CN103354631B

CN103354631B - The communication control method of multiplex communication system resource and device

Info

Publication number: CN103354631B
Application number: CN201310262939.0A
Authority: CN
Inventors: 张阳; 冯淑兰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Haining huangwan town Asset Management Co., Ltd
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2016-12-28
Anticipated expiration: 2033-06-27
Also published as: CN103354631A

Abstract

Embodiments provide communication control method and the device of a kind of multiplex communication system resource, the method comprise determining that the first communication link and the second communication link corresponding different pre decodings order；Calculating each pre decoding order and include the first signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter for corresponding during optimum decoding order, described optimum decoding order is to make communicating link data transmission and the maximum pre decoding order of speed in different pre decoding order；Search different parameters span, determine the target pre decoding order that first object signal-to-noise ratio parameter is corresponding with the second target sir parameter, reduce interference effect by the embodiment of the present invention, it is ensured that message transmission rate, improve communication quality.

Description

The communication control method of multiplex communication system resource and device

Technical field

The present invention relates to wireless communication technology field, the communication of a kind of multiplex communication system resource Control method and device.

Background technology

D2D (Device-to-Device, device-to-device) communication is that a kind of permission is provided by reuse pattern between terminal The new technique that source directly communicates.At legacy communications system, such as cellular communication system introduces D2D communication technology, no But honeycomb system capacity can be expanded, but also there is saving frequency spectrum resource, reduce the advantage such as energy consumption, shortening time delay, therefore Concern to increasing research worker.

Still as a example by cellular communication system, during D2D communication multiplexed cellular systems frequency spectrum resource, cellular communication link and D2D Communication link generally takes up similar frequency bands and communicates, to ensure certain transfer rate.But, lead to owing to there is honeycomb simultaneously Letter link and D2D communication link, will necessarily interfere with each other between the two communication link, thus affect cellular communication and D2D The communication quality of communication.

In order to reduce the impact of interference in prior art, generally according to receiving connecing of purpose signal and interference signal in signal Receive power, and use different decoding order with demodulate purpose signal and interference signal, such as in the reception merit of purpose signal When rate is more than the reception power of interference signal, interference signal is considered as noise, directly demodulates purpose signal, thus elder generation can be avoided The bigger interference that demodulation interference signal causes；And for example, when the reception power of purpose signal is less than the reception power of interference signal, The most first demodulate interference signal, and by interference signal after receiving and isolating signal, re-demodulation purpose signal, such that it is able to keep away Exempt from directly to demodulate the bigger interference that purpose signal causes.

But, inventor finds during realizing the present invention, use in prior art this according to purpose signal and The power that receives of interference signal determines the mode of different decoding order, is only applicable in a communication link.And when there being two Communication link, when carrying out signal transmission in two communication links, the signal of a communication link transmission is another communication The interference signal of link, when the decoding order determined according to prior art manner in a communication link is decoded, gesture The message transmission rate of another communication link must be impacted.

Summary of the invention

In view of this, the invention provides the communication control method of a kind of multiplex communication system resource, existing in order to solve In technology interference impact and communicating link data transfer rate cannot be ensured, the technical problem that communication quality is relatively low.

Present invention also offers the communication control unit of a kind of multiplex communication system resource, in order to ensure that said method is in reality Realization in the application of border.

For achieving the above object, the present invention provides following technical scheme:

A first aspect of the present invention, it is provided that the communication control method of a kind of multiplex communication system resource, including:

Determine the first communication link and the second communication link corresponding different pre decodings order, each pre decoding order include The reception signal decoding order of the first communication link and the reception signal decoding order of the second communication link；

Calculate each pre decoding order and include the first signal-to-noise ratio parameter and second for corresponding during optimum decoding order The parameter value scope of signal-to-noise ratio parameter, described optimum decoding order is for making communication chain way in different pre decoding orders According to the pre decoding order that transmission and speed are maximum；

Search different parameters span, determine first object signal-to-noise ratio parameter and the second target sir ginseng The target pre decoding order that number is corresponding.

In conjunction with first aspect, in the implementation that the first is possible, described calculating each pre decoding order is optimal solution The parameter value scope including the first signal-to-noise ratio parameter and secondary signal interference ratio parameter corresponding during code order includes:

According to the bitrate constraints of communicating link data transfer rate, calculate each pre decoding order suitable for optimum decoding Corresponding during sequence include the first signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

In conjunction with the first possible implementation of first aspect or first aspect, in the possible implementation of the second, institute State lookup different parameters span, determine that first object signal-to-noise ratio parameter is corresponding with the second target sir parameter Target pre decoding order include:

The first signal transmission power and the secondary signal of the second communication link according to the first communication link launch power Default constraints, determine from different parameter value scopes first object signal-to-noise ratio parameter and the second target letter Number interference ratio parameter；

Determine that the described first object signal-to-noise ratio parameter target corresponding with the second target sir parameter solves in advance Code order and the first signal transmission power and secondary signal launch the power allocation information of power.

In conjunction with first aspect the second may implementation, in the implementation that the third is possible, described according to the First signal transmission power of one communication link and the secondary signal of the second communication link launch the default constraints of power, First object signal-to-noise ratio parameter and the second target sir parameter bag is determined from different parameter value scopes Include:

The first power limited scope and first letter of power is launched according to the first signal transmission power and secondary signal Number interference ratio parameter and the incidence relation of secondary signal interference ratio parameter, determine in different parameters span, meet this first The first preset signals interference ratio parameter that power limited scope is limited and the second corresponding preset signals interference ratio parameter；

Determine the first different preset signals interference ratio parameters corresponding second preset signals interference ratio parameter institute right The communicating link data transmission answered and speed；

Using the first corresponding with speed for the transmission of maximum communication link data preset signals interference ratio parameter as first object Signal-to-noise ratio parameter, the second preset signals interference ratio parameter is as the second target sir parameter.

In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation, each pre decoding Order at least one parameter value scope corresponding, described determines in different parameters span, meets this first power limited model Enclose the first limited preset signals interference ratio parameter and the second corresponding preset signals interference ratio parameter include:

Determine in parameters span, meet that the boundary value of this first power limited scope is limited and each In the boundary value of parameter value scope, meet the first preset signals interference ratio parameter that this first power limited scope limited and The second corresponding preset signals interference ratio parameter.

In conjunction with the possible implementation of the second of first aspect, in the 5th kind of possible implementation, described according to first First signal transmission power of communication link and the secondary signal of the second communication link launch the default constraints of power, from Different parameter value scopes being determined, first object signal-to-noise ratio parameter and the second target sir parameter include:

Launch the second power limited scope of power according to the first signal transmission power and secondary signal, determine different ginseng In number spans, minimum equipment power dissipation corresponding and meet described second power limited scope and and bitrate constraints institute The the first signal-to-noise ratio parameter limited and secondary signal interference ratio parameter, respectively as first object signal-to-noise ratio parameter With the second target sir parameter.

In conjunction with the 5th kind of first aspect may implementation, implementation described may determine difference at the 6th kind In parameter value scope, minimum equipment power dissipation corresponding and meet described second power limited scope and and bitrate constraints The the first signal-to-noise ratio parameter limited and secondary signal interference ratio parameter, join respectively as first object signal-to-noise ratio Number and the second target sir parameter include:

Determine that the first signal transmission power is launched power and is respectively the first limit corresponding during minimum limit value with secondary signal Signal-to-noise ratio parameter processed and second limits signal-to-noise ratio parameter；

Determine in different parameters span, limit signal-to-noise ratio parameter and described second closest to described first and limit Signal-to-noise ratio parameter, and meet described second power limited scope and and the first signal of being limited of bitrate constraints do Disturb ratio parameter and secondary signal interference ratio parameter, do respectively as first object signal-to-noise ratio parameter and the second echo signal Disturb and compare parameter.

In conjunction with first aspect the second may implementation, the 7th kind may in implementation, described determine described First object signal-to-noise ratio parameter corresponding with the second target sir parameter target pre decoding order and first letter After number launching the power allocation information that power and secondary signal launch power, described method also includes:

Described target decoder order is respectively supplied to the first receiving terminal and the second receiving terminal, and distributes according to described power Power emission the first signal is launched determined by information；

Described power allocation information is supplied to the second transmitting terminal, triggers described second transmitting terminal and distribute according to described power Power emission secondary signal is launched determined by information.

In conjunction with the first possible implementation of first aspect or first aspect, in the 8th kind of possible implementation, Described calculating each pre decoding order includes the first signal-to-noise ratio parameter and secondary signal for corresponding during optimum decoding order The parameter value scope of interference ratio parameter includes:

When Gaussian noise power is less than the reception power of purpose signal and interference signal, calculate each pre decoding order The first signal-to-noise ratio parameter and the parameter value model of secondary signal interference ratio parameter is included for corresponding during optimum decoding order Enclose.

In conjunction with the 8th kind of possible implementation of first aspect, in the 9th kind of possible implementation, described method is also wrapped Include:

When Gaussian noise power is more than the reception power of purpose signal and interference signal, determine different pre decoding order In optimum pre decoding order be target pre decoding sequentially.

A second aspect of the present invention provides the communication control unit of a kind of multiplex communication system resource, including:

Decoding order acquisition module, suitable for determining the first communication link and different pre decodings corresponding to the second communication link Sequence, each pre decoding order includes reception signal decoding order and the reception signal solution of the second communication link of the first communication link Code order；

Parameter value computing module, includes first for calculating each pre decoding order for corresponding during optimum decoding order Signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter, described optimum decoding order is different pre decodings The pre decoding order of communicating link data transmission and speed maximum is made in Shun Xu；

First controls information determination module, for searching the different parameters value model that described parameter value computing module calculates Enclose, determine the target pre decoding order that first object signal-to-noise ratio parameter is corresponding with the second target sir parameter.

In conjunction with second aspect, in the first possible implementation, described parameter value computing module is specifically for basis The bitrate constraints of communicating link data transfer rate, calculates bag corresponding when each pre decoding order is optimum decoding order Include the first signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

In conjunction with the first possible implementation of second aspect or second aspect, in the possible implementation of the second, institute State the first control information determination module to include:

Target component determines module, for the first signal transmission power according to the first communication link and the second communication chain The secondary signal on road launches the default constraints of power, determines that first object signal is done from different parameter value scopes Disturb than parameter and the second target sir parameter；

Control information determines submodule, is used for determining that described first object signal-to-noise ratio parameter and the second echo signal are done Disturb the target pre decoding order more corresponding than parameter and the first signal transmission power and the power distribution of secondary signal transmitting power Information.

In conjunction with the implementation that the second of second aspect is possible, in the third possible implementation, described target is joined Number determines that module includes:

First parameter determination module, for launching the first merit of power according to the first signal transmission power and secondary signal Rate limits scope and the first signal-to-noise ratio parameter and the incidence relation of secondary signal interference ratio parameter, determines that different parameters takes In value scope, meet the first preset signals interference ratio parameter and corresponding second that this first power limited scope is limited Preset signals interference ratio parameter；

Rate calculation module, for determining the second default letter that the first different preset signals interference ratio parameters is corresponding Communicating link data transmission number corresponding to interference ratio parameter and speed；

Second parameter determination module, for doing maximum communication link data transmission the first preset signals corresponding with speed Disturbing work than parameter as first object signal-to-noise ratio parameter, the second preset signals interference ratio parameter is done as the second echo signal Disturb and compare parameter.

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, described first parameter Determine module specifically for launch according to the first signal transmission power and secondary signal the first power limited scope of power with And first signal-to-noise ratio parameter and the incidence relation of secondary signal interference ratio parameter, determine in parameters span, full Foot this first power limited scope boundary value limited and in the boundary value of parameters span, meet this first The first preset signals interference ratio parameter that power limited scope is limited and the second corresponding preset signals interference ratio parameter.

In conjunction with the possible implementation of the second of second aspect, in the 5th kind of possible implementation, described target component Determine that module specifically for launching the second power limited scope of power, really according to the first signal transmission power and secondary signal Determine in different parameters span, minimum equipment power dissipation corresponding and meet described second power limited scope and and speed limit The first signal-to-noise ratio parameter that condition processed is limited and secondary signal interference ratio parameter, do respectively as first object signal Disturb than parameter and the second target sir parameter.

In conjunction with the 5th kind of possible implementation of second aspect, in the 6th kind of possible implementation, described target component Determine that module includes:

3rd parameter determination module, is used for determining that the first signal transmission power and secondary signal are launched power and be respectively minimum The first restriction signal-to-noise ratio parameter and second corresponding during limits value limits signal-to-noise ratio parameter；

4th parameter determination module, is used for determining in described parameter value scope, limits signal closest to described first and does Disturb and limit signal-to-noise ratio parameter than parameter and described second, and meet described second power limited scope and and rate limit The first signal-to-noise ratio parameter that condition is limited and secondary signal interference ratio parameter, respectively as first object signal disturbing Than parameter and the second target sir parameter.

In conjunction with the possible implementation of the second of second aspect, in the 7th kind of possible implementation, also include:

Information providing module, for described target decoder order is respectively supplied to the first receiving terminal and the second receiving terminal, Described power allocation information is supplied to the second transmitting terminal, triggers described second transmitting terminal according to described power allocation information institute really Fixed transmitting power emission secondary signal；

Signal transmitting module, for according to launching power emission the first signal determined by described power allocation information.

In conjunction with the first possible implementation of second aspect or second aspect, in the 8th kind of possible implementation, institute State parameter value computing module specifically for when Gaussian noise power less than purpose signal and interference signal reception power time, Calculate each pre decoding order and include the first signal-to-noise ratio parameter and secondary signal interference for corresponding during optimum decoding order Parameter value scope than parameter.

In conjunction with the 8th kind of possible implementation of second aspect, in the 9th kind of possible implementation, also include:

Second controls information determination module, for when Gaussian noise power is more than purpose signal and the reception of interference signal During power, determine that the optimum pre decoding order in different pre decoding order is target pre decoding order.

Understand via above-mentioned technical scheme, compared with prior art, the invention provides a kind of multiplex communication system money The communication control method in source and device, in the communication pattern that the first communication link and the second communication link coexist, be determined by Different pre decodings orders, and obtain each pre decoding order for the first signal-to-noise ratio parameter corresponding during optimum decoding order and The parameter value scope of secondary signal interference ratio parameter, thus according to first signal transmission power and of the first communication link The secondary signal of two communication links launches the default constraints of power, determines the first mesh from different parameter value scopes Mark signal-to-noise ratio parameter and the second target sir parameter；According to the first object signal-to-noise ratio parameter determined and Two target sir parameters, can obtain target pre decoding order and the power allocation information of its correspondence, therefore communicate Link transmitting terminal can be according to launching power transmission signal determined by this power allocation information, receiving terminal can be according to this target The signal decoding order of pre decoding order regulation carries out signal decoding, can either reduce interference effect, ensure that two lead to simultaneously The message transmission rate of letter link, improves communication quality.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to The accompanying drawing provided obtains other accompanying drawing.

Fig. 1 is the flow chart of one embodiment of communication control method of the present invention a kind of multiplex communication system resource；

Fig. 2 is the flow chart of another embodiment of communication control method of the present invention a kind of multiplex communication system resource；

Fig. 3 is the flow chart of another embodiment of communication control method of the present invention a kind of multiplex communication system resource；

Fig. 4 is the flow chart of another embodiment of communication control method of the present invention a kind of multiplex communication system resource；

Fig. 5 is the communication pattern schematic diagram that in the present invention, D2D communication link and cellular communication link coexist；

Fig. 6 is the flow chart of another embodiment of communication control method of the present invention a kind of multiplex communication system resource；

Fig. 6 a is the expression schematic diagram of a kind of parameter value scope in the present invention；

Fig. 6 b is the expression schematic diagram of another kind of parameter value scope in the present invention；

Fig. 6 c is the expression schematic diagram of another parameter value scope in the present invention；

Fig. 6 d is the expression schematic diagram of another parameter value scope in the present invention；

Fig. 6 e is the expression schematic diagram of another parameter value scope in the present invention；

Fig. 7 is the structural representation of one embodiment of communication control unit of the present invention a kind of multiplex communication system resource；

Fig. 8 is the structural representation of another embodiment of communication control unit of the present invention a kind of multiplex communication system resource Figure；

Fig. 9 is the structural representation of another embodiment of communication control unit of the present invention a kind of multiplex communication system resource Figure；

Figure 10 is the structural representation of another embodiment of communication control unit of the present invention a kind of multiplex communication system resource Figure；

Figure 11 is a kind of simulation result schematic diagram of technical solution of the present invention；

Figure 12 is the another kind of simulation result schematic diagram of technical solution of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.

One of main thought of the present invention may include that

In the communication pattern that the first communication link and the second communication link coexist, the first communication link and the second communication chain Road composition interference channel, is determined by different pre decoding order, and obtains each pre decoding order for during optimum decoding order pair The the first signal-to-noise ratio parameter answered and the parameter value scope of secondary signal interference ratio parameter, thus according to first object signal Interference ratio parameter and the second target sir parameter, can find corresponding pre decoding from this parameter value scope Sequentially, for target pre decoding order, the receiving terminal in communication link can carry out signal decoding according to this target pre decoding order, This target pre decoding order is i.e. as first object signal-to-noise ratio parameter and the second echo signal in signal-to-noise ratio parameter During interference ratio parameter, corresponding optimum pre decoding order, this optimum pre decoding order ensure that data transmission and speed are maximum, Therefore can reduce interference effect, and ensure that the message transmission rate of two communication links simultaneously, improve communication quality.

Fig. 1 is the flow chart of one embodiment of communication control method of the present invention a kind of multiplex communication system resource, primary It is applied to D2D (Device-to-Device, device-to-device) communication system and legacy communications system, such as cellular network communication In system, by the coexistance model that multiplex communication system resource communicates, there is two communication links, example in this coexistance model As when multiplexing cellular communication system resource, including D2D communication link and cellular communication link, two communication link compositions disturb Channel.

The method can include following step:

Step 101: determine the first communication link and the second communication link corresponding different pre decodings order.

Wherein, what each pre decoding order included the first communication link receives signal decoding order and the second communication link Receive signal decoding order.

In the present embodiment, the first communication link and the second communication link are two different communication links, respectively can be with table Show when D2D communication system multiplexing legacy communications system resource, common two communication links existed.As in multiplexing cellular communication During system resource: the first communication link may refer to D2D communication link or cellular communication link, accordingly, the second communication chain Road may refer to cellular communication link or D2D communication link.

After receiving terminal receives reception signal, need therefrom to demodulate purpose signal, due to depositing of disturbing in communication process , the most existing reception signal decoding order mainly includes two kinds: interference signal is considered as noise, demodulates from receiving signal Go out purpose signal；And purpose signal is considered as noise, from receiving, signal demodulates interference signal, then from receiving signal Isolate interference signal, finally the reception signal after isolating interference signal demodulates purpose signal.

Due to the existence of interference, particularly at NOS(Non-Orthogonal Sharing mode, nonopiate shared mould Formula) in, in order to improve resource utilization, the first communication link and the second communication link take identical resource, including the time, frequently Rate and space resources etc., at this moment the transmission signal in two communication links disturbs signal each other, namely the first communication link First signal, relative to signal for the purpose of the first receiving terminal, is interference signal relative to second communication link the second receiving terminal, The secondary signal of the second communication link is relative to signal for the purpose of the second receiving terminal, relative to the first reception of the first communication link End is interference signal.Such as, as a example by upward signal, the signal that the transmitting terminal in D2D communication system sends receives relative to D2D Signal for the purpose of equipment, is interference signal relative to the base station in cellular communication system.

Therefore the receiving terminal in different communication link all may have two kinds to receive signal decoding order, then this pre decoding order Four kinds of different situations can be included, it may be assumed that

A: the first receiving terminal and the second receiving terminal the most directly demodulate purpose signal.

B: the first receiving terminal directly demodulates purpose signal；Second receiving terminal first demodulates interference signal, by interference signal from connecing After the collection of letters number is isolated, re-demodulation purpose signal.

C: the second receiving terminal directly demodulates purpose signal；First receiving terminal first demodulates interference signal, by interference signal from connecing After the collection of letters number is isolated, re-demodulation purpose signal.

D: the first receiving terminal first demodulates interference signal, after interference signal is isolated from reception signal, and re-demodulation purpose Signal；Second receiving terminal first demodulates interference signal, after interference signal is isolated from reception signal, and re-demodulation purpose signal.

First receiving terminal is the signal receiving end in the first communication link, and the second receiving terminal is the letter in the second communication link Number receiving terminal, the most still as a example by upward signal, when the first communication link is cellular communication link, the first receiving terminal i.e. can refer to Base station；During for D2D communication link, the first receiving terminal i.e. may refer to D2D equipment.

The different signal decoding order that receive can directly affect the message transmission rate of communication link, and the present embodiment considers Different communication link, the pattern first coexisted for different communication link predefines out several possible pre decoding order.

Step 102: calculate each pre decoding order and include the first signal-to-noise ratio ginseng for corresponding during optimum decoding order Number and the parameter value scope of secondary signal interference ratio parameter.

Wherein, this signal-to-noise ratio parameter represents that the ratio of purpose signal transmission power and interference signal transmission power closes System.

Signal-to-noise ratio parameter be for the purpose of signal and interference signal signal-to-noise ratio (SIR), SIR represents purpose signal Launch the ratio relation of power and interference signal transmission power, and relevant with respective channel gain.This first signal-to-noise ratio Parameter refers to that the signal-to-noise ratio parameter of the first communication link, secondary signal interference ratio parameter refer to the signal of the second communication link Interference ratio parameter.

For example, it is assumed that P₁It is the first signal transmission power, P₂Power is launched for secondary signal,Represent the first transmitting terminal And the link channel gain that first between receiving terminal,Represent that the link channel between the second transmitting terminal and the first receiving terminal increases Benefit,Represent the link channel gain between the second transmitting terminal and the second receiving terminal,Represent the first transmitting terminal and second Link channel gain between receiving terminal.Then the first signal-to-noise ratio parameter i.e. can be expressed asLead to first In letter link, P₂It is interference signal transmission power；Secondary signal interference ratio parameter i.e. can be expressed as? In second communication link, P₁It is interference signal transmitting power.

Owing to decoding order is different, the message transmission rate of communication link is the most different, and signal-to-noise ratio parameters relationship Message transmission rate to communication link.Described optimum decoding order is for making communicating link data pass in different pre decoding orders Defeated and that speed is maximum pre decoding order, can obtain the first signal disturbing of the first communication link according to this optimum decoding order Parameter value scope than the secondary signal interference ratio parameter of parameter and the second communication link.Wherein, communicating link data passes Defeated and speed refers to the message transmission rate of the first communication link and the message transmission rate sum of the second communication link.

Different communication link difference receive the communicating link data transfer rate under signal decoding order can according to The different message transmission rate formula received under signal decoding order are calculated, thus can obtain each pre decoding order accordingly The communicating link data transmission of lower correspondence and speed.

The data corresponding by relatively different pre decodings order are transmitted and speed, can obtain in each pre decoding order be Optimum decoding order, when the data transmission of the most each pre decoding order correspondence and speed maximum, corresponding includes that the first signal is done Disturb than parameter and the parameter value scope of secondary signal interference ratio parameter.Namely tetra-kinds of pre decodings orders of a～d described previously are respectively During for optimum decoding order, calculated first signal-to-noise ratio parameter value scope and secondary signal interference ratio parameter value The parameter value scope that scope is formed, wherein, each pre decoding order at least one parameter value scope corresponding, namely each When pre decoding order is optimum decoding order, join according to calculated first signal-to-noise ratio parameter and secondary signal interference ratio The parameter value of number, can be divided into multiple different span.

It addition, according to practical situations, the message transmission rate of a certain communication link also has certain restriction, the most not Can exceed that the peak transfer rate of requirement, or less than minimum transmission rate.Such as cellular communication typically has higher than D2D communication Priority, therefore D2D communication can not make the speed of cellular communication less than certain value.

Accordingly, as another embodiment, this parameter value scope can be according to peak transfer rate, or minimum transfer The bitrate constraints that speed obtains, it is thus achieved that when different pre decodings orders be optimum decoding order, dry including the first signal Disturb than parameter and the parameter value scope of secondary signal interference ratio parameter.

Wherein, this bitrate constraints can be: the first communication link and the message transmission rate of the second communication link It is all higher than equal to zero, and less than or equal to peak transfer rate.

In actual applications, in order to ensure the communication quality of a certain communication link, such as, the first communication link is ensured Communication quality, this bitrate constraints can be: the message transmission rate of the first communication link is more than or equal to minimum transmission rate, And less than or equal to peak transfer rate.The message transmission rate of the second communication link is more than or equal to zero and less than or equal to maximum transmitted Speed, this minimum transmission rate is more than or equal to zero.

Step 103: search different parameters span, determine first object signal-to-noise ratio parameter and the second echo signal The target pre decoding order that interference ratio parameter is corresponding.

According to first object signal-to-noise ratio parameter and the second target sir parameter, different parameters can be searched Span, determines which parameter this first object signal-to-noise ratio parameter and the second target sir parameter belong to and take Value scope, this pre decoding order corresponding to parameter value scope is target pre decoding order, namely joins in signal-to-noise ratio Number is optimum pre decoding order when first object signal-to-noise ratio parameter and the second target sir parameter.

Determine that target pre decoding order, the first receiving terminal and the second receiving terminal can be according in this target pre decoding orders The first included communications link signals decoding order and the second communications link signals decoding order are decoded.

Owing to optimum decoding order can ensure that data transmission and speed are maximum, therefore can reduce in two communication links Signal interference, ensure that the message transmission rate of two communication links simultaneously, communication quality can be improved.

Wherein, this first object signal-to-noise ratio parameter and the second target sir parameter can be to lead to according to first Believe that link and the transmitting power of the second communication link and channel gain determine to draw, when two communication links communicate, Owing within a certain period of time, the transmitting power of two communication links and channel gain approximation are constant, therefore can be according to two The transmitting power of communication link and channel gain determine first object signal-to-noise ratio parameter and the second target letter respectively Number interference ratio parameter.

Can certainly calculate according to different restraint conditions, can be discussed in detail in embodiment below.

In the present embodiment, in multiplex communication system resource, coexist in the communication pattern of two communication links, it is first determined Go out to include the first communication link receive signal decoding order and the second communication link receive the multiple pre-of signal decoding order Decoding order, and can get each pre decoding order compared to other pre decodings order for optimum decoding order time parameter take Value scope.According to first object signal-to-noise ratio parameter and the second target sir parameter, it may be determined that go out affiliated parameter Target pre decoding order corresponding to span.This target pre decoding order is i.e. to be first object in signal-to-noise ratio parameter During link when parameter and the second target sir parameter, corresponding optimum pre decoding order, this optimum pre decoding order Ensure that data transmission and speed are maximum, therefore can reduce interference effect, and ensure that the data of two communication links pass simultaneously Defeated speed, improves communication quality.

The communication control method of the embodiment of the present invention can apply the first transmitting terminal at the first communication link, by first Sending end performs, and then will determine that target pre decoding order notice is to other receiving terminals.Can certainly apply in the first communication In first receiving terminal of link.Can be applied in the second transmitting terminal or second receiving terminal of the second communication link, certainly Can also be applied in third party device, this third party device respectively can be with the first transmitting terminal, the second transmitting terminal, the first reception End, the second receiving terminal are in communication with each other.This is not made concrete restriction by the present invention.

Fig. 2 is the flow chart of another embodiment of communication control method of the present invention a kind of multiplex communication system resource, should Method can include following step:

Step 201: determine the first communication link and the second communication link corresponding different pre decodings order.

Wherein, what each pre decoding order included the first communication link receives signal decoding order and the second communication link Receive signal decoding order；

Step 202: calculate each pre decoding order and include the first signal-to-noise ratio ginseng for corresponding during optimum decoding order Number and the parameter value scope of secondary signal interference ratio parameter.

Wherein, described optimum decoding order is for making communicating link data transmission and speed maximum in different pre decoding orders Pre decoding order, described signal-to-noise ratio parameter represent purpose signal transmission power and interference signal transmission power ratio close System.

As another embodiment, parameter value scope can be according to bitrate constraints, obtain at different pre decodings When order is optimum decoding order, the first signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

The operation of step 201～step 202 is similar to the operation of step 101 in above-described embodiment～step 102, at this not Repeat again.

Step 203: according to the first signal transmission power and the secondary signal of the second communication link of the first communication link Launch the default constraints of power, from different parameter value scopes, determine first object signal-to-noise ratio parameter and the Two target sir parameters.

In the present embodiment, this first object signal-to-noise ratio parameter and the second target sir parameter are according to communication chain The default constraints of the signal transmission power in road calculates.

This default constraints may refer to the first signal transmission power and secondary signal is launched power and be ensure that equipment Low in energy consumption, or ensure that data are transmitted and that speed is maximum constraints.

By this default constraints, can determine from different parameters span and meet this default constraints One signal-to-noise ratio parameter and secondary signal interference ratio parameter, believe as first object signal-to-noise ratio parameter and the second target Number interference ratio parameter.

Step 204: determine that described first object signal-to-noise ratio parameter is corresponding with the second target sir parameter Target pre decoding order and the first signal transmission power and secondary signal launch the power allocation information of power.

Determine first object signal-to-noise ratio parameter and the second Target Link parameter, i.e. can find accordingly this Parameter value scope residing for one target sir parameter and the second Target Link parameter, corresponding to this parameter value scope Decoding order be target decoder order.This target decoder order is to can ensure that, under certain power distributes, data are transmitted The pre decoding order maximum with speed.

Owing to signal-to-noise ratio parameter represents purpose signal transmission power and the ratio relation of interference signal transmission power, because of This can obtain the first signal accordingly send out according to this first object signal-to-noise ratio parameter or the second target sir parameter Penetrate power and the power allocation information of secondary signal transmitting power.

Determine target pre decoding order, and after power allocation information, the transmitting terminal of the first communication link and second The transmitting terminal of communication link i.e. can send signal according to this power allocation information.Receiving terminal can solve in advance according to this target simultaneously Code order carries out signal decoding, and the first receiving terminal of the i.e. first communication link can include according to this target pre decoding order The signal decoding order of the first communication link carries out signal decoding, and the second receiving terminal of the second communication link can be according to this target The signal pre decoding order of the second communication link that pre decoding order includes carries out signal decoding.

In the present embodiment, in multiplex communication system resource, coexist in the communication pattern of two communication links, it is first determined Go out to include multiple pre decodings order of the signal decoding order of the first communication link and the signal decoding order of the second communication link, And can get the parameter value scope when each pre decoding order is sequentially optimum decoding order compared to other pre decodings.And Presetting about of power is launched in conjunction with the first signal transmission power of the first communication link and the secondary signal of the second communication link Bundle condition, obtains first object signal-to-noise ratio parameter and the second target sir parameter from parameter value scope. This first object signal-to-noise ratio parameter and the second target sir parameter are both to have met power constraints and optimum The parameter that decoding order is corresponding.Thus can according to this first object signal-to-noise ratio parameter and the second target sir parameter To obtain target pre decoding order and power allocation information.The present embodiment is examined by being combined with power distribution by decoding order Consider so that target pre decoding order and power allocation information according to obtaining communicate the shadow controlling to reduce interference Ring, improve communication quality, and be ensure that the message transmission rate of two communication links by power constraints.

In the embodiment of the present invention, this communication control method can apply the first transmitting terminal at the first communication link, by One transmitting terminal performs, and then the target pre decoding determined order and power allocation information is notified to other transmitting terminals or is connect Receiving end.Can certainly apply in the first receiving terminal of the first communication link；Can be applied in the second communication link The second transmitting terminal or the second receiving terminal in；It is, of course, also possible to apply in third party device, by third party device by target Pre decoding order and power allocation information are sent to the receiving terminal in the first communication link and the second communication link and send out This is not made concrete restriction by sending end, the present invention.

When technical solution of the present invention is applied to the first transmitting terminal, the most described method can also include:

Described target decoder order is respectively supplied to the first receiving terminal and the second receiving terminal by the first transmitting terminal, and according to institute State transmitting power emission the first signal determined by power allocation information；

Described power allocation information is supplied to the second transmitting terminal by the first transmitting terminal, triggers described second transmitting terminal according to institute State transmitting power emission secondary signal determined by power allocation information.

When technical solution of the present invention is applied to the first receiving terminal, the most described method can also include:

Described power allocation information is respectively supplied to the first transmitting terminal and the second transmitting terminal by the first receiving terminal, triggers first Transmitting terminal and the second transmitting terminal send signal according to this power information respectively；

Described target decoder is sequentially presented to the second receiving terminal by the first receiving terminal, triggers the second receiving terminal according to this target The decoding order docking collection of letters number is decoded；

The signal received is decoded by the first receiving terminal according to this target decoder order.

Certainly technical scheme can also be respectively applied to the first transmitting terminal and the second transmitting terminal, or first connects In receiving end and the second receiving terminal, can perform to determine target decoder order and the operation of power allocation information simultaneously, with according to really Fixed target decoder order or power allocation information perform Control on Communication.

Fig. 3 is the flow chart of another embodiment of communication control method of the present invention a kind of multiplex communication system resource, should Method can include following step:

Step 301: determine the first communication link and the second communication link corresponding different pre decodings order, each pre decoding Order includes reception signal decoding order and the reception signal decoding order of the second communication link of the first communication link.

Step 302: calculate each pre decoding order and include the first signal-to-noise ratio ginseng for corresponding during optimum decoding order Number and the parameter value scope of secondary signal interference ratio parameter.

Described optimum decoding order is to make communicating link data transmission and maximum pre-of speed in different pre decoding order Decoding order.Described signal-to-noise ratio parameter represents purpose signal transmission power and the ratio relation of interference signal transmission power.

As another embodiment, parameter value scope can be according to bitrate constraints, obtain at different pre decodings When order is optimum decoding order, the first signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter, Now in parameter value scope the parameter value scope of the first signal-to-noise ratio parameter and secondary signal interference ratio parameter also with Big transfer rate or minimum transmission rate are relevant.

The operation of step 301～step 302 is similar to the operation of step 101 in above-described embodiment～step 102, at this not Repeat again.

Step 303: according to the first signal transmission power and secondary signal launch the first power limited scope of power with And first signal-to-noise ratio parameter and the incidence relation of secondary signal interference ratio parameter, determine in different parameters span, full The first preset signals interference ratio parameter and the second corresponding preset signals that this first power limited scope of foot is limited are done Disturb and compare parameter.

Wherein, launch the default constraints of power according to the first signal transmission power and secondary signal, determine difference In parameter value scope, meet the first preset signals interference ratio parameter that this first power limited scope limited and corresponding The operation of the second preset signals interference ratio parameter, in the present embodiment, this default constraints namely include the first power limit Determine scope and according to the first signal transmission power and secondary signal launch the first signal-to-noise ratio parameter determined by power and The incidence relation of secondary signal interference ratio parameter.

In order to guarantee proper communication, and avoid power consumption excessive, need by the first power limited scope signal Transmitting power is defined, infinitely great with the message transmission rate avoiding a communication link, and the number of another communication link According to transfer rate close to zero.

This first power limited scope can include minimum limit value and the KB limit of the first signal transmission power；With And secondary signal launches the minimum limit value of power and KB limit, it may be assumed that

P_{1}^{\min} \leq P_{1} \leq P_{1}^{\max};

P_{2}^{\min} \leq P_{2} \leq P_{2}^{\max} .

Owing to the first signal and secondary signal are to disturb signal each other, therefore the first signal-to-noise ratio parameter represents first Signal transmission power launches the ratio relation of power with secondary signal, and secondary signal interference ratio parameter represents that secondary signal is launched Power and the ratio relation of the first signal transmission power, can obtain the first signal-to-noise ratio parameter and secondary signal the most accordingly The incidence relation of interference ratio parameter.

For example, it is assumed that the first signal-to-noise ratio parameter is expressed asSecondary signal interference ratio parameter is expressed asTherefore the first signal-to-noise ratio parameter and the incidence relation of secondary signal interference ratio parameter can be obtained, i.e.Understanding, the first signal-to-noise ratio parameter only increases with channel with the incidence relation of secondary signal interference parameter Benefit is relevant, in the case of channel gain determines, and this incidence relation namely determine.

According to this first signal-to-noise ratio parameter and the incidence relation of secondary signal interference ratio parameter, it may be determined that go out not In same parameter span, the secondary signal interference ratio parameter that each first signal-to-noise ratio parameter is corresponding.

According to the first power limited scope, first span and second of the first signal-to-noise ratio parameter can be obtained Second span of signal-to-noise ratio parameter, is:

\frac{G_{11^{a}}}{G_{21^{a}}} \min {\frac{p_{1}^{\min}}{p_{2}^{\max}}, \frac{p_{2}^{\min}}{p_{1}^{\max}}} \leq β_{1} \leq \frac{G_{11^{a}}}{G_{21^{a}}} \max {\frac{p_{1}^{\max}}{p_{2}^{\min}}, \frac{p_{2}^{\max}}{p_{1}^{\min}}};

\frac{G_{22^{a}}}{G_{12^{a}}} \min {\frac{p_{1}^{\min}}{p_{2}^{\max}}, \frac{p_{2}^{\min}}{p_{1}^{\max}}} \leq β_{2} \leq \frac{G_{22^{a}}}{G_{12^{a}}} \max {\frac{p_{1}^{\max}}{p_{2}^{\min}}, \frac{p_{2}^{\max}}{p_{1}^{\min}}} .

May thereby determine that out in different parameters span, meet this first span and the second span, with And the first preset signals interference ratio parameter of the incidence relation of this first signal-to-noise ratio parameter and secondary signal interference ratio parameter And the second preset signals interference ratio parameter of correspondence.

Step 304: determine the second preset signals interference ratio that the first different preset signals interference ratio parameters is corresponding Communicating link data transmission corresponding to parameter and speed.

Step 305: be the by maximum communication link data transmission the first preset signals interference ratio parameter corresponding with speed One target sir parameter, the second preset signals interference ratio parameter is the second target sir parameter.

By the first preset signals interference ratio parameter meeting the first power limited range constraint condition obtained by step 303 And the second preset signals interference ratio parameter of correspondence potentially includes multiple.

Therefore by the second preset signals interference ratio parameter to each first preset signals interference ratio parameter and correspondence thereof, Calculate communicating link data transmission and the speed of its correspondence, the first corresponding with speed for calculated maximum preset signals is done Disturb and be second than parameter as first object signal-to-noise ratio parameter, corresponding the second corresponding preset signals interference ratio parameter Target sir parameter.

Wherein, in order to improve search efficiency, this determines in different parameters span, meets this first power limited scope The first preset signals interference ratio parameter and the second corresponding preset signals interference ratio parameter can be specifically:

When each pre decoding order is optimum decoding order, the first signal-to-noise ratio parameter and secondary signal interference ratio ginseng The span of number can be divided into multiple value region, and the most each pre decoding order is i.e. can at least one parameter corresponding Span.Wherein, the division in value region can be according to signal-to-noise ratio parameter and data transmission and the monotonic relationshi of speed Divide.

This parameters span namely refer to all parameter value scopes that different pre decoding order is corresponding.

Data transmission and speed corresponding to the boundary value of parameters span are parameters span Marginal value in corresponding data transmission and speed, i.e. maximum or minima, therefore can be only from parameters span Boundary value in select the first preset signals interference ratio parameter and the second corresponding preset signals interference ratio parameter, and calculate And compare the most corresponding data transmission and speed.Lookup number of times can be reduced, improve and search and computational efficiency.

And the boundary value of this first power limited scope, define the first span of the first signal-to-noise ratio parameter with And the boundary value of the second span of secondary signal interference ratio parameter, owing to the boundary value of the first power limited scope is corresponding Data transmission and speed the first power limited scope corresponding different pieces of information transmission with speed in be maximum or minima, because of This is positioned in arbitrary parameter value scope, and belong to this first span and this second span boundary value first The secondary signal interference ratio parameter of signal-to-noise ratio parameter and correspondence thereof can be respectively as the first preset signals interference ratio parameter With the second preset signals interference ratio parameter.

Step 306: determine residing for described first object signal-to-noise ratio parameter and the second target sir parameter Pre decoding order corresponding to parameter value scope be target pre decoding sequentially.

Step 307: according to first object signal-to-noise ratio parameter or the second target sir parameter, obtain the first letter Number launch power and secondary signal and launch the power allocation information of power.

Can determine that it is positioned at according to this first object signal-to-noise ratio parameter or the second target sir parameter In the range of which parameter value, this pre decoding order corresponding to parameter value scope is target pre decoding order.

According to the relation of signal-to-noise ratio parameter Yu signal transmission power, power allocation information can be obtained, it may be assumed that

\frac{P_{1}}{P_{2}} = \frac{G_{21^{a}}}{G_{11^{a}}} β_{1}^{a} = \frac{G_{22^{a}}}{G_{12^{a}}} \frac{1}{β_{2}^{a}};

Wherein,Represent first object signal-to-noise ratio parameter,Represent the second target sir parameter.

Meet this power allocation information and the first signal transmission power of power limited scope and secondary signal launches merit Rate is echo signal and launches power.

In the present embodiment, according to power limited scope and the first signal-to-noise ratio parameter and of signal transmission power The incidence relation of binary signal interference ratio parameter, can meet this constraints from obtained different parameters span First preset signals interference ratio parameter and the second preset signals interference ratio parameter, select communicating link data and the speed of correspondence then The first preset signals interference ratio parameter that rate is maximum and the second preset signals interference ratio parameter as target sir parameter, Such that it is able to obtain target pre decoding order and power allocation information.This target pre decoding order and power allocation information can be On the premise of reducing interference, it is ensured that the message transmission rate of both links, improve communication quality.

Fig. 4 is the flow chart of another embodiment of communication control method of the present invention a kind of multiplex communication system resource, should Method can include following step:

Step 401: determine the first communication link and the second communication link corresponding different pre decodings order, each pre decoding Order includes reception signal decoding order and the reception signal decoding order of the second communication link of the first communication link.

Step 402: calculate each pre decoding order and include the first signal-to-noise ratio ginseng for corresponding during optimum decoding order Number and the parameter value scope of secondary signal interference ratio parameter.

Described optimum decoding order is to make communicating link data transmission and maximum pre-of speed in different pre decoding order Decoding order.

As another embodiment, this parameter value scope can be according to bitrate constraints, and obtain solves in advance in difference When code order is optimum decoding order, the first signal-to-noise ratio parameter and the parameter value model of secondary signal interference ratio parameter Enclose.

The operation of step 401～step 402 is similar to the operation of step 101 in above-described embodiment～step 102, at this not Repeat again.

Step 403: launch the second power limited scope of power according to the first signal transmission power and secondary signal, really Determine in different parameters span, minimum equipment power dissipation corresponding and meet described second power limited scope and and speed limit The first signal-to-noise ratio parameter that condition processed is limited and secondary signal interference ratio parameter, do respectively as first object signal Disturb than parameter and the second target sir parameter.

Equipment and power consumption refer to the power consumption sum of the first transmitting terminal and the second transmitting terminal, and it is relevant with signal transmission power, Significance level to different communication link in applying according to reality, should and power consumption generally represent with weighted type, it may be assumed that (1-α) P₁+ αP₂, α span is usually 0～1.

Wherein, in applying according to reality, different communication link is launched requirement and the equipment power dissipation requirement of power, need Signal transmission power is defined.This second power limited scope may is that the first signal transmission power is more than or equal to Its minimum limit value, secondary signal launches power more than or equal to its minimum limit value.

In order to ensure the transmission of certain data and speed, reduce the impact of interference, determined by first object signal disturbing Need to meet and bitrate constraints than parameter and the second target sir parameter, can should be with bitrate constraints With speed more than preset value, this preset value can be determined according to actual requirement.

Wherein it is determined that in different parameters span, minimum equipment power dissipation corresponding and meet described second power limited Scope and and the first signal-to-noise ratio parameter of being limited of bitrate constraints and secondary signal interference ratio parameter, can use Various ways realizes, and a kind of possible implementation is:

First, determine that the first signal transmission power and secondary signal are launched power and be respectively during minimum limit value corresponding the One limits signal-to-noise ratio parameter and second limits signal-to-noise ratio parameter.

I.e. determine that the first restriction signal-to-noise ratio parameter and second corresponding time equipment power dissipation is minimum limits signal and does Disturb ratio parameter, i.e.

β_{1}^{*} = \frac{G_{11^{a}} P_{1}^{\min}}{G_{21^{a}} P_{2}^{\min}};

β_{2}^{*} = \frac{G_{22^{a}} P_{2}^{\min}}{G_{12^{a}} P_{1}^{\min}} .

Secondly, determine in different parameters span, limit signal-to-noise ratio parameter and described the closest to described first Two limit signal-to-noise ratio parameters, and meet described second power limited scope and and bitrate constraints the first signal do Disturb ratio parameter and secondary signal interference ratio parameter, do respectively as first object signal-to-noise ratio parameter and the second echo signal Disturb and compare parameter.

Wherein it is determined that in different parameters span, limit signal-to-noise ratio parameter and described the closest to described first Two limit signal-to-noise ratio parameters, and meet described second power limited scope and and bitrate constraints limited first Signal-to-noise ratio parameter and secondary signal interference ratio parameter, can use different lookup algorithm to perform.

In order to improve search efficiency, can first calculate and limit closest to this first restriction signal-to-noise ratio parameter and second First preset signals interference ratio parameter of signal-to-noise ratio parameter and the second preset signals interference ratio parameter, corresponding communication link Whether data transmission and speed meet and bitrate constraints, if meeting, then its be first object signal-to-noise ratio parameter and Second target sir parameter, if being unsatisfactory for, then search do not include it has been determined that be unsatisfactory for and bitrate constraints In the signal-to-noise ratio parameter of signal-to-noise ratio parameter, limit signal closest to this first restriction signal-to-noise ratio parameter and second First preset signals interference ratio parameter of interference ratio parameter and the second preset signals interference ratio parameter, it may be judged whether meet and speed Restrictive condition, the rest may be inferred, meets and the target sir parameter of bitrate constraints, this echo signal until finding Interference ratio parameter namely all signal-to-noise ratio parameters met with bitrate constraints limit signal disturbing closest to first The parameter of signal-to-noise ratio parameter is limited than parameter and second.

Step 404: determine residing for described first object signal-to-noise ratio parameter and the second target sir parameter Pre decoding order corresponding to parameter value scope be target pre decoding sequentially.

Can determine that it is positioned at according to this first object signal-to-noise ratio parameter and the second target sir parameter In the range of which parameter value, this pre decoding order corresponding to parameter value scope is target pre decoding order.

Step 405: according to described first object signal-to-noise ratio parameter and the first size limiting signal-to-noise ratio parameter, Determine that the minimum limit power of the first signal transmission power is the irreducible minimum that the first distribution power or secondary signal launch power Power processed is the second distribution power.

Step 406: the first distribution power determined by according to, calculates the second distribution power, or according to the second distribution power, Calculate the first distribution power.

First distribution power is the transmitting power distributed by the first transmitting terminal, and the second distribution power is for the second transmitting terminal The transmitting power distributed.

Less in order to ensure equipment and power consumption, according to equipment and power consumption expression formula (1-α) P₁+αP₂, it is known that when first When target sir parameter is more than or equal to the first restriction signal-to-noise ratio parameter, equipment and power consumption are along with the first signal disturbing Increase, in this case, in order to ensure that equipment power dissipation is less than being incremented by of parameter, it is determined that secondary signal launches power consumption Little restriction power is the second distribution power of secondary signal, in conjunction with this first object signal-to-noise ratio parameter or the second echo signal Interference ratio parameter, can be calculated the first distribution power of the first signal accordingly；When first object signal-to-noise ratio parameter is little When first limits signal-to-noise ratio parameter, equipment and power consumption reduce, therefore along with being incremented by of the first signal-to-noise ratio parameter In this case, in order to ensure that equipment power dissipation is less, it is determined that it is the first letter that the first signal launches the minimum limit power of power consumption Number first distribution power, in conjunction with this first object signal-to-noise ratio parameter or the second target sir parameter, accordingly may be used To be calculated the second distribution power of secondary signal.

In the present embodiment, according to power limited scope and the first signal-to-noise ratio parameter and of signal transmission power The incidence relation of binary signal interference ratio parameter, can meet this constraints from obtained different parameters span First preset signals interference ratio parameter and the second preset signals interference ratio parameter, select make equipment power dissipation less first then Preset signals interference ratio parameter and the second preset signals interference ratio parameter are as target sir parameter, such that it is able to obtain Target pre decoding order and corresponding power allocation information.This target pre decoding order and power allocation information can be done reducing On the premise of disturbing, it is ensured that the message transmission rate of both links, improve communication quality, and reduce equipment power dissipation.

The embodiment of the present invention is primarily adapted for use in Gaussian noise power receiving power and disturbing signal less than purpose signal Receive power, when Gaussian noise power is less than the reception power of purpose signal and interference signal, can be each pre-by calculating Decoding order is corresponding when being optimum decoding order includes the first signal-to-noise ratio parameter and the ginseng of secondary signal interference ratio parameter Number span, and according to determining first object signal-to-noise ratio parameter and the second target sir parameter, search difference ginseng Number span, determines the target pre decoding order of correspondence.

When Gaussian noise power is more than the reception power of purpose signal and interference signal, it is determined that different pre decoding orders In optimum pre decoding order be target pre decoding order, namely data transmission that relatively different pre decodings order is corresponding and fast Rate, using pre decoding order maximum to data transmission and speed as target pre decoding order.In actual applications, this target solves in advance Code order is also: the first receiving terminal and the second receiving terminal the most directly demodulate purpose signal, and the i.e. first receiving terminal is from receiving signal In direct demodulation the first signal, the second receiving terminal directly demodulates secondary signal from receiving signal, thus can avoid directly decoding Interference signal produces bigger interference information.

The actual application of of the present invention is the Control on Communication being applied to D2D communication system multiplexing cellular communication systems In scheme, as it is shown in figure 5, the communication pattern schematic diagram coexisted for D2D communication link and cellular communication link, first terminal 501 And being cellular communication link between base station 502, the second terminal 503 constitutes D2D communication link with third terminal 504.With up letter As a example by road sending mode, first terminal is the transmitting terminal in cellular communication link, and base station is receiving terminal；Second terminal is that D2D is Transmitting terminal in communication link, third terminal is transmitting terminal.

Therefore for base station and third terminal, its signal received can be expressed as:

Y_B=H_CBX_C+H_DBX_D+N_B；

Y_D=H_DDX_D+H_CDX_C+N_D;

Wherein, Y_BRepresent the signal that base station receives, Y_DRepresent the signal that D2D equipment third terminal receives.X_CRepresent honeybee The first signal that first terminal in nest communication system sends, X_DRepresent the second letter that in D2D communication system, the second terminal sends Number；N_B, N_DRepresent base station and the white Gaussian noise of D2D equipment receiving terminal respectively；H_CBRepresent the chain between first terminal and base station Path channels, H_DBRepresent the link channel between the second terminal and base station, H_DDRepresent the link between the second terminal and third terminal Channel, H_CDRepresent the link channel between first terminal and third terminal.

It should be noted that the present embodiment is the introduction carried out Control on Communication as a example by the signal of up channel, not The signal of down channel can be present disclosure applies equally to as limiting the scope of the present invention.

Due to the existence of interference, particularly at NOS(Non-Orthogonal Sharing mode, nonopiate shared mould Formula) in, in order to improve resource utilization, cellular communication link and D2D communication link take identical resource, including the time, frequently Rate and space resources etc., understand in conjunction with Fig. 5, signal X_CIt is purpose signal relative to base station, is relative to third terminal dry Disturb signal, signal X_DIt is purpose signal relative to third terminal, is interference signal relative to base station.

Below as a example by D2D communication system multiplexing cellular communication system resource, technical scheme is discussed in detail, Fig. 6 shows the flow chart of another embodiment of communication control method of a kind of multiplex communication system resource of the present invention, permissible Including following step:

Step 601: determine the different pre decodings order that D2D communication link is corresponding with cellular communication link.

Each pre decoding order includes the reception letter receiving signal decoding order and cellular communication link of D2D communication link Number decoding order.

Step 602: determine for corresponding during optimum decoding order, each pre decoding order includes that D2D communications link signals is done Disturb than parameter and the parameter value scope of cellular communication link signal-to-noise ratio parameter.

Wherein, signal decoding order is different, and corresponding communicating link data transfer rate is the most different, at different pre decodings Under Shun Xu, different communication link data transfer speed can be calculated according to below equation respectively；

A: base station and third terminal the most directly demodulate purpose signal.

R_{a}^{B} = \frac{1}{2} \log (1 + \frac{G_{CB} P_{C}}{G_{DB} P_{C} + P_{N_{B}}});

R_{a}^{D} = \frac{1}{2} \log (1 + \frac{G_{DD} P_{D}}{G_{CD} P_{C} + P_{N_{D}}});

R_{a} = R_{a}^{B} + R_{a}^{D} .

Wherein, in the case of pre decoding order is a,For the message transmission rate of cellular communication link,For The message transmission rate of D2D communication link.R_aFor communicating link data transmission and speed.P_CRepresent the letter in cellular communication link Number launch power, P_DRepresent the signal transmission power in D2D communication link.G_CBRepresent the letter of link between base station and first terminal Road gain, G_DBRepresent the channel gain of link, G between base station and the second terminal_DDRepresent chain between third terminal and the second terminal The channel gain on road, G_CDRepresent the channel gain of link between third terminal and first terminal.

B: base station directly demodulates purpose signal；Third terminal first demodulates interference signal, and signal will be disturbed from receiving signal After isolating, re-demodulation purpose signal.

R_{b}^{B} = \frac{1}{2} \log (1 + \frac{G_{CB} P_{C}}{G_{DB} P_{C} + P_{N_{B}}});

R_{b}^{D} = \frac{1}{2} \log (1 + \min {\frac{G_{DB} P_{D}}{G_{CB} P_{C} + P_{N_{B}}}, \frac{G_{DD} P_{D}}{G_{CD} P_{C} + P_{N_{D}}}});

R_{b} = R_{b}^{B} + R_{b}^{D} .

Wherein, in the case of pre decoding order is b,For the message transmission rate of cellular communication link,For The message transmission rate of D2D communication link.R_bFor communicating link data transmission and speed.

C: third terminal directly demodulates purpose signal；Base station first demodulates interference signal, and signal will be disturbed from receiving signal After isolating, re-demodulation purpose signal.

R_{c}^{B} = \frac{1}{2} \log (1 + \min {\frac{G_{CB} P_{C}}{G_{DB} P_{D} + P_{N_{B}}}, \frac{G_{CD} P_{C}}{G_{DD} P_{C} + P_{N_{D}}}});

R_{c}^{D} = \frac{1}{2} \log (1 + \frac{G_{DD} P_{D}}{G_{CD} P_{C} + P_{N_{D}}});

R_{c} = R_{c}^{B} + R_{c}^{D} .

Wherein, in the case of pre decoding order is c,For the message transmission rate of cellular communication link,For D2D The message transmission rate of communication link.R_cFor communicating link data transmission and speed.

D: base station first demodulates interference signal, after interference signal is isolated from reception signal, and re-demodulation purpose signal；The Three terminals first demodulate interference signal, after interference signal is isolated from reception signal, and re-demodulation purpose signal.

R_{d}^{B} = \frac{1}{2} \log (1 + \min {\frac{G_{CB} P_{C}}{G_{DB} P_{D} + P_{N_{B}}}, \frac{G_{CD} P_{C}}{G_{DD} P_{D} + P_{N_{D}}}});

R_{d}^{D} = \frac{1}{2} \log (1 + \min {\frac{G_{DB} P_{D}}{G_{CB} P_{C} + P_{N_{B}}}, \frac{G_{DD} P_{D}}{P_{CD} P_{C} + P_{N_{D}}}});

R_{d} = R_{d}^{B} + R_{d}^{D} .

Wherein, in the case of pre decoding order is d,For the message transmission rate of cellular communication link,For The message transmission rate of D2D communication link.R_dFor communicating link data transmission and speed.

Different pre decoding orders, can obtain the communicating link data transfer rate under this pre decoding order, by above-mentioned public affairs Formula describes and understands, and when channel gain may determine that, communicating link data transfer rate is relevant with signal transmission power.

Optimum decoding order refers to compared to other pre decoding orders so that maximum pre-of communicating link data transfer rate Decoding order.Therefore can calculate when each pre decoding order is for optimum decoding order, corresponding includes the first signal Interference ratio parameter and the parameter value scope of secondary signal interference ratio parameter.Wherein the first signal-to-noise ratio parameter and secondary signal Interference ratio parameter is relevant with the ratio of purpose signal transmission power and interference signal transmission power.

This first signal-to-noise ratio parameter represents the power ratio relation of purpose signal power and interference signal, for honeycomb Communication link, the first signal-to-noise ratio parameterThe transmission signal of D2D communication link third terminal is corresponding to base Stand as interference signal, P_DIt is interfering signal power relative to cellular communication link.In like manner, for D2D communication link, the second letter Number interference ratio parameter

When pre decoding order a is optimum decoding order, i.e. R_a≥{R_b, R_c、R_d, a can be obtained accordingly for optimum decoding β time sequentially_B、β_DParameter value scope.Will β_B、β_DSubstitute in above-mentioned rate calculations formula, and compare formula i.e. by this Available β_B、β_DParameter value scope.

When pre decoding order b is optimum decoding order, i.e. R_b≥{R_a, R_c、R_d, b can be obtained accordingly for optimum decoding β time sequentially_B、β_DParameter value scope.

In like manner, when can respectively obtain the most optimum decoding order of c and d, β_B、β_DParameter value scope.

Wherein, according to practical situations, the message transmission rate of communication link also has certain restriction.It is generally not capable of surpassing Cross the peak transfer rate δ required_MC, or less than minimum transmission rate ω_C。

Accordingly, as another embodiment, this parameter value scope can be specifically: combines peak transfer rate δ_MC, or Minimum transmission rate ω_CObtain bitrate constraints, obtain when different pre decodings orders are for optimum decoding order, the first letter Number interference ratio parameter beta_BAnd secondary signal interference ratio parameter beta_DParameter value scope.Now β in this parameter value scope_B、β_D's Value namely and δ_MCOr ω_CRelevant.

Wherein, as a kind of possible situation, this bitrate constraints may is that

0 \leq R_{sum}^{B} \leq δ_{MC};

0 \leq R_{sum}^{D} \leq δ_{MC} .

Represent cellular communication link message transmission rate,Represent the second communicating link data transfer rate, its In, sum is equal to a, b, c or d.

In actual applications, in order to ensure the communication quality of cellular communication link, need to consider minimum transmission power, because of This, as alternatively possible situation, this bitrate constraints can be specifically:

ω_{C} \leq R_{sum}^{B} \leq δ_{MC};

0 \leq R_{sum}^{D} \leq δ_{MC} .

Wherein, during calculating this parameter value scope, different methods can be used to calculate, in order to improve treatability Can, in a kind of possible implementation, according toOrCan be by parameter β in span_B、β_DValue be converted to relevant with δ or ω.Such that it is able to facilitate the inquiry of subsequent parameter and determine.

As shown in table 1 below, for when bitrate constraints being:AndTime, To the β that each decoding order is optimum decoding order_B、β_DSpan, the division of different situations and lookup for convenience, In table 1, by δ_MCBe converted to δ, according to the different spans for δ, following 23 kinds of index situations can have been obtained.

Table 1:

When bitrate constraints is:And 0On the basis of table 1 permissible Continue to obtain such as parameter value scope in the case of the different index of table 2 below division.

It should be noted that the division of different situations is intended merely to facilitate the inquiry of subsequent parameter and really in Tables 1 and 2 Fixed, not there is the meaning of reality, those skilled in the art can certainly carry out other division.Or will table be sympathized with mutually Condition merges, as long as all should belong to the protection model of the present invention according to the parameter value scope obtained by embodiment of the present invention scheme Enclose.

According to the index situation divided in table 1 or table 2, when can obtain each pre decoding order for optimum decoding order, At least one corresponding parameter value scope.

First signal-to-noise ratio parameter beta_BWith secondary signal interference ratio parameter beta_DValue can use right-angle coordinate representation Time, abscissa is β_B, vertical coordinate is β_D, as shown in Fig. 6 a～Fig. 6 b.According to δ_MCAnd ω_CValue, namely according to δ and ω Value, different schematic diagrams can be obtained.

Fig. 6 a is the expression schematic diagram of a kind of parameter value scope of table 1 correspondence, corresponding δ_MC＜ 0.5bps(bits per second), Schematic diagram during i.e. δ ＜ 1, in figure, different value regions denote the index situation of correspondence.

Fig. 6 b is the expression schematic diagram of the another kind of parameter value scope of table 1 correspondence, corresponding δ_MCDuring >=0.5bps, i.e. δ >= 1, time, in figure, different value regions denote the index situation of correspondence, owing to different index situation may corresponding same pre decoding Sequentially, according to Fig. 6 b, index situation corresponding for same pre decoding order can be merged, such that it is able to obtain figure The expression schematic diagram of the parameter value scope of 6c, in figure, corresponding span region denotes the optimum decoding order of correspondence.

Fig. 6 d is the expression schematic diagram combining another parameter value scope corresponding after table 2, corresponding value region in figure Denote the index situation of correspondence.Fig. 6 e is the parameter value scope after index situation is merged by Fig. 6 d and divides schematic diagram.

When not considering minimum transmission rate, obtain is i.e. the parameter value scope of table 1 correspondence.

And when considering minimum transmission rate, obtain is parameter value scope corresponding to Tables 1 and 2, wherein, as δ ＜ 1, or δ >=1, and the ω i.e. ω of ＜ 1(_C＜ 0.5bps) time, the corresponding parameter value scope signal being still shown in Fig. 6 a and 6b Figure, and when δ >=1, and during ω >=1, corresponding is i.e. the parameter value scope schematic diagram shown in Fig. 6 d, can by Fig. 6 b and Fig. 6 d Knowing, Fig. 6 d is that further parameter value scope divides on the basis of Fig. 6 d.

According to the first signal-to-noise ratio parameter in Tables 1 and 2 and the span of secondary signal interference ratio parameter, in conjunction with on State communicating link data transmission and the computing formula of speed, communicating link data transmission in varied situations can be drawn accordingly And speed, specifically can be as shown in Table 3 and Table 4:

Table 3；

Table 4

Communicating link data transmission under different situations shown in table 3 and table 4 and the expression formula of speed, after can being conveniently used for In continuous operating procedure, calculate and compare communicating link data transmission corresponding under unlike signal interference ratio parameter and speed.

Step 603: launch presetting of power and cellular communication link signal transmission power according to D2D communications link signals Constraints, determines first object signal-to-noise ratio parameter and the interference of the second echo signal from different parameter value scopes Compare parameter.

Wherein, as a kind of implementation: this step 603 can be specifically according to cellular communication link signal transmission power And D2D communications link signals launches the first power limited scope of power and the first signal-to-noise ratio parameter and secondary signal The incidence relation of interference ratio parameter, determines in different parameters span, meet that this first power limited scope is limited One preset signals interference ratio parameter and the second corresponding preset signals interference ratio parameter；And preset letter according to different first The transmission of number communicating link data corresponding to the second preset signals interference ratio parameter that interference ratio parameter is corresponding and speed, choosing Selecting the maximum communication link data transmission first preset signals interference ratio parameter corresponding with speed is first object signal-to-noise ratio Parameter, the second preset signals interference ratio parameter is the second target sir parameter.

This first power limited scope includes:

P_{C}^{\min} \leq P_{C} \leq P_{C}^{\max};

P_{D}^{\min} \leq P_{D} \leq P_{D}^{\max};

Represent that peak power limits,Represent that minimum power limits.

By the first power limited scope, the message transmission rate that can avoid a communication link is infinitely great, and another The message transmission rate of communication link is close to zero, it is ensured that two communication links have certain data transmission speed Rate.

The first span and second letter of the first signal-to-noise ratio parameter is may determine that by this power limited scope Second span of number interference ratio parameter, it may be assumed that

\frac{G_{CB}}{G_{DB}} \min {\frac{P_{C}^{\min}}{P_{D}^{\max}}, \frac{P_{D}^{\min}}{P_{C}^{\max}}} \leq β_{B} \leq \frac{G_{CB}}{G_{DB}} \max {\frac{P_{C}^{\max}}{P_{D}^{\min}}, \frac{P_{D}^{\max}}{P_{C}^{\min}}};

\frac{G_{DD}}{G_{CD}} \min {\frac{P_{C}^{\min}}{P_{D}^{\max}}, \frac{P_{D}^{\min}}{P_{C}^{\max}}} \leq β_{D} \leq \frac{G_{DD}}{G_{CD}} \max {\frac{P_{C}^{\max}}{P_{D}^{\min}}, \frac{P_{D}^{\max}}{P_{C}^{\min}}};

According to described previously, the first signal-to-noise ratio parameter and secondary signal interference ratio parameter have a following incidence relation:

β_{B} β_{D} = \frac{G_{CB} G_{DD}}{G_{DB} G_{CD}} = Z_{G} .

From the foregoing, this incidence relation is the most relevant with the channel gain of two communication links, determine at channel gain In the case of, this incidence relation namely determine.Thus can determine that each first signal-to-noise ratio parameter according to this incidence relation Corresponding secondary signal interference ratio parameter.

Therefore this first span and the second span, and this first signal-to-noise ratio parameter and second are combined The incidence relation of signal-to-noise ratio parameter, can determine the first preset signals interference ratio ginseng from different parameters span The second several and corresponding preset signals interference ratio parameter.

According to the principle maximum with speed to improve communicating link data transfer rate, the communication link of maximum can be selected It is first object signal-to-noise ratio parameter that data transmit the first preset signals interference ratio parameter corresponding with speed, and second presets letter Number interference ratio parameter is the second target sir parameter.

Calculating communicating link data transfer rate can be according to the first preset signals interference ratio parameter and the second preset signals The span of interference ratio parameter, according to corresponding calculating with rate equation in table 3 and table 4.

Concrete, can carry out as follows:

According to the first signal-to-noise ratio parameter and the incidence relation of secondary signal interference ratio parameter:And first signal-to-noise ratio parameter the first span and secondary signal interference ratio ginseng Second span of number, can obtain an incidence relation curved section σ, two end points of curved section σ, every end point corresponding 1 the One signal-to-noise ratio parameter and secondary signal interference ratio parameter, be i.e. that the boundary value according to the first power limited scope is limited 's.

When two end points of curved section σ are positioned in arbitrary parameter value scope:

(1) the curvilinear coordinate point that judgment curves section σ represents (is joined by the first signal-to-noise ratio parameter and secondary signal interference ratio Number form becomes) index R{1}R{2} in table 1 ... and whether R{9} exists common factor.

Occur simultaneously if existing, then, from this common factor and in two end points of curved section σ, determine maximum communication link data Transmission and the first object signal-to-noise ratio parameter corresponding to speed and the second directory signal interference ratio parameter.

(2) if (1) does not exist common factor, then the curvilinear coordinate point that judgment curves section σ represents and R in table 1 and table 2 [10}{11}{12} ... and 31}] whether there is common factor.

(3) if (2) exist common factor, including:

A curvilinear coordinate point that () judgment curves section σ represents and R [{ 10}{11}{14}{16}{18}{20}{24}{26} 31}] whether there is common factor.

If there is not common factor in (b) (a), it is judged that whether there is common factor with R [{ 22}{30}].

C () judges curvilinear coordinate point and the R [{ 12}{13}{15}{17}{19}{21}{25} that judgment curves section σ represents 27}{29}] whether there is common factor.

If there is not common factor in (d) (c), it is judged that whether there is common factor with R [{ 23}{28}].

By above-mentioned algorithm, computational efficiency can be improved such that it is able to quickly determine target sir parameter.

As another kind of implementation: this step 603 can be specifically: according to the first signal transmission power and the second letter Number launch the second power limited scope of power, determine in different parameters span, minimum equipment power dissipation corresponding and meet Described second power limited scope and and the first signal-to-noise ratio parameter of bitrate constraints and secondary signal interference ratio Parameter, respectively as first object signal-to-noise ratio parameter and the second target sir parameter.

This second power limited scope is:

P_{C}^{\min} \leq P_{C} \leq + \infty;

P_{D}^{\min} \leq P_{D} \leq + \infty;

Should be with bitrate constraints:

R_sum≥θ_C；

Wherein, θ_CFor preset value.

This equipment and power consumption can be expressed as: (1-α) P_C+αP_D。

This equipment and power consumption can be expressed as the first signal-to-noise ratio parameter beta₁Function, when

β_{1} &Element;

(\frac{G_{CB} P_{C}^{\min}}{G_{DB} P_{D}^{\min}}, + \infty)

Time, equipment and power consumption are β₁Increasing function,

β_{1} &Element; (0, \frac{G_{CB} P_{C}^{\min}}{G_{DB} P_{D}^{\min}})

Time, for β₁Pass Subtraction function, therefore this determines that the first preset signals interference ratio parameter that minimum equipment is corresponding with power consumption is first object signal disturbing Ratio parameter, the second preset signals interference ratio parameter be the second target sir parameter can particularly as follows:

First, determine that the transmitting power launching power and D2D communications link signals of cellular communication link signal is respectively The first restriction signal-to-noise ratio parameter and second corresponding during minimum limit value limits signal-to-noise ratio parameter.

First limits signal-to-noise ratio parameter is expressed as:Second limits signal-to-noise ratio parameter represents For:

β_{2}^{*} = \frac{G_{DD} P_{D}^{\min}}{G_{CD} P_{C}^{\min}} .

Secondly, determine in different parameters span, limit signal-to-noise ratio parameter and described the closest to described first Two limit signal-to-noise ratio parameters, and meet described second power limited scope and and bitrate constraints limited first Signal-to-noise ratio parameter and secondary signal interference ratio parameter, respectively as first object signal-to-noise ratio parameter and the second target Signal-to-noise ratio parameter.

Step 604: determine that described first object signal-to-noise ratio parameter is corresponding with the second target sir parameter Target pre decoding order and cellular communication link signal transmission power and D2D communications link signals are launched the power of power and are divided Join information.

According to the first object signal-to-noise ratio parameter obtained and the second target sir parameter can inquire about table 1 or Table 2, the pre decoding order of its correspondence is target pre decoding order.

And according to first object signal-to-noise ratio parameter and the second target sir parameter, it may be determined that go out two chains The signal transmission power pro rate information on road.

When meet equipment and power consumption less in the case of:

When first object signal-to-noise ratio parameter is positioned atIn the range of time, power allocation information is as follows:

P_{C} = P_{C}^{\min}, P_{D} = \frac{G_{CB} P_{C}}{G_{DB} β_{2}^{a}} = \frac{G_{CD} P_{C} β_{2}^{a}}{G_{DD}};

When first object signal-to-noise ratio parameter is positioned atIn the range of time, power allocation information is such as Under:

P_{D} = P_{D}^{\min}, P_{C} = \frac{G_{DD} P_{D}}{G_{CD} β_{1}^{a}} = \frac{G_{DB} P_{D} β_{1}^{a}}{G_{CB}};

First terminal and the second terminal can launch letter according to signal transmission power determined by this power allocation information Number, the signal received can be decoded by base station and third terminal according to this target pre decoding order, uses the present invention real Execute target pre decoding order determined by example be decoded order and carry out power distribution according to power allocation information, both reduced Interference effect, ensure that the message transmission rate of two communication links simultaneously, and can also reduce equipment power dissipation, thus improve Communication quality.

Additionally, as another embodiment, this first object signal-to-noise ratio parameter and the second target sir parameter Can be the transmitting power according to the first communication link and the second communication link and channel gain determines and draws, two communications When link communicates, owing within a certain period of time, the transmitting power of two communication links and channel gain are constant, because of This can determine first object signal-to-noise ratio parameter respectively according to the transmitting power of two communication links and channel gain And the second target sir parameter.

For aforesaid each method embodiment, in order to be briefly described, therefore it is all expressed as a series of combination of actions, but Being that those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to the present invention, certain A little steps can use other orders or carry out simultaneously.Secondly, those skilled in the art also should know, is retouched in description The embodiment stated belongs to preferred embodiment, necessary to involved action and the module not necessarily present invention.

Fig. 7 is the structural representation of one embodiment of communication control unit of the present invention a kind of multiplex communication system resource, This device may include that

Decoding order acquisition module 701, for determining that the first communication link and corresponding different pre-of the second communication link solve Code order.

Several different situations that pre decoding order includes can be found in described in embodiment of the method part, does not repeats them here.

Parameter value computing module 702, for calculating each pre decoding order for corresponding including during optimum decoding order First signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

For example, it is assumed that P₁It is the first signal transmission power, P₂Power is launched for secondary signal,Represent the first transmitting terminal And the link channel gain that first between receiving terminal,Represent that the link channel between the second transmitting terminal and the first receiving terminal increases Benefit, then the first signal-to-noise ratio parameter i.e. can be expressed asIn the first communication link, P₂It is interference signal Launch power；Secondary signal interference ratio parameter i.e. can be expressed asIn the second communication link, P₁It is dry Disturb signal transmitting power.

Communicating link data transmission and speed may refer to message transmission rate and second communication chain of the first communication link The message transmission rate sum on road.

According to practical situations, the message transmission rate of a certain communication link also has certain restriction.It is generally not capable of surpassing Cross the peak transfer rate required, or typically have higher excellent than D2D communication less than minimum transmission rate, such as cellular communication First level, therefore D2D communication can not make the speed of cellular communication less than certain value.

Accordingly, as another embodiment, this parameter value computing module 702 can be specifically according to peak transfer rate, Or the bitrate constraints of minimum transmission rate, when the different pre decodings obtained order is for optimum decoding order, the first signal Interference ratio parameter and the parameter value scope of secondary signal interference ratio parameter, now in this parameter value scope, the first signal is done Disturb also more relevant with peak transfer rate or minimum transmission rate with the parameter value scope of secondary signal interference ratio parameter than parameter.

Such as, this bitrate constraints may is that the message transmission rate of cellular communication link more than or equal to zero and is less than Equal to peak transfer rate；The message transmission rate of D2D communication link is more than or equal to zero and less than or equal to peak transfer rate.

First controls information determination module 703, for searching the different parameters that described parameter value computing module 702 obtains Span, determines that the described first object signal-to-noise ratio parameter target corresponding with the second target sir parameter solves in advance Code order.

Wherein, this first object signal-to-noise ratio parameter and the second target sir parameter can be to lead to according to first The transmitting power of the second launched signal of transmitting terminal of letter the first transmitting terminal of link and the second communication link determines and draws, the In the case of one target sir parameter and the second target sir parameter determination, it may be determined that go out the decoding of optimum Sequentially, to reduce interference and to ensure that data transmit quantity.

In the present embodiment, in multiplex communication system resource, coexist in the communication pattern of two communication links, it is first determined Go out to include multiple pre decodings order of the signal decoding order of the first communication link and the signal decoding order of the second communication link, And can get the parameter value scope when each pre decoding order is sequentially optimum decoding order compared to other pre decodings.Root According to first object signal-to-noise ratio parameter and the second target sir parameter, it may be determined that go out affiliated parameter value scope institute Corresponding target pre decoding order.This target pre decoding order is i.e. the parameter when signal-to-noise ratio parameter is first object link During with the second target sir parameter, corresponding optimum pre decoding order, this optimum pre decoding order ensure that data Transmission and speed are maximum, therefore can reduce interference effect, and ensure that the message transmission rate of two communication links simultaneously, improve Communication quality.

Fig. 8 is the structural representation of another embodiment of communication control unit of the present invention a kind of multiplex communication system resource Figure, this device may include that

Decoding order acquisition module 801, for determining that the first communication link and corresponding different pre-of the second communication link solve Code order.

Parameter value computing module 802, for calculating each pre decoding order for corresponding including during optimum decoding order First signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

Described optimum decoding order is the pre decoding that in different pre decoding order, communicating link data transmission is maximum with speed Sequentially.

As another embodiment, this parameter value computing module can be specifically according to bitrate constraints, obtain When different pre decoding orders are optimum decoding order, the first signal-to-noise ratio parameter and the parameter of secondary signal interference ratio parameter Span, now the first signal-to-noise ratio parameter and the parameter value model of secondary signal interference ratio parameter in parameter value scope Enclose also relevant with peak transfer rate or minimum transmission rate.

Target component determines module 803, leads to for the first signal transmission power according to the first communication link and second The secondary signal of letter link launches the default constraints of power, determines that first object is believed from different parameter value scopes Number interference ratio parameter and the second target sir parameter.

In the present embodiment, this first object signal-to-noise ratio parameter and the second target sir parameter are according to communication chain Road is preset constraints calculate.

This default constraints may refer to ensure that equipment power dissipation is low, or ensure that data are transmitted and speed Maximum constraints.

Control information determines submodule 804, determines that described first object signal-to-noise ratio parameter and the second echo signal are done Disturb the target pre decoding order more corresponding than parameter and the first signal transmission power and the power distribution of secondary signal transmitting power Information.

In the present embodiment, first control information determination module can specifically include this target component determine module 803 with And control information determines submodule 804.

Determine first object signal-to-noise ratio parameter and the second target sir parameter, i.e. can search accordingly To the parameter value scope residing for this first object signal-to-noise ratio parameter and the second Target Link parameter, this parameter value scope Corresponding decoding order is target decoder order.This target decoder order is so that data transmission and the pre-solution of speed maximum Code order.

Owing to signal-to-noise ratio parameter represents purpose signal transmission power and the ratio relation of interference signal transmission power, because of This can obtain the first signal accordingly send out according to this first object signal-to-noise ratio parameter and the second target sir parameter Penetrating power and the power allocation information of secondary signal transmitting power, such as power sharing ratio, according to this power sharing ratio institute The first signal transmission power determined and secondary signal launch power transmission signal, can improve communication quality, reduce interference.

In the present embodiment, in multiplex communication system resource, coexist in the communication pattern of two communication links, it is first determined Go out to include multiple pre decodings order of the signal decoding order of the first communication link and the signal decoding order of the second communication link, And can get the parameter value scope when each pre decoding order is sequentially optimum decoding order compared to other pre decodings.And Presetting about of power is launched in conjunction with the first signal transmission power of the first communication link and the secondary signal of the second communication link Bundle condition, obtains first object signal-to-noise ratio parameter and the second target sir parameter from parameter value scope. This first object signal-to-noise ratio parameter and the second target sir parameter are both to have met power constraints and optimum The parameter that decoding order is corresponding.Thus can according to this first object signal-to-noise ratio parameter and the second target sir parameter To obtain target pre decoding order and power allocation information.The present embodiment is examined by being combined with power distribution by decoding order Consider so that target pre decoding order and power allocation information according to obtaining communicate the shadow controlling to reduce interference Ring, improve communication quality, and ensure that the message transmission rate of two communication links.

Fig. 9 is the structural representation of another embodiment of communication control unit of a kind of multiplex communication system of the present invention, should Device may include that

Decoding order acquisition module 901, for determining that the first communication link and corresponding different pre-of the second communication link solve Code order.

Each pre decoding order includes reception signal decoding order and the reception of the second communication link of the first communication link Signal decoding order.

Parameter value computing module 902, for calculating each pre decoding order for corresponding including during optimum decoding order First signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

Described optimum decoding order is the pre decoding that in different pre decoding order, communicating link data transmission is maximum with speed Sequentially.Described signal-to-noise ratio parameter represents purpose signal transmission power and the ratio relation of interference signal transmission power.

As another embodiment, this parameter value computing module can be specifically according to bitrate constraints, is calculated When different pre decodings orders be optimum decoding order, the first signal-to-noise ratio parameter and secondary signal interference ratio parameter Parameter value scope, now in parameter value scope, the parameter of the first signal-to-noise ratio parameter and secondary signal interference ratio parameter takes Value scope is also relevant with peak transfer rate or minimum transmission rate.

First parameter determination module 903, for launching the of power according to the first signal transmission power and secondary signal One power limited scope and the first signal-to-noise ratio parameter and the incidence relation of secondary signal interference ratio parameter, determine different ginseng In number spans, meet the first preset signals interference ratio parameter that this first power limited scope limited and corresponding Second preset signals interference ratio parameter.

First signal-to-noise ratio parameter represents the ratio relation of the first signal power and secondary signal power, and secondary signal Interference ratio parameter represents secondary signal power and the ratio relation of the first signal power, can obtain the first signal-to-noise ratio accordingly Parameter and the incidence relation of secondary signal interference ratio parameter, may thereby determine that out in different parameters span, Mei Yi The secondary signal interference ratio parameter that one signal-to-noise ratio parameter is corresponding.

Launch the first power limited scope of power according to the first signal transmission power and secondary signal, first can be obtained First span of signal-to-noise ratio parameter and the second span of secondary signal interference ratio parameter.

Wherein, possible realizing situation as a kind of, this first parameter determination module is specifically for sending out according to the first signal Penetrate power and the first power limited scope of secondary signal transmitting power and the first signal-to-noise ratio parameter and secondary signal The incidence relation of interference ratio parameter, determines in parameters span, meets the boundary value institute of this first power limited scope That limit and in the boundary value of parameters span, meet that this first power limited scope limited first presets letter Number interference ratio parameter and the second corresponding preset signals interference ratio parameter.Such that it is able to raising search efficiency.

Rate calculation module 904, for determining corresponding second pre-of the first different preset signals interference ratio parameters If the communicating link data transmission corresponding to signal-to-noise ratio parameter and speed.

Second parameter determination module 905, for presetting letter by corresponding with speed for the transmission of maximum communication link data first Number interference is made to be first object signal-to-noise ratio parameter than parameter, and the second preset signals interference ratio parameter is as the second echo signal Interference ratio parameter.

In the present embodiment, target component determine module can include this first parameter determination module, rate calculation module with Second parameter determination module.

Decoding order determines module 906, is used for determining described first object signal-to-noise ratio parameter and the second echo signal Pre decoding order corresponding to parameter value scope residing for interference ratio parameter be target pre decoding sequentially；

Power distribution module 907, for joining according to first object signal-to-noise ratio parameter or the second target sir Number, obtains the first signal transmission power and the power allocation information of secondary signal transmitting power.

In the present embodiment, control information determines that submodule i.e. includes that this decoding order determines that module and this power distribute mould Block.

Figure 10 is the structural representation of another embodiment of communication control unit of the present invention a kind of multiplex communication system resource Figure, this device may include that

Decoding order acquisition module 1001, for determining that the first communication link and corresponding different pre-of the second communication link solve Code order, each pre decoding order includes the reception letter receiving signal decoding order and the second communication link of the first communication link Number decoding order.

Parameter value computing module 1002, for calculating each pre decoding order for corresponding including during optimum decoding order First signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter, described optimum decoding order is different pre- The pre decoding order of communicating link data transmission and speed maximum in decoding order.

As another embodiment, this parameter value computing module can be according to bitrate constraints, calculated When different pre decoding orders are optimum decoding order, the first signal-to-noise ratio parameter and the parameter of secondary signal interference ratio parameter Span, now the first signal-to-noise ratio parameter and the parameter value of secondary signal interference ratio parameter in this parameter value scope Scope is also relevant with peak transfer rate or minimum transmission rate.

Target component determines module 1003, for launching the of power according to the first signal transmission power and secondary signal Two power limited scopes, determine in different parameters span, minimum equipment power dissipation corresponding and meet described second power limit Determine scope and the first signal-to-noise ratio parameter limited with bitrate constraints and secondary signal interference ratio parameter, make respectively For first object signal-to-noise ratio parameter and the second target sir parameter.

Wherein, in applying according to reality, different communication link is launched requirement and the equipment power dissipation requirement of power, need Signal transmission power is defined.This second power limited scope may is that the first signal transmission power is more than or equal to Its minimum limit value, this secondary signal launches power more than or equal to its minimum limit value.

In order to ensure the transmission of certain data and speed so that reduce the impact of interference, determined by first object signal Interference ratio parameter and the second target sir parameter need to meet and bitrate constraints, should be with bitrate constraints example As being to be more than preset value with speed, this preset value can be determined according to actual requirement.

Wherein it is determined that in different parameters span, minimum equipment power dissipation corresponding and meet described second power limited Scope and and the first signal-to-noise ratio parameter of being limited of bitrate constraints and secondary signal interference ratio parameter, can adopt Realizing with various ways, in a kind of possible implementation, this target component determines that module 1003 may include that

3rd parameter determination module 1013, is used for determining that the first signal transmission power and secondary signal are launched power and be respectively The first restriction signal-to-noise ratio parameter and second corresponding during minimum limit value limits signal-to-noise ratio parameter.

4th parameter determination module 1023, is used for determining in different parameters span, limits letter closest to described first Number interference ratio parameter and described second limits signal-to-noise ratio parameter, and meets described second power limited scope and and speed The first signal-to-noise ratio parameter that restrictive condition is limited and secondary signal interference ratio parameter, respectively as first object signal Interference ratio parameter and the second target sir parameter.

4th parameter determination module can use different algorithms to realize.

Wherein, in order to improve search efficiency, can first calculate and first limit signal-to-noise ratio parameter and the closest to this Two the first preset signals interference ratio parameter limiting signal-to-noise ratio parameter and the second preset signals interference ratio parameters, corresponding is logical Whether letter link data transfer and speed meet and bitrate constraints, if meeting, then it is first object signal-to-noise ratio Parameter and the second target sir parameter, if being unsatisfactory for, then search do not include it has been determined that be unsatisfactory for and rate limit In the signal-to-noise ratio parameter of the signal-to-noise ratio parameter of condition, closest to this first restriction signal-to-noise ratio parameter and the second limit First preset signals interference ratio parameter of signal-to-noise ratio parameter processed and the second preset signals interference ratio parameter, it may be judged whether meet And bitrate constraints, by that analogy, meet and the target sir parameter of bitrate constraints, this mesh until finding Mark signal-to-noise ratio parameter namely all signal-to-noise ratio parameters met with bitrate constraints limit letter closest to first Number interference ratio parameter and second limits the parameter of signal-to-noise ratio parameter.

Control information determines submodule 1004, is used for determining described first object signal-to-noise ratio parameter and the second target letter Number target pre decoding that interference ratio parameter is corresponding order and the first signal transmission power and secondary signal launch the power of power Distribution information.

The present embodiment this, first control information determination module includes that this target component determines that module and this control information are true Stator modules.

Wherein, this control information determines that submodule can specifically include:

Decoding order determines module 1014, is used for determining described first object signal-to-noise ratio parameter and the second echo signal Pre decoding order corresponding to parameter value scope residing for interference ratio parameter be target pre decoding sequentially；

First power determination module 1024, for limiting signal according to described first object signal-to-noise ratio parameter with first The size of interference ratio parameter, determines that the minimum limit power of the first signal transmission power is the first distribution power or secondary signal The minimum limit power launching power is the second distribution power；

Second power determination module 1034, for the first distribution power determined by basis, calculates the second distribution power, or According to the second distribution power, calculate the first distribution power.

The embodiment of the present invention is primarily adapted for use in when Gaussian noise power is less than purpose signal and the reception merit of interference signal Rate, when Gaussian noise power is less than the reception power of purpose signal and interference signal, can be suitable by calculating each pre decoding Sequence is corresponding when being optimum decoding order includes the first signal-to-noise ratio parameter and the parameter value of secondary signal interference ratio parameter Scope, and according to determining first object signal-to-noise ratio parameter and the second target sir parameter, search different parameters value Scope, determines the target pre decoding order of correspondence.

When Gaussian noise power is more than the reception power of purpose signal and interference signal, it is determined that different pre decoding orders In optimum pre decoding order be target pre decoding order, namely data transmission that relatively different pre decodings order is corresponding and fast Rate, using pre decoding order maximum to data transmission and speed as target pre decoding order, in actual applications, owing to Gauss makes an uproar Sound is also for disturbing signal, and this target pre decoding order is also: the first receiving terminal and the second receiving terminal the most directly demodulate purpose letter Number, the i.e. first receiving terminal is from receiving signal directly demodulation the first signal, and the second receiving terminal directly demodulates the from receiving signal Binary signal, thus can avoid directly decoding interference signal and produce bigger interference information.

Therefore, in communication control unit described in above-described embodiment, this parameter value computing module and first controls information In the case of determining that module all works when being less than purpose signal with Gaussian noise power and disturb the reception power of signal, this ginseng Number exploitation modules can specifically for when Gaussian noise power less than purpose signal and interference signal reception power time, Calculate each pre decoding order and include the first signal-to-noise ratio parameter and secondary signal interference for corresponding during optimum decoding order The ratio parameter value scope of parameter, first controls the ginseng that information determination module can calculate according to this parameter value computing module Number span, determines first object signal-to-noise ratio parameter and the parameter value model at the second target sir parameter place The pre decoding order enclosing correspondence is target pre decoding order.

Then this communication control unit can also include:

In the embodiment of the present invention, this communication control unit can be applied particularly to the first communication link the first transmitting terminal or In person's the first receiving terminal, naturally it is also possible to be applied in the second transmitting terminal or second receiving terminal of the second communication link, also may be used Can set up in the third party device being connected with the transmitting terminal in different communication link and receiving terminal respectively to apply.

When this communication control unit is applied to the first transmitting terminal of the first communication link, this device can also include:

When this communicator is applied to the first receiving terminal of the first communication link, this device can also include:

Information providing module, for described power allocation information being each provided the first transmitting terminal and the second transmitting terminal, Described target decoder is sequentially presented to the second receiving terminal；

Decoder module, for being decoded the signal received according to this target decoder order.

Wherein, this communication control unit can be realized by software or hardware, and when being realized by software mode, it is as logical Letter control program can be stored in device memory, and device handler reads this communication control program and runs, thus realizes Target pre decoding order and the determination of power allocation information.This communication control program can include decoding order acquisition module, Parameter value computing module, target component determine module and control information determination module etc., and concrete function may refer to device Described in embodiment, do not repeat them here.

Therefore present invention also offers a kind of communication control unit, at least include memorizer and processor, memorizer is deposited Storage communication control program, processor runs this communication control program, and this communication control program includes decoding order acquisition module, ginseng Number exploitation module, target component determine module and control information determination module etc..

This communication control unit can be the first transmitting terminal or first receiving terminal of the first communication link, it is also possible to be Second transmitting terminal of two communication links or the second receiving terminal, can also is that third party device certainly.

Use technical solution of the present invention to can ensure that the message transmission rate of two communication links, improve communication quality, or Person can also reduce equipment power dissipation.Technical solution of the present invention can be verified, still with D2D communication system multiplexing by emulation As a example by cellular communication system resource, it is assumed that single radius of society is 300m, as a example by up channel, by base station to cellular communication system The distance of transmitting terminal is set to 150m, and cellular communication system transmitting terminal is evenly distributed in community；Transmission in D2D communication link End and receiving terminal distance are set to 20m；The channel model used is fading channel model, is expressed as

P(d)=cd^-γP_m。

Wherein, P_mSend out power, P(d for initial) be from transmitting terminal distance be signal power during d.C with γ represents respectively Decline constant and decline index parameters.

Set c=1 and γ=4.SetWithValue the signal to noise ratio received at cell edge is divided for-1dB( Shellfish),WithValue make the signal to noise ratio received at cell edge be 0dB.Set peak transfer rate δ_MCFor 2bps, minimum transmission rate ω of cellular communication link_CFor 0.5bps, and speed θ_CMinima be limited to 3.5bps.

Simulation result is as is illustrated by figs. 11 and 12.

Figure 11 is a kind of simulation result schematic diagram of technical solution of the present invention, and abscissa is expressed as communicating link data transmission And speed, vertical coordinate is CDF(Cumulative Distribution Function, cumulative distribution function) value, description be With the probability distribution situation of speed, such as, when in figure, abscissa value is 3, what vertical coordinate was corresponding is i.e. that abscissa value is less than 3 Time probit.

In Figure 11, curve 1101 is for using the CDF distribution curve of the technical scheme shown in Fig. 1, and curve 1102 is for using Fig. 3 The CDF distribution curve of shown technical scheme, curve 1103 is that cellular communication link and D2D communication link are all directly from receiving letter Corresponding CDF distribution curve during number demodulation purpose signal.Curve 1104 is for only considering that power distribution makes and during speed maximum pair The CDF curve answered.

As seen from Figure 11, the technical scheme shown in Fig. 1 or Fig. 3 of the present invention, data transmission and speed is used mainly to collect In at 2.5bps～4bps, or 3.5bps～4bps, it is known that largest data transfer and speed are more than directly demodulating purpose Largest data transfer corresponding during signal and speed and largest data transfer when only considering power distribution and speed.And Fig. 3 Largest data transfer and speed that shown technical scheme is corresponding are maximum.

Figure 12 is the another kind of simulation result schematic diagram of technical solution of the present invention, abscissa represent cellular communication link and The total power consumption of D2D communication link, vertical coordinate is the CDF(Cumulative Distribution Function that total power consumption is corresponding, Cumulative distribution function) value.

In Figure 12, curve 1201 is only to consider in actual application that power consumption distribution makes the CDF curve of power consumption minimum, curve 1202 for using CDF curve corresponding to technical scheme shown in Fig. 4.

As shown in Figure 12, the total power consumption that technical scheme shown in Fig. 4 obtains is less than total work when only considering power distribution Consumption.

In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other The difference of embodiment, between each embodiment, identical similar portion sees mutually.For device disclosed in embodiment For, owing to it corresponds to the method disclosed in Example, so describe is fairly simple, relevant part sees method part and says Bright.

Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention. Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one The widest scope caused.

Claims

1. the communication control method of a multiplex communication system resource, it is characterised in that including:

Determine the first communication link and the second communication link corresponding different pre decodings order, each pre decoding order include first The reception signal decoding order of communication link and the reception signal decoding order of the second communication link；Wherein, described first communication The reception signal receiving signal and described second communication link of link all includes: purpose signal and interference signal；

Calculate each pre decoding order and include the first signal-to-noise ratio parameter and secondary signal for corresponding during optimum decoding order The parameter value scope of interference ratio parameter, described optimum decoding order is for making communicating link data pass in different pre decoding orders Defeated and that speed is maximum pre decoding order；

Search different parameters span, determine first object signal-to-noise ratio parameter and the second target sir parameter pair The target pre decoding order answered, described target pre decoding order is the first signal-to-noise ratio parameter and secondary signal interference ratio parameter It is respectively optimum pre decoding order when first object signal-to-noise ratio parameter and the second target sir parameter.

Method the most according to claim 1, it is characterised in that described calculating each pre decoding order is optimum decoding order Time the corresponding parameter value scope including the first signal-to-noise ratio parameter and secondary signal interference ratio parameter include:

According to the bitrate constraints of communicating link data transfer rate, when calculating each pre decoding order for optimum decoding order Corresponding includes the first signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

Method the most according to claim 1 and 2, it is characterised in that described lookup different parameters span, determines first Target sir parameter corresponding with the second target sir parameter target pre decoding order include:

The first signal transmission power and the secondary signal of the second communication link according to the first communication link launch the pre-of power If constraints, from different parameter value scopes, determine that first object signal-to-noise ratio parameter and the second echo signal are done Disturb and compare parameter；

Determine that the described first object signal-to-noise ratio parameter target pre decoding corresponding with the second target sir parameter is suitable Sequence and the first signal transmission power and secondary signal launch the power allocation information of power.

Method the most according to claim 3, it is characterised in that described the first signal according to the first communication link launches merit The secondary signal of rate and the second communication link launches the default constraints of power, determines from different parameter value scopes Go out first object signal-to-noise ratio parameter and the second target sir parameter include:

Do according to the first signal transmission power and the first power limited scope of secondary signal transmitting power and the first signal Disturb ratio parameter and the incidence relation of secondary signal interference ratio parameter, determine in different parameters span, meet this first power The first preset signals interference ratio parameter that restriction scope is limited and the second corresponding preset signals interference ratio parameter；

Determine corresponding to the second preset signals interference ratio parameter that the first different preset signals interference ratio parameters is corresponding Communicating link data transmission and speed；

Using the first corresponding with speed for the transmission of maximum communication link data preset signals interference ratio parameter as first object signal Interference ratio parameter, the second preset signals interference ratio parameter is as the second target sir parameter.

Method the most according to claim 4, it is characterised in that each pre decoding order at least one parameter value model corresponding Enclose, described determine in different parameters span, meet the first preset signals interference that this first power limited scope is limited Include than parameter and the second corresponding preset signals interference ratio parameter:

Determine in parameters span, meet the boundary value of this first power limited scope is limited and parameters In the boundary value of span, meet the first preset signals interference ratio parameter that this first power limited scope limited and and its The second corresponding preset signals interference ratio parameter.

6. according to the method described in claim 4 or 5, it is characterised in that described determine that described first object signal-to-noise ratio is joined Count the target pre decoding order corresponding with the second target sir parameter and the first signal transmission power and secondary signal The power allocation information launching power includes:

Determine described first object signal-to-noise ratio parameter and the parameter value scope at the second target sir parameter place Corresponding pre decoding order is target pre decoding order；

According to first object signal-to-noise ratio parameter or the second target sir parameter, obtain the first signal transmission power and Secondary signal launches the power allocation information of power.

Launch the second power limited scope of power according to the first signal transmission power and secondary signal, determine that different parameters takes In value scope, minimum equipment power dissipation corresponding and meet described second power limited scope and and bitrate constraints limited The first signal-to-noise ratio parameter and secondary signal interference ratio parameter, respectively as first object signal-to-noise ratio parameter and Two target sir parameters.

Method the most according to claim 7, it is characterised in that described determine in different parameters span, minimum equipment Power consumption corresponding and meet described second power limited scope and and the first signal-to-noise ratio of being limited of bitrate constraints Parameter and secondary signal interference ratio parameter, respectively as first object signal-to-noise ratio parameter and the second target sir Parameter includes:

Determine that the first signal transmission power is launched power and is respectively the first restriction letter corresponding during minimum limit value with secondary signal Number interference ratio parameter and second limits signal-to-noise ratio parameter；

Determine in different parameters span, limit signal-to-noise ratio parameter and described second closest to described first and limit signal Interference ratio parameter, and meet described second power limited scope and the first signal-to-noise ratio limited with bitrate constraints Parameter and secondary signal interference ratio parameter, respectively as first object signal-to-noise ratio parameter and the second target sir Parameter.

9. according to the method described in claim 7 or 8, it is characterised in that described determine that described first object signal-to-noise ratio is joined Count the target pre decoding order corresponding with the second target sir parameter and the first signal transmission power and secondary signal The power allocation information launching power includes:

According to described first object signal-to-noise ratio parameter and the first size limiting signal-to-noise ratio parameter, determine the first signal The minimum limit power that minimum limit power is the first distribution power or secondary signal transmitting power launching power is second Distribution power；

First distribution power determined by according to, calculates the second distribution power, or according to the second distribution power, calculates the first distribution Power.

Method the most according to claim 3, it is characterised in that described determine described first object signal-to-noise ratio parameter The target pre decoding order corresponding with the second target sir parameter and the first signal transmission power and secondary signal are sent out After penetrating the power allocation information of power, described method also includes:

Described target pre decoding order is respectively supplied to the first receiving terminal and the second receiving terminal, and according to described power distribution letter Power emission the first signal is launched determined by breath；

Described power allocation information is supplied to the second transmitting terminal, triggers described second transmitting terminal according to described power allocation information Determined by launch power emission secondary signal.

11. methods according to claim 1 and 2, it is characterised in that described calculating each pre decoding order is optimum decoding The parameter value scope including the first signal-to-noise ratio parameter and secondary signal interference ratio parameter corresponding time sequentially includes:

When Gaussian noise power is less than the reception power of purpose signal and interference signal, calculating each pre decoding order is Corresponding during excellent decoding order include the first signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

12. methods according to claim 11, it is characterised in that described method also includes:

When Gaussian noise power is more than the reception power of purpose signal and interference signal, determine in different pre decoding order Optimum pre decoding order is target pre decoding order.

The communication control unit of 13. 1 kinds of multiplex communication system resources, it is characterised in that including:

Decoding order acquisition module, for determine the first communication link and the second communication link corresponding different pre decodings order, Each pre decoding order includes the reception signal decoding receiving signal decoding order and the second communication link of the first communication link Sequentially；Wherein, the reception signal receiving signal and described second communication link of described first communication link all includes: purpose is believed Number and interference signal；

Parameter value computing module, includes the first signal for calculating each pre decoding order for corresponding during optimum decoding order Interference ratio parameter and the parameter value scope of secondary signal interference ratio parameter, described optimum decoding order is different pre decoding orders In make communicating link data transmission and the maximum pre decoding order of speed；

First controls information determination module, for searching the different parameters span that described parameter value computing module calculates, Determine the target pre decoding order that first object signal-to-noise ratio parameter is corresponding with the second target sir parameter, described mesh Mark pre decoding order is the first signal-to-noise ratio parameter and secondary signal interference ratio parameter is respectively first object signal-to-noise ratio Optimum pre decoding order when parameter and the second target sir parameter.

14. devices according to claim 13, it is characterised in that described parameter value computing module is specifically for according to logical The bitrate constraints of letter link data transfer speed, calculates each pre decoding order for corresponding including during optimum decoding order First signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

15. according to the device described in claim 13 or 14, it is characterised in that described first controls information determination module includes:

Target component determines module, for according to the first signal transmission power of the first communication link and the second communication link Secondary signal launches the default constraints of power, determines first object signal-to-noise ratio from different parameter value scopes Parameter and the second target sir parameter；

Control information determines submodule, is used for determining described first object signal-to-noise ratio parameter and the second target sir Target pre decoding order and the power distribution of the first signal transmission power and secondary signal transmitting power that parameter is corresponding are believed Breath.

16. devices according to claim 15, it is characterised in that described target component determines that module includes:

First parameter determination module, for launching the first power limit of power according to the first signal transmission power and secondary signal Determine scope and the first signal-to-noise ratio parameter and the incidence relation of secondary signal interference ratio parameter, determine different parameters value model In enclosing, meet the first preset signals interference ratio parameter and corresponding second that this first power limited scope limited and preset Signal-to-noise ratio parameter；

Rate calculation module, for determining that corresponding the second preset signals of the first different preset signals interference ratio parameters is done Disturb and transmit and speed than the communicating link data corresponding to parameter；

Second parameter determination module, for making the first corresponding with speed for the transmission of maximum communication link data preset signals interference Than parameter as first object signal-to-noise ratio parameter, the second preset signals interference ratio parameter is as the second target sir Parameter.

17. devices according to claim 16, it is characterised in that described first parameter determination module is specifically for according to One signal transmission power and secondary signal launch the first power limited scope of power and the first signal-to-noise ratio parameter and The incidence relation of secondary signal interference ratio parameter, determines in parameters span, meets this first power limited scope In that boundary value is limited and the boundary value of parameters span, meet that this first power limited scope is limited One preset signals interference ratio parameter and the second corresponding preset signals interference ratio parameter.

18. according to the device described in claim 16 or 17, it is characterised in that described control information determines that submodule includes:

First decoding order determines module, is used for determining described first object signal-to-noise ratio parameter and the interference of the second echo signal The target pre decoding order more corresponding than parameter；

Power distribution determines module, according to first object signal-to-noise ratio parameter or the second target sir parameter, obtains First signal transmission power and secondary signal launch the power allocation information of power.

19. devices according to claim 15, it is characterised in that described target component determines that module is specifically for according to One signal transmission power and secondary signal launch the second power limited scope of power, determine in different parameters span, Minimum equipment power dissipation corresponding and meet described second power limited scope and and the first letter of being limited of bitrate constraints Number interference ratio parameter and secondary signal interference ratio parameter, believe respectively as first object signal-to-noise ratio parameter and the second target Number interference ratio parameter.

20. devices according to claim 19, it is characterised in that described target component determines that module includes:

3rd parameter determination module, is used for determining that the first signal transmission power and secondary signal are launched power and be respectively minimum limit The first restriction signal-to-noise ratio parameter and second corresponding during value limits signal-to-noise ratio parameter；

4th parameter determination module, is used for determining in described parameter value scope, limits signal-to-noise ratio closest to described first Parameter and described second limits signal-to-noise ratio parameter, and meets described second power limited scope and and bitrate constraints The the first signal-to-noise ratio parameter limited and secondary signal interference ratio parameter, join respectively as first object signal-to-noise ratio Number and the second target sir parameter.

21. according to the device described in claim 19 or 20, it is characterised in that described control information determines that submodule includes:

Decoding order determines module, is used for determining described first object signal-to-noise ratio parameter and the second target sir ginseng Pre decoding order corresponding to parameter value scope residing for number be target pre decoding sequentially；

First power determination module, for limiting signal-to-noise ratio ginseng according to described first object signal-to-noise ratio parameter with first The size of number, determines that the minimum limit power of the first signal transmission power is the first distribution power or secondary signal transmitting power Minimum limit power be the second distribution power；

Second power determination module, for the first distribution power determined by basis, calculates the second distribution power, or according to second Distribution power, calculates the first distribution power.

22. devices according to claim 15, it is characterised in that also include:

Information providing module, for described target pre decoding order is respectively supplied to the first receiving terminal and the second receiving terminal, will Described power allocation information is supplied to the second transmitting terminal, triggers described second transmitting terminal and is determined according to described power allocation information Transmitting power emission secondary signal；

23. according to the device described in claim 13 or 14, it is characterised in that described parameter value computing module is specifically for working as When Gaussian noise power is less than the reception power of purpose signal and interference signal, calculates each pre decoding order and decode for optimum Corresponding time sequentially include the first signal-to-noise ratio parameter and the parameter value scope of secondary signal interference ratio parameter.

24. devices according to claim 23, it is characterised in that also include:

Second controls information determination module, for when Gaussian noise power is more than purpose signal and the reception power of interference signal Time, determine that the optimum pre decoding order in different pre decoding order is target pre decoding order.