Title:
SYNCHRONIZATION SIGNAL TRANSMISSION METHOD AND APPARATUS BASED ON NARROWBAND-INTERNET OF THINGS
Document Type and Number:
WIPO Patent Application WO/2020/228583
Kind Code:
A1
Abstract:
Provided are a synchronization signal transmission method and apparatus based on a narrowband-Internet of Things. The method comprises: a communication apparatus determining a first frequency-domain resource and a second frequency-domain resource, wherein the first frequency-domain resource is used for transmitting a first synchronization signal, the second frequency-domain resource is used for transmitting a second synchronization signal, the second frequency-domain resource comprises at least one physical resource block (PRB), and the center frequency F DL2 of each PRB from among the at least one PRB satisfies: F DL2 ＝ F DL1 + k × 180kHz, wherein F DL1 is the center frequency of the first frequency-domain resource, and k is a nonzero integer; and the communication apparatus receiving the first synchronization signal on the first frequency-domain resource and receiving the second synchronization signal on the second frequency-domain resource. In the present application, the synchronization signals are sent by means of increasing frequency-domain resources, so as to enhance the coverage of the synchronization signals, thereby increasing the success rate of a terminal accessing a narrowband-Internet of Things, reducing a delay in the terminal accessing the narrowband-Internet of Things, and accordingly, optimizing the power consumption of the terminal.
Inventors:
WU GENGSHI (CN)
LI JUN (CN)
TIE XIAOLEI (CN)
JIN ZHE (CN)
LI JUN (CN)
TIE XIAOLEI (CN)
JIN ZHE (CN)
Application Number:
PCT/CN2020/088975
Publication Date:
November 19, 2020
Filing Date:
May 07, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W72/04
Domestic Patent References:
| WO2018174600A1 | 2018-09-27 |
Foreign References:
| CN109041198A | 2018-12-18 |
Other References:
ZTE: "R1-1810511, Performance improvement for coexistence of NB-IoT with NR", 3GPP TSG RAN WG1 MEETING #94BIS, 12 October 2018 (2018-10-12), XP051517919, DOI: 20200710154942Y
ZTE ET AL.: "R1-1705488, Discussion on system acquisition time reduction for NB-IoT", 3GPP TSG RAN WG1 MEETING #88BIS, 7 April 2017 (2017-04-07), XP051250944, DOI: 20200710155129Y
ZTE: "R1-1812776, Coexistence of NB-IoT with NR", 3GPP TSG RAN WG1 MEETING #95, 16 November 2018 (2018-11-16), XP051554734, DOI: 20200710155337Y
HUAWEI ET AL.: "R1-1801444, Reduction of NB-IoT synchronization time", 3GPP TSG RAN WG1 MEETING #92, 2 March 2018 (2018-03-02), XP051396940, DOI: 20200710155521A
ZTE ET AL.: "R1-1705488, Discussion on system acquisition time reduction for NB-IoT", 3GPP TSG RAN WG1 MEETING #88BIS, 7 April 2017 (2017-04-07), XP051250944, DOI: 20200710155129Y
ZTE: "R1-1812776, Coexistence of NB-IoT with NR", 3GPP TSG RAN WG1 MEETING #95, 16 November 2018 (2018-11-16), XP051554734, DOI: 20200710155337Y
HUAWEI ET AL.: "R1-1801444, Reduction of NB-IoT synchronization time", 3GPP TSG RAN WG1 MEETING #92, 2 March 2018 (2018-03-02), XP051396940, DOI: 20200710155521A
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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