4.
CLIP Connected Line identification
Presentation, an ISDN service which shows the connected number to the caller.
CLIP Connected Line identification
Presentation, an ISDN service which shows the connected number to the caller.
5.
CLIR Connected Line Identification
Restriction, A supplementary service
enabling the calling party to restrict the identity of the line on which they
are calling.
CLIR Connected Line Identification
Restriction, A supplementary service
enabling the calling party to restrict the identity of the line on which they
are calling.
6.
AMPS（Advanced Mobile Phone System）高级移动电话系统。就是大家熟知的第一代蜂窝技术，使用单独的频带，或者说“信道”，为每次对话服务。美国贝尔实验室于1969年开始研究，1978年研究结束，1979年在芝加哥组网试用，1983年投入使用，其工作频段为800MHz，频道间隔30Hz，基站发射功率45W。
AMPS（Advanced Mobile Phone System）高级移动电话系统。就是大家熟知的第一代蜂窝技术，使用单独的频带，或者说“信道”，为每次对话服务。美国贝尔实验室于1969年开始研究，1978年研究结束，1979年在芝加哥组网试用，1983年投入使用，其工作频段为800MHz，频道间隔30Hz，基站发射功率45W。
7.
Universal Mobile Telecommunications System (UMTS) is one of the
third-generation (3G) mobile telecommunications technologies
Universal Mobile Telecommunications System (UMTS) is one of the
third-generation (3G) mobile telecommunications technologies
USIM Universal
Subscriber Identity Module, runs on a UICC
which is inserted in a 3G mobile phone. The equivalent of USIM on GSM
networks is SIM,
and on CDMA networks
it is RUIM.
Subscriber Identity Module, runs on a UICC
which is inserted in a 3G mobile phone. The equivalent of USIM on GSM
networks is SIM,
and on CDMA networks
it is RUIM.
8.
High Speed Circuit Switched Data (HSCSD)
High Speed Circuit Switched Data (HSCSD)
9.
Value added services (VAS) is popular as a telecommunications industry term for non-core
services or, in short, all services beyond standard voice calls and fax
transmissions but, it can be used in ANY service industry (eg. Web 2.0) for the
services providers provide for no cost to promote their main service business.
Value added services (VAS) is popular as a telecommunications industry term for non-core
services or, in short, all services beyond standard voice calls and fax
transmissions but, it can be used in ANY service industry (eg. Web 2.0) for the
services providers provide for no cost to promote their main service business.
10. CSP Customer Service Profile
11. ST (service table)
12. PLMN public land mobile network公众陆地移动电话网
13. ESN(Electronic Serial Number), a 32-bit
control number used for cell phone activation in wireless carrier networks
control number used for cell phone activation in wireless carrier networks
14. IMSI An International
Mobile Subscriber Identity or IMSI (pronounced /ˈɪmzi/) is a unique number
associated with all GSM and UMTS network mobile
phone users.
Mobile Subscriber Identity or IMSI (pronounced /ˈɪmzi/) is a unique number
associated with all GSM and UMTS network mobile
phone users.
15. DTMF（ Dual Tone Multi-Frequency ）即双音多频信令，在全世界范围内，逐渐使用在按键式电话机上，因其提供更高的拨号速率，迅速取代了传统转盘式电话机使用的拨号脉冲信令。近年来 DTMF 也应用在交互式控制中，诸如语言菜单、语言邮件、电话银行等。DTMF
编解码器在编码时将击键或数字信息转换成双音信号并发送，解码时在收到的 DTMF 信号中检测击键或数字信息的存在性。
编解码器在编码时将击键或数字信息转换成双音信号并发送，解码时在收到的 DTMF 信号中检测击键或数字信息的存在性。
16. Mobile switching center (MSC)
17. Cell --- A cell when applied to mobile technologies
defines a unit of geographical area
defines a unit of geographical area
18. CI---The cell identity is a 16bit identifier in GSM and
UMTS. When combined with the LAI (Location Area Identity) or RAI (Routing Area
Identity) the result is termed the CGI (Cell Global Identity).
UMTS. When combined with the LAI (Location Area Identity) or RAI (Routing Area
Identity) the result is termed the CGI (Cell Global Identity).
19. LA -- A Location Area is a number of cells (defined by the
mobile operator) throughout which a GSM / UMTS mobile will
be paged
mobile operator) throughout which a GSM / UMTS mobile will
be paged
20. LAC -- The Location
Area Code uniquely identifies a LA (Location Area)
within a PLMN (Public Land Mobile
Network). It may range from 0 to 65,535.
Area Code uniquely identifies a LA (Location Area)
within a PLMN (Public Land Mobile
Network). It may range from 0 to 65,535.
21. LAI -- The Location
Area Identity uniquely identifies a LA (Location Area)
within any PLMN (Public Land Mobile
Network). It is comprised of the MCC (Mobile Country
Code), MNC (Mobile Network Code)
and the LAC (Location Area Code).
Area Identity uniquely identifies a LA (Location Area)
within any PLMN (Public Land Mobile
Network). It is comprised of the MCC (Mobile Country
Code), MNC (Mobile Network Code)
and the LAC (Location Area Code).
22. CGI--The Cell Global Identity is the concatenation of the
LAI (Location Area Identity) and the CI (Cell Identity) and uniquely identifies a given cell.
LAI (Location Area Identity) and the CI (Cell Identity) and uniquely identifies a given cell.
23. SID A System
Identification Number (SID)
is used to identify a cellular network in a certain area. It is a Global number
to identify base stations for AMPS,
TDMA or CDMA networks.
Identification Number (SID)
is used to identify a cellular network in a certain area. It is a Global number
to identify base stations for AMPS,
TDMA or CDMA networks.
25. This is a list of Mobile Country
Codes (MCCs) defined in ITU E.212 ("Land Mobile
Numbering Plan") for use in identifying mobile stations in wireless telephone networks, particularly GSM and UMTS networks. An MCC is often
used in combination with a Mobile Network Code (as a "MCC / MNC
tuple") in order to uniquely identify a network operator
Codes (MCCs) defined in ITU E.212 ("Land Mobile
Numbering Plan") for use in identifying mobile stations in wireless telephone networks, particularly GSM and UMTS networks. An MCC is often
used in combination with a Mobile Network Code (as a "MCC / MNC
tuple") in order to uniquely identify a network operator
26. A Mobile Network Code
(MNC) is used in combination with a Mobile Country Code (MCC) (also known as a
"MCC / MNC tuple") to uniquely identify a mobile phone
operator/carrier using the GSM, CDMA, iDEN, TETRA and UMTS public land mobile networks and some satellite mobile networks.
(MNC) is used in combination with a Mobile Country Code (MCC) (also known as a
"MCC / MNC tuple") to uniquely identify a mobile phone
operator/carrier using the GSM, CDMA, iDEN, TETRA and UMTS public land mobile networks and some satellite mobile networks.
27. RAT Radio Access Technology
This indicates the type of radio technology to access the
CN (Core Network). Example technologies being UTRA (UMTS Terrestrial Radio
Access), CDMA2000?, DECT (Digital Enhanced Cordless Technology), GERAN
(GSM EDGE Radio Access Network) etc.
CN (Core Network). Example technologies being UTRA (UMTS Terrestrial Radio
Access), CDMA2000?, DECT (Digital Enhanced Cordless Technology), GERAN
(GSM EDGE Radio Access Network) etc.
28. HSDPA(High-Speed Downlink Packet Access) an enhanced 3G (third generation) mobile
telephony communications protocol in the High-Speed Packet Access (HSPA) family,
telephony communications protocol in the High-Speed Packet Access (HSPA) family,
HSDPA improves system capacity and increases user data rates in the downlink
direction, that is, transmission from the Radio Access Network to the mobile
terminal.
29. EGPRS Enhanced Data rates for GSM Evolution (EDGE) (also known as
Enhanced GPRS (EGPRS), or IMT Single
Carrier (IMT-SC))
is a backward-compatible digital mobile
phone technology that allows improved data transmission rates, as an
extension on top of standard GSM. EDGE is considered a 3G
radio technology and is part of ITU's 3G
definition.[1] EDGE
was deployed on GSM networks beginning in 2003— initially by Cingular (now
AT&T) in the United States
Enhanced GPRS (EGPRS), or IMT Single
Carrier (IMT-SC))
is a backward-compatible digital mobile
phone technology that allows improved data transmission rates, as an
extension on top of standard GSM. EDGE is considered a 3G
radio technology and is part of ITU's 3G
definition.[1] EDGE
was deployed on GSM networks beginning in 2003— initially by Cingular (now
AT&T) in the United States
30. HSUPA High-Speed Uplink
Packet Access (HSUPA) is a 3G
mobile
telephony protocol in the HSPA family with up-link speeds up to 5.76
Mbit/s. The
name HSUPA was created by Nokia. The 3GPP does not support the name 'HSUPA', but instead uses the
name Enhanced
Uplink (EUL)
Packet Access (HSUPA) is a 3G
mobile
telephony protocol in the HSPA family with up-link speeds up to 5.76
Mbit/s. The
name HSUPA was created by Nokia. The 3GPP does not support the name 'HSUPA', but instead uses the
name Enhanced
Uplink (EUL)
31. NPI Number Plan Indiecator
32. Air Interface: 在移动电话中，“空中接口”表示基站和移动电话之间的无线传输规范。它定义每个无线信道的使用频率和带宽，或者定义采用的编码方法。
33. General packet radio service (GPRS) is a packet
oriented mobile data service available to users of the 2G cellular communication systems global system for mobile
communications (GSM), as well as in the 3G systems. In the 2G
systems, GPRS provides data rates of 56-114 kbit/s.
oriented mobile data service available to users of the 2G cellular communication systems global system for mobile
communications (GSM), as well as in the 3G systems. In the 2G
systems, GPRS provides data rates of 56-114 kbit/s.
34. High-speed circuit-switched data (HSCSD), is an enhancement to circuit-switched data
(CSD), the original data transmission mechanism of the GSM
mobile
phone system, four times faster than GSM, with data rates up to 38.4 kbit/s.
But actually on mobile the speed is less than 15kb/s
(CSD), the original data transmission mechanism of the GSM
mobile
phone system, four times faster than GSM, with data rates up to 38.4 kbit/s.
But actually on mobile the speed is less than 15kb/s
35. NITZ, or Network
Identity and Time Zone[1], is a
mechanism for provisioning local time and date, as well as network provider
identity information to mobile devices via a wireless network
Identity and Time Zone[1], is a
mechanism for provisioning local time and date, as well as network provider
identity information to mobile devices via a wireless network
36. Daylight saving time (DST;
also summer time
also summer time
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