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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All elements are optional. The purpose of this procedure is to establish the appropriate uplink power level for the UE, since CDMA is exquisitely sensitive to variations in relative received power. Views Read Edit View history.

The fact that SIBs can span multiple transport frames, or be combined into shared transport frames, further complicates the set of scheduling possibilities. Type 15 — GPS aiding information. Type 13 — ANSI system information.

UMTS ASN1 RRC description

List of mobile phone generations. The simplest way to schedule the messages would be: The TFCI of a radio frame indicates the transport format of the RACH transport channel mapped to the simultaneously transmitted message part radio frame. The data and control parts are transmitted in parallel. The sequence of complex valued chips shall be scrambled complex chip-wise multiplication by a complex-valued scrambling code Sdl,n. The set of available signatures is indicated by the SIB5 message, and the UE uses the ASC to determine the subset of that set and access slot to use.

In case of other downlink channels, the scrambling code shall be applied aligned with the scrambling code applied to the P-CCPCH.

UMTS Radio Resource Control

Type 14 — PHY information. The control part consists of 8 known pilot bits to support channel estimation for coherent detection and 2 TFCI bits. From Wikipedia, the free encyclopedia.

N-1 with a repeat 3gpl of 8N, where N is a power of 2. The transitions to lower energy consuming states occur when inactivity timers trigger. This corresponds to a spreading factor of for the message control part.


Note these comments on the alignment of the scrambling code, from 3GPP More details are in 3GPP The UE selects the scrambling code number by adding the code number of the downlink primary scrambling 25.31 and the preamble scrambling code number from SIB5. The BCH transport block is always bits, including a header and data fields. 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 given specific state.

Typically the RACH preamble detection and AICH response is done solely in the physical layer since there is no information or handling needed from the higher layers. Download in other formats: As per 3GPP 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.

RACH transmissions from the user consists of two parts: By using this site, you agree to the Terms of Use and Privacy Policy.

All of the parameters are powers of 2, but the repeat periods can be set independently for each SIB type. In this case, the scrambling code is thus not necessarily applied aligned with the frame boundary of the physical channel to be scrambled.

Type 3 — Cell identity and reselect information, similar to GSM cell selection parameters Type 4 — Cell reselect parameters for connected mode, if different from those in SIB3. The same scrambling code is used for the message part, but with a code offset. These chips are formed into QPSK symbols and 25.31 for transmission with the root-raised-cosine channel filter. The major functions of the RRC protocol include connection establishment and release functions, broadcast of system information, radio bearer establishment, reconfiguration and release, RRC connection mobility procedures, paging notification and release and outer loop power control.


OSI model by layer 7.

– /ftp/Specs/archive/25_series//

Different 3gp have different configurations for the inactivity timers, which leads to differences in energy consumption. Information on what access slots are 3g;p for random-access transmission is given by higher layers.

The channel bits are interleaved, split into 2 bit radio frames and interleaved again. Retrieved 10 April Powered by Trac 0. Radio Transmission These chips are formed into QPSK symbols and prepared for transmission with the root-raised-cosine channel filter. The pilot bit pattern is described in table 8. Retrieved from ” https: 25.313 can get a “clean” copy of that ASN.

Furthermore, the 25.3331 is also selected randomly from among the available signatures indicated in SIB5. 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 downlink power level is measured and the initial RACH power level is set with the proper margin due to the open-loop inaccuracy. Message Formation and ASN. A 1 ms RACH preamble is sent with the selected signature. The RACH procedures is as follows: The terminal decodes AICH the preamble.

The RRC idle mode no connection has the lowest energy consumption. That information is very useful for understanding the actual meanings of some of the elements they contain.

There are a maximum of 2.5331 available signatures. The operation of the RRC is guided by a state machine which defines certain specific states that a UE may be present in.