Abstract
The present invention relates to a method for uplink synchronization of a first transceiver and a second transceiver in a multi-user cellular communication system wherein communication resources are divided into communication channels. The method including the steps of: transmitting a first signature sequence from the second transceiver to the first transceiver, wherein said signature sequence is selected from a first set of signature sequences£=in the first transceiver, correlating the received signal with at least one signature sequence from a second set of signature sequences to estimate the time of arrival of said signature sequence to synchronize transmission between the second transceiver and the first transceiver. In said step of transmitting a first signature sequence from the second transceiver to the first transceiver a said first signature sequence constitutes at least part of a zero-correlation zone sequence. The invention also relates to a system and a transmitter.
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4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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4G | 24/06/2021 | ISLD-202106-041 | HUAWEI |
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No | Family Member |
Specification Information
Specification Information
Technologies
Family Information
All Granted Patents In Patent Family : | ---- |
All Pending Patents In Patent Family : | ---- |
Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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CN101326739B | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
CN101326739B | 5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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EP1952549A1 | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
EP1952549A1 | 5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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EP1952549B1 | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
EP1952549B1 | 5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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Yes | Basis Patent | |||
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Yes | Basis Patent | |||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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EP2637318A1 | 5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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EP2637318A1 | 5G | 17/06/2020 | ISLD-202006-034 | HUAWEI |
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EP2637318A1 | 4G | 24/06/2021 | ISLD-202106-041 | HUAWEI |
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No | Family Member | |||
EP2637318B1 | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
EP2637318B1 | 5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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EP2637318B1 | 5G | 17/06/2020 | ISLD-202006-034 | HUAWEI |
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EP2637318B1 | 4G | 24/06/2021 | ISLD-202106-041 | HUAWEI |
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No | Family Member | |||
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EP2816738A1 | 5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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No | Family Member | |||
EP2816738B1 | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
EP2816738B1 | 5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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No | Family Member | |||
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No | Family Member | |||
ES2428388T5 | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
ES2428388T5 | 5G | 22/10/2018 | ISLD-201810-041 | HUAWEI |
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No | Family Member | |||
PT1952549E | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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No | Family Member | |||
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Yes | Family Member | |||
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No | Family Member | |||
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S1
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No | Family Member | |||
US2018279382A1 | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
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S1
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Yes | Basis Patent | |||
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S1
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No | Family Member | |||
US2018279382A1 | 4G | 24/06/2021 | ISLD-202106-041 | HUAWEI |
S1
S2
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No | Family Member | |||
PL2637318T3 | 4G | 03/03/2009 | ISLD-200904-001 | HUAWEI | No | Family Member | ||||
PL2637318T3 | 5G | 17/06/2020 | ISLD-202006-034 | HUAWEI |
S1
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No | Family Member | |||
PL2637318T3 | 4G | 24/06/2021 | ISLD-202106-041 | HUAWEI |
S1
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No | Family Member | |||
US10779330B2 | ----- | ----- | ----- | ----- | ----- | ----- | ----- |
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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Technologies


Product


Use Cases

Services

Claim
1. Method for uplink synchronization of a first transceiver and a second transceiver in a multi-user cellular communication system wherein communication resources are divided into communication channels, the method including the steps of: transmitting a first signature sequence from the second transceiver to the first transceiver, wherein said signature sequence is selected from a first set of signature sequences, in the first transceiver, correlating the received signal with at least one signature sequence from a second set of signature sequences to estimate the time of arrival of said signature sequence to synchronize transmission between the second transceiver and the first transceiver, characterized in that in said step of transmitting a first signature sequence from the second transceiver to the first transceiver, said first signature sequence constitutes at least part of a sequence from a set of zero-correlation zone sequences.
2.Method according to claim 1, wherein the received signal is correlated with at least one signature sequence for a predetermined number of delays of the signal.', "3.Method according to claim 1 or 2, wherein the zero- correlation zone of said first signature sequence is of a length such that it substantially corresponds to the maximum expected delay of a transmission from the second transceiver to ' the first transceiver.", '4.Method according to claim 2 or 3, wherein the cell size is used to determine the maximum delay in said correlation step and/or the maximum expected delay of a transmission from the second transceiver to the first transceiver.
5.Method according to any of the claims 1-4, wherein the correlating step further comprises the steps : using a set of matched filters in the first transceiver to correlate the received signal with at least one signature sequence for a predetermined .number of delays of the signals, detecting a peak output from each matched filter, and using the detected peak output from each filter to estimate the time of arrival to synchronize the transmission from the second transceiver.
6.Method according to any of the claims 1-5, characterized in that the method further includes the step of correlating the received signal with each signature sequence in said second set of signature sequences for a predetermined number of delays of the received signal.
7.Method according to any of the preceding claims, characterized in that each signature sequence is taken from a set of Generalized Chirp-Like sequences obtained by modulating a Zadoff-Chu sequence with an orthogonal set of complex sequences .
8.Method according to claim 7, characterized in that the orthogonal set of modulating sequences is the set of rows and/or columns of a discrete Fourier transform matrix.
9.Method according to claim 7, characterized in that the orthogonal set of modulating sequences is a set of rows and/or columns in a Hadamard matrix
10.Method according to any of the preceding claims, characterized in that said first signature sequence is randomly selected among said signature sequences in said first set of signature sequences
11.Method according to any of the preceding claims, characterized in that said multi-user cellular communication system is a UTRA or Evolved UTRA system
12.Method according to any of the preceding claims, characterized in that said first transceiver is a base station and said second transceiver is a mobile terminal
13.Method according to any of the preceding claims, characterized in that said first set of signature sequences and said second set of signature sequences constitute the same set of signature sequences
14.Method according to any of the preceding claims, wherein a reference representing a particular set of signature sequences is transmitted to the second transceiver, and wherein the reference is used by the second transceiver to retrieve the signature sequence set scheme to be used
15.Method according to any of the preceding claims, characterized in that said first signature sequence constitutes a truncated sequence from a set of zero-correlation zone sequences
16.Method according to any of the preceding claims, wherein said second transceiver performs downlink synchronization with said first transceiver prior to the steps of uplink synchronization
17. System for uplink synchronization of a first transceiver and a second transceiver in a multi-user cellular communication system wherein communication resources are divided into communication channels, the system including means for: receiving a signature sequence transmitted from a second transceiver, wherein said transmitted signature sequence is selected from a first set of signature sequences, and means for correlating the received signal with at least one signature sequence from a second set of signature sequences to estimate the time of arrival of said signature sequence to synchronize the transmission between the second transceiver to a first transceiver, characterized in said first signature sequence is arranged such that it constitutes at least part of a sequence from a set of zero-correlation zone sequences
18. System according to claim 17, characterized in that it further includes means for correlating the received signal with at least one signature sequence for a predetermined number of delays of the signal
19. System according to claim 17 or 18, wherein the zero- correlation zone of said first signature sequence is arranged such that it is of a length that substantially corresponds to the maximum expected delay of a transmission from the second transceiver to the first transceiver.
20. System according to claim 18 or 19, characterized in that the cell size is used to determine the maximum delay in said correlation step and/or the maximum expected delay of a transmission from the second transceiver to the first transceiver.
21. System according to any of the claims 17-20, wherein the means for correlating further comprises means for: - using a set of matched filters in the first transceiver to correlate the received signal with at least one signature sequence for a predetermined number of delays of the signals , detecting a peak output from each matched filter, and', '- using the detected peak output from each filter to estimate the time of arrival to synchronize the transmission from the second transceiver.
22. System according to any of the claims 17-21, characterized in that it further includes means for correlating the received signal with each signature sequence in said second set of signature sequences for a predetermined number of delays of the received signal.
23. System according to any of the claims 17-22, characterized in that each signature sequence is taken from a set of Generalized Chirp-Like sequences obtained by modulating a Zadoff-Chu sequence with an orthogonal set of complex sequences .
24. System according to claim 23, characterized in that the orthogonal set of modulating sequences is the set of rows and/or columns of a discrete Fourier transform matrix.
25. System according to claim 23, characterized in that the orthogonal set of modulating sequences is a set of rows and/or columns in a Hadamard matrix.
26. System according to any of the claims 17-25, characterized in that said first signature sequence is arranged to be randomly selected among said signature sequences in said first set of signature sequences.
27.System according to any of the claims 17-26, characterized in that said multi-user cellular communication system is a UTRA or Evolved UTRA system.
28. System according to any of the claims 17-27, characterized in that said first transceiver is a base station and said second transceiver is a mobile terminal.
29. System according to any of the claims 17-28, characterized in that said first set of signature sequences and said second set of signature sequences constitute the same set of signature sequences.
30. System according to any of the claims 17-29, wherein it includes means to transmit a reference representing a particular set of signature sequences to the second transceiver, and wherein the reference is used by the second transceiver to retrieve the signature sequence set scheme to be used.
31.A transmitter for use in a in a multi-user cellular communication system, characterized in that the transmitter includes means for transmitting a first signature sequence to a receiver, wherein said signature sequence is selected from a first set of signature sequences, and wherein said first signature sequence constitutes at least part of a sequence from a set of zero-correlation zone sequences so as to enable the receiver to estimate the time of arrival of said signature sequence by correlation to synchronize transmission between the second transceiver and the first transceiver.
32.A multi-user cellular communication system having communication resources for communication between at least a first transceiver and a second transceiver, characterized in that said communication system includes means for executing a method as claimed in any of the claims 1-16.']
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SUMMARY
ClaimChart-WO2007082409A1-STO
Patent number:WO2007082409A1
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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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.
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.