Test Of Handoff Flow - Huawei iSiteC BTS3601C Installation Manual

Installation Manual
iSiteC BTS3601C CDMA Base Station

4.4.7 Test of Handoff Flow

I. Test condition
1) This test should be performed after the above three tests and in the area
covered by at least two cells. One of cell should be configured with several
sectors, so that the test of the softer handoff can be conducted.
2) The sectors (or omni cells) that compose the overlapped radio coverage should
be configured with different frequencies, so that the hard handoff can be
conducted.
3) The related handoff data should have been configured;
4) Dedicated test MSs;
5) Change the IMSI of the MS, and redefine the subscriber. In this way, the MS can
access the network by selecting a certain basic frequency or auxiliary frequency
in the sector (or omni cell) that is configured with multiple frequencies.
II. Test steps
1) Use an MS to call a PSTN subscriber and establish a conversation.
2) Move the MS from the source sector to the adjacent sector within the same cell
to test the softer handoff performance.
Only when the adjacent sector is also configured with the frequency at which the
MS has established the conversation in the source sector, and the frequency is
available, can the softer handoff be achieved.
3) Move the MS from the source cell to the target cell to test the soft/hard handoff
performance.
When the MS establishes a connection at a frequency in the source cell, while the
target cell is not configured with this frequency, the hard handoff will occur. If the
target cell is configured with this frequency and this frequency is available, the soft
handoff will occur.
III. Expected test result
1) Soft handoff and softer handoff
Normally, when the MS moves to the adjacent cell/sector, the target pilot channel will
be shown in the active set of the MS pilot set.
During the conversation, the mobile subscriber feels no interruption or call drop, and
the voice quality is good.
2) Hard handoff
Normally, when the MS moves to the adjacent cell or sector, it is visible in the active
set of the MS pilot set that the source pilot channel is deleted, and the target pilot
channel is added.
Software Installation & System Commissioning
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