CN104010275B - resource allocation and broadcast communication method and device, base station and terminal - Google Patents

resource allocation and broadcast communication method and device, base station and terminal Download PDF

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Publication number
CN104010275B
CN104010275B CN201410253415.XA CN201410253415A CN104010275B CN 104010275 B CN104010275 B CN 104010275B CN 201410253415 A CN201410253415 A CN 201410253415A CN 104010275 B CN104010275 B CN 104010275B
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resource
broadcast communication
terminal
running time
frequency resource
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CN104010275A (en
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曹卿
曹一卿
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Abstract

The invention provides a kind of resource allocation methods for broadcast communication between terminal and distributor and base station, and the method, apparatus and terminal of broadcast communication, wherein, the resource allocation methods, including:The channel measurement information reported according to the service condition of the running time-frequency resource in cell and terminal, to terminal distribution running time-frequency resource;Modulating-coding grade of the setting terminal when transmitting broadcast communication data and the quantity to terminal distribution resource block;Quantity to the resource block of the running time-frequency resource of terminal distribution, the modulating-coding grade of setting and distribution is sent to terminal, coding is modulated for terminal-pair broadcast communication data to be sent, and makes broadcast communication data of the terminal after running time-frequency resource uploads warp let-off ovennodulation coding.Technical scheme can be reasonably to terminal distribution resource, it is ensured that broadcast communication data takes an appropriate number of data block in transmission, improves the efficiency of broadcast communication data transmission, while can improve the communication quality of terminal.

Description

Resource allocation and broadcast communication method and device, base station and terminal
Technical field
The present invention relates to communication technical field, in particular to a kind of resource for broadcast communication between terminal point Method of completing the square, a kind of resource allocation device of broadcast communication, a kind of base station, a kind of method of broadcast communication, one between being used for terminal The device of kind broadcast communication and a kind of terminal.
Background technology
The direct-connected communication (Device to Device, D2D) of existing terminal can allow terminal not by forwarded and Directly it is in communication with each other, saves substantial amounts of mobile network's interface-free resources so that network capacity is substantially improved, meanwhile, terminal is direct-connected The robustness of communication is also more more excellent than existing mobile communication, especially the area after disaster generation or without mobile network's covering Domain.
The main operation modes of the direct-connected communication of terminal include point-to-point communication and broadcast communication, wherein, point-to-point communication with Conventional cellular communication is similar, can be according to the channel condition dynamic adjustment MCS (Modulation between transmission, receiving node And Coding Scheme, modulation and coding strategy) grade, it is allowed to be adapted with received signal to noise ratio, increase as far as possible is handled up Amount.
At present in 3GPP research topic based on the broadcast communication for public safety.There is a hair in broadcast communication Send node and some receiving nodes, signal may pass through repeatedly forwarding in communication process.Due to the receiving node of broadcast communication It is more, and the channel of each receiving node to sending node is separate, cause it is difficult to which picture point point to-point communication is the same is become according to channel Change dynamic adjustment MCS grades, therefore, the MCS grades that broadcast communication services generally use is fixed are sent.And in order to ensure channel most The node of difference can also have successfully received the signal of broadcast node transmission, and broadcast communication would generally select more reliable MCS grades, Such as QPSK+1/3 encoding rates, but it is less efficient.
In addition, current broadcast communication has two spike-type cultivars allocation model:Pattern 1:D2D is directly dispatched by network (base station) UE (User Equipment, user equipment) communications resource;Pattern 2:D2D UE it is autonomous in default resource pool Select communications resource.
In order to reduce the influence to LTE network, and ensure the reliability of transmission, for the D2D UE under the network coverage, lead to The mode (pattern 1) of resource, or specified resource pool are directly distributed frequently with base station, selects the mode of resource wherein by terminal (pattern 2).And for the D2DUE outside the network coverage, due to no base station, generally use UE is independently selected in resource pool is specified The mode (pattern 2) of resource is communicated.
Process chart of the information source before communication information is sent as shown in figure 1, including:Step 102, information source generation is pending The data sent;Step 104, it is modulated, is encoded according to the MCS grades of setting;Step 106, rate-matched is carried out, is treated with being formed The data frame of transmission.Wherein, the rate-matched in step 106 is typically to delete partial data, to obtain the data for being adapted to transmission Block size.However, D2D broadcasting services design for public safety, and it is higher for reliability requirement, deletion portion should not be used The method of divided data carries out rate-matched.But if resource or UE are blindly distributed in base station to UE is blindly independently specifying money Resource is selected in the pond of source, then is likely to appear in modulation, the size of data that coding is formed afterwards is not suitable for integer number of data blocks and passed It is defeated, and the situation that the part that has more integer number of data blocks is seldom, delete the side of partial data because D2D broadcasting services should not be taken Formula carries out rate-matched, it is thus possible to needs to add substantial amounts of " 0 " after the data division having more with last data that gather together enough Block, this is a kind of waste to data block, adds communications cost.
Therefore, how reasonably to terminal distribution resource, it is ensured that broadcast communication data takes an appropriate number of in transmission Data block, turn into technical problem urgently to be resolved hurrily to improve the efficiency of broadcast communication data transmission.
The content of the invention
The present invention is based on above-mentioned technical problem, it is proposed that a kind of new resource for broadcast communication between terminal point , can be reasonably to terminal distribution resource with scheme, it is ensured that broadcast communication data takes an appropriate number of data block in transmission, The efficiency of broadcast communication data transmission is improved, while the communication quality of terminal can be improved.
In view of this, the present invention proposes a kind of resource allocation methods for broadcast communication between terminal, including:Connecing When receiving the broadcast communication resource dispatch request of terminal transmission, according to the service condition of the running time-frequency resource in cell and the terminal The channel measurement information reported, to the terminal distribution running time-frequency resource;According to the running time-frequency resource to the terminal distribution, institute is set State modulating-coding grade of the terminal when transmitting broadcast communication data and the quantity to the terminal distribution resource block;Will be to described The quantity of the resource block of the running time-frequency resource of terminal distribution, the modulating-coding grade of setting and distribution was sent to the end End, so that the terminal is entered according to the quantity of the modulating-coding grade and the resource block to broadcast communication data to be sent Row modulating-coding, and make broadcast communication data of the terminal after the running time-frequency resource uploads warp let-off ovennodulation coding.
In the technical scheme, the channel measurement that is reported by the service condition according to the running time-frequency resource in cell and terminal Information, to terminal distribution running time-frequency resource, enabling the network environment according to residing for terminal in cell is adapted to eventually to terminal distribution The running time-frequency resource of communication is held, is such as disturbed minimum running time-frequency resource and/or the time-frequency of signal to noise ratio maximum to provide by other running time-frequency resources Source, to improve the quality of terminal communication.
By setting corresponding MCS grades and the number to terminal distribution resource block according to the running time-frequency resource of terminal distribution Amount, enabling neatly optimal MCS grades are set according to the running time-frequency resource of terminal distribution, to ensure that terminal-pair is to be sent Broadcast communication data carry out coded modulation after data number of blocks be adapted with the resource block quantity to terminal distribution, avoid In correlation technique in order to ensure the worst node of channel can also receive broadcast communication information and MCS that blindness efficiency of selection is relatively low Grade, while it also avoid causing the size of data after modulating-coding uncomfortable due to blindness setting MCS grades in correlation technique The scheme of data block is pieced together in addition when closing integer number of data blocks transmission, effectively reduces the resource taken during broadcasting traffic transmissions, Improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that when receiving the resource scheduling request that the terminal is sent, according to described The transmit power of resource scheduling request determines whether the resource scheduling request is the broadcast communication resource dispatch request.
In the technical scheme, specifically, terminal is when sending broadcast communication resource dispatch request, in order that base station energy Broadcast communication resource dispatch request and common resources dispatch request are enough accurately distinguished, broadcast communication resource dispatch request can be set Transmit power different from the transmit power of common resources dispatch request, and network side (such as base station) is receiving resource scheduling request When, it can determine whether it is broadcast communication resource dispatch request according to the transmit power of resource scheduling request, in order to broadcast The identification of communication resource dispatch request.Certainly, the transmit power of broadcast communication resource dispatch request can also be adjusted with common resources The transmit power for spending request is identical.
In the above-mentioned technical solutions, it is preferable that be specially to the step of terminal distribution running time-frequency resource:To the terminal Minimum running time-frequency resource is disturbed in distribution by other running time-frequency resources, and/or is provided to the maximum time-frequency of the terminal distribution signal to noise ratio Source;Or give the time-frequency resource allocating in predetermined running time-frequency resource pond to the terminal.
In the technical scheme, by terminal distribution by other running time-frequency resources disturb minimum running time-frequency resource and/or The running time-frequency resource maximum to terminal distribution signal to noise ratio, it can be ensured that terminal is when carrying out broadcast communication with higher communication matter Amount.Certainly, network side (such as base station) can also will be disturbed minimum running time-frequency resource and/or signal to noise ratio most by other running time-frequency resources Big running time-frequency resource, or other running time-frequency resources are put into predetermined video resource pond, are independently selected by terminal, such as do not having In the case of having the network coverage.
In the above-mentioned technical solutions, it is preferable that the frequency disturbed by other running time-frequency resources in minimum running time-frequency resource Rate resource includes:The marginal frequency of frequency resource in the cell.
In the technical scheme, it is generally the case that the marginal frequency of the frequency resource in cell is by other running time-frequency resources Interference is minimum, therefore, can ensure broadcast communication data transmission to the marginal frequency of terminal distribution intra-cell frequency resource Reliability, improve the communication quality of terminal.
In the above-mentioned technical solutions, it is preferable that the step of setting the coded modulation grade be specially:According to the time-frequency The signal to noise ratio of resource chooses the coded modulation grade in default coded modulation table.
According to another aspect of the present invention, a kind of resource allocation device for broadcast communication between terminal is additionally provided, Including:Allocation unit, for interactive unit receive terminal transmission broadcast communication resource dispatch request when, according in cell Running time-frequency resource service condition and the channel measurement information that reports of the terminal, to the terminal distribution running time-frequency resource, and According to the running time-frequency resource to the terminal distribution, set modulating-coding grade of the terminal when transmitting broadcast communication data and To the quantity of the terminal distribution resource block;The interactive unit, for by the allocation unit to the terminal distribution when The quantity of the resource block of frequency resource, the modulating-coding grade of setting and distribution is sent to the terminal, for described Terminal is modulated coding according to the quantity of the modulating-coding grade and the resource block to broadcast communication data to be sent, And the terminal is set to transmit the broadcast communication data after modulating-coding in the running time-frequency resource.
In the technical scheme, the channel measurement that is reported by the service condition according to the running time-frequency resource in cell and terminal Information, to terminal distribution running time-frequency resource, enabling the network environment according to residing for terminal in cell is adapted to eventually to terminal distribution The running time-frequency resource of communication is held, is such as disturbed minimum running time-frequency resource and/or the time-frequency of signal to noise ratio maximum to provide by other running time-frequency resources Source, to improve the quality of terminal communication.
By setting corresponding MCS grades and the number to terminal distribution resource block according to the running time-frequency resource of terminal distribution Amount, enabling neatly optimal MCS grades are set according to the running time-frequency resource of terminal distribution, to ensure that terminal-pair is to be sent Broadcast communication data carry out coded modulation after data number of blocks be adapted with the resource block quantity to terminal distribution, avoid In correlation technique in order to ensure the worst node of channel can also receive broadcast communication information and MCS that blindness efficiency of selection is relatively low Grade, while it also avoid causing the size of data after modulating-coding uncomfortable due to blindness setting MCS grades in correlation technique The scheme of data block is pieced together in addition when closing integer number of data blocks transmission, effectively reduces the resource taken during broadcasting traffic transmissions, Improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that the interactive unit is additionally operable to:Receive the scheduling of resource that the terminal is sent Request, determines whether to receive the broadcast communication resource dispatch request according to the transmit power of the resource scheduling request.
In the technical scheme, specifically, terminal is when sending broadcast communication resource dispatch request, in order that base station energy Broadcast communication resource dispatch request and common resources dispatch request are enough accurately distinguished, broadcast communication resource dispatch request can be set Transmit power different from the transmit power of common resources dispatch request, and network side (such as base station) is receiving resource scheduling request When, it can determine whether it is broadcast communication resource dispatch request according to the transmit power of resource scheduling request, in order to broadcast The identification of communication resource dispatch request.Certainly, the transmit power of broadcast communication resource dispatch request can also be adjusted with common resources The transmit power for spending request is identical.
In the above-mentioned technical solutions, it is preferable that the allocation unit is specifically used for:To the terminal distribution by other when The minimum running time-frequency resource of frequency resource interference, and/or the running time-frequency resource to terminal distribution signal to noise ratio maximum;Or by predetermined time-frequency Time-frequency resource allocating in resource pool gives the terminal.
In the technical scheme, by terminal distribution by other running time-frequency resources disturb minimum running time-frequency resource and/or The running time-frequency resource maximum to terminal distribution signal to noise ratio, it can be ensured that terminal is when carrying out broadcast communication with higher communication matter Amount.Certainly, network side (such as base station) can also will be disturbed minimum running time-frequency resource and/or signal to noise ratio most by other running time-frequency resources Big running time-frequency resource, or other running time-frequency resources are put into predetermined video resource pond, are independently selected by terminal, such as do not having In the case of having the network coverage.
In the above-mentioned technical solutions, it is preferable that the frequency disturbed by other running time-frequency resources in minimum running time-frequency resource Rate resource includes:The marginal frequency of frequency resource in the cell.
In the technical scheme, it is generally the case that the marginal frequency of the frequency resource in cell is by other running time-frequency resources Interference is minimum, therefore, can ensure broadcast communication data transmission to the marginal frequency of terminal distribution intra-cell frequency resource Reliability, improve the communication quality of terminal.
In the above-mentioned technical solutions, it is preferable that the allocation unit is specifically used for:According to the signal to noise ratio of the running time-frequency resource The coded modulation grade is chosen in default coded modulation table.
The invention also provides a kind of base station, including the resource allocation device described in any of the above-described technical scheme.
According to another aspect of the invention, there is provided a kind of method of broadcast communication, including:It is logical that broadcast is sent to network side Believe resource scheduling request, and reporting channel metrical information;Receive use feelings of the network side according to the running time-frequency resource in cell Condition and the running time-frequency resource of channel measurement information distribution, and coded modulation corresponding with the running time-frequency resource of distribution etc. The quantity of level and the resource block of distribution;It is logical to broadcast to be sent according to the coded modulation grade and the quantity of the resource block Letter data is modulated coding, and transmits broadcast communication data on the running time-frequency resource.
In the technical scheme, terminal passes through reporting channel metrical information so that network side (such as base station) can be according to end Network environment (service condition and disturbed condition of the running time-frequency resource such as in cell) residing for end in cell is fitted to terminal distribution Close the running time-frequency resource of terminal communication, such as by other running time-frequency resources disturb minimum running time-frequency resource and/or signal to noise ratio maximum when Frequency resource, to improve the quality of terminal communication.
Terminal is by receiving network side according to the MCS grades and distribution resource block set to the running time-frequency resource of terminal distribution Quantity so that the data number of blocks after coded modulation is carried out to sent broadcast communication data can distribute with network side Resource block quantity be adapted, avoid in correlation technique in order to ensure the worst node of channel can also receive broadcast communication information And the blindly MCS grade less efficient to terminal distribution (or terminal independently selects), while it also avoid in correlation technique by Terminal is caused to be modulated the size of data discomfort after encoding to sent broadcast communication data in blindness setting MCS grades The scheme of data block is pieced together in addition when closing integer number of data blocks transmission, effectively reduces the resource taken during broadcasting traffic transmissions, Improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that the transmit power of the broadcast communication resource dispatch request is set, so that institute State transmit power of the transmit power different from other communication resource dispatch requests of broadcast communication resource dispatch request.
In the technical scheme, specifically, terminal is when sending broadcast communication resource dispatch request, in order that base station energy Broadcast communication resource dispatch request and common resources dispatch request are enough accurately distinguished, broadcast communication resource dispatch request can be set Transmit power different from common resources dispatch request transmit power so that network side (such as base station) receive scheduling of resource please When asking, it is easy to the identification to broadcast communication resource dispatch request.Certainly, the transmit power of broadcast communication resource dispatch request also may be used With identical with the transmit power of common resources dispatch request.
In the above-mentioned technical solutions, it is preferable that according to the modulating-coding grade, the quantity of the resource block and to be sent Broadcast communication data quantity choose transmission block size;According to the size of the transmission block, uploaded in the running time-frequency resource Send broadcast communication data.
In the technical scheme, by the modulating-coding grade set according to network side, the resource block quantity of distribution and treat The quantity of the broadcast communication data of transmission chooses the size of transmission block so that is modulated volume to sent broadcast communication data The resource block quantity that transmission block quantity after code can distribute with network side is adapted, and is avoided in correlation technique due to blindly setting Determine MCS grades and cause the size of data after modulating-coding to be not suitable for adding the side for piecing together data block during integer number of data blocks transmission Case, the resource taken during broadcasting traffic transmissions is effectively reduced, improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that be specially the step of the size for choosing the transmission block:According to the modulation Encoding levels and the resource block quantity determine at least one alternate transmission block;Chosen at least one alternate transmission block Size is equal to the quantity of the broadcast communication data to be sent and the size of the alternate transmission block of fine setting factor sum as institute State the size of transmission block.
In the technical scheme, it is generally the case that be assured that transmission according to coded modulation grade and resource block quantity The size of block, but in order to more accurately choose the size of transmission block, can be chosen according to actual conditions suitable fine setting because Son, to ensure that the size of the transmission block of selection is more accurate, so as to improve the efficiency of broadcast communication data transmission, avoid resource Waste.
In the above-mentioned technical solutions, it is preferable that RRC (the Radio Resource sent by receiving the network side Control, radio resource control) signaling determines the value of the fine setting factor, or presets the value of the fine setting factor.
In the technical scheme, specifically, the net that the value for finely tuning the factor can be by network side (such as base station) according to reality Network environment is set, and can also use the value being previously set.
In accordance with a further aspect of the present invention, a kind of device of broadcast communication is additionally provided, including:Interactive unit, for Network side sends broadcast communication resource dispatch request, and reporting channel metrical information, and receives the network side according in cell Running time-frequency resource service condition and the channel measurement information distribution running time-frequency resource, with distribution the running time-frequency resource it is relative The coded modulation grade and the quantity of the resource block of distribution answered, and upload the warp let-off in the running time-frequency resource and cross processing unit coding Broadcast communication data after modulation;The processing unit, for the quantity according to the coded modulation grade and the resource block Coding is modulated to broadcast communication data to be sent, to obtain the broadcast communication data after the coded modulation.
In the technical scheme, terminal passes through reporting channel metrical information so that network side (such as base station) can be according to end Network environment (service condition and disturbed condition of the running time-frequency resource such as in cell) residing for end in cell is fitted to terminal distribution Close the running time-frequency resource of terminal communication, such as by other running time-frequency resources disturb minimum running time-frequency resource and/or signal to noise ratio maximum when Frequency resource, to improve the quality of terminal communication.
Terminal is by receiving network side according to the MCS grades and distribution resource block set to the running time-frequency resource of terminal distribution Quantity so that the data number of blocks after coded modulation is carried out to sent broadcast communication data can distribute with network side Resource block quantity be adapted, avoid in correlation technique in order to ensure the worst node of channel can also receive broadcast communication information And the blindly MCS grade less efficient to terminal distribution (or terminal independently selects), while it also avoid in correlation technique by Terminal is caused to be modulated the size of data discomfort after encoding to sent broadcast communication data in blindness setting MCS grades The scheme of data block is pieced together in addition when closing integer number of data blocks transmission, effectively reduces the resource taken during broadcasting traffic transmissions, Improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that also include:Setup unit, the institute sent for setting the interactive unit The transmit power of broadcast communication resource dispatch request is stated, so that the transmit power of the broadcast communication resource dispatch request is different from it The transmit power of his communication resource dispatch request.
In the technical scheme, specifically, terminal is when sending broadcast communication resource dispatch request, in order that base station energy Broadcast communication resource dispatch request and common resources dispatch request are enough accurately distinguished, broadcast communication resource dispatch request can be set Transmit power different from common resources dispatch request transmit power so that network side (such as base station) receive scheduling of resource please When asking, it is easy to the identification to broadcast communication resource dispatch request.Certainly, the transmit power of broadcast communication resource dispatch request also may be used With identical with the transmit power of common resources dispatch request.
In the above-mentioned technical solutions, it is preferable that the processing unit is additionally operable to:According to the modulating-coding grade, described The quantity of resource block and the quantity of broadcast communication data to be sent choose the size of transmission block;The interactive unit is specifically also used In, according to the processing unit choose the transmission block size, transmit broadcast communication data on the running time-frequency resource.
In the technical scheme, by the modulating-coding grade set according to network side, the resource block quantity of distribution and treat The quantity of the broadcast communication data of transmission chooses the size of transmission block so that is modulated volume to sent broadcast communication data The resource block quantity that transmission block quantity after code can distribute with network side is adapted, and is avoided in correlation technique due to blindly setting Determine MCS grades and cause the size of data after modulating-coding to be not suitable for adding the side for piecing together data block during integer number of data blocks transmission Case, the resource taken during broadcasting traffic transmissions is effectively reduced, improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that the processing unit is specifically used for:According to the modulating-coding grade and institute State resource block quantity and determine at least one alternate transmission block;Size is chosen at least one alternate transmission block equal to described The size of alternate transmission block of the quantity of broadcast communication data to be sent with finely tuning factor sum is as the big of the transmission block It is small.
In the technical scheme, it is generally the case that be assured that transmission according to coded modulation grade and resource block quantity The size of block, but in order to more accurately choose the size of transmission block, can be chosen according to actual conditions suitable fine setting because Son, to ensure that the size of the transmission block of selection is more accurate, so as to improve the efficiency of broadcast communication data transmission, avoid resource Waste.
In the above-mentioned technical solutions, it is preferable that the interactive unit is additionally operable to:Receive the RRC letters that the network side is sent Order;The processing unit is additionally operable to, and the RRC signaling received according to the interactive unit determines the fine setting factor Value, or the value of the default fine setting factor.
In the technical scheme, specifically, the net that the value for finely tuning the factor can be by network side (such as base station) according to reality Network environment is set, and can also use the value being previously set.
The invention also provides a kind of terminal, include the device of the broadcast communication described in any of the above-described technical scheme.
, can be reasonably to terminal distribution resource by above technical scheme, it is ensured that broadcast communication data accounts in transmission With an appropriate number of data block, the efficiency of broadcast communication data transmission is improved, while the communication quality of terminal can be improved.
Brief description of the drawings
Fig. 1 shows the flow chart that information source is handled to sent information;
Fig. 2 shows the signal according to an embodiment of the invention for the resource allocation methods of broadcast communication between terminal Flow chart;
Fig. 3 shows the signal according to an embodiment of the invention for the resource allocation device of broadcast communication between terminal Block diagram;
Fig. 4 shows the schematic flow diagram of the method for broadcast communication according to an embodiment of the invention;
Fig. 5 shows the schematic block diagram of the device of broadcast communication according to an embodiment of the invention;
Fig. 6 shows the interaction schematic diagram between terminal according to an embodiment of the invention and base station.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.
Fig. 2 shows the signal according to an embodiment of the invention for the resource allocation methods of broadcast communication between terminal Flow chart.
As shown in Fig. 2 the resource allocation methods according to an embodiment of the invention for broadcast communication between terminal, bag Include:
Step 202, when receiving the broadcast communication resource dispatch request of terminal transmission, according to the running time-frequency resource in cell Service condition and the channel measurement information that reports of terminal, to terminal distribution running time-frequency resource;
Step 204, according to the running time-frequency resource to terminal distribution, modulation of the setting terminal when transmitting broadcast communication data is compiled Code grade and the quantity to terminal distribution resource block;
Step 206, by the running time-frequency resource of terminal distribution, setting modulating-coding grade and distribution resource block quantity Send to terminal, so that terminal is adjusted according to modulating-coding grade and the quantity of resource block to broadcast communication data to be sent System coding, and make broadcast communication data of the terminal after running time-frequency resource uploads warp let-off ovennodulation coding.
In the technical scheme, the channel measurement that is reported by the service condition according to the running time-frequency resource in cell and terminal Information, to terminal distribution running time-frequency resource, enabling the network environment according to residing for terminal in cell is adapted to eventually to terminal distribution The running time-frequency resource of communication is held, is such as disturbed minimum running time-frequency resource and/or the time-frequency of signal to noise ratio maximum to provide by other running time-frequency resources Source, to improve the quality of terminal communication.
By setting corresponding MCS grades and the number to terminal distribution resource block according to the running time-frequency resource of terminal distribution Amount, enabling neatly optimal MCS grades are set according to the running time-frequency resource of terminal distribution, to ensure that terminal-pair is to be sent Broadcast communication data carry out coded modulation after data number of blocks be adapted with the resource block quantity to terminal distribution, avoid In correlation technique in order to ensure the worst node of channel can also receive broadcast communication information and MCS that blindness efficiency of selection is relatively low Grade, while it also avoid causing the size of data after modulating-coding uncomfortable due to blindness setting MCS grades in correlation technique The scheme of data block is pieced together in addition when closing integer number of data blocks transmission, effectively reduces the resource taken during broadcasting traffic transmissions, Improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that when receiving the resource scheduling request that the terminal is sent, according to described The transmit power of resource scheduling request determines whether the resource scheduling request is the broadcast communication resource dispatch request.
In the technical scheme, specifically, terminal is when sending broadcast communication resource dispatch request, in order that base station energy Broadcast communication resource dispatch request and common resources dispatch request are enough accurately distinguished, broadcast communication resource dispatch request can be set Transmit power different from the transmit power of common resources dispatch request, and network side (such as base station) is receiving resource scheduling request When, it can determine whether it is broadcast communication resource dispatch request according to the transmit power of resource scheduling request, in order to broadcast The identification of communication resource dispatch request.Certainly, the transmit power of broadcast communication resource dispatch request can also be adjusted with common resources The transmit power for spending request is identical.
In the above-mentioned technical solutions, it is preferable that be specially to the step of terminal distribution running time-frequency resource:To the terminal Minimum running time-frequency resource is disturbed in distribution by other running time-frequency resources, and/or is provided to the maximum time-frequency of the terminal distribution signal to noise ratio Source;Or give the time-frequency resource allocating in predetermined running time-frequency resource pond to the terminal.
In the technical scheme, by terminal distribution by other running time-frequency resources disturb minimum running time-frequency resource and/or The running time-frequency resource maximum to terminal distribution signal to noise ratio, it can be ensured that terminal is when carrying out broadcast communication with higher communication matter Amount.Certainly, network side (such as base station) can also will be disturbed minimum running time-frequency resource and/or signal to noise ratio most by other running time-frequency resources Big running time-frequency resource, or other running time-frequency resources are put into predetermined video resource pond, are independently selected by terminal, such as do not having In the case of having the network coverage.
In the above-mentioned technical solutions, it is preferable that the frequency disturbed by other running time-frequency resources in minimum running time-frequency resource Rate resource includes:The marginal frequency of frequency resource in the cell.
In the technical scheme, it is generally the case that the marginal frequency of the frequency resource in cell is by other running time-frequency resources Interference is minimum, therefore, can ensure broadcast communication data transmission to the marginal frequency of terminal distribution intra-cell frequency resource Reliability, improve the communication quality of terminal.
In the above-mentioned technical solutions, it is preferable that the step of setting the coded modulation grade be specially:According to the time-frequency The signal to noise ratio of resource chooses the coded modulation grade in default coded modulation table.
Fig. 3 shows the signal according to an embodiment of the invention for the resource allocation device of broadcast communication between terminal Block diagram.
As shown in figure 3, the resource allocation device 300 according to an embodiment of the invention for broadcast communication between terminal, Including:Allocation unit 302, for interactive unit 304 receive terminal transmission broadcast communication resource dispatch request when, according to The channel measurement information that the service condition and terminal of running time-frequency resource in cell report, to terminal distribution running time-frequency resource, Yi Jigen According to the running time-frequency resource to terminal distribution, modulating-coding grade of the setting terminal when transmitting broadcast communication data and to terminal distribution The quantity of resource block;Interactive unit 304, for by running time-frequency resource from allocation unit 302 to terminal distribution, setting modulating-coding Grade and the quantity of the resource block of distribution are sent to terminal, so that terminal is treated according to the quantity of modulating-coding grade and resource block The broadcast communication data of transmission is modulated coding, and terminal is transmitted the broadcast communication after modulating-coding in running time-frequency resource Data.
In the technical scheme, the channel measurement that is reported by the service condition according to the running time-frequency resource in cell and terminal Information, to terminal distribution running time-frequency resource, enabling the network environment according to residing for terminal in cell is adapted to eventually to terminal distribution The running time-frequency resource of communication is held, is such as disturbed minimum running time-frequency resource and/or the time-frequency of signal to noise ratio maximum to provide by other running time-frequency resources Source, to improve the quality of terminal communication.
By setting corresponding MCS grades and the number to terminal distribution resource block according to the running time-frequency resource of terminal distribution Amount, enabling neatly optimal MCS grades are set according to the running time-frequency resource of terminal distribution, to ensure that terminal-pair is to be sent Broadcast communication data carry out coded modulation after data number of blocks be adapted with the resource block quantity to terminal distribution, avoid In correlation technique in order to ensure the worst node of channel can also receive broadcast communication information and MCS that blindness efficiency of selection is relatively low Grade, while it also avoid causing the size of data after modulating-coding uncomfortable due to blindness setting MCS grades in correlation technique The scheme of data block is pieced together in addition when closing integer number of data blocks transmission, effectively reduces the resource taken during broadcasting traffic transmissions, Improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that the interactive unit 304 is additionally operable to:Receive the resource that the terminal is sent Dispatch request, determine whether that receiving the broadcast communication resource scheduling asks according to the transmit power of the resource scheduling request Ask.
In the technical scheme, specifically, terminal is when sending broadcast communication resource dispatch request, in order that base station energy Broadcast communication resource dispatch request and common resources dispatch request are enough accurately distinguished, broadcast communication resource dispatch request can be set Transmit power different from the transmit power of common resources dispatch request, and network side (such as base station) is receiving resource scheduling request When, it can determine whether it is broadcast communication resource dispatch request according to the transmit power of resource scheduling request, in order to broadcast The identification of communication resource dispatch request.Certainly, the transmit power of broadcast communication resource dispatch request can also be adjusted with common resources The transmit power for spending request is identical.
In the above-mentioned technical solutions, it is preferable that the allocation unit 302 is specifically used for:To the terminal distribution by it The running time-frequency resource of his running time-frequency resource interference minimum, and/or the running time-frequency resource to terminal distribution signal to noise ratio maximum;Or will be predetermined Time-frequency resource allocating in running time-frequency resource pond gives the terminal.
In the technical scheme, by terminal distribution by other running time-frequency resources disturb minimum running time-frequency resource and/or The running time-frequency resource maximum to terminal distribution signal to noise ratio, it can be ensured that terminal is when carrying out broadcast communication with higher communication matter Amount.Certainly, network side (such as base station) can also will be disturbed minimum running time-frequency resource and/or signal to noise ratio most by other running time-frequency resources Big running time-frequency resource, or other running time-frequency resources are put into predetermined video resource pond, are independently selected by terminal, such as do not having In the case of having the network coverage.
In the above-mentioned technical solutions, it is preferable that the frequency disturbed by other running time-frequency resources in minimum running time-frequency resource Rate resource includes:The marginal frequency of frequency resource in the cell.
In the technical scheme, it is generally the case that the marginal frequency of the frequency resource in cell is by other running time-frequency resources Interference is minimum, therefore, can ensure broadcast communication data transmission to the marginal frequency of terminal distribution intra-cell frequency resource Reliability, improve the communication quality of terminal.
In the above-mentioned technical solutions, it is preferable that the allocation unit 302 is specifically used for:According to the letter of the running time-frequency resource Make an uproar than choosing the coded modulation grade in default coded modulation table.
The invention also provides a kind of base station (not shown in Fig. 3), including resource allocation device as shown in Figure 3 300.
Fig. 4 shows the schematic flow diagram of the method for broadcast communication according to an embodiment of the invention.
As shown in figure 4, the method for broadcast communication according to an embodiment of the invention, comprises the following steps:
Step 402, broadcast communication resource dispatch request, and reporting channel metrical information are sent to network side;
Step 404, receive what network side distributed according to the service condition and channel measurement information of the running time-frequency resource in cell Running time-frequency resource, and the coded modulation grade corresponding with the running time-frequency resource of distribution and the quantity of the resource block of distribution;
Step 406, broadcast communication data to be sent is modulated according to coded modulation grade and the quantity of resource block Coding, and broadcast communication data is transmitted on running time-frequency resource.
In the technical scheme, terminal passes through reporting channel metrical information so that network side (such as base station) can be according to end Network environment (service condition and disturbed condition of the running time-frequency resource such as in cell) residing for end in cell is fitted to terminal distribution Close the running time-frequency resource of terminal communication, such as by other running time-frequency resources disturb minimum running time-frequency resource and/or signal to noise ratio maximum when Frequency resource, to improve the quality of terminal communication.
Terminal is by receiving network side according to the MCS grades and distribution resource block set to the running time-frequency resource of terminal distribution Quantity so that the data number of blocks after coded modulation is carried out to sent broadcast communication data can distribute with network side Resource block quantity be adapted, avoid in correlation technique in order to ensure the worst node of channel can also receive broadcast communication information And the blindly MCS grade less efficient to terminal distribution (or terminal independently selects), while it also avoid in correlation technique by Terminal is caused to be modulated the size of data discomfort after encoding to sent broadcast communication data in blindness setting MCS grades The scheme of data block is pieced together in addition when closing integer number of data blocks transmission, effectively reduces the resource taken during broadcasting traffic transmissions, Improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that the transmit power of the broadcast communication resource dispatch request is set, so that institute State transmit power of the transmit power different from other communication resource dispatch requests of broadcast communication resource dispatch request.
In the technical scheme, specifically, terminal is when sending broadcast communication resource dispatch request, in order that base station energy Broadcast communication resource dispatch request and common resources dispatch request are enough accurately distinguished, broadcast communication resource dispatch request can be set Transmit power different from common resources dispatch request transmit power so that network side (such as base station) receive scheduling of resource please When asking, it is easy to the identification to broadcast communication resource dispatch request.Certainly, the transmit power of broadcast communication resource dispatch request also may be used With identical with the transmit power of common resources dispatch request.
In the above-mentioned technical solutions, it is preferable that according to the modulating-coding grade, the quantity of the resource block and to be sent Broadcast communication data quantity choose transmission block size;According to the size of the transmission block, uploaded in the running time-frequency resource Send broadcast communication data.
In the technical scheme, by the modulating-coding grade set according to network side, the resource block quantity of distribution and treat The quantity of the broadcast communication data of transmission chooses the size of transmission block so that is modulated volume to sent broadcast communication data The resource block quantity that transmission block quantity after code can distribute with network side is adapted, and is avoided in correlation technique due to blindly setting Determine MCS grades and cause the size of data after modulating-coding to be not suitable for adding the side for piecing together data block during integer number of data blocks transmission Case, the resource taken during broadcasting traffic transmissions is effectively reduced, improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that be specially the step of the size for choosing the transmission block:According to the modulation Encoding levels and the resource block quantity determine at least one alternate transmission block;Chosen at least one alternate transmission block Size is equal to the quantity of the broadcast communication data to be sent and the size of the alternate transmission block of fine setting factor sum as institute State the size of transmission block.
In the technical scheme, it is generally the case that be assured that transmission according to coded modulation grade and resource block quantity The size of block, but in order to more accurately choose the size of transmission block, can be chosen according to actual conditions suitable fine setting because Son, to ensure that the size of the transmission block of selection is more accurate, so as to improve the efficiency of broadcast communication data transmission, avoid resource Waste.
In the above-mentioned technical solutions, it is preferable that RRC (the Radio Resource sent by receiving the network side Control, radio resource control) signaling determines the value of the fine setting factor, or presets the value of the fine setting factor.
In the technical scheme, specifically, the net that the value for finely tuning the factor can be by network side (such as base station) according to reality Network environment is set, and can also use the value being previously set.
Fig. 5 shows the schematic block diagram of the device of broadcast communication according to an embodiment of the invention.
As shown in figure 5, the device 500 of broadcast communication according to an embodiment of the invention, including:Interactive unit 502, is used for Broadcast communication resource dispatch request, and reporting channel metrical information are sent to network side, and receives the network side according to cell The service condition of interior running time-frequency resource and the running time-frequency resource of channel measurement information distribution, the running time-frequency resource phase with distributing The quantity of corresponding coded modulation grade and the resource block of distribution, and upload the warp let-off in the running time-frequency resource and cross processing unit Broadcast communication data after 504 coded modulations;The processing unit 504, for according to the coded modulation grade and the money The quantity of source block is modulated coding to broadcast communication data to be sent, to obtain the broadcast communication number after the coded modulation According to.
In the technical scheme, terminal passes through reporting channel metrical information so that network side (such as base station) can be according to end Network environment (service condition and disturbed condition of the running time-frequency resource such as in cell) residing for end in cell is fitted to terminal distribution Close the running time-frequency resource of terminal communication, such as by other running time-frequency resources disturb minimum running time-frequency resource and/or signal to noise ratio maximum when Frequency resource, to improve the quality of terminal communication.
Terminal is by receiving network side according to the MCS grades and distribution resource block set to the running time-frequency resource of terminal distribution Quantity so that the data number of blocks after coded modulation is carried out to sent broadcast communication data can distribute with network side Resource block quantity be adapted, avoid in correlation technique in order to ensure the worst node of channel can also receive broadcast communication information And the blindly MCS grade less efficient to terminal distribution (or terminal independently selects), while it also avoid in correlation technique by Terminal is caused to be modulated the size of data discomfort after encoding to sent broadcast communication data in blindness setting MCS grades The scheme of data block is pieced together in addition when closing integer number of data blocks transmission, effectively reduces the resource taken during broadcasting traffic transmissions, Improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that also include:Setup unit 506, sent out for setting the interactive unit 502 The transmit power for the broadcast communication resource dispatch request sent, so that the transmit power of the broadcast communication resource dispatch request Different from the transmit power of other communication resource dispatch requests.
In the technical scheme, specifically, terminal is when sending broadcast communication resource dispatch request, in order that base station energy Broadcast communication resource dispatch request and common resources dispatch request are enough accurately distinguished, broadcast communication resource dispatch request can be set Transmit power different from common resources dispatch request transmit power so that network side (such as base station) receive scheduling of resource please When asking, it is easy to the identification to broadcast communication resource dispatch request.Certainly, the transmit power of broadcast communication resource dispatch request also may be used With identical with the transmit power of common resources dispatch request.
In the above-mentioned technical solutions, it is preferable that the processing unit 504 is additionally operable to:According to the modulating-coding grade, institute State the quantity of resource block and the quantity of broadcast communication data to be sent chooses the size of transmission block;The interactive unit 502 has Body is additionally operable to, and the size for the transmission block chosen according to the processing unit, broadcast communication is transmitted on the running time-frequency resource Data.
In the technical scheme, by the modulating-coding grade set according to network side, the resource block quantity of distribution and treat The quantity of the broadcast communication data of transmission chooses the size of transmission block so that is modulated volume to sent broadcast communication data The resource block quantity that transmission block quantity after code can distribute with network side is adapted, and is avoided in correlation technique due to blindly setting Determine MCS grades and cause the size of data after modulating-coding to be not suitable for adding the side for piecing together data block during integer number of data blocks transmission Case, the resource taken during broadcasting traffic transmissions is effectively reduced, improve the efficiency of broadcast communication data transmission.
In the above-mentioned technical solutions, it is preferable that the processing unit 504 is specifically used for:According to the modulating-coding grade At least one alternate transmission block is determined with the resource block quantity;Size is chosen at least one alternate transmission block to be equal to The size of alternate transmission block of the quantity of the broadcast communication data to be sent with finely tuning factor sum is as the transmission block Size.
In the technical scheme, it is generally the case that be assured that transmission according to coded modulation grade and resource block quantity The size of block, but in order to more accurately choose the size of transmission block, can be chosen according to actual conditions suitable fine setting because Son, to ensure that the size of the transmission block of selection is more accurate, so as to improve the efficiency of broadcast communication data transmission, avoid resource Waste.
In the above-mentioned technical solutions, it is preferable that the interactive unit 502 is additionally operable to:Receive the RRC that the network side is sent Signaling;The processing unit 504 is additionally operable to, and the fine setting is determined according to the RRC signaling that the interactive unit 502 receives The value of the factor, or the value of the default fine setting factor.
In the technical scheme, specifically, the net that the value for finely tuning the factor can be by network side (such as base station) according to reality Network environment is set, and can also use the value being previously set.
The invention also provides a kind of terminal (not shown in Fig. 5), include the device of broadcast communication as shown in Figure 5 500。
Interaction between above-described terminal and base station can be as shown in Figure 6.
Fig. 6 shows the interaction schematic diagram between terminal according to an embodiment of the invention and base station.
As shown in fig. 6, the interaction between terminal according to an embodiment of the invention and base station, including:
Step 602, D2D UE send the resource scheduling request of broadcast communication to base station.
Step 604, base station is when receiving the resource scheduling request of broadcast communication of UE transmissions, according to the interference in cell Situation is that UE selects corresponding running time-frequency resource, wherein, the running time-frequency resource of selection can be done by other running time-frequency resources in cell The running time-frequency resource of minimum or the running time-frequency resource that signal to noise ratio is maximum are disturbed, to ensure that UE has higher communication quality.
Step 606, base station sets corresponding MCS grades according to the running time-frequency resource selected for UE, it is, of course, also possible to be UE points Quantity with resource block.
Step 608, base station notifies the MCS grades of the running time-frequency resource selected for UE and setting to UE, it is of course also possible to will Resource block quantity for UE distribution is notified to UE.
Step 610, UE is right according to base station selected running time-frequency resource and the MCS grades of setting (and resource block quantity of distribution) Broadcast communication data to be sent is transmitted after carrying out coded modulation.
Technical scheme is described in detail above in association with accompanying drawing, it is contemplated that can not be neatly UE in correlation technique The communication resource is distributed, causes UE when being modulated coding to sent broadcast communication data, in fact it could happen that after coded modulation Data be not suitable for integer number of data blocks transmission situation, can only be gathered together enough data block by way of adding invalid data, be caused The waste of data block, and data transmission efficiency is relatively low.Therefore, the present invention propose it is a kind of it is new be used to broadcasting between terminal it is logical The Resource Allocation Formula of letter, can be reasonably to terminal distribution resource, it is ensured that broadcast communication data takes appropriate number in transmission The data block of amount, improves the efficiency of broadcast communication data transmission, while can improve the communication quality of terminal.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (18)

  1. A kind of 1. resource allocation methods for broadcast communication between terminal, it is characterised in that including:
    When receiving the resource scheduling request that the terminal is sent, institute is determined according to the transmit power of the resource scheduling request State whether resource scheduling request is the broadcast communication resource dispatch request;
    When receiving the broadcast communication resource dispatch request of terminal transmission, according to the service condition of the running time-frequency resource in cell and The channel measurement information that the terminal reports, to the terminal distribution running time-frequency resource;
    According to the running time-frequency resource to the terminal distribution, the modulating-coding of the terminal when transmitting broadcast communication data etc. is set Level and the quantity to the terminal distribution resource block;
    By to the running time-frequency resource of the terminal distribution, setting the modulating-coding grade and distribution the resource block quantity Send to the terminal, for the terminal according to the modulating-coding grade and the quantity of the resource block to be sent wide Broadcast communication data and be modulated coding, and lead to broadcast of the terminal after the running time-frequency resource uploads warp let-off ovennodulation coding Letter data.
  2. 2. resource allocation methods according to claim 1, it is characterised in that the step of to the terminal distribution running time-frequency resource Specially:
    Minimum running time-frequency resource is disturbed by other running time-frequency resources to the terminal distribution, and/or to the terminal distribution noise Than the running time-frequency resource of maximum;Or
    Give the time-frequency resource allocating in predetermined running time-frequency resource pond to the terminal.
  3. 3. resource allocation methods according to claim 2, it is characterised in that described to be disturbed minimum by other running time-frequency resources Running time-frequency resource in frequency resource include:
    The marginal frequency of frequency resource in the cell.
  4. 4. resource allocation methods according to claim 1, it is characterised in that the step of setting the coded modulation grade has Body is:
    The coded modulation grade is chosen in default coded modulation table according to the signal to noise ratio of the running time-frequency resource.
  5. A kind of 5. resource allocation device for broadcast communication between terminal, it is characterised in that including:
    Allocation unit, for interactive unit receive terminal transmission broadcast communication resource dispatch request when, according in cell Running time-frequency resource service condition and the channel measurement information that reports of the terminal, to the terminal distribution running time-frequency resource, and
    According to the running time-frequency resource to the terminal distribution, the modulating-coding of the terminal when transmitting broadcast communication data etc. is set Level and the quantity to the terminal distribution resource block;
    The interactive unit, for by running time-frequency resource from the allocation unit to the terminal distribution, setting the modulation compile Code grade and the quantity of the resource block of distribution are sent to the terminal, so that the terminal is according to the modulating-coding grade Coding is modulated to broadcast communication data to be sent with the quantity of the resource block, and the terminal is provided in the time-frequency Transmit the broadcast communication data after modulating-coding in source;
    The interactive unit is additionally operable to:
    The resource scheduling request that the terminal is sent is received, determines whether to receive according to the transmit power of the resource scheduling request To the broadcast communication resource dispatch request.
  6. 6. resource allocation device according to claim 5, it is characterised in that the allocation unit is specifically used for:
    Minimum running time-frequency resource is disturbed by other running time-frequency resources to the terminal distribution, and/or to the terminal distribution noise Than the running time-frequency resource of maximum;Or
    Give the time-frequency resource allocating in predetermined running time-frequency resource pond to the terminal.
  7. 7. resource allocation device according to claim 6, it is characterised in that described to be disturbed minimum by other running time-frequency resources Running time-frequency resource in frequency resource include:
    The marginal frequency of frequency resource in the cell.
  8. 8. resource allocation device according to claim 5, it is characterised in that the allocation unit is specifically used for:
    The coded modulation grade is chosen in default coded modulation table according to the signal to noise ratio of the running time-frequency resource.
  9. A kind of 9. base station, it is characterised in that including:Resource allocation device as any one of claim 5 to 8.
  10. A kind of 10. method of broadcast communication, it is characterised in that including:
    Broadcast communication resource dispatch request, and reporting channel metrical information are sent to network side;
    Receive the time-frequency that the network side distributes according to the service condition of the running time-frequency resource in cell and the channel measurement information Resource, and the coded modulation grade corresponding with the running time-frequency resource of distribution and the quantity of the resource block of distribution;
    Coding is modulated to broadcast communication data to be sent according to the quantity of the coded modulation grade and the resource block, And transmit broadcast communication data on the running time-frequency resource;
    The transmit power of the broadcast communication resource dispatch request is set, so that the transmission of the broadcast communication resource dispatch request Transmit power of the power different from other communication resource dispatch requests.
  11. 11. the method for broadcast communication according to claim 10, it is characterised in that also include:
    Chosen and transmitted according to the quantity of the modulating-coding grade, the quantity of the resource block and broadcast communication data to be sent The size of block;
    According to the size of the transmission block, broadcast communication data is transmitted on the running time-frequency resource.
  12. 12. the method for broadcast communication according to claim 11, it is characterised in that choose the step of the size of the transmission block It is rapid to be specially:
    At least one alternate transmission block is determined according to the modulating-coding grade and the resource block quantity;
    In at least one alternate transmission block choose size be equal to the broadcast communication data to be sent quantity with it is micro- Adjust size of the size of the alternate transmission block of factor sum as the transmission block.
  13. 13. the method for broadcast communication according to claim 12, it is characterised in that also include:
    The RRC signaling sent by receiving the network side determines the value of the fine setting factor, or presets the fine setting factor Value.
  14. A kind of 14. device of broadcast communication, it is characterised in that including:
    Interactive unit, for sending broadcast communication resource dispatch request, and reporting channel metrical information to network side, and receive institute State running time-frequency resource and the distribution that network side distributes according to the service condition of the running time-frequency resource in cell and the channel measurement information The corresponding coded modulation grade of the running time-frequency resource and distribution resource block quantity, and
    The broadcast communication data after processing unit coded modulation is crossed in the warp let-off is uploaded in the running time-frequency resource;
    The processing unit, for according to the quantity of the coded modulation grade and the resource block to broadcast communication to be sent Data are modulated coding, to obtain the broadcast communication data after the coded modulation;
    Setup unit, the transmit power of the broadcast communication resource dispatch request sent for setting the interactive unit, with Make the transmit power of the broadcast communication resource dispatch request different from the transmit power of other communication resource dispatch requests.
  15. 15. the device of broadcast communication according to claim 14, it is characterised in that the processing unit is additionally operable to:
    Chosen and transmitted according to the quantity of the modulating-coding grade, the quantity of the resource block and broadcast communication data to be sent The size of block;
    The interactive unit is specifically additionally operable to, the size for the transmission block chosen according to the processing unit, in the time-frequency Broadcast communication data is transmitted in resource.
  16. 16. the device of broadcast communication according to claim 15, it is characterised in that the processing unit is specifically used for:
    At least one alternate transmission block is determined according to the modulating-coding grade and the resource block quantity;
    In at least one alternate transmission block choose size be equal to the broadcast communication data to be sent quantity with it is micro- Adjust size of the size of the alternate transmission block of factor sum as the transmission block.
  17. 17. the device of broadcast communication according to claim 16, it is characterised in that the interactive unit is additionally operable to:
    Receive the RRC signaling that the network side is sent;
    The processing unit is additionally operable to, and the RRC signaling received according to the interactive unit determines the fine setting factor Value, or the value of the default fine setting factor.
  18. A kind of 18. terminal, it is characterised in that including:The device of broadcast communication as described in claim 14 or 17.
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