CN101860977A - Method and system for base station to obtain UE context information - Google Patents

Method and system for base station to obtain UE context information Download PDF

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Publication number
CN101860977A
CN101860977A CN200910081807A CN200910081807A CN101860977A CN 101860977 A CN101860977 A CN 101860977A CN 200910081807 A CN200910081807 A CN 200910081807A CN 200910081807 A CN200910081807 A CN 200910081807A CN 101860977 A CN101860977 A CN 101860977A
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base station
dsch
contextual information
frame
information
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CN101860977B (en
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李晓卡
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Abstract

The invention discloses a method for a base station to obtain user equipment (UE) context information. The UE context information comprises UE high-speed downlink shared channel (HS-DSCH) competence scale information, strengthened dedicated channel (E-DCH) competence scale information, the HS-DSCH wireless network temporary identity of UE and an E-DCH wireless network temporary identity (E-RNTI); RNC sends the UE context information to the base station through the HS-DSCH data frame or control frame of the Iub interface of the RNC and the base station; and the base station receives and saves the UE context information. The invention discloses a system causing the base station to obtain the UE context information. The scheme of the invention solves the problem that a terminal is transferred to CELL-PCH or CELL-FACH state in the HSPA+ system, the base station can not obtain H-RNTI and E-RNTI correspondence, the HS-DSCH competence scale information and the E-DCH competence scale information of the terminal to cause subsequent abnormal communication.

Description

Make the base station obtain the method and system of UE contextual information
Technical field
The present invention relates to the mobile communication technology field, particularly make the base station obtain the method and system of UE contextual information.
Background technology
Insert (High Speed Downlink Package Access in high-speed downlink packet, HSDPA) defined different subscriber equipment (UE) ability rating in the system to support different HSDPA peak rates, the ability rating of HSDPA is expressed as high-speed downlink shared channel (High-SpeedDownlink Shared Channel, HS-DSCH) physical layer ability rating (HS-DSCH physicallayer category).In traditional HSDPA system, HS-DSCH physical layer ability rating value is 1-15.
The UE ability rating has reacted following content:
UE cache size and UE the Transmission Time Interval of a 5ms (Transmission TimeInterval, in TTI) the physical channel resources amount that can receive simultaneously, described physical channel resources comprises time slot and code channel etc.;
The big or small upper limit of transmission block (TBS) that the interior UE of TTI can receive.
In the HSDPA operation, UE needs to predict the TBS dimension information that carries in the HS-DSCH data of this reception before receiving HS-DSCH, and the TBS dimension information of HS-DSCH carries by the HS-SCCH control channel.For indexation TBS, need the TBS size bitwise of pre-defined reality and the corresponding relation of TBS call number.In order to reduce the granularity that quantizes TBS, the actual corresponding bit number difference of TBS size in order to reduce by two adjacent call numbers is provided with different TBS forms at different HS-DSCH physical layer ability ratings among the HSDPA in other words.Described TBS form is exactly the TBS size of reality and the corresponding relation of TBS call number.
Along with High Speed Uplink Packet inserts (High Speed Uplink Packet Access, HSUPA) introducing, be provided with the physical layer ability rating (E-DCH physicallayer category) of different enhancing dedicated channels (E-DCH) equally, the value of E-DCH physical layer ability rating is 1-6.Equally for the E-DCH TBS size of index reality, defined corresponding relation between actual TBS transport block size and the TBS call number according to different E-DCH physical layer ability ratings equally.
By foregoing description as can be known, the TBS form that E-DCH and HS-DSCH are corresponding respectively among HSUPA and the HSDPA is relevant with the UE ability rating.That is to say that for the UE with different ability ratings, UE and base station (Node B) all selects the TBS form of this UE ability rating correspondence, and realize communicating between UE and the base station according to described TBS form.On the contrary, if the inconsistent words of TBS form that base station and UE adopt, can cause can't proper communication between UE and the base station.
At synchronous CDMA (Code Division Multiple Access) of time-division (Time Division-Synchronous Code DivisionMultiple Access, TD-SCDMA) in the system, UE has four kinds of states under connection status: CELL_DCH state, CELL_FACH state, CELL_PCH state and URA_PCH state.In order to improve the peak rate of transfer of data under CELL_FACH and the CELL-PCH state, E-DCH and HS-DSCH transmission mechanism have been introduced under CELL-FACH state and the CEL-PCH state.And reach an agreement in the system at present, when the process of base station by the UE transmission exclusive data of user side data frame to the CELL-PCH state under as shown in Figure 1, comprise the steps:
Step 101: the base station is by High-Speed Shared Control Channel (High-Speed Shared ControlChannel, HS-SCCH) carry UE the HS-DSCH Radio Network Temporary Identifier (HS-DSCHRadio Network Temporary Identifier, H-RNTI) notice UE initiates synchronously;
Step 102:UE receives after the H-RNTI on the HS-SCCH, initiates the uplink random access procedure, carries the E-RUCCH Radio Network Temporary Identifier (E-RNTI) of UE by enhanced uplink random access channel (E-RUCCH);
Step 103: the base station detects by E-RUCCH after the E-RNTI of this UE, sends data to this UE.
Before the UE that is in the CELL_PCH state sent the HS-DSCH data, first-selection received the HS-DSCH Frame of user's face by Iub interface by HS-DSCH in the base station.At present, can only carry dedicated H-RNTI in the HS-DSCH user side data frame under the CELL_PCH state, can't carry E-RNTI, also can't carry UE ability rating information.Can cause the base station HS-DSCH data can't be sent to the UE that is in the CELL-PCH state like this.
Increase proposition in the level system (HSPA+) at HSPA, support the HSDPA operation by CELL_FACH, CELL_PCH and URA_PCH state, to improve the descending peak rate under the described state, described technology is referred to as CELL_FACH and strengthens.The CELL_FACH wild phase is for the difference of major technique feature under the CELL_DCH state: CELL_FACH does not exist Radio Link foundation, increase and reconfiguration course in strengthening on the Iub interface.If UE is in the CELL_FACH enhanced situation, the base station is before HS-DSCH that receives UE reality and E-DCH ability rating information, need agreement UE and base station to use HS-DSCH and E-DCH ability rating information minimum or acquiescence, as radio network controller (Radio Network Control, when RNC) obtaining the ability rating information of UE reality, base station and UE use the time point of practical capacity grade to need alignment.At present under the CELL_FACH enhanced situation, do not have the setting of entry-into-force time dot information on the Iub interface, so just may bring and to realize the identical ability rating information of synchronous use between UE and the base station, thereby cause E-DCH and the HS-DSCH data can't normal delivery.
Summary of the invention
In view of this, the embodiment of the invention proposes a kind of method and system that makes the base station obtain the UE contextual information, can be to transfer to CELL_PCH or CELL_FACH state as UE after, and the base station can in time obtain the contextual information of UE.
A kind of method that makes the base station obtain the UE contextual information that the embodiment of the invention proposes, the UE contextual information comprises HS-DSCH ability rating information and the E-DCH ability rating information of UE, and the H-RNTI of UE and E-RNTI; This method comprises the steps:
RNC by its with the HS-DSCH Frame of the Iub interface of base station or control frame to base station transmission UE contextual information;
The base station receives and preserves described UE contextual information.
Another embodiment of the present invention proposes another makes the base station obtain the method for UE contextual information, the UE contextual information comprises HS-DSCH ability rating information and the E-DCH ability rating information of UE, HS-DSCH H-RNTI and the E-RNTI of UE, and the activationary time dot information that is used for indicating target CFN; This method comprises the steps:
The state that RNC detects UE shifts, and RNC sends the UE contextual information by the user face data frame of Iub interface to the base station;
The activationary time point that carry according to the user face data frame that receives the base station is updated to the UE contextual information that carries in the described user data face Frame with the UE contextual information of self preserving.
As can be seen from the above technical solutions, RNC places the HS-DSCH Frame or the control frame of the CELL_PCH state of Iub interface to pass to the base station UE contextual informations such as E-RNTI information, HS-DSCH and E-DCH ability rating information of terminal.The invention solves in the HSPA+ system, after terminal is transferred to terminal and is transferred to CELL_PCH or CELL_FACH state from CELL_DCH from CELL_DCH, the base station can't obtain H-RNTI and E-RNTI corresponding relation, and the HS-DSCH ability rating information of terminal and E-DCH ability rating information, thereby cause follow-up problem that can't proper communication.And RNC transmits the activationary time dot information to the base station, can make terminal use identical HS-DSCH and E-DCH ability rating with synchronization among base stations, guarantees the data normal delivery.
Description of drawings
Fig. 1 is the flow chart that the base station sends exclusive data in the prior art by the UE of user face data frame under the CELL-PCH state;
Fig. 2 is that the embodiment of the invention one has proposed the transfer of data for HS-DSCH under the CELL_PCH state, and the base station obtains the flow chart of UE contextual information;
Fig. 3 has proposed to transmit for the E-DCH and the HS-DSCH of CELL_FACH enhanced situation for the embodiment of the invention two, and the base station obtains the contextual flow chart of UE.
Embodiment
The present invention proposes a kind of base station that makes and obtains the contextual system of UE, comprise RNC and base station, described RNC is used to generate the contextual information of UE, described UE contextual information comprises HS-DSCH ability rating and the E-DCH ability rating information of UE, and the H-RNTI of UE and E-RNTI, and be used to the activationary time dot information of indicating described UE contextual information to come into force; RNC by its with the HS-DSCH Frame of the Iub interface of base station or control frame to base station transmission UE contextual information; The base station is used to receive described UE contextual information, and activates described UE contextual information in the moment of described activationary time dot information appointment.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is further elaborated below in conjunction with accompanying drawing.
The embodiment of the invention one has proposed the transfer of data for HS-DSCH under the CELL_PCH state, and the base station obtains the method for UE contextual information, as shown in Figure 2, comprises the steps:
Step 201:RNC by its with the user face data frame of the Iub interface of Node B or control frame to base station transmission UE context.
Described UE context carries HS-DSCH ability rating and the E-DCH ability rating information of H-RNTI, E-RNTI and the UE of UE.User plane protocol is that (frameprotocol FP), comprises two types frame format, Frame and control frame to the FP agreement on the Iub interface.Preferably, described user face data frame or control frame are HS-DSCH data frame type 3 (HS-DSCH DATA FRAMETYPE 3), and described UE context is carried in the extension field of HS-DSCH DATA FRAME TYPE 3.Here HS-DSCH DATA FRAME TYPE3 that mentions and the following HS-DSCH DATA FRAME TYPE2 that will mention are a kind of Frames of Iub user's face.Wherein HS-DSCH DATA FRAME TYPE2 is the CELL_FACH status service; HS-DSCHDATA FRAME TYPE3 is the CELL_PCH status service.
For certain UE, if Serving RNC (Serving Radio Network Control, SRNC) and Drift Radio Network Controller (Drift Radio Network Control, when not being same entity DRNC), step 201 can realize by following two sub-steps:
Step 201a:SRNC passes to DRNC by the FP Frame on the Iur interface or control frame with HS-DSCH and the E-DCH ability rating information of UE.Described FP Frame or control frame are HS-DSCH data frame type 2 (HS-DSCH DATA FRAME TYPE 2).
Step 201b:DRNC generates the contextual information of UE, and described UE contextual information comprises E-RNTI and H-RNTI, and the HS-DSCH and the E-DCH ability rating information that are received from SRNC; And with described UE contextual information place on the Iub interface, the FP Frame or the control frame of CELL_PCH state, promptly send the base station among the HS-DSCH DATA FRAME TYPE 3 on the Iub interface.
Here need to prove that E-RNTI and H-RNTI are provided with by DRNC/CRNC, is the entity of DRNC for UE, for the base station then be control RNC (Controlling RadioNetwork Control, CRNC).
Step 202: the base station receives and preserves the contextual information of described UE.Specifically, the H-RNTI of described UE and the incidence relation of E-RNTI are preserved in the base station, and the HS-DSCH of UE and E-DCH ability rating information.
Preferably, (Connection Frame Number, CFN) moment corresponding activates described UE contextual information to the Connection Frame Number that carry in HS-DSCH DATA FRAME TYPE3 the base station.
The described method of present embodiment is equally applicable in the E-DCH of CELL FACH enhanced situation and HS-DSCH transmission, and just HS-DSCH DATA FRAME TYPE 3 wherein need replace with HS-DSCH DATA FRAME TYPE 2.
The embodiment of the invention two has proposed for the E-DCH of CELL_FACH enhanced situation and HS-DSCH transmission, and the base station obtains the contextual method of UE, as shown in Figure 3, comprises the steps:
The state that step 301:RNC detects UE shifts, owing to need the HS-DSCH that uses different under the different states with E-DCH ability rating information possibility, then the contextual informations such as ability rating information of HS-DSCH and E-DCH need change, RNC sends the UE contextual information by the user face data frame (referring to HS-DSCH DATA FRAME TYPE 2 here) of Iub interface to the base station, described UE contextual information carries HS-DSCH and the E-DCH ability rating information of this UE, and also carry activationary time point (Activation time) information in the described UE contextual information, described activationary time dot information is used for indicating target CFN.
For certain UE, when SRNC and DRNC entity were not same entities, step 301 can realize by following two sub-steps:
Step 301a:SRNC passes to DRNC by the FP frame on the Iur interface (HS-DSCH DATA FRAMETYPE 2) with the HS-DSCH of UE and E-DCH ability rating information and activationary time dot information.
Step 301b:DRNC generates the contextual information of UE, and described UE contextual information comprises E-RNTI and H-RNTI, and the HS-DSCH and the E-DCH ability rating information that are received from SRNC; And with described contextual information place on the Iub interface, HS-DSCHFP frame (the HS-DSCH DATA FRAME TYPE 2 on the Iub interface) under the CELL_FACH state, send the base station to.
Here need to prove that E-RNTI and H-RNTI are provided with by DRNC/CRNC, is that DRNC is CRNC for the base station for UE.
Step 302: the activationary time that carry according to the FP frame that receives the base station UE contextual information of naming a person for a particular job is updated to the UE contextual information that carries in the described FP frame.Described UE contextual information comprises, the H-RNTI of UE and E-RNTI incidence relation, HS-DSCH and E-DCH ability rating information.That is to say, the base station at indicated activationary time point constantly, according to H-RNTI and the E-RNTI incidence relation of the UE that receives, and HS-DSCH and E-DCH ability rating information are carried out HS-DSSCH and E-DCH transmission.Described UE contextual information can further include Radio Resource control (Radio Resource Control, RRC) state information, the power-frequency information of UE, the Synchronization Status Message of UE, the DRX state information of UE etc. of UE.
The described method of present embodiment goes for the E-DCH and the HS-DSCH transmission of CELL_PCH enhanced situation equally.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. method that makes the base station obtain the user equipment (UE) contextual information, it is characterized in that, the UE contextual information comprises the high-speed downlink shared channel HS-DSCH ability rating information of UE and strengthens dedicated channel E-DCH ability rating information, and the HS-DSCH Radio Network Temporary Identifier H-RNTI of UE and E-DCH Radio Network Temporary Identifier E-RNTI; This method comprises the steps:
RNC by its with the HS-DSCH Frame of the Iub interface of base station or control frame to base station transmission UE contextual information;
The base station receives and preserves described UE contextual information.
2. method according to claim 1 is characterized in that, HS-DSCH Frame or the control frame of described RNC by the Iub interface of itself and base station sends the UE context to the base station and be:
RNC is added on described UE context in the extension field of the Frame of Iub interface or control frame, and described Frame or control frame are sent to the base station.
3. method according to claim 2 is characterized in that, the Frame of described Iub interface or control frame are HS-DSCH data frame type 3.
4. method according to claim 3 is characterized in that, the contextual information that described base station received and preserved described UE is: the Connection Frame Number CFN that carry in described HS-DSCH data frame type 3 base station activates described UE contextual information configuration constantly.
5. according to each described method of claim 1 to 4, it is characterized in that HS-DSCH Frame or the control frame of described RNC by the Iub interface of itself and base station sends the contextual step of UE to the base station and comprise:
Frame or the control frame of Serving RNC by the Iur interface passes to Drift Radio Network Controller with HS-DSCH and the E-DCH ability rating information of UE;
Drift Radio Network Controller generates the contextual information of UE, and described UE contextual information comprises E-RNTI and H-RNTI, and the HS-DSCH and the E-DCH ability rating information that are received from Serving RNC; Drift Radio Network Controller places the Frame of Iub interface or control frame to send the base station to described UE contextual information.
6. method that makes the base station obtain the user equipment (UE) contextual information, it is characterized in that, the UE contextual information comprises the high-speed downlink shared channel HS-DSCH ability rating information of UE and strengthens dedicated channel E-DCH ability rating information, the HS-DSCH Radio Network Temporary Identifier H-RNTI of UE and E-DCH Radio Network Temporary Identifier E-RNTI, and the activationary time dot information that is used for indicating target Connection Frame Number CFN; This method comprises the steps:
The state that RNC detects UE shifts, and RNC sends the UE contextual information by the user face data frame or the control frame of Iub interface to the base station;
The activationary time point that user face data frame that the base station basis receives or control frame carry is updated to the UE contextual information that carries in the described user data face Frame with the UE contextual information of self preserving.
7. method according to claim 6 is characterized in that, described user face data frame or control frame are HS-DSCH data frame type 2.
8. according to claim 6 or 7 described methods, it is characterized in that described RNC comprises to the step that the base station sends the UE contextual information by the user face data frame or the control frame of Iub interface:
Serving RNC passes to Drift Radio Network Controller by the HS-DSCH data frame type 2 on the Iur interface with the HS-DSCH of UE and E-DCH ability rating information and activationary time dot information;
Drift Radio Network Controller generates the contextual information of UE, and described UE contextual information comprises E-RNTI and H-RNTI, is received from HS-DSCH and the E-DCH ability rating information and the activationary time dot information of Serving RNC; And place the HS-DSCH data frame type 2 on the Iub interface to send the base station to the described contextual information.
9. a system that makes the base station obtain the UE contextual information comprises RNC and base station, it is characterized in that,
Described RNC is used to generate the contextual information of UE, described UE contextual information comprises the high-speed downlink shared channel HS-DSCH ability rating of UE and strengthens dedicated channel E-DCH ability rating information, and the HS-DSCH Radio Network Temporary Identifier H-RNTI of UE and E-DCH Radio Network Temporary Identifier E-RNTI, and be used to the activationary time dot information of indicating described UE contextual information to come into force; RNC by its with the HS-DSCH Frame of the Iub interface of base station or control frame to base station transmission UE contextual information;
The base station is used to receive described UE contextual information, and activates described UE contextual information in the moment of described activationary time dot information appointment.
10. system according to claim 9 is characterized in that, described activationary time dot information is a Connection Frame Number.
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CN107105460A (en) * 2011-09-12 2017-08-29 诺基亚技术有限公司 For mobile terminal connection mode mobility method and equipment
CN107666692A (en) * 2016-07-29 2018-02-06 电信科学技术研究院 A kind of state transition method, user terminal and base station
WO2019024696A1 (en) * 2017-08-04 2019-02-07 电信科学技术研究院有限公司 Method, apparatus and device for determining size of transmission block

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CN101330452A (en) * 2007-06-19 2008-12-24 中兴通讯股份有限公司 Method for indicating customer equipment capability under non-CELL_DCK state
CN101394607A (en) * 2008-11-07 2009-03-25 广州市新邮通信设备有限公司 Method for notifying context information of user equipment

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CN107105460A (en) * 2011-09-12 2017-08-29 诺基亚技术有限公司 For mobile terminal connection mode mobility method and equipment
CN107666692A (en) * 2016-07-29 2018-02-06 电信科学技术研究院 A kind of state transition method, user terminal and base station
CN107666692B (en) * 2016-07-29 2019-09-17 电信科学技术研究院 A kind of state transition method, user terminal and base station
WO2019024696A1 (en) * 2017-08-04 2019-02-07 电信科学技术研究院有限公司 Method, apparatus and device for determining size of transmission block
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