25.331 3GPP PDF

ETSI TS V (). 1. 3GPP TS version Release Reference. RTS/TSGRvd Keywords. UMTS. Descriptor and Table of Contents (1 of 40) for 3GPP TS – Radio Resource Control (RRC) – Protocol specification. 3GPP TS V (). 2. Release Keywords. UMTS, radio. 3GPP. Postal address. 3GPP support office address. Route des Lucioles.

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Different operators have different configurations for the inactivity timers, which leads to differences in energy consumption. The terminal decodes AICH the preamble. The standard channel model includes rate-matching, but the sizes line up already, so rate-matching is a no-op. Message Formation and ASN. 3hpp Read Edit View history.

Radio Resource Control

The downlink power level is measured and the initial RACH power level is set with the proper margin due to the open-loop inaccuracy. Languages Deutsch 3ypp Edit links. The operation of the RRC is guided by a state machine which defines certain specific states that a UE may be present in.

The different states in this state machine have different amounts of radio resources associated with them and these are the resources that the UE may use when it is present in a 25331 specific state. The configuration of RRC inactivity timers in a W-CDMA network has considerable impact on the battery life of a phone when a packet data connection is open. This page was last edited on 22 Aprilat A 1 ms RACH preamble is sent with the selected signature.


All of the parameters are powers of 2, but the repeat periods can be set independently for each SIB type. The timing of the access slots and the acquisition indication is described 3gppp subclause 7.

Radio Resource Control – Wikipedia

The channel format and other details are outline in 3GPP Radio Transmission These chips are formed into QPSK symbols and prepared for transmission with the root-raised-cosine channel filter. This corresponds to a spreading factor of, 64, and 32 respectively for the message data part. The BCH transport block is always bits, including a header and data fields.

A 10 ms message part consists of one message part radio frame, while a 20 ms message part consists of two consecutive 10 ms message part radio frames. The simplest way to schedule the messages would be: N-1 with a repeat period of 8N, where N is a power of 2.

UMTS ASN1 RRC description

By using this site, you agree to the Terms of Use and Privacy Policy. You can get a “clean” copy of that ASN.

Type 18 — Neighbor identities. The control part consists of 8 known pilot bits to support channel estimation for coherent detection and 2 TFCI bits.

The UE can start the random-access transmission at the beginning of a number of well-defined time intervals, denoted access slots. This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November and incorporated under the “relicensing” terms of the GFDLversion 1. Each slot consists of two parts, a data part to which the RACH transport channel is mapped and a control part that carries Layer 1 control information.


This TTI length is configured by higher layers. The RRC idle mode no connection has the lowest energy consumption. This corresponds to a spreading factor of for the message control part.

3GPP Specification #: version – ASN.1 code –

More details are in 3GPP Message encoding is ASN. Furthermore, the signature is also selected randomly from among the available signatures indicated in SIB5. In this case, the scrambling code is thus not necessarily applied aligned with the frame boundary of the physical channel to be scrambled.

The UE selects the scrambling code number by adding the 3gpp number of the downlink primary scrambling code and the preamble scrambling code number from SIB5. These chips are formed into QPSK symbols and prepared for transmission with the root-raised-cosine channel filter. Time and reference position appear to by mandatory. The sequence 225.331 complex valued chips shall be scrambled complex chip-wise multiplication by a complex-valued scrambling code Sdl,n.

RACH transmissions from the user consists of two parts: Retrieved from ” https: The RACH procedures is as follows: The transitions to 3gp energy consuming states occur when inactivity timers trigger. The pilot bit pattern is described in table 8. As per 3GPP