METHOD FOR TRANSMITTING AND RECEIVING SIGNAL ON BASIS OF DYNAMIC CHANGE IN WIRELESS RESOURCE IN WIRELESS COMMUNICATION SYSTEM TO WHICH CARRIER AGGREGATION SCHEME IS APPLIED, AND DEVICE THEREFORE

• US 20150023145A1
• Filed: 03/15/2013
• Published: 01/22/2015
• Est. Priority Date: 03/20/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Myoungseob, Seo, Hanbyul, Kim, Hakseong, Lee, Seungmin
• Granted Patent: US 9,806,875 B2
• Time in Patent Office: Days
• US Class Current: 370/201
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04J 11/0023 Interference mitigation or co-ordination direct sequence spread spectrum [DSSS] systems H04B1/7097; frequency hopping H04B1/713; allocation criteria for ingress interference avoidance H04L5/0062; frequency allocation criteria for requirements on out-of-channel emissions H04L5/0066; arrangements for removing intersymbol interference or baseband equalisers H04L25/03006; peak power aspects in multicarrier modulation H04L27/2614; power management H04W52/00; traffic scheduling H04W72/54, H04W72/541
• CPC Class Codes: H04J 3/10 Arrangements for reducing cross-talk between channels
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• 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 5/0066 Requirements on out-of-channel emissions
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 5/1438 Negotiation of transmission parameters prior to communication modified according to link quality H04L1/0001
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method for transmitting and receiving a signal by a terminal a wireless communication system is disclosed in the present invention. More particularly, the method comprises the steps of: receiving an indicator for changing the usage of a specific subframe corresponding to a sub-component carrier from a network; determining whether near-end crosstalk between the sub-component carrier and another component carrier occurs if the usage of the subframe is changed according to the indicator; and transmitting and receiving a signal to and from the network through the sub-component carrier according to the changed usage if it is determined that the near-end crosstalk does not occur.

Claims

1-13. -13. (canceled)

14. A method for communicating with a base station at a user equipment (UE) in a Time Division Duplex (TDD) communication system, the method comprising:

configuring subframe configuration according to a first subframe configuration defining subframe usages for each of subframes included in one radio frame;

receiving a physical downlink control channel including control information for indicating a second subframe configuration;

setting the subframe configuration from the first subframe configuration to the second subframe configuration; and

communicating with a base station based on the set subframe configuration,

wherein a sounding reference signal (SRS) is scheduled to be transmitted in one or more subframes indicated as an uplink subframe by the first subframe configuration,

wherein the SRS is not transmitted to the base station in at least one subframe among the one or more subframes indicated as a downlink subframe by the second subframe configuration.

15. The method of claim 14, wherein information on the first subframe configuration is received via a system information message from the base station.

16. The method of claim 14, wherein a number of downlink subframes indicated by the second subframe configuration are greater than a number of downlink subframes indicated by the first subframe configuration.

17. The method of claim 14, wherein communicating with the base station comprising:

receiving a downlink assignment from the base station; and

receiving a physical downlink shard channel from the base station using the downlink assignment on the at least one subframe.

18. The method of claim 14, wherein the subframe usages comprise the downlink subframe, the uplink subframe and a special subframe.

19. A user equipment (UE) in a Time Division Duplex (TDD) communication system, the user equipment comprising:

a radio frequency module for transmitting and receiving signals with a base station; and

a processor for processing the signals,

wherein the processor configures subframe configuration according to a first subframe configuration defining subframe usages for each of subframes included in one radio frame and sets the subframe configuration from the first subframe configuration to a second subframe configuration included in control information received via a physical downlink control channel,

wherein a sounding reference signal (SRS) is scheduled to be transmitted in one or more subframes indicated as an uplink subframe by the first subframe configuration,

wherein the SRS is not transmitted to the base station in at least one subframe among the one or more subframes indicated as a downlink subframe by the second subframe configuration.

20. The UE of claim 19, wherein information on the first subframe configuration is received via a system information message from the base station.

21. The UE of claim 19, wherein a number of downlink subframes indicated by the second subframe configuration are greater than a number of downlink subframes indicated by the first subframe configuration.

22. The UE of claim 19, wherein the processor controls the radio frequency module to receive a downlink assignment from the base station and receive a physical downlink shard channel from the base station using the downlink assignment on the at least one subframe.

23. The UE of claim 19, wherein the subframe usages comprise the downlink subframe, the uplink subframe and a special subframe.