Pretreating method, device and system in frequency domain resource scheduling

A frequency domain resource scheduling and preprocessing technology, applied in multi-frequency code systems, communication between multiple stations, advanced technologies, etc., can solve the problems of long period of spectrum characteristics, full channel, etc., and reduce power consumption. , The effect of reducing the terminal transmission capability and improving the utilization rate of frequency domain resources

Active Publication Date: 2010-07-14
SHANGHAI HUAWEI TECH CO LTD
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Problems solved by technology

[0008] However, in the first transmission method, the Sounding signal transmitted by the terminal needs to occupy the entire bandwidth of the channel, so the terminal has high requirements on the transmission capability, and the terminal is required to have the ability to transmit high-power signals; the second transmission method requires the terminal to transmit several times. Small-bandwidth Sounding signals to traverse the entire bandwidth, and the period for the network side to obtain the spectrum characteristics of the entire bandwidth of the channel between the terminal and the terminal is relatively long

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  • Pretreating method, device and system in frequency domain resource scheduling
  • Pretreating method, device and system in frequency domain resource scheduling
  • Pretreating method, device and system in frequency domain resource scheduling

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[0038] Hereinafter, the implementation of the frequency domain resource scheduling method, device and system according to the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0039] image 3 It is a schematic flowchart of a preprocessing method in frequency domain resource scheduling according to an embodiment of the present invention, image 3 The execution subject of the shown method is a device on the network side, for example, an entity capable of communicating with a terminal, such as Node B and eNode B, which is not limited in this embodiment of the present invention.

[0040] In the embodiment of the present invention, the entire bandwidth of the channel between the network side and the terminal is pre-divided into at least two subbands; wherein, the divided bandwidth of each subband is preferably not greater than (that is, less than or equal to) the coherent bandwidth of the channel. The size of the cohere...

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Abstract

The invention discloses a pretreating method, a device and a system in frequency domain resource scheduling. The method comprises the following steps of: dividing the whole bandwidth of a channel between a network side and a terminal into at least two sub-bands, and receiving Sounding signals sent by the terminal on a preset bandwidth of each sub-band; determining the channel characteristic of each sub-band according to the Sounding signals; and selecting one or more sub-bands from the at least two sub-bands according to the channel characteristic to schedule frequency domain resource for the terminal in the bandwidth range of the one or more sub-bands. The pretreating method, the device and the system in the frequency domain resource scheduling can reduce the requirement on the emissivity of the terminal and the power consumption of the terminal in the frequency domain resource scheduling, shorten the period for obtaining the bandwidth range spectrum characteristic for carrying out the frequency domain resource scheduling by the network side and improve the utilization rate of the frequency domain resource.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a preprocessing method, device and system in frequency domain resource scheduling. Background technique [0002] OFDM (Orthogonal Frequency Division Multiplexing) technology has been widely concerned and applied because of its high spectrum efficiency and anti-multipath characteristics, and has gradually become one of the key technologies in wireless communication systems. The main idea of ​​OFDM is: divide a given channel into several orthogonal sub-channels in the frequency domain, use a sub-carrier for modulation on each sub-channel, and transmit each sub-carrier in parallel. [0003] In the OFDM system, each sub-channel is relatively flat, and the narrowband transmission is performed on each sub-channel. The sub-channel bandwidth is smaller than the coherent bandwidth of the channel. Therefore, the interference between signal waveforms can be greatly eliminated. Ano...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04L27/26H04B7/26
CPCY02B60/50Y02D30/70
Inventor 苏威吴松峻张彦
Owner SHANGHAI HUAWEI TECH CO LTD
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