CN101626605A - Method, system and device for switching wireless system - Google Patents
Method, system and device for switching wireless system Download PDFInfo
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- CN101626605A CN101626605A CN200810132839A CN200810132839A CN101626605A CN 101626605 A CN101626605 A CN 101626605A CN 200810132839 A CN200810132839 A CN 200810132839A CN 200810132839 A CN200810132839 A CN 200810132839A CN 101626605 A CN101626605 A CN 101626605A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/38—Reselection control by fixed network equipment
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Abstract
The embodiment of the invention discloses a method, a system and a device for switching a wireless system. The method for switching the wireless system comprises the following steps: acquiring switching judgment information by a base station; determining a switching mode according to the switching judgment information, and determining execution of a switching operation according to the switching mode; and sending switching message which carries the switching mode and indicating information of a target channel switched by a terminal to the terminal in a service area of the base station, and indicating the terminal to be switched to the target channel according to the switching mode. The embodiment of the invention can flexibly process the conditions that the base station and all terminals in the service area of the base station totally execute the switching operation and partial terminals execute the switching operation to reduce the switching times of the base station so as to reduce the service interrupt of a working channel caused by the switching of the base station and improve the QoS of the whole system.
Description
Technical field
The embodiment of the invention relates to communication technical field, particularly a kind of changing method of wireless system, system and device.
Background technology
Radio Resource is more and more rare at present, and the wireless traffic of new growth is also more and more, and the mode of traditional fixed allocation frequency spectrum can not satisfy the demand of growing wireless traffic.The wireless traffic that dynamic spectrum inserts to increasing provides new space.It is different with the mode of traditional fixed allocation frequency spectrum that dynamic spectrum inserts, and the state that the node with perception is known frequency spectrum around this node can use this frequency range to set up communication during for the free time.When occur the higher user of priority or since link-quality under be reduced to QoS (Quality of Service, service quality) when requiring, the node that this class has perception switches on other available channels, rebulids communication.
In the prior art, the metrical information of the terminal that this base station self and this base station are served in the service range is collected in the base station, if the terminal of being served satisfies switching condition, the base station transmitting channel switches message informing terminal switching channels, at this moment the business of whole cell operation on this channel all can be interrupted, the business of whole then cell operation on this channel all is switched on the destination channel, and base station in the promptly whole sub-district and terminal all switch on the destination channel works.
In order to reduce switching time, shorten professional break period, the base station is safeguarded the candidate channel tabulation in advance, so that under the situation that needs switch, the business in the base station is switched on the highest channel of candidate channel medium priority fast, recovers communication as early as possible.Rather than after satisfying switching condition, just trigger the scanning of switching target channel.
The candidate channel tabulation is periodically broadcasted in the base station in switching message.If the terminal that transfers to after the active state from the free time can not find serving BS at original working channel, just on candidate channel, seek, realize quick access service base station.If the terminal that transfers to after the active state can not the access service base station, then this terminal is restarted normal channel scanning, the channel that searching can insert.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art: owing to need to interrupt all business on the work at present channel in the process of switch operating channel, therefore the QoS to whole system has very big influence.And the switch operating channel needs the sub-district to abandon working on current working frequency range, is unfavorable for improving the network spectrum utilance.
Summary of the invention
The embodiment of the invention provides a kind of changing method, system and device of wireless system, with the number of times of minimizing base station switching, thereby reduces because the service disconnection of the working channel that causes is switched in the base station.
For achieving the above object, the embodiment of the invention provides a kind of changing method of wireless system on the one hand, comprising: switching judgment information is collected in the base station; Determine switch mode according to described switching judgment information, and generate switching message according to described switch mode; Send the described terminal that handovers messages in the described base station service area, described switching message is carried the indication information of the destination channel of described switch mode and the switching of described terminal, indicates described terminal to switch on the destination channel according to described switch mode.
On the other hand, the embodiment of the invention also provides a kind of wireless system, comprise: the base station, be used to collect switching judgment information, determine switch mode according to described switching judgment information, determine the execution of handover operation, and send the terminal that handovers messages in the described base station service area according to described switch mode, described switching message is carried the indication information of the destination channel of described switch mode and the switching of described terminal, indicates described terminal to switch on the destination channel according to described switch mode; Terminal is used to receive the switching message that described base station sends, and the indication information of the destination channel that switch mode that carries according to described switching message and described terminal are switched is carried out handover operation.
On the one hand, the embodiment of the invention also provides a kind of base station, comprising: collection module is used to collect switching judgment information again; Determination module is used for determining switch mode according to the switching judgment information that described collection module is collected, and determines the execution of handover operation according to described switch mode; Message transmission module is used to send the terminal that handovers messages in the described base station service area, and described switching message is carried the indication information of the destination channel of definite switch mode of described determination module and the switching of described terminal.
On the one hand, the embodiment of the invention also provides a kind of terminal, comprising again: the message sink module, be used to receive the switching message that described base station sends, and described switching message is carried the indication information of the destination channel of switch mode and the switching of described terminal; Switching executing module, the indication information that is used for the destination channel that the switch mode that carries according to the switching message that described message sink module receives and described terminal switch is carried out handover operation.
Compared with prior art, the embodiment of the invention has the following advantages: pass through the embodiment of the invention, switching judgment information is collected in the base station, and determine switch mode according to the switching judgment information of collecting, determine the execution of handover operation according to the switch mode of determining, and carrying the indication information of the destination channel of switch mode and terminal switching in the switching message of the terminal in sending to base station service area, indicating terminal switches on the destination channel according to switch mode.The embodiment of the invention has reduced the number of times that switch the base station, thereby has reduced because the service disconnection of the working channel that causes is switched in the base station, has improved the QoS of whole system, has also improved handover success rate.
Description of drawings
Fig. 1 is the flow chart of the changing method of embodiment of the invention wireless system;
Fig. 2 is the structure chart of embodiment of the invention wireless system;
Fig. 3 is the structure chart of embodiment of the invention base station;
Fig. 4 is the structure chart of embodiment of the invention terminal.
Embodiment
The embodiment of the invention provides a kind of changing method of wireless system, pass through the embodiment of the invention, switching judgment information is collected in the base station, and determine to carry out switch mode according to the switching judgment information of collecting, determine the execution of handover operation according to the switch mode of determining, carry the indication information of the destination channel of switch mode and terminal switching in the switching message of the terminal in sending to base station service area, and indicating terminal switches on the destination channel according to switch mode, reduced the number of times that switch the base station, thereby reduced because the service disconnection of the working channel that causes is switched in the base station, improved the QoS of whole system, improve the availability of frequency spectrum of network, reduced the situation of terminal handoff failure.
As shown in Figure 1, the flow chart for the changing method of embodiment of the invention wireless system specifically may further comprise the steps:
Step S101, switching judgment information is collected in the base station.This switching judgment information comprises the metrical information and/or the network side information of the terminal to report in the base station service area.To be terminal to the working channel of the sub-district at this terminal place detect the metrical information of terminal to report obtains, and comprises that authorized user detects, and interference level detects, channel quality detection etc.Network side information comprises that there are which neighbours base station, the working channel of this neighbours base station, system load situation etc. in the base station.
Step S102, the base station judges whether switching judgment information satisfies handover triggering condition, if satisfy, execution in step S103 then, if this switching judgment information does not satisfy handover triggering condition, then handover operation is not carried out in the base station.This handover triggering condition can obviously descend for having a terminal feedback signal strength or signal quality in the base station service area at least, also can go out authorized user for having a terminal detection feedback in the base station service area at least, can also be that at least one terminal interference level is obviously higher in the base station service area, can also be that the base station service area load is excessive etc.
Step S103, switch mode is determined in the base station.
In embodiments of the present invention, switch mode can be divided into first switch mode and second switch mode, and under different switch modes, different handover operations is carried out in the base station.For example: when carrying out first switch mode, handover operation is carried out in the base station; When carrying out second switch mode, handover operation is not carried out in the base station.
After the base station determined that switching judgment information satisfies handover triggering condition, this base station judged whether switching judgment information satisfies the switch mode judgment condition, if satisfy, then determined to carry out first switch mode, execution in step S104; If this switching judgment information does not satisfy the switch mode judgment condition, then determine to carry out second switch mode, execution in step S105.This switch mode judgment condition can obviously descend for the signal strength signal intensity or the signal quality of a plurality of terminals, also can produce descending interference etc. to authorized user for the base station.
Step S104, first switch mode is carried out in the base station, determines to switch to destination channel, and all terminals transmission switching message in base station service area, and this switching message is carried the indication information of the destination channel of switch mode and terminal switching.This switching message is broadcast, and all terminals in this switching message indication base station service area switch to the switching target channel that the base station is determined, this base station also switches to this destination channel.This destination channel can be the candidate channel of system, also can be the new idle channel that detects of system.
Before carrying out handover operation, all terminals data message before the bank switching in buffer memory in base station and this base station service area, switching to the switching target channel that the base station is determined, and through behind about fixed response time, all recover to communicate by letter on destination channel with all terminals in this base station service area in the base station.All terminals in this base station service area insert the former serving BS that switches to destination channel.In handoff procedure, all terminals in this base station service area do not need to find range again, operations such as authentication, so these terminals can be resumed work on destination channel fast.
Step S105, second switch mode is carried out in the base station, continues to work on former working channel, determine to carry out the terminal of handover operation, determine the working channel to the neighbours base station of terminal recommendation, the terminal of determining to this base station of carrying out handover operation sends switches message, interrupts the communication with these terminals.This switching message is multicast or unicast messages, and the terminal of carrying out handover operation of notifying this base station to determine is carried out handover operation.Switch mode indication information in this switching message carries the destination channel that the base station recommends terminal to switch.After receiving this switching message, terminal is carried out handover operation.Before terminal was carried out handover operation, the terminal of carrying out handover operation of determining that the base station will be stored was switched preceding data message and communication context, is transmitted to the neighbours base station of working on the destination channel of switching.It is synchronous to obtain up-downgoing on the neighbours base station working channel that the described terminal of determining to carry out handover operation is recommended in this base station, realizes that the minizone switches.
Wherein, the destination channel of base station recommendation terminal switching is to determine according to the switching judgment information that collect the base station.When the small number of terminals in switching judgment information is this base station service area produced uplink interference to authorized user, the neighbours base station working channel away from the detected authorized user working channel of terminal was recommended in this base station; When switching judgment information is this base station load when excessive, the less neighbours base station working channel of load is recommended in this base station; When switching judgment information is a terminal during away from former base station service area, the neighbours base station working channel on the terminal moving direction in this base station service area is recommended in this base station.More than be several modes that the destination channel of recommendation is determined in the base station; the embodiment of the invention is not limited thereto; any switching judgment information of collecting according to the base station is determined the method for the destination channel that base station recommendation terminal is switched, and all should fall into the protection range of the embodiment of the invention.
Wherein, to determine to carry out the terminal of handover operation be to determine according to the switching judgment information that collect the base station in the base station.When switching judgment information is that the terminal of carrying out handover operation that the base station is determined only comprises: the terminal that reports this switching judgment information because terminal away from the moving of current service district, moves when producing signal strength signal intensity and descending; When switching judgment information is a terminal when detecting authorized user, then the terminal of carrying out handover operation determined of base station comprises: report this switching judgment information terminal and with this terminal neighboring terminals; When switching judgment information is that this base station load is when overweight, then in order to reach load balancing, the terminal of carrying out handover operation that the base station is determined comprises: be operated in the service area of the neighbours base station on the destination channel of recommending this base station and the interior terminal of overlapping scope of this base station service area.
The changing method of above-mentioned wireless system, switching judgment information is collected in the base station, and determine to carry out handover operation according to the switching judgment information of collecting, carry the switch mode indication information in the switching message of the terminal in sending to base station service area, the destination channel that indicating terminal switches, thereby can handle the situation that whole system is all carried out handover operation and part terminal execution handover operation neatly, reduced the service disconnection on the working channel that brings by handover operation, improved the QoS of whole system, improve the availability of frequency spectrum of network, reduced the situation of terminal handoff failure.
As shown in Figure 2, be the structure chart of embodiment of the invention wireless system, comprise base station 21 and terminal 22,
As shown in Figure 3, the structure chart for embodiment of the invention base station comprises:
Collection module 211 is used to collect switching judgment information;
Determination module 212 is used for determining switch mode according to the switching judgment information that collection module 211 is collected, and determines the execution of handover operation according to this switch mode;
Message transmission module 213 is used to send the terminal 22 that handovers messages in the base station service area, and this switchings message is carried the indication information of the destination channel of switch mode that determination module 212 determines and 22 switchings of this terminal.
Wherein, determination module 212 can comprise:
Switching judging submodule 2121 is used to judge whether the switching judgment information that collection module 211 is collected satisfies handover triggering condition;
Pattern is determined submodule 2122, be used for after switching judging submodule 2121 judges that switching judgment information satisfies handover triggering condition, judge whether the switching judgment information that collection module 211 is collected satisfies the switch mode judgment condition, if satisfy, then determine to carry out first switch mode, if the switching judgment information that collection module 211 is collected does not satisfy the switch mode judgment condition, then determine to carry out second switch mode;
Channel is determined submodule 2123, is used for determining the destination channel that the terminal in the base station service area is switched after pattern determines that submodule 2122 is determined switch mode;
Switching terminal is determined submodule 2124, is used for determining to carry out the terminal of switching after pattern determines that submodule 2122 is determined switch mode.
Wherein, this base station can also comprise: switching executing module 214 is used for carrying out handover operation after determination module 212 is determined switch mode.
Wherein, switching executing module 214 can comprise:
The first switch mode implementation sub-module 2141, be used for after pattern determines that submodule 2122 is determined to carry out first switch mode, store the data message before the terminal of serving this base station is switched, and switch to destination channel, behind about fixed response time, on destination channel, recover communication;
The second switch mode implementation sub-module 2142, be used for after pattern determines that submodule 2122 is determined to carry out second switch mode, determine to carry out the terminal of handover operation, interrupt and the described communication of determining to carry out the terminal of handover operation, store the data message before the described terminal of determining to carry out handover operation is switched, recommend data message and communication context before the switching of described base station stored is transmitted in neighbours base station on the destination channel that terminal switches to being operated in the base station.
As shown in Figure 4, the structure chart for embodiment of the invention terminal 22 comprises:
Switching executing module 222, the indication information that is used for the destination channel that the switch mode that carries according to the switching message that message sink module 221 receives and terminal switch is carried out handover operation.
Wherein, switching executing module 222 can comprise: the first switch mode implementation sub-module 2221, be used for when the switching message indicating terminal that message sink module 221 receives is carried out first switch mode, behind about fixed response time, switch to destination channel, recover and the communication that switches to the base station on the destination channel.
Wherein, switching executing module 222 can comprise: the second switch mode implementation sub-module 2222, be used for when the switching message indicating terminal that message sink module 221 receives is carried out second switch mode, on the neighbours base station working channel of base station recommendation, obtain synchronously, insert described neighbours base station, recover communication.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize based on such understanding by the mode that software adds necessary general hardware platform, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (18)
1, a kind of changing method of wireless system is characterized in that, comprising:
Switching judgment information is collected in the base station;
Determine switch mode according to described switching judgment information, and generate switching message according to described switch mode;
Send the described terminal that handovers messages in the described base station service area, described switching message is carried the indication information of the destination channel of described switch mode and the switching of described terminal, indicates described terminal to switch on the destination channel according to described switch mode.
2, the changing method of wireless system according to claim 1 is characterized in that, described switching judgment information comprises the metrical information and/or the network side information of the terminal to report in the described base station service area.
3, the changing method of wireless system according to claim 1 is characterized in that, after switching judgment information is collected in described base station, also comprises:
Handover triggering condition is determined to satisfy according to described switching judgment information in described base station.
4, the changing method of wireless system according to claim 1 is characterized in that, describedly determines switch mode according to switching judgment information, and generates according to described switch mode and to switch message and comprise:
When described switching judgment information satisfies described switch mode judgment condition, first switch mode is determined to carry out in described base station, destination channel is determined to switch in described base station, carry the destination channel that switch described base station in the described switching message, and indicate all interior terminals of described base station service area to switch to the indication information of destination channel.
5, as the changing method of wireless system as described in the claim 4, it is characterized in that, also comprise: when described switching judgment information does not satisfy described switch mode judgment condition, second switch mode is determined to carry out in described base station, the terminal of handover operation is determined to carry out in described base station, carries the neighbours base station working channel that recommend described base station in the described switching message;
The terminal that described transmission is described to be handovered messages in the described base station service area comprises: sends to the described terminal of determining to carry out handover operation and switches message, interrupt and the described communication of determining to carry out the terminal of handover operation.
6, as the changing method of wireless system as described in the claim 5, it is characterized in that, the switching judgment information that collect according to described base station described base station is determined the destination channel that described base station recommends described terminal to switch, and the described base station that described base station is determined recommends the destination channel that described terminal is switched to comprise: away from the neighbours base station working channel of the detected authorized user working channel of described terminal, load less than the neighbours base station working channel of the load of described base station or the neighbours base station working channel on the terminal moving direction in the described base station service area.
7, as the changing method of wireless system as described in the claim 5, it is characterized in that described base station determines that the terminal of carrying out handover operation specifically comprises: the switching judgment information that collect according to described base station described base station determines to carry out the terminal of handover operation,
Described terminal of carrying out handover operation comprises: the terminal that reports described switching judgment information, report described switching judgment information terminal and with described terminal neighboring terminals, or be operated in terminal in the overlapping scope of the service area of the neighbours base station on the destination channel of described base station recommending and described base station service area.
8, as the changing method of wireless system as described in claim 1 or 4, it is characterized in that, after the terminal in described transmission handovers messages to described base station service area, also comprise:
When the switch mode indication information in the described switching message indicates terminal in the described base station service area to switch to destination channel, terminal in the described base station service area inserts the described base station that switches to described destination channel recover communication behind about fixed response time on described destination channel.
9, as the changing method of wireless system as described in the claim 5, it is characterized in that, after the terminal of carrying out handover operation sends described switching message, also comprise described:
When the indication message in the described switching message is carried described base station when recommending destination channel that described terminal switches, data message and communication context before the described terminal of determining to carry out handover operation that described base station stored is transmitted in the neighbours base station of described base station on being operated in described destination channel is switched.
10, as the changing method of wireless system as described in the claim 9, it is characterized in that, after the data message and communication context before the described terminal of determining to carry out handover operation of transmitting described base station stored in the neighbours base station of described base station on being operated in described destination channel is switched, also comprise:
The terminal of carrying out handover operation that described base station is determined obtains to insert described neighbours base station synchronously on the neighbours base station working channel of described base station recommendation.
11, a kind of wireless system is characterized in that, comprising:
The base station, be used to collect switching judgment information, determine switch mode according to described switching judgment information, determine the execution of handover operation according to described switch mode, and transmission handovers messages to the terminal in the described base station service area, described switching message is carried the indication information of the destination channel of described switch mode and the switching of described terminal, indicates described terminal to switch on the destination channel according to described switch mode;
Terminal is used to receive the switching message that described base station sends, and the indication information of the destination channel that switch mode that carries according to described switching message and described terminal are switched is carried out handover operation.
12, a kind of base station is characterized in that, comprising:
Collection module is used to collect switching judgment information;
Determination module is used for determining switch mode according to the switching judgment information that described collection module is collected, and determines the execution of handover operation according to described switch mode;
Message transmission module is used to send the terminal that handovers messages in the described base station service area, and described switching message is carried the indication information of the destination channel of definite switch mode of described determination module and the switching of described terminal.
13, as base station as described in the claim 12, it is characterized in that described determination module comprises:
The switching judging submodule is used to judge whether the switching judgment information that described collection module is collected satisfies handover triggering condition;
Pattern is determined submodule, be used for after described switching judging submodule judges that described switching judgment information satisfies handover triggering condition, judge whether the switching judgment information that described collection module is collected satisfies the switch mode judgment condition, if satisfy, then determine to carry out first switch mode, if the switching judgment information that described collection module is collected does not satisfy described switch mode judgment condition, then determine to carry out second switch mode;
Channel is determined submodule, is used for after described pattern determines that submodule is determined switch mode, determines the destination channel that the terminal in the described base station service area is switched;
Switching terminal is determined submodule, is used for after described pattern determines that submodule is determined switch mode, determines to carry out the terminal of switching.
14, as base station as described in the claim 12, it is characterized in that, also comprise:
Switching executing module is used for after described determination module is determined switch mode, carries out handover operation.
15, as base station as described in the claim 14, it is characterized in that described switching executing module comprises:
The first switch mode implementation sub-module is used for switching to described destination channel after described pattern determines that submodule is determined to carry out first switch mode, is recovering communication behind about fixed response time on described destination channel;
The second switch mode implementation sub-module, be used for after described pattern determines that submodule is determined to carry out second switch mode, determine to carry out the terminal of handover operation, interrupt and the described communication of determining to carry out the terminal of handover operation data message and communication context before the described terminal of determining to carry out handover operation that is operated in that described base station recommends that neighbours base station on the destination channel that terminal switches transmits described base station stored is switched.
16, a kind of terminal is characterized in that, comprising:
The message sink module is used to receive the switching message that described base station sends, and described switching message is carried the indication information of the destination channel of switch mode and the switching of described terminal;
Switching executing module, the indication information that is used for the destination channel that the switch mode that carries according to the switching message that described message sink module receives and described terminal switch is carried out handover operation.
17, as terminal as described in the claim 16, it is characterized in that described switching executing module comprises:
The first switch mode implementation sub-module, when the described terminal of switching message indication that is used for receiving when described message sink module is carried out first switch mode, behind about fixed response time, switch to described destination channel, recover and the communication that switches to the base station on the described destination channel.
18, as terminal as described in the claim 16, it is characterized in that described switching executing module comprises:
The second switch mode implementation sub-module, when the described terminal of switching message indication that is used for receiving when described message sink module is carried out second switch mode, on the neighbours base station working channel of described base station recommendation, obtain to insert described neighbours base station synchronously, recover communication.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101328395A CN101626605B (en) | 2008-07-10 | 2008-07-10 | Method, system and device for switching wireless system |
| PCT/CN2009/070671 WO2010003324A1 (en) | 2008-07-10 | 2009-03-06 | Handoff method, system, base station and terminal in wireless system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101328395A CN101626605B (en) | 2008-07-10 | 2008-07-10 | Method, system and device for switching wireless system |
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| CN101626605A true CN101626605A (en) | 2010-01-13 |
| CN101626605B CN101626605B (en) | 2012-01-04 |
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| CN2008101328395A Expired - Fee Related CN101626605B (en) | 2008-07-10 | 2008-07-10 | Method, system and device for switching wireless system |
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| WO (1) | WO2010003324A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104145499A (en) * | 2012-03-08 | 2014-11-12 | 雅马哈株式会社 | Wireless relay device, wireless relay method, control method, control program, and recording medium |
| CN105122886A (en) * | 2013-03-08 | 2015-12-02 | 诺基亚技术有限公司 | Method and apparatus for handover of device-to-device communications |
| CN106341844A (en) * | 2016-11-30 | 2017-01-18 | 北京邮电大学 | SDN based wireless local area network load balancing method and device the same |
| WO2020124386A1 (en) * | 2018-12-18 | 2020-06-25 | Lenovo (Beijing) Limited | User equipment, base station and method for communication in non-terrestrial network |
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| CN112825583B (en) * | 2019-11-20 | 2022-08-30 | 中国电信股份有限公司 | Method and device for positioning service quality problem and communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571310A (en) * | 2004-04-28 | 2005-01-26 | 北京邮电大学 | Anti-jamming method for WLAN infrastructure network |
| CN100558191C (en) * | 2005-12-30 | 2009-11-04 | 华为技术有限公司 | A kind of method of VoIP Traffic Channel switching controls |
| CN101179821B (en) * | 2006-11-07 | 2010-06-02 | 华为技术有限公司 | Method, device and system for implementing terminal access in wireless communication system |
| CN101212775B (en) * | 2006-12-30 | 2011-04-20 | 华为技术有限公司 | Method and device for handling wireless link failures during switching process |
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2008
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- 2009-03-06 WO PCT/CN2009/070671 patent/WO2010003324A1/en active Application Filing
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| CN104145499A (en) * | 2012-03-08 | 2014-11-12 | 雅马哈株式会社 | Wireless relay device, wireless relay method, control method, control program, and recording medium |
| CN104145499B (en) * | 2012-03-08 | 2018-12-25 | 雅马哈株式会社 | Relay apparatus, radio relay method, control method, control program and recording medium |
| CN109495154A (en) * | 2012-03-08 | 2019-03-19 | 雅马哈株式会社 | Relay apparatus, radio relay method |
| CN109495154B (en) * | 2012-03-08 | 2021-08-24 | 雅马哈株式会社 | Wireless relay device and wireless relay method |
| CN105122886A (en) * | 2013-03-08 | 2015-12-02 | 诺基亚技术有限公司 | Method and apparatus for handover of device-to-device communications |
| CN105122886B (en) * | 2013-03-08 | 2019-03-08 | 诺基亚技术有限公司 | The method and apparatus of switching for device-to-device communication |
| CN106341844A (en) * | 2016-11-30 | 2017-01-18 | 北京邮电大学 | SDN based wireless local area network load balancing method and device the same |
| WO2020124386A1 (en) * | 2018-12-18 | 2020-06-25 | Lenovo (Beijing) Limited | User equipment, base station and method for communication in non-terrestrial network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101626605B (en) | 2012-01-04 |
| WO2010003324A1 (en) | 2010-01-14 |
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