Methods and Systems for HARQ Protocols
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Abstract
Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions. In some embodiments of the invention, a 3-state acknowledgement channel and associated error recovery operation enables the base station and mobile station to recover from control signaling error and reduce packet loss.
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Citations
39 Claims
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1-19. -19. (canceled)
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20. A method comprising:
a mobile station performing, determining, in response to a previously sent negative acknowledgement (NAK) to a base station, timing for receiving one of a transmission and a retransmission of a sub-packet of an encoder packet from the base station; wherein the timing is based on configuration signaling, wherein the configuration signaling defines a hybrid automatic repeat request acknowledgement (ACK) delay, retransmit delay and number of HARQ interlaces, and wherein each is a function of at least one of a time division duplexing downlink/uplink (TDD DL/UL) ratio and a frequency division duplexing downlink/uplink (FDD DL/UL) ratio. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A method comprising:
a base station performing, determining, in response to a previously sent transmission of an encoder packet to a mobile station, timing for receiving an acknowledgment/negative acknowledgement (ACK/NAK) from the mobile station based on configuration signaling; wherein the timing is based on configuration signaling, wherein the configuration signaling defines a hybrid automatic repeat request acknowledgement (ACK) delay, retransmit delay and number of HARQ interlaces, and wherein each is a function of at least one of a time division duplexing downlink/uplink (TDD DL/UL) ratio and a frequency division duplexing downlink/uplink (FDD DL/UL) ratio. - View Dependent Claims (28, 29, 30, 31, 32)
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33. A user equipment device (UE), comprising:
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at least one antenna; at least one radio coupled to the antenna, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT); one or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform voice and/or data communications; wherein the UE is configured to; determine, in response to a previously sent negative acknowledgement (NAK) to a base station, timing for receiving one of a transmission and a retransmission of a sub-packet of an encoder packet from the base station; wherein the timing is based on configuration signaling, wherein the configuration signaling defines a hybrid automatic repeat request acknowledgement (ACK) delay, retransmit delay and number of HARQ interlaces, and wherein each is a function of at least one of a time division duplexing downlink/uplink (TDD DL/UL) ratio and a frequency division duplexing downlink/uplink (FDD DL/UL) ratio. - View Dependent Claims (34, 35, 36, 37, 38, 39)
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Specification