CN104080138A - Cell relay switching method and device - Google Patents
Cell relay switching method and device Download PDFInfo
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- CN104080138A CN104080138A CN201310109828.6A CN201310109828A CN104080138A CN 104080138 A CN104080138 A CN 104080138A CN 201310109828 A CN201310109828 A CN 201310109828A CN 104080138 A CN104080138 A CN 104080138A
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Abstract
The invention provides a cell relay switching method and device. The method includes the steps that whether a terminal is in a high-speed moving state or not is judged according to a measurement report reported by the terminal, and if yes, a high-speed radio resource is distributed to the terminal, wherein the high-speed radio resource is a physical channel resource distributed to the high-speed moving terminal; a switching target cell is determined according to the measurement report reported by the terminal, and the target cell is indicated to start the high-speed radio resource and monitor signals of the high-speed radio resource; whether the error rate of the target cell on the high-speed radio resource is lower than a preset error rate or not is judged according to the measurement report, if the error rate of the target cell on the high-speed radio resource is lower than the preset error rate, a wireless link of a current cell is released, and the terminal is switched into the target cell. All cells in the switching process are controlled to distribute high-speed radio resources for terminals in a high-speed moving state, so that the terminals can always run on the same physical channel resource, and therefore relay switching between the cells is achieved.
Description
Technical field
The present invention relates to communication network Zhong community handoff technique, relate in particular to a kind of community relay switching method and device.
Background technology
Global system for mobile communications (Global System of Mobile communication, be called for short GSM) in network, when terminal Cong Yige community moves to another community, need to carry out community switching, the boundary of Er community, the signal that terminal can receive a little less than, easily occur signaling lose.
Prior art small area handoff technique is divided into direct-cut operation, soft handover and baton handover.Wherein direct-cut operation refers in the process of mobile communication, ensureing, under the continual prerequisite of communication, the channel of terminal communication to be transformed into another wireless channel from a wireless channel, changing in the process of wireless channel, the situations such as call drop easily occurs.Soft handover refers to that, when the carrier frequency at pilot channel is identical, the channel between community switches.In soft switching process, terminal and He Xin base station, former base station all keep communication link, only have and set up after stabilized communication in Target cell when terminal, just disconnect and the contacting of former base station.Because soft handover need to take the channel resource of cell-of-origin and Target cell simultaneously, therefore take Target cell resource, overhead is larger.
Baton handover is a kind of improved hard-switching technology, is mainly used in TD-SCDMA network.Compared with soft handover, can overcome while switching the taking of neighbor base station channel resource, can make power system capacity be increased.In baton handover process, between co-frequency cell, the signal of same terminal all will be accepted in the base station of Liang Ge community.Terminal, according to cell-of-origin and Target cell down-going synchronous deviation, calculates the uplink synchronous time of Target cell, and reports to radio network controller, controls Target cell and cell-of-origin and keeps uplink synchronous.That RNC control terminal switches to Target cell from cell-of-origin when meeting certain switching condition.
And in recent years the high-speed railway of China to open mileage more and more longer, the signal covering problem of high ferro is a headachy problem always.In suburban environment, the about 1000-2000 rice of coverage distance of each community, along with the speed of high ferro train is more and more faster, it is shorter and shorter that terminal is passed through the single subdistrict time, switching time in communication process is also shorter and shorter, by 350 kilometers/hour of speed of a motor vehicle, approximately 10-20 left and right second terminal will be passed Yi Ge community, and be about 7-9 second when terminal switch decision (or switch prepare), all there is switch decision hysteresis problem in three kinds of switching modes of prior art, can cause terminal can not be switched to desirable community, cause speech quality variation or call drop.
Summary of the invention
For the above-mentioned defect of conventional art, the embodiment of the present invention provides a kind of community relay switching method and device.
The embodiment of the present invention provides a kind of community relay switching method, comprising:
According to the measurement report of terminal to report, judge that whether described terminal is in high-speed moving state, if be described terminal distribution high speed interface-free resources, described high speed interface-free resources refers to the physical channel resources into the terminal distribution of high-speed mobile;
According to the measurement report of described terminal to report, determine the Target cell of switching, indicate described Target cell to enable described high speed interface-free resources, monitor the signal of described high speed interface-free resources;
Judge that according to described measurement report whether the error rate of described Target cell in described high speed interface-free resources is less than the default error rate, if be less than the wireless link that discharges described current area, switches to described terminal in described Target cell.
In the technical scheme of the present embodiment, baton handover device in community judges the mobile status of terminal according to the measurement report of terminal to report, if terminal is in high-speed moving state, further determine the Target cell that terminal is switched, if terminal is in high-speed moving state, Target cell is community associated under virtual subdistrict, indicating target community is enabled high speed interface-free resources and is monitored the decoded signal on this channel, whether the absolute value that judges the Target cell error rate is greater than the default error rate, if this terminal is switched in Target cell.Because the physical channel resources of terminal is distributed in current area, the physical channel resources of distributing to terminal with Target cell is identical, therefore terminal is positioned at all the time on same channel and communicates transmission before switching and after switching, bottom transmission does not switch, and has reduced the impact that the frequent switching in minizone causes terminal data communication quality.While is mainly to calculate judgement by the community baton handover device of network side for the calculating of the synchronizing process of Target cell, and the high speed interface-free resources of all associated cell of predefine, virtual subdistrict is identical, greatly shorten terminal switch decision duration, GSM network Zhong community baton handover can be completed fast.
Preferably, described according to the measurement report of terminal to report, judge that whether described terminal is in high-speed moving state, if be described terminal distribution high speed interface-free resources step, comprising:
Obtain the access request of described terminal, distribute low speed interface-free resources to access described terminal to accessing community, described low speed interface-free resources refers to the physical channel resources of the terminal distribution moving for low speed;
Obtain the measurement report of described terminal to report, judge that according to described measurement report whether described terminal is in described high-speed moving state;
If described terminal is in described high-speed moving state, terminal to indicate described access community be high speed interface-free resources described in described terminal distribution described in mark.
In the technical scheme of the present embodiment, first baton handover device in community is terminal distribution low speed interface-free resources, in the time terminal being detected in high-speed moving state, if access community distance is longer, terminal needs the regular hour by this access community, in access community, completes the task switching of high speed interface-free resources, while making terminal target approach community, can realize slitless connection, further improve handover success rate.
Preferably, described in obtain the measurement report of described terminal to report, judge that according to described measurement report described terminal whether after described high-speed moving state step, also comprises:
If described terminal is in high-speed moving state, terminal in the time that described fast mobile terminal switches band to community described in mark, indicates high speed interface-free resources described in the cell allocation that described terminal is about to enter to access described terminal.
In the technical scheme of the present embodiment, first baton handover device in community is terminal distribution low speed interface-free resources, in the time terminal being detected in high-speed moving state, if access community distance is shorter, terminal can, fast by this access community, indicate first aim community directly to distribute the task switching of high speed interface-free resources.When terminal enters behind first aim community, need to again switch while entering second target community, without direct-cut operation occurs again, thus the number of times of the direct-cut operation of required generation when terminal is by multiple community under minimizing high-speed moving state.
Preferably, described according to the measurement report of described terminal to report, determine the Target cell step of switching, comprising:
Obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of neighbor cell;
Whether the signal strength signal intensity that judges described neighbor cell is greater than preset signals intensity, if determine that described neighbor cell is described Target cell.
Preferably, described according to the measurement report of described terminal to report, determine the Target cell step of switching, comprising:
Judge the moving direction of described terminal, determine pre-switch community according to described moving direction;
Obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of pre-switch community;
Whether the signal strength signal intensity that judges described pre-switch community is greater than described preset signals intensity, if determine that described pre-switch community is Target cell.
In the technical scheme of the present embodiment, community baton handover device is prejudged the moving direction of terminal, and in the scenes such as high ferro, community is chain and distributes, therefore pre-determine pre-switch community according to fast mobile terminal direction, after waiting for terminal to report measurement report, could determine pre-switch community.In the time that the signal strength signal intensity of pre-switch community is greater than preset value, directly instruction is switched.Thereby reduce the deterministic process of Target cell, further shortened the preparation duration that switch community.
The embodiment of the present invention provides a kind of community baton handover device, comprises
The first processing module, be used for according to the measurement report of terminal to report, judge that whether described terminal is in high-speed moving state, if be described terminal distribution high speed interface-free resources, described high speed interface-free resources refers to the physical channel resources into the terminal distribution of high-speed mobile;
The second processing module, for according to the measurement report of described terminal to report, determines the Target cell of switching, and indicates described Target cell to enable described high speed interface-free resources, monitors the signal of described high speed interface-free resources;
The 3rd processing module, for judging according to described measurement report whether the error rate of described Target cell in described high speed interface-free resources is less than the default error rate, if be less than the wireless link that discharges described current area, described terminal is switched in described Target cell.
Preferably, described the first processing module, comprising:
The first access unit, for obtaining the access request of described terminal, distributes low speed interface-free resources to access described terminal to accessing community, and described low speed interface-free resources refers to the physical channel resources of the terminal distribution moving for low speed;
Speed judging unit, for obtaining the measurement report of described terminal to report, judges that according to described measurement report whether described terminal is in described high-speed moving state;
Switching within cell unit, if for described terminal in described high-speed moving state, terminal to indicate described access community be high speed interface-free resources described in described terminal distribution described in mark.
Preferably, described the first processing module, also comprises:
Minizone switch unit, if for described terminal in high-speed moving state, terminal switching when band to community at described fast mobile terminal described in mark, indicates high speed interface-free resources described in the cell allocation that described terminal is about to enter to access described terminal.
Preferably, described the second processing module, comprising:
The first acquiring unit, for obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of neighbor cell;
Whether first signal intensity judging unit, be greater than preset signals intensity for the signal strength signal intensity that judges described neighbor cell, if determine that described neighbor cell is described Target cell;
Start unit, is used to indicate described Target cell and enables described high speed interface-free resources, monitors the signal of described high speed interface-free resources.
Preferably, described the second processing module, also comprises:
Moving direction judging unit, for judging the moving direction of described terminal, determines pre-switch community according to described moving direction;
Secondary signal intensity judging unit, for judging whether the signal strength signal intensity of described pre-switch community is greater than described preset signals intensity, if determine that described pre-switch community is Target cell.
In the technical scheme of the present embodiment, baton handover device in community judges the mobile status of terminal according to the measurement report of terminal to report, if terminal is in high-speed moving state, further determine the Target cell that terminal is switched, if terminal is in high-speed moving state, Target cell is community associated under virtual subdistrict, indicating target community is enabled high speed interface-free resources and is monitored the decoded signal on this channel, whether the absolute value that judges the Target cell error rate is greater than the default error rate, if this terminal is switched in Target cell.Because the physical channel resources of terminal is distributed in current area, the physical channel resources of distributing to terminal with Target cell is identical, therefore terminal is positioned at all the time on same channel and communicates transmission before switching and after switching, bottom transmission does not switch, and has reduced the impact that the frequent switching in minizone causes terminal data communication quality.While is mainly to calculate judgement by the community baton handover device of network side for the calculating of the synchronizing process of Target cell, and the high speed interface-free resources of all associated cell of predefine, virtual subdistrict is identical, greatly shorten terminal switch decision duration, GSM network Zhong community baton handover can be completed fast.
Brief description of the drawings
Fig. 1 is community of the present invention relay switching method the first embodiment flow chart;
Fig. 2 is community of the present invention relay switching method the second embodiment flow chart;
Fig. 3 is community baton handover device the first example structure schematic diagram of the present invention;
Fig. 4 is community baton handover device the second example structure schematic diagram of the present invention.
Embodiment
Fig. 1 is community of the present invention relay switching method the first embodiment flow chart, and as shown in Figure 1, the community relay switching method that the embodiment of the present invention provides is carried out by the community baton handover device of network side.This device is located on the server of network side, communicate to connect with base station controller, for physically continuous multiple cell association are got up, manage as a virtual subdistrict in logic, can control the interface-free resources that each community issues, realize the soft synchronous of interface-free resources between different districts.When entering behind virtual subdistrict in the terminal of high-speed moving state, the interface-free resources unification that the community that this device intends passing through by terminal issues is made as high speed interface-free resources, thereby terminal is done to a signal deception, when terminal is switched in multiple communities, bottom transmission is positioned on same channel all the time, realizes the baton handover of wireless signal link between community.This device can adopt the form of software and/or hardware to realize, and the method comprises:
Step S100, according to the measurement report of terminal to report, judges that whether described terminal is in high-speed moving state, if be described terminal distribution high speed interface-free resources, described high speed interface-free resources refers to the physical channel resources into the terminal distribution of high-speed mobile;
Terminal makes a call, and base station receives that terminal is accessed community by access request, terminal in cell communication process reporting measurement reports to base station.Baton handover device in community obtains the measurement report of terminal to report by base station, measurement report comprise terminal positional information, current area information, adjacent cell information and on call time, according to the terminal positional information and the interval time that report for twice before and after terminal is in Preset Time, can calculate the translational speed of this terminal, in the time that the translational speed of terminal is greater than default translational speed, can judge that terminal is in high-speed moving state.
Further, judge that by frequency deviation detection algorithm whether terminal is in high-speed moving state.
Each community under virtual subdistrict is preset with two groups of physical channel resources, wherein one group of physical channel resources is for accessing terminal static or that low speed moves, another group physical channel resources is for accessing the terminal of high-speed mobile, be high speed interface-free resources, the frequency of two groups of physical channel resources and time slot difference.When terminal is during in high-speed moving state, for this terminal distribution high speed interface-free resources is for communication.
Step S102, according to the measurement report of described terminal to report, determines the Target cell of switching, and indicates described Target cell to enable described high speed interface-free resources, monitors the signal of described high speed interface-free resources;
In existing network station layout, each community covers one section of geographic area, between Er Liangge community, can there is the region of overlapping covering, therefore work as terminal Cong Yige community and move to the middle meeting in another community through community switching band, the geographic area that is the overlapping covering in current area and neighbor cell is with in its small area switching.
In the time that band is switched in fast mobile terminal to the community of current area and the overlapping covering of neighbor cell signal, the measurement report reporting comprises current area mark, current area signal strength signal intensity, neighbor cell mark and cell signal strength.Therefore the neighbor cell that baton handover device in community is about to enter by the known terminal of monitoring measurement report, this neighbor cell of mark is to be about to the Target cell that switch community occurs, wherein current area is associated Xia community, virtual subdistrict with neighbor cell.
Further, in the time that band is switched in fast mobile terminal to the common community covering in current area and multiple neighbor cell, neighbor cell associated under the preferred virtual subdistrict of baton handover device, community is as Target cell.
Further, when baton handover device in community is by current area information and the adjacent cell information of monitoring measurement report acquisition terminal, wherein current area, neighbor cell, the community adjacent with neighbor cell are chain distribution, and baton handover device in community can directly be made as Target cell by neighbor cell.
Because community associated under virtual subdistrict all has two groups of physical channel resources, therefore in the time that baton handover device mark neighbor cell is Target cell, high speed interface-free resources is enabled in the control base station of notification target community, monitors the signal on high speed interface-free resources channel.Particularly, on down direction, identical signal is launched in current area and Target cell on the channel of high speed interface-free resources; On up direction, the signal on the channel of monitoring high speed interface-free resources is also enabled in Target cell, and decodes simultaneously.
Step S104, judges that according to described measurement report whether the error rate of described Target cell in described high speed interface-free resources is less than the default error rate, if be less than the wireless link that discharges described current area, switches to described terminal in described Target cell.
Judge according to measurement report the error rate of decoding to the signal on high speed interface-free resources channel in Target cell, in the time that the error rate of Target cell decoding is less than the default error rate, discharge the wireless link of current area, complete current area to the baton handover on the physical channel of Target cell.Wherein, the default error rate is the default a certain absolute value of operator, or the error rate of decoding in high speed interface-free resources for current area.
In the technical scheme of the present embodiment, baton handover device in community judges the mobile status of terminal according to the measurement report of terminal to report, if terminal is in high-speed moving state, further determine the Target cell that terminal is switched, if terminal is in high-speed moving state, Target cell is community associated under virtual subdistrict, indicating target community is enabled high speed interface-free resources and is monitored the decoded signal on this channel, whether the absolute value that judges the Target cell error rate is greater than the default error rate, if this terminal is switched in Target cell.Because the physical channel resources of terminal is distributed in current area, the physical channel resources of distributing to terminal with Target cell is identical, therefore terminal is positioned at all the time on same channel and communicates transmission before switching and after switching, bottom transmission does not switch, and has reduced the impact that the frequent switching in minizone causes terminal data communication quality.While is mainly to calculate judgement by the community baton handover device of network side for the calculating of the synchronizing process of Target cell, and the high speed interface-free resources of all associated cell of predefine, virtual subdistrict is identical, greatly shorten terminal switch decision duration, GSM network Zhong community baton handover can be completed fast.
Fig. 2 is community of the present invention relay switching method the second embodiment flow chart, and as shown in Figure 2, the method comprises:
Step S200, obtains the access request of described terminal, distributes low speed interface-free resources to access described terminal to accessing community, and described low speed interface-free resources refers to the physical channel resources of the terminal distribution moving for low speed;
Step S202, obtains the measurement report of described terminal to report, judges that whether described terminal is in described high-speed moving state, if described terminal, in described high-speed moving state, enters step S204 according to described measurement report;
Step S204, terminal to indicate described access community be high speed interface-free resources described in described terminal distribution described in mark;
Step S206, according to the measurement report of described terminal to report, determines the Target cell of switching, and indicates described Target cell to enable described high speed interface-free resources, monitors the signal of described high speed interface-free resources;
Step S208, judges that according to described measurement report whether the error rate of described Target cell in described high speed interface-free resources is less than the default error rate, enters step S210 if be less than;
Step S210, discharges the wireless link of described current area, and described terminal is switched in described Target cell.
Particularly, when terminal makes a call request, access community is that terminal distribution low speed interface-free resources is carried out data communication.Due to the footprint size of access community not etc., therefore when accessing the covering radius of community when larger, even if terminal in the time of high-speed moving state, also needs the regular hour just can pass through this community.
In the time that the covering radius of access community is greater than default radius, community baton handover device obtains the measurement report of this terminal to report, judges that whether this terminal is in high-speed moving state.If this terminal is in this terminal of mark of high-speed moving state, and instruction access community is that terminal is redistributed high speed interface-free resources for data communication.
Further, in the time that the covering radius of access community is less than default radius, terminal switching when band to community at described fast mobile terminal described in community baton handover device mark, indicates high speed interface-free resources described in the cell allocation that described terminal is about to enter to access described terminal.
For example, terminal enters after access community A, and community A is terminal distribution low speed interface-free resources.Terminal to report measurement report is to base station, and community baton handover device obtains measurement report from base station.In the time that band is switched in fast mobile terminal to the community between community A and B, baton handover device in community knows that according to measurement report community B is the neighbor cell of community A, and terminal is about to switch in the B of community, and indicating cell B distributes high speed interface-free resources to access terminal.
Further, according to the measurement report of described terminal to report, determine that the Target cell step of switching has two kinds of implementations:
1, obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of neighbor cell; Whether the signal strength signal intensity that judges described neighbor cell is greater than preset signals intensity, if determine that described neighbor cell is described Target cell.
Concrete methods of realizing is that community baton handover device obtains after the information of neighbor cell, need further to judge whether the signal strength signal intensity of neighbor cell is greater than preset signals intensity, if determine that this neighbor cell is Target cell, indicate this Target cell to open high speed interface-free resources, to reduce the signaling consumption of Target cell.
2, judge the moving direction of described terminal, determine pre-switch community according to described moving direction; Obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of pre-switch community; Whether the signal strength signal intensity that judges described pre-switch community is greater than described preset signals intensity, if determine that described pre-switch community is Target cell.
Concrete methods of realizing is that baton handover device in community judges the moving direction of terminal in advance according to measurement report.For example judge in advance that the moving direction Wei Cong community A of terminal is to community B to community C, in the time that community A, B, C are the community of virtual subdistrict association, determine that community B and C are pre-switch community.Further judge the signal strength signal intensity of pre-switch community according to measurement report, in the time that the signal strength signal intensity of pre-switch community is greater than preset signals intensity, determine that this pre-switch community is Target cell.For example, in measurement report, neighbor cell is pre-switch community B, judges whether the signal strength signal intensity of community B is greater than preset signals intensity, determines that community B is Target cell if be greater than.
In the technical scheme of the present embodiment, baton handover device in community judges the mobile status of terminal according to the measurement report of terminal to report, if terminal is in high-speed moving state, further determine the Target cell that terminal is switched, if terminal is in high-speed moving state, Target cell is community associated under virtual subdistrict, indicating target community is enabled high speed interface-free resources and is monitored the decoded signal on this channel, whether the absolute value that judges the Target cell error rate is greater than the default error rate, if this terminal is switched in Target cell.Because the physical channel resources of terminal is distributed in current area, the physical channel resources of distributing to terminal with Target cell is identical, therefore terminal is positioned at all the time on same channel and communicates transmission before switching and after switching, bottom transmission does not switch, and has reduced the impact that the frequent switching in minizone causes terminal data communication quality.While is mainly to calculate judgement by the community baton handover device of network side for the calculating of the synchronizing process of Target cell, has greatly shortened terminal switch decision duration, and GSM network Zhong community baton handover can be completed fast.
Fig. 3 is community baton handover device the first example structure schematic diagram of the present invention, and as shown in Figure 3, this system comprises the first processing module 11, the second processing module 12 and the 3rd processing module 13, wherein:
The first processing module 11, be used for according to the measurement report of terminal to report, judge that whether described terminal is in high-speed moving state, if be described terminal distribution high speed interface-free resources, described high speed interface-free resources refers to the physical channel resources into the terminal distribution of high-speed mobile;
The second processing module 12, for according to the measurement report of described terminal to report, determines the Target cell of switching, and indicates described Target cell to enable described high speed interface-free resources, monitors the signal of described high speed interface-free resources;
The 3rd processing module 13, for judging according to described measurement report whether the error rate of described Target cell in described high speed interface-free resources is less than the default error rate, if be less than the wireless link that discharges described current area, described terminal is switched in described Target cell.
In the community baton handover device that the present embodiment provides, concrete structure and function and the handling process of each module can, referring to the embodiment of above-mentioned community relay switching method, repeat no more herein.
In the technical scheme of the present embodiment, baton handover device in community judges the mobile status of terminal according to the measurement report of terminal to report, if terminal is in high-speed moving state, further determine the Target cell that terminal is switched, if terminal is in high-speed moving state, Target cell is community associated under virtual subdistrict, indicating target community is enabled high speed interface-free resources and is monitored the decoded signal on this channel, whether the absolute value that judges the Target cell error rate is greater than the default error rate, if this terminal is switched in Target cell.Because the physical channel resources of terminal is distributed in current area, the physical channel resources of distributing to terminal with Target cell is identical, therefore terminal is positioned at all the time on same channel and communicates transmission before switching and after switching, bottom transmission does not switch, and has reduced the impact that the frequent switching in minizone causes terminal data communication quality.While is mainly to calculate judgement by the community baton handover device of network side for the calculating of the synchronizing process of Target cell, has greatly shortened terminal switch decision duration, and GSM network Zhong community baton handover can be completed fast.
Fig. 4 is community baton handover device the second example structure schematic diagram of the present invention, and as shown in Figure 4, this device comprises the first processing module 21, the second processing module 22 and the 3rd processing module 23, wherein:
The first processing module 21 specifically comprises the first access unit 211, speed judging unit 212, switching within cell unit 213 and minizone switch unit 214, particularly:
The first access unit 211, for obtaining the access request of described terminal, distributes low speed interface-free resources to access described terminal to accessing community, and described low speed interface-free resources refers to the physical channel resources of the terminal distribution moving for low speed;
Speed judging unit 212, for obtaining the measurement report of described terminal to report, judges that according to described measurement report whether described terminal is in described high-speed moving state;
Switching within cell unit 213, if for described terminal in described high-speed moving state, terminal to indicate described access community be high speed interface-free resources described in described terminal distribution described in mark.
Minizone switch unit 214, if for described terminal in high-speed moving state, terminal switching when band to community at described fast mobile terminal described in mark, indicates high speed interface-free resources described in the cell allocation that described terminal is about to enter to access described terminal.
The second processing module 22, specifically comprises the first acquiring unit 221, first signal intensity judging unit 222, moving direction judging unit 223, secondary signal intensity judging unit 224 and start unit 225, wherein:
The first acquiring unit 221, for obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of neighbor cell;
Whether first signal intensity judging unit 222, be greater than preset signals intensity for the signal strength signal intensity that judges described neighbor cell, if determine that described neighbor cell is described Target cell;
Moving direction judging unit 223, for judging the moving direction of described terminal, determines pre-switch community according to described moving direction;
Secondary signal intensity judging unit 224, for judging whether the signal strength signal intensity of described pre-switch community is greater than described preset signals intensity, if determine that described pre-switch community is Target cell.
Start unit 225, is used to indicate described Target cell and enables described high speed interface-free resources, monitors the signal of described high speed interface-free resources.
In the community baton handover device that the present embodiment provides, concrete structure and function and the handling process of each module can, referring to the embodiment of above-mentioned community relay switching method, repeat no more herein.
In the technical scheme of the present embodiment, baton handover device in community judges the mobile status of terminal according to the measurement report of terminal to report, if terminal is in high-speed moving state, further determine the Target cell that terminal is switched, if terminal is in high-speed moving state, Target cell is community associated under virtual subdistrict, indicating target community is enabled high speed interface-free resources and is monitored the decoded signal on this channel, whether the absolute value that judges the Target cell error rate is greater than the default error rate, if this terminal is switched in Target cell.Because the physical channel resources of terminal is distributed in current area, the physical channel resources of distributing to terminal with Target cell is identical, therefore terminal is positioned at all the time on same channel and communicates transmission before switching and after switching, bottom transmission does not switch, and has reduced the impact that the frequent switching in minizone causes terminal data communication quality.While is mainly to calculate judgement by the community baton handover device of network side for the calculating of the synchronizing process of Target cell, has greatly shortened terminal switch decision duration, and GSM network Zhong community baton handover can be completed fast.
It should be noted that: above embodiment is only unrestricted in order to the present invention to be described, the present invention is also not limited in above-mentioned giving an example, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in claim scope of the present invention.
Claims (10)
1.Yi Zhong community relay switching method, is characterized in that, comprising:
According to the measurement report of terminal to report, judge that whether described terminal is in high-speed moving state, if be described terminal distribution high speed interface-free resources, described high speed interface-free resources refers to the physical channel resources into the terminal distribution of high-speed mobile;
According to the measurement report of described terminal to report, determine the Target cell of switching, indicate described Target cell to enable described high speed interface-free resources, monitor the signal of described high speed interface-free resources;
Judge that according to described measurement report whether the error rate of described Target cell in described high speed interface-free resources is less than the default error rate, if be less than the wireless link that discharges described current area, switches to described terminal in described Target cell.
2. community according to claim 1 relay switching method, is characterized in that, described according to the measurement report of terminal to report, judges that whether described terminal is in high-speed moving state, if be described terminal distribution high speed interface-free resources step, comprising:
Obtain the access request of described terminal, distribute low speed interface-free resources to access described terminal to accessing community, described low speed interface-free resources refers to the physical channel resources of the terminal distribution moving for low speed;
Obtain the measurement report of described terminal to report, judge that according to described measurement report whether described terminal is in described high-speed moving state;
If described terminal is in described high-speed moving state, terminal to indicate described access community be high speed interface-free resources described in described terminal distribution described in mark.
3. community according to claim 2 relay switching method, is characterized in that, described in obtain the measurement report of described terminal to report, judge that according to described measurement report described terminal whether after described high-speed moving state step, also comprises:
If described terminal is in high-speed moving state, terminal in the time that described fast mobile terminal switches band to community described in mark, indicates high speed interface-free resources described in the cell allocation that described terminal is about to enter to access described terminal.
4. community according to claim 1 relay switching method, is characterized in that, described according to the measurement report of described terminal to report, determines the Target cell step of switching, and comprising:
Obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of neighbor cell;
Whether the signal strength signal intensity that judges described neighbor cell is greater than preset signals intensity, if determine that described neighbor cell is described Target cell.
5. community according to claim 1 relay switching method, is characterized in that, described according to the measurement report of described terminal to report, determines the Target cell step of switching, and comprising:
Judge the moving direction of described terminal, determine pre-switch community according to described moving direction;
Obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of pre-switch community;
Whether the signal strength signal intensity that judges described pre-switch community is greater than described preset signals intensity, if determine that described pre-switch community is Target cell.
6.Yi Zhong community baton handover device, is characterized in that, comprising:
The first processing module, be used for according to the measurement report of terminal to report, judge that whether described terminal is in high-speed moving state, if be described terminal distribution high speed interface-free resources, described high speed interface-free resources refers to the physical channel resources into the terminal distribution of high-speed mobile;
The second processing module, for according to the measurement report of described terminal to report, determines the Target cell of switching, and indicates described Target cell to enable described high speed interface-free resources, monitors the signal of described high speed interface-free resources;
The 3rd processing module, for judging according to described measurement report whether the error rate of described Target cell in described high speed interface-free resources is less than the default error rate, if be less than the wireless link that discharges described current area, described terminal is switched in described Target cell.
7. baton handover device in community according to claim 6, is characterized in that, described the first processing module, comprising:
The first access unit, for obtaining the access request of described terminal, distributes low speed interface-free resources to access described terminal to accessing community, and described low speed interface-free resources refers to the physical channel resources of the terminal distribution moving for low speed;
Speed judging unit, for obtaining the measurement report of described terminal to report, judges that according to described measurement report whether described terminal is in described high-speed moving state;
Switching within cell unit, if for described terminal in described high-speed moving state, terminal to indicate described access community be high speed interface-free resources described in described terminal distribution described in mark.
8. baton handover device in community according to claim 7, is characterized in that, described the first processing module, also comprises:
Minizone switch unit, if for described terminal in high-speed moving state, terminal switching when band to community at described fast mobile terminal described in mark, indicates high speed interface-free resources described in the cell allocation that described terminal is about to enter to access described terminal.
9. baton handover device in community according to claim 6, is characterized in that, described the second processing module, comprising:
The first acquiring unit, for obtain described fast mobile terminal switch to described community with time measurement report, described measurement report comprises the signal strength signal intensity of neighbor cell;
Whether first signal intensity judging unit, be greater than preset signals intensity for the signal strength signal intensity that judges described neighbor cell, if determine that described neighbor cell is described Target cell;
Start unit, is used to indicate described Target cell and enables described high speed interface-free resources, monitors the signal of described high speed interface-free resources.
10. baton handover device in community according to claim 9, is characterized in that, described the second processing module, also comprises:
Moving direction judging unit, for judging the moving direction of described terminal, determines pre-switch community according to described moving direction;
Secondary signal intensity judging unit, for judging whether the signal strength signal intensity of described pre-switch community is greater than described preset signals intensity, if determine that described pre-switch community is Target cell.
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