Distributed link scheduling technique for device to device communication
AssigneeApple Inc.
InventorsJeongho Jeon, Huaning Niu, Qinghua Li
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Abstract
Embodiments of a system and method for configuring device to device connections in a Wireless Network are generally described herein. In some embodiments, an apparatus of User Equipment (UE) may include transceiver circuitry to receive a link weight and receive wideband symbols from a plurality of UEs. The apparatus may include processing circuitry to determine a channel gain and determine whether a predetermined transmission power is to be changed.
Claims25
An apparatus of User Equipment (UE) configured for device-to-device (D2D) communication, the apparatus comprising:
- transceiver circuitry to:
- receive a first symbol and a second symbol from a second UE over a link, the first symbol indicating data to be sent and the second symbol indicating a link weight for the link;
- and
- receive a plurality of wideband symbols from a plurality of UEs including the second UE;
- perform measurements to determine from the plurality of wideband symbols, corresponding signal strengths and interference levels;
- and
- processing circuitry to:
- determine a channel gain for the link based on predetermined transmission power and a received transmission power of the second symbol over the link;
- and
- determine whether the predetermined transmission power is to be changed based on a comparison of the link weight for the link and the channel gain for the link to the signal strengths and the interference levels of the plurality of wideband symbols.
An apparatus of User Equipment (UE) configured for device-to-device (D2D) communication, the apparatus comprising:
- transceiver circuitry to:
- receive a first symbol and a second symbol sent at a predetermined transmission power directly from a second UE over a D2D link, the first symbol indicating data to be sent and the second symbol indicating a link weight for the link;
- and
- receive a plurality of wideband symbols from a plurality of UEs including the second UE;
- and
- processing circuitry to:
- configure the transceiver circuitry to perform measurements to determine from the plurality of wideband symbols, corresponding signal strengths and interference levels;
- determine a channel gain for the link using the predetermined transmission power and a received transmission power of the second symbol over the D2D link;
- and
- determine that the predetermined transmission power is to be changed to an increased transmission power by determining that a gradient function indicates that an increase in the predetermined transmission power maximizes an objective function.
A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a user equipment (UE) to configure the UE to perform operations to:
- receive a first symbol and a second symbol from a second UE over a link, the first symbol indicating data to be sent and the second symbol indicating a link weight for the link;
- receive a plurality of wideband symbols from a plurality of UEs including the second UE;
- configure the UE to perform measurements to determine from the plurality of wideband symbols, corresponding signal strengths and interference levels;
- determine a channel gain for the link based on predetermined transmission power and a received transmission power of the second symbol over the link;
- and
- determine whether the predetermined transmission power is to be changed based on a comparison of the link weight for the link and the channel gain for the link to the signal strengths and the interference levels of the plurality of wideband symbols.
Dependencies are inferred from the claim text.