Contention-based Integration of Device to Device (D2D) Networks with Wireless Infrastructure
First Claim
1. A method for device to device (D2D) link establishment, the method comprising:
- broadcasting, by a mobile station, a search message requesting D2D discovery;
receiving, by the mobile station, an offer message from a neighboring mobile station, the offer message offering to facilitate an indirect connection between the mobile station and a wireless access point (AP); and
establishing the indirect connection between the mobile station and the wireless AP, wherein the indirect connection includes one or more D2D interfaces and a device to infrastructure (D2I) interface.
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Accused Products
Abstract
Efficient D2D link integration can be achieved by allowing mobile devices to independently initiate D2D/connection-proxy discovery without re-broadcasting beacons originating from the wireless access point. A mobile station wanting to establish a D2D link may broadcast a search message to neighboring mobile stations, which may return offer messages specifying a connection quality and/or parameters of the candidate indirect connection. The requesting mobile station may then select one of the responding neighboring mobile stations through which to establish the indirect connection. Responding mobile stations may delay offer message transmission by a period that is proportional to a connection quality to reduce offer message redundancy.
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Citations
31 Claims
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1. A method for device to device (D2D) link establishment, the method comprising:
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broadcasting, by a mobile station, a search message requesting D2D discovery; receiving, by the mobile station, an offer message from a neighboring mobile station, the offer message offering to facilitate an indirect connection between the mobile station and a wireless access point (AP); and establishing the indirect connection between the mobile station and the wireless AP, wherein the indirect connection includes one or more D2D interfaces and a device to infrastructure (D2I) interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A mobile station comprising:
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a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; broadcast a search message requesting D2D discovery; receive an offer message from a neighboring mobile station, the offer message offering to facilitate an indirect connection between the mobile station and a wireless access point (AP); and establish the indirect connection between the mobile station and the wireless AP, wherein the indirect connection includes one or more D2D interfaces and a device to infrastructure (D2I) interface.
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16. A method for device to device (D2D) link establishment, the method comprising:
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receiving, by a device, a search message from a requesting mobile station, the search message for discovering radio connections to a wireless access point (AP); setting, by the device, a delay timer in accordance with a connection quality of a candidate connection; determining, by the device, whether the requesting mobile station sends a connection request message to establish a direct or indirect connection with the wireless AP prior to expiration of the delay timer; and sending, by the device, an offer message to the requesting mobile station if the requesting mobile station fails to establish a direct or indirect connection with the wireless AP prior to expiration of the delay timer, wherein the offer message indicates an offer by the device to facilitate the candidate connection. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A device comprising:
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a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; receive a search message from a requesting mobile station, the search message for discovering wireless connections to a wireless access point (AP); set a delay timer in accordance with a connection quality of a candidate connection; determine whether the requesting mobile station sends a connection request message to establish a a direct or indirect connection with the wireless AP prior to expiration of the delay timer; and send an offer message to the requesting mobile station if the requesting mobile station fails to establish a direct or indirect connection with the wireless AP prior to expiration of the delay timer, wherein the offer message indicates an offer by the device to facilitate the candidate connection.
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29. A method for updating connection proxies in a wireless network adapted to support device to device (D2D) communications, the method comprising:
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associating, by a mobile station, a connection proxy with a first connection between the mobile station and a wireless access point (AP), the first connection extending through a first neighboring mobile station; detecting, by the mobile station, a connect message communicated by a second neighboring mobile station to a device, the connect message including connection quality information for a connection extending from the second neighboring mobile station to the wireless AP; determining, by the mobile station, whether second indirect connection capable of being established through the second neighboring mobile station offers a higher connection quality than the first connection; and re-associating, by the mobile station, the connection proxy with the second indirect connection if the second indirect connection offers a higher connection quality than the first connection. - View Dependent Claims (30)
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31. A mobile station comprising:
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a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; associate a connection proxy with a first connection between the mobile station and a wireless access point (AP), the first connection extending through a first neighboring mobile station; detect a connect message communicated by a second neighboring mobile station to a device, the connect message including connection quality information to a connection; determine whether a second indirect connection capable of being established through the second neighboring mobile station offers a higher connection quality than the first connection; and re-associate the connection proxy with the second indirect connection if the second indirect connection offers a higher connection quality than the first connection.
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Specification