HARQ-ACK SIGNAL TRANSMISSION IN RESPONSE TO DETECTION OF CONTROL CHANNEL TYPE IN CASE OF MULTIPLE CONTROL CHANNEL TYPES
First Claim
1. A method for a User Equipment (UE) to transmit a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) signal in a Physical Uplink Control CHannel (PUCCH) in response to a detection of a Physical Downlink Control CHannel (PDCCH) transmitted from a base station in a Transmission Time Interval (TTI), the method comprising the steps of:
- detecting, by the UE, the PDCCH over a number of Control Channel Elements (CCEs), wherein the PDCCH conveys a Downlink Control Information (DCI) format comprising a HARQ-ACK PUCCH Resource Offset (HPRO) information field;
determining, by the UE, a PUCCH resource, nPUCCH, as nPUCCH=nECCE+f(HPRO)+NPUCCHE, wherein nECCE is a first CCE used for the DCI format in the PDCCH, f(HPRO) is a mapping function that provides an integer based on the HPRO information field, and NPUCCHE is an offset assigned to the UE from the base station via higher layer signaling; and
transmitting, by the UE, the HARQ-ACK signal in the determined PUCCH resource.
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Accused Products
Abstract
Methods and apparatus are described for a User Equipment (UE) to transmit and for a base station to receive a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) signal in a resource of a Physical Uplink Control CHannel (PUCCH). The HARQ-ACK signal is transmitted from the UE in response to a detection of a PDCCH transmitted from the base station and conveying a DCI format that, depending on the PDCCH type, can include a HARQ-ACK PUCCH Resource Offset (HPRO) information field. The UE and the NodeB determine the PUCCH resource depending on the PDCCH type and, if the DCI format includes the HPRO, also depending on a PDCCH transmission type.
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Citations
16 Claims
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1. A method for a User Equipment (UE) to transmit a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) signal in a Physical Uplink Control CHannel (PUCCH) in response to a detection of a Physical Downlink Control CHannel (PDCCH) transmitted from a base station in a Transmission Time Interval (TTI), the method comprising the steps of:
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detecting, by the UE, the PDCCH over a number of Control Channel Elements (CCEs), wherein the PDCCH conveys a Downlink Control Information (DCI) format comprising a HARQ-ACK PUCCH Resource Offset (HPRO) information field; determining, by the UE, a PUCCH resource, nPUCCH, as nPUCCH=nECCE+f(HPRO)+NPUCCHE, wherein nECCE is a first CCE used for the DCI format in the PDCCH, f(HPRO) is a mapping function that provides an integer based on the HPRO information field, and NPUCCHE is an offset assigned to the UE from the base station via higher layer signaling; and transmitting, by the UE, the HARQ-ACK signal in the determined PUCCH resource. - View Dependent Claims (2, 3, 4)
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5. A method for a base station (NodeB) to receive a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) signal in a Physical Uplink Control CHannel (PUCCH), the HARQ-ACK signal transmitted from a User Equipment (UE) in response to a detection of a Physical Downlink Control CHannel (PDCCH) in a Transmission Time Interval (TTI), the method comprising the steps of:
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transmitting, by the NodeB, the PDCCH over a number of Control Channel Elements (CCEs), wherein the PDCCH conveys a Downlink Control Information (DCI) format comprising a HARQ-ACK PUCCH Resource Offset (HPRO) information field; determining, by the NodeB, a PUCCH resource, nPUCCH, as nPUCCH=nECCE+f(HPRO)+NPUCCHE, wherein nECCE is a first CCE used for the DCI format in the PDCCH, f(HPRO) is a mapping function that provides an integer based on the HPRO information field, and NPUCCHE is an offset; and receiving, by the NodeB, the HARQ-ACK signal in the determined PUCCH resource. - View Dependent Claims (6, 7, 8)
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9. A User Equipment (UE) apparatus for transmitting a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) signal in a Physical Uplink Control CHannel (PUCCH) in response to a detection of a Physical Downlink Control CHannel (PDCCH) in a Transmission Time Interval (TTI), the apparatus comprising:
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a detector for detecting the PDCCH over a number of Control Channel Elements (CCEs), wherein the PDCCH conveys a Downlink Control Information (DCI) format comprising a HARQ-ACK PUCCH Resource Offset (HPRO) information field; a receiver for receiving an offset; a computation unit for determining a PUCCH resource, nPUCCH, as nPUCCH=nECCE+f(HPRO)+NPUCCHE, wherein nECCE is a first CCE used for the DCI format in the PDCCH, f(HPRO) is a mapping function that provides an integer based on the HPRO information field, and nPUCCH is the offset; and a transmitter for transmitting the HARQ-ACK signal in the determined PUCCH resource. - View Dependent Claims (10, 11, 12)
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13. A base station (NodeB) apparatus for receiving a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) signal in a Physical Uplink Control CHannel (PUCCH), the HARQ-ACK signal transmitted from a User Equipment (UE) in response to a detection of a Physical Downlink Control CHannel (PDCCH) transmitted from the NodeB apparatus in a Transmission Time Interval (TTI), the apparatus comprising:
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a transmitter for transmitting the PDCCH over a number of Control Channel Elements (CCEs), wherein the PDCCH conveys a Downlink Control Information (DCI) format comprising a HARQ-ACK PUCCH Resource Offset (HPRO) information field; a computation unit for determining a PUCCH resource, nPUCCH, as nPUCCH=nECCE+f(HPRO)+NPUCCHE, wherein nECCE is a first CCE used for the DCI format in the PDCCH, f(HPRO) is a mapping function that provides an integer based on the HPRO information field, and NPUCCHE is an offset; and a receiver for receiving the HARQ-ACK signal in the determined PUCCH resource. - View Dependent Claims (14, 15, 16)
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Specification