MOBILE COMMUNICATION SYSTEM

WIPO Patent Application WO/2011/135825

A1

A mobile communication system includes a plurality of eNBs that wirelessly communicate with UEs, and an MCE that controls the eNBs. The MCE provides MBSFN subframes (MCE) involving radio resources that transmit reference signals for measuring electric power to UEs at a lower frequency than normal, to the eNBs. In addition to the MBSFN subframes (MCE) provided by the MCE, the eNBs specify MBSFN subframes (eNB) involving radio resources that transmit reference signals to UEs at a lower frequency than normal, and transmit the reference signals in the MBSFN subframes (MCE) and the MBSFN subframes (eNB) to the UEs. As a result of this configuration, reference signals for measuring electric power can be transmitted at a lower frequency than normal, enabling the consumption of electric power in an infrastructure to be reduced.

MAEDA MIHO (JP)
MOCHIZUKI MITSURU (JP)

PCT/JP2011/002406

November 03, 2011

April 25, 2011

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MITSUBISHI ELECTRIC CORP (JP)
MAEDA MIHO (JP)
MOCHIZUKI MITSURU (JP)

H04W52/02; H04W72/04

ERICSSON ET AL.: "Extended cell DTX for enhanced energy-efficient network operation", 3GPP TSG-RAN WG1 #59 R1-095011, 13 November 2009 (2009-11-13), XP050489176
SAMSUNG: "Considerations on Extended Cell DTX", 3GPP TSG RAN WG1 #59BIS RL-100144, 22 January 2010 (2010-01-22), XP050417867
HUAWEI: "Energy saving techniques for LTE", 3GPP TSG RAN WG2 #69 R2-101213, 26 February 2010 (2010-02-26), XP050421779
See also references of EP 2566257A4

TAKAHASHI, Shogo et al. (JP)
Shogo Takahashi (JP)

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