CN101155413A - Method for switching RRC status and its user's set network appliance - Google Patents
Method for switching RRC status and its user's set network appliance Download PDFInfo
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Abstract
The present invention relates to communication domain, provided are a radio resource control state switching method and user equipment and network equipment. The core of the present invention is: through the method of the user equipment UE sends the information of the cell updating reason is 'sending uplink data' and the flow measuring information of the uplink data needed to be sent, to resolve effectively the problems of time delay prolonging of the state transition caused by multi-time processing UE radio resource control RRC state transition, empty ora resource superfluity consumption, system performance and capacity decreasing existing in the prior art, reducing the time delay of the RRC state transition, further reducing the time delay of UE sending uplink data; reducing the signaling interactive between the UE and the UTRAN, thereby achieving to reduce empty ora resource superfluity consumption, that is achieving the technique effect to reduce the radio resource consumption, and promoting the system performance and capacity at the same time.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of radio resource control state switching method and subscriber equipment and the network equipment.
Background technology
The 3GPP system is by UE (subscriber equipment, User equipment), UTRAN (universal terrestrial access network, Universal Terrestrial Radio Access Network) and CN (core net, Core Network) three parts.Communication between UE and the UTRAN is finished by the wave point of a kind of Uu of being referred to as, and UTRAN comprises RNC (radio network controller, Radio NetworkController).
The protocol stack of Uu interface comprises agreements such as RRC (Radio Resource control, Radio ResourceControl), RLC (Radio Link control, Radio Link control), MAC (medium access control, Medium Access Control) and physical layer.
The RRC agreement provides the connection of the signaling plane of Uu interface, is used to transmit the signaling that is controlled between UTRAN and the UE.RRC agreement regulation, UE is by four kinds of RRC states, these four kinds of RRC states are respectively URA_PCH (UTRAN Registration Area _ paging channel, UTRAN Registration Area_PagingChannel), CELL_PCH (cell paging channel), CELL_FACH (cell forward access channel) and CELL_DCH (cell private channel), these four kinds of states can be changed mutually, as shown in Figure 1.When having the RRC signaling to be connected between UE and the UTRAN, UE is in the RRC connection mode, and UE is in a kind of in these four kinds of RRC states.
Below we illustrate respectively these four kinds of RRC states, introduce the function when UE is in different RRC states, possess and processing mode accordingly simultaneously:
When Cell_DCH state: UE is in this RRC state of this RRC, refer to UE and have DCCH (Dedicated Control Channel) and these two kinds of channels of DTCH (Dedicated Traffic Channel), and UE can utilizes special use or shared channel to communicate status of processes; This dedicated channel is can only be by the Radio Resource of this UE use;
Cell_FACH state: refer to UE and have DCCH and DTCH, can go up at FACH (forward access channel) and receive data, in RACH (Random Access Channel, Random AccessChannel) goes up the transmission data, need not the assigned with dedicated channel for UE, UE transmits condition of information on public FACH/RACH channel; Owing to do not take dedicated channel, so can save Radio Resource, need not send the reception dedicated channel continuously simultaneously, UE also can power saving;
CELL_PCH state: refer to UE and can not use DCCH and DTCH, cannot on FACH, receive data, also cannot on RACH, send data, state that can only be when down direction is intercepted paging indicating message on the PICH (Page Indication Channel, Paging Indicator Channel); Can only send CELL Update message to RNC; In the conversion of sub-district to the RNC register information, because PICH is discontinuous monitoring, so the UE that is in this state is than CELL_FACH power saving more;
URA_PCH state: refer to UE and can not use DCCH and DTCH, do not possess the function that sends data on data and the RACH receiving on the FACH, only the state when down direction is intercepted paging indicating message on the PICH channel; Can only send URA Update or Cell Update message to RNC.In the UTRAN Registration Area conversion, register to RNC.Because the scope of UTRAN Registration Area is more much bigger than the sub-district, so the UE that is in this state is than CELL_PCH power saving more.
When needs allowed the UE that is in CELL_PCH and URA_PCH state send or receive data, needing earlier the state exchange with this UE was CELL_FACH state or CELL_DCH state, and this conversion can be that network is initiated, and also can be that UE initiates.
In the prior art, when UE is in CELL_PCH or URA_PCH state,, need to carry out Cell Update (cell update) to UE earlier if UE need send upstream data to network, with the RRC state exchange of UE to CELL_FACH state or CELL_DCH state; With the corresponding cell update flow process of the state exchange of the UE that is in the CELL_PCH state as shown in Figure 2, existing as example, illustrate and state exchange corresponding district new technological process more that concrete operating procedure is:
To step 20, UE is under the CELL_PCH state, send upstream data, and UE at first carries out Cell Update to oneself, and CELL_FACH is arrived in the state transition of oneself;
To step 21, UE goes up at CCCH (being mapped to RACH) and sends cell update message, and it is former because " transmission upstream data " that this cell update message carries cell update;
To step 22, after RNC receives this message, according to the cell update reason, the state of UE need be retained in CELL_FACH or move to CELL_DCH and go up (UE just can send data like this), so still move to the CELL_DCH state to being retained in CELL_FACH, need decide according to RRM (RRM, Radio Resource Manage) algorithm or other algorithms.In this case, the algorithm that has is earlier the state exchange of UE to be adjusted according to the data traffic of UE behind CELL_FACH again, if the data traffic of UE is big, just the RRC state of UE need be adjusted to the CELL_DCH state; The algorithm that has is the RRC state that decides UE according to the operating position of present private resource and public resource;
In this step, because the RRC state of the decision UE that adopts among the RNC switches to CELL_FACH or the algorithm of CELL_DCH state when making relevant decision, and do not know which radio bearer UE need send by the flow of data and transmission data, may appear at and determine the UE state exchange in this step to CELL_DCH or CELL_FACH, but afterwards in the flow measurement report that UE sends, upstream data flow and corresponding radio bearer (RadioBearer, relevant information RB) thereof of UE have been described.If flow is very little or its pairing certain RB only needs the FACH public resource, and RNC may be with the RRC state exchange of UE to the CELL_DCH state in Cell update process, and distributed dedicated channel, at this time just it need be transformed into the CELL_FACH state again; If flow is very big or its pairing certain RB needs the resource of dedicated channel, and in Cell Update process, the RRC state of UE is retained in the CELL_FACH state, needs again this time it is transformed into the CELL_DCH state again;
To step 23, the RRC state of RNC decision UE is after being retained in the CELL_FACH state or moving to the CELL_DCH state, sends the cell update acknowledgement message to UE, by this cell update acknowledgement message RRC state information and relevant configuration information is passed to UE;
To step 24, after UE receives the cell update acknowledgement message,, simultaneously RNC is returned mobile message acknowledge message (or possible other message, such as wireless channel reconfiguration message etc.) according to the own RRC state of this cell update acknowledgement message configuration;
To step 25, the cell update flow process finishes, and UE can send upstream data.
It can be seen from the above, because the uncertainty of the algorithm that adopts among the RNC in the step 22 when making relevant decision, UE may need to carry out once above RRC state transition, the RRC state transition of this UE could be arrived correct state, cause the time delay of state transition elongated like this, it is not prompt enough to send data; Each state transition of UE simultaneously all needs to send RRC message by air interface, and the RRC state of UE may once above state transition can cause interface-free resources additive decrementation, reduction system to get performance and capacity undoubtedly.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of radio resource control state switching method and the network equipment, solve that the time delay that has the state transition that the RRC state transition of repeatedly carrying out UE causes in the prior art is elongated, interface-free resources additive decrementation, reduction system get the problem of performance and capacity, thereby reach time delay, the additive decrementation that reduces interface-free resources that reduces state transition and improve the performance of system and the technique effect of capacity.
The objective of the invention is to be achieved through the following technical solutions:
A kind of radio resource control state switching method, concrete steps comprise:
It is former because the flow measurement information of the upstream data that the information of " transmission upstream data " and needs send that UE sends cell update;
Universal terrestrial access network UTRAN receives described information and flow measurement information, judges the state that the radio resource control RRC state of UE should be moved to according to described information and flow measurement information and corresponding strategies.
Behind the state that the RRC state of described UTRAN judgement UE should be moved to, UTRAN returns the information that carries judged result to UE, and UE carries out corresponding state transition according to the information that carries judged result.
Described uplink traffic metrical information comprises radio bearer RB information and corresponding with it uplink traffic information.
UE at the flow measurement information-bearing of the upstream data that sends the former because information of " transmission upstream data " of cell update on the Common Control Channel CCCH and need to send in cell update message.
UTRAN comprises according to the step of the RRC state of described information and flow measurement information and corresponding strategies judgement UE:
UTRAN is according to the size of the flow of the upstream data of described flow measurement information and the transmission of relevant parameter calculating UE needs;
UTRAN judges the state that the RRC state of UE should be moved to according to the big or small corresponding strategies of described flow.
Described step also comprises:
UTRAN sends the information and the relevant configuration information of the state that should move to according to the RRC state of the UE of the judged result decision of UTRAN to UE;
UE returns confirmation to UTRAN simultaneously and confirms that UE has received described information and relevant configuration information according to the RRC state of the described information and the relevant configuration information configuration UE of its reception.
Described step also comprises:
UE finishes cell update, sends upstream data.
A kind of subscriber equipment, described subscriber equipment comprise uplink traffic metrical information constructor and cell update message constructing device,
Described uplink traffic metrical information constructor is arranged in the user equipment (UE), is used to construct the flow measurement information of the upstream data that UE need send to UTRAN, and described flow measurement information is exported as output information;
Described cell update message constructing device is used for after receiving described flow measurement information, structure cell update message, and described cell update message comprises described flow measurement information; Described cell update message is exported as output information.
A kind of network equipment of universal terrestrial access network, the described network equipment comprise that uplink traffic information separates out module and judge module, wherein,
Described uplink traffic information is separated out module and is arranged among the universal terrestrial access network UTRAN, is used to receive UE to the cell update message that UTRAN sends, and resolves described cell update message and obtains the uplink traffic information that UE sends to UTRAN;
Described judge module is arranged among the UTRAN, is used for UTRAN and judges the state that the RRC state of UE should be moved to according to described uplink traffic information and corresponding strategies.
Described uplink traffic information is separated out module and is comprised cell update message parse device and uplink traffic metrical information resolver,
The cell update message that the UE that described cell update message parse device is used for that UTRAN is received sends is resolved, if find to carry in the described cell update message flow measurement information of the upstream data that UE need send to UTRAN, described flow measurement information exported as output information;
Described uplink traffic information parser is used for described flow measurement information is resolved, and obtains the flow information of described upstream data, exports described flow information to judge module.
As seen from the above technical solution provided by the invention, the invention provides a kind of method and the network equipment of radio resource control RRC state exchange, it is former because the method for the flow measurement information of the upstream data that the information of " transmission upstream data " and needs send to send cell update by user equipment (UE), the time delay that efficiently solves the state transition that the RRC state transition of repeatedly carrying out UE that exists in the prior art causes is elongated, the interface-free resources additive decrementation, reduce the problem of systematic function and capacity, reduce the time delay of the RRC state exchange of UE, and then reduce the time delay that UE sends upstream data; Reduce the Signalling exchange between UE and the UTRAN, thereby reach the additive decrementation that reduces interface-free resources, promptly reduce the technique effect of the consumption of Radio Resource, can improve the performance and the capacity of system simultaneously.
Description of drawings
RRC state exchange schematic diagram among Fig. 1 the present invention;
Fig. 2 is the cell update flow chart of prior art of the present invention;
Fig. 3 is the flow chart of RRC state exchange provided by the invention;
Fig. 4 is the UE that is provided with cell update message constructing device and uplink traffic metrical information constructor provided by the invention;
Fig. 5 is the UTRAN that is provided with cell update message parse device and uplink traffic metrical information resolver provided by the invention.
Embodiment
The invention provides a kind of radio resource control state switching method and the network equipment, reduce the time delay of the unlimited resources control RRC state exchange of UE, and then reduce the time delay that UE sends upstream data; Reduce the Signalling exchange between UE and the UTRAN, thereby reach the additive decrementation that reduces interface-free resources, promptly reduce the technique effect of the consumption of Radio Resource, improved the performance and the capacity of system simultaneously.
Core concept of the present invention is that UE transmission cell update is former because the flow measurement information of the upstream data that the information of " transmission upstream data " and needs send, UTRAN receives described information and flow measurement information, judge the state that the RRC state of UE should be moved to according to described flow measurement information and corresponding strategies, so that UE sends upstream data to UTRAN.
UE can send described information and described flow measurement information on Common Control Channel CCCH, also can on other channel, send described information and described flow measurement information, the present invention only sends described information with UE on CCCH and described flow measurement information is example, and technical scheme provided by the invention is illustrated.
Specifically, the operating procedure of the RRC state transition of UE provided by the invention comprises:
When UE is in CELL-PCH or URA-PCH state, if UE will send upstream data, need to initiate Cell Update process, in Cell Update message, carry the uplink traffic metrical information, UTRAN just can know clearly the uplink traffic of UE like this, the RRC state of UE is carried out the judgement of state transition at UTRAN, when just the RRC state of UE being carried out the judgement of state exchange, just can be with wherein uplink traffic information as one of Rule of judgment of decision-making, the state that can only just can more accurately the RRC state transition of UE be arrived by Cell Update process.
Below, we are example with the UE that is in the CELL-PCH state, and the concrete operations flow process of RRC state exchange provided by the invention is described, flow chart correspondingly as shown in Figure 3, concrete operating procedure is:
To step 30, the UE of CELL-PCH state need send upstream data to UTRAN, and this UE initiates Cell Update process, earlier the CELL-FACH state is arrived in the state transition of oneself;
To step 31, this UE goes up at CCCH (being mapped to RACH) and sends cell update message, it is former because " transmission upstream data " that this message is carried cell update, also carry the flow measurement information of the upstream data that UE need send to UTRAN simultaneously, this metrical information includes radio bearer (RadioBearer, RB) flow information of information and its corresponding upstream data;
To step 32, after UTAN receives this cell update message, according to cell update reason that comprises in this cell update message and described flow measurement information, while is according to other related algorithm parameter, calculating and judgement need be retained in the state of UE CELL_FACH or move on the CELL_DCH, this is that UE just can send data because have only when UE is in one of these two kinds of RRC states;
To step 33, UTRAN makes after the judgement to the RRC state of UE, the RRC state of also just saying UTRAN decision UE is after being retained in CELL_FACH state or migration CELL_DCH state, send the cell update acknowledgement message to UE, the information that UE should be in which kind of RRC state sends to UE with relevant configuration information;
To step 34, after UE receives the cell update acknowledgement message, the RRC state of the RRC state configuration UE self of UTRAN indication UE in the cell update acknowledgement message that receives according to UE, send mobile message acknowledge message (or other message of possibility to UTRAN simultaneously, such as wireless channel reconfiguration message etc.) reply, that is to say that UE in according to the RRC state that receives the cell update acknowledgement message configuration self that UTRAN sends over, returns the affirmation information that receives described cell update acknowledgement message to UTRAN;
To step 35, after finishing above-mentioned RRC state transition, described UE finishes the cell update flow process, sends described upstream data to UTRAN.
As shown in the above, carry the flow measurement information of the upstream data that UE need send in the cell update message that the present invention adopts, in order to reach the flow measurement information that makes UE send described upstream data by the method that sends Cell Update message, the present invention has added the information element of uplink traffic metrical information on existing C ell Update message basis, as shown in table 1.
Table 1: the information element that the present invention adds on existing Cell Update message basis
| Information Element/Group?name | Need | Multi | Type?and reference | Semantics?description | Version |
| Traffic volume measured results list (flow measurement the results list) | OP (optional) | Traffic volume measured results list 10.3.7.67 (flow measurement the results list is described in the 10.3.7.67 trifle) |
Table 1 shows that the cell update message of the present invention's definition is to have increased " flow measurement the results list " information element on the cell update message basis of prior art.This information element includes radio bearer ID, data amount information in this radio bearer corresponding buffer region.These information has been arranged, after UTRAN receives cell update message, just can analyze the uplink traffic of UE, and taken this as a foundation and implement the policing algorithm of state transition.
In order to carry out the structure of Cell Update message, the present invention also provides a kind of user equipment (UE), described UE comprises uplink traffic metrical information constructor and cell update message constructing device, its structure as shown in Figure 4, its operation principle is a uplink traffic metrical information constructor, be used to construct the flow measurement information of the upstream data that UE need send to UTRAN, with this information as output, send to cell update message constructing device, in realization, can transmit by the form of function interface API or message.After cell update message constructing device is received described flow measurement information, construct a cell update message, and the uplink traffic metrical information is constructed in the cell update message, and export the coding of this cell update message.
In order to realize that the described cell update message that UTRAN receives is resolved, the invention provides the network equipment of a kind of universal terrestrial access network UTRAN, the described network equipment comprises that uplink traffic information separates out module and judge module, these two modules all are arranged among the UTRAN, described uplink traffic information is separated out module and is comprised cell update message parse device and uplink traffic information parser, its structure as shown in Figure 5, the described uplink traffic information of operation principle is separated out module and is received the cell update message that UE sends to UTRAN, and resolves described cell update message and obtain the uplink traffic information that UE sends to UTRAN; Described judge module is used for UTRAN and judges the state that the RRC state of UE should be moved to according to described uplink traffic information and corresponding strategies; After that is to say that UTRAN receives the coding of the cell update message that UE sends, this coding is inputed to cell update message parse device, the coding of the cell update message that the UE that the cell update resolver receives UTRAN sends is resolved, if find wherein to carry the flow measurement information of the upstream data that UE need send to UTRAN, just will input to uplink traffic metrical information resolver with described flow measurement information corresponding codes, uplink traffic measurement resolver should be encoded and be resolved, and exports the flow information of described upstream data at last.
So far; the present invention is an example with the UE that is in the CELL-PCH state only; the method of RRC state exchange provided by the invention has been described; but the present invention is not only limited to the RRC state exchange of UE under this state; all are former because the mode of the flow measurement information of the upstream data that the information of " transmission upstream data " and needs send is carried out the technical scheme of RRC state exchange based on sending cell update by UE to UTRAN; no matter which kind of form of employing is all within protection scope of the present invention.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (10)
1. radio resource control state switching method is characterized in that concrete steps comprise:
It is former because the flow measurement information of the upstream data that the information of " transmission upstream data " and needs send that UE sends cell update;
Universal terrestrial access network UTRAN receives described information and flow measurement information, judges the state that the radio resource control RRC state of UE should be moved to according to described information and flow measurement information and corresponding strategies.
2. a kind of radio resource control state switching method according to claim 1, it is characterized in that, behind the state that the RRC state of described UTRAN judgement UE should be moved to, UTRAN returns the information that carries judged result to UE, and UE carries out corresponding state transition according to the information that carries judged result.
3. a kind of radio resource control state switching method according to claim 1 is characterized in that, described uplink traffic metrical information comprises radio bearer RB information and corresponding with it uplink traffic information.
4. a kind of radio resource control state switching method according to claim 1, it is characterized in that, UE at the flow measurement information-bearing of the upstream data that sends the former because information of " transmission upstream data " of cell update on the Common Control Channel CCCH and need to send in cell update message.
5. a kind of radio resource control state switching method according to claim 1 is characterized in that, UTRAN comprises according to the step of the RRC state of described information and flow measurement information and corresponding strategies judgement UE:
UTRAN is according to the size of the flow of the upstream data of described flow measurement information and the transmission of relevant parameter calculating UE needs;
UTRAN judges the state that the RRC state of UE should be moved to according to the big or small corresponding strategies of described flow.
6. a kind of according to claim 1 or 5 radio resource control state switching method is characterized in that described step also comprises:
UTRAN sends the information and the relevant configuration information of the state that should move to according to the RRC state of the UE of the judged result decision of UTRAN to UE;
UE returns confirmation to UTRAN simultaneously and confirms that UE has received described information and relevant configuration information according to the RRC state of the described information and the relevant configuration information configuration UE of its reception.
7. a kind of radio resource control state switching method according to claim 6 is characterized in that, described step also comprises:
UE finishes cell update, sends upstream data.
8. a subscriber equipment is characterized in that, described subscriber equipment comprises uplink traffic metrical information constructor and cell update message constructing device,
Described uplink traffic metrical information constructor is arranged in the user equipment (UE), is used to construct the flow measurement information of the upstream data that UE need send to UTRAN, and described flow measurement information is exported as output information;
Described cell update message constructing device is used for after receiving described flow measurement information, structure cell update message, and described cell update message comprises described flow measurement information; Described cell update message is exported as output information.
9. the network equipment of a universal terrestrial access network is characterized in that, the described network equipment comprises that uplink traffic information separates out module and judge module, wherein,
Described uplink traffic information is separated out module and is arranged among the universal terrestrial access network UTRAN, is used to receive UE to the cell update message that UTRAN sends, and resolves described cell update message and obtains the uplink traffic information that UE sends to UTRAN;
Described judge module is arranged among the UTRAN, is used for UTRAN and judges the state that the RRC state of UE should be moved to according to described uplink traffic information and corresponding strategies.
10. the network equipment of a kind of universal terrestrial access network according to claim 9 is characterized in that, described uplink traffic information is separated out module and comprised cell update message parse device and uplink traffic metrical information resolver,
The cell update message that the UE that described cell update message parse device is used for that UTRAN is received sends is resolved, if find to carry in the described cell update message flow measurement information of the upstream data that UE need send to UTRAN, described flow measurement information exported as output information;
Described uplink traffic information parser is used for described flow measurement information is resolved, and obtains the flow information of described upstream data, exports described flow information to judge module.
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| CN102821482B (en) * | 2011-06-07 | 2017-05-31 | 中兴通讯股份有限公司 | A kind of reduction RRC connects the method and device of time delay |
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