CN101179312A - Multi-carrier expansion method and apparatus - Google Patents
Multi-carrier expansion method and apparatus Download PDFInfo
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- CN101179312A CN101179312A CNA2007101795735A CN200710179573A CN101179312A CN 101179312 A CN101179312 A CN 101179312A CN A2007101795735 A CNA2007101795735 A CN A2007101795735A CN 200710179573 A CN200710179573 A CN 200710179573A CN 101179312 A CN101179312 A CN 101179312A
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- 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
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention relates to a method for expanding the capacity of a multicarrier, which particularly includes the following steps: determining the transmitting power of an expansion carrier according to a load equilibrium threshold, ensuring the transmitting power of the expansion carrier is lower than that of an initial carrier, and allocating a remote station terminal on the initial carrier and a near station terminal on the expansion carrier, wherein the near station terminal and the remote station terminal are divided according to the indicating information of the calling quality of the terminals thereof. In addition, the invention also relates to a method for expanding the capacity of the multicarrier and a device thereof, which preferably alleviate the interference to the border of a multicarrier expansion cell, promote the carrier property and increase the user throughput rate on the border of the carrier cell, meanwhile the method and the device have the least effect on the initial carrier and better load balancing, further effectively reduce the operating cost.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of multi-carrier expansion method and device.
Background technology
Development along with mobile communication, user's generally experience and edge customer throughput are just seeming and are becoming more and more important, Long Term Evolution (Long Term Evolution, LTE), Ultra-Mobile Broadband (Ultra MobileBroadband, UMB) etc. the B3G/4G system in future all adopts or prepares to adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) modulation technique improves throughput and spectrum efficiency, and modulate for OFDM, for the throughput that improves the station is adopting 1/1 when multiplexing, because disturbing causes the edge customer throughput low, particularly there be not code division multiple access (Code DivisionMultiple Access, CDMA) under modulation spreading gain and the soft handover gain advantage, it is particularly outstanding that this problem just seems, so mitigate interference is the key factor that promotes network performance.
But, present various interference mitigation technology is generally at single carrier, even consideration multicarrier, but because wireless network multi-carrier expansion technology is the same in the covering of dilatation carrier wave and original carrier, this just makes prior art that following two shortcomings are arranged: 1. the dilatation carrier wave does not have any performance boost with respect to original carrier; 2. if adopt when the multi-carrier power amplifier and reserve power method then the cost height, and if do not reserve power, then can reduce original carrier power during dilatation, shrink and performance change thereby cause the original carrier forward direction to cover.
Therefore, lack a kind of can comprehensively improve between the station at present and disturb, improve all carrier cell edge customer throughputs, improve the user and generally experience, can effectively cut operating costs again simultaneously, control mode multi-carrier expansion interference mitigation technology flexibly.
Summary of the invention
The embodiment of the invention provides a kind of multi-carrier expansion method and device, to realize multi-carrier expansion cell edge interference mitigation and performance boost.
The embodiment of the invention provides a kind of multi-carrier expansion method, specifically comprises:
Determine the transmitting power of dilatation carrier wave according to the load balancing thresholding, make the transmitting power of dilatation carrier wave less than the transmitting power of original carrier;
To far stand terminal assignments on original carrier, the terminal assignments of closely standing is on the dilatation carrier wave, and described nearly station terminal and station far away terminal are divided according to the call quality indication information of terminal.
Above-mentioned multi-carrier expansion method has been realized multi-carrier expansion cell edge interference mitigation preferably, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput, simultaneously influencing minimum and having reduced operation cost effectively original carrier.
The embodiment of the invention provides a kind of multi-carrier expansion method, specifically comprises:
Determine the transmitting power of dilatation carrier wave to make the transmitting power of the transmitting power of the base station dilatation carrier wave of winning according to the first base station load balancing thresholding less than the first base station original carrier;
Terminal assignments will far be stood on original carrier in first base station, and the terminal assignments of closely standing is on the dilatation carrier wave, and the nearly station terminal of described first base station and station far away terminal are divided according to the call quality indication information of terminal;
Determine the transmitting power of the original carrier of second base station according to the second base station load balancing thresholding, make the transmitting power of original carrier of second base station less than the transmitting power of the original carrier of first base station, keep the transmitting power of the second base station dilatation carrier wave identical with the transmitting power of the original carrier of first base station;
Terminal assignments will far be stood on the dilatation carrier wave in second base station, and the terminal assignments of closely standing is on original carrier, and the nearly station terminal of described second base station and station far away terminal are divided according to the call quality indication information of terminal.
Above-mentioned multi-carrier expansion method has been realized multi-carrier expansion cell edge interference mitigation preferably, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput, simultaneously influencing minimum and having reduced operation cost effectively original carrier.
The embodiment of the invention provides a kind of multi-carrier expansion device, specifically comprises:
First module is used for determining according to the load balancing thresholding transmitting power of dilatation carrier wave, makes the transmitting power of dilatation carrier wave less than the transmitting power of original carrier;
First distribution modulator is used for the terminal assignments of far standing in original carrier, and the terminal assignments of closely standing is on the dilatation carrier wave, and wherein said nearly station terminal and station far away terminal are divided according to the call quality indication information of terminal.
Said apparatus has been realized multi-carrier expansion cell edge interference mitigation preferably, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput, simultaneously influencing minimum and having reduced operation cost effectively original carrier.
The embodiment of the invention provides a kind of multi-carrier expansion device, specifically comprises:
First module is used for determining according to the first base station load balancing thresholding transmitting power of dilatation carrier wave, makes the transmitting power of the transmitting power of the base station dilatation carrier wave of winning less than the first base station original carrier;
First distribution modulator is used for station far away terminal assignments with first base station in original carrier, and the nearly station terminal assignments of first base station is on the dilatation carrier wave, and the nearly station terminal of described first base station and station far away terminal are divided according to the call quality indication information of terminal;
Three module, be used for determining the transmitting power of the original carrier of second base station according to the second base station load balancing thresholding, make the transmitting power of original carrier of second base station less than the transmitting power of the original carrier of first base station, keep the transmitting power of the second base station dilatation carrier wave identical with the transmitting power of the original carrier of first base station;
The 3rd distribution modulator is used for station far away terminal assignments with second base station at the dilatation carrier wave, and the nearly station terminal assignments of second base station is on original carrier, and the nearly station terminal of described second base station and station far away terminal are divided according to the call quality indication information of terminal.
Said apparatus has been realized multi-carrier expansion cell edge interference mitigation preferably, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput, simultaneously influencing minimum and having reduced operation cost effectively original carrier.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the flow chart of multi-carrier expansion method embodiment one of the present invention;
Fig. 2 is the method flow diagram of the definite dilatation carrier transmit power among the multi-carrier expansion method embodiment one of the present invention;
Fig. 3 is the flow chart of multi-carrier expansion method embodiment two of the present invention;
Fig. 4 is the method flow diagram of the definite dilatation carrier transmit power among the multi-carrier expansion method embodiment two of the present invention;
Fig. 5 covers contractive effect figure for original carrier and the dilatation carrier wave of multi-carrier expansion method embodiment two of the present invention;
Fig. 6 is the flow chart of multi-carrier expansion method embodiment three of the present invention;
Fig. 7 is the method flow diagram of the definite original carrier transmitting power among the multi-carrier expansion method embodiment three of the present invention;
Fig. 8 is the flow chart of multi-carrier expansion method embodiment four of the present invention;
Fig. 9 is the method flow diagram of the definite original carrier transmitting power among the multi-carrier expansion method embodiment four of the present invention;
Figure 10 covers contractive effect figure for original carrier and the dilatation carrier wave of multi-carrier expansion method embodiment four of the present invention;
Figure 11 is the structural representation of multi-carrier expansion device embodiment one of the present invention;
Figure 12 is the structural representation of multi-carrier expansion device embodiment two of the present invention;
Figure 13 is the structural representation of multi-carrier expansion device embodiment three of the present invention;
Figure 14 is the structural representation of multi-carrier expansion device embodiment four of the present invention.
Embodiment
As shown in Figure 1, be the flow chart of multi-carrier expansion method embodiment one of the present invention, this method specifically may further comprise the steps:
Step 101, determine the transmitting power of dilatation carrier wave, make the transmitting power of dilatation carrier wave less than the transmitting power of original carrier according to the load balancing thresholding;
For the coverage that makes original carrier constant, need to keep the transmitting power of original carrier constant, in order to reduce of the interference of dilatation carrier wave to original carrier, reduce the transmitting power of dilatation carrier wave with respect to original carrier, the method of the transmitting power of above-mentioned definite dilatation carrier wave can also be judged in conjunction with other thresholding on the basis of load balancing thresholding except that foundation load balancing thresholding;
Step 102, will far stand terminal assignments on original carrier, the terminal assignments of closely standing is on the dilatation carrier wave.
When preferred terminal is in Idle state, can select the better quality of signal carrier wave resident, when terminal need be communicated by letter, when promptly being in activated state, terminal assignments will far be stood on original carrier according to the needs of load balancing in the base station, nearly station terminal assignments is on the dilatation carrier wave, and above-mentioned nearly station terminal and station far away terminal are divided according to the call quality indication information of preferred terminal.
In addition, as shown in Figure 2, be the method flow diagram of the definite dilatation carrier transmit power among the multi-carrier expansion method embodiment one of the present invention, this method specifically comprises:
Step 1011, the bound that dilatation carrier transmit power is set and initial value and load balancing thresholding;
Bound and the initial value and the load balancing thresholding of dilatation carrier transmit power are set, and the upper limit of wherein dilatation carrier transmit power is less than the transmitting power of original carrier;
Step 1012, calculate the load balancing value;
The load balancing value can be calculated according in two kinds of situations any: the first, at first during the calculated load equilibrium value, according to the initial value of the transmitting power of dilatation carrier wave and the initial value calculated load equilibrium value of original carrier transmitting power; The second, when the transmitting power of dilatation carrier wave changes, calculate the load balancing value according to the transmitting power of the dilatation carrier wave after changing and the transmitting power of original carrier; The ratio of the number of users that above-mentioned load balancing value can be carried for original carrier and dilatation carrier wave.
Step 1013, judge this load balancing value balanced thresholding that whether overloads, if surpass, then execution in step 1014, otherwise execution in step 1016;
As referred to herein surpass comprises and equaling;
Step 1014, judge whether to surpass the lower limit of dilatation carrier transmit power, if do not surpass the lower limit of dilatation carrier transmit power, then execution in step 1015, otherwise, determine that this transmitting power is the transmitting power of dilatation carrier wave;
If the transmitting power that above-mentioned definite this transmitting power is the dilatation carrier wave can have adjustment for the transmitting power of dilatation carrier wave, then the transmitting power after the adjusted is the transmitting power of dilatation carrier wave, if the transmitting power of dilatation carrier wave is not adjusted, then unadjusted transmitting power is the transmitting power of dilatation carrier wave;
The transmitting power of step 1015, minimizing dilatation carrier wave turns to step 1012;
Step 1016, judge whether to surpass the upper limit of dilatation carrier transmit power, if do not surpass the upper limit of dilatation carrier transmit power, then execution in step 1017, otherwise, determine that this transmitting power is the transmitting power of dilatation carrier wave;
The transmitting power of step 1017, increase dilatation carrier wave turns to step 1012.
Pass through aforesaid operations, making the dilatation carrier wave carry out self adaptation on the basis of initial setting up regulates, if the transmitting power of dilatation carrier wave is provided with too smallly, make the number of users of the sub-district that this transmitting power covers not satisfy the requirement of load balancing, the transmitting power that then need increase the dilatation carrier wave can be carried the preset user number until original carrier and dilatation carrier wave; If it is too much that the dilatation carrier wave is provided with, original carrier produce to be disturbed, the transmitting power that then need reduce the dilatation carrier wave is not until producing interference to original carrier, and makes original carrier and dilatation carrier wave according to the ratio carrying number of users that pre-sets.
Said method has been realized multi-carrier expansion cell edge interference mitigation, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput.
As shown in Figure 3, be the flow chart of multi-carrier expansion method embodiment two of the present invention, this method specifically may further comprise the steps:
Constant for the coverage that makes original carrier, need to keep the transmitting power of original carrier constant, in order to reduce of the interference of dilatation carrier wave, reduce the transmitting power of dilatation carrier wave with respect to original carrier to original carrier;
When preferred terminal is in Idle state, can select the better quality of signal carrier wave resident, when terminal need be communicated by letter, when promptly being in activated state, terminal assignments will far be stood on original carrier according to the needs of load balancing in the base station, nearly station terminal assignments is on the dilatation carrier wave, and above-mentioned nearly station terminal and station far away terminal are divided according to the call quality indication information of terminal.
In addition, as shown in Figure 4, be the method flow diagram of the definite dilatation carrier transmit power among the multi-carrier expansion method embodiment two of the present invention, this method specifically comprises:
Bound and initial value, load balancing thresholding, interference and the service deterioration thresholding of dilatation carrier transmit power are set, and the upper limit of wherein dilatation carrier transmit power is less than the transmitting power of original carrier;
The load balancing value can be calculated according in two kinds of situations any: the first, at first during the calculated load equilibrium value, according to the initial value of the transmitting power of dilatation carrier wave and the initial value calculated load equilibrium value of original carrier transmitting power; The second, when the transmitting power of dilatation carrier wave changes, calculate the load balancing value according to the transmitting power of the dilatation carrier wave after changing and the transmitting power of original carrier;
Indicate information calculations such as (CQI) information and carrier load to go out to disturb and service deterioration value according to the call quality of terminal feedback, because information such as channel quality (CQI) information of terminal feedback and carrier load can change, and also can change so disturb and serve the deterioration value;
If the transmitting power that above-mentioned definite this transmitting power is the dilatation carrier wave can have adjustment for the transmitting power of dilatation carrier wave, then the transmitting power after the adjusted is the transmitting power of dilatation carrier wave, if the transmitting power of dilatation carrier wave is not adjusted, then unadjusted transmitting power is the transmitting power of dilatation carrier wave;
The transmitting power of step 2017, minimizing dilatation carrier wave turns to step 2012;
The transmitting power of step 2019, increase dilatation carrier wave turns to step 2012.
Pass through aforesaid operations, making the dilatation carrier wave carry out self adaptation on the basis of initial setting up regulates, if the transmitting power of dilatation carrier wave is provided with too smallly, make the number of users of the sub-district that this transmitting power covers not satisfy the requirement of load balancing, the transmitting power that then need increase the dilatation carrier wave is carried the number of users of sub-district according to the ratio that sets in advance until original carrier and dilatation carrier wave, after the transmitting power of dilatation carrier wave satisfies the requirement of load balancing, also otherwise surpass to disturb and the thresholding of service deterioration, if the dilatation carrier wave produces original carrier and disturbs, the transmitting power that then need reduce the dilatation carrier wave is until original carrier is not produced interference; As shown in Figure 5, be that the original carrier of multi-carrier expansion method embodiment two of the present invention and dilatation carrier wave cover contractive effect figure, the transmitting power of 1 expression original carrier wherein, the transmitting power of 2 expression dilatation carrier waves.
Said method has been realized multi-carrier expansion cell edge interference mitigation preferably, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput, simultaneously to original carrier influence minimum, load balancing is better, and has reduced operation cost effectively.
As shown in Figure 6, be the flow chart of multi-carrier expansion method embodiment three of the present invention, this method specifically may further comprise the steps:
Step 301, determine the transmitting power of dilatation carrier wave to make the transmitting power of the transmitting power of the base station dilatation carrier wave of winning less than the first base station original carrier according to the first base station load balancing thresholding;
Constant for the coverage that makes the first base station original carrier, need to keep the transmitting power of the first base station original carrier constant, in order to reduce of the interference of dilatation carrier wave, reduce the transmitting power of follow-up dilatation carrier wave with respect to original carrier to original carrier;
Terminal assignments will far be stood on original carrier in step 302, first base station, and the terminal assignments of closely standing is on the dilatation carrier wave;
Terminal assignments will far be stood on original carrier according to the needs of network load equilibrium in first base station, and the terminal assignments of closely standing is on the dilatation carrier wave, and above-mentioned nearly station terminal and station far away terminal are to divide according to the call quality indication information of terminal;
Step 303, determine the transmitting power of the original carrier of second base station according to the second base station load balancing thresholding, make the transmitting power of original carrier of second base station less than the transmitting power of the original carrier of first base station, keep the transmitting power of the second base station dilatation carrier wave identical with the transmitting power of the original carrier of first base station;
In order to reduce the interference between base station and the base station better, can realize by using different carrier waves between adjacent base station, thereby can reduce the transmitting power of the original carrier of second base station adjacent with first base station;
Terminal assignments will far be stood on the dilatation carrier wave in step 304, second base station, and the terminal assignments of closely standing is on original carrier.
Above-mentioned nearly station terminal and station far away terminal are to divide according to the call quality indication information of preferred terminal.
Wherein, in the above-mentioned steps 301, determine that according to the first base station load balancing thresholding method of the transmitting power of dilatation carrier wave can adopt the method for definite dilatation carrier transmit power of multi-carrier expansion method embodiment one of the present invention.
In addition, as shown in Figure 7, be the method flow diagram of the definite original carrier transmitting power among the multi-carrier expansion method embodiment three of the present invention, this method specifically comprises:
Bound and the initial value and the load balancing thresholding of original carrier transmitting power are set, and wherein the upper limit of original carrier transmitting power is less than the transmitting power of original carrier;
The load balancing value can be calculated according in two kinds of situations any: the first, at first during the calculated load equilibrium value, according to the initial value of the transmitting power of dilatation carrier wave and the initial value calculated load equilibrium value of original carrier transmitting power; The second, when the transmitting power of dilatation carrier wave changes, calculate the load balancing value according to the transmitting power of the dilatation carrier wave after changing and the transmitting power of original carrier;
If the transmitting power that above-mentioned definite this transmitting power is the dilatation carrier wave can have adjustment for the transmitting power of dilatation carrier wave, then the transmitting power after the adjusted is the transmitting power of dilatation carrier wave, if the transmitting power of dilatation carrier wave is not adjusted, then unadjusted transmitting power is the transmitting power of dilatation carrier wave;
The transmitting power of step 3035, minimizing original carrier turns to step 3032;
Step 3036, judge whether to surpass the upper limit of original carrier transmitting power, if do not surpass the upper limit of original carrier transmitting power, then execution in step 3037, otherwise, determine that this transmitting power is the transmitting power of original carrier;
The transmitting power of step 3037, increase original carrier turns to step 3032.
Pass through aforesaid operations, making original carrier carry out self adaptation on the basis of initial setting up regulates, if the transmitting power of original carrier is provided with too smallly, make the number of users of the sub-district that this transmitting power covers not satisfy the requirement of load balancing, the transmitting power that then need increase original carrier can be carried the preset user number until original carrier and dilatation carrier wave; If it is too much that original carrier is provided with, the dilatation carrier wave produce to be disturbed, the transmitting power that then need reduce the dilatation carrier wave is not until producing interference to original carrier, and makes original carrier and dilatation carrier wave according to the ratio carrying number of users that pre-sets.
Said method has been realized multi-carrier expansion cell edge interference mitigation, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput.
As shown in Figure 8, be the flow chart of multi-carrier expansion method embodiment four of the present invention, this method specifically may further comprise the steps:
Constant for the coverage that makes the first base station original carrier, need to keep the transmitting power of the first base station original carrier constant, in order to reduce of the interference of dilatation carrier wave, reduce the transmitting power of follow-up dilatation carrier wave with respect to original carrier to original carrier;
Terminal assignments will far be stood on original carrier in step 402, first base station, and the terminal assignments of closely standing is on the dilatation carrier wave;
Above-mentioned nearly station terminal and station far away terminal are to divide according to the call quality indication information of terminal;
Step 403, determine the transmitting power of the original carrier of second base station according to the second base station load balancing thresholding, interference and service deterioration thresholding, make the transmitting power of original carrier of second base station less than the transmitting power of the original carrier of first base station, keep the transmitting power of the second base station dilatation carrier wave identical with the transmitting power of the original carrier of first base station;
In order to reduce the interference between base station and the base station better, can realize by using different carrier waves between adjacent base station, thereby can reduce the transmitting power of the original carrier of second base station adjacent with first base station;
Terminal assignments will far be stood on the dilatation carrier wave in step 404, second base station, and the terminal assignments of closely standing is on original carrier.
Terminal assignments will far be stood on original carrier in second base station, and the terminal assignments of closely standing is on the dilatation carrier wave, and above-mentioned nearly station terminal and station far away terminal are to divide according to the call quality indication information of terminal.
Wherein, in the above-mentioned steps 401, determine that according to the first base station load balancing thresholding, interference and service deterioration thresholding the method for the transmitting power of dilatation carrier wave can adopt the method for definite dilatation carrier transmit power of multi-carrier expansion method embodiment two of the present invention.
In addition, as shown in Figure 9, be the method flow diagram of the definite original carrier transmitting power among the multi-carrier expansion method embodiment four of the present invention, this method specifically comprises:
Bound and initial value, load balancing thresholding, interference and the service deterioration thresholding of original carrier transmitting power are set, and wherein the upper limit of original carrier transmitting power is less than the transmitting power of original carrier;
The load balancing value can be calculated according in two kinds of situations any: the first, at first during the calculated load equilibrium value, according to the initial value of the transmitting power of dilatation carrier wave and the initial value calculated load equilibrium value of original carrier transmitting power; The second, when the transmitting power of dilatation carrier wave changes, calculate the load balancing value according to the transmitting power of the dilatation carrier wave after changing and the transmitting power of original carrier;
Go out to disturb and service deterioration value according to information calculations such as channel quality (CQI) information of terminal feedback and carrier loads, because information such as channel quality (CQI) information of terminal feedback and carrier load can change, and also can change so disturb and serve the deterioration value;
If the transmitting power that above-mentioned definite this transmitting power is the dilatation carrier wave can have adjustment for the transmitting power of dilatation carrier wave, then the transmitting power after the adjusted is the transmitting power of dilatation carrier wave, if the transmitting power of dilatation carrier wave is not adjusted, then unadjusted transmitting power is the transmitting power of dilatation carrier wave;
The transmitting power of step 4037, minimizing original carrier turns to step 4032;
The transmitting power of step 4039, increase original carrier turns to step 4032.
Pass through aforesaid operations, making original carrier carry out self adaptation on the basis of initial setting up regulates, if the transmitting power of original carrier is provided with too smallly, make the number of users of the sub-district that this transmitting power covers not satisfy the requirement of load balancing, the transmitting power that then need increase the dilatation carrier wave is carried the number of users of sub-district according to the ratio that sets in advance until original carrier and dilatation carrier wave, after the transmitting power of dilatation carrier wave satisfies the requirement of load balancing, also otherwise surpass to disturb and the thresholding of service deterioration, if the dilatation carrier wave produces original carrier and disturbs, the transmitting power that then need reduce the dilatation carrier wave is until original carrier is not produced interference; As shown in figure 10, be that the original carrier of multi-carrier expansion method embodiment four of the present invention and dilatation carrier wave cover contractive effect figure, the transmitting power of 1 expression original carrier wherein, the transmitting power of 2 expression dilatation carrier waves.
Said method has been realized multi-carrier expansion cell edge interference mitigation preferably, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput, simultaneously to original carrier influence minimum, load balancing is better, and has reduced operation cost effectively.
As shown in figure 11, structural representation for multi-carrier expansion device embodiment one of the present invention, this device specifically comprises: first module 11, be used for determining the transmitting power of dilatation carrier wave according to the load balancing thresholding, and make the transmitting power of dilatation carrier wave less than the transmitting power of original carrier; First distribution modulator 12 is used for the terminal assignments of far standing in original carrier, and the terminal assignments of closely standing is on the dilatation carrier wave, and wherein said nearly station terminal and station far away terminal are divided according to the call quality indication information of terminal.
Wherein, first module 11 comprises again: first reduces module 111, is used for surpassing the lower limit of dilatation carrier transmit power when the overload transmitting power of balanced thresholding and dilatation carrier wave of load balancing value, then reduces the transmitting power of dilatation carrier wave; First increases module 112, is used for surpassing the upper limit of dilatation carrier transmit power when the do not overload transmitting power of balanced thresholding and dilatation carrier wave of load balancing value, then increases the transmitting power of dilatation carrier wave; First determination module 113, be used for surpassing the lower limit of dilatation carrier transmit power when the overload transmitting power of balanced thresholding and dilatation carrier wave of load balancing value, or surpass the upper limit of dilatation carrier transmit power when the do not overload emission merit of balanced thresholding and dilatation carrier wave of load balancing value, determine that then this transmitting power is the transmitting power of dilatation carrier wave.
Said apparatus keeps the transmitting power of original carrier constant by first module, reduce the transmitting power of dilatation carrier wave with respect to original carrier, thereby reduce of the interference of dilatation carrier wave to original carrier, utilize first distribution modulator far to stand terminal assignments on original carrier then, nearly station terminal assignments on the dilatation carrier wave, thereby realized load balancing preferably.
Said apparatus has been realized multi-carrier expansion cell edge interference mitigation preferably, has been promoted the performance of carrier wave.
As shown in figure 12, structural representation for multi-carrier expansion device embodiment two of the present invention, first module of multi-carrier expansion device embodiment one of the present invention can be specially second module 21, be used for determining the transmitting power of dilatation carrier wave, make the transmitting power of dilatation carrier wave less than the transmitting power of original carrier according to load balancing thresholding, interference and service deterioration thresholding; Wherein, second module 21 specifically comprises: second reduces module 211, be used for when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value and surpass interference and service deterioration thresholding, and, reduce the transmitting power of dilatation carrier wave if the transmitting power of dilatation carrier wave does not surpass the lower limit of dilatation carrier transmit power; Second determination module 212, be used for when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value and surpass interference and service deterioration thresholding, and the transmitting power of dilatation carrier wave surpasses the lower limit of dilatation carrier transmit power, or when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value to surpass interference and service deterioration thresholding, determine that this transmitting power is the transmitting power of dilatation carrier wave.
Said apparatus keeps the transmitting power of original carrier constant by second module, the transmitting power of original carrier reduces the transmitting power of dilatation carrier wave relatively, thereby reduce of the interference of dilatation carrier wave to original carrier, utilize first distribution modulator far to stand terminal assignments on original carrier then, nearly station terminal assignments on the dilatation carrier wave, thereby realized load balancing preferably.
Said apparatus has been realized multi-carrier expansion cell edge interference mitigation preferably, has been promoted the performance of carrier wave, has improved carrier cell edge customer throughput, simultaneously to original carrier influence minimum, load balancing is better, and has reduced operation cost effectively.
As shown in figure 13, structural representation for multi-carrier expansion device embodiment three of the present invention, this device specifically comprises: first module 11, be used for determining the transmitting power of dilatation carrier wave, make the transmitting power of the transmitting power of the base station dilatation carrier wave of winning less than the first base station original carrier according to the first base station load balancing thresholding; First distribution modulator 12 is used for station far away terminal assignments with first base station in original carrier, and the nearly station terminal assignments of first base station is on the dilatation carrier wave, and the nearly station terminal of described first base station and station far away terminal are divided according to the call quality indication information of terminal; Three module 31, be used for determining the transmitting power of the original carrier of second base station according to the second base station load balancing thresholding, make the transmitting power of original carrier of second base station less than the transmitting power of the original carrier of first base station, keep the transmitting power of the second base station dilatation carrier wave identical with the transmitting power of the original carrier of first base station; The 3rd distribution modulator 32 is used for station far away terminal assignments with second base station at the dilatation carrier wave, and the nearly station terminal assignments of second base station is on original carrier, and the nearly station terminal of described second base station and station far away terminal are divided according to the call quality indication information of terminal.
Wherein, three module 31 comprises again: the 3rd reduces module 311, is used for surpassing the lower limit of original carrier transmitting power when the overload transmitting power of balanced thresholding and original carrier of load balancing value, reduces the transmitting power of original carrier; The 3rd increases module 312, is used for surpassing the upper limit of dilatation carrier transmit power when the do not overload transmitting power of balanced thresholding and dilatation carrier wave of load balancing value, then increases the transmitting power of dilatation carrier wave; The 3rd determination module 313, be used for surpassing the lower limit of original carrier transmitting power when the overload transmitting power of balanced thresholding and original carrier of load balancing value, or surpass the upper limit of dilatation carrier transmit power when the do not overload emission merit of balanced thresholding and dilatation carrier wave of load balancing value, determine that this transmitting power is the transmitting power of original carrier.
Said apparatus keeps the transmitting power of the first base station original carrier constant by first module, reduce the transmitting power of dilatation carrier wave with respect to the transmitting power of original carrier, thereby reduce in first base station dilatation carrier wave to the interference of original carrier, and utilize first distribution modulator far to stand terminal assignments on original carrier, nearly station terminal assignments has realized the network load equilibrium preferably on the dilatation carrier wave; Simultaneously, said apparatus reduces the transmitting power of the second base station original carrier again effectively by three module, reduce the interference between adjacent base station, keep the transmitting power of the second base station dilatation carrier wave identical simultaneously with the transmitting power of the original carrier of first base station, reduce the interference between carrier waves in base station, and utilize the 3rd distribution modulator far to stand terminal assignments on original carrier, the terminal assignments of closely standing on the dilatation carrier wave, thereby realized the network load equilibrium better.
Said apparatus, the alleviation of disturbing with inside of base station multi-carrier expansion cell edge between base station and the base station, the performance that has promoted carrier wave have been realized preferably, the up-downgoing capacity and the Cell Edge User throughput of carrier wave have been improved, simultaneously to original carrier influence minimum, load balancing is better, and has reduced operation cost effectively.
As shown in figure 14, structural representation for multi-carrier expansion device embodiment four of the present invention, the difference of this device and multi-carrier expansion device embodiment three of the present invention is: the three module among the multi-carrier expansion device embodiment three can be four module 41, first module can be second module among the multi-carrier expansion device embodiment two of the present invention, wherein, four module 41 specifically comprises: the 4th reduces module 411, be used for when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value and surpass interference and service deterioration thresholding, and, reduce the transmitting power of original carrier if the transmitting power of original carrier does not surpass the lower limit of original carrier transmitting power; The 4th determination module 412, be used for when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value and surpass interference and service deterioration thresholding, and the transmitting power of original carrier surpasses the lower limit of original carrier transmitting power, or when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value to surpass interference and service deterioration thresholding, determine that this transmitting power is the transmitting power of original carrier.
Said apparatus keeps the transmitting power of the first base station original carrier constant by second module, reduce the transmitting power of dilatation carrier wave with respect to original carrier, thereby reduce in first base station dilatation carrier wave to the interference of original carrier, and utilize first distribution modulator far to stand terminal assignments on original carrier, nearly station terminal assignments on the dilatation carrier wave, thereby realized load balancing preferably; Simultaneously, said apparatus reduces the transmitting power of the second base station original carrier again effectively by four module, reduce the interference between adjacent base station, keep the transmitting power of the second base station dilatation carrier wave identical simultaneously with the transmitting power of the first base station original carrier, reduce the interference between carrier waves in base station, utilize the 3rd distribution modulator far to stand terminal assignments on original carrier then, the terminal assignments of closely standing on the dilatation carrier wave, thereby realized the network load equilibrium better.
Said apparatus, the alleviation of disturbing with inside of base station multi-carrier expansion cell edge between base station and the base station, the performance that has promoted carrier wave have been realized preferably, the up-downgoing capacity and the Cell Edge User throughput of carrier wave have been improved, simultaneously to original carrier influence minimum, load balancing is better, and has reduced operation cost effectively.
On behalf of each step, " step " speech that uses in the specification of the present invention in addition, have ordinal relation.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (22)
1. multi-carrier expansion method is characterized in that comprising:
Determine the transmitting power of dilatation carrier wave according to the load balancing thresholding, make the transmitting power of dilatation carrier wave less than the transmitting power of original carrier;
To far stand terminal assignments on original carrier, the terminal assignments of closely standing is on the dilatation carrier wave, and described nearly station terminal and station far away terminal are divided according to the call quality indication information of terminal.
2. multi-carrier expansion method according to claim 1 is characterized in that describedly determining that according to the load balancing thresholding transmitting power of dilatation carrier wave specifically comprises:
The transmitting power of balanced thresholding and dilatation carrier wave does not surpass the lower limit of dilatation carrier transmit power if the load balancing value overloads, and then reduces the transmitting power of dilatation carrier wave;
The transmitting power of balanced thresholding and dilatation carrier wave surpasses the lower limit of dilatation carrier transmit power if the load balancing value overloads, and determines that then this transmitting power is the transmitting power of dilatation carrier wave.
3. multi-carrier expansion method according to claim 1 is characterized in that describedly determining that according to the load balancing thresholding transmitting power of dilatation carrier wave specifically comprises:
The transmitting power of balanced thresholding and dilatation carrier wave does not surpass the upper limit of dilatation carrier transmit power if the load balancing value overloads, and then increases the transmitting power of dilatation carrier wave;
The emission merit of balanced thresholding and dilatation carrier wave does not surpass the upper limit of dilatation carrier transmit power if the load balancing value overloads, and determines that then this transmitting power is the transmitting power of dilatation carrier wave.
4. according to claim 2 or 3 described multi-carrier expansion methods, it is characterized in that described load balancing value specifically calculates according to the user profile that original carrier and dilatation carrier wave are carried.
5. multi-carrier expansion method according to claim 1 is characterized in that describedly determining that according to the load balancing thresholding transmitting power of dilatation carrier wave also comprises: according to disturbing and service deterioration thresholding is determined the transmitting power of dilatation carrier wave.
6. multi-carrier expansion method according to claim 5 is characterized in that determining according to the load balancing thresholding transmitting power of dilatation carrier wave, and according to disturbing and service deterioration thresholding determines that the transmitting power of dilatation carrier wave specifically comprises:
If the load balancing value balanced thresholding that overloads, somely disturb and serve the deterioration value and surpass and disturb and service deterioration thresholding, and, then reduce the transmitting power of dilatation carrier wave if the transmitting power of dilatation carrier wave surpasses the lower limit of dilatation carrier transmit power;
The balanced thresholding if the load balancing value overloads, somely disturb and serve that the deterioration value surpass to be disturbed and service deterioration thresholding, and, determine that then this transmitting power is the transmitting power of dilatation carrier wave if the transmitting power of dilatation carrier wave surpasses the lower limit of dilatation carrier transmit power;
If the load balancing value balanced thresholding that overloads, somely disturb and serve the deterioration value and surpass and disturb and service deterioration thresholding, determine that then this transmitting power is the transmitting power of dilatation carrier wave.
7. multi-carrier expansion method according to claim 6 is characterized in that described interference and service deterioration value specifically go out according to the call quality indication information and the carrier load information calculations of terminal feedback.
8. multi-carrier expansion method is characterized in that comprising:
Determine the transmitting power of dilatation carrier wave to make the transmitting power of the transmitting power of the base station dilatation carrier wave of winning according to the first base station load balancing thresholding less than the first base station original carrier;
Terminal assignments will far be stood on original carrier in first base station, and the terminal assignments of closely standing is on the dilatation carrier wave, and the nearly station terminal of described first base station and station far away terminal are divided according to the call quality indication information of terminal;
Determine the transmitting power of the original carrier of second base station according to the second base station load balancing thresholding, make the transmitting power of original carrier of second base station less than the transmitting power of the original carrier of first base station, keep the transmitting power of the second base station dilatation carrier wave identical with the transmitting power of the original carrier of first base station;
Terminal assignments will far be stood on the dilatation carrier wave in second base station, and the terminal assignments of closely standing is on original carrier, and the nearly station terminal of described second base station and station far away terminal are divided according to the call quality indication information of terminal.
9. multi-carrier expansion method according to claim 8 is characterized in that describedly determining that according to the load balancing thresholding transmitting power of the original carrier of second base station specifically comprises:
The transmitting power of balanced thresholding and original carrier does not surpass the lower limit of original carrier transmitting power if the load balancing value overloads, and then reduces the transmitting power of original carrier;
The transmitting power of balanced thresholding and original carrier surpasses the lower limit of original carrier transmitting power if the load balancing value overloads, and determines that then this transmitting power is the transmitting power of original carrier.
10. multi-carrier expansion method according to claim 8 is characterized in that describedly determining that according to the load balancing thresholding transmitting power of the original carrier of second base station specifically comprises:
The transmitting power of balanced thresholding and dilatation carrier wave does not surpass the upper limit of dilatation carrier transmit power if the load balancing value overloads, and then increases the transmitting power of dilatation carrier wave;
The emission merit of balanced thresholding and dilatation carrier wave does not surpass the upper limit of dilatation carrier transmit power if the load balancing value overloads, and determines that then this transmitting power is the transmitting power of dilatation carrier wave.
11., it is characterized in that described load balancing value specifically calculates according to the user profile that original carrier and dilatation carrier wave are carried according to claim 9 or 10 described multi-carrier expansion methods.
12., it is characterized in that describedly determining that according to the load balancing thresholding transmitting power of original carrier also comprises: according to disturbing and service deterioration thresholding is determined the transmitting power of original carrier according to claim 9 or 10 described multi-carrier expansion methods.
13. multi-carrier expansion method according to claim 12 is characterized in that determining according to the load balancing thresholding transmitting power of original carrier, and according to disturbing and service deterioration thresholding determines that the transmitting power of original carrier specifically comprises:
If the load balancing value balanced thresholding that overloads, somely disturb and serve the deterioration value and surpass and disturb and service deterioration thresholding, and, then reduce the transmitting power of original carrier if the transmitting power of original carrier surpasses the lower limit of original carrier transmitting power;
The balanced thresholding if the load balancing value overloads, somely disturb and serve that the deterioration value surpass to be disturbed and service deterioration thresholding, and, determine that then this transmitting power is the transmitting power of original carrier if the transmitting power of original carrier surpasses the lower limit of original carrier transmitting power;
If the load balancing value balanced thresholding that overloads, somely disturb and serve the deterioration value and surpass and disturb and service deterioration thresholding, determine that then this transmitting power is the transmitting power of original carrier.
14. multi-carrier expansion method according to claim 13 is characterized in that described interference and service deterioration value specifically go out according to the call quality indication information and the carrier load information calculations of terminal feedback.
15. a multi-carrier expansion device is characterized in that comprising:
First module is used for determining according to the load balancing thresholding transmitting power of dilatation carrier wave, makes the transmitting power of dilatation carrier wave less than the transmitting power of original carrier;
First distribution modulator is used for the terminal assignments of far standing in original carrier, and the terminal assignments of closely standing is on the dilatation carrier wave, and wherein said nearly station terminal and station far away terminal are divided according to the call quality indication information of terminal.
16. multi-carrier expansion device according to claim 15 is characterized in that described first module specifically comprises:
First reduces module, is used for surpassing the lower limit of dilatation carrier transmit power when the overload transmitting power of balanced thresholding and dilatation carrier wave of load balancing value, then reduces the transmitting power of dilatation carrier wave;
First increases module, is used for surpassing the upper limit of dilatation carrier transmit power when the do not overload transmitting power of balanced thresholding and dilatation carrier wave of load balancing value, then increases the transmitting power of dilatation carrier wave;
First determination module, be used for surpassing the lower limit of dilatation carrier transmit power when the overload transmitting power of balanced thresholding and dilatation carrier wave of load balancing value, or surpass the upper limit of dilatation carrier transmit power when the do not overload emission merit of balanced thresholding and dilatation carrier wave of load balancing value, determine that then this transmitting power is the transmitting power of dilatation carrier wave.
17. according to claim 15 or 16 described multi-carrier expansion devices, it is characterized in that described first module is specially second module, be used for determining the transmitting power of dilatation carrier wave, make the transmitting power of dilatation carrier wave less than the transmitting power of original carrier according to load balancing thresholding, interference and service deterioration thresholding.
18. multi-carrier expansion device according to claim 17 is characterized in that described second module specifically comprises:
Second reduces module, be used for when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value to surpass interference and service deterioration thresholding, and if the transmitting power of dilatation carrier wave above the lower limit of dilatation carrier transmit power, reduces the transmitting power of dilatation carrier wave;
Second determination module, be used for when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value and surpass interference and service deterioration thresholding, and the transmitting power of dilatation carrier wave surpasses the lower limit of dilatation carrier transmit power, or when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value to surpass interference and service deterioration thresholding, determine that this transmitting power is the transmitting power of dilatation carrier wave.
19. a multi-carrier expansion device is characterized in that comprising:
First module is used for determining according to the first base station load balancing thresholding transmitting power of dilatation carrier wave, makes the transmitting power of the transmitting power of the base station dilatation carrier wave of winning less than the first base station original carrier;
First distribution modulator is used for station far away terminal assignments with first base station in original carrier, and the nearly station terminal assignments of first base station is on the dilatation carrier wave, and the nearly station terminal of described first base station and station far away terminal are divided according to the call quality indication information of terminal;
Three module, be used for determining the transmitting power of the original carrier of second base station according to the second base station load balancing thresholding, make the transmitting power of original carrier of second base station less than the transmitting power of the original carrier of first base station, keep the transmitting power of the second base station dilatation carrier wave identical with the transmitting power of the original carrier of first base station;
The 3rd distribution modulator is used for station far away terminal assignments with second base station at the dilatation carrier wave, and the nearly station terminal assignments of second base station is on original carrier, and the nearly station terminal of described second base station and station far away terminal are divided according to the call quality indication information of terminal.
20. multi-carrier expansion device according to claim 19 is characterized in that described three module specifically comprises:
The 3rd reduces module, is used for surpassing the lower limit of original carrier transmitting power when the overload transmitting power of balanced thresholding and original carrier of load balancing value, reduces the transmitting power of original carrier;
The 3rd increases module, is used for surpassing the upper limit of dilatation carrier transmit power when the do not overload transmitting power of balanced thresholding and dilatation carrier wave of load balancing value, then increases the transmitting power of dilatation carrier wave;
The 3rd determination module, be used for surpassing the lower limit of original carrier transmitting power when the overload transmitting power of balanced thresholding and original carrier of load balancing value, or surpass the upper limit of dilatation carrier transmit power when the do not overload emission merit of balanced thresholding and dilatation carrier wave of load balancing value, determine that this transmitting power is the transmitting power of original carrier.
21. according to claim 19 or 20 described multi-carrier expansion devices, it is characterized in that described three module is specially four module, be used for determining the transmitting power of the second base station original carrier according to load balancing thresholding and service deterioration thresholding, make the transmitting power of the second base station original carrier less than the transmitting power of the first base station original carrier, keep the transmitting power of the second base station dilatation carrier wave identical with the transmitting power of the first base station original carrier.
22. multi-carrier expansion device according to claim 21 is characterized in that described four module specifically comprises:
The 4th reduces module, be used for when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value to surpass interference and service deterioration thresholding, and if the transmitting power of original carrier above the lower limit of original carrier transmitting power, reduces the transmitting power of original carrier;
The 4th determination module, be used for when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value and surpass interference and service deterioration thresholding, and the transmitting power of original carrier surpasses the lower limit of original carrier transmitting power, or when the load balancing value balanced thresholding that overloads, disturb and serve the deterioration value to surpass interference and service deterioration thresholding, determine that this transmitting power is the transmitting power of original carrier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101795735A CN101179312A (en) | 2007-12-14 | 2007-12-14 | Multi-carrier expansion method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101795735A CN101179312A (en) | 2007-12-14 | 2007-12-14 | Multi-carrier expansion method and apparatus |
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| CN101179312A true CN101179312A (en) | 2008-05-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883397A (en) * | 2009-05-08 | 2010-11-10 | 大唐移动通信设备有限公司 | Load control method, system and device |
| CN105323783A (en) * | 2014-07-31 | 2016-02-10 | 中国移动通信集团公司 | Capacity expansion evaluation method and device for wireless communication system |
| CN110493794A (en) * | 2018-05-15 | 2019-11-22 | 中国移动通信集团湖北有限公司 | Base station expansion method, device, equipment and storage medium |
| CN115250486A (en) * | 2021-04-28 | 2022-10-28 | 中国移动通信集团四川有限公司 | Network capacity expansion method and device and electronic equipment |
-
2007
- 2007-12-14 CN CNA2007101795735A patent/CN101179312A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883397A (en) * | 2009-05-08 | 2010-11-10 | 大唐移动通信设备有限公司 | Load control method, system and device |
| CN101883397B (en) * | 2009-05-08 | 2014-11-05 | 电信科学技术研究院 | Load control method, system and device |
| CN105323783A (en) * | 2014-07-31 | 2016-02-10 | 中国移动通信集团公司 | Capacity expansion evaluation method and device for wireless communication system |
| CN105323783B (en) * | 2014-07-31 | 2019-06-25 | 中国移动通信集团公司 | The dilatation appraisal procedure and device of wireless communication system |
| CN110493794A (en) * | 2018-05-15 | 2019-11-22 | 中国移动通信集团湖北有限公司 | Base station expansion method, device, equipment and storage medium |
| CN110493794B (en) * | 2018-05-15 | 2022-04-01 | 中国移动通信集团湖北有限公司 | Base station capacity expansion method, device, equipment and storage medium |
| CN115250486A (en) * | 2021-04-28 | 2022-10-28 | 中国移动通信集团四川有限公司 | Network capacity expansion method and device and electronic equipment |
| CN115250486B (en) * | 2021-04-28 | 2024-06-11 | 中国移动通信集团四川有限公司 | Network capacity expansion method and device and electronic equipment |
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Application publication date: 20080514 |