (QoS).

Optionally, as an embodiment of the present application, the N sets of user equipments may be sequentially numbered according to the channel state of each group of user equipments of the N sets of user equipments, and the number set of the N sets of user equipments is obtained. ,...,N}.

It should be understood that the N-group of user equipments may be numbered in other numbering manners, as long as the numbering manners for establishing the mapping relationship between the N-group user equipment and the resource block type are within the protection scope of the present application.

Optionally, as an embodiment of the present application, the channel states of each group of user equipments in the foregoing N groups of user equipments are the same and/or the quality of service QoS requirements of each group of user equipments in the foregoing N groups of user equipments are the same.

That is to say, each group of user equipments of the N groups of user equipments may be user equipments whose channel state is within a certain threshold interval, or user equipments whose quality of service (QoS) requirements are within the first range. It should be understood that the selection policy of selecting N sets of user equipments may also be other feasible manners, and the application is not limited thereto.

Optionally, as an embodiment of the present application, the method further includes: receiving an acknowledgment message of the S user equipments of the M user equipments, where the acknowledgment message is used to indicate that the user equipment is successfully decoded, where S is a positive integer. 1 ≤ S ≤ M; therefore, the second modulation symbol is composed of a first random number seed, the coupling width, an access degree distribution function of one user equipment of the M user equipments, data to be transmitted of the one user equipment, and the The second random number seed of the user equipment is determined, specifically: the second modulation symbol in the second modulation symbol set is the first random number seed, the coupling width, and the access degree of one of the MS user equipments. The distribution function, the data to be sent of one of the MS user equipments, and the second random number seed of the one user equipment are determined.

Specifically, after the network device receives the ACK information of the S user equipments, the second modulation symbol set participating in the linear superposition coding is adjusted, and the modulation symbols in the third modulation symbol set of each user equipment of the S user equipments are The linear superposition coding is no longer involved, that is, the elements in the third modulation symbol set of the S user equipments are no longer in the second modulation coding set.

Specifically, when all of the N sets of user equipments are successfully decoded, the spatial coupler structure needs to be adjusted accordingly. The corresponding spatial coupler structure adjustment diagram is as shown in FIG. 4, and the network device needs to send data to the N-1 group user equipment. At this time, the N-1 group user equipment and the 1-w type resource block to N+w-1 The correspondence of class resource blocks is shown in the figure.

Optionally, as an embodiment of the present application, the method further includes: sending, to the user equipment, indication information, where the indication information is used to indicate that the S user equipments are successfully decoded.

For example, specifically, the indication information is a data packet transmitted in a Downlink Control Channel (CCH), and it should be understood that the present application is not limited thereto. In order to let other users know which users are successfully decoded, the network device carries the decoding status of each user in the frame header information in the process of transmitting the data packet, and each user corresponds to one bit information, if the user Upon successful decoding, the corresponding bit identification changes from the initial 0 to 1. As long as the user decodes the frame header information, the structure of the decoding coupler can be adjusted accordingly.

Therefore, the network device side only needs to inform other user equipments which user equipment is translated to enable other user equipments to synchronize the coding factor map. This adjustment algorithm allows power to be distributed to other user devices that are not translated, thereby facilitating the faster translation of other user devices, thereby increasing system transmission performance.

Therefore, the embodiment of the present application can increase the number of accesses of the user equipment in the communication system and improve the coding efficiency by linearly superimposing and transmitting the modulation symbols to be sent by the multiple user equipments on the same resource block.

FIG. 5 is a schematic flowchart of a communication method according to another embodiment of the present application. The execution body of the method is a user equipment, as shown in FIG. 5, the method includes:

Step 510: The user equipment receives the parameter information sent by the network device, where the parameter information includes: a first random number seed, a coupling width, an access degree distribution function of the M user equipments, and a second random number corresponding to each of the M user equipments. a seed, where M is a positive integer greater than or equal to 2, wherein the first random number seed is used to generate a type value corresponding to the resource block, the coupling width being used to represent the number of types of resource blocks that the user equipment can use at most The access degree distribution function is used to represent the probability of the access degree randomly selected by the user equipment when the resource block is used, and the second random number seed is used to generate the access degree.

Step 520: The user equipment receives a first modulation symbol on a first resource block, where the first modulation symbol is linearly superposed by using all second modulation symbols in a second modulation symbol set of the first resource block. a modulation symbol, the second modulation symbol, a first random number seed, a coupling width, an access degree distribution function of one of the M user equipments, a data to be transmitted of the one user equipment, and a user equipment The second random number seed is determined.

Step 530: The user equipment decodes the first modulation symbol according to the parameter information to obtain a data bit sequence of the user equipment.

For a description of the related concepts of the first random number seed, the coupling width, the access degree distribution function, the second random number seed, and the first modulation symbol, refer to the embodiment shown in FIG. 2, and details are not described herein again.

Therefore, the embodiment of the present application can improve the transmission efficiency and increase the user by connecting the first modulation symbols of the M user equipments to the same resource block, performing linear superposition coding on the resource blocks, and transmitting the resource blocks through the resource blocks. The number of access devices.

Optionally, as an embodiment of the present application, the foregoing parameter information further includes a modulation and coding manner of the M user equipments, where the user equipment decodes the first modulation symbol according to the parameter information to obtain a data bit sequence of the user equipment, including: a user. And the second random number seed used by the device to generate the access degree according to the coupling width and the first random number seed, the access degree distribution function of each user equipment of the M user equipments, and the user equipment of each of the M user equipments, a modulation and coding scheme of each of the M user equipments, generating a factor map required for decoding; and decoding the first modulation symbols according to the factor graph to obtain a data bit sequence of the user equipment.

It should be understood that the M user equipments are only one of the N groups of user equipments to be sent by the network equipment. Therefore, the user equipment in this embodiment of the present application needs to receive each of the remaining N-1 group of user equipments. Parameter information corresponding to the device.

According to the above information, a linear superposition relationship in the second modulation symbol set of each user equipment can be obtained, and each user equipment coding verification relationship and the factor graph required for decoding can be obtained, for example, when LDPC coding is adopted. The factor graph may specifically be a Tanner graph.

Optionally, as an embodiment of the present application, the method further includes: when the user equipment is successfully decoded, sending an acknowledgement message to the network device.

Optionally, as an embodiment of the present application, the method further includes: when the user equipment is successfully decoded, sending an acknowledgement message to the network device.

Therefore, in the embodiment of the present application, by adding the modulation symbols of the multiple user equipments to the same resource block, after the resource blocks are linearly superimposed and the linearly superimposed modulation symbols are sent through the resource blocks, the transmission efficiency can be improved. Increase the number of accesses to user devices.

Figure 6 is a system block diagram of one embodiment of the present application.

As shown in FIG. 6, the network device sends parameter information to the N groups of user equipments, where the parameter information includes: a first random number seed, a coupling width, an access degree distribution function of each user equipment of the N groups of user equipments, and each user. a second random number seed of the device; the network device sends the first modulation symbol on the resource block by using the resource block corresponding to the N sets of user equipment, specifically, for example, the jth group user equipment in the N group of user equipments Corresponding jth resource block, transmitting a first modulation symbol obtained by the data of the jth user equipment to be transmitted, where 1≤j≤N.

Optionally, the data bit sequence of each user equipment in the user equipment group 1 to the user equipment group N passes through a respective encoder, and then undergoes symbol mapping to obtain a respective three modulation symbol set of each user equipment.

Further, when the coupling width of the N sets of user equipments is w, each of the N sets of user equipments can randomly select one or more modulation symbols to access up to 2w according to the access degree distribution function of the user equipment. a +1 type resource block; the network device is capable of determining, according to the type value and the coupling width of the current resource block, at least one group of user equipments that can use the current resource block, for example, when determining the N group of user equipments When the jth group of user equipments can access the current resource block, the network device can obtain the access degree distribution function of each user equipment in the jth group of user equipments, and each user equipment of the jth group of user equipments In the third set of modulation symbols, one or more modulation symbols randomly accessed on the current resource block are selected to obtain a second modulation symbol set.

Specifically, the current resource block type is determined by the resource block type identification algorithm, and all the modulation symbols in the second set of symbols are linearly superposed to obtain a linearly superposed first modulation symbol, and the linearity is sent on the current resource block. The first modulation symbol after superposition. Therefore, the mapping relationship between the first modulation symbols of the N sets of user equipments and the N sets of user equipments and the randomly accessed resource blocks constitutes a spatial coupler.

Further, the linearly superimposed and encoded modulation symbols are sent to each of the N sets of user equipments through the channel time-frequency resource block, and after each user equipment performs channel demodulation, the encoder verification relationship may be performed according to the encoder, and a factor graph formed by a linear superposition relationship between modulation symbols in a third modulation symbol set of each user equipment, and performing multi-user detection decoding on the factor graph, and stopping decoding if the user equipment successfully translates its own data And feed back the ACK signal to the network device.

After receiving the ACK signal of the user equipment, the network device immediately adjusts the coding parameters of the space coupler, continues to perform linear superposition coding on the first modulation symbols of the remaining user equipment, and repeats the above transmission process until receiving ACKs of all user equipments. .

The specific steps of the embodiment of the present application correspond to the corresponding steps of the embodiment shown in FIG. 2 or FIG. 5, and are not described herein again for the sake of brevity.

Therefore, since each resource block can linearly superimpose modulation symbols of a plurality of users, it is possible to access more users, and since linear superposition coding is employed, higher coding efficiency can be obtained, and, in addition, The random access degree distribution function of the group of user equipments, so that different QoS services can be provided for different user equipments.

Figure 7 is a schematic flow diagram of one embodiment of the present application. As shown in Figure 7, the steps are as follows:

701. Select a user group, that is, the network device determines the user group according to the channel state of the user equipment, selects a user equipment in a certain channel state range as a group, for example, finally determines N user groups.

702. Design an LDPC code, an access degree distribution function, a user group number, and a random number seed. Specifically, the network device performs the design of the LDPC code and the access degree distribution function and the coupling width w of each group of user equipments, numbers each group of user equipments, selects a random number seed of the resource type identification algorithm, and the like.

703. Broadcast parameter information, the network device sends the parameter information designed or determined in step 702 to all user equipments, so that the user equipment generates a Tanner graph according to the parameter information.

704. Encode and symbolize data to be sent of each user equipment. That is to say, the network device needs to encode the data bit sequence of each user equipment, and obtain a coded bit sequence for symbol mapping to obtain a corresponding third modulation symbol set.

For example, if the network device intends to send data to the N sets of user equipments, the number of the N sets of user equipments is first {1, 2, . . . N}; secondly, the network equipment needs to perform the data bit sequence of each user equipment. The LDPC code is encoded to obtain a coded bit sequence. Finally, the coded bit sequence is subjected to linear modulation mapping such as BPSK to obtain a corresponding third modulation symbol set.

704. Perform linear superposition coding on data of each user equipment according to the resource block type value.

Specifically, for each resource block, the network device determines the type value of the resource block according to the resource block type identification algorithm and the number of random number seeds determined in step 702, and the resource block type identification algorithm may be referred to as a resource block type identifier. Therefore, the resource block type marker can randomly select a t from {1-w, ...1, 2, ..., N+w} as the resource block type value.

Further, for the resource block of the type value t, for any i ∈ {-w, -w+1, ... w}, the network device can be allocated according to the access degree corresponding to the user equipment numbered t+i Function, randomly selecting the access degree d _i : if i satisfies t+i ∈ {1, 2, . . . N}, the network device randomly selects d _i from the third modulation symbol set of the user equipment numbered t+ _i Modulation symbols, the d _i modulation symbols can use a resource block of type t, constitute a second modulation symbol set of the t+i user equipment; and finally all of the resource blocks capable of using a type value t The modulation symbols are linearly added together to obtain a first modulation symbol, and the superposed result (ie, the first modulation symbol) is transmitted through the resource block.

Step 706: Broadcast the first modulation symbols that are linearly superimposed by the N sets of user equipments.

Step 707: After receiving the first superposed symbol, the user equipment is decoded, and after receiving the first modulation symbol, the user equipment demodulates and obtains soft demodulation information corresponding to each resource block, and then according to the LDPC encoder of the user equipment. The check relationship, the linear superposition relationship between the modulation symbols in the second modulation symbol set of each user equipment, constitute a unified Tanner graph, and perform belief propagation (BP) iteration on the factor graph Multi-user detection and decoding.

Step 708: If the user equipment successfully decodes its own data, the decoding is stopped, and the ACK signal is fed back to the network device.

Step 709: After receiving the ACK signal of the user equipment, the network device immediately adjusts the coding parameters of the spatial coupler, continues to perform superposition coding on the data of the remaining user equipments, and transmits the encoded data until an ACK of all users is received.

Step 710: The network device stops encoding after receiving the ACK signal of all user equipments.

It should be noted that the specific steps of the embodiment of the present application correspond to the corresponding steps of the embodiment shown in FIG. 2 or FIG. 5, and are not described herein again for the sake of brevity. It should also be understood that some of the steps in steps 701 to 710 above are optional steps for the integrity of the solution, and are not essential steps of the embodiments of the present application.

Therefore, since each resource block can linearly superimpose modulation symbols of a plurality of user equipments, it is possible to access a larger number of users, and since linear superposition coding is employed, higher coding efficiency can be obtained, and, in addition, The random access degree distribution function of each group of user equipments can thus provide different QoS services for different user equipments.

FIG. 8 is a schematic block diagram of a network device according to an embodiment of the present application. As shown in FIG. 8, the network device 800 includes:

The determining unit 810 is configured to determine that the network device sends the parameter information to the M user equipments, where M is a positive integer greater than or equal to 2, the parameter information includes: a first random number seed, a coupling width, An access degree distribution function of the M user equipments and a second random number seed of the M user equipments, where the first random number seed is used to generate a type value corresponding to the resource block, where the coupling width is used. And indicating a number of types of resource blocks that the user equipment can use at most, the access degree distribution function is used to represent a probability of a randomly selected degree of access when the user equipment uses the resource block, and the second random number seed is used to generate Access degree.

The sending unit 820 is configured to send the parameter information to the M user equipments.

The sending unit 820 is further configured to: send, on a first resource block, a first modulation symbol, where the first modulation symbol is a second of all second modulation symbol sets that can use the first resource block a modulation symbol obtained by linearly superimposing the modulation symbol, the second modulation symbol by the first random number seed, the coupling width, an access degree distribution function of one of the M user equipments, The data to be transmitted of one user equipment and the second random number seed of the one user equipment are determined.

Therefore, in the embodiment of the present application, by adding the modulation symbols of the multiple user equipments to the same resource block, after the resource blocks are linearly superimposed and the linearly superimposed modulation symbols are sent through the resource blocks, the transmission efficiency can be improved. Increase the number of accesses to user devices.

Optionally, as an embodiment of the present application, the parameter information further includes a modulation and coding manner of the M user equipment, where a third modulation symbol corresponding to the i-th user equipment of the M user equipments The set is obtained according to the modulation and coding manner of the i-th user equipment, where i is a positive integer and 1≤i≤M.

Optionally, as an embodiment of the present application, the determining unit 810 is specifically configured to: acquire the resource block type identification algorithm of the N sets of user equipment, where the resource block type identification algorithm is used according to the The coupling width w identifies a type value of the resource block, and the coupling width w is used to represent that any one of the N sets of user equipments can use a 2w+1 type resource block, and w is an integer greater than or equal to 0. a positive integer greater than one; determining a type value t of the first resource block according to the resource block type identification algorithm, {t:t∈Z, 1-w≤t≤N+w}.

Optionally, as an embodiment of the present application, the determining unit 810 is further configured to: determine that the M user equipments are the t+i group user equipments of the N groups of user equipments, where {t+i: i∈Z,|i|≤w,t+i∈{1,2,...N}}; with probability

And selecting, from the modulation symbol set corresponding to the t+i group of user equipments, d _t+i modulation symbols, and determining to randomly use elements in the second modulation symbol set of the first resource block, where The access degree distribution function ρ _t+i (x) of the t+i group user equipment is determined by the coupling width and the maximum number of modulation symbols allowed by the resource block of the type value t, wherein

0 ≤ d _{t + i ≤} N _{t + i} , N _{t + i} represents the number of modulation symbols in the third modulation symbol set of the t+i group user equipment, and N _t+i is a positive integer greater than or equal to 1 .

Optionally, as an embodiment of the present application, a channel state of each group of user equipments of the N groups of user equipments is the same and/or a quality of service QoS requirement of each group of user equipments of the group of user equipments is the same.

Optionally, as an embodiment of the present application, the network device 800 further includes: a receiving unit, where the receiving unit is specifically configured to receive an acknowledgment message of S user equipments of the M user equipments, where the acknowledgment message is used by Demonstrating that the user equipment is successfully decoded, wherein S is a positive integer, 1≤S≤M; the second modulation symbol is by the first random number seed, the coupling width, one of the M user equipments The access degree distribution function of the user equipment, the data to be sent of the one user equipment, and the second random number seed of the one user equipment are determined by: The second modulation symbol in the second modulation symbol set is used by the first random number seed, the coupling width, an access degree distribution function of one of the MS user equipments, and the MS user equipment The data to be transmitted of one user equipment and the second random number seed of the one user equipment are determined.

The sending unit 820 is further configured to send the indication information to the user equipment, where the indication information is used to indicate that the S user equipments are successfully decoded.

It should be understood that the communication entity 800 in accordance with embodiments of the present application may correspond to performing the communication entities in the method 200 in the embodiments of the present application, and that the above and other operations and/or functions of the various units in the communication entity 800 are respectively The corresponding process corresponding to the network device in the method in 2 is not described here for brevity.

Therefore, in the embodiment of the present application, by adding the modulation symbols of the multiple user equipments to the same resource block, after the resource blocks are linearly superimposed and the linearly superimposed modulation symbols are sent through the resource blocks, the transmission efficiency can be improved. Increase the number of accesses to user devices.

FIG. 9 is a schematic block diagram of a user equipment according to an embodiment of the present application. As shown in FIG. 9, the user equipment 900 includes:

The receiving unit 910 is configured to receive parameter information that is sent by the network device, where the parameter information includes: a first random number seed, a coupling width, an access degree distribution function of the M user equipments, and the M users. Each of the devices corresponds to a second random number seed, where M is a positive integer greater than or equal to 2, wherein the first random number seed is used to generate a type value corresponding to the resource block, and the coupling width is used to represent the user equipment a maximum number of types of resource blocks that can be used, the access degree distribution function being used to characterize a probability of randomly selecting an access degree when the user equipment uses the resource block, the second random number seed being used to generate the Access degree.

The receiving unit 910 is further configured to receive a first modulation symbol on a first resource block, where the first modulation symbol is a second modulation in a second set of second modulation symbols that can use the first resource block. The symbols are linearly superimposed to obtain a modulation symbol, the second modulation symbol by the first random number seed, the coupling width, an access degree distribution function of one of the M user equipments, the one The data to be transmitted of the user equipment and the second random number seed of the one user equipment are determined.

The decoding unit 920 is configured to decode the first modulation symbol according to the parameter information to obtain a data bit sequence of the user equipment.

Optionally, as an embodiment of the present application, the decoding unit 920 is further configured to: the user equipment, according to the coupling width, the first random number seed, each user equipment of the M user equipments An access degree distribution function, a second random number seed for generating access degree for each user equipment of the M user equipments, and a modulation and coding manner of each user equipment of the M user equipments, generating Generating a required factor map; decoding the first modulation symbol according to the factor graph to obtain a data bit sequence of the user equipment.

Optionally, as an embodiment of the present application, the user equipment further includes: a sending unit, where the sending unit is configured to send an acknowledgement message to the network device when the user equipment is successfully decoded.

It should be understood that the coordination device 900 according to the embodiment of the present application may correspond to the user equipment in the method 500 in the embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the coordination device 900 are respectively implemented in order to implement the map. The corresponding process corresponding to the communication entity device in the method in FIG. 5 is not repeated here for brevity.

Therefore, in the embodiment of the present application, by adding the modulation symbols of the multiple user equipments to the same resource block, after the resource blocks are linearly superimposed and the linearly superimposed modulation symbols are sent through the resource blocks, the transmission efficiency can be improved. Increase the number of accesses to user devices.

FIG. 10 is a network device of another embodiment of the present application. The network device 1000 of Figure 10 can be used to implement the above method Each step and method in the examples. As shown in FIG. 10, the network device 1000 includes an antenna 1001, a transmitter 1002, a receiver 1003, a processor 1004, and a memory 1005. The processor 1004 controls the operation of the network device 1000 and can be used to process signals. Memory 1005 can include read only memory and random access memory and provides instructions and data to processor 1004. Transmitter 1002 and receiver 1003 can be coupled to antenna 1001. The various components of network device 1000 are coupled together by a bus system 1009, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 1009 in the figure. For example, network device 1000 can be base station 102 shown in FIG. The network device 1000 can implement the corresponding processes in the foregoing method embodiments. To avoid repetition, details are not described herein again.

It should be understood that, in the embodiment of the present application, the processor 1001 may be a central processing unit (CPU), and the processor 1001 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 1002 can include read only memory and random access memory and provides instructions and data to the processor 11. A portion of the memory 1002 may also include a non-volatile random access memory. For example, the memory 1002 can also store information of the device type.

The bus system 1003 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as the bus system 1103 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1001 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

11 is a network device of another embodiment of the present application. The user equipment 1100 of FIG. 11 can be used to implement the steps and methods in the foregoing method embodiments. In the embodiment of FIG. 11, the terminal device 1100 includes an antenna 1101, a transmitter 1102, a receiver 1103, a processor 1104, and a memory 1105. The processor 1104 controls the operation of the terminal device 110 and can be used to process signals. Memory 1105 can include read only memory and random access memory and provides instructions and data to processor 1104. Transmitter 1102 and receiver 1103 can be coupled to antenna 1101. The various components of network device 1100 are coupled together by a bus system 1109, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as the bus system 1109 in the figure. For example, network device 1100 can be access terminal 116 or access terminal 122 shown in FIG. The network device 1100 can implement the corresponding processes in the foregoing method embodiments. To avoid repetition, details are not described herein again.

It should be understood that, in the embodiment of the present application, the processor 1101 may be a central processing unit (CPU), and the processor 11 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 1102 can include read only memory and random access memory and provides instructions to the processor 11 and data. A portion of the memory 1102 can also include a non-volatile random access memory. For example, the memory 1102 can also store information of the device type.

The bus system 1103 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as the bus system 1103 in the figure.

In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1101 or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be stated in the scope of protection of the claims. Prevail.

Claims (10)

1. A communication method, comprising:

   The network device sends the parameter information to the M user equipments, where M is a positive integer greater than or equal to 2. The parameter information includes: a first random number seed, a coupling width, and an access degree distribution function of the M user equipments. And a second random number seed of the M user equipments, where the first random number seed is used to generate a type value corresponding to the resource block, where the coupling width is used to represent a type of the resource block that the user equipment can use at most The access degree distribution function is used to represent a probability of a randomly selected degree of access when the user equipment uses the resource block, and the second random number seed is used to generate an access degree;

   The network device transmits a first modulation symbol on a first resource block, wherein the first modulation symbol is linearly superposed by all second modulation symbols in a second modulation symbol set capable of using the first resource block a modulation symbol obtained by the first random number seed, the coupling width, an access degree distribution function of one of the M user equipments, and a waiting for the one user equipment Transmitting data and a second random number seed determination of the one user device.
2. The method according to claim 1, wherein the parameter information further comprises a modulation and coding mode of the M user equipment, wherein a third of the M user equipments corresponds to a third user equipment The modulation symbol set is processed according to the modulation and coding manner of the i-th user equipment, where i is a positive integer and 1≤i≤M.
3. The method according to claim 2, wherein the M user equipments are a group of user equipments of the N groups of user equipments, and the network equipment sends the first modulation symbols on the first resource block, including:

   Obtaining the resource block type identification algorithm of the N sets of user equipment, wherein the resource block type identification algorithm is configured to identify a type value of a resource block according to the coupling width w, where the coupling width w is used to represent the Any one of the N sets of user equipments can use a 2w+1 type resource block, w is an integer greater than or equal to 0, and N is a positive integer greater than 1.

   Determining, according to the resource block type identification algorithm, a type value t of the first resource block, {t:t∈Z, 1-w≤t≤N+w}.
4. The method according to claim 3, wherein the transmitting, by the network device, the first modulation symbol on the first resource block, further comprising:

   Determining that the M user equipments are the t+i group user equipments of the N groups of user equipments, where {t+i:i∈Z,|i|≤w, t+i∈{1,2,... N}};

   Probability

   

   And selecting, from the modulation symbol set corresponding to the t+i group of user equipments, d _t+i modulation symbols, and determining to randomly use elements in the second modulation symbol set of the first resource block, where The access degree distribution function ρ _t+i (x) of the t+i group user equipment is determined by the coupling width and the maximum number of modulation symbols allowed by the resource block of the type value t, wherein

   

   0 ≤ d _{t + i ≤} N _{t + i} , N _{t + i} represents the number of modulation symbols in the third modulation symbol set of the t+i group user equipment, and N _t+i is a positive integer greater than or equal to 1 .
5. The method according to claim 3 or 4, wherein the channel states of each group of the N sets of user equipments are the same and/or the quality of service QoS requirements of each group of the N sets of user equipments are the same .
6. The method according to any one of claims 1 to 5, wherein the method further comprises:

   Receiving an acknowledgment message of the S user equipments of the M user equipments, where the acknowledgment message is used to indicate that the user equipment is successfully decoded, where S is a positive integer, 1 ≤ S ≤ M;

   The second modulation symbol is used by the first random number seed, the coupling width, and the M user equipments The access degree distribution function of the user equipment, the data to be sent of the one user equipment, and the second random number seed of the one user equipment are determined by:

   The second modulation symbol in the second modulation symbol set is used by the first random number seed, the coupling width, an access degree distribution function of one user equipment of the MS user equipments, and the MS user equipments. The data to be sent of the one user equipment and the second random number seed of the one user equipment are determined.
7. The method of claim 6 wherein the method further comprises:

   Sending indication information to the user equipment, where the indication information is used to indicate that the S user equipments are successfully decoded.
8. A communication method, comprising:

   The user equipment receives the parameter information sent by the network device, where the parameter information includes: a first random number seed, a coupling width, an access degree distribution function of the M user equipments, and a second random number seed corresponding to each of the M user equipments. And M is a positive integer greater than or equal to 2, wherein the first random number seed is used to generate a type value corresponding to the resource block, and the coupling width is used to represent a type of the resource block that the user equipment can use at most a quantity, the access degree distribution function is used to represent a probability of the access degree randomly selected by the user equipment when the resource block is used, and the second random number seed is used to generate the access degree;

   The user equipment receives a first modulation symbol on a first resource block, wherein the first modulation symbol is linearly superposed by all second modulation symbols in a second modulation symbol set capable of using the first resource block a modulation symbol obtained by the first random number seed, the coupling width, an access degree distribution function of one of the M user equipments, and a waiting for the one user equipment Transmitting data and a second random number seed determination of the one user device.

   Decoding, by the user equipment, the first modulation symbol according to the parameter information to obtain a data bit sequence of the user equipment.
9. The method according to claim 8, wherein the parameter information further includes a modulation and coding manner of the M user equipments, and the user equipment decodes the first modulation symbols according to the parameter information. The data bit sequence of the user equipment includes:

   The user equipment is used according to the coupling width and the first random number seed, the access degree distribution function of each user equipment of the M user equipments, and the user equipment of the M user equipments. Generating a second random number seed of the access degree, a modulation and coding mode of each user equipment of the M user equipments, and generating a factor map required for decoding;

   Decoding the first modulation symbol according to the factor graph to obtain a data bit sequence of the user equipment.
10. The method according to claim 8 or 9, wherein the method further comprises:

    When the user equipment is successfully decoded, an acknowledgement message is sent to the network device.

Images