Method and device for uplink resource allocation

• US 9,706,535 B2
• Filed: 09/14/2015
• Issued: 07/11/2017
• Est. Priority Date: 09/14/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Mingyu, Ahn, Joonkui, Seo, Dongyoun, Yang, Suckchel
• Primary Examiner(s): SEFCHECK, GREGORY B
• Application Number:
  US14/853,722
• Publication Number:
  US 20160007343A1
• Time in Patent Office: 666 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 receiving an uplink signal in a wireless communication system, and a device therefore. The method according to one embodiment includes transmitting a control channel signal including a resource allocation (RA) field; and receiving an uplink signal. A size of the RA field is represented by an expression including RASizeA and RASizeB. 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. RASizeB is a second number of bits required for representing a combinatorial index r corresponding to 4 indexes 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 receiving an uplink signal by a device in a wireless communication system, the method comprising:

transmitting a control channel signal including a resource allocation (RA) field so as to signal resource allocation for the uplink signal; and

receiving the uplink signal according to the control channel signal,

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 determined using N_RB^UL (N_RB^UL+1)/2,

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 determined using

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 control channel signal is a Physical Downlink Control Channel (PDCCH) signal, and the uplink signal is a Physical Uplink Shared Channel (PUSCH) signal.

7. The method of claim 1, wherein each of the first and second RB sets include consecutive RBGs, and each of the RBGs has a size P.

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

a radio frequency (RF) unit; and

a processor,

wherein the processor is operatively coupled to the RE unit and configured to;

transmit a control channel signal including a resource allocation (RA) field so as to signal resource allocation for the uplink signal, and

receive the uplink signal according to the control channel signal,

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 determined using N_RB^UL(N_RB^UL+1)/2,

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 determined using

9. The device of claim 8, wherein RASizeA is ┌

log₂ (N_RB^UL (N_RB^UL+1)/2)┐

, and RASizeB is

10. The device of claim 9, wherein a value of P is given by the following table:

11. The device of claim 8, wherein the combinatorial index r is given by the following expression:

12. The device of claim 8, wherein if RASizeA>

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

13. The device of claim 8, wherein the control channel signal is a Physical Downlink Control Channel (PDCCH) signal, and the uplink signal is a Physical Uplink Shared Channel (PUSCH) signal.

14. The device of claim 8, wherein each of the first and second RB sets include consecutive RBGs, and each of the RBGs has a size P.