Abstract
A method for synchronizing a base station to a mobile station includes transmitting a signal sequence K(i) of length n from the base station to the mobile station. The signal sequence K(i) is formed by repeating a second signal sequence element K 2(k) of length n2 n1 times. The second signal sequence is modulated with a first signal sequence element K1(j) of length n1. In the method n1 is equal to n2 and i j and k are integers.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 3G | 21/12/2004 | ISLD-200502-002 | SIEMENS AG |
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| 3G | 21/12/2004 | ISLD-200502-002 | SIEMENS AG |
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| AU767521B2 | 3G | 21/12/2004 | ISLD-200502-002 | SIEMENS AG | Yes | Basis Patent | ||||
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Technologies
Multiple access
Product
Use Cases
Wireless communication
Services
Claim
1. A method for synchronizing a base station to a mobile station, comprising:
transmitting a signal sequence K(i) of length n from the base station to the mobile station in a synchronization channel, the mobile station using the signal sequence K(i) to determine a timing of the base station, the signal sequence K(i) being obtainable by:
repeating, n1 times, a second signal sequence element K2(k) of length n2 to form a second signal sequence, the second signal sequence being modulated with first signal sequence elements K1(j) of length n1;
wherein n1 is equal to n2, and i, j and k are integers; and
achieving timeslot synchronization between the base station and the mobile station using the synchronization channel.', 'transmitting a signal sequence K(i) of length n from the base station to the mobile station in a synchronization channel, the mobile station using the signal sequence K(i) to determine a timing of the base station, the signal sequence K(i) being obtainable by:
repeating, n1 times, a second signal sequence element K2(k) of length n2 to form a second signal sequence, the second signal sequence being modulated with first signal sequence elements K1(j) of length n1;
wherein n1 is equal to n2, and i, j and k are integers; and', 'repeating, n1 times, a second signal sequence element K2(k) of length n2 to form a second signal sequence, the second signal sequence being modulated with first signal sequence elements K1(j) of length n1;', 'wherein n1 is equal to n2, and i, j and k are integers; and', 'achieving timeslot synchronization between the base station and the mobile station using the synchronization channel.
2. The method of claim 1, wherein n is equal to 256, n1 is equal to 16, and n2 is equal to 16.
3. The method of claim 1, further comprising forming the signal sequence K(i) by modulating the second signal sequence as follows: K(i)=K2 (i mod n2)*K1 (i div n2).
4. The method of claim 1, further comprising:
receiving, at the mobile station, a received signal sequence E(l), the signal sequence K(i) being contained in the received signal sequence E(l), the signal sequence K(i) being determined in the mobile station by obtaining a correlation sum S using sections of the received signal sequence E(l);
wherein the mobile station determines the correlation sum S by:
determining a partial correlation sum sequence TS(z) of the second signal sequence using corresponding parts of the received signal sequence E(l);
selecting n1 elements of the partial correlation sum sequence TS(z); and
multiplying selected elements of the partial correlation sum sequence TS(z) by first signal sequence elements K1(j).', 'receiving, at the mobile station, a received signal sequence E(l), the signal sequence K(i) being contained in the received signal sequence E(l), the signal sequence K(i) being determined in the mobile station by obtaining a correlation sum S using sections of the received signal sequence E(l);', 'wherein the mobile station determines the correlation sum S by:
determining a partial correlation sum sequence TS(z) of the second signal sequence using corresponding parts of the received signal sequence E(l);
selecting n1 elements of the partial correlation sum sequence TS(z); and
multiplying selected elements of the partial correlation sum sequence TS(z) by first signal sequence elements K1(j).', 'determining a partial correlation sum sequence TS(z) of the second signal sequence using corresponding parts of the received signal sequence E(l);', 'selecting n1 elements of the partial correlation sum sequence TS(z); and', 'multiplying selected elements of the partial correlation sum sequence TS(z) by first signal sequence elements K1(j).
5. The method of claim 4, wherein selecting the n1 elements comprises selecting n1 in each of n2-th elements of the partial correlation sum sequence TS(z).
6. The method of claim 1, further comprising:
determining, in the mobile station, the signal sequence K(i) using information about the first signal sequence element K1(j) and the second signal sequence element K2(k).', 'determining, in the mobile station, the signal sequence K(i) using information about the first signal sequence element K1(j) and the second signal sequence element K2(k).
7. The method of claim 6, further comprising:
receiving, at the mobile station, a received signal sequence E(l), the signal sequence K(i) being contained in the received signal sequence E(l), the signal sequence K(i) being determined in the mobile station by obtaining a correlation sums S using sections of the received signal sequence E(l);
wherein the mobile station determines the correlation sum S by:
determining a partial correlation sum sequence TS(z) for first signal sequence elements K1(j) using selected elements of the received signal sequence E(l); and
multiplying n2 elements of the partial correlation sum sequence TS(z) by second signal sequence elements K2(k).', 'receiving, at the mobile station, a received signal sequence E(l), the signal sequence K(i) being contained in the received signal sequence E(l), the signal sequence K(i) being determined in the mobile station by obtaining a correlation sums S using sections of the received signal sequence E(l);', 'wherein the mobile station determines the correlation sum S by:
determining a partial correlation sum sequence TS(z) for first signal sequence elements K1(j) using selected elements of the received signal sequence E(l); and', 'determining a partial correlation sum sequence TS(z) for first signal sequence elements K1(j) using selected elements of the received signal sequence E(l); and', 'multiplying n2 elements of the partial correlation sum sequence TS(z) by second signal sequence elements K2(k).
8. The method of claim 7, further comprising selecting n1 in each of n2-th elements of the received signal sequence E(l) in order to calculate a partial correlation sum TS.
9. The method of claim 6, further comprising:
storing partial correlation sums TS in the mobile station; and
using the partial correlation sums in order to determine a further correlation sum S.', 'storing partial correlation sums TS in the mobile station; and', 'using the partial correlation sums in order to determine a further correlation sum S
10. A base station comprising:
a transmitter to transmit a signal sequence K(i) of length n from the base station to a mobile station in a synchronization channel; and
a processing device to obtain the signal sequence K(i) by repeating, n1 times, a second signal sequence element K2(k) of length n2, the second signal sequence element K2(k) being modulated with a first signal sequence element K1(j) of length n1, where n1 and n2 are equal, and j and k are integers;
wherein timeslot synchronization is achieved between the base station and a mobile station using the synchronization channel.', 'a transmitter to transmit a signal sequence K(i) of length n from the base station to a mobile station in a synchronization channel; and', 'a processing device to obtain the signal sequence K(i) by repeating, n1 times, a second signal sequence element K2(k) of length n2, the second signal sequence element K2(k) being modulated with a first signal sequence element K1(j) of length n1, where n1 and n2 are equal, and j and k are integers;', 'wherein timeslot synchronization is achieved between the base station and a mobile station using the synchronization channel
11. A mobile station comprising:
a receiver to receive a signal sequence K(i) of length n from a base station in a synchronization channel;
wherein the signal sequence K(i) is obtained by repeating, n1 times, a second signal sequence element K2(k) of length n2, the second signal sequence element K2(k) being modulated with a first signal sequence element K1(j) of length n1, where n1 and n2 are equal, and j and k are integers; and
wherein timeslot synchronization is achieved between the base station and a mobile station using the synchronization channel.', 'a receiver to receive a signal sequence K(i) of length n from a base station in a synchronization channel;', 'wherein the signal sequence K(i) is obtained by repeating, n1 times, a second signal sequence element K2(k) of length n2, the second signal sequence element K2(k) being modulated with a first signal sequence element K1(j) of length n1, where n1 and n2 are equal, and j and k are integers; and', 'wherein timeslot synchronization is achieved between the base station and a mobile station using the synchronization channel.12. A signal sequence K(i) of length n, the signal sequence being stored in an information carrier, the signal sequence K(i) being obtainable by:
repeating, n1 times, a second sequence element K2(k) of length n2; and
modulating a first sequence element K1(j) of length n1 into repeated second sequence elements K2(k);
wherein n1 is equal to n2, and i, j and k are integers;
wherein the signal sequence K(i) is usable by a mobile station to determine a timing of the base station; and
wherein timeslot synchronization is achievable between the base station and the mobile station using the signal sequence K(i) transmitted over a synchronization channel.', 'repeating, n1 times, a second sequence element K2(k) of length n2; and', 'modulating a first sequence element K1(j) of length n1 into repeated second sequence elements K2(k);', 'wherein n1 is equal to n2, and i, j and k are integers;', 'wherein the signal sequence K(i) is usable by a mobile station to determine a timing of the base station; and', 'wherein timeslot synchronization is achievable between the base station and the mobile station using the signal sequence K(i) transmitted over a synchronization channel.']
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
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