Title:
CM INTERFERENCE DEGREE MEASUREMENT METHOD, DEVICE AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/032242
Kind Code:
A1
Abstract:
The present invention provides a CM interference degree measurement method, device and system. The method comprises: a CMTS sends a broadcast message to all CMs connected to the CMTS, the broadcast message comprising information which indicates that one of the CMs sends a probing signal by means of a frequency spectrum S in a time slot T; the CMTS sends, in a broadcast mode, a pseudo-random code sequence PRBS in a downlink direction by means of the frequency band S in the time slot T; the CMTS obtains modulation error rate (MER) data recorded by other CMs in the time slot T, and a difference value between the MER data of each of the other CMs in the time slot T and MER data thereof in a normal data time slot is used as the interference intensity of the corresponding CM. The solution of the present invention can ensure that the measured CM interference intensity is more accurate, and can quickly complete CM grouping directly according to a size relationship between the interference degree and a threshold value.
Inventors:
ZHANG LI (CN)
Application Number:
PCT/CN2016/095286
Publication Date:
February 22, 2018
Filing Date:
August 15, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B3/10
Domestic Patent References:
| WO2016090591A1 | 2016-06-16 |
Foreign References:
| US20140022943A1 | 2014-01-23 | |||
| CN105704823A | 2016-06-22 | |||
| CN105306250A | 2016-02-03 |
Other References:
ETSI: "Access, Terminals, Transmission and Multiplexing (ATTM); Third Generation Transmission Systems for Interactive Cable Television Services-IP Cable Modems; Part 4: MAC and Upper Layer Protocols DOCSIS 3.0", ETSI EN 302.878-4 V1.1.1., vol. 302, 30 November 2011 (2011-11-30), pages 42 - 961, XP055468251
See also references of EP 3496285A4
See also references of EP 3496285A4
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