User equipment discovery
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsLiang Hu, Marco Belleschi, Zhang Zhang, Jingya Li
Life of this patent
Estimating the term…
Abstract
A user equipment, UE, receives radio resource control, RRC, signaling from a peer UE (14). The RRC signaling indicates radio layer parameters supported by the peer UE (14) or indicates whether radio layer parameters supported by the peer UE (14) are compatible with radio layer parameters required for a connection between the peer UE (14) and the UE. The UE determines whether or not to establish a connection towards the peer UE (14) based on the received RRC signaling.
Claims12
A method performed by a user equipment (UE), the method comprising:
- receiving, from a peer UE, radio resource control (RRC) signaling that indicates radio layer parameters supported by the peer UE or indicates whether radio layer parameters supported by the peer UE are compatible with radio layer parameters required for a connection between the peer UE and the UE;
- determining whether or not to establish a connection towards the peer UE based on the received RRC signaling;
- receiving, at an upper layer of the UE that is higher than an RRC layer of the UE, one or more advertisement messages from one or more advertising UEs, the one or more advertising UEs including the peer UE;
- determining, based on the one or more advertisement messages, which of the one or more advertising UEs are candidates for connection establishment;
- and
- the peer UE being determined to be a candidate for connection establishment.
A user equipment (UE), the UE comprising:
- processing circuitry configured to:
- receive, from a peer UE, radio resource control (RRC) signaling that indicates radio layer parameters supported by the peer UE or indicates whether radio layer parameters supported by the peer UE are compatible with radio layer parameters required for a connection between the peer UE and the UE;
- determine whether or not to establish a connection towards the peer UE based on the received RRC signaling;
- receive, at an RRC layer of the UE, information from an upper layer of the UE that indicates one or more peer UEs as candidates for connection establishment, wherein the upper layer is higher than the RRC layer, wherein the one or more peer UEs includes said peer UE;
- responsive to receiving the information at the RRC layer, trigger an RRC layer information exchange with each of the one or more peer UEs in which the UE receives from each peer UE RRC signaling that indicates radio layer parameters supported by the peer UE or indicates whether radio layer parameters supported by the peer UE are compatible with radio layer parameters required for a connection between the peer UE and the UE;
- determine, at the RRC layer of the UE and based on the RRC layer information exchange with each of the one or more peer UEs, whether radio layer parameters supported by the peer UE are compatible with radio layer parameters required for a connection between the peer UE and the UE;
- transmit, from the RRC layer to the upper layer, information indicating at least one of the one or more peer UEs that supports radio layer parameters which are compatible with radio layer parameters required for a connection between the peer UE and the UE;
- and
- the determining being performed by the upper layer based on the information transmitted from the RRC layer to the upper layer.
Dependencies are inferred from the claim text.