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Up reasource distributing method and radio communication system

A resource allocation and resource technology, applied in wireless communication, code division multiplexing system, frequency division multiplexing system components, etc., can solve the problems of different channel fading, different wireless channel paths, deep fading, etc.

Active Publication Date: 2007-07-25
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

In a multi-user system, the wireless channel path experienced by each user is different, so the fading of each channel is also different, so that the current user has better transmission performance in some transmission frequency bands, but in some frequency bands possible deep fading

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  • Up reasource distributing method and radio communication system
  • Up reasource distributing method and radio communication system
  • Up reasource distributing method and radio communication system

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] The main idea of ​​the present invention is that the system allocates pilot resources extended to a frequency band wider than the data transmission bandwidth for each user scheduled to send data in the currently scheduled transmission time unit according to the channel quality conditions of the scheduled users; and A special transmission time unit is set, and in this time transmission unit, measurement pilot resources are allocated to unscheduled users.

[0045] According to the channel quality conditions of the scheduled users, when allocating pilot resources extended to a wider frequency band than the data transmission bandwidth in the currently scheduled transmission time unit for each user scheduled to send data, the pilot resource can be used to The me...

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Abstract

The method includes steps: based on conditions of channel quality of users to be dispatched, the system assigns resources of pilot frequency (RPF), which is extended wider frequency band than bandwidth of data transmission, from the current dispatched unit of transmission time to each dispatched user of sending data; then, setting up special unit of transmission time, the system assigns resources of measuring pilot frequency (MPF) for not dispatched users. The invention also discloses a wireless communication system. The scheme makes users not dispatched in normal dispatch have more chance to send MPF so as to assign resources of MPF for more users, who can take part in up going dispatch. In addition, after assigning RPF from unit of transmission time for users going to transmit data, the invention no longer assigns resources of MPF for these users in same unit of transmission time so as to guarantee characteristic of low peak uniform ratio of single carrier wave.

Description

technical field [0001] The present invention relates to the technical field of wireless communication information transmission, in particular to an uplink resource allocation method and a wireless communication system. Background technique [0002] The traditional single-carrier technology has the characteristics of low peak-to-average ratio (PAPR) of the transmitted waveform, so that the amplifier device of the terminal equipment can work in a small linear range, thereby saving power consumption and reducing the cost of the terminal, but its multiplexing The method is not flexible enough. Orthogonal Frequency Division Multiple Access (OFDM) technology has the characteristics of flexible multiplexing, and can resist multipath interference, and is widely used in many communication systems, but one of its unavoidable problems is that its signals have high PAPR, which limits the application of OFDM technology in the uplink of wireless communication systems. [0003] At presen...

Claims

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Application Information

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IPC IPC(8): H04J1/10H04J13/00H04W72/04
Inventor 马莎何玉娟刘德平
Owner HUAWEI TECH CO LTD
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