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Base station and user equipment for early-data transmission in a random access procedure

A technology for user equipment and random access, which is applied in the field of base stations and user equipments that perform early data transmission in random access procedures, and can solve problems such as consumption, excessive power, unfavorable data transmission efficiency and resource utilization rate, etc.

Active Publication Date: 2020-02-21
INSTITUTE FOR INFORMATION INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the random access procedure under the framework of the narrow-band Internet of Things uses repeated transmission technology to increase the transmission coverage. Such a random access procedure will consume more power and time, and is not conducive to the efficiency of data transmission. and resource utilization

Method used

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  • Base station and user equipment for early-data transmission in a random access procedure
  • Base station and user equipment for early-data transmission in a random access procedure
  • Base station and user equipment for early-data transmission in a random access procedure

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Embodiment Construction

[0049] The present invention will be described below through multiple embodiments, but these embodiments are not intended to limit the present invention to be implemented only according to the described operations, environments, applications, structures, processes or steps. Elements not directly related to the present invention are not shown in the drawings, but may be implied in the drawings. In the drawings, the size of each element and the ratio between each element are just examples, not intended to limit the present invention. Unless otherwise specified, in the following content, the same (or similar) element symbols may correspond to the same (or similar) elements. In the case where it can be realized, unless otherwise specified, the number of each element described below may be one or more.

[0050] The terms used herein are only used to describe the embodiments and are not intended to limit the present invention. The singular form "a" and "a" are intended to include ...

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Abstract

A base station transmits a paging message carrying a contention-free early-data transmission indication to a user equipment, and transmits a random access response message carrying early downlink datato the user equipment in response to a random access request message transmitted by the user equipment in a random access procedure. A base station transmits a paging message carrying a contention-based early-data transmission indication to the user equipment, and transmits an RRC response message carrying early downlink data to the user equipment in response to an RRC request message transmittedby the user equipment in a random access procedure. In a random access procedure, user equipment generates and transmits a scheduling request message to a base station after receiving early downlinkdata transmitted by the base station, and transmits uplink data corresponding to the early downlink data to the base station according to an uplink grant transmitted by the base station.

Description

technical field [0001] Embodiments of the present invention relate to a base station and a user equipment. More specifically, the embodiments of the present invention relate to a base station and user equipment for early data transmission in a random access procedure. Background technique [0002] In many wireless communication systems, a user equipment can establish a connection with a base station through a random access procedure, so that uplink data transmission and downlink data transmission can be performed between the two after the connection is established. [0003] For example, under the framework of Narrow Band Internet of Things (NB-IoT), user equipment can establish a connection with the base station based on the random access procedure stipulated by Long Term Evolution (LTE) . The random access procedure includes the transmission of the following five messages, in order: the user equipment transmits a random access request message (random access request messag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08H04W72/12
CPCH04W74/0833H04W72/21H04W74/006H04W68/02H04L1/1812H04W76/27H04W72/20H04W72/23
Inventor 林奕廷汪海瀚
Owner INSTITUTE FOR INFORMATION INDUSTRY