Apparatus and methods for anonymous paired device discovery in wireless communications systems
AssigneeSony Mobile Communications Inc.
InventorRickard Ljung
Life of this patent
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Abstract
A wireless communications system transmits a first message including an anonymous discovery pilot identification code to a first terminal, receives a second message from a second terminal and determines whether the second message identifies the discovery pilot identification code. The system may transmit a third message identifying the first terminal to the second terminal responsive to the second message identifying the discovery pilot identification code. Transmission of the first message may be preceded by receiving a request message from the first terminal requesting permission to transmit a discovery pilot signal.
Claims20
A method of operating a first wireless communications terminal, the method comprising:
- transmitting a message from the first wireless communications terminal to a wireless communications system requesting permission to transmit an anonymous discovery pilot signal;
- receiving, at the first wireless communications terminal, a message including an anonymous discovery pilot identification code from the wireless communications system;
- transmitting, from the first wireless communications terminal to a second terminal, an anonymous discovery pilot signal including the anonymous discovery pilot identification code.
A method of operating a first wireless communications terminal, the method comprising:
- receiving, at the first wireless communications terminal, at least one discovery pilot signal from at least one second wireless terminal;
- recovering at least one anonymous discovery pilot identification code from the at least one received discovery pilot signal;
- transmitting, from the first wireless communications terminal, a message to a wireless communications system identifying the recovered at least one anonymous discovery pilot identification code;
- and
- receiving, at the first wireless communications terminal, a message identifying at least one second wireless terminal associated with the at least one anonymous discovery pilot identification code from the wireless communications system.
A wireless communications terminal comprising:
- a processor, wherein the processor is configured to:
- transmit a message from the wireless communications terminal to a wireless communications system requesting permission to transmit an anonymous discovery pilot signal;
- receive a message including an anonymous discovery pilot identification code from the wireless communications system;
- and
- transmit an anonymous discovery pilot signal including the anonymous discovery pilot identification code to the second terminal.
A wireless communications terminal comprising:
- a processor, wherein the processor is configured to,
- receive at least one discovery pilot signal;
- recover at least one anonymous discovery pilot identification code from the at least one received discovery pilot signal;
- transmit a message to a wireless communications system identifying the recovered at least one anonymous discovery pilot identification code;
- and
- receive a message from the wireless communications system identifying at least one other terminal associated with the at least one anonymous discovery pilot identification code from the wireless communications system.
Dependencies are inferred from the claim text.