| # Copyright 2023 The ChromiumOS Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Provides handover functionality.""" |
| |
| from enum import Enum |
| |
| |
| class CellularTechnology(Enum): |
| """A supported cellular technology to handover to/from.""" |
| |
| LTE = "LTE" |
| WCDMA = "WCDMA" |
| |
| |
| class AbstractHandoverSimulator: |
| """Simulator for facilitating inter/intra-RAT handovers.""" |
| |
| def lte_handover(self, band, channel, bandwidth, source_technology): |
| """Performs a handover to LTE. |
| |
| Args: |
| band: the band of the handover destination |
| channel: the downlink channel of the handover destination |
| bandwidth: the downlink bandwidth of the handover destination |
| source_technology: the source handover technology. |
| """ |
| raise NotImplementedError() |
| |
| def wcdma_handover(self, band, channel, source_technology): |
| """Performs a handover to WCDMA. |
| |
| Args: |
| band: the band of the handover destination |
| channel: the downlink channel of the handover destination |
| source_technology: the source handover technology. |
| """ |
| raise NotImplementedError() |
| |
| |
| class HandoverSimulatorError(Exception): |
| """Exceptions thrown when the cellular equipment is unable to successfully perform a handover operation.""" |
