CN101730239A - Method for distributing cell frequency resources and terminal channel quality indicated value feedback device - Google Patents
Method for distributing cell frequency resources and terminal channel quality indicated value feedback device Download PDFInfo
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- CN101730239A CN101730239A CN200810217070A CN200810217070A CN101730239A CN 101730239 A CN101730239 A CN 101730239A CN 200810217070 A CN200810217070 A CN 200810217070A CN 200810217070 A CN200810217070 A CN 200810217070A CN 101730239 A CN101730239 A CN 101730239A
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Abstract
The invention discloses a method for distributing cell frequency resources and a terminal channel quality indicated value feedback device. The distributing method comprises that: a, a base station sends an SLI value of each sub-band set acquired by dividing the cell frequency resources to all terminals in a cell; b, the terminals select sub-band sets of preset number according to the SLI value of each sub-band set respectively, and feed back the channel quality indicated values of the selected sub-band sets to the base station; and c, the base station distributes the frequency resources to each terminal according to the channel quality indicated values fed back by all the terminals. The terminal channel quality indicated value feedback device comprises a sub-band set selection module and a feedback module. The technical scheme of the invention implements reasonable distribution of the cell frequency resources.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of distribution method and terminal CQI (Channel Quality Information, channel quality indication) value feedback device of cell frequency resources.
Background technology
The reduction presence of intercell interference is an important goal of cellular system design to the influence of performance in wireless communication systems.If presence of intercell interference is serious, will greatly reduces power system capacity, the particularly transmittability of cell edge terminal, thereby have influence on covering power and terminal use's impression of system.
In order to overcome presence of intercell interference, Intel Company has proposed a kind of AFR based on price mechanism (Adaptive Frequency Reuse, adaptive frequency reuse) scheme, by adjusting the price (cost) that each reuses subband in the set (Reuse Set), give terminal with the different sub-band frequency resource allocation, thereby reduce presence of intercell interference intensity.The cardinal principle of this scheme is: at first, all available frequency resources are divided into 7 subband set close
Wherein, W
1, W
2, W
3Frequency re-use factor be 3, i.e. W
1, W
2, W
3In frequency resource allocation give sub-district in three neighbor cells, and this frequency resource can not be used in other two sub-districts or need to adopt the method that limits its transmitting power to use this frequency resource, claims W
1, W
2, W
3Reuse set for Reuse3; W
12, W
23, W
13Frequency re-use factor be 3/2, i.e. W
12, W
23, W
13In frequency resource allocation give two sub-districts in three neighbor cells, and the 3rd sub-district can not be used this frequency resource or be needed to adopt the method that limits its transmitting power to use this frequency resource, claims W
12, W
23, W
13Reuse set for Reuse3/2; W
123Frequency re-use factor is 1, and promptly three neighbor cells can use this frequency resource by without stint, claims W
123Reuse set for Reuse1.Simultaneously, cost, i.e. a C=[C are distributed for each sets of subbands in the base station
1, C
2, C
3, C
12, C
23, C
13, C
123], and satisfy condition:
C
12+ C
23+ C
13=3, C
123=1.
Fig. 1 is the schematic diagram of division of three neighbor cells (sub-district 1, sub-district 2 and sub-district 3) frequency resource and power division, and available frequency resources is divided into three subband set and closes W
1, W
2, W
3, frequency duplex factor as one is 3, i.e. Reuse3.High power (P of each cell selecting
1) sets of subbands, two other sets of subbands adopts low-power (P
2), and guarantee neighbor cell high power sets of subbands mutually orthogonal.In the process of dividing frequency resource, at first, base station each terminal in the sub-district is broadcasted the cost of each sets of subbands; Then, each terminal is predicted the SE (Spectral Efficiency, spectrum efficiency) of each sets of subbands by channel estimating, afterwards by formula nSE
i=SE
i/ Cost
i(i=1,2,3) calculate the weighting SE (nSE) of each sets of subbands, and the CQI value that M (1≤M≤3) subband set of result of calculation maximum is closed feeds back to the base station; At last, the base station is each terminal distribution frequency resource according to the CQI value of all terminal feedbacks, and when needing self adaptation to adjust the cost value of each sets of subbands, finishes corresponding adjustment and make system reach the state of an optimum, when default cost broadcast cycle arrives, repeat aforesaid operations.
Fig. 2 is a simulation result schematic diagram of selecting the feedback sets of subbands according to the cost of sets of subbands, and it is divided and the power division situation based on cell frequency resources shown in Figure 1,
Represent lower powered sets of subbands, " zero " represents high-power sets of subbands, and abscissa is represented the SINR (signal to interference noise ratio, Signal to Interference plus Noise Ratio) of cell terminal, and ordinate is represented low power sub-bands set cost value.As can be seen from Figure 2, continuous reduction along with low power sub-bands set cost value, the higher terminal (being called center terminal) of most of SINR is selected the CQI value of the lower powered sets of subbands of feedback Reuse3, the terminal (being called edge termination) that most of SINR is lower is selected the CQI value of the high-power sets of subbands of feedback Reuse3, but some edge terminations are selected the CQI value of the lower powered sets of subbands of feedback Reuse3, and some center terminal are selected the CQI value of the high-power sets of subbands of feedback Reuse3.This feedback result is irrational to the edge termination of the CQI value of feeding back lower powered sets of subbands, the base station is the further channel quality that worsens these edge terminations of terminal distribution frequency resource meeting according to this feedback result, and this situation can not improve along with the variation of sets of subbands cost value.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of distribution method and terminal CQI value feedback device of cell frequency resources, has realized the reasonable distribution of cell frequency resources.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of distribution method of cell frequency resources may further comprise the steps:
A, base station all terminals in the sub-district send cell frequency resources and divide the SLI of each sets of subbands that obtains (Sub-band Level Indication, rank indication) value;
B, each terminal are selected the sets of subbands of predetermined number respectively according to the SLI value of each sets of subbands, the CQI value of selected sets of subbands is fed back to described base station;
C, described base station are each terminal distribution frequency resource according to the CQI value of all terminal feedbacks.
In the such scheme, among the described step b, each terminal is selected the sets of subbands of predetermined number respectively by following steps:
B1, divide and the power division situation, obtain the SINR of each sets of subbands by channel estimating according to cell frequency resources;
B2, respectively with the SINR of each sets of subbands and SLI value divided by the weighting SINR that obtains each sets of subbands;
The weighting SINR of b3, each sets of subbands of comparison, and select the sets of subbands of predetermined number according to comparative result, the weighting SINR of selected sets of subbands is not less than the weighting SINR that does not select sets of subbands.
In the such scheme, described cell frequency resources is divided and the power division situation is that described base station sends to each terminal in advance.
In the such scheme, described base station sends the SLI value of each sets of subbands, the division of described cell frequency resources and power division situation by clean culture, broadcasting or multicast mode.
In the such scheme, after the described step c, further comprising the steps of d:
D, described base station need to judge whether self adaptation to adjust the SLI value of each sets of subbands, if need, finish the adjustment of SLI value, otherwise it are constant to keep existing SLI value.
In the such scheme, in the described steps d, described base station judges whether that according to the loading condition of the interference strength of the spectrum efficiency of the resource tensity of sets of subbands, sets of subbands, sets of subbands or sub-district the needs self adaptation adjusts the SLI value of each sets of subbands.
In the such scheme, after the described steps d, after the default SLI value transmission cycle of described base station waits reaches, get back to described step a.
In the such scheme, the initial value of the SLI value of each sets of subbands is that described base station sets in advance.
A kind of terminal CQI value feedback device comprises:
Sets of subbands is selected module, is used for dividing according to cell frequency resources the sets of subbands of the SLI value selection predetermined number of each sets of subbands that obtains;
Feedback module is used for selecting the CQI value of the sets of subbands of module selection to feed back to described base station described sets of subbands.
In the such scheme, described sets of subbands is selected module to comprise SINR acquisition module, weighting SINR computing module and is selected module; Described SINR acquisition module is used for dividing and the power division situation according to cell frequency resources, obtains the SINR of each sets of subbands by channel estimating; Described weighting SINR computing module is used for the weighting SINR according to the SINR of each sets of subbands and each sets of subbands of SLI value calculating; Described selection module is used for the weighting SINR of each sets of subbands of comparison, and selects the sets of subbands of predetermined number according to comparative result, and the weighting SINR of selected sets of subbands is not less than the weighting SINR that does not select sets of subbands.
Beneficial effect of the present invention mainly shows: terminal CQI value feedback device provided by the invention can be used for the distribution method of cell frequency resources, in this distribution method, terminal is selected sets of subbands according to the SLI value of each sets of subbands, the base station is the terminal distribution frequency resource according to the CQI value of the selected sets of subbands of terminal feedback, and adjust the SLI value of each sets of subbands according to actual conditions, thereby realized the reasonable distribution of cell frequency resources, under the prerequisite that guarantees center of housing estate terminal communication quality, effectively improved the communication quality of cell edge terminal.
Description of drawings
Fig. 1 is the schematic diagram of three adjacent cell frequencies resource division and power division;
Fig. 2 is the existing simulation result schematic diagram of selecting the feedback sets of subbands according to the cost of sets of subbands;
Fig. 3 is the allocation flow figure of cell frequency resources of the present invention;
Fig. 4 is a terminal CQI value feedback device structural representation of the present invention;
Fig. 5 is the schematic diagram of embodiment of the invention medium frequency resource division and power division;
Fig. 6 selects the simulation result schematic diagram of feedback sets of subbands according to the SLI of sets of subbands for the present invention.
Embodiment
Fig. 1, Fig. 2 are described in background technology, repeat no more herein, and the invention will be further described below in conjunction with other accompanying drawing.
With reference to Fig. 3, a kind of distribution method of cell frequency resources may further comprise the steps:
S301: base station all terminals in the sub-district send the SLI value that cell frequency resources is divided each sets of subbands that obtains; The mode that sends can be clean culture, broadcasting or multicast mode, and the initial value of the SLI value of each sets of subbands is that the base station sets in advance;
S302: each terminal is selected the sets of subbands of predetermined number respectively according to the SLI value of each sets of subbands, and the CQI value of selected sets of subbands is fed back to the base station; Wherein,
Each terminal is selected the sets of subbands of predetermined number respectively by following steps:
1, divides and the power division situation according to cell frequency resources, obtain the SINR of each sets of subbands by channel estimating; Wherein, cell frequency resources is divided and the power division situation is that the base station sends to each terminal in advance, and the mode of transmission can be clean culture, broadcasting or multicast mode;
2, respectively with the SINR of each sets of subbands and SLI value divided by the weighting SINR that obtains each sets of subbands; Wherein, SINR adopts logarithmic form to represent;
3, the weighting SINR of each sets of subbands relatively, and select the sets of subbands of predetermined number according to comparative result, wherein, the weighting SINR of selected sets of subbands is not less than the weighting SINR that does not select sets of subbands;
And the CQI value of selected sets of subbands is the SINR of selected sets of subbands;
S303: the base station is each terminal distribution frequency resource according to the CQI value of all terminal feedbacks;
S304: the base station need to judge whether self adaptation to adjust the SLI value of each sets of subbands, if need, enters S305; Otherwise, enter S306; Wherein, the base station can judge whether that the needs self adaptation adjusts the SLI value of each sets of subbands according to the loading condition of the interference strength of the spectrum efficiency of the resource tensity of sets of subbands, sets of subbands, sets of subbands or sub-district;
S305: the adjustment of SLI value is finished in the base station, and enters S307;
S306: the existing SLI value of base station maintain is constant, and enters S307;
S307: after the default SLI value transmission cycle of base station waits reaches, get back to S301 cycling performance period.
With reference to Fig. 4, a kind of terminal CQI value feedback device comprises:
Sets of subbands is selected module, is used for dividing according to cell frequency resources the sets of subbands of the SLI value selection predetermined number of each sets of subbands that obtains;
Feedback module is used for selecting the CQI value of the sets of subbands of module selection to feed back to described base station sets of subbands.
Wherein, sets of subbands selects module specifically to comprise:
The SINR acquisition module is used for dividing and the power division situation according to cell frequency resources, obtains the SINR of each sets of subbands by channel estimating;
Weighting SINR computing module is used for the weighting SINR that calculates each sets of subbands according to the SINR and the SLI value of each sets of subbands;
Select module, be used for the weighting SINR of each sets of subbands of comparison, and select the sets of subbands of predetermined number according to comparative result, wherein, the weighting SINR of selected sets of subbands is not less than the weighting SINR that does not select sets of subbands.
Be that example is further described the present invention with the sub-district 1 in the wireless communication system with frequency resource division shown in Figure 5 and power division situation below.
This system adopts the AFR technology, and the frequency resource of adjacent sub-district, three sub-districts 1, sub-district 2, sub-district 3 is divided into Reuse1 and Reuse3 two frequency sets, wherein [W
1, W
2, W
3] belong to Reuse3 set, W
4Belong to the Reuse1 set.[W in the sub-district 1
1, W
2, W
3, W
4] transmitting power be [P
High, P
Low, P
Low, P
Reuse1], [W in the sub-district 2
1, W
2, W
3, W
4] transmitting power be [P
Low, P
High, P
Low, P
Reuse1], [W in the sub-district 3
1, W
2, W
3, W
4] transmitting power be [P
Low, P
Low, P
High, P
Reuse1], and the P that satisfies condition
High＞p
Reusel＞P
LowSub-district 1 comprises two terminals, the SS2 that is positioned at the SS1 of cell edge and is positioned at center of housing estate, and the frequency resource of sub-district 1 is divided in the base station and the power division situation sends to SS1 and SS2 by broadcast channel in advance.In addition, the base station has set in advance [W
1, W
2, W
3, W
4] the SLI value, i.e. [SLI
1, SLI
2, SLI
3, SLI
4].Herein, base station selection sets of subbands W
4SLI value SLI
4Be reference value, SLI
4=1, the SLI value of other sets of subbands is with reference to SLI
4, and the SLI value of all sets of subbands satisfies condition in the Reuse3 set
The SLI value of the sets of subbands of equal transmit power is identical in the Reuse3 set, and promptly the base station is with the SLI value [SLI of each sets of subbands
1, SLI
2, SLI
3, SLI
4] be initialized as [1,1,1,1].
The assigning process of sub-district 1 frequency resource is as follows:
1, the base station is to SS1 and SS2 broadcasting [SLI
1, SLI
2, SLI
3, SLI
4] value; Broadcasting this moment [SLI
1, SLI
2, SLI
3, SLI
4] initial value [1,1,1,1];
2, SS1 obtains [W by channel estimating
1, W
2, W
3, W
4] SINR be [4Db, 1dB, 1dB, 2dB], and calculate [W
1, W
2, W
3, W
4] weighting SINR be [4,1,1,2], predetermined number is 1, then SS1 selects the sets of subbands W of weighting SINR maximum
1, with its CQI value, promptly its SINR feeds back to the base station; Similarly, SS2 obtains [W by channel estimating
1, W
2, W
3, W
4] SINR be [11dB, 8dB, 8dB, 9dB], and calculate [W
1, W
2, W
3, W
4] weighting SINR be [11,8,8,9], then SS2 selects the sets of subbands W of weighting SINR maximum
1, with its CQI value, promptly its SINR feeds back to the base station;
3, the base station is SS1 and SS2 allocated subbands set W according to the CQI value of SS1 and SS2 feedback
1Frequency resource;
4, the base station need to judge whether self adaptation adjustment [SLI
1, SLI
2, SLI
3, SLI
4], if need, finish corresponding adjustment, otherwise it is constant to maintain the statusquo; The base station can judge whether needs self adaptation adjustment [SLI according to the resource tensity of sets of subbands, the spectrum efficiency of sets of subbands, the interference strength of sets of subbands or the loading condition of sub-district
1, SLI
2, SLI
3, SLI
4], herein, the base station judges whether needs self adaptation adjustment [SLI according to the loading condition of sub-district
1, SLI
2, SLI
3, SLI
4]:
(1), when system load is light, sets of subbands W
1Enough SS1 of frequency resource and SS2 use, self adaptation adjustment [W is determined need not in the base station
1, W
2, W
3, W
4] the SIL value, keep existing [SLI
1, SLI
2, SLI
3, SLI
4] constant;
(2), when system load is heavier, sets of subbands W
1Not enough SS1 of frequency resource and SS2 use, promptly current frequency resource allocation mode is unreasonable, self adaptation adjustment [SLI need to be determined in the base station
1, SLI
2, SLI
3, SLI
4], then improve SLI
1Value, corresponding reduction SLI
2, SLI
3Value, with [SLI
1, SLI
2, SLI
3, SLI
4] be adjusted into [1.4,0.8,0.8,1];
5, after the default SLI value broadcast cycle of base station waits reaches, once more to SS1 and SS2 broadcasting [SLI
1, SLI
2, SLI
3, SLI
4] value realize cycling; When system load is light, [the SLI for remaining unchanged of base station broadcast
1, SLI
2, SLI
3, SLI
4] initial value; When system load is heavier, base station broadcast be [SLI
1, SLI
2, SLI
3, SLI
4] adjusted value, i.e. [1.4,0.8,0.8,1];
After this operation of SS1, SS2 and base station and aforementioned operation are similar, are example with the heavier situation of system load, if SS1 obtains [W by channel estimating
1, W
2, W
3, W
4] SINR still be [4dB, 1dB, 1dB, 2dB], SS2 obtains [W by channel estimating
1, W
2, W
3, W
4] SINR be [11dB, 8dB, 8dB, 9dB], then SS1 calculates [W
1, W
2, W
3, W
4] weighting SINR be [2.86,1.25,1.25,2], SS2 calculates [W
1, W
2, W
3, W
4] weighting SINR be [7.86,10,10,9], then SS1 selects the sets of subbands W of weighting SINR maximum
1, with its CQI value, promptly its SINR feeds back to the base station, and SS2 selects the sets of subbands W of weighting SINR maximum
2, with its CQI value, promptly its SINR feeds back to the base station; The base station is SS1 allocated subbands set W according to the CQI value of SS1 and SS2 feedback
1Frequency resource, be SS2 allocated subbands set W
2Frequency resource; At this moment, W
1The enough SS1 of frequency resource use and W
2The enough SS2 of frequency resource use, self adaptation adjustment [W is determined need not in the base station
1, W
2, W
3, W
4] the SLI value, keep existing [SLI
1, SLI
2, SLI
3, SLI
4] constant.After SLI value broadcast cycle reached, the base station was again to SS1 and SS2 broadcasting [SLI
1, SLI
2, SLI
3, SLI
4] value and begin follow-up operation.
From foregoing description as can be seen, after the base station is received the CQI value of SS1 and SS2 feedback for the second time, when resource allocation with W
1Frequency resource allocation give SS1, with W
2Frequency resource allocation give SS2, though SS2 does not obtain the best W of channel quality
1Frequency resource, but SS2 is positioned at center of housing estate, the presence of intercell interference that is subjected to is less, its communication quality fall is also not obvious; And SS1 is positioned at cell edge, and the presence of intercell interference that is subjected to is bigger, and according to this resource distribution mode, SS1 can obtain more W
1Frequency resource, thus effectively reduce the presence of intercell interference intensity that SS1 is subjected to.
Fig. 6 is the simulation result schematic diagram of the present invention according to the SLI selection feedback sets of subbands of sets of subbands, and it is divided and the power division situation based on cell frequency resources shown in Figure 1,
Represent lower powered sets of subbands, " zero " represents high-power sets of subbands, and abscissa is represented the SINR of cell terminal, and ordinate is represented low power sub-bands S set LI value.As can be seen from Figure 6, the higher terminal (center terminal) of SINR is selected the lower powered sets of subbands of Reuse3, and the terminal that SINR is lower (edge termination) is selected the high-power sets of subbands of Reuse3, does not have un-reasonable phenomenon shown in Figure 2 to occur.The base station can be realized the reasonable distribution of cell frequency resources according to this feedback result for the terminal distribution frequency resource, and under the prerequisite that guarantees center of housing estate terminal communication quality, has effectively improved the communication quality of cell edge terminal.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. the distribution method of a cell frequency resources is characterized in that, may further comprise the steps:
A, base station all terminals in the sub-district send the rank indicated value that cell frequency resources is divided each sets of subbands that obtains;
B, each terminal are selected the sets of subbands of predetermined number respectively according to the rank indicated value of each sets of subbands, the channel quality indicated value of selected sets of subbands is fed back to described base station;
C, described base station are each terminal distribution frequency resource according to the channel quality indicated value of all terminal feedbacks.
2. the distribution method of cell frequency resources as claimed in claim 1 is characterized in that, among the described step b, each terminal is selected the sets of subbands of predetermined number respectively by following steps:
B1, divide and the power division situation, obtain the Signal to Interference plus Noise Ratio of each sets of subbands by channel estimating according to cell frequency resources;
B2, respectively with the Signal to Interference plus Noise Ratio of each sets of subbands and rank indicated value divided by the weighting Signal to Interference plus Noise Ratio that obtains each sets of subbands;
The weighting Signal to Interference plus Noise Ratio of b3, each sets of subbands of comparison, and select the sets of subbands of predetermined number according to comparative result, the weighting Signal to Interference plus Noise Ratio of selected sets of subbands is not less than the weighting Signal to Interference plus Noise Ratio that does not select sets of subbands.
3. the distribution method of cell frequency resources as claimed in claim 2 is characterized in that: described cell frequency resources is divided and the power division situation is that described base station sends to each terminal in advance.
4. the distribution method of cell frequency resources as claimed in claim 3 is characterized in that: described base station by clean culture, broadcasting or multicast mode send the rank indicated value of each sets of subbands, described cell frequency resources is divided and the power division situation.
5. the distribution method of cell frequency resources as claimed in claim 1 is characterized in that, after the described step c, and further comprising the steps of d:
D, described base station need to judge whether self adaptation to adjust the rank indicated value of each sets of subbands, if need, finish the adjustment of rank indicated value, otherwise it are constant to keep existing rank indicated value.
6. the distribution method of cell frequency resources as claimed in claim 5, it is characterized in that: in the described steps d, described base station judges whether that according to the loading condition of the interference strength of the spectrum efficiency of the resource tensity of sets of subbands, sets of subbands, sets of subbands or sub-district the needs self adaptation adjusts the rank indicated value of each sets of subbands.
7. the distribution method of cell frequency resources as claimed in claim 5 is characterized in that: after the described steps d, after the default rank indicated value transmission cycle of described base station waits reaches, get back to described step a.
8. the distribution method of cell frequency resources as claimed in claim 1, it is characterized in that: the initial value of the rank indicated value of each sets of subbands is that described base station sets in advance.
9. a terminal channel quality indicated value feedback device is characterized in that, comprising:
Sets of subbands is selected module, is used for dividing according to cell frequency resources the sets of subbands of the rank indicated value selection predetermined number of each sets of subbands that obtains;
Feedback module is used for selecting the channel quality indicated value of the sets of subbands of module selection to feed back to described base station described sets of subbands.
10. terminal channel quality indicated value feedback device as claimed in claim 9 is characterized in that: described sets of subbands is selected module to comprise Signal to Interference plus Noise Ratio acquisition module, weighting Signal to Interference plus Noise Ratio computing module and is selected module; Described Signal to Interference plus Noise Ratio acquisition module is used for dividing and the power division situation according to cell frequency resources, obtains the Signal to Interference plus Noise Ratio of each sets of subbands by channel estimating; Described weighting Signal to Interference plus Noise Ratio computing module is used for the weighting Signal to Interference plus Noise Ratio that calculates each sets of subbands according to the Signal to Interference plus Noise Ratio of each sets of subbands and rank indicated value; Described selection module is used for the weighting Signal to Interference plus Noise Ratio of each sets of subbands of comparison, and selects the sets of subbands of predetermined number according to comparative result, and the weighting Signal to Interference plus Noise Ratio of selected sets of subbands is not less than the weighting Signal to Interference plus Noise Ratio that does not select sets of subbands.
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| WO2012129903A1 (en) * | 2011-03-28 | 2012-10-04 | 华为技术有限公司 | Method and device for preventing inter-cell interference |
| CN102801498A (en) * | 2012-07-25 | 2012-11-28 | 电信科学技术研究院 | Method and equipment for reporting and determining sub-band feedback selected by terminal equipment |
| CN103780358A (en) * | 2012-10-24 | 2014-05-07 | 中兴通讯股份有限公司 | Method and terminal for confirming channel state information |
| WO2014139095A1 (en) * | 2013-03-12 | 2014-09-18 | 华为技术有限公司 | Method and device for scheduling frequency band resource |
| CN110035526A (en) * | 2018-01-12 | 2019-07-19 | 中兴通讯股份有限公司 | Method, apparatus, equipment and the storage medium of time-domain resource distribution |
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| CN1885752A (en) * | 2005-06-20 | 2006-12-27 | 华为技术有限公司 | Multi-cell frequency multiplex realizing method |
| CN101018220B (en) * | 2006-02-09 | 2011-02-16 | 华为技术有限公司 | Implementation method and device for avoiding the interference between the cells |
| CN101056292A (en) * | 2006-04-14 | 2007-10-17 | 华为技术有限公司 | Time frequency resource allocation method, device and base station and radio communication device applying same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012129903A1 (en) * | 2011-03-28 | 2012-10-04 | 华为技术有限公司 | Method and device for preventing inter-cell interference |
| CN102801498A (en) * | 2012-07-25 | 2012-11-28 | 电信科学技术研究院 | Method and equipment for reporting and determining sub-band feedback selected by terminal equipment |
| CN102801498B (en) * | 2012-07-25 | 2016-03-02 | 电信科学技术研究院 | A kind of terminal equipment selects reporting of subband feedback and defining method and equipment |
| CN103780358A (en) * | 2012-10-24 | 2014-05-07 | 中兴通讯股份有限公司 | Method and terminal for confirming channel state information |
| CN103780358B (en) * | 2012-10-24 | 2018-08-21 | 中兴通讯股份有限公司 | A kind of method and terminal of determining channel state information |
| WO2014139095A1 (en) * | 2013-03-12 | 2014-09-18 | 华为技术有限公司 | Method and device for scheduling frequency band resource |
| US9801181B2 (en) | 2013-03-12 | 2017-10-24 | Huawei Technologies Co., Ltd | Frequency band resource scheduling method and apparatus |
| CN110035526A (en) * | 2018-01-12 | 2019-07-19 | 中兴通讯股份有限公司 | Method, apparatus, equipment and the storage medium of time-domain resource distribution |
| CN110035526B (en) * | 2018-01-12 | 2023-06-09 | 中兴通讯股份有限公司 | Method, device, equipment and storage medium for time domain resource allocation |
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