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A method and device for uplink scheduling

A scheduling method and a technology of scheduling instructions, which are applied in the field of communication and can solve problems such as the failure of normal transmission of uplink data

Active Publication Date: 2018-11-06
SHENZHEN COOLPAD SOFTWARE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides an uplink scheduling method and device, the purpose of which is to solve the problem that the uplink data cannot be transmitted normally when the existing LAA mechanism is used in the LTE system

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  • A method and device for uplink scheduling
  • A method and device for uplink scheduling
  • A method and device for uplink scheduling

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Embodiment Construction

[0169] The embodiment of the present application discloses an uplink scheduling method, which can be applied in a wireless communication (such as LTE) system. E.g, figure 2 It is a schematic diagram of the communication between the terminal and the base station in the LTE system, where the terminal and the base station perform data interaction through the licensed carrier. Corresponding to the licensed carrier, there is also an unlicensed spectrum in the space. The so-called unlicensed spectrum is It means that the spectrum has not been authorized by the relevant department to be occupied by a certain system, and other systems are not allowed to occupy it. For example, the frequency band of 5GHZ. At present, the carrier of this frequency band is mainly used for the transmission of signals of WIFI, Bluetooth, radar or medical systems. In order to expand the throughput of the LTE system, unlicensed carriers can be used to transmit signals of the LTE system. The purpose of the ...

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Abstract

The present application provides an uplink scheduling method, a terminal, and a base station. After receiving the first uplink scheduling instruction sent by the base station, the terminal detects whether an unlicensed carrier is occupied. When the unlicensed carrier is not occupied, the terminal executes the received The first uplink scheduling instruction, it can be seen that only when the unlicensed carrier is idle, the terminal will execute the instruction of using the unlicensed carrier to transmit uplink data, or the terminal detects whether the unlicensed carrier is occupied, obtains the detection result, and sends the detection result to the base station , when the detection result indicates that the unlicensed carrier is not occupied, the base station sends the first uplink scheduling instruction to the terminal, which is used to instruct the terminal to use the unlicensed carrier to transmit uplink data. It can be seen that only when the unlicensed carrier is idle, the base station will send the utilization The uplink scheduling instruction for the unlicensed carrier to transmit uplink data, therefore, can avoid the uplink data transmission failure caused by the unlicensed carrier being occupied.

Description

technical field [0001] The present application relates to the communication field, and in particular to an uplink scheduling method and device. Background technique [0002] Currently, with the rapid development of mobile services, the capacity of the existing wireless spectrum allocated to mobile services cannot meet the requirements. In the 3GPP Rel-13 stage, a mechanism called licensed-assisted access (LAA) was introduced. In the LAA mechanism, the transmission of mobile communication can be carried on an unlicensed carrier, such as a 5GHz frequency band. These unlicensed carriers are currently mainly used by WiFi, Bluetooth, radar or medical systems. [0003] In the LTE system, for uplink transmission, the uplink scheduling instruction and the uplink data are transmitted at different subframe positions, and the interval between the subframe for transmitting the uplink scheduling instruction and the subframe for transmitting uplink data is predefined. [0004] Therefore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/1268H04W72/21H04W72/04
Inventor 朱亚军李明菊张云飞
Owner SHENZHEN COOLPAD SOFTWARE TECH