Method and Apparatus for Performing Direct Communications in Wireless Communication System

• US 20150223226A1
• Filed: 04/15/2015
• Published: 08/06/2015
• Est. Priority Date: 03/12/2012
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Wu, Chih-Hsiang
• Granted Patent: US 10,091,790 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 63/205 involving negotiation or determination of the one or more network security mechanisms to be used, e.g. by negotiation between the client and the server or between peers or by selection according to the capabilities of the entities involved negotiation of communication capabilities H04L69/24
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 72/53 based on regulatory allocation policies
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals

Abstract

A method of assigning resources to perform direct communications in a network of a wireless communication system includes generating and sending a first resource allocation configuration allocating resources for transmitting a transport block in a subframe to a first communication device; and generating and sending a second resource allocation configuration allocating resources for receiving the transport block in the subframe to a second communication device; wherein the resources for transmitting the transport block are identical to the resources for receiving the transport block.

Claims

1. A method of assigning resources to perform direct communications in a network of a wireless communication system, the method comprising:

generating and sending a first resource allocation configuration allocating resources for transmitting a transport block in a subframe to a first communication device; and

generating and sending a second resource allocation configuration allocating resources for receiving the transport block in the subframe to a second communication device;

wherein the resources for transmitting the transport block are identical to the resources for receiving the transport block.

2. The method of claim 1, wherein the first resource allocation configuration is sent via a first physical downlink control channel (PDCCH), a first medium access control (MAC) control element or a first radio resource control (RRC) message between the first communication device and the network, and the second resource allocation configuration is sent via a second PDCCH, a second MAC control element or a second RRC message between the second communication device and the network.

3. The method of claim 2, wherein the second resource allocation configuration is a downlink assignment generated by the network and sent by the network on the second PDCCH to the second communication device to receive the transport block in the subframe and the first resource allocation configuration is an uplink grant generated by the network and sent by the network on the first PDCCH to the first communication device to transmit the transport block in the subframe.

4. A method of assigning resources to perform direct communications in a first communication device of a wireless communication system, the method comprising:

obtaining a first resource allocation configuration allocating resources for transmitting a transport block in a subframe to a second communication device, from a network;

generating a second resource allocation configuration allocating resources for the second communication device to receive the transport block in the subframe; and

sending the second resource allocation configuration to the second communication device.

5. The method of claim 4, wherein the first resource allocation configuration is sent via a first physical control channel, a first medium access control (MAC) control element or a first radio resource control (RRC) message between the first communication device and the network and the second resource allocation configuration is sent via a second physical control channel, a second MAC control element or a second RRC message between the first communication device and the second communication device.

6. The method of claim 5, wherein the second resource allocation configuration is an assignment generated by the first communication device and sent by the first communication device on the second physical control channel to the second communication device for receiving the transport block in the subframe and the first resource allocation configuration is a grant generated by the network and sent by the network on the first physical control channel to the first communication device to transmit the transport block in the subframe.

7. The method of claim 4, wherein the second resource allocation configuration is generated according to the first resource allocation configuration.

8. A method of assigning resources to perform direct communications in a first communication device of a wireless communication system, the method comprising:

receiving a first resource allocation configuration transmitted by a second communication device wherein the first resource allocation allocates resources for the first communication device to receive a transport block transmitted by the second communication device in a subframe; and

receiving the transport block according to the first resource allocation configuration;

wherein the first resource allocation configuration is generated by the second communication device and the transport block is transmitted by the second communication device according to the second resource allocation configuration which allocates resources for the second communication device to transmit the transport block in the subframe to the first communication device.

9. The method of claim 8, wherein the second resource allocation configuration is sent via a first physical control channel, a first medium access control (MAC) control element or a first radio resource control (RRC) message between the first communication device and the network and the first resource allocation configuration is sent via a second physical control channel, a second MAC control element or a second RRC message between the first communication device and the second communication device.

10. The method of claim 8, wherein the first resource allocation configuration is an assignment generated by the first communication device and sent by the second communication device on a second physical control channel to the first communication device for receiving the transport block in the subframe and the second resource allocation configuration is a grant generated by the network and sent by the network on a first physical control channel to the second communication device to transmit the transport block in the subframe.

11. The method of claim 8, wherein the first resource allocation configuration is generated according to the second resource allocation configuration.

12. A method of assigning resources to perform direct communications in a network of a wireless communication system for a network, the method comprising:

transmitting a first resource allocation configuration allocating resources for a first communication device to transmit a transport block in a subframe to a second communication device;

wherein the first communication device generates a second resource allocation configuration allocating resources for the second communication device to receive the transport block in the subframe; and

transmits the second resource allocation configuration to the second communication device.

13. The method of claim 12, wherein the first resource allocation configuration is sent via a first physical control channel, a first medium access control (MAC) control element or a first radio resource control (RRC) message between the first communication device and the network and the second resource allocation configuration is sent via a second physical control channel, a second MAC control element or a second RRC message between the first communication device and the second communication device.

14. The method of claim 12, wherein the second resource allocation configuration is an assignment generated by the first communication device and sent by the first communication device on a second physical control channel to the second communication device for receiving the transport block in the subframe and the first resource allocation configuration is a grant generated by the network and sent by the network on a first physical control channel to the first communication device to transmit the transport block in the subframe.

15. A communication apparatus for assigning resources to perform direct communications in a network of a wireless communication system, comprising:

a processing means; and

a storage unit, coupled to the processing means, for storing a program code, wherein the program code instructs the processing means to execute the following steps;

generating and sending a first resource allocation configuration allocating resources for transmitting a transport block in a subframe to a first communication device; and

generating and sending a second resource allocation configuration allocating resources for receiving the transport block in the subframe to a second communication device;

wherein the resources for transmitting the transport block are identical to the resources for receiving the transport block.

16. The communication apparatus of claim 15, wherein the first resource allocation configuration is sent via a first physical downlink control channel (PDCCH), a first medium access control (MAC) control element or a first radio resource control (RRC) message between the first communication device and the network, and the second resource allocation configuration is sent via a second PDCCH, a second MAC control element or a second RRC message between the second communication device and the network.

17. The communication apparatus of claim 16, wherein the second resource allocation configuration is a downlink assignment generated by the network and sent by the network on the second PDCCH to the second communication device to receive the transport block in the subframe and the first resource allocation configuration is an uplink grant generated by the network and sent by the network on the first PDCCH to the first communication device to transmit the transport block in the subframe.

18. A communication apparatus for assigning resources to perform direct communications in a first communication device of a wireless communication system, comprising:

a processing means; and

a storage unit, coupled to the processing means, for storing a program code, wherein the program code instructs the processing means to execute the following steps;

obtaining a first resource allocation configuration allocating resources for transmitting a transport block in a subframe to a second communication device, from a network;

generating a second resource allocation configuration allocating resources for the second communication device to receive the transport block in the subframe; and

sending the second resource allocation configuration to the second communication device.

19. The communication apparatus of claim 18, wherein the first resource allocation configuration is sent via a first physical control channel, a first medium access control (MAC) control element or a first radio resource control (RRC) message between the first communication device and the network and the second resource allocation configuration is sent via a second physical control channel, a second MAC control element or a second RRC message between the first communication device and the second communication device.

20. The communication apparatus of claim 19, wherein the second resource allocation configuration is an assignment generated by the first communication device and sent by the first communication device on the second physical control channel to the second communication device for receiving the transport block in the subframe and the first resource allocation configuration is a grant generated by the network and sent by the network on the first physical control channel to the first communication device to transmit the transport block in the subframe.

21. The communication apparatus of claim 18, wherein the second resource allocation configuration is generated according to the first resource allocation configuration.

22. A communication apparatus for assigning resources to perform direct communications in a first communication device of a wireless communication system, comprising:

a processing means; and

a storage unit, coupled to the processing means, for storing a program code, wherein the program code instructs the processing means to execute the following steps;

receiving a first resource allocation configuration transmitted by a second communication device wherein the first resource allocation allocates resources for the first communication device to receive a transport block transmitted by the second communication device in a subframe; and

receiving the transport block according to the first resource allocation configuration;

wherein the first resource allocation configuration is generated by the second communication device and the transport block is transmitted by the second communication device according to the second resource allocation configuration which allocates resources for the second communication device to transmit the transport block in the subframe to the first communication device.

23. The communication apparatus of claim 22, wherein the second resource allocation configuration is sent via a first physical control channel, a first medium access control (MAC) control element or a first radio resource control (RRC) message between the first communication device and the network and the first resource allocation configuration is sent via a second physical control channel, a second MAC control element or a second RRC message between the first communication device and the second communication device.

24. The communication apparatus of claim 22, wherein the first resource allocation configuration is an assignment generated by the first communication device and sent by the second communication device on a second physical control channel to the first communication device for receiving the transport block in the subframe and the second resource allocation configuration is a grant generated by the network and sent by the network on a first physical control channel to the second communication device to transmit the transport block in the subframe.

25. The communication apparatus of claim 22, wherein the first resource allocation configuration is generated according to the second resource allocation configuration.

26. A communication apparatus for assigning resources to perform direct communications in a network of a wireless communication system for a network, comprising:

a processing means; and

a storage unit, coupled to the processing means, for storing a program code, wherein the program code instructs the processing means to execute the following steps;

transmitting a first resource allocation configuration allocating resources for a first communication device to transmit a transport block in a subframe to a second communication device;

wherein the first communication device generates a second resource allocation configuration allocating resources for the second communication device to receive the transport block in the subframe; and

transmits the second resource allocation configuration to the second communication device.

27. The communication apparatus of claim 26, wherein the first resource allocation configuration is sent via a first physical control channel, a first medium access control (MAC) control element or a first radio resource control (RRC) message between the first communication device and the network and the second resource allocation configuration is sent via a second physical control channel, a second MAC control element or a second RRC message between the first communication device and the second communication device.

28. The communication apparatus of claim 26, wherein the second resource allocation configuration is an assignment generated by the first communication device and sent by the first communication device on a second physical control channel to the second communication device for receiving the transport block in the subframe and the first resource allocation configuration is a grant generated by the network and sent by the network on a first physical control channel to the first communication device to transmit the transport block in the subframe.