3GPP 24.501 v20.0.0 — the document's own text
9.11.3.73 NB-N1 mode DRX parameters
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
The purpose of the NB-N1 mode DRX parameters information element is to indicate that the UE wants to use DRX in NB-N1 mode and for the network to indicate the DRX cycle value to be used at paging in NB-N1 mode.
The NB-N1 mode DRX parameters is a type 4 information element with a length of 3 octets.
The NB-N1 mode DRX parameters information element is coded as shown in figure 9.11.3.73.1 and table 9.11.3.73.1.
The value part of a DRX parameter information element is coded as shown in table 9.11.3.73.1.
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
|---|---|---|---|---|---|---|---|---|
| NB-N1 mode DRX parameters IEI | octet 1 | |||||||
| Length of NB-N1 mode DRX parameters contents | octet 2 | |||||||
| 0 | 0 | 0 | 0 | NB-N1 mode DRX value | ||||
| Spare | octet 3 |
Figure 9.11.3.73.1: NB-N1 mode DRX parameters information element
Table 9.11.3.73.1: NB-N1 mode DRX parameters information element
| NB-N1 mode DRX value (octet 3, bits 1 to 4)This field represents the DRX cycle parameter 'T', for NB-N1 mode, as defined in 3GPP TS 36.304 [25C]. | ||||
|---|---|---|---|---|
| Bits | ||||
| 4 | 3 | 2 | 1 | |
| 0 | 0 | 0 | 0 | DRX value not specified |
| 0 | 0 | 0 | 1 | DRX cycle parameter T = 32 |
| 0 | 0 | 1 | 0 | DRX cycle parameter T = 64 |
| 0 | 0 | 1 | 1 | DRX cycle parameter T = 128 |
| 0 | 1 | 0 | 0 | DRX cycle parameter T = 256 |
| 0 | 1 | 0 | 1 | DRX cycle parameter T = 512 |
| 0 | 1 | 1 | 1 | DRX cycle parameter T = 1024 |
| All other values shall be interpreted as "DRX value not specified" by this version of the protocol.Bits 5 to 8 of octet 3 are spare and shall be coded as zero. | ||||