Title:
アップリンクサウンディング基準信号の構成および送信
Document Type and Number:
Japanese Patent JP6389849
Kind Code:
B2
Abstract:
Methods and apparatus for sounding reference signals (SRS) configuration and transmission. The methods include receiving configuration of wireless transmit/receive unit (WTRU) -specific SRS subframes for transmitting SRS and upon receipt of a trigger, transmitting the SRS for a number of antennas. The SRS transmissions may occur in each subframe of a duration of WTRU-specific SRS subframes that start a number of WTRU-specific SRS subframes after a triggering subframe. For multiple SRS transmissions from multiple antennas, cyclic shift multiplexing and different transmission combs may be used. The cyclic shift for an antenna may be determined from a cyclic shift reference value. The cyclic shift determined for each antenna providing a maximum distance between cyclic shifts for the antennas transmitting SRS in a same WTRU-specific subframe. SRS transmissions from multiple antennas in the WTRU-specific subframe may be done in parallel. Methods for handling collisions between SRS and physical channels are presented.
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Inventors:
Janet A. Stern-Belkovitz
Chang-Shu
Peter S. One
Song-Hyuk Shin
John W. Heim
Stephanie Dick
Mihaela C. Berli
Chang-Shu
Peter S. One
Song-Hyuk Shin
John W. Heim
Stephanie Dick
Mihaela C. Berli
Application Number:
JP2016155053A
Publication Date:
September 12, 2018
Filing Date:
August 05, 2016
Export Citation:
Assignee:
Interdigital Patent Holdings Inc.
International Classes:
H04W72/04; H04W16/28; H04W52/34
Domestic Patent References:
| JP2011166699A | ||||
| JP2012503406A |
Foreign References:
| WO2010087622A2 | ||||
| WO2008132073A1 | ||||
| WO2010107880A2 | ||||
| WO2010091425A2 | ||||
| WO2008123148A1 |
Other References:
NTT DOCOMO,Views on SRS Enhancement for LTE-Advanced[online], 3GPP TSG-RAN WG1#60 R1-101224,インターネット
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office