DYNAMIC HYBRID AUTOMATIC REPEAT REQUEST-ACKNOWLEDGEMENT (HARQ-ACK) TRANSMISSION WITH ENHANCED PHYSICAL DOWNLINK CONTROL CHANNELS

• US 20150195822A1
• Filed: 09/27/2013
• Published: 07/09/2015
• Est. Priority Date: 09/28/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Zhu, Yuan, Fwu, Jong-Kae, Han, Seunghee
• Granted Patent: US 9,374,806 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04J 11/0086 Search parameters, e.g. search strategy, accumulation length, range of search, thresholds code acquisition in DSSS H04B1/7075
• CPC Class Codes: H04J 3/1694 Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers Passive Optical Networks H04Q11/0062
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 41/069 using logs of notifications; Post-processing of notifications
• CPC Class Codes: H04L 41/5032 Generating service level reports
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 65/60 Network streaming of media packets
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/65 : Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04L 65/762 : at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04L 67/10 : in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04W 24/02 : Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/08 : Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 : Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0205 : at the air interface dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/0215 : based on user or device properties, e.g. MTC-capable devices services for machine-to-machine communication [M2M] or machine type communication [MTC] H04W4/70; wireless resource selection or allocation plan definition based on terminal or device properties H04W72/51
• CPC Class Codes: H04W 28/0221 : power availability or consumption
• CPC Class Codes: H04W 28/0252 : per individual bearer or channel dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/0268 : using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 28/16 : Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
• CPC Class Codes: H04W 36/0061 : of neighbour cell information
• CPC Class Codes: H04W 36/0066 : of control information between different types of networks in order to establish a new radio link in the target network
• CPC Class Codes: H04W 36/0083 : Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
• CPC Class Codes: H04W 36/0085 : Hand-off measurements
• CPC Class Codes: H04W 36/0088 : Scheduling hand-off measurements
• CPC Class Codes: H04W 36/22 : for handling the traffic
• CPC Class Codes: H04W 4/70 : Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 40/005 : Routing actions in the presence of nodes in sleep or doze mode
• CPC Class Codes: H04W 40/246 : Connectivity information discovery
• CPC Class Codes: H04W 48/14 : using user query or user detection
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/18 : Selecting a network or a communication service
• CPC Class Codes: H04W 48/20 : Selecting an access point
• CPC Class Codes: H04W 52/0209 : in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 52/0212 : managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/0225 : using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 52/0235 : where the received signal is a power saving command
• CPC Class Codes: H04W 52/0258 : controlling an operation mode according to history or models of usage information, e.g. activity schedule or time of day
• CPC Class Codes: H04W 52/0261 : managing power supply demand, e.g. depending on battery level
• CPC Class Codes: H04W 52/04 : TPC
• CPC Class Codes: H04W 52/14 : Separate analysis of uplink or downlink
• CPC Class Codes: H04W 72/02 : Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/044 : based on the type of the allocated resource
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 : in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/30 : Resource management for broadcast services
• CPC Class Codes: H04W 72/52 : based on load
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 74/002 : Transmission of channel access control information
• CPC Class Codes: H04W 74/004 : in the uplink, i.e. towards network
• CPC Class Codes: H04W 76/12 : Setup of transport tunnels
• CPC Class Codes: H04W 76/15 : Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/16 : Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
• CPC Class Codes: H04W 76/23 : Manipulation of direct-mode connections
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 : Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 76/30 : Connection release
• CPC Class Codes: H04W 8/08 : Mobility data transfer
• CPC Class Codes: H04W 80/10 : adapted for application session management, e.g. SIP [Session Initiation Protocol] connection management H04W76/00; arrangements for session management H04L67/14
• CPC Class Codes: H04W 84/042 : Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: H04W 88/12 : Access point controller devices
• CPC Class Codes: H04W 88/14 : Backbone network devices
• CPC Class Codes: H04W 88/16 : Gateway arrangements
• CPC Class Codes: H04W 88/18 : Service support devices; Network management devices
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Embodiments of a system and method for providing dynamic hybrid automatic repeat request-acknowledgement (HARQ-ACK) transmission with enhanced physical downlink control channels are generally described herein. In some embodiments, a receiver is arranged to receive, on an enhanced physical downlink control channel (ePDCCH), one of a lowest control channel element index (n_CCE) and a lowest enhanced control channel element index (n_eCCE), a user equipment specific starting offset (N_PUCCH⁽¹⁾) and at least one additional offset-related parameter. A processor determines allocation of an uplink resource of a physical uplink control channel (PUCCH) for HARQ-ACK transmission based the one of a lowest control channel element index (n_CCE) and a lowest enhanced control channel element index (n_eCCE), the user equipment specific starting offset (N_PUCCH⁽¹⁾) and at least one selected from the at least one additional offset-related parameter. A transmitter transmits a signal on the PUCCH using the allocated uplink resource.

Claims

1-25. -25. (canceled)

26. A user equipment comprising:

a receiver arranged to receive, on an enhanced physical downlink control channel (ePDCCH), a lowest control channel element index (n_cce) and a lowest enhanced control channel element index (n_eCCE), a user equipment specific starting offset N_PUCCH⁽¹⁾ and at least one additional offset-related parameter;

a processor arranged to determine allocation of an uplink resource of a physical uplink control channel (PUCCH) for Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) transmission based on the one of the lowest control channel element index (n_cce) and the lowest enhanced control channel element index (n_eCCE), the user equipment specific starting offset (N_PUCCH⁽¹⁾) and the at least one additional offset-related parameter; and

a transmitter arranged to transmit a signal on the PUCCH using the allocated uplink resource.

27. The user equipment of claim 26, wherein the at least one additional offset-related parameter comprises at least one selected from an acknowledgement/non-acknowledgement (ACK/NACK) resource offset (ARO) value, an antenna port offset (AP), a maximum number of eCCE indices among all ePDCCH sets to a user equipment in a specified subframe (N_m), an offset informed to the user equipment by higher layer signaling to avoid collision with the user equipment in coordinating cells (N_PUCCH,COMP⁽¹⁾) and a value associated with one or more of a specific subframe, a signaled value, a physical downlink shared channel, and a semi-persistent scheduling (SPS).

28. The user equipment of claim 26, wherein the receiver further receives a user equipment specific starting offset for a detected ePDCCH set configured by radio resource control (RRC) signaling (N_PUCCH,m⁽¹⁾).

29. The user equipment of claim 26, wherein the processor is further arranged to determine an ARI-based allocation of an uplink resource of a PUCCH for HARQ-ACK transmission using a backward compatible carrier (n_PUCCH⁽¹⁾) is given by n_eCCE+ARI+N_PUCCH,m⁽¹⁾, wherein f(n_ecce) is a function of the lowest enhances control channel element index (n_eCCE).

30. The user equipment of claim 26, wherein the processor is further arranged to determine an AP-based allocation of an uplink resource of a PUCCH for HARQ-ACK transmission for a new carrier type (NCT) is given by one of f(n_ecce)+2·

AP or f(n_ecce,m)+AP+N_PUCCH,m⁽¹⁾, wherein f(n_ecce,m) is a function of the lowest eCCE index for the detected ePDCCH to the user equipment at ePDCCH set m, wherein m=0, 1, . . . , M−

1 and M is the number of ePDCCH sets to the user equipment.

31. The user equipment of claim 26, wherein the processor is further arranged to determine an hybrid allocation of an uplink resource of a PUCCH for HARQ-ACK transmission using a backward compatible carrier (n_PUCCH⁽¹⁾) is given by f(n_ecce,m)+AR+AP+N_PUCCH,m⁽¹⁾.

33. The user equipment of claim 26, wherein the processor is further arranged to determine allocation of an uplink resource of the PUCCH for HARQ-ACK bundling for resource allocation for subframe n for an enhanced PDCCH transmission is given by:

34. The user equipment of claim 26, wherein the processor is further arranged to:

determine an ARI-based allocation of an uplink resource of a PUCCH for HARQ-ACK transmission given by value+n_eCCE,m+ARI+N_PUCCH,m⁽¹⁾, wherein the value is associated with one or more of a specific subframe, a signaled value, a physical downlink shared channel, and a semi-persistent scheduling (SPS);

determine, for an enhanced PDCCH used in a subframe and configured for PUCCH format 3, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission based on the ARI offset value;

determine, for an enhanced PDCCH used in a subframe and configured for PUCCH format 3, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission using transmit power controls (TPCs), other than in a subframe having downlink assignment index (DAI) equal to one on a primary cell, to indicate a used PUCCH format 3 resource among four configured resources;

determine, for an enhanced PDCCH used in a subframe and configured for one of a PUCCH format 3 and PUCCH format 1b with channel selection for the user equipment configured for carrier aggregation, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission that includes the ARI offset value for an enhanced PDCCHs transmitted on a primary cell; and

determine the allocation of the uplink resource of the PUCCH for HARQ-ACK transmission using a user equipment specific starting offset for enhanced PDCCH set s configured by RRC signaling for a downlink (DL) subframe for enhanced PDCCH and using a cell specific starting offset for enhanced PDCCH set s configured by RRC signaling for DL subframes associated with legacy PDCCH.

35. The user equipment of claim 26, wherein the processor is further arranged to transmit a HARQ-ACK PUCCH resource value on each PDCCH assignment in a primary cell and in each secondary cell to determine the PUCCH resource value within a subframe and to receive a single physical downlink shared channel (PDSCH) on a primary cell with the PDCCH having a DAI equal to one, the processor using PUCCH format 1a/1b with dynamic resource allocation for allocation of an uplink resource of the PUCCH for HARQ-ACK transmission.

36. The user equipment of claim 26, wherein the processor is further arranged to use only one of an enhanced physical downlink control channel and a legacy physical downlink control channel for downlink subframes.

37. A method for providing dynamic Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) transmission with enhanced physical downlink control channel resource allocation, comprising:

receiving, on an enhanced physical downlink control channel (ePDCCH), a lowest control channel element index (n_cce) and a lowest enhanced control channel element index (n_eCCE);

receiving, on the ePDCCH, a user equipment specific starting offset (N_PUCCH⁽¹⁾);

receiving, on the ePDCCH, at least one selected from an acknowledgement/non-acknowledgement (ACK/NACK) resource offset (ARO) value, an antenna port offset (AP), a maximum number of eCCE indices among all ePDCCH sets to a user equipment in a specified subframe (N_m), an offset informed to the user equipment by higher layer signaling to avoid collision with the user equipment in coordinating cells (N_PUCCH,COMP⁽¹⁾) and a value associated with one or more of a specific subframe, a signaled value, a physical downlink shared channel, and a semi-persistent scheduling (SPS); and

determining allocation of an uplink resource of a physical uplink control channel (PUCCH) for Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) transmission based on the one of the lowest control channel element index (n_cce) and the lowest enhanced control channel element index (n_eCCE), the user equipment specific starting offset (N_PUCCH⁽¹⁾), an acknowledgement/non-acknowledgement (ACK/NACK) resource offset (ARO) value, an antenna port offset (AP), a maximum number of eCCE indices among all ePDCCH sets to a user equipment in a specified subframe (N_m), an offset informed to the user equipment by higher layer signaling to avoid collision with the user equipment in coordinating cells (N_PUCCH,COMP⁽¹⁾), and a value associated with one or more of a specific subframe, a signaled value, a physical downlink shared channel, and a semi-persistent scheduling (SPS).

38. The method of claim 37, wherein the receiving a user equipment specific starting offset (N_PUCCH⁽¹⁾) further comprises receiving a user equipment starting offset for a detected ePDCCH set configured by RRC signaling (N_PUCCH,m⁽¹⁾).

39. The method of claim 37, wherein the determining allocation of an uplink resource of the PUCCH for HARQ-ACK transmission using a backward compatible carrier (n_PUCCH⁽¹⁾) is given by n_eCCE+ARI+N_PUCCH,m⁽¹⁾, wherein f(n_ecce) is a function of the lowest enhances control channel element index (n_eCCE).

40. The method of claim 37, wherein determining allocation of an uplink resource of the PUCCH for HARQ-ACK transmission comprises determining an AP-based allocation of an uplink resource of a PUCCH for HARQ-ACK transmission for a new carrier type (NCT) is given by one of f(n_ecce)+2·

AP or f(n_ecce,m)+AP+N_PUCCH,m⁽¹⁾, wherein f(n_ecce,m) is a function of the lowest eCCE index for the detected ePDCCH to the user equipment at ePDCCH set m, wherein m=0, 1, . . . , M−

1 and M is the number of ePDCCH sets to the user equipment.

41. The method of claim 37, wherein the determining allocation of an uplink resource of the PUCCH for HARQ-ACK transmission comprises one selected from a group consisting of

transmitting a HARQ-ACK PUCCH resource value on each PDCCH assignment in a primary cell and in each secondary cell to determine the PUCCH resource value within a subframe,

determining an hybrid allocation of an uplink resource of a PUCCH for HARQ-ACK transmission using a backward compatible carrier (n_PUCCH⁽¹⁾) is given by f(n_ecce,m)+ARI+AP+N_PUCCH,m⁽¹⁾,

determining an ARI-based allocation of an uplink resource of a PUCCH for HARQ-ACK transmission given by value+n_eCCE,m+ARI+N_PUCCH,m⁽¹⁾, wherein the value is associated with one or more of a specific subframe, a signaled value, a physical downlink shared channel, and a semi-persistent scheduling (SPS), and

determining allocation of an uplink resource of the PUCCH for HARQ-ACK bundling for resource allocation for subframe n for an enhanced PDCCH transmission according to:

42. The method of claim 37, wherein the determining allocation of an uplink resource of the PUCCH for HARQ-ACK transmission comprises one selected from:

determining, for an enhanced PDCCH used in a subframe and configured for PUCCH format 3, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission based on the ARI offset value;

determining, for an enhanced PDCCH used in a subframe and configured for PUCCH format 3, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission using transmit power controls (TPCs), other than in a subframe having downlink assignment index (DAI) equal to one on a primary cell, to indicate a used PUCCH format 3 resource among four configured resources;

determining, for an enhanced PDCCH used in a subframe and configured for one of a PUCCH format 3 and PUCCH format 1b with channel selection for the user equipment configured for carrier aggregation, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission that includes the ARI offset value for an enhanced PDCCHs transmitted on a primary cell; and

determining the allocation of the uplink resource of the PUCCH for HARQ-ACK transmission using a user equipment specific starting offset for enhanced PDCCH set s configured by RRC signaling for a downlink (DL) subframe for enhanced PDCCH and using a cell specific starting offset for enhanced PDCCH set s configured by RRC signaling for DL subframes associated with legacy PDCCH.

43. The method of claim 37 further comprising receiving a single physical downlink shared channel (PDSCH) on a primary cell with the PDCCH having a DAI equal to one, the processor using PUCCH format 1a/1b with dynamic resource allocation for allocation of an uplink resource of the PUCCH for HARQ-ACK transmission.

44. The method of claim 37 further comprises using only one of an enhanced physical downlink control channel and a legacy physical downlink control channel for downlink subframes.

45. At least one non-transitory machine readable medium comprises instructions that, when executed by the machine cause the machine to perform operations for providing dynamic Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) transmission with enhanced physical downlink control channel resource allocation, the operations comprising:

receiving, on an enhanced physical downlink control channel (ePDCCH), a lowest control channel element index (n_cce) and a lowest enhanced control channel element index (n_eCCE);

receiving, on the ePDCCH, a user equipment specific starting offset (N_PUCCH⁽¹⁾);

receiving, on the ePDCCH, at least one selected from an acknowledgement/non-acknowledgement (ACK/NACK) resource offset (ARO) value, an antenna port offset (AP), a maximum number of eCCE indices among all ePDCCH sets to a user equipment in a specified subframe (N_m), an offset informed to the user equipment by higher layer signaling to avoid collision with the user equipment in coordinating cells (N_PUCCH,COMP⁽¹⁾) and a value associated with one or more of a specific subframe, a signaled value, a physical downlink shared channel, and a semi-persistent scheduling (SPS); and

determining allocation of an uplink resource of a physical uplink control channel (PUCCH) for Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) transmission based on the one of the lowest control channel element index (n_cce) and the lowest enhanced control channel element index (n_eCCE), the user equipment specific starting offset (N_PUCCH⁽¹⁾), an acknowledgement/non-acknowledgement (ACK/NACK) resource offset (ARO) value, an antenna port offset (AP), a maximum number of eCCE indices among all ePDCCH sets to a user equipment in a specified subframe (N_m), an offset informed to the user equipment by higher layer signaling to avoid collision with the user equipment in coordinating cells (N_PUCCH,COMP⁽¹⁾), and a value associated with one or more of a specific subframe, a signaled value, a physical downlink shared channel, and a semi-persistent scheduling (SPS).

46. The at least one non-transitory machine readable medium of claim 45, wherein the receiving a user equipment specific starting offset (N_PUCCH⁽¹⁾) further comprises receiving a user equipment starting offset for a detected ePDCCH set configured by RRC signaling (N_PUCCH,m⁽¹⁾).

47. The at least one non-transitory machine readable medium of claim 45, wherein the determining allocation of an uplink resource of the PUCCH for HARQ-ACK transmission using a backward compatible carrier (n_PUCCH⁽¹⁾) is given by n_eCCE+ARI+N_PUCCH,m⁽¹⁾, wherein f(n_ecce) is a function of the lowest enhances control channel element index (n_eCCE).

48. The at least one non-transitory machine readable medium of claim 45, wherein determining allocation of an uplink resource of the PUCCH for HARQ-ACK transmission comprises determining an AP-based allocation of an uplink resource of a PUCCH for HARQ-ACK transmission for a new carrier type (NCT) is given by one of f(n_ecce)+2·

AP or f(n_ecce,m)+AP+N_PUCCH,m⁽¹⁾, wherein f(n_ecce,m) is a function of the lowest eCCE index for the detected ePDCCH to the user equipment at ePDCCH set m, wherein m=0, 1, . . . , M−

1 and M is the number of ePDCCH sets to the user equipment.

49. The at least one non-transitory machine readable medium of claim 45, wherein the determining allocation of an uplink resource of the PUCCH for HARQ-ACK transmission comprises one selected from a group consisting of

transmitting a HARQ-ACK PUCCH resource value on each PDCCH assignment in a primary cell and in each secondary cell to determine the PUCCH resource value within a subframe,

determining an hybrid allocation of an uplink resource of a PUCCH for HARQ-ACK transmission using a backward compatible carrier (n_PUCCH⁽¹⁾) is given by f(n_ecce,m)+ARI+AP+N_PUCCH,m⁽¹⁾,

determining an ARI-based allocation of an uplink resource of a PUCCH for HARQ-ACK transmission given by value+n_eCCE,m+ARI+N_PUCCH,m⁽¹⁾ wherein the value is associated with one or more of a specific subframe, a signaled value, a physical downlink shared channel, and a semi-persistent scheduling (SPS), and

determining allocation of an uplink resource of the PUCCH for HARQ-ACK bundling for resource allocation for subframe n for an enhanced PDCCH transmission according to:

50. The at least one non-transitory machine readable medium of claim 45, wherein the determining allocation of an uplink resource of the PUCCH for HARQ-ACK transmission comprises one selected from:

determining, for an enhanced PDCCH used in a subframe and configured for PUCCH format 3, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission based on the ARI offset value;

determining, for an enhanced PDCCH used in a subframe and configured for PUCCH format 3, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission using transmit power controls (TPCs), other than in a subframe having downlink assignment index (DAI) equal to one on a primary cell, to indicate a used PUCCH format 3 resource among four configured resources;

determining, for an enhanced PDCCH used in a subframe and configured for one of a PUCCH format 3 and PUCCH format 1b with channel selection for the user equipment configured for carrier aggregation, an allocation of an uplink resource of a PUCCH for HARQ-ACK transmission that includes the ARI offset value for an enhanced PDCCHs transmitted on a primary cell; and

determining the allocation of the uplink resource of the PUCCH for HARQ-ACK transmission using a user equipment specific starting offset for enhanced PDCCH set s configured by RRC signaling for a downlink (DL) subframe for enhanced PDCCH and using a cell specific starting offset for enhanced PDCCH set s configured by RRC signaling for DL subframes associated with legacy PDCCH.