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Control information transmission method, equipment and communication system

A technology for controlling information and transmission methods, which is applied in the field of communication, and can solve problems such as long RRC signaling update time, system performance degradation, and weak semi-static configuration flexibility

Inactive Publication Date: 2018-02-23
SHENZHEN GIONEE COMM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether the terminal supports cross-carrier scheduling is configured through the field of Radio Resource Control Channel (Radio Resource Control, RRC) signaling. Since the update time of RRC signaling is long, the flexibility of this semi-static configuration is not strong, making System performance drops

Method used

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  • Control information transmission method, equipment and communication system
  • Control information transmission method, equipment and communication system
  • Control information transmission method, equipment and communication system

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Experimental program
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Embodiment approach

[0101] As an optional implementation, the method also includes:

[0102] When the first scheduling method is the self-scheduling, the terminal monitors the physical downlink control channel PDCCH in the cell of the terminal; or,

[0103] When the first scheduling mode is the cross-carrier scheduling, the terminal monitors a Physical Downlink Control Channel (PDCCH) in a scheduling cell of the terminal.

[0104] In this optional implementation, the terminal can determine the location of the physical downlink control channel PDCCH (the current cell or the scheduling cell) according to the first scheduling method (self-scheduling or cross-carrier scheduling), and then in the terminal's own cell or scheduling The cell monitors the physical downlink control channel PDCCH.

[0105] As another optional implementation manner, the method further includes:

[0106] In the case where the adjusted scheduling method is the self-scheduling, the terminal monitors the physical downlink cont...

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Abstract

The embodiment of the invention discloses a control information transmission method, equipment and a communication system. The method comprises the following steps: determining a first scheduling wayfor performing uplink data scheduling at present for a terminal, wherein the first scheduling way includes self-scheduling or cross-carrier scheduling; monitoring a plurality of parameters in a wireless communication network; dynamically adjusting the first scheduling way according to a monitoring result of the plurality of parameters in the wireless communication network; transmitting control information carrying an adjusted scheduling way to the terminal; and subsequently performing uplink data scheduling for the terminal in the adjusted scheduling way. Through implementation of the controlinformation transmission method, the equipment and the communication system, the system performance can be enhanced.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a control information transmission method, device and communication system. Background technique [0002] A licensed assisted access (Licensed Assisted Access, LAA) system can use an unlicensed spectrum (such as a 5GHz spectrum) with the help of a licensed spectrum in a Long Term Evolution (Long Term Evolution, LTE) system. The Listen Before Talk (LBT) mechanism needs to be used on the unlicensed frequency band in the LAA system, that is, before sending data, it is necessary to monitor whether the status of the channel is idle, and if the channel is idle, the data information and control information are sent. , otherwise no transmission is performed. [0003] It is found in practice that the scheduling methods supported by the LAA system are divided into self-scheduling and cross-carrier scheduling. In the LAA system, due to the frequent changes of LBT results, it...

Claims

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Application Information

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IPC IPC(8): H04W74/00H04W74/04
CPCH04W74/00H04W74/004H04W74/04
Inventor 朱广勇
Owner SHENZHEN GIONEE COMM EQUIP
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