Method and apparatus for resource allocation for transmitting uplink data on a cooperative terminal in a wireless connection system supporting terminal client cooperation

Patent metadata

Field	Value
Publication number	US-9301282-B2
Application number	US-201114123724-A
Country	US
Kind code	B2
Filing date	Jul 13, 2011
Priority date	Jul 13, 2011
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

The present invention relates to a resource allocation method for transmitting uplink (UL) data on a cooperative terminal during a process of client cooperation (CC) between terminals, wherein the method comprises the steps of: executing the client cooperation between the cooperative terminal and a source terminal; transmitting, by the cooperative terminal to a base station, an uplink resource allocation request message for transmitting uplink data corresponding to the cooperative terminal; receiving, by the cooperative terminal, first uplink resource allocation information responding to the uplink resource allocation message from the base station; and transmitting, by the cooperative terminal to the base station, uplink data corresponding to the cooperative terminal, through the first uplink resource allocation information, wherein the uplink resource allocation request message includes control information in order to differentiate between uplink data corresponding to the source terminal and the uplink resource allocation request message.

First claim

What is claimed is:

1. A resource allocation method of a cooperative terminal for transmitting uplink (UL) data during a client cooperation (CC) transmission procedure, the method comprising:
performing the CC transmission with a source terminal;
transmitting an UL resource allocation request message to a base station (BS) for transmitting first UL data of the cooperative terminal, the first UL data generated during the CC transmission procedure;
receiving first UL resource allocation information from the BS as a response to the UL resource allocation request message; and
transmitting the first UL data to the BS according to the first UL resource allocation information,
wherein the UL resource allocation request message includes control information differentiating second UL data of the source terminal from the UL resource allocation request message,
wherein the UL resource allocation request message is transmitted according to second UL resource allocation information for transmitting the second UL data of the source terminal, and
wherein the UL resource allocation request message is transmitted by using paired MAC PDUs comprising a first MAC PDU including the control information and a second MAC PDU including the second UL data.

2. The method of claim 1 , wherein performing the CC transmission with the source terminal comprises:
receiving the second UL resource allocation information from the BS;
receiving UL data of the source terminal; and
transmitting the second UL data to the BS using the second uplink resource allocation information.

3. The method of claim 2 , further comprising:
receiving feedback channel information from the BS, the feedback channel information used for the CC transmission; and
transmitting the UL resource allocation request message by using the received feedback channel information.

4. The method of claim 2 , wherein the first UL resource allocation information is received by using the second UL resource allocation information.

5. The method of claim 2 , wherein the control information corresponds to a MAC signaling header that is configured as a 5-bit sequence.

6. The method of claim 5 , wherein the MAC signaling header includes a terminal identifier or station identifier (STID) of the cooperative terminal or an FID of the first UL.

7. The method of claim 6 , wherein the UL resource allocation request message comprises a MAC PDU having an FID corresponding to the CC transmission and a MAC PDU having an FID corresponding to the first UL data.

8. The method of claim 3 , wherein the feedback channel information corresponds to either a dedicated feedback channel allocated to each of the source terminal and the cooperative terminal or to a common feedback channel commonly allocated to the source terminal and the cooperative terminal.

9. The method of claim 8 , wherein:
the feedback channel information corresponds to the common feedback channel;
the cooperative terminal uses the common feedback channel via a feedback cycle comprising long time intervals.

10. The method of claim 3 , wherein the UL resource allocation request message is transmitted via an allocated dedicated feedback channel.

11. The method of claim 3 , wherein the UL resource allocation request message is 6 bits.

12. A cooperative terminal for allocating resources for transmitting uplink (UL) data during a Client Cooperation (CC) transmission procedure, the terminal comprising:
a radio frequency unit configured to transceive a radio signal; and
a processor configured to:
perform the client cooperation (CC) transmission with a source terminal;
transmit an uplink resource allocation request message to a base station (BS) for transmitting first UL data of the cooperative terminal, the first UL data generated during the CC transmission procedure;
receive first UL resource allocation information from the BS as a response to the UL resource allocation request message; and
transmit the first UL data to the BS according to the first UL resource allocation information,
wherein the UL resource allocation request message includes control information differentiating second UL data of the source terminal from the UL resource allocation request message,
wherein the UL resource allocation request message is transmitted according to second UL resource allocation information for transmitting the second UL data of the source terminal, and
wherein the UL resource allocation request message is transmitted by using paired MAC PDUs comprising a first MAC PDU including the control information and a second MAC PDU including the second UL data.

Assignees

• Lim Dongguk
• Cho Hangyu
• Lg Electronics Inc

Inventors

• Lim Dongguk
• Cho Hangyu

Classifications

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04L5/0035

  Resource allocation in a cooperative multipoint environment · CPC title

• H04W72/04 Primary

  Wireless resource allocation · CPC title

• H04B7/026 Primary

  Co-operative diversity, e.g. using fixed or mobile stations as relays · CPC title

• H04W72/0413

  Electricity · mapped topic