CN101540993A - Sending method of neighbourhood message and WiMax system - Google Patents
Sending method of neighbourhood message and WiMax system Download PDFInfo
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Abstract
一种邻区消息的下发方法，适用于包含多个宏蜂窝小区的微波存取全球互通WiMax系统，其中，宏蜂窝小区中包含多个微蜂窝小区；核心网侧保存有各移动台MS归属微蜂窝小区信息和该归属微蜂窝小区所在的宏蜂窝小区的信息；在MS接入网络的过程中，服务于该MS所在地的基站从核心网侧获取到该MS归属微蜂窝小区信息和该归属微蜂窝小区所在的宏蜂窝小区的信息；在接入完成后，该基站作为服务基站向MS发送邻区消息，其中携带上述该MS归属微蜂窝小区信息和该归属微蜂窝小区所在的宏蜂窝小区信息中除当前服务小区信息外的所有小区信息。采用本发明后，克服了现有标准协议中邻区广播消息中包含大量微蜂窝小区邻区信息的缺点。
A method for sending neighbor cell messages, which is applicable to a WiMax system for global interoperability for microwave access including multiple macrocells, wherein the macrocell includes multiple microcells; The micro cell information and the information of the macro cell where the home micro cell is located; during the MS's access to the network, the base station serving the MS's location obtains the information of the MS's home micro cell and the home cell from the core network side. The information of the macro cell where the micro cell is located; after the access is completed, the base station, as the serving base station, sends a neighboring cell message to the MS, which carries the information of the micro cell to which the MS belongs and the macro cell where the micro cell belongs All cell information in the information except the current serving cell information. After adopting the invention, it overcomes the disadvantage that the neighboring cell broadcast message in the existing standard protocol contains a large amount of information about the neighboring cells of the small cells.
Description
Technical field
(Worldwide Interoperability for MicrowaveAccess, WiMax) system relate in particular to the delivery method and the WiMax system of a kind of adjacent area message to the present invention relates to micro-wave access global inter communication.
Background technology
Compare with present widely used various wireless networks, the WiMax technology has own special advantages.WiFi (Wireless Fidelity, WLAN (wireless local area network)) technology can provide the wireless access speed up to 54Mbps, but its transmission range is very limited, and effective radius is about 100 meters.3G (3rd Generation, third generation digital communication) mobile telephone system can provide boundless transmission range, but its access speed is but very slow.The appearance of WiMax has just remedied this two deficiencies.
As shown in Figure 1, mobile station MS inserts the flow process of WiMax network, specifically may further comprise the steps:
101, MS catches down channel and obtains the up channel parameter, and promptly system descending is synchronous;
102, initial ranging (Ranging) process, MS is by mutual with base station BS, and inclined to one side and frequency deviation is carried out uplink synchronous and is accurately adjusted when constantly adjusting;
103, MS sends SBC-REQ message and consults MS and BS negotiation PKM (Pair-wise Key Management, pairwise key management) protocol version, certification policy to BS to start SBC (SS Basic Capabilities, subscriber station basic capacity);
104, BS sends the AGW (AccessGateway, IAD) of MS_PreAttachment_Req message to its acquiescence, and notice has new MS to enter network;
105, receive new context block of AGW generation of MS_PreAttachment_Req about this MS ID, and to BS response MS_PreAttachment_Rsp message;
106, BS sends SBC-RSP message to the MS that carries out the authentication architecture strategy;
107, BS sends MS_PreAttachment_Ack message to AGW, confirms that SBC-RSP has sent to MS;
108, EAP (Extensible Authentication Protocol, EAP) authorizing procedure comprises that EAP process and three step handshake information are mutual.Main purpose is that AGW tests to the legal identity of MS, finishes the distribution of device authentication and subscription authentication and encrypted material and uses.Message subsequently all can be carried out verification (such as using CMAC (Cipher-based Message AuthenticationCode is based on the message authentication code of ciphertext) to prevent message replay attack);
109, MS carries out the 802.16e registration process, sends REG-REQ message to BS, carries the MS tenability in this message;
110, BS is transmitted to AGW by MS_Attachment_Req message with the EAP authentication result;
111, after AGW receives MS_Attachment_Req message, to BS response MS_Attachment_Rsp message;
112, BS sends REG-RSP message to MS, carries suitable parameter (according to the response of BS strategy or AGW) in the message.When send the decision-making that REG-RSP depends on BS;
113, BS sends MS_Attachment Ack message to AGW, and the MS_Attachment_Rsp message of its transmission of notice AGW receives, and has sent REG-RSP message and triggered the foundation that service flow is preset in the AGW initiation to MS;
114, Business Stream is set up flow process (comprise link set up process Connections Establishment (DSA-REQ/RSP/Ack) and data link is set up process Data Path Establishment (R6)), and MS could begin to obtain IP address and transmitting user data after having only Business Stream to set up to finish.
Traditional mobile cellular network structure as shown in Figure 2, according to IEEE 802.16e agreement, MS is after inserting the WiMax network, the information of all adjacent areas around serving BS Serving BS need dispose, and can come the topology information of radio network by MOB_NBR_ADV message according to the neighbor cell configuration information of system, the situation of contiguous BS and sub-district is provided for MS (Mobile Station, travelling carriage).MS in moving process, with the signal quality of current Serving BS more and more a little less than.In order to satisfy quality of services for users, inevitable requirement MS switches to the better base station of signal quality.MS is according to the adjacent area message that has got access to, can be by one group of scanning of MOB_SCN-REQ message request system assignment time slot, BS can reply the scanning gap information relevant with scanning with other of distributing to MS clearly with MOB_SCN_RSP message, MS can leave current Serving BS according to the content in this message then, remove to scan adjacent area BS, thereby whether the signal quality that obtains adjacent area BS needs to switch and switch on which BS with decision.
According to the development trend of existing network, on the future market a kind of like this application scenarios can appear, as shown in Figure 3.The personal user uses the WiMax technology to realize that microcellulor sub-district (microcell) covers in the home dwelling of oneself, and use WiMax macro cells (macrocell) to guarantee wireless coverage in zone widely, the situation of a large amount of families microcellulor sub-district promptly appears comprising in the macro cells.MS is limited in family microcellulor sub-district and the surrounding area thereof but can move to other microcellulor sub-district, and transregional switching can occur in the frontier district of microcellulor sub-district and macrocellular.
In above-mentioned application scenarios, if still according to original protocol configuration neighboring BS information and transmission neighboring broadcast messages, then owing to comprise a plurality of microcellulors sub-district in a macro cells, will inevitably cause sending in the neighboring broadcast messages of travelling carriage and comprise a large amount of neighboring BS information.Send though can carry out segmentation to neighboring broadcast messages, this all is a great challenge to the bandwidth of air-interface of communication system and the scan process ability of terminal.
Summary of the invention
The invention provides the delivery method of a kind of adjacent area message, overcome the shortcoming that comprises a large amount of microcellulors sub-district neighboring BS information in the neighboring broadcast messages.
For addressing the above problem, the invention provides the delivery method of a kind of adjacent area message, be applicable to the WiMax system that comprises a plurality of macro cells, wherein, comprise a plurality of microcellulors sub-district in the described macro cells;
Core-network side is preserved the information of the macro cells at each mobile station MS ownership microcellulor cell information and this place, ownership microcellulor sub-district;
In the process of MS access network, serve the on-site base station of this MS gets access to the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district from described core-network side information; After access is finished, described base station sends adjacent area message as serving BS to described MS, wherein carries all cell informations except that current service cell information in the macro cells information at above-mentioned this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district.
Further, said method also can have following feature:
When described ownership microcellulor sub-district was in the intersection of a plurality of adjacent macro cells, the information of the macro cells at the place, described ownership microcellulor sub-district of preserving in the described core net had a plurality of.
Further, said method also can have following feature:
Described base station is meant from the information that described core-network side gets access to the macro cells at described MS ownership microcellulor cell information and this place, ownership microcellulor sub-district:
When register flow path was initiated in described base station, the MS_Attachment_Rsp message that reply by described core-network side described base station got access to the information of the macro cells at described MS ownership microcellulor cell information and this place, ownership microcellulor sub-district at described MS.
Further, said method also can have following feature:
The information that the MS_Attachment_Rsp message that reply by described core-network side described base station gets access to the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district is meant:
Described core net has been carried the macro cells information at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district in the Reg Context information unit of the MS_Attachment_Rsp that replys to described base station.
Further, said method also can have following feature:
Described MS is behind access network, and described serving BS sends adjacent area message to described MS and specifically comprises:
Described serving BS judges it self is home base station or grand neighbor base station according to self information, if home base station then sends clean culture adjacent area message to described MS, wherein carries described each macro cells information; If grand neighbor base station then sends clean culture adjacent area message to described MS, wherein carry described ownership microcellulor cell information and other each the macro cells information except that this serving BS.
Further, said method also can comprise:
Described serving BS judges self according to self information neither home base station, neither grand neighbor base station, then do not send described clean culture adjacent area message to described MS.
Further, said method also can have following feature:
The sign Home BS ID that comprises the base station of serving this MS ownership microcellulor sub-district in the described MS ownership microcellulor cell information;
The sign Attach BS ID that comprises the base station of the macro cells of serving this place, ownership microcellulor sub-district in the described macro cells information.
Further, said method also can have following feature:
Described serving BS sends described adjacent area message to described MS and is meant: described serving BS periodically sends described adjacent area message to described MS.
Further, said method also can comprise:
After described MS receives described clean culture adjacent area message, determine whether carrying out follow-up standard handoff procedure according to the clean culture adjacent area message that obtains.
For addressing the above problem, the present invention also provides a kind of micro-wave access global inter communication WiMax system, wherein comprises a plurality of macro cells, wherein, comprises a plurality of microcellulors sub-district in the described macro cells, comprises core-network side equipment, mobile station MS and base station;
Described core-network side equipment is used to preserve the information that each MS belongs to the macro cells at microcellulor cell information and this place, ownership microcellulor sub-district;
Serve the on-site base station of MS and be used for process, from described core-network side equipment, get access to the information of the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district at described MS access network; Also be used for after access is finished sending adjacent area message to described MS, wherein carry all cell informations except that current service cell information in the macro cells information at above-mentioned this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district as serving BS.
Further, above-mentioned WiMax system also can have following feature:
When described ownership microcellulor sub-district was in the intersection of a plurality of adjacent macro cells, the information of the macro cells at the place, described ownership microcellulor sub-district of preserving in the described core-network side equipment had a plurality of.
Further, above-mentioned WiMax system also can have following feature:
Described core-network side equipment is used for carrying at the RegContext information unit of the MS_Attachment_Rsp that replys to described base station the macro cells information at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district.
Further, above-mentioned WiMax system also can have following feature:
Described serving BS is used for judging it self is home base station or grand neighbor base station according to self information, if home base station then is used for sending clean culture adjacent area message to described MS, wherein carries described each macro cells information; If grand neighbor base station then is used for sending clean culture adjacent area message to described MS, wherein carry described ownership microcellulor cell information and other each the macro cells information except that this serving BS.
Further, above-mentioned WiMax system also can have following feature:
The sign Home BS ID that comprises the base station of serving this MS ownership microcellulor sub-district in the described MS ownership microcellulor cell information;
The sign Attach BS ID that comprises the base station of the macro cells of serving this place, ownership microcellulor sub-district in the described macro cells information.
Further, above-mentioned WiMax system also can have following feature:
MS is used for determining whether carrying out follow-up standard handoff procedure according to the described clean culture adjacent area message of receiving.
After adopting the present invention, because the adjacent area cell information that clean culture adjacent area message comprises is wanted much less, therefore overcome the shortcoming that comprises a large amount of microcellulors sub-district neighboring BS information in the existing standard agreement in the neighboring broadcast messages, and do not revised existing traditional neighboring broadcast messages.
Description of drawings
Fig. 1 is the flow chart that mobile station MS inserts the WiMax network in the prior art;
Fig. 2 is traditional macro cells networking situation schematic diagram in the prior art;
Fig. 3 is the situation schematic diagram that comprises a large amount of families microcellulor sub-district in the prior art in macro cells;
Fig. 4 is the flow chart that adjacent area message issues in the application example of the present invention;
Fig. 5 is the step schematic diagram of structure clean culture adjacent area message MOB_UNI_NBR-ADV in the application example of the present invention.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
Below alleged MS be the MS that is limited in microcellulor sub-district and the surrounding area thereof and can not moves to other microcellulor sub-district.
The basic design of adjacent area of the present invention message issuing method is: core-network side is preserved the information of the macro cells at each MS ownership microcellulor cell information and this place, ownership microcellulor sub-district, wherein, when this ownership microcellulor sub-district is in the intersection of a plurality of adjacent macro cells, preserve the information of above-mentioned a plurality of adjacent macro cells in the core net.
Insert in the process of WiMax network at MS, serve the on-site base station of this MS gets access to the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district from core-network side information; After access is finished, this base station sends adjacent area message as serving BS to this MS, has comprised all cell informations except that current service cell information in the macro cells information at above-mentioned this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district in this adjacent area message.After this MS receives, can determine whether carrying out follow-up standard handoff procedure according to the adjacent area message that obtains.
Wherein, this base station can but be not limited to be at MS when it initiates register flow path, the MS_Attachment_Rsp message of replying by core-network side gets access to the information of the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district.In such cases, for in MS_Attachment_Rsp message, carrying the information of above-mentioned two class sub-districts, need existing MS_Attachment_Rsp message is made amendment, the structure of the MS_Attachment_Rsp message of stipulating in the existing protocol is as shown in table 1, and amended message is the macro cells information that increases this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district in the content of Reg Context information unit.
Table 1MS_Attachment_Rsp message structure
| IE | Reference | M/O | Notes |
| Failure Indication | 5.3.2.69 | O | |
| MS Info | Section 5.3.2.103 | O | Contains MS-related context in the nested IEs. |
| ＞REG Context | Section 5.3.2.144 | O | Identifies the MS REG Context parameters as enforced by the Authenticator. |
When specific implementation, the sign Home BS ID of available service in the base station (hereinafter to be referred as home base station) of this MS ownership microcellulor sub-district represents this MS ownership microcellulor cell information, sign AttachBS ID with the base station (hereinafter to be referred as grand neighbor base station) of the macro cells of serving this place, ownership microcellulor sub-district represents macro cells information, and is as shown in table 2.And the sign BS ID of each base station can adopt the definition of existing protocol, and its structure is as shown in table 3.Because ownership microcellulor sub-district may be in the intersection of a plurality of adjacent macro cells, so the Attach BS ID that carries among the Reg Context has a plurality of.
The amended REG Context of table 2 information unit structure
The structure of table 3BS ID
| Type | 25 |
| Length in octets | Variable(could be ofthree fixed sized：4，6and 16octets) |
| Value | The Identifier might be in format of either 4-octet IPv4Address，6-octet IEEE 802.16BS ID orl 6-octet IPv6Address.The length defines also the format ofthe Identifier. |
| Description | Unique BS Identifier，referring to a single sector with a single frequency assignment. |
| Parent TLV(s) | BSInfo |
MS is behind access network, serving BS sends adjacent area message to MS and specifically comprises: this serving BS judges it self is home base station or grand neighbor base station according to self information, if home base station, then periodically send clean culture adjacent area message MOB_UNI_NBR-ADV (its structure is as shown in table 4), wherein carry each grand neighbor base station sign (being Attach BS ID) to above-mentioned MS; If grand neighbor base station, then periodically send clean culture adjacent area message MOB_UNI_NBR-ADV (its structure is as shown in table 4), wherein carry home base station sign (being Home BS ID) and other each the grand neighbor base station sign except that this serving BS to above-mentioned MS; Just not do not need to send clean culture adjacent area message if be not.
The structure of the newly-increased MOB_UNI_NBR-ADV message of table 4
| Name | TYPE (1 byte | Length (1 | Notes |
| DCD_settings | |||
| 1 | variable | Referring to agreement 11.18.1MOB_NBR-ADV message encodings | |
| UCD_settings | 2 | variable | Referring to agreement 11.18.1MOB_NBR-ADV message encodings |
| Neighbor BS trigger | 4 | variable | Referring to agreement 11.18.1MOB_NBR-ADV message encodings |
And the WiMax system among the present invention comprises a plurality of macro cells, wherein, comprises a plurality of microcellulors sub-district in the macro cells, and this system comprises core-network side equipment, MS and base station.
Core-network side equipment is used to preserve the information that each MS belongs to the macro cells at microcellulor cell information and this place, ownership microcellulor sub-district;
Serve the on-site base station of MS and be used for process, from core-network side equipment, get access to the information of the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district at the MS access network; Also be used for after access is finished sending adjacent area message to MS, wherein carry all cell informations except that current service cell information in the macro cells information at above-mentioned this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district as serving BS.When angelica microcellulor sub-district was in the intersection of a plurality of adjacent macro cells, the information of the macro cells at this place, ownership microcellulor sub-district of preserving in the core-network side equipment had a plurality of.
Core-network side equipment is used for carrying at the Reg Context information unit of the MS_Attachment_Rsp that replys to the base station macro cells information at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district.
Serving BS is used for judging it self is home base station or grand neighbor base station according to self information, if home base station then is used for sending clean culture adjacent area message to MS, wherein carries each macro cells information; If grand neighbor base station then is used for sending clean culture adjacent area message to MS, wherein carry ownership microcellulor cell information and other each the macro cells information except that this serving BS.
The sign Home BS ID that comprises the base station of serving this MS ownership microcellulor sub-district in the above-mentioned MS ownership microcellulor cell information; And comprise the sign Attach BS ID of the base station of the macro cells of serving this place, ownership microcellulor sub-district in the macro cells information.
MS also is used for determining whether carrying out follow-up standard handoff procedure according to the clean culture adjacent area message of receiving.
Further be illustrated with an application example of the present invention below.
Fig. 4 is the amended access process figure of the inventive method.Begin to illustrate handling process of the present invention from register flow path.As shown in Figure 4, may further comprise the steps:
The appropriate section that SBC negotiation between step 401:MS and base station BS and authorizing procedure still adopt access process in the existing protocol standard does not make an amendment, referring to Fig. 3 step (1)～(22);
After step 402:SBC and authorizing procedure were finished, MS finished the negotiation of high-rise ability by the initialization register flow path, and MS sends the capability negotiation of REG-REQ request MAC (Media Access Control, FDDI sublayer protocol) layer to BS;
Step 403:BS transmits MS_Attachment_Req message to AGW (Access Gateways, IAD);
Step 404:AGW sends MS_Attachment_Rsp message, comprises this BS home base station sign Home BS ID and grand neighbor base station sign Attach BSID (having a plurality of) in the Reg Context information unit of this message; BS receives back preservation relevant information;
Step 405:BS returns REG-RSP message to MS;
Step 406:BS responds MS_Attachment_Ack message to AGW;
Step 407: Business Stream is set up flow process;
Step 408～409:BS periodically sends clean culture adjacent area message MOB_UNI_NBR-ADV to this MS, with notice terminal neighboring BS information.And the step of BS encapsulation and transmission MOB_UNI_NBR-ADV message is as shown in Figure 5, comprising:
After step 501:BS receives MS_Attachment_Rsp message, preserve the Home BS ID and the Attach BS ID that carry in this message;
Step 502: behind this MS access network, this BS begins to construct MOB_UNI_NBR-ADV message as serving BS.
Earlier judge whether this BS is Home BS or Attach BS, if neither Home BS, neither Attach BS, then direct execution in step 505; Otherwise, execution in step 503.
Step 503:BS judgement itself is Home BS or Attach is BS, if Home is BS, the MOB_UNI_NBR-ADV message of structure comprises Attach BS ID; If Attach is BS, the MOB_UNI_NBR-ADV message of structure comprises Home BS ID and other Attach BS ID except that this BS ID;
Step 504: the start-up period transmission timer sends the MOB_UNI_NBR-ADV message that constructs;
Step 505: flow process finishes.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (15)
1, the delivery method of a kind of adjacent area message is applicable to the micro-wave access global inter communication WiMax system that comprises a plurality of macro cells, wherein, comprises a plurality of microcellulors sub-district in the described macro cells, it is characterized in that,
Core-network side is preserved the information of the macro cells at each mobile station MS ownership microcellulor cell information and this place, ownership microcellulor sub-district;
In the process of MS access network, serve the on-site base station of this MS gets access to the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district from described core-network side information; After access is finished, described base station sends adjacent area message as serving BS to described MS, wherein carries all cell informations except that current service cell information in the macro cells information at above-mentioned this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district.
2, the method for claim 1 is characterized in that,
When described ownership microcellulor sub-district was in the intersection of a plurality of adjacent macro cells, the information of the macro cells at the place, described ownership microcellulor sub-district of preserving in the described core net had a plurality of.
3, method as claimed in claim 1 or 2 is characterized in that,
Described base station is meant from the information that described core-network side gets access to the macro cells at described MS ownership microcellulor cell information and this place, ownership microcellulor sub-district:
When register flow path was initiated in described base station, the MS_Attachment_Rsp message that reply by described core-network side described base station got access to the information of the macro cells at described MS ownership microcellulor cell information and this place, ownership microcellulor sub-district at described MS.
4, method as claimed in claim 3 is characterized in that,
The information that the MS_Attachment_Rsp message that reply by described core-network side described base station gets access to the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district is meant:
Described core net has been carried the macro cells information at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district in the Reg Context information unit of the MS_Attachment_Rsp that replys to described base station.
5, method as claimed in claim 3 is characterized in that,
Described MS is behind access network, and described serving BS sends adjacent area message to described MS and specifically comprises:
Described serving BS judges it self is home base station or grand neighbor base station according to self information, if home base station then sends clean culture adjacent area message to described MS, wherein carries described each macro cells information; If grand neighbor base station then sends clean culture adjacent area message to described MS, wherein carry described ownership microcellulor cell information and other each the macro cells information except that this serving BS.
6, as any described method in the claim 1,2,4 or 5, it is characterized in that, also comprise:
Described serving BS judges self according to self information neither home base station, neither grand neighbor base station, then do not send described clean culture adjacent area message to described MS.
7, as any described method in the claim 1,2,4 or 5, it is characterized in that,
The sign Home BS ID that comprises the base station of serving this MS ownership microcellulor sub-district in the described MS ownership microcellulor cell information;
The sign Attach BS ID that comprises the base station of the macro cells of serving this place, ownership microcellulor sub-district in the described macro cells information.
8, as claim 1 or 5 described methods, it is characterized in that,
Described serving BS sends described adjacent area message to described MS and is meant: described serving BS periodically sends described adjacent area message to described MS.
9, the method for claim 1 is characterized in that, also comprises:
After described MS receives described clean culture adjacent area message, determine whether carrying out follow-up standard handoff procedure according to the clean culture adjacent area message that obtains.
10, a kind of micro-wave access global inter communication WiMax system wherein comprises a plurality of macro cells, wherein, comprises a plurality of microcellulors sub-district in the described macro cells, comprises core-network side equipment, mobile station MS and base station, it is characterized in that,
Described core-network side equipment is used to preserve the information that each MS belongs to the macro cells at microcellulor cell information and this place, ownership microcellulor sub-district;
Serve the on-site base station of MS and be used for process, from described core-network side equipment, get access to the information of the macro cells at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district at described MS access network; Also be used for after access is finished sending adjacent area message to described MS, wherein carry all cell informations except that current service cell information in the macro cells information at above-mentioned this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district as serving BS.
11, WiMax as claimed in claim 10 system is characterized in that,
When described ownership microcellulor sub-district was in the intersection of a plurality of adjacent macro cells, the information of the macro cells at the place, described ownership microcellulor sub-district of preserving in the described core-network side equipment had a plurality of.
12, WiMax as claimed in claim 10 system is characterized in that,
Described core-network side equipment is used for carrying at the RegContext information unit of the MS_Attachment_Rsp that replys to described base station the macro cells information at this MS ownership microcellulor cell information and this place, ownership microcellulor sub-district.
13, WiMax as claimed in claim 10 system is characterized in that,
Described serving BS is used for judging it self is home base station or grand neighbor base station according to self information, if home base station then is used for sending clean culture adjacent area message to described MS, wherein carries described each macro cells information; If grand neighbor base station then is used for sending clean culture adjacent area message to described MS, wherein carry described ownership microcellulor cell information and other each the macro cells information except that this serving BS.
14, as any described WiMax system in the claim 10～13, it is characterized in that,
The sign Home BS ID that comprises the base station of serving this MS ownership microcellulor sub-district in the described MS ownership microcellulor cell information;
The sign Attach BS ID that comprises the base station of the macro cells of serving this place, ownership microcellulor sub-district in the described macro cells information.
15, WiMax as claimed in claim 10 system is characterized in that,
MS is used for determining whether carrying out follow-up standard handoff procedure according to the described clean culture adjacent area message of receiving.
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| CN101540993B (en) | 2015-08-19 |
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