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US 10,314,102 B2Granted
Device-to-device transmissions
AssigneeNokia Solutions and Networks Oy
InventorsVinh Van Phan, Ling Yu, Kari Veikko Horneman, Zexian Li
Life of this patent
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Abstract
A method, including receiving at a first communication device from a first network information for assisting device-to-device transmissions between a group of communication devices including said first communication device; thereafter detecting at said first communication device loss of possibility to continue receiving assistance for said device-to-device transmissions from said first network; and deciding at said first communication device whether to continue with said device-to-device transmissions with assistance from a second network or without assistance from a second network.
Claims18
A method, comprising:
- performing, at a first communication device, device-to-device transmissions with a second communication device, where a group of communication devices comprises the first communication device and the second communication device;
- receiving, at the first communication device from a base station of a first network, resource information for assisting the device-to-device transmissions;
- thereafter detecting, at said first communication device, loss of possibility to continue receiving the resource information for assisting said device-to-device transmissions from said first network;
- detecting, at said first communication device, there is a second network operating on a carrier overlapping with pre-configured resources for device-to-device transmissions of said first communication device;
- and
- deciding, at said first communication device, to continue with said device-to-device transmissions with either resource assistance from the second network or to use the pre-configured resources without assistance from the second network.
3 more elements
A method according to claim further comprising:
- receiving, at said first communication device from said second network, information facilitating said deciding at the first communication device.
A method according to claim comprising:
- deciding to continue with said device-to-device transmissions with assistance from said second network;
- transmitting, to the second network, information about a provisional selection of resources for a resource pool for said device-to-device transmissions;
- and
- receiving, at said first communication device from said second network, an indication to proceed with use of said provisional selection of resources for said device-to-device communications or an indication of a different selection of resources for said device-to-device transmissions.
1 more element
A method, comprising:
- providing resource information from a first network to a first communication device performing device-to-device transmissions with a second communication device, where a group of communication devices comprises the first communication device and the second communication device;
- deciding at the first network whether or not to keep the first communication device in a connected state;
- in response to determining that the first communication device is to be kept in the connected state, transmit the resource and/or scheduling information to the first communication device for assisting the continuation of the device-to-device transmissions;
- and
- in response to determining that the first communication device is not to be kept in the connected state, transmit an indication to the first communication device to continue the device-to-device transmissions using pre-configured resources for device-to-device transmissions of said first communication device,
- wherein the determining of whether the first communication device is to be kept in the connected state is based at least partially on whether there is a second network operating on a carrier overlapping with the pre-configured resources.
3 more elements
An apparatus comprising:
- a processor and non-transitory memory comprising computer program code, wherein the non-transitory memory and computer program code are configured to, when executed with the processor, cause the apparatus to:
- perform, at a first communication device, device-to-device transmissions with a second communication device, where a group of communication devices comprises the first communication device and the second communication device;
- receive, at the first communication device from a base station of a first network, resource information for assisting the device-to-device transmissions;
- thereafter detect, at said first communication device, loss of possibility to continue receiving the resource information for assisting said device-to-device transmissions from said first network;
- detect, at said first communication device, there is a second network operating on a carrier overlapping with pre-configured resources for device-to-device transmissions of said first communication device;
- and
- decide, at said first communication device, to continue with said device-to-device transmissions with either resource assistance from the second network or to use pre-configured resources without assistance from the second network.
4 more elements
An apparatus comprising:
- a processor and non-transitory memory including computer program code, wherein the non-transitory memory and computer program code are configured to, when executed with the processor, cause the apparatus to:
- provide resource and/or scheduling information from a first network to a first communication device performing device-to-device transmissions with a second communication device, where a group of communication devices comprises the first communication device and the second communication device;
- decide at the first network whether or not to keep the first communication device in a connected state;
- in response to a determination that the first communication device is to be kept in the connected state, transmit the resource and/or scheduling information to the first communication device for assisting the continuation of the device-to-device transmissions;
- and
- in response to a determination that the first communication device is not to be kept in the connected state, transmit an indication to the first communication device to continue the device-to-device transmissions using pre-configured resources for device-to-device transmissions of said first communication device,
- wherein the determination of whether the first communication device is to be kept in the connected state is based at least partially on whether there is a second network operating on a carrier overlapping with the pre-configured resources.
4 more elements
A non-transitory computer readable memory having computer program code stored thereon, for causing an apparatus to:
- perform, at a first communication device, device-to-device transmissions with a second communication device, where a group of communication devices comprises the first communication device and the second communication device;
- receive, at the first communication device from a base station of a first network, resource information for assisting the device-to-device transmissions;
- thereafter detecting, at said first communication device, loss of possibility to continue receiving the resource information for assisting said device-to-device transmissions from said first network;
- detecting, at said first communication device, there is a second network operating on a carrier overlapping with pre-configured resources for device-to-device transmissions of said first communication device;
- and
- decide, at said first communication device, to continue with said device-to-device transmissions with either assistance from the second network or to use pre-configured resources without assistance from the second network, wherein the deciding is based at least on whether the second network is detected.
3 more elements
Dependencies are inferred from the claim text.