A.BER B.FER C.HO events D.Speech coder E.Timing

advance

71．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 SAACH frames C.Excessive

BER D.Poor

signal strength E.Excessive timing advance

72．为避免快速移动的移动台切入覆盖范围不大的微蜂窝，可调整下列哪组参数？ C

A.PSSHF、PTIMHF B.PSSBQ、PTIMBQ C.PSSTEMP、PTIMTEMP D.PSSTA、PTIMTA 73．如果下列链路的LEVTHR=90，LEVHYST=3，移动台将可能在下列哪个电平上切出一层小区？ D

A.-65dBm B.-75dBm C.-85dBm D.-95dBm

74．下列关于小区内切换的几种说法，

33

哪种是错误的？ A

A.在每个小区中，小区内切换所能够进行的次数是由参数MAXIHO定义的，切换超过这个数值后将不能进行切换。 B.小区内切中有TINIT、TIHO及TMAXIHO三个计数器。 C.计数器TINIT是两次小区内切换发生的最小时间间隔。 D.当TMAXIHO计满后小区

内切要在TINIT+TIHO计满后才能发生。

75．小区选择C1算法跟以下那个因素有关? C

A.Rxlev_min(n) B.MS_Txpwr_Max C.Rxlev_Access_Min D.BS_Txpwr_Max

76．为避免因过多跨越LAC的小区重选而造成的SDCCH的阻塞,我们将与该小区有切换关系且与之LAC不同的相邻小区 B 提高

A.T3212 B.Cell_Reselect_Hysteresis C.Cell_Reselect_offset

77． 网络中出现同频同BSIC时， A 。

A.有可能会出现切换成功率低，话音接通率低，信令接通低 B.一定会出现切换

成功率低，话音接通率低，信令接通低 C.对信令接通率无影响 D.对通话质量有影响

78．SCH用于向移动台发送 C 信息。

A.频率校正信息 B.功率控制及时间提前量 C.TDMA帧号和BSICD、系统信息

79．为避免快速移动的移动台切入覆盖范围不大的微蜂窝，可调整下列哪组参数？ C

A.PSSHF、PTIMHF。 B.PSSBQ、PTIMBQ

。

C.PSSTEMP

、

PTIMTEMP。 D.PSSTA、PTIMTA。 80． 逻辑信道的自适应配置是为了解决 A 信道的拥塞。

A.SDCCH B.TCH

81．分配到其他小区的特性由两个参数决定，一个在BSC，另一个在CELL，下列哪一个是关于小区的参数。 B

A.ASSOC B.AW

82．MAIO是为了减少频率干扰的，分为人工配置和缺省配置，哪一种复用方式建议采用人工配置： C

34

A.1/3 B.3/9 C.1/1

83．当我们作TEMS测试时，如果DTX

打开的情况下，接收信号场强应设置成 B 模式。

A.FULLSET B.SUBSET

84． 以下关于立即分配（Immediate

Assignment）和分配（Assignment）的描述，哪项是错误的？ C

A.每个成功的话音/数据呼叫都要经过立即分配和分配两个过程。 B.立即分配总在分配之前。 C.立即分配是指分配SDCCH，而分配是指分配TCH。 D.立即分配和分配总是成对出现的。

85． 在多层小区的规划中，我们一般把MICROCELL放在哪一个LAYER: A

A.1 B.2 C.3

86．下列 A 技术无法抑制系统内干扰。

A.分集接收 B.不连续发送 C.动态功率控制 D.跳频

87． D 的小区禁止PHASE2手机起

呼.

A.CBQ=HIGH，CB=YES B.CBQ=LOW，CB=NO C.CBQ=HIGH

，

CB=NO D.CBQ=LOW，CB=YES 88．网络中出现同频同BSIC时， A 。

A.有可能会出现切换成功率低，话音接通率低，信令接通低 B.一定会出现切换成功率低，话音接通率低，信令接通低 C.对信令接通率无影响 D.对通话质量有影响

89．由于小区空闲模式覆盖区与激活模式覆盖区不相等将不会出现下列哪个现象？ B

A.小区的内切数与外切数出现明显的差别。 B.如果空闲模式覆盖区小时出现外切数增加。 C.如果容闲模式覆盖区大是该小区的呼叫建立数将会较大。 D.以上三个答案都不对。

90．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? E

35

A.SSRAMPSI=10 and

SSRAMPSD=20 B.SSRAMPSI=20 and

SSRAMPSD=10 C.SSRAMPSI=10 and

SSRAMPSD=10 D.SSRAMPSI=5 and SSRAMPSD=2 E.SSRAMPSI=2 and SSRAMPSD=5

91．What is the basic ranking in the Ericsson1 locating algorithm based on? A

A.Relative signal strength B.Absolute

signal strength C.Minimum signal strength D.Sufficient signal

strength E.Quality

92．What is the difference between BSTXPWR at the “preferred reference point” and the reported signal strength in the mobile? C

A.Path loss B.Path loss, minus

antenna gain C.Path loss, minus antenna gain, plus feeder loss D.Path loss, minus antenna gain plus feeder and combiner losses E.There is no difference

93．What is the purpose of setting BSRXSUFF to –150 dBm and MSRXSUFF to 0 dBm in all cells? D

A.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 disable path loss ranking.

94． When may the merry-go-round effect occur? C

A.If TINIT has a low value B.If the hysteresis is too small C.If the offset is non-zero D.If PSSTEMP is set to a low value E.If PTIMTEMP is set to a low value

95．What is TRHYST used for? B

A.It modifies the sufficient level condition for 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

36

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.

96．What is BQOFFSET used for? E

A.It is used to trigger a bad quality 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 restrict the distance to a candidate cell, if a bad quality urgency condition is triggered.

97．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? B

A.2 B.3 C.8 D.10 E.11

98． What is one of the differences between the phase 1 and phase 2 establishment caus