Receiver terminal driven joint encoder and decoder mode adaptation for SU-MIMO systems
First Claim
1. A wireless communication system comprising:
- a transmitter that is operable to transmit wireless signals using any of a plurality of encoding modes representing one or more transmission rates; and
a user terminal having a receiver comprisinga decoding module to decode communications from the transmitter over a multiple-input, multiple output (MIMO) channel using a decoding mode selected from a plurality of decoding modes, wherein at least one of the encoding modes is operable with more than one of the decoding modes, anda joint selection module to jointly select the decoding mode from the plurality of decoding modes to be used by the user terminal with an encoding mode from the plurality of encoding modes to be used by the transmitter, the joint selection based on being able to successfully transmit a corresponding data stream at a rate given by the encoding mode given channel conditions, and additionally the joint selection based on a combination of receiver-dependent criteria corresponding to the jointly selected decoding mode and encoding mode;
channel information, receiver hardware and state, and application-specific constraints, the joint selection module being operable to send information to identify the selected encoding mode to the transmitter using a feedback channel.
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Abstract
A system, a method and an apparatus are disclosed herein for receiver terminal driven joint encoder and decoder mode adaptation for SU-MIMO transmission. In one embodiment, the system comprises a transmitter that is able to be directed to transmit wireless signals over a multiple-input, multiple output (MIMO) system using any of a plurality of encoding modes; and a user terminal having a receiver comprising a decoding module which has a plurality of decoding modes, each of which can be used to decode communications from the transmitter received over a multiple-input, multiple output (MIMO) channel, wherein at least one encoding mode is operable with multiple of the decoding modes. The system also comprises a joint selection module that is operable to select for the MIMO transmission the decoding mode from the plurality of decoding modes and an encoding mode from the plurality of encoding modes to be used by the transmitter on the channel, the selection being based on receiver-dependent criteria corresponding to the decoding mode associated with the encoding mode and channel information, receiver hardware and state, and application-specific constraints. The joint selection module is operable to send information to identify the encoding mode to the transmitter using a feedback channel.
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Citations
24 Claims
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1. A wireless communication system comprising:
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a transmitter that is operable to transmit wireless signals using any of a plurality of encoding modes representing one or more transmission rates; and a user terminal having a receiver comprising a decoding module to decode communications from the transmitter over a multiple-input, multiple output (MIMO) channel using a decoding mode selected from a plurality of decoding modes, wherein at least one of the encoding modes is operable with more than one of the decoding modes, and a joint selection module to jointly select the decoding mode from the plurality of decoding modes to be used by the user terminal with an encoding mode from the plurality of encoding modes to be used by the transmitter, the joint selection based on being able to successfully transmit a corresponding data stream at a rate given by the encoding mode given channel conditions, and additionally the joint selection based on a combination of receiver-dependent criteria corresponding to the jointly selected decoding mode and encoding mode;
channel information, receiver hardware and state, and application-specific constraints, the joint selection module being operable to send information to identify the selected encoding mode to the transmitter using a feedback channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A terminal for use in a wireless communication system comprising a transmitter that is operable to transmit wireless signals using a plurality of encoding modes, the terminal comprising a receiver having
a decoding module to decode communications from the transmitter over a multiple-input, multiple output (MIMO) channel using a decoding mode selected from a plurality of decoding modes, wherein at least one of the encoding modes is operable with more than one of the decoding modes; - and
a joint selection module to jointly select the decoding mode from the plurality of decoding modes to be used by the terminal with an encoding mode from the plurality of encoding modes to be used by the transmitter, the joint selection based on being able to successfully transmit a corresponding data stream at a rate given by the encoding mode with the given channel conditions, and additionally the joint selection based on a combination of receiver-dependent criteria corresponding to the jointly selected decoding mode and encoding mode, channel information, receiver hardware and state, and application-specific constraints, the joint selection module being operable to send information to identify the selected encoding mode to the transmitter using a feedback channel. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method comprising:
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estimating a multiple-input, multiple output (MIMO) channel at a receiver in a wireless communication system, the channel for communications between a transmitter and the receiver; jointly selecting a decoding mode from a plurality of decoding modes to be used by the receiver with an encoding mode from the plurality of encoding modes to be used by the transmitter, the joint selection based on being able to successfully transmit a corresponding data stream at a rate given by the encoding mode given the channel conditions, and additionally the joint selection based on a combination of receiver-dependent criteria corresponding to the jointly selected decoding mode and encoding mod;
channel information, receiver hardware and state, and application-specific constraints; andsending information to identify the encoding mode to the transmitter using a feedback channel.
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Specification