Title:
HANDLING OF NON-INTEGRITY PROTECTED REJECT MESSAGES IN 5G
Document Type and Number:
WIPO Patent Application WO/2019/206140
Kind Code:
A1
Abstract:
Methods and apparatus are provided for handling of non-integrity reject message in the 5G system. In one novel aspect, the UE upon receiving the reject message via one access without integrity protection, retries one or more other accesses for one or more times before treating the rejection genuine. In one embodiment, the UE attempts the same 5GMM procedure over another access in the same cell /tracking area (TA). The alternative access including other types of 3GPP access and non-3GPP access. Subsequently, the UE can search the service from another cell /TA or another PLMN. In one embodiment, if the UE receives reject cause invalidating the UE with one access without integrity protection, the UE tries the system a few times before treating the reject genuine by tracking an invalidating counter, which is increased by one each time the rejection is received with a cause value invalidating the UE.
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Inventors:
NIEMI MARKO (FI)
MOISANEN MATTI (FI)
ESKELINEN JARKKO (FI)
MOISANEN MATTI (FI)
ESKELINEN JARKKO (FI)
Application Number:
PCT/CN2019/083888
Publication Date:
October 31, 2019
Filing Date:
April 23, 2019
Export Citation:
Assignee:
MEDIATEK SINGAPORE PTE LTD (SG)
MEDIATEK INC (CN)
MEDIATEK INC (CN)
International Classes:
H04W12/106; H04W60/00
Domestic Patent References:
| WO2017135702A1 | 2017-08-10 |
Foreign References:
| US20180020417A1 | 2018-01-18 | |||
| CN102457831A | 2012-05-16 | |||
| CN107182109A | 2017-09-19 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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