User equipment, base station apparatus, and method

• US 7,974,177 B2
• Filed: 12/26/2007
• Issued: 07/05/2011
• Est. Priority Date: 01/09/2007
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Ofuji, Yoshiaki, Higuchi, Kenichi, Umesh, Anil, Sawahashi, Mamoru
• Primary Examiner(s): LEVITAN, DMITRY
• Application Number:
  US12/521,966
• Publication Number:
  US 20100002655A1
• Time in Patent Office: 1,287 Days
• Field of Search: 370203-208, 370/310, 370/312, 370328-330, 370/431, 370/432, 370/436, 370/437, 370/458, 455/422, 455/70
• US Class Current: 370/203
• CPC Class Codes: H04J 13/0059 CAZAC [constant-amplitude and zero auto-correlation]
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1692 Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

User equipment that is capable of transmitting at least an uplink control channel to a base station apparatus using a single carrier method and to which persistent scheduling is applied, the user equipment includes a unit providing data arrival acknowledgement information, a unit providing channel quality information, a control channel generation unit generating an uplink control channel including at least one of the data arrival acknowledgement information or the channel quality information, and a transmission unit transmitting the uplink control channel using a predetermined dedicated bandwidth, in which the uplink control channel includes at least one unit block including a sequence in which a same factor reported using an upper-layer signaling is multiplied to each chip of an orthogonal code sequence for the user equipment.

Claims

1. A user equipment terminal transmitting at least an uplink control channel to a base station apparatus using a single carrier method, the user equipment terminal employing persistent scheduling in which a predetermined resource is periodically allocated in advance, the user equipment terminal comprising:

a determination unit that provides data arrival acknowledgement information indicating an acknowledgement response or a negative acknowledgement response as a response to a downlink data channel;

an estimation unit that provides channel quality information indicating downlink channel quality;

a control channel generation unit that generates an uplink control channel including at least one of the data arrival acknowledgement information and the channel quality information; and

a transmission unit that, when no resource for transmitting an uplink data channel is allocated, transmits the uplink control channel using a radio resource dedicated to the persistent scheduling, wherein

the uplink control channel includes at least one unit block including a sequence in which a same complex number is multiplied to each chip of an orthogonal code sequence the user equipment terminal.

2. The user equipment terminal according to claim 1, wherein

the radio resource dedicated to the persistent scheduling used in the transmission unit is reported using an upper layer signaling.

3. The user equipment terminal according to claim 2, wherein

the transmission unit uses a same resource for the uplink control channel including the data arrival acknowledgement information and the uplink control channel including the channel quality information.

4. The user equipment terminal according to claim 3, wherein

the resource used in the transmission unit is determined to be different from that used in other user equipment terminal.

5. The user equipment terminal according to claim 2, wherein

the resource used in the transmission unit is determined to be different from that used in other user equipment terminal.

6. The user equipment terminal according to claim 1, wherein

the transmission unit uses a same resource for the uplink control channel including the data arrival acknowledgement information and the uplink control channel including the channel quality information.

7. The user equipment terminal according to claim 6, wherein

the resource used in the transmission unit is determined to be different from that used in other user equipment terminal.

8. The user equipment terminal according to claim 1, wherein

the resource used in the transmission unit is determined to be different from that used in other user equipment terminal.

9. A user equipment terminal transmitting at least an uplink control channel to a base station apparatus using a single carrier method, the user equipment terminal comprising:

a determination unit that provides data arrival acknowledgement information indicating an acknowledgement response or a negative acknowledgement response as a response to a downlink data channel;

an estimation unit that provides channel quality information indicating downlink channel quality;

a control channel generation unit that generates an uplink control channel including at least one of the data arrival acknowledgement information and the channel quality information; and

a transmission unit that, when no resource for transmitting an uplink data channel is allocated, transmits the uplink control channel using a predetermined dedicated bandwidth, wherein

the uplink control channel includes at least one unit block including a sequence in which a same complex number is multiplied to each chip of an orthogonal code sequence for the user equipment terminal, and

the transmission unit uses a resource based on the downlink control channel when allocation information of the downlink data channel is included in a downlink control channel, and uses a resource reported using an upper-layer signaling when persistent scheduling is being applied.

10. The user equipment terminal according to claim 9, wherein

the transmission unit uses a same resource for the uplink control channel including the data arrival acknowledgement information and the uplink control channel including the channel quality information.

11. The user equipment terminal according to claim 10, wherein

the resource used in the transmission unit is determined to be different from that used in other user equipment terminal.

12. The user equipment terminal according to claim 9, wherein

the resource used in the transmission unit is determined to be different from that used in other user equipment terminal.

13. A transmission method used in a user equipment terminal transmitting at least an uplink control channel to a base station apparatus using a single carrier method, the user equipment terminal employing persistent scheduling in which a predetermined resource is periodically allocated in advance, the transmission method comprising:

a generation step of generating an uplink control channel including at least one of data arrival acknowledgement information and channel quality information, the data arrival acknowledgement information indicating an acknowledgement response or a negative acknowledgement response as a response to a downlink data channel, the channel quality information indicating downlink channel quality; and

a transmission step of, when no resource for transmitting an uplink data channel is allocated, transmitting the uplink control channel using a radio resource dedicated to the persistent scheduling, wherein

the uplink control channel includes at least one unit block including a sequence in which a same complex number is multiplied to each chip of an orthogonal code sequence for the user equipment terminal.

14. The transmission method according to claim 13, wherein

the radio resource dedicated to the persistent scheduling used in the transmission step is reported using an upper layer signaling.

15. The transmission method according to claim 14, wherein

in the transmission step, a same resource is used for the uplink control channel including the data arrival acknowledgement information and the uplink control channel including the channel quality information.

16. The transmission method according to claim 15, wherein

the resource used in the transmission step is determined to be different from that used in other user equipment terminal.

17. The transmission method according to claim 14, wherein

the resource used in the transmission step is determined to be different from that used in other user equipment terminal.

18. The transmission method according to claim 13, wherein

in the transmission step, a same resource is used for the uplink control channel including the data arrival acknowledgement information and the uplink control channel including the channel quality information.

19. The transmission method according to claim 18, wherein

the resource used in the transmission step is determined to be different from that used in other user equipment terminal.

20. The transmission method according to claim 13, wherein

the resource used in the transmission step is determined to be different from that used in other user equipment terminal.

21. A transmission method used in a user equipment terminal transmitting at least an uplink control channel to a base station apparatus using a single carrier method, the transmission method comprising:

a generation step of generating an uplink control channel including at least one of data arrival acknowledgement information and channel quality information, the data arrival acknowledgement information indicating an acknowledgement response or a negative acknowledgement response as a response to a downlink data channel, the channel quality information indicating downlink channel quality; and

a transmission step of, when no resource for transmitting an uplink data channel is allocated, transmitting the uplink control channel using a predetermined dedicated bandwidth, wherein

the uplink control channel includes at least one unit block including a sequence in which a same complex number is multiplied to each chip of an orthogonal code sequence for the user equipment terminal, and

in the transmission step, when allocation information of the downlink data channel is included in a downlink control channel, a resource based on the downlink control channel is used, and when persistent scheduling is being applied, a resource reported using an upper-layer signaling is used.

22. The transmission method according to claim 21, wherein

in the transmission step, a same resource is used for the uplink control channel including the data arrival acknowledgement information and the uplink control channel including the channel quality information.

23. The transmission method according to claim 22, wherein

the resource used in the transmission step is determined to be different from that used in other user equipment terminal.

24. The transmission method according to claim 21, wherein

the resource used in the transmission step is determined to be different from that used in other user equipment terminal.