tailieunhanh - WIRELESS TECHNOLOGYProtocols, Standards, and Techniques pdf phần 5

Trường này truyền tải các khe cắm chu kỳ để được sử dụng bởi các trạm di động để giám sát các kênh phân trang. Điều này chỉ áp dụng đối với trạm di động hoạt động trong chế độ rãnh. | SLOT_CYCLEJNDEX Slot Cycle Index. This field conveys the slot cycle to be used by the mobile station to monitor the paging channel. This is only applicable to mobile stations operating in the slotted mode. A mobile station operating in the slotted mode monitors the paging channel for one or two slots per slot cycle. SPECIALSERVICE Special Service Option Indicator. This field indicates whether special service or default service is requested. SRCH_WIN_A Search Window Size for Active Set and Candidate Set. This field conveys the search window size range of PN offsets to be used by the mobile station to search for multipath components of the pilots in the active set and candidate set. SRCH_WIN_N Search Window Size for Neighbor Set. This field conveys the search window size range of PN offsets to be used by the mobile station to search for components of pilots in the neighbor set. SRCH_WIN_R Search Window Size for Remaining Set. This field conveys the search window size range of PN offsets to be used by the mobile station to search for components of pilots in the remaining set. SSD Shared Secret Data. As part of the authentication procedure encryption and voice privacy SSD is 128-bit information stored in the semipermanent memory of the mobile station. It is composed of two equal-sized parts SSD_A used to support the authentication procedures and SSD_B used to support voice privacy and message encryption. SSD is not accessible to the user. SSD is generated according to a given cryptographic algorithm and is initialized with mobile station specific information random data and the A-key of the mobile station a 64-bit secret key known only to the mobile station and to its associated HLR AC . SYS_ORDERING System Ordering. This field conveys the order in which the mobile station should attempt to obtain service from the analog system System A only System B only System A first then System B if the first option was unsuccessful etc. SYS-TIME System Time. This field indicates

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