38.104,Base Station (BS) radio transmission and reception

BS type 1-C,單端口傳輸驗(yàn)證型


BS type 1-H,

BS type 1-O and BS type 2-O,

一般關(guān)注BS type 1-C,單端口傳輸驗(yàn)證型

FR1和FR2

band定義


傳輸帶寬配置

保護(hù)帶


多u傳輸時(shí),保護(hù)帶

基站可配置的帶寬與SCS,band的關(guān)系

NR-ARFCN,RF reference frequency FREF以MHz表示

合法的NR-ARFCN與Band的關(guān)系

同步Raster

合法的GSCN與band的關(guān)系

射頻發(fā)射要求

6.2 Base station output power

6.3 Output power dynamics

6.4 Transmit ON/OFF power

6.5 Transmitted signal quality

輸出信號(hào)的頻率不可避免會(huì)有一定的偏差,我們用頻率誤差(Frequency Tolerance)或頻率穩(wěn)定度(Frequency Stability),用單位ppm來表示,即百萬分之一(parts per million)(1/10^6),是相對(duì)標(biāo)稱頻率的變化量,此值越小表示精度越高。比如,12MHz晶振偏差為±20ppm,表示它的頻率偏差為12×20Hz=±240Hz,即頻率范圍是(11999760~12000240Hz)

6.6 Unwanted emissions


射頻接收要求

7.2 Reference sensitivity level

7.3 Dynamic range,有干擾的AWGN信號(hào)進(jìn)來,信號(hào)依然可以解析的能力

7.4 In-band selectivity and blocking

7.5 Out-of-band blocking

7.6 Receiver spurious emissions

7.7 Receiver intermodulation

7.8 In-channel selectivity


各個(gè)信道都有信號(hào)質(zhì)量檢測(cè)需求

PUSCH

PUSCH傳輸預(yù)編碼使能


另外還有(最小要求只在小帶寬配置下時(shí)要求):

PUSCH傳輸預(yù)編碼使能的情況

UCI復(fù)用PUSCH的情況

高速運(yùn)動(dòng)下的性能

2-Step RA,RRC Resume

等等


PUCCH

8.3.1 DTX to ACK probability

The DTX to ACK probability, i.e. the probability that ACK is detected when nothing was sent

- #(false ACK bits) denotes the number of detected ACK bits.

- #(ACK/NACK bits) denotes the number of encoded bits per slot

- #(PUCCH DTX) denotes the number of DTX occasions

8.3.3.1 NACK to ACK requirements

The NACK to ACK detection probability is the probability that an ACK bit is falsely detected when an NACK bit was sent on the particular bit position

- #Total NACK bits denotes the total number of NACK bits transmitted

- #NACK bits decoded as ACK bits denotes the number of NACK bits decoded as ACK bits at the receiver, i.e. the number of received ACK bits

- NACK bits in the definition do not contain the NACK bits which are mapped from DTX, i.e. NACK bits received when DTX is sent should not be considered.

8.3.3.2 ACK missed detection requirements

The ACK missed detection probability is the probability of not detecting an ACK when an ACK was sent.

8.3.4.2 UCI BLER performance requirements

The UCI block error probability (BLER) is defined as the probability of incorrectly decoding the UCI information when the UCI information is sent. The UCI information does not contain CSI part 2.


PRACH

8.4.1 PRACH False alarm probability

The false alarm probability is the conditional total probability of erroneous detection of the preamble (i.e. erroneous detection from any detector) when input is only noise.

8.4.2 PRACH detection requirements

The probability of detection is the conditional probability of correct detection of the preamble when the signal is present. There are several error cases – detecting different preamble than the one that was sent, not detecting a preamble at all or correct preamble detection but with the wrong timing estimation.


附錄

A1 - A5, FRC 1-5 parameters

A6, Prach preamble

A7-A9,F(xiàn)RC 7-9parameters

B, FR1的EVM定義,參考測(cè)量點(diǎn)等

C, FR2的EVM定義,參考測(cè)量點(diǎn)等

G,Propagation conditions,傳播環(huán)境,AWGN,多徑衰落

與多普勒頻偏組合時(shí)

還有MIMO信道相關(guān)矩陣,多普勒頻偏的定義等

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