3 Definitions, symbols and abbreviations
25.1023GPPRelease 17TSUser Equipment (UE) radio transmission and reception (TDD)
3.1 Definitions
For the purposes of the present document, the following definitions apply:
Power Spectral Density: The units of Power Spectral Density (PSD) are extensively used in this document. PSD is a function of power versus frequency and when integrated across a given bandwidth, the function represents the mean power in such a bandwidth. When the mean power is normalised to (divided by) the chip-rate it represents the mean energy per chip. Some signals are directly defined in terms of energy per chip, (DPCH_Ec, Ec, and P-CCPCH_Ec) and others defined in terms of PSD (Io, Ioc, Ior and Îor). There also exist quantities that are a ratio of energy per chip to PSD (DPCH_Ec/Ior, Ec/Ior etc.). This is the common practice of relating energy magnitudes in communication systems.
It can be seen that if both energy magnitudes in the ratio are divided by time, the ratio is converted from an energy ratio to a power ratio, which is more useful from a measurement point of view. It follows that an energy per chip of X dBm/3.84 MHz (3.84 Mcps TDD option) or X dBm/1.28 MHz (1.28 Mcps TDD option) can be expressed as a mean power per chip of X dBm. Similarly, a signal PSD of Y dBm/3.84 MHz (3.84 Mcps TDD option) or Y dBm/1.28 MHz (1.28 Mcps TDD option) can be expressed as a signal power of Y dBm.
Maximum Output Power: This is a measure of the maximum power the UE can transmit (i.e. the actual power as would be measured assuming no measurement error) in a bandwidth of at least (1+ times the chip rate of the radio access mode. The period of measurement shall be a transmit timeslot excluding the guard period.
Mean Power: When applied to a CDMA modulated signal this is the power (transmitted or received) in a bandwidth of at least (1+ times the chip rate of the radio access mode. The period of measurement shall be a transmit timeslot excluding the guard period unless otherwise stated.
RRC Filtered Mean Power: The mean power as measured through a root raised cosine filter with roll-off factor and a bandwidth equal to the chip rate of the radio access mode.
Nominal Maximum Output Power: This is the nominal power defined by the UE power class. The period of measurement shall be a transmit timeslot excluding the guard period.
Received Signal Code Power (RSCP): Given only signal power is received, the RRC filtered mean power of the received signal after despreading and combining.
Interference Signal Code Power (ISCP): Given only interference power is received, the RRC filtered mean power of the received signal after despreading to the code and combining. Equivalent to the RSCP value but now only interference is received instead of signal.
Multi-carrier reception: For 1.28Mcps TDD Option, it refers to the HS-DSCH reception on multiple carriers in a TTI for a UE. The assigned carriers for a UE should be contiguous.
Multi-carrier transmission: For 1.28Mcps TDD Option, it refers to transmission on multiple carriers simultaneously for a UE. The assigned carriers for a UE should be contiguous.
NOTE 1: The RRC filtered mean power of a perfectly modulated CDMA signal is 0.246 dB lower than the mean power of the same signal.
NOTE 2: The roll-off factor is defined in section 6.8.1.
MBSFN-only UE: A UE operable in receive mode only (for the purpose of MBSFN reception).
3.2 (void)
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACIR Adjacent Channel Interference Ratio
ACLR Adjacent Channel Leakage power Ratio
ACS Adjacent Channel Selectivity
BS Base Station
BER Bit Error Ratio
BLER Block Error Ratio
CQI Channel Quality Indicator
CW Continuous wave (unmodulated signal)
DL Down link (forward link)
DTX Discontinuous Transmission
DPCH Dedicated physical channel
DPCH_Ec Average energy per PN chip for DPCH
The ratio of the average energy per PN chip of the DPCH to the total transmit power spectral density of the downlink at the BS antenna connector
The ratio of the sum of DPCH_Ec for one service in case of multicode to the total transmit power spectral density of the downlink at the BS antenna connector
E-DCH Enhanced Dedicated Channel
E-AGCH E-DCH Absolute Grant Channel
E-HICH E-DCH HARQ ACK Indicator Channel
EIRP Effective Isotropic Radiated Power
FDD Frequency Division Duplexing
FER Frame Error Ratio
Fuw Frequency of unwanted signal. This is specified in bracket in terms of an absolute frequency(s) or frequency offset from the assigned channel frequency. For multi-carrier reception of 1.28Mcps TDD Option, negative offsets refer to the assigned channel frequency of the lowest carrier frequency used and positive offsets refer to the assigned channel frequency of the highest carrier frequency used.
Hybrid ARQ Hybrid Automatic Repeat reQuest
HSDPA High Speed Downlink Packet Access
HS-DSCH High Speed Downlink Shared Channel
HS-PDSCH High Speed Physical Downlink Shared Channel
HS-SCCH High Speed Shared Control Channel
IMB Integrated Mobile Broadcast
Ioc The power spectral density (integrated in a noise bandwidth equal to the chip rate and normalized to the chip rate) of a band limited white noise source (simulating interference from other cells) as measured at the UE antenna connector. For multi-carrier reception of 1.28Mcps TDD Option, Ioc is defined for each of the carrier individually and is assumed to be equal for all carriers unless explicitly stated per carrier.
Ior The total transmit power spectral density (integrated in a bandwidth of (1+α) times the chip rate and normalized to the chip rate) of the downlink signal at the BS antenna connector. For multi-carrier reception of 1.28Mcps TDD Option, Ior is defined for each of the carrier individually and is assumed to be equal for all carriers unless explicitly stated per carrier.
The received power spectral density (integrated in a bandwidth of (1+α) times the chip rate and normalized to the chip rate) of the downlink signal as measured at the UE antenna connector. For multi-carrier reception of 1.28Mcps TDD Option, 
is defined for each of the carrier individually and is assumed to be equal for all carriers unless explicitly stated per carrier.
MBMS Multimedia Broadcast and Multicast Service
MBSFN MBMS over a Single Frequency Network
MC-HSDPA Multi-carrier HSDPA
MC-HSUPA Multi-carrier HSUPA
MCCH MBMS point-to-multipoint Control Channel
MTCH MBMS point-to-multipoint Traffic Channel
Orthogonal Channel Noise Simulator, a mechanism used to simulate the users or control signals on the other orthogonal channels of a downlink link.
P-CCPCH Primary Common Control Physical Channel
PCH Paging Channel
PPM Parts Per Million
RACH Random Access Channel
RSSI Received Signal Strength Indicator
R Number of information bits per second excluding CRC bits successfully received on HS-DSCH by a HSDPA capable UE.
RU Resource Unit
SCTD Space Code Transmit Diversity
SIR Signal to Interference ratio
TDD Time Division Duplexing
TPC Transmit Power Control
UE User Equipment
UL Up link (reverse link)
UTRA UMTS Terrestrial Radio Access
ΔFOOB Δ Frequency of Out Of Band emission