METHOD AND APPARATUS FOR IMPROVEMENT OF TDD INTER-BAND CARRIER AGGREGATION IN A WIRELESS COMMUNICATION SYSTEM
First Claim
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1. A method of Time Division Duplex (TDD) inter-band carrier aggregation in a wireless communication system comprising:
- aggregating multiple cells with different Time Division Duplex (TDD) uplink (UL)-downlink (DL) configurations;
transmitting a Physical Uplink Share Channel (PUSCH) transmission on a first cell, the subframe for Hybrid Automatic Repeat and reQuest (HARQ) feedback reception, for the PUSCH in a first cell colliding with a UL subframe in a second cell; and
performing one ofsetting the corresponding HARQ feedback to Acknowledge (ACK);
flushing the corresponding HARQ buffer; and
changing the corresponding HARQ feedback subframe for the PUSCH to another subframe.
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Abstract
A method and apparatus for TDD inter-band carrier aggregation in a wireless communication system includes performing aggregating multiple cells with different TDD UL-DL configurations, transmitting a PUSCH transmission on a first cell, the subframe for HARQ feedback reception for the PUSCH in a first cell colliding with a UL subframe in a second cell, and performing one of setting the corresponding HARQ feedback to ACK, flushing the corresponding HARQ buffer, and changing the corresponding HARQ feedback subframe for the PUSCH to another subframe.
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Citations
20 Claims
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1. A method of Time Division Duplex (TDD) inter-band carrier aggregation in a wireless communication system comprising:
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aggregating multiple cells with different Time Division Duplex (TDD) uplink (UL)-downlink (DL) configurations; transmitting a Physical Uplink Share Channel (PUSCH) transmission on a first cell, the subframe for Hybrid Automatic Repeat and reQuest (HARQ) feedback reception, for the PUSCH in a first cell colliding with a UL subframe in a second cell; and performing one of setting the corresponding HARQ feedback to Acknowledge (ACK); flushing the corresponding HARQ buffer; and changing the corresponding HARQ feedback subframe for the PUSCH to another subframe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communication device for use in a wireless communication system, the communication device comprising:
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a control circuit; a processor installed in the control circuit to control the control circuit; a memory installed in the control circuit and coupled to the processor; wherein the processor is configured to execute a program code stored in the memory to; aggregate multiple cells with different Time Division Duplex (TDD) uplink (UL)-downlink (DL) configurations; transmit a Physical Uplink Share Channel (PUSCH) transmission on a first the subframe for Hybrid Automatic Repeat and reQuest (HARQ) feedback reception for the PUSCH in first cell colliding with a UL subframe in a second cell; and perform one of; set the corresponding HARQ feedback to Acknowledge (ACK); flush the corresponding HARQ buffer; and change the corresponding HARQ feedback subframe for the PUSCH to another subframe. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification