IEEE C802.16gman-10/0055 1 Project IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16> Title Proposed Protocol Structure for IEEE 802.16n Date Submitted 2010-11-04 Source(s) E-mail: Eunkyung Kim, Sungcheol Chang, Sungkyung Kim, Hyun Lee, Chulsik Yoon ekkim@etri.re.kr scchang@etri.re.kr ETRI Re: “IEEE 802.16gman-10/0038r1,” in response to the agreement by the Gridman TG at session #69 to issue a CFC for SARM Abstract Protocol Structure on IEEE 802.16n SRD Purpose To discuss and adopt the proposed text in the SRD of 802.16n Notice Release Patent Policy 2 3 4 5 6 7 8 9 10 11 This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein. 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Proposed Protocol Structure for IEEE 802.16n Eunkyung Kim, Sungcheol Chang, Sungkyung Kim, Hyun Lee, Chulsik Yoon ETRI Instructions This document provides in response to the agreement by the Gridman TG at session #69 to issue a CFC for SARM to address the SARM contents as an annex of SRD(i.e., IEEE 802.16gman-10/0038r1[1]) of TGn. Some sections may already exist in IEEE Std. 802.16-2009[2] and IEEE 802.16m SDD[3] where at a minimum clarification would be required to explain the impact of the introduction of a HR-Network mechanism and/or a HR-Network entity (e.g., HR station) on the existing features. 1 IEEE C802.16gman-10/0055 1 Comments on this contribution propose new subclauses whenever a revision/insertion is anticipated. 2 3 4 5 However, it is understood that during the course of standards development, some of these new sections may be deemed unnecessary, in which case they will be deleted. Similarly, new sections may be added if deemed necessary. Informative remarks are shown in italic with square bracket and it shall be removed when the proposed text is adapted to the SRD. Note that editorial remarks are meant to be informative only. 6 7 8 9 10 11 12 References 13 14 15 Proposed Protocol Architecture for the 802.16n System Requirement Document (SRD) 16 17 18 [1] IEEE 802.16gman-10/0038r1, “(DRAFT) 802.16n System Requirements Documents,” September 2010. [2] IEEE Std. 802.16-2009, “IEEE Standard for Local and metropolitan area networks; Part 16: Air Interface for Broadband Wireless Access Systems,” May 2009. [3] IEEE 802.16m-09/0034r3, “IEEE 802.16m System Description Document (SDD),” June 2010. [-------------------------------------------------Start of Text Proposal---------------------------------------------------] [Remedy: Add the following text in the end of 802.16gman-10/0038r1] [Some highlighted change and enhancement to the IEEE 802.16m are shown in blue color.] 19 20 Annex X: IEEE 802.16n Air-Interface Protocol Structure 21 X.1 IEEE 802.16n Protocol Structure 22 23 Figure XX shows the IEEE 802.16n Protocol Structure. As shown the figure, the IEEE 802.16n MAC is divided into two sublayers: 24 - Convergence Sublayer (CS) 25 - Common Part Sublayer (CPS) 26 27 28 29 30 The MAC Common Part Sublayer is further classified into Radio Resource Control and Management (RRCM) functions and medium access control (MAC) functions. The RRCM functions fully reside on the control plane. The functions reside on the control and data planes. The RRCM functions include several functional blocks that are related to radio resource functions such as: 31 32 33 - Radio Resource Management: Indicates a block which adjusts radio network parameters based on the traffic load, and also includes functions of load control (load balancing), admission, and interference control. 34 35 36 37 38 - Mobility Management: Indicates a block which supports functions related to Intro-RAT/Inter-RAT handover. Mobility Management block also handles the Intro-RAT/Inter-RAT Network topology acquisition which includes the advertisement and measurement, manages candidate neighbor target R1 BSs/ABSs/HR-BSs/RSs/ARSs/HR-RSs and also decides whether HR-MS/Mobile Base Station performs Intra-RAT/Inter-RAT handover operation. 2 IEEE C802.16gman-10/0055 1 2 3 - Network-entry Management: Indicates a block which is in charge of initialization and access procedures. The Network-entry Management block may generate management messages which are needed during access procedures, i.e., ranging, basic capability negotiation, registration, and so on. 4 5 - Location Management: Indicates a block which is in charge of supporting location based service (LBS). The Location Management block may generate messages including the LBS information. 6 7 8 - Idle Mode Management: Indicates a block which manages location update operation during idle mode. The Idle Mode Management block controls idle mode operation, and generates the paging advertisement message based on paging message from paging controller in the core network side. 9 10 - System Configuration Management: Indicates a block which manages system configuration parameters, and transmits system configuration information to the HR-MS/HR-RS. 11 12 - MBS: Indicates a block which controls management messages and data associated with broadcasting and/or multicasting service. 13 14 - Service Flow and Connection Management: Indicates a block which allocates connection identifier during access/handover service flow creation procedures. 15 16 17 18 - Self Organization: Indicates a block which performs functions to support self-configuration and selfoptimization mechanisms. The functions include procedures to request HR-RSs/HR-MSs to report measurements for self-configuration and self-optimization and receive the measurements from the HRRSs/HR-MSs. 19 20 21 22 23 24 - Multi-Carrier: Indicates a block which enables a common MAC entity to control a PHY spanning over multiple frequency channels. The channels may be of different bandwidths (e.g. 5, 10 and 20 MHz) on contiguous or non-contiguous frequency bands. The channels may be of the same or different duplexing modes, e.g. FDD, TDD, or a mix of bidirectional and broadcast only carriers. For contiguous frequency channels, the overlapped guard sub-carriers are aligned in frequency domain in order to be used for data transmission. 25 26 27 28 29 30 31 32 33 34 35 36 - Security Management: Indicates a block which is in charge of authentication/authorization and key management for secure communication. Traffic encryption/decryption and authentication are performed using a managed encryption key. The Security Management block also supports security operation meeting the requirements described in Section 6.1.4. - Enhanced Relay Function: Indicates a block which includes functions to support multi-hop relay mechanisms. The functions include procedures to maintain relay paths between ABS/HR-BS and an access ARS/HR-RS. The Enhanced Relay Function block also supports multi-hop relay mechanisms such as maintaining relay paths and forwarding locally at HR-RS. Enhanced Relay Function also supports the single point of failure (SPOF) immunity using single or multiple hop relay. - Direct Communication Management: Indicates a block which supports HR-MS to HR-MS direct communication meeting the requirements described in Section 6.1.3.1. Direct Communication Management MAC function consists on the following blocks: 37 38 39 40 41 Configuration management: Indicates a function which supports resource configuration in a frame, where the resource configuration is shared by HR-BS and HR-MS(s). In infrastructure station’s coverage, the infrastructure station shall allocate resource for the direct communication. However, in the absence of infrastructure station, HR-MS uses any shared resource among HR-MSs communicating one another directly. 42 Connection and resource management: Indicates a function which manages direct communication 3 IEEE C802.16gman-10/0055 1 2 3 including establishment, maintenance, release, and change the resource between HR-MS and one or more HR-MSs. Connection and resource management also allocates resource for the direct communication and MR-MS transmits data and signaling control messages to one or more HR-MSs. 4 5 6 7 8 9 Forwarding management: Indicates a function which supports exchanging data and control signaling at the in-coverage HR-MS (i.e., in the coverage of the infrastructure station) between outof-coverage HR-MS (i.e., out of the coverage of the infrastructure station) and infrastructure station. The configuration of the forwarding function consists of communication between the in-coverage HR-MS and infrastructure station and direct communication between the in-coverage HR-MS and out-of-coverage HR-MS. 10 11 12 Two hop communication management: Indicates a function which manages the two hop communication and supports that the HR-MS engaged in both direct communication segments repeats data and control signaling to each other direct communication segment. 13 14 15 16 17 18 - Standalone Management: Indicates a block which supports standalone operation of immunizing the loss of HR-BS’ backbone connectivity meeting the requirements described in Section 6.1.2.1. The HR-BS provides only MAC layer connectivity among subordinated HR-MSs without network aided functions such as authentication, IP address allocation, IP packet handling, and PTT server operation. Those subordinated HR-MSs have a feature of direct communication in the view of peer-to-peer communication. 19 20 21 - Multi-Mode Management: Indicates a block which supports multi-mode operation meeting the requirements described in Section 6.1.1. Multi-mode Management MAC function consists on the following functional blocks: 22 23 24 25 26 Multi-mode configuration and control management: Indicates a function which changes the role of HR-station in HR-Network when an infrastructure station breaks up or the condition of wireless link changes. Multi-mode configuration and control management also manages dynamic network (re)configuration, including network merge/separate process as well as network initiation/termination process. 27 28 29 Connection maintenance and management: Indicates a function which maintains ongoing services and manages connections of subordinate HR-MSs, including group network re-entry, group handover, priority access control, and callback handover. 30 31 32 33 Link measurement and report management: Indicates a function which measures wireless links among HR-stations. Measured wireless link qualities are reported to HR-stations in HR-Network. To support dynamic network (re)configuration, HR-BSs exchange information (e.g., topology, channel quality) each other. 34 35 36 37 - Enhanced Multicast: Indicates a block which controls management messages and data associated with multicast communication meeting the requirements described in Section 6.2.1. In the control plane, Enhanced Multicast MAC function operates in parallel with the other MAC functions independently. Enhance Multicast Communication MAC function consists of the following functional blocks: 38 39 40 Enhanced Multicast Group Configuration Management: Indicates a function which manages the configuration including establishment, update, release, advertisement in a multicast group. A HRBS could belong to multiple multicast groups. 41 42 Enhanced Multicast Session Management: Indicates a function which manages a multicast service registration/de-registration and session start/update/termination regardless of HR-MS’ state. 4 IEEE C802.16gman-10/0055 1 2 3 4 Enhanced Multicast Key Management: Indicates a function which manages a reliable transmission of multicast in a group of HR-MSs supporting SPOF immunity as well as HR-MS to HR-MS direct communication. Enhanced Multicast Key Management also supports secure transmission including multicast key encryption/decryption in cooperation with Security Management. 5 6 7 Enhanced Multicast Control Management: Indicates a function which broadcasts the multicast scheduling and logical-to-physical channel mapping to facilitate multicast reception and to conserve power of HR-MS. 8 9 10 11 12 - High Reliability Control and Reporting Management: Indicates a block which supports functions related to high reliability control and report meeting the requirements described in Section 6.2.2. In the control plane, High Reliability Control and Reporting Management MAC function operates in parallel with the other MAC functions independently. High Reliability Control and Reporting Management MAC function consists on the following functional blocks: 13 14 High Reliable Control Management: Indicates a function which controls HR-stations high reliably to monitor and sense for the proper purpose. 15 16 High Reliable Report Management: Indicates a function which manages HR-stations to report the result of the monitoring or sensing. 17 18 High Reliable Connection Management: Indicates a function which manages a reliable service registration/de-registration and reliable connection start/update/termination to control and report. 19 20 21 22 23 - Path Management: Indicates a block which controls and operates functionalities, including path discovery and path management meeting the requirements described in Section 6.1.3.3 and 6.1.3.4, respectively. In the control plane, Path Management MAC function operates in parallel with the other MAC functions independently. Path Management MAC function consists on the following functional blocks: 24 25 26 Path Configuration Management: Indicates a function which manages the configuration in HRNetwork to support path management operation, including path discovery, path establishment, path selection, path maintenance, path recovery. 27 28 Path Control Management: Indicates a function which controls the path between HR-MSs as well as between HR-MS and HR-Network infrastructure stations. 29 30 31 Path Discovery Management: Indicates a function which discovers neighbor and path between HRMSs as well as between HR-MS and HR-Network infrastructure stations. Path discovery is performed periodically and in the event of disruption. 32 33 Path Maintenance Management: Indicates a function which manages path establishment, path releasing, path re-establishment between HR-MS and HR-station. 34 35 36 Path selection (redundancy) management: path selection among multiple paths, path recovery and path releasing. Path selection includes current path to transmit data and alternative paths to support fast recovery. 37 38 The control plane part of the Medium Access Control (MAC) functional group includes functional blocks which are related to the physical layer and link controls such as: 39 40 41 - PHY Control: Indicates a block which handles PHY signaling such as ranging, measurement/feedback (CQI), and HARQ ACK/NACK. Based on CQI and HARQ ACK/NACK, the PHY Control block estimates channel quality as seen by the HR-MS, and performs link adaptation via adjusting modulation 5 IEEE C802.16gman-10/0055 1 2 and coding scheme (MCS), and/or power level. In the ranging procedure, PHY Control block does UL synchronization with power adjustment, frequency offset and timing offset estimation. 3 - Control Signaling: Indicates a block which generates resource allocation messages. 4 5 6 - Sleep Mode Management: Indicates a block which handles sleep mode operation. The Sleep Mode Management block may also generate MAC signaling relate to sleep operation, and may communicate with Scheduling and Resource Multiplexing block in order to operate properly according to sleep period. 7 8 - QoS: Indicates a block which handles QoS management based on QoS parameters input from Service Flow and Connection Management block for each connection. 9 10 11 - Scheduling and Resource Multiplexing: Indicates a block which schedules and multiplexes packets based on properties of connections. In order to reflect properties of connections, the Scheduling and Resource Multiplexing block receives QoS information from QoS block for each connection. 12 13 14 15 16 - Multi-Radio Coexistence: Indicates a block which performs functions to support concurrent operations of IEEE 802.16m and non-IEEE 802.16m radios collocated on the same mobile station. - Coexistence Management: Indicates a block which performs functions to support operation in unlicensed and lightly licensed bands meeting the requirements described in Section 6.1.5.1 and multicarrier operation in different licensing regimes meeting the requirements described in Section 6.1.5.2. 17 [Describe the multi-radio support protocol with the constituent sub-functions.] 18 19 20 - Data Forwarding: Indicates a block which performs forwarding functions when HR-RSs are present on the path between HR-BS and HR-MS. The Data Forwarding block may cooperate with other blocks such as Scheduling and Resource Multiplexing block and MAC PDU formation block. 21 22 - Interference Management: Indicates a block which performs functions to manage the inter-cell/sector interference. The operations may include: 23 MAC layer operation 24 Interference measurement/assessment report sent via MAC signaling 25 Interference mitigation by scheduling and flexible frequency reuse 26 PHY layer operation 27 Transmit power control 28 Interference randomization 29 Interference cancellation 30 Interference measurement 31 Tx beamforming/precoding 32 33 34 35 36 - Inter-BS Coordination: Indicates a block which performs functions to coordinate the actions of multiple HR-BSs by exchanging information, e.g., interference management. The functions include procedures to exchange information for e.g., interference management between the HR-BSs by backbone signaling and by HR-MS MAC messaging. The information may include interference characteristics, e.g. interference measurement results, etc. 37 38 The data plane includes the following MAC functions: 6 IEEE C802.16gman-10/0055 1 2 - Fragmentation/Packing: Indicates a block which performs fragmenting or packing MSDUs based on scheduling results from Scheduling and Resource Multiplexing block. 3 4 5 6 - ARQ: Indicates a block which handles MAC ARQ function. For ARQ-enabled connections, a logical ARQ block is generated from fragmented or packed MSDUs of the same flow. The ARQ logical blocks are sequentially numbered. The ARQ block may also generate ARQ management messages such as feedback message (ACK/NACK information). 7 8 9 10 - MAC PDU formation: Indicates a block which constructs MAC control data unit (PDU) so that HRBS/HR-MS can transmit user traffic or management messages into PHY channel. MAC PDU formation block adds MAC header and may add sub-headers. Based on input from the security management block, the encryption block can encrypt user traffic or management message by a managed encryption key. Network Network Layer Layer CS_SAP CS_SAP C_SAP C_SAP M_SAP M_SAP Convergence Convergence sublayer sublayer Direct communication management Enhanced multicast management Enhanced Relay Function Radio Radio Resource Resource Management Management Location Location management management System System configuration configuration management management Standalone management High reliable control and reporting management Multi-Carrier Multi-Carrier Support Support Mobility Mobility management management Idle Idle Mode Mode management management MBS MBS Multi-mode management Path management Self-Organization Self-Organization Network Network entry entry managment managment Security management Service Service Flow Flow and and Connection Connection Management Management Classification Classification Header Header suppression suppression MAC_SAP MAC_SAP Radio Resource Control and Management (RRCM) Fragmentation Fragmentation and and Packing Packing Medium Access Control (MAC) QoS QoS Multi-Radio Coexistence ARQ ARQ Sleep Sleep Mode Mode Management Management Scheduling Scheduling and and Resource Resource Multiplexing Multiplexing MAC MAC PDU PDU formation formation PHY PHY control control Data Data Forwarding Forwarding Interference Interference Management Management Ranging Ranging Encryption Encryption Link Link Adaptation Adaptation (CQI, (CQI, HARQ, HARQ, power power control) control) Control Plane Data Plane Physical Physical Layer Layer 11 12 Control Control signaling signaling Figure XX: IEEE 802.16n Protocol Structure 13 14 X.1.1 HR-MS/HR-BS Data Plane Processing Flow 15 16 17 Figure XX+1 shows the user traffic data flow and processing at the HR-BS and the HR-MS. The read arrows show the user traffic data flow from the network layer to the physical layer and vice versa. On the transmit side, a network layer packet is processed by the convergence sublayer, the ARQ function (if enabled), the 7 IEEE C802.16gman-10/0055 1 2 3 4 5 fragmentation/packing function and the MAC PDU formation function, to form MAC PDU(s) to be sent to physical layer. On the receiver side, a physical layer SDU is processed by MAC PDU formation function, fragmentation/packing function, the ARQ function (if enabled) and convergence sublayer function, to form network layer packets. The black arrows show the control primitive among the CPS functions and between CPS and PHY that are related to the processing of user traffic data. the the the the C_SAP C_SAP M_SAP M_SAP Network Network Layer Layer Direct communication management Enhanced multicast management Enhanced Relay Function Radio Radio Resource Resource Management Management Location Location management management System System configuration configuration management management Standalone management High reliable control and reporting management Multi-Carrier Multi-Carrier Support Support Mobility Mobility management management Idle Idle Mode Mode management management MBS MBS Self-Organization Self-Organization Network Network entry entry managment managment Security management Service Service Flow Flow and and Connection Connection Management Management Convergence Convergence sublayer sublayer Classification Classification Header Header suppression suppression Multi-mode management Path management Medium Access Control (MAC) Sleep Sleep Mode Mode Management Management QoS QoS Fragmentation Fragmentation and and Packing Packing ARQ ARQ Multi-Radio Coexistence Scheduling Scheduling and and Resource Resource Multiplexing Multiplexing MAC MAC PDU PDU formation formation PHY PHY control control Data Data Forwarding Forwarding Interference Interference Management Management Ranging Ranging Link Link Adaptation Adaptation (CQI, (CQI, HARQ, HARQ, power power control) control) Control Control signaling signaling Encryption Encryption PHY control signaling Physical Physical Layer Layer 6 7 8 9 10 11 12 13 14 15 16 17 18 Figure XX+1: IEEE 802.16n HR-MS/HR-BS Data Plane Processing Flow (Note: The HR-MS may not utilize all the blocks shown.) X.1.2 HR-MS/HR-BS Control Plane Processing Flow Figure XX+2 shows the MAC CPS control plane signaling flow and processing at the HR-BS and the HR-MS. On the transmit side, the blue arrows show the flow of control plane signaling from the control plane functions to the data plane functions and the processing of the control plane signaling by the data plane functions to form the corresponding MAC signaling (e.g., MAC control messages, MAC header/sub-header) to be transmitted over the air. On the receiver side, the blue arrows show the processing of the received over-the-air MAC signaling by the data plane functions and the reception of the corresponding control plane signaling by the control plane functions. The black arrows show the control primitives among the CPS functions and between the CPS and PHY that are related to the processing of control plane signaling. The black arrows between 8 IEEE C802.16gman-10/0055 1 2 3 4 5 6 7 Management SAP (M_SAP)/ Control SAP (C_SAP) and MAC functional blocks show the control and management primitives to/from Network Control and Management System (NCMS). The primitives to/from M_SAP/C_SAP define the network involved functionalities such as inter-ABS interference management, inter/intra RAT mobility management, etc, and management related functionalities such as location management, system configuration etc. The Control SAP and Management SAP expose control plane and management plane functions to upper layers. C_SAP C_SAP M_SAP M_SAP Network Network Layer Layer Direct communication management Enhanced multicast management Enhanced Relay Function Radio Radio Resource Resource Management Management Location Location management management System System configuration configuration management management Standalone management High reliable control and reporting management Multi-Carrier Multi-Carrier Support Support Mobility Mobility management management Idle Idle Mode Mode management management MBS MBS Multi-mode management Path management SelfSelfOrganization Organization Network Network entry entry managment managment Security management Service Service Flow Flow and and Connection Connection Management Management Convergence Convergence sublayer sublayer Classification Classification Header Header suppression suppression Medium Access Control (MAC) QoS QoS Fragmentation Fragmentation and and Packing Packing Scheduling Scheduling and and Resource Resource Multiplexing Multiplexing ARQ ARQ Sleep Sleep Mode Mode Management Management Multi-Radio Coexistence PHY PHY control control Data Data Forwarding Forwarding Interference Interference Management Management Ranging Ranging MAC MAC PDU PDU formation formation Link Link Adaptation Adaptation (CQI, (CQI, HARQ, HARQ, power power control) control) Control Control signaling signaling Encryption Encryption PHY control signaling Physical Physical Layer Layer 8 9 10 Figure XX+2: IEEE 802.16n HR-MS/HR-BS Control Plane Processing Flow (Note: The HR-MS may not utilize all the blocks shown.) 11 12 X.2 HR-RS Protocol Structure 13 14 Figure XX+3 shows the protocol structure for a HR-RS. A HR-RS may consist on a subset of the protocol functions shown in Figure XX+3. The subset of functions depends on the type or category of the HR-RS. 15 16 The functional blocks and the definitions in the section do not imply that these functional blocks are supported in all HR-RS implementations. 17 The HR-RS MAC is divided into two sublayers: 9 IEEE C802.16gman-10/0055 1 - Radio Resource Control and Management (RRCM) sublayer 2 - Medium Access Control (MAC) sublayer 3 4 The HR-RS RRCM sublayer includes the following functional blocks that are related to the HR-RS radio resource functions: 5 6 - Mobility Management: Indicates a block which supports HR-MS handover operations in cooperation with the HR-BS. 7 8 9 10 - Network-entry Management: Indicates a block which is in charge of HR-RS/HR-MS initialization procedures and performing HR-RS network entry procedure to the HR-BS. Network-entry Management block may generate management messages needed during HR-RS/HR-MS initialization procedures and performing the network entry. 11 12 - Location Management: Indicates a block which is in charge of supporting location based service (LBS), including positioning data, at the HR-RS and reporting location information to the HR-BS. 13 - MBS: Indicates a block which coordinates with the HR-BS to schedule the transmission of MBS data. 14 15 - Self-Organization: Indicates a block which performs functions to support HR-RS self-configuration and HR-RS self-optimization mechanisms in coordination with HR-BS. 16 17 18 19 - Multi-Carrier: Indicates a block which enables a common MAC entity to control a PHY spanning over multiple frequency channels at HR-RS. - Security Management: Indicates a block which supports secure key management and traffic encryption/decryption using a managed encryption key in coordination with HR-BS. 20 21 22 - Enhanced Relay Functions: Indicates a block which maintains single or multiple relay paths to immunize SPOF, supports multi-hop relay, and forwards data and control signaling locally at the HR-RS in coordination with HR-BS. 23 24 - Multi-Mode Management: Indicates a block which supports dynamical change roles of HR-stations with HR-RS 25 26 - Enhanced Multicast: Indicates a block which coordinates with the HR-BS to schedule control management messages and data associated with multicast communication. 27 28 - High Reliability Control and Reporting Management: Indicates a block which supports functions related to high reliability control and report at HR-RS in coordination with HR-BS. 29 30 - Path Management: Indicates a block which supports path management operation in coordination with HR-BS. 31 32 33 The HR-RS Medium Access Control (MAC) sublayer on the control plane includes the following function blocks which are related to the physical layer and link controls: 34 35 36 37 - PHY Control: Indicates a block which handles PHY signaling such as ranging, measurement/feedback (CQI), and HARQ ACK/NACK at the HR-RS. Based on CQI and HARQ ACK/NACK, PHY Control block estimates channel environment of HR-RS/HR-MS, and performs link adaptation via adjusting modulation and coding scheme (MCS) or power level. 38 39 - Control Signaling: Indicates a block which generates HR-RS resource allocation messages such as downlink control as well as specific control signaling messages. 10 IEEE C802.16gman-10/0055 1 2 - Sleep Mode Management: Indicates a block which handles Sleep Mode operation of its HR-MSs in coordination with the HR-BS. 3 4 - QoS: Indicates a block which handles rate control based on QoS parameters using inputs from other functional block. 5 6 7 - Scheduling and Resource Multiplexing: Indicates a block which schedules the transmission of MPDUs. The Scheduling and Resource Multiplexing block is present in the HR-RS in order to support distributed scheduling. 8 9 10 - Data Forwarding: Indicates a block which performs forwarding functions on the path between HR-BS and HR-RS/HR-MS. The Data Forwarding block may cooperate with other blocks such as Scheduling and Resource Multiplexing block and MAC PDU formation block. 11 12 - Interference Management: Indicates a block which performs functions at the HR-RS to manage the intercell/sector and inter-HR-RS interference among HR-RS and HR-BS. 13 14 - Multi-Radio Coexistence: Indicates a block which handles multi-radio coexistence operation of HR-RS’ AMSs in coordination with the HR-BS. 15 16 17 - Coexistence Management: Indicates a block which performs functions to support operation in unlicensed and lightly licensed bands meeting the requirements described in Section 6.1.5.1 and multicarrier operation in different licensing regimes meeting the requirements described in Section 6.1.5.2. 18 19 [Describe the multi-radio support protocol with the constituent sub-functions.] The MAC functions on the data plane include the following: 20 - ARQ: Indicates a block which assists MAC ARQ function between HR-RS, HR-RS and HR-MS. 21 22 23 24 - Fragmentation/Packing: Indicates a block which performs fragmenting or packing MSDUs based on scheduling results from Scheduling and Resource Multiplexing block. The Fragmentation/Packing block in a HR-RS includes the unpacking and repacking of fragments that have been received for relaying in order to adapt the size of MPDUs to the expected channel quality of the outgoing link. 25 26 27 28 29 - MAC PDU formation: Indicates a block which constructs MAC protocol data unit (PDUs) which contain user traffic or management messages. User traffic is assumed to have originated at either the HR-BS or HR-MS. The MAC PDU formation block may add or modify MPDU control information (e.g., MAC header). Based on input from the security management block, the encryption block can encrypt user traffic or management messages by a managed encryption key. 11 IEEE C802.16gman-10/0055 C_SAP C_SAP M_SAP M_SAP Network Network Layer Layer Multi-mode management Enhanced multicast management Enhanced Relay Function High reliable control and reporting management Multi-Carrier Multi-Carrier Support Support Mobility Mobility management management Path management Self-Organization Self-Organization Network Network entry entry managment managment Location Location management management MBS MBS Security management Radio Resource Control and Management (RRCM) Fragmentation Fragmentation and and Packing Packing Medium Access Control (MAC) QoS QoS Multi-Radio Coexistence ARQ ARQ Sleep Sleep Mode Mode Management Management Scheduling Scheduling and and Resource Resource Multiplexing Multiplexing MAC MAC PDU PDU formation formation PHY PHY control control Data Data Forwarding Forwarding Interference Interference Management Management Ranging Ranging Encryption Encryption Link Link Adaptation Adaptation (CQI, (CQI, HARQ, HARQ, power power control) control) Control Plane 1 2 Control Control signaling signaling Data Plane Physical Physical Layer Layer Figure XX+3: IEEE 802.16n HR-RS Protocol Structure 3 4 5 6 [-------------------------------------------------End of Text Proposal----------------------------------------------------] 12