CN103841586A - Method and apparatus for detecting downlink interference, and relay node - Google Patents
Method and apparatus for detecting downlink interference, and relay node Download PDFInfo
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- CN103841586A CN103841586A CN201210472234.7A CN201210472234A CN103841586A CN 103841586 A CN103841586 A CN 103841586A CN 201210472234 A CN201210472234 A CN 201210472234A CN 103841586 A CN103841586 A CN 103841586A
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Abstract
The invention discloses a method and apparatus for detecting a downlink interference, and a relay node. The method comprises: a relay node determines a downlink interference level of a wireless connecting port of the relay node according to resource information corresponding to a physical downlink shared channel (PDSCH) of the relay node and/or a relay physical downlink control channel (R-PDCCH) of the relay node. According to the invention, a defect existing in a method of measurement of downlink interference level reception by a relay node according to the related technology can be overcome; and the downlink interference level is determined based on the resource information of the PDSCH and/or the R-PDCCH. Therefore, the mutual interference influence is avoided and the measurement accuracy is enhanced.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method, device and via node that detects descending interference.
Background technology
3G (Third Generation) Moblie partner program (3rd Generation partnership projject, referred to as 3GPP) advanced long-term evolution system (Long Term Evolution-Advanced, referred to as LTE-A) relay system (Relay) operation principle as shown in Figure 1.Via node (RelayNode, referred to as RN) is connected to evolved contribution base station (also referred to as host base station by wireless connections (Un mouth); Donor E-UTRAN NodeB, referred to as DeNB) to obtain from the data of core net and to send data to core net, wherein, above-mentioned contribution base station is for RN, has the base station of part core net function.RN works together as an ordinary base station, and it is connected to core net by Un mouth, i.e. above-mentioned contribution base station.The subscriber equipment (User Equipment, referred to as UE) that RN is oneself by wireless connections (Uu mouth) provides service.RN and DeNB are operated in identical frequency and system bandwidth.
When a RN around exist other, same frequency base station (hereinafter to be referred as eNB) except the DeNB for own service or during with frequency DeNB, RN may be disturbed in these base stations.As shown in Figure 2, DeNB1 and RN1 may disturb RN2, and DeNB2 and RN2 may disturb RN1.
According to the table 5.4-1 of Section 5.4 of 3GPP technical protocol TS36.216V10.3.1, the Physical Downlink Shared Channel (Physical Downlink Shared Channel, referred to as PDSCH) that DeNB can configure Un mouth to RN is from which sign-on.While supposing that DeNB only dispatches a RN and do not dispatch the UE oneself serving, so, the symbol before the primary sign of the PDSCH of Un mouth is out of use with regard to empty.
According to the 5.6.1 joint of 3GPP TS36.216V10.3.1 and the table 5.4-1 of Section 5.4, DeNB is to (the Relay Physical Downlink Control CHannel of the relaying Physical Downlink Control Channel on first time slot of RN transmitting, referred to as R-PDCCH) start from the 4th symbol (, symbol 3).While supposing that DeNB does not dispatch the UE oneself serving, so, the symbol (, symbol 0, symbol 1, symbol 2) before the primary sign of R-PDCCH is out of use with regard to empty.
According to Section 7.2 of 3GPP TS36.216V10.3.1, suppose DeNB only dispatch RN, a DeNB do not dispatch the UE of oneself service, to the PDSCH of this RN and R-PDCCH is overlapping, R-PDCCH is while being cross interleave type, so, those Resource Block (Resource Block at R-PDCCH place, referred to as RB) on those resource unit group (Resource Element Group, referred to as REG) of not taken by R-PDCCH be out of use with regard to empty.Suppose only to distribute CCE0 to RN and whole RB to PDSCH, so, REG9 as shown in Figure 3 and REG10 with regard to empty need not.
According to Section 5.1 of 3GPPTS36.214V10.1.0, UE can be according to cell reference signals (Cell-specifc Reference Signal, referred to as C-RS) to base station report Reference Signal Received Power (Reference Signal Received Power, referred to as RSRP) and Reference Signal Received Quality (Reference Signal Received Quality, referred to as RSRQ).The descending interference level that UE is subject to can be extrapolated according to RSRP and RSRQ in base station.This method is also set up RN.
Because C-RS is must transmitting, if the C-RS of 2 communities position on frequency domain is identical, RN(and UE so) can be subject to the impact of this community C-RS to the measurement of disturbing, for example, while existence, partially or when frequency deviation, measure inaccurate.If the C-RS of 2 communities staggers position on frequency domain, so RN(and UE) interference of measuring can not reflect again real descending disturbance regime, for example, RSRP and RSRQ may be very high, but local area is made mistakes once launching PDSCH.
As can be seen from the above analysis, in correlation technique, measure the method that RN receives descending interference level and have many deficiencies, need a kind of new method to measure RN and receive descending interference level; And the accuracy of the method for measurement of correlation technique is also bad.
Summary of the invention
The invention provides a kind of method, device and via node that detects descending interference, in correlation technique, measure the method that RN is subject to descending interference level and have many deficiencies at least to solve, need a kind of new method to measure RN to be subject to the problem of descending interference level.
According to an aspect of the present invention, a kind of method that detects descending interference is provided, has comprised: via node has been determined the descending interference level of the wireless connections mouth of described via node according to resource information corresponding to the R-PDCCH of the PDSCH of described via node and/or described via node.
Preferably, via node determines that according to resource information corresponding to the R-PDCCH of the PDSCH of described via node and/or described via node the descending interference level of the wireless connections mouth of described via node comprises: described via node is determined the described PDSCH of handle whole resource block assignments in base station to described via node; Described via node is determined the descending interference level of the wireless connections mouth of described via node according to described PDSCH and/or resource information corresponding to described R-PDCCH.
Preferably, via node determines that according to resource information corresponding to the R-PDCCH of the PDSCH of described via node and/or described via node the descending interference level of the wireless connections mouth of described via node comprises: described via node is determined the described PDSCH of handle whole resource block assignments in base station to described via node; Described via node determines that the described PDSCH of described via node and the described R-PDCCH of described via node have overlapping on Resource Block; Described via node is determined the descending interference level of the wireless connections mouth of described via node according to described PDSCH and/or resource information corresponding to described R-PDCCH.
Preferably, described resource information at least comprises one of following: unappropriated symbol power information on channel, unappropriated resource unit group power information on channel.
Preferably, determine that according to described PDSCH and/or resource information corresponding to described R-PDCCH the descending interference level of the wireless connections mouth of described via node comprises: described via node determines according to the symbol power information before the primary sign of described PDSCH the descending interference level that described wireless connections mouth is subject to; Described via node determines according to the symbol power information before the primary sign of the R-PDCCH on first time slot the descending interference level that described wireless connections mouth is subject to; Or described via node determines according to the resource unit group power information not taken by described R-PDCCH on the Resource Block at described R-PDCCH place the descending interference level that described wireless connections mouth is subject to.
According to another aspect of the present invention, a kind of device that detects descending interference is provided, comprise: determination module, for determine the descending interference level of the wireless connections mouth of described via node according to resource information corresponding to the R-PDCCH of described PDSCH and/or described via node.
Preferably, described determination module comprises: the first determining unit, for determining the described PDSCH of handle whole resource block assignments in base station to described via node; The second determining unit, for determining the descending interference level of the wireless connections mouth of described via node according to described PDSCH and/or resource information corresponding to described R-PDCCH.
Preferably, described determination module comprises: the 3rd determining unit, for determining the described PDSCH of handle whole resource block assignments in base station to described via node; The 4th determining unit, for determining that the described PDSCH of described via node and the described R-PDCCH of described via node have overlapping on Resource Block; The 5th determining unit, for determining the descending interference level of the wireless connections mouth of described via node according to described PDSCH and/or resource information corresponding to described R-PDCCH.
Preferably, described determination module also comprises: first determines subelement, for determining according to the symbol power information before the primary sign of described PDSCH the descending interference level that described wireless connections mouth is subject to; Second determines subelement, for determining according to the symbol power information before the primary sign of the R-PDCCH on first time slot the descending interference level that described wireless connections mouth is subject to; Or the 3rd determines subelement, for determining according to the resource unit group power information not taken by described R-PDCCH on the Resource Block at described R-PDCCH place the descending interference level that described wireless connections mouth is subject to.
According to another aspect of the invention, provide a kind of via node, having comprised: the device of the descending interference of detection described in above-mentioned any one.
The present invention is by allowing relaying define the descending interference level of determining the wireless connections mouth of this via node according to the resource information of the PDSCH of self and/or R-PDCCH, utilize a kind of new method to measure RN and receive descending interference level, solve the deficiency of measuring RN in correlation technique and receive the method for descending interference level, determine descending interference level by the resource information of PDSCH and/or R-PDCCH, avoid the impact of phase mutual interference, and promoted the accuracy rate of measuring.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the relay system operation principle of correlation technique;
There is according to the base station of correlation technique and RN the schematic diagram disturbing in Fig. 2;
Fig. 3 is that the resource when overlapping is distributed schematic diagram according to the PDSCH of correlation technique RN and the R-PDCCH of self;
Fig. 4 is according to the flow chart of the method for the descending interference of detection of the embodiment of the present invention;
Fig. 5 is according to the structured flowchart one of the device of the descending interference of detection of the embodiment of the present invention;
Fig. 6 is according to the structured flowchart two of the device of the descending interference of detection of the embodiment of the present invention;
Fig. 7 is according to the structured flowchart one of the determination module of the device of the descending interference of detection of the embodiment of the present invention;
Fig. 8 is according to the structured flowchart two of the determination module of the device of the descending interference of detection of the embodiment of the present invention;
Fig. 9 is according to the structured flowchart of the determining unit of the device of the descending interference of detection of the embodiment of the present invention;
Figure 10 is according to the flow chart of the method for the descending interference of detection of the preferred embodiment of the present invention one;
Figure 11 is according to the flow chart of the method for the descending interference of detection of the preferred embodiment of the present invention two;
Figure 12 is according to the flow chart of the method for the descending interference of detection of the preferred embodiment of the present invention three;
Figure 13 is according to the flow chart of the method for the descending interference of detection of the preferred embodiment of the present invention four.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Receive that based on measuring RN in correlation technique the method for descending interference level exists many deficiencies, need a kind of new method to measure RN and receive the problem of descending interference level, the present embodiment provides a kind of method that detects descending interference, the flow process of the method illustrates as shown in Figure 4, comprises that step S402 is to step S404:
Step S402, via node receives PDSCH and/or the resource information corresponding to R-PDCCH of this via node;
Step S404, this via node is determined the descending interference level of the wireless connections mouth of via node according to PDSCH and/or resource information corresponding to R-PDCCH.
The present embodiment is by allowing relaying define the descending interference level of determining the wireless connections mouth of this via node according to the resource information of the PDSCH of self and/or R-PDCCH, utilize a kind of new method to measure RN and receive descending interference level, solve the deficiency of measuring RN in correlation technique and be subject to the method for descending interference level, determine descending interference level by the resource information of PDSCH and/or R-PDCCH, avoid the impact of phase mutual interference, and promoted the accuracy rate of measuring.
In implementation process, the implementation procedure of step S402 can possess various conditions, and under the environment of different condition, its accuracy of measuring descending interference level can further promote.Two kinds of situations of giving an example wherein below describe.
The first: for base station, only the PDSCH of a via node is dispatched, and whole RB are distributed to this via node.For the via node being only scheduled, whether it further gives the PDSCH of self whole resource block assignments in definite this base station; If so, this via node is determined the descending interference level of the wireless connections mouth of via node according to the PDSCH of self and/or resource information corresponding to R-PDCCH.Wherein, resource information can be unappropriated resource unit group power information etc. on unappropriated symbol power information, channel on channel, vacant symbol or the resource unit group namely mentioned before.
The second: for base station, carry out the operation similar to first method, for via node, its definite condition can further be upgraded.
This via node can first be determined the PDSCH of handle whole resource block assignments in base station to self; Determine that again the PDSCH of this via node and the R-PDCCH of via node have overlapping on Resource Block; Determine again the descending interference level of the wireless connections mouth of via node according to PDSCH and/or resource information corresponding to R-PDCCH.Have overlapping in the situation that at PDSCH and R-PDCCH, the descending interference level calculating is more accurate.
When enforcement, via node can according to PDSCH or R-PDCCH be one of any or the calculating of descending interference level is carried out in combination, in the time calculating in several ways, can be the combination of following any-mode: (1) via node determines according to the symbol power information before the primary sign of PDSCH the descending interference level that wireless connections mouth is subject to; (2) via node determines according to the symbol power information before the primary sign of the R-PDCCH on first time slot the descending interference level that wireless connections mouth is subject to; (3) via node determines according to the resource unit group power information not taken by R-PDCCH on the Resource Block at R-PDCCH place the descending interference level that wireless connections mouth is subject to.Its result can be got the mean value that various ways calculates, and accuracy rate is higher, can certainly only take single mode to calculate, more convenient with respect to compound mode like this.
Based on said method, the present embodiment also provides a kind of device that detects descending interference, and this device can be realized the method for the descending interference of above-mentioned detection, and this device can also be arranged in via node.The structured flowchart of this device can be as shown in Figure 5, comprise: determination module 1, for determine the descending interference level of the wireless connections mouth of via node according to the resource information corresponding to relaying Physical Downlink Control Channel R-PDCCH of the Physical Downlink Shared Channel PDSCH of via node and/or via node.Preferably, the device shown in this Fig. 5 can also be as shown in Figure 6, comprises receiver module 2, and this module is for receiving PDSCH and/or the resource information corresponding to R-PDCCH of this via node.
In the process realizing, determination module 1 can have various structures, and different structures can be realized different accuracy.A kind of structured flowchart of the determination module 1 shown in Fig. 7, it comprises: the first determining unit 10, for determining the PDSCH of handle whole resource block assignments in base station to via node; The second determining unit 20, is coupled with the first determining unit 10, for determine the descending interference level of the wireless connections mouth of via node according to PDSCH and/or resource information corresponding to R-PDCCH.
The another kind of structured flowchart of the determination module 1 shown in Fig. 8, it comprises: the 3rd determining unit 30, for determining the PDSCH of handle whole resource block assignments in base station to via node; The 4th determining unit 40, is coupled with the 3rd determining unit 30, for determining that the PDSCH of via node and the R-PDCCH of via node have overlapping on Resource Block; The 5th determining unit 50, is coupled with the 4th determining unit 40, for determine the descending interference level of the wireless connections mouth of via node according to PDSCH and/or resource information corresponding to R-PDCCH.
In the determination module 1 of Fig. 7 and different structure illustrated in fig. 8, the name of its each unit may be slightly different, but in fact can realize identical function, and for example the first determining unit 10 and the 3rd determining unit 30 its functions are actually identical; Or the second determining unit 20 and the 5th determining unit 50 are all the final descending interference levels of determining, the condition difference just realizing.
In a preferred embodiment, the structure of the second determining unit 20 or the 5th determining unit 50 can also be as shown in Figure 9, comprise: first determines subelement 102, for determining according to the symbol power information before the primary sign of PDSCH the descending interference level that wireless connections mouth is subject to; Second determines subelement 104, for determining according to the symbol power information before the primary sign of the R-PDCCH on first time slot the descending interference level that wireless connections mouth is subject to; The 3rd determines subelement 106, for determining according to the resource unit group power information not taken by R-PDCCH on the Resource Block at R-PDCCH place the descending interference level that wireless connections mouth is subject to.Above-mentioned three subelements are to arrange for the feedback corresponding information according to different channels under different situations, and flexibility is strong.
Preferred embodiment one
Based on measuring the problem of descending interference level in correlation technique, this preferred embodiment provides has a kind of method more accurately to infer the descending interference level that RN is subject to, so that DeNB evades the interference of other base stations to RN, elevator system performance.
In order to solve the problem in correlation technique, and reach above-mentioned technique effect, the flow process of the method that the present embodiment provides as shown in figure 10, comprises that step S1002 is to step S1014.
Step S1002, contribution base station is to primary sign, the search volume of relaying Physical Downlink Control Channel and the interleaving mode of relaying Physical Downlink Control Channel of via node configures physical DSCH Downlink Shared Channel.This process is the process of contribution base station configuration information.
Step S1004, dispatch according to pre-configured contribution base station, contribute base station only dispatch the Physical Downlink Shared Channel of a via node and whole resource block assignments to this via node, to make the Physical Downlink Shared Channel of this via node and the relaying Physical Downlink Control Channel of this via node overlapping on one or more Resource Block.At this time, contribution base station is only dispatched this via node and is not dispatched other via node, does not also dispatch own subscriber equipment of serving.
Step S1006, whether relay node judges searches out one's own R-PDCCH.In this process, in the search volume of the relaying Physical Downlink Control Channel of via node on first time slot, find one's own relaying Physical Downlink Control Channel.If found, perform step S1008, otherwise turn to step S1014.
Step S1008, it is pre-conditioned whether relay node judges meets, be via node investigate contribution base station whether whole resource block assignments to oneself Physical Downlink Shared Channel, and the Physical Downlink Shared Channel of oneself and the relaying Physical Downlink Control Channel of oneself overlapping on one or more Resource Block.If so, turn to step S1010, otherwise turn to step S1014.
Step S1010, the descending interference level that the Un mouth that via node utilizes averaging method to calculate oneself is subject to.
Wherein, each method comprises: (1) via node calculates according to the symbol before the primary sign of Physical Downlink Shared Channel the descending interference level that oneself Un mouth is subject to.(2) via node calculates according to the symbol before the primary sign of the relaying Physical Downlink Control Channel on first time slot the descending interference level that oneself Un mouth is subject to.(3) via node calculates according to those resource unit group that do not taken by relaying Physical Downlink Control Channel on those Resource Block at relaying Physical Downlink Control Channel place the descending interference level that oneself Un mouth is subject to.
Step S1012, the descending interference level that via node is subject to the Un mouth of contribution base station report oneself, wherein, can comprise the information such as frequency location, time location and interference level.
Step S1014, flow process finishes.
In sum, the method that the present embodiment proposes can be inferred comparatively exactly and the descending interference level that the Un mouth of RN is subject to.Be conducive to like this DeNB and evade possible interference, select suitable resource (for example, time resource and frequency resource) for RN service.
Preferred embodiment two
The flow process of the method that this enforcement provides as shown in figure 11, comprises that step S1102 is to step S1114.
Step S1102, DeNB is to primary sign, the search volume of R-PDCCH and the interleaving mode of R-PDCCH of RN configuration PDSCH.
Step S1104, DeNB only dispatches the PDSCH of a RN and whole RB is distributed to this RN, to make the PDSCH of this RN and the R-PDCCH of this RN overlapping on one or more RB.At this time, DeNB only dispatches this RN and does not dispatch other RN, does not also dispatch the UE of oneself service.
Step S1106, finds one's own R-PDCCH in the search volume of the R-PDCCH of RN on first time slot.If found, turn to step S1108, otherwise turn to step S1114.
Step S1108, RN judges whether to meet default executive condition, RN judges that whether DeNB has distributed to whole RB the PDSCH of oneself, and the PDSCH of oneself and the R-PDCCH of oneself overlapping on one or more RB.If so, turn to step S1110, otherwise turn to step S1114.
Step S1110, RN calculates according to the symbol before the primary sign of PDSCH the descending interference level that oneself Un mouth is subject to.Be symbol 3 owing to having set in advance the primary sign of PDSCH, therefore the descending interference level that RN is subject to according to the one or more Un mouths that calculate oneself in symbol 0,1,2.
Step S1112, the descending interference level that RN is subject to the Un mouth of DeNB report oneself, wherein, can comprise frequency location, time location and interference level.
Step S1114, flow process finishes.
If the present embodiment is all carried out the in the situation that of "Yes", taking the primary sign of PDSCH as symbol 3, in the search volume of the R-PDCCH of RN on first time slot, can find one's own R-PDCCH, DeNB only dispatches the PDSCH of a RN and whole RB is distributed to this RN, to make, the PDSCH of this RN and the R-PDCCH of this RN are overlapping on one or more RB to be illustrated as example, the method that the present embodiment proposes can be inferred comparatively exactly and the descending interference level that the Un mouth of RN is subject to, calculate the interference level that each RB of full bandwidth is subject to, be conducive to DeNB and evade possible interference, selecting suitable resource is RN service.
Preferred embodiment three
The flow process of the method that the present embodiment provides as shown in figure 12, comprises that step S1202 is to step S1214.
Step S1202, DeNB is to primary sign, the search volume of R-PDCCH and the interleaving mode of R-PDCCH of RN configuration PDSCH.
Step S1204, DeNB only dispatches the PDSCH of a RN and whole RB is distributed to this RN, to make the PDSCH of this RN and the R-PDCCH of this RN overlapping on one or more RB.Now, DeNB only dispatches this RN and does not dispatch other RN, does not also dispatch the UE of oneself service.
Step S1206, finds one's own R-PDCCH in the search volume of the R-PDCCH of RN on first time slot.If found, turn to step S1208, otherwise turn to step S1214.
Step S1208, RN judges that whether DeNB has distributed to whole RB the PDSCH of oneself, and the PDSCH of oneself and the R-PDCCH of oneself overlapping on one or more RB.If so, turn to step S1210, otherwise turn to step S1214.
Step S1210, RN calculates according to the symbol before the primary sign of the R-PDCCH on first time slot the descending interference level that oneself Un mouth is subject to.Because the primary sign of the R-PDCCH on first time slot is symbol 3, therefore the descending interference level that RN is subject to according to the one or more Un mouths that calculate oneself in symbol 0,1,2.
Step S1212, the descending interference level that RN is subject to the Un mouth of DeNB report oneself, comprising frequency location, time location and interference level.
Step S1214, flow process finishes.
If the present embodiment is all carried out the in the situation that of "Yes", in the search volume of the R-PDCCH of RN on first time slot, can find one's own R-PDCCH, DeNB only dispatches the PDSCH of a RN and whole RB is distributed to this RN, to make, the PDSCH of this RN and the R-PDCCH of this RN are overlapping on one or more RB to be illustrated as example, , the method that the present embodiment proposes can be inferred comparatively exactly and the descending interference level that the Un mouth of RN is subject to, for example, calculate the interference that part RB is subject to, be conducive to DeNB and evade possible interference, selecting suitable resource is RN service.
Preferred embodiment four
The flow process of the method that this embodiment provides can be as shown in figure 13, comprises that step S1302 is to step S1314.
Step S1302, DeNB is to primary sign, the search volume of R-PDCCH and the cross interleave mode of R-PDCCH of RN configuration PDSCH.Turn to afterwards step S1304.
Step S1304, DeNB only dispatches the PDSCH of a RN and whole RB is distributed to this RN, to make the PDSCH of this RN and the R-PDCCH of this RN overlapping on one or more RB.Now, DeNB only dispatches this RN and does not dispatch other RN, does not also dispatch the UE of oneself service.
Step S1306, finds one's own R-PDCCH in the search volume of the R-PDCCH of RN on first time slot.If found, turn to step S1308, otherwise turn to step S1314.
Step S1308, RN investigates DeNB, and whether whole RB to have been distributed to own PDSCH and the PDSCH of oneself and the R-PDCCH of oneself overlapping on one or more RB.If so, turn to step S1310, otherwise turn to step S1314.
Step S1310, RN calculates according to those REG that do not taken by R-PDCCH on those RB at R-PDCCH place the descending interference level that oneself Un mouth is subject to.As shown in Figure 3, RN can calculate the descending interference level that oneself Un mouth is subject to according to REG9 and REG10.In the time realizing, the method only just can work in the time that R-PDCCH is cross interleave type.
Step S1312, the descending interference level that RN is subject to the Un mouth of DeNB report oneself, wherein, comprises frequency location, time location and interference level.
Step S1314, flow process finishes.
If the present embodiment is all carried out the in the situation that of "Yes", the interleaving mode of the R-PDCCH of this RN is that PDSCH and whole RB that in the search volume of cross interleave, the R-PDCCH of RN on first time slot, can find one's own R-PDCCH, DeNB only to dispatch a RN distribute to this RN, to make, the PDSCH of this RN and the R-PDCCH of this RN are overlapping on one or more RB to be illustrated as example, can infer comparatively exactly and the descending interference level that the Un mouth of RN is subject to, for example, calculate the interference that part RB is subject to.Be conducive to like this DeNB and evade possible interference, selecting suitable resource is RN service.
As can be seen from the above description, the present invention has realized following technique effect:
The embodiment of the present invention is utilized a kind of new method to measure RN and is received descending interference level, solve the deficiency of measuring RN in correlation technique and receive the method for descending interference level, determine descending interference level by the resource information of PDSCH and/or R-PDCCH, avoid the impact of phase mutual interference, and promoted the accuracy rate of measuring.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method that detects descending interference, is characterized in that, comprising:
Via node is determined the descending interference level of the wireless connections mouth of described via node according to the resource information corresponding to relaying Physical Downlink Control Channel R-PDCCH of the Physical Downlink Shared Channel PDSCH of described via node and/or described via node.
2. method according to claim 1, is characterized in that, via node determines that according to resource information corresponding to the R-PDCCH of the PDSCH of described via node and/or described via node the descending interference level of the wireless connections mouth of described via node comprises:
Described via node is determined the described PDSCH of handle whole resource block assignments in base station to described via node;
Described via node is determined the descending interference level of the wireless connections mouth of described via node according to described PDSCH and/or resource information corresponding to described R-PDCCH.
3. method according to claim 1, is characterized in that, via node determines that according to resource information corresponding to the R-PDCCH of the PDSCH of described via node and/or described via node the descending interference level of the wireless connections mouth of described via node comprises:
Described via node is determined the described PDSCH of handle whole resource block assignments in base station to described via node;
Described via node determines that the described PDSCH of described via node and the described R-PDCCH of described via node have overlapping on Resource Block;
Described via node is determined the descending interference level of the wireless connections mouth of described via node according to described PDSCH and/or resource information corresponding to described R-PDCCH.
4. according to the method in any one of claims 1 to 3, it is characterized in that, it is one of following that described resource information at least comprises: unappropriated symbol power information on channel, unappropriated Resource Block power information on channel.
5. method according to claim 4, is characterized in that, determines that according to described PDSCH and/or resource information corresponding to described R-PDCCH the descending interference level of the wireless connections mouth of described via node comprises:
Described via node determines according to the symbol power information before the primary sign of described PDSCH the descending interference level that described wireless connections mouth is subject to;
Described via node determines according to the symbol power information before the primary sign of the R-PDCCH on first time slot the descending interference level that described wireless connections mouth is subject to; Or,
Described via node determines according to the resource unit group power information not taken by described R-PDCCH on the Resource Block at described R-PDCCH place the descending interference level that described wireless connections mouth is received.
6. a device that detects descending interference, is characterized in that, comprising:
Determination module, for determining the descending interference level of the wireless connections mouth of described via node according to the resource information corresponding to relaying Physical Downlink Control Channel R-PDCCH of the Physical Downlink Shared Channel PDSCH of described via node and/or described via node.
7. device according to claim 6, is characterized in that, described determination module comprises:
The first determining unit, for determining the described PDSCH of handle whole resource block assignments in base station to described via node;
The second determining unit, for determining the descending interference level of the wireless connections mouth of described via node according to described PDSCH and/or resource information corresponding to described R-PDCCH.
8. device according to claim 6, is characterized in that, described determination module comprises:
The 3rd determining unit, for determining the described PDSCH of handle whole resource block assignments in base station to described via node;
The 4th determining unit, for determining that the described PDSCH of described via node and the described R-PDCCH of described via node have overlapping on Resource Block;
The 5th determining unit, for determining the descending interference level of the wireless connections mouth of described via node according to described PDSCH and/or resource information corresponding to described R-PDCCH.
9. according to the method described in any one in claim 6 to 8, it is characterized in that, described determination module also comprises:
First determines subelement, for determining according to the symbol power information before the primary sign of described PDSCH the descending interference level that described wireless connections mouth is subject to;
Second determines subelement, for determining according to the symbol power information before the primary sign of the R-PDCCH on first time slot the descending interference level that described wireless connections mouth is subject to; Or,
The 3rd determines subelement, for determining according to the resource unit group power information not taken by described R-PDCCH on the Resource Block at described R-PDCCH place the descending interference level that described wireless connections mouth is subject to.
10. a via node, is characterized in that, comprising: the device of the descending interference of detection in claim 6 to 9 described in any one.
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| CN201210472234.7A CN103841586A (en) | 2012-11-20 | 2012-11-20 | Method and apparatus for detecting downlink interference, and relay node |
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| CN201210472234.7A CN103841586A (en) | 2012-11-20 | 2012-11-20 | Method and apparatus for detecting downlink interference, and relay node |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686554A (en) * | 2008-09-24 | 2010-03-31 | 中兴通讯股份有限公司 | Method, device and terminal for realizing system scheduling |
| WO2011105726A2 (en) * | 2010-02-23 | 2011-09-01 | Lg Electronics Inc. | Method and user equipment for measuring interference, and method and base station for receiving interference information |
| CN102355689A (en) * | 2011-09-27 | 2012-02-15 | 大唐移动通信设备有限公司 | Terminal interference test realizing method and device |
| CN102638892A (en) * | 2012-03-26 | 2012-08-15 | 电信科学技术研究院 | Method and device for performing resource mapping to E-PDCCHs (enhanced-physical downlink control channels) |
-
2012
- 2012-11-20 CN CN201210472234.7A patent/CN103841586A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686554A (en) * | 2008-09-24 | 2010-03-31 | 中兴通讯股份有限公司 | Method, device and terminal for realizing system scheduling |
| WO2011105726A2 (en) * | 2010-02-23 | 2011-09-01 | Lg Electronics Inc. | Method and user equipment for measuring interference, and method and base station for receiving interference information |
| CN102355689A (en) * | 2011-09-27 | 2012-02-15 | 大唐移动通信设备有限公司 | Terminal interference test realizing method and device |
| CN102638892A (en) * | 2012-03-26 | 2012-08-15 | 电信科学技术研究院 | Method and device for performing resource mapping to E-PDCCHs (enhanced-physical downlink control channels) |
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