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

專(zhuān)利號(hào)
US10149282B2
公開(kāi)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(lèi)
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(shuō)明書(shū)

PRIORITY

The present application is a Continuation Application of U.S. application Ser. No. 13/785,769, filed in the U.S. Patent and Trademark Office (USPTO) on Mar. 5, 2013, which claims priority under 35 U.S.C. § 119(e) to U.S. Provisional Application Nos. 61/606,772, 61/675,518, 61/684,997, and 61/717,998, which were filed in the USPTO on Mar. 5, 2012, Jul. 25, 2012, Aug. 20, 2012, and Oct. 24, 2012, respectively, the disclosures of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to wireless communication systems and, more particularly, to the transmission and reception of ACKnowledgements (ACK) signals.

2. Description of the Art

A communication system includes a DownLink (DL) that conveys transmission signals from transmission points, such as, for example, Base Stations (BSs), or NodeBs, to User Equipments (UEs). The communication system also includes an UpLink (UL) that conveys transmission signals from UEs to reception points, such as, for example BSs or NodeBs. A UE, which is also commonly referred to as a terminal or a mobile station, may be fixed or mobile and may be embodied as a cellular phone, a personal computer device, etc. A NodeB is generally a fixed station and may also be referred to as an access point or some other equivalent terminology.

DL signals consist of data signals carrying information content, control signals carrying DL Control Information (DCI), and Reference Signals (RSs), which are also known as pilot signals. A NodeB transmits data information or DCI to UEs through a Physical DL Shared CHannel (PDSCH) or a Physical DL Control CHannel (PDCCH), respectively.

權(quán)利要求

1
What is claimed is:1. A method for wireless communications, the method comprising:receiving configuration information comprising a resource start offset and information for a transmission type of an enhanced physical downlink control channel (EPDCCH);receiving 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);determining a resource of a physical uplink control channel (PUCCH) based on a first CCE of the at least one of the CCEs, information in the DCI, and the resource start offset in the configuration information, in response to the transmission type of the EPDCCH being distributed transmission; andtransmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) signal on the resource to the base station.2. The method of claim 1, wherein the information in the DCI is a resource offset used for determining the resource of the PUCCH.3. The method of claim 2, wherein the resource offset is two bits.4. The method of claim 1, wherein, in response to the transmission type of the EPDCCH being distributed transmission, an index of the resource of the PUCCH is determined as a sum of a first parameter determined from the first CCE, a second parameter determined from the information in the DCI, and a third parameter configured by the resource start offset.5. The method of claim 1, further comprising:determining the resource of the PUCCH based on the first CCE of the at least one of the CCEs, the at least one antenna port, information in the DCI, and the resource start offset in the configuration information, in response to the transmission type of EPDCCH being localized transmission.6. The method of claim 5, wherein the information in the DCI is a resource offset used for determining the resource of the PUCCH.7. The method of claim 6, wherein the resource offset is two bits.8. The method of claim 1, wherein, in response to the transmission type of the EPDCCH being localized transmission, an index of the resource of the PUCCH is determined as a sum of a first parameter determined from the first CCE, a second parameter determined from the at least one antenna port, a third parameter determined from the information in the DCI, and a fourth parameter configured by the resource start offset.9. The method of claim 1, wherein the EPDCCH consists of the at least one of the CCEs in a time resource region for downlink data transmission.10. An apparatus of a user equipment (UE) for wireless communications, the apparatus comprising:a receiver configured to receive configuration information comprising a resource start offset and information for a transmission type of an enhanced physical downlink control channel (EPDCCH), and receive 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);a processor configured to determine a resource of a physical uplink control channel (PUCCH) based on a first CCE of the at least one of the CCEs, information in the DCI, and the resource start offset in the configuration information, in response to the transmission type of the PDCCH being distributed transmission; anda transmitter configured to transmit a hybrid automatic repeat request acknowledgement (HARQ-ACK) signal on the resource to the base station.11. The apparatus of claim 10, wherein the information in the DCI is a resource offset used for determining the resource of the PUCCH.12. The apparatus of claim 11, wherein the resource offset is two bits.13. The apparatus of claim 10, wherein, in response to the transmission type of the EPDCCH being distributed transmission, an index of the resource of the PUCCH is determined as a sum of a first parameter determined from the first CCE, a second parameter determined from the DCI, and a third parameter configured by the resource start offset.14. The apparatus of claim 10, wherein the processor is further configured to determine the resource of the PUCCH based on the first CCE of the at least one of the CCEs, the at least one antenna port, information in the DCI, and the resource start offset in the configuration information, in response to the transmission type of EPDCCH being localized transmission.15. The apparatus of claim 14, wherein the information in the DCI is a resource offset used for determining the resource of the PUCCH.16. The apparatus of claim 15, wherein the resource offset is two bits.17. The apparatus of claim 10, wherein, in response to the transmission type of the EPDCCH being localized transmission, an index of the resource of the PUCCH is determined as a sum of a first parameter determined from the first CCE, a second parameter determined from the at least one antenna port, a third parameter determined from the DCI, and a fourth parameter configured by the resource start offset.18. The apparatus of claim 10, wherein the EPDCCH consists of the at least one of the CCEs in a time resource region for downlink data transmission.
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