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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR TRANSMITTING HYBRID AUTOMATIC REPEAT AND REQUEST INFORMATION IN A WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/139405
Kind Code:
A1
Abstract:
The present disclosure relates to a communication method and system for converging a 5 th-Generation (5G) communication system for supporting higher data rates beyond a 4 th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention provides a method of a base station for supporting an inter-system handover from an evolved packet system (EPS) system to a 5th generation (5G) system. The present application provides a method for transmitting HARQ-ACK information, including steps of: detecting, by a UE, a PDCCH and receiving a PDSCH scheduled by the PDCCH; for one slot of one carrier, determining, according to a configured slot pattern and a configured PDCCH monitoring occasion, the HARQ-ACK occasion and the number of HARQ-ACK bits occupied by the one slot; and, generating, by the UE, an HARQ-ACK codebook according to the HARQ-ACK occasion and the number of HARQ-ACK bits occupied by the one slot, and transmitting HARQ-ACK information. By the method of the present invention, the number of HARQ-ACK bits to be fed back within each slot is reduced, and the feedback overhead is reduced; moreover, the number of bits of the generated HARQ-ACK codebook changes semi-statically, so that the confusion between a base station and a UE is avoided.

Inventors:
WANG YI (CN)
LI YINGYANG (CN)
Application Number:
KR2019/000456
Publication Date:
July 18, 2019
Filing Date:
January 11, 2019
Export Citation:
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Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04L1/18; H04L5/00; H04W72/04
Foreign References:
US20170318566A12017-11-02
Other References:
CATT: "Discussion on HARQ management and HARQ-ACK feedback", RL-1717834, 3GPP TSG RAN WG1 MEETING #90BIS, 3 October 2017 (2017-10-03), Prague, CZ, XP051352789
NTT DOCOMO, INC.: "DL/UL scheduling and HARQ management", RL-1720822, 3GPP TSG RAN WG1 MEETING #91, 18 November 2017 (2017-11-18), Reno, USA, XP051370251
ZTE ET AL.: "On the support of different numerologies in one PUCCH group", RP-172390, 3GPP TSG RAN MEETING 78, 11 December 2017 (2017-12-11), Lisbon, Portugal, XP051670083
SAMSUNG: "HARQ Management and Feedback", RI-1720340, 3GPP TSG RAN WG1 MEETING #91, 18 November 2017 (2017-11-18), Reno, USA, XP051369925
Attorney, Agent or Firm:
YOON & LEE INTERNATIONAL PATENT & LAW FIRM (KR)
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