Title:
A search space design for e-PDCCH in a wireless communication network
Document Type and Number:
Japanese Patent JP6033930
Kind Code:
B2
Abstract:
An enhanced physical downlink control channel (e-PDCCH) may provide carrier aggregation (CA) enhancements, help support new carriers which may not be backwards compatible, reduce control channel capacity limitations of coordinated multipoint (CoMP) transmissions, and enhance DL MIMO. In wireless communication networks, such as Long Term Evolution (LTE), user equipments (UEs) may monitor both a common search space and a UE-specific search space in a control region. A search space may comprise a set of channel control element (CCE) locations where a UE may find its PDCCHs. One or more CCEs are used to transmit each PDCCH. Certain aspects provide methods and apparatus for determining a search space comprising a subset of CCEs located on a band edge of available frequency resources, and performing a search of the search space to decode at least one PDCCH.
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Inventors:
Wanshi Chen
Tao Luo
Jerena Damund Janovic
Peter girl
Juan Montjou
Tao Luo
Jerena Damund Janovic
Peter girl
Juan Montjou
Application Number:
JP2015144264A
Publication Date:
November 30, 2016
Filing Date:
July 21, 2015
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04W72/04; H04W28/04
Foreign References:
| WO2011126212A2 |
Other References:
HTC,Search Space Design for E-PDCCH,R1-120267,フランス,3GPP,2012年 2月 1日,paragraph 2
LG Electronics,E-PDCCH Search Space Configuration,R1-121455,フランス,3GPP,2012年 3月20日,paragraph 2
LG Electronics, Alcatel-Lucent, Alcatel-Lucent Shanghai Bell, HiSilicon, Huawei, InterDigital, MediaTek, Qualcomm, RIM,Way forward on EPDCCH search space monitoring,R1-123933,フランス,3GPP,2012年 8月16日,p.2
Qualcomm Incorporated,Remaining details of association between DM-RS ports and EPDCCH transmission,R1-124451,フランス,3GPP,2012年 9月29日,paragraph 2.3.1
Alcatel-Lucent Shanghai Bell,Alcatel-Lucent,Remaining Details of Search Space and Aggregation Levels,R1-124418,フランス,3GPP,2012年 9月29日,paragraph 2.2
LG-Nortel,R-PDCCH Multiplexing for LTE-A relay node,R1-103145,フランス,3GPP,2010年 5月 4日,paragraph 3.1
NTT DOCOMO,Views on the scenario for DL control signaling enhancement in Rel-11,R1-113287,フランス,3GPP,2011年10月 4日,paragraph 2
Potevio,Considerations on search space design for E-PDCCH,R1-120617,フランス,3GPP,2012年 1月31日,paragraph 2
LG Electronics,E-PDCCH Search Space Configuration,R1-121455,フランス,3GPP,2012年 3月20日,paragraph 2
LG Electronics, Alcatel-Lucent, Alcatel-Lucent Shanghai Bell, HiSilicon, Huawei, InterDigital, MediaTek, Qualcomm, RIM,Way forward on EPDCCH search space monitoring,R1-123933,フランス,3GPP,2012年 8月16日,p.2
Qualcomm Incorporated,Remaining details of association between DM-RS ports and EPDCCH transmission,R1-124451,フランス,3GPP,2012年 9月29日,paragraph 2.3.1
Alcatel-Lucent Shanghai Bell,Alcatel-Lucent,Remaining Details of Search Space and Aggregation Levels,R1-124418,フランス,3GPP,2012年 9月29日,paragraph 2.2
LG-Nortel,R-PDCCH Multiplexing for LTE-A relay node,R1-103145,フランス,3GPP,2010年 5月 4日,paragraph 3.1
NTT DOCOMO,Views on the scenario for DL control signaling enhancement in Rel-11,R1-113287,フランス,3GPP,2011年10月 4日,paragraph 2
Potevio,Considerations on search space design for E-PDCCH,R1-120617,フランス,3GPP,2012年 1月31日,paragraph 2
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Morisezo Iseki
Okumura Motohiro
Yoshihiro Fukuhara
Morisezo Iseki
Okumura Motohiro