Agenda Item:

Source: ARIB (Japan)

Title: Baseline document proposal from ARIB SWG4 #2

Introduction
SWG4 (ARIB IMT-2000 study committee, Air Interface WG,  Sub-WG 4) has been developing MS (Mobile Station) specification document since May/’98. For starting point in 3GPP TSG-Terminal WG1, we propose our existing document as a baseline. Due to the time limitation, we could not reorganize the existing document to fit the 3GPP document style. In this paper, we would like to explain which potion (chapter or section) is related with TSG-T WG1 document.

Document Structure
ARIB document Volume-4 describes “Specification of Mobile Station for 3G Mobile System”. The section “5.1 RF Specifications”, “5.4 Performance Requirements”, “5.5 Timing Requirements”, “9. Logical Test Interface”, “12. Confidence Limit” and “13. Measurement Procedures” are related what should be discussed in TSG-T WG1. 

Proposal for Test Items and Test Procedures
We recognize the specification value and its test/measurement method are tightly coupled, and it is difficult to design them independently. So although the sections 5.X are to define specification value and definition, “Test Conditions and Measurement Method”, and “Minimum Requirements” are also described.
On the other hand, we think the consistency through all test procedures also important. So the chapter 13 is focus on the test procedures. You may feel that some information is duplicated and inconsistent between section 5.X and 13.X. We planed to arrange and brush them by release, but it has not been completed yet.
We would like to emphasize that we have been spending our time to discuss the test items and what should be described for testing in SWG4, and that information is consistent through Volume-4. So we propose the test items and document section structure can be used as baseline document in WG1.

Proposal for Logical Test Interface (Loopback Method)
We propose the common logical test interface and loopback method for testing. And we recommend the connection via air interface as a standard method. (But we do not intend to exclude the other physical interface.) And our approaches are;
1.	To assure a common test interface between MS and the test equipment independent from underlying protocol and physical interface.  
2.	To be visible what to be tested/measured, according to minimum requirement
3.	To provide the transparent and extensible test interface
4.	To equip with less dedicated test capability on MS  (Loopback)

Executive Summary of Chapter 9
1.	Logical test interface and service
By defining the logical interface, not depending on the test application, it allows to adjust/extend for various test specifications, using common logical service.
Logical service (set/get/action) composes the test process, by exchanging the message between MS and Test Equipment.
2.	Parameter/Data
Parameter/data allow the test user to handle test condition and status transparently.
2.1	Parameters
Configuration of test condition, in terms of : identification, test-mode, frequency, chip-rate, modulation, power, threshold, loopback, timing
2.2	Data
Test status, in terms of : transmitter, synchronization, forward-link-performance, timing, traffic
3.	Test control operation
To request MS to trigger the action directly in test process, the test control operation is available in mode of  bi-directional test (Tx/Rx Test) and single directional test (Tx Test or Rx Test).