Abstract
The present disclosure provides a base station transmitter a user equipment transmitter and methods of operating the base station and user equipment transmitters. In one embodiment the base station transmitter is for use with a cellular communication system and includes a synchronization unit configured to provide a randomly-generated constant amplitude zero autocorrelation (random-CAZAC) sequence corresponding to a downlink synchronization signal. Additionally the base station transmitter also includes a transmit unit configured to transmit the downlink synchronization signal using the random-CAZAC sequence. In another embodiment the user equipment transmitter is for use with a cellular communication system and includes a reference signal unit configured to provide a random-CAZAC sequence for an uplink reference signal corresponding to a one resource block allocation of the user equipment. The user equipment transmitter also includes a transmit unit configured to transmit the uplink reference signal using the random-CAZAC sequence.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
Not Available | 09/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
4G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | No | Family Member |
Specification Information
Specification 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 Number | |||||||
US2008267137A1 | Not Available | 09/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
US2008267137A1 | 4G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
US9344314B2 | Not Available | 09/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
US9344314B2 | 4G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | Yes | Basis Patent | ||||
EP2160878A1 | Not Available | 09/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
EP2160878A1 | 4G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
EP2160878A4 | Not Available | 09/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
EP2160878A4 | 4G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
EP2160878B1 | Not Available | 09/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
EP2160878B1 | 4G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | Yes | Family Member | ||||
WO2008131462A1 | Not Available | 09/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
WO2008131462A1 | 4G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
US2016234798A1 | Not Available | 09/11/2011 | ISLD-201111-002 | TEXAS INSTRUMENTS INC | No | Family Member | ||||
US2016234798A1 | 4G | 21/03/2012 | ISLD-201203-017 | TEXAS INSTRUMENTS INC | No | Family Member |
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Technologies
Product
Use Cases
Services
Claim
1. A user equipment transmitter for use with a cellular communication system, comprising:
a reference signal unit configured to provide a QPSK sequence for an uplink reference signal corresponding to a one or two resource block allocation of the user equipment;
a Zadoff-Chu sequence unit configured to generate a Zadoff-Chu sequence for the uplink reference signal corresponding to a resource block allocation of three or more for the user equipment; and
a transmit unit configured to transmit the uplink reference signal.
2. The user equipment transmitter as recited in claim 1 wherein the QPSK sequence is selected from a group of QPSK sequences that is stored in the user equipment.
3. The user equipment transmitter as recited in claim 2 wherein the group of the QPSK sequences provides a mean cross-correlation that is no greater than a corresponding group of cyclic extended or truncated Zadoff-Chu sequences.
4. The user equipment transmitter as recited in claim 2 wherein the group of the QPSK sequences provides a square root mean square cross-correlation that is no greater than a corresponding group of cyclic extended or truncated Zadoff-Chu sequences.
5. The user equipment transmitter as recited in claim 2 wherein the group of the QPSK sequences provides a cubic metric that is no greater than a corresponding group of cyclic extended or truncated Zadoff-Chu sequences.
6. The user equipment transmitter as recited in claim 1 wherein the QPSK sequence is selected from the QPSK sequences consisting of ej?(n)?/4, where the value of ?(n); n=0, 1, . . . , 11 is given by one of the sequences below:
{?(0), ?(1), . . . , ?(11)}
S1={1, ?3, 3, 1, ?1, ?1, ?1, 1, 1, 3, ?1, 1};
S2={1, ?3, ?1, 3, 3, ?1, ?3, 1, 1, 1, 1, 1};
S3={1, ?3, 1, 1, ?3, 1, 1, 1, ?3, ?3, ?3, 1};
S4={1, ?3, 3, ?1, ?1, 1, 1, ?1, ?1, 3, ?3 1};
S5={1, ?3, 3, 3, 1, 3, 3, 1, ?3, ?1, ?1, 3}; and
S6={1, 3, ?3, ?3, 3, ?3, 1, ?1, ?1, 3, ?1, ?3}.
7. A method of operating a user equipment transmitter for use with a cellular communication system, comprising:
providing a QPSK sequence for an uplink reference signal corresponding to a one or two resource block allocation of the user equipment;
generating a Zadoff-Chu sequence for the uplink reference signal corresponding to a resource block allocation of three or more for the user equipment; and
transmitting the uplink reference signal.
8. The method as recited in claim 7 wherein the QPSK sequence is selected from a group of QPSK sequences that is stored in the user equipment.
9. The method as recited in claim 8 wherein the group of the QPSK sequences provides a mean cross-correlation that is no greater than a corresponding group of cyclic extended or truncated Zadoff-Chu sequences.
10. The method as recited in claim 8 wherein the group of the QPSK sequences provides a square root mean square cross-correlation that is no greater than a corresponding group of cyclic extended or truncated Zadoff-Chu sequences.
11. The method as recited in claim 8 wherein the group of the QPSK sequences provides a cubic metric that is no greater than a corresponding group of cyclic extended or truncated Zadoff-Chu sequences.
12. The method as recited in claim 7 wherein the QPSK sequence is selected from the QPSK sequences consisting of ej?(n)?/4, where the value of ?(n); n=0, 1, . . . , 11 is given by one of the sequences below:
{?(0), ?(1), . . . , ?(11)}
S1={1, ?3, 3, 1, ?1, ?1, ?1, 1, 1, 3, ?1, 1};
S2={1, ?3, ?1, 3, 3, ?1, ?3, 1, 1, 1, 1, 1};
S3={1, ?3, 1, 1, ?3, 1, 1, 1, ?3, ?3, ?3, 1};
S4={1, ?3, 3, ?1, ?1, 1, 1, ?1, ?1, 3, ?3 1};
S5={1, ?3, 3, 3, 1, 3, 3, 1, ?3, ?1, ?1, 3}; and
S6={1, 3, ?3, ?3, 3, ?3, 1, ?1, ?1, 3, ?1, ?3}.
13. A user equipment transmitter for use with a cellular communication system, comprising:
a reference signal unit configured to provide a reference sequence for an uplink reference signal corresponding to a one or two resource block allocation of the user equipment by selecting one sequence from thirty sequences stored in a memory of the user equipment;
a sequence generation unit configured to generate a reference sequence for the uplink reference signal corresponding to a resource block allocation that is greater than two; and
a transmit unit configured to transmit the uplink reference signal.
14. The user equipment transmitter as recited in claim 13 wherein the reference sequences stored in the memory are QPSK sequences.
15. The user equipment transmitter as recited in claim 13 wherein the reference sequence generated is a Zadoff-Chu sequence.
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SUMMARY
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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.