Modulation and coding scheme(MCS) dispatching method applicable to various user states and system
A modulation and coding method and a technology of user status, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as loss of system performance, communication quality not meeting requirements, not suitable for users, etc., to improve communication The effect of quality, easy hardware implementation, and good performance
Inactive Publication Date: 2012-11-14
ZTE CORP
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[0006] However, the above-mentioned MCS scheduling is not suitable for user mobility, especially high-speed mobility. Using the existing MCS scheduling when the user is moving at high speed will lose system performance, such as the communication quality cannot meet the requirements
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[0054] The basic idea of the present invention is to combine the actual performance of the system in the fixed-point simulation or test under the mobile state of the user to construct the MCS used by the user in different states and its scheduling threshold. In order to meet the performance requirements of various user states.
[0055] Specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0056] Such as figure 2 As shown, the scheduling method of this embodiment includes the following steps:
[0057] Step 210, obtain the relationship curves of BER and carrier to interference noise ratio (CINR: Carrier to Interference+Noise Ratio) when the user is in the mobile state and use each MCS through fixed-point simulation or testing, and filter out the low-level MCS in the performance interleaved MCS For high code rate MCS, formulate the second scheduling threshold table, the first scheduling thresh...
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The invention relates to an MCS dispatching method applicable to various user states and a system. The MCS dispatching method comprises the following steps that: firstly, various user states, user mobile state corresponding to each user state and / or business service quality, namely QoS requirements, and MCS dispatching configuration information corresponding to each user state are configured in the system, and the MCS dispatching configuration information comprises set QoS parameter values, MCS which corresponds to the set QoS parameter values and can be used in a dispatching manner, and a dispatching threshold; when carrying out MCS dispatching to a user, a base station acquires the current mobile state of the user and the QoS requirements of business, judges the current user state of the user, and combines the current channel quality parameters of the user and the MCS dispatching configuration information corresponding to the user state for dispatching. Correspondingly, the MCS dispatching system of the invention comprises a storage module, a channel quality acquisition module, an MCS dispatching module and a state judgement module. The invention can carry out MCS dispatching under the state of various user state and guarantee the dispatching effect.
Description
technical field [0001] The present invention relates to a modulation and coding style (MCS, modulation and coding style) scheduling technology, in particular to an MCS scheduling method and system adaptable to various user states. Background technique [0002] With the development of wireless communication technology, adaptive modulation and coding (AMC, adaptive modulation and coding) technology has emerged, which uses key technologies such as link adaptation, channel selective scheduling, hybrid automatic retransmission, etc., making wireless communication systems Both uplink and downlink throughput and spectrum efficiency have been greatly improved. [0003] AMC adjusts adaptively according to the conditions of the link, effectively reduces the user's data bit error rate, and effectively utilizes the characteristics of the network to improve throughput and spectrum efficiency. The principle of AMC technology is to change the mode of modulation and code rate according to ...
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IPC IPC(8): H04W28/24H04W28/18
Inventor 刘巧艳田丰赵路杨慧
Owner ZTE CORP