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Base stations and methods

A technology of base stations and information bits, applied in the field of communication systems, capable of solving problems such as limited flexibility and/or efficiency

Pending Publication Date: 2021-04-13
SHARP KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the communication structure used may only provide limited flexibility and / or efficiency

Method used

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  • Base stations and methods
  • Base stations and methods
  • Base stations and methods

Examples

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Embodiment Construction

[0048] The present invention describes a base station for communicating with user equipment (UE). The base station may include higher layer processing circuitry configured to transmit first radio resource control (RRC) configuration information and second RRC configuration information. The first RRC configuration information may indicate that a Physical Downlink Shared Channel Hybrid Automatic Repeat Request Acknowledgment (PDSCH HARQ-ACK) codebook is semi-static. The second RRC configuration information may indicate that the maximum number of codewords scheduled by downlink control information (DCI) is 2. The base station may further include transmission circuitry configured to transmit the PDSCH including only the first transport block to the UE after the channel access procedure. The base station may further include a receiving circuit configured to receive HARQ-ACK feedback from the UE, the HARQ-ACK feedback including at least the first HARQ-ACK information bit and the se...

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Abstract

A base station which communicates with a user equipment (UE) is described. The RRC configuration information may indicate that a maximum number of codewords scheduled by DCI is two. The base station may comprise transmitting circuitry configured to, after a channel access procedure, transmit, to the UE, a PDSCH which contains only a first transport block. The base station may further comprise receiving circuitry configured to receive, from the UE, a HARQ-ACK feedback including at least a first HARQ-ACK information bit and a second HARQ-ACK information bit. The first HARQ-ACK information bit may correspond to the first transport block of the PDSCH. The second HARQ-ACK information bit may be set to NACK. A contention window for the channel access procedure may be adjusted using the HARQ-ACK feedback, wherein the second HARQ-ACK information bit may be ignored.

Description

technical field [0001] The present disclosure generally relates to communication systems. More specifically, the present disclosure relates to new signaling, procedures, user equipment (UE), base stations and methods. This patent application claims priority from Japanese Patent Application JP2018-140285 filed on July 26, 2018. The contents of this Japanese patent application are hereby incorporated by reference into the present application. Background technique [0002] To meet consumer demands and to improve portability and convenience, wireless communication devices have become smaller and more powerful. Consumers have become dependent on wireless communication devices and expect reliable service, extended coverage areas, and enhanced functionality. A wireless communication system may provide communication for a plurality of wireless communication devices, each of which may be served by a base station. A base station may be a device that communicates with wireless comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W28/04
CPCH04L5/0055H04L5/0053H04L1/1614H04L1/1887H04L1/1858H04W72/0446H04W72/1273H04W72/232H04W72/231H04L1/1812
Inventor 野上智造中岛大一郎铃木翔一大内涉吉村友树李泰雨林会发
Owner SHARP KK