Abstract:
A Spatial Multiple Access Uplink for Wireless LANs is generally described herein. A novel FD-MiMAC, protocol leverages full duplex functionality at the Access Point, can be incrementally deployed with current 802.11 Access Point and client devices, can be easily implemented by client devices in a distributed and contention based manner, and pairs users in uplink MU-MIMO to enhance system performance. A method for spatial multiple access uplink in a wireless local area network comprises announcing, by an Access Point (AP), its available remaining antenna capability, receiving, by the AP, a packet header frame transmitted by a winning client uplink contender, allocating, by the AP, uplink resources for the winning client uplink contender and immediately announcing its remaining antenna capability, and transmitting, by the AP, at the end of a winning client's transmission burst, an Acknowledge-to-All frame, whereby other clients may simultaneously restart contention for transmission of next frames.
Abstract:
Methods and apparatus to coordinate multiple access point scheduling and transmission disclosed. An example apparatus includes a connection analyzer to perform a signal measurement at a first station based on a signal from a second station; and when the signal measurement exceeds a threshold, group the first station with the second station; and an interface to transmit an indication of the grouping to an access point, a server to schedule communications between the access point and the first station based on the grouping.
Abstract:
Embodiments of an Evolved Node-B (eNB), User Equipment (UE) and methods for communication are generally described herein. The eNB may generate a plurality of adaptive codebooks based on a base codebook. Each adaptive codebook may be generated for a different beam-width for directional transmissions by an antenna array. The adaptive codebooks may be generated based at least partly on matrix products of a first matrix based at least partly on a configurable broadening factor and a second matrix that includes codewords of the base codebook. A predetermined plurality of broadening factor values may be used in the first matrix to produce the different beam-widths for the adaptive codebooks.
Abstract:
For cell acquisition a UE receives concurrently from a base station (BS), during a single time symbol, a cell ID via a plurality of electromagnetic beams that include data signals and spatial-frequency multiplexed orthogonal synchronization signals, the beams having different angles of arrival. The UE processes the beams to determine the identity of the beam that was received with maximum signal strength and the angle of arrival of the beam, and transmits the identity and the angle of arrival to the BS. For beam tracking the UE similarly receives a plurality of the same beams but including reference signals, each beam transmitted at the same power and received at different angles of arrival. The plurality of beams comprise a central beam and pairs of beams on either side of the central beam, the pairs respectively arranged at differing equal angles of arrival from the central beam. The UE processes the beams in parallel to track movement of the UE by determining the identity of the beam received with maximum signal strength and the angle of arrival of the beam, by using the central beam and the pairs of beams. The UE transmits the identity and the angle of arrival to the BS.
Abstract:
This disclosure describes systems, methods, and devices related to customer premises equipment (CPE) signaling. A device may cause to convert backend 5G QoS identifier (5QI) values to differentiated services code point (DSCP). The device may cause to send a signal to at least one station device (STA) in a front end with the coversion.
Abstract:
This disclosure describes systems, methods, and devices related to fast transition Wi-Fi roaming operations. A device may generate, during a first association of the device to a first access point, a request to authenticate the device to a second access point; send, during the first association, the request to authenticate; receive, during the first association, a response indicating that the device is authenticated to the second access point; generate, during the first association, a reassociation request to the second access point; determine that a time between sending the request to authenticate and generating the reassociation request is less than a threshold time; send, based on the determination that the time is less than the threshold time, the reassociation request to the second access point; and receive a reassociation response indicative of a second association of the device to the second access point.
Abstract:
A technology that is operable to schedule data transfer for a multiple user multiple-input and multiple-output (MU-MIMO) communications network is disclosed. In one embodiment, an enhanced node B (eNode B) is configured with circuitry configured to receive a sounding signal from each of a plurality of user equipment (UEs). One or more major paths of the sounding signals from each of the plurality of UEs are determined. An angle of arrival (AoA) is determined that is associated with each of the one or more major paths. The plurality of UEs are grouped into one or more candidate MU-MIMO sets using the AoAs associated with each of the one or more major paths. Data transmissions are scheduled for one or more of the candidate UEs of the candidate MU-MIMO set on one or more of the major paths of each of the candidate UEs.
Abstract:
A method of processing signals may include calculating a covariance matrix and a correlation vector based on an input signal vector and an output signal vector; identifying a plurality of critical elements of a parameter vector based on a predefined criteria, wherein the parameter vector describes a relationship between the input signal vector and the output signal vector; calculating a solution to a linear system to generate a reduced parameter update vector having a plurality of elements, wherein the linear system is based on the plurality of critical elements of the parameter vector, the covariance matrix, and the correlation vector; updating the plurality of critical elements of the parameter vector using the reduced parameter update vector to generate an updated parameter vector, wherein the reduced parameter update vector has less elements than the parameter vector; and processing one or more signals associated with the input signal vector using the updated parameter vector.
Abstract:
This disclosure describes systems, methods, and devices related to Wi-Fi low-latency handover operations. A Wi-Fi device may identify, when the Wi-Fi device is associated to a first access point (AP), a second AP to which to transfer connection; transmit, to the first AP or the second AP, when the Wi-Fi device is associated to the first AP, a request to transfer connection to the second AP; identify a response, received from the first AP or the second AP, indicating that the second AP is available to transfer connection from the first AP to the second AP; transmit an association request to the first AP or to the second AP, the association request indicating a request to associate to the second AP; and identify an association response, received from the first AP or from the second AP, indicating that the Wi-Fi device is associated to the second AP.