Method and apparatus for transmitting device-to-device related message in wireless communication system

• US 10,681,704 B2
• Filed: 05/01/2019
• Issued: 06/09/2020
• Est. Priority Date: 07/20/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Youngdae, Park, Sungjun, Yi, Seungjune, Jung, Sunghoon
• Primary Examiner(s): Singh, Hirdepal
• Application Number:
  US16/400,455
• Publication Number:
  US 20190261348A1
• Time in Patent Office: 405 Days
• Field of Search: 4554261
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0278 using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• CPC Class Codes: H04W 36/0061 of neighbour cell information
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• 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 76/10 Connection setup
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/18 Management of setup rejection or failure
• CPC Class Codes: H04W 76/23 Manipulation of direct-mode connections
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 8/14 between corresponding nodes
• CPC Class Codes: H04W 8/24 Transfer of terminal data
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: H04W 92/18 : between terminal devices

Abstract

A method and apparatus for establishing a device-to-device (D2D) connection in a wireless communication system is provided. A first mobile device transmits a D2D related message including an identity of a second mobile device, which is connected with the first mobile device, to a network. Or, a first mobile device receives a D2D related message including an identity of a second mobile device, which is connected with the first mobile device, from a network.

Claims

1. A method performed by a first wireless device in a wireless communication system, the method comprising:

generating at least one of a first type of buffer status report (BSR) for uplink transmission from the first wireless device to a network, or a second type of BSR for device-to-device (D2D) transmission from the first wireless device to a second wireless device; and

transmitting at least one of the first type of BSR or the second type of BSR via a media access control (MAC) protocol data unit (PDU) to the network,

wherein a header of the MAC PDU informs a type of BSR among the first type of BSR and the second type of BSR, and

wherein the first wireless device is configured with a network planned mode in which the network is responsible for radio resources for the D2D transmission.

2. The method of claim 1, further comprising receiving a third type of BSR for a D2D transmission from the second wireless device to the first wireless device, via a MAC PDU from the second wireless device.

3. The method claim 1, wherein the header of the MAC PDU further informs a cell radio network temporary identity (C-RNTI) allocated for the second wireless device.

4. The method of claim 1, further comprising receiving a grant of resources for the D2D transmission from the first wireless device to the second wireless device from the network.

5. The method of claim 4, further comprising receiving information on a C-RNTI allocated for the first wireless device.

6. The method of claim 4, further comprising performing the D2D transmission to the second wireless device based on the received grant of the resources for the D2D transmission.

7. The method of claim 1, wherein the first wireless device is in communication with at least one of a user equipment, a network, and/or autonomous vehicles other than the first wireless device.

8. A first wireless device in a wireless communication system, comprising:

a memory;

a radio frequency (RF) unit; and

a processor, coupled to the memory and the RF unit, and configured to;

generate at least one of a first type of buffer status report (BSR) for uplink transmission from the first wireless device to a network, or a second type of BSR for device-to-device (D2D) transmission from the first wireless device to a second wireless device; and

control the RF unit to transmit at least one of the first type of BSR or the second type of BSR via a media access control (MAC) protocol data unit (PDU) to the network,

wherein a header of the MAC PDU informs a type of BSR among the first type of BSR and the second type of BSR, and

wherein the first wireless device is configured with a network planned mode in which the network is responsible for radio resources for the D2D transmission.

9. The first wireless device of claim 8, wherein the processor is further configured to control the RF unit to receive a third type of BSR for a D2D transmission from the second wireless device to the first wireless device, via a MAC PDU from the second wireless device.

10. The first wireless device of claim 8, wherein the header of the MAC PDU further informs a cell radio network temporary identity (C-RNTI) allocated for the second wireless device.

11. The first wireless device of claim 8, wherein the processor is further configured to control the RF unit to receive a grant of resources for the D2D transmission from the first wireless device to the second wireless device from the network.

12. The first wireless device of claim 11, wherein the processor is further configured to control the RF unit to receive information on a C-RNTI allocated for the first wireless device.

13. The first wireless device of claim 11, wherein the processor is further configured to control the RF unit to perform the D2D transmission to the second wireless device based on the received grant of the resources for the D2D transmission.

14. The first wireless device of claim 8, wherein the first wireless device is in communication with at least one of a user equipment, a network, and/or autonomous vehicles other than the first wireless device.