Signal-to-interference and noise ratio measurement method and terminal
A measurement method and SINR technology, applied in wireless communication, electrical components, etc., can solve the problems of increased measurement method error and affecting LTE system performance, etc.
Inactive Publication Date: 2014-11-05
ZTE CORP
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in the actual LTE system, the same-frequency networking is usually adopted. Since the mapping position of the downlink cell-specific reference signal of the adjacent cell will change with the ID number of the adjacent cell, the pilot mapping position of the adjacent cell will be different from that of the current cell. If they are not consistent, the SINR obtained by measuring the reference signal of the downlink cell in this cell is different from the SINR of the actual downlink data part when the adjacent cell is empty, which will lead to an increase in the error of the measurement method, and then affect the performance of the entire LTE system. performance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0058] The present invention provides a UE-side downlink SINR measuring method and terminal applied in an LTE wireless communication system. Select different SINR measurement parameters to obtain the actual SINR algorithm scheme, so that the LTE wireless communication system can adaptively select the measurement method according to the actual network situation, and realize accurate measurement of downlink SINR through this low-complexity algorithm .
[0059] The technical solutions of the present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.
[0060] figure 1 is a schematic diagram of a terminal in an embodiment of the present invention, such as figure 1 As shown, the terminal in this embodiment is applied in an LTE wireless communication system, and includes: a data processing module, a data acquisition module, and a signal-to-interference-noise ratio calculation module.
[0061] Among them, the data process...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a signal-to-interference and noise ratio measurement method and a terminal. The method is applied to the terminal in a long term evolution (LTE) wireless communication system, and comprises the following steps of: judging the conditions of interference of a neighbor cell in a local cell according to noise interference power at the cell reference signal position of the local cell, and judging the load conditions of the local cell according to the residual power, except neighbor cell interference power, of the terminal at the cell reference signal position of the neighbor cell by using the terminal; acquiring the received data and number of data resource elements interfered and not interfered by the neighbor cell according to the conditions of interference of the neighbor cell in the local cell and the load conditions of the local cell respectively; computing average interference noise energy on the data resource elements of the local cell; and computing a signal-to-interference and noise ratio according to the ratio of the received data energy of a cell reference signal of the local cell to the average interference noise energy on the data resource elements of the local cell. In the method and the terminal, signal-to-interference and noise ratio (SINR) estimation is performed by utilizing actual downlink service channel data to greatly improve the SINR measurement accuracy of a user equipment (UE) side.
Description
technical field [0001] The present invention relates to the field of wireless communication, in particular to a method for measuring signal-to-interference and noise ratio (SINR) at a terminal side (UE), in particular to a method for measuring downlink SINR at a terminal side in a long-term evolution (LTE) system and LTE system terminal. Background technique [0002] With the continuous development of the third generation (3G) mobile communication system, LTE was proposed in 3GPP. Due to the advantages of higher user data rate, improved system capacity and coverage, and reasonable and flexible spectrum resource allocation, LTE It has developed rapidly, and many operators are currently planning or deploying LTE systems. In the downlink of the LTE system, multi-antenna technologies such as linear spatial precoding (Precoding) and transmit diversity are generally used to increase system capacity. Specifically, the multi-antenna configuration of the base station is used to sim...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W88/02
Inventor 李斌焦飞
Owner ZTE CORP