CN102118753B - Spectrum reservation and carrier switching method based on micro base station-home base station system - Google Patents
Spectrum reservation and carrier switching method based on micro base station-home base station system Download PDFInfo
- Publication number
- CN102118753B CN102118753B CN200910247728.3A CN200910247728A CN102118753B CN 102118753 B CN102118753 B CN 102118753B CN 200910247728 A CN200910247728 A CN 200910247728A CN 102118753 B CN102118753 B CN 102118753B
- Authority
- CN
- China
- Prior art keywords
- base station
- macro base
- home enodeb
- station user
- carrier wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a spectrum reservation and carrier switching method based on a micro base station-home base station system and belongs to the field of wireless communication. By adopting the distributed dynamic high interference region carrier reservation technology selected based on an HeNB (Home enhanced Node B) carrier, an eNB (eNodeB) is added in the scheme for assistance, so that the system performance is better enhanced, and the spectrum utilization ratio of the system can be improved, and the system is kept stable in the eNB-HeNB dynamic topology network.
Description
Technical field
This invention belongs to wireless communication field, can be applicable to 3GPP Long Term Evolution (Long-Term Evolution, LTE) and LTE enhancement mode (LTE-advanced) etc.Specifically, the problem that this invention solves is selected for carrier wave under macro base station (eNodeB, eNB)-family base station system is autonomous and is disturbed and suppress, and now all nodes in network are selected available carrier wave in spectrum pool (comprising some carrier waves).This invention is to be closed user group (Closed Subscriber Group, CSG) Home eNodeB (HeNB) and design, but also can be applicable in the scene of non-CSG HeNB, now at macro base station user (Macro User Equipment, MUE) and between HeNB and domestic consumer (Home User Equipment, HUE) thereof there is strong jamming.
Background technology
HeNB can be divided into two classes: sealing access and open access.Under open access mechanism, the MUE permission access HeNB near HeNB, better to be served, reduces to disturb, and keeps load balance etc. with other node in network.But under sealing access mechanism, near HeNB MUE cannot access, and if HeNB and MUE use same carrier wave, MUE will be subject to the strong jamming of HeNB.Therefore, the carrier wave of this part MUE should be transferred on other carrier wave, so just can be allowed MUE avoid being subject to strong jamming.
From the angle of network, consider, put at random the position of HeNB, does not coordinate each other.Because the network environment of HeNB is uncertain, be therefore difficult to HeNB system parameters to preset.After HeNB start, can use self-optimizing carrier wave to select.In addition,, because each uses the HeNB of same carrier wave can eNB be produced and be disturbed with eNB in eNB coverage, the number of carriers that therefore need to control HeNB is to prevent that eNB was produced to strong interference.
Channel quality indication report scheme under a kind of multicarrier has been described in the document of 2008E02584DK.In some other data, also there is the autonomous discussion of selecting of pair carrier wave, the distributed control that subcarrier is selected has been discussed, but the situation under eNB-HeNB scene is not discussed, also not have consideration to add the booster action to HeNB after eNB.In ambient interferences matrix (Background Interference Matrix, BIM) method, each HeNB has a BIM, wherein comprises contiguous HeNB to the own and own disturbed condition to contiguous HeNB.In this scheme, judgement and information storage are all distributed, but this scheme also can be used for centralized control.
2008E01915 Fl, Facilitating umbrella wide-area cell supports for local-areadeployment over the air-interface and 2008E01916 FI, the auxiliary method of controlling self-organizing network of eNB has been discussed under HeNB environment in the document of Enabling umbrella wide area cellsupports for spectrum load balancing of local area deployment over the air-interface.This method has comprised signalling interactive process, and the signaling that may exist between HeNB and eNB.Wherein also used Inter-Cell Interference Coordination (inter-cell interference coordination, ICIC) method.Yet these work all do not have to discuss specially under eNB-HeNB dynamic topology network, how effectively to share spendable frequency spectrum.
Summary of the invention
In order to solve problems of the prior art, the invention provides spectrum reservation and carrier exchange method under a kind of macro base station-family base station system, the distributed dynamic high interference region carrier wave reservation techniques of selecting based on HeNB carrier wave, improves the stability of system spectrum utilance keeping system.
For this reason, the present invention is by the following technical solutions: the spectrum reservation under macro base station-family base station system and carrier exchange method, based on a system that comprises macro base station, Home eNodeB, macro base station user and Home eNodeB user, it is characterized in that it comprises the following steps:
1) carrier wave is divided near Home eNodeB near the not spendable carrier wave of the macro base station user spendable carrier wave of macro base station user and Home eNodeB; Each Home eNodeB according to the signal disturbed condition of other Home eNodeB determine it with other Home eNodeB between forbid cochannel information, and this information is sent to macro base station, cochannel table is forbidden in macro base station foundation;
2) if there is Home eNodeB in macro base station user's strong jamming region, and macro base station user can not access to family base station, adjusts carrier wave used, makes non-interference between Home eNodeB and macro base station user;
3) if there is plural Home eNodeB in macro base station user's strong jamming region, and according to forbidding that cochannel table judges that described Home eNodeB forbids cochannel, adjust the macro base station user's who occurs forbidding cochannel Home eNodeB in strong jamming region carrier wave, macro base station user carrier wave used is concentrated near certain some Home eNodeB on the spendable carrier wave of macro base station user;
4), while only having one family base station in some macro base station users' strong jamming region, the carrier wave of adjusting macro base station user makes them reuse a carrier wave.
As to the improving and supplementing of technique scheme, the present invention further takes following technical measures or the combination in any of these measures:
Step 2), in, while adjusting carrier wave, adjust macro base station user carrier wave used, the carrier wave phase quadrature that macro base station user and Home eNodeB are used.
Step 2), in, while adjusting carrier wave, adjust Home eNodeB carrier wave used, the carrier wave phase quadrature that macro base station user and Home eNodeB are used.
After Home eNodeB start, measure and read near the spendable carrier information of macro base station user Home eNodeB that is positioned at of corresponding macro base station that macro base station transmits, and using this carrier wave as initial access carrier and set up community;
Macro base station user measures, estimates and determine during they are separately in strong jamming region whether have Home eNodeB, and by report the test to macro base station;
Macro base station receive macro base station user about strong jamming region memory after the report of Home eNodeB, to corresponding Home eNodeB, send near the spendable carrier information of macro base station user Home eNodeB that is positioned at of corresponding Home eNodeB, and with reference to forbidding that cochannel table adjusts the carrier wave of macro base station user and Home eNodeB.
Whether judge in macro base station user's strong jamming region exists the process of Home eNodeB as follows:
1), according to the out-hole run of macro base station and Home eNodeB, set up overheated maximum interference tolerance table;
2) according to the overheated maximum interference tolerance table of the descending Signal to Interference plus Noise Ratio of macro base station user, Home eNodeB, the macro base station user uplink higher than thermal noise that Home eNodeB perceives, disturb to judge in base station user's strong jamming region whether have Home eNodeB; If the descending Signal to Interference plus Noise Ratio of macro base station user does not meet signal to noise ratio requirement, or the macro base station user uplink higher than thermal noise that perceives of Home eNodeB disturbs while being greater than the overheated maximum interference tolerance table of Home eNodeB, conclude that base station user's strong jamming region memory is at Home eNodeB; The macro base station user uplink higher than thermal noise that described Home eNodeB perceives disturbs by macro base station user to be estimated to obtain according to the path loss between Home eNodeB and macro base station user and macro base station user emission power.
Certain Home eNodeB leaves behind certain macro base station user's strong jamming region, when near the remaining capacity of the spendable carrier wave of macro base station user Home eNodeB is during lower than default threshold value, macro base station user's carrier wave is transferred near Home eNodeB on the not spendable carrier wave of macro base station user.
Beneficial effect: the present invention is based on the distributed dynamic high interference region carrier wave reservation techniques that HeNB carrier wave is selected, eNB is joined in scheme, play booster action, improved better systematic function, under eNB-HeNB dynamic topology network, this invention can improve the stability of system spectrum utilance keeping system.
Accompanying drawing explanation
Fig. 1 is strong jamming of the present invention district schematic diagram;
Fig. 2 is the random distribution system schematic of HeNB in eNB coverage of the present invention;
Fig. 3 is that the present invention forbids that cochannel represents intention;
Fig. 4 is MUE_NH_SB reuse scheme schematic diagram of the present invention.
Embodiment
Spectrum reservation under macro base station-family base station system and carrier exchange method, can be divided into three parts: the renewal of eNB-specific-MUE_NH_SB during preparation process, carrier wave selection course, the network operation (corresponding macro base station be positioned near the spendable carrier wave of macro base station user Home eNodeB) information.
(1) preparation process
First carrier wave is divided into two parts: be positioned near the spendable carrier wave of macro base station user (MUE_NH_SB, Serving Band for Macro UE Near HeNB) of HeNB and be positioned near the not spendable carrier wave of macro base station user (Non-MUE_NH_SB) of HeNB.
From HeNB, receive and forbid cochannel information, set up and forbid cochannel table.
(2) carrier wave selection course
The carrier wave adjustment of MUE is based on following principle:
When use forbids that the HeNB of cochannel appears in the strong jamming region of MUE (High InterferenceRegion, HIR), carrier wave used should be converted to the carrier wave that priority is higher, allow the HeNB occurring avoid disturbing.
When MUE is subject to the restriction of certain HeNB, MUE carrier wave used should be concentrated on to certain (or some) carrier wave as far as possible, can increase like this flexibility of spectrum reuse.
Carrier wave is selected signaling and process:
In HeNB carrier wave is selected, MUE_NH_SB is used to a kind of layering signaling mechanism and corresponding process.
In layering signaling mechanism, need ordinary signaling and specific signaling simultaneously, to support the transmission of the carrier wave obligate information under different phase:
Ordinary signaling can be used:
1) current BCH code, by a kind of new information, MUE_NH_SB, introduces certain SIB (SystemInformation Blocks, system information block) or introduces a new SIB;
2) air interface between eNB and HeNB (wireless backhaul interface).
Specific signaling can be used:
1), from a network control unit, as O & M configuration Network Based (as O & M server), HeNB gateway (Gateway, GW) is connected to the gateway of eNB;
2) eNB and HeNB's eats dishes without rice or wine.
Detailed process is as follows:
1) HeNB start;
2) HeNB measures and reads eNB-specific-MUE_NH_SB information;
3) HeNB is that carrier wave is selected in initial access by using eNB-specific-MUE_NH_SB information;
4) HeNB sets up community and sends relevant information (SynchCH, PBCH, RS etc.);
5) MUE measures, estimates and determines their existence of HeNB in HIR separately;
6) MUE sends EHNB_IN_HIR signal to eNB, shows the existence of HeNB in HIR;
7) eNB reports and forbids determining whether that existing HeNB to use forbids cochannel cochannel form from UE;
8) if there is HeNB to use, forbid cochannel, HeNB is converted to MUE_NH_SB by MUE;
9) eNB arranges HeNB-specific-MUE_NH_SB (corresponding Home eNodeB be positioned near the spendable carrier wave of macro base station user Home eNodeB) to HeNB, and this information is sent to HeNB;
10), based on HeNB-specific-MUE_NH_SB and traffic demand, HeNB selects carrier wave (getting rid of the carrier wave that MUE selects).
Wherein HIR adjudicates and is reported as follows:
In eNB and HeNB, eNB (HeNB) out-hole run that can be based on after improving, set up overheated maximum interference tolerance (Maximum Tolerable Interference Over Thermal, MTIOT) table, this table can help the carrier wave of HeNB to select and change the carrier wave of MUE.Particularly, MTIOT can be for:
HeNB under eNB covers not can for eNB bring stronger uplink interference (by eNB broadcast MTIOT, HeNB HUE is measured and Interference Estimation after the use of definite frequency spectrum);
Can be to the up generation strong jamming of HeNB (MTIOT not be broadcasted by HeNB, and MUE will, according to MTIOT and local measurement and estimation, determine the conversion of carrier wave).
MTIOT can be updated periodically, also the renewal of MTIOT can be triggered due to the change of interference environment.Can be from eating dishes without rice or wine (by Broadcast Control Channel (Broadcast Control Channel, B carrier wave H) etc.) or backbone network (using (Flexible Spectrum Usage, FSU) server etc. from flexible spectrum) obtain MTIOT.
The MUE shifting through carrier wave is concentrated on MUE_NH_SB, and near these MUE all occurred that HeNB, particularly HeNB are CSG and MUE does not belong to this CSG, even if thereby receive that from HeNB stronger RSRP also cannot access HeNB.Near the region of forbidding MUE and HeNB cochannel MUE is called as strong jamming district (HIR), as mistake! Do not find Reference source.Shown in.When if HeNB is arranged in the HIR of MUE, MUE will be adjusted to MUE_NH_SB or other frequency range (if MUE_NH_SB cannot meet the demand of MUE).Based on two-way disturbed condition and consider following content, can judge whether HeNB is arranged in HIR:
The descending Signal to Interference plus Noise Ratio of MUE (Signal Interference Noise Ratio, SINR);
The descending SINR of MUE and the interference to HeNB;
The MTIOT of HeNB;
The MUE uplink interference higher than thermal noise that HeNB perceives (being estimated to obtain according to the path loss between HeNB and MUE and MUE transmitting power by MUE).
If the SINR of MUE does not meet SINR requirement, or the MUE uplink interference that is greater than thermal noise that perceives of HeNB is while being greater than MTIOT, and HeNB is considered to HIR.
MUE is reported in to eNB in its HIR and occurs HeNB, and eNB takes corresponding action according to flow status.
Judgement to HeNB in HIR is made by MUE rather than by eNB, because if may need a large amount of signaling consumption (MUE SINE, HeNB MTIOT, the path loss between MUE to HeNB etc.) to eNB feedback information needed.Once find that there is HeNB, be arranged in HIR, MUE will send relevant information (EHNB_IN_HIR has wherein comprised the HeNB information of resetting for flow) to eNB, inform that HeNB has appearred in eNB near MUE, and require to take corresponding interference suppression measure.
When eNB receives after EHNB_IN_HIR, by check and definite MUE_NH_SB in carrier wave, then MUE is adjusted in these carrier waves.
(3) during the network operation, upgrade eNB-specific-MUE_NH_SB information
In order to increase the MUE_NH_SB of HeNB, reuse the degree of freedom, need between MUE_NH, exchange or adjust HeNB-specific-MUE_NH_SB, this be responsible for by eNB, and corresponding information HeNB-specific-MUE_NH_SB needs to upgrade.
Because HeNB appears at the HIR of MUE, so according to specific traffic demand, need to configure a plurality of MUE_NH_SB for MUE, each carrier wave is corresponding with the HIR of some MUE group.In following situation, HeNB can reuse certain MUE_NH_SB, HeNB do not belong to any one HIR or be arranged in certain not with equitant another HIR of HIR, and the MUE_NH_SB of MUE under certain scene distribute comparatively suitable.In other words, the flow distribution of MUE in MUE_NH_SB determined that HeNB reuses the degree of freedom of eNB-specific-MUE_NH_SB.
In following several situations, by neighbor cell measurement, HeNB no longer belongs to the HIR:1 of MUE (being made as MUE1)) HeNB shutdown; 2) MUE has left the coverage of HeNB, no longer include to be between the two better than to disturb etc., and from HeNB, be the reserved enough resources of MUE, MUE1 should be refitted in non-MUE_NH_SB.In order to shift but reduce carrier wave the impact that flow and signaling consumption are brought, only have when the remaining capacity of MUE_NH_SB (representing with Th_capacity) is during lower than certain threshold value, just consideration is transferred to non-MUE_NH_SB by MUE.
MUE periodically monitors two-way disturbed condition, and between MUE and HeNB, disturbs hour, and MUE sends signaling EHNB_OUT_HIR to eNB, shows that HeNB has left HIR.If MUE_NH_SB residual capacity is less than Th_capacity, eNB will be switched to non-MUE_NH_SB from MUE_NH_SB MUE1, or MUE1 is put in bandwidth conversion set (representing with Band_Transfer_set), this is a set of setting up in eNB, and MUE wherein will be excluded from the candidate UE of MUE_NH_SB.In network operation process, while having HeNB in the HIR of increasing MUE, the some or all MUE under following situations in Band_Transfer_set will be switched to non-MUE_NH_SB:
When the quantity of MUE_NH surpasses certain threshold value in Band_Transfer_set, can discharge the carrier wave in eNB-specific-MUE_NH_SB, doing like this can increase HeNB and select the flexibility of original carrier the stability of keeping system, reduces the MUE probability that goes offline.After certain carrier wave is released, eNB-specific-MUE_NH_SB needs to upgrade.
Illustrate process of the present invention below.
System as shown in Figure 2, the HeNB that put at random three positions is in the coverage of macro base station eNB, and there are three high interference regions (HIR), be respectively (MUE_NH1, MUE_NH1), (MUE_NH1, MUE_NH1, MUE_NH3, MUE_NH4) and (MUE_NH5, MUE_NH6).As mistake! Do not find Reference source.Shown in, spectrum pool comprises that 5 continuous carrier waves (CC) distribute for an eNB and the HeNB under eNB covers, and wherein CC1, CC2 identify with MUE_NH_SB, and for MUE_NH1～MUE_NH6, all the other identify with non-MUE_NH_SB.In addition, suppose to have strong jamming between HeNB1 and HeNB2, cannot use same carrier wave.HeNB could determine to forbid cochannel, and for example the BIM scheme of NSN or other method have shown the restriction of interference and QoS, and this information is sent to eNB, by obtaining the information architecture of HeNB1～HeNB3, forbid cochannel matrix (mistake! Do not find Reference source., wherein " 1 " represents to forbid, " 0 " represents to allow).
Suppose that HeNB starts shooting in the following order, HeNB1, HeNB2, HeNB3, whole process is as follows:
1) HeNB1 start;
2) HeNB1 measures and reads eNB-specific-MUE_NH_SB information;
3) HeNB1 is that carrier wave is selected in initial access by using eNB-specific-MUE_NH_SB information;
4) HeNB1 sets up community and sends relevant information (SynchCH, PBCH, RS etc.);
5) MUE1～MUE2 measures, estimates and determines their existence of HeNB1 in HIR separately;
6) MUE1～MUE2 sends EHNB_IN_HIR to eNB;
7) HeNB goes to CC1 by the carrier wave of MUE1～MUE2;
8) eNB arranges HeNB-specific-MUE_NH_SB (CC1) to HeNB1, and this information is sent to HeNB1;
9), based on HeNB-specific-MUE_NH_SB and traffic demand, HeNB1 selects CC.
HeNB2 start
1) HeNB2 measures and reads eNB-specific-MUE_NH_SB information;
2) HeNB2 is that carrier wave is selected in initial access by using eNB-specific-MUE_NH_SB information;
3) HeNB2 sets up community and sends relevant information (SynchCH, PBCH, RS etc.);
4) MUE1～MUE2 measures, estimates and determines their the existing of HeNB2 (detailed description in the next section) in HIR separately;
5) MUE1～MUE2 sends EHNB_IN_HIR to eNB;
6) eNB reports and forbids finding that HeNB1 and HeNB2 ban use of cochannel cochannel form from UE, and they have produced strong jamming to MUE1 and MUE2;
7) first MUE3 and MUE4 are adjusted to CC1, if the off-capacity that CC1 can provide is adjusted to CC2 by one or more UE;
8) eNB arranges HeNB-specific-MUE_NH_SB (CC1 or CC1+CC2) to HeNB2, and this information is sent to HeNB2;
9), based on HeNB-specific-MUE_NH_SB and traffic demand, HeNB2 selects CC.
HeNB3 start
1) HeNB3 measures and reads eNB-specific-MUE_NH_SB information;
2) HeNB3 is that carrier wave is selected in initial access by using eNB-specific-MUE_NH_SB information;
3) HeNB3 sets up community and sends relevant information (SynchCH, PBCH, RS etc.);
4) MUE5～MUE6 measures, estimates and determines their the existing of HeNB3 (detailed description in the next section) in HIR separately;
5) MUE5～MUE6 sends EHNB_IN_HIR to eNB;
6) eNB reports and forbids finding there is no HeNB (can not produce restriction to other HeNB) near HeNB3 cochannel form from UE;
First MUE3 and MUE4 are adjusted to
CC1: if remaining capacity can meet the demand of MUE5～MUE6 in CC1;
CC2: if remaining capacity cannot meet the demand of MUE5～MUE6 in CC1;
Based on aforesaid MUE carrier wave, adjusting principle, MUE5 is adjusted to CC1, MUE6 is adjusted to CC2, is not comparatively ideal scheme, because this will cause HeNB-specific-MUE_NH_SB, is CC1+CC2, the flexibility that this CC that has reduced HeNB3 selects;
ENB arranges eNB-specific-MUE_NH_SB (CC1 or CC1) to HeNB3, and this information is sent to HeNB3;
Based on HeNB-specific-MUE_NH_SB and traffic demand, HeNB3 selects CC.
Lastest imformation eNB-specific-MUE_NH_SB during the network operation
Consider mistake! Do not find Reference source.In system, two HeNB that put are at random in start running status.Due to the appearance of HeNB, MUE1～MUE4 is adjusted on MUE_NH_SB.Suppose that the precedence of adjusting is MUE1-MUE2-MUE3-MUE4, it is upper that initial MUE1 and MUE3 are adjusted to CC1, and MUE2 and MUE4 are adjusted on CC2.As mistake! Do not find Reference source.Shown in, the result that such CC adjusts has limited the configuration of HeNB and HeNB-specific-MUE_NH_SB.On the other hand, if MUE2 and MUE3 clearing house carrier wave, each HeNB only has a CC who is prohibited from using, and this CC that can increase these two HeNB selects the degree of freedom.Following table is the HeNB-specfic MUE_NH_SB under the different flow distribution of MUE:
| MUE_NH1 and MUE_NH3 are used CC1 MUE_NH2 and MUE_NH4 to use CC2 | MUE_NH1 and MUE_NH2 are used CC1 MUE_NH3 and MUE_NH4 to use CC2 | |
| eHNB1-specfic MUE_NH_SB | CC1 and CC2 | CC2 |
| eHNB2-specfic MUE_NH_SB | CC1 and CC2 | CC1 |
After adjusting CC, eNB is configured to CC2 and CC1 respectively the MUE_NH_SB of HeNB1 and HeNB2.
It should be pointed out that the present embodiment just lists expressivity principle of the present invention and effect are described, but not for limiting the present invention.Any person skilled in the art person all can without departing from the spirit and scope of the present invention, modify to above-described embodiment.Therefore, the scope of the present invention, should be as listed in claims.
Claims (2)
1. the spectrum reservation under macro base station-family base station system and carrier exchange method, the system based on comprising macro base station, Home eNodeB, macro base station user and Home eNodeB user, is characterized in that it comprises the following steps:
1) carrier wave is divided near Home eNodeB near the not spendable carrier wave of the macro base station user spendable carrier wave of macro base station user and Home eNodeB; Each Home eNodeB according to the signal disturbed condition of other Home eNodeB determine it with other Home eNodeB between forbid cochannel information, and this information is sent to macro base station, cochannel table is forbidden in macro base station foundation;
2) if there is Home eNodeB in macro base station user's strong jamming region, and macro base station user can not access to family base station, adjusts carrier wave used, makes non-interference between Home eNodeB and macro base station user;
3) if there is plural Home eNodeB in macro base station user's strong jamming region, and according to forbidding that cochannel table judges that described Home eNodeB forbids cochannel, adjust the macro base station user's who occurs forbidding cochannel Home eNodeB in strong jamming region carrier wave, macro base station user carrier wave used is concentrated near certain some Home eNodeB on the spendable carrier wave of macro base station user;
4), while only having one family base station in some macro base station users' strong jamming region, the carrier wave of adjusting macro base station user makes them reuse near the spendable carrier wave of macro base station user one family base station;
Wherein, described step 2) in, while adjusting carrier wave, adjust macro base station user carrier wave used, the carrier wave phase quadrature that macro base station user and Home eNodeB are used;
After Home eNodeB start, measure and read near the spendable carrier information of macro base station user Home eNodeB that is positioned at of corresponding macro base station that macro base station transmits, and using this carrier wave as initial access carrier and set up community;
Macro base station user measures, estimates and determine during they are separately in strong jamming region whether have Home eNodeB, and by report the test to macro base station;
Macro base station receive macro base station user about strong jamming region memory after the report of Home eNodeB, to corresponding Home eNodeB, send near the spendable carrier information of macro base station user Home eNodeB that is positioned at of corresponding Home eNodeB, and with reference to forbidding that cochannel table adjusts the carrier wave of macro base station user and Home eNodeB;
Wherein, judge in macro base station user's strong jamming district and whether exist the process of Home eNodeB to comprise:
1), according to the out-hole run of macro base station and Home eNodeB, set up overheated maximum interference tolerance table;
2) according to the overheated maximum interference tolerance table of the descending Signal to Interference plus Noise Ratio of macro base station user, Home eNodeB, the macro base station user uplink higher than thermal noise that Home eNodeB perceives, disturb to judge in base station user's strong jamming region whether have Home eNodeB; If the descending Signal to Interference plus Noise Ratio of macro base station user does not meet signal to noise ratio requirement, or the macro base station user uplink higher than thermal noise that perceives of Home eNodeB disturbs while being greater than the overheated maximum interference tolerance table of Home eNodeB, conclude that base station user's strong jamming region memory is at Home eNodeB; The macro base station user uplink higher than thermal noise that described Home eNodeB perceives disturbs by macro base station user to be estimated to obtain according to the path loss between Home eNodeB and macro base station user and macro base station user emission power.
2. the spectrum reservation under macro base station-family base station system according to claim 1 and carrier exchange method, it is characterized in that: certain Home eNodeB leaves behind certain macro base station user's strong jamming region, when near the remaining capacity of the spendable carrier wave of macro base station user Home eNodeB is during lower than default threshold value, macro base station user's carrier wave is transferred near Home eNodeB on the not spendable carrier wave of macro base station user.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910247728.3A CN102118753B (en) | 2009-12-30 | 2009-12-30 | Spectrum reservation and carrier switching method based on micro base station-home base station system |
| PCT/CN2010/071520 WO2011079557A1 (en) | 2009-12-30 | 2010-04-02 | Method for spectrum reservation and carrier switch in macro base station – home base station system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910247728.3A CN102118753B (en) | 2009-12-30 | 2009-12-30 | Spectrum reservation and carrier switching method based on micro base station-home base station system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102118753A CN102118753A (en) | 2011-07-06 |
| CN102118753B true CN102118753B (en) | 2014-02-05 |
Family
ID=44217311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910247728.3A Active CN102118753B (en) | 2009-12-30 | 2009-12-30 | Spectrum reservation and carrier switching method based on micro base station-home base station system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102118753B (en) |
| WO (1) | WO2011079557A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102892120B (en) * | 2011-07-22 | 2017-10-03 | 中兴通讯股份有限公司 | The method and system that reduction macro cell terminal is disturbed the up out-of-band radiation in Microcell |
| CN102917461B (en) * | 2011-08-04 | 2016-08-24 | 华为技术有限公司 | Select the method for carrier wave, device and base station |
| CN103391627B (en) * | 2012-05-07 | 2018-01-02 | 上海无线通信研究中心 | Downlink interference elimination method based on carrier wave in hybrid network |
| CN103650558B (en) | 2012-05-11 | 2017-10-17 | 华为技术有限公司 | Carrier selecting method and device |
| CN103634919B (en) * | 2013-12-03 | 2017-01-11 | 北京邮电大学 | Household base station and method for distributing resources for same on basis of interference coordination |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553739A (en) * | 2003-05-26 | 2004-12-08 | 华为技术有限公司 | Method for realizing laminated plot interlayer loading balance |
| CN1985540A (en) * | 2004-07-14 | 2007-06-20 | 诺基亚公司 | Frequency quality criteria for handover in TD-CDMA cellular communication |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2445989A (en) * | 2007-01-23 | 2008-07-30 | Siemens Ag | Controlling interference between first and second communication systems |
| WO2009110565A1 (en) * | 2008-03-05 | 2009-09-11 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication system and network device |
-
2009
- 2009-12-30 CN CN200910247728.3A patent/CN102118753B/en active Active
-
2010
- 2010-04-02 WO PCT/CN2010/071520 patent/WO2011079557A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553739A (en) * | 2003-05-26 | 2004-12-08 | 华为技术有限公司 | Method for realizing laminated plot interlayer loading balance |
| CN1985540A (en) * | 2004-07-14 | 2007-06-20 | 诺基亚公司 | Frequency quality criteria for handover in TD-CDMA cellular communication |
Non-Patent Citations (4)
| Title |
|---|
| Kyocera.Downlink Interference Coordination Assisted by Network between Home eNodeB and Macro eNodeB for LTE-Advanced.《3GPP TSG-RAN WG1 #59,R1-094778,Downlink Interference Coordination Assisted by Network between Home eNodeB and Macro eNodeB for LTE-Advanced》.2009,第1-2节，图1. * |
| NEC 等.Text Proposal for TR36.9xx: Smart Power Control.《3GPP TSG-RAN WG4 Meeting #53,R4-094947,Text Proposal for TR36.9xx: Smart Power Control》.2009,第7.2节. * |
| Resource Coordination and Interference Mitigation between Macrocell and Femtocell;Yong Bai 等;《IEEE Xplore DIGITAL LIBRARY》;20090916;第1401-1405页 * |
| Yong Bai 等.Resource Coordination and Interference Mitigation between Macrocell and Femtocell.《IEEE Xplore DIGITAL LIBRARY》.2009,第1401-1405页. |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011079557A1 (en) | 2011-07-07 |
| CN102118753A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6910409B2 (en) | Mobile communication system and base station equipment | |
| RU2651808C1 (en) | Mobile communication system | |
| Li et al. | Handover schemes in heterogeneous LTE networks: challenges and opportunities | |
| JP6866338B2 (en) | Mobile communication system and base station | |
| Khandekar et al. | LTE-advanced: Heterogeneous networks | |
| US9357545B2 (en) | Mobile communication system | |
| CN101925069B (en) | Disturbance restraining method in wireless cellular network and device | |
| Andrews et al. | Femtocells: Past, present, and future | |
| KR101702372B1 (en) | Interference mitigation by transmitting on a second, lower, power level | |
| US20150029891A1 (en) | Methods for configuring channel state information measurement in a communications system and communications apparatus utilizing the same | |
| JP5393921B2 (en) | Wireless communication system, communication control method, base station, and processor | |
| US20130223271A1 (en) | Method and apparatus for signalling measurement signalling | |
| US20120202540A1 (en) | Method and apparatus for controlling neighbor cell interference | |
| WO2013160036A1 (en) | Eicic carrier aggregation using extension carriers | |
| WO2012081513A1 (en) | Wireless communication system, base station, and control method thereof | |
| CN102404808A (en) | Method for enhanced inter-cell interference cancellation (eICIC) in heterogeneous network, base station and user equipment | |
| CN102118753B (en) | Spectrum reservation and carrier switching method based on micro base station-home base station system | |
| Meng et al. | Virtual cell-based mobility enhancement and performance evaluation in ultra-dense networks | |
| Giambene et al. | Soft frequency reuse schemes for heterogeneous LTE systems | |
| CN103597906A (en) | Node B self-tuning | |
| Yang et al. | Best-fit cell attachment for decoupling DL/UL to promote traffic offloading in HetNets | |
| Behjati et al. | Multi-layer cell deployment strategy for self-organizing LTE-advanced networks | |
| WO2011134531A1 (en) | Carrier management in heterogeneous network environments | |
| Shah et al. | Coordinated inter cell interference avoidance techniques and performance parameters for cross layer interference in LTE-A network | |
| CN102572842B (en) | Between a kind of macro base station and Home eNodeB frequency spectrum exchange method and LTE system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180820 Address after: 201411 No. 2118 Fengxin Road, Fengcheng Town, Fengxian District, Shanghai. Patentee after: SHANGHAI JINUOSHI AUTO PARTS CO.,LTD. Address before: 200050, 32 tower, Zhaofeng building, 1027 Changning Road, Changning District, Shanghai. Patentee before: SHANGHAI RESEARCH CENTER FOR WIRELESS COMMUNICATIONS |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191106 Address after: 211100 Jiangsu Province, Nanjing city Jiangning District Mo Zhou Road No. 9 Patentee after: Nanjing Haihua Information Technology Co.,Ltd. Address before: 201413 1002, room 1, 919 Hai Jie Road, Fengxian District, Shanghai. Patentee before: Shanghai fan Qi Industrial Co.,Ltd. Effective date of registration: 20191106 Address after: 201413 1002, room 1, 919 Hai Jie Road, Fengxian District, Shanghai. Patentee after: Shanghai fan Qi Industrial Co.,Ltd. Address before: 201411 Fengxin Highway 2118, Fengxian District, Shanghai Patentee before: SHANGHAI JINUOSHI AUTO PARTS CO.,LTD. |
|
| TR01 | Transfer of patent right |