The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Mobility Robustness Optimization (MRO), i.e. self-optimization of handover (HO) parameters, is a key driver for expanding Heterogeneous Networks (HetNet) while suppressing the need for drive tests. 3GPP Long Term Evolution (LTE) has introduced a scheme for MRO that enables the eNB, i.e. a base station, to detect HO failures while coordinating with other eNBs via the X2-interface (X2-Intf). However,...
In LTE, uplink (UL) transmit power control is important to mitigate the UL aggregate interference from all femtocells to the macrocell, which is increased as the number of femtocells is increased. We propose an UL power control method for LTE femtocells adaptively setting target received power by using the aggregation of the resource usage of femtocells. With this method, when the aggregate resource...
Femtocell base stations are required to set proper downlink transmit power under various building environment. Conventional power setting techniques use a fixed power offset over received power level of the strongest macrocell base station to expand indoor femtocell coverage along with mitigating the interference leakage to the outdoors. However, the power offset has not been adequately optimized...
Self-optimization of the neighbor cell list (NCL) is expected to improve handover performance and reduce the need for site surveys. 3GPP Long Term Evolution (LTE) has introduced automatic neighbor relation (ANR), which enables a base station to manage neighbor cells on the basis of measurements made by mobiles. Because the radio coverage changes during network operations, it is essential to immediately...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.