Back to results
US 7,010,071 B1Granted
Method of generating and/or detecting synchronization sequences, synchronization method, transmitter unit and receiver unit
AssigneeSiemens Aktiengesellschaft
InventorsJuergen Michel, Bernhard Raaf
Life of this patent
Estimating the term…
Abstract
Method for forming and/or determining a synchronization sequence, a synchronization method, a transmitting unit and a receiving unit, the formation of synchronization sequences, which are based on partial signal sequences, includes a second partial signal sequence being repeated and modulated in the process by a first partial signal sequence.
Claims16
A method for synchronizing a base station with a mobile station, the method comprising the steps of:
- forming a synchronization sequence y(i) of length n, to be emitted by the base station, in accordance with the following relationship from a first constituent sequence x1 of length n1 and a second constituent sequence x2 of length n2:
- y(i)=x2(i mod n2)*x1(i div n2) for i=0 . . . (n1*n2)−1;
- and
- forming at least one constituent sequence x1 or x2 in accordance with the following relationship from a third constituent sequence x3 of length n3 and a fourth constituent sequence x4 of length n4:
- x1(i)=x4(i mod s+s*(i div sn3))*x3((i div s)mod n3), i=0 . . . (n3*n4)−1;
- or
- x2(i)=x4(i mod s+s*(i div sn3))*x3((i div s)mod n3), i=0 . . . (n3*n4)−1.
4 more elements
A transmitting unit comprising:
- a part for storing or forming a synchronization sequence y(i), which can be formed in accordance with the following relationship from a first constituent sequence x1 of length n1 and a second constituent sequence x2 of length n2:
- y(i)=x2(i mod n2)*x1(i div n2) for i=0 . . . (n1*n2)−1, wherein it is further possible to form at least one constituent sequence x1 or x2 in accordance with the following relationship from a third constituent sequence x3 of length n3 and a fourth constituent sequence x4 of length n4:
- x1(i)=x4(i mod s+s*(i div sn3))*x3((i div s)mod n3), i=0 . . . (n3*n4)−1;
- or
- x2(i)=x4(i mod s+s*(i div sn3))*x3((i div s)mod n3), i=0 . . . (n3*n4)−1, and
- a part for emitting the synchronization sequence y(i) for synchronization with a receiving unit.
3 more elements
A mobile station comprising:
- a part for receiving a received signal sequence;
- and
- a part for determining a synchronization sequence y(i), which can be formed in accordance with the following relationship from a first constituent sequence x1 of length n1 and a second constituent sequence x2 of length n2:
- y(i)=x2(i mod n2)*x1(i div n2) for i=0 . . . (n1*n2)−1, wherein it is further possible to form at least one constituent sequence x1 or x2 in accordance with the following relationship from a third constituent sequence x3 of length n3 and a fourth constituent sequence x4 of length n4:
- x1(i)=x4(i mod s+s*(i div sn3))*x3((i div s)mod n3), i=0 . . . (n3*n4)−1;
- or
- x2(i)=x4(i mod s+s*(i div sn3))*x3((i div s)mod n3), i=0 . . . (n3*n4)−1.
4 more elements
A method for transmitting and receiving synchronization sequences, the method comprising the steps of:
- composing a synchronization sequence from two constituent sequences, wherein said synchronization sequence is structured having the following characteristics:
- y(i)=x2(i mod s+s*(i div sn1))*x1((i div s)mod n1), i=0 . . . (n1*n2)−1,
- where y(i) is the synchronization sequence having a length of (n1*n2) from two constituent sequences x1 and x2 of length n1 and n2;
- repeating a first constituent sequence in accordance with the number of elements of a second constituent sequence;
- modulating all the elements of a specific repetition of the first constituent sequence with the corresponding element of the second constituent sequences;
- and
- mutually interleaving the repetitions of the first constituent sequence.
4 more elements
Dependencies are inferred from the claim text.