CN109756315A

CN109756315A - Configure the method for reference signal, the method and apparatus of data transmission

Info

Publication number: CN109756315A
Application number: CN201711079174.1A
Authority: CN
Inventors: 钱辰; 喻斌; 熊琦
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2017-11-06
Filing date: 2017-11-06
Publication date: 2019-05-14
Anticipated expiration: 2037-11-06
Also published as: CN109756315B

Abstract

The embodiment of the invention provides a kind of methods for configuring reference signal, the method and apparatus of data transmission, wherein the method for configuring reference signal includes: configuration reference signal；Send the configuration information of reference signal；Reference signal includes the first reference signal and the second reference signal, meets corresponding relationship between first reference signal and second reference signal.The method of configuration reference signal provided in an embodiment of the present invention, reference signal is configured by way of configuring the first reference signal and the second reference signal, to which the quantity of available reference signal be significantly greatly increased, improve the capacity of reference signal, carry out data transmission providing premise guarantee based on reference signal to be subsequent, the configuration information of reference signal is notified into UE, can be carried out data transmission based on the configuration information with base station convenient for UE, carry out data transmission providing reliable guarantee for UE.

Description

Configure the method for reference signal, the method and apparatus of data transmission

Technical field

The present invention relates to wireless communication technology fields, specifically, the present invention relates to it is a kind of configure reference signal method, The method and apparatus of data transmission.

Background technique

With the fast development of information industry, especially from mobile Internet and Internet of Things (IoT, internet of Things increased requirement) brings unprecedented challenge to future mobile.Such as according to International Telecommunication Union ITU Report ITU-R M. [IMT.BEYOND 2020.TRAFFIC], it is contemplated that arrive the year two thousand twenty, mobile service amount increases opposite (the 4G epoch) in 2010 will increase nearly 1000 times, and user equipment connection number also will be 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 cope with this unprecedented challenge, communications industry circle Extensive 5th third-generation mobile communication technical research (5G) is expanded with academia, towards the year two thousand twenty generation.At present in the report of ITU Accuse ITU-R M. [IMT.VISION] in discuss future 5G frame and overall goals, wherein the demand to 5G look forward to, Application scenarios and every important performance indexes elaborate.For the new demand in 5G, the report ITU-RM. of ITU [IMT.FUTURE TECHNOLOGY TRENDS] provides the relevant information of technological trend for 5G, it is intended to which solution system gulps down The amount of spitting is obviously improved, user experience consistency, scalability are to support IoT, time delay, efficiency, cost, network flexibility, new industrial The prominent questions such as the support of business and flexible spectrum utilization.

It is proposed in 5G and supports big connection amount machine type communication (massive machine-type Communication, mMTC) business demand, Connection Density will reach every million connection amount of sq-km, much higher than existing The link density for thering is standard to be supported, existing orthogonal access mode, such as orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiple Access, OFDMA) technology, it is limited to available running time-frequency resource, to limit The quantity of available reference signal further limits the quantity for the terminal having access to, and has been unable to satisfy mMTC institute in 5G Need the demand of million connections amount to be achieved.

For the ability for improving multiple access technique, some non-orthogonal multiples access (Non-orthogonal Multiple Access, NoMA) technology is suggested, and is discussed in 3GPP standards meetings as potential 5G key technology.These technologies In, including sparse CDMA access (Sparse Code Multiple Access, SCMA), the multiple access access of pattern definition (Pattern Defined Multiple Access, PDMA), multiple users share access (Multi-user Shared Access, MUSA) etc..These above-mentioned technologies are based on CDMA, and the quantity of accessing user is improved by way of spread spectrum, from And have lost certain coding gain.Above-mentioned technical proposal needs to define different codes for different accessing user's quantity simultaneously This or sequence, standardized difficulty are also larger.For non-orthogonal multiple access technology, to enable receiving end smoothly to detect simultaneously Decode the transmission data flow from different terminals, therefore, to assure that from different terminals channel, therefore receiving end can be distinguished Need to distribute different reference signals for different terminals, the quantity of reference signal will directly limit the number for the terminal having access to Amount.And if different terminals use identical or not so good orthogonality reference signal, will lead to being remarkably decreased for detection performance, very To causing base station that terminal cannot be distinguished.

Reference signal configuration mode in existing LTE can not access for orthogonal multiple access technique or non-orthogonal multiple Technology provides the effective and enough reference signals of quantity, to limit the quantity for the terminal having access to.Therefore it needs to go Effective mode improve the capacity of reference signal, that is, improve the quantity of available reference signal.

Summary of the invention

The purpose of the present invention is intended at least can solve above-mentioned one of technological deficiency, can not especially connect for non-orthogonal multiple Enter technology and effective and the enough reference signals of quantity technological deficiency is provided.

The embodiment of the present invention provides a kind of method for configuring reference signal according to one aspect, comprising:

Configure reference signal；

Send the configuration information of the reference signal；

The reference signal includes the first reference signal and the second reference signal, first reference signal and described second Meet corresponding relationship between reference signal.

The embodiment of the present invention additionally provides a kind of method of data transmission according to other side, comprising:

The configuration information of the reference signal from base station is received, the reference signal includes the first reference signal and second Reference signal meets corresponding relationship between first reference signal and second reference signal；

Determine the first reference signal and the second reference signal according to the configuration information, based on first reference signal and Second reference signal carries out data transmission with the base station.

The embodiment of the present invention additionally provides a kind of base station according on the other hand, comprising:

Configuration module, for configuring reference signal；

Sending module, for sending the configuration information of the reference signal；

The embodiment of the present invention additionally provides a kind of terminal according on the other hand, comprising:

Receiving module, for receiving the configuration information of the reference signal from base station, the reference signal includes first Reference signal and the second reference signal, meet corresponding relationship between first reference signal and second reference signal；

Transmission module, for determining the first reference signal and the second reference signal according to the configuration information, based on described First reference signal and second reference signal carry out data transmission with the base station.

The embodiment of the present invention additionally provides a kind of base station equipment, comprising: processor according on the other hand；And

Memory is configured to storage machine readable instructions, and described instruction by the processor when being executed, so that described The method that processor executes above-mentioned configuration reference signal.

The embodiment of the present invention additionally provides a kind of terminal device according on the other hand, comprising:

Processor；And

Memory is configured to storage machine readable instructions, and described instruction by the processor when being executed, so that described The method that processor executes above-mentioned data transmission.

The method of configuration reference signal provided in an embodiment of the present invention, configures reference signal, and reference signal includes the first ginseng Signal and the second reference signal are examined, meets corresponding relationship between the first reference signal and second reference signal, passes through and configure The mode of first reference signal and the second reference signal configures reference signal, so that the number of available reference signal be significantly greatly increased Amount, that is, improve the capacity of reference signal, carries out data transmission providing premise guarantee based on reference signal to be subsequent, sends ginseng Examine the configuration information of signal, i.e., the configuration information of reference signal notified into UE, consequently facilitating UE can based on the configuration information with Base station carries out data transmission, and also as UE carries out data transmission providing reliable guarantee.

The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description Obviously, or practice through the invention is recognized.

Detailed description of the invention

Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments Obviously and it is readily appreciated that, in which:

Fig. 1 is the flow diagram of the method for the configuration reference signal of one embodiment of the invention；

Fig. 2 is that the base station side of the embodiment of the present invention configures the flow diagram of main reference signal and auxiliary reference letter；

Fig. 3 is the structural schematic diagram of the reference signal of the embodiment of the present invention；

Fig. 4 is the structural schematic diagram of the main reference signal of the embodiment of the present invention；

Fig. 5 is the structural schematic diagram of the supplementary reference signal of the embodiment of the present invention；

Fig. 6 is the corresponding relationship of a kind of possible main reference signal and supplementary reference signal of the embodiment of the present invention；

Fig. 7 is a kind of running time-frequency resource position view of possible supplementary reference signal of the embodiment of the present invention；

Different auxiliary helps the time-frequency of reference signal to provide when Fig. 8 is the maximum number of terminals difference that can be carried of the embodiment of the present invention Source position schematic diagram；

Fig. 9 is the Data Detection process of the embodiment of the present invention；

Figure 10 is the flow diagram of the method for the uplink of another embodiment of the present invention；

The basic structure schematic diagram of the base station of Figure 11 another embodiment of the present invention；

Figure 12 is the basic structure schematic diagram of the terminal of another embodiment of the present invention；

Figure 13 is the block diagram that can be used for realizing the computing system of base station disclosed by the embodiments of the present invention or user equipment.

Specific embodiment

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.

Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.

Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here To explain.

Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal device " both include wireless communication The equipment of number receiver, only has the equipment of the wireless signal receiver of non-emissive ability, and including receiving and emitting hardware Equipment, have on bidirectional communication link, can carry out two-way communication reception and emit hardware equipment.This equipment It may include: honeycomb or other communication equipments, shown with single line display or multi-line display or without multi-line The honeycomb of device or other communication equipments；PCS (Personal Communications Service, PCS Personal Communications System), can With combine voice, data processing, fax and/or communication ability；PDA (Personal Digital Assistant, it is personal Digital assistants), it may include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day It goes through and/or GPS (Global Positioning System, global positioning system) receiver；Conventional laptop and/or palm Type computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its His equipment." terminal " used herein above, " terminal device " can be it is portable, can transport, be mounted on the vehicles (aviation, Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on Network termination, music/video playback terminal, such as can be PDA, MID (Mobile Internet Device, mobile Internet Equipment) and/or mobile phone with music/video playing function, it is also possible to the equipment such as smart television, set-top box.

Currently, LTE uses orthogonal reference signal design, that is, distribute to the reference signals of different terminals use it is mutually orthogonal Running time-frequency resource or mutually orthogonal reference signal sequence.For example, the reference signal in LTE-A downlink transfer uses mutually just The shorter orthogonal covering codes of the running time-frequency resource and length of friendship；The reference signal of uplink using mutually orthogonal sequence to Distinguish different reference signals.Orthogonal reference signal is capable of providing preferable channel estimation accuracy, but due to being limited to The quantity of orthogonal resource, orthogonal reference signal can not provide quantity enough reference signals.

Non-orthogonal reference signal includes using the sequence of orthogonality poor (serial correlation is poor) as reference signal, Such as use PN sequence etc.；Or it using pilot tone as a data Layer, is detected by the Iterative channel estimation and decoding of base station side It is decoded to carry out channel estimation and Data Detection.Non-orthogonal reference signal quantity is not only restricted to the limitation of orthogonal resource, therefore The reference signal quantity being capable of providing can be significantly improved.But it is constrained to non-orthogonal characteristic, using non-orthogonal ginseng The accuracy of channel estimation will be had an impact by examining signal, to influence the performance of Data Detection.

Then, the existing reference signal of LTE can not provide enough reference signal capacity, cause reference signal that will become non- The research bottleneck of orthogonal multiple access technique.

For this problem, the embodiment provides a kind of design method of reference signal, in conjunction with it is orthogonal and it is non-just Hand over the design feature of reference signal, the reference signal designed for non-orthogonal multiple access technology；Meanwhile it designing related signaling and using To notify corresponding reference signal to distribute.

Specifically, An embodiment provides a kind of methods for configuring reference signal, as shown in Figure 1, comprising: Step 110: configuration reference signal；Step 120: sending the configuration information of reference signal；Reference signal includes the first reference signal With the second reference signal, meet corresponding relationship between the first reference signal and the second reference signal.

The method of configuration reference signal provided in an embodiment of the present invention, configures reference signal, wherein reference signal includes the One reference signal and the second reference signal, meet corresponding relationship between the first reference signal and the second reference signal, pass through and configure The mode of first reference signal and the second reference signal configures reference signal, so that the number of available reference signal be significantly greatly increased Amount, that is, improve the capacity of reference signal, carries out data transmission providing premise guarantee based on reference signal to be subsequent, sends ginseng Examine the configuration information of signal, i.e., the configuration information of reference signal notified into UE, consequently facilitating UE can based on the configuration information with Base station carries out data transmission, and also as UE carries out data transmission providing reliable guarantee.

In addition, capableing of the accuracy of giving consideration to channel estimation, with reference to letter by using method provided by the embodiment of the present invention Number expense and reference signal capacity, in the case where providing acceptable reference signal quantity, it is as far as possible accurate to provide Channel estimation.In addition, the method for configuration reference signal provided by the embodiment of the present invention, can also be suitable for carrying number of terminals The case where variation, has certain flexibility.

Preferably, the first reference signal is orthogonal signalling or non-orthogonality signal；And/or second reference signal be orthogonal letter Number.

Preferably, the second reference signal is discrete type or list type.

Preferably, the differentiation mode of the second reference signal of discrete type includes at least one of the following: frequency division manner, time-division side Formula, code divide mode；The differentiation mode of second reference signal of list type includes at least one of the following: frequency division manner, time division way, Code divides mode, cyclic shift, pectinate texture.

Preferably, corresponding relationship includes: at least one following property dependent parameter and the first reference of the second reference signal The corresponding relationship of signal: running time-frequency resource, cyclic shift, pectinate texture, orthogonal covering codes code word.

Preferably, reference signal is configured, comprising: configuration reference signal resource pond；Send the configuration information packet of reference signal It includes: sending the configuration information in reference signal resource pond.

Preferably, the configuration information of reference signal includes: the property dependent parameter of the first reference signal, the second reference signal Property dependent parameter and the first reference signal and the second reference signal between corresponding informance.

Preferably, the first reference signal property dependent parameter includes at least one of the following: sequence cyclic shift, pectination knot Structure, orthogonal covering codes code word；And/or when the second reference signal is the reference signal of discrete type, the second reference signal characteristic phase It closes parameter and includes at least one of the following: running time-frequency resource or time-frequency resource allocating information, orthogonal covering codes code word；When second with reference to letter Number be list type reference signal when, the second reference signal property dependent parameter includes at least one of the following: running time-frequency resource, Sequence cyclic shift, pectinate texture, orthogonal covering codes code word.

Preferably, the configuration information for sending the reference signal includes: to notify the ginseng by any one following mode Examine the configuration information of signal: index, index combination, concordance list and index, concordance list and index combination.

Preferably, reference signal configuration information because the UE number that can carry or currently used port number it is different without Together.

Preferably, further includes: the UE number or currently used port number that notice can carry.

Preferably, further includes: configure the corresponding relationship between the reference signal and multiple access access-in resource；Wherein, with reference to letter Corresponding relationship number between multiple access access-in resource includes the corresponding of the first reference signal, the second reference signal and multiple access access-in resource Relationship.

Preferably, the corresponding relationship between reference signal and multiple access access-in resource, comprising: the first reference signal corresponding more than first Location access-in resource information, the corresponding second access-in resource information of the second reference signal.

Preferably, the first multiple access access-in resource information includes bit-level interleaver, and the second access-in resource information includes grid Mapping pattern；Alternatively, the first multiple access access-in resource information includes grid mapping pattern, the second access-in resource information includes bit-level Interleaver.

Preferably, the corresponding relationship between reference signal and multiple access access-in resource is configured, comprising: according to the first reference signal rope Draw to index with the second reference signal and calculates reference signal index；Configure reference signal index pass corresponding between multiple access access-in resource System.

Preferably, further includes: configuration multiple access access-in resource pond sends the configuration information in multiple access access-in resource pond；Institute Stating multiple access access-in resource pond includes following any case: non-orthogonal multiple accesses running time-frequency resource set and the reference signal and institute State the corresponding relationship of non-orthogonal multiple access running time-frequency resource set；Orthogonal multiple access access running time-frequency resource set and the reference signal With the corresponding relationship of the orthogonal multiple access access running time-frequency resource set；Non-orthogonal multiple accesses running time-frequency resource set, orthogonal multiple access When accessing running time-frequency resource set and the reference signal with non-orthogonal multiple access running time-frequency resource set, the access of orthogonal multiple access The corresponding relationship of frequency resource collection.

Preferably, reference signal resource pond is configured, including following any situation: configuring the first different reference signals； Configure identical first reference signal and the second different reference signals；Configure different the first reference signals and identical second Reference signal；Configure the first different reference signals and the second different reference signals.

Preferably, when the first reference signal occupies multiple symbols, the mode of the first reference signal, including following are generated A kind of situation: being respectively that each symbol configures different sequences, and passes through the combination producing multiple first of sequence between distinct symbols Reference signal；A sequence is configured for multiple symbols, and first reference signal is generated by the sequence；Match for multiple symbols A sequence is set, and multiple first reference signals are generated by code point mode.

It should be noted that the first reference signal can be specially main reference signal, the second reference signal can be specially Supplementary reference signal, configuration reference signal include configuration reference signal resource pond, and the configuration information for sending reference signal includes hair Send the configuration information in reference signal resource pond.

For the design problem of reference signal in 5G, the embodiment of the invention provides a kind of design method of reference signal, The design method includes following process:

Main reference signal and supplementary reference signal namely base station configuration reference signal resource pond is respectively configured in base station.

The configuration information of main reference signal and supplementary reference signal is passed through high-level signaling or descending control signaling by base station It is sent to terminal namely base station sends the configuration information in reference signal resource pond.

Reference signal is detected according to the configuration of reference signal and the distribution of running time-frequency resource in base station, to carry out channel estimation.

Wherein, above-mentioned process is as shown in Figure 2.

In the following, the introduction of extensive is carried out to the above embodiment of the present invention by following several preferred implementations:

Embodiment one:

In the present embodiment one, configuration reference signal includes configuration reference signal resource pond, and reference signal includes the first ginseng Signal and the second reference signal are examined, meets corresponding relationship between the first reference signal and the second reference signal；First reference signal For orthogonal signalling or non-orthogonality signal；And/or second reference signal be orthogonal signalling；Second reference signal can be discrete type Reference signal or list type reference signal；Wherein, the second reference signal of discrete type can be based on frequency division manner, time-division side Formula, in code point mode at least one of distinguish, the second reference signal of list type can be based on frequency division manner, time-division side Formula, code divide mode, cyclic shift, in pectinate texture at least one of distinguish；First reference signal and the second reference signal Between the corresponding relationship that meets include: the second reference signal at least one of following property dependent parameter and first reference signal Corresponding relationship: running time-frequency resource, cyclic shift, pectinate texture, orthogonal covering codes code word.

In the present embodiment one, a kind of design method of reference signal of specific system introduction will be combined.In the present embodiment one, Assuming that system uses non-orthogonal multiple access technology, i.e., different terminals using it is non-orthogonal or not exclusively orthogonal running time-frequency resource or It is other multiple access access-in resources, is sent for upstream data or downlink data receives.Simultaneously, it is assumed that terminal needs to send upper line number According to, and base station services multiple terminals on identical running time-frequency resource.

In method provided by the present embodiment one, reference signal is divided into two parts and is mapped.First part uses sequence The reference signal of formula, i.e., using different sequences come for distinguishing different terminals.Another part is supplementary reference signal, with from It dissipates or continuous mode occupies running time-frequency resource, is i.e. supplementary reference signal can be the supplementary reference signal of discrete type, with frequency domain Discrete or time domain discrete mode occupies running time-frequency resource, and can be the supplementary reference signal of list type, continuously square with frequency domain Formula occupies running time-frequency resource, wherein is to describe in detail in the present embodiment one by taking the supplementary reference signal of discrete type as an example.This two The schematic diagram of partial reference signal is as shown in Figure 3.

Wherein, first part's reference signal is known as main reference signal, can be located at time quantum (such as subframe, time slot or Mini time slot etc.) front, middle part or tail portion.For being located at time quantum front, main reference signal occupies k symbol, Middle k is not less than 1, occupies the bandwidth for being fully allocated to the terminal of non-orthogonal multiple access technology on each symbol.If k is greater than 1, i.e., Multiple symbols are assigned with for main reference signal, then the method for salary distribution there can be following three kinds of situations:

A. each symbol is individual sequence, provides multiple reference signals by the combination of sequence between distinct symbols.It needs Illustrate, only takes up one in multiple available symbols, and other symbols are empty transmission mode, are one of this mode Special case.

B. a sequence in sequence maps to multiple symbols, i.e., the running time-frequency resource of this multiple symbol is for carrying a sequence Column, and a main reference signal is generated by the sequence.

C. providing the orthogonality between sequence by way of code point, i.e., the identical sequence of multiple symbol transmissions passes through difference Orthogonal covering codes word different main reference signals is provided.

Wherein, Fig. 4 gives the brief description of the three of the above method of salary distribution.

It should be noted that the mode c in Fig. 4, for some reference signal, when one of those is used only in it When symbol, other symbols in addition are sky, but for other reference signals, may be occupied and some above-mentioned reference The identical or different symbol of the occupied symbol of signal.

In addition, for main reference signal, using orthogonal or quasi-orthogonal sequence.For example, using Zadoff-Chu (ZC) sequence, and provided multiple using different cyclic shifts using characteristic mutually orthogonal between ZC sequence and its cyclic shift Orthogonal sequence；Or Pseudo-noise (PN) sequence is used, multiple quasi-orthogonal sequences are provided using different cyclic shifts.

It should be noted that can be that different terminal distributions is identical or different based on the reference signal resource pond of configuration Main reference signal needs to further discriminate between channel by supplementary reference signal for being assigned with the terminal of identical main reference signal. The reference signal of discrete type can be used to reduce the expense of reference signal in supplementary reference signal.Can be used frequency division and/or time-division and/ Or the mode of code point carries out the differentiation of different reference signals.Specifically, following several modes, which can be used, provides different auxiliary ginsengs Examine signal:

A. different supplementary reference signals are distinguished using frequency division and/or time division way, for example, different supplementary reference signals accounts for With non-overlapping running time-frequency resource.

B. different supplementary reference signals, i.e., different auxiliary ginsengs are distinguished in such a way that time-division and/or frequency division and/or code divide Examining signal can be used identical running time-frequency resource, but use mutually orthogonal different orthogonal overlay code code word.

The two ways of the different supplementary reference signal of above-mentioned offer is as shown in figure 5, example shown in fig. 5 is to provide two Example when supplementary reference signal.Wherein, each supplementary reference signal in mode a uses one in two running time-frequency resources； Each supplementary reference signal in mode b occupies two whole running time-frequency resources, but uses mutually orthogonal orthogonal covering codes Code word, one of orthogonal covering codes code word are+1 ,+1；Another overlay code code word is+1, -1.

The corresponding one group of supplementary reference signal of each main reference signal, which can be running time-frequency resource or time-frequency The combination of resource and orthogonal covering codes.For example, a kind of possible corresponding relationship is, the corresponding time-frequency money of a main reference signal Source combination, supplementary reference signal on it is for distinguishing different channels；When different main reference signals correspond to non-overlapping Frequency resource, and the corresponding supplementary reference signal position of other main reference signals is sky, that is, is not used in the transmission and transmission of data. Fig. 6 is the structural schematic diagram of this kind of mode.

Alternatively possible corresponding relationship is that a main reference signal corresponds to the group of running time-frequency resource Yu orthogonal covering codes code word It closes.In this case, multiple main reference signals may be mapped to the combination of identical running time-frequency resource, need again orthogonal by thereon Overlay code code word or orthogonal covering codes code word group distinguish the corresponding different supplementary reference signals of main reference signal, i.e., main reference Signal corresponds to the supplementary reference signal using different orthogonal overlay code code word or the expression of orthogonal covering codes code word group.For example, main Reference signal 1 and 2 corresponds to identical supplementary reference signal running time-frequency resource, wherein the corresponding orthogonal covering codes of main reference signal 1 Code word is code word 0~1, and the corresponding orthogonal covering codes code word of main reference signal 2 is code word 2~3.Other main reference signals correspond to it He, it is transmitted by the equitant other running time-frequency resources of supplementary reference signal running time-frequency resource not corresponding with the two main reference signals Supplementary reference signal.

Other possible corresponding relationships are, the corresponding supplementary reference signal of multiple main reference signals uses identical a certain Running time-frequency resource, different main reference signals correspond to non-overlapping orthogonal covering codes codeword set.

It should be noted that above-mentioned corresponding relationship is it will be appreciated that main reference signal can determine certain of supplementary reference signal One characteristic, such as running time-frequency resource, orthogonal covering codes word etc..

In addition to the supplementary reference signal for distinguishing discrete type by orthogonal covering codes, supplementary reference signal can also use sequence The reference signal of formula can distinguish different supplementary reference signals by cyclic shift, pectinate texture etc. at this time.Relative to aforementioned Using the scheme of orthogonal covering codes code word, orthogonal covering codes code word is replaced with into cyclic shift and/or pectinate texture and/or orthogonal Overlay code code word.

By changing the corresponding supplementary reference signal quantity of main reference signal, to adjust the terminal that system can carry Number, or the terminal number for needing to carry according to system change the corresponding supplementary reference signal quantity of main reference signal, to adjust The quantity of whole available reference signal.For example, the number of terminals when required carrying is less, main reference signal can satisfy carried end When holding number, supplementary reference signal is not needed；When required carrying number of terminals increases, main reference signal is used alone and is unable to satisfy institute When the number of terminals of carrying, increase supplementary reference signal to increase available reference signal quantity；When the number of terminals of required carrying is held When continuous increase, using the bigger supplementary reference signal of capacity, to carry more terminals.

It should be noted that the above process can be realized by the load number of measurement access network, using load number as threshold Value, and the configuration according to the adjusting thresholds supplementary reference signal.Specifically, setting network loads number first threshold, if practical It loads number and is lower than the first threshold, then only configure main reference signal；If actual loading number is not less than first threshold, and lower than pre- The second threshold first configured, then configure main reference signal and supplementary reference signal；If actual loading number is simultaneously not less than second threshold Lower than preconfigured third threshold value, then main reference signal and the bigger supplementary reference signal of density are configured.And so on, for not With the supplementary reference signal of the network load configuration different densities of quantity, to carry different number of terminals.

Above-mentioned configuration content is configured by high-level signaling or down control channel.Meanwhile above-mentioned configuration content is suitable for The case where configuring reference signal for single or multiple terminals.

Embodiment two:

In the present embodiment two, the configuration information of reference signal includes: the property dependent parameter of the first reference signal, second Corresponding informance between the property dependent parameter of reference signal and the first reference signal and the second reference signal.First reference Characteristics of signals relevant parameter includes at least one of the following: sequence cyclic shift, pectinate texture, orthogonal covering codes code word；And/or When the second reference signal is the reference signal of discrete type, the second reference signal property dependent parameter is included at least one of the following: Running time-frequency resource or time-frequency resource allocating information, orthogonal covering codes code word；When the second reference signal is the reference signal of list type, Second reference signal property dependent parameter includes at least one of the following: running time-frequency resource, sequence cyclic shift, and pectinate texture is orthogonal Overlay code code word.The configuration information of transmission reference signal includes: the configuration by any one following mode notification reference signal Information: index, index combination, concordance list and index, concordance list and index combination.Meanwhile reference signal configuration information is because can The UE number of carrying or the difference of currently used port number and it is different.It further include notice in notification reference signal configuration information The UE number or currently used port number that can be carried.

In the present embodiment two, a kind of design method of reference signal of specific system introduction will be combined.It is adopted in the present embodiment two The reference signal design mode described in embodiment one, i.e. reference signal include main reference signal and supplementary reference signal.This reality Example two is applied by the notice and configuration mode when introducing using the reference signal design mode.Mode employed in the present embodiment two It is equally applicable to the notice and configuration of uplink reference signals and downlink reference signal.

In the reference signal design mode as provided by the embodiment of the present invention, reference signal include main reference signal with it is auxiliary Help reference signal, thus when configuring reference signal, the parameter needed to configure include: main reference signal property dependent parameter with it is auxiliary Help reference signal property dependent parameter.

Specifically, main reference signal property dependent parameter includes at least one of the following: that sequence used in main reference signal is followed Ring displacement, pectinate texture used, used orthogonal covering codes code word.If there is only a symbols for main reference signal Transmission, the then combination that three can be used carry out the instruction of main reference signal property dependent parameter.For example, definition or configuration include (each index includes possible cyclic shift, pectinate texture, orthogonal covering to the concordance list of above-mentioned three kinds of characteristics i.e. in the concordance list Code code combinatorics on words), the corresponding index of every kind of combination is defined, main reference signal is notified and configured by the index.It is other can The mode of energy is that different property dependent parameters is configured and notified using individual concordance list respectively, i.e., each characteristic phase It closes parameter and respectively corresponds a concordance list, configure and notify main reference signal by the index combination of each concordance list.

Multiple symbols need to lead to for the transmission of main reference signal according to selected main reference signal structure if it exists The mode known and configured is also different.Main reference signal is generated according to the mode of multiple sequences, then needs to notify and configure each The property dependent parameter of sequence, i.e., each sequence uses individual index configurations, for example, for the main ginseng being made of N number of sequence Signal is examined, is configured using N number of index.Wherein, unified concordance list also can be used in the property dependent parameter of this N number of sequence It is described, at this point, each main reference signal carries out the description of property dependent parameter using one of index, matches this It sets in mode, can only define one for describing the concordance list of main reference signal property dependent parameter, each of the concordance list Index includes a kind of possible cyclic shift, dressing structure, orthogonal covering codes code combinatorics on words, the characteristic of each main reference signal Relevant parameter is described with an index；Join alternatively, it is also possible to define one group of characteristic correlation for describing main reference signal sequence Several concordance list set, each concordance list are used to describe a property dependent parameter of sequence used in main reference signal, for example, fixed Adopted concordance list 1 is for describing cyclic shift；Index of definition table 2 is for describing pectinate texture；Index of definition table 3 is orthogonal for describing Overlay code code word.When notifying and configuring the main reference signal on each symbol, using including the index in each concordance list Index group carries out the description of the property dependent parameter of the main reference signal.It is also possible to describe to constitute master using N number of index group Multiple sequences of reference signal.

Main reference signal is generated according to the mode that a sequence maps to multiple symbols, then only needs to define one or a set of Concordance list comprising main reference signal property dependent parameter, index or index group by way of notified and configured.

Main reference signal is generated according to the mode (using orthogonal covering codes code word) of code point, then can define one includes The concordance list of sequence cyclic shift used in main reference signal, pectinate texture used and used orthogonal covering codes code word is used The mode of index notifies and configures main reference signal；Other possible modes include: definition comprising used in description main reference signal Multiple concordance lists of the property dependent parameter of sequence, for example, definition includes the concordance list of cyclic shift and pectinate texture, to retouch The characteristic of main reference signal sequence is stated, while re-defining the concordance list of description orthogonal covering codes, is notified and is configured with the index Orthogonal covering codes code word used；In another example each property dependent parameter uses individual concordance list respectively, respectively with index Mode notifies and configures used cyclic shift, pectinate texture and orthogonal covering codes code word.

It includes the corresponding relationship of supplementary reference signal and main reference signal that supplementary reference signal, which needs the content notified, and The property dependent parameter of supplementary reference signal.When in view of carrying different terminals number, the expense of supplementary reference signal may not phase Together, therefore the notice of supplementary reference signal and configuration need to take into account the asynchronous supplementary reference signal design of carrying terminal quantity, Namely reference signal configuration information is different due to the difference of the UE number or currently used port number that can carry.

A kind of relatively simple mode is, only supplementary reference signal structure when definition carrying number of terminals maximum.For example, one The possible mode of kind is, when configuring main reference signal, to configure the running time-frequency resource position of corresponding supplementary reference signal together, this It is separately configured and notifies outside the property dependent parameter of supplementary reference signal.Since there may be multiple running time-frequency resource positions for auxiliary Help the transmission of reference signal, it is therefore desirable to pre-define possible running time-frequency resource position, and be each possible running time-frequency resource position Calibration number (or index) is set, configures the corresponding supplementary reference signal of the main reference signal together when configuring main reference signal Running time-frequency resource position.

Fig. 7 is a possible example of foregoing description.

In Fig. 7, possible supplementary reference signal in a time quantum (such as subframe or time slot or mini time slot) Running time-frequency resource position has 4, and is numbered (index 1~index 4 in Fig. 6) according to the principle of time priority.Consider It include two adjacent resource elements in the running time-frequency resource position of each available supplementary reference signal into example shown in Fig. 7, Therefore the running time-frequency resource position of each supplementary reference signal can support 4 different reference signals by orthogonal covering codes.It needs It is noted that one of running time-frequency resource position, the running time-frequency resource position not used is used only in each supplementary reference signal For sky, it is not used in data transmission.

For that can be added in concordance list additional by the way of single index notice and configuration main reference signal sequence Field, for configuring the running time-frequency resource position of supplementary reference signal.It specifically, include that main reference signal is special in the concordance list Levy the running time-frequency resource location index of parameter and corresponding supplementary reference signal.For the characteristic of specific supplementary reference signal Relevant parameter (such as orthogonal covering codes code word) can be configured and be notified with additional concordance list.For example, using individually index Table carries out the configuration and notice of orthogonal covering codes code word used.

When using such as upper type, two indexes (i.e. main reference signal index and supplementary reference signal index) configuration is used With notification reference signal.Wherein, main reference signal indexes the property dependent parameter and the main ginseng for configuring main reference signal Examine the running time-frequency resource position of the corresponding supplementary reference signal of signal；Supplementary reference signal is indexed for configuring supplementary reference signal Feature relevant parameter, such as orthogonal covering codes code word.

Using aforesaid way, it can be ensured that how the number of terminals no matter carried changes, and can find suitable main with reference to letter The transmission of reference signal and the channel estimation of base station side are carried out number with the combination of supplementary reference signal, while being configured and notice On it is also relatively simple.But some wastes that this simple mode will will cause in resource allocation.For example, as shown in fig. 7, being System carries most 16 terminals, shares 4 main reference signals, the time-frequency of corresponding 1 supplementary reference signal of each main reference signal Resource location, while the running time-frequency resource position of each supplementary reference signal can support 4 supplementary reference signals.Although this configuration Mode can carry most 16 terminals, but when system load is less, the terminal of carrying can be only met with main reference signal When demand, it is still desirable to which the running time-frequency resource position of reserved supplementary reference signal, this has resulted in the waste of resource.

For the waste for reducing running time-frequency resource, the number of terminals that can be carried as needed adjusts available supplementary reference signal The quantity of running time-frequency resource.Specifically, according to the maximum terminal quantity that can be carried, the time-frequency of different supplementary reference signals is defined Resource location.One simple example is as shown in Figure 8.

In example shown in Fig. 8, when number of terminals is less, needs the number of terminals of carrying less on each time quantum, a institute can be used Example carries out reference signal configuration；When number of terminals change is more, the number of terminals that can be carried as needed adjusts supplementary reference signal Quantity, configured using example shown in b or c or d.

In notice, need to carry out auxiliary reference according to the number of terminals of carrying in the property dependent parameter of main reference signal The selection of the running time-frequency resource position of signal.One simple example is as shown in table 1.

Table 1: main reference signal concordance list signal

In example shown in table 1, Max.2 and Max.4 respectively indicate the case where maximum carrying number of terminals is 2 and 4.Wherein, when When maximum carrying number of terminals is 2, only can meet the needs of carrying number of terminals with main reference signal, therefore do not need using auxiliary Reference signal.It should be noted that also other relational languages such as Number of Available/Faulty Ports indicate maximum carrying number of terminals.In notification reference When signal configures, need to notify maximum carrying number of terminals or port number together, wherein port number is that base station is preconfigured.

When in this way, when configuring orthogonal covering codes code word, it is also desirable to according to maximum carrying number of terminals or end Mouth number configures orthogonal covering codes code word.One simple example is as shown in table 2.

Table 2: orthogonal covering codes code word notice signal

In example shown in table 2, if maximum carrying number of terminals or port number are 2, do not need using orthogonal covering codes；Most When big carrying number of terminals increases, the orthogonal covering codes code word or the longer orthogonal covering codes code word of length that the use of length are 2. Using such as upper type, when notifying and configuring reference signal, the parameter for needing to transmit includes main reference signal index and auxiliary reference Signal index, and the maximum number of terminals or port number of carrying.

In addition in configuration and advice method, the index and supplementary reference signal of the running time-frequency resource position of supplementary reference signal The index of feature relevant parameter configure together.It is pre-configured with concordance list, to describe the running time-frequency resource of supplementary reference signal The index of position and used orthogonal covering codes code word.One simple example is as shown in table 3.

Table 3: supplementary reference signal index signal

Index	Running time-frequency resource position	Orthogonal covering codes code word
			0	0	[+1+1]
1	0	[+1-1]
			2	1	[+1+1]
3	1	[+1-1]
			…	…	…

In table 3, the running time-frequency resource position of supplementary reference signal notifies together with orthogonal covering codes.

Similar with aforementioned exemplary, the running time-frequency resource position of supplementary reference signal and property dependent parameter are by the maximum that can carry Number of terminals or port number determine.Addition is determined by the maximum number of terminals or port number that can carry i.e. in the same concordance list The running time-frequency resource position of supplementary reference signal and corresponding orthogonal covering codes code word.One simple example is as shown in table 4.

Table 4: supplementary reference signal is determined according to port number

Wherein, different port number uses the case where supplementary reference signal different.For example, if not used auxiliary when port number is 2 Help reference signal, i.e. the running time-frequency resource position of not additional supplementary reference signal；If port number is 4, each of use auxiliary The running time-frequency resource for helping reference signal includes two resource elements, the orthogonal covering codes code word for the use of length being 2；If port number is 8 When, the running time-frequency resource of each supplementary reference signal used includes three resource elements, the orthogonal covering codes code for the use of length being 3 Word.

Aforesaid way is applied equally to the mode that main reference signal is notified and configured using the mode of index group.

In above-mentioned notice and configuration mode using concordance list, can also directly notify concordance list, or by concordance list and Respective index or the combined mode of index are notified and are configured.Although this mode signaling overheads is bigger, have more preferable Configuration and notice flexibility.Namely it can select according to their needs through index, index combination, rope in practical applications Draw the configuration information of any one mode notification reference signal in table and index, concordance list and index combination.

In addition in notice and configuration mode, the relevant information of the running time-frequency resource position of supplementary reference signal is notified independently. The relevant information can be configured by preconfigured concordance list.For example, being pre-configured with the correlation comprising running time-frequency resource position The concordance list of information, the running time-frequency resource position of instruction terminal supplementary reference signal by way of notice index；Or according to rope Regard it as and port number (number of terminals of maximum carrying) combines the running time-frequency resource position for determining supplementary reference signal.

This mode can be in conjunction with end packet, to provide bigger gain for system.Specifically, according to channel status The difference of information by end packet, organize in channel state information difference it is smaller, and channel state information differs greatly between group. In assigned references signal, same group of terminal uses identical main reference signal, and the terminal in group passes through supplementary reference signal It distinguishes.

Except the supplementary reference signal for the discrete type distinguished by orthogonal covering codes code word, supplementary reference signal can also be used The reference signal of list type can distinguish different auxiliary references by cyclic shift, pectinate texture, orthogonal covering codes etc. at this time Signal.Relative to the aforementioned scheme using orthogonal covering codes code word, orthogonal covering codes code word is replaced with into cyclic shift or pectination Both any combination or the combination of three in structure or orthogonal covering codes or three.

In aforementioned arrangements and advice method, the corresponding relationship between main reference signal and supplementary reference signal is needed to configure.With The parameter of corresponding relationship can be regarded as main reference signal and auxiliary reference letter between notice main reference signal and supplementary reference signal Number corresponding informance.

In addition in notice and configuration mode, main reference signal and supplementary reference signal can also be respectively configured.Without notifying Corresponding relationship between configuration main reference signal and supplementary reference signal.Wherein, main reference signal and supplementary reference signal are matched Foregoing manner in the present embodiment can be used in the mode of setting.

Above-mentioned configuration information can be configured by high-level signaling or Downlink Control Information.Above-mentioned configuration content is applicable in In for single or multiple terminals configure reference signal the case where.

Embodiment three:

In this implementation three, the corresponding relationship between reference signal and multiple access access-in resource is configured；Wherein, reference signal and more Corresponding relationship between the access-in resource of location includes the corresponding relationship of the first reference signal, the second reference signal and multiple access access-in resource. Corresponding relationship between reference signal and multiple access access-in resource, comprising: the corresponding first multiple access access-in resource information of the first reference signal, Second reference signal corresponds to the second access-in resource information.First multiple access access-in resource information includes bit-level interleaver, and second connects Entering resource information includes grid mapping pattern；Alternatively, the first multiple access access-in resource information includes grid mapping pattern, the second access Resource information includes bit-level interleaver.Configure the corresponding relationship between reference signal and multiple access access-in resource, comprising: according to first Reference signal index calculates reference signal index with the second reference signal index；Configure reference signal index and multiple access access-in resource Between corresponding relationship.

In the present embodiment three, a kind of reference signal suitable for non-orthogonal multiple access technology of specific system introduction will be combined Design method.In the present embodiment, it is assumed that system uses non-orthogonal multiple access technology in transmitting uplink data, and distributes non- The dedicated running time-frequency resource of orthogonal multiple access technique.I.e. system distributes private resource, and multiple terminals use on the running time-frequency resource The transmission and transmission of non-orthogonal multiple access technology progress data.

This uses the transmitting uplink data of non-orthogonal multiple access technology that the data based on scheduling can be used to transmit or exempt from The data of scheduling are transmitted.According to the data transmission for exempting from scheduling, base station needs to carry out blind examination to the signal received, to determine hair Send data transmitted by the terminal and these terminals of data.For the blind examination process for simplifying base station side, need to reference signal and Corresponding relationship is established between multiple access access-in resource.Base station is used to determine by terminal by carrying out energy measuring to reference signal Reference signal, and then can determine multiple access access-in resource that is corresponding with the reference signal that these are used, being currently being used. Wherein, multiple access access-in resource includes the mark for distinguishing terminal based on non-orthogonal multiple access technology, such as code book, spread spectrum Sequence, interleaver, scrambler etc..

In the present embodiment three, above-mentioned testing process can be described with Fig. 9.

For a kind of non-orthogonal multiple access technology, IGMA (hands over grid multiple access technology, Interleaved-GridMultiple Access), the corresponding relationship between multi-access resource provided by the present invention and reference signal provided by the present invention may be as follows:

Main reference signal corresponding bit grade interleaver, and supplementary reference signal corresponds to grid mapping pattern.

Specifically, it is numbered for bit-level interleaver, the number is known in base station and terminal side.Meanwhile to master Reference signal is numbered or indexes.Number or index to main reference signal can be according to main reference signals in previous embodiment Index (notice and configuration of main reference signal are carried out according to single concordance list), or according to the characteristic of main reference signal The index of relevant parameter combines, and is calculated.One simple examples is, if main reference signal passes through cyclic shift and pectinate texture Two concordance lists are configured, and corresponding configuration index is respectively n_CS(indicating cyclic shift) and n_comb(indicate pectination knot Structure), then the index n of main reference signal_priIt may be calculated:

n_pri=K_csn_comb+n_cs

Wherein, parameter K_csIndicate the number of cyclic shift.Or it indicates are as follows:

n_pri=K_combn_cs+n_comb

Wherein, parameter K_combIndicate the number of pectinate texture.

N is indexed in main reference signal_priOne-to-one relationship is established between bit-level interleaver index, when terminal selects Or base station shows that corresponding bit-level interleaver is used by selection when configuring the main reference signal of a certain index.

Meanwhile corresponding relationship is established between supplementary reference signal and grid mapping.Specifically, using being pre-configured with or high Layer signals or the mode of down control channel notice, and grid mapping pattern is numbered (or index), meanwhile, to auxiliary Help reference signal that (or index) is numbered.The number of supplementary reference signal is needed while considering running time-frequency resource position and institute Orthogonal covering codes code word.If not using orthogonal covering codes code word, the number (or index) of supplementary reference signal with it is auxiliary Help the index of reference signal running time-frequency resource position consistent；According to orthogonal covering codes code word, then supplementary reference signal is carried out It is needed when number while considering running time-frequency resource location index and orthogonal covering codes codewords indexes.If running time-frequency resource location index is n_tf, orthogonal covering codes codewords indexes are n_occ, then supplementary reference signal indexes n_secIt may be calculated:

n_sec=K_occn_tf+n_occ

Wherein, K_occFor the number of codewords of orthogonal covering codes.

Or:

n_sec=K_tfn_occ+n_tf

Wherein, K_tfFor the quantity of supplementary reference signal running time-frequency resource position.

Supplementary reference signal indexes n_secOne-to-one relationship is established between grid mapping pattern index, when terminal selects Or base station shows that corresponding grid mapping pattern is used by selection when configuring the supplementary reference signal of a certain index.

In addition to aforesaid way, one-to-one relationship can also be established between main reference signal and grid mapping pattern, simultaneously One-to-one relationship is established between supplementary reference signal and bit-level interleaver.

When terminal selection or base station configure the main reference signal of a certain index, that is, show corresponding grid mapping Pattern is used by selection.When terminal selection or base station configure the supplementary reference signal of a certain index, that is, show to be corresponding to it Bit-level interleaver by selection use.

It should be noted that above-mentioned mapping mode is suitable for the mode of two-stage multiple access access-in resource distinguishing terminal.Such as One-to-one relationship is established between main reference signal and the multiple access access-in resource of first order distinguishing terminal, while in supplementary reference signal One-to-one relationship is established between the multiple access access-in resource of second level distinguishing terminal.When terminal selection or base station configuration are a certain When the main reference signal of index, that is, show that the multiple access access-in resource of corresponding first order distinguishing terminal is used by selection.Work as terminal When selection or base station configure the supplementary reference signal of a certain index, that is, show the multiple access access of corresponding second level distinguishing terminal Resource is used by selection.

It is established under type such as with the non-orthogonal multiple access technology of single multiple access access-in resource distinguishing terminal, can be used Corresponding relationship between reference signal and multiple access access-in resource.First according to main reference signal index and supplementary reference signal index meter Calculate reference signal index.Specifically, if main reference signal index is n_pri, supplementary reference signal index is n_sec, then with reference to letter Number index may be calculated:

n_RS=K_secn_pri+n_sec

Wherein, K_secFor supplementary reference signal quantity.

Or:

n_RS=K_prin_sec+n_pri

Wherein, K_priFor the quantity of main reference signal.

After obtaining the index of reference signal, one-to-one close is established between reference signal index and multiple access access-in resource System.

It should be noted that aforesaid way is equally applicable to the multidimensional non-orthogonal multiple access way similar to IGMA.It is right In multidimensional non-orthogonal multiple access way, it is only necessary to calculate corresponding multiple access according to the multiple access access-in resource of each dimension index and access Resource index, and it is corresponding with corresponding reference signal index.

In addition, for the multidimensional non-orthogonal multiple access way for being similar to IGMA, except being carried out using indexing corresponding mode Corresponding relationship configuration between reference signal and multiple access access-in resource is outer, for fixing certain dimension, and another dimension is used only The case where multi-access resource distinguishing terminal, it is possible to use reference signal is indexed and is used for build between the multi-access resource index of distinguishing terminal Vertical corresponding relationship.For example, if fixing the bit-level interleaver in IGMA, the end carried out data transmission on as identical running time-frequency resource Identical bit-level interleaver is distributed at end, from different grid mapping patterns.At this point, establishing grid mapping pattern index and reference Corresponding relationship between signal index.In addition in a possibility that, if the grid mapping pattern in fixed IGMA, as identical time-frequency money The identical grid mapping pattern of the terminal distribution carried out data transmission on source, from different bit-level interleavers.At this point, establishing ratio Corresponding relationship between superfine interleaver index and reference signal index.

The corresponding relationship is notified and is configured by high-level signaling or down control channel.A kind of simple mode To pre-define the calculation of above-mentioned index, being corresponded to according to predefining and being determined in the known mode of base station and terminal Relationship obtains the corresponding multiple access access-in resource of corresponding reference signal.

Example IV:

In the present embodiment four, multiple access access-in resource pond is configured, sends the configuration information in multiple access access-in resource pond；Multiple access access Resource pool includes following any case: non-orthogonal multiple accesses running time-frequency resource set and the reference signal and described nonopiate more The corresponding relationship of location access running time-frequency resource set；Orthogonal multiple access access running time-frequency resource set and the reference signal with it is described orthogonal The corresponding relationship of multiple access access running time-frequency resource set；Non-orthogonal multiple accesses running time-frequency resource set, orthogonal multiple access access time-frequency money Source set and the reference signal and the non-orthogonal multiple access running time-frequency resource set, orthogonal multiple access access running time-frequency resource set Corresponding relationship.

In the present embodiment four, a kind of reference signal suitable for non-orthogonal multiple access technology of specific system introduction will be combined Design method.In the present embodiment four, the application in scheduling system is being exempted from using the method applied in the present invention by introducing, and be situated between Continue the method for salary distribution of multiple access access-in resource.

The multiple access access-in resource method of salary distribution exempted from scheduled transmission system includes following two:

1. configuring multiple access access-in resource pond, configured by high-level signaling or down control channel.Terminal therefrom with Equiprobability selects the transmission of a multiple access access-in resource progress upstream data.

2. being configured to exempt from the multiple access access-in resource of scheduled transmission in a manner of semi-static.Terminal is accessed using the multiple access of configuration The transmission of resource progress data.

First way in upper two ways can be used in connected state or inactive state, even Idle state Terminal or even removable uplink synchronous (i.e. random access procedure), being capable of significantly more efficient reduction signaling overheads.But due to Terminal is randomly selected for the resource of transmitting uplink data in multiple access access-in resource pond, therefore collision probability is that base station can not be controlled System.In the second way, need terminal works in linking status, therefore than the first in the reduction degree of signaling overheads Mode is slightly lower.But since multiple access access-in resource is controlled and distributed by base station, collision probability is controllable, and base station can According to loading condition dynamic or the distribution condition of semi-static adjustment multiple access access-in resource.

Using reference signal design mode provided by the embodiment of the present invention, exempt from the multiple access access of dispatching uplink data transmission The method of salary distribution of resource is as described below.

For the first multiple access access-in resource method of salary distribution, in the following way.

Multiple access access-in resource pond includes following several possible situations: can be used for the running time-frequency resource collection of non-orthogonal multiple access The running time-frequency resource set and sets of reference signals or non-orthogonal multiple of conjunction and sets of reference signals or the access of orthogonal multiple access access Running time-frequency resource set, orthogonal multiple access access running time-frequency resource set and sets of reference signals.Wherein, it needs to provide reference signal Concrete configuration be convenient for reference between signal and multiple access access-in resource to obtain the index of reference signal and establish corresponding relationship.

Specifically, using sets of reference signals and more when mode, can be respectively configured provided by the embodiment of the present invention Location access-in resource pond.Wherein, main reference signal and corresponding supplementary reference signal are respectively configured in reference signal configuration.According to pre- Corresponding relationship between the reference signal and multiple access access-in resource of the configuration of first determining or base station selects corresponding reference signal and more Location access-in resource.Aforementioned arrangements sets of reference signals includes: to configure all available main reference signal and corresponding auxiliary reference Signal specifically includes: the whole available main reference signals (including cyclic shift and pectinate texture) and corresponding auxiliary of configuration Reference signal running time-frequency resource position is helped, further includes configuring used orthogonal covering if there is corresponding orthogonal covering codes code word Code code word.

Terminal and base station can be determined accordingly by selected multiple access access-in resource with reference to letter according to corresponding relationship Number, and it is used for the transmission of upstream data.

In other mode, in the configuration in multiple access access-in resource pond, while configuring multiple access access-in resource, match together Set corresponding reference signal.For example, being indicated corresponding when configuring the multiple access access-in resource in multiple access access-in resource pond Reference signal.Using when mode, needing to indicate that corresponding main reference signal sequence is special provided by the embodiment of the present invention Property (including cyclic shift, pectinate texture, and the orthogonal covering codes code word that may be used), supplementary reference signal running time-frequency resource position It sets, orthogonal covering codes (if there is) used in supplementary reference signal.Simple example is as follows:

Table 5: the configuration example in multiple access access-in resource pond

Index	Multiple access access-in resource	Main reference signal	Supplementary reference signal
				0	Resource 0	Sequence 0	Position 0+ code word 0
1	Resource 1	Sequence 1	Position 1+ code word 1
				2	Resource 2	Sequence 2	Position 2+ code word 2
3	Resource 3	Sequence 3	Position 3+ code word 3
				…	…	…	…

In aforementioned possible mode, to configure based on multiple access access-in resource, configure supplemented by reference signal.It is possible at other Mode in, can be configured supplemented by multiple access access-in resource with configuring based on reference signal, i.e., while configuring reference signal, Configure corresponding multiple access access-in resource.

Above-mentioned multiple access access-in resource pond information is configured in a manner of semi-static by high-level signaling, or is controlled and believed by downlink Road is configured.After terminal receives multiple access access-in resource pond information, multiple access access-in resource and phase are therefrom selected with equiprobability The reference signal answered, the transmission for upstream data.

For second of multiple access access-in resource method of salary distribution, in the following way.

Base station is to need to access using non-orthogonal multiple to carry out data transmission by high-level signaling or down control channel Terminal configure corresponding multi-access resource and corresponding reference signal.When there is data transfer demands, terminal is more using configuration Location access-in resource and reference signal carry out the transmission of upstream data.

It should be noted that base station can notification reference signal configuration information and multiple access access-in resource configuration information simultaneously, or It is first notification reference signal configuration information, reinforms multiple access access-in resource configuration information.

The above embodiment of the present invention is not only that UE to be accessed provides the effective and enough reference signals of data, greatly The quantity of available reference signal is increased, and is capable of accuracy, the expense of reference signal and the reference of giving consideration to channel estimation The capacity of signal provides channel estimation as accurate as possible in the case where providing acceptable reference signal quantity.In addition, Also the case where capable of being suitable for carrying number of terminals variation, has certain flexibility.

Another embodiment of the present invention provides a kind of methods of data transmission, as shown in Figure 10, comprising: step 1010: connecing Receive the configuration information of the reference signal from base station, reference signal includes the first reference signal and the second reference signal, and first Meet corresponding relationship between reference signal and the second reference signal；Step 1020: determining the first reference signal according to configuration information With the second reference signal, carried out data transmission based on the first reference signal and the second reference signal with base station.

Preferably, the second reference signal is discrete type or list type.

Preferably, the first reference signal and the second reference signal are determined according to the configuration information, comprising: according to reference to letter Number configuration information determine the first reference signal, and according to the corresponding relationship between the first reference signal and the second reference signal, Determine the second reference signal.

Preferably, the configuration information of the reference signal from base station is received, comprising: receive the reference from base station and believe The configuration information of number resource pool.

Preferably, further includes: receive the corresponding relationship between reference signal and multiple access access-in resource.

Preferably, the corresponding relationship between reference signal and multiple access access-in resource includes the first reference signal, second with reference to letter Number and multiple access access-in resource corresponding relationship；Alternatively, being calculated based on the first reference signal index and the second reference signal index Corresponding relationship between the reference signal index arrived determining reference signal index and multiple access access-in resource.

Preferably, further includes: receive the configuration information in the multiple access access-in resource pond from base station；It is described according to the configuration Information determines the first reference signal and the second reference signal, comprising: selects from the configuration information in the reference signal resource pond The configuration information of the reference signal determines first reference signal according to the configuration information of the reference signal of selection With second reference information.

Multiple access access-in resource pond includes following any case: non-orthogonal multiple access running time-frequency resource set and reference signal with The corresponding relationship of non-orthogonal multiple access running time-frequency resource set；Orthogonal multiple access access running time-frequency resource set and reference signal with it is orthogonal The corresponding relationship of multiple access access running time-frequency resource set；Non-orthogonal multiple accesses running time-frequency resource set, orthogonal multiple access access time-frequency money The corresponding pass of source set and reference signal and non-orthogonal multiple access running time-frequency resource set, orthogonal multiple access access running time-frequency resource set System.

The terminal of the method for uplink provided in an embodiment of the present invention, data to be transmitted can be according to enough numbers of distribution Reference signal is determined in the configuration information of the reference signal of amount, and is carried out data transmission based on the reference signal with base station, really Having protected terminal can carry out data transmission in time.

Another embodiment of the present invention provides a kind of base stations, as shown in figure 11, comprising: configuration module 111 and sending module 112。

Wherein, configuration module 111, for configuring reference signal；Sending module 112, for sending the configuration of reference signal Information；Reference signal includes the first reference signal and the second reference signal, full between the first reference signal and the second reference signal Sufficient corresponding relationship.

Another embodiment of the present invention provides a kind of terminals, as shown in figure 12, comprising: receiving module 121 and transmission module 122。

Wherein, receiving module 121, for receiving the configuration information of the reference signal from base station, reference signal includes First reference signal and the second reference signal, meet corresponding relationship between the first reference signal and the second reference signal；Transmit mould Block 122, for determining the first reference signal and the second reference signal according to configuration information, based on the first reference signal and the second ginseng Signal is examined to carry out data transmission with base station.

Another embodiment of the present invention provides a kind of base station equipments, comprising: processor；And memory, it is configured to deposit Machine readable instructions are stored up, are instructed when executed by the processor, so that the method that processor executes the configuration reference signal stated.

Another embodiment of the present invention provides a kind of terminal devices, comprising: processor；And memory, it is configured to deposit Machine readable instructions are stored up, are instructed when executed by the processor, so that the method that processor executes above-mentioned data transmission.

Figure 13 is diagrammatically illustrated according to the base station that can be used for realizing the disclosure of the embodiment of the present disclosure or user equipment The block diagram of computing system.

As shown in figure 13, computing system 1300 includes processor 1310, computer readable storage medium 1320, output interface 1330 and input interface 1340.The computing system 1300 can execute the method above with reference to Fig. 1 or Figure 10 description, to match It sets reference signal and is carried out data transmission based on the reference signal.

Specifically, processor 1310 for example may include general purpose microprocessor, instruction set processor and/or related chip group And/or special microprocessor (for example, specific integrated circuit (ASIC)), etc..Processor 1310 can also include for caching The onboard storage device of purposes.The difference that processor 1310 can be for executing the method flow for referring to Fig. 1 or Figure 10 description is dynamic The single treatment unit of work either multiple processing units.

Computer readable storage medium 1320, for example, can be can include, store, transmitting, propagating or transmitting instruction Arbitrary medium.For example, readable storage medium storing program for executing can include but is not limited to electricity, magnetic, optical, electromagnetic, infrared or semiconductor system, dress It sets, device or propagation medium.The specific example of readable storage medium storing program for executing includes: magnetic memory apparatus, such as tape or hard disk (HDD)；Light Storage device, such as CD (CD-ROM)；Memory, such as random access memory (RAM) or flash memory；And/or wire/wireless communication Link.

Computer readable storage medium 1320 may include computer program, which may include code/meter Calculation machine executable instruction executes processor 1310 for example above in conjunction with Fig. 1 or Figure 10 Described method flow and its any deformation.

Computer program can be configured to have the computer program code for example including computer program module.For example, In the exemplary embodiment, the code in computer program may include one or more program modules, for example including module 1, mould Block 2 ....It should be noted that the division mode and number of module are not fixation, those skilled in the art can be according to reality Situation is combined using suitable program module or program module, when the combination of these program modules is executed by processor 1310, is made Obtaining processor 1310 can execute for example above in conjunction with method flow described in Fig. 1 or Figure 10 and its any deformation.

In accordance with an embodiment of the present disclosure, output interface 1330 and input interface 1340 can be used to execute in processor 1310 Above in conjunction with method flow described in Fig. 1 or Figure 10 and its any deformation.

Those skilled in the art of the present technique are appreciated that the present invention includes being related to for executing in operation described herein One or more equipment.These equipment can specially design and manufacture for required purpose, or also may include general Known device in computer.These equipment have the computer program being stored in it, these computer programs are selectively Activation or reconstruct.Such computer program can be stored in equipment (for example, computer) readable medium or be stored in It e-command and is coupled in any kind of medium of bus respectively suitable for storage, the computer-readable medium includes but not Be limited to any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read-Only Memory, only Read memory), RAM (Random Access Memory, immediately memory), EPROM (Erasable Programmable Read-Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or light card Piece.It is, readable medium includes by equipment (for example, computer) with any Jie for the form storage or transmission information that can be read Matter.

Those skilled in the art of the present technique be appreciated that can be realized with computer program instructions these structure charts and/or The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology neck Field technique personnel be appreciated that these computer program instructions can be supplied to general purpose computer, special purpose computer or other The processor of programmable data processing method is realized, to pass through the processing of computer or other programmable data processing methods The scheme specified in frame or multiple frames of the device to execute structure chart and/or block diagram and/or flow graph disclosed by the invention.

Those skilled in the art of the present technique have been appreciated that in the present invention the various operations crossed by discussion, method, in process Steps, measures, and schemes can be replaced, changed, combined or be deleted.Further, each with having been crossed by discussion in the present invention Kind of operation, method, other steps, measures, and schemes in process may also be alternated, changed, rearranged, decomposed, combined or deleted. Further, in the prior art to have and the step in various operations, method disclosed in the present invention, process, measure, scheme It may also be alternated, changed, rearranged, decomposed, combined or deleted.

The above is only some embodiments of the invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims

1. a kind of method for configuring reference signal characterized by comprising

Configure reference signal；

Send the configuration information of the reference signal；

The reference signal includes the first reference signal and the second reference signal, and first reference signal and described second refer to Meet corresponding relationship between signal.

2. the method according to claim 1, wherein first reference signal is orthogonal signalling or nonopiate letter Number；And/or second reference signal is orthogonal signalling.

3. the method according to claim 1, wherein second reference signal is discrete type or list type；From The differentiation mode for dissipating the second reference signal of formula includes at least one of the following: that frequency division manner, time division way, code divide mode；

The differentiation mode of second reference signal of list type includes at least one of the following: frequency division manner, time division way, code point side Formula, cyclic shift, pectinate texture.

4. the method according to claim 1, wherein

The corresponding relationship includes: that at least one following property dependent parameter and described first of second reference signal refers to The corresponding relationship of signal: running time-frequency resource, cyclic shift, pectinate texture, orthogonal covering codes code word.

5. the method according to claim 1, wherein the configuration reference signal, comprising: configuration reference signal money Source pond；

The configuration information for sending the reference signal includes: the configuration information for sending the reference signal resource pond.

6. the method according to claim 1, wherein the configuration information of the reference signal includes: described first The property dependent parameter of reference signal, the property dependent parameter of second reference signal and first reference signal and Corresponding informance between second reference signal.

7. according to the method described in claim 6, the first reference signal property dependent parameter includes at least one of the following: sequence Column cyclic shift, pectinate texture, orthogonal covering codes code word；And/or when the reference signal that second reference signal is discrete type When, the second reference signal property dependent parameter includes at least one of the following: running time-frequency resource or time-frequency resource allocating information, just Hand over overlay code code word；When second reference signal is the reference signal of list type, the second reference signal characteristic is related Parameter includes at least one of the following: running time-frequency resource, sequence cyclic shift, pectinate texture, orthogonal covering codes code word.

8. the method according to claim 1, wherein

The reference signal configuration information is different due to the difference of the UE number or currently used port number that can carry；

The method also includes:

Notify the UE number or currently used port number that can be carried.

9. the method according to claim 1, wherein further include:

Configure the corresponding relationship between the reference signal and multiple access access-in resource.

10. according to the method described in claim 9, it is characterized in that, corresponding between the reference signal and multiple access access-in resource Relationship includes: the corresponding relationship of the first reference signal, the second reference signal and multiple access access-in resource；Alternatively,

Corresponding relationship between the configuration reference signal and multiple access access-in resource include: according to the first reference signal index with Second reference signal index calculates reference signal index；Configure the reference signal index pass corresponding between multiple access access-in resource System.

11. according to the method described in claim 9, it is characterized in that, corresponding between the reference signal and multiple access access-in resource Relationship, comprising:

First reference signal corresponds to the first multiple access access-in resource information, the corresponding second access-in resource letter of second reference signal Breath.

12. the method according to claim 1, wherein further include:

Multiple access access-in resource pond is configured, the configuration information in multiple access access-in resource pond is sent；The multiple access access-in resource Chi Bao Include following any case:

Non-orthogonal multiple accesses running time-frequency resource set and the reference signal and the non-orthogonal multiple accesses running time-frequency resource set Corresponding relationship；

Pair of orthogonal multiple access access running time-frequency resource set and the reference signal and the orthogonal multiple access access running time-frequency resource set It should be related to；

Non-orthogonal multiple access running time-frequency resource set, orthogonal multiple access access running time-frequency resource set and the reference signal with it is described non- The corresponding relationship of orthogonal multiple access access running time-frequency resource set, orthogonal multiple access access running time-frequency resource set.

13. a kind of method of data transmission characterized by comprising

The configuration information of the reference signal from base station is received, the reference signal includes the first reference signal and the second reference Signal meets corresponding relationship between first reference signal and second reference signal；

The first reference signal and the second reference signal are determined according to the configuration information, based on first reference signal and described Second reference signal carries out data transmission with the base station.

14. according to the method for claim 13, which is characterized in that first reference signal is orthogonal signalling or nonopiate Signal；And/or second reference signal is orthogonal signalling.

15. according to the method for claim 13, which is characterized in that described to determine the first reference letter according to the configuration information Number and the second reference signal, comprising:

Configuration information according to the reference signal determines the first reference signal, and according to first reference signal and described the Corresponding relationship between two reference signals determines the second reference signal.

16. according to the method for claim 15, which is characterized in that the corresponding relationship includes: second reference signal At least one of following property dependent parameter and first reference signal corresponding relationship: running time-frequency resource, cyclic shift, pectination Structure, orthogonal covering codes code word.

17. according to the method for claim 13, which is characterized in that the configuration for receiving the reference signal from base station Information, comprising:

Receive the configuration information from the reference signal resource pond of base station；

It is described to determine the first reference signal and the second reference signal according to the configuration information, comprising: to be provided from the reference signal The configuration information that the reference signal is selected in the configuration information in source pond, according to the configuration information of the reference signal of selection, Determine first reference signal and second reference information.

18. according to the method for claim 13, which is characterized in that further include: receive reference signal and multiple access access-in resource Between corresponding relationship；Corresponding relationship between the reference signal and multiple access access-in resource includes the first reference signal, the second reference The corresponding relationship of signal and multiple access access-in resource.

19. according to the method for claim 13, which is characterized in that further include:

Receive the configuration information in the multiple access access-in resource pond from base station；

Multiple access access-in resource pond includes following any case:

20. a kind of base station equipment, comprising:

Processor；And

Memory is configured to storage machine readable instructions, and described instruction by the processor when being executed, so that the processing Method described in any one of device perform claim requirement 1~12.

21. a kind of terminal device, comprising:

Processor；And

Memory is configured to storage machine readable instructions, and described instruction by the processor when being executed, so that the processing Device perform claim requires method described in any one of 13-19.