Multi-carrier incremental redundancy for packet based wireless communications
First Claim
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1. A method of providing redundancy for error recovery in multi-carrier wireless communications, the method comprising:
- receiving a primary version of information encoded with a first encoding scheme, the primary version being received on a first carrier;
receiving multiple redundancy versions of the information encoded with multiple encoding schemes, at least parts of the multiple redundancy versions being received on multiple carriers;
decoding the primary version;
decoding the multiple redundancy versions; and
selectively soft combining at least one of the multiple redundancy versions with the primary version, wherein at least one other of the multiple redundancy versions is discarded.
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Abstract
Methods and apparatus are disclosed herein for providing incremental redundancy in a wireless communication system to aid in error recovery. One or more redundancy versions are sent on different carriers than the primary version of information to be transmitted. At the receiver end the redundancy versions may be combined using hard or soft combining techniques, including selection combining, selective soft combining or soft combining.
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Citations
24 Claims
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1. A method of providing redundancy for error recovery in multi-carrier wireless communications, the method comprising:
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receiving a primary version of information encoded with a first encoding scheme, the primary version being received on a first carrier; receiving multiple redundancy versions of the information encoded with multiple encoding schemes, at least parts of the multiple redundancy versions being received on multiple carriers; decoding the primary version; decoding the multiple redundancy versions; and selectively soft combining at least one of the multiple redundancy versions with the primary version, wherein at least one other of the multiple redundancy versions is discarded. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for providing redundancy for error recovery in multi-carrier wireless communications, the apparatus comprising:
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means for receiving a primary version of information encoded with a first encoding scheme, the primary version being received on a first carrier; means for receiving multiple redundancy versions of the information encoded with multiple encoding schemes, at least parts of the multiple redundancy versions being received on multiple carriers; means for decoding the primary version; means for decoding the multiple redundancy versions; and means for selectively soft combining at least one of the multiple redundancy versions with the primary version, wherein at least one other of the multiple redundancy versions is discarded. - View Dependent Claims (7, 8, 9, 10)
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11. A communication device for providing redundancy for error recovery in multi-carrier wireless communications, the device comprising:
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a receiver for receiving a primary version of information encoded with a first encoding scheme, the primary version being received on a first carrier, and receiving multiple redundancy versions of the information encoded with multiple encoding schemes, at least parts of the multiple redundancy versions being received on multiple carriers; a decoder for decoding the primary version of information and decoding the multiple redundancy versions of the information wherein the decoder selectively soft combines at least one of the multiple redundancy versions with the primary version and discards at least one other of the multiple redundancy versions. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A computer program product for error recovery in multi-carrier wireless communications, comprising:
computer readable non-transitory medium comprising; code for causing a computer to receive a primary version of information encoded with a first encoding scheme, the primary version being received on a first carrier; code for causing a computer to receive multiple redundancy versions of the information encoded with multiple encoding schemes, at least parts of the multiple redundancy versions being received on multiple carriers; code for causing a computer to decode the primary version; code for causing a computer to decode the multiple redundancy versions; and code for causing a computer to selectively soft combine at least one of the multiple redundancy versions with the primary version and to discard at least one other of the multiple redundancy versions. - View Dependent Claims (18, 19, 20, 21)
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22. A communication system for providing redundancy for error recovery in multi-carrier wireless communications, the system comprising:
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a first device comprising a transmitter for transmitting a primary version of information encoded with a first encoding scheme and for transmitting multiple redundancy versions of the information encoded with multiple encoding schemes; and a second device comprising; a receiver for receiving the primary version on a first carrier and receiving the multiple redundancy versions of the information, at least parts of the multiple redundancy versions being received on multiple carriers; and a decoder for decoding the primary version of information and decoding the multiple redundancy versions of the information, wherein the decoder is operable to selectively soft combine at least one of the multiple redundancy versions with the primary version and discard at least one other of the multiple redundancy versions. - View Dependent Claims (23, 24)
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Specification