TW200705936A - Methods and apparatus for transmitting layered and non-layered data via layered modulation - Google Patents

Methods and apparatus for transmitting layered and non-layered data via layered modulation

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Publication number
TW200705936A
TW200705936A TW095108219A TW95108219A TW200705936A TW 200705936 A TW200705936 A TW 200705936A TW 095108219 A TW095108219 A TW 095108219A TW 95108219 A TW95108219 A TW 95108219A TW 200705936 A TW200705936 A TW 200705936A
Authority
TW
Taiwan
Prior art keywords
data
layered
layer
mac
controller
Prior art date
Application number
TW095108219A
Other languages
Chinese (zh)
Inventor
Bruce Collins
Rajeev Krishnamurthi
Ramaswamy Murali
Shusheel Gautam
Rajiv Vijayan
Seong Taek Chung
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/330,796 external-priority patent/US7630451B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200705936A publication Critical patent/TW200705936A/en

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  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A media access control (MAC) layer controller can manage base layer data and enhancement layer data in a layered modulation system. The MAC layer controller can process both base layer data and enhancement layer data and map tea encoded symbols to a layered modulation constellation when both are present. If data for one of the layers terminates, then the MAC layer controller can generate and supply predetermined stuffing data to the layer lacking additional data. The MAC layer controller can send a control signal to the physical layer hardware to cause the hardware to map the layered signals having the stuffing data to a modified signal constellation. The MAC controller can also generate an overhead message that indicates the occurrence of the sniffing data. The receiver can receive the overhead message and can use the information to configure the receiver for the layered modulation constellation or the modified signal constellation.
TW095108219A 2005-03-10 2006-03-10 Methods and apparatus for transmitting layered and non-layered data via layered modulation TW200705936A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66087305P 2005-03-10 2005-03-10
US11/330,796 US7630451B2 (en) 2005-01-11 2006-01-11 Methods and apparatus for transmitting layered and non-layered data via layered modulation

Publications (1)

Publication Number Publication Date
TW200705936A true TW200705936A (en) 2007-02-01

Family

ID=57910709

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095108219A TW200705936A (en) 2005-03-10 2006-03-10 Methods and apparatus for transmitting layered and non-layered data via layered modulation

Country Status (1)

Country Link
TW (1) TW200705936A (en)

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