Resource distribution information representing method based on OFDM system

A resource allocation information and orthogonal frequency division technology, which is applied in the field of resource allocation information representation based on OFDM systems, can solve problems such as overhead waste, achieve flexible resource scheduling, and reduce overhead

Inactive Publication Date: 2009-04-01
ZTE CORP
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Problems solved by technology

The biggest advantage of the bitmap-based signaling representation method is that it can support completely flexible resource scheduling, b

Method used

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  • Resource distribution information representing method based on OFDM system
  • Resource distribution information representing method based on OFDM system
  • Resource distribution information representing method based on OFDM system

Examples

Experimental program
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Embodiment Construction

[0020] The specific implementation manners of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] refer to figure 1 , illustrating a method for representing resource allocation information according to an embodiment of the present invention. Such as figure 1 As shown, the resource allocation information representation method includes the following steps: S102, divide all available subcarriers into at least one resource block; S104, divide all available subcarriers into at least one resource group, wherein each resource group includes at least one resource block and S106, representing the information about the resource group allocated to the target user through a bitmap representation method, and through a bitmap representation method or through a combination of the number of allocated continuous resource blocks and the starting position of the allocated continuous resource blocks Indicates the allocation of resource b...

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Abstract

The invention discloses a resource allocation information representation method which comprises the following steps: all the available subcarriers are divided into at least one resource block; all the available subcarriers are divided into at least one resource group, wherein, each resource group comprises at least one resource block; relevant information of the resource group which is allocated to a target user is represented by a bitmap representation method, and the allocation conditions of the resource block in the resource group are represented by the bitmap representation method or the combination of the number of the allocated continuous resource blocks and the starting positions of the allocated continuous resource blocks, or the resource allocation conditions of an orthogonal frequency division multiplexing system are represented by a high-granularity resource block bitmap representation method. By using the bitmap method of different granularities and the method for obtaining the combination representation of continuous RB quantity and the starting positions of the continuous RB in the group, the invention reduces the signaling overhead and simultaneously ensures a more flexible resource scheduling.

Description

technical field [0001] The present invention relates to the communication field, and more specifically relates to a method for expressing resource allocation information based on an orthogonal frequency division multiplexing system. Background technique [0002] Orthogonal Frequency Division Multiplexing (OFDM for short) technology is one of the main candidate solutions for future wireless communication technologies. In the frequency domain, a given channel is divided into many orthogonal subcarriers, signals are modulated on each subcarrier, and each subcarrier is transmitted in parallel. In this way, although the frequency response curve of the wireless channel is non-flat and has frequency selectivity, each sub-carrier is relatively flat, and a narrow-band transmission is performed on each sub-carrier, and the signal bandwidth is smaller than the channel bandwidth, so the signal waveform can be greatly eliminated. Interference between. Since each sub-carrier is orthogon...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04J11/00
Inventor 戴博田刚郁光辉
Owner ZTE CORP
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