CN105262560B - A kind of method for transmitting signals and device - Google Patents
A kind of method for transmitting signals and device Download PDFInfo
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- CN105262560B CN105262560B CN201410336096.9A CN201410336096A CN105262560B CN 105262560 B CN105262560 B CN 105262560B CN 201410336096 A CN201410336096 A CN 201410336096A CN 105262560 B CN105262560 B CN 105262560B
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Abstract
The present invention relates to field of communication technology more particularly to a kind of method for transmitting signals and device, to solve in the prior art when sub-frame of uplink allocation proportion is less than downlink subframe allocation proportion, the relatively low problem of higher uplink bit rate.The embodiment of the present invention provides a kind of method for transmitting signals：User terminal determines multiple respective transmission power levels of transmission block TB；Wherein, the number of the multiple TB is more than the number of antennas of the user terminal；According to the transmission power level of determining each TB, the corresponding demodulated reference signals of the TB are sent, wherein the transmission running time-frequency resource of the corresponding demodulated reference signals of difference TB and/or code resource are different；And according to the transmission power level of determining each TB, determine the upstream data after being overlapped each TB, and send the upstream data.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method for transmitting signals and device.
Background technology
Long term evolution (Long Term Evolution, LTE) is by third generation partner program (The3rd
Generation Partnership Project, 3GPP) Universal Mobile Communication System (Universal that organizes to set up
Mobile Telecommunications System, UMTS) technical standard long term evolution.
Time division duplex (Time Division Duplexing, TDD) is a kind of dual-mode of LTE.In tdd mode
In system, user terminal send and receive data same frequency channel different time, namely with the time come detach receive and
Send channel.In LTE TDD, the length of a frame is 10s, is divided into the subframe that 10 length are 1s.The number of uplink and downlink
According to being transmitted in subframe different in same frame respectively.LTE TDD support different ratio of uplink subframe to downlink subframe, including
In two kinds of the configuration period in the configuration period and 10ms of 5ms, ascending-descending subframes ratio is respectively in the configuration period of wherein 5ms：3:
2,2:3,1:4,5:Ascending-descending subframes ratio is 3 respectively in 5,10ms configuration period:7,2:8,1:9.As it can be seen that in most cases
Sub-frame of uplink allocation proportion is less than downlink subframe allocation proportion, is less than downlink subframe allocation proportion in sub-frame of uplink allocation proportion
In the case of, higher uplink bit rate can be limited, this become system for restricting performance an important factor for.
To sum up, in LTE TDD systems, when sub-frame of uplink allocation proportion is less than downlink subframe allocation proportion, upper line number
Relatively low according to transmission rate, there are no related effective solution methods in the prior art.
Invention content
A kind of method for transmitting signals of offer of the embodiment of the present invention and device, to solve in the prior art when sub-frame of uplink point
When being less than downlink subframe allocation proportion with ratio, the relatively low problem of higher uplink bit rate.
A kind of method for transmitting signals provided in an embodiment of the present invention includes：
User terminal determines multiple respective transmission power levels of transmission block TB；Wherein, the number of the multiple TB is more than institute
State the number of antennas of user terminal；
The user terminal sends the corresponding demodulated reference signals of the TB according to the transmission power level of determining each TB,
The wherein transmission running time-frequency resource of the corresponding demodulated reference signals of difference TB and/or code resource is different；And
According to the transmission power level of determining each TB, the upstream data after being overlapped each TB is determined, and send
The upstream data.
Optionally, before the user terminal determines the respective transmission power levels of multiple TB, further include：
The user terminal receives the Downlink Control Information that base station issues；The Downlink Control Information includes the upper line number
According to including TB number, the running time-frequency resource of each demodulated reference signal, the sequence information of each demodulated reference signal and each TB of uplink
Modulation and coding strategy MCS information.
Optionally, the user terminal determines the respective transmission power levels of multiple TB, including：
The user terminal determines the respective transmission power levels of multiple TB according to the MCS grades of each TB.
Optionally, the user terminal determines the respective transmission power levels of multiple TB according to the MCS grades of each TB, packet
It includes：
The user terminal determines the sum of the message transmission rate for making N number of TBMaximum one group of transmission power level；Wherein, will
The message transmission rate of k-th of TB after N number of TB sorts according to the sequence of MCS grades from high to low
The sum of the transmission power level of each TBPtotFor the maximum transmission power of the user terminal, M is described in reception
The number of base stations for the upstream data that user terminal is sent, PkFor the transmission power level of k-th of TB, PiFor the transmission power of i-th of TB
Value, αbFor the channel energy between the user terminal and b-th of base station；User terminal is received for b-th of base station k-th
The sum of amplitude error caused by reception noise and error vector magnitude EVM when TB are distinguished；
The user terminal emits work(from this group of transmission power level according to the MCS grades of each TB for each TB selections
Rate value.
Another embodiment of the present invention provide a kind of method for transmitting signals include：
Base station receives the upstream data after being superimposed by multiple TB, and the corresponding demodulated reference signals of each TB；Wherein, institute
The number for stating multiple TB is more than the number of antennas for the user terminal for sending the upstream data, the corresponding demodulation reference letter of different TB
Number transmission running time-frequency resource and/or code resource it is different；
The base station is determined according to the corresponding demodulated reference signals of each TB of reception for being solved from the upstream data
Recall the channel information of the TB.
Optionally, the base station is according to the corresponding demodulated reference signals of each TB of reception, determines for from the uplink
After the channel information for demodulating the TB in data, further include：
The base station is by the upstream data of reception and determination for demodulating the TB from the upstream data
Channel information be sent to other base stations；Or,
The base station is according to the determining channel information for demodulating the TB from the upstream data, from the uplink
The TB is demodulated in data.
Optionally, the base station is according to the determining channel information for demodulating the TB from the upstream data, from
The TB is demodulated in the upstream data, including：
The channel information of upstream data, determination that the base station is received according to itself, and receive other base stations
The upstream data of transmission and channel information for demodulating the TB from the upstream data, based on maximum-ratio combing criterion from
The TB is demodulated in the upstream data.
Optionally, the base station demodulates each TB according to following steps from the upstream data：
The base station is based on serial interference elimination principle, descending according to channel magnitude in the determining channel information
Sequence the corresponding TB of the channel information is demodulated from the upstream data successively according to each channel information.
A kind of signal transmitting apparatus provided in an embodiment of the present invention includes：
Determining module, for determining that user terminal needs the multiple respective transmission power levels of transmission block TB sent；Wherein,
The number of the multiple TB is more than the number of antennas of the user terminal；
Sending module, the transmission power level of each TB for being determined according to the determining module, it is corresponding to send the TB
Demodulated reference signal, wherein the transmission running time-frequency resource of the corresponding demodulated reference signals of difference TB and/or code resource are different；And
According to the transmission power level for each TB that the determining module determines, the uplink after being overlapped each TB is determined
Data, and send the upstream data.
Another embodiment of the present invention provide a kind of signal transmitting apparatus include：
Receiving module, for receiving the upstream data after being superimposed by multiple TB, and the corresponding demodulation reference letters of each TB
Number；Wherein, the number of the multiple TB is more than the number of antennas for the user terminal for sending the upstream data, and different TB are corresponding
The transmission running time-frequency resource and/or code resource of demodulated reference signal are different；
Determining module, the corresponding demodulated reference signals of each TB for being received according to the receiving module, determination are used for
The channel information of the TB is demodulated from the upstream data.
User terminal determines multiple respective transmission power levels of transmission block TB in the embodiment of the present invention；Wherein, the multiple
The number of TB is more than the number of antennas of the user terminal；According to the transmission power level of determining each TB, TB correspondences are sent
Demodulated reference signal, wherein the transmission running time-frequency resource of the corresponding demodulated reference signals of difference TB and/or code resource are different；And root
According to the transmission power level of determining each TB, determines and send the upstream data after being overlapped each TB.In this way, base station side
The corresponding demodulated reference signals of each TB that can be based on reception carry out channel estimation, determine to demodulate the channel needed for each TB
Information demodulates multiple TB respectively further according to determining channel information.In the embodiment of the present invention, since user terminal can be same
Multiple TB (for example transmitting multiple TB on same resource block RB) are sent on running time-frequency resource, so as to greatly improve upper line number
According to transmission rate, and improve ascending resource utilization rate.
Description of the drawings
Fig. 1 is the method for transmitting signals flow chart that the embodiment of the present invention one provides；
Fig. 2 is method for transmitting signals flow chart provided by Embodiment 2 of the present invention；
Fig. 3 is the method for transmitting signals flow chart that the embodiment of the present invention three provides；
Fig. 4 is the method for transmitting signals flow chart that the embodiment of the present invention four provides；
Fig. 5 is the signal transmitting apparatus structural schematic diagram that the embodiment of the present invention five provides；
Fig. 6 is the signal transmitting apparatus structural schematic diagram that the embodiment of the present invention six provides.
Specific implementation mode
In LTE system, orthogonal mode, user are whole in the transmission generally use time upper orthogonal or frequency of upstream data
End can only transmit a transmission block (Transport Block, TB) on same running time-frequency resource (a such as resource block RB).This hair
Bright embodiment is in order to improve higher uplink bit rate, and using non-orthogonal data sender's formula, basic thought is：According to not
With the transmission power level that TB is respectively adopted, determine that the upstream data after being superimposed multiple TB (will also carry the uplink of each TB
Signal carries out Signal averaging)；And according to the transmission power level of each TB, the corresponding demodulated reference signals of the TB are sent to base
It stands, in this way, the corresponding demodulated reference signals of each TB that base station side can be based on reception carry out channel estimation, determines from described
The channel information needed for each TB is demodulated in upstream data, further according to determining each channel information from the upstream data
Each TB is demodulated respectively.
The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.
As shown in Figure 1, for the method for transmitting signals flow chart that the embodiment of the present invention one provides, include the following steps：
S101：User terminal determines the respective transmission power levels of multiple TB；Wherein, the number of the multiple TB is more than described
The number of antennas of user terminal.
In the step, user terminal is that each TB determines transmission power level respectively, and the transmission power level of different TB can not
Together, and the transmission power level of multiple TB and value no more than user terminal maximum transmission power value.In the embodiment of the present invention, no
Pipe is single-antenna user terminal or multiple antennas user terminal, can be in same time-frequency on every antenna of user terminal
Multiple TB are sent in resource (such as on a resource block RB).That is, if the user terminal is multiple antennas user terminal, in the use
Multiple and different TB can be sent on every antenna of family terminal on same running time-frequency resource, also, is sent in different antennae
TB it is different.
Optionally, if the modulation of difference TB and coding strategy (Modulation and Coding Scheme, MCS) grade
(namely MCS index values) is different, and user terminal can be according to the MCS grades sequence from high to low of TB, and respectively each TB is true
Fixed transmission power level from high to low.User terminal specifically determines that the optional embodiment of transmission power level will be implemented in the present invention
It is described in detail in example two, which is not described herein again.
Optionally, before S101, further include：The user terminal receives the Downlink Control Information that the base station issues；Institute
State running time-frequency resource that Downlink Control Information includes TB number included by the upstream data, sends each demodulated reference signal, each
It is one or more in the MCS information of each TB of sequence information and uplink of demodulated reference signal；
In above-mentioned Downlink Control Information, the transmission running time-frequency resource and/or code resource of the corresponding demodulated reference signal of different TB
Difference, namely the corresponding demodulated reference signals of difference TB can by time resource, frequency resource and sequence information at least
It is a kind of mutually orthogonal.
In specific implementation process, the Downlink Control Information can be handed down to user terminal by base station, can also be by
It is prespecified in agreement, it is not limited in the embodiment of the present invention.In above-mentioned Downlink Control Information, it is overlapped TB of transmission
Number (TB number included by the i.e. described upstream data) is the TB number that user terminal is sent on same running time-frequency resource.This hair
In bright embodiment, demodulated reference signal port, also referred to as power port is respectively configured in the multiple TB sent for user terminal uplink.
Different capacity port has respective running time-frequency resource and sequence, between them in time domain, frequency domain and code domain (sequence) at least
It is a kind of mutually orthogonal.That is, the demodulated reference signal for the different TB of correspondence that user terminal is sent is provided by time resource, frequency
It is one or more mutually orthogonal in source and code resource, simply, between each demodulated reference signal by sending time resource,
At least one of frequency resource and sequence information are upper mutually to be distinguished.Here, sequence information can specifically include demodulation reference sequence
Row corresponding sequence index, cyclic shift etc..The MCS information includes MCS grades namely MCS index values, according to the MCS
Index value can determine the corresponding modulating-coding strategies of each TB, and then be modulated volume to each TB according to the modulating-coding strategy
Code, at the same time it can also be that different TB determine different transmission powers according to MCS grades.
S102：User terminal sends the corresponding demodulated reference signals of the TB according to the transmission power level of determining each TB,
The wherein transmission running time-frequency resource of the corresponding demodulated reference signals of difference TB and/or code resource is different.
In the step, user terminal is using the transmission power level of each TB as the transmitting of the corresponding demodulated reference signals of the TB
Performance number.Specifically, user terminal may be used the transmission power level of determining each TB square root it is corresponding to the TB
Demodulated reference signal is sent to base station after being weighted.
It should be noted that the base station for receiving the uplink signal that user terminal is sent in the embodiment of the present invention can be one
It is a, can also be multiple.
S103：User terminal determines upper after being overlapped each TB according to the transmission power level of determining each TB
Row data, and send the upstream data.
Specifically, each TB can be by user terminal as weighting using the square root of respective transmission power level
Number, is superimposed again after being weighted to each TB.
Illustrate in preferred embodiment of the embodiment of the present invention below by a specific embodiment, user terminal
Determine the process of the respective transmission power levels (above-mentioned steps S101) of multiple TB.
As shown in Fig. 2, being method for transmitting signals flow chart provided by Embodiment 2 of the present invention, include the following steps：
S201：User terminal receives the Downlink Control Information that base station issues；The Downlink Control Information includes being overlapped
TB number N of transmission, the running time-frequency resource for sending each demodulated reference signal, the sequence information of each demodulated reference signal and uplink are each
It is one or more in the MCS information of TB, wherein the transmission running time-frequency resource of the corresponding demodulated reference signal of different TB and/or
Code resource is different.
In the embodiment of the present invention, user terminal can be single-antenna user terminal, alternatively, being carried out in the embodiment of the present invention
The transmission of row data is any antenna of multiple antennas user terminal.
S202：User terminal is that N number of TB determines one group of transmission power level.
Steps are as follows for specific execution：
A：Each TB is sorted according to the sequence of MCS grades from high to low, puts in order and is denoted as { 1,2 ... ... N }；
B：The maximum principle of the sum of message transmission rate based on each TB determines one group of transmission power level for each TB；
The implementation procedure of the step is：Determining makes the sum of the message transmission rate of N number of TBMaximum one group of transmitting
Power；Wherein, the message transmission rate of k-th of TB after N number of TB being sorted according to the sequence of MCS grades from high to lowThe sum of the transmission power level of each TBPtotFor the user terminal
Maximum transmission power value, M is the number of base stations for receiving the upstream data that the user terminal is sent, PkFor the hair of k-th of TB
Penetrate power, PiFor the transmission power of i-th of TB, αbFor the channel energy between the user terminal and b-th of base station；It is
Reception noise and error vector magnitude EVM when b base station receives k-th of TB of user terminal distinguish caused amplitude error
The sum of.Here, square of the channel magnitude of channel of the channel energy between user terminal and b-th of base station, EVM are to miss
The root-mean-square value of difference vector average power signal and the ratio between the root-mean-square value of ideal signal mean power.
The following detailed description of the implementation principle of the above process：
First, according to putting in order in S2a, the 1st TB is demodulated first, and other TB are considered as interference number when demodulation
According to, in this way determine the 1st TB message transmission rate here, P1As
The transmission power level of 1st TB, reception noise when receiving the 1st TB of user terminal for b-th of base station and error vector
The sum of amplitude error caused by amplitude (Error Vector Magnitude, EVM) is distinguished.Next, determining follow-up TB successively
Message transmission rate, when determining the message transmission rate of k-th of TB, it is assumed that -1 TB of kth can be successfully demodulated out simultaneously
It is deleted from the upstream data of reception, then the message transmission rate of k-th of TB
The rest may be inferred, the final message transmission rate for determining n-th TB
The message transmission rate of each TB obtained in above-mentioned (1), (2), (3) formula is substituted into formula
The sum of the transmission power of wherein each TBWhen determining the solution of formula (4), exhaustive search may be used,
Namely traversal mode, for example, can preset one group of transmission power initial value for meeting formula (5) and it is adjacent twice
The transmission power amplitude of variation of TB between search, such as, it is assumed that above-mentioned N values are 2, PtotIt is 5, sets amplitude of variation as 1, one group
Transmission power initial value is 1 and 4, is determined according to the initial valueValue, transmission power level is adjusted to 2 and 3 by second,
It determines againValue, transmission power level is adjusted to 3 and 2 for the third time, the 4th time transmission power level is adjusted to as 4 Hes
1, determining makes in this four groups of transmission power levelsMaximum one group of transmission power, the solution as (4) formula.
S203：User terminal emits from this group of transmission power level for each TB selections according to the MCS grades of each TB
Performance number.
In the step, by one group of transmission power that S202 is determined according to sequence from big to small be sequentially allocated to according to
Each TB that MCS grades arrange from big to small.
S204：User terminal sends the corresponding demodulated reference signals of the TB according to the transmission power level of determining each TB,
The wherein transmission running time-frequency resource of the corresponding demodulated reference signals of difference TB and/or code resource is different.
S205：According to the transmission power level of determining each TB, the upstream data after being overlapped each TB is determined, and
Send the upstream data.
After each base station receives the upstream data of user terminal transmission, according to each demodulated reference signal of reception to receiving
Upstream data in each TB demodulated, it is specifically described below.
As shown in figure 3, for the method for transmitting signals flow chart that the embodiment of the present invention three provides, including：
S301：Base station receives the upstream data after being superimposed by multiple TB, and the corresponding demodulated reference signals of each TB；Its
In, the number of the multiple TB is more than the number of antennas for the user terminal for sending the upstream data, the corresponding demodulation of different TB
The transmission running time-frequency resource and/or code resource of reference signal are different.
In the step, base station receives the upstream data synthesized by N number of TB that user terminal is sent, and for demodulating this
N number of demodulated reference signal of each TB in row data.
S302：The base station is determined according to the corresponding demodulated reference signals of each TB of reception for from the upper line number
The channel information of the TB is demodulated in.
In the step, base station carries out channel estimation according to the corresponding demodulated reference signals of each TB of reception, determines channel
Information, including channel magnitude information, phase information etc..Due to the transmission power of the transmission power and the TB of the demodulated reference signal
Be consistent, therefore, can the channel information based on estimation the TB is demodulated from the upstream data of reception.
S303：The base station is by the upstream data of reception and determination for being demodulated from the upstream data
The channel information of the TB is sent to other base stations；Or, the base station is used to demodulate from the upstream data according to determining
The channel information of the TB demodulates the TB from the upstream data.
In the step, when the base station for receiving user terminal upstream data has multiple, as one of base station, the base
It stands after receiving the upstream data of user terminal transmission and estimating channel information, oneself can be demodulated, can also be incited somebody to action
The upstream data and channel information are sent to other base stations, and joint demodulation is carried out by other base stations.If for example, in this multiple base station
Including multiple micro-base stations and a macro base station, then this multiple micro-base station can be by the channel of the upstream data and estimation that itself receive
Information is sent to macro base station, and the channel information of the upstream data and estimation of itself and the reception of multiple micro-base stations is combined by macro base station,
Each TB is demodulated from the upstream data.
In the embodiment of the present invention, the base station in above-mentioned S303 can be micro-base station, can also be macro base station, if the base station is
Macro base station, and the macro base station also has received the upstream data i.e. demodulation reference letter for the user terminal that other micro-base stations are sent
Number, then each TB can be demodulated from the upstream data based on following steps：
The channel information of upstream data, determination that the base station is received according to itself, and receive other base stations
The upstream data of transmission and channel information for demodulating the TB from the upstream data, based on maximum-ratio combing criterion from
The TB is demodulated in the upstream data.
In specific implementation process, the channel letter for the correspondence TB that the base station is estimated based on itself and other base stations
Breath is the demodulation factor that TB designs correspond to the upstream data that each base station receives respectively based on maximum-ratio combing criterion, is based on
The demodulation factor of design demodulates the TB from the upstream data.
Optionally, in S303, the base station demodulates each TB according to following steps from the upstream data：
The base station is based on serial interference elimination principle, descending according to channel magnitude in the determining channel information
Sequence the corresponding TB of the channel information is demodulated from the upstream data successively according to each channel information.
In specific implementation process, either multiple base stations united demodulation or single base station demodulate alone, and base station is solving
When adjusting each TB, can based on the principle of serial interference elimination, according to the sequence that the channel magnitude of each TB of correspondence is descending,
Each TB of the descending arrangement of transmission power is demodulated from the upstream data successively, and often demodulates a TB, it will
It is deleted in the upstream data of superposition.
In conjunction with above-described embodiment one~tri-, following embodiment four of the present invention gives a specific embodiment, specifically
Overlaps will not be repeated with above-described embodiment for description.
As shown in figure 4, for the method for transmitting signals flow chart that the embodiment of the present invention four provides, including：
S401：User terminal receives the Downlink Control Information that macro base station issues；The Downlink Control Information includes being folded
Add TB number N of transmission, the running time-frequency resource for sending each demodulated reference signal, the sequence information of each demodulated reference signal and uplink every
It is one or more in the MCS information of a TB, wherein the transmission running time-frequency resource of the corresponding demodulated reference signal of different TB and/
Or code resource is different.
S402：User terminal is that N number of TB determines one group of transmission power level.
Specific method of determination can be found in the description of embodiment two, and which is not described herein again.
S403：User terminal is according to the descending sequence of the MCS grades of each TB, from one group of transmitting work(of S402 determinations
In rate, descending transmission power is distributed for each TB.
S404：User terminal sends the corresponding demodulated reference signals of the TB according to the transmission power level of each TB, and according to
The transmission power level of each TB, determines the upstream data after being superimposed each TB, and determining upstream data is sent to the M
Base station.
S405：The M base station is determined according to the corresponding demodulated reference signals of each TB of reception for from the uplink
The channel information of the TB is demodulated in data.
S406：In the M base station M-1 micro-base station by the upstream data of reception and determination for from the uplink
The channel information that the TB is demodulated in data is sent to macro base station.
S407：The channel information that the macro base station determines itself and micro-base station is sent according to channel magnitude by
Small sequence is arrived greatly to be ranked up, and determines the sequencing for demodulating each TB.
In the step, macro base station determination demodulates the sequence of each TB, namely determines successively used by demodulating each TB certainly
The channel information that the channel information and micro-base station that body determines are sent.
S408：The macro base station is according to the sequence of S407, the criterion based on maximum-ratio combing criterion and serial interference elimination,
Demodulate each TB successively from the upstream data.
Based on same inventive concept, a kind of signal biography corresponding with method for transmitting signals is additionally provided in the embodiment of the present invention
Defeated device, since the principle that the device solves the problems, such as is similar to method for transmitting signals of the embodiment of the present invention, the reality of the device
The implementation for the method for may refer to is applied, overlaps will not be repeated.
As shown in figure 5, for the signal transmitting apparatus structural schematic diagram that the embodiment of the present invention five provides, including：
Determining module 51, for determining that user terminal needs the multiple respective transmission power levels of transmission block TB sent；Its
In, the number of the multiple TB is more than the number of antennas of the user terminal；
Sending module 52, the transmission power level of each TB for being determined according to the determining module 51, sends this TB pairs
The demodulated reference signal answered, wherein the transmission running time-frequency resource of the corresponding demodulated reference signals of difference TB and/or code resource are different；And
According to the transmission power level for each TB that the determining module 51 determines, determine upper after being overlapped each TB
Row data, and send the upstream data.
Optionally, described device further includes：
Receiving module 53, the Downlink Control Information issued for receiving the base station；The Downlink Control Information includes institute
State the TB number that upstream data includes, the running time-frequency resource of each demodulated reference signal, the sequence information of each demodulated reference signal and on
The modulation of each TB of row and coding strategy MCS information.
Optionally, the determining module 51 is specifically used for：According to the MCS grades of each TB, the respective hairs of multiple TB are determined
Penetrate performance number.
Optionally, the determining module 51 is specifically used for：
Determination makes the maximum one group of transmission power level of the sum of message transmission rate of N number of TB；Wherein, by N number of TB
According to the message transmission rate of k-th of TB after the sequence sequence of MCS grades from high to low
The sum of the transmission power level of each TBPtotFor the maximum transmission power value of the user terminal, M is reception institute
State the number of base stations of the upstream data of user terminal transmission, PkFor the transmission power level of k-th of TB, PiFor the transmitting work(of i-th of TB
Rate value, αbFor the channel energy between the user terminal and b-th of base station；User terminal kth is received for b-th of base station
The sum of amplitude error caused by reception noise and error vector magnitude EVM when a TB are distinguished；
According to the MCS grades of each TB, from this group of transmission power level, transmission power level is selected for each TB.
As shown in fig. 6, for the signal transmitting apparatus structural schematic diagram that the embodiment of the present invention six provides, including：
Receiving module 61, for receiving the upstream data after being superimposed by multiple TB, and the corresponding demodulation references of each TB
Signal；Wherein, the number of the multiple TB is more than the number of antennas for the user terminal for receiving the upstream data, and different TB are corresponded to
Demodulated reference signal transmission running time-frequency resource and/or code resource it is different；
Determining module 62, the corresponding demodulated reference signals of each TB for being received according to the receiving module 61 determine
Channel information for demodulating the TB from the upstream data.
Optionally, described device further includes：
Processing module 63, the upstream data and the determining module for receiving the receiving module 61 determine
The channel information for demodulating the TB from the upstream data be sent to other base stations；Or, for according to determining use
In the channel information for demodulating the TB from the upstream data, the TB is demodulated from the upstream data.
Optionally, the processing module 63 is specifically used for：
The channel information of the upstream data, the determination of the determining module 62 that are received according to the receiving module 61, with
And the upstream data that sends of other base stations for receiving of the receiving module 61 and for demodulating the TB from the upstream data
Channel information, which is demodulated from the upstream data based on maximum-ratio combing criterion.
Optionally, the processing module 63 is specifically used for：
Based on serial interference elimination principle, in the channel information determined according to the determining module 62 channel magnitude by
Small sequence is arrived greatly, and successively according to each channel information, the corresponding TB of the channel information is demodulated from the upstream data.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of device (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of method for transmitting signals, which is characterized in that this method includes：
User terminal determines multiple respective transmission power levels of transmission block TB；Wherein, the number of the multiple TB is more than the use
The number of antennas of family terminal；
The user terminal sends the corresponding demodulated reference signals of the TB according to the transmission power level of determining each TB, wherein
The transmission running time-frequency resource and/or code resource of the corresponding demodulated reference signal of different TB are different；And
According to the transmission power level of determining each TB, the upstream data after being overlapped each TB is determined, and described in transmission
Upstream data；
Wherein, the user terminal determines the respective transmission power levels of multiple TB, including：
The user terminal determines the respective transmission power levels of multiple TB according to the MCS grades of each TB；
Wherein, the user terminal determines the respective transmission power levels of multiple TB according to the MCS grades of each TB, including：
The user terminal determines the sum of the message transmission rate for making N number of TBMaximum one group of transmission power level；It wherein, will be N number of
The message transmission rate of k-th of TB after TB sorts according to the sequence of MCS grades from high to low
The sum of the transmission power level of each TBPtotFor the maximum transmission power of the user terminal, M is described in reception
The number of base stations for the upstream data that user terminal is sent, PkFor the transmission power level of k-th of TB, PiFor the transmission power of i-th of TB
Value, αbFor the channel energy between the user terminal and b-th of base station；User terminal kth is received for b-th of base station
The sum of amplitude error caused by reception noise and error vector magnitude EVM when a TB are distinguished；
The user terminal selects transmission power from this group of transmission power level according to the MCS grades of each TB for each TB
Value.
2. the method as described in claim 1, which is characterized in that the user terminal determines the respective transmission power levels of multiple TB
Before, further include：
The user terminal receives the Downlink Control Information that base station issues；The Downlink Control Information includes the upstream data packet
The tune of the running time-frequency resource of the TB number, each demodulated reference signal that include, the sequence information of each demodulated reference signal and each TB of uplink
System and coding strategy MCS information.
3. a kind of method for transmitting signals, which is characterized in that this method includes：
Base station receives the upstream data after being superimposed by multiple TB, and the corresponding demodulated reference signals of each TB；Wherein, described more
The number of a TB is more than the number of antennas for the user terminal for sending the upstream data, the corresponding demodulated reference signal of different TB
It transmits running time-frequency resource and/or code resource is different；
The base station is determined according to the corresponding demodulated reference signals of each TB of reception for being demodulated from the upstream data
The channel information of the TB；
Wherein, user terminal sends the corresponding demodulated reference signals of the TB according to the transmission power level of determining each TB；
Wherein, user terminal determines the sum of the message transmission rate for making N number of TBMaximum one group of transmission power level；It wherein, will be N number of
The message transmission rate of k-th of TB after TB sorts according to the sequence of MCS grades from high to low
The sum of the transmission power level of each TBPtotFor the maximum transmission power of the user terminal, M is to receive the use
The number of base stations for the upstream data that family terminal is sent, PkFor the transmission power level of k-th of TB, PiFor the transmission power of i-th of TB
Value, αbFor the channel energy between the user terminal and b-th of base station；User terminal kth is received for b-th of base station
The sum of amplitude error caused by reception noise and error vector magnitude EVM when a TB are distinguished；
User terminal selects transmission power level from this group of transmission power level according to the MCS grades of each TB for each TB.
4. method as claimed in claim 3, which is characterized in that the base station is according to the corresponding demodulation references of each TB of reception
Signal is determined for after the channel information for demodulating the TB in the upstream data, further including：
The base station is by the letter for demodulating the TB from the upstream data of the upstream data of reception and determination
Road information is sent to other base stations；Or,
The base station is according to the determining channel information for demodulating the TB from the upstream data, from the upstream data
In demodulate the TB.
5. method as claimed in claim 4, which is characterized in that the base station is according to determining for from the upstream data
The channel information for demodulating the TB demodulates the TB from the upstream data, including：
The channel information of upstream data, determination that the base station is received according to itself, and the other base stations received are sent
Upstream data and channel information for demodulating the TB from the upstream data, based on maximum-ratio combing criterion from described
The TB is demodulated in upstream data.
6. method as claimed in claim 4, which is characterized in that the base station is solved according to following steps from the upstream data
Recall each TB：
The base station is based on serial interference elimination principle, according to descending suitable of channel magnitude in the determining channel information
Sequence demodulates the corresponding TB of the channel information successively according to each channel information from the upstream data.
7. a kind of signal transmitting apparatus, which is characterized in that the device includes：
Determining module, for determining that user terminal needs the multiple respective transmission power levels of transmission block TB sent；Wherein, described
The number of multiple TB is more than the number of antennas of the user terminal；
Sending module, the transmission power level of each TB for being determined according to the determining module, sends the corresponding demodulation of the TB
Reference signal, wherein the transmission running time-frequency resource of the corresponding demodulated reference signals of difference TB and/or code resource are different；And
According to the transmission power level for each TB that the determining module determines, the upper line number after being overlapped each TB is determined
According to, and send the upstream data；
Wherein, the determining module is specifically used for：According to the MCS grades of each TB, the respective transmission power levels of multiple TB are determined；
Wherein, the determining module is specifically used for：
Determining makes the sum of the message transmission rate of N number of TBMaximum one group of transmission power level；Wherein, by N number of TB according to
The message transmission rate of k-th of TB after the sequence sequence of MCS grades from high to lowIt is each
The sum of transmission power level of TBPtotFor the maximum transmission power value of the user terminal, M is to receive the user
The number of base stations for the upstream data that terminal is sent, PkFor the transmission power level of k-th of TB, PiFor the transmission power level of i-th of TB,
αbFor the channel energy between the user terminal and b-th of base station；K-th of TB of user terminal is received for b-th of base station
When reception noise and error vector magnitude EVM distinguish caused by the sum of amplitude error；
According to the MCS grades of each TB, from this group of transmission power level, transmission power level is selected for each TB.
8. device as claimed in claim 7, which is characterized in that described device further includes：
Receiving module, the Downlink Control Information issued for receiving base station；The Downlink Control Information includes the upstream data
Including TB number, the running time-frequency resource of each demodulated reference signal, the sequence information of each demodulated reference signal and each TB of uplink
Modulation and coding strategy MCS information.
9. a kind of signal transmitting apparatus, which is characterized in that the device includes：
Receiving module, for receiving the upstream data after being superimposed by multiple TB, and the corresponding demodulated reference signals of each TB；Its
In, the number of the multiple TB is more than the number of antennas for the user terminal for sending the upstream data, the corresponding demodulation of different TB
The transmission running time-frequency resource and/or code resource of reference signal are different；
Determining module, for the corresponding demodulated reference signals of each TB that are received according to the receiving module, determination is for from institute
State the channel information that the TB is demodulated in upstream data；
Wherein, user terminal sends the corresponding demodulated reference signals of the TB according to the transmission power level of determining each TB；
Wherein, user terminal determines the sum of the message transmission rate for making N number of TBMaximum one group of transmission power level；It wherein, will be N number of
The message transmission rate of k-th of TB after TB sorts according to the sequence of MCS grades from high to low
The sum of the transmission power level of each TBPtotFor the maximum transmission power of the user terminal, M is described in reception
The number of base stations for the upstream data that user terminal is sent, PkFor the transmission power level of k-th of TB, PiFor the transmission power of i-th of TB
Value, αbFor the channel energy between the user terminal and b-th of base station；User terminal kth is received for b-th of base station
The sum of amplitude error caused by reception noise and error vector magnitude EVM when a TB are distinguished；
User terminal selects transmission power level from this group of transmission power level according to the MCS grades of each TB for each TB.
10. device as claimed in claim 9, which is characterized in that described device further includes：
Processing module, the upstream data for receiving the receiving module and the determining module determine for from
The channel information that the TB is demodulated in the upstream data is sent to other base stations；Or, for being used for from described according to determining
The channel information that the TB is demodulated in upstream data demodulates the TB from the upstream data.
11. device as claimed in claim 10, which is characterized in that the processing module is specifically used for：
The channel information and described connect that the upstream data that is received according to the receiving module, the determining module determine
The upstream data that other base stations that module receives are sent and the channel information for demodulating the TB from the upstream data are received,
The TB is demodulated from the upstream data based on maximum-ratio combing criterion.
12. device as claimed in claim 10, which is characterized in that the processing module is specifically used for：
Based on serial interference elimination principle, channel magnitude is descending in the channel information determined according to the determining module
Sequence the corresponding TB of the channel information is demodulated from the upstream data successively according to each channel information.
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| CN105744631B (en) * | 2016-04-25 | 2017-03-01 | 陕西师范大学 | The distribution method of multiple access system uplink downlink power and device |
| WO2018021951A1 (en) * | 2016-07-26 | 2018-02-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmitting radio equipment, receiving radio equipment and corresponding methods for communicating using a reference signal |
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