The 3rd Generation Partnership Project (3GPP) is a collaboration between groups of telecommunication associations, to make a globally applicable third generation 3G mobile phone system specification within the scope of the International Mobile Telecommunication-2000 project of the International Telecommunication Union (ITU). 3GPP specifications are based on evolved Global Systel for Mobile Communication (GSM) specifications. 3GPP … Read more
Broadcast Channels (BCH) Frequency correction channel (FCCH) the “lighthouse” of a BTS Synchronization channel (SCH) PLMN/base identifier of a BTS plus synchronization information (frame number) Broadcast control channel (BCCH) to transmit system information 1-4, 7-8 (differs in GSM 900, GSM 1800, and PCS 1900) CBCH and CCCH CBCH (Cell Broadcast Channel) transmits cell broadcast messages … Read more
Basic Function of Uplink & Downlink Transport Channel in LTE Uplink Transport Channel: Purpose: Facilitates the transmission of user data from the User Equipment (UE) to the eNodeB (base station). Channels: Includes the Physical Uplink Shared Channel (PUSCH) for user data and the Physical Uplink Control Channel (PUCCH) for control information. Data Transmission: Carries information … Read more
Below types of information carries By Logical Channel in LTE Control Channels Broadcast Control Channel (BCCH) :used for transmission of system information from the network to all UEs in a cell. Paging Control Channel (PCCH) :used for paging of UEs whose location on cell level is not known to the network. Common Control Channel (CCCH) … Read more
EPS Bearer Terminology in LTE This article breaks down key concepts, including Quality of Service, GBR (Guaranteed Bit Rate) Bearers, Non-GBR Bearers, and crucial parameters like QoS Class Identifier (QCI) and Allocation and Retention Priority (ARP). Quality of service GBR bearer: Guaranteed bit rate Non-GBR bearer: No guaranteed bit rate Establishment time Default bearer Established … Read more
Inter-cell interference coordination (ICIC) in LTE To aid downlink ICIC Relative narrowband transmission-power indicator A cell can provide this information to neighboring cells, indicating the part of the bandwidth where it intends to limit the transmission power. A cell receiving the indication can schedule its downlink transmissions within this band, reducing the output power or completely … Read more
BENEFITS OF MULTI-ANTENNA TECHNIQUES IN LTE The availability of multiple antennas at the transmitter and/or the receiver can be utilized in different ways to achieve different aims: Multiple antennas at the transmitter and/or the receiver can be used to provide additional diversity against fading on the radio channel. In this case, the channels experienced by … Read more
T-Mobile USA has announced a deal to swap blocks of radio spectrum with Verizon Wireless in 218 markets across the country. T-Mobile said the purchase will improve its spectrum position in 15 of the top 25 markets in the USA. The deal would be dependent on forthcoming Verizon spectrum purchases, currently being scrutinized by the … Read more
The MAC layer is oriented to the connections. Each connection corresponds to a service flow. The service flow defines the QoS parameters of PDU transmitted over the connection. The design core of the MAC protocol is the concept of service flow architecture on the connection. The service flow provides an uplink/downlink QoS management mechanism. An … Read more
Sub-Carrier Allocation Mode 1 DL PUSC – Downlink partial Usage Sub-Channels The downlink PUSC replacement zone is unique, that must exist in the frame structure specified by the protocols. DL PUSC with all SC – PUSC with all sc indicates the PUSC replacement mode when all the bandwidth resources are used. DL FUSC- Downlink Full … Read more