Title:
METHOD, APPARATUS AND SYSTEM FOR PHYSICAL DOWNLINK CHANNEL TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2017/133010
Kind Code:
A1
Abstract:
Provided in the embodiments of the present invention are a method, an apparatus and a system for physical downlink channel transmission, which relate to the field of communications and solve the problem that a PDCCH in an LTE system cannot support the transmission within a narrowband bandwidth. The transmission method comprises: a base station sending to a user terminal a narrowband physical downlink control channel (NB-PDCCH), in a downlink pilot time slot (DwPTS) within an nth downlink sub-frame or an nth sub-frame; the NB-PDCCH being mapped on a basic NB-PDCCH mapping unit that comprises, in a frequency domain, a first frequency resource or a second frequency resource, and comprises, in a time domain, at least one orthogonal frequency division multiplexed (OFDM) signal included in the downlink pilot time slot (DwPTS) within the nth downlink sub-frame or the nth sub-frame, the first frequency resource having a bandwidth that is less than or equal to 180kHz, the second frequency resource being the frequency resource included in one resource block (RB), where n≥1.
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Inventors:
XIA JINHUAN (CN)
Application Number:
PCT/CN2016/073703
Publication Date:
August 10, 2017
Filing Date:
February 05, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W28/00
Domestic Patent References:
| WO2016018469A1 | 2016-02-04 | |||
| WO2013141603A1 | 2013-09-26 |
Foreign References:
| CN103716841A | 2014-04-09 | |||
| CN103684675A | 2014-03-26 | |||
| CN103517420A | 2014-01-15 | |||
| US20130301524A1 | 2013-11-14 |
Other References:
See also references of EP 3393166A4
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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