Communication terminal and communication system
AssigneeMitsubishi Electric Corporation
InventorsTadahiro SHIMODA, Mitsuru MOCHIZUKI
Life of this patent
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Abstract
A communication terminal is capable of sidelink communication for directly communicating with another communication terminal. When being in coverage of a base station, the communication terminal is given an allocation for executing, on behalf of a higher-level device in a core network, all or part of a location management function (LMF) including a position derivation function that is a function of deriving a position of a communication terminal. The communication terminal executes, based on a result of the sidelink communication with another communication terminal, a positioning function of deriving a position of the other communication terminal, instead of the higher-level device.
Claims10
A communication terminal capable of sidelink communication for directly communicating with another communication terminal, the communication terminal comprising processing circuitry, wherein
- when the communication terminal is present in coverage of a base station, the processing circuitry is given an allocation for executing, on behalf of a higher-level device in a core network, all or part of a location management function including a position derivation function, the position derivation function being a function of deriving a position of a communication terminal, the processing circuitry executing, on a basis of a result of the sidelink communication with another communication terminal, a positioning function of deriving a position of the other communication terminal, instead of the higher-level device.
A communication system comprising:
- a plurality of communication terminals capable of sidelink communication for directly communicating with another communication terminal;
- and
- a base station having the communication terminals connected thereto, wherein
- the base station is given an allocation for executing, on behalf of a higher-level device in a core network, all or part of a location management function including a position derivation function, the position derivation function being a function of deriving a position of a communication terminal, the base station executing, on a basis of a result of the sidelink communication between another communication terminal and a positioning target terminal being one of the plurality of communication terminals, a positioning function of deriving a position of the positioning target terminal, instead of the higher-level device.
A communication system comprising:
- a plurality of communication terminals capable of sidelink communication for directly communicating with another communication terminal;
- a base station having the communication terminals connected thereto;
- and
- a higher-level device having a location management function including a position derivation function that is a function of deriving a position of the communication terminals, wherein
- the communication terminals notify the higher-level device of a result of the sidelink communication with a positioning target terminal, and
- the higher-level device derives a position of the positioning target terminal on a basis of the result provided by the communication terminals.
Dependencies are inferred from the claim text.