Telecommunications apparatus and methods
First Claim
1. A method of operating a network entity in a wireless telecommunication system supporting device-to-device (D2D), communications between terminal devices, the method comprising:
- establishing a set of radio resources to be made available for D2D communications within the wireless telecommunication system;
communicating an indication of the set of radio resources to terminal devices operating in the wireless telecommunications system;
determining a fractional utilization indicating an extent to which the set of radio resources is being used for D2D communications;
establishing an updated set of radio resources to be made available for D2D communications within the wireless telecommunication system based on the fractional utilization indicating the extent to which the set of radio resources is being used for D2D communications; and
communicating an indication of the updated set of radio resources to terminal devices operating within the wireless telecommunications system, whereinthe fractional utilization indicating the extent to which the set of radio resources is being used for D2D communications is determined from feedback received from one or more terminal devices and comprises an indication of measurements made by the terminal device of the extent to which the set of radio resources is being used for D2D communications, andthe feedback is received in accordance with a predefined measurement schedule.
1 Assignment
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Accused Products
Abstract
Schemes for supporting device-to-device, D2D, communications between terminal devices in a wireless telecommunication system. A network entity, e.g. a base station, establishes a set pool of radio resources to be reserved for use for D2D communications and communicates an indication of these resources to terminal devices. On an ongoing basis the network entity monitors the extent to which the set of radio resources reserved for D2D communications is being used, for example based on feedback received from terminal devices or its own measurements. If it is determined the set of radio resources reserved for D2D communications is being under-utilized or over-utilized, the network entity may establish an updated set of radio resources to be used for D2D communications, and communicate this to the terminal devices. Thus a mechanism is provided for dynamically adjusting the size of a set of resources available for D2D communications in response to changing resource utilization.
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Citations
27 Claims
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1. A method of operating a network entity in a wireless telecommunication system supporting device-to-device (D2D), communications between terminal devices, the method comprising:
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establishing a set of radio resources to be made available for D2D communications within the wireless telecommunication system; communicating an indication of the set of radio resources to terminal devices operating in the wireless telecommunications system; determining a fractional utilization indicating an extent to which the set of radio resources is being used for D2D communications; establishing an updated set of radio resources to be made available for D2D communications within the wireless telecommunication system based on the fractional utilization indicating the extent to which the set of radio resources is being used for D2D communications; and communicating an indication of the updated set of radio resources to terminal devices operating within the wireless telecommunications system, wherein the fractional utilization indicating the extent to which the set of radio resources is being used for D2D communications is determined from feedback received from one or more terminal devices and comprises an indication of measurements made by the terminal device of the extent to which the set of radio resources is being used for D2D communications, and the feedback is received in accordance with a predefined measurement schedule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating a terminal device in a wireless telecommunication system supporting device-to-device D2D, communications between terminal devices, the method comprising:
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receiving an indication of a set of radio resources available for D2D communications within the wireless telecommunication system from a network entity; determining a fractional utilization indicating an extent to which the set of radio resources is being used for D2D communications; and transmitting, in accordance with a predefined measurement schedule, the fractional utilization indicating the extent to which the set of radio resources is being used for D2D communications to the network entity, wherein determining the fractional utilization indicating the extent to which the set of radio resources is being used for D2D communications comprises the terminal device determining that the terminal device was required to wait for more than a predefined delay before being able to use the set of radio resources to make a D2D transmission. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27)
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23. A terminal device for use in a wireless telecommunication system supporting device-to-device (D2D) communications between terminal devices, wherein the terminal device comprises a controller and a transceiver configured to operate together to:
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receive an indication of a set of radio resources available for D2D communications within the wireless telecommunication system from a network entity; determine a fractional utilization indicating an extent to which the set of radio resources is being used for D2D communications; and transmit, in accordance with a predefined measurement schedule, the fractional utilization indicating the extent to which the set of radio resources is being used for D2D communications to the network entity, wherein determining the fractional utilization indicating the extent to which the set of radio resources is being used for D2D communications comprises the terminal device determining that the terminal device was required to wait for more than a predefined delay before being able to use the set of radio resources to make a D2D transmission.
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Specification