Method for communicating with relay station

• US 8,787,269 B2
• Filed: 11/12/2008
• Issued: 07/22/2014
• Est. Priority Date: 11/21/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kwon, Yeong Hyeon, Noh, Min Seok, Moon, Sung Ho, Kim, Dong Cheol, Kwak, Jin Sam, Lee, Hyun Woo, Han, Seung Hee
• Primary Examiner(s): Elliott, IV, Benjamin H
• Application Number:
  US12/738,122
• Publication Number:
  US 20100220645A1
• Time in Patent Office: 2,078 Days
• Field of Search: 370/206, 370/208, 370/279, 370/282, 370/293, 370/315, 370/328, 370/329, 370/332, 370/236, 370/278, 455 7- 25, 455/69, 455/88, 4551151-1154
• US Class Current: 370/329
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 84/047 using dedicated repeater stations

Abstract

A method for communicating with a relay station is disclosed. The method for communicating with a relay station comprises transmitting resource allocation information of downlink traffic and uplink traffic from a base station to the relay; and transmitting the downlink traffic to the relay by encapsulating the downlink traffic in accordance with the resource allocation information and receiving encapsulated uplink traffic from the relay in accordance with the resource allocation information. It is possible to enable efficient communication through a relay using a minimum interface without deterioration of throughput even in the case that a base station does not know detailed attributes of a relay existing in a system. Also, it is possible to coordinate collision through a master relay in case of a system supporting multi-hop relays.

Claims

1. A method for communicating with a master relay station, in which a base station allocates a resource to perform communication, the method comprising:

transmitting, from the base station to the master relay station, resource allocation information of downlink traffic and uplink traffic for use of communication between the base station and the master relay station;

transmitting, from the base station to the master relay station, dedicated resource allocation information for use of communication among a plurality of relay stations and a plurality of mobile stations; and

transmitting the downlink traffic from the base station to the master relay station by encapsulating the downlink traffic in accordance with the resource allocation information, and receiving encapsulated uplink traffic from the master relay station in accordance with the resource allocation information,

wherein a dedicated resource indicated by the dedicated resource allocation information is reallocated by the master relay station for the plurality of relay stations and the plurality of mobile stations.

2. The method of claim 1, wherein the encapsulated downlink traffic includes control information, traffic information, and allocation information of the traffic information, which are to be transferred from the master relay station to the plurality of mobile stations, within one traffic structure.

3. The method of claim 1, wherein the encapsulated uplink traffic includes control information, traffic information, and allocation information of the traffic information, which are received from the plurality of mobile stations at the master relay station, within one traffic structure.

4. The method of claim 1, wherein the step of transmitting the downlink traffic to the master relay station includes:

transmitting handover information of one or more mobile stations from the base station to the master relay station.

5. The method of claim 1, wherein the step of transmitting the downlink traffic to the master relay station includes:

transmitting paging information of one or more mobile stations from the base station to the master relay station.

6. The method of claim 1, wherein the step of transmitting the downlink traffic to the master relay station includes:

transmitting control signals of one or more mobile stations from the base station to the master relay station.

7. The method of claim 1, wherein the step of receiving encapsulated uplink traffic from the master relay, station includes:

receiving at least one control signal of communication quality measurement value, scheduling request, handover request and ranging request measured by one or more mobile stations and collected by the master relay, station.

8. A method for communicating with a master relay station, in which the master relay station communicates with a base station, the method comprising:

receiving, at the master relay station from the base station, resource allocation information of downlink traffic and uplink traffic for use of communication between the base station and the master relay station;

receiving, at the master relay station from the base station, dedicated resource allocation information for use of communication among a plurality of relay stations and a plurality of mobile stations;

reallocating, at the master relay station, a dedicated resource indicated by the dedicated resource allocation information for the plurality of relay stations and the plurality of mobile stations; and

receiving, at the master relay station, encapsulated downlink traffic from the base station in accordance with the resource allocation information and transferring the encapsulated downlink traffic to corresponding mobile stations, and transferring uplink traffic received from the mobile stations to the base station by encapsulating the uplink traffic in accordance with the resource allocation information.

9. The method of claim 8, wherein the encapsulated downlink traffic includes traffic information and allocation information of the traffic information, which are to be transferred from the master relay station to the plurality of mobile stations, within one traffic structure.

10. The method of claim 8, wherein the encapsulated uplink traffic includes traffic information and allocation information of the traffic information, which are received from the plurality of mobile stations at the master relay station, within one traffic structure.