Method for channel allocating in wireless access system

• US 9,374,208 B2
• Filed: 03/16/2009
• Issued: 06/21/2016
• Est. Priority Date: 03/14/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Moon Il, Kim, So Yeon, Chung, Jae Hoon, Ko, Hyun Soo, Han, Seung Hee
• Primary Examiner(s): Nawaz, Asad
• Assistant Examiner(s): HARLEY, JASON A
• Application Number:
  US12/922,595
• Publication Number:
  US 20110013581A1
• Time in Patent Office: 2,654 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 25/03343 Arrangements at the transmitter end
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method for allocating uplink and downlink physical channels to improve throughput of a wireless access system is disclosed. A method for allocating channels to optimize a wireless access system which supports radio frequencies comprises configuring one or more physical channels in a transmitter; allocating first physical channels to a receiver considering features of the one or more physical channels; and transmitting one or more control channels to the receiver through a predetermined physical channel of the first physical channels, the control channels including configuration information of the first physical channels allocated to the receiver.

Claims

1. A method for receiving downlink data in a wireless access system which supports multi-radio frequency bands, the method comprising:

receiving, by a user equipment (UE) from a base station (BS), a physical downlink control channel (PDCCH) on a primary frequency band, the PDCCH including;

control information associated with a scheduled frequency band on which the downlink data is to be transmitted; and

an indication indicating the scheduled frequency band among the multi-radio frequency bands, the multi-radio frequency bands comprising a plurality of PDCCHs indicating which physical channel is indicated by each PDCCH; and

receiving, by the UE from the BS, the downlink data through the scheduled frequency band that is indicated by the indication and is included in the multi-radio frequency band, wherein;

if the downlink data is a voice over internet protocol (VoIP) data, the scheduled frequency band is only the primary frequency band, and

if the downlink data is not a VoIP data, the downlink data is received through the scheduled frequency band indicated by the indication, wherein each of frequency bands included in the multi-radio frequency band has a center frequency, and wherein each of the frequency bands is configured with plurality of physical channels.

2. The method according to claim 1, wherein a maximum number of the frequency band which is allocated to the UE is determined according to a level of the UE.

3. The method according to claim 2, wherein the level of the UE is classified by ability of the UE that controlling a number of frequency bands simultaneously.

4. The method according to claim 1, wherein the primary frequency band and the scheduled frequency band are component carriers.

5. The method according to claim 1, further comprising transmitting a physical uplink control channel (PUCCH) comprising control information only on the primary frequency band.

12. The method according to claim 1, further comprising receiving, by the UE from the BS, location information indicating the primary frequency band among the multi-radio frequency bands.

6. An user equipment (UE) for receiving downlink data in a wireless access system which supports multi-radio frequency bands, the UE comprising:

a processor for supporting the reception of the downlink data through the multi-radio frequency band; and

reception antennas, wherein the processor is configured to;

receive, from a base station (BS), a physical downlink control channel (PDCCH) only on a primary frequency band by using the reception antennas, the PDCCH including;

control information associated with a scheduled frequency band on which the downlink data is transmitted; and

an indication indicating the scheduled frequency band among the multi-radio frequency bands, the multi-radio frequency bands comprising a plurality of PDCCHs indicating which physical channel is indicated by each PDCCH, and receive, from the BS, voice over internet protocol (VoIP) the downlink data through the scheduled frequency band that is indicated by the indication and is included in the multi-radio frequency band by using the reception antennas, wherein;

if the downlink data is a voice over internet protocol (VoIP) data, the scheduled frequency band is only the primary frequency band, and if the downlink data is not a VoIP data, the downlink data is received through the scheduled frequency band indicated by the indication,

wherein each of frequency bands included in the multi-radio frequency band has a center frequency, and wherein each of the frequency bands is configured with plurality of physical channels.

7. The user equipment according to claim 6, wherein a maximum number of the frequency band which is allocated to the UE is determined according to a level of the UE.

8. The user equipment according to claim 7, wherein the level of the UE is classified by an ability of the UE to control a number of frequency bands simultaneously.

9. The user equipment according to claim 6, wherein the primary frequency band and the scheduled frequency band are component carriers.

10. The user equipment according to claim 6, wherein the UE is further configured to transmit a physical uplink control channel (PUCCH) comprising control information only on the primary frequency band.

11. The user equipment according to claim 6, wherein the processor is further configured to receive location information indicating the primary frequency band among the multi-radio frequency bands, by using the reception antennas.