Method and apparatus for performing power control by terminal in wireless communication system using multiple carriers

• US 9,736,880 B2
• Filed: 12/29/2015
• Issued: 08/15/2017
• Est. Priority Date: 11/15/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kwon, Yeong Hyeon, Kim, So Yeon, Moon, Sung Ho, Chung, Jae Hoon, Han, Seung Hee
• Primary Examiner(s): Kizou, Hassan
• Assistant Examiner(s): BHATTI, HASHIM S
• Application Number:
  US14/983,100
• Publication Number:
  US 20160135091A1
• Time in Patent Office: 595 Days
• Field of Search: None
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/44 in connection with interruption of transmission
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method of activating or deactivating frequency resources at a terminal configured with a primary frequency resource and one or more non-primary frequency resources in a wireless communication system, and the terminal are discussed. The method according to one embodiment includes receiving a medium access control (MAC) signal for activating the one or more non-primary frequency resources; activating the one or more non-primary frequency resources; and deactivating the one or more non-primary frequency resources on expiry of a specific time period configured by radio resource control (RRC) signaling, the specific time period being for which of the one or more non-primary frequency resources are activated.

Claims

1. A method of activating or deactivating frequency resources at a terminal configured with a primary frequency resource and one or more non-primary frequency resources in a wireless communication system, the method comprising:

receiving, by the terminal, a medium access control (MAC) signal for activating the one or more non-primary frequency resources indicated by a carrier indicator included in a downlink control channel carried by the primary frequency resource;

activating, by the terminal, the one or more non-primary frequency resources; and

deactivating, by the terminal, the one or more non-primary frequency resources on expiry of a specific time period configured by radio resource control (RRC) signaling, the specific time period being for which of the one or more non-primary frequency resources are activated,

wherein the terminal is configured to receive no downlink signal on the deactivated one or more non-primary frequency resources,

wherein the specific time period has a length determined based on an amount of traffic which the terminal has to receive when the terminal receives a downlink signal on the one or more non-primary frequency resources, and

the specific time period has a length determined based on an amount of traffic which the terminal has to transmit when the terminal transmits an uplink signal on the one or more non-primary frequency resources.

2. The method of claim 1, wherein the specific time period is independent of a discontinuous reception (DRX) related operation.

3. The method of claim 1, wherein the primary frequency resource includes a primary component carrier, and the one or more non-primary frequency resources include one or more non-primary component carriers.

4. The method of claim 1, wherein the specific time period is configured per non-primary frequency resource.

5. A terminal for activating or deactivating frequency resources in a wireless communication system, the terminal being configured with a primary frequency resource and one or more non-primary frequency resources, the terminal comprising:

a radio frequency (RF) module; and

a processor configured to;

receive a medium access control (MAC) signal for activating the one or more non-primary frequency resources indicated by a carrier indicator included in a downlink control channel carried by the primary frequency resource,

activate the one or more non-primary frequency resources, and

deactivate the one or more non-primary frequency resources on expiry of a specific time period configured by radio resource control (RRC) signaling, the specific time period being for which of the one or more non-primary frequency resources are activated,

wherein the terminal is configured to receive no downlink signal on the deactivated one or more non-primary frequency resources,

wherein the specific time period has a length determined based on an amount of traffic which the terminal has to receive when the terminal receives a downlink signal on the one or more non-primary frequency resources, and

the specific time period has a length determined based on an amount of traffic which the terminal has to transmit when the terminal transmits an uplink signal on the one or more non-primary frequency resources.

6. The terminal of claim 5, wherein the specific time period is independent of discontinuous reception (DRX) related operation.

7. The terminal of claim 5, wherein the primary frequency resource includes a primary component carrier, and the one or more non-primary frequency resources include one or more non-primary component carriers.

8. The terminal of claim 5, wherein the specific time period is configured per non-primary frequency resource.