CN102172074A - Method and device for determining target femtocell during handover - Google Patents
Method and device for determining target femtocell during handover Download PDFInfo
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- CN102172074A CN102172074A CN2011800004191A CN201180000419A CN102172074A CN 102172074 A CN102172074 A CN 102172074A CN 2011800004191 A CN2011800004191 A CN 2011800004191A CN 201180000419 A CN201180000419 A CN 201180000419A CN 102172074 A CN102172074 A CN 102172074A
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- base station
- alien frequencies
- microcell base
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
Abstract
A method and a device for determining a target Femtocell during handover are disclosed by embodiments of the present invention. The method mainly includes the following steps: a base station subsystem receives a pseudo pilot Pseudo Number (PN) reported by a terminal, and obtains different frequency PNs of multiple Femtocells corresponding to the pseudo pilot PN according to a correspondence table, then transmits the different frequency PNs of the multiple Femtocells to the terminal, after that, the base station subsystem receives a frequency PN of a Femtocell detected and then determined to reported by the terminal. The base station subsystem obtains the identifier of the Femtocell corresponding to the pseudo pilot PN reported by the terminal and the different frequency PNs according to the correspondence table so as to determine the target Femtocell for terminal handover. The application of the embodiments of the present invention can enable the base station subsystem to identify the target Femtocell for the terminal correctly, and is appropriate for the scenario like a Femtocell without balanced uplink and downlink signal strength.
Description
Technical field
The present invention relates to CDMA (Code Division Multiple Access, code division multiple access inserts) wireless communication technology field, relate in particular to a kind of method and apparatus of in this system, determining target Femtocell (microcell base station) in the terminal switching process.
Background of invention
In the cdma wireless communication system, a PN (Pseudo Number, pseudo noise code) can be distributed in a common base station, and this PN is used to discern the downstream signal of different base station.Stipulate according to the CDMA agreement, there are 512 PN to use in theory at most, but in actual applications, correct demodulation for the downstream signal that guarantees adjacent base station, need PN_INC (PN step size increments) at interval between each PN, for example when PN_INC is 2,3 or 4, correspondingly only there are 256,171 and 118 PN to use.But along with the communication system network scale enlarges, the base station of widespread deployment also increases PN demand number thereupon, satisfy this demand and then need allow the identical PN of base station reusable that keeps at a certain distance away.
Femtocell is a kind of microcell base station (also being known as Home eNodeB or 3G access point), be that each wireless communication system comprises the little base station (Small Cell) that cdma system is released based on mobile broadbandization, intelligent trend in recent years, its base station form is different from the base station (base station of current widespread deployment also is referred to as macrocell base stations with respect to Femtocell) of current widespread deployment, promptly usually at aspects such as specification (number of users/transmitting power), volume, weight all than the little order of magnitude of macrocell base stations.
Along with Femtocell progressively uses, may be deployed with up to a hundred Femtocell (wherein the Femtocell spatial distribution can be the plane, also can be that chpn is for example in the building) in the macrocell base stations coverage in the cdma wireless communication system.Because macrocell base stations and Femtocell need to distribute PN, need between each PN to consider at interval factors such as PN_INC and Femtocell spatial distribution may cause PN not enough and need to carry out PN multiplexing.
In realizing process of the present invention, the inventor finds to occur in the macrocell base stations coverage under the multiplexing identical PN situation of Femtocell, and terminal can be brought following technical problem when macrocell base stations switches to coverage internal object microcell base station: the multiplexing identical PN of a plurality of Femtocell can't determine which the target Femtocell that terminal is switched is.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the invention provides the method and apparatus of determining the target microcell base station in a kind of handoff procedure.
Determine the method for target microcell base station in a kind of handoff procedure, a plurality of microcell base stations all dispose pilot beacon PN and alien frequencies PN in the macrocell base stations coverage, base station sub-system is preserved the mapping table of the sign of pilot beacon PN, the alien frequencies PN of described microcell base station and described microcell base station, and described method specifically comprises:
The pilot beacon PN of the microcell base station that described base station sub-system receiving terminal reports obtains alien frequencies PN with a plurality of microcell base stations of described pilot beacon PN correspondence according to described mapping table, and the alien frequencies PN of described a plurality of microcell base stations is sent to described terminal;
Described base station sub-system receives the alien frequencies PN that determines the microcell base station that reports after described terminal detects;
Described base station sub-system according to described mapping table obtain the pilot beacon PN of described terminal to report and alien frequencies PN the target microcell base station of sign to determine that described terminal is switched of corresponding microcell base station.
Determine the method for target microcell base station in a kind of handoff procedure, comprising:
The pilot beacon PN of terminal to report microcell base station;
Described terminal receives the alien frequencies PN of a plurality of microcell base stations that base station sub-system sends, and to be described base station sub-system obtain from the mapping table of pilot beacon PN, alien frequencies PN and microcell base station sign according to the pilot beacon PN of the described microcell base station of described terminal to report the alien frequencies PN of described a plurality of microcell base stations;
Described terminal is obtained the alien frequencies carrier wave of the microcell base station of described alien frequencies PN correspondence according to the alien frequencies PN of described a plurality of microcell base stations, according to described alien frequencies carrier wave the microcell base station of described correspondence is carried out adjacent area alien frequencies signal search;
Described terminal reports the alien frequencies PN of the pairing microcell base station of alien frequencies signal of intensity maximum to described base station sub-system, so that base station sub-system is determined the target microcell base station that described terminal is switched according to the pilot beacon PN and the alien frequencies PN of described terminal to report.
Determine the device of target microcell base station in a kind of handoff procedure, be arranged in the base station sub-system that described device specifically comprises:
Configuration module is used for all disposing pilot beacon PN and alien frequencies PN to a plurality of microcell base stations in the macrocell base stations coverage, and the mapping table of the sign of pilot beacon PN, the alien frequencies PN of microcell base station and microcell base station is preserved;
Alien frequencies PN issues module, the pilot beacon pseudo noise code PN that is used for the microcell base station that receiving terminal reports, obtain alien frequencies PN with a plurality of microcell base stations of described pilot beacon PN correspondence according to described mapping table, the alien frequencies PN of described a plurality of microcell base stations is sent to described terminal;
The target BS determination module, be used to receive the alien frequencies PN that determines the microcell base station that reports after described terminal detects, obtain the pilot beacon PN of described terminal to report and the target microcell base station of sign to determine that described terminal is switched of the pairing microcell base station of alien frequencies PN according to described mapping table.
The technical scheme that is provided by the embodiment of the invention described above as can be seen, the embodiment of the invention sends to terminal by the alien frequencies PN with a plurality of Femtocell of the pilot beacon PN correspondence of terminal to report, and the target Femtocell that determines terminal in conjunction with the pilot beacon PN and the alien frequencies PN of terminal to report.The target microcell base station that the correct identification terminal of macrocell base stations is switched.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of method flow diagram of in handoff procedure, determining target Femtocell that Fig. 1 provides for the embodiment of the invention one;
A kind of method flow diagram of in handoff procedure, determining target Femtocell that Fig. 2 provides for the embodiment of the invention two;
A kind of indoor Femtocell networking scene schematic diagram that Fig. 3 provides for the embodiment of the invention two;
A kind of concrete structure figure that in handoff procedure, determines the device of target Femtocell that Fig. 4 provides for the embodiment of the invention three;
The another kind that Fig. 5 provides for the embodiment of the invention three is determined the concrete structure figure of the device of target Femtocell in handoff procedure.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one
Present embodiment is applied to CDMA (Code Division Multiple Access, code division multiple access inserts) communication system, and a kind of method of determining target Femtocell (microcell base station) in handoff procedure is provided.
In the present embodiment, base station sub-system comprises a plurality of macrocell base stations and base station controller, wherein can dispose a plurality of Femtocell in the macrocell base stations coverage, and macrocell base stations adopts multi-carrier networking.PN of common macrocell base stations configuration, a plurality of Femtocell in this macrocell base stations coverage all dispose alien frequencies PN and pilot beacon PN; Wherein the PN of the pilot beacon PN of Femtocell and macrocell base stations distributes deployment (distribution can be considered multiplexing) together, and the alien frequencies PN of Femtocell can be from master program.Base station sub-system is preserved the mapping table of the sign (Cell ID) of pilot beacon PN, the alien frequencies PN of Femtocell and Femtocell, and pilot beacon PN is corresponding a plurality of alien frequencies PN usually.Further, for saving Femtocell baseband chip and radio-frequency channel resource, the pilot beacon of Femtocell generally can adopt " frequency hopping " mode to dispose.
Further, the pairing alien frequencies PN of different pilot beacon PN can overlap each other or be different.
Present embodiment provides a kind of method flow of determining target Femtocell in handoff procedure as shown in Figure 1.
The PSMM message that step 11, base station sub-system receiving terminal report (Pilot StrengthMeasurement Message, Pilot Strength Measurement Message), this message carry the pilot beacon PN that terminal detects the Femtocell that reports.
Wherein, but the terminal triggering mode reports above-mentioned PSMM message, for example reports when detecting neighbor cell pilot beacon PN intensity above T_ADD; Also periodically detection mode reports.The pilot beacon PN of the Femtocell that wherein reports may exist a plurality of.
Wherein, base station sub-system can be according to the mapping table of the sign of pilot beacon PN, the alien frequencies PN of the Femtocell that preserves in the above-mentioned pilot beacon PN inquiry base station sub-system and Femtocell, and a plurality of alien frequencies PN of this pilot beacon PN correspondence are obtained in inquiry from mapping table.Wherein the mapping table performance is a kind of logic corresponding relation, and the form of expression can be list/form/logical expression forms such as database.
Wherein, a plurality of alien frequencies PN can send to aforementioned terminals in alien frequencies adjacent area mode.
Wherein, terminal is after the message that comprises a plurality of alien frequencies PN that receives the base station sub-system transmission, obtain the alien frequencies carrier wave of the corresponding Femtocell of corresponding alien frequencies PN according to above-mentioned a plurality of alien frequencies PN, respectively the Femtocell of correspondence is carried out adjacent area alien frequencies signal search according to this alien frequencies carrier wave, the alien frequencies PN of the pairing Femtocell of alien frequencies signal of intensity maximum is reported base station sub-system.
The technical scheme that is provided by the foregoing description as can be seen, this embodiment is by being provided with pilot beacon PN and alien frequencies PN respectively to Femtocell, the alien frequencies PN of a plurality of Femtocell of the pilot beacon PN correspondence of terminal to report is sent to terminal, can make terminal carry out adjacent area alien frequencies signal search according to a plurality of alien frequencies PN.Base station sub-system lumps together the target Femtocell that identifies switching with the pilot beacon PN and the alien frequencies PN junction of terminal to report, and triggering terminal is switched to target Femtocell then.Owing in the identifying of switching judging and target Femtocell, all be the intensity of the downstream signal of each Femtocell of comparison, can be applicable to the unbalanced Femtocell networking of uplink and downlink signals intensity, and the scenes such as Femtocell networking of " frequency hopping " pilot beacon.
Embodiment two
It is example that present embodiment is used with indoor Femtocell networking scene shown in Figure 2.Dispose 7 pilot beacon PN respectively for the Femtocell on floor n and the floor n+1, be A, B, C, D, E, F and G, but guaranteed that the pilot beacon PN of adjacent Femtocell is inequality.Give the sum of alien frequencies PN of the Femtocell configuration on floor n and the floor n+1 many, floor n takies different alien frequencies PN respectively with each Femtocell on the floor n+1.
In this embodiment, it is fewer that the sum of pilot beacon PN disposes, promptly take fewer PN available resources, but the pilot beacon PN that need to guarantee adjacent Femtocell is inequality, and above-mentioned adjacent Femtocell comprises Femtocell that the left and right sides on the horizontal plane is adjacent and the neighbouring Femtocell between the different vertical plane.And that the sum of alien frequencies PN can dispose is many, and alien frequencies PN_INC can be made as 1.
At above-mentioned indoor Femtocell networking scene shown in Figure 2, the mapping table of the sign of the pilot beacon PN of a kind of a plurality of Femtocell that this embodiment provides, alien frequencies PN and Femtocell shown in following table 1,
Table 1
| Femtocell?CellID | Pilot beacon PN | Alien frequencies PN |
| 0x1000 | A | 1 |
| 0x1001 | B | 2 |
| 0x1002 | C | 3 |
| 0x1003 | D | 4 |
| 0x1004 | E | 5 |
| 0x1005 | F | 6 |
| 0x1006 | G | 7 |
| 0x1007 | A | 11 |
| 0x1008 | |
12 |
| 0x1009 | |
13 |
| 0x1010 | |
14 |
| 0x1011 | E | 15 |
| 0x1012 | A | 21 |
| 0x1013 | B | 22 |
| 0x1014 | C | 23 |
| 0x1015 | D | 24 |
| 0x1016 | E | 25 |
| 0x1017 | F | 26 |
| 0x1018 | G | 27 |
| 0x1019 | |
33 |
| 0x1020 | |
34 |
| 0x1021 | E | 35 |
| 0x1022 | F | 36 |
| 0x1023 | G | 37 |
Shown in above-mentioned table 1, Femtocell adds up to 37, and pilot beacon PN adds up to 7, and each pilot beacon PN is respectively A, B, C, D, E, F and G, and the pilot beacon PN that these 7 pilot beacon PN can guarantee adjacent up and down Femtocell is different.Alien frequencies PN adds up to 37, is respectively 1-37.
When the pairing alien frequencies PN of each pilot beacon PN overlapped each other, the mapping table of the sign of the pilot beacon PN of above-mentioned a plurality of Femtocell, alien frequencies PN and Femtocell can be shown in following table 2,
Table 2
| Femtocell?CellID | Pilot beacon PN | Alien frequencies PN |
| 0x1000 | A | 1 |
| 0x1001 | A | 2 |
| 0x1002 | A | 3 |
| 0x1003 | A | 4 |
| 0x1004 | A | 5 |
| 0x1005 | A | 6 |
| 0x1006 | A | 7 |
| 0x1007 | B | 3 |
| 0x1008 | B | 4 |
| 0x1009 | B | 5 |
| 0x1010 | B | 6 |
| 0x1011 | B | 7 |
| 0x1012 | B | 8 |
| 0x1013 | B | 9 |
| 0x1014 | C | 6 |
| 0x1015 | C | 7 |
| 0x1016 | C | 8 |
| 0x1017 | C | 9 |
| 0x1018 | C | 10 |
| 0x1019 | |
11 |
| 0x1020 | |
12 |
| 0x1021 | |
13 |
| 0x1022 | |
14 |
| 0x1023 | C | 15 |
The pilot beacon PN that the PSMM message that step 31, base station sub-system receiving terminal report, this message carry Femtocell is A.
Pass through pilot beacon direct-cut operation flow process in the terminal that is in activated state, macrocell base stations from cdma system is in the process that Femtocell switches, terminal detects the dummy pilot signal intensity of certain Femtocell above after setting thresholding, and terminal to report carries the PSMM message of the pilot beacon PN of above-mentioned certain Femtocell and gives macrocell base stations.
In this embodiment, the pilot beacon PN of above-mentioned certain Femtocell is A.
After base station sub-system receives above-mentioned PSMM message, inquire about the corresponding relation of the sign of pilot beacon PN, the alien frequencies PN of the Femtocell shown in the above-mentioned table 1 and Femtocell according to the pilot beacon PN:A that carries in this PSMM message, obtain a plurality of alien frequencies PN of above-mentioned pilot beacon PN:A correspondence, these a plurality of alien frequencies PN are: 1,11 and 21, and being designated of Dui Ying Femtocell: 0x1000,0x1007 and 0x1012 respectively.
Above-mentioned a plurality of alien frequencies PN:1,11 and 21 that step 33, base station sub-system will inquire are handed down to terminal as the alien frequencies adjacent area.
A plurality of alien frequencies PN that terminal issues according to above-mentioned base station sub-system obtain the alien frequencies carrier wave of each Femtocell, promptly obtain respectively to be designated: the alien frequencies carrier wave of the Femtocell of 0x1000,0x1007 and 0x1012.Terminal is designated according to above-mentioned: the alien frequencies carrier wave of the Femtocell of 0x1000,0x1007 and 0x1012, to being designated: the Femtocell of 0x1000,0x1007 and 0x1012 carries out adjacent area alien frequencies signal search respectively, and the alien frequencies PN of the pairing Femtocell of alien frequencies signal of intensity maximum is reported base station sub-system.Such as, being designated the intensity maximum of alien frequencies signal of the Femtocell of 0x1007, the alien frequencies PN of this Femtocell is 11, then terminal reports base station sub-system with alien frequencies PN:11.
Base station sub-system combines the above-mentioned pilot beacon PN:A and the alien frequencies PN:11 of terminal to report, inquires about the table 1 of above-mentioned preservation, can navigate to the sign of unique target Femtocell: 0x1007.
Then, the alien frequencies direct-cut operation flow process of base station sub-system trigger criteria, base station sub-system is to MSC (MobileSwitching Center, mobile switching centre) sends the sign of carrying above-mentioned target Femtocell: 11 handoff request message, MSC indicate described target Femtocell to set up and described terminal between forward channel after, described terminal switches to described target Femtocell.
The technical scheme that provides by the foregoing description as can be seen, this embodiment is at indoor Femtocell networking scene, the sum of pilot beacon PN configuration fewer promptly takies fewer PN available resources.Base station sub-system lumps together recognition objective Femtocell with the pilot beacon PN and the alien frequencies PN junction of terminal to report, and triggering terminal is switched to target Femtocell then.Owing in the identifying of switching judging and target Femtocell, all be the intensity of the downstream signal of each Femtocell of comparison, can be applicable to the unbalanced Femtocell networking of uplink and downlink signals intensity, and the scenes such as Femtocell networking of " frequency hopping " pilot beacon.
Embodiment three
The embodiment of the invention provides in a kind of handoff procedure the device of determining target Femtocell, and this device is arranged in the base station sub-system in the cdma communication system, and its concrete structure comprises following module as shown in Figure 4:
Configuration module 41 is used for all disposing pilot beacon PN and alien frequencies PN to a plurality of Femtocell in the macrocell base stations coverage, and the mapping table of the sign of pilot beacon PN, the alien frequencies PN of Femtocell and Femtocell is preserved;
Alien frequencies PN issues module 42, the pilot beacon PN that is used for the Femtocell that receiving terminal reports, obtain alien frequencies PN with a plurality of Femtocell of described pilot beacon PN correspondence according to described mapping table, the alien frequencies PN of described a plurality of Femtocell is sent to described terminal;
Target BS determination module 43, be used to receive the alien frequencies PN that determines the Femtocell that reports after described terminal detects, obtain the pilot beacon PN of described terminal to report and the target Femtocell of sign of the pairing Femtocell of alien frequencies PN to determine that described terminal is switched according to described mapping table.
Particularly, described alien frequencies PN issues module 42 and can comprise:
Pilot beacon PN receiver module 421, be used to receive the PSMM message of the pilot beacon PN that carries certain Femtocell of described terminal to report, described PSMM message be dummy pilot signal intensity that described terminal detects certain Femtocell surpassed send to base station sub-system behind the thresholding of setting or described terminal periodic detection after report;
Inquiry and sending module 422, be used for inquiring about the mapping table of the sign of pilot beacon PN, the alien frequencies PN of the Femtocell of described preservation and Femtocell according to the pilot beacon PN that described PSMM message is carried, obtain the alien frequencies PN with a plurality of Femtocell of described pilot beacon PN correspondence, the alien frequencies PN of described a plurality of Femtocell is sent to described terminal as the alien frequencies adjacent area.
Particularly, described target BS determination module 43 can comprise:
Alien frequencies PN receiver module 431, be used to receive the alien frequencies PN of the Femtocell of described terminal to report, the alien frequencies PN of described Femtocell is described terminal is obtained the Femtocell of described alien frequencies PN correspondence according to the alien frequencies PN of a plurality of Femtocell of described base station sub-system transmission an alien frequencies carrier wave, after according to described alien frequencies carrier wave the Femtocell of correspondence being carried out adjacent area alien frequencies signal search, the alien frequencies PN of the pairing Femtocell of alien frequencies signal of intensity maximum;
Inquiry and determination module, be used for according to the pilot beacon PN of the described Femtocell of described terminal to report and the alien frequencies PN of Femtocell, inquire about the mapping table of the sign of pilot beacon PN, the alien frequencies PN of the Femtocell of described preservation and Femtocell, determine the target Femtocell that described terminal is switched, and trigger described terminal and switch to described target Femtocell.
This embodiment also provides in the another kind of handoff procedure recognition device of determining target Femtocell, and this device is arranged in the terminal in the cdma communication system, and its concrete structure comprises following module as shown in Figure 5:
Pilot beacon PN reporting module 51, be used for reporting the pilot beacon PN of Femtocell to base station sub-system, above-mentioned pilot beacon PN can carry by PSMM message, described PSMM message be dummy pilot signal intensity that described terminal detects certain Femtocell surpassed send to base station sub-system behind the thresholding of setting or described terminal periodic detection after report;
Alien frequencies PN receiver module 52, be used to receive the alien frequencies PN of a plurality of Femtocell that base station sub-system sends, to be described base station sub-system obtain from the mapping table of pilot beacon PN, alien frequencies PN and Femtocell sign according to the pilot beacon PN of the described Femtocell of described terminal to report the alien frequencies PN of described a plurality of Femtocell;
Alien frequencies PN reporting module 53 is used for obtaining according to the alien frequencies PN of described a plurality of Femtocell the alien frequencies carrier wave of the Femtocell of described alien frequencies PN correspondence, according to described alien frequencies carrier wave the Femtocell of correspondence is carried out adjacent area alien frequencies signal search; Report the alien frequencies PN of the pairing Femtocell of alien frequencies signal of intensity maximum to described base station sub-system, so that base station sub-system is determined the target Femtocell that described terminal is switched according to the pilot beacon PN and the alien frequencies PN of described terminal to report.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
In sum, the embodiment of the invention sends to terminal by a plurality of alien frequencies PN with the pilot beacon PN correspondence of terminal to report, terminal reports the strongest alien frequencies PN of signal to give base station sub-system by the search of alien frequencies adjacent area, base station sub-system lumps together recognition objective Femtocell with pilot beacon PN and this alien frequencies PN junction of last time, and triggering terminal is switched to target Femtocell then.Therefore, the present invention can be applicable to the unbalanced Femtocell of uplink and downlink signals intensity, and the scenes such as Femtocell networking of " frequency hopping " pilot beacon.
The embodiment of the invention can be saved the PN available resources of CDMA agreement regulation by pilot beacon PN and alien frequencies PN are set to Femtocell, and PN divides simple, intuitive.
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 computer-readable recording 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.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. determine the method for target microcell base station in the handoff procedure, it is characterized in that, a plurality of microcell base stations all dispose pilot beacon pseudo noise code PN and alien frequencies PN in the macrocell base stations coverage, base station sub-system is preserved the mapping table of the sign of pilot beacon PN, the alien frequencies PN of described microcell base station and described microcell base station, and described method specifically comprises:
The pilot beacon PN of the microcell base station that described base station sub-system receiving terminal reports obtains alien frequencies PN with a plurality of microcell base stations of described pilot beacon PN correspondence according to described mapping table, and the alien frequencies PN of described a plurality of microcell base stations is sent to described terminal;
Described base station sub-system receives the alien frequencies PN that determines the microcell base station that reports after described terminal detects;
Described base station sub-system according to described mapping table obtain the pilot beacon PN of described terminal to report and alien frequencies PN the target microcell base station of sign to determine that described terminal is switched of corresponding microcell base station.
2. determine the method for target microcell base station in the handoff procedure according to claim 1, it is characterized in that, the pilot beacon carrier wave of the corresponding microcell base station of described pilot beacon PN, the alien frequencies carrier wave of the corresponding microcell base station of described alien frequencies PN, the sum of described alien frequencies PN is greater than the sum of described pilot beacon PN.
3. determine the method for target microcell base station in the handoff procedure according to claim 1, it is characterized in that the pilot beacon PN of the microcell base station of described terminal to report carries by Pilot Strength Measurement Message.
4. determine the method for target microcell base station in the handoff procedure according to claim 3, it is characterized in that, the pilot beacon PN of a plurality of microcell base stations distributes deployment together in the PN of described macrocell base stations and the described macrocell base stations coverage, and the alien frequencies PN of a plurality of microcell base stations is from master program in the described macrocell base stations coverage.
5. determine the method for target microcell base station in the handoff procedure, it is characterized in that, comprising:
The pilot beacon pseudo noise code PN of terminal to report microcell base station;
Described terminal receives the alien frequencies PN of a plurality of microcell base stations that base station sub-system sends, and to be described base station sub-system obtain from the mapping table of the sign of pilot beacon PN, alien frequencies PN and microcell base station according to the pilot beacon PN of the described microcell base station of described terminal to report the alien frequencies PN of described a plurality of microcell base stations;
Described terminal is obtained the alien frequencies carrier wave of the microcell base station of described alien frequencies PN correspondence according to the alien frequencies PN of described a plurality of microcell base stations, according to described alien frequencies carrier wave the microcell base station of correspondence is carried out adjacent area alien frequencies signal search;
Described terminal reports the alien frequencies PN of the pairing microcell base station of alien frequencies signal of intensity maximum to described base station sub-system, so that base station sub-system is determined the target microcell base station that described terminal is switched according to the pilot beacon PN and the alien frequencies PN of described terminal to report.
6. determine the method for target microcell base station in the handoff procedure according to claim 5, it is characterized in that the pilot beacon PN of terminal to report microcell base station carries by Pilot Strength Measurement Message.
7. determine the device of target microcell base station in the handoff procedure, it is characterized in that be arranged in the base station sub-system, described device specifically comprises:
Configuration module is used for all disposing pilot beacon pseudo noise code PN and alien frequencies PN to a plurality of microcell base stations in the macrocell base stations coverage, and the mapping table of the sign of pilot beacon PN, the alien frequencies PN of microcell base station and microcell base station is preserved;
Alien frequencies PN issues module, the pilot beacon PN that is used for the microcell base station that receiving terminal reports, obtain alien frequencies PN with a plurality of microcell base stations of described pilot beacon PN correspondence according to described mapping table, the alien frequencies PN of described a plurality of microcell base stations is sent to described terminal;
The target BS determination module, be used to receive the alien frequencies PN that determines the microcell base station that reports after described terminal detects, obtain the pilot beacon PN of described terminal to report and the target microcell base station of sign to determine that described terminal is switched of the pairing microcell base station of alien frequencies PN according to described mapping table.
8. determine the device of target microcell base station in the handoff procedure according to claim 7, it is characterized in that described alien frequencies PN issues module and comprises:
Pilot beacon PN receiver module is used to receive the Pilot Strength Measurement Message of the pilot beacon PN that carries certain microcell base station of described terminal to report;
Inquiry and sending module, the pilot beacon PN that is used for carrying according to described Pilot Strength Measurement Message inquires about the mapping table of the sign of pilot beacon PN, the alien frequencies PN of the microcell base station of described preservation and microcell base station, obtain the alien frequencies PN with a plurality of microcell base stations of described pilot beacon PN correspondence, the alien frequencies PN of described a plurality of microcell base stations is sent to described terminal as the alien frequencies adjacent area.
9. according to the device of determining the target microcell base station in claim 7 or the 8 described handoff procedures, it is characterized in that described target BS determination module comprises:
Alien frequencies PN receiver module, be used to receive the alien frequencies PN of the microcell base station of described terminal to report, the alien frequencies PN of described microcell base station is described terminal is obtained the microcell base station of described alien frequencies PN correspondence according to the alien frequencies PN of a plurality of microcell base stations of described base station sub-system transmission an alien frequencies carrier wave, after according to described alien frequencies carrier wave the microcell base station of correspondence being carried out adjacent area alien frequencies signal search, the alien frequencies PN of the pairing microcell base station of alien frequencies signal of intensity maximum;
Inquiry and determination module, be used for according to the pilot beacon PN of the described microcell base station of described terminal to report and the alien frequencies PN of microcell base station, inquire about the mapping table of the sign of pilot beacon PN, the alien frequencies PN of the microcell base station of described preservation and microcell base station, determine the target microcell base station that described terminal is switched, and trigger described terminal and switch to described target microcell base station.
10. determine the device of target microcell base station in the handoff procedure, it is characterized in that be arranged in the terminal, described device specifically comprises:
Pilot beacon PN reporting module is used for reporting to base station sub-system the pilot beacon PN of microcell base station;
Alien frequencies PN receiver module, be used to receive the alien frequencies PN of a plurality of microcell base stations that base station sub-system sends, to be described base station sub-system obtain from the mapping table of the sign of pilot beacon PN, alien frequencies PN and microcell base station according to the pilot beacon PN of the described microcell base station of described terminal to report the alien frequencies PN of described a plurality of microcell base stations;
Alien frequencies PN reporting module is used for obtaining according to the alien frequencies PN of described a plurality of microcell base stations the alien frequencies carrier wave of the microcell base station of described alien frequencies PN correspondence, according to described alien frequencies carrier wave the microcell base station of correspondence is carried out adjacent area alien frequencies signal search; Report the alien frequencies PN of the pairing microcell base station of alien frequencies signal of intensity maximum to described base station sub-system, so that base station sub-system is determined the target microcell base station that described terminal is switched according to the pilot beacon PN and the alien frequencies PN of described terminal to report.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/073073 WO2011107056A2 (en) | 2011-04-20 | 2011-04-20 | Method and device for determining target femtocell during handover |
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| CN102172074A true CN102172074A (en) | 2011-08-31 |
| CN102172074B CN102172074B (en) | 2013-09-11 |
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| CN201180000419.1A Active CN102172074B (en) | 2011-04-20 | 2011-04-20 | Method and device for determining target femtocell during handover |
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| WO (1) | WO2011107056A2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109792379A (en) * | 2016-10-25 | 2019-05-21 | 华为技术有限公司 | A kind of information processing method and device |
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| CN101052205A (en) * | 2006-04-04 | 2007-10-10 | 中兴通讯股份有限公司 | User's terminal switch control method in mobile communication system |
| CN101677450A (en) * | 2008-09-16 | 2010-03-24 | 华为技术有限公司 | Method and device for switching cells and communication system thereof |
| CN101827412A (en) * | 2009-03-04 | 2010-09-08 | 华为技术有限公司 | Cell handover method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100415047C (en) * | 2005-05-31 | 2008-08-27 | 华为技术有限公司 | Alien-frequency hard switching-over method in wide-band CDMA system |
| CN101651961B (en) * | 2008-08-11 | 2012-06-20 | 华为技术有限公司 | Method and terminal for reselecting cell |
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- 2011-04-20 CN CN201180000419.1A patent/CN102172074B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052205A (en) * | 2006-04-04 | 2007-10-10 | 中兴通讯股份有限公司 | User's terminal switch control method in mobile communication system |
| CN101677450A (en) * | 2008-09-16 | 2010-03-24 | 华为技术有限公司 | Method and device for switching cells and communication system thereof |
| CN101827412A (en) * | 2009-03-04 | 2010-09-08 | 华为技术有限公司 | Cell handover method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109792379A (en) * | 2016-10-25 | 2019-05-21 | 华为技术有限公司 | A kind of information processing method and device |
| CN109792379B (en) * | 2016-10-25 | 2021-01-01 | 华为技术有限公司 | Information processing method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011107056A3 (en) | 2012-03-15 |
| CN102172074B (en) | 2013-09-11 |
| WO2011107056A2 (en) | 2011-09-09 |
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