diff --git a/doc/models/Makefile b/doc/models/Makefile index 61a94cd55..a25dc919e 100644 --- a/doc/models/Makefile +++ b/doc/models/Makefile @@ -119,6 +119,7 @@ SOURCEFIGS = \ $(SRC)/lte/doc/source/figures/lte-cell-selection.dia \ $(SRC)/lte/doc/source/figures/lte-cell-selection-open-access.dia \ $(SRC)/lte/doc/source/figures/lte-cell-selection-closed-access.dia \ + $(SRC)/lte/doc/source/figures/lte-handover-target-scenario.dia \ $(SRC)/lte/doc/source/figures/lena-dual-stripe.eps \ $(SRC)/lte/doc/source/figures/lte-mcs-index.eps \ $(SRC)/lte/doc/source/figures/lenaThrTestCase1.eps \ @@ -260,6 +261,7 @@ IMAGES_EPS = \ $(FIGURES)/lte-cell-selection.eps \ $(FIGURES)/lte-cell-selection-open-access.eps \ $(FIGURES)/lte-cell-selection-closed-access.eps \ + $(FIGURES)/lte-handover-target-scenario.eps \ $(FIGURES)/lena-dual-stripe.eps \ $(FIGURES)/lte-mcs-index.eps \ $(FIGURES)/lenaThrTestCase1.eps \ diff --git a/src/lte/doc/Makefile b/src/lte/doc/Makefile index 475711b84..894819d9a 100644 --- a/src/lte/doc/Makefile +++ b/src/lte/doc/Makefile @@ -39,7 +39,8 @@ IMAGES_DIA = \ $(FIGURES)/ue-meas-piecewise-a1-hys.dia \ $(FIGURES)/lte-cell-selection.dia \ $(FIGURES)/lte-cell-selection-open-access.dia \ - $(FIGURES)/lte-cell-selection-closed-access.dia + $(FIGURES)/lte-cell-selection-closed-access.dia \ + $(FIGURES)/lte-handover-target-scenario.dia # specify eps figures from which .png and .pdf figures need to be built diff --git a/src/lte/doc/source/figures/lte-handover-target-scenario.dia b/src/lte/doc/source/figures/lte-handover-target-scenario.dia new file mode 100644 index 000000000..95c04e62a Binary files /dev/null and b/src/lte/doc/source/figures/lte-handover-target-scenario.dia differ diff --git a/src/lte/doc/source/lte-testing.rst b/src/lte/doc/source/lte-testing.rst index 6d23fc40c..aa0ac6e3b 100644 --- a/src/lte/doc/source/lte-testing.rst +++ b/src/lte/doc/source/lte-testing.rst @@ -1312,8 +1312,8 @@ do the handover and the target cell where the UE should perform handover to. The test suite ``lte-handover-target`` verifies that the handover algorithm is making the right decision, in particular, in choosing the right target cell. It -consists of several short test cases for different network topology (2x2 grid -and 3x2 grid) and types of handover algorithm (the A2-A4-RSRQ handover algorithm +consists of several short test cases for different network topology (2×2 grid +and 3×2 grid) and types of handover algorithm (the A2-A4-RSRQ handover algorithm and the strongest cell handover algorithm). Each test case is a simulation of a micro-cell environment with the following @@ -1330,10 +1330,19 @@ parameter: - 1s simulation duration To trigger a handover, the test case "shutdowns" the source cell at +0.5s -simulation time. This is done by setting the source cell's Tx power to a very -low value. As a result, the handover algorithm notices that the UE deserves a -handover and several neighbouring cells become candidates of target cell at the -same time. +simulation time. Figure :ref:`fig-lte-handover-target-scenario` below +illustrates the process. This is done by setting the source cell's Tx power to +a very low value. As a result, the handover algorithm notices that the UE +deserves a handover and several neighbouring cells become candidates of target +cell at the same time. + +.. _fig-lte-handover-target-scenario: + +.. figure:: figures/lte-handover-target-scenario.* + :scale: 80 % + :align: center + + ``lte-handover-target`` test scenario in a 2×2 grid The test case then verifies that the handover algorithm, when faced with more than one options of target cells, is able to choose the right one.