Method of resource block (RB) bundling

• US 9,629,167 B2
• Filed: 12/08/2015
• Issued: 04/18/2017
• Est. Priority Date: 11/06/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Roh, Dongwook, Lee, Daewon, Kim, Bonghoe, Noh, Yujin, Kang, Byeongwoo
• Primary Examiner(s): RENNER, BRANDON M
• Application Number:
  US14/962,780
• Publication Number:
  US 20160095127A1
• Time in Patent Office: 497 Days
• Field of Search: None
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04B 7/0634 Antenna weights or vector/matrix coefficients
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 1/0059 Convolutional codes
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 25/0232 by interpolation between sounding signals
• 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 27/26526 with inverse FFT [IFFT] or inverse DFT [IDFT] demodulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] receiver or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/00 : Local resource management
• CPC Class Codes: H04W 72/04 : Wireless resource allocation
• CPC Class Codes: H04W 72/044 : based on the type of the allocated resource
• CPC Class Codes: H04W 72/52 : based on load
• CPC Class Codes: H04W 72/53 : based on regulatory allocation policies

Abstract

A method of sizing bundled resource blocks (RBs) having at least one user equipment (UE)-specific demodulation reference signal in an orthogonal frequency division multiplexing (OFDM) system is disclosed. According to one embodiment, the method includes: receiving configuration information related to at least one UE-specific demodulation reference signal; receiving a plurality of resource blocks (RBs) from a network, wherein the plurality of resource blocks comprises the at least one UE-specific demodulation reference signal, at least one cell-specific demodulation reference signal or data, wherein a number of the plurality of RBs is dependent on a size of a system bandwidth, the size of the system bandwidth corresponding to one of four size ranges; and processing at least one of the received plurality of RBs by bundling the plurality of RBs into RB bundles, wherein the size of each RB bundle is based on the one of the four size ranges.

Claims

1. A method of evaluating information related to a channel state by a user equipment (UE) in a wireless communication system, the method comprising:

evaluating information related to a channel state based on a size of resource block group (RBG) corresponding to a system bandwidth when the size of RBG is in a unit of resource block (RB) and the RB includes UE-specific reference signals,

wherein the size of RBG is configured for evaluating the information related to the channel state as shown in Table A,

wherein;

if the system bandwidth is smaller than or equal to 10 RBs, the information related to the channel state is evaluated in unit of 1 RB,

if the system bandwidth is between 11 RBs and 26 RBs, the information related to the channel state is evaluated in unit of 2 RBs, and

if the system bandwidth is between 27 RBs and 63 RBs, the information related to the channel state is evaluated in unit of 3 RBs,

2. The method of claim 1, wherein:

if the system bandwidth is between 64 RBs and 110 RBs, the information related to the channel state is evaluated in units of RB(s) smaller than 4 RBs.

3. The method of claim 1, wherein a plurality of resource blocks (RBs) of the RBG are contiguous in a frequency domain.

4. The method of claim 1, wherein the information related to the channel state comprises a precoding matrix indicator (PMI) or a rank indicator (RI).

5. A user equipment for evaluating information related to a channel state in a wireless communication system, the user equipment comprising:

a processor configured to evaluate information related to a channel state based on a size of resource block group (RBG) corresponding to a system bandwidth when the size of RBG is in a unit of resource block (RB) and the RB includes UE-specific reference signals,

wherein the size of RBG is configured for evaluating the information related to the channel state as shown in Table A,

wherein the processor is further configured to;

if the system bandwidth is smaller than or equal to 10 RBs, evaluate the information related to the channel state in unit of 1 RB,

if the system bandwidth is between 11 RBs and 26 RBs, evaluate the information related to the channel state in unit of 2 RBs, and

if the system bandwidth is between 27 RBs and 63 RBs, evaluate the information related to the channel state in unit of 3 RBs, and

6. The user equipment of claim 5, wherein the processor is further configured to:

if the system bandwidth is between 64 RBs and 110 RBs, evaluate the information related to the channel state in units of RB(s) smaller than 4 RBs.

7. The user equipment of claim 5, wherein a plurality of resource blocks (RBs) of the RBG are contiguous in a frequency domain.

8. The user equipment of claim 5, wherein the information related to the channel state comprises a precoding matrix indicator (PMI) or a rank indicator (RI).