CN101917367A - Method for intercell interference coordination of downlink control channel in LTE-Advanced heterogeneous network - Google Patents
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Abstract
The invention discloses a method for intercell interference coordination of a downlink control channel in an LTE-Advanced heterogeneous network, belonging to the technical field of communication. The invention proposes corresponding solutions to the MUE of R8/9 and MUE of R10. For the MUE of R8/9, a method for cleaning two OFDM (Orthogonal Frequency Division Multiplexing) symbols is adopted, thereby greatly reducing interference of HeNB to PDCCH of MUE, and for the interfered MUE of R10, a novel PDCCH repetitive designing method is proposed to substantially avoid interference of the HeNB to the PDCCH of MUE. The invention supports backward compatibility and ensures that the UE of R8/9 can work as usual during interference inhibition, which is very important to 3GPP. The invention is suitable for both a TDD LTE system and an FDD LTE system.
Description
Technical field
The invention belongs to communication technical field, be specifically related in the LTE-Advanced network, macrocell (macro cell) with have a closed user group (close subscriber group, CSG) in the common heterogeneous network of forming in femtocell sub-district (Femtocell), come from femtocell cell base station (Home eNB at what the down control channel (PDCCH) of the user terminal (MUE) of macrocell was subjected to, HeNB) strong interference, the interference minimizing and the inhibition method towards the user terminal (UE) of Release 8/9 (R8/9) and Release10 (R10) of proposition.
Background technology
In order to increase the power system capacity in traditional heterogeneous network, eliminate the dead band, in cellular cell, introduced low power nodes (LPNs), comprise indoor and outdoor Pico cell sub-district (Picocells), femtocell sub-district (Femtocells), via node (Relay nodes) etc.Wherein, femtocell is towards home services, and its base station is also referred to as Home eNodeB, for a closed user group (CSG) service, can effectively increase power system capacity and spectrum efficiency.So-called CSG is meant that the user that HeNB can only allow registration in advance to cross inserts this HeNB, and the user who did not register, and also can't insert this HeNB within the coverage of this HeNB and communicates even be in.Yet, because Femtocell and macro cells channel deployment altogether will constitute serious disturbance at descending Femtocells to MUE, particularly when HeNB can only serve for CSG.Fig. 1 shows MUE and is positioned at the disturbed condition under the scene within the HeNB coverage, and HUE is the user terminal that Home eNodeB is served, and MeNB is the base station of macrocell, and Victim MUE is the MUE that is disturbed.
Point out that in the 61st meeting of nearest 3GPP RAN1 under Macro and the Femto situation that channel is disposed altogether, the situation of serious disturbance is exactly to enter situation within the coverage of Femtocell as MUE.In this case, at the effective interference mitigation technology of the UE of R8/9 for the just so not good effect of the interference that reduces control channel, document [R1-103427 " WF on Identification of Co-channel Problem and Needs in Macro-Femto " RAN1#61 sees reference, May 2010, Montreal.].
For the deployment of Macro and CSG Femtocell, the interference that how to reduce between down control channel (PDCCH) sub-district is an important research contents.Carrying very important information on the PDCCH, comprising the assignment information of ascending resource, power control information, the data-modulated of DSCH Downlink Shared Channel (PDSCH) and information encoded etc.If PDCCH can not correctly translate, will cause the communication of whole uplink and downlink so to have a strong impact on.Yet because PDCCH is distributed on the whole system bandwidth, the randomized method of traditional presence of intercell interference is no longer suitable.List of references [R1-103126, " Enhanced ICIC for control channels to support HetNet ", Huawei.; R1-102350, " Assessment of Rel-8/9techniques available to cope with harsh interference conditions ", Qualcomm Incorporated.; R1-103822, " Enhanced ICIC considerations forHetNet scenarios ", Nokia Siemens Networks, Nokia.; R1-102981, " Considerations on PBCH ICIC for CSG HeNB ", ITRI] some motions in proposed such as time migration, frequency domain is cut apart, relax methods such as CSG constraint and power control, list of references [R1-102350 wherein, " Assessment of Rel-8/9 techniques available to cope with harsh interference conditions ", Qualcomm Incorporated.] in motion assessed these methods and pointed out the excellent of these methods, shortcoming, and reach a conclusion, although certain methods has reduced the serious interference from HeNB to MUE, there is not a kind of method can when reducing interference, solve the problem of MUE channel quality variation in these methods.
In the present invention, we attempt to solve the interference problem of HeNB to the descending PDCCH of MUE, have proposed corresponding solution respectively at the MUE of R8/9 and the MUE of R10.For the MUE of R8/9, we advise using the method that empties 2 OFDM symbols, and for the MUE that is disturbed of R10, have proposed a kind of method of PDCCH design iterations of novelty.
Summary of the invention
The present invention is towards the heterogeneous network of LTE-A, promptly when the coexistence of the femtocell sub-district of macrocell and support closed user group, when having proposed within the coverage that user terminal when macrocell is in Home eNodeB, effectively solve the method for the Inter-Cell Interference Coordination (ICIC) of down control channel.
The technical scheme that the present invention takes is:
Step 1: the macrocell user terminal that identification is disturbed;
Step 2: the base station of macrocell is the time domain schedule information of ' V ' subframe to the time domain schedule information of the macrocell user terminal that the broadcasting of femtocell cell base station is disturbed, and will consider simultaneously and carry out the required time enough lead of information interactive process between MeNB and the HeNB;
Step 3: learn after the schedule information and attribute of the macrocell user terminal that is disturbed, if the macrocell user terminal that is disturbed four is provided with ' V ' sub-frame formats when only being Release 8/9 or Release 8/9 and Release 10 coexistences set by step, if the macrocell user terminal that is disturbed only is that 10 of Release carry out step 5 setting ' V ' sub-frame formats;
Step 4: the value of the PCFICH of the base station of macrocell and femtocell cell base station is 3, and its PDCCH of the base station assigns of macrocell takies preceding 3 OFDM symbols fully, i.e. symbol# 1, #2 and #3; It is symbol# 1 that the femtocell cell base station distributes its PDCCH to take first OFDM symbol, is that symbol# 2 and #3 empty with second and the 3rd OFDM symbol;
Step 5: when the interference of the PDSCH that comes from the femtocell cell base station can be tolerated, on descending ' V ' subframe, the PCFICH of the base station of macrocell is 3, and the PCFICH of femtocell cell base station is 1, distribute the PDCCH of the base station of macrocell to take preceding 3 OFDM symbols promptly from symbol# 1 to #3, and arrange symbol# 2 to have identical PDCCH with #3 and symbol# 1, the PDCCH that is about on the symbol# 1 respectively repeats once on symbol# 2 and #3; It is symbol# 1 that the PDCCH of distribution femtocell cell base station takies 1 OFDM symbol; When the interference of the PDSCH that comes from the femtocell cell base station is very big, on descending ' V ' subframe, the value of the PCFICH of the base station of macrocell and femtocell cell base station is 3, the PDCCH of the base station of distribution macrocell takes preceding 3 OFDM symbols and 3 OFDM symbols have identical PDCCH, it is symbol# 1 that the PDCCH of femtocell cell base station takies first OFDM symbol, is that symbol# 2 and #3 empty with second and the 3rd OFDM symbol.
Advantage of the present invention can reduce following 4 points:
1) the present invention supports backwards compatibility, promptly uses the present invention, the UE of R8/9 can be when suppress disturbing operate as normal, this is very important for 3GPP.
2) in order to support the UE of R8/9, the present invention proposes a kind of method that empties 2 OFDM symbols of novelty, greatly reduced the interference of HeNB to the PDCCH of MUE.
3) in order to support the UE of R10 better, the present invention proposes a kind of method of PDCCH design iterations of novelty, can avoid coming from the interference of HeNB basically fully to the PDCCH of MUE.
4) the present invention had both gone for TDD LTE system, also was applicable to FDD LTE system.
Description of drawings
Fig. 1. the interference scene schematic diagram when MUE is positioned within the coverage of HeNB;
Fig. 2. the descending sub frame scheduling graph;
Fig. 3. be the form of descending ' V ' subframe of proposing at the MUE of R8/9 (a), (b) be descending ' V ' sub-frame formats of HeNB;
Fig. 4. when the interference of PDSCH can be tolerated, be the form of descending ' V ' subframe of proposing at the MUE of R10 (a), (b) be descending ' V ' sub-frame formats of HeNB;
Fig. 5. when the interference of PDSCH is very big, be the form of descending ' V ' subframe of proposing of the MUE at R10 (a), (b) be descending ' V ' sub-frame formats of HeNB;
Embodiment
In the present invention, at the serious interference problem of down control channel in the heterogeneous network of LTE-A of Macro+Femto, we have proposed the method at the Inter-Cell Interference Coordination of the PDCCH of the UE of R8/9 and R10 respectively.Below in conjunction with accompanying drawing the present invention is described further.
One, disturbed the detection of MUE:
In Macro and the Femto scene that channel is disposed altogether, how to discern that to be disturbed MUE (victim MUE) be a basic problem, at list of references [R1-103846, " HeNB eICIC for HetNet ", picoChip Designs, Kyocera] in showed that the two kinds of method that identifies victim MUE: HeNB detect the uplink reference signals that comes from MUE and directly send jamming report to MeNB to MeNB report and MUE again, MeNB identifies victim MUE.
Two, the transmission of V subframe
In case MeNB receives the message that comes from victim MUEs, just triggered the process of the ICIC of PDCCH.After having obtained the message of victim MUEs, MeNB is to the time domain schedule information of HeNB broadcasting victim MUEs.Schedule information can be semi-static to reduce signaling consumption.Consider because HeNB does not have X2 interface, so HeNB will have one section time-delay before receiving the message of MeNB, the time enough lead should be considered into.The form of broadcasting as shown in Figure 2, victim MUEs can only be at ' V ' subframe scheduling among the figure, and other MUE can be at all subframe schedulings.
Attention:
● because the coverage of HeNB is very limited, thereby the quantity of victim MUE is also very little, and the quantity of ' V ' subframe is also very limited.
● no matter whether victim MUEs is scheduled, and other MUE will be by normal consistency.
● the message between MeNB and the HeNB can adopt the method in list of references [R1-103048, " Static/Dynamic Home eNB ICIC function ", the Samsung] motion, by the method or the broadcasting by eating dishes without rice or wine of UE alternative routing.
Three, at the inter-cell interference coordination method of the scene PDCCH of CSG HeNB
At victim MUEs is the UE of R8/9 or the UE of R10, and when dispatching victimMUEs on ' V ' subframe, PDCCH will use different forms to reduce or avoid coming from the strong jamming of HeNB.We think that MeNB can identify the character of victim MUEs, promptly are the UE of R8/9 or the UE of R10.
1, on ' V ' subframe, empties the OFDM symbol at R8/9UE
In order to support backwards compatibility, advised a kind of method that on ' V ' subframe, empties the OFDMs symbol here.
Shown in Fig. 3 (a) and (b), for ' V ' subframe, MeNB must distribute its PDCCH to take preceding 3 OFDM symbols fully, i.e. symbol# 1, #2 and #3; Yet for HeNB, it can only distribute its PDCCH to take first OFDM symbol is symbol# 1, and will empty OFDM symbol# 2 and #3.By doing like this, just can significantly reduce the interference that comes from HeNB.
Attention:
● when victim MUEs only is the UE of R8/9, and when being the UE of the UE of R8/9 and R10, all can make in this way.
● the design of such PDCCH occurs over just on ' V ' subframe, and the PDCCH on other subframes needn't design like this.
● although the PDCCH on first symbol of MeNB is disturbed, and symbol# 2 and symbol#3 go up noiseless.
● for MeNB and HeNB, the value of Physical Control Format Indicator Channel (PCFICH) is 3.
● for HeNB, although 2 OFDM symbols have been wasted, consider such ' V ' subframe seldom, therefore this design can not produce appreciable impact to the spectrum efficiency of system.
2, the method for the PDCCH design iterations that proposes at R10 UE
When the interference that A. ought come from the PDSCH of HeNB can be tolerated
When victim MUEs only comprised the UE of R10, in this situation, HeNB and victim MUE may not be the edges that is positioned at macrocell, and perhaps power control has been carried out in HeNB descending.Under this scene, on ' V ' subframe, the PDCCH that we still limit HeNB takies 1 OFDM symbol, i.e. OFDM symbol# 1, and PDSCH can use remaining OFDM symbol.Yet, for fear of the interference that comes from HeNB, we distribute the PDCCH of MeNB to take preceding 3 OFDM symbols, from symbol# 1 to #3, but different with the mapping mode of the PDCCH of present use, the PDCCH that we are distributed on these 3 symbols is identical, promptly in fact the PDCCH on the MeNB only uses 1 OFDM symbol just much of that, but we arrange OFDMsymbol# 2 to have identical PDCCH with #3 and OFDM#1.Like this, victim MUEs just can be that PDCCH deciphered independently by unit with the symbol, and the design of descending ' V ' subframe is as Fig. 4 (a) with (b).By using such method for designing, when the interference of HeNB when not being very strong, victim MUE just can successfully translate PDCCH on first OFDM symbol, but considers the interference between the heterogeneous network, and this situation is rare.Therefore, victim MUE will continue at the 2nd symbol substitution PDCCH, if it can successfully translate PDCCH, then redirect removes to decipher the PDSCH from the 4th sign-on, otherwise, victim MUE will continue to remove to decipher PDCCH at the 3rd symbol, and here, victim MUE also can use the result of the diversity of the 2nd symbol and the 3rd symbol to decipher PDCCH.From top description we as can be seen, victimMUE always has 3 chances and translates PDCCH.The interference of considering the PDSCH that comes from HeNB is not very serious, and we think that victim MUE successfully translates PDCCH in these 3 chances probability is bigger.
Attention:
● for the performance of the victim MUEs that guarantees R10UE, on ' V ' subframe, only dispatch victim MUEs and the normal MUE of R10.Consider that ' V ' sub-frame number is very limited, such scheduling can not produce appreciable impact to the MUE of R8/9.
● such PDCCH form is only applicable to ' V ' subframe, and for other subframes, PDCCH normally shines upon.
● PCFICH should additionally increase by one indicate R10 UE be with the symbol be unit decipher PDCCH or 3 symbols are all received after decipher PDCCH again.
● because ' V ' sub-frame number is very limited, will can not produce appreciable impact to system spectral efficiency.
● here, the PCFICH of MeNB is 3, and the PCFICH of HeNB is 1.
B. when the interference of the PDSCH that comes from HeNB is very big
For this situation, HeNB and victim MUEs are positioned at the edge of macrocell as shown in Figure 1, and at this moment, the interference that comes from the PDSCH of HeNB is very important.In order to address this problem, on descending ' V ' subframe, MeNB still uses above-mentioned PDCCH design iterations principle to shine upon on preceding 3 OFDM symbols, but the design of different PDCCH will be arranged for HeNB.
As Fig. 5 (a) with (b), the PDCCH of HeNB also takes 3 OFDM symbols, is different from normal PDCCH mapping, and symbol# 2 and #3 are empty here.By doing like this, the PDCCH on the MeNB will can not be subjected to coming from the interference of the PDSCH of HeNB on symbol 2 and 3, therefore just can successfully translate PDCCH in the scope of preceding 3 symbols.
Attention:
● because ' V ' sub-frame number is very limited, will can not produce appreciable impact to system spectral efficiency.
● PCFICH should additionally increase by one indicate R10 UE be with the symbol be unit decipher PDCCH or 3 symbols are all received after decipher PDCCH again.
● the PCFICH on MeNB and the HeNB is 3.
● we think that this is a backward compatibility for HUE.
To sum up state institute, the present invention realizes that the method performing step of the Inter-Cell Interference Coordination of descending PDCCH in the heterogeneous network of Macro+Femto can reduce following a few step:
Step 1: the macrocell user terminal that identification is disturbed;
Step 2: the base station of macrocell is the time domain schedule information of ' V ' subframe to the time domain schedule information of the macrocell user terminal that the broadcasting of femtocell cell base station is disturbed, and will consider simultaneously and carry out the required time enough lead of information interactive process between MeNB and the HeNB;
Step 3: learn after the schedule information and attribute of the macrocell user terminal that is disturbed, if the macrocell user terminal that is disturbed four is provided with ' V ' sub-frame formats when only being Release 8/9 or Release 8/9 and Release 10 coexistences set by step, if the macrocell user terminal that is disturbed only is that 10 of Release carry out step 5 setting ' V ' sub-frame formats;
Step 4: the value of the PCFICH of the base station of macrocell and femtocell cell base station is 3, and its PDCCH of the base station assigns of macrocell takies preceding 3 OFDM symbols fully, i.e. symbol# 1, #2 and #3; It is symbol# 1 that the femtocell cell base station distributes its PDCCH to take first OFDM symbol, is that symbol# 2 and #3 empty with second and the 3rd OFDM symbol;
Step 5: when the interference of the PDSCH that comes from the femtocell cell base station can be tolerated, on descending ' V ' subframe, the PCFICH of the base station of macrocell is 3, and the PCFICH of femtocell cell base station is 1, distribute the PDCCH of the base station of macrocell to take preceding 3 OFDM symbols promptly from symbol# 1 to #3, and arrange symbol# 2 to have identical PDCCH with #3 and symbol# 1, it is symbol# 1 that the PDCCH of distribution femtocell cell base station takies 1 OFDM symbol; When the interference of the PDSCH that comes from the femtocell cell base station is very big, on descending ' V ' subframe, the value of the PCFICH of the base station of macrocell and femtocell cell base station is 3, the PDCCH of the base station of distribution macrocell takes preceding 3 OFDM symbols and 3 OFDM symbols have identical PDCCH, it is symbol# 1 that the PDCCH of femtocell cell base station takies first OFDM symbol, is that symbol# 2 and #3 empty with second and the 3rd OFDM symbol.
Claims (6)
1.LTE-Advanced heterogeneous network in the method for Inter-Cell Interference Coordination of down control channel, it is characterized in that comprising:
Step 1, the macrocell user terminal that identification is disturbed;
Step 2, the time domain schedule information of the macrocell user terminal that the base station of macrocell is disturbed to femtocell cell base station broadcasting i.e. the time domain schedule information of ' V ' subframe, will consider simultaneously between the base station of macrocell and the femtocell cell base station and carry out the required time enough lead of information interactive process;
Step 3, learn after the schedule information and attribute of the macrocell user terminal that is disturbed, if the macrocell user terminal that is disturbed four is provided with ' V ' sub-frame formats when only being Release 8/9 or Release 8/9 and Release 10 coexistences set by step, if the macrocell user terminal that is disturbed only is that 10 of Release carry out step 5 setting ' V ' sub-frame formats;
Step 4, the value of the PCFICH of the base station of macrocell and femtocell cell base station is 3, and its PDCCH of the base station assigns of macrocell takies preceding 3 OFDM symbols fully, i.e. symbol#1, #2 and #3; It is symbol#1 that the femtocell cell base station distributes its PDCCH to take first OFDM symbol, is that symbol#2 and #3 empty with second and the 3rd OFDM symbol;
Step 5, when the interference of the PDSCH that comes from the femtocell cell base station can be tolerated, on descending ' V ' subframe, the PCFICH of the base station of macrocell is 3, the PCFICH of femtocell cell base station is 1, distribute the PDCCH of the base station of macrocell to take preceding 3 OFDM symbols promptly from symbol#1 to #3, and arrange symbol#2 to have identical PDCCH with #3 and symbol#1, soon the PDCCH on the symbol#1 respectively repeats once on symbol#2 and #3; It is symbol#1 that the PDCCH of distribution femtocell cell base station takies 1 OFDM symbol; When the interference of the PDSCH that comes from the femtocell cell base station is very big, on descending ' V ' subframe, the value of the PCFICH of the base station of macrocell and femtocell cell base station is 3, the PDCCH of the base station of distribution macrocell takes preceding 3 OFDM symbols and 3 OFDM symbols have identical PDCCH, it is symbol#1 that the PDCCH of femtocell cell base station takies first OFDM symbol, is that symbol#2 and #3 empty with second and the 3rd OFDM symbol.
2. according to the method for the Inter-Cell Interference Coordination of down control channel in the heterogeneous network of the described LTE-Advanced of claim 1, it is characterized in that: the uplink reference signals that detects the user terminal come from macrocell by the femtocell cell base station in step 1 is discerned the macrocell user terminal that disturbed or the user terminal by macrocell and is sent jamming report to the base station of macrocell and discern the macrocell user terminal that is disturbed.
3. according to the method for the Inter-Cell Interference Coordination of down control channel in the heterogeneous network of the described LTE-Advanced of claim 1, it is characterized in that: carrying out information interaction between the base station of the described macrocell of step 2 and the femtocell cell base station is to realize by the method for user terminal alternative routing or by the broadcasting of eating dishes without rice or wine.
4. according to the method for the Inter-Cell Interference Coordination of down control channel in the heterogeneous network of the described LTE-Advanced of claim 1, it is characterized in that: in the step 5 PCFICH extra increase a user terminal of indicating Release 10 be with the symbol be unit decipher PDCCH or 3 symbols are all received after decipher PDCCH again.
5. according to the method for the Inter-Cell Interference Coordination of down control channel in the heterogeneous network of the described LTE-Advanced of claim 1, it is characterized in that: the macrocell user terminal that is disturbed described in the step 2 is only at ' V ' subframe scheduling, and other macrocell user terminal can both be dispatched in all subframes.
6. according to the method for the Inter-Cell Interference Coordination of down control channel in the heterogeneous network of the described LTE-Advanced of claim 1, it is characterized in that: the described PDCCH form of step 4 and step 5 is only applicable to ' V ' subframe, for other subframes, PDCCH normally shines upon.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050130684A1 (en) * | 2003-11-13 | 2005-06-16 | Samsung Electronics Co., Ltd. | Method for assigning channels based on spatial division multiplexing in an orthogonal frequency division multiplexing system with multiple antennas |
| CN101425989A (en) * | 2007-10-30 | 2009-05-06 | 中兴通讯股份有限公司 | Data transmission method and system used in OFDM system |
| CN101527916A (en) * | 2008-03-05 | 2009-09-09 | 中兴通讯股份有限公司 | Method for multiplexing control channel of relay station in orthogonal frequency division multiplexing system |
-
2010
- 2010-09-06 CN CN 201010272934 patent/CN101917367B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050130684A1 (en) * | 2003-11-13 | 2005-06-16 | Samsung Electronics Co., Ltd. | Method for assigning channels based on spatial division multiplexing in an orthogonal frequency division multiplexing system with multiple antennas |
| CN101425989A (en) * | 2007-10-30 | 2009-05-06 | 中兴通讯股份有限公司 | Data transmission method and system used in OFDM system |
| CN101527916A (en) * | 2008-03-05 | 2009-09-09 | 中兴通讯股份有限公司 | Method for multiplexing control channel of relay station in orthogonal frequency division multiplexing system |
Non-Patent Citations (1)
| Title |
|---|
| MONTREAL: "Considerations on PBCH ICIC for CSG HeNB", 《3GPP TSG-RAN WG1 #61 R1-102981》, 14 May 2010 (2010-05-14) * |
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