Controlling communication of data between devices supporting multiple retransmission protocol processes

Patent metadata

Field	Value
Publication number	US-10348453-B2
Application number	US-201314429171-A
Country	US
Kind code	B2
Filing date	Oct 21, 2013
Priority date	Nov 2, 2012
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A method controlling wireless communication of a data block from a terminal device to a base station includes: making a first uplink transmission for the data block in association with a first retransmission protocol process and obtaining a corresponding first acknowledgement indication indicating whether the data block has been successfully communicated to the base station; making a second uplink transmission for the data block in association with a second retransmission protocol process and obtaining a corresponding second acknowledgement indication, the second transmission initiated before the first acknowledgement indication is obtained; and determining whether to avoid scheduling retransmission of data for the data block in association with the first retransmission protocol process based on the first and second responses, avoiding data retransmission in association with the first retransmission protocol process if either the first or second acknowledgement indications indicate the data block has been successfully communicated to the base station.

First claim

The invention claimed is:

1. A method of operating a base station for controlling communication of a data block from a terminal device to the base station in a wireless telecommunications system supporting multiple parallel retransmission protocol processes, the method comprising;
receiving from the terminal device a first transmission of data for the data block in association with a first retransmission protocol process and transmitting to the terminal device corresponding first response signaling for indicating whether the data block has been successfully received in response thereto, the first transmission being in a first bundle of a first plurality of transmission time intervals (TTIs);
receiving from the terminal device a second transmission of the data for the data block received in the first transmission in association with a second retransmission protocol process and transmitting to the terminal device corresponding second response signaling in response thereto, wherein receiving the second transmission begins immediately after the first transmission and before the first response signaling is transmitted, the second transmission being in a second bundle of a second plurality of TTIs equal in number to the first plurality of TTIs, the first response signaling being transmitted using a last TTI of the second plurality of TTIs, and wherein the method further comprises:
determining whether to avoid scheduling for a retransmission of data for the data block from the terminal device in association with the first retransmission protocol process by taking account of whether or not the data block has been successfully received by the base station in association with the second retransmission protocol process, wherein
an uplink radio frame structure for the wireless telecommunications system comprises a series of TTIs, and the first and second transmissions of data for the data block comprise transmissions in respective bundles of TTIs.

2. The method of claim 1 , wherein determining whether to avoiding scheduling for a retransmission of data for the data block from the terminal device in association with the first retransmission protocol process by taking account of whether or not the data block has been successfully received by the base station in association with the second retransmission protocol process comprises avoiding scheduling for a retransmission of data for the data block from the terminal device in association with the first retransmission protocol if either of the first response signaling or the second response signaling indicates the data block has been successfully received by the base station.

3. The method of claim 1 , wherein the respective transmissions in different TTIs of the first or second bundle of TTIs comprise transmissions of different bits for the data block.

4. The method of claim 3 , wherein the different bits for the data block transmitted in the different TTIs of the first or second bundle of TTIs comprise different redundancy versions derived for the data block.

5. The method of claim 1 , wherein the first and second transmissions of data for the data block comprise transmissions of the same bits for the data block.

6. The method of claim 1 , wherein the first and second transmissions of data for the data block comprise transmissions of different bits for the data block.

7. The method of claim 6 , wherein the different bits for the data block transmitted in the first and second transmissions of data for the data block comprise different redundancy versions derived for the data block.

8. The method of claim 1 , further comprising receiving from the terminal device a further transmission of data for the data block in association with a further retransmission protocol process and transmitting to the terminal device corresponding further response signaling in response thereto.

9. The method of claim 8 , wherein reception of the further transmission begins before the second response signaling is transmitted to the terminal device, and the method further comprises determining whether to avoid scheduling for a retransmission of data for the data block from the terminal device in association with the first and the second retransmission protocol processes by taking account of whether or not the data block has been successfully received by the base station in association with the further retransmission protocol process.

10. The method of claim 9 , wherein determining whether to avoid scheduling for a retransmission of data for the data block from the terminal device in association with the first and the second retransmission protocol processes by taking account of whether or not the data block has been successfully received by the base station in association with the further retransmission protocol process comprises avoiding scheduling for a retransmission of data for the data block from the terminal device in association with the first and the second retransmission protocol processes if any of the first response signaling or the second response signaling or the further acknowledgement indicates the data block has been successfully received by the base station.

11. The method of claim 8 , wherein the further transmission of data for the data block in association with the further retransmission protocol process is received before the first transmission of data for the data block in association with the first retransmission protocol process, and wherein the method further comprises avoiding scheduling for a retransmission of data for the data block from the terminal device in association with the further retransmission protocol process if either of the first response signaling or the second response signaling indicates the data block has been successfully received by the base station.

12. The method of claim 1 , further comprising avoiding scheduling for a retransmission of data for the data block from the terminal device in association with the second retransmission protocol process if the first response signaling indicates the data block has been successfully communicated to the base station.

13. The method of claim 1 , further comprising conveying to the terminal device information using the second response signaling which is different from information indicating whether the data block has been successfully received by the base station in the event the first response signaling already indicates the data block has been successfully received by the base station.

14. The method of claim 13 , wherein the information which is different from information indicating whether the data block has been successfully received by the base station comprises an indication that the terminal device should modify one or more parameters associated with subsequent transmissions of data to the base station.

15. The method of claim 14 , wherein the one or more parameters relates to one or more elements from the group comprising: a modulation coding scheme, a selection of bits for transmission from a data block, an instruction to transmit a reduced amount of data for a data block, and an instruction to transmit data from multiple data blocks in associated with a single protocol transmission process.

16. The method of claim 1 , further comprising receiving from the terminal device a first transmission of data from a different data block in association with a third retransmission protocol process and transmitting to the terminal device corresponding third response signaling for indicating whether the different data block has been successfully communicated to the base station in response thereto; receiving from the termin

Assignees

• Sony Corp

Inventors

• Webb Matthew
• Wakabayashi Hideji

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04L1/1822

  involving configuration of automatic repeat request [ARQ] with parallel processes · CPC title

• H04L1/0066

  Parallel concatenated codes · CPC title

• H04L1/1812 Primary

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04W88/08

  Access point devices · CPC title