CN100463558C - A method to realize quick hard hand-over among cells by mobile terminal - Google Patents
A method to realize quick hard hand-over among cells by mobile terminal Download PDFInfo
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- CN100463558C CN100463558C CNB2005101158526A CN200510115852A CN100463558C CN 100463558 C CN100463558 C CN 100463558C CN B2005101158526 A CNB2005101158526 A CN B2005101158526A CN 200510115852 A CN200510115852 A CN 200510115852A CN 100463558 C CN100463558 C CN 100463558C
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Abstract
The disclosed realization method for fast direct switching of mobile terminal comprises: after conducting, BS acquires basic configuration information of subzone; when activating the terminal on some subzone, BS records the wireless resource control text information of the activated terminal as the configuration information for the subzone; when the terminal moves into target subzone, the latter builds the wireless resource control text information according to recorded information, and builds the mapping relation between information and physical channel; the source subzone notifies the terminal and target subzone for direct switching; the terminal synchronizes with target subzone. This invention cuts response time, and reduces signaling loading.
Description
Technical field
The present invention relates in a kind of wireless communication system, the method that portable terminal switches in the minizone relates in particular to the implementation method of a kind of portable terminal at the quick direct-cut operation in minizone.
Background technology
In the mobile communication system, the user can move between different districts, in order to keep the business of use, as calling out, needs by handoff procedure, with the disconnection that is connected of terminal and current area, and sets up in new sub-district being connected of terminal and new sub-district.
Existing soft hand-off, because signaling and overhead are big, equipment is realized complicated, and the gain that brings is limited.Along with the continuous development of mobile communication system, soft handover is in progressively by the alternative situation of other technologies (as direct-cut operation).
If but all adopted the switching mode of direct-cut operation, also just mean so: the frequency of direct-cut operation and frequency takes place could exceed much than existing systems.So press for direct-cut operation is optimized, to improve the response speed of direct-cut operation, alleviates the signaling traffic load of air interface, guarantee under the situation of higher frequency generation direct-cut operation, the subjective feeling of user's communication or use business is still fine.
Summary of the invention
Technical problem to be solved by this invention is to provide the implementation method of a kind of portable terminal at the quick direct-cut operation in minizone, optimize the direct-cut operation processing procedure, shorten the response speed of direct-cut operation, and reduce air interface signaling and load, with suitable, hard handover approach makes the processing of network and terminal succinct, targetedly efficiently, and reaches the optimum of network performance.
For addressing the above problem, the invention provides the implementation method of a kind of portable terminal at the quick direct-cut operation in minizone, comprise the steps:
After the base station powers on, obtain the sub-district basic configuration information, comprise the cell information of each sub-district under the base station, and all candidates of each sub-district are switched neighboring BS information;
When terminal activates successfully in a sub-district, the base station is recorded as the Radio Resource control contextual information of this activated terminals the activated terminals configuration information of this sub-district, and switch neighboring BS information according to the pairing candidate in this sub-district, the Radio Resource control contextual information of this activated terminals is recorded as the activated terminals configuration information that all candidates corresponding with this sub-district are switched the adjacent area;
When this terminal when the cell-of-origin moves to Target cell, Target cell switches one of adjacent area as the candidate of cell-of-origin, Radio Resource control contextual information according to this activated terminals that writes down carries out the foundation of Radio Resource control contextual information, and the mapping relations of foundation and physical channel;
The cell-of-origin notifies this activated terminals to carry out direct-cut operation, and informs the Target cell of switching;
This activated terminals carries out to Target cell synchronously.
The present invention may further include following steps:
Synchronously after the success, from the cell-of-origin and all candidates except that Target cell of cell-of-origin Radio Resource of switching this activated terminals of deletion the adjacent area control context information;
Pairing candidate is switched neighboring BS information according to Target cell, and the base station is recorded as the activated terminals configuration information that all candidates corresponding with Target cell are switched the adjacent area with the Radio Resource control contextual information of this activated terminals.
Perhaps, may further include following steps:
Synchronously after the success, from the cell-of-origin and all candidates of cell-of-origin switch the Radio Resource control context information of this activated terminals of deletion the adjacent area;
The base station is recorded as the Radio Resource control contextual information of this activated terminals the activated terminals configuration information of this Target cell;
Pairing candidate is switched neighboring BS information according to Target cell, and the base station is recorded as the activated terminals configuration information that all candidates corresponding with Target cell are switched the adjacent area with the Radio Resource control contextual information of this activated terminals.
The present invention is by synchronous configuration information between the direct-cut operation candidate base station, make these base stations all can before direct-cut operation takes place, obtain enough parameter configuration, avoid the resource of base station side inside to prepare and set up process, optimize the direct-cut operation processing procedure, thereby have following tangible technique effect:
Existing direct-cut operation is handled, and in direct-cut operation, needs to wait for the Target cell preparation and set up the terminal resource requirement that spended time is long; And the terminal resource requirement has just been prepared and set up to Target cell in this technical scheme before direct-cut operation, thereby shorten the response speed of direct-cut operation;
Existing direct-cut operation is handled, and in direct-cut operation, needs the switching command of air interface and switches the Signalling exchange of finishing; And the air interface process in this technical scheme is reduced to triggering switching and air interface synchronizing process, so reduce the air interface signaling load;
By the optimization of direct-cut operation, with suitable, hard handover approach makes the processing of network and terminal succinct, targetedly efficiently, and reaches the optimum of network performance.
Description of drawings
Fig. 1 is according to quick direct-cut operation implementation method flow chart of the present invention;
Fig. 2 is according to the described quick direct-cut operation realization flow figure based on quick base station shifting candidate technologies of the embodiment of the invention
Embodiment
As shown in Figure 1, for according to quick direct-cut operation implementation method flow chart of the present invention, at first, after the base station powers on, obtain the sub-district basic configuration information, comprise the cell information of each sub-district under the base station, and all candidates of each sub-district are switched neighboring BS information (step 101); Then, when terminal activated successfully in a sub-district, the base station was recorded as the Radio Resource control contextual information of this activated terminals the activated terminals configuration information (step 102) of this sub-district; Pairing candidate is switched neighboring BS information according to each sub-district, and the base station is recorded as the activated terminals configuration information (step 103) that all candidates corresponding with this sub-district are switched the adjacent area with the Radio Resource control contextual information of this activated terminals; When this terminal when the cell-of-origin moves to Target cell, Target cell switches one of adjacent area as the candidate of cell-of-origin, Radio Resource control contextual information according to this activated terminals that writes down, carry out the foundation of Radio Resource control contextual information, and the mapping relations (step 104) of foundation and physical channel; The cell-of-origin notifies this activated terminals to carry out direct-cut operation, and informs the Target cell (step 105) of switching; This activated terminals carries out (step 106) synchronously to Target cell.
Wherein, the sub-district basic configuration information comprises:
(1) cell information of each sub-district under the base station comprises cell identification number, frequency, scrambler;
(2) for each sub-district, all candidate's direct-cut operation Neighboring Cell List that this sub-district is possible, and the cell information of these Lin Qu comprise cell identification number, frequency, scrambler.
The activated terminals configuration information comprises:
(1) for each sub-district, the Radio Resource of all activated terminals control contextual information comprises signaling bear information and service bearer information that terminal is used under this sub-district;
(2),, comprise signaling bear information and service bearer information that terminal is used if may switch the Radio Resource control contextual information of the activated terminals that enters as candidate's direct-cut operation adjacent area for each sub-district.
Wherein, all candidates of described each sub-district are switched neighboring BS information, can switch the Neighboring Cell List form with the candidate, determine when the network planning, and are stored in base station side.
When the initial network planning, according to the position and the covering relation of each sub-district, can determine that in cell level the candidate of each sub-district is switched the adjacent area, and can tabular form with this information stores in base station side.
Although the information of each sub-district itself, and switch the various plot planning information such as corresponding relation of adjacent area with its all candidates, can be with various forms and format record and storage, but a kind of relevant therewith technology is arranged at present, be called: quick base station shifting candidate (Fast Handover eNodeB Candidates, FHBC).FHBC can be understood as a kind of listing file (Profile) that records sub-district basic configuration information and activated terminals configuration information, is placed on base station side.It is that base unit is organized data with the sub-district, for each sub-district, records:
(1) configuration information of this sub-district self, cell identification number, frequency, scrambler;
(2) neighbor list of this sub-district includes several adjacent cells, the configuration of adjacent cells (cell identification number, frequency, scrambler);
(3) Radio Resource of all activated terminals in this sub-district control contextual information, sub-district are described, (just this sub-district is as Serving cell identity and following (4) difference);
(4) in the adjacent area of this sub-district (also may be other sub-districts simultaneously) (at this moment, it is as facing district's identity, just non-service cell identity), what comprise may enter, but does not also switch the Radio Resource control contextual information of the terminal that enters.
In addition, the FHBC technology also comprises the generation of FHBC, safeguard, and management, the Radio Resource control contextual information that be included in synchronization among base stations terminal relevant with process utilizes the Radio Resource control contextual information of the terminal configuration information or the like that gets parms.
Below, be example with FHBC, be described in further detail realization of the present invention.
According to embodiments of the invention, can realize quick direct-cut operation based on the FHBC technology, by synchronous FHBC information between the direct-cut operation candidate base station, make these base stations all can before direct-cut operation takes place, obtain enough parameter configuration, avoid the resource preparation of base station side inside and set up process, greatly shorten the response speed of direct-cut operation and the Signalling exchange that saving is eated dishes without rice or wine.
Embodiments of the invention can may further comprise the steps:
The first step: definition FHBC.FHBC is placed on base station side, is formed by sub-district basic configuration information and activated terminals configuration information.
Second step: FHBC initialization.After the base station powers on, obtain the sub-district basic configuration information.Know the cell information of each sub-district under the base station, comprise cell identification number, frequency, scrambler is inserted it in cell information of sub-district basic configuration information of FHBC; Know all possible candidate's direct-cut operation neighboring BS information of each sub-district under the base station, comprise cell identification number, frequency, scrambler is inserted these candidate's direct-cut operation neighboring BS information in sub-district candidate's direct-cut operation Neighboring Cell List of sub-district basic configuration information of FHBC
The 3rd step:, the Radio Resource of this activated terminals is controlled contextual information be recorded in this sub-district activated terminals configuration information of FHBC when terminal activates successfully in a sub-district; Simultaneously, the Radio Resource of this activated terminals is controlled the contextual information synchronous recording in each candidate's direct-cut operation adjacent area activated terminals configuration information of this sub-district of FHBC.
The 4th step: this activated terminals moves, and is moved under the coverage of Target cell by the coverage of cell-of-origin.
The 5th step: because Target cell has passed through candidate's direct-cut operation adjacent area activated terminals configuration information of FHBC in advance, obtain the Radio Resource control contextual information of this activated terminals, so Target cell directly carries out the foundation of Radio Resource control contextual information, and set up the mapping relations of Radio Resource control contextual information to physical channel.
The 6th step: the cell-of-origin notifies this activated terminals to carry out direct-cut operation, informs the Target cell of switching.
The 7th step: this activated terminals carries out synchronously to Target cell, synchronous on successful switch just.
The 8th step: behind the handover success, the Radio Resource control contextual information of this activated terminals of deletion in the cell-of-origin of writing down from FHBC, all candidates of this cell-of-origin of writing down from FHBC are switched the Radio Resource control contextual information of this activated terminals of deletion in the adjacent area.
The 9th step: behind the handover success, Target cell becomes Serving cell, the Radio Resource of this activated terminals control contextual information is recorded in this Serving cell of FHBC, and all candidates that the Radio Resource control contextual information of this activated terminals are recorded in this Serving cell of FHBC are switched in the adjacent area.
For second step, further,, occur to increase sub-district or deletion sub-district or sub-district and close on sub-district basic configuration information that configuration relation the revises situation that changes if after the base station powers on, FHBC will be reinitialized so.
As shown in Figure 2, be according to the described quick direct-cut operation realization flow schematic diagram of the embodiment of the invention based on quick base station shifting candidate.
Set scene: overlay network is by sub-district 1, sub-district 2, and sub-district 3, sub-district 4 is formed.Terminal 1 is activated in sub-district 2, moves to sub-district 3.
Step 110:FHBC initialization, its content is as shown in table 1:
Table 1
| Cell information | The candidate handover cell tabulation | The Radio Resource control contextual information of activated terminals | |
| Sub-district 1 | Cell identification number 1, frequency 988, scrambler 58 | Sub-district 2 | Do not have at present |
| Sub-district 2 | Cell identification number 1, frequency 988, scrambler 58 | 1 sub-district 3, sub-district | Do not have at present |
| Sub-district 3 | Cell identification number 1, frequency 988, scrambler 58 | 2 sub-districts 4, sub-district | Do not have at present |
| Sub-district 4 | Cell identification number 1, frequency 988, scrambler 58 | Sub-district 3 | Do not have at present |
Step 120: terminal 1 is activated in sub-district 2, and FHBC upgrades.The Radio Resource control contextual information of record terminal 1 in the Radio Resource control contextual information of the activated terminals of the sub-district 2 of FHBC; In all handover candidate cells of the sub-district 2 of FHBC, the Radio Resource control contextual information of the contextual information of the Radio Resource of the activated terminals in sub-district 1 and sub-district 3 control just record terminal 1.FHBC after the renewal is as shown in table 2:
Table 2
| Cell information | The candidate handover cell tabulation | The Radio Resource control contextual information of activated terminals | |
| Sub-district 1 | Cell identification number 1, frequency 988, scrambler 58 | Sub-district 2 | Terminal 1: signaling bear 3.4k; Service bearer AMR12.2k |
| Sub-district 2 | Cell identification number 1, frequency 988, scrambler 58 | 1 sub-district 3, sub-district | Terminal 1: signaling bear 3.4k; Service bearer AMR12.2k |
| Sub-district 3 | Cell identification number 1, frequency 988, scrambler 58 | 2 sub-districts 4, sub-district | Terminal 1: signaling bear 3.4k; Service bearer AMR12.2k |
| Sub-district 4 | Cell identification number 1, frequency 988, scrambler 58 | Sub-district 3 | Do not have at present |
Step 130: terminal 1 moves, and is moved under the coverage of sub-district 3 by the coverage of sub-district 2;
Step 140: according to the Radio Resource control contextual information of terminal 1 in the sub-district 3 of writing down among the FHBC, in sub-district 3, directly carry out the foundation of Radio Resource control contextual information, and set up the mapping relations of Radio Resource control contextual information to physical channel for terminal 1;
Step 150: sub-district 2 notice terminals 1 are carried out direct-cut operation, and Target cell is sub-district 3;
Step 160: terminal 1 is synchronous to sub-district 3, also promptly successfully switches on synchronously;
Step 170: behind the handover success, sub-district 3 alternative cell 2 and become the Serving cell of terminal 1, corresponding renewal FHBC record.Radio Resource control contextual information deletion with terminal 1 in the sub-district 1 of writing down among the FHBC, will be in the new handover candidate cells of the sub-district 3 of FHBC, the Radio Resource control contextual information of the contextual information of the Radio Resource of the activated terminals in sub-district 2 and sub-district 4 control just record terminal 1.FHBC after the renewal is as shown in table 3:
Table 3
| Cell information | The candidate handover cell tabulation | The Radio Resource control contextual information of activated terminals | |
| Sub-district 1 | Cell identification number 1, frequency 988, scrambler 58 | Sub-district 2 | Do not have at present |
| Sub-district 2 | Cell identification number 1, frequency 988, scrambler 58 | 1 sub-district 3, sub-district | Terminal 1: signaling bear 3.4k; Service bearer AMR12.2k |
| Sub-district 3 | Cell identification number 1, frequency 988, scrambler 58 | 2 sub-districts 4, sub-district | Terminal 1: signaling bear 3.4k; Service bearer AMR12.2k |
| Sub-district 4 | Cell identification number 1, frequency 988, scrambler 58 | Sub-district 3 | Terminal 1: signaling bear 3.4k; Service bearer AMR12.2k |
Claims (9)
1, a kind of portable terminal is characterized in that in the implementation method of the quick direct-cut operation in minizone, comprises the steps:
After the base station powers on, obtain the sub-district basic configuration information, comprise the cell information of each sub-district under the base station, and all candidates of each sub-district correspondence are switched neighboring BS information;
When terminal activates successfully in a sub-district, the base station is recorded as the Radio Resource control contextual information of this activated terminals the activated terminals configuration information of this sub-district, and switch neighboring BS information according to the pairing candidate in this sub-district, the Radio Resource control contextual information of this activated terminals is recorded as the activated terminals configuration information that all candidates corresponding with this sub-district are switched the adjacent area;
When this terminal when the cell-of-origin moves to Target cell, Target cell switches one of adjacent area as the candidate of cell-of-origin, Radio Resource control contextual information according to this activated terminals that writes down carries out the foundation of Radio Resource control contextual information, and the mapping relations of foundation and physical channel;
The cell-of-origin notifies this activated terminals to carry out direct-cut operation, and informs the Target cell of switching;
This activated terminals carries out to Target cell synchronously.
2, the method for claim 1 is characterized in that, further comprises the steps:
Synchronously after the success, from the cell-of-origin and all candidates except that Target cell of cell-of-origin Radio Resource of switching this activated terminals of deletion the adjacent area control context information;
Pairing candidate is switched neighboring BS information according to Target cell, and the base station is recorded as the activated terminals configuration information that all candidates corresponding with Target cell are switched the adjacent area with the Radio Resource control contextual information of this activated terminals.
3, the method for claim 1 is characterized in that, further comprises the steps:
Synchronously after the success, from the cell-of-origin and all candidates of cell-of-origin switch the Radio Resource control context information of this activated terminals of deletion the adjacent area;
The base station is recorded as the Radio Resource control contextual information of this activated terminals the activated terminals configuration information of this Target cell;
Pairing candidate is switched neighboring BS information according to Target cell, and the base station is recorded as the activated terminals configuration information that all candidates corresponding with Target cell are switched the adjacent area with the Radio Resource control contextual information of this activated terminals.
4, the method for claim 1 is characterized in that, described cell information comprises: cell identification number, frequency, scrambler.
5, the method for claim 1 is characterized in that, all candidates of described each sub-district are switched neighboring BS information, comprising: cell identification number, frequency, scrambler.
6, the method for claim 1 is characterized in that, the Radio Resource control contextual information of described activated terminals comprises: signaling bear information and service bearer information that terminal is used.
7, the method for claim 1 is characterized in that, described sub-district basic configuration information is determined when the network planning, and is stored in base station side.
8, the method for claim 1 is characterized in that, described sub-district basic configuration information is determined when the network planning, and based on quick base station shifting candidate, is stored in base station side.
9, method as claimed in claim 8 is characterized in that, after described base station powers on, obtains the step of sub-district basic configuration information, is to be undertaken by initialization predefined and the quick base station shifting candidate that is stored in base station side.
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| CNB2005101158526A CN100463558C (en) | 2005-11-10 | 2005-11-10 | A method to realize quick hard hand-over among cells by mobile terminal |
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| CNB2005101158526A CN100463558C (en) | 2005-11-10 | 2005-11-10 | A method to realize quick hard hand-over among cells by mobile terminal |
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| CN100463558C true CN100463558C (en) | 2009-02-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI493952B (en) | 2006-12-27 | 2015-07-21 | Signal Trust For Wireless Innovation | Method and apparatus for base station self-configuration |
| CN101754295B (en) * | 2008-12-10 | 2012-07-25 | 大唐移动通信设备有限公司 | Method, system and terminal for monitoring paging indicator and paging channel |
| CN101765056A (en) * | 2008-12-23 | 2010-06-30 | 中兴通讯股份有限公司 | Neighboring-area message routing method and message routing method |
| CN102271372A (en) * | 2010-06-01 | 2011-12-07 | 中兴通讯股份有限公司 | Method for quickly switching base station based on Keep-alive mechanism and base station thereof |
| CN102098708B (en) * | 2011-01-30 | 2013-02-20 | 大唐移动通信设备有限公司 | Method and equipment for configuring neighbor cells for mobile base station |
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| US6055427A (en) * | 1996-07-18 | 2000-04-25 | Nokia Telecommunications Oy | Hard handoff and a radio system |
| CN1350758A (en) * | 1999-04-01 | 2002-05-22 | 北方电讯网络有限公司 | Methods and systems for facilitating a multi-mode multi-pilot hard handoff |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6055427A (en) * | 1996-07-18 | 2000-04-25 | Nokia Telecommunications Oy | Hard handoff and a radio system |
| CN1350758A (en) * | 1999-04-01 | 2002-05-22 | 北方电讯网络有限公司 | Methods and systems for facilitating a multi-mode multi-pilot hard handoff |
Non-Patent Citations (2)
| Title |
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| Radio Resource Control (RRC),ProtocolSpecification(Release 4). 3GPP.3GPP TS 25.331. 2002 |
| Radio Resource Control (RRC),ProtocolSpecification(Release 4). 3GPP.3GPP TS 25.331. 2002 * |
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