Method for partitioning edge users in downlink
An edge user and downlink technology, which is applied in network planning, electrical components, wireless communication, etc., can solve the problems of fast fading changes, inaccurate CQI values, and failure to consider other adjacent cell interference factors, etc., to achieve improved Performance, Accuracy Improvement Effects
Inactive Publication Date: 2014-03-26
POTEVIO INFORMATION TECH CO LTD
View PDF4 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] Among them, method 1 only considers the power of the signal, but ignores the interference factors of neighboring cells; method 2 only considers the interference with the strongest neighboring cells, but does not consider the interference factors of other neighboring cells; although method 3 excludes the first two The shortcomings of this method, but the impact of fast fading changes during UE movement is relatively large, resulting in inaccurate measured CQI values
The above three methods do not take into account some special factors in the actual environment. For example, due to the influence of other factors such as shadows and indoors, the user may receive less interference although the signal strength is weaker. The interference coordination algorithm is used to reduce the interference. After that, the channel conditions will not be significantly improved, so these users should be excluded from the marginal users
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
[0021] The total power of the signal received by the UE is represented by the Received Signal Strength Indicator (RSSI, Received Signal Strength Indicator). The definition of RSSI is as follows:
[0022] RSSI=P signal_receiv +I+N,
[0023] Among them, P signal_receiv is the received useful signal power, including data signal power and reference signal power; N is thermal noise power, and I is interference power. Since the influence of N is small, when the useful signal power and interference power are small, the RSSI value must also be small. Therefore, through the screening of RSSI information, users with small useful signals and small interference can be excluded, and the edge user selection can be improved. Accuracy, thereby improving the performance of the interference coordination algorithm.
[0024] The basic idea of a method for dividing edge users in the downlink provided by this application is as follows: firstly determine the edge users initially according to a ...
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 discloses a method for partitioning edge users in a downlink. The method comprises the following steps: A, determining a candidate edge user set according to an edge user determining method in the prior art; and B, calculating the received signal strength indicator RSSI of user equipment UE, excluding UE of which the RSSI is smaller than a predetermined RSSI threshold in the candidate edge user set and determining the remaining UE in the candidate edge user set as the final edge users. By the adoption of the method, the accuracy of edge user selection can be improved, and the performance of the interference coordination algorithm can be improved.
Description
technical field [0001] The present application relates to the technical field of mobile communication, in particular to a method for dividing edge users in downlink. Background technique [0002] In the future, global communication services will have higher and higher requirements for data transmission rate. On the basis of ensuring the performance of cell edge users in LTE / LTE-A system, how to further improve the frequency utilization rate to improve the performance of the overall system has always been a research topic. hotspots. When the LTE / LTE-A system is networked at the same frequency, one cell can use the frequency band of the entire system, and there is inevitably inter-cell interference, especially at the edge of the cell, because the user is far away from the base station, the attenuation of signal energy is relatively large. The strength of the useful signal is small, and two adjacent cells use the same spectrum resources at the junction, and user performance is...
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 Applications(China)
IPC IPC(8): H04W16/10
Inventor 杨剑浩邱禹
Owner POTEVIO INFORMATION TECH CO LTD