CN102547734B - Interference avoiding method of LTE (long term evolution) system and base station of LTE system - Google Patents
Interference avoiding method of LTE (long term evolution) system and base station of LTE system Download PDFInfo
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Abstract
The invention discloses an interference avoiding method of an LTE (long term evolution) system and a base station of the LTE system, wherein the method comprises the following steps: the base station of the LTE system learns about that the frequency band of the LTE system and the frequency band of other mobile communication system have overlapped frequency band therebetween; the base station allocates the frequency band except the overlapped frequency band to the transmitted signaling and/or data. The method provided by the invention improves utilization efficiency of the frequency spectrum and avoids frequency spectrum waste.
Description
Technical field
The present invention relates to the communications field, in particular to interference avoidance method and the base station of a kind of Long Term Evolution (Long Term Evolution, referred to as LTE) system.
Background technology
Along with the development of mobile communication technology, new communication standard also produces thereupon.For the needs of the different demand and the market operation that meet user, there is the form of various kinds of mobile communication coexistence of systems.Frequency is the important resource of current mobile communications system, and in order to better utilize frequency, new mobile communication standard can utilize multiple scattered frequency band.Therefore, current radio resource management inevitably occurs that mobile network's frequency domain part of the same area different systems is overlapping, and this proposes new challenge and demand to the antijamming capability of mobile communication system.Existing Inter-Cell Interference Coordination (Inter Cell Interference Coordination, referred to as ICIC) can only carry out interference coordination during identical networking in LTE system preferably.In some scenarios, LTE and different system are with to cover and under band portion overlapping cases, LTE system and interfering with each other of other mobile communication system are problem demanding prompt solutions.
For Frequency Division Duplexing (FDD) (Frequency Division Duplex, referred to as FDD) LTE, from the mutual interference impact of uplink and downlink physical channel being divided into upstream band and downstream bands, Fig. 1 and Fig. 3 belongs to up mutual interference, Fig. 2 and Fig. 4 belongs to descending mutual interference.Can be divided into marginal mode overlap and plug-in type overlap according to the Position disturbance that mutual interference band occurs, Fig. 1 and Fig. 2 belongs to marginal mode overlap, Fig. 3 and Fig. 4 belongs to plug-in type overlap.
Up marginal mode is overlapping: different system from low frequency end or front end overlapping with LTE system upstream band.General different system bandwidth is 1 ~ 5MHz, with LTE ascending physical signal ascending control channel (Physical Uplink Control Channel, PUCCH) frequency domain is overlapping, to PUCCH serious interference, certainly will affect and measure and receive response/do not receive reporting of the information such as response (Acknowledge/Non-acknowledge, referred to as ACK/NACK).
Descending marginal mode is overlapping: different system from low frequency end or front end overlapping with LTE system downstream bands.General different system bandwidth is 1 ~ 5MHz, according to the structure of descending each physical channel, overlapped frequency bands is to Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) and Physical Downlink Shared Channel (Physical Downlink Shared Channel, referred to as PDSCH) serious interference, this certainly will affect the reliability of control information and transfer of data, cause a large amount of hybrid automatic repeat-request (Hybrid Automatic Repetition Request, referred to as HARQ), even call drop, handoff failure etc.
Up plug-in type is overlapping: different system bandwidth appears at the centre of upstream band, and different band system band can be used as overlapped frequency bands.The data that PUSCH transmits in overlapped frequency bands are subject to serious interference, cause a large amount of HARQ.
Descending plug-in type is overlapping: different system bandwidth appears at the centre of downstream bands, and different band system band can be used as overlapped frequency bands.The control information that PDCCH and PDSCH transmits respectively in overlapped frequency bands and data are subject to serious interference too.
LTE is relevant with the position of overlapped frequency bands with the width of overlapped frequency bands to the degree that different system interferes with each other, and may cause the paralysis of network time serious.Therefore, need in the LTE system of correlation technique, introduce a kind of interference avoidance mechanism.
Summary of the invention
Main purpose of the present invention is the interference avoidance scheme providing a kind of LTE system, at least to solve the problem.
According to an aspect of the present invention, provide a kind of interference avoidance method of LTE system, comprising: the base station of LTE system knows that the frequency range of LTE system and other mobile communication system exist overlapped frequency bands; Base station be its transmission signaling and/or data allocations overlapped frequency bands outside frequency band.
According to a further aspect in the invention, provide a kind of base station, this base station is arranged in LTE system, comprising: distribution module, for when the frequency range of LTE system and other mobile communication system exist overlapped frequency bands, it is the frequency band outside the signaling of base-station transmission and/or data allocations overlapped frequency bands.
Pass through the present invention, adopt the mode of the frequency band distributed beyond overlapped frequency bands, can by dodging out with frequency band in the middle of scattered idle frequence resource, be integrated into the large broadband that LTE system is supported, thus improve spectrum utilization efficiency, avoid frequency spectrum waste, meanwhile, also avoid the impact on existing network.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the overlapping schematic diagram of the ascending edge formula of correlation technique;
Fig. 2 is according to the overlapping schematic diagram of the descending marginal mode of correlation technique;
Fig. 3 is according to the overlapping schematic diagram of the up plug-in type of correlation technique;
Fig. 4 is according to the overlapping schematic diagram of the descending plug-in type of correlation technique;
Fig. 5 is the flow chart of the interference avoidance method of LTE system according to the embodiment of the present invention;
Fig. 6 is the schematic diagram of the enforcement scene according to the embodiment of the present invention;
Fig. 7 is the flow chart of the interference avoidance method of LTE system according to the embodiment of the present invention three;
Fig. 8 is the flow chart of the descending interference avoidance method according to the embodiment of the present invention three;
Fig. 9 is the structured flowchart of the base station according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment one
Embodiments provide a kind of interference avoidance method of LTE system.Fig. 5 is the flow chart of the interference avoidance method of LTE system according to the embodiment of the present invention, and as shown in Figure 5, the method comprises:
Step S502, the base station of LTE system knows that the frequency range of LTE system and other mobile communication system exist overlapped frequency bands;
Step S504, base station be its transmission signaling and/or data allocations overlapped frequency bands outside frequency band.
In the present embodiment, base station is the frequency band outside signaling of its transmission and/or data allocations overlapped frequency bands, thus avoids interfering with each other of LTE system and other system.Wherein, the position of now overlapped frequency bands can be known in the base station of LTE system in the overlapped frequency bands that background server configures by operational system.
In a preferred embodiment of the embodiment of the present invention, step S502 can comprise: determine that LTE system and other mobile communication system exist overlapped frequency bands at up direction or down direction, and determines that overlapped frequency bands is that marginal mode is overlapping; Step S504 can comprise: the next agreement frequency band of frequency band to overlapped frequency bands of up direction or down direction in LTE system is shunk in base station, and is signaling and/or the next agreement frequency band of data allocations of base-station transmission.
In another preferred embodiment of the embodiment of the present invention, step S502 can comprise: determine that the frequency range of LTE system exists overlapped frequency bands with other mobile communication system and comprises: and determine that overlapped frequency bands is that plug-in type is overlapping; Step S504 can comprise: base station is that the frequency band outside signaling of its transmission and/or data allocations overlapped frequency bands comprises: base station Control and Schedule device is the Physical Resource Block beyond signaling and/or data allocations overlapped frequency bands.
Preferably, base station Control and Schedule device is that the Physical Resource Block beyond signaling and/or data allocations overlapped frequency bands comprises: when the data of the Dedicated Control Channel of dispatched users or Dedicated Traffic Channel, and base station determines that control channel unit that scheduler can distribute is not within overlapped frequency bands; Base station Control and Schedule device is control channel unit beyond signaling and/or data allocations overlapped frequency bands and Physical Resource Block.Wherein, control channel unit comprise following one of at least: the scheduling control information of up direction, the scheduling control information of down direction.As can be seen here, no matter be the plug-in type overlap of up direction or the plug-in type overlap of down direction, the mode of the present embodiment can be adopted to carry out interference avoidance.
In another preferred embodiment of the embodiment of the present invention, step S502 can comprise: base station determines that LTE system and other mobile communication system exist overlapped frequency bands at down direction, and determines that overlapped frequency bands is that plug-in type is overlapping; Step S504 can comprise: it is control channel unit beyond signaling and/or data allocations overlapped frequency bands and Physical Resource Block that base station controls downlink scheduler.
Wherein, in descending plug-in type overlap, it is that control channel unit beyond signaling and/or data allocations overlapped frequency bands and Physical Resource Block can realize one of in the following manner that base station controls downlink scheduler:
Mode one
Base station determines that the public search space of the physical downlink control channel PDCCH under current LTE system bandwidth is outside overlapped frequency bands; When present sub-frame has common control channel order to need to dispatch, base station controls downlink scheduler in public search space, distributes control channel unit; Base station controls the Physical Resource Block beyond downlink scheduler distribution overlapped frequency bands.
Mode two
Base station determines that the public search space of the PDCCH under current LTE system bandwidth is within overlapped frequency bands; When present sub-frame has common control channel to make to need scheduling, base station control downlink scheduler public search space according to aggregation levels be 8 and lowest bit rate distribute control channel unit; Base station controls the Physical Resource Block beyond downlink scheduler distribution overlapped frequency bands.
Embodiment two
Present embodiments provide a kind of in LTE system based on different system with cover and frequency domain has overlapping time networking network disturb solution mutually, and from up, descending, the different angle in the position of overlapped frequency bands provides the flow process of interference avoidance respectively.Reduce the mutual interference of LTE system and different system, remove the networking cost because disturbing the Web Tra nsition caused to bring mutually from, namely, by controlling up-downgoing scheduling, based on overlapped frequency bands width and the position of backstage configuration, in real time up-downgoing scheduler is retrained, avoid the upper transmission of the Physical Resource Block (Physical Resource Block, referred to as PRB) of information in overlapped frequency bands position.The present embodiment is used for a kind of interference avoidance method coexisted between LTE and LTE-ADVANCED system and other existing wireless communication systems.Do not affect the structure of different grid to better improve efficiency of frequency employment, the present embodiment avoids LTE system to carry effective information in overlapped frequency bands as far as possible simultaneously as far as possible.The present embodiment realizes LTE mainly through following a few part and different system has interference avoidance during overlapped frequency bands machine-processed.
Ascending edge formula is overlapping
Carry out suitable upstream band to shrink, make that LTE is up is operated in new frequency and next protocol bandwidth, directly avoid frequency band conflict.
Up plug-in type is overlapping
Do not need to carry out frequency band contraction, directly control uplink scheduling device and distribute PRB beyond overlapped frequency bands, the frequency resource avoiding frequency band to shrink may causing is lost.
Descending marginal mode is overlapping
Method is overlapping consistent with ascending edge formula.
Descending plug-in type is overlapping
Do not need to carry out frequency band contraction, directly control downlink scheduler and distribute control channel unit (Control Channel Element, CCE) beyond overlapping frequency and PRB, avoid frequency band and shrinks the frequency resource that may cause and lose.Distribute the Randomness of position of CCE according to PDCCH in agreement in subscriber equipment (User Equipment, referred to as UE) search volume, if CCE appears at overlapped frequency bands, then do not dispatch.
Because the width of overlapped frequency bands is different with position, the method for the present embodiment to dodge effect also different.Overlapping and the descending marginal mode overlap for ascending edge formula, dodges rear LTE and different system staggers completely on frequency domain, thoroughly eliminates the mutual interference on frequency domain.Overlapping and the descending plug-in type overlap for up plug-in type, Be very effective, can reduce the mutual interference in overlapped frequency bands.By the present embodiment, can dodge open in the middle of scattered idle frequence resource with frequency band, be integrated into the large broadband that LTE system is supported, improve spectrum utilization efficiency, avoid frequency spectrum waste, avoid the impact on existing network simultaneously.
Embodiment three
The present embodiment is based on the scene shown in Fig. 6.At Node B (the Evolved Node B of LTE macro base station evolution, eNB) in coverage, the network node of certain mobile communication system is near eNB in addition, overlay area major part is identical, and two band system band have overlap, at this moment, between two kinds of access net system nodes, LTE UE must be subject to serious interference, will trigger flow process as shown in Figure 7 and Figure 8.Referring to Fig. 7 and Fig. 8, the flow process shown in the present embodiment is described in detail.
Step 701, PRB numbering corresponding under overlapped frequency bands being converted into current LTE cell system bandwidth;
Step 702, judges whether overlapped frequency bands appears at LTE upstream band, if so, then carry out step 703, if not, then carry out step 708;
Step 703, judges whether the type of overlapped frequency bands is that plug-in type is overlapping, if so, then carry out step 704, otherwise, carry out step 706;
Whether no longer step 704, judge Physical Random Access Channel (Physical Random Access Channel, referred to as PRACH) within overlapped frequency bands, if so, then carry out step 705, otherwise, carry out step 707;
Step 705, judges the current CCE resource at control channel of this user whether in overlapped frequency bands, if the current CCE resource at control channel of this user is not in overlapped frequency bands, then carry out step 712, otherwise, carry out step 711;
Step 706, upstream band is punctured into next agreement frequency band by LTE system, simultaneously center frequency point also corresponding movement, and flow process terminates;
Step 707, the frequency domain position of amendment PRACH, to non-overlapped frequency range, then carry out step 705;
Does step 708, determine whether that plug-in type is overlapping? if so, then carry out step 709, otherwise, carry out step 710;
Step 709, adopt the processing method of descending plug-in type overlap, idiographic flow is shown in Fig. 8;
Step 710, downstream bands is punctured into next agreement frequency band by LTE system, simultaneously center frequency point also corresponding movement, and flow process terminates;
Step 711, present sub-frame does not dispatch this user, and flow process terminates;
Step 712, uplink scheduling device distributes this resource, and the PRB beyond overlapped frequency bands, and flow process terminates.
Fig. 8 specifically illustrates the processing method of descending plug-in type overlap, and as shown in Figure 8, the method comprises:
Step 801, judges whether that the common control channel such as schedule broadcast and paging makes, if so, then carry out step 802, otherwise, carry out step 806;
Step 802, when to judge under the bandwidth of current area that PDCCH accounts for time domain symbolic number be β, step 803, whether not in overlapped frequency bands, if so, then carry out in PRB position corresponding to the CCE for public search space, otherwise, carry out step 805;
Step 803, CCE is distributed at public search space in base station;
Step 804, the PRB beyond base station assigns overlapped frequency bands;
Step 805 is 8 distribution CCE according to aggregation levels, adopts minimum code rate, then, carry out step 804;
Step 806, judges the assignable CCE position of UE present sub-frame whether outside overlapped frequency bands, if so, then carry out step 807, otherwise, carry out step 808;
Step 807, distributes the CCE beyond overlapped frequency bands, then, carry out step 804;
Step 808, present sub-frame does not dispatch this UE, and flow process terminates.
It should be noted that, the main body of aforesaid operations can be base station, when scheduling resource (CCE and PRB), can control uplink scheduling device or downlink scheduler is dispatched by base station.
The following describes the method for different overlapped frequency bands type being carried out to interference avoidance.
1) position of overlapped frequency bands is determined.
First determine that overlapped frequency bands appears at the upstream or downstream of LTE system, and determine that overlapped frequency bands is that marginal mode is overlapping or plug-in type is overlapping.
If marginal mode is overlapping, for up overlap, then LTE frequency band is retracted to next agreement frequency band, center frequency point also moves thereupon, is also like this for descending overlap.Process terminates.
If plug-in type is overlapping, then under the bandwidth sum frequency of current LTE cell, determine that up or descending insertion is overlapping, simultaneously by the PRB frequency domain index of area maps overlapping with different band system band for LTE to LTE system, and relevant scheduler informed in the PRB frequency domain index after mapping.If up overlap, then enter step 2), otherwise enter step 3).
2) up plug-in type is overlapping.
Check current LTE system each cellular PRACH configuration frequency domain position whether outside overlapped frequency bands, if in overlapped frequency bands, need to readjust PRACH to outside overlapped frequency bands, then, carry out following treatment step:
Dispatch certain user's Dedicated Control Channel (Dedicated Control Channel, referred to as DCCH) or Dedicated Traffic Channel (Dedicated Transaction Channel, referred to as DTCH) data time, the CCE (comprising up scheduling control information and descending scheduling control information) that scheduler can distribute for this UE is if within overlapped frequency bands, then present sub-frame does not dispatch this user, and process terminates.Otherwise continue to distribute CCE and PRB beyond overlapped frequency bands, process terminates.
3) descending plug-in type is overlapping
If the public search space of PDCCH is beyond overlapped frequency bands under current LTE system bandwidth, in frequency range A as shown in Figure 4, so when present sub-frame has the order of the common control channel such as broadcast, paging to need to dispatch, downlink scheduler distributes CCE in public search space, then distributes the PRB beyond overlapped frequency bands.
If within current LTE system bandwidth, the public search space part of PDCCH is included in overlapped frequency bands, so when present sub-frame has the order of the common control channel such as broadcast, paging to need to dispatch, downlink scheduler is 8 according to aggregation levels in public search space, adopt lowest bit rate to distribute CCE, then distribute the PRB beyond overlapped frequency bands.
When dispatching the data of certain user DCCH or DTCH, if the CCE (comprising up scheduling control information and descending scheduling control information) that scheduler can distribute for this UE is within overlapped frequency bands, then present sub-frame is not dispatched this user's process and is terminated.Otherwise continue to distribute CCE and PRB beyond overlapped frequency bands, process terminates.
Embodiment four
Embodiments provide a kind of base station, this base station is used for realizing said method, and wherein, this base station is arranged in LTE system.
Fig. 9 is the structured flowchart of the base station according to the embodiment of the present invention, as shown in Figure 9, this base station comprises: distribution module 92, for when the frequency range of LTE system and other mobile communication system exist overlapped frequency bands, is the frequency band outside the signaling of base-station transmission and/or data allocations overlapped frequency bands.Wherein, base station is after there is overlapped frequency bands in the frequency range and other mobile communication system of knowing LTE system, and the position according to overlapped frequency bands generates corresponding PRB index.
In a preferred implementation of the embodiment of the present invention, for there is overlapped frequency bands in LTE system and other mobile communication system at up direction or down direction in distribution module 92, and when overlapped frequency bands is marginal mode overlap, shrink the next agreement frequency band of frequency band to overlapped frequency bands of up direction or down direction in LTE system, and be signaling and/or the next agreement frequency band of data allocations of base-station transmission.
In another preferred implementation of the embodiment of the present invention, for there is overlapped frequency bands in LTE system and other mobile communication system in distribution module 92, and overlapped frequency bands is when to be plug-in type overlapping, controlling uplink scheduling device is Physical Resource Block beyond signaling and/or data allocations overlapped frequency bands.
Wherein, distribution module 92, for when the data of the Dedicated Control Channel of dispatched users or Dedicated Traffic Channel, determines that control channel unit that scheduler can distribute is not within described overlapped frequency bands; And Control and Schedule device is control channel unit beyond signaling and/or data allocations overlapped frequency bands and Physical Resource Block.
Preferably, control channel unit comprise following one of at least: the scheduling control information of up direction, the scheduling control information of down direction.
For there is overlapped frequency bands in LTE system and other mobile communication system at down direction in distribution module 92 in another preferred implementation of the embodiment of the present invention, and determine overlapped frequency bands be plug-in type overlapping time, controlling downlink scheduler is control channel unit beyond signaling and/or data allocations overlapped frequency bands and Physical Resource Block.
Wherein, distribution module 92 can comprise: first determines submodule, for determining that the public search space of the physical downlink control channel PDCCH under current LTE system bandwidth is outside overlapped frequency bands; First controls submodule, when needing to dispatch for there being common control channel order at present sub-frame, controls downlink scheduler in public search space, distributes control channel unit; First distribution sub module, for controlling the Physical Resource Block beyond downlink scheduler distribution overlapped frequency bands.
Preferably, distribution module 92 can comprise: second determines submodule, for determining that the public search space of the PDCCH under current LTE system bandwidth is within overlapped frequency bands; Second controls submodule, makes when needing scheduling for there being common control channel at present sub-frame, control downlink scheduler public search space according to aggregation levels be 8 and lowest bit rate distribute control channel unit; Second distribution sub module, for controlling the Physical Resource Block beyond downlink scheduler distribution overlapped frequency bands.
In sum, the embodiment of the present invention adopts the mode of the frequency band distributed beyond overlapped frequency bands, reaches the effect of the interference reducing LTE system and other system.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an interference avoidance method for Long Term Evolution LTE system, is characterized in that, comprising:
The base station of LTE system knows that the frequency range of described LTE system and other mobile communication system exist overlapped frequency bands;
Described base station is the frequency band outside overlapped frequency bands described in its signaling transmitted and/or data allocations;
Wherein, the base station of LTE system determines that the frequency range of described LTE system and other mobile communication system exist overlapped frequency bands and comprise: described base station determines that described LTE system and other mobile communication system exist described overlapped frequency bands at up direction or down direction, and determines that described overlapped frequency bands is that marginal mode is overlapping; Described base station comprises for the frequency band outside overlapped frequency bands described in its signaling transmitted and/or data allocations: the next agreement frequency band of frequency band to described overlapped frequency bands of up direction or down direction in described LTE system is shunk in described base station, and is next agreement frequency band described in the described signaling of described base-station transmission and/or described data allocations; Or after the frequency range of described LTE system is determined in the base station of LTE system and other mobile communication system exist overlapped frequency bands, described base station determines that described overlapped frequency bands is that plug-in type is overlapping; Described base station comprises for the frequency band outside overlapped frequency bands described in its signaling transmitted and/or data allocations: described base station Control and Schedule device is the Physical Resource Block beyond overlapped frequency bands described in described signaling and/or described data allocations; Or, the base station of LTE system determines that the frequency range of described LTE system and other mobile communication system exist overlapped frequency bands and comprise: described base station determines that described LTE system and other mobile communication system exist overlapped frequency bands at down direction, and determines that described overlapped frequency bands is that plug-in type is overlapping; Described base station comprises for the frequency band outside overlapped frequency bands described in its signaling transmitted and/or data allocations: it is the control channel unit beyond overlapped frequency bands described in described signaling and/or described data allocations and Physical Resource Block that described base station controls downlink scheduler.
2. method according to claim 1, is characterized in that, described base station Control and Schedule device comprises for the Physical Resource Block beyond overlapped frequency bands described in described signaling and/or described data allocations:
When the data of the Dedicated Control Channel of dispatched users or Dedicated Traffic Channel, described base station determines that control channel unit that scheduler can distribute is not within described overlapped frequency bands;
Described base station controls this scheduler for the control channel unit beyond overlapped frequency bands described in described signaling and/or described data allocations and Physical Resource Block.
3. method according to claim 2, is characterized in that, described control channel unit comprise following one of at least:
The scheduling control information of up direction, the scheduling control information of down direction.
4. method according to claim 1, is characterized in that, described base station controls downlink scheduler for the control channel unit beyond overlapped frequency bands described in described signaling and/or described data allocations and Physical Resource Block and comprises:
Described base station determines that the public search space of the physical downlink control channel PDCCH under current LTE system bandwidth is outside described overlapped frequency bands;
When present sub-frame has common control channel order to need to dispatch, described base station controls described downlink scheduler and distribute control channel unit in described public search space;
Described base station controls described downlink scheduler and distributes Physical Resource Block beyond described overlapped frequency bands.
5. method according to claim 1, is characterized in that, described base station controls downlink scheduler for the control channel unit beyond overlapped frequency bands described in described signaling and/or described data allocations and Physical Resource Block and comprises:
Described base station determines that the public search space of the PDCCH under current LTE system bandwidth is within described overlapped frequency bands;
When present sub-frame has common control channel to make to need scheduling, described base station control described downlink scheduler described public search space according to aggregation levels be 8 and lowest bit rate distribute control channel unit;
Described base station controls described downlink scheduler and distributes Physical Resource Block beyond described overlapped frequency bands.
6. a base station, is characterized in that, described base station is arranged in Long Term Evolution LTE system, and described base station comprises:
Distribution module, for when the frequency range of described LTE system and other mobile communication system exist overlapped frequency bands, is the frequency band outside overlapped frequency bands described in the signaling of described base-station transmission and/or data allocations;
Wherein, described distribution module is used for there is described overlapped frequency bands in described LTE system and other mobile communication system at up direction or down direction, and when described overlapped frequency bands is marginal mode overlap, shrink the next agreement frequency band of frequency band to described overlapped frequency bands of up direction or down direction in described LTE system, and be next agreement frequency band described in the described signaling of described base-station transmission and/or described data allocations; Or, described distribution module is used for there is overlapped frequency bands in described LTE system and other mobile communication system, and when described overlapped frequency bands is plug-in type overlap, controlling uplink scheduling device is the Physical Resource Block beyond overlapped frequency bands described in described signaling and/or described data allocations.
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| PCT/CN2011/077588 WO2012083692A1 (en) | 2010-12-24 | 2011-07-25 | Method for avoiding interference of lte system and base station |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014005322A1 (en) * | 2012-07-06 | 2014-01-09 | Nokia Siemens Networks Oy | Search spaces for wireless communications |
| WO2014169486A1 (en) * | 2013-04-19 | 2014-10-23 | 华为技术有限公司 | Method and device for determining resource |
| CN105075318B (en) * | 2013-07-02 | 2019-05-07 | 华为技术有限公司 | The method and apparatus that different system interference is evaded in a kind of reuse Spectrum Scheme |
| CN105025494B (en) * | 2014-10-30 | 2019-01-15 | 魅族科技（中国）有限公司 | A kind of wireless communications method, relevant device and system |
| CN106162913B (en) * | 2015-04-21 | 2020-09-22 | 索尼公司 | Spectrum coordination device and method, and device and method in wireless communication system |
| WO2017107013A1 (en) * | 2015-12-21 | 2017-06-29 | 华为技术有限公司 | Resource scheduling method, device and base station |
| CN108282885B (en) * | 2017-01-06 | 2021-12-31 | 华为技术有限公司 | Method and device for signal transmission |
| CN106792733B (en) * | 2017-01-22 | 2019-02-15 | 维沃移动通信有限公司 | A kind of control method and mobile terminal of communication bandwidth |
| CN108990153B (en) * | 2017-06-02 | 2021-05-14 | 维沃移动通信有限公司 | Transmission method, related equipment and system for terminal self-interference |
| CN110290499B (en) * | 2019-06-19 | 2022-08-09 | 中铁第四勘察设计院集团有限公司 | Interference coordination method and device for LTE-R and wireless train dispatching communication system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232697A (en) * | 2007-01-24 | 2008-07-30 | 鼎桥通信技术有限公司 | System and method for distributing carrier wave frequency range in honeycomb mobile communication system |
| CN101578898A (en) * | 2007-01-15 | 2009-11-11 | Lm爱立信电话有限公司 | Method and radio base station for effective spectrum utilization |
| CN101600210A (en) * | 2008-12-30 | 2009-12-09 | 上海无线通信研究中心 | Frequency reuse and allocation method based on the mobile communication system network of different bandwidth |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7583935B2 (en) * | 2005-07-08 | 2009-09-01 | Telcom Ventures, Llc | Method and system for mitigating co-channel interference |
| KR101622954B1 (en) * | 2009-06-10 | 2016-05-20 | 삼성전자주식회사 | Apparatus and method for resource allocation information transmission in mobile communication system |
| US8825066B2 (en) * | 2009-06-16 | 2014-09-02 | Nokia Corporation | Apparatus and method for interworking between multiple frequency band modes |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578898A (en) * | 2007-01-15 | 2009-11-11 | Lm爱立信电话有限公司 | Method and radio base station for effective spectrum utilization |
| CN101232697A (en) * | 2007-01-24 | 2008-07-30 | 鼎桥通信技术有限公司 | System and method for distributing carrier wave frequency range in honeycomb mobile communication system |
| CN101600210A (en) * | 2008-12-30 | 2009-12-09 | 上海无线通信研究中心 | Frequency reuse and allocation method based on the mobile communication system network of different bandwidth |
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