How Common Control Channel (CCCH) works in GSM ?

RACH(Random Access Channel) Uplink only. Used by the MS when making its first access to the Network. The reason for access could be initiation of a call or a page...
Article Topics :

access, AGCH, ccch, CHANNEL, common channel, downlink, gsm, lte, ms, network, rach, random, uplink, what is common control channel

What is Work of Paging Channel in CDMA?

The paging channel transmits: System parameters message Access parameters Neighbors list CDMA channels list message The paging channel accomplishes: Paging to MS Assign traffic channel to MS The frame length...
Article Topics :

active, cdma, CHANNEL, forward, handoff, lai, neighbor, PAGING, pilot, reverse, search window, sim

How Sync Channel work in CDMA?

A long code is used for scrambling. However, a long code has too long a period, which cannot be wholly used for scrambling. We can only sample some chips of...
Article Topics :

active, cdma, cdma2k long code state sync message lc_state, CHANNEL, forward, handoff, lai, neighbor, PAGING, pilot, pn, reverse, search window, sim

What is Basic work of Pilot Channel in CDMA?

A pilot channel: Assist mobile station to be connected with CDMA network Handles multi-path searching Provide the phase reference for coherent demodulation and help the mobile station estimate the transmission...
Article Topics :

active, cdma, CHANNEL, forward, handoff, lai, neighbor, PAGING, pilot, reverse, search window, sim

Transmit Diversity of CDMA

Diversity technology means that after receiving two or more input signals with mutually uncorrelated fading at the same time, the system demodulates these signals and adds them up. Thus, the...
Article Topics :

active, cdma, CHANNEL, forward, handoff, interleaving, lai, neighbor, PAGING, pilot, rake, reverse, search window, sim

What is T_ADD,T_DROP and T_TDROP in CDMA?

Pilot Detection Threshold (T_ADD) Any Pilot that is strong but is not in the Handoff Direction Message is a source of interference. This Pilot should be immediately moved into the...
Article Topics :

active, cdma, CHANNEL, forward, handoff, lai, neighbor, PAGING, pilot, pn, reverse, search window, sim

LTE Downlink Logical Channel

Paging Control Channel(PCCH) A downlink channel that transfers paging information and system information change notifications. This channel isused for paging when the network does not know the location cell of...
Article Topics :

BCCH, ccch, cell, dcch, downlink, enodeb, logical channel, lte, lte downlink logical channels, mcch, power control, telecom, uplink

List of Uplink and Downlink Physical Channel of WCDMA

Downlink Physical Channel of WCDMA Downlink Dedicated Physical Channel: Downlink DPCH Downlink Common Physical Channel: Common Control Physical Channel (CCPCH) Synchronization Channel ( SCH) Paging Indicator Channel (PICH) Acquisition Indicator...
Article Topics :

ccpch, cdma, cpich, downlink, physical lte, pusc w/ all sc, scch, SCH, telecom, uplink

Basic Work of WCDMA Physical Channel

A physical channel is defined by a specific carrier frequency, code (scrambling code, spreading code) and relative phase. In UMTS system, the different code (scrambling code or spreading code) can distinguish the...
Article Topics :

cdma, CHANNEL, code, physical, scrambling, telecom, time slot, ul

Terminal Transmitting and Receiving Process in Wimax

Transmitting:  The process is similar to that of BS. The frequency offset is pre-corrected. The Ranging and BW Request are generated at the physical layer and a code is selected...
Article Topics :

mac layer, modulation, physical layer, ranging, telecom, transmitting, Wimax

BS Transmitting and Receiving Process in Wimax.

Transmitting:  After being processed at the MAC layer, the downlink data is sent to the physical layer inthe format of MAC PDU. The MAC PDU arranges the data block size...
Article Topics :

coding, downlink data, fdma, mac, modulation, ofdma, pdu, physical, radio resource, telecom, uplink

What is NAP & NSP in Wimax ? How it Works ?

NAP: Network Access Provider NSP: Network Service Provider V-NSP: Visited NSP H-NSP: Home NSP NAP provides the operation entities of network facilities required by the WiMAX wireless access for one...
Article Topics :

ip connection, network access provider, nsp nap, telecom, what is the nap and nsp, Wimax, wimax wireless access

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