DEVICE, METHOD AND SYSTEM OF UPLINK COMMUNICATION BETWEEN WIRELESS VIDEO MODULES

• US 20080144726A1
• Filed: 12/16/2007
• Published: 06/19/2008
• Est. Priority Date: 12/15/2006
• Status: Active Grant

• Current Assignee: Amimon Limited (Vitec Group PLC)
• Original Assignee: Amimon Limited (Vitec Group PLC)
• Inventors: Shusterman, Eli, Ophir, Lior, Ingber, Amir
• Granted Patent: US 8,428,152 B2
• Time in Patent Office: Days
• US Class Current: 375/240.28
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/6181 involving transmission via a mobile phone network arrangements for providing broadcast or conference services to substation in data switching networks in combination with wireless systems H04L12/189; wireless uplink channel access H04W74/004

Abstract

Some demonstrative embodiments include devices, systems and/or methods of wireless video communication. Some embodiments include an apparatus including a downlink receiver to receive a wireless downlink video transmission from a video source module, and an uplink transmitter to transmit to the wireless video source module a wireless uplink transmission. Other embodiments are described and claimed.

Claims

1. An apparatus comprising:

a downlink receiver to receive a wireless downlink video transmission from a video source module; and

an uplink transmitter to transmit to said wireless video source module a wireless uplink initialization frame to initialize a connection to said video source module,

wherein said uplink initialization frame includes one or more synchronization sequences followed by one or more data sequences,

wherein each of said synchronization sequences includes two or more consecutive repetitions of a predefined synchronization symbol, and

wherein each of said data sequences includes two or more consecutive repetitions of a data symbol.

2. The apparatus of claim 1, wherein said one or more synchronization sequences include a first synchronization sequence followed by a second synchronization sequence,

wherein said first synchronization sequence includes at least two repetitions of a first synchronization symbol, and

wherein said second synchronization sequence includes at least two repetitions of a second synchronization symbol.

3. The apparatus of claim 2, wherein said one or more synchronization sequences include a third synchronization sequence following said second synchronization sequence and including at least two repetitions of said first synchronization symbol.

4. The apparatus of claim 2, wherein said first and second synchronization symbols include first and second sets of frequency bins, respectively, and wherein said data symbol includes frequency bins of both of said first and second sets.

5. The apparatus of claim 4, wherein said first set of frequency bins is logically exclusive to said second set of frequency bins.

6. The apparatus of claim 1, wherein at least one of said data and synchronization symbols includes a plurality of bits, wherein each of said bits is mapped to at least two frequency bins.

7. The apparatus of claim 6, wherein each of said bits is mapped to at least four frequency bins.

8. The apparatus of claim 1, wherein one or more of said synchronization sequences includes three repetitions of a synchronization symbol, and wherein one or more of said data sequences includes three repetitions of a data symbol.

9. The apparatus of claim 1, wherein said uplink transmitter is to transmit to said wireless video source module a wireless uplink data frame over said connection.

10. The apparatus of claim 9, wherein said uplink data frame includes a plurality of Discrete-Fourier-transform data symbols.

11. The apparatus of claim 9, wherein said uplink transmitter is to synchronize between said uplink data frame and said downlink transmission.

12. The apparatus of claim 9, wherein said uplink transmitter is to synchronize between said uplink data frame and said downlink transmission based on a frequency offset corresponding to a frame of said downlink transmission.

13. The apparatus of claim 9, wherein at least one data symbol of said data frame includes a plurality of bits, wherein at least one of said bits is mapped to at least two frequency bins.

14. The apparatus of claim 1, wherein one or, more of said synchronization and data symbols comprises an orthogonal-frequency-division-multiplexing symbol.

15. The apparatus of claim 1, wherein one or more of said synchronization and data symbols comprises a discrete-Fourier-transform.

16. The apparatus of claim 1, wherein at least one bin of one or more of said synchronization and data symbols is an on-off-keying symbol, an M-alry Phase Shift Keying symbol, or an M-Order Quadrature Amplitude Modulation symbol.

17. The apparatus of claim 1 comprising a display to display a video image corresponding to said downlink video transmission.

18. A method of wireless video communication, the method comprising:

receiving a wireless downlink video transmission from a video source module; and

transmitting to said wireless video source module a wireless uplink initialization frame to initialize a connection to said video source module,

wherein said uplink initialization frame includes one or more synchronization sequences followed by one or more data sequences,

wherein each of said synchronization sequences includes two or more consecutive repetitions of a predefined synchronization symbol, and

wherein each of said data sequences includes two or more consecutive repetitions of a data symbol.

19. The method of claim 18, wherein said one or more synchronization sequences include a first synchronization sequence followed by a second synchronization sequence,

wherein said first synchronization sequence includes at least two repetitions of a first synchronization symbol, and

wherein said second synchronization sequence includes at least two repetitions of a second synchronization symbol.

20. The method of claim 19, wherein said first and second synchronization symbols include first and second sets of frequency bins, respectively, and wherein said data symbol includes frequency bins of both of said first and second sets.

21. The method of claim 18, wherein at least one of said data and synchronization symbols includes a plurality of bits, wherein at least one of said bits is mapped to at least two frequency bins.

22. The method of claim 18 comprising transmitting to said wireless video source module a wireless uplink data frame over said connection.

23. The method of claim 22 comprising synchronizing between said uplink data frame and said downlink transmission.

24. A system comprising:

a video source to transmit a wireless downlink video transmission;

a video destination including;

a downlink receiver to receive said wireless downlink video transmission; and

an uplink transmitter to transmit to said video source a wireless uplink initialization frame to initialize a connection to said video source,

wherein said uplink initialization frame includes one or more synchronization sequences followed by one or more data sequences,

wherein each of said synchronization sequences includes two or more consecutive repetitions of a predefined synchronization symbol, and

wherein each of said data sequences includes two or more consecutive repetitions of a data symbol.

25. The system of claim 24, wherein said video source comprises a downlink transmitter to transmit said downlink transmission, and an uplink receiver to detect said initialization frame.

26. The system of claim 24, wherein said one or more synchronization sequences include a first synchronization sequence followed by a second synchronization sequence,

wherein said first synchronization sequence includes at least two repetitions of a first synchronization symbol, and

wherein said second synchronization sequence includes at least two repetitions of a second synchronization symbol.

27. The system of claim 24, wherein at least one of said data and synchronization symbols includes a plurality of bits, wherein each of said bits is mapped to at least two frequency bins.

28. The system of claim 24, wherein said uplink transmitter is to transmit to said wireless video source module a wireless uplink data frame over said connection.

29. An apparatus comprising:

a downlink receiver to receive a wireless downlink video transmission from a video source module; and

an uplink transmitter to transmit to said wireless video source module a wireless uplink data frame, wherein said uplink transmitter is to synchronize between said uplink data frame and said downlink transmission.

30. The apparatus of claim 29, wherein said uplink transmitter is to synchronize between said uplink data frame and said downlink transmission based on a frequency offset corresponding to a frame of said downlink transmission.

31. The apparatus of claim 29, wherein at least one data symbol of said data frame includes a plurality of bits, wherein each of said bits is mapped to at least two frequency bins.

32. The apparatus of claim 29, wherein said uplink data frame includes a plurality of Discrete-Fourier-transform data symbols.

33. The apparatus of claim 29, wherein at least one symbol of said uplink data frame is an on-off-keying symbol, an M-ary Phase Shift Keying symbol, or an M-Order Quadrature Amplitude Modulation symbol.