RESOURCE ASSIGNMENT FOR SINGLE AND MULTIPLE CLUSTER TRANSMISSION

• US 20140029537A1
• Filed: 03/08/2012
• Published: 01/30/2014
• Est. Priority Date: 03/23/2011
• Status: Active Grant

• Current Assignee: Sun Patent Trust
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Golitschek Edler von Elbwart, Alexander, Nishio, Akihiko
• Granted Patent: US 9,392,594 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

This invention concerns concepts for signaling resource allocation information to a terminal that indicates to the terminal assigned resources for the terminal. The terminal can receives downlink control information (DCI), which comprises a field for indicating the resource allocation information of the terminal. This resource assignment field within the DCI has a predetermined number of bits. The terminal can determines its assigned resource allocation information from the content of the received DCI, even though the bit size of the resource allocation field in the received DCI is insufficient to represent all allowed resource allocations. According to an embodiment, the received bits that are signaled to the terminal in the DCI represent predetermined bits of the resource allocation information. All remaining one or more bits of the resource allocation information that are not included in the field of the received DCI are set to predetermined value.

Claims

1-19. -19. (canceled)

20. A method of receiving resource allocation information for assigning resources to a terminal of a mobile communication system, the method being performed by the terminal and comprising the steps of:

receiving downlink control information (DCI), wherein said downlink control information comprises a field for indicating said resource allocation information of said terminal, said field having a predetermined number of bits; and

determining said resource allocation information from said bits of said field in the received DCI;

wherein

said predetermined number of bits of said field in the received DCI is insufficient to represent the plurality of allowed resource allocations,

said bits of said field in the received DCI represent predetermined bits of said resource allocation information, and

all remaining one or more bits of said resource allocation information that are not included in said field of the received DCI are set to a predetermined value.

21. The method according to claim 20, wherein

said DCI has a predetermined format, and

said format specifies for a given bandwidth a number of bits of said field in the received DCI used for signaling said resource allocation information.

22. The method according to claim 20, wherein

said communication system is a 3GPP Long Term Evolution (LTE) system or 3GPP LTE-Advanced system,

said terminal is a user equipment (UE) or a relay node,

said resources are uplink resources and said allowed resource allocations are allowed uplink resource allocations, and

the DCI has a DCI format 0 or a DCI format 4 defined in 3GPP LTE or 3GPP LTE-A.

23. The method according to claim 20, wherein said remaining one or more bits of said resource allocation information that are not signaled in said field of said DCI are

the most significant bits (MSBs) of said resource allocation information, or

the least significant bits (LSBs) of said resource allocation information.

24. The method according to claim 20, wherein the position and/or the value of said remaining one or more bits within said resource allocation information are predefined, or

the position and/or the value of said remaining one or more bits within said resource allocation information are predetermined by the base station and are signaled to said terminal.

25. The method according to claim 20, wherein said resource allocation information represents the allocation of resource blocks (RBs) according to a single-cluster resource allocation in DCI format 0 or DCI format 4 defined in 3GPP LTE or 3GPP LTE-A.

26. The method according to claim 20, wherein said resource allocation information represents the allocation of resource block groups (RBGs) according to a multi-cluster resource allocation in DCI format 0 or DCI format 4 defined in 3GPP LTE or 3GPP LTE-A, wherein an RBG comprises a predefined plurality of adjacent RBs.

27. The method according to claim 25, wherein the value and the position of said remaining one or more bits of said resource allocation information that are not signaled in said field of said DCI are predetermined to limit the number or combinations of RBs that are assignable to said terminal.

28. The method according to claim 26, wherein the value and the position of said remaining one or more bits of said resource allocation information that are not signaled in said field of said DCI are predetermined to limit the number or combinations of RBGs that are assignable to said terminal.

29. The method according to claim 28, wherein the predetermined value and the predetermined position of said remaining one or more bits of said resource allocation information that are not signaled in said field of said DCI exclude an allocation of one or more edge physical resource blocks (PRBs) useable by said communication system for physical uplink control channel (PUCCH) transmissions.

30. The method according to claim 27, wherein a re-interpretation of said resource allocation information of said terminal is applied to change the RBs or resource block groups (RBGs) or the combinations thereof that are assignable to said terminal.

31. The method according to claim 30, wherein the re-interpretation scheme comprises at least one of:

a mirroring from low RB or RBG indices to high RB or RBG indices, respectively, and vice versa, and

a shift of the signaled resource allocation information by a predetermined offset wherein the offset is defined as a number of RBs or RBGs.

32. The method according to claim 30, wherein the re-interpretation scheme is at least one of:

configured by a base station, and

signaled by said base station to said terminal.

33. A method of receiving resource allocation information for assigning uplink resources to a terminal of a 3GPP Long Term Evolution (LTE) or 3GPP LTE-Advanced communication system, the method being performed by the terminal and comprising:

receiving downlink control information (DCI), wherein said downlink control information comprises a field for signaling said resource allocation information of said terminal, said field having a predetermined number of bits, said resource allocation information representing resource block groups (RBGs) according to a multi-cluster resource allocation in said 3GPP LTE or 3GPP LTE-A communication system;

wherein

the bit size of said field of said DCI for signaling said resource allocation information is sufficient to represent a plurality of possible uplink resource allocations by;

determining the RBG size for a given number of uplink resource blocks according to;

34. A terminal for receiving resource allocation information for assigning resources to said terminal within a mobile communication system, said terminal comprises:

a receiver configured to receive downlink control information (DCI), wherein said downlink control information comprises a field for indicating said resource allocation information of said terminal, said field having a predetermined number of bits; and

a controller configured to determine said resource allocation information from said bits of said field in the received DCI;

wherein

said predetermined number of bits of said field in the received DCI is insufficient to represent the plurality of allowed resource allocations,

said bits of said field in the received DCI represent predetermined bits of said resource allocation information, and

all remaining one or more bits of said resource allocation information that are not included in said field of the received DCI are set to a predetermined value.