Title:
UE BASED FAST RETURN FROM 3G TO 5G
Document Type and Number:
WIPO Patent Application WO/2019/227278
Kind Code:
A1
Abstract:
Aspects of the present disclosure provide techniques that allow the user equipment (UE) that initiated single radio voice call continuity (SRVCC) handover during an active voice session from 5G new radio (NR) to 3G legacy system to effectively transition back from 3G legacy systems to 5G NR systems after conclusion of the active voice session. In one example, the UE may override radio resource control (RRC) connection release with evolved universal terrestrial radio access network (E-UTRAN) frequency information that may direct the UE to camp in E-UTRAN cell (LTE cell). In another example, the UE, as a local policy or configuration, may override the UTRAN cell information when the UE is registered in next generation radio access network (NR) cell as 5G capable UE.
Inventors:
ZHANG JUAN (US)
ZHU XIPENG (US)
ZISIMOPOULOS HARIS (US)
PICA FRANCESCO (US)
ZHU XIPENG (US)
ZISIMOPOULOS HARIS (US)
PICA FRANCESCO (US)
Application Number:
PCT/CN2018/088672
Publication Date:
December 05, 2019
Filing Date:
May 28, 2018
Export Citation:
Assignee:
QUALCOMM INC (US)
ZHANG JUAN (CN)
ZHU XIPENG (US)
ZISIMOPOULOS HARIS (GB)
PICA FRANCESCO (US)
ZHANG JUAN (CN)
ZHU XIPENG (US)
ZISIMOPOULOS HARIS (GB)
PICA FRANCESCO (US)
International Classes:
H04W36/14
Domestic Patent References:
| WO2018065936A1 | 2018-04-12 |
Foreign References:
| CN104717708A | 2015-06-17 |
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LIMITED (CN)
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