Mitigation of sounding interference in high frequency cellular systems
AssigneeRockwell Collins, Inc.
InventorsJohn V. THOMMANA, Joseph SPLEAN, II
Life of this patent
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Abstract
A high frequency (HF) cellular system includes base stations and HF terminals that initiate calls in the HF cellular system. The base stations perform sounding operations of transmitting sounding transmissions from the base stations to the HF terminals. A controller within the HF cellular system manages the sounding operations by having the base stations sound at different time intervals at specified frequencies.
Claims20
A method for mitigating sounding interference in a high frequency (HF) cellular system, the method comprising:
- transmitting a first sounding transmission from a first base station on a first frequency in a first time interval as specified by a controller communicatively coupled to the first base station;
- and
- transmitting a second sounding transmission from a second base station on a second frequency in the first time interval as specified by the controller communicatively coupled to the second base station.
A method for mitigating sounding interference in a high frequency (HF) cellular system, the method comprising:
- transmitting a first sounding transmission on a channel from a first base station at a first frequency during a first time interval as instructed by a controller coupled to the first base station, wherein the controller includes a base station table for a plurality of base stations including the first base station and a second base station and a frequency table for a plurality of frequencies including the first frequency and a second frequency;
- transmitting a second sounding transmission on the channel from the second base station at the second frequency during a second time interval as instructed by the controller coupled to the second base station;
- transmitting a third sounding transmission on the channel from the first base station at the second frequency during a third time interval as instructed by the controller;
- and
- transmitting a fourth sounding transmission on the channel from the second base station at the first frequency during a fourth time interval as instructed by the controller.
A method for mitigating sounding interference in a high frequency (HF) cellular system, the method comprising:
- transmitting a first sounding transmission on a channel from a first base station at a first frequency during a first time interval as instructed by a controller coupled to the first base station, wherein the controller includes a base station table for a plurality of base stations including the first base station and a second base station and a frequency table for a plurality of frequencies including the first frequency and a second frequency;
- transmitting a second sounding transmission on the channel from the second base station at the second frequency during the first time interval as instructed by the controller coupled to the second base station;
- transmitting a third sounding transmission on the channel from the first base station at the second frequency during a second time interval as instructed by the controller;
- and
- transmitting a fourth sounding transmission on the channel from the second base station at the first frequency during the second time interval as instructed by the controller.
Dependencies are inferred from the claim text.