This clause describes the format of the parameters used for Radio Capability Signalling Optimisation (RACS). For further information on the use of the parameters see TS 23.401 and TS 23.501.

The UE radio capability ID is an identifier used to represent a set of UE radio capabilities, defined in TS 23.501 and in TS 23.401, composed as shown in Figure 29.2-1.

The UE radio capability ID is composed of the following elements (each element shall consist of hexadecimal digits only):

1. Type Field (TF): identifies the type of UE radio capability ID. The following values are defined:
   • 0: manufacturer-assigned UE radio capability ID;
   • 1: network-assigned UE radio capability ID; and
   • 2 to F: spare values for future use.
2. The Vendor ID is an identifier of UE manufacturer. This is defined by a value of Private Enterprise Number issued by Internet Assigned Numbers Authority (IANA) in its capacity as the private enterprise number administrator, as maintained at https://www.iana.org/assignments/enterprise-numbers/enterprise-numbers. Its length is 8 hexadecimal digits. This field is present only if the Type Field is set to 0;
3. The Version ID is the current Version ID configured in the UCMF. This field is present only if the Type Field is set to 1. Its length is 2 hexadecimal digits.
4. Radio Configuration Identifier (RCI): identifies the UE radio configuration. Its length is 11 hexadecimal digits.

This clause describes the format of the parameters needed to access the Multicast and Broadcast Services in 5GS. For further information on the use of the parameters see TS 23.247.

Temporary Mobile Group Identity (TMGI) is used within MBS to uniquely identify a broadcast MBS session or a multicast MBS session. TMGI is composed as shown in Figure 30.2.1.

The TMGI is composed of three parts:

1. MBS Service ID consisting of three octets. MBS Service ID consists of a 6-digit fixed-length hexadecimal number between 000000 and FFFFFF. MBS Service ID uniquely identifies an MBS service within a PLMN.
2. Mobile Country Code (MCC) consisting of three digits. The MCC identifies uniquely the country of domicile of the MB-SMF, except for the MCC value of 901, which does not identify any country and is assigned globally by ITU;
3. Mobile Network Code (MNC) consisting of two or three digits (depending on the assignment to the PLMN by its national numbering plan administrator). The MNC identifies the PLMN which the MB-SMF belongs to, except for the MNC value of 56 when the MCC value is 901, which does not identify any PLMN. For more information on the use of the TMGI, see TS 23.247.

In a SNPN (Stand-alone Non-Public Network), TMGI is used together with NID (Network Identifier) to identify an MBS Session.

The concept of Area Session ID is defined in TS 23.247. Area Session IDs are used for MBS sessions with location dependent content. An Area Session ID together with an MBS Session ID (i.e. TMGI or Source Specific IP Multicast address) shall uniquely identify an MBS session in a specific MBS Service Area. An Area Session Identity shall be a decimal number between 0 and 65535 (inclusive).

The concept of MBS Frequency Selection Area ID is defined in clause 6.5.4 of TS 23.247. The MBS Frequency Selection Area (FSA) ID is used for broadcast MBS session to guide the frequency selection of the UE. The MBS FSA ID identifies a preconfigured area within, and in proximity to, which the cell(s) announces the MBS FSA ID and the associating frequency (for details see TS 38.300). MBS FSA ID and their mapping to frequencies are provided to RAN nodes via OAM. An MBS FSA ID shall be a string of 6 hexadecimal digits.

The concept of Associated Session ID is defined in TS 23.247. The Associated Session ID is used to enable NG-RAN to identify the multiple MBS sessions delivering the same content when AF creates multiple broadcast MBS Sessions via different Core Networks in network sharing scenarios. An Associated Session ID may comprise a Source Specific IP Multicast Address (SSM) or a string. See clause 5.9.4.21.1 of TS 29.571 for the encoding of Associated Session ID in 5GC SBIs.

This clause describes the format of the parameters used for AmbientIoT. For further information on the use of the parameters, see clause 5 of TS 23.369.

The AIoT Device Permanent Identifier shall be composed as shown in Figure 31.2-1:

The AIoT Device Permanent Identifier is composed of the following parts:

1. ID Type shall have a fixed length of 8 bits, including the following parts:
   • the bit 7 indicates whether the PLMN ID part is present:
     • 0  PLMN ID part is not included.
     • 1  PLMN ID part is included.
   • the bit 6 indicates whether the NID part is present:
     • 0  NID part is not included.
     • 1  NID part is included.
   • the bit 5 indicates whether the third party identifier part is present:
     • 0  third party identifier part is not included.
     • 1  third party identifier part is included.
   • the bit 4 and bit 3 indicates the type of Identification Information:
     • 00  the type of Identification Information contains an Electronic Product Code (EPC), as defined in clause 14 of GS1 TDS Release 2.1 [153].
     • 01  the type of Identification Information contains an unstructured information
     • 10  and 11 are spare for future use.
   • the bit 2 to bit 0 are spare for future use, and the bits 2 to bit 0 of ID Type shall be set to 000 in this release.
2. The Domain Information includes none, one or more of the following:
   • Optional PLMN Identifier (i.e., MCC and MNC) as specified in clause 12.1.
   • Optional Network Identifier (NID) as specified in clause 12.7.1.
   • Optional third party identifier. When present, the third party identifier shall have a fixed length of 24 bits.
3. The length of Identification Information shall be either 96 bits or 128 bits.

The Filtering Information is used to identify or filter multiple AIoT Devices, the structure is shown in Figure 31.3-1.

The Filtering Information is composed of the following parts, with a maximum length of 256 bits:

1. ID Type shall have a fixed length of 8 bits, as specified in clause 31.2.
2. Optional filtering information for PLMN ID as specified in clause 12.1.
3. Optional filtering information for NID as specified in clause 12.7.1.
4. Optional filtering information for Third Party ID shall have a fixed length of 24 bits.
5. Optional Identification Information Filter(s), there may be multiple filtering element within the Filtering Information for the Identification Information, as specified in clause 5.8 of TS 23.369. The structure is show in Figure 31.3-2.
   It is used to filter the target devices with bitstring of Identification Information equal to a specific value.

• Offset consisting of 7 bits. It represents the position of the Identification Information's bitstring to be compared. Value 0 means the starting position is 1, and value 127 means the starting position is 128.
• Length consisting of 7 bits. It represents the length of value of the bitstring to be compared.
• Component Value consisting of 1 - 128 bits. It represents the component value of the bitstring to be compared.