Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-02-16
1999-02-09
Bost, Dwayne D.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455453, H04Q 720
Patent
active
058706763
ABSTRACT:
Methods and apparatus for monitoring problematic transmission channels in a cellular telephone system are disclosed. In the preferred embodiment, the channel monitoring method or apparatus keeps track of a defined number of calls M. After channel selection, the channel monitoring process determines whether the channel assignment was successful. The number of calls M defines the window in which the process tracks channel failures. The disclosed monitoring process can be used in either an analog embodiment or a time division multiple access (TDMA) digital embodiment having multiple channels for each frequency, such as TDMA-3. After every frequency selection, whether call assignment is successful or unsuccessful, channel information is monitored. If the monitored channel information exceeds placement thresholds, the selected frequency is placed into an alarm subpool. Preferably, the channel monitoring process has at least one alarm subpool. If the selected channel has been previously placed into an alarm subpool during a window of calls M and the channel information satisfies rejection thresholds, the selected frequency is rejected. A rejected frequency is subsequently unavailable for future calls until the operator intervenes. If the selected frequency is already in an alarm subpool and there have been no call failures of the type which originally caused the selected frequency to be placed into an alarm subpool during the last M calls; the frequency is removed from the alarm subpool.
REFERENCES:
patent: 5203012 (1993-04-01), Patsiokas et al.
patent: 5280630 (1994-01-01), Wang
patent: 5287544 (1994-02-01), Menich et al.
patent: 5347056 (1994-09-01), Rautiola
patent: 5418839 (1995-05-01), Knuth
patent: 5478868 (1995-12-01), Duque-Anton et al.
patent: 5561847 (1996-10-01), Kataoka
patent: 5603082 (1997-02-01), Hamabe
patent: 5666654 (1997-09-01), Kanai
Durvasula Bhanu
Yaragudipati Srikanth
Bost Dwayne D.
Hughes Electronics Corporation
Legree Tracy M.
Sales Michael W.
Whelan John T.
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