Method of and system for interference measurement
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorStefan Zurbes
Life of this patent
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Abstract
An evaluation of the interference situation of a transmission system is performed. If valid payload data is received, a counter for valid receptions is incremented and a signal power at which the payload data was received is stored. If invalid payload data is received, a counter for invalid receptions is incremented. If no payload data has to be received, the signal power is measured in order to consider the signal power as interference power. The ratio of the signal power measured during a valid reception and as the interference power is calculated as a fictive signal-to-interference power ratio.
Claims20
A method of evaluating an interference situation of a transmission system, the method comprising:
- responsive to receipt of valid payload data, increasing a counter for valid receptions and storing a valid-payload-data signal power,
- responsive to receipt of invalid payload data, increasing a counter for invalid receptions;
- and
- responsive to receipt of no payload data:
- measuring signal power in order to consider the signal power as interference power;
- and
- calculating a ratio of the signal power measured during a valid reception and the interference power as a fictive signal-to-interference power ratio.
A transmission system comprising:
- means for increasing a counter for valid receptions and storing a valid-payload-data signal power responsive to receipt of valid payload data;
- means for increasing a counter for invalid receptions responsive to receipt of invalid payload data;
- and
- means for measuring signal power in order to consider the signal power as interference power responsive to receipt of no payload data;
- and
- means for calculating a ratio of the signal power measured during a valid reception and the interference power as a fictive signal-to-interference power ratio responsive to receipt of no payload data.
A method of evaluating an interference situation of a transmission system, the method comprising:
- responsive to receipt of valid payload data, increasing a counter for valid receptions and storing a valid-payload-data signal power;
- responsive to receipt of invalid payload data, increasing a counter for invalid receptions;
- and
- responsive to receipt of no payload data:
- measuring signal power in order to consider the signal power as interference power;
- calculating a ratio of the signal power measured during a valid reception and the interference power as a fictive signal-to-interference power ratio;
- determining whether a signal-to-interference ratio is sufficient;
- responsive to a determination that the signal-to-interference ratio is sufficient, increasing the counter for valid receptions;
- and
- responsive to a determination that the signal-to-interference ratio is not sufficient, increasing the counter for invalid receptions.
A transmission system comprising:
- means for increasing a counter for valid receptions and storing a valid-payload-data signal power responsive to receipt of valid payload data;
- means for increasing a counter for invalid receptions responsive to receipt of invalid payload data,
- means for measuring signal power in order to consider the signal power as interference power responsive to receipt of no payload data;
- means for calculating a ratio of the signal power measured during a valid reception and the interference power as a fictive signal-to-interference power ratio responsive to receipt of no payload data;
- means for determining whether a signal-to-interference ratio is sufficient responsive to receipt of no payload data;
- means for increasing the counter for valid receptions responsive to a determination that the signal-to-interference ratio is sufficient;
- and
- means for increasing the counter for invalid receptions responsive to a determination that the signal-to-interference ratio is not sufficient.
Dependencies are inferred from the claim text.