Realizing mobile relays for device-to-device (d2d) communications

Abstract

Systems, methods, and instrumentalities are disclosed for a WTRU to act as a mobile relay, the method comprising the WTRU connecting to the network, the WTRU receiving a message from the network indicating that the WTRU is to act as a mobile relay for one or more devices outside of the coverage of the network, the WTRU discovering one or more devices outside of the coverage of the network, and the WTRU receiving a message from the out-of-coverage device that indicates that the out-of-coverage device has selected the WTRU to act as a mobile relay.

1 - 32 . (canceled) 
     
     
         33 . A method of allocating resources to a group, the group including one or more mobile Wireless Transmit/Receive Units (WTRUs) and a supervising mobile (SM) WTRU, as group members; the method comprising:
 receiving, by the SMWTRU, configuration information indicating one or more resource allocations to be used by the group members; and   sending, by the SMWTRU to other group members in accordance with the received configuration information, resource information associated with any of: one or more pooled resource allocations and/or one or more individual resource allocations.   
     
     
         34 . The method of  claim 33 , wherein the sending of the resource information includes sending, for the one or more pooled resource allocations, by the SMWTRU to the other group members, the resource information for establishment of communication between or among the group members. 
     
     
         35 . The method of  claim 33 , wherein the sending of the resource information includes sending, for the individual resource allocations, by the SMWTRU to one or more other group members, the resource information for establishment of communication between or among any of subsets of group members. 
     
     
         36 . The method of  claim 33 , further comprising: communicating between or among the SMWTRU, as a first vehicle, and any of the one or more other group members, as further vehicles, using a group identifier associated with a first pooled resource allocation of the one or more pooled resource allocations. 
     
     
         37 . The method of  claim 33 , wherein the sending of the resource information is via a PC5 message for vehicle communication. 
     
     
         38 . The method of  claim 33 , further comprising establishing pre-configured resource allocations for communications between or among the group members, prior to the SMWTRU sending the resource information. 
     
     
         39 . The method of  claim 33 , further comprising:
 receiving, by a first mobile WTRU of the group from a network entity, an indication that the first mobile WTRU is to act as the SMWTRU for the group; and   configuring, by the first mobile WTRU, the first mobile WTRU to act as the SMWTRU.   
     
     
         40 . The method of  claim 39 , further comprising performing by the configured SMWTRU both relaying operations and operations, as a member of the group. 
     
     
         41 . The method of  claim 39 , further comprising:
 sending, by the first mobile WTRU to the network entity prior the SMWTRU being configured, capability information associated with the first mobile WTRU,   wherein the receiving of the indication that the first mobile WTRU is to act as the SMWTRU is based on the first mobile WTRU having capabilities to support an SMWTRU operation.   
     
     
         42 . The method of  claim 41 , wherein the capability information includes any of: (1) operating frequency information of the first mobile WTRU; (2) operational information regarding one or more radios of the first mobile WTRU; (3) an indication of whether the first mobile WTRU supports relaying operations; and/or (4) location information of the first mobile WTRU. 
     
     
         43 . A first Wireless Transmit/Receive Unit (WTRU) configured to allocate resources to a group, the group including one or more other mobile WTRUs and the first WTRU, as group members, comprising:
 a transmit/receive unit configured to:
 receive configuration information indicating one or more resource allocations to be used by the group members; and 
 send, to other group members in accordance with the received configuration information, resource information associated with any of: one or more pooled resource allocations and/or one or more individual resource allocations. 
   
     
     
         44 . The first WTRU of  claim 43 , wherein the transmit/receive unit is configured to send, for the one or more pooled resource allocations to the other group members, the resource information for establishment of communication between or among the group members. 
     
     
         45 . The first WTRU of  claim 43 , wherein the transmit/receive unit is configured to send, for the one or more individual resource allocations to one or more other group members, the resource information for establishment of communication between or among any of subsets of group members. 
     
     
         46 . The first WTRU of  claim 43 , wherein the transmit/receive unit is configured to communicate between or among the first WTRU, as a first vehicle, and any of the other group members, as further vehicles, using a group identifier associated with a first pooled resource allocation of the one or more pooled resource allocations. 
     
     
         47 . The first WTRU of  claim 43 , wherein the transmit/receive unit is configured to send the resource information via a PC5 message for vehicle communication. 
     
     
         48 . The first WTRU of  claim 43 , wherein the first WTRU includes pre-configured resource allocations for communication between or among the group members, prior to the resource information being sent by the first WTRU. 
     
     
         49 . The first WTRU of  claim 43 , wherein the transmit/receive unit is configured to receive from a network entity an indication that the first WTRU is to act as a supervising mobile (SM) WTRU for the members of the group; and
 a processor configured to configure the first WTRU to act as the SMWTRU.   
     
     
         50 . The first WTRU of  claim 49 , wherein the configured SMWTRU is configured to perform both relaying operations and operations, as a member of the group. 
     
     
         51 . The first WTRU of  claim 49 , wherein:
 the transmit/receive unit is configured to send to the network entity capability information associated with the first WTRU; and   the indication to act as the configured SMWTRU is based on the first WTRU having capabilities to support a SMWTRU operation.   
     
     
         52 . The first WTRU of  claim 51 , wherein the capability information includes any of: (1) operating frequency information of the first WTRU; (2) operational information regarding one or more radios of the first WTRU; (3) an indication of whether the first WTRU supports relaying operations; and/or (4) location information of the first WTRU.