無線網絡優(yōu)化試題new

1、無線網絡優(yōu)化一、單選題(267分)1. How many paging requests can, at the most, fit into one paging block?BA.2B.4C.6D.82. What is the most common value of the hysteresis used when estimating margins for log-normal fading?AA.3dBB.5dBC.6dBD.8dB3. 以下關于小區(qū)負荷分擔（Cell Load Sharing）的描述，哪項是錯誤的？CA.小區(qū)負荷分擔僅限于對TCH的負荷進行分流。B.小區(qū)負荷分擔

2、只能分流靠近邊界的話務。C.小區(qū)負荷分擔可以在不同的BSC之間進行，但必須在同一MSC內。D.小區(qū)負荷分擔的切換只有在目標小區(qū)的話務負荷低到一定程度時才能進行。4. 下面哪個OBJTYPE用于切換原因的統(tǒng)計：CA.NCELLRELB.NICELASSC.NECELHOD.CELEVENTI5. 以下什么信息是在系統(tǒng)消息5中傳送的：CA.TA值B.功率控制值C.Active BA表D.DTX信息6. 基站采用FCOMB，則要求相鄰頻點間隔至少為BA.400kHzB.600kHzC.200kHzD.25kHz7. 如果一個網絡運營商分別有15 MHz的上、下行頻寬，那么他可以獲得多少個GSM頻點

3、(減去一個保護頻點)?DA.600B.799C.75D.748. 9. 接收到的發(fā)射信號強度是 -50 dBm，同時有一同頻干擾信號的強度是-150 dBm ，則C/I是多少?DA.30dBB.6dBC.60dBD.100dB9. 基站數(shù)據中的BSPWRB、BSPWRT、BSPWR、BSTXPWR的關系是：BA.（1） 前兩個是發(fā)射機功率，后兩個是有效發(fā)射功率，有效發(fā)射功率應比發(fā)射機功率小B.（2） 前兩個是發(fā)射機功率，后兩個是有效發(fā)射功率，有效發(fā)射功率應比發(fā)射機功率大C.前兩個是BCCH載波功率，后兩個是DCH載波功率D.前兩個是DCH載波功率，后兩個是BCCH載波功率10. 邊界地區(qū)頻繁的

4、位置更新會使得A的負荷大增。A.SDCCHB.BCCHC.TCHD.PCH11. 8. 三載波小區(qū)配置一個 SDCCH/8 。若使用半速率語音編碼，則該小區(qū)最多可同時支持多少個通話?BA.22B.44C.8D.312. 無線參數(shù)T3212的作用是：BA.通知移動臺多長時間作一次切換。B.通知移動臺多長時間作一次周期性登記。C.限定移動臺在建立呼叫后多長時間內不能進行切換。D.限定移動臺在發(fā)生切換后多長時間內不能再次進行切換。13. 以下D項不是功率控制的優(yōu)點？A.降低電池的功率損耗B.避免接收機處于飽和狀態(tài)，防止遠近效應。C.減少系統(tǒng)內干擾D.減少系統(tǒng)外干擾14. 1、 The purpose

5、 of ramping is to avoid handover decisions to a new neighbor based on only a few samples. What is a common parameter setting for macro cells?DA.SSRAMPSI=10 and SSRAMPSD=20。B.SSRAMPSI=10 and SSRAMPSD=10。C.SSRAMPSI=5 and SSRAMPSD=2。D.SSRAMPSI=2 and SSRAMPSD=5。15. 以下那種儀器不是無線網絡測試設備AA.單通測試儀B.TEMSC.ANT萬禾測

6、試系統(tǒng)D.鼎利路測系統(tǒng)16. 移動臺在空閑狀態(tài)下的小區(qū)選擇和重選是由 哪個網絡實體來決定的？DA.MSCB.BSCC.BTSD.MS17. 以下哪項技術與提高無線抗干擾能力無關BCA.跳頻B.不連續(xù)發(fā)射C.動態(tài)功率控制D.EFR18. 愛立信TEMS無線測試系統(tǒng)不可以進行哪些測試：AA.傳輸鏈路的環(huán)路測試B.鎖頻測試C.掃頻測試D.撥打測試19. 以下那些不可以優(yōu)化小區(qū)的性能。DA.調整小區(qū)參數(shù)B.頻率調整C.網絡結構調整D.選擇不同手機20. 以下那種儀器在無線網絡測試和優(yōu)化中和其他三種有較大區(qū)別AA.ocean信令測試系統(tǒng)B.TEMSC.ANT萬禾測試系統(tǒng)D.鼎利路測系統(tǒng)21. 我們常用的

7、小區(qū)分裂天線半功率波瓣寬為：DA.90B.180C.360D.6522. 以下不能用來平衡小區(qū)話務的方式有：都可以A.載波調整B.小區(qū)負荷分擔C.調整功率D.降低接入電平23. 網優(yōu)日常的信息來源是：DA.話務統(tǒng)計B.路測C.客戶反饋D.以上都是24. 從統(tǒng)計發(fā)現(xiàn)某小區(qū)掉話率偏高，仔細分析其掉話原因，發(fā)現(xiàn)弱信號掉話率占近100%，那么以下分析錯誤的是DA.該小區(qū)可能漏定義了重要鄰區(qū)B.該小區(qū)可能覆蓋太遠C.該小區(qū)的ACCMIN設得太低D.該小區(qū)有硬件故障25. 對于PHASE2+的MS在空閑狀態(tài)下進行小區(qū)選擇和重選的依據是CA.K 算法、L算法B.L算法、K算法C.C1算法、C2算法D.C2算

8、法、C1算法26. 三個小區(qū)A、B、C距離較近，B和C的BCCHNO和BSIC相同，A和B有鄰區(qū)關系，A和C沒有鄰區(qū)關系，如此將可能造成以下哪種現(xiàn)象？AA.A切出成功率降低、B TCH接通率降低B.A切出成功率降低、C TCH接通率降低C.A切入成功率降低、B TCH接通率降低D.A切入成功率降低、C TCH接通率降低27. 關于空閑信道測量功能的描述，哪種是錯誤的？CA.該功能可用于對上行干擾的統(tǒng)計B.該功能可用于信道的選優(yōu)分配C.該功能可用于下行干擾的統(tǒng)計D.該功能可同時用于上行干擾的統(tǒng)計與信道的選優(yōu)分配。28. 下列哪個參數(shù)對下行鏈路的掉話率有較明顯的影響？AA.RLINKTB.ACCM

9、INC.MSRXMIND.MAXTA29. 在人口密集的市區(qū)，最適合使用以下哪種網絡結構？DA.傘形小區(qū)、普通小區(qū)B.傘形小區(qū)、普通小區(qū)、微蜂窩C.傘形小區(qū)、微蜂窩D.普通小區(qū)、微蜂窩30. 小區(qū)的空閑模式下的覆蓋區(qū)域大小與下列哪些參數(shù)有關？AA.ACCMINB.KOFFSETC.RXMIND.KHYST31. 以下關于小區(qū)負荷分擔（Cell Load Sharing）的描述，哪項是錯誤的？CA.小區(qū)負荷分擔僅限于對TCH的負荷進行分流B.小區(qū)負荷分擔只能分流靠近邊界的話務C.小區(qū)負荷分擔可以在不同的BSC之間進行，但必須在同一MSC內D.小區(qū)負荷分擔的切換只有在目標小區(qū)的話務負荷低到一定程度

10、時才能進行32. 若要將某BCCH載波的實際發(fā)射功率由41dBm改為43dBm，則應改變哪個參數(shù)？CA.MSPWRB.MSTXPWRC.MSPWRBD.MSPWRT33. 以下關于無線鏈路超時的描述，哪項是正確的？AA.下行中斷通話是由參數(shù)RLINKT決定的，并由MS業(yè)控制接執(zhí)行的；而上行中斷通話是由參數(shù)RLINKUP決定的，并由BSC來控制執(zhí)行的。B.下行中斷通話是由參數(shù)RLINKUP決定的，并由BSC業(yè)控制執(zhí)行的；而上行中斷通話是由參數(shù)RLINKT決定的，并由MS來控制執(zhí)行的。C.下行中斷通話是由參數(shù)RLINKT決定的，并由BSC業(yè)控制執(zhí)行的；而上行中斷通話是由參數(shù)RLINKUP決定的，并

11、由MS來控制執(zhí)行的。D.下行中斷通話是由參數(shù)RLINKT決定的，而上行中斷通話是由參數(shù)RLNKUP決定的，都由BSC來控制執(zhí)行的。34. 以下關于動態(tài)功率控制的描述，哪項是錯誤的？CA.動態(tài)功率控制是指在通話過程中，MS和BTS的輸出功率可以根據兩者之間的距離作動態(tài)的調整。B.動態(tài)功率控制是由BSC來控制的。C.動態(tài)功率控制在整個信號覆蓋范圍內都可以進行調整。D.采用動態(tài)功率控制，既可以延長手機電池的使用時間，又可以減少無線網絡的干擾。35. 假設有10M的頻段,若采用4-12的頻率復用方式,基站的最大配置可以是CA.4/4/4B.5/4/4C.5/5/436. BSTXPWR=43，BSPW

12、RMIN=20時，動態(tài)功率的最大調整范圍是：DA.30dBmB.62dBmC.13dBmD.23dBm37. 小區(qū)的空閑模式的覆蓋區(qū)域大小的調整可采用下列參數(shù)？BA.MBCCHNOB.CROC.RXSUFFD.LISTTEYP38. SSRAMPSD的主要作用是：AA.調整相鄰小區(qū)測量報告起作用的時間，用于防止出現(xiàn)不穩(wěn)定的相鄰小區(qū)測量報告被用于切換算法。B.用于調整相鄰小區(qū)的候選資格。C.用于確定小區(qū)屬于K小區(qū)還是L小區(qū)。D.用于調整候選小區(qū)的數(shù)量多少。39. 更換不同增益的天線后應修改下列哪些功率參數(shù)？CA.BSPWRT及MSTXPWR。B.BSPWRT、BSPWRB及MSTXPWR。C.B

13、STXPWR及BSPWR。D.BSTXPWR、BSPWR及CCHPWR。40. 對于信號強度的懲罰，下列哪個是錯誤的？BA.在定位算法過程，懲罰包括LOC及HCS兩種。B.LOC懲罰只包括質差切換懲罰和超TA切換懲罰。C.HCS懲罰是發(fā)生在二層小區(qū)向一層小區(qū)切換的情況。D.當切換失敗、低質量緊急切換和過大時間提前（Timing Advance）緊急切換定位算法會執(zhí)行相應的懲罰。41. 當調整哪個參數(shù)不當時會出現(xiàn)不穩(wěn)定的切換區(qū)域？AA.KOFFSETB.KHYSTC.CRHD.TRHYST42. 下列關于質差切換，哪種說法是錯誤的？BA.質差切換的區(qū)域是由參數(shù)BQOFFSET來決定的。B.質差切

14、換是一種非正常的切換類型。C.質差切換是一種緊急切換，其的優(yōu)先等級高于正常切換。D.質差切換只能發(fā)生在離基站較遠的小區(qū)邊緣。43. 對于輔助網絡功能的說明，哪項是錯誤的？AA.負荷分擔功能可以使話務忙的小區(qū)上HYST區(qū)域外的話務分擔到較空閑的小區(qū)上。B.小區(qū)分層結構可以使一些小區(qū)具有較高的優(yōu)先等級。C.小區(qū)范圍擴展功能可使小區(qū)的最大覆蓋范圍從35公里擴展到72公里。D.分配到其它小區(qū)功能可提高設備的利用率。44. 關于分配到其他小區(qū)功能，下列哪種說法是錯誤的？CA.它包括指配到較好的小區(qū)和指配到劣質小區(qū)兩種情況B.指配到較好小區(qū)是指配時出現(xiàn)相鄰小區(qū)比當前小區(qū)更好。C.當服務小區(qū)在指配時TCH全

15、忙，這時肯定會出現(xiàn)指配到劣質小區(qū)情況。D.這個功能由參數(shù)ASSOC來激活。45. 下列關于切換的說明，哪種是錯誤的？DA.負荷分擔引起的切換是一種非正常的切換類型。B.移動臺處于微蜂窩覆蓋區(qū)內并在第二層小區(qū)上通話時，當其接收到的1層小區(qū)的信號強度高于12層間的門限值時一定會切入1層小區(qū)。C.小區(qū)內切換在不跳頻的情況下可以較好地改善通話質量。D.移動臺處于微蜂窩覆蓋區(qū)內時，當其接收到的1層小區(qū)的信號強度低于12層間的門限值時一定會切入2層小區(qū)。46. 根據上下行的平衡公式計算，基站最大發(fā)射功率是大為？CA.45dBmB.41dBmC.43dBmD.42dBm47. 下列哪些因素能夠影響到系統(tǒng)的切

16、換性能？CA.頻率及BSIC規(guī)劃、邏輯信道的映射方案及BA表的長度。B.多層小區(qū)間的門限值及邏輯信道的映射方案。C.頻率及BSIC規(guī)劃、多層小區(qū)間的門限值及BA表的長度。D.上面三個答案都不對。48. OL與UL小區(qū)間的切換由下列哪組參數(shù)決定的？CA.BQOFFSET與AWOFFSETB.QLIMDL與QLIMULC.LOL與TAOLD.LOL與TALIM49. 對于BA表的描述，下列哪個是錯誤的？AA.立即更新方法只用于空閑模式表而默認方法只用于激活模式。B.空閑模式表可取較長而激活模式表盡量短。C.激活模式表最好不要超出16個。D.空閑模式表用于移動臺的空閑模式而激活模式表及于移動臺的激活

17、模式。50. 關于一層小區(qū)的描述，下列哪種說法是不正確的？BA.第一層小區(qū)不論在何種情況下都有最優(yōu)先的等級。B.當移動臺發(fā)生差質時將會優(yōu)先切往一層小區(qū)。C.當移動臺在一層小區(qū)通話時，如果周圍沒有相鄰的一層小區(qū)，將會在一定區(qū)域內失去選優(yōu)切換的功能。D.一層小區(qū)只用于室內覆蓋。51. 對于動態(tài)功率控制，下列描述哪個是錯誤的？DA.參數(shù)SSDES用于上行動態(tài)功率控制而參數(shù)SSDESDL用于下行動態(tài)功率控制。B.上行鏈路的動態(tài)功率控制是控制移動臺的發(fā)射功率。C.下行鏈路的動態(tài)功率控制是控制BTS的發(fā)射功率。D.參數(shù)INTDES及INTLEN是上下行功態(tài)功率控制的初始狀態(tài)控制參數(shù)。52. 下列哪個參數(shù)決

18、定話務分擔區(qū)域？BA.KOFFSETB.RHYSTC.CRHD.BQOFFSET53. 下列關于負荷分擔功能的描述，哪種說法是錯誤的？DA.負荷分擔比例可以通過參數(shù)RHYST來調整。B.當RHYST=100時容易出現(xiàn)乒乓切換。C.加大KHYST值能夠增強負荷分擔功能所起的作用。D.加大KHYST值容易出現(xiàn)乒乓切換。54. 下列關于小區(qū)內切換的說明，哪種是錯誤的？DA.小區(qū)內切換能夠改善系統(tǒng)內的短期干擾對通話質量的影響。B.小區(qū)內切換的作用在開啟跳頻的情況下將會減弱。C.在開啟跳頻的系統(tǒng)中，突然出現(xiàn)頻繁的內切換，可能是由于部分載波出現(xiàn)故障。D.小區(qū)內切換可以發(fā)生在整個小區(qū)的覆蓋范圍內。55. 1

19、7. 如果下列鏈路的LEVTHR=80，LEVHYST=3，LAYER=1移動臺將可能在下列哪個電平上切出一層小區(qū)？CA.-65dBmB.-75dBmC.-85dBmD.-77dBm56. 當參數(shù)RHYST=70時，緩沖帶內有多少區(qū)域內的MS能夠進行負荷分擔？AA.70%B.30%C.170%D.100%57. 下列關于負荷分擔功能的描述，哪種說法是錯誤的？BA.當小區(qū)的空閑信道數(shù)滿足CLSLEVEL的要求時可以向相鄰小區(qū)轉移話務。B.當小區(qū)的空閑信道數(shù)滿足CLSACC的要求時可以向相鄰小區(qū)轉移話務。C.當小區(qū)的空閑信道數(shù)滿足CLSACC的要求可接受分擔過來的話務。D.一個小區(qū)可以設置成只接收

20、話務而不能向外轉移話務。58. 以下關于快速移動的移動臺，下列描述哪個是錯的？BA.可以通過調整參數(shù)SSLENDL來調整其動態(tài)功率控制速度使其適應無線環(huán)境的要求。B.如果發(fā)現(xiàn)在動態(tài)功率調整區(qū)域內出現(xiàn)切換不成功現(xiàn)象可以調整參數(shù)QCOMPDL及參數(shù)LCOMPDL來解決。C.如果發(fā)現(xiàn)在動態(tài)功率調整區(qū)域內出現(xiàn)弱信號情況，可以通過增大參數(shù)SSDESDL來增大該區(qū)域的信號強度。D.如果發(fā)現(xiàn)在動態(tài)功率調整區(qū)域內出現(xiàn)質差的現(xiàn)象，可以通過調整參數(shù)QDESDL改善。59. 下列哪個參數(shù)對上行鏈路的掉話率有較明顯的影響？AA.RLINKUPB.ACCMINC.MSRXMIND.RLINKT60. 以下關于幾種說法，

21、哪個是錯的？AA.調整KOFFSET的值可以調整小區(qū)的話務，它實質上通過調整基站的EIRP功率來實現(xiàn)的。B.調整KHYST值可以調整兩個相鄰小區(qū)間的切換緩沖區(qū)域的大小。C.如果出現(xiàn)乒乓切換，可以通過調整KHYST值來克服。D.如果小區(qū)的話務太忙，可以通過調整KOFFSET來轉移話務。61. 對于有快速移動臺的小區(qū)，下列哪種調整方法是不合適的？AA.減小TAAVELEN的值使其適應快速移動的無線環(huán)境。B.減小SSRAMPSI的值使其適應快速移動的無線環(huán)境。C.減小SSRAMPSD的值使其適應快速移動的無線環(huán)境。D.減小SSLENSD的值使其適應快速移動的無線環(huán)境。62. 下列幾種說法，哪種是錯誤

22、的？AA.上行鏈路的切換決定于基站接收到的上行信號強度的大小。B.下行鏈路的切換決定于移動臺接收到的下行信號強度的大小。C.上、下行鏈路的切換決定于移動臺接收到的下行信號強度的大小。D.對于相鄰小區(qū)，上下行鏈路的切換決定于移動臺接收到的下行信號強度的大小，而對于服務小區(qū)來說上下行鏈路的切換決定于移動臺接收到的下行信號強度的大小。63. 上行質差切換門限是由下列哪個參數(shù)來設定的？AA.QLIMULB.QOFFSETULC.TALIMULD.QLIMDL64. 是否啟用上行L-算法，是由哪些參數(shù)來決定的？DA.MSRXSUFFB.BSRXMINC.MSRXMIND.BSRXSUFF65. 邏輯信道

23、的自適應配置是為了解決A信道的擁塞A.SDCCHB.TCH66. 分配到其它小區(qū)的特性由兩個參數(shù)來決定,一個是BSC,另一個是CELL,下列哪一個是關于小區(qū)的BA.ASSOCB.AW67. MAIO是為了減小頻率干擾的，分為人工配置和缺省配置。哪一種復用形式建議采用人工配置的：CA.1/3B.3/9C.1/168. RHYST這個參數(shù)是CA.關于小區(qū)切換關系的B.關于滯后區(qū)的參數(shù)C.是小區(qū)負荷分擔中來減小滯后區(qū)域的參數(shù)69. 當我們作TEMS測試時，如果DTX打開的情況下，接收信號場強應設置成哪種模式：BA.FULL SETB.SUB SET70. BTS動態(tài)功率控制的一些描述，正確的是：CA

24、.減小手機在低C/I的情況B.減小由于功率太大，接收飽和失真的情況C.計算時要考慮信號場強和質量71. 在locating中，計算小區(qū)級別時K-cell和L-cell哪種小區(qū)級別較高：BA.K-cellB.L-cell72. 在locating中，我們不僅要考慮小區(qū)的接收信號場強，還要考慮信號的損耗（path loss）這是：BA.K算法B.L算法73. 下列哪個參數(shù)是與通話掛斷原則（disconnection Criteria）相關的：CA.KHYSTB.REGINTC.RLINKT74. Which of the following algorithms is made up of the

25、 three stages: Mcriterion, K-criterion and L-Creterion?AA.Ericsson-algorithmB.GSM-algorithmC.Ciphering-algorithm75. Which of the following functions is designed to reduce congestion in cells?BA.HandoverB.Cell Load SharingC.Frequency Hopping76. How many TSs and E1 are required for traffic on the Aatr

26、 interface when the traffic to be supported is 710 Erlang and GoS =1%A.738 TSs, 24 E1sB.185 TSs, 6 E1sC.683 TSs, 23 E1s77. Which of the following Signaling System No. 7 Protocols are used for routing of signaling messages?BA.MAP, TCAPB.TCAP, SCCPC.MTP, SCP78. Which protocol performs the addressing f

27、or circuit related signaling?A.MTPB.SCCPC.ISUP79. Calculate the processor capacity in terms of calls/s when the traffic load is 72% and the load per call is 25ms.A.28,8 calls/sB.31,4 calls/sC.33,8 calls/s80. Which of these different “dropped call rates” gives a “subscriber perceived” drop rate?BA.Dr

28、opped TCH connections of the total number of TCH connectionsB.Dropped calls of the total number of calls terminated in the cellC.Erlang minutes per dropped TCH connectionD.Average call drops experienced during one hour talk timeE.All of these81. Which of Ericssons Network Improvement Performance Ser

29、vices includes optimization activities?EA.Transmission Network Review (TNR)B.Network Design and Performance Consulting (NDPC)C.Brief System Audit (BSA)D.System Performance Review (SPR)E.Radio Network Improvement (RNI)82. What is added to the MS sensitivity level to obtain the required signal strengt

30、h, SSreq?CA.Rayleigh fading marginB.Rayleigh fading margin and interference marginC.Rayleigh fading margin, interference margin, and body lossD.Rayleigh fading margin and body lossE.Interference margin and body loss83. What is the most common value of the hysteresis used when estimating margins for

31、log-normal fading?AA.3 dBB.5dBC.6dBD.8dBE.10dB84. Use the enclosed Erlang Table to work out which is the optimum SDCCH configuration using four TRXs, if the SDCCH/TCH traffic ratio is 30% and the required GoS on the TCH is 2%. (Assume no cell broadcast and no immediate assignment on the TCH.)CA.SDCC

32、H/8B.SDCCH/8 + SDCCH/4C.2*SDCCH/8D.2*SDCCH/8 + SDCCH/4E.3*SDCCH/885. AGBLK must be set to a non-zero value (that is = 1 in Ericssons GSM system), if:AA.Cell broadcast is used in a cell with a non-combined configuration.B.Cell broadcast is used in a cell with a combined configuration.C.System informa

33、tion, type 4, is sent on the BCCH.D.System information, type 5, is sent on the BCCH.E.MFRMS=2 or MFRMS=986. Which is the most important factor for determining the paging capacity in the BTS?DA.MFRMS (controls the number of paging groups)B.AGBLK (reserves a paging block for access grant)C.Paging stra

34、tegy (for example, second page in the MSC service area or in the LA)D.Combined or non-combined mappingE.The use of cell broadcast87. Are the UL signal strength measurements used in the locating algorithm?EA.Yes, of course.B.No, not at all.C.Yes, but it is used only to check if conditions for intra-c

35、ell and urgency handovers are fulfilled.D.No, it is used only for power control of the mobile.E.Yes, but it is used only to check if the conditions for intra-cell handover are fulfilled.88. What is the parameter TINIT used for?AA.To set the initial value of the timer that inhibits handover after a c

36、hange of channel.B.To set the initial value of the timer that controls the measurement events of the mobile.C.To set the initial value of the timer that controls if handover during signaling is allowed or not.D.To set the initial value of the timer that controls if handover to another BSC is allowed

37、 or not.E.To set the initial value of the timer that controls the filtering process.89. The purpose of ramping is to avoid handover decisions to a new neighbor based on only a few samples. What is a common parameter setting for macro cells?EA.SSRAMPSI=10 and SSRAMPSD=20B.SSRAMPSI=20 and SSRAMPSD=10C

38、.SSRAMPSI=10 and SSRAMPSD=10D.SSRAMPSI=5 and SSRAMPSD=2E.SSRAMPSI=2 and SSRAMPSD=590. What is the basic ranking in the Ericsson1 locating algorithm based on?AA.Relative signal strengthB.Absolute signal strengthC.Minimum signal strengthD.Sufficient signal strengthE.Quality91. What is the difference b

39、etween BSTXPWR at the “preferred reference point” and the reported signal strength in the mobile?CA.Path lossB.Path loss, minus antenna gainC.Path loss, minus antenna gain, plus feeder lossD.Path loss, minus antenna gain plus feeder and combiner lossesE.There is no difference92. What is the purpose

40、of setting BSRXSUFF to 150 dBm and MSRXSUFF to 0 dBm in all cells?DA.To make sure that the uplink signal strength influences the basic ranking.B.To enable path loss ranking.C.To ensure that the signal strength on the uplink is always sufficient.D.To obtain an absolute signal strength ranking.E.To di

41、sable path loss ranking.93. When may the merry-go-round effect occur?CA.If TINIT has a low valueB.If the hysteresis is too smallC.If the offset is non-zeroD.If PSSTEMP is set to a low valueE.If PTIMTEMP is set to a low value94. What is TRHYST used for?BA.It modifies the sufficient level condition fo

42、r neighboring cells.B.It modifies the sufficient level condition for neighboring cells and the serving cell.C.It is used to move the L-L border.D.It is used to move the K-K border.E.It is used to move both the K-K and the L-L borders.95. What is BQOFFSET used for?EA.It is used to trigger a bad quali

43、ty urgency condition.B.It is used as a signal strength offset to penalize cells after a bad quality urgency handover.C.It is used to offset the trigger conditions for a bad quality urgency handover.D.It is used to prevent a new handover attempt in a cell after handover failure.E.It is used to restri

44、ct the distance to a candidate cell, if a bad quality urgency condition is triggered.96. Cells in the basic ranking list are divided into categories. How many categories are there, if the serving cell is considered as a category of its own?BA.2B.3C.8D.10E.1197. The Figure below shows the outcome fro

45、m basic ranking. Assuming all cells except D and H fulfil band and layer thresholds, what cells should be prioritized and in what order?EA.A, B, F, G, E, and CB.G, E, B, A, C, and FC.G, E, B, and AD.B, A, F, G, E, and CE.A, B, E, and G98. The idle mobile derives an entity called C1. How is C1 used?A

46、A.C1 for a particular cell must be larger than zero for a mobile to be allowed to camp on that cell.B.C1 is a quality check and if not fulfilled, the idle mobile must try another cell to camp on.C.C1 and BSIC are reported to the serving cell, at least, once every five seconds to enable network contr

47、olled cell re-selection.D.At cell re-selection, the cell with the largest derived C1 is chosen to camp on.E.C1 is set to yes, if both CB and CBQ are low.99. The idle mobile derives an entity called C2. How is C2 used?DA.C2 for a particular cell must be larger than zero for a mobile to be allowed to

48、camp on that cell.B.C2 is a quality check and if not fulfilled, the idle mobile must try another cell to camp on.C.C2 and BSIC are reported to the serving cell, at least, once every five seconds to enable network controlled cell re-selection.D.At cell re-selection, the cell with the largest derived

49、C2 is chosen to camp on.E.C2 is set to yes, if both CB and CBQ are low.100. What is CRH used for?CA.It is used in combination with ACCMIN to cater for a layered cell structure in a dual band network.B.It is used as a temporary offset to make a cell appear better during cell re-selection.C.It is used

50、 as a hysteresis between location area borders.D.It is used in a limited service state to enable emergency calls.E.It is the maximum number of repeated unsuccessful access attempts.101. An idle mode mobile must read the BCCH data and decode BSIC for the neighboring cells, at least, once during certa

51、in time intervals. What are the intervals?DA.Five seconds (BSIC and BCCH data)B.Five seconds (BSIC) and 30 seconds (BCCH data)C.30 seconds (BSIC) and 30 seconds (BCCH data)D.30 seconds (BSIC) and five minutes (BCCH data)E.Five minutes (BSIC) and five minutes (BCCH data)102. What is one of the differ

52、ences between the phase 1 and phase 2 establishment causes?DA.Phase 2 establishment causes distinguish between answer to paging and call re-establishment.B.Phase 2 establishment causes distinguish between MS originated call and answer to 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.E.Phase 2 establishment causes distingu