H04W52/0238

Method and device for implementing power saving in wireless LAN system
09781670 · 2017-10-03 · ·

The present invention relates to a wireless communication system, and, more particularly, a method and device for implementing power saving in a wireless LAN system are disclosed. A method of implementing power saving by a station (STA) in a wireless LAN system according to an embodiment of the present invention may include the steps of: receiving a plurality of frames from an access point (AP) by means of the station STA that is changed from a sleep state to an awake state; determining whether each of the plurality of frames has an error; and transmitting a response frame representing the presence and absence of the error to the AP. Even if each of the plurality of frames includes information instructing the AP to stop transmitting to the station to the station STA, it is possible to maintain the awake state when at least one of the plurality of frames has an error.

SYSTEMS AND METHODS FOR PRIORITIZING CHANNEL SCANNING
20170245204 · 2017-08-24 ·

A method for Bluetooth low energy (BLE) advertising channel assessment by a wireless communication device is described. The method includes detecting interference on one or more of a plurality of BLE advertising channels. The method also includes determining a BLE scan order in which the BLE advertising channels are selected for scanning based on the detected interference. The method further includes scanning the BLE advertising channels according to the determined BLE scan order.

Method of feeding back MU-CQI in a communication system, transmission point device, and user equipment

There are provided a method, user equipment, and transmission point device for feeding back channel quality indicator (MU-CQI) to the transmission point in a communication system including the transmission point and a plurality of user equipments, the method comprising steps: the transmission point sending a message to an intended user equipment of the plurality of user equipments; and the intended user equipment calculating the MU-CQI based on the message, and feeding back the MU-CQI to the transmission point. The present disclosure enables dynamic MU operation, and improves link adaptation performance with marginal downlink overhead. And the accuracy is not limited by codebook size.

MOTORIZED WINDOW TREATMENT

A motorized window treatment may provide a low-cost solution for controlling the amount of daylight entering a space through a window. The window treatment may include a covering material (e.g., a cellular shade fabric or a roller shade fabric), a drive assembly for raising and lowering the covering material, and a motor drive unit including a motor configured to drive the drive assembly to raise and lower the covering material. The motorized window treatment may comprise one or more battery packs configured to receive batteries for powering the motor drive unit. The batteries may be located out of view of a user of the motorized window treatment (e.g., in a headrail or in a battery compartment). The motorized window treatment may use various power-saving methods to lengthen the lifetime of the batteries, e.g., to reduce the motor speed to conserve additional battery power and extend the lifetime of the batteries.

Method and apparatus for managing failed connection requests for devices in an inactive mode

Aspects of the subject disclosure may include, for example, a network device that receives a failure message from a mobility management entity where the failure message indicates that a first connection request from an application server to an end user device failed based on the end user device being in an inactive mode, where the network device provides to the application server a target time for transmitting a second connection request to the end user device, and where the providing of the target time to the application server causes the application server to cease transmitting connection requests to the end user device until the target time. Other embodiments are disclosed.

RADIO RESOURCE MANAGEMENT IN A TELECOMMUNICATION SYSTEM

Certain communication devices in a telecommunications network may be suitable for providing assistance in supporting other communication devices in comparatively poor radio coverage. The telecommunications network is dynamically adapted to improve overall network performance without requiring the introduction of new network equipment by determining how these communication devices are to be activated/deactivated and maintained. In one example, the dynamic activation/maintenance of the radio coverage assistance serves to reduce problems associated with users at the cell edge, resulting in improvements in overall cell capacity.

Near field user detection using a radar signal analysis associated with a user equipment

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment receives a sliding window of measurements associated with a radar signal transmitted by the UE; determines that a user is within a threshold distance of the UE, wherein the threshold distance is determined to be a first distance when an energy measurement, associated with the radar signal, indicates an energy reduction satisfying a threshold energy reduction, or wherein the threshold distance is determined to be a second distance when the sliding window of measurements indicates an amount of energy variation satisfying a threshold amount of energy variation associated with the radar signal; and performs, based at least in part on determining that the user is within the threshold distance, an action associated with a communication signal of the UE. Numerous other aspects are provided.

Techniques for power saving operations in a wireless network
09736773 · 2017-08-15 · ·

Various embodiments are generally directed to an apparatus, method and other techniques to initiate a transaction session at a transaction session start time to communicate a transaction between a first device and a second device, receive a first frame comprising information indicating an occurrence of another transaction session between other devices and a time reservation to reserve time for the other transaction session, receive a second frame comprising second information indicating a truncation of the other transaction session at a truncation time and before an expiration of the time reservation, and shift a subsequent transaction session start time for at least one subsequent transaction session between the first device and the second device based on a difference between the transaction session start time and the truncation time.

Radio Resource Management Method, Apparatus, and System
20170230160 · 2017-08-10 ·

Embodiments of the present invention provide a radio resource management method, apparatus, and system and relate to the field of wireless communications technologies. The apparatus includes a determining module, configured to determine that a state of a secondary cell for user equipment (UE) needs to be changed to an uplink-enabled and downlink-disabled state. The apparatus also includes a change module, configured to change the state of the secondary cell, so that the state of the secondary cell is the uplink-enabled and downlink-disabled state, where when the state of the secondary cell is the uplink-enabled and downlink-disabled state, an uplink signal can be received in the secondary cell by a base station to which the secondary cell belongs, a downlink signal can be transmitted by the base station to which the secondary cell belongs only in a subframe for transmitting a discovery reference signal (DRS) in the secondary cell.

METHOD AND APPARATUS FOR DETECTING PACKET

Disclosed is a method and apparatus to detect an intended packet by a sliding intermediate frequency (SIF) coherent ultra low power (ULP) wireless receiver. The method includes detecting a transition from a noise period to a signal period in a pair of input sequences received, dynamically adjusting a gain of the pair of input sequences in response to the signal period being initiated, distinguishing an intended packet from packets received in preambles included in the pair of input sequences, and compensating for a carrier frequency offset of the intended packet in the signal period.