Section: 10.5.3.11 LSA Identifier
Content: This element uniquely identifies a LSA. The LSA Identifier information element is coded as shown in figure 10.68c/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] . The LSA Identifier is a type 4 information element with a length of 2 or 5 octets. Figure 10.68c/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ]  LSA Identifier information element If the Length = 0, then no LSA ID is included. This is used to indicate that the MS has moved to an area where there is no LSA available for that MS. Octets 3-5 are coded as specified in 3GPP TS 23.003[ Numbering, addressing and identification ]  [10], 'Identification of Localised Service Area'. Bit 8 of octet 3 is the most significant bit.