Answer Posted / sambit routray
WHEN THE MOBILE CHANGES ITS STATE FROM URA IDEAL MODE TO URA
CONNECTED MODE. RRC HAS FOUR STATES IN UTRAN.
1.CELL_DCH STATE
2.CELL_FACH STATE
3.CELL_PCH STSTE
4.URA_PCH STATE
THESE ARE MAINLY COMMON TRANSPORT CHANNEL TYPE SWITGHING,
DONE BY MAC, BUT UNDER THE SUPERVISION OF RRC.
CELL_FACH: IN THIS STATE UE IS KNOW ON CELL LEVEL AND UE
USES FACH TRANSPORT CHANNEL TO SEND DCCH AND CCCH INFO.
CELL_FACH IS THE ONLY STATE THAT CAN BE ENTERED FROM STATES
WITHOUT RESOURCES LIKE FROM IDEAL MODE, CELL_PCH, URA_PCH.
CELL_DCH; in this state ue is known on the cell level and
uses the dch transport channel. this state can entered from
cell_fach, cell_pch, ura_pch by setting up a dedicated channel.
CELL_PCH: IN THIS STATE UE IS ALSO KNOWN ON CELL LEVEL BUT
NO RESOURCES ARE USED BY THE UE. THE UE ONLY LISTEN TO
SYSTEM INFO. AND PAGGING INFO.IN THIS STATE THE RRC
CONNECTION IS MAINTAINED BUT TO EXANGE MSG BETWEEN UE AND
UTRAN A PAGGING AND A FOLLOWING TRANSITION CELL_FACH IS
REQUIRED.
URA_PCH: IN THIS STATE THE UTRAN KNOWS UE ON THE UTRA LEVEL.
THESE STATE TRANSITION ARE ONLY BASED UPON THE AMOUNT OF
DATA FLOW.
Is This Answer Correct ? | 19 Yes | 5 No |
Post New Answer View All Answers
What is netstat?
What is IP addresses, Netmasks and Subnets?
Explain what's the purpose of gsm device and what is gprs?
What is traceroute?
What are the different Types of Polling in RLC A.M Mode
Which signaling protocols can be used for integration between CUCM and CUC?
Which transport layer protocols are used for VoIP audio and video payload?
Explain crankback?
How to Add Static Routes?
In gsm we use msrn for routing but what parameter is used in the cdma for routing?
Explain snmp protocol?
How is snmp work with nms and ems?
Hi Iam doing a Manualtesting job in small company and my educational background is MCA i want to learn TELECOM PROTOCOL TESTING " please give any suggestion how is my carrier in IT filed and job opportunity cnances.is am i eligible for Protocol testing ?
What is the purpose of gsm device and what is gprs?
What is ifconfig?