Methods and apparatus to improve communication in a relay channel
AssigneeSamsung Electronics Co., Ltd.
InventorsZhouyue Pi, Farooq Khan, Jiannan Tsai
Life of this patent
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Abstract
A system and method for relaying data communications in a Hybrid Automatic Repeat Request (HARQ) network. The system and method operable to receive a data communication packet from a base station during a first transmission time interval and simultaneously receive an acknowledgement signal from a subscriber station; and transmit a data communication packet to a subscriber station during a second transmission time interval and simultaneously transmit an acknowledgement signal to a base station.
Claims39
A method for data communication in a Hybrid Automatic Repeat Request (HARQ) network, the method comprising:
- transmitting to a first communication node, by a second communication node, a first acknowledgement message received from a third communication node while simultaneously transmitting, to the third communication node, a first data packet received from the first communication node.
A method for data communication in a Hybrid Automatic Repeat Request (HARQ) network, the method comprising:
- receiving, by a relay station, a plurality of data bits as a first version of a communication packet from a base station;
- recoding, by the relay station, the plurality of data bits as a second version of the communication packet;
- receiving, by the relay station, a negative acknowledgement message from a subscriber station;
- and
- responsive to receiving the negative acknowledgement message from the subscriber station, transmitting, by the relay station, the second version of the communication packet to the subscriber station.
An apparatus for relaying data communication in a Hybrid Automatic Repeat Request (HARQ) network, the apparatus comprising:
- a plurality of transmitters antennas configured to simultaneously transmit a first acknowledgement message to a first communication node and a first data packet to a second communication node;
- a plurality of receiver antennas configured to simultaneously receive a second data packet from the first communication node and a second acknowledgement signal from the second communication node;
- and
- a decoder configured to decode data packets transmitted from the first communications node.
A system for data communication in a Hybrid Automatic Repeat Request (HARQ) network, the system comprising:
- a first communication node comprising:
- an encoder configured to encode a number of data packets,
- a plurality of transmitting antennas configured to transmit a number of data packets, and
- a plurality of receiving antennas configured to receive a number of first acknowledgement messages associated with ones of the number of data packets transmitted by said first communication node;
- a second communication node comprising:
- a plurality of transmitters antennas configured to simultaneously transmit said acknowledgment messages to said first communication node and retransmit said number of data packets to a third communication node;
- a plurality of receiver antennas configured to simultaneously receive said number of data packets from the first communication node and a number of second acknowledgement signals from said third communication node;
- and
- a decoder for decoding said number data packets transmitted from the first communications node.
A method for data communication in a Multiple-Input Multiple-Output (MIMO) Hybrid Automatic Repeat Request (HARQ) network, the method comprising:
- receiving a first communication from a first communication node, the first communication comprising a first codeword and a second codeword;
- decoding the second codeword;
- transmitting a negative acknowledgement signal, wherein the negative acknowledgement signal indicates a non-successful decoding of the first codeword and the second codeword;
- receiving a second communication, the second communication comprising a retransmission of the second codeword transmitted from a second communication node in response to transmitting the negative acknowledgement signal;
- decoding the retransmitted second codeword;
- and
- canceling the decoded second codeword from the first communication in order to decode the first codeword.
A system for data communication in a Multiple-Input Multiple-Output (MIMO) Hybrid Automatic Repeat Request (HARQ) network, said system comprising:
- a first communication node configured to transmit a plurality of data packets to a second communication node and a third communication node during a first transmission time interval, said plurality of data packets comprising at least a first data packet and a second data packet;
- and
- said second communication node configured to receive said plurality of data packets from said first communication node and, during a second transmission time interval, re-transmit at least said first data packet to said third communication node in response to receiving a NAK signal from said third communication node.
An apparatus for data communication in a Multiple-Input Multiple-Output (MIMO) Hybrid Automatic Repeat Request (HARQ) network, the apparatus comprising:
- a receiver unit configured to receive a first communication from a first communication node, said first communication comprising a first codeword and a second codeword;
- a decoding unit configured to attempt to decode said first codeword and said second codeword;
- and
- a transmitting unit configured to transmit a negative acknowledgement signal, wherein said negative acknowledgement signal indicates a non-successful decoding of said first codeword and said second codeword;
- and
- wherein said receiving unit is further configured to receive a second communication from a second communication node in response to transmitting said negative acknowledgement signal, said second communication comprising a retransmission of said second codeword, wherein said decoder is further configured to decode said retransmitted second codeword;
- and
- a processor control unit configured to cancel said decoded second codeword from said first communication in order for said decoding unit to decode the first codeword.
Dependencies are inferred from the claim text.