Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Competitive resource determining method and device

A technology for competing resources and determining methods, applied in the field of competing resource determining methods and devices, which can solve problems such as waste of equipment scheduling resources and affecting equipment access performance, and achieve the effect of reducing waste and increasing access probability

Active Publication Date: 2017-02-22
ZTE CORP
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method and device for determining competing resources to at least solve the problem in the related art that CCA detection affects device access performance and easily causes waste of device scheduling resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Competitive resource determining method and device
  • Competitive resource determining method and device
  • Competitive resource determining method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0185] In this preferred embodiment, the station (including base station, user equipment (UE), home base station, and relay station.) LBT mode of frame-based equipment (Frame-based Equipment, referred to as FBE for short) and load-based equipment (Load-based Equipment) , referred to as LBE) for a brief introduction to the way of LBT.

[0186] Figure 5 It is a schematic diagram of the LBT mechanism of the frame-based device FBE according to the preferred embodiment of the present invention, such as Figure 5 As shown, for FBE, it has a fixed transmission frame structure. The channel occupation time and idle period constitute a fixed frame period. The device performs CCA detection during the idle period. When the channel is detected to be idle, data transmission can be performed immediately. Otherwise, CCA detection is performed again in the idle period of the next fixed frame period. For FBE in Europe, the channel occupancy time is 1 ms to 10 ms, and the idle period is at le...

Embodiment 2

[0189] This preferred embodiment describes in detail the method for determining and adjusting the frequency domain position of the UE during each CCA execution process provided by the present invention when the UE executes CCA using FBE.

[0190] For the way of FBE, UE performs LBT using the description of FBE in preferred embodiment 1, that is, only performs initial CCA once in each frame period, for example, if the frame period is 1 ms, UE can perform CCA in every subframe. For services with higher priority, such as retransmission services or feedback related information, or when the base station schedules multiple UEs to multiplex and transmit in the same subframe, or when the UE itself finds that the scheduled RB is smaller than the uplink bandwidth, this LBT method is preferred. .

[0191] In this mode, the starting time domain position for UE to execute CCA is a predefined value, which is the duration of one CCA at the end of the subframe or frame boundary, or the length...

Embodiment 3

[0213] This preferred embodiment describes the implementation process of the method for determining and adjusting the CCA frequency domain position provided by the present invention when the UE is scheduled to perform CCA in the LBT mode of LBE.

[0214] The specific process of LBE is as described in Implementation 1. The CCA process before data transmission includes multiple CCAs. According to the present invention, the frequency domain positions of the multiple CCAs can be adjusted according to rules or detection results. The specific process is as follows:

[0215] The UE performs initial CCA at the scheduled frequency domain resource location, or performs CCA in the frequency domain range of the virtual bandwidth centered on the center of the scheduled resource. The time domain length of the CCA is 34 microseconds, or 20 microseconds.

[0216] If successful, the second CCA still adopts the same CCA frequency domain range as the first one, until the N value is reduced to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a competitive resource determining method and device, and the method comprises the step that equipment determines or adjusts the frequency domain position or frequency domain range of CCA (clear channel assessment) of resource competition, wherein the frequency domain position or frequency domain range is a part of a system bandwidth at a non-authorized carrier wave. The system solves problems that the CCA detection affects the access performance of the equipment and is liable to cause the waste of scheduling resources of the equipment, improves the CCA access probability, and reduces the waste of scheduling resources.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for determining contention resources. Background technique [0002] In the evolution process of Long-Term Evolution (LTE for short), the LTE Rel-13 version started to be researched in September 2014, and one of the important contents is that the LTE system uses an unlicensed carrier to work. This technology will enable the LTE system to use existing unlicensed carriers, greatly enhance the potential spectrum resources of the LTE system, and enable the LTE system to obtain lower spectrum costs. [0003] However, LTE will face many problems when using unlicensed carriers. First, in some countries and regions, there are corresponding control policies for the use of unlicensed spectrum. For example, a device must perform Listen Before Talk (LBT for short, also known as Clear Channel Assessment (CCA)) before using an unlicensed carrier to send data. Data is sen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W72/12H04W74/08
CPCH04W72/12H04W74/0816H04W72/0453H04W72/0446H04W72/52
Inventor 李新彩苟伟赵亚军杨玲
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com