FCC ID : A3LSPI-2L10022500 ATTACHMENT E. - USER MANUAL - HCT CO., LTD. SAN 136-1, AMI-RI, BUBAL-EUP, ICHEON-SI, KYOUNGKI-DO, 467-701, KOREA TEL:+82 31 639 8517 FAX:+82 31 639 8525 www.hct.co.kr Report No.
EPBD-002040 Ed.
COPYRIGHT This manual is proprietary to SAMSUNG Electronics Co., Ltd. and is protected by copyright. No information contained herein may be copied, translated, transcribed or duplicated for any commercial purposes or disclosed to the third party in any form without the prior written consent of SAMSUNG Electronics Co., Ltd. TRADEMARKS Product names mentioned in this manual may be trademarks and/or registered trademarks of their respective companies.
Mobile WiMAX RAS SPI-2L10 System Description INTRODUCTION Purpose This description describes the characteristics, functions and structures of the SPI-2L10, which is the RAS of Mobile WiMAX. Who Should Read This Manual This description is intended for engineers who want to know the functions and structures of the SPI-2L10 and the Mobile WiMAX equipment operators. Document Content and Organization This description is composed of five Chapters and an Abbreviation as follows: CHAPTER 1.
INTRODUCTION CHAPTER 4. Message Flow y Call Processing Message Flow y Bearer Message Flow y Network Synchronization Message Flow y Alarm Message Flow y Loading Message Flow y Operation and Maintenance Message Flow CHAPTER 5. Additional Functions and Tools Web-EMT ABBREVIATION Describes the acronyms used in this description. Conventions The following types of paragraphs contain special information that must be carefully read and thoroughly understood.
Mobile WiMAX RAS SPI-2L10 System Description TABLE OF CONTENTS INTRODUCTION I Purpose ....................................................................................................................................... I Who Should Read This Manual ................................................................................................... I Document Content and Organization .......................................................................................... I Conventions................
TABLE OF CONTENTS CHAPTER 4. Message Flow 4.1 4-1 Call Processing Message Flow .............................................................................................4-1 4.1.1 Initial Entry...................................................................................................................4-1 4.1.2 Authentication..............................................................................................................4-4 4.1.3 State Transition..................................
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 LIST OF FIGURES Figure 1.1 Configuration of Mobile WiMAX System Functions (Based on Profile C) .............. 1-3 Figure 1.2 Mobile WiMAX Network Configuration .................................................................. 1-5 Figure 2.1 Operating Networks Separately............................................................................. 2-7 Figure 2.2 Structure of SPI-2L10 Interface ...............................................................
TABLE OF CONTENTS Figure 4.19 Alarm Signal Flow of SPI-2L10 ..........................................................................4-28 Figure 4.20 Loading Message Flow ......................................................................................4-30 Figure 4.21 Operation and Maintenance Signal Flow ...........................................................4-31 Figure 5.1 Web-EMT Interface ................................................................................................
Mobile WiMAX RAS SPI-2L10 System Description CHAPTER 1. Overview of Mobile WiMAX System 1.1 Introduction to Mobile WiMAX The Mobile WiMAX system is the wireless network system that supports IEEE 802.16 base service. The IEEE 802.16 standard is the basis of Mobile WiMAX, and includes IEEE Std 802.16-2004 defining fixed wireless internet access service and IEEE Std 802.16, P802.16-2004/Cor/D3 defining the technologies supporting mobility, which include handover, paging.
CHAPTER 1. Overview of Mobile WiMAX System Characteristics of the Mobile WiMAX System The major characteristics of Mobile WiMAX system are listed below. 1-2 y High Compatibility and Cross-Interworking The Mobile WiMAX system is based on IEEE 802.16 standard and complies with Wave 2 Profile and ASN Profile C of the Mobile WiMAX Forum. Therefore, the Mobile WiMAX system provides high compatibility and excellent cross-interworking.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Mobile WiMAX System Functions(ACR, RAS) The Mobile WiMAX system consists of Radio Access Station (RAS), Access Control Router (ACR) and Mobile WiMAX System Manager (WSM). RAS manages 802.16 Medium Access Control (MAC)/Physical Layer (PHY) function for Mobile Station (MS), ACR manages various control functions and interworking function between Mobile WiMAX ASN system and CSN system.
CHAPTER 1. Overview of Mobile WiMAX System The ACR supports the Convergence Sublayer (CS) and performs the packet classification and Packet Header Suppression (PHS) functions. When the ACR carries out the header compression function, it supports Robust Header Compression (ROHC) defined in the NWG standard. In addition, the ACR performs the paging controller and location register functions for an MS in Idle Mode.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 1.2 Mobile WiMAX Network Configuration Mobile WiMAX network is composed of ASN and CSN. ACR and RAS are involved in ASN and WSM is the Network Element (NE) to manage ACR and RAS. CSN is composed of AAA server, HA and PCRF server. ASN is connected with CSN by router and switch. The following diagram shows the composition of Mobile WiMAX network.
CHAPTER 1. Overview of Mobile WiMAX System Access Control Router (ACR) ACR, which is the system between CSN and RAS, enables several RASs to interwork with IP network, sends/receives traffic between external network and MS, and controls QoS. The ACR interfaces with the Authentication, Authorization and Accounting (AAA) server using the Diameter/RADIUS protocols, and with the Policy & Charging Rules Function (PCRF) server using the Diameter protocol.
Mobile WiMAX RAS SPI-2L10 System Description CHAPTER 2. System Overview 2.1 Introduction to System The SPI-2L10, RAS of Mobile WiMAX, is controlled by ACR and connects Mobile WiMAX calls to MS. The SPI-2L10 interfaces with MS via a wireless channel observing the Mobile WiMAX standard (IEEE 802.16) and provides high-speed data service and multimedia service in wireless broadband.
CHAPTER 2. System Overview Convenience of Installation and Work The SPI-2L10 can be installed on a wall or pole, or in a rack, and it can be also installed in an outdoor environment, allowing the operator to take appropriate and flexible action for various installation environments. Supporting MIMO and Use of a High Output Power Amplifier The SPI-2L10 supports the MIMO of 2TX/2RX RF paths to obtain diversity gains and Spatial Multiplexing (SM) effects, increasing the data transfer rate.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 2.2 Main Functions 2.2.1 Physical Layer Processing Function OFDMA Ranging The ranging supported by the OFDMA system is roughly divided by the uplink timing synchronization method and the contention based bandwidth request method.
CHAPTER 2. System Overview Hybrid-ARQ (H-ARQ) Operation H-ARQ is the physical layer retransmission method using the stop-and-wait protocol. The SPI-2L10 carries out the H-ARQ function to minimize the effect attending to the change of wireless channel environment. MIMO The SPI-2L10 provides the MIMO function as follows according to Mobile WiMAX Wave 2 Profile: y Downlink − Matrix A (STC) Transmission ratio of the Matrix A or STC is 1 and equal to that of Single Input Single Output (SISO).
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 2.2.2 Call Processing Function Cell Initialization Function The SPI-2L10 announces the MAC Management message such as DCD/UCD/MOB_NBRADV to the cell area in service periodically to enable the MS receiving the message to carry out the appropriate call processing function. Call Control and Wireless Resource Allocation Function The SPI-2L10 enables an MS to enter to or exit from the network.
CHAPTER 2. System Overview QoS Support Function To maintain the QoS constraints given to each QoS class or service flow, the SPI-2L10 assigns a queue within the modem to each service flow and performs a scheduling according to the priorities of those service flows. Because real-time traffic has a higher priority than non-real-time traffic, a strict priority scheduling is used to schedule real-time traffic first. All real-time traffic is scheduled considering its transmission delay.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 The following figure shows an example in which the network dedicated to management and the user domain network are operated separately using the VLAN function of the SPI2L10. In the figure below, the SPI-2L10 is connected to the ASN using a physical link and supports communication with the two logically separated networks using two VLAN interfaces.
CHAPTER 2. System Overview IP Address When the SPI-2L10 does not separate the management network from the network for user traffic, no additional IP address is needed. One of the two basic IP addresses is used for interoperation with the WSM. 2.2.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Interfacing with auxiliary devices The SPI-2L10 supports the Ethernet interfaces (User Defined Ethernet (UDE)) for connecting the provider’s auxiliary devices (for example, an environment monitoring device). The SPI-2L10 also provides traffic paths along which maintenance traffic can be transmitted between the auxiliary devices and the remote auxiliary device monitoring server.
CHAPTER 2. System Overview Call Trace Function The SPI-2L10 supports the call trace function for a specific MS. The SPI-2L10 can carry out the call trace function up to 10 MSs. If a call occurs in the MS that an operator previously specified via ACR, the signaling message and statistical traffic data are transmitted to WSM.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Integrity Check The SPI-2L10 proactively checks whether system configuration or operation information (PLD) is in compliance with operator commands during system loading or operation, and also checks whether system settings are OK and there is no problem with call processing. If the result is not OK, it sends an alarm to the operator.
CHAPTER 2. System Overview Disabling Zero Code Suppression (ZCS) The SPI-2L10 collects statistics data and generates statistics files periodically. The WSM collects these statistics files. A statistics file is composed of the header used to indicate a statistics group and its detailed index (for example, a specific carrier, sector, CPU, port, etc.) and the statistics data for that index.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 2.
CHAPTER 2. System Overview Environmental Condition The following table specifies the operating temperature, humidity, vibration, wind velocity and waterproof ranges within which the SPI-2L10 can operate, as well as the strength of the noise and electromagnetic interference produced during operation of the SPI-2L10. Category Temperature Range Standard -40~45˚C GR-487-CORE Sec. 3.29 Humidity Noise 5~95% (Condensing up to 32˚C and not to exceed GR-487-CORE 0.024 kg water/kg dry air) Sec.3.34.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 2.4 Interface between Systems Interface Structure The SPI-2L10 interfaces with another RAS and ACR as shown in the figure below: AAA PCRF HA CSN SNMP, SFTP DHCP R3(Diameter/RADIUS, MIP, DHCP) ASN WSM ACR ACR R4 R6 R6 PTP GM(1588 Master) R8 SPI-2L10 RAS RAS R1(802.16) MS Figure 2.2 Structure of SPI-2L10 Interface y Interface between SPI-2L10 and MS The SPI-2L10 interfaces with an MS according to the IEEE 802.
CHAPTER 2. System Overview Protocol Stack y Protocol Stack between NEs The figure below shows the protocol stack between NEs. 802.16 MAC 802.16 MAC 802.16 PHY 802.16 16 PHY PHY MS R6 GRE (R6) UDP R6 GRE (R6) L2 UDP IP IP L2 L2 L1 L1 RAS L1 ACR Figure 2.3 Protocol Stack between NEs The SPI-2L10 interworks with MSs via R1 interface according to IEEE 802.16 standard and the interface between the SPI-2L10 and ACR is R6 interface.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Physical Interface Operation Method Meets IP55.The operation and maintenance interface (interface with WSM) is operated in in-band method, which shares the common user traffic interface. © SAMSUNG Electronics Co., Ltd.
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Mobile WiMAX RAS SPI-2L10 System Description CHAPTER 3. System Structure 3.1 Hardware Structure The SPI-2L10 is configured as follows. Figure 3.1 Appearance of the SPI-2L10 (External) © SAMSUNG Electronics Co., Ltd.
CHAPTER 3. System Structure PDP-T3R M2RU-2W M2DA-A TSCM-I UCCM-P M2DA-A U-RAS Light series-1 Digital board Assembly-A PDP-T3R Power Distribute Panel-T3R TSCM-I ToP Slave Clock Mezzanine board assembly-Industrial 삭제됨: M2RU-2W U- UCCM-P Universal Core Clock Module-Plus RAS Light series-1 M2RU-2W U-RAS Light series-1 Radio Unit-2 Carrier W 삭제됨: Plus Radio Unit-2 Carrier UCCM-P Universal Figure 3.2 Appearance of the SPI-2L10 (Internal) 3-2 © SAMSUNG Electronics Co., Ltd.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 3.1.1 Detailed Structure and Functions The structure and the function blocks of the SPI-2L10 are as follows. SPI-2L10 RF signal (2Tx/2Rx) Antenna M2RU-2W Filter TDD Switch Power Amp LNA Transceiver CPRI, Digital I/Q & OAM Clock GPS PP2S TOD 1588 Master Ethernet M2DA-A UCCM-P TSCM-I Modem Schedule Processor Memory ACR Console/Craft /Rectifier Ethernet -48 VDC -48 VDC PDP-T3R DC -48 V Figure 3.
CHAPTER 3. System Structure M2DA-A The M2DA-A is the software that carries out the SPI-2L10 routing protocol function. The M2DA-A operates and maintains the SPI-2L10. It makes it possible for the SPI-2L10 to interface with the ACR and provides a communication path between processors within the system. Moreover, the M2DA-A generates reference clocks, supplies them to the lower hardware blocks, and carries out the signal processing function for subscriber signals.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 In addition, by using the TSCM-I, which is a slave board embedded in the IEEE 1588 function, the M2DA-A receives the timing information which is transmitted via the Ethernet network from the IEEE 1588 master and generates reference clocks using the received timing information. The generated reference clocks are regenerated as the clocks necessary for each block within the M2DA-A, and are distributed to them.
CHAPTER 3. System Structure M2RU-2W Filter TDD S/W PA LNA PA LNA DUC/DDC ADC/DAC CPRI M2DA-A Traffic 삭제됨: Clock Alarm and Control Figure 3.4 Detailed Structure of M2RU-2W PDP-T3R The PDP-T3R is the power distribution device that distributes -48VDC power applied to the SPI-2L10 to other blocks and devices in the system. 3-6 © SAMSUNG Electronics Co., Ltd.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 3.1.2 External Interface The external interface layout plan of the SPI-2L10 is as follows. B/H GPS UDE RSVD PWR 삭제됨: Rsvd 삭제됨: UDE Ant A Tx A Tx B Ant B TDD Figure 3.5 External Interface Layout Plan Backhaul GPS Antenna Reserved UDE RF Antenna RF Antenna Tx Test Port M2DA-A Tx Test Port M2RU-2W Debug (Processor) TDD Switching Signal Debug (Processor) Debug (UCCM-P) Power Input Power Module Figure 3.
CHAPTER 3. System Structure Connector Connector Name Type ANT A, N Type Board Quantity M2RU-2W 2 Waterproof Usage Specification IP55 ANT B The RF output port (Carrier #0, Carrier #1). Connected to an external RF antenna. TX A, TX B SMA M2RU-2W 2 IP55 The port for monitoring RF output. Used to measure output signals. TDD SMA M2RU-2W 1 IP55 The port for outputting the duration of output and input signals. Connected to a measurement device.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 3.2 Software Structure 3.2.1 Software Basic Structure The components of the SPI-2L10 software are shown below: Operating System (OS), Device Driver (DD), Middleware (MW), Network Processor Software (NPS), IP Routing Software (IPRS), and application. The application is divided by Call Control (CC) block for the call processing and the OAM block for operation and maintenance of the SPI-2L10. APPLICATION CC OAM MW IPRS NPS OS DD Hardware Figure 3.
CHAPTER 3. System Structure Network Processor Software (NPS) NPS manages the innate functions of Network Processor (NP) that mainly processes the packets, and it connects the upper processor and NP in Board Processor (BP), and provides the functions of NP message processing, NP statistics data collection and report. IP Routing Software (IPRS) IPRS executes the IP routing protocol function.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 3.2.2 Call Control (CC) Block The CC block caries out the resource management function of the SPI-2L10 and the BS function of ASN Profile-C defined in NWG of Mobile WiMAX forum.
CHAPTER 3. System Structure RAS Service Controller (RSC) The RSC is in charge of the signaling-concentrated service in the SPI-2L10. As for the system outside, the RSC performs the message exchange with ACR via the Mobile WiMAX standard R6 interface. As for the system inside, RSC interworks with the RTC that is in charge of traffic data and transmits the information on the internal control message to the modem block. The RSC performs the MAC message exchange described in IEEE 802.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 y Data Traffic Processing Function RTC provides the data path between ACR and the SPI-2L10 via the R6 data path (GRE tunnel). y Traffic Control Function for Handover In handover, RTC performs the data synchronization function between serving RAS/ACR and target RAS/ACR. 3.2.
CHAPTER 3. System Structure Main Processor sFTP WSM Data R/W Non-volatile Memory SNMP Main OAM HTTPs EMI Software Entity IPC MDS Web-EMT API API Shared Memory SSH M D S CLI (IMISH) Terminal Board Processor IPC Board OAM API API Shared Memory Software Entity … Figure 3.10 Interface between OAM Blocks The EMI carries out SNMP agent and web server function, and provides the OAM interface between the management system (WSM, Web-EMT and CLI Terminal) and the SPI-2L10 by providing the IMISH.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 SNMP Daemon (SNMPD) SNMPD plays the SNMP agent role to support the standard SNMP (SNMPv2c/SNMPv3) and an interface role for the upper management system (WSM) and interworks with internal subagent. While receiving requests on the standard MIB object from WSM are processed by SNMPD itself, it transmits requests on the private MIB object to subagent in order to be handled properly.
CHAPTER 3. System Structure Web-based Element Maintenance Terminal (WebEMT) The WebEMT is the block to interface with the Web client of the console terminal which uses the Web browser, and performs the role of the Web server. Both Web-EMT and the SPI-2L10 support the HTTP communications based on the Secure Sockets Layer (SSL).
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Universal Fault Management (UFM) UFM manages the ACR faults and the status of software and hardware. UFM informs the detected failures to the upper management system by the filtering function, and applies the severity changes and the threshold to the fault management system.
CHAPTER 3. System Structure Loader Loader manages the entire process from the start of OS to the previous step of ULM running (pre-loading). After that, if ULM is actuated after the initialization script is executed and the registration and loading function is performed, the loader monitors the ULM block. Main functions are as follows: 3-18 y System time setting Before NTP-based synchronization, the system time is set by receiving the Time of Date (ToD) from a GPS receiver.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Universal Loading Management (ULM) ULM downloads and executes the packages that are identified in the file list downloaded by loader during pre-loading process. Also, ULM monitors the executed software and provides the running software information, and supports the restart and the software upgrade by the command.
CHAPTER 3. System Structure Common Performance Management (OPM) OPM collects and provides the performance data for the upper management system operator to know the SPI-2L10 performance. The OPM collects the event generated during the system operation and the performance data and transmits them to the management system.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Common Event Router (OER)/Common Event Viewer (OEV) The OER/OEV manages the event history as the text format. The OER/OEV transmits the information on all the events received from the OAM applications to the related agent (OAGS, WebEMT), and creates and saves the history file of the daily/hourly events, and displays the log contents on the operator window (IMISH) in real time.
CHAPTER 3. System Structure RAS Diagnosis Management (RDM) The RDM checks if internal and external connection paths or resources of the SPI-2L10 are normal. The connection paths are roughly divided into the external path between the SPI2L10 internal IPC path and another NE and the path between ACR and the SPI-2L10. In addition, it supports the on-demand test at the request of an operator and the periodical test according to the schedule defined by the operator.
Mobile WiMAX RAS SPI-2L10 System Description CHAPTER 4. Message Flow 4.1 Call Processing Message Flow 4.1.1 Initial Entry Below is the procedure that sets up a provisioned Service Flow (SF) in the networkinitiated Dynamic Service Add (DSA) mode during the initial network entry procedure.
CHAPTER 4.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Category (1)~(2) Description The MS sends the RAS the RNG-REQ message containing the MAC address and Ranging Purpose Indication of the MS. The RAS assigns the Basic & Primary Management CID and sends the RNG-RSP message to the MS. (3)~(4) The MS sends the RAS the SBC-REQ message containing the physical parameter and authorization policy information the MS supports.
CHAPTER 4. Message Flow (Continued) Category (31)~(38) Description This is the procedure for allocating an IP address to the MS that uses the simple IP method. If the MS requests the DHCP procedure to receive an allocated IP address, the ACR allocates the Simple IP address to the MS using the built-in DHCP server functions. As an option, the ACR supports the DHCP Relay Agent function, which interoperates with the external DHCP server.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Category (0)~(2) Description When receiving the MS_PreAttachment_Ack message from the RAS as a response to the SBC-RSP message, the ACR sends the RAS the AuthRelay-EAP-Transfer message containing the EAP Request/Identity payload to begin EAP authentication. The RAS relays the received EAP payload to the MS using the PKMv2 EAP-Transfer/ PKM-RSP message.
CHAPTER 4. Message Flow During Authenticator Relocation When the MS performs CSN-anchored Handover (HO) or the MS in Idle mode moves to another ACR's area and performs location update, the following reauthentication procedure is performed to move the authenticator from the existing serving ACR to the target ACR.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 4.1.3 State Transition Awake Mode Æ Idle Mode (MS-Initiated) If there is no traffic transmission for a specific period of time, the MS transits from Awake mode to Idle mode. Sleep Mode Æ Idle Mode Transition The MS in Sleep mode does not directly transit to Idle mode. This is because, before the MS transits from Sleep mode to Idle mode, it first transits to Awake mode and requests DREG before transiting to Idle mode.
CHAPTER 4. Message Flow (Continued) Category (9)~(10) Description As the MS has been transited to Idle mode, an accounting end message is sent to the AAA server to update the accounting information using the ACR/ACA message. When the Diameter/RADIUS protocols are used, they are operated according to the Idle Mode Notification on/off. If it is on, the accounting information is updated using the Diameter ACR/RADIUS Accounting Request message.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 If an error occurs during the procedure of changing the MS-initiated Idle Mode or networkinitiated Idle Mode, the RAS can start the BS-initiated network exit procedure. Below are the cases in which the RAS starts the network exit procedure. y Time out has occurred due to no response from the ACR or the fail indication is notified from the ACR when the MS asked for the Idle Mode transition.
CHAPTER 4. Message Flow Idle Mode Æ Awake Mode(QCS) When the MS in Idle mode responds to a paging caused by incoming traffic or when the MS in Idle mode sends traffic, it transits from Idle mode to Awake mode. For both cases, the MS has to perform a network re-entry procedure to enter Awake Mode. The Mobile WiMAX system should consider the QCS procedure as a network re-entry method by default. The figure below shows the procedure (QCS) in which Idle mode is changed to Awake mode during network re-entry.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Category (1) Description When the MS transits from Idle mode to Awake mode, it creates the RNG-REQ message containing the MAC address and Paging Controller ID and sends it to the RAS. At this time, the Ranging Purpose Indication field value is set to 0x00 (= Network Reentry). (2)~(3) The RAS creates the IM Exit State Change Request message containing the parameter value contained in the received RNG-REQ message, and sends it to the ACR.
CHAPTER 4. Message Flow (Continued) Category (7)~(8) Description The RAS notifies the ACR, which is the authenticator, of the new CMAC_KEY_COUNT value updated by the MS. (9) The RAS notifies the ACR of the data path setup result using the Path Registration Ack message. (10) When receiving the RNG-RSP message, the MS sends the BW Request Header to notify the system that it has transited to Awake mode. (11)~(12) Now the MS has transited to Awake mode and a new Transport CID has been assigned.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 4.1.4 Location Update Inter-RAS Location Update The figure below shows the location update procedure performed when the MS moves to another paging group in the same ACR. RAS 1 (PG 1) MS RAS 2 (PG 2) ACR 1) MOB-PAG_ADV 1) MOB-PAG_ADV 2) RNG-REQ (Location Update Request, Paging Controller ID) 3) LU Request 4) LU Response 5) RNG-RSP (Location Update Response) 6) CMAC_Key_Count_Update 7) CMAC_Key_Count_Update_Ack 8) LU Confirm Figure 4.
CHAPTER 4. Message Flow Inter-ACR Location Update (Anchor Relocation)-PMIP/CMIP The figure below shows the location update procedure performed when the MS moves to another ACR’s area.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Category (1)~(2) Description When the paging group changes, the MS sends the RNG-REQ message containing the MAC address, location update request, paging controller ID to the new T-RAS (Target RAS) to request a location update. The T-RAS sends its default ACR the Location Update Request message containing the paging controller ID.
CHAPTER 4.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Category (1)~(2) Description When the paging group changes, the MS sends the RNG-REQ message containing the MAC address, location update request, paging controller ID to the new T-RAS (Target RAS) to request a location update. The T-RAS sends its default ACR the Location Update Request message containing the paging controller ID.
CHAPTER 4. Message Flow 4.1.5 Paging Paging can be divided into the following two types: y By periodically broadcasting the MOB_PAG-ADV message, the RAS notifies the MS of the corresponding paging group. Based on the paging information (Paging Cycle, Paging Offset, and PGID) received from the system when the MS transits to Idle mode, the MS checks whether its paging group has changed by periodically checking the MOB_PAG-ADV message.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 4.1.6 Handover Inter-RAS Handover (HO) The figure below shows the inter-RAS handover procedure.
CHAPTER 4. Message Flow Category Description (1)~(3) To request a handover, the MS sends the current S-RAS (Serving RAS) the MOB_MSHO-REQ message containing the neighbor BS (RAS) ID and handoverrelated parameters. The S-RAS sends the ACR the HO-Request message containing the MOB_MSHO-REQ parameter received and the context information. The ACR forwards the HO-Request message to the T-RAS (Target RAS).
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Inter-ASN Handover (HO): ASN-Anchored Mobility Inter-ASN HO is divided into the ASN-anchored mobility method through the R4 interface and the CSN-anchored mobility method through the R3/R4 interface. The figure below shows the inter-ASN handover procedure in the ASN-anchored mobility method. The S-ACR (Serving ACR) carries out the anchor function.
CHAPTER 4. Message Flow The HO signaling procedure is the same as in inter-RAS HO, but the HO signaling message exchange steps through the R4 interface are added between the S-ACR and T-ACR (Target ACR). Category (1)~(4) Description To request a handover, the MS sends the current S-RAS (Serving RAS) the MOB_MSHO-REQ message containing the neighbor BS (RAS) ID and handoverrelated parameters.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Inter-ASN Handover (Inter-ASN HO): CSN-Anchored Mobility Below is described the inter-ASN HO in the CSN-anchored mobility. The anchor function is relocated from the S-ACR (Serving ACR) to the T-ACR (Target ACR). The CSN-anchored mobility method consists of the steps through which ASN-anchored mobility Ho is performed and the authenticator and DPF anchor are relocated to the target ACR.
CHAPTER 4. Message Flow Category (1)~(7) Description This is the procedure for relocating the authenticator from the S-ACR to the T-ACR. The T-ACR triggers the MS to perform the EAP authentication procedure again with the AAA server. The T-ACR notifies the S-RAS of the authentication results to finish the authenticator relocation procedure. (8)~(9) The T_ACR transmits the context information for the MS to the S_ACR.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 Category (1)~(3) Description When the MS in Awake mode is turned off, the MS sends the RAS the DREG-REQ message containing ‘Deregistration code=0,’ and the RAS notifies the ACR of this. (4) The ACR performs the procedure for releasing the MIP-related information with the HA. (5)~(6) The ACR notifies the RAS of the result for the power down of the MS, and releases the data path.
CHAPTER 4. Message Flow 4.2 Bearer Message Flow The data that the SPI-2L10 has received from the ACR is sent to the call processing block of the corresponding processor via the Ethernet switch, and then it is divided into the MAC PDU data and transmitted to the modem block. Then the data is sent again to the RF block through the CPRI. These signals undergo signal conversion and amplification and then are transmitted wirelessly via the antenna.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 4.3 Network Synchronization Message Flow The M2DA-A can receive synchronization signals via the GPS or IEEE 1588 master. In the SPI-2L10, the reference clocks output from the UCCM-P, which is a PS Receiver (GPSR), is supplied to each device by the clock distribution block. There are two types of reference clocks output from the GPSR, 10 MHz and PP2S.
CHAPTER 4. Message Flow 4.4 Alarm Signal Flow The detection of failures in the SPI-2L10 can be implemented by hardware interrupt or software polling method. The failures generated in the SPI-2L10 are reported to the management system via the SNMP trap message. Failure Alarm Types y System Failure Alarms NTP Update Error, Temperature High, Temperature Low, etc. y Board Failure Alarms − Hardware Failure Alarms: FUNCTION FAIL, etc.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 4.5 Loading Message Flow Loading is the procedure to download the software execution files and the data from the IS, which are required to perform each function of each processor and each device of the SPI2L10. Loading the SPI-2L10 is performed in the procedure of initializing the system.
CHAPTER 4. Message Flow After the preloading procedure has been performed and the loading method has been determined, the Main OAM of the M2DA-A that performs operation and maintenance for the SPI-2L10 carries out loading from the corresponding IS (a remote IS or internal storage) via FTP. The information for the software loaded in the SPI-2L10 can be checked using the WSM.
Mobile WiMAX RAS SPI-2L10 System Description/Ed.00 4.6 Operation and Maintenance Message Flow An operator can check and change the status of the SPI-2L10 by means of the management system. To this end, the SPI-2L10 provides the SNMP agent function. The function enables the WSM operator to perform the operation and maintenance function of the SPI-2L10 at remote site by using the SNMP.
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Mobile WiMAX RAS SPI-2L10 System Description CHAPTER 5. Additional Functions and Tools 5.1 Web-EMT The Web-EMT is a type of GUI-based consol terminals and the tool to access the SPI-2L10 directly, monitor the device status and perform operation and maintenance. An operator can execute the Web-EMT only with Internet Explorer and the installation of additional software is not necessary. In addition, GUI is provided in HTTPs protocol type internally.
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Mobile WiMAX RAS SPI-2L10 System Description ABBREVIATION A AAA Authentication Authorization Accounting AC Alternating Current ACK Acknowledgement ADC Analog to Digital Conversion ADI Asynchronous Digital Interfaces AGC Automatic Gain Control ANT Antenna ARQ Automatic Repeat request ASN Access Service Network ACR Access Service Network-Gateway B BER Burst Error Rate BI Bucket Interval BS Base Station BW Bandwidth C CID Connection Identifier CINR Carrier to Interference and N
ABBREVIATION E EAP Extensible Authentication Protocol EMC Electro-Magnetic Compatibility EMI Electro-Magnetic Interference FA Foreign Agent FFR Fractional Frequency Reuse F G GPS Global Positioning System GPSR GPS Receiver GRE Generic Routing Encryption HA Home Agent H H-ARQ Hybrid-ARQ HO Handover I/Q In-phase/Quadrature-phase I IEC International Electrotechnical Commission IEEE Institute of Electrical and Electronics Engineers IND Indication IP Internet Protocol IS Image S
Mobile WiMAX RAS SPI-2L10 System Description/Ed.
ABBREVIATION S SA Security Association SBC SS Basic Capability SF Service Flow SISO Single Input Single Output SM Spatial Multiplexing SMA Subminiature version A SSH Secure Shell STC Space Time Coding T TDD Time Division Duplex TEK Traffic Encryption Key TSCM-I ToP Slave Clock Mezzanine board assembly-Industrial Tx/Rx Transmit/Receive U UDP User Datagram Protocol UL Uplink UCCM-P Universal Core Clock Module-Plus USB Universal Serial Bus VCCI Voluntary Control Council for In
MPE Information Warning: Exposure to Radio Frequency Radiation The radiated output power of this device is far below the FCC radio frequency exposure limits. Nevertheless, the device should be used in such a manner that the potential for human contact during normal operation is minimized. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, human proximity to the antenna should not be less than 300cm during normal operation. The gain of the antenna is 17 dBi.
Mobile WiMAX RAS SPI-2L10 System Description ©2010 Samsung Electronics Co., Ltd. All rights reserved. Information in this manual is proprietary to SAMSUNG Electronics Co., Ltd. No information contained here may be copied, translated, transcribed or duplicated by any form without the prior written consent of SAMSUNG. Information in this manual is subject to change without notice.
