CN100502559C - Method for quick switching of service link - Google Patents
Method for quick switching of service link Download PDFInfo
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- CN100502559C CN100502559C CNB2006100761830A CN200610076183A CN100502559C CN 100502559 C CN100502559 C CN 100502559C CN B2006100761830 A CNB2006100761830 A CN B2006100761830A CN 200610076183 A CN200610076183 A CN 200610076183A CN 100502559 C CN100502559 C CN 100502559C
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Abstract
The invention relates to a method for quickly switching service chains, wherein it first adds quick service chain switch word that marks the service chain quick switch support function in the wireless chain response message. And the method also comprises that: a, NodeB receives the wireless chain request from RNC, and when confirms the quick switch, carrying the quick service chain switch word in the feedback wireless chain response message to the RNC; b, RNC receives the word to confirm the NodeB supports the service chain quick switch, to quickly switch the chain via wireless chain increment process. The invention can avoid delaying switch time.
Description
Technical field
The present invention relates to wireless communication technology field, specifically relate to a kind of realization service link fast switching method.
Background technology
High speed downlink packet inserts (HSDPA) professional and high speed uplink packet and inserts (HSUPA) business as the characteristic that third generation partner program (3GPP) R5 and R6 version increase newly, and purposes is very widely arranged.These two kinds of business are referred to as high-speed packet insert (HSPA) business.
The HSPA business features is: for same subscriber equipment (UE), there is and only exists a service link in Universal Terrestrial Radio Access Network (UTRAN) side, and this UE realizes communication in sub-district, service link place.Along with UE switches between different districts, service link also needs correspondingly to switch.
In the version before 680 versions of 3GPP agreement 25.433, the switching of service link can only be initiated by wireless links reconfiguration course, therefore, usually radio network controller (RNC) needs to increase Radio Link by Radio Link increase process earlier, by wireless links reconfiguration course service link is switched afterwards again.This shows that the process that RNC need carry out dual serial could realize the switching of service link, this obviously can increase the handover delay of service link.
In view of the above problems, increase the function that realizes the link switchover of HSPA business service by Radio Link increase process in 680 versions of 3GPP agreement 25.433 newly, thereby improved the switch speed of service link.This function is called the quick handoff functionality of service link.
In this version, several cells have been increased in the wireless link increasing request message, the dedicated channel service link (Serving E-DCH RL IE) that is high speed shared data channel Serving cell modification information (HS-DSCH Serving Cell Change Information IE), strengthens is connected frame number (Serving Cell Change CFN IE) with the service cell change, and the significance level of each IE (Criticality) all is a refusal (reject).Based on this setting, when RNC need carry out the service link switching, at first require NodeB handed over service link by this request message, if NodeB does not support this function, promptly do not support these IE of being increased yet, then should reply Radio Link increases the response message of failing, and the failure cause that this response message carries is that NodeB does not support these IE.RNC learns that by the failure cause in this response message NodeB does not support these IE, then by original flow process, promptly realizes the switching of service link by Radio Link increase and reconfiguration course.
The defective of the quick handover scheme of service link that this 680 version proposes is: because RNC is when needs carry out the service link switching, in advance and do not know whether NodeB supports the quick handoff functionality of service link, can only determine by the response message that NoedB in Radio Link increase process returns, this just makes RNC when carrying out the service link switching for the NodeB that does not support the quick handoff functionality of service link, federation's Radio Link of experience earlier increases the process of failing, and carrying out Radio Link according to the handover scheme of version proposition before again more afterwards increases and reconfiguration course.This will inevitably prolong the switching time of service link, even also can cause call drop.
Summary of the invention
In view of this, subject matter to be solved by this invention is to provide a kind of realization service link fast switching method, to reduce the switching time of service link.
For overcoming the above problems, the invention provides following technical scheme:
A kind of realization service link fast switching method is set up to set up in the response message to be used to identify at Radio Link and is supported the quick service link of the quick handoff functionality of service link to switch field, and this method is further comprising the steps of:
A. base station node B is after receiving that Radio Link that radio network controller (RNC) sends is set up request message, and when determining that self supports that service link switches fast, set up at the Radio Link that returns to RNC and to carry described quick service link in the response message and switch field;
B.RNC sets up the quick service link switching field of carrying in the response message by the Radio Link of receiving and determines that this NodeB supports that service link switches fast, when needs carry out the service link switching to this NodeB, increase the quick switching that process directly realizes service link afterwards by Radio Link.
Described Radio Link is set up response message and comprised: Radio Link sets up successful response message and Radio Link is set up failure response message.
Described foundation at Radio Link set up quick service link and switched field and comprise in the response message: set up at Radio Link and set up described quick service link in successful response message and the failure response message respectively and switch field.
Described step a may further include: NodeB returns and does not carry the response message that described quick service link switches field when determining self not support the quick handoff functionality of service link;
Correspondingly, described step b may further include: do not switch field if carry quick service link in the response message that RNC receives, determine that then this NodeB does not support that service link switches fast, when needs carry out the service link switching to this NodeB, realize the switching of service link by Radio Link increase and reconfiguration course afterwards.
The present invention sets up the quick service link switching field that is used for the quick handoff functionality of identification service link by setting up at Radio Link in the response message, and by NodeB when self supporting the quick handoff functionality of service link, setting up response message by Radio Link returns to RNC and carries quick service link and switch field, make RNC to set up response message and learn whether this NodeB supports that service link switches fast, can select corresponding service link handoff procedure that this NodeB is carried out service link afterwards and switch by Radio Link.
The present invention program is for the NodeB that does not support the quick handoff functionality of service link, the Radio Link that will inevitably occur in the time of can avoiding when its service link is switched carrying out earlier the handover scheme of 680 versions increases failure procedure, switches the used time thereby reduced service link.
Description of drawings
Fig. 1 is the message flow sequential chart of the present invention when NodeB supports the quick handoff functionality of service link;
Fig. 2 is the pairing flow chart of Fig. 1;
Fig. 3 is the message flow sequential chart of the present invention when NodeB does not support the quick handoff functionality of service link;
Fig. 4 is the pairing flow chart of Fig. 3.
Embodiment
Because before carrying out the service link switching, be bound to carry out Radio Link between RNC and the NodeB and set up process, therefore, the present invention program's thought mainly is that the Radio Link between RNC and NodeB is set up in the process, will self can support the quick handoff functionality of service link initiatively to inform RNC by NodeB.
Below in conjunction with drawings and the specific embodiments the present invention program is described in further detail.
The present invention program at first need set up at Radio Link increases an Optional Field in the response message, be used to identify NodeB and can support the quick handoff functionality of service link.Such as, in response message, increase a name and be called the field that quick service link switches (Faster Serving Cell Change).Because Radio Link is set up success response message and failure response message that response message comprises that Radio Link is set up, therefore need in these two response messages, this field be set respectively.
Based on above-mentioned setting, if NodeB self supports service link to switch fast, then the present invention program's message flow sequential as shown in Figure 1, corresponding handling process then as shown in Figure 2, concrete corresponding following steps:
What this step was set up is and the unique corresponding NBCC of UE.
Radio Link is set up may be successful, also may fail.If set up successfully, then the response message that NodeB returned is a success response message.If set up failure, what then return is failure response message, wherein, this foundation failure may be that NBCC sets up failure, it also may be the Radio Link foundation failure among the NBCC, at these two kinds foundation failures, whether the failure response message that NodeB can pass through to be returned will self support the quick handoff functionality of service link to inform RNC.
Step 203～204, RNC determine that according to the Faster Serving CellChange IE that carries in the response message of receiving this NodeB can support the quick handoff functionality of service link, afterwards, RNC carries out service link when switching fast at needs, increases the quick switching that process directly realizes service link by Radio Link.
Certainly, if NodeB self does not support that service link switches fast, then the present invention program's message flow sequential as shown in Figure 3, corresponding handling process then as shown in Figure 4, concrete corresponding following steps:
The above only is the present invention program's preferred embodiment, not in order to limit protection scope of the present invention.
Claims (4)
1. realize the service link fast switching method for one kind, it is characterized in that set up to set up in the response message to be used to identify at Radio Link and support the quick service link of the quick handoff functionality of service link to switch field, this method is further comprising the steps of:
A. base station node B is after receiving that Radio Link that radio network controller (RNC) sends is set up request message, and when determining that self supports that service link switches fast, set up at the Radio Link that returns to RNC and to carry described quick service link in the response message and switch field;
B.RNC sets up the quick service link switching field of carrying in the response message by the Radio Link of receiving and determines that this NodeB supports that service link switches fast, when needs carry out the service link switching to this NodeB, increase the quick switching that process directly realizes service link afterwards by Radio Link.
2. method according to claim 1 is characterized in that, described Radio Link is set up response message and comprised: Radio Link sets up successful response message and Radio Link is set up failure response message;
Among the described step a, described base station node B is set up successful response message or Radio Link at the Radio Link that returns to RNC and is set up and carry described quick service link in the failure response message and switch field when determining that self supports that service link switches fast.
3. method according to claim 2, it is characterized in that described foundation at Radio Link set up quick service link and switched field and comprise in the response message: set up at Radio Link and set up described quick service link in successful response message and the failure response message respectively and switch field.
4. according to any described method in the claim 1 to 3, it is characterized in that,
Described step a further comprises: NodeB returns and does not carry the response message that described quick service link switches field when determining self not support the quick handoff functionality of service link;
Described step b further comprises: do not switch field if carry quick service link in the response message that RNC receives, determine that then this NodeB does not support that service link switches fast, when needs carry out the service link switching to this NodeB, realize the switching of service link by Radio Link increase and reconfiguration course afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100761830A CN100502559C (en) | 2006-04-26 | 2006-04-26 | Method for quick switching of service link |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100761830A CN100502559C (en) | 2006-04-26 | 2006-04-26 | Method for quick switching of service link |
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| Publication Number | Publication Date |
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| CN1968508A CN1968508A (en) | 2007-05-23 |
| CN100502559C true CN100502559C (en) | 2009-06-17 |
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| CNB2006100761830A Active CN100502559C (en) | 2006-04-26 | 2006-04-26 | Method for quick switching of service link |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101562855B (en) * | 2008-04-14 | 2011-04-06 | 华为技术有限公司 | Method, device and system for processing wireless link increment process |
| CN101621838B (en) * | 2008-06-30 | 2013-03-20 | 上海华为技术有限公司 | Methods and devices for processing handover of network side |
| US10826835B2 (en) | 2014-09-19 | 2020-11-03 | Nokia Solutions And Networks Oy | Chaining of network service functions in a communication network |
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Effective date of registration: 20211223 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |