Title:
METHOD AND APPARATUS FOR IMPROVING HARQ IN A NON-TERRESTRIAL NETWORK
Document Type and Number:
WIPO Patent Application WO/2021/020735
Kind Code:
A1
Abstract:
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Disclosed is a method of operating a base station in a non-terrestrial network telecommunication system, comprising the steps of: the base station detecting a block fading condition in a communication channel; the base station determining an average spectral efficiency value and reporting this to a user equipment in communication with the base station; and the base station allocating a modulation and coding scheme and activating a pre-emptive HARQ operation wherein the pre-emptive HARQ operation comprises the steps of: the base station determining an average fade duration; and sending multiple copies of a given data packet separated by a time at least equal to the average fade duration, with an MCS level matching a signal level associated with a non-fading condition of the communication channel.
Inventors:
HUNUKUMBURE MYTHRI (GB)
Application Number:
PCT/KR2020/008098
Publication Date:
February 04, 2021
Filing Date:
June 23, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04L1/18; H04B7/06; H04B7/185; H04B17/309; H04L1/00; H04W72/12
Domestic Patent References:
| WO2017057206A1 | 2017-04-06 |
Foreign References:
| US20060270360A1 | 2006-11-30 | |||
| US20100246730A1 | 2010-09-30 |
Other References:
SAMSUNG: "HARQ procedure in NTN", 3GPP DRAFT; R1-1906954_NTN_HARQ_SS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP),, 3 May 2019 (2019-05-03), XP051708989
MEDIATEK INC.: "Summary Delay-tolerant re-transmission mechanisms in NR-NTN", 3GPP DRAFT; R1-1905733-MEDIATEK-SUMMARY DELAY-TOLERANT TRANSMISSION MECHANISMS IN NR-NTN-V02, 3RD GENERATION PARTNERSHIP PROJECT (3GPP),, 10 April 2019 (2019-04-10), XP051707790
SAMSUNG: "HARQ procedure in NTN", 3GPP DRAFT, R1-1906954, 13 May 2019 (2019-05-13)
See also references of EP 4005129A4
MEDIATEK INC.: "Summary Delay-tolerant re-transmission mechanisms in NR-NTN", 3GPP DRAFT; R1-1905733-MEDIATEK-SUMMARY DELAY-TOLERANT TRANSMISSION MECHANISMS IN NR-NTN-V02, 3RD GENERATION PARTNERSHIP PROJECT (3GPP),, 10 April 2019 (2019-04-10), XP051707790
SAMSUNG: "HARQ procedure in NTN", 3GPP DRAFT, R1-1906954, 13 May 2019 (2019-05-13)
See also references of EP 4005129A4
Attorney, Agent or Firm:
KWON, Hyuk-Rok et al. (KR)
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