CN109842475A

CN109842475A - A kind of control channel pilot frequency creating method, device and equipment

Info

Publication number: CN109842475A
Application number: CN201711227598.8A
Authority: CN
Inventors: 刘文豪; 郝鹏; 毕峰; 贺海港
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-11-29
Filing date: 2017-11-29
Publication date: 2019-06-04
Also published as: WO2019105192A1

Abstract

The application proposes a kind of control channel pilot frequency creating method, device and equipment, it is related to radio resource configuration technical field, include: to send broadcast channel and synchronization signal to terminal in the default frequency domain position of carrier wave, includes the control resource collection of terminal initial access in the broadcast channel；And pass through the control resource collection and broadcast channel of initial access described in the broadcast channel broadcasts or the frequency offset location information of synchronization signal；After the access of one or more terminal, high-rise configuration signal is sent to access terminal, it include other control resource collections outside the control resource collection of the initial access of the access terminal in the high level configuration signal, and frequency offset location information of the control resource relative to carrier wave initial position in other control resource collections of the access terminal is notified by the high-rise configuration signal.

Description

A kind of control channel pilot frequency creating method, device and equipment

Technical field

The present invention relates to radio resource configuration technical fields, and in particular to a kind of control channel pilot frequency creating method, dress It sets and equipment.

Background technique

With being constantly progressive for radio technology, various radio traffics are emerged in multitude, and radio traffic institute The frequency spectrum resource of support is limited, and is continuously increased in face of people to bandwidth demand, and traditional business correspondence master is to be used Frequency spectrum resource shows extremely nervous situation between 300MHz~3GHz, can no longer meet the demand of future wireless system.

In following wireless NR (new radio) communication, system has a flexibility of frequency spectrum, networking flexible and before To compatibility, richer application is supported, such as certain application requirement high-throughputs transmit, some application requirements are highly reliable, some Application requirement low delay, some application requirements are more energy efficient, some application terminal abilities are limited, some applications be it is above-mentioned these Combination.Therefore the design of control channel is also more exquisite to support complicated application.

The flexible running time-frequency resource configuration of the transmission requirement of control channel realizes that highly reliable, low delay, low-power consumption etc. are answered With needing the mode of diversity or wave beam forming again from the wave beam situation of terminal and base station, different transmission modes is to pilot tone Pattern have different requirements again, the mode of diversity can take self-contained or broadband pilot tone, and the mode of wave beam forming can To take self-contained pilot configuration.

Due to the flexible resource distribution of control channel and transmission mode and then caused flexible pilot structural requirement control letter The running time-frequency resource position in road is very flexible, for same terminal or the multiple control channels of different terminals all possible configurations, these controls The running time-frequency resource of channel processed is likely to occur overlapping, the possible difference of the transmission mode of these control channels, thus its pilot configuration It may be different.

The overlapping region of multiple time-frequency domains may be configured for different terminals or same terminal, will appear at this time such as Fig. 1 Shown situation: two CORESET (COntrol REsource SET controls resource collection) running time-frequency resource positions are overlapping, such as Two CORESET of fruit use different transmission plan and pilot configuration, will lead to same pilot resources position in this case The definition of pilot frequency sequence generates conflict.

Summary of the invention

The present invention provides a kind of control channel pilot frequency creating method, device and equipment, solves control channel running time-frequency resource and hands over Folding, which causes control channel to correspond to the inconsistent pilot frequency sequence of pilot tone, leads to the problem of.

In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows:

In a first aspect, the present invention provides a kind of control channel pilot frequency creating method, it is applied to base station, comprising:

Broadcast channel and synchronization signal are sent to terminal in the default frequency domain position of carrier wave, includes eventually in the broadcast channel Hold the control resource collection being initially accessed；And by the control resource collection of initial access described in the broadcast channel broadcasts and extensively Broadcast the frequency offset location information of channel or synchronization signal；

After the access of one or more terminal, high-rise configuration signal, the high level configuration signal are sent to access terminal In include the access terminal initial access control resource collection outside other control resource collections, and pass through the high level Configuration signal notifies frequency domain of the control resource relative to carrier wave initial position in other control resource collections of the access terminal Deviation post information.

Second aspect, the present invention provide a kind of control channel pilot frequency creating method, are applied to base station, comprising:

After the access of one or more terminal, high-rise configuration signal, the high level configuration signal are sent to access terminal In include that the portions of bandwidth BWP of multiple subcarrier spacings configuration intercepts the offset of pilot frequency sequence from entire carrier wave.

The third aspect, the present invention provide a kind of control channel pilot frequency creating method, are applied to terminal, comprising:

According to the control resource collection and broadcast channel of the initial access that received broadcast channel or synchronization signal are configured Or the frequency offset location information of synchronization signal determines pilot frequency sequence；

Control resource rises relative to carrier wave in other control resource collections configured according to received high-rise configuration signal The frequency offset location information of beginning position determines the pilot frequency sequence of the control resource.

Fourth aspect, the present invention provide a kind of control channel pilot tone generating means, are set to base station, comprising:

First broadcast module is set as sending broadcast channel and synchronization signal to terminal in the default frequency domain position of carrier wave, It include the control resource collection of terminal initial access and the control resource collection of the initial access in the broadcast channel and wide Broadcast the frequency offset location information of channel or synchronization signal；

First configuration module is set as after one or more terminal accesses, and is sent to access terminal high-rise with confidence It enables, includes other control resources outside the control resource collection of the initial access of the access terminal in the high level configuration signal Set, and by the high-rise configuration signal notify in other control resource collections of the access terminal control resource relatively with The frequency offset location information of carrier wave initial position.

5th aspect, the present invention provide a kind of control channel pilot tone generating means, are set to base station, comprising:

Second broadcast module is set as sending broadcast channel and synchronization signal to terminal in the default frequency domain position of carrier wave, It include the control resource collection of terminal initial access and the control resource collection of the initial access in the broadcast channel and wide Broadcast the frequency offset location information of channel or synchronization signal；

Second configuration module is set as after one or more terminal accesses, and is sent to access terminal high-rise with confidence It enables, the portions of bandwidth BWP including the configuration of multiple subcarrier spacings intercepts pilot tone from entire carrier wave in the high level configuration signal The offset of sequence.

6th aspect, the present invention provide a kind of control channel pilot tone generating means, are set to terminal, comprising:

AM access module is set as the control resource of the initial access configured according to received broadcast channel or synchronization signal The frequency offset location information of set and broadcast channel or synchronization signal determines pilot frequency sequence；

Resource module is set as controlling money in other control resource collections configured according to received high-rise configuration signal The opposite frequency offset location information with carrier wave initial position in source determines the pilot frequency sequence of the control resource.

7th aspect, the present invention provide a kind of control channel pilot tone generating device, comprising: memory and processor；

The memory is used to save the program for carrying out control channel pilot tone generation；

The processor is used to carry out the program of control channel pilot tone generation when being read execution, executes following operation:

Broadcast channel and synchronization signal are sent to terminal in the default frequency domain position of carrier wave, includes eventually in the broadcast channel The control resource collection and broadcast channel of control resource collection and the initial access that end is initially accessed or the frequency of synchronization signal Domain deviation post information；

After the access of one or more terminal, high-rise configuration signal, the high level configuration signal are sent to access terminal In include the access terminal initial access control resource collection outside other control resource collections, and pass through the high level Configuration signal notifies the opposite frequency domain with carrier wave initial position of control resource in other control resource collections of the access terminal Deviation post information.

Eighth aspect, the present invention provide a kind of storage medium, save the program for carrying out control channel pilot tone generation；

The program that the control channel pilot tone generates executes following operation when being read execution:

Compared to the prior art the present invention, has the following beneficial effects:

Technical solution of the present invention is able to solve the overlapping transporting of control channel running time-frequency resource and control channel is caused to correspond to pilot tone not Consistent pilot frequency sequence generation mechanism, pilot frequency sequence, which may be implemented, in overlapping region in new pilot tone generting machanism is not in Ambiguity.Wherein, if overlapping region be allocated to UE and two control area based on different BWP (portions of bandwidth, Bandwidth part) or be defined based on control area itself, then DMRS can be generated by overlapping region occur The understanding ambiguity of (DeModulation Reference Signal demodulates pilot reference signal), needs to arrange crossover region at this time How the UE behavior in domain, i.e. UE determine the final pilot tone of overlapping region.If overlapping region is allocated to two UE, two UE are not Another UE is solved based on some BWP or based on the pilot frequency sequence that CORESET is defined, leads to pilot frequency sequence conflict, influences control message Transmitting.

Detailed description of the invention

Fig. 1 is the overlapping schematic diagram in the running time-frequency resource position of background technique；

Fig. 2 is the flow chart of the control channel pilot frequency creating method of the embodiment of the present invention；

Fig. 3 is the flow chart of the control channel pilot frequency creating method of the embodiment of the present invention；

Fig. 4 is the structural schematic diagram of the control channel pilot tone generating means of the embodiment of the present invention；

Fig. 5 is the structural schematic diagram of the control channel pilot tone generating means of the embodiment of the present invention；

Fig. 6 is the transmitting flow chart of the base station of embodiment 1；

Fig. 7 is the reception flow chart of the terminal of embodiment 1；

Fig. 8 is the control channel pilot tone schematic diagram of embodiment 2；

Fig. 9 is the control channel pilot tone schematic diagram of embodiment 3；

Figure 10 is the control channel pilot tone schematic diagram of embodiment 3；

Figure 11 is the control channel pilot tone schematic diagram of embodiment 4；

Figure 12 is the control channel pilot tone schematic diagram of embodiment 5；

Figure 13 is the control channel pilot tone schematic diagram of embodiment 5；

Figure 14 is the control channel pilot tone schematic diagram of embodiment 6；

Figure 15 is the control channel pilot tone schematic diagram of embodiment 7；

Figure 16 is the control channel pilot tone schematic diagram of embodiment 9；

Figure 17 is the control channel pilot tone schematic diagram of embodiment 10.

Specific embodiment

To keep goal of the invention of the invention, technical scheme and beneficial effects more clear, with reference to the accompanying drawing to this The embodiment of invention is illustrated, it should be noted that in the absence of conflict, in the embodiment and embodiment in the application Feature can mutual any combination.

As shown in Fig. 2, the embodiment of the present invention provides a kind of control channel pilot frequency creating method, it is applied to base station, comprising:

S101, broadcast channel and synchronization signal are sent to terminal in the default frequency domain position of carrier wave, in the broadcast channel Control resource collection including terminal initial access；And the control resource set for passing through initial access described in the broadcast channel broadcasts Close the frequency offset location information with broadcast channel or synchronization signal；

S102, after the access of one or more terminal, send high-rise configuration signal, the high-rise configuration to access terminal Other control resource collections outside the control resource collection of initial access in signaling including the access terminal, and by described High-rise configuration signal notifies that control resource is relative to carrier wave initial position in other control resource collections of the access terminal Frequency offset location information.

NR is in order to adapt to the flexibility of frequency spectrum, numerology (set of parameter used in communication system, the packet of control channel Include subcarrier spacing, symbol lengths, CP (Cyclic Prefix, cyclic prefix) length etc.) it can flexibly match with different frequency range It sets, such as uses lesser subcarrier spacing to adapt to big time delay expansion in low-frequency range, use biggish sub- load in high band Wave spacing is to resist phase noise.

In order to adapt to the flexibility and forward compatibility characteristic of networking, control channel resource location can match NR, pass through control letter Road can flexibly configure certain resources.This configuration can be completed by high-rise and/or control signaling.

In order to support the application of high-throughput, control channel can configure broader activation bandwidth, be handled up with carrying out height NR The data of amount are transmitted.

NR is in order to support highly reliable application, and control channel is very reliable first, including multi-beam transmission mechanism, bigger poly- Grade is closed, time domain repeats, the technologies such as big bandwidth range spread spectrum.

NR in order to support the transmission of low delay application requirement control channel to adapt to the minimal time delay demand of business datum, this Sample control channel cannot only occur in several OFDM symbols that fixed subframe initial position starts as LTE.A kind of side Formula is that the business of low delay is embedded in general service transmission process, and this mode is referred to as preemption, and this mode is wanted Ask control channel that cannot only come across the initial position of a subframe or time slot, at this time the running time-frequency resource position of control channel, week Phase will be more flexible compared with LTE.

NR is in order to support energy-saving application, it is desirable that data tune can be carried out as far as possible in the form of energy-efficient when control scheduling business datum Degree, a kind of mode is the mode of cross-slot, and this mode terminal is just closed at once in symbol where having received control channel It closes radio frequency link and achievees the purpose that power saving, another way is the band that configurating terminal is monitored in state of activation and unactivated state Width is able to carry out flexible switching, such as works in lesser bandwidth in idle state, and terminal only carries out small bandwidth under this state Control channel monitor, energy-efficient purpose is realized, when work in activation pattern is completed as early as possible under biggish bandwidth with work Data transmission.

NR is in order to support reliably to transmit, it is desirable that control channel can pass through the diversity of multidimensional and provide reliability, such as space It is upper to use multiple preferred wave beams for terminal transmission control message, covering is promoted by repeating on the time, passes through big bandwidth on frequency domain The mode of spread spectrum realizes coverage enhancement.

As seen from the above analysis requirement primary control channel of following wireless communication to control channel has flexibly Property, flexibility here includes:

I) flexibility of resource location, it is relatively-stationary compared to LTE (Long Term Evolution, long term evolution) Control channel, the control channel of NR requires more flexible running time-frequency resource to configure, and can be different user to realize flexible configuration Specific control channel, for example, the business configuration high bandwidth of high reliability, low monitoring monitoring period are applied in configuration.

Ii before the) flexibility of transmission mode, terminal and base station carry out wave beam training, terminal can be by the way of diversity Carry out control channel transmission；Terminal and base station carry out wave beam after training, and base station can transmit control by way of wave beam forming Channel processed.And diversity transmission is divided into the transmission mode of delay diversity and wave beam poll.Wave beam forming can based on preferred wave beam and It is preferred that frequency range carries out the transmission of control channel, therefore is more conducive to improving performance using the resource of centralization at this time, for diversity Transmission mode, because terminal and base station are not aware that optimal preferred wave beam and preferred frequency range, a kind of reliable way is frequency domain The mode of diversity is transmitted.

In the embodiment of the present invention, the pilot frequency sequence of the control resource collection of the initial access and other control resource collections It is generated using identical or different initialisation identifications ID；

When frequency domain resources of the initial control resource collection and other control resource collections do not overlap, then at the beginning of described Begin to control resource collection and pilot tones initialization ID of other control resource collections is identical or different；

When the frequency domain resource generation of the initial control resource collection and other control resource collections is overlapping and described initial Control resource collection is worked at the same time with other control resource collections, then the initial control resource collection and other control resource sets The pilot tone initialization ID of conjunction is identical.

In the embodiment of the present invention, when the initial control resource collection and other control resource collections use identical pilot tone When initializing ID, according to initial control resource collection offset opposite with other control frequency domains of resource collection and common reference Frequency point generates and map pilot sequence.

In the embodiment of the present invention, when the frequency domain resource of the initial control resource collection and other control resource collections occurs When the overlapping and described initial control resource collection and other control resource collections work at the same time, the overlapping frequency domain resource uses institute State the pilot frequency sequence of the control resource collection of initial access.

In the embodiment of the present invention, for the different control resource collections of different terminals or same terminal, joined by high level The pilot frequency sequence generating mode of other control resource collections of number configuration.

In the embodiment of the present invention, the common reference frequency point includes following one: the starting of broadcast channel or synchronization signal The termination frequency domain position of the center frequency domain position of frequency domain position, broadcast channel or synchronization signal, broadcast channel or synchronization signal carries The frequency domain position of wave absolute indices.

It is opposite inclined according to the initial control resource collection and other control frequency domains of resource collection in the embodiment of the present invention It moves and common reference frequency point generates and map pilot sequence includes:

When being mapped with common reference frequency point, the index of pilot sequence index and pilot frequency carrier wave is in a manner of recycling modulus Place sequence.

In the embodiment of the present invention, when the length for generating pilot frequency sequence is greater than carrier bandwidths, the common reference frequency point pair Answer the pilot frequency sequence that position is fixed in pilot frequency sequence.

In the embodiment of the present invention, for the different control channels of different terminals or same terminal, pass through high level configuration ginseng Number generates the pilot frequency sequence that other control resource collections

ID is generated according to configuration pilot frequency sequence, default pilot sequence generates ID or broadband identification field generates other control moneys The pilot frequency sequence of source set.

In the embodiment of the present invention, for different terminals perhaps same terminal different control channels when different terminals or Other control resource collections of different control channels are overlapping and other of different terminals or different control channels control resource sets When conjunction works at the same time, field set is enabled, generates pilot frequency sequence according to default or configuration ID.

In the embodiment of the present invention, the fixed bit that the common reference frequency point corresponds to pilot frequency sequence is set to the centre of pilot frequency sequence The corresponding sequence in position.

The embodiment of the present invention also provides a kind of control channel pilot frequency creating method, is applied to base station, comprising:

Wherein, in the high-rise configuration signal further include: carrier wave interval information.

As shown in figure 3, the embodiment of the present invention also provides a kind of control channel pilot frequency creating method, it is applied to terminal, comprising:

S201, the control resource collection of the initial access configured according to received broadcast channel or synchronization signal and broadcast Channel or the frequency offset location information of synchronization signal determine pilot frequency sequence；

Control resource is opposite with load in S202, other control resource collections configured according to received high-rise configuration signal The frequency offset location information of wave initial position determines the pilot frequency sequence of the control resource.

In the embodiment of the present invention, the terminal receives high-rise configuration signal and knows the received control channel resource of the terminal Set interception pilot sequence offset amount；

Control channel resource collection is determined with respect to carrier wave start offset amount and pilot frequency sequence interception offset based on the received Place controls pilot frequency sequence on resource collection.

In the embodiment of the present invention, when being mapped with common reference frequency point, the index of pilot sequence index and pilot frequency carrier wave Sequence is chosen in a manner of recycling modulus.

In the embodiment of the present invention, pilot frequency sequence, the common reference frequency are generated in the way of being greater than carrier bandwidths length The pilot frequency sequence of position is fixed in the corresponding pilot frequency sequence of point.

As shown in figure 4, the embodiment of the present invention also provides a kind of control channel pilot tone generating means, it is set to base station, comprising:

The pilot frequency sequence of the control resource collection of the initial access and other control resource collections uses identical or different Initialisation identifications ID generate；

When being mapped with common reference frequency point, the index of pilot sequence index and pilot frequency carrier wave is in a manner of recycling modulus It is corresponding.

The fixed bit that the common reference frequency point corresponds to pilot frequency sequence is set to the corresponding sequence in middle position of pilot frequency sequence.

In the high level configuration signal further include: carrier wave interval information.

The embodiment of the present invention also provides a kind of control channel pilot tone generating means, is set to base station, comprising:

As shown in figure 5, the embodiment of the present invention also provides a kind of control channel pilot tone generating means, it is set to terminal, comprising:

The embodiment of the present invention also provides a kind of control channel pilot tone generating device, comprising: memory and processor；Its feature It is:

The embodiment of the present invention also provides a kind of storage medium, it is characterised in that: saves raw for carrying out control channel pilot tone At program；

Embodiment 1

As shown in Figure 1, base station sends SS/PBCH in the specific frequency domain position of a carrier wave, base station notifies to use by PBCH In RMSI CORESET (the Remaining Minimum System Information Control of initial access Resource Set) notice RMSI CORESET be relative to SS/PBCH frequency domain position deviate.

Base station is that terminal configures others CORESET by high-level signaling, the frequency domain of other CORESET is informed in base station simultaneously Frequency offset of the position with respect to SS/PBCH.

If RMSI CORESET is CORESET 1 in Fig. 6, the CORESET of high-level signaling configuration is CORESET 2, Wherein the transmission mode of CORESET 1 is sCDD, and pilot configuration is broadband pilots, and the transmission mode of CORESET 2 is Precoder cycling, pilot configuration are self-contained structure.

Base station determines pilot frequency sequence, such as CORESET 1 according to the frequency domain position offset of CORESET 1 and SS/PBCH Lowest frequency Domain Index correspond to the deviant of RB RB corresponding with the lowest frequency Domain Index of SS and be denoted as offSet1, base station is according to cell ID generates pilot frequency sequence and is denoted as [s0, s1 ..., sN-1], and wherein N is the corresponding pilot tone of maximum bandwidth that corresponding carrier frequency is supported Sequence length, pilot density are denoted as RSD, and maximum bandwidth is denoted as BWmax, then N=BWmax*RSD.Base station is according to offset1 and leads Frequent degree RSD determines that the pilot frequency sequence of CORESET1 is [si ..., sj].The corresponding bandwidth of CORESET1 is denoted as BWcoreset

Wherein i=offset1*RSD, j=offset1*RSD+BWcoreset*RSD-1.

Base station formation sequence in a manner described on CORESET1, and map on corresponding pilot frequency carrier wave.

For CORESET2, base station calculates the offset of offset and pilot tone index in the same way, due to base station Generating pilot tone index according to same offset can guarantee that two CORESET in the pilot frequency sequence of overlapping part are identical values.

For reception process such as Fig. 7 of terminal:

In step1, terminal carries out down-going synchronous and broadcast is read.

In step 2, terminal is according to the running time-frequency resource position of the validation of information CORESET1 of broadcast.

In step 3, when completing down-going synchronous, terminal obtains the frequency domain resource position of downlink synchronous signal, terminal The minimum frequency domain RB index of the minimum frequency domain RB index and down-going synchronous that determine CORESET1 calculates the opposite offset of CORESET1 Measure offset.Terminal determines the pilot frequency sequence of CORESET1 according to relative displacement offset and pilot density RSD.

In step 4, terminal receives the high-level signaling that base station is sent, and knows the running time-frequency resource configuration of CORESET2；

In step5, terminal determines that CORESET2 is corresponding with the frequency domain RB of synchronization signal offset according to CORESET2 and leads Frequency sequence.

Embodiment 2

Pilot frequency sequence is generated using identical reference point in carrier wave

The embodiment is that base station is all CORESET using a public pilot frequency deviation, guarantees the pilot tone of overlapping region Sequence is not in ambiguity.

In step 1, base station provides an initial ginseng for the generation of control channel pilot tone by down-going synchronous for carrier wave Examination point, as shown in figure 8, terminal is according to the corresponding RB of lowest frequency Domain Index of down-going synchronous as the ginseng for generating pilot frequency sequence herein According to position.

Where RB index where reference point is also an option that the center frequency domain of synchronizing channel or synchronization signal highest frequency domain RB the index perhaps corresponding RB index of frequency domain lowest frequency Domain Index where broadcast channel or broadcast channel centre frequency place RB index or broadcast channel highest frequency domain index corresponding RB index.

Base station generates the pilot frequency sequence [s0, s1 ..., sN-1] of entire carrier bandwidths according to the maximum bandwidth of place carrier frequency, Wherein N=BWmax*RSD, BWmax are the corresponding maximum bandwidths of place carrier wave.

In step 2, running time-frequency resource position where base station notifies CORESET1 by broadcast channel, base station according to The frequency domain initial position of CORESET1 determines the pilot tone sequence on CORESET1 with the deviant offset1 of carrier wave frequency domain reference position It arranges [si ..., sj], wherein i and j is a portion of above-mentioned entire carrier bandwidths pilot frequency sequence.I=offset1*RSD, j =offset1*RSD+BWcoreset1*RSD-1, wherein BWcoreset1 is the bandwidth of CORESET1, and RSD is control channel Pilot density takes the every REG of 3RS, REG to occupy 12 RE on frequency domain here, is an OFDM symbol in time domain.

In step 3, base station by high-level signaling be terminal configure CORESET2 running time-frequency resource position, base station according to The lowest frequency Domain Index of CORESET determines that it calculates the pilot frequency sequence of CORESET2 with the offset offset2 of reference frequency domain position. [sm ..., sn], wherein m and n is a portion of above-mentioned entire carrier bandwidths pilot frequency sequence.M=offset2*RSD, j= Offset2*RSD+BWcoreset1*RSD-1, wherein BWcoreset1 is the bandwidth of CORESET1, and RSD is leading for control channel Frequent degree takes the every REG of 3RS, REG to occupy 12 RE on frequency domain here, is an OFDM symbol in time domain.

Terminal side,

In step 1, terminal carries out down-going synchronous, obtains the frequency domain position of down-going synchronous, the frequency domain including down-going synchronous RB index corresponding to the minimum index of carrier wave perhaps RB index corresponding to the frequency domain carriers highest index of down-going synchronous or under The synchronous corresponding RB index of centered carrier of row.

Terminal generates the pilot frequency sequence of corresponding carrier wave maximum bandwidth according to the cell ID obtained during down-going synchronous [s0,...,sN-1]。

Terminal determines the running time-frequency resource position of downlink broadcast according to the corresponding relationship between down-going synchronous and downlink broadcast, under It is identical that row broadcast and the agreement relationship of the running time-frequency resource of down-going synchronous can be frequency domain position centered carrier position, and PBCH use is not With the carrier wave or RB quantity with down-going synchronous.

The time-domain position of broadcast can also position starting and the stop bit of broadcast symbols by the agreement relationship of down-going synchronous It sets.

In step 2, terminal determines the running time-frequency resource position of broadcast by down-going synchronous and the corresponding relationship of broadcast, reads Broadcast message obtains the running time-frequency resource position of CORESET1.

In step 3, terminal is according to the frequency domain initial position of CORESET1 with the deviant of carrier wave frequency domain reference position Offset1 determines the pilot frequency sequence [si ..., sj] on CORESET1, and wherein i and j is above-mentioned entire carrier bandwidths pilot frequency sequence A portion.I=offset1*RSD, j=offset1*RSD+BWcoreset1*RSD-1, wherein BWcoreset1 be The bandwidth of CORESET1, RSD are the pilot densities of control channel, and the every REG of 3RS, REG is taken to occupy 12 RE on frequency domain here, It is an OFDM symbol in time domain.

In step 4, terminal determines the running time-frequency resource of CORESET2 that high-level signaling is configured by receiving high-level signaling Position.

In steps of 5, terminal is according to the frequency domain initial position of CORESET2 with the deviant of carrier wave frequency domain reference position Offset2 determines the pilot frequency sequence [sm ..., sn] on CORESET2, and wherein m and n is above-mentioned entire carrier bandwidths pilot frequency sequence Index.M=offset2*RSD, n=offset2*RSD+BWcoreset2*RSD-1, wherein BWcoreset2 is to pass through height The bandwidth of the CORESET2 of layer signal deployment, RSD is the pilot density of control channel, takes the every REG of 3RS here, REG is on frequency domain 12 RE are occupied, are an OFDM symbol in time domain.

Embodiment 3

In this embodiment, there are multiple BWP on a carrier wave, terminal carries out data transmit-receive not based on the BWP in carrier wave There can be different CORESET configurations with BWP.

Base station has divided multiple BWP on a carrier wave, for UE sometime only one activation BWP, but May exist the BWP of multiple activation for multiple UE, such base station is that there may be multiple activation when different terminals service BWP.

By taking Fig. 9 as an example, base station is assigned with a bandwidth CORESET1 equal with BWP on BWP1, while base station is again Certain terminal distribution band is wider than the BWP2 of BWP1, and also provided a bandwidth CORESET2 equal to it on BWP2

Base station generates the DMRS sequence [s0, s1 ..., sN-1] for being present in the CORESET of BWP1, N=BW_coreset1* RSD, wherein BW_coreset1 is the bandwidth of CORESET1, and the sequence of generation puts order such as Figure 10 institute on CORESET1 Show:

The frequency domain of BWP2 includes BWP1 frequency domain resource in Figure 10, and compared with low-frequency range BWP2, there are also some resources, BWP1 On CORESET bandwidth be BWP1.

For the CORESET1 in BWP1, pilot frequency sequence is generated according to the bandwidth of BWP1, the pilot frequency sequence of generation according to Sequence from low to high is placed into s0, s1 ..., sN-1 in corresponding frequency domain resource.

Further, base station is terminal configuration control resource collection CORESET2, corresponding frequency domain bandwidth by high-level signaling It is identical as BWP2, at this time base station according to CORESET2 bandwidth generate pilot frequency sequence [s0, s1 ... sN-1, sN ... sN ' -1] Wherein N '=BW_coreset2*RSD, terminal put pilot tone from the initial position of CORESET1 in map pilot sequence, mapping The result is that the pilot frequency sequence in the region CORESET being overlapped on BWP1 and BWP2 is identical.For the low frequency of the BWP2 beyond BWP1 Region, base station by sN ... -1 sequence of sN ' is mapped on pilot frequency carrier wave.Corresponding formula is RE (mod (k+offset, BW_ Coreset2))=RS (k), wherein the value of k is the index number of CORESET2 pilot frequency locations, and mod is modulo operation.Finally Mapping result with regard to as shown in Figure 10.

Embodiment 4

In this embodiment, base station is configured to CORESET, referred to as the RMSI CORESET being initially accessed first, Base station cannot configure the bandwidth of carrier wave before not completing interaction with terminal for terminal, and CORESET or BWP are absolute with respect to carrier wave The parameter of initial position and the initialization of user's pilot frequency sequence.

According to the pilot frequency sequence of cell ID initialization RMSI CORESET, sequence length is RMSI CORESET for base station at this time Corresponding sequence length.Base station can configure another CORESET by terminal after interaction is completed in terminal and base station, be denoted as CORESET2.Base station configure CORESET2 as properties:

1) for carrying out the ID of sequence generation, it is denoted as ID_coreset；

2) the running time-frequency resource position of CORESET；

3) offset of the frequency domain initial position of CORESET relative to the starting index of carrier bandwidths；

4) the running time-frequency resource position of RMSI CORESET.

After terminal completes access, base station can inform RMSI CORESET and other CORESET phases by high-level signaling For PRB0 offset.

Base station generates the pilot frequency sequence that CORESET2 corresponds to bandwidth based on ID_coreset2, when the pilot tone sequence of CORESET2 Column conflict with the pilot frequency sequence of RMSI CORESET, and pilot tone retains the pilot tone of RMSI CORESET, mask CORESET2 Pilot frequency sequence.

Such as in Figure 11, base station generates the pilot frequency sequence of corresponding RMSI CORESET according to cell ID first.In network Terminal complete be initially accessed after, base station can configure additional CORESET for it, if these CORESET are with RMSI's CORESET generates frequency domain and overlaps, then retains the pilot frequency sequence of RMSI CORESET, mask other CORESET in crossover position Pilot tone.

Terminal side,

In step 1, terminal carries out down-going synchronous first, obtains Time and Frequency Synchronization and cell ID, terminal pass through down-going synchronous Position determine the position of broadcast channel, read the running time-frequency resource position of RMSI CORESET, the bandwidth note of RMSI CORESET For bw_RMSI；

In step 2, terminal according to cell ID generate corresponding RMSI CORESET bandwidth pilot frequency sequence [s0, s1, ... sN-1], wherein N=bw_RMSI*RSD.RSD is the pilot density of PDCCH, and taking pilot density here is each REG of 3RS, Terminal read system message, which obtains, is initially accessed necessary configuration information；

In step 3, accessing terminal to network, receive base station configuration high-level signaling determine high-rise configuration CORESET when Frequency resource location, this CORESET are denoted as CORESET2, and bandwidth is denoted as bw_coreset2；

It also includes CORESET2 relative to the absolute frequency domain index initial position PRB0 of entire carrier wave that terminal, which receives high-level signaling, Offset offset_coreset2_prb0, terminal also passes through high-level signaling and knows RMSI CORESET relative to the offset of PRB0 Measure offset_RMSIcoreset_prb0.

In step 4, terminal is according to offset_coreset2_prb0, offset_coreset2_prb0, bw_RMSI and Bw_coreset2 determines CORESET2 with the crossover position of RMSI CORESET.

In steps of 5, terminal first determines whether the control of high-level signaling configuration when receiving the control channel of high-level signaling configuration It is overlapping whether the control channel of channel and RMSI processed has in frequency domain, if there is overlapping, then in overlapping region according to RMSI CORSET Corresponding pilot tone carries out channel estimation.

Embodiment 5

If CORESET and BWP occur simultaneously, it will be assumed that the bandwidth of CORESET with place BWP bandwidth be it is identical, The two bandwidth can also be different, as shown in figure 12:

Base station defines the configuration of BWP first, and there are two BWP in Figure 12, wherein the BWP and another BWP of carrying RMSI There are the region that frequency domain overlaps, two BWP are denoted as BWP1 and BWP2 respectively.In this embodiment the CORESET of two BWP not with The absolute indices opening relationships of the frequency domain initial position of carrier bandwidths.

In this embodiment, base station is configured to CORESET, referred to as the RMSI CORESET being initially accessed first, Bandwidth range where CORESET is referred to as initial BWP, and base station is terminal by high-level signaling after same terminal completes interaction It configures another band to be wider than initial BWP and there is overlapping BWP with initial BWP, this BWP is denoted as BWP2.Pass through high-level signaling Base station configures the offset of BWP2 and PRB0, specific frequency domain position of the further base station configuration CORESET2 in BWP2.

Base station initializes the pilot frequency sequence of RMSI CORESET according to cell ID, and sequence length is corresponding for RMSI CORESET Sequence length.Base station can configure another BWP by terminal after interaction is completed in terminal and base station, be denoted as BWP2.Base station Configure BWP2 as properties:

1) the running time-frequency resource position of BWP；

2) offset of the frequency domain initial position of BWP relative to the starting index PRB0 of carrier bandwidths；

3) frequency domain position of the CORESET in BWP relative to BWP.

After terminal completes access, base station can be configured corresponding in additional BWP and other BWP by high-level signaling CORESET.Base station can also inform frequency offset amount offset_RSMI_PRB0 of the RMSI CORESET with respect to PRB0.

Base station is based on ID_bwp2 and generates for the corresponding pilot frequency sequence of BWP2 [s0, s1 ... sN-1], wherein N=bw_ Bwp2*RSD, wherein bw_bwp2 is the bandwidth of BWP2, and RSD is pilot density.Base station is that the CORESET of BWP2 configuration is denoted as CORESET2, corresponding bandwidth are denoted as bw_coreset2.Starting frequency domain resource RB index of its frequency domain position relative to BWP2 Offset is denoted as offset_bwp2, and offset_bwp2 and bw_coreset2 are allocated to terminal by high-level signaling by base station.

Base station calculates the frequency domain carriers position of the CORESET2 of BWP2, if the RMSI CORESET of frequency domain position and BWP1 There are pilot frequency sequence conflicts, then base station retains the RMSI CORESET pilot frequency sequence of BWP1 in conflict area, in non-overlapping region Map the corresponding pilot frequency sequence of CORESET2.

Such as in Figure 12, base station generates the pilot frequency sequence of corresponding RMSI CORESET according to cell ID first.It is complete in terminal After initial access, base station is that it configures BWP2 and corresponding CORESET2, and base station is according to the offset and BWP2 of BWP CORESET2 pilot frequency sequence corresponding with the frequency offset of the BWP2 non-overlapping region of calculating, when non-overlapping region is low frequency part When, the pilot tone index in non-overlapping region is [s0, s1 ... sK], wherein K=(offset+offset_bwp2) * RSD；When non-friendship When folded region is high frequency section, the pilot tone in non-overlapping region is [sk, sk+1 ... sN], when k=(offset1+bw_ Overlap) * RSD, N=(offset1+bw_overlap) * RSD, wherein offset1 is CORESET2 relative to CORESET2 The offset of initial position, bw_overlap are bandwidth shared by overlapping region.As shown in figure 13.

The frequency domain resource of BWP2 includes the frequency domain resource of BWP1 in the present embodiment, other situations include BWP2 and BWP1 band Width is identical, and the CORESET in two BWP is also identical or BWP2 is greater than BWP1 but the two partly overlaps, and BWP1 is occupied more High (low) carrier area, BWP2 occupy more low (height) carrier areas.The generation of the pilot frequency sequence of these overlapping situations is no longer It repeats.Its thought is all to calculate actual crossover position according to offset, retains the pilot tone of CORESET a kind of in crossover position. Calculating process is almost the same with foregoing teachings.

Terminal side,

In step 1, terminal carries out down-going synchronous first, obtains Time and Frequency Synchronization and cell ID, terminal pass through down-going synchronous Position determine the position of broadcast channel, read the running time-frequency resource position of RMSI CORESET, the bandwidth note of RMSI CORESET It is also the bandwidth of initial BWP for bw_RMSI this bandwidth；

In step 3, accessing terminal to network, the high-level signaling for receiving base station configuration determine the time-frequency money of high-rise configuration BWP2 The opposite drift condition of the CORESET2 and BWP2 that configure in source position and BWP2, the offset of BWP2 and initial BWP are denoted as Offset, this offset can be that positive value is also negative value, in this example,；

It also includes BWP2 relative to the inclined of the absolute frequency domain index initial position PRB0 of entire carrier wave that terminal, which receives high-level signaling, Shifting amount offset_coreset2_prb0, terminal also pass through high-level signaling and know offset of the RMSI CORESET with respect to PRB0 offset_RMSIcoreset_prb0。

In step 4, terminal is according to offset_coreset2_prb0, offset_coreset2_prb0, bw_RMSI and Bw_coreset2 determines crossover position and overlapping bandwidth of the CORESET2 with RMSI CORESET.

Embodiment 6

In 1~embodiment of above-described embodiment 4, always a RMSI CORESET and the CORESET of a high-rise configuration are produced Raw overlapping, the present embodiment generates overlapping for the CORESET of two high-rise configurations, it will be assumed that the bandwidth of CORESET and place BWP Bandwidth is different.

Base station defines the configuration of two BWP first, and the CORESET of two BWP is configured by high-level signaling, deposits in Figure 14 It is denoted as BWP1 and BWP2 respectively in two BWP, two BWP.Two BWP have opposite offset with PRB0 in this embodiment.

In this embodiment, since two BWP and corresponding CORESET are high-rise configurations, height can be passed through Layer signaling configures the initialization that identical ID carries out sequence for it.

Two terminals of such case know the opposite offset with PRB0 of CORESET always, as long as therefore being two terminals It configures identical initialization ID i.e. and can guarantee that the corresponding pilot frequency sequence of two BWP generates identical sequence with PRB0 for starting, Therefore overlapping region will not generate ambiguity.

This mode is suitble to the CORESET configured with high-level signaling not conflict with the generation of RMSI CORESET resource, at this time Base station generates pilot frequency sequence according to carrier bandwidths and maps, no matter whether the CORESET of two terminals generates conflict, pilot tone itself Always will not conflict.

Terminal side,

In step 1, the reception of terminal 1 high-level signaling knows CORESET corresponding to terminal corresponding BWP and BWP, remembers For BWP1 and CORESET1, terminal 2 receives high-level signaling and knows CORESET corresponding to terminal corresponding BWP and BWP, remembers For BWP2 and CORESET2；

Terminal 1 and terminal 2, which are received, is denoted as ID_dmrs, and terminal 1 and terminal for generating the configuration ID of CORESET DMRS The ID_dmrs of 2 configurations is identical.

In step 2, terminal 1 and terminal 2 know that BWP1 and BWP2 is directed to the offset offset_ of carrier bandwidths PRB0 Bwp1 and offset_bwp2, terminal further know that the offset of the relatively described BWP of CORESET1 and CORESET2 is denoted as Offset_coreset1 and offset_coreset2；

In step 3, terminal 1 and terminal 2 are deviated according to the BWP of respective BWP offset and CORESET belonging to Amount calculates final offset of the CORESET with respect to PRB0, calculates the DMRS sequence of the position CORESET；

Since terminal is according to opposite PRB0 and identical initialization ID formation sequence, terminal is used in overlapping region Identical pilot frequency sequence, such case will not generate pilot collision.

Embodiment 7

Base station defines the configuration of two BWP first, and the CORESET of two BWP is configured by high-level signaling, deposits in Figure 15 It is denoted as BWP1 and BWP2 respectively in two BWP, two BWP.Two BWP have opposite offset with PRB0 in this embodiment.

In this embodiment, since two BWP and corresponding CORESET are high-rise configurations, height can be passed through Layer signaling configures the initialization that identical ID carries out sequence for it.Furthermore base station configuration CORESET as properties:

1) it is used for the ID of initialization sequence；

2) for identify whether be broadband DMRS field；

Two terminals know the opposite offset with PRB0 of CORESET always, as long as therefore identical for two terminal configurations Initialization ID can guarantee the corresponding pilot frequency sequence of two BWP and be with PRB0 that starting generates identical sequence, therefore it is overlapping Region will not generate ambiguity.

Meanwhile in order to realize that the flexibility of scheduling is the field that CORESET increases a broadband properties, if this field is set Position, then according to the ID initialization sequence of default, and according to the offset of PRB0 in CORESET resource map pilot.If this The non-set of field is then initialized according to the ID configured and carries out the generation of the pilot frequency sequence within the scope of CORESET and sequence Mapping.

This mode provides flexibility for scheduling, and base station understands the CORESET that different UE are configured, if different The overlapping then base station CORESET can generate pilot frequency sequence according to CORESET, the process of initialization according to the ID configured into Row initialization, if difference CORESET have it is overlapping, base station by broadband mark be set to, according to default ID generation pilot frequency sequence simultaneously According to the relative position map pilot with PRB0.

Terminal side,

In step 1, the reception of terminal 1 high-level signaling knows CORESET corresponding to terminal corresponding BWP and BWP, remembers For BWP1 and CORESET1；

Terminal 1, which is received, is denoted as ID_dmrs for generating the configuration ID of CORESET DMRS,.

Terminal 1 receives the broadband properties configuration of CORESET.

In step 2, terminal 1 knows that BWP1 is directed to the offset offset_bwp1 of carrier bandwidths PRB0, and terminal is further Know that the offset of the relatively described BWP of CORESET1 is denoted as offset_coreset1；

In step 3, terminal 1 reads CORESET broadband properties field, if broadband properties field set, according to respectively BWP offset and CORESET relatively belonging to BWP offset, calculate final offset of the CORESET with respect to PRB0, calculating The DMRS pilot frequency sequence of the position CORESET；

If terminal 1 reads CORESET broadband properties field, if the non-set of broadband properties field, according to CORESET bandwidth The initial ID of sequence with being configured, calculates the DMRS sequence of specific CORESET.

Embodiment 8

In step 1, base station generates 2 times that length is pilot sequence length needed for entire carrier bandwidths, with synchronization signal Minimum frequency domain RB index as initial position, be incremented by relative to the high-frequency position pilot frequency sequence value in initial position, relative to The low-frequency position pilot frequency sequence value in initial position is successively decreased.

The pilot sequence length that whole bandwidth needs is N, but according to 2 times of generation pilot frequency sequences of length and with down-going synchronous The minimum RB index of frequency domain it is corresponding with pilot frequency sequence midpoint, i.e., the pilot frequency sequence of minimum RB index corresponding to down-going synchronous is SN, sN+1, sN+2, it is assumed here that a REG, which has, carries pilot tone on 3 RE, and frequency domain position is lower than the adjacent R EG of down-going synchronous Pilot frequency sequence be sN-3, sN-2, sN-1.

REG where above-mentioned reference point can also carry out small-scale offset, such as minimum RB corresponding to down-going synchronous The pilot frequency sequence of index be sN-1, sN, sN+1,

Base station according to place carrier frequency maximum bandwidth generate 2 times of entire carrier bandwidths pilot frequency sequence [s0, s1 ..., SN-1, sN, sN+1 ..., s2N-1], wherein N=BWmax*RSD, BWmax are the corresponding maximum bandwidths of place carrier wave.

In step 2, running time-frequency resource position where base station notifies CORESET1 by broadcast channel, base station according to The frequency domain initial position of CORESET1 determines the pilot tone sequence on CORESET1 with the deviant offset1 of carrier wave frequency domain reference position It arranges [si ..., sj], wherein i and j is a portion of above-mentioned entire carrier bandwidths pilot frequency sequence.I=N+ (offset1) * RSD, j=N+ (offset1+BWcoreset1) * RSD-1, wherein BWcoreset1 is the bandwidth of CORESET1, and RSD is control The pilot density of channel takes the every REG of 3RS, REG to occupy 12 RE on frequency domain here, is an OFDM symbol in time domain.

In step 3, base station by high-level signaling be terminal configure CORESET2 running time-frequency resource position, base station according to The lowest frequency Domain Index of CORESET determines that it calculates the pilot frequency sequence of CORESET2 with the offset offset2 of reference frequency domain position. [sm ..., sn], wherein m and n is a portion of above-mentioned entire carrier bandwidths pilot frequency sequence.M=N+offset2*RSD, j =N+offset2*RSD+BWcoreset1*RSD-1, wherein BWcoreset1 is the bandwidth of CORESET1, and RSD is control channel Pilot density, take the every REG of 3RS, REG to occupy 12 RE on frequency domain here, be an OFDM symbol in time domain.

Terminal side,

Terminal generates the 2 of corresponding carrier wave maximum bandwidth corresponding sequence length according to the cell ID obtained during down-going synchronous Times generate pilot frequency sequence [s0 ..., sN-1, sN ... s2N-1].

In step 3, terminal is according to the frequency domain initial position of CORESET1 with the deviant of carrier wave frequency domain reference position Offset1 determines the pilot frequency sequence [si ..., sj] on CORESET1, and wherein i and j is above-mentioned entire carrier bandwidths pilot frequency sequence A portion.I=N+offset1*RSD, j=N+offset1*RSD+BWcoreset1*RSD-1, wherein BWcoreset1 is the bandwidth of CORESET1, and RSD is the pilot density of control channel, takes the every REG of 3RS here, REG is on frequency domain 12 RE are occupied, are an OFDM symbol in time domain.

The corresponding pilot frequency locations of reference point can also have the offset of fractional value, if the corresponding pilot tone of reference point is sN+1, The index value of above-mentioned pilot tone is i=N+offset1*RSD+1, j=N+offset1*RSD+BWcoreset1*RSD, other offsets Amount does corresponding similar operations.

In steps of 5, terminal is according to the frequency domain initial position of CORESET2 with the deviant of carrier wave frequency domain reference position Offset2 determines the pilot frequency sequence [sm ..., sn] on CORESET2, and wherein m and n is above-mentioned entire carrier bandwidths pilot frequency sequence Index.M=N+offset2*RSD, n=N+offset2*RSD+BWcoreset2*RSD-1, wherein BWcoreset2 is logical The bandwidth of the CORESET2 of high-rise signal deployment is crossed, RSD is the pilot density of control channel, takes the every REG of 3RS here, REG is in frequency 12 RE are occupied on domain, are an OFDM symbol in time domain.

Embodiment 9

Same carrier bandwidths are discussed, and there are the generation methods of the PDCCH DMRS pilot frequency sequence of a variety of numerology.One Carrier bandwidths are divided into multiple BWP, and different BWP may configure different numerology, if different For the corresponding BWP of numerology in frequency domain there is no overlapping, the interference between numerology can smaller, can and meanwhile work Make；The interference between numerology is not present if two overlapping BWP are using identical numerology, it can work simultaneously Make.Divide situation discussion below.

In step 1, base station defines two BWP in a carrier bandwidths, and the corresponding bandwidth of two BWP is different, but deposits In overlapping bandwidth.For the corresponding resource of two BWP as shown in figure 16 respectively such as two dotted line frames in left and right, left dotted line frame is corresponding Frequency domain resource is denoted as BWP1, and the corresponding frequency domain resource of right dotted line frame is denoted as BWP2.

Base station is that the offset of UE1 configuration BWP1, BWP1 and PRB0 are denoted as offset1, and base station is that UE2 configures BWP2, The offset of BWP2 and PRB0 is offset2.Base station notifies each BWP for calculating the initial position of pilot tone simultaneously.

As shown in figure 16, if base station is only configured with BWP relative to the offset of PRB0 and according to offset according to two terminals Measuring the corresponding pilot frequency sequence with reference to numerology, to will lead to the pilot tone placed on two overlapping pilot frequency carrier waves inconsistent, such as The starting pilot sequence index of right block diagram is 9 in Figure 16 and pilot sequence index that left side block diagram corresponds to carrier position is 8, the two It will lead to conflict.

When therefore also reinforming generation pilot tone in BWP relative to the offset of PRB0 in addition to notice BWP, this opposite BWP Offset be using numerology corresponding to BWP as granularity.

For BWP2, base station is with reference to numerology for the corresponding initial position BWP offset offset2 of its notice Number be 9 position, notification sequence index offset amount offset_seq2=-1.

For BWP1, base station is with reference to numerology for the corresponding initial position BWP offset offset1 of its notice Number be 7 position, notification sequence index offset amount offset_seq1=0.

In step 2, base station generates the pilot frequency sequence [s0 ..., sN-1] of carrier bandwidths according to reference numerology；

In step 3, base station is according to the sequence for generating pilot frequency sequence for respective the BWP offset of PRB0 and each BWP relatively Column index offset determines the pilot frequency sequence actually mapped.

Such as the calculation method of its pilot tone index initial value is seq_start=offset1+ for the BWP1 of UE1 Offset_seq1=7+0；

Final position is related to the bandwidth of BWP, it is assumed that the bandwidth of BWP1 is BW_BWP1, then pilot tone indexes stop value are as follows:

Seq_end=seq_start+BW_BWP1*RSD-1, wherein BW_BWP1 is the bandwidth that BWP is configured for UE1, frequency Domain granularity is RB quantity, and RSD is pilot density.

The same UE1 of pilot sequence index calculation method for the BWP that base station configures another terminal, repeats no more.

BWP distribution condition and corresponding pilot tone span are only to describe the problem herein, the bandwidth and numerology of other BWP Configuration also use the method；

In addition, the number of pilot tone index is numbered from 1 in this embodiment, other number forms are also in the present embodiment In protection scope.The offset of notice can be as unit of the corresponding subcarrier width of reference numerology or The corresponding numerology of this BWP is reference, these differences can be realized by this method by the method for equivalents, therefore Within the application institute protection scope.

It is identical with two numerology in this embodiment, but the different situation of band width configuration is described.It is another Kind mode is that two overlapping numerology are different, and such case base station notifies two of each terminal in the manner described above Offset.Terminal can two offsets be confirmed as the pilot frequency sequence starting index and basis of terminal configuration BWP CORESET bandwidth determines final pilot frequency sequence.

Terminal side,

In step 1, the high-level signaling that terminal receives base station determines the offset offset of configured BWP and PRB0.Eventually End receives the opposite offset index offset_seq that this BWP generates pilot frequency sequence.

In step 2, terminal generates the pilot frequency sequence of whole bandwidth according to carrier bandwidths and with reference to numerology [s0,...,sN-1]。

In step 3, carrier index and pilot frequency deviation index of the terminal according to BWP with respect to PRB0 confirm the DMRS of this BWP The starting final position of pilot frequency sequence.

Furthermore for terminal when obtaining the CORESET of base station configuration, terminal can also obtain CORESET in the frequency domain position of this BWP It sets, terminal can further extract the pilot frequency sequence for the position CORESET occur, example in the index where this BWP in frequency domain resource Be denoted as terminal calculates the pilot frequency sequence on the BWP of place [s ' 0, s ' 1 ..., s ' N-1], initial position of the CORESET with respect to BWP Offset is denoted as offset_coreset, then terminal according to this offset can further calculate out CORESET on corresponding to DMRS sequence index, i.e. the pilot tone homing sequence seq_coreset_start=offset_coreset*RSD of CORESET.

Embodiment 10

As shown in figure 17, base station is configured in the way of embodiment 9, but does not have to configure some BWP pilot frequency sequence Offset index amount, base station determine intercepted sequence context according to numerology and with reference to the multiple proportion of numerology.

Terminal side determines intercepted sequence according to numerology and with reference to the multiple proportion of numerology.

Although disclosed embodiment is as above, its content is only to facilitate understand technical side of the invention Case and the embodiment used, are not intended to limit the present invention.Any those skilled in the art to which this invention pertains, not Under the premise of being detached from disclosed core technology scheme, any modification and change can be made in form and details in implementation Change, but protection scope defined by the present invention, the range that the appended claims that must still be subject to limits.

Claims

1. a kind of control channel pilot frequency creating method, which is characterized in that be applied to base station, comprising:

Broadcast channel and synchronization signal are sent to terminal in the default frequency domain position of carrier wave, at the beginning of including terminal in the broadcast channel Begin the control resource collection accessed；And believed by the control resource collection of initial access described in the broadcast channel broadcasts and broadcast The frequency offset location information in road or synchronization signal；

After the access of one or more terminal, high-rise configuration signal is sent to access terminal, is wrapped in the high level configuration signal Other control resource collections outside the control resource collection of the initial access of the access terminal are included, and pass through the high-rise configuration Signal frequency offset of the control resource relative to carrier wave initial position in other control resource collections of the access terminal Location information.

2. the method as described in claim 1, it is characterised in that:

Pilot frequency sequences of the control resource collection of the initial access and other control resource collections using it is identical or different just Beginningization identifies ID and generates；

When it is described it is initial control resource collection and other control resource collections frequency domain resources do not overlap, then the initial control The pilot tone initialization ID of resource collection processed and other control resource collections is identical or different；

When the overlapping and described initial control occurs for the frequency domain resource of the initial control resource collection and other control resource collections Resource collection is worked at the same time with other control resource collections, then the initial control resource collection and other control resource collections It is identical that pilot tone initializes ID.

3. method according to claim 2, it is characterised in that: when the initial control resource collection and other control resource sets When closing using identical pilot tone initialization ID, according to the frequency domain phase of the initial control resource collection and other control resource collections To offset and common reference frequency point generates and map pilot sequence.

4. method according to claim 2, it is characterised in that: when the initial control resource collection and other control resource sets When the frequency domain resource of conjunction occurs to overlap and the initial control resource collection and other control resource collections work at the same time, the friendship Folded frequency domain resource uses the pilot frequency sequence of the control resource collection of the initial access.

5. method as claimed in claim 4, it is characterised in that: for the different control resources of different terminals or same terminal Set configures the pilot frequency sequence generating mode of other control resource collections by higher level parameters.

6. method as claimed in claim 5, it is characterised in that: the common reference frequency point includes following one: broadcast channel Or the starting frequency domain position of synchronization signal, the center frequency domain position of broadcast channel or synchronization signal, broadcast channel or synchronization signal Termination frequency domain position, the frequency domain position of carrier wave absolute indices.

7. method as claimed in claim 6, it is characterised in that: according to the initial control resource collection and other control resources The opposite offset of the frequency domain of set and common reference frequency point generate and include: with map pilot sequence

When being mapped with common reference frequency point, the index of pilot sequence index and pilot frequency carrier wave is placed in a manner of recycling modulus Sequence.

8. method as claimed in claim 5, it is characterised in that: when the length for generating pilot frequency sequence is greater than carrier bandwidths, institute It states common reference frequency point and corresponds to the pilot frequency sequence for fixing position in pilot frequency sequence.

9. method as claimed in claim 5, it is characterised in that: for the different control letters of different terminals or same terminal Road includes: by the pilot frequency sequence that high-rise configuration parameter generates other control resource collections

ID is generated according to configuration pilot frequency sequence, default pilot sequence generates ID or broadband identification field generates other control resource sets The pilot frequency sequence of conjunction.

10. method as claimed in claim 5, it is characterised in that: for the different control letters of different terminals or same terminal Road, when other of different terminals or different control channel control resource collections are overlapping and different terminals or different control channels Other control resource collections when working at the same time, enable field set, generate pilot frequency sequence according to default or configuration ID.

11. method according to claim 8, it is characterised in that: the common reference frequency point corresponds to the fixed bit of pilot frequency sequence It is set to the corresponding sequence in middle position of pilot frequency sequence.

12. a kind of control channel pilot frequency creating method, which is characterized in that be applied to base station, comprising:

After the access of one or more terminal, high-rise configuration signal is sent to access terminal, is wrapped in the high level configuration signal The portions of bandwidth BWP for including multiple subcarrier spacing configurations intercepts the offset of pilot frequency sequence from entire carrier wave.

13. method as claimed in claim 12, it is characterised in that: in the high level configuration signal further include: the letter of carrier wave interval Breath.

14. a kind of control channel pilot frequency creating method, which is characterized in that be applied to terminal, comprising:

The control resource collection of the initial access configured according to received broadcast channel or synchronization signal is with broadcast channel or together The frequency offset location information of step signal determines pilot frequency sequence；

Control resource is relative to carrier wave start bit in other control resource collections configured according to received high-rise configuration signal The frequency offset location information set determines the pilot frequency sequence of the control resource.

15. method as claimed in claim 14, it is characterised in that:

It receives high-rise configuration signal and knows the received control channel resource collection interception pilot sequence offset amount of the terminal；

Where control channel resource collection is determined with respect to carrier wave start offset amount and pilot frequency sequence interception offset based on the received Control pilot frequency sequence on resource collection.

16. method as claimed in claim 14, it is characterised in that: when the initial control resource collection and other control resources When set is using identical pilot tone initialization ID, according to the frequency domain of the initial control resource collection and other control resource collections Opposite offset and common reference frequency point generate and map pilot sequence.

17. method as claimed in claim 14, it is characterised in that: when the initial control resource collection and other control resources It is described when the frequency domain resource of set occurs to overlap and the initial control resource collection and other control resource collections work at the same time Overlapping frequency domain resource uses the pilot frequency sequence of the control resource collection of the initial access.

18. the method described in claim 16, it is characterised in that: the common reference frequency point includes following one: broadcast letter The center frequency domain position of the starting frequency domain position in road or synchronization signal, broadcast channel or synchronization signal, broadcast channel or synchronous letter Number termination frequency domain position, the frequency domain position of carrier wave absolute indices.

19. method as claimed in claim 14, it is characterised in that: when being mapped with common reference frequency point, pilot frequency sequence rope Draw and chooses sequence in a manner of recycling modulus with the index of pilot frequency carrier wave.

20. method as claimed in claim 14, it is characterised in that: generate pilot tone sequence in the way of being greater than carrier bandwidths length Column, the common reference frequency point correspond to the pilot frequency sequence that position is fixed in pilot frequency sequence.

21. a kind of control channel pilot tone generating means, which is characterized in that be set to base station, comprising:

First broadcast module is set as sending broadcast channel and synchronization signal to terminal in the default frequency domain position of carrier wave, described It include that the control resource collection of terminal initial access and the control resource collection of the initial access and broadcast are believed in broadcast channel The frequency offset location information in road or synchronization signal；

First configuration module is set as after one or more terminal accesses, and sends high-rise configuration signal, institute to access terminal Other control resource collections outside the control resource collection of the initial access in high-rise configuration signal including the access terminal are stated, And notify in other control resource collections of the access terminal control resource opposite and carrier wave by the high-rise configuration signal The frequency offset location information of initial position.

22. a kind of control channel pilot tone generating means, which is characterized in that be set to base station, comprising:

Second broadcast module is set as sending broadcast channel and synchronization signal to terminal in the default frequency domain position of carrier wave, described It include that the control resource collection of terminal initial access and the control resource collection of the initial access and broadcast are believed in broadcast channel The frequency offset location information in road or synchronization signal；

Second configuration module is set as after one or more terminal accesses, and sends high-rise configuration signal, institute to access terminal It states the portions of bandwidth BWP including the configuration of multiple subcarrier spacings in high-rise configuration signal and intercepts pilot frequency sequence from entire carrier wave Offset.

23. a kind of control channel pilot tone generating means, which is characterized in that be set to terminal, comprising:

AM access module is set as the control resource collection of the initial access configured according to received broadcast channel or synchronization signal Pilot frequency sequence is determined with the frequency offset location information of broadcast channel or synchronization signal；

Resource module is set as controlling resource phase in other control resource collections configured according to received high-rise configuration signal To the frequency offset location information with carrier wave initial position, the pilot frequency sequence of the control resource is determined.

24. a kind of control channel pilot tone generating device, comprising: memory and processor；It is characterized by:

Broadcast channel and synchronization signal are sent to terminal in the default frequency domain position of carrier wave, at the beginning of including terminal in the broadcast channel The control resource collection of beginning access and the control resource collection and the frequency domain of broadcast channel or synchronization signal of the initial access are inclined Pan position information；

After the access of one or more terminal, high-rise configuration signal is sent to access terminal, is wrapped in the high level configuration signal Other control resource collections outside the control resource collection of the initial access of the access terminal are included, and pass through the high-rise configuration Signal the opposite frequency offset with carrier wave initial position of control resource in other control resource collections of the access terminal Location information.

25. a kind of storage medium, it is characterised in that: save the program for carrying out control channel pilot tone generation；