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Method for dynamically configurating TDD (Time Division Duplex) base station uplink and downlink subframe scale

A dynamic configuration and base station technology, applied in energy-saving ICT, advanced technology, electrical components, etc., can solve problems such as system performance degradation, achieve the effects of enhancing user experience, improving usage efficiency, and avoiding inter-cell interference

Inactive Publication Date: 2011-09-21
北京万海云科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0012] Due to the different application environments of HeNB and macro cells, one or more of the above interferences are particularly strong and unavoidable in some cases
For example, when figure 2 The two HeNBs belong to different home users, and the distance between them is very small (for example, they are placed on both sides of the wall), or the distance between two HUEs is very small, which will cause serious degradation of system performance.

Method used

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  • Method for dynamically configurating TDD (Time Division Duplex) base station uplink and downlink subframe scale
  • Method for dynamically configurating TDD (Time Division Duplex) base station uplink and downlink subframe scale
  • Method for dynamically configurating TDD (Time Division Duplex) base station uplink and downlink subframe scale

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Embodiment Construction

[0063] Aiming at the limitation that the existing TDD communication base station system cannot flexibly configure the ratio of uplink and downlink subframes, the present invention designs a new method for dynamically configuring the ratio of uplink and downlink subframes of TDD micro base stations based on measurement feedback (the home base station HeNB is used as an example below) Be explained).

[0064] Dynamic adjustment process of uplink and downlink subframes:

[0065] In the present invention, the base station of the serving cell adaptively selects the appropriate uplink and downlink subframe configuration by analyzing factors such as the wireless air interface environment, service characteristics, and cell load. like image 3 As shown, the specific process is as follows:

[0066] specific process:

[0067] 1. Operators or equipment manufacturers deploy base stations according to network planning requirements, base station cell size, base station transmit power and o...

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Abstract

The invention provides a method for dynamically configurating TDD (Time Division Duplex) base station uplink and downlink subframe scale. Through measurement and feedback of TDD base station interference environment and service type, the method can realize different uplink and downlink subframe scale configurations in different cells so as to avoid the strong interference and simultaneously realize flexible and dynamic self-configuration of TDD uplink and downlink subframe scale, thus improving the service efficiency of wireless communication resource, enhancing TDD cell service optimization and improving the energy efficiency of the access network. The invention can be applied to the cell environment of the next generation wireless communication system in TTD mode, including Femtocell in homogeneous or heterogeneous network and indoor relay and the like.

Description

1. Technical field [0001] The invention is oriented to the field of mobile communication, and proposes a method for dynamically configuring the ratio of uplink and downlink subframes of a TDD base station. 2. Background technology [0002] In recent years, the new generation of wireless communication technology has developed rapidly. Compared with the third generation of wireless communication technology, the new generation of mobile communication technology has many advantages such as simple network architecture, small signal delay, high communication quality and fast speed. From the classification of uplink and downlink service multiplexing methods, it can be divided into TDD (time division duplex) system and FDD (frequency division duplex) system. TDD and FDD systems have their own advantages. Compared with the FDD system, the TDD system has higher utilization efficiency of system resources, and can use radio frame structures with different uplink and downlink subframe r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/08H04W72/54
CPCY02B60/50Y02D30/70
Inventor 张晨璐纪子超江明刘为温文坤
Owner 北京万海云科技有限公司
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