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Control method of soft frequency multiplexing function

A technology of soft frequency reuse and control method, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as reducing system performance and user experience, achieve large gains, and avoid negative effects.

Inactive Publication Date: 2010-12-29
TD TECH COMM TECH LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The positive gain of the soft frequency reuse function to the network is more obvious when the network has a certain load; when the network load will be relatively low, for example, in the initial stage of China Mobile TD-SCDMA Enabling the UE will cause frequent handovers in the cell, which will degrade system performance and user experience

Method used

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  • Control method of soft frequency multiplexing function
  • Control method of soft frequency multiplexing function

Examples

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Embodiment Construction

[0018] The main idea of ​​the present invention is to realize the judgment of TD-SCDMA system load based on the VRU, and close the soft frequency multiplexing function when it is judged that both the uplink and downlink loads of the system are small. In this way, the negative impact of the soft frequency reuse function on the system can be avoided.

[0019] In order to make the purpose, 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 and specific embodiments.

[0020] figure 1 It is a flowchart of Embodiment 1 of the present invention, such as figure 1 As shown, this embodiment one mainly includes the following steps:

[0021] Step 101: Start a cell load evaluation timer, and set a cell uplink load counter and a downlink load counter to zero.

[0022] In practical applications, the timeout threshold of the cell load evaluation timer can be set ac...

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Abstract

The invention discloses a control method of soft frequency multiplexing function, comprising the steps of: a, starting up a cell load evaluation timer and zeroing a cell uplink load counter and a cell downlink load counter; b, starting up a cell load monitoring timer, which, upon overtime, determines a current uplink load according to an available uplink VRU number on a preset channel and determines a current downlink load according to an available downlink VRU number on the preset channel; judging whether the uplink load is larger than an uplink load threshold, if so, implementing one plus of the uplink load counter, and if not, implementing one minus of the uplink load counter; judging whether the downlink is larger than a downlink load threshold, if so, implementing one plus of the downlink load counter, and if not, implementing one minus of the downlink load counter; d, judging whether the cell load evaluation timer is overtime, if so, performing the step e, and if not, returning to the step b; and e, judging whether the uplink load counter and the downlink load counter are larger than zero, if so, opening the soft frequency multiplexing function, and if not, closing the soft frequency multiplexing function; and returning to the step a.

Description

technical field [0001] The invention relates to the soft frequency multiplexing technology in the TD-SCDMA system, in particular to a control method of the soft frequency multiplexing function. Background technique [0002] Co-channel interference in the TD-SCDMA system is an important factor that affects the key performance indicators (KPI) of the system. In order to solve the problem of co-channel interference in the system service channel of N-frequency TD-SCDMA, a networking scheme of soft frequency reuse has been proposed in the industry. . Soft frequency reuse is an optimized radio resource management method. In this method, the central area of ​​the cell uses a half-coverage carrier frequency, and the edge area of ​​the cell uses a full-coverage carrier frequency. When the user equipment (UE) moves from the edge area of ​​the serving cell to the central area, the UE can be switched to the half-coverage carrier frequency. When the UE moves from the central area of ​​...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W72/04
Inventor 王亮
Owner TD TECH COMM TECH LTD
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