Terminology » LTE » LTE PMCH (Physical Multicast Channel) Explained

LTE PMCH (Physical Multicast Channel) Explained

lte

pmch

multicast

mbms

physical channel

This page describes the PMCH, or Physical Multicast Channel, within the context of the LTE system. This channel defines the physical layer structure responsible for carrying Multimedia Broadcast and Multicast Services (MBMS).

This control channel occupies the first 1, 2, or 3 OFDM symbols in a subframe, extending across the entire system bandwidth. QPSK, 16QAM, and 64QAM modulations are used for the PMCH channel. The PMCH carries the MCH.

Multicast Channel (MCH) Characteristics

The Multicast Channel (MCH) is characterized by the following:

Requirement to be broadcast across the entire coverage area of the cell.
Support for MBSFN combining of MBMS transmissions across multiple cells.
Support for semi-static resource allocation, for example, with a time frame of a long cyclic prefix.

In the Downlink (DL), the MTCH logical channel can be mapped to both the DL-SCH and MCH transport channels.

LTE Vendors

LTE Routers
LTE Smartphones
LTE Femtocells
LTE Tablets
LTE Dongles
LTE RF Test Equipment
LTE Protocol Test Equipment

Apple Watch Series 3: Features and Cellular Connectivity

Explore the Apple Watch Series 3 features, focusing on its cellular capabilities and benefits of LTE network connectivity.

apple watch

cellular connectivity

smartwatch

AT&T Expands LTE Coverage to Over 400 Markets

AT&T announces its LTE network now covers approximately 240 million customers across 400 markets, highlighting its investment in fast, reliable wireless service.

lte

wireless technology

att

Anritsu Enhances LTE Simulator with TD-LTE Carrier Aggregation

Anritsu updates its LTE network simulator to support TD-LTE carrier aggregation, enabling downlink throughput up to 300Mbps. Support for both FDD and TD-LTE is available.

lte

carrier aggregation

test measurement

Anritsu Expands PIM Master with LTE Frequency Options

Anritsu introduces new frequency options for its PIM Master, enabling LTE 800 MHz, UMTS 2100 MHz, and LTE 2600 MHz band testing, ideal for LTE network deployment and maintenance.

cellular telecom

lte

test measurement

Ericsson M7400 and M7450 Multimode Modems (2014)

Overview of the Ericsson M7400 and M7450 multimode modems, supporting LTE, HSPA+, EDGE, and other wireless technologies, found in tablets, smartphones, and wireless networking devices.