摘要:
The present document provides a method, apparatus, and computer program for determining, in a communication device of a first basic service set comprising a group of communication devices of a wireless telecommunication network, a primary channel of a second basic service set different from said first basic service set. Thereafter, the communication device causes transmission of channel identification information defining a location of at least one channel of the first basic service set from the communication device to the second basic service set on the determined primary channel of the second basic service set.
摘要:
This document provides a solution where a requesting wireless apparatus indicates in a probe request message that the requesting wireless apparatus supports a collision avoidance mechanism that enables a responding wireless apparatus to reduce a number probe response messages by responding to a plurality of probe response messages with a single probe response message.
摘要:
Apparatus, methods and computer program products provide quality of service and power aware forwarding rules for mesh points in wireless mesh networks by monitoring frame flow to and from a first mesh point in the wireless mesh network; and in dependence on the monitored frame flow, setting a power management mode of the first mesh point. The first mesh point monitors, for example, the power save mode and mesh deterministic access status of peer modes and selects power save and frame transmission modes in dependence on the monitored information.
摘要:
In one embodiment, in absence of transmitting from an apparatus a reservation request frame, the apparatus receives a reservation response frame on an assigned channel. The reservation response frame indicates a duration of a frame transmission. In response to receiving the reservation response frame, the apparatus transmits a frame on the assigned channel during the frame transmission. In another embodiment, in response to receiving a reservation request frame on a first channel at an apparatus, the apparatus transmits a reservation response frame on the first channel and on at least one second channel. The reservation request frame indicates a duration of a frame transmission. The reservation response frame indicates the duration of the frame transmission. After transmitting the reservation response frame, this apparatus receives during the frame transmission a first frame on the primary channel and a second frame on the at least one secondary channel.
摘要:
Channel reservation in time division duplex for devices in systems involving, for example user devices and access points, may be accomplished using channel reservation request messages, such as request-to-send (RTS) messages and channel reservation grant messages, such as clear-to-send (CTS) messages. A method for channel reservation may include preparing a frame including at least one channel reservation request message and at least one channel reservation grant message. The preparing may include multiplexing the at least one channel reservation request message and the at least one channel reservation grant message at least by frequency-division multiplexing. The method may also include transmitting the frame from a first node to a second node, wherein the channel reservation request message and the channel reservation grant message relate to communications between the first node and the second node.
摘要:
Method, apparatus, and computer program product embodiments are disclosed to enhance capacity of a wireless communication network through spatial reuse of the shared communication medium, using an autonomous parallel operation without central coordination and header frames. Example embodiments of the invention include a signaling method that defines and sets up a Simultaneous Transmissions mode between two pairs of devices to reuse a transmission opportunity (TXOP). In example embodiments of the invention, an arrangement may be made between device pairs (each pair comprising a transmitter device and a receiver device) to allow selected pairs to communicate at a same time. The example signaling method defines example signaling for setting up simultaneous transmitter/receiver pairs in a network and operating the transmitter/receiver pairs in simultaneous transmission. If a device in a setup pair detects some other transmission than that is not allowed by one of its device pair arrangements, the device ceases its transmission.
摘要:
Service discovery for services on a wireless network is presented. It is determined (e.g., from a received Layer 2 message) that an offering apparatus h made a service available to entities joined to a wireless network. Then in a message, that is available to entities not joined to the network, is placed information about the services and also at least one of location information about the offering apparatus and link metric information about a network path to the offering apparatus. A discovering apparatus reads one or more transmitted messages (from different apparatuses in the same network in different networks), sees the service it wants is available through both, compares the different locations and/or the different link metrics, and based on the comparing chooses which network to join, or with which apparatus on the single network to create a peer link
摘要:
System and method for power saving transmission in a wireless communications networks. In one embodiment, a communications device includes a transceiver configured to transmit or receive frames over a peer communications link to or from another communications device in a wireless communications network. The communications device also includes a controller configured to initiate a service period for transmission of data frames to the another communications device. The controller is also configured to terminate the service period following an acknowledgement to a transmission of a last data frame therein addressed to either the communications device or the another communications device.
摘要:
A mechanism to create Automatic Power Save Delivery (APSD) compatible with 802.11n frame aggregation and block acknowledgement (ack) mechanisms is provided. Various methods of using block acknowledgments are provided. Additionally, bit handling for defining an unscheduled APSD (U-APSD) service period and ending it is explained. A method of aggregating a plurality of data frames into an aggregated data frame, starting a service period based on the transmitting of the aggregated frame, receiving an acknowledgement for the transmitted frame, and upon receiving the acknowledgement frame containing an indicator indicating end of service period, entering low power mode of operation is enabled.
摘要:
Various embodiments are disclosed relating to techniques to provide a new or suggested data transmission schedule in a wireless network. According to an example embodiment, an AP may provide a station with a new (or changed) data transmission schedule or a suggested data transmission schedule to relocate the data transmission or contention start times for stations to a more favorable time (e.g., where there may be a lower probability for collisions with other stations).