WIRELESS COMMUNICATION APPARATUS, ALLOCATED RESOURCE NOTIFYING METHOD AND DATA ALLOCATING METHOD

• US 20130089056A1
• Filed: 06/13/2011
• Published: 04/11/2013
• Est. Priority Date: 06/21/2010
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Iwai, Takashi, Imamura, Daichi, Nishio, Akihiko, Ogawa, Yoshihiko, Takaoka, Shinsuke
• Granted Patent: US 9,008,022 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 12/5692 Selection among different networks
• CPC Class Codes: H04L 2012/5632 Bandwidth allocation
• CPC Class Codes: H04L 5/00 Arrangements affording multiple use of the transmission path
• CPC Class Codes: H04L 5/0041 Frequency-non-contiguous
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0058 Allocation criteria
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• 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 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

Provided are a radio transmission apparatus and a radio transmission method whereby the increase of number of signaling bits can be suppressed and further the flexibility of frequency scheduling can be improved. A notified RBG calculating unit (203) that adds a predetermined offset value of “1” or “−1” to one of the start RBG number and the end RBG number of allocated RBG number information (b′i) output by a scheduling unit (201), thereby calculating notified RBG number information (bi). An RBG total number setting unit (204) calculates the total number of RBGs, which is to be notified, by adding “1” to the total number of allocated RBGs. A notified information generating unit (205) applies the notified RBG number information (bi) and the notified total number of RBGs (Nrb′) to a predetermined formula, thereby generating and transmitting, to terminals, notified information (r).

Claims

1-8. -8. (canceled)

9. A base station apparatus comprising:

an information generating section that generates resource allocation information that indicates a plurality of resources to be allocated to a terminal apparatus, in an uplink; and

a transmission section that transmits the resource allocation information,

wherein the resource allocation information includes indices corresponding to s and e and indicates each resource composed of one or more contiguous RBGs where s represents a start RBG index and e-1 represents an end RBG index.

10. The base station apparatus according to claim 9 wherein, when the start RBG index is equal to the end RBG index, a single RBG is allocated.

11. The base station apparatus according to claim 9 wherein the indices indicating allocation of two resources in the uplink are generated by start RBG index s1 and end RBG index e1 of a first resource, start RBG index s2 and end RBG index e2 of a second resource, and the total number of RBG indices N, provided that N represents the total number of RBGs in a system bandwidth in the uplink adding +1.

12. The base station apparatus according to claim 11 wherein the indices indicating the allocation of the two resources in the uplink are generated based on the following formula:

13. A terminal apparatus comprising:

a reception section that receives resource allocation information that indicates a plurality of resources allocated by a base station apparatus, in an uplink; and

a transmission section that transmits data using the plurality of resources in the uplink based on the resource allocation information,

wherein the resource allocation information includes indices corresponding to s and e and indicates each resource composed of one or more contiguous RBGs where s represents a start RBG index and e-1 represents an end RBG index.

14. The terminal apparatus according to claim 13 wherein, when the start RBG index s is equal to the end RBG index e-1, a single RBG is allocated.

15. The terminal apparatus according to claim 13, wherein the indices indicating allocation of two resources in the uplink are generated by start RBG index s1 and end RBG index e1 of a first resource, start RBG index s2 and end RBG index e2 of a second resource, and the total number of RBG indices N, provided that N represents the total number of RBGs in a system bandwidth in the uplink adding +1.

16. The terminal apparatus according to claim 15, wherein the indices indicating the allocation of the two resources in the uplink are generated based on the following formula:

17. A method of radio transmission, the method comprising the steps of:

generating resource allocation information that indicates a plurality of resources to be allocated to a terminal apparatus in an uplink; and

transmitting the resource allocation information,

wherein the resource allocation information includes indices corresponding to s and e and indicates each resource composed of one or more contiguous RBGs where s represents a start RBG index and e-1 represents an end RBG index.

18. A method of radio reception, the method comprising the steps of:

receiving resource allocation information indicating a plurality of resources allocated by a base station apparatus in an uplink; and

transmitting data using the plurality of resources in the uplink based on the resource allocation information,

wherein the resource allocation information includes indices corresponding to s and e and indicates each resource composed of one or more contiguous RBGs where s represents a start RBG index and e-1 represents an end RBG index.