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United States Patent | 5,396,645 |
Huff | March 7, 1995 |
A system and method are provided for determining whether to assign a macrocell communication frequency or a microcell communication frequency to a particular mobile communication terminal for a particular communication interval of a communication session. The speed of the mobile communication terminal is estimated immediately prior to the communication interval based upon the number of changes in the strength of signals received from the mobile communication terminal during a predetermined time interval. If the estimated speed is within a first predetermined range, one of the macrocell communication frequencies is assigned to the mobile communication terminal. If the estimated speed is within a second predetermined range, one of the microcell communication frequencies is assigned to the mobile communication terminal.
Inventors: | Huff; Duane L. (Annandale, NJ) |
Assignee: |
Comcast Pcs Communications, Inc.
(Philadelphia,
PA)
|
Appl. No.: | 07/865,602 |
Filed: | April 9, 1992 |
Current U.S. Class: | 455/441 ; 455/134; 455/438; 455/444; 455/450 |
Current International Class: | H04B 7/08 (20060101); H04Q 7/38 (20060101); H04B 007/08 (); H04Q 007/00 () |
Field of Search: | 455/33.1,33.3,33.4,34.1,132,133,134,135,277.1-277.2,278.1 |
4403343 | September 1983 | Hamada |
4450585 | May 1984 | Bell |
4696058 | September 1987 | Tachita et al. |
4704734 | November 1987 | Menich et al. |
4710945 | December 1987 | Bocci et al. |
4742563 | May 1988 | Fukumura |
4742568 | May 1988 | Furuya |
4756023 | July 1988 | Kojima |
4765753 | August 1988 | Schmidt |
4876743 | October 1989 | Lindenmeier et al. |
5140695 | August 1992 | Yasuda et al. |
196772 | Aug., 1991 | JP | |||