A relay device communicably connects an upper-level air conditioning system and a lower-level air conditioning system that use different protocols. An upper-side communicator is connected to a first bus, and transmits and receives communication packets to and from the upper-level air conditioning system. A lower-side communicator is connected to an outdoor device that is a master device, and transmits and receives communication commands to and from the lower-level air conditioning system. An association information memory stores association information obtained by associating an address in the upper-level air conditioning system allocated to each device in the lower-level air conditioning system with identification information on each device in the lower-level air conditioning system. A processor performs a mutual conversion on the communication packets and the communication commands based on the association information stored in the association information memory.

A relay device communicably connects an upper-level air conditioning system and a lower-level air conditioning system that use different protocols. An upper-side communicator is connected to a first bus, and transmits and receives communication packets to and from the upper-level air conditioning system. A lower-side communicator is connected to an outdoor device that is a master device, and transmits and receives communication commands to and from the lower-level air conditioning system. An association information memory stores association information obtained by associating an address in the upper-level air conditioning system allocated to each device in the lower-level air conditioning system with identification information on each device in the lower-level air conditioning system. A processor performs a mutual conversion on the communication packets and the communication commands based on the association information stored in the association information memory.

Methods, systems, and devices for wireless communications are described. A wireless device may establish connectivity between the wireless device and a user equipment (UE) via a first communication path, and between the wireless device and the UE via a second communication path that includes a relay device. The wireless device may transmit, via the first communication path, a first message in a first format to the UE, including first data, and transmit, via the second communication path to the relay device, a second message in a second format and including the first data, the second format indicating that the relay device is to relay the first data to the UE. The relay device may receive, via a first portion of the second communication path, the first message and may transmit, to the UE via a second portion of the second path, a second message including the first data.

Methods, systems, and devices for wireless communications are described. A wireless device may establish connectivity between the wireless device and a user equipment (UE) via a first communication path, and between the wireless device and the UE via a second communication path that includes a relay device. The wireless device may transmit, via the first communication path, a first message in a first format to the UE, including first data, and transmit, via the second communication path to the relay device, a second message in a second format and including the first data, the second format indicating that the relay device is to relay the first data to the UE. The relay device may receive, via a first portion of the second communication path, the first message and may transmit, to the UE via a second portion of the second path, a second message including the first data.

Methods and devices are disclosed from the perspective of a first wireless transmit/receive unit (WTRU). In one method, the method includes triggering a first buffer status report (BSR), wherein the first BSR indicates an estimated amount of data expected to arrive.

Methods, systems, and devices for wireless communications are described. a first donor node may serve a relay node, which in turn may serve a child node. The first donor node may determine to transfer (e.g., via a handover procedure) the relay node to a second donor node. The first donor node may transmit a first context transfer request for the relay node to the second donor node, and may transmit a second context transfer request for the child node of the relay node to the second donor node. The first donor node may indicate a correlation between the two context transfers. The second donor node may identify the correlated context transfers, and may successfully perform a migration procedure for the relay node and any descendent devices or nodes based on the correlated context transfers.

Methods, systems, and devices for wireless communications are described. a first donor node may serve a relay node, which in turn may serve a child node. The first donor node may determine to transfer (e.g., via a handover procedure) the relay node to a second donor node. The first donor node may transmit a first context transfer request for the relay node to the second donor node, and may transmit a second context transfer request for the child node of the relay node to the second donor node. The first donor node may indicate a correlation between the two context transfers. The second donor node may identify the correlated context transfers, and may successfully perform a migration procedure for the relay node and any descendent devices or nodes based on the correlated context transfers.

A wireless communication system includes a first wireless communication device supporting a first wireless connection or a second wireless connection, and a second wireless communication device operating as an access point identified by network identification information including first identification information for use in the first wireless connection and second identification information for use in the second wireless connection, and the first wireless communication device is wirelessly connected to the second wireless communication device on the basis of the first identification information or the second identification information, both of which are included in the network identification information.

A wireless communication system includes a first wireless communication device supporting a first wireless connection or a second wireless connection, and a second wireless communication device operating as an access point identified by network identification information including first identification information for use in the first wireless connection and second identification information for use in the second wireless connection, and the first wireless communication device is wirelessly connected to the second wireless communication device on the basis of the first identification information or the second identification information, both of which are included in the network identification information.

Systems and methods of mesh network communication enabling a relay node to autonomously select a packet propagation mechanism. Upon receiving a packet, which may carry an indication for flooding propagation as set by the edge node originating the packet, or carry no specification for any propagation mode, the relay node determines whether the packet is eligible for routing-propagation based on a number of factors, such as whether there is an existent valid route from the source node to the destination node, whether the packet is originated from a friend edge node, and whether a route discovery process has been initiated. Accordingly, the relay node may change the indication to routing propagation and forward it by routing-relaying. Thus, the packet can be propagated over the mesh network by routing propagation, despite the initial setting for flooding propagation as specified by the edge node or no setting by the edge node.