RxLev represents the received signal level measured in dBm units. The range from -110 dBm to -48 dBm is mapped to codes from 0 to 63. The higher measured level, the higher code number. Values less than -110 dBm correspond to code 0 and values grater than -48 dBm correspond to code 63. These codes are periodically reported to serving cell.
| Code | RxLev range in dBm | Code | RxLev range in dBm | Code | RxLev range in dBm |
|---|---|---|---|---|---|
| 0 | <-110 | 22 | -89 to -88 | 44 | -67 to -66 |
| 1 | -110 to -109 | 23 | -88 to -87 | 45 | -66 to -65 |
| 2 | -109 to -108 | 24 | -87 to -86 | 46 | -65 to -64 |
| 3 | -108 to -107 | 25 | -86 to -85 | 47 | -64 to -63 |
| 4 | -107 to -106 | 26 | -85 to -84 | 48 | -63 to -62 |
| 5 | -106 to -105 | 27 | -84 to -83 | 49 | -62 to -61 |
| 6 | -105 to -104 | 28 | -83 to -82 | 50 | -61 to -60 |
| 7 | -104 to -103 | 29 | -82 to -81 | 51 | -60 to -59 |
| 8 | -103 to -102 | 30 | -81 to -80 | 52 | -59 to -58 |
| 9 | -102 to -101 | 31 | -80 to -79 | 53 | -58 to -57 |
| 10 | -101 to -100 | 32 | -79 to -78 | 54 | -57 to -56 |
| 11 | -100 to -99 | 33 | -78 to -77 | 55 | -56 to -55 |
| 12 | -99 to -98 | 34 | -77 to -76 | 56 | -55 to -54 |
| 13 | -98 to -97 | 35 | -76 to -75 | 57 | -54 to -53 |
| 14 | -97 to -96 | 36 | -75 to -74 | 58 | -53 to -52 |
| 15 | -96 to -95 | 37 | -74 to -73 | 59 | -52 to -51 |
| 16 | -95 to -94 | 38 | -73 to -72 | 60 | -51 to -50 |
| 17 | -94 to -93 | 39 | -72 to -71 | 61 | -50 to -49 |
| 18 | -93 to -92 | 40 | -71 to -70 | 62 | -49 to -48 |
| 19 | -92 to -91 | 41 | -70 to -69 | 63 | >-48 |
| 20 | -91 to -90 | 42 | -69 to -68 | ||
| 21 | -90 to -89 | 43 | -68 to -67 |
Source: ETSI