Apparatus and Method for Improving Handover in a Global System for Mobile Communications
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Accused Products
Abstract
A method is provided for improving handover in a mobile station configured to operate a time division multiple access, TDMA, protocol in a global system for mobile communications, GSM, telecommunication network. The method comprises the steps of receiving a handover command requesting that the mobile station perform a handover operation from a serving cell to a target cell, and configuring the mobile station to transmit and receive user plane data with the serving cell and the target cell during a time period between receiving the handover command and the handover operation being completed.
17 Citations
38 Claims
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1-19. -19. (canceled)
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20. A method for improving handover in a mobile station configured to operate a time division multiple access (TDMA) protocol in a global system for mobile communications (GSM) telecommunication network, the method comprising the steps of:
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receiving a handover command requesting that the mobile station perform a handover operation from a serving cell to a target cell; and configuring the mobile station to transmit and receive user plane data with the serving cell and the target cell during a time period between receiving the handover command and the handover operation being completed. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 35, 36)
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28. A mobile station configured to operate a time division multiple access (TDMA) protocol in a global system for mobile communications (GSM) telecommunication network, the mobile station comprising:
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an interface circuit configured to receive a handover command requesting that the mobile station perform a handover operation from a serving cell to a target cell; and a processing circuit configured to control transmission and reception of user plane data with the serving cell and the target cell during a time period between receiving the handover command and the handover operation being completed. - View Dependent Claims (29, 30, 31, 32)
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33. A method in a network node that is configured to operate a time division multiple access (TDMA) protocol in a global system for mobile communications (GSM) telecommunication network, the method comprising the steps of:
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determining which channel combination (CC) and simultaneous transmission mode (STM) is being used to communicate with a mobile station; determining which network resources are available for the combination of CC and STM; and transmitting a handover signal to a mobile station, requesting that the mobile station perform a handover operation from a serving cell to a target cell, the handover signal containing information relating to the resources to be used during the handover for communicating user plane data, such that the mobile station is configurable to transmit and receive user plane data with the serving cell and the target cell during a time period between the handover signal transmitted from the network node being received by the mobile station and the handover operation being completed. - View Dependent Claims (34, 37)
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38. A network node configured to operate a time division multiple access (TDMA) protocol in a global system for mobile communications (GSM) telecommunication network, the network node comprising:
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a processing circuit configured to; determine which channel combination (CC) and simultaneous transmission mode (STM) is being used by a mobile station; determine which network resources are available for the combination of CC and STM; and an interface circuit configured to transmit a handover signal to a mobile station requesting that the mobile station perform a handover operation from a serving cell to a target cell, the handover signal containing information relating to the resources to be used during the handover for communicating user plane data, such that the mobile station is configurable to transmit and receive user plane data with the serving cell and the target cell during a time period between the handover signal transmitted from the network node being received by the mobile station and the handover operation being completed.
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Specification