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A method of wireless communication

A communication system and wireless resource control technology, applied in the field of wireless communication and communication, can solve problems such as wrong channel occupation, inability to ensure fair access opportunities, and inability to accurately reflect channel occupation.

Active Publication Date: 2019-12-13
ALCATEL LUCENT SHANGHAI BELL CO LTD
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AI Technical Summary

Problems solved by technology

First of all, the WiFi system mainly considers data services, while the LTE system can carry multiple services. The same UE has different requirements for channel performance when carrying different services. Determining the CCA TL value only according to the transmit power will inevitably lead to some Channels available for one service are not available for other services, resulting in wrong channel occupation
More importantly, the channel occupancy of the WiFi system is full bandwidth, and for the LTE system of frequency division multiplexing, the UE may only need to use part of the frequency band of the unlicensed carrier channel, and the UE performs CCA operation to measure all the frequency bands on the entire frequency band. The aggregated value of the transmit power of the device, so the result cannot accurately reflect the actual channel occupancy. On the other hand, different UEs can use different frequency bands of the unlicensed carrier channel at the same time, which increases the overall transmit power of the channel and causes other UEs to Reduced access opportunities to ensure fair access opportunities

Method used

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Embodiment Construction

[0040] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not limiting, and the scope of the invention is defined by the appended claims.

[0041] First, according to the application scenario of the present invention, there is an area covered by an LTE communication system, including at least one base station and UE. In addition, there are other unlicensed carriers in this area, where the unlicensed carriers can also be used by other LTE or WiFi comm...

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Abstract

A method for determining an idle channel perception threshold in a user equipment of an LTE communication system, wherein the idle channel is an unlicensed carrier channel, and the method includes: the user equipment receives a first message sent from a base station, Wherein, the first message includes a first adjustment value for adjusting the threshold; the user equipment determines the threshold according to the first adjustment value and the maximum transmission power of the user equipment.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to the technical field of wireless communication. Background technique [0002] In the field of wireless communication, generally speaking, the traditional deployment method is that the system works in a licensed frequency band (licensed band), that is, the entire spectrum resource is reserved for the system to use. Typically, the LTE communication system works using licensed frequency bands. [0003] However, with the further growth of wireless services, the requirements for the capacity and frequency band of the wireless communication system are also increased. In this case, the licensed frequency band resources of the LTE system appear to be relatively insufficient. Therefore, one of the recent research hotspots in the LTE field is how to use unlicensed frequency band resources to offload high-incidence data services. This kind of scheme is called LTE (LTE in Unl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04W74/00
CPCH04W74/006H04W16/10H04W72/542H04W72/23
Inventor 刘建国韩锋孟艳陶涛谷俊嵘武卓王钧
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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