Device-to-device data channel signaling

Patent metadata

Field	Value
Publication number	US-2016255647-A1
Application number	US-201414908526-A
Country	US
Kind code	A1
Filing date	May 12, 2014
Priority date	Nov 22, 2013
Publication date	Sep 1, 2016
Grant date	—

Abstract

A method of communicating wireless communication resource scheduling may include determining a scheduling of a wireless communication resource associated with a device-to-device (D2D) data channel transmission over a D2D data channel. The method may also include transmitting the scheduled wireless communication resource associated with the D2D data channel transmission over a D2D control channel in a D2D control channel transmission. The D2D control channel transmission may be transmitted before transmitting the D2D data channel transmission. The D2D control channel may be separate from the D2D data channel.

First claim

What is claimed is:

1 . A method of performing device-to-device (D2D) data channel signaling, the method comprising:
determining a scheduling of a wireless communication resource associated with a device-to-device (D2D) data channel transmission over a D2D data channel; and transmitting the scheduled wireless communication resource associated with the D2D data channel transmission over a D2D control channel in a D2D control channel transmission before transmitting the D2D data channel transmission, the D2D control channel being separate from the D2D data channel.

2 . The method of claim 1 , further comprising determining the scheduling of the wireless communication resource based on at least one of frequency and time hopping.

3 . The method of claim 2 , wherein the frequency hopping is between two or more Physical Resource Blocks (PRBs) within a same subframe of the D2D data channel transmission.

4 . The method of claim 1 , further comprising:
estimating interference associated with a plurality of wireless communication resources associated with the D2D data channel transmissions; and determining the scheduling of the wireless communication resource from the plurality of wireless communication resources based on the estimated interference.

5 . The method of claim 4 , wherein a receiving D2D wireless device configured to receive the D2D data channel transmission and the D2D control channel transmission is configured to estimate the interference based on one or more signals transmitted by a transmitting D2D wireless device configured to transmit the D2D data channel transmission and the D2D control channel transmission.

6 . The method of claim 4 , wherein a receiving D2D wireless device configured to receive the D2D data channel transmission and the D2D control channel transmission is configured to estimate the interference based on one or more other D2D data channel transmissions transmitted by one or more other transmitting D2D devices.

7 . The method of claim 1 , wherein the D2D control channel transmission further includes one or more of a Modulation and Coding Scheme (MCS) used by the D2D data channel, an identifier (ID) associated with the transmission of D2D data between a transmitting D2D wireless device and one or more receiving D2D wireless devices, and a new data indicator (NDI) indicating a range of wireless communication resources for one or more variable length packets of the D2D data channel transmission.

8 . The method of claim 1 , wherein the D2D data channel transmission and the D2D control channel transmission are transmitted by a transmitting D2D wireless device to a receiving D2D wireless device, the receiving D2D wireless device being out of a coverage area of a wireless communication network configured to provide wireless communication services to the receiving D2D wireless device.

9 . The method of claim 1 , further comprising:
determining a scheduling of a plurality of wireless communication resources for a plurality of D2D data channel transmissions; and transmitting the scheduled plurality of wireless communication resources over the D2D control channel transmission.

10 . The method of claim 9 , wherein determining the scheduling of the plurality of wireless communication resources follows one or more of a periodic repetition, a pre-defined time and frequency permutation, and a signaled time and frequency permutation.

11 . The method of claim 9 , further comprising transmitting the scheduled plurality of wireless communication resources over the D2D control channel transmission on a periodic or a psuedo-periodic basis.

12 . The method of claim 1 , wherein the D2D control channel includes a pre-defined set of wireless communication resources and the method further comprises transmitting the D2D control channel transmission over a wireless communication resource selected from the pre-defined set of wireless communication resources.

13 . A computer-readable storage medium configured to store instructions that cause a system to perform operations for performing device-to-device (D2D) data channel signaling, the operations comprising:
determining a scheduling of a wireless communication resource associated with a device-to-device (D2D) data channel transmission over a D2D data channel; and transmitting the scheduled wireless communication resource associated with the D2D data channel transmission over a D2D control channel in a D2D control channel transmission before transmitting the D2D data channel transmission, the D2D control channel being separate from the D2D data channel.

14 . The computer-readable storage medium of claim 13 , wherein the operations further comprise determining the scheduling of the wireless communication resource based on at least one of frequency and time hopping.

15 . The computer-readable storage medium of claim 14 , wherein the frequency hopping is between two or more Physical Resource Blocks (PRB's) within a same subframe of the D2D data channel transmission.

16 . The computer-readable storage medium of claim 13 , wherein the operations further comprise:
estimating interference associated with a plurality of wireless communication resources associated with the D2D data channel transmissions; and determining the scheduling of the wireless communication resource from the plurality of wireless communication resources based on the estimated interference.

17 . The computer-readable storage medium of claim 16 , wherein:
the D2D data channel transmission and the D2D control channel transmission are transmitted by a transmitting D2D device; and estimating the interference is based on one or more other D2D data channel transmissions transmitted by one or more other transmitting D2D devices that are not the transmitting D2D device.

18 . The computer-readable storage medium of claim 13 , wherein the D2D data channel transmission and the D2D control channel transmission are transmitted by a transmitting D2D wireless device to a receiving D2D wireless device, the receiving D2D wireless device being out of a coverage area of a wireless communication network configured to provide wireless communication services to the receiving D2D wireless device.

19 . The computer-readable storage medium of claim 13 , wherein the operations further comprise:
determining a scheduling of a plurality of wireless communication resources for a plurality of D2D data channel transmissions; and transmitting the scheduled plurality of wireless communication resources over the D2D control channel transmission.

20 . A wireless device comprising:
a computer-readable storage medium configured to store instructions; and one or more processors configured to execute the instructions to cause the wireless device to perform operations for performing device-to-device (D2D) data channel signaling, the operations comprising: determining a scheduling of a wireless communication resource associated with a device-to-device (D2D) data channel transmission over a D2D data channel; and transmitting the scheduled wireless communication resource associated with the D2D data channel transmission over a D2D control channel in a D2D control channel transmission before transmitting the D2D data channel transmission, the D2D control channel being separate from the D2D data channel.

21 . The wireless device of claim 20 , wherein the operations further comprise:
estimating interference associated with a plurality of wireless communication resources associ

Assignees

• Fujitsu Ltd

Inventors

• Zhu Chenxi
• Ito Akira

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/20 Primary

  Control channels or signalling for resource management · CPC title

• H04W72/1231

  Electricity · mapped topic

• H04W72/1278 Primary

  Electricity · mapped topic

• H04W72/0406

  Electricity · mapped topic