CN109392080A

CN109392080A - The method and apparatus of synchronous signal transmission

Info

Publication number: CN109392080A
Application number: CN201710687871.9A
Authority: CN
Inventors: 袁璞; 刘瑾; 向铮铮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-11
Filing date: 2017-08-11
Publication date: 2019-02-26
Also published as: WO2019029548A1

Abstract

The invention discloses a kind of method of synchronous signal transmission, a kind of network equipment and a kind of terminal devices.For providing a kind of scheme of the instruction information of the network equipment to terminal device transmission to indicate sequence of the SS block in affiliated SS burst set.This method comprises: the network equipment generates synchronization signal block and the instruction information to indicate sequence that the synchronization signal block is concentrated in affiliated synchronous signal impulse, including Physical Broadcast Channel PBCH symbol in synchronization signal block；Two M sequences are generated according to linear feedback shift register LFSR, the initial value of LFSR is determined according to the partial information in the instruction information；It is added after carrying out cyclic shift to described two M sequences, generates a Gold sequence；A subsequence is intercepted from Gold sequence as demodulated reference signal sequence；Remaining information in the instruction information in addition to the partial information is sent by the first resource；The demodulated reference signal sequence is sent by the Secondary resource.

Description

The method and apparatus of synchronous signal transmission

Technical field

This application involves field of communication technology more particularly to a kind of method of synchronous signal transmission, a kind of network equipment and A kind of terminal device.

Background technique

In long term evolution (Long Term Evolution, LTE) network, user equipment (User Equipment, UE) It accesses before cell, first has to carry out cell searching, with the synchronous of the downstream communications link between acquisition and cell, and correctly obtain System information needed for taking access network.

In order to support cell searching, 2 downlink synchronous signals, respectively primary synchronization signal (Primary are defined Synchronization Signal, PSS) and secondary synchronization signal (Secondary Synchronization Signal, SSS).After UE completes cell search process, UE obtains down-going synchronous with cell, and what UE needed to get cell at this time is System information just can know that how cell configures, to access the cell and correctly to work in the cell.System information In include Master Information Block (MasterInformationBlock, MIB) and system information block (SystemInformationBlock,SIB).Wherein, MIB is that base station passes through Physical Broadcast Channel (Physical Broadcast Channel, PBCH) it is sent to UE's.Synchronization signal and PBCH occupy different running time-frequency resources respectively.

New generation of wireless access technology (new radio access technology's, NR) researchs and proposes and can pass through The coverage distance of beam shaping (beam forming) raising synchronization signal and broadcast singal.In order to adapt to wanting for beam shaping It asks, introduces the concept of synchronization signal block (Synchronization Signal block, SS block).Wave beam and SS Block has configurable mapping relations, such as each wave beam in multi-beam sends different SS block or 2 waves Beam can send same SS block.

PSS, SSS and PBCH form one using the mode of time division multiplexing (Time Division Multiplexing, TDM) A SS block.In other words, include in each SS block to transmit the orthogonal frequency division multiplexing of PSS (English: Orthogonal Frequency Division Multiplexing, OFDM) symbol, the OFDM symbol to transmit SSS and To transmit the OFDM symbol of PBCH.

One or more SS block form a synchronous signal impulse (English: Synchronization Signal Burst, SS burst), one or more SS burst form a synchronous signal impulse collection (English: Synchronization Signal Burst set,SS burst set).It therefore include one or more SS block in a SS burst set. In the case where including multiple SS block in a SS burst set, for actual demands such as frame alignment, communication system is needed Increase the information to indicate sequence of the SS block in affiliated SS burst set.

It is above-mentioned to indicate a SS block in affiliated SS how the network equipment by taking base station as an example sends to UE The information of sequence in burst set becomes a problem to be solved.

Summary of the invention

The embodiment of the present application provides a kind of method of synchronous signal transmission, for providing a kind of network equipment to terminal device Send the scheme to indicate the instruction information of sequence of the SS block in affiliated SS burst set.

In a first aspect, providing a kind of method of synchronous signal transmission, comprising:

The network equipment generates synchronization signal block and to indicate the synchronization signal block in affiliated synchronous signal impulse collection In sequence instruction information, the synchronization signal block includes Physical Broadcast Channel PBCH symbol；

The network equipment generates two M sequences, the initial value of the LFSR according to linear feedback shift register LFSR It is to be determined according to the partial information in the instruction information；

The network equipment is added after carrying out cyclic shift to described two M sequences, generates a Gold sequence；

The network equipment intercepts a subsequence as demodulated reference signal sequence, the solution from the Gold sequence The signal transmitted in the running time-frequency resource for adjusting reference signal sequence to be used to map the PBCH symbol demodulates,

The running time-frequency resource includes first resource and Secondary resource；

The network equipment is sent by the first resource and removes the portion in Master Information Block MIB and the instruction information Divide remaining information except information；With

The network equipment sends the demodulated reference signal sequence by the Secondary resource.

In the method for synchronous signal transmission provided by the embodiments of the present application, the network equipment is according to the part in instruction information LFSR of the information initializing to generate M sequence, so that the Gold sequence that is generated according to M sequence and from Gold sequence The demodulated reference signal sequence of middle interception is unique corresponding with the partial information.In this way by partial information with hidden The mode of formula carries in demodulated reference signal sequence, rather than instruction information is all sent out by PBCH in manner shown It send, to reduce the data volume transmitted in PBCH, has saved the running time-frequency resource of PBCH.

In one possible implementation, the size of the LFSR is 31, and the LFSR initial value is c_init,Wherein c_init=2^p*PCID+2^q*SS_idx+ 1, wherein PCID is cell mark Know, SS_idxIt is the decimal representation of the partial information, p is the natural number less than or equal to 20, and q is the nature less than or equal to 27 Number,

The length of each M sequence in described two M sequences is I, and I is natural number, and the value range of I is 31 < I < 2³¹- 1,

First M sequence in described two M sequences is expressed as x₀(n+31)=(x₀(n+3)+x₀(n)) mod2, described One M sequence is the LFSR according to multinomial x³¹+x³+ 1 is calculated, n=I-31；

Second M sequence in described two M sequences is expressed as x₁(n+31)=(x₁(n+7)+x₁(n)) mod2, described Two M sequences are the LFSR according to multinomial x³¹+x⁷+ 1 is calculated, n=I-31；

The Gold sequence is expressed as c (n)=(x₀(n+N_c)+x₁(n+N_c)) mod2, wherein N_cIndicate the cyclic shift Digit, the length of the Gold sequence is G, N_c, G be natural number, and G=I.

In one possible implementation, 3344, N I_cFor 3200, G 3344, the demodulated reference signal sequence It is expressed as r (n)=1-2*c (n), n=1 ..., 144.

It in one possible implementation, include 2 PBCH symbols, the Secondary resource packet in the synchronization signal block The corresponding different piece of 2 PBCH symbols shown in including；

The network equipment sends the demodulated reference signal sequence by the Secondary resource, comprising:

The demodulated reference signal sequence average is divided into identical first subsequence of length and second by the network equipment Subsequence；

First subsequence and second subsequence are respectively mapped to the Secondary resource by the network equipment Different piece；

First subsequence and second subsequence are sent by the different piece of the Secondary resource.

Second aspect additionally provides the method for synchronous signal transmission, including

Terminal device obtains arrangement set to be selected, includes multiple sequences to be selected in the arrangement set to be selected, the multiple The generating process of a sequence to be selected in sequence to be selected includes: to generate two M sequences, the initial value of the LFSR according to LFSR It is to determine that the instruction information is to refer to according to one of the corresponding value set of partial information indicated in information value Show the sequence that synchronization signal block is concentrated in affiliated synchronous signal impulse；It is added after carrying out cyclic shift to described two M sequences, it is raw At a Gold sequence；A subsequence is intercepted from the Gold sequence as sequence to be selected；

The terminal device detects the demodulated reference signal that the network equipment is sent；

The terminal device is selected highest with the demodulated reference signal correlation from the arrangement set to be selected One sequence to be selected；

The terminal device is determined and is used when generating selected sequence to be selected according to selected sequence to be selected To determine the partial information of the initial value of LFSR.

The third aspect additionally provides a kind of network equipment, including transceiver and processor, wherein

The processor, for generating synchronization signal block and to the determination synchronization signal block in affiliated synchronization signal The instruction information of sequence in pulse set includes Physical Broadcast Channel PBCH symbol in the synchronization signal block；

Two M sequences are generated according to linear feedback shift register LFSR, the initial value of the LFSR is according to the finger Show what the partial information in information determined；

Cyclic shift is carried out to described two M sequences, generates a Gold sequence；

A subsequence is intercepted from the Gold sequence as demodulated reference signal sequence, the demodulated reference signal sequence It arranges the signal transmitted in the running time-frequency resource for mapping the PBCH symbol to demodulate, the time-frequency of the PBCH symbol mapping It include first resource and Secondary resource in resource, the first resource is in the running time-frequency resource of the PBCH symbol mapping to pass The running time-frequency resource of defeated Master Information Block MIB, the Secondary resource are in the running time-frequency resource of the PBCH symbol mapping except described first Running time-frequency resource except resource；

The transceiver, for being sent in the instruction information in addition to the partial information by the first resource Remaining information, and pass through the Secondary resource and send the demodulated reference signal sequence.

In one possible implementation, the size of the LFSR is 31, and the LFSR initial value is c_init,Wherein c_init=2^p*PCID+2^q*SS_idx+ 1, wherein PCID is cell mark Know, SS_idxIt is the decimal representation of the partial information, p is less than the natural number equal to 20, and q is the nature less than or equal to 27 Number,

The processor, be also used to for the demodulated reference signal sequence average being divided into identical first subsequence of length and Second subsequence；First subsequence and second subsequence are respectively mapped to the different piece of the Secondary resource；

The transceiver, for sending first subsequence and described second by the different piece of the Secondary resource Subsequence.

Fourth aspect additionally provides a kind of terminal device, including transceiver and processor, wherein

The processor includes multiple sequences to be selected, institute in the arrangement set to be selected for obtaining arrangement set to be selected The generating process for stating a sequence to be selected in multiple sequences to be selected includes: to generate two M sequences according to LFSR, the LFSR's Initial value is determined according to one of the corresponding value set of partial information indicated in information value, the instruction information The sequence concentrated to indicate synchronization signal block in affiliated synchronous signal impulse；After carrying out cyclic shift to described two M sequences It is added, generates a Gold sequence；A subsequence is intercepted from the Gold sequence as sequence to be selected；

The transceiver, the demodulated reference signal sent for detecting the network equipment；

The processor is also used to be selected from the arrangement set to be selected with the demodulated reference signal correlation most A high sequence to be selected；

According to selected sequence to be selected, determine when generating selected sequence to be selected to determining LFSR's The partial information of initial value.

5th aspect, provides a kind of method of synchronous signal transmission, comprising:

The network equipment generates synchronization signal block and to the determination synchronization signal block in affiliated synchronous signal impulse collection In sequence instruction information, the synchronization signal block includes Physical Broadcast Channel PBCH symbol；

The network equipment generates two M sequences according to linear feedback shift register LFSR；

The network equipment intercepts an at least cross-talk sequence as the demodulated reference signal sequence from the Gold sequence Column, the initial position when subsequence is intercepted is determined according to the partial information, the demodulated reference signal sequence The signal transmitted in running time-frequency resource for mapping the PBCH symbol demodulates,

It include first resource and Secondary resource in the running time-frequency resource；

In the generation method of demodulated reference signal sequence provided by the embodiments of the present application, the network equipment is according to a size Biggish LFSR generates a longer Gold sequence.Cross-talk sequence demodulation reference letter is being intercepted from longer Gold sequence When number sequence, the initial position that intercepts subsequence is determined according to the partial information in instruction information, so that interception Demodulated reference signal sequence is unique corresponding with the partial information.In this way by partial information in implicit mode It carries in demodulated reference signal sequence, rather than instruction information is all sent by PBCH in manner shown, to subtract Lack the data volume transmitted in PBCH, saves the running time-frequency resource of PBCH.

In one possible implementation, the size of the LFSR is 31, and the LFSR initial value isWherein c_init=2^m* PCID+1, wherein PCID is cell ID, and m is small In be equal to 21 natural number,

The Gold sequence is expressed as c (n)=(x₀(n+N_c)+x₁(n+N_c)) mod2, wherein N_cIndicate the cyclic shift Digit, the length of the Gold sequence is G, N_c, G be natural number, and G=I；

The initial position when subsequence is intercepted is expressed as k,Wherein SS_idxIt is described The decimal representation of partial information.

In one possible implementation, 3344, N I_cFor 3200, G 3344, at least one described subsequence is One subsequence, the subsequence table are shown as r (n)=1-2*c (n), n=k ..., k+143.

The initial position when subsequence is intercepted is expressed as k₁And k₂,k₂=N_c-k₁+ 1, wherein SS_idxIt is the decimal representation of the partial information.

In one possible implementation, 3344, N I_cFor 3200, G 3344, at least one described subsequence is Two subsequences, the first subsequence table at least one described subsequence are shown as r₁(n)=1-2*c (n), n=k₁,...,k₁+ 71, the second subsequence table at least one described subsequence is shown as r₂(n)=1-2*c (n), n=k₂,...,k₂+71。

6th aspect, provides a kind of method of synchronous signal transmission, including

Terminal device obtains arrangement set to be selected, includes multiple sequences to be selected in the arrangement set to be selected, the multiple The generating process of a sequence to be selected in sequence to be selected includes: to generate two M sequences according to LFSR；To described two M sequences It is added after carrying out cyclic shift, generates a Gold sequence；An at least cross-talk sequence is intercepted from the Gold sequence as institute Demodulated reference signal sequence is stated, the initial position when subsequence is intercepted is corresponding according to the partial information in instruction information One of value set value determine that the instruction information is to indicate synchronization signal block in affiliated synchronous signal impulse The sequence of concentration；

The terminal device is determined and is used when generating selected sequence to be selected according to selected sequence to be selected The partial information of initial position when determining that subsequence is intercepted.

7th aspect, provides a kind of network equipment, including transceiver and processor, wherein

The processor, for generating synchronization signal block and to the determination synchronization signal block in affiliated synchronization signal The instruction information of sequence in pulse set, the synchronization signal block include Physical Broadcast Channel PBCH symbol；

Two M sequences are generated according to linear feedback shift register LFSR；

An at least cross-talk sequence is intercepted from the Gold sequence as the demodulated reference signal sequence, the subsequence Initial position when being intercepted is determined according to the partial information, and the demodulated reference signal sequence is used for the PBCH The signal transmitted in the running time-frequency resource of symbol mapping is demodulated,

The transceiver removes institute for sending by the first resource in Master Information Block MIB and the instruction information State remaining information except partial information；The demodulated reference signal sequence is sent by the Secondary resource.

The processor, be also used to for the demodulated reference signal sequence average being divided into identical first subsequence of length and Second subsequence；First subsequence and second subsequence are respectively mapped to the Secondary resource by the network equipment Different piece；

The processor is also used to for first subsequence and second subsequence being respectively mapped to second money The different piece in source；

Eighth aspect provides a kind of terminal device, including transceiver and processor, wherein

The processor obtains arrangement set to be selected, includes multiple sequences to be selected in the arrangement set to be selected, described more The generating process of a sequence to be selected in a sequence to be selected includes: to generate two M sequences according to LFSR；To described two M sequences Column are added after carrying out cyclic shift, generate a Gold sequence；An at least cross-talk sequence conduct is intercepted from the Gold sequence The demodulated reference signal sequence, the initial position when subsequence is intercepted are according to the partial information pair in instruction information What one of the value set answered value determined, the instruction information is to indicate synchronization signal block in affiliated synchronization signal arteries and veins Rush the sequence concentrated；

According to selected sequence to be selected, to determine subsequence when determining the selected sequence to be selected of generation The partial information of initial position when being intercepted.

9th aspect, provides a kind of method of synchronous signal transmission, comprising:

The network equipment generates at least one set of output sequence according to linear feedback shift register LFSR, and described at least one It include two output sequences in every group of output sequence in group output sequence；

The network equipment is added after the output sequence described in every group carries out cyclic shift respectively, and generation one is corresponding Gold sequence, to obtain at least one Gold sequence, the digit of the cyclic shift is determined according to the partial information；

The network equipment generates one according to each of at least one Gold sequence Gold sequence respectively The demodulated reference signal sequence, the demodulated reference signal sequence pass in the running time-frequency resource for mapping the PBCH symbol Defeated signal is demodulated,

In the generation method of demodulated reference signal sequence provided by the embodiments of the present application, the network equipment utilizes one LFSR, according to predetermined initial value generate at least one set of output sequence (output sequence can be the M sequence that LFSR is directly generated, Can be another sequence obtained after the M sequence circulation directly generated based on LFSR is supplied), then every group of output sequence is carried out It is added after cyclic shift and obtains a Gold sequence, to obtain at least one Gold sequence, wherein the digit of cyclic shift is It is determined according to the partial information in the instruction information, so that the Gold sequence that is generated according to M sequence and from Gold The demodulated reference signal sequence intercepted in sequence is unique corresponding with the partial information.In this way by partial information It is carried in demodulated reference signal sequence in implicit mode, rather than instruction information is all passed through into PBCH in manner shown It sends, to reduce the data volume transmitted in PBCH, has saved the running time-frequency resource of PBCH.

In one possible implementation, at least one set of output sequence is one group of M sequence, the size of the LFSR It is 31,

The LFSR initial value is c_init,Wherein c_init= 2^m* PCID+1, wherein PCID is cell ID, and m is less than the natural number equal to 21,

The length for each M sequence in two M sequences for including in one group of M sequence is I, and I is natural number, and I's takes Value range is 31 < I < 2³¹- 1,

First M sequence in one group of M sequence is expressed as x₀(n+31)=(x₀(n+3)+x₀(n)) mod2, described One M sequence is the LFSR according to multinomial x³¹+x³+ 1 is calculated, n=I-31；

The Gold sequence is expressed as c (n)=(x₀(n+N_c)+x₁(n+N_c)) mod2, wherein N_cIndicate the cyclic shift Digit, the length of the Gold sequence is G, N_c, G be natural number, and G=I, wherein N_c=3200* (SS_idx+ 1), wherein SS_idxIt is the decimal representation of the partial information.

In one possible implementation, 3344 I, the demodulated reference signal are intercepted from the Gold sequence , the demodulated reference signal is expressed as r (n)=1-2*c (n), n=1 ..., 144.

In one possible implementation, at least one set of output sequence is one group of output sequence, the LFSR's Having a size of 7, the length of each output sequence in one group of output sequence is 144,

The first output sequence in one group of output sequence is expressed as x₀(n+7)=(x₀(n+3)+x₀(n)) mod2, institute Stating the first output sequence is the LFSR according to multinomial x⁷+x³+ 1 is calculated, and the LFSR generates first output sequence When initial value be x₀(1)~x₀(6)=0, x₀(7)=1, n=I-7；

The second output sequence in one group of output sequence is expressed as x₁(n+7)=(x₁(n+1)+x₁(n)) mod2, institute Stating the second output sequence is the LFSR according to multinomial x⁷+ x+1 is calculated, and the LFSR generates first output sequence When initial value be x₁(1)~x₁(6)=0, x₁(7)=1, n=I-7；

The Gold sequence is expressed as c (n)=(x₀(n+i₁)+x₁(n+i₂)) mod2, wherein (i₁,i₂) indicate cyclic shift When digit, whereini₂=(SS_idxMod 2)+(NID1mod 112), PCID=3*NID1+NID2, wherein i₁Cyclic shift is carried out to first output sequence when to generate the Gold sequence Digit, i₂The digit of cyclic shift is carried out when to generate the Gold sequence to second output sequence, PCID is cell mark Know, SS_idxIt is the decimal representation of the partial information, the value range of NID1 is 0,1 ..., and 335, NID2 value range is 0,1,2；

The demodulated reference signal sequence is expressed as r (n)=1-2*c (n).

The Gold sequence is expressed as c (n)=(x₀(n+i₁)+x₁(n+i₂)) mod2, wherein (i₁,i₂) indicate cyclic shift When digit, wherein i₁The digit of cyclic shift, i are carried out when to generate the Gold sequence to first output sequence₂It makes a living At the digit for carrying out cyclic shift when the Gold sequence to second output sequence, i₁And/or i₂In value respectively with SS_idxWith mapping relations, SS_idxIt is the decimal representation of the partial information；

The demodulated reference signal sequence is expressed as r (n)=1-2*c (n).

In one possible implementation, at least one set of output sequence is two groups of output sequences, the LFSR's Having a size of 6, the length of each output sequence in two groups of output sequences is 72,

The first output sequence in first group of output sequence in two groups of output sequences is expressed as x₀(n+6)=(x₀(n +5)+x₀(n)) mod2, first output sequence are the LFSR according to multinomial x⁶+x⁵+ 1 generation, the LFSR is generated Initial value when first output sequence is x₀(1)~x₀(5)=0, x₀(6)=1, n=I-6；

The second output sequence in first group of output sequence is expressed as x₀(n+6)=(x₀(n+1)+x₀(n)) mod2, Secondth output sequence is the LFSR according to multinomial x⁶What+x+1 was generated, the LFSR generates the second output sequence Initial value when column is x₀(1)~x₀(5)=0, x₀(6)=1, n=I-6；

The first output sequence in second group of output sequence in two groups of output sequences is expressed as x_0-(n+6)=(x_0- (n+1)+x_0-(n)) mod2, the first output sequence in second group of output sequence is the LFSR according to multinomial x⁶+x+1 It generates, the initial value when LFSR generates the first output sequence in second group of output sequence is x_0-(1)~x_0- (5)=0, x_0-(6)=1, n=I-6；

The second output sequence in second group of output sequence is expressed as x₀(n+6)=(x₀-(n+5)+x_0-(n+3)+ x_0-(n+2)+x_0-(n)) mod2, the second output sequence in second group of output sequence is the LFSR according to multinomial x⁶+ x⁵+x³+x²+ 1 generation, the initial value when LFSR generates the second output sequence in second group of output sequence is x_0- (1)~x_0-(5)=0, x_0-(6)=1, n=I-6；

The corresponding Gold sequence of first group of output sequence is expressed as c₁(n)=(x₀(n+i₁)+x₁(n+i₂)) mod2, (i₁,i₂) digit when indicating to generate first group of output sequence corresponding Gold sequence when cyclic shift, wherein i₁To generate The first output sequence in first group of output sequence is followed when the corresponding Gold sequence of first group of output sequence The digit of ring displacement, i₂To in first group of output sequence when Gold sequence corresponding for generation first group of output sequence The second output sequence carry out cyclic shift digit,i₂= (SS_idx1Mod 2)+(NID1mod 112), PCID=3*NID1+NID2,

The corresponding Gold sequence of second group of output sequence is expressed as c₂(n)=(x₀-(n+i_1-)+x₁-(n+i_2-)) Mod2, (i_1-,i_2-) digit when indicating to generate second group of output sequence corresponding Gold sequence when cyclic shift, wherein i_1-To the first output sequence in second group of output sequence when Gold sequence corresponding for generation second group of output sequence Column carry out the digit of cyclic shift, i_2-It is defeated to described second group when Gold sequence corresponding for generation second group of output sequence The second output sequence in sequence carries out the digit of cyclic shift out,

i_2-=(SS_idx2Mod 2)+(NID1mod 112),

PCID is cell ID, SS_idx=SS_idx1+SS_idx2, SS_idxIt is the decimal representation of the partial information, NID1's Value range is 0,1 ..., and 335, NID2 value range is 0,1,2；

R is expressed as according to the demodulated reference signal sequence that the corresponding Gold sequence of first group of output sequence generates₁(n) =1-2*c₁(n)；

R is expressed as according to the demodulated reference signal sequence that the corresponding Gold sequence of second group of output sequence generates₂(n) =1-2*c₂(n)。

The second output sequence in first group of output sequence is expressed as x₀(n+6)=(x₀(n+1)+x₀(n)) mod2, Second output sequence is the LFSR according to multinomial x⁶What+x+1 was generated, the LFSR generates second output sequence When initial value be x₀(1)~x₀(5)=0, x₀(6)=1, n=I-6；

The second output sequence in second group of output sequence is expressed as x₀(n+6)=(x_0-(n+5)+x_0-(n+3)+ x_0-(n+2)+x_0-(n)) mod2, the second output sequence in second group of output sequence is the LFSR according to multinomial x⁶+ x⁵+x³+x²+ 1 generation, the initial value when LFSR generates the second output sequence in second group of output sequence is x_0- (1)~x_0-(5)=0, x_0-(6)=1, n=I-6；

The corresponding Gold sequence of first group of output sequence is expressed as c₁(n)=(x₀(n+i₁)+x₁(n+i₂)) mod2, (i₁,i₂) digit when indicating to generate first group of output sequence corresponding Gold sequence when cyclic shift, wherein i₁To generate The first output sequence in first group of output sequence is followed when the corresponding Gold sequence of first group of output sequence The digit of ring displacement, i₂To generate when first group of output sequence corresponds to Gold sequence in first group of output sequence Second output sequence carries out the digit of cyclic shift, i₁And/or i₂Value respectively with SS_idx1With mapping relations,

The corresponding Gold sequence of second group of output sequence is expressed as c₂(n)=(x_0-(n+i_1-)+x_1-(n+i_2-)) Mod2, (i_1-,i_2-) digit when indicating to generate second group of output sequence corresponding Gold sequence when cyclic shift, wherein i_1-When to generate the corresponding Gold sequence of second group of M sequence to the first output sequence in second group of output sequence into The digit of row cyclic shift, i_2-To second group of output sequence when Gold sequence corresponding for generation second group of output sequence The second output sequence in column carries out the digit of cyclic shift, i_1-And/or i_2-Value respectively with SS_idx2With mapping relations, SS_idx=SS_idx1+SS_idx2, SS_idxIt is the decimal representation of the partial information；

The network equipment is by the demodulation reference generated according to the corresponding Gold sequence of first group of output sequence Signal sequence r₁(n) and according to the corresponding Gold sequence of second group of output sequence the demodulated reference signal sequence r generated₂ (n) it is respectively mapped to the different piece of the Secondary resource；

It is sent by the different piece of the Secondary resource described according to the corresponding Gold sequence of first group of output sequence The demodulated reference signal sequence r of column-generation₁(n) with the demodulation that is generated according to the corresponding Gold sequence of second group of output sequence Reference signal sequence r₂(n)。

Tenth aspect, provides a kind of method of synchronous signal transmission, including

Terminal device obtains arrangement set to be selected, includes multiple sequences to be selected in the arrangement set to be selected, the multiple The generating process of a sequence to be selected in sequence to be selected includes: to generate two M sequences according to LFSR；It is generated at least according to LFSR One group of output sequence, it is described at least one set output sequence in every group of output sequence in include two output sequences；Respectively to every The group output sequence is added after carrying out cyclic shift, generates a Gold sequence, so that at least one Gold sequence is obtained, institute The digit for stating cyclic shift is determined according to one of the corresponding value set of partial information indicated in information value, institute State the sequence that instruction information is concentrated to indicate synchronization signal block in affiliated synchronous signal impulse；According at least one described Gold Each of sequence Gold sequence generates a demodulated reference signal sequence respectively；

The terminal device is determined and is used when generating selected sequence to be selected according to selected sequence to be selected To determine the partial information of the digit of cyclic shift.

On the one hand tenth, provides a kind of network equipment, including transceiver and processor, wherein

According at least one set of output sequence of linear feedback shift register LFSR generation, in at least one set output sequence Every group of output sequence in include two output sequences；

The output sequence described in every group is added after carrying out cyclic shift, a corresponding Gold sequence is generated, to obtain At least one Gold sequence, the digit of the cyclic shift are determined according to the partial information；

According to each of at least one Gold sequence Gold sequence, a demodulation reference is generated respectively Signal sequence, the signal that the demodulated reference signal sequence is transmitted in the running time-frequency resource for mapping the PBCH symbol carry out Demodulation,

The transceiver removes institute for sending by the first resource in Master Information Block MIB and the instruction information State remaining information except partial information；The demodulated reference signal sequence is sent with by the Secondary resource.

In one possible implementation, at least one set of M sequence is one group of M sequence, and the size of the LFSR is 31,

The Gold sequence is expressed as c (n)=(x₀(n+N_c)+x₁(n+N_c)) mod2, wherein N_cIndicate the cyclic shift Digit, the length of the Gold sequence is G, N_c, G be natural number, and G=I, wherein N_c=3200* (SS_idx+1)。

In one possible implementation, 144 I, the demodulated reference signal are intercepted from the Gold sequence , the demodulated reference signal is expressed as r (n)=1-2*c (n), n=1 ..., 144.

The demodulated reference signal sequence is expressed as r (n)=1-2*c (n).

The second output sequence in second group of output sequence is expressed as x_0-(n+6)=(x_0-(n+5)+x_0-(n+3)+x_0- (n+2)+x_0-(n)) mod2, the second output sequence in second group of output sequence is the LFSR according to multinomial x⁶+x⁵+ x³+x²+ 1 generation, the initial value when LFSR generates the second output sequence in second group of output sequence is x₀-(1) ~x₀(5)=0, x₀(6)=1, n=I-6；

The corresponding Gold sequence of second group of output sequence is expressed as c₂(n)=(x_0-(n+i_1-)+x_1-(n+i_2-)) Mod2, (i_1-,i_2-) digit when indicating to generate second group of output sequence corresponding Gold sequence when cyclic shift, wherein i_1-To the first output sequence in second group of output sequence when Gold sequence corresponding for generation second group of output sequence Column carry out the digit of cyclic shift, i_2-It is defeated to described second group when Gold sequence corresponding for generation second group of output sequence The second output sequence in sequence carries out the digit of cyclic shift out,

i_2-=(SS_idx2Mod 2)+(NID1mod 112),

The first output sequence in second group of output sequence in two groups of output sequences is expressed as x₀(n+6)=(x_0- (n+1)+x₀(n)) mod2, the first output sequence in second group of output sequence is the LFSR according to multinomial x⁶+x+1 It generates, the initial value when LFSR generates the first output sequence in second group of output sequence is x₀(1)~x_0- (5)=0, x_0-(6)=1, n=I-6；

The second output sequence in second group of output sequence is expressed as x_0-(n+6)=(x_0-(n+5)+x₀-(n+3)+ x₀-(n+2)+x_0-(n)) mod2, the second output sequence in second group of output sequence is the LFSR according to multinomial x⁶+ x⁵+x³+x²+ 1 generation, the initial value when LFSR generates the second output sequence in second group of output sequence is x_0- (1)~x_0-(5)=0, x_0-(6)=1, n=I-6；

12nd aspect, additionally provides a kind of terminal device, including transceiver and processor, wherein

The processor includes multiple sequences to be selected, institute in the arrangement set to be selected for obtaining arrangement set to be selected The generating process for stating a sequence to be selected in multiple sequences to be selected includes: to generate two M sequences according to LFSR；It is raw according to LFSR It include two output sequences in every group of output sequence in at least one set output sequence at least one set of output sequence；Point The other output sequence described in every group is added after carrying out cyclic shift, a Gold sequence is generated, to obtain at least one Gold Sequence, the digit of the cyclic shift are true according to one of the corresponding value set of partial information indicated in information value Fixed, the sequence that the instruction information is concentrated to indicate synchronization signal block in affiliated synchronous signal impulse；According to it is described at least Each of one Gold sequence Gold sequence generates a demodulated reference signal sequence respectively；

According to selected sequence to be selected, to determine rotation bit when determining the selected sequence to be selected of generation The partial information of the digit of shifting.

13rd aspect, additionally provides a kind of communication system, including any one of the above-mentioned third aspect or the third aspect Terminal device described in the network equipment described in possible implementation and fourth aspect；Or

The network equipment described in any one possible implementation including above-mentioned 7th aspect or the 7th aspect, and Terminal device described in eighth aspect；Or

The network equipment described in any one possible implementation including above-mentioned tenth one side or the tenth one side, And the 12nd aspect described in terminal device.

Fourteenth aspect provides a kind of computer readable storage medium, stores in the computer readable storage medium There is instruction, when run on a computer, so that computer executes method described in above-mentioned various aspects.

15th aspect, the another aspect of the application provides a kind of computer program product comprising instruction, when its When being run on computer, so that computer executes method described in above-mentioned various aspects.

In the various possible implementations of above-mentioned various aspects and various aspects, the instruction information is to synchronize Block time index SBTI.

Detailed description of the invention

Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to required use in embodiment description Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present application, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.

Fig. 1 is a kind of schematic diagram of network system of the embodiment of the present application application；

Fig. 2 is the schematic diagram of the structure of several possible synchronization signal blocks provided by the embodiments of the present application；

Fig. 3 is the principle flow chart of the method for synchronous signal transmission provided by the embodiments of the present application；

Fig. 4 is a kind of structural schematic diagram of LFSR provided by the embodiments of the present application；

Fig. 5 is a kind of flow chart of the method for synchronous signal transmission provided by the embodiments of the present application；

Fig. 6 is the flow chart of the method for another synchronous signal transmission provided by the embodiments of the present application；

Fig. 7 is the flow chart of the method for another synchronous signal transmission provided by the embodiments of the present application；

Fig. 8 is the flow chart of the method for another synchronous signal transmission provided by the embodiments of the present application；

Fig. 9 is the flow chart of the method for another synchronous signal transmission provided by the embodiments of the present application；

Figure 10 is the flow chart of the method for another synchronous signal transmission provided by the embodiments of the present application；

Figure 11 is a kind of structural schematic diagram of the network equipment provided by the embodiments of the present application；

Figure 12 is the structural schematic diagram of another network equipment provided by the embodiments of the present application；

Figure 13 is a kind of structural schematic diagram of terminal device provided by the embodiments of the present application；

Figure 14 is a kind of structural schematic diagram of terminal device provided by the embodiments of the present application.

Specific embodiment

, it is specified that the SS block number that is contained up in the next SS burst set of different carrier frequencies scene in NR Amount, such as in carrier frequency in 0~3GHz scene, a SS burst set contains up to 4 SS block, in carrier frequency Rate is in 3GHz~6GHz scene, and a SS burst set contains up to 8 SS block, is 6GHz or more in carrier frequency In scene, a SS burst set contains up to 64 SS block.In order to distinguish 64 SS block, need using 6bit Data, therefore information of the Communication System Design to indicate sequence of the SS block in affiliated SS burst set, Such as synchronization signal block time index (SS Block Time Index, SBTI), occupy 6bit.

Some are researched and proposed can be by above-mentioned to indicate sequence of the SS block in affiliated SS burst set Information carried in Master Information Block (Master Information Block, MIB) in manner shown, wherein MIB passes through The portion of time frequency resources transmission of the PBCH symbol mapping of SS block.However, due to also needing to carry some important in MIB and needing The parameter frequently to send, such as downlink system bandwidth, physical mixed automatic re-transmission indicating channel (Physical Hybrid ARQ Indicator Channel, PHICH) configuration, System Frame Number (System Frame Number, SFN) etc., thus to pass The running time-frequency resource of defeated MIB is more in short supply.If will indicate that all bit of information are all carried in the time-frequency to transmit MIB The other function for relying on MIB realization will be impacted in resource.It is provided to save the time-frequency to transmit MIB of system distribution Source, the application propose using other transfer resources in the corresponding running time-frequency resource of PBCH in addition to the running time-frequency resource that MIB is occupied with Implicit mode carries the partial information in instruction information, the running time-frequency resource that MIB is occupied in the corresponding running time-frequency resource of such PBCH It only needs to carry remaining information in instruction information, thus reduce the information content for needing to carry by the running time-frequency resource of PBCH, The running time-frequency resource of PBCH is saved.

Further, the application propose using demodulated reference signal (Demodulation Reference Signal, DMRS the partial information in instruction information, such as 2bit the or 3bit information in SBTI) are carried with implicit.In PBCH in this way The running time-frequency resource that MIB is occupied only needs to transmit the remaining 4bit or 3bit information in SBTI, provides with the time-frequency that MIB in PBCH is occupied Whole 6bit information that source needs to transmit SBTI originally are compared, and the running time-frequency resource of PBCH occupancy has been saved.

Below in conjunction with attached drawing, the technical solution in the application is described.

Fig. 1 gives a kind of schematic diagram of network system of the embodiment of the present application application.As shown in Figure 1, network system 100 It may include the network equipment 102 and terminal device 104,106,108,110,112 and 114.Wherein, the network equipment is set with terminal Pass through wireless connection between standby.It should be understood that Fig. 1 is only illustrated so that network system includes a network equipment as an example, but this hair Bright embodiment is not limited to this, for example, system can also include more network equipments；Similarly, system also may include more More terminal devices.

This specification combination terminal device describes each embodiment.Terminal device can also refer to UE, access terminal, movement Platform, remote station, remote terminal, mobile device, user terminal, user agent.Terminal device is also possible to have wireless communication function Can handheld device, calculate equipment or be connected to radio modem other processing equipments, mobile unit, wearable set It is standby, public land mobile network (the Public Land Mobile of terminal device or the following evolution in the following 5G network Network, PLMN) terminal device etc. in network.

Non-limiting as example, in embodiments of the present invention, which can also be wearable device.It is wearable Equipment is referred to as wearable intelligent equipment, is to carry out intelligentized design to daily wearing using wearable technology, develop The general name for the equipment that can be dressed, such as glasses, gloves, wrist-watch, dress ornament and shoes.Wearable device is directly worn, or It is a kind of portable device for being integrated into the clothes or accessory of user.Wearable device is not only a kind of hardware device, even more It is interacted by software support and data interaction, cloud to realize powerful function.Broad sense wearable intelligent equipment includes function Entirely, size is big, can not depend on smart phone realizes complete or partial function, such as: smartwatch or intelligent glasses etc., with And only it is absorbed in certain a kind of application function, it needs to be used cooperatively with other equipment such as smart phone, such as all kinds of carry out sign monitorings Intelligent bracelet, intelligent jewellery etc..In each embodiment of the application, by taking UE as an example, to the structure and process flow of terminal device It is illustrated.

This specification combination network equipment describes each embodiment.The network equipment, which can be, to be used for and terminal equipment in communication Equipment, the network equipment can be global system for mobile telecommunications (Global System of Mobile communication, ) or base station (the Base Transceiver in CDMA (Code Division Multiple Access, CDMA) GSM Station, BTS), be also possible to wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) the base station in system (NodeB, NB) can also be in long term evolution (Long Term Evolution, LTE) system Evolved base station (Evolutional Node B, eNB or eNodeB), can also be cloud Radio Access Network (Cloud Radio Access Network, CRAN) wireless controller under scene, or in future 5G network base station (gNB or gNodeB).In each embodiment of the application, by taking base station as an example, the structure and process flow of the network equipment are illustrated.

Attached drawing 2 is the schematic diagram of the structure of several possible synchronization signal blocks provided by the embodiments of the present application.Such as Fig. 2 institute Show, a synchronous signal impulse collection includes multiple SS block, and a synchronous signal impulse collection is mapped at least one time slot (slot) it is sent on.

Optionally, in NR, the primary synchronization signal (Primary of 1 OFDM symbol is included in a SS block Synchronization Signal, PSS) or new wireless primary synchronization signal (New Radio Primary Synchronization Signal, NR-PSS), the secondary synchronization signal (Secondary of 1 OFDM symbol Synchronization Signal, SSS) or new wireless secondary synchronization signal (New Radio Secondary Synchronization Signal, NR-SSS) and 2 OFDM symbols Physical Broadcast Channel (Physical Broadcast Channel, PBCH) or new radio physical broadcast channel (New Radio Physical Broadcast Channel, NR- PBCH).Wherein NR-PSS and NR-SSS can be respectively provided with the function of PSS and SSS in traditional standard (for example, LTE).Example Such as, NR-PSS is determined for the cell ID in OFDM symbol timing, Frequency Synchronization, slot timing and cell group；NR-SSS It is determined for frame timing, cell group etc..Alternatively, NR-PSS and NR-SSS also can have it is different from current PSS and SSS Function, the embodiment of the present application do not limit this.In addition, NR-PSS and NR-SSS can also using respectively with current PSS Identical or different sequence, the embodiment of the present invention also do not limit this with SSS.In addition, in the embodiment of the present application, NR-PBCH It can have the function identical or different with the PBCH in traditional standard (for example, LTE), the embodiment of the present invention is also unlimited to this It is fixed.Optionally, Master Information Block (Master Information Block, MIB) can be carried in NR-PBCH.It needs to illustrate It is that arrangement mode of the corresponding OFDM symbol of PSS, SSS and PBCH in SS block is not limited to four kinds shown in Fig. 2.

For brevity, in the subsequent embodiment of the application, NR-PSS and PSS are referred to as PSS, by NR-SSS and SSS is referred to as SSS, and NR-PBCH and PBCH are referred to as PBCH.

Attached drawing 3 is the principle flow chart of the method for synchronous signal transmission provided by the embodiments of the present application.Attached side shown in Fig. 3 Method includes the following steps.

Step 30, the network equipment generates synchronization signal block and to the determination synchronization signal block in affiliated synchronization signal The instruction information of sequence in pulse set.

The network equipment by taking base station as an example is can be generated when generating ss block to indicate the ss block affiliated The instruction information for the sequence that synchronous signal impulse is concentrated, the application are illustrated the instruction information by taking SBTI as an example.SBTI Can be in the network equipment to realize radio protocol stack processing chip or program in wireless heterogeneous networks (Radio Resource Control, RRC) layer, media access control layer (Media Access Control, MAC) layer or physics What (Pyhsical, PHY) layer generated, the application is not defined the generating mode of SBTI herein.

Step 31, the network equipment generates demodulated reference signal sequence according to the partial information in the instruction information.

Indicate that the partial information in information refers to the content in instruction information in predetermined bit.For example, SBTI is occupied in total 6bit, partial information refer to 2bit or 3bit in SBIT.The present embodiment bit corresponding for partial information is in SBTI Position without limit, can be the content of continuous 2bit or 3bit in SBIT, be also possible to the 2bit being spaced in SBIT or The content of 3bit.By taking the 2bit that partial information refers in SBIT as an example, partial information be can be in the 1-2bit in SBTI It is interior in content, the content being also possible in the 3-4bit in SBTI, or the inverse 1-2bit that is also possible in SBIT Hold, or the content in the 1bit and inverse 1bit being also possible in SBIT.Specifically, it is assumed that SBTI is001100, such as Fruit part information is the content in the 1-2bit in SBTI, then partial information is 00.

In the embodiment of the present application, it is passed in the running time-frequency resource that demodulated reference signal sequence is used to map the PBCH symbol Defeated signal is demodulated, and in other words, demodulated reference signal sequence is used to demodulate the signal transmitted in PBCH, thus From obtaining the information transmitted in PBCH, such as MIB in demodulation result.

The process for generating demodulated reference signal generally comprises following link: firstly, according to linear feedback shift register (Linear Feedback Shift Register, LFSR) generates M sequence.It is obtained next, carrying out cyclic shift to M sequence Gold sequence.Finally, intercept a cross-talk sequence from Gold sequence as demodulated reference signal sequence, or to Gold sequence into Row transformation obtains demodulated reference signal sequence.

Attached drawing 4 is the structural schematic diagram of a LFSR.LFSR can be described with a multinomial, the feedback point in LFSR With the factor alpha in the multinomial_iIt is corresponding.Polynomial item number can also be seen as the size of LFSR.

Polynomial form such as f (x)=x^L+α_L-1x^L-1+...+α₂x²+α₁X+1, i=1...L-1, wherein α_iValue be 0 Or 1.

In the fixed situation of value of L, according to the multinomial and an initial value of a given coefficient, Ke Yiwei One ground generates a M sequence, and the length of M sequence is denoted as I, and the value range of I is L < I < 2^L-1。

In the fixed situation of value of L, if the corresponding sequence generated of a multinomial is M sequence, generate The multinomial of the M sequence is also referred to as primitive polynomial (primitive polynomial).M sequence is a kind of with good The pseudo-random sequence of cross correlation and good cyclic shift correlation.Good cross correlation refers to two that different LFSR are generated Related operation, the energy very little of correlation peak are carried out between a M sequence.Good cyclic shift correlation refers to a M sequence Related operation between the sequence that cyclic shift obtains, the energy very little of correlation peak are carried out with itself.Find primitive polynomial Process can refer to existing document, no longer be described in detail herein.When generating M sequence with the LFSR that length is L, in addition to needing basis Multinomial, it is also necessary to set one group of initial value for LFSR, this group of initial value can also be known as the initial value of M sequence, i.e. M sequence The value of initial L symbol in column.

The network equipment obtains two according to two different primitive polynomials in the fixed situation of value of L in the application It is subsequent that Gold sequence is obtained to two M sequences progress cyclic shifts after a M sequence.And in a predetermined manner further according to Gold sequence generates demodulated reference signal sequence.If using above-mentioned during above-mentioned generation demodulated reference signal sequence Partial information in SBTI, so that Gold sequence and the partial information in SBTI are uniquely corresponding, then demodulated reference signal sequence It is substantially also unique corresponding with M sequence.

The network equipment generates demodulated reference signal sequence according to the partial information in SBTI and sends demodulated reference signal sequence Column.Terminal device can use after detecting demodulated reference signal sequence and generate demodulated reference signal sequence with the network equipment Corresponding inverse process obtains the partial information in SBTI according to the demodulated reference signal sequence detected.Terminal device will obtain Remaining information in SBTI that the partial information in SBTI obtained is explicitly sent with the first resource passed through in PBCH is combined, can To obtain complete SBTI.

It is above-mentioned according to LFSR generate demodulated reference signal sequence during, the network equipment can in several ways by Partial information in SBTI is applied to the generating process of demodulated reference signal sequence, so that demodulated reference signal sequence is implicit Ground carries the partial information in SBTI.These modes include but is not limited to: can use the partial information initialization in SBTI The initial value of LFSR, or when the progress cyclic shift generation Gold sequence to M sequence determining using the partial information in SBTI The digit of cyclic shift, or determined using the partial information in SBTI and intercept demodulated reference signal from longer Gold sequence Initial position when sequence.It is appreciated that aforesaid way can also with connected applications, such as according in SBTI partial information determine Digit when cyclic shift generates Gold sequence is carried out to M sequence, and is determined according to the partial information in SBTI from longer Initial position when demodulated reference signal sequence is intercepted in Gold sequence.The embodiment of the present application is subsequent will be in conjunction with each attached drawing to demodulation The generating process of reference signal sequence is described in detail.

Step 32, the network equipment is sent in the instruction information by the first resource in PBCH except the partial information Except remaining information.

For ease of description, the embodiment of the present application distinguishes different resources, and the time-frequency that PBCH symbol is mapped provides Source is divided into two classes, i.e. first resource and Secondary resource.The first resource be PBCH symbol mapping running time-frequency resource in use To transmit the running time-frequency resource of Master Information Block MIB.The Secondary resource be in the running time-frequency resource of PBCH symbol mapping with it is described The different running time-frequency resource of first resource.Secondary resource can be in the running time-frequency resource of the PBCH symbol mapping in addition to first resource Resource, be also possible to the part resource in addition to first resource.

The network equipment is by remaining information MAP in addition to the partial information in the instruction information to first resource In.Still by taking SBIT as an example, it is assumed that SBTI 001100, if partial information is interior in 1bit and 2bit in SBTI Hold, then partial information is 00, remaining information is 1100.The resource element that the network equipment is mapped to first resource for 1100 In (Resource Element, RE), remaining information 1100 is then sent by the RE.

Step 33, the network equipment sends the demodulated reference signal sequence by the Secondary resource.

The network equipment is mapped to the partial information in Secondary resource.Still by taking SBIT as an example, the network equipment is reflected 00 It is mapped in the RE of Secondary resource, then passes through the RE transmitting portion information 00.

In the method for synchronous signal transmission provided by the embodiments of the present application, the network equipment will be to indicate a SS Partial information of the block in the instruction information of the sequence in affiliated SS burst set is carried in implicit mode joins in demodulation It examines in signal sequence, rather than instruction information is all sent by PBCH in manner shown, to reduce in PBCH The data volume of transmission has saved the running time-frequency resource of PBCH.

Attached drawing 5 is a kind of flow chart of the method for synchronous signal transmission provided by the embodiments of the present application.Attached drawing 5 is in attached drawing 3 On the basis of, emphatically to the generating process of demodulated reference signal sequence, the transmission process of demodulated reference signal and terminal device Receive process be described in detail.In the generating process of attached demodulated reference signal sequence shown in fig. 5, network equipment choosing A larger-size LFSR is selected, according to the initial value of the partial information initialization LFSR in instruction information, thus generation and portion Divide the corresponding longer M sequence of information.Cyclic shift is carried out to M sequence again, a longer Gold sequence is obtained, from Gold sequence A subsequence is intercepted in column as demodulated reference signal sequence.

Step 50, the network equipment generates synchronization signal block and to the determination synchronization signal block in affiliated synchronization signal The instruction information of sequence in pulse set.

51~step 53 of following steps is that the step 31 in attached drawing 3 is described in detail.

Step 51, the network equipment generates two M sequences according to LFSR, and the length of the M sequence is I, and I is natural number, institute State the initial value c of LFSR_initIt is to be determined according to the partial information in instruction information.

Wherein the size (i.e. most possible item numbers of primitive polynomial) of LFSR is indicated with L, the M sequence that LFSR is generated Length is expressed as I, and the value range of I is L < I < 2^L-1。

Optionally, in the present embodiment, L value is 31.Correspondingly, the length I value range of the M sequence of LFSR generation is 31<I<2³¹- 1, the length I value of M sequence is 3344 in the present embodiment.LFSR generates two according to two primitive polynomials respectively A M sequence.The embodiment of the present application will be come in the subsequent describing mode using " the first primitive polynomial ", " the second primitive polynomial " Different multinomials, subsequent " the first subsequence " described in a similar way are distinguished, " second subsequence " etc. is not to indicate Ordinal relation, but in order to distinguish different subsequences.

First primitive polynomial is x³¹+x³Corresponding first M sequence generated of+1, LFSR is expressed as x₀(n+31)=(x₀ (n+3)+x₀(n)) mod2, wherein n=I-31.

Second primitive polynomial is x³¹+x⁷Corresponding second M sequence generated of+1, LFSR is expressed as x₁(n+31)=(x₁ (n+7)+x₁(n)) mod2, wherein n=I-31.

The network equipment initializes the initial value of two M sequences, i.e. x according to partial information₀(0)~x₀(30) and x₁ (0)~x₁(30) value.The initial value of first M sequence isThe initial value of second M sequence isWherein c_init=2^p*PCID+2^q*SS_idx, wherein PCID is cell ID, SS_idxIt is the part letter The decimal representation of breath.Optionally, PCID is the cell ID of the cell of network equipment covering.

Optionally, due to c_init<2³¹, therefore 2^p*PCID<2³⁰, 2^q*SS_idx<2³⁰.According to existing standard, PCID < 2¹⁰, institute With the natural number that the value of p is less than or equal to 20.Due to SS_idx<2³, so the value of q is the natural number less than or equal to 27.

By taking partial information is the 2bit content in SBTI as an example, then all possible value of partial information is 00,01, 10,11, then SS_idxCorresponding value is 0,1,2,3.

By taking partial information is the 3bit content in SBTI as an example, then all possible value of partial information is 000,001, 010,011,100,101,110,111, then SS_idxCorresponding value is 0,1,2,3,4,5,6,7.

Step 52, the network equipment carries out N to described two M sequences_cIt is added after the cyclic shift of position, generates a Gold sequence Column, the length of the Gold sequence are G, N_c, G be natural number, and G=I.

Gold sequence is expressed as c (n)=(x₀(n+N_c)+x₁(n+N_c))mod2.In order to guarantee the demodulation reference ultimately generated Signal sequence has preferable pseudo-randomness, the length G long enough of Gold sequence, then N_cValue range can be 0~5000. In the present embodiment, N_cValue is 3200, then the length of the Gold sequence generated is 3344, i.e. G=I.

Step 53, the network equipment intercepts a subsequence as the demodulated reference signal sequence from the Gold sequence Column, the length of the subsequence of interception are D, and D is natural number, and D is less than G.

As long as the length D of demodulated reference signal sequence is less than or equal to G.Illustratively, it intercepts in the present embodiment Subsequence, i.e., the length of demodulated reference signal sequence be 144, in this case, demodulated reference signal sequence is expressed as r (n) =1-2*c (n), n=1 ..., 144.

The present embodiment does not limit initial position when intercepting demodulated reference signal sequence from Gold sequence.

Step 54, the network equipment is sent in the instruction information by the first resource in PBCH except the partial information Except remaining information.Explanation about step 54 please refers to the description in attached drawing 3 for step 32.

Optionally, if in ss block including 2 PBCH symbols, the Secondary resource in PBCH may include difference Part, i.e., the corresponding portion of time frequency resources of the first PBCH symbol and 2 PBCH symbols in described 2 PBCH symbols In the corresponding portion of time frequency resources of the 2nd PBCH symbol.Network equipment method according to shown in step 51~step 53 is solved After adjusting reference signal sequence r (n), 55~step 57 of following steps can also be performed and send demodulated reference signal sequence.It is i.e. following Step 55~step 57 is a kind of embodiment of the step 33 in attached process shown in Fig. 3.

Step 55, the demodulated reference signal sequence r (n) is equally divided into identical first subsequence of length by the network equipment With the second subsequence.Such as the demodulated reference signal sequence that length is 144 is divided into the first sub- sequence that length is 72 by the network equipment Column and the second subsequence.

Step 56, first subsequence and second subsequence are respectively mapped to the Secondary resource by the network equipment Different piece.Such as first subsequence is mapped in the corresponding portion of time frequency resources of the first PBCH symbol, it will be described Second subsequence is mapped in the corresponding portion of time frequency resources of the 2nd PBCH symbol.

Step 57, the network equipment sends first subsequence and described second by the different piece of the Secondary resource Subsequence.Such as first subsequence is sent by the corresponding portion of time frequency resources of the first PBCH symbol, pass through the 2nd PBCH The corresponding portion of time frequency resources of symbol sends second subsequence.

Correspondingly, terminal device executes and the step 51 in attached drawing 5~step 53 phase after detecting demodulated reference signal Corresponding process obtains the partial information carried in demodulated reference signal, such as the content of 2bit or 3bit in SBTI.Terminal Equipment further uses demodulated reference signal and demodulates to the information transmitted in the first resource of PBCH, obtains from demodulation result Obtain remaining information in the instruction information in addition to the partial information.Terminal device combines obtained partial information and remaining Information, and then complete instruction information is obtained, such as whole 6bit contents in SBTI.

Step 58, terminal device obtains arrangement set to be selected, includes multiple sequences to be selected in the arrangement set to be selected.

Optionally, arrangement set to be selected can be terminal device demodulated reference signal according to shown in step 51~step 53 Create-rule generate, be also possible to what terminal device was got from another equipment.

Specifically, the process of terminal device or another equipment one sequence to be selected of generation includes:

Two M sequences are generated according to LFSR, the initial value of the LFSR is corresponding according to the partial information in instruction information One of value set value determine；

It is added after carrying out cyclic shift to described two M sequences, generates a Gold sequence；

A subsequence is intercepted from the Gold sequence as sequence to be selected.

For example, terminal device is directed to SS when partial information includes the 2bit data in instruction information_idxAll possibility 4 kinds of values, using method shown in step 51~step 53 generate 4 sequences to be selected.

Step 59, terminal device detects the demodulated reference signal that the network equipment is sent.

Step 510, terminal device is selected from the arrangement set to be selected with the demodulated reference signal correlation most A high sequence to be selected.

Optionally, terminal device is by each of the demodulated reference signal received and the arrangement set to be selected sequence to be selected Column carry out correlation detection, the determining highest sequence conduct to be selected with shown demodulated reference signal correlation detection peak value respectively The sequence to be selected selected.

Step 511, terminal device determines according to selected sequence to be selected and generates selected sequence to be selected When to determine LFSR initial value partial information.

Optionally, after step 511 further include: step 512, terminal device uses the demodulated reference signal pair detected The signal that first resource in the running time-frequency resource that the network equipment is mapped by PBCH symbol is sent is demodulated, to obtain Remaining information sent by the first resource.

Step 513, remaining information that the partial information and step 512 that terminal device obtains step 511 obtain carries out group It closes, to obtain completely indicating information.

Attached drawing 6, attached drawing 7 are the process of the method for other two kinds of synchronous signal transmissions provided by the embodiments of the present application respectively Figure.Attached drawing 6-7 is on the basis of attached drawing 3, emphatically to the transmission of the generating process, demodulated reference signal of demodulated reference signal sequence Process and the receive process of terminal device are described in detail.In attached drawing 6, attached demodulated reference signal sequence shown in Fig. 7 Generating process in, the network equipment select a larger-size LFSR, according to predetermined initial value generate two M sequences.Then Cyclic shift is carried out to two M sequences and generates a longer Gold sequence.It is determined according to partial information and is cut from Gold sequence Take initial position when at least a cross-talk sequence is as demodulated reference signal sequence, then according to the initial position determined from At least one subsequence is intercepted in Gold sequence as demodulated reference signal sequence.

The characteristics of generating process of attached demodulated reference signal sequence shown in fig. 6 is to generate a Gold sequence, from Gold After a cross-talk sequence is intercepted in sequence as demodulated reference signal sequence, demodulated reference signal sequence is divided into two cross-talk sequences Column carry out resource impact to two cross-talk sequences respectively.

The characteristics of generating process of attached demodulated reference signal sequence shown in Fig. 7 be generate a Gold sequence, respectively from Two sections of shorter subsequences are intercepted in the Gold sequence as demodulated reference signal sequence, respectively to two sections of demodulated reference signal sequences Column carry out resource impact.

Attached drawing 6 is the schematic diagram of the method for another synchronous signal transmission provided by the embodiments of the present application.

Step 60, the network equipment generates synchronization signal block and to the determination synchronization signal block in affiliated synchronization signal The instruction information of sequence in pulse set.

61~step 63 of following steps is that the step 31 in attached drawing 3 is described in detail.

Step 61, the network equipment generates two M sequences by LFSR, and the length of the M sequence is I, and I is natural number.

Wherein the size (i.e. most possible series of primitive polynomial) of LFSR is indicated with L, the M sequence that LFSR is generated Length is expressed as I, and the value range of I is L < I < 2^L-1.Optionally, in the present embodiment, L value is 31.Correspondingly, LFSR is raw At M sequence length I value range be 31 < I < 2³¹- 1, the length I value of M sequence is 3344 in the present embodiment.LFSR points Two M sequences are not generated according to two primitive polynomials.

The network equipment presets the initial value of two M sequences, i.e. x₀(0)~x₀(30) and x₁(0)~x₁(30) Value.The initial value of first M sequence isThe initial value of second M sequence isOptionally, c_init=2^m* PCID+1, wherein PCID is cell ID.

Optionally, due to c_init<2³¹, therefore 2^m*PCID<2³¹.According to existing standard, PCID < 2¹⁰, so the value of p is Natural number less than or equal to 21.

Step 62, the network equipment carries out N to described two M sequences_cIt is added after the cyclic shift of position, generates a Gold sequence Column, the length of the Gold sequence are G, N_c, G be natural number, and G=I.

The Gold sequence is expressed as c (n)=(x₀(n+N_c)+x₁(n+N_c))mod2.Optionally, most lifelong in order to guarantee At demodulated reference signal sequence there is preferable pseudo-randomness, the length G long enough of Gold sequence, then N_cValue range can Think 0~5000.In the present embodiment, N_cValue is 3200, then the length of the Gold sequence generated is 3344, i.e. G=I.

Step 63, the network equipment intercepts a cross-talk sequence as the demodulated reference signal sequence from the Gold sequence Column, the initial position when subsequence is intercepted is determined according to the partial information, the length of the subsequence of interception Degree is D, and D is natural number.

The network equipment determines a numerical value k according to the partial information,Wherein SS_idx It is the decimal representation of the partial information.

The network equipment intercepts the subsequence conduct that a segment length is D using k as initial position from the Gold sequence The demodulated reference signal sequence.

Optionally, if the value of D is 144, demodulated reference signal sequence can be expressed as r (n)=1-2*c (n), n =k ..., k+143.

Step 64, the network equipment is sent in the instruction information by the first resource in PBCH except the partial information Except remaining information.Explanation about step 64 please refers to the description in attached drawing 3 for step 32.

Optionally, if in ss block including 2 PBCH symbols, the Secondary resource in PBCH may include difference Part, i.e., the corresponding portion of time frequency resources of the first PBCH symbol and 2 PBCH symbols in described 2 PBCH symbols In the corresponding portion of time frequency resources of the 2nd PBCH symbol.Network equipment method according to shown in step 61~step 63 is solved After adjusting reference signal sequence r (n), 65~step 67 of following steps can also be performed and send demodulated reference signal sequence.That is step 65~step 67 is a kind of embodiment of the step 33 in attached process shown in Fig. 3.

Step 65, the demodulated reference signal sequence r (n) is equally divided into identical first subsequence of length by the network equipment With the second subsequence.I.e. the demodulated reference signal sequence that length is 144 is divided into the first subsequence that length is 72 by the network equipment With the second subsequence.

Step 66, first subsequence and second subsequence are respectively mapped to the Secondary resource by the network equipment Different piece.Such as first subsequence is mapped in the corresponding portion of time frequency resources of the first PBCH symbol, it will be described Second subsequence is mapped in the corresponding portion of time frequency resources of the 2nd PBCH symbol.

Step 67, the network equipment sends first subsequence and described second by the different piece of the Secondary resource Subsequence.Such as first subsequence is sent by the corresponding portion of time frequency resources of the first PBCH symbol, pass through the 2nd PBCH The corresponding portion of time frequency resources of symbol sends second subsequence.

Correspondingly, terminal device executes and the step 61 in attached drawing 6~step 63 phase after detecting demodulated reference signal Corresponding process obtains the partial information carried in demodulated reference signal, such as the content of 2bit or 3bit in SBTI.Terminal Equipment further uses demodulated reference signal and demodulates to the information transmitted in the first resource of PBCH, obtains from demodulation result Obtain remaining information in the instruction information in addition to the partial information.Terminal device combines obtained partial information and remaining Information, and then complete instruction information is obtained, such as whole 6bit contents in SBTI.

Step 68, terminal device obtains arrangement set to be selected, includes multiple possible to be selected in the arrangement set to be selected Sequence.

Optionally, arrangement set to be selected can be terminal device demodulated reference signal according to shown in step 61~step 63 Create-rule generate, be also possible to what terminal device was got from another equipment.

Two M sequences are generated according to LFSR；

An at least cross-talk sequence is intercepted from the Gold sequence as the demodulated reference signal sequence, the subsequence Initial position when being intercepted is determined according to one of the corresponding value set of partial information indicated in information value.

For example, terminal device is directed to SS when partial information includes the 2bit data in instruction information_idxAll possibility 4 kinds of values, using method shown in step 61~step 63 generate 4 sequences to be selected.

Step 69, terminal device detects the demodulated reference signal that the network equipment is sent.

Step 610, terminal device is selected from the arrangement set to be selected with the demodulated reference signal correlation most A high sequence to be selected.

Step 611, terminal device determines according to selected sequence to be selected and generates selected sequence to be selected When to determine subsequence be intercepted when initial position partial information.

Optionally, after step 611 further include: step 612, terminal device uses the demodulated reference signal pair detected The signal that first resource in the running time-frequency resource that the network equipment is mapped by PBCH symbol is sent is demodulated, to obtain Remaining information sent by the first resource.

Step 613, remaining information that the partial information and step 612 that terminal device obtains step 611 obtain carries out group It closes, to obtain completely indicating information.

Attached drawing 7 is the schematic diagram of the method for another synchronous signal transmission provided by the embodiments of the present application.

Step 70, the network equipment generates synchronization signal block and to the determination synchronization signal block in affiliated synchronization signal The instruction information of sequence in pulse set.

71~step 73 of following steps is that the step 31 in attached drawing 3 is described in detail.

Step 71, the network equipment generates two M sequences by LFSR, and the length of the M sequence is I, and I is natural number.

Step 72, the network equipment carries out N to described two M sequences_cIt is added after the cyclic shift of position, generates a Gold sequence Column, the length of the Gold sequence are G, N_c, G be natural number, and G=I.

Step 71 in attached drawing 7 is similar with the step 61 in attached drawing 6, the step 72 in attached drawing 7 and the step 62 in attached drawing 6 It is similar, it can be not repeated herein with reference to the detailed description of correlation step in attached drawing 6.

Step 73, the network equipment intercepts two cross-talk sequences as the demodulated reference signal sequence from the Gold sequence Column, the initial position when subsequence is intercepted is determined according to the partial information, the length of the subsequence of interception Degree is D, and D is natural number.

The network equipment determines that k is used in two initial positions, two initial positions respectively according to partial information₁And k₂It indicates,k₂=N_c-k₁+ 1, wherein SS_idxIt is the decimal representation of the partial information.

The network equipment is with k₁For initial position, the first subsequence, first subsequence are intercepted from the Gold sequence Length be D, D=I*1/2.Optionally, the length of the first subsequence is 72.

The network equipment is with k₂For initial position, the second subsequence, second son are intercepted from the Gold sequence The length of sequence is also D, and first subsequence and second subsequence are the demodulated reference signal sequence.Optionally, The length of second subsequence is 72.

Optionally, 3344, N I_cFor 3200, G 3344, D 72, first subsequence table is shown as r₁(n)=1-2*c (n), n=k₁,...,k₁+ 71, second subsequence table is shown as r₂(n)=1-2*c (n), n=k₂,...,k₂+71。

Step 74, the network equipment is sent in the instruction information by the first resource in PBCH except the partial information Except remaining information.Explanation about step 74 please refers to the description in attached drawing 3 for step 32.

Optionally, if in ss block including 2 PBCH symbols, the Secondary resource in PBCH may include difference Part, i.e., the corresponding portion of time frequency resources of the first PBCH symbol and 2 PBCH symbols in described 2 PBCH symbols In the corresponding portion of time frequency resources of the 2nd PBCH symbol.Network equipment method according to shown in step 71~step 73 is solved Adjust reference signal sequence r₁(n) and r₂(n) after, 75~step 76 of following steps can also be performed and send demodulated reference signal sequence. I.e. step 75~step 76 be attached process shown in Fig. 3 in step 33 a kind of embodiment.

Step 75, the network equipment is by the first subsequence r₁(n) and the second subsequence r₂(n) it is respectively mapped to second money The different piece in source.Such as first subsequence is mapped in the corresponding portion of time frequency resources of the first PBCH symbol, by institute The second subsequence is stated to be mapped in the corresponding portion of time frequency resources of the 2nd PBCH symbol.

Step 76, the network equipment sends the first subsequence r by the different piece of the Secondary resource₁(n) and institute State the second subsequence r₂(n).Such as first subsequence is sent by the corresponding portion of time frequency resources of the first PBCH symbol, lead to It crosses the corresponding portion of time frequency resources of the 2nd PBCH symbol and sends second subsequence.

In the generation method of demodulated reference signal sequence provided by the embodiments of the present application, the network equipment is according to a size Biggish LFSR generates a longer Gold sequence.Two cross-talk sequence demodulation references letter is being intercepted from longer Gold sequence When number sequence, the initial position for intercepting every cross-talk sequence is determined according to the partial information in instruction information, so that cutting The demodulated reference signal sequence taken is unique corresponding with the partial information.In this way by partial information with implicit Mode carries in demodulated reference signal sequence, rather than instruction information is all sent by PBCH in manner shown, from And reduce the data volume transmitted in PBCH, save the running time-frequency resource of PBCH.

Correspondingly, terminal device executes and the step 71 in attached drawing 7~step 73 phase after detecting demodulated reference signal Corresponding process obtains the partial information carried in demodulated reference signal, such as the content of 2bit or 3bit in SBTI.Terminal Equipment further uses demodulated reference signal and demodulates to the information transmitted in the first resource of PBCH, obtains from demodulation result Obtain remaining information in the instruction information in addition to the partial information.Terminal device combines obtained partial information and remaining Information, and then complete instruction information is obtained, such as whole 6bit contents in SBTI.

Step 77, terminal device obtains arrangement set to be selected, includes multiple sequences to be selected in the arrangement set to be selected.

Optionally, arrangement set to be selected can be terminal device demodulated reference signal according to shown in step 71~step 73 Create-rule generate, be also possible to what terminal device was got from another equipment.

Two M sequences are generated according to LFSR；

For example, terminal device is directed to SS when partial information includes the 2bit data in instruction information_idxAll possibility 4 kinds of values, using method shown in step 71~step 73 generate 4 sequences to be selected.

Step 78, terminal device detects the demodulated reference signal that the network equipment is sent.

Step 79, terminal device is selected and the demodulated reference signal correlation highest from the arrangement set to be selected A sequence to be selected.

Step 710, terminal device determines according to selected sequence to be selected and generates selected sequence to be selected When to determine subsequence be intercepted when initial position partial information.

Optionally, after step 710, further includes:

Step 711, terminal device is reflected the network equipment by PBCH symbol using the demodulated reference signal detected The signal that first resource in the running time-frequency resource penetrated is sent is demodulated, to obtain remaining sent by the first resource Information.

Step 712, remaining information that the partial information and step 711 that terminal device obtains step 710 obtain carries out group It closes, to obtain completely indicating information.

Attached drawing 8, attached drawing 9 and attached drawing 10 are the method for in addition several synchronous signal transmissions provided by the embodiments of the present application respectively Flow chart.Attached drawing 8, attached drawing 9 and attached drawing 10 on the basis of attached drawing 3, emphatically to the generating process of demodulated reference signal sequence, The transmission process of demodulated reference signal and the receive process of terminal device are described in detail.In 8~attached drawing of attached drawing, 10 institute In the generating process for the demodulated reference signal sequence shown, the network equipment selects a LFSR, is generated at least according to predetermined initial value (output sequence can be the M sequence that LFSR is directly generated to one group of output sequence, be also possible to the M sequence directly generated based on LFSR Another sequence that column circulation obtains after supplying), addition obtains a Gold after then carrying out cyclic shift to every group of output sequence Sequence, to obtain at least one Gold sequence, wherein the digit of cyclic shift is according to the part letter in the instruction information Breath determination.

The characteristics of generating process of attached demodulated reference signal sequence shown in Fig. 8 is, the network equipment select a size compared with Big LFSR generates one group of M sequence according to predetermined initial value, and it is longer then to carry out cyclic shift generation one to M sequence Gold sequence, to obtain a Gold sequence, wherein the digit of cyclic shift is according to the part letter in the instruction information Breath determination.The network equipment further intercepts a cross-talk sequence as demodulated reference signal sequence from Gold sequence.

In attached drawing 9~attached demodulated reference signal sequence shown in Fig. 10 generating process, the network equipment selects a ruler Very little lesser LFSR generates at least one set of M sequence according to predetermined initial value.Each M sequence is carried out to obtain one after circulation is supplied A output sequence.Then it is added after carrying out cyclic shift to every group of output sequence, generates a shorter Gold sequence, thus To at least one Gold sequence, wherein the digit of cyclic shift is determined according to the partial information in the instruction information.Root A demodulated reference signal sequence identical with Gold sequence length is generated according to each Gold sequence is corresponding.

The difference of the generating process of attached drawing 9 and attached demodulated reference signal sequence shown in Fig. 10 is the Gold sequence generated Number and length difference.Attached method LFSR shown in Fig. 9 generates one group of output sequence, and then generates a Gold sequence, according to After the corresponding generation demodulated reference signal sequence of Gold sequence, demodulated reference signal sequence is divided into the identical two cross-talks sequence of length Column carry out resource impact to two cross-talk sequences respectively.Attached method LFSR shown in Fig. 10 generates two groups of output sequences, and then generates Two Gold sequences generate a demodulated reference signal sequence identical with Gold sequence length according to each Gold sequence respectively Two sections of demodulated reference signal sequences are carried out resource impact respectively by column.

Attached drawing 8 is the schematic diagram of the method for another synchronous signal transmission provided by the embodiments of the present application.

Step 80, the network equipment generates synchronization signal block and to the determination synchronization signal block in affiliated synchronization signal The instruction information of sequence in pulse set.

81~step 83 of following steps is that the step 31 in attached drawing 3 is described in detail.

Step 81, the network equipment generates two M sequences by LFSR, and the length of the M sequence is I, and I is natural number.

The network equipment presets the initial value of two M sequences, i.e. x₀(0)~x₀(30) and x₁(0)~x₁(30) Value.The initial value of first M sequence isThe initial value of second M sequence isWherein c_init=2^m* PCID+1, wherein PCID is cell ID.

Optionally, m is less than the natural number equal to 21.

Step 82, the network equipment determines the digit N of cyclic shift according to the partial information in instruction information_c。

N in the present embodiment_c=3200* (SS_idx+ 1), wherein SS_idxIt is the decimal representation of the partial information.

Step 83, the network equipment carries out N to described two M sequences_cIt is added after the cyclic shift of position, generates a Gold sequence Column, the length of the Gold sequence are G, N_c, G be natural number, and G=I.

Correspondingly, Gold sequence is expressed as c (n)=(x₀(n+N_c)+x₁(n+N_c))mod2。

Step 84, the network equipment intercepts a cross-talk sequence as the demodulated reference signal sequence from the Gold sequence The length of column, the subsequence of interception is D, and D is natural number.

Initial position when the present embodiment is to interception subsequence is not limited.Optionally, if the value of D is 144, Demodulated reference signal sequence can be expressed as r (n)=1-2*c (n), n=1 ..., 144.

Step 85, the network equipment is sent in the instruction information by the first resource in PBCH except the partial information Except remaining information.Explanation about step 85 please refers to the description in attached drawing 3 for step 32.

After generating demodulated reference signal r (n) using attached method shown in Fig. 8, the network equipment sends demodulated reference signal The mode of sequence is similar with the demodulated reference signal that attached method shown in fig. 6 generates is sent, and is only briefly described herein.

Step 86, the demodulated reference signal sequence r (n) is equally divided into the first subsequence and the second sub- sequence by the network equipment Column.Optionally, the demodulated reference signal sequence that length is 144 is divided into the first subsequence and second that length is 72 by the network equipment Subsequence.

Step 87, first subsequence and second subsequence are respectively mapped to the Secondary resource by the network equipment Different piece.Such as first subsequence is mapped in the corresponding portion of time frequency resources of the first PBCH symbol, it will be described Second subsequence is mapped in the corresponding portion of time frequency resources of the 2nd PBCH symbol.

Step 88, the network equipment sends first subsequence and described second by the different piece of the Secondary resource Subsequence.Such as first subsequence is sent by the corresponding portion of time frequency resources of the first PBCH symbol, pass through the 2nd PBCH The corresponding portion of time frequency resources of symbol sends second subsequence.

In the generation method of demodulated reference signal sequence provided by the embodiments of the present application, the network equipment utilizes a size Biggish LFSR generates M sequence, determines that carrying out cyclic shift from M sequence generates Gold sequence according to the partial information in instruction information Cyclic shift value when column, so that the Gold sequence generated according to M sequence and the demodulation intercepted from Gold sequence are joined It is unique corresponding that signal sequence, which is examined, with the partial information.Partial information is carried in implicit mode in this way In demodulated reference signal sequence, rather than instruction information is all sent by PBCH in manner shown, to reduce The data volume transmitted in PBCH has saved the running time-frequency resource of PBCH.

Correspondingly, terminal device executes and the step 81 in attached drawing 8~step 84 phase after detecting demodulated reference signal Corresponding process obtains the partial information carried in demodulated reference signal, such as the content of 2bit or 3bit in SBTI.Terminal Equipment further uses demodulated reference signal and demodulates to the information transmitted in the first resource of PBCH, obtains from demodulation result Obtain remaining information in the instruction information in addition to the partial information.Terminal device combines obtained partial information and remaining Information, and then complete instruction information is obtained, such as whole 6bit contents in SBTI.

Step 89, terminal device obtains arrangement set to be selected, includes multiple possible to be selected in the arrangement set to be selected Sequence.

At least one set of output sequence is generated according to LFSR, is wrapped in every group of output sequence in at least one set output sequence Include two output sequences；

The output sequence described in every group is added after carrying out cyclic shift respectively, generates a Gold sequence, to obtain extremely A few Gold sequence, the digit of the cyclic shift are according in the corresponding value set of partial information in instruction information What a kind of value determined；

According to each of at least one Gold sequence Gold sequence, a demodulation reference is generated respectively Signal sequence.

For example, terminal device is directed to SS when partial information includes the 2bit data in instruction information_idxAll possibility 4 kinds of values, using method shown in step 81~step 84 generate 4 sequences to be selected.

Step 810, terminal device detects the demodulated reference signal that the network equipment is sent.

Step 811, terminal device is selected from the arrangement set to be selected with the demodulated reference signal correlation most A high sequence to be selected.

Step 812, terminal device determines according to selected sequence to be selected and generates selected sequence to be selected When to determine cyclic shift digit partial information.

Optionally, after step 812, further includes:

Step 813, terminal device is reflected the network equipment by PBCH symbol using the demodulated reference signal detected The signal that first resource in the running time-frequency resource penetrated is sent is demodulated, to obtain remaining sent by the first resource Information.

Step 814, remaining information that the partial information and step 813 that terminal device obtains step 812 obtain carries out group It closes, to obtain completely indicating information.

Attached drawing 9 is the schematic diagram of the method for another synchronous signal transmission provided by the embodiments of the present application.

Step 90, the network equipment generates synchronization signal block and to the determination synchronization signal block in affiliated synchronization signal The instruction information of sequence in pulse set.

91~step 93 of following steps is that the step 31 in attached drawing 3 is described in detail.

Step 91, the network equipment generates one group of output sequence by LFSR, includes two output sequences in this group of output sequence The length of column, the output sequence is I, and I is natural number.

The size of LFSR is 7.Correspondingly, the M sequence length that LFSR is directly generated is X, and the value range of X is 7 < X < 2⁷- 1.M sequence is supplied by circulation can produce longer sequence.The length I value of output sequence is preassigned in the present embodiment Be 144, then the longest M sequence length that LFSR is directly generated be 127, through recycle supply 17 after obtain length be 144 it is defeated Sequence out.

LFSR generates two output sequences according to two primitive polynomials respectively.

First primitive polynomial is x⁷+x³Corresponding the first output sequence generated of+1, LFSR is expressed as x₀(n+7)=(x₀ (n+3)+x₀(n))mod2.Initial value when LFSR generates first output sequence is x₀(1)~x₀(6)=0, x₀(7)=1, N=I-7.

Second primitive polynomial is x⁷+x+1.Corresponding the second output sequence generated of LFSR is expressed as x₁(n+7)=(x₁ (n+1)+x₁(n))mod2.Initial value when LFSR generates second output sequence is x₁(1)~x₁(6)=0, x₁(7)=1, N=I-7.

Step 92, the network equipment determines the digit of cyclic shift according to the partial information in instruction information.

There are many modes for the network equipment according to the partial information in instruction information, determines the digit of cyclic shift, such as can To determine the digit of cyclic shift according to scheduled formula.Further, since partial information is the data of 2bit or 3bit, value It is relatively limited, the mapping relations of all possible value of partial information and the digit of cyclic shift can also be preset, The position of cyclic shift can be determined according to the value of partial information when the digit of cyclic shift by the way of tabling look-up by determining Number.As long as enabling and being obtained according to partial information in short, establishing the functional relation of the digit of partial information and cyclic shift The digit of corresponding cyclic shift.

Optionally, for the ease of intuitivism apprehension, the present embodiment in exemplary fashion, gives several according to instruction letter herein Partial information in breath determines the concrete mode of the digit of cyclic shift.

Example 1: according to scheduled using partial information as the formula of variable, the digit of cyclic shift is determined.

The digit of cyclic shift is expressed as (i₁,i₂), whereini₂= (SS_idxMod 2)+(NID1mod 112), PCID=3*NID1+NID2, wherein i₁It is exported when to generate Gold sequence to first Sequence carries out the digit of cyclic shift, i₂The digit of cyclic shift is carried out when to generate Gold sequence to the second output sequence, PCID is cell ID, SS_idxIt is the decimal representation of the partial information, the value range of NID1 is 0,1 ... 335, NID2 Value range be 0,1,2.

Example 2: according to scheduled mapping relations, the digit of cyclic shift is determined.In other words, the digit of cyclic shift with Partial information has scheduled mapping relations.

It, can be to two output sequences point during carrying out cyclic shift acquisition Gold sequence to two output sequences The identical digit of other cyclic shift, can also distinguish the different digit of cyclic shift.It can also only any one be defeated to therein Sequence carries out cyclic shift out, without carrying out cyclic shift to another output sequence.

It is 2bit, SS in partial information_idxBe the partial information decimal representation in the case where, if only to first Output sequence carries out cyclic shift, then partial information, SS_idxWith i₁Corresponding relationship it is as shown in table 1, wherein i₁To generate Gold sequence The digit of cyclic shift is carried out when column to the first output sequence.It is obvious also possible to cyclic shift only is carried out to the second output sequence, With only to the first output sequence carry out cyclic shift it is similar, be no longer described in detail herein.

Table 1

The value of partial information	SS_idx	i₁
			00	0	0
01	1	23
			10	2	46
11	3	69

It is 2bit, SS in partial information_idxBe the partial information decimal representation in the case where, if defeated to two Sequence carries out cyclic shift out, then partial information, SS_idxWith i₁, i₂Corresponding relationship it is as shown in table 2, wherein i₁To generate Gold The digit of cyclic shift, i are carried out when sequence to the first output sequence₂The second output sequence is followed when Gold sequence to generate The digit of ring displacement.

Table 2

The value of partial information	SS_idx	i₁	i₂
				00	0	0	0
01	1	23	0
				10	2	0	23
11	3	23	23

It is 3bit, SS in partial information_idxBe the partial information decimal representation in the case where, if only to first Output sequence carries out cyclic shift, then partial information, SS_idxWith i₁Corresponding relationship it is as shown in table 3, wherein i₁To generate Gold sequence The digit of cyclic shift is carried out when column to the first output sequence.It is obvious also possible to cyclic shift only is carried out to the second output sequence, With only to the first output sequence carry out cyclic shift it is similar, be no longer described in detail herein.

Table 3

The value of partial information	SS_idx	i₁
			000	0	0
001	1	23
			010	2	46
011	3	69
			100	4	92
101	5	115
			110	6	138
111	7	161

It is 3bit, SS in partial information_idxBe the partial information decimal representation in the case where, if defeated to two Sequence carries out cyclic shift out, then partial information, SS_idxWith i₁, i₂Corresponding relationship it is as shown in table 4, wherein i₁To generate Gold The digit of cyclic shift, i are carried out when sequence to the first output sequence₂The second output sequence is followed when Gold sequence to generate The digit of ring displacement.

Table 4

The value of partial information	SS_idx	i₁	i₂
				000	0	0	0
001	1	23	0
				010	2	0	23
011	3	23	23
				100	4	0	46
101	5	23	46
				110	6	0	69
111	7	23	69

Step 93, the digit for the cyclic shift that the network equipment is determined according to step 92, to above-mentioned two output sequence into It is added after row cyclic shift, generates a Gold sequence, the length of the Gold sequence is G, and G is natural number, and G=I.

Gold sequence is expressed as c (n)=(x₀(n+i₁)+x₁(n+i₂))mod2。

Optionally, in the present embodiment, the value of I is 144.

Step 94, the Gold sequence that the network equipment is obtained according to step 93 generates a demodulated reference signal sequence, The length of the demodulated reference signal sequence is G.

There are many kinds of the modes that demodulated reference signal sequence is uniquely generated according to Gold sequence, the present embodiment to this not into Row limitation.For example, 144 demodulated reference signal sequences can be generated by 144 Gold sequences with the following methods.

Demodulated reference signal sequence is expressed as r (n)=1-2*c (n).

Step 95, the network equipment is sent in the instruction information by the first resource in PBCH except the partial information Except remaining information.Explanation about step 95 please refers to the description in attached drawing 3 for step 32.

Optionally, if in ss block including 2 PBCH symbols, the Secondary resource in PBCH may include difference Part, i.e., the corresponding portion of time frequency resources of the first PBCH symbol and 2 PBCH symbols in described 2 PBCH symbols In the corresponding portion of time frequency resources of the 2nd PBCH symbol.Network equipment method according to shown in step 91~step 94 is solved After adjusting reference signal sequence r (n), 96~step 98 of following steps can also be performed and send demodulated reference signal sequence.That is step 96~step 98 is a kind of embodiment of the step 33 in attached process shown in Fig. 3.

Step 96, the demodulated reference signal sequence average is divided into identical first subsequence of length and by the network equipment Two subsequences.I.e. the demodulated reference signal sequence that length is 144 is divided into the first subsequence and that length is 72 by the network equipment Two subsequences.

Step 97, first subsequence and second subsequence are respectively mapped to the Secondary resource by the network equipment Different piece.Such as first subsequence is mapped in the corresponding portion of time frequency resources of the first PBCH symbol, it will be described Second subsequence is mapped in the corresponding portion of time frequency resources of the 2nd PBCH symbol.

Step 98, the network equipment sends first subsequence and described second by the different piece of the Secondary resource Subsequence.Such as first subsequence is sent by the corresponding portion of time frequency resources of the first PBCH symbol, pass through the 2nd PBCH The corresponding portion of time frequency resources of symbol sends second subsequence.

In the generation method of demodulated reference signal sequence provided by the embodiments of the present application, the network equipment utilizes a size Lesser LFSR generates output sequence, is determined according to the partial information in instruction information and carries out cyclic shift generation to output sequence Cyclic shift value when Gold sequence, so that being cut according to the Gold sequence of output sequence generation and from Gold sequence The demodulated reference signal sequence taken is unique corresponding with the partial information.In this way by partial information with implicit Mode carries in demodulated reference signal sequence, rather than instruction information is all sent by PBCH in manner shown, from And reduce the data volume transmitted in PBCH, save the running time-frequency resource of PBCH.

Correspondingly, terminal device executes and the step 91 in attached drawing 9~step 94 phase after detecting demodulated reference signal Corresponding process obtains the partial information carried in demodulated reference signal, such as the content of 2bit or 3bit in SBTI.Terminal Equipment further uses demodulated reference signal and demodulates to the information transmitted in the first resource of PBCH, obtains from demodulation result Obtain remaining information in the instruction information in addition to the partial information.Terminal device combines obtained partial information and remaining Information, and then complete instruction information is obtained, such as whole 6bit contents in SBTI.Step 89 in detailed process and attached drawing 8 ~step 814 is substantially similar, is not repeated herein.

Attached drawing 10 is the schematic diagram of the method for another synchronous signal transmission provided by the embodiments of the present application.

Step 1000, the network equipment generates synchronization signal block and to the determination synchronization signal block in affiliated synchronous letter The instruction information of the sequence for punching concentration of feeling the pulse.

Step 1001, the network equipment generates two groups of output sequences by LFSR, includes two outputs in every group of output sequence The length of sequence, the output sequence is I, and I is natural number.

The size of LFSR is 6.Correspondingly, the length for the M sequence that LFSR is generated is X, and the value range of X is 6 < X < 2⁶-1。M Sequence is supplied by circulation can produce longer M sequence.The length I value of M sequence is 72 in the present embodiment.

Firstly, the network equipment generates first group of output sequence according to two primitive polynomials:

First primitive polynomial is x⁶+x⁵First output sequence in the corresponding first group of output sequence generated of+1, LFSR It is expressed as x₀(n+6)=(x₀(n+5)+x₀(n)) initial value when mod2, the LFSR generate first output sequence is x₀ (1)~x₀(5)=0, x₀(6)=1, n=I-6.

Second primitive polynomial is x⁶Second output sequence table in the corresponding first group of output sequence generated of+x+1, LFSR It is shown as x₀(n+6)=(x₀(n+1)+x₀(n)) initial value when mod2, the LFSR generate first output sequence is x₀(1) ~x₀(5)=0, x₀(6)=1, n=I-6.

Meanwhile the network equipment generates second group of output sequence according to other two primitive polynomial:

Third primitive polynomial is x⁶The first output sequence in the corresponding second group of output sequence generated of+x+1, LFSR It is expressed as x_0-(n+6)=(x_0-(n+1)+x_0-(n)) mod2, the LFSR are generated in second group of output sequence first defeated Initial value when sequence is x out_0-(1)~x_0-(5)=0, x_0-(6)=1, n=I-6.

Third primitive polynomial is x⁶+x⁵+x³+x²Second in the corresponding second group of output sequence generated of+1, LFSR is defeated Sequence is expressed as x out₀(n+6)=(x_0-(n+5)+x_0-(n+3)+x₀-(n+2)+x₀(n)) described in mod2, the LFSR are generated Initial value when the second output sequence in second group of output sequence is x_0-(1)~x_0-(5)=0, x_0-(6)=1, n=I-6.

Step 1002, the network equipment determines the digit of cyclic shift according to the partial information in instruction information.

It is similar with attached embodiment shown in Fig. 9, the network equipment there are many mode according to instruction information in partial information, Determine the digit of cyclic shift when every group of M sequence generates Gold sequence.

The digit of the cyclic shift is expressed as (i₁,i₂) and (i₁-,i₂), whereini_2-=(SS_idx2Mod 2)+(NID1mod 112), PCID=3*NID1+ NID2,

Wherein i₁To in first group of output sequence when Gold sequence corresponding for generation first group of output sequence The first output sequence carry out cyclic shift digit, i₂When to generate the corresponding Gold sequence of first group of output sequence pair The second output sequence in first group of output sequence carries out the digit of cyclic shift.

Whereini_2-=(SS_idx2Mod 2)+(NID1mod 112),

Wherein i_1-To in second group of output sequence when Gold sequence corresponding for generation second group of output sequence The first output sequence carry out cyclic shift digit, i_2-When to generate the corresponding Gold sequence of second group of output sequence pair The second output sequence in second group of output sequence carries out the digit of cyclic shift,

PCID is cell ID, SS_idx=SS_idx1+SS_idx2, SS_idxIt is the decimal representation of the partial information, NID1's Value range is 0,1 ..., and 335, NID2 value range is 0,1,2.

The digit of the cyclic shift is expressed as (i₁,i₂) and (i_1-,i_2-), wherein i₁To generate first group of output sequence The digit of cyclic shift, i are carried out when arranging corresponding Gold sequence to the first output sequence in first group of output sequence₂For It generates when first group of output sequence corresponds to Gold sequence and the second output sequence in first group of output sequence is carried out The digit of cyclic shift,

i_1-To the in second group of output sequence when to generate the corresponding Gold sequence of second group of output sequence One output sequence carries out the digit of cyclic shift, i_2-To described when Gold sequence corresponding for generation second group of output sequence The second output sequence in second group of output sequence carries out the digit of cyclic shift.

i₁And/or i₂Value respectively with SS_idx1With mapping relations, i₁And/or i₂With SS_idx1Mapping relations with it is above-mentioned 1~table of table 4 in embodiment is similar, only by the SS in 1~table of table 4_idxReplace with SS_idx1.Wherein, SS_idx=SS_idx1+ SS_idx2, SS_idxIt is the decimal representation of the partial information.

i_1-And/or i_2-Value respectively with SS_idx2With mapping relations, i_1-And/or i_2-With SS_idx2Mapping relations with 1~table of table 4 in above-described embodiment is similar, only by the SS in 1~table of table 4_idxReplace with SS_idx2。

Step 1003, the network equipment is for every group of output sequence, according to the digit for the cyclic shift that step 1002 is determined Value is added after carrying out cyclic shift to two output sequences for including in this group of output sequence, generates this group of output sequence Corresponding Gold sequence, to obtain two Gold sequences.The length of the Gold sequence is G, and G is natural number, and G=I.

The corresponding Gold sequence of first group of output sequence is expressed as c₁(n)=(x₀(n+i₁)+x₁(n+i₂)) mod2,

The corresponding Gold sequence of second group of output sequence is expressed as c₂(n)=(x_0-(n+i_1-)+x_1-(n+i_2-)) mod2。

Step 1004, each Gold sequence that the network equipment is obtained according to step 1003 generates a demodulated reference signal Sequence, to obtain two demodulated reference signal sequences, the length of the demodulated reference signal sequence is G.

Step 1005, the network equipment is sent by the first resource in PBCH and removes the partial information in the instruction information Except remaining information.Explanation about step 1005 please refers to the description in attached drawing 3 for step 32.

Optionally, if in ss block including 2 PBCH symbols, the Secondary resource in PBCH may include difference Part, i.e., the corresponding portion of time frequency resources of the first PBCH symbol and 2 PBCH symbols in described 2 PBCH symbols In the corresponding portion of time frequency resources of the 2nd PBCH symbol.Network equipment method according to shown in step 1001~step 1004 obtains Obtain demodulated reference signal sequence r₁(n) and r₂(n) after, 1006~step 1007 of following steps can also be performed and send demodulation reference Signal sequence.I.e. step 1006~step 1007 be attached process shown in Fig. 3 in step 33 a kind of embodiment.

Step 1006, the demodulation reference that the network equipment will be generated according to the corresponding Gold sequence of first group of output sequence Signal sequence r₁(n) and according to the corresponding Gold sequence of second group of output sequence the demodulated reference signal sequence r generated₂ (n) it is respectively mapped to the different piece of the Secondary resource.

Step 1007, the network equipment is sent described according to first group of output by the different piece of the Secondary resource Demodulated reference signal sequence that the corresponding Gold sequence of sequence generates and described corresponding according to second group of output sequence The demodulated reference signal sequence that Gold sequence generates.

In the generation method of demodulated reference signal sequence provided by the embodiments of the present application, the network equipment utilizes a size Lesser LFSR generates two groups of output sequences, is recycled according to the partial information determination in instruction information to every group of output sequence Displacement generates cyclic shift value when Gold sequence, so that according to the Gold sequence of M sequence generation and according to Gold sequence The demodulated reference signal sequence of column-generation is unique corresponding with the partial information.In this way by partial information with hidden The mode of formula carries in demodulated reference signal sequence, rather than instruction information is all sent out by PBCH in manner shown It send, to reduce the data volume transmitted in PBCH, has saved the running time-frequency resource of PBCH.

Correspondingly, terminal device executes and step 1001~step in attached drawing 10 after detecting demodulated reference signal 1004 corresponding processes obtain the partial information that carries in demodulated reference signal, such as 2bit's in SBTI or 3bit is interior Hold.Terminal device further uses demodulated reference signal and demodulates to the information transmitted in the first resource of PBCH, from demodulation As a result remaining information in the instruction information in addition to the partial information is obtained in.Terminal device combines obtained part letter Breath and remaining information, and then complete instruction information is obtained, such as whole 6bit contents in SBTI.In detailed process and attached drawing 8 Step 89~step 814 it is substantially similar, be not repeated herein.

The embodiment of the present application also provides a kind of network equipments.Illustratively, which can be base station.Attached drawing 11 It is the structural schematic diagram of the network equipment, which realizes the net in the above various embodiments as the network equipment in attached drawing 1 The function of network equipment.As shown in figure 11, which includes transceiver 1110 and processor 1120.

Optionally, transceiver 1110 is properly termed as remote radio unit (RRU) (remote radio unit, RRU), transmitting-receiving list Member, transceiver or transmission circuit etc..Transceiver 1110 may include at least one antenna 1111 and radio frequency unit 1112, Transceiver 1110 can be used for the transmitting-receiving of radiofrequency signal and the conversion of radiofrequency signal and baseband signal.

Optionally, the network equipment includes one or more Base Band Unit (baseband unit, referred to as: BBU) 1130.It should Base Band Unit 1130 includes processor 1120.Base Band Unit 1130 is mainly used for carrying out Base-Band Processing, and such as channel coding is multiplexed, Modulation, spread spectrum etc., and base station is controlled.Transceiver 1110 and the Base Band Unit 1130, which can be, is physically located at one It rises, setting, i.e. distributed base station can also be physically separated.

In one example, Base Band Unit 1130 can be made of one or more veneers, and multiple veneers can prop up jointly The wireless access network for holding single access standard can also support the wireless access network of different access standards respectively.Optionally, base band Unit 1130 can also include memory 1140, to store necessary instruction and data.Processor 1120 can be used for controlling The network equipment executes the corresponding operating in aforementioned approaches method embodiment.

Corresponding 5 described embodiment of earlier drawings, the processor 1120, for generate synchronization signal block and to It determines the instruction information for the sequence that the synchronization signal block is concentrated in affiliated synchronous signal impulse, includes in the synchronization signal block Physical Broadcast Channel PBCH symbol；Two M sequences, the initial value of the LFSR are generated according to linear feedback shift register LFSR It is to be determined according to the partial information in the instruction information；Cyclic shift is carried out to described two M sequences, generates a Gold Sequence；A subsequence is intercepted from the Gold sequence as demodulated reference signal sequence, the demodulated reference signal sequence The signal transmitted in running time-frequency resource for mapping the PBCH symbol demodulates, the time-frequency money of the PBCH symbol mapping It include first resource and Secondary resource in source, the first resource is in the running time-frequency resource of the PBCH symbol mapping to transmit The running time-frequency resource of Master Information Block MIB, the Secondary resource are in the running time-frequency resource of the PBCH symbol mapping except first money Running time-frequency resource except source；

The transceiver 1110, for being sent in the instruction information by the first resource except the partial information Except remaining information, and pass through the Secondary resource and send the demodulated reference signal sequence.

Optionally, processor 1120 generates the detailed process of demodulated reference signal sequence and transceiver 1110 sends solution The detailed process for adjusting reference signal sequence, please refers to previous methods embodiment, especially attached drawing 3, attached drawing 4, attached side shown in fig. 5 Associated description in method embodiment, is not repeated herein.

Corresponding earlier drawings 6,7 described embodiment of attached drawing, the processor 1120, for generate synchronization signal block with And the instruction information for the sequence concentrated to the determination synchronization signal block in affiliated synchronous signal impulse, the synchronization signal block In include Physical Broadcast Channel PBCH symbol；Two M sequences are generated according to linear feedback shift register LFSR；To described two M sequence carries out cyclic shift, generates a Gold sequence；It is intercepted from the Gold sequence described in the conduct of an at least cross-talk sequence Demodulated reference signal sequence, the initial position when subsequence is intercepted are determined according to the partial information, the solution The signal transmitted in the running time-frequency resource for adjusting reference signal sequence to be used to map the PBCH symbol demodulates, the PBCH symbol It include first resource and Secondary resource in the running time-frequency resource of number mapping, the first resource is the time-frequency of PBCH symbol mapping To transmit the running time-frequency resource of Master Information Block MIB in resource, the Secondary resource is the running time-frequency resource of the PBCH symbol mapping In running time-frequency resource in addition to the first resource；

The transceiver 1110, for being sent in the instruction information by the first resource except the partial information Except remaining information；The demodulated reference signal sequence is sent by the Secondary resource.

Optionally, processor 1120 generates the detailed process of demodulated reference signal sequence and transceiver 1110 sends solution The detailed process for adjusting reference signal sequence, please refers to previous methods embodiment, especially attached drawing 3, attached drawing 4, attached drawing 6 and attached drawing 7 Shown in associated description in embodiment of the method, be not repeated herein.

Corresponding 10 described embodiment of earlier drawings 8- attached drawing, the processor 1120, for generating synchronization signal block And the instruction information for the sequence concentrated to the determination synchronization signal block in affiliated synchronous signal impulse, the synchronization signal It include Physical Broadcast Channel PBCH symbol in block；At least one set of output sequence is generated according to linear feedback shift register LFSR, It include two output sequences in every group of output sequence in at least one set output sequence；The output sequence described in every group carries out It is added after cyclic shift, generates a corresponding Gold sequence, so that at least one Gold sequence is obtained, the cyclic shift Digit is determined according to the partial information；According to each of at least one Gold sequence Gold sequence, divide Not Sheng Cheng a demodulated reference signal sequence, the demodulated reference signal sequence be used for the PBCH symbol map when The signal transmitted in frequency resource is demodulated, and includes first resource and the second money in the running time-frequency resource of the PBCH symbol mapping Source, the first resource are in the running time-frequency resource of the PBCH symbol mapping to the running time-frequency resource for transmitting Master Information Block MIB, institute State the running time-frequency resource in the running time-frequency resource that Secondary resource is the PBCH symbol mapping in addition to the first resource；

Optionally, processor 1120 generates the detailed process of demodulated reference signal sequence and transceiver 1110 sends solution The detailed process for adjusting reference signal sequence, please refers to previous methods embodiment, especially attached drawing 3, attached drawing 4, attached drawing 8- attached drawing 10 Shown in associated description in embodiment of the method, be not repeated herein.

The embodiment of the present application also provides a kind of network equipments, and illustratively, which is base station.Below with reference to attached Figure 12 is described the structure and function of the network equipment by taking base station as an example.Attached drawing 12 is the structural schematic diagram of the network equipment, should The network equipment has the function of the network equipment in embodiment of the method as the network equipment in attached drawing 1, attached drawing 2.Such as Figure 12 institute Show, which includes Transmit-Receive Unit 121 and processing unit 122.The Transmit-Receive Unit 121 and the processing unit 122 can be Software realization is also possible to hardware realization.In the case where hardware realization, which can be the transceiver in Figure 11 1110, which can be the processor 1120 in Figure 11.

The embodiment of the present application also provides a kind of terminal devices.It should be understood that the terminal device can be above-mentioned each method reality The UE in example is applied, can have any function of the UE in each method embodiment.Attached drawing 13 is the structural schematic diagram of terminal device, The terminal device realizes the function of terminal device shown in the above various embodiments as the terminal device in attached drawing 1.Such as Figure 13 institute Show, which includes processor 131 and transceiver 132.

Optionally, transceiver 132 may include control circuit and antenna, wherein control circuit can be used for baseband signal with The conversion of radiofrequency signal and processing to radiofrequency signal, antenna can be used for transceiving radio frequency signal.

Optionally, which can also include other main components of terminal device, for example, memory, input and output dress It sets.

Processor 131 can be used for handling communication protocol and communication data, and carry out to entire terminal device Control, execution software program, the data of processing software program, such as supporting terminal device to execute in preceding method embodiment Corresponding operating.Memory 133 is mainly used for storing software program and data.After terminal device booting, processor 131 can be with The software program in memory is read, the instruction of software program, the data of processing software program are explained and execute.

Corresponding 5 described embodiment of earlier drawings, processor 131, for obtaining arrangement set to be selected, the sequence to be selected It include multiple sequences to be selected in column set, the generating process of a sequence to be selected in the multiple sequence to be selected includes: basis LFSR generates two M sequences, and the initial value of the LFSR is according in the corresponding value set of partial information in instruction information A kind of value determine, the sequence concentrated to indicate synchronization signal block in affiliated synchronous signal impulse of instruction information； It is added after carrying out cyclic shift to described two M sequences, generates a Gold sequence；A son is intercepted from the Gold sequence Sequence is as sequence to be selected；

Transceiver 132, the demodulated reference signal sent for detecting the network equipment；

Processor 131 is also used to be selected from the arrangement set to be selected with the demodulated reference signal correlation most A high sequence to be selected；According to selected sequence to be selected, determine when generating selected sequence to be selected to Determine the partial information of the initial value of LFSR.

Optionally, processor 131 obtains the detailed process of arrangement set to be selected and selects and believes with the demodulation reference The detailed process of number highest sequence to be selected of correlation, please refers to previous methods embodiment, especially attached drawing 3, attached drawing 4, Associated description in attached embodiment of the method shown in fig. 5, is not repeated herein.

Corresponding earlier drawings 6-7 described embodiment, processor 131 are described to be selected for obtaining arrangement set to be selected It include multiple sequences to be selected in arrangement set, the generating process of a sequence to be selected in the multiple sequence to be selected includes: root Two M sequences are generated according to LFSR；It is added after carrying out cyclic shift to described two M sequences, generates a Gold sequence；From described Starting of at least cross-talk sequence as the demodulated reference signal sequence, when the subsequence is intercepted is intercepted in Gold sequence Position is determined according to one of the corresponding value set of partial information indicated in information value, and the instruction information is used To indicate sequence that synchronization signal block is concentrated in affiliated synchronous signal impulse；

Processor 131 is also used to select from the arrangement set to be selected and the demodulated reference signal phase The highest sequence to be selected of closing property；According to selected sequence to be selected, determines and generate selected sequence to be selected When to determine subsequence be intercepted when initial position partial information.

Optionally, processor 131 obtains the detailed process of arrangement set to be selected and selects and believes with the demodulation reference The detailed process of number highest sequence to be selected of correlation, please refers to previous methods embodiment, especially attached drawing 3, attached drawing 4, Associated description in embodiment of the method shown in attached drawing 6-7, is not repeated herein.

Corresponding earlier drawings 8-10 described embodiment, processor 131, for obtaining arrangement set to be selected, it is described to Selecting includes multiple sequences to be selected in arrangement set, and the generating process of a sequence to be selected in the multiple sequence to be selected includes: Two M sequences are generated according to LFSR；At least one set of output sequence is generated according to LFSR, it is every in at least one set output sequence It include two output sequences in group output sequence；The output sequence described in every group is added after carrying out cyclic shift respectively, generates one A Gold sequence, to obtain at least one Gold sequence, the digit of the cyclic shift is according to the part in instruction information What one of the corresponding value set of information value determined, the instruction information is to indicate synchronization signal block in affiliated synchronization The sequence that signal pulse is concentrated；According to each of at least one Gold sequence Gold sequence, one is generated respectively The demodulated reference signal sequence

Processor 131 is also used to be selected from the arrangement set to be selected with the demodulated reference signal correlation most A high sequence to be selected；According to selected sequence to be selected, determine when generating selected sequence to be selected to Determine the partial information of the digit of cyclic shift.

Optionally, processor 131 obtains the detailed process of arrangement set to be selected and selects and believes with the demodulation reference The detailed process of number highest sequence to be selected of correlation, please refers to previous methods embodiment, especially attached drawing 3, attached drawing 4, Associated description in embodiment of the method shown in attached drawing 8-10, is not repeated herein.

The embodiment of the present application also provides a kind of terminal devices.It should be understood that the terminal device can be above-mentioned each method reality The terminal device in example is applied, can have any function of the terminal device in each method embodiment.Attached drawing 14 is terminal device Structural schematic diagram, the base station processing unit 141 and Transmit-Receive Unit 142.The processing unit 141 and the Transmit-Receive Unit 142 can be with It is that software realization is also possible to hardware realization.In the case where hardware realization, which can be the processing in Figure 13 Device 131, the Transmit-Receive Unit 142 can be the transceiver 132 in Figure 13.

The embodiment of the present application also provides a kind of communication systems, include the network equipment in the communication system as shown in Fig. 1 And terminal device, the network equipment can be the network equipment shown in attached drawing 11 or attached drawing 12, terminal device can be attached drawing 13 or The network equipment shown in attached drawing 14.

All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method Part explanation.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or It partly generates according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, dedicated meter Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center User's line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or Data center is transmitted.The computer readable storage medium can be any usable medium that computer can access or It is comprising data storage devices such as one or more usable mediums integrated server, data centers.The usable medium can be with It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk Solid State Disk (SSD)) etc..

Obviously, various changes and modifications can be made to the invention without departing from model of the invention by those skilled in the art It encloses.If then the present invention is also intended in this way, these modifications and variations of the application belong within the scope of the claims in the present invention Including these modification and variations.

Claims

1. a kind of method of synchronous signal transmission characterized by comprising

The network equipment generates synchronization signal block and to indicate what the synchronization signal block was concentrated in affiliated synchronous signal impulse The instruction information of sequence, the synchronization signal block include Physical Broadcast Channel PBCH symbol；

The network equipment generates two M sequences according to linear feedback shift register LFSR, and the initial value of the LFSR is root It is determined according to the partial information in the instruction information；

The network equipment intercepts a subsequence as demodulated reference signal sequence, the demodulation ginseng from the Gold sequence The signal transmitted in running time-frequency resource of the signal sequence for mapping the PBCH symbol is examined to demodulate,

The network equipment is sent in Master Information Block MIB and the instruction information by the first resource except the part is believed Remaining information except breath；With

2. the method according to claim 1, wherein

The size of the LFSR is 31, and the LFSR initial value is c_init, Wherein c_init=2^p*PCID+2^q*SS_idx+ 1, wherein PCID is cell ID, SS_idxIt is the decimal representation of the partial information, P is the natural number less than or equal to 20, and q is the natural number less than or equal to 27,

First M sequence in described two M sequences is expressed as x₀(n+31)=(x₀(n+3)+x₀(n)) mod2, described first M sequence is the LFSR according to multinomial x³¹+x³+ 1 is calculated, n=I-31；

Second M sequence in described two M sequences is expressed as x₁(n+31)=(x₁(n+7)+x₁(n)) mod2, described second M sequence is the LFSR according to multinomial x³¹+x⁷+ 1 is calculated, n=I-31；

The Gold sequence is expressed as c (n)=(x₀(n+N_c)+x₁(n+N_c)) mod2, wherein N_cIndicate the position of the cyclic shift Number, the length of the Gold sequence are G, N_c, G be natural number, and G=I.

3. according to the method described in claim 2, it is characterized in that, I is 3344, N_cFor 3200, G 3344, the demodulation reference Signal sequence is expressed as r (n)=1-2*c (n), n=1 ..., 144.

4. method according to any one of claims 1 to 3, which is characterized in that include 2 PBCH symbols in the synchronization signal block Number, the Secondary resource includes the corresponding different piece of 2 PBCH symbols；

The demodulated reference signal sequence average is divided into identical first subsequence of length and the second sub- sequence by the network equipment Column；

First subsequence and second subsequence are respectively mapped to the difference of the Secondary resource by the network equipment Part；

5. a kind of method of synchronous signal transmission, which is characterized in that including

Terminal device obtains arrangement set to be selected, includes multiple sequences to be selected in the arrangement set to be selected, the multiple to be selected The generating process of a sequence to be selected in sequence includes: to generate two M sequences according to LFSR, and the initial value of the LFSR is root It is determined according to one of the corresponding value set of partial information indicated in information value, the instruction information is same to indicate The sequence that step block is concentrated in affiliated synchronous signal impulse；It is added after carrying out cyclic shift to described two M sequences, generates one A Gold sequence；A subsequence is intercepted from the Gold sequence as sequence to be selected；

The terminal device selects from the arrangement set to be selected with the demodulated reference signal correlation highest one Sequence to be selected；

The terminal device is according to selected sequence to be selected, to true when determining the selected sequence to be selected of generation Determine the partial information of the initial value of LFSR.

6. -5 any method according to claim 1, which is characterized in that the instruction information is synchronization signal block time rope Draw SBTI.

7. a kind of network equipment, which is characterized in that including transceiver and processor, wherein

The processor, for generating synchronization signal block and to the determination synchronization signal block in affiliated synchronous signal impulse The instruction information of the sequence of concentration, the synchronization signal block include Physical Broadcast Channel PBCH symbol；

Two M sequences are generated according to linear feedback shift register LFSR, the initial value of the LFSR is believed according to the instruction What the partial information in breath determined；

A subsequence is intercepted from the Gold sequence as demodulated reference signal sequence, the demodulated reference signal sequence is used The signal transmitted in the running time-frequency resource mapped the PBCH symbol demodulates, the running time-frequency resource include first resource and Secondary resource；

The transceiver removes the portion for sending by the first resource in Master Information Block MIB and the instruction information Divide remaining information except information, and passes through the Secondary resource and send the demodulated reference signal sequence.

8. the network equipment according to claim 7, which is characterized in that

The size of the LFSR is 31, and the LFSR initial value is c_init, Wherein c_init=2^p*PCID+2^q*SS_idx+ 1, wherein PCID is cell ID, SS_idxIt is the decimal representation of the partial information, P is less than the natural number equal to 20, and q is the natural number less than or equal to 27,

9. the network equipment according to claim 8, which is characterized in that I 144, N_cFor 3200, G 3344, the demodulation Reference signal sequence is expressed as r (n)=1-2*c (n), n=1 ..., 144.

10. according to any network equipment of claim 7 to 9, which is characterized in that include 2 in the synchronization signal block PBCH symbol, the Secondary resource include the corresponding different piece of shown 2 PBCH symbols；

The processor is also used to for the demodulated reference signal sequence average to be divided into identical first subsequence of length and second Subsequence；First subsequence and second subsequence are respectively mapped to the different piece of the Secondary resource；

The transceiver, for sending first subsequence and the second sub- sequence by the different piece of the Secondary resource Column.

11. 0 any network equipment according to claim 1, which is characterized in that when the instruction information is synchronization signal block Between index SBTI.

12. a kind of terminal device, which is characterized in that including transceiver and processor, wherein

The processor includes multiple sequences to be selected in the arrangement set to be selected for obtaining arrangement set to be selected, described more The generating process of a sequence to be selected in a sequence to be selected includes: to generate two M sequences according to LFSR, and the LFSR's is initial Value is determined according to one of the corresponding value set of the partial information value in instruction information, the instruction information to Indicate the sequence that synchronization signal block is concentrated in affiliated synchronous signal impulse；It is added after carrying out cyclic shift to described two M sequences, Generate a Gold sequence；A subsequence is intercepted from the Gold sequence as sequence to be selected；

The processor is also used to select from the arrangement set to be selected highest with the demodulated reference signal correlation One sequence to be selected；

According to selected sequence to be selected, determine when generating selected sequence to be selected to determine that LFSR's is initial The partial information of value.

13. 2 any terminal device according to claim 1, which is characterized in that when the instruction information is synchronization signal block Between index SBTI.

14. a kind of communication system, which is characterized in that including the network equipment a method according to any one of claims 7 to 11 and such as right It is required that 12 to 13 any terminal devices.