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Method for dynamically configuring uplink and downlink subframe proportion of TDD (time division duplex) base station based on business load

A technology of business load and dynamic configuration, applied in the field of communication, can solve problems such as not being able to reflect the business characteristics of TDD base stations well, and achieve the effects of improving network system performance, high efficiency, and strong applicability

Active Publication Date: 2013-04-03
北京万海云科技有限公司
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Problems solved by technology

[0013] To sum up, the existing methods cannot well reflect the service characteristics of uplink and downlink transmission of TDD base stations, and there is a large room for improvement

Method used

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  • Method for dynamically configuring uplink and downlink subframe proportion of TDD (time division duplex) base station based on business load
  • Method for dynamically configuring uplink and downlink subframe proportion of TDD (time division duplex) base station based on business load
  • Method for dynamically configuring uplink and downlink subframe proportion of TDD (time division duplex) base station based on business load

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Embodiment 2

[0050] The "re-matching" adjustment process in the method of Embodiment 2 is described as follows: when the uplink or downlink "service QoS characteristics" trigger the threshold value defined above, a certain "adjustment step" (marked as "Δ") is used to compare the benchmark configuration #i Make adjustments in the direction of increasing uplink subframes or increasing downlink subframes. A "unit step" is defined as adjusting a "configuration level" in the direction of increasing or decreasing the UL subframe. Take TD-LTE as an example, as shown in Table 2, assuming the baseline configuration# i Configure for TDD # 6 (the level of the number of DL subframes is 2) and the required adjustment step size Δ=1, then when the “rematching” process needs to further increase the number of DL subframes, TDD configuration #1 (DL Subframe number level is 3) as a new configuration# i . In addition, the "adjustment step size" can be selected according to how much the "service QoS char...

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Abstract

The invention discloses a dynamic configuring method for TDD (time division duplex) uplink and downlink subframes based on business feature information. The method can be applied to a next-generation TDD wireless communication system. Different 'business feature information' can be selected according to different optimization targets, different implementation complexity and the like to serve as a basis for dynamic configuration of the TDD uplink and downlink subframes, and optimal matching of current network business state can be realized by flexibly adjusting the proportion of the TDD uplink and downlink subframes, so that network system performance can be effectively improved.

Description

technical field [0001] The invention relates to the communication field, and proposes a method for dynamically configuring the ratio of uplink and downlink subframes of a TDD base station. Background technique [0002] In recent years, the new-generation wireless communication technology has developed rapidly. Compared with the third-generation wireless communication technology, it has many advantages such as simple network architecture, small signal delay, high communication quality, and fast transmission speed. From the classification of uplink and downlink business multiplexing methods, the communication system can be divided into TDD and FDD (Frequency Division Duplex) two systems. Compared with the FDD system, the TDD system has higher utilization efficiency of spectrum resources, and can use different radio frame structures with different uplink and downlink subframe ratios between base stations according to different uplink and downlink traffic volumes. However, due ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04W28/08
Inventor 张晨璐纪子超温文坤江明李小龙
Owner 北京万海云科技有限公司
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