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Method for synchronously accessing unlicensed medium by small cells in a group authorized assisted access (laa) network

An authorization-assisted access and network technology, applied in the field of unauthorized media, can solve the problems of large interference and high deployment density of small cells

Active Publication Date: 2020-12-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that the small cell deployment density of LAA may be high, and the WLAN point density may also be high, so the interference may be large

Method used

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  • Method for synchronously accessing unlicensed medium by small cells in a group authorized assisted access (laa) network
  • Method for synchronously accessing unlicensed medium by small cells in a group authorized assisted access (laa) network
  • Method for synchronously accessing unlicensed medium by small cells in a group authorized assisted access (laa) network

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Embodiment Construction

[0025] The challenge of implementing LAA can be how to: maximize airtime share; achieve spectrally efficient transmission; while minimizing coexistence overhead. According to the 3GPP standard, it may be preferred that LPNs adjacent to each other have synchronous transmission windows, which may help to achieve a multiplexing factor of 1 and simplify interference management within the operator.

[0026] One approach involves each transmission point (TP) independently accessing unlicensed spectrum. In this approach, also known as Listen-Before-Talk (LBT), each TP accesses the medium whenever it is determined that the medium is available (eg, using energy detection). A TP can access the medium without reserving the medium, resulting in WLAN nodes that may not be aware of the use of the TP and may transmit during TP transmission, thereby causing interference.

[0027] Optionally, the TP may reserve a transmission slot (eg, by invoking carrier sensing (CS) from a blocking WLAN nod...

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Abstract

Methods and systems for managing access of a communication resource in a licensed assisted access (LAA) network. Each transmission point (TP) of a plurality of TPs provides a first set of information indicative of expected usage of a first communication resource by each TP. Information is transmitted to the TPs to cause each TP to align usage or reservation of the first communication resource with any other TP belonging to a first radio access cluster (RAC) to which the given TP belongs, the first RAC being one in a first set of one or more RACs, wherein each of the plurality of TPs belongs to a respective RAC in the first set of RACs and each RAC in the first set of RACs contains one or more TPs.

Description

[0001] Related Application Cross Reference [0002] This application claims the benefit of U.S. Patent No. 14 / 869,617, filed September 29, 2015, entitled "Method for Synchronous Access to Unlicensed Medium by Small Cells in a Packet-Assisted Access (LAA) Network" priority of the application, the entire contents of which are hereby incorporated by reference. technical field [0003] The present disclosure relates to methods and devices for accessing unlicensed media in a licensed assisted access (LAA) network. Background technique [0004] There has been interest in increasing the use of unlicensed spectrum. There is interest in aggregating unlicensed spectrum into licensed spectrum to increase network resources when needed. Licensed Assisted Access (LAA) allows access to unlicensed spectrum with the assistance of a licensed network. LAA aims at shifting the Mobile Broadband (MBB) air interface to unlicensed spectrum by aggregating unlicensed component carriers (CCs) at th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W16/10H04W16/14H04W48/18
Inventor 默罕默德·阿代尔·赛勒穆阿民·玛瑞夫
Owner HUAWEI TECH CO LTD