Abstract
A method of operating a wireless communications unit (UE) to request a connection with a base station ( 10) is disclosed. The wireless unit (UE) receives a signal from the base station (10) indicating at least one time slot within which a preamble may be transmitted by the wireless communications unit (UE). The wireless unit (UE) selects one of a plurality of orthogonal codes (hi) for the preamble and generates a spread code using the selected orthogonal code. The spread code (70) is arranged as a symbol (hi) of the selected code repeated a selected number of repetitions. The wireless unit (UE) transmits the preamble signal corresponding to the spread code to the base station (10).
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 3G | 03/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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| 3G | 03/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
| 3G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
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Yes | Family Member | |||
| 3G | 15/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
Specification Information
Specification Information
Technologies
Family Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| US7173919B1 | 3G | 03/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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Yes | Basis Patent | |||
| US7173919B1 | 3G | 03/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
| US7173919B1 | 3G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
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Yes | Basis Patent | |||
| US7173919B1 | 3G | 15/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
| US2004264550A1 | 3G | 03/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
| US2004264550A1 | 3G | 03/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| US2004264550A1 | 3G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
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Yes | Family Member | |||
| US2004264550A1 | 3G | 15/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
| US2008130482A1 | 3G | 03/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| US2008130482A1 | 3G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| US2008130482A1 | 3G | 15/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
| US8174955B2 | 3G | 03/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| US8174955B2 | 3G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| US8174955B2 | 3G | 15/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Multiple access
Product
Use Cases
Wireless communication
Services
Claim
1. A method of decoding a preamble, comprising the steps of:
extracting a first number of groups of signals having a second number of signals in each group from a data stream having a predetermined length, wherein each group has a third number of subgroups;
applying one signal from each subgroup to a respective despreader circuit of a third number of despreader circuits, each despreader circuit producing a respective output signal; and
producing at least one transform from the output signals from the third number of despreader circuits, the at least one transform having the third number of signals.', 'extracting a first number of groups of signals having a second number of signals in each group from a data stream having a predetermined length, wherein each group has a third number of subgroups;', 'applying one signal from each subgroup to a respective despreader circuit of a third number of despreader circuits, each despreader circuit producing a respective output signal; and', 'producing at least one transform from the output signals from the third number of despreader circuits, the at least one transform having the third number of signals.
2. A method as in claim 1, comprising summing a respective signal corresponding to the at least one transform at a third number of sum circuits, thereby producing the third number of sum signals.
3. A method as in claim 2, wherein a product of the first and second numbers is equal to the predetermined length.
4. A method as in claim 3, wherein the first number is 4, the second number is 1024, the third number is 16, and the predetermined length is 4096 signals.
5. A method as in claim 2, wherein the at least one transform is a Walsh Hadamard transform.
6. A method as in claim 2, wherein the respective signal corresponding to the at least one transform is a square of the amplitude of the transform signal.
7. A method as in claim 2, wherein the sum signal corresponds to a match between the data stream and one of a plurality of codes.
8. A method as in claim 1, comprising:
producing a plurality of products, each product comprising a respective transform signal and complex conjugates of another respective transform signal; and
summing a plurality of the products at each of a third number of sum circuits, thereby producing the third number of sum signals.', 'producing a plurality of products, each product comprising a respective transform signal and complex conjugates of another respective transform signal; and', 'summing a plurality of the products at each of a third number of sum circuits, thereby producing the third number of sum signals.
9. A method as in claim 8, wherein a product of the first and second numbers is equal to the predetermined length
10. A method as in claim 9, wherein the first number is 4, the second number is 1024, the third number is 16, and the predetermined length is 4096 signals
11. A method as in claim 8, wherein the at least one transform is a Walsh Hadamard transform
12. A method as in claim 8, wherein the sum signal corresponds to a match between the data stream and one of a plurality of codes
13. A method of decoding a data sequence having a group of signals repeated a predetermined number of times, comprising the steps of:
applying one signal from each group to a respective despreader circuit of a plurality of despreader circuits, each despreader circuit of the plurality of despreader circuits producing a respective output signal; and
producing at least one transform from the output signals of the plurality of despreader circuits, the at least one transform having a second number of signals.', 'applying one signal from each group to a respective despreader circuit of a plurality of despreader circuits, each despreader circuit of the plurality of despreader circuits producing a respective output signal; and', 'producing at least one transform from the output signals of the plurality of despreader circuits, the at least one transform having a second number of signals
14. A method as in claim 13, wherein the plurality of despreader circuits comprises 64 despreader circuits
15. A method as in claim 13, wherein the at least one transform comprises 4 transforms
16. A method as in claim 13, wherein the at least one transform is a Walsh Hadamard transform
17. A method as in claim 13, comprising summing a respective signal corresponding to the at least one transform at a respective sum circuit, thereby producing a plurality of sum signals, wherein the plurality of sum signals corresponds to a match between the group of signals and one of a plurality of codes
18. A method as in claim 13, comprising summing a respective signal corresponding to the at least one transform at a respective sum circuit, thereby producing a plurality of sum signals
19. A method as in claim 13, comprising:
producing a plurality of products, each product comprising a respective transform signal and complex conjugates of another respective transform signal; and
summing a plurality of the products at each of a plurality of sum circuits, thereby producing a plurality of sum signals.', 'producing a plurality of products, each product comprising a respective transform signal and complex conjugates of another respective transform signal; and', 'summing a plurality of the products at each of a plurality of sum circuits, thereby producing a plurality of sum signals.
20. A method of communicating with a remote device, comprising the steps of:
selecting a first code from a plurality of orthogonal codes;
repeating the first code a plurality of times to produce a sequence having a predetermined length;
combining the sequence with a second code having the predetermined length to produce a preamble;
transmitting the preamble to the remote device; and
receiving an acknowledgement from the remote device in response to the step of transmitting.', 'selecting a first code from a plurality of orthogonal codes;', 'repeating the first code a plurality of times to produce a sequence having a predetermined length;', 'combining the sequence with a second code having the predetermined length to produce a preamble;', 'transmitting the preamble to the remote device; and', 'receiving an acknowledgement from the remote device in response to the step of transmitting.
21. A method as in claim 20, wherein the plurality of orthogonal codes are Walsh Hadamard codes corresponding to users in a wireless cell and wherein the second code is a scrambling code corresponding to a wireless cell.']
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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.