CN110072286A

CN110072286A - For generating the method and corresponding user terminal, base station of reference signal sequence

Info

Publication number: CN110072286A
Application number: CN201810064697.7A
Authority: CN
Inventors: 王新; 那崇宁; 柿岛佑一; 永田聪
Original assignee: NTT Docomo Inc
Current assignee: NTT Docomo Inc
Priority date: 2018-01-23
Filing date: 2018-01-23
Publication date: 2019-07-30
Also published as: JP2019129534A

Abstract

Embodiment of the disclosure provides a kind of method and corresponding user terminal, base station for generating reference signal sequence.The quantity of candidate root is comprised determining that according to the method for the embodiment of the present disclosure executed by user terminal；Selection is used for the root of user terminal from multiple candidate roots corresponding with the quantity of candidate root；And according to selected generation reference signal sequence.The method executed from base station includes: the configuration information that reference signal sequence is sent to user terminal, wherein configuration information includes the quantity of candidate root, is determined according to the quantity of candidate root for the root of user terminal so as to user terminal and generates reference signal sequence according to the root for user terminal.

Description

For generating the method and corresponding user terminal, base station of reference signal sequence

Technical field

This disclosure relates to mobile communication field, and relate more specifically to a kind of method for generating reference signal sequence And corresponding user terminal, base station.

Background technique

In a communications system, user terminal would generally send Sounding Reference Signal (Sounding to base station Reference Signal, SRS), to estimate the up channel of the user terminal.User terminal can determine for generating root sequence Then the root of column generates SRS sequence according to the root sequence that the root generates, to generate SRS according to SRS sequence.

In the prior art, one root is selected with same select probability usually out of root value range, then by this Root is as the root for generating root sequence.Therefore, when two respective SRS of user terminal are orthogonal or respective SRS tune When degree bandwidth is completely overlapped, the method for above-mentioned generation SRS makes have good cross correlation between multiple SRS, thus Convenient for controlling the interference between multiple user terminals.However, when multiple SRS are not completely orthogonal or multiple in frequency domain When the scheduling bandwidth of SRS is not exclusively overlapped, the interference between SRS generated according to the method for above-mentioned generation SRS is larger.Therefore, A kind of flexible method is needed to determine the root for generating root sequence and corresponding SRS sequence.

Summary of the invention

According to one aspect of the disclosure, a kind of joining for generating for user terminal execution by communication system is provided The method for examining signal sequence.This method comprises: determining the quantity of candidate root；From multiple candidates corresponding with the quantity of candidate root Selection is used for the root of user terminal in root；And according to selected generation reference signal sequence.

According to another aspect of the present disclosure, a kind of believing for generating reference for base station execution by communication system is provided The method of number sequence.This method comprises: sending the configuration information of reference signal sequence to user terminal, wherein configuration information includes The quantity of candidate root, so that user terminal is determined according to the quantity of candidate root for the root of user terminal and according to for user The root of terminal generates reference signal sequence.

According to another aspect of the present disclosure, it provides a kind of for generating the user terminal of reference signal sequence.The user Terminal comprises determining that unit, is configured to determine that the quantity of candidate root；Selecting unit is configured as from the quantity with candidate root Selection is used for the root of user terminal in corresponding multiple candidate roots；And generation unit, it is configured as according to selected Generate reference signal sequence.

According to the disclosure example, determination unit is additionally configured to basis from the received number about candidate root in base station The information of amount determines the quantity of candidate root.

According to the disclosure example, selecting unit is additionally configured to the selection from the first table and is used for user terminal Root, wherein the first table includes multiple of the quantity more than or equal to candidate root.

According to the disclosure example, root included by the first table is selected from initial root set, wherein just Beginning root set is to determine that the length of ZC sequence is total band according to communication system according to the length of ZC (Zadoff-Chu) sequence What a part of wide or communication system total bandwidth determined.

According to the disclosure example, root in the first table constitutes multiple candidate roots pair, and each candidate root is to including First candidate root and the second candidate root, and the sum of the first candidate root and the second candidate root is equal to the length of ZC sequence；Selection is single When the quantity that member is additionally configured to the root included by the first table is greater than the quantity of candidate root, the candidate in the first table is deleted Root pair, the quantity of the root included by the first table are equal to the quantity of candidate root；It is selected from the first table by deleting Root for user terminal.

According to the disclosure example, root included by the first table is according to the length of ZC sequence and by screening number What determining screening section was selected from initial root set.

According to the disclosure example, root included by the first table is to carry out screening to the root in initial root set to obtain , wherein selecting unit is additionally configured to determine screening number when screening, and determines screening section according to screening number；Root The root in initial root set is screened according to the length and screening section of ZC sequence, to obtain the first the selection result；When first When the quantity of root included by the selection result is greater than predetermined quantity, screening number and screening section are updated, and according to ZC sequence The first the selection result is screened in length and updated screening section again, to obtain the second the selection result；When the second sieve When the quantity of root included by result being selected to be greater than predetermined quantity, repeat to screen again, be wrapped until obtaining with the first table The quantity of the root included consistent multiple.

According to the disclosure example, screening section is determined according to boundary parameter, boundary parameter is greater than or equal to ZC sequence The inverse of the length of column.

According to the disclosure example, screening section is determined according to boundary parameter, boundary parameter is with screening number at anti- Than.

According to the disclosure example, selecting unit is additionally configured to determine the first selection variables according to screening number, Wherein, screening number is positive integer, and the first selection variables are less than or equal to the natural number of screening number；According to screening number and First selection variables determine the second selection variables；Screening section is determined according to the second selection variables and boundary parameter；According to ZC sequence The length of column and screening section screen out root in initial root set, falling into screening section, to obtain the first the selection result.

According to the disclosure example, root included by the first table is that basis is determined by the total bandwidth of communication system Multiple subbands are wide and wide for multiple subbands, and the peak-peak average power ratio of each of initial root set piece is from initial root It is selected in set.

According to the disclosure example, root included by the first table is that the peak-peak from initial root set is average Power ratio, which is less than in the root of threshold value, to be selected.

According to the disclosure example, root included by the first table is the quantity from initial root set with candidate root It is corresponding, select in peak-peak mean power the smallest.

According to another aspect of the present disclosure, it provides a kind of for generating the base station of reference signal sequence.The base station includes: Transmission unit is configured as sending the configuration information of reference signal sequence to user terminal, and wherein configuration information includes candidate root Quantity, so as to user terminal according to the quantity of candidate root determine for user terminal root and according to for user terminal Root generates reference signal sequence.

Detailed description of the invention

The embodiment of the present disclosure is described in more detail in conjunction with the accompanying drawings, the above-mentioned and other purpose of the disclosure, Feature and advantage will be apparent.Attached drawing is used to provide to further understand the embodiment of the present disclosure, and constitutes explanation A part of book is used to explain the disclosure together with the embodiment of the present disclosure, does not constitute the limitation to the disclosure.In the accompanying drawings, Identical reference label typically represents same parts or step.

Fig. 1 is the referring to for generating by the user terminal execution in communication system according to one embodiment of the disclosure The flow chart of the method for signal sequence.

Fig. 2 is to show to carry out screening the first table of acquisition according to an exemplary root in initial root set of the disclosure The flow chart of the method for root included by lattice.

Fig. 3 is to show exemplary to select root included by the first table from initial root set according to the another of the disclosure Method flow chart.

Fig. 4 is to show the joining for generating by the base station execution in communication system of one embodiment according to the disclosure Examine the flow chart of the method for signal sequence.

The structure that Fig. 5 shows the user terminal of the execution method shown in FIG. 1 according to one embodiment of the disclosure is shown It is intended to.

Fig. 6 shows the structural schematic diagram of the base station of the execution method shown in Fig. 4 according to one embodiment of the disclosure.

Fig. 7 is the schematic diagram of the hardware configuration of related user terminal according to an embodiment of the present disclosure or base station.

Specific embodiment

In order to enable the purposes, technical schemes and advantages of the disclosure become apparent, root is described in detail below with reference to accompanying drawings According to the example embodiment of the disclosure.In the accompanying drawings, identical reference label indicates identical element from beginning to end.It is understood that The embodiments described herein is merely illustrative, and is not necessarily to be construed as limiting the scope of the present disclosure.In addition, described here User terminal may include various types of user terminals (User Equipment, UE), such as mobile terminal (or be movement Platform) or fixed terminal, however, for convenience, UE and mobile station is hereinafter sometimes interchangeably used.In addition, base Stand can for fixed station (fixed station), NodeB, eNodeB (eNB), access point (access point), sending point, Receiving point, Femto cell, cell etc., it is not limited here.

Hereinafter, describing to be used for according to the embodiment of the present disclosure by what the user terminal in communication system executed referring to Fig.1 The method for generating reference signal sequence.Fig. 1 is being held by the user terminal in communication system according to one embodiment of the disclosure The flow chart of the capable method 100 for generating reference signal sequence.As shown in Figure 1, in step s101, user terminal determines The quantity of candidate root.The quantity of candidate root can be indicated with K, such as when the quantity of candidate root is 60, K=60.In addition, in root According in embodiment of the disclosure, " root " can refer to " root ", and " candidate root " can also refer to " candidate root ".

According to the disclosure example, in step s101, user terminal can be according to received about candidate from base station The information of the quantity of root determines the quantity of candidate root.For example, user terminal can be received from base station for described later The configuration information of reference signal sequence in step S103, the configuration information may include the information of the quantity about candidate root.

In addition, the quantity of the candidate root in step S101 can be according to user terminal according to another example of the disclosure Scheduling bandwidth determine.The scheduling bandwidth of user terminal for example can be used for transmission user terminal reference signal (such as SRS bandwidth).For example, when the scheduling bandwidth of user terminal is larger, it may be determined that the quantity of biggish candidate root；And work as user When the scheduling bandwidth of terminal is smaller, it may be determined that the quantity of lesser candidate root.

Then, in step s 102, user terminal selects to use from multiple candidate roots corresponding with the quantity of candidate root In the root of user terminal.

According to the disclosure example, user terminal can select the root for user terminal from the first table, In the first table include more than or equal to multiple of quantity of candidate root.For example, the first table can be and be stored in advance in use The table of family terminal.After user terminal has determined the quantity of candidate root in step s101, user terminal can be in step Selection is used for the root of user terminal from the first table in S102.

In this example, root included by the first table can be selects from initial root set, wherein initial root collection Closing for example can be according to the determination of the length of ZC (Zadoff-Chu) sequence, and the length of ZC sequence can be according to communication system Total bandwidth or communication system total bandwidth a part determine.It is appreciated that the communication system in the disclosure is at least System including above-mentioned base station and above-mentioned user terminal.Furthermore it is possible to use N_ZCIndicate the length of ZC sequence.

For example, can determine communication system according to a part of the total bandwidth of the total bandwidth or communication system of communication system Required SRS sequence length, then the SRS sequence length according to required for communication system determines the length of ZC sequence.For example, The length of identified ZC sequence can be the largest prime number less than SRS sequence length required for communication system, in this feelings Under condition, cyclic pac king can be carried out to ZC sequence, to obtain SRS sequence length required for communication system.For another example, it determines ZC sequence length may be greater than the largest prime number of SRS sequence length required for communication system in this case can Arbitrarily to intercept segment length continuous sequence identical with SRS sequence length required for communication system in ZC sequence, to obtain Obtain SRS sequence length required for communication system.

It is with the largest prime number that the length of identified ZC sequence is greater than SRS sequence length required for communication system below How example description determines the length of ZC sequence.It is communicated for example, can be determined according to the total bandwidth and comb teeth (comb) of communication system SRS sequence length required for system, and then determine the length of ZC sequence.For example, using interlaced FDMA in communication system The total bandwidth of (Interleaved Frequency Division Multiple Access, IFDMA), communication system is In the case that 272RB and each RB include 12 subcarriers, as IFDMA comb=2, SRS sequence required for communication system Length is 272*12/2=1632, then the length of ZC sequence may be greater than the largest prime number of required SRS sequence length, i.e., N_ZC=1637, the continuous sequence conduct that a segment length is 1632 is arbitrarily intercepted in the ZC sequence that can be then 1637 from length SRS sequence.For another example, communication system use IFDMA, communication system total bandwidth is 272RB and each RB includes 12 sons In the case where carrier wave, as IFDMA comb=4, sequence length required for communication system is 272*12/4=816, then ZC sequence The length of column may be greater than the largest prime number of required sequence length, i.e. N_ZC=821, it can be then 821 from length The continuous sequence that a segment length is 816 is arbitrarily intercepted in ZC sequence as SRS sequence.

It should be noted that " total bandwidth of communication system " described herein can be according to the practical total of communication system What bandwidth determined.It is described herein " logical when the number for the RB that the actual total bandwidth of communication system includes is 4 integral multiple The total bandwidth of letter system " can be equal to the actual total bandwidth of communication system；As the RB that the actual total bandwidth of communication system includes When number is not 4 integral multiple, this paper institute can be determined in such a way that the actual total bandwidth to communication system is rounded " total bandwidth of communication system " of description.For example, the actual total bandwidth of communication system can be 273 RB, and the frequency of SRS transmission Domain scheduling granularity is 4 RB, therefore, can actual total bandwidth to communication system be rounded downwards according to 4, so that it is determined that this paper institute " total bandwidth of communication system " of description is 272 RB.

It should be understood that when a part variation of the total bandwidth of the total bandwidth of communication system or communication system, ZC sequence Length can also change therewith.That is, the different total bandwidths of communication system can correspond to the length of different ZC sequences, And the different piece of the total bandwidth of communication system can also correspond to the length of different ZC sequences.

After the length for determining ZC sequence, initial root set can be determined according to the length of ZC sequence.For example, initial root collection Conjunction may include (N_ZC- 1) a root, is expressed as q₁、q₂、……q_i、……、q_(NZC-1), wherein 1i≤(N_ZC- 1) it and is positive whole Number, and this (N_ZC- 1) a root is incremented by successively to (N from 1_ZC- 1), i.e., initial root set can be expressed as [1,2,3 ... ..., (N_ZC-1)].Then, root included by the first table can be from the initial root set [1,2,3 ... ..., (N_ZC- 1) selection in] 's.For example, can be from the initial root set [1,2,3 ... ..., (N_ZC- 1) multiple of selection predetermined quantity in], and this is pre- Fixed number amount can be equal to the quantity of root included by the first table.

According to the disclosure example, root included by the first table be can be according to the length of ZC sequence and by screening What the screening section that number determines was selected from initial root set.For example, root included by the first table can be to initial root Root in set carries out screening acquisition.Hereinafter, the example that screening process will be illustrated in combination with fig. 2.

Fig. 2 is to show to carry out screening the first table of acquisition according to an exemplary root in initial root set of the disclosure The flow chart of the method 200 of root included by lattice.As shown in Fig. 2, in step s 201, determining screening number, and according to screening Number determines screening section.For example, screening number can be positive integer, and it can be indicated with N, and in first screening, It can determine that screening number is 1, i.e. N=1.

According to the disclosure example, in step s 201, the first selection variables can also be determined according to screening number, First selection variables are less than or equal to the natural number of screening number.For example, can indicate the first selection variables with M, then M≤ N and be natural number.In addition, in step s 201, can also determine that the second screening becomes according to screening number and the first selection variables Amount.Second selection variables for example can be the first selection variables and screen the ratio of number, such as

According to another example of the disclosure, in step s 201, screening section can also be determined according to boundary parameter.Example Such as, boundary parameter can be indicated with ∈.In addition, ∈ may be greater than or the inverse of the length equal to ZC sequence, i.e.,

In addition, ∈ can also with screening number be inversely proportional, such as ∈ and screening number can satisfy following formula (1) or (2)。

∈=∈₀(1- α (N-1)) formula (2)

In formula (2), ∈₀It can be constant, and ∈ with α₀> 0,0≤α < 1.

It, in step s 201, can also be true according to the second selection variables and boundary parameter according to another example of the disclosure Surely section is screened, for example identified screening section isIt is appreciated that in step s 201, As N=1, M=0 or 1, identified screening section may include two sections, respectively [- ∈ ,+∈], [(1- ∈), (1+ ∈)]。

Then, in step S202, the root in initial root set is sieved according to the length of ZC sequence and screening section Choosing, to obtain the first the selection result.For example, can according to the length of ZC sequence and screening section by it is in initial root set, fall The root for entering to screen section screens out, to obtain the first the selection result.For example, for the root q in initial root set_i, can be according to ZC The corresponding screening parameter q of the length computation of sequence_i/N_ZC, then according to the screening parameter and sieve of each of initial root set piece The root in initial root set is screened between constituency.For example, in step s 201 determined by screening section include [- ∈ ,+ ∈], [(1- ∈), (1+ ∈)], then in step S202, by screening parameter q_i/N_ZCFall into screening section [- ∈ ,+∈], [(1- ∈), (1+ ∈)] root q_iIt screens out, is used as the first the selection result for remaining.

After step S202, method 200 can also include step S203.In step S203, when the first the selection result When the quantity of included root is greater than predetermined quantity, screening number and screening section are updated, and according to the length of ZC sequence and more The first the selection result is screened in screening section after new screens again, to obtain the second the selection result.For example, in step It, can according to the length of ZC sequence and more when the quantity of the root included by the first the selection result is greater than predetermined quantity in S203 Screening section after new screens out root in the first the selection result, falling into updated screening section, to obtain the second screening As a result.

After step S203, method 200 can also include step S204.In step S204, when the second the selection result When the quantity of included root is greater than predetermined quantity, it can repeat to screen again, included by acquisition and the first table Quantity consistent multiple of root.For example, in step S204, the quantity of the root included by the second the selection result is greater than pre- When fixed number amount, it can repeat to update screening number and screen the operation in section, it then can be repeatedly in accordance with ZC sequence Length and it is newest screening section by it is in last time the selection result, fall into it is newest screening section root screen out, until obtain with The quantity of root included by first table consistent multiple.

In the screening process described in above-mentioned steps S203 and S204, the update of screening number can be to screening time Number carries out add one operation.For example, in step s 201, times N=1 is screened, and correspondingly, the first selection variables M=0 or 1, second Selection variablesOr 1, and screening section is [- ∈ ,+∈], [(1- ∈), (1+ ∈)]；Then, in step S203, more Screening times N=2 after new, correspondingly, updated first selection variables M=0,1 or 2, updated second selection variablesOr 1 and updated screening section be [- ∈ ,+∈],[(1- ∈), (1+ ∈)]；Then, in step S204, updated screening times N=3, correspondingly, updated first selection variables M=0, 1,2 or 3, updated second selection variablesOr 1 and updated screening section be [- ∈ ,+∈],[(1- ∈), (1+ ∈)].

A specific example of step S201~S204 is provided below with reference to the update of above-mentioned screening number.For example, in step In rapid S201, N=1, M=0 or 1, identified screening section may include two sections, respectively [- ∈ ,+∈], [(1- ∈), (1+ ∈)].Then, in step S202, according to the screening parameter of each of initial root set piece and screening section [- ∈ ,+∈], [(1- ∈), (1+ ∈)] to initial root set [1,2,3 ... ..., (N_ZC- 1) root in] is screened, and obtains One the selection result.Then, in step S203, the quantity of the root included by the first the selection result obtained in step S202 is big When predetermined quantity, update screening number, i.e. N=2, correspondingly, M=0,1 or 2, then updated screening section may include [- ∈ ,+∈],[(1- ∈), (1+ ∈)], then according to each of first the selection result piece Screening parameter and screening section [- ∈ ,+∈],[(1- ∈), (1+ ∈)] is to the first the selection result It is screened, to obtain the second the selection result；Then, in step S204, when the second the selection result obtained in step S203 When the quantity of included root is greater than predetermined quantity, updates and screen number, i.e. N=3, correspondingly, and M=0,1,2 or 3, then it updates Screening section afterwards may include [- ∈ ,+∈],[(1- ∈), (1+ ∈)], then according to the screening parameter of each of second the selection result piece and screening section [- ∈ ,+∈,[(1- ∈), (1+ ∈)] sieves the second the selection result Choosing, to obtain third the selection result；The operation for repeating above-mentioned judgement, update and screening, included by acquisition and the first table Quantity consistent multiple of root.

Root included by the first table, which is hereinbefore described, can be according to the length of ZC sequence and true by screening number What fixed screening section was selected from initial root set.According to another example of the disclosure, root included by the first table may be used also Being selected from initial root set according to the power parameter of each of initial root set piece.Power parameter can be for example Papr (Peak to Average Power Ratio, PAPR).Various ways can be used to obtain PAPR, Cubic metric (Cubic Metric, CM) can be used for example to indicate PAPR.

Fig. 3 is to show exemplary to select the first table to be wrapped from initial root set according to the another of the embodiment of the present disclosure The flow chart of the method 300 of the root included.In the example depicted in fig. 3, root included by the first table can be according to by communicating Multiple subbands that the total bandwidth of system determines it is wide and for multiple subbands wide, the maximum PAPR of each of initial root set piece It is selected from initial root set.

Specifically, as shown in figure 3, in step S301, determine that multiple subbands are wide according to the total bandwidth of communication system.Example Such as, subband width can be the bandwidth for being used for transmission the SRS of user terminal, for example when the total bandwidth of communication system is 272RB, use In transmission user terminal SRS bandwidth can for 4RB, 8RB, 12RB ..., 272RB, then multiple subbands it is wide can for 4RB, 8RB, 12RB ..., multiple bandwidth of 272RB.

Then in step s 302, wide for the multiple subbands determined in step S301, it calculates every in initial root set The maximum CM of a root.

For example, in step s 302, for the root q in initial root set_i, calculate separately corresponding with multiple subband width Then multiple CM select maximum CM as each maximum CM from multiple CM, such as following formula (3) is shown:

In formula (3), C_SRSIt is given q_iAnd m_SRSWhen time domain SRS calculated CM,It is root q_iMaximum CM.

Then, in step S303, the first table institute is selected from the root that the maximum CM in initial root set is less than threshold value Including root.For example, the threshold value in step S303 can be predefined according to the quantity of candidate root, and then, in step S303, The maximum CM calculated in step S302 the root for being less than threshold value is remained, as root included by the first table.

Alternatively, after step S302, method 300 can also include step S303 '.In step S303 ', from first Root included by the first table is selected in corresponding with the quantity of candidate root in beginning root set, maximum CM the smallest.For example, In step S303 ', the maximum CM each of calculated in step S302 piece can be sorted from small to large, then by preceding K root It remains, as root included by the first table.

So far, it has been described that the process of root included by the first table is selected from initial root set.In addition, above It has been noted that the first table may include multiple of the quantity more than or equal to candidate root.

According to the disclosure example, when the quantity of the root included by the first table is equal to the quantity of candidate root, In step S102, user terminal can select a root from the first table.

According to another example of the disclosure, when the quantity of the root included by the first table is greater than the quantity of candidate root, In step S102, user terminal can first be deleted the root in the first table, the number of the root included by the first table Amount is equal to the quantity of candidate root, and a root is then selected from the first table by deleting.

For example, the root in the first table may be constructed multiple candidate roots pair, each candidate root to include the first candidate root and Second candidate root, and the sum of the first candidate root and the second candidate root is equal to the length of ZC sequence.For example, the first candidate root can be with For q_i, second candidate root can be (N_ZC-q_i).It is appreciated that when initial root collection is combined into [1,2,3 ... ..., (N_ZC- 1) when], First candidate root can be 1 and the second candidate root can be (N_ZC- 1) or the first candidate root can be 2 and the second candidate root can To be (N_ZC- 2), etc..

Then, when the quantity of the root included by the first table is greater than the quantity of candidate root, user terminal can delete the Candidate root pair in one table, the quantity of the root included by the first table are equal to the quantity of candidate root, then from by deleting Selection is used for the root of user terminal in the first table removed.For example, the quantity of root included by the first table is 66, and candidate root Quantity K=60, then user terminal can arbitrarily delete three pairs of candidate roots pair in the first table, to obtain 60 candidates Then root selects the root for being used for user terminal from this 60 candidate roots.In addition, can be used as the by the first table deleted Two tables store in the user terminal.

In addition, the first table can also include each index.Moreover, working as root included by the first table from small to large When being arranged successively, index corresponding with each is also to be arranged successively from small to large.

In addition, having already mentioned above can select multiple to generate the first table from initial root set.According to this public affairs The example opened, the modulation system that can be used according to communication system and comb teeth corresponding with modulation system are from initial root collection Multiple are selected in conjunction to generate the first table.For example, being selected from initial root set when the comb teeth that communication system uses is smaller The quantity for the root selected out is larger, so that root included by the first table is more；When the comb teeth that communication system uses is larger, The quantity for the root selected from initial root set is smaller, so that root included by the first table is less.

Be given below communication system use IFDMA, communication system total bandwidth is 272RB and each RB includes 12 sons In the case where carrier wave, as IFDMA comb=2, K=60, according to above-mentioned method 200 shown in Fig. 2 first table obtained An example, as shown in table 1.First table shown in table 1 includes 66 roots being arranged successively from small to large, and this 66 The index of root is 0~65.

One example of 1 first table of table

The quantity for the root that first table includes as shown in table 1 is greater than 60, in step s 102, user terminal Three pairs of candidate roots pair in first table can be deleted, to obtain 60 candidate roots.For example, user terminal can delete this First three in one table and rear three candidate roots, to obtain 60 candidate roots.This 60 candidate roots can form the second table, And in the second table this 60 candidate roots have new index, i.e., 0~59, as shown in table 2.Then, user terminal can be with Selection is used for the root of the user terminal from second table.

One example of 2 second table of table

Be given below communication system use IFDMA, communication system total bandwidth is 272RB and each RB includes 12 sons In the case where carrier wave, as IFDMA comb=4, K=60, according to above-mentioned method 200 shown in Fig. 2 first table obtained Another example, as shown in table 3.First table shown in table 3 includes 64 roots being arranged successively from small to large, and this 64 The index of root is 0~63.

Another example of 3 first table of table

The quantity for the root that first table includes as shown in table 3 is greater than 60, in step s 102, user terminal Two pairs of candidate roots pair in first table can be deleted, to obtain 60 candidate roots.For example, user terminal can delete this The first two and latter two root in one table, to obtain 60 candidate roots.This 60 candidate roots can form the second table, and In the second table this 60 candidate roots have new index, i.e., 0~59, as shown in table 4.Then, user terminal can be from this Selection is used for the root of the user terminal in second table.

Another example of 4 second table of table

Be given below communication system use IFDMA, communication system total bandwidth is 272RB and each RB includes 12 sons In the case where carrier wave, as IFDMA comb=2, K=60, according to above-mentioned method 300 shown in Fig. 3 first table obtained An example, as shown in table 5.First table shown in table 5 includes 60 roots being arranged successively from small to large, and this 60 The index of root is 0~59.

One example of 5 first table of table

Be given below communication system use IFDMA, communication system total bandwidth is 272RB and each RB includes 12 sons In the case where carrier wave, as IFDMA comb=4, K=60, according to above-mentioned method 300 shown in Fig. 3 first table obtained Another example, as shown in table 6.First table shown in table 6 includes 60 roots being arranged successively from small to large, and this 60 The index of root is 0~59.

Another example of 6 first table of table

In addition, being as previously mentioned, in step s 102, user terminal can select to be used for the user from the first table The root of terminal.For example, user terminal can be from the received configuration information in base station in addition to including about candidate before step S102 The information of the quantity of root can also include port number, bandwidth, hop count, the precoding strategy for being used for transmission reference signal sequence Deng.Then, in step s 102, user terminal can calculate the rope for being used for the user terminal according to the configuration information received Draw, then by corresponding of index identical with index calculated, in the first table as the root for being used for the user terminal.

In addition, above also it has been noted that when a part of the total bandwidth of the total bandwidth or communication system of communication system becomes When change, the length of ZC sequence can also change therewith.It should therefore be understood that the different total bandwidths of communication system can correspond to not The different piece of the total bandwidth of same the first table and communication system can also correspond to the first different tables.Therefore, with It can store multiple first tables in the terminal of family, then user terminal can be determine according to actual needs from which first table Selection is used for the root of the user terminal.

Furthermore, it should also be appreciated that user terminal can not also store the first table, but directly adopt as shown in Figure 2 Method 200 or method 300 as shown in Figure 3 screen the root in initial root set corresponding with candidate root quantity to obtain Multiple candidate roots, then from multiple candidate root selection be used for user terminal root.

Then, in step s 103, user terminal root according to selected in step S102 generates reference signal sequence.From The process that root generates reference signal sequence can be realized using routine techniques.For example, user terminal can be first according to step S102 Selected in root generate root sequence, reference signal sequence, such as SRS sequence are then generated according to root sequence.

The method for generating reference signal sequence executed by the user terminal in communication system through this embodiment, It can determine relatively small-scale candidate root, and therefrom selection is suitable for the root of user terminal, rather than directly from a wide range of Candidate root in selection be used for user terminal root, so that the root for user terminal neatly be determined.

In the following, being referred to referring to what Fig. 4 description base station by communication system corresponding with method 100 executed for generating The method of signal sequence.Fig. 4 is to show the use executed by the base station in communication system of one embodiment according to the disclosure In the flow chart for the method 400 for generating reference signal sequence.

As shown in figure 4, base station sends the configuration information of reference signal sequence to user terminal in step S401, wherein Configuration information includes the information of the quantity about candidate root, so that user terminal is determined according to the quantity of candidate root for user's end The root at end and according to for user terminal root generate reference signal sequence.

According to the disclosure example, in addition to the information of the quantity about candidate root, configuration information can also include using In the port number of transmission of reference signals sequence, bandwidth, hop count, precoding strategy etc..

Before step S401, method 400 can also include step S401 '.In step S401 ', base station can basis The scheduling bandwidth of user terminal determines the quantity of candidate root.The scheduling bandwidth of user terminal, which for example can be, is used for transmission user's end The bandwidth of the reference signal (such as SRS) at end.For example, base station can be whole for user when the scheduling bandwidth of user terminal is larger End determines the quantity of biggish candidate root；And when the scheduling bandwidth of user terminal is smaller, base station can determine for user terminal The quantity of lesser candidate root.

According to the disclosure example, base station, which can also be executed, to be selected from initial root set included by the first table Root and the operation for storing the first table, this executes with user terminal and selects root included by the first table simultaneously from initial root set Store the first table operation be it is similar, details are not described herein.

According to the disclosure example, base station can not also store the first table, but directly adopt as shown in Figure 2 Method 200 or method 300 as shown in Figure 3 screen the root in initial root set corresponding with candidate root quantity to obtain Multiple candidate roots, then from multiple candidate root selection be used for user terminal root, and by selected notice to use Family terminal.

The method for generating reference signal sequence executed by the base station in communication system through this embodiment, can be with It determines relatively small-scale candidate root, and therefrom selection is suitable for the root of user terminal, rather than is directly waited from large-scale Root of the selection for user terminal in root is selected, so that the root for user terminal neatly be determined.

In the following, describing the user of the execution method 100 shown in FIG. 1 according to one embodiment of the disclosure referring to Fig. 5 Terminal 500.Fig. 5 shows the user terminal 500 of the execution method 100 shown in FIG. 1 according to one embodiment of the disclosure Structural schematic diagram.Since the function of user terminal 500 is identical as the details of method described above with reference to Fig. 1-Fig. 3, because This for simplicity, omits the detailed description to identical content herein.

As shown in figure 5, user terminal 500 includes determination unit 510, it is configured to determine that the quantity of candidate root；Selection It is whole for the user to be configured as the selection from multiple candidate roots corresponding with the quantity of the candidate root for unit 520 The root at end；And generation unit 530, it is configured as according to selected generation reference signal sequence.In addition to these three lists Other than member, user terminal 500 can also include other component, however, due to the content of these components and the embodiment of the present disclosure without It closes, therefore omits its diagram and description herein.

According to the disclosure example, determination unit 510 be can be configured to according to received about candidate root from base station The information of quantity determine the quantity of candidate root.For example, user terminal can be received from base station is used for life described later At the configuration information for the reference signal sequence that unit 530 generates, which may include the letter of the quantity about candidate root Breath.

According to the disclosure example, selecting unit 520 can select the root for user terminal from the first table, Wherein the first table includes multiple of the quantity more than or equal to candidate root.For example, the first table can be and be stored in advance in The table of user terminal.After determination unit 510 has determined the quantity of candidate root, selecting unit 520 can be from the first table Selection is used for the root of user terminal.

According to the disclosure example, root included by the first table be can be according to the length of ZC sequence and by screening What the screening section that number determines was selected from initial root set.For example, root included by the first table can be to initial root Root in set carries out screening acquisition.For example, selecting unit 520 can determine screening number, and determined according to screening number Screen section.It for example, screening number can be positive integer, and can be indicated with N, and in first screening, can determined Screening number is 1, i.e. N=1.

According to the disclosure example, selecting unit 520 can also determine the first selection variables according to screening number, should First selection variables are less than or equal to the natural number of screening number.For example, can indicate the first selection variables with M, then M≤N It and is natural number.In addition, selecting unit 520 can also determine the second selection variables according to screening number and the first selection variables. Second selection variables for example can be the first selection variables and screen the ratio of number, such as

According to another example of the disclosure, selecting unit 520 can also determine screening section according to boundary parameter.For example, Boundary parameter can be indicated with ∈.In addition, ∈ may be greater than or the inverse of the length equal to ZC sequence, i.e.,

In addition, ∈ can also with screening number be inversely proportional, such as ∈ and screening number can satisfy above formula (1) or (2)。

According to another example of the disclosure, selecting unit 520 can also be determined according to the second selection variables and boundary parameter Section is screened, for example identified screening section isIt is appreciated that as N=1, M=0 or 1, identified screening section may include two sections, respectively [- ∈ ,+∈], [(1- ∈), (1+ ∈)].

Then, selecting unit 520 can carry out the root in initial root set according to the length and screening section of ZC sequence Screening, to obtain the first the selection result.For example, selecting unit 520 can will be initial according to the length of ZC sequence and screening section Root in root set, falling into screening section screens out, to obtain the first the selection result.For example, for the root in initial root set q_i, can be according to the corresponding screening parameter q of length computation of ZC sequence_i/N_ZC, then according to each of initial root set piece The root in initial root set is screened in screening parameter and screening section.For example, for identified screening section include [- ∈ ,+∈], [(1- ∈), (1+ ∈)], selecting unit 520 can be by screening parameter q_i/N_ZCFall into screening section [- ∈ ,+∈], The root q of [(1- ∈), (1+ ∈)]_iIt screens out, is used as the first the selection result for remaining.

According to another example of the disclosure, when the quantity of the root included by the first the selection result is greater than predetermined quantity, choosing Screening number and screening section can also be updated by selecting unit 520, and according to the length of ZC sequence and updated screening section pair First the selection result is screened screens again, to obtain the second the selection result.For example, working as root included by the first the selection result Quantity when being greater than predetermined quantity, selecting unit 520 can also be according to the length of ZC sequence and updated screening section by the Root in one the selection result, falling into updated screening section screens out, to obtain the second the selection result.

According to another example of the disclosure, when the quantity of the root included by the second the selection result is greater than predetermined quantity, choosing Selecting unit 520 can also repeat to screen again, consistent multiple with the quantity of root included by the first table until obtaining Root.For example, when the quantity of the root included by the second the selection result is greater than predetermined quantity, selecting unit 520 can also repeat into Row updates screening number and screens the operation in section, and then can repeat will according to the length of ZC sequence and newest screening section Root in last time the selection result, falling into newest screening section screens out, until obtaining the number with root included by the first table Measure consistent multiple.

According to the disclosure example, root included by the first table be can be according to true by the total bandwidth of communication system Fixed multiple subbands are wide and wide for multiple subbands, and the maximum PAPR of each of initial root set piece is from initial root set Selection.

For example, selecting unit 520 can determine that multiple subbands are wide according to the total bandwidth of communication system.It can for example, subband is wide To be to be used for transmission the bandwidth of the SRS of user terminal, for example when the total bandwidth of communication system is 272RB, be used for transmission user The bandwidth of the SRS of terminal can for 4RB, 8RB, 12RB ..., 272RB, then multiple subbands it is wide can for 4RB, 8RB, 12RB ..., multiple bandwidth of 272RB.

According to the disclosure example, wide for determining multiple subbands, selecting unit 520 can calculate initial root collection The maximum CM of each of conjunction piece.

For example, for the root q in initial root set_i, selecting unit 520 can calculate separately corresponding with multiple subband width Multiple CM, then select maximum CM as each maximum CM from multiple CM, as shown in above formula (3).

According to the disclosure example, selecting unit 520 can be less than threshold value from the maximum CM in initial root set Root included by the first table is selected in root.For example, then can predefine threshold value according to the quantity of candidate root will be counted The root that the maximum CM of calculation is less than threshold value remains, as root included by the first table.

Alternatively, selecting unit 520 can also from initial root set CM corresponding with the quantity of candidate root, maximum Root included by the first table is selected in the smallest.For example, each calculated maximum CM can be arranged from small to large Then sequence remains preceding K root, as root included by the first table.

According to the disclosure example, when the quantity of the root included by the first table is equal to the quantity of candidate root, choosing A root can be selected from the first table by selecting unit 520.

According to another example of the disclosure, when the quantity of the root included by the first table is greater than the quantity of candidate root, choosing Can first the root in the first table be deleted by selecting unit 520, and the quantity of the root included by the first table is equal to candidate Then the quantity of root selects a root from the first table by deleting.

Then, when the quantity of the root included by the first table is greater than the quantity of candidate root, selecting unit 520 can be deleted Candidate root pair in first table, the quantity of the root included by the first table is equal to the quantity of candidate root, then from process Selection is used for the root of user terminal in the first table deleted.For example, the quantity of root included by the first table is 66, and it is candidate The quantity K=60 of root, then selecting unit 520 can arbitrarily delete three pairs of candidate roots pair in the first table, to obtain 60 Then candidate root selects the root for being used for user terminal from this 60 candidate roots.In addition, can make by the first table deleted In the user terminal for the storage of the second table.

According to the disclosure example, generation unit 530 can be according to 520 selected generation references of selecting unit Signal sequence.The process for generating reference signal sequence from root can be realized using routine techniques.For example, generation unit 530 can be with First according to 520 selected generation root sequences of selecting unit, reference signal sequence, such as SRS are then generated according to root sequence Sequence.

The user terminal of the method for generating reference signal sequence of execution through this embodiment, can determine opposite Small range of candidate root, and therefrom selection is suitable for the root of user terminal, rather than directly selected from large-scale candidate root The root for user terminal is selected, so that the root for user terminal neatly be determined.

In the following, describing the base station of the execution method 400 shown in Fig. 4 according to one embodiment of the disclosure referring to Fig. 6 600.Fig. 6 shows the structural representation of the base station 600 of the execution method 400 shown in Fig. 4 according to one embodiment of the disclosure Figure.Since the function of base station 600 is identical as the details of method described above with reference to Fig. 4, herein in order to simple For the sake of, omit the detailed description to identical content.

As shown in fig. 6, base station 600 includes transmission unit 610, it is configured as sending reference signal sequence to user terminal Configuration information, wherein the configuration information includes the information of the quantity about candidate root, so that user terminal is according to candidate root Quantity determine for the root of user terminal and according to the root generation reference signal sequence for user terminal.In addition to this Other than a unit, base station 600 can also include other component, however, due to the content of these components and the embodiment of the present invention without It closes, therefore omits its diagram and description herein.

According to the disclosure example, base station 600 can also include determination unit 620, be configured as according to user The scheduling bandwidth of terminal determines the quantity of candidate root.The scheduling bandwidth of user terminal, which for example can be, is used for transmission user terminal The bandwidth of reference signal (such as SRS).For example, determination unit 620 can be user when the scheduling bandwidth of user terminal is larger Terminal determines the quantity of biggish candidate root；And when the scheduling bandwidth of user terminal is smaller, determination unit 620 can be user Terminal determines the quantity of lesser candidate root.

The base station of the method for generating reference signal sequence of execution through this embodiment, can determine relatively small The candidate root of range, and therefrom selection is suitable for the root of user terminal, rather than select to use directly from large-scale candidate root In the root of user terminal, so that the root for user terminal neatly be determined.

In addition, block diagram used in the explanation of above embodiment shows the block as unit of function.These functional blocks (structural unit) is realized by any combination of hardware and/or software.In addition, the realization rate of each functional block does not limit especially It is fixed.It, can also will be in object that is, each functional block can be realized by the device physically and/or in logic combined The more than two devices mutually separated in reason and/or in logic are directly and/or indirectly (such as by wiredly and/or wirelessly) even It connects to realize by above-mentioned multiple devices.

For example, equipment (such as first communication equipment, the second communication equipment or flight user of one embodiment of the disclosure Terminal etc.) it can be used as the computer for the processing of wireless communications method for executing the disclosure to function.Fig. 7 is according to this public affairs The schematic diagram of the hardware configuration of the related equipment 700 (base station or user terminal) for the embodiment opened.Above-mentioned equipment 700 (base station or user terminal) can be used as physically include processor 710, memory 720, memory 730, communication device 740, The computer installation of input unit 750, output device 760, bus 770 etc. is constituted.

In addition, in the following description, text as " device " also can be replaced circuit, equipment, unit etc..User is whole The hardware configuration of end 500 and base station 600 may include one or more each devices shown in figure, can not also include part dress It sets.

It for example, processor 710 only illustrates one, but may be multiple processors.Furthermore, it is possible to pass through a processing Device executes processing, simultaneously, successively or using other methods can also execute processing by more than one processor.Separately Outside, processor 710 can be installed by more than one chip.

Each function of equipment 600 is for example accomplished in that by the way that defined software (program) is read into processing On the hardware such as device 710, memory 720, so that processor 710 be made to carry out operation, the communication carried out by communication device 740 is controlled System, and the reading and/or write-in of the data in memory 720 and memory 730 are controlled.

Processor 710 for example makes operating system carry out work to integrally control computer.Processor 710 can be with By including central processing unit (CPU, the Central with the interface of peripheral device, control device, arithmetic unit, register etc. Processing Unit) it constitutes.For example, above-mentioned determination unit, adjustment unit etc. can be realized by processor 710.

In addition, processor 710 fills program (program code), software module, data etc. from memory 730 and/or communication It sets 740 and reads into memory 720, and execute various processing according to them.As program, can use executes computer above-mentioned At least part of program in the movement illustrated in embodiment.For example, the determination unit of user terminal 500 can pass through guarantor It, for other functional blocks, can also be same there are being realized in memory 720 and by processor 710 come the control program to work Ground is realized.

Memory 720 is computer-readable recording medium, such as can be by read-only memory (ROM, Read Only Memory), programmable read only memory (EPROM, Erasable Programmable ROM), electric programmable read-only memory It is (EEPROM, Electrically EPROM), random access memory (RAM, Random Access Memory), other appropriate At least one of storage medium constitute.Memory 720 is referred to as register, cache, main memory (primary storage Device) etc..Memory 720 can save the executable program (journey for implementing method involved in an embodiment of the disclosure Sequence code), software module etc..

Memory 730 is computer-readable recording medium, such as can be by floppy disc (flexible disk), soft (note Volume trade mark) disk (floppy disk), magneto-optic disk (for example, CD-ROM (CD-ROM (Compact Disc ROM) etc.), number General optic disc, blue light (Blu-ray, registered trademark) CD), moveable magnetic disc, hard disk drive, smart card, flash memory device (example Such as, card, stick (stick), cipher key drivers (key driver)), magnetic stripe, database, server, other storage mediums appropriate At least one of constitute.Memory 730 is referred to as auxilary unit.

Communication device 740 is that (transmission connects for carrying out the hardware of communication of intercomputer by wired and or wireless network Receiving unit), such as the also referred to as network equipment, network controller, network interface card, communication module etc..Communication device 740 is in order to realize for example Frequency division duplex (FDD, Frequency Division Duplex) and/or time division duplex (TDD, Time Division It Duplex), may include HF switch, duplexer, filter, frequency synthesizer etc..For example, above-mentioned transmission unit, reception Unit etc. can be realized by communication device 740.

Input unit 750 be receive from external input input equipment (for example, keyboard, mouse, microphone, switch, Button, sensor etc.).Output device 760 is to implement the output equipment to external output (for example, display, loudspeaker, hair Optical diode (LED, Light Emitting Diode) lamp etc.).In addition, input unit 750 and output device 760 may be The structure (such as touch panel) of one.

In addition, each device such as processor 710, memory 720 is connected by the bus 770 for being communicated to information.Always Line 770 can be made of single bus, can also be made of bus different between device.

In addition, base station 600 and user terminal 500 may include microprocessor, digital signal processor (DSP, Digital Signal Processor), specific integrated circuit (ASIC, Application Specific Integrated Circuit), Programmable logic device (PLD, Programmable Logic Device), field programmable gate array (FPGA, Field Programmable Gate Array) etc. hardware, some or all of each functional block can be realized by the hardware.For example, Processor 710 can be installed by least one of these hardware.

(variation)

In addition, closing the term illustrated in this manual and/or carrying out understanding required term, Ke Yiyu to this specification Term with same or like meaning is interchangeable.For example, channel and/or symbol may be signal (signaling).In addition, letter Number or message.Reference signal can also be referred to as RS (Reference Signal), can also according to be applicable in standard With referred to as pilot tone (Pilot), pilot signal etc..In addition, component carrier (CC, Component Carrier) be referred to as it is small Area, frequency carrier, carrier frequency etc..

In addition, the information illustrated in this specification, parameter etc. can be indicated with absolute value, can also with specified value Relative value indicates, can also be indicated with corresponding other information.For example, radio resource can be referred to by defined index Show.It further, can also be clear disclosed different from this specification using formula of these parameters etc..

Title in the present specification for parameter etc. is in any way all and non-limiting.For example, various Channel (physical uplink control channel (PUCCH, Physical Uplink Control Channel), physical down link Control channel (PDCCH, Physical Downlink Control Channel) etc.) and information unit can be by any suitable When title identify that therefore the various titles distributed for these various channels and information unit are any Aspect is all and non-limiting.

Information, signal for illustrating in this specification etc. can be used in various different technologies any one carry out table Show.For example, data, order, instruction, information, signal, bit, symbol, the chip etc. that may be referred in above-mentioned whole explanations It can be indicated by voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or photon or their any combination.

In addition, information, signal etc. can be exported from upper layer to lower layer, and/or from lower layer to upper layer.Information, signal etc. can To be inputted or be exported via multiple network nodes.

Input or information, the signal of output etc. can be stored in specific place (such as memory), can also pass through management Table is managed.Input or information, the signal of output etc. can be capped, update or supplement.Information, signal of output etc. can be with It is deleted.Information, signal of input etc. can be addressed to other devices.

The notice of information is not limited to the mode/embodiment illustrated in this specification, can also by other methods into Row.For example, the notice of information can be by physical layer signaling (for example, down link control information (DCI, Downlink Control Information), uplink control information (UCI, Uplink Control Information)), upper layer letter Enable (for example, wireless heterogeneous networks (RRC, Radio Resource Control) signaling, broadcast message (Master Information Block (MIB, Master Information Block), system information block (SIB, System Information Block) etc.), media deposit Take control (MAC, Medium Access Control) signaling), other signals or their combination implemented.

In addition, physical layer signaling is referred to as (the 1st layer/the 2nd layer) control information of L1/L2 (L1/L2 controls signal), L1 Control information (L1 controls signal) etc..In addition, RRC signaling is referred to as RRC information, such as can be established for RRC connection (RRC Connection Setup) message, RRC connection reconfiguration set (RRC Connection Reconfiguration) message Deng.In addition, MAC signaling can for example pass through MAC Control Element (MAC CE (Control Element)) Lai Tongzhi.

In addition, the notice (for example, the notice of " for X ") of provisioning information is not limited to explicitly carry out, it can also be implicitly (for example, by the notice without the provisioning information, or the notice for passing through other information) carry out.

, can be by value (the 0 or 1) Lai Jinhang indicated by 1 bit about judgement, it can also be by by true (true) or false (false) indicate true-false value (Boolean) Lai Jinhang, can also by the comparison (such as compared with specified value) of numerical value come It carries out.

No matter software is referred to as software, firmware, middleware, microcode, hardware description language, or is claimed with other titles Exhale, should all be broadly interpreted to be order, command set, code, code segment, program code, program, subprogram, software module, Application program, software application, software package, routine, subroutine, object, executable file, execution thread, step, function Deng.

In addition, software, order, information etc. can be transmitted or received via transmission medium.For example, when using cable technology (coaxial cable, optical cable, twisted pair, digital subscriber line (DSL, Digital Subscriber Line) etc.) and/or wireless skill When art (infrared ray, microwave etc.) sends software from website, server or other remote resources, these cable technologies and/or wireless Technology includes in the definition of transmission medium.

Term as " system " and " network " used in this specification may be used interchangeably.

In the present specification, " base station (BS, Base Station) ", " wireless base station ", " eNB ", " gNB ",

Term as " cell ", " sector ", " cell group ", " carrier wave " and " component carrier " may be used interchangeably.

Base station is sometimes also with fixed station (fixed station), NodeB, eNodeB (eNB), access point (access Point), the terms such as sending point, receiving point, Femto cell, cell are called.

Base station can accommodate one or more (such as three) cells (also referred to as sector).When base station accommodates multiple cells When, the entire overlay area of base station can be divided into multiple smaller regions, and each smaller region can also pass through base station System (for example, indoor small base station (remote radio head (RRH,

Remote Radio Head))) communication service is provided.Term as " cell " or " sector " refers to be covered at this A part or entirety of the base station of communication service and/or the overlay area of base station sub-system are carried out in lid.

In the present specification, " mobile station (MS, Mobile Station) ", " user terminal (user terminal) ", Term as " user apparatus (UE, User Equipment) " and " terminal " may be used interchangeably.Mobile station sometimes also by Those skilled in the art with subscriber board, mobile unit, subscriber unit, radio-cell, remote unit, mobile device, wireless device, Wireless telecom equipment, remote equipment, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, hand-held set, User agent, mobile client, client or several other terms appropriate are called.

In addition, the wireless base station in this specification can also be replaced with user terminal.For example, for by wireless base station and Communication between user terminal replaces with the structure of the communication of (D2D, Device-to-Device) between multiple user terminals, can also be with Using each mode/embodiment of the disclosure.At this point it is possible to by the first communication equipment in above-mentioned equipment 600 or second lead to Believe function possessed by equipment as function possessed by user terminal.In addition, the texts such as " uplink " and " downlink " can also replace It is changed to " side ".For example, up channel also could alternatively be side channel.

Equally, the user terminal in this specification can also be replaced with wireless base station.At this point it is possible to by above-mentioned user Function possessed by terminal is as function possessed by the first communication equipment or the second communication equipment.

In the present specification, the specific action for being set as carrying out by base station is according to circumstances sometimes also by its superior node (upper node) Lai Jinhang.Obviously, in being made of one or more network nodes (network nodes) with base station In network, the various movements that carry out for the communication with terminal room can by base station, in addition to base stations one Above network node is (it is contemplated that such as mobile management entity (MME, Mobility Management Entity), service Gateway (S-GW, Serving-Gateway) etc., but not limited to this) or their combination carry out.

Each mode/the embodiment illustrated in this specification may be used alone, can also be used in combination, and can also hold It switches over during row to use.In addition, the processing step of each mode/embodiment illustrated in this specification, sequence, stream Journey figure etc. is as long as no contradiction, so that it may replacement sequence.For example, the method illustrated in this manual is closed, with illustrative suitable Sequence gives various step unit, and is not limited to the particular order provided.

Each mode/the embodiment illustrated in this specification can be applied to utilize long term evolution (LTE, Long Term Evolution), senior long term evolution (LTE-A, LTE-Advanced), surmount long term evolution (LTE-B, LTE-Beyond), be super Grade third generation mobile communication systems (SUPER 3G), Advanced International Mobile Communications (IMT-Advanced), the 4th third-generation mobile communication system Unite (4G, 4th generation mobile communication system), the 5th Generation Mobile Communication System (5G, 5th Generation mobile communication system), following wireless access (FRA, the Future Radio Access), new wireless access technology (New-RAT, Radio Access Technology), new wireless (NR, New Radio), New wireless access (NX, New radio access), new generation of wireless access (FX, Future generation radio Access), global system for mobile communications (GSM (registered trademark), Global System for Mobile Communications), CDMA accesses 2000 (CDMA2000), super mobile broadband (UMB, Ultra Mobile Broadband), IEEE 720.11 (Wi-Fi (registered trademark)), IEEE 720.16 (WiMAX (registered trademark)), IEEE 720.20, ultra wide band (UWB, Ultra-WideBand), bluetooth (Bluetooth (registered trademark)), other channel radios appropriate The system of letter method and/or the Successor-generation systems extended based on them.

" according to " used in this specification is such to be recorded, as long as not being expressly recited in other paragraphs, and unexpectedly Taste " according only to ".In other words, " according to " such record refers to both " according only to " and " according at least to ".

Any reference used in this specification to the unit for using the titles such as " first ", " second ", non-comprehensive limit The quantity or sequence of these fixed units.These titles can be used as the facilitated method for distinguishing more than two units and in this specification Middle use.Therefore, be not meant to two units or first unit only can be used must for the reference of first unit and second unit If must be taken the lead with dry form in second unit.

Term as " judgement (determination) (determining) " used in this specification includes diversified sometimes Movement.For example, about " judgement (determination) ", it can be by calculating (calculating), reckoning (computing), processing (processing), (deriving), investigation (investigating), search (looking up) (such as table, data are derived Search in library or other data structures), confirmation (ascertaining) etc. is considered as carrying out " judgement (determination) ".In addition, closing In " judgement (determinations) ", can also by reception (receiving) (such as receiving information), transmission (transmitting) (such as Send information), input (input), output (output), access (accessing) (such as data in access memory) etc. view To be to carry out " judgement (determination) ".In addition, about " judgement (determination) ", it can also be by solution (resolving), selection (selecting), (choosing) is selected, (establishing) is established, compares (comparing) etc. and be considered as " sentence Disconnected (determination) ".That is, several movements can be considered as carrying out " judgement (determination) " about " judgement (determination) ".

" (connected) of connection " used in this specification, " in conjunction with (coupled) " as term or it Any deformation refer to direct or indirect any connection or combination between two or more units, may include with Lower situation: between two units of mutual " connection " or " in conjunction with ", there are one or more temporary locations.Between unit In conjunction with or connection can be physically, be also possible in logic, or the combination that both can also be.For example, " connection " Also it could alternatively be " access ".When using in the present specification, it is believed that two units be by using one or one with On electric wire, cable, and/or printing electrical connection, and as several non-limiting and non-exclusive example, by using With radio frequency field, microwave region, and/or the electromagnetic energy of wavelength in light (both visible light and black light) region etc., quilt It mutually " connects " or " in conjunction with ".

Used in this specification or claims " including (including) ", " include (comprising) " and When their deformation, these terms and term " having " are equally open.Further, in this specification or claim Term used in book " or (or) " is not exclusive or.

The disclosure is described in detail above, but it will be apparent to a person skilled in the art that the disclosure not limits The fixed embodiment illustrated in this manual.The disclosure is not departing from the disclosure determined by the record of claims Under the premise of objective and range, modifications and changes mode can be used as to implement.Therefore, the record of this specification is said with example For the purpose of bright, for purposes of this disclosure not with the meaning of any restrictions.

Claims

1. a kind of method for generating reference signal sequence is executed by the user terminal in communication system, which comprises

Determine the quantity of candidate root；

Selection is used for the root of the user terminal from multiple candidate roots corresponding with the quantity of the candidate root；And

According to selected generation reference signal sequence.

2. the method as described in claim 1, wherein the quantity of the determining candidate root includes:

According to the quantity for determining the candidate root from the information of the received quantity about the candidate root in base station.

3. it is method according to claim 1 or 2, wherein described from multiple candidate roots corresponding with the quantity of the candidate root Middle selection includes: for the root of the user terminal

Selection is used for the root of the user terminal from the first table, wherein first table includes being greater than or equal to the time Multiple for selecting the quantity of root.

4. method as claimed in claim 3, wherein

Root included by first table is selected from initial root set, wherein the initial root set is according to ZC (Zadoff-Chu) length of sequence determines that the length of the ZC sequence is the total bandwidth or institute according to the communication system State a part determination of the total bandwidth of communication system.

5. method as claimed in claim 4, wherein

Root in first table constitutes multiple candidate roots pair, and each candidate root is to candidate including the first candidate root and second Root, and the sum of first candidate root and second candidate root is equal to the length of the ZC sequence；

The root of the selection for the user terminal from multiple candidate roots corresponding with the quantity of the candidate root also wraps It includes:

When the quantity of the root included by first table is greater than the quantity of the candidate root, delete in first table Candidate root pair, the quantity of the root included by first table are equal to the quantity of the candidate root；

The selection from the first table includes: for the root of the user terminal

Selection is used for the root of the user terminal from the first table by deleting.

6. method as claimed in claim 4, wherein root included by first table is the length according to the ZC sequence It is selected from initial root set with the screening section determined by screening number.

7. method as claimed in claim 6, wherein

Root included by first table is that screening acquisition is carried out to the root in initial root set, wherein when screening

It determines screening number, and screening section is determined according to the screening number；

The root in initial root set is screened according to the length of the ZC sequence and the screening section, to obtain the first sieve Select result；

When the quantity of the root included by first the selection result is greater than predetermined quantity, screening number and screening section are updated, And first the selection result is screened again according to the length of the ZC sequence and updated screening section, to obtain Second the selection result；

When the quantity of the root included by second the selection result is greater than predetermined quantity, repeat to screen again, until obtaining It obtains consistent multiple with the quantity of root included by the first table.

8. the boundary parameter is greater than or waits the method for claim 7, wherein determining screening section according to boundary parameter In the inverse of the length of the ZC sequence.

9. the method for claim 7, wherein determining screening section, the boundary parameter and screening time according to boundary parameter Number is inversely proportional.

10. method as claimed in claim 8 or 9, wherein

It is described to determine that screening section includes: according to the screening number

The first selection variables are determined according to the screening number, wherein the screening number is positive integer, and first screening becomes Amount is less than or equal to the natural number of the screening number；

The second selection variables are determined according to the screening number and first selection variables；

It is described to determine that screening section includes: according to boundary parameter

Screening section is determined according to second selection variables and the boundary parameter；

It is described that the root in initial root set is screened according to the length and the screening section of the ZC sequence, to obtain One the selection result includes:

Root in initial root set, falling into the screening section is sieved according to the length of the ZC sequence and the screening section Fall, to obtain the first the selection result.

11. method as claimed in claim 4, wherein root included by first table is according to by the communication system Total bandwidth determine multiple subbands it is wide and for the multiple subband it is wide, the maximum peak of each of described initial root set piece What value average power ratio was selected from initial root set.

12. method as claimed in claim 11, wherein root included by first table is from the initial root set Peak-peak average power ratio be less than in the root of threshold value and select.

13. method as claimed in claim 11, wherein root included by first table is from the initial root set It is corresponding with the quantity of the candidate root, select in peak-peak mean power the smallest.

14. a kind of method for generating reference signal sequence is executed by the base station in communication system, which comprises

The configuration information that reference signal sequence is sent to user terminal, wherein the configuration information includes the quantity about candidate root Information, so that user terminal is determined according to the quantity of candidate root for the root of user terminal and according to described whole for user The root at end generates reference signal sequence.

15. method as claimed in claim 14, further includes:

The quantity of the candidate root is determined according to the scheduling bandwidth of the user terminal.

16. a kind of for generating the user terminal of reference signal sequence, comprising:

Determination unit is configured to determine that the quantity of candidate root；

Selecting unit is configured as the selection from multiple candidate roots corresponding with the quantity of the candidate root and is used for the user The root of terminal；And

Generation unit is configured as according to selected generation reference signal sequence.

17. a kind of for generating the base station of reference signal sequence, comprising:

Transmission unit is configured as sending the configuration information of reference signal sequence to user terminal, wherein the configuration information packet Include the information of the quantity about candidate root, so as to user terminal according to the quantity of candidate root determine for user terminal root and Reference signal sequence is generated according to the root for user terminal.