Uplink Transmissions for Type 2 Relay

• US 20100322143A1
• Filed: 06/16/2010
• Published: 12/23/2010
• Est. Priority Date: 06/19/2009
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Research In Motion Limited (Blackberry Limited)
• Inventors: Earnshaw, Andrew Mark, Womack, James Earl, Vrzic, Sophie, Song, Yi, Yu, Yi, Fong, Mo-Han, Cai, Zhijun, Bontu, Chandra S.
• Granted Patent: US 9,185,744 B2
• Time in Patent Office: Days
• US Class Current: 370/315
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1816 with retransmission of the same, encoded, message
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/0097 Relays
• CPC Class Codes: H04W 40/22 using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A method for providing user agent data. The method includes an access node receiving an indicator sent from a relay node as an indication that the relay node has received data from the user agent.

Claims

1. A method for providing user agent (UA) data, comprising:

receiving the UA data at a relay node; and

sending the UA data to an access node when an acknowledgement (ACK) message has not been received from the access node, the ACK message indicating that the access node has received the UA data.

2. The method of claim 1, further comprising:

receiving the UA data at a relay node; and

not sending the UA data to the access node when the ACK message has been received from the access node.

3. The method of claim 1, wherein the relay node and the UA send the data to the access node simultaneously using the same resource and the same modulation and coding scheme.

4. The method of claim 1, wherein the relay node continues to send the data to the access node until the relay node receives an ACK from the access node.

5. The method of claim 1, wherein, when the access node transmits a negative acknowledgement (NACK) message indicating that the access node has not received the data, the UA retransmits the data.

6. A relay node in a wireless telecommunications system, comprising:

a component configured to receive a user agent (UA) data and send the UA data to an access node when an acknowledgement (ACK) message has not been received from the access node, the ACK message indicating that the access node has received the UA data.

7. The relay node of claim 6 wherein, the component is further configured to receive the UA data and not send the UA data to the access node when the ACK message has been received from the access node.

8. The relay node of claim 6, wherein the relay node and the UA send the data to the access node simultaneously using the same resource and the same modulation and coding scheme.

9. The relay node of claim 6, wherein the relay node continues to send the data to the access node until the relay node receives an ACK from the access node.

10. The relay node of claim 6, wherein, when the access node transmits a negative acknowledgement (NACK) message indicating that the access node has not received the data, the UA retransmits the data.

11. A method for providing user agent (UA) data, comprising:

an access node receiving an indicator sent from a relay node as an indication that the relay node has received data from the UA.

12. The method of claim 11, wherein the access node sends an acknowledgement (ACK) message to the UA.

13. The method of claim 11, wherein, when the access node receives the data from the UA, the access node instructs the relay node to discard the data.

14. The method of claim 12, wherein, when the access node sends the ACK message to the UA, the relay node discards the data after detecting the ACK.

15. The method of claim 11, wherein, when the access node does not receive the data from the UA, the access node instructs the relay node to transmit the data.

16. An access node in a wireless telecommunications system, comprising:

a component configured such that the access node receives from a relay node an indication that the relay node has received data from a user agent (UA).

17. The access node of claim 16, wherein, upon receiving the indication, the access node sends an acknowledgement (ACK) message to the UA.

18. The access node of claim 16, wherein, when the access node receives the data from the UA, the access node instructs the relay node to discard the data.

19. The access node of claim 16, wherein, when the access node does not receive the data from the UA, the access node instructs the relay node to transmit the data.

20. A relay node in a wireless telecommunications system, comprising:

a component configured such that the relay node transmits to an access node an indication that the relay node has received data from a user agent (UA).

21. The relay node of claim 20, wherein, upon receiving the indication, the access node sends an acknowledgement (ACK) message to the UA.

22. The relay node of claim 20, wherein the relay node discards the data upon receiving an instruction from the access node to discard the data.

23. The relay node of claim 20, wherein the relay node transmits the data upon receiving an instruction from the access node to transmit the data.