CN106688299B

CN106688299B - Communication means, terminal device and base station

Info

Publication number: CN106688299B
Application number: CN201480079687.0A
Authority: CN
Inventors: 张朝阳; 王献斌; 张昱; 张舜卿
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-11-04
Filing date: 2014-11-04
Publication date: 2019-06-11
Anticipated expiration: 2034-11-04
Also published as: CN106688299A; WO2016070323A1

Abstract

The invention discloses a kind of communication means, terminal device and base stations.This method comprises: system status information includes at least one of total access degree of total number of users and running time-frequency resource from base station receiving system status information；According to system status information, access degree probability distribution information is determined, access degree probability distribution information is used to indicate corresponding probability when sending data respectively with specific one or multiple access degrees；According to access degree probability distribution information, data to be sent are sent to base station respectively with specific one or multiple access degrees and corresponding probability.The embodiment of the present invention can be improved system effectiveness, reduce system complexity.

Description

Communication means, terminal device and base station

Technical field

The present embodiments relate to the communications fields, and more particularly, to a kind of communication means, terminal device and base It stands.

Background technique

With the development of the technologies such as Internet of Things, car networking and self-organizing network, cell densification is becoming for future network Gesture.Extensive access (English: Massive Access) is one of typical scene of future network.Extensive access scene just like Lower feature: one, potential accessing user's number is larger and dynamic change；Two, access network architecture complexity, topological changeable, the characteristic of channel Dynamic change；Three, type of service is complicated, and different user access data volume and delay requirement etc. all have significant difference.

Under access scene on a large scale, if system can bring a series of problem using the access mechanism of central controlled. For example, system needs the information for the access way for spending a large amount of signal resource transmission about user, system effectiveness is reduced.Again Such as, base station needs the access parameter of combined optimization extensive number user, and complexity is very high.

Therefore, under access scene on a large scale, system needs a kind of communication means based on new access mechanism, and then solves Certainly aforementioned system low efficiency and the problems such as high complexity.

Summary of the invention

The embodiment of the invention provides a kind of communication means, terminal device and base stations, can be improved system effectiveness, reduce system System complexity.

In a first aspect, the embodiment of the invention provides a kind of communication means, comprising:

From base station receiving system status information, system status information includes total access degree of total number of users and running time-frequency resource At least one of number；

According to system status information, access degree probability distribution information is determined, access degree probability distribution information is for referring to Show corresponding probability when sending data respectively with specific one or multiple access degrees；

According to access degree probability distribution information, distinguished with specific one or multiple access degrees and corresponding probability Data to be sent are sent to base station.

With reference to first aspect, in the first implementation of first aspect, according to system status information, access degree is determined Number probability distribution information, comprising:

According to system status information, determine that target averagely accesses degree；

Degree is averagely accessed according to target, determines access degree probability distribution information.

With reference to first aspect and its above-mentioned implementation, in second of implementation of first aspect, according to access degree Number probability distribution informations are sent to base station to be sent respectively with specific one or multiple access degrees and corresponding probability Data, comprising:

According to access degree probability distribution information, determine that access the degree d, d when this sends data are nonnegative integer；

D symbol is selected to carry out linear, additive from data to be sent, and to the result after base station transmission linear, additive.

With reference to first aspect and its above-mentioned implementation, in the third implementation of first aspect, according to access Degree probability distribution information is sent to base station to be sent respectively with specific one or multiple access degrees and corresponding probability Data after, this method further include:

Feedback information is received from base station, feedback information is used to indicate base station decoding success data to be sent；

According to the data volume sent at the time of receiving feedback information, adjustment access degree probability distribution information.

With reference to first aspect and its above-mentioned implementation, in the 4th kind of implementation of first aspect, according to receiving The data volume sent at the time of to feedback information, adjustment access degree probability distribution information, comprising:

If the data volume sent is greater than preset threshold value, increase the first access in access degree probability distribution information The corresponding probability of degree, the first access degree are greater than target and averagely access degree；

If the data volume sent is less than preset threshold value, reduce the first access in access degree probability distribution information The corresponding probability of degree, the first access degree are greater than target and averagely access degree.

With reference to first aspect and its above-mentioned implementation, in the 5th kind of implementation of first aspect, number to be sent It is encoded according to using the precoding of cbr (constant bit rate).

With reference to first aspect and its above-mentioned implementation, in the 6th kind of implementation of first aspect, system mode letter Breath includes Signal to Noise Ratio (SNR).

Second aspect, the embodiment of the invention provides a kind of communication means, comprising:

System status information is sent to terminal device, in order to which terminal device determines access degree according to system status information Probability distribution information, system status information include at least one of total access degree of total number of users and running time-frequency resource；

The data that receiving terminal apparatus is sent according to access degree probability distribution information, access degree probability distribution information are used Corresponding probability when instruction terminal equipment sends data respectively with specific one or multiple access degrees.

In conjunction with second aspect, in the first implementation of second aspect, in receiving terminal apparatus according to access degree After the data that probability distribution information is sent, this method further include:

In the data that decoding success terminal device is sent, feedback information is sent to terminal device.

In conjunction with second aspect and its above-mentioned implementation, in second of implementation of second aspect, system mode letter Breath includes Signal to Noise Ratio (SNR).

The third aspect, the embodiment of the invention provides a kind of terminal devices, comprising:

In conjunction with the third aspect, in the first implementation of the third aspect, receiving unit is used for from base station receiving system Status information, system status information include at least one of total access degree of total number of users and running time-frequency resource；

Determination unit, for determining access degree probability distribution information, access degree probability point according to system status information Cloth information is used to indicate corresponding probability when sending data respectively with specific one or multiple access degrees；

Transmission unit, for according to access degree probability distribution information, with specific one or multiple access degrees and Corresponding probability sends data to be sent to base station respectively.

In conjunction with the third aspect, in the first implementation of the third aspect, determination unit is specifically used for,

In conjunction with the third aspect and its above-mentioned implementation, in second of implementation of the third aspect, transmission unit tool Body is used for,

In conjunction with the third aspect and its above-mentioned implementation, in the third implementation of the third aspect, receiving unit is also For receiving feedback information from base station, feedback information is used to indicate base station decoding success data to be sent；

Determination unit is also used to, according to the data volume sent at the time of receiving feedback information, adjustment access degree Probability distribution information.

In conjunction with the third aspect and its above-mentioned implementation, in the 4th kind of implementation of the third aspect, determination unit tool Body is used for,

In conjunction with the third aspect and its above-mentioned implementation, in the 5th kind of implementation of the third aspect, number to be sent It is encoded according to using the precoding of cbr (constant bit rate).

In conjunction with the third aspect and its above-mentioned implementation, in the 6th kind of implementation of the third aspect, system mode letter Breath includes Signal to Noise Ratio (SNR).

Fourth aspect, the embodiment of the invention provides a kind of base stations, comprising:

Transmission unit, for sending system status information to terminal device, in order to which terminal device is believed according to system mode Breath determines access degree probability distribution information, and system status information includes in total access degree of total number of users and running time-frequency resource At least one；

Receiving unit accesses degree for the data that receiving terminal apparatus is sent according to access degree probability distribution information Probability distribution information is used to indicate corresponding general when terminal device sends data with specific one or multiple access degrees respectively Rate.

In conjunction with fourth aspect, in the first implementation of fourth aspect, transmission unit is also used to, at decoding success end When the data that end equipment is sent, feedback information is sent to terminal device.

In conjunction with fourth aspect and its above-mentioned implementation, in second of implementation of fourth aspect, system mode letter Breath includes Signal to Noise Ratio (SNR).

Based on the above-mentioned technical proposal, in embodiments of the present invention, terminal device determines access degree according to system status information Number probability distribution information.Then, terminal device sends data to base station according to access degree probability distribution information.In this way, being not required to Wanting base station is that each terminal device distributes access-in resource, or each specific access way of terminal device of instruction.Therefore, this hair Bright embodiment can be improved system effectiveness, reduce system complexity.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 shows the applicable wireless communication system of the embodiment of the present invention.

Fig. 2 is the schematic flow chart of the communication means of one embodiment of the invention.

Fig. 3 is the schematic flow chart of the communication means of another embodiment of the present invention.

Fig. 4 is the schematic flow chart of the communication means of another embodiment of the present invention.

Fig. 5 is the schematic block diagram of the terminal device of one embodiment of the invention.

Fig. 6 is the schematic block diagram of the base station of one embodiment of the invention.

Fig. 7 is the schematic block diagram of the terminal device of another embodiment of the present invention.

Fig. 8 is the schematic block diagram of the base station of another embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiment is a part of the embodiments of the present invention, rather than whole embodiments.Based on this hair Embodiment in bright, those of ordinary skill in the art's every other reality obtained without creative labor Example is applied, all should belong to the scope of protection of the invention.

Multiple embodiments are described referring now to attached drawing, wherein indicating similar elements herein with identical appended drawing reference. In the following description, for convenient for explain, a large amount of details are given, in order to provide to the comprehensive of one or more embodiments Understand.It may be evident, however, that the embodiment can also be practiced without these specific details.In other examples, with block diagram Form shows known features and equipment, in order to describe one or more embodiments.

The term " component " that uses in the present specification, " module ", " system " etc. for indicate computer-related entity, Hardware, firmware, the combination of hardware and software, software or software in execution.For example, component can be but not limited to, handling Process, processor, object, executable file, execution thread, program and/or the computer run on device.By diagram, counting Calculating the application run in equipment and calculating equipment can be component.One or more components can reside in process and/or execution In thread, component can be located on a computer and/or be distributed between 2 or more computers.In addition, these components can It is executed from the various computer-readable mediums for being stored with various data structures above.Component can be for example according to one or more A data grouping (such as from two components interacted with local system, distributed system and/or internetwork another component Data, such as the internet by signal and other system interactions) signal communicated by locally and/or remotely process.

In addition, various aspects of the invention or feature may be implemented into method, apparatus or use standard program and/or engineering The product of technology.Term " product " used herein is covered can be from any computer-readable device, carrier or medium access Computer program.For example, computer-readable medium may include, but be not limited to: magnetic memory device (for example, hard disk, floppy disk or Tape etc.), CD is (for example, CD (Compact Disk, compact disk), DVD (Digital Versatile Disk, digital universal Disk) etc.), smart card and flush memory device are (for example, (Erasable Programmable Read-Only Memory, can by EPROM Erasable programmable read only memory), card, stick or Keyed actuator etc.).In addition, various storage media described herein can represent For store information one or more equipment and/or other machine readable medias.Term " machine readable media " may include but It is not limited to, wireless channel and the various other media that can be stored, include and/or carry instruction and/or data.

It should be understood that the technical solution of the embodiment of the present invention can be applied to various communication systems, and such as: global system for mobile telecommunications (English: Global System of Mobile communication, referred to as: GSM) system, CDMA (English: Code Division Multiple Access, referred to as: CDMA) system, wideband code division multiple access (English: Wideband Code Division Multiple Access, referred to as: WCDMA) system, General Packet Radio Service (English: General Packet Radio Service, referred to as: GPRS), long term evolution (English: Long Term Evolution, referred to as: LTE) system, LTE Frequency division duplex (English: Frequency Division Duplex, referred to as: FDD) system, LTE time division duplex (English: Time Division Duplex, referred to as: TDD), Universal Mobile Communication System (English: Universal Mobile Telecommunication System, referred to as: UMTS), global interconnection inserting of microwave (English: Worldwide Interoperability for Microwave Access, referred to as: WiMAX) communication system etc..

It should also be understood that in embodiments of the present invention, terminal device is properly termed as user equipment (English: User Equipment, referred to as: UE), also referred to as terminal (Terminal), mobile station (English: Mobile Station, referred to as: MS), mobile terminal (Mobile Terminal) etc..Alternatively, terminal device can be the access communications such as sensor node, automobile The equipment of network, or the device that can be communicated thereon with access to communication networks.The terminal device can be through wireless access network (English Text: Radio Access Network, referred to as: RAN) communicated with one or more core nets, for example, user equipment can be with It is mobile phone (or being " honeycomb " phone), computer with mobile terminal etc., for example, user equipment can also be portable Formula, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchanged with wireless access network voice and/or Data.

In embodiments of the present invention, base station can be the base station (English: Base Transceiver in GSM or CDMA Station, referred to as: BTS), it is also possible to the base station (English: NodeB, abbreviation: NB) in WCDMA, can also be drilling in LTE Into type base station (English: Evolutional Node B, abbreviation: ENB or e-NodeB), the present invention is not limited.

Fig. 1 shows the applicable wireless communication system of the embodiment of the present invention.Wireless communication system 100 includes base station 102, Base station 102 may include mutiple antennas group.Each antenna sets may include one or more antennas, for example, an antenna sets can wrap Antenna 104 and 106 is included, another antenna sets may include antenna 108 and 110, and additional group may include antenna 112 and 114.In Fig. 1 2 antennas are shown for each antenna sets, however more or fewer antennas can be used for each group.It base station 102 can be attached Include transmitter chain and receiver chain with adding, is sent it will appreciated by the skilled person that they may each comprise with signal Relevant multiple components (such as processor, modulator, multiplexer, demodulator, demultiplexer or antenna etc.) with reception.

Base station 102 can be communicated with one or more user equipmenies (such as access terminal 116 and access terminal 122).So And, it will be understood that base station 102 can be communicated with any number of access terminal for being similar to access terminal 116 or 122.Access Terminal 116 and 122 can be for example cellular phone, smart phone, portable computer, handheld communication devices, handheld computing device, Satellite radio, global positioning system, PDA and/or for communicated on wireless communication system 100 it is any other be suitble to Equipment.As shown, access terminal 116 is communicated with antenna 112 and 114, wherein antenna 112 and 114 by forward link 118 to Access terminal 116 sends information, and receives information from access terminal 116 by reverse link 120.In addition, access terminal 122 with Antenna 104 and 106 communicates, and wherein antenna 104 and 106 sends information to access terminal 122 by forward link 124, and passes through Reverse link 126 receives information from access terminal 122.In FDD (Frequency Division Duplex, frequency division duplex) system In system, for example, forward link 118 is available with different frequency bands used in reverse link 120, forward link 124 it is available with Different frequency bands used in reverse link 126.In addition, in TDD (Time Division Duplex, time division duplex) system, Common frequency band can be used in forward link 118 and reverse link 120, and common frequency can be used in forward link 124 and reverse link 126 Band.

The every group of antenna and/or region that are designed to communication are known as the sector of base station 102.For example, antenna sets can be set It is calculated as communicating with the access terminal in the sector of 102 overlay area of base station.Distinguished in base station 102 by forward link 118 and 124 During being communicated with access terminal 116 and 122, the transmitting antenna of base station 102 can be improved using beam forming before to The signal-to-noise ratio of link 118 and 124.In addition, with base station in such a way that the individual antenna access terminal all to it sends signal It compares, sends signal using the access terminal 116 and 122 of beam forming random dispersion into associated coverage in base station 102 When, the mobile device in neighboring community will receive less interference.

In given time, base station 102, access terminal 116 or access terminal 122 can be radio communication transmitter and/ Or radio communication receiver.When sending out data, radio communication transmitter can encode data to be used for transmission.Tool Body, radio communication transmitter can obtain (such as generate, receive from other communication devices or save in memory etc.) and want The data bit of the certain amount of radio communication receiver is sent to by channel.This data bit may include in data In transmission block (or multiple transmission blocks), transmission block be can be segmented to generate multiple code blocks.In addition, radio communication transmitter can make Each code block is encoded with encoder (not shown).

It should be understood that the wireless communication system 100 in Fig. 1 is only an example, the applicable communication system of the embodiment of the present invention System is not limited to this.

Under access scene on a large scale, terminal device (e.g., access terminal 116 or access that access base station 102 is communicated Terminal 122) quantity is larger and dynamic change.If system can bring a series of problem using the access mechanism of central controlled. For example, system needs the information for the access way for spending a large amount of signal resource transmission about user, system effectiveness is reduced.Again Such as, base station needs the access parameter of combined optimization extensive number user, and complexity is very high.

The embodiment of the invention provides a kind of communication means, can be improved system effectiveness, reduce system complexity.It is right below The communication means of the embodiment of the present invention is described in detail.It should be noted that these examples are intended merely to help those skilled in the art Member more fully understands the embodiment of the present invention, the range for the embodiment that is not intended to limit the present invention.

Fig. 2 is the schematic flow chart of the communication means of one embodiment of the invention.The method of Fig. 2 can be by terminal device It executes, access terminal 116 or access terminal 122 as shown in Figure 1.

201, from base station receiving system status information, system status information includes that total number of users and the total of running time-frequency resource connect Enter at least one of degree.

For example, total number of users indicate current communication networks in access base station terminal device sum, running time-frequency resource it is total Access degree refer to running time-frequency resource average in total access degree or preset period of time of running time-frequency resource in current system Total access degree.Wherein, total access degree of running time-frequency resource reflects the size of system loading (usual load is big in system Channel quality is poor when preset numerical value), as system running time-frequency resource on the sum of data symbol that carries.

202, according to system status information, determine that access degree probability distribution information, access degree probability distribution information are used Corresponding probability when indicating to send data respectively with specific one or multiple access degrees.

For example, including one or more specific access degrees in access degree probability distribution information and corresponding general Rate.Terminal device specific access degree as indicated and corresponding probability send data to base station.Specifically, access degree Number probability distribution informations can indicate in table form, can also be indicated with function expression, the embodiment of the present invention This is not construed as limiting.Such as, degree distribution function is accessedWherein, d is access degree, p_dFor corresponding probability, N is the length of coded-bit.

203, according to access degree probability distribution information, with specific one or multiple access degrees and corresponding probability Data to be sent are sent to base station respectively.

For example, including three access degree d in access degree probability distribution information₁, d₂, d₃, corresponding probability is respectively p₁, p₂, p₃.Wherein, p₁+p₂+p₃=1.In this way, terminal device is respectively with aforementioned three access degrees d₁, d₂, d₃It is sent to base station Data, and the number of data is sent according to corresponding determine the probability with each access degree.

Assuming that terminal device sends 10 data, p to base station₁=0.3, then terminal device is in 10 times with access degree Number d₁Send data number be 3 times, and this 3 times 10 times send in position and be not construed as limiting.In addition, if aforementioned three Accessing an access degree in degree is zero, indicates that terminal device does not send data.

Optionally, as one embodiment, according to system status information, when determining access degree probability distribution information, It can determine that target averagely accesses degree first according to system status information.Then, degree is averagely accessed according to target, determination connects Enter degree probability distribution information.

For example, terminal device can know current system loading according to system status information.It is negative in conjunction with preset system Lotus threshold value, terminal device can determine itself current available averagely access degree, i.e. target averagely accesses degree.Specifically, Terminal device can subtract current system load value (i.e. total access degree of running time-frequency resource) with system loading threshold value, will be poor Value averagely accesses degree as target, or combines the access degree conduct that seek one less than aforementioned difference of decoding complexity Target averagely accesses degree.Then, terminal device can averagely access degree according to target, determine access degree probability distribution letter Breath.Wherein, the M corresponding probability of access degree that access degree probability distribution information includes meets two following conditions:

Condition one seeks the product for the probability that each access degree is corresponding in this M access degree, obtains M and multiply Product, the sum of the M product averagely access degree equal to preceding aim.

Condition two, the sum of aforementioned each probability are equal to 1.

For another example, terminal device can make corresponding quotient with preset system loading threshold value divided by aforementioned total number of users Degree is averagely accessed for preceding aim.Alternatively, terminal device can by total access degree of running time-frequency resource divided by total number of users, Degree is averagely accessed using corresponding quotient as preceding aim.It should be understood that these change case should all fall in protection model of the invention In enclosing.

In addition, determine access degree probability distribution information when, terminal device can be combined with signal-to-noise ratio (English: Signal to Noise Ratio, referred to as: SNR), the other factors such as data transmission demand determine the access degree probability distribution Information.Assuming that each subscriber channel gain is identical, the iteration performance of external information is obtained.With the total access degree of time/frequency source block Increase, the convergence point of average external information quickly tends to be saturated.When the total access degree of time/frequency source block is infinitely great, outside The convergence point of information is progressive performance, and external information convergence point reaches access probability corresponding to the 99% of progressive performance and is known as being saturated Point.When access probability (namely the corresponding probability of access degree) is less than saturation point, increase access probability, external information convergence Point rises, and system performance increases.After access probability is greater than saturation point, increase access probability, external information convergence point is substantially not Become, but the complexity of system will continue to increase.In this way, can determine that target averagely accesses degree, then basis according to saturation point Target averagely accesses degree and determines access degree probability distribution information.

Aforementioned determining access degree probability distribution information is exemplified below in embodiment in order to more clearly describe the present invention Method, it should be understood that the protection scope of the embodiment of the present invention is not limited to this.Assuming that it is 3, following two that target, which averagely accesses degree, Kind information can be used as the access degree probability distribution information of the embodiment of the present invention:

The first information include four access degrees 0,2,4,6, corresponding probability is respectively 0.3,0.2,0.2,0.3；

Second of information includes an access degree 3, and corresponding probability is 1.

Specifically, when the number of users accessed in systems is less, second of information can be selected as aforementioned access degree Number probability distribution information.When the number of users accessed in systems is more, the first information can be selected as aforementioned access degree Number probability distribution information.

Optionally, it as another embodiment, according to access degree probability distribution information, with specific one or multiple connects Enter degree and when corresponding probability sends data to be sent to base station respectively, terminal device can be first general according to access degree Rate distributed intelligence determines that access the degree d, d when this sends data are nonnegative integer.Then, it is selected from data to be sent It selects d symbol and carries out linear, additive, and the result after sending linear, additive to base station.

For example, terminal device using low density parity check code (English: Low Density Parity Check Code, Referred to as: LDPC) data are encoded, obtain coded-bit.Then, symbol mapping is carried out to coded-bit, obtained a series of Modulation symbol.Terminal device determines access degree d when this sends data according to access degree probability distribution information.Then, D symbol is selected to carry out linear, additive from aforementioned modulation symbol.Finally, the symbol after linear, additive is occupied by system Running time-frequency resource is sent to base station.Terminal device repeats the mistake of the aforementioned determining modulation symbol for accessing degree and sending corresponding length Journey is sent until completing data.

Optionally, it as another embodiment, according to access degree probability distribution information, with specific one or multiple connects Enter degree and after corresponding probability sends data to be sent to base station respectively, terminal device receives feedback letter from base station Breath, feedback information are used to indicate the aforementioned data to be sent of base station decoding success.Then, terminal device according to receiving feedback The data volume sent at the time of information, adjustment access degree probability distribution information.

For example, can be after the data that send of correct decoding terminal device in base station namely decoding success terminal in base station is set After the data that preparation is sent, base station sends feedback information to terminal device.Wherein, which can be confirmation message.In this way, At the time of terminal device can be reached according to feedback information, present channel quality situation (e.g., preferable or poor) is determined.Usual feelings Under condition, if feedback information is later at the time of arrival, the data volume sent when reaching such as feedback information is greater than preset threshold Value, illustrates that channel quality is poor.On the contrary, having been sent when being reached such as feedback information if feedback information is more early at the time of arrival Data volume be less than preset threshold value, illustrate that channel quality is preferable.In turn, terminal device can be right according to channel quality condition Access degree probability distribution information is adjusted.

Optionally, as another embodiment, according to the data volume sent at the time of receiving feedback information, adjustment is connect When entering degree probability distribution information, if the data volume sent is greater than preset threshold value, increase access degree probability distribution letter The corresponding probability of the first access degree in breath, the first access degree are greater than target and averagely access degree.If the number sent It is less than preset threshold value according to amount, reduces the corresponding probability of the first access degree in access degree probability distribution information, first connects Enter degree and averagely accesses degree greater than target.

In this way, the adjustment process of aforementioned access degree probability distribution information can be completed quickly.It is aforementioned to be greater than target The access degree for averagely accessing degree is adjusted, and is properly termed as coarse adjustment.It is differed in the data volume sent with preset threshold value When little, the mode of fine tuning also can be used.Such as, the lesser access in adjustment access degree probability distribution information except zero Degree.

By taking the first information being described above as an example, access degree probability distribution information include four access degrees 0,2,4, 6, corresponding probability is respectively 0.3,0.2,0.2,0.3.If the data volume sent is greater than preset threshold value, at this moment can increase Adjunction enters the corresponding probability of degree 6 or 4.It specifically, can be by access degree probability distribution information adjustment are as follows: access degree number 0,2, 4,6, corresponding probability is respectively 0.2,0.1,0.3,0.4 or corresponding probability is respectively 0.2,0.2,0.2,0.4, or Corresponding probability is respectively 0.2,0.2,0.3,0.3.That is, in order to guarantee probability summation be 1, increase some or it is several When the corresponding probability of a access degree, need to reduce simultaneously the corresponding probability of other access degrees.It should be understood that aforementioned embodiments Equivalent embodiments should all fall in the protection scope of the embodiment of the present invention.

Similarly, if the data volume sent is less than preset threshold value, the side of adjustment access degree probability distribution information Method can refer to preceding method, and to avoid repeating, details are not described herein.

It will also be appreciated that the adjustment amount of the corresponding probability of the first access degree can be according to the data volume sent with the adjustment The speed degree of amount variation is adaptively adjusted.

Optionally, as another embodiment, data to be sent are encoded using the precoding of cbr (constant bit rate).In this way, In the case where data length to be sent determines, the length of coded-bit it is determined that, the decoding that can reduce base station side is multiple Miscellaneous degree.

Optionally, as another embodiment, system status information includes Signal to Noise Ratio (SNR).

Fig. 3 is the schematic flow chart of the communication means of another embodiment of the present invention.The method of Fig. 3 can be held by base station Row, base station 102 as shown in Figure 1.

301, system status information is sent to terminal device, in order to which the terminal device is according to the system status information Determine access degree probability distribution information, the system status information includes total access degree of total number of users and running time-frequency resource At least one of.

302, receive the data that the terminal device is sent according to the access degree probability distribution information, the access degree Number probability distribution informations are used to indicate when the terminal device sends data with specific one or multiple access degrees respectively pair The probability answered.

In this way, receiving terminal apparatus is distinguished in base station sends data according to aforementioned access degree probability distribution information.Namely shape At a kind of distributed communication system, not needing base station is that each terminal device distributes the communication resource or access way.

Optionally, as one embodiment, the terminal device described in decoding success send data when, Xiang Suoshu terminal is set Preparation send feedback information.

Optionally, as another embodiment, the system status information includes Signal to Noise Ratio (SNR).

Fig. 4 is the schematic flow chart of the communication means of another embodiment of the present invention.This is further described below with reference to Fig. 4 The communication means of inventive embodiments.It should be noted that these examples are intended merely to that those skilled in the art is helped to more fully understand this hair Bright embodiment, the range for the embodiment that is not intended to limit the present invention.

As shown in figure 4, UE 1, UE 2 ..., UE M access base station are communicated.The data to be sent of UE 1 areLength is K₁Bit is input to encoder and is encoded, obtains coded-bit.Coded-bit progress symbol is reflected A series of modulation symbol is obtained after penetratingAdaptive adjuster is according to the system status information sent from base station side It generates or adjustment accesses degree probability distribution information.Degree generator determines this transmission according to access degree probability distribution information Degree d₁, data selector MUX is from modulation symbolMiddle selection d₁A symbol is input to adder ∑ and carries out linearly It is added, final transmitting to channel time/frequency source block.Degree generator repeats aforementioned process, until successfully transmitting aforementioned to be sent Data

Similarly, the data to be sent of UE M areLength is K_MBit is input to coding and is encoded, Obtain coded-bit.Coded-bit obtains a series of modulation symbol after carrying out symbol mappingLength is N_MThan It is special.Adaptive adjuster is generated according to the system status information sent from base station side or adjustment access degree probability distribution information. Degree generator determines this degree d sent according to access degree probability distribution information_M, data selector MUX from modulation accord with NumberMiddle selection d_MA symbol is input to adder ∑ and carries out linear, additive, final transmitting to channel running time-frequency resource Block.Degree generator repeats aforementioned process, until successfully transmitting aforementioned modulation symbol

Base station obtains system status information, and sends system status information to each UE.The number that base station will be received from UE According to being demodulated, the corresponding demodulating information of each time/frequency source block is obtained.Then, according to the verification relationship of encoder, each UE The linear, additive relationship of access procedure and the linear superposition relationship of channel constitute a unified factor graph (e.g., Tanner schemes), And Multiuser Detection decoding is iterated on the factor graph.When the message of one UE of base station decoding success, sent to the UE Confirmation message.Meanwhile the current reception sequence of the user being eliminated from factor graph.Base station is based on a factor graph progress in this way Iterative decoding does not need complicated Multiuser Detection and SISO decoder iteration process, thus reduces system complexity, namely Decoding complexity.

Fig. 5 is the schematic block diagram of the terminal device of one embodiment of the invention.Terminal device 50 in Fig. 5 includes receiving Unit 501, determination unit 502 and transmission unit 503.

Receiving unit 501, for from base station receiving system status information, system status information to include total number of users and time-frequency At least one of total access degree of resource.

Determination unit 502, for determining access degree probability distribution information according to system status information, access degree is general Rate distributed intelligence is used to indicate corresponding probability when sending data respectively with specific one or multiple access degrees.

For example, including one or more specific access degrees in access degree probability distribution information and corresponding general Rate.Terminal device specific access degree as indicated and corresponding probability send data to base station.Specifically, access degree Number probability distribution informations can indicate in table form, can also be indicated with function expression.Such as, access degree point Cloth functionWherein, d is access degree, p_dFor corresponding probability, N is the length of coded-bit.

Transmission unit 503, for according to access degree probability distribution information, with specific one or multiple access degrees with And corresponding probability sends data to be sent to base station respectively.

Optionally, as one embodiment, determination unit 502 is specifically used for, and according to system status information, determines that target is flat Access degree.Then, degree is averagely accessed according to target, determines access degree probability distribution information.

Condition two, the sum of aforementioned each probability are equal to 1.

In addition, determining that terminal device can be combined with Signal to Noise Ratio (SNR), data hair when accessing degree probability distribution information The other factors such as demand are sent to determine the access degree probability distribution information.Assuming that each subscriber channel gain is identical, outer letter is obtained The iteration performance of breath.With the increase of the total access degree of time/frequency source block, the convergence point of average external information quickly tends to be saturated. When the total access degree of time/frequency source block is infinitely great, the convergence point of external information is progressive performance, and external information convergence point reaches It is known as saturation point to access probability corresponding to the 99% of progressive performance.When access probability (namely the corresponding probability of access degree) When less than saturation point, increase access probability, external information convergence point rises, and system performance increases.Satisfy when access probability is greater than After point, increase access probability, external information convergence point is basically unchanged, but the complexity of system will continue to increase.In this way, can be with It according to saturation point, determines that target averagely accesses degree, degree is then averagely accessed according to target and determines access degree probability distribution Information.

Optionally, as another embodiment, transmission unit 503 is specifically used for, according to access degree probability distribution information, really Access degree d when this fixed transmission data.Select d symbol progress linear, additive from data to be sent, and to base station Result after sending linear, additive.

For example, terminal device encodes data using low density parity check code LDPC, coded-bit is obtained.So Afterwards, symbol mapping is carried out to coded-bit, obtains a series of modulation symbols.Terminal device is according to access degree probability distribution letter Breath determines access degree d when this sends data.Then, d symbol is selected to carry out linear phase from aforementioned modulation symbol Add.Finally, the symbol after linear, additive is sent to base station by the running time-frequency resource that system occupies.Terminal device repeats aforementioned true Surely it accesses degree and sends the process of the modulation symbol of corresponding length, sent until completing data.

Optionally, as another embodiment, receiving unit 501 is also used to, and receives feedback information from base station, feedback information is used In the data that instruction base station decoding success is to be sent.Determination unit 502 is also used to, according at the time of receiving feedback information The data volume of transmission, adjustment access degree probability distribution information.

Optionally, as another embodiment, determination unit 502 is specifically used for, and presets if the data volume sent is greater than Threshold value, increase the first corresponding probability of access degree in access degree probability distribution information, the first access degree is greater than mesh Mark averagely accesses degree.

It should be understood that the adjustment amount of the corresponding probability of the first access degree can be according to the data volume sent with the adjustment amount The speed degree of variation is adaptively adjusted

Optionally, as another embodiment, data to be sent are encoded using the precoding of cbr (constant bit rate).In this way, In the case where data length to be sent determines, the length of coded-bit it is determined that, the decoding that can reduce base station side is multiple Miscellaneous degree.Meanwhile being encoded using the precoding of cbr (constant bit rate), it can adaptively approach channel capacity.

Fig. 6 is the schematic block diagram of the base station of one embodiment of the invention.Base station 60 in Fig. 6 includes transmission unit 601 With receiving unit 602.

Transmission unit 601, for sending system status information to terminal device, in order to which terminal device is according to system mode Information determines access degree probability distribution information, and system status information includes total access degree of total number of users and running time-frequency resource At least one of.

Receiving unit 602, for the data that receiving terminal apparatus is sent according to access degree probability distribution information, access degree Number probability distribution informations are used to indicate corresponding when terminal device sends data with specific one or multiple access degrees respectively Probability.

Optionally, as one embodiment, transmission unit 601 is also used to, in the data that decoding success terminal device is sent When, feedback information is sent to terminal device.

The terminal device 70 of Fig. 7 can be used for realizing each step and method in above method embodiment.In the embodiment of Fig. 7, Terminal device 70 includes antenna 701, transmitter 702, receiver 703, processor 704 and memory 705.Processor 704 controls The operation of terminal device 70, and can be used for handling signal.Memory 705 may include read-only memory and random access memory Device, and instruction and data is provided to processor 704.Transmitter 702 and receiver 703 may be coupled to antenna 701.Terminal device 70 various components are coupled by bus system 709, and wherein bus system 709 is also wrapped in addition to including data/address bus Include power bus, control bus and status signal bus in addition.But for the sake of clear explanation, various buses are all designated as in figure Bus system 709.For example, terminal device 70 can be access terminal 116 or access terminal 122 shown in Fig. 1.

Specifically, memory 705 can store the instruction for executing following procedure:

Optionally, as one embodiment, memory 705 can also store the instruction for executing following procedure:

, according to system status information, mesh is being determined when determining access degree probability distribution information according to system status information Mark averagely accesses degree；Degree is averagely accessed according to target, determines access degree probability distribution information.

Optionally, as another embodiment, memory 705 can also store the instruction for executing following procedure:

According to access degree probability distribution information, divided with specific one or multiple access degrees and corresponding probability When not sending data to be sent to base station, according to access degree probability distribution information, access when this sends data is determined Degree d；D symbol is selected to carry out linear, additive from data to be sent, and to the result after base station transmission linear, additive.

According to access degree probability distribution information, divided with specific one or multiple access degrees and corresponding probability After not sending data to be sent to base station, feedback information is received from base station, feedback information is used to indicate base station decoding success Data to be sent；According to the data volume sent at the time of receiving feedback information, adjustment access degree probability distribution letter Breath.

According to the data volume sent at the time of receiving feedback information, when adjustment accesses degree probability distribution information, If the data volume sent is greater than preset threshold value, the first access degree increased in access degree probability distribution information is corresponding Probability, first access degree be greater than target averagely accesses degree；

Data to be sent are encoded using the precoding of cbr (constant bit rate).

System status information includes Signal to Noise Ratio (SNR).

The base station 80 of Fig. 8 can be used for realizing each step and method in above method embodiment.In the embodiment of Fig. 8, base station 80 include antenna 801, transmitter 802, receiver 803, processor 804 and memory 805.804 control base station 80 of processor Operation, and can be used for handling signal.Memory 805 may include read-only memory and random access memory, and to processor 804 provide instruction and data.Transmitter 802 and receiver 803 may be coupled to antenna 801.The various components of base station 80 pass through Bus system 809 is coupled, and wherein bus system 809 further includes power bus, controls always in addition to including data/address bus Line and status signal bus in addition.But for the sake of clear explanation, various buses are all designated as bus system 809 in figure.For example, Base station 80 can be base station 102 shown in Fig. 1.

Specifically, memory 805 can store the instruction for executing following procedure:

Optionally, as one embodiment, memory 805 can also store the instruction for executing following procedure:

After the data that receiving terminal apparatus is sent according to access degree probability distribution information, set in decoding success terminal When the data that preparation is sent, feedback information is sent to terminal device.

Optionally, as another embodiment, memory 805 can also store the instruction for executing following procedure:

System status information includes Signal to Noise Ratio (SNR).

It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant to execute suitable Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This A little functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Specially Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not It is considered as beyond the scope of this invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or beg for Opinion mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit Or communication connection, it is also possible to electricity, mechanical or other form connections.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs Purpose.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated Unit both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random access memory (English: Random Access Memory, referred to as: RAM), magnetic disk or The various media that can store program code such as CD.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection scope subject to.

Claims

1. a kind of communication means, which is characterized in that the described method includes:

From base station receiving system status information, the system status information includes total access degree of total number of users and running time-frequency resource At least one of number；

According to the system status information, determine that access degree probability distribution information, the access degree probability distribution information are used Corresponding probability when indicating to send data respectively with specific one or multiple access degrees；

According to the access degree probability distribution information, with specific one or multiple access degrees and corresponding probability Data to be sent are sent to the base station respectively.

2. determining access degree the method according to claim 1, wherein described according to the system status information Number probability distribution information, comprising:

According to the system status information, determine that target averagely accesses degree；

Degree is averagely accessed according to the target, determines the access degree probability distribution information.

3. method according to claim 1 or 2, which is characterized in that it is described according to the access degree probability distribution information, Data to be sent are sent to the base station respectively with specific one or multiple access degrees and corresponding probability, are wrapped It includes:

According to the access degree probability distribution information, determine that access the degree d, d when this sends data are nonnegative integer；

D symbol is selected to carry out linear, additive from the data to be sent, and to after base station transmission linear, additive As a result.

4. according to the method in any one of claims 1 to 3, which is characterized in that described general according to the access degree Rate distributed intelligence is sent to the base station pending respectively with specific one or multiple access degrees and corresponding probability After the data sent, the method also includes:

Feedback information is received from the base station, the feedback information is used to indicate number to be sent described in the base station decoding success According to；

According to the data volume sent at the time of receiving the feedback information, the access degree probability distribution letter is adjusted Breath.

5. according to the method described in claim 4, it is characterized in that, the basis at the time of receiving the feedback information The data volume of transmission adjusts the access degree probability distribution information, comprising:

If the data volume sent is greater than preset threshold value, increase by first in the access degree probability distribution information The corresponding probability of degree is accessed, the first access degree is greater than target and averagely accesses degree；

If the data volume sent is less than preset threshold value, reduce first in the access degree probability distribution information The corresponding probability of degree is accessed, the first access degree is greater than target and averagely accesses degree.

6. the method according to any one of claims 1 to 5, which is characterized in that the data to be sent are using fixation The precoding of code rate is encoded.

7. method according to any one of claim 1 to 6, which is characterized in that the system status information includes noise Compare SNR.

8. a kind of communication means, which is characterized in that the described method includes:

System status information is sent to terminal device, is accessed in order to which the terminal device is determined according to the system status information Degree probability distribution information, the system status information include in total access degree of total number of users and running time-frequency resource at least It is a kind of；

Receive the data that the terminal device is sent according to the access degree probability distribution information, the access degree probability point Cloth information is used to indicate corresponding probability when the terminal device sends data with specific one or multiple access degrees respectively.

9. according to the method described in claim 8, it is characterized in that, receiving the terminal device according to the access degree described After the data that number probability distribution information is sent, the method also includes:

When the data that the terminal device described in decoding success is sent, Xiang Suoshu terminal device sends feedback information.

10. method according to claim 8 or claim 9, which is characterized in that the system status information includes Signal to Noise Ratio (SNR).

11. a kind of terminal device, which is characterized in that the terminal device includes:

Receiving unit, for from base station receiving system status information, the system status information to include total number of users and time-frequency money At least one of total access degree in source；

Determination unit, for determining access degree probability distribution information according to the system status information, the access degree is general Rate distributed intelligence is used to indicate corresponding probability when sending data respectively with specific one or multiple access degrees；

Transmission unit, for according to the access degree probability distribution information, with specific one or multiple access degrees And corresponding probability sends data to be sent to the base station respectively.

12. terminal device according to claim 11, which is characterized in that the determination unit is specifically used for,

13. terminal device according to claim 11 or 12, which is characterized in that the transmission unit is specifically used for,

14. terminal device described in any one of 1 to 13 according to claim 1, which is characterized in that

The receiving unit is also used to, from the base station receive feedback information, the feedback information be used to indicate the base station at Function decodes the data to be sent；

The determination unit is also used to, according to the data volume sent at the time of receiving the feedback information, described in adjustment Access degree probability distribution information.

15. terminal device according to claim 14, which is characterized in that the determination unit is specifically used for,

16. terminal device described in any one of 1 to 15 according to claim 1, which is characterized in that the data to be sent are adopted It is encoded with the precoding of cbr (constant bit rate).

17. terminal device described in any one of 1 to 16 according to claim 1, which is characterized in that the system status information packet Include Signal to Noise Ratio (SNR).

18. a kind of base station, which is characterized in that the base station includes:

Transmission unit, for sending system status information to terminal device, in order to which the terminal device is according to the system shape State information determines access degree probability distribution information, and the system status information includes that total number of users and the total of running time-frequency resource connect Enter at least one of degree；

Receiving unit, the data sent for receiving the terminal device according to the access degree probability distribution information are described Access degree probability distribution information is used to indicate the terminal device and sends number respectively with specific one or multiple access degrees According to when corresponding probability.

19. base station according to claim 18, which is characterized in that the transmission unit is also used to, described in decoding success When the data that terminal device is sent, Xiang Suoshu terminal device sends feedback information.

20. base station described in 8 or 19 according to claim 1, which is characterized in that the system status information includes Signal to Noise Ratio (SNR).