Ericsson MINI-LINK BAS, Technical Description, Page: 7 / 174

5 MINI-LINK BAS
EN/LZB 111 0542 P2B Technical Description
3.5 Typical Network Applications...................3-11
4 End-User Services................... 4-1
4.1 Introduction ...............................................4-2
4.2 Data Communication.................................4-3
4.2.1 Ethernet Frames Encapsulation According
to RFC 1483 ......................................................4-4
4.3 CE Services ..............................................4-6
5 Physical and MAC Layers....... 5-1
5.1 Introduction ...............................................5-2
5.2 Physical Layer...........................................5-3
5.2.1 Media Control Loops .........................................5-5
5.2.1.1 Amplitude Control Loop....................................... 5-6
5.2.1.2 Frequency Control Loop...................................... 5-6
5.2.1.3 Modulation Index RCL, Uplink and Downlink....... 5-7
5.2.1.4 Clock Phase RCL, Uplink only ............................ 5-7
5.2.2 Radio Link Adaptation .......................................5-8
5.2.3 Modulation .........................................................5-8
5.3 RAUs ........................................................5-9
5.3.1 Block Diagram .................................................5-10
5.3.1.1 Transmitter On/Off Switch................................. 5-13
5.4 LLC Layer ...............................................5-14
5.4.1 TDMA/TDM Framing .......................................5-14
5.4.1.1 Downlink TDM Frame ....................................... 5-14
5.4.1.2 Uplink TDMA Frame ......................................... 5-15
5.4.2 Frame Alignment .............................................5-17
5.4.3 Scrambling.......................................................5-17
5.4.4 FEC .................................................................5-17
5.4.5 Performance Monitoring ..................................5-18
5.5 MAC Layer ..............................................5-20
5.5.1 Sign-On ...........................................................5-22
5.5.2 Distance Ranging ............................................5-22
5.5.3 Radio Bandwidth Limitation .............................5-23
5.6 Processing Flow......................................5-24
5.6.1 Downlink Processing Flow...............................5-24
5.6.2 Uplink Processing Flow ...................................5-25
5.6.3 RC Cells Insertion............................................5-26
6 Management and Control6-1
6.1 Introduction ...............................................6-2
6.2 Management System ................................6-3
6.3 Control Architecture ..................................6-4
6.3.1 Hierarchy ...........................................................6-4