Section: – ChildIE1-WithoutEM
Content: The IE ChildIE1-WithoutEM is an example of a lower level IE, used to control certain radio configurations including a configurable feature which can be setup or released using the local IE ChIE1-ConfigurableFeature. The example illustrates how the new field chIE1-NewField is added in release N to the configuration of the configurable feature. The example is based on the following assumptions: – When initially configuring as well as when modifying the new field, the original fields of the configurable feature have to be provided also i.e. as if the extended ones were present within the setup branch of this feature. – When the configurable feature is released, the new field should be released also. – When omitting the original fields of the configurable feature the UE continues using the existing values (which is used to optimise the signalling for features that typically continue unchanged upon handover). – When omitting the new field of the configurable feature the UE releases the existing values and discontinues the associated functionality (which may be used to support release of unsupported functionality upon handover to an eNB supporting an earlier protocol version). The above assumptions, which affect the use of conditions and need codes, may not always apply. Hence, the example should not be re-used blindly. ChildIE1-WithoutEM information element -- /example/ ASN1START ChildIE1-WithoutEM ::= SEQUENCE { -- Root encoding, including: chIE1-ConfigurableFeature ChIE1-ConfigurableFeature OPTIONAL -- Need N } ChildIE1-WithoutEM-vNx0 ::= SEQUENCE { chIE1-ConfigurableFeature-vNx0 ChIE1-ConfigurableFeature-vNx0 OPTIONAL -- Cond ConfigF } ChIE1-ConfigurableFeature ::= CHOICE { release NULL, setup SEQUENCE { -- Root encoding } } ChIE1-ConfigurableFeature-vNx0 ::= SEQUENCE { chIE1-NewField-rN INTEGER (0..31) } -- ASN1STOP