CN101217801B - A same frequency interference selection method applied in N frequency point networking system - Google Patents
A same frequency interference selection method applied in N frequency point networking system Download PDFInfo
- Publication number
- CN101217801B CN101217801B CN2008100022876A CN200810002287A CN101217801B CN 101217801 B CN101217801 B CN 101217801B CN 2008100022876 A CN2008100022876 A CN 2008100022876A CN 200810002287 A CN200810002287 A CN 200810002287A CN 101217801 B CN101217801 B CN 101217801B
- Authority
- CN
- China
- Prior art keywords
- frequency
- cell
- channel
- same
- cell list
- 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
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
本发明提供一种用于N频点组网系统中的选择同频干扰小区的方法，其包括以下步骤：一终端接收网络端发送的广播消息或测量控制消息，并存储其中的同频小区列表和异频小区列表；该终端比较同频小区列表中与异频小区列表中的小区参数标识符，将同频小区列表中具有与异频小区列表相同小区参数标识符的小区，用相应的异频小区列表中所对应的主频点的测量结果作为该同频干扰小区的测量结果；从而降低了因为同频辅频点没有导频信号造成的测量不准导致的同频干扰小区漏选的概率。在网络端同时配置同频测量和异频测量的情况下，因为减少了由于同频去干扰算法对同频小区列表中辅频点的测量，而减少了终端测量的工作量，同时可以更准确选择出同频干扰小区。
This invention provides a method for selecting co-channel interfering cells in an N-frequency network system, comprising the following steps: a terminal receives a broadcast message or measurement control message sent by a network end, and stores a co-channel cell list and a cross-channel cell list therein; the terminal compares the cell parameter identifiers in the co-channel cell list and the cross-channel cell list, and uses the measurement result of the corresponding primary frequency point in the cross-channel cell list as the measurement result of the co-channel interfering cell for cells in the co-channel cell list that have the same cell parameter identifier as those in the cross-channel cell list; thereby reducing the probability of missing co-channel interfering cells due to inaccurate measurements caused by the lack of pilot signals at co-channel secondary frequency points. When co-channel and cross-channel measurements are configured simultaneously at the network end, the workload of the terminal measurement is reduced because the measurement of secondary frequency points in the co-channel cell list by the co-channel interference removal algorithm is reduced, and co-channel interfering cells can be selected more accurately.
Description
Technical field
The present invention relates to moving communicating field, particularly remove the co-channel interference signal, is exactly a kind of method of selecting inter-frequency interference cell in the communication system that adopts the N frequency point networking specifically.
Background technology
In mobile communication system, can produce very big interference if be in other users' that work on the identical frequency signal to active user's signal with the receiver that bigger power arrives the active user, thereby influence the demodulation performance of active user's signal.In order to reduce this co-channel interference as far as possible, receiver generally can use the algorithm of removing the co-channel interference signal to improve the demodulation performance of receiver.A prerequisite of this algorithm is exactly to obtain the concrete parameter of inter-frequency interference cell and these cell signal power are measured.Current mobile communication system generally all can or be measured in the control messages the contiguous alien frequencies and the parameter of co-frequency cell are informed terminal in broadcast, terminal is selected the bigger sub-district of power as the input of removing the co-channel interference algorithm to measuring with the pilot channel of the sub-district in the tabulation frequently.
Adopt the communication system of N frequency point networking to be meant that all or part cell base station in the mobile communication system carries out the transmitting-receiving of signal on a plurality of frequencies, one of them is the dominant frequency point, and all the other are auxilliary frequency, and broadcast message and pilot channel only send on dominant frequency point.The dominant frequency point of each sub-district with assist frequency and adopt identical cell parameter identifier (Cell Parameters ID).
After N frequency point networking technology is introduced, each sub-district during broadcast is tabulated with the co-frequency cell of measuring control messages and alien-frequency district is tabulated is equivalent to a working frequency points of a sub-district in the real network, and the relation of frequency or alien frequencies is with respect to the working frequency points of portable terminal together.System for the N frequency point networking, the main frequency point information that both may comprise some adjacent sub-district in the co-frequency cell tabulation of broadcast and measurement control messages, the auxilliary frequency point information that also may comprise some sub-district, owing on auxilliary frequency, do not send pilot frequency information, terminal can't correctly obtain the power of this sub-district when measuring, can cause the situation that the generation leakage is selected to the measurement of inter-frequency interference cell is inaccurate, make that the interfered cell input of removing the co-channel interference algorithm is inaccurate, thereby influence the receiver demodulation performance.
See figures.1.and.2, Fig. 1 is the cell configuration schematic diagram of the communication system of employing N frequency point networking; As shown in Figure 1, a portable terminal (UE) is resident or to be operated in cell parameter identifier (Cell ParameterID) be 5 No. 5 sub-districts, as shown in Figure 1, around No. 5 sub-districts, exist No. 0, and No. 7, No. 8, No. 9, No. 15, No. 127.The working frequency points of terminal No. 5 sub-districts is f3, and these contiguous sub-districts send information and can produce interference to the received signal of terminal around it.Because UE is positioned at the position near 7,9, No. 15 sub-districts, system is according to optimized Algorithm, and selected 7,9, No. 15 sub-districts are the adjacent cell that need measure; And in N frequency point networking technology, because pilot signal or broadcast message are not launched at auxilliary frequency in these contiguous sub-districts, so terminal does not receive the information in pilot signal or the broadcast message, thereby cause terminal when measuring, can't obtain the power of this sub-district, but in real work, very big interference may be caused to the terminal information reception in the information of auxilliary frequency emission in these sub-districts, usually because this cell operation does not launch pilot signal on auxilliary frequency or the broadcast message terminal can't obtain this sub-district some metrical informations at auxilliary frequency, when considering the interference of removing inter-frequency interference cell, it is leaked choosing, make that the interfered cell input of removing the co-channel interference algorithm is inaccurate, thereby influence the receiver demodulation performance.
The system that receives tabulates for the co-frequency cell tabulation and the alien-frequency district of its configuration broadcast that terminal sends from network or the measurement control order, General System can be according to its predetermined optimized Algorithm, for this terminal configuration the co-frequency cell tabulation and the alien-frequency district of one predetermined configurations tabulate.Both comprised that the dominant frequency point that the terminal works frequency is identical therewith also comprised the identical auxilliary frequency of working frequency points therewith in the co-frequency cell tabulation, the alien-frequency district tabulation includes only the dominant frequency point inequality with working frequency points.
From Fig. 2 A as can be seen, the dominant frequency point f3 of No. 5 sub-districts, it is transmitting system information on time slot 0, can transmitting downstream on the descending pilot frequency time slot of special time slot synchronization code signal.The business information of other operational terminal of emission on other time slot; Auxilliary frequency f1, on the f2, it does not send signal on time slot 0 and special time slot, only the business information of other operational terminal of emission on other time slot.
As can be seen, the dominant frequency point of No. 7 sub-districts is f1 from Fig. 2 B, and it is transmitting system information on time slot 0, can the transmitting downstream synchronization code signal on the descending pilot frequency time slot of special time slot.The business information of other operational terminal of emission on other time slot; Auxilliary frequency f2, on the f3, it does not send signal on time slot 0 and special time slot, only the business information of other operational terminal of emission on other time slot.
With respect to being positioned at No. 5 sub-districts and being operated in the terminal UE (f3 that f3 goes up a certain descending time slot (as descending time slot 5), 5), when other terminal works being arranged in No. 7 sub-districts when it assists the same descending time slot (as descending time slot 5) of frequency f3, then formed one with respect to (f3,5) inter-frequency interference cell (f3,7); When the same descending time slot that has other terminal works at its dominant frequency f1 in No. 7 sub-districts (as descending time slot 5), then formed an alien frequencies interfered cell (f1,7) with respect to (f3,5).
From Fig. 2 C as can be seen, the dominant frequency point of No. 15 sub-districts is f2, and it is transmitting system information on time slot 0, can the transmitting downstream synchronization code signal on the descending pilot frequency time slot of special time slot.The business information of other operational terminal of emission on other time slot; Auxilliary frequency f1, on the f3, it does not send signal on time slot 0 and special time slot, only the business information of other operational terminal of emission on other time slot.
With respect to being positioned at No. 5 sub-districts and being operated in the terminal UE (f3 that f3 goes up a certain descending time slot (as descending time slot 5), 5), when terminal works being arranged in No. 15 sub-districts when it assists the same descending time slot (as descending time slot 5) of frequency f3, then formed one with respect to (f3,5) inter-frequency interference cell (f3,15); When the same descending time slot that has other terminal works at its dominant frequency f2 in No. 15 sub-districts (as descending time slot 5), then formed an alien frequencies interfered cell (f2,5) with respect to (f3,5).
As can be seen, the dominant frequency point of No. 9 sub-districts is f3 from Fig. 2 D, and it is transmitting system information on time slot 0, can the transmitting downstream synchronization code signal on the descending pilot frequency time slot of special time slot.The business information of other operational terminal of emission on other time slot; Auxilliary frequency f1, on the f2, it does not send signal on time slot 0 and special time slot, only the business information of other operational terminal of emission on other time slot.
With respect to being positioned at No. 5 sub-districts and being operated in the terminal UE (f3 that f3 goes up a certain descending time slot (as descending time slot 5), 5), when the same descending time slot that has terminal works at its dominant frequency f3 in No. 9 sub-districts (as descending time slot 5), then formed one with respect to (f3,5) inter-frequency interference cell (f3,9).
This terminal resident or that be operated in No. 5 sub-districts can receive broadcast message or the measurement control order that system sends, in its broadcast message or measurement control order, there are the co-frequency cell tabulation and the alien-frequency district tabulation of system configuration, as system be: (f3 for the tabulation of the co-frequency cell of this terminal configuration, 15) (f3,9); The tabulation of alien-frequency district is: (f1,7), (f2,15).Because the frequency f3 in the co-frequency cell (f3,15) does not belong to the dominant frequency point of sub-district 15, therefore, the pilot signal power of this co-frequency cell can't be measured, because this sub-district 15 does not send signal on time slot 0 of assisting frequency f3 and special time slot.
Summary of the invention
The method that the purpose of this invention is to provide a kind of selection inter-frequency interference cell of the N of being used for frequency point networking system, to overcome in the prior art when measuring inter-frequency interference cell because this frequency is auxilliary frequency measures less than this cell signal and produce the problem of selecting with Louing, thereby import for the removal co-channel interference algorithm of receiver provides more accurately.
For realizing above-mentioned purpose of the present invention, the invention provides a kind of method of selecting inter-frequency interference cell, be that this method may further comprise the steps: A. one terminal receives a system information or measurement control order from the network terminal of N frequency point networking; B. analyze this system information or measurement control order, select suitable alien-frequency district and co-frequency cell; C. measure the alien frequencies select and the pilot power of co-frequency cell; D. the power that records is compared with predetermined conditions, the power of eligible sub-district and parameter are input to the algorithm of removing co-channel interference.
Wherein said inter-frequency interference cell comprises dominant frequency point identical with the working frequency points of this terminal and the auxilliary frequency identical with the working frequency points of this terminal.
Wherein said step B is by the terminal cell parameter identifier of sub-district in sub-district and the alien-frequency district tabulation in the co-frequency cell tabulation relatively, and think in the alien-frequency district tabulation tabulate with co-frequency cell in certain sub-district sub-district dominant frequency point of co-frequency cell for this reason that the same cells parameter identifier arranged.
Described step C is the sub-district of finding the dominant frequency point identical with its cell parameter identifier in the co-frequency cell tabulation in the alien-frequency district tabulation, with the measurement result of the measurement result on its dominant frequency point as this co-frequency cell; In the alien-frequency district tabulation, do not find the sub-district identical in the co-frequency cell tabulation, just on this sub-district, measure with its cell parameter identifier.
By above technical scheme provided by the invention as can be seen, the present invention is on the basis of existing inter-frequency interference cell system of selection, find out the dominant frequency point of the same sub-district of auxilliary frequency correspondence in the co-frequency cell tabulation by the cell parameter identifier (Cell Parameters ID) of sub-district during relatively broadcast or the co-frequency cell tabulation of measurement control messages and alien-frequency district are tabulated, and replace the measurement of this auxilliary frequency with the pilot measurement amount of dominant frequency point, reduced because the inter-frequency interference cell that the measurement that does not have pilot signal to cause with frequently auxilliary frequency is forbidden to cause leaks the probability of choosing.Dispose simultaneously in network terminal (most applications of network operation is configuration so) under the situation of common frequency measurement and different-frequency measure, because reduced because with the measurement of going algorithm of interference frequently to auxilliary frequency in the co-frequency cell tabulation, and reduced the workload that terminal is measured, can more accurately select inter-frequency interference cell simultaneously.
Description of drawings
Fig. 1 is for adopting the cell configuration schematic diagram of N frequency point networking system;
Fig. 2 A-Fig. 2 D is the transmission frame schematic diagram that each adjacent cell in the network system shown in Figure 1 is launched; Fig. 2 A is the transmission frame schematic diagram of No. 5 sub-districts at terminal UE place; Fig. 2 B is the transmission frame schematic diagram of No. 7 sub-districts; Fig. 2 C is the transmission frame schematic diagram of No. 15 sub-districts; Fig. 2 D is the transmission frame schematic diagram of No. 9 sub-districts;
Fig. 3 selects the flow chart of inter-frequency interference cell method for the present invention;
Fig. 4 is the substep flow chart of step B among Fig. 3;
Fig. 5 is the flow chart of the object lesson of step B among Fig. 3;
Fig. 6 is the concrete implementation step flow chart of step 109 among Fig. 5.
Embodiment
The present invention is described further below in conjunction with the drawings and specific embodiments.Particularly, select the example that is embodied as of the inter-frequency interference cell measured to describe with the terminal in the mobile communication system of introducing the N frequency point networking.
From Fig. 1, this terminal UE resident or that be operated in No. 5 sub-districts shown in Figure 2 can receive broadcast message or the measurement control order that system sends, in its broadcast message or measurement control order, there are the co-frequency cell tabulation and the alien-frequency district tabulation of system configuration, as system be: (f3 for the tabulation of the co-frequency cell of this terminal configuration, 15) (f3,9); The tabulation of alien-frequency district is: (f1,7), (f2,15).Because the frequency f3 in the co-frequency cell (f3,15) does not belong to the dominant frequency point of sub-district 15, therefore, the power of this co-frequency cell is to measure its pilot signal, because it does not send signal on time slot 0 of assisting frequency f3 and special time slot.So must find a kind of solution, prevent from not leaked choosing and make its co-channel interference that produces owing to there is metrical information because pilot frequency information is not launched in the sub-district on auxilliary frequency.
Core concept of the present invention is: when selecting inter-frequency interference cell to measure, cell parameter identifier (Cell Parameters ID) by sub-district during relatively broadcast or the co-frequency cell tabulation of measurement control messages and alien-frequency district are tabulated, the dominant frequency point of the auxilliary frequency affiliated subdistrict in the co-frequency cell tabulation is found out in the alien-frequency district tabulation, measurement with auxilliary frequency in the measurement replacement co-frequency cell tabulation of dominant frequency point reduces inter-frequency interference cell and leaks situation about selecting.
According to above-mentioned thought of the present invention, referring to Fig. 3, be used for the method that the N frequency point networking is selected inter-frequency interference cell, it mainly comprises the following steps:
A. terminal receives the broadcast of this sub-district or measures control messages, and all sub-districts and the cell parameter in the co-frequency cell tabulation in all sub-districts and cell parameter and the common frequency measurement in the alien-frequency district tabulation in the record different-frequency measure;
B. analyze the cell parameter of co-frequency cell tabulation and alien-frequency district tabulation, select suitable alien-frequency district and co-frequency cell;
C. measure the alien frequencies select and the pilot power of co-frequency cell;
D. the power that records is compared with predetermined conditions, the power of eligible sub-district and parameter are input to the algorithm of removing co-channel interference.
In conjunction with Fig. 3 the method flow diagram that the N of being used for frequency point networking of the present invention is selected inter-frequency interference cell has been described above.
Fig. 4 has then shown the substep flow chart of step B among Fig. 3.Particularly, step B comprises following each substep:
B1. the cell parameter identifier (Cell Parameters ID) of each sub-district in the co-frequency cell tabulation is compared with the cell parameter identifier (Cell Parameters ID) of each sub-district in the alien-frequency district tabulation, if certain sub-district (Cell1) is identical with the cell parameter identifier (Cell Parameters ID) of certain sub-district (Cell2) of alien-frequency district tabulation in the co-frequency cell tabulation, just think that these two sub-districts are actually the dominant frequency point of certain sub-district and assist frequency, because in the TD-SCDMA system, the measuring object of different-frequency measure all is a pilot channel, so the sub-district in the alien-frequency district tabulation is the dominant frequency point of actual each sub-district.So sub-district (Cell2) is the dominant frequency point, sub-district (Cell1) is auxilliary frequency.With all have the sub-district of same cells parameter identifier (Cell Parameters ID) to note with the alien-frequency district tabulation in the co-frequency cell tabulation, and write down corresponding with it alien-frequency district with same cells parameter identifier (Cell Parameters ID).Be designated as cell set A.
B2. will there be the cell set of identical cell parameter identifier (Cell Parameters ID) to note in the co-frequency cell tabulation with the alien-frequency district tabulation.Be designated as cell set B.
B3, terminal select to remove the required sub-district of measuring of co-channel interference algorithm.
According to the method that is used for the selection inter-frequency interference cell of N frequency point networking system of the present invention, step C wherein can specifically describe and be: if the sub-district in the co-frequency cell tabulation belongs to cell set A, then measure the power of the alien-frequency district pilot channel identical with its cell parameter identifier (Cell Parameters ID), and the record measurement result; If the sub-district in the co-frequency cell tabulation belongs to cell set B, then measure the power of this district pilots channel.With of the input of above-mentioned two groups of measurement results while as step D.
Describe the flow chart of the object lesson of step B among Fig. 3 in detail below in conjunction with Fig. 5.
Shown in step 101, if terminal works on the dominant frequency point of sub-district, terminal can be from the broadcast of this sub-district or network terminal send to the co-frequency cell tabulation and the alien-frequency district that obtain adjacent sub-district in the measurement control messages of terminal and tabulate; If terminal works is on auxilliary frequency, terminal can obtain the co-frequency cell tabulation and the alien-frequency district of adjacent sub-district and tabulate from network terminal sends to the measurement control messages of terminal.Each sub-district in the co-frequency cell tabulation all comprises one group of parameter, described parameter comprises cell parameter identifier parameters such as (CellParameters ID), each sub-district in the alien-frequency district tabulation also comprises one group of parameter, described parameter comprises cell parameter identifier (Cell Parameters ID), parameters such as frequency point information.Supposing has M sub-district (for example (f1,7), (f2,15)) with in the tabulation N sub-district (for example (f3,15), (f3,9)) being arranged frequently in the alien frequencies tabulation, and N＞0, and M＞0 enters step 102.
Step 102: for inquiry is provided with two variable n, m, it initially is made as n=1, m=1; Change n, the value of m can travel through co-frequency cell tabulation and alien-frequency district tabulation; The Cell of initialization simultaneously Group1, it is set to sky, enters step 103.
Step 103: the sub-district of n position in co-frequency cell that judgement the is stored tabulation, whether the cell parameter identifier (CellParameters ID) of m position Cell m in the alien-frequency district tabulation that is Cell n and is stored is identical, if identically carry out step 104, if difference carry out step 105.
Step 104: the sub-district is deposited into cell set (Cell Group1) to (Cell n and Cell m), and (this cell set is equivalent to the cell set A described in the step B2, the sub-district is to (f3 in described special case, 15)-(f2,15) being put into cell set (Cell Group1) is among the cell set A), and change step 105 over to.
Step 105: m is added 1, enter step 106.
Step 106: whether judge m greater than M, if greater than M, promptly Cell n compares with the sub-district of all alien-frequency district tabulations, and enter step 107 this moment, otherwise enter step 103.
Step 107: n is added 1, and m is made as 1, reenters step 108.
Step 108: judge n＞N, whether current location has been positioned at the end of co-frequency cell tabulation.If not, then enter step 103; If then enter step 109;
Step 109: this terminal (UE) selects to remove the required sub-district of measuring of co-channel interference algorithm.The sub-district of the sub-district of being stored among the Cell Group1 this moment to disturbing for the auxilliary frequency that needs in the co-channel interference algorithm to measure.
Below in conjunction with Fig. 6 the flow chart of the instantiation of the step 109 among Fig. 5 is described in detail.
Shown in step 201, the location variable in the co-frequency cell tabulation of being stored is made as n, and it initially is made as 1, simultaneously cell set (Cell Group2) is initialized as sky, enter step 202 afterwards;
Step 202: whether the sub-district of judging the Cell n in the co-frequency cell tabulation belongs in the cell set (CellGroup1), corresponding district that to be this sub-district exist in the alien-frequency district tabulation number, if belong to cell set (Cell Group1), then change step 203 over to, otherwise change step 204 over to.
Step 203: the alien-frequency district of the Cell n correspondence in the cell set (Cell Group1) is deposited into cell set (Cell Group2), enters step 205 then.
Step 204: after Cell n is deposited into cell set (Cell Group2), enter step 205.
Step 205: n adds 1 with variable, enters step 206;
Step 206: whether judge n greater than N, promptly judge whether to have looked for all to remove the sub-district of the required measurement of co-channel interference algorithm.If n greater than N, is transferred to step 207, otherwise change step 202 over to.
Step 207: with the sub-district of sub-districts all in the cell set (CellGroup2) as the required measurement of removal co-channel interference algorithm.In described special case, comprise (f2,15), (f3,9) in this cell set (CellGroup2) the most at last.
After above-mentioned steps, finally drawn the cell set (CellGroup2) of the sub-district that comprises that all need be measured.Next, all sub-districts in the above-mentioned cell set (CellGroup2) are measured step C promptly recited above.And the power that records compared with predetermined conditions, the power and the parameter of eligible sub-district is input to the algorithm of removing co-channel interference, step D promptly recited above.
By above technical scheme provided by the invention as can be seen, the present invention is on the basis of existing inter-frequency interference cell system of selection, find out the dominant frequency point of assisting the same sub-district of frequency correspondence in the co-frequency cell tabulation by the cell parameter identifier (Cell Parameters ID) that co-frequency cell is tabulated and alien-frequency district is tabulated that compares broadcast or measure in the control messages, and replace the measurement of this auxilliary frequency with the pilot measurement of dominant frequency point, reduced because the inter-frequency interference cell that the measurement that does not have pilot signal to cause with frequently auxilliary frequency is forbidden to cause leaks the probability of choosing.Dispose simultaneously in network terminal (most applications of network operation is configuration so) under the situation of different-frequency measure,, and reduced the workload that terminal is measured because reduced because with the measurement of going algorithm of interference frequently to auxilliary frequency in the co-frequency cell tabulation.
More than specifically described the present invention by embodiment, but those of ordinary skills know, the present invention has many distortion and variation and does not break away from spirit of the present invention, wishes that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100022876A CN101217801B (en) | 2008-01-08 | 2008-01-08 | A same frequency interference selection method applied in N frequency point networking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100022876A CN101217801B (en) | 2008-01-08 | 2008-01-08 | A same frequency interference selection method applied in N frequency point networking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101217801A CN101217801A (en) | 2008-07-09 |
| CN101217801B true CN101217801B (en) | 2011-12-21 |
Family
ID=39624144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100022876A Expired - Fee Related CN101217801B (en) | 2008-01-08 | 2008-01-08 | A same frequency interference selection method applied in N frequency point networking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101217801B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635935B (en) * | 2008-07-25 | 2012-04-18 | 中兴通讯股份有限公司 | Neighboring cell information transmission method |
| CN101516100B (en) * | 2009-03-18 | 2011-04-20 | 华为技术有限公司 | Measuring collocation method, device and system |
| CN101959229B (en) * | 2009-07-20 | 2014-04-09 | 电信科学技术研究院 | Method and equipment for processing same frequency list and different frequency list |
| WO2011011918A1 (en) * | 2009-07-30 | 2011-02-03 | 中兴通讯股份有限公司 | Method for transmitting neighbor cell information |
| CN102056127B (en) * | 2009-11-03 | 2013-06-26 | 杰脉通信技术(上海)有限公司 | A method for selecting a co-frequency interfering cell list at the TDD UE side |
| WO2011162663A1 (en) * | 2010-06-23 | 2011-12-29 | Telefonaktiebolaget L M Ericsson (Publ) | Reference signal interference management in heterogeneous network deployments |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932946A2 (en) * | 1996-10-10 | 1999-08-04 | Ericsson, Inc. | Method for improving co-channel interference in a cellular system |
| CN1787682A (en) * | 2004-12-07 | 2006-06-14 | 华为技术有限公司 | Method for controlling up-link load of base station |
| CN1852554A (en) * | 2005-05-31 | 2006-10-25 | 华为技术有限公司 | Alien-frequency hard switching-over method in wide-band CDMA system |
| CN1917378A (en) * | 2005-08-18 | 2007-02-21 | 财团法人资讯工业策进会 | Method for suppressing same-frequency interference in wireless communication system |
-
2008
- 2008-01-08 CN CN2008100022876A patent/CN101217801B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932946A2 (en) * | 1996-10-10 | 1999-08-04 | Ericsson, Inc. | Method for improving co-channel interference in a cellular system |
| CN1787682A (en) * | 2004-12-07 | 2006-06-14 | 华为技术有限公司 | Method for controlling up-link load of base station |
| CN1852554A (en) * | 2005-05-31 | 2006-10-25 | 华为技术有限公司 | Alien-frequency hard switching-over method in wide-band CDMA system |
| CN1917378A (en) * | 2005-08-18 | 2007-02-21 | 财团法人资讯工业策进会 | Method for suppressing same-frequency interference in wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101217801A (en) | 2008-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2344570C1 (en) | Grouping of pilot-signals and control of sets in communication systems with multiple carriers | |
| CN101217801B (en) | A same frequency interference selection method applied in N frequency point networking system | |
| EP2717605A2 (en) | Self configuring and optimisation of cell neighbours in wireless telecommunications networks | |
| CN104780544A (en) | Communication method and device by using unauthorized spectrum | |
| CN102802174B (en) | Drive test data acquiring method, drive test data acquiring system and drive test data acquiring device | |
| JP2014516230A (en) | Cell reselection method and apparatus | |
| CN102761897B (en) | Method and system for realizing automatic neighbor cell relation measurement | |
| CN101365224B (en) | Method and apparatus reducing interference between adjacent cells | |
| WO2012137073A2 (en) | Method and apparatus for performing cell reselection | |
| CN101841868A (en) | Method, system and terminal for acquiring neighboring cell list | |
| CN102077640B (en) | Method for configuring mobile terminal to measure cell, radio resource control device and terminal | |
| CN101128000A (en) | A method and device for realizing different frequency measurement | |
| JPWO2008056411A1 (en) | Base station apparatus, user apparatus and method used in mobile communication system for performing inter-band handover | |
| CN101127998B (en) | Method and terminal for adjacent cell measurement of terminal in long evolving system | |
| CN100596221C (en) | Measurement report method in mobile communication system | |
| CN103458418A (en) | Super housing estates and interference coordination method for super housing estates networked in common-frequency and chained manner | |
| EP2456101B1 (en) | Method and device for anti-interference in single frequency network of mobile communication system | |
| CN103179586B (en) | A kind of analysis method of super cell and device | |
| CN101193399A (en) | Method and terminal for maintaining neighbor cell information in long term evolution system | |
| CN101252761B (en) | Process method for user terminal to measure control message | |
| CN104521286A (en) | Data transmission method, apparatus and system | |
| CN103298002B (en) | Virtual cell measuring method, user device, base station and communication system | |
| CN102594469B (en) | Rapid test method for anti-interference performance of mobile communication system | |
| CN109412766B (en) | Method for determining pilot frequency in multiplexing scene, base station and terminal | |
| CN102857896B (en) | A kind of terminal is searched for automatically and the method and terminal of addition adjacent area |
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 |
Granted publication date: 20111221 Termination date: 20210108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |