Handling of Parameters Provided in Release / Suspend
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsIcaro L. J. Da Silva, Gunnar Mildh
Life of this patent
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Abstract
New Radio (NR) RRC includes an RRC_INACTIVE state, which introduces ambiguities in the network's knowledge of UE behavior. A mechanism is introduced for handling parameters received when a UE enters RRC_INACTIVE or RRC_IDLE upon the UE attempting to resume an RRC connection and, as a response, receiving a Release or Suspend message. The timer associated to the mobilityControlInfo (equivalent to T320) is stopped and associated parameters discarded upon receiving RRC Release or Suspend. Information received in a Release or Suspend message is discarded upon receiving RRC Release or RRC Suspend.
Claims14
A method of managing Radio Resource Control, RRC, states, performed by a wireless device operative in a wireless communication network, the method comprising:
- while in an RRC_INACTIVE state, and performing activities associated with dedicated idle or inactive mobility related parameters, sending an RRCResumeRequest message to the network requesting to enter an RRC_CONNECTED state;
- receiving from the network, in response to the RRCResumeRequest message, one of an RRCRelease message directing the wireless device to enter an RRC_IDLE state and an RRCSuspend message directing the wireless device to remain in RRC_INACTIVE state, wherein neither the RRCRelease message nor the RRCSuspend includes and explicit direction to discard stored parmeters;
- in response to receiving either the RRCRelease or RRCSuspend message and without otherwise receiving from the network any explicit direction to discard stored parmeters:
- discarding stored dedicated idle or inactive mobility related parameters;
- and
- discontinuing the activities associated with the dedicated idle or inactive mobility related parameters.
A wireless device operative to manage Radio Resource Control, RRC, states, while operative in a wireless communication network, comprising:
- communication circuitry;
- and
- processing circuitry operatively connected to the communication circuitry, and adapted to:
- while in an RRC_INACTIVE state, and performing activities associated with dedicated idle or inactive mobility related parameters, send an RRCResumeRequest message to the network requesting to enter an RRC_CONNECTED state;
- receive from the network, in response to the RRCResumeRequest message, one of an RRCRelease message directing the wireless device to enter an RRC_IDLE state and an RRCSuspend message directing the wireless device to remain in RRC_INACTIVE state, wherein neither the RRCRelease message nor the RRCSuspend includes and explicit direction to discard stored parmeters;
- in response to receiving either the RRCRelease or RRCSuspend message and without otherwise receiving from the network any explicit direction to discard stored parameters:
- discard stored dedicated idle or inactive mobility related parameters;
- and
- discontinue the activities associated with the dedicated idle or inactive mobility related parameters.
Dependencies are inferred from the claim text.