CN1430431A - Channel distribution system of multifrequency radio network and its method - Google Patents
Channel distribution system of multifrequency radio network and its method Download PDFInfo
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- CN1430431A CN1430431A CN 01145311 CN01145311A CN1430431A CN 1430431 A CN1430431 A CN 1430431A CN 01145311 CN01145311 CN 01145311 CN 01145311 A CN01145311 A CN 01145311A CN 1430431 A CN1430431 A CN 1430431A
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Abstract
A channel distribution system of multifrequency radio network includes channel distribution centre, micro-subarea base station, macro-subarea base station and mobile station. The method for channel distribution incldues the following: the channel distribution centre distributing radio channel of base station in micro-subarea or macro-subarea to the mobile station to be used by applying the method of recombination to requirement, when the mobile station is trying to set up connection or to carry on switching. A method of recombination to requiring works as distributing idle channel in micro-subarea first and secondly distributing idle channel in macro-subarea if there is no micro-subsarea channel; carrying on recombination, if there is no macro-subarea channel. Recombination is to switch connection of another station from macro-subarea to another micro-subarea to recover occupied macrosubarea channel and to distribute it to the
Description
Technical field
The invention relates to channel allocation (Channel Allocaiton) system and method for a kind of multi-frequency radio network (Multi-frequency Wireless Network), especially refer to a kind of (Repacking on Denmand that reforms as required, RoD) system and method is in order to conversation blocking rate (Call Blocking Probability) and the conversation switching rate (Call Handover Rate) that improves mobile radio station.
Background technology
The multi-frequency radio network is characterised in that and includes multiple running at base station of different frequency bands (BaseStation) and the mobile radio station (Multi-frequency MobileStation) of running at multiple different frequency bands.Multiple base station has the sub-district (Cell) of multiple different sizes and collects mail to support mobile radio station.(in wireless network, the sub-district is meant each signal of base station covering scope, that is the collected mail scope of mobile radio station.) common multi-frequency radio network such as GSM 900/1800 mobile telephone system and UMTS third generation mobile system.In GSM 900/1800, comprise Microcell (Micro-cell) and macrocell (Macro-cell), this type of macrocell/Microcell structure is modal multi-frequency radio network.In UMTS, its cell size is by little and comprise pico cell (Pico-cell), Microcell, macrocell and supermacro sub-district (Hyper-cell) etc. greatly.Because big sub-district can cover (Overlay) a plurality of less sub-districts to form hierarchy type cell structure (Hierarchical Cell Structure), therefore the multi-frequency radio network has following another name: multistage mobile telephone system (Multi-tier Cellular system), multilayer (Multi-layered, Multi-level) mobile telephone system, multi-mode (Multi-mode) mobile telephone system and mixing (Hybrid) mobile telephone system etc.
When the mobile radio station of multi-frequency radio network connects (Connection) or switches (Handover), mobile radio station may be in macrocell and Microcell, so the multi-frequency radio network system must distribute the wireless channel (Radio Channel) of macro cell base station or microcell base station to use to mobile radio station.According to journal article [Rappaport, S.S.and Hu, L.-R.MicrocellularCommunication Systems with Hierarchical Macrocell Overlays:TrafficPerformance Models and Analysis.Proceedings of the IEEE, Vol.82, No.9, pp.1383-1397, Sep.1994] a kind of basic skills of being disclosed: a wireless channel of system's priority allocation microcell base station (being called for short the Microcell channel) carries out voice call to mobile radio station; If the Microcell channel does not all have the free time (Idle), system's reallocation macrocell channel is given mobile radio station; If macrocell does not have idle channel yet, then mobile radio station will be filled in machine (Block) or be forced to interrupt (ForceTermination).No. the 6205336th, United States Patent (USP) is applied in this basic skills on the relevant communication system of non-voice.Because mobile radio station plug chance causes the client to complain, so conversation blocking rate (being the probability that the each dialing/receiving calling of mobile radio station is filled in machine) is used to assess the usefulness of mobile telephone system.For improving the conversation blocking rate, journal article [Beraldi, R., Marano, S., and Mastroianni, C.AReversible Hierarchical Scheme for Microcellular Systems withOverlaying Macrocells.Proc.of IEEE infocom, pp.51-58,1996] disclose a kind of method especially: when mobile radio station connects or switch, still use the basic skills allocated channel, yet whenever mobile radio station is finished and connected or switch when discharging a Microcell channel toward other sub-districts, system can seek one under this Microcell and use the mobile radio station of macrocell channel in just connecting, and the connection of this mobile radio station (if finding) is switched toward Microcell by macrocell, makes macro cell base station have the wireless channel of maximum free time.Aforesaid by the mobile radio station handover operation of macrocell toward Microcell, be called reformation (Repacking).Yet the shortcoming of the method is whenever the Microcell channel is released, just have an opportunity to carry out switching because of reformation, the switching rate (being the each average switching times that connects of mobile radio station) that causes conversing is too high, and increases the signaling burden and the speech quality that influences mobile radio station of system.
In the multi-frequency radio network, the translational speed of mobile radio station also can influence the conversation switching rate.When the mobile radio station in connecting passes through a plurality of Microcell with high speed,,, cause the raising of conversing switching rate with causing the Microcell of striding of too much number of times to switch (Inter-microcell Handoff) if use the Microcell channel to connect fully.Therefore be the signaling burden and the speech quality of avoiding influencing mobile radio station of reduction system, system should be to distribute the principle that is connected to of macrocell channel to the high-speed mobile station.There are many methods to be used for detecting whether high-speed mobile of mobile radio station, measure as Doppler frequency (Doppler Frequency), or the method that disclosed for No. 6192245 of No. the 5822696th, United States Patent (USP), No. the 6192245th, United States Patent (USP), No. the 6175735th, United States Patent (USP) and United States Patent (USP) etc.Because of the present invention focusing on taked different method for channel allocation at the mobile radio station of different translational speeds, and do not lie in the detection of mobile radio station translational speed, so the speed detection method of aforementioned mobile radio station repeats no more.
When the high-speed mobile station of multi-frequency radio network connects or switches, according to journal article [Maheshwari, K.and Kumar, A.Performance Analysis ofMicrocellization for Supporting Two Mobility Classes in CellularWireless Networks.IEEE Tran.on Vehicular Tech., Vol.49, No.2, pp.321-333, Mar., the 2000] method that is disclosed: macrocell channel of system's priority allocation carries out voice call to mobile radio station; If the macrocell channel does not all have the free time, system's Microcell channel of reallocation is given mobile radio station; If Microcell does not have idle channel yet, mobile radio station plug machine or be forced to interrupt then.In addition, when the macrocell channel was released, switched the connection at this high-speed mobile station (if finding) toward macrocell by Microcell, to reduce the conversation switching rate at the high-speed mobile station during a use of system looks Microcell channel is just connecting.Aforesaid by the high-speed mobile station handover operation of Microcell toward macrocell, be called and fetch (Taken-back).The shortcoming of the method is when the macrocell channel is released, and just has an opportunity to carry out switching because of fetching, and the switching rate that causes conversing is too high.In addition, journal article [Valois, F.andVeque, V.Preemption Policy for Hierarchical Cellular Network.5thIEEE Workshop on Mobile Multimedia Communication.pp.75-81,1998] disclose another kind of method: system's priority allocation macrocell channel carries out voice call to the high-speed mobile station; If the macrocell channel does not all have the free time, system looks is used the mobile radio station at a slow speed of macrocell channel, with this at a slow speed the connection of mobile radio station (if finding) switch toward Microcell by macrocell, reclaim the reallocation of macrocell channel and give the high-speed mobile station to connect or to switch, this action is referred to as to surmount (Preemption); Do not connect if there is superable mobile radio station at a slow speed, reallocation Microcell channel is given mobile radio station; If Microcell does not have idle channel yet, mobile radio station plug machine or be forced to interrupt then.But the conversation plug probability of the method still remains to be improved.
Summary of the invention
The objective of the invention is to propose a kind of channel assigning system and method for multi-frequency radio network, in order to conversation blocking rate and the conversation switching rate that improves mobile radio station, make the mobile radio station user no longer complain conversation obstruction and speech quality, and then promote communication service dealer image.
System of the present invention carries out channel allocation at the reforming method as required of general mobile radio station or mobile radio station employing at a slow speed.In reforming method as required, when mobile radio station connected or switch, Microcell channel of system's priority allocation was given mobile radio station; If the Microcell channel does not all have the free time, secondly system assignment macrocell channel is given mobile radio station; If macrocell does not have idle channel yet, moreover system reform (Repacking).In reforming process, system validation has or not the reformation candidate to connect (RepackingCandidate), and this reformation candidate connects must comprise two conditions:
1. the macrocell channel is just being used in this connection;
2. the microcell base station at the mobile radio station place of this connection has idle channel.If have, select a reformation candidate to connect, should connect by macrocell and switch toward Microcell, reclaim the macrocell channel then and reallocate to mobile radio station to connect or to switch; Do not connect if there is any reformation candidate, final system causes mobile radio station plug machine because of no idle channel or is forced to interrupting.
System of the present invention adopts (the Repacking onDemand for High Speed Mobile Station) method of reforming as required at a high speed to carry out channel allocation at the high-speed mobile station.At a high speed as required in the reforming method, when mobile radio station connected or switch, it was the high-speed mobile station that system detects this mobile radio station, at first distributed the macrocell channel to give this high-speed mobile station; If the macrocell channel does not all have the free time, secondly system looks has or not the reformation candidate connection of mobile radio station at a slow speed; If have, a reformation candidate connection of mobile radio station is at a slow speed selected by system, switches this connection by the past Microcell of macrocell, reclaims the macrocell channel then and reallocates to the high-speed mobile station; Mobile radio station reformation candidate connects if do not have at a slow speed, and system assignment Microcell channel is to the high-speed mobile station; If Microcell does not have idle channel yet, then system seeks the reformation candidate connection that has or not the high-speed mobile station again; If have, select the reformation candidate at a high-speed mobile station to connect, switch this connection by the past Microcell of macrocell, reclaim the macrocell channel then and reallocate to the high-speed mobile station; Connect if there is the reformation candidate at high-speed mobile station, system can't provide idle wireless channel to give this high-speed mobile station, and then the high-speed mobile station is filled in machine or is forced to and interrupts.
The invention is characterized in that reformation is that mobile radio station connects or when switching opportunity, but not preceding method connects or switches when discharging the Microcell channel toward other sub-districts finishing whenever mobile radio station.Therefore, the machine purpose of reforming and reducing mobile radio station conversation switching rate when needed only to reach, and take into account the reduction of conversation plug probability.In addition, adopt at a high speed reforming method as required, also have the effect that reduces the conversation switching rate at the high-speed mobile station.
For purpose of the present invention, feature and advantage are more readily understood, embodiments of the invention are described in detail below in conjunction with accompanying drawing.
Description of drawings:
Fig. 1 is the schematic diagram of embodiment of the system configuration (System Architecture) of multi-frequency radio network of the present invention;
Fig. 2 is the schematic diagram that the sub-district of multi-frequency radio network of the present invention covers (Cell Overlay) embodiment;
Fig. 3 is the process chart of the embodiment of reforming method as required of the present invention;
Fig. 4 high speed of the present invention is the process chart of the embodiment of reforming method as required.
Label declaration in the accompanying drawing
100～105 mobile radio stations, 110～113 microcell base stations
120～121 macro cell base station, 130～131 channel allocation centers
140 external networks, 210～213 Microcells
220～221 macrocells
Embodiment
Fig. 1 is in the embodiment of the invention, the system construction drawing of multi-frequency radio network.The system of multi-frequency radio network comprises mobile radio station (Mobile Station, MS), microcell base station (microcell BaseStation, mBS), macro cell base station (Macrocell Base Station) and channel allocation center (Channel Allocation Center).Mobile radio station 100,101,102,103,104,105 uses the wireless channel that the base station provided to connect.Microcell base station 110,111,112,113 or macro cell base station 120,121 all provide the wireless channel of limited number.Channel allocation center 130 connects external networks 140, distributes the wireless channel of microcell base station 110,111,112,113 or macro cell base station 120,121 to give mobile radio station and connects or switch.Below have and what time merit attention: one, this channel allocation center can be the base station control center (Base StationController) or the action switching center (Mobile Switch Center) of mobile telephone system.In addition, the channel allocation center of microcell base station and macro cell base station not necessarily needs same website (co-located), can be designed to separate type (Distributed) especially; Two, the Connection Service that provided of multi-frequency radio network, include voice call or non-voice communication, wherein non-voice communicates to connect the aspect and comprises circuit switched data (Circuit-switch Data), packet-switched data (Paket-switch Data) or multimedia series flow (Multimedia Stream) etc.; Three, the mobile radio station of multi-frequency radio network includes movable type or state type, and wherein portable mobile radio station comprises high-speed mobile or moves at a slow speed.Portable mobile radio station can be applicable to multi-frequency mobile phone (Multi-frequency Cellular), and the state type mobile radio station can be applicable to multi-frequency radio area loop (Multi-frequency Wireless Local Loop); Four, because of macrocell/Microcell structure is modal multi-frequency radio network, present embodiment will describe with this structure, but the present invention does not limit and is applied to this structure.
Fig. 2 is in the embodiments of the invention, the sub-district coverage diagram of multi-frequency radio network.Wherein, macrocell 220 is the signal covering scope of the macro cell base station 120 of Fig. 1, macrocell 221 is the signal covering scope of the macro cell base station 121 of Fig. 1, Microcell 210 is the signal covering scope of the microcell base station 110 of Fig. 1, Microcell 211 is the signal covering scope of the microcell base station 111 of Fig. 1, Microcell 212 is the signal covering scope of the microcell base station 112 of Fig. 1, and Microcell 213 is the signal covering scope of the microcell base station 113 of Fig. 1.In Fig. 2, macrocell 220 covers Microcell 210 and Microcell 211, and macrocell 221 covers Microcell 212 and Microcell 213.In order to set forth the present invention, mobile radio station 100,101,102,103,104 and 105 has following characteristics in an embodiment: mobile radio station 100,101 and 102 is general mobile radio station at a slow speed, and mobile radio station 103,104 and 105 is the high-speed mobile station.Mobile radio station 100 is just attempting to connect in macrocell 221 and Microcell 212.Mobile radio station 101 just moves toward macrocell 221 and Microcell 212, and is bad gradually with the signal of communication of old base station (as microcell base station 111 or macro cell base station 120), and attempt is switched with new base station (as microcell base station 112 or macro cell base station 121).Mobile radio station 102 is in macrocell 221 and Microcell 213, just with during macro cell base station 121 is connected, because microcell base station 113 has idle channel, so the connection of mobile radio station 102 is reformation candidate connections.High-speed mobile station 103 is in macrocell 221 and Microcell 213, just with during macro cell base station 121 is connected, because microcell base station 113 has idle channel, so the connection at high-speed mobile station 103 is reformation candidate connections.Just attempting to connect in macrocell 221 and Microcell 212 in high-speed mobile station 104.High-speed mobile station 105 is just toward macrocell 221 and Microcell 212 high-speed mobile, bad gradually with the signal of communication of old base station (as microcell base station 111 and macro cell base station 120), attempt is switched with new base station (as microcell base station 112 or macro cell base station 121).
The wireless channel that channel allocation central dispense base station is provided gives mobile radio station to connect or to switch.If system is the ability of tool detection mobile radio station translational speed not, then adopt reforming method allocated channel as required at all mobile radio stations.If system possesses the ability that detects the mobile radio station translational speed, then the channel allocation center has mobile radio station translational speed information, wireless channel will be distributed according to the speed of mobile radio station translational speed in the channel allocation center, adopt reforming method as required at mobile radio station at a slow speed, then adopt at a high speed reforming method as required at the high-speed mobile station.
The channel allocation center adopts reforming method as required to distribute wireless channel to give the mobile radio station of general unknown speed and mobile radio station at a slow speed.Fig. 3 is the process chart of reforming as required, and its step is as described below: when new the connection set up in mobile radio station 100 attempts, or when mobile radio station 101 just is connected with old base station, because of bad gradually with the signal of communication of old base station, thus attempt and newly the base station switch.At this moment, channel allocation center 130 starts reformate flow (step 300) as required.After the startup, channel allocation center 130 confirms that microcell base station 112 has or not idle channel (step 301); If idle Microcell channel is arranged, distribute an idle channel of microcell base station 112 to give mobile radio station (step 302), flow process finishes (step 340) after finishing; If do not have, confirm that macro cell base station 121 has or not idle channel (step 310); If idle macrocell channel is arranged, distribute an idle channel of macro cell base station 121 to give mobile radio station (step 311), flow process finishes (step 340) after finishing; If do not have, confirm to have or not the reformation candidate to connect (step 320); If there is the reformation candidate to connect (as the connection of mobile radio station 102 or mobile radio station 103), select a reformation candidate to connect (step 321) (as connection of selection mobile radio station 102) and carry out the switching (step 322) of selected connection (as the connection of mobile radio station 102 is switched toward microcell base station 113 by macro cell base station 121) again, reclaim the macrocell channel then and reallocate to mobile radio station (step 323), flow process finishes (step 340) after finishing; Do not connect if there is the reformation candidate, system causes mobile radio station 100 plug machines or mobile radio station 101 to be forced to interrupt because of idle channel can't be provided, and then flow process finishes (step 340).It should be noted that, in the program (step 321) of selecting a reformation candidate to connect, channel allocation center 130 selects a connection to switch in can being connected by a plurality of reformation candidates, the selection strategy of this program (Random) is arbitrarily chosen, choose all reformation candidates connect in its microcell base station have maximum idle channel persons, or the reformation candidate who chooses the most at a slow speed connects.
The channel allocation center is adopted at a high speed as required, and reforming method distributes wireless channel to give the high-speed mobile station.Fig. 4 is the process chart of reforming as required at a high speed, its process step is as described below: the new connection set up in 104 attempts when the high-speed mobile station, or just be connected with old base station when high-speed mobile station 105, but because of bad gradually with the signal of communication of old base station, attempt is switched with new base station.At this moment, channel allocation center 130 starts at a high speed reformate flow (step 400) as required.After the startup, channel allocation center 130 confirms that macro cell base station 121 has or not idle channel (step 401); If have, distribute an idle channel of macro cell base station 121 to give mobile radio station (step 402), flow process finishes (step 450) after finishing; If do not have, confirming to have or not at a slow speed, the reformation candidate of mobile radio station connects (step 410); If having at a slow speed, the reformation candidate of mobile radio station connects (as the connection of mobile radio station 102), select a reformation candidate connection (step 411) of mobile radio station at a slow speed (as selecting connection of mobile radio station 102), carry out the switching (step 412) (as the connection of mobile radio station 102 is switched toward microcell base station 113 by macro cell base station 121) of selected connection again, reclaim the macrocell channel then and reallocate to high-speed mobile station (step 413), flow process finishes (step 450) after finishing; The reformation candidate of mobile radio station connects if do not have at a slow speed, confirms that microcell base station 112 has or not idle channel (step 420); If have, distribute an idle channel of microcell base station 112 to give high-speed mobile station (step 421), flow process finishes (step 450) after finishing; If do not have, confirm to have or not the reformation candidate at high-speed mobile station to connect (step 430); If there is the reformation candidate at high-speed mobile station to connect (as the connection at high-speed mobile station 103), select the reformation candidate at a high-speed mobile station to connect (step 431) (as selecting the connection at high-speed mobile station 103), carry out the switching (step 432) (as the connection at high-speed mobile station 103 is switched toward microcell base station 113 by macro cell base station 121) of selected connection again, reclaim the macrocell channel then and reallocate to high-speed mobile station (step 433), flow process finishes (step 450) after finishing; Do not connect if there is the reformation candidate at high-speed mobile station, system causes high-speed mobile station 104 plug machines or high-speed mobile station 105 to be forced to interrupt because of idle channel can't be provided, and then flow process finishes (step 450).It should be noted that, in selectoforming candidate step of connecting 411 and step 431, select a connection switching during channel allocation center 130 can be connected by a plurality of reformation candidates, the selection strategy of this program can choose arbitrarily or choose all reformation candidates connect in its microcell base station have maximum idle channel persons.
The present invention adopts reforming method as required, when the mobile radio station attempt connects or switches, especially the channel of macro cell base station is reformed, reclaiming the macrocell channel then reallocates and uses to mobile radio station, use and reduce mobile radio station conversation plug probability and conversation switching rate, make the mobile radio station user no longer complain conversation obstruction and speech quality, and then promote dealer's image.
The above person only is preferred embodiment of the present invention, and when can not limiting scope of the invention process, all equalizations of doing according to claim of the present invention change and modify etc., still belong to patent covering scope of the present invention.
Claims (17)
1. the channel assigning system of a multi-frequency radio network, this system comprises:
At least one channel allocation center possesses the technology of reforming as required, distributes the channel of microcell base station or macro cell base station to give mobile radio station and connects or switch;
A plurality of microcell base stations provide the wireless channel of limited number;
At least one macro cell base station provide the wireless channel of limited number, and the signal covering scope covers a plurality of microcell base stations;
A plurality of mobile radio stations use wireless channel to connect.
2. the system as claimed in claim 1, wherein the reformation technology as required at this channel allocation center started on following opportunity:
A. the mobile radio station attempt connects with new base station; Or
B. mobile radio station connects, but because of bad gradually with the signal of communication of old base station, attempt is switched with new base station.
3. the system as claimed in claim 1, wherein this old base station comprises macro cell base station or microcell base station.
4. the system as claimed in claim 1, wherein the reformation technology as required at this channel allocation center comprises the following steps:
A. the microcell base station of confirming this mobile radio station has leisureless wireless channel; If have, this microcell base station is the new base station of this mobile radio station, distributes the idle wireless channel of this microcell base station to give this mobile radio station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
B. the macro cell base station of confirming this mobile radio station has leisureless wireless channel; If have, this macro cell base station is the new base station of this mobile radio station, distributes the idle wireless channel of this macro cell base station to give this mobile radio station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
C. the macro cell base station of confirming this mobile radio station has or not the reformation candidate to connect; If have, this macro cell base station is the new base station of this mobile radio station, select a reformation candidate to connect, should reformation candidate connection switch to microcell base station by macro cell base station, the wireless channel that distributes this macro cell base station to reclaim gives this mobile radio station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
D. the leisureless wireless channel of system gives this mobile radio station and connects or switch, i.e. shut down procedure.
5. system as claimed in claim 4, the reformation candidate of the technology of wherein reforming as required connect and can choose arbitrarily, or choose all reformation candidates connect in its microcell base station have maximum idle channel persons, or choose the most at a slow speed that the reformation candidate of mobile radio station connects.
6. the system as claimed in claim 1, wherein this channel allocation center can be base station control center or action switching center.
7. the system as claimed in claim 1, wherein this connection comprises voice call or non-voice communication.
8. the system as claimed in claim 1, wherein this mobile radio station comprises stationary apparatus or movable fixture.
9. the system as claimed in claim 1, wherein this channel allocation center possesses the ability of distinguishing high translational speed mobile radio station, adopt the technology of reforming as required at a high speed that the channel of microcell base station or macro cell base station is distributed at the high-speed mobile station, to connect or to switch.
10. system as claimed in claim 9, wherein the high speed at this channel allocation center technology of reforming as required started when following opportunity:
A. the attempt of high-speed mobile station connects with new base station; Or
B. the high-speed mobile station connects, but because of bad gradually with the signal of communication of old base station, attempt is switched with new base station.
11. system as claimed in claim 10, wherein this old base station comprises macro cell base station or microcell base station.
12. system as claimed in claim 9, wherein the high speed reformation technology as required at channel allocation center comprises the following steps:
A. the macro cell base station of confirming this high-speed mobile station has leisureless wireless channel; If have, this macro cell base station is the new base station for this high-speed mobile station, distributes the idle wireless channel of this macro cell base station to give this high-speed mobile station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
B. the macro cell base station of confirming this high-speed mobile station has or not the reformation candidate connection of mobile radio station at a slow speed; If have, this macro cell base station is the new base station at this high-speed mobile station, select a reformation candidate connection of mobile radio station at a slow speed, with this at a slow speed the reformation candidate of mobile radio station connect and to switch to microcell base station by macro cell base station, the wireless channel that distributes this macro cell base station to reclaim gives this high-speed mobile station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
C. the microcell base station of confirming this high-speed mobile station has leisureless wireless channel; If have, this microcell base station is the new base station at this high-speed mobile station, distributes the idle wireless channel of this microcell base station to give this high-speed mobile station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
D. the macro cell base station of confirming this high-speed mobile station has or not the reformation candidate at high-speed mobile station to connect; If have, this macro cell base station is the new base station at this high-speed mobile station, select the reformation candidate at a high-speed mobile station to connect, should reformation candidate connection switch to microcell base station by macro cell base station, the wireless channel that distributes this macro cell base station to reclaim gives the high-speed mobile station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
E. the leisureless wireless channel of system gives this high-speed mobile station and connects or switch, i.e. shut down procedure.
The reformation candidate of technology connects and can choose arbitrarily 13. system as claimed in claim 12, its high speed reform as required, or choose all reformation candidates connect in its microcell base station have maximum idle channel persons.
14. the method for channel allocation of a multi-frequency radio network, this method comprises the following steps:
A. the microcell base station of confirming this mobile radio station has leisureless wireless channel; If have, this microcell base station is the new base station of this mobile radio station, distributes the idle wireless channel of this microcell base station to give this mobile radio station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
B. the macro cell base station of confirming this mobile radio station has leisureless wireless channel; If have, this macro cell base station is the new base station of this mobile radio station, distributes the idle wireless channel of this macro cell base station to give this mobile radio station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
C. the macro cell base station of confirming this mobile radio station has or not the reformation candidate to connect; If have, this macro cell base station is the new base station of this mobile radio station, select a reformation candidate to connect, should reformation candidate connection switch to microcell base station by macro cell base station, the wireless channel that distributes this macro cell base station to reclaim gives this mobile radio station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
D. the leisureless wireless channel of system gives this mobile radio station and connects or switch, i.e. shut down procedure.
15. method as claimed in claim 14, this method started when following opportunity:
A. the mobile radio station attempt connects with new base station; Or
B. mobile radio station connects, but because of bad gradually with the signal of communication of old base station, attempt is switched with new base station.
16. the high-speed mobile station method for channel allocation of a multi-frequency radio network, this method comprises the following steps:
A. the macro cell base station of confirming this high-speed mobile station has leisureless wireless channel; If have, this macro cell base station is the new base station for this high-speed mobile station, distributes the idle wireless channel of this macro cell base station to give this high-speed mobile station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
B. the macro cell base station of confirming this high-speed mobile station has or not the reformation candidate connection of mobile radio station at a slow speed; If have, this macro cell base station is the new base station at this high-speed mobile station, select a reformation candidate connection of mobile radio station at a slow speed, with this at a slow speed the reformation candidate of mobile radio station connect and to switch to microcell base station by macro cell base station, the wireless channel that distributes this macro cell base station to reclaim gives this high-speed mobile station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
C. the microcell base station of confirming this high-speed mobile station has leisureless wireless channel; If have, this microcell base station is the new base station at this high-speed mobile station, distributes the idle wireless channel of this microcell base station to give this high-speed mobile station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
D. the macro cell base station of confirming this high-speed mobile station has or not the reformation candidate at high-speed mobile station to connect; If have, this macro cell base station is the new base station at this high-speed mobile station, select the reformation candidate at a high-speed mobile station to connect, should reformation candidate connection switch to microcell base station by macro cell base station, the wireless channel that distributes this macro cell base station to reclaim gives the high-speed mobile station and connects or switch shut down procedure after finishing; If do not have, continue following steps;
E. the leisureless wireless channel of system gives this high-speed mobile station and connects or switch, i.e. shut down procedure.
17. system as claimed in claim 16, this method started on following opportunity:
A. the mobile radio station attempt connects with new base station; Or
B. mobile radio station connects, but because of bad gradually with the signal of communication of old base station, attempt is switched with new base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01145311 CN1247032C (en) | 2001-12-31 | 2001-12-31 | Channel distribution system of multifrequency radio network and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01145311 CN1247032C (en) | 2001-12-31 | 2001-12-31 | Channel distribution system of multifrequency radio network and its method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1430431A true CN1430431A (en) | 2003-07-16 |
| CN1247032C CN1247032C (en) | 2006-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01145311 Expired - Lifetime CN1247032C (en) | 2001-12-31 | 2001-12-31 | Channel distribution system of multifrequency radio network and its method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010102506A1 (en) * | 2009-03-09 | 2010-09-16 | 阿尔卡特朗讯 | Optimization method for channel assignment and optimization equipment for channel assignment |
| CN1901730B (en) * | 2005-07-18 | 2011-08-24 | 广州埃信科技有限公司 | Dispatching method for mobile communication volume |
| CN102356655A (en) * | 2009-03-17 | 2012-02-15 | 日本电气株式会社 | Wireless base station apparatus, wireless communication system, wireless communication method, and program |
| WO2014183528A1 (en) * | 2013-08-08 | 2014-11-20 | 中兴通讯股份有限公司 | Method, apparatus, and base station for processing dual connection |
| CN110225560A (en) * | 2014-06-09 | 2019-09-10 | 思科技术公司 | System and method to the switching for obscuring small cell access point are provided in network environment |
-
2001
- 2001-12-31 CN CN 01145311 patent/CN1247032C/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1901730B (en) * | 2005-07-18 | 2011-08-24 | 广州埃信科技有限公司 | Dispatching method for mobile communication volume |
| WO2010102506A1 (en) * | 2009-03-09 | 2010-09-16 | 阿尔卡特朗讯 | Optimization method for channel assignment and optimization equipment for channel assignment |
| US8521201B2 (en) | 2009-03-09 | 2013-08-27 | Alcatel Lucent | Channel assignment optimization method and channel assignment optimization apparatus |
| CN102356655A (en) * | 2009-03-17 | 2012-02-15 | 日本电气株式会社 | Wireless base station apparatus, wireless communication system, wireless communication method, and program |
| US9036518B2 (en) | 2009-03-17 | 2015-05-19 | Nec Corporation | Wireless base station apparatus, wireless communication system, wireless communication method, and program |
| WO2014183528A1 (en) * | 2013-08-08 | 2014-11-20 | 中兴通讯股份有限公司 | Method, apparatus, and base station for processing dual connection |
| CN110225560A (en) * | 2014-06-09 | 2019-09-10 | 思科技术公司 | System and method to the switching for obscuring small cell access point are provided in network environment |
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| Publication number | Publication date |
|---|---|
| CN1247032C (en) | 2006-03-22 |
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