What is logical channel prioritization in LTE?

The prioritization of the uplink assignments is used to determine the order in which the individual transport blocks corresponding to the uplink assignments are filled, respectively how the data of different logical channels is multiplexed to the transport blocks for transmission in the uplink.

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What is logical channel prioritization in LTE?

What is logical channel in LTE?

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.

How many logical channels are there in LTE?

1.2 Logical Traffic Channels: Dedicated Traffic Channel (DTCH) – used for dedicated traffic for a particular UE. Multicast Traffic Channel (MTCH) – used to transmit Multicast data.

What is LTE control channel?

Control channels: these LTE control channels carry the control plane information: Broadcast Control Channel (BCCH) : This control channel provides system information to all mobile terminals connected to the eNodeB.

What are the different types of logical channels?

There are three types of logical channels: traffic channels (TCHs), control channels (CCHs), and the cell broadcast channel (CBCH). The traffic channels are used to transmit user information (speech or data). The control channels are used to transmit control and signaling information.

What is the difference between a physical channel and logical channel?

In GSM, these channels are separated into physical channels and logical channels. The Physical channels are determined by the timeslot, whereas the logical channels are determined by the information carried within the physical channel.

What is the difference between traffic channel and control channel?

The traffic channels are used to transmit user information (speech or data). The control channels are used to transmit control and signaling information.

What are the different types of channels in GSM?

There are two main types of GSM channels viz. physical channel and logical channel. Physical channel is specified by specific time slot/carrier frequency.

What is Telecom channel?

1) In telecommunications in general, a channel is a separate path through which signals can flow. 2) In the public switched telephone network (PSTN), a channel is one of multiple transmission paths within a single link between network points.

What is difference between physical channel and logical channel?

The Physical channels are determined by the timeslot, whereas the logical channels are determined by the information carried within the physical channel. It can be further summarised by saying that several recurring timeslots on a carrier constitute a physical channel.

Why are so many logical channels used in GSM?

GSM needs to transmit a large amount of signalling information apart from the payload data. These different types of data are transmitted via several logical channels. The name stems from the fact that each of the data types is transmitted on specific timeslots that are parts of physical channels.

What are LTE logical channels?

LTE logical channels structure and mapping between logical channels and transport channels. Logical channels reside between RLC sublayer and MAC sublayer which are layer 2 protocols in LTE protocol stack. Logical channels tells what kind of information is transferred. Logical channels can be broadly divided into two types:

What are the logical channels in 3GPP?

In 3GPP specifications, several types of data transfer services are offered by MAC. Each logical channel type is defined by the type of information that it transfers. Logical channels can be classified into two general groups: Control Channels: Control channels are used for the transfer of control plane information only.