RxQual is used in
GSM
The Global System for Mobile Communications (GSM) is a family of standards to describe the protocols for second-generation (2G) digital cellular networks, as used by mobile devices such as mobile phones and Mobile broadband modem, mobile broadba ...
and is a part of the Network Measurement Reports (NMR).
This is an integer value which can be between 0 and 7 and reflects the quality of voice.
0 is the best quality, 7 is the worst.
Each RxQual value corresponds to an estimated number of bit errors in a number of bursts.
There are two types of RxQual values, FULL and SUB.
We use RxQual SUB when we have DTX DL activated because RxQual FULL values will not be reliable, because they will use
Bit error rate
In digital transmission, the number of bit errors is the number of received bits of a data stream over a communication channel that have been altered due to noise, interference, distortion or bit synchronization errors.
The bit error rate (BER) ...
(BER) measurements when nothing has been sent, what leads to a very high BER and a poor RxQual.
If DTX DL is deactivated, is better to use RxQual FULL values, they are more precise, because it uses all frames on the SACCH multiframe, whether they have been transmitted from the base station or not.
The official definition of RxQual is given in Chapter 8.2.4 of GSM TS 05.08 (ETSI TS 100 911), later superseded by 3GPP TS 45.008.
See also
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Cellular network
A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless network, wireless and the network is distributed over land areas called ''cells'', each served by at least one fixed-locatio ...
*
GSM
The Global System for Mobile Communications (GSM) is a family of standards to describe the protocols for second-generation (2G) digital cellular networks, as used by mobile devices such as mobile phones and Mobile broadband modem, mobile broadba ...
References
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Mobile technology
Radio resource management