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Resource scheduling method based on td-lte self-organizing network

A self-organizing network and resource scheduling technology, which is applied in the field of resource scheduling based on time-division long-term evolution TD-LTE self-organizing network, can solve problems such as waste of channel resources, waste of multi-channel resources, waste of time slot channel resources, etc., to reduce The effect of data transmission delay, improving channel resource reuse rate, and alleviating network congestion

Active Publication Date: 2021-05-14
XIDIAN UNIV
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Problems solved by technology

The disadvantage of this method is that every time data transmission needs to be negotiated between nodes, a lot of time slot channel resources are wasted, and at the same time, the sending node cannot use different channels for data transmission at the same time
However, the disadvantage of this method is that although multiple channels are divided in the data transmission time slot, each node can only use one physical channel to send or receive information at the same time, and multi-channel resources are wasted.
In the control time slot, only one channel is allocated to use the channel resources of the control time slot

Method used

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  • Resource scheduling method based on td-lte self-organizing network
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  • Resource scheduling method based on td-lte self-organizing network

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] refer to figure 1 , the steps of the present invention are further described in detail.

[0043] Step 1, build a time-sharing long-term evolution TD-LTE self-organizing network.

[0044]Time-division duplex TDD is adopted, receiving and transmitting are in different time slots of the same channel, and time is used to separate the receiving and transmitting channels. The retransmission indicator channel and the format indicator channel in the TD-LTE standard physical layer are respectively removed to obtain the TD-LTE ad hoc network physical layer.

[0045] The physical layer of the TD-LTE ad hoc network includes a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH, a synchronization signal PSS / SSS, and a physical broadcast channel PBCH.

[0046] refer to figure 2 , to describe in detail the positions of channel...

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Abstract

The present invention discloses a resource scheduling method based on time-division long-term evolution TD-LTE ad hoc network. The method constructs an ad-hoc network based on time-division long-term evolution TD-LTE and utilizes the method of maximum transmission set to allocate sending nodes and receiving nodes , using the forbidden channel set method for fixed channel allocation, and supplementary allocation of dynamic resource blocks on the basis of fixed allocation. The advantages of the present invention are: using the air interface technology of Long Term Evolution TD-LTE, allowing the ad hoc network to inherit the mature physical layer of TD-LTE, and performing fixed resource allocation according to the characteristics of the TD-LTE physical layer, While improving the multiplexing rate of time slots and channels, a large amount of control message overhead is saved, and dynamic reservation allocation is performed to further improve resource utilization.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a resource scheduling method based on a TD-LTE (Time Division Long Term Evolution) ad hoc network in the technical field of wireless communication. The invention can be used for resource scheduling of the time-division long-term evolution TD-LTE self-organizing network, and completes the allocation of time-domain and frequency-domain resources occupied by nodes in the network for sending and receiving data. Background technique [0002] Self-organizing network is a network-wide synchronous, broadband multi-hop temporary autonomous system, featuring low latency, high throughput, and high capacity. Ad hoc networks are based on the mutual cooperation and coordination among numerous wireless access points distributed in a mesh shape. They have the advantages of high-speed broadband and high spectral efficiency, and have outstanding features such as dynamic self-organizati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12H04L5/00
CPCH04L5/0053H04L5/14H04W72/0446H04W72/0453H04W72/1263H04W84/18
Inventor 史琰尚东冉盛敏孙红光刘俊宇杜晓凯代良全
Owner XIDIAN UNIV
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