CN101465830B - Method, system and device for sending and receiving synchronous information - Google Patents

Method, system and device for sending and receiving synchronous information Download PDF

Info

Publication number
CN101465830B
CN101465830B CN200710125283A CN200710125283A CN101465830B CN 101465830 B CN101465830 B CN 101465830B CN 200710125283 A CN200710125283 A CN 200710125283A CN 200710125283 A CN200710125283 A CN 200710125283A CN 101465830 B CN101465830 B CN 101465830B
Authority
CN
China
Prior art keywords
sequence
index
length
subcarrier
basic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN200710125283A
Other languages
Chinese (zh)
Other versions
CN101465830A (en
Inventor
曹帼琼
王俊伟
范霄安
冯瑄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN200710125283A priority Critical patent/CN101465830B/en
Priority to PCT/CN2008/073589 priority patent/WO2009082940A1/en
Publication of CN101465830A publication Critical patent/CN101465830A/en
Application granted granted Critical
Publication of CN101465830B publication Critical patent/CN101465830B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
    • H04J13/0062—Zadoff-Chu
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a synchronous sequence sending method used to send synchronous sequences with different length, which occupy the same frequency resource, or synchronous sequences with equal length, which occupy different frequency resources, to systems with different sub-carrier wave width. The invention further provides a corresponding receiving method, and a system and a device for executing the method. The sending method and the system can indicate the information relevant to a district except the subdistrict ID, and the corresponding method and device at the synchronous sequence receiving terminal enable the terminal to acquire the information relevant to the district except the subdistrict ID.

Description

Transmission, the method and system of receiving synchronous information, device
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of transmission, the method and system of receiving system synchronizing information, device.
Background technology
In communication system, possibly use several kinds of different frequency ranges.For example in the LTE system, a kind of is the frequency range that is exclusively used in the professional transmission of MBMS, is called special carrier (DC, Dedicated Carrier), uses the sub-district of DC transport service to be called MBMS dedicated cell (MBMS dedicated cells).Also having a kind of is to be used to transmit the professional frequency range of clean culture (unicast), is called unicast carriers (UC, Unicast Carrier), uses the sub-district of UC transport service to be called clean culture sub-district (unicast cell).A kind of in addition is to be used for mixed transport clean culture and the professional frequency range of MBMS, is called mixed carrier (MC, Mixed Carrier), uses the sub-district of MC transport service to be called mixed cell (mixed cell).
Be example with the LTE system below, introduce its basic subframe structure and basic transformat.With reference to figure 1, in the frame structure of LTE system, a radio frames (radio frame) comprises 10 sub-frame (subframe), and each subframe is divided into 2 time slots (slot), and each time slot comprises several OFDM symbols (symbol).
Adopt under the situation that unicast carriers or mixed carrier (UC/MC) transmit in system, two kinds of basic transformats (basic transmission scheme) are arranged, referring to table 1:
Table 1:
Subcarrier width FFT counts Symbol lengths CP length Every time slot symbolic number
Form
1 15kHz 512/5MHz Normal length+CP length Short CP 7
Form 2 15kHz 512/5MHz Normal length+CP length Long CP 6
Wherein, Under form 1, form 2 situation 6 kinds of system bandwidth: 1.25MHz, 2.5MHz, 5MHz, 10MHz, 15MHz and 20MHz are arranged in the table 1; Corresponding FFT counts and is respectively 128,256,512,1024,1536 and 2048, and wherein to count be 512 to the corresponding FFT of 5MHz bandwidth.
Adopt under the situation that special carrier (DC) transmits in system, two kinds of basic transformats are also arranged, referring to table 2:
Table 2:
Subcarrier width FFT counts Symbol lengths CP length Every time slot symbolic number
Form
3 7.5kHz 1024/5MHz Normal length * 2+CP length Long CP*2 3
Format 4 15kHz 512/5MHz Normal length+CP length Long CP 6
Wherein, Form 3 in the table 2 has 6 kinds of system bandwidth: 1.25MHz, 2.5MHz, 5MHz, 10MHz, 15MHz and 20MHz; Corresponding FFT counts and is respectively 256,512,1024,1536,2048 and 2048, and wherein to count be 1024 to the corresponding FFT of 5MHz bandwidth.
With reference to figure 2, be the transmission structure sketch map on a time slot of the form 1 in the above table 1,2, form 2, form 3, format 4.Wherein, the short CP of left twill (45 ° of oblique lines) expression; The long CP of twill left to right (135 ° of oblique lines) expression; Subcarrier spacing is a subcarrier width.
In the prior art, only relating to UC/MC is the synchronizing information sending, receiving method under the 15kHz subcarrier width, for: synchronizing sequence is mapped on the shared running time-frequency resource of synchronizing channel (SCH, Synchronization Channel), sends.The terminal is through detecting said synchronizing sequence, and union is learnt relative synchronous information.
Particularly; With reference to figure 3; Be the frequency-domain structure sketch map of the system that takies the 15kHz subcarrier width in the prior art, for the communication system of the subcarrier spacing that adopts 15kHz, for example aforementioned form 1 under the UC/MC situation or the synchronizing channel under the form 2; On frequency domain, take the center 960kHz bandwidth of system bandwidth, take 64 number of sub-carrier at center.
With reference to figure 4; Be the structural representation (the frame structure location drawing of form 1) of synchronizing channel in the prior art on time domain: synchronizing channel is positioned at the 0th and the 5th sub-frame of a radio frames; Primary synchronization channel (P-SCH wherein; Primary-SCH) be positioned at last symbol of first time slot of subframe 0, subframe 5, in the drawings with grid representation, auxiliary synchronization channel (S-SCH; Secondary-SCH) be positioned at the penult symbol of this time slot, respectively with left twill (45 ° of oblique lines) and twill left to right (135 ° of oblique lines) expression.
Carry main synchronizing sequence on the primary synchronization channel, carried secondary synchronization sequences on the auxiliary synchronization channel.Main synchronizing sequence has 3 in the prior art, and secondary synchronization sequences has 170.Synchronizing channel can also be carried sub-district ID simultaneously in the prior art; Wherein primary synchronization channel carries one of them of 3 " ID in the group "; Distinguish with said 3 main synchronizing sequences, auxiliary synchronization channel carries 170 " ID group number ", distinguishes with said 170 secondary synchronization sequences.Synchronizing channel of the prior art like this can be carried 510 sub-district ID.Sub-district ID is one of information about the sub-district, is used to distinguish different sub-districts.Above-mentioned sub-district ID can be known according to analyzing after receiving above-mentioned synchronizing sequence in the terminal.
The structure of above-mentioned synchronizing channel P-SCH of the prior art and S-SCH is only applicable to the UC/MC of 15kHz subcarrier width.Wherein P-SCH employing length is 63 ZC sequence, and the index of basic sequence is respectively 25,29,34.
Yet,, can not carry more information about the zone because above-mentioned synchronous channel structure of the prior art is only applicable to the UC/MC of 15kHz subcarrier width.Here " zone " refers to the space of can the independent bearing synchronous channel SCH corresponding sequence; This space can be by the time, sky, the space of three-dimensional any one or more dimensions combination definition frequently; Comprise sector of the prior art, sub-district, the same notion of web area (SFN Area, Single Freq terminal n cy Network Area) frequently.The information (for example 15kHz or 7.5kHz) of the subcarrier width of for example regional place system, or the area type information (for example being UC/MC zone or DC zone) under identical subcarrier width.Promptly use other information about the zone that method that existing synchronizing sequence sends can not be beyond the indicating cell ID, relevant terminal receives the method for synchronizing sequence with it, can not obtain other information about the zone beyond the ID of sub-district.
Summary of the invention
In view of this, technical problem of the present invention provides a kind of synchronizing sequence sending method, can carry more information about the zone, and is corresponding with it, and a kind of synchronizing sequence method of reseptance is provided, and makes the terminal can obtain more information about the zone.
An embodiment of the present invention provides a kind of synchronizing sequence sending method; System for the different subcarriers width; Transmission takies identical frequency resource but length different synchronization sequence, perhaps sends the identical but acquisition frequency resource different synchronization sequence of length.
Corresponding with above-mentioned synchronizing sequence sending method; The method of terminal processes synchronizing sequence also is provided; Comprise: the relevant or matching result of the signal that the terminal acquisition receives, the said perhaps subcarrier bandwidth and the corresponding synchronizing sequence that sends of matching result correspondence system of being correlated with; The more above-mentioned relevant perhaps size of matching result obtains maximum; According to the corresponding subcarrier bandwidth of said maximum with and synchronizing sequence, obtain the subcarrier bandwidth of network side and the synchronizing sequence that this network side adopted.
Another embodiment of the present invention provides the execution system for carrying out said process, and a kind of synchronizing sequence transmitting system is characterized in that, comprises
First sequence is sent subsystem, is used for the system for the different subcarriers width, sends and takies identical frequency resource but length different synchronization sequence; Perhaps, second sequence is sent subsystem, is used to send the identical but acquisition frequency resource different synchronization sequence of length.
A kind of sequential reception device also is provided, has it is characterized in that, comprised with lower unit:
Sample rate processing unit: be used for for the signal that receives, use two kinds of different sample rate S 1And S 2Sample S 2=S 1* 2, and S 1For subcarrier width is M 1The time the shared bandwidth of P-SCH corresponding sample rate, S 2For subcarrier width is M 2The time the shared bandwidth of P-SCH corresponding sample rate;
Search unit: be used to use local sequence and above-mentioned reception signal of sampling to carry out relevant or coupling, obtain relevant or matching result through the different sample rate
Figure GSB00000562212400041
I=1,2, n=1,2,3, wherein Corresponding sample rate S 1Perhaps S 2With sequence indicator u n, said local sequence be end side local that generate or storage, with the known corresponding sequence of network side P-SCH transmission sequence;
Decision unit: be used for the whole relevant or matching result under all sample rates relatively, judge the subcarrier width information of institute region of search, and obtain synchronizing information according to maximum.
Above-mentioned each execution mode, sending method and system other information beyond can indicating cell ID about the zone, relevant terminal receives the method and apparatus of synchronizing sequence with it, can make the terminal obtain other information about the zone beyond the ID of sub-district.
Description of drawings
Fig. 1 is the frame structure sketch map of LTE system in the prior art;
Fig. 2 is the basic transformat sketch map of LTE system in the prior art;
Fig. 3 is the frequency domain sketch map of 15kHz subcarrier width system in the prior art;
Fig. 4 is synchronizing channel P-SCH and the position of S-SCH in frame structure in the prior art;
Fig. 5 is the flow chart of synchronizing sequence sending method in the execution mode one;
Fig. 6 is the frequency-domain structure figure of Fig. 6 two sub-carrier systems in the execution mode one;
Fig. 7 is the structural representation of synchronizing sequence transmitting system in the execution mode one;
Embodiment
An embodiment of the present invention provides a kind of synchronizing sequence sending method; System for the different subcarriers width; Transmission takies identical frequency resource but length different synchronization sequence, perhaps sends the identical but acquisition frequency resource different synchronization sequence of length.Corresponding with above-mentioned synchronizing sequence sending method, the method for terminal processes synchronizing sequence comprises: the relevant or matching result of the signal that the terminal acquisition receives, the said perhaps subcarrier bandwidth and the corresponding synchronizing sequence that sends of matching result correspondence system of being correlated with; The more above-mentioned relevant perhaps size of matching result obtains maximum; According to the corresponding subcarrier bandwidth of said maximum with and synchronizing sequence, obtain the subcarrier bandwidth of network side and the synchronizing sequence that this network side adopted.
Embodiment one
In this execution mode, a kind of method of sending and receiving of synchronizing sequence is provided, can indicates the subcarrier width of different system.
The network side of communication system, for example one or more different base stations, with reference to figure 5, carry out the following step:
S11, be M for subcarrier width 1System, generating n1 length is L1, the basic sequence index is respectively u 11, u 12...., u 1n1The ZC sequence, n1 is a natural number, and n1≤3, a said n1 sequence has high auto-correlation and low their cross correlation, and u 12=L1-u 11, basic sequence index u 11, u 12..., u 1n1Near L1/2;
For subcarrier width is M 2, M 2=M 1* 2 system, generating n2 length is L2,
Figure GSB00000562212400051
The index of basic sequence is respectively u 21, u 22..., u 2n2The ZC sequence, n2 is a natural number, and n2≤3, a said n2 sequence has high auto-correlation and low their cross correlation, and u 22=L2-u 21, basic sequence index u 21, u 22..., u 2n2Near L2/2;
And aforementioned length L 1 has low their cross correlation between the ZC sequence of L2;
Particularly, the process of said formation sequence comprises and calculating, and perhaps from the sequence of storage, obtains.
S12, be M for subcarrier width 1System, be that L1, basic sequence index are respectively u with 1 length of said n 11, u 12..., u 1n1The ZC sequence be mapped on the shared running time-frequency resource of primary synchronization channel P-SCH, send said synchronizing sequence;
For subcarrier width is M 2, M 2=M 1* 2 system is L2 with 2 length of said n, and the index of basic sequence is respectively u 21, u 22..., u 2n2The ZC sequence be mapped on the shared running time-frequency resource of P-SCH, send said synchronizing sequence.
Like this, the sequence that has as above n1+n2 kind to send to transmitting terminal.To end side, adopt following step:
S21, the local sequence of use and the signal that receives carry out relevant or coupling, obtain n1+n2 relevant perhaps matching result
Figure GSB00000562212400061
1≤n j≤n i, i=1,2, n i≤3, said relevant or matching result
Figure GSB00000562212400062
The subcarrier bandwidth of corresponding system is M i, the corresponding synchronizing sequence that network side sent index do
Figure GSB00000562212400063
Said local sequence be end side local that generate or storage, with the known corresponding sequence of network side primary synchronization channel P-SCH transmission sequence, be an aforementioned n1+n2 sequence;
S22, these sizes relevant or matching result of comparison are got maximum;
S23, according to said maximum, judge subcarrier bandwidth and the synchronizing sequence that this system adopts of the system at transmitting terminal place.
Lift concrete instance explanation below, in this example, comprise the system of two sub-carrier width: 15kHz subcarrier width and 7.5kHz subcarrier width, the concrete grammar in this example is:
At network side:
S31, to the system of 15kHz subcarrier width; It with length 63 ZC sequence; The basic sequence index can be 25 or 29 or 34; In this length is that 1 plural number 0 is filled in 63 sequence front, forms physical length and be 64 sequence, is mapped on 64 number of sub-carrier of this 15kHz subcarrier width system centre bandwidth;
S32, to the system of 7.5kHz subcarrier width; It with length 127 ZC sequence; The basic sequence index is respectively 61 or 65 or 66; In this length is that 1 plural number 0 is filled in 127 sequence front, forms physical length and be 128 sequence, is mapped on 128 number of sub-carrier of this 7.5kHz subcarrier width system centre bandwidth.
These three length are 127, and the basic sequence index is respectively 61,65, and 66 ZC sequence satisfies u 1=n1, u 2=127-n1, u 3=n2, promptly wherein two basic sequence indexs form complementary relationships to sequence length 127, and three basic sequence indexs all 127 half near 64; These three length are that 127 ZC sequence has more satisfactory auto-correlation and their cross correlation; And satisfy with length be 63, index is that three basic sequences of 25,29,34 hang down cross-correlation.
The structure of the frequency domain that the method for above-mentioned mapping forms is with reference to figure 6.
In end side:
Used local matching sequence also is above-mentioned 6 sequences, and promptly length is that 63 basic sequence indexs are that 25 and 29 and 34 ZC sequence and length are that 127 basic sequence indexs are respectively 61 and 65 and 66 ZC sequence.
S41, end side are carried out relevant with above-mentioned 6 sequences and the signal that receives or coupling, and obtaining relevant perhaps matching result is A, B, C, D, E, F.System that the corresponding subcarrier of said A is 15kHz and index are 25 ZC sequence; System that the corresponding subcarrier of B is 15kHz and index are 29 ZC sequence; System that the corresponding subcarrier of C is 15kHz and index are 34 ZC sequence; System that the corresponding subcarrier of D is 7.5kHz and index are 61 ZC sequence, and system that the corresponding subcarrier of E is 7.5kHz and index are 65 ZC sequence, and system that the corresponding subcarrier of F is 7.5kHz and index are 66 ZC sequence difference.
The size of S42, comparison A to F is got maximum,
S43, judge subcarrier width and the synchronizing sequence of employing of the system of this end side corresponding sending terminal according to this maximum.Subcarrier width, the corresponding sequence of this maximum that this maximum is corresponding are the subcarrier bandwidth of network side and the synchronizing sequence that this network side sent.
For example, suppose to be to the maximum A, what then can the decision network side send is that length is 63 under the 15kHz subcarrier, index is 25 ZC sequence; If be E to the maximum, what then can the decision network side send is that length is 63 under the 7.5kHz subcarrier, index is 65 ZC sequence.
In this embodiment, its beneficial effect is embodied in:
Because being 127 ZC sequence, above-mentioned three length have more satisfactory auto-correlation and their cross correlation; And they are that 63 ZC sequence has lower their cross correlation with length; Make 6 ZC sequences that the terminal can be through searching for P-SCH respectively (following three length of 15kHz are that 63 ZC sequence and following three length of 7.5kHz are 127 ZC sequence); When obtaining synchronizing information (length of synchronizing sequence, index etc.), can also obtain subcarrier width information.Simultaneously can find out that length is 127 sequence, make that sequence length under P-SCH and the 15kHz subcarrier width under the 7.5kHz subcarrier width is that 63 P-SCH occupies identical frequency bandwidth, makes that their net synchronization capability is close.
In other embodiment, when a plurality of adjacent DC MBMS zone is asynchronous, can not need 3 P-SCH sequences, only use this moment in the above-mentioned sequence one or two to get final product.
This embodiment also provides a kind of sequence transmitting system, and with reference to figure 7, promptly first sequence is sent subsystem, and this system specifically comprises: first sequence generating unit: being used for for subcarrier width is M 1System, generating n1 length is L1, the basic sequence index is respectively u 11, u 12...., u 1n1The ZC sequence, n1 is a natural number, and n1≤3, a said n1 sequence has high auto-correlation and low their cross correlation, and u 12=L1-u 11, basic sequence index u 11, u 12..., u 1n1Near L1/2;
The first series processing unit: being used for for subcarrier width is M 1System, be that L1, basic sequence index are respectively u with 1 length of said n 11, u 12..., u 1n1The ZC sequence be mapped on the shared running time-frequency resource of primary synchronization channel P-SCH, send said synchronizing sequence;
Second sequence generating unit: being used for for subcarrier width is M 2, M 2=M 1* 2 system, generating n2 length is L2,
Figure GSB00000562212400081
The index of basic sequence is respectively u 21, u 22..., u 2n2The ZC sequence, n2 is a natural number, and n2≤3, a said n2 sequence has high auto-correlation and low their cross correlation, and u 22=L2-u 21, basic sequence index u 21, u 22..., u 2n2Near L2/2; And aforementioned length L 1 has low their cross correlation between the ZC sequence of L2;
The second series processing unit: being used for for subcarrier width is M 2, M 2=M 1* 2 system is L2 with 2 length of said n,
Figure GSB00000562212400082
The index of basic sequence is respectively u 21, u 22..., u 2n2The ZC sequence be mapped on the shared running time-frequency resource of P-SCH, send said synchronizing sequence.
In actual communication systems, above-mentioned first sequence generating unit and the first series processing unit are in same base station, and second sequence generating unit and the second series processing unit are in same base station.It can be a base station that above-mentioned first sequence is sent subsystem, or a plurality of base station.When first sequence transmission subsystem was a base station, above-mentioned first sequence generating unit and the first series processing unit and second sequence generating unit and the second series processing unit were in same base station.
Concrete, be example with the DC zone of 7.5kHz subcarrier width, the dispensing device of its P-SCH on a base station comprises:
Sequence generating unit: generate length and be 127, the basic sequence index is 61,65 or 66 one of them ZC sequence;
The series processing unit: in this length is that 1 plural number 0 is filled in 127 sequence front; The formation physical length is 128 sequence; In the pairing time resource of P-SCH; Be mapped to above-mentioned sequence on 128 number of sub-carrier of this 7.5kHz subcarrier width system centre bandwidth, carry out the processing of running time-frequency resource then.
Embodiment two
In this embodiment; A kind of sending method and method of reseptance of synchronizing sequence are provided, subcarrier width information that can indication mechanism, for example 7.5kHz subcarrier width or 15kHz subcarrier width; When corresponding certain area type of the system of certain subcarrier width; Information that also can the indicating area type when the zone of 7.5kHz subcarrier width must be the DC zone, can be DC zone or UC/MC zone through the indication of this execution mode for example.
At network side:
S51, n sequence length of generation are that L, basic sequence index are respectively u 1, u 2..., u nThe ZC sequence, n is a natural number, n≤3, a said n sequence has high auto-correlation and low their cross correlation, and u 2=L-u 1, and basic sequence index u 1, u 2..., u nNear L/2;
S52, for M 1The system of subcarrier width with above-mentioned ZC sequence, is mapped to M 1On the running time-frequency resource that the P-SCH of subcarrier width system takies, send;
For M 2, M 2=M 1The system of * 2 subcarrier widths is mapped to M with above-mentioned ZC sequence 2On the running time-frequency resource that the P-SCH of subcarrier width system takies, send.
In end side:
Two kinds of different sample rate S are used for the signal that receives in S61, terminal 1And S 2Sample S 2=S 1* 2, and S 1For subcarrier width is M 1The time the shared bandwidth of P-SCH corresponding sample rate, S 2For subcarrier width is M 2The time the shared bandwidth of P-SCH corresponding sample rate;
S62, the reception signal that uses local sequence and above-mentioned process different sample rate to sample carry out relevant or coupling, obtain the relevant perhaps matching result in n * 2 I=1,2, n=1,2,3, wherein
Figure GSB00000562212400092
Corresponding sample rate S iThe sequence indicator u that is sent with network side n, said local sequence be end side local that generate or storage, with the known corresponding sequence of network side P-SCH transmission sequence;
S63, comparison said n * 2 a relevant perhaps matching result
Figure GSB00000562212400093
obtain maximum;
S64, judge the subcarrier width of this regional network side and the synchronizing sequence of network side according to this maximum.Corresponding subcarrier width, the corresponding sequence of this maximum of sample rate that this maximum is corresponding is the subcarrier bandwidth of network side and the synchronizing sequence that this network side adopted.
To comprise the DC zone of 7.5kHz subcarrier width in the system, the situation in the UC/MC zone of 15kHz subcarrier width is an example, specifically describes below.
At network side:
S71, for the UC/MC of 15kHz subcarrier zone, with length be 63, the basic sequence index is respectively 25,29,34 ZC sequence is mapped on the running time-frequency resource that the P-SCH of 15kHz subcarrier width system takies, and sends;
S72, regional for the DC of 7.5kHz subcarrier width; To adopt the identical sequence of ZC sequence with P-SCH under the aforementioned 15kHz subcarrier (is that sequence length is 63, the basic sequence index is respectively 25; 29; 34 ZC sequence), is mapped on the running time-frequency resource that the 7.5kHz subcarrier width P-SCH of system takies, sends;
In the present embodiment; Length is the frequency bandwidth that 63 sequence occupies the P-SCH under the 7.5kHz subcarrier width; Half the for the occupied frequency bandwidth of P-SCH under the original 15kHz subcarrier, thus P-SCH taking reduced to 7.5kHz subcarrier width system resource; Because the system of 7.5kHz subcarrier width and the system of 15kHz subcarrier width adopt same P-SCH sequence, thereby strengthened the compatibility of communication system.
In end side:
The step of the execution at above-mentioned terminal specifically comprises:
S81, end-on collect mail number be correlated with three local sequences with sample rate 0.96MHz sampling back and perhaps mate.Local sequence is that sequence length is 63, the basic sequence index is respectively 25,29,34 ZC sequence.Relevant or the matching result that obtains; Be A, B, C; Corresponding respectively index is 25,29,34, the length relevant perhaps matching result that to be 63 the local sequence of ZC obtain with the signal that receives sample rate 0.96MHz under, and 0.96MHz is the sample rate of subcarrier width shared bandwidth correspondence of P-SCH when being 15kHz.
S82, be correlated with these three local sequences with sample rate 0.48MHz sampling back and perhaps mate to received signal.Obtain relevant perhaps matching result and for example be D, E, F; Corresponding respectively index is 25,29,34, the length relevant perhaps matching result that to be 63 the local sequence of ZC obtain with the signal that receives sample rate 0.48MHz under, and 0.48MHz is the sample rate of subcarrier width shared bandwidth correspondence of P-SCH when being 7.5kHz.
The size of S83, comparison A to F obtains maximum,
S84, obtain the subcarrier width of network side and the index of sequence according to this maximum.Corresponding subcarrier width, the corresponding sequence of this maximum of sample rate that this maximum is corresponding is the subcarrier bandwidth of network side and the synchronizing sequence that this network side adopted.
Suppose to be to the maximum A, what can judge then that transmitting terminal sends is that length is 63 under the 15kHz subcarrier, index is 25 ZC sequence; If be E to the maximum, what can judge then that transmitting terminal sends is that length is 63 under the 7.5kHz subcarrier, index is 29 ZC sequence, and the rest may be inferred.
In this execution mode,, length has more satisfactory auto-correlation and their cross correlation because being 63 ZC sequence; And the cross correlation between the sequence of former 63 long sequences and these 63 long half formation of sequence is lower, can guarantee to select correct result through above-mentioned search.
In this embodiment, a kind of system that carries out above-mentioned sequential transmission method also is provided, i.e. the second sequence transmitting system specifically comprises:
The 3rd sequence generating unit: being used to generate n sequence length is that L, basic sequence index are respectively u 1, u 2..., u nThe ZC sequence, n is a natural number, n≤3, a said n sequence has high auto-correlation and low their cross correlation, and u 2=L-u 1, and basic sequence index u 1, u 2..., u nNear L/2;
The 3rd series processing unit: be used for for M 1The system of subcarrier width is mapped to M with above-mentioned ZC sequence 1On the running time-frequency resource that the P-SCH of subcarrier width system takies, send;
The 4th series processing unit: be used for for M 2, M 2=M 1The system of * 2 subcarrier widths is mapped to M with above-mentioned ZC sequence 2On the running time-frequency resource that the P-SCH of subcarrier width system takies, send.
In actual communication systems, above-mentioned the 3rd sequence generating unit and the 3rd series processing unit are in same base station, and the 3rd sequence generating unit and the 4th series processing unit are in same base station.It can be a base station that above-mentioned second sequence is sent subsystem, or a plurality of base station.When second sequence transmission subsystem was a base station, above-mentioned the 3rd sequence generating unit and the 3rd series processing unit and the 4th series processing unit were in same base station.
Can find out from top scheme, when second sequence transmission subsystem is a base station, only need one the 3rd sequence generating unit in the system, promptly reuse the 3rd sequence generating unit, thereby strengthened the compatibility of system, reduce the complexity of equipment.
Concrete, for the DC zone of 15kHz or 7.5kHz subcarrier width, the dispensing device of its P-SCH comprises:
Sequence generating unit: generate length and be 63, the basic sequence index is 25,29 or 34 one of them ZC sequences;
The series processing unit: in this length is that 1 plural number 0 is filled in 63 sequence front; The formation physical length is 64 sequence; In the pairing time resource of P-SCH; Be mapped to above-mentioned sequence on 64 number of sub-carrier of this 15kHz or 7.5kHz subcarrier width system centre bandwidth, carry out the processing of running time-frequency resource then.
This embodiment also provides a kind of synchronizing information receiving system to comprise:
Sample rate processing unit: be used for for the signal that receives, use two kinds of different sample rate S 1And S 2Sample S 2=S 1* 2, and S 1For subcarrier width is M 1The time the shared bandwidth of P-SCH corresponding sample rate, S 2For subcarrier width is M 2The time the shared bandwidth of P-SCH corresponding sample rate;
Search unit: be used to use local sequence and above-mentioned reception signal of sampling to carry out relevant or coupling, obtain relevant or matching result through the different sample rate
Figure GSB00000562212400111
I=1,2, n=1,2,3, wherein
Figure GSB00000562212400112
Corresponding sample rate S 1Perhaps S 2With sequence indicator u n, said local sequence be end side local that generate or storage, with the known corresponding sequence of network side P-SCH transmission sequence;
Decision unit: be used for the whole relevant or matching result under all sample rates relatively, judge the subcarrier width information of institute region of search, and obtain synchronizing information according to maximum.
Above-mentioned synchronizing information receiving system is on the terminal.
Subcarrier width system with 7.5kHz and 15kHz is an example, and the receiving system of P-SCH comprises:
The sample rate processing unit: control is to adopt different sample rates to received signal; For example 0.96MHz and 0.48MHz sample; The corresponding sample rate of the shared bandwidth of P-SCH when wherein 0.96MHz is 15kHz corresponding to subcarrier width, the corresponding sample rate of the shared bandwidth of P-SCH when 0.48MHz is 7.5kHz corresponding to subcarrier width;
Search unit: adopting the for example reception signal handled of 0.96MHz and 0.48MHz of different sample rate, be 63 with the length of this locality storage respectively, the basic sequence index is that 25,29,34 the local sequence of ZC is carried out relevant or mated, and writes down the result.
Decision unit: the whole relevant or match search result under all sample rates relatively, judge the subcarrier width information of institute region of search according to maximum, and obtain synchronizing information.
Can find out from said apparatus; Though 6 search will be done in the terminal; But can reuse identical search unit for 0.96MHz with the reception signal under the 0.48MHz sampling processing, compare hardware resource with embodiment one and can save half, reduce the complex equipments degree at terminal.
And; The sequence of having continued to use P-SCH 63 length under original 15kHz subcarrier of P-SCH design under this 7.5kHz subcarrier; The dual-mode base station that helps UC/MC and DC is reused the P-SCH signal generating apparatus and the terminal of network side and is reused the synchronous searching device under the 15kHz subcarrier; Reduce the complexity of base station transmitting terminal and terminal receiving device, and shared bandwidth resources have been saved half the.
Embodiment three:
In this embodiment, a kind of method of sending and receiving of synchronizing sequence being provided, can indicating the zones of different type under the same sub-carrier width, for example is DC zone or UC/MC zone.
At network side:
S91, same sub-carrier width but dissimilar zones are mapped to identical synchronizing sequence on the shared running time-frequency resource of primary synchronization channel P-SCH, send;
Different auxiliary synchronization channels is adopted in S92, said dissimilar zone.
For example, said auxiliary synchronization channel is different, and comprise a kind of of following situation or its combination in any: adopt different auxilliary synchronous SSC sequences, perhaps use different auxilliary synchronous scramblers, perhaps auxiliary synchronization channel S-SCH takies different running time-frequency resources.
In end side:
The type of distinguishable region is come through detecting auxiliary synchronization channel in S101, terminal according to detected auxiliary synchronization channel.
The system that comprises DC zone and two kinds of area types of UC/MC with the 15kHz subcarrier width is that example describes below:
The primary synchronization channel P-SCH in network side: S111, DC zone reuses the primary synchronization channel P-SCH sequence in UC/MC zone, and for example employing length is 63 ZC sequence, and the index of basic sequence is respectively 25,29,34 1 or a plurality of sequences;
Different auxiliary synchronization channel S-SCH is adopted with UC/MC in S112, DC zone, and wherein different auxiliary synchronization channel S-SCH comprises a kind of of scenario or its combination in any: use different SSC sequences, use different scramblers, take different running time-frequency resource etc.
UC/MC zone and DC zone can be distinguished according to detected auxiliary synchronization channel S-SCH through detecting auxiliary synchronization channel S-SCH in end side: S121, terminal.
Through said method, for the zone of same sub-carrier width, can pass through the type information of the transmission indicating area of synchronizing sequence, for example be UC/MC zone or DC zone; The type information of above-mentioned zone can be known through receiving synchronizing sequence in the terminal.
In addition, the scheme that this execution mode three provides can combine with previous embodiment one, i.e. network side, and for example one or more base station is carried out the step in this execution mode and the execution mode one simultaneously; The step in this execution mode and the execution mode one is carried out at the terminal simultaneously.This more excellent execution mode can be indicated the type information of zones of different under the same sub-carrier width through auxiliary synchronization channel S-SCH through primary synchronization channel P-SCH indication subcarrier width information on the one hand on the other hand.
In addition, the scheme that present embodiment provides can combine with previous embodiment two, i.e. network side, and one or more base station is for example carried out the step of this execution mode and execution mode two simultaneously; The step in this execution mode and the execution mode two is carried out at the terminal simultaneously.This more excellent execution mode; Subcarrier width information that on the one hand can the indicating area; Can also reduce primary synchronization channel P-SCH taking to 7.5kHz subcarrier width system resource; Strengthened the compatibility of communication system, on the other hand can be through the type information of zones of different under the auxiliary synchronization channel S-SCH indication same sub-carrier width.
Embodiment four:
In this embodiment, a kind of method of sending and receiving of synchronizing sequence is provided, for the same sub-carrier width but dissimilar zones, type that can the indicating area, for example still UC/MC zone, DC zone.
The system that comprises DC zone and two kinds of area types of UC/MC with the 15kHz subcarrier width is that example describes below:
Network side:
The primary synchronization channel P-SCH in S131, DC zone adopts and different one or more primary synchronization channel P-SCH sequence in MC/UC zone;
The UC/MC of 15kHz subcarrier width and the DC of 15kHz subcarrier width can be distinguished through different primary synchronization channel P-SCH channels in end side: S141, terminal.
The sequence of 63 length is adopted in a concrete embodiment UC/MC zone, and the primary synchronization channel P-SCH in DC zone adopts the ZC sequence of other length, and for example length is 61 ZC sequence.
Among the more concrete embodiment, if DC zone only needs 1 primary synchronization channel P-SCH sequence, for the primary synchronization channel P-SCH of the system at this place, DC zone, can use length is 63 ZC sequence, and the index of basic sequence is 38.
In this execution mode; Because 38 and 25 pairs of length 63 form complementary; So for index is that 38 sequence can be reused generation unit, the search unit that index is 25 sequence; Thereby help the base station like this and reuse the primary synchronization channel P-SCH signal generating apparatus of network side and the searcher that end side is reused at the terminal, reduce the complexity of base station transmitting terminal and terminal terminal side equipment.
In addition, the scheme that present embodiment provides can combine with embodiment one or embodiment two, promptly carries out the step in this execution mode and embodiment one or the embodiment two simultaneously.This more excellent execution mode on the one hand can be indicated subcarrier width information, type information that on the other hand can the indicating area.
Embodiment five
In this embodiment, the method for a kind of indicating area type information is provided, type that can the indicating area, for example still UC/MC zone, DC zone.
At network side:, adopt identical synchronous channel SCH and different broadcast channels (BCH, Broadcast Channel) for dissimilar zones.Adopt identical synchronous channel SCH to comprise identical primary synchronization channel P-SCH and auxiliary synchronization channel S-SCH.
The system that comprises DC zone and two kinds of area types of UC/MC with the 15kHz subcarrier width is that example describes below:
At network side:
DC reuses in the zone primary synchronization channel P-SCH sequence in MC/UC zone.Reuse the primary synchronization channel P-SCH that promptly refers to the DC zone and adopt the regional identical sequence of primary synchronization channel P-SCH sequence with MC/UC.For example, if the primary synchronization channel P-SCH sequence employing length in MC/UC zone is 63 ZC sequence, the index of basic sequence is respectively 25,29,34 1 or a plurality of sequences, and the primary synchronization channel P-SCH in DC zone also adopts above-mentioned sequence so;
And DC zone with contain the identical auxiliary synchronization channel S-SCH of MC/UC zone employing;
And different broadcast channel BCH is adopted with the MC/UC zone in the DC zone; Wherein, different BCH channels are a kind of of scenario or its combination in any: the different information contents, use the different coding modulation scheme, take different running time-frequency resources, use different scrambler etc.
In end side: it is regional that the DC of UC/MC zone and 15kHz subcarrier width of 15kHz subcarrier width can be distinguished through different BCH channels in the terminal.
Through said method, can for example be UC/MC zone or DC zone through the type information of different broadcast channel BCH indicating areas; The type information of above-mentioned zone can be known in the terminal through different broadcast channel BCH.
In addition; The scheme that present embodiment provides can combine with embodiment one or embodiment two; Promptly carry out step and the step of concrete real-time mode one or embodiment two in this real-time mode simultaneously; On the one hand can indicate subcarrier width information, type information that on the other hand can the indicating area.

Claims (13)

1. a synchronizing sequence sending method is characterized in that, comprising:
For the system of different subcarriers width, send and take identical frequency resource but the step of length different synchronization sequence; Said step comprises:
For subcarrier width is M 1System, generating n1 length is L1, the basic sequence index is respectively u 11, u 12..., u 1n1The ZC sequence, n1 is a natural number, and n1≤3, a said n1 sequence has high auto-correlation and low their cross correlation, and u 12=L1-u 11, basic sequence index u 11, u 12,..., u 1n1Near L1/2;
For subcarrier width is M 2, M 2=M 1* 2 system, generating n2 length is L2,
Figure FSB00000863069400011
The index of basic sequence is respectively u 21, u 22..., u 2n2The ZC sequence, n2 is a natural number, and n2≤3, a said n2 sequence has high auto-correlation and low their cross correlation, and u 22=L2-u 21, basic sequence index u 21, u 22..., u 2n2Near L2/2; And aforementioned length L 1 has low their cross correlation between the ZC sequence of L2;
For subcarrier width is M 1System, be that L1, basic sequence index are respectively u with 1 length of said n 11, u 12..., u 1n1The ZC sequence be mapped on the shared running time-frequency resource of primary synchronization channel P-SCH, send said synchronizing sequence;
For subcarrier width is M 2, M 2=M 1* 2 system is L2 with 2 length of said n, and the index of basic sequence is respectively u 21, u 22..., u 2n2The ZC sequence be mapped on the shared running time-frequency resource of P-SCH, send said synchronizing sequence.
2. send the method for synchronizing sequence according to claim 1, it is characterized in that,
A said n1 length is L1, and the basic sequence index is respectively u 11, u 12..., u 1n1The ZC sequence be specially: 3 length are that 127 basic sequence indexs are respectively 61,65,66 or 54,56,73 ZC sequence;
A said n2 length is L2, and the basic sequence index is respectively u 21, u 22..., u 2n2The ZC sequence be specially: 3 length are 63, and the basic sequence index is 25,29,34 ZC sequence;
Said M 1Be specially 7.5kHz, said M 2Be specially 15kHz.
3. according to the method for the described transmission synchronizing sequence of the arbitrary claim of claim 1-2, it is characterized in that this method also comprises:
For the same sub-carrier width but dissimilar zones identical main synchronizing sequence is mapped on the shared running time-frequency resource of primary synchronization channel P-SCH, send;
Different auxiliary synchronization channels is adopted in said dissimilar zone.
4. method according to claim 3; It is characterized in that said same sub-carrier width but dissimilar zones are specially: the special carrier DC zone of 15kHz subcarrier width, the unicast carriers of 15kHz subcarrier width or mixed carrier UC/MC zone;
It is 63 ZC sequence that said identical main synchronizing sequence is specially length, and the index of basic sequence is respectively 25,29,34 1 or a plurality of sequences.
5. method according to claim 3; It is characterized in that; Said different auxiliary synchronization channel comprises a kind of of following situation or its combination in any: adopt different secondary synchronization sequences, perhaps use different auxilliary synchronous scramblers, perhaps auxiliary synchronization channel S-SCH takies different running time-frequency resources.
6. according to the method for the described transmission synchronizing sequence of the arbitrary claim of claim 1-2, it is characterized in that this method also comprises:
For the same sub-carrier width but dissimilar zones different main synchronizing sequences is mapped on the shared running time-frequency resource of primary synchronization channel P-SCH, send.
7. method according to claim 6 is characterized in that, said same sub-carrier width but dissimilar zones are specially: the DC zone of 15kHz subcarrier width, the UC/MC zone of 15kHz subcarrier width; Said different main synchronizing sequence is specially: be that the index of 63 basic sequence is respectively 25,29,34 ZC sequence for length for the UC/MC of 15kHz subcarrier width zone; DC zone for the 15kHz subcarrier width is other sequence.
8. method according to claim 7 is characterized in that, for the DC of 15kHz subcarrier width zone, said other sequence is specially 1 ZC sequence that length is the index 38 of 63 basic sequence.
9. according to the method for the described transmission synchronizing sequence of the arbitrary claim of claim 1-2, it is characterized in that this method also comprises:
Identical synchronous channel SCH and different broadcast channel BCH are adopted with the MC/UC zone in the DC zone.
10. the method for transmission synchronizing sequence according to claim 9; It is characterized in that said different BCH comprises a kind of of scenario or its combination in any: the different information contents, use the different coding modulation scheme, take different running time-frequency resources, use different scramblers.
11. a synchronizing sequence method of reseptance is characterized in that,
Use local sequence and the signal that receives to carry out relevant or coupling, obtain relevant or matching result 1≤n j≤n i, i=1,2, n i≤3, said relevant or matching result
Figure FSB00000863069400022
The subcarrier bandwidth of corresponding system is M i, the corresponding synchronizing sequence that network side sent index do
Figure FSB00000863069400031
Said local sequence be end side local that generate or storage, send the corresponding sequence of sequence with known network side primary synchronization channel P-SCH, the subcarrier bandwidth of said relevant perhaps matching result correspondence system and the synchronizing sequence that the map network side is sent;
The more above-mentioned relevant perhaps size of matching result obtains maximum;
According to the corresponding subcarrier bandwidth of said maximum with and synchronizing sequence, obtain the subcarrier bandwidth of system and the synchronizing sequence that this network side sent.
12. synchronizing sequence method of reseptance according to claim 11 is characterized in that,
Said local sequence is that length is that 63 basic sequence indexs are 25,29,34 ZC sequence, and length is that 127 basic sequence indexs are respectively 61,65,66 ZC sequence;
The said relevant or matching result that obtains according to above-mentioned local sequence is corresponding respectively: the subcarrier bandwidth of system is that 15kHz and basic sequence index are 25; The subcarrier bandwidth of system is that 15kHz and basic sequence index are 29, and the subcarrier bandwidth of system is that 15kHz and basic sequence index are 34; The subcarrier bandwidth of system is that 7.5kHz and basic sequence index are 61, and the subcarrier bandwidth of system is that 7.5kHz and basic sequence index are 65, and the subcarrier bandwidth of system is that 7.5kHz and basic sequence index are 66;
Perhaps,
Said local sequence is that length is that 63 basic sequence indexs are 25,29,34 ZC sequence, and length is that 127 basic sequence indexs are respectively 54,56,73 ZC sequence;
The said relevant or matching result that obtains according to above-mentioned local sequence is corresponding respectively: the subcarrier bandwidth of system is that 15kHz and basic sequence index are 25; The subcarrier bandwidth of system is that 15kHz and basic sequence index are 29, and the subcarrier bandwidth of system is that 15kHz and basic sequence index are 34; The subcarrier bandwidth of system is that 7.5kHz and basic sequence index are 54, and the subcarrier bandwidth of system is that 7.5kHz and basic sequence index are 56, and the subcarrier bandwidth of system is that 7.5kHz and basic sequence index are 73.
13. a synchronizing sequence transmitting system is characterized in that, comprises
First sequence is sent subsystem, is used for the system for the different subcarriers width, sends and takies identical frequency resource but length different synchronization sequence;
Said first sequence is sent subsystem, specifically comprises:
First sequence generating unit: being used for for subcarrier width is M 1System, generating n1 length is L1, the basic sequence index is respectively u 11, u 12..., u 1n1The ZC sequence, n1 is a natural number, and n1≤3, a said n1 sequence has high auto-correlation and low their cross correlation, and u 12=L1-u 11, basic sequence index u 11, u 12..., u 1n1Near L1/2;
The first series processing unit: being used for for subcarrier width is M 1System, be that L1, basic sequence index are respectively u with 1 length of said n 11, u 12..., u 1n1The ZC sequence be mapped on the shared running time-frequency resource of primary synchronization channel P-SCH, send said synchronizing sequence;
Second sequence generating unit: being used for for subcarrier width is M 2, M 2=M 1* 2 system, generating n2 length is L2, , the index of basic sequence is respectively u 21, u 22..., u 2n2The ZC sequence, n2 is a natural number, and n2≤3, a said n2 sequence has high auto-correlation and low their cross correlation, and u 22=L2-u 21, basic sequence index u 21, u 22..., u 2n2Near L2/2; And aforementioned length L 1 has low their cross correlation between the ZC sequence of L2;
The second series processing unit: being used for for subcarrier width is M 2, M 2=M 1* 2 system is L2 with 2 length of said n,
Figure FSB00000863069400042
The index of basic sequence is respectively u 21, u 22..., u 2n2The ZC sequence be mapped on the shared running time-frequency resource of P-SCH, send said synchronizing sequence.
CN200710125283A 2007-12-19 2007-12-19 Method, system and device for sending and receiving synchronous information Expired - Fee Related CN101465830B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200710125283A CN101465830B (en) 2007-12-19 2007-12-19 Method, system and device for sending and receiving synchronous information
PCT/CN2008/073589 WO2009082940A1 (en) 2007-12-19 2008-12-19 Method, system and apparatus for transmitting, receiving sync sequence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200710125283A CN101465830B (en) 2007-12-19 2007-12-19 Method, system and device for sending and receiving synchronous information

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201210404717.3A Division CN102916925B (en) 2007-12-19 2007-12-19 Method, system and device for sending and receiving synchronization information

Publications (2)

Publication Number Publication Date
CN101465830A CN101465830A (en) 2009-06-24
CN101465830B true CN101465830B (en) 2012-10-17

Family

ID=40806197

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200710125283A Expired - Fee Related CN101465830B (en) 2007-12-19 2007-12-19 Method, system and device for sending and receiving synchronous information

Country Status (2)

Country Link
CN (1) CN101465830B (en)
WO (1) WO2009082940A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103795668B (en) 2012-11-02 2017-08-18 电信科学技术研究院 A kind of signal processing method, base station, terminal and system
KR101871877B1 (en) * 2014-05-04 2018-06-27 후아웨이 테크놀러지 컴퍼니 리미티드 Synchronization signal sending and receiving method, apparatus, and device
CN106888077B (en) * 2015-12-15 2020-08-11 中兴通讯股份有限公司 Information transmission method and device
EP3410733B1 (en) * 2016-01-27 2021-05-05 Sony Corporation Data processing device and data processing method
CN107634924B (en) 2016-07-18 2020-08-11 中兴通讯股份有限公司 Method and device for sending and receiving synchronization signal and transmission system
CN106507467A (en) * 2016-11-29 2017-03-15 重庆邮电大学 A kind of method of non real-time LTE uplink datas Timing Synchronization
WO2018127222A1 (en) * 2017-01-09 2018-07-12 电信科学技术研究院 Synchronization sequence sending method, and synchronous detection method and device
CN108289070B (en) 2017-01-09 2020-12-11 电信科学技术研究院 Sending method of synchronization sequence, synchronization detection method and device
CN111726841B (en) * 2019-03-22 2022-05-24 启碁科技股份有限公司 Communication method and system for Internet of things

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1348655A (en) * 1999-04-23 2002-05-08 高通股份有限公司 Method and apparatus for transmitting the sync channel message in a multi-carrier communication system
CN101001232A (en) * 2006-01-09 2007-07-18 华为技术有限公司 Sending method and system for synchronous signal
WO2007083762A1 (en) * 2006-01-20 2007-07-26 Matsushita Electric Industrial Co., Ltd. Radio communication base station device and radio communication method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1348655A (en) * 1999-04-23 2002-05-08 高通股份有限公司 Method and apparatus for transmitting the sync channel message in a multi-carrier communication system
CN101001232A (en) * 2006-01-09 2007-07-18 华为技术有限公司 Sending method and system for synchronous signal
WO2007083762A1 (en) * 2006-01-20 2007-07-26 Matsushita Electric Industrial Co., Ltd. Radio communication base station device and radio communication method

Also Published As

Publication number Publication date
CN101465830A (en) 2009-06-24
WO2009082940A1 (en) 2009-07-09

Similar Documents

Publication Publication Date Title
CN101465830B (en) Method, system and device for sending and receiving synchronous information
CN102113397B (en) Base station, terminal, band allocation method, and downlink data communication method
CN101669290B (en) Pilot signal transmitting method, and base station, mobile station and cellular system to which that method is applied
US8340014B2 (en) Method for transmitting and receiving signals using multi-band radio frequencies
RU2008146988A (en) BROADCAST CHANNEL FOR E-UTRA
RU2013140769A (en) INSERT OF A VIRTUAL CARRIER IN THE TRADITIONAL MAJOR MAIN CARRIER OFDM IN THE COMMUNICATION SYSTEM
CN101420261B (en) Synchronous information sending method of OFDM system and cell searching method
CN101636992A (en) Subcarrier spacing identification
CN105208663B (en) Scheduling method and device for unlicensed spectrum communication
CN101098159A (en) Method and apparatus for transmitting and receiving evolved multimedia broadcast and multicast service data
CN101772148B (en) Auxiliary synchronizing channel configuring method and device, and subcarrier mapping method and device
US20100284358A1 (en) Method for Transmitting Preamble for Legacy Support
CN106507367B (en) A kind of transmission method and device of narrowband orthogonal frequency-division multiplex singal
CN102271384B (en) Primary cell searching method for long term evolution (LTE) system
KR20110070814A (en) Apparatus and method for trnasmitting preamble in broadband wireless communication system
KR20090128063A (en) Apparatus and method for employing common control channel and broadcast channel in a broadband wireless communication system with frequency overlay
CN102056087B (en) Systems and methods for network entry management
CN104936264A (en) Method and device for transmitting and detecting cell identity
CN101001236A (en) Parallel training sequence design method
CN101197804B (en) Synchronous processing method and system
CN103378962A (en) Transmission method and device for DRS
CN102916925B (en) Method, system and device for sending and receiving synchronization information
CN101471721A (en) Transmission method, system and equipment of synchronous channel
CN103458529A (en) Method and equipment for accessing wireless communication system
CN101488931A (en) Transmitting, capturing method for OFDM, device and system therefor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20090624

Assignee: APPLE Inc.

Assignor: HUAWEI TECHNOLOGIES Co.,Ltd.

Contract record no.: 2015990000755

Denomination of invention: Method, system and device for sending and receiving synchronization information

Granted publication date: 20121017

License type: Common License

Record date: 20150827

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121017