CN101321380A - Switch method, mobile station and switching arrangement - Google Patents

Switch method, mobile station and switching arrangement Download PDF

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Publication number
CN101321380A
CN101321380A CNA2007101117296A CN200710111729A CN101321380A CN 101321380 A CN101321380 A CN 101321380A CN A2007101117296 A CNA2007101117296 A CN A2007101117296A CN 200710111729 A CN200710111729 A CN 200710111729A CN 101321380 A CN101321380 A CN 101321380A
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service link
switching
travelling carriage
opposite end
switching equipment
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CNA2007101117296A
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Chinese (zh)
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CN101321380B (en
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杨胜强
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2007101117296A priority Critical patent/CN101321380B/en
Priority to PCT/CN2008/070601 priority patent/WO2008148313A1/en
Publication of CN101321380A publication Critical patent/CN101321380A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/18Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

This invention discloses a switching method, a MS and an exchanging device. The method comprises the following steps: each transceiver of the mobile station processes the searching and measuring of frequency signal; the mobile station judges whether there is need to initiate the switching to a second base station based on the result of searching and measuring; initiating a new call to the second base station through a second transceiver of the mobile station; the new call takes the address information of the opposite end; building a second business link between the mobile station and the second base station through the second transceiver of the mobile station; the mobile station switches the first business link to the second business link. Adopting MS to judge there is need to initiate the switching and executing the switching process through adopting MS to initiate the new call, which effectively avoids the trouble of developing interoperability interface and proposal for supporting the cross-net switching need among each wireless network.

Description

Changing method, travelling carriage and switching equipment
Technical field
The present invention relates to travelling carriage and switch the field, relate in particular to changing method, travelling carriage (MS) and switching equipment.
Background technology
In the radio honeycomb mobile network, MS can roam arbitrarily, in the user's communication process, owing to moving of MS causes exceeding first base station (BS) coverage of original access, and the 2nd BS coverage that enters other, need make travelling carriage be connected communication with the 2nd BS this moment by handoff procedure, keeps the uninterrupted of user's communication.
The radio honeycomb mobile network provides two kinds of handoff techniques at present: direct-cut operation and soft handover.
Direct-cut operation: when MS moves, detect a BS signal variation to a certain thresholding or after detecting the stronger better signal of the 2nd BS, will report mobile switching centre (MSC), MSC carries out direct-cut operation according to certain algorithmic decision needs, then instruct MS is switched, interrupt communicating by letter, and attempt setting up professional the connection with the 2nd BS with a BS.
Soft handover: in code division multiple access (CDMA) standard radio honeycomb mobile network, CDMA MS is equipped with the RAKE multipath receiver of a similar rake, can support a plurality of signal paths to receive simultaneously.When MS moves, detect the strong signal of one the 2nd BS after, certain branch road that can utilize the RAKE multipath receiver is set up professional the connection with the 2nd BS, and does not need to interrupt the service link with a BS.
More than two kinds of changing methods all be to adopt by collaborative work between a BS and the 2nd BS, finish and MS between switching flow.When the network equipment span that relates to when switching is bigger, need be on each relevant network equipment design interoperability interface, and set up the agreement of communicating by letter between the relevant network equipment, to support normally carrying out of whole switching flow; When the wireless network that relates to belongs to different network systems, more need to design the interoperability interface between the network equipment in the different network systems, and set up communication protocol between the network equipment in the different network systems to support normally the carrying out of switching flow between across a network; If increased Radio Network System in the future newly, also need to design the existing network system and increase interoperability interface between the network equipment in the network system newly, and set up the existing network system and increase communication protocol between the network equipment in the network system newly to support and to increase newly normally carrying out of switching flow between the network.Present this switched design more complicated, extensibility is not strong, and design difficulty and realization cost are all very high.
Summary of the invention
The embodiment of the invention provides changing method, MS and switching equipment, simplifies switching flow, improves the versatility of switching flow, reduces the Network Design difficulty and realizes cost.
First aspect provides a kind of changing method, has set up first service link between first transceiver of travelling carriage and the opposite end, and this method comprises the steps:
Each transceiver of described travelling carriage carries out the frequency signal search and measures;
Described travelling carriage judges whether to be initiated to the switching of second base station according to the result of search and measurement;
Second transceiver by described travelling carriage is initiated new the calling to second base station, carries the address information of described opposite end in the described new calling;
By second transceiver of described travelling carriage, build second service link between the described travelling carriage and second base station;
Described travelling carriage switches to second service link with described first service link.
Second aspect provides a kind of travelling carriage, comprising:
Judging unit is used for the result according to frequency signal search and measurement, and judging whether needs to initiate to switch, and transmits control signal and switching signal;
Two or more transceivers are respectively applied for and carry out frequency signal search and measurement, according to described control signal, and the service link between foundation and the base station;
Switch unit is used for according to described switching signal, and control is professional to be snapped on the service link of appointed transceiving device.
The third aspect provides a kind of switching equipment, comprising:
Receiving element is used to receive the business continuing order, carries the address information of opposite end in the described business continuing order;
Judging unit is used for according to described business continuing order, judges between travelling carriage and the opposite end whether set up professional the connection by this equipment;
Control unit is used for the judged result according to described judging unit, sets up the service link between travelling carriage and the opposite end; Perhaps will have service link switches.
Adopt MS to judge whether to need to initiate to switch, and, effectively avoided the trouble for supporting that inter-network is switched needs exploitation interoperability interface and agreement between the various wireless networks by adopting MS to initiate the process that new method of calling out is carried out switching; The switching mode that adopts the embodiment of the invention to provide, simple to operate, highly versatile is applicable in the various Radio Network Systems and the switching between the different networks system.
Description of drawings
Fig. 1 is the schematic network structure of switching in one embodiment of the invention;
Fig. 2 is the schematic flow sheet that switches in one embodiment of the invention;
Fig. 3 is the schematic flow sheet that switches in another embodiment of the present invention;
Fig. 4 is the system configuration schematic diagram that switches in one embodiment of the invention.
Embodiment
The embodiment of the invention proposes the changing method of MS control, simplifies switching flow, and effectively avoids the trouble for supporting that inter-network is switched needs exploitation interoperability interface and agreement between various wireless networks.
Embodiment one, set up first service link between first transceiver of MS and the opposite end, comprises the steps:
Each transceiver of MS carries out the frequency signal search and measures;
MS search and the result who measures judge whether to be initiated to the switching of second base station;
Initiate if desired to switch, second transceiver of MS is initiated new the calling to the 2nd BS, carries the address information of opposite end in new the calling;
By second transceiver of MS, build second service link between MS and the 2nd BS;
MS switches to second service link with described first service link.
Wherein, the opposite end is the terminal that establishes service link with MS, can be travelling carriage or fixed user equipment etc.That sets up between MS and the opposite end can be business such as conversation, transfer of data, and in the present embodiment, what set up between MS and the opposite end is talk business.
In the step 2, the address information of the opposite end of carrying, telephone number, IP address that can be the opposite end etc. is used to discern the sign to end position, according to different types of service, the address information of opposite end also has different types, and in the present embodiment, the address information of opposite end is the telephone number of opposite end.
Adopt MS to judge whether to need to initiate to switch, and, effectively avoided the trouble for supporting that inter-network is switched needs exploitation interoperability interface and agreement between the various wireless networks by adopting MS to initiate the process that new method of calling out is carried out switching.
Embodiment two, referring to Fig. 1 and Fig. 2, set up first service link between MS and the opposite end, comprise the steps:
1, MS judges the switching that need be initiated to the 2nd BS;
2, MS initiates the originating call connection request to the 2nd BS, carries the address information of opposite end, asks the 2nd BS belonging network to build second service link between MS and the opposite end;
3, after second service link was built and finished, switching equipment was judged new the calling to switching, and the service link between MS and the opposite end is switched on second service link, and switching equipment is the switching equipment of first service link and the common process of second service link.
Switching equipment judges that new the calling is actually switching, do not set up new operation of calling out thereby do not carry out, but the former service link between switching equipment and the opposite end is switched on second service link, thereby finish the switching of MS, simple to operate, highly versatile is applicable in the various Radio Network Systems and the switching between the different networks system.
On first service link between the MS and the opposite end of conversing a plurality of switching equipment can be arranged, also a plurality of switching equipment can be arranged on second service link, switching equipment is the switching equipment of first service link and the common process of second service link, this switching equipment can be any network access device of network side, such as being the PSTN switch, also can be MSC mobile switching centre, also can be base station equipment.If receiving this new call signal, certain switching equipment in the network access device of first service link and the common process of second service link do not judge, then should new call signal be transmitted to next switching equipment, after if this switching equipment receives this new call signal, detect the business of having set up between MS and the opposite end, judge that then described new calling is actually switching, thereby the service link between MS and the opposite end is switched on second service link, and no longer call signal is continued to be transmitted to next switching equipment.In the present embodiment, switching equipment is preferably first switching equipment that is positioned at the MS side in the switching equipment of first service link and the common process of second service link, can finish switching fast, need not the forwarded call signal.
In the above-mentioned steps 3, switching equipment is judged in the step that need switch, has set up business except being detected by switching equipment between described MS and the described opposite end, thereby judging to make new advances to call out is actually switching; Can also in calling, carry and switch indication, switching equipment detects this switching indication, detect again and whether set up service link between described MS and the described opposite end, then judge new the calling in this way to switching, can effectively the new calling difference of common new calling and switching be come like this, not switch indication, then need not to detect whether set up service link between MS and the opposite end if detect, need not detect for common new calling, thereby improve the efficient of common new calling.
Building of second service link comprises the steps:
The 2nd BS build and MS between the front end link of second service link;
The 2nd BS sends the business continuing order to switching equipment, carries the address information of opposite end, the back end link of building second service link.
Above-mentioned business continuing order also has different orders according to different types of service, in the present embodiment, is talk business owing to what set up between MS and the opposite end, and therefore the business continuing order that sends is the call proceeding order.
The step that service link between MS and the opposite end is switched on second service link comprises:
After switching equipment switches on second service link, send switching command to MS;
MS receives switching command, switches on second service link.
First service link is specifically built between first transceiver of opposite end and MS.
The front end link is specifically built between second transceiver of the 2nd BS and MS.
The pattern of first transceiver and second transceiver can be identical, and first transceiver is identical with the pattern of second transceiver, such as being GSM all, then can switch in gsm system; Perhaps all be CDMA, then can in cdma system, switch; Perhaps all be WCDMA, then can in the WCDMA system, switch.
The pattern of first transceiver and second transceiver also can be different, then can realize switching in various systems, further improve the versatility that travelling carriage switches.For example first transceiver is a second generation CDMA transceiver, and second transceiver is a third generation CDMA transceiver, then can realize the direct-cut operation between second generation CDMA and third generation cdma system; If first transceiver is the CDMA transceiver, second transceiver is the GSM transceiver, then can realize the direct-cut operation between CDMA and gsm system; If first transceiver is the CDMA transceiver, second transceiver is the WCDMA transceiver, then can realize the direct-cut operation between CDMA and WCDMA system.
Switching command sends to MS by first service link and second service link respectively, sends message simultaneously on two service link, can improve the reliability of message.
Before the step 1, also comprise the steps:
Each transceiver of MS carries out the frequency signal search and measures, and MS adjudicates the switching that needs are triggered to the 2nd BS according to the result of search and measurement.
MS can carry out frequency signal search and measurement with first transceiver, MS can also use other transceivers except that first transceiver, for example second transceiver carries out the frequency signal search and measures, avoided a transceiver to keep current talking in a certain frequency, machine switches to the conflict that another frequency is carried out signal measurement in due course again, thereby improves the user's communication quality.
In the step 2, second transceiver of MS is initiated originating call connection request message to the 2nd BS, carries the address information of opposite end, asks the 2nd BS belonging network to build second transceiver of MS and second service link between the opposite end;
Also comprise the steps: after the step 3
4, after the switching equipment switching is finished, remove the link between switching equipment and MS in first service link.
Step 4 specifically may further comprise the steps:
After the switching equipment switching is finished, send release message, remove the link of first service link between switching equipment and travelling carriage to a BS;
Each transceiver is simultaneously in running order among the above MS, separate each other, and be in service connected state between first transceiver and the BS, be in talking state between first transceiver and the BS in the present embodiment, other transceiver carries out signal search and measurement in real time, when MS finds to exist measure signal intensity that transceiver reports stronger when better with respect to source BS, then therefrom select a cell carrier frequencies as switching target, initiate new the calling to the 2nd BS of the cell carrier frequencies correspondence of selecting by another transceiver (for example second transceiver).
Embodiment three, referring to Fig. 3, with the MS that is equipped with first transceiver and second transceiver is that example describes, the pattern of first transceiver and second transceiver all is CDMA, being equipped with other pattern transceivers and the situation that is equipped with two above transceivers, can obtaining based on the principle of present embodiment, is example to converse between MS and the opposite end, set up the switching mode of other types business between MS and the opposite end, also can obtain based on the principle of present embodiment.Present embodiment is realized the method for switching, comprises the steps:
301.MS according to the signal measurement result, determine to be initiated to the direct-cut operation of the 2nd BS, send originating call connection request message to the 2nd BS.
302. the 2nd BS receives originating call connection request message, sets up the service link between the 2nd BS and the MS, as the front end link of second service link of MS.
303. the 2nd BS sends the call proceeding order to switching equipment, carries the telephone number of opposite end, builds the back end link of second service link.
304. switching equipment judges whether new calling is switching, then sends switching command if switch.
305.~305 ' switching equipment sends switching command simultaneously on first service link and second service link.Clearly, send switching command message from a plurality of passages simultaneously and will increase the possibility that MS receives message.These 305 and 305 ' two steps walk abreast.Follow-up message similarly can send on two service link simultaneously, improves the reliability of message.
306.~306 ' the one BS and the 2nd BS send expansion or general handover command messages to MS on the interface aloft.
307.~307 ' MS sends MS confirmation instruction to a BS or the 2nd BS.
308. the control unit of~308 ' MS switches to second transceiver with talking link from first transceiver, sends handoff completion message simultaneously to a BS and the 2nd BS after finishing.
309.~309 ' the one BS or the 2nd BS send BS to MS and confirm instruction.
310.~310 ' receives that a BS of handoff completion message or the 2nd BS send handoff completion message to switching equipment, MS has completed successfully switching to the switching equipment notice.
Switch on second service link 311. switching equipment connects business, so far travelling carriage and opposite end are in the enterprising words that work of second service link.After finishing, the switching equipment switching sends clear command message to a BS.
312. a BS will and first transceiver of MS between first service link discharge, discharge own land circuit and resource simultaneously after, send to remove to switching equipment and finish message, the notice switching equipment is removed processing and is finished.
Referring to Fig. 4, for the method among the embodiment two, corresponding switched system is set on hardware, set up first service link between MS and the opposite end, comprising:
MS is used to judge the switching that need be initiated to BS, initiates new the calling to BS, carries the address information of opposite end;
BS is used to build second service link between MS and the opposite end;
Switching equipment is used to judge that new calling for switching, switches to the service link between MS and the opposite end on second service link.
Wherein MS comprises:
Judging unit is used for the result according to frequency signal search and measurement, and judging whether needs to initiate to switch, and transmits control signal and switching signal;
Two or more transceivers are respectively applied for and carry out frequency signal search and measurement, according to control signal, and the service link between foundation and the BS;
Switch unit is used for according to switching signal, and control is professional to be snapped on the service link of appointed transceiving device.
In MS, can directly use judging unit as input/output unit, user interface also can be set in addition the input and output device is provided, the user can be provided with the mode of operation and the search rate parameter of each transceiver by user interface, selects current talking or carries out other professional transceivers.Control bus signaling message transmission and control command; The data/address bus service data transmission, as voice packet, packet.
Wherein switching equipment comprises:
Receiving element receives the business continuing order, carries the address information of opposite end in the business continuing order;
Judging unit according to the business continuing order, judges between MS and the opposite end whether set up professional the connection by this equipment;
Control unit according to the judged result of judging unit, is set up the service link between MS and the opposite end; Perhaps will have service link switches.
It will be appreciated by those skilled in the art that, each above-mentioned unit in MS and the switching equipment can provide by software, hardware or both methods of combination, although each above-mentioned parts provide as discrete unit in the drawings, but in fact, they can be by the microprocessor that comprises input and output port and operating software code, perhaps,, perhaps implement by above-mentioned combination perhaps by discreet component by the chip of customization or mixing.For example the multi-transceiver among the MS can be contained in the processor and finishes, and each transceiver is integrated in the processor as a kind of form of software module.
The judging unit of MS can be indicated according to terminal setting or BS, and the control multi-transceiver carries out the frequency signal search respectively and measures, and when business such as a transceiver is used to converse, other transceiver can be proceeded the frequency signal search and measure.
MS can be provided with independently antenna by each transceiver, also can multi-transceiver totally one antenna, finish Signal Separation and synthetic by branch multiplexer/mixer is set between transceiver and the antenna.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program comprises the steps: that each transceiver of described travelling carriage carries out frequency signal search and measurement when carrying out; Described travelling carriage judges whether to be initiated to the switching of second base station according to the result of search and measurement; Second transceiver by described travelling carriage is initiated new the calling to second base station, carries the address information of described opposite end in the described new calling; By second transceiver of described travelling carriage, build second service link between the described travelling carriage and second base station; Described travelling carriage switches to second service link with described first service link; Described storage medium, as: ROM/RAM, magnetic disc, CD etc.
More than to changing method provided by the present invention, MS and switching equipment, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (10)

1, a kind of changing method is characterized in that, has set up first service link between first transceiver of travelling carriage and the opposite end, and this method comprises the steps:
Each transceiver of described travelling carriage carries out the frequency signal search and measures;
Described travelling carriage judges whether to be initiated to the switching of second base station according to the result of search and measurement;
Initiate if desired to switch, initiate new the calling to second base station, carry the address information of described opposite end in the described new calling by second transceiver of described travelling carriage;
By second transceiver of described travelling carriage, build second service link between the described travelling carriage and second base station;
Described travelling carriage switches to second service link with described first service link.
2, changing method according to claim 1 is characterized in that, also comprises the steps:
Described second base station sends the business continuing order to switching equipment, carries the address information of described opposite end, and described switching equipment is the network access device of described first service link and the common process of second service link;
Described switching equipment build and described second base station between second service link;
Described switching equipment switches to second service link with described first service link.
3, changing method according to claim 2 is characterized in that, described switching equipment comprises the step that described first service link switches to second service link:
Switching equipment judges that described new calling for switching, switches to described second service link with described first service link.
4, changing method according to claim 3 is characterized in that, described switching equipment judges that described new calling comprises for the step of switching:
Described switching equipment detects have been set up between described travelling carriage and the described opposite end professional the connection, judges that then described new calling is switching; Perhaps
Carry in the described new calling and switch indication, described switching equipment detects described switching indication, detects between described travelling carriage and the described opposite end whether set up professional the connection, is switching if then judge described new calling.
5, changing method according to claim 3 is characterized in that, described travelling carriage switches to the second service link step with described first service link and comprises:
After described switching equipment switches on described second service link, send switching command to described travelling carriage; Described travelling carriage is received described switching command, switches on described second service link;
Perhaps
Described switching equipment sends switching command to described travelling carriage, and described travelling carriage is received described switching command, switches on described second service link; Described switching equipment switches on described second service link.
6, changing method according to claim 5 is characterized in that, described step to described travelling carriage transmission switching command comprises:
Described switching equipment sends to described travelling carriage by first service link with described switching command;
Described switching equipment sends to described travelling carriage by second service link with described switching command.
7, changing method according to claim 2 is characterized in that, described switching equipment is first equipment that is positioned at mobile station side in the network access device of first service link and the common process of second service link between described travelling carriage and the described opposite end.
8, changing method according to claim 1 is characterized in that, also comprises the steps:
Remove described first service link.
9, a kind of travelling carriage is characterized in that, comprising:
Judging unit is used for the result according to frequency signal search and measurement, and judging whether needs to initiate to switch, and transmits control signal and switching signal;
Two or more transceivers are respectively applied for and carry out frequency signal search and measurement, according to described control signal, and the service link between foundation and the base station;
Switch unit is used for according to described switching signal, and control is professional to be snapped on the service link of appointed transceiving device.
10, a kind of switching equipment is characterized in that, comprising:
Receiving element is used to receive the business continuing order, carries the address information of opposite end in the described business continuing order;
Judging unit is used for according to described business continuing order, judges between travelling carriage and the opposite end whether set up professional the connection by this equipment;
Control unit is used for the judged result according to described judging unit, sets up the service link between travelling carriage and the opposite end; Perhaps will have service link switches.
CN2007101117296A 2007-06-04 2007-06-04 Switch method, mobile station and switching arrangement Expired - Fee Related CN101321380B (en)

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CN2007101117296A CN101321380B (en) 2007-06-04 2007-06-04 Switch method, mobile station and switching arrangement
PCT/CN2008/070601 WO2008148313A1 (en) 2007-06-04 2008-03-27 Handover method, mobile station and switch device

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Application Number Priority Date Filing Date Title
CN2007101117296A CN101321380B (en) 2007-06-04 2007-06-04 Switch method, mobile station and switching arrangement

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Cited By (4)

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WO2010091612A1 (en) * 2009-02-10 2010-08-19 华为技术有限公司 Method, core network device and base station subsystem for establishing local exchange
WO2017143755A1 (en) * 2016-02-22 2017-08-31 中兴通讯股份有限公司 Method and device for network switchover and user equipment
CN108370530A (en) * 2015-12-08 2018-08-03 华为技术有限公司 Method and system for executing network slice in wireless access network
US10772101B2 (en) 2015-12-08 2020-09-08 Huawei Technologies Co., Ltd. Systems and methods for determining air interface configuration

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FI103081B1 (en) * 1996-02-23 1999-04-15 Nokia Telecommunications Oy Handover in a mobile communication system
JP3522204B2 (en) * 2000-09-20 2004-04-26 日本電気株式会社 Handover processing method
US6795708B1 (en) * 2001-02-26 2004-09-21 Jayesh Patel Convergent wireless communication system
CN1145295C (en) * 2001-04-04 2004-04-07 华为技术有限公司 Method for soft switching subzone of mobile station in CDMA communication system
JP4189656B2 (en) * 2003-04-28 2008-12-03 日本電気株式会社 Mobile phone antenna switching method using AGC receiver and mobile terminal thereof
KR100871620B1 (en) * 2005-11-10 2008-12-02 삼성전자주식회사 Apparatus and method for handover for multihop system in broadband wireless access communication network

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091612A1 (en) * 2009-02-10 2010-08-19 华为技术有限公司 Method, core network device and base station subsystem for establishing local exchange
CN101801046B (en) * 2009-02-10 2012-07-11 华为技术有限公司 Method for establishing local exchange, core network equipment and base station subsystem
CN108370530A (en) * 2015-12-08 2018-08-03 华为技术有限公司 Method and system for executing network slice in wireless access network
US10772101B2 (en) 2015-12-08 2020-09-08 Huawei Technologies Co., Ltd. Systems and methods for determining air interface configuration
CN108370530B (en) * 2015-12-08 2020-09-11 华为技术有限公司 Method and system for performing network slicing in a radio access network
WO2017143755A1 (en) * 2016-02-22 2017-08-31 中兴通讯股份有限公司 Method and device for network switchover and user equipment

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