CN107425947A - Reference signal and the mapping method and equipment of multiple access access-in resource - Google Patents

Reference signal and the mapping method and equipment of multiple access access-in resource Download PDF

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Publication number
CN107425947A
CN107425947A CN201610350333.6A CN201610350333A CN107425947A CN 107425947 A CN107425947 A CN 107425947A CN 201610350333 A CN201610350333 A CN 201610350333A CN 107425947 A CN107425947 A CN 107425947A
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China
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resource
access
parameter
group
multiple access
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CN107425947B (en
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郝辰曦
钱辰
喻斌
付景兴
熊琦
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Beijing Samsung Telecom R&D Center
Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Priority to CN201610350333.6A priority Critical patent/CN107425947B/en
Priority to PCT/KR2017/005392 priority patent/WO2017204549A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving

Abstract

This application discloses a kind of reference signal and the mapping method of multiple access access-in resource, including：Determine reference signal used in transmitting uplink data；Multiple access access-in resource is determined according to the mapping relations between the reference signal and multiple access access-in resource；Communicated using the multiple access access-in resource.The above-mentioned mapping method of the application can also be applied to exempt from scheduling system, only need to be according to the targeting sequencing of selection, root sequence index, cyclic shift, OCC indexes and the COMB indexes for the reference signal that transmitting uplink data uses are mapped out by targeting sequencing by the rule of setting, then maps out multiple access access-in resource according to above-mentioned mapping method.Disclosed herein as well is a kind of reference signal and the mapped device of multiple access access-in resource.Using technical scheme disclosed in the present application, signaling consumption can be reduced.

Description

Reference signal and the mapping method and equipment of multiple access access-in resource
Technical field
The application is related to wireless communication technology field, more particularly to the reference signal of multiple access system provides with multiple access access The mapping method and equipment in source.
Background technology
With the fast development of information industry, especially from mobile Internet and Internet of Things (IoT, internet of Things increased requirement), unprecedented challenge is brought to future mobile.Such as according to International Telecommunication Union ITU Report ITU-R M. [IMT.BEYOND 2020.TRAFFIC], it is contemplated that to the year two thousand twenty, mobile service amount increases relative (the 4G epoch) in 2010 will increase nearly 1000 times, user equipment connection number also will more than 17,000,000,000, with magnanimity IoT equipment by Mobile communications network is gradually penetrated into, connection number of devices will be more surprising.In order to tackle this unprecedented challenge, communications industry circle Extensive 5th third-generation mobile communication technology (5G) research is expanded with academia, towards the year two thousand twenty generation.At present in ITU report Accuse in ITU-R M. [IMT.VISION] and following 5G framework and overall goals are being discussed, wherein demand prospect to 5G, Application scenarios and every important performance indexes elaborate.For the new demand in 5G, ITU report ITU-R M. [IMT.FUTURE TECHNOLOGY TRENDS] is provided for the related information of 5G technological trend, it is intended to which solution system gulps down The amount of telling is obviously improved, Consumer's Experience uniformity, autgmentability are to support IoT, time delay, efficiency, cost, network flexibility, new industrial The prominent question such as the support of business and flexible spectrum utilization.
In face of the more diversified business scenarios of 5G, it is necessary to which flexible multiple access technology supports different scenes to be needed with business Ask.For example, in face of the business scenario of magnanimity connection, how more users are accessed in limited resource, turn into 5G multiple access skills Art needs the key problem solved.In current 4G LTE networks, mainly using based on OFDM The multiple access technology of (Orthogonal Frequency Division Multiplexing, OFDM), such as descending orthogonal frequency Multiple access accesses (Orthogonal Frequency Division Multiple Access, OFDMA) and up single carrier frequency Divide multiple access access (Single-carrier Frequency Division Multiple Access, SC-FDMA).It is however, existing Some is obviously difficult to meet that 5G is lifted on 5~15 times and every square kilometre of area for spectrum efficiency based on orthogonal access way User, which accesses number, will reach the demand of million ranks.And non-orthogonal multiple access (Non-orthogonal Multiple Access, NOMA) technology is by multiple users multiplexing same asset, so as to greatly promote the user of support connection quantity.By There are more chances to access in user so that network entire throughput and spectrum efficiency lifting.In addition, face large-scale machines classification Communicate (massive Machine Type Communication, mMTC) scene, it is contemplated that the cost of terminal and realization are complicated Degree, it may be necessary to handle more simple multiple access technology using operation.It is non-in face of low delay or the business scenario of low-power consumption, use Orthogonal multiple access technique, which can be better achieved, exempts to dispatch contention access, realizes that low delay communicates, and reduces the opening time, Reduce equipment power dissipation.
The non-orthogonal multiple technology primarily now studied has：Multiple users share accesses (Multiple User Shared Access, MUSA), multi-user's superposed transmission (Multiuser Superposition Transmission, MUST), pattern segmentation multiple access access (Pattern Division Multiple Access, PDMA), sparse CDMA connect Enter (Sparse Code Multiple Access, SCMA), resource expansion multiple access system (Resource Spread Multiple Access, RSMA), nonopiate CDMA access (Non-orthogonal Coded Multiple Access, NCMA), non-orthogonal codes be tapped into (Non-orthogonal Coded Access, NOCA), hand over divide multiple access to access (Interleave Division Multiple Access, IDMA) and intertexture grid multiple access access (Interleave Grid Multiple Access, IGMA) etc..Wherein, MUSA, NCMA, NOCA are to distinguish user by code word, SCMA be according to User is distinguished by code book, MUST is to distinguish user by power, and PDMA is to distinguish user by different Eigen Structures, IDMA is that different users is distinguished by interleaved sequence, IGMA be by interleaved sequence and grid mapping distinguish jointly it is different User.Detailed content on IDMA can simply refer to an early literatures：Li Ping,Lihai Liu,Keying Wu and W.K.Leung,“Interleave Division Multiple Access”,IEEE Transactions on Wireless Communication,Vol.5,No.4,pp.938-947,Apr.2006。
Orthogonal frequency division multiple access system (Orthogonal Frequency Division different from the past Multiple Access, OFDMA), new non-orthogonal multiple access system (such as IDMA, IGMA, SCMA, PDMA and RSMA etc.) in, base station not only needs to inform demodulated reference signal (DeModulation that terminal uses by control signaling Reference Signal, DMRS), while also need to inform resource (such as interleaver, code book, and/or the pattern that terminal is distributed Mapping pattern).Such as in IDMA systems, it is assumed that 8 users can be accessed simultaneously by sharing 8 different interleavers, at this moment be needed The interleaver used when each user accesses is referred to by the use of 3 bits as index, so overhead altogether is 8 × 3=24 bits.By that analogy, when sharing N number of available resources in system, the overhead that accessing K user needs is K log2N-bit.It can be seen that when there is the terminal of magnanimity access in system, it is necessary to largely extra signaling consumption, while also increase The big delay of data transfer, reduce the handling capacity of system.Therefore, how to reduce signaling consumption is to promote multiple access technique An important factor for evolution.
The content of the invention
This application provides a kind of reference signal and the mapping method of multiple access access-in resource, to reduce signaling consumption.
This application provides a kind of reference signal and the mapping method of multiple access access-in resource, including：
Determine reference signal used in transmitting uplink data；
Multiple access access-in resource is determined according to the mapping relations between the reference signal and multiple access access-in resource；
Communicated using the multiple access access-in resource.
Preferably, the mapping relations according between the reference signal and multiple access access-in resource determine multiple access access money Source includes：For producing the parameter of the reference signal as index, connect according to multiple access corresponding to the mapping ruler determination of setting Enter resource.
If preferably, the multiple access access-in resource is interleaver, when T1 parameter in the use parameter is as rope When drawing, wherein, 1≤T1≤4, multiple access access-in resource corresponding to the mapping ruler determination according to setting includes：
Female interleaver to store in advance, according to the rule of setting, uses described T1 ginseng as first order mother's interleaver Any one untapped parameter is as index generation next stage mother's interleaver in number, by that analogy, until using the T1 Last untapped parameter is used for the interleaver of multiple access access as index generation in parameter.
If preferably, the multiple access access-in resource is power, indexed when being used as using T2 parameter in the parameter When, wherein, 1≤T2≤4, multiple access access-in resource corresponding to the mapping ruler determination according to setting includes：
Using the power reference made an appointment as first order power reference, according to the rule of setting, the T2 parameter is used Any one untapped parameter is as index generation next stage power reference, by that analogy, until using the T2 parameter In last untapped parameter as index generation be used for multiple access access power.
Preferably, when multiple access access-in resource for it is following any one or at least two combination when：Space resources, bit-level Interleaver, symbol level interleaver, power, nonopiate code book, orthogonal code book, scrambler, mode map pattern,
If using 1 parameter of the reference signal as index, the ginseng for the generation reference signal Number is index, is included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：According to corresponding to parameter selection Multiple access access-in resource；
If also included as index, this method using 2 parameters of the reference signal：By the multiple access access-in resource It is divided into N1Individual group, every group includes N2Individual resource；Wherein, N1And N2First parameter and the second parameter in respectively described 2 parameters Number；The parameter for the generation reference signal is index, according to multiple access corresponding to the mapping ruler determination of setting Access-in resource includes：The group of multiple access access-in resource is selected according to the first parameter, is selected according to the second parameter in selected packet group Multiple access access-in resource used in selecting；And/or
If also included as index, this method using 3 parameters of the reference signal：By the multiple access access-in resource First layer packet is carried out, is divided into N1Individual group, every group includes N2*N3Individual resource；First layer is grouped to every group of N2*N3Individual resource is carried out The second layer is grouped, and is divided into N2Group, every group includes N3Individual resource；Wherein, N1、N2And N3First parameter in respectively described 3 parameters, The number of second parameter and the 3rd parameter；The parameter for the generation reference signal is index, according to reflecting for setting Penetrate rule map out corresponding to multiple access access-in resource include：Select what multiple access access-in resource was grouped in first layer according to the first parameter Group, the group being grouped according to the second parameter selection multiple access access-in resource in the second layer, according to the 3rd parameter at selected 4th layer Multiple access access-in resource used in selection in packet group；And/or
If also included as index, this method using 4 parameters of the reference signal：By the multiple access access-in resource First layer packet is carried out, is divided into N1Individual group, every group includes N2*N3*N4Individual resource；First layer is grouped to every group of N2*N3*N4Individual money Source carries out second layer packet, is divided into N2Group, every group includes N3*N4Individual resource；The second layer is grouped to every group of N3*N4Individual resource is carried out Third layer is grouped, and is divided into N3Group, every group includes N4Individual resource；Wherein, N1、N2、N3And N4First ginseng in respectively described 4 parameters The number of number, the second parameter, the 3rd parameter and the 4th parameter；The parameter for the generation reference signal is index, Include according to multiple access access-in resource corresponding to the mapping ruler determination of setting：Multiple access access-in resource is selected the according to the first parameter The group of one layer of packet, the group being grouped according to the second parameter selection multiple access access-in resource in the second layer, is selected according to the 3rd parameter Select the group that multiple access access-in resource is grouped in third layer, selected according to the 4th parameter in selected third layer packet group used in Multiple access access-in resource.
Preferably, when a terminal uploads in identical running time-frequency resource and transports to few two data streams, it is described for production The parameter of the raw reference signal is index, is also included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：Will The interleaver for multiple access access is as afterbody mother's interleaver, based on the afterbody mother interleaver, according to setting Fixed rule, the interleaver according to used in the index of data flow produces each data flow.
Preferably, when a terminal uploads in identical running time-frequency resource and transports to few two data streams, it is described for production The parameter of the raw reference signal is index, is also included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：Will The power for multiple access access is as afterbody power reference, based on the afterbody power reference, according to setting Rule, the power according to used in the index of data flow produces each data flow.
Preferably, in the case of 1 parameter using the reference signal is as index, when a terminal is in identical When few two data streams are transported in running time-frequency resource upload, this method also includes：The multiple access access-in resource is divided into N1Group, every group of bag Include NsIndividual resource；Wherein, N1For the number of 1 parameter, NsEach terminal can be transmitted on identical running time-frequency resource Maximum data fluxion；The parameter for the generation reference signal is index, according to the mapping ruler determination pair of setting The multiple access access-in resource answered includes：The group being grouped according to the first parameter selection multiple access access-in resource in first layer, according to data The index of stream selects multiple access access-in resource used in each data flow in selected second layer packet group；And/or
In the case of 2 parameters using the reference signal are as index, when a terminal provides in identical time-frequency When few two data streams are transported in source upload, this method also includes：The multiple access access-in resource is subjected to first layer packet, is divided into N1 Group, every group includes N2*NsIndividual resource；By every group of N2*NsIndividual resource carries out second layer packet, is divided into N2Group, every group includes NsIt is individual Resource；Wherein, NsThe maximum data fluxion that can be transmitted on identical running time-frequency resource for each terminal；It is described for produce The parameter of the reference signal is index, is included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：According to The group that one parameter selection multiple access access-in resource is grouped in first layer, multiple access access-in resource is selected in the second layer according to the second parameter The group of packet, each data flow in selected second layer packet group is selected according to the index of data flow used in multiple access access Resource；And/or
In the case of 3 parameters using the reference signal are as index, when a terminal provides in identical time-frequency When few two data streams are transported in source upload, this method also includes：The multiple access access-in resource is subjected to first layer packet, is divided into N1 Group, every group includes N2*N3*NsIndividual resource；First layer is grouped to every group of N2*N3*NsIndividual resource carries out second layer packet, is divided into N2 Group, every group includes N3*NsIndividual resource；The second layer is grouped to every group of N3*NsIndividual resource carries out third layer packet, is divided into N3Group, often Group includes NsIndividual resource；Wherein, NsThe maximum data fluxion that can be transmitted on identical running time-frequency resource for each terminal；It is described For producing the parameter of the reference signal as index, according to multiple access access-in resource bag corresponding to the mapping ruler determination of setting Include：The group being grouped according to the first parameter selection multiple access access-in resource in first layer, multiple access access money is selected according to the second parameter The group that source is grouped in the second layer, the group being grouped according to the 3rd parameter selection multiple access access-in resource in third layer, according to data The index of stream selects multiple access access-in resource used in each data flow in selected third layer packet group；And/or
In the case of 4 parameters using the reference signal are as index, when a terminal provides in identical time-frequency When few two data streams are transported in source upload, this method also includes：The multiple access access-in resource is subjected to first layer packet, is divided into N1 Group, every group includes N2*N3*N4*NsIndividual resource；First layer is grouped to every group of N2*N3*N4*NsIndividual resource carries out second layer packet, It is divided into N2Group, every group includes N3*N4*NsIndividual resource；The second layer is grouped to every group of N3*N4*NsIndividual resource carries out third layer packet, It is divided into N3Group, every group includes N4*NsIndividual resource；Third layer is grouped to every group of N4*NsIndividual resource carries out the 4th layer of packet, is divided into N4 Group, every group includes NsIndividual resource；Wherein, NsThe maximum data fluxion that can be transmitted on identical running time-frequency resource for each terminal； The parameter for the generation reference signal is index, is provided according to multiple access access corresponding to the mapping ruler determination of setting Source includes：The group being grouped according to the first parameter selection multiple access access-in resource in first layer, selects multiple access to connect according to the second parameter Enter the group that resource is grouped in the second layer, the group being grouped according to the 3rd parameter selection multiple access access-in resource in third layer, according to 4th parameter selects the group of multiple access access-in resource packet at the 4th layer, according to the index of data flow in selected 4th layer of packet group Multiple access access-in resource used in the interior each data flow of selection.
Preferably, when multiple access access-in resource is the combination of bit-level interleaver and following at least one resource：Space provides Source, power, symbol level interleaver, nonopiate code book, orthogonal code book, scrambler, mode map pattern, it is described for described in generation The parameter of reference signal is index, is included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：
It is true according to the mapping ruler difference of setting for producing all or part of parameter of the reference signal as index Interleaver and other multiple access access-in resources corresponding to fixed for multiple access access.
Preferably, when multiple access access-in resource is the combination of power and following at least one resource：Space resources, bit-level Interleaver, symbol level interleaver, nonopiate code book, orthogonal code book, scrambler, mode map pattern, it is described for described in generation The parameter of reference signal is index, is included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：
It is true according to the mapping ruler difference of setting for producing all or part of parameter of the reference signal as index Power and other multiple access access-in resources corresponding to fixed for multiple access access.
Preferably, when the sum of multiple access access-in resource is less than the sum of reference signal, this method also includes：Pass through duplication Mode cause multiple access access-in resource sum it is equal with reference signal sum, by the multiple access access-in resource after duplication carry out correspondence Division operation.
Preferably, when the sum of multiple access access-in resource is less than the sum and the product of terminal maximum transmitted fluxion of reference signal When, this method also includes：It is equal to the sum and terminal of reference signal by the sum of the mode multiple access access-in resource of duplication The product of maximum transmitted fluxion, by division operation corresponding to the multiple access access-in resource progress after duplication.
Preferably, in the system for exempting from scheduling, this method also includes：According to the targeting sequencing of selection, pass through the rule of setting Then the ginseng is determined as targeting sequencing and for the mapping relations of the parameter of reference signal used in producing transmitting uplink data Number, the parameter are 1 to 4.
Preferably, the parameter bag as targeting sequencing and for reference signal used in producing transmitting uplink data Include：
If the parameter is 1, the parameter is determined using the targeting sequencing；
If the parameter is 2, targeting sequencing is subjected to first layer packet, is divided into N11Group；Utilize selected leading sequence The position being listed in first layer packet determines the 6th parameter in 2 parameters, utilizes first belonging to selected targeting sequencing Layer grouping group determines the 5th parameter in 2 parameters；Wherein, N11For the number of the 5th parameter；And/or
If the parameter is 3, targeting sequencing is subjected to first layer packet, is divided into N11Group；First layer packet is every Targeting sequencing in group carries out second layer packet, is divided into N21Group；It is true using position of the selected targeting sequencing in second layer packet The 7th parameter in fixed 3 parameters, 3 parameters are determined using the second layer grouping group belonging to selected targeting sequencing In the 6th parameter, determine the 5th parameter in 3 parameters using the first layer grouping group belonging to selected targeting sequencing； Wherein, N11For the number of the 5th parameter, N21For the number of the 6th parameter；And/or
If the parameter is 4, targeting sequencing is subjected to first layer packet, is divided into N11Group；First layer packet is every Targeting sequencing in group carries out second layer packet, is divided into N21Group；The targeting sequencing second layer being grouped in every group carries out third layer Packet, is divided into N31Group；The 8th ginseng in 4 parameters is determined using position of the selected targeting sequencing in third layer packet Number, determines the 7th parameter in 4 parameters, before selected using the third layer grouping group belonging to selected targeting sequencing Lead the second layer grouping group belonging to sequence and determine the 6th parameter in 4 parameters, using belonging to selected targeting sequencing First layer grouping group determines the 5th parameter in 4 parameters；Wherein, N11For the number of the 5th parameter, N21For institute State the number of the 6th parameter；N31For the number of the 7th parameter.
Present invention also provides a kind of reference signal and the mapped device of multiple access access-in resource, including：
Reference signal determining module, for determining reference signal used in transmitting uplink data；
Mapping block, for determining that multiple access accesses according to the mapping relations between the reference signal and multiple access access-in resource Resource；
Transport module, for being communicated using the multiple access access-in resource.
Preferably, the reference signal determining module, is additionally operable to the targeting sequencing according to selection, it is true by the rule of setting Determine the reference signal that transmitting uplink data uses.
As seen from the above technical solution, the determination reference signal and the method for the mapping relations of resource pool that the application provides, So that base station and terminal can obtain corresponding multiple access access-in resource information by the reference signal of distribution, it is extra so as to avoid Signaling consumption and transmission delay.Mapping mode of the present invention can be according to reference signal producing method and application Obtain to scene dynamics corresponding multi-access resource (can be one-to-one, one-to-many or many-one mapping).The present invention simultaneously can To apply in scheduling system is exempted from simple flow and reduction complexity.
Brief description of the drawings
Fig. 1 is mapping flow chart of the application based on scheduling system；
Fig. 2 is the application based on the mapping flow chart for exempting from scheduling system；
Fig. 3 is the mapping flow chart that root sequence and cyclic shift of the application based on reference signal obtain interleaver；
Fig. 4 is the application IGMA system transmitting terminal theory diagrams；
Fig. 5 is the mapped streams that root sequence of the application based on reference signal, cyclic shift, OCC and COMB obtain interleaver Cheng Tu；
Fig. 6 is the mapping mode schematic diagram that the application counts to interleaver according to the transmitting data stream of terminal；
Fig. 7 is the application reference signal and the composition structural representation of the mapped device of multiple access access-in resource.
Embodiment
For the object, technical solution and advantage of the application are more clearly understood, develop simultaneously embodiment referring to the drawings, right The application is described in further detail.
At present, the research emphasis for multiple access technology is link and system-level performance simulation and checking.Future, no matter Which kind of multiple access technology is adopted by standard, how to reduce the problem of overhead will be one very important.In systems in practice, use Family carries out the detection of channel and estimation (such as detection reference signal (Sounding by using different reference signals Reference Signal, SRS) and demodulated reference signal (DeModulation Reference Signal, DMRS)), so as to Complete the demodulation to reception signal.Then, the application proposes a kind of reference signal and the mapping method of multiple access access-in resource, so Base station and terminal, which pass through distributed reference signal, can obtain corresponding multiple access access-in resource information, be opened so as to reduce signaling Pin.Mapping method of the present invention can dynamically obtain corresponding according to the producing method and application scenarios of reference signal Multiple access access-in resource (can be that one-to-one, one-to-many or many-one maps).The present invention, which can also apply, is exempting from scheduling system In with simple flow and reduce complexity.
The system based on scheduling is considered first, and Fig. 1 is the basic flow sheet of mapping method of the present invention based on scheduling system. As shown in figure 1, this method includes following key step：
Step 1：Base station is each terminal distribution reference signal by Physical Downlink Control Channel (PDCCH).
Step 2：Base station and terminal pass through mapping side described herein each according to the index for the reference signal distributed Formula maps out corresponding multiple access access-in resource.
Step 3：The reference signal distributed is sent to base station by terminal, and base station carries out channel estimation using reception signal.
Step 4：Terminal is communicated using the multiple access access-in resource according to the transmission means of agreement with base station.
The main innovation point of the present invention is multiple access accesses according to corresponding to the reference signal of distribution maps to obtain in step 2 Resource, specifically include：
1) for the system using interleaver as multiple access access-in resource, such as IDMA systems, when using for producing with reference to letter Number parameter in T1 parameter as index when (wherein, 1≤T1≤4), receiving-transmitting sides are made with female interleaver for storing in advance For first order mother's interleaver, according to certain rule, any one untapped parameter is used as rope using in the T1 parameter Next stage mother's interleaver is caused into, by that analogy, until using last untapped parameter conduct in the T1 parameter Index generation is used for the interleaver of multiple access access.
2) for the system using power as multiple access access-in resource, such as：Ascending power domain NOMA systems, when using for producing When T2 parameter in the parameter of raw reference signal is used as index (wherein, 1≤T2≤4), work(of the receiving-transmitting sides to make an appointment Rate benchmark, according to certain rule, uses any one untapped parameter of the T2 parameter as first order power reference Next stage power reference is generated as index, by that analogy, until using last untapped ginseng in the T2 parameter Number is used for the power of multiple access access as index generation.
3) when multiple access access-in resource for it is following any one or at least two combination when：Space resources, bit-level interweave Device, symbol level interleaver, power, nonopiate code book, orthogonal code book, scrambler, mode map pattern, as SCMA, RSMA, MUSA, The systems such as PDMA, NCMA, NOCA, IGMA, ascending power domain NOMA, uplink multi-users MIMO, by multiple access access-in resource combine into At least one layer of packet of row, and the group for selecting each layer group successively as index for the parameter for producing reference signal is utilized, and The combination of resources for multiple access access is selected in group.
4) when multiple access access-in resource is the combination of bit-level interleaver and following at least one resource：Space resources, work( Rate, symbol level interleaver, nonopiate code book, orthogonal code book, scrambler, mode map pattern, for producing the reference signal All or part of parameter for index, according to the mapping ruler of setting determine respectively corresponding to for multiple access access interleaver and Other multiple access access-in resources；Similarly, when multiple access access-in resource is the combination of power and following at least one resource：Space provides Source, bit-level interleaver, symbol level interleaver, nonopiate code book, orthogonal code book, scrambler, mode map pattern, for producing All or part of parameter of the reference signal is index, according to the mapping ruler of setting determine respectively corresponding to connect for multiple access The power and other multiple access access-in resources entered.
5) when terminal has multiple transport streams, 1), 2), 3), 4) on the mapping mode basis, can utilize each One reference signal is mapped to multiple multi-access resources by the number of terminal data stream.
6) when the multi-access resource number in system is less than available reference signal number, as SCMA, RSMA, MUSA, PDMA, The systems such as NCMA, NOCA, can by overlapping packet mode (i.e. same multi-access resource can belong to multiple different packets, or Multiple identical multi-access resources are included in one packet) realize that reference signal maps to the many-one of multi-access resource.
The application also contemplates the system for exempting from scheduling.The application is illustrated in figure 2 based on the mapping flow for exempting from scheduling system Figure, base station and terminal in the case of without scheduling, pass through according to the targeting sequencing (preamble sequence) of selection Certain mapping ruler can obtain the reference signal used during transmitting uplink data, and then pass through further according to reference signal certain Mapping ruler obtain the multiple access access-in resource that uses of transmitting uplink data, afterwards, terminal sends used reference signal To base station, base station carries out channel estimation, transmission side of the terminal using the multiple access access-in resource according to agreement using reception signal Formula is communicated with base station.Wherein, reference signal to the mapping mode of multiple access access-in resource with the system based on scheduling.In addition, Mapping from targeting sequencing to reference signal is mainly characterized by：The root for producing reference signal is obtained according to the sequence number of targeting sequencing Sequence, cyclic shift, OCC and COMB.Can dynamically it be realized according to the number of targeting sequencing and the number of available reference signal One-to-one or many-to-one mapping.
It should be noted that herein described multiple access access-in resource includes：Non-orthogonal multiple access-in resource and orthogonal multiple access Access-in resource.That is：Technical scheme provided herein is not only suitable for non-orthogonal multiple access system, is also applied for just Hand over multiple access system.Specifically, such as in the SCMA systems using code book as multi-access resource, when there is a small amount of terminal in system When, can be the orthogonal code book of each terminal distribution.Now, still each end can be obtained by mapping method described herein Hold the multiple access access-in resource used.Mainly illustrated below in the embodiment of the present application by taking non-orthogonal multiple access system as an example.
It is described in detail below by the mapping method in one to five pair of system based on scheduling of embodiment, passes through implementation Example six based on the mapping method for exempting from scheduling system to being described in detail.
Embodiment one：
The present embodiment introduces a kind of reference signal and the one-to-one mapping method of interleaver for IDMA.In real system In, reference signal is generally made up of parameter in four, i.e. root sequence, cyclic shift, OCC and COMB.Here, reference signal is considered The method that two parameters map out interleaver.Two described parameters can be any of reference signal composition parameter in described four Two kinds, the present embodiment illustrates for situation of described two parameters for root sequence and cyclic shift.Specifically, reference signal SequenceProducing method it is as follows：
Wherein, u and v is to be used to determine root sequenceParameter, α is cyclic shift, and n=0,1 ..., T-1 are reference N-th of sampling point of signal, T are the length of reference signal.When two terminals are from different cells, or it is transmitted shared by data During resource block (Resource Block, RB) length difference, the reference signal of the two terminals is distributed to from different root sequences Row；When two terminals come from same cell and identical shared resource block length, the reference signal for distributing to the two terminals is come From identical root sequence, but there is different cyclic shifts.
Here, the N that the index of reference signal root sequence is denoted as q, q=0,1 ...q- 1, cyclic shift is denoted as α, α=0, 1 ..., Nα- 1, wherein, NqFor the number of root sequence, NαFor the number of cyclic shift.Therefore, can for one-to-one mapping The interleaver sum of reference is NqNα。
The mapping mode of the present embodiment introduction is as shown in figure 3, Fig. 3 obtains for the root sequence based on reference signal and cyclic shift The mapping flow chart of interleaver is obtained, main process is divided into two parts：First, according to the female intertexture for having previously been stored in base station and terminal Device, using the sequence number q of reference signal root sequence as the first parameter, second level mother's interleaver is produced according to certain rule；Then, According to second level mother's interleaver of acquisition, using the cyclic shift α of reference signal as the second parameter, produced according to certain rule Interleaver for multiple access access.It should be noted that：During interleaver is produced, reference signal root sequence and circulation move Position can be exchanged using order, i.e.,：Can be first according to the female interleaver for having previously been stored in base station and terminal, using with reference to letter Number cyclic shift α, second level mother's interleaver is produced according to certain rule；Then, according to second level mother's interleaver of acquisition, profit With the sequence number q of the root sequence of reference signal, the interleaver for multiple access access is produced according to certain rule.Fig. 3 is only with previous Illustrated exemplified by kind situation.In addition it is also possible to only using root sequence and follow it is bad shift the two parameters one of them, next life Into the interleaver accessed for multiple access.
As shown in figure 3, second level mother's interleaver 0,1 is denoted as by second level mother's interleaver caused by root sequence index, 2 ..., Nq-1；Interleaver 0, N is denoted as by interleaver caused by second level mother's interleaver 0q..., (Nα-1)Nq.By that analogy, The index of the interleaver of acquisition is denoted as k, k=0,1 ..., NqNα- 1, then the mathematic(al) representation of above-mentioned mapping mode can be denoted as：
K=q+ α × Nq
It should be noted that：Here mapping ruler mathematic(al) representation by way of example only, not can only be according to the mathematics Expression formula is mapped, and in actual applications, also can complete mapping using q and α by other means.One kind is specifically described below The producing method of interleaver, i.e. index producing method.In exponential manner, k-th of interleaver is by a female interleaver pi0 With q generation interleaver pig1And α generation interleaver pig2Caused by cascade.Its mathematic(al) representation is：
π is arrived by (q, α) in order to obtainkOne-to-one mapping, generation interleaver need to meet following condition：
In order to meet above-mentioned condition, a kind of selection mode of generation interleaver is：
So：
Wherein, interleaver pi is generatedgBe described as follows：L-th of bit of list entries passes through interleaver pigAfter be mapped to The individual bits of l ' of output sequence.Here l and l ' relation is：
Wherein, S be IDMA systems in spreading factor, NbFor the bit length after channel coding (before spread spectrum), total bit Length is S × Nb, l, l '=0,1 ..., S × Nb-1.The rule causes interleaver pigMeet conditionWherein | x-y | ＜ Nb.Due to k=0,1 ..., NqNα- 1, and k<<Nb, it is seen that above-mentioned mapping relationsSo that：
1) for the combination (q, α) of any root sequence and cyclic shift, unique interleaver can be obtained；
2) for the combination (q, α) of different root sequence and cyclic shift, different interleavers can be obtained.
One specific example is as follows：Have 4 terminals in consideration system, each terminal needs to send 5 bits, spread spectrum because Son is 3 (total bit length is 15), and：
π0={ 4,1,14,9,5,15,12,6,3,13,2,11,7,8,10 }
πg={ 13,11,9,1,14,12,4,2,15,7,5,3,10,8,6 }
So it is according to interleaver caused by exponential manner：
Terminal 0：π0={ 4,1,14,9,5,15,12,6,3,13,2,11,7,8,10 }
Terminal 1：π1={ 9,6,11,12,2,10,13,8,14,7,1,15,4,5,3 }
Terminal 2：π2={ 12,8,15,13,1,3,7,5,11,4,6,10,9,2,14 }
Terminal 3：π3={ 13,5,10,7,6,14,4,2,15,9,8,3,12,1,11 }
It should be noted that when only mapping out interleaver by reference to a parameter of signal, need to only be interweaved by mother Device, using the index of the parameter, the interleaver for determining to use with the interleaver generating mode described in the present embodiment.
Embodiment two：
Embodiment one is described for the mapping flow using interleaver as the system of multi-access resource.In the present embodiment, examine Consider the system using power as multi-access resource, such as up power domain NOMA.In such systems, by carrying out Power Control, make The signal reception power that different terminals are sent is different, so as to reach the purpose for distinguishing user.At this point it is possible to by with reference signal Mapping relations are established to complete Power Control.
The present embodiment considers two parameters by reference signal, i.e. root sequence and cyclic shift, maps out multiple access access work( The method of rate.First, using the power reference made an appointment in system, according to the first parameter of reference signal, according to certain Rule produce second level power reference；Then, using caused second level power reference, according to the second of reference signal the ginseng Number, the power for multiple access access is produced according to certain rule.Here, the first parameter of reference signal and the second parameter institute's generation The implication of table is the same as embodiment one.It is root sequence with the first parameter in the present embodiment, the second parameter is said exemplified by cyclic shift It is bright.Specifically, it is for root sequence index q, cyclic shift α, the index of caused power：
K=q+ α × Nq
Wherein q=0,1,2 ..., Nq- 1, NqFor root sequence sum, α=0,1,2 ..., Nα- 1, NαFor the total of cyclic shift Number.Unit power skew is denoted as P, the power reference that system is made an appointment is P0, then caused connecing for multiple access access Receiving power is
Pk=P0+k×P.
It should be noted that：Here mapping ruler mathematic(al) representation by way of example only, not can only be according to the mathematics Expression formula is mapped, and in actual applications, also can complete mapping using q and α by other means.In addition, reference signal It can be exchanged using order, i.e., using cyclic shift as the first parameter, the second parameter is used as using root sequence.Meanwhile two used Individual parameter can also be the other specification of reference signal, i.e. COMB and OCC.When a parameter only by reference to signal maps out For multiple access access power when, only need to be true in a manner of described in the present embodiment using the index of the parameter by female power reference Surely it is used for the power of multiple access access.
Embodiment three：
Embodiment one and embodiment two describe for being used as the system of multi-access resource using interleaver and receiving power respectively Mapping flow.In the present embodiment, consider by the system of code book and/or mode map as multi-access resource, such as SCMA, MUSA, PDMA, NCMA, NOCA and RSMA.In such systems, resource pool (codebook design and mode map pattern) depends on Complex optimized algorithm, therefore, it is difficult to produced according to a parent resource by simple mode.It is further to note that The mapping method of the present embodiment is equally applicable to using interleaver and/or power as multiple access system, particularly with interleaver With power can not according to caused by a female interleaver or female power reference by mode described in embodiment one and two situation. That is the present embodiment is the following situation of any one suitable for multiple access access-in resource：Space resources, bit-level interleaver, Symbol level interleaver, power, nonopiate code book, orthogonal code book, scrambler, mode map pattern.
Specifically, consider two parameters by reference signal (that is, using 2 parameters of reference signal as rope Draw), i.e. root sequence and cyclic shift, the method for mapping out multi-access resource.In order to obtain from reference signal to resource pool one by one Mapping relations, resource pool is divided into NqIndividual group, every group of NαIndividual resource to be selected, wherein, NqAnd NαPhysical significance with embodiment one, I.e.：NqFor the number of root sequence, NαFor the number of cyclic shift.It should be noted that：Resource pool can also be divided into NαIndividual group, Every group of NqIndividual resource to be selected.Only illustrated in the present embodiment by taking the previous case as an example.First, the index q of root sequence is made Group is determined for the first parameter (correspond to claims described in the first parameter)；Then using cyclic shift α as second Parameter (correspond to claims described in the second parameter) determines selected resource.So, with described in embodiment one, join The mapping relations for examining signal and selected resource index are：
K=q+ α × Nq
It should be noted that：Here mapping ruler mathematic(al) representation by way of example only, not can only be according to the mathematics Expression formula is mapped, and in actual applications, also can complete mapping using q and α by other means.According to this mapping relations, The rule of classification of resource pool is as follows：For multi-access resource k, its corresponding packet index and position in a packet are according to lower section Formula determines：
Packet index：k mod Nq；
Position in packet：
SCMA systems as shown in table 1, wherein 6 available code books are shared, in order to which this 6 code books and reference signal are established into one To a mapping relations, the resource packet of the root sequence index based on reference signal and cyclic shift as shown in table 2 is considered, wherein Assuming that root sequence number Nq=2, cyclic shift number Nα=3.As shown in table 2, the 0th group of middle position is set to 0, and 1,2 corresponds to code book sequence respectively Number the 0,2,4, the 1st group of position 0,1,2 corresponds to code book sequence number 1,3,5 respectively.If the root sequence of reference signal is 0, cyclic shift For 2, then the index of the multi-access resource used is 4.
Table 1SCMA code books
The resource packet of root sequence index and cyclic shift of the table 2 based on reference signal
In the present embodiment, using for reference signal can sequentially exchange, i.e., using cyclic shift as the first parameter, with root Sequence is as the second parameter.Meanwhile two parameters used can also be the other specification of reference signal, i.e. COMB and OCC.When When only mapping out multi-access resource by reference to a parameter of signal, without being grouped to resource, the index of the parameter is utilized It is determined that the multiple access access-in resource used.
Example IV：
The present embodiment considers mixing multiple access system, i.e. multiple access access-in resource combines group by a variety of multiple access access-in resources Into, include following at least two situation：Space resources, bit-level interleaver, symbol level interleaver, power, nonopiate code book, Orthogonal code book, scrambler and mode map pattern etc..For such system, the present embodiment introduction is joined by two of reference signal Number, i.e. root sequence and cyclic shift, the method for mapping out multi-access resource.Specifically method is divided into following three kinds of situations：
Situation one：When the mode of multiple access access-in resource combination is complex, the multiple access access-in resource combination used is difficult to Produced by a parent resource.At this point it is possible to continue to use the mode of embodiment three, the combination of multiple access access-in resource is grouped, and Utilize multiple access access-in resource combination corresponding to the parameter determination of reference signal.
Situation two：When the combination of multiple access access-in resource includes bit-level interleaver, such as IGMA systems, its transmitting terminal principle Block diagram is as shown in Figure 4.First, the bit-level interleaver that the data of each user are distributed by a system, then according to advance By bit modulation into symbol, the grid mapping pattern that then caused symbol distributes according to system maps the modulation system appointed To the running time-frequency resource for transmission.Multi-access resource combination includes the first order (bit-level) interleaver in such a system and grid reflects Penetrate pattern (symbol level interleaver).Wherein grid mapping pattern can be produced by way of zero padding intertexture.Zero padding interleaver Operation principle is as follows：Assuming that the symbol sebolic addressing length after modulation is L, the mode zero padding for passing through zero padding at sequence end first Sequence total length afterwards is 2L (length after zero padding can change according to system configuration), then the symbol by a length for 2L Level interleaver upsets sequence.
In IGMA systems, bit-level interleaver and symbol level interleaver can be produced respectively, you can with using with reference to letter Number root sequence index and cyclic shift, according to mode described in embodiment one, produce bit-level interleaver.Then, with same Mode produces symbol level interleaver.Specifically, first according to the female interleaver pi for having previously been stored in transmitting-receiving two-end0(this female interleaver Female interleaver different from producing bit-level interleaver), using root sequence index q, produce second level mother's interleaver；Then, root According to caused second level mother interleaver, using cyclic shift α, the interleaver for symbol interleaving is produced.Here, the second level interweaves Device and for symbol interleaving interleaver producing method can according to described in the present embodiment exponential manner produce.
In IGMA systems, bit-level interleaver and symbol level interleaver can also be utilized respectively the root sequence of reference signal Index and cyclic shift produce.Specifically, according to the female bit-level interleaver prestored in system, using root sequence index q, The bit-level interleaver (according to rule described in embodiment one) used is produced, caused bit-level interleaver index is q.Connect , using the cyclic shift α of reference signal, the symbol level used is produced according to the female symbol level interleaver prestored in system Interleaver (according to rule described in embodiment one), caused symbol level interleaver index is α.
Similarly, for other systems using interleaver as one of multiple access access-in resource, as multiple access access-in resource is combined as handing over Device and code book are knitted, the part or all of parameter of reference signal can be utilized to be sequentially generated interleaver (according to rule described in embodiment one Then) and other multi-access resources (according to rule described in embodiment three).
Situation three：When the combination of multiple access access-in resource includes power, with situation two, the root sequence of reference signal can be utilized Row and cyclic shift, the power for multiple access access is produced according to mode described in embodiment two, then recycles reference signal Root sequence and cyclic shift produce other multi-access resources (such as other multi-access resources are interleaver, then the rule according to embodiment one, It is such as the multi-access resource combination that other multi-access resources are code book or complexity, then regular described in foundation embodiment three).
Provided furthermore it is possible to be sequentially generated using the partial parameters of reference signal for the power of multiple access access and other multiple access Source.For example, the root sequence q of reference signal can be utilized to produce power P=P0+ qP, P0For power reference, P is that unit power is inclined Move.Then, other multi-access resources are produced using the cyclic shift of reference signal., can be with if other multi-access resources are interleaver Produced according to female interleaver for being stored in system, combined if other multi-access resources are code book or complicated multi-access resource, using following Ring displacement directly selects the resource used.It can be exchanged using order herein with reference to signal parameter.
In the present embodiment, using for reference signal can sequentially exchange.Meanwhile two parameters used can also be ginseng Examine the other specification of signal, i.e. COMB and OCC.When only mapping out multi-access resource combination by reference to a parameter of signal, Include the system of interleaver and/or power for multi-access resource combination, utilize the female interleaver and/or female work(stored in system Rate benchmark, using the parameter, according to embodiment one and/or the mode of embodiment two, produce for multiple access access interleaver and Power.Including code book etc. for the complex system of multi-access resource combination and/or multi-access resource combination can not be by simple Caused by mode during multi-access resource, according to rule described in embodiment three, without being grouped to resource, the index of the parameter is utilized It is determined that the multiple access access-in resource used.
Embodiment five：
Existing reference signal producing method is limited to the delay spread of channel, therefore can not meet that mass users are simultaneously same Frequency accesses.A solution is to lift the capacity of reference signal by introducing COMB and/or OCC.As shown in table 3, for The different user of identical cyclic shift and root sequence is assigned with, their reference signal can be by distributing different COMB And/or OCC is further discriminated between.If introduce two kinds of different COMB and two kinds of different OCC, then what system can access Number of users will be former 4 times.
A kind of mode that reference signal is produced by root sequence, cyclic shift, OCC and COMB of table 3
Here, root the sequence sequence number q and cyclic shift α of reference signal definition are the same as embodiment one and embodiment two.Enter One step, the OCC indexes of reference signal are denoted as nocc, nocc=0,1 ... Nocc- 1, cyclic shift is denoted as nCOMB, nCOMB=0, 1 ..., NCOMB- 1, wherein NOCCFor OCC sum, NCOMBFor COMB sum.Therefore, for one-to-one mapping, may refer to The sum of multi-access resource be NqNαNOCCNCOMB。
For IDMA systems, the main flow of mapping is divided into 4 parts：
1st step, according to the female interleaver for having previously been stored in base station and terminal, using the sequence number q of reference signal root sequence as First parameter (corresponds to the first parameter described in claims), and second level mother's interleaver is produced according to certain rule.
2nd step, it is (corresponding using the cyclic shift α of reference signal as the second parameter according to second level mother's interleaver of acquisition In the second parameter described in claims), produce third level mother's interleaver according to certain rule.
3rd step, according to third level mother's interleaver of acquisition, by OCC index nOCC(correspond to right as the 3rd parameter The 3rd parameter described in claim), produce fourth stage mother's interleaver according to certain rule.
4th step, according to the fourth stage mother's interleaver obtained, by COMB index nCOMB(correspond to as the 4th parameter The 4th parameter described in claims), the interleaver used is produced according to certain rule.
Fig. 5 is the mapped streams that root sequence of the application based on reference signal, cyclic shift, OCC and COMB obtain interleaver Cheng Tu, example as shown in Figure 5, the first order and second level mapping mode map for the third level with embodiment one, pass through the third level Female interleaver 1+NqCaused fourth stage mother interleaver is denoted as fourth stage mother's interleaver 1+Nq, 1+Nq+NαNq, 1+Nq+2NαNq..., 1+ Nq+(NOCC-1)NαNq；Pass through fourth stage mother's interleaver 1+NαNqCaused interleaver is denoted as interleaver 1+Nq+NαNq, 1+Nq+NαNq+ NOCCNαNq..., 1+Nq+NαNq+(NCOMB-1)NOCCNαNq.The index of the interleaver finally obtained is denoted as k, k=0,1 ..., NqNαNOCCNCOMB- 1, then the mathematic(al) representation of above-mentioned mapping mode can be denoted as：
K=q+ α × Nq+nOCC×NqNα+nCOMB×NqNαNOCC
It should be noted that：Here mapping ruler mathematic(al) representation by way of example only, not can only be according to the mathematics Expression formula is mapped, and in actual applications, also can complete mapping using above-mentioned parameter by other means.Further, when making When producing interleaver with exponential manner, the interleaver that terminal k is used is：
A kind of implementation is：
πg1=π g,
So：
Wherein generate interleaver pigSelection mode with embodiment one.In addition, four parameters can be with using order Exchange.When the reference signal used three parameters generate interleaver when, only need to be obtained by the above-mentioned the 1st, 2,3 steps be used for it is more The interleaver of location access, and three parameters used can be any three in four parameters.When the two of use reference signal During an individual and parameter generation interleaver, the method for foundation is as described in embodiment one.
For the system using receiving power as multiple access access-in resource, such as up power domain NOMA, flow is specifically mapped It is also classified into 4 steps：
1st step, the power reference made an appointment using system, using the sequence number q of reference signal root sequence as the first parameter (corresponding to the first parameter described in claims), second level power reference is produced according to certain rule.
2nd step, it is (corresponding using the cyclic shift α of reference signal as the second parameter according to the second level power reference of acquisition In the second parameter described in claims), produce third level power reference according to certain rule.
3rd step, according to the third level power reference of acquisition, by OCC index nOCC(correspond to right as the 3rd parameter The 3rd parameter described in claim), produce fourth stage power reference according to certain rule.
4th step, according to the fourth stage power reference obtained, by COMB index nCOMB(correspond to as the 4th parameter The 4th parameter described in claims), produce the power for multiple access access according to certain rule.
The index of the interleaver finally obtained is denoted as k, k=0,1 ..., NqNαNOCCNCOMB- 1, then above-mentioned mapping mode Mathematic(al) representation can be denoted as：
K=q+ α × Nq+nOCC×NqNα+nCOMB×NqNαNOCC
Unit power skew is denoted as P, the power reference that system is made an appointment is P0, then the caused multiple access that is used for accesses Receiving power be
Pk=P0+k×P.
It should be noted that：Here mapping ruler mathematic(al) representation by way of example only, not can only be according to the mathematics Expression formula is mapped, and in actual applications, also can complete mapping using above-mentioned parameter by other means.In addition, described four Individual parameter can be exchanged using order., only need to be by above-mentioned when carrying out Power Control using three parameters of reference signal The 1st, 2,3 steps obtain power for multiple access access, and three parameters used can be any three in four parameters. When carrying out Power Control using two of reference signal and a parameter, the method for foundation is as described in embodiment two.
For using code book and/or mode map as the system of multi-access resource, such as SCMA, MUSA, PDMA, NCMA, NOCA And RSMA, and/or interleaver can not can not be produced by IDMA systems caused by parent resource, and/or power by parent resource Ascending power domain NOMA, i.e.,：For multiple access access-in resource for it is following any one in the case of：Space resources, bit-level interweave Multi-access resource, is divided into by device, symbol level interleaver, power, nonopiate code book, orthogonal code book, scrambler, mode map pattern first NqIndividual group (being denoted as first layer packet), every group has NαNOCCNCOMBIndividual resource, will produce reference signal root sequence index q as First parameter (correspond to the first parameter in claims) selects group.Then, the N to each groupαNOCCNCOMBIndividual money Source is divided into NαGroup (i.e. the second layer is grouped), every group includes NOCCNCOMBIndividual resource, it regard the cyclic shift α for producing reference signal as the Two parameters (the second parameter corresponded in claims) determine the group of second layer packet.Then, by the second layer point N in every group of groupOCCNCOMBIndividual resource is divided into NOCCGroup (i.e. third layer is grouped), every group includes NCOMBIndividual resource, it will produce with reference to letter Number OCC indexes nOCCThird layer packet is determined as the 3rd parameter (the 3rd parameter corresponded in claims) Group.Finally by the COMB indexes n for producing reference signalCOMB(the 4th parameter corresponded in claims) is in third layer The resource of distribution is selected in packet, the mathematic(al) representation of the index of the resource can be denoted as：
K=q+ α × Nq+nOCC×NqNα+nCOMB×NqNαNOCC·
Wherein, k=0,1 ..., NqNαNOCCNCOMB-1.It should be noted that：Here mapping ruler mathematic(al) representation is only For example, can only not be mapped according to the mathematic(al) representation, in actual applications, also can be by other means using upper State parameter and complete mapping.According to this mapping relations, the rule of classification of resource pool is as follows：For multi-access resource k, each layer corresponding to it Packet index it is as follows：
■ first layer packet indexes：k mod Nq；
■ second layer packet indexes：
■ third layer packet indexes：
Position in the packet of ■ third layer：
With Nq=2, Nα=4, NOCC=2, NCOMBExemplified by=2, its 32 multi-access resource referred to packet (mapping) mode As shown in table 4.If the root sequence of reference signal is 0, cyclic shift 1, OCC indexes are that 0, COMB indexes are 1, then are used Multi-access resource index be 2.
Root sequence of the table 1 based on reference signal, cyclic shift, the wherein packet of OCC and COMB resource, root sequence number For 2, cyclic shift number is that 4, OCC number is that 2, COMB number is 2
For mixing multiple access system, i.e.,：Multiple access access-in resource is the situation of following at least two combinations：Space provides Source, bit-level interleaver, symbol level interleaver, power, nonopiate code book, orthogonal code book, scrambler, mode map pattern, when more Location combination of resources is complex and when being difficult to produce by parent resource, can continue to use the multiple access based on code book described in the present embodiment Packet mode in system, so as to complete the mapping that reference signal combines with multi-access resource.
For multi-access resource combination include interleaver and/or power in the case of, can using reference signal whole or Partial parameters are sequentially generated the multi-access resource in multi-access resource combination.Such as IGMA systems, the whole of reference signal can be utilized Four parameters, according to mode described in the present embodiment, it is sequentially generated bit-level interleaver and symbol level interleaver.Alternatively, it is also possible to Using the partial parameters of reference signal, such as root sequence index and cyclic shift, bit-level is produced according to mode described in embodiment one Interleaver, symbol level interleaver is produced according to mode described in embodiment one followed by the OCC indexes of reference signal.It is described here The number of the partial parameters of reference signal can be one, two or three, and can be any combination of four parameters.Together When, each resource uses in generation multi-access resource combination reference signal number and combination can be different, i.e.,：For IGMA systems System, bit-level interleaver can be produced by root sequence, cyclic shift, OCC and (be produced according to described in the present embodiment by three parameters The mode of raw interleaver), and symbol level is produced by COMB and OCC and (determined according to described in embodiment one by two parameters The mode of multi-access resource).Explanation is needed exist for, in above-mentioned mixing multiple access system, when by reference to the three of signal , can be most in each multi-access resource in producing multi-access resource combination and/or multi-access resource combination when individual parameter is mapped The number of parameters used is three.In the mixing multi-access resource system comprising interleaver and/or power, part can be used to join Number, i.e., two or one, to interleaver and/or power, and other multi-access resources (such as code book) are mapped.Now, for The system that multi-access resource combination includes interleaver, the mapping ruler of foundation include with reference to embodiment one for multi-access resource combination The system of power, the mapping ruler of foundation is with reference to embodiment two, and for other multi-access resources, the mapping ruler of foundation is with reference to implementation Example three.
Embodiment six：
Five embodiments above consider the mapping scheme one by one of reference signal and multi-access resource.When with preferable letter During road state, terminal can transmit multiple data flows on identical running time-frequency resource, and each data flow is provided from different multiple access Source.Now, the reference signal that a terminal uses will corresponding multiple multi-access resources.Therefore, in the present embodiment, a seed ginseng is considered Examine the one-to-many mapping mode of signal and multi-access resource.Wherein, interleaver number corresponding to a reference signal is by terminal transmission Fluxion determine.
The maximum data fluxion that considering each terminal can transmit on identical running time-frequency resource is Ns, terminal k is actual to be passed Defeated data fluxion is nk(the data fluxion of each terminal transmission can be the same or different), reference signal is by four parameters Determine, its first, second, third and fourth parameter is respectively root sequence, cyclic shift, COMB and OCC.The mapping that the present embodiment proposes Mode is a kind of extension of embodiment five.For the system using interleaver as resource, such as IDMA, first by reference to the ginseng of signal Number is that root sequence, cyclic shift, COMB and OCC produce level V mother's interleaver, and the index of the interleaver is denoted as k；Then, such as Shown in Fig. 6, terminal k utilizes level V mother interleaver k, according to certain rule, according to the index i of data flowk=0,1 ..., nk- 1, the interleaver used in each data flow is produced, wherein, nkThe data flow transmitted for terminal on identical running time-frequency resource it is total Number.So, the i-th of terminal kkThe mathematic(al) representation of the index for the interleaver that individual data flow uses is：
k+ik×NqNαNOCCNCOMB
Wherein k calculation is the same as embodiment five.It should be noted that：Here mapping ruler mathematic(al) representation is only to lift Example explanation, can only not be mapped according to the mathematic(al) representation, in actual applications, also can be by other means using above-mentioned Parameter completes mapping.Further, when producing interleaver using exponential manner, the i-th of terminal kkThe intertexture that individual data flow uses Device is：
A kind of implementation is：
πg1=πg,
So
Wherein generate interleaver pigSelection mode with embodiment one.It should be noted that four of the reference signal Parameter can be exchanged using order.When generating interleaver using three parameters of reference signal, embodiment five only need to be passed through Described 1st, 2, the interleaver that uses of 3 steps generation terminal, then pass through the index of data flow and produce the friendship that each data flow uses Knit device., it is necessary to be given birth to by the step described in embodiment one when using two of reference signal or a parameter generation interleaver The interleaver used into terminal, then the interleaver for producing each data flow and using is indexed by data flow.Here, reference signal Three, two and one parameters can be four available parameters any combination.
For by system of the power as multi-access resource, such as up power domain NOMA, with embodiment five, first by reference to The parameter of signal is that root sequence, cyclic shift, COMB and OCC produce level V power reference, the index note of the power reference Make k；Then, terminal k utilizes level V power reference k, according to certain rule, according to the index i of data flowk=0,1 ..., nk- 1, produce power corresponding to each data flow.Wherein, nkThe data flow transmitted for terminal on identical running time-frequency resource it is total Number.So, the i-th of terminal kkThe mathematic(al) representation of the index of power is corresponding to individual data flow：
k+ik×NqNαNOCCNCOMB
The wherein same example IV of k calculation.Unit power skew is denoted as P, the power reference that system is made an appointment For P0, then it is caused for multiple access access receiving power be
Pk=P0+(k+ik×NqNαNOCCNCOMB)×P.
It should be noted that：Here mapping ruler mathematic(al) representation by way of example only, not can only be according to the mathematics Expression formula is mapped, and in actual applications, also can complete mapping using above-mentioned parameter by other means.In addition, the ginseng Examine being exchanged using order for four parameters of signal.When carrying out Power Control using three parameters of reference signal, only The power for multiple access access need to be produced by the 1st described in embodiment five, 2,3 steps, then is produced often by the index of data flow The power that individual data flow uses.When carrying out Power Control using two of reference signal or a parameter, it is necessary to pass through implementation Step described in example two is used for the power of multiple access access, then indexes the power for producing each data flow and using by data flow. Here, three, two and one parameters of reference signal can be any combination of four available parameters.
For using code book and/or mode map as the system of multi-access resource, such as SCMA, MUSA, PDMA, NCMA, NOCA And RSMA, and/or interleaver can not can not be produced by IDMA systems caused by parent resource, and/or power by parent resource Ascending power domain NOMA, i.e.,：For multiple access access-in resource for it is following any one in the case of：Space resources, bit-level interweave Device, symbol level interleaver, power, nonopiate code book, orthogonal code book, scrambler, mode map pattern, with embodiment five, first will Multi-access resource is divided into NqGroup (is denoted as first layer packet), and every group has NαNOCCNCOMBNsIndividual resource, by the root for producing reference signal The index q of sequence selects group.Then, the N to each groupαNOCCNCOMBNsIndividual resource is divided into NαGroup (i.e. the second layer is grouped), Every group includes NOCCNCOMBNsIndividual resource, the group of second layer packet is determined by producing the cyclic shift α of reference signal.So Afterwards, the second layer is grouped the N in every groupOCCNCOMBNsIndividual resource is divided into NOCCGroup (i.e. third layer is grouped), every group includes NCOMBNsIt is individual Resource, by the OCC indexes n for producing reference signalOCCTo determine the group of third layer packet.Then, it is every during third layer is grouped The N of groupCOMBNsIndividual resource is divided into NCOMBGroup (i.e. the 4th layer packet), every group of NsIndividual resource, by the OCC ropes for producing reference signal Draw nOCCTo determine the group of third layer packet.Wherein NsThe maximum that can be transmitted on identical running time-frequency resource for each terminal Data fluxion.Finally by the stream index i of the transmission of terminalk=0,1,2 ..., nk- 1 selects distribution in the 4th layer of packet Resource, wherein nkThe sum and n for the data flow transmitted for terminal on identical running time-frequency resourcek≤Ns.So, the rope of resource Draw j=0,1,2 ..., NqNαNOCCNCOMBNsIt can remember with the mathematic(al) representation of reference signal and the mapping ruler for transmitting stream index Make：
J=k+ik×NqNαNOCCNCOMB,
Wherein k=q+ α × Nq+nOCC×NqNα+nCOMB×NqNαNOCCWith embodiment three.It should be noted that：Reflecting here Penetrate regular mathematic(al) representation by way of example only, can only not be mapped according to the mathematic(al) representation, in actual applications, Mapping can be completed using above-mentioned parameter by other means.According to this mapping relations, the rule of classification of resource pool is as follows：For more Location resource j, each layer packet index corresponding to it are：
■ first layer packet indexes：j mod Nq；
■ second layer packet indexes：
■ third layer packet indexes：
The 4th layer of packet index of ■：
Position in the 4th layer of packet of ■：
With Nq=2, Nα=2, NOCC=2, NCOMB=2 and NsExemplified by=2, the packet of its 32 multi-access resource referred to (mapping) mode is as shown in table 5.If the root sequence of reference signal is 0, cyclic shift 1, OCC indexes are that 0, COMB indexes are 1, then the multi-access resource index that first transport stream uses is 10, and the multi-access resource index that second transport stream uses is 26.
Root sequence of the table 2 based on reference signal, cyclic shift, the wherein packet of the resource of OCC, COMB and data flow, root Sequence number is 2, and cyclic shift number is that 2, OCC number is that 2, COMB number is 2, and maximum data fluxion is 2
In addition, four parameters of the reference signal can be exchanged using order.When three ginsengs using reference signal When counting selection multi-access resource, three layers of packet need to be only carried out, then select what is used in third layer packet by the index of data flow Multiple access access-in resource., it is necessary to carry out two layers or one layer when using two of reference signal or a parameter selection multi-access resource Packet, then the index multiple access access-in resource that selection uses in last layer of packet for passing through data flow.Here, reference signal Three, two and one parameters can be any combination of four available parameters.
For mixing multiple access system, i.e.,：In the case of multiple access access-in resource is following at least two combination：It is empty Between resource, bit-level interleaver, symbol level interleaver, power, nonopiate code book, orthogonal code book, scrambler, mode map pattern, When multi-access resource combination is complex and is difficult to produce by parent resource, above-mentioned packet mode can be continued to use, so as to complete to join Examine the mapping that signal and stream index combine with multi-access resource.Include interleaver and/or power for multi-access resource combination Situation, such as IGMA, stream index can be combined with the parameter for producing interleaver, or with the ginseng for producing power Number combines, or is combined with the parameter for producing other multi-access resources, then determines each user by mode described in the present embodiment Each data flow use multiple access access-in resource combination.
Explanation is needed exist for, because the resource used in the data flow of different terminals is by different female interleavers or difference Power reference produce or be not belonging to identical packet, therefore resource contention will not occur between multiple streams of different terminals.Separately Outside, can be dynamically by level V mother interleaver (for IDMA and IGMA systems when the data fluxion difference of each terminal transmission System) produce, produced by the 5th power reference (for ascending power domain NOMA) or from the 4th layer of packet (for SCMA, MUSA, PDMA, NCMA, NOCA, RSMA and mixing multiple access system) multi-access resource corresponding to selection.For example, in table 5, if During terminal 0 transmission, one data flow, then multi-access resource 0 need to be only chosen.When each terminal only has a data flow, i.e. n1= n2=...=1, for IDMA and IGMA systems, level V interleaver caused by the mapping mode of the present embodiment is terminal k Used interleaver；For ascending power domain NOMA, level V power reference is caused by the mapping mode of the present embodiment For power used in terminal k；For SCMA, RSMA, PDMA, MUSA, NCMA, NOCA system and multi-access resource combination conduct The system of multi-access resource, the 0th resource in the 4th layer of packet caused by mapping mode described in the present embodiment are used by terminal k Resource.
Embodiment seven：
Six embodiments above discuss the feelings of the one-to-one and one-to-many mapping of reference signal and multi-access resource respectively Condition.The present embodiment is for any multi-access resource mode described in embodiment three, and the mixing described in example IV situation one Multiple access system, consider that the size of resource pool is less than the situation of the number of available reference signal.Now, even if two terminals Used identical resource, as long as but the reference signal that uses of two terminals is different, base station still can carry out channel estimation And then the data of two terminals are detected, also, the method by being embedded into Termination ID in data still can reach differentiation eventually The purpose at end.Therefore, in the present embodiment, a kind of reference signal and the many-one mapping relations of multi-access resource are introduced.
Here, consider that reference signal is determined by four parameters, i.e. root sequence, cyclic shift, COMB and OCC, then system In the total number of users that can be accessed on identical running time-frequency resource, i.e. reference signal sum is N=NqNαNOCCNCOMB.In addition, resource pool The size of (can use codebook number) is K, wherein K ＜ N.In the present embodiment, the optional resource in resource pool is subjected to three layers of packet. The position of first, second and third layer of packet and resource in third layer packet is respectively by first, second, third and fourth parameter of reference signal Refer to.Here, can have because number of resources is less than available reference signal number, therefore when being grouped overlapping, i.e., same resource can belong to There is identical resource in multiple packets or group, mapped so as to complete the many-one of reference signal to resource.
Specifically, the present embodiment is respectively root sequence q, cyclic shift α, COMB index with first, second, third and fourth parameter nCOMBAnd OCC indexes nOCCExemplified by be introduced.Mapping relations described in the present embodiment can be described as follows：For root sequence q, Cyclic shift α, COMB index nCOMBAnd OCC indexes nOCC, its corresponding multi-access resource index (i.e. code book) is：
K=(q+ α × Nq+nOCC×NqNα+nCOMB×NqNαNOCC)mod K
It should be noted that：Here mapping ruler mathematic(al) representation by way of example only, not can only be according to the mathematics Expression formula is mapped, and in actual applications, also can complete mapping using above-mentioned parameter by other means.According to this mapping rule Then, obtained first by way of duplication and reference signal sum identical multi-access resource number.Specifically, multi-access resource k '=0, 1,2 ..., N-1, by multi-access resource k=0,1,2 ..., K-1, which is replicated, to be obtained, wherein k '=k+pK, and p is natural number.Then, provide The rule of classification in source pond is as follows：For multi-access resource k '=0,1 ..., N-1, each layer packet index corresponding to it is：
■ first layer packet indexes：k′mod Nq；
■ second layer packet indexes：
■ third layer packet indexes：
Position in the packet of ■ third layer：
As can be seen here, multi-access resource k is correspondingIndividual different reference signal.In the example as shown in table 6, Nq =2, Nα=4, NOCC=2, NCOMB=2, and K=16, then corresponding two different reference signals of each resource.If two ends The reference signal at end has identical root sequence, cyclic shift and OCC, but both COMB are different, then they use identical Multi-access resource.
Root sequence of the table 3 based on reference signal, cyclic shift, the wherein packet of the resource of OCC, COMB and data flow, root Sequence number is 2, and cyclic shift number is that 4, OCC number is that 2, COMB number is 2, and resource pool size is 16
Explanation is needed exist for, when resource pool size is equal to the number of available reference signal, that is, meets K=N, this reality Apply the mapping mode described in example and become one-to-one mapping, i.e., as described in example IV.In addition, when reference signal is by two parameters (i.e. the first and second parameters) or when being determined by three parameters (i.e. first, second, third parameter), only one layer and two need to be carried out Layer packet.
Embodiment eight：
In embodiment seven, it is contemplated that using code book as in multi-access resource system, be less than when multi-access resource is total identical Mapping ruler during number of terminals (i.e. the reference signal sum) accessed on running time-frequency resource.In the present embodiment, it is discussed further to work as Each terminal has multiple incoming streams and multi-access resource sum is less than the situation of the data flow sum accessed on identical running time-frequency resource. Specifically, multi-access resource sum is denoted as K, the number of terminals accessed in system is equal to the total N=N of reference signalqNαNOCCNCOMB。 The highest-traffic number scale that each terminal can be transmitted on identical running time-frequency resource makees Ns.In example IV, it is contemplated that K= N×NsSituation, and embodiment five consider situation be K ＜ N and Ns=1.In the present embodiment, K ＜ N × N are consideredsAnd Ns＞ 1。
In the present embodiment, the multi-access resource in resource pool is subjected to four layers of packet.First, second, third and fourth layer packet and Position of the resource in the 4th layer of packet is referred to by first, second, third and fourth parameter of reference signal and the index of data flow respectively Generation.Here, can have because number of resources is less than available reference signal number, therefore when being grouped overlapping, i.e., same resource can belong to more There is identical resource in individual packet or group, mapped so as to complete the many-one of reference signal to resource.
Exemplified by first, second, third and fourth parameter by reference signal is respectively root sequence, cyclic shift, OCC, COMB, this reality Applying the example mapping relations can be described as follows：For root sequence q, cyclic shift α, COMB index nCOMBAnd OCC indexes nOCC, and the index i of data flowk, its corresponding multi-access resource, which indexes, is：
K=q+ α × Nq+nOCC×NqNα+nCOMB×NqNαNOCC+ik×NqNαNOCCNCOMB mod K
Wherein ik=0,1,2 ..., nk- 1 and nk≤NsFor terminal k identical running time-frequency resource transmission fluxion.Need to illustrate Be：Here mapping ruler mathematic(al) representation by way of example only, can only not be mapped according to the mathematic(al) representation, In practical application, also mapping can be completed using above-mentioned parameter by other means.Rule of classification is obtained such as according to this mapping ruler Under：Obtained first by way of duplication and reference signal sum identical multi-access resource number.Multi-access resource k '=0,1,2 ..., NNs- 1, by multi-access resource k=0,1,2 ..., K-1, which is replicated, to be obtained, wherein k '=k+pK, and p is natural number.Then, will replicate Resource pool afterwards is grouped according to following rule：For multi-access resource k '=0,1 ..., NNs-1, each layer packet rope corresponding to it It is cited as：
First layer packet index：k′mod Nq；
4th layer of packet index：
Position in 4th layer of packet：
It should be noted that with described in embodiment six, when reference signal by two parameters (i.e. the first and second parameters) or When person is determined by three parameters (i.e. first, second, third parameter), two layers and three layers packet need to be only carried out.
Embodiment nine：
In eight embodiments more than, it is contemplated that how the reference distributed by base station is believed in the system based on scheduling Number it is mapped to corresponding multi-access resource.In the present embodiment, discuss mapping scheme described herein in scheduling system is exempted from Using.As shown in Fig. 2 the present embodiment specifically introduces the mapping from targeting sequencing to reference signal, provided by reference signal to multiple access The mapping scheme in source is as described in embodiment one to eight.
Targeting sequencing is grouped by following rule：M is denoted as the sum for targeting sequencing, for targeting sequencing m =0,1 ..., M-1, it is grouped into belonging to it：
First layer packet index：m mod Nq′
Second layer packet index：
Third layer packet index：
Position in third layer packet：
So, determine that the root sequence index q of reference signal is (right by the first layer packet index belonging to selected targeting sequencing Answer the 8th parameter in claim), determine reference signal followed by the second layer packet index belonging to selected targeting sequencing Cyclic shift α (the 7th parameter in corresponding claims), then utilize selected by third layer packet rope belonging to targeting sequencing Draw the index n for the OCC for determining reference signalOCC(the 6th parameter in corresponding claims), the last targeting sequencing institute selected by Position determines the COMB of reference signal index n in third layer packetCOMB(the 5th parameter in corresponding claims).This reality Example is applied to describe it needs to be determined that the situation of four parameters of reference signal, the determination order of four parameters can exchange.In addition, this Mapping ruler described in embodiment is also applied for it needs to be determined that the situation of three of reference signal and two parameters.Now need to preceding Lead sequence and carry out two layers and one layer packet.For it needs to be determined that reference signal a parameter in the case of, can be directly by leading The sequence number of sequence calculates.Three, two and one parameters of the reference signal of the design can be root sequence, cyclic shift, OCC and COMB any combination.
Explanation is needed exist for, when the sum M of targeting sequencing is less than and/or total N=equal to available reference signal NqNαNOCCNCOMBWhen, i.e. M≤N, the mapping ruler causes any targeting sequencing to be mapped to unique reference signal.Work as targeting sequencing Sum be more than available reference signal sum when, i.e. M ＞ N, the mapping ruler causes multiple targeting sequencings to be mapped to a ginseng Examine signal.Specifically, for serial number m '+pN targeting sequencing, m '≤N-1,M '+pN≤M-1, all It is mapped to and targeting sequencing m ' identical reference signals.For example, work as Nq=2, Nα=4, NOCC=2, NCOMB=2, and M=64, The targeting sequencing of serial number 0 and the targeting sequencing of serial number 32 are mapped to identical reference signal, i.e. q=0, α=0, nOCC=0, nCOMB=0.
Corresponding to the above method, present invention also provides a kind of reference signal and the mapped device of multiple access access-in resource, such as Shown in Fig. 7, the equipment includes：
Reference signal determining module, for determining reference signal used in transmitting uplink data；
Mapping block, for determining that multiple access accesses according to the mapping relations between the reference signal and multiple access access-in resource Resource；
Transport module, for being communicated using the multiple access access-in resource.
Preferably, the reference signal determining module, is additionally operable to the targeting sequencing according to selection, it is true by the rule of setting Determine the reference signal that transmitting uplink data uses.
In new multiple access technique, base station needs to inform terminal is entered using which resource by extra signaling consumption Row communication.In the present invention, it is proposed that a kind of method for determining reference signal and the mapping relations of resource pool so that base station and end End by the reference signal distributed can obtain corresponding to multiple access access-in resource information, so as to avoid extra signaling consumption and The delay of transmission.Mapping mode of the present invention can dynamically obtain according to the producing method and application scenarios of reference signal Obtain corresponding multi-access resource (can be one-to-one, one-to-many or many-one mapping).The present invention can apply simultaneously to be exempted to adjust With simple flow and reduction complexity in degree system.
The preferred embodiment of the application is the foregoing is only, not limiting the application, all essences in the application God any modification, equivalent substitution and improvements done etc., should be included within the scope of the application protection with principle.

Claims (16)

1. a kind of reference signal and the mapping method of multiple access access-in resource, it is characterised in that including：
Determine reference signal used in transmitting uplink data；
Multiple access access-in resource is determined according to the mapping relations between the reference signal and multiple access access-in resource；
Communicated using the multiple access access-in resource.
2. according to the method for claim 1, it is characterised in that：
The mapping relations according between the reference signal and multiple access access-in resource determine that multiple access access-in resource includes：With with In the parameter for producing the reference signal to index, according to multiple access access-in resource corresponding to the mapping ruler determination of setting.
3. according to the method for claim 2, it is characterised in that：
If the multiple access access-in resource is interleaver, when using T1 parameter in the parameter as index, wherein, 1 ≤ T1≤4, multiple access access-in resource corresponding to the mapping ruler determination according to setting include：
Using female interleaver for storing in advance as first order mother's interleaver, according to the rule of setting, using in the T1 parameter Any one untapped parameter is as index generation next stage mother's interleaver, by that analogy, until using the T1 parameter In last untapped parameter as index generation be used for multiple access access interleaver.
4. according to the method for claim 2, it is characterised in that：
If the multiple access access-in resource is power, when using T2 parameter in the parameter as index, wherein, 1≤ T2≤4, multiple access access-in resource corresponding to the mapping ruler determination according to setting include：
Using the power reference made an appointment as first order power reference, according to the rule of setting, do not made using the T2 parameter By the use of any one parameter generate next stage power reference as index, by that analogy, until using in the T2 parameter not Last parameter used is used for the power of multiple access access as index generation.
5. according to the method for claim 2, it is characterised in that：
When multiple access access-in resource for it is following any one or at least two combination when：Space resources, bit-level interleaver, symbol Level interleaver, power, nonopiate code book, orthogonal code book, scrambler, mode map pattern,
It is if described to be for producing the parameter of the reference signal using 1 parameter of the reference signal as index Index, include according to multiple access access-in resource corresponding to the mapping ruler determination of setting：According to multiple access corresponding to parameter selection Access-in resource；
If also included as index, this method using 2 parameters of the reference signal：The multiple access access-in resource is divided into N1Individual group, every group includes N2Individual resource；Wherein, N1And N2Of first parameter and the second parameter in respectively described 2 parameters Number；The parameter for the generation reference signal is index, is connect according to multiple access corresponding to the mapping ruler determination of setting Entering resource includes：The group of multiple access access-in resource is selected according to the first parameter, is selected according to the second parameter in selected packet group Used multiple access access-in resource；And/or
If also included as index, this method using 3 parameters of the reference signal：The multiple access access-in resource is carried out First layer is grouped, and is divided into N1Individual group, every group includes N2*N3Individual resource；First layer is grouped to every group of N2*N3Individual resource carries out second Layer packet, is divided into N2Group, every group includes N3Individual resource；Wherein, N1、N2And N3First parameter, second in respectively described 3 parameters The number of parameter and the 3rd parameter；The parameter for the generation reference signal is index, is advised according to the mapping of setting Multiple access access-in resource corresponding to then mapping out includes：The group being grouped according to the first parameter selection multiple access access-in resource in first layer Not, the group being grouped according to the second parameter selection multiple access access-in resource in the second layer, according to the 3rd parameter at selected 4th layer point Multiple access access-in resource used in selection in group group；And/or
If also included as index, this method using 4 parameters of the reference signal：The multiple access access-in resource is carried out First layer is grouped, and is divided into N1Individual group, every group includes N2*N3*N4Individual resource；First layer is grouped to every group of N2*N3*N4Individual resource is entered The row second layer is grouped, and is divided into N2Group, every group includes N3*N4Individual resource；The second layer is grouped to every group of N3*N4Individual resource carries out the 3rd Layer packet, is divided into N3Group, every group includes N4Individual resource；Wherein, N1、N2、N3And N4First parameter in respectively described 4 parameters, The number of second parameter, the 3rd parameter and the 4th parameter；The parameter for the generation reference signal is index, according to Multiple access access-in resource corresponding to the mapping ruler determination of setting includes：Multiple access access-in resource is selected in first layer according to the first parameter The group of packet, the group being grouped according to the second parameter selection multiple access access-in resource in the second layer, is selected more according to the 3rd parameter The group that location access-in resource is grouped in third layer, selected according to the 4th parameter in selected third layer packet group used in multiple access Access-in resource.
6. according to the method for claim 3, it is characterised in that：
It is described described with reference to letter for producing when a terminal uploads in identical running time-frequency resource and transports to few two data streams Number parameter for index, according to setting mapping ruler determine corresponding to multiple access access-in resource also include：It is used for multiple access by described in The interleaver of access is as afterbody mother's interleaver, based on the afterbody mother interleaver, according to the rule of setting, according to The index of data flow produces interleaver used in each data flow.
7. according to the method for claim 4, it is characterised in that：
It is described described with reference to letter for producing when a terminal uploads in identical running time-frequency resource and transports to few two data streams Number parameter for index, according to setting mapping ruler determine corresponding to multiple access access-in resource also include：It is used for multiple access by described in The power of access is as afterbody power reference, based on the afterbody power reference, according to the rule of setting, according to number Power used in each data flow is produced according to the index of stream.
8. according to the method for claim 5, it is characterised in that：
In the case of 1 parameter using the reference signal is as index, when a terminal is on identical running time-frequency resource When transmitting at least two data flows, this method also includes：The multiple access access-in resource is divided into N1Group, every group includes NsIndividual resource； Wherein, N1For the number of 1 parameter, NsThe highest-traffic that can be transmitted on identical running time-frequency resource for each terminal Number；The parameter for the generation reference signal is index, is connect according to multiple access corresponding to the mapping ruler determination of setting Entering resource includes：The group being grouped according to the first parameter selection multiple access access-in resource in first layer, exists according to the index of data flow Multiple access access-in resource used in each data flow of selection in selected second layer packet group；And/or
In the case of 2 parameters using the reference signal are as index, when a terminal is on identical running time-frequency resource When transmitting at least two data flows, this method also includes：The multiple access access-in resource is subjected to first layer packet, is divided into N1Group, Every group includes N2*NsIndividual resource；By every group of N2*NsIndividual resource carries out second layer packet, is divided into N2Group, every group includes NsIndividual money Source；Wherein, NsThe maximum data fluxion that can be transmitted on identical running time-frequency resource for each terminal；It is described for produce institute The parameter for stating reference signal is index, is included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：According to first The group that parameter selection multiple access access-in resource is grouped in first layer, multiple access access-in resource is selected in the second layer point according to the second parameter The group of group, each data flow in selected second layer packet group is selected according to the index of data flow used in multiple access access money Source；And/or
In the case of 3 parameters using the reference signal are as index, when a terminal is on identical running time-frequency resource When transmitting at least two data flows, this method also includes：The multiple access access-in resource is subjected to first layer packet, is divided into N1Group, Every group includes N2*N3*NsIndividual resource；First layer is grouped to every group of N2*N3*NsIndividual resource carries out second layer packet, is divided into N2Group, Every group includes N3*NsIndividual resource；The second layer is grouped to every group of N3*NsIndividual resource carries out third layer packet, is divided into N3Group, every group of bag Include NsIndividual resource；Wherein, NsThe maximum data fluxion that can be transmitted on identical running time-frequency resource for each terminal；It is described with It is index in the parameter for producing the reference signal, includes according to multiple access access-in resource corresponding to the mapping ruler determination of setting： The group being grouped according to the first parameter selection multiple access access-in resource in first layer, selects multiple access access-in resource to exist according to the second parameter The group of second layer packet, the group being grouped according to the 3rd parameter selection multiple access access-in resource in third layer, according to data flow Index selects multiple access access-in resource used in each data flow in selected third layer packet group；And/or
In the case of 4 parameters using the reference signal are as index, when a terminal is on identical running time-frequency resource When transmitting at least two data flows, this method also includes：The multiple access access-in resource is subjected to first layer packet, is divided into N1Group, Every group includes N2*N3*N4*NsIndividual resource；First layer is grouped to every group of N2*N3*N4*NsIndividual resource carries out second layer packet, is divided into N2Group, every group includes N3*N4*NsIndividual resource；The second layer is grouped to every group of N3*N4*NsIndividual resource carries out third layer packet, is divided into N3Group, every group includes N4*NsIndividual resource；Third layer is grouped to every group of N4*NsIndividual resource carries out the 4th layer of packet, is divided into N4Group, Every group includes NsIndividual resource；Wherein, NsThe maximum data fluxion that can be transmitted on identical running time-frequency resource for each terminal；Institute State for producing the parameter of the reference signal as index, according to multiple access access-in resource corresponding to the mapping ruler determination of setting Including：The group being grouped according to the first parameter selection multiple access access-in resource in first layer, multiple access access is selected according to the second parameter The group that resource is grouped in the second layer, the group that is grouped in third layer of multiple access access-in resource is selected according to the 3rd parameter, according to the Four parameters select the group of multiple access access-in resource packet at the 4th layer, according to the index of data flow in selected 4th layer of packet group Select multiple access access-in resource used in each data flow.
9. according to the method described in any one of claim 3 to 8, it is characterised in that：
When multiple access access-in resource is the combination of bit-level interleaver and following at least one resource：Space resources, power, symbol Level interleaver, nonopiate code book, orthogonal code book, scrambler, mode map pattern, the ginseng for the generation reference signal Number is index, is included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：
For producing all or part of parameter of the reference signal as index, determined respectively pair according to the mapping ruler of setting That answers is used for the interleaver and other multiple access access-in resources of multiple access access.
10. according to the method described in any one of claim 3 to 8, it is characterised in that：
When multiple access access-in resource is the combination of power and following at least one resource：Space resources, bit-level interleaver, symbol Level interleaver, nonopiate code book, orthogonal code book, scrambler, mode map pattern, the ginseng for the generation reference signal Number is index, is included according to multiple access access-in resource corresponding to the mapping ruler determination of setting：
For producing all or part of parameter of the reference signal as index, determined respectively pair according to the mapping ruler of setting That answers is used for the power and other multiple access access-in resources of multiple access access.
11. according to the method for claim 5, it is characterised in that：
When the sum of multiple access access-in resource is less than the sum of reference signal, this method also includes：Pass through the mode of duplication The sum of multiple access access-in resource is equal with reference signal sum, and the multiple access access-in resource after duplication is carried out into corresponding packet behaviour Make.
12. according to the method for claim 8, it is characterised in that：
When the sum of multiple access access-in resource is less than the sum and the product of terminal maximum transmitted fluxion of reference signal, this method is also Including：It is equal to the sum and terminal maximum transmitted fluxion of reference signal by the sum of the mode multiple access access-in resource of duplication Product, by after duplication multiple access access-in resource carry out corresponding to division operation.
13. according to the method described in any one of claim 1 to 12, it is characterised in that：
In the system for exempting from scheduling, this method also includes：According to the targeting sequencing of selection, by the rule of setting by targeting sequencing The parameter is determined with the mapping relations of the parameter for producing reference signal used in transmitting uplink data, the parameter is 1 to 4.
14. according to the method for claim 13, it is characterised in that：
It is described to include as targeting sequencing and for the parameter of reference signal used in producing transmitting uplink data：
If the parameter is 1, the parameter is determined using the targeting sequencing；
If the parameter is 2, targeting sequencing is subjected to first layer packet, is divided into N11Group；Existed using selected targeting sequencing Position in first layer packet determines the 6th parameter in 2 parameters, utilizes the first layer belonging to selected targeting sequencing point Group group determines the 5th parameter in 2 parameters；Wherein, N11For the number of the 5th parameter；And/or
If the parameter is 3, targeting sequencing is subjected to first layer packet, is divided into N11Group；First layer is grouped in every group Targeting sequencing carry out second layer packet, be divided into N21Group；Institute is determined using position of the selected targeting sequencing in second layer packet The 7th parameter in 3 parameters is stated, is determined using the second layer grouping group belonging to selected targeting sequencing in 3 parameters 6th parameter, the 5th parameter in 3 parameters is determined using the first layer grouping group belonging to selected targeting sequencing；Its In, N11For the number of the 5th parameter, N21For the number of the 6th parameter；And/or
If the parameter is 4, targeting sequencing is subjected to first layer packet, is divided into N11Group；First layer is grouped in every group Targeting sequencing carry out second layer packet, be divided into N21Group；The targeting sequencing second layer being grouped in every group carries out third layer packet, It is divided into N31Group；The 8th parameter in determining 4 parameters using position of the selected targeting sequencing in third layer packet, is utilized Third layer grouping group belonging to selected targeting sequencing determines the 7th parameter in 4 parameters, utilizes selected targeting sequencing Affiliated second layer grouping group determines the 6th parameter in 4 parameters, utilizes the first layer belonging to selected targeting sequencing Grouping group determines the 5th parameter in 4 parameters；Wherein, N11For the number of the 5th parameter, N21For the described 6th The number of parameter；N31For the number of the 7th parameter.
15. a kind of reference signal and the mapped device of multiple access access-in resource, it is characterised in that including：
Reference signal determining module, for determining reference signal used in transmitting uplink data；
Mapping block, for determining multiple access access money according to the mapping relations between the reference signal and multiple access access-in resource Source；
Transport module, for being communicated using the multiple access access-in resource.
16. equipment according to claim 15, it is characterised in that：
The reference signal determining module, is additionally operable to the targeting sequencing according to selection, and upstream data is determined by the rule of setting Transmit the reference signal used.
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