Apparatus and method for resource segmentation in wireless communication system

Patent metadata

Field	Value
Publication number	US-9621302-B2
Application number	US-80484810-A
Country	US
Kind code	B2
Filing date	Jul 30, 2010
Priority date	May 28, 2010
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

An apparatus and a method segment an allocated resource in data transmission in a wireless communication system. When a size of transmission data is large, the data information bit is distributed to one or more forward error correction (FEC) blocks with consideration of a size of the data information bit. A number of data tones is determined based on control information with respect to each of the one or more FEC blocks. The data information bit distributed to the one or more FEC blocks is mapped into a data tone with consideration of the number of data tones determined for each of the one or more FEC blocks.

First claim

What is claimed is:

1. A method of a base station (BS) in a wireless communication system, the method comprising:
identifying, by the BS, a number of a plurality of data tones allocated to at least one data stream for multiple input multiple output (MIMO);
identifying, by the BS, a number of at least one encoding block for encoding the at least one data stream and a number of the at least one data stream;
determining, by the BS, a number of data tones to be allocated to each of the at least one encoding block based on the number of the plurality of data tones, the number of the at least one encoding block, and a value determined based on the number of the at least one data stream; and
transmitting the at least one data stream based on the determined number of data tones,
wherein the value is determined as a first value, if the number of the at least one data stream is 1, and is determined as a second value, if the number of the at least one data stream is greater than 1.

2. The method of claim 1 , wherein each of the at least one encoding block is a forward error correction (FEC) block.

3. The method of claim 1 , wherein determining the number of data tones to be allocated to each of the at least one encoding block comprising:
determining the number of data tones to be allocated to each of the at least one encoding block based on a following equation:

N

RE
,
k

=

K
RS

·

⌊

N
RE

K
RS

+

(

K
FB

-
k
-
1

)

K
FB

⌋

,

0
≤
k
≤

K
FB

where N RE denotes the identified number of the plurality of data tones, k denotes an index regarding each of the at least one encoding block, N RE,k denotes a number of data tones to be allocated to a k-th encoding block among the at least one encoding block, K FB denotes the number of the at least one encoding block, K RS denotes the value determined according to the number of the at least one data stream, wherein K RS =1 if the number of the at least one data stream is 1, and K RS =2 if the number of the at least one data stream is greater than 1.

4. The method of claim 1 , wherein the number of at least one encoding block is determined based on a size of the at least one data stream.

5. The method of claim 1 , further comprising:
generating encoded symbols regarding the at least one data stream by encoding bit sequences to be received from a higher layer; and
generating modulated symbols regarding the at least one data stream by modulating the encoded symbols.

6. The method of claim 5 , further comprising:
generating data by mapping the modulated symbols to a plurality of subcarriers, based on the number of data tones to be allocated to each of the at least one encoding block.

7. The method of claim 6 , further comprising:
generating orthogonal frequency division multiplexing (OFDM) symbols by modulating the data based on a OFDM scheme.

8. An apparatus of a base station (BS) in a wireless communication system, the apparatus comprising:
a resource mapping device configured to:
identify a number of a plurality of data tones allocated to at least one data stream for multiple input multiple output (MIMO);
identify a number of at least one encoding block for encoding the at least one data stream and a number of the at least one data stream; and
determine a number of data tones to be allocated to each of the at least one encoding block based on the number of the plurality of data tones, the number of the at least one encoding block, and a value determined based on the number of the at least one data stream; and
a transmitter configured to transmit the at least one data stream based on the determined number of data tones,
wherein the value is determined as a first value, if the number of the at least one data stream is 1, and is determined as a second value, if the number of the at least one data stream is greater than 1.

9. The apparatus of claim 8 , wherein each of the at least one encoding block is a forward error correction (FEC) block.

10. The apparatus of claim 8 , wherein the resource mapping device configured to determine the number of data tones to be allocated to each of the at least one encoding block based on a following equation:

N

RE
,
k

=

K
RS

·

⌊

N
RE

K
RS

+

(

K
FB

-
k
-
1

)

K
FB

⌋

,

0
≤
k
≤

K
FB

where N RE denotes the identified number of the plurality of data tones, k denotes an index regarding each of the at least one encoding block, N RE,k denotes a number of data tones to be allocated to a k-th encoding block among the at least one encoding block, K FB denotes the

Assignees

• Lim Chi-Woo
• Seol Ji-Yun
• Park Sung-Eun
• Samsung Electronics Co Ltd

Inventors

• Lim Chi-Woo
• Seol Ji-Yun
• Park Sung-Eun

Classifications

• H04L1/0041 Primary

  Arrangements at the transmitter end · CPC title