參數(shù)資料
型號： PCF5083
廠商： NXP Semiconductors N.V.
英文描述： STEEL COVER
中文描述： GSM信號處理IC
文件頁數(shù)： 54/136頁
文件大?。?/td> 602K
代理商： PCF5083
1996 Oct 29
54
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
9.1.5.4
User data block formats
In the following sections the user data block formats for all
data channels defined in“GSM Rec. 05.03”are explained.
The formats for uplink and downlink directions are identical
with the exception that three additional bytes are
transmitted in the downlink direction:
The first byte contains the facch_flag. This flag indicates
whether the channel decoder has decoded a FACCH
(facch_flag = 1) or not (facch_flag = 0).
The other two bytes, rxqual_ber_low and
rxqual_ber_high, indicate the estimated Bit Error Rate
(BER) at the channel decoder input.
The Bit Error Rate can be calculated using the following
equation:
256
+
4096
Tables 44 to 47 show the user data block format for
full-rate and half-rate data channels running at different
baud rates.
Note that the TCH/H4.8 format is used for half-rate data
channels at 4.8 kbits/s. It is equivalent to the format used
for TCH/F9.6 (see Table 46).
BER
rxqual_ber_high
×
rxqual_ber_low
=
Table 44
TCH/F2.4
The following table shows the user data block for full rate data channel at 2.4 kbit/s (and less). The 2
×
36 data bits
shown correspond to 2 modified CCITT V.110 36-bit frames.
DESCRIPTION
OFFSET
DOWNLINK DATA
UPLINK DATA
Block size
Valid flag
Modified CCITT frame 1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14
1
11
1
rb8 to rb1
rb16 to rb9
rb24 to rb17
rb32 to rb25
rb36 to rb33
rb8 to rb1
rb16 to rb9
rb24 to rb17
rb32 to rb25
rb36 to rb33
facch_flag
rxqual_ber_low
rxqual_ber_high
rb8 to rb1
rb16 to rb9
rb24 to rb17
rb32 to rb25
rb36 to rb33
rb8 to rb1
rb16 to rb9
rb24 to rb17
rb32 to rb25
rb36 to rb33
Modified CCITT frame 2
FACCH flag
rxqual_ber
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF5083H/001/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF5083H/5V2/F3 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF5083H/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF51AC128ACFUE 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
PCF51AC128ACLKE 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
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