CN101577920A - Cell switching method and device - Google Patents
Cell switching method and device Download PDFInfo
- Publication number
- CN101577920A CN101577920A CNA2008100972633A CN200810097263A CN101577920A CN 101577920 A CN101577920 A CN 101577920A CN A2008100972633 A CNA2008100972633 A CN A2008100972633A CN 200810097263 A CN200810097263 A CN 200810097263A CN 101577920 A CN101577920 A CN 101577920A
- Authority
- CN
- China
- Prior art keywords
- bandwidth
- terminal
- target cell
- cell
- origin
- 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.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a cell switching method used for the switching between a cell-of-origin and a target cell by a terminal. The method comprises the following steps: the cell-of-origin transmits a switching request to the target cell and carries bandwidth information of the terminal in the switching request; the target cell distributes the bandwidth for the terminal according to the bandwidth information of the terminal; and the target cell transmits a switching request response to the cell-of-origin and carries the bandwidth distributed by the terminal in the switching request response. The invention also discloses a cell switching device. The invention realizes that the terminal performs the switching among the cells under the condition that the terminal is unequal to the bandwidth of a network side.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of cell switching method and device.
Background technology
The 4th third-generation mobile communication system has very high spectrum efficiency, in the 4th third-generation mobile communication system, mobile subscriber's message transmission rate can reach 100Mbit/s, the stationary user message transmission rate can reach 1Gbit/s, and, for the system bandwidth of each sub-district is set flexibly according to business demand, the bandwidth of the 4th third-generation mobile communication system can be up to 100MHz, and adaptive-bandwidth.Because the needs of mobile communication system smooth evolution, in the regular hour, the 4th third-generation mobile communication system and 3-G (Generation Three mobile communication system) (for example synchronous code division multiple access system of time-division or 802.16E system etc.) will be compatible or coexist.
The bandwidth of terminal and network side equates in the existing communication system (for example long evolving system), and it inserts employing cell switching method as shown in Figure 1 at random, as shown in Figure 1, comprises the steps:
Step S102, the cell-of-origin command terminal carries out adjacent cell detection process, the relevant information of this cell-of-origin and adjacent sub-district and the resource that reports of measurement report are sent to this terminal, wherein, the cell-of-origin also can be called Serving cell, be the sub-district for above-mentioned Terminal Service, adjacent sub-district is the one or more sub-districts that are different from the cell-of-origin;
Step S104, terminal detects above-mentioned one or more adjacent sub-district, and measurement result is reported the cell-of-origin;
Step S106, according to switching accurate side, the gateway decision switches to Target cell (this Target cell is a sub-district the above-mentioned adjacent sub-district) with this terminal from the cell-of-origin, then the cell-of-origin sends handoff request to Target cell, and carries the ID of related service information and Target cell;
Step S108, Target cell is after overload is weighed, send switching request response to the cell-of-origin, comprise C-RNTI (Cell Radio NetworkTemporary Identifier, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) and access information etc. in this switching request response;
Step S110, the cell-of-origin issues above-mentioned switching request response to terminal;
Step S112, the cell-of-origin sends switching command to terminal;
Step S114, cell-of-origin and Target cell carry out information interaction, for example: the contextual information of terminal etc., simultaneously, terminal is carried out down-going synchronous at Target cell;
Step S116, after down-going synchronous was finished, the access information that terminal utilizes Target cell to distribute was done to insert at random, finishes uplink synchronous and resource bid;
Step S118, Target cell is to the ascending resource information and timing advance (Timing Advance the abbreviates TA as) information of terminal issuing service;
Step S120, the terminal check handover success, and give Target cell with the handover success responsive feedback, carry out communication between terminal and the Target cell.
Above-mentioned implementation step has provided the method that switched the sub-district when terminal equated with the network side bandwidth, but under terminal and the unequal situation of network side bandwidth, how to realize that the switching of minizone does not have corresponding solution.
Summary of the invention
Consider the switching that under terminal and the unequal situation of network side bandwidth, how to realize the minizone that exists in the correlation technique, do not provide the problem of concrete solution and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of cell switching method and device, to address the above problem.
According to an aspect of the present invention, provide a kind of cell switching method, this method is used for terminal and switches between cell-of-origin and Target cell.
Cell switching method according to the embodiment of the invention comprises: the cell-of-origin sends handoff request to Target cell, and in handoff request the bandwidth information of carried terminal; Target cell is the terminal distribution bandwidth according to the bandwidth information of terminal; Target cell sends switching request response to the cell-of-origin, and carries the bandwidth information into terminal distribution in switching request response.
Wherein, above-mentioned Target cell is that the operation of terminal distribution bandwidth is specially according to the bandwidth information of terminal: it is wide in advance system bandwidth to be divided into a plurality of subbands that the bandwidth width equates; Target cell is according to the bandwidth information of terminal, with the wide terminal of distributing to of one or more subbands.
Preferably, terminal is carried out down-going synchronous at Target cell on the bandwidth of its distribution.
Preferably, the access information of carried terminal in the above-mentioned switching request response.
Preferably, terminal inserts on the bandwidth of its distribution at Target cell at random according to access information, finishes uplink synchronous and resource bid.
According to a further aspect in the invention, provide a kind of sub-district switching device shifter, this device is used for terminal and switches between cell-of-origin and Target cell.
Sub-district switching device shifter according to the embodiment of the invention comprises: the handoff request module, be positioned at the cell-of-origin side, be used for sending handoff request to Target cell, and in handoff request the bandwidth information of carried terminal; Bandwidth allocation module is positioned at the Target cell side, and the bandwidth information that is used for the terminal of carrying according to handoff request is the terminal distribution bandwidth; The switching request response module is positioned at the Target cell side, is used for sending switching request response to the cell-of-origin, and carries the bandwidth information into terminal distribution in switching request response.
Further, this device also comprises: bandwidth is divided module, is positioned at the Target cell side, be used for system bandwidth divide that the bandwidth width equates for a plurality of subbands wide.
Preferably, above-mentioned bandwidth allocation module is used for the bandwidth information according to terminal, with the wide terminal of distributing to of one or more subbands.
Further, this device also comprises: the down-going synchronous module, be positioned at end side, and be used for terminal and carry out down-going synchronous on the bandwidth of its distribution at Target cell.
Preferably, above-mentioned handoff request module also is used for the access information at the switching request response carried terminal.
Further, this device also comprises: the uplink synchronous module, be positioned at end side, and be used for terminal and insert at random on the bandwidth of its distribution at Target cell according to access information, finish uplink synchronous and resource bid.
By above-mentioned at least one technical scheme of the present invention, solved the problem that how terminal is switched in the minizone under terminal and the unequal situation of network side bandwidth, realized the handoff procedure of the little bandwidth terminals of large bandwidth system.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the cell switching method of correlation technique;
Fig. 2 is the flow chart according to the cell switching method of the inventive method embodiment;
Fig. 3 is the detailed process flow chart according to the cell switching method of the inventive method embodiment;
Fig. 4 is the schematic diagram according to the sub-district switching device shifter of the embodiment of the invention;
Fig. 5 is the detailed structure schematic diagram according to the sub-district switching device shifter of the embodiment of the invention.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
The bandwidth of considering the 4th third-generation mobile communication system is bigger, but general terminal bandwidth is less relatively, in this case, if will carrying out the minizone, terminal switches, existing sub-district handover scheme can cause the increase of handover delay, based on this, the present invention proposes at the handover scheme of the terminal under terminal and the unequal situation of network side bandwidth in the minizone.
Method embodiment
According to the embodiment of the invention, a kind of cell switching method is provided, be used for terminal and between cell-of-origin and Target cell, switch.
Fig. 2 is the flow chart according to the cell switching method of the embodiment of the invention, and as shown in Figure 2, this method may further comprise the steps:
Step S202, the cell-of-origin sends handoff request to Target cell, and in handoff request the bandwidth information of carried terminal;
Step S204, Target cell is the terminal distribution bandwidth according to the bandwidth information of terminal;
Step S206, Target cell sends switching request response to the cell-of-origin, and carries the bandwidth information into terminal distribution in switching request response.
By the technical scheme that the embodiment of the invention provides, realized the handoff procedure of the little bandwidth terminals of large bandwidth system.
Wherein, in step S204, it is wide in advance system bandwidth to be divided into a plurality of subbands, and wherein, the wide bandwidth width of each subband equates that correspondingly, Target cell is according to the bandwidth information of this terminal, with the wide terminal of distributing to of one or more subbands.
Preferably, after step S206, terminal is carried out down-going synchronous at Target cell on the bandwidth of its distribution.
Preferably, in step S202, go back the access information of carried terminal in the switching request response, correspondingly, after step S206, this terminal inserts on the bandwidth of its distribution at Target cell at random according to this access information, finishes uplink synchronous and resource bid.
Fig. 3 is the detailed process flow chart according to the cell switching method of the inventive method embodiment, and as shown in Figure 3, this method may further comprise the steps:
Step S302, the cell-of-origin command terminal carries out adjacent cell detection process, the relevant information of this cell-of-origin and adjacent sub-district and the resource that reports of measurement report are sent to this terminal, wherein, the cell-of-origin also can be called Serving cell, be the sub-district for above-mentioned Terminal Service, adjacent sub-district is the one or more sub-districts that are different from the cell-of-origin;
Step S304, terminal detects above-mentioned one or more adjacent sub-district, and measurement result is reported the cell-of-origin;
Step S306, according to switching accurate side, the gateway decision switches to Target cell with this terminal from the cell-of-origin, and then the cell-of-origin sends handoff request to Target cell, carries the ID of related service information, Target cell and the bandwidth information of terminal etc. in this handoff request;
Step S308, Target cell send switching request response to the cell-of-origin after overload is weighed, comprise the bandwidth information of C-RNTI, access information and above-mentioned terminal etc. in this switching request response;
Step S310, the cell-of-origin issues above-mentioned switching request response to terminal;
Step S312, the cell-of-origin sends switching command to terminal;
Step S314, cell-of-origin and Target cell carry out information interaction, for example: the contextual information of terminal etc., simultaneously, terminal is carried out down-going synchronous at Target cell under the bandwidth of its distribution;
Step S316, after down-going synchronous was finished, terminal was done to insert at random for utilizing above-mentioned access information under the bandwidth of its distribution at Target cell, finishes uplink synchronous and resource bid;
Step S318, Target cell is to the ascending resource information and TA (timing advance) information of terminal issuing service;
Step S320, the terminal check handover success, and give Target cell with the handover success responsive feedback, carry out communication between terminal and the Target cell.
By top description as can be seen, the handoff procedure support terminal of the little bandwidth terminals of large bandwidth system that the embodiment of the invention provides is in the arbitrarily switching of frequency range, and can significantly reduce handover delay, and frequency range can more rational equilibrium shares out the work.
Device embodiment
Fig. 4 shows the sub-district switching device shifter schematic diagram according to the embodiment of the invention, and this device mainly comprises:
Handoff request module 10 is positioned at the cell-of-origin side, be used for sending handoff request to Target cell, and in handoff request the bandwidth information of carried terminal;
Switching request response module 30 is positioned at the Target cell side, can be connected to bandwidth allocation module 20, is used for sending switching request response to the cell-of-origin, and carries bandwidth allocation module 20 be the bandwidth information of terminal distribution in switching request response.
By said apparatus, can realize the handoff procedure of the little bandwidth terminals of large bandwidth system.
Preferably, as shown in Figure 5, the device of the embodiment of the invention comprises that also bandwidth divides module 40, is positioned at the Target cell side, and it is wide to be used for that system bandwidth is divided into a plurality of subbands, and bandwidth is divided module 40 and is connected to bandwidth allocation module 20.
Preferably, in end side, the device that the embodiment of the invention provides also comprises down-going synchronous module 50, is used for terminal and carries out down-going synchronous at Target cell on the bandwidth of its distribution.
Preferably, handoff request module 10 also is used for the access information at the switching request response carried terminal, at this moment, in end side, the device that the embodiment of the invention provides also comprises uplink synchronous module 60, be used for terminal and insert at random on the bandwidth of its distribution at Target cell, finish uplink synchronous and resource bid according to access information.
As mentioned above, by means of cell switching method provided by the invention and/or device, realized the handoff procedure of the little bandwidth terminals of large bandwidth system, its support terminal is the switching of frequency range arbitrarily in system, can significantly reduce handover delay, and the equilibrium frequency range that shares out the work reasonably.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (11)
1. a cell switching method is used for terminal and switches between cell-of-origin and Target cell, it is characterized in that described method comprises:
Described cell-of-origin sends handoff request to described Target cell, and carries the bandwidth information of described terminal in described handoff request;
Described Target cell is described terminal distribution bandwidth according to the bandwidth information of described terminal;
Described Target cell sends switching request response to described cell-of-origin, and carries the bandwidth information into described terminal distribution in described switching request response.
2. method according to claim 1 is characterized in that, described Target cell is that the operation of described terminal distribution bandwidth is specially according to the bandwidth information of described terminal:
It is wide in advance system bandwidth to be divided into the equal a plurality of subbands of bandwidth width;
Described Target cell is according to the bandwidth information of described terminal, distributes to described terminal with one or more subbands are wide.
3. method according to claim 1 and 2 is characterized in that, described method also comprises:
Described terminal is carried out down-going synchronous at described Target cell on the bandwidth of its distribution.
4. method according to claim 1 and 2 is characterized in that, carries the access information of described terminal in the described switching request response.
5. method according to claim 4 is characterized in that, described method also comprises:
Described terminal inserts on the bandwidth of its distribution at described Target cell at random according to described access information, finishes uplink synchronous and resource bid.
6. a sub-district switching device shifter is used for terminal and switches between cell-of-origin and Target cell, it is characterized in that, comprising:
The handoff request module is positioned at the cell-of-origin side, is used for sending handoff request to described Target cell, and carries the bandwidth information of described terminal in described handoff request;
Bandwidth allocation module is positioned at the Target cell side, and the bandwidth information that is used for the described terminal of carrying according to described handoff request is described terminal distribution bandwidth;
The switching request response module is positioned at the Target cell side, is used for sending switching request response to described cell-of-origin, and carries the bandwidth information into described terminal distribution in described switching request response.
7. device according to claim 6 is characterized in that, described device comprises that also bandwidth divides module, is positioned at the Target cell side, and it is wide to be used for that system bandwidth is divided into a plurality of subbands that the bandwidth width equates.
8. device according to claim 7 is characterized in that described bandwidth allocation module is used for the bandwidth information according to described terminal, distributes to described terminal with one or more subbands are wide.
9. according to each described device among the claim 6-8, it is characterized in that described device also comprises the down-going synchronous module, is positioned at end side, be used for described terminal and carry out down-going synchronous on the bandwidth of its distribution at described Target cell.
10. according to each described device among the claim 6-8, it is characterized in that described handoff request module also is used for carrying in described switching request response the access information of described terminal.
11. device according to claim 10, it is characterized in that described device also comprises the uplink synchronous module, is positioned at end side, be used for described terminal and insert at random on the bandwidth of its distribution at described Target cell, finish uplink synchronous and resource bid according to described access information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100972633A CN101577920B (en) | 2008-05-06 | 2008-05-06 | Cell switching method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100972633A CN101577920B (en) | 2008-05-06 | 2008-05-06 | Cell switching method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101577920A true CN101577920A (en) | 2009-11-11 |
| CN101577920B CN101577920B (en) | 2012-05-09 |
Family
ID=41272665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100972633A Expired - Fee Related CN101577920B (en) | 2008-05-06 | 2008-05-06 | Cell switching method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101577920B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249114A (en) * | 2013-04-03 | 2013-08-14 | 大唐移动通信设备有限公司 | Remote access method and system for group intranet |
| WO2018024011A1 (en) * | 2016-08-05 | 2018-02-08 | 电信科学技术研究院 | Random access method and device |
| CN111373802A (en) * | 2017-11-17 | 2020-07-03 | 上海诺基亚贝尔股份有限公司 | Communication method and communication device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4848890B2 (en) * | 2006-08-23 | 2011-12-28 | 日本電気株式会社 | Mobile communication system and method, and base station used therefor |
| CN100461970C (en) * | 2006-11-30 | 2009-02-11 | 中兴通讯股份有限公司 | A rapid switching method between a number of mobile multimedia broadcasting networks |
-
2008
- 2008-05-06 CN CN2008100972633A patent/CN101577920B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103249114A (en) * | 2013-04-03 | 2013-08-14 | 大唐移动通信设备有限公司 | Remote access method and system for group intranet |
| CN103249114B (en) * | 2013-04-03 | 2016-03-23 | 大唐移动通信设备有限公司 | Group's Intranet strange land cut-in method and system |
| WO2018024011A1 (en) * | 2016-08-05 | 2018-02-08 | 电信科学技术研究院 | Random access method and device |
| CN107690173A (en) * | 2016-08-05 | 2018-02-13 | 电信科学技术研究院 | A kind of accidental access method and equipment |
| US11503643B2 (en) | 2016-08-05 | 2022-11-15 | Datang Mobile Communications Equipment Co., Ltd. | Random access method and device |
| CN111373802A (en) * | 2017-11-17 | 2020-07-03 | 上海诺基亚贝尔股份有限公司 | Communication method and communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101577920B (en) | 2012-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101621723B (en) | Wavelength allocation method of WDM-PON system | |
| CN107926072A (en) | Connect the method and apparatus established | |
| CN104640099A (en) | Business resource sharing method, business resource sharing device and terminal | |
| CN100591160C (en) | Wireless resource distribution method and apparatus | |
| CN100407816C (en) | Calling method of group call | |
| CN100583729C (en) | Method for indicating the packet data channel used by the terminal to send the data | |
| CN101577920B (en) | Cell switching method and device | |
| CN103220111A (en) | Method and equipment for allocating common channel carrier resources | |
| CN101212791A (en) | Method and system for customer premise equipment to access network equipment | |
| CN100452899C (en) | Transmission optimization in wireless base station system based on load share | |
| CN103796322A (en) | Trunked communication system adopting time division multiple access, device and channel allocation method | |
| CN103037540A (en) | Method, device and system of releasing group resource | |
| CN102740441A (en) | Method and system for power allocation among carriers of TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) cells | |
| CN102143582B (en) | Paging method, paging system, network equipment and terminal | |
| CN102883445A (en) | Apparatus and method for providing notification of allocation of communication resources by using temporary flow set indicator | |
| CN103079208A (en) | Base band resource dynamic sharing method and base band resource dynamic sharing device | |
| CN101521889A (en) | Method and system for high bandwidth system communication channel design | |
| CN106331904A (en) | Method of distributing wavelength channels in passive optical network, optical line terminal and system | |
| CN101137198A (en) | Random access probe transmitting method and apparatus | |
| CN101610581B (en) | Terminal identifier distribution method and communication system | |
| CN101777942B (en) | Data transmission method, system and device for multi-cooperation district | |
| CN102378220B (en) | Method and device for assigning cell index in wireless network | |
| CN100369500C (en) | Base station controller and its communication method | |
| CN100583687C (en) | Methods and systems for communicating data at radio base station nodes that provide efficient allocation of control timeslots | |
| CN101453789B (en) | Method and system for called continuous time for cluster group call |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180102 Address after: 221000 Jiangsu province Xuzhou Industrial Park Xu Jia fast corridor North Patentee after: JIANGSU NOON CROP SCIENCE CO., LTD. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong high tech Industrial Park, ZTE building Patentee before: ZTE Corporation |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20190506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |