CN106922023A - A kind of data transmission method, equipment and system - Google Patents

A kind of data transmission method, equipment and system Download PDF

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Publication number
CN106922023A
CN106922023A CN201510992510.6A CN201510992510A CN106922023A CN 106922023 A CN106922023 A CN 106922023A CN 201510992510 A CN201510992510 A CN 201510992510A CN 106922023 A CN106922023 A CN 106922023A
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China
Prior art keywords
user equipment
data
degrees
base station
distribution function
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CN201510992510.6A
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CN106922023B (en
Inventor
张朝阳
王献斌
张昱
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Abstract

The invention discloses a kind of data transmission method, equipment and system, for solving the problems, such as that traditional multiple access mechanism has that resource utilization is high, implementation complexity is high.Sending method includes：User equipment receives the access number of degrees distribution function and random number seed of base station configuration；When it is determined that needing to send data, following data transmission procedure is repeated：For each Resource Block, according to access number of degrees distribution function and random number seed, generation accesses number of degrees d, d modulation symbol is randomly choosed from needing to send the corresponding modulation symbol sequence of data, and send selected d modulation symbol to the base station by the Resource Block." registration " process larger due to eliminating signaling consumption, so as to reduce time delay, improves system effectiveness.

Description

A kind of data transmission method, equipment and system
Technical field
The present invention relates to communication technical field, more particularly to a kind of data transmission method, equipment and system.
Background technology
With the development of Internet of Things, car networking and wireless self-organization network, cell densification is future network Trend.Extensive access (Massive Access) is one of typical scene of future network, its feature It is：One is potential accessing user's number larger (thousands of or even up to a million) and dynamic change；Two is service class Type is complicated, and data volume and delay requirement of different user transmission etc. have significant difference, and especially some are real-time It is high to delay requirement in controlling network；Three is access network architecture complexity, topological changeable, characteristic of channel dynamic Change.Scene is accessed extensive, accessing system there must be a high efficiency, low time delay, at lower cost Support the characteristics of magnanimity is linked.
In existing access system, sparse CDMA (Sparse Code Multiple Access, abbreviation SCMA), the nonopiate access system such as low-density spread spectrum (Low Density Spreading, abbreviation LDS) Principle be：User selects a subset from resource set of blocks, then oneself will need the data point for sending It is dispersed on the Resource Block that the subset is included, this dispersion process can be represented with a signature matrix.Due to base Side needs of standing design different signature matrixes as access customer number purpose changes, and implementation complexity is high, difficult Change violent situation to adapt to number of users.
In order to solve the above problems, it is proposed that multicarrier accesses (multi-carrier rateless without speed multiple access Multiple access, abbreviation MC-RMA) system, relative to SCMA systems, base station only need to Family is specified and accesses number of degrees distribution function, without the specific signature matrix of design, you can reach and SCMA The similar performance of system, and greatly reduce signaling consumption；Because decoding figure is sparse graph, can use The relatively low BP decoding algorithms of complexity are iterated detection decoding.But, MC-RMA systems need " note Volume " process, i.e. user needs oneself have data is activation and to base station Shen by random access procedure signals base Please resource be used for data is activation.It is more in burst small data packets business due to needing above-mentioned " registration " process Network in, system effectiveness can be caused low, and time delay is larger.
The content of the invention
A kind of data transmission method, equipment and system are the embodiment of the invention provides, it is traditional many for solving Access mechanism has that resource utilization is high, implementation complexity is high.
In a first aspect, a kind of data transmission method for uplink, the method includes：
User equipment receives the access number of degrees distribution function and random number seed of base station configuration, wherein, it is described to connect Enter number of degrees distribution function and access randomly selected access number of degrees during each Resource Block for characterizing user equipment Probability, the random number seed is used to generate the access number of degrees；
The user equipment repeats following data transmission procedure when it is determined that needing to send data：
For each Resource Block, according to access number of degrees distribution function and the random number seed, generation connects Enter number of degrees d, d modulation symbol is randomly choosed from needing to send the corresponding modulation symbol sequence of data, and Selected d modulation symbol is sent to the base station by the Resource Block, d is more than or equal to 0 Integer.
In possible implementation, the user equipment sends selected by the Resource Block to the base station After the d modulation symbol selected, the method also includes：
The user equipment receives the confirmation message of the base station feedback；
The user equipment stops sending data to the base station.
In possible implementation, the user equipment is from the corresponding modulation symbol sequence of data to be sent After d modulation symbol of random selection, also include：The user equipment carries out the d modulation symbol Linear, additive；
The user equipment sends selected d modulation symbol by the Resource Block, including：The use Family equipment sends the modulation symbol that linear, additive is obtained by the Resource Block.
A kind of second aspect, data receiver method, methods described includes：
Base station is that each user device configuration in network accesses number of degrees distribution function and random number seed, its In, the access number of degrees distribution function is used to characterize randomly selected when user equipment accesses each Resource Block connecing Enter the probability of the number of degrees, the random number seed is used to generate the access number of degrees；
After the base station is demodulated to the data for receiving, the access of each user equipment in network Number of degrees distribution function and random number seed, detect the user equipment for enlivening active states, and respectively to each The data that the user equipment of active states sends enter row decoding, and the user equipment for obtaining each active state sends Data, wherein, the user equipment of active states is the user equipment that actually have sent data.
In possible implementation, the access number of degrees distribution of each user equipment of the base station in network Function and random number seed, detect the user equipment of active states, and to each enliven active states respectively User equipment send data enter row decoding, obtain each active state user equipment send data, Including：
The access number of degrees distribution function and random number seed of each user equipment of the base station in network, Determine that each user equipment accesses the access number of degrees of each Resource Block；
The base station accesses the access number of degrees of each Resource Block according to each user equipment, in determining network The corresponding type pattern matrixes of each user equipment, wherein, the pattern matrixes are used to characterize user Corresponding relation between the modulation symbol of equipment transmission and the Resource Block for being used；
The corresponding pattern matrixes of each user equipment of the base station in network, are calculated by energy measuring Method, detects the user equipment of active states；
Each is lived respectively according to the corresponding pattern matrixes of user equipment of each active state the base station The data that the user equipment of the active states that jump sends enter row decoding, obtain the user equipment institute of each active state The data of transmission.
In possible implementation, the access number of degrees distribution of each user equipment of the base station in network Function and random number seed, detect the user equipment of active states, and to each enliven active states respectively User equipment send data enter row decoding, obtain each active state user equipment send data, Including：
The access number of degrees distribution function and random number seed of each user equipment of the base station in network, Determine that each user equipment accesses the access number of degrees of each Resource Block；
The base station accesses the access number of degrees of each Resource Block according to each user equipment, determines for characterizing The factor graph of the corresponding relation between data on each Resource Block and the Resource Block transmitted by user equipment；
The base station, using belief propagation BP algorithm, completes each and uses according to the factor graph by iteration The user equipment hair of the channel estimation, the detection of the user equipment of active states and active states of family equipment The decoding of the data sent, obtains the data that the user equipment of each active state sends.
In possible implementation, the base station obtain each active state user equipment send data it Afterwards, the method also includes：
User equipment feeding back confirmation message from the base station to successfully decoded active states so that the active The user equipment of state stops sending data to the base station.
In possible implementation, the method also includes：
Base station par of the user equipment of active states within the cycle for determine setting changes When, again for each user device configuration in network accesses number of degrees distribution function and/or random number seed.
Fourth aspect, a kind of user equipment, including：
Receiver module, access number of degrees distribution function and random number seed for receiving base station configuration, wherein, The access number of degrees distribution function accesses randomly selected access during each Resource Block for characterizing user equipment The probability of the number of degrees, the random number seed is used to generate the access number of degrees；
Data transmission blocks, for when it is determined that needing to send data, repeating following data transmission procedure：
For each Resource Block, according to access number of degrees distribution function and the random number seed, generation connects Enter number of degrees d, d modulation symbol is randomly choosed from needing to send the corresponding modulation symbol sequence of data, and Selected d modulation symbol is sent to the base station by the Resource Block, d is more than or equal to 0 Integer.
In possible implementation, the receiver module is additionally operable to：The confirmation for receiving the base station feedback disappears Breath；
The data transmission blocks are additionally operable to：Stop sending data to the base station.
Fourth aspect, another user equipment, including：Receiver, transmitter, processor and storage Device.Wherein：
The receiver receives data under the control of the processor；
The transmitter sends data under the control of the processor；
The processor is responsible for logical operation and treatment；
The memory includes internal memory and hard disk, can store the data that processor is used when operation is performed And program.
When the user equipment runs, the receiver receives base station and matches somebody with somebody under the control of the processor The access number of degrees distribution function and random number seed put, wherein, the access number of degrees distribution function is used to characterize User equipment accesses the randomly selected probability for accessing number of degrees during each Resource Block, and the random number seed is used for Generation accesses the number of degrees；
The processor reads the program in memory, and performs following process：It is determined that needing to send data When, repeat following data transmission procedure：For each Resource Block, according to the access number of degrees distribution letter Number and the random number seed, generation access number of degrees d, from needing to send the corresponding modulation symbol sequence of data D modulation symbol of middle random selection, and control the transmitter 82 to pass through the Resource Block to the base station Selected d modulation symbol is sent, d is the integer more than or equal to 0.
In possible implementation, the receiver receives the base station under the control of the processor The confirmation message of feedback；
The processor is it is determined that the receiver receives the confirmation message of the base station feedback, and triggering is described Transmitter stops sending data to the base station.
5th aspect, a kind of base station, including：
Configuration module, for accessing number of degrees distribution function and random number for each user device configuration in network Seed, wherein, the access number of degrees distribution function be used to characterizing user equipment access it is random during each Resource Block The probability of the access number of degrees of selection, the random number seed is used to generate the access number of degrees；
Processing module, after being demodulated to the data for receiving, each user equipment in network Access number of degrees distribution function and random number seed, detect the user equipment for enlivening active states, and respectively Row decoding is entered to the data that the user equipment of each active state sends, the user for obtaining each active state sets The data that preparation is sent, wherein, the user equipment of active states is the user equipment that actually have sent data.
In possible implementation, the processing module specifically for：
The access number of degrees distribution function and random number seed of each user equipment in network, determine every Individual user equipment accesses the access number of degrees of each Resource Block；
The access number of degrees of each Resource Block are accessed according to each user equipment, each user in network is determined The corresponding type pattern matrixes of equipment, wherein, the pattern matrixes are used to characterize user equipment transmission Modulation symbol and the Resource Block that is used between corresponding relation；
The corresponding pattern matrixes of each user equipment in network, by energy detection algorithm, detection Go out the user equipment of active states；
The corresponding pattern matrixes of user equipment according to each active state, enliven active to each respectively The data that the user equipment of state sends enter row decoding, obtain the number transmitted by the user equipment of each active state According to.
In possible implementation, the processing module specifically for：
The access number of degrees distribution function and random number seed of each user equipment in network, determine every Individual user equipment accesses the access number of degrees of each Resource Block；
The access number of degrees of each Resource Block are accessed according to each user equipment, is determined for characterizing each resource The factor graph of the corresponding relation between data on block and the Resource Block transmitted by user equipment；
According to the factor graph, using belief propagation BP algorithm, each user equipment is completed by iteration The data that the user equipment of channel estimation, the detection of the user equipment of active states and active states sends Decoding, obtain each active state user equipment send data.
In possible implementation, the processing module is additionally operable to：
To the user equipment feeding back confirmation message of successfully decoded active states, so that the use of the active states Family equipment stops sending data to the base station.
In possible implementation, the configuration module is additionally operable to：
When the par of the user equipment of active states changes within the cycle for determine setting, again For each user device configuration in network accesses number of degrees distribution function and/or random number seed.
6th aspect, another base station, including：Receiver, transmitter, processor and memory 104. Wherein：
The receiver receives data under the control of the processor；
The transmitter sends data under the control of the processor；
The processor is responsible for logical operation and treatment；
The memory includes internal memory and hard disk, can store the data that processor is used when operation is performed And program.
When the base station is run, the processor reads the program in memory, and performs following process：
For each user device configuration in network accesses number of degrees distribution function and random number seed, and control institute The access number of degrees distribution function and random number seed of transmitter send configuration are stated, wherein, the access number of degrees point Cloth function is used to characterize the probability that user equipment accesses randomly selected access number of degrees during each Resource Block, described Random number seed is used to generate the access number of degrees；
After being demodulated to the data that the receiver is received, each user equipment in network connects Enter number of degrees distribution function and random number seed, detect the user equipment of active states, and respectively to each The data that the user equipment of active states sends enter row decoding, and the user equipment for obtaining each active state sends Data, wherein, the user equipment of active states is the user equipment that actually have sent data.
In possible implementation, the processor reads the program in memory, specific to perform：
The access number of degrees distribution function and random number seed of each user equipment in network, determine every Individual user equipment accesses the access number of degrees of each Resource Block；
The access number of degrees of each Resource Block are accessed according to each user equipment, each user in network is determined The corresponding type pattern matrixes of equipment, wherein, the pattern matrixes are used to characterize user equipment transmission Modulation symbol and the Resource Block that is used between corresponding relation；
The corresponding pattern matrixes of each user equipment in network, by energy detection algorithm, detection Go out the user equipment of active states；
The corresponding pattern matrixes of user equipment according to each active state, enliven active to each respectively The data that the user equipment of state sends enter row decoding, obtain the number transmitted by the user equipment of each active state According to.
In possible implementation, the processor reads the program in memory, specific to perform：
The access number of degrees distribution function and random number seed of each user equipment in network, determine every Individual user equipment accesses the access number of degrees of each Resource Block；
The access number of degrees of each Resource Block are accessed according to each user equipment, is determined for characterizing each resource The factor graph of the corresponding relation between data on block and the Resource Block transmitted by user equipment；
According to the factor graph, using belief propagation BP algorithm, each user equipment is completed by iteration The data that the user equipment of channel estimation, the detection of the user equipment of active states and active states sends Decoding, obtain each active state user equipment send data.
In possible implementation, the processor reads the program in memory, also performs：
To the user equipment feeding back confirmation message of successfully decoded active states, so that the use of the active states Family equipment stops sending data to the base station.
In possible implementation, the processor reads the program in memory, also performs：
When the par of the user equipment of active states changes within the cycle for determine setting, again For each user device configuration in network accesses number of degrees distribution function and/or random number seed.
7th aspect, a kind of communication system, including：
Base station, for accessing number of degrees distribution function and random several for each user device configuration in network Son, wherein, the access number of degrees distribution function is used to characterize when user equipment accesses each Resource Block to select at random The probability of the access number of degrees selected, the random number seed is used to generate the access number of degrees；Data to receiving are entered After row demodulation, the access number of degrees distribution function and random number seed of each user equipment in network, inspection The user equipment for enlivening active states is measured, and the data for being sent to the user equipment of each active state respectively Enter row decoding, obtain the data that the user equipment of each active state sends, wherein, the user of active states Equipment is the user equipment that actually have sent data；
User equipment, access number of degrees distribution function and random number seed for receiving base station configuration；It is determined that When needing to send data, following data transmission procedure is repeated：For each Resource Block, connect according to described Enter number of degrees distribution function and the random number seed, generation accesses number of degrees d, transmission data are corresponding from needing D modulation symbol is randomly choosed in modulation symbol sequence, and institute is sent to the base station by the Resource Block D modulation symbol of selection, d is the integer more than or equal to 0.
Base station in the communication system can be the base station described in the 5th aspect, or the 6th aspect Described in shown base station；User equipment in ten years old communication systems can be the user described in the third aspect Equipment, or the user equipment described in fourth aspect.
In method and apparatus provided in an embodiment of the present invention, base station is in advance each user device configuration in network Number of degrees distribution function and random number seed are accessed, so that user equipment is when there is data to need to send, for every Individual Resource Block, according to access number of degrees distribution function and the random number seed, generation accesses number of degrees d, D modulation symbol is randomly choosed from the corresponding modulation symbol sequence of data to be sent, and by the resource Block sends selected d modulation symbol, and repeats said process.Base station is receiving active states User equipment send data after, first demodulate the data for receiving, set further according to each user in network Standby access number of degrees distribution function and random number seed, respectively to the demodulation of the user equipment of each active state after Data enter row decoding, finally obtain each active state user equipment send data.Compared to tradition MC-RMA systems, " registration " process larger due to eliminating signaling consumption, so as to reduce time delay And improve system effectiveness.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the data transmission method for uplink in the embodiment of the present invention one；
Fig. 2 is the data transmission system block diagram in the embodiment of the present invention two；
Fig. 3 is a kind of schematic flow sheet of the data transfer in the embodiment of the present invention two；
Fig. 4 is the data transmission system block diagram in the embodiment of the present invention three；
Fig. 5 is a kind of schematic flow sheet of the data transfer in the embodiment of the present invention three；
Fig. 6 is the schematic diagram of the factor graph in the embodiment of the present invention three；
Fig. 7 is a kind of schematic diagram of the user equipment in the embodiment of the present invention four；
Fig. 8 is a kind of schematic diagram of the user equipment in the embodiment of the present invention five；
Fig. 9 is a kind of schematic diagram of the base station in the embodiment of the present invention six；
Figure 10 is a kind of schematic diagram of the base station in the embodiment of the present invention seven；
Figure 11 is a kind of schematic diagram of the communication system in the embodiment of the present invention eight.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the present invention Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that Described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based in the present invention Embodiment, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its His embodiment, belongs to the scope of protection of the invention.
User equipment in the embodiment of the present invention, is wireless terminal, and wireless terminal can refer to provide a user with The equipment of voice and/or data connectivity, portable equipment with wireless connecting function or is connected to wireless Other processing equipments of modem.Wireless terminal can be through wireless access network (for example, RAN, Radio Access Network) communicated with one or more core nets, wireless terminal can be mobile terminal, Such as mobile phone (or being " honeycomb " phone) and the computer with mobile terminal, for example, it may be just Take formula, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they and wireless access Net exchanges language and/or data.For example, PCS (PCS, Personal Communication Service) phone, wireless phone, Session initiation Protocol (SIP) phone, WLL (WLL, Wireless Local Loop) stand, personal digital assistant (PDA, Personal Digital Assistant) etc. Equipment.Wireless terminal is referred to as system, subscri er unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile Station), mobile station (Mobile), distant station (Remote Station), Access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User ) or subscriber's installation (User Equipment) Device.
Base station (for example, access point) in the embodiment of the present invention, can refer to interface in the air in access network The upper equipment for passing through one or more sectors and wireless terminal communications.Base station can be used for the air frame that will receive with IP packets are mutually changed, as the router between wireless terminal and the remainder of access network, wherein The remainder of access network may include Internet protocol (IP) network.Category of the base station also tunable to air interface Property management.For example, base station can be base station (BTS, the Base Transceiver in GSM or CDMA Station the base station (NodeB)), or in WCDMA, can also be evolved in LTE Base station (NodeB or eNB or e-NodeB, evolutional Node B), the application is not limited.
In the embodiment of the present invention, by base station in advance for each user device configuration in network accesses number of degrees distribution letter Number and random number seed, so that user equipment is when there is data to need to send, for each Resource Block, according to Described to access number of degrees distribution function and the random number seed, generation accesses number of degrees d, from data pair to be sent D modulation symbol is randomly choosed in the modulation symbol sequence answered, and sends selected by the Resource Block D modulation symbol, and repeat said process.Compared to traditional MC-RMA systems, due to saving Larger " registration " process of signaling consumption has been omited, so as to reduce time delay, system effectiveness has been improve.
The embodiment of the present invention is described in further detail with reference to Figure of description.It should be noted that It is to implement to illustrate from the reciprocal of base station and user equipment in the embodiment of the present invention, but this is not Mean that the two must coordinate implementation, in fact, when base station and user equipment are performed separately, also solving Respectively in the problems of base station side and user equipment side.
In the embodiment of the present invention one, there is provided a kind of data transmission method, as shown in figure 1, including：
S11, base station are that each user device configuration in network accesses number of degrees distribution function and random number seed, Wherein, the access number of degrees distribution function be used to characterizing user equipment access it is randomly selected during each Resource Block The probability of the number of degrees is accessed, the random number seed is used to generate the access number of degrees.
Used as a kind of optional implementation, the user of active (active) state of base station in network sets Standby statistical information, is the access number of degrees distribution function of each user device configuration in network and random several Son, wherein, the user equipment of active states is the user equipment that actually have sent data.
Optionally, the statistical information of the user equipment of the active states in network can be：At least one setting The par of the user equipment of the active states in the cycle in network.
S12, user equipment receive the access number of degrees distribution function and random number seed of base station configuration, wherein, The access number of degrees distribution function accesses randomly selected access during each Resource Block for characterizing user equipment The probability of the number of degrees, the random number seed is used to generate the access number of degrees；
S13, the user equipment repeat following data transmission procedure when it is determined that needing to send data：
For each Resource Block, according to access number of degrees distribution function and the random number seed, generation connects Enter number of degrees d, d modulation symbol is randomly choosed from the corresponding modulation symbol sequence of data to be sent, and lead to Cross the Resource Block and send selected d modulation symbol, d is the integer more than or equal to 0；
After S14, base station are demodulated to the data for receiving, each user equipment in network connects Enter number of degrees distribution function and random number seed, respectively to the data after the user equipment demodulation of each active state Enter row decoding, obtain the data that the user equipment of each active state sends.
In the embodiment of the present invention, base station is in advance for each user device configuration in network accesses number of degrees distribution function And random number seed, so that user equipment is when there is data to need to send, for each Resource Block, according to institute Access number of degrees distribution function and the random number seed are stated, generation accesses number of degrees d, from data to be sent correspondence Modulation symbol sequence in randomly choose d modulation symbol, and by the selected d of Resource Block transmission Individual modulation symbol, and repeat said process.Base station sends in the user equipment for receiving active states After data, the data for receiving first are demodulated, further according to the access number of degrees distribution of each user equipment in network Data after the user equipment demodulation of each active state are entered row decoding by function and random number seed respectively, Finally obtain the data that the user equipment of each active state sends.Compared to traditional MC-RMA systems, " registration " process larger due to eliminating signaling consumption, so as to reduce time delay and improve system effectiveness, Extend the application scenarios of MC-RMA.
In the embodiment of the present invention, user equipment is performed in above-mentioned S13 to the Data duplication that this needs sends Data transmission procedure, until confirmation (Acknowledge, abbreviation ACK) message of base station feedback is received, Can just stop sending data to base station, and when there are data to need to send next time, repeat the above-mentioned S13 of execution In data transmission procedure.
In the embodiment of the present invention, base station is the access number of degrees distribution function of each user device configuration in network And random number seed, wherein, base station is that the access number of degrees distribution function that each user equipment is configured can be complete Portion is identical, it is also possible to which part is identical, can also be all different；Base station be each user equipment configured with The several sons of machine are differed.
For example, base station is the access number of degrees distribution function of user equipment m configurationsRepresent that user equipment m will be with Probability p in each Resource Blockm,dRandom selection is accessed Number of degrees d, and randomly choose d symbol and access the Resource Block, wherein, d=0 represents user equipment m not Access the Resource Block.User equipment m is according to access number of degrees distribution functionConnect at random Enter to be equivalent to：First with Probability pm=1-pm,0Channel is accessed, according still further to access number of degrees distribution functionSelection d ' (1≤d '≤Nm) individual symbol Stochastic accessing.
In the embodiment of the present invention, base station, in initialization, is the access of each user device configuration in network Number of degrees distribution function and random number seed, and a beacon (signal) is broadcasted, to notify the use in network Family equipment can be with contention access.The par of the user equipment of the active states in network does not change, Then base station need not reconfigure access number of degrees distribution function and random number seed.If in the cycle of setting The par of the user equipment of active changes, and optionally, base station is again for each user equipment is matched somebody with somebody Put access number of degrees distribution function and random number seed.Due to that need not be in advance user equipment allocation resource, when When the par of the user equipment of active changes in the cycle of setting, base station only needs to adjust network In each user equipment access number of degrees distribution function and/or random number seed, to adjust connecing for user equipment Enter probability, be adapted to the situation of number of users dynamic change in extensive access.Certainly, the base station exists When determining that the par of the user equipment of active in the cycle of setting changes, it is also possible to not again The parameter information is configured, user equipment is processed according to the parameter information for configuring before.
Below by two specific embodiments, from the interaction of user equipment and base station, the present invention is implemented The data transmission method that example is provided is described in detail.
Base station side uses energy detection algorithm in embodiment two, the present embodiment, determines in active states User equipment, and then by iterative decoding, obtain the data that the user equipment of active states sends.This implementation Data transmission system block diagram in example is as shown in Fig. 2 user equipment (UE 1 ..., UE of each active state M the data transmitted by) obtain waiting for transmission respectively by encoding (Encoder), mapping (Mapper) Symbol sebolic addressing.Then, the user equipment of each active state repeats following process：To any Resource Block (Resource Element, abbreviation RE), selects at random according to access number of degrees distribution function and random number seed Access number of degrees d is selected, d symbol is then selected from the symbol sebolic addressing to be transmitted, carry out linear, additive, Modulation symbol after linear, additive is mapped into Resource Block to send.Base station side carries out Multiuser Detection (Multi-user Detection), after determining the user equipment of active states, carries out single user decoding (Single User Decoder), so as to the data that the user equipment for obtaining active states sends.Idiographic flow such as Fig. 3 institutes Show, including following process：
S31, base station, according to the statistical information of user equipment in network, are that the user device configuration in network connects Enter number of degrees distribution function and random number seed.
Wherein, statistical information is mainly included in the user of the active states counted at least one setting cycle The average number of users of equipment.Base station is according to the statistical information of user equipment in network, it is determined that accessing the number of degrees point Cloth function and random number seed.When the statistical information of network state does not change, base station is then not required to Redesign access number of degrees distribution function.
S32, one beacon of base station broadcast, notifying user equipment start the contention access stage.
Optionally, beacon can be the notification signal of 1bit, can be with for the user equipment in notifying cell Access the base station.
S33, each user equipment receive the access number of degrees distribution function and random number seed of base station configuration.If User equipment have in current competitive access phase data need send, be called the user equipment of active states, Then the user equipment of active states first uses low-density check (Low Density Parity Check, LDPC) Data to be sent are encoded by encoder, then carry out binary system phase to the bit information obtained after coding Move keying (Binary Phase Shift Keying, BPSK) linear modulation and obtain the corresponding tune of data to be sent Symbol sebolic addressing (set) processed.
Wherein, the user equipment of active states refers to have data needs to send in current competitive access phase User equipment.
This step is not limited and encoded using LDPC encoder, it would however also be possible to employ other modes are encoded, Such as Turbo code, polar yards etc..This step is not limited yet and is modulated using BPSK modes, it is also possible to adopted Be modulated in other ways, such as multi-system digital phase modulation (Multiple Phase Shift Keying, Abbreviation MPSK), M-ary Quadrature Amplitude modulation (Multiple Quadrature Amplitude Modulation, Abbreviation MQAM) etc..
S34, for any Resource Block, the user equipment of active states accesses number of degrees distribution function according to it, with Machine selection accesses number of degrees d；Then d modulation symbol is randomly choosed from its modulation symbol set and enters line Property be added, and result is sent by the Resource Block.The process is repeated until receiving base station feedback ACK message.
Wherein, the access procedure of each user equipment can with equivalent into type (pattern) matrix, The pattern matrixes are right between the modulation symbol that user equipment sends and the Resource Block for being used for characterizing Should be related to.
For example, the access procedure of each user equipment can be equivalent into N × L dimension matrix.For user uiPattern matrixes Pi, i=1 ..., M, M represents the quantity of the user equipment in network：
PiIn element pjk=1, represent user equipment uiJ-th bit in the modulation symbol sequence of transmission (j=1,2,3 ..., N) sends in k-th time slot (k=1,2,3 ..., L), wherein, N represents user equipment ui's The number of symbol waiting for transmission, the number of the RE in L expression systems；
PiIn element pjk=0, represent user uiJ-th bit in transmission modulation symbol sequence is at k-th Time slot (k=1,2,3 ..., L) do not send.
After S35, base station carry out reception demodulation to each Resource Block, the corresponding demodulation letter of each Resource Block is obtained Breath；The user equipment of active states is determined by gradually offsetting pattern energy measurings in base station.
Specifically, first, the access number of degrees distribution function of each user equipment of the base station in network and with The several sons of machine, determine that each user equipment accesses the access number of degrees of each Resource Block, and according to each user Equipment accesses the access number of degrees of each Resource Block, determines the corresponding pattern of each user equipment in network Matrix；Then, the corresponding pattern matrixes of each user equipment of base station in network, are examined by energy Survey, determine the user equipment of active states.
In this step, base station is according to the verification relation of encoder, the linear phase of the access procedure of each user equipment Plus the linear superposition relation of relation and channel, form the corresponding pattern of each user equipment in network Matrix.
Illustrate, it is assumed that have M user equipment (u in network1,u2,u3,…,uM), each user equipment By producing a BPSK symbol sebolic addressing for N-bit after coding mapping, row vector u is usediRepresent, ui∈{+1,-1}N, i=1,2,3 ..., M.Each user equipment is according to access number of degrees distribution function and random number seed Random access procedure is carried out, this random access procedure can be represented with pattern matrixes.Base station can be according to every The access number of degrees distribution function and random number seed of individual user equipment, determine that each user equipment is corresponding Pattern matrixes.When user equipment is accessed, di=uiPiRepresent the data that user is transmitted in L time slot. Assuming that the collection of the user equipment for accessing is combined intoBase station constant power receives data,The data that base station receives in L time slot are represented, vectorial g represents L time slot Gaussian noise in transmitting procedure.The a kind of possible of energy detection algorithm in the present embodiment realizes flow such as Under：
Base station substitutes into the pattern matrixes of each user equipment by signal y is received, according to Ei=(yPi T)(yPi T)T, Calculate user equipment uiEnergy detection value；
Base station judges user equipment u according to thresholdingiIt is active states or non-active states；If specifically, user Equipment uiEnergy detection value be more than or equal to the corresponding detection threshold of the user equipment, then judge user equipment uiIt is active states；If user equipment uiEnergy detection value be less than the corresponding detection threshold of the user equipment, Then judge user equipment uiIt is non-active states；
Base station eliminates the influence of the maximum user equipment of present energy detected value.If active states are still present User equipment, then base station continues to data, and re-starts the detection of the user equipment of active states；If The user equipment and decoding success of all of active states are had been detected by, then returns to ACK message, with logical Know that corresponding user equipment stops transmission process.
S36, base station are iterated and translate according to the corresponding pattern matrixes of user equipment of each active state Code, with the data that the user equipment for determining each active state sends, and after successfully decoded, Xiang Xiang The user equipment feeding back ACK message answered.
Specifically, when the user equipment for entering row decoding meets the verification relation of encoder, base station is thought It is successfully decoded.
After S37, user equipment receive the ACK message of base station feedback, stop sending current modulation symbol Sequence.
In the present embodiment, base station is after receiving the data, corresponding with each user equipment according to the data for receiving Pattern matrixes, calculate the detection energy value (also referred to as pattern energy values) of each user equipment. The pattern energy of the user equipment of active states and the user equipment of non-active states is drawn by central-limit theorem Value approximate Gaussian distribution, determines whether each user equipment accesses using Neyman-Pearson detections Detection threshold (i.e. the corresponding detection threshold of user equipment).
After decoding success is detected, feeding back ACK message, notifying user equipment stops sending for base station；If Base station not successfully be detected a certain user equipment, and user equipment only needs to continue to send according to step S34 compile Code bit, base station redefines each user equipment pattern energy values and detection threshold, continue into The detection of the user equipment of row active states, it is seen then which inherits the code check self adaptation without rate coding Characteristic, can gradually detect the user equipment of all active states.Code check self adaptation refers to when user sets For cataloged procedure when receiving ACK message, is stopped, code check determines.Therefore, when channel is poor, User equipment needs to send more coded-bit, can just receive ACK message；Conversely, when channel compared with When good, user equipment sends less coded-bit and will receive ACK message.
Base station side uses BP algorithm in embodiment three, the present embodiment, by iterative process complete channel estimation, The decoding of the data transmitted by the detection of the user equipment of active states and the user equipment of each active state, So as to the data that the user equipment for obtaining each active state sends.Data transmission system frame in the present embodiment Figure is as shown in figure 4, the data transmitted by the user equipment (UE 1 ..., UE M) of each active state are distinguished By coding, mapping, symbol sebolic addressing waiting for transmission is obtained.Then, the user equipment weight of each active state Multiple following process：To any Resource Block, connect according to access number of degrees distribution function and random number seed random selection Enter number of degrees d, d symbol then selected from the symbol sebolic addressing to be transmitted, carry out linear, additive, will Modulation symbol after linear, additive is mapped to Resource Block transmission.Base station side carries out Multiuser Detection, channel estimation The iterative process of (Channel Estimation) and single user decoding, so as to obtain the use of each active state The data that family equipment sends.Idiographic flow is as shown in figure 5, including following process：
S51~S54 same S31~S34 respectively；
In the present embodiment, during Stochastic accessing is carried out, the action of oneself basis completely connects user equipment Enter number of degrees distribution function and oneself special random number seed control, i.e. the random number seed of user equipment is equivalent In ID, the random access procedure that different IDs is produced has progressive orthogonal characteristic, is S54 Middle detection different user devices provide ga s safety degree.
After S55, base station carry out reception demodulation to each Resource Block, the corresponding demodulation letter of each Resource Block is obtained Breath；Base station is according to determining for the modulation transmitted by characterizing user equipment on each Resource Block and the Resource Block The factor graph (Factor Graph) of the corresponding relation between symbol, based on the factor graph, using BP algorithm It is iterated and completes channel estimation, Multiuser Detection and decoding simultaneously, determines the use of each active state The data that family equipment sends, and after successfully decoded, to corresponding user equipment feeding back ACK message.
After S56, user equipment receive the ACK message of base station feedback, stop sending current modulation symbol Sequence.
In the present embodiment, within a coherence time (i.e. channel keeps constant maximum time difference scope), User equipment first sent pilot tone, so that what base station was used the user equipment before first time sends data Channel obtains initial estimate.In follow-up data transmission process, avoid the need for sending pilot tone, base station only needs According to channel estimation value before, renewal channel information is iterated according to step S54.Slowly declining Fall in the case of (or channel fading has correlation), greatly reduce the number of pilots for needing to send.
In the present embodiment, base station after the data decoding success sent to certain user equipment, to the user Equipment feeding back ACK message, notifies that the user equipment stops currently transmitted modulation symbol；If not succeeding A certain user equipment is detected, user equipment only needs to continue to send modulation symbol, so as to inherit without speed The characteristic of the code check self adaptation of coding, embodies gradually detection and the effect for gradually decoding.
In the present embodiment, the Stochastic accessing natural feature of user equipment is distributed without rate coding into one, Base station only needs to be iterated decoding according to a Factor Graph, is realized simultaneously in the iterative decoding process Channel estimation, user's detection and user's decoding, are sent with the user equipment for determining each active state Data, reduce the complexity of system.
In this implementation, in step S55, a kind of optional implementation of the factor graph that base station is determined is as schemed Shown in 6, the factor graph that base station is based on shown in Fig. 6 is iterated process, and completes simultaneously in an iterative process Channel estimation, Multiuser Detection and decoding, with the data that the user equipment for determining each active state sends. In factor graph shown in Fig. 6, VN (Variable Node) is variable node, for characterizing user's transmission Data symbol；UCN (User Channel Node) is subscriber channel node, for characterizing user equipment State, i.e., user equipment whether the channel status in active states and user；CN(Check Node) It is check-node, for characterizing the verification relation introduced by user's precoding；REN(Resource Element Node it is) Resource Block node, is superimposed the verification relation of introducing on Resource Block by user symbol for characterizing. Factor graph of the base station according to Fig. 6, it is necessary to estimate two kinds of information of variable node simultaneously, i.e. VN and The information of UCN；Therefore, we represent the relation between node with two kinds of connecting lines：Transmitted on solid line and closed In the Soft Inform ation of information bit, the Soft Inform ation on channel is transmitted on dotted line.Base station is by BP algorithm in Fig. 6 It is iterated on shown factor graph, and completes channel estimation, user's detection simultaneously in an iterative process and translate Code, so that it is determined that the data that the user equipment for going out each active state sends.Wherein, according to user equipment Channel carry out the estimate for estimating to obtain, it may be determined that go out whether user equipment is that the user of active states sets It is standby.
Based on same inventive concept, in the embodiment of the present invention four, there is provided a kind of user equipment, such as Fig. 7 institutes Show, the user equipment includes：
Receiver module 71, access number of degrees distribution function and random number seed for receiving base station configuration, wherein, The access number of degrees distribution function accesses randomly selected access during each Resource Block for characterizing user equipment The probability of the number of degrees, the random number seed is used to generate the access number of degrees；
Data transmission blocks 72, for when it is determined that needing to send data, repeating following data is activation mistake Journey：For each Resource Block, according to access number of degrees distribution function and the random number seed, generation connects Enter number of degrees d, d modulation symbol is randomly choosed from needing to send the corresponding modulation symbol sequence of data, and Selected d modulation symbol is sent to the base station by the Resource Block, d is more than or equal to 0 Integer.
Further, the receiver module is additionally operable to：Receive the confirmation message of the base station feedback；
The data transmission blocks are additionally operable to：Stop sending data to the base station.
In the embodiment of the present invention five, there is provided another user equipment, as shown in figure 8, the user equipment Including：Receiver 81, transmitter 82, processor 83 and memory 84.Wherein：
The receiver 81 receives data under the control of the processor 83；
The transmitter 82 sends data under the control of the processor 83；
The processor 83 is responsible for logical operation and treatment；
The memory 84 includes internal memory and hard disk, can store processor 83 and be used when operation is performed Data and program.
When the user equipment runs, the receiver 81 is received under the control of the processor 83 The access number of degrees distribution function and random number seed of base station configuration, wherein, the access number of degrees distribution function is used It is described random several in the randomly selected probability for accessing number of degrees when user equipment accesses each Resource Block is characterized Son accesses the number of degrees for generating；
The processor 83 reads the program in memory 84, and performs following process：It is determined that needing hair When sending data, following data transmission procedure is repeated：For each Resource Block, according to the access number of degrees Distribution function and the random number seed, generation access number of degrees d, are accorded with from the corresponding modulation of transmission data is needed D modulation symbol is randomly choosed in number sequence, and controls the transmitter 82 by the Resource Block to institute State base station and send selected d modulation symbol, d is the integer more than or equal to 0.
Further, the receiver 81 receives the base station feedback under the control of the processor 83 Confirmation message；
The processor 83 is touched it is determined that the receiver 81 receives the confirmation message of the base station feedback Send out transmitter 82 described and stop sending data to the base station.
Optionally, the receiver 81, the transmitter 82, the processor 83 and the memory 84 Between connected by system bus and complete mutual communication.
It should be noted that the processor 83 can be a general central processor (CPU), micro- place Reason device, ASIC (Application-Specific Integrated Circuit, abbreviation ASIC), Or one or more are used to control the integrated circuit of the present invention program program execution.The receiver 81 and institute Transmitter 82 is stated, it is possible to use the device of the class of any transceiver one, so as to logical with other equipment or communication network Letter, such as Ethernet, wireless access network (RAN), WLAN (WLAN) etc..The memory 84, can be read-only storage (Read-Only Memory, abbreviation ROM) or static information can be stored With instruction other kinds of static storage device, random access memory (Random Access Memory, Abbreviation RAM) or can storage information and the other kinds of dynamic memory, or magnetic for instructing Disk storage.The memory 84 preserves operating system and performs the program of the present invention program.Operation system System is the program of management system resource for controlling other programs to run.
Based on same inventive concept, in the embodiment of the present invention six, there is provided a kind of base station, as shown in figure 9, The base station includes：
Configuration module 91, for for each user device configuration access number of degrees distribution function in network and at random Several sons, wherein, the access number of degrees distribution function be used to characterizing when user equipment accesses each Resource Block with The probability of the access number of degrees of machine selection, the random number seed is used to generate the access number of degrees；
Processing module 92, after being demodulated to the data for receiving, each user in network sets Standby access number of degrees distribution function and random number seed, detect the user equipment for enlivening active states, and divide The data that the other user equipment to each active state sends enter row decoding, obtain the user of each active state The data that equipment sends, wherein, the user equipment of active states is the user equipment that actually have sent data.
As a kind of optional implementation, the processing module 92 specifically for：
The access number of degrees distribution function and random number seed of each user equipment in network, determine every Individual user equipment accesses the access number of degrees of each Resource Block；
The access number of degrees of each Resource Block are accessed according to each user equipment, each user in network is determined The corresponding type pattern matrixes of equipment, wherein, the pattern matrixes are used to characterize user equipment transmission Modulation symbol and the Resource Block that is used between corresponding relation；
The corresponding pattern matrixes of each user equipment in network, by energy detection algorithm, detection Go out the user equipment of active states；
The corresponding pattern matrixes of user equipment according to each active state, enliven active to each respectively The data that the user equipment of state sends enter row decoding, obtain the number transmitted by the user equipment of each active state According to.
As another optional implementation, the processing module 92 specifically for：
The access number of degrees distribution function and random number seed of each user equipment in network, determine every Individual user equipment accesses the access number of degrees of each Resource Block；
The access number of degrees of each Resource Block are accessed according to each user equipment, is determined for characterizing each resource The factor graph of the corresponding relation between data on block and the Resource Block transmitted by user equipment；
According to the factor graph, using belief propagation BP algorithm, each user equipment is completed by iteration The data that the user equipment of channel estimation, the detection of the user equipment of active states and active states sends Decoding, obtain each active state user equipment send data.
Based on any of the above-described embodiment, optionally, the processing module 92 is additionally operable to：
To the user equipment feeding back confirmation message of successfully decoded active states, so that the use of the active states Family equipment stops sending data to the base station.
Based on any of the above-described embodiment, optionally, the configuration module 91 is additionally operable to：
When the par of the user equipment of active states changes within the cycle for determine setting, again For each user device configuration in network accesses number of degrees distribution function and/or random number seed.
In the embodiment of the present invention seven, there is provided another base station, as shown in Figure 10, the base station includes： Receiver 101, transmitter 102, processor 103 and memory 104.Wherein：
The receiver 101 receives data under the control of the processor 103；
The transmitter 102 sends data under the control of the processor 103；
The processor 103 is responsible for logical operation and treatment；
The memory 104 includes internal memory and hard disk, and can store processor 103 is made when operation is performed Data and program.
When the base station is run, the processor 103 reads the program in memory 104, and performs such as Lower process：
For each user device configuration in network accesses number of degrees distribution function and random number seed, and control institute The access number of degrees distribution function and random number seed of the send configuration of transmitter 102 are stated, wherein, the access degree Number distribution function is used to characterize the probability that user equipment accesses randomly selected access number of degrees during each Resource Block, The random number seed is used to generate the access number of degrees；
After being demodulated to the data that the receiver 101 is received, each user equipment in network Access number of degrees distribution function and random number seed, detect the user equipment of active states, and respectively to every The data that the user equipment of individual active states sends enter row decoding, obtain the user equipment hair of each active state The data sent, wherein, the user equipment of active states is the user equipment that actually have sent data.
Wherein, the processor 103 in the present embodiment can be used to realize the place being related in the embodiment shown in Fig. 9 The institute of reason module is functional, and it implements the associated description that process is referred in the embodiment shown in Fig. 9, Here is omitted.
Optionally, the receiver 101, the transmitter 102, the processor 103 and the storage Mutual communication is connected by system bus and completed between device 104.
It should be noted that the processor 103 can be a general central processor (CPU), it is micro- Processor, ASIC (ASIC), or one or more are for controlling the present invention program program The integrated circuit of execution.The receiver 101 and the transmitter 102, it is possible to use any transceiver one The device of class, so as to other equipment or communication, such as Ethernet, wireless access network (RAN), WLAN (WLAN) etc..The memory 104, can be read-only storage (Read-Only Memory, abbreviation ROM) or static information and the other kinds of static storage device for instructing can be stored, Random access memory (Random Access Memory, abbreviation RAM) storage information and can refer to The other kinds of dynamic memory, or magnetic disk storage of order.The memory 104 is preserved The program of operating system and execution the present invention program.Operating system is the management for controlling other programs to run The program of system resource.
Based on same inventive concept, in the embodiment of the present invention eight, there is provided a kind of communication system, such as Figure 11 Shown, the system includes：
Base station 111, for accessing number of degrees distribution function and random number for each user device configuration in network Seed, wherein, the access number of degrees distribution function be used to characterizing user equipment access it is random during each Resource Block The probability of the access number of degrees of selection, the random number seed is used to generate the access number of degrees；To the data for receiving After being demodulated, the access number of degrees distribution function and random number seed of each user equipment in network, The user equipment for enlivening active states is detected, and the number for being sent to the user equipment of each active state respectively According to row decoding is entered, the data that the user equipment of each active state sends are obtained, wherein, the use of active states Family equipment is the user equipment that actually have sent data；
User equipment 112, access number of degrees distribution function and random number seed for receiving base station configuration； It is determined that when needing to send data, repeating following data transmission procedure：For each Resource Block, according to institute State access number of degrees distribution function and the random number seed, generation access number of degrees d, from need send data pair D modulation symbol is randomly choosed in the modulation symbol sequence answered, and is sent out to the base station by the Resource Block Selected d modulation symbol is sent, d is the integer more than or equal to 0.
It should be noted that the base station 111 in communication system can be the base station shown in Fig. 9, or Base station shown in Figure 10；User equipment 112 in communication system can be the user equipment shown in Fig. 7, It can also be the user equipment shown in Fig. 8.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot Close the form of the embodiment in terms of software and hardware.And, the present invention can be used and wherein wrapped at one or more Containing computer usable program code computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) on implement computer program product form.
The present invention is produced with reference to method according to embodiments of the present invention, equipment (system) and computer program The flow chart and/or block diagram of product is described.It should be understood that can by computer program instructions realize flow chart and / or block diagram in each flow and/or the flow in square frame and flow chart and/or block diagram and/ Or the combination of square frame.These computer program instructions to all-purpose computer, special-purpose computer, insertion can be provided The processor of formula processor or other programmable data processing devices is producing a machine so that by calculating The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one The device of the function of being specified in individual flow or multiple one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or the treatment of other programmable datas to set In the standby computer-readable memory for working in a specific way so that storage is in the computer-readable memory Instruction produce include the manufacture of command device, the command device realization in one flow of flow chart or multiple The function of being specified in one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, made Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one The step of function of being specified in flow or multiple one square frame of flow and/or block diagram or multiple square frames.
, but those skilled in the art once know base although preferred embodiments of the present invention have been described This creative concept, then can make other change and modification to these embodiments.So, appended right will Ask and be intended to be construed to include preferred embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this hair to the present invention Bright spirit and scope.So, if it is of the invention these modification and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprising these changes and modification.

Claims (15)

1. a kind of data transmission method for uplink, it is characterised in that methods described includes：
User equipment receives the access number of degrees distribution function and random number seed of base station configuration, wherein, it is described to connect Enter number of degrees distribution function and access randomly selected access number of degrees during each Resource Block for characterizing user equipment Probability, the random number seed is used to generate the access number of degrees；
The user equipment repeats following data transmission procedure when it is determined that needing to send data：
For each Resource Block, according to access number of degrees distribution function and the random number seed, generation connects Enter number of degrees d, d modulation symbol is randomly choosed from needing to send the corresponding modulation symbol sequence of data, and Selected d modulation symbol is sent to the base station by the Resource Block, d is more than or equal to 0 Integer.
2. the method for claim 1, it is characterised in that the user equipment repeats described After data transmission procedure, the method also includes：
The user equipment receives the confirmation message of the base station feedback；
The user equipment stops sending data to the base station.
3. a kind of data receiver method, it is characterised in that methods described includes：
Base station is that each user device configuration in network accesses number of degrees distribution function and random number seed, its In, the access number of degrees distribution function is used to characterize randomly selected when user equipment accesses each Resource Block connecing Enter the probability of the number of degrees, the random number seed is used to generate the access number of degrees；
After the base station is demodulated to the data for receiving, the access of each user equipment in network Number of degrees distribution function and random number seed, detect the user equipment for enlivening active states, and respectively to each The data that the user equipment of active states sends enter row decoding, and the user equipment for obtaining each active state sends Data, wherein, the user equipment of active states is the user equipment that actually have sent data.
4. method as claimed in claim 3, it is characterised in that each of the base station in network The access number of degrees distribution function and random number seed of user equipment, detect the user equipment of active states, and Row decoding is entered to the data that each user equipment for enlivening active states sends respectively, each active state is obtained User equipment send data, including：
The access number of degrees distribution function and random number seed of each user equipment of the base station in network, Determine that each user equipment accesses the access number of degrees of each Resource Block；
The base station accesses the access number of degrees of each Resource Block according to each user equipment, in determining network The corresponding type pattern matrixes of each user equipment, wherein, the pattern matrixes are used to characterize user Corresponding relation between the modulation symbol of equipment transmission and the Resource Block for being used；
The corresponding pattern matrixes of each user equipment of the base station in network, are calculated by energy measuring Method, detects the user equipment of active states；
Each is lived respectively according to the corresponding pattern matrixes of user equipment of each active state the base station The data that the user equipment of the active states that jump sends enter row decoding, obtain the user equipment institute of each active state The data of transmission.
5. method as claimed in claim 3, it is characterised in that each of the base station in network The access number of degrees distribution function and random number seed of user equipment, detect the user equipment of active states, and Row decoding is entered to the data that each user equipment for enlivening active states sends respectively, each active state is obtained User equipment send data, including：
The access number of degrees distribution function and random number seed of each user equipment of the base station in network, Determine that each user equipment accesses the access number of degrees of each Resource Block；
The base station accesses the access number of degrees of each Resource Block according to each user equipment, determines for characterizing The factor graph of the corresponding relation between data on each Resource Block and the Resource Block transmitted by user equipment；
The base station, using belief propagation BP algorithm, completes each and uses according to the factor graph by iteration The user equipment hair of the channel estimation, the detection of the user equipment of active states and active states of family equipment The decoding of the data sent, obtains the data that the user equipment of each active state sends.
6. the method as described in any one of claim 3~5, it is characterised in that the base station obtains each After the data that the user equipment of active states sends, the method also includes：
User equipment feeding back confirmation message from the base station to successfully decoded active states so that the active The user equipment of state stops sending data to the base station.
7. method as claimed in claim 3, it is characterised in that the method also includes：
Base station par of the user equipment of active states within the cycle for determine setting changes When, again for each user device configuration in network accesses number of degrees distribution function and/or random number seed.
8. a kind of user equipment, it is characterised in that the user equipment includes：
Receiver module, access number of degrees distribution function and random number seed for receiving base station configuration, wherein, The access number of degrees distribution function accesses randomly selected access during each Resource Block for characterizing user equipment The probability of the number of degrees, the random number seed is used to generate the access number of degrees；
Data transmission blocks, for when it is determined that needing to send data, repeating following data transmission procedure：
For each Resource Block, according to access number of degrees distribution function and the random number seed, generation connects Enter number of degrees d, d modulation symbol is randomly choosed from needing to send the corresponding modulation symbol sequence of data, and Selected d modulation symbol is sent to the base station by the Resource Block, d is more than or equal to 0 Integer.
9. user equipment as claimed in claim 8, it is characterised in that the receiver module is additionally operable to： Receive the confirmation message of the base station feedback；
The data transmission blocks are additionally operable to：Stop sending data to the base station.
10. a kind of base station, it is characterised in that the base station includes：
Configuration module, for accessing number of degrees distribution function and random number for each user device configuration in network Seed, wherein, the access number of degrees distribution function be used to characterizing user equipment access it is random during each Resource Block The probability of the access number of degrees of selection, the random number seed is used to generate the access number of degrees；
Processing module, after being demodulated to the data for receiving, each user equipment in network Access number of degrees distribution function and random number seed, detect the user equipment for enlivening active states, and respectively Row decoding is entered to the data that the user equipment of each active state sends, the user for obtaining each active state sets The data that preparation is sent, wherein, the user equipment of active states is the user equipment that actually have sent data.
11. base stations as claimed in claim 10, it is characterised in that the processing module specifically for：
The access number of degrees distribution function and random number seed of each user equipment in network, determine every Individual user equipment accesses the access number of degrees of each Resource Block；
The access number of degrees of each Resource Block are accessed according to each user equipment, each user in network is determined The corresponding type pattern matrixes of equipment, wherein, the pattern matrixes are used to characterize user equipment transmission Modulation symbol and the Resource Block that is used between corresponding relation；
The corresponding pattern matrixes of each user equipment in network, by energy detection algorithm, detection Go out the user equipment of active states；
The corresponding pattern matrixes of user equipment according to each active state, enliven active to each respectively The data that the user equipment of state sends enter row decoding, obtain the number transmitted by the user equipment of each active state According to.
12. base stations as claimed in claim 10, it is characterised in that the processing module specifically for：
The access number of degrees distribution function and random number seed of each user equipment in network, determine every Individual user equipment accesses the access number of degrees of each Resource Block；
The access number of degrees of each Resource Block are accessed according to each user equipment, is determined for characterizing each resource The factor graph of the corresponding relation between data on block and the Resource Block transmitted by user equipment；
According to the factor graph, using belief propagation BP algorithm, each user equipment is completed by iteration The data that the user equipment of channel estimation, the detection of the user equipment of active states and active states sends Decoding, obtain each active state user equipment send data.
13. base station as described in any one of claim 10~12, it is characterised in that the processing module is also For：
To the user equipment feeding back confirmation message of successfully decoded active states, so that the use of the active states Family equipment stops sending data to the base station.
14. base stations as claimed in claim 10, it is characterised in that the configuration module is additionally operable to：
When the par of the user equipment of active states changes within the cycle for determine setting, again For each user device configuration in network accesses number of degrees distribution function and/or random number seed.
15. a kind of communication systems, it is characterised in that the system includes：
Base station, for accessing number of degrees distribution function and random several for each user device configuration in network Son, wherein, the access number of degrees distribution function is used to characterize when user equipment accesses each Resource Block to select at random The probability of the access number of degrees selected, the random number seed is used to generate the access number of degrees；Data to receiving are entered After row demodulation, the access number of degrees distribution function and random number seed of each user equipment in network, inspection Measure the user equipment for enlivening active states, and the data that the user equipment of each active state sends are carried out Decoding, obtains the data that the user equipment of each active state sends, wherein, the user equipment of active states Actually to have sent the user equipment of data；
User equipment, access number of degrees distribution function and random number seed for receiving base station configuration；It is determined that When needing to send data, following data transmission procedure is repeated：For each Resource Block, connect according to described Enter number of degrees distribution function and the random number seed, generation accesses number of degrees d, transmission data are corresponding from needing D modulation symbol is randomly choosed in modulation symbol sequence, and institute is sent to the base station by the Resource Block D modulation symbol of selection, d is the integer more than or equal to 0.
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