METHOD OF EFFECTIVEY USING RADIO RESOURCE IN RELAY NODE OF A WIRELESS COMMUNICATION SYSTEM

• US 20120033606A1
• Filed: 04/20/2010
• Published: 02/09/2012
• Est. Priority Date: 04/21/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung-Duck, Jung, Sung-Hoon, Park, Sung-Jun, Yi, Seun-June
• Granted Patent: US 8,830,900 B2
• Time in Patent Office: Days
• US Class Current: 370/315
• CPC Class Codes: H04B 7/15528 Control of operation parameters of a relay station to exploit the physical medium
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

The present invention relates to a wireless communication system and user equipment providing wireless communication services, and a method of transmitting and receiving data between a terminal and a base station in an evolved Universal Mobile Telecommunications System (UMTS) that has evolved from a Universal Mobile Telecommunications System (UMTS), a Long Term Evolution (LTE) system, or a LTE-A (LTE-Advanced) system and more particularly, to a method of effectively using radio resource(s) in relay node., and it may be an object of the present invention is to provide an improved method of maintaining a Quality of Service (QoS) and of managing a memory and buffer in a LTE-A system in order to effectively utilize the radio resource(s).

Claims

1. A method for data transmission by a relay node (RN) in a wireless communication system, the method comprising:

receiving, by the relay node, data from a plurality of user equipments (UEs);

generating, by the relay node, at least one parameter to improve a transmission of the received data to a network; and

transmitting the data and the at least one generated parameter to the network.

2. The method of claim 1, wherein the at least one parameter indicates a total number of UE or radio bearer that should receive the data transmission.

3. The method of claim 1, wherein the at least one parameter is related to bit rate information of the data transmission.

4. The method of claim 3, wherein the bit rate information of the data transmission is at least one of a maximum bit rate, a guaranteed bit rate, and a minimum bit rate for the data transmission.

5. The method of claim 1, wherein the at least one parameter is related to time information of the data transmission.

6. The method of claim 5, wherein the time information is a maximum transmission delay time.

7. The method of claim 1, wherein the at least one parameter is related to a buffer capability or memory information of the relay node.

8. The method of claim 1, wherein a buffer status reports (BSR) is further transmitted to the network for transmission of the at least one generated parameter.

9. The method of claim 1, wherein the at least one generated parameter is transmitted to the network using at least one of a MAC control element, a protocol layer, and D-SR (Dedicated-SR) channel.

10. The method of claim 1, wherein at least one of QoS information, UE information, priority information, data generation time information, and data transmission left time information, is transmitted to the network with the at least one generated parameter.

11. The method of claim 1, wherein the network is a Doner eNB (DeNB).

12. The method of claim 1, wherein the all steps can be applied in a LTE-A (LTE-advanced) system.