CN102014504A - Method for preventing signal interference in hierarchical network and base station - Google Patents
Method for preventing signal interference in hierarchical network and base station Download PDFInfo
- Publication number
- CN102014504A CN102014504A CN2009102368290A CN200910236829A CN102014504A CN 102014504 A CN102014504 A CN 102014504A CN 2009102368290 A CN2009102368290 A CN 2009102368290A CN 200910236829 A CN200910236829 A CN 200910236829A CN 102014504 A CN102014504 A CN 102014504A
- Authority
- CN
- China
- Prior art keywords
- base station
- information
- running time
- frequency resource
- positional information
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 241000209094 Oryza Species 0.000 claims description 12
- 235000007164 Oryza sativa Nutrition 0.000 claims description 12
- 235000021186 dishes Nutrition 0.000 claims description 12
- 235000009566 rice Nutrition 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 3
- 108091028733 RNTP Proteins 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 230000000116 mitigating effect Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000011664 signaling Effects 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 4
- 230000006855 networking Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 241000931705 Cicada Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/20—Interfaces between hierarchically similar devices between access points
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method for preventing signal interference in a hierarchical network and a base station. The method comprises the following steps that a first base station obtains UE the position information of (User Equipment) attributed to the first base station and a second base station relative to the first base station; the first base station obtains the time frequency resource information of the second base station; the first base station dispatches a time frequency resource adopted when signals are transmitted to the UE and the second base station according to the time frequency resource information and the position information of the second base station and the position information of the UE; and the first base station transmits the signals to the UE and the second base station respectively on the UE and the time frequency resource of the second base station by adopting wave beam formation according to the position information of the UE and the second base station. The invention can avoid interference in a combining way of wave beam formation and time frequency resource dispatch.
Description
Technical field
The present invention relates to mobile communication technology, method and the base station of avoiding signal to disturb in particularly a kind of hierarchical network.
Background technology
In mobile communications network, along with growing requirement to data speed and covering, traditional provides the method for access can not meet the demands with macro base station, adopt cell splitting, and can be good at addressing this is that at hot zones or some lower powered base stations of indoor deployment (Home/Pico/Femto/Relay, family base station/Pico cell formula base station/femtocell formula base station/midsequent base station).This lower powered base station is a kind of base station equipment that is applied under family's indoor environment, working environment or other the little overlay environment, can make operator that high data rate, attractive business more cheaply are provided more.
Fig. 1 is a layering networking schematic diagram, with Home eNB (family evolution base station) is example, distinguish in order to represent among the figure, UE under the base station is designated MUE (Marco UE), Home eNB is designated HeNB, UE under the HeNB is designated HUE (Home UE), and then the basic structure of layering networking as shown in the figure.From the structure of top hierarchical network as can be seen, hierarchical network, there are two kinds of main interference types from the direction of propagation:
Descending interference is descending: that is to say the descending interference that always can be subjected in Marco UE and Home UE (family subscriber equipment) reception from Marco eNB (grand evolution base station) and Home eNB (family evolution base station).
Uplink interference is up: that is to say the uplink interference that always can be subjected in Marco eNB and Home eNB reception from Marco UE and Home UE.
The method that existing interference is avoided mainly be from the angle that running time-frequency resource is divided and power is controlled disturb avoid or disturb alleviate, its major programme is as follows:
1, the mode by static state/semi-static FDM realizes disturbing and avoids:
Fig. 2 is static state/semi-static FDM (Frequency Division Multiplexing, frequency division multiplexing) frequency diagram is avoided in interference, as shown in the figure, by distributing different running time-frequency resources with Home eNB (being expressed as HeNB among the figure) for Marco eNB (being expressed as MeNB among the figure), make Marco eNB take different running time-frequency resources with UE among the HeNB, thus avoiding of realizing disturbing.
The advantage of this scheme is to realize simply, but its deficiency is: resource utilization is lower.
2, the method by power control realizes alleviating of interference:
Mutual by between Marco eNB and the HeNB, perhaps the measurement of Radio Link obtain corresponding on/information of following property interference, thereby method by power control, adjust the method for the reflection power of Marco eNB or HeNB and carry out alleviating of descending interference, and the transmitting power of adjustment UE realizes alleviating of uplink interference.
The advantage of this method is to have versatility, but its deficiency is: this is a kind of method of passive interference mitigation, simultaneously can't guaranteed performance.
3, the mode of FDM+ power configuration:
Fig. 3 avoids frequency diagram with interference mitigation for the interference of FDM+ power configuration, as shown in the figure, by the running time-frequency resource that to be Marco eNB different with the HeNB configuration and the grade of the transmitting power on different running time-frequency resources, thereby realize avoiding and alleviating of descending interference.
This method is a kind of improved procedure with respect to the mode of static state/semi-static FDM, but its deficiency is: the lower problem of FDM own resources utilization is still arranged.
4, dynamic FDM+ICIC (Inter-Cell Interference Coordinate, Inter-Cell Interference Coordination):
Mutual by between Marco eNB and the HeNB, the perhaps method of the measurement of Radio Link is known the disturbance regime on each running time-frequency resource of other sub-district, by the method for scheduling and power control, realizes alleviating and avoiding of interference.
This method is a kind of improved procedure with respect to the mode of static state/semi-static FDM, but its deficiency is: further do not utilize avoiding that the spatial domain disturbs, interference mitigation and the performance avoided are subject to the time delay of Signalling exchange in the ICIC process and the cycle of measurement simultaneously.
Summary of the invention
Technical problem solved by the invention has been to provide method and the base station of avoiding signal to disturb in a kind of hierarchical network.
The method of avoiding signal to disturb in a kind of hierarchical network is provided in the embodiment of the invention, has comprised the steps:
First base station obtains user equipment (UE) and second base station positional information with respect to first base station, and described UE is the UE that belongs to first base station;
First base station obtains the running time-frequency resource information of second base station;
The running time-frequency resource that first base station is adopted when the UE and second base station transmit signals according to the positional information scheduling of the running time-frequency resource information of second base station and the UE and second base station;
First base station according to the positional information of the UE and second base station adopt wave beam forming respectively on the running time-frequency resource of the UE and second base station to the UE and second base station transmit signals.
A kind of base station is provided in the embodiment of the invention, has comprised:
The position acquisition module is used for obtaining the positional information of other base stations of UE and hierarchical network with respect to this base station, and described UE is the UE that belongs to this base station;
The time-frequency acquisition module is used for obtaining the running time-frequency resource information of other base stations of hierarchical network;
The scheduling of resource module, the running time-frequency resource that is adopted when being used for other base station transmit signals in UE and hierarchical network of positional information scheduling according to the running time-frequency resource information of other base stations of hierarchical network and positional information and UE;
Sending module is used for positional information according to other base stations of UE and hierarchical network and adopts wave beam forming other base station transmit signals in UE and hierarchical network on the running time-frequency resource of other base stations in UE and hierarchical network respectively.
Beneficial effect of the present invention is as follows:
Owing in the invention process, consider the situation that the base station relative position is relatively more fixing, carry out based on the base station directional information that the spatial domain disturbs avoid the time, not only obtain subordinate's the UE and the positional information of other base stations, also obtain the running time-frequency resource information of other base stations; And according to the running time-frequency resource information and the positional information of other base stations, and the positional information of UE is dispatched the running time-frequency resource that is adopted when UE and other base station transmit signals; Simultaneously, also according to the positional information of UE and other base stations adopt wave beam forming respectively on the running time-frequency resource of UE and other base stations to UE and other base station transmit signals, avoid thereby realized disturbing, realized further to utilize avoiding that the spatial domain disturbs by the mode of wave beam forming and running time-frequency resource scheduling combination.
Description of drawings
Fig. 1 is a layering networking schematic diagram in the background technology;
Fig. 2 avoids frequency diagram for the interference of static state/semi-static FDM in the background technology;
Fig. 3 avoids frequency diagram with interference mitigation for the interference of FDM+ power configuration in the background technology;
The method implementing procedure schematic diagram of Fig. 4 for avoiding signal to disturb in the hierarchical network in the embodiment of the invention;
Fig. 5 is an interference avoidance scheme schematic diagram in spatial domain in the embodiment of the invention;
Fig. 6 is an architecture of base station schematic diagram in the embodiment of the invention.
Embodiment
The technical scheme that prior art adopts mainly is to have provided the scheme of avoiding with interference mitigation of disturbing from running time-frequency resource and power control angle, consider that following base station always adopts the technology of many antennas, the technical scheme that provides in the embodiment of the invention is by avoiding that disturb in the spatial domain, obviously, this programme is a kind ofly can effectively strengthen the scheme avoid effect of disturbing.Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
The method implementing procedure schematic diagram of Fig. 4 for avoiding signal to disturb in the hierarchical network as shown in the figure, can comprise the steps: when avoiding signal to disturb
The running time-frequency resource that step 403, first base station are adopted when the UE and second base station transmit signals according to the positional information scheduling of the running time-frequency resource information of second base station and the UE and second base station;
In the enforcement, step 401 there is no inevitable sequential requirement with step 402.
In step 402, by the statistics of each sub-district oneself for last/down time-frequency occupation condition or disturbance regime, can be simultaneously with on/statistical information of down time-frequency occupation condition or disturbance regime passes to other sub-district alternately by the minizone, user when scheduling in each sub-district is by the different running time-frequency resource of distribution, thus the coordination of disturbing.At LTE (Long Term Evolution, Long Term Evolution) ICIC (the Inter-Cell Interference Coordinate of minizone in, Inter-Cell Interference Coordination) relevant information mainly is to transmit by X2 interface alternately, in 3GPP TS 36.423, provided about the load information interaction of minizone and described, wherein mainly comprised information as shown in the table.
The channel information that the wave beam forming technology that adopts in step 404 channel information that to be the base station feed back up according to terminal or base station estimate, on each physical antenna of making a start, introduced different weighted values, the signal that is transmitted into each user can be concentrated in the narrower beam area.On the one hand can strengthen user's received signal to noise ratio, on the other hand,, also can reduce the interference of other users outside this direction because the concentration of energy of emission is within a narrower orientation angle.Receiving terminal is separated timing, regard weighted different on the physical antenna part of channel variation as, the fading channel (comprising the actual channel fading and the influence of weighting figuration) of the equivalence that then can use the same user dedicated reference symbols of handling through figuration once to estimate the user to be experienced.
By the principle of technical scheme provided by the invention as can be known, the interference that is not limited between macro base station and the low power base station is avoided, and equally also can be applied between macro base station and the macro base station, the interference between low power base station and the low power base station, between macro base station and the low power base station etc. avoids.Be that macro base station, second base station are that low power base station is that example has provided implementation mainly below with first base station.
Fig. 5 is a spatial domain interference avoidance scheme schematic diagram.For the convenience of describing, the running time-frequency resource of hypothesis Marco eNB is f among the figure, the running time-frequency resource of Home eNB 1 (being illustrated as HeNB1) is f1, the running time-frequency resource of Home eNB 2 (being illustrated as HeNB2) is f2, and wherein the running time-frequency resource f2 of the running time-frequency resource f1 of Home eNB 1 and Home eNB 2 can be the same or different.What wherein f-f1 represented is other running time-frequency resource that does not comprise the f1 running time-frequency resource, and what f-f2 represented is other running time-frequency resource that does not comprise the f2 running time-frequency resource.
In the enforcement, the situation that Marco eNB takies according to the running time-frequency resource with respect to the positional information of Marco eNB and HeNB of Marco UE and HeNB, Marco eNB adopts the mode of wave beam forming and running time-frequency resource scheduling associating to dispatch Marco UE, avoids thereby realize disturbing.MUE among the figure (Marco UE) is meant the UE that belongs to Marco eNB, and HUE (Home UE) is meant the UE that belongs to HeNB.
In the enforcement, positional information comprises direction and coverage, thereby determines the scope of a direction.That is, positional information can comprise one of following information or its combination: geographical coordinate, coverage, orientation angle, channel information, PMI (Precooding matrix indicator, pre-coding matrix information).Concrete, positional information can for:
1), geographical coordinate and/or coverage;
2), orientation angle and/or coverage;
3), channel information etc., for example PMI that can carry out the estimation of the angle of arrival and represent directional information according to channel information.
In the enforcement, when obtaining second base station in first base station, can comprise with respect to the positional information of first base station:
Dispose by Operation and Maintenance and to obtain positional information; Or, obtain positional information alternately by S1 or X2 interface and second base station; Or positional information is obtained in measurement by eating dishes without rice or wine.
Concrete, positional information or the information relevant with the position can obtain by the networking side by calculating the parameter of positional information, also can obtain by the method for eating dishes without rice or wine to measure, and its mode can be divided into following several:
1), dispose by Operation and Maintenance: its positional information can be geographical coordinate and coverage.
2), mutual by S1 or X2 interface: its positional information can be any one in above-mentioned three kinds of positional informations, and wherein for relay, the Signalling exchange between its base station is always undertaken by wireless channel, and its information is by the Channel Transmission of eating dishes without rice or wine.
3), eat dishes without rice or wine to measure: its positional information can be orientation angle and coverage or channel information etc.
4), implement, when being the Relay base station, can estimate to obtain positional information according to the angle of arrival by after the relay upward signal is measured in second base station; Or, can obtain positional information by descending channel information and/or the PMI that directional information is carried in measurement, for example obtain by broadband P MI.
Concrete, for the relay base station, its mode can be divided into following several:
A), its positional information macro base station can angle of arrival estimation approach obtains by the relay upward signal is measured, if its uplink signal strength surpasses certain intensity simultaneously, needs to consider that its direction is disturbed avoids,
B) or measure descending channel information etc., direct feedback channel information is perhaps by calculating mode of carrying the PMI of angle information of feedback.
By foregoing description as can be known, Marco eNB need be known the positional information of HeNB with respect to Marco eNB, can obtain by the Signalling exchange between Marco eNB and the HeNB for this directional information, concrete directional information can be the angle information of HeNB with respect to Marco eNB, or the geographical location information of HeNB, thereby Marco eNB can be known the directional information of current HeNB by calculating.Simultaneously have a mutual low power base station of wireless channel for Relay is this, can measure its angle of arrival or feed back one by upward signal can be by calculating the out of Memory parameter that obtains.For example: PMI information or carry the channel information of directional information.
In the enforcement, when obtaining the running time-frequency resource information of second base station in first base station, can comprise:
Obtain the running time-frequency resource information of second base station by the network terminal configuration information;
Or, obtain the running time-frequency resource information of second base station alternately by S1 or X2 interface.
Concrete, when obtaining the running time-frequency resource information of second base station alternately by S1 or X2 interface, can pass through RNTP (Relative Narrowband Tx power indicator, Relative Narrowband TX Power indication) and/or the indication of DL-HII (DL-High Interference Indicator, descending high interference indication) obtain the running time-frequency resource information of second base station.
For dynamic situation, obtain in the running time-frequency resource information of second base station at indicating mode by DL-HII, DL-HII and UL-HII (UL-High Interference Indicator, the indication of up high interference) implication is consistent, all is the frequency resource that needs interference coordination/avoid in the indication current base station.
Concrete, Marco eNB need know that the frequency spectrum of current each HeNB takies situation, the mode of knowing can be as follows:
Adopt static state/semi-static spectrum division, network terminal configuration information or obtain alternately by S1 or X2 interface.
Dynamic frequency is divided, RNTP indication information by HeNB, thereby know the situation that takies of the running time-frequency resource of current HeNB, for this lower powered base station of HeNB, macro base station can obtain its frequency information by network side, and concrete mode can be that S1 or X2 interface are mutual, wherein for relay, Signalling exchange between its base station is always undertaken by wireless channel, and its information is by the Channel Transmission of eating dishes without rice or wine.
In the enforcement, when obtaining the positional information of second base station and running time-frequency resource information in first base station, can also comprise:
Second base station that first base station obtains is pre-configured definite according to coverage planning;
Or, second base station that first base station obtains is the base station of reporting position information and running time-frequency resource information, this base station is at the RS that records first base station (reference signals, reference signal) RSRP of signal (Reference Signal Received Power, when Reference Signal Received Power) intensity surpasses threshold value, reporting position information and running time-frequency resource information.
Concrete, definite mode of the target BS set that above-mentioned positional information and frequency occupation information need transmit can:
1), Operation and Maintenance configuration method of determining range is the pre-configured adjacent base station of coverage planning.
2), low power base station is by measuring macro base station signal strength signal intensity (RSRP), the RSRP intensity that records macro base station RS signal surpasses the macro base station set of certain limit, sends the set of its positional information to corresponding macro base station.Initiatively initiate the information interaction of report position information by low power base station.
In the enforcement, when obtaining Marco UE in first base station, can comprise with respect to the positional information of first base station:
The angle of arrival of measuring Marco UE by upward signal obtains positional information; Or PMI information by MarcoUE feedback and/or the channel information that carries directional information obtain positional information.
Concrete, Marco eNB need be known the directional information of Marco UE with respect to Marco eNB, mainly can measure its angle of arrival by upward signal, and can be by calculating the out of Memory parameter that obtains by one of UE feedback.For example: PMI information or carry the channel information of directional information.
By above-mentioned enforcement, Marco eNB has known the directional information of relevant HeNB and the running time-frequency resource that each relevant HeNB takies, Marco eNB is according to the directional information of Marco UE, determine beam direction, Marco eNB dispatches the down time-frequency resource that Marco UE takies according to the directional information of relevant HeNB and the running time-frequency resource that each relevant HeNB takies simultaneously, if Marco UE is positioned near or the direction of HeNB, Marco eNB need avoid Marco UE and HNB to take identical running time-frequency resource (as MUE2 among Fig. 5 and MUE3) by scheduling so, if Marco UE is away from HeNB or be in outside the direction of HeNB, Marco eNB can dispatch the down time-frequency resource (as the MUE1 among Fig. 5) of the multiplexing current HeNB of Marco UE so.That is, when determining that in first base station Marco UE is positioned at the direction of second base station, can comprise:
Different running time-frequency resources is adopted in first base station when the Marco UE and second base station transmit signals;
Or, reduce the transmitting power that adopt first base station when Marco UE sends signal;
Or, reduce the modulating-coding grade that adopt first base station when Marco UE sends signal.
Then, in force, can be:
1), Marco eNB need know the directional information of low power base station with respect to Marco eNB by network side or the method for eating dishes without rice or wine to measure, and the running time-frequency resource of HeNB situation about taking.
2), Marco eNB is according to the directional information and 1 of Marco UE with respect to Marco eNB) in prior information, the running time-frequency resource of decision Marco UE scheduling and the direction (the perhaps weights of figuration) of wave beam, generally speaking, the beam direction of Marco eNB emission always points to the direction of Marco UE as much as possible.Wherein:
A) if Marco UE is positioned at the direction of low power base station, its interference mitigation or the mode of avoiding can also be as follows:
(1), can avoid adopting same running time-frequency resource by the running time-frequency resource of scheduling Marco UE with low power base station;
(2), also can adopt lower transmitting power by the mode of power control;
(3) thereby, also can adopt lower modulating-coding grade to guarantee the reliability of Radio Link.
B) if Marco UE is positioned at outside the direction of low power base station, its running time-frequency resource can adopt same running time-frequency resource with low power base station so.
Describe with example more below.
Execution mode one:
Present embodiment will be that example describes with the home-use low power base station of HeNB class.Present embodiment has been described the mode that HeNB initiatively sends information, promptly, second base station that first base station obtains is the base station of reporting position information and running time-frequency resource information, when this base station surpasses threshold value in the RSRP intensity of the RS signal that records first base station, and reporting position information and running time-frequency resource information.Can be as follows in then concrete the enforcement:
1), HeNB can be known current channel information by measuring the RS signal of current Marco eNB.
2), HeNB can be according to the RSRP intensity of the RS signal of current all base stations that measure, record of the macro base station set of macro base station RSRP signal strength signal intensity above certain limit, HeNB needs the report of initiatively initiation for current macro base station set, and positional information, coverage information and the frequency of report HeNB itself take situation information.Description in the content of specifying information such as the top technical scheme.
Execution mode two:
It is that example describes that present embodiment will have the mutual low power base station of eating dishes without rice or wine with Relay etc.Present embodiment has been described the mode that Marco eNB obtains positional information and running time-frequency resource information, that is, when obtaining second base station with respect to the positional information of first base station in first base station, measure by eating dishes without rice or wine and to obtain positional information.Can be as follows in then concrete the enforcement:
1), Marco eNB can measure its angle of arrival according to the up wireless signal of current Relay.
2), the Marco eNB of Relay ownership can be according to the mutual acquisition of space interface signaling for Relay's.Coverage and running time-frequency resource take the information of situation.
3), other Marco eNB positional information, coverage and running time-frequency resource that can obtain Relay by the Marco eNB with Relay ownership alternately takies the information of situation.
Execution mode three:
Present embodiment will plan that the low power base station of the Pico class of disposing is that example describes with operator.Present embodiment has been described the mode that Marco eNB obtains positional information and running time-frequency resource information, that is, when obtaining second base station with respect to the positional information of first base station in first base station, dispose by Operation and Maintenance and to obtain positional information; Can be as follows in then concrete the enforcement:
1), Marco eNB can obtain geographical location information and the coverage information of Pico by operation maintenance center.
2), operation maintenance center can be according to the planning situation of network, the geographical location information of Pico and coverage information and running time-frequency resource are taken situation information issue and need disturb the base station of avoiding (adjacent base station).
Based on same inventive concept, a kind of base station also is provided in the embodiment of the invention, because the method for avoiding signal to disturb in this base station principle of dealing with problems and a kind of hierarchical network is similar, so the enforcement of this base station can be referring to the enforcement of method, the repetition part repeats no more.
Fig. 6 is the architecture of base station schematic diagram, as shown in the figure, can comprise in the base station:
Time-frequency acquisition module 602 is used for obtaining the running time-frequency resource information of other base stations of hierarchical network;
Scheduling of resource module 603, the running time-frequency resource that is adopted when being used for other base station transmit signals in UE and hierarchical network of positional information scheduling according to the running time-frequency resource information of other base stations of hierarchical network and positional information and UE;
Sending module 604 is used for positional information according to other base stations of UE and hierarchical network and adopts wave beam forming other base station transmit signals in UE and hierarchical network on the running time-frequency resource of other base stations in UE and hierarchical network respectively.
In the enforcement, when the position acquisition module can be further used for other base stations in obtaining hierarchical network with respect to the positional information of this base station, dispose by Operation and Maintenance and to obtain positional information; Or, obtain positional information alternately by other base stations in S1 or X2 interface and the hierarchical network; Or positional information is obtained in measurement by eating dishes without rice or wine.
In the enforcement, when the position acquisition module can be further used for other base stations in hierarchical network and is the Relay base station, after the relay upward signal is measured, estimate to obtain positional information according to the angle of arrival; Or the descending channel information and/or the PMI that carry directional information by measurement obtain positional information.
In the enforcement, the position acquisition module can be further used for when obtaining UE with respect to the positional information of this base station, and the angle of arrival of measuring UE by upward signal obtains positional information; Or PMI information by UE feedback and/or the channel information that carries directional information obtain positional information.
In the enforcement, the position acquisition module can be further used for obtaining and comprise one of following information or its combination: the positional information of geographical coordinate, coverage, orientation angle, channel information, PMI.
In the enforcement, when the time-frequency acquisition module can be further used for the running time-frequency resource information of other base stations in obtaining hierarchical network, obtain the running time-frequency resource information of second base station by the network terminal configuration information; Or, obtain the running time-frequency resource information of second base station alternately by S1 or X2 interface.
In concrete the enforcement, the time-frequency acquisition module can also be further used for when obtaining the running time-frequency resource information of second base station alternately by S1 or X2 interface, obtains the running time-frequency resource information of second base station by the indication of RNTP and/or descending high interference indication DL-HII.
In the enforcement, when the time-frequency acquisition module can be further used for the positional information of other base stations in obtaining hierarchical network and running time-frequency resource information, other base stations in the hierarchical network that obtains were pre-configured definite according to coverage planning; Or other base stations in the hierarchical network that obtains are base stations of reporting position information and running time-frequency resource information, when this base station surpasses threshold value in the RSRP intensity of the RS signal that records this base station, and reporting position information and running time-frequency resource information.
In the enforcement, sending module can be further used for when determining that UE is arranged in the direction of other base stations of hierarchical network, during other base station transmit signals in UE and hierarchical network, adopts different running time-frequency resources; Or, reduce the transmitting power that when UE sends signal, adopts; Or, reduce the modulating-coding grade that when UE sends signal, adopts; The direction of determining the UE and second base station in first base station not simultaneously, different running time-frequency resources is adopted in first base station when the UE and second base station transmit signals; Or identical running time-frequency resource is adopted in first base station when the UE and second base station transmit signals.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
By above-mentioned execution mode as can be seen, in technical scheme provided by the invention, by other base stations in the acquisition hierarchical network of the network side or the alternant way of eating dishes without rice or wine with respect to the directional information of Marco eNB, and the running time-frequency resource information of this base station, and disturb by the method for wave beam forming and running time-frequency resource scheduling combination and to avoid, thereby can further utilize avoiding that the spatial domain disturbs.
Technical scheme provided by the invention is being disturbed based on the spatial domain when avoiding, consider under the relatively more fixing situation of base station relative position, provide a kind of avoiding method that disturbs based on the spatial domain of base station directional information, also can be based on effective enhancing of the interference avoidance method of FDM simultaneously.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (19)
1. the method for avoiding signal to disturb in the hierarchical network is characterized in that, comprises the steps:
First base station obtains user equipment (UE) and second base station positional information with respect to first base station, and described UE is the UE that belongs to first base station;
First base station obtains the running time-frequency resource information of second base station;
The running time-frequency resource that first base station is adopted when the UE and second base station transmit signals according to the positional information scheduling of the running time-frequency resource information of second base station and the UE and second base station;
First base station according to the positional information of the UE and second base station adopt wave beam forming respectively on the running time-frequency resource of the UE and second base station to the UE and second base station transmit signals.
2. the method for claim 1 is characterized in that, when obtaining second base station with respect to the positional information of first base station in first base station, comprising:
Dispose by Operation and Maintenance and to obtain positional information;
Or, obtain positional information alternately by S1 or X2 interface and second base station;
Or positional information is obtained in measurement by eating dishes without rice or wine.
3. method as claimed in claim 2 is characterized in that, when described second base station is relaying Relay base station,
After the relay upward signal is measured, estimate to obtain positional information according to the angle of arrival;
Or the descending channel information and/or the pre-coding matrix information PMI that carry directional information by measurement obtain positional information.
4. the method for claim 1 is characterized in that, when obtaining UE with respect to the positional information of first base station in first base station, comprising:
The angle of arrival of measuring UE by upward signal obtains positional information;
Or PMI information by UE feedback and/or the channel information that carries directional information obtain positional information.
5. as the arbitrary described method of claim 1 to 4, it is characterized in that described positional information comprises one of following information or its combination: geographical coordinate, coverage, orientation angle, channel information, PMI.
6. the method for claim 1 is characterized in that, when obtaining the running time-frequency resource information of second base station in first base station, comprising:
Obtain the running time-frequency resource information of second base station by the network terminal configuration information;
Or, obtain the running time-frequency resource information of second base station alternately by S1 or X2 interface.
7. method as claimed in claim 6 is characterized in that, when obtaining the running time-frequency resource information of second base station alternately by S1 or X2 interface, obtains the running time-frequency resource information of second base station by the indication of RNTP and/or descending high interference indication DL-HII.
8. the method for claim 1 is characterized in that, when obtaining the positional information of second base station and running time-frequency resource information in first base station, comprising:
Second base station that first base station obtains is pre-configured definite according to coverage planning;
Or second base station that first base station obtains is the base station of reporting position information and running time-frequency resource information, when this base station surpasses threshold value in the Reference Signal Received Power RSRP of the reference signal RS that records first base station intensity, and reporting position information and running time-frequency resource information.
9. as claim 1 to 4 or 6 to 8 arbitrary described methods, it is characterized in that, when determining that in first base station UE is positioned at the direction of second base station, comprising:
Different running time-frequency resources is adopted in first base station when the UE and second base station transmit signals;
Or, reduce the transmitting power that adopt first base station when UE sends signal
Or, reduce the modulating-coding grade that adopt first base station when UE sends signal.
10. as claim 1 to 4 or 6 to 8 arbitrary described methods, it is characterized in that the direction of determining the UE and second base station in first base station comprises not simultaneously:
Different running time-frequency resources is adopted in first base station when the UE and second base station transmit signals;
Or identical running time-frequency resource is adopted in first base station when the UE and second base station transmit signals.
11. a base station is characterized in that, comprising:
The position acquisition module is used for obtaining the positional information of other base stations of UE and hierarchical network with respect to this base station, and described UE is the UE that belongs to this base station;
The time-frequency acquisition module is used for obtaining the running time-frequency resource information of other base stations of hierarchical network;
The scheduling of resource module, the running time-frequency resource that is adopted when being used for other base station transmit signals in UE and hierarchical network of positional information scheduling according to the running time-frequency resource information of other base stations of hierarchical network and positional information and UE;
Sending module is used for positional information according to other base stations of UE and hierarchical network and adopts wave beam forming other base station transmit signals in UE and hierarchical network on the running time-frequency resource of other base stations in UE and hierarchical network respectively.
12. base station as claimed in claim 11 is characterized in that, when the position acquisition module is further used for other base stations in obtaining hierarchical network with respect to the positional information of this base station, disposes by Operation and Maintenance and to obtain positional information; Or, obtain positional information alternately by other base stations in S1 or X2 interface and the hierarchical network; Or positional information is obtained in measurement by eating dishes without rice or wine.
13. base station as claimed in claim 12 is characterized in that, when the position acquisition module is further used for other base stations in hierarchical network and is the Relay base station, after the relay upward signal is measured, estimates to obtain positional information according to the angle of arrival; Or the descending channel information and/or the PMI that carry directional information by measurement obtain positional information.
14. base station as claimed in claim 11 is characterized in that, the position acquisition module is further used for when obtaining UE with respect to the positional information of this base station, and the angle of arrival of measuring UE by upward signal obtains positional information; Or PMI information by UE feedback and/or the channel information that carries directional information obtain positional information.
15., it is characterized in that the position acquisition module is further used for obtaining and comprises one of following information or its combination: the positional information of geographical coordinate, coverage, orientation angle, channel information, PMI as the arbitrary described base station of claim 11 to 14.
16. base station as claimed in claim 11 is characterized in that, when the time-frequency acquisition module is further used for the running time-frequency resource information of other base stations in obtaining hierarchical network, obtains the running time-frequency resource information of second base station by the network terminal configuration information; Or, obtain the running time-frequency resource information of second base station alternately by S1 or X2 interface.
17. base station as claimed in claim 10, it is characterized in that, the time-frequency acquisition module is further used for when obtaining the running time-frequency resource information of second base station alternately by S1 or X2 interface, obtains the running time-frequency resource information of second base station by the indication of RNTP and/or descending high interference indication DL-HII.
18. base station as claimed in claim 11, it is characterized in that, when the time-frequency acquisition module was further used for the positional information of other base stations in obtaining hierarchical network and running time-frequency resource information, other base stations in the hierarchical network that obtains were pre-configured definite according to coverage planning; Or other base stations in the hierarchical network that obtains are base stations of reporting position information and running time-frequency resource information, when this base station surpasses threshold value in the RSRP of the RS that records this base station intensity, and reporting position information and running time-frequency resource information.
19. as claim 11 to 14 or 16 to 18 arbitrary described base stations, it is characterized in that, sending module is further used for when determining that UE is arranged in the direction of other base stations of hierarchical network, during other base station transmit signals in UE and hierarchical network, adopts different running time-frequency resources; Or, reduce the transmitting power that when UE sends signal, adopts; Or, reduce the modulating-coding grade that when UE sends signal, adopts; The direction of determining the UE and second base station in first base station not simultaneously, different running time-frequency resources is adopted in first base station when the UE and second base station transmit signals; Or identical running time-frequency resource is adopted in first base station when the UE and second base station transmit signals.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910236829.0A CN102014504B (en) | 2009-10-30 | 2009-10-30 | Method for preventing signal interference in hierarchical network and base station |
| PCT/CN2010/077938 WO2011050687A1 (en) | 2009-10-30 | 2010-10-21 | Method for avoiding signal interference in hierarchical network and base station thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910236829.0A CN102014504B (en) | 2009-10-30 | 2009-10-30 | Method for preventing signal interference in hierarchical network and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102014504A true CN102014504A (en) | 2011-04-13 |
| CN102014504B CN102014504B (en) | 2014-03-19 |
Family
ID=43844454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910236829.0A Active CN102014504B (en) | 2009-10-30 | 2009-10-30 | Method for preventing signal interference in hierarchical network and base station |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102014504B (en) |
| WO (1) | WO2011050687A1 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355292A (en) * | 2011-08-05 | 2012-02-15 | 中兴通讯股份有限公司 | Method and apparatus for parameter transmission, and method and apparatus for parameter generation |
| WO2012155609A1 (en) * | 2011-08-12 | 2012-11-22 | 中兴通讯股份有限公司 | Method and system for switch processing |
| WO2013034109A1 (en) * | 2011-09-08 | 2013-03-14 | 华为技术有限公司 | Aas-based method, system, ue, and base station for information exchange |
| CN102984710A (en) * | 2012-12-14 | 2013-03-20 | 京信通信系统（中国）有限公司 | Method and device for allocating channel resources |
| CN103477599A (en) * | 2011-04-15 | 2013-12-25 | 华为技术有限公司 | System and method for two-way relaying with beamforming |
| WO2014000548A1 (en) * | 2012-06-27 | 2014-01-03 | 华为技术有限公司 | Method and apparatus for acquirement of available spectrum |
| CN104469688A (en) * | 2013-09-22 | 2015-03-25 | 中国移动通信集团公司 | A pre-coding method, apparatus and system |
| CN104581746A (en) * | 2014-12-02 | 2015-04-29 | 中国船舶重工集团公司第七一六研究所 | Antenna distribution method and antenna system based on LTE (Long Term Evolution) communication standard |
| CN107771405A (en) * | 2015-06-21 | 2018-03-06 | Lg电子株式会社 | Downlink power distribution method and its equipment for the MUST transmission in wireless communication system |
| WO2018059425A1 (en) * | 2016-09-30 | 2018-04-05 | 华为技术有限公司 | Uplink power control method and device |
| CN109076597A (en) * | 2018-08-10 | 2018-12-21 | 北京小米移动软件有限公司 | Data transmission method, device and the storage medium of FBE |
| WO2019014922A1 (en) * | 2017-07-21 | 2019-01-24 | 南通朗恒通信技术有限公司 | Method and device for user and base station for beam forming |
| WO2020103609A1 (en) * | 2018-11-20 | 2020-05-28 | Qualcomm Incorporated | Cross link interference detection systems and methods |
| CN111885719A (en) * | 2017-05-04 | 2020-11-03 | 华为技术有限公司 | Method and apparatus for wireless communication |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001017065A1 (en) * | 1999-08-27 | 2001-03-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for electronical beam control in a telecommunications system and base station using said method |
| CN1388667A (en) * | 2001-05-25 | 2003-01-01 | 株式会社Ntt都科摩 | Radio communication system for reducing interference of other communication system using approach frequency band |
| CN101052196A (en) * | 2006-04-04 | 2007-10-10 | 大唐移动通信设备有限公司 | Base station of orthogonal frequency division multiplex system and dispath method for it small area carrier resource |
| CN101282151A (en) * | 2007-04-03 | 2008-10-08 | 中兴通讯股份有限公司 | Mechanism for dynamically distributing time-frequency resource using MIMO precoding code book in OFDMA system |
-
2009
- 2009-10-30 CN CN200910236829.0A patent/CN102014504B/en active Active
-
2010
- 2010-10-21 WO PCT/CN2010/077938 patent/WO2011050687A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001017065A1 (en) * | 1999-08-27 | 2001-03-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for electronical beam control in a telecommunications system and base station using said method |
| CN1388667A (en) * | 2001-05-25 | 2003-01-01 | 株式会社Ntt都科摩 | Radio communication system for reducing interference of other communication system using approach frequency band |
| CN101052196A (en) * | 2006-04-04 | 2007-10-10 | 大唐移动通信设备有限公司 | Base station of orthogonal frequency division multiplex system and dispath method for it small area carrier resource |
| CN101282151A (en) * | 2007-04-03 | 2008-10-08 | 中兴通讯股份有限公司 | Mechanism for dynamically distributing time-frequency resource using MIMO precoding code book in OFDMA system |
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9686000B2 (en) | 2011-04-15 | 2017-06-20 | Futurewei Technologies, Inc. | System and method for two-way relaying with beamforming |
| US10256873B2 (en) | 2011-04-15 | 2019-04-09 | Futurewei Technologies, Inc. | System and method for two-way relaying with beamforming |
| CN103477599A (en) * | 2011-04-15 | 2013-12-25 | 华为技术有限公司 | System and method for two-way relaying with beamforming |
| US10951275B2 (en) | 2011-04-15 | 2021-03-16 | Futurewei Technologies, Inc. | System and method for two-way relaying with beamforming |
| WO2012151999A1 (en) * | 2011-08-05 | 2012-11-15 | 中兴通讯股份有限公司 | Parameter transmission method and device and parameter generation method and device |
| US9900873B2 (en) | 2011-08-05 | 2018-02-20 | Zte Corporation | Method and device for transmitting parameters and method and device for generating parameters |
| CN102355292A (en) * | 2011-08-05 | 2012-02-15 | 中兴通讯股份有限公司 | Method and apparatus for parameter transmission, and method and apparatus for parameter generation |
| WO2012155609A1 (en) * | 2011-08-12 | 2012-11-22 | 中兴通讯股份有限公司 | Method and system for switch processing |
| CN102932836A (en) * | 2011-08-12 | 2013-02-13 | 中兴通讯股份有限公司 | Switching processing method and system |
| CN102932836B (en) * | 2011-08-12 | 2017-11-10 | 邳州高新区生物医药研究院有限公司 | A kind of switching handling method and system |
| WO2013034109A1 (en) * | 2011-09-08 | 2013-03-14 | 华为技术有限公司 | Aas-based method, system, ue, and base station for information exchange |
| CN103517282A (en) * | 2012-06-27 | 2014-01-15 | 华为技术有限公司 | Method and device for acquiring available frequency spectrums |
| US9426807B2 (en) | 2012-06-27 | 2016-08-23 | Huawei Technologies Co., Ltd. | Method and apparatus for acquirement of available spectrum |
| CN103517282B (en) * | 2012-06-27 | 2016-11-16 | 华为技术有限公司 | The acquisition methods of usable spectrum and device |
| WO2014000548A1 (en) * | 2012-06-27 | 2014-01-03 | 华为技术有限公司 | Method and apparatus for acquirement of available spectrum |
| CN102984710B (en) * | 2012-12-14 | 2015-06-17 | 京信通信系统（中国）有限公司 | Method and device for allocating channel resources |
| CN102984710A (en) * | 2012-12-14 | 2013-03-20 | 京信通信系统（中国）有限公司 | Method and device for allocating channel resources |
| CN104469688A (en) * | 2013-09-22 | 2015-03-25 | 中国移动通信集团公司 | A pre-coding method, apparatus and system |
| CN104469688B (en) * | 2013-09-22 | 2018-10-26 | 中国移动通信集团公司 | A kind of method, apparatus and system of precoding |
| CN104581746B (en) * | 2014-12-02 | 2017-12-12 | 中国船舶重工集团公司第七一六研究所 | A kind of antenna location mode and antenna system based on LTE communication standard |
| CN104581746A (en) * | 2014-12-02 | 2015-04-29 | 中国船舶重工集团公司第七一六研究所 | Antenna distribution method and antenna system based on LTE (Long Term Evolution) communication standard |
| CN107771405A (en) * | 2015-06-21 | 2018-03-06 | Lg电子株式会社 | Downlink power distribution method and its equipment for the MUST transmission in wireless communication system |
| CN107771405B (en) * | 2015-06-21 | 2020-11-27 | Lg电子株式会社 | Downlink power allocation method for wireless communication system and apparatus therefor |
| US10932200B2 (en) | 2016-09-30 | 2021-02-23 | Huawei Technologies Co., Ltd. | Uplink power control method and apparatus to reduce user equipment-to-user equipment cross interference |
| WO2018059425A1 (en) * | 2016-09-30 | 2018-04-05 | 华为技术有限公司 | Uplink power control method and device |
| CN111885719A (en) * | 2017-05-04 | 2020-11-03 | 华为技术有限公司 | Method and apparatus for wireless communication |
| CN110771058A (en) * | 2017-07-21 | 2020-02-07 | 南通朗恒通信技术有限公司 | Method and device used for beamforming user and base station |
| WO2019014922A1 (en) * | 2017-07-21 | 2019-01-24 | 南通朗恒通信技术有限公司 | Method and device for user and base station for beam forming |
| CN110771058B (en) * | 2017-07-21 | 2023-02-03 | 南通朗恒通信技术有限公司 | Method and device used for beamforming user and base station |
| WO2020029277A1 (en) * | 2018-08-10 | 2020-02-13 | 北京小米移动软件有限公司 | Fbe data transmission method, apparatus, and storage medium |
| CN109076597A (en) * | 2018-08-10 | 2018-12-21 | 北京小米移动软件有限公司 | Data transmission method, device and the storage medium of FBE |
| CN109076597B (en) * | 2018-08-10 | 2022-10-04 | 北京小米移动软件有限公司 | FBE data transmission method, device and storage medium |
| US11882583B2 (en) | 2018-08-10 | 2024-01-23 | Beijing Xiaomi Software Co., Ltd. | FBE data transmission method, apparatus, and storage medium |
| WO2020103609A1 (en) * | 2018-11-20 | 2020-05-28 | Qualcomm Incorporated | Cross link interference detection systems and methods |
| US11792675B2 (en) | 2018-11-20 | 2023-10-17 | Qualcomm Incorporated | Cross link interference detection systems and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011050687A1 (en) | 2011-05-05 |
| CN102014504B (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102014504B (en) | Method for preventing signal interference in hierarchical network and base station | |
| CN102088780B (en) | Method and base station for avoiding signal interference in hierarchical network | |
| Ghosh et al. | Heterogeneous cellular networks: From theory to practice | |
| EP3455948B1 (en) | Method, system and apparatus of beam selection | |
| CN102271414B (en) | Method for transmission scheduling and device thereof | |
| CN102158910B (en) | Method, system and equipment for carrying out interference coordination | |
| CN103298115B (en) | A kind of base station and carry out the method for TDD base station ascending-descending subframes configuration | |
| CN102281638B (en) | Method and equipment for scheduling slot | |
| US9504084B2 (en) | Method to support an asymmetric time-division duplex (TDD) configuration in a heterogeneous network (HetNet) | |
| JP5678113B2 (en) | Cooperation communication method and apparatus | |
| EP2689627B1 (en) | Performing coordinated multipoint transmission and reception (comp) in a wireless communication network | |
| CN105407474A (en) | Resource management method and base station | |
| US20150087324A1 (en) | Base station, wireless communication system, and wireless communication method | |
| RU2566300C2 (en) | Communication control method and basic station of small or medium range | |
| CN102036296A (en) | Method, system and equipment for determining uplink and downlink configuration | |
| CN104838712A (en) | Systems and methods for interference avoidance, channel sounding, and other signaling for multi-user full duplex transmission | |
| Tombaz et al. | Energy performance of 5G-NX wireless access utilizing massive beamforming and an ultra-lean system design | |
| CN102036295A (en) | Method, system and equipment for determining uplink and downlink configuration | |
| JP6296575B2 (en) | Downlink transmission method, control apparatus, base station, and heterogeneous system in heterogeneous network | |
| CN105493595A (en) | Wireless base station, user terminal, and wireless communication method | |
| CN103297981A (en) | Method and device for interference coordination between base stations | |
| CN105103638A (en) | Wireless base station, user terminal, and wireless communication method | |
| CN102137499A (en) | Method, system and equipment for performing interruption coordination | |
| CN103281789B (en) | A kind of determine the method for uplink-downlink configuration, system and equipment | |
| CN106688287A (en) | User device, access node device, central network controller and corresponding methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110425 |
|
| C10 | Entry into substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20110425 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Applicant after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Applicant before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210603 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |