diff -r 4816d766a08a -r f345bda72bc4 Symbian3/PDK/Source/GUID-75539D46-4DE9-5522-AC02-FA1BFD465937.dita --- a/Symbian3/PDK/Source/GUID-75539D46-4DE9-5522-AC02-FA1BFD465937.dita Tue Mar 30 11:42:04 2010 +0100 +++ b/Symbian3/PDK/Source/GUID-75539D46-4DE9-5522-AC02-FA1BFD465937.dita Tue Mar 30 11:56:28 2010 +0100 @@ -1,38 +1,38 @@ - - - - - -Network -Characteristics of the QoSThis topic describes the concepts of the network characteristics -of the QoS. -

The Quality of Service (QoS) of any communication network is defined by -the bandwidth, reliability, and latency. The other defining factors such as -coverage, security and interoperability are taken as a provided by the user.

-

When the demand for the network services increases the network carriers -need a way to share the network resources among the subscribers. Some subscribers -demand a high bandwidth such as streaming video, others require basic characteristics -such as voice telephony and messaging.

-

The service provider must handle the competing demands and charge for them -appropriately. The service provider needs tools to limit the rate and volume -of the traffic entering and passing through the network. These tools must -adapt to the changes in the environment so that the resources available to -the network are allocated when required.

-

The QoS determines:

- -

Any QoS measurement must take a balanced account of all the three -factors.

+ + + + + +Network +Characteristics of the QoSThis topic describes the concepts of the network characteristics +of the QoS. +

The Quality of Service (QoS) of any communication network is defined by +the bandwidth, reliability, and latency. The other defining factors such as +coverage, security and interoperability are taken as a provided by the user.

+

When the demand for the network services increases the network carriers +need a way to share the network resources among the subscribers. Some subscribers +demand a high bandwidth such as streaming video, others require basic characteristics +such as voice telephony and messaging.

+

The service provider must handle the competing demands and charge for them +appropriately. The service provider needs tools to limit the rate and volume +of the traffic entering and passing through the network. These tools must +adapt to the changes in the environment so that the resources available to +the network are allocated when required.

+

The QoS determines:

+
    +
  • the actual performance +of the network.

  • +
  • the network management +and the distribution of shared resources.

  • +
  • the cost of carrying +the traffic so that any level of QoS can be charged at a reasonable rate.

  • +
+

Any QoS measurement must take a balanced account of all the three +factors.

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