Arris Enterprises LLC

Awaiz Khan

Ravi Sharma

During operation, a radio node may provide, at a transmit time during a first time interval, a first instance of a keep-alive message to a computer. Then, the radio node may receive, at a receive time prior to a first instance of a transmit expire time, an instance of a keep-alive response from the computer, where the instance of the keep-alive response authorizes the radio node to transmit in a granted portion of the spectrum until a second instance of the transmit expire time has elapsed. Moreover, the radio node may determine, based at least in part on the receive time and the first instance of the transmit expire time, an updated transmit time. Next, the radio node may provide, at the updated transmit time, which is prior to the second instance of the transmit expire time, a second instance of the keep-alive message addressed to the computer.

Automatic backoff of a spectrum allocation server heartbeat

During operation, the radio node may identify a second portion of a shared-license-access (SLA) band of frequencies with an improved communication-performance metric relative to a first portion of the SLA band of frequencies, which is currently approved and authorized for use. In response, the radio may provide a grant request to the computer for the second portion of the SLA band of frequencies, and may receive a grant response from the computer with an approval for a grant to the second portion of the SLA band of frequencies. Then, the radio node may provide a heartbeat request to the computer requesting authorization to use the second portion of the SLA band of frequencies, and may receive a heartbeat response from the computer with the authorization. Next, the radio node may provide a relinquishment request to the computer for the first portion of the SLA band of frequencies.

Make-before-break grant switching

During operation, a radio node may receive location information relating to a location of the radio node. Then, the radio node may provide a grant request to a computer, where the grant request includes a request to reserve a portion of a shared-license-access band of frequencies for use by the radio node based at least in part on the location information. Note that the location information may indicate whether the radio node is included in a geographic region. For example, the geographic region may include locations within a predefined distance from a boundary, such as a coastline. When the location information indicates the radio node is included in the geographic region, the portion of the shared-license-access band of frequencies may be outside of a second portion of the shared-license-access band of frequencies that is selectively used by a government user or a satellite service.

First grant request optimization based on geographic location

During operation, a radio node may determine a desired bandwidth in a shared-license-access band of frequencies. Then, the radio node may identify two or more sub-spectra based at least in part on the desired bandwidth, where a sum of ranges of frequencies in the sub-spectra equals the desired bandwidth, and a given sub-spectra includes a range of frequencies. Next, the radio node may provide, to the computer, grant requests for the sub-spectra, where a given grant request includes a request to reserve a given one of the sub-spectra for use by the radio node, and a probability of approval of the given grant request is larger than a probability of a grant request for the desired bandwidth. Note that at least two of the sub-spectra may be separated by an intervening band of frequencies (i.e., at least two of the sub-spectra may be non-contiguous).

Split-spectrum grant request

During operation, a radio node may receive, from a computer, approval and authorization to use a first grant for a first portion of an SLA band of frequencies, and approval and authorization to use a second grant for a second portion of the SLA band of frequencies, where the first grant is a primary grant and the second grant is a secondary grant in a supplemental downlink carrier aggregation. Then, the interface circuit may receive, from the computer, a heartbeat response that includes a grant termination message for the first grant, where the grant termination message includes a warning that indicates that the use of the first portion of the SLA band of frequencies is revoked after a time interval. In response to the grant termination message, the interface circuit may define the second grant as the primary grant for the supplemental downlink carrier aggregation.

Growing community of inventors

Milpitas, CA, United States of America

Awaiz Khan