Abstract
A method and apparatus for transmitting or detecting primary synchronization signal. The receiver receives primary synchronization signal from a transmitter and detects the sequence used in the received primary synchronization signal by using three root indexes. Here the primary synchronization signal is generated by using a Zadoff-Chu sequence having one of the three root indexes. The three root indexes comprise a first index and a second index and a sum of the first index and the second index corresponds to the length of the Zadoff-Chu sequence.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
4G | 12/04/2010 | ISLD-201005-005 | LG | No | Family Member | ||||
Not Available | 17/09/2012 | ISLD-201209-004 | LG | No | Family Member | ||||
Not Available | 23/10/2012 | ISLD-201209-014 | LG | No | Family Member | ||||
4G | 10/10/2014 | ISLD-201409-024 | LG | Yes | Family Member | ||||
4G | 01/10/2014 | ISLD-201409-055 | LG | Yes | Family Member | ||||
4G | 10/09/2015 | ISLD-201507-006 | LG | Yes | Basis Patent |
Specification Information
Specification Information
Technologies
Family Information
All Granted Patents In Patent Family : | ---- |
Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||
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ES2663849T3 | 4G | 12/03/2009 | ISLD-200904-002 | LG | No | Family Member | ||||
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ES2663849T3 | Not Available | 17/09/2012 | ISLD-201209-004 | LG | No | Family Member | ||||
ES2663849T3 | Not Available | 23/10/2012 | ISLD-201209-014 | LG | No | Family Member | ||||
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ES2663849T3 | 4G | 10/10/2014 | ISLD-201409-024 | LG | No | Family Member | ||||
ES2663849T3 | 4G | 01/10/2014 | ISLD-201409-055 | LG | No | Family Member | ||||
ES2663849T3 | 4G | 10/09/2015 | ISLD-201507-006 | LG | No | Family Member | ||||
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HUE035832T2 | 4G | 12/04/2010 | ISLD-201005-005 | LG | No | Family Member | ||||
HUE035832T2 | Not Available | 17/09/2012 | ISLD-201209-002 | LG | No | Family Member | ||||
HUE035832T2 | Not Available | 17/09/2012 | ISLD-201209-004 | LG | No | Family Member | ||||
HUE035832T2 | Not Available | 23/10/2012 | ISLD-201209-014 | LG | No | Family Member | ||||
HUE035832T2 | Not Available | 23/10/2012 | ISLD-201209-020 | LG | No | Family Member | ||||
HUE035832T2 | 4G | 10/10/2014 | ISLD-201409-024 | LG | No | Family Member | ||||
HUE035832T2 | 4G | 01/10/2014 | ISLD-201409-055 | LG | No | Family Member | ||||
HUE035832T2 | 4G | 10/09/2015 | ISLD-201507-006 | LG | No | Family Member | ||||
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||||
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S1
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Technologies
Product
Use Cases
Services
Claim
1. A method of detecting a sequence used in a primary synchronization signal by a receiver in a mobile communication system, the method comprising:
receiving the primary synchronization signal from a transmitter; and
detecting the sequence used in the received primary synchronization signal by using 3 root indexes,
wherein the primary synchronization signal is generated by using a Zadoff-Chu sequence having one of the 3 root indexes,
wherein the 3 root indexes comprise a first index and a second index, and
wherein a sum of the first index and the second index corresponds to a length of the Zadoff-Chu sequence.
2. The method of claim 1,
wherein the Zadoff-Chu sequence has an odd number length, and
wherein an equation for generating the sequence from the Zadoff-Chu sequence is based on the following equation:
exp
?
(
-
?
?
M
?
?
?
?
?
n
?
(
n
+
1
)
N
)
wherein the length of the Zadoff-Chu sequence is �N�, �M� is the root index of the Zadoff-Chu sequence, and �n� is an index of each of constituent components of the generated sequence.
3. The method of claim 2,
wherein �N� is 63, and
wherein the first index and the second index correspond to root indexes of 34 and 29, respectively.
4. The method of claim 1, wherein the 3 root indexes further comprise a third index corresponding to a root index of 25.
5. The method of claim 1, further comprising performing synchronization with the transmitter based on the detected sequence used in the received primary synchronization signal.
6. A method of transmitting a primary synchronization signal to a receiver by a transmitter in a mobile communication system, the method comprising:
mapping a sequence generated by using a Zadoff-Chu sequence having a root index to frequency domain indexes to be used for the primary synchronization signal,
wherein the root index is selected from among 3 root indexes,
wherein the 3 root indexes comprise a first index and a second index, and
wherein a sum of the first index and the second index corresponds to a length of the Zadoff-Chu sequence; and
transmitting the primary synchronization signal using the mapped sequence to the receiver.
7. The method of claim 6,
wherein the Zadoff-Chu sequence has an odd number length, and
wherein an equation for generating the sequence from the Zadoff-Chu sequence is based on the following equation:
exp
?
(
-
?
?
M
?
?
?
?
?
n
?
(
n
+
1
)
N
)
wherein the length of the Zadoff-Chu sequence is �N�, �M� is the root index of the Zadoff-Chu sequence, and �n� is an index of each of constituent components of the generated sequence.
8. The method of claim 7,
wherein �N� is 63, and
wherein the first index and the second index correspond to root indexes of 34 and 29, respectively.
9. The method of claim 6, wherein the 3 root indexes further comprise a third index corresponding to a root index of 25.
10. A receiver for detecting a sequence used in a primary synchronization signal in a mobile communication system using orthogonal frequency division multiplexing (OFDM), the receiver comprising:
a radio frequency module configured to receive the primary synchronization signal from a transmitter; and
an index demapper configured to detect the sequence used in the received primary synchronization signal by using 3 root indexes,
wherein the primary synchronization signal is generated by using a Zadoff-Chu sequence having one of the 3 root indexes,
wherein the 3 root indexes comprise a first index and a second index, and
wherein a sum of the first index and the second index corresponds to a length of the Zadoff-Chu sequence.
11. The receiver of claim 10,
wherein the Zadoff-Chu sequence has an odd number length, and
wherein an equation for generating the sequence from the Zadoff-Chu sequence is based on the following equation:
exp
?
(
-
?
?
M
?
?
?
?
?
n
?
(
n
+
1
)
N
)
wherein the length of the Zadoff-Chu sequence is �N�, �M� is the root index of the Zadoff-Chu sequence, and �n� is an index of each of constituent components of the generated sequence.
12. The receiver of claim 11,
wherein �N� is 63, and
wherein the first index and the second index correspond to root indexes of 34 and 29, respectively.
13. The receiver of claim 10, wherein the 3 root indexes further comprise a third index corresponding to a root index of 25.
14. A transmitter for transmitting a primary synchronization signal to a receiver in a mobile communication system using orthogonal frequency division multiplexing (OFDM), the transmitter comprising:
a mapping module configured to map a sequence generated by using a Zadoff-Chu sequence having a root index to frequency domain indexes to be used for the primary synchronization signal,
wherein the root index is selected from among 3 root indexes,
wherein the 3 root indexes comprise a first index and a second index, and
wherein a sum of the first index and the second index corresponds to a length of the Zadoff-Chu sequence;
an Inverse Fast Fourier Transform (IFFT) module configured to generate a time-domain transmission signal from the sequence mapped to the frequency domain indexes; and
a radio frequency (RF) module configured to transmit the time-domain transmission signal to the receiver as the primary synchronization signal.
15. The transmitter of claim 14,
wherein the Zadoff-Chu sequence has an odd number length, and
wherein an equation for generating the sequence from the Zadoff-Chu sequence is based on the following equation:
exp
?
(
-
?
?
M
?
?
?
?
?
n
?
(
n
+
1
)
N
)
wherein the length of the Zadoff-Chu sequence is �N�, �M� is the root index of the Zadoff-Chu sequence, and �n� is an index of each of constituent components of the generated sequence.
16. The transmitter of claim 15,
wherein �N� is 63, and
wherein the first index and the second index correspond to root indexes of 34 and 29, respectively.
17. The transmitter of claim 15, wherein the 3 root indexes further comprise a third index corresponding to a root index of 25.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
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.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.