CN103688585A - Signal transmission method and device for multi-RRU co-cell - Google Patents

Abstract

Embodiments of the present invention provide a signal transmission method and device for a multi-RRU co-cell. The method and the device are used for setting initial operating RRU for a UE. According to a first reference signal measured value of a serving cell and second reference signal measured values relative to each adjacent cell of the UE, a first UE interference factor is obtained. If the first UE interference factor is less than or equal to first UE interference threshold, a first operating RRU for the UE is selected from other RRUs. Or each RRU among the RRUs in the UE serving cell is used as a first RRU, and according to the first RRU reference signal measured value of the operating RUU in the serving cell and the first RRU reference signal measured value of the first RRU, isolation of the first RRU to the UE is obtained. When the isolation of the first RUU is less the first interference threshold, the first RUU is selected to be the first operating RUU for the UE. The first operating RRU and the initial operating RRU are used for signal transmission for the UE.

Description

Many radio frequency remote unit RRU are method for transmitting signals and the device of community altogether

Technical field

The embodiment of the present invention relates to the communication technology, relates in particular to a kind of many radio frequency remote unit RRU method for transmitting signals and the device of community altogether.

Background technology

At many Remote Radio Unit (Radio Remote Unit, RRU) be total in the scene of community, same baseband processing unit (Base Band Unit, BBU) although under a plurality of RRU be distributed on different geographical position, but logically belong to same community, so the cell parameters such as the carrier number of each RRU, frequency, channel configuration are identical.

In the scene of DuoRRUGong community, for subscriber equipment (User Equipment, UE) method of determining work RRU generally comprises: first (the Reference Signal Receiving Power of the Reference Signal Received Power under each RRU by UE, RSRP) or Reference Signal Received Quality (Reference Signal Receiving Quality, RSRQ) compare, a work RRU using maximum RSRP or RRU corresponding to RSRQ as UE, then obtain RSRP under this work RRU of the RSRP of UE under other RRU or RSRQ and UE or the difference of RSRQ, the difference of obtaining and preset difference value thresholding are compared, choose difference and be less than the RRU of preset difference value thresholding as other work RRU of UE.According to above-mentioned, determine the method for work RRU for UE, generally can select more work RRU for UE, but in actual applications, for example general of the UE near base station needs less work RRU just can meet work requirements, concerning these UE, the method of existing definite work RRU will cause the waste of Resource Block (Resource Block, referred to as RB).

Summary of the invention

The embodiment of the present invention provides method for transmitting signals and the device of a kind of DuoRRUGong community, in order to solve work on hand RRU, determines in method, exists for the problem that near point UE distributes more work RRU, avoids the waste of RB.

First aspect of the embodiment of the present invention is to provide the method for transmitting signals of a kind of DuoRRUGong community, comprising:

For user equipment (UE) arranges initialization RRU;

Obtain the second reference signal measured value of the first reference signal measured value of Serving cell, described UE place and each neighbor cell of described UE; Wherein, described the first reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the second reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE;

By the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, as the first interference factor of described UE;

If described the first interference factor is less than or equal to the first default interference threshold, in other RRU from described Serving cell except described initialization RRU, for described UE, choose the first work RRU, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

Second aspect of the embodiment of the present invention is to provide the method for transmitting signals of a kind of DuoRRUGong community, comprising:

For user equipment (UE) arranges initialization RRU;

In other RRU in Serving cell, described UE place except described initialization RRU, each RRU is as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain first interference factor of a described RRU to described UE; Wherein, described the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the first reference signal measured value is corresponding;

If the described isolation of a described RRU is less than the first default interference threshold, the first work RRU that to choose a described RRU be described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

The 3rd aspect of the embodiment of the present invention is to provide a kind of base station, comprising:

Module is set, is used to user equipment (UE) that initialization RRU is set;

Acquisition module, for obtaining the second reference signal measured value of the first reference signal measured value of Serving cell, described UE place and each neighbor cell of described UE; Wherein, described the first reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the second reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE;

Determination module, for by the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, as the first interference factor of described UE;

Choose module, if be less than or equal to the first default interference threshold for described the first interference factor, in other RRU from described Serving cell except initialization RRU, for described UE, choose the first work RRU, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

The 4th aspect of the embodiment of the present invention is to provide a kind of base station, comprising:

Module is set, is used to user equipment (UE) that initialization RRU is set;

The first acquisition module, for in Serving cell, described UE place each RRU of other RRU except described initialization RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain the isolation of a described RRU to described UE, wherein, described the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the first reference signal measured value is corresponding;

Choose module, if be less than the first default interference threshold for the described isolation of a described RRU, the first work RRU that to choose a described RRU be described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

The 5th aspect of the embodiment of the present invention is to provide a kind of base station, comprising:

Memory, for storage program;

Receiver, for obtaining the second reference signal measured value of the first reference signal measured value of Serving cell, user equipment (UE) place and each neighbor cell of described UE; Wherein, described the first reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the second reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE;

Described processor, be used to described UE that initialization RRU is set, after described receiver gets the described second reference signal measured value of described the first reference signal measured value and neighbor cell described in each, by the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, the first interference factor as described UE, if and described the first interference factor is less than or equal to the first default interference threshold, in other RRU from described Serving cell except described initialization RRU, for described UE, choose the first work RRU, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

The 6th aspect of the embodiment of the present invention is to provide a kind of base station, comprising:

Memory, for storage program;

Processor, be used to user equipment (UE) that initialization RRU is set, in other RRU in Serving cell, described UE place except described initialization RRU, each RRU is as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain the isolation of a described RRU to described UE, if and the described isolation of a described RRU is less than the first default interference threshold, the first work RRU that to choose a described RRU be described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission, wherein, a described RRU is any one RRU in other RRU in described Serving cell, described the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the first reference signal measured value is corresponding.

Method for transmitting signals and the device of the DuoRRUGong community that the embodiment of the present invention provides, for UE arranges initialization RRU, according to the second reference signal measured value of each neighbor cell of the first reference signal measured value of the Serving cell, UE place getting and UE, obtain first interference factor of all neighbor cells to UE, if the first interference factor is less than the first default interference threshold, in RRU from Serving cell, for UE chooses the first work RRU, utilize the first work RRU and initialization RRU to carry out signal transmission for UE; Or for UE arranges initialization RRU, in other RRU in Serving cell, UE place except initialization RRU, each RRU is as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a RRU that has been defined as the work RRU of this UE in Serving cell, obtain the isolation of a RRU to UE, if the isolation of a RRU is less than the first default interference threshold, the first work RRU that to choose a RRU be UE, utilizes the first work RRU and initialization RRU to carry out signal transmission for UE.The embodiment of the present invention is the interference factor to UE according to neighbor cell, or according to the isolation of each RRU of other except initialization RRU to UE in Serving cell, determine the work RRU of UE, be conducive to be reduced to the quantity of near point UE assignment RRU, thereby reduced the waste of RB.

Accompanying drawing explanation

The method for transmitting signals schematic diagram of a kind of DuoRRUGong community that Fig. 1 provides for the embodiment of the present invention;

The method for transmitting signals schematic diagram of the another kind of DuoRRUGong community that Fig. 2 provides for the embodiment of the present invention;

The method for transmitting signals schematic diagram of the another kind of DuoRRUGong community that Fig. 3 provides for the embodiment of the present invention;

The method for transmitting signals schematic diagram of the another kind of DuoRRUGong community that Fig. 4 provides for the embodiment of the present invention;

The structural representation of a kind of base station that Fig. 5 provides for the embodiment of the present invention;

The structural representation of the another kind of base station that Fig. 6 provides for the embodiment of the present invention;

The structural representation of the another kind of base station that Fig. 7 provides for the embodiment of the present invention;

The structural representation of the another kind of base station that Fig. 8 provides for the embodiment of the present invention;

The structural representation of the another kind of base station that Fig. 9 provides for the embodiment of the present invention.

Embodiment

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

At this, need explanation, the method for transmitting signals of the DuoRRUGong community providing in following embodiment can be applied in global system for mobile communications (Global System for Mobile Communication, GSM), universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, WIMAX) scene of the DuoRRUGong community such as system and Long Term Evolution (Long Term Evolution, LTE) system.The executive agent of the method for transmitting signals of the DuoRRUGong community that following embodiment provides can be the base station under above-mentioned arbitrary scene.

Embodiment mono-

The method for transmitting signals of a kind of DuoRRUGong community that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, the method comprises the following steps:

100, for user equipment (UE) arranges initialization RRU.

When UE networks, base station can arrange an initialization RRU for UE.Particularly, base station can obtain the 3rd reference signal measured value under each RRU in Serving cell, and wherein, the 3rd reference signal measured value is for characterizing the quality of uplink signal of the RRU that the 3rd reference signal measured value is corresponding.RRU corresponding to the 3rd reference signal measured value of base station selection maximum is as the initialization RRU of UE.

101, obtain the second reference signal measured value of the first reference signal measured value of Serving cell, described UE place and each neighbor cell of described UE; Wherein, described the first reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the second reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE.

In practical application, UE is when reception or transmitted signal, and the signal that send each neighbor cell of the Serving cell of UE generally can produce certain interference to UE.First interference factor of all neighbor cells of Serving cell that base station can obtain UE to UE.

In the present embodiment, base station can obtain the first reference signal measured value of the downlink signal quality that characterizes UE Serving cell and characterize each neighbor cell of UE to the second reference signal measured value of the downlink signal quality of UE.Particularly, when the first reference signal measured value is the descending RSRP of UE Serving cell, the descending RSRP that the second reference signal measured value is neighbor cell.Base station obtains the descending RSRP of UE Serving cell, and the descending RSRP that receives each neighbor cell that UE reports.Correspondingly, when the first reference signal measured value is the descending RSRQ of UE Serving cell, the descending RSRQ that the second reference signal measured value is neighbor cell, base station obtains the descending RSRQ of UE Serving cell, and the descending RSRQ that receives each neighbor cell that UE reports.UE reports base station by the descending RSRP in each neighbor cell or RSRQ, and read group total is carried out by the descending RSRP of each neighbor cell or RSRQ in base station.

102, by the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, as the first interference factor of described UE.

In the present embodiment, base station is according to the ratio of the first reference signal measured value and the second reference signal measured value sum, and the formula that obtains the first interference factor is:

$G_1=\frac{C_1}{{\mathrm{\Σ}}_{i=1}^N{C}_{2i}};$

If G ₁be the first interference factor, C ₁be the first reference signal measured value, C _2ifor the second reference signal measured value of i neighbor cell of UE Serving cell, i=1,2 ... N,

for the second reference signal measured value sum of all neighbor cells of UE Serving cell, N is the number of the neighbor cell of UE Serving cell.

Need explanation, in above-mentioned formula, the first reference signal measured value C ₁can be RSRP, can be also RSRQ, the second reference signal measured value C _2ican be RSRP, can be also RSRQ.But the first reference signal measured value and the second reference signal measured value, be necessary for the measured value of same type, that is to say, if C ₁for RSRP, C _2ialso be RSRP; And if C ₁for RSRQ, C _2ialso be RSRQ.

In practical application, base station can receive the cqi (Channel quality indicator, CQI) of UE feedback.Because CQI can indicate the disturbed condition of neighbor cell to UE, base station can be directly using CQI as the first interference factor.Generally, UE can be according to signal noise ratio (Signal to Noise Ratio, SNR), Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, SINR) or signal with noise distortion than (Signal to Noise and Distortion Ratio, SNDR) etc. the performance Index Calculation of channel obtains CQI, then this CQI is fed back to base station.

103, judge whether described the first interference factor is less than or equal to the first default interference threshold.

After getting the first interference factor, comparison is entered by the first interference factor and the first default interference threshold in base station, to judge whether the first interference factor is less than or equal to the first interference threshold.If the first interference factor is less than or equal to the first interference threshold, execution step 104; If the first interference factor is greater than the first interference threshold, execution step 105.

104, from described UE Serving cell, in other RRU except described Initial R RU, for described UE, choose work RRU, utilize described the first work RRU and initialization RRU to carry out signal transmission for UE.

In practical application, far point or edge UE are due to far away apart from base station, cause the signal strength signal intensity of downstream signal of UE Serving cell less, neighbor cell is relatively strong to the interference of UE, the first interference factor is relatively little, base station just need to be for this UE distributes a plurality of work RRU, to improve the signal quality of UE.

In the present embodiment, if the first interference factor is less than or equal to the first interference threshold, illustrate that this UE is far point or edge customer equipment, now, in order to improve the signal quality of UE, the first work RRU is chosen for this UE in just need to the RRU from UE Serving cell in base station.Alternatively, base station can be defined as RRU all in Serving cell the first work RRU of UE.In the present embodiment, when the number of the work RRU of UE surpasses 1, this UE is combined dispatching equipment.

In practical application, the signal strength signal intensity of the downstream signal of near point UE Serving cell is higher, neighbor cell to the interference relatively of UE a little less than, the first interference factor is larger, the first interference factor of near point UE generally can be higher than the first interference threshold like this, and base station just can meet the demand of UE for this near point UE distributes a work RRU.In the present embodiment, if the first interference factor is greater than the first interference threshold, illustrate that this UE is near point subscriber equipment, this UE only needs a work RRU, and this work RRU is initialization RRU.Base station need to be for UE choose the first work RRU from other RRU.In the present embodiment, if UE only has a work RRU, this UE is independent controlling equipment.

Further, in base station, be that UE has chosen after the first work RRU, utilize the first work RRU and the initialization RRU of UE to carry out signal transmission to UE.

105, utilizing described initialization RRU is that described UE carries out signal transmission.

When if the first interference factor is greater than the first interference threshold, initialization RRU just can meet the demand of UE, and base station need to be for not choosing the first work RRU from other RRU, now, utilizes initialization RRU to carry out signal transmission for UE.

The method for transmitting signals of the DuoRRUGong community that the present embodiment provides, for UE arranges initialization RRU, according to the second reference signal measured value of the first reference signal measured value of UE Serving cell and each neighbor cell of UE, obtain the first interference factor of UE, if the first interference factor is less than or equal to the first interference threshold, in RRU from the Serving cell of UE, for UE chooses the first work RRU, utilize described the first work RRU and initialization RRU to carry out signal transmission for UE.The embodiment of the present invention is the disturbed condition to UE according to neighbor cell, determines the work RRU of UE, is conducive to be reduced to the near point UE quantity of RRU that shares out the work, thereby has reduced the waste of RB.

Embodiment bis-

The method for transmitting signals schematic diagram of the another kind of DuoRRUGong community that Fig. 2 provides for the embodiment of the present invention.As shown in Figure 2, the method comprises the following steps:

200, for user equipment (UE) arranges initialization RRU.

Base station is the process that UE arranges initialization RRU, identical with step 100 in above-described embodiment, base station obtains the 3rd reference signal measured value under each RRU in Serving cell, the RRU corresponding to the 3rd reference signal measured value of maximum is set to the initialization RRU of UE, and the sequence number of initialization RRU is defined as to 1.

201, obtain the second reference signal measured value of the first reference signal measured value of Serving cell, described UE place and each neighbor cell of described UE.

In the present embodiment, step 201 is identical with step 101 in above-described embodiment, and the introduction referring to above-described embodiment repeats no more herein.Need explanation, the value of the first interference threshold in the present embodiment can specifically arrange according to practical application, can be different from the value of the first interference threshold in above-described embodiment, can be also identical.

202, by the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, as the first interference factor of described UE.

In the present embodiment, step 202 is identical with step 102 in above-described embodiment, and the introduction referring to above-described embodiment repeats no more herein.

203, judge whether described the first interference factor is less than or equal to described the first interference threshold.

After getting the first interference factor, base station compares the first interference factor and the first default interference threshold, to judge whether the first interference factor is less than or equal to the first interference threshold.If the first interference factor is less than or equal to the first interference threshold, execution step 204.If the first interference factor is greater than the first interference threshold, execution step 206.

Alternatively, base station can about the acquisition process of CQI, can be recorded referring to related content in above-described embodiment using the CQI of UE feedback as the first interference factor, repeats no more herein.

204, in described Serving cell, in other RRU except Initial R RU, each RRU, as a RRU, obtains the isolation of a described RRU to described UE.

In the Serving cell of UE, have a plurality of RRU, each RRU can, to UE transmitted signal, when UE reception or transmitted signal, can produce certain interference to UE.In the present embodiment, the RRU of take is example, illustrates and is less than or equal to after the first interference threshold judging the first interference factor, and base station obtains the process of a RRU to the isolation of UE.

Alternatively, base station obtains a RRU: to the RRU in other RRU except initialization RRU in UE Serving cell, base station obtains the 3rd reference signal measured value sum of the RRU of the current work RRU that has been defined as UE, with the ratio of the 3rd reference signal measured value sum that remains RRU in other RRU except being defined as the work RRU of UE as the isolation of a RRU.

Alternatively, base station obtains a RRU: to the RRU in other RRU except initialization RRU in UE Serving cell, base station obtains current the 3rd reference signal measured value sum that has been defined as the work RRU of UE, with the ratio of the 3rd reference signal measured value of the RRU isolation as a RRU.

Alternatively, step 204 obtain a RRU to above-mentioned two kinds of implementations of the isolation of UE in, base station can be by the 3rd reference measurement values of all RRU in the UE Serving cell getting, according to descending, sort, then by the order after sequence, obtain successively the isolation of each RRU to UE in other RRU.In the present embodiment, after the 3rd reference signal measured value of each RRU is sorted, determining successively whether other each RRU are in the process of UE the first work RRU, when the isolation of certain RRU is greater than or equal to the second interference threshold, the first work RRU that this RRU is not UE just can be determined in base station.Because the 3rd reference signal measured value of the residue RRU after this RRU is all less than the 3rd reference signal measured value of this RRU, and then the residue RRU that base station can easily be determined after this RRU is not all the first work RRU of UE, simplified the process of choosing work RRU for UE, improved as UE chooses the ageing of work RRU, reduced energy consumption and the wasting of resources of base station.

In above-mentioned the first implementation, base station obtains a RRU and to the formula of the isolation of UE is:

$G_{2k}=\frac{{\mathrm{\Σ}}_{i=1}^{K-1}{C}_{3i}}{{\mathrm{\Σ}}_{j=k}^M{C}_{3j}};$

If G _2kbe the isolation of a RRU, k is the sequence number of a RRU, k=2,3 ... M; M is the number of RRU in UE Serving cell; C _3ifor being defined as the 3rd reference signal measured value of i work RRU in the work RRU of UE, C _3jthe 3rd reference signal measured value for j work RRU in the RRU of other RRU except being defined as UE work RRU;

for current work RRU the 3rd reference signal measured value sum that has been defined as UE, represent to go out in other RRU except being defined as the work RRU of UE and remain RRU the 3rd reference signal measured value sum.

In above-mentioned the second implementation, base station obtains a RRU and to the formula of the isolation of UE is:

$G_{2k}=\frac{{\mathrm{\Σ}}_{i=1}^{K-1}{C}_{3i}}{C_{3k}};$

If G _2kbe the isolation of a RRU, k is the sequence number of a RRU, k=2,3 ... M; M is the number of RRU in UE Serving cell; C _3ifor being defined as the 3rd reference signal measured value of i work RRU in the work RRU of UE, C _3kit is the 3rd reference signal measured value of a RRU;

for current work RRU the 3rd reference signal measured value sum that has been defined as UE.

Need explanation, the current RRU that has been defined as the work RRU of UE leaves in the work RRU set of UE in the present embodiment.While obtaining a RRU to the first interference factor of UE in base station, base station according to this work RRU set learn the current RRU that has been defined as the work RRU of UE, then obtain current RRU the 3rd reference signal measured value sum that has been defined as the work RRU of UE.

If the isolation of 205 described RRU is less than the second default interference threshold, the first work RRU that to choose a described RRU be described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

After getting the isolation of a RRU, base station compares this isolation and the second default interference threshold, if compare the isolation of a RRU, is less than the second interference threshold, the first work RRU that it is UE that base station selection goes out a RRU.Base station joins a RRU who is chosen for the first work RRU in the work RRU set of UE.

In the present embodiment, base station, successively using each RRU in other RRU as a RRU, to get the isolation of each RRU to UE in other RRU, and judges according to isolation whether each RRU is the first work RRU of UE.Need explanation, in the present embodiment, base station gets after the isolation of a RRU, directly according to the isolation of this RRU and the second interference threshold, judges whether this RRU is the first work RRU of UE.

In base station, be that UE has chosen after the first work RRU, utilize the first work RRU and the initialization RRU of UE to carry out signal transmission to UE.

206, utilizing described initialization RRU is that described UE carries out signal transmission.

If the first interference factor is greater than the first interference threshold, initialization RRU just can meet the demand of UE, and base station does not need for UE distributes other work RRU again, now, utilizes initialization RRU to carry out signal transmission for UE.

The method for transmitting signals of the DuoRRUGong community that the present embodiment provides, for UE, arranging after initialization RRU, obtain first interference factor of all neighbor cells of UE Serving cell to UE, when the first interference factor is less than or equal to the first interference threshold, further using in Serving cell except initialization RRU in other RRU each RRU as a RRU, obtain the isolation of a RRU to UE, if the isolation of a RRU is less than the second interference threshold, choose a RRU as the work RRU of UE, utilize the first work RRU and initialization RRU to carry out signal transmission for UE.The embodiment of the present invention combines by the first interference factor and isolation, for UE chooses work RRU, further reduced as the quantity of near point UE assignment RRU, but also can be reduced to the share out the work quantity of RRU of far point or edge UE, improve the accuracy of determining work RRU for UE, reduced the waste of RB.

Embodiment tri-

The method for transmitting signals schematic diagram of the another kind of DuoRRUGong community that Fig. 3 provides for the embodiment of the present invention.As shown in Figure 3, the method comprises the following steps:

300, for user equipment (UE) arranges initialization RRU.

Base station is the process that UE arranges initialization RRU, identical with step 100 in above-described embodiment, base station obtains the 3rd reference signal measured value under each RRU in Serving cell, and the RRU corresponding to the 3rd reference signal measured value of maximum is set to the initialization RRU of UE.In the present embodiment, sequence number that can initialization RRU is defined as 1.

301, obtain the second reference signal measured value of the first reference signal measured value of Serving cell, described UE place and each neighbor cell of described UE.

In the present embodiment, step 301 is identical with step 101 in above-described embodiment, and the introduction referring to above-described embodiment repeats no more herein.Need explanation, the value of the first interference threshold in the present embodiment can specifically arrange according to practical application, can be different from the value of the first interference threshold in above-described embodiment, can be also identical.

302, by the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, as the first interference factor of described UE.

In the present embodiment, step 302 is identical with step 102 in above-described embodiment, and the introduction referring to above-described embodiment repeats no more herein.

303, judge whether described the first interference factor is less than or equal to described the first interference threshold.

After getting the first interference factor, base station compares the first interference factor and the first default interference threshold, to judge whether the first interference factor is less than or equal to the first interference threshold.If the first interference factor is less than or equal to the first interference threshold, execution step 304.If the first interference factor is greater than the first interference threshold, execution step 306.

304, in described Serving cell in other RRU except described initialization RRU each RRU as the 2nd RRU, by the difference of the 3rd reference signal measured value of described the first reference signal measured value and described the 2nd RRU, with the ratio of the 3rd reference signal measured value sum of all described the second reference signal measured values and described the 2nd RRU described the second interference factor as described the 2nd RRU.

In the present embodiment, the 2nd RRU of take is example, illustrates and is less than or equal to after the first interference threshold judging the first interference factor, and base station obtains the process of each RRU to the second interference factor of UE in other RRU.

Judging the first interference factor is less than or equal to after the first interference threshold, base station, according to the 3rd reference signal measured value of other the 2nd RRU except initialization RRU in the second reference signal measured value of the first reference signal measured value of Serving cell, each neighbor cell of UE and Serving cell, obtains second interference factor of the 2nd RRU to UE.Wherein, the first reference signal measured value can be descending RSRP or the ginseng RSRQ of UE Serving cell, the second reference signal measured value can be descending RSRP or the RSRQ of neighbor cell, and the 3rd signal measurements can be UE RSRP or RSRQ under the 2nd RRU in Serving cell.

In step 301, buffer memory can be carried out by the second reference signal measured value of the first reference signal measured value of the Serving cell getting and each neighbor cell in base station, and in step 304, base station can obtain the first reference signal measured value and the second reference signal measured value from buffer unit.Similarly, in step 300, buffer memory can be carried out by getting the 3rd reference signal measured value of each RRU in Serving cell in base station, and in step 304, base station can get the 3rd reference signal measured value from buffer unit.

Particularly, base station is according to the 3rd reference signal measured value of the first reference signal measured value and the 2nd RRU, obtain the difference of the 3rd reference signal measured value of the first reference signal measured value and the 2nd RRU, and according to the 3rd reference signal measured value of the second reference signal measured value of all neighbor cells and the 2nd RRU, obtain the second reference signal measured value of all neighbor cells and the 3rd reference signal measured value of the 2nd RRU and value, again above-mentioned difference and above-mentioned and value are done to ratio, obtain second interference factor of the 2nd RRU to UE.

Similarly, base station, using each RRU in other RRU as the 2nd RRU, according to the above-mentioned method of the 2nd RRU to the second interference factor of UE of obtaining, obtains second interference factor of each RRU to UE in other RRU.

In the present embodiment, base station obtains the 2nd RRU and to the formula of the second interference factor of UE is:

$G_{3l}=\frac{C_1-C_{3l}}{C_{3l}+{\mathrm{\Σ}}_{i=1}^N{C}_{2i}},$

Wherein, establish G _3lbe second interference factor of the 2nd RRU to UE, l is the sequence number of the 2nd RRU, l=2,3 ... M, M is the number of RRU in UE Serving cell; C ₁be the first reference signal measured value, C _3lit is the 3rd reference signal measured value of the 2nd RRU; C _2ithe second reference signal measured value for i neighbor cell of UE Serving cell; I=1,2,3 ... N, N is the number of the neighbor cell of UE Serving cell;

the second reference signal measured value sum for all neighbor cells of UE Serving cell.

Need explanation, in above-mentioned formula, the first reference signal measured value, the second reference signal measured value and the 3rd reference signal measured value, be necessary for the measured value of same type, that is to say, if the first reference signal measured value is RSRP, the second reference signal measured value and the 3rd signal measurements are RSRP, and if the first reference signal measured value is RSRQ, the second reference signal measured value and the 3rd signal measurements are RSRQ.

If the difference of described the second interference factor of 305 described the first interference factors and described the 2nd RRU is greater than the 3rd default interference threshold, the first work RRU that to choose described the 2nd RRU be described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

After getting the second interference factor of the 2nd RRU, difference is done by the second interference factor of the first interference factor and the 2nd RRU in base station, this difference and the 3rd default interference threshold are compared, if this difference is greater than the 3rd interference threshold, the first work RRU that base station selection the 2nd RRU is UE.The 2nd RRU that is chosen for UE the first work RRU is put into the work RRU set of UE in base station.

Correspondingly, base station is using each RRU in other RRU as the 2nd RRU, and according to above-mentioned, according to the 2nd RRU the second interference factor and the 3rd interference threshold, the method for UE chooses the first work RRU, judges whether each RRU in other RRU is the first work RRU of UE.

In base station, be that UE has chosen after the first work RRU, the first work RRU and the initialization RRU that utilizes UE carries out signal transmission for UE.

306, utilizing described initialization RRU is that described UE carries out signal transmission.

If the first interference factor is greater than the first interference threshold, initialization RRU just can meet the demand of UE, and base station does not need for UE chooses the first work RRU again, now, utilizes initialization RRU to carry out signal transmission for UE.

The method for transmitting signals of the DuoRRUGong community that the present embodiment provides, for UE, arranging after initialization RRU, obtain first interference factor of all neighbor cells of UE to UE, when the first interference factor is less than or equal to the first interference threshold, further using each RRU in other RRU as the 2nd RRU, obtain second interference factor of the 2nd RRU to UE, if the difference of the first interference factor and the second interference factor is greater than the 3rd default interference threshold, the first work RRU that to choose the 2nd RRU be UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.The embodiment of the present invention combines by the first interference factor and the second interference factor, for UE determines work RRU, further reduced as the quantity of near point UE assignment RRU, but also can be reduced to the share out the work quantity of RRU of far point UE or edge UE, improve the accuracy of determining work RRU for UE, reduced the waste of RB.

Embodiment tetra-

The method for transmitting signals schematic diagram of the another kind of DuoRRUGong community that Fig. 4 provides for the embodiment of the present invention.As shown in Figure 4, the method comprises the following steps:

400, for user equipment (UE) arranges initialization RRU.

When UE networks, base station can arrange an initialization RRU for UE.Particularly, base station can obtain the first reference signal measured value under each RRU in Serving cell, and RRU corresponding to the first reference signal measured value of base station selection maximum be as the initialization RRU of UE, and the sequence number of this initialization RRU is defined as to 1.

401, in Serving cell, described UE place in other RRU except described initialization RRU each RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain the isolation of a described RRU to described UE, wherein, described the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the first reference signal measured value is corresponding.

In the present embodiment, have a plurality of RRU in the Serving cell of UE, each RRU can send signal, when UE sends or receive signal, can produce certain interference to UE.In the present embodiment, the RRU of take is example, illustrates that base station obtains the process of a RRU to the isolation of UE.Base station is according to current the first reference signal measured value of RRU and the first reference signal measured value of a RRU that has been defined as the work RRU of UE in Serving cell, obtain the isolation of a RRU to UE in the Serving cell of UE, in the present embodiment, the first reference signal measured value, for characterizing the quality of uplink signal of the RRU that this first reference signal measured value is corresponding, can be RSRP or the RSRQ under each RRU of other except initialization RRU in the Serving cell of UE.

Alternatively, base station obtains a RRU: base station obtains the first reference signal measured value sum of the RRU of the current work RRU that has been defined as UE in Serving cell, with the ratio after the measured value of the 3rd reference signal of the residue RRU except being defined as the work RRU of UE in Serving cell, as the isolation of a RRU to UE.

Alternatively, base station obtains a RRU: base station obtains current the first reference signal measured value sum that has been defined as the work RRU of UE, with the ratio of the first reference signal measured value of the RRU isolation as a RRU.

Alternatively, in step 401, obtain a RRU in the above-mentioned two kinds of implementations of the isolation of UE, after the first reference measurement values of base station each RRU in getting Serving cell, can by all RRU first reference signal measured value is descending sorts, by the order after sequence, obtain successively the isolation of a RRU to UE in Serving cell.In the present embodiment, after the first reference signal measured value of each RRU is sorted, determine successively more whether the RRU in Serving cell is in the course of work of UE, when certain RRU is greater than or equal to the first interference threshold to the isolation of UE, the work RRU that this RRU is not UE is determined in base station.Because the first reference signal measured value of the residue RRU after this RRU is all less than the first reference signal measured value of this RRU, and then the residue RRU that base station can easily be determined after this RRU is not all the work RRU of UE, simplified the process of determining work RRU for UE, improved as UE determines the ageing of work RRU, reduced energy consumption and the wasting of resources of base station.

In above-mentioned the first implementation, base station obtains a RRU and to the formula of the isolation of UE is:

$G_{1k}=\frac{{\mathrm{\Σ}}_{i=1}^{K-1}{C}_{1i}}{{\mathrm{\Σ}}_{j=k}^M{C}_{1j}};$

If G _1kbe the isolation of a RRU, k is the sequence number of a RRU, k=2,3 ... M; M is the number of RRU in UE Serving cell; C _1ifor being defined as the first reference signal measured value of i work RRU in the work RRU of UE, C _1jthe first reference signal measured value for j work RRU in the RRU of other RRU except being defined as UE work RRU;

for current work RRU the first reference signal measured value sum that has been defined as UE,

represent to go out in other RRU except being defined as the work RRU of UE and remain RRU the first reference signal measured value sum.

In above-mentioned the second implementation, base station obtains a RRU and to the formula of the isolation of UE is:

$G_{1k}=\frac{{\mathrm{\Σ}}_{i=1}^{K-1}{C}_{1i}}{C_{1k}};$

If G _1kbe the isolation of a RRU, k is the sequence number of a RRU, k=2,3 ... M; M is the number of RRU in UE Serving cell; C _1ifor being defined as the first reference signal measured value of i work RRU in the work RRU of UE, C _1kit is the first reference signal measured value of a RRU; for current work RRU the first reference signal measured value sum that has been defined as UE.

Need explanation, the current RRU that has been defined as the work RRU of UE leaves in the work RRU set of UE in the present embodiment.While obtaining a RRU to the isolation of UE in base station, base station according to this work RRU set learn the current RRU that has been defined as the work RRU of UE, then obtain current RRU the first reference signal measured value sum that has been defined as the work RRU of UE.

If the described isolation of 402 described RRU is less than the first default interference threshold, the first work RRU that to choose a described RRU be described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

After getting the isolation of a RRU, base station compares the isolation of a RRU and the first default interference threshold, if the isolation of a RRU is less than the first interference threshold, and the work RRU that base station selection the one RRU is UE.A RRU who is chosen for work RRU can be put into the work RRU set of UE in base station.

In the present embodiment, base station, successively using each RRU in other RRU as a RRU, to get the isolation of each RRU to UE in other RRU, and judges according to isolation whether each RRU is the first work RRU of UE.Need explanation, in the present embodiment, base station gets after the isolation of a RRU, directly according to the isolation of this RRU and the second interference threshold, judges whether this RRU is the first work RRU of UE.

Chosen the first work RRU for UE after, the first work RRU initialization RRU that base station utilizes UE carries out signal transmission for UE.

The method for transmitting signals of the DuoRRUGong community that the present embodiment provides, after choosing initialization RRU for UE, in UE Serving cell except initialization RRU in other RRU each RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a RRU that has been defined as the work RRU of this UE in Serving cell, obtain the isolation of a RRU to UE, if the isolation of a RRU is less than the first default interference threshold, the first work RRU that to choose a RRU be UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.The embodiment of the present invention is according to the isolation of each RRU except initialization RRU to UE in Serving cell, for UE chooses work RRU, the quantity that is conducive to be reduced near point UE assignment RRU, has improved the accuracy of determining work RRU for UE, reduces the waste of RB.

In practical application, UE is when reception or transmitted signal, and the signal that send each neighbor cell of UE, generally also can produce certain interference to UE.Base station can also obtain first interference factor of all neighbor cells of UE to this UE.Particularly, base station obtains the second reference signal measured value of the downlink signal quality that characterizes UE Serving cell and characterizes each neighbor cell of UE to the 3rd reference signal measured value of the downlink signal quality of UE.Wherein, the second reference signal measured value can be descending RSRP or the descending RSRQ of UE Serving cell, the descending RSRP that the 3rd reference signal measured value is neighbor cell or descending RSRQ.Base station is by the ratio of the second reference signal measured value and all the second reference signal measured value sums, as the first interference factor of UE.Process about the first interference factor of base station UE can, referring to the record of above-described embodiment related content, repeat no more herein.

After getting the first interference factor, the embodiment of the present invention is combined with isolation by the first interference factor, for UE chooses work RRU, can further be reduced to the quantity of near point UE assignment RRU, but also can be reduced to the share out the work quantity of RRU of far point or edge UE, improve the accuracy of determining work RRU for UE, reduced the waste of RB.After being combined with isolation about the first interference factor, for UE chooses work RRU related content, can, referring to the record of related content in above-mentioned related embodiment, repeat no more herein.

Embodiment five

The structural representation of a kind of base station that Fig. 5 provides for the embodiment of the present invention.As shown in Figure 5, this base station comprises: module 50, acquisition module 51, determination module 52 are set and choose module 53.

Wherein, when UE networks, module 50 is set and can an initialization RRU be set for UE.Particularly, module 50 is set and can gets the 3rd reference signal measured value under each RRU in Serving cell at acquisition module 51, wherein, the 3rd reference signal measured value is for characterizing the quality of uplink signal of the RRU that the 3rd reference signal measured value is corresponding.Then module 50 is set and chooses RRU that the 3rd maximum reference signal measured value is corresponding as the initialization RRU of UE, the sequence number of initialization RRU is made as to 1.

Acquisition module 51 obtains the second reference signal measured value of the first reference signal measured value of Serving cell, UE place and each neighbor cell of UE.Wherein, the first reference signal measured value is for characterizing the downlink signal quality of Serving cell, and the second reference signal measured value is for characterizing neighbor cell to the downlink signal quality of UE.

In practical application, UE is when reception or transmitted signal, and the signal that send each neighbor cell of the Serving cell of UE generally can produce certain interference to UE.First interference factor of all neighbor cells of Serving cell that base station can obtain UE to UE.

Particularly, when the first reference signal measured value is the descending RSRP of UE Serving cell, the descending RSRP that the second reference signal measured value is neighbor cell.Acquisition module 51 obtains the descending RSRP of UE Serving cells, and the descending RSRP that receives each neighbor cell that UE reports.Correspondingly, when the first reference signal measured value is the descending RSRQ of UE Serving cell, the descending RSRQ that the second reference signal measured value is neighbor cell, acquisition module 51 obtains the descending RSRQ of UE Serving cells, and the descending RSRQ that receives each neighbor cell that UE reports.UE reports acquisition module 51 by the descending RSRP in each neighbor cell or RSRQ.Determination module 52 carries out read group total by the descending RSRP of each neighbor cell or RSRQ.Determination module 52 after getting all the second reference signal measured value sums, the first interference factor using the ratio of the first reference signal measured value and all the second reference signal measured value sums as UE.

In the present embodiment, determination module 51 is according to the ratio of the first reference signal measured value and the second reference signal measured value sum, and the formula that obtains the first interference factor is:

$G_1=\frac{C_1}{{\mathrm{\Σ}}_{i=1}^N{C}_{2i}},$

If G ₁be the first interference factor, C ₁be the first reference signal measured value, C _2ifor the second reference signal measured value of i neighbor cell of UE Serving cell, i=1,2 ... N,

for the second reference signal measured value sum of all neighbor cells of UE Serving cell, N is the number of the neighbor cell of UE Serving cell.

Need explanation, in above-mentioned formula, the first reference signal measured value and the second reference signal measured value, be necessary for the measured value of same type, that is to say, if C ₁for RSRP, C _2ialso be RSRP; And if C ₁for RSRQ, C _2ialso be RSRQ.

Alternatively, acquisition module 51 can receive the CQI of UE feedback.Because CQI can indicate the disturbed condition of neighbor cell to UE, base station can be directly using CQI as the first interference factor.About the acquisition process of CQI, can record referring to related content in above-described embodiment, repeat no more herein.

In practical application, far point or edge UE are due to far away apart from base station, cause the signal strength signal intensity of downstream signal of UE Serving cell less, neighbor cell is relatively strong to the interference of UE, the first interference factor is relatively little, base station just need to be for this UE distributes a plurality of work RRU, to improve the signal quality of UE.

At determination module 52, get after the first interference factor, choosing module 53 compares the first interference factor and the first default interference threshold, if the first interference factor is less than or equal to the first default interference threshold, illustrate that this UE is far point or edge customer equipment, now, in order to improve the signal quality of UE, determination module 52 is chosen the first work RRU for this UE in need to the RRU from UE Serving cell.Alternatively, choose the first work RRU that module 53 can be chosen for RRU all in Serving cell UE.In the present embodiment, when the number of the work RRU of UE surpasses 1, this UE is combined dispatching equipment.

In practical application, the signal strength signal intensity of the downstream signal of near point UE Serving cell is higher, neighbor cell to the interference relatively of UE a little less than, the first interference factor is larger, the first interference factor of near point UE generally can be higher than the first interference threshold like this, and base station just can meet the demand of UE for this near point UE distributes a work RRU.In the present embodiment, choose module 53 when the first interference factor is greater than the first interference threshold, illustrate that this UE is near point subscriber equipment, this UE only needs a work RRU, and this work RRU is initialization RRU.Choosing module 53 need to be for UE choose the first work RRU from other RRU.In the present embodiment, if UE only has a work RRU, this UE is independent controlling equipment.

For UE, chosen after the first work RRU choosing module 53, the first work RRU and the initialization RRU that utilizes UE carries out signal transmission for UE.And when the first interference factor is greater than the first interference threshold, initialization RRU just can meet the demand of UE, need to be for not choosing the first work RRU from other RRU, choose module 53 and utilize initialization RRU to carry out signal transmission for UE.

The base station that the present embodiment provides, for UE, arranging after initialization RRU, according to the second reference signal measured value of the first reference signal measured value of UE Serving cell and each neighbor cell of UE, obtain the first interference factor of UE, if the first interference factor is less than or equal to the first interference threshold, in other RRU from the Serving cell of UE except Initial R RU, for UE chooses work RRU, and utilize the first work RRU and initialization RRU to carry out signal transmission for UE.The embodiment of the present invention is the disturbed condition to UE according to neighbor cell, determines the work RRU of UE, is conducive to be reduced to the near point UE quantity of RRU that shares out the work, thereby has reduced the waste of RB.

Embodiment six

The structural representation of the another kind of base station that Fig. 6 provides for the embodiment of the present invention.As shown in Figure 6, this base station comprises: module 60, acquisition module 61, determination module 62 are set and choose module 63.

Wherein, module 60, acquisition module 61 and determination module 62 these module practical function and annexations are set, can, referring to the record of related content in above-mentioned example, repeat no more herein.

In the present embodiment, have a plurality of RRU in the Serving cell of UE, each RRU can send signal, when UE sends or receive signal, can produce certain interference to UE.

The implementation structure mode of choosing module 63 comprises: the first judging unit 631, acquiring unit 632, the second judging unit 633, choose unit 634 and signal transmission unit 635.

In the present embodiment, choose an optional implementation of choosing the first work RRU in module 63 Serving cells in other RRU except initialization RRU for UE:

The first judging unit 631 is connected with determination module 62, at determination module 62, get after the first interference factor, the first judging unit 631 compares the first interference factor and the first default interference threshold, judges whether the first interference factor is less than or equal to the first interference threshold.The first judging unit 631 is also connected with acquiring unit 632, at the first judging unit 631, judge the first interference factor and be less than or equal to after the first interference threshold, acquiring unit 632 obtains in Serving cell the isolation of each RRU to UE in other RRU except initialization RRU.

In the present embodiment, acquiring unit 632 is using each RRU in other RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a RRU that has been defined as the work RRU of UE in Serving cell, obtain the isolation of a RRU to UE.

Alternatively, acquiring unit 632 obtains a RRU: acquiring unit 632 obtains the first reference signal measured value sum of the RRU of the current work RRU that has been defined as UE in Serving cell, with the ratio remaining except being defined as the work RRU of UE in Serving cell after the 3rd reference signal measured value of RRU, as the isolation of a RRU to UE.

Alternatively, acquiring unit 632 obtains a RRU: acquiring unit 632 can obtain current the first reference signal measured value sum that has been defined as the work RRU of UE, with the ratio of the first reference signal measured value of a RRU as the isolation of a RRU to UE.

Alternatively, obtain a RRU to above-mentioned two kinds of implementations of the isolation of UE in, acquiring unit 632 can be by the 3rd reference measurement values of all RRU in the UE Serving cell getting, according to descending, sort, then by sequence after order successively using each RRU in other RRU as a RRU, obtain the isolation of each RRU to UE.In the present embodiment, after the 3rd reference signal measured value of each RRU is sorted, in determining other RRU successively, whether each RRU is in the process of UE the first work RRU, when the isolation of certain RRU is greater than or equal to the second interference threshold, the first work RRU that this RRU is not UE just can be determined in base station.Because the 3rd reference signal measured value of the residue RRU after this RRU is all less than the 3rd reference signal measured value of this RRU, and then the residue RRU that base station can easily be determined after this RRU is not all the first work RRU of UE, simplified the process of choosing work RRU for UE, improved as UE chooses the ageing of work RRU, avoided energy consumption and the wasting of resources of base station.

In above-mentioned the first implementation, acquiring unit 632 obtains a RRU and to the formula of the isolation of UE is:

$G_{2k}=\frac{{\mathrm{\Σ}}_{i=1}^{K-1}{C}_{3i}}{{\mathrm{\Σ}}_{j=k}^M{C}_{3j}};$

If G _2kbe the isolation of a RRU, k is the sequence number of a RRU, k=2,3 ... M; M is the number of RRU in UE Serving cell; C _3ifor being defined as the 3rd reference signal measured value of i work RRU in the work RRU of UE, C _3jthe 3rd reference signal measured value for j work RRU in the RRU of other RRU except being defined as UE work RRU;

for current work RRU the 3rd reference signal measured value sum that has been defined as UE,

represent to go out in other RRU except being defined as the work RRU of UE and remain RRU the 3rd reference signal measured value sum.

In above-mentioned the second implementation, acquiring unit 632 obtains a RRU and to the formula of the isolation of UE is:

$G_{2k}=\frac{{\mathrm{\Σ}}_{i=1}^{K-1}{C}_{3i}}{C_{3k}};$

If G _2kbe the isolation of a RRU, k is the sequence number of a RRU, k=2,3 ... M; M is the number of RRU in UE Serving cell; C _3ifor being defined as the 3rd reference signal measured value of i work RRU in the work RRU of UE, C _3kit is the 3rd reference signal measured value of a RRU;

for current work RRU the 3rd reference signal measured value sum that has been defined as UE.

Need explanation, the current RRU that has been defined as the work RRU of UE leaves in the work RRU set of UE in the present embodiment.While obtaining a RRU to the isolation of UE in base station, base station according to this work RRU set learn the current RRU that has been defined as the work RRU of UE, then obtain current RRU the first reference signal measured value sum that has been defined as the work RRU of UE.

After getting the isolation of a RRU, the second judging unit 633 compares the isolation of a RRU and the first default interference threshold, if the isolation of a RRU is less than the first interference threshold, chooses unit 634 and choose the work RRU that a RRU is UE.Choose unit 634 and a RRU who is chosen for work RRU is put into the work RRU set of UE.

In the present embodiment, base station, successively using each RRU in other RRU as a RRU, to get the isolation of each RRU to UE in other RRU, and judges according to isolation whether each RRU is the first work RRU of UE.Need explanation, in the present embodiment, base station gets after the isolation of a RRU, directly according to the isolation of this RRU and the second interference threshold, judges whether this RRU is the first work RRU of UE.

For UE, chosen after the first work RRU choosing unit 634, signal transmission unit 635 utilizes the first work RRU and initialization RRU of UE to carry out signal transmission to UE.When if the first judging unit 631 is judged the first interference factor and is greater than the first interference threshold, initialization RRU just can meet the demand of UE, choosing unit 634 does not need from other RRU, to choose the first work RRU for UE, now, signal transmission unit 635 utilizes initialization RRU to carry out signal transmission for UE.

In an optional implementation of choosing work RRU for UE, the base station that the present embodiment provides is the isolation to UE according to each RRU in other RRU except initialization RRU in the first interference factor and Serving cell, for UE chooses work RRU, be conducive to be reduced to the quantity of near point UE assignment RRU, improve the accuracy of determining work RRU for UE, reduced the waste of RB.

In the present embodiment, choosing another optional implementation that module 63 chooses the first work RRU for UE in other RRU except Initial R RU from Serving cell is:

In the present embodiment, acquiring unit 632, using each RRU in other RRU as the 2nd RRU, is judged the first interference factor at the first judging unit 631 and is less than or equal to after the first interference threshold, obtains second interference factor of the 2nd RRU to UE.Particularly, acquiring unit 632 can be by the difference of the 3rd reference signal measured value of the first reference signal measured value and the 2nd RRU, with the ratio of the 3rd reference signal measured value sum of all the second reference signal measured values and the 2nd RRU, the second interference factor as the 2nd RRU to UE.Wherein, the first reference signal measured value can be descending RSRP or the ginseng RSRQ of UE Serving cell, the second reference signal measured value can be descending RSRP or the RSRQ of neighbor cell, and the 3rd signal measurements can be UE RSRP or RSRQ under the 2nd RRU in Serving cell.

Alternatively, base station can also comprise cache module 64.Cache module 64 is connected with acquisition module 61, and the first reference signal measured value of the Serving cell that acquisition module 61 is got and the second reference signal measured value of each neighbor cell carry out buffer memory.Then acquiring unit 632 can obtain the first reference signal measured value and the second reference signal measured value from cache module 64.Similarly, cache module 64 can also carry out buffer memory by getting the 3rd reference signal measured value of each RRU in Serving cell, and acquiring unit 64 can get the 3rd reference signal measured value from cache module 64.

Particularly, acquiring unit 632 is according to the 3rd reference signal measured value of the first reference signal measured value and the 2nd RRU, obtain the difference of the 3rd reference signal measured value of the first reference signal measured value and the 2nd RRU, and according to the 3rd reference signal measured value of the second reference signal measured value of all neighbor cells and the 2nd RRU, obtain the second reference signal measured value of all neighbor cells and the 3rd reference signal measured value of the 2nd RRU and value, again above-mentioned difference and above-mentioned and value are done to ratio, obtain second interference factor of the 2nd RRU to UE.

Similarly, base station, using each RRU in other RRU as the 2nd RRU, according to the above-mentioned method of the 2nd RRU to the second interference factor of UE of obtaining, obtains second interference factor of each RRU to UE in other RRU.

In the present embodiment, base station obtains the 2nd RRU and to the formula of the second interference factor of UE is:

$G_{3l}=\frac{C_1-C_{3l}}{C_{3l}+{\mathrm{\Σ}}_{i=1}^N{C}_{2i}},$

Wherein, establish G _3lbe second interference factor of the 2nd RRU to UE, l is the sequence number of the 2nd RRU, l=2,3 ... M, M is the number of RRU in UE Serving cell; C ₁be the first reference signal measured value, C _3lit is the 3rd reference signal measured value of the 2nd RRU; C _2ithe second reference signal measured value for i neighbor cell of UE Serving cell; I=1,2,3 ... N, N is the number of the neighbor cell of UE Serving cell;

the second reference signal measured value sum for all neighbor cells of UE Serving cell.

Need explanation, in above-mentioned formula, the first reference signal measured value, the second reference signal measured value and the 3rd reference signal measured value, be necessary for the measured value of same type, if the first reference signal measured value is RSRP, the second reference signal measured value and the 3rd signal measurements are RSRP; If the first reference signal measured value is RSRQ, the second reference signal measured value and the 3rd signal measurements are RSRQ.

Further, the second judging unit 633 judges whether the difference of the second interference factor of the first interference factor and the 2nd RRU is greater than the 3rd default interference threshold.Choosing unit 634 is connected with the second judging unit 633, the difference of judging the second interference factor of the first interference factor and the 2nd RRU at the second judging unit 633 is greater than after the 3rd default interference threshold, chooses unit 634 and the 2nd RRU is chosen for to the first work RRU of UE.Choose unit 634 and the 2nd RRU that is chosen for the first work RRU of UE can be put into the work RRU set of UE.

For UE, chosen after the first work RRU choosing unit 634, the first work RRU and initialization RRU that signal transmission unit 635 utilizes UE carries out signal transmission for UE.When if the first judging unit 631 is judged the first interference factor and is greater than the first interference threshold, initialization RRU just can meet the demand of UE, choosing unit 634 does not need from other RRU, to choose the first work RRU for UE, now, signal transmission unit 635 utilizes initialization RRU to carry out signal transmission for UE.

In choose another optional implementation of the first work RRU for UE, the base station that the present embodiment provides is according to second interference factor of each RRU to UE in other RRU except initialization RRU in the first interference factor and Serving cell, for UE chooses work RRU, be conducive to be reduced to the quantity of near point UE assignment RRU, improve the accuracy of determining work RRU for UE, reduced the waste of RB.

Embodiment seven

The structural representation of another base station that Fig. 7 provides for the embodiment of the present invention.As shown in Figure 7, this base station comprises: module 70, the first acquisition module 71 are set and choose module 72.

Wherein, when UE networks, module 70 is set and can an initialization RRU be set for UE.Particularly, module 70 is set and can obtains the first reference signal measured value under each RRU in Serving cell, wherein, the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that the first reference signal measured value is corresponding.Then module 70 is set and chooses RRU that the first maximum reference signal measured value is corresponding as the initialization RRU of UE, and the sequence number of initialization RRU is set as to 1.

In the present embodiment, in other RRU in Serving cell except initialization RRU, each RRU is as a RRU, and the RRU of take is example, illustrates that the first acquisition module 71 obtains the process of each RRU to the isolation of UE in other RRU.The first acquisition module 71 can, according to current the first reference signal measured value of RRU and the first reference signal measured value of a RRU that has been defined as the work RRU of UE in Serving cell, obtain the isolation of a RRU to UE.About the first acquisition module 71, obtain the process of a RRU to UE isolation, can, referring to the record of related content in above-described embodiment, repeat no more herein.

At the first acquisition module 71, get after the isolation of a RRU, choosing module 72 compares the isolation of a RRU and the first default interference threshold, if the isolation of a RRU is less than the first interference threshold, the first work RRU that to choose a RRU be UE.

Similarly, the first acquisition module 71, using each RRU in other RRU as a RRU, according to the above-mentioned method of a RRU to UE isolation of obtaining, obtains the isolation of each RRU to UE in other RRU.Then choose module 72 according to the isolation of a RRU, for UE chooses the first work RRU.About choosing module 72, from other RRU, for UE, choose the process of the first work RRU, can, referring to the record of related content in above-described embodiment, repeat no more herein.

Chosen the first work RRU for UE after, choose the first work RRU and initialization RRU that module 72 utilizes UE and carry out signal transmission for UE.If when choosing module 72 and judging the first interference factor and be greater than the first interference threshold, initialization RRU just can meet the demand of UE, choose module 72 and utilize initialization RRU to carry out signal transmission for UE.

The base station that the present embodiment provides, after choosing initialization RRU for UE, in UE Serving cell except initialization RRU in other RRU each RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a RRU that has been defined as the work RRU of this UE in Serving cell, obtain the isolation of a RRU to UE, if the isolation of a RRU is less than the first default interference threshold, the first work RRU that to choose a RRU be UE, utilizes the first work RRU and initialization RRU to carry out signal transmission for UE.The embodiment of the present invention is according to the isolation of each RRU except initialization RRU to UE in Serving cell, for UE chooses work RRU, the quantity that is conducive to be reduced near point UE assignment RRU, has improved the accuracy of determining work RRU for UE, reduces the waste of RB.

Further, in practical application, UE is when reception or transmitted signal, and the signal that send each neighbor cell of UE, generally also can produce certain interference to UE.Base station can also comprise the second acquisition module 73 and determination module 74.

The second acquisition module 73 the first acquisition module 71 in UE Serving cell except initialization RRU in other RRU each RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a RRU that has been defined as the work RRU of UE in Serving cell, obtain a RRU to before the isolation of UE, can obtain the second reference signal measured value of UE Serving cell and the 3rd reference signal measured value of each neighbor cell of UE.Determination module 74 is by the ratio of the second reference signal measured value and all the 3rd reference signal measured value sums, as the first interference factor of UE.Determination module 74, after getting the first interference factor, compares the first interference factor and the second interference threshold.Be less than or equal to the second interference threshold comparing the first interference factor, the isolation of each RRU that the first acquisition module 71 can obtain other RRU except initialization RRU in Serving cell to UE.About the second acquisition module 73, obtain the second reference signal measured value and the 3rd reference signal measured value, and determination module 74 obtains the process of the first interference factor, can, referring to the record of related content in above-described embodiment, repeat no more herein.

After getting the first interference factor, the embodiment of the present invention is combined with isolation by the first interference factor, for UE chooses work RRU, can further be reduced to the quantity of near point UE assignment RRU, but also can be reduced to the share out the work quantity of RRU of far point or edge UE, improve the accuracy of determining work RRU for UE, reduced the waste of RB.

Embodiment eight

The structural representation of a kind of base station that Fig. 8 provides for the embodiment of the present invention.As shown in Figure 8, this base station comprises: memory 80, receiver 81 and processor 82.

Memory 80, for storage program.Memory 80 may comprise high-speed RAM memory, also may comprise nonvolatile memory (non-volatile memory), as at least one magnetic disc store.

The program of storage in processor 82 execute stores 80.Processor 82 arranges initialization RRU for UE.Processor 82, for the process that UE arranges initialization RRU, can, referring to the record of related content in above-described embodiment, repeat no more herein particularly.

Receiver 81 obtains the second reference signal measured value of the first reference signal measured value of Serving cell, described UE place and each neighbor cell of described UE.Wherein, described the first reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the second reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE.

Processor 82 gets after the described second reference signal measurement of described the first reference signal measured value and neighbor cell described in each at receiver 81, by the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, the first interference factor as described UE, if and described the first interference factor is less than or equal to the first default interference threshold, in other RRU from described Serving cell except described initialization RRU, be the first work RRU that chooses of described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

Wherein, processor 82 may be a central processing unit (Central Processing Unit, CPU), or specific integrated circuit (Application Specific Integrated Circuit, or be configured to implement one or more integrated circuits of the embodiment of the present invention ASIC).

Alternatively, in specific implementation, if memory 80, receiver 81 and the independent realization of processor 82, memory 80, receiver 81 and processor 82 can interconnect and complete mutual communicating by letter by bus.This bus can be industry standard architecture (Industry Standard Architecture, ISA) bus, peripheral component interconnect (Peripheral Component, PCI) bus or extended industry-standard architecture (Extended Industry Standard Architecture, EISA) bus etc.Described bus can be divided into address bus, data/address bus, control bus etc.For ease of only representing with a thick line in presentation graphs 8, but do not represent only to have the bus of a bus or a type.

Optionally, in specific implementation, if memory 80, receiver 81 and processor 82 are integrated on chip piece, realize, memory 80, receiver 81 and processor 82 can complete identical communicating by letter by internal interface.

Each functional module of the base station that the present embodiment provides can be used for carrying out the flow process of the method for transmitting signals of the DuoRRUGong community shown in above-mentioned related embodiment, and its specific works principle repeats no more, and refers to the description of embodiment of the method.

The base station that the present embodiment provides is that UE arranges initialization RRU, according to the second reference signal measured value of the first reference signal measured value of UE Serving cell and each neighbor cell of UE, obtain the first interference factor of UE, if the first interference factor is less than or equal to the first interference threshold, in other RRU from the Serving cell of UE except initialization RRU, for UE chooses the first work RRU, utilize described the first work RRU and described initialization RRU to carry out signal transmission for UE.The embodiment of the present invention is the interference factor to UE according to neighbor cell, determines the work RRU of UE, is conducive to be reduced to the near point UE quantity of RRU that shares out the work, thereby has reduced the waste of RB.

And when the first interference factor is less than or equal to the first interference threshold, can obtain the disturbed condition of each RRU to UE in other RRU, according to the disturbed condition of each RRU to UE in other RRU, from other RRU for UE chooses the first work RRU, further be reduced to the quantity of near point UE assignment RRU, can also be reduced to the share out the work quantity of RRU of far point or edge UE, improve the accuracy of determining work RRU for UE.

Embodiment nine

The structural representation of the another kind of base station that Fig. 9 provides for the embodiment of the present invention.As shown in Figure 9, base station comprises: memory 90 and processor 91.

Memory 90 is for storage program.Memory 90 may comprise high-speed RAM memory, also may comprise nonvolatile memory (non-volatile memory), for example at least one magnetic disc store.

Processor 91 is used to user equipment (UE) that initialization RRU is set, in other RRU in Serving cell, described UE place except described initialization RRU, each RRU is as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain the isolation of a described RRU to described UE, if and the described isolation of a described RRU is less than the first default interference threshold, the first work RRU that to choose a described RRU be described UE, utilizing described the first work RRU and described Initial R RU is that described UE carries out signal transmission, wherein, described the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the first reference signal measured value is corresponding.

Wherein, processor 91 may be a CPU, or ASIC, or is configured to implement one or more integrated circuits of the embodiment of the present invention.

Alternatively, in specific implementation, if memory 90 and processor 91, memory 90 can interconnect and complete mutual communicating by letter by bus with processor 91.Described bus can be isa bus, pci bus or eisa bus etc.Described bus can be divided into address bus, data/address bus, control bus etc.For ease of representing, in Fig. 9, only with a thick line, represent, but do not represent only to have the bus of a bus or a type.

Optionally, in specific implementation, if memory 90 and processor 91 are integrated on chip piece, realize, memory 90 can complete identical communicating by letter by internal interface with processor 91.

Each functional module of the base station that the present embodiment provides can be used for carrying out the flow process of the method for transmitting signals of the DuoRRUGong community shown in above-mentioned related embodiment, and its specific works principle repeats no more, and refers to the description of embodiment of the method.

The base station that the present embodiment provides, after choosing initialization RRU for UE, in UE Serving cell except initialization RRU in other RRU each RRU as a RRU, obtain the isolation of a RRU to UE, if the isolation of a RRU is less than the first default interference threshold, the first work RRU that to choose a RRU be UE, utilizes the first work RRU and initialization RRU to carry out signal transmission for UE.The embodiment of the present invention is according to the isolation of each RRU except initialization RRU to UE in Serving cell, for UE chooses work RRU, the quantity that is conducive to be reduced near point UE assignment RRU, has improved the accuracy of determining work RRU for UE, reduces the waste of RB.

In obtaining other RRU, each RRU is to before the isolation of UE, can first obtain the disturbed condition of all neighbor cells to UE, the first interference factor is combined with isolation, for UE chooses work RRU, further be reduced to the quantity of near point UE assignment RRU, can also be reduced to the share out the work quantity of RRU of far point or edge UE, improve the accuracy of determining work RRU for UE.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.

Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (34)

1. a method for transmitting signals for DuoRRUGong community, is characterized in that, comprising:

For user equipment (UE) arranges initialization RRU;

Obtain the second reference signal measured value of the first reference signal measured value of Serving cell, described UE place and each neighbor cell of described UE; Wherein, described the first reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the second reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE;

By the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, as the first interference factor of described UE;

If described the first interference factor is less than or equal to the first default interference threshold, in other RRU from described Serving cell except described initialization RRU, be the first work RRU that chooses of described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

2. method according to claim 1, is characterized in that, describedly for user equipment (UE) arranges initialization RRU, comprises:

Obtain the 3rd reference signal measured value under each RRU in described Serving cell, wherein, described the 3rd reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the 3rd reference signal measured value is corresponding;

The RRU corresponding to the 3rd reference signal measured value of maximum is set to described initialization RRU.

3. method according to claim 1 and 2, is characterized in that, also comprises:

If described the first interference factor is greater than described the first interference threshold, utilizing described initialization RRU is that described UE carries out signal transmission.

4. method according to claim 2, is characterized in that, described the 3rd reference signal measured value is the RSRP under each RRU or RSRQ in described Serving cell.

5. according to the method described in claim 1-4 any one, it is characterized in that the descending RSRP that described the first reference signal measured value is described Serving cell; The descending RSRP that described the second reference signal measured value is described neighbor cell;

Described the first reference signal measured value that obtains Serving cell, described UE place and described UE described in each the second reference signal measured value of neighbor cell comprise:

Obtain the descending RSRP of described Serving cell;

Receive the descending RSRP of neighbor cell described in each that described UE reports.

6. according to the method described in claim 1-4 any one, it is characterized in that the descending RSRQ that described the first reference signal measured value is described Serving cell; The descending RSRQ that described the second reference signal measured value is described neighbor cell;

Described the first reference signal measured value that obtains Serving cell, described UE place and described UE described in each the second reference signal measured value of neighbor cell comprise:

Obtain the descending RSRQ of described Serving cell;

Receive the descending RSRQ of neighbor cell described in each that described UE reports.

7. method according to claim 1, it is characterized in that, if described the first interference factor is less than or equal to the first default interference threshold, in other RRU from described Serving cell except described initialization RRU, for choosing the first work RRU, described UE comprises:

Using each RRU in described other RRU as a RRU, obtain the isolation of a described RRU to described UE;

If the described isolation of a described RRU is less than the second default interference threshold, choose a described RRU as described the first work RRU of described UE.

8. method according to claim 7, is characterized in that, described in obtain a described RRU isolation of described UE comprised:

Obtain the 3rd reference signal measured value sum of the RRU of the current work RRU that has been defined as described UE, with the ratio of the 3rd reference signal measured value sum that remains RRU in described Serving cell except being defined as the work RRU of described UE as the described isolation of a described RRU;

Or, obtain current the 3rd reference signal measured value sum that has been defined as the work RRU of described UE, with the ratio of the 3rd reference signal measured value of a described RRU described isolation as a described RRU.

9. method according to claim 1, it is characterized in that, if described the first interference factor is less than or equal to the first default interference threshold, other RRU in described Serving cell except described initialization RRU, for choosing the first work RRU, described UE comprises:

Using each RRU in described other RRU as the 2nd RRU, by the difference of the 3rd reference signal measured value of described the first reference signal measured value and described the 2nd RRU, with the ratio of the 3rd reference signal measured value sum of all described the second reference signal measured values and described the 2nd RRU described the second interference factor as described the 2nd RRU;

If the difference of described the second interference factor of described the first interference factor and described the 2nd RRU is greater than the 3rd default interference threshold, described the first work RRU that to choose described the 2nd RRU be described UE.

10. a method for transmitting signals for DuoRRUGong community, is characterized in that, comprising:

For user equipment (UE) arranges initialization RRU;

In other RRU in Serving cell, described UE place except described initialization RRU, each RRU is as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain the isolation of a described RRU to described UE; Wherein, described the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the first reference signal measured value is corresponding;

If the described isolation of a described RRU is less than the first default interference threshold, the first work RRU that to choose a described RRU be described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

11. methods according to claim 10, is characterized in that, describedly for user equipment (UE) arranges initialization RRU, comprise:

Obtain the first reference signal measured value under each RRU in described Serving cell;

The RRU corresponding to the first reference signal measured value of maximum is set to described initialization RRU.

12. according to the method described in claim 10 or 11, it is characterized in that, described in Serving cell, described UE place in other RRU except described initialization RRU each RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain a described RRU isolation of described UE comprised:

Obtain the first reference signal measured value sum of the RRU of the current work RRU that has been defined as described UE in described Serving cell, with the ratio of the first reference signal measured value sum that remains RRU in described Serving cell except being defined as the work RRU of described UE as the described isolation of a described RRU;

Or, obtain current the first reference signal measured value sum that has been defined as the work RRU of described UE in described Serving cell, with the ratio of the first reference signal measured value of a described RRU described isolation as a described RRU.

13. according to the method described in claim 10 or 11 or 12, it is characterized in that, described the first reference signal measured value is the RSRP under each RRU or RSRQ in described Serving cell.

14. according to the method described in claim 10-13 any one, it is characterized in that, described in Serving cell, described UE place in other RRU except described initialization RRU each RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain a described RRU and comprise before the isolation of described UE:

Obtain the 3rd reference signal measured value of neighbor cell described in each of the second reference signal measured value of described Serving cell and described UE; Wherein, described the second reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the 3rd reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE;

By the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, as the second interference factor of described UE, and determine that described the second interference factor is less than or equal to the second default interference threshold.

15. methods according to claim 14, is characterized in that, the descending RSRP that described the second reference signal measured value is described Serving cell; The descending RSRP that described the 3rd reference signal measured value is described neighbor cell;

Described the second reference signal measured value that obtains each neighbor cell of described Serving cell the second reference signal measured value and described UE comprises:

Obtain the descending RSRP of described Serving cell;

Receive the descending RSRP of the described neighbor cell that described UE reports.

16. methods according to claim 14, is characterized in that, the descending RSRQ that described the second reference signal measured value is described Serving cell; The descending RSRQ that described the 3rd reference signal measured value is described neighbor cell;

Described the second reference signal measured value that obtains each neighbor cell of described Serving cell the second reference signal measured value and described UE comprises:

Obtain the descending RSRQ of described Serving cell;

Receive the descending RSRQ of the described neighbor cell that described UE reports.

17. 1 kinds of base stations, is characterized in that, comprising:

Module is set, is used to user equipment (UE) that initialization RRU is set;

Acquisition module, for obtaining the second reference signal measured value of the first reference signal measured value of Serving cell, described UE place and each neighbor cell of described UE; Wherein, described the first reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the second reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE;

Determination module, for by the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, as the first interference factor of described UE;

Choose module, if be less than or equal to the first default interference threshold for described the first interference factor, in other RRU from described Serving cell except described initialization RRU, be the first work RRU that chooses of described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

18. base stations according to claim 17, it is characterized in that, the described module that arranges is specifically for obtaining the 3rd reference signal measured value under each RRU in described Serving cell, the RRU corresponding to the 3rd reference signal measured value of maximum is set to described initialization RRU, and described the 3rd reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the 3rd reference signal measured value is corresponding.

19. according to the base station described in claim 17 or 18, it is characterized in that, described in choose module, also for being greater than described the first interference threshold at described the first interference factor, utilizing described initialization RRU is that described UE carries out signal transmission.

20. base stations according to claim 18, is characterized in that, described the 3rd reference signal measured value is the RSRP under each RRU or RSRQ in described Serving cell.

21. according to the base station described in claim 17-20 any one, it is characterized in that the descending RSRP that described the first reference signal measured value is described Serving cell; The descending RSRP that described the second reference signal measured value is described neighbor cell;

Described acquisition module is specifically for obtaining the descending RSRP of described Serving cell, and the descending RSRP that receives neighbor cell described in each that described UE reports.

22. according to the base station described in claim 17-20 any one, it is characterized in that the descending RSRQ that described the first reference signal measured value is described Serving cell; The descending RSRQ that described the second reference signal measured value is described neighbor cell;

Described acquisition module is specifically for obtaining the descending RSRQ of described Serving cell, and the descending RSRQ that receives neighbor cell described in each that described UE reports.

23. base stations according to claim 17, is characterized in that, described in choose module and comprise:

The first judging unit, judges whether described the first interference factor is less than or equal to described the first interference threshold;

Acquiring unit, is less than or equal to after described the first interference threshold for judge described the first interference factor at described judging unit, using each RRU in described other RRU as a RRU, obtains the isolation of a described RRU to described UE;

The second judging unit, for judging whether the described isolation of a described RRU is less than the second default interference threshold;

Choose unit, for judge the described isolation of a described RRU at described the second judging unit, be less than after described the second interference threshold, choose a described RRU as described the first work RRU of described UE;

Signal transmission unit is that described UE carries out signal transmission for utilizing described the first work RRU and described initialization RRU.

24. base stations according to claim 23, it is characterized in that, described acquiring unit is specifically for obtaining the 3rd reference signal measured value sum of the RRU of the current work RRU that has been defined as described UE, with the ratio of the 3rd reference signal measured value sum that remains RRU in described other RRU except being defined as the work RRU of described UE as the described isolation of a described RRU;

Or described acquiring unit is specifically for obtaining current the 3rd reference signal measured value sum that has been defined as the work RRU of described UE, with the ratio of the 3rd reference signal measured value of a described RRU described isolation as a described RRU.

25. base stations according to claim 23, it is characterized in that, described acquiring unit, also for judging described the first interference factor at described the first judging unit, be less than or equal to after the first interference threshold, using each RRU in described other RRU as the 2nd RRU, by the difference of the 3rd reference signal measured value of described the first reference signal measured value and described the 2nd RRU, with the ratio of the 3rd reference signal measured value sum of all described the second reference signal measured values and described the 2nd RRU described the second interference factor as described the 2nd RRU;

Described the second judging unit, also for judging whether the difference of described the second interference factor of described the first interference factor and described the 2nd RRU is greater than the 3rd default interference threshold;

The described unit of choosing, is also greater than described the 3rd interference threshold for judge the difference of described the second interference factor of described the first interference factor and described the 2nd RRU at described the second judging unit, described the first work RRU that to choose described the 2nd RRU be described UE.

26. 1 kinds of base stations, is characterized in that, comprising:

Module is set, is used to user equipment (UE) that initialization RRU is set;

The first acquisition module, for in Serving cell, described UE place each RRU of other RRU except described initialization RRU as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain the isolation of a described RRU to described UE, wherein, a described RRU is any one RRU in described other RRU; Described the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the first reference signal measured value is corresponding;

Choose module, if be less than the first default interference threshold for the described isolation of a described RRU, choose the work RRU that a described RRU is described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

27. base stations according to claim 26, it is characterized in that, the described module that arranges is specifically for obtaining the first reference signal measured value under each RRU in described Serving cell, and the RRU corresponding to the first reference signal measured value of maximum is set to described initialization RRU.

28. according to the base station described in claim 26 or 27, it is characterized in that, described the first acquisition module is specifically for obtaining the first reference signal measured value sum of the RRU of the current work RRU that has been defined as described UE in described Serving cell, with the ratio of the first reference signal measured value sum that remains RRU in described Serving cell except being defined as the work RRU of described UE as the described isolation of a described RRU;

Or, described the first acquisition module is specifically for obtaining current the first reference signal measured value sum that has been defined as the work RRU of described UE in described Serving cell, with the ratio of the first reference signal measured value of a described RRU described isolation as a described RRU.

29. according to the base station described in claim 26 or 27 or 28, it is characterized in that, described the first reference signal measured value is the RSRP under each RRU or RSRQ in described Serving cell.

30. according to the base station described in claim 26-29 any one, it is characterized in that, also comprises:

The second acquisition module, be used at described the first acquisition module using described each RRU of other RRU as a described RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain a described RRU to before the isolation of described UE, obtain the 3rd reference signal measured value of the second reference signal measured value of described Serving cell and each neighbor cell of described UE; Wherein, described the second reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the 3rd reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE;

Determination module, for by the ratio of described the second reference signal measured value and all described the 3rd reference signal measured value sums, as the first interference factor of described UE, and determines that described the first interference factor is less than or equal to the second default interference threshold.

31. base stations according to claim 30, is characterized in that, the descending RSRP that described the second reference signal measured value is described Serving cell; The descending RSRP that described the 3rd reference signal measured value is described neighbor cell;

Described the second acquisition module is specifically for obtaining the descending RSRP of described Serving cell, and the descending RSRP that receives the described neighbor cell that described UE reports.

32. base stations according to claim 30, is characterized in that, the descending RSRQ that described the second reference signal measured value is described Serving cell; The descending RSRQ that described the 3rd reference signal measured value is described neighbor cell;

Described the second acquisition module is specifically for obtaining the descending RSRQ of described Serving cell, and the descending RSRQ that receives the described neighbor cell that described UE reports.

33. 1 kinds of base stations, is characterized in that, comprising:

Memory, for storage program;

Receiver, for obtaining the second reference signal measured value of the first reference signal measured value of Serving cell, user equipment (UE) place and each neighbor cell of described UE; Wherein, described the first reference signal measured value is for characterizing the downlink signal quality of described Serving cell, and described the second reference signal measured value is for characterizing described neighbor cell to the downlink signal quality of described UE;

Processor, be used to described UE that initialization RRU is set, and by the ratio of described the first reference signal measured value and all described the second reference signal measured value sums, the first interference factor as described UE, if and described the first interference factor is less than or equal to the first default interference threshold, in other RRU from described Serving cell except described initialization RRU, be the work of the choosing RRU of described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission.

34. 1 kinds of base stations, is characterized in that, comprising:

Memory, for storage program;

Processor, be used to user equipment (UE) that initialization RRU is set, in other RRU in Serving cell, described UE place except described initialization RRU, each RRU is as a RRU, according to current the first reference signal measured value of RRU and the first reference signal measured value of a described RRU that has been defined as the work RRU of described UE in described Serving cell, obtain the isolation of a described RRU to described UE, if and the described isolation of a described RRU is less than the first default interference threshold, the first work RRU that to choose a described RRU be described UE, utilizing described the first work RRU and described initialization RRU is that described UE carries out signal transmission, wherein, described the first reference signal measured value is for characterizing the quality of uplink signal of the RRU that described the first reference signal measured value is corresponding.

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