Techniques for mobile device speaker control are described, including detecting a device within a proximity of a speaker box coupled to a data network, filtering a data packet received from the device to determine a received signal strength associated with the device, comparing the received signal strength to a threshold, and determining whether an action is to be performed based on a result of the comparing the received signal strength to the threshold.

Mobile device speaker control

Techniques for inter-cell interference cancellation are disclosed. At each transmitter, the data (message) may split into two or more layers, (e.g., common and private parts), and may be encoded in different rates, allocated with different powers, possibly beamformed using different precoders, and transmitted through the same physical channels. The common part is to be decoded at both the intended and unintended users, while the private part is to be decoded at the intended user.

Method and apparatus for interference mitigation via successive cancellation in heterogeneous networks

According to one embodiment, a wireless communication device includes: a receiver that configured to receives a first frame; and a transmitter that configured to transmits a second frame including a first identifier and acknowledgement information on the first frame, the first identifier being extracted from a predetermined field of the first frame and being different from a source address of the first frame.

Wireless communication device

Techniques are provided for cloning a computer desktop to a wireless display surface. A source computer and a display in communication with a destination computer establish a wireless connection. A user console session of the source computer has a virtual display driver that corresponds to the wireless display. An application of the console session instructs the virtual display driver to render graphics to a display surface. The source computer takes this graphical information that, when executed on a processor generate an image, text, sound or input - encodes it with a remote presentation protocol. Through encoding and decoding image data, text, sound, and input of the user console session transmitted to a wireless display with a remote presentation protocol, fidelity and interactivity are improved.

Cloning or extending a computer desktop on a wireless display surface

Techniques are disclosed for window sharing with occlusion removal. In an embodiment, the techniques begin with a blank composition image, to which shared windows are added. For each window of a desktop from which at least one window is shared, traversing the windows from greatest z-depth to least z-depth, the window is processed based on whether it is shared and is occluded. Shared windows are copied to the composition image. Where a part of a shared window is occluded and cannot be retrieved, an indication of this occlusion is added to the composition image. When the windows have been processed, the composition image is encoded and sent to a client computer where it is displayed to produce the window sharing between computers.

Application sharing with occlusion removal

In an 802.11ax network with an access point, a trigger frame offers random resource units to nodes for data uplink communication to the access point. To dynamically adapt the contention mechanism used by the nodes to access the random resource units, the AP updates a correcting TBD parameter at each new TXOP and includes the updated adjusting parameter in the trigger frame for the next TXOP. The nodes use the TBD parameter to generate a local random RU backoff value from a contention window range, for contending for access to the random resource units. The TBD parameter may directly impact the contention window size CWO or boundaries values of a selection range from which CWO is selected.

Improved contention mechanism for access to random resource units in an 802.11 channel

In 802.11ax networks with access points, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access points. To make more effective the usage of the network, the access point may design the trigger frame to force the nodes to send some categories of data. Resource units may be defined in trigger frames to be dedicated to small packets or to some access category data. Adjusting the time length of the resource units helps restricting the type of data that can be conveyed by the resource units. Also, using various frequency widths for resource units in the same trigger frame helps reducing padding in the resource units when various traffic types coexist.

Trigger frames adapted to packet-based policies in an 802.11 network

The disclosure provides an acknowledgement of data received by a communication device, the data being received by data packets, with each data packet comprising a plurality of data blocks. The communication device determines, for a data packet, a number of data blocks whose data can be processed correctly. The communication device further sends an acknowledgement for at least one data block in the data packet if the number of data blocks whose data can be processed correctly is between a first and a second threshold. The communication device also sends, for the data packet, a piece of information at packet level representing the number of data blocks whose data can be processed correctly if the number of data blocks whose data can be processed correctly is lower than the first threshold or higher than the second threshold.

Method and a device for acknowledging data received by a communication device in a communication network

The invention pertains to a method for determining a sequence of access (300) to a communications network (100) by a plurality of nodes (101, 102, 103, 5 104, 107) of said communications network (100) in the context of the broadcasting of a data content by a transmitter node (101) to a set of receiver nodes (103, 107, 104, 102), at least one receiver node (102, 104) having to receive said content by means of another receiver node (103, 107), called a relay receiver node.

Method for determining a sequence of access to a communications network, corresponding computer program product, storage means and devices

The invention relates to wireless network comprising an access point and non-AP stations. The station has traffic queues and associated a backoff counters which are decremented over time upon continuously sensing the medium as free during more than respective AIFS durations. To compensate additional opportunities provided by OFDMA RUs, a queue switches to an MU mode upon transmitting its data in an RU provided by the AP. To restore dynamicity of the backoff counters, frozen in the MU mode in the known techniques, embodiments provide the following at each expiry of one of the queue backoff counters: the current mode of the expiring traffic queue is determined; in case of legacy mode, the station accesses the channel to transmit data from the queue; whereas in case of MU mode, a new backoff value is drawn to reset the expiring backoff counter, without having data from the queue being transmitted.

Nezou Patrice

Papers

Improved contention mechanism for access to random resource units in an 802.11 channel

Trigger frames adapted to packet-based policies in an 802.11 network

Method and a device for acknowledging data received by a communication device in a communication network

Method for determining a sequence of access to a communications network, corresponding computer program product, storage means and devices

QoS management for multi-user EDCA transmission mode in 802.11ax networks