Abstract:
Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method for synchronizing a wireless communication apparatus is provided. The method includes selectively updating a time value of the wireless communication apparatus in response to receiving one or more received synchronization messages from other wireless communication apparatuses during the discovery interval, the one or more received synchronization messages comprising one or more received timestamps of the other wireless communication apparatuses, wherein selectively updating the time value comprises updating based on one or more criteria and the received timestamps, and transmitting the synchronization message in response to determining an absence any received synchronization messages during the discovery interval.
Abstract:
Methods, systems, and devices are described for signaling soft time division multiplexing (TDM) assignment information in an enhanced distributed channel access (EDCA) operation. The soft TDM assignment may be sent to one or more nodes of a group of nodes to communicate with indicated priority access parameters during at least one of a plurality of time slots. The soft TDM assignment may also convey one or more backoff operation rules to at least one of the one or more nodes. Further, primary and secondary non-concurrent nodes may be identified and a signal sent to the secondary node for it to communicate, at a different priority than the primary node, during at least one of a plurality of non-concurrent time slots the primary node is communicating during.
Abstract:
Techniques for switching a user equipment (UE) between wireless systems by first establishing a connection with a target system before disconnecting from a serving system are disclosed. In one design, the UE may initially communicate with a first wireless system (e.g., a WLAN system) of a first radio technology. The UE may receive a page to establish a connection with a second wireless system (e.g., a cellular system) of a second radio technology. The first and second wireless systems may be part of a small cell. The page may be sent by the second wireless system to the UE in response to a decision by a network entity to switch the UE from the first wireless system to the second wireless system. The UE may establish a connection with the second wireless system in response to the page and may thereafter terminate communication with the first wireless system.
Abstract:
Methods, devices, and computer program products for synchronization of wireless devices in a peer-to-peer network are described herein. In one aspect, a method for synchronizing a wireless communication apparatus is provided. The method includes receiving, at the wireless communication apparatus, one or more messages including one or more received time values. The method further includes updating a time value of a clock signal of the wireless communication apparatus to a value derived from the received time values in response to determining that a magnitude of a difference between the time value and the derived time value is greater than a threshold.
Abstract:
According to one or more embodiments of the present disclosure, a method for autonomously adapting a discovery packet (DP) transmission frequency comprises: calculating, by an electronic processor of a device of a plurality of devices in a system, a DP transmission cycle “N”, wherein the calculating further comprises: broadcasting, by the device, its own observed device number in a DP; decoding, by the electronic processor of the device, an observed device number from DPs of each detectable device of the plurality of devices in the system; computing, by the electronic processor of the device, a final observed device number for the system wherein the final observed device number is a maximum (“M”) of its own observed device number and all decoded observed device numbers from DPs of the detectable devices; and based on the computed maximum (“M”), determining, by the electronic processor of the device, the DP transmission cycle “N”.
Abstract:
Systems, methods, and devices for wireless communication are described herein. In some aspects, a method includes determining one or more classes of compatible transmissions from one or more wireless devices. The method further includes defining scheduled time slots for each of the one or more classes. The method further includes defining a channel access procedure associated with each of the scheduled time slots. The method further includes accessing a wireless medium during an associated scheduled time slot according to the channel access procedure by one or more of the wireless devices.
Abstract:
The present disclosure presents methods and apparatuses for improved wireless node transmission of advertising beacons based on, for example, the presence of sufficient wireless node resource availability and one or more user equipment (UE) wakeup schedules. For example, the present disclosure describes example methods of advertising beacon transmission by a wireless node, which may include determining that a resource availability opportunity exists for supporting a UE at the wireless node. In another aspect, methods may include tuning to a non-serving channel based on determining that the resource availability opportunity exists. According to such example methods, the non-serving channel may be different from a serving channel of the wireless node. Furthermore, the example methods may include transmitting an advertising beacon on the non-serving channel. Upon successful receipt of the advertising beacon, the UE may scan for the serving channel of the wireless node for subsequent wireless network access.
Abstract:
Methods, devices, and computer program products for selective scanning of ad-hoc networks are described herein. In one aspect, a method includes receiving a message identifying a number of times the message has been forwarded. The method further includes selectively scanning for other ad-hoc networks based on the identified number. In one aspect, a root device for an ad-hoc network is responsible for generating synchronization messages for nodes of the ad-hoc network. The synchronization message includes a count of the number of times the synchronization message has been forwarded. When the hop count reaches a limit, the synchronization message is no longer retransmitted or forwarded by receiving nodes. Nodes receiving this message may recognize they are positioned near the edge of the ad-hoc network. In at least one embodiment, these nodes may selectively scan for other ad-hoc networks based on the hop count reaching or exceeding a predetermined threshold.
Abstract:
Systems, methods, and devices for communicating in a wireless network are provided. In some aspects, an access point may comprise a receiver configured to receive an access request message from a wireless station, the message comprising an indication of a plurality of network connection available to the wireless station including a link to a second access point. The receiver may be further configured to receive connectivity information associated with the link, based on the indication, from the second access point. The access point may further comprise a processor configured to determine whether to grant access to the wireless station based, at least in part, on the indication and the connectivity information, and a transmitter configured to transmit a response to the wireless station based on the determining.
Abstract:
Methods, systems, and devices are described for network directed system selection. A wireless device may identify a trigger associated with system selection by a network device for the wireless device. The wireless device may identify system selection data for use by the network device in performing a network directed system selection decision for the wireless device. The system selection data may include an indication of one or more networks through which the wireless device has verified that data access is available to the wireless device. The system selection data may be transmitted from the wireless device to a first network for use by the network device. The system selection data may be transmitted in response to the identified trigger.