Mobile Technology : Bandwidth, Throughput, Latency and Jitter in mobile networks
183 بار بازدید -
6 سال پیش
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Mobile Technology : Bandwidth, Throughput,
Mobile Technology : Bandwidth, Throughput, Latency and Jitter in mobile networks
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Bandwidth
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Channel Bandwidth (often referred to as just bandwidth) is the RF bandwidth supporting a single RF carrier with the transmission bandwidth configured in the uplink or downlink of a cell. The channel bandwidth is measured in MHz (Hertz = cycle / second) and is used as a reference for transmitter and receiver RF requirements For example LTE supports scalable channel bandwidths, from 1.4 MHz to 20 MHz. The BW of UMTS channel is 5MHz
Latency & Jitter
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Latency is generally defined as the time it takes for a source to send a packet of data to a receiver. In simple terms, half of Ping time. This is also referred to as one way latency. Sometimes the term Round trip latency or round trip time (RTT) is also used to define latency. This is the same as ping time. Jitter is defined as the variation in the delay (or latency) of received packets. It is also referred to as ‘delay jitter’.
Throughput
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Throughput is the actual rate that information is transferred. It is defined as the quantity of data being sent/received by unit of time. In mobile networks, the end user throughput is the amount of information received in bits /second. Throughput is measured at Layer 1/2 or even at application layer. In a network, often cell throughput is calculated which is throughput of all simultaneous users in the cell.
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Bandwidth
--------------------------------------------------------------------------------------------------------
Channel Bandwidth (often referred to as just bandwidth) is the RF bandwidth supporting a single RF carrier with the transmission bandwidth configured in the uplink or downlink of a cell. The channel bandwidth is measured in MHz (Hertz = cycle / second) and is used as a reference for transmitter and receiver RF requirements For example LTE supports scalable channel bandwidths, from 1.4 MHz to 20 MHz. The BW of UMTS channel is 5MHz
Latency & Jitter
---------------------------------------------------------------------------------------------------
Latency is generally defined as the time it takes for a source to send a packet of data to a receiver. In simple terms, half of Ping time. This is also referred to as one way latency. Sometimes the term Round trip latency or round trip time (RTT) is also used to define latency. This is the same as ping time. Jitter is defined as the variation in the delay (or latency) of received packets. It is also referred to as ‘delay jitter’.
Throughput
--------------------------------------------------------------------------------------------------------
Throughput is the actual rate that information is transferred. It is defined as the quantity of data being sent/received by unit of time. In mobile networks, the end user throughput is the amount of information received in bits /second. Throughput is measured at Layer 1/2 or even at application layer. In a network, often cell throughput is calculated which is throughput of all simultaneous users in the cell.
6 سال پیش
در تاریخ 1397/06/21 منتشر شده
است.
183
بـار بازدید شده