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. The UE selects the scrambling code number by adding the code number of the downlink primary scrambling code and the preamble scrambling code number from SIB5. The fact that SIBs can span multiple transport frames, or be combined into shared transport frames, further complicates the set of scheduling possibilities. Click here to sign up. The RRC idle mode no connection has the lowest energy consumption. OSI model by layer 7. This symbol sequence is divided into 15 slots of symbols each.
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In this case, the scrambling code is thus not necessarily applied aligned with the frame boundary of the physical channel to be scrambled. The best place to see this laid out in a clear way is in 3GPP The major functions of the RRC protocol g3pp connection establishment and release functions, broadcast of system information, radio bearer Type 12 — Measurement control information for connected mode, if different from SIB Retrieved 10 April The standard channel model includes rate-matching, but the sizes line up already, so rate-matching is a no-op.
The RRC idle mode no connection has the lowest energy consumption. All of the parameters are powers of 2, but the repeat periods can be set independently for each SIB type. Type 15 — GPS aiding information. From Wikipedia, the free encyclopedia. The downlink power level is measured and the initial RACH power level is set with the proper margin due to the open-loop inaccuracy.
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By using this site, you agree to the Terms of Use and Privacy Policy. Help Center Find new research papers 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 given specific state.
Furthermore, the signature is also selected randomly from among the available ppdf indicated in SIB5.
25.331 Read Edit View history. The terminal randomly selects one of the RACH sub-channels from the group its access class allows it to use.
Radio Resource Control
It interfaces with phones, data cards, scanners, and other measurement devices; it collects data and records it in logfiles.
The fact that SIBs can span multiple transport frames, or be combined into shared transport frames, further complicates the set of scheduling possibilities. The data and control parts are transmitted in parallel.
This page was last edited on 27 Augustat Location Update The location updating procedure is a general procedure which is used for the following purposes 3GPP These chips are formed into QPSK symbols and prepared 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 pd mobility procedures, paging notification and release and outer loop power control.
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Radio Resource Control - Wikipedia
Different operators have different configurations for the inactivity timers, which leads to differences in energy consumption. The transitions to lower energy consuming states occur when inactivity timers trigger. 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.
The transitions to lower 3gpp consuming states occur when inactivity timers trigger. In case of other downlink channels, the scrambling code shall be applied aligned with the scrambling code applied to the P-CCPCH.
TS ( p.) – UTRA: RRC Protocol specification
The configuration of RRC inactivity timers in a W-CDMA network has considerable impact on the ;df life of a phone when a packet data connection is open. Different operators have different configurations for the inactivity timers, which leads to differences in energy consumption.
This symbol sequence is divided into 15 slots of symbols each. The configuration of RRC inactivity timers in a W-CDMA network has considerable impact on the battery life of a phone when prf packet data connection is open. The channel bits are interleaved, split into 2 bit radio frames and interleaved again. The UE can start the random-access transmission at the beginning of a number of well-defined time intervals, denoted access slots.
Routing Area Update procedure This message is sent by the MS to 3gppp network to request an update of its location. Skip to main content.
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