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Uplink time frequency resource allocation method

An allocation method and technology for time-frequency resources, which are applied in the field of uplink time-frequency resource allocation, can solve the problems of increasing system overhead and reducing system resource utilization, and achieve the effects of improving system resource utilization and improving peak-to-average ratio characteristics.

Inactive Publication Date: 2006-07-19
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the control information transmitted uplink also needs to increase the system overhead accordingly, which reduces the utilization rate of system resources.

Method used

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  • Uplink time frequency resource allocation method
  • Uplink time frequency resource allocation method
  • Uplink time frequency resource allocation method

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Embodiment Construction

[0036] The method for allocating uplink time-frequency resources of the present invention enables the time-division pilots required for data demodulation (channel estimation) to occupy as few frequency resources as possible, and can effectively use the remaining frequency resources in the pilot time period to transmit other users' information. information or control information of this user. Such as Figure 4 As shown, the method includes the following steps:

[0037] A. Assign user pilot symbols and their data symbols to occupy the time resources of the same frequency band;

[0038] B. Setting the frequency resource occupied by the user pilot symbol within its time resource is less than the frequency resource occupied by the corresponding data symbol within its time resource; and

[0039] C. Allocate the remaining frequency resources in the time resources of the pilot symbols except the frequency resources occupied by the pilot symbols to transmit other user's information o...

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Abstract

The invention relates to a method for distributing the ascending time frequency resource, which comprises: for the user pilot frequency mark, distributing the time resource that possessing same resource of its data mark; setting the frequency resource that the frequency resource that possessed by the user pilot mark at its time resource is less than relative data mark at its time resource; and distributing the left frequency resource without the frequency resource possessed by the pilot mark to the information to be transmitted to other users or the control information to said user. The invention can confirm the estimation property and data transmission property of user frequency channel, and effectively use the ascending resource to multiple utilize the multiple user information, to improve the system resource utilization and confirm better peak-average ratio of said pilot frequency and the data.

Description

technical field [0001] The present invention relates to wireless communication technology, more specifically, to a method for allocating uplink time-frequency resources. Background technique [0002] Since the 1990s, multi-carrier technology has become a hot technology in broadband wireless communication. Its basic idea is to divide a broadband carrier into multiple sub-carriers, and transmit data simultaneously on the multiple sub-carriers. In most system applications, the width of the subcarrier is smaller than the coherent bandwidth of the channel, so that on the frequency selective channel, the fading on each subcarrier is flat fading, thereby reducing the crosstalk between symbols, and does not require complicated channel equalization. Suitable for high-speed data transmission. [0003] Multi-carrier technology usually adopts frequency domain channel estimation technology and frequency domain equalization technology. Some single-carrier systems can also be equivalent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J4/00H04L27/26
Inventor 黄睿马莎曲秉玉
Owner HUAWEI TECH CO LTD
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