Section: 8.21.2 SAI field
Content: The coding of SAI (Service Area Identifier) is depicted in Figure 8.21.2-1. Only zero or one SAI field shall be present in ULI IE. Figure 8.21.2-1: SAI field The Location Area Code (LAC) consists of 2 octets. Bit 8 of Octet b+3 is the most significant bit and bit 1 of Octet b+4 the least significant bit. The coding of the location area code is the responsibility of each administration. Coding using full hexadecimal representation (binary, not ASCII encoding) shall be used. The Service Area Code (SAC) consists of 2 octets. Bit 8 of Octet b+5 is the most significant bit and bit 1 of Octet b+6 the least significant bit. The SAC is defined by the operator. See 3GPP TS 23.003[ Numbering, addressing and identification ]  [2] clause 12.5 for more information.