【文章內(nèi)容簡(jiǎn)介】 paging. C、Phase 2 establishment causes distinguish between location updating and answer to paging. D、Phase 2 establishment causes distinguish between MS originated calls and SMS. 2 establishment causes distinguish between call reestablishment and SMS.55. Which of the criteria below is not influenced by the value of CHAP? A (B) ??? Prioritizing of different users or not. B、Immediate assignment on the TCH allowed or not. C、TCH or SDCCH first. D、Overlaid subcell as a last resort or not. 1 or phase 2 mobiles.(chap is Channel allocation profile)56. Why can BTS power control be used to increase the capacity (that is, tightening the frequency in the network)? E A、It increases the sensitivity of the mobile B、It increases the number of mobiles with high C/I. C、The power consumption in the radio base station is reduceD、 D、It reduces the risk of MS receiver saturation. reduces the number of mobiles with low C/I.57. If the path loss pensation parameter, LCOMPDL, is set to ten, the down regulation in the BTS output power, due to path loss pensation, is limited to: A A、6 dB B、10 dB C、12 dB D、20 dB dB58. Assume that there are 12 frequencies (f1f12) in the hopping frequency set. What default MAIO values are allocated to the first seven TRXs in the cell”? C A、0, 1, 2, 3, 4, 5, and 6 B、1, 2, 3, 4, 5, 6, and 7 C、0, 2, 4, 6, 8, 10, and 1 D、1, 3, 5, 7, 9, 11, and 0 , 3, 6, 9, 1, 4, and 759. What is the result from field measurements of coverage pared with: B A、The design criterion B、The required signal strength C、The required signal strength, plus the lognormal fading margin D、The design criterion, minus the body loss design criterion multiplied by a “probability of coverage” factor60. What are event and level counters? A A、It is the name of the software counters that are stepped in function blocks outside the STS (in RPs and CPs). B、It is the name of the counters of alternative A when they are stored/used in the STS later. C、It is the name of the counters of alternative B when they are stored/used in OSS later. D、Both A and B are correct. B and C are correct.61. What is not taken into account when deriving SQI? E BER B、FER C、HO events D、Speech coder advance(SQI did not consider Timing Advance)62. What is the normal event that leads to an abnormal disconnection and stepping of the drop counter? B A、Failed decoding of speech frames B、Failed decoding of SACCH frames C、Excessive BER D、Poor signal strength timing advance63. If a call is dropped during excessive TA, bad quality and poor signal strength, which cause counter will step? C A、SS drop counter B、Q drop counter C、TA drop counter D、All of these of these(TA drop has the priority when drop has happened)64. Which drop counter is stepped when a call is disconnected because MAXTA is exceeded? C A、SS drop counter B、Q drop counter C、TA drop counter D、All of these of these65. What expression is usually used for the paging success rate? D Successful repeated page attempts (in location area) of total number of first and repeated page attempts (in location area). B、Successful repeated page attempts (in location area) of total number of repeated page attempts (in location area). C、Rate of discarded paging messages in the BSC、 D、Successful first and repeated page attempts (in location area) of total number of first page attempts (in location area). first and repeated page attempts (in location area) of total number of first and second page attempts (in location area).(paging success rate equals the Successful first and repeated page attempts (in location area) of total number of first page attempts)66. What is ICDM? B A、IntraCell Downlink Measurements B、Inter Cell Dependency Matrix C、Interference Combined with Downlink Measurements D、Internal Cell Disturbance Measurements Cell Disturbance Matrix67. What is TET used for? E A、For automatic updates of the network B、To perform measurements of the percentage of interfered traffic C、To predict the traffic distribution in the future D、To find the right frequencies find the right hotspot location68. ‘Call Proceding’是在以下哪個(gè)過程中被用到? A Managed Object Class. A、MOC B、MTC C、Location Update D、handover69. How many ARFCNs can an operator use if allocated 15 MHz uplink and15 MHz downlink (minus one for guardband)? D 15/200k=75 A、14 ARFCNs B、15 ARFCNs C、29 ARFCNs D、75 ARFCNs E、74 ARFCNs70. A cell has three TRUs with an SDCCH/8 configuration. What is the maximum number of telephone calls it can support simultaneously with a halfrate vocoder? B (3*82)*2=44 A、22 B、44 C、8 D、3 71. What cell property is limited by timing advance? C A、Number of simultaneous calls B、Frequency of call setups C、Radius D、Antenna length E、Color72. Reusing frequencies in a cellular pattern (pared to “one big cell”) D A、Increases channel utilization, cost ,and interference. B、Increases capacity and cost, but decreases interference. C、Increases capacity, but decreases cost and interference. D、Increases capacity, cost, and interference. E、Increases channel utilization and cost, but decreases interference.73. A transmitted signal is received at 50 dBm and there is 150 dBm interference at the same frequency. What is C/I? D 50(150)=100 A、3 dB B、30 dB C、6 dB D、100 dB74. A repeater can be used to: D A、Increase the capacity locally (in a traffic hot spot). B、Increase the capacity along highways. C、Get better coverage on water. D、Get better coverage where the area to be covered is blocked by obstacles. none of these purposes75. The wave propagation prediction algorithm 9999 takes a lot into account, but not: D A、Land usage B、Terrain profile C、Curvature of the earth D、Diffraction loss due to obstructing buildings E、Transmitter and receiver antenna effective heig