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Method and device for determining channel sensing threshold in uplink channel access

A technology of channel perception and channel access, which is applied in the field of determining the threshold of channel perception, which can solve problems such as overly conservative thresholds and adverse effects on LAA performance, and achieve the effects of improving efficiency, avoiding exposed node problems, and avoiding hidden node problems

Active Publication Date: 2021-02-02
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, if the threshold is defined based on the maximum transmit power, it makes the determined threshold too conservative and adversely affects the LAA performance

Method used

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  • Method and device for determining channel sensing threshold in uplink channel access
  • Method and device for determining channel sensing threshold in uplink channel access
  • Method and device for determining channel sensing threshold in uplink channel access

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Embodiment Construction

[0050] The principles of the disclosure will be described below with reference to several example embodiments illustrated in the accompanying drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand and implement the present disclosure, rather than to limit the scope of the present disclosure in any way.

[0051] figure 1 A flowchart of a method 100 for determining a channel perception threshold in LAA uplink channel detection according to an embodiment of the present disclosure is shown. The method 100 comprises main steps S110 to S120.

[0052] At step S110, determining one or more parameters associated with the user equipment; and

[0053] At step S120, based on at least one of the one or more parameters, a channel perception threshold for the user equipment is determined.

[0054] According to an embodiment of the present disclosure, determining one or more parameters associated with the user equ...

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Abstract

Embodiments of the present disclosure disclose a method and device for determining a channel perception threshold in authorization-assisted access uplink channel detection, the method includes determining one or more parameters associated with user equipment; and based on the At least one of the one or more parameters is used to determine a channel perception threshold for the user equipment. The method for determining the threshold can realize the determination of an appropriate threshold, flexible channel access, and balance of channel access opportunities among multiple wireless access points.

Description

technical field [0001] Embodiments of the present disclosure relate to a method and device for determining a channel sensing threshold in uplink channel access of authorized assisted access. Background technique [0002] In 3GPP LTE Rel-13, unlicensed spectrum is used for downlink (DL) transmission in License Assisted Access (LAA). A listen-before-talk (LBT) is defined for LAA DL, which requires the base station (eNB) to perform a channel detection procedure before transmission, and perform transmission only if the procedure is successful. Part of the channel detection process is that the eNB needs to perform energy detection and compare the received energy with an energy threshold to determine if the channel is idle for a certain period of time. The threshold can have a significant impact on the eNB's channel access opportunities, which in turn can have a significant impact on the coexistence of LAA with other networks such as WiFi or between LAA nodes. [0003] In LAA DL...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/08H04W74/00H04W72/54
CPCH04W72/0453H04W72/0473H04W74/00H04W72/542H04W74/0808H04W74/004H04B17/102H04B17/104H04W16/14H04W74/006
Inventor 谷俊嵘刘建国陶涛孟艳叶思根沈钢
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD