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HARQ-ACK signal transmission in response to detection of control channel type in case of multiple control channel types

專利號(hào)
US10149282B2
公開日期
2018-12-04
申請(qǐng)人
Samsung Electronics Co., Ltd.（KR）
發(fā)明人
Aris Papasakellariou; Joon-Young Cho
IPC分類
H04W72/04; H04L1/18
技術(shù)領(lǐng)域
epdcch,ue,pucch,harq,ack,prbs,lcce,epdcchs,resource,nlcce
地域： Gyeonggi-do

摘要

Methods and apparatuses are provided for wireless communications. Configuration information including a resource start offset and information for a transmission type of an enhanced physical downlink control channel (EPDCCH) are received. Downlink control information (DCI), transmitted using at least one antenna port of a base station on the EPDCCH using at least one of control channel elements (CCEs), are received. A resource of a physical uplink control channel (PUCCH) is determined based on a first CCE of the at least one of CCEs, information in the DCI, and the resource start offset in the configuration information if the transmission type of the EPDCCH is distributed transmission. A hybrid automatic repeat request acknowledgement (HARQ-ACK) signal is transmitted on the resource to the base station.

說明書

In a second approach, the configured set of PRBs for localized or distributed EPDCCH transmissions may be adjusted on a subframe basis, for example, through a transmission of an EPCFICH in every subframe. By adjusting the configured set of PRBs, the UE-specific configured subset of PRBs is also adjusted. As described in U.S. Patent Application No. 61/522,399, titled “Extension of a Physical Downlink Control Channel in a Communication System”, the EPCFICH transmission can be in a minimum set of configured PRBs that is always present for distributed EPDCCH transmissions by allocating some respective REs over some subframe symbols to an EPCFICH transmission. The EPCFICH may provide information for the configured PRBs for both distributed and localized EPDCCH transmissions, or two separate EPCFICHs may be used for distributed and localized EPDCCH transmissions, respectively.

FIG. 11 is a diagram illustrating a use of an EPCFICH to indicate PRBs used for distributed and for localized EPDCCH transmissions in a subframe, according to an embodiment of the present invention.

權(quán)利要求

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