CN101207923A - Method and system for switching mobile commutation system - Google Patents
Method and system for switching mobile commutation system Download PDFInfo
- Publication number
- CN101207923A CN101207923A CNA2007101414502A CN200710141450A CN101207923A CN 101207923 A CN101207923 A CN 101207923A CN A2007101414502 A CNA2007101414502 A CN A2007101414502A CN 200710141450 A CN200710141450 A CN 200710141450A CN 101207923 A CN101207923 A CN 101207923A
- Authority
- CN
- China
- Prior art keywords
- portable terminal
- access
- target
- radio resource
- base station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a switch method of a mobile communication system. The method comprises the following steps that: a target base station is determined by a source base station and a switch request is sent to the target base station; the target base station distributes a plurality of accessing opportunities for a mobile terminal among delayed accessing opportunities under the maximum transmission and the delayed accessing opportunities under the maximum transmission and distributes corresponding radio resources for each accessing opportunity; the target base station sends the accessing opportunities and the corresponding messages of radio resources to the mobile terminal; after the mobile terminal receives a switch command, the first arriving accessing opportunity is chosen from a plurality of accessing opportunities according to the time of receiving the switch command, and a connection is established by utilizing the corresponding radio resources and the target base station.
Description
Technical field
The present invention relates to distributed cellular wireless telecommunication system field, particularly relate to a kind of changing method and system of mobile communication system.
Background technology
The structure chart of distributed cellular wireless telecommunication system sees also Fig. 1, mainly contains portable terminal 101, and base station 102 and core net 103 are formed.The connection of logic or physics can be arranged between the base station as required, and the network that the base station is formed is called wireless access network (RAN), is responsible for the Access Layer affairs, such as the management of Radio Resource; The Radio Resource of up-downgoing is responsible for scheduling according to the mode of shared channel by the base station.Each base station can be connected with one or more than one core net node (CN).Core net is responsible for the Non-Access Stratum affairs, such as mobile management etc.Portable terminal be meant can with the equipment of network communication, such as mobile phone or notebook computer etc.Each portable terminal can only be connected to one of them base station in the network on up direction.
Switching flow figure between existing base station sees also Fig. 2.
Step 201: portable terminal sends measurement report to source base station.
Step 202: source base station judges that according to measurement report and switching control strategy needs switch, and the selected target BS that switches.
Step 203: source base station sends handoff request to target BS, comprises necessary communication context in the message.
Step 204: target BS be the portable terminal distributing radio resource, and definite portable terminal inserts the access opportunity of this base station after judging that permission is switched.
Step 205: target BS sends Handover Request Acknowledge to source base station, comprises in the message that target BS is portable terminal assigned radio resource and access opportunity.
Step 206: source base station sends switching command to portable terminal, comprises in the message that target BS is portable terminal assigned radio resource and access opportunity.This access opportunity is after portable terminal is received the moment of this switching command, has postponed a period of time, and determined access constantly.A period of time of described delay, in order to handling switching command by portable terminal, and software and hardware is prepared, so that portable terminal inserts new base station smoothly.
Step 207: portable terminal switches in the access execution on opportunity that target BS is determined.
Step 208: portable terminal sends switching to target BS and inserts message on the target BS assigned radio resource.
Step 209: target BS sends to portable terminal and switches access confirmation message.
Step 210: portable terminal sends handoff completion message to target BS, and switching flow finishes.
If between each node of communication network is nonsynchronous, promptly terminal is not known synchronizing information own and target BS or sub-district, step 208 and 209 be used for terminal obtain with target BS or sub-district synchronously.If target BS or sub-district just are used for terminal for the Radio Resource of terminal distribution and access and send the scheduling of resource request opportunitys, then switch access message in the step 208 and also will send the scheduling of resource request to target BS or sub-district, target BS or sub-district send the resource of handoff completion message for terminal distribution in step 209.If between each node of communication network is synchronous, and target BS or sub-district can be directly used in the transmission handoff completion message for the Radio Resource and the access of terminal distribution opportunity, and then switching access procedure 208 and 209 can omit.
Switch and also can occur between the different districts of same base station.Different districts between the switching in the base station between different districts and base station to switch on the air interface flow process identical, just there are not transmission and interface between the base station, can between the inside of base station module, finish about the information interactive process between the base station in the switching flow between above-mentioned base station.
In step 204, target BS need be determined access opportunity for portable terminal inserts this base station, and beginning at target BS at this access portable terminal on opportunity is to send on the portable terminal assigned radio resource to switch to insert message; And target BS also can be accepted the switching access message of portable terminal on identical Radio Resource.Also for portable terminal has distributed Radio Resource, this Radio Resource only is used for portable terminal and sends one and insert pulse in step 204, so that this Radio Resource is held time in time domain is very short, such as the length of a subframe.Access opportunity definite needs to consider that target BS sends switching request acknowledgement message and sends the factors such as propagation delay time of switching command message to portable terminal to the propagation delay time and the source base station of source base station.
See also Fig. 3, for inserting the schematic diagram on opportunity in the prior art.T1 is that target BS is the moment on portable terminal distributing radio resource and definite access opportunity in the step 204.The time that the portable terminal actual capabilities are received switching command message portable terminal receive switching command T2 and portable terminal are received the latest constantly between the T3 of switching command constantly the earliest.
In the network operation of reality, the transmittance process of step 205 and step 206 always has the situation of delay to occur, even switch the minizone in the same base station, aerial transmission also exists and postpones.And in order to guarantee that portable terminal as far as possible successfully is linked into target BS, in general two kinds of measures are arranged: first kind of measure, see also shown in Figure 4, access is arranged on T3 opportunity after, target BS is as long as distribute minimum Radio Resource simultaneously.Second kind of measure sees also Fig. 5, considers the minimum delay, access is arranged on the earliest constantly T2 opportunity after, target BS is poor in the delay that has covered on the time domain between T2 and the T3 in assigned radio resource simultaneously.
The problem of first kind of measure is in actual conditions regardless of the delay for message delivery in step 205 and the step 206, the time that portable terminal begins to be cut into target BS at the latest always, so just postponed the handoff procedure of very most of portable terminal artificially, advantage is that assigned radio resource is minimum.The problem of second kind of measure is that redundant Radio Resource depends on the excursion of delay.Such as the excursion that postpones 18ms is arranged, target BS must dispose the Radio Resource of unnecessary 18ms so, from resource utilization, is very non-remunerative, and advantage is that portable terminal is always with the fastest speed incision.
In general the packet that comprises signaling message all can be than higher in the priority of ground and wave point transmission, so only take place under the congested situation in ground resource and Radio Resource, it is big that the scope among above-mentioned Fig. 3 between T2 and the T3 just can become.And in the process of network operation, congested situation takes place Internet resources is more rare, such as appearing at the busy period of system.If system changes the strategy that wireless interface resource is distributed according to network is whether congested, and is obviously too complicated.And adopt two kinds of above-mentioned measures all to be based on the most pessimistic situation that seldom occurs in fact, and defective is separately arranged all.
Summary of the invention
Technical problem to be solved by this invention is, a kind of changing method of mobile communication system is provided, and is used for solving the not high problem of prior art resource utilization.
The present invention relates to a kind of changing method of mobile communication system, be used for the switching of portable terminal between different base station, comprising:
Determine the step of target BS, be used for determining a target BS, and send handoff request to described target BS by source base station;
The step of Resources allocation is used for described target BS and is described portable terminal and distribute a plurality of access opportunity between access opportunity under the maximum transmitted time delay and the access opportunity under the minimum transfer time delay, and be that each described access distributes the Radio Resource of correspondence opportunity;
The transmitting step of switching command is used for described target BS sends the Radio Resource of described access opportunity and correspondence to described portable terminal by described source base station information;
Switch step, after being used for described portable terminal and receiving described switching command, according to receive switching command the time be engraved in the access of selecting to arrive at first on the time domain in described a plurality of access opportunity and switch opportunity.
Described a plurality of access comprises opportunity: access opportunity under the access opportunity under the minimum transfer time delay situation, the maximum transmitted time delay situation and the access opportunity under the normal transmission time delay situation, described propagation delay time is meant the propagation delay time of described switching command from described target BS to described portable terminal.
Described Radio Resource is used to send the scheduling of resource request and can not directly sends handoff completion message, and described switch step further comprises:
Described portable terminal utilizes described Radio Resource to send to switch to described target BS and inserts message;
Described target BS discharges the Radio Resource that does not use of distributing to described portable terminal, and sends the switching access confirmation message to described portable terminal after receiving described switching access message;
Described portable terminal sends handoff completion message to described target BS.
Described Radio Resource can be used for directly sending handoff completion message, and described switch step further comprises:
Described portable terminal utilizes described Radio Resource to send handoff completion message to described target BS;
After described target BS receives described handoff completion message, discharge the Radio Resource that does not use of distributing to described portable terminal.。
Describedly determine that by source base station the step of a target BS further comprises:
Described portable terminal sends measurement report to described source base station;
Described source base station judges whether that according to the switching control strategy of described measurement report and setting needs switch, if desired, and the selected target BS that switches.
The described Radio Resource on corresponding each described access opportunity is a subframe lengths on time domain.
The invention still further relates to a kind of switched system of mobile communication system, be used for the switching of portable terminal between different base station, it is characterized in that, comprising:
Determine the device of target BS, be used for source base station and determine a target BS, and send handoff request to described target BS;
The device of Resources allocation is used for described target BS and is described portable terminal and distribute a plurality of access opportunity between access opportunity under the maximum transmitted time delay and the access opportunity under the minimum transfer time delay, and be that each described access distributes the Radio Resource of correspondence opportunity;
The transmitting device of switching command is used for described target BS sends the Radio Resource of described access opportunity and correspondence to described portable terminal by described source base station information;
Switching device shifter, after being used for described portable terminal and receiving described switching command, according to receive switching command the time be engraved in the access opportunity that arrives at first on the time domain selected in described a plurality of access opportunity, and utilize the Radio Resource of described correspondence and described target BS to connect;
Abandon device, in order to abandon not having the Radio Resource of use after inserting at described portable terminal.
Described a plurality of access comprises opportunity: access opportunity under the access opportunity under the minimum transfer time delay situation, the maximum transmitted time delay situation and the access opportunity under the normal transmission time delay situation.
The described device of abandoning further comprises:
Described portable terminal utilizes described Radio Resource to send the device that switches access message to described target BS;
Described target BS discharges the Radio Resource that does not use of distributing to described portable terminal, and sends the device that switches access confirmation message to described portable terminal after receiving described switching access message;
Described portable terminal sends the device of handoff completion message to described target BS.
The present invention relates to a kind of changing method of mobile communication system, be used for portable terminal switching between different districts in the base station, it is characterized in that, comprising:
Determine the step of Target cell, be used for determining a Target cell by the base station;
The step of Resources allocation is used for described base station and is described portable terminal and distribute a plurality of access opportunity between access opportunity under the maximum transmitted time delay and the access opportunity under the minimum transfer time delay, and be that each described access distributes the Radio Resource of correspondence opportunity;
The transmitting step of switching command is used for described base station sends information from the Radio Resource of described access opportunity and correspondence to described portable terminal;
Switch step, after being used for described portable terminal and receiving described switching command, according to receive switching command the time be engraved in the access of selecting to arrive at first on the time domain in described a plurality of access opportunity and switch opportunity.
Described a plurality of access comprises opportunity: access opportunity under the access opportunity under the minimum transfer time delay situation, the maximum transmitted time delay situation and the access opportunity under the normal transmission time delay situation, described propagation delay time be meant described switching command from Target cell to propagation delay time to described portable terminal.
Described Radio Resource is used to send the scheduling of resource request and can not directly sends handoff completion message, and described switch step further comprises:
Described portable terminal utilizes described Radio Resource to send to switch to described Target cell and inserts message;
Described base station discharges the Radio Resource that does not use of distributing to described portable terminal, and sends the switching access confirmation message to described portable terminal after receiving described switching access message;
Described portable terminal sends handoff completion message to described Target cell.
Described Radio Resource can be used for directly sending handoff completion message, and described switch step further comprises:
Described portable terminal utilizes described Radio Resource to send handoff completion message to described Target cell;
After described base station receives described handoff completion message, discharge the Radio Resource that does not use of distributing to described portable terminal.
Describedly determine that by the base station step of a Target cell further comprises:
Described portable terminal sends measurement report to described base station;
Described base station judges whether that according to the switching control strategy of described measurement report and setting needs switch, if desired, and the selected Target cell that switches.
The described Radio Resource on corresponding each described access opportunity is a subframe lengths on time domain.
Effect of the present invention is, defines a plurality of accesses and helps saving Radio Resource opportunity, improves access speed, can take into account the bigger situation of retardation ratio simultaneously again.
Description of drawings
Figure 1 shows that distributed cellular wireless telecommunication system structure chart;
Figure 2 shows that switching flow figure between existing base station;
Figure 3 shows that the allocation of radio resources moment and portable terminal receive message schematic diagram constantly;
Figure 4 shows that and determine that portable terminal inserts the schematic diagram of first kind of measure on opportunity;
Figure 5 shows that and determine that portable terminal inserts the schematic diagram of second kind of measure on opportunity;
Figure 6 shows that the present invention determines the access schematic diagram on opportunity;
Figure 7 shows that and optimize switching flow figure between the base station later among the present invention;
Figure 8 shows that the structure chart of switched system of the present invention.
Figure 9 shows that and do not have the switching flow figure that switches access procedure among the present invention between the base station.
Figure 10 shows that among the present invention switching flow figure in the base station.
Figure 11 shows that and do not have the switching flow figure that switches access procedure among the present invention in the base station.
Embodiment
In the present invention, target BS is the access opportunity that access distributed of portable terminal, and not only comprises one, but comprises a plurality ofly, and is between the access opportunity and the access opportunity under the minimum transfer time delay that is distributed under the maximum transmitted time delay.What these inserted opportunity need to determine the reference transmission time delay, can see also shown in Figure 6 including but not limited to following occasion:
1) the access opportunity under the minimum transfer time delay situation, T41 (promptly supposing the access opportunity that terminal is determined under the situation of constantly receiving switching command the earliest); Described propagation delay time is propagation delay time or switching command the propagation delay time from Target cell to portable terminal of described switching command from described target BS to described portable terminal.
2) the access opportunity under the normal transmission time delay situation, T42 (promptly suppose the moment of terminal the earliest, between the latest, generally can be set at generally most probable constantly, receive the access opportunity of determining under the situation of switching command);
3) the access opportunity under the maximum transmitted time delay situation, T43 (promptly supposing the access opportunity that terminal is determined under the situation of constantly receiving switching command the latest).
Target BS during opportunity, is the portable terminal distributing radio resource in described a plurality of accesses, and these Radio Resources only are used for portable terminal and send switching access message.After portable terminal was finished access, target BS can in time discharge follow-up also untapped Radio Resource.
See also Fig. 6, suppose that portable terminal receives that the time of switching command is Tr, so as Tr at T2 the time, portable terminal can select the T41 corresponding with T2 as access opportunity from above-mentioned a plurality of access opportunity, utilizes corresponding Radio Resource to send to target BS and switches access message; If Tr is in T3, portable terminal can select the T43 corresponding with T3 as access opportunity from above-mentioned a plurality of access opportunity, utilizes corresponding Radio Resource to send to target BS and switches access message.If Tr is between T2 and T3, portable terminal can be according to actual conditions so, in above-mentioned a plurality of access opportunity, select access opportunity that will arrive at first on the time domain, can in T41, T42 and T43, select appropriate opportunity, utilize corresponding Radio Resource to send to switch and insert message to target BS.The Radio Resource corresponding with each access opportunity for example is a subframe lengths on time domain.After target BS receives to switch access message,, discharge these Radio Resources so if this portable terminal has also been distributed standby Radio Resource.Method of the present invention is equally applicable to portable terminal switching between the different districts in the base station.
Consult Fig. 7, if the base station only is used for synchronously for the portable terminal assigned radio resource or sends the scheduling of resource request, then need to switch access process, concrete steps are as follows
Step 701: portable terminal sends measurement report to source base station.
Step 702: source base station judges that according to measurement report and switching control strategy needs switch, and the selected target BS that switches.
Step 703: source base station sends handoff request to target BS, comprises necessary communication context in this handoff request.
Step 704: target BS is determined a plurality of access opportunity for portable terminal inserts this base station after judge to allow switching, and corresponding each access distributes suitable Radio Resource opportunity.
Step 705: target BS sends Handover Request Acknowledge to source base station, comprises in the message that target BS is the information on portable terminal assigned radio resource and a plurality of access opportunity.
Step 706: source base station sends switching command to portable terminal, comprises in the message that target BS is the portable terminal a plurality of access opportunitys of distributing and the information of the Radio Resource of correspondence with it.
Step 707: after receiving switching command, portable terminal is according to the current real time, and the access of selecting will to arrive at first on the time domain in a plurality of access opportunity is carried out and switch opportunity.
Step 708: portable terminal sends switching to target BS and inserts message on the target BS assigned radio resource.
Step 709: target BS if also exist portable terminal not have the Radio Resource that utilizes, must discharge these Radio Resources after receiving that switching inserts message, access confirmation message is switched in transmission to portable terminal then.
Step 710: portable terminal sends handoff completion message to target BS, and switching flow finishes.
Adopt said method, can guarantee that at first portable terminal can successfully be linked into target BS, because access has comprised the chance that portable terminal may be cut the latest in opportunity; Secondly, system has only reserved few relatively Radio Resource, because only be used to switch the Radio Resource that inserts message, the scope in length on time domain and the prior art shown in Figure 5 between T2 and the T3 is compared, and is much smaller; Last portable terminal is cut into the time of delay of target BS, and between the time of delay of described measure 1 of background technology and measure 2, what of access opportunity actual delay depend on.Such as target BS in embodiments of the present invention is that portable terminal is assigned 3 access opportunitys, and be 1/6 of T2 and the T3 time difference average so in theory time of delay.
As a rule, the switching command message that target BS sends to portable terminal does not have delay, helps saving Radio Resource opportunity so define a plurality of accesses, improves access speed, can take into account the bigger situation of retardation ratio simultaneously again.
The present invention also provides a kind of switched system of mobile communication system, and target BS is the access opportunity that access distributed of portable terminal, and not only comprises one, but comprises a plurality of.What these inserted opportunity need to determine the reference transmission time delay, can see also shown in Figure 6 including but not limited to following occasion:
1) the access opportunity under the minimum transfer time delay situation, T41 (promptly supposing the access opportunity that terminal is determined under the situation of constantly receiving switching command the earliest);
2) the access opportunity under the normal transmission time delay situation, T42 (promptly suppose the moment of terminal the earliest, between the latest, generally can be set at generally most probable constantly, receive the access opportunity of determining under the situation of switching command);
3) the access opportunity under the maximum transmitted time delay situation, T43 (promptly supposing the access opportunity that terminal is determined under the situation of constantly receiving switching command the latest).
The concrete structure of this switched system as shown in Figure 8.
Comprise portable terminal 801, source base station 802, target BS 803 in the mobile communication system.Comprise a switching device shifter 8011 in the described portable terminal 801, comprise in the described source base station 802 that one determines the device 8021 of target BS, comprise in the described target BS 803 that one switches the transmitting device 8032 of instruction and the device 8031, of a distributing radio resource is abandoned device 8033.
The device 8021 of described definite target BS is used for the measurement report that mobile terminal receive sends, judge that according to the switching control strategy of described measurement report and setting needs switch, and the selected target BS that switches, and, comprise necessary communication context in this handoff request to target BS transmission handoff request.
The device 8031 of the distributing radio resource of target BS is determined a plurality of access opportunity for portable terminal inserts this base station after judge to allow switching, and corresponding each access distributes suitable Radio Resource opportunity.
Subsequently, utilize the transmitting device of the switching command of target BS to send Handover Request Acknowledge, comprise in the message that target BS is the information on portable terminal assigned radio resource and a plurality of access opportunity to source base station.
Source base station sends switching command to portable terminal, comprises in the message that target BS is the portable terminal a plurality of access opportunitys of distributing and the information of the Radio Resource of correspondence with it.
After receiving switching command, the switching device shifter 8011 of portable terminal is according to the current real time, and the access of selecting will to arrive at first on the time domain in a plurality of access opportunity is carried out and switch opportunity.
Portable terminal sends switching to target BS and inserts message on the target BS assigned radio resource.Target BS if also exist portable terminal not have the Radio Resource that utilizes, must discharge these Radio Resources by abandoning device 8033 after receiving that switching inserts message, send the switching access confirmation message to portable terminal then.Portable terminal sends handoff completion message to target BS, and switching flow finishes.That is, the described device of abandoning comprises that described portable terminal utilizes described Radio Resource to send to described target BS and switches the device that inserts message; Described target BS discharges the Radio Resource that does not use of distributing to described portable terminal, and sends the device that switches access confirmation message to described portable terminal after receiving described switching access message; Described portable terminal sends the device of handoff completion message to described target BS.
Join shown in Figure 9, if between each node of communication network is synchronous, and target BS can be used to transmit data for the Radio Resource of terminal distribution, then target BS can be directly used in the transmission handoff completion message for the Radio Resource of terminal distribution, then switching access procedure in the switching flow between the base station can omit, and concrete steps are as follows:
901: portable terminal sends measurement report to source base station.
902: source base station judges that according to measurement report and switching control strategy needs switch, and the selected target BS that switches.
903: source base station sends handoff request to target BS, comprises necessary communication context in the message.
904: target BS is determined a plurality of access opportunity for portable terminal inserts this base station after judge to allow switching, and for individual each access opportunity, also distributes suitable Radio Resource.
905: target BS sends Handover Request Acknowledge to source base station, comprises in the message that target BS is portable terminal assigned radio resource and a plurality of access opportunity.
906: source base station sends switching command to portable terminal, comprises in the message that target BS is Radio Resource and a plurality of access opportunity of terminal distribution.
907: after receiving switching command, portable terminal is according to the current real time, and the access of selecting will to arrive at first on the time domain in a plurality of access opportunity is carried out and switch opportunity.
908: portable terminal sends handoff completion message to target BS to target BS on the target BS assigned radio resource.
909: target BS is after receiving handoff completion message, if the Radio Resource that is used to send handoff completion message that also exists portable terminal not utilize must discharge these Radio Resources, switching flow finishes.
Join shown in Figure 10, if switching is to take place between different districts in the base station, just can be synchronous between portable terminal and the Target cell before then generally can guaranteeing to switch, if the base station only is used to send the scheduling of resource request for the portable terminal assigned radio resource, then need to switch access process, concrete steps are as follows:
1001: portable terminal sends measurement report to the base station.
1002: the base station judges that according to measurement report and switching control strategy needs switch to another sub-district of this base station.
1003: a plurality of access opportunity is determined for portable terminal inserts this base station in the base station after judge to allow switching, and for each access opportunity, also distributes suitable Radio Resource, is used for portable terminal and can sends the scheduling of resource request.
1004: the base station sends switching command to terminal, is included as Radio Resource and a plurality of access opportunity of terminal distribution in the message.
1005: after receiving switching command, portable terminal is according to the current real time, and the access of selecting will to arrive at first on the time domain in a plurality of access opportunity is carried out and switch opportunity.
1006: portable terminal sends switching to Target cell and inserts message on the Radio Resource of base station assigns, request sends the resource of handoff completion message.
1007: the base station is after receiving that switching inserts message, if also exist portable terminal not have the Radio Resource that utilizes, must discharge these Radio Resources, send to portable terminal then and switch access confirmation message, be included as the Radio Resource of the transmission handoff completion message of this portable terminal distribution in the message.
1008: portable terminal sends handoff completion message to Target cell, and switching flow finishes.
Join shown in Figure 11, if the base station can be used to transmit data for the portable terminal assigned radio resource when switching between different districts in the base station, then the base station can be directly used in the transmission handoff completion message for the portable terminal assigned radio resource, then switching access process can omit, and concrete steps are as follows:
1101: portable terminal sends measurement report to the base station.
1102: the base station judges that according to measurement report and switching control strategy needs switch to another sub-district of this base station.
1103: a plurality of access opportunity is determined for portable terminal inserts this base station in the base station after judge to allow switching, and for each access opportunity, also distributes suitable Radio Resource, is used for portable terminal and can sends handoff completion message.
1104: the base station sends switching command to portable terminal, is included as Radio Resource and a plurality of access opportunity of terminal distribution in the message.
1105: after receiving switching command, portable terminal is according to the current real time, and the access of selecting will to arrive at first on the time domain in a plurality of access opportunity is carried out and switch opportunity.
1106: portable terminal sends handoff completion message to Target cell on the Radio Resource of base station assigns.
1107: the base station is after receiving handoff completion message, if the Radio Resource that is used to switch that also exists portable terminal not utilize must discharge these Radio Resources, switching flow finishes.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (15)
1. the changing method of a mobile communication system is used for the switching of portable terminal between different base station, it is characterized in that, comprising:
Determine the step of target BS, be used for determining a target BS, and send handoff request to described target BS by source base station;
The step of Resources allocation is used for described target BS and is described portable terminal and distribute a plurality of access opportunity between access opportunity under the maximum transmitted time delay and the access opportunity under the minimum transfer time delay, and be that each described access distributes the Radio Resource of correspondence opportunity;
The transmitting step of switching command is used for described target BS sends the Radio Resource of described access opportunity and correspondence to described portable terminal by described source base station information;
Switch step, after being used for described portable terminal and receiving described switching command, according to receive switching command the time be engraved in the access of selecting to arrive at first on the time domain in described a plurality of access opportunity and switch opportunity.
2. changing method as claimed in claim 1, it is characterized in that, described a plurality of access comprises opportunity: access opportunity under the access opportunity under the minimum transfer time delay situation, the maximum transmitted time delay situation and the access opportunity under the normal transmission time delay situation, described propagation delay time is meant the propagation delay time of described switching command from described target BS to described portable terminal.
3. changing method as claimed in claim 1 is characterized in that described Radio Resource is used to send the scheduling of resource request and can not directly sends handoff completion message, and described switch step further comprises:
Described portable terminal utilizes described Radio Resource to send to switch to described target BS and inserts message;
Described target BS discharges the Radio Resource that does not use of distributing to described portable terminal, and sends the switching access confirmation message to described portable terminal after receiving described switching access message;
Described portable terminal sends handoff completion message to described target BS.
4. changing method as claimed in claim 1 is characterized in that, described Radio Resource can be used for directly sending handoff completion message, and described switch step further comprises:
Described portable terminal utilizes described Radio Resource to send handoff completion message to described target BS;
After described target BS receives described handoff completion message, discharge the Radio Resource that does not use of distributing to described portable terminal.
5. changing method as claimed in claim 1 is characterized in that, describedly determines that by source base station the step of a target BS further comprises:
Described portable terminal sends measurement report to described source base station;
Described source base station judges whether that according to the switching control strategy of described measurement report and setting needs switch, if desired, and the selected target BS that switches.
6. changing method as claimed in claim 1 is characterized in that, the described Radio Resource on corresponding each described access opportunity is a subframe lengths on time domain.
7. the switched system of a mobile communication system is used for the switching of portable terminal between different base station, it is characterized in that, comprising:
Determine the device of target BS, be used for source base station and determine a target BS, and send handoff request to described target BS;
The device of Resources allocation is used for described target BS and is described portable terminal and distribute a plurality of access opportunity between access opportunity under the maximum transmitted time delay and the access opportunity under the minimum transfer time delay, and be that each described access distributes the Radio Resource of correspondence opportunity;
The transmitting device of switching command is used for described target BS sends the Radio Resource of described access opportunity and correspondence to described portable terminal by described source base station information;
Switching device shifter, after being used for described portable terminal and receiving described switching command, according to receive switching command the time be engraved in the access opportunity that arrives at first on the time domain selected in described a plurality of access opportunity, and utilize the Radio Resource of described correspondence and described target BS to connect;
Abandon device, in order to abandon not having the Radio Resource of use after inserting at described portable terminal.
8. switched system as claimed in claim 7 is characterized in that, described a plurality of accesses comprise opportunity: access opportunity under the access opportunity under the minimum transfer time delay situation, the maximum transmitted time delay situation and the access opportunity under the normal transmission time delay situation.
9. switched system as claimed in claim 7 is characterized in that, the described device of abandoning further comprises:
Described portable terminal utilizes described Radio Resource to send the device that switches access message to described target BS;
Described target BS discharges the Radio Resource that does not use of distributing to described portable terminal, and sends the device that switches access confirmation message to described portable terminal after receiving described switching access message;
Described portable terminal sends the device of handoff completion message to described target BS.
10. the changing method of a mobile communication system is used for portable terminal switching between different districts in the base station, it is characterized in that, comprising:
Determine the step of Target cell, be used for determining a Target cell by the base station;
The step of Resources allocation is used for described base station and is described portable terminal and distribute a plurality of access opportunity between access opportunity under the maximum transmitted time delay and the access opportunity under the minimum transfer time delay, and be that each described access distributes the Radio Resource of correspondence opportunity;
The transmitting step of switching command is used for described base station sends information from the Radio Resource of described access opportunity and correspondence to described portable terminal;
Switch step, after being used for described portable terminal and receiving described switching command, according to receive switching command the time be engraved in the access of selecting to arrive at first on the time domain in described a plurality of access opportunity and switch opportunity.
11. changing method as claimed in claim 10, it is characterized in that, described a plurality of access comprises opportunity: access opportunity under the access opportunity under the minimum transfer time delay situation, the maximum transmitted time delay situation and the access opportunity under the normal transmission time delay situation, described propagation delay time be meant described switching command from Target cell to propagation delay time to described portable terminal.
12. changing method as claimed in claim 10 is characterized in that, described Radio Resource is used to send the scheduling of resource request and can not directly sends handoff completion message, and described switch step further comprises:
Described portable terminal utilizes described Radio Resource to send to switch to described Target cell and inserts message;
Described base station discharges the Radio Resource that does not use of distributing to described portable terminal, and sends the switching access confirmation message to described portable terminal after receiving described switching access message;
Described portable terminal sends handoff completion message to described Target cell.
13. changing method as claimed in claim 10 is characterized in that, described Radio Resource can be used for directly sending handoff completion message, and described switch step further comprises:
Described portable terminal utilizes described Radio Resource to send handoff completion message to described Target cell;
After described base station receives described handoff completion message, discharge the Radio Resource that does not use of distributing to described portable terminal.
14. changing method as claimed in claim 10 is characterized in that, describedly determines that by the base station step of a Target cell further comprises:
Described portable terminal sends measurement report to described base station;
Described base station judges whether that according to the switching control strategy of described measurement report and setting needs switch, if desired, and the selected Target cell that switches.
15. changing method as claimed in claim 10 is characterized in that, the described Radio Resource on corresponding each described access opportunity is a subframe lengths on time domain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101414502A CN101207923B (en) | 2006-12-22 | 2007-08-15 | Method and system for switching mobile commutation system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610169572 | 2006-12-22 | ||
| CN200610169572.8 | 2006-12-22 | ||
| CN2007101414502A CN101207923B (en) | 2006-12-22 | 2007-08-15 | Method and system for switching mobile commutation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101207923A true CN101207923A (en) | 2008-06-25 |
| CN101207923B CN101207923B (en) | 2011-12-28 |
Family
ID=39567708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101414502A Expired - Fee Related CN101207923B (en) | 2006-12-22 | 2007-08-15 | Method and system for switching mobile commutation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101207923B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015027476A1 (en) * | 2013-08-30 | 2015-03-05 | 华为技术有限公司 | Network switching method, access point, controller and base station |
| WO2017194011A1 (en) * | 2016-05-13 | 2017-11-16 | 中兴通讯股份有限公司 | Switching method and device |
| WO2021189351A1 (en) * | 2020-03-26 | 2021-09-30 | Oppo广东移动通信有限公司 | Cell handover method, electronic device, and storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100448318B1 (en) * | 2002-11-08 | 2004-09-16 | 삼성전자주식회사 | Method for hand-off in a wileless network |
-
2007
- 2007-08-15 CN CN2007101414502A patent/CN101207923B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015027476A1 (en) * | 2013-08-30 | 2015-03-05 | 华为技术有限公司 | Network switching method, access point, controller and base station |
| CN104641685A (en) * | 2013-08-30 | 2015-05-20 | 华为技术有限公司 | Network switching method, access point, controller and base station |
| CN104641685B (en) * | 2013-08-30 | 2019-05-28 | 华为技术有限公司 | Method for switching network, access point, controller and base station |
| WO2017194011A1 (en) * | 2016-05-13 | 2017-11-16 | 中兴通讯股份有限公司 | Switching method and device |
| WO2021189351A1 (en) * | 2020-03-26 | 2021-09-30 | Oppo广东移动通信有限公司 | Cell handover method, electronic device, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101207923B (en) | 2011-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101370267B (en) | Switching method for mobile communication system | |
| EP1636923B1 (en) | Apparatus and method for establishing radio bearer of mobile terminal | |
| US8170569B2 (en) | Method for facilitate efficient multimedia broadcast/multicast service in a telecommunication system | |
| CN102316582A (en) | Uplink resource allocation method and system | |
| CN1391771A (en) | Channel allocation and release for packet data services | |
| CN101860931B (en) | Cell switching method and system for multi-carrier aggregation system | |
| CN103763748A (en) | Data transmission method and device | |
| CN101124841A (en) | Active set update (ASU) with high speed downlink shared channel (HS-DSCH) information | |
| CN101212790A (en) | Data packet route switching method in mobile communication system | |
| CN101330313A (en) | Method for requesting ascending scheduling in an LTE system | |
| CN101572920A (en) | Method for improving service efficiency of special leader sequence and terminal switching method | |
| CN101207923B (en) | Method and system for switching mobile commutation system | |
| CN102761936A (en) | Method for base station to report UE (user experience) capability, base station and system | |
| CN102170677A (en) | Method, system and device for transmitting request message | |
| CN103200620B (en) | The method of core network access and device in a kind of LTE system | |
| CN101175015B (en) | High-speed descending grouping access characteristic using method and device | |
| CN105744638A (en) | Scheduling method and system, access point and station | |
| CN102378214A (en) | Switching testing method and system and evolved Node B (eNB) | |
| CN101692718A (en) | Method and equipment for implementing improved evolved multimedia broadcast multicast service | |
| CN112616162A (en) | Multi-connection method and system in mobile communication system | |
| CN101155035B (en) | Method and system for transmitting context status information of grouping stream | |
| CN103517447A (en) | Transmission data method and apparatus thereof | |
| CN115314971B (en) | Method for reducing flow of G3-PLC network access program | |
| CN101801053B (en) | Method for removing local exchange, core network equipment and base station subsystem | |
| CN102388579B (en) | Data transmission method, evolution base station and system in handoff procedure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20160815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |