CN101102149B - Method for carrying system information in synchronization sequence of mobile system downlink synchronization system - Google Patents
Method for carrying system information in synchronization sequence of mobile system downlink synchronization system Download PDFInfo
- Publication number
- CN101102149B CN101102149B CN 200710140502 CN200710140502A CN101102149B CN 101102149 B CN101102149 B CN 101102149B CN 200710140502 CN200710140502 CN 200710140502 CN 200710140502 A CN200710140502 A CN 200710140502A CN 101102149 B CN101102149 B CN 101102149B
- Authority
- CN
- China
- Prior art keywords
- sequence
- synchronization channel
- auxiliary synchronization
- sequence number
- identification information
- 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
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention is concerned with the method of in-phase sequence taking system information, includes: extracts from the sequence number of the assistance in-phase channel sequence m1 and m2 element structure sequence for two: P1={P1(0), P1(1), P1(2), ..., P1(m1-1)} and P2={P2(0), P2(1), P2(2), ..., P2(m2-1)}; the first sending of the wireless frame is noted as (S1(t), S2(t)), the second time as the (S3(t), S4(t)); Extracts the S1(t) to the S4(t) from the P1 and P2, and mapped the section marking information to the S1 (t) to S4 (t) opposite assistance in-phase channel sequence; Insuring the S1 (t) to S4 (t) are different; the assistance in-phase channel sequence of the first sub-frame transmission sequence number are (S1(t), S2(t)) and the sixth sub-frame transmission sequence number are (S3(t), S4(t)). The receiving end is convenient in detection.
Description
Technical field
The present invention relates to the communications field, specifically, relate to the method for synchronizing sequence carrying system information in a kind of mobile communication downlink synchronization system.
Background technology
In mobile communication system, usually there is the requirement of carrying an information aggregate with many groups of special sequences, for example in the synchro system of mobile telecommunication system down link, carries the situation of cell set id information and frame timing information with synchronizing sequence.
The downlink synchronization system Main Function of mobile communication is the function of carrying out Cell searching, its objective is in order to obtain regularly and other relevant system informations.Usually synchronizing channel is divided into two parts: primary synchronization channel (Primary Synchronization Channel, be called for short PSCH) and auxiliary synchronization channel (Secondary Synchronization Channel, be called for short SSCH), auxiliary synchronization channel is generally formed in the frequency domain cascade by the binary sequence of two N length, is carrying cell group identification (ID) information and frame timing information.General first and the 6th subframe in a radio frames will send the SSCH sequence twice, and which subframe transmission frame timing information refers to the SSCH sequence in here.
Suppose that the cell set id information that SSCH need to carry has X, total Y of frame timing information be selected the X*Y bar during then we need to make up at the SSCH short code sequence of two all N length and represent these information.How cell set id information and frame timing information are carried with two SSCH short code sequences by simple mode, make the convenient detection of receiving terminal UE, being easy to SN recovery residential quarter id information and extraction frame timing information by two short codes, is an extremely important and significant technology.
Summary of the invention
Technical problem to be solved by this invention is to provide the method for synchronizing sequence carrying system information in a kind of mobile communication downlink synchronization system, cell set id information and frame timing information are carried with two SSCH short code sequences by simple mode, make the convenient detection of receiving terminal subscriber equipment (UE), and be easy to recover the cell set id information and extract frame timing information.
In order to solve the problems of the technologies described above, the invention provides the method for synchronizing sequence carrying system information in a kind of mobile communication downlink synchronization system, be used in twice auxiliary synchronization channel that radio frames sends, carrying x cell group identification information and frame timing information, said method comprising the steps of:
(1) from the sequence number set of auxiliary synchronization channel sequence, chooses m
1And m
2Individual element is constructed two sequence that is comprised of the sequence number of auxiliary synchronization channel sequence: P
1={ P
1(0), P
1(1), P
1(2) ..., P
1(m
1-1) } and P
2={ P
2(0), P
2(1), P
2(2) ..., P
2(m
2-1) };
(2) determine that the current auxiliary synchronization channel sequence that will send is the auxiliary synchronization channel sequence that sends for the first time or the auxiliary synchronization channel sequence that sends for the second time in a radio frames, if the auxiliary synchronization channel sequence that sends for the first time is sequence number group (S with two auxiliary synchronization channel sequence marks then
1(t), S
2(t)), if the auxiliary synchronization channel sequence that sends for the second time is sequence number group (S with two auxiliary synchronization channel sequence marks then
3(t), S
4(t));
(3) respectively from the described sequence P of step (1)
1And P
2In choose S
1(t) and S
2(t), and with cell group identification information be mapped to S
1(t) and S
2(t) corresponding auxiliary synchronization channel sequence; Respectively from P
1And P
2In choose S
3(t) and S
4(t), and with cell group identification information be mapped to S
3(t) and S
4(t) corresponding auxiliary synchronization channel sequence, and guarantee sequence number group (S
1(t), S
2And sequence number group (S (t))
3(t), S
4(t)) not identical;
(4) transmitting terminal is when sending every frame data, and sending sequence number in first subframe is (S
1(t), S
2(t)) auxiliary synchronization channel sequence set, sending sequence number the 6th subframe is (S
3(t), S
4(t)) auxiliary synchronization channel sequence set.
Further, m in the step (1)
1And m
2Choose and meet the following conditions: m
1(and m
2)≤N, m
1And m
2Relatively prime and m
1* m
2〉=2x.
Preferably, in the step (3) respectively from P
1And P
2In choose S
1(t), S
2(t), and with cell group identification information be mapped to S
1(t) and S
2(t) step of corresponding auxiliary synchronization channel sequence comprises:
Make S
1(t)=P
1(y
1), y wherein
1=t mod m
1, and y
1Satisfy y
1∈ [0, m
1-1];
Make S
2(t)=P
2(y
2), y wherein
2=t mod m
2, and y
2Satisfy y
2∈ [0, m
2-1];
Respectively from P
1And P
2In choose S
3(t) and S
4(t), and with cell group identification information be mapped to S
3(t) and S
4(t) step of corresponding auxiliary synchronization channel sequence comprises:
Make S
3(t)=P
1(y
3), y wherein
3=(t+x) mod m
1, and y
3Satisfy y
3∈ [0, m
1-1];
Make S
4(t)=P
2(y
4), y wherein
4=(t+x) mod m
2, and y
4Satisfy y
4∈ [0, m
2-1];
Wherein, t represents arbitrary cell group identification information, and x cell group identification information forms set X, t ∈ X.
Further, the auxiliary synchronization channel of twice transmission is identical at the carrier position of frequency domain, S
1(t) and S
3(t) corresponding carrier position is identical, S
2(t) and S
4(t) corresponding carrier position is identical.
Further, described method is further comprising the steps of:
(5) receiving terminal receives the auxiliary synchronization channel sequence set, and the sequence set of determining to receive is at the described sequence P of step (1)
1And P
2In sequence number, according to cell group identification information and the frame timing information of the described sequence set of described SN recovery carrying.
Further, the sequence set that receives of determining described in the step (5) is at the described sequence P of step (1)
1And P
2In sequence number, the cell group identification information of carrying according to the described sequence number group of the described recovery of described sequence number and the step of frame timing information comprise:
(5a) the receiving terminal sequence number that detects the sequence set that receives is (S
a, S
b), according to sequence number group (S
a, S
b), find respectively it at P
1And P
2In sequence number y
aAnd y
b, y
a∈ [0, m
1-1], y
b∈ [0, m
2-1];
(5b) according to sequence number y
aAnd y
bDetermine judgment value Z, Z=(y
a* k
1+ y
b* k
2) mod (m
1* m
2), k wherein
1And k
2For constant or pass through calculative determination;
(5c) the number x with judgment value Z and cell group identification information compares to determine frame timing information and cell group identification information, comprising: if Z＜x, frame timing information is the auxiliary synchronization channel sequence that sends for the first time, cell group identification information t=Z, (S
a, S
b) be (S
1(t), S
2(t)); If Z 〉=x, frame timing information are the auxiliary synchronization channel sequence that sends for the second time, cell group identification information t=Z-x, (S
a, S
b) be (S
3(t), S
4(t)).
Further, determine k described in the step (5b)
1And k
2Step comprise:
Make M
i=(m
1* m
2)/m
i, i=1,2; Find M
i', make it satisfied (M
i* M
i') mod m
i=1, i=1,2; Make k
i=M
i* M
i', i=1,2.
Preferably, in the step (3) respectively from P
1And P
2In choose S
1(t), S
2(t), and with cell group identification information be mapped to S
1(t) and S
2(t) step of corresponding auxiliary synchronization channel sequence comprises:
Make S
1(t)=P
1(y
1), y wherein
1=(t+x) mod m
1, and y
1Satisfy y
1∈ [0, m
1-1];
Make S
2(t)=P
2(y
2), y wherein
2=(t+x) mod m
2, and y
2Satisfy y
2∈ [0, m
2-1];
Respectively from P
1And P
2In choose S
3(t) and S
4(t), and with cell group identification information be mapped to S
3(t) and S
4(t) step of corresponding auxiliary synchronization channel sequence comprises:
Make S
3(t)=P
1(y
3), y wherein
3=t mod m
1, and y
3Satisfy y
3∈ [0, m
1-1];
Make S
4(t)=P
2(y
4), y wherein
4=t mod m
2, and y
4Satisfy y
4∈ [0, m
2-1];
Wherein, t represents arbitrary cell group identification information, and x cell group identification information forms set X, t ∈ X.
The cell set id information of this moment and the restoration methods of frame timing information comprise: when Z＜x, frame timing information is the SSCH sequence that sends for the second time, and cell set id information t=Z-x is when Z 〉=x, frame timing information is the SSCH sequence that sends for the first time, cell set id information t=Z.
The present invention is by selecting the sequence number of SSCH short code sequence, send after cell set id information and frame timing information be mapped to two selected SSCH short code sequences, make the convenient detection of receiving terminal subscriber equipment (UE), be easy to SN recovery cell set id information and extraction frame timing information by two short codes.
Description of drawings
Fig. 1 is the wireless communication system descending synchronous signal channel frame structure schematic diagram of mark of the present invention;
Fig. 2 is the method flow diagram of synchronizing sequence carrying system information of the present invention;
Fig. 3 is the method flow diagram of the present invention's recovery system information from the SSCH short code that receives.
Embodiment
The present invention is by selecting element from available auxiliary synchronization channel sequence number set, structure auxiliary synchronization channel sequence number sequence, and judge it is the first time or the auxiliary synchronization channel that sends for the second time, respectively two kinds of situations are selected the short code sequence number of two auxiliary synchronization channel SSCH of carrying system information, and system information is mapped to the corresponding auxiliary synchronization channel sequence of selected sequence number.At receiving terminal, the SN recovery cell set id information by two short codes receiving and extract frame timing information.
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.
With reference to shown in Figure 1, be the wireless communication system descending synchronous signal channel frame structure schematic diagram of mark of the present invention, can find out that the SSCH sequence is respectively (S in the sequence number combination that first subframe and the 6th subframe send twice, twice transmission altogether
1(t), S
2(t)), (S
3(t), S
4(t)).
With reference to shown in Figure 2, be the method flow diagram of synchronizing sequence carrying system information of the present invention, illustrated that system information is mapped to the method for two SSCH short codes.
The sequence number set of supposing all operational sequences is Y, wherein includes N bar sequence, i.e. Y={0, and 1,2 ..., N-1}.All the cell set id informations set that need to carry is X, wherein comprises x information, i.e. X={0, and 1,2 ..., x-1}.Arbitrary cell set id information t (t ∈ X) and frame timing information are by sequence S among the X
1(t), S
2(t), S
3(t), S
4(t) carry.Will launch twice the SSCH sequence in the radio frames, article one short code sequence number that the SSCH sequence of supposing to send is for the first time used is S
1(t), the second sequence number is S
2(t), article one short code sequence number that the SSCH sequence that sends is for the second time used is S
3(t), the second sequence number is S
4(t).T in the sequence number represents that corresponding short code sequence has carried the cell set id information.The SSCH of twice transmission is identical at the carrier position of frequency domain, S
1(t) and S
3(t) corresponding carrier position is identical, S
2(t) and S
4(t) corresponding carrier position is identical.
Cell set id information t and frame timing information are mapped to S
1(t), S
2(t), S
3(t), S
4(t) step is as described below:
Step 201: from the sequence number set of operational auxiliary synchronization channel sequence, choose m
1And m
2Individual element is constructed two sequence that is comprised of the sequence number of auxiliary synchronization channel sequence: P
1={ P
1(0), P
1(1), P
1(2) ..., P
1(m
1-1) } and P
2={ P
2(0), P
2(1), P
2(2) ..., P
2(m
2-1) };
m
i(m
1And m
2) choose and will satisfy following a few rule:
●m
i≤N；
● m
1And m
2Relatively prime;
●m
1*m
2≥2x；
Step 202: determine that the current auxiliary synchronization channel sequence that will send is the auxiliary synchronization channel sequence that sends for the first time or the auxiliary synchronization channel sequence that sends for the second time in a radio frames, if the auxiliary synchronization channel sequence that sends for the first time is sequence number group (S with two auxiliary synchronization channel sequence marks then
1(t), S
2(t)), if the auxiliary synchronization channel sequence that sends for the second time is sequence number group (S with two auxiliary synchronization channel sequence marks then
3(t), S
4(t));
Step 203: respectively from P
1And P
2In choose S
1(t) and S
2(t), and with the cell set id information be mapped to S
1(t) and S
2(t) corresponding auxiliary synchronization channel sequence; Respectively from P
1And P
2In choose S
3(t) and S
4(t), and with the cell set id information be mapped to S
3(t) and S
4(t) corresponding auxiliary synchronization channel sequence, and guarantee sequence number group (S
1(t), S
2And sequence number group (S (t))
3(t), S
4(t)) not identical;
The cell set id information is mapped to S
1(t) and S
2(t) and S
3(t), S
4(t) step of corresponding auxiliary synchronization channel sequence is:
Calculate S
1(t)=P
1(y
1), y
1=t mod m
1, y
1∈ [0, m
1-1] (1),
S
2(t)＝P
2(y
2)，y
2＝t mod m
2，y
2∈[0，m
2-1] (2)，
S
3(t)＝P
1(y
3)，y
3＝(t+x)mod m
1，y
3∈[0，m
1-1] (3)，
S
4(t)＝P
2(y
4)，y
4＝(t+x)mod m
2，y
4∈[0，m
2-1] (4)。
Above-mentioned formula (1) and (2) are one group, for calculating (S
1(t), S
2(t)) formula, formula (3) and formula (4) are one group, for calculating (S
3(t), S
4(t)) formula, two groups of formula can exchange, and namely calculate (S
1(t), S
2(t)) formula and calculating (S
3(t), S
4(t)) formula is interchangeable, can reach Expected Results of the present invention equally.
Step 204: transmitting terminal is when sending every frame data, and sending sequence number in first subframe is (S
1(t), S
2(t)) auxiliary synchronization channel sequence set, sending sequence number the 6th subframe is (S
3(t), S
4(t)) auxiliary synchronization channel sequence set.
Step 205: receiving terminal receives the auxiliary synchronization channel sequence set, and the sequence set of determining to receive is at the described sequence P of step (1)
1And P
2In sequence number, according to cell set id information and the frame timing information of the described sequence set of described SN recovery carrying.
With reference to shown in Figure 3, be the method flow diagram of the present invention's recovery system information from the SSCH short code that receives, illustrated how by the sequence number group (S that receives
a, S
b) recover its entrained cell set id information and the flow process of frame timing information.
By receiving sequence number group (S
a, S
b) recover the entrained cell set id information t of the corresponding auxiliary synchronization channel sequence of this sequence number group and frame timing information step as described below:
Step 301: the sequence number that receiving terminal detects the sequence set that receives is (S
a, S
b), according to sequence number group (S
a, S
b), find respectively S
aAt P
1In sequence number y
a, S
bAt P
2In sequence number y
b, specifically, according to S
a=P
1(y
a), S
b=P
2(y
b) determine y
aAnd y
b, because P
1In y
aIndividual element is S
a, just can determine that this element is at sequence P
1In sequence number y
a, in like manner, P
2In y
aIndividual element is S
b, just can determine that this element is at sequence P
2In sequence number y
b, y wherein
a∈ [0, m
1-1], y
b∈ [0, m
2-1];
Step 302: according to sequence number y
aAnd y
bDetermine judgment value Z, Z=(y
a* k
1+ y
b* k
2) mod (m
1* m
2), k wherein
1And k
2For constant or pass through calculative determination;
Described definite k
1And k
2Step comprise:
Make M
i=(m
1* m
2)/m
i, i=1,2; Find M
i', make it satisfied (M
i* M
i') mod m
i=1, i=1,2; Calculate k
i=M
i* M
i', i=1,2.
Step 303: the number x of judgment value Z and cell set id information is compared to determine frame timing information, comprising: if Z＜x, frame timing information is the SSCH sequence that sends for the first time, i.e. cell set id information t=Z, (S
a, S
b) be (S
1(t), S
2(t)); If Z 〉=x, frame timing information are the SSCH sequence that sends for the second time, i.e. cell set id information t=Z-x, (S
a, S
b) be (S
3(t), S
4(t)).
It is pointed out that if in above-mentioned steps 203, will calculate (S
1(t), S
2(t)) formula and calculating (S
3(t), S
4(t)) formula exchanges, then the cell set id information of this moment and the restoration methods of frame timing information are just in time with top opposite, namely when Z＜x, frame timing information is the SSCH sequence that sends for the second time, cell set id information t=Z-x, when Z 〉=x, frame timing information is the SSCH sequence that sends for the first time, cell set id information t=Z.
According to above step, can obtain sequence set entrained cell set id information t and frame timing information.
Since in real system is used, the sequence number group quantity N of the required cell set id information quantity X that carries and use, and the sequence number m that uses in each sequence number group
iAll be the number of determining, thus parameter k
iAll determine, thus in the practical application by sequence number group (S
a, S
b) recovery system information do not need to calculate k
iValue, for reducing complexity, be very effective.
Come technical solution of the present invention is carried out exemplary explanation below by the example in the concrete application.
For more detailed description application process of the present invention, simply be without loss of generality and establish and among the cell set id information X of expression 170 elements to be arranged by above-mentioned general case, be i.e. x=170, X={0,1,2, ..., 169}, the SSCH sequence short code of use has 31, be N=31, Y={0,1,2, ..., 30}.
At first determine operation parameter m
1=19, m
2=18, P
iBuilding method as follows, P
1=0,1,2 ..., 18}, P
2=0,1,2 ..., 17}.
Determine that two short codes that send are S
1(t), S
2(t) or S
3(t), S
4(t).Mainly consider the SSCH that is positioned at the first subframe of current transmission or be positioned at the SSCH of the 6th subframe in the words of transmitter side.Send for the first time corresponding (S if will send the SSCH that is positioned at the first subframe
1(t), S
2(t)), the words of the 6th subframe are exactly to send for the second time, corresponding (S
3(t), S
4(t))).Hypothesis is the SSCH sequence that sends for the second time in this example, uses S
3(t), S
4(t), utilize formula (3) (4) to calculate:
S
3(t)＝P
1(y
3)，y
3＝(t+170)mod19，y
3∈[0，18]，
S
4(t)＝P
2(y
4)，y
4＝(t+170)mod18，y
4∈[0，17]。
Be (4,13), i.e. S if receive sequence number
a=4, S
b=13.Utilize above-mentioned series of steps to calculate:
1. calculate G=m
1* m
2=19*18=342;
2. calculate M
1=G/m
1=342/19=18, M
2=G/m
2=342/18=19;
3. find M
i', make it satisfied (M
i* M
i') mod m
i=1, M here
1'=18, M
2'=1;
4. calculate k
1=M
1* M
1'=18*18=324, k
2=M
2* M
2'=19*1=19;
5. according to Receive sequence number group (4,13), find respectively it at P
1And P
2In sequence number y
aAnd y
b, obtain y
a=4, y
b=13;
6.Z＝(y
a*k
1+y
b*k
2)mod G＝(4*324+13*19)mod 342＝175；
7. can find out 175＞170, cell set id information t=Z-x=175-170=5, frame timing information are the SSCH sequence that sends for the second time, (S
a, S
b) be (S
3(t), S
4(t)).
Those skilled in the art that should be understood that the above only is simple embodiment of the present invention, are not to limit practical range of the present invention; Every equivalence of doing according to the present invention changes and revises, and is all contained by claim of the present invention.
Claims (9)
1. the method for synchronizing sequence carrying system information in the mobile communication downlink synchronization system is used for carrying x cell group identification information and frame timing information in twice auxiliary synchronization channel that radio frames sends, and it is characterized in that, said method comprising the steps of:
(1) from the sequence number set of auxiliary synchronization channel sequence, chooses m
1And m
2Individual element is constructed two sequence that is comprised of the sequence number of auxiliary synchronization channel sequence: P
1={ P
1(0), P
1(1), P
1(2) ..., P
1(m
1-1) } and P
2={ P
2(0), P
2(1), P
2(2) ..., P
2(m
2-1) };
(2) determine that the current auxiliary synchronization channel sequence that will send is the auxiliary synchronization channel sequence that sends for the first time or the auxiliary synchronization channel sequence that sends for the second time in a radio frames, if the auxiliary synchronization channel sequence that sends for the first time is sequence number group (S with two auxiliary synchronization channel sequence marks then
1(t), S
2(t)), if the auxiliary synchronization channel sequence that sends for the second time is sequence number group (S with two auxiliary synchronization channel sequence marks then
3(t), S
4(t));
(3) respectively from the described sequence P of step (1)
1And P
2In choose S
1(t) and S
2(t), and with cell group identification information be mapped to S
1(t) and S
2(t) corresponding auxiliary synchronization channel sequence; Respectively from P
1And P
2In choose S
3(t) and S
4(t), and with cell group identification information be mapped to S
3(t) and S
4(t) corresponding auxiliary synchronization channel sequence, and guarantee sequence number group (S
1(t), S
2And sequence number group (S (t))
3(t), S
4(t)) not identical;
(4) transmitting terminal is when sending every frame data, and sending sequence number in first subframe is (S
1(t), S
2(t)) auxiliary synchronization channel sequence set, sending sequence number the 6th subframe is (S
3(t), S
4(t)) auxiliary synchronization channel sequence set;
Wherein, t represents arbitrary cell group identification information, and x cell group identification information forms set X, t ∈ X.
2. the method for claim 1 is characterized in that, m in the step (1)
1And m
2Choose and meet the following conditions: m
1≤ N and m
2≤ N, m
1And m
2Relatively prime and m
1* m
2〉=2x;
Wherein, establish the sequence number set of all operational sequences for Y, wherein include N bar sequence, Y={0,1,2 ..., N-1}.
3. the method for claim 1 is characterized in that, in the step (3) respectively from P
1And P
2In choose S
1(t), S
2(t), and with cell group identification information be mapped to S
1(t) and S
2(t) step of corresponding auxiliary synchronization channel sequence comprises:
Make S
1(t)=P
1(y
1), y wherein
1=tmodm
1, and y
1Satisfy y
1∈ [0, m
1-1];
Make S
2(t)=P
2(y
2), y wherein
2=tmodm
2, and y
2Satisfy y
2∈ [0, m
2-1];
Respectively from P
1And P
2In choose S
3(t) and S
4(t), and with cell group identification information be mapped to S
3(t) and S
4(t) step of corresponding auxiliary synchronization channel sequence comprises:
Make S
3(t)=P
1(y
3), y wherein
3=(t+x) modm
1, and y
3Satisfy y
3∈ [0, m
1-1];
Make S
4(t)=P
2(y
4), y wherein
4=(t+x) modm
2, and y
4Satisfy y
4∈ [0, m
2-1].
4. the method for claim 1 is characterized in that, in the step (3) respectively from P
1And P
2In choose S
1(t), S
2(t), and with cell group identification information be mapped to S
1(t) and S
2(t) step of corresponding auxiliary synchronization channel sequence comprises:
Make S
1(t)=P
1(y
1), y wherein
1=(t+x) modm
1, and y
1Satisfy y
1∈ [0, m
1-1];
Make S
2(t)=P
2(y
2), y wherein
2=(t+x) modm
2, and y
2Satisfy y
2∈ [0, m
2-1];
Respectively from P
1And P
2In choose S
3(t) and S
4(t), and with cell group identification information be mapped to S
3(t) and S
4(t) step of corresponding auxiliary synchronization channel sequence comprises:
Make S
3(t)=P
1(y
3), y wherein
3=tmodm
1, and y
3Satisfy y
3∈ [0, m
1-1];
Make S
4(t)=P
2(y
4), y wherein
4=tmodm
2, and y
4Satisfy y
4∈ [0, m
2-1].
5. the method for claim 1 is characterized in that, the auxiliary synchronization channel of twice transmission is identical at the carrier position of frequency domain, S
1(t) and S
3(t) corresponding carrier position is identical, S
2(t) and S
4(t) corresponding carrier position is identical.
6. such as claim 1,2, the described method of 3 or 5 any one, it is characterized in that, described method is further comprising the steps of:
(5) receiving terminal receives the auxiliary synchronization channel sequence set, and the sequence set of determining to receive is at the described sequence P of step (1)
1And P
2In sequence number, according to cell group identification information and the frame timing information of the described sequence set of described SN recovery carrying.
7. method as claimed in claim 4 is characterized in that, described method is further comprising the steps of:
(5) receiving terminal receives the auxiliary synchronization channel sequence set, and the sequence set of determining to receive is at the described sequence P of step (1)
1And P
2In sequence number, according to cell group identification information and the frame timing information of the described sequence set of described SN recovery carrying.
8. method as claimed in claim 6 is characterized in that, the sequence set that determining described in the step (5) receives is at the described sequence P of step (1)
1And P
2In sequence number, the cell group identification information of carrying according to the described sequence set of described SN recovery and the step of frame timing information comprise:
(5a) the receiving terminal sequence number that detects the sequence set that receives is (S
a, S
b), according to sequence number group (S
a, S
b), find respectively it at P
1And P
2In sequence number y
aAnd y
b, y
a∈ [0, m
1-1], y
b∈ [0, m
2-1];
(5b) according to sequence number y
aAnd y
bDetermine judgment value Z, Z=(y
a* k
1+ y
b* k
2) mod (m
1* m
2), k wherein
1And k
2For constant or pass through calculative determination;
(5c) the number x with judgment value Z and cell group identification information compares to determine frame timing information and cell group identification information, comprising: if Z＜x, frame timing information is the auxiliary synchronization channel sequence that sends for the first time, cell group identification information t=Z, (S
a, S
b) be (S
1(t), S
2(t)); If Z 〉=x, frame timing information are the auxiliary synchronization channel sequence that sends for the second time, cell group identification information t=Z-x, (S
a, S
b) be (S
3(t), S
4(t)).
9. method as claimed in claim 8 is characterized in that, determines k described in the step (5b)
1And k
2Step comprise:
Make M
i=(m
1* m
2)/m
i, i=1,2; Find M '
i, make it satisfied (M
i* M '
i) modm
i=1, i=1,2; Make k
i=M
i* M '
i, i=1,2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710140502 CN101102149B (en) | 2007-08-10 | 2007-08-10 | Method for carrying system information in synchronization sequence of mobile system downlink synchronization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710140502 CN101102149B (en) | 2007-08-10 | 2007-08-10 | Method for carrying system information in synchronization sequence of mobile system downlink synchronization system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101102149A CN101102149A (en) | 2008-01-09 |
| CN101102149B true CN101102149B (en) | 2013-01-16 |
Family
ID=39036269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710140502 Expired - Fee Related CN101102149B (en) | 2007-08-10 | 2007-08-10 | Method for carrying system information in synchronization sequence of mobile system downlink synchronization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101102149B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222275B (en) * | 2008-01-22 | 2011-06-22 | 中兴通讯股份有限公司 | Method for synchronous sequence carrying system information in descending synchronous system and its receiving method |
| CN101753514B (en) * | 2008-12-12 | 2013-05-01 | 中兴通讯股份有限公司 | Synchronous communication channel realization method, synchronous accession method and mobile terminal |
| CN101938813B (en) * | 2009-06-30 | 2013-02-27 | 中兴通讯股份有限公司 | Method for combining secondary synchronization signal detection and synchronous frame timing |
| CN102387582B (en) * | 2010-08-31 | 2014-11-26 | 联芯科技有限公司 | Detection method and device for cell group numbers of secondary synchronization sequences of LTE (long term evolution) system |
| WO2018119563A1 (en) * | 2016-12-26 | 2018-07-05 | Telefonaktiebolaget Lm Ericsson (Publ) | A method to implicitly indicate system information in nr |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1533196A (en) * | 2003-03-26 | 2004-09-29 | 华为技术有限公司 | Method for subzone searching in time division duplex system |
| CN1595861A (en) * | 2003-09-11 | 2005-03-16 | 凯明信息科技股份有限公司 | A synchronization apparatus and method for CDMA mobile communication system |
| CN101001233A (en) * | 2006-01-12 | 2007-07-18 | 北京三星通信技术研究有限公司 | Method and equipment for transmitting downlink synchronous channel |
-
2007
- 2007-08-10 CN CN 200710140502 patent/CN101102149B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1533196A (en) * | 2003-03-26 | 2004-09-29 | 华为技术有限公司 | Method for subzone searching in time division duplex system |
| CN1595861A (en) * | 2003-09-11 | 2005-03-16 | 凯明信息科技股份有限公司 | A synchronization apparatus and method for CDMA mobile communication system |
| CN101001233A (en) * | 2006-01-12 | 2007-07-18 | 北京三星通信技术研究有限公司 | Method and equipment for transmitting downlink synchronous channel |
Non-Patent Citations (2)
| Title |
|---|
| 3rd Generation Partnership Project.Physical layer procedures (FDD)(Release 1999).《3GPP TS 25.214 V3.12.0》.2003,第1-52页. * |
| Yingming Tsai等.Cell Search in 3GPP Long Term Evolution Systems.《IEEE VEHICULAR TECHNOLOGY MAGAZINE》.2007,第23-29页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101102149A (en) | 2008-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10674462B2 (en) | Facilitating synchronization between a base station and a user equipment | |
| CN101102149B (en) | Method for carrying system information in synchronization sequence of mobile system downlink synchronization system | |
| NO20090533L (en) | Capture in frequency-shared multi-access systems | |
| CN101682403B (en) | Method and apparatus for transmitting/receiving pilot signal in a wireless communication system | |
| ATE536056T1 (en) | METHOD FOR PROVIDING LOCATION-BASED SERVICES TO SUBSCRIBER TERMINALS OF A RADIO COMMUNICATIONS SYSTEM | |
| CN101114869B (en) | System message block scheduling method and device in UMTS system | |
| CN104244401A (en) | Satellite timing service-based wireless communication method and satellite timing service-based wireless communication device | |
| WO2007145486A3 (en) | Method of supporting handover in a mobile communication system | |
| CN101365227B (en) | Method, apparatus and mobile terminal acquiring synchronous timing of GSM adjacent cells | |
| CN101507234A (en) | System and method for sub-frame id and frame boundary detection in long term evolution | |
| CN109565770A (en) | For synchronous method and apparatus | |
| CN102036323A (en) | Mobile communication system, basic station and mobile terminal | |
| CN101132231B (en) | Method for reducing neighbor area interference in wireless communication descending synchronous signal channel | |
| RU2008146095A (en) | METHOD FOR COORDINATING AGREEMENT DURING TIME IN A WIRELESS LOCAL NETWORK AND A DEVICE FOR ITS IMPLEMENTATION | |
| DE602004015283D1 (en) | SECURE TRANSPORT TRANSMISSION IN A MOBILE COMMUNICATION SYSTEM | |
| WO2018184688A1 (en) | Transmitter and receiver communication device for a wireless communication network | |
| EP1475932A3 (en) | Interferer detection and channel estimation for wireless communication networks | |
| CN102149188A (en) | Method for synchronizing nodes | |
| CN108574530B (en) | Data transmitting and receiving method and device and multichannel EPON system | |
| CN101222275B (en) | Method for synchronous sequence carrying system information in descending synchronous system and its receiving method | |
| US8144701B2 (en) | Method and device of frame number encoding for synchronization of electronic devices | |
| EP1215829A2 (en) | Circuit and method for frame timing detection, cell search apparatus and portable wireless terminal comprising said cell search apparatus | |
| CN101102150B (en) | Method for reducing adjacent area interference in wireless communication downlink synchronization channel | |
| CN104023386B (en) | Transmitting terminal, receiving terminal and its frame synchornization method, frame synchronization system | |
| CN101166365B (en) | A system information mapping method in mobile communication downlink synchronization system |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20190810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |