Hewlett Packard Enterprise Development LP

Aruba Networks, Inc.

Farhan Hasnain

Deven Mohan Patel

Nitin A Changlani

Eldad Perahia

Prakash Guda

Ahmed Khidre

James Jay Friedmann

Sachin Ganu

Mohd Shahnawaz Siraj

Hongli Zhang

Kehui Cai

Sathish Damodaran

Manoj Thawani

Kannan Konath

Deven Patel

Maruthi Bathina

James Friedmann

Examples described herein provide selective filtering by a network device for continuous 5 GHz and 6 GHz operation. Examples may include receiving, by the network device, a first signal in a 5 GHz band, and generating, by the network device, a second signal in a 6 GHz band. Examples may include selecting, by the network device, a first filter or a second filter to be applied the first signal in the 5 GHz band, wherein the first filter allows a lower frequency band to pass than the second filter in the 5 GHz band, selecting, by the network device, a third filter or a fourth filter to be applied to the second signal in the 6 GHz band, wherein the third filter allows a lower frequency band to pass than the fourth filter in the 6 GHz band, and simultaneously applying, by the network device, the selected first or second filter to the first signal and the selected third or fourth filter to the second signal.

Selective filtering for continuous 5 GHz and 6 GHz operation of a network device

Systems and methods for providing low latency connection by a network device is described herein. Upon receiving a request for a low latency connection from a client device, a lower frequency filter in a primary 6 GHz radio, a secondary 6 GHz radio and an upper frequency filter in the secondary 6 GHz radio may be enabled. A transition band between the lower frequency filter and the upper frequency filter may be enabled such that there is no interference between a primary frequency channel allowed by the lower frequency filter and a secondary frequency channel allowed by the upper frequency filter. An operating frequency channel of an existing communication session with the client device may be determined. Based on the operating frequency channel, the primary frequency channel and the secondary frequency channel may be determined to provide a first communication connection and a second communication connection to the client device.

Ultra low latency

Systems and techniques are described that are directed to filter frequency response shift compensation, including compensating for shifting in the rejection band of the filter. Compensation for the shifting in the rejection band can include applying a pre-distortion to attenuate edge resource units (RUs), and applying PHY Protocol Data Unit (PPDU) scheduling schemes. For example, a PPDU scheduling scheme reduce bandwidth in the channel, thereby dropping the out of band RUs. Front ends provide feedback to a respective radio, which allows that radio to apply the appropriate pre-distortion. The front ends can include one or more filters enabling frequency domain coexistence between collocated radios operating in the differing Wi-Fi bands, and a coupler that provides the feedback indicating the frequency response shift to a radio. The radio can then apply a digital pre-distortion to compensate for the shifting in the rejection band.

Methods and systems for filter frequency response shift compensation for WLAN traffic

Systems and methods are provided by which all APs in a particular deployment can be used to assist in the out-of-band discovery of 6 GHz radios by client devices. That is, a series of iterative operations can be performed to: (I) determine the state of 6 GHz radios in a zone/deployment area; (II) identify what radios can be considered near-neighbors to non-6 GHz radios for purposes of advertising one or more of the 6 GHz radios; (Ill) rank neighboring 6 GHz radios for a given non-6 GHz radio based on certain radio metrics; and (IV) ultimately determine those 6 GHz radios that can be advertised by the given non-6 GHz radio.

System and method for optimized load balancing on 6 GHz radios using out-of-band discovery in a mixed AP deployment

Dynamic configuration of multiple radios of an access point is described. An example of an access point includes a processor; a memory; hardware filters; and a first set of radio chains and antennas, the access point including a first radio mode for operation as a single radio on a first channel to service a first BSS and a second radio mode for operation as a first radio on the first channel and a second radio on a second channel to perform an additional service, wherein the access point is to provide dynamic configuration of the radios including, upon determining that operation of the first channel to service the first BSS is not compatible with a particular hardware filter of the first radio, migrating the first BSS from the first radio to the second radio to service on the second channel, and providing the additional service on the first channel.

Dynamic configuration of multiple radios of an access point

Systems and methods are provided for optimizing the scheduling of Orthogonal Frequency-Division Multiple Access (OFDMA) transmissions in the downlink (DL) direction. A two-stage mechanism can be implemented when effectuating DL OFDMA transmission involving multiple modulation and coding schemes (MCS) in a single transmit burst. A first stage of the two-stage mechanism may use radio frequency (RF) boosting/de-boosting of Resource Units (RUs) such that the average input power to an AP power amplifier (PA) may remain under a saturated PA output power to ensure PA linearity. If RF boosting/de-boosting is not supported, an alternative mechanism for OFDMA grouping (to rigid grouping) can be employed to skip higher MCS.

Scheduler optimization for OFDMA downlink transmissions

One embodiment can provide a method and a system for performing multiple radio frequency allocation. During operation, the system including a controller can receive, a Wi-Fi channel allocation and a filter bank configuration associated with a Wi-Fi radio transceiver. The system can determine one or more Internet of things (IoT) radio transceivers operating with the Wi-Fi radio transceiver. For a respective IoT radio transceiver, the system can perform the following operations: determining a set of scores based on a set of constraints associated with an application type for the IoT radio transceiver; and computing a weighted average score based on the set of scores; and determining a channel allocation for the IoT radio transceiver based on the weighted average score and the Wi-Fi channel allocation.

System and method for performing multiple radio frequency allocation

Systems and techniques are described that are directed to filter frequency response shift compensation, including attenuation compensation. Attenuation compensation can apply a pre-distortion to compensate for the magnitude of attenuated resource units (RUs). Additionally, filter frequency response shift can involve applying PHY Protocol Data Unit (PPDU) scheduling schemes. For example, a PPDU scheduling scheme can reduce bandwidth in the channel, thereby dropping the affected RUs. The attenuation compensation is implemented using front ends that provide feedback to a respective radio, which allows that radio to apply the appropriate pre-distortion. The front end can include one or more filters enabling frequency domain coexistence between collocated radios operating in the differing Wi-Fi bands, and a coupler that provides the feedback indicating the frequency response shift to a radio. The radio then applying a digital pre-distortion to a signal input into the one or more filters to compensate for the attenuated RUs.

Examples described herein provide selective filtering by a network device for continuous 5 GHz and 6 GHz operation. Examples may include receiving, by the network device, a first signal in one of a 5 GHz band and a 6 GHz band, and generating, by the network device, a second signal in the other one of the 5 GHz and 6 GHz bands. Examples may include selecting, by the network device, a first filter or a second filter to be applied to the one of the first and second signals in the 5 GHz band, wherein the second filter allows a higher frequency band to pass than the first filter in the 5 GHz band and the second filter is narrower than the first filter, selecting, by the network device, a third filter or a fourth filter to be applied to the other one of the first and second signals in the 6 GHz band, wherein the third filter allows a lower frequency band to pass than the fourth filter in the 6 GHz band and the third filter is narrower than the fourth filter, and applying, by the network device, the selected first or second filter to the first signal and the selected third or fourth filter to the second signal.

Disclosed herein, one embodiment of the disclosure is directed to a system, apparatus, and method for enabling simultaneous transmit and receive in the same Wi-Fi band within a device by first obtaining a first information corresponding to a first set of signals to be transmitted wirelessly by a first antenna of a first device and transmitting, by the first antenna of the first device, the first set of signals. Then, a second set of signals comprising: (a) the first set of signals transmitted by the first antenna of the first device and (b) a third set of signals transmitted by a second device different than the first device are received by a second antenna of the first device. Thereafter, a second information representing the second set of signals received by the second antenna of the first device is obtained. Last, based on the first information and the second information, a third information comprising an estimation of the third set of signals without the first set of signals is determined.

System and methods for enabling simultaneous transmit and receive in the same wifi band within a device

An example method comprising: activating a first radio of a wireless access point to communicate with a first set of client devices by transceiving signals on channels within a first frequency band; activating a second radio of the wireless access point to communicate with a second set of client devices by transceiving signals on channels within a second frequency band; receiving a command from a network controller to change frequency bands of the wireless access point; toggling the first radio from a first antenna circuit to a second antenna circuit to connect the first radio to an antenna such that the first radio is capable of transceiving signals on channels within a first sub-band of the first frequency band; and configuring the second radio to transceive signals on channels within a second sub-band of the first frequency band.

Dual mode wireless access point

A non-transitory computer-readable medium, network device, and method for enabling simultaneous transmit and receive in the same Wi-Fi band within a device by obtaining a first information corresponding to a first set of signals to be transmitted wirelessly by a first antenna of a first device; transmitting, by the first antenna of the first device, the first set of signals; receiving, by a second antenna of the first device, a second set of signals comprising (a) the first set of signals transmitted by the first antenna of the first device and (b) a third set of signals transmitted by a second device different than the first device; determining a third information corresponding to the third set of signals by canceling the first set of signals from the second set of signals, wherein the third information comprises an estimation of the third set of signals transmitted by the second device.

Growing community of inventors

Santa Clara, CA, United States of America

Farhan Hasnain