Abstract: A method includes determining, at an electronic device, information associated with a location of the first electronic device. An initial set of television white space channels is filtered based on the information to generate a search set of television white space channels. A passive scan of the search set of television white space channels is performed at the electronic device to identify a television white space access point.

Abstract: A method includes receiving discovery messages from respective devices of an ad-hoc wireless network. The messages are received by a first device in the ad-hoc wireless network prior to a particular discovery interval. The discovery messages include information identifying the respective devices. The method further includes caching the information identifying the respective devices. During the particular discovery interval, a first discovery message is sent. The first discovery message includes a request to reserve a paging interval during the particular discovery interval. The first discovery message further includes an indication of the information.

Abstract: Certain aspects of the present disclosure relate to techniques for constructing a VHT-SIG field of a transmission preamble in a manner that may reduce peak-to-average power ratio (PAPR) of the transmission.

Abstract: Systems, methods, and devices for communicating in a wireless network are described herein. In an aspect, a method of transmitting a data unit includes generating a data unit. The data unit includes one or more short training field (STF) sequences. The method further includes encoding each of the STF sequences with a pseudo-random spreading code. The code is based on an addressee of the data unit. The method further includes transmitting, at a transmitter, the data unit over a wireless channel. In another aspect, a method of processing a data unit includes receiving, at a receiver, a data unit. The data unit includes one or more STF sequences. The method further includes determining whether the data unit comprises one or more differentially encoded symbols. The method further includes receiving one or more long training field (LTF) sequences when the data unit does not comprise one or more differentially encoded symbols.

Abstract: Systems and methods of wireless communication are described. One method includes transmitting an indication of a time window for determining a range for wireless communication between a first device and a second device. The method further includes determining the range between the first device and the second device at the indicated time window.

Abstract: Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal. The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.

Abstract: Systems and methods for allowing group access to the wireless medium of a wireless network are disclosed. In one aspect, the method includes performing a backoff procedure for each of one or more certain classes. The method may further include receiving an indication that the backoff procedure for at least one of the one or more certain classes is complete. In some aspects, once the backoff procedure for a class is completed, performing one or more transmissions which are transmittable simultaneously with other transmissions in the class. Finally, the method may update the backoff procedures for the class based on the one or more transmissions. In some aspects, the backoff procedures may be updated based on certain fairness conditions.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for multi user bar protocols and frames. According to certain aspects, an apparatus is provided for wireless communications. The apparatus generally includes a processing system configured to determine that a plurality of devices have a first capability and generate a multi-user (MU) packet that solicits an immediate response from a plurality of the devices, wherein the immediate response comprises an acknowledgment (ACK) or block ACK (BA) and an interface configured to output the MU packet for transmission.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for multi user bar protocols and frames. According to certain aspects, an apparatus is provided for wireless communications. The apparatus generally includes a processing system configured to determine that a plurality of devices have a first capability and generate a multi-user (MU) packet that solicits an immediate response from a plurality of the devices, wherein the immediate response comprises an acknowledgment (ACK) or block ACK (BA) and an interface configured to output the MU packet for transmission.

Abstract: Devices and methods for synchronized group messaging in a wireless communication system are described. Multicast transmissions, such as those in a dense network, can cause significant medium usage because same multicast packet is likely sent by multiple APs at different time. Medium usage in such implementations may be redundant. As such, the transmission medium is not used optimally. Devices and methods which coordinate and align group messages (e.g., multicast packets) amongst APs are described. Each AP may be configured to transmit identical packets at the same time. Therefore, medium usage can be reduced, while the range can be extended due to accumulated energy from APs.

Abstract: The present application relates generally to wireless communications, and more specifically to systems, methods, and devices for deferral based on transmission opportunity (TXOP) information. One aspect of the present disclosure provides An apparatus configured to wirelessly communicate. The apparatus includes a processing system configured to obtain a deferral-related parameter from a packet transmitted on a shared wireless access medium and decide whether to defer transmission on the shared wireless access medium based, at least in part, on the at least one deferral-related parameter.

Abstract: A communication device for allocating tones is described that includes a processor and instructions in memory in electronic communication with the processor. The communication device determines whether a bandwidth for signal transmission is 20, 40, 80 or 160 megahertz (MHz). The communication device respectively allocates tones for 20, 40, 80 or 160 MHz as follows: for a very high throughput (VHT) signal A1 (VHT-SIG-A1): 52, 104, 208, 416; a VHT signal A2 (VHT-SIG-A2): 52, 104, 208, 416; a VHT short training field (VHT-STF): 12, 24, 48, 48; one or more VHT long training field(s) (VHT-LTF(s)): 56, 114, 242, 484; a VHT signal B (VHT-SIG-B): 56, 114, 242, 484; and a data field (DATA): 56, 114, 242, 484. The communication device also transmits the signal.

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: Methods and apparatus for channel state information feedback are provided. In one aspect, a request to two or more stations is transmitted for the two or more stations to transmit channel state information in response to the request. The channel state information is received from each of the two or more stations.

Abstract: A wireless network uses an improved frame structure to increase timing acquisition capabilities as well as reduction of spectral lines. In one aspect, the frame packet can be used to communicate the different modes of operation under which the packet was created.

Abstract: A particular method includes receiving a power save polling frame from a station at an access point. The method also includes, in response to receiving the power save polling frame, transmitting a frame from the access point to the station indicating whether traffic associated with the station is buffered at the access point. Another particular method includes transmitting a frame from the station to the access point indicating that the station is to enter the power save mode and refraining from entering the power save mode until receipt of an end of data frame. Yet another particular method includes receiving a fetch trigger frame at an access point and refraining from transmitting one or more fetched data frames from the access point until a fetch time has elapsed or a delivery trigger frame is received. The access point is configured to communicate with other stations during the fetch time.

Abstract: Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices.

Abstract: An apparatus including a configurable demodulation architecture which includes a control module and a demodulation engine. The control module includes a set of one or more control fields. The demodulation engine includes a spatial whitening module, a Minimum Mean Square Estimation (MMSE) module, at least a first Maximal Ratio Combining (MRC) module, and at least one multiplexer. Further, the multiplexer is coupled to the instruction module and controlled based on the control fields to select at least one of the MMSE module or MRC module.

Abstract: In a particular embodiment, a method includes applying a first stream to antenna mapping scheme to a preamble portion of a packet. The method further includes applying a second stream to antenna mapping scheme to a data portion of the packet. The second stream to antenna mapping scheme is applied to the data portion of the packet but not to the preamble portion of the packet. The second stream to antenna mapping scheme includes a circulation scheme or a cyclic delay diversity (CDD) scheme.

Abstract: Certain aspects of the present disclosure relate to techniques for medium reservation in the case of multi-user (MU) communications. Multiple mechanisms are supported for protecting MU transmissions, wherein appropriate control messages can be exchanged between an access point and served user stations before transmitting downlink data packets.