Across
- 1. Protects against intruders in air interface
- 4. final CCCH message sent by the base station before a subscriber is moved off the control channel.
- 7. The only reverse link control channel
- 8. Reduces no. of queries to Home Location Registers
- 11. A3 algorithm is for
- 12. never transmitted over the radio channel
Down
- 2. The _ key may be changed at regular intervals to avoid eavesdropping
- 3. Encryption algorithms rely on particular and large frame no.s provided by
- 5. On either side of the midamble there are control bits called _ flags.
- 6. Used to ensure subscriber identity confidentiality
- 9. Consists of TRX units
- 10. white list, gray list and black list are its sub-classes