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Time frequency resource allocation method, device and base station and radio communication device applying same

A wireless communication system, technology of time-frequency resources, applied in the field of devices, base stations and wireless communication systems, time-frequency resource allocation methods, capable of solving problems such as limiting user diversity performance, and achieving the effect of improving diversity performance

Inactive Publication Date: 2007-10-17
HUAWEI TECH CO LTD
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Problems solved by technology

Although the combination of centralized transmission and frequency soft multiplexing can be solved by comprehensively considering the transmission power and channel conditions, for decentralized transmission, a single user can only occupy the main frequency subband or sub-frequency subband of the scattered transmission subbands, which is extremely difficult. Greatly limits the user's diversity performance

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  • Time frequency resource allocation method, device and base station and radio communication device applying same
  • Time frequency resource allocation method, device and base station and radio communication device applying same
  • Time frequency resource allocation method, device and base station and radio communication device applying same

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Embodiment Construction

[0054] In order to make the objectives, technical solutions and advantages of the present invention more clearly expressed, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] The main idea of ​​the present invention is: when allocating time-frequency resources to users, the main and sub-frequency division modes of frequency soft multiplexing are considered at the same time, so that the allocation of time-frequency resources and the main and sub-frequency division of frequency soft multiplexing are combined organically, thereby Improve system performance. That is, first divide the working bandwidth into more than one subband, each cell selects at least one subband as the primary frequency subband of the cell, and the remaining part is used as the secondary frequency subband of the cell; then, divide the subband of each cell The primary frequency subband is allocated to the scattered transm...

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Abstract

The invention discloses the time resource allocation frequently method in the wireless communication system, which includes: A. the work bandwidth is divided into subbands greater than one, and every district selects at least one subband as the dominant frequency subband of this district, and the remainder is used as vice frequency subband of this district; B. distribute the dominant frequency subband of every district to the dispersion transmission of this district or concentrated transmission, distribute the vice frequent subband of every district to the dispersion transmission of this district or concentrated transmission. The invention also discloses the time resource allocation device of wireless communication system and basic station and wireless communication system using same. After using the invention, it can concentrate the dispersion transmission subband on the dominant frequency subband or vice subband as far as possible or, consequently when adopting soft frequency reuse, dispersion transmission user can take the frequency resource as many as possible, so, it can improve the diversity performance evidently.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, and more specifically, to a time-frequency resource allocation method, device, and base station and wireless communication system using the same. Background technique [0002] The second-generation mobile communication uses Time Division Multiple Access (TDMA) and Narrowband Code Division Multiple Access (CDMA) as the main access technologies, such as the Global System for Mobile Communications (GSM) and the CDMA IS-95 mobile communication system. The third-generation mobile communication uses broadband CDMA as the main access technology, such as Universal Mobile Telecommunication System (UMTS) and WCDMA mobile communication system. In CDMA technology, a user's data symbols will occupy all the carrier frequency width, and different users or user data are distinguished by spreading codes. Because the multipath channel destroys the orthogonality between spreading codes, making th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26
Inventor 曲秉玉范霄安
Owner HUAWEI TECH CO LTD
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