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Wireless access and backhaul joint resource allocation method for in-band full-duplex system

A wireless access and resource allocation technology, applied in transmission systems, digital transmission systems, duplex signal operations, etc., can solve problems such as complex networks, difficult deployment of backhaul links, and high costs for operators

Active Publication Date: 2018-12-07
深圳快投派科技有限公司
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Problems solved by technology

[0008] In view of this, the purpose of the present invention is to provide a joint resource allocation method for in-band full-duplex system wireless access and backhaul, which solves the difficulty in backhaul link deployment caused by the ultra-dense deployment of low-power nodes, and the operator High costs and more complex networks

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  • Wireless access and backhaul joint resource allocation method for in-band full-duplex system
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  • Wireless access and backhaul joint resource allocation method for in-band full-duplex system

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Embodiment Construction

[0054] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0055] see figure 1 , figure 1 It is a schematic diagram of the scene of the in-band full-duplex system of the present invention. In the example of the present invention, a downlink transmission scenario of a two-layer dynamic heterogeneous cellular network is considered. The network is composed of a macro base station equipped with multiple antennas and several single-antenna self-backhaul small base stations within its coverage area, and all the above-mentioned The base stations share the entire possible spectrum. Self-backhaul small base stations are equipped with full-duplex hardware and have full-duplex capabilities. The wireless channel includes two parts: slow fading composed of path loss and shadow fading, and Rayleigh flat fast fading. In the figure, MUE and SUE represent macro cell users and small cell users respectively, and ...

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Abstract

The invention relates to a wireless access and backhaul joint resource allocation method for an in-band full-duplex system, and belongs to the field of mobile communication technology. The method comprises: S1, establishing an in-band full-duplex self-backhaul network architecture: a cellular heterogeneous network consisting of a multi-antenna macro base station and a plurality of single-antenna self-backhaul small base stations; S2, under the condition of maintaining network stability, maximizing the downlink user and spectrum efficiency under the network time average through the wireless access and backhaul joint resource allocation method for the in-band full-duplex backhaul system, and adjusting the values of control parameters to achieve a dynamic balance between the delay and the spectrum efficiency. The method solves the problems of difficulty in backhaul link deployment, high cost of an operator, high complexity of a network and the like due to the ultra-dense deployment of low-power nodes.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a joint resource allocation method for in-band full-duplex system wireless access and backhaul. Background technique [0002] In the research of next-generation networks, the ultra-dense deployment of low-power nodes is regarded as one of the key technologies to further improve network capacity. Ultra-dense deployment reduces the distance between access nodes, which provides us with the possibility to use a large number of frequency resources of higher frequency bands that have not been utilized in the past. Since higher frequencies mean shorter wavelengths, this also allows access nodes to be equipped with a large number of antennas, enabling greater spatial multiplexing. [0003] However, the ultra-dense deployment of low-power nodes means that the network will deploy denser backhaul links than before. The cost of deploying these backhaul links is unaffordable for o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/309H04B17/382H04L5/14
CPCH04L5/1438H04B17/309H04B17/382
Inventor 陈前斌魏延南周钰曹睿王兆堃唐伦
Owner 深圳快投派科技有限公司
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