CN101272596A - Method for reinforcing up link and switching between wireless network controllers - Google Patents
Method for reinforcing up link and switching between wireless network controllers Download PDFInfo
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- CN101272596A CN101272596A CNA2007100736195A CN200710073619A CN101272596A CN 101272596 A CN101272596 A CN 101272596A CN A2007100736195 A CNA2007100736195 A CN A2007100736195A CN 200710073619 A CN200710073619 A CN 200710073619A CN 101272596 A CN101272596 A CN 101272596A
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Abstract
The invention discloses a method for a strengthened uplink to realize switching between wireless network controllers, which is used in a time division synchronous code division multiple access system or a time division code division multiple access system. The method comprises the following steps: a drift wireless network controller provides strengthened uplink service capability information of a cell controlled by the drift wireless network controller and an adjacent cell for a service wireless network controller through an Iur interface signaling; the service wireless network controller obtains the information of strengthened uplink service capability of the adjacent cell to realize switching control of the strengthened uplink when a target cell at a terminal is located at the drift wireless network controller. By applying the drift wireless network controller to report the strengthened uplink service capability of the controller cell and the adjacent cell to the service wireless network controller, the service wireless network controller can thoroughly know the strengthened uplink service capability of the adjacent cell and can use the information for determining the terminal switching, thus avoiding failure of switching E-DCH cells due to incomprehension of the service capability of the target cell.
Description
Technical field
The present invention relates to realize in (synchronously) code division multiple access system of a kind of time-division the method for switching between RNC (radio network controller), relate in particular to the method for switching between a kind of enhanced uplink realization RNC.
Background technology
3GPP (3rd Generation Partnership Project, third generation partner program) the enhancing uplink service of Zhi Dinging is commonly referred to as HSUPA (High Speed Uplink Packet Access, high speed uplink packet inserts), be called E-DCH (enhancing special uplink channel) business again.HSUPA is by the technology of application of advanced, as HARQ (mixing automatic repeat requests), short TTI (Transmission Time Interval), high order modulation, NodeB scheduling, it is being improved aspect time delay, peak rate, the throughput than traditional dedicated channel and shared channel.
TD-SCDMA (TDS-CDMA system) and TD-CDMA (time code division multiple access system) are 2 kinds of TDD (time division duplex) communication systems among the 3GPP UMTS (Universal Mobile Telecommunications System), and this two big system has all finished the standardization effort of HSUPA technology at present.Use the UE (terminal) of HSUPA business to be operated in CELL_DCH (dedicated channel status) state.Increased a kind of transmission channel E-DCII (enhancing special uplink channel) among the HSUPA newly, enhanced uplink data is carried on this transmission channel, and the TTI of E-DCH (Transmission Time Interval) is 5ms.
The physical channel relevant with E-DCH has:
E-AGCH channel (E-DCH absolute grant channel) is a control channel, is used for Node B (base station) transmission authorization message;
E-PUCH (the E-DCH uplink physical channel claims to strengthen uplink physical channel again) is a Traffic Channel, is used for the coded combination transmission channel of UE (User Equipment, user terminal) carrying E-DCH type, and the information that auxiliary dispatching is correlated with is also in this channel;
(E-DCH inserts ascending control channel to E-RUCCH at random, be that enhanced uplink inserts ascending control channel at random), be physical layer control channel, being used for UE is not having under the situation of authorizing, the relevant information of transmission auxiliary dispatching, E-RUCCH uses the Physical Random Access Channel resource;
E-HICH (E-DCH hybrid automatic repeat request indication channel) is a physical layer control channel, is used for Node B and carries HARQ (mixing automatic repeat requests) indication information.
Currently, UE is called the E-DCH Serving cell for providing the sub-district of HSUPA business, because the mobility of UE, the E-DCH Serving cell of UE may change in a connection procedure, as shown in Figure 1, UE in the area of coverage intra-area communication of SRNC (service wireless network controller), moves in the coverage of some DRNC (floating radio network controller) at the beginning gradually.For the Packet Service that carries out that guarantees that UE can be continuous, network side SRNC need switch to the better sub-district of another signal (that is Target cell) according to the E-DCH the Radio Link whether metrical information of UE periodic feedback makes a strategic decision UE.
Handoff procedure is controlled by the SRNC of UE.The prerequisite that the E-DCH Serving cell switches is that Target cell must be supported the E-DCH business.When Target cell just in time is positioned at following time of SRNC, the audit information of the NodeB that SRNC controls by it (base station) can know whether this sub-district has the E-DCH ability, promptly strengthen the ability of uplink service, can finish the switching of E-DCH link from the cell-of-origin to the Target cell of UE so smoothly.Handoff procedure is, the SRNC at first NodeB at place, notification target sub-district is that UE creates a wireless links at Target cell, and the relevant resource migration of E-DCH to this Radio Link, require UE to switch to the Radio Link of Target cell by the air interface switching command then, UE just can continue the E-DCH business after Radio Link is finished in the establishment of new sub-district.
If Target cell is not under the control of SRNC, and under the control of some DRNC, whether Serving RNC can't be made a strategic decision can switch for this UE carries out the E-DCH sub-district, because it does not also know whether Target cell has the E-DCH ability, in this case, SRNC can only carry out the E-DCH channel to the switching between DPCH (DPCH) or the USCH (Uplink Shared Channel) for UE, like this, UE can only carry out Packet Service by conventional channel at Target cell, this does not also meet business demand and QoS (service quality) attribute of UE, especially when Target cell is supported the E-DCH ability really, obviously not an effective switching mode.
Summary of the invention
The technical problem to be solved in the present invention provides the method for switching between a kind of TDD enhanced uplink realization RNC of system, and switch the sub-district of avoiding finishing E-DCH owing to do not understand the professional ability of Target cell.
In order to solve the problems of the technologies described above, method provided by the invention is as follows:
The method of switching between a kind of enhanced uplink realization radio network controller is applied to comprise in TDS-CDMA system or the time code division multiple access system:
Floating radio network controller with its sub-district of controlling and or the enhancing uplink service ability information of abutting subdistrict offer service wireless network controller by the Iur interface signaling;
Service wireless network controller obtains the enhancing uplink service ability information of abutting subdistrict, the switching controls the when Target cell that is used for UE is positioned at floating radio network controller.
Described floating radio network controller comprises for the enhancing uplink service ability information that service wireless network controller provides: whether cell ID and this sub-district support to strengthen uplink service.
The floating radio network controller of switching controls when described service wireless network controller is positioned at to(for) the Target cell of UE, comprise: if the Target cell support strengthens uplink service, and the current desired service quality of service attribute of UE need strengthen up access and guarantee that service wireless network controller is set up the E-DCH link for this UE at Target cell; Otherwise service wireless network controller is set up ordinary uplink for this UE at Target cell.
The floating radio network controller of switching controls when described service wireless network controller is arranged in to(for) the Target cell of UE further comprises: service wireless network controller obtains adjacent cell signal quality from the measurement reporting message of UE, and strengthens the uplink service ability according to the current service attribute of cell signal quality, UE and sub-district and select the Target cell that is suitable for switching.
The enhancing uplink service ability that described floating radio network controller transmits the sub-district that Indication message controls it by the up signaling in the Radio Network Subsystem Application Part reports service wireless network controller; By in abutting connection with the universal mobile telecommunications system cell information enhancing uplink service ability information of abutting subdistrict being reported service wireless network controller in the Radio Network Subsystem Application Part.
The present invention also provides the method for the enhancing uplink service ability information that a kind of service wireless network controller obtains the sub-district, floating radio network controller with its sub-district of controlling and or the enhancing uplink service ability information of abutting subdistrict offer service wireless network controller by the Iur interface signaling; Service wireless network controller obtains the enhancing uplink service ability information of sub-district by the Iur interface signaling.
The present invention is by being reported the E-DCH ability of jurisdiction district and abutting subdistrict to service wireless network controller by floating radio network controller, make service wireless network controller can fully understand the E-DCH ability of abutting subdistrict, and these information are used for the UE switching controls.When carrying out the UE generation cell change of E-DCH business, the RNC of UE service can be according to the E-DCH ability of Target cell with the E-DCH resource smooth migration of UE to Target cell, guarantee professional QOS and continuity, avoided the situation that to carry out the E-DCH link switchover because service SRNC can't know whether Target cell supports the E-DCH ability.Resource-constrained and can only carry out the UE of common uplink service for the cell-of-origin, during sub-district under switching to floating radio network controller, service wireless network controller also can according to circumstances switch on the E-DCH link for it.The another one usefulness is that when a plurality of cell signal quality were close in the UE metrical information, the sub-district that SRNC can preferentially select to support the E-DCH business was as switching target small area, for UE provides high-quality network service.
Description of drawings
Fig. 1 is a UE moving process schematic diagram;
Fig. 2 is that floating radio network controller of the present invention is to service wireless network controller reporting subdistrict E-DCH ability information schematic diagram;
Fig. 3 is E-DCH link switchover signaling process figure of the present invention.
Embodiment
The invention provides the method that 3GPP TDD system realizes that enhanced uplink is switched between RNC, carry out high speed uplink packet access (HSUPA) business and Serving cell take place changing the user, and Target cell is in service wireless network controller following time, and service wireless network controller is realized according to the Target cell ability information of knowing in advance that the switching of E-DCH Serving cell or sub-district are switched and followed the switching of non-E-DCH link to the E-DCH link.
Be that example is introduced with the TD-SCDMA system below.
DRNC (floating radio network controller) provides the enhancing uplink service ability information of jurisdiction district for SRNC (Serving RNC), strengthening the uplink service ability information can incidentally give SRNC by RNSAP (Radio Network Subsystem Application Part) signaling procedure of Iur interface by DRNC, as utilizing the spare bits of Cell Capability Container TDD LCR cell in the up signaling transmission Indication message (UPLINK SIGNALLING TRANSFERINDICATION) among the RNSAP; DRNC also can it is collected the up access capability information of enhancing (these sub-districts can under other DRNC) of other abutting subdistricts report SRNC by the RNSAP signaling, as can in adjacency universal mobile telecommunications system cell information (Neighbouring UMTS Cell Information) cell, carrying the up access capability information of enhancing of a plurality of abutting subdistricts.As shown in Figure 2.
Table 1 is that Iur interface enhancing uplink service ability information reports content.
Show the content that reports of 1E-DCH ability information
| Information field | Explain |
| Cell ID | Cell identity information |
| The E-DCH ability | 0: do not support E-DCH 1: support E-DCH |
SRNC collects the up access capability information of enhancing of jurisdiction district and abutting subdistrict, wherein by the audit information reporting, the up access capability information of enhancing of the abutting subdistrict under non-SRNC obtains by the Iur interface signaling the up access capability information of the enhancing of jurisdiction district by NodeB.
The relative UE with SRNC of the DRNC here, RNC are the Serving RNC of some UE, may are the DRNC of other UE again.The method of the invention can guarantee that a RNC can obtain the E-DCH ability information of all of its neighbor sub-district.
SRNC is used for the sub-district switching controls of UE with the E-DCH ability information of adjacent sub-district, and SRNC judges that UE comprises in the foundation that Target cell can strengthen uplink service: the Target cell support strengthens uplink service, the current service attribute of UE need strengthen uplink service provides QoS.When SRNC switches in the sub-district of control UE, if the E-DCH business is supported in the sub-district of signal quality the best in the measurement result that UE reports, and the service attribute of UE need strengthen up access and guarantee its QoS, and SRNC will be chosen as this UE and set up the E-DCH link at Target cell so.Such switching comprises that the UE that is in the CELL_DCH state carries out the HSUPA business in the cell-of-origin, and its service attribute is desirably in Target cell and also carries out the HSUPA business; Can comprise that also the UE that is in the CELL_DCH state can only carry out common uplink service in the cell-of-origin because of local resource is limited, but its service attribute need use the up access ability of enhancing guaranteed qos.The previous case is exactly that the E-DCH Serving cell changes; Latter event is that the switching of DPCH (dedicated channel) to the E-DCH channel followed in the sub-district switching.
In addition, SRNC is when carrying out switching judging for UE, and is close if UE measures the signal quality of a plurality of sub-districts that report in the message, and SRNC can be that UE selects suitable switching target small area according to the service attribute of UE and the E-DCH ability of these sub-districts.
The method of the invention can be applied in that the cell-of-origin is positioned at SRNC and the switching of Target cell when being positioned at DRNC; Also can be applied in the switching when all being positioned at DRNC of cell-of-origin and Target cell.
Fig. 3 is according to an embodiment of the present, and cell-of-origin and Target cell are all under the control of DRNC among the figure.SRNC adopts typical 2 step formulas to the configuration of target NodeB in this example, promptly at first sets up Radio Link at Target cell, again by wireless links reconfiguration course with the E-DCH resource distribution to this Radio Link.
301:DRNC when sending up signaling and transmit Indication message (UPLINK SIGNALLINGTRANSFER INDICATION) with the E-DCH ability information that goes up the sub-district.Will send UPLINK SIGNALLING TRANSFER INDICATION message to the SRNC under this UE as long as DRNC receives CCCH (Common Control Channel) message of certain UE of ownership under non-RNC, the main effect of this message is to transmit the signaling of UE on the Common Control Channel of certain sub-district under the DRNC to SRNC.SRNC receives the signaling of UE by this signaling, also stores the E-DCH ability information of this sub-district that DRNC brings.In this way, SRNC can collect the E-DCH ability information of all of its neighbor sub-district at short notice.
302:SRNC carries out the judgement that switch the sub-district according to the metrical information of UE, and SRNC is according to the E-DCH ability of the Target cell of storage and the service attribute of UE determine that UE uses the HSUPA business at Target cell before.Because cell-of-origin and Target cell are under same DRNC, SRNC initiates Radio Link by Iur mouth RNSAP agreement to the DRNC at Target cell place increases message, the wireless resource information that has Target Cell Identifier in this message and require to set up.
303:DRNC creates Radio Link in the sub-district of SRNC appointment.
304: Radio Link is created and is finished.
305:DRNC returns success response, in this response, DRNC can also be included in the Neighbouring UMTS CellInformation cell with the E-DCH ability information of last other abutting subdistrict that it is understood, and makes SRNC can obtain more abutting subdistrict E-DCH ability information.
306:SRNC by wireless links reconfiguration course require DRNC with the E-DCH resource migration of cell-of-origin in Target cell; DRNC communicates by letter with the NodeB of cell-of-origin with the Target cell place respectively by the NBAP signaling, finishes reshuffling of E-DCH resource.
307:SRNC sends switching command by the RRC agreement to UE, and switching command herein is the Radio Resource reconfiguration message, wherein comprises radio link configuration information in the Target cell, transport channel configuration information (comprising the E-DCH configuration) etc.
308:UE rebuilds link at Target cell, and success back UE returns response message to RNC, and begins to carry out the E-DCH business.
Claims (9)
1. the method that enhanced uplink realizes switching between radio network controller is applied to it is characterized in that in TDS-CDMA system or the time code division multiple access system, comprising:
Floating radio network controller with its sub-district of controlling and or the enhancing uplink service ability information of abutting subdistrict offer service wireless network controller by the Iur interface signaling;
Service wireless network controller obtains the enhancing uplink service ability information of abutting subdistrict, the switching controls the when Target cell that is used for terminal is positioned at floating radio network controller.
2. the method for claim 1 is characterized in that, described floating radio network controller comprises for the enhancing uplink service ability information that service wireless network controller provides: whether cell ID and this sub-district support to strengthen uplink service.
3. method as claimed in claim 1 or 2, it is characterized in that, the floating radio network controller of switching controls when described service wireless network controller is positioned at to(for) the Target cell of UE, specifically comprise: if the Target cell support strengthens uplink service, and the current desired service quality of service attribute of UE need strengthen up access and guarantee that service wireless network controller is set up the E-DCH link for this UE at Target cell; Otherwise service wireless network controller is set up ordinary uplink for this UE at Target cell.
4. method as claimed in claim 1 or 2, it is characterized in that, the floating radio network controller of switching controls when described service wireless network controller is arranged in to(for) the Target cell of UE further comprises: service wireless network controller obtains adjacent cell signal quality from the measurement reporting message of UE, and strengthens the uplink service ability according to the current service attribute of cell signal quality, UE and sub-district and select the Target cell that is suitable for switching.
5. method as claimed in claim 3, it is characterized in that, the floating radio network controller of switching controls when described service wireless network controller is arranged in to(for) the Target cell of UE further comprises: service wireless network controller obtains adjacent cell signal quality from the measurement reporting message of UE, and strengthens the uplink service ability according to the current service attribute of cell signal quality, UE and sub-district and select the Target cell that is suitable for switching.
6. method as claimed in claim 1 or 2, it is characterized in that described floating radio network controller transmits Indication message by the up signaling in the Radio Network Subsystem Application Part the up access capability of the enhancing of its sub-district of controlling is reported service wireless network controller; By in abutting connection with the universal mobile telecommunications system cell information the up access capability information of the enhancing of abutting subdistrict being reported service wireless network controller in the Radio Network Subsystem Application Part.
7. a service wireless network controller obtains the method for the enhancing uplink service ability information of sub-district, it is characterized in that, comprising: floating radio network controller with its sub-district of controlling and or the enhancing uplink service ability information of abutting subdistrict offer service wireless network controller by the Iur interface signaling.
8. method as claimed in claim 7 is characterized in that, described floating radio network controller comprises for the enhancing uplink service ability information that service wireless network controller provides: whether cell ID and this sub-district support to strengthen uplink service.
9. as claim 7 or 8 described methods, it is characterized in that described floating radio network controller transmits Indication message by the up signaling in the Radio Network Subsystem Application Part the up access capability of the enhancing of its sub-district of controlling is reported service wireless network controller; By in abutting connection with the universal mobile telecommunications system cell information the up access capability information of the enhancing of abutting subdistrict being reported service wireless network controller in the Radio Network Subsystem Application Part.
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| CNA2007100736195A CN101272596A (en) | 2007-03-20 | 2007-03-20 | Method for reinforcing up link and switching between wireless network controllers |
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| CNA2007100736195A CN101272596A (en) | 2007-03-20 | 2007-03-20 | Method for reinforcing up link and switching between wireless network controllers |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010078728A1 (en) * | 2009-01-12 | 2010-07-15 | 中兴通讯股份有限公司 | Cell capability information notifying method for the lte system |
| CN101931985A (en) * | 2009-06-23 | 2010-12-29 | 华为技术有限公司 | Selecting method of service cell and network side equipment |
| CN102076044A (en) * | 2011-01-19 | 2011-05-25 | 大唐移动通信设备有限公司 | Switching method and equipment |
| CN102130708A (en) * | 2010-01-15 | 2011-07-20 | 华为技术有限公司 | Method for feeding back multicell channel state information and user equipment |
| CN102164414A (en) * | 2011-04-11 | 2011-08-24 | 新邮通信设备有限公司 | Transmission method and device for uplink control information in carrier aggregation system |
| CN102238587A (en) * | 2010-05-05 | 2011-11-09 | 中兴通讯股份有限公司 | Neighboring cell optimization method and mobile communication system |
| CN102281523A (en) * | 2010-06-13 | 2011-12-14 | 中兴通讯股份有限公司 | Radio network controller and neighbouring cell information updating method thereof |
| WO2016082656A1 (en) * | 2014-11-28 | 2016-06-02 | 中兴通讯股份有限公司 | Method and device for mobile terminal to select a resident cell |
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- 2007-03-20 CN CNA2007100736195A patent/CN101272596A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010078728A1 (en) * | 2009-01-12 | 2010-07-15 | 中兴通讯股份有限公司 | Cell capability information notifying method for the lte system |
| CN101931985A (en) * | 2009-06-23 | 2010-12-29 | 华为技术有限公司 | Selecting method of service cell and network side equipment |
| CN102130708B (en) * | 2010-01-15 | 2014-04-30 | 华为技术有限公司 | Method for feeding back multicell channel state information and user equipment |
| CN102130708A (en) * | 2010-01-15 | 2011-07-20 | 华为技术有限公司 | Method for feeding back multicell channel state information and user equipment |
| WO2011085694A1 (en) * | 2010-01-15 | 2011-07-21 | 华为技术有限公司 | Feedback method for multi-cell channel status information and user equipment |
| US8693441B2 (en) | 2010-01-15 | 2014-04-08 | Huawei Technologies Co., Ltd. | Method and user equipment for feeding back multi-cell channel state information |
| CN102238587A (en) * | 2010-05-05 | 2011-11-09 | 中兴通讯股份有限公司 | Neighboring cell optimization method and mobile communication system |
| WO2011137682A1 (en) * | 2010-05-05 | 2011-11-10 | 中兴通讯股份有限公司 | Method and mobile communication system for optimizing neighboring cell |
| US9344928B2 (en) | 2010-05-05 | 2016-05-17 | Zte Corporation | Neighbouring cell optimization method and mobile communication system |
| CN102281523A (en) * | 2010-06-13 | 2011-12-14 | 中兴通讯股份有限公司 | Radio network controller and neighbouring cell information updating method thereof |
| CN102076044B (en) * | 2011-01-19 | 2013-09-11 | 大唐移动通信设备有限公司 | Switching method and equipment |
| CN102076044A (en) * | 2011-01-19 | 2011-05-25 | 大唐移动通信设备有限公司 | Switching method and equipment |
| CN102164414B (en) * | 2011-04-11 | 2014-01-08 | 新邮通信设备有限公司 | Transmission method and device for uplink control information in carrier aggregation system |
| CN102164414A (en) * | 2011-04-11 | 2011-08-24 | 新邮通信设备有限公司 | Transmission method and device for uplink control information in carrier aggregation system |
| WO2016082656A1 (en) * | 2014-11-28 | 2016-06-02 | 中兴通讯股份有限公司 | Method and device for mobile terminal to select a resident cell |
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Application publication date: 20080924 |