Abstract
A wireless communications network including a base station ( 10) and wireless units (UE) is disclosed. The wireless units (UE) request a connection with the base station (10) by the transmission of a preamble within time slots designated by the base station (10). The disclosed preambles are Walsh Hadamard code symbols repeated a number of times so as to have the same length as a cell-specific scrambling code. The wireless unit (UE) requesting a connection pseudo-randomly selects a time slot from those available and one of the Walsh Hadamard code symbols replicates the code symbol into a spread interleaved bitstream scrambles this bitstream and transmits it to the base station (10). Upon receipt the base station (10) applies the incoming bitstream to a matched filter (98) to descramble the signal following which the symbol is de-interleaved by way of a sequence of delay lines (100). Despreaders (102) generate each bit of the symbol from corresponding taps of the delay lines (100) and the symbol is applied to a correlator (104 126 136) to determine the transmitted preamble.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
| 3G | 04/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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| 3G | 22/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| 3G | 16/10/2015 | 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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| Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||
| US7173919B1 | 3G | 04/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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Yes | Basis Patent | |||
| US7173919B1 | 3G | 04/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
| US7173919B1 | 3G | 22/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
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Yes | Basis Patent | |||
| US7173919B1 | 3G | 16/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
| US2004264550A1 | 3G | 04/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
| US2004264550A1 | 3G | 04/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| US2004264550A1 | 3G | 22/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
S1
S2
S3
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Yes | Family Member | |||
| US2004264550A1 | 3G | 16/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
| US7324485B2 | 3G | 04/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
| US7324485B2 | 3G | 04/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| US7324485B2 | 3G | 22/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
S1
S2
S3
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Yes | Family Member | |||
| US7324485B2 | 3G | 16/10/2015 | ISLD-201509-009 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
| US2008130482A1 | 3G | 04/04/2008 | ISLD-200804-017 | TEXAS INSTRUMENTS INC |
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No | Family Member | |||
| US2008130482A1 | 3G | 22/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC |
S1
S2
S3
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No | Family Member | |||
| US2008130482A1 | 3G | 16/10/2015 | 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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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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