Throughput improvement in wireless systems
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsArezou Mohammadi, Edward Mah
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Abstract
Systems and methods are disclosed for improving throughput in a wireless system utilizing Hybrid Automatic Repeat Request (HARQ) retransmission. In general, prior to a HARQ-enabled transmission, one or more channel conditions for a corresponding transmit channel are obtained. Based on the one or more channel conditions, a set of target block error rates for the HARQ-enabled transmission are determined. In one embodiment, the set of target block error rates maximize throughput for the transmit channel utilizing HARQ retransmission. In another embodiment, the set of target block error rates optimize throughput and one or more additional parameters for the transmit channel utilizing HARQ retransmission.
Claims35
A method for improving throughput in a wireless system utilizing Hybrid Automatic Repeat Request, HARQ, retransmission, comprising:
- obtaining one or more channel conditions for a transmit channel prior to a HARQ-enabled transmission;
- and
- determining a set of target block error rates for the HARQ-enabled transmission based on the one or more channel conditions;
- wherein the set of target block error rates includes a separate target block error rate for each transmission iteration for the HARQ-enabled transmission up to at least a target transmission iteration for successful reception of the HARQ-enabled transmission.
A base station in a wireless system that improves throughput utilizing Hybrid Automatic Repeat Request, HARQ, retransmission, comprising:
- a transceiver subsystem;
- and
- a processing subsystem associated with the transceiver subsystem and adapted to:
- obtain one or more channel conditions for a transmit channel prior to a HARQ-enabled transmission;
- and
- determining a set of target block error rates for the HARQ-enabled transmission based on the one or more channel conditions;
- wherein the set of target block error rates includes a separate target block error rate for each transmission iteration for the HARQ-enabled transmission up to at least a target transmission iteration for successful reception of the HARQ-enabled transmission.
A method for improving throughput in a wireless system utilizing Hybrid Automatic Repeat Request, HARQ, retransmission, comprising:
- controlling a modulation and coding scheme for each transmission iteration of a plurality of transmission iterations for a HARQ-enabled transmission based on a target block error rate;
- and
- separately controlling the target block error rate for each transmission iteration of the plurality of transmission iterations for the HARQ-enabled transmission based on one or more channel conditions for a transmit channel for the HARQ-enabled transmission.
A base station in a wireless system that improves throughput utilizing Hybrid Automatic Repeat Request, HARQ, retransmission, comprising:
- a transceiver subsystem;
- and
- a processing subsystem associated with the transceiver subsystem and adapted to:
- control a modulation and coding scheme for each transmission iteration of a plurality of transmission iterations of a HARQ-enabled transmission based on a target block error rate;
- and
- separately control the target block error rate for each transmission iteration of the plurality of transmission iterations for the HARQ-enabled transmission based on one or more channel conditions for a transmit channel for the HARQ-enabled transmission.
Dependencies are inferred from the claim text.