Early termination of repeated transmissions for mtc
AssigneeIntel IP Corporation
InventorsDebdeep Chatterjee, Gang Xiong, Seunghee Han
Life of this patent
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Abstract
Systems, apparatus, user equipment (UE), evolved node B(eNB), and methods are described for machine-type communications (MTC) with early termination of repeated transmissions. In MTC implementations with narrow bandwidth, significant numbers of retransmissions may be scheduled based on channel quality measurements. If data is successfully decoded at a receiving device while a significant number of retransmissions remain, system resources are wasted. Embodiments described herein thus use downlink control messaging or intermediate hybrid automatic repeat request (HARQ) messaging for early termination of repeated messages.
Claims26
An apparatus of an evolved node B (eNB) for machine-type communications (MTC) comprising:
- receive circuitry configured to receive one or more transmissions of block data on a Physical Uplink Shared Channel (PUSCH) from a first user equipment (UE) during a retransmission window;
- control circuitry configured to:
- determine that the block data has been successfully decoded at the eNB using the one or more transmissions of the block data;
- and
- generate an early termination of repeated transmissions message for the data block following determination of successful decoding, the early termination of repeated transmissions message comprising a downlink control information (DCI) message;
- and
- transmit circuitry configured to transmit the early termination of repeated transmissions message during the retransmission window.
A non-transitory computer readable medium comprising instructions that, when executed by one or more processors, configure an evolved node B (eNB) for machine-type communications (MTC), the instructions to configure the eNB to:
- determine a channel connection quality to a user equipment (UE) based on one or more measurements associated with a Physical Uplink Shared Channel (PUSCH);
- select a retransmission value based on the channel quality, wherein the retransmission value is associated with a retransmission window;
- receive one or more transmissions of block data on the PUSCH from the UE during the retransmission window;
- determine that the block data has been successfully decoded at the eNB using the one or more transmissions of the block data;
- and
- configure, in response to the determination that the block data has been successfully decoded, a transceiver for transmission of an early termination of repeated transmissions message comprising a downlink control information (DCI) message during the retransmission window.
An apparatus of an evolved node B (eNB) for machine-type communications (MTC) comprising:
- receive circuitry configured to receive one or more transmissions of block data on a Physical Uplink Shared Channel (PUSCH) from a first user equipment (UE) during a retransmission window;
- control circuitry configured to:
- determine a channel quality associated with the PUSCH based on one or more measurements prior to reception of the one or more transmissions of the block data;
- select a retransmission value based on the channel quality, wherein the retransmission value is associated with the retransmission window;
- determine that the block data has been successfully decoded at the eNB using the one or more transmissions of the block data;
- and
- generate an early termination of repeated transmissions message comprising a hybrid automatic repeat request (HARQ) acknowledgement (HARQ-ACK) message;
- and
- transmit circuitry configured to transmit the early termination of repeated transmissions message during the retransmission window.
An apparatus of a user equipment (UE) for machine-type communications (MTC) comprising:
- control circuitry configured to:
- process retransmission information from an evolved node B (eNB) based on a measured channel quality associated with a Physical Downlink Shared Channel (PDSCH);
- and
- process one or more transmissions of block data on a Physical Uplink Shared Channel (PUSCH) from the eNB during a retransmission window;
- determine that the block data has been successfully decoded at the UE using the one or more transmissions of the block data;
- and
- generate, in response to the determination that the block data has been successfully decoded, an early termination of repeated transmissions message comprising a hybrid automatic repeat request (HARQ) acknowledgement (HARQ-ACK) message in response to the determination that the block data has been successfully decoded.
Dependencies are inferred from the claim text.