CN101009922A - A cross-area switching system of the wireless communication device - Google Patents
A cross-area switching system of the wireless communication device Download PDFInfo
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- CN101009922A CN101009922A CNA2006100334101A CN200610033410A CN101009922A CN 101009922 A CN101009922 A CN 101009922A CN A2006100334101 A CNA2006100334101 A CN A2006100334101A CN 200610033410 A CN200610033410 A CN 200610033410A CN 101009922 A CN101009922 A CN 101009922A
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Abstract
The cross-area switch system for wireless communication device comprises a wireless honeycomb communication source system and a target system, wherein the wireless communication device provides multiple possible cross-area switch target small-zones for target system, and sends the first data to the said source system; the latter further determines these possible small-zones and provides the second data to target system, the target system determines target small-zone and provides the third data to source system to point out the selected target; finally, the wireless device executes cross-area switch. This invention increases reliability for cross-area switch.
Description
[technical field]
The present invention relates to a kind of radio honeycomb communication equipment, particularly relate to a kind of system of Wireless Telecom Equipment handover.
[background technology]
At present, in the radio honeycomb communication system of prior art, for example among GSM, the UMTS......, the behavior that transmits the communication information of communication terminal to another base station from a base station is called handover.At cellular radio Communication system, for example in the 802.16E standard, stipulated different handover procedures.
United States Patent (USP) the 6th, 466 has provided a kind of method of handover No. 556, and it is intended in handover procedure, the less interruption stream of packets.Except carrying out in given cellular radio Communication system the handover procedure, these processes also can realize in the handover between system.But when adopting this method, handover is failed sometimes, thereby causes communicating to connect interruption.
Therefore, the present invention aims to provide a kind of improvement system that carries out handover procedure, and a kind of controller in the radio honeycomb communication system.
[summary of the invention]
The objective of the invention is to be Wireless Telecom Equipment,, provide a kind of system that carries out handover as mobile phone or other subscriber equipmenies.
The objective of the invention is to be achieved through the following technical solutions: a kind of cross-area switching system of Wireless Telecom Equipment, described system comprises radio honeycomb communication origin system and goal systems, described system realizes following operation:
Described Wireless Telecom Equipment provides a plurality of possible handoff target sub-district of goal systems, and provides first data to described origin system;
Described origin system is further determined a plurality of possible handoff target sub-district of described goal systems, and provides second data, the indicating target sub-district to described goal systems;
Described goal systems is determined Target cell, provides the 3rd data to described origin system, the Target cell that indication is selected;
Described Wireless Telecom Equipment is carried out the handover of the Target cell from described origin system to the described goal systems of selecting.
Wherein, described origin system comprises the radio resource controller of carrying out the handover procedure of Wireless Telecom Equipment from radio honeycomb communication system to the radio honeycomb communication goal systems.
Wherein, described radio resource controller comprises: the air interface device that is used for receiving from Wireless Telecom Equipment first data; An enterprising step is determined possible or switching target device preferably on above-mentioned first data basis; The dispensing device of second data is provided to goal systems; The device of the 3rd data of a Target cell of the selected taking-up of reception indicating target system; Carry out the device of the handover of the Target cell of Wireless Telecom Equipment from origin system to the goal systems of selecting.
Wherein, described goal systems comprises the radio resource controller of carrying out the handover procedure of Wireless Telecom Equipment from radio honeycomb communication system to the radio honeycomb communication goal systems.
Wherein, described radio resource controller comprises: the device that is used for receiving from origin system second data; Select the device of a Target cell; The device of the 3rd data is provided to origin system.
Wherein, described first data comprise the Radio Link metrical information of a plurality of possible handoff target sub-districts.
Wherein, described second data comprise at least one possible handoff target sub-district in ability information, current business link information and the indicating target system of Wireless Telecom Equipment.
Wherein, described the 3rd data comprise the Target cell of the handover of final decision.
Wherein, the radio resource controller of described origin system can be selected a plurality of possible handoff target sub-districts based on first data.
Wherein, the radio resource controller of described origin system can be selected a plurality of possible handoff target sub-districts based on the network topology structure of each system wireless resouce controller.
Wherein, described goal systems selects to determine a Target cell based on the required Radio Resource of Wireless Telecom Equipment.
Wherein, described goal systems selects to determine a Target cell based on physical layer ability and MAC layer ability that Wireless Telecom Equipment had.
Wherein, the active volume of described goal systems based target sub-district selects to determine a Target cell.
Wherein, the load balance of described goal systems based target sub-district selects to determine a Target cell.
Wherein, described Wireless Telecom Equipment can have the dual mode communication ability of first and second air interfaces, and origin system has first air interface, and goal systems has second air interface, when carrying out handover, changes the pattern of Wireless Telecom Equipment.
The present invention compared with prior art, have following advantage: the present invention is not that list comes the select target sub-district to finish handover by origin system or list by goal systems, finish handover but combine the select target sub-district, increased the reliability of handover procedure like this by origin system and goal systems.And in this way, at first, with network topology structure to the influence of switching time as one of Consideration; Secondly, origin system initial option Target cell can be selected qualified sub-district as much as possible, and the scope of reasonably having dwindled Target cell reduces to switch and sets up the link burden; Once more, the influence of sub-district active volume and load balance can be considered in the further select target of goal systems sub-district.
[description of drawings]
Fig. 1 is the block diagram of origin system and goal systems.
Fig. 2 is the block diagram of radio honeycomb communication system.
[embodiment]
The present invention combines the select target sub-district with the origin system in the wireless communication system and goal systems to finish handover, thereby has increased the reliability of handover procedure.In order to carry out handover, Wireless Telecom Equipment is determined the Target cell of a plurality of possible handover of goal systems, and with these Target cell notification source systems, the a plurality of possible handoff target sub-district of the further recognition objective of origin system system, and the handoff target cell notification goal systems that these are possible, goal systems is from a plurality of possible one of them Target cell of handoff target cell selecting, and with selection result notification source system.In response, origin system is initiated the handover procedure of Wireless Telecom Equipment.
Please refer to Fig. 1, this figure is the origin system of wireless communication system and the block diagram of goal systems.Wherein, Wireless Telecom Equipment 10 can be discerned the possible Target cell of distinguishing more.Radio honeycomb communication system comprises radio honeycomb communication origin system 20 and goal systems 30, origin system 20 and goal systems 30 are carried out the handover procedure of Wireless Telecom Equipment from the origin system to the goal systems, wherein, origin system 20 comprises the radio resource agent 24 that is used to receive the Wireless Telecom Equipment forwarding information, and radio resource controller 22, described radio resource controller 22 comprises the air interface device that is used for receiving from Wireless Telecom Equipment first data, and on above-mentioned first data basis an enterprising step determine possible or switching target device preferably, the dispensing device of second data is provided to goal systems, the device of the 3rd data of a Target cell of the selected taking-up of reception indicating target system, the device of the handover of the Target cell of execution Wireless Telecom Equipment from origin system to the goal systems of selecting.Goal systems 30 comprises the radio resource agent 34 that is used to receive the Wireless Telecom Equipment forwarding information, and radio resource controller 32, described radio resource controller 32 comprises the device that is used for receiving from origin system second data, select the device of a Target cell, the device of the 3rd data is provided to origin system.
In order to discern the abutting subdistrict that optional covering can be provided this Wireless Telecom Equipment 10, Wireless Telecom Equipment 10 periodically scans one or more frequency ranges, identify the Target cell of possibility handover, form the Target Cell Identifier inventory of one group of possibility handover, obtain the measured value of the radio link parameter of these Target cells simultaneously, as the measured value of radio link parameters such as signal to noise ratio, delay, generate first data according to cell ID inventory and the radio link parameter that obtains.
Wireless Telecom Equipment 10 can these are possible the radio resource controller 22 of handoff target cell notification origin system 20.This can finish by following process: Wireless Telecom Equipment 10 is transmitted first data to the radio resource agent 24 of origin system 20, wherein, first data comprise the Target Cell Identifier inventory of one group of possibility handover, and the radio link parameter metrical information of each Target cell.Select some possible or Target cells preferably in the Target Cell Identifier inventory of the radio resource controller 22 of origin system 20 from first data that radio resource agent 24 receives, and the ability information of combining wireless communication equipment, current business link information, generate second data, radio resource controller 22 is given second data forwarding radio resource controller 32 of goal systems 30 then.Radio resource controller 32 is selected the Target cell that the communication link of needs handover is provided the most suitable in the garbled Target Cell Identifier inventory from second data subsequently, generate the 3rd data, then, radio resource controller 32 will comprise the radio resource controller 22 of the 3rd data of final handoff target sub-district by signaling origin system 20.In response, radio resource controller 22 is initiated to the handover procedure operation of selected Target cell.
According to another kind of preferred implementation of the present invention, be to be used for a plurality of goal systems.When possible handoff target sub-district that Wireless Telecom Equipment 10 is determined outnumbered certain restriction the time, when if 22 pairs of all Target cells of the radio resource controller of origin system 20 are all transmitted first data, will increase switching time, and transmit first data to all Target cells and there is no need.In this case, some radio link parameter measured values that origin system 20 can report according to the physical layer ability that topology information, Wireless Telecom Equipment had of the priori of the Target cell that has got access to such as each system controller and MAC layer ability or Wireless Telecom Equipment, preliminary determining section is Target cell preferably, and other Target cell removed the burden of switching with the minimizing system from the cell ID inventory.
According to another kind of preferred implementation of the present invention, be to be used for a plurality of goal systems equally.In a plurality of goal systems, when the possible handoff target sub-district that Wireless Telecom Equipment 10 is determined belongs to the different target system, Wireless Telecom Equipment 10 provides first data to origin system, the radio resource controller 22 of origin system 20 is further determined a plurality of possible handoff target sub-district of goal systems, and provides second data that contain at least one Target Cell Identifier to each Target cell.Each goal systems checks subsequently whether the possible handoff target sub-district that is identified can become the Serving cell of the communication link that needs handover at present, and the result fed back to origin system as the 3rd data, Wireless Telecom Equipment is carried out the handover of the Target cell from origin system to the goal systems of selecting according to the decision hand-off request of origin system.
If the goal systems oepration at full load of a possible handoff target sub-district that is identified, then this goal systems will be refused hand-off request.And the goal systems of the possible handoff target sub-district that another identified is when still having idle capacity, and then this goal systems will be accepted this hand-off request.In this case, the radio resource controller 22 of origin system 20 will be initiated handover procedure to the Target cell of the goal systems with idle capacity.In this way, can avoid following situation, promptly started handover, and this handover may be failed, needing may to cause the interruption of the communication link of handover at Target cell.
If in the time of can accepting the response of hand-off request more than a goal systems transmission, origin system 20 radio resource controllers 22 just can be selected.This selection can be at random, also can be based on additional quality standard, for example, inform the Target cell loading condition of the radio resource controller 22 of origin system 20 by goal systems, perhaps load balance standard, then by the radio resource controller 22 of origin system 20 according to the situation decision hand-off request that reports.
According to another preferred embodiment of the present invention, origin system 20 has different air interfaces with goal systems 30.For handover between executive system, need a bimodulus or a multi-mode radio communication equipment 10 of supporting different air interfaces.In the time of in being operated in origin system 20, this Wireless Telecom Equipment 10 utilizes another air interface of goal systems 30, by scanning frequency spectrum, possible handoff target sub-district in the recognition objective system 30.As selection, origin system 20 also can oneself be initiated inter-system handoff under for the condition that load balance is considered.
Usually, goal systems 30 is further select target sub-district from the possible handoff target cell lists that origin system 20 provides, the benefit of doing like this is, because goal systems 30 has the up-to-date information of its cell status, just can select a possible handoff target sub-district advisably.
Below in conjunction with a concrete wireless communication system, describe technical scheme of the present invention in detail.
Fig. 2 shows radio honeycomb communication system, as the block diagram of UMTS type system.Communication system has a plurality of wireless network base station controllers, and they interconnect by the packet switching wired backbone.Each base station controller is controlled a plurality of base station transceiver BTS coverage cell, for example, and base station controller 220 control cell base station transceiver BTSi 240, wherein, the span of i from 1 to 256.Equally, base station controller 320 control cell base station transceiver BTSj 340, wherein, the span of j from 1 to 256.
Wireless Telecom Equipment 100 periodically scans one or more frequency ranges, identify the Target cell of possibility handover, form the Target Cell Identifier inventory of one group of possibility handover, obtain the measured value of the radio link parameter of these Target cells simultaneously, as the measured value of radio link parameters such as signal to noise ratio, delay, generate first data according to cell ID inventory and the radio link parameter that obtains.
First data forwarding of the handoff target sub-district that Wireless Telecom Equipment 100 is possible with these is given the base station transceiver BTSi 240 of origin system 200.Select some possible or Target cells preferably in the Target Cell Identifier inventory of base station controller 220 from first data that base station transceiver BTSi 240 receives, and the ability information of combining wireless communication equipment, current business link information, generate second data, the base station controller 320 of goal systems 300 given second data forwarding by base station controller 220 then.Base station controller 320 is selected the Target cell that the communication link of needs handover is provided the most suitable in the garbled Target Cell Identifier inventory from second data subsequently, generate the 3rd data, then, base station controller 320 will comprise the base station controller 220 of the 3rd data of final handoff target sub-district by signaling origin system 200.In response, base station controller 220 is initiated to the handover procedure operation of selected Target cell.
The above only is a preferred example of the present invention, and in order to restriction the present invention, within the spirit and principles in the present invention not all, institute changes, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1, a kind of cross-area switching system of Wireless Telecom Equipment, described system comprises radio honeycomb communication origin system and goal systems, described system realizes following operation:
Described Wireless Telecom Equipment provides a plurality of possible handoff target sub-district of goal systems, and provides first data to described origin system;
Described origin system is further determined a plurality of possible handoff target sub-district of described goal systems, and provides second data, the indicating target sub-district to described goal systems;
Described goal systems is determined Target cell, provides the 3rd data to described origin system, the Target cell that indication is selected;
Described Wireless Telecom Equipment is carried out the handover of the Target cell from described origin system to the described goal systems of selecting.
2, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 1 is characterized in that: described origin system comprises the radio resource controller of carrying out the handover procedure of Wireless Telecom Equipment from radio honeycomb communication system to the radio honeycomb communication goal systems.
3, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 2 is characterized in that: described radio resource controller comprises:
Be used for receiving the air interface device of first data from Wireless Telecom Equipment;
An enterprising step is determined possible or switching target device preferably on above-mentioned first data basis;
The dispensing device of second data is provided to goal systems;
The device of the 3rd data of a Target cell of the selected taking-up of reception indicating target system;
Carry out the device of the handover of the Target cell of Wireless Telecom Equipment from origin system to the goal systems of selecting.
4, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 1 is characterized in that: described goal systems comprises the radio resource controller of carrying out the handover procedure of Wireless Telecom Equipment from radio honeycomb communication system to the radio honeycomb communication goal systems.
5, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 4 is characterized in that: described radio resource controller comprises:
Be used for receiving the device of second data from origin system;
Select the device of a Target cell;
The device of the 3rd data is provided to origin system.
6, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 1 is characterized in that: described first data comprise the Radio Link metrical information of a plurality of possible handoff target sub-districts.
7, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 1 is characterized in that: described second data comprise at least one possible handoff target sub-district in ability information, current business link information and the indicating target system of Wireless Telecom Equipment.
8, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 1 is characterized in that: described the 3rd data comprise the Target cell of the handover of final decision.
9, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 2 is characterized in that: the radio resource controller of described origin system can be selected a plurality of possible handoff target sub-districts based on first data.
10, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 2 is characterized in that: the radio resource controller of described origin system can be selected a plurality of possible handoff target sub-districts based on the network topology structure of each system wireless resouce controller.
11, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 4 is characterized in that: described goal systems selects to determine a Target cell based on the required Radio Resource of Wireless Telecom Equipment.
12, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 4 is characterized in that: described goal systems selects to determine a Target cell based on physical layer ability and MAC layer ability that Wireless Telecom Equipment had.
13, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 4 is characterized in that: the active volume of described goal systems based target sub-district selects to determine a Target cell.
14, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 4 is characterized in that: the load balance of described goal systems based target sub-district selects to determine a Target cell.
15, the cross-area switching system of Wireless Telecom Equipment as claimed in claim 1, it is characterized in that: described Wireless Telecom Equipment can have the dual mode communication ability of first and second air interfaces, origin system has first air interface, goal systems has second air interface, when carrying out handover, change the pattern of Wireless Telecom Equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100334101A CN101009922A (en) | 2006-01-25 | 2006-01-25 | A cross-area switching system of the wireless communication device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100334101A CN101009922A (en) | 2006-01-25 | 2006-01-25 | A cross-area switching system of the wireless communication device |
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| CN101009922A true CN101009922A (en) | 2007-08-01 |
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| CNA2006100334101A Pending CN101009922A (en) | 2006-01-25 | 2006-01-25 | A cross-area switching system of the wireless communication device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9066253B2 (en) | 2008-09-10 | 2015-06-23 | Intel Mobile Communications GmbH | System and method for reduced interruption time in mobile communications |
| WO2024011421A1 (en) * | 2022-07-12 | 2024-01-18 | 北京小米移动软件有限公司 | Method and apparatus for transmitting configuration information and readable storage medium |
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2006
- 2006-01-25 CN CNA2006100334101A patent/CN101009922A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9066253B2 (en) | 2008-09-10 | 2015-06-23 | Intel Mobile Communications GmbH | System and method for reduced interruption time in mobile communications |
| CN102217373B (en) * | 2008-09-10 | 2016-01-20 | 英特尔移动通信有限责任公司 | For reducing the system and method for the break period in mobile communication |
| WO2024011421A1 (en) * | 2022-07-12 | 2024-01-18 | 北京小米移动软件有限公司 | Method and apparatus for transmitting configuration information and readable storage medium |
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