3GPP 24.501 v20.0.0 — the document's own text
9.11.3.77 Paging restriction
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 Paging restriction information element is to request the network to restrict paging.
The Paging restriction information element is coded as shown in figure 9.11.3.77.1, figure 9.11.3.77.2 and table 9.11.3.77.1.
The Paging restriction is a type 4 information element with a minimum length of 3 octets and a maximum length of 35 octets.
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
|---|---|---|---|---|---|---|---|---|
| Paging restriction IEI | octet 1 | |||||||
| Length of Paging restriction contents | octet 2 | |||||||
| 0Spare | 0Spare | 0Spare | 0Spare | Paging restriction type | octet 3 |
Figure 9.11.3.77.1: Paging restriction information element for Paging restriction type = "All paging is restricted" and for Paging restriction type = "All paging is restricted except voice"
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
|---|---|---|---|---|---|---|---|---|
| Paging restriction IEI | octet 1 | |||||||
| Length of Paging restriction contents | octet 2 | |||||||
| 0Spare | 0Spare | 0Spare | 0Spare | Paging restriction type | octet 3 | |||
| PSI(7) | PSI(6) | PSI(5) | PSI(4) | PSI(3) | PSI(2) | PSI(1) | PSI(0) | octet 4 |
| PSI(15) | PSI(14) | PSI(13) | PSI(12) | PSI(11) | PSI(10) | PSI(9) | PSI(8) | octet 5 |
| 0 0 0 0 0 0 0 0spare | octet 6*-35* |
Figure 9.11.3.77.2: Paging restriction information element for Paging restriction type = "All paging is restricted except for specified PDU session(s)" and for Paging restriction type = "All paging is restricted except for voice service and specified PDU session(s)"
Table 9.11.3.77.1: Paging restriction information element
| Paging restriction type (bits 4 to 1 of octet 3) | ||||
|---|---|---|---|---|
| Bits | ||||
| 4 | 3 | 2 | 1 | |
| 0 | 0 | 0 | 0 | reserved |
| 0 | 0 | 0 | 1 | All paging is restricted |
| 0 | 0 | 1 | 0 | All paging is restricted except for voice service |
| 0 | 0 | 1 | 1 | All paging is restricted except for specified PDU session(s) |
| 0 | 1 | 0 | 0 | All paging is restricted except for voice service and specified PDU session(s) |
| All other values are reserved. | ||||
| Bits 5 to 8 of octet 3 are spare and shall be coded as zero.PSI(x) (bits 8 to 1 of octet 4 and octet 5):This field indicates the PDU session identity of the PDU session for which paging is restricted.PSI(0): (bit 1 of octet 4)Spare and shall be coded as zero.PSI(1) – PSI(15):0 indicates that paging is restricted for the PDU session associated with the PDU session identity.1 indicates that paging is not restricted for the PDU session associated with the PDU session identity. | ||||
| All bits in octet 6 to 35 are spare and shall be coded as zero, if the respective octet is included in the information element. |