HARQ timelines for TDD-FDD carrier aggregation

• US 9,538,565 B2
• Filed: 06/27/2014
• Issued: 01/03/2017
• Est. Priority Date: 09/26/2013
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: He, Hong, Fwu, Jong-Kae, Han, Seunghee, Xiong, Gang
• Primary Examiner(s): NGO, RICKY QUOC
• Assistant Examiner(s): Samuel, Dewanda
• Application Number:
  US14/318,143
• Publication Number:
  US 20150085713A1
• Time in Patent Office: 921 Days
• Field of Search: 370/297
• US Class Current: 1/1
• CPC Class Codes: G06F 9/4856 resumption being on a different machine, e.g. task migration, virtual machine migration G06F9/5088 takes precedence
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04L 1/12 by using return channel
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 47/12 Avoiding congestion; Recovering from congestion
• CPC Class Codes: H04L 47/122 by diverting traffic away from congested entities
• 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 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• 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 67/025 for remote control or remote monitoring of applications
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 36/03 Reselecting a link using a direct mode connection
• CPC Class Codes: H04W 40/22 using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
• CPC Class Codes: H04W 40/24 : Connectivity information management, e.g. connectivity discovery or connectivity update
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 52/0274 : by switching on or off the equipment or parts thereof
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/18 : Management of setup rejection or failure
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/38 : triggered by timers
• CPC Class Codes: H04W 8/005 : Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: H04W 92/20 : between access points
• CPC Class Codes: Y02D 10/00 : Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Disclosed embodiments include an end-to-end UE and eNB HARQ protocol design for various TDD-FDD joint operation wireless network configurations. Designs for timing of HARQ feedback in response to PDSCH and PUSCH transmissions (or simply, PDSCH and PUSCH) include both HARQ feedback from a UE, and HARQ feedback from an eNB. The PUSCH HARQ timeline embodiments also include both self-scheduling and cross-carrier scheduling scenarios for PUSCH transmissions. In addition, designs for the cross-carrier scheduling scenarios contemplate an FDD scheduling cell or a TDD scheduling cell.

Claims

1. A user equipment (UE) configured for cross-carrier scheduled carrier aggregation, the UE comprising:

circuitry configured to;

decode a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) or a physical downlink control channel (PDCCH) in a scheduling cell to obtain information for scheduling physical uplink shared channels (PUSCHs), the PUSCHs including a first PUSCH in the scheduling cell and a second PUSCH in a scheduled cell, the scheduling cell having a first duplex mode, the scheduled cell having a second duplex mode that is different from the first duplex mode;

detect from the PHICH, a first HARQ in response to the first PUSCH, in which the first HARQ is detected according to a first predefined HARQ timing corresponding to the first duplex mode; and

detect from the PHICH, a second HARQ in response to the second PUSCH, in which the second HARQ is detected according to a second predefined HARQ timing corresponding to the first duplex mode or the second duplex mode, in which, in response to the UE receiving during a subframe index value of n a PDCCH or a PHICH associated with the scheduled cell, the second PUSCH is configured to be transmitted during a subframe index value of n+k, where k≧

4 and where k is based on a preconfigured time division duplex (TDD) configuration type.

2. The UE of claim 1, in which the first duplex mode is a frequency division duplex (FDD) mode and the second duplex mode is a TDD mode.

3. The UE of claim 2, in which the second predefined HARQ timing corresponds to an FDD mode, in which the second predefined HARQ timing specifies that the second PUSCH transmitted during the subframe index value of n has an associated HARQ message carried in the PHICH during a subframe index value of n+4.

4. The UE of claim 2, in which the second predefined HARQ timing corresponds to a TDD mode, and in which the second predefined HARQ timing specifies that the second PUSCH transmitted during the subframe index value of n has an associated HARQ message carried in the PHICH during the subframe index value of n+k.

5. The UE of claim 1, in which the first duplex mode is a TDD mode and the second duplex mode is a frequency division duplex (FDD) mode.

6. The UE of claim 5, in which the second predefined HARQ timing corresponds to the TDD mode, and in which the second predefined HARQ timing specifies that the second PUSCH transmitted during the subframe index value of n has an associated HARQ message carried in the PHICH during the subframe index value of n+k.

7. A user equipment (UE) configured for cross-carrier scheduled carrier aggregation, the UE comprising:

circuitry configured to;

decode a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) or a physical downlink control channel (PDCCH) in a scheduling cell to obtain information for scheduling physical uplink shared channels (PUSCHs), the PUSCHs including a first PUSCH in the scheduling cell and a second PUSCH in a scheduled cell, the scheduling cell having a first duplex mode, the scheduled cell having a second duplex mode that is different from the first duplex mode;

detect from the PHICH, a first HARQ in response to the first PUSCH, in which the first HARQ is detected according to a first predefined HARQ timing corresponding to the first duplex mode; and

detect from the PHICH, a second HARQ in response to the second PUSCH, in which the second HARQ is detected according to a second predefined HARQ timing that corresponds to a time division duplex (TDD) mode, and in which the second predefined HARQ timing specifies that the second PUSCH transmitted during a subframe index value of n has an associated HARQ message carried in the PHICH during a subframe index value of n+k, where k≧

4 and where k is based on a preconfigured TDD configuration type.

8. The UE of claim 7, in which the first duplex mode is a frequency division duplex (FDD) mode and the second duplex mode is the TDD mode.

9. The UE of claim 8, in which, in response to the UE receiving during the subframe index value of n a PDCCH or a PHICH associated with the scheduled cell, the second PUSCH is configured to be transmitted during the subframe index value of n+k.

10. The UE of claim 7, in which the first duplex mode is the TDD mode and the second duplex mode is a frequency division duplex (FDD) mode.

11. The UE of claim 10, in which, in response to the UE receiving during the subframe index value of n a PDCCH or a PHICH associated with the scheduled cell, the second PUSCH is configured to be transmitted during the subframe index value of n+k.

12. The UE of claim 7, in which, in response to the UE receiving during the subframe index value of n a PDCCH or a PHICH associated with the scheduled cell, the second PUSCH is configured to be transmitted during the subframe index value of n+k.