CN110278588A - A method of coordinating detection terminal handover in more base stations for group system - Google Patents
A method of coordinating detection terminal handover in more base stations for group system Download PDFInfo
- Publication number
- CN110278588A CN110278588A CN201811301084.7A CN201811301084A CN110278588A CN 110278588 A CN110278588 A CN 110278588A CN 201811301084 A CN201811301084 A CN 201811301084A CN 110278588 A CN110278588 A CN 110278588A
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- China
- Prior art keywords
- base station
- mobile terminal
- monitored
- control channel
- uplink signaling
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
The invention discloses a kind of methods that detection terminal handover is coordinated in more base stations for group system.It is the following steps are included: S1: whether base station A detects itself currently the channel device free time, if so, then starting the control channel that idle channel device monitors neighbor base station；S2: when base station A is when the control channel of monitoring receives the uplink signaling of mobile terminal transmission, the uplink signaling received and corresponding signal quality information are sent to corresponding monitored base station by base station A；S3: monitored base station decides whether that this mobile terminal is notified to carry out handover according to the data received, is switched in the control channel of base station A after mobile terminal receives switching command.The present invention notifies mobile terminal skip zone to switch in time when the upchannel signal of control channel where mobile terminal is second-rate, guarantees the communication quality of mobile terminal.
Description
Technical field
The present invention relates to mobile terminal skip zone handoff technique field more particularly to a kind of more base stations associations for group system
The method for adjusting detection terminal handover.
Background technique
To expand area coverage, a group system is generally made of more base stations, can pass through various chains between these base stations
Road technique phase internet.Mobile station has handover movement in this more base station, to meet mobile station is covered in ideal base station
Work in cover region.
Mobile station is moved to the area of coverage overlapping of two base stations, it will handover movement occurs.For example, mobile station is waited for
In the control channel of base station A, and the down going channel signal quality of moment assessment control channel, such as check field intensity value or error code
Rate.Neighbour is begun the evaluation at when finding the downlink signal quality difference of base station A when being moved to the base station B area of coverage from the base station A area of coverage
The down going channel signal quality of nearly base station control channel.When the down going channel letter of discovery neighbor base station (such as base station B) control channel
When number quality is much better than the downlink signal quality of current base station, start handoff procedures, cross-region switching to base station B,
It waits for onto the control channel of base station B.
Due to the variation of topographical position or the influence of building, the area of coverage is simultaneously uneven.Especially uplink and downlink radio channel
Imbalance also happen occasionally, such as somewhere downlink radio channel quality is fine, but up-link wireless channel is poor.Mobile station is moved
It moves this place and checks downlink signal very well without handover.
Existing technology is mobile station when being called, if repeatedly request does not receive response, will do it more area
Hand-off process process finds the better base station control channel of downlink signal.But such case, i.e. upstream request once in a while still can quilts
Base station receives when to response, and handover will not occur for mobile station.
Summary of the invention
In order to solve the above technical problems, The present invention provides a kind of more base stations for group system to coordinate detection terminal
The method of handover, when the upchannel signal of control channel where mobile terminal is second-rate, notice is mobile eventually in time
Handover is held, guarantees the communication quality of mobile terminal.
To solve the above-mentioned problems, the present invention is achieved by the following scheme:
The method that detection terminal handover is coordinated in a kind of more base stations for group system of the invention, comprising the following steps:
Whether S1: base station A detects itself currently the channel device free time, if so, then starting idle channel device monitors neighbouring base
The control channel stood；
S2: when base station A is when the control channel of monitoring receives the uplink signaling of mobile terminal transmission, base station A will be received
Uplink signaling and corresponding signal quality information are sent to corresponding monitored base station；
S3: the uplink signaling that monitored base station is forwarded according to base station A inquires corresponding mobile terminal, if monitored base station does not have
There is the signal matter for receiving the directly received mobile terminal uplink signaling in the mobile terminal uplink signaling or monitored base station
Amount difference and the received mobile terminal uplink signaling of base station A signal quality it is good, then be monitored base station send switching command to
Mobile terminal, includes the information of base station A in switching command, and mobile terminal receives the control that base station A is switched to after switching command
On channel.
In the present solution, being believed when base station A has the channel device free time using the control that idle channel device monitors neighbor base station
Road.The signal quality of mobile terminal uplink signaling it is good or poor, judged by signal strength and the bit error rate.
Such as: when base station A monitors the control channel of base station B, receive uplink signaling (this time shift of mobile terminal transmission
Dynamic terminal is located at the area of coverage overlapping of base station A and base station B), then base station A is by the uplink signaling received and corresponding signal matter
Amount information is sent to base station B, and the uplink signaling that base station B is sent according to base station A inquires corresponding mobile terminal, if base station B
It is not received by the signal quality of the directly received mobile terminal uplink signaling of the mobile terminal uplink signaling or base station B
The signal quality of difference and the received mobile terminal uplink signaling of base station A is good, then base station B notifies mobile terminal skip zone to be switched to
In the control channel of base station A.
This programme can effectively solve to move in the area that certain downlink radio channel quality are fine but up-link wireless channel is poor
Handover does not occur for dynamic terminal or handover is slow, to guarantee that mobile terminal is smooth always the problem of influencing communication quality
Wireless communication.
Preferably, the method for starting the control channel that idle channel device monitors neighbor base station in the step S1 includes
Following steps: there are the partly overlapping neighbor base stations of the area of coverage with base station A for statistics, and the neighbor base station counted is labeled as wait supervise
Base station is listened, and base station to be monitored is ranked up, idle channel device is controlled and monitors according to putting in order to circuit sequentially wait monitor
The control channel of base station.
General base station can have the area of coverage to partly overlap with multiple neighbor base stations, and the idle channel machine quantity of base station is perhaps not
Enough while listening for all neighbor base stations, so the control that periodic cycle monitors neighbor base station in sequence of idle channel device is believed
Road.
Preferably, the time that channel device monitors each base station control channel is identical, is all pre- in a monitoring circulation
If value T.
Preferably, the method that base station to be monitored is ranked up is the following steps are included: according to overlapping with base station A
Area of coverage part sorts from large to small.Overlapping coverage areas is bigger, it is understood that there may be needs the mobile station of handover more.
Preferably, the method that base station to be monitored is ranked up is the following steps are included: according to the position with base station A
Relationship is set along up time needle sort or along inverse time needle sort.
Preferably, the method that base station to be monitored is ranked up the following steps are included: will base station be monitored it is random
Sequence.
Preferably, when the downlink signal quality that mobile terminal discovery is currently located base station control channel is poor, then it is mobile whole
The downlink signal quality of end search neighbor base station control channel, finds out the best base station control channel of downlink signal quality, and more
Area is switched on the base station control channel.
The beneficial effects of the present invention are: the idle channel machine using base station monitors adjacent base station control channel data feedback channel,
When the mobile terminal in area of coverage overlapping carries out up call, its uplink signaling can be listened to, this is believed in base station
It enables and corresponds to signal quality information and corresponding monitored base station is sent to by networked link, be monitored base station according to the number received
According to deciding whether to notify this mobile terminal to carry out handover.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Fig. 2 is the schematic diagram for the overlapping coverage areas that mobile terminal is located at base station A and base station B.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment: the method for detection terminal handover is coordinated in a kind of more base stations for group system of the present embodiment,
As shown in Figure 1, comprising the following steps:
Whether S1: base station A detects itself currently the channel device free time, if so, then starting idle channel device monitors neighbouring base
The control channel stood；
S2: when base station A is when the control channel of monitoring receives the uplink signaling of mobile terminal transmission, base station A will be received
Uplink signaling and corresponding signal quality information are sent to corresponding monitored base station；
S3: the uplink signaling that monitored base station is forwarded according to base station A inquires corresponding mobile terminal, if monitored base station does not have
The mobile terminal uplink signaling is received, or if is monitored the letter of the directly received mobile terminal uplink signaling in base station
Number quality is less than the signal of preset minimum standard (i.e. poor signal quality) and the received mobile terminal uplink signaling of base station A
Quality is greater than preset criterion of acceptability (i.e. signal quality is good), then is monitored base station and sends switching command to mobile terminal, switching
It include the information of base station A in instruction, mobile terminal is switched in the control channel of base station A after receiving switching command.
Start the method for the control channel of idle channel device monitoring neighbor base station in step S1 the following steps are included: statistics
With base station A there are the partly overlapping neighbor base station of the area of coverage, the neighbor base station counted is labeled as base station to be monitored, and will be to
It monitors base station to be ranked up, controls idle channel device according to putting in order and circuit sequentially the control for monitoring base station to be monitored letter
Road.
In a monitoring circulation, the time that channel device monitors each base station control channel is identical, is all preset value T.
When the downlink signal quality that mobile terminal discovery is currently located base station control channel is poor, then mobile terminal to search is neighbouring
The downlink signal quality of base station control channel finds out the best base station control channel of downlink signal quality, and is handed over to this
On base station control channel.
In the present solution, being believed when base station A has the channel device free time using the control that idle channel device monitors neighbor base station
Road.General base station can have the area of coverage to partly overlap with multiple neighbor base stations, and the idle channel machine quantity of base station is perhaps not same enough
When monitor all neighbor base stations, so periodic cycle monitors the control channel of neighbor base station to idle channel device in sequence.
The signal quality of mobile terminal uplink signaling it is good or poor, judged by signal strength and the bit error rate.Work as signal strength
Greater than preset value K1 and when the bit error rate is less than preset value H1, judge that the signal quality of uplink signaling is good, when signal strength is less than in advance
If value K2 or the bit error rate are greater than preset value H2, the poor signal quality of uplink signaling, K1 > K2, H1 < H2 are judged.
Such as: as shown in Fig. 2, mobile terminal M is located at the overlapping coverage areas of base station A and base station B.When base station A monitors base station B
Control channel when, receive the uplink signaling of mobile terminal M transmission, then base station A is by the uplink signaling received and corresponding
Signal quality information is sent to base station B, and the uplink signaling that base station B is sent according to base station A inquires mobile terminal M, if base station B
Be not received by mobile terminal M uplink signaling, or if the directly received mobile terminal M uplink signaling of base station B signal matter
The signal quality of amount difference and the received mobile terminal M uplink signaling of base station A is good, then base station B notifies mobile terminal M handover
Onto the control channel of base station A.
This programme can effectively solve to move in the area that certain downlink radio channel quality are fine but up-link wireless channel is poor
Handover does not occur for dynamic terminal or handover is slow, to guarantee that mobile terminal is smooth always the problem of influencing communication quality
Wireless communication.
It will base station be monitored there are three ways to being ranked up:
(1) sorting from large to small according to the overlapping coverage areas part with base station A.Overlapping coverage areas is bigger, it is understood that there may be needs
The mobile station of handover is more.
(2) according to the positional relationship with base station A along up time needle sort or along inverse time needle sort.
(3) will base station be monitored it is randomly ordered.
Administrative staff can treat to any one for setting in above-mentioned three kinds of methods of base station A as needed to monitor base station and carries out
Sequence.
Claims (7)
1. a kind of method that detection terminal handover is coordinated in more base stations for group system, which is characterized in that including following
Step:
Whether S1: base station A detects itself currently the channel device free time, if so, then starting idle channel device monitors neighbouring base
The control channel stood；
S2: when base station A is when the control channel of monitoring receives the uplink signaling of mobile terminal transmission, base station A will be received
Uplink signaling and corresponding signal quality information are sent to corresponding monitored base station；
S3: the uplink signaling that monitored base station is forwarded according to base station A inquires corresponding mobile terminal, if monitored base station does not have
There is the signal matter for receiving the directly received mobile terminal uplink signaling in the mobile terminal uplink signaling or monitored base station
Amount difference and the received mobile terminal uplink signaling of base station A signal quality it is good, then be monitored base station send switching command to
Mobile terminal, includes the information of base station A in switching command, and mobile terminal receives the control that base station A is switched to after switching command
On channel.
2. the method that detection terminal handover is coordinated in a kind of more base stations for group system according to claim 1,
It is characterized in that, starting the method that idle channel device monitors the control channel of neighbor base station in the step S1 includes following step
Rapid: there are the partly overlapping neighbor base stations of the area of coverage with base station A for statistics, and the neighbor base station counted is labeled as base to be monitored
It stands, and base station to be monitored is ranked up, control idle channel device and monitor base station to be monitored according to putting in order to circuit sequentially
Control channel.
3. the method that detection terminal handover is coordinated in a kind of more base stations for group system according to claim 2,
It is characterized in that, the time that channel device monitors each base station control channel is identical, is all preset value T in a monitoring circulation.
4. the method that detection terminal handover is coordinated in a kind of more base stations for group system according to claim 2,
It is characterized in that, the method that base station to be monitored is ranked up is the following steps are included: according to the overlapping coverage areas with base station A
Partial sorts from large to small.
5. the method that detection terminal handover is coordinated in a kind of more base stations for group system according to claim 2,
It is characterized in that, the method that base station to be monitored is ranked up is the following steps are included: according to the positional relationship with base station A
Along up time needle sort or along inverse time needle sort.
6. the method that detection terminal handover is coordinated in a kind of more base stations for group system according to claim 2,
It is characterized in that, the method that base station to be monitored is ranked up the following steps are included: will base station be monitored it is randomly ordered.
7. detection terminal is coordinated in a kind of more base stations for group system according to claim 1 or 2 or 3 or 4 or 5 or 6
The method of handover, which is characterized in that when mobile terminal discovery be currently located base station control channel downlink signal quality it is poor,
The then downlink signal quality of mobile terminal to search neighbor base station control channel finds out the best base station control letter of downlink signal quality
Road, and be handed over on the base station control channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301084.7A CN110278588A (en) | 2018-11-02 | 2018-11-02 | A method of coordinating detection terminal handover in more base stations for group system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811301084.7A CN110278588A (en) | 2018-11-02 | 2018-11-02 | A method of coordinating detection terminal handover in more base stations for group system |
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| CN110278588A true CN110278588A (en) | 2019-09-24 |
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| CN201811301084.7A Pending CN110278588A (en) | 2018-11-02 | 2018-11-02 | A method of coordinating detection terminal handover in more base stations for group system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175327A (en) * | 2006-11-01 | 2008-05-07 | 日本电气株式会社 | Handover control system, handover control method, mobile communication system and base station |
| CN102625388A (en) * | 2011-01-28 | 2012-08-01 | 华为技术有限公司 | Switching method, base station and system for the same |
| CN104519512A (en) * | 2013-09-30 | 2015-04-15 | 重庆重邮信科通信技术有限公司 | Method for automatically detecting residential areas in neighbor relations |
-
2018
- 2018-11-02 CN CN201811301084.7A patent/CN110278588A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175327A (en) * | 2006-11-01 | 2008-05-07 | 日本电气株式会社 | Handover control system, handover control method, mobile communication system and base station |
| CN102625388A (en) * | 2011-01-28 | 2012-08-01 | 华为技术有限公司 | Switching method, base station and system for the same |
| CN104519512A (en) * | 2013-09-30 | 2015-04-15 | 重庆重邮信科通信技术有限公司 | Method for automatically detecting residential areas in neighbor relations |
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Application publication date: 20190924 |
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