NOKIA手机工程模式说明
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NOKIA手机工程模式的说明书
简介:
NOKIA移动电话的工程模式名称为“Net monitor"分组画面为改锥、铁锤和手机,诺基亚的工程模式启动后可以通过命令开启或关闭。前面的画面显示系统网络的功能,后面则以介绍手机内软硬件资料为主。
•载频号码、在GSM系统的范围是1-124;
•Carrier number.The rangeinGSM is 1-124
•移动台接收电平(dBM值);
•MS RX level indBM
•接收信号等级,在GSM系统的范围是0-7;
•Received signalquality. The rangeinGSM is 0-7
•移动台发射功率等级,在GSM系统的范围是5-15级;
•MS TXpowerlevel. The range in GSM is 5-15
•C1(多径衰耗标准);
•C1(path loss criterion,used for cellselectionand reselection, therange in GSM is -99..99)
•RLT(音频超时)
•RLT (Radio LinkTimeout)
•时隙,在GSM系统的范围是0-7;
•Timeslot. Therange in GSM is 0-7
•发射转态指示;
•Indication ofthe transmitter status
•网络信息;
•Information of the network parameteres
•TMSI(临时移动电话识别码);
•TMSI (temporary Mobile Subscriber Identity)
•小区ID;
•CellIdentification(Cell ID, number of the usedcell)
•国家码;
•MCC(MobileCountry Code)
•网络码;
•MNC (Mobile NetworkCode)
•本地区域码;
•LAC (LocationArea Code)
•地区码;
•Ciphering (on/off)
•调频;
•Hopping(on/off)
•调频;
•DTX(on/off)
•自动功率控制
Discardingcell barredinformation
工程模式介绍
按左边确认键即可进入工程模式菜单
菜单 10-1
| 16 -55xxx || CH Rx1 Pwr |
|0 1 x xxxx | | TS TA RLT xxxx|
| 51 51 | | Q1 Q1 |
| CCCH || xxCH |
16 -表示 BCCH 载频号码;means BCCH carrier number
-55 -表示接收功率值 ;means RX level (in dBm)
xxx - Pwr表示发射功率等级;Pwr means TX power level
0ﻩ- 时隙;TS(Time Slot)
1ﻩ-时间前置量;显示手机和基站的距离,乘以500以公尺计算;TA - Timing Advance
x - RLT - Radio Link Timeout
xxxx -不详;
51(C1)- 多径衰耗标准,本人英语和基站知识不灵光,大伙自己体会吧C1(path loss criterion, used for cell selection and reselection,the rangein GSM is -99..99) CCCH - 载频类型之一;(xxCH)type of current channel:
AGCH -(Access Grant Channel)允许连接频道由网络到手机的单向频道,安排专用控制信道以完成连接上网;
* SDCC -(SDCCH:Stand-alone Dedicated Control Channel)独立专用控制信道;
* TFR -(TCH:Traffic Channels)业务信道;
* BCCH -(Broadcast Control Channel)广播控制信道;
*SEARCH-手机正在搜索的网络信号;
* NSPS -(No Service & Power Save),无网络服务,手机正处于省电模式;
通话中CHT项变化:AGCH->SDCC->TFR->挂断电话->CCCH
开机时CHT项变化:AGCH->SDCC->BCCH->CCCH
•AGCH - AccessGrant Channel -is the answertoRACH.It'sused to assign a mobile a Stand-alone DedicatedControlChannel(SDCCH). It'sdownlin kand point to point channel.
•SDCC - (SDCCH)Stand-alone DedicatedControl Channel - It'susedfor systemsygnalling:cell set-up,authentication, location update, assigmentto traffic channels andtransmissionofshortmessages
•TFR-(TCH)Traffic Channels- Physical channels alsotransfer user data, which can be either in the formof HalfRatetraffic (6.5kbit/s)or Full Rate(13kb it/s).Another form of traffic channel istheEnhancedFull Rate(EFR)Traf fichChannel.The speech coding inEFRis still dona at 13kbit/s, but the coding mechanism is different thanthat usedfor normal full rate traffic. EFR coding gives better speechqualitythan normal full rate. Traffic channelscant ransmit both speech anddata. these are bi-directional channels.
•BCCH- Broadcast Control Channel contains detailednetworkandcell specific information such as:
o Frequenciesusedin the particularcell.
o Frequency hopping sequence.
o ChannelCombination. In the GSM there are eleven logical channels. Depending onthenumber of frequencies used in a cell, the number ofphysi
cal channels available is eight times the number ofusedfrequecies.most
of thesephysicalchannels have to be allocated for trafficpurposes. There
are morethan one ways in thesealevenlogicalchannels are
mapped onthe available physical channels.Howtheyaremapped vari
es fromcell to celldepending on anumberofcategories.Channel
combinationtells about the mapping method used inthe particularcell o Paging groups.Normally in one cellthere aremore than onepaging channels.To prevent a mobile tolistening toall the paging cha
nnelsfor a pagingmessage, thepaging channelsare dividedsuch
that, agroupof mobile stations listentoaparticularpagingchannel
only.
o Informationon surrounding cells. A mobile station has to know what are t