METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SIGNAL IN WIRELESS ACCESS SYSTEM WHICH SUPPORTS FDR TRANSMISSION

• US 20160099802A1
• Filed: 06/11/2014
• Published: 04/07/2016
• Est. Priority Date: 06/11/2013
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: NOH, Kwangseok, KIM, Jinmin, CHOI, Kukheon, CHUNG, Jaehoon, KIM, Kitae
• Granted Patent: US 9,847,866 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/26 at least one of which is mobile
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention relates a wireless access system which supports a full duplex radio (FDR) transmission environment. A method for receiving a signal from a base station by a terminal in the wireless access system which supports FDR transmission according to an embodiment of the present invention comprises the steps of: receiving, from the base station, reference signal mode information indicating resources by which a reference signal is transmitted, from among reference signal available resources by which the reference signal can be transmitted; receiving, from the base station, additional resource mode information indicating additional data resources by which a terminal can simultaneously transmit data, from among the resources by which the reference signal is transmitted; and transmitting the data using the additional resource mode information simultaneously while receiving the reference signal using the reference signal mode information.

Claims

1. A method for receiving a signal from a Base Station (BS) by a User Equipment (UE) in a wireless access system supporting Full Duplex Radio (FDR) transmission, the method comprising:

receiving reference signal mode information indicating resources on which a reference signal is transmitted among available reference signal resources on which the reference signal is capable of being transmitted from the BS;

receiving additional resource mode information indicating additional data resources on which the UE is capable of transmitting data among the resources on which the reference signal is transmitted; and

receiving the reference signal using the reference signal mode information and simultaneously transmitting the data using the additional resource mode information.

2. The method according to claim 1,

wherein the reference signal mode information includes information indicating any one of:

a first mode for allocating the reference signal to all of the available reference signal resources;

a second mode for allocating the reference signal to part of the available reference signal resources;

a third mode for allocating the reference signal to resources except for resources for the second mode among the available reference signal resources; and

a fourth mode for not allocating the reference signal to all of the available reference signal resources.

3. The method according to claim 1,

wherein the additional resource mode information includes information indicating any one of:

a first mode for not allocating the additional data resources to all of the available reference signal resources;

a second mode for allocating the additional data resources to part of the available reference signal resources;

a third mode for allocating the additional data resources to resources except for resources for the second mode among the available reference signal resources; and

a fourth mode for allocating the additional data resources to all of the available reference signal resources.

4. The method according to claim 1,

wherein the sum of the resources on which the reference signal is transmitted according to the reference signal mode information and the additional data resources according to the additional resource mode information constitutes the available reference signal resources.

5. The method according to claim 1,

wherein the reference signal mode information is transmitted in every Transmit Time Interval (TTI).

6. The method according to claim 1,

wherein the reference signal mode information is transmitted in every Transmit Time Interval (TTI) of a reference value.

7. The method according to claim 1,

wherein the reference signal mode information is transmitted through a downlink control channel.

8. A User Equipment (UE) for receiving a signal from a Base Station (BS) in a wireless access system supporting Full Duplex Radio (FDR) transmission, the UE comprising:

a Radio Frequency (RF) unit; and

a processor,

wherein the processor is configured to

receive reference signal mode information indicating resources on which a reference signal is transmitted among available reference signal resources on which the reference signal is capable of being transmitted from the BS,

receive additional resource mode information indicating additional data resources on which the UE is capable of transmitting data among the resources on which the reference signal is transmitted, and

receive the reference signal using the reference signal mode information and simultaneously transmit the data using the additional resource mode information.

9. The UE according to claim 8,

wherein the reference signal mode information includes information indicating any one of:

a first mode for allocating the reference signal to all of the available reference signal resources;

a second mode for allocating the reference signal to part of the available reference signal resources;

a third mode for allocating the reference signal to resources except for resources for the second mode among the available reference signal resources; and

a fourth mode for not allocating the reference signal to all of the available reference signal resources.

10. The UE according to claim 8,

wherein the additional resource mode information includes information indicating any one of:

a first mode for not allocating the additional data resources to all of the available reference signal resources;

a second mode for allocating the additional data resources to part of the available reference signal resources;

a third mode for allocating the additional data resources to resources except for resources for the second mode among the available reference signal resources; and

a fourth mode for allocating the additional data resources to all of the available reference signal resources.

11. The UE according to claim 8,

wherein sum of the resources on which the reference signal is transmitted according to the reference signal mode information and the additional data resources according to the additional resource mode information constitutes the available reference signal resources.

12. The UE according to claim 8,

wherein the reference signal mode information is transmitted in every Transmit Time Interval (TTI).

13. The UE according to claim 8,

wherein the reference signal mode information is transmitted in every Transmit Time Interval (TTI) of a reference value.

14. The UE according to claim 8,

wherein the reference signal mode information is transmitted through a downlink control channel.