| Presentation | 2003/7/25 Change in the Difference between the Received Levels of Sector Antenna Koshiro KITAO, Shinichi ICHITSUBO, Yoshio EBINE, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In mobile communication systems, when radio zones are constituted by sector areas, handover is controlled based on the difference between the received level of an existing sector and that of a neighboring sector. However, in the vicinity of a base station (BS) site, the difference in these levels changes rapidly, handover and soft-handover occur frequently, and a significant load is applied to the BS control. This report presents a model for arriving waves observed at a BS in order to clarify the characteristics of the change in the difference of the received levels of a sector antenna in an urban area. We modeled the angle profile expressed by the Laplacian function with a log normal distribution. By doing so, we can express well the characteristics of the average angle, the angle spread, and the difference in the received level. We focus on the effectiveness in estimating the difference in the received level using the maximum wave in the angle profile, and we propose a physical model for the propagation of the maximum wave. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile Radio / Sector Antenna / Handover / Angle Profile / Average Angle |
| Paper # | A・P2003-109 |
| Date of Issue |
| Conference Information | |
| Committee | AP |
|---|---|
| Conference Date | 2003/7/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Antennas and Propagation (A・P) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Change in the Difference between the Received Levels of Sector Antenna |
| Sub Title (in English) | |
| Keyword(1) | Mobile Radio |
| Keyword(2) | Sector Antenna |
| Keyword(3) | Handover |
| Keyword(4) | Angle Profile |
| Keyword(5) | Average Angle |
| 1st Author's Name | Koshiro KITAO |
| 1st Author's Affiliation | NTT DoCoMo, Inc.() |
| 2nd Author's Name | Shinichi ICHITSUBO |
| 2nd Author's Affiliation | NTT DoCoMo, Inc. |
| 3rd Author's Name | Yoshio EBINE |
| 3rd Author's Affiliation | NTT DoCoMo, Inc. |
| Date | 2003/7/25 |
| Paper # | A・P2003-109 |
| Volume (vol) | vol.103 |
| Number (no) | 232 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |