Global Patent Index - EP 3858064 A4

EP 3858064 A4 20220622 - SYSTEM AND METHODS FOR ENABLING DL-EDT

Title (en)

SYSTEM AND METHODS FOR ENABLING DL-EDT

Title (de)

SYSTEM UND VERFAHREN ZUR AKTIVIERUNG VON DL-EDT

Title (fr)

SYSTÈME ET PROCÉDÉS PERMETTANT UN EDT DL

Publication

EP 3858064 A4 20220622 (EN)

Application

EP 19865907 A 20190926

Priority

  • US 201862737486 P 20180927
  • US 201862753838 P 20181031
  • US 201962800341 P 20190201
  • US 2019053121 W 20190926

Abstract (en)

[origin: WO2020069103A1] Systems and methods of providing support for MT EDT are described. System information or an RRC paging message sent to the UE from the eNB indicates DL EDT data is to be transmitted to the UE. A random access preamble transmitted on a PRACH is a dedicated preamble for DL EDT data transmission dependent on the CE level or selected from a pool of EDT preambles. The RAR transmitted in response includes a UL grant having UL resources for transmission of a service request. The RRC EDT Request sent in response indicates that the UE has activated AS security. The RRC message transmitted by the eNB after the indication of AS security activation depends on whether the UE is able to receive the DL EDT data, based on the CE level, and whether the UE is able to avoid acknowledgment of the DL EDT data if sent.

IPC 8 full level

H04W 28/02 (2009.01); H04W 68/02 (2009.01); H04W 72/14 (2009.01); H04W 74/00 (2009.01); H04W 74/08 (2009.01); H04W 76/27 (2018.01)

CPC (source: EP)

H04W 68/005 (2013.01); H04W 74/0833 (2013.01); H04W 76/27 (2018.01)

Citation (search report)

  • [XYI] HUAWEI ET AL: "Early DL data transmission", vol. RAN WG2, no. Athens, Greece; 20180226 - 20180302, 15 February 2018 (2018-02-15), XP051399419, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg%5Fran/WG2%5FRL2/TSGR2%5F101/Docs/> [retrieved on 20180215]
  • [YA] LG ELECTRONICS: "Data transmission during random access procedure in MTC", vol. RAN WG1, no. Sanya, China; 20180416 - 20180420, 7 April 2018 (2018-04-07), XP051413939, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg%5Fran/WG1%5FRL1/TSGR1%5F92b/Docs/> [retrieved on 20180407]
  • [YA] ERICSSON: "Remaining Issues in Early Data Transmission over NAS", vol. RAN WG2, no. Reno, Nevada, USA; 20171127 - 20171201, 17 November 2017 (2017-11-17), XP051371885, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg%5Fran/WG2%5FRL2/TSGR2%5F100/Docs/> [retrieved on 20171117]
  • [YA] INTEL CORPORATION: "Early data transmission discussion for eFeMTC and FeNB- IoT", vol. RAN WG2, no. Prague, Czech Republic; 20171009 - 20171013, 8 October 2017 (2017-10-08), XP051342676, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN2/Docs/> [retrieved on 20171008]
  • [A] HUAWEI ET AL: "Early data transmission for NB-IoT and eMTC", vol. RAN WG2, no. Prague, Czech Republic; 20171009 - 20171013, 28 September 2017 (2017-09-28), XP051354481, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_99bis/Docs/> [retrieved on 20170928]
  • See references of WO 2020069103A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2020069103 A1 20200402; CN 112400356 A 20210223; EP 3858064 A1 20210804; EP 3858064 A4 20220622

DOCDB simple family (application)

US 2019053121 W 20190926; CN 201980041035 A 20190926; EP 19865907 A 20190926