CN106160827A - A kind of multi-user information processing method and processing device - Google Patents
A kind of multi-user information processing method and processing device Download PDFInfo
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- CN106160827A CN106160827A CN201510192110.7A CN201510192110A CN106160827A CN 106160827 A CN106160827 A CN 106160827A CN 201510192110 A CN201510192110 A CN 201510192110A CN 106160827 A CN106160827 A CN 106160827A
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- H—ELECTRICITY
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Abstract
The invention discloses a kind of multi-user information processing method and processing device, improve systematic function.Described method, including: user profile is divided into i group, and often group comprises the user profile of n user, and described i is positive integer, and described n is positive integer and n >=2, respectively the user profile of n user in i group is carried out mixed processing, obtains i mixed signs；Described i mixed signs is done and is extended by sequence respectively that use i K length, obtains the symbol sebolic addressing of i K length, and described K is positive integer.Described device includes mixing module and expansion module.Using embodiment of the present invention method and apparatus, system obtains diversity gain, and terminal obtains more preferable SIC robustness；This external system can be dispatched with full bandwidth, simple and convenient.
Description
Technical field
The present invention relates to the communications field, espespecially a kind of multi-user information processing method and processing device.
Background technology
Design a multi-user wireless communication scheme, need to take into full account the propagation characteristic of wireless channel and letter
Interference between number, this is the most important factor obtaining high systematic function.Such as at multi-user's synchronization CDMA
In (CDMA) system, each user profile is made a distinction by spread spectrum code spread spectrum, first uses a length of K
Sequence spreading the data symbol after each digital modulation is extended, each modulated data symbol
Can be extended to the symbol sebolic addressing of K length, then, all be expanded rear symbol sebolic addressing can be when identical
Frequently send in resource.Sequence spreading length is the longest, and the low degree of association between sequence spreading is more easily guaranteed that,
As IS-95 uses Walsh (walsh sequence) code of 64, CDMA2000 uses longer spread spectrum
Code, obtains bigger power system capacity.Finally, what cdma receiver received is that all extension signals are folded
The conjunction signal being added together, the interference from other user as additive noise, by the extension sequence of oneself
Arrange by multiuser detection from closing the information isolating oneself signal.When number of users is more than 100%
During load, its performance drastically declines.
Being similar to synchronization CDMA this orthogonal multiplex mode, multi-user information can also by FDM (frequently
Point multiplexing), the multiplexing method broadcast such as OFDM (OFDM).Here broadcast refers to transmitter
After being stacked up by the modulation symbol of different user information, it is sent simultaneously to multiple receiver, different user
The information of oneself is extracted from the composite signal received.And having another is non-orthogonal multiplex mode,
NOMA (non-orthogonal multiple access) technology can meet bigger throughput of system.NOMA technology is
Use supercomposed coding in sending side, use interference to eliminate receiving side.Wherein " supercomposed coding " is by many
The modulation symbol of individual UE (subscriber equipment or title terminal) is in the direct superposition of power domain.What UE received is each
The superposition symbol that individual user symbol is superimposed, interferes between each user profile during demodulation,
Generally receiving terminal serial interference elimination to be done (Successive Interference Cancellation, SIC) point
From information.
Classical documents can reach many it was demonstrated that use non-orthogonal multiple multiplexing to combine code block level SIC technology
User profile capacity limitation.But due to code block level SIC can cause the highest implementation complexity, power consumption and time
Prolonging, these are unacceptable for terminal sometimes, so terminal is in the urgent need to simple symbol level SIC
(without reconstructing user symbol, it is achieved simple but performance damages), if AWGN is (Additive White
Gaussian Noise, additive Gaussian white noise) channel, is symbol level SIC during terminal demodulation the most basic
Can ensure that performance.
Under actual Mobile Fading Channels, when sending symbol and being at the channel that deeply declines, these are through deeply declining
After to translate the probability of mistake very big in single symbol receiving end, the superposition symbol after deeply declining does symbol level
SIC also has the biggest error propagation risk, thus causes access performance to decline.If using the narrowest
Band scheduling scheme overcomes this shortcoming, and the expense that arrowband can be made to dispatch again is the biggest.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of multi-user information processing method and processing device, improves
Systematic function.
In order to solve above-mentioned technical problem, the invention provides a kind of multi-user information processing method, including:
User profile is divided into i group, and often group comprises the user profile of n user, and described i is positive integer,
Described n is positive integer and n >=2, respectively the user profile of n user in i group is carried out mixed processing,
Obtain i mixed signs；
Described i mixed signs is done and is extended by sequence respectively that use i K length, obtains the symbol of i K length
Number sequence, described K is positive integer.
Further, described method also includes: is formed by the described symbol sebolic addressing obtaining i K length and launches
Signal, is sent to multiple users in i group.
Further, described method also includes: merges the symbol sebolic addressing of described i K length, is merged
After symbol sebolic addressing.
Further, described method also includes: is formed by the symbol sebolic addressing after described merging and launches signal,
It is sent to multiple user.
Further, described respectively the user profile of n user in i group is carried out mixed processing, including:
The user profile of n user in often group is mixed through the laggard row of ovennodulation；Or
The user profile of n user in often group is mixed before modulation；Or
The user profile of n user in often group is carried out logical operations before modulation, carries out again after modulation
Mixing.
Further, described by the user profile of n user in often group through the laggard row of ovennodulation mix,
Including: the user profile of n user in often group is obtained n user's modulation symbol through ovennodulation, will
Described n user's modulation symbol is added.
Further, the described user profile by n user in often group mixes before modulation, bag
Include: the user profile of n user in often group is mixed before modulation by the way of bit combination.
Further, the described user profile by n user in often group carries out logical operations before modulation,
Mix again after modulation, including: by often group the partial bit information of n user carry out logic fortune
After calculation, obtain n user's modulation symbol through ovennodulation, described n user's modulation symbol be added,
The mixed signs obtained after addition likely constellation point composition planisphere there is gray mappings attribute.
Further, described by often group the partial bit information of n user carry out logical operations, bag
Include: during n=2, the bit information of first user in often group and the partial bit information of the second user are carried out different
Or computing, operation result, as a part for second new user's bit information, does not carries out logical operations
The partial bit information of the second user is as another part of second new user's bit information.
Further, the described long sequence of i K meets one or more in following condition:
The described long sequence of i K includes sequence of real numbers and/or sequence of complex numbers；
The described long sequence of i K is identical or different；
Described i K long sequence orthogonal sequence each other or non-orthogonal sequences.
Further, described formation by symbol sebolic addressing launches signal, including:
Being mapped on running time-frequency resource by described symbol sebolic addressing, described running time-frequency resource includes same time domain resource pair
The multiple frequency domain resource answered, or, the same frequency domain resource that multiple different time domain resources are corresponding, or,
Multiple frequency domain resource that multiple different time domain resources are corresponding.
Further, when described running time-frequency resource includes multiple frequency domain resource corresponding to same time domain resource, will
Described symbol sebolic addressing continuous bandwidth on frequency domain is placed, or is scattered in the placement of whole frequency band.
In order to solve above-mentioned technical problem, the present invention also provides for a kind of multi-user information processing means, including
Mixing module and expansion module, wherein:
Described mixing module, for user profile is divided into i group, often group comprises the user profile of n user,
Described i is positive integer, and described n is positive integer and n >=2, believes the user of n user in i group respectively
Breath carries out mixed processing, obtains i mixed signs；
Described expansion module, extends for using the sequence of i K length to do described i mixed signs respectively,
Obtaining the symbol sebolic addressing of i K length, described K is positive integer.
Further, described device also includes transmitter module, for by the described symbol obtaining i K length
Sequence is formed launches signal, is sent to multiple users in i group.
Further, described device also includes merging module, for merging the symbol sequence of described i K length
Row, the symbol sebolic addressing after being merged.
Further, described device also includes transmitter module, for by the symbol sebolic addressing shape after described merging
Become to launch signal, be sent to multiple user.
Further, the user profile of n user in i group is carried out at mixing by described mixing module respectively
Reason, including:
The user profile of n user in often group is mixed by described mixing module through the laggard row of ovennodulation；Or
Person
The user profile of n user in often group is mixed by described mixing module before modulation；Or
The user profile of n user in often group is carried out logical operations by described mixing module before modulation,
Mix again after modulation.
Further, described mixing module is by laggard through ovennodulation for the user profile of n user in often group
Row mixing, including: the user profile of n user in often group is obtained n through ovennodulation by described mixing module
Individual user's modulation symbol, is added described n user's modulation symbol.
Further, the user profile of n user in often group is carried out by described mixing module before modulation
Mixing, including: described mixing module the user profile of n user in often group passed through before modulation than
The mode of special combination mixes.
Further, the user profile of n user in often group is carried out by described mixing module before modulation
Logical operations, mixes after modulation again, including: described mixing module is by the portion of n user in often group
Point bit information carry out logical operations after, obtain n user's modulation symbol through ovennodulation, by described n
Individual user's modulation symbol is added, the mixed signs obtained after addition likely constellation point composition
Planisphere has gray mappings attribute.
Further, described mixing module by often group the partial bit information of n user carry out logic
Computing, including: during n=2, described mixing module is by the bit information of first user in often group and the second user
Partial bit information carry out XOR, operation result is as one of second new user's bit information
Point, do not carry out the partial bit information of the second user of logical operations as second new user's bit information
Another part.
Further, the described long sequence of i K meets one or more in following condition:
The described long sequence of i K includes sequence of real numbers and/or sequence of complex numbers；
The described long sequence of i K is identical or different；
Described i K long sequence orthogonal sequence each other or non-orthogonal sequences.
Further, symbol sebolic addressing is formed by described sending module launches signal, including:
Described symbol sebolic addressing is mapped on running time-frequency resource by described sending module, and described running time-frequency resource includes same
Multiple frequency domain resource that one time-domain resource is corresponding, or, the same frequency domain that multiple different time domain resources are corresponding
Resource, or, multiple frequency domain resource that multiple different time domain resources are corresponding.
Further, when described running time-frequency resource includes multiple frequency domain resource corresponding to same time domain resource, institute
State sending module described symbol sebolic addressing continuous bandwidth on frequency domain to be placed, or be scattered in the placement of whole frequency band.
The embodiment of the present invention is by obtaining time-frequency domain diversity gain, at least to solve to mix to mixed signs extension
Close symbol descending send time, the single symbol receiving end under actual fading channel, after deeply declining
The probability translating mistake is very big, and after deeply declining and symbol is symbol level SIC and also has the biggest error biography
Broadcast risk, thus cause access performance to decline this problem.To sum up, the advantage of the embodiment of the present invention includes:
System obtains diversity gain, and terminal obtains more preferable SIC robustness；System can be dispatched with full bandwidth, letter
Folk prescription is just.
Other features and advantages of the present invention will illustrate in the following description, and, partly from froming the perspective of
Bright book becomes apparent, or understands by implementing the present invention.The purpose of the present invention is excellent with other
Point can be realized by structure specifically noted in description, claims and accompanying drawing and be obtained.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by technical solution of the present invention, and constitutes one of description
Point, it is used for explaining technical scheme together with embodiments herein, is not intended that the present invention
The restriction of technical scheme.
Fig. 1 is the embodiment of the present invention 1 flow chart；
Fig. 2 is the embodiment of the present invention 2 apparatus structure schematic diagram；
Fig. 3 is application example 1 multi-user information processing procedure figure at transmitter；
Fig. 4 is application example 1QPSK symbol and the schematic diagram of the direct superposition of 16QAM symbol；
Fig. 5 is the spreading procedure figure of application example 1 mixed signs；
Fig. 6 is application example 2 multi-user information processing procedure figure at transmitter；
Fig. 7 is application example 2 bit information constitutional diagram；
Fig. 8 is application example 3 multi-user information processing procedure at transmitter.
Detailed description of the invention
Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that
In the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Further,
Can be in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing
Middle execution, and, although show logical order in flow charts, but in some cases, permissible
To be different from the step shown or described by order execution herein.
Embodiment 1
The present embodiment describes a kind of multi-user information processing method, as it is shown in figure 1, include:
Step 110, is divided into i group by user profile, and often group comprises the user profile of n user, described i
For positive integer (i.e. i >=1), described n is positive integer and n >=2, respectively to n user's in i group
User profile carries out mixed processing, obtains i mixed signs；
Alternatively, above-mentioned respectively the user profile of n user in i group is carried out mixed processing, can adopt
One of with the following methods:
Mode one, mixes the user profile of n user in often group through the laggard row of ovennodulation；
Specifically, the user profile of n user in often group is obtained n user through ovennodulation and modulate symbol
Number, described n user's modulation symbol is added.
Mode two, mixes before modulation by the user profile of n user in often group；
Specifically, by the user profile of n user in often group before modulation by the way of bit combination
Mix.The mixed signs obtained after addition likely constellation point composition planisphere there is Gray
Attribute mapping.
Mode three, carries out logical operations before modulation by the user profile of n user in often group, modulation
After mix again.
Specifically, by often group the partial bit information of n user carry out logical operations after, through toning
Prepare n user's modulation symbol, described n user's modulation symbol is added, obtains after addition
Mixed signs likely constellation point composition planisphere there is gray mappings attribute.
Such as, as n=2, by the bit information of first user in often group and the partial bit of the second user
Information carries out XOR, and operation result, as a part for second new user's bit information, is not carried out
The partial bit information of the second user of logical operations is as another portion of second new user's bit information
Point.
The mixed signs obtained after this step comprises the information of multiple user, and other user profile are relative to basis
For interference information for user profile.
Step 120, uses the sequence of i K length to do described i mixed signs respectively and extends, obtain i
The symbol sebolic addressing of individual K length, described K is positive integer.
Alternatively, the described long sequence of i K meets one or more in following condition: described i K
Long sequence includes sequence of real numbers and/or sequence of complex numbers；The described long sequence of i K is identical or different；Described i
Individual K long sequence orthogonal sequence each other or non-orthogonal sequences.Wherein i=K or i ≠ K.
Mixed signs is by after the long sequence extension of K, and the symbol after the extension obtained is a K long symbol sequence,
The information of multiple users is all extended in K symbol.
In one embodiment, as i=1, when the most only one group, said method also includes
Step 130: the described symbol sebolic addressing obtaining i K length is formed and launches signal, be sent in i group
Multiple users.
In another embodiment, as i ＞ 1, when i.e. having more than two, described method also includes:
Step 130 ', merge the symbol sebolic addressing of described i K length, the symbol sebolic addressing after being merged；
When needs are launched, it is also possible to including: step 140, the symbol sebolic addressing after described merging is formed and sends out
Penetrate signal, be sent to multiple user.
In above-mentioned step of transmitting (step 130 or step 140), it is that described symbol sebolic addressing is mapped to time-frequency
In resource, described running time-frequency resource includes multiple frequency domain resource that same time domain resource is corresponding, or, multiple
The same frequency domain resource that different time domain resource is corresponding, or, multiple frequencies that multiple different time domain resources are corresponding
Territory resource.When described running time-frequency resource includes multiple frequency domain resource corresponding to same time domain resource, can be by
Described symbol sebolic addressing continuous bandwidth on frequency domain is placed, or is scattered in the placement of whole frequency band.The most multiple users
Information can be placed in the frequency domain resource of wider time-domain resource or wider transmission.
In the mixed signs extension sending method that the embodiment of the present invention provides, mixed signs is by the sequence of K length
Do and extend, the symbol after being expanded, after symbol after extension is merged, the symbol after being merged,
Symbol after merging is formed transmitting signal.Using the embodiment of the present invention, system can obtain diversity gain,
Terminal obtains more preferable SIC robustness, and additionally system can be dispatched with full bandwidth, simple and convenient.
Embodiment 2
The present embodiment describes a kind of multi-user information processing means realizing above-described embodiment 1 method, such as Fig. 2
Shown in, including mixing module and expansion module, wherein:
Described mixing module, for user profile is divided into i group, often group comprises the user profile of n user,
Described i is positive integer, and described n is positive integer and n >=2, believes the user of n user in i group respectively
Breath carries out mixed processing, obtains i mixed signs；
Described expansion module, extends for using the sequence of i K length to do described i mixed signs respectively,
Obtaining the symbol sebolic addressing of i K length, described K is positive integer.
When only 1 group, in one embodiment, described device also includes transmitter module, for by institute
State the symbol sebolic addressing formation transmitting signal obtaining i K length, be sent to multiple users in i group.
When there being more than 2 groups, in another embodiment, described device also includes merging module, is used for
Merge the symbol sebolic addressing of described i K length, the symbol sebolic addressing after being merged.
Alternatively, described device also includes transmitter module, for being formed by the symbol sebolic addressing after described merging
Launch signal, be sent to multiple user.
Above-mentioned mixing module carries out mixed processing to the user profile of n user in i group respectively, can use
One of in the following manner:
The user profile of n user in often group is mixed by described mixing module through the laggard row of ovennodulation；
The user profile of n user in often group is mixed by described mixing module before modulation；
The user profile of n user in often group is carried out logical operations by described mixing module before modulation,
Mix again after modulation.
Concrete how mixing sees described in embodiment 1.
Symbol sebolic addressing is formed by above-mentioned sending module launches signal, including: described sending module is by described symbol
Number sequence mapping is on running time-frequency resource, and described running time-frequency resource includes multiple frequency domains that same time domain resource is corresponding
Resource, or, the same frequency domain resource that multiple different time domain resources are corresponding, or, multiple different time domain
Multiple frequency domain resource that resource is corresponding.Alternatively, include that same time domain resource is corresponding when described running time-frequency resource
Multiple frequency domain resource time, described sending module by described symbol sebolic addressing on frequency domain continuous bandwidth place,
Or it is scattered in the placement of whole frequency band.
For emphasizing the characteristic in the present invention, below preferably typical case's application example the embodiment of the present invention is done into one
Step explanation.In present example, the UE in different groups individually numbers, such as in Fig. 3 in first group UE1 and
In 4th group, UE1 is different UE, and in first group, in UE2 and the 4th group, UE2 is also different UE.
Application example 1
Use 4 sequences respectively 4 mixed signs to be done to extend, obtain the symbol after 4 groups of extensions, close
And 4 groups extension after symbol is merged after symbol, transmitter after described merging symbol formed
Penetrate signal, be sent to a receiver.It is the multi-user information processing procedure at transmitter as shown in Figure 3.
As it is shown on figure 3, by all user profile coded modulation in each group, and distribute certain power, raw
Become there is user's modulation symbol of certain power, after mixing, obtain mixed signs, mixed signs is expanded
Symbol after being expanded after exhibition, the symbol after being merged after the symbol merging after extension, will merge
After symbol formed launch signal send.Each group includes two or more user profile, this example
Only by one group include two user profile as a example by illustrate.Group number can be one or more, this
Example is to illustrate as a example by 4 by group number.Comprise the following steps:
Step 1, the UE1 bit information of first group is encoded, modulation after distributing certain power,
Obtain the user modulation symbol S11 with certain power.The UE2 bit information of first group is encoded,
After modulating and distributing certain power, obtain the user modulation symbol S12 with certain power.
Step 2, obtains mixed signs after S11 and S12 mixing.S11 and S12 mixing can be directly by two
Individual symbol is added and obtains, and is expressed as S11+S12.It is a QPSK (QPSK) as shown in Figure 4
The schematic diagram that symbol and 16QAM (quadrature amplitude modulation) symbol are directly added.In figure shown in black
Data are to take two kinds of concrete condition examples at random to be illustrated, the first: the QPSK symbol at " 01 " place
The 16QAM symbol at " 1111 " place is directly added, and obtains the symbol at " 011111 " place.The second:
The 16QAM symbol at the QPSK symbol at " 11 " place and " 0111 " place is directly added, and obtains " 110111 "
The symbol at place.
Step 3, is extended mixed signs, and extension can be DSSS, it is also possible to be frequency hopping
Spread spectrum, further, it is also possible to be the extension in time domain.
Direct sequence spreading can realize in the following way: after 4 mixed signs all obtain, and 4 groups are mixed
Close the sequence spreading sequence from 44 length in the sequence spreading set of default 4 × 4 of symbol use,
Here 4 long sequences refer to that this sequence is made up of 4 symbols, and this sequence spreading set can be such as one
The hadamard matrix of individual 4 × 4,1 row therein or string can be as sequences, and each sequence is long
Degree is 4.Often group uses the sequence spreading of 14 length therein, and each sequence spreading is the most different.
The purpose using sequence spreading to be extended mixed signs is so that the symbol after Kuo Zhan is permissible
Widely it is sprinkled upon on running time-frequency resource.The not requirement of length K of sequence spreading.Sequence spreading can be real
Number Sequence can also be sequence of complex numbers, in sequence spreading set i sequence can be identical can also be not
With, if i sequence in sequence spreading set is different, this i sequence can the most orthogonal sequence
Row or non-orthogonal sequences.
One modulation symbol can be extended to the symbol sebolic addressing of one 4 length by sequence spreading.As it is shown in figure 5,
Often group mixed signs is extended processing by a sequence, generates the symbol sebolic addressing after extension.Such as, one
{ C11, C12, C13, C14} are by one group of mixed signs { S for bar sequence spreadingH1Extension, mixed signs and
The sequence spreading of one 4 length is multiplied, i.e. { C11, C12, C13, C14}*{SH1, obtain another 4
Long symbol sebolic addressing { the C11*S after extensionH1, C12*SH1, C13*SH1, C14*SH1}.Mixed signs
After being expanded, the information of this mixed signs or power are assigned in 4 symbols, in other words, and mixing symbol
Number it is carried on the sequence spreading of one 4 length.
4 groups of mixed signs are all expanded, the symbol after being expanded, sequence spreading C21, C22,
C23, C24} are by one group of mixed signs { SH2Extension, mixed signs is multiplied with the sequence spreading of one 4 length,
I.e. { C21, C22, C23, C24}*{SH2, obtain the symbol sebolic addressing after another 4 long extension
{C21*SH2, C22*SH2, C23*SH2, C24*SH2}；Article one, sequence spreading C31, C32, C33,
C34} is by one group of mixed signs { SH3Extension, mixed signs is multiplied, i.e. with the sequence spreading of one 4 length
{ C31, C32, C33, C34}*{SH3, obtain the symbol sebolic addressing { C31*S after another 4 long extensionH3,
C32*SH3, C33*SH3, C34*SH3}；Article one, { C41, C42, C43, C44} are by one group for sequence spreading
Mixed signs { SH4Extension, mixed signs is multiplied with the sequence spreading of one 4 length, i.e. C41, C42,
C43, C44}*{SH4, obtain the symbol sebolic addressing { C41*S after another 4 long extensionH4, C42*SH4,
C43*SH4, C44*SH4}。
Step 4, merges the symbol sebolic addressing after extension, the symbol sebolic addressing after being merged.Described merging includes
Symbol sebolic addressing correspondence after extending 4 groups is added, and the symbol after the most described merging comprises 4 groups of mixed signs
Information, be represented by { C11*SH1+C21*SH2+C31*SH3+C41*SH4,
C12*SH1+C22*SH2+C32*SH3+C42*SH4, C13*SH1+C23*SH2+C33*SH3+C43*SH4,
C14*SH1+C24*SH2+C34*SH3+C44*SH4}。
Step 5, the symbol sebolic addressing after last transmitter (such as base station) will merge forms transmitting signal, issues
Multiple UE.Symbol after merging is mapped on running time-frequency resource, and described running time-frequency resource includes that same time domain provides
Multiple frequency domain resource (multiple frequencies of such as synchronization) that source is corresponding, or multiple different time domain money
The same frequency domain resource (the same frequencies in the most multiple moment) that source is corresponding, or multiple different time domain money
Multiple frequency domain resource (multiple frequencies in the most multiple moment) that source is corresponding.If same time domain resource
Corresponding multiple frequency domain resource, then the symbol after merging can be placed with continuous bandwidth on frequency domain, it is also possible to
It is scattered in whole frequency band to place.When the information of 4 groups of mixed signs sends on identical running time-frequency resource,
If i the sequence orthogonal sequence each other in the frequency expansion sequence set of DSSS will obtain
Preferably effect.
Application example 2
Use 4 sequences respectively 4 mixed signs to be done to extend, obtain the symbol after 4 groups of extensions, close
And 4 groups extension after symbol is merged after symbol, transmitter after described merging symbol formed
Penetrate signal, be sent to a receiver.It is the multi-user information processing procedure at transmitter as shown in Figure 6.
As shown in Figure 6, code word bits will be obtained after all user profile coding in each group, will institute in group
After having the bit information combination of user, distribute certain power and modulation obtains mixed signs, by mixed signs
Symbol after being expanded after extension, the symbol after being merged after the symbol merging after extension, will close
Symbol after and is formed launches signal transmission.Each group includes two or more user profile, this
Example only by one group include two user profile as a example by illustrate.Group number can be one or more,
This example is to illustrate as a example by 4 by group number.Comprise the following steps:
Step 1, obtains code word bits b after the UE1 bit information of first group is encoded5b4, first group
UE2 bit information encoded after obtain code word bits b3b2b1b0, by the bit information group of two users
Closing, two user's bit informations merge together in other words, are combined into one group of bit b5b4b3b2b1b0.Distribution
Certain power is also modulated, and obtains mixed signs.Mixed signs in this example is the combination of multi-user's bit information
After modulation symbol.In this example, the code word bits of UE1 is only for example with the code word bits figure place of UE2.
Unlike application example 1, in group, the information of user is directly added mixed not by modulation symbol
It is combined, but mixes by the way of bit combination.As a example by two groups of bit combinations, can
To be set to high order bit by one group, another group is set to low-order bit, such as by the UE1 code word ratio of dibit
Special and 4 bits UE2 code word bits become one group of 6 bit after combining, and wherein the code word bits of UE1 is
High order bit, the code word bits of UE2 is low-order bit.
It is one group of dibit and one group of 4 bit combination the schematic diagram modulated as shown in Figure 7.Black in figure
Shown data are to take two kinds of concrete condition examples at random to be illustrated, the first: UE1 bit information " 01 "
Merge with UE2 bit information " 0111 ", obtain one group of bit " 010111 "；The second: UE1 ratio
Special information " 11 " and UE2 bit information " 0111 " merge, and obtain one group of bit " 110111 ".Point
Not by bit group " 010111 " and bit group " 110111 " map modulation to planisphere, by that analogy,
Mixed signs likely constellation point composition planisphere there is gray mappings attribute.
Step 2, is extended mixed signs, illustrates in this example as a example by using direct sequence spreading.
After 4 groups of mixed signs all obtain, the sequence spreading of 4 groups of mixed signs uses is from default 4 × 4
The sequence of 44 length in sequence spreading set, 4 long sequences refer to that this sequence is by 4 symbols here
Constitute, this sequence spreading set can be such as the hadamard matrix of 4 × 4,1 row therein or
String can be as a sequence, and each sequence length is 4.Often group uses the extension of 14 length therein
Sequence, each sequence spreading is the most different.
The not requirement of length K of sequence spreading.Sequence spreading can be sequence of real numbers can also be plural number sequence
Row, in sequence spreading set i sequence can be identical can also be different, if sequence spreading collection
I sequence in conjunction is different, and this i sequence can orthogonal sequence or non-orthogonal sequences each other.
One modulation symbol can be extended to the symbol sebolic addressing of one 4 length by sequence spreading.Often group mixing symbol
Number with a sequence be extended process, generate extension after symbol sebolic addressing.Such as, a sequence spreading
{ C11, C12, C13, C14} are by one group of mixed signs { SH1Extension, mixed signs and one 4 length
Sequence spreading is multiplied, i.e. { C11, C12, C13, C14}*{SH1, after obtaining another 4 long extension
Symbol sebolic addressing { C11*SH1, C12*SH1, C13*SH1, C14*SH1}.After mixed signs is expanded,
The information of this mixed signs or power are assigned in 4 symbols, and in other words, mixed signs is carried on one
On the sequence spreading that bar 4 is long.
4 groups of mixed signs are all expanded, the symbol after being expanded, sequence spreading C21, C22,
C23, C24} are by one group of mixed signs { SH2Extension, mixed signs is multiplied with the sequence spreading of one 4 length,
I.e. { C21, C22, C23, C24}*{SH2, obtain the symbol sebolic addressing after another 4 long extension
{C21*SH2, C22*SH2, C23*SH2, C24*SH2}；Article one, sequence spreading C31, C32, C33,
C34} is by one group of mixed signs { SH3Extension, mixed signs is multiplied, i.e. with the sequence spreading of one 4 length
{ C31, C32, C33, C34}*{SH3, obtain the symbol sebolic addressing { C31*S after another 4 long extensionH3,
C32*SH3, C33*SH3, C34*SH3}；Article one, { C41, C42, C43, C44} are by one group for sequence spreading
Mixed signs { SH4Extension, mixed signs is multiplied with the sequence spreading of one 4 length, i.e. C41, C42,
C43, C44}*{SH4, obtain the symbol sebolic addressing { C41*S after another 4 long extensionH4, C42*SH4,
C43*SH4, C44*SH4}。
Step 3, merges the symbol sebolic addressing after extension, the symbol sebolic addressing after being merged.Described merging includes
Symbol sebolic addressing correspondence after extending 4 groups is added, and the symbol after the most described merging comprises 4 groups of mixed signs
Information, be represented by { C11*SH1+C21*SH2+C31*SH3+C41*SH4,
C12*SH1+C22*SH2+C32*SH3+C42*SH4, C13*SH1+C23*SH2+C33*SH3+C43*SH4,
C14*SH1+C24*SH2+C34*SH3+C44*SH4}。
Step 4, the symbol sebolic addressing after last transmitter will merge forms transmitting signal, issues multiple UE.
Symbol after merging is mapped on running time-frequency resource, and described running time-frequency resource includes that same time domain resource is corresponding
Multiple frequency domain resource (multiple frequencies of such as synchronization), or multiple different time domain resource is corresponding
Same frequency domain resource (the same frequencies in the most multiple moment), or multiple different time domain resource is corresponding
Multiple frequency domain resource (multiple frequencies in the most multiple moment).If same time domain resource is corresponding many
Individual frequency domain resource, then the symbol after merging can be placed with continuous bandwidth on frequency domain, it is also possible to is scattered in whole
Individual frequency band is placed.When the information of 4 groups of mixed signs sends on identical running time-frequency resource, if be used for
I sequence orthogonal sequence each other in the frequency expansion sequence set of DSSS will obtain preferably effect
Really.
Application example 3
Use 4 sequences respectively 4 mixed signs to be done to extend, obtain the symbol after 4 groups of extensions, close
And 4 group extension after symbols is merged after symbol, transmitter after described merging symbol formation
Launch signal, be sent to a receiver.It is the multi-user information processing procedure at transmitter as shown in Figure 8.
As shown in Figure 8, code word bits, code word bits will be obtained after all user profile coding in each group
The most first carry out bit XOR, distribute certain power and modulation obtains mixed signs, will mixing
Symbol after being expanded after sign extended, the symbol after being merged after the symbol merging after extension,
Symbol after merging is formed launches signal transmission.Each group includes two or more user profile,
This example only by one group include two user profile as a example by illustrate.Group number can be one or more,
This example is to illustrate as a example by 4 by group number.Comprise the following steps:
Step 1, obtains code word bits b after the UE1 bit information of first group is encoded5b4, first group
UE2 bit information encoded after obtain code word bits b3b2b1b0, b5b4Directly obtained having one by modulation
Determine the modulation symbol of power, and b3b2b1b0First obtain new letter with first group of information bit through bit arithmetic
Breath bit B3B2B1B0After obtained, by modulation, the modulation symbol that has certain power again, modulation can be according to existing
The modulator approach that standard uses, such as: BPSK, QPSK, QAM.
The newest information bit is made up of two parts, and a part is by b3b2b1b0In specific 2 bits with
b5b4Both obtain in computing, and another part is kept constant obtaining by the bit in addition to above-mentioned specific bit.I.e.
New information bit B3B2B1B0Front two B3B2It is the front two b of first group of information code word bits5b4
Specific 2 bit b with in second group of information code word bits3b2XOR obtains, and then two by b3b2b1b0
In bit b in addition to above-mentioned specific bit1b0Keep constant obtaining.Except this kind of logical operations obtains new using
Outside the mode of family information, it is also possible to use other logical operations modes, if the institute of the mixed signs obtained
Likely the planisphere of constellation point composition has gray mappings attribute.
Unlike application example 1, in group, the information of user is directly added mixed not by modulation symbol
It is combined, but by bit arithmetic, after revising the bit information of UE2, the mode that re-modulation is added
Mix.Can reach similar very with mixed signs in application example 2 by this simple process
Good characteristic, i.e. likely constellation point composition planisphere there is gray mappings attribute.
Step 2, is extended mixed signs, illustrates in this example as a example by using direct sequence spreading.
After 4 groups of mixed signs all obtain, the sequence spreading of 4 groups of mixed signs uses is from default 4 × 4
The sequence of 44 length in sequence spreading set, 4 long sequences refer to that this sequence is by 4 symbols here
Constitute, this sequence spreading set can be such as the hadamard matrix of 4 × 4,1 row therein or
String can be as a sequence, and each sequence length is 4.Often group uses the extension of 14 length therein
Sequence, every sequence spreading is the most different.
The not requirement of length K of sequence spreading.Sequence spreading can be sequence of real numbers can also be plural number sequence
Row, in sequence spreading set i sequence can be identical can also be different, if sequence spreading collection
I sequence in conjunction is different, and this i sequence can orthogonal sequence or non-orthogonal sequences each other.
One modulation symbol can be extended to the symbol sebolic addressing of one 4 length by sequence spreading.Often group mixing symbol
Number with a sequence be extended process, generate extension after symbol sebolic addressing.Such as, a sequence spreading
{ C11, C12, C13, C14} are by one group of mixed signs { SH1Extension, mixed signs and one 4 length
Sequence spreading is multiplied, i.e. { C11, C12, C13, C14}*{SH1, after obtaining another 4 long extension
Symbol sebolic addressing { C11*SH1, C12*SH1, C13*SH1, C14*SH1}.After mixed signs is expanded,
The information of this mixed signs or power are assigned in 4 symbols, and in other words, mixed signs is carried on one
On the sequence spreading that bar 4 is long.
4 groups of mixed signs are all expanded, the symbol after being expanded, sequence spreading C21, C22,
C23, C24} are by one group of mixed signs { SH2Extension, mixed signs is multiplied with the sequence spreading of one 4 length,
I.e. { C21, C22, C23, C24}*{SH2, obtain the symbol sebolic addressing after another 4 long extension
{C21*SH2, C22*SH2, C23*SH2, C24*SH2}；Article one, sequence spreading C31, C32, C33,
C34} is by one group of mixed signs { SH3Extension, mixed signs is multiplied, i.e. with the sequence spreading of one 4 length
{ C31, C32, C33, C34}*{SH3, obtain the symbol sebolic addressing { C31*S after another 4 long extensionH3,
C32*SH3, C33*SH3, C34*SH3}；Article one, { C41, C42, C43, C44} are by one group for sequence spreading
Mixed signs { SH4Extension, mixed signs is multiplied with the sequence spreading of one 4 length, i.e. C41, C42,
C43, C44}*{SH4, obtain the symbol sebolic addressing { C41*S after another 4 long extensionH4, C42*SH4,
C43*SH4, C44*SH4}。
Step 3, merges the symbol sebolic addressing after extension, the symbol sebolic addressing after being merged.Described merging includes
Symbol sebolic addressing correspondence after 4 groups of extensions is added, and the symbol after the most described merging comprises the letter of 4 groups of mixed signs
Breath, is represented by { C11*SH1+C21*SH2+C31*SH3+C41*SH4,
C12*SH1+C22*SH2+C32*SH3+C42*SH4, C13*SH1+C23*SH2+C33*SH3+C43*SH4,
C14*SH1+C24*SH2+C34*SH3+C44*SH4}。
Step 4, the symbol sebolic addressing after last transmitter will merge forms transmitting signal, issues multiple UE.
Symbol after merging is mapped on running time-frequency resource, and described running time-frequency resource includes that same time domain resource is corresponding
Multiple frequency domain resource (multiple frequencies of such as synchronization), or multiple different time domain resource is corresponding
Same frequency domain resource (the same frequencies in the most multiple moment), or multiple different time domain resource is corresponding
Multiple frequency domain resource (multiple frequencies in the most multiple moment).If same time domain resource is corresponding many
Individual frequency domain resource, then the symbol after merging can be placed with continuous bandwidth on frequency domain, it is also possible to is scattered in whole
Individual frequency band is placed.When the information of 4 groups of mixed signs sends on identical running time-frequency resource, if be used for
I sequence orthogonal sequence each other in the frequency expansion sequence set of DSSS will obtain preferably effect
Really.
One of ordinary skill in the art will appreciate that all or part of step in said method can pass through program
Instructing related hardware to complete, described program can be stored in computer-readable recording medium, as read-only
Memorizer, disk or CD etc..Alternatively, all or part of step of above-described embodiment can also use
One or more integrated circuits realize.Correspondingly, each module/unit in above-described embodiment can use
The form of hardware realizes, it would however also be possible to employ the form of software function module realizes.
Although the embodiment that disclosed herein is as above, but described content only readily appreciates the present invention
And the embodiment used, it is not limited to the present invention.Technology people in any art of the present invention
Member, on the premise of without departing from the spirit and scope that disclosed herein, can be in the form implemented and thin
Any amendment and change is carried out on joint, but the scope of patent protection of the present invention, still must be with appended right
Claim is defined in the range of standard.
Claims (24)
1. a multi-user information processing method, it is characterised in that including:
User profile is divided into i group, and often group comprises the user profile of n user, and described i is positive integer,
Described n is positive integer and n >=2, respectively the user profile of n user in i group is carried out mixed processing,
Obtain i mixed signs；
Described i mixed signs is done and is extended by sequence respectively that use i K length, obtains the symbol of i K length
Number sequence, described K is positive integer.
Method the most according to claim 1, it is characterised in that described method also includes: by described
The symbol sebolic addressing obtaining i K length forms transmitting signal, is sent to multiple users in i group.
Method the most according to claim 1, it is characterised in that described method also includes: merge institute
State the symbol sebolic addressing of i K length, the symbol sebolic addressing after being merged.
Method the most according to claim 2, it is characterised in that described method also includes: by described
Symbol sebolic addressing after merging is formed launches signal, is sent to multiple user.
5. according to the method described in any claim in claim 1-4, it is characterised in that described point
The other user profile to n user in i group carries out mixed processing, including:
The user profile of n user in often group is mixed through the laggard row of ovennodulation；Or
The user profile of n user in often group is mixed before modulation；Or
The user profile of n user in often group is carried out logical operations before modulation, carries out again after modulation
Mixing.
Method the most according to claim 5, it is characterised in that described by n user in often group
User profile through the laggard row of ovennodulation mix, including: by the user profile warp of n user in often group
Ovennodulation obtains n user's modulation symbol, is added by described n user's modulation symbol.
Method the most according to claim 5, it is characterised in that described by n user in often group
User profile mix before modulation, including: by the user profile of n user in often group adjust
Mix by the way of bit combination before Zhi.
Method the most according to claim 5, it is characterised in that described by n user in often group
User profile carry out logical operations before modulation, mix again after modulation, including: will every n in group
The partial bit information of individual user carry out logical operations after, obtain n user's modulation symbol through ovennodulation,
Described n user's modulation symbol is added, institute's likely constellation of the mixed signs obtained after addition
The planisphere of some composition has gray mappings attribute.
Method the most according to claim 8, it is characterised in that described by n user in often group
Partial bit information carry out logical operations, including: during n=2, by the bit information of first user in often group
Carrying out XOR with the partial bit information of the second user, operation result is as second new user's bit
A part for information, does not carries out the partial bit information of the second user of logical operations as the second new use
Another part of family bit information.
10. according to claim 1-4, method described in any claim in 6-9, it is characterised in that institute
State i the long sequence of K and meet one or more in following condition:
The described long sequence of i K includes sequence of real numbers and/or sequence of complex numbers；
The described long sequence of i K is identical or different；
Described i K long sequence orthogonal sequence each other or non-orthogonal sequences.
11. according to the method described in claim 2 or 4, it is characterised in that described by symbol sebolic addressing shape
Become to launch signal, including:
Being mapped on running time-frequency resource by described symbol sebolic addressing, described running time-frequency resource includes same time domain resource pair
The multiple frequency domain resource answered, or, the same frequency domain resource that multiple different time domain resources are corresponding, or,
Multiple frequency domain resource that multiple different time domain resources are corresponding.
12. methods according to claim 11, it is characterised in that described running time-frequency resource includes same
During multiple frequency domain resource corresponding to time-domain resource, described symbol sebolic addressing continuous bandwidth on frequency domain is placed,
Or it is scattered in the placement of whole frequency band.
13. 1 kinds of multi-user information processing meanss, it is characterised in that include mixing module and expansion module,
Wherein:
Described mixing module, for user profile is divided into i group, often group comprises the user profile of n user,
Described i is positive integer, and described n is positive integer and n >=2, believes the user of n user in i group respectively
Breath carries out mixed processing, obtains i mixed signs；
Described expansion module, extends for using the sequence of i K length to do described i mixed signs respectively,
Obtaining the symbol sebolic addressing of i K length, described K is positive integer.
14. devices according to claim 13, it is characterised in that described device also includes launching mould
Block, launches signal for being formed by the described symbol sebolic addressing obtaining i K length, is sent to multiple use in i group
Family.
15. devices according to claim 13, it is characterised in that described device also includes merging mould
Block, for merging the symbol sebolic addressing of described i K length, the symbol sebolic addressing after being merged.
16. devices according to claim 15, it is characterised in that described device also includes launching mould
Block, launches signal for being formed by the symbol sebolic addressing after described merging, is sent to multiple user.
17. according to the device described in any claim in claim 13-16, it is characterised in that described
Mixing module carries out mixed processing to the user profile of n user in i group respectively, including:
The user profile of n user in often group is mixed by described mixing module through the laggard row of ovennodulation；Or
Person
The user profile of n user in often group is mixed by described mixing module before modulation；Or
The user profile of n user in often group is carried out logical operations by described mixing module before modulation,
Mix again after modulation.
18. devices according to claim 17, it is characterised in that described mixing module will be often in group
The user profile of n user mix through the laggard row of ovennodulation, will be often in group including: described mixing module
The user profile of n user obtain n user's modulation symbol through ovennodulation, described n user is adjusted
Symbol processed is added.
19. devices according to claim 17, it is characterised in that described mixing module will be often in group
The user profile of n user mix before modulation, including: described mixing module is by the n in often group
The user profile of individual user mixes before modulation by the way of bit combination.
20. devices according to claim 17, it is characterised in that described mixing module will be often in group
The user profile of n user carry out logical operations before modulation, mix again after modulation, including:
Described mixing module by often group the partial bit information of n user carry out logical operations after, through toning
Prepare n user's modulation symbol, described n user's modulation symbol is added, obtains after addition
Mixed signs likely constellation point composition planisphere there is gray mappings attribute.
21. devices according to claim 20, it is characterised in that described mixing module will be often in group
The partial bit information of n user carry out logical operations, including: during n=2, described mixing module will be every
In group, the bit information of first user and the partial bit information of the second user carry out XOR, and computing is tied
Fruit, as a part for second new user's bit information, does not carries out the part of the second user of logical operations
Bit information is as another part of second new user's bit information.
22. according to claim 13-16, device described in any claim in 18-21, it is characterised in that
The described long sequence of i K meets one or more in following condition:
The described long sequence of i K includes sequence of real numbers and/or sequence of complex numbers；
The described long sequence of i K is identical or different；
Described i K long sequence orthogonal sequence each other or non-orthogonal sequences.
23. according to the device described in claim 14 or 16, it is characterised in that described sending module will
Symbol sebolic addressing is formed launches signal, including:
Described symbol sebolic addressing is mapped on running time-frequency resource by described sending module, and described running time-frequency resource includes same
Multiple frequency domain resource that one time-domain resource is corresponding, or, the same frequency domain that multiple different time domain resources are corresponding
Resource, or, multiple frequency domain resource that multiple different time domain resources are corresponding.
24. devices according to claim 23, it is characterised in that described running time-frequency resource includes same
During multiple frequency domain resource corresponding to time-domain resource, described symbol sebolic addressing is connected on frequency domain by described sending module
Continuous bandwidth is placed, or is scattered in the placement of whole frequency band.
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| WO2024124573A1 (en) * | 2022-12-16 | 2024-06-20 | 华为技术有限公司 | Sequence transmission method and apparatus |
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