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Coordinated transmission method between base stations and first base station

A technology for coordinating transmission and between base stations, which is applied in the field of communication and can solve problems such as reducing channel occupancy time

Inactive Publication Date: 2020-04-14
SHANGHAI RES CENT FOR WIRELESS COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This proposal is aimed at the adjustment of LBT parameters in a single LTE-U base station. Although it can improve the QoS of a single LTE-U base station, it will reduce the channel occupation time

Method used

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  • Coordinated transmission method between base stations and first base station
  • Coordinated transmission method between base stations and first base station
  • Coordinated transmission method between base stations and first base station

Examples

Experimental program
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Embodiment Construction

[0065] figure 1 A schematic diagram of a network system architecture applicable to the embodiment of the present invention, such as figure 1 As shown, the network system includes two systems: a first system and a second system, wherein the first system may be an LTE system based on an unlicensed carrier, the second system may be a WiFi system, and the LTE system based on an unlicensed carrier A base station may be called an LTE-U base station, and an access device in a WiFi system may be called a WiFi access point. figure 1 The network system shown includes two LTE-U base stations and 1 WiFi access point. The coverage of the WiFi access point overlaps with both LTE-U base station 1 and LTE-U base station 2. Therefore, the WiFi access point It constitutes interference to both LTE-U base station 1 and LTE-U base station 2. It should be noted that the LTE system based on the unlicensed carrier may also include more base stations, and the WiFI system may also include more access...

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PUM

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Abstract

The present invention provides a coordinated transmission method between base stations and a first base station, including: the first base station determines that the event trigger condition satisfies a preset condition, sends the first coordination information to at least one interfering base station, and receives the second coordinating information sent by at least one interfering base station. coordinate information, and then, the first base station calculates the target contention window of the first base station according to a preset optimization algorithm according to the first interference information, the second interference information sent by each interfering base station, and the number of common interfering access points acquired in advance length, adjusts the contention window to the target contention window. Since the first base station calculates the target contention window length to be adjusted based on the coordination information of multiple base stations in the system, it can be adjusted according to the QoS requirements and load of each base station under the premise of ensuring fair coexistence with WiFi access points. The size of the competition window of each base station enables effective utilization of unlicensed spectrum resources.

Description

technical field [0001] The present invention relates to communication technology, in particular to an inter-base station coordinated transmission method and a first base station. Background technique [0002] In recent years, with the development of wireless communication technology and the popularization of smart terminals, the demand of mobile users for data communication has increased significantly, and the licensed frequency band, which is expensive and has limited bandwidth, can no longer meet the needs of users. All mobile operators and equipment manufacturers have turned their targets to unlicensed frequency bands with relatively abundant resources. The large-scale deployment of WIreless-Fidelity (referred to as WiFi) systems uses unlicensed frequency bands. In addition, various mobile operators Both manufacturers and equipment manufacturers are seeking more technologies that use unlicensed frequency bands to carry more data traffic for mobile services. For example, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W28/04H04W72/08H04W72/54
CPCH04W28/0236H04W28/0242H04W28/04H04W72/543H04W72/541H04W72/542
Inventor 李扬张梦莹周婷杨旸胡宏林王海峰
Owner SHANGHAI RES CENT FOR WIRELESS COMM