Title:
COMMUNICATION METHOD AND DEVICE ON UNLICENSED FREQUENCY BAND IN UE AND BASE STATION
Document Type and Number:
WIPO Patent Application WO/2015/165391
Kind Code:
A1
Abstract:
The present invention provides a communication method and device on an unlicensed frequency band in a UE and a base station. To solve a scheduling problem caused by adoption of more flexible uplink and downlink subframe configuration in an unlicensed spectrum, a UE receives high layer signaling sent by a base station. The high layer signaling indicates that a first carrier can be scheduled by control signaling transmitted in a second serving cell. The high layer signaling indicates that the first carrier can be scheduled by control signaling transmitted on the first carrier, or the first carrier can be scheduled by control signaling transmitted on the first carrier by default. The first carrier is deployed in an unlicensed spectrum, and the second serving cell is deployed in a licensed spectrum. The present invention supports adoption of more flexible uplink and downlink subframe configuration in an unlicensed spectrum without introducing a new HARQ time sequence, and therefore, the spectrum efficiency is effectively improved. The present invention reuses the scheme in an existing cellular system as much as possible and thus has good compatibility.
Inventors:
ZHANG XIAOBO (CN)
Application Number:
PCT/CN2015/077738
Publication Date:
November 05, 2015
Filing Date:
April 28, 2015
Export Citation:
Assignee:
SHANGHAI LANGBO COMM TECHNOLOGY COMPANY LTD (CN)
International Classes:
H04W72/04
Foreign References:
| CN103517456A | 2014-01-15 | |||
| CN102843696A | 2012-12-26 | |||
| EP2713643A1 | 2014-04-02 |
Other References:
See also references of EP 3139685A4
Attorney, Agent or Firm:
SHANGHAI HANGSOME INTELLECTUAL PROPERTY LTD. (CN)
上海汉声知识产权代理有限公司 (CN)
上海汉声知识产权代理有限公司 (CN)
Download PDF: