CN102065496B - Switching method and system in femto district as well as user terminal and family base station - Google Patents
Switching method and system in femto district as well as user terminal and family base station Download PDFInfo
- Publication number
- CN102065496B CN102065496B CN 200910237675 CN200910237675A CN102065496B CN 102065496 B CN102065496 B CN 102065496B CN 200910237675 CN200910237675 CN 200910237675 CN 200910237675 A CN200910237675 A CN 200910237675A CN 102065496 B CN102065496 B CN 102065496B
- Authority
- CN
- China
- Prior art keywords
- system message
- user terminal
- target carrier
- information
- revised
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a switching method and system in a femto district which comprises: a user terminal confirms that the system information changes, and the system information is detected in a modification cycle window of the next system information; in the modification cycle window of the next system information, a family base station sends the system information, and the target carrier waveinformation to be switched is informed to the user terminal; and when the modification cycle window of the next system information is finished, the family base station and the user terminal are simultaneously switched to the target carrier wave. The invention simultaneously discloses a user terminal and a family base station. By applying the scheme of the invention, the interruption of the communication process for the user terminal caused by switching can be avoided.
Description
Technical field
The present invention relates to mobile communication technology, particularly the changing method in a kind of Femto cell and system and user terminal and Home eNodeB.
Background technology
Home eNodeB is a kind of small-sized, lower powered cellular basestation, is mainly used in the indoor places such as family and office, can be used as Cellular Networks and replenishes the effective of indoor covering, for the user provides speech and data service.The residential quarter at Home eNodeB place is called Femto cell (Femtocell), referred to as the Femto residential quarter.
In the prior art, usually, have than the Femto residential quarter of strong jamming relation and use different frequency resources, to avoid producing each other interference.Described frequency resource can be to be distributed for each Femto residential quarter unification by a certain network element in the network, also can be arranged according to interference environment etc. by Femto residential quarter oneself.In actual applications, the interference environment of each Femto residential quarter changes semi-static, that is to say, have than the quantity of the Femto residential quarter of strong jamming relation and position etc. also in semi-static changing with each Femto residential quarter, therefore, each employed frequency resource in Femto residential quarter also needs semi-static changing.
Fig. 1 is existing Femto residential quarter employed frequency resource situation of change schematic diagram.As shown in Figure 1, the supposing the system available bandwidth is 10MHz, and the maximum that Home eNodeB and the user terminal (UE, UserEquipment) under it are supported also is 10MHz.Starting stage, Home eNodeB and UE all work on the carrier wave of leftmost 1.4MHz, after after a while, for a certain reason, such as interference environment variation has occured, need to be operated on the carrier wave of leftmost 3MHz, if the carrier wave before and after will changing is called primary carrier and target carrier, that is to say so, Home eNodeB and UE all need to switch on the target carrier.According to existing processing mode, Home eNodeB can at first disconnect the Radio Resource control (RRC with all UE, Radio Resource Control) connect, then reset own operating frequency and bandwidth etc., last rebuliding again with the RRC of all UE is connected, but so, originally the ongoing communication of UE that was in active (ACTIVE) state will be interrupted, such as the user was carrying out voice call originally, so will call drop, experience thereby reduce the user.
Summary of the invention
In view of this, main purpose of the present invention is to provide the changing method in a kind of Femto cell, can avoid the communication process interrupt of user terminal.
Another object of the present invention is to provide the switched system in a kind of Femto cell, can avoid the communication process interrupt of user terminal.
Another purpose of the present invention is to provide a kind of user terminal, can avoid the communication process interrupt of user terminal.
A further object of the present invention is to provide a kind of Home eNodeB, can avoid the communication process interrupt of user terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
Changing method in a kind of Femto cell comprises:
User terminal determines that variation has occured system message, detection system message in next system message is revised period windows;
Revise in the period windows in described next system message, Home eNodeB transmitting system message notifies the target carrier information that is about to switch to described user terminal;
When described next system message was revised the period windows end, described Home eNodeB and described user terminal switched to described target carrier simultaneously.
Preferably, described user terminal determines that system message variation has occured comprised:
Described Home eNodeB sends beep-page message to described user terminal;
Described user terminal determines whether to carry in the described beep-page message system message is revised field, if so, determines that then variation has occured system message.
Preferably, described Home eNodeB transmitting system message, the target carrier information that is about to switch to notified to described user terminal comprise: the system message of the new definition of described Home eNodeB utilization, described target carrier information is notified to described user terminal;
Described user terminal obtains described target carrier information by the system message that resolved detection arrives.
Preferably, for tdd systems, described Home eNodeB transmitting system message, the target carrier information that is about to switch to notified to described user terminal comprise: described Home eNodeB is notified described target carrier information to described user terminal by revising system information block 2;
The system message that described user terminal resolved detection arrives determines whether the carrier information that gets access to consistent with the carrier information of self pre-save, if inconsistent, then with the carrier information that gets access to as target carrier information.
Preferably, described target carrier information comprises operating frequency and the bandwidth of target carrier.
Switched system in a kind of Femto cell comprises:
User terminal, be used for when definite system message changes, in next system message is revised period windows, detect the system message from Home eNodeB, obtain target carrier information, and when described next system message is revised the period windows end, switch to target carrier;
Described Home eNodeB, be used for revising in the period windows in described next system message, transmitting system message notifies the target carrier information that is about to switch to described user terminal, and when described next system message is revised the period windows end, switch to described target carrier.
Preferably, described Home eNodeB is further used for, and sends beep-page message to described user terminal;
Described user terminal determines whether to carry in the described beep-page message system message is revised field, if so, determines that then variation has occured system message.
A kind of user terminal comprises:
Detecting unit is used for when variation has occured definite system message, detects the system message from Home eNodeB in next system message is revised period windows, obtain target carrier information, and notice is to the first switch unit;
Described the first switch unit is used for switching to described target carrier when described next system message is revised the period windows end.
Preferably, further comprise in the described user terminal:
Determining unit is used for receiving the beep-page message from described Home eNodeB, determines whether to carry in the described beep-page message system message and revises field, if so, determines that then variation has occured system message, and notifies described detecting unit.
A kind of Home eNodeB comprises:
Notification unit is used for the informing user terminal system message variation has occured, and in next system message was revised period windows, transmitting system message was notified the target carrier information that is about to switch to described user terminal;
The second switch unit is used for switching to described target carrier when described next system message is revised the period windows end.
Preferably, described notification unit comprises:
The first notice subelement is used for sending beep-page message to described user terminal, and in described beep-page message carrying system message modification field, variation has occured to notify described client terminal system message;
The second notice subelement is used for utilizing the new system message that defines, and perhaps by system information block 2 is made amendment, described target carrier information is notified to described user terminal.
As seen, adopt technical scheme of the present invention, Home eNodeB is notified target carrier information to user terminal by system message in predetermined system message is revised period windows, user terminal detects the system message from the base station in this system message is revised period windows, obtain target carrier information, and when revising the period windows end when this system message, Home eNodeB and user terminal switch to target carrier simultaneously.Compared with prior art, scheme of the present invention triggers user terminal by system message and carries out the alien frequencies switching, thereby guaranteed when system message is revised the period windows end, Home eNodeB and user terminal can switch to target carrier from primary carrier simultaneously, and then have avoided switching the communication process interrupt of the user terminal that causes.
Description of drawings
Fig. 1 is existing Femto residential quarter employed frequency resource situation of change schematic diagram.
Fig. 2 is the flow chart of the inventive method embodiment.
Fig. 3 is the composition structural representation of system embodiment of the present invention.
Fig. 4 is the composition structural representation of UE embodiment of the present invention.
Fig. 5 is the composition structural representation of Home eNodeB embodiment of the present invention.
Embodiment
For problems of the prior art, the changing method in a kind of Femto cell is proposed among the present invention, namely when UE determines that variation has occured system message, in revising period windows, next system message detects the system message from Home eNodeB; Simultaneously, in next system message was revised period windows, Home eNodeB transmitting system message notified the target carrier information that is about to switch to UE; When next system message was revised the period windows end, Home eNodeB and UE switched to target carrier simultaneously.
Wherein, UE is paging (Paging) message that sends by receiving Home eNodeB, determine whether system message variation has occured, such as, revise (systemInfoModification) field if carry system message in the Paging message that receives, determine that then variation has occured system message.
For making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 2 is the flow chart of the inventive method embodiment.As shown in Figure 2, may further comprise the steps:
Step 21: Home eNodeB sends Paging message to UE, wherein carries the systemInfoModification field.
When system message changed, Home eNodeB at first sent Paging message to UE, with notice UE.
Need to prove, Paging message is a public signaling, and Home eNodeB need not it is sent to each UE one by one, only needs to send a Paging message, and all UE under it namely all can get access to.
Step 22:UE determines that the Paging message that receives carries the systemInfoModification field, learns that variation has occured system message.
In this step, UE resolves the Paging message that receives, and determines wherein whether carry the systemInfoModification field, if carry, learns that then variation has occured system message; If do not carry, then illustrative system message does not change.
Step 23:UE calculates zero-time and the concluding time that next system message is revised period windows, and in next system message is revised period windows detection system message.
How to calculate and how to detect and be known in this field, repeat no more.
Different system messages is revised time period corresponding to period windows, and the next time period after the UE current place time period is next system message and revises period windows.
In this step, UE from the zero-time that calculates, detection system message.In addition, need to prove, in actual applications, can shown in this step, calculate simultaneously zero-time and concluding time, also can only calculate in this step zero-time, then after detecting system message, calculate the concluding time, specific implementation is not limit again, and the present embodiment is described only for illustrating.
Step 24: in next system message was revised period windows, Home eNodeB transmitting system message notified the target carrier information that is about to switch to UE.
Described target carrier information comprises the information such as operating frequency and bandwidth.
In this step, Home eNodeB notifies the mode to UE to be target carrier information: define a new system message, utilize this system message that target carrier information is notified to UE, UE is known target carrier information by the system message that resolved detection arrives; Perhaps, Home eNodeB is by revising system information block (SIB, System Information Block) 2, target carrier information is notified to UE, the system message that the UE resolved detection arrives, determine whether the carrier information that gets access to consistent with the carrier information of self pre-save, if inconsistent, then with the carrier information that gets access to as target carrier information.
Wherein, latter event is only applicable to time division duplex (TDD, Time Division Duplex) system.Specifically, be about to operating frequency and the bandwidth that operating frequency (ul-CarrierFreq) among the existing SIB2 and two fields of bandwidth (ul-Bandwidth) are revised as respectively target carrier; Because entrained up-downgoing information is the same on the ul-CarrierFreq in the TDD system and the ul-Bandwidth field, so when the information on these two fields that UE finds this time to get access to and the information inconsistency on these two fields of self pre-save, know that namely variation has occured target carrier information.
Step 25: when next system message was revised the period windows end, Home eNodeB and UE switched to target carrier simultaneously.
So far, namely finished flow process shown in the inventive method embodiment.
Based on said method, Fig. 3 is the composition structural representation of system embodiment of the present invention.As shown in Figure 3, comprising:
UE 31, be used for when variation has occured definite system message, in next system message is revised period windows, detect the system message from Home eNodeB 32, obtain target carrier information, and when revising the period windows end when next system message, switch to target carrier;
Home eNodeB 32 is used in next system message is revised period windows, and transmitting system message notifies the target carrier information that is about to switch to UE 31, and when revising the period windows end when next system message, switches to target carrier.
Wherein, Home eNodeB 32 is further used for, and sends beep-page message to UE 31; UE 31 determines whether to carry in the beep-page message system message is revised field, if so, determines that then variation has occured system message.
Particularly, Fig. 4 is the composition structural representation of UE embodiment of the present invention.As shown in Figure 4, comprising:
Detecting unit 41 is used for when variation has occured definite system message, detects the system message from Home eNodeB in next system message is revised period windows, obtain target carrier information, and notice is to the first switch unit 42;
The first switch unit 42 is used for switching to target carrier when revising the period windows end when next system message.
In addition, also can further comprise among the UE shown in Figure 4: determining unit 43 is used for receiving the beep-page message from Home eNodeB, determine whether to carry in the described beep-page message system message and revise field, if so, determine that then variation has occured system message, and notice detecting unit 41.
Fig. 5 is the composition structural representation of Home eNodeB embodiment of the present invention.As shown in Figure 5, comprising:
The second switch unit 52 is used for switching to target carrier when revising the period windows end when next system message.
Wherein, can further comprise in the notification unit 51:
The first notice subelement 511 is used for sending beep-page message to UE, and in described beep-page message carrying system message modification field, variation has occured with notice UE system message;
The second notice subelement 512 is used for utilizing the new system message that defines, and perhaps by system information block 2 is made amendment, target carrier information is notified to UE.
The specific works flow process of system shown in Fig. 3,4,5 and device embodiment please refer to the respective description in the embodiment of the method shown in Figure 2, repeats no more herein.
In a word, adopt technical scheme of the present invention, trigger UE by system message and carry out the alien frequencies switching, thereby guaranteed when system message is revised the period windows end, Home eNodeB and UE can switch to target carrier from primary carrier simultaneously, and then have avoided switching the communication process interrupt of the UE that causes.
In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the changing method in the Femto cell is characterized in that, the method comprises:
User terminal determines that variation has occured system message, detection system message in next system message is revised period windows;
Revise in the period windows in described next system message, Home eNodeB transmitting system message notifies the target carrier information that is about to switch to described user terminal;
When described next system message was revised the period windows end, described Home eNodeB and described user terminal switched to described target carrier simultaneously;
Wherein, for tdd systems, described Home eNodeB transmitting system message, the target carrier information that is about to switch to notified to described user terminal comprise: described Home eNodeB is notified described target carrier information to described user terminal by the operating frequency in the system information block 2 and two fields of bandwidth being revised as respectively operating frequency and the bandwidth of target carrier;
The system message that described user terminal resolved detection arrives determines whether the information on described two fields of information and self pre-save on described two fields consistent, if inconsistent, then with the information on described two fields as described target carrier information.
2. method according to claim 1 is characterized in that, described user terminal determines that system message variation has occured comprised:
Described Home eNodeB sends beep-page message to described user terminal;
Described user terminal determines whether to carry in the described beep-page message system message is revised field, if so, determines that then variation has occured system message.
3. the switched system in the Femto cell is characterized in that, comprising:
User terminal, be used for when definite system message changes, in next system message is revised period windows, detect the system message from Home eNodeB, obtain target carrier information, and when described next system message is revised the period windows end, switch to target carrier;
Described Home eNodeB, be used for revising in the period windows in described next system message, transmitting system message notifies the target carrier information that is about to switch to described user terminal, and when described next system message is revised the period windows end, switch to described target carrier;
Wherein, for tdd systems, described Home eNodeB is notified described target carrier information to described user terminal by the operating frequency in the system information block 2 and two fields of bandwidth being revised as respectively operating frequency and the bandwidth of target carrier;
The system message that described user terminal resolved detection arrives determines whether the information on described two fields of information and self pre-save on described two fields consistent, if inconsistent, then with the information on described two fields as described target carrier information.
4. system according to claim 3 is characterized in that, described Home eNodeB is further used for, and sends beep-page message to described user terminal;
Described user terminal determines whether to carry in the described beep-page message system message is revised field, if so, determines that then variation has occured system message.
5. a user terminal is characterized in that, comprising:
Detecting unit is used for when variation has occured definite system message, detects the system message from Home eNodeB in next system message is revised period windows, obtain target carrier information, and notice is to the first switch unit;
Described the first switch unit is used for switching to described target carrier when described next system message is revised the period windows end;
Wherein, the system message that described detecting unit resolved detection arrives, determine whether the information on described two fields of information and self pre-save on two fields of operating frequency and bandwidth in the system information block 2 is consistent, if inconsistent, then with the information on described two fields as described target carrier information.
6. user terminal according to claim 5 is characterized in that, further comprises in the described user terminal:
Determining unit is used for receiving the beep-page message from described Home eNodeB, determines whether to carry in the described beep-page message system message and revises field, if so, determines that then variation has occured system message, and notifies described detecting unit.
7. a Home eNodeB is characterized in that, comprising:
Notification unit is used for the informing user terminal system message variation has occured, and in next system message was revised period windows, transmitting system message was notified the target carrier information that is about to switch to described user terminal;
The second switch unit is used for switching to described target carrier when described next system message is revised the period windows end;
Wherein, described notification unit comprises:
The first notice subelement is used for sending beep-page message to described user terminal, and in described beep-page message carrying system message modification field, variation has occured to notify described client terminal system message;
The second notice subelement for the operating frequency and the bandwidth that are revised as respectively target carrier by operating frequency and two fields of bandwidth with system information block 2, is notified described target carrier information to described user terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910237675 CN102065496B (en) | 2009-11-13 | 2009-11-13 | Switching method and system in femto district as well as user terminal and family base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910237675 CN102065496B (en) | 2009-11-13 | 2009-11-13 | Switching method and system in femto district as well as user terminal and family base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102065496A CN102065496A (en) | 2011-05-18 |
| CN102065496B true CN102065496B (en) | 2013-09-18 |
Family
ID=44000536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910237675 Expired - Fee Related CN102065496B (en) | 2009-11-13 | 2009-11-13 | Switching method and system in femto district as well as user terminal and family base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102065496B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014098384A1 (en) * | 2012-12-17 | 2014-06-26 | 엘지전자 주식회사 | Method and terminal for applying changed system information |
| WO2017101018A1 (en) * | 2015-12-15 | 2017-06-22 | 广东欧珀移动通信有限公司 | Frequency-hopping method, terminal, and base station |
| CN109600800B (en) | 2017-09-30 | 2021-10-19 | 华为技术有限公司 | Communication method and apparatus |
| EP3790329B1 (en) * | 2018-05-04 | 2022-06-29 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for updating system information, terminal device, and wireless communication system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188848A (en) * | 2006-11-15 | 2008-05-28 | 大唐移动通信设备有限公司 | A method and system for frequency point transfer |
-
2009
- 2009-11-13 CN CN 200910237675 patent/CN102065496B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188848A (en) * | 2006-11-15 | 2008-05-28 | 大唐移动通信设备有限公司 | A method and system for frequency point transfer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102065496A (en) | 2011-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6314209B2 (en) | Communication apparatus and method | |
| RU2639660C2 (en) | System information signaling to tts-devices | |
| JP6346267B2 (en) | Communication apparatus and method | |
| CN108024278B (en) | mobility management method, user terminal and network side equipment | |
| US20180041889A1 (en) | Wireless communication system | |
| CN105517182A (en) | Random access signaling transmitting method and transmitting device | |
| CN113455027B (en) | Method and apparatus for mobile roaming service | |
| US20180324890A1 (en) | Event-triggered mode switching for a mobile terminal | |
| RU2747990C2 (en) | Method for communication and communication apparatus | |
| EP3345433A1 (en) | Controlling access to a wireless communication network | |
| CN104170437A (en) | Frequency point measuring control method, base station, and user equipment | |
| CN111757357B (en) | Redirection method, network and terminal equipment, communication system and readable storage medium | |
| CN102065496B (en) | Switching method and system in femto district as well as user terminal and family base station | |
| CN110971373A (en) | Configuration method of energy-saving area, base station, terminal and core network | |
| JP6457110B2 (en) | Event-triggered mode switching for mobile terminals | |
| KR101543286B1 (en) | Method for state transition and network equipment | |
| CN104980963A (en) | Method and device for avoiding call drop of user equipment | |
| EP3855777A1 (en) | Announcement for application aware scheduling | |
| EP2945421B1 (en) | Method, apparatus and network device for acquiring adjacent relation between network nodes | |
| CN102348215A (en) | Method for measuring neighbor cell relation and system thereof, and network side equipment | |
| CN116530110A (en) | Client device and network node for efficient disaster handling | |
| JP2016171468A (en) | Communication device, communication system, control method, and communication program | |
| CN106658579B (en) | TAC control method, device, base station and controller | |
| CN109218051B (en) | Method for managing terminal of internet of things, management server, terminal of internet of things and system | |
| JP7392115B2 (en) | Service instruction method and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20211113 |