CN102685864B - Communication means and the base station applying this communication means - Google Patents
Communication means and the base station applying this communication means Download PDFInfo
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- CN102685864B CN102685864B CN201110057904.4A CN201110057904A CN102685864B CN 102685864 B CN102685864 B CN 102685864B CN 201110057904 A CN201110057904 A CN 201110057904A CN 102685864 B CN102685864 B CN 102685864B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses the base station of a kind of communication means and application the method.Described communication means includes：By background communication mode from the second base station receiving data silencing information, wherein, described data silencing information includes first base station ID and position instruction of mourning in silence to first base station；And first base station executes data in the position being indicated by described position instruction of mourning in silence and mourns in silence.The invention also discloses the base station of another kind of communication means and application the method.Described communication means includes：First base station receives down transmitting power control information by background communication mode from the second base station, wherein, described down transmitting power control information includes first base station ID and transmission power instruction, whether described transmission power instruction instruction transmission power exceedes transmission power thresholding, and is to be produced in units of frequency spectrum resource block；And first base station execution scheduling of resource, it is to avoid assign the user to be indicated as the frequency spectrum resource block that transmission power exceedes transmission power thresholding.
Description
Technical field
The present invention relates to communication technical field, more particularly, to the base station of communication means and application communication method.
Background technology
Multiple antennas (MIMO：Multiple In Multiple Out) Radio Transmission Technology configures in transmitting terminal and receiving terminal
Many antennas, are used to the space resources in being wirelessly transferred, and obtain spatial multiplex gains and space diversity gain.Theory of information
Research shows, the capacity of mimo system, with the minima linear increase of transmitting antenna number and reception antenna number.Mimo system
Schematic diagram is as shown in figure 1, in Fig. 1, transmitting terminal constitutes multi-antenna wireless channel with the multiple antennas of receiving terminal, comprises spatial information (si).
In addition, OFDM (OFDM) technology has stronger anti-fading ability and higher frequency efficiency, suitable multipath ring
High speed data transfer in border and fading environment.The MIMO-OFDM technology that MIMO technology is combined with OFDM technology,
Become the core technology of next-generation mobile communications.
For example, 3GPP (3G (Third Generation) Moblie Partnership Program) tissue is the international organization in moving communicating field, she
Play an important role in the standardization effort of 3G cellular telecommunication art.3GPP tissue started to design from the second half year in 2004
EUTRA (UMTS of evolution and Terrestrial Radio access) and the EUTRAN (UMTS of evolution
Net and Terrestrial Radio access network), this project is also referred to as LTE (Long Term Evolution) project.The downlink of LTE system is exactly to adopt
Use MIMO-OFDM technology.In April, 2008,3GPP is organized in China Shenzhen meeting, starts to inquire into the mark of 4G cellular communication system
Quasi- chemical industry makees (currently referred to as lte-a system).At the meeting, a kind of concept of entitled " multi-antenna multi-base station cooperation " obtains extensively
Concern and supporting, its core concept is to be that a user or multiple user provide communication service using multiple base stations simultaneously, thus
Improve the message transmission rate of cell boundary users.
By the end of in March, 2010, with regard to multi-antenna multi-base station cooperation, main conclusions are referring especially to levels of standards：3GPP
TR 36.814 V9.0.0 (2010-03), " Further advancements forE-UTRA physical layer
Aspects (Release 9) ", (3GPP organizational technology reports, numbering：36.814, version：V9.0.0, the date：In March, 2010,
" future development of the physical layer aspect that the Universal Terrestrial of evolution is wirelessly electrically accessed "), it is summarized as follows：
● the user equipment under multi-antenna multi-base station service needs to report each cell base station and user for one group of cell
Channel status/the statistical information of the link between equipment.This group cell is referred to as the measuring assembly of multi-antenna multi-base station transmission.
● the cell base station of user equipment actual feedback information can be a subset of measuring assembly, and referred to as multiple antennas are many
The cooperation set of base station transmission.(measuring assembly that the cooperation set of multi-antenna multi-base station transmission is transmitted with multi-antenna multi-base station can
With identical).
● the cell base station in the cooperation set of multi-antenna multi-base station transmission directly or indirectly participates in and sets for user
Standby PDSCH (Physical Downlink Shared Channel：Physical Downlink Shared Channel, i.e. the data of user equipment
Channel) transmission in.
● many base stations directly participate in cooperation transmission mode, referred to as JP (Joint Processing, Combined Treatment) it is desirable to
Give, the PDSCH Signal share of user equipment, the many base stations participating in cooperation, two methods can be subdivided into, a kind of referred to as JT (Joint
Transmission：Joint transmitting), refer to many base stations and launch its PDSCH signal to user equipment simultaneously；Another kind of referred to as DCS
(Dynamic Cell Selection：Dynamic cell selects), it is engraved in when referring to each in many base stations, a selection signal link is the strongest
Base station launch its PDSCH signal to user equipment.
● many base stations participate in the mode of cooperation transmission, referred to as CB/CS (CoordinatedBearmforming/ indirectly
Coordinated Scheduling：Beam coordination/dispatch coordination), do not require the PDSCH Signal share of user equipment to ginseng
Many base stations with cooperation.In the method, pass through between many base stations to coordinate the launching beam/resource of the PDSCH of different user devices,
Reach the purpose that suppression interferes；
● for the user equipment being configured with multi-antenna multi-base station cooperation transmission, feedback of the information is with individually anti-to each base station
Based on feedback, and feedback transmission occurs on the ascending resource of serving BS.
In terms of JP, in order to obtain more preferable systematic function, user equipment generally requires to obtain more channel status letters
Breath, this is accomplished by multiple base stations and sends the preferable channel condition information-downlink reference signal of quality for user equipment detection channel
State.In order to improve the quality of BTS channel status information-downlink reference signal, propose a kind of data in lte-a system and mourn in silence
Mechanism (PUSCH muting), that is, in order that channel condition information-the downlink reference signal of other base stations is not subject to larger disturbing,
The data transfer of base station is mourned in silence at the position of the channel condition information-downlink reference signal of other base stations.Referring to non-patent literary composition
Offer：3GPP TSG RAN WG1, R1-106522, Huawei, HiSilicon, NTT Docomo, Samsung, LG
Electronics, CATT, Panasonic, " Way forward on CSI-RS andmuting configurations
exchange over X2 interface”.
In terms of CB/CS, in LTE system, there is a kind of down transmitting power control method based on frequency spectrum resource block：Base
Stand in units of frequency spectrum resource block, send transmission power instruction to adjacent base station, this instruction is with frequency spectrum resource block as reporting unit, right
In each frequency spectrum resource block, indicate whether transmission power exceedes pre-determined threshold.Receive the base station of transmission power instruction, can take
The measures such as scheduling of resource, it is to avoid the user being easily disturbed is assigned to the frequency spectrum resource block at strong jamming place.Referring to document：3GPP
TS36.423, " X2 application protocol " (3GPP standardization document, numbering：36.423, " the application association of X2 interface
View ").This down transmitting power control method has simple and flexible, the less advantage of signaling consumption.
In addition, 3GPP research report 36.814 (3GPP TR 36.814 V9.0.0, EvolvedUniversal
Terrestrial Radio Access(E-UTRA)；Further advancements forE-UTRA physical
Layer aspects, 3GPP) defined in some concepts in multi-antenna multi-base station collaboration scenario and basic terminology.
Serving cell (Serving cell) refers to the little of single transmission PDCCH (Physical Downlink Control Channel) information
Area, this is existing concept in LTE.
User equipment in multi-antenna multi-base station cooperation needs to report each cell base station equipment and use for one group of cell
Channel status/the statistical information of the link between the equipment of family.This group cell is referred to as multi-antenna multi-base station cooperation measurement set
(measurement set).The cell of user equipment actual feedback information can be a subset of measuring assembly, referred to as report
Set (reported cells).Measuring assembly can be with multi-antenna multi-base station team work set (cooperating set)
Identical, the cell base station equipment in latter set directly or indirectly participates in the Physical Downlink Shared Channel for user equipment
Transmission.Cooperation set can not also be transparent to user equipment.For the user being configured to multi-antenna multi-base station modality for co-operation
For equipment, feedback is based in the form of every cell is individually fed back, and feedback transmission is enterprising in the ascending resource of Serving cell
OK.
The 50th meeting of 3GPP RAN have modified the research contents of LTE Rel-11 multi-antenna multi-base station cooperation further
(RP-101425, Revised SID Proposal：Coordinated Multi-pointOperation for LTE,
Samsung).In order to expand distribution in the scope of application, such as heterogeneous network (heterogeneous networks) and/or cell
The unconventional deployment scenario such as formula RRU (Remote Radio Unit, wireless remote module) are also included into multi-antenna multi-base station
The goal in research of cooperation.According to the conclusion of 3GPP the 63bis time meeting of RAN1, multi-antenna multi-base station joint study is by pin
Following four deployment scenario is carried out：
Scene 1：Multi-antenna multi-base station cooperation in standing；
Scene 2：Multi-antenna multi-base station cooperation between standing；
Scene 3：Multiple cell ID：All transfer points during macrocell covers have different cells ID；
Scene 4：Shared cell ID：All transfer points during macrocell covers have identical cell ID.
A hypothesis having in above-mentioned all scenes is the communication between transfer point is low delay, limitless volumes, this
It is also the most direct benefit brought using distributed RRU, because the medium now connecting between transfer point is usually
The restriction of optical fiber, transmission delay and bandwidth is just less strict.In above-mentioned multi-antenna multi-base station collaboration scenario, no matter transfer point it
Between whether shared cell ID, the effective CSI (channel condition information) in order to obtain each transmission point feeds back, and each transmission point needs
There is independent CSI-RS (channel state information reference signals) form (pattern).
In current standardization discusses, concrete grammar is not still had to be used for realizing in multi-antenna multi-base station collaboration scenario 4, with
Data is mourned in silence and/or down transmitting power controls correlation, base station equipment background communication (backhaul communication)
Method, this problem constitutes the main research of patent of the present invention.
Content of the invention
It is an object of the invention to：In multi-antenna multi-base station collaboration scenario 4, realize data and mourn in silence, and downlink
Power Control.
It is to realize data in multi-antenna multi-base station collaboration scenario 4 to mourn in silence, according to the first aspect of the invention, there is provided one
Plant communication means and the base station using this communication means.Described communication means comprises the steps：First base station passes through backstage
From the second base station receiving data silencing information, wherein, described data silencing information includes first base station ID and mourns in silence communication mode
Position instruction；And first base station executes data in the position being indicated by described position instruction of mourning in silence and mourns in silence.
According to a second aspect of the present invention, there is provided another kind of communication means and the base station using this communication means.Described
Communication means comprises the steps：Second base station produces data silencing information, and described data silencing information includes first base station ID
With position instruction of mourning in silence；And second base station by background communication mode, send described data to described first base station and mourn in silence letter
Breath.
It is to realize down transmitting power control in multi-antenna multi-base station collaboration scenario 4, according to the third aspect of the invention we,
Provide a kind of communication means and the base station using this communication means.Described communication means comprises the steps：First base station
Down transmitting power control information is received from the second base station by background communication mode, wherein, described down transmitting power controls
Information includes first base station ID and transmission power instruction, and whether described transmission power instruction instruction transmission power exceedes transmitting work(
Rate thresholding, and be to be produced in units of frequency spectrum resource block；And first base station execution scheduling of resource, it is to avoid user is distributed
To the frequency spectrum resource block being indicated as transmission power and exceeding transmission power thresholding.
According to a fourth aspect of the present invention, there is provided another kind of communication means and the base station using this communication means.Described
Communication means comprises the steps：Second base station produces down transmitting power control information, and described down transmitting power controls letter
Breath includes first base station ID and transmission power instruction, and whether described transmission power instruction instruction transmission power exceedes transmission power
Thresholding, and be to be produced in units of frequency spectrum resource block；And second base station by background communication mode, to described first base
Stand and send described down transmitting power control information.
Had according to communication means proposed by the present invention and corresponding base station and realize higher excellent of simple, throughput of system
Point.
Brief description
By the preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, above and other purpose, the spy of the present invention will be made
Advantage of seeking peace is clearer, wherein：
Fig. 1 is the schematic diagram of mimo system；
Fig. 2 is the schematic diagram of multi cell cellular communication system；
Fig. 3 is the schematic diagram of the communication means according to first aspect present invention；
Fig. 4 is the schematic diagram of the communication means according to second aspect present invention；
Fig. 5 is the schematic diagram of the service area that adjacent base station BS 200 and BS 300 is constituted；
Fig. 6 is the schematic diagram of the service area that adjacent base station BS 100 and BS 200 is constituted；
Fig. 7 is the schematic diagram of the base station according to first aspect present invention；
Fig. 8 is the schematic diagram of the base station according to second aspect present invention；
Fig. 9 is the schematic diagram of the communication means according to third aspect present invention；
Figure 10 is the schematic diagram of the communication means according to fourth aspect present invention；
Figure 11 is the schematic diagram of the base station according to third aspect present invention；And
Figure 12 is the schematic diagram of the base station according to fourth aspect present invention；
Specific embodiment
With reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail, eliminate in the course of the description for this
It is unnecessary details and function for invention, to prevent the understanding of the present invention from causing to obscure.
In order to clearly be set forth in the realization of the present invention, the specific embodiment of some present invention is given below it is adaptable to
LTE-A (Rel-10, Rel-11 and later version) cellular communication system.It should be noted that the invention is not restricted to embodiment
Described in application, and can be applied to other communication systems, 5G system such as from now on.
Fig. 2 shows the scene 4 in LTE-ARel-11 network.Cellular system is divided into service coverage area and connects
Wireless coverage area, i.e. cell.In fig. 2, cell is diagrammatically depicted as regular hexagon, and whole coverage is by cell A, B
It is spliced with C.With cell A, what B with C was related is base station BS 100 respectively, BS 200 and BS 300.Base station BS 100, BS
Each of 200 and BS 300 includes at least transmitter, a receiver, and this is known in the field.In fig. 2,
Base station BS 100, BS 200 and BS 300 are diagrammatically depicted as positioned at cell A, a certain region of B and C, and are equipped with omnidirectional
Antenna.But, in the cell layout of cellular communication system, base station BS 100, BS 200 and BS 300 can also be equipped with orientation
Antenna, has direction ground coverage cell A, the subregion of B and C, this subregion is commonly known as sector.Therefore, Fig. 2's is how little
The diagram of area's cellular communication system, merely to illustrative purpose, is not meant to that the present invention needs in the enforcement of cellular system
State restricted specified conditions.
In fig. 2, also have 5 distributed RRU, respectively R 202, R 204, R 206, R under the covering of base station BS 200
208 and R 210.6 transfer point R 200～R 210 including base station BS 200 have identical cell ID.5 distributions
Formula RRU has different sub- ID.Also have 3 distributed RRU, respectively R 102, R 104 and R under the covering of base station BS 100
106.4 transfer point R 100～R 106 including base station BS 100 have identical cell ID.The covering of base station BS 300
Lid is lower to also have 2 distributed RRU, respectively R 302 and R 304.3 transfer point R 300～R including base station BS 300
304 have identical cell ID.All of RRU all passes through optical fiber with corresponding base station and is connected, and is illustrated as dotted line in fig. 2.
In fig. 2, base station BS 100, BS 200 and BS 300 pass through X2 interface BH 400, BH402 and BH404 phase each other
Even, it is illustrated as chain-dotted line in fig. 2.In lte-a system, by three layers of section of base station, wireless network control unit and core net
Spot net structure is simplified to two-layer node structure.Wherein, the function of wireless network control unit is divided into base station, base station and base
Stand and coordinated by the wireline interface of entitled " X2 " and communicate.It is pointed out that in future communication systems, between base station
Also likely to be present wave point to coordinate and communicate.Interface BH 400, BH 402 and BH404 is to illustrate presence between base station
The medium of communication, the concrete form of this communication media can be the cable modem meeting various communication standards (as IPv4, IPv6 etc.)
Communication network.
Below, it is given in multi-antenna multi-base station collaboration scenario 4 realizing, with reference to Fig. 3, the basic skills that data is mourned in silence.For letter
For the sake of list, first only with the angle of adjacent base station BS 200 and BS 300, the realization of the method is described.Fig. 5 shows adjacent base
The service area that the BS 200 and BS 300 that stands is constituted.
As shown in figure 3, in step S301, base station BS 300 receives the data silencing information from base station BS 200.Institute
Stating data silencing information is sending from base station BS 200 to oriented communication information DS 700 of base station BS 300 shown in Fig. 5.Institute
State that data silencing information at least includes the ID of base station BS 300 and instruction data is mourned in silence the instruction of position.The ID of base station BS 300
For functions such as message routes.Described instruction can be the RRU closer with the geographical position of base station BS 300 (R 208 and/or
R 210) CSI-RS positional information, or can also be the RRU (R 208 closer with the geographical position of base station BS 300
And/or R 210) and base station BS 200 CSI-RS positional information.Described data silencing information can be by joining in after a while
The method examining Fig. 4 description produces and transmits.
Then, in step S302, base station BS 300, according to instruction, executes data and mourns in silence.Specifically, can with base station BS
At the closer position of CSI-RS of RRU (R 208 and/or R 210) in 300 geographical position, execution data is mourned in silence, or also
Can be the CSI- of the RRU (R 208 and/or R 210) closer with the geographical position of base station BS 300 and base station BS 200
At the position of RS, execution data is mourned in silence.
If it is pointed out that the described instruction instruction RRU (R 208 closer with the geographical position of base station BS 300
And/or R 210) CSI-RS positional information, in described oriented communication information DS 700, can also include and base station BS 300
The closer RRU (R 208 and/or R 210) in geographical position sub- ID so that base station BS 300 does to its data silencing strategies
Go out more excellent selection.Such as, when the data resource service condition of base station BS 300 is more nervous, base station BS 300 can select
Only mourn in silence at the position of the channel condition information-downlink reference signal of R 208 or R 210 its data transfer.For another example, base station
BS 300 can pass through scheduling of resource, limit the downlink of the RRU (such as R 302) close to R 208 and/or R 210, reach
The effect of its data transfer of mourning in silence at the position in the channel condition information-downlink reference signal of R 208 and/or R 210；No
Cross, for R 304, due to it from R 208 and/or R 210 farther out, base station BS 300 can not make its data mourn in silence, thus carrying
The service quality of high R 304 nearby users.
If the described instruction instruction RRU (R 208 and/or R 210) closer with the geographical position of base station BS 300 with
And the positional information of the CSI-RS of base station BS 200, in the described oriented communication information, also include base station BS 200 ID and/or
The sub- ID of the RRU (R 208 and/or R 210) closer with the geographical position of base station BS 300, so that base station BS 300 counts to it
Make more excellent selection according to silencing strategies.Such as, when the data resource service condition of base station BS 300 is more nervous, base station BS
300 can select only quiet at the position of R 208 or R 210 or the channel condition information-downlink reference signal of base station BS 200
Its data transfer silent.For another example, base station BS 300 can pass through scheduling of resource, limits from the geographical position ratio with base station BS 300
Nearer RRU (R 208 and/or R 210) and/or the downlink of the nearer RRU (such as R 302) of base station BS 200, reach
Channel status in the RRU (R 208 and/or R 210) closer with the geographical position of base station BS 300 and/or base station BS 200
The effect of its data transfer of mourning in silence at the position of information-downlink reference signal；But, for R 304, due to its from base station BS
The closer RRU (R208 and/or R 210) in 300 geographical position and/or base station BS 200 is farther out, base station BS 300 can not
Its data is made to mourn in silence, thus improving the service quality of R 304 nearby users.
Below, the method describing base station BS 200 side with reference to Fig. 4.First, in step S401, produce data silencing information.
As described above, described data silencing information at least includes the ID of strong jamming base station BS 300 and the instruction data of base station BS 200
Mourn in silence the instruction of position.
Base station BS 200 can determine its strong jamming base station, and obtain the ID of strong jamming base station in several ways.The simplest
A kind of single easy mode is with the principle of range attenuation, adjacent base station to be defined as strong jamming base station based on signal intensity, and obtains
Obtain the ID of adjacent base station.Because base station and RRU are typically all fixing device, belong to capital construction facility.Therefore, can between base station
To pass through network planning table in advance, learn the ID of adjacent base station.Specifically, the base station BS 200 in Fig. 5, itself and base station BS are investigated
300 is adjacent.Therefore, the ID of base station BS 300 is included in data silencing information.
Additionally, base station BS 200 (R 202～210), R 208 and R 210 when arranging RRU it is known that in its 5 RRU
Closer with the geographical position of base station BS 300, the larger interference from base station BS 300 may be subject to.Therefore, it is necessary to please
Base station BS 300 is protected to the channel condition information-downlink reference signal of R 208 and R 210, that is, make base station BS 300
At the channel condition information-downlink reference signal position of R 208 and R 210, its data transfer of mourning in silence.Thus, data is mourned in silence
Information includes the positional information of the CSI-RS of R 208 and R 210.Certainly, can also include and base station in data silencing information
The positional information of closer base station BS 200 CSI-RS of itself in the geographical position of BS 300.
In addition, the sub- ID of R 208 and R 210 is known to base station BS 200, thus as described with respect to figure 3, number
According to the son that can also include the RRU (R 208 and/or R 210) closer with the geographical position of base station BS 300 in silencing information
ID.Certainly, base station BS 200 ID of itself can be included in data silencing information.
Then, in step S402, base station BS 200 is sent in step by background communication link BH 402 to base station BS 300
The data silencing information producing in rapid S401, i.e. oriented communication information DS 700 shown in Fig. 5.
Below, the angle then with adjacent base station BS 200 and 100, the realization of description the method.Fig. 6 shows adjacent base station
The service area that BS 200 and 100 is constituted.
Because base station and RRU are typically all fixing device, belong to capital construction facility.Therefore, can be prior between base station
By network planning table, learn the ID of adjacent base station.Investigate base station BS 200, it is adjacent with base station BS 100.When arranging RRU,
Base station BS 200 understands, in its 5 RRU (R 202～R 210), R 204 is nearest with the geographical position of base station BS 100, can
The larger interference from base station BS 100 can be subject to.Therefore, it is necessary to please believe to the channel status of R 204 base station BS 100
Breath-downlink reference signal is protected, that is, make base station BS 100 in the channel condition information-downlink reference signal position of R 204
Put place, its data transfer of mourning in silence.Then, base station BS 200 is to base station BS 100, by background communication link 400, the having of transmission
To in the communication information, at least include the ID of target BS BS 100 and instruction data is mourned in silence the instruction of position.This instruction is R
204 CSI-RS positional information (alternatively, and R 204 CSI-RS cycle information).The schematic diagram of the present embodiment is such as
Shown in Fig. 6, in figure 6, signal DS 702 is the described oriented communication information.
It is pointed out that the sub- ID of R 204 can also be included in the described oriented communication information, so that base station BS 100 is right
Its data silencing strategies makes more excellent selection.Such as, base station BS 100 can pass through scheduling of resource, limits close to R 204
RRU (such as R 102, R 106) downlink, reach the position of the channel condition information-downlink reference signal in R 204
Mourn in silence the effect of its data transfer in place；But, for R 104, due to it from R 204 farther out, base station BS 100 can not make it
Data is mourned in silence, thus improving the service quality of R 104 nearby users.
Additionally, when arranging RRU, base station BS 200 understands, the R 204 of (R 202～R 210) and base in its 5 RRU
The BS 200 itself that stands is nearest with the geographical position of base station BS 100, may be subject to the larger interference from base station BS 100.Cause
This it is necessary to please base station BS 100 channel condition information-the downlink reference signal of R204 and base station BS 200 is protected,
Make base station BS 100 at the channel condition information-downlink reference signal position of R 204 and base station BS 200, mourn in silence it
Data transfer.Then, base station BS 200 is to base station BS 100, by background communication link 400, the oriented communication information of transmission
In, at least include the ID of mesh base station BS 100 and instruction data is mourned in silence the instruction of position.This instruction is R 204 and base station BS
200 CSI-RS positional information (alternatively, and R 204 and base station BS 200 CSI-RS cycle information).This enforcement
As shown in fig. 6, in figure 6, signal DS 702 is the described oriented communication information to the schematic diagram of example.
It is pointed out that the sub- ID of R 204 and/or base station BS 200 can also be included in the described oriented communication information
ID, so that base station BS 100 makes more excellent selection to its data silencing strategies.Such as, when the data resource of base station BS 100 makes
With situation more nervous when, base station BS 100 can select the only channel condition information-descending ginseng in R 204 or base station BS 200
Examine its data transfer of mourning in silence at the position of signal.For another example, base station BS 100 can pass through scheduling of resource, limit from R 204 and/
Or the downlink of the RRU (such as R 102, R 106) that base station BS 200 is nearer, reach in R 204 and/or base station BS 200
The effect of its data transfer of mourning in silence at the position of channel condition information-downlink reference signal；But, for R 104, due to its from
Farther out, base station BS 100 can not make its data mourn in silence for R 204 and/or base station BS 200, thus improving R 104 nearby users
Service quality.
Support that the hardware that the data in scene 4 is mourned in silence is realized
Referring to Fig. 7 and 8, description is according to the base station 700 and 800 of first and second aspect of the present invention.Situation in Fig. 5
Under, base station 700 corresponds to the base station BS 300 in Fig. 5, and base station 800 corresponds to the base station BS 200 in Fig. 5.Situation in Fig. 6
Under, base station 700 corresponds to the base station BS 100 in Fig. 6, and base station 800 corresponds to the base station BS 200 in Fig. 6.
As shown in fig. 7, base station 700 includes：Receiving unit 710, is suitable to receive number by background communication mode from base station 800
According to silencing information, wherein, described data silencing information includes the ID of base station 700 and position instruction of mourning in silence；Mourn in silence performance element
720, it is suitable to mourn in silence in the position execution data by described position instruction instruction of mourning in silence.Described position instruction instruction base station of mourning in silence
800 cell range is interior, the channel condition information reference letter from nearest one or more wireless remote modules RRU in base station 700
The position of number CSI-RS.Described position instruction of mourning in silence also can indicate that the position of the CSI-RS of base station 800.
If described data silencing information also includes the sub- ID of one or more of RRU, base station 700 can also include：
Scheduling of resource unit 730, is suitable to make in cell range, realizes number from the nearest one or more RRU of one or more of RRU
According to mourning in silence.
If described data silencing information also includes the sub- ID of the ID and/or one or more of RRU of base station 800, institute
State scheduling of resource unit 730 be suitable to make in cell range, from described base station 800 and/or one or more of RRU nearest one
Individual or multiple RRU realize data and mourn in silence.
As shown in figure 8, base station 800 includes：Data silencing information generation unit 810, is suitable to produce data silencing information, institute
State data silencing information and include the ID of base station 700 and position instruction of mourning in silence；And transmitting element 820, it is suitable to by background communication
Mode, sends described data silencing information to described base station 700.
Below, it is given in multi-antenna multi-base station collaboration scenario 4, realizing the basic skills of downlink power control with reference to Fig. 9.
For the sake of simplicity, first only with the angle of adjacent base station BS 200 and BS 300, the realization of the method is described.Fig. 5 shows phase
Adjacent base station BS 200 and the service area of BS 300 composition.
As shown in figure 9, in step S901, the down transmitting power that base station BS 300 receives from base station BS 200 controls
Information.Described down transmitting power control information is that sending from base station BS 200 shown in Fig. 5 is led to the oriented of base station BS 300
Letter information DS 700.Described down transmitting power control information at least includes the ID of base station BS 300 and with frequency spectrum resource block is
The transmission power instruction of unit reports, can also include specific transmission power thresholding.Described transmission power thresholding can be with
The transmission power thresholding of the closer RRU (R 208 and/or R 210) in the geographical position of base station BS 300, or can also be with
The closer RRU (R 208 and/or R 210) in the geographical position of base station BS 300 and the transmission power thresholding of base station BS 200.Phase
Ying Di, described transmission power instruction can be the RRU (R 208 and/or R 210) closer with the geographical position of base station BS 300
Transmission power whether exceed the instruction of respective threshold, or can also be closer with the geographical position of base station BS 300
Whether the transmission power of RRU (R 208 and/or R 210) and base station BS 200 exceedes the instruction of respective threshold.Described descending
Penetrating power control information can be by will produce in the method describing later referring to Figure 10 and transmits.
Then, in step S902, base station BS 300, according to instruction, takes the measures such as scheduling of resource, it is to avoid be easily disturbed
User be assigned to be indicated as transmission power exceed respective threshold, strong jamming be located frequency spectrum resource block.
If it is pointed out that the described instruction instruction RRU (R 208 closer with the geographical position of base station BS 300
And/or R 210) transmission power whether exceed thresholding, can also include and base station BS in described oriented communication information DS 700
The sub- ID of the closer RRU (R 208 and/or R 210) in 300 geographical position, so that base station BS 300 disturbs to it answers countermeasure
Slightly make more excellent selection.Such as, base station BS 300 may determine that R 302 close to R 208 and/or R 210, thus to R
302 strict uses disturb coping strategy (for example, on the larger frequency spectrum resource of R 208 and/or R 210 transmission power, only to arrange
Central user under R 302 coverage is serviced, to reduce the impact that interference causes)；And to from R 208 and/or R
210 R 304 farther out, then need not be strictly using interference coping strategy, thus improving the scheduling freedom of R 304.
If the described instruction instruction RRU (R 208 and/or R 210) closer with the geographical position of base station BS 300 with
And whether the transmission power of base station BS 200 exceedes and can also include in the oriented communication information described in thresholding and base station BS 300
The sub- ID of the closer RRU in geographical position (R 208 and/or R 210) and/or the ID of base station BS 200, so that base station BS 300
It is disturbed coping strategy make more excellent selection.Such as, base station BS 300 may determine that R 302 from base station BS 300
The closer RRU in geographical position (R 208 and/or R 210) and/or base station BS 200 are relatively near, thus to R 302 strictly using dry
Disturb coping strategy (for example, on the larger frequency spectrum resource of R 208 and/or R 210 and/or base station BS 200 transmission power, only to pacify
Row services to the central user under R 302 coverage, to reduce the impact that interference causes)；And to from base station BS
300 geographical position closer RRU (R 208/ or R 210) and/or base station BS 200 R 304 farther out, then need not be strict
Using interference coping strategy, thus improving the scheduling freedom of R 304.
Below, the method describing base station BS 200 side with reference to Figure 10.First, in step S1001, produce down transmitting power
Control information.As described above, described down transmitting power control information at least includes the base station BS by base station BS 200 interference
300 ID and transmission power instruction.
Base station BS 200 can determine the base station disturbed by it, and obtain the ID of this base station in several ways.The simplest
A kind of easy mode is, based on signal intensity, adjacent base station is defined as with the principle of range attenuation the base station disturbed by it, and
Obtain the ID of adjacent base station.Because base station and RRU are typically all fixing device, belong to capital construction facility.Therefore, between base station
Network planning table can be passed through in advance, learn the ID of adjacent base station.Specifically, the base station BS 200 in Fig. 5, itself and base station BS are investigated
300 is adjacent.Therefore, the ID of base station BS 300 is included in down transmitting power control information.
Additionally, base station BS 200 (R 202～210), R 208 and R 210 when arranging RRU it is known that in its 5 RRU
Closer with the geographical position of base station BS 300, larger interference may be caused to base station BS 300.Therefore, it is necessary to frequency spectrum
Resource Block be unit, to base station BS 300 send transmission power instruction, this instruction with frequency spectrum resource block as reporting unit, for every
Individual frequency spectrum resource block, indicates whether the transmission power of R 208 and R 210 exceedes pre-determined threshold.Thus, down transmitting power controls
Whether the transmission power that information includes R 208 and R 210 exceedes the instruction of pre-determined threshold.Certainly, down transmitting power controls
Can also include in information whether base station BS 200 itself the transmission power closer with the geographical position of base station BS 300 surpasses
Cross the instruction of pre-determined threshold.
In addition, the sub- ID of R 208 and R 210 is known to base station BS 200, thus as described by with reference to Fig. 9, under
RRU (the R 208 and/or R closer with the geographical position of base station BS 300 can also be included in row transmission power control information
210) ID.Certainly base station BS 200 ID of itself can be included in down transmitting power control information.
Then in step S1002 base station BS 200, step is sent in base station BS 300 by background communication link BH 402
The down transmitting power control information producing in S1001 is oriented communication information DS 700 shown in Fig. 5.
Below, the angle then with adjacent base station BS 200 and 100, the realization of description the method.Fig. 6 shows adjacent base station
The service area that BS 200 and 100 is constituted.
Because base station and RRU are typically all that fixing device belongs to capital construction facility.Therefore, can lead in advance between base station
Cross the ID that adjacent base station learnt by network planning table.Investigate base station BS 200, it is adjacent with base station BS 100.When arranging RRU, base station
BS 200 understands that R 204 is closer with the geographical position of base station BS 100 may be right in its 5 RRU (R 202～210)
Base station BS 100 causes larger interference.Therefore, it is necessary in units of frequency spectrum resource block, send transmission power to base station BS 100
Instruction, whether this instruction, with frequency spectrum resource block as reporting unit, for each frequency spectrum resource block, indicates the transmission power of R 204
Exceed pre-determined threshold.The base station BS 100 receiving transmission power instruction can take the measures such as scheduling of resource to avoid easily being disturbed
User be assigned to strong jamming place frequency spectrum resource block.R 102 under covering in particular for base station BS 300 and R106, especially
Its needs takes measures, and tackles the interference that will launch from R 204.Then, base station BS 200, to base station BS 100, passes through
Background communication link 400, at least includes ID and each frequency spectrum money of target BS BS 100 in the oriented communication information of transmission
Whether the transmission power in source block exceedes transmission power thresholding.Alternatively can also include in the oriented communication information launching accordingly
Power threshold.As shown in fig. 6, in figure 6, signal 702 is the described oriented communication information to the schematic diagram of the present embodiment.
It is pointed out that the sub- ID of R 204 in the described oriented communication information, can also be included, so that base station BS 100
It is disturbed coping strategy make more excellent selection.Such as, base station BS 100 may determine that R 102 and/or R 106 from R
204 relatively near thus to R 102 and/or R 106 strictly using interference coping strategy (for example, in the frequency that R 204 transmission power is larger
On spectrum resource, only arrange the central user under R 102 and/or R 106 coverage is serviced, to reduce what interference caused
Impact)；And to the R 104 farther out from R 204, then need not be strictly using interference coping strategy, thus improving the scheduling of R 104 certainly
By spending.
In addition, when arranging RRU, base station BS 200 understands, the R 204 of (R 202～210) and base station in its 5 RRU
BS 200 itself is closer with the geographical position of base station BS 100, may cause larger interference to base station BS 100.Therefore have
Necessity, in units of frequency spectrum resource block, sends transmission power instruction to base station BS 100, this instruction is with frequency spectrum resource block for report
For each frequency spectrum resource block, unit, indicates whether R 204 and the transmission power of base station BS 200 exceed pre-determined threshold.Receive
The base station BS 100 of transmission power instruction, can take the measures such as scheduling of resource, it is to avoid be assigned to by force the user being easily disturbed
The frequency spectrum resource block that interference is located.Especially, the R 102 under base station BS 300 covering and R 106 is arranged it is especially desirable to take
Apply, tackle the interference that will launch from R 204 and base station BS 200.Then, base station BS 200, to base station BS 100, leads to
Later platform communication link 400, in the oriented communication information of transmission, at least includes ID and each frequency spectrum of target BS BS 100
Whether the transmission power on Resource Block exceedes transmission power thresholding.Alternatively, can also include in the oriented communication information accordingly
Transmission power thresholding.As shown in fig. 6, in figure 6, signal 702 is the described oriented communication information to the schematic diagram of the present embodiment.
It is pointed out that the described oriented communication information, in can also include sub- ID and/or the base station BS 200 of R 204
ID so that base station BS 100 disturbs coping strategy to make more excellent selection to it.Such as, base station BS 100 may determine that R
102 and/or R 106 close to R 204 and/or base station BS 200, thus to R 102 and/or R 106 strictly using interference reply
Strategy (for example, on the larger frequency spectrum resource of R 204 and/or base station BS 200 transmission power, only arranges to R 102 and/or R
Central user under 106 coverages is serviced to reduce the impact that interference causes)；And to from R 204 and/or base station BS
200 R 104 farther out, then need not be strictly using interference coping strategy, thus improving the scheduling freedom of R 104.
Support that the hardware that the down transmitting power in scene 4 controls is realized
Referring to Figure 11 and 12, description is according to the base station 1100 and 1200 of the present invention third and fourth aspect.Fig. 5's
Under situation, base station 1100 corresponds to the base station BS 300 in Fig. 5, and base station 1200 corresponds to the base station BS 200 in Fig. 5.In Fig. 6
In the case of, base station 1100 corresponds to the base station BS 100 in Fig. 6, and base station 1200 corresponds to the base station BS 200 in Fig. 6.
As shown in figure 11, base station 1100 includes：Receiving unit 1110, is suitable to connect from base station 1200 by background communication mode
Accept row transmission power control information, wherein, described down transmitting power control information includes ID and the transmitting of base station 1100
Power indicates, whether described transmission power instruction instruction transmission power exceedes transmission power thresholding, and is with frequency spectrum resource block
Produce for unit；And scheduling of resource unit 1120, it is suitable to avoid to assign the user to be indicated as transmission power exceed and send out
Penetrate the frequency spectrum resource block of power threshold.In the cell range of described transmission power instruction instruction base station 1200, from base station 1100
Whether the transmission power of near one or more RRU exceedes corresponding transmission power thresholding.Described transmission power instruction is acceptable
Indicate whether the transmission power of base station 1200 exceedes the transmission power thresholding of described base station 1200.
If described down transmitting power control information also includes the sub- ID of one or more of RRU, described base station
1100 can also include Anti-interference Strategy performance element 1130, be suitable to in cell range, from one or more of RRU
Near one or more RRU, reduce the impact that interference causes further.
If described down transmitting power control information also includes the ID and/or one or more of RRU of base station 1200
Sub- ID, described Anti-interference Strategy performance element 1130 is further adapted for in cell range, from described base station 1200 and/or described
The nearest one or more RRU of one or more RRU reduce the impact that interference causes further.
Base station 1200 includes as shown in figure 12：Down transmitting power control information generation unit 1210, is suitable to produce descending
Down transmitting power control information described in transmission power control information is included described in ID and the transmission power instruction of base station 1100
Whether transmission power instruction instruction transmission power exceedes transmission power thresholding, and is to be produced in units of frequency spectrum resource block；
And transmitting element 1220, by background communication mode, send described down transmitting power control information to described base station 1100.
It should be noted that in the above description, only in an illustrative manner, show technical scheme, but simultaneously
It is not intended that the invention is limited to above-mentioned steps and cellular construction.In a likely scenario, can be as needed to step and list
Meta structure is adjusted and accepts or rejects.Therefore, some steps and unit are not implemented necessary to the overall invention thought of the present invention
Element.Therefore, technical characteristic essential to the invention is limited solely by the minimum of the overall invention thought being capable of the present invention and wants
Ask, and do not limited by above instantiation.
So far already in connection with preferred embodiment, invention has been described.It should be understood that those skilled in the art are not
In the case of departing from the spirit and scope of the present invention, various other changes, replacement and interpolation can be carried out.The therefore present invention
Scope is not limited to above-mentioned specific embodiment, and should be defined by the appended claims.
Claims (16)
1. a kind of communication means, comprises the steps：
First base station is by background communication mode from the second base station receiving data silencing information, wherein, described data silencing information
Including first base station ID and position instruction of mourning in silence；And
First base station is mourned in silence in the position execution data by described position instruction instruction of mourning in silence,
Wherein, described mourn in silence position instruction indicate described second base station cell range in, from described first base station nearest one
The position of channel state information reference signals CSI-RS of individual or multiple wireless remote module RRU.
2. method according to claim 1, wherein, described position instruction of mourning in silence also indicates the CSI-RS of described second base station
Position.
3. method according to claim 1, wherein, described data silencing information also includes：One or more of RRU's
Sub- ID；And
Wherein, optionally at the position of the CSI-RS of one or more of RRU, execution data is quiet for described first base station
Silent；And/or
Described first base station makes in cell range, it is quiet to realize data from the nearest one or more RRU of one or more of RRU
Silent.
4. method according to claim 2, wherein, described data silencing information also includes：The ID of described second base station and/
Or the sub- ID of one or more of RRU；And
Wherein, described first base station is optionally in the position of one or more of RRU and the CSI-RS of described second base station
Place, execution data is mourned in silence；And/or
Described first base station makes in cell range, nearest one from described second base station and/or one or more of RRU or
Multiple RRU realize data and mourn in silence.
5. a kind of base station, referred to as first base station, described first base station includes：
Receiving unit, is suitable to by background communication mode from the second base station receiving data silencing information, wherein, described data is mourned in silence
Information includes first base station ID and position instruction of mourning in silence；And
Mourn in silence performance element, be suitable to mourn in silence in the position execution data by described position instruction instruction of mourning in silence,
Wherein, described mourn in silence position instruction indicate described second base station cell range in, from described first base station nearest one
The position of channel state information reference signals CSI-RS of individual or multiple wireless remote module RRU.
6. base station according to claim 5, wherein, described position instruction of mourning in silence also indicates the CSI-RS of described second base station
Position.
7. base station according to claim 5, wherein, described data silencing information also includes：One or more of RRU's
Sub- ID；And
Wherein, described performance element of mourning in silence, optionally at the position of the CSI-RS of one or more of RRU, executes data
Mourn in silence；And/or
Described first base station also includes：Scheduling of resource unit, is suitable to make cell range interior, nearest from one or more of RRU
One or more RRU realize data and mourn in silence.
8. base station according to claim 6, wherein, described data silencing information also includes：The ID of described second base station and/
Or the sub- ID of one or more of RRU；And
Wherein, described mourn in silence the CSI-RS's optionally in one or more of RRU and described second base station for the performance element
At position, execution data is mourned in silence；And/or
Described first base station also includes：Scheduling of resource unit, is suitable to make in cell range, from described second base station and/or described
The nearest one or more RRU of one or more RRU realize data and mourn in silence.
9. a kind of communication means, including：
Second base station produces data silencing information, and described data silencing information includes first base station ID and position instruction of mourning in silence；With
And
Second base station, by background communication mode, sends described data silencing information to described first base station,
Wherein, described mourn in silence position instruction indicate described second base station cell range in, from described first base station nearest one
The position of channel state information reference signals CSI-RS of individual or multiple wireless remote module RRU.
10. method according to claim 9, wherein, described position instruction of mourning in silence also indicates the CSI- of described second base station
The position of RS.
11. methods according to claim 9, wherein, described data silencing information also includes：One or more of RRU
Sub- ID.
12. methods according to claim 10, wherein, described data silencing information also includes：The ID of described second base station
And/or the sub- ID of one or more of RRU.
A kind of 13. base stations, the referred to as second base station, described second base station includes：
Data silencing information generation unit, is suitable to produce data silencing information, described data silencing information includes first base station ID
With position instruction of mourning in silence；And
Transmitting element, is suitable to, by background communication mode, send described data silencing information to described first base station,
Wherein, described mourn in silence position instruction indicate described second base station cell range in, from described first base station nearest one
The position of channel state information reference signals CSI-RS of individual or multiple wireless remote module RRU.
14. base stations according to claim 13, wherein, described position instruction of mourning in silence also indicates the CSI- of described second base station
The position of RS.
15. base stations according to claim 13, wherein, described data silencing information also includes：One or more of RRU
Sub- ID.
16. base stations according to claim 14, wherein, described data silencing information also includes：The ID of described second base station
And/or the sub- ID of one or more of RRU.
Priority Applications (2)
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| CN201110057904.4A CN102685864B (en) | 2011-03-11 | 2011-03-11 | Communication means and the base station applying this communication means |
| PCT/JP2012/056489 WO2012124715A1 (en) | 2011-03-11 | 2012-03-07 | Communication methods and base stations using the same |
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| CN201110057904.4A CN102685864B (en) | 2011-03-11 | 2011-03-11 | Communication means and the base station applying this communication means |
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| JP6355110B2 (en) * | 2012-10-10 | 2018-07-11 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | Communication method, array system and controller using distributed antenna array system |
| CN103945556B (en) * | 2013-01-21 | 2017-10-31 | 电信科学技术研究院 | A kind of method of scheduling of resource, system and equipment |
| EP3065458B1 (en) * | 2013-10-29 | 2019-09-11 | Kyocera Corporation | Base station |
| CN106105359B (en) * | 2014-03-11 | 2019-11-19 | 华为技术有限公司 | Disturbance coordination method and base station |
| WO2016138664A1 (en) * | 2015-03-05 | 2016-09-09 | Qualcomm Incorporated | Coordination between macro cell and small cell to handle interference for flexible duplex system |
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| CN101677257A (en) * | 2008-09-19 | 2010-03-24 | 华为技术有限公司 | Method, device and system for obtaining silent period parameters |
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| CN101677257A (en) * | 2008-09-19 | 2010-03-24 | 华为技术有限公司 | Method, device and system for obtaining silent period parameters |
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