Method and apparatus for performing handover in a bluetooth radiocommunication system
First Claim
1. A first master transceiver for controlling a network of transceivers, and for participating in a handover of a slave transceiver from a first network of transceivers to a second network of transceivers, the first master transceiver comprising:
- a transmitter section;
a receiver section; and
a controller configured to control the transmitter section to send one or more network parameters of the second network to a slave transceiver and to send an indication of a first handover time instance to both the slave transceiver and to a second master transceiver in the second network, wherein the first handover time instance indicates a future time to hand over the slave transceiver from the first network to the second network controlled by the second master transceiver; and
wherein the receiver section is configured to receive a second handover time instance from the second master transceiver in response to initiation of a handover of the slave transceiver from the second network to the first network, wherein the second handover time instance indicates a future time for handover of the slave transceiver to the first network, wherein the controller is further configured to control the transmitter section to send a polling message to the slave transceiver substantially at the second handover time instance, and wherein the polling message comprises a poll configured to cause a specific poll reply message to the poll;
wherein first handover time instance indicates the future time as a time offset with respect to an internal clock of the slave transceiver.
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0 Petitions
Accused Products
Abstract
Apparatus and method for handing over, at a time instance, a first low power radio frequency transceiver participating in a first network of low power radio frequency transceivers using first network parameter(s) and controlled by a first master transceiver from the first network to a second network of low power radio frequency transceivers using second network parameter(s) and controlled by a second master transceiver. An indication of the time instance is sent to the first low power radio frequency transceiver. An indication of the time instance is also sent to the second master transceiver. An indication of the second network parameter(s) is sent to the first low power radio frequency transceiver. The first transceiver switches from using the first network parameter(s) to using the second network parameter(s) at time the time instance. The second master transceiver polls the first transceiver at the time instance using the second network parameters.
27 Citations
50 Claims
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1. A first master transceiver for controlling a network of transceivers, and for participating in a handover of a slave transceiver from a first network of transceivers to a second network of transceivers, the first master transceiver comprising:
- a transmitter section;
a receiver section; and
a controller configured to control the transmitter section to send one or more network parameters of the second network to a slave transceiver and to send an indication of a first handover time instance to both the slave transceiver and to a second master transceiver in the second network, wherein the first handover time instance indicates a future time to hand over the slave transceiver from the first network to the second network controlled by the second master transceiver; andwherein the receiver section is configured to receive a second handover time instance from the second master transceiver in response to initiation of a handover of the slave transceiver from the second network to the first network, wherein the second handover time instance indicates a future time for handover of the slave transceiver to the first network, wherein the controller is further configured to control the transmitter section to send a polling message to the slave transceiver substantially at the second handover time instance, and wherein the polling message comprises a poll configured to cause a specific poll reply message to the poll;
wherein first handover time instance indicates the future time as a time offset with respect to an internal clock of the slave transceiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a transmitter section;
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16. A slave transceiver for participating in a first network of transceivers and a second network of transceivers, the slave transceiver comprising:
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a receiver section configured to;
receive, from a first master transceiver configured to control the first network of transceivers, an indication of a future time instance for handover to the second network of transceivers and one or more network parameters of the second network of transceivers; andreceive a polling message, transmitted substantially at the future time instance, from a second master transceiver configured to control the second network of transceivers; and a transmitter section configured to transmit to the second master transceiver, using the network parameters of the second network of transceivers, a reply to a polling message received from the second master transceiver, wherein the polling message comprises a poll configured to cause a specific poll reply message to the poll;
wherein the future time instance indicates the future time as a time offset with respect to an internal clock of the slave transceiver. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method of handing over a slave transceiver from a first network to a second network, the method comprising:
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sending, by a first master transceiver configured to control the first network, an indication of a future time instance for handoff to the slave transceiver; sending, by the first master transceiver, an indication of the time instance to a second master transceiver configured to control the second network, to enable the second master transceiver to send a poll substantially at the future time instance from the second master transceiver to the slave transceiver, wherein the poll comprises a poll configured to cause a specific poll reply message to the poll; and sending, by the first master transceiver, an indication of a network parameter of the second network to the slave transceiver to enable switching the slave transceiver from using a network parameter of the first network to using the network parameter of the second network;
wherein the future time instance indicates the future time as a time offset with respect to an internal clock of the slave transceiver. - View Dependent Claims (23, 24, 25, 26)
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27. A method of handing over a slave transceiver from a first network to a second network, the method comprising:
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receiving, at the slave transceiver, an indication of a time instance for future handover from a first master transceiver of the first network; receiving, at the slave transceiver, an indication of a network parameter of the second network used by the second network from the first master transceiver; receiving, at the slave transceiver, a polling message from the second master transceiver transmitted substantially at the time instance, wherein the polling message comprises a poll configured to cause a specific poll reply message to the poll; and
switching the slave transceiver from using a network parameter of the first network to using the network parameter of the second network;
wherein the time instance indicates the time as a time offset with respect to an internal clock of the slave transceiver. - View Dependent Claims (28, 29, 30, 31)
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32. A method of handing over a transceiver from a first network to one of a plurality of candidate networks, the method comprising:
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receiving, from a master transceiver of the first network at the transceiver, a communication parameter associated with each of the candidate networks and an indication of a future time instance for possible handover to each of the candidate networks; and receiving, at the transceiver, a polling message from a master transceiver associated with a particular candidate network at the time instance for possible handover associated with that particular candidate network, wherein the polling message comprises a poll configured to cause a specific poll reply message to the poll;
wherein the future time instance indicates the future time as a time offset with respect to an internal clock of the slave transceiver. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40)
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41. A method of handing over a transceiver from a first network to one of a plurality of candidate networks, the method comprising:
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receiving from a master transceiver of the first network, by a master transceiver of a particular candidate network, an indication of a future time instance for possible handover to the particular candidate network; and transmitting a polling message to the transceiver at the time instance for possible handover for the particular candidate network, the transceiver having previously been provided by the master transceiver of the first network with a communication parameter associated with the particular candidate network and with the time instance for possible handover to the particular candidate network, wherein the polling message comprises a poll configured to cause a specific poll reply message to the poll;
wherein the future time instance indicates the future time as a time offset with respect to an internal clock of the transceiver. - View Dependent Claims (42, 43, 44, 45, 46, 47)
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48. A non-transitory computer-readable medium including instructions stored thereon for handing over a slave transceiver from a first network to a second network, the instructions comprising:
instructions to send an indication of a future time instance for handoff to a slave transceiver; instructions to send an indication of the time instance to a master transceiver configured to control the second network, to enable the master transceiver to send a poll substantially at the future time instance from the master transceiver to the slave transceiver, wherein the poll comprises a poll configured to cause a specific poll reply message to the poll; and instructions to send an indication of a network parameter of the second network to the slave transceiver to enable switching the slave transceiver from using a network parameter of the first network to using the network parameter of the second network;
wherein the future time instance indicates the future time as a time offset with respect to an internal clock of the slave transceiver.
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49. A non-transitory computer-readable medium including instructions stored thereon for handing over a slave transceiver from a first network to a second network, the instructions comprising:
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instructions to receive an indication of a time instance for future handover from a first master transceiver of the first network; instructions to receive an indication of a network parameter of the second network used by the second network from the first master transceiver; instructions to receive a polling message from the second master transceiver transmitted substantially at the time instance, wherein the polling message comprises a poll configured to cause a specific poll reply message to the poll; and instructions to switch the slave transceiver from using a network parameter of the first network to using the network parameter of the second network;
wherein the time instance indicates the time as a time offset with respect to an internal clock of the slave transceiver.
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50. A non-transitory computer-readable medium including instructions stored thereon for handing over a transceiver from a first network to one of a plurality of candidate networks, the instructions comprising:
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instructions to receive from a transceiver of the first network an indication of a future time instance for possible handover to a particular candidate network; and instructions to transmit a polling message to the transceiver at the time instance for possible handover for the particular candidate network, the transceiver having previously been provided by the master transceiver of the first network with a communication parameter associated with the particular candidate network and with the time instance for possible handover to the particular candidate network, wherein the polling message comprises a poll configured to cause a specific poll reply message to the poll;
wherein the future time instance indicates the future time as a time offset with respect to an internal clock of the transceiver.
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Specification