Relay signaling between ue and network

Patent metadata

Field	Value
Publication number	US-2016234754-A1
Application number	US-201615006769-A
Country	US
Kind code	A1
Filing date	Jan 26, 2016
Priority date	Feb 10, 2015
Publication date	Aug 11, 2016
Grant date	—

Abstract

A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a UE. The UE may transmit a message that includes a relay status of the UE. The relay status may indicate whether the UE intends to function as a relay node between a base station and at least one D2D destination. The UE may receive a DCI message based on the relay status of the UE. The DCI message may indicate resources allocated to the UE based on the relay status of the UE. The UE may transmit data on the resources allocated to the UE based on the relay status of the UE.

First claim

What is claimed is:

1 . A method of wireless communication by a user equipment (UE), comprising:
transmitting a message that comprises a relay status of the UE, the relay status indicating whether the UE intends to function as a relay node between a base station and at least one device-to-device (D2D) destination; receiving a downlink control information (DCI) message based on the relay status of the UE, the DCI message indicating resources allocated to the UE based on the relay status of the UE; and transmitting data on the resources allocated to the UE based on the relay status of the UE.

2 . The method of claim 1 , wherein the message indicates the at least one D2D destination for which the UE intends to function as the relay node.

3 . The method of claim 2 , wherein the message indicates a plurality of D2D destinations with which the UE intends to communicate, and wherein the at least one D2D destination for which the UE intends to function as the relay node is a subset of the plurality of D2D destinations.

4 . The method of claim 2 , wherein the message indicates the at least one D2D destination by including one or more of a D2D group identifier (ID) or a UE ID.

5 . The method of claim 1 , wherein the message includes a link quality associated with a connection between the UE and one or more UEs in the at least one D2D destination for which the UE functions as the relay node.

6 . The method of claim 1 , wherein the message indicates an intention to perform D2D communication with the at least one D2D destination.

7 . The method of claim 1 , wherein the message includes a buffer status report and a D2D group index, wherein the D2D group index is associated with a D2D group identifier and corresponds to a position of the D2D group identifier included in a direct communication indication message transmitted by the UE, and wherein the D2D group identifier is associated with a D2D group for which the UE intends to function as the relay node.

8 . The method of claim 1 , further comprising receiving the data from the at least one D2D destination for transmission to the base station.

9 . The method of claim 1 , further comprising receiving the data from the base station for transmission to the at least one D2D destination.

10 . An apparatus for wireless communication, comprising:
means for transmitting a message that comprises a relay status of the apparatus, the relay status indicating whether the apparatus intends to function as a relay node between a base station and at least one device-to-device (D2D) destination; means for receiving a downlink control information (DCI) message based on the relay status of the apparatus, the DCI message indicating resources allocated to the apparatus based on the relay status of the apparatus; and means for transmitting data on the resources allocated to the apparatus based on the relay status of the apparatus.

11 . The apparatus of claim 10 , wherein the message indicates the at least one D2D destination for which the apparatus intends to function as the relay node.

12 . The apparatus of claim 11 , wherein the message indicates a plurality of D2D destinations with which the apparatus intends to communicate, and wherein the at least one D2D destination for which the apparatus intends to function as the relay node is a subset of the plurality of D2D destinations.

13 . The apparatus of claim 11 , wherein the message indicates the at least one D2D destination by including one or more of a D2D group identifier (ID) or a user equipment ID.

14 . The apparatus of claim 10 , wherein the message includes a link quality associated with a connection between the apparatus and one or more user equipments in the at least one D2D destination for which the apparatus functions as the relay node.

15 . The apparatus of claim 10 , wherein the message indicates an intention to perform D2D communication with the at least one D2D destination.

16 . The apparatus of claim 10 , wherein the message includes a buffer status report and a D2D group index, wherein the D2D group index is associated with a D2D group identifier and corresponds to a position of the D2D group identifier included in a direct communication indication message transmitted by the apparatus, and wherein the D2D group identifier is associated with a D2D group for which the apparatus intends to function as the relay node.

17 . The apparatus of claim 10 , further comprising means for receiving the data from the at least one D2D destination for transmission to the base station.

18 . The apparatus of claim 10 , further comprising means for receiving the data from the base station for transmission to the at least one D2D destination.

19 . An apparatus for wireless communication, comprising:
a memory; and at least one processor coupled to the memory and configured to:
transmit a message that comprises a relay status of the apparatus, the relay status indicating whether the apparatus intends to function as a relay node between a base station and at least one device-to-device (D2D) destination;
receive a downlink control information (DCI) message based on the relay status of the apparatus, the DCI message indicating resources allocated to the apparatus based on the relay status of the apparatus; and
transmit data on the resources allocated to the apparatus based on the relay status of the apparatus.

20 . The apparatus of claim 19 , wherein the message indicates the at least one D2D destination for which the apparatus intends to function as the relay node.

21 . The apparatus of claim 20 , wherein the message indicates a plurality of D2D destinations with which the apparatus intends to communicate, and wherein the at least one D2D destination for which the apparatus intends to function as the relay node is a subset of the plurality of D2D destinations.

22 . The apparatus of claim 20 , wherein the message indicates the at least one D2D destination by including one or more of a D2D group identifier (ID) or a user equipment ID.

23 . The apparatus of claim 19 , wherein the message includes a link quality associated with a connection between the apparatus and one or more user equipments in the at least one D2D destination for which the apparatus functions as the relay node.

24 . The apparatus of claim 19 , wherein the message indicates an intention to perform D2D communication with the at least one D2D destination.

25 . The apparatus of claim 19 , wherein the message includes a buffer status report and a D2D group index, wherein the D2D group index is associated with a D2D group identifier and corresponds to a position of the D2D group identifier included in a direct communication indication message transmitted by the apparatus, and wherein the D2D group identifier is associated with a D2D group for which the apparatus intends to function as the relay node.

26 . The apparatus of claim 19 , wherein the at least one processor is further configured to receive the data from the at least one D2D destination for transmission to the base station.

27 . The apparatus of claim 19 , wherein the at least one processor is further configured to receive the data from the base station for transmission to the at least one D2D destination.

28 . A computer-readable medium for a user equipment (UE) storing computer executable code, comprising code to:
transmit

Assignees

• Qualcomm Inc

Inventors

• Baghel Sudhir Kumar

Classifications

• H04W76/14

  Direct-mode setup · CPC title

• H04W72/121

  for groups of terminals or users · CPC title

• H04W88/04

  adapted for relaying to or from another terminal or user · CPC title

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title