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4.2.1.2.2 Interruption time
The interruption time i.e. the time between the last TTI containing a transport block on the old DPCH and the time the UE starts transmission of the new uplink DPCCH, shall be less than the value in table 4.2. There is different requirement on the interruption time depending on if the cell is known or not. A cell shal...
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4.2.2 1.28 Mcps TDD/FDD Handover
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4.2.2.1 Introduction
The purpose of 1.28 Mcps TDD/FDD handover is to change the mode between 1.28 Mcps TDD and FDD. The handover procedure is initiated from UTRAN with a handover command message. The handover procedure causes the UE to change its frequency.
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4.2.2.2 Requirements
These requirements shall apply only to 1.28 McpsTDD/FDD UE. The requirements do not apply if FDD macro-diversity is used.
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4.2.2.2.1 Handover delay
Procedure delay for all procedures, that can command a hard handover, are specified in 3GPP TS 25.331 [9] section 11.5. When the UE receives a RRC message that implies a handover with the activation time "now" or earlier than Dhandover seconds from the end of the last TTI containing the RRC command, the UE shall be re...
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4.2.2.2.2 Interruption time
The interruption time, i.e. the time between the end of the last TTI containing a transport block on the old DPCH and the time the UE starts transmission of the new uplink DPCCH, shall be less than the value in table 4.3 There is different requirement on the interruption time depending on if the cell is known or not. ...
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4.2.3 1.28 Mcps TDD/GSM Handover
In the early days of UMTS deployment it can be anticipated that the service area will not be as contiguous and extensive as existing second generation systems. It is also anticipated that UMTS network will be an overlay on the 2nd generation network and utilise the latter, in the minimum case, as a fall back to ensure ...
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4.2.3.1 Introduction
The purpose of inter-RAT handover from UTRAN 1.28 Mcps TDD to GSM is to transfer a connection between the UE and UTRAN 1.28 Mcps TDD to GSM. The handover procedure is initiated from UTRAN with a RRC message (HANDOVER FROM UTRAN COMMAND). The procedure is described in TS 25.331 section 8.3.7.
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4.2.3.2 Requirements
These requirements only apply to UE supporting GSM.
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4.2.3.2.1 Handover delay
When the UE receives a RRC HANDOVER FROM UTRAN COMMAND with the activation time "now" or earlier than the value in Table 4.4 from the end of the last TTI containing the RRC command, the UE shall be ready to transmit (as specified in 3GPP 45.010 [12]) on the new channel the new RAT within the value in Table 4.4 from th...
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4.2.3.2.2 Interruption time
The interruption time, i.e. the time between the end of last TTI containing a transport block on the old channel and the time the UE is ready to transmit on the new channel, shall be less than the value in Table 4.5. The requirement in Table 4.5 for the case, that UE is not synchronised to the GSM cell before the HANDO...
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4.2.4 Cell Re-selection in CELL_FACH
Note: Data in this section needs to be revised. Cell re-selection, especially inter-frequency (TDD or FDD) and inter-system (GSM), in Cell_FACH state is still under discussion in WG4., due to possible loss of FACH data during reselection process.
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4.2.4.1 Introduction
Common with TS 25.123 [3].
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4.2.4.2 Requirements
Common with TS 25.123 [3].
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4.2.4.2.1 Cell re-selection delay
Common with TS 25.123 [3].
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4.2.4.2.1.1 All cells in the neighbour list belong to the same frequency
Common with TS 25.123 [3]. NOTE: The test parameter of this section will be found in B.2.4.1
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4.2.4.2.1.2 The cells in the neighbour list belong to different frequencies
NOTE: This requirement should be reconsidered based on RAN2 decisions. the test of parameter of this section will be found in B.2.4.2. The cell re-selection delay in CELL_FACH state shall be less than [x] seconds when the cells in the neighbour list belong to less than [x] frequencies. NOTE: The test parameter of this ...
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4.2.5 Cell Re-selection in CELL_PCH
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4.2.5.1 Introduction
Common with re-selection in idle mode.
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4.2.5.2 Requirements
Same requirements as for cell re-selection in idle mode apply.
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4.2.6 Cell Re-selection in URA_PCH
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4.2.6.1 Introduction
Common with re-selection in idle mode.
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4.2.6.2 Requirements
Same requirements as for cell re-selection in idle mode.
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4.3 Dynamic Channel Allocation
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4.3.1 Introduction
Common with 25.123
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4.3.2 Implementation Requirements
Common with 25.123
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4.3.3 Number of timeslots to be measured
The number of down link timeslots to be measured in the UE is broadcasted on the BCH in each cell. In general, the number of downlink timeslots in question will be less than [6], but in worst case the UE shall be capable to measure [6] downlink timeslots. In case of “simple UE [FFS] timeslots shall at least be measured...
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4.3.3.1 Explanation
In NTDD there are 7 common timeslots and 3 special timeslots, in the 7 common timeslots Ts1 is always allocated to UL. So the number of downlink timeslots in question will be less than 6,in the worst case the UE shall be capable to measure 6 timeslots.
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4.3.4 Measurement reporting delay
In order to save battery lifetime, in idle mode no measurements are performed for DCA. ISCP measurements are started at all establishments. Taking into account that the measured interference of the timeslots is preferable averaged over [FFS] frames, the measurement reporting delay in connecting phase shall not exceed [...
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4.4 Timing characterisitics
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4.4.1 Timing Advance (TA) Requirements
For 1.28 Mcps TDD the timing advance in the UE is adjusted by means of uplink synchronisation. For the random access procedure the node B commands the UE to adjust its synchronisation shift by means of signalling the received position of the UpPTS in the FPACH. During the connection the node B measures the timing in t...
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4.4.1.1 Uplink synchronization control requirements for UE for 1.28 Mcps TDD option
Uplink synchronization control is the ability of the UE transmitter to adjust its TX timing in accordance with one or more SS commands received in the downlink.
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4.4.1.1.1 Uplink synchronization control steps
The SS step is the change in UE transmission timing in response to a single SS command, SS_cmd, received by the UE.
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4.4.1.1.1.1 Minimum requirement
The UE transmitter shall have the capability of changing the transmission timing with a step size of 1/8, 2/8, 3/8, …, 1 chip according to the value of SS, n=(1,2,…,14) time slot after the SS_cmd arrived (closed loop). For the open loop any step being a multiple of 1/8 chip has to be allowed. a) The minimum transmissi...
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4.4.1.1.2 Timing Advance (TADV) for 1.28 Mcps TDD
This measurement refers to TS 25.225 subsection 5.1.14.
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4.4.1.1.2.1 Accuracy requirements
Table 4.7 Parameter Unit Accuracy Conditions Range [chips] Timing Advance chips period +/- 0.125 0, …, 255.875
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4.4.1.1.2.2 Range/mapping
The reporting range for Timing Advance is from 0 ... 255.875 chips. In table 4.8 the mapping of the measured quantity is defined. The signalling range may be larger than the guaranteed accuracy range. Table 4.8 Reported value Measured quantity value Unit TIMING_ADVANCE_0000 Timing Advance < 0 chip TIMING_ADVANCE_0001 0...
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4.4.1.1.2.2.1 Explanation difference
In 3.84 Mcps TDD timing advance control is carried out by means of higher layer signalling: The network transmits a highly protected timing advance command containing the total timing advance and the UE executes it. Consequently the network can be sure of the timing advance applied by the UE. In 1.28 Mcps TDD the netwo...
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4.4.2 Cell synchronisation accuracy
Common with 3.84 Mcps TDD option.
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4.4.2.0 Explanation
Considering intersystem compatibility , cell synchronisaton accuracy is the same as 3.84 Mcps TDD option.
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4.4.2.1 Definition
(void)
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4.4.2.2 Minimum Requirements
(void)
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4.5 UE Measurements Procedures
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4.5.1 Measurements in CELL_DCH State
The monitor mechanism in this state is ffs for 1.28 chip rate TDD.
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4.5.1.0 Explanation
This section contains requirements on the UE regarding measurement reporting in CELL_DCH State. Because of the difference between the frame structure of 1.28 Mcps and that of 3.84 Mcps, the idle time slots which can be used for monitoring will be different, hence the detail of this subclause would be different compared...
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4.5.1.1 Introduction
(void)
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4.5.1.2 Requirements
(void)
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4.5.2 Measurements in CELL_FACH State
Commons with 3.84 Mcps TDD.
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4.5.2.0 Explanation
The section describes the requirements on the UE regarding measurement reporting in CELL_FACH state. The requirements independent with bandwidth and chip rate should be the same. Hence the contents need no modification.
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4.5.2.1 Introduction
(void)
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4.5.2.2 Requirements
(void)
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4.6 Measurements Performance Requirements
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4.6.1 Measurements Performance for UE
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4.6.1.1 Performance for UE Measurements in Downlink (RX)
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4.6.1.1.1 P-CCPCH RSCP (1.28 Mcps TDD)
Common with 3.84 Mcps TDD.
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4.6.1.1.1.1 Explanation
The result of this measurement is not energy and it is independent with the bandwidth, so there should not be modification.
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4.6.1.1.2 CPICH Measurements (FDD)
Common with 3.84 Mcps TDD.
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4.6.1.1.3 Timeslot ISCP
Common with 3.84 Mcps TDD.
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4.6.1.1.3.1 Explanation
The result of this measurement is not energy and it is independent with the bandwidth, so there should not be modification.
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4.6.1.1.4 UTRA carrier RSSI
Common with 3.84 Mcps TDD.
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4.6.1.1.4.1 Explanation
This measurement relies on the signal-detecting algorithm which independent with the bandwidth and chip rate, so it needs no modification.
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4.6.1.1.5 GSM carrier RSSI
Common with 3.84 Mcps TDD.
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4.6.1.1.5.1 Explanation
This measurement relies on GSM, so it needs no modification.
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4.6.1.1.6 SIR
Common with 3.84 Mcps TDD.
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4.6.1.1.6.1 Explanation
This measurement mainly used to meet the requirement of service performance which independent with the bandwidth and chip rate, so there should be no modification.
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4.6.1.1.7 Transport channel BLER
Common with 3.84 Mcps TDD.
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4.6.1.1.7.1 Explanation
This measurement is mainly used to meet the requirement of service performance which independent with the bandwidth and chip rate, so there should be no modification.
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4.6.1.1.8 SFN-SFN observed time difference
The measurement period for CELL_DCH state can be found in section 4.5.
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4.6.1.1.8.1 Accuracy requirements
Table 4.9: SFN-SFN observed time difference accuracy Parameter Unit Accuracy Conditions Io [dBm] SFN-SFN observed time difference Chip +/-0,5 for type 1 but +/- 0.125 for type 2 -94...-50
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4.6.1.1.8.2 Range/mapping
The reporting range for SFN-SFN observed time difference type 1 is from 0 ... 3276800 chip. In table 4.10 mapping of the measured quantity is defined. Signalling range may be larger than the guaranteed accuracy range. Table 4.10 Reported value Measured quantity value Unit T1_SFN-SFN_TIME _0000000 0  SFN-SFN observed t...
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4.6.1.1.8.3 Explanation difference
In 1.28 Mcps TDD there are 12800chips per frame while in 3.84 Mcps TDD there are 38400chips. According to this chip number difference, the observed time difference range in type 1 should be changed correspondingly. There are 3 kind of special time slot (DwPTS, UpPTS and GP) in 1.28 Mcps TDD frame structure (see section...
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4.6.1.1.9 Observed time difference to GSM cell
Common with 3.84 Mcps TDD.
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4.6.1.1.9.1 Explanation
For different systems, the measurement that is used to realize the compatibility should be the same. So it is independent with bandwidth and chip rate and there should be no modification.
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4.6.1.1.10 UE GPS Timing of Cell Frames for LCS
Common with 3.84 Mcps TDD.
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4.6.1.1.10.1 Explanation
The GPS timing of cell frames should be the same for different systems having LCS, so it needs no modification.
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4.6.1.1.11 SFN-CFN observed time difference
Common with 3.84 Mcps TDD.
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4.6.1.1.11.1 Explanation
For the measurement used for the interwork between cells, which belong to the same system or different systems, should be the same and independent with bandwidth and chip rate. So it needs no modification.
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4.6.1.2 Performance for UE Measurements in Uplink (TX)
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4.6.1.2.1 UE transmitted power
Common with 3.84 Mcps TDD.
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4.6.1.2.1.1 Explanation
The UE transmitted power is represented by energy density and it is independent with the bandwidth, so there should not be modification.
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4.6.2 Measurements Performance for UTRAN
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4.6.2.1 Performance for UTRAN Measurements in Uplink (RX)
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4.6.2.1.1 RSCP
Common with 3.84 Mcps TDD option.
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4.6.2.1.2 Timeslot ISCP
Common with 3.84 Mcps TDD option
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4.6.2.1.3 RSSI
Common with 3.84 Mcps TDD option
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4.6.2.1.4 SIR
Common with 3.84 Mcps TDD option
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4.6.2.1.5 Transport Channel BER
Common with 3.84 Mcps TDD option
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4.6.2.1.6 RX Timing Deviation
The definition of RX Timing Deviation here is common with 3.84 Mcps but only accuracy and range are different between two TDD mode.
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4.6.2.1.6.1 Accuracy requirements
Table 4.12 Parameter Unit Accuracy Conditions Range [chips] RX Timing Deviation chips period +/- 0.125 -128, …, 128
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4.6.2.1.6.2 Range/mapping
The reporting range for RX Timing Deviation is from-128 ... 128 chips. In table 4.13 mapping of the measured quantity is defined. Signaling range may be larger than the guaranteed accuracy range. Table 4.13 Reported value Measured quantity value Unit RX_TIME_DEV_0001 RX Timing Deviation < –128,000 chip RX_TIME_DEV_0002...
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4.6.2.1.6.3 Explanation difference
In 3.84 Mcps TDD the ‘RX Timing Deviation’ measurement is only needed to report to the higher layer for timing advance calculation or location services. It does not need to measure this value continuously. While in 1.28 Mcps TDD this measurement is not only reported to higher layer, but also severed as a physical signa...
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4.6.2.1.7 SYNC-UL Timing Deviation for 1.28 Mcps
This measurement refers to TS 25.225 [13]subsection 5.2.8.1.
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4.6.2.1.7.1 Accuracy requirements
Table 4.14 Parameter Unit Accuracy Conditions Range [chips] SYNC-UL Timing Deviation chips period +/- 0.125 0, …, 255.875
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4.6.2.1.7.2 Range/mapping
The reporting range for SYNC-UL Timing Deviation is from 0 ... 255.875 chips. In table 4.15 the mapping of the measured quantity is defined. Signaling range may be larger than the guaranteed accuracy range. Table 4.15 Reported value Measured quantity value Unit SYNC_UL_TIME_DEV_0000 SYNC-UL Timing Deviation < 0 chip SY...
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4.6.2.1.7.3 Explanation difference
In 1.28 Mcps TDD there is a two step approach for the random access procedure. In the first step the UpPCH is transmitted by the UE. The node B received the UpPCH and responds with the FPACH which contains the received position of the SYNC-UL sequence. This allows the UE to adjust its timing advance for the PRACH in or...
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4.6.2.2 Performance for UTRAN Measurements in Downlink (TX)
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4.6.2.2.1 Transmitted carrier power
Common with 3.84 Mcps TDD option.
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4.6.2.2.1.1 Explanation
These parameters in this section are not energy ,so they are independent with bandwidth . There need not to any change compare with the 3.84 Mcps TDD option.
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4.6.2.2.2 Transmitted code power
Common with 3.84 Mcps TDD option. 4.6.2.2.2.1 explanation These parameters in this section are not energy ,so they are independent with bandwidth. There need not to any change compare with the 3.84 Mcps TDD option.
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4.7 FPACH physical layer information field definition (1.28 Mcps TDD)
1.28 Mcps TDD introduces the FPACH (Forward Physical Access CHannel) which carries physical layer information. Two of these information fields are the ‘received starting position of the UpPCH’ (Uplink Pilot CHannel) and the ‘transmit power level command for the RACH message’. Both information fields are directly (recei...