CN101080883B - Method of executing handover in broadband wireless access system - Google Patents
Method of executing handover in broadband wireless access system Download PDFInfo
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- CN101080883B CN101080883B CN2006800013804A CN200680001380A CN101080883B CN 101080883 B CN101080883 B CN 101080883B CN 2006800013804 A CN2006800013804 A CN 2006800013804A CN 200680001380 A CN200680001380 A CN 200680001380A CN 101080883 B CN101080883 B CN 101080883B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/04—Reselecting a cell layer in multi-layered cells
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
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Abstract
The primitives between an upper management layer and the MAC layer within a mobile station and a base station are defined in order to specify and clarify the operations within the protocol stack layers in a broadband wireless access system to allow a mobile station to execute handover. Media Independent Handover (MIH) procedures can be achieved because the NCMS and MIH layer can communicate through use of these primitives.
Description
Technical field
To the present invention relates to BWA, and to relate more specifically to carry out effective handover in order allowing, and clearly define the primitive that is used at the protocol stack of mobile radio station and the protocol stack in the base station.
Background technology
System about the IEEE 802.16e that stands International standardization of BWA, do not have such as the layered architecture that is formed by HLR (attaching position register), VLR (Visited Location Registor), MSC (mobile switching centre), BSC (base station controller), RNC (radio network controller) etc. in existing 2G and 3G mobile communication, but only formed by MSS (mobile subscriber station), BS (base station) and ASA (authentication service mandate).
This BWA has defined the agreement of MAC public between base station and mobile radio station (MSS) (media interviews control) layer and PHY (physics) layer.Fig. 1 has described to be used for the example protocol layer architecture of BWA.
Execution is as follows to the process of the prior art of the handover of the portable terminal of another base station from a base station:
1) residential quarter is selected
Mobile radio station can by use neighbor base stations notice message (for example MOB_NBR-ADV) or by obtain the information about neighbor base stations with scanning, this neighbor base stations notice message be broadcasted by serving BS.
2) handover determines and starts
Can start by mobile radio station or by Current Serving BTS and carry out mobile radio station to the decision of the handover of another base station.
3) target BS scanning
Mobile radio station should be carried out scanning at target BS, with obtain down link and uplink channel and theirs synchronously.
4) network reenters
Mobile radio station and target BS should be carried out range finding (ranging) and reenter with the network that allows mobile radio station
5) termination of service
After having carried out the handover of another base station, mobile radio station finishes and before all services of base station.
In the prior art, the message about handover will be explained as follows:
1) MOB_MSHO-REQ message
In order to ask handover, mobile radio station sends MOB_MSHO-REQ message to the base station.This MOB_MSHO-REQ message comprises the ID of the target BS that is used for handover of being recommended by mobile radio station, preamble index value, CINR value, HO-ID etc.
2) MOB_BSHO-RSP message
In the situation that receive MOB_MSHO-REQ message, the base station send MOB_BSHO-RSP message to mobile radio station as response.
3) MOB_BSHO-REQ message
This is the message that sends to mobile radio station by the base station of this mobile radio station of current service, with the handover of request to another base station.This MOB_BSHO-REQ message can comprise the information about the neighbor base stations of having been recommended by the base station.
4) MOB_HO-IND message
After receiving MOB_BSHO-RSP message or MOB_BSHO-REQ message, and after having determined finally to carry out the target BS of handover to it, mobile radio station release is connected with Current Serving BTS, and sends this MOB_HO-IND message when handover will be about to carry out to another base station.
Fig. 2 has described the process that is used for carrying out in BWA handover according to prior art.
(1) mobile radio station obtains the relevant information of neighbor base stations by scheduling process and neighbor base stations broadcast.
(2) mobile radio station will arrive Current Serving BTS for the transmission of messages of request handover.Here, based on the information that obtains by scanning process the base station of recommending is included in the transmission.
(3) after receiving this request message, Current Serving BTS is transferred to the pre-notification message of handover (HO-pre-notification) recommends base station, the pre-notification message of this handover to comprise such as moving station mark, require the value of bandwidth, connectivity parameter etc.
(4) as response, recommend the base station to send the pre-push-notification-answer message of handover (HO-pre-notification-rsp).
(5) after checking this response message of recommending the base station, Current Serving BTS determines to be applicable to the target BS of mobile radio station, and sends handover confirm message (HO-confirm) and send handover response message (MOB-HO-RSP) to mobile radio station.
(6) mobile radio station finally sends MOB_HO-indication message and be used for to carry out handover to the base station.
(7) mobile radio station is carried out with handover and will be carried out the range finding of its base station.
Summary of the invention
Such as front explanation, in the prior art, definition utilizes message base-station transmission and reception and made to carry out scanning by mobile radio station, but does not define the operation that in fact relates to scanning for the protocol stack in mobile radio station (layer) and the protocol stack in the base station (layer).Namely, do not have respectively in the protocol stack of mobile radio station and base station for the definition about the primitive of the information between MAC layer and upper management entity, transmitted via NCMS (network control management system).
One aspect of the present invention comprise the inventor for as the understanding of the shortcoming of the prior art of front explanation.In order to address these problems, the invention provides the method that is defined in the primitive between upper management layer and the MAC layer, specifying and to be illustrated in the operation in the protocol stack layers in the BWA, thereby allow mobile radio station to carry out handover.
For realizing purpose of the present invention, a kind of execution is comprised by the method for the handover of mobile radio station startup: receive the first primitive from mobile radio station (MS) network control management system (NCMS), this first primitive indication hand-off request; Handoff request message is sent to network; Receive handover response message from network; And sending the second primitive to MS NCMS, this second primitive indication handover is confirmed.
According to another aspect of the present invention, a kind of method of carrying out the handover that is started by mobile radio station (MS) comprises: receive handoff request message from mobile radio station (MS) media access controls (MAC) layer; Send the first primitive to network N CMS (network control management system), this first primitive indication handover is carried out indication; Receive the second primitive from network N CMS, this second primitive indication handover is carried out response; And send handover response message to the MSMAC layer.
According to another aspect of the present invention, a kind of method of carrying out by the handover of network startup comprises: receive the first primitive from network N CMS (network control management system), this first primitive indication hand-off request; And sending the second primitive to network N CMS, this second primitive indication handover is confirmed.
Description of drawings
Be included to provide accompanying drawing for the understanding of the present invention, comprise in this application and consist of its part, described embodiments of the invention, and be used for together with the description explaining principle of the present invention.In the drawings:
Fig. 1 has described to be used for the example protocol layer architecture of BWA.
Fig. 2 has described the process that is used for carrying out in BWA handover according to prior art.
Fig. 3 has described to consider the example protocol architectural model of media independence handover (MIH).
Figure 4 and 5 have been described the principle of how to work according to primitive of the present invention.
Fig. 6 has described the flow chart of exemplary embodiment of the present invention.
Fig. 7 has described the flow chart of another exemplary embodiment of the present invention.
Embodiment
The present invention is described as be in the BWA of 802.16e network for example and carries out.Yet, the present invention can also change and carry out in the lower communication system of working of the communication specification (such as 802.16g, 802.21,802.11u etc.) of other types, because concept of the present invention and instruction can be applied to multiple communication plan, this multiple communication plan is worked in a similar manner based on current techique.Non-restrictive illustrative embodiment of the present invention will explained below with reference to accompanying drawing.
And, some aspect of the present invention is described with reference to the specific names of entity, interface, primitive, message etc., but those skilled in the art will know and know, these titles are nonrestrictive, because other titles (label, term etc.) also can be used, as long as their function is instructed corresponding to the present invention.
The invention provides a kind of method, it allows management or the control of entity executive system (mobile radio station or base station), to come managing MAC layer and PHY layer (physical layer) by utilizing NCMS (network control management system) from the MAC layer primitive to be transferred to required upper management entity.Especially, when mobile radio station is carried out scanning, provide a kind of method, it defines primitive in the protocol stack of mobile radio station and base station, and this primitive need to transmit between MAC layer and upper management entity via NCMS.
After this, management entity represents the entity that all are connected with the NCMS interface, and can be any IP layer in the equipment or logic manage entity or physical management entity on its upper strata of being present in.Work of the present invention seems just as NCMS directly sends (transmission) primitive because via NCMS from the upper management entity to management SAP (M-SAP) or control SAP (C-SAP) executive communication.
Upper management entity used in this invention can be located on the layer management entity in the protocol stack, as shown in fig. 1, and can be divided into physics or logic manage entity, and its management SAP by NCMS or layer management entity communicates by letter.The upper management entity may reside in the particular protocol stack, or can be used as separately or independently system or stack exist, but at the conceptive upper management entity that is expressed as.
Fig. 3 has described to consider the example protocol architectural model of media independence handover (MIH).
Primitive provided by the present invention is transmitted (transmission) to NCMS (network control and management system) via management SAP (M-SAP) or control SAP (C-SAP), and NCMS can transmit (transmission) to the desired location that comprises the upper management entity with this primitive.
M-SAP can have for the executive system configuration, for monitoring statistics (statistics) and for the function of notifying/triggering etc., still not only being confined to these functions.C-SAP can have for carrying out handover (such as from the notice of the HO request of MS etc.), be used for idle mode mobility (mobility) management (such as moving into idle pulley), be used for user and session management (setting up such as mobile queued session), be used for the function of RRM etc., but is not limited to only these functions.Although can distinguish primitive of the present invention according to the function of above-mentioned they, can transmit these primitive by M-SAP and/or C-SAP.
Fig. 4 and Fig. 5 have described the principle that how primitive works according to the present invention.Figure 4 illustrates need to the primitive of remote entity collaborative work, and figure 5 illustrates the primitive that only in local stack, transmits.
As shown in Figure 4, when with the remote entity collaborative work, carry out a pair of operation that comprises request and confirm or comprise response and indication.
As shown in fig. 5, when in operating in local stack, occuring, have two kinds of situations: intercoursing between management entity and NCMS (namely bidirectional operation) or one-way operation.For bidirectional operation, be called as request by M-SAP/C-SAP to the transmission of NCMS from management entity, and the response that it is transmitted is called as indication.For one-way operation, be called as request by M-SAP/C-SAP to the transmission of NCMS from management entity, and one direction transmission in the opposite direction is called as indication.
Can be used for multi-mode mobile station according to primitive of the present invention, wherein pattern corresponding to management entity indication or when this associative mode transmission of information is to all multimodal entities of management.Under such situation, can there be two kinds of following situations.
At first, when primitive is delivered to lower floor from MIH layer or MIH function, MIH (layer or function) can explain the information (for example order) that receives from the upper strata when transmitting corresponding primitive, or can shine upon upper layer information (order) and emission with order of the present invention.
Second, when primitive is delivered to MIH layer or MIH function from lower floor, MIH (layer or function) can explain the primitive that receives from lower floor when transmission will be delivered to the primitive (the unified primitive that namely limits at the MIH place) of the correspondence on upper strata, or the primitive of lower floor can be shone upon similarly with the primitive that will send to the upper strata and then emission.
When being used in the media independence handover (MIH), can by by transmitting at the SAP between NCMS and the MIH or the SAP between management entity and MIH, make it possible to realize the MIH technology by the primitive of the present invention's definition.
A kind of method of carrying out handover in BWA comprises: by the handoff request message of mobile radio station MAC layer reception from serving BS; To be included in from the information in the handoff request message of serving BS by the first primitive by mobile radio station MAC layer and be delivered to the upper management entity; Come mobile radio station MAC layer is responded by transmitting the second primitive by the upper management entity; And send handoff request message to serving BS by mobile radio station MAC layer, and the handover of carrying out target BS.
A kind of method of carrying out handover in BWA comprises: by transmitting the 3rd primitive to the upper management entity by serving BS MAC layer, notify mobile radio station to be handed over to another base station; By transmitting the 4th primitive to mobile radio station MAC layer by mobile radio station upper management layer, indicate mobile radio station will utilize target BS to carry out network and reenter process; Send RNG-REG message to target BS by mobile radio station MAC layer; After receiving RNG-REG message, target BS MAC layer is by sending the Wuyuan language, the information in the RNG-REG message of being included in is delivered to the upper management entity of target BS; Upper management entity by target BS responds by transmitting the 6th primitive; Send RNG-RSP message to mobile radio station MAC layer by target BS, and after receiving this RNG-RSP message, mobile radio station MAC layer is delivered to mobile radio station upper management entity via the 7th primitive with the information that is included in this RNG-RSP message.
For allow mobile radio station by with utilize the base station sending and receiving to MAC message carry out handover, with reference to Fig. 6 and 7, describe and explain the operation of between upper management entity and MAC layer, carrying out via the NCMS in mobile radio station and base station
Fig. 6 has described the flow chart of exemplary embodiment of the present invention, and wherein mobile radio station is asked the handover of base station by MOB_MSHO-REQ.
Mobile radio station upper management entity sends M_MACHandover.request to mobile radio station MAC layer [S51] by NCMS, and indication mobile radio station MAC layer sends MOB_MSHO-REQ message to serving BS (BS1) MAC layer.Then mobile radio station MAC layer sends MOB_MSHO-REQ message to serving BS (BS1) MAC layer [S52].
Serving BS MAC layer is notified its upper management entity [S53] by transmitting M_MACHandover.indication primitive with the mobile radio station hand-off request.Serving BS upper management entity is delivered to its MAC layer with M_MACHandover.response primitive, with the result [S54] of notice mobile radio station hand-off request.Serving BS MAC layer sends to mobile radio station MAC layer [S55] with MOB_BSHO-RSP message.
Mobile radio station MAC layer is delivered to its upper management entity with M_MACHandover.confirmation primitive, with notice hand-off request result [S56].After determining to carry out the final goal base station of handover to it, mobile radio station upper management entity is delivered to its MAC layer to notify this situation [S57] with M_HOIND.request primitive.Mobile radio station MAC layer sends to serving BS [S58] with MOB_HO-IND message, and carries out the handover of target BS (BS2).
Mobile radio station MAC layer is delivered to mobile radio station upper management entity with M_HOIND.confirmation primitive, to notify mobile radio station upper management entity [S59] with MOB_HO-ING transmission of messages result.Mobile radio station upper management entity sends M_Ranging.request primitive to its MAC layer [S60], and the network that should carry out about target BS with the indication mobile radio station reenters process.
Mobile radio station MAC layer sends RNG-REQ message to target BS [S61].After receiving this RNG-REQ message, target BS MAC layer is delivered to its upper management entity [S62] by the information that M_Ranging.indication primitive will be included in the RNG-REQ message.Upper management entity in base station comes it is responded [S63] by sending M_Ranging.response primitive.Target BS sends RNG-RSP message to mobile radio station MAC layer [S64].After receiving this RNG-RSP message, mobile radio station MAC layer is delivered to its upper management entity [S65] by M_Ranging.confirmation primitive with the information that is included in the RNG-RSP message.
Fig. 7 has described the flow chart of another exemplary embodiment of the present invention, and wherein the handover of mobile radio station is asked in the base station by MOB_BSHO-REQ message.
Serving BS (BS1) upper management entity is delivered to its MAC layer [S71] with M_MACHandover.request primitive, and indicates its MAC layer to send handoff request message to mobile radio station.Serving BS MAC layer sends MOB_BSHO-REQ message to mobile radio station [S72].Mobile radio station MAC layer is delivered to its upper management entity [S73] via M_MACHandover.indication primitive with the serving BS handoff request message.Mobile radio station upper management entity is delivered to its MAC layer to respond [S74] with M_MACHandover.response primitive.Mobile radio station MAC layer sends MOB_HO-IND message to serving BS [S75], and the handover of carrying out target BS (BS2).
Serving BS MAC layer is delivered to its upper management entity [S76] with M_MACHandover.confirmation primitive, is given another base station by handover to notify this mobile radio station.
Mobile radio station upper management entity transmits M-Ranging.request primitive to its MAC layer, and the network of carrying out target BS with the indication mobile radio station reenters process [S77].Mobile radio station MAC layer sends RNG-REQ message to target BS [S78].
After receiving RNG-REQ message, target BS MAC layer is delivered to its upper management entity [S79] via the information that M_Ranging.indication primitive will be included in the RNG-REQ message.Target BS upper management entity responds [S80] by transmitting M_Ranging.response primitive.Target BS sends RNG-RSP message to mobile radio station MAC layer [S81].After receiving RNG-RSP message, mobile radio station MAC layer is delivered to its upper management entity [S82] via the information that M_Ranging.confirmation primitive will be included in the RNG-RSP message.
As explaining with reference to figure 6 and 7, will be explained in more detail hereinafter by the primitive of the handover of mobile radio station or base station requests with execution by management SAP (M_SAP) and/or control SAP (C_SAP) transmission.
(1) M_MACHandover.request primitive
1) function
M_MACHandover.request is that the upper management entity by mobile radio station sends to indicate its MAC layer to send handoff request message to the primitive of base station.
2) semanteme
Following form shows the exemplary data format of M_MACHandover.request primitive.
[table 1]
3) formation time
When the upper management entity indication MAC of mobile radio station layer sends handoff request message (MOB_MSHO-REQ) to the base station, form M_MACHandover.request primitive.
Effect when 4) receiving
After the MAC of mobile radio station layer received M_MACHandover.request primitive, it sent MOB_MSHO-REQ to the base station of current connection.
(2) M_MACHandover.indication primitive
1) function
M_MACHandover.indication is such primitive, and its MAC layer by the base station uses, and will be delivered to from the request for handover that portable terminal receives its upper management entity.
2) semanteme
Following form has shown the exemplary data format of M_MACHandover.indication primitive.
[table 2]
3) formation time
When the MAC of base station layer is delivered to its upper management entity with it after receiving MOB_MSHO-REQ message from mobile radio station, form M_MACHandover.request primitive.
4) effect when receiving
When the upper management entity of base station receives M_MACHandover.indication primitive, the base station of the handover of the mobile radio station that it determine to recommend is used for utilizing target BS to pass through trunk message.
(3) M_MACHandover.response primitive
1) function
M_MACHandover.response is such primitive, and its upper management entity by the base station uses, to indicate its MAC layer transmission about the result of the hand-off request of mobile radio station.
2) semanteme
Following form has shown the exemplary data format of M_MACHandover.response primitive.
[table 3]
3) formation time
When the upper management entity of substrate will be delivered to its MAC layer about the hand-off request of mobile radio station, form M_MACHandover.response primitive.
Effect when 4) receiving
When the MAC of base station layer received M_MACHandover.response primitive, it sent to mobile radio station with MOB_BSHO-RSP message.
(4) M_MACHandover.confirmation primitive
1) function
M_MACHandover.confirmation is such primitive, and it is used by MAC layer of mobile radio station, being delivered to its upper management entity about the result of the hand-off request that receives from the base station.
2) semanteme
Following form shows the exemplary data format of M_MACHandover.confirmation primitive.
[table 4]
3) formation time
After the MOB_BSHO-RSP message that receives from the base station, when the MAC of mobile radio station layer will be delivered to its upper management entity about the result of hand-off request, form M_MACHandover.confirmation primitive.
4) effect when receiving
When the upper management entity of mobile radio station received M_MACHandover.confirmation, it determined whether to carry out the handover of target BS.
(5) M_HOIND.request primitive
1) function
M_HOIND.request is such primitive, and its upper management entity by mobile radio station uses, and with after determining target BS, notifies the MAC layer to carry out final handover target BS.
2) semanteme
Following form has shown the exemplary data format of M_HOIND.request primitive.
[table 5]
3) formation time
After determining target BS, when the upper management entity of mobile radio station indicates its MAC layer to carry out the handover of target BS, form M_HOIND.request primitive.
4) effect when receiving
When the MAC of mobile radio station layer received M_HOIND.request primitive, it arrived the base station with the MOB_HO-IND transmission of messages, and under these circumstances, if HO_IND-class indication handover, then mobile radio station is carried out the handover of target BS.
(6) M_HOIND.confirmation primitive
1) function
M_HOIND.confirmation is such primitive, and its MAC layer by mobile radio station uses, and with after transmission MOB_HO-IND message, it arrives the base station with the MOB_HO-IND transmission of messages notice upper management entity.
2) semanteme
3) formation time
When mobile radio station upgrade under the idle pulley its position connected to the network with the starting stage handover after, under idle pulley, attempt network connection or periodically carry out when finding range, form M_Ranging by the upper management entity, request primitive.
4) effect when receiving
When the upper management entity receives M_Ranging.request primitive, it carries out range finding with transmission RNG-REQ MAC administrative messag or ranging CDMA code by adding therein corresponding required LV (type lengths values) via air interface according to RangingType.
(8) M_Ranging.indication primitive
1) function
M_Ranging.indication is such primitive, and it is used for notice and receives for the request from the range finding of upper management entity by the MAC administrative messag.
2) semanteme
Following form has shown the exemplary data format of M_Ranging.indication primitive.
[table 8]
3) formation time
When the MAC layer receives RNG-REQ or range finding code via air interface, form M_Ranging.indication primitive.
4) effect when receiving
The distance measurement request that the MAC layer analysis receives, and the response range finding forms M_Ranging.response.
(9) M_Ranging.response primitive
1) function
M_Ranging.response is the primitive of notifying about the result of distance measurement request.
2) semanteme
Following form has shown the exemplary data format of M_Ranging.response.
[table 9]
3) formation time
After receiving M_Ranging.indication primitive, determine the result's that notice is corresponding time point, form M_Ranging.response primitive.
Effect when 4) receiving
The MAC layer sends RNG-RSP and MAC administrative messag, comprises the parameter that receives by M_Ranging.indication primitive.
(10) M_Ranging.confirmation primitive
1) function
M_Ranging.confirmation will notify the primitive of upper management entity about the result in the response message that is included in range finding.
2) semanteme
Following form shows the exemplary data format of M_Ranging.confirmation primitive.
[table 10]
3) formation time
When the MAC layer receives RNG-RSP by air interface, form M_Ranging.confirmation primitive.
Effect when 4) receiving
Notify the upper management entity with the result of range finding.
In order to carry out above-mentioned a plurality of feature, the present invention can adopt polytype hardware and/or software part (module).For example, different hardware modules can be included in the needed multiple circuit of step and the parts of carrying out the above method of scanning in the BWA.And different software module (by processor and/or other hardware implements) can comprise the needed Multiple Code of the step of carrying out the inventive method and agreement.
For handover (from MS MAC), the invention provides the method for carrying out the handover that is started by mobile radio station, comprise: receive the first primitive from mobile radio station (MS) network control management system (NCMS), this first primitive indication hand-off request; Send handoff request message to network; Receive the handover response response from this network; And the second primitive that will indicate handover to confirm sends to MS NCMS.The method may further include: use the heterogeneous network handover of the first and second primitive execution between one or more tie-points (POA), wherein the target P OA of dissimilar network indicated in this first and second primitive.The method may further include: receive the 3rd primitive from MS NCMS, the handover of indication request is carried out in its indication; The handover Indication message is sent to network; And sending the 4th primitive to MS NCMS, the handover that indication is confirmed is carried out in the indication of the 4th primitive.The method may further include: use the heterogeneous network handover of the third and fourth primitive execution between one or more tie-points (POA), wherein the target P OA of dissimilar network indicated in this third and fourth primitive.The first primitive or handoff request message comprise target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).The first primitive comprise the number of recommending tie-point (POA), POA sign (such as: MAC Address), be used for corresponding POA radio signal quality (such as CINR average (mean), RSSI etc.), HO pattern, current link behavior at least one of them.The indication of HO pattern is to carry out HO before disconnecting current link, or disconnects current link before carrying out HO.The current link behavior indicate whether to carry out current link disconnection, reduce link power, carry out link outage, carry out cancelling without behavior, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request or handover of link.Handover response message or the second primitive comprise target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).Wireless quality, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request, the handover that handover response message or the second primitive comprise the number of recommending POA, HO process optimization, HO ID, POA sign and is used for corresponding POA cancelled, HO abandons (abort)/failure cause at least one of them.Whether the IP address before the indication of HO process optimization can be used for target P OA.HO ID will find range for improvement of HO.The 3rd primitive or handover Indication message comprise target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).The 3rd primitive or handover Indication message comprise HO indication type.HO indication type comprises HO, HO cancellation or HO refusal.The 3rd primitive or handover Indication message comprise the current link behavior, and this current chained line is the disconnection that indicates whether to carry out current link, the power that reduces link, carries out the outage of link, carries out cancelling without behavior, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request, handover of link.The 4th primitive comprises object code, and this object code is indicated to result's success or the failure of the transmission of messages of network.
For handover (from the viewpoint of network/BS NCMS), the invention provides the method for carrying out by the handover of network startup, comprising: receive handoff request message from mobile radio station (MS) media access controls (MAC) layer; The first primitive is sent to network N CMS (network control management system), and this first primitive indication handover is carried out indication; Receive the second primitive from network N CMS, the handover of response is carried out in this second primitive indication; And handover response message sent to MS MAC layer.Network N CMS supports the management function of mobile radio station, and is as the layer in the independent community in the management entity.The method may further include: use the first and second primitive to carry out the heterogeneous network handover between one or more tie-points (POA), wherein the target P OA of the first and second primitive indication different type network.The first primitive or handoff request message comprise target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).The first primitive or handoff request message comprise the number of recommending tie-point (POA), POA sign, the radio signal quality that is used for corresponding POA, HO pattern, current link behavior at least one of them.The indication of HO pattern is to carry out HO before disconnecting current link, or disconnects current link before carrying out HO.The current link behavior indicate whether to carry out current link disconnection, reduce link power, carry out link outage, carry out cancelling without behavior, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request or handover of link.Handover response message or the second primitive comprise target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).Handover response message or the second primitive comprise the number of recommending POA.HO process optimization, HO ID, POA sign and the radio signal quality, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request, the handover that are used for corresponding POA are cancelled, HO abandons/failure cause at least one of them.The HO process preferably indicates previous IP address whether to can be used in target P OA.HO ID will find range for improvement of HO.
For handover (from the viewpoint of MS MIH), the invention provides the method for carrying out the handover that is started by mobile radio station, comprise: the first primitive is sent to mobile radio station (MS) network control management system (NCMS), this first primitive indication hand-off request; And the second primitive that receives the affirmation of indication handover from MS NCMS.The method also further comprises: use the first and second primitive to carry out the heterogeneous network handover between one or more POA, wherein the target P OA of dissimilar network indicated in the first and second primitive.The method can further comprise before receiving step:, if necessary, in order to carry out the repeating transmission of the first primitive, wait for receiving the second primitive.By carrying out wait with timer.The first primitive comprises target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).The first primitive comprises at least one of the number of recommending tie-point (POA), POA sign, the radio signal quality that is used for corresponding POA, HO pattern, current link behavior.The indication of HO pattern is to carry out HO before disconnecting current link, or disconnects current link before carrying out HO.The current link behavior indicate whether to carry out current link disconnection, reduce link power, carry out link outage, carry out cancelling without behavior, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request or handover of link.The second primitive comprises target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).Radio signal quality, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request, the handover that the second primitive comprises the number of recommending POA, HO process optimization, HO ID, POA sign and is used for corresponding POA cancelled, HO abandons/failure reason could at least one of them.Whether the IP address can be used for target P OA before the indication of HO process optimization.HO ID will for improvement of HO range finding.The method may further include: send the 3rd primitive to MS NCMS, the handover of indication request is carried out in the indication of the 3rd primitive; And receiving the 4th primitive from MS NCMS, the handover that indication is confirmed is carried out in the indication of the 4th primitive.The method may further include: use the third and fourth primitive to carry out the heterogeneous network handover between one or more POA, wherein the target P OA of dissimilar network indicated in the third and fourth primitive.The 3rd primitive comprises target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).The 3rd primitive comprises HO indication type.HO indication type comprises HO, HO cancellation or HO refusal.The 3rd primitive comprises the current link behavior, and what its disconnection, the power of reduction link, the outage of execution link, execution that indicates whether to carry out current link linked cancels without behavior, link resources reservation, data retransmission request, bi-directional data type conversion (bi-casting) request, handover.The 4th primitive comprises object code, and it is indicated to result's success or the failure of the transmission of messages of network.The method may further include: unified (unified) interface is set up on the upper strata of mobile radio station, be used for management to and from least one message of homogeneous network and heterogeneous network.
For handover (from the viewpoint of network MIH), the invention provides the method for carrying out by the handover of network startup, comprise: receive the first primitive from network N CMS (network control management system), this first primitive indication hand-off request; And sending the second primitive to network N CMS, this second primitive indication handover is confirmed.The method may further include: use the first and second primitive to carry out the heterogeneous network handover between one or more POA, wherein the target P OA of dissimilar network indicated in the first and second primitive.The first primitive comprises target candidate person.Target candidate person comprises at least one tie-point (POA).POA comprises base station (BS) or access point (AP).The first primitive comprise the number of recommending tie-point (POA), POA sign, the radio signal quality that is used for corresponding POA, HO pattern, current link behavior at least one of them.The indication of HO pattern is to carry out HO before disconnecting current link, or disconnects current link before carrying out HO.The current link behavior indicate whether to carry out current link disconnection, reduce link power, carry out link outage, carry out cancelling without behavior, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request or handover of link.The second primitive comprises that target candidate person, target candidate then comprise at least one tie-point (POA).POA comprises base station (BS) or access point (AP).Radio signal quality, link resources reservations, data retransmission request, bi-directional data type conversion (bi-casting) request, the handover that the second primitive comprises the number of recommending POA, HO process optimization, HO ID, POA sign and is used for corresponding POA cancelled, HO abandons/at least one of failure cause.Whether the IP address can be used in target P OA before the indication of HO process optimization.HO ID will for improvement of HO range finding.The method may further include: be established to the unified interface on the upper strata of network, be used for management to and from least one message of homogeneous network and heterogeneous network.
As for result of the present invention, when mobile radio station is carried out handover by the primitive of using the definition according to the present invention, can finish the accurate operation in protocol stack layers.Therefore because NCMS and MIH layer can by primitive make communicate in direct or indirect mode, can obtain media independence handover (MIH) process.
This specification has been described a plurality of illustrative embodiments of the present invention.The scope intention of claim covers multiple modification and the equivalent of disclosed illustrative embodiments in the specification.Therefore, following claim should be shown covering modification, equivalent structure and the feature consistent with the spirit and scope of invention disclosed herein with reasonable broad interpretation one.
Claims (44)
1. the method for a handover that is started by mobile radio station of carrying out at mobile radio station media access control (MAC) layer comprises:
Receive the first primitive from mobile radio station (MS) network control management system (NCMS), this first primitive indication hand-off request;
Handoff request message is sent to network;
Receive handover response message from network; And
Send the second primitive to MS NCMS, this second primitive indication handover is confirmed.
2. method according to claim 1 further comprises:
Use the first and second primitive between one or more tie-points (POA), to carry out the heterogeneous network handover,
Wherein, the target P OA of this first and second primitive indication different type network.
3. method according to claim 1 further comprises:
Receive the 3rd primitive from MS NCMS, the 3rd primitive indication handover is carried out indication request;
The handover Indication message is sent to network; And
Send the 4th primitive to MS NCMS, the 4th primitive indication handover is carried out indication and is confirmed.
4. method according to claim 3 further comprises:
Use the third and fourth primitive between one or more tie-points (POA), to carry out the heterogeneous network handover,
Wherein, the target P OA of dissimilar network indicated in this third and fourth primitive.
5. method according to claim 1, wherein, this first primitive or handoff request message comprise target candidate person.
6. method according to claim 5, wherein, described target candidate person comprises at least one tie-point (POA).
7. method according to claim 6, wherein, this POA comprises base station (BS) or access point (AP).
8. method according to claim 1, wherein, this first primitive or handoff request message comprise the number of recommending tie-point (POA), POA sign, the radio signal quality that is used for corresponding POA, handoff mode, current link behavior at least one of them.
9. method according to claim 8, wherein, this handoff mode indication is to carry out handover before disconnecting current link, or disconnects current link before carrying out handover.
10. method according to claim 8, wherein, this current chained line be the disconnection that indicates whether to carry out current link, the power that reduces link, carry out link outage, carry out cancelling without behavior, link resources reservations, data retransmission request, the request of bi-directional data type conversion or handover of link.
11. method according to claim 1, wherein, this handover response message or the second primitive comprise target candidate person.
12. method according to claim 11, wherein, this target candidate person comprises at least one tie-point (POA).
13. method according to claim 12, wherein, this POA comprises base station (BS) or access point (AP).
14. method according to claim 3, wherein, the 3rd primitive or handover Indication message comprise target candidate person.
15. method according to claim 14, wherein, this target candidate person comprises at least one tie-point (POA).
16. method according to claim 15, wherein, this POA comprises base station (BS) or access point (AP).
17. method according to claim 3, wherein, the 3rd primitive or handover Indication message comprise handover indication type.
18. method according to claim 17, wherein, this handover indication type comprises handover, handover cancellation or handover rejection.
19. method according to claim 3, wherein, the 3rd primitive or handover Indication message comprise the current link behavior, and this current chained line is the disconnection that indicates whether to carry out current link, the power that reduces link, carries out the outage of link, carries out cancelling without behavior, link resources reservations, data retransmission request, the request of bi-directional data type conversion, handover of link.
20. method according to claim 3, wherein, the 4th primitive comprises object code, and this object code is indicated to the transmission of messages result's of network success or failure.
21. the method for a handover that is started by mobile radio station (MS) of carrying out at serving BS MAC layer comprises:
Receive handoff request message from mobile radio station (MS) media access controls (MAC) layer;
Send the first primitive to network N CMS, this first primitive indication handover is carried out indication;
Receive the second primitive from network N CMS, this second primitive indication handover is carried out response; And
Send handover response message to MS MAC layer.
22. method according to claim 21, wherein, this network N CMS supports the management function of mobile radio station, and is as the layer in the independent community of management entity.
23. method according to claim 21 further comprises:
Use the first and second primitive between one or more tie-points (POA), to carry out the heterogeneous network handover,
Wherein, the target P OA of dissimilar network indicated in this first and second primitive.
24. method according to claim 21, wherein, this first primitive or handoff request message comprise target candidate person.
25. method according to claim 24, wherein, this target candidate person comprises at least one tie-point (POA).
26. method according to claim 25, wherein, this POA comprises base station (BS) or access point (AP).
27. method according to claim 21, wherein, this first primitive or handoff request message comprise the number of recommending tie-point (POA), POA sign, the radio signal quality that is used for corresponding POA, handoff mode, current link behavior at least one of them.
28. method according to claim 27, wherein, this handoff mode indication is to carry out handover before disconnecting current link, or disconnects current link before carrying out handover.
29. method according to claim 27, wherein, this current chained line be the disconnection that indicates whether to carry out current link, the power that reduces link, carry out link outage, carry out cancelling without behavior, link resources reservations, data retransmission request, the request of bi-directional data type conversion or handover of link.
30. method according to claim 21, wherein, this handover response message or the second primitive comprise target candidate person.
31. method according to claim 30, wherein, this target candidate person comprises at least one tie-point (POA).
32. method according to claim 31, wherein, this POA comprises base station (BS) or access point (AP).
33. the method by the handover of network startup of carrying out at serving BS MAC layer comprises:
Receive the first primitive from network N CMS, this first primitive indication hand-off request;
Send MOB_BSHO-REQ message to mobile radio station MAC layer, this MOB_BSHO-REQ message is used for the request mobile radio station and carries out handover;
Receive MOB_HO-IND message from mobile radio station MAC layer, this MOB_HO-IND message is used to indicate the handover that mobile radio station is carried out target BS; And
Send the second primitive to network N CMS, this second primitive indication handover is confirmed.
34. method according to claim 33 further comprises:
Use the first and second primitive between one or more POA, to carry out the heterogeneous network handover,
Wherein, the target P OA of dissimilar network indicated in this first and second primitive.
35. method according to claim 33, wherein, this first primitive comprises target candidate person.
36. method according to claim 35, wherein, this target candidate person comprises at least one tie-point (POA).
37. method according to claim 36, wherein, this POA comprises base station (BS) or access point (AP).
38. method according to claim 33, wherein, this first primitive comprise the number of recommending tie-point (POA), POA sign, the radio signal quality that is used for corresponding POA, switch mode, current link behavior at least one of them.
39. described method according to claim 38, wherein, this switch mode indication is to carry out to switch before disconnecting current link, or disconnects current link before switching carrying out.
40. described method according to claim 38, wherein, this current chained line be the disconnection that indicates whether to carry out current link, the power that reduces link, carry out link outage, carry out cancelling without behavior, link resources reservations, data retransmission request, the request of bi-directional data type conversion or handover of link.
41. method according to claim 33, wherein, this second primitive comprises target candidate person.
42. described method according to claim 41, wherein, this target candidate person comprises at least one tie-point (POA).
43. described method according to claim 42, wherein, this POA comprises base station (BS) or access point (AP).
44. method according to claim 33 further comprises:
Be established to the unified interface on the upper strata of network, be used for management to homogeneous network and heterogeneous network at least one message and from least one message of homogeneous network and heterogeneous network.
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| PCT/KR2006/001087 WO2006101368A1 (en) | 2005-03-24 | 2006-03-24 | Method of executing handover in broadband wireless access system |
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| US7848291B2 (en) * | 2004-11-05 | 2010-12-07 | Interdigital Technology Corporation | Wireless metropolitan area network architecture for managing network resources and mobility |
| KR101384183B1 (en) * | 2006-10-23 | 2014-04-18 | 삼성전자주식회사 | Apparatus for managing media independent handover and method using the same |
| KR100836136B1 (en) * | 2006-12-20 | 2008-06-09 | 삼성전자주식회사 | Apparatus and method for hanodver between different communication systems |
| TW200908760A (en) | 2007-05-22 | 2009-02-16 | Nec Corp | Signal handover control device, method and program |
| US8379596B2 (en) * | 2007-07-11 | 2013-02-19 | Intel Corporation | Requesting MAC context information from neighbor base stations |
| CN101232419B (en) * | 2008-01-18 | 2010-12-08 | 西安西电捷通无线网络通信股份有限公司 | Wireless local area network access method based on primitive |
| CN101227362B (en) | 2008-01-18 | 2012-05-23 | 西安西电捷通无线网络通信股份有限公司 | Method for wireless personal area network access |
| KR101488015B1 (en) | 2008-01-25 | 2015-01-29 | 엘지전자 주식회사 | Method for Performing Handover Procedure and Creating Data |
| WO2010107278A2 (en) * | 2009-03-20 | 2010-09-23 | Lg Electronics Inc. | Method of reliable handover signaling procedure in a broadband wireless access system |
| CN102111832A (en) * | 2009-12-29 | 2011-06-29 | 中兴通讯股份有限公司 | Hard-switching method, communication system and base stations |
| KR101678814B1 (en) | 2010-04-12 | 2016-11-23 | 삼성전자주식회사 | Method and apparatus for supporting cooperative handover in broadband wireless communication system |
| US9264954B2 (en) | 2010-04-28 | 2016-02-16 | Qualcomm Incorporated | Neighbor relation information management |
| US9294972B2 (en) | 2010-04-28 | 2016-03-22 | Qualcomm Incorporated | Neighbor relation information management |
| US9794836B2 (en) * | 2012-12-24 | 2017-10-17 | Nokia Technologies Oy | Methods and apparatus for differencitating security configurations in a radio local area network |
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| KR100689508B1 (en) * | 2003-09-04 | 2007-03-02 | 삼성전자주식회사 | Method for performing handover in a communication system |
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| US6542490B1 (en) * | 1999-01-29 | 2003-04-01 | Nortel Networks Limited | Data link control proctocol for 3G wireless system |
| WO2005018269A1 (en) * | 2003-08-19 | 2005-02-24 | Lg Electronics Inc. | Apparatus and method for sharing radio protocol entities in wireless communication system |
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| TW200704215A (en) | 2007-01-16 |
| JP2008533943A (en) | 2008-08-21 |
| IL182534A (en) | 2012-09-24 |
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| KR20060103106A (en) | 2006-09-28 |
| IL182534A0 (en) | 2007-09-20 |
| CN101080883A (en) | 2007-11-28 |
| ATE515910T1 (en) | 2011-07-15 |
| JP4619435B2 (en) | 2011-01-26 |
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