CN104038943B - Disturbance coordination method, system and a kind of network node - Google Patents
Disturbance coordination method, system and a kind of network node Download PDFInfo
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- CN104038943B CN104038943B CN201310069061.9A CN201310069061A CN104038943B CN 104038943 B CN104038943 B CN 104038943B CN 201310069061 A CN201310069061 A CN 201310069061A CN 104038943 B CN104038943 B CN 104038943B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
Abstract
The invention discloses disturbance coordination method, system and a kind of network node, to avoid up-downgoing cross jamming.This method includes：First network node determines minimum common set, restricted cell and the untethered cell of TDD UL/DL configurations, and the relevant information of minimum common set is notified into the restricted cell to the control of the second network node and the untethered cell of the 3rd network node control；Wherein, the transmission direction of the subframe in minimum common set is kept constant, and restricted cell only allows to carry out data transmission using the subframe in minimum common set, and untethered cell allows to carry out data transmission using whole subframes；The relevant information for the minimum common set that second network node is received and notified according to first network node, Control constraints cell only allow to carry out data transmission using the subframe in minimum common set；The relevant information for the minimum common set that 3rd network node is received and notified according to first network node, controls untethered cell to allow to be carried out data transmission with whole subframes.
Description
Technical field
The present invention relates to communication technical field, more particularly to disturbance coordination method, system and a kind of network node.
Background technology
Time division duplex as one of two big basic duplex systems（Time Division Duplex, TDD）Pattern, in width
Tape movement communication is of increased attention under the ever-increasing background of bandwidth demand.Uplink and downlink in TDD system
Transmission uses identical frequency resource, and uplink/downlink data transfer is carried out by being time-multiplexed.In common TDD system, including
3G TD-SCDMA system and 4G TD-LTE system, the division of uplink and downlink is static or semi-static, common practice
Be in network planning process according to cell type and substantially business proportion determines up-downgoing ratio and keeps constant, this is grand
Cell（Macro Cell）It is relatively simple way under the background covered greatly, and it is also more effective.But as technology is sent out
, there is the low power base station such as increasing Microcell (Pico Cell), Home eNodeB (Home NodeB) and is used for small cover in exhibition
The deployment of lid scope, i.e. Small Cell, in this kind of cell, the possible less and customer service changes in demand of number of users is larger,
Therefore there is the demand of dynamic change in the up-downgoing business proportion of cell.Although current TD-LTE standards are also supported to change cell
Ascending-descending subframes ratio, but it is believed that change cycle is longer, for example change in several days is once, is thus unable to real-time tracking industry
Business situation of change enters the configuration adjustment of Mobile state TDD uplink/downlink.Based on this, LTE R11 introduce dynamic TDD UL/DL configurations, will
The TDD UL/DL configuration change cycles were become for some milliseconds by some days, so as to improve resource utilization ratio.
1) frame structure of LTE TDD systems.
LTE TDD systems include special subframe and the class of conventional subframe two as shown in figure 1, a wireless frame length is 10ms
Totally 10 subframes, each subframe are 1ms.Special subframe is divided into 3 time slots：Descending pilot frequency time slot（Downlink Pilot
Slot, DwPTS）, protection interval (Guard Period, GP) and uplink pilot time slot（Uplink Pilot Slot,
UpPTS）.Conventional subframe is divided into sub-frame of uplink and descending sub frame again, is respectively used to transmit uplink/downlink control signaling and business number
According to etc..
2）LTE TDD UL/DL are configured
LTE TDD systems define altogether 7 kinds of TDD UL/DL configurations following such as, as shown in table 1 below.This 7 kinds of TDD
The characteristics of UL/DL configurations are common is as follows：In one radio frames, two special subframes (subframe #1 and #6) can be configured, can also
Only configure a special subframe (subframe #1)；Under DwPTS time slots in subframe #0 and subframe #5 and special subframe are always used as
Row transmission；UpPTS time slot in subframe #2 and special subframe is always used for uplink；Other subframes can match somebody with somebody according to needs
It is set to and is used as uplink or downlink transfer.
The LTE TDD UL/DL sub-frame configurations of table 1
3）Dynamic TDD UL/DL configuration changes
LTE R8 TDD UL/DL configuration modes are static or semi-static, it is impossible to are flexibly adjusted according to service feature
Whole TDD UL/DL configurations, therefore it is unfavorable for lifting system resource utilization, the quality of service of more preferable guarantee business transmission
（Quality of Service, QoS）.Based on this, LTE TDD UL/DL interference managements and service adaptation strengthen
（Enhancement to LTE TDD for DL-UL Interference Management and Traffic
Adaptation, LTE R11 eIMTA）Project introduces dynamic TDD UL/DL configuration change mechanism, and TDD UL/DL are configured
Change frequency shorten to some milliseconds by some days.When TDD UL/DL configuration changes, base station needs to notify terminal, and current is logical
It is a variety of to know that mechanism has, is simply described below：
Alt1：Broadcast mode
System message update mode or the advice method using similar ETWS can be specifically used, for system message more
The TDD UL/DL configuration change cycles that new paragon allows are 640ms, the TDD UL/ allowed for similar ETWS advice method
The DL configuration change cycles are 320ms.
Alt2：Dedicated signaling mode
Can be specifically wireless heterogeneous networks（Radio Resource Control, RRC）Signaling, medium education
（MAC）Signaling or Physical Downlink Control Channel（Physical Downlink Control Channel, PDCCH）Signaling.
The TDD UL/DL configuration change cycles allowed under RRC signaling mode are about 200ms；The TDD UL/ allowed under MAC signaling methods
The DL configuration change cycles are about tens ms；
The TDD UL/DL configuration change cycles allowed under PDCCH signaling methods are about 10ms or so.
4）Dynamic TDD UL/DL configuration changes under heterogeneous network scene
Statistics shows, traditional macro base station（Macro eNB）Individual layer overlay network can not meet people to data industry
Business speed and capacity increasing need.Therefore, the mode that 3GPP introduces layering networking solves the problem：By in heat
The small overlay environments such as point region, family's indoor environment, working environment lay the base station of some low-power, obtain the effect of cell splitting
Fruit so that operator can provide the user more high data rate, more inexpensive business.Cell under these low power base stations
It is properly termed as Small Cell.MacroCell and Small Cell collectively constitute network and are properly termed as heterogeneous network.
Small Cell allow to configure using dynamic TDD UL/DL under heterogeneous network, but in order to avoid Small Cell
Between cross jamming, Small Cell exactly form several cell clusters by a kind of settling mode（Cell Cluster）,
Identical TDD UL/DL can be used to configure in Cell Cluster, allow to use different TDD between different Cell Cluster
UL/DL is configured.The interference coordination mechanism is referred to as the interference cancellation mechanisms based on Cell Cluster（Cell Clustering
Interference Mitigation, CCIM）, as shown in Figure 2.In addition, Cell Cluster, which there is likely to be, manages the Cell
Cluster cell, can the cell be referred to as Cell Cluster cluster head.
Existing CCIM mechanism can avoid the uplink/downlink cross jamming between Small Cell, but in heterogeneous network
Under, if MacroCell and Small Cell are with frequency or in adjacent band, then if allowing both simultaneous transmissions will
Intersect there may be the uplink/downlink between Macro and Small Cell and between Macro UE and Small Cell UE dry
Disturb.
The content of the invention
The embodiments of the invention provide disturbance coordination method, system and a kind of network node, under heterogeneous network, to keep away
When exempting from MacroCell and Small Cell as with frequency or in adjacent band, both simultaneous transmissions will likely caused Macro
Uplink/downlink cross jamming between Small Cell and between Macro UE and Small Cell UE.
A kind of disturbance coordination method provided in an embodiment of the present invention, including：
First network node determines the minimum common set of TDD up-downgoing UL/DL configurations, restricted cell and non-
Restricted cell, and the relevant information of the minimum common set is notified into the restricted cell and the 3rd to the control of the second network node
The untethered cell of network node control；Wherein, the transmission direction of the subframe in the minimum common set is kept constant, described
Restricted cell only allows to carry out data transmission using the subframe in the minimum common set, and the untethered cell allows to use
Whole subframes carry out data transmission；
The relevant information for the minimum common set that second network node is received and notified according to the first network node, control
Restricted cell processed only allows to carry out data transmission using the subframe in the minimum common set；
The relevant information for the minimum common set that 3rd network node is received and notified according to the first network node, control
Making untethered cell allows to carry out data transmission using whole subframes.
A kind of interference coordination system provided in an embodiment of the present invention, including：
First network node, for determining the minimum common set, limited small of TDD up-downgoing UL/DL configurations
Area and untethered cell, and the relevant information of the minimum common set is notified into the restricted cell to the control of the second network node
With the untethered cell of the 3rd network node control；Wherein, the transmission direction of the subframe in the minimum common set is kept not
Become, the restricted cell only allows to carry out data transmission using the subframe in the minimum common set, the untethered cell
Allow to carry out data transmission using whole subframes；
Second network node, the related of minimum common set for receiving and being notified according to the first network node are believed
Breath, Control constraints cell only allow to carry out data transmission using the subframe in the minimum common set；
3rd network node, the related of minimum common set for receiving and being notified according to the first network node are believed
Breath, controls untethered cell to allow to carry out data transmission using whole subframes.
A kind of network node provided in an embodiment of the present invention, including：
Determining unit, for determine TDD up-downgoing UL/DL configuration minimum common set, restricted cell and
Untethered cell；Wherein, the transmission direction of the subframe in the minimum common set is kept constant, and the restricted cell only allows
Carried out data transmission using the subframe in the minimum common set, the untethered cell allows to enter line number using whole subframes
According to transmission；
Notification unit, for the relevant information of the minimum common set to be notified to restricted cell and untethered cell.
The embodiment of the present invention, by introducing the minimum common set of TDD UL/D L configurations, in TDD UL/DL configurations most
Sub-frame transmission direction in mini-bus set does not allow to change, and the sub-frame transmission direction outside the minimum common set can be carried out
Dynamic adjusts.It can so avoid the cell of the minimum common set of TDD UL/DL configurations being used only and using dynamic TDD UL/
Uplink/downlink cross jamming between the cell of DL configurations.
Brief description of the drawings
Fig. 1 is existing LTE TDD systems structural representation；
Fig. 2 is existing heterogeneous network scene schematic diagram；
Fig. 3 is a kind of schematic flow sheet of disturbance coordination method provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of interference coordination system provided in an embodiment of the present invention.
Embodiment
The embodiments of the invention provide disturbance coordination method, system and a kind of network node, under heterogeneous network, to keep away
When exempting from Macro cell and Small Cell as with frequency or in adjacent band, both simultaneous transmissions will likely be caused
Uplink/downlink cross jamming between Macro and Small Cell and between Macro UE and Small Cell UE.
The minimum common set that the embodiment of the present invention is configured by introducing TDD UL/DL, in the minimum of TDD UL/DL configurations
Sub-frame transmission direction in common set does not allow to change, and the sub-frame transmission direction outside set can enter Mobile state adjustment.This
Sample can avoid being used only the cell of the minimum common set of TDD UL/DL configurations and using the small of dynamic TDD UL/DL configurations
Uplink/downlink cross jamming between area.
Technical scheme provided in an embodiment of the present invention is illustrated below in conjunction with the accompanying drawings.
Referring to Fig. 3, a kind of disturbance coordination method provided in an embodiment of the present invention, including：
S101, first network node determine the minimum common set, limited small of TDD up-downgoing UL/DL configurations
Area and untethered cell, and the relevant information of the minimum common set is notified into the restricted cell to the control of the second network node
With the untethered cell of the 3rd network node control；Wherein, the transmission direction of the subframe in the minimum common set is kept not
Become, the restricted cell only allows to carry out data transmission using the subframe in the minimum common set, the untethered cell
Allow to carry out data transmission using whole subframes；
Wherein, the minimum common set of the TDD UL/DL configurations includes multiple subframes so that one group of cell（Cell
Number >=1）Interior all cells must assure that the sub-frame transmission direction in minimum common set is constant.The TDD UL/DL are configured
Minimum common set can be configured by OAM or central administration node determine, can also be consulted really by each cell in small district's groups
It is fixed.
Small district's groups inside points cell is limited in the present invention only to be allowed in the minimum common set that is configured using TDD UL/DL
Subframe（These cells are referred to as restricted cell, if restricted cell is divided into some clusters again, then are referred to as restricted cell cluster）, and cell
Other cells can then use whole subframes in group（These cells are referred to as untethered cell, if untethered cell can also be divided into
Dry cluster, it is properly termed as untethered cell cluster）.
S102, the second network node receive the minimum common set of the first network node notice, and Control constraints are small
Area only allows to carry out data transmission using the subframe in the minimum common set；
S103, the 3rd network node receive the minimum common set of the first network node notice, and control untethered
Cell allows to carry out data transmission using whole subframes.
In the present invention, the relevant information of the minimum common set is one of following：
The subframe that the minimum common set includes；
Subframe outside the subframe that the minimum common set includes；
Allow the TDD UL/DL configuration sets used.
It is preferred that the first network node determines the minimum common set of TDD up-downgoing UL/DL configurations,
Including：
The first network node receives each cell in district's groups that each cell in small district's groups reports or small and belonged to
The up-downgoing portfolio percent information that reports of cluster head or up-downgoing resource utilization information；
The first network node according to up-downgoing portfolio percent information or up-downgoing resource utilization information, it is determined that
The minimum common set of TDD UL/DL configurations.
It is preferred that this method also includes：
Whether what each cell reported in the small district's groups of the first network node reception supports what dynamic TDD UL/DL were configured
Ability information；Or each cell reports whether support dynamic TDD UL/DL configurations to its cluster head belonged to respectively in small district's groups
Ability information, then receive whether each cell in the cluster supports dynamic TDD from each cluster head by the first network node
The ability information of UL/DL configurations.
Each cell needs to report whether support dynamic TDD UL/DL to OAM or central administration node in i.e. small district's groups
The configured information of configuration, in addition, each cell reports whether it supports dynamic TDD to its cluster head belonged to respectively in small district's groups
The ability information of UL/DL configurations, then receives whether each cell in the cluster needs by the first network node from each cluster head
Open the configured information of dynamic TDD UL/DL configurations.
It is preferred that this method also includes：
Whether each cell reports to the first network node in small district's groups needs to open dynamic TDD UL/DL configurations
Whether each cell reports to its cluster head belonged to need to open dynamic TDD UL/DL respectively in configured information, or small district's groups
The configured information of configuration, then report whether each cell in the cluster needs from the cluster head in cell cluster to the first network node
Open the configured information of dynamic TDD UL/DL configurations.
Whether each cell needs to open the finger of dynamic TDD UL/DL configurations by minizone interactive interfacing in cell cluster
Show information, then obtaining each cell in the small district's groups from one or more cell in small district's groups by first network node is
The no configured information for needing to open dynamic TDD UL/DL configurations.
Either whether small district's groups can report and need to open each cell to OAM or central administration node in i.e. small district's groups
Each cell reports whether it needs to its cluster head belonged to respectively in the configured information or small district's groups of dynamic TDD UL/DL configurations
The ability information of dynamic TDD UL/DL configurations is opened, is then reported respectively to OAM or central administration node from each cluster head
Whether each cell in the cluster needs to open the configured information of dynamic TDD UL/DL configurations.
It is preferred that this method also includes：
Second network node Control constraints cell services the relevant information notice restricted cell of the minimum common set
UE so that UE maintains data transmit-receive in the subframe in the minimum common set, without data transmit-receive in other subframes.
It is preferred that the second network node Control constraints cell by the relevant information of minimum common set notice by
The UE of limit cell serves includes：
Second network node Control constraints cell is believed the correlation of the minimum common set by broadcast or dedicated signaling
The UE of breath notice restricted cell service.
It is preferred that the second network node Control constraints cell by broadcast or dedicated signaling, using bit map bitmap
Mode notifies the relevant information of the minimum common set UE to restricted cell service.
I.e. restricted cell is needed the UE of the minimum common set notice restricted cell service of TDD UL/DL configurations,
UE maintains data transmit-receive in the subframe in the minimum common set that TDD UL/DL are configured, and other subframes are without up/down line number
According to transmitting-receiving.Specific advice method can use broadcast or dedicated signaling（RRC/MAC/PDCCH）, the content of notice can be minimum
Corresponding subframe in common configuration set, it can be notified using bitmap modes.
It is preferred that this method also includes：
Second network node Control constraints cell joins UE physical uplink control channel PUCCH resource or detection
The configuration of signal SRS resource is examined in the subframe that the minimum common set includes.
I.e. in order to ensure UE normal works, restricted cell is needed UE PUCCH resource/detection reference signal（SRS,
sounding reference signal）Deng resource distribution in the subframe that minimum common set includes, meanwhile, it is minimum public
The configuration of set needs to ensure that restricted cell can receive broadcast and paging.
It is preferred that the minimum common set includes the subframe that broadcast and paging are sent.I.e. first network node configures most
To ensure that the UE in restricted cell can receive broadcast and paging during mini-bus set, that is to say, that for the son broadcasted and paged
Frame needs to be included in minimum common set.
It is preferred that the first network node, is oam OAM nodes or central administration node.
It is preferred that the central administration node is macro base station Macro eNB.
It is preferred that when the subframe that the relevant information of the minimum common set is included for minimum common set, described the
The relevant information for the minimum common set that three network nodes notify according to first network node, controls untethered cell to allow to use
Whole subframes carry out data transmission including：
The subframe that 3rd network node includes according to minimum common set, TDD UL/DL configurations are selected, and according to selection
TDD UL/DL configurations control untethered cell to carry out data transmission.
As can be seen here, in the embodiment of the present invention, OAM or central administration node determine that the minimum of TDD UL/DL configurations is public
, it is necessary to notify each cell or cell cluster in the small district's groups, further OAM and central administration node can also be true after coset
The TDD UL/DL configurations that untethered cell or cell cluster use in fixed small district's groups.If notice is TDD UL/DL configurations,
It should be noted that the TDD UL/DL configurations that untethered cell or cell cluster use will ensure in minimum common configuration set
Each sub-frame transmission direction will not change, and other subframes can flexibly select downstream transmission direction.
OAM or central administration node determine the minimum common set of TDD UL/DL configurations, it may be necessary to each in small district's groups
Individual cell or cell cluster provide each cell or the uplink/downlink of each cell cluster in some auxiliary informations, such as small district's groups
Portfolio percent information or uplink/downlink resource utilization information etc..
The introduction of several specific embodiments is given below.
Embodiment 1：
Assumed condition：Small Cell in Macro eNB and its coverage form a small district's groups, Small Cell
Several Small Cell cluster can be divided into again.
Embodiment step is as follows：
Step 1：Determine central administration node and restricted cell and untethered cell
Because Macro eNB provide a wide range of covering, it is possible to select Macro eNB as central administration node.
In view of disturbed condition, Macro eNB may interfere with any one cell in its coverage, therefore can select
The cell under Macro eNB is selected as restricted cell, other Small Cell are as untethered cell.In this case Macro
ENB can know whether Macro cell support the ability information of dynamic TDD configurations and whether need to open dynamic TDD configurations
Configured information, therefore Macro eNB and Small Cell are only described in embodiment（Or Small Cell Cluster）It
Between interaction.
Step 2：Central administration node obtains the ability the letter whether cell of its management supports dynamic TDD UL/DL to configure
Breath.
Macro eNB pass through inter-base station interface（Such as X2 interface or similar interface）Whether obtain each small cell
Support the ability information of dynamic TDD UL/DL configurations.The message can be in X2setup or eNB configuration
Interaction during update.
Step 3：Central administration node assesses whether to need the minimum common set for enabling TDD UL/DL configurations.
As long as one or more in following condition meet, then Macro eNB determine that TDD UL/DL configurations can be enabled most
Mini-bus set:
There are Small Cell in Macro eNB coverages（Or Small Cell Cluster）Support dynamic TDD UL/
DL is configured.
There are some or all of Small Cell under Macro eNB（Or Small Cell Cluster）To Macro eNB
Instruction needs to open dynamic TDD UL/DL configurations.
Macro eNB are according to Small Cell（Or Small Cell Cluster）The auxiliary information of offer determines its covering
In the range of some or all of Small Cell（Or Small Cell Cluster）Need to open dynamic TDD UL/DL configurations.
Small Cell（Or Small Cell Cluster）The auxiliary information of offer can be Small Cell（Or Small Cell
Cluster）Up-downgoing traffic information either up-downgoing portfolio comparative information or uplink/downlink resource utilization information, than
As above/downlink physical resource block utilization rate（UL/DL Physical Resource Block usage, UL/DL PRB
usage)。
Step 4：Central administration node determines the minimum common set of TDD UL/DL configurations.
MacroeNB is according to each Small Cell in Macro UE data transfer demands, Macro eNB coverages
（Or Small Cell Cluster）The auxiliary information of offer, mixed automatic retransfer（HARQ, Hybrid-ARQ）/ scheduling time
（Scheduling timing）, UE receives one or more factor such as the subframe requirement of broadcast or paging and determined under Macro
Determine the minimum common set of TDD UL/DL configurations.With the data transfer demands according to Macro UE, HARQ/Scheduling
Timing, exemplified by meeting Macro UE broadcast reception demand, minimum common set can be determined as follows：Root first
According to Macro UE up-downgoing data transfer demands, it is determined that the uplink/downlink number of sub-frames needed, then according to broadcast reception demand
It is determined that the descending sub frame that must be included（Subframe #0 and subframe #5）Then as long as the selection of other uplink/downlink subframes disclosure satisfy that
Selected UL/DL subframes meet the HARQ/Scheduling timing of TDD system.
Step 5：Central administration node notifies the TDD UL/DL of its determination minimum common sets configured to limited small
Area/cell cluster and untethered cell/cell cluster.
The minimum common set that Macro eNB configure TDD UL/DL notifies Small Cell（Or Small Cell
Cluster）Bitmap modes can be used during with Macro UE under Macro Cell.Such as the minimum of TDD UL/DL configurations
Common set is subframe { 0,1,2,5 }.So bitmap can be expressed as { 1,1,1,0,0,1,0,0,0,0 } or 0,0,0,
1,1,0,1,1,1,1}。
Macro eNB notice Small Cell（Or Small Cell Cluster）With advice method during notice MacroUE
Difference is to notify Small Cell（Or Small Cell Cluster）When be to pass through inter-base station interface（X2 interface or
Similar interface）Notice, and notify then use broadcast or dedicated signaling during UE（RRC, MAC or PDCCH）Mode notifies.
If using RRC signaling, RRC reconstitution process can be used.
Step 6：The minimum common set that untethered cell configures according to TDD UL/DL selects TDD UL/DL configurations.
Small Cell（Or Small Cell Cluster）Receive the minimum common set of TDD UL/DL configurations
Afterwards, the Small Cell can be determined according to itself downstream transmission demand（Or Small Cell Cluster）The TDD used
UL/DL is configured, as long as its TDD UL/DL configuration chosen ensures sub-frame transmission direction and Macro in minimum common set
ENB transmission direction is identical, and the transmission direction of other subframes can be adjusted dynamically.
Step 7：The minimum common set that UE configures according to TDD UL/DL under restricted cell carries out uplink/downlink data biography
It is defeated.
Macro UE only allow to carry out uplink/downlink data in the subframe in the minimum common set of TDD UL/DL configurations
Transmit, do not allow to carry out uplink/downlink data transfer in other subframes.Including：
For descending sub frame, stop PDCCH/ physical down link sharing channels（Physical Downlink Shared
Channel, PDSCH）/ public reference signal（Common Reference Signal, CRS）/ channel condition information reference symbol
（Channel State Infromation-Reference Signal, CSI-RS）Deng reception；
For sub-frame of uplink, stop PUCCH/ physical uplink link shared channels（PUSCH）/ SRS/ packet Stochastic accessing letters
Road（Packet Random Access Channel, PRACH）Deng transmission.
In addition, the configuration such as Macro UE PUCCH/SRS is also required to configure in the subframe in minimum common set.
Step 8：Central administration node carries out the minimum common set adjustment of TDD UL/DL configurations.
Macro Cell subsequently can be according to itself load, Small Cell（Or Small Cell Cluster）Load
Etc. the minimum common set that factor adjusts TDD UL/DL configurations, once the minimum common set of TDD UL/DL configurations occurs
Adjustment, then need repeat step four, five, six, seven.
Embodiment 2：
The embodiment of embodiment 2 is assumed and embodiment 1 is identical, and the main distinction is that the central administration node of embodiment 1 notifies
What restricted cell and untethered cell and restricted cell notified its UE serviced is the minimum public collection of TDD UL/DL configurations
Close, and embodiment 2 notify be TDD UL/DL configuration minimum common set outside sub-frame set.
Embodiment 2 except Step 5: in addition to six, seven, other all sames of step and embodiment 1, only introducing different steps here
Suddenly：
1）Step 5 and the difference of embodiment 1 are：
Macro eNB notify to give Small Cell in step 5 in embodiment 1（Or Small Cell Cluster）And UE
Be TDD UL/DL configuration minimum common set, and notified in embodiment 2 be TDD UL/DL configuration minimum public collection
Other subframes outside conjunction, that is, assume the minimum common sets of the TDD UL/DL configurations that Macro eNB are determined for subframe 0,1,
2,5 }, then the set notified here is { 3,4,6,7,8,9 }.
2）Step 6 and the difference of embodiment 1 are：
Small Cell（Or Small Cell Cluster）When entering Mobile state TDD UL/DL configuration changes, only allow
The uplink/downlink transmission direction of the subframe in set indicated in Macro eNB change step 5.
3）The difference of step 7 and embodiment 1 is：
Macro UE do not allow to carry out uplink/downlink data transfer in the set that Macro eNB are indicated.Including：
For descending sub frame, stop PDCCH/PDSCH/CRS/CSI-RS etc. and receive；
For sub-frame of uplink, stop PUCCH/PUSCH/SRS/PRACH etc. and send.
Embodiment 3：
The embodiment of embodiment 3 is assumed and embodiment 1 is identical, and the main distinction of the embodiment 3 and embodiment 1 is：In
What heart management node notified untethered cell/cell cluster is the specifically used TDD UL/DL configurations of the cell/cell cluster.The reality
The difference for applying example 3 and embodiment 1 essentially consists in step 5 and six, and other steps are identical.
Macro eNB are indicated to Small Cell in the step 5 of embodiment 1（Or Small Cell Cluster）Be TDD
The minimum common set of UL/DL configurations, and Macro eNB are indicated to Small Cell here（Or Small Cell Cluster）
Be then Small Cell（Or Small Cell Cluster）The TDD UL/DL configurations that can specifically use.
For the present embodiment 3, step 6 can be omitted in embodiment 1.
Embodiment 4：
The assumed condition and embodiment 1 of embodiment 4 are identical, and the main distinction of the embodiment 4 and embodiment 2 is：It is limited
What cell notified its service UE is the subframe outside the minimum common set that TDD UL/DL are configured, and is indicated to untethered small
Area/cell cluster is its specifically used TDD UL/DL configuration.The difference of the embodiment 4 and embodiment 2 essentially consists in step 5
With six, other steps are identical.
Macro eNB are indicated to Small Cell in the step 5 of embodiment 2（Or Small Cell Cluster）Be TDD
Sub-frame set outside the minimum common set of UL/DL configurations, and Macro eNB are indicated to Small Cell in the present embodiment 4（Or
Small Cell Cluster）Be then Small Cell（Or Small Cell Cluster）The TDD that can specifically use
UL/DL is configured.
For the present embodiment 4, the step six in embodiment 2 can be omitted.
Embodiment 5：
The assumed condition of embodiment 5 is consistent with embodiment 1, and unlike embodiment 1, is determined in embodiment 5 by OAM
The minimum common set of TDD UL/DL configurations.
Step is as follows：
Step 1：OAM obtains the ability that each cell configures to TDD UL/DL in small district's groups and supports information.
Each cell reports whether it supports dynamic TDD to OAM respectively in the small district's groups of Macro and Small Cell compositions
The ability information of UL/DL configurations.
Step 2：OAM assesses whether to need the minimum common set for enabling TDD UL/DL configurations.
As long as one or more in following condition meet, then OAM determines that the minimum that can enable TDD UL/DL configurations is public
Coset:
There are cell or cell cluster to support dynamic TDD UL/DL configurations in small district's groups.
There is some or all of cell cluster to need to open dynamic TDD UL/DL configurations to OAM instructions in small district's groups.
The auxiliary information that OAM provides according to cell or cell cluster determines that its some or all of cell managed needs to open
Start state TDD UL/DL configurations.Cell either cell cluster to the auxiliary information that OAM is provided can be above and below cell or cell cluster
Row traffic information either up-downgoing portfolio comparative information or uplink/downlink resource utilization information (such as UL/DL PRB
usage)。
Step 3：OAM determines restricted cell/cell cluster and untethered cell/cell cluster.
Restricted cell/cell cluster and untethered cell/cell cluster can be determined according to disturbed condition OAM.Such as by Macro
Cell under eNB is divided into restricted cell/cell cluster, and Small Cell/Small Cell are divided into untethered cell/cell
Cluster.
Step 4：OAM determines the minimum common set of TDD UL/DL configurations.
OAM is according to the data transfer demands in cell cluster, the auxiliary information of each cell offer, HARQ/Scheduling
UE receives one or more factor such as the subframe requirement of broadcast or paging and determines TDD UL/DL under timing, Macro
The minimum common set of configuration.With the data transfer demands according to Macro UE, HARQ/Scheduling timing, meet
Exemplified by MacroUE broadcast reception demand, minimum common set can be determined as follows：First according to Macro UE's
Up-downgoing data transfer demands, it is determined that the uplink/downlink number of sub-frames needed, then determines to include according to broadcast reception demand
Descending sub frame（Subframe #0 and subframe #5）Then as long as the selection of other uplink/downlink subframes disclosure satisfy that selected UL/DL
Frame meets the HARQ/Scheduling timing of TDD system.
Step 5：The TDD UL/DL of its determination minimum common sets configured are notified to give Small Cell by OAM（Or
Small Cell Cluster）With Macro cell.
The minimum common set that OAM configures TDD UL/DL notifies S Small Cell（Or Small Cell
Cluster）With Macro Cell.
ENB notifies the minimum common set that TDD UL/DL are configured to use bitmap modes during Macro UE.Such as
The minimum common set of TDD UL/DL configurations is subframe { 0,1,2,5 }.So bitmap can be expressed as 1,1,1,0,0,1,
0,0,0,0 } or { 0,0,0,1,1,0,1,1,1,1 }.
Macro eNB notify that broadcast or dedicated signaling can be used during Macro UE（RRC, MAC or PDCCH）Mode
Notice.If using RRC signaling, RRC reconstitution process can be used.
Step 6：Small Cell（Or Small Cell Cluster）The minimum public collection that r configures according to TDD UL/DL
Close selection TDD UL/DL configurations.
, can be according to itself after Small cell cluster receive the minimum common set of TDD UL/DL configurations
Downstream transmission demand determines the Small Cell（Or Small Cell Cluster）The TDD UL/DL configurations used, it is selected
As long as the TDD UL/DL configurations taken ensure the sub-frame transmission direction in minimum common set and Macro eNB transmission direction phase
With the transmission direction of other subframes can be adjusted dynamically.
Step 7：The minimum common set that Macro UE configure according to TDD UL/DL carries out uplink/downlink data transfer.
MacroUE only allows to carry out uplink/downlink data biography in the subframe in the minimum common set of TDD UL/DL configurations
It is defeated, do not allow to carry out uplink/downlink data transfer in other subframes.Including：
For descending sub frame, stop PDCCH/PDSCH/CRS/CSI-RS etc. and receive；
For sub-frame of uplink, stop PUCCH/PUSCH/SRS/PRACH etc. and send；
In addition, the configuration such as MacroUE PUCCH/SRS is also required to configure in the subframe in minimum common set.
Step 8：OAM carries out the minimum common set adjustment of TDD UL/DL configurations.
OAM can subsequently adjust TDD UL/DL configurations most according to the auxiliary information that each cell reports in cell cluster
Mini-bus set, once the TDD UL/DL configuration minimum common set adjust, then need repeat step four, five,
6th, seven.
Explanation：Similar with embodiment 2/3/4, OAM is notified to restricted cell/cell cluster and untethered cell/cell cluster
Can also be the sub-frame set outside TDD UL/DL configuration sets, OAM notify can also be to untethered cell/cell cluster
Its TDD UL/DL is configured, and flow is similar with embodiment 5, will not enumerate here.
Embodiment 6：
Using a Small Cell Cluster as one group of cell, wherein there is cell not support dynamic TDD UL/DL to configure
Exemplified by.
Step is as follows：
Step 1：Central administration node obtains the energy whether each cell of its management supports dynamic TDD UL/DL to configure
Force information, the main plot in Small Cell Cluster can be used as central administration node.
The information that main plot interacts when can establish or update according to cell interface（Such as X2setup or eNB
configuration update）The dynamic TDD UL/DL allocative abilities of middle carrying support information to determine the Small Cell
Which cell supports dynamic TDD UL/DL configurations in Cluster.
Step 2：Central administration node determines restricted cell and untethered cell.
Main plot in Small Cell Cluster（Cluster head）Dynamic can will be supported in Small Cell Cluster
The cell of TDD UL/DL configurations is as untethered cell, and other cells are as restricted cell.
Step 3：Central administration node assesses whether to need the minimum common set for enabling TDD UL/DL configurations.
As long as one or more in following condition meet, then main plot determines that TDD UL/DL configurations can be enabled most
Mini-bus set:
There are Small Cell to support dynamic TDD UL/DL configurations in Small Cell Cluster.
There is some or all of cell to need to open dynamic TDD UL/ to main plot instruction in Small Cell Cluster
DL is configured.
Main plot determines what it was managed according to the auxiliary information that each cell provides in it in Small Cell Cluster
Some or all of cell needs to open dynamic TDD UL/DL configurations.The auxiliary information that cell provides can be cell or small
Area's cluster up-downgoing traffic information either up-downgoing portfolio comparative information or uplink/downlink resource utilization information (such as UL/
DL PRB usage)。
Step 4：Central administration node determines the minimum common set of TDD UL/DL configurations.
Main plot in Small cell cluster passes according to the data of each cell in Small Cell Cluster
UE receives broadcast or sought under defeated demand, the auxiliary information of each cell offer, HARQ/Scheduling timing, Macro
One or more factor such as the subframe requirement exhaled determines the minimum common set of TDD UL/DL configurations.With according to Macro
UE data transfer demands, HARQ/Scheduling timing, exemplified by meeting Macro UE broadcast reception demand, can be by
Minimum common set is determined according to following manner：First according to Macro UE up-downgoing data transfer demands, it is determined that need it is upper/
Descending sub frame number, the descending sub frame that must be included then is determined according to broadcast reception demand（Subframe #0 and subframe #5）, then
As long as the selection of other uplink/downlink subframes disclosure satisfy that selected UL/DL subframes meet the HARQ/Scheduling of TDD system
Timing.
Step 5：Central administration node notifies its determination TDD UL/DL minimum common sets configured to restricted cell
The minimum common set for configuring TDD UL/DL with untethered cell main plot passes through cell interface（Such as X2 interface or class
Like interface）Notify the restricted cell in Small Cell Cluster and untethered cell.Restricted cell receives the TDD UL/
Also needed to after the minimum common set of DL configurations by broadcast or dedicated signaling（RRC, MAC or PDCCH）Mode notifies it
The UE of service.If using RRC signaling, RRC reconstitution process can be used.
Notice can use bitmap modes.Such as TDD UL/DL configuration minimum common set for subframe 0,1,2,
5}.So bitmap can be expressed as { 1,1,1,0,0,1,0,0,0,0 } or { 0,0,0,1,1,0,1,1,1,1 }.
Further main plot can also directly determine the TDD UL/DL configurations of untethered cell, and pass through inter-base station interface
Notify to untethered cell.In this case, optionally, main plot can be not longer notified about untethered cell TDD UL/DL configurations
Minimum common set.
Step 6：The UE of restricted cell service behavior.
The UE of restricted cell only allows to carry out uplink/downlink in the subframe in the minimum common set of TDD UL/DL configurations
Data transfer, do not allow in other subframes to carry out uplink/downlink data transfer.Including：
For descending sub frame, stop PDCCH/PDSCH/CRS/CSI-RS etc. and receive；
For sub-frame of uplink, stop PUCCH/PUSCH/SRS/PRACH etc. and send；
In addition, the configuration such as PUCCH/SRS of restricted cell is also required to configure in the subframe in minimum common set.
Step 7：Central administration node carries out the minimum common set adjustment of TDD UL/DL configurations.
Main plot can be subsequently somebody's turn to do according to the auxiliary information adjustment that each cell in the Small Cell Cluster reports
The minimum common set of TDD UL/DL configurations, once the minimum common set of TDD UL/DL configurations adjusts, then needs
Want repeat step four, five, six.
Referring to Fig. 4, a kind of interference coordination system provided in an embodiment of the present invention, including：
First network node 11, for determining the minimum common set of TDD up-downgoing UL/DL configurations, being limited
Cell and untethered cell, and the relevant information of the minimum common set is notified to the limited small of the second network node control
Area and the untethered cell of the 3rd network node control；Wherein, the transmission direction of the subframe in the minimum common set is kept
Constant, the restricted cell only allows to carry out data transmission using the subframe in the minimum common set, described untethered small
Area allows to carry out data transmission using whole subframes；
Second network node 12, the related letter of the minimum common set notified for receiving the first network node 11
Breath, and Control constraints cell only allows to carry out data transmission using the subframe in the minimum common set；
3rd network node 13, for the correlation for the minimum common set for receiving and being notified according to the first network node
Information, untethered cell is controlled to allow to carry out data transmission using whole subframes.
It is preferred that the first network node 11 receive it is each small in district's groups that each cell in small district's groups reports or small
The up-downgoing portfolio percent information or up-downgoing resource utilization information that the cluster head that area is belonged to reports；According to up-downgoing business
Percent information or up-downgoing resource utilization information are measured, determines the minimum common set of TDD UL/DL configurations.
It is preferred that the first network node 11 receive that each cell in small district's groups reports whether support dynamic TDD
The ability information of UL/DL configurations；Or each cell reports whether support dynamic to its cluster head belonged to respectively in small district's groups
The ability information of TDD UL/DL configurations, then the first network node 11 receives each cell in the cluster from each cluster head is
The ability information of no support dynamic TDD UL/DL configurations.
It is preferred that
Whether each cell reports to the first network node 11 in small district's groups needs to open dynamic TDD UL/DL configurations
Configured information, or whether each cell reports to its cluster head belonged to need to open dynamic TDD UL/ respectively in small district's groups
The configured information of DL configurations, then receives whether each cell in the cluster needs by the first network node 11 from each cluster head
Open the configured information of dynamic TDD UL/DL configurations.
It is preferred that
The Control constraints cell of second network node 12 notifies the relevant information of the minimum common set limited small
The UE of area's service so that UE maintains data transmit-receive in the subframe in the minimum common set, without number in other subframes
According to transmitting-receiving.
It is preferred that the Control constraints cell of the second network node 12 leads to the relevant information of the minimum common set
Knowing the UE of restricted cell service includes：
The Control constraints cell of second network node 12 is by broadcast or dedicated signaling by the minimum common set
The UE of relevant information notice restricted cell service.
It is preferred that the Control constraints cell of the second network node 12 by broadcast or dedicated signaling, using bit map
Bitmap modes notify the relevant information of the minimum common set UE to restricted cell service.
It is preferred that the Control constraints cell of the second network node 12 is by UE physical uplink control channel PUCCH
Resource or detection are configured in the subframe that the minimum common set includes with reference signal SRS resource.
It is preferred that the minimum common set includes the subframe that broadcast and paging are sent.
It is preferred that the first network node 11, is oam OAM nodes or central administration node.
It is preferred that the central administration node is macro base station Macro eNB.
It is preferred that the relevant information of the minimum common set is one of following message：
The subframe that the minimum common set includes；
Subframe outside the subframe that the minimum common set includes；
Allow the TDD UL/DL configuration sets used.
Correspondingly, a kind of network node provided in an embodiment of the present invention, i.e., above-mentioned first network node, including：
Determining unit, for determine TDD up-downgoing UL/DL configuration minimum common set, restricted cell and
Untethered cell；Wherein, the transmission direction of the subframe in the minimum common set is kept constant, and the restricted cell only allows
Carried out data transmission using the subframe in the minimum common set, the untethered cell allows to enter line number using whole subframes
According to transmission；
Notification unit, for the relevant information of the minimum common set to be notified to restricted cell and untethered cell.
Preferably, the determining unit, receives each cell institute in district's groups that each cell in small district's groups reports or small
The up-downgoing portfolio percent information or up-downgoing resource utilization information that the cluster head of ownership reports；According to up-downgoing portfolio
Percent information or up-downgoing resource utilization information, determine the minimum common set of TDD UL/DL configurations.
Preferably, the network node also includes：
Ability information receiving unit, for receive that each cell in small district's groups reports whether support dynamic TDD UL/DL
The ability information of configuration；Or whether propped up for receiving each cell that the cluster head that each cell is belonged in small district's groups reports
Hold the ability information of dynamic TDD UL/DL configurations.
Preferably, the network node also includes：
Configured information receiving unit, dynamic TDD is opened for whether needing of receiving that each cell in small district's groups reports
The configured information of UL/DL configurations, or be for receiving each cell that the cluster head that each cell is belonged in small district's groups reports
The no configured information for needing to open dynamic TDD UL/DL configurations.
Preferably, the network node, is oam OAM nodes or central administration node.
Preferably, the central administration node is macro base station Macro eNB.
In summary, disturbance coordination method and system under being configured The present invention gives a kind of dynamic TDD UL/DL, that is, draw
Enter the minimum common set of TDD UL/DL configurations, the sub-frame transmission direction in the minimum common set of TDD UL/DL configurations is not
Allow to change, the sub-frame transmission direction outside set can enter Mobile state adjustment.It can so avoid matching somebody with somebody using only TDD UL/DL
Uplink/downlink cross jamming between the cell for the minimum common set put and the cell for using dynamic TDD UL/DL configurations.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
Usable storage medium（Including but not limited to magnetic disk storage and optical memory etc.）The shape of the computer program product of upper implementation
Formula.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The system for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of system, the instruction system realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (31)
1. a kind of disturbance coordination method, it is characterised in that this method includes：
First network node determines the minimum common set of TDD up-downgoing UL/DL configurations, restricted cell and untethered
Cell, and the relevant information of the minimum common set is notified into the restricted cell to the control of the second network node and the 3rd network
The untethered cell of node control；Wherein, the transmission direction of the subframe in the minimum common set is kept constant, described limited
Cell only allows to carry out data transmission using the subframe in the minimum common set, and the untethered cell allows using all
Subframe carries out data transmission；
Second network node receive and according to the first network node notify minimum common set relevant information, control by
Limit cell only allows to carry out data transmission using the subframe in the minimum common set；
The relevant information for the minimum common set that 3rd network node is received and notified according to the first network node, control are non-
Restricted cell allows to carry out data transmission using whole subframes.
2. according to the method for claim 1, it is characterised in that the first network node is determined above and below TDD
The minimum common set of row UL/DL configurations, including：
The first network node receives the cluster that each cell is belonged in district's groups that each cell in small district's groups reports or small
The up-downgoing portfolio percent information or up-downgoing resource utilization information that head reports；
The first network node determines TDD according to up-downgoing portfolio percent information or up-downgoing resource utilization information
The minimum common set of UL/DL configurations.
3. according to the method for claim 1, it is characterised in that this method also includes：
The first network node receives the ability for whether supporting dynamic TDD UL/DL to configure that each cell in small district's groups reports
Information；Or each cell reports the energy for whether supporting that dynamic TDD UL/DL are configured to its cluster head belonged to respectively in small district's groups
Force information, then receive whether each cell in the cluster supports dynamic TDD UL/ from each cluster head by the first network node
The ability information of DL configurations.
4. according to the method for claim 1, it is characterised in that this method also includes：
Each cell reports the instruction for whether needing to open dynamic TDD UL/DL configurations to the first network node in small district's groups
Whether each cell reports to its cluster head belonged to need to open dynamic TDD UL/DL configurations respectively in information, or small district's groups
Configured information, then by the first network node from each cluster head receive each cell in the cluster whether need open dynamic
The configured information of TDD UL/DL configurations.
5. according to the method for claim 1, it is characterised in that this method also includes：
The UE that second network node Control constraints cell services the relevant information notice restricted cell of the minimum common set,
So that UE maintains data transmit-receive in the subframe in the minimum common set, without data transmit-receive in other subframes.
6. according to the method for claim 5, it is characterised in that described in the second network node Control constraints cell general most
The UE of the relevant information notice restricted cell service of mini-bus set includes：
Second network node Control constraints cell is led to the relevant information of the minimum common set by broadcast or dedicated signaling
Know the UE of restricted cell service.
7. according to the method for claim 6, it is characterised in that the second network node Control constraints cell is by broadcast or specially
With signaling, the relevant information of the minimum common set is notified to restricted cell service using bit map bitmap modes
UE。
8. according to the method for claim 1, it is characterised in that this method also includes：
Second network node Control constraints cell is by UE physical uplink control channel PUCCH resource or detection with reference to letter
The configuration of number SRS resource is in the subframe that the minimum common set includes.
9. according to the method for claim 1, it is characterised in that the minimum common set includes broadcast and pages what is sent
Subframe.
10. according to the method described in claim any one of 1-9, it is characterised in that the first network node, be Operation and Maintenance
Manage OAM nodes or central administration node.
11. according to the method for claim 10, it is characterised in that the central administration node is macro base station Macro eNB.
12. according to the method described in claim any one of 1-9, it is characterised in that the relevant information of the minimum common set
To be one of following：
The subframe that the minimum common set includes；
Subframe outside the subframe that the minimum common set includes；
Allow the TDD UL/DL configuration sets used.
13. according to the method for claim 12, it is characterised in that when the relevant information of the minimum common set is minimum
During the subframe that common set includes, the correlation for the minimum common set that the 3rd network node notifies according to first network node
Information, untethered cell is controlled to allow to carry out data transmission including using whole subframes：
The subframe that 3rd network node includes according to minimum common set, TDD UL/DL configurations are selected, and according to the TDD of selection
UL/DL configurations control untethered cell to carry out data transmission.
14. a kind of interference coordination system, it is characterised in that the system includes：
First network node, for determine TDD up-downgoing UL/DL configuration minimum common set, restricted cell and
Untethered cell, and the relevant information of the minimum common set is notified into the restricted cell and the to the control of the second network node
The untethered cell of three network nodes control；Wherein, the transmission direction of the subframe in the minimum common set keeps constant, institute
Stating restricted cell only allows to carry out data transmission using the subframe in the minimum common set, and the untethered cell allows to make
Carried out data transmission with whole subframes；
Second network node, for receive and according to the first network node notify minimum common set relevant information,
Control constraints cell only allows to carry out data transmission using the subframe in the minimum common set；
3rd network node, for receive and according to the first network node notify minimum common set relevant information,
Untethered cell is controlled to allow to carry out data transmission using whole subframes.
15. system according to claim 14, it is characterised in that the first network node receives each small in small district's groups
The up-downgoing portfolio percent information or up-downgoing money that the cluster head that each cell is belonged in district's groups that area reports or small reports
Source utilization rate information；According to up-downgoing portfolio percent information or up-downgoing resource utilization information, determine that TDD UL/DL are configured
Minimum common set.
16. system according to claim 14, it is characterised in that
The first network node receives the ability for whether supporting dynamic TDD UL/DL to configure that each cell in small district's groups reports
Information；Or each cell reports the energy for whether supporting that dynamic TDD UL/DL are configured to its cluster head belonged to respectively in small district's groups
Force information, then the first network node receive whether each cell in the cluster supports dynamic TDD UL/DL from each cluster head
The ability information of configuration.
17. system according to claim 14, it is characterised in that
Each cell reports the instruction for whether needing to open dynamic TDD UL/DL configurations to the first network node in small district's groups
Whether each cell reports to its cluster head belonged to need to open dynamic TDD UL/DL configurations respectively in information, or small district's groups
Configured information, then by the first network node from each cluster head receive each cell in the cluster whether need open dynamic
The configured information of TDD UL/DL configurations.
18. system according to claim 14, it is characterised in that
The second network node Control constraints cell services the relevant information notice restricted cell of the minimum common set
UE so that UE maintains data transmit-receive in the subframe in the minimum common set, without data transmit-receive in other subframes.
19. system according to claim 18, it is characterised in that the second network node Control constraints cell is by described in
The UE of the relevant information notice restricted cell service of minimum common set includes：
The second network node Control constraints cell is believed the correlation of the minimum common set by broadcast or dedicated signaling
The UE of breath notice restricted cell service.
20. system according to claim 19, it is characterised in that the second network node Control constraints cell passes through wide
Broadcast or dedicated signaling, notified the relevant information of the minimum common set to restricted cell using bit map bitmap modes
The UE of service.
21. system according to claim 14, it is characterised in that the second network node Control constraints cell is by UE's
Physical uplink control channel PUCCH resource or detection are configured in the minimum common set bag with reference signal SRS resource
In the subframe contained.
22. system according to claim 14, it is characterised in that the minimum common set includes broadcast and paging is sent
Subframe.
23. according to the system described in claim any one of 14-22, it is characterised in that the first network node, tieed up for operation
Pillar manages OAM nodes or central administration node.
24. system according to claim 23, it is characterised in that the central administration node is macro base station Macro eNB.
25. according to the system described in claim any one of 14-22, it is characterised in that the related letter of the minimum common set
Cease to be one of following：
The subframe that the minimum common set includes；
Subframe outside the subframe that the minimum common set includes；
Allow the TDD UL/DL configuration sets used.
26. a kind of network node, it is characterised in that the network node includes：
Determining unit, for determine TDD up-downgoing UL/DL configuration minimum common set, restricted cell and it is non-by
Limit cell；Wherein, the transmission direction of the subframe in the minimum common set is kept constant, and the restricted cell only allows to use
Subframe in the minimum common set carries out data transmission, and the untethered cell allows to carry out data biography using whole subframes
It is defeated；
Notification unit, for the relevant information of the minimum common set to be notified to restricted cell and untethered cell.
27. network node according to claim 26, it is characterised in that the determining unit, receive each in small district's groups
The up-downgoing portfolio percent information or up-downgoing that the cluster head that each cell is belonged in district's groups that cell reports or small reports
Resource utilization information；According to up-downgoing portfolio percent information or up-downgoing resource utilization information, determine that TDD UL/DL match somebody with somebody
The minimum common set put.
28. network node according to claim 26, it is characterised in that the network node also includes：
Ability information receiving unit, for receive that each cell in small district's groups reports whether support dynamic TDD UL/DL are configured
Ability information；Or for receiving whether each cell that the cluster head that each cell is belonged in small district's groups reports is supported to move
The ability information of state TDD UL/DL configurations.
29. network node according to claim 26, it is characterised in that the network node also includes：
Configured information receiving unit, dynamic TDD UL/DL are opened for whether needing of receiving that each cell in small district's groups reports
The configured information of configuration, or whether needed for receiving each cell that the cluster head that each cell is belonged in small district's groups reports
Open the configured information of dynamic TDD UL/DL configurations.
30. according to the network node described in any claims of claim 26-29, it is characterised in that the network node, for operation
Maintenance management OAM nodes or central administration node.
31. network node according to claim 30, it is characterised in that the central administration node is macro base station Macro
eNB。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069061.9A CN104038943B (en) | 2013-03-05 | 2013-03-05 | Disturbance coordination method, system and a kind of network node |
| PCT/CN2014/071186 WO2014134985A1 (en) | 2013-03-05 | 2014-01-23 | Interference coordination method and system, and network node |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310069061.9A CN104038943B (en) | 2013-03-05 | 2013-03-05 | Disturbance coordination method, system and a kind of network node |
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| CN107852695B (en) | 2015-08-12 | 2020-08-14 | 华为技术有限公司 | Method and device for determining cell cluster subframe configuration |
| EP3566486A1 (en) | 2017-01-09 | 2019-11-13 | Telefonaktiebolaget LM Ericsson (publ) | Coordination of duplex directions in nr tdd system |
| CN108667550B (en) * | 2017-03-28 | 2020-02-14 | 华为技术有限公司 | Interference coordination method and device |
| CN108366429B (en) * | 2018-02-09 | 2021-12-24 | 京信网络系统股份有限公司 | Method and device for adjusting uplink and downlink time slots |
| CN110139370B (en) * | 2018-02-09 | 2022-01-11 | 华为技术有限公司 | Information indication method, communication device and communication system |
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| CN102340344B (en) * | 2010-07-27 | 2015-03-25 | 电信科学技术研究院 | Method for avoiding interference between base stations in heterogeneous network, and equipment |
| JP2012129793A (en) * | 2010-12-15 | 2012-07-05 | Ntt Docomo Inc | Base station and method for notification of protection sub-frame usage situation |
| CN102026209B (en) * | 2010-12-21 | 2014-04-16 | 大唐移动通信设备有限公司 | Method, system and device for transmitting information and configuring subframes |
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2014
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| CN104038943A (en) | 2014-09-10 |
| WO2014134985A1 (en) | 2014-09-12 |
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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 |
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Effective date of registration: 20210602 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 |