Method and device for uplink resource allocation

• US 10,368,341 B2
• Filed: 05/24/2017
• Issued: 07/30/2019
• Est. Priority Date: 09/14/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Suckchel, Kim, Mingyu, Ahn, Joonkui, Seo, Dongyoun
• Primary Examiner(s): Sefcheck, Gregory B
• Application Number:
  US15/603,937
• Publication Number:
  US 20170347354A1
• Time in Patent Office: 797 Days
• Field of Search: None
• CPC Class Codes: H04L 27/2636 with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• 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 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A method for transmitting an uplink signal by a device in a wireless communication system, the method includes receiving a downlink control channel (DCI) format defined for uplink (UL) multi-antenna transmission mode, the DCI format including a resource allocation (RA) field; and transmitting an uplink signal using the RA field, wherein a size of the RA field is represented by the following expression: MAX (RASizeA, RASizeB), wherein RASizeA is a first number of bits required for representing a resource indication value (RIV) corresponding to a starting resource block (RB) and a length of contiguously allocated RBs within a given uplink bandwidth, and wherein RASizeB is a second number of bits required for representing a combinatorial index r corresponding to 4 indexes, and the 4 indexes are used to indicate a start resource block group (RBG) index and an end RBG index of a first RB set and a start RBG index and an end RBG index of a second RB set within the given uplink bandwidth.

Claims

1. A method for transmitting an uplink signal by a device in a wireless communication system, the method comprising:

receiving a downlink control channel (DCI) format defined for an uplink (UL) multi-antenna transmission mode, the DCI format including a resource allocation (RA) field; and

transmitting an uplink signal using the RA field,

wherein a size of the RA field is represented by the following expression;

MAX(RASizeA,RASizeB),

wherein RASizeA is a first number of bits required for representing a resource indication value (RIV) corresponding to a starting resource block (RB) and a length of contiguously allocated RBs within a given uplink bandwidth,

wherein RASizeB is a second number of bits required for representing a combinatorial index r corresponding to 4 indexes, and the 4 indexes are used to indicate a start resource block group (RBG) index and an end RBG index of a first RB set and a start RBG index and an end RBG index of a second RB set within the given uplink bandwidth, and

wherein RASizeA is determined based on N_RB^UL(N_RB^UL+1)/2, RASizeB is determined based on

2. The method of claim 1, wherein RASizeA is ┌

log₂(N_RB^UL(N_RB^UL+1)/2┐

, and RASizeB is

3. The method of claim 2, wherein a value of P is given by the following table:

4. The method of claim 1, wherein the combinatorial index r is given by the following expression:

5. The method of claim 1, wherein if RASizeA >

RASizeB, the combinatorial index r is included in a Least Significant Part (LSB) part of the RA field.

6. The method of claim 1, wherein the DCI format is transmitted through a Physical Downlink Control Channel (PDCCH), and the uplink signal is transmitted through a Physical Uplink Shared Channel (PUSCH).

7. The method of claim 1, wherein RASizeA is used for a first RA type and the first RA type indicates to a scheduled user equipment (UE) a set of contiguously allocated virtual resource block (VRB) indices.

8. The method of claim 1, wherein RASizeB is used for a second RA type, and each of the first and second RB sets includes consecutive RBGs, each of the RBGs having a size P.

9. A device for use in a wireless communication system, the device comprising:

a memory configured to store data; and

a processor,

wherein the processor is operatively coupled to the memory and configured to;

receive a downlink control channel (DCI) format defined for an uplink (UL) multi-antenna transmission mode, the DCI format including a resource allocation (RA) field, and

transmit an uplink signal using the RA field,

wherein a size of the RA field is represented by the following expression;

Max(RASizeA,RASizeB),

wherein RASizeA is a first number of bits required for representing a resource indication value (RIV) corresponding to a starting resource block (RB) and a length of contiguously allocated RBs within a given uplink bandwidth,

wherein RASizeB is a second number of bits required for representing a combinatorial index r corresponding to 4 indexes, and the 4 indexes are used to indicate a start resource block group (RBG) index and an end RBG index of a first RB set and a start RBG index and an end RBG index of a second RB set within the given uplink bandwidth, and

wherein RASizeA is determined based on N_RB^UL(N_RB^UL+1)/2, RASizeB is determined based on

10. The device of claim 9, wherein RASizeA is ┌

log₂(N_RB^UL(N_RB^UL+1)/2┐

, and RASizeB is

11. The device of claim 10, wherein a value of P is given by the following table:

12. The device of claim 9, wherein the combinatorial index r is given by the following expression:

13. The device of claim 9, wherein if RASizeA >

RASizeB, the combinatorial index r is included in a Least Significant Part (LSB) part of the RA field.

14. The device of claim 9, wherein the DCI format is transmitted through a Physical Downlink Control Channel (PDCCH), and the uplink signal is transmitted through a Physical Uplink Shared Channel (PUSCH).

15. The device of claim 9, wherein RASizeA is used for a first RA type and the first RA type indicates to a scheduled user equipment (UE) a set of the contiguously allocated virtual resource block (VRB) indices.

16. The device of claim 9, wherein RASizeB is used for a second RA type, and each of the first and second RB sets includes consecutive RBGs, each of the RBGs having a size P.

17. The device of claim 9, further comprising:

a transceiver,

wherein the processor receives the DCI format using the transceiver.