What is RRC in UMTS?
The Radio Resource Control (RRC) protocol is used in UMTS, LTE and 5G on the Air interface. It is a layer 3 (Network Layer) protocol used between UE and Base Station. This protocol is specified by 3GPP in TS 25.331 for UMTS, in TS 36.331 for LTE and in TS 38.331 for 5G New Radio.
What is RRC connection setup?
The RRC CONNECTION SETUP message is used to establish SRB1. It contains configuration information for SRB1. This allows subsequent signaling to use the DCCH logical channel. The configuration for SRB1 can be a specific configuration or the default configuration.
What is RRC establishment cause?
The RRC-Establishment-Cause IE indicates to the MME the reason for RRC Connection Establishment.
What is RRC connection establishment in LTE?
RRC CONNECTION REQUEST message is used to request the E-UTRAN for the establishment of an RRC connection. It is sent as part of the Random Access procedure. It is transferred using SRB0 on the Common Control Channel (CCCH) because neither SRB1 nor a Dedicated Control Channel (DCCH) has been setup at this point.
Why is RRC connection needed?
RRC Connection Establishment procedure lets user inform network what it wants to do- attach, tracking area update, service request etc. It is used to make transition from RRC IDLE mode to RRC CONNECTED mode.
What is the main purpose of RRC?
The RRC protocol performs the following functions: broadcasting information system, control of the connection, control of the radio bearer, control of handover, transfer of measurement reports.
What is the goal of RRC?
GOAL OF RRC To make HIV/AIDS free INDIA by creating awareness about the spread and cause of HIV/AIDS among the student youth, non-student youth and public.
What is meant by RRC?
Railway Recruitment Board (RRB) vs Railway Recruitment Cell (RRC) The Railway Recruitment Board (RRB) handles the recruitment of Group C and the Railway Recruitment Cell (RRC) handles the recruitment of Group D posts. The exams conducted by both RRB and RRC are for candidates recruitment under the Government of India.
What are the two modes of RRC?
6.1 General. An overall picture of the transitions between RR modes of operation and RRC states and modes is in Figure 6.1. 1. The RRC modes are RRC-Idle mode and RRC-Connected mode.
What does RRC stand for?
RRC
| Acronym | Definition |
|---|---|
| RRC | Requirements Review Committee |
| RRC | Recruitment and Retention Center |
| RRC | Reconnaissance Review Conference (USACE) |
| RRC | Regional Reporting Center |
What is UMTS signal?
UMTS (Universal Mobile Telecommunications Service) is a third-generation (3G) broadband, packet-based transmission of text, digitized voice, video, and multimedia at data rates up to 2 megabits per second (Mbps). Users will have access through a combination of terrestrial wireless and satellite transmissions.
How often does UMTS send RRC Connection Request message?
The value of T300 is broadcast within SIB 2. UMTS uses T300 in combination with N300 to manage re-transmissions of the RRC Connection Request message. LTE does not have an N300 parameter and the RRC Connection Request message is sent only once per establishment procedure.
How does RRC Connection establishment work in LTE?
The network triggers the RRC connection establishment procedure by sending a Paging message. This could be used to allow the delivery of an incoming SMS or notification of an incoming voice call RRC connection establishment for LTE is relatively simple compared to RRC connection establishment for UMTS.
When does the UE trigger RRC Connection establishment?
For example, the UE triggers RRC connection establishment if the end-user starts an application to browse the internet, or to send an email. Similarly, the UE triggers RRC connection establishment if the UE moves into a new Tracking Area and has to complete the Tracking Area Update signalling procedure.
How is the establishment cause of a RRC request determined?
The establishment cause within the RRC Connection Request message is determined by the Non-Access Stratum (NAS) procedure for which the connection is being established. The relationship between establishment cause and NAS procedure is specified by 3GPP TS 24.301.