| CA |
Carrier
Aggregation |
| CA |
Certification
Authority |
| CAC |
Call Admission Control |
| CAC |
Connection
Admission Control |
| CACLR |
Cumulative
ACLR |
| CAG |
Common
Agreement Group |
| CAGR |
Compound
Annual Growth Rate |
| CAMEL |
Customised
Applications for Mobile networks Enhanced Logic |
| CAP |
CAMEL
Application Part |
| CAPEX |
Capital
Expenses / Expenditures |
| CAT_TP |
Card
Application Toolkit Transport Protocol |
| CAZAC |
Constant
Amplitude Zero Auto-correlation (Codes) |
| CB |
Circular Buffer |
| CB |
Code
Block |
| CB |
Cooperative
/ Coordinated Beamforming |
| CBC |
Cell
Broadcast Center |
| CBE |
Cell
Broadcast Entity |
| CBF |
Coordinated
Beam Forming |
| CBR |
Constant
Bit Rate |
| CBS |
Cell
Broadcast Service |
| CBS |
Committed
Burst Size |
| CBS |
Coordinated
Beam Switching |
| CC |
Call
Control |
| CC |
Chase
Combining |
| CC |
Component
Carrier |
| CC |
Content
of Communication |
| CC |
Convolutional
Coding (coding type) |
| CCCH |
Common
Control Channel |
| CCDF |
Complementary
Cumulative Distribution Function |
| CCE |
Control
Channel Elements |
| CCF |
CDMA
Certification Forum |
| CCN |
Cell
Change Notification |
| CCO |
Cell
Change Order |
| CCO |
Coverage
and Capacity Optimization |
| CCPCH |
Common
Control Physical Channel |
| CCS |
Channelization
Code Set |
| CCSA |
China
Communications Standards Association |
| CCTrCH |
Coded
Composite Transport Channel |
| CD/CA-ICH |
CPCH
Collision Detection/Channel Assignment Indicator Channel |
| CDD |
Cyclic
Delay Diversity |
| CDF |
Charging
Data Function |
| CDF |
Cumulative
Density Function |
| CDF |
Cumulative
/ Continuous Distribution Function |
| CDL |
Clustered Delay Line |
| CDM |
Code
Division Multiplexing |
| CDMA |
Code
Division Multiple Access |
| CDMA2000 |
3rd
generation Code Division Multiple Access |
| CDN |
Content
Distribution Network |
| CDN |
Coupling/Decoupling Network |
| CDO |
Care
Delivery Organization |
| CDR |
Call
Detail Record |
| CDR |
Call
Drop Rate |
| CDR |
Charging
Data Record |
| CE |
Congestion
Experienced |
| CE |
Cyclic
Extension |
| CELL_DCH |
UTRAN
RRC state where UE has dedicated resources |
| CELL_FACH |
UTRAN
RRC transition state between Cell_PCH and Cell_DCH |
| CELL_PCH |
UTRAN
RRC state where UE has no dedicated resources are allocated |
| CEO |
Chief
Executive Officer |
| CET |
Carrier
Ethernet Transport |
| CF |
Contention-Free |
| CFB |
Call
Forwarding Busy |
| CFI |
Channel
Format Indicator |
| CFI |
Control
Format Indicator |
| CFN |
Connection
Frame Number |
| CFNRc |
Call
Forwarding Not Reachable |
| CFNRy |
Call
Forwarding No Reply |
| CFO |
Carrier
Frequency Offset |
| CFR |
Crest
Factor Reduction |
| CFU |
Call
Forwarding Unconditional |
| CGF |
Charging
Gateway Function |
| CGI |
Cell
Global Identification / Identity |
| CGID |
Cell
Global Cell Identity |
| CGN |
Charging
Gateway Node |
| CHAP |
Challenge Handshake Authentication Protocol |
| ChCd |
Channelisation
Code |
| CI |
Codebook
Index |
| C/I |
Carrier
to Interference / Intermodulation Ratio |
| c-ID |
Cell
Identity (NBAP ASN.1) |
| CID |
Cell
Identity / Identification |
| CID |
Cell
Identifier (AAL2) |
| CID |
Context IDentifier |
| CIF |
Carrier
Indication / Information Field |
| CINR |
Carrier
to Interference Plus Noise Ratio |
| CIR |
Carrier
to Interference Ratio |
| CIR |
Channel
Impulse Response |
| CIR |
Committed
Information Rate |
| CK |
Ciphering
Key |
| CK/IK |
Ciphering
Key/Integrity Key |
| CKSN |
Ciphering Key Sequence Number |
| CL |
Circular
Letter |
| CL |
Closed
Loop |
| CL-DFTS-OFDM |
Clustered
DFT-Spread OFDM |
| CLF |
Campaign
Loader Files |
| CLI |
Command
Line Interface |
| CLIP |
Calling
Line Presentation |
| CLIR |
Calling
Line identity Restriction |
| CLM |
Closed
Loop Mode |
| CL-MIMO |
Closed-Loop
Multiple-Input Multiple-Output |
| CL-SM |
Closed-loop
Spatial Multiplexing |
| CLTD |
Closed
Loop Transmit Diversity |
| CM |
Connection
Management |
| CM |
Cubic
Metric |
| CMAS |
Commercial
Mobile Alert System / Service |
| CMC |
Connection Mobility Control |
| CMHH |
Constant Modulus Householder |
| CMOS |
Complementary
Metal Oxide Semiconductor |
| CMP |
Certificate
Management Protocol |
| CMS |
Communication
and Media Solutions |
| CMSAAC |
FCC
Commercial Mobile Service Alert Advisory Committee |
| CMSP |
Commercial
Mobile Service Provider |
| CN |
Core
Network |
| CoA |
Care
of Address |
| COFDM |
Coded Orthogonal Frequency Division Multiplexing |
| COLP |
Connected
Line Presentation |
| COLR |
Connected
Line identity Restriction |
| CoMP |
Coordinated
MultiPoint |
| CoMP |
Coordinated
Multiple Point Transmission (and Reception) |
| CORBA |
Common
Object Request Broker Architecture |
| COST |
European
Cooperation in Science and Technology |
| CP |
Control
Plane |
| CP |
Cyclic
Prefix |
| CPC |
Continuous
Packet Connectivity |
| CPCH |
Common
Packet Channel |
| CPE |
Common
Phase Error |
| CPE |
Customer
premise Equipment |
| CPICH |
Common
Pilot Channel |
| CPICH Ec/No |
Common PIlot CHannel (CPICH) Ec/No |
| C-Plane |
Control
Plane |
| CPM |
Converged
IP Messaging |
| CPRI |
Common
Public Radio Interface |
| CPT |
Control
PDU Type |
| CPU |
Central
Processing Unit |
| CQI |
Channel
Quality Indicator / Indications |
| CR |
Carriage
Return |
| CR |
Change
Request |
| CRC |
Cyclic
Redundancy Check |
| CREF |
Connection
Refused (SCCP) |
| CRM |
Customer
Relationship Management |
| CRNC |
Controlling
RNC |
| C-RNTI |
Cell
Radio Network Temporary Identity / Identifier |
| CRS |
Common
Reference Signals |
| CRS |
Cell-specific
Reference Symbol |
| CS |
Circuit
Switched |
| CS |
Convergence
Sublayer |
| CS |
Coordinated
Scheduling |
| CS-1/2 |
Capability
set 1/2 (INAP) |
| CS/CB |
Coordinated
Scheduling and Cooperative Beamforming |
| CSCF |
Call
Session Control Function |
| CSFB |
Circuit
Switched Fallback |
| CSG |
Closed
Subscriber Group |
| CSI |
Channel
State Information |
| CSI |
Camera
Serial Interface |
| CSICH |
CPCH
Status Indicator Channel |
| CS-iRAT-HO |
Circuit
Switched inter-RAT HandOver |
| CSI-RS |
Channel
State Information – Reference Signal |
| CSIT |
Channel
State Information at the eNB Transmitter |
| CSP |
Communication
Service Provider |
| CSS3 |
Cascading
Style Sheets 3 |
| CT |
Core
Network and Terminals (TSG) |
| CTCH |
Common
Traffic Channel |
| CTF |
Channel Transfer Function |
| CTF |
Charging
Trigger Function |
| CT/Fi |
Call
Trace/Filter (application) |
| CTIA |
Cellular
Telecommunication Industry Association |
| CTL |
Control |
| CTM |
Cellular
Text Telephony Modem |
| CTR |
Click-Through
Rate |
| CTrCH |
Common
Transport Channel |
| CW |
Code
Word |
| CW |
Continuous
Wave |
| CWDM |
Coarse
Wavelength Division Multiplexing |
| CWTS |
China
Wireless Telecommunication Standard |
RadioCom
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