• State Not Answered
  • Replies 11 replies
  • Subscribers 69 subscribers
  • Views 511 views
  • Users 0 members are here
Attachments (0)
Nordic Case Info
  • Case ID: 331614
Options

there seems to be an overlap problem for rsrp and for rsrq in documentation and code comments

_rm
/**
* RSRP.
*
* * -17: RSRP < -156 dBm
* * -16: -156 ≤ RSRP < -155 dBm
* * ...
* * -3: -143 ≤ RSRP < -142 dBm
* * -2: -142 ≤ RSRP < -141 dBm
* * -1: -141 ≤ RSRP < -140 dBm
* * 0: RSRP < -140 dBm
* * 1: -140 ≤ RSRP < -139 dBm
* * 2: -139 ≤ RSRP < -138 dBm
* * ...
* * 95: -46 ≤ RSRP < -45 dBm
* * 96: -45 ≤ RSRP < -44 dBm
* * 97: -44 ≤ RSRP dBm
* * @ref LTE_LC_CELL_RSRP_INVALID : not known or not detectable
*/
int16_t rsrp;

/**
* RSRQ.
*
* * -30: RSRQ < -34 dB
* * -29: -34 ≤ RSRQ < -33.5 dB
* * ...
* * -2: -20.5 ≤ RSRQ < -20 dB
* * -1: -20 ≤ RSRQ < -19.5 dB
* * 0: RSRQ < -19.5 dB
* * 1: -19.5 ≤ RSRQ < -19 dB
* * 2: -19 ≤ RSRQ < -18.5 dB
* * ...
* * 32: -4 ≤ RSRQ < -3.5 dB
* * 33: -3.5 ≤ RSRQ < -3 dB
* * 34: -3 ≤ RSRQ dB
* * 35: -3 ≤ RSRQ < -2.5 dB
* * 36: -2.5 ≤ RSRQ < -2 dB
* * ...
* * 45: 2 ≤ RSRQ < 2.5 dB
* * 46: 2.5 ≤ RSRQ dB

there seems to be an overlap problem for rsrp and for rsrq
* * -1: -141 ≤ RSRP < -140 dBm
* * 0: RSRP < -140 dBm
* * -1: -20 ≤ RSRQ < -19.5 dB
* * 0: RSRQ < -19.5 dB
what is the actual behaviour?
Parents
  • 0
    The assignment of '0' to RSRP when it's less than -140 dBm and to RSRQ when it's less than -19.5 dB is a design choice made to handle extreme cases where the signal quality is poor. This approach simplifies the handling of extreme cases by grouping them into a single category ('0' in this case), probably making it easier to identify and handle poor signal quality situations in the code.
    For RSRP, any value less than -140 dBm is considered bad, indicating a weak signal. Similarly, for RSRQ, any value less than -19.5 dB is considered bad, indicating poor signal quality. By assigning '0' to these ranges, it probably allows for a simplified way to quickly identify these poor signal conditions.
Reply
  • 0
    The assignment of '0' to RSRP when it's less than -140 dBm and to RSRQ when it's less than -19.5 dB is a design choice made to handle extreme cases where the signal quality is poor. This approach simplifies the handling of extreme cases by grouping them into a single category ('0' in this case), probably making it easier to identify and handle poor signal quality situations in the code.
    For RSRP, any value less than -140 dBm is considered bad, indicating a weak signal. Similarly, for RSRQ, any value less than -19.5 dB is considered bad, indicating poor signal quality. By assigning '0' to these ranges, it probably allows for a simplified way to quickly identify these poor signal conditions.
Children
Related