CN101984720B - Reconfiguration method of radio link, system and radio network controller (RNC) - Google Patents
Reconfiguration method of radio link, system and radio network controller (RNC) Download PDFInfo
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- CN101984720B CN101984720B CN201010539438.9A CN201010539438A CN101984720B CN 101984720 B CN101984720 B CN 101984720B CN 201010539438 A CN201010539438 A CN 201010539438A CN 101984720 B CN101984720 B CN 101984720B
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Abstract
The invention provides a reconfiguration method of a radio link, a system and a radio network controller (RNC) under a macro diversity scene. The method comprises the following steps: the RNC respectively carries out the configuration on the new service of user equipment (UE) and multiple Nodebs connected with the UE; the RNC receives a radio link recovery request massage from any Nodeb in the Nodebs, is switched to the configuration corresponding to the new service and transmits the configuration efficient information to the Nodebs; and the Nodebs receiving the configuration efficient information detect whether the self-configuration corresponding to the new service is efficient or not, and the configuration is efficient if the configuration is not efficient. After the RNC is switched to the new configuration, all Nodebs relative to the new service are instantly noticed through the invention, the non-efficient Nodebs are forced to be efficient and the efficient times of the Nodebs slightly differ so that the rapid reconfiguration and no call drop of the radio link under the macro diversity scene are realized.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of reallocating method of the wireless link under grand diversity scene, system and radio network controller.
Background technology
The network element that Fig. 1 shows the WCDMA system wireless access network of prior art is formed, as shown in Figure 1, RNC (RadioNetwork Controller, radio network controller) standard interface between network element and NodeB (Node B) network element is lub mouth, wireless link synchronization reprovision is a very important dedicated signaling in lub mouth NBAP (Node B Application Part, node B application part) signaling.
The corresponding wireless network side of UU mouth and UE (user terminal) side, the physical layer of wireless network side realizes on Nodeb network element, in wireless link synchronization reprovision, RNC is by the physical layer related parameter of NBAP signaling Nodeb configuration network side, RNC is also by RRC signaling (Radio Resource Control, unlimited resources controls) configuration UU mouth UE side physical layer related parameter, under normal circumstances, in order to realize terminal new business, the RNC corresponding with new business newly configures, Nodeb newly configures and can come into force at some time points with UE newly configuration simultaneously, realize new business requirement.
Wireless link synchronization reprovision has a detailed description in 3GPP agreement 25.433, completes in two steps, and the first step is wireless link reconfigured preparation, and second step is wireless link reconfigured submission.Wherein the first step is the preparatory stage of Nodeb, namely application is new configures but does not temporarily allow it work, in the wireless link reconfigured submission signaling of second step, just define Nodeb and newly configure the time point of starting working, also namely come into force CFN (Connection Frame Number (Counter), Connection Frame Number), because be synchronous reprovision, so this CFN is also that RNC network element newly configures the CFN that comes into force newly configured with UE network element simultaneously, three is synchronous.
The mode that this wireless link synchronization reprovision realized in two steps also has another special, i.e. quick reprovision, quick reprovision also has so two steps, but the difference of itself and common synchronization reprovision is: fast under reprovision, three related network elements new configuration take-effective time points can be variant, generally that after UE receives RRC signaling, its new configuration first comes into force, after Nodeb receives wireless link reconfigured submission, if after the up link of its new configuration active detecting UE under new configuration meets wireless link recovery condition, so the new configuration of Nodeb comes into force and sends out wireless link recovery signaling to RNC, RNC receives after Nodeb newly configures the wireless link recovery signaling sent, RNC is also switched to new configuration effort from old configuration immediately, so far business change completes.As can be seen here, contrast common synchronization reprovision, each network element of quick reprovision new configuration take-effective time point is different, the CFN that namely neither one is unified, but difference is little.Under this quick reprovision mode, terminal and network are switched to the process take time of the lower work of new configuration than shorter under synchronous reprovision mode, Here it is fast reprovision and the most basic difference of synchronous reprovision, also be the advantage of quick reprovision, if under switching frequently and fast wireless environment, this advantage is just reflected more clearly.
Grand diversity scene in WCDMA system of the prior art shown by Fig. 2, in WCDMA wireless communication technology, the grand diversity scene of wireless network refers to that UE is in soft switching process, many different link establishments on multiple different Nodeb (2 or more), like this, each business change, RNC needs to carry out wireless link synchronization reprovision to multiple Nodeb.For quick reprovision, 3GPP agreement has simple description, but how to implement quick reprovision under grand diversity scene, and 3GPP does not specifically describe, and each manufacturer can select not support quick reprovision under grand diversity scene, only supports common synchronization reprovision.
Under grand diversity scene, apply quick reprovision can there is following problem, if use quick reprovision mode, due to the CFN that comes into force that each network element is ununified, likely there is following situation: after the new configuration of UE first comes into force, the time point that the new configuration detection of different Nodeb meets wireless link recovery condition has successively, first come into force if certain Nodeb first meets wireless link recovery condition, and then notice RNC also comes into force at once, so other Nodeb (or not can meet the Nodeb of wireless link recovery condition) also not meeting wireless link recovery condition are by delayed, Nodeb different is like this just inconsistent in sequential, as long as RNC, after UE and one of them Nodeb is switched to new configuration, RNC will continue follow-up flow process, delayed Nodeb likely can not meet the executive condition of follow-up flow process, thus cause business procedure disorder and call drop.
Summary of the invention
Main purpose of the present invention is to provide a kind of reallocating method of the wireless link under grand diversity scene, system and radio network controller, above-mentionedly under grand diversity scene, applies quick reprovision at least to solve and cause the problem of the disorderly and call drop of business procedure.
According to an aspect of the present invention, provide a kind of reallocating method of the wireless link under grand diversity scene, comprise the following steps: RNC carries out the configuration of new business respectively to UE and multiple Nodeb be connected with UE; RNC receives the wireless link recovery request message from the arbitrary Nodeb in multiple Nodeb, is switched to the configuration corresponding with new business, and sends configuration take-effective message to multiple Nodeb; Whether the configuration corresponding with new business that the Nodeb receiving configuration take-effective message detects self comes into force, if Pending The Entry Into Force, then makes this configuration take-effective.
Further, RNC carries out the configuration of new business to UE, comprising: RNC carries out the configuration of new business to UE by RRC signaling.
Further, RNC carries out the configuration of new business to multiple Nodeb be connected with UE, comprising: RNC carries out the configuration of new business by wireless link reconfigured preparation and wireless link reconfigured submission to multiple Nodeb.
Further, RNC is switched to new configuration after receiving the wireless link recovery request message from the arbitrary Nodeb in multiple Nodeb before, also comprise: when Nodeb detects that the up link that UE newly configures meets wireless link recovery condition, send wireless link recovery request message to RNC.
Further, configuration take-effective message is Frame Protocol FP control frame.
Further, FP control frame at least comprises following field: control frame type field, control information field.
Further, when the Nodeb receiving configuration take-effective message detects that the new configuration of self comes into force, then configuration take-effective message is abandoned.
Further, reallocating method is applied to WCDMA system.
According to a further aspect in the invention, provide a kind of radio network controller, comprising: configuration module, for carrying out the configuration of new business respectively to UE and multiple Nodeb be connected with UE; Receiver module, for receiving the wireless link recovery request message from Nodeb; Handover module, for being switched to the configuration corresponding with new business according to wireless link recovery request message; Sending module, for sending configuration take-effective message to multiple Nodeb, wherein, configuration take-effective message is used to indicate configuration take-effective corresponding with new business in multiple Nodeb.
In accordance with a further aspect of the present invention, provide a kind of reprovision system of the wireless link under grand diversity scene, comprise: radio network controller (RNC), for carrying out business Reconfigurations to UE with multiple Nodeb be connected with UE, RNC is switched to new configuration after receiving the wireless link recovery request message from the arbitrary Nodeb in multiple Nodeb, and sends configuration take-effective message to multiple Nodeb; Node B (Nodeb), during for meeting wireless link recovery condition in the up link detecting that UE newly configures, wireless link recovery request is sent out to RNC, and when receiving configuration take-effective message, whether the configuration corresponding with new business detecting self comes into force, if Pending The Entry Into Force, then make this configuration take-effective
Pass through the present invention, after RNC is switched to new configuration, all Nodeb that notice is relevant to this new business immediately, pressure allows all unenforced Nodeb also come into force at once, make multiple Nodeb entry-into-force time differ very little, thus achieve the quick reprovision of the wireless link under grand diversity scene and not call drop.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the network element structural representation of the WCDMA system wireless access network according to correlation technique;
Fig. 2 is grand diversity scene schematic diagram in the WCDMA system according to correlation technique;
Fig. 3 is the reallocating method flow chart of the wireless link according to the embodiment of the present invention;
Fig. 4 is the radio network controller structured flowchart according to the embodiment of the present invention;
Fig. 5 is the reprovision system architecture diagram of the wireless link according to the embodiment of the present invention;
Fig. 6 is the reallocating method flow chart of the wireless link according to the embodiment of the present invention one;
Fig. 7 is the FP Control signal frame schematic diagram according to the embodiment of the present invention; And
Fig. 8 is the FP control frame process chart according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 3 is the reallocating method flow chart of the wireless link according to the embodiment of the present invention, as shown in Figure 3, comprises the following steps:
Step S302, radio network controller (RNC) carries out the configuration of new business respectively to UE and multiple Nodeb be connected with UE.
Step S304, RNC receive the wireless link recovery request message from the arbitrary Nodeb in multiple Nodeb, are switched to the configuration corresponding with new business, and send configuration take-effective message to multiple Nodeb.
Step S306, whether the configuration corresponding with new business that the Nodeb receiving configuration take-effective message detects self comes into force, if Pending The Entry Into Force, then makes this configuration take-effective.
In the above-mentioned methods, after RNC is switched to new configuration, all Nodeb that notice is relevant to this new business immediately, pressure allows all unenforced Nodeb also come into force at once, make multiple Nodeb entry-into-force time differ very little, thus achieve the wireless link under grand diversity scene quick reprovision and can not call drop.
Fig. 4 is the radio network controller structured flowchart according to the embodiment of the present invention, and as shown in Figure 4, this radio network controller comprises: configuration module 102, receiver module 104, handover module 106 and sending module 108.Wherein, configuration module 102, receiver module 104, to intercouple between handover module 106 and sending module 108, configuration module 102, for carrying out the configuration of new business respectively to UE and multiple Nodeb be connected with UE; Receiver module 104, for receiving the wireless link recovery request message from Nodeb; Handover module 106, for being switched to the configuration corresponding with new business according to wireless link recovery request message; Sending module 108, for sending configuration take-effective message to multiple Nodeb, wherein, configuration take-effective message is used to indicate configuration take-effective corresponding with new business in multiple Nodeb.
In above-mentioned radio network controller, RNC sends the configuration take-effective message informing all Nodebs relevant to this new business by sending module 108 after being switched to new configuration by handover module 106, forces to allow all unenforced Nodeb also come into force at once; Make multiple Nodeb entry-into-force time differ very little, thus achieve the quick reprovision of the wireless link under grand diversity scene and not call drop.
Fig. 5 is the reprovision system architecture diagram of the wireless link according to the embodiment of the present invention, as shown in Figure 5, this reprovision system comprises: RNC 10 and multiple Nodeb 20, wherein, RNC 10, for carrying out business Reconfigurations to UE with multiple Nodeb 20 be connected with UE, RNC 10 is switched to new configuration after receiving the wireless link recovery request message from the arbitrary Nodeb in multiple Nodeb 20, and sends configuration take-effective message to multiple Nodeb 20; Nodeb 20, during for meeting wireless link recovery condition in the up link detecting that UE newly configures, sends out wireless link recovery request to RNC, and when receiving configuration take-effective message, whether the configuration corresponding with new business detecting self comes into force, if Pending The Entry Into Force, then makes this configuration take-effective.
Fig. 6 is the reallocating method flow chart of the wireless link according to the embodiment of the present invention one, as shown in Figure 6, comprises the following steps:
Step S602, for meeting new business requirement, RNC configures by wireless link reconfigured preparation and wireless link reconfigured submission the new configuration that multiple Nodeb, RNC oneself also prepares oneself by RRC signal deployment UE, RNC.
Step S604, the up link that wherein the new configuration detection UE of certain Nodeb newly configures meets wireless link recovery condition, namely sends out wireless link recovery request to RNC, illustrates that UE and this Nodeb has been switched to new configuration, RNC oneself is also switched to new configuration, and such new business starts life's work.
Step S606, RNC oneself notifies all Nodebs relevant to this new business in lub mouth user face by FP control frame mode after being switched to new configuration immediately, forces to allow all unenforced Nodeb also come into force at once.
In above-mentioned steps S606, by the mode of lub mouth user face FP control frame, choice for use notifies that Nodeb is based on following consideration: under Nodeb do not know and oneself whether be in grand diversity business scenario, Nodeb does not know that whether oneself is delayed yet, and in 3GPP agreement, communication channel is not had between Nodeb, so Nodeb is passive, the delayed Nodeb doing quick reprovision under can only notifying grand diversity scene by RNC has come into force in time.The communication mode of general lub mouth has two kinds, and one is chain of command NBAP signaling, and one is user face data.If notified by chain of command NBAP signaling, in 3GPP agreement, there is no this special signaling, in view of the normalization of lub mouth, dealt with problems by chain of command and do not meet protocol requirement.But to be dealt with problems by the FP control frame in user face be a kind of well method.
Step S608, Nodeb receive pressure that RNC sends and come into force after notice, and self-inspection, if oneself enters into force, abandons, if oneself Pending The Entry Into Force, comes into force.
Fig. 7 is the FP Control signal frame schematic diagram according to the embodiment of the present invention, as shown in Figure 7, this FP control frame comprises frame head Header and load p ayload, frame head comprises Frame CRC (frame cyclic redundancy code) field and Control Frame Type (control frame type) field, and total length is two bytes; Payload comprises Control information field, Controlinformation (CONT.) and Spare Extension field, and the length of Payload is variable.
FP control frame has polytype, frame type is distinguished by Control Frame the type field, the implication of different FP Control signal frame representatives is not identical yet, in the present embodiment, the control frame that can construct a kind of specific type is applied in above-mentioned scene, this specification this special control frame of structure new control frame, RNC under quick reprovision mode and the new configuration of RNC enters into force when send new control frame to Nodeb, and in other situations, do not send out control frame new.
Fig. 8 is the FP control frame process chart according to the embodiment of the present invention, and as shown in Figure 8, first Nodeb is judged after receiving new control frame, if under Nodeb is in the unenforced state of quick reprovision, then comes into force at once; If Nodeb is doing quick reprovision, or reprovision enters into force fast, then do not process new control frame.
Pass through the above embodiment of the present invention, under grand diversity scene, if UE, after RNC and one of them Nodeb has been switched to new configuration, illustrate that new business has started normal work, then allow delayed Nodeb force in time to come into force in new configuration, the time phase difference that each like this Nodeb comes into force is little, differs greatly and the call drop that causes with regard to avoiding sequential.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a reallocating method for the wireless link under grand diversity scene, is characterized in that, comprising:
The Nodeb that radio network controller (RNC) is connected with multiple and described UE UE respectively carries out the configuration of new business;
Described RNC receives the wireless link recovery request message from the arbitrary Nodeb in described multiple Nodeb, is switched to the configuration corresponding with described new business, and sends configuration take-effective message to described multiple Nodeb;
Whether the configuration corresponding with described new business that the Nodeb receiving described configuration take-effective message detects self comes into force, if Pending The Entry Into Force, then makes this configuration take-effective.
2. the reallocating method of wireless link according to claim 1, is characterized in that, described RNC carries out the configuration of described new business to described UE, comprising:
Described RNC carries out the configuration of described new business to described UE by RRC signaling.
3. the reallocating method of wireless link according to claim 1, is characterized in that, described RNC carries out the configuration of new business to the Nodeb that multiple and described UE are connected, and comprising:
Described RNC carries out the configuration of described new business by wireless link reconfigured preparation and wireless link reconfigured submission to described multiple Nodeb.
4. the reallocating method of wireless link according to claim 1, is characterized in that, described RNC also comprises before being switched to new configuration after receiving the wireless link recovery request message from the arbitrary Nodeb in described multiple Nodeb:
When Nodeb detects that the up link that UE newly configures meets wireless link recovery condition, send described wireless link recovery request message to described RNC.
5. the reallocating method of the wireless link according to any one of Claims 1-4, is characterized in that, described configuration take-effective message is Frame Protocol FP control frame.
6. the reallocating method of wireless link according to claim 5, is characterized in that, described FP control frame at least comprises following field:
Control frame type field, control information field.
7. the reallocating method of wireless link according to claim 6, is characterized in that, when the Nodeb receiving described configuration take-effective message detects that the new configuration of self comes into force, then abandons described configuration take-effective message.
8. the reallocating method of the wireless link according to any one of Claims 1-4, is characterized in that, described reallocating method is applied to WCDMA system.
9. a radio network controller, is characterized in that, comprising:
Configuration module, the Nodeb for being connected with multiple and described UE UE respectively carries out the configuration of new business;
Receiver module, for receiving the wireless link recovery request message from described Nodeb;
Handover module, for being switched to the configuration corresponding with described new business according to described wireless link recovery request message;
Sending module, for sending configuration take-effective message to described multiple Nodeb, wherein, described configuration take-effective message is used to indicate configuration take-effective corresponding with described new business in described multiple Nodeb.
10. a reprovision system for the wireless link under grand diversity scene, is characterized in that, comprising:
Radio network controller (RNC), Nodeb for being connected with multiple and described UE UE carries out business Reconfigurations, described RNC is switched to new configuration after receiving the wireless link recovery request message from the arbitrary Nodeb in described multiple Nodeb, and sends configuration take-effective message to described multiple Nodeb;
Described Nodeb, during for meeting wireless link recovery condition in the up link detecting that described UE newly configures, wireless link recovery request is sent out to described RNC, and when receiving described configuration take-effective message, whether the configuration corresponding with new business detecting self comes into force, if Pending The Entry Into Force, then make this configuration take-effective.
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| CN103428715B (en) * | 2012-05-17 | 2016-09-28 | 中兴通讯股份有限公司 | Wireless link reconfigured method and device |
| CN103338518B (en) | 2012-12-31 | 2016-12-28 | 上海华为技术有限公司 | A kind of send the method for RRC signaling, base station and system |
| CN105704817A (en) * | 2014-11-28 | 2016-06-22 | 中兴通讯股份有限公司 | Base station and radio link reconfiguration control method |
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