CN101420734A - Downlink interference collaboration method and base station - Google Patents
Downlink interference collaboration method and base station Download PDFInfo
- Publication number
- CN101420734A CN101420734A CNA2008101801694A CN200810180169A CN101420734A CN 101420734 A CN101420734 A CN 101420734A CN A2008101801694 A CNA2008101801694 A CN A2008101801694A CN 200810180169 A CN200810180169 A CN 200810180169A CN 101420734 A CN101420734 A CN 101420734A
- Authority
- CN
- China
- Prior art keywords
- high power
- frequency band
- user
- neighbor cell
- district
- 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.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a downlink interference coordination method and a base station. In the embodiment of the invention, the interference among cells is minimized and the interference coordination between the cells is realized by the following steps: identifying a high power user in a current cell; acquiring a high power frequency band used by the high power user in the cell neighboring to the current cell; and setting the high power frequency band for the high power user in the current cell, wherein, the high power frequency band set for the high power user in the current cell is different from the high power frequency band used by the high power user in the neighbor cell. Compared with the prior art in which the users are differentiated according to geographic positions of the users, the method is more reasonable due to differentiation of the users according to the power, and the method helps realize allocation of the used frequency bands of the high power users, reduce the interference among the cells and improve the communication quality by the coordination among the cells.
Description
Technical field
The present invention relates to communication technical field, be specifically related to downlink interference collaboration method and base station.
Background technology
The throughput that how to improve Cell Edge User is one of next generation mobile communication system challenge that will face, distance between Cell Edge User and the base station is distant, signal energy has experienced bigger decay, the useful signal strength ratio that arrives edge customer is less, simultaneously because OFDM (OrthogonalFrequency Division Multiplexing, OFDM) system's different districts adopts same frequency to send, other sub-districts, minizone are bigger for the interference ratio of edge customer, the average signal that causes Cell Edge User and interference plus noise than (Signal to Interference plus Noise Ratio, SINR) smaller.So the minizone co-channel interference is one of principal element of decision Cell Edge User SINR.
Improve the SINR of Cell Edge User, the throughput that improves edge customer is super 3G (Third Generation) Moblie (Beyond 3G, B3G) major issue must considering during system design, and the co-channel interference that suppresses the minizone is the fundamental way that addresses this problem.
In the interference coordination schemes commonly used, think that the interference of minizone mainly occurs in the border of sub-district, therefore adopt partial frequency multiplexing, the edge customer of each sub-district can only use the part of whole available band, and the frequency band that edge customer uses between the adjacent cell is mutually orthogonal, to eliminate main interference, because the path loss (Path loss) of edge customer is bigger, so the edge customer terminal sends with total power when upstream data, to improve the throughput of edge customer.In order to improve the availability of frequency spectrum, Cell Center User can use whole frequency band, in order to reduce the interference to adjacent cell, reduces the transmitting power of Cell Center User simultaneously, because the path loss of central user is less, so it is relatively little to its operate as normal influence to reduce its transmitting power.The power ratio that important parameters of this scheme is Cell Center User and edge customer.
In research and practice process to prior art, the present inventor finds that there is following shortcoming in prior art:
According to the geographical position user area in the sub-district is divided into edge customer and central user in the prior art, and to the frequency band that the power of Cell Edge User uses settings of staggering, with the descending interference of reduction minizone.But, if the position is a lot of in the customer service at center, the base station is very big to its transmitting power (descending power) so, this user is actually very big for neighbor cell interference so, if same its professional lacking of user that is positioned at the edge, the base station is little to its transmitting power, also is very little for neighbor cell interference so.Therefore in the prior art, the interference coordination mode of carrying out the power band differentiation according to edge customer and central user for user in the sub-district is also unreasonable, so that existing interference coordination schemes is undesirable to the treatment effect of presence of intercell interference.
Summary of the invention
The embodiment of the invention provides downlink interference collaboration method and base station, can better reduce the descending interference of minizone, improves communication quality.
A kind of downlink interference collaboration method that the embodiment of the invention provides comprises:
High power user in the identification current area;
Obtain high power frequency band with the interior high power user use of the neighbor cell of described current area;
For the high power user in the described current area is provided with the high power frequency band, described high power frequency band for the setting of the high power user in the current area is distinguished mutually with the high power frequency band that the interior high power user of described neighbor cell uses, to minimize presence of intercell interference.
A kind of base station that the embodiment of the invention provides comprises:
The user area subdivision is used to discern the high power user in the current area;
The band information acquiring unit is used to obtain the high power frequency band that the high power user uses in the neighbor cell with described current area;
Frequency band is provided with the unit, is used to the high power user in the described current area that the high power frequency band is set; Described high power frequency band for the setting of the high power user in the current area is distinguished mutually with the high power frequency band that the interior high power user of described neighbor cell uses, to minimize presence of intercell interference.
In the embodiment of the invention high power user area in the sub-district is branched away, high power frequency band by high power user use in the neighbor cell of acquisition and described sub-district, for the high power user in the sub-district be provided with neighbor cell in the frequency band distinguished mutually of high power user, with respect to the mode of distinguishing user and allocated frequency band in the prior art according to user's geographical position, the embodiment of the invention is more reasonable according to the power distinction user, the same frequency that has reduced between the high power user of minizone disturbs, and has improved communication quality.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention one descending disturbance coordination method;
Fig. 2 is the flow chart of the embodiment of the invention two downlink interference collaboration methods;
Fig. 3 is the logical construction schematic diagram of the embodiment of the invention three base stations;
Fig. 4 is the logical construction schematic diagram of the embodiment of the invention four base stations.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only 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.
The embodiment of the invention provides a kind of downlink interference collaboration method and base station, is elaborated below.
Embodiment one, a kind of downlink interference collaboration method, flow chart comprises as shown in Figure 1:
A1, the high power user in the identification current area;
In the embodiment of the invention, the high power user in the identification current area can realize in the following manner:
The power threshold that the base station acquisition is preset;
Whether the power that is judged as user's distribution is higher than the described power threshold that presets, if confirm that then this user is the high power user.
Be appreciated that described power threshold can be to set in advance, the concrete threshold value of its setting can be considered the capacity of sub-district, the factors such as power setting of geographic properties and neighbor cell, and the threshold value of concrete setting is not construed as limiting the invention.
A2 obtains the high power frequency band that uses with the interior high power user of the neighbor cell of described current area;
High power frequency band for the high power user of neighbor cell uses can also can directly get access to by realizing alternately between the base station, and is concrete:
If adjacent sub-district and current area belongs to same base station, then, promptly can realize obtaining of neighbor cell high power user's service band directly by the data dispatch of inside of base station; If adjacent sub-district belongs to different base stations, then can realize that by the message that sends between the base station described message comprises the high power frequency band that the high frequency user in the described neighbor cell uses.Concrete message can be relative arrowband transmitted power (RNTP) message, be appreciated that by other can user base station between the message of interaction data all can be used as the carrier that obtains band information, concrete message is not construed as limiting the invention.
For RNTP message, can transmit by X2 interface, message content mainly comprises:
1, high power frequency band and low-power frequency band division, the concrete bitmap (bitmap) that can adopt is indicated, for example: system bandwidth is 10M, i.e. 50 Resource Block (resource block, RB), create the one-dimension array of 50 elements so, if certain element value is 1, represent that so this place's frequency band is the high power frequency band, if be 0 then for the low-power frequency band;
2, RNTP message can also comprise the described power threshold that presets, and has indicated the constraint of cell transmit power on frequency band in a period of time in future.
Be appreciated that, this sub-district provides support for if desired adjacent sub-district, frequency band division in this sub-district and power threshold can be sent to neighbor cell by RNTP message, and the low-power user is dispatched as far as possible high power frequency band scheduling high power user in this sub-district as far as possible on the low-power frequency band.Send RNTP message and can pass through Event triggered to neighbor cell, also can send in the cycle, for example: it sends the minimum interval is 200ms.
A3, for the high power user in the described current area is provided with the high power frequency band, the high power user in the described current area is provided with the high power frequency band and distinguishes mutually with the high power frequency band that the interior high power user of described neighbor cell uses, to minimize presence of intercell interference.
In this step, can be by the setting of base station execution to high power user frequency band.High power user in the described current area is provided with in high power frequency band and the described neighbor cell high power frequency band of high power user use and distinguishes mutually and comprise:
High power user in the described current area is provided with the high power frequency band that the high power user uses in high power frequency band and the described neighbor cell and staggers fully; Perhaps the high power frequency band that high power user use in high power frequency band and the described neighbor cell is set of the high power user in the current area is overlapped.
If the high power frequency band that high power user in the current area and the high power user in the neighbor cell use can stagger fully, then the interference minimum of minizone.In the actual conditions, because the band resource of sub-district is limited, might can't realize staggering fully, adopt so overlap, mode that part staggers can obtain better technical effect equally, between the sub-district through consultation mode confirm that the mode that overlapping frequency band also can be taked to give tacit consent to confirms overlapping frequency band.In the technical scheme that the embodiment of the invention provides, emphasize the high power frequency band that the high power user uses between the neighbor cell that staggers as much as possible.
The technical scheme of the embodiment of the invention, high power user in the identification sub-district, obtain high power frequency band with the interior high power user use of the neighbor cell of described sub-district, for the high power user in the described sub-district is provided with the high power frequency band, the high power frequency band of described setting is distinguished mutually with the interior employed high power frequency band of high power user of the neighbor cell of described sub-district, thereby has realized the coordination of presence of intercell interference.Because according to the power distinction user, more reasonable with respect to distinguishing the user according to user's geographical position in the prior art, and realized the distribution of high power user service band having reduced the interference of minizone by the negotiation of minizone, improved communication quality.
In the embodiment of the invention, share by the high power band information between the neighbor cell, can accomplish each sub-district distribution according to need high power frequency band as far as possible, thereby when guaranteeing that each cell load is uneven, the high power transmission frequency band that also can finely stagger reaches the very heavy sub-district of high power load and can access more high power frequency band, to promote the throughput that this sub-district is in edge customer, and less high power frequency band is distributed in the very light sub-district of high power load, avoids the waste of frequency band.
Be appreciated that on the embodiment of the invention one method basis, can judge the annoyance level of neighbor cell, and adjust the number of power threshold and high power frequency band according to the result who judges current area.Be specifically as follows:
If described current area increases the interference of neighbor cell, then can take following three kinds of modes to reduce interference:
1, increases the high power frequency band of the high power user use of sub-district;
2, high power user's power in the rising sub-district;
3, high power user's power in the first rising sub-district, back increase the high power frequency band that the high power user of sub-district uses.
Whether current area to the judgment mode that the interference of neighbor cell increases is:
The total number of frequency band that the high power user that statistics is dispatched on the low-power frequency band uses if this total number has surpassed certain threshold value, confirms that then current area increases the interference of neighbor cell.Because the low-power frequency band does not have to adopt and the frequency band of neighbor cell is distinguished setting, therefore when the user power of dispatching on the low-power frequency band is too high, the interference that neighbor cell is produced is very big, is because the high power frequency band number that is provided with can't satisfy high power user's bandwidth requirements and the high power user why occurs on the low-power frequency band.
Take above-mentioned three kinds of modes to reduce co-channel interference in the embodiment of the invention, in above-mentioned three kinds of modes, the power of high power user in the sub-district can raise earlier, because rising power can play the purpose that discharges frequency band, make the high power frequency band of high power CU can obtain discharging, then can be moved on the high power frequency band the high power user who dispatches on the low-power frequency band like this and dispatch, reduce co-channel interference with neighbor cell.After power is elevated to maximum, if still can't satisfy demand to the high power frequency band, then can be by increasing the mode of high power frequency band, because the band resource in the sub-district is very limited, therefore the mode that can first-selected first bring to power in the embodiment of the invention increases frequency band again is with maximized saving band resource.
In like manner if described current area to the interference reduction of neighbor cell, then can take following several mode to fall further reduction interference or release frequency band.Concrete with reference to following three kinds of modes:
Then reduce the high power frequency band of the high power user use of sub-district;
Or high power user's power in the reduction sub-district;
Or elder generation reduces the frequency band of the high power user use of sub-district, high power user's power in the reduction sub-district, back.
Described current area to the judgment mode of the interference reduction of neighbor cell is:
The total number of frequency band that the low-power user that statistics is dispatched on the high power frequency band uses if this total number has surpassed certain threshold value, is then confirmed the interference reduction of current area to neighbor cell.Because the low-power user who dispatches on the high power frequency band is many more, explanation is more little to neighbor cell interference, because the interference of neighbor cell is mainly produced by the high power user, in this case, explanation is superfluous to the setting of high power frequency band, can reclaim some high power frequency bands.Therefore in this example in above-mentioned three kinds of processing modes, the high power frequency band that the first-selected high power user who reduces the sub-district uses; Can discharge the band resource of more preciousnesses like this, the power that further can reduce high power user use plays the purpose that further reduction is disturbed.Can take more band resource because reduce power, thus the scheme of the embodiment of the invention, can be after discharging abundant band resource, the mode of taking again to reduce user power reduces interference.
In the present embodiment, may further include: if the high power frequency band setting that the high power user in the described sub-district is provided with is finished or described sub-district in the high power frequency band that is provided with of high power user adjust, then notify this sub-district of described neighbor cell high power user the high power frequency band of use.
In the embodiment of the invention, if described current area is under the jurisdiction of different base stations with described neighbor cell, the high power frequency band that the high power user uses in the neighbor cell of then described acquisition and described current area comprises:
The relative arrowband transmitted power RNTP message that the base station that reception of neighboring cell is subordinate to sends comprises the high power frequency band that the high power user uses in the described neighbor cell in the described RNTP message;
If described current area is under the jurisdiction of identical base station with described current area, the high power frequency band that the high power user uses in the neighbor cell of then described acquisition and described current area comprises:
Directly, obtain the high power frequency band that the high power user uses in the neighbor cell by the data dispatch of inside of base station.
Be appreciated that in the present embodiment that the high power user in the steps A 3 described current area can also comprise before the high power frequency band is set: the power threshold that obtains described neighbor cell; And judge whether that according to the described power threshold that obtains needs are provided with the high power frequency band difference that high power user in the high power frequency band of current area and the described neighbor cell uses.
Because a user is according to factors such as business, path losses, distribute the power that obtains to be lower than the power threshold that presets, this user is the low-power user so, and the person is not the high power user, so power threshold is distinguished significant for high power user and low-power user.Because the high power user sends on the high power frequency band, and neighbor cell high power frequency band may be able to stagger, but the low-power frequency band can't painstakingly stagger, so be that power threshold has characterized in this sub-district the low-power user to the annoyance level of neighbor cell, this value is big more, and is big more to the interference of neighbor cell.
Therefore obtain the power threshold of neighbor cell, can learn the annoyance level of this sub-district to this sub-district, when the neighbor cell power threshold value of obtaining reaches default value, then start the mechanism that staggers with neighbor cell high power frequency band, disturb to reduce, described default value can be provided with according to the s own situation of sub-district, is not construed as limiting the invention.
Sub-district in the embodiment of the invention can be Long Term Evolution LTE system or global interactive inserting of microwave Wimax system cell, and described base station is the base station of LTE system or Wimax system.
By the dynamic mode of adjusting of above-mentioned regular statistics, make the high power frequency band between sub-district and the neighbor cell has been accomplished dynamic whole control, more effectively utilize the radio band resource with respect to prior art, improved the throughput and the communication quality of network.Below above-mentioned mode of carrying out frequency band and power adjustment is described further.
Embodiment two, and a kind of downlink interference collaboration method, flow chart comprise as shown in Figure 2:
High power user and low-power user in the B1, base station distinguishing cell; Specifically distinguish, repeat no more herein by power threshold.
B2, the base station judges whether to trigger the high power frequency band incident that increases; If then continue step B3; If not, then continue step B4;
Because the high power frequency band is limited, scheduler is when each scheduling, the total number of frequency band that the high power user that statistics is dispatched on the low-power frequency band uses is if this total number has surpassed certain threshold value (system bandwidth * A%), trigger the high power frequency band incident that increases.With reference to the analysis in the foregoing description one,, can think that then current area has increased the interference of neighbor cell if the total number of frequency band that the high power user who dispatches on the low-power frequency band uses has surpassed certain threshold value.What deserves to be explained is that threshold value can be set as required, concrete set point is not construed as limiting the invention.
B3, the base station increases the event handling of high power frequency band, and back execution in step B6 finishes dealing with.
The processing mode of concrete high power frequency band incident is divided into two kinds of situations again according to scene:
When 1, initial, the arrowband transmitted power indicates this sub-district not to be subjected to frequency band division and threshold value restriction (this sub-district acquiescence is the low-power frequency band entirely) relatively.Begin to start descending Inter-Cell Interference Coordination, determine the number and the position of high power frequency band, if receive the relative arrowband transmitted power message of other sub-districts, the high power frequency band of other sub-districts staggers so earlier, if the total number of frequency band that remaining frequency band uses greater than the high power user who dispatches on the low-power frequency band, then the total number of using according to the high power user who dispatches on the low-power frequency band of frequency band increases the high power frequency band, otherwise, remaining frequency band is set to the high power frequency band of this sub-district entirely, and power threshold is set for the first time.If other sub-district high power frequency bands have taken frequency band, this sub-district no longer sends relative arrowband transmitted power message to neighbor cell so.
2, this sub-district had sent relative arrowband transmitted power message to neighbor cell, and had divided high power and low-power frequency band, was provided with power threshold.Judge whether power threshold is set to maximum, maximum if power threshold does not arrive, so first bring to power threshold value.In the embodiment of the invention, after power threshold is provided, when send relative arrowband transmitted power message to neighbor cell next time, carrying this power threshold can be so that neighbor cell be learnt the power divider situation and the annoyance level of this sub-district, to judge whether to enable the downlink interference collaboration scheme among the present invention, the more important thing is that the bring to power threshold value can further play the purpose of the power that improves the high power user, to discharge more frequency band to satisfy the demand of this sub-district to the high power frequency band.Be appreciated that, in the embodiment of the invention, also can not reach the purpose of the power that promotes the high power user by the bring to power threshold value, but directly adopt the mode of the power that promotes the high power user to carry out, the mode of concrete lifting high power user's power also has multiple in conjunction with the prior art scheme, be not construed as limiting the invention.
If threshold value has arrived maximum, do similar processing in 1, after promptly having received the relative arrowband transmitted power message of other sub-districts, the high power frequency band of neighbor cell staggers earlier, if the total number of frequency band that remaining frequency band number is used greater than the described high power user who dispatches on the low-power frequency band, then the total number of using according to the high power user who dispatches on the low-power frequency band of frequency band increases the high power frequency band, otherwise remaining frequency band is set to the high power frequency band of this sub-district; If other sub-district high power frequency bands have taken frequency band, this sub-district does not send new relative arrowband transmitted power message to neighbor cell so, and previous relative arrowband transmitted power message is still observed in scheduling.
B4 judges whether to trigger and reduces high power frequency band incident, if then continue step B5; If not, then continue step B6.
The high power user who originally on the high power frequency band, dispatches, if its traffic carrying capacity reduces, perhaps channel quality improves, its transmitted power can become less than power threshold so, scheduler is when each scheduling, statistics on the high power frequency band transmitting power less than the frequency band number of power threshold CU, if total frequency band number has surpassed certain threshold value (system bandwidth * B%), trigger the high power frequency band incident that reduces, with reference to the foregoing description one, if transmitting power has surpassed certain threshold value less than the frequency band number of power threshold CU on the described high power frequency band, can think that then current area is to the interference reduction of neighbor cell.What deserves to be explained is that threshold value can be set as required, concrete set point is not construed as limiting the invention.
B5 reduces the event handling of high power frequency band, and back execution in step B6 finishes dealing with.
The processing mode of concrete minimizing high power frequency band incident can be:
In the embodiment of the invention, can discharge on the high power frequency band transmitting power less than the frequency band number of power threshold CU.Also can adopt another implementation: judge earlier whether new high power frequency band number is lower than a threshold value (system bandwidth * C%).If be not less than threshold value, can discharge above-mentioned high power frequency band number so, and send new relative arrowband transmitted power message to neighbor cell; If be lower than threshold value, judge so further whether power threshold drops to minimum, if dropped to minimum, send relative arrowband transmitted power message so to neighbor cell, indicate this sub-district not to be subjected to frequency band division and Power Limitation, promptly all frequency bands are all got back to the state of low-power frequency band, and all elements are designated as 0 in the bit diagram (bitmap) of carrying in the relative arrowband transmitted power message of transmission.If power threshold does not drop to minimum, the one-level that then power threshold descended, and send relative arrowband transmitted power message informing neighbor cell.
B6 after the time that wait is preset, repeats described step B1 to B5.
Step B2 and step B4 do not have absolute execution sequencing in the embodiment of the invention, also can carry out the deterministic process and the processing that trigger the incident that reduces the high power frequency band earlier, carry out deterministic process and the processing that increases the incident that reduces the high power frequency band again, further, step B2 step B4 also can carry out separately, be that two independent flow processs are judged, do not embody logical relation each other, trigger getting final product separately according to certain trigger condition, concrete triggering is not construed as limiting the invention opportunity.
The embodiment of the invention two, realized the dynamic assignment of the high power frequency band of minizone, can be when the high power frequency band is in short supply saves the high power frequency band or directly increase the high power frequency band and reduce interference by promoting user power, under the situation of high power frequency band surplus, discharge the high power frequency band, make that the band plan in the sub-district is more reasonable, improve the utilance of frequency band, and then promoted the throughput of sub-district.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
Embodiment three, a kind of base station, structural representation comprises as shown in Figure 3: user area subdivision 310, band information acquiring unit 320 and frequency band are provided with unit 330;
Band information acquiring unit 320 is used to obtain the high power frequency band that the high power user uses in the neighbor cell with described current area;
Frequency band is provided with unit 330, is used to the high power user in the described current area that the high power frequency band is set; The high power frequency band that high power user in the described current area is provided with is distinguished mutually with the high power frequency band that the interior high power user of described neighbor cell uses, to minimize presence of intercell interference.
, be the structural representation of the embodiment of the invention four base stations further, comprise with reference to figure 4:
User area subdivision 410, band information acquiring unit 420 and frequency band are provided with unit 430;
Described user area subdivision 410 is used to discern the high power user in the current area;
Band information acquiring unit 420 is used to obtain the high power frequency band that the high power user uses in the neighbor cell with described current area;
Frequency band is provided with unit 430, is used to the high power user in the described current area that the high power frequency band is set; The high power frequency band that high power user in the described current area is provided with is distinguished mutually with the high power frequency band that the interior high power user of described neighbor cell uses, to minimize presence of intercell interference.
In the present embodiment, described user area subdivision 410 can comprise:
Power threshold obtains subelement 411, is used to the power threshold that obtains to preset;
User Recognition subelement 412 is used to be judged as the power that the user distributes in the sub-district and whether is higher than the described power threshold that presets, and is the high power user if then confirm this user; If not, confirm that then this user is the low-power user.
In the embodiment of the invention, if current area belongs to different base stations with neighbor cell, so described band information acquiring unit 420 comprises:
Message sink subelement 421 is used to receive the RNTP message that described sub-district neighbor cell sends, and described RNTP message comprises the high power frequency band that the high frequency user in the described neighbor cell uses;
Information is obtained subelement 422, is used for obtaining the high power band information that the high power user of the RNTP message that described sub-district neighbor cell that described message sink subelement receives sends uses.
In the embodiment of the invention, described base station can also comprise:
Judging unit 440 is used to judge whether current area increases the interference of neighbor cell or reduce; Adjustment unit 450, when being used for judged result when described judging unit 440 and being current area the interference of neighbor cell being increased, increase the high power frequency band of the high power user use of sub-district, or high power user's power in the rising sub-district, or high power user's power in the first rising sub-district, the back increases the high power frequency band that the high power user of sub-district uses; When the judged result of described judging unit 440 when being current area to the interference reduction of neighbor cell, reduce the high power frequency band of the high power user use of sub-district, or high power user's power in the reduction sub-district, or elder generation reduces the frequency band of the high power user use of sub-district, high power user's power in the reduction sub-district, back.
The method that can move of the base station that inventive embodiments provides can no longer repeat at this with reference to above to the description of downlink interference collaboration method embodiment provided by the invention.
The inventive method and base station can be applied to Long Term Evolution (Long Term Evolution, LTE) in the system, but can in other system, use equally based on OFDM, such as the interactive inserting of microwave in the whole world (Worldwide Interoperability for Microwave Access, WIMAX) system.
More than downlink interference collaboration method and base station that the embodiment of the invention provided are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (15)
1, a kind of downlink interference collaboration method is characterized in that, comprising:
High power user in the identification current area;
Obtain high power frequency band with the interior high power user use of the neighbor cell of described current area;
For the high power user in the described current area is provided with the high power frequency band, described high power frequency band for the setting of the high power user in the current area is distinguished mutually with the high power frequency band that the interior high power user of described neighbor cell uses, to minimize presence of intercell interference.
2, the method for claim 1 is characterized in that, the process of the high power user in the described identification current area comprises:
Whether the power that is judged as the user's distribution in the sub-district is higher than the power threshold that presets, if confirm that then this user is the high power user.
3, the method for claim 1 is characterized in that, the high power user in the described current area is provided with in high power frequency band and the described neighbor cell high power frequency band of high power user use and distinguishes mutually and comprise:
The high merit frequency band that the high power user uses in high power frequency band that high power user in the described current area is provided with and the described neighbor cell staggers fully;
Perhaps the high power frequency band that the high power user uses in the high power frequency band of the setting of the high power user in the current area and the described neighbor cell is overlapped.
4, the method for claim 1 is characterized in that, further comprises:
If described current area increases the interference of neighbor cell, then increase the high power frequency band of the high power user use of sub-district;
Or high power user's power in the rising sub-district;
Or high power user's power in the first rising sub-district, the back increases the high power frequency band that the high power user of sub-district uses.
5, method as claimed in claim 4 is characterized in that, whether current area to the judgment mode that the interference of neighbor cell increases is:
The total number of frequency band that the high power user that statistics is dispatched on the low-power frequency band uses if this total number has surpassed certain threshold value, confirms that then current area increases the interference of neighbor cell.
6, the method for claim 1 is characterized in that, further comprises:
If described current area is to the interference reduction of neighbor cell, then
Then reduce the high power frequency band of the high power user use of sub-district;
Or high power user's power in the reduction sub-district;
Or elder generation reduces the high power frequency band of the high power user use of sub-district, high power user's power in the reduction sub-district, back.
7, method as claimed in claim 6 is characterized in that, described current area to the judgment mode of the interference reduction of neighbor cell is:
The total number of frequency band that the low-power user that statistics is dispatched on the high power frequency band uses if this total number has surpassed certain threshold value, is then confirmed the interference reduction of current area to neighbor cell.
8, as any described method of claim 1 to 7, it is characterized in that, if described current area is under the jurisdiction of different base stations with described neighbor cell, the high power frequency band that the high power user uses in the neighbor cell of then described acquisition and described current area comprises:
The relative arrowband transmitted power RNTP message that the base station that reception of neighboring cell is subordinate to sends comprises the high power frequency band that the high power user uses in the described neighbor cell in the described RNTP message;
If described current area is under the jurisdiction of identical base station with described current area, the high power frequency band that the high power user uses in the neighbor cell of then described acquisition and described current area comprises:
Directly, obtain the high power frequency band that the high power user uses in the neighbor cell by the data dispatch of inside of base station.
9, as any described method of claim 1 to 7, it is characterized in that, also comprise before for the high power user in the described current area is provided with the high power frequency band: the power threshold that obtains described neighbor cell; And judge whether that according to the described power threshold that obtains needs are provided with the high power frequency band difference that high power user in the high power frequency band of current area and the described neighbor cell uses.
10, as any described method of claim 1 to 7, described sub-district is Long Term Evolution LTE system or global interactive inserting of microwave Wimax system cell, and described base station is the base station of LTE system or Wimax system.
11, as any described method of claim 1 to 7, it is characterized in that, if the high power frequency band setting that the high power user in the described sub-district is provided with is finished or described sub-district in the high power frequency band that is provided with of high power user adjust, then notify this sub-district of described neighbor cell high power user the high power frequency band of use.
12, a kind of base station is characterized in that, comprising:
The user area subdivision is used to discern the high power user in the current area;
The band information acquiring unit is used to obtain the high power frequency band that the high power user uses in the neighbor cell with described current area;
Frequency band is provided with the unit, be used to the high power user in the described current area that the high power frequency band is set, described high power frequency band for the setting of the high power user in the current area is distinguished mutually with the high power frequency band that the interior high power user of described neighbor cell uses, to minimize presence of intercell interference.
13, base station as claimed in claim 12 is characterized in that, described user area subdivision comprises:
Power threshold obtains subelement, is used to the power threshold that obtains to preset;
The User Recognition subelement is used to be judged as the power that the user distributes and whether is higher than the described power threshold that presets, and is the high power user if then confirm this user; If not, confirm that then this user is the low-power user.
14, base station as claimed in claim 12 is characterized in that, described band information acquiring unit comprises:
The message sink subelement is used to receive the RNTP message that the neighbor cell of described current area sends, and described RNTP message comprises the high power frequency band that the high frequency user in the described neighbor cell uses;
Information is obtained subelement, is used for obtaining the high power band information that the high power user of the RNTP message that described sub-district neighbor cell that described message sink subelement receives sends uses.
15, as each described base station of claim 12 to 14, it is characterized in that, also comprise:
Judging unit is used to judge whether current area increases the interference of neighbor cell or reduce;
Adjustment unit, when being used for judged result when described judging unit and being current area the interference of neighbor cell being increased, increase the high power frequency band of the high power user use of sub-district, or high power user's power in the rising sub-district, or high power user's power in the first rising sub-district, the back increases the high power frequency band that the high power user of sub-district uses; When the judged result of described judging unit when being current area to the interference reduction of neighbor cell, reduce the high power frequency band of the high power user use of sub-district, or high power user's power in the reduction sub-district, or elder generation reduces the frequency band of the high power user use of sub-district, high power user's power in the reduction sub-district, back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101801694A CN101420734A (en) | 2008-11-28 | 2008-11-28 | Downlink interference collaboration method and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101801694A CN101420734A (en) | 2008-11-28 | 2008-11-28 | Downlink interference collaboration method and base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101420734A true CN101420734A (en) | 2009-04-29 |
Family
ID=40631266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101801694A Pending CN101420734A (en) | 2008-11-28 | 2008-11-28 | Downlink interference collaboration method and base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101420734A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969645A (en) * | 2009-07-27 | 2011-02-09 | 华为技术有限公司 | Interference treatment method and home base station |
| CN101998412A (en) * | 2009-08-11 | 2011-03-30 | 中国移动通信集团公司 | Frequency resource allocation method, home node B management system (HMS) and Femto eNB |
| CN102142871A (en) * | 2010-01-29 | 2011-08-03 | 普天信息技术研究院有限公司 | Improved channel sounding reference signal transmitting method and system |
| CN102238556A (en) * | 2010-04-29 | 2011-11-09 | 中兴通讯股份有限公司 | Method and system for processing interference by negotiation |
| WO2012000249A1 (en) * | 2010-06-30 | 2012-01-05 | 中兴通讯股份有限公司 | Method and system for realizing co-channel interference monitoring and disposal |
| CN102348267A (en) * | 2010-07-28 | 2012-02-08 | 中兴通讯股份有限公司 | Uplink power control method and base station |
| CN102378277A (en) * | 2010-08-24 | 2012-03-14 | 普天信息技术研究院有限公司 | Method for coordinating high power frequency band in long term evolved system |
| CN101707779B (en) * | 2009-11-23 | 2012-05-23 | 上海华为技术有限公司 | Resource allocation method, access network equipment and communication system |
| CN102469598A (en) * | 2010-11-16 | 2012-05-23 | 中兴通讯股份有限公司 | Method and device for resource allocation of OFDMA system |
| CN102714644A (en) * | 2010-01-08 | 2012-10-03 | 华为技术有限公司 | Method and device for resource mapping and code division multiplexing |
| WO2012174828A1 (en) * | 2011-06-24 | 2012-12-27 | 中兴通讯股份有限公司 | Scheduling method and device |
| CN103222322A (en) * | 2010-11-12 | 2013-07-24 | 株式会社Ntt都科摩 | Mobile communication method and wireless base station |
| US8605673B2 (en) | 2009-03-17 | 2013-12-10 | Huawei Technologies Co., Ltd. | Method, apparatus and system for allocating downlink power |
| WO2014110904A1 (en) * | 2013-01-17 | 2014-07-24 | 中兴通讯股份有限公司 | Method and base station for performing interference coordination in lte trunking communication system |
| CN104378763A (en) * | 2013-08-12 | 2015-02-25 | 普天信息技术有限公司 | Interference coordination method and base station |
| CN104469785A (en) * | 2013-09-23 | 2015-03-25 | 中国移动通信集团公司 | Method, system and device for cooperative communication between micro cells |
| CN105850225A (en) * | 2014-01-30 | 2016-08-10 | 英特尔公司 | Apparatus, method, and system of inter-node communication |
| CN106304367A (en) * | 2015-05-21 | 2017-01-04 | 普天信息技术有限公司 | Inter-cell interference coordination method and device |
| CN106658551A (en) * | 2015-10-30 | 2017-05-10 | 普天信息技术有限公司 | Interference management method and base station |
-
2008
- 2008-11-28 CN CNA2008101801694A patent/CN101420734A/en active Pending
Cited By (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8605673B2 (en) | 2009-03-17 | 2013-12-10 | Huawei Technologies Co., Ltd. | Method, apparatus and system for allocating downlink power |
| CN101969645A (en) * | 2009-07-27 | 2011-02-09 | 华为技术有限公司 | Interference treatment method and home base station |
| CN101998412A (en) * | 2009-08-11 | 2011-03-30 | 中国移动通信集团公司 | Frequency resource allocation method, home node B management system (HMS) and Femto eNB |
| CN101998412B (en) * | 2009-08-11 | 2013-09-25 | 中国移动通信集团公司 | Frequency resource allocation method, home node B management system (HMS) and Femto eNB |
| CN101707779B (en) * | 2009-11-23 | 2012-05-23 | 上海华为技术有限公司 | Resource allocation method, access network equipment and communication system |
| CN105281881A (en) * | 2010-01-08 | 2016-01-27 | 华为技术有限公司 | Resource mapping and code division multiplexing method and device |
| CN105119697A (en) * | 2010-01-08 | 2015-12-02 | 华为技术有限公司 | Method and device for resource mapping and method and device for code division multiplexing |
| CN105119697B (en) * | 2010-01-08 | 2018-09-07 | 华为技术有限公司 | A kind of readable storage medium storing program for executing for code division multiplexing device |
| CN105281881B (en) * | 2010-01-08 | 2018-03-27 | 华为技术有限公司 | Resource impact, code division multiplexing method and device |
| CN102714644A (en) * | 2010-01-08 | 2012-10-03 | 华为技术有限公司 | Method and device for resource mapping and code division multiplexing |
| US9496977B2 (en) | 2010-01-08 | 2016-11-15 | Huawei Technologies Co., Ltd | Method and apparatus for resource mapping and code division multiplexing |
| US9166720B2 (en) | 2010-01-08 | 2015-10-20 | Huawei Technologies Co., Ltd | Method and apparatus for resource mapping and code division multiplexing |
| US8625403B2 (en) | 2010-01-08 | 2014-01-07 | Huawei Technologies Co., Ltd. | Method and apparatus for resource mapping and code division multiplexing |
| CN102142871B (en) * | 2010-01-29 | 2014-07-16 | 普天信息技术研究院有限公司 | Improved channel sounding reference signal transmitting method and system |
| CN102142871A (en) * | 2010-01-29 | 2011-08-03 | 普天信息技术研究院有限公司 | Improved channel sounding reference signal transmitting method and system |
| WO2011091680A1 (en) * | 2010-01-29 | 2011-08-04 | 普天信息技术研究院有限公司 | Method and system for transmitting sounding reference signal |
| CN102238556B (en) * | 2010-04-29 | 2016-06-15 | 中兴通讯股份有限公司 | A kind of method and system processing interference through consultation |
| CN102238556A (en) * | 2010-04-29 | 2011-11-09 | 中兴通讯股份有限公司 | Method and system for processing interference by negotiation |
| CN102316490A (en) * | 2010-06-30 | 2012-01-11 | 中兴通讯股份有限公司 | Method and system for realizing automatic monitoring and processing of co-frequency interference |
| CN102316490B (en) * | 2010-06-30 | 2014-04-09 | 中兴通讯股份有限公司 | Method and system for realizing automatic monitoring and processing of co-frequency interference |
| WO2012000249A1 (en) * | 2010-06-30 | 2012-01-05 | 中兴通讯股份有限公司 | Method and system for realizing co-channel interference monitoring and disposal |
| CN102348267A (en) * | 2010-07-28 | 2012-02-08 | 中兴通讯股份有限公司 | Uplink power control method and base station |
| CN102378277B (en) * | 2010-08-24 | 2013-09-18 | 普天信息技术研究院有限公司 | Method for coordinating high power frequency band in long term evolved system |
| CN102378277A (en) * | 2010-08-24 | 2012-03-14 | 普天信息技术研究院有限公司 | Method for coordinating high power frequency band in long term evolved system |
| CN103222322B (en) * | 2010-11-12 | 2014-08-13 | 株式会社Ntt都科摩 | Mobile communication method and wireless base station |
| CN103222322A (en) * | 2010-11-12 | 2013-07-24 | 株式会社Ntt都科摩 | Mobile communication method and wireless base station |
| CN102469598A (en) * | 2010-11-16 | 2012-05-23 | 中兴通讯股份有限公司 | Method and device for resource allocation of OFDMA system |
| CN102469598B (en) * | 2010-11-16 | 2015-04-01 | 中兴通讯股份有限公司 | Method and device for resource allocation of OFDMA system |
| WO2012174828A1 (en) * | 2011-06-24 | 2012-12-27 | 中兴通讯股份有限公司 | Scheduling method and device |
| WO2014110904A1 (en) * | 2013-01-17 | 2014-07-24 | 中兴通讯股份有限公司 | Method and base station for performing interference coordination in lte trunking communication system |
| CN104378763A (en) * | 2013-08-12 | 2015-02-25 | 普天信息技术有限公司 | Interference coordination method and base station |
| CN104378763B (en) * | 2013-08-12 | 2017-12-05 | 普天信息技术有限公司 | A kind of disturbance coordination method and base station |
| CN104469785A (en) * | 2013-09-23 | 2015-03-25 | 中国移动通信集团公司 | Method, system and device for cooperative communication between micro cells |
| CN104469785B (en) * | 2013-09-23 | 2019-03-12 | 中国移动通信集团公司 | The method, system and device of collaboration communication between a kind of micro- station |
| CN105850225A (en) * | 2014-01-30 | 2016-08-10 | 英特尔公司 | Apparatus, method, and system of inter-node communication |
| CN106304367A (en) * | 2015-05-21 | 2017-01-04 | 普天信息技术有限公司 | Inter-cell interference coordination method and device |
| CN106304367B (en) * | 2015-05-21 | 2020-01-17 | 普天信息技术有限公司 | Inter-cell interference coordination method and device |
| CN106658551A (en) * | 2015-10-30 | 2017-05-10 | 普天信息技术有限公司 | Interference management method and base station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101420734A (en) | Downlink interference collaboration method and base station | |
| CN101820631B (en) | Method for performing coordinated scheduling among base stations in mobile communication system and base stations | |
| DE60007101T2 (en) | METHOD AND EQUIPMENT FOR CARRYING OUT RADIO COMMUNICATION IN A VARIETY OF RADIO COMMUNICATION ENVIRONMENTS | |
| GB2471284A (en) | Sub-frame allocation pattern signaling for multimedia broadcast over a single frequency network | |
| CN101911578A (en) | Preamble design for a wireless signal | |
| CN1111929A (en) | Best server selection in layered cellular radio systems | |
| CN102595616A (en) | Measurement-assisted dynamic frequency-reuse in cellular telecommuncations networks | |
| CN106888510B (en) | Method and system for realizing resource allocation, centralized controller and base station | |
| CN101621834A (en) | CoMP downlink dynamic cooperative cluster selection method based on SINR threshold and token | |
| KR20140062156A (en) | Methods and apparatus for peer discovery interference management in a wireless wide area network | |
| CN101674681A (en) | Access method in same frequency network with N frequency points | |
| CN105991272A (en) | Data transmission method and apparatus | |
| CN102144425A (en) | Fractional frequency reuse in OFDMA | |
| CN102098679B (en) | Method for reducing long term evolution (LTE) radio communication system cell interference by using cognitive technology | |
| CN107666711B (en) | Downlink resource configuration method and device | |
| CN102833756A (en) | Method for transmitting data by single subband user in OFDM (orthogonal frequency division multiplexing) system | |
| US8804550B2 (en) | Method and apparatus for reuse of adaptive partial frequency in a cellular mobile communication system | |
| CN106507368A (en) | A kind of network spectrum sharing method and system | |
| CN105072695B (en) | The almost mode adjusting method and device of blank subframe in heterogeneous network | |
| CN106304348B (en) | Resource sharing method between group user equipment and base station | |
| WO2014056650A1 (en) | Altruistic scheduling in heterogeneous wireless networks | |
| CN101516112A (en) | Multi-cell radio network controller channel information feedback and dispatching method | |
| CN103582031A (en) | Allocation method and device for physical downlink control channel resources | |
| CN103079210A (en) | Methods, evolved Node B and system for coordinating downlink interference between cells | |
| CN102843694B (en) | A kind of sending method of control information and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090429 |