CN104811916B - A method of being used for transmission network-assist information - Google Patents
A method of being used for transmission network-assist information Download PDFInfo
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- CN104811916B CN104811916B CN201410043794.XA CN201410043794A CN104811916B CN 104811916 B CN104811916 B CN 104811916B CN 201410043794 A CN201410043794 A CN 201410043794A CN 104811916 B CN104811916 B CN 104811916B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
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Abstract
The present invention provides a kind of methods being used for transmission network-assist information.According to embodiment of the present invention, it proposes a kind of method being used for transmission network-assist information in serving BS, includes the following steps：The first instruction information is sent to interference base station, the first instruction information is used to indicate the receiver type of the first user equipment；The first signaling is received from interference base station comprising the semi-static parameter of cell hierarchy, and receive the second signaling from interference base station comprising the semi-static parameter of Physical Resource Block level；First network auxiliary information is sent to the first user equipment comprising the semi-static parameter of cell hierarchy, and send the second network-assist information to the first user equipment comprising the semi-static parameter of Physical Resource Block level；And negotiate to determine the structure of resource set with interference base station, wherein resource set includes multiple Physical Resource Block, and serving BS is scheduled using the first user equipment of at least one of resource set Physical Resource Block pair.
Description
Technical field
The present invention relates to mobile communication technology more particularly to a kind of methods being used for transmission network-assist information.
Background technology
The requirement of data application is supported to drive research and development with high handling capacity and spectrum efficiency mobile network at present
The demand of 4G networks based on OFDM, this includes WiMAX, 3GPP LTE and LTE-A.LTE and LTE-A is interference-limited system
System is located in the region with intensive cell.Therefore, the important research project of LTE and lte-a system is minizone
Interference is eliminated.In the discussion of Release-8/9, it is proposed that the inter-cell interference between the macrocell based on RNTP/HII/0I disappears
It removes.In the discussion of Release-10, CoMP and almost blank subframe are proposed for the interference between macrocell and Microcell
It eliminates.In Release-11, the FeICIC AF panels of the CRS with NAICS and elimination are proposed for further property
It can improve.
However, in order to deal with the data service with exponential increase, intensive cell arrangements and improved cell frequency are needed
Spectrum efficiency.Cochannel interference (co-channel interference) (is either caused still by inter-cell interference by adjusting jointly
User in the cell of degree causes) all it is main limiting factor for obtaining better network capabilities.With disappearing for transmission equipment side
Except compared to, receiving side AF panel or eliminate also be capable of providing significant performance gain.In sphere of learning, it has already been proven that string
Row interference is eliminated and parallel interference canceller is capable of providing significant performance gain.In view of above-mentioned gain,
In RAN#59 meetings, research project：(Network Assisted are eliminated and are inhibited in NAICS interference for LTE
Interference Cancellation and Suppression, NAICS) RAN1 and RAN4 be agreed for
The research project of Release-12, the advantages of to assess NAICS and feasible method.
In NAICS, network provides the downlink transfer information of interfered cell to the user equipment being disturbed, so should be by dry
The user equipment disturbed can realize interference elimination/inhibition (IC/IS).The downlink transfer information is referred to as NAICS information by us,
That is network-assist information.NAICS information can be by serving cell transmission to the user equipment being disturbed, such as 1 institute of mechanism in Fig. 1
Show, or be directly transferred to the user equipment being disturbed by interfered cell, as shown in the mechanism 2 in Fig. 1.In view of moving for scheduling
Step response and X2 coordinate delay, mechanism 1 may be more suitable for ideal backhaul situation and mechanism 2 may be more suitable for it is non-ideal
Backhaul situation.
In RAN1#75, the network that several configured transmissions are needed as the possibility in NAICS embodiments is listed below
Auxiliary information.
According to higher level parameters (such as transmission mode (TM), cell ID, the multicast/multicast single-frequency network network of Current standards configuration
(MBSFN) subframe, cell reference signals antenna port (CRS) antenna port, power ratio instruction a (PA), power ratio indicate b
(PB)；
According to the parameter of the dynamic signaling of Current standards configuration, (such as control format instruction (CFI), pre-coding matrix refer to
Show (PMI), order instruction (RI), modulation coding scheme (MCS), resource allocation, demodulated reference signal port, the demodulation for TM10
Reference signal identifies)
Other with arrange that (such as synchronous, cyclic prefix (CP), subframe indicate (to be used to indicate two eNB for relevant parameter
Between differ several subframes in time domain))
In addition, compared with requiring NAICS to receive all interference parameters of machine testing, such as some following network signal/associations
The performance of robustness can be improved in favor of the complexity of reduction receiver and/or in cell and under intercell interference scenario by adjusting：
It can be considered, for being needed further to study by the configured transmission of signalling and reception machine testing, to note
Meaning auxiliary signal can be different from configured transmission；
Some configured transmissions can be detected or the corresponding signaling of these parameters can be introduced into, these auxiliary letters
High-level signaling can be used by enabling, and be high-rise configuration or dynamic without taking relevant configured transmission into account；
If having enough system-level gains, it can be considered that some dynamic auxiliary signalings, and can coordinate
Some dynamic parameters；
Can being coordinated with other arrangements of relating to parameters or detected；
Semi-static coordination signaling or coordination is suitable for non-ideal backhaul；
It is dynamic to coordinate only to be feasible in ideal backhaul；
Other possible physical layers influence to need further research (for example, information feedback).
However, before the content in being optionally comprised in network-assist information, need to recognize some problems in advance：
Which user equipment is included in during NAICS.Of course not all user equipmenies will be all included in
During NAICS, network needs to know which user equipment can and also be adapted for executing NAICS.
Which kind of network-assist information user equipment needs.According to the variety classes of potential network-assist information, the network
Auxiliary information can be classified into such as scheduling parameter multidate information such as DRS (Dedicated Reference Signal) antenna port configuration
Semi-static information.For semi-static information, it is suitble to for example to pass through the semi-static of the wireless heterogeneous networks of serving cell (RRC)
Mode is transmitted.For multidate information, it is suitble to be transmitted with the dynamical fashion of such as Downlink Control Information (DCI).In addition, right
Grade, channel estimation (E-LMMSE-IRC), symbol level based on interference rejection combining are eliminated in the different interference of receiver
Interference eliminate the interference of (SLIC) or bit level and eliminate (CWIC), the network-assist information needed is also different.
Therefore the angle designed from the size of payload, network are also required to know configuration as above.
Although background technology although having identified potential network-assist information, do not design clearly about
How network-assist information to be transferred to the user equipment that can carry out NAICS, especially for dynamic characteristic parameter.In addition,
From the angle of payload, the user equipment that can carry out NAICS is given also to be difficult all possible dynamic message transmission.
Invention content
It is considered based on above-mentioned, proposes that a kind of to be used for transmission network in serving BS auxiliary according to the first aspect of the invention
The method of supplementary information, the network-assist information is by the first user equipment for carrying out inter-cell interference cancellation, wherein described the
One user equipment is administered by serving BS, and first user equipment is by least one interference base station potential interference, institute
The method of stating includes the following steps：The first instruction information is sent to the interference base station, the first instruction information is used to indicate institute
State the receiver type of the first user equipment；From the interference base station receive the first signaling comprising cell hierarchy it is semi-static
Parameter, and receive the second signaling from the interference base station comprising the semi-static parameter of Physical Resource Block level；To described
One user equipment sends first network auxiliary information comprising the semi-static parameter of the cell hierarchy, and to described first
User equipment sends the second network-assist information comprising the semi-static parameter of the Physical Resource Block level；And with it is described
Interference base station is negotiated to determine the structure of resource set, wherein the resource set includes multiple Physical Resource Block, and the service base
It stands and first user equipment is scheduled using at least one of resource set Physical Resource Block.
According to the second aspect of the invention, it is proposed that a kind of side being used for transmission network-assist information in interference base station
Method, the network-assist information is by the first user equipment for carrying out inter-cell interference cancellation, wherein first user equipment
It is administered by serving BS, and first user equipment, by the interference base station potential interference, the method includes as follows
Step：The first instruction information is received from the serving BS, the first instruction information is used to indicate first user equipment
Receiver type；The first signaling is sent to the serving BS comprising the semi-static parameter of cell hierarchy, and to described
Serving BS sends the second signaling comprising the semi-static parameter of Physical Resource Block level；Negotiate to determine with the serving BS
The structure of resource set, wherein the resource set includes multiple Physical Resource Block, and the serving BS uses the resource set
At least one of Physical Resource Block first user equipment is scheduled；And connecing according to first user equipment
Receipts machine type determines dynamic parameter, and third network-assist information is sent to first user equipment, wherein described
Three network-assist informations include the dynamic parameter, and the wherein described dynamic parameter by the interference base station in the resource set
On at least one user equipment for being administered to it be scheduled.
According to the third aspect of the invention we, it is proposed that a kind of to be used for transmission network-assist information in the first user equipment
Method, the network-assist information is by first user equipment for carrying out inter-cell interference cancellation, wherein described first uses
Family equipment is administered by serving BS, and first user equipment is by least one interference base station potential interference, the side
Method includes the following steps：The first instruction information is sent to the serving BS, the first instruction information is used to indicate described the
The receiver type of one user equipment；First network auxiliary information is received from the serving BS comprising the half of cell hierarchy
Static parameter, and from the serving BS receive the second network-assist information comprising Physical Resource Block level it is semi-static
Parameter；And receive third network-assist information from least one interference base station comprising dynamic parameter.
Through the invention, interfered cell can generate semi-static and dynamic net according to the user equipment demand being disturbed
Network auxiliary information.This is realized by the coordination with serving BS.And the concept of resource set is introduced in the present invention,
This enables to the implementation for NAICS more effectively and more targeted.Here, resource set refers to being reported to those
There is serving BS the user equipment (such as first user equipment) of NAICS abilities and requirement, serving BS joint is interfered base
It stands or automatically determines one piece of resource set (it is made of multiple Physical Resource Block in one embodiment of the invention), and take
Business base station can only be scheduled the user equipment being disturbed using the Physical Resource Block in the resource set.
In addition, the present invention also classifies the transmission of network-assist information for semi-static and dynamic.For semi-static network
Auxiliary information, network-assist information will be coordinated by interference base station and be transmitted by serving BS.And dynamic network is assisted believing
Breath will be then sent directly to by interference base station by dry in a manner of Physical Resource Block grade by using a kind of new DCI format
Disturb user equipment.
It solves the problems, such as the potential parameter in network-assist information well as a result, that is, has distinguished in these parameters
Which is semi-static or dynamic, and how to transmit these parameters.
To sum up, the invention also provides a kind of embodiments of new network-assist information.It is that a kind of be directed to is being interfered
The new network-assist information application specific architecture of all required parameters of cell configuration.From the angle of granularity, this new network is auxiliary
Supplementary information can be separated in whole bandwidth rank, and can be divided from the angle of length according to Physical Resource Block rank
It opens, and can be divided into semi-static and multidate information from the angle in period.According to the biography loser of network-assist information, new net
Network auxiliary information can be divided into serving cell transmission and interfered cell transmission network-assist information.Serving cell transmission
Network-assist information is based on the coordination for semi-static information with interfered cell.The network-assist information of interfered cell transmission
It is the blind decoding of the user equipment based on serving cell.Therefore, semi-static and dynamic network-assist information according to the present invention
Implement easy, for user equipment and it is extremely simple easily.
Various aspects of the invention will be more clear by the explanation of embodiment in detail below.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent：
Fig. 1 shows the scene graph for carrying out inter-cell interference cancellation；
Fig. 2 shows the scene graph according to an embodiment of the invention for carrying out inter-cell interference cancellation；
Fig. 3 shows the flow chart of the method according to an embodiment of the invention for being used for transmission network-assist information；
Fig. 4 shows the flow chart according to an embodiment of the invention for negotiating to determine the structure of resource set；With
And
Fig. 5 shows the flow chart of the structure for negotiating to determine resource set according to another embodiment of the invention；
And
Fig. 6 shows the form schematic diagram of the DCI according to an embodiment of the invention for being used for transmission dynamic parameter；
Fig. 7 shows a kind of example format signal of physical resource block message according to an embodiment of the invention
Figure；
Fig. 8 shows a kind of example format signal of physical resource block message according to another embodiment of the invention
Figure；And
Fig. 9 shows a kind of example format signal of physical resource block message according to still another embodiment of the invention
Figure.
Run through different diagrams in the figure, same or similar reference numeral indicates identical or corresponding component or spy
Sign.
Specific implementation mode
The present invention is other than proposing which kind of content is included in network-assist information, it is also proposed that auxiliary about identification network
Supplementary information (NA-Info).This include how identification target jamming cell and with how to determine scheduling used in resource block, with
And how in entire potential parameter to select parameter to form the network-assist information, in addition, it is also proposed that how basis
The type (namely type of parameter) of network-assist information is implemented to transmit.This will all be described in detail in subsequent specification.
Fig. 2 shows the scene graph according to an embodiment of the invention for carrying out inter-cell interference cancellation.Such as Fig. 2 institutes
Show, serving BS administers the first user equipment, and interference base station administers second user equipment.In the scene of Fig. 2, the first user sets
Receive the interference of second user equipment and interference base station.Although here, it may be noted that schematically showing one in Fig. 2
Interference base station and a second user equipment, but in other embodiments of the invention, there may be multiple interference base stations and
Associated interfered cell.Each interference base station can also administer multiple second users for forming interference to the first user equipment and set
It is standby.And second user equipment is also not necessarily adjacent with the first location of user equipment.
Fig. 3 shows the flow chart of the method according to an embodiment of the invention for being used for transmission network-assist information.
As shown in figure 3, in step S301, the first user equipment (user equipment being disturbed) is reported to serving BS for first
The semi-static measurement result of the potential interfered cell of user equipment.The semi-static measurement result is for example small including potentially interfering
The Physical Cell Identifier (PCID) in area and the signal-to-noise ratio with the relevant reference signal of potential interference cell.It can by the step
So that the present position of serving BS clearly first user equipment, and the potentially possible interference of the above-mentioned interference of generation are small
Area.
Specifically, network is helped to understand the disturbance state in the angle of user equipment by this step.This is only a kind of general
Logical large-scale measurement and do not consider to dispatch.The above-mentioned reference signal referred to can be the public affairs of serving cell and neighboring community
Reference signal (CRS) or channel state information reference signals (CSI-RS) altogether.These are all to support in existing standard.
In implementation process, such as it can be come from using threshold value that is a kind of pre-defined or being indicated by network to trigger
The report of user equipment side.Such as it is triggered according to the difference of the Reference Signal Received Power between serving cell and neighboring community
This report.In one embodiment of the invention, on triggering, such as the first user equipment can report one kind to serving cell
Candidate of the cell list of PCID including all neighboring communities for meeting condition as the potential interference cell for NAICS
Cell.
In step s 302, the first user equipment sends the first instruction information to serving cell, which uses
In the receiver type for indicating the first user equipment.Here receiver type includes：Channel based on interference rejection combining is estimated
The receiver that the interference of the receiver of meter, the receiver that the interference of symbol level is eliminated and bit level is eliminated.Here, receiver
Type is associated with the parameter that the first user equipment needs.These parameters include semi-static parameter and dynamic parameter.And it is semi-static
Parameter includes the semi-static parameter of the semi-static parameter and Physical Resource Block level of cell hierarchy.The following table 1 shows network assistance
The parameter that may include in information.
The parameter that may include in 1 network-assist information of table
Receiver type associated with the parameter that the first user equipment needs is the different stage because for interference elimination,
The network-assist information of demand is also different.For example, for the receiver of the channel estimation based on interference rejection combining
(E-LMMSE-IRC receivers), user equipment only needs the parameter for estimating interfered cell channel, and it is small to principally fall into interference
The setting of the reference signal in area.For the receiver (Symbol-level IC receivers) that the interference of symbol level is eliminated, dynamic
Scheduling, such as resource allocation/modulation coding scheme/transmission mode are also needed.For the dry of more complicated bit level
The receiver (Bit-1evel IC receivers) for disturbing elimination, will be had in network-assist information more payload and
More energy expenditures will be had in user's processing.
Based on this, from the angle for implementing complexity, which can bring huge benefit.This is because being used by first
Family equipment voluntarily reports receiver type, and parameter appropriate can be advantageously selected from the parameter entirely listed to improve
The efficiency of NAICS and reduce signalling loads and transmission complexity.
An embodiment of the first instruction information is shown below：
The type that receiver is indicated by using short bit map, to indicate required network-assist information
(namely required parameter).
| The receiver of channel estimation based on interference rejection combining | 00 |
| The receiver that the interference of symbol level is eliminated | 01 |
| The receiver that the interference of bit level is eliminated | 10 |
| It is empty | I1 |
The correspondence of table 2 receiver and bit map
As shown in table 2, which wishes to realize that interference cancellation has mostly complexity corresponding to user equipment.As described above,
According to the discussion in RAN4, different interference cancels grade and needs different network-assist informations.E-MMSE-IRC is connect
Receipts machine only needs the information of the channel for estimating interfered cell.For Symbo1-levelIC receivers, for example, it is additional
Ground needs symbol level scheduling information, such as modulation order.For Bit-levelIC receivers, such as need additional modulation
Coding mode.The interference of different ranks is eliminated, corresponding bit map can be embedded in the first instruction letter according to table 2
It is sent in breath.At this it may be noted that the correspondence in table 1 is merely exemplary, and not restrictive.
The preparation of network-assist information is simplified from the angle of network by the step.
Alternatively, the first user equipment can also indicate its required parameter using other modes to serving BS.
For example, the first user equipment can indicate its required all parameter using long bit map.Here, here can
A kind of bit diagram corresponding to all possible parameter is pre-defined, and some is represented whether by 0 bit and 1 bit
Parameter.
Additionally, the first user equipment can also indicate it is to need high-level signaling, or dynamic is believed using 1 bit signalling
It enables.For semi-static parameter, user equipment directly can receive them from serving cell, such as pass through such as RRC signaling
High-level signaling.For dynamic parameter, then the first user equipment is needed to monitor dynamic signaling from interfered cell.
Fig. 3 is returned to, then in step S303, serving BS sends the first instruction information to interference base station.Here dry
It can be the potential interference base station of those of the first user equipment to report being disturbed in step S301 to disturb base station.First instruction
Information includes the receiver type of the first user equipment as described above.To which the first instruction information has indicated the first user
Equipment carries out the ability of inter-cell interference cancellation.
Preferably, which can be implemented by X2 signalings.
Following table 3 shows the example format of X2 signalings：
The X2 signaling formats of receiver type of the table 3 based on user equipment
In addition, respectively illustrating other two kinds feasible X2 signaling formats in table 4 and table 5, correspond respectively in step
" long bit map " and " instruction high-level signaling or dynamic signaling " both embodiments referred in rapid 302.
X2 signaling format of the table 4 based on long bit map
Table 5 indicates the X2 signaling formats of high-level signaling or dynamic signaling
In step s 304, interference base station sends the first signaling to serving BS comprising the semi-static ginseng of cell hierarchy
Number, and interference base station sends the second signaling to the serving BS comprising the semi-static parameter of Physical Resource Block level.
Specifically, which actually carries cell-specific network-assist information comprising the half of cell hierarchy
Static parameter.First signaling is realized between serving cell and interfered cell in the form of X2 signalings.In this cell-specific
All parameters in network-assist information are presented in a manner of cell-specific.It means that an interfered cell distribution one
Group parameter.
In table 1, actually in addition to control format indicates (CFI), all parameters for indicating " cell " can be attached to this
Type.In addition, according to before for the discussion of Rel-11FeICIC, the configuration of multicast/multicast single-frequency network network (MBSFN) and public affairs
The quantity (Number of CRS APs) of reference signal antenna port is coordinated between serving cell and interfered cell altogether
It crosses, and is transferred to the user equipment that can carry out NAICS by RRC signaling.Therefore, remaining herein to need to be coordinated
Semi-static parameter with the cell hierarchy of transmission is：Physical Cell Identifier (PCID), power ratio instruction a (PA), power ratio indicate b
(PB), system bandwidth, zero power channel status information reference signal resource (ZP CSI-RSResource), non-zero power channel
State information reference signals resource (NZP CSI-RS Resource), circulating prefix-length (CP Length) and subframe instruction
(Subframe ＆ Slot number).
Here, a kind of new X2 signalings will be designed to include above-mentioned all parameters namely the first signaling.Table 6 shows this
The format of kind X2 signalings：
Table 6 is used for transmission the format of the X2 signalings of the semi-static parameter of cell hierarchy
Herein, it should be understood that not necessarily all adjacent cells are required for coordinating above-mentioned X2 letters with serving BS
Enable, and may only be those to be considered as potential interfered cell will coordinate above-mentioned X2 signalings with serving BS.
Then, in step S305, serving BS sends first network auxiliary information to the first user equipment comprising small
The semi-static parameter of region layer grade, and send the second network assistance letter, breath comprising Physical Resource Block layer to the first user equipment
The semi-static parameter of grade.
Wherein, which is realized by a kind of new RRC signaling, as shown below.
The interference base station come back to now in the step S304 in Fig. 3 sends the second signaling to the serving BS,
Include the semi-static parameter of Physical Resource Block level.
Specifically, which actually carries Physical Resource Block dedicated network auxiliary information comprising physics provides
The semi-static parameter of source block level.Second signaling is also real in the form of X2 signalings between serving cell and interfered cell
It is existing.All parameters in this Physical Resource Block dedicated network auxiliary information are all in such a way that Physical Resource Block is dedicated
It is existing.It means that for a Physical Resource Block, relevant semi-static parameter will be configured with.Here, interfered cell can incite somebody to action
All semi-static parameters on the Physical Resource Block of downlink bandwidth are transferred to serving BS.Alternatively, interfered cell also may be used
The semi-static parameter on all Physical Resource Block in resource set is only transferred to serving BS (this will be explained below).
In implementation process, because the information on each Physical Resource Block will be different.The X2 signalings referred here to
The payload for the RRC signaling (described below) coordinated and subsequently issue the first user equipment by serving BS will be than described previously
Cell-specific network-assist information bigger.In order to further decrease payload size, the physics that the present invention is listed below provides
It makes a choice in the semi-static parameter of source block level.There is following parameter in table 1：
Transmission mode (TM)：Which kind of transport-type display Physical Resource Block belongs to, from TM1 to TM9；
Scrambling code identification (nSCID)：Show that the value is " 0 " or " 1 "；
Demodulated reference signal antenna port (DM-RS AP)：It can be in user equipment side by blind decoding, because can also
It is unwanted；
nRNTI：Because for method proposed by the present invention, the decoding of network-assist information is not based on each interference user
The blind decoding of equipment, therefore the information is unwanted.
Based on this, only TM and nSCID parameters are required between interfered cell and serving cell through X2 signaling harmonizings.
Because the two parameters are Physical Resource Block levels, the X2 signalings based on Physical Resource Block rank are needed.Table 7 shows this
The format of X2 signalings：
Table 7 is used for transmission the format of the X2 signalings of the semi-static parameter of Physical Resource Block level
Here, the X2 signalings can also be used in conjunction with the concept of resource set mentioned below.In order to save effective load
Lotus and for including resource and user equipment in network-assist information from the angle recognition of interfered cell, resource set can be with
Which for identifying in all Physical Resource Block can partly be included in network-assist information.Here, this will imply that,
Physical Resource Block in above-mentioned X2 signalings is not for all Physical Resource Block (PRB1, PRB2 ... PRB through downlink bandwidth
N), and only for the Physical Resource Block (PRB1, PRB2 ... PRB N) covered by resource set.
Then, the serving BS returned in step S305 sends the second network-assist information, packet to the first user equipment
Include the semi-static parameter of Physical Resource Block level.
Specifically, which is also to be realized by a kind of new RRC signaling, as shown below.
Then, in step S306, serving BS is negotiated to determine the structure of resource set, wherein resource set packet with interference base station
Multiple Physical Resource Block are included, and serving BS is used using at least one of resource set Physical Resource Block described first
Family equipment is scheduled.
As previously mentioned, the resource set in the present invention refers to being reported to serving BS with NAICS abilities for those and wanting
The user equipment asked, serving BS will combine interference base station or automatically determine one piece of resource set, and serving BS can only make
The user equipment being disturbed is scheduled with the Physical Resource Block in the resource set.I.e. for all reports in step S302
The user equipment of announcement all uses and coordinates general resource set.
And after determining resource set, in one embodiment of the invention, the transmitting physical in step S304 will be combined
The situation of the semi-static parameter of resource block level.Thus the Physical Resource Block being related in step s 304 will be only located at resource set
On, this further saves signaling overheads.
The principle of resource set and method of determination will be hereafter described in detail.
Since current normal dispatch is to realize frequency selectivity gain based on dynamic dispatching principle.If deposited in backhaul
In some delay, then user equipment (such as first that serving cell can not possibly be allowed to notify interfered cell that can carry out NAICS immediately
User equipment those of is reported in user equipment and those steps S301) scheduled Physical Resource Block, and make dry
It disturbs cell and generates network-assist information.So having reason to carry out the user of NAICS to dispatch using scheduled resource set and set
It is standby, and can negotiate to determine the resource set together with interfered cell in advance.
Angle from interfered cell, the user equipment for the neighbor cell (i.e. serving cell) being scheduled in this resource set
Scheduling information can be used as generate network-assist information reference.Therefore from the angle of interfered cell, which can make
The generation of network-assist information, which more collects neutralization, has purpose, to improve efficiency.
Fig. 4 shows the flow chart according to an embodiment of the invention for negotiating to determine the structure of resource set.
As shown in figure 4, in step S401, serving BS automatically determines the structure of resource set, and to interference base station
The second instruction information is sent, the second instruction information is used to indicate the structure of resource set.
In one embodiment of the invention, which is the resource set of Physical Resource Block grade.
Namely serving BS is by user equipment (such as the step to that can carry out NAICS on certain Physical Resource Block
User equipment, such as the first user equipment those of are reported in S301) it is scheduled, and by all these possible resource blocks
(i.e. resource block collection) informs interference base station.
Here, the structure of resource set can in a distributed fashion or centralization mode or full bandwidth realize.
For distributed mode, some Physical Resource Block at equidistance will be preserved for that NAICS can be carried out
User equipment.Here, need two instructions, one be equal distance and the other is offset.
For the mode of centralization, some continuous Physical Resource Block set the user for being preserved for carry out NAICS
It is standby.Need two instructions herein, one be the initial position of Physical Resource Block and the other is end position.Because under 110 are
The maximum value of row Physical Resource Block, so bitmap bit is log2110=7.
Table 8 shows the schematic diagram of the X2 signalings of serving BS notice interference base station resource structure set：
Table 8 notifies the format of the X2 signalings of the structure of resource set for serving BS to interference base station
Fig. 5 shows the flow chart of the structure for negotiating to determine resource set according to another embodiment of the invention.
In step S501, interference base station sends third to serving BS and indicates that information, third instruction information are used to indicate
At least one user equipment that the structure of resource set, wherein interference base station administer it using the resource set is scheduled.It is logical
The step is crossed, interference base station informs serving BS, and it will adjust the user equipment that it is administered on which Physical Resource Block
Degree.As a result, serving BS also will these physical resources it is in the block certain some the first user equipment is scheduled so that
First user equipment carries out NAICS.
In one embodiment of the invention, the mode of X2 signalings as used herein can be identical in table 7.
Then, in step S502, serving BS determines whether the structure of the resource set is reasonable, such as according to pre-defined rule
Fruit is reasonable, and confirmation message is sent to interference base station.If serving BS determines unreasonable, serving BS can for example suggest doing
Disturb the size that base station reduces/expand resource set.The pre-defined rule is for example depending on the quantity for the user equipment that can realize NACIS
And present load.The message of the confirmation can also believe the present to realize based on X2, and the following table 9 gives the embodiment party of this X2 signalings
Formula.
Table 9 confirms the format of the structure X2 signalings of resource set for serving BS to interference base station
Alternatively, in another embodiment of the present invention, which is sub-frame level.For sub-frame level, service is small
Only scheduling can carry out the user equipment of NAICS in several specific subframes in area.It then, will be only from the angle of interference base station
The dynamic network-assist information in several specific sub-frames is transmitted, rather than all.Similarly, serving BS is by interference
Base station sends X2 signalings to realize aforesaid operations.Corresponding new X2 signalings can be the bit map of the length with 10ms,
It is as shown in the following table 10：
The format of the X2 signalings of 10 sub-frame level of table
Similar with the embodiment of the resource set of Physical Resource Block grade, the process of above-mentioned determining resource set can also be by interference base
It stands initiation, this will not be detailed here.
Alternatively, in another embodiment of the present invention, which is mixed class.For this mode, one
Some specific Physical Resource Block in some specific subframes will be preserved for the use that can carry out NAICS in the serving cells
Family equipment.Then, from the angle of interference base station, the dynamic network-assist information in these specific resources is only transmitted.
Similarly, serving BS realizes aforesaid operations by sending X2 signalings to interference base station.Corresponding new X2 signalings such as table 11
It is shown：
The format of the X2 signalings of 11 mixed class of table
Similarly, similar with the embodiment of the resource set of Physical Resource Block grade, the process of above-mentioned determining resource set can also
It is initiated by interference base station, this will not be detailed here.
In step S307, interference base station determines dynamic parameter according to the receiver type of the first user equipment.These are dynamic
At least one user equipment of the state parameter interfered base station for being administered to it in resource set is scheduled.And interference base station
Third network-assist information is sent to the first user equipment, wherein third network-assist information includes dynamic parameter.
Specifically, interference base station only can (i.e. this be dry by corresponding scheduling information on the Physical Resource Block being overlapped with resource set
Disturb the scheduling information of the base station at least one user equipment administrative to its) as candidate dynamic parameter.Here, interference base station
The receiver type for considering the first user equipment is selected into dynamic parameter, rather than all by above-mentioned all candidate dynamic parameters
It is sent to the first user equipment.Thereby reduce signaling overheads.
In order to transmit above-mentioned dynamic parameter, a kind of new Downlink Control Information (DCI) format will be introduced to carry third net
Network auxiliary information.Preferably, this new Downlink Control Information can also transmit in the common search part of interfered cell, with
Additional fixed resource is avoided to be lost.As shown in table 1, in all dynamic parameters, control format indicates that (CFI) is cell-specific
, and others are that Physical Resource Block is dedicated.In addition, as previously mentioned, for other different (the i.e. receivers of interference cancellation stage
It is different), required dynamic parameter is also different.Therefore, DCI structures according to the present invention are divided into two parts, first
Point just for control format instruction and user equipment receiver type, i.e. network-assist information packet header, and second part be with
The associated dynamic parameter of each Physical Resource Block and cyclic redundancy check code (CRC).
Fig. 6 shows the form schematic diagram of the DCI according to an embodiment of the invention for being used for transmission dynamic parameter.
As shown in fig. 6, CFI indicates 2 bits, the physical down link sharing channel (PDSCH) of interfered cell is indicated
Originate OFDM symbol.
Interference eliminates type (IC-Type) and indicates 2 bits, and instruction receiver is that the channel based on interference rejection combining is estimated
The receiver that the interference for the receiver or bit level that the receiver of meter or the interference of symbol level are eliminated is eliminated.
Physical Resource Block indicates, is the bit map for the length that length is resource set, to indicate which has in the DCI
The dynamic parameter of Physical Resource Block.
1 information ... Physical Resource Block N information of Physical Resource Block indicates dynamic parameter corresponding with each Physical Resource Block.
This, physical resource 1 ... physical resource N is each Physical Resource Block in resource set.For example, if interference base station is in physical resource
The user equipment that it is administered is scheduled on block 1, then corresponding scheduling information will be considered as candidate dynamic parameter, and by root
(described below) in 1 information of Physical Resource Block is selected according to conditions such as receiver types.
Cyclic redundancy check code (CRC)：It carrys out scrambler using NAIC radio network temporary identifiers (NAIC-RNTI) and blocks
CRC, for decoding.
Specific network-assist information (the i.e. object of each Physical Resource Block for different receiver types is discussed below
Manage 1 information ... Physical Resource Block N information of resource block).For interference base station administration interference user equipment based on CRS modes and
Based on the demodulation mode of DM-RS modes, the parameter needed is different.Hereafter two kinds of demodulation modes will also be distinguished.
In the case where the receiver of the first user equipment is the receiver of the channel estimation based on interference rejection combining, figure
7 show a kind of example format schematic diagram of physical resource block message according to an embodiment of the invention.As Fig. 7 can
See, when at least one user equipment that interference base station is administered on corresponding Physical Resource Block is demodulated based on CRS modes,
The network-assist information (i.e. physical resource block message) of each Physical Resource Block only needs pre-coding matrix instruction parameter and order to refer to
Show parameter.It can be 6 bit of pre-coding matrix instruction parameter setting, and be 2 bit of order instruction parameter setting.
And for the demodulation based on DM-RS, institute's information in need is transmitted by RRC control signaling, so being not required to
Want dynamic information.
In the case of the receiver that the interference that the receiver of the first user equipment is symbol level is eliminated, Fig. 8 is shown
A kind of example format schematic diagram of physical resource block message according to another embodiment of the invention.
As shown in Figure 8, when interference base station is based at least one user equipment of upper administration in corresponding Physical Resource Block
When CRS modes are demodulated, it is also necessary to add modulation system parameter relative to the embodiment in Fig. 7.Because again using 64QAM
It generates interference data to be unsuitable, QPSK and 16QAM will be only included here, therefore this modulation methods is indicated using 1 bit
Formula parameter is sufficient.And the demodulation mode instruction for also needing to 1 bit of setting in the case, the side CRS is based on for distinguishing
Formula and be based on DM-RS modes.
When above-mentioned at least one user equipment is demodulated based on DM-RS modes, as shown in Figure 8, Physical Resource Block letter
Breath only includes that the demodulation mode instruction of 1 bit and the modulation system parameter of 1 bit are sufficient.
In the case of the receiver that the interference that the receiver of the first user equipment is bit level is eliminated, Fig. 9 is shown
A kind of example format schematic diagram of physical resource block message according to still another embodiment of the invention.
The interference of bit level is eliminated, needs to obtain continuous coding increasing because NACIS user equipmenies can be carried out
Benefit.The user equipment needs to know which interference user equipment to be belonged to (namely interference base station administration is extremely for which Physical Resource Block
A few user equipment).Thus need in physical resource block message be arranged Physical Resource Block belong to instruction, be used to indicate to
The correspondence of few a Physical Resource Block and at least one user equipment.If N number of involved in the physical resource block message
User equipment is interfered, then log2N bit is needed to be indicated.
It is different from the first two embodiment, when at least one user that interference base station is administered on corresponding Physical Resource Block sets
It is standby when being demodulated based on CRS modes, setting modulation coding scheme parameter is needed in this is based on the embodiment of bit level.
Because regenerating interference data using 64QAM and low code check to be unsuitable, 4 bits will be only used herein to indicate and adjust
The relevant QPSK and 16QAM of coding mode processed (modulation system serial number is from 0 to 15).
As shown in figure 9, when above-mentioned at least one user equipment is demodulated based on DM-RS modes, need relative to Fig. 8
In embodiment add Physical Resource Block ownership instruction again, and needed in based on DM-RS modes with based on CRS modes are similar
Modulation system parameter is set, is herein 4 bits.
In this embodiment it is assumed that 8 interference user equipmenies involved in the physical resource block message.Therefore, physics provides
Source block ownership is designated as 3 bits.Additionally, it interferes the actual value of user equipment that can be configured by network, and is sent to
In all user equipmenies that can carry out NAICS.
Turning now to Fig. 3, in step S308, the first user equipment (user equipment that can also carry out NAICS) base
Inter-cell interference cancellation is carried out in first network auxiliary information, the second network-assist information and third network-assist information.
It will be understood by those of skill in the art that there is no tandem relationships for certain steps in Fig. 3, only it is example
Property indicate.The sequence of certain steps can be overturned or is carried out at the same time.Such as the sequence of step S305 and S306 can on the contrary,
So that the implementation of step S305 is by the structure (being described in detail above) according to identified resource set in step S306.
It should be noted that above-described embodiment is only exemplary rather than limitation of the present invention.It is any without departing substantially from this hair
The technical solution of bright spirit should all be fallen under the scope of the present invention, this includes using in different embodiments to occur not
Same technical characteristic, method can be combined, to obtain advantageous effect.
Claims (13)
1. a kind of method being used for transmission network-assist information in serving BS, the network-assist information are set by the first user
It is ready for use on carry out inter-cell interference cancellation, wherein first user equipment is administered by serving BS, and first user
Equipment is by least one interference base station potential interference, and described method includes following steps:
The first instruction information is sent to the interference base station, the first instruction information is used to indicate first user equipment
Receiver type；
The first signaling is received from the interference base station comprising the semi-static parameter of cell hierarchy, and from the interference base station
Receive the second signaling comprising the semi-static parameter of Physical Resource Block level；
First network auxiliary information is sent to first user equipment comprising the semi-static parameter of the cell hierarchy, and
And send the second network-assist information to first user equipment comprising the semi-static ginseng of the Physical Resource Block level
Number；And
Negotiate the structure of determining resource set with the interference base station, wherein the resource set includes multiple Physical Resource Block, and
The serving BS is scheduled first user equipment using at least one of resource set Physical Resource Block.
2. according to the method described in claim 1, it is characterized in that, sending the first instruction information to the interference base station in step
Before, the method includes：
The first instruction information is received from first user equipment.
3. according to the method described in claim 1, it is characterized in that,
The semi-static parameter of the cell hierarchy includes Physical Cell Identifier, power ratio instruction a, power ratio instruction b, system band
Width, zero power channel status information reference signal resource, non-zero power channel state information reference signals resource, cyclic prefix are long
Degree and subframe instruction；And/or
The semi-static parameter of the Physical Resource Block level includes transmission mode, scrambling code identification.
4. according to the method described in claim 1, it is characterized in that, step negotiates to determine the knot of resource set with the interference base station
Structure includes：
It determines the structure of the resource set, and the second instruction information, the second instruction information is sent to the interference base station
It is used to indicate the structure of the resource set；Or
Third, which is received, from the interference base station indicates that information, the third instruction information are used to indicate the structure of the resource set,
At least one user equipment that the wherein described interference base station administers it using the resource set is scheduled；And
According to pre-defined rule, determine whether the structure of the resource set is reasonable, if rationally, sending and confirming to the interference base station
Message.
5. according to the method described in claim 1, it is characterized in that, the receiver type includes：Based on interference rejection combining
The receiver of channel estimation, symbol level the receiver eliminated of the interference of receiver and bit level eliminated of interference.
6. a kind of method being used for transmission network-assist information in interference base station, the network-assist information are set by the first user
It is ready for use on carry out inter-cell interference cancellation, wherein first user equipment is administered by serving BS, and first user
Equipment is by the interference base station potential interference, and described method includes following steps:
The first instruction information is received from the serving BS, the first instruction information is used to indicate first user equipment
Receiver type；
The first signaling is sent to the serving BS comprising the semi-static parameter of cell hierarchy, and to the serving BS
Send the second signaling comprising the semi-static parameter of Physical Resource Block level；
Negotiate the structure of determining resource set with the serving BS, wherein the resource set includes multiple Physical Resource Block, and
The serving BS is scheduled first user equipment using at least one of resource set Physical Resource Block；With
And
According to the receiver type of first user equipment, dynamic parameter is determined, and third network-assist information is sent
To first user equipment, wherein the third network-assist information includes the dynamic parameter, and the wherein described dynamic
At least one user equipment of the parameter by the interference base station for being administered to it in the resource set is scheduled.
7. according to the method described in claim 6, it is characterized in that, step negotiates to determine the knot of resource set with the serving BS
Structure includes：
The second instruction information is received from the serving BS, the second instruction information is used to indicate the structure of the resource set；
Or
Third, which is sent, to the serving BS indicates that information, the third instruction information are used to indicate the structure of the resource set,
At least one user equipment that the wherein described interference base station administers it using the resource set is scheduled；And
Confirmation message is received from the serving BS.
8. according to the method described in claim 6, it is characterized in that, the receiver type includes：Based on interference rejection combining
The receiver of channel estimation, symbol level the receiver eliminated of the interference of receiver and bit level eliminated of interference.
9. according to the method described in claim 8, it is characterized in that,
In the case where the receiver is the receiver of the channel estimation based on interference rejection combining,
The dynamic parameter includes joining with the one-to-one pre-coding matrix instruction of each Physical Resource Block in the resource set
Number and order instruction parameter；
In the case of the receiver that the interference that the receiver is the symbol level is eliminated,
When at least one user equipment is demodulated based on cell reference signals CRS modes, the dynamic parameter includes
Refer to the one-to-one demodulation mode instruction of each Physical Resource Block in the resource set, pre-coding matrix instruction parameter, order
Show parameter and modulation system parameter,
When at least one user equipment is demodulated based on demodulated reference signal DM-RS modes, the dynamic parameter packet
Include with the one-to-one demodulation mode instruction of each Physical Resource Block in the resource set and modulation system parameter,
In the case of the receiver that the interference that the receiver is the bit level is eliminated,
When at least one user equipment is demodulated based on CRS modes, the dynamic parameter includes and the resource set
In the instruction of each Physical Resource Block one-to-one Physical Resource Block ownership, demodulation mode instruction, pre-coding matrix instruction ginseng
Number, order instruction parameter and modulation coding scheme parameter；
When at least one user equipment is demodulated based on DM-RS modes, the dynamic parameter includes and the resource
The one-to-one Physical Resource Block ownership instruction of each Physical Resource Block, demodulation mode instruction and the modulation coding scheme ginseng concentrated
Number；
Wherein, for distinguishing based on CRS modes and being based on DM-RS modes, the Physical Resource Block is returned for the demodulation mode instruction
Belong to the correspondence that instruction is used to indicate at least one Physical Resource Block and at least one user equipment.
10. according to the method described in claim 6, it is characterized in that,
The semi-static parameter of the cell hierarchy includes Physical Cell Identifier, power ratio instruction a, power ratio instruction b, system band
Width, zero power channel status information reference signal resource, non-zero power channel state information reference signals resource, cyclic prefix are long
Degree and subframe instruction；And/or
The semi-static parameter of the Physical Resource Block level includes transmission mode, scrambling code identification.
11. a kind of method being used for transmission network-assist information in the first user equipment, the network-assist information are described
First user equipment is for carrying out inter-cell interference cancellation, wherein first user equipment is administered by serving BS, and institute
The first user equipment is stated by least one interference base station potential interference, described method includes following steps:
The first instruction information is sent to the serving BS, the first instruction information is used to indicate first user equipment
Receiver type；
First network auxiliary information is received from the serving BS comprising the semi-static parameter of cell hierarchy, and from described
Serving BS receives the second network-assist information comprising the semi-static parameter of Physical Resource Block level；And
Third network-assist information is received from least one interference base station comprising dynamic parameter.
12. according to the method for claim 11, which is characterized in that
The semi-static parameter of the cell hierarchy includes Physical Cell Identifier, power ratio instruction a, power ratio instruction b, system band
Width, zero power channel status information reference signal resource, non-zero power channel state information reference signals resource, cyclic prefix are long
Degree and subframe instruction；And/or
The semi-static parameter of the Physical Resource Block level includes transmission mode, scrambling code identification.
13. according to the method for claim 11, which is characterized in that the method further includes following steps：Based on described
One network-assist information, second network-assist information and the third network-assist information carry out inter-cell interference cancellation.
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| CN107017961B (en) * | 2016-01-28 | 2019-09-17 | 电信科学技术研究院 | A kind of signal detecting method and device |
| CN108738042A (en) * | 2017-04-24 | 2018-11-02 | 华为技术有限公司 | A kind of interference elimination method, user equipment and the network equipment |
| CN112954718B (en) * | 2017-05-12 | 2022-12-27 | 展讯通信（上海）有限公司 | NAICS capability reporting and NAICS parameter configuration method, device, user equipment and base station |
| BR112020006512A2 (en) * | 2017-10-02 | 2020-09-29 | Telefonaktiebolaget Lm Ericsson (Publ) | method for user equipment, user equipment, carrier, method performed by a base station, and, base station for configuring user equipment |
| US11229033B2 (en) * | 2019-06-02 | 2022-01-18 | Qualcomm Incorporated | Over-the-air interference coordination |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186155A (en) * | 2011-05-03 | 2011-09-14 | 中兴通讯股份有限公司 | Interactive method and system for intercell information |
| CN102594527A (en) * | 2011-01-10 | 2012-07-18 | 夏普株式会社 | Descending multi-antenna multi-carrier multi-cell channel state information feedback method |
| WO2012130148A1 (en) * | 2011-03-29 | 2012-10-04 | 电信科学技术研究院 | Pilot sequence processing method and equipment |
| CN103327599A (en) * | 2012-03-22 | 2013-09-25 | 华为技术有限公司 | Method for reducing channel disturbance and base station |
-
2014
- 2014-01-29 CN CN201410043794.XA patent/CN104811916B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594527A (en) * | 2011-01-10 | 2012-07-18 | 夏普株式会社 | Descending multi-antenna multi-carrier multi-cell channel state information feedback method |
| WO2012130148A1 (en) * | 2011-03-29 | 2012-10-04 | 电信科学技术研究院 | Pilot sequence processing method and equipment |
| CN102186155A (en) * | 2011-05-03 | 2011-09-14 | 中兴通讯股份有限公司 | Interactive method and system for intercell information |
| CN103327599A (en) * | 2012-03-22 | 2013-09-25 | 华为技术有限公司 | Method for reducing channel disturbance and base station |
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