User equipment, pdsch a/n transmitting method thereof, transmission/reception point, and pdsch a/n receiving method thereof

A method for transmitting acknowledgement/negative acknowledgement (A/N) by a user equipment configured with at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the method comprising:

• receiving a physical downlink shared channel (PDSCH) transmission on the SCell;
• selecting a reference TDD configuration for the SCell;
• and
• transmitting a first A/N, the first A/N being responsive to the PDSCH transmission on the SCell,
• wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 4-1 below:
• TABLE 4-1
• Reference TDD configuration for SCell determined based on
• a PCell TDD UL-DL configuration and SCell TDD UL-DL
• configuration pair
• PCell TDD UL-DL configuration
• Reference TDD configuration
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• SCell TDD
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• UL-DL configuration
• 1
• 2
• 4
• 5
• 2
• 5
• 3
• 4
• 5
• 4
• 5
• 5
• 6
• 1
• 2
• 3
• 4
• 5
• where each reference TDD configuration in Table 1 indicates downlink association set indexes (K:
• {k0, k1, . . . kM−1}) for a subframe ‘n’ as defined in Table 4-2 below:
• TABLE 4-2
• Downlink association set index K:
• {k0, k1, . . . kM − 1} for TDD
• UL-DL
• Subframe ‘n’
• Configuration
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 0
• —
• —
• 6
• —
• 4
• —
• —
• 6
• —
• 4
• 1
• —
• —
• 7, 6
• 4
• —
• —
• —
• 7, 6
• 4
• —
• 2
• —
• —
• 8, 7, 4, 6
• —
• —
• —
• —
• 8, 7, 4, 6
• —
• —
• 3
• —
• —
• 7, 6, 11
• 6, 5
• 5, 4
• —
• —
• —
• —
• —
• 4
• —
• —
• 12, 8, 7, 11
• 6, 5, 4, 7
• —
• —
• —
• —
• —
• —
• 5
• —
• —
• 13, 12, 9, 8, 7, 5, 4, 11, 6
• —
• —
• —
• —
• —
• —
• —
• 6
• —
• —
• 7
• 7
• 5
• —
• —
• 7
• 7
• —
• where the first A/N responsive to the PDSCH transmitted in a subframe (n−ki) (0≦i≦M−1) is transmitted in the subframe ‘n’.

A transmission/reception point that communicates with a user equipment configured with at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the transmission/reception point comprising:

• a controller to select a reference TDD configuration for the SCell;
• and
• a receiver to receive a first acknowledgement/negative acknowledgement (A/N) from the user equipment, the first A/N being responsive to a physical downlink shared channel (PDSCH) transmission on the SCell,
• wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 7-1 below:
• TABLE 7-1
• Reference TDD configuration for SCell determined based on
• a PCell TDD UL-DL configuration and SCell TDD UL-DL
• configuration pair
• PCell TDD UL-DL configuration
• Reference TDD configuration
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• SCell TDD
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• UL-DL configuration
• 1
• 2
• 4
• 5
• 2
• 5
• 3
• 4
• 5
• 4
• 5
• 5
• 6
• 1
• 2
• 3
• 4
• 5
• where each reference TDD configuration in Table 7-1 indicates downlink association set indexes (K:
• {k0, k1, . . . kM−1}) for a subframe ‘n’ as defined in Table 7-2 below:
• TABLE 7-2
• Downlink association set index K:
• {k0, k1, . . . kM − 1} for TDD
• UL-DL
• Subframe ‘n’
• Configuration
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 0
• —
• —
• 6
• —
• 4
• —
• —
• 6
• —
• 4
• 1
• —
• —
• 7, 6
• 4
• —
• —
• —
• 7, 6
• 4
• —
• 2
• —
• —
• 8, 7, 4, 6
• —
• —
• —
• —
• 8, 7, 4, 6
• —
• —
• 3
• —
• —
• 7, 6, 11
• 6, 5
• 5, 4
• —
• —
• —
• —
• —
• 4
• —
• —
• 12, 8, 7, 11
• 6, 5, 4, 7
• —
• —
• —
• —
• —
• —
• 5
• —
• —
• 13, 12, 9, 8, 7, 5, 4, 11, 6
• —
• —
• —
• —
• —
• —
• —
• 6
• —
• —
• 7
• 7
• 5
• —
• —
• 7
• 7
• —
• where the first A/N responsive to the PDSCH transmitted in a subframe (n−ki) (0≦i≦M−1) is transmitted in the subframe ‘n’.

A method for receiving acknowledgement/negative acknowledgement (A/N) by a transmission/reception point that communicates with a user equipment configured with at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the method comprising:

• selecting a reference TDD configuration for the SCell;
• and
• receiving a first A/N from the user equipment, the first A/N being responsive to a physical downlink shared channel (PDSCH) transmission on the SCell,
• wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair in Table 10-1 below:
• TABLE 10-1
• Reference TDD configuration for SCell determined based on
• a PCell TDD UL-DL configuration and SCell TDD UL-DL
• configuration pair
• PCell TDD UL-DL configuration
• Reference TDD configuration
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• SCell TDD
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• UL-DL configuration
• 1
• 2
• 4
• 5
• 2
• 5
• 3
• 4
• 5
• 4
• 5
• 5
• 6
• 1
• 2
• 3
• 4
• 5
• where each reference TDD configuration in Table 1 indicates downlink association set indexes (K:
• {k0, k1, . . . kM−1}) for a subframe ‘n’ as defined in Table 10-2 below:
• TABLE 10-2
• Downlink association set index K:
• {k0, k1, . . . kM − 1} for TDD
• UL-DL
• Subframe ‘n’
• Configuration
• 0
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 0
• —
• —
• 6
• —
• 4
• —
• —
• 6
• —
• 4
• 1
• —
• —
• 7, 6
• 4
• —
• —
• —
• 7, 6
• 4
• —
• 2
• —
• —
• 8, 7, 4, 6
• —
• —
• —
• —
• 8, 7, 4, 6
• —
• —
• 3
• —
• —
• 7, 6, 11
• 6, 5
• 5, 4
• —
• —
• —
• —
• —
• 4
• —
• —
• 12, 8, 7, 11
• 6, 5, 4, 7
• —
• —
• —
• —
• —
• —
• 5
• —
• —
• 13, 12, 9, 8, 7, 5, 4, 11, 6
• —
• —
• —
• —
• —
• —
• —
• 6
• —
• —
• 7
• 7
• 5
• —
• —
• 7
• 7
• —
• where the first A/N responsive to the PDSCH transmitted in a subframe (n−ki) (0≦i≦M−1) is transmitted in the subframe ‘n’.

A method for transmitting acknowledgement/negative acknowledgement (A/N) by a user equipment configured with at least two serving cells, the at least two serving cells comprising a primary cell (PCell) and a secondary cell (SCell), and the PCell and the SCell having different Time Division Duplex (TDD) Uplink-Downlink (UL-DL) configurations, the method comprising:

• receiving a physical downlink shared channel (PDSCH) transmission on the SCell in a subframe ‘n−ki’;
• determining the interval ‘ki’ between the reception of the PDSCH transmission on the SCell and a responsive A/N transmission, the interval being determined based on a reference TDD configuration for the SCell;
• and
• transmitting the A/N responsive to the PDSCH transmission on the SCell in a subframe ‘n’ according to the interval,
• wherein the reference TDD configuration for the SCell is determined based on a PCell TDD UL-DL configuration and SCell TDD UL-DL configuration pair.