JP2008533942A - Scanning execution method for broadband wireless access system - Google Patents

Abstract

The primitives between the upper management layer and the MAC layer in the mobile station and base station are defined to clarify the operation in the protocol stack layer of the broadband wireless access system that allows the mobile station to perform the scanning procedure. Since the NCMS and MIH layers can communicate using this primitive, a media independent handover (MIH) procedure can be achieved. More specifically, the primitives used for the protocol stack in the mobile station and the protocol stack in the base station are clearly defined to support the scanning operation performed by the mobile station to confirm the channel quality of the neighboring base station. Regarding the method.

Description

  The present invention relates to a broadband wireless access system, and more particularly, to support a scanning operation performed by a mobile station to confirm channel quality of an adjacent base station, and a protocol stack and a base in the mobile station. It relates to a method for unambiguously defining primitives used for in-station protocol stacks.

  Unlike the conventional second generation and third generation mobile communication systems, the IEEE 802.16e system, which is in the process of international standardization for wireless connection systems, differs from the HLR (Home Location Register), VLR (Visitor Location Register), and MSC (Mobile). It does not have a hierarchical architecture such as Switching Center (BSC), Base Station Controller (BSC), and Radio Network Controller (RNC), but instead MSB (Mobile Subscriber Station), BS (Base SatorAth), IC Consists of only.

  The broadband wireless access system defines a medium access control (MAC) layer and a physical (PHYsical) layer protocol that are common between a base station and a mobile station (MSS). FIG. 1 shows an example of a protocol hierarchy architecture for a broadband wireless access system.

  FIG. 2 shows a procedure for searching for adjacent base station information and broadcasting in a wireless connection system according to the prior art.

  When the mobile station (MSS) receives an adjacent base station information broadcast message (MOB_NBR-ADV) from the serving base station [S21], the mobile station temporarily suspends data reception from the serving base station. A scan request message (MOB_SCN-REQ) is transmitted to obtain a predetermined time (duration = N frames) for performing channel quality measurement of the base station [S22]. While the mobile station measures the channel quality of the adjacent base station, the serving base station stops and stores the data transmission to the mobile station, and the scanning (search) time requested by the mobile station. After completion, transmit the data. The MOB_NBR-ADV is a message that the serving base station broadcasts to provide the mobile station with information on neighboring base stations. The total number of neighboring base stations, the identifier of neighboring base stations, and the frequency used by neighboring base stations , Including channel information of adjacent base stations.

  In response to the scan request message (MOB_SCN-REQ) transmitted from the mobile station, the serving base station transmits a scan response message (MOB_SCN-RSP) [S23]. In FIG. 2, the serving base station is guaranteed time for measuring channel quality of adjacent base stations from the Mth frame to the Nth frame. That is, a scanning (search) period requested by the mobile station is guaranteed by a scan request message and a scan response message between the mobile station and the serving base station, and the mobile station and the serving base station have a guaranteed period of time Agree that it must start after the Mth frame. Thereafter, the mobile station measures the channel quality of the neighboring base station during the guaranteed scanning period [S24, S25]. The mobile station provides a scanning result to the serving base station by transmitting a scanning result report message (MOB_SCAN-REPORT) [S26].

  As described above, in the prior art, messages used by the mobile station to perform scanning and transmitted / received to / from the base station are defined, but the protocol stack (layer) and the base in the mobile station regarding the actual scanning are actually defined. The operation of the protocol stack (layer) in the station is not defined. That is, the primitive for the information transmitted between the MAC layer and the upper management entity via NCMS (Network Control Management System) is not defined in each protocol stack of the mobile station and the base station.

  One aspect of the present invention includes our recognition of the conventional problems as described above. In order to solve such a problem, the present invention provides an upper management layer and a MAC in order to clarify the operation in the protocol stack layer in the broadband wireless access system so that the mobile station can perform the scanning procedure. Provides a way to define primitives between.

  When the mobile station performs scanning using the primitives defined by the present invention, accurate operation can be achieved in the protocol stack layer. As a result, the NCMS and MIH layers can communicate directly or indirectly using primitives, so that a Media Independent Handover (MIH) procedure can be achieved.

  The present invention is described as being implemented in a broadband wireless access system such as an 802.16e network. However, since the concept and contents of the present invention can be applied to various communication schemes that operate in a similar manner based on general technology, the present invention can be applied to other types of communication specifications (e.g. .21, 802.11u, etc.) can be adopted and realized. Hereinafter, the present invention will be described with reference to the accompanying drawings, but embodiments of the present invention are not limited thereto.

  In addition, specific names of entities, interfaces, primitives, messages, and the like are described in the predetermined aspects of the present invention. However, those skilled in the art will recognize that functions of other names (labels, terms, etc.) are functions described by the present invention. It will be clearly understood that other names can be used as long as they are supported and are not limited to such names.

  The present invention transmits a primitive from a MAC layer to a necessary higher-level management entity via a network control management system (NCMS), so that an entity that manages and controls the system (mobile station or base station) can control the MAC layer and the PHY. Provide a way to manage tiers. In particular, when the mobile station performs scanning, a method for defining a primitive that needs to be transmitted between the MAC layer and the upper management entity via the NCMS in a protocol stack in the mobile station and the base station is provided. To do.

  Hereinafter, the management entity refers to all entities interfaced with the NCMS, and may be any logical management entity or physical management entity existing in the IP layer or higher layer in the device. In the operation of the present invention, since communication is performed from a higher management entity to a management SAP (Management SAP: M-SAP) or a control SAP (Control SAP: C-SAP) via NCMS, the NCMS directly transmits a primitive ( Seems to communicate).

  As shown in FIG. 1, the upper management entity used in the present invention is located above the hierarchical management entity in the protocol stack, and communicates with the physical or logical communication via the NCMS or the management SAP of the hierarchical management entity. It is classified as a general upper management entity. The upper management entity may exist in a specific protocol stack or may exist as a separate independent system or stack, but is conceptually referred to as an upper management entity.

  FIG. 3 shows an example of a protocol architecture model considering media independent handover (MIH).

  The primitive provided by the present invention is transmitted to a network control management system (NCMS) via a management SAP (M-SAP) or a control SAP (C-SAP), and the NCMS transmits the primitive to the upper management entity. Transmit to the required position including.

  The M-SAP has functions such as system configuration execution, monitoring statistics, and notification / trigger, but is not limited thereto. The C-SAP includes handover execution (for example, notification of HO request from MS, etc.), idle mode mobility management (for example, mobile entering idle mode), subscriber and session management (for example, mobile requesting session setup), It has functions such as radio resource management, but is not limited to this. The primitive of the present invention is classified according to the function, and the primitive can be transmitted through the management SAP and / or the control SAP.

  4 and 5 illustrate the principle by which primitives operate according to the present invention. Primitives that require interaction with a remote entity are shown in FIG. 4, and primitives that are transmitted only within the local stack are shown in FIG.

  As shown in FIG. 4, when working with a remote entity, a pair of operations consisting of “Request” and “Configuration” or “Response” and “Indication” is performed.

  As shown in FIG. 5, when an operation is performed in the local stack, there are two situations: a situation where an exchange (ie, bidirectional operation) is performed between the management entity and NCMS, or a situation where a unidirectional operation is performed. There is. In the case of bidirectional operation, transmission from the management entity to the NCMS via M-SAP / C-SAP is called “Request”, and the transmitted response is called “Indication”. In the case of unidirectional operation, transmission from the management entity to the NCMS via the M-SAP / C-SAP is referred to as “Request”, and unidirectional transmission in the opposite direction is referred to as “Indication”.

  In the case of a multi-mode mobile station, the primitive according to the present invention is used when a management entity commands a corresponding mode or when a corresponding mode conveys information to all the entities that manage the multi-mode. In such a case, there are the following two situations.

  First, when transmitting a primitive from the MIH layer or MIH function to a lower layer, whether the MIH (layer or function) interprets information (for example, a command) received from the upper layer when transmitting the corresponding primitive. The upper layer information (command) is mapped and transmitted with the command of the present invention.

  Second, when a primitive is transmitted from the lower layer to the MIH layer or MIH function, the MIH (layer or function) is transmitted when the corresponding primitive transmitted to the upper layer (that is, the integrated primitive defined in MIH) is transmitted. ) Interprets the primitive received from the lower layer, or the lower layer primitive and the primitive transmitted to the upper layer are simply mapped and transmitted.

  When used in Media Independent Handover (MIH), primitives defined by the present invention are transmitted via the SAP between the NCMS and the MIH or the SAP between the management entity and the MIH, so that the MIH technology can be realized. .

  A method for performing scanning in a broadband wireless access system includes: receiving a neighboring base station information broadcast message (MOB_NBR-ADV) transmitted from a base station by a MAC layer of a mobile station; and broadcasting the neighboring base station information broadcast by the MAC layer. Transmitting information included in the message to the upper management entity by a first primitive, transmitting a second primitive from the upper management entity indicating that scanning must be performed in the MAC layer, Scanning a station in the MAC layer and the MAC layer transmitting the scanning result to the upper management layer using a third primitive.

  In order for the mobile station to perform scanning using the MAC message transmitted / received to / from the base station and the primitive provided by the present invention, between the upper management entity and the MAC layer via NCMS in the mobile station and the base station. An embodiment for explaining the operation to be performed will be described with reference to FIGS. 6 and 7 attached.

  FIG. 6 is a flowchart illustrating a preferred embodiment of the present invention, in which the mobile station performs scanning without providing a scanning request to the base station. Even if there is no neighboring base station information transmitted from the base station, the mobile station can request scanning, and the mobile station can independently perform scanning.

  The MAC layer of the mobile station receives the MOB_NBR-ADV message from the base station [S51], and can transmit the information included in the message to the upper management entity of the mobile station using the M_Neighbor-indication primitive [S52]. The MOB_NBR-ADV is a message that the base station broadcasts in order to provide the mobile station with information on neighboring base stations. The MOB_NBR-ADV message includes the total number of base stations, the identifiers of neighboring base stations, The frequency used by the base station, channel information of adjacent base stations, and the like are included.

  The NCMS entity of the mobile station instructs the MAC layer of the mobile station to perform scanning. The request is transmitted [S53]. The MAC layer of the mobile station performs scanning [S54], and then sends the result to M_Scanning. The information is transmitted to the upper management entity by the confirmation primitive [S55].

  FIG. 7 is a flowchart showing another preferred embodiment of the present invention. After the mobile station requests scanning from the base station, scanning is performed.

  After receiving the MOB_NBR-ADV message from the base station [S61], the mobile station MAC layer receives the M_ScanScheduling.M request to instruct the base station to request a MOB_SCN-REQ message. The information contained in this message is transmitted to the upper management entity of the mobile station using a request primitive [S63].

  The MAC layer of the mobile station transmits a MOB_SCN-REQ message to the MAC layer of the base station [S64], and M_ScanScheduling. The contents of the MOB_SCN-REQ message are transmitted to the upper management entity of the base station using an indication primitive [S65].

  Here, it should be noted that the scan scheduling includes at least one element from a scan period, a scan repetition, a scan start frame, and an interleaving interval.

  The upper management entity of the base station schedules a scanning period and a start frame of the mobile station, and then transmits them to M_ScanScheduling. The response primitive is transmitted to the MAC layer of the base station [S66].

  The MAC layer of the base station transmits a MOB_SCN-RSP message to the mobile station and responds to the MOB_SCN-REQ message [S67].

  After receiving the MOB_NBR-RSP message from the base station, the MAC layer of the mobile station transmits it to the upper management entity of the mobile station using M_ScanScheduling. The data is transmitted using an indication primitive [S68]. The upper management entity of the mobile station instructs the MAC layer of the mobile station to perform scanning. A request primitive is transmitted [S69]. After the MAC layer of the mobile station performs scanning [S70], the result is sent to M_Scanning. The information is transmitted to the upper management entity of the mobile station using a confirmation primitive [S71]. The upper management entity of the mobile station sends M_ScanReport. A request primitive is transmitted [S72], and the base station is instructed to transmit a MOB_SCAN-REPORT message. The MAC layer of the mobile station transmits the MOB_SCAN-REPORT message to the base station [S73], and transmits it to the M_ScanReport. The information is transmitted to the upper management entity of the mobile station by a confirmation primitive [S74].

  As described with reference to FIG. 6 and FIG. 7, in order to perform scanning by the mobile station and a scanning request from the base station, a management SAP (M_SAP) and / or a control SAP (C_SAP) are used. The transmitted primitive will be described in detail.

(1) M_Neighbor. indication primitive 1) Function M_Neighbor. The indication is a primitive transmitted from the MAC layer of the mobile station to the upper management entity via the M-SAP in order to provide information on the neighboring base station received as the MAC management message.

2) Semantics M_Neighbor. indication
{
Source,
Destination,
Operator ID,
N_Neighbors
Neighbor BS-ID,
HO Process Optimization,
Available Radio Resource
}
The following table shows M_Neighbor. An example of the data format of an indication primitive is shown.

３）生成時点
Ｍ＿Ｎｅｉｇｈｂｏｒ．ｉｎｄｉｃａｔｉｏｎプリミティブは、移動局のＭＡＣ層が基地局からＭＯＢ＿ＮＢＲ−ＡＤＶメッセージを受信した後、メッセージに含まれている必須の情報を上位管理エンティティに伝達するために生成される。

3) Generation time M_Neighbor. The indication primitive is generated in order to transmit the essential information included in the message to the upper management entity after the MAC layer of the mobile station receives the MOB_NBR-ADV message from the base station.

4) Effect at the time of reception The upper management entity receives the M_Neighbor. An indication primitive is received to obtain information on neighboring base stations.

(2) M_ScanScheduling. request primitive 1) Function M_ScanScheduling. The request is a primitive for instructing the upper management entity to send an MBO_SCN-REQ message to the base station for the purpose of scanning to the MAC layer of the base station.

2) Semantics M_ScanScheduling. request
{
Source,
Destination,
Scan duration,
BS-ID
}
The following table shows M_ScanScheduling. An example of the data format of a request primitive is shown.

３）生成時点
Ｍ＿ＳｃａｎＳｃｈｅｄｕｌｉｎｇ．ｒｅｑｕｅｓｔプリミティブは、移動局の上位管理エンティティが移動局のＭＡＣ層にＭＯＢ＿ＳＣＮ−ＲＥＱメッセージを基地局に送信するように指示するために生成される。

3) Generation time M_ScanScheduling. The request primitive is generated to instruct the upper management entity of the mobile station to transmit the MOB_SCN-REQ message to the base station to the MAC layer of the mobile station.

4) Effect at the time of reception The MAC layer of the mobile station uses the M_ScanScheduling. After receiving the request primitive, a MOB_SCN-REQ message is transmitted to the base station.

(3) M_ScanScheduling. indication primitive 1) Function M_ScanScheduling. The indication is a primitive for transmitting the MOB_SCN-REQ message related information received from the mobile station by the MAC layer of the base station to the upper management entity of the base station.

2) Semantics M_ScanScheduling. indication
{
Source,
Destination,
MS MAC Address,
Scan duration
}
The following table shows M_ScanScheduling. An example of the data format of an indication primitive is shown.

３）生成時点
Ｍ＿ＳｃａｎＳｃｈｅｄｕｌｉｎｇ．ｉｎｄｉｃａｔｉｏｎプリミティブは、基地局のＭＡＣ層が移動局からＭＯＢ＿ＳＣＮ−ＲＥＱメッセージを受信した後、基地局の上位管理エンティティに該当情報を伝達するために生成される。

3) Generation time M_ScanScheduling. The indication primitive is generated in order to transmit the corresponding information to the upper management entity of the base station after the MAC layer of the base station receives the MOB_SCN-REQ message from the mobile station.

4) Effect upon reception The M_ScanScheduling. After receiving the indication primitive, it is determined whether to allow or reject the mobile station scanning request.

(4) M_ScanScheduling. response primitive 1) Function M_ScanScheduling. The response is a primitive for an upper management entity of the base station to transmit a result of the mobile station scanning request to the MAC layer of the base station.

2) Semantics M-Scan Scheduling. response
{
Source,
Destination,
MS MAC Address,
Scan duration,
Start frame
}
The following table shows M_ScanScheduling. An example of the data format of a response primitive is shown.

３）生成時点
Ｍ＿ＳｃａｎＳｃｈｅｄｕｌｉｎｇ．ｒｅｓｐｏｎｓｅプリミティブは、基地局の上位管理エンティティが移動局に対するスキャン要求の結果を決定した後、基地局のＭＡＣ層に該当情報を伝達するために生成される。

3) Generation time M_ScanScheduling. The response primitive is generated to transmit corresponding information to the MAC layer of the base station after the upper management entity of the base station determines the result of the scan request to the mobile station.

4) Effect at the time of reception The MAC layer of the base station transmits a MOB_SCN-RSP message to the mobile station after receiving this primitive.

(5) M_ScanScheduling. confirmation primitive 1) Function M_ScanScheduling. The confirmation is a primitive used to convey information related to the received message to the upper management entity of the mobile station after the mobile station MAC layer receives the MOB_SCN-REQ message.

2) Semantics M_ScanScheduling. confirmation
{
Source,
Destination,
Scan duration,
Start frame
}
The following table shows M_ScanScheduling. An example of the data format of confirmation primitive is shown.

３）生成時点
Ｍ＿ＳｃａｎＳｃｈｅｄｕｌｉｎｇ．ｃｏｎｆｉｒｍａｔｉｏｎプリミティブは、移動局のＭＡＣ層が基地局から応答として受信されたスキャン関連情報をＮＣＭＳ又は管理エンティティに伝達するために生成される。

3) Generation time M_ScanScheduling. The confirmation primitive is generated so that the MAC layer of the mobile station communicates the scan related information received as a response from the base station to the NCMS or the management entity.

4) Effect upon reception The upper management entity of the mobile station instructs the mobile station to perform scanning based on the information included in the transmitted primitive.

(6) M_Scanning. request primitive 1) Function M_Scanning. The request primitive is a primitive used by the upper management entity of the mobile station to instruct scanning to the MAC layer of the mobile station.

2) Semantics M_Scanning. request
{
Source,
Destination,
Scan duration
Link Quality Threshold
Link Status Report Period
}
The following table shows M_Scanning. An example of the data format of a request primitive is shown.

３）生成時点
Ｍ＿Ｓｃａｎｎｉｎｇ．ｒｅｑｕｅｓｔプリミティブは、移動局の上位管理エンティティが移動局のＭＡＣ層にスキャンを指示するために生成される。

3) Generation time M_Scanning. The request primitive is generated in order for the upper management entity of the mobile station to instruct scanning to the MAC layer of the mobile station.

4) Effect upon reception The MAC layer of the mobile station performs scanning after receiving this primitive.

(7) M_Scanning. confirmation primitive 1) Function M_Scanning. The confirmation is a primitive used to transmit the result of scanning performed by the MAC layer of the mobile station to the upper management entity of the mobile station. The scan result includes a broadcasted message such as DL_MAP, FCH, or Neighbor Advertisement, which allows the base station to support MIH and IS (Information Service). If it is determined whether or not it is supported, these pieces of information (MIH capability, whether or not IS is supported) are included. When a plurality of base stations are scanned and information about the plurality of base stations is transmitted, information related to the plurality of base stations is repeatedly transmitted in one message, or a plurality of messages (total number of scanned base stations) Can be transmitted.

2) Semantics M_Scanning. confirmation
{
Source,
Destination,
ResultCode,
BS ID,
MIH Capability,
Event Service Supported,
Command Service Supported,
IS Support,
CINR,
RSSI
}
The following table shows M_Scanning. An example of the data format of confirmation primitive is shown.

３）生成時点
Ｍ＿Ｓｃａｎｎｉｎｇ．ｃｏｎｆｉｒｍａｔｉｏｎプリミティブは、移動局により行われたスキャンの結果を移動局の上位管理エンティティに伝達するために生成される。

3) Generation time M_Scanning. The confirmation primitive is generated to convey the result of the scan performed by the mobile station to the upper management entity of the mobile station.

4) Effect at the time of reception After receiving this primitive, the upper management entity of the mobile station determines a handover to an available base station.

(8) M_ScanReport. request primitive 1) Function M_ScanReport. The request is a primitive used by the upper management entity of the mobile station to instruct the mobile station to report the scan result to the base station.

2) Semantics M_ScanReport. request
{
Source,
Destination
}
The following table shows M_ScanReport. An example of the data format of a request primitive is shown.

３）生成時点
Ｍ＿ＳｃａｎＲｅｐｏｒｔ．ｒｅｑｕｅｓｔは、ＭＯＢ＿ＳＣＡＮ−ＲＥＰＯＲＴメッセージを基地局に送信するように移動局の上位管理エンティティが移動局に指示するために生成される。

3) Generation time M_ScanReport. The request is generated in order for the upper management entity of the mobile station to instruct the mobile station to transmit the MOB_SCAN-REPORT message to the base station.

4) Effect upon reception The MAC layer of the mobile station is M_ScanReport. After receiving the request primitive, a MOB_SCAN-REPORT message is transmitted to the base station.

(9) M_ScanReport. confirmation primitive 1) Function M_ScanReport. The confirmation is a primitive used to notify the upper management entity of the mobile station of this fact after the mobile station MAC layer transmits MOB_SCAN-REPORT to the base station.

2) Semantics M_ScanReport. confirmation
{
Source,
Destination,
ResultCode
}
The following table shows M_ScanReport. An example of the data format of confirmation primitive is shown.

３）生成時点
Ｍ＿ＳｃａｎＲｅｐｏｒｔ．ｃｏｎｆｉｒｍａｔｉｏｎは、移動局のＭＡＣ層がスキャン結果を基地局に伝送した後、この事実を移動局の上位管理エンティティに報告するために生成されたプリミティブである。

3) Generation time M_ScanReport. The confirmation is a primitive generated to report the fact to the upper management entity of the mobile station after the MAC layer of the mobile station transmits the scan result to the base station.

4) Effect upon reception The upper management entity of the mobile station recognizes that the mobile station has completed the MOB_SCAN-REPORT message transmission.

  In order to implement the various features described above, the present invention can employ various types of hardware and / or software components (modules). For example, each hardware module includes various circuits and components necessary to perform the method steps. Also, each software module (performed by the processor and / or other hardware) contains various codes and protocols necessary to perform the method steps of the present invention.

  For scanning (from a MAC perspective), the present invention provides a method for performing scanning of a broadband wireless access system, the method receiving a first primitive indicating a scanning request from a network control management system (NCMS). And, after receiving the first primitive, performing scanning, and transmitting a second primitive including a base station identifier (BS-ID) and related to the performed scanning to the NCMS. Is done. The BS-ID indicates an identifier of the scanned base station. The scanning request includes a scanning period. The second primitive includes a scanning result. The result indicates whether there is a base station that transmits a radio signal. The result includes a signal strength value. The signal strength value includes at least one of CINR and RSSI. The result indicates whether the base station can support a media independent handover (MIH) function. The MIH function includes at least an MIH information service. The first and second primitives are transmitted through at least one of a management service access point (M-SAP) and a control service access point (C-SAP). The NCMS is a layer in an independent entity that is a management entity, and supports a management function of a mobile station. The BS-ID is a 48-bit long field that identifies a base station and is programmable, and the most significant 24 bits are used as an operator identifier.

  For neighbor indication (in terms of MS MAC), the method includes receiving a neighbor advertisement message from a base station media access control (MAC) layer, operator ID, current BS MIH capability, current BS information service. Neighbor indication including at least one of the following parameters: (IS) support, number of neighbors, neighbor BS ID, neighbor BS MIH capability, neighbor BS IS support, HO process optimization, available radio resources, and MIH information bitmap. Transmitting a primitive related to the to the NCMS. The MIH information bitmap includes heterogeneous network information. The heterogeneous network information indicates whether the heterogeneous network can perform MIH.

  For scanning (in terms of MIH), the present invention provides a method for performing scanning of a broadband wireless access system, the method transmitting a first primitive indicating a scanning request to a network control management system (NCMS). And receiving from the NCMS a second primitive that includes a base station identifier (BS-ID) and is associated with scanning execution. The BS-ID indicates an identifier of the scanned base station. The scanning request includes a scanning period. The second primitive includes a scanning result. The result indicates whether there is a base station that transmits a radio signal. The result includes a signal strength value. The signal strength value includes at least one of CINR and RSSI. The result indicates whether the base station can support a media independent handover (MIH) function. The MIH function includes at least an MIH information service. The first and second primitives are transmitted through at least one of a management service access point (M-SAP) and a control service access point (C-SAP). The NCMS is a layer in an independent entity of the management entity and supports the management function of the mobile station. The BS-ID is a 48-bit long field that identifies a base station and is programmable, and the most significant 24 bits are used as an operator identifier.

  For neighbor indication (in terms of MIH), the method includes the operator ID from the NCMS that has received the primitive for neighbor indication from the media access control (MAC) layer of the mobile station that has received the neighbor advertisement message from the base station. , Current BS MIH capability, current BS information service (IS) support, number of neighbors, neighbor BS ID, neighbor BS MIH capability, neighbor BS ISH support, HO process optimization, available radio resources, and MIH information bits The method further includes receiving a primitive associated with the neighbor indication including at least one of the parameters comprising the map. The MIH information bitmap includes heterogeneous network information. The heterogeneous network information indicates whether the heterogeneous network can perform MIH. The method further includes setting an integrated interface for an upper layer of the mobile station to manage messages transmitted to and received from at least one of the same type network and the different type network.

  For scan scheduling (in terms of MS MAC), the present invention provides a scan scheduling method for a broadband radio access system, which includes a first indicating a scan scheduling request from a network control management system (NCMS). Receiving a primitive, transmitting a scanning request including scan scheduling information to a base station media access control (MAC) layer, receiving a scanning response from the MAC layer of the base station, and performing the scan scheduling Transmitting a second primitive indicating the result to the NCMS. The scan scheduling of the first primitive includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval. The scan scheduling of the second primitive includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval.

  For neighbor indication (in terms of MS MAC), the method is from a mobile station NCMS that has received a primitive for neighbor indication from a media access control (MAC) layer of a mobile station that has received a neighbor advertisement message from a base station. , Operator ID, current BS MIH capability, current BS information service (IS) support, number of neighbors, neighbor BS ID, neighbor BS MIH capability, neighbor BS IS support, HO process optimization, available radio resources, and The method further includes receiving a primitive associated with the neighbor indication including at least one of the parameters comprising the MIH information bitmap. The MIH information bitmap includes heterogeneous network information. The heterogeneous network information indicates whether the heterogeneous network can perform MIH.

  For scan scheduling (in terms of BS MAC), the present invention provides a scan scheduling method for a broadband radio access system, which scan scan information is received from a media access control (MAC) layer of a mobile station. Receiving a scanning request including, transmitting a first primitive indicating the received scan scheduling request to a network control management system (NCMS) of the base station, and transmitting a second primitive indicating the performed scan scheduling to the base station Receiving from the NCMS of the station, and transmitting a scanning response to the MAC layer of the mobile station. The scan scheduling of the first primitive includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval. The scan scheduling of the second primitive includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval.

  For neighbor indication (in terms of BS MAC), the method is that the MS MAC layer has an MS MCNS operator ID, current BS MIH capability, current BS information service (IS) support, number of neighbors, neighbor BS To be able to transmit primitives related to neighbor indications including at least one of the following parameters: ID, neighbor BS MIH capability, neighbor BS IS support, HO process optimization, available radio resources, and MIH information bitmap. The method further includes transmitting a neighbor advertisement message to a media access control (MAC) layer of the mobile station. The MIH information bitmap includes heterogeneous network information. The heterogeneous network information indicates whether the heterogeneous network can perform MIH.

  For scan scheduling (in terms of MIH), the present invention provides a scan scheduling method for a broadband radio access system, the method transmitting a first primitive indicating a scan scheduling request to NCMS; Receiving a second primitive indicating a scan scheduling execution result from the NCMS. The scan scheduling includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval. The first primitive and the second primitive are transmitted and received through at least one of a management service access point (M-SAP) and a control service access point (C-SAP).

  For neighbor indication (in terms of MIH), the method includes an operator from the NCMS that has received a primitive for neighbor indication from a media access control (MAC) layer of a mobile station that has received a neighbor advertisement message from a base station. ID, current BS MIH capability, current BS information service (IS) support, number of neighbors, neighbor BS ID, neighbor BS MIH capability, neighbor BS IS support, HO process optimization, available radio resources, and MIH information The method further includes receiving a primitive associated with the neighbor indication including at least one of the parameters comprising the bitmap. The MIH information bitmap includes heterogeneous network information. The heterogeneous network information indicates whether the heterogeneous network can perform MIH. The method further includes setting an integrated interface for an upper layer of the base station to manage messages transmitted to and received from at least one of the same type network and the different type network.

  For scan reporting (in terms of MS MAC), the present invention provides a scan schedule reporting method for a broadband wireless access system, the method comprising performing a scanning procedure, and a network control management system for a mobile station Receiving a first primitive indicating a scan report request from (NCMS), transmitting a scan report to the base station, and a second primitive indicating a scan report confirmation including a transmission result of the scan report to the base station And transmitting to the NCMS of the mobile station. The result indicates whether there is a base station that transmits a radio signal. The result includes a signal strength value. The signal strength value includes at least one of CINR and RSSI. The result indicates whether the base station can support a media independent handover (MIH) function. The MIH function includes at least an MIH information service.

  For scan reporting (from the MIH perspective), the present invention provides a scan reporting method for a broadband wireless access system, which method sends a first primitive indicating a scan report request to a network control management system (NCMS). And transmitting from the NCMS a second primitive indicating a scan report confirmation including a transmission result of the scan report to the base station. The result indicates whether there is a base station that transmits a radio signal. The result includes a signal strength value. The signal strength value includes at least one of CINR and RSSI. The result indicates whether the base station can support a media independent handover (MIH) function. The MIH function includes at least an MIH information service. The first and second primitives are transmitted via at least one of a management service access point (M-SAP) and a control service access point (C-SAP). The method further includes setting an integrated interface for an upper layer of the mobile station to manage messages transmitted to and received from at least one of the same type network and the different type network.

  For the SAP, the present invention includes a protocol stack including a data and control plane and a management plane, a network control management system (NCMS) communicating with the protocol stack, and a primitive located between the protocol stack and the NCMS. Management service access point (M-SAP) and control service access point (C-SAP), and an MIH service access point having one or more primitives located on the protocol stack and NCMS A protocol architecture for a broadband wireless access system composed of a Media Independent Handover (MIH) layer to be transmitted / received therebetween.

  For the primitives stored in the MS, the present invention provides a protocol stack including data and control planes and a management plane, a network control management system (NCMS) communicating with the protocol, and between the protocol stack and the NCMS. A memory storing a plurality of primitives defined to convey information related to a scanning execution method of a broadband wireless access system, and using the primitives in conjunction with the protocol stack, the NCMS, and the memory A mobile station comprising a processor for performing a scanning execution method of a broadband wireless access system is provided. The mobile station is located on the protocol stack and the NCMS, and the primitive is a media independent handover between the upper management entity and the protocol stack, or between the upper management entity and the NCMS, or between the upper management entity and the protocol stack and the NCMS. It further includes a superordinate management entity that allows it to be defined to communicate information related to the provision.

  For the primitives stored in the BS, the present invention provides a protocol stack consisting of a data and control plane and a management plane, a network control management system (NCMS) communicating with the protocol stack, and between the protocol stack and the NCMS. A plurality of primitives defined to transmit information related to a scanning execution method of the broadband wireless access system, and the protocol stack, the NCMS, and the primitives in conjunction with the memory. And a processor that performs a scanning execution method for a broadband wireless access system. The base station is located on the protocol stack and the NCMS, and the primitive is a media independent handover between the upper management entity and the protocol stack, or between the upper management entity and the NCMS, or between the upper management entity and the protocol stack and the NCMS. It further includes a superordinate management entity that allows it to be defined to communicate information related to the provision.

  This specification presents various embodiments of the present invention. The scope of the claims includes various variations and equivalent modifications of the embodiments described herein. Accordingly, the claims should be construed broadly to include modifications, equivalent structures and features within the spirit and scope of the invention as described herein.

The drawings, which are included to facilitate understanding of the invention and constitute a part of this specification, illustrate various embodiments of the invention and together with the description serve to explain the principles of the invention.
It is a figure which shows an example of the protocol hierarchy architecture of a wideband radio | wireless access system. It is a figure which shows the procedure of the adjacent base station information search and broadcast in the broadband wireless access system by a prior art. It is a figure which shows an example of the protocol architecture model in consideration of media independent handover (MIH). FIG. 3 is a diagram illustrating a principle on which a primitive according to the present invention operates. FIG. 3 is a diagram illustrating a principle on which a primitive according to the present invention operates. It is a flowchart which shows one preferable embodiment of this invention. It is a flowchart which shows other preferable embodiment of this invention.

Claims (69)

Receiving a first primitive indicating a scanning request from a network control management system (NCMS);
Scanning after receiving the first primitive;
A method for performing scanning of a broadband wireless access system, comprising: transmitting a second primitive related to the performed scanning to the NCMS, including a base station identifier (BS-ID).   The method of claim 1, wherein the BS-ID indicates an identifier of a scanned base station.   The method of claim 1, wherein the scanning request includes a scanning period.   The method of claim 1, wherein the second primitive includes a scanning result.   The method of claim 4, wherein the result indicates whether there is a base station that transmits a radio signal.   The method of claim 4, wherein the result includes a signal strength value.   The method of claim 6, wherein the signal strength value includes at least one of CINR and RSSI.   The method of claim 4, wherein the result indicates whether the base station can support a Media Independent Handover (MIH) function.   The method of claim 8, wherein the MIH function includes at least an MIH information service.   The first and second primitives are transmitted through at least one of a management service access point (M-SAP) and a control service access point (C-SAP). A method for performing scanning of a broadband wireless access system.   The method of claim 1, wherein the NCMS is a layer in an independent entity that is a management entity and supports a management function of a mobile station.   2. The broadband wireless access system according to claim 1, wherein the BS-ID is a 48-bit long field for identifying a base station and is programmable, and the most significant 24 bits are used as an operator identifier. Scanning execution method. Receiving a neighbor advertisement message from a base station media access control (MAC) layer;
Operator ID, current BS MIH capability, current BS information service (IS) support, number of neighbors, neighbor BS ID, neighbor BS MIH capability, neighbor BS ISH support, HO process optimization, available radio resources, and MIH The method of claim 1, further comprising: transmitting a primitive related to a neighbor indication including at least one of parameters including an information bitmap to the NCMS.   The method of claim 13, wherein the MIH information bitmap includes heterogeneous network information.   The method of claim 14, wherein the heterogeneous network information indicates whether the heterogeneous network can perform MIH. Transmitting a first primitive indicating a scanning request to a network control management system (NCMS);
A method for performing scanning of a broadband wireless access system, comprising: receiving from the NCMS a second primitive related to scanning execution, including a base station identifier (BS-ID).   The method of claim 16, wherein the BS-ID indicates an identifier of a scanned base station.   The method of claim 16, wherein the scanning request includes a scanning period.   The method of claim 16, wherein the second primitive includes a scanning result.   The method of claim 19, wherein the result indicates whether there is a base station that transmits a radio signal.   The method of claim 19, wherein the result includes a signal strength value.   The method of claim 21, wherein the signal strength value includes at least one of CINR and RSSI.   The method of claim 19, wherein the result indicates whether the base station can support a media independent handover (MIH) function.   The method of claim 23, wherein the MIH function includes at least an MIH information service.   The method of claim 16, wherein the first primitive and the second primitive are transmitted through at least one of a management service access point (M-SAP) and a control service access point (C-SAP). A method for performing scanning of a broadband wireless access system.   The method of claim 16, wherein the NCMS is a layer in an independent entity of a management entity and supports a management function of a mobile station.   17. The broadband wireless access system according to claim 16, wherein the BS-ID is a 48-bit long field that identifies a base station and is programmable, and the most significant 24 bits are used as an operator identifier. Scanning execution method.   The operator ID, the current BS MIH capability, the current BS information service (IS) support from the NCMS that has received the primitive for the neighbor indication from the media access control (MAC) layer of the mobile station that has received the neighbor advertisement message from the base station Primitives related to neighbor indications including at least one of the following parameters: neighbor number, neighbor BS ID, neighbor BS MIH capability, neighbor BS IS support, HO process optimization, available radio resources, and MIH information bitmap The method according to claim 16, further comprising: receiving a message.   The method of claim 28, wherein the MIH information bitmap includes heterogeneous network information.   30. The method of claim 29, wherein the heterogeneous network information indicates whether or not the heterogeneous network is capable of MIH.   The broadband wireless access according to claim 16, further comprising setting an integrated interface for an upper layer of the mobile station to manage messages transmitted to and received from at least one of the same type network and a different type network. How to scan the system. Receiving a first primitive indicating a scan scheduling request from a network control management system (NCMS);
Transmitting a scanning request including scan scheduling information to a base station media access control (MAC) layer;
Receiving a scanning response from the MAC layer of the base station;
Transmitting a second primitive indicating an execution result of the scan scheduling to the NCMS. A scan scheduling method for a broadband wireless access system, comprising:   The scan scheduling method for the broadband wireless access system of claim 32, wherein the scan scheduling of the first primitive includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval. .   The scan scheduling method for the broadband wireless access system of claim 32, wherein the scan scheduling of the second primitive includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval. .   The mobile station NCMS that has received the primitive for the neighbor indication from the media access control (MAC) layer of the mobile station that has received the neighbor advertisement message from the base station, the operator ID, the current BS MIH capability, the current BS information service (IS Related to neighbor indication including at least one of the following parameters: support, number of neighbors, neighbor BS ID, neighbor BS MIH capability, neighbor BS IS support, HO process optimization, available radio resources, and MIH information bitmap The method of claim 32, further comprising receiving a received primitive.   The method of claim 35, wherein the MIH information bitmap includes heterogeneous network information.   The method of claim 36, wherein the heterogeneous network information indicates whether the heterogeneous network is capable of MIH. Receiving a scanning request including scan scheduling information from a media access control (MAC) layer of a mobile station;
Transmitting a first primitive indicating a received scan scheduling request to a network control management system (NCMS) of a base station;
Receiving a second primitive from the NCMS of the base station indicating a scan scheduling performed;
Transmitting a scanning response to the MAC layer of the mobile station. A scan scheduling method for a broadband wireless access system, comprising:   The scan scheduling method for the broadband wireless access system of claim 38, wherein the scan scheduling of the first primitive includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval. .   The scan scheduling method for the broadband wireless access system of claim 38, wherein the scan scheduling of the second primitive includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval. .   The MS MAC layer has an operator ID, current BS MIH capability, current BS information service (IS) support, MS neighbor number, neighbor BS ID, neighbor BS MIH capability, neighbor BS ISH support, HO process optimization, In order to be able to transmit primitives related to neighbor indications including available radio resources and at least one of the parameters consisting of an MIH information bitmap, a neighbor advertisement message is sent to the mobile station's Media Access Control (MAC) layer. The scan scheduling method for the broadband wireless access system of claim 38, further comprising transmitting.   The method of claim 41, wherein the MIH information bitmap includes heterogeneous network information.   The method of claim 42, wherein the heterogeneous network information indicates whether the heterogeneous network is capable of MIH. Transmitting a first primitive indicating a scan scheduling request to the NCMS;
Receiving a second primitive indicating an execution result of scan scheduling from the NCMS; and a scan scheduling method for a broadband wireless access system.   45. The scan scheduling method for the broadband wireless access system of claim 44, wherein the scan scheduling includes at least one of a scan period, a scan repetition, a scan start frame, and an interleaving interval.   45. The method of claim 44, wherein the first and second primitives are transmitted and received via at least one of a management service access point (M-SAP) and a control service access point (C-SAP). A scan scheduling method for a broadband wireless access system.   From the NCMS that has received the primitive for the neighbor indication from the media access control (MAC) layer of the mobile station that has received the neighbor advertisement message from the base station, the operator ID, the current BS MIH capability, the current BS information service (IS) Related to neighbor indications including at least one of the following parameters: support, number of neighbors, neighbor BS ID, neighbor BS MIH capability, neighbor BS IS support, HO process optimization, available radio resources, and MIH information bitmap 45. The scan scheduling method for the broadband wireless access system of claim 44, further comprising receiving a primitive.   48. The scan scheduling method for the broadband wireless access system of claim 47, wherein the MIH information bitmap includes heterogeneous network information.   The method of claim 48, wherein the heterogeneous network information indicates whether the heterogeneous network is capable of MIH.   45. The broadband wireless access of claim 44, further comprising setting an integrated interface for an upper layer of the base station to manage messages transmitted to and received from at least one of the same type network and a different type network. Scan scheduling method for the system. Performing the scanning procedure;
Receiving a first primitive indicating a scan report request from a network control management system (NCMS) of a mobile station;
Transmitting a scan report to the base station;
Transmitting a second primitive indicating a scan report confirmation including a transmission result of the scan report to the base station to the NCMS of the mobile station. A scan report method for a broadband wireless access system, comprising:   The method of claim 51, wherein the result indicates whether there is a base station transmitting a radio signal.   The method of claim 51, wherein the result includes a signal strength value.   The method of claim 53, wherein the signal strength value includes at least one of CINR and RSSI.   The method of claim 51, wherein the result indicates whether the base station can support a media independent handover (MIH) function.   The method of claim 55, wherein the MIH function includes at least an MIH information service. Transmitting a first primitive indicating a scan report request to a network control management system (NCMS);
Receiving a second primitive indicating a scan report confirmation including a result of transmission of the scan report to a base station from the NCMS. A scan report method for a broadband wireless access system, comprising:   The method of claim 57, wherein the result indicates whether there is a base station transmitting a radio signal.   58. The scan report method for the broadband wireless access system of claim 57, wherein the result includes a signal strength value.   The method of claim 59, wherein the signal strength value includes at least one of CINR and RSSI.   The method of claim 57, wherein the result indicates whether the base station can support a media independent handover (MIH) function.   The method of claim 61, wherein the MIH function includes at least an MIH information service.   58. The broadband of claim 57, wherein the first primitive and the second primitive are transmitted through at least one of a management service access point (M-SAP) and a control service access point (C-SAP). Scan reporting method for wireless access system.   58. The broadband wireless access of claim 57, further comprising setting an integrated interface for an upper layer of the mobile station to manage messages transmitted to and received from at least one of the same type network and a different type network. Scan reporting method for the system. A protocol stack including data and control plane and management plane;
A network control management system (NCMS) in communication with the protocol stack;
A management service access point (M-SAP) and a control service access point (C-SAP) that are located between the protocol stack and the NCMS and allow primitives to be transmitted and received between them;
A broadband comprising the protocol stack and a media independent handover (MIH) layer positioned on the NCMS to allow primitives to be transmitted and received between them via one or more MIH service access points Protocol architecture for a radio access system. A protocol stack including data and control plane and management plane;
A network control management system (NCMS) in communication with the protocol;
A memory storing a plurality of primitives defined to convey information related to a scanning execution method of a broadband wireless access system between the protocol stack and the NCMS;
A mobile station comprising: the protocol stack, the NCMS, and a processor that performs a scanning execution method of a broadband wireless access system using the primitive in conjunction with the memory.   Information related to providing a media independent handover between the upper management entity and the protocol stack, or between the upper management entity and the NCMS, or between the upper management entity and the protocol stack and the NCMS, located on the protocol stack and the NCMS. The mobile station according to claim 66, further comprising a higher-level management entity that enables to be defined to communicate. Protocol stack consisting of data and control plane and management plane;
A network control management system (NCMS) in communication with the protocol stack;
A memory storing a plurality of primitives defined to convey information related to a scanning execution method of a broadband wireless access system between the protocol stack and the NCMS;
A base station comprising: the protocol stack, the NCMS, and a processor that performs a scanning execution method of a broadband wireless access system using the primitive in conjunction with the memory.   Information related to providing a media independent handover between the upper management entity and the protocol stack, or between the upper management entity and the NCMS, or between the upper management entity and the protocol stack and the NCMS, located on the protocol stack and the NCMS. 69. The base station of claim 68, further comprising an upper management entity that enables definition to communicate.

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