CN106465201A - Method and apparatus for triggering naics in wireless network - Google Patents
Method and apparatus for triggering naics in wireless network Download PDFInfo
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- CN106465201A CN106465201A CN201480079894.6A CN201480079894A CN106465201A CN 106465201 A CN106465201 A CN 106465201A CN 201480079894 A CN201480079894 A CN 201480079894A CN 106465201 A CN106465201 A CN 106465201A
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- naics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
Abstract
The present invention is to provide a suitable scheme for triggering to activate or deactivate NAICS so as to overcome the defect in the prior art. According to a further aspect of the present invention, a method in an UE of a wireless network for triggering NAICS is provided, wherein said method comprising: - receiving a first set of NAICS information from the base station of serving cell of the UE, which comprises the cell ID of the neighboring cells in a Interfering NAICS Cell list ( INCL); - determining the NAICS cell(s) among the neighboring cells based on the first set of NAICS information; - sending the cell ID of NAICS cell(s) to the base station, for triggering to activate NAICS. In another embodiment, the method in UE further comprises: - detecting the information of degradation of the UE operating in NAICS with a NAICS cell; and - deactivating NAICS with the NAICS cell upon the determination of the detected information of degradation of UE meeting the predefined criterion. With the present invention, the following advantages are achieved: 1) the flexibility of the NAICS interfering cell's schedule is enhance due to the suitable scheme for triggering to activate or deactivate NAICS; 2) the system performance of the wireless network is not impacted too much while involving NAICS with the NAICS interfering cell, by the suitable scheme for triggering to activate or deactivate NAICS.
Description
Technical field
The present invention relates to the field of wireless network, for triggering the NAICS in wireless network, (network is auxiliary particularly to a kind of
Help Interference Cancellation and suppression) technology.
Background technology
Network assistance Interference Cancellation and the 12nd edition WI that suppression (NAICS) is currently in 3GPP.The purpose of this WI is to provide
The information relevant with interference source, so that UE can use the information to offset or suppress interference, thus improving downlink
Throughput performance.
NAICS information will comprise to allow the parameter at least to symbol level for the UE demodulation of downlink interference signal.These ginsengs
Some in the middle of number are dynamic (such as modulation, PMI, orders), and due to postponing, the way being signaled by X2 interface
More difficult and unrealistic.Therefore propose in 3 gpp by the such multidate information of UE blind Detecting, that is, not yet in physics
Those parameters signaling in layer channel and signal.But some parameters have bigger numerical scope, for example, there are 10 kinds
Transfer mode and 504 virtual subdistrict ID, hence in so that all possible combination of UE blind Detecting is high complexity.
In order to help UE to carry out blind Detecting, decide through consultation in 3 gpp and limited with regard to the subset of some in the middle of these parameters.
But any restriction with regard to dynamic parameter all will reduce the motility of the scheduler of interfered cell, consequently, it is possible to impact systematicness
Energy.
Content of the invention
The present invention will provide a kind of suitable scheme for triggering activation or deactivation NAICS, to overcome in prior art
Defect.
According to an aspect of the present invention, provide the device in a kind of UE of the wireless network for triggering NAICS, wherein
Described device includes：
Base station for the Serving cell from UE receives the device of a NAICS information aggregate, and it is in interference NAICS cell
List (INCL) includes cell ID of neighbor cell；
For determining the dress of (one or more) the NAICS cell in the middle of neighbor cell based on a NAICS information aggregate
Put；
Cell ID for (one or more) NAICS cell determined by sending to base station is so that the dress of triggering NAICS
Put.
In another embodiment, described device also includes：
For detection operation with the NAICS of NAICS cell in UE quality reduce information device；And
For disabling and NAICS cell when meeting predefined standard in the information determining that the quality of detected UE reduces
NAICS device.
According to another aspect of the present invention, the device in a kind of base station of the wireless network for triggering NAICS is provided,
Wherein said device includes：
For sending the device of a NAICS information aggregate to (one or more) UE, it is in interference NAICS cell list
(INCL) include cell ID of neighbor cell；
For receiving the device of cell ID of (one or more) NAICS cell from the UE of the first number；
For triggering (one or more) NAICS cell activation NAICS in the case of being higher than the 5th threshold value in the first number
The device of operation.
In another embodiment, described device also includes：
For little with NAICS with regard to disabling with the UE reception of second number of the NAICS of NAICS cell from having disabled
The device of the notice of the NAICS in area；
Stop for triggering NAICS cell in the case of being less than the 6th threshold value in operation in the number of the remaining UE in NAICS
Device with NAICS operation.
According to another aspect of the present invention, a kind of method in UE of the wireless network for triggering NAICS is provided, its
Described in method include：
- receiving a NAICS information aggregate from the base station of the Serving cell of UE, it is in INCL (interference NAICS cell row
Table) include cell ID of neighbor cell；
- (one or more) NAICS cell in the middle of neighbor cell is determined based on a NAICS information aggregate；
- to base station send determined by (one or more) NAICS cell cell ID in case triggering NAICS.
In another embodiment, the method in described UI also includes：
- detection operation with the NAICS of NAICS cell in UE quality reduce information；And
- disable and NAICS cell when the information determining that the quality of detected UE reduces meets predefined standard
NAICS.
According to another aspect of the present invention, provide in a kind of base station of the wireless network for triggering activation NAICS
Method, wherein said method includes：
- sending a NAICS information aggregate to (one or more) UE, it is in interference NAICS cell list (INCL)
Cell ID including neighbor cell；
Wherein, methods described also includes：
- cell ID of (one or more) NAICS cell is received from the UE of the first number；
- in the case that the first number is higher than the 5th threshold value, triggering (one or more) NAICS cell activation NAICS grasps
Make.
According to another aspect of the present invention, a kind of UE of the wireless network for triggering activation NAICS, wherein institute are provided
State UE to include as above recited device.
According to another aspect of the present invention, a kind of base station of the wireless network for triggering NAICS is provided, wherein said
Base station includes described device.
By present invention achieves advantages below：
- due to the suitable scheme in order to trigger activation or disable NAICS, the dispatching flexibility of NAICS interfered cell is able to
Strengthen；
- by the suitable scheme in order to trigger activation or disable NAICS, it is being related to the NAICS's of NAICS interfered cell
Meanwhile, the systematic function of wireless network is not affected substantially.
Brief description
The elaborating with regard to non-limiting example being made reference to by reading, other features of the present invention,
Objects and advantages will become more apparent.
Fig. 1 shows the example scenario of wireless network；
The flow chart that Fig. 2 shows the method for triggering activation NAICS according to an embodiment of the invention；
The flow chart that Fig. 3 shows the method disabling NAICS for triggering according to a preferred embodiment of the present invention；
Fig. 4 shows the schematic diagram of the system for triggering activation NAICS according to an embodiment of the invention；
Fig. 5 shows the schematic diagram of the system disabling NAICS for triggering according to an embodiment of the invention.
Same or similar reference in accompanying drawing represents same or similar ingredient.
Specific embodiment
Provide further describing with regard to the present invention below with reference to accompanying drawings.
Technical term defines：
For the sake of clarity, we are defined as below some terms in context first：
- " wireless network " means for carrying out voice and/or the communication network of data transmission, its bag by wireless signal
Include multiple base stations, the service of each base station wherein has one or more cells of one or more subscriber's installations.Wireless network
Include, without being limited to the wireless network based on GSM, CDMA, 3GPP (third generation partner program) agreement.
- " base station " means the radio station with bi-directional transceiver, and it can be serviced with it by radio signal
Cell in UE carry out up-link and downlink communication, and also can directly or indirectly and other base station communications.No
Gauze network includes, without being limited to based on the section in the base station in the wireless network of gsm protocol, the wireless network based on CDMA agreement
E-Node B (evolved node B) in point B and the wireless network based on 3GPP agreement.
- " subscriber's installation " means the communication equipment being used by user, on it can be carried out with the base station in wireless network
Line link and downlink communication.The mobile electricity of the telco module that subscriber's installation includes, without being limited to have for wireless network
Words, laptop computer or tablet PC；
- " Serving cell " means the cell that UE is connected to；
- " interfered cell " means that UE's is located proximate to its perimeter region and the cell being interfered.
Fig. 1 shows the example scenario of wireless network, and it includes multiple base stations, and each base station services a cell.
And there are multiple subscriber's installations in each cell.For the sake of clarity, illustrate only a subscriber's installation UE1, its by
The base station BS 1 being referred to as " serving BS " services.The circumference that the cell being located proximate to BS2 of UE1 is covered, and in descending chain
It is subject to the interference from the BS2 being referred to as " interference base station " during Lu Zhongyu BS1 communication.Wherein, described wireless network can be base
Wireless network in 3GPP.It is preferably LTE network, and base station is the e-Node B of LTE network.
The flow chart that Fig. 2 shows the method for triggering activation NAICS according to an embodiment of the invention.Below
To be described in greater detail with reference to Fig. 2 and with reference to Fig. 1：
As shown in figure 1, the circumference of the cell being located proximate to interference base station BS2 of UE1 in the cell of serving BS BS1,
Therefore disturbed by from BS2 during the downlink and uplink communication with BS1.
As shown in Figure 2, at step S201, BS1 sends to (one or more) UE in the Serving cell of BS1
First NAICS information aggregate, the wherein the first NAICS information aggregate includes adjacent little in interference NAICS cell list (INCL)
Cell ID in area.
During the configuration of wireless network, INCL can be predefined for each cell (cell 1 of such as BS1)
And it is static/semi-static.Preferably, network can correspond to the cell in the INCL of UE by RRC config update.This
One renewal can be to be not located at new cell (as its existing mobility code in original I NCL based on UE discovery
Point).If new cell participates in NAICS that is to say, that being ready to apply subset to limit, network (such as BS1) will be this cell
It is added to INCL.Similarly, network (such as BS1) can also remove cell from INCL.
After receiving a NAICS information aggregate, at step S202, it is true that UE1 is based on a NAICS information aggregate
Determine (one or more) the NAICS cell in the middle of neighbor cell.It is presented herein below and show how UE1 determines (one or more) NAICS
Two examples of cell：
Example 1：
(not shown) at step S2021, cell ID based on each of INCL neighbor cell for the UE1 measures potential
The quality of NAICS cell.In one embodiment, a NAICS information aggregate also includes cell reference signals (CRS) parameter,
Cell ID based on each of INCL neighbor cell for the UE1 and CRS parameter measurement potential NAICS cell CRS mass (as
One of which quality).
It should be appreciated that in addition to CRS parameter, potential NIACS can also be measured using other kinds of parameter little
The quality in area, such as CSI-RS (channel state information reference signals) or DRS (discovery reference signal).
(not shown) at step S2022, UE1 is determined in the middle of PNC set based on the quality of measured potential NAICS
(one or more) NAICS cell.
Example 2：
First, in step S2021 ' place's (not shown), UE1 is determined adjacent little in INCL based on cell ID of neighbor cell
The set of the potential NAICS cell (PNC) in the middle of area；
For step S2021 ', there are different modes to determine the set of PNC.For example, UE1 measures INCL first
In neighbor cell reference signal quality；The reference signal quality being subsequently based on measured neighbor cell determines in INCL
The set of the potential NAICS cell (PNC) in the middle of neighbor cell.
In one embodiment, a NAICS information aggregate includes cell ID corresponding to the cell in INCL.BS1 can
To configure threshold value SNAICS corresponding to UE1.UE1 measures the reference signal quality of each of INCL cell, and if
The reference signal quality of one cell is higher than SNAICS, then this cell is defined as PNC set and one of works as.Such reference
One example of signal quality can be the RSRP of the neighbor cell in INCL.Wherein UE needs assessment NAICS so will be reduced
The number of the cell of the suitability.The set meeting the cell in the INCL of this standard is referred to as potential NAICS cell (PNC).
After determining the set of PCN, in step S2022 ' place's (not shown), the cell ID survey based on potential cell for the UE1
Measure the quality of potential NAICS cell.
In one embodiment, a NAICS information aggregate also includes cell reference signals (CRS) parameter.For being adjusted
Cell ID based on potential NAICS cell of the PRB (namely comprising the PRB of the data corresponding to UE1) of degree, UE1 and CRS parameter
The CRS signal quality (as one of which quality) of each of measurement PNC set potential NAICS cell.It should be appreciated that
Because the transmission from Serving cell may serve as interference (particularly when transmission be go to another cell if), therefore
Measurement for the CRS signal quality of interfered cell is probably highly difficult.As shown in fig. 1, UE1 is connected to the cell of BS1
1, and attempt measuring the CRS signal quality of the cell 2 (i.e. interfered cell) of BS2.BS1 also transmits data to UE2, and this biography
Send the interference signal quality measured to the CRS of BS2 by serving as UE1.But if the data transmission of BS1 is for UE1, then UE1
It is possible to decode this signal from BS1, and accounted for when measuring the CRS signal quality of cell 2 of BS2.
It should be appreciated that in addition to CRS parameter, potential NIACS can also be measured using other kinds of parameter little
The quality in area, such as CSI-RS (channel state information reference signals) or DRS (discovery reference signal).
Subsequently, in step S2023 ' place's (not shown), UE1 is based on measured (one or more) potential NAICS cell
Quality determine PNC set in the middle of (one or more) NAICS cell.It should be appreciated that UE1 can based on multiple standards Lai
Determine (one or more) NAICS cell.In general, (one or more) interfered cell with first water will be (one
Individual or multiple) dominate interfered cell, so that UE has highest probability counteracting/suppression little from (one or more) interference
Any interference in area.
Two examples of (one or more) NAICS cell of showing UE1 how to determine PNC set in the middle of are presented herein below：
Example 3：
UE1 determines the cell of the predefined number in the middle of PNC set so that as (one or more) NAICS cell, it has
There is the quality of remaining cell in the middle of higher than PNC set.
Example 4：
UE1 determine PNC set in the middle of the quality having higher than the first defined threshold value (one or more) cell with
As (one or more) NAICS cell.For example, if the CRS signal quality of a potential NAICS cell for
The TTRIGGER second is higher than threshold value STRIGGER, then UE1 determines that this potential NAICS cell is NAICS cell, and UE1 is reported to
The base station of cell is so that triggering NAICS.Parameter STRIGGER and TTRIGGER can be configured by network (BS1), and can be
Receptor ability based on UE1.
It should be appreciated that in addition to example above it is adaptable to the present invention for determining (one or more) NAICS
The other modes of cell should also be as falling in protection scope of the present invention and merged here by reference.
After the determination of step S202, at step S203, UE1 is to (one or many determined by base station BS 1 transmission
Individual) cell ID of NAICS cell, so that triggering activation NAICS.
After receive cell ID of (one or more) NAICS cell from the UE of the first number, at step S204,
When the first number meets six threshold values, BS1 triggering (one or more) NAICS cell activation NAICS operation.
Specifically, for example include some UE including UE1 determine PNC set in BS2 interfered cell be need by
The NAICS cell of triggering NAICS operation, and send trigger request to BS1, including cell ID of the cell 2 of BS2.?
After these UE receive cell ID of cell 2 of BS2, it is used for the interfered cell of triggering and BS2 if there are enough UE
NAICS, then BS1 determine triggering NAICS, then to BS2 send for triggering NAICS request.Receiving for triggering
After the request of NAICS, BS2 can limit to NAICS application subset, and sends the information relevant with subset restriction to BS1.
After receiving the information relevant with subset restriction from BS2, BS1 will provide the information relevant with subset restriction to UE, and
NAICS is activated for these UE.These UE therefore may operate in the NAICS of the interfered cell of BS2 in.
In a preferred embodiment, when operation is in NAICS, the ginseng of the neighbor cell in UE1 test constantly INCL
Examine signal quality.
Subsequently, UE1 can based on new PNC monitor in example measured by neighbor cell reference signal quality come more
The set of the potential NAICS cell (PNC) in the middle of neighbor cell in new INCL.
In a further advantageous embodiment, the matter based on the cell ID test constantly potential NAICS cell of potential cell for the UE1
Amount.In one embodiment, a NAICS information aggregate also includes cell reference signals (CRS) parameter.UE1 is based on potential
The CRS signal quality of the potential NAICS cell of each of cell ID of NAICS cell and CRS parameter test constantly PNC set
(as one of which quality).
It should be appreciated that in addition to CRS parameter, potential NIACS can also be measured using other kinds of parameter little
The quality in area, such as CSI-RS (channel state information reference signals) or DRS (discovery reference signal).
Subsequently, UE1 can potential NAICS according to measured by new NAICS district monitoring example quality come more
(one or more) NAICS cell in the middle of new PNC set.
The flow chart that Fig. 3 shows the method disabling NAICS for triggering according to a preferred embodiment of the present invention.
It is described in greater detail below with reference to Fig. 2 and with reference to Fig. 1：
As shown in Figure 3, UE1 operates in the NAICS with BS2.At step S205, UE1 persistently detect operation with
The information that the quality of the UE in the NAICS of NAICS cell reduces.Described quality reduction includes, without being limited in the middle of the following
Any one：
1) UE in NAICS for the operation return back to the situation that wherein there is not NAICS that is to say, that UE cannot utilize
NAICS information come to offset or suppress disturb；
2) UE in NAICS for operation, the Block Error Rate (BLER) of packet when using NAICS is beyond predetermined
Adopted threshold value SBLER.
At step S206, UE deactivation when determining that the information of quality reduction of detected UE meets predefined standard
NAICS with NAICS cell.And UE1 sends the deactivation notice of cell ID including disabled NAICS cell to BS1.Institute
State predefined standard and include, without being limited to the following and any one of work as：
1) number of times returning back to no NAICS situation exceeds Second Threshold SFALLBACK in time period TFALLBACK, its
Described in quality reduce information be the no NAICS situation returning back to UE；
2) number of times returning back to no NAICS situation in succession exceeds the 3rd threshold value SFALLBACK ', wherein said quality reduces
Information be to return back to no NAICS situation in succession；Or
3) when operation with the NAICS of NAICS cell in when UE packet BLER super in time period TBLER
Go out the 4th threshold value SBLER.
At step S207, when from disabled with the UE of second number of the NAICS of NAICS cell receive with
During the deactivation notice of NAICS of NAICS interfered cell (cell 2 of such as BS2), BS1 sends to BS2 and disables for triggering
The request of NAICS operation, if number (the such as first number and second number of remaining UE in the NAICS with BS2 for the operation
Difference) meet the 5th threshold value, then mean do not have enough UE to support the effective NAICS with BS2.
It should be appreciated that in addition to mode above it is adaptable to the deactivation for determining NAICS of the present invention other
Mode should also be as falling in protection scope of the present invention and merged here by reference.
Fig. 4 shows the schematic diagram of the system for triggering NAICS according to an embodiment of the invention.To join below
It is described in greater detail according to Fig. 4 and with reference to Fig. 1：
As shown in figure 1, the circumference of the cell being located proximate to interference base station BS2 of UE1 in the cell of serving BS BS1,
Therefore disturbed by from BS2 during the downlink and uplink communication with BS1.
As shown in Figure 4, the device 101 (it is referred to as " the first dispensing device ") in BS1 is to the Serving cell positioned at BS1
In (one or more) UE send a NAICS information aggregate, the wherein the first NAICS information aggregate include disturb NAICS little
Cell ID of the neighbor cell in area's list (INCL).
During the configuration of wireless network, INCL can be predefined for each cell (cell 1 of such as BS1)
And it is static/semi-static.Preferably, network can correspond to the cell in the INCL of UE by RRC config update.This
One renewal can be to be not located at new cell (as its existing mobility code in original I NCL based on UE discovery
Point).If new cell participates in NAICS that is to say, that being ready to apply subset to limit, network (such as BS1) will be this cell
It is added to INCL.Similarly, network (such as BS1) can also remove cell from INCL.
By the device 201 (it is referred to as " first receiving device ") in UE1 receive a NAICS information aggregate it
Afterwards, based on a NAICS information aggregate, the device 202 (it is referred to as " the first determination device ") in UE1 determines that neighbor cell is worked as
In (one or more) NAICS cell.Two realities showing UE1 how to determine (one or more) NAICS cell are presented herein below
Example：
Example 1：
Cell ID based on each of INCL neighbor cell for measuring apparatus 2021 (not shown) in device 202 and
The quality of CRS parameter measurement potential NAICS cell.In one embodiment, a NAICS information aggregate also includes cell reference
Signal (CRS) parameter, cell ID based on each of INCL neighbor cell for the UE1 and CRS parameter measurement potential NAICS cell
CRS mass (as one of which quality).
It should be appreciated that in addition to CRS parameter, potential NIACS can also be measured using other kinds of parameter little
The quality in area, such as CSI-RS (channel state information reference signals) or DRS (discovery reference signal).
In device 202, based on the quality of measured potential NAICS, locking equipment 2022 (not shown) determines that PNC gathers really
Central (one or more) NAICS cell.
Example 2：
First, the first determination equipment 2021 ' (not shown) in device 202 determines INCL based on cell ID of neighbor cell
In neighbor cell in the middle of potential NAICS cell (PNC) set；
There are different modes to determine the set of PNC.For example, the measurement module of the first determination equipment 2021 ' is first
The first reference signal quality of the neighbor cell in measurement INCL；The determining module of subsequent first determination equipment 2021 ' is based on to be surveyed
The reference signal quality of the neighbor cell of amount determines the set of the potential NAICS cell (PNC) in the middle of the neighbor cell in INCL.
In one embodiment, a NAICS information aggregate includes cell ID corresponding to the cell in INCL.BS1 can
To configure threshold value SNAICS corresponding to UE1.First determines in the measurement module (not shown) measurement INCL in equipment 2021 '
The reference signal quality of each cell.If the reference signal quality of a subsequent cell is higher than threshold value SNAICS, first
Determine that determining module (not shown) in equipment 2021 ' is defined as PNC set this cell and one of works as.Such signal matter
One example of amount can be the RSRP of the neighbor cell in INCL.The wherein UE needs assessment NAICS suitability so will be reduced
Cell number.The set meeting the cell in the INCL of this standard is referred to as potential NAICS cell (PNC).
Measuring apparatus 2022 ' (not shown) base after the set of PCN is determined by the first determination equipment 2021 ', in UE1
In cell ID of potential cell and the CRS mass of the potential NAICS cell of CRS (cell reference signals) parameter measurement.
In one embodiment, a NAICS information aggregate also includes cell reference signals (CRS) parameter.For being adjusted
The PRB (namely comprising the PRB of the data corresponding to UE1) of degree, in UE1, locking equipment 2022 ' is based on potential NAICS cell really
Cell ID and CRS parameter measurement PNC set each of potential NAICS cell CRS signal quality (as one of which
Quality).It should be appreciated that because the transmission from Serving cell may serve as interference (particularly when transmission is to go to separately
If one cell), it is probably highly difficult therefore for the measurement of the CRS signal quality of interfered cell.As shown in fig. 1,
UE1 is connected to the cell 1 of BS1, and attempts measuring the CRS signal quality of the cell 2 (i.e. interfered cell) of BS2.BS1 also to
UE2 transmits data, and this transmission interference signal quality measured to the CRS of BS2 by serving as UE1.But if the data of BS1
Transmission is for UE1, then the measurement module in UE1 is possible to decode this signal from BS1, and the cell 2 in measurement BS2
CRS signal quality when accounted for.
It should be appreciated that in addition to CRS parameter, potential NIACS can also be measured using other kinds of parameter little
The quality in area, such as CSI-RS (channel state information reference signals) or DRS (discovery reference signal).
Subsequently, the second determination equipment 2023 ' (not shown) in UE1 is potential based on measured (one or more)
The quality of NAICS cell determines (one or more) the NAICS cell in the middle of PNC set.It should be appreciated that the second determination equipment
2023 ' can determine (one or more) NAICS cell based on multiple standards.In general, there is (one of first water
Or multiple) interfered cell will be (one or more) leading interfered cell, so that UE has highest probability to offset/suppression
Any interference from (one or more) interfered cell.It is presented herein below and show how the second determination equipment 2023 ' determines that PNC gathers
Two examples of central (one or more) NAICS cell：
Example 3：
Second determination equipment 2023 ' determines the cell of the predefined number in the middle of PNC set using as (one or more)
NAICS cell, it has the quality of remaining cell in the middle of higher than PNC set.
Example 4：
Second determination equipment 2023 ' determines (of the quality having higher than the first defined threshold value in the middle of PNC set
Or multiple) cell is using as (one or more) NAICS cell.For example, if the CRS letter of a potential NAICS cell
Number quality is higher than threshold value STRIGGER for the TTRIGGER second, then UE1 determines that this potential NAICS cell is NAICS cell, UE1
It is reported to the base station of cell so that triggering NAICS.Parameter STRIGGER and TTRIGGER can be joined by network such as BS1
Put, and can be the receptor ability based on UE1.
It should be appreciated that in addition to example above it is adaptable to the present invention for determining (one or more) NAICS
The other modes of cell should also be as falling in protection scope of the present invention and merged here by reference.
After the determination of device 202, device 203 (it is referred to as " the second dispensing device ") in UE1 is to base station BS 1
Cell ID of (one or more) NAICS cell determined by sending, so that triggering activation NAICS.
Receive (one or more) in device 102 (it is referred to as " first receiving device ") from the UE of the first number
After cell ID of NAICS cell, when the first number meets six threshold values, (it is referred to as " triggering dress to the device 103 in BS1
Put ") triggering (one or more) NAICS cell activation NAICS operation.
Specifically, for example include some UE including UE1 determine PNC set in BS2 interfered cell be need by
The NAICS cell of triggering NAICS operation, and send trigger request to BS1, including cell ID of the cell 2 of BS2.?
After these UE receive cell ID of cell 2 of BS2, it is used for the interfered cell of triggering and BS2 if there are enough UE
NAICS, then device 103 in BS1 determine triggering NAICS, send the request for triggering NAICS then to BS2.Receiving
To after the request for triggering NAICS, BS2 can limit to NAICS application subset, and sends and subset restriction to BS1
Relevant information.After receiving the information relevant with subset restriction from BS2, BS1 is relevant with subset restriction by providing to UE
Information, and for these UE activate NAICS.These UE therefore may operate in the NAICS of the interfered cell of BS2 in.
In a preferred embodiment, when operation is in NAICS, the measurement mould of the first determination equipment 2021 ' in UE1
The reference signal quality of the neighbor cell in block test constantly INCL.
Subsequently, the determining module of the first determination equipment 2021 ' in UE1 can monitor the institute in example based on new PNC
The reference signal quality of the neighbor cell of measurement is updating potential NAICS cell (PNC) in the middle of the neighbor cell in INCL
Set.
In a further advantageous embodiment, cell ID based on potential cell for the measuring apparatus 2022 ' in UE1 and CRS ginseng
The quality of number test constantly potential NAICS cell.In one embodiment, a NAICS information aggregate also includes cell reference
Signal (CRS) parameter.Cell ID based on potential NAICS cell for the measuring apparatus 2022 ' and CRS parameter test constantly PNC set
Each of potential NAICS cell CRS signal quality (as one of which quality).
It should be appreciated that in addition to CRS parameter, potential NIACS can also be measured using other kinds of parameter little
The quality in area, such as CSI-RS (channel state information reference signals) or DRS (discovery reference signal).
Subsequently, the second determination equipment 2023 ' in UE1 can be according to measured by new NAICS district monitoring example
Potential NAICS quality come to update PNC set in the middle of (one or more) NAICS cell.
Fig. 5 shows the schematic diagram of the system disabling NAICS for triggering according to an embodiment of the invention.Below
To be described in greater detail with reference to Fig. 5 and with reference to Fig. 1 and 4：
As shown in Figure 5, UE1 operates in the NAICS with BS2.(it is referred to as " detection dress to device 204 in UE1
Put ") persistently detection operation with the NAICS of NAICS cell in UE quality reduce information.Described quality reduce include and
It is not limited to the following any one of to work as：
1) UE in NAICS for the operation return back to the situation that wherein there is not NAICS that is to say, that UE cannot utilize
NAICS information come to offset or suppress disturb；
2) UE in NAICS for operation, the Block Error Rate (BLER) of packet when using NAICS is beyond predetermined
Adopted threshold value SBLER.
After the detection of device 204, the device 205 (it is referred to as " off-stream unit ") in UE1 is detected in determination
The information that reduces of quality of UE meet and disable and the NAICS of NAICS cell during predefined standard, and send to BS1 and include
The deactivation notice of cell ID of NAICS cell being disabled.Described predefined standard includes, without being limited in the middle of the following
Any one：
1) number of times returning back to no NAICS situation exceeds Second Threshold SFALLBACK in time period TFALLBACK, its
Described in quality reduce information be the no NAICS situation returning back to UE；
2) number of times returning back to no NAICS situation in succession exceeds the 3rd threshold value SFALLBACK ', wherein said quality reduces
Information be to return back to no NAICS situation in succession；Or
3) when operation with the NAICS of NAICS cell in when UE packet BLER super in time period TBLER
Go out the 4th threshold value SBLER.
Subsequently, when UE (for example including having disabled the UE1 with the NAICS of the NAICS cell) reception from the second number
When arriving the deactivation notice with the NAICS of NAICS cell, the device 105 (it is referred to as " off-stream unit ") in BS1 is done to NAICS
Disturb cell (such as BS2) and send the request disabling NAICS operation for triggering, if residue in the NAICS with BS2 for the operation
The number (difference of the such as first number and the second number) of UE meets the 5th threshold value, then mean do not have enough UE to support
Effective NAICS with BS2.
It should be appreciated that in addition to mode above it is adaptable to the deactivation for determining NAICS of the present invention other
Mode should also be as falling in protection scope of the present invention and merged here by reference.
It should be recognized by those skilled in the art that the aforementioned device in UE1 or BS2 and module can be independent of one another.Or,
Therein part or all can be integrated together in single assembly.
Need it is to be noted that the present invention can be implemented with combining of hardware by software and/or software, the such as present invention
Can implement by using special IC (ASIC), general purpose computer or any other similar hardware equipped.?
In one embodiment, the software program of the present invention can be by computing device to realize abovementioned steps or function.Similarly, this
Bright software program (including related data structure) can be stored in computer readable recording medium storing program for performing, and such as RAM stores
Device, magnetic-light driver or floppy disk and similar devices.Additionally, some steps of the present invention or function can be by using hardware
To realize, for example, to cooperate with implementing the circuit of various steps or function with processor.
Additionally, a part of of the present invention can apply as computer program, such as computer program instructions, when
When described instruction is executed by computer, the operation calls of computer can be passed through or the method according to the invention and/or skill are provided
Art solution.But for calling the programmed instruction of the method for the present invention to be possibly stored in fixed or movable recording medium
In, and/or transmitted by broadcast or other signal vehicle media, and/or be stored in and referred to according to described program
In the operation memorizer of computer equipment that order runs.Include an equipment, institute herein according to one embodiment of the present of invention
The equipment of stating includes the memorizer for storing computer program instructions and the processor for execute program instructions, when by described
During computing device computer program instructions, this equipment be triggered the method based on previously described embodiments of the present invention for the operation and/or
Technical solution.
It is apparent to a person skilled in the art that the invention is not restricted to the thin of above-mentioned exemplary embodiment
Section, additionally, on the premise of the spirit or essential attributes without departing substantially from the present invention, can realize this by other concrete forms
Bright.Therefore, no matter which point all should be considered exemplary and nonrestrictive from, the scope of the present invention is by institute for described embodiment
Attached claims rather than description above limit, and are intended to fall the implication of the equivalent elements in claims
And all changes falling within the scope of the present invention.It is involved that any reference in claim is not construed as restriction
And claim.It is further clear that "comprises/comprising" one word is not excluded for other assemblies or step, odd number is not excluded for
Plural number, the multiple assemblies mentioned in the device claim or device by an assembly or device or can also pass through software
Or hardware is realizing, the such as word such as " first " and " second " is only used to represent title rather than any particular order.
Claims (15)
1. the device in a kind of UE of the wireless network for triggering NAICS, wherein said device includes：
Base station for the Serving cell from UE receives the device of a NAICS information aggregate, and it is in interference NAICS cell list
(INCL) include cell ID of neighbor cell；
For determining the device of (one or more) the NAICS cell in the middle of neighbor cell based on a NAICS information aggregate；
Cell ID for (one or more) NAICS cell determined by sending to base station is so that the device of triggering NAICS.
2. the device of claim 1, wherein, the described device for determining (one or more) NAICS cell also includes：
For determining the collection of the potential NAICS cell (PNC) in the middle of the neighbor cell in INCL based on cell ID of neighbor cell
The the first determination equipment closing；
For measuring the measuring apparatus of the quality of potential NAICS cell based on a NAICS information aggregate of potential cell；
For determining the of (one or more) NAICS cell in the middle of PNC set based on the quality of measured potential NAICS
Two determination equipment.
3. the device of claim 2, wherein, described first determining module includes：
For measuring the measurement module of the reference signal quality of the neighbor cell in INCL；
For determining the potential NAICS in the middle of the neighbor cell in INCL based on the reference signal quality of measured neighbor cell
The determining module of the set of cell (PNC).
4. the device of claim 3, wherein, described second determination equipment is suitable to determine (one based on any one of following standard
Individual or multiple) NAICS cell：
- determining the cell of predefined number in the middle of PNC set using as (one or more) NAICS cell, it has and is higher than
The quality of remaining cell in the middle of PNC set；
- determine (one or more) cell of the central quality having higher than first threshold of PNC set using as (one or many
Individual) NAICS cell.
5. the device of any one of claim 3, wherein, described measurement module is suitable to continuously measure the neighbor cell in INCL
Reference signal quality；
Wherein, described determining module be suitable to based on new PNC monitor in example measured by neighbor cell reference signal matter
Measure and to update the set of the potential NAICS cell (PNC) in the middle of the neighbor cell in INCL.
6. the device of any one of claim 2 to 5, wherein, described measuring apparatus are suitable to the NAICS based on potential cell
Information aggregate continuously measures the quality of potential NAICS cell；
Wherein, the second determination equipment is suitable to the quality according to the measured potential NAICS in new NAICS district monitoring example
To update (one or more) the NAICS cell in the middle of PNC set.
7. the device of any one of claim 1 to 6, it also includes：
For detection operation with the NAICS of NAICS cell in UE quality reduce information device；And
For disabling and NAICS cell when meeting predefined standard in the information determining that the quality of detected UE reduces
The device of NAICS.
8. the device of claim 7, wherein, described predefined standard includes the following and any one of works as：
- it return back to the number of times of no NAICS situation in time period TFallbackInterior beyond Second Threshold SFallback, wherein said quality fall
Low information is the no NAICS situation returning back to UE；
- it return back to the number of times of no NAICS situation in succession beyond the 3rd threshold value SFallback', the information that wherein said quality reduces is
It return back to no NAICS situation；Or
- when operation with the NAICS of NAICS cell in when UE packet BLER in time period TBLERInside exceed the 4th
Threshold value SBLER.
9. the device in a kind of base station of the wireless network for triggering NAICS, wherein, described device includes：
For sending the device of a NAICS information aggregate to (one or more) UE, it is in interference NAICS cell list
(INCL) include cell ID of neighbor cell；
For receiving the device of cell ID of (one or more) NAICS cell from the UE of the first number；
For triggering (one or more) NAICS cell activation NAICS operation in the case of being higher than the 5th threshold value in the first number
Device.
10. the device of claim 9, wherein, it also includes：
For receiving with regard to disabling and NAICS cell with the UE of second number of the NAICS of NAICS cell from having disabled
The device of the notice of NAICS；
Disable for triggering NAICS cell in the case of being less than the 6th threshold value in operation in the number of the remaining UE in NAICS
The device of NAICS operation.
Method in a kind of 11. UE of the wireless network for triggering NAICS, wherein, methods described includes：
- receiving a NAICS information aggregate from the base station of the Serving cell of UE, it is in INCL (interference NAICS cell list)
Cell ID including neighbor cell；
- (one or more) NAICS cell in the middle of neighbor cell is determined based on a NAICS information aggregate；
- to base station send determined by (one or more) NAICS cell cell ID in case triggering NAICS.
Method in a kind of 12. base stations of the wireless network for triggering activation NAICS, wherein, methods described includes：
- sending a NAICS information aggregate to (one or more) UE, it includes in interference NAICS cell list (INCL)
Cell ID of neighbor cell；
Wherein, methods described also includes：
- cell ID of (one or more) NAICS cell is received from the UE of the first number；
- triggering (one or more) NAICS cell activation NAICS operation in the case that the first number is higher than the 5th threshold value.
A kind of 13. UE of the wireless network for triggering NAICS, wherein, described UE includes any one of claim 1 to 8
Device.
A kind of 14. base stations of the wireless network for triggering NAICS, wherein, described base station includes arbitrary in claim 9 to 10
The device of item.
A kind of 15. computer-readable mediums of the instruction that is wherein stored with, described instruction is in response to being made to succeed in one's scheme by computing device
The method that the enforcement of calculation equipment is limited as any one of claim 11 to 12.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/079951 WO2015192293A1 (en) | 2014-06-16 | 2014-06-16 | Method and apparatus for triggering naics in wireless network |
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| CN106465201B CN106465201B (en) | 2019-06-28 |
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| CN201480079894.6A Active CN106465201B (en) | 2014-06-16 | 2014-06-16 | Method and apparatus for triggering the NAICS in wireless network |
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| WO (1) | WO2015192293A1 (en) |
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| CN103096395A (en) * | 2011-11-04 | 2013-05-08 | 上海贝尔股份有限公司 | Method used for indicating user terminal to reduce interference in base station |
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| WO2015192293A1 (en) | 2015-12-23 |
| CN106465201B (en) | 2019-06-28 |
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