Mobility and connection management of low power wireless communications apparatuses
AssigneeFujitsu Limited
InventorsZhaojun LI, Hind Chebbo
Life of this patent
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Abstract
A method of implementing multiple radio access technologies, RATs, by a multi-RAT wireless communication network and a wireless communication apparatus. The multi-RAT wireless communication network transmits, to the wireless communication apparatus, a signal relating to a second RAT using a first RAT. The wireless communication apparatus uses a first radio communication module configured to support the first RAT to receive the signal, and activates a second radio communication module configured to support the second RAT from a power saving in order to perform a function. The first RAT generally has lower power consumption in use at the wireless communication apparatus than that of the second RAT.
Claims15
A method of implementing multiple radio access technologies (RATs) by a multi-RAT wireless communication network and a wireless communication apparatus, the method comprising:
- transmitting, by the multi-RAT wireless communication network, to the wireless communication apparatus, a signal to wake up a second RAT using a first RAT;
- and
- using, by the wireless communication apparatus, a first radio communication module configured to support the first RAT to receive the signal, and activating a second radio communication module configured to support the second RAT from a power saving state to monitor for a transmission from the multi-RAT wireless communication network;
- transmitting, by the wireless communication apparatus, to the multi-RAT wireless communication network, a response to the transmission using the second radio communication module,
- wherein the first RAT having lower power consumption in use at the wireless communication apparatus than power consumption of the second RAT.
A wireless communication system, comprising:
- a multi-radio access technology (RAT) infrastructure node configured to use a first RAT to transmit a signal to wake up a second RAT;
- and
- a wireless communication apparatus, comprising:
- a first radio communication module configured to support the first RAT,
- a second radio communication module configured to support the second RAT, and
- a controller configured to activate the second radio communication module from a power saving state, in response to the first radio communication module receiving the signal from the multi-RAT infrastructure node,
- wherein, when activated, the second radio communication module is configured to monitor for a transmission from the multi-RAT wireless communication network and to transmit a response to the transmission to the multi-RAT wireless communication network, and
- wherein the first RAT having lower power consumption in use at the wireless communication apparatus than the power consumption of the second RAT.
A multi-radio access technology (RAT) infrastructure node, comprising:
- a first communications unit configured to support a first RAT, and
- a second radio communication unit configured to support a second RAT,
- wherein the first communications unit is configured to use the first RAT to transmit, to a wireless communication apparatus, a signal to wake up the second RAT, and
- wherein the second radio communication unit is configured to receive a response from the wireless communication apparatus after the first communications unit has transmitted the signal to wake up the second RAT.
A wireless communication apparatus, comprising:
- a first radio communication module configured to support a first RAT(multi-radio access technology);
- a second radio communication module configured to support a second RAT;
- and
- a controller configured to activate the second radio communication module from a power saving state in response to the first radio communication module receiving a signal to wake up the second RAT transmitted by a multi-RAT infrastructure node using the first RAT,
- wherein, when activated, the second radio communication module is configured to monitor for a transmission from the multi-RAT infrastructure node and to transmit a response to the transmission to the multi-RAT infrastructure node, and
- wherein the first RAT having lower power consumption in use at the wireless communication apparatus than the power consumption of the second RAT.
Dependencies are inferred from the claim text.