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 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 actions related to idle or inactive mobility, sending RRC signaling to the network requesting to enter an RRC_CONNECTED state;
- receiving RRC signaling from the network directing the wireless device to enter an RRC_IDLE or remain in RRC_INACTIVE state;
- and
- in response to the received RRC signaling,
- discarding one or more stored dedicated idle or inactive mobility related parameters;
- and
- discontinuing activities associated with the dedicated idle or inactive mobility related parameters;
- and
- wherein an idle or inactive mobility related parameter is controlled by a timer, and
- wherein the timer is running at the time of sending RRC signaling to the network requesting to enter an RRC_CONNECTED state, further comprising:
- in response to receiving RRC signaling from the network directing the wireless device to enter an RRC_IDLE or remain in RRC_INACTIVE state, stopping the timer and discontinuing activities associated with the timer.
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 actions related to idle or inactive mobility, send RRC signaling to the network requesting to enter an RRC_CONNECTED state;
- receive RRC signaling from the network directing the wireless device to enter an RRC_IDLE or remain in RRC_INACTIVE state;
- and
- in response to the received RRC signaling,
- discard one or more stored dedicated idle or inactive mobility related parameters;
- and
- discontinue activities associated with the dedicated idle or inactive mobility related parameters;
- and
- wherein an idle or inactive mobility related parameter is controlled by a timer, and
- wherein the timer is running at the time of sending RRC signaling to the network requesting to enter an RRC_CONNECTED state, wherein the processing circuitry is further adapted to:
- in response to receiving RRC signaling from the network directing the wireless device to enter an RRC_IDLE or remain in RRC_INACTIVE state, stop the timer and discontinue activities associated with the timer.
Dependencies are inferred from the claim text.