Peer to peer mobile user equipment communication with on-demand discovery signal transmission
First Claim
1. A user equipment device (UE), comprising:
- at least one antenna for performing wireless cellular communication;
at least one radio communicatively coupled to the at least one antenna, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT);
one or more processors communicatively coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform wireless voice and/or data communications using the at least one antenna;
wherein the one or more processors and at least one radio are configured to;
receive one or more discovery channels from a base station;
transmit, in response to determining that the UE has moved greater than a threshold amount since transmission of a prior discovery request signal to neighboring UEs, a discovery request signal over a discovery request channel to the neighboring UEs, wherein the discovery request signal is configured to cause one or more of the neighboring UEs to transmit a discovery signal in response thereto, and wherein the threshold amount comprises a specified distance since the transmission of the prior discovery request signal; and
receive, over at least one of the one or more discovery channels, discovery signals from one or more of the neighboring UEs in response to transmission of the discovery request signal;
wherein the received discovery signals from one or more of the neighboring UEs are useable to discover one or more of the neighboring UEs.
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Accused Products
Abstract
In some embodiments, a user equipment device (UE) implements a method for discovering the presence of neighboring UEs using an on-demand discovery signal transmission technique. This discovery process may be performed to enable the UEs to perform peer-to-peer communications with each other, wherein peer-to-peer communications is defined as direct communication between the UEs without involving a base station. The UE may be configured to transmit a discovery request signal when it has moved greater than a threshold amount since transmission of a prior discovery request signal. The discovery request signal causes one or more neighboring UEs to each transmit a discovery signal in response, and also causes the UE which generated the discovery request signal to transmit its own discovery signal. The received discovery signal from each of the neighboring UEs is useable to discover, or detect the presence of, these neighboring UEs.
12 Citations
20 Claims
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1. A user equipment device (UE), comprising:
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at least one antenna for performing wireless cellular communication; at least one radio communicatively coupled to the at least one antenna, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT); one or more processors communicatively coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform wireless voice and/or data communications using the at least one antenna; wherein the one or more processors and at least one radio are configured to; receive one or more discovery channels from a base station; transmit, in response to determining that the UE has moved greater than a threshold amount since transmission of a prior discovery request signal to neighboring UEs, a discovery request signal over a discovery request channel to the neighboring UEs, wherein the discovery request signal is configured to cause one or more of the neighboring UEs to transmit a discovery signal in response thereto, and wherein the threshold amount comprises a specified distance since the transmission of the prior discovery request signal; and receive, over at least one of the one or more discovery channels, discovery signals from one or more of the neighboring UEs in response to transmission of the discovery request signal; wherein the received discovery signals from one or more of the neighboring UEs are useable to discover one or more of the neighboring UEs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for providing improved communication performance in a cellular communication system, the method comprising:
performing by a user equipment (UE), receiving one or more discovery channels from a base station; transmitting, in response to determining that the UE has moved greater than a threshold amount since transmission of a prior discovery request signal to neighboring UEs, a discovery request signal over a discovery request channel to the neighboring UEs, wherein the discovery request signal is configured to cause one or more of the neighboring UEs to transmit a discovery signal in response thereto, and wherein the threshold amount comprises a specified distance since the transmission of the prior discovery request signal; and receiving, over at least one of the one or more discovery channels, discovery signals from one or more of the neighboring UEs in response to transmission of the discovery request signal; discovering one or more of the neighboring UEs based on the received discovery signals from the one or more neighboring UEs; and communicating with at least one of the neighboring UEs discovered in said discovering in a peer-to-peer manner. - View Dependent Claims (13, 14, 15)
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16. A user equipment (UE) device, comprising:
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at least one antenna for performing wireless cellular communication; at least one radio coupled to the at least one antenna, wherein the at least one radio is configured to perform cellular communication using at least one radio access technology (RAT); one or more processors coupled to the at least one radio, wherein the one or more processors and the at least one radio are configured to perform wireless voice and/or data communications using the at least one antenna; wherein the one or more processors and at least one radio are configured to; monitor one or more discovery request channels in a discovery resource set, wherein the one or more discovery request channels are assigned to the UE by a base station; determine that the UE has moved greater than a threshold amount since transmission of a prior discovery request signal to neighboring UEs, wherein the threshold amount comprises a specified distance since the transmission of the prior discovery request signal to the neighboring UEs; determine whether a discovery request signal relevant to the UE is received from one or more of the neighboring UEs on the discovery request channels; and transmit a discovery signal on a discovery channel in the discovery resource set in response to one of determining that the discovery request signal relevant to the UE is received and determining that the UE has moved greater than a threshold amount since transmission of the prior discovery request signal; wherein the discovery signal is useable by the neighboring UEs in discovering a presence of the UE. - View Dependent Claims (17, 18, 19, 20)
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Specification