EP2267961A3

5G,4G

Title

OFDM transmitter for symbols of different sizes

Application Number:

EP20100183133

Publication Date:

26-01-2011

Current Assignee:

APPLE INC

Family ID:

27488569

Application Date:

15-10-2002

Declaring Company:

APPLE INC , NORTEL NETWORKS LIMITED

Publication Country:

US

Priority Date:

17-10-2001

View on Espacenet goto-link

Title

OFDM transmitter for symbols of different sizes

Application Number:

EP20100183133

Family ID:

27488569

Publication Country:

US

Publication Date:

26-01-2011

Application Date:

15-10-2002

Priority Date:

17-10-2001

Current Assignee:

APPLE INC

Declaring Company:

APPLE INC , NORTEL NETWORKS LIMITED

View on Espacenet goto-link

Abstract  Abstract

The invention provides a transmitter adapted to transmit using: a first mode of operation in which OFDM symbols are constructed from N time domain samples; a second mode of operation in which OFDM symbols are constructed from N/2 time domain samples. Alternatively the transmitter may comprise a first FFT element that has a first FFT size and generates first OFDM symbols with a first duration each first OFDM symbol having a respective first cyclic prefix a second FFT element that has a second FFT size that is smaller than the first FFT size that generates second OFDM symbols with a second duration that is shorter than the first duration each second OFDM symbol having a respective second cyclic prefix a duration of each second cyclic prefix being shorter than a duration of each first cycle prefix the transmitter being adapted to transmit a series of slots with fixed duration the slots containing first OFDM symbols and second OFDM symbols.

Note:

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.

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