Title:
METHODS AND APPARATUS FOR A DATA TRANSMISSION SCHEME FOR NARROW-BAND INTERNET OF THINGS
Document Type and Number:
WIPO Patent Application WO/2017/119992
Kind Code:
A3
Abstract:
Certain aspects of the present disclosure relate to methods and apparatus for implementing a data transmission scheme for Narrow-Band Internet of Things (NB IoT). A User Equipment (UE) combines pairs of antenna ports to generate at least first and second combined antennas ports. The UE receives reference signals transmitted in a narrow band region of a larger system bandwidth, and for each combined port, adds the references signals received on resource elements (REs) of each of the combined pair of antenna ports. The UE determines channel estimates for each combined antenna port based on the added reference signals for the combined port.
Inventors:
GAAL PETER (US)
XU HAO (US)
CHEN WANSHI (US)
WANG XIAOFENG (US)
RICO-ALVARINO ALBERTO (US)
XU HAO (US)
CHEN WANSHI (US)
WANG XIAOFENG (US)
RICO-ALVARINO ALBERTO (US)
Application Number:
PCT/US2016/066298
Publication Date:
October 26, 2017
Filing Date:
December 13, 2016
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
H04L5/00; H04B7/06; H04L1/06; H04L25/02; H04L25/03; H04W4/70
Foreign References:
| US20130315081A1 | 2013-11-28 | |||
| EP1290809A1 | 2003-03-12 |
Other References:
FUJITSU: "CSI-RS Design for Virtualized LTE Antenna in LTE-A System", 3GPP DRAFT; R1-093152, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. Shenzhen, China; 20090818, 18 August 2009 (2009-08-18), XP050351511
SAMSUNG: "Reference signal structure for 4-TX antenna MIMO", 3GPP DRAFT; R1-063254, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Riga, Latvia; 20061101, 1 November 2006 (2006-11-01), XP050103704
HANZO L ET AL: "OFDM and MC-CDMA for broadband multi-user communications, WLANs, and broadcasting", OFDM AND MC-CDMA FOR BROADBAND MULTI-USER COMMUNICATIONS, WLANSAND BROADCASTING, XX, XX, 1 January 2003 (2003-01-01), pages 84 - 92, XP002297739
ERICSSON: "E-UTRA downlink scrambling", vol. RAN WG1, no. Helsinki, Finland; 20060123 - 20060125, 19 January 2006 (2006-01-19), XP050950931, Retrieved from the Internet
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (Release 13)", 3GPP STANDARD; 3GPP TS 36.211, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. V13.0.0, 5 January 2016 (2016-01-05), pages 1 - 141, XP051047447
SAMSUNG: "Reference signal structure for 4-TX antenna MIMO", 3GPP DRAFT; R1-063254, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Riga, Latvia; 20061101, 1 November 2006 (2006-11-01), XP050103704
HANZO L ET AL: "OFDM and MC-CDMA for broadband multi-user communications, WLANs, and broadcasting", OFDM AND MC-CDMA FOR BROADBAND MULTI-USER COMMUNICATIONS, WLANSAND BROADCASTING, XX, XX, 1 January 2003 (2003-01-01), pages 84 - 92, XP002297739
ERICSSON: "E-UTRA downlink scrambling", vol. RAN WG1, no. Helsinki, Finland; 20060123 - 20060125, 19 January 2006 (2006-01-19), XP050950931, Retrieved from the Internet
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (Release 13)", 3GPP STANDARD; 3GPP TS 36.211, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. V13.0.0, 5 January 2016 (2016-01-05), pages 1 - 141, XP051047447
Attorney, Agent or Firm:
READ, Randol W. et al. (US)
Download PDF: