LTE channel types Physical channels: These are transmission channels that carry user data and control messages. Logical channels: Provide services for the Medium Access Control (MAC) layer within the LTE protocol structure..
In respect to this, what is a physical channel?
Physical Channels A physical radio channel is a radio frequency or pair of frequencies that is allocated by the regulatory body to an agency for communication. Simply put, this means in direct radio to radio communication the same frequency may be used for reception and transmission.
Furthermore, what logical channels are carried by Pdcch and Pucch physical channels? Physical Control Channels
| Channel Name | Acronym | Downlink |
| Physical hybrid ARQ indicator channel | PHICH | X |
| Physical downlink control channel | PDCCH | X |
| Relay physical downlink control channel | R-PDCCH | X |
| Physical uplink control channel | PUCCH |
Similarly, you may ask, which data channels are used for physical layer?
Downlink physical channels:
- Physical Downlink Shared Channel (PDSCH) Carries the DL-SCH and PCH.
- Physical Downlink Control Channel (PDCCH)
- Physical HARQ Indicator Channel (PHICH)
- Physical Control Format Indicator Channel (PCFICH)
- Physical Broadcast Channel (PBCH)
What is logical channel group in LTE?
LCG(Logical Channel Group) With just a little modification of 3GPP description, LCG can be defined as "A group of Logical Channel which buffer status is being reported." There are four LCGs being used in LTE and each of the group has it's own ID from 0 to 3.
Related Question Answers
What is the difference between medium and channel?
A medium serves as the means of communication whereas a channel refers to the means of transmission of a message between the sender and the receiver. A sender conveys his/her message to the receiver by some medium (oral, written or non verbal) over some channel (electronic means or printed Media).What is Channel Modelling?
A channel model is an essential piece of a physical layer communication simulation. It is a mathematical representation of the effects of a communication channel through which wireless signals are propagated. These models can be used as a part of the design and simulation of your wireless communication systems.What are the 5 channels of communication?
Communication channels include face-to-face communication, broadcast media, mobile channels, electronic communication and written communication. - Face-to-Face or Personal Communication.
- Broadcast Media Communications.
- Mobile Communications Channels.
- Electronic Communications Channels.
- Written Methods of Communication.
What are the 3 channels of communication?
In any organization, three types of communication channels exist: formal, informal and unofficial. While the ideal communication web is a formal structure in which informal communication can take place, unofficial communication channels also exist in an organization.How are channels formed?
Natural channels are formed by fluvial process and are found across the Earth. These are mostly formed by flowing water from the hydrological cycle, though can also be formed by other fluids such as flowing lava can form lava channels. Stream channel development is controlled by both water and sediment movement.What is Pcfich LTE?
PCFICH (LTE) PCFICHPhysical Control Format Indicator Channel is the Physical Control Format Indicator Channel and specifies how many OFDM. OFDM is an alternative tranmission scheme to DSSS and FHSS. symbols at the beginning of a subframe contain PDCCHPhysical Downlink Control Channel.What is the difference between channel and frequency?
A channel—at least in the context of analog radio systems—refers to a range of frequencies. A frequency is the number of times per second that a radio signal oscillates. 1 MHz, for instance, means one million complete cycles per second. This is a frequency at the center of the AM broadcast band.What are logical channels?
Logical Channel. A logical channel is defined by the type of information it carries and is generally classified as a control channel, used for transmission of control and configuration information necessary for operating an LTE system, or as a traffic channel, used for the user data.What are logical transport and physical channels?
Physical channels: These are transmission channels that carry user data and control messages. Logical channels: Provide services for the Medium Access Control (MAC) layer within the LTE protocol structure.What is LTE protocol stack?
The protocol stack functions consist of the Medium Access Control (MAC), Radio Link Control (RLC), Packet Data Convergence Protocol (PDCP), and Radio Resource Control (RRC). LTE is the latest generation of the 3GPP standards. The LTE standard specifies an IP-only network supporting data rates up to 150 Mbps.What is Pdsch?
PDSCH is a physical channel that carries user data. Carries user specific data (DL Payload). Carries Random Access Response Message in case of PDSCH mapped to RACH channel. It is using AMC with QPSK, 16 QAM and 64 QAM.Which protocol is responsible for encryption of user plane data?
The protocol for the user plane includes Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), Medium Access Control (MAC), and the PHY protocol. The control plane stack additionally includes the radio resource control (RRC) and non-access stratum (NAS).What is RRC protocol?
The Radio Resource Control (RRC) protocol is used in UMTS and LTE on the Air interface. It is a layer that exists between UE and eNB and exists at the IP level. The operation of the RRC is guided by a state machine which defines certain specific states that a UE may be present in.What is HARQ process in LTE?
HARQ stands for Hybrid Automatic Repeat Request. HARQ = ARQ + FEC (Forward Error Correction)/Soft Combining. ARQ refers to Automatic Repeat Request i.e. if sender doesn't receive Acknowledgement (ACK) before timeout, the receiver discards the bad packet and sender shall re-transmits the packet.What is LTE architecture?
A standard LTE system architecture consists of an Evolved UMTS Terrestrial Radio Access Network, more commonly known as E-UTRAN, and the System Architecture Evolution, also known as SAE. SAE's main component is the Evolved Packet Core, also known as an EPC.What is paging in LTE?
Paging is a generic term and it's also used in LTE, so I thought about writing a small but not detailed article on Paging, it's uses and how physical layer is involved in Paging process. Paging is mostly a RRC procedure and it simply means waking up the UE which is Idle, if there is some data for it.What is resource block in LTE?
A resource block (RB ) is the smallest unit of resources that can be allocated to a user. The resource block is 180 kHz. In frequency, resource blocks are either 12 x 15 kHz subcarriers or 24 x 7.5 kHz subcarriers wide The number of subcarriers used per resource block for most channels and signals is 12 subcarriers.What is LTE SIB?
LTE System Information: Part 1. It consists of the Master Information Block (MIB) and a number of System Information Blocks (SIBs). The MIB is broadcast on the Physical Broadcast Channel (PBCH), while SIBs are sent on the Physical Downlink Shared Channel (PDSCH) through Radio Resource Control (RRC) messages.Which interface is responsible for packet forwarding at handovers?
The X2-U is responsible for the transport of user data packets between eNBs. This interface is only used for a limited period of time, when the terminal moves from the coverage area of one eNB to another and provides buffered packet data forwarding. 
