CN104811915B - Method and apparatus for assisting obtaining dynamic network auxiliary information - Google Patents
Method and apparatus for assisting obtaining dynamic network auxiliary information Download PDFInfo
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- CN104811915B CN104811915B CN201410043776.1A CN201410043776A CN104811915B CN 104811915 B CN104811915 B CN 104811915B CN 201410043776 A CN201410043776 A CN 201410043776A CN 104811915 B CN104811915 B CN 104811915B
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- backhaul connection
- serving cell
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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
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
Abstract
Embodiment of the present invention provides the method and apparatus for assisting obtaining dynamic network auxiliary information.This method includes：Determine the information about the backhaul connection state between the serving cell and the neighboring community of the serving cell of user equipment；And provide the information about the backhaul connection state to the user equipment.By using scheme proposed by the invention, the dynamic network auxiliary information obtained from serving cell or dominant interference cell for dominant interference cell can be adaptive selected according to the backhaul connection state between serving cell and dominant interference cell in user equipment.
Description
Technical field
Embodiments of the present invention are usually related to the communication technology, more particularly, to for assisting obtaining dynamic network
Auxiliary information（dynamic network assistance information）Method and apparatus.
Background technology
Since the spatial reuse of more dense cell and higher level will be deployed in future broadband wireless communication systems, because
This, interference will be as the main bottleneck of realization higher network performance.In the environment of interference limitation, can effectively it suppress or eliminate
The senior receiver of interference（Such as IS/IC（Interference Suppression/Interference
Cancellation, AF panel/interference are eliminated）Receiver）It will play an important role.The characteristic of interference is obtained for IS/
Effective work of IC receivers is necessary.Or interference information is from network side（That is, network assistance）Obtain or pass through user
Equipment（UE）The blind Detecting of itself obtains.On the other hand, one or more base stations（eNB）Transmission is changed/limits by coordinating
Parameter（For example, to TM（Transmission mode）/Rank（Rank）/MCS（Modulation and Coding Scheme）/PDSCH（Physical Downlink Shared Channel）
Distribution applies limitation）Also it can promote effective operation of IS/IC receivers.Indicate that it is also to pass through network to coordinate result to receiver
Auxiliary information is realized.
In upper primary 3GPP RAN1 " Draft_Minutes_report_RAN1#75_v010 " meeting（That is RAN1#75）
In, in technical report " Network-Assisted Interference Cancellation and Suppression
（NAICS）The possibility information for the work that can promote IS/IC receivers has been had been written into for LTE ".
In general, network-assist information is roughly divided into following three classes：Static information（When long）, semi-static information
（A few tens of milliseconds or hundreds of milliseconds）And multidate information（For each TTI）.Static information can be sent to UE from core net.By
In not very strict time restriction, therefore semi-static information can be by coming from serving cell high-level signaling（Such as RRC signaling
Or MAC layer signaling）To carry.About multidate information, then physical layer signaling is needed to carry and be taken off in 3GPP RAN1 are discussed
Two kinds of transmission modes are shown.
Fig. 1 shows two kinds of transmission modes of dynamic network auxiliary information.First way is the service being resident by UE
Cell（Such as the cell 1 in Fig. 1）Dynamic network auxiliary information is sent to UE.The second way is by as main interference source
Dominant interference cell（Such as the cell 2 in Fig. 1）Dynamic network auxiliary information is sent to UE.First way is only in serving cell
It can work when there is ideal backhaul connection between dominant interference cell.The second way serving cell and dominant interference cell it
Between exist it is usable when ideal backhaul connection is connected with non-ideal backhaul.
However, in the prior art, needing to use first way or second of side in predetermined determine in the sides UE and the sides eNB
Formula transmits dynamic network auxiliary information, and once it is determined that, it will be auxiliary to UE transmission dynamic networks according to identified mode
Supplementary information.In other words, in the prior art, dynamic network auxiliary information always is sent from the serving cell that UE is resident to UE,
Or dynamic network auxiliary information always is sent from dominant interference cell to UE, serving cell and dominant interference cell without considering UE
Between backhaul connection state how, i.e., do not consider it is ideal backhaul connection or non-ideal backhaul connection therebetween.As a result,
If it is determined that transmit dynamic network auxiliary information using the second way, then UE serving cell and dominant interference cell it
Between be ideal backhaul connection in the case of, for the second way, since dominant interference cell can not obtain the accurate letter of UE
Channel state information, therefore, it is difficult to be directed to UE（Specifically to the IS/IC receivers in UE）Optimize dynamic network auxiliary information
Physical layer transmission, thus can not ensure the robustness of dynamic network assistance information transmission.In addition, in the serving cell and trunk of UE
Disturb between cell in the case of being ideal backhaul connection, for the second way, due to UE need to execute operation bidirectional with
Dynamic network auxiliary information from dominant interference cell is decoded, thus considerably increases UE complexities；And for first
For kind of mode, the robustness problem of dynamic network assistance information transmission and additional decoding operate problem are simultaneously not present.
Therefore, it is necessary to a kind of method that auxiliary obtains dynamic network auxiliary information be provided, so that UE can be according to clothes
Backhaul connection state between cell of being engaged in and dominant interference cell is adaptive selected from serving cell or the acquisition of dominant interference cell
For the dynamic network auxiliary information of dominant interference cell.
Invention content
Embodiments of the present invention propose a kind of scheme of auxiliary acquisition dynamic network auxiliary information, with solution or at least
Partly alleviate at least part of described problem of the existing technology.
According to embodiment of the present invention in a first aspect, providing a kind of for assisting obtaining dynamic network auxiliary information
Method.This method includes：It determines about the backhaul between the serving cell and the neighboring community of the serving cell of user equipment
The information of connection state；And provide the information about the backhaul connection state to the user equipment.
In the exemplary embodiment, the neighboring community of the serving cell and the serving cell about user equipment is determined
Between the information of backhaul connection state include：First community list is built, the first community list includes described adjacent small
The identifier for the cell being connect with ideal backhaul among area, between the serving cell；And structure second community list,
The second community list includes that among the neighboring community, between the serving cell to there is non-ideal backhaul to connect small
The identifier in area.
In the exemplary embodiment, it includes logical to be provided to the user equipment about the information of the backhaul connection state
Cross information of the broadcast signaling to user equipment broadcast about the backhaul connection state.
In the exemplary embodiment, it includes logical to be provided to the user equipment about the information of the backhaul connection state
The information provided specific to the signaling of user equipment to the user equipment about the backhaul connection state is provided.
In the exemplary embodiment, the neighboring community includes the son of all cells adjacent with the serving cell
Collection, the subset are determined according to the information specific to the user equipment.
In the exemplary embodiment, the method further includes：In response to the interference ring for the user equipment
The variation in border redefines the backhaul connection between the serving cell and the neighboring community of the serving cell about user equipment
The information of situation；And the information about the backhaul connection state redefined is provided to the user equipment.
In the exemplary embodiment, the method further includes：Dynamic signaling is sent to the user equipment, it is described
Dynamic signaling includes flag bit, is used to indicate the user equipment from the serving cell or from the neighboring community
Dominant interference cell obtain for the dominant interference cell dynamic network auxiliary information.
In the exemplary embodiment, the method further includes：Dynamic signaling is sent to the user equipment, it is described
Dynamic signaling includes the identifier of one of the serving cell or the neighboring community, be used to indicate the user equipment from
Cell indicated by the identifier obtains the dynamic network auxiliary information for the dominant interference cell.
According to the second aspect of embodiment of the present invention, a kind of side for obtaining dynamic network auxiliary information is provided
Method.This method includes：From serving BS receive about user equipment serving cell and the serving cell neighboring community it
Between backhaul connection state information；The dominant interference cell in main interference source is determined as from the neighboring community；And
Based on the information about the backhaul connection state, determines and obtained from the serving cell or the dominant interference cell for institute
State the dynamic network auxiliary information of dominant interference cell.
In the exemplary embodiment, the information about the backhaul connection state includes：Third cell list, described
Three cell lists include the mark for the cell that there is ideal backhaul to connect among the neighboring community, between the serving cell
Symbol；And the 4th cell list, the 4th cell list include having between the serving cell among the neighboring community
There is the identifier of the cell of non-ideal backhaul connection.
In the exemplary embodiment, it based on the information about the backhaul connection state, determines from the serving cell
Or the dominant interference cell acquisition includes for the dynamic network auxiliary information of the dominant interference cell：In the third cell
The identifier that the dominant interference cell is searched in list and/or the 4th cell list, with the determination dominant interference cell with
It is ideal backhaul connection or non-ideal backhaul connection between the serving cell；And in response to the determination dominant interference cell
It is that ideal backhaul is connect between the serving cell, determines and obtained from the serving cell for the dynamic of the dominant interference cell
State network-assist information.
According to the third aspect of embodiment of the present invention, provide a kind of for assisting obtaining dynamic network auxiliary information
Device.The device includes：Determination unit is configured to determine the phase of the serving cell and the serving cell about user equipment
The information of backhaul connection state between adjacent cell；And unit is provided, it is configured to provide about institute to the user equipment
State the information of backhaul connection state.
In the exemplary embodiment, the determination unit is further configured to：Build first community list, described the
One cell list includes the mark for the cell that there is ideal backhaul to connect among the neighboring community, between the serving cell
Symbol；And structure second community list, the second community list includes among the neighboring community, with the serving cell it
Between with non-ideal backhaul connection cell identifier.
In the exemplary embodiment, the offer unit is further configured to set to the user by broadcast signaling
Information of the standby broadcast about the backhaul connection state.
In the exemplary embodiment, the offer unit is further configured to through the signaling specific to user equipment
The information about the backhaul connection state is provided to the user equipment.
In the exemplary embodiment, the neighboring community includes the son of all cells adjacent with the serving cell
Collection, the subset are determined according to the information specific to the user equipment.
In the exemplary embodiment, the determination unit is further configured to for the user equipment
The variation of interference environment redefines time between the serving cell and the neighboring community of the serving cell about user equipment
The information of journey connection state；And it is described unit be provided be further configured to provide to the user equipment redefined
Information about the backhaul connection state.
In the exemplary embodiment, the offer unit is further configured to send dynamic letter to the user equipment
It enables, the dynamic signaling includes flag bit, is used to indicate the user equipment from the serving cell or from the phase
Dominant interference cell in adjacent cell obtains the dynamic network auxiliary information for the dominant interference cell.
In the exemplary embodiment, the offer unit is further configured to send dynamic letter to the user equipment
It enables, the dynamic signaling includes the identifier of one of the serving cell or the neighboring community, is used to indicate the use
Cell of the family equipment indicated by the identifier obtains the dynamic network auxiliary information for the dominant interference cell.
According to the fourth aspect of embodiment of the present invention, a kind of dress for obtaining dynamic network auxiliary information is provided
It sets.The device includes：Receiving unit is configured to receive serving cell and the service about user equipment from serving BS
The information of backhaul connection state between the neighboring community of cell；First determination unit is configured to from the neighboring community
It is determined as the dominant interference cell in main interference source；And second determination unit, it is configured to based on connecting about the backhaul
The information of situation is connect, determines the dynamic obtained from the serving cell or the dominant interference cell for the dominant interference cell
Network-assist information.
In the exemplary embodiment, the information about the backhaul connection state includes：Third cell list, described
Three cell lists include the mark for the cell that there is ideal backhaul to connect among the neighboring community, between the serving cell
Symbol；And the 4th cell list, the 4th cell list include having between the serving cell among the neighboring community
There is the identifier of the cell of non-ideal backhaul connection.
In the exemplary embodiment, second determination unit is further configured to：In the third cell list
And/or the identifier of the dominant interference cell is searched in the 4th cell list, with the determination dominant interference cell with it is described
It is ideal backhaul connection or non-ideal backhaul connection between serving cell；And in response to the determination dominant interference cell and institute
It is ideal backhaul connection to state between serving cell, determines the Dynamic Networks obtained from the serving cell for the dominant interference cell
Network auxiliary information.
By using scheme proposed by the invention, UE can connect according to the backhaul between serving cell and dominant interference cell
Situation is connect, the dynamic network auxiliary letter obtained from serving cell or dominant interference cell for dominant interference cell is adaptive selected
Breath.
In addition, the robustness of dynamic network assistance information transmission is ensured.In addition, when the serving cell and dominant interference of UE
When there is ideal backhaul connection between cell, UE obtains dynamic network auxiliary information from its serving cell, can enjoy ideal
The benefit of backhaul connection, without executing operation bidirectional to be solved to the dynamic network auxiliary information from interfered cell
Code, thus reduce the receiver decoding complex degree of UE.
For the IS/IC receivers in UE, the backhaul situation between the serving cell of UE and dominant interference cell is understood
Help quickly to identify dynamic network assistance information transmission and subsequent start-up IS/IC operations.
Description of the drawings
It refers to the following detailed description in conjunction with the accompanying drawings, the feature, advantage and other aspects of each embodiment of the present invention will become
Must be more obvious, show several embodiments of the present invention by way of example rather than limitation herein.In the accompanying drawings：
Fig. 1 schematically shows two kinds of transmission modes of dynamic network auxiliary information；
Fig. 2 shows according to the method 200 for assist acquisition dynamic network auxiliary information of embodiment of the present invention
Flow chart；
Fig. 3 shows the flow of the method 300 for obtaining dynamic network auxiliary information according to embodiment of the present invention
Figure；
Fig. 4 shows the device 400 for assist acquisition dynamic network auxiliary information according to embodiment of the present invention
Block diagram；And
Fig. 5 shows the block diagram of the device 500 for obtaining dynamic network auxiliary information according to embodiment of the present invention.
Specific implementation mode
The preferred embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the disclosure without the embodiment party that should be illustrated here
Formula is limited.On the contrary, these embodiments are provided so that the disclosure is more thorough and complete, and can be by the disclosure
Range is completely communicated to those skilled in the art.
In the context of the disclosure, user equipment（UE）It may refer to terminal, mobile terminal（MT）, subscriber station（SS）、
Portable subscriber station（PSS）, movement station（MS）Or access terminal（AT）, and the one of UE, terminal, MT, SS, PSS, MS or AT
A little or repertoire can be included.
In addition, in the context of the disclosure, base station（BS）It can for example indicate node B（NodeB or NB）, it is evolved
NodeB（ENodeB or eNB）, relay station, low power nodes, such as femto base station, femto base station etc..
In this application, the adaptive mode for obtaining dynamic network auxiliary information is introduced.In the scheme proposed, UE
Serving cell need the backhaul connection state between the serving cell of UE and dominant interference cell informing each UE so that UE
It can be determined from serving cell or dominant interference cell according to the backhaul connection state and obtain dynamic network auxiliary information.Pass through this
Kind mode, UE can connect the available benefit for enjoying ideal backhaul connection in ideal backhaul.
Fig. 2 shows according to the method 200 for assist acquisition dynamic network auxiliary information of embodiment of the present invention
Flow chart.According to the embodiment of the present invention, method 200 can for example be implemented on serving BS, NodeB, eNodeB, relay station,
Or in any other appropriate equipment in communication system.
In step s 201, it determines and connects shape about the backhaul between the serving cell of UE and the neighboring community of serving cell
The information of condition.The backhaul connection state includes that ideal backhaul connection is connected with non-ideal backhaul.Such as those skilled in the art
Know, " ideal backhaul connection " refers to that two transmission delays between base station or cell are sufficiently small（Such as much smaller than 1ms）, to
Negligible backhaul connection state；And " non-ideal backhaul connection " refers to two transmission delays between base station or cell
It is larger（Such as tens ms）, to can not ignore the backhaul connection state disregarded.
In one embodiment, it determines and connects about the backhaul between the serving cell of UE and the neighboring community of serving cell
The information for connecing situation includes：First community list is built, first community list includes among the neighboring community and serving cell
Between have ideal backhaul connection cell identifier；And structure second community list, second community list include described
The identifier for the cell being connect with non-ideal backhaul among neighboring community, between serving cell.The identifier of the cell
For example, cell ID.
Next, in step S202, the information about backhaul connection state is provided to UE.
In one embodiment, the information about backhaul connection state is broadcasted to UE by broadcast signaling（Hereinafter referred to as
" broadcasting scheme "）.In this embodiment, it may be determined that about between serving cell and all neighboring communities of serving cell
The information of backhaul connection state.Alternatively, it is possible to determine a subset of all neighboring communities first, pass then can be determined
The information of backhaul connection state between cell in serving cell and the subset.May include in the subset it is any potentially
The cell that UE is interfered.ENB can determine that the UE potentially serviced it is caused according to any existing appropriate algorithm
The cell of interference, thus details are not described herein.As a specific example, the broadcast signaling can be MIB（Master
Information Block, Master Information Block）Or SIB（Secondary Information Block, auxiliary block of information）Signaling, and
And PBCH can be passed through（Physical Broadcast Channel, Physical Broadcast Channel）Or PDCCH（Physical
Downlink Control Channel, physical downlink control channel）To transmit MIB the or SIB signalings.
The first community list and the second community list can be carried in the broadcast signaling.In order to enable UE can
The first community list carried in the broadcast signaling and second community list are distinguished, can be incited somebody to action according to predetermined order
The first community list and the second community list are arranged in the broadcast signaling, for example it may be predetermined that first
Cell list is prior to second community list.As a kind of interchangeable scheme, can also be carried in the broadcast signaling and the
The associated identification information of one of one cell list and second community list, such as identification bit, to indicate associated cell
List is first community list or second community list.For example, can be carried in the broadcast signaling and first community list
Associated identification bit, and can presetting indicates that associated cell list is first when the identification bit=0
Cell list, when and identification bit=1, indicate that associated cell list is second community list.
From the perspective of network, the backhaul connection state between the serving cell and dominant interference cell of UE depends on network
Initial deployment and will not change over time.However, from the perspective of receiver, due to the mobility of UE and variable
Interference environment, different cells may be small as dominant interference as serving cell and in subsequent period in a certain amount of time
Area, therefore backhaul connection state also can correspondingly change.In addition, when the interference environment for UE changes, above-mentioned first
It is likely to occur variation with the member in second community list.For example, in a certain amount of time, some cell is not above-mentioned first
Become in the subsequent period cell and UE is caused to interfere significantly with and due to the mobility of UE with the member in second community list
Cell.Therefore, according to one embodiment, based on the information about the backhaul connection state, determine small from the service
Area or dominant interference cell acquisition include for the dynamic network auxiliary information of the dominant interference cell：In response to being directed to UE
Interference environment variation, redefine about between the serving cell of UE and the neighboring community of serving cell backhaul connect shape
The information of condition；And the information about backhaul connection state redefined is provided to UE.By this mode, can reduce
Dominant interference cell is excluded in the possibility except above-mentioned first and second cell list.
It is appreciated that in above-mentioned " broadcasting scheme ", signaling overheads is low-down, because the transmission of broadcast signaling will not
Transmission that is especially frequent and being specific for cell.
It, can be by being provided specific to the signaling of UE to UE about returning as the alternate embodiments of above-mentioned " broadcasting scheme "
The information of journey connection state（Hereinafter referred to as " specific to the scheme of UE "）.As a specific example, the letter specific to UE
Order can be RRC signaling.Also the first community list and second community list can be carried in the signaling specific to UE.Institute
State first community list and second community list can be arranged in the manner described above it is described specific in the signaling of UE,
Thus repeat no more.
In " specific to the scheme of UE ", each UE that eNB can be serviced first against it, according to respective specific in UE's
Information determines a subset of cells from the corresponding neighboring community for the corresponding UE, then can determine about serving cell
The information of backhaul connection state between the cell in the subset.The information specific to UE includes but not limited to：UE's
The interference strength of location information, the mobility of UE and neighboring community.As it can be seen that in " specific to the scheme of UE ", due in determination
The information specific to UE is considered when member in above-mentioned first community list and second community list, thus true according to the program
The number of fixed first community list and the member in second community list will be not more than determining according to above-mentioned " broadcasting scheme "
The number of first community list and the member in second community list.Further, since considering the information specific to UE, therefore drop
The low possibility being excluded in dominant interference cell except above-mentioned first and second cell list.It is appreciated that receiver in UE
It is long when interference measurement and jamming report will be helpful to service eNB determinations and will be comprised in above-mentioned first community list and/or the
Cell in two cell lists.
As another alternate embodiments of above-mentioned " broadcasting scheme ", dynamic signaling, the dynamic signaling can be sent to UE
Include flag bit, is used to indicate UE and is obtained for dominant interference from serving cell or from the dominant interference cell in neighboring community
The dynamic network auxiliary information of cell.
As the another alternate embodiments of above-mentioned " broadcasting scheme ", dynamic signaling, the dynamic signaling can be sent to UE
Include the identifier of one of serving cell or neighboring community, is used to indicate cell acquisitions of the UE indicated by the identifier and is directed to
The dynamic network auxiliary information of dominant interference cell.
Fig. 3 shows the flow of the method 300 for obtaining dynamic network auxiliary information according to embodiment of the present invention
Figure.According to the embodiment of the present invention, method 300 can for example be implemented on UE, mobile terminal（MT）, subscriber station（SS）, it is portable
Subscriber station（PSS）, movement station（MS）Or access terminal（AT）In.
In step S301, received from serving BS about between the serving cell of UE and the neighboring community of serving cell
The information of backhaul connection state.
In step s 302, the dominant interference cell in main interference source is determined as from neighboring community.For example, UE can be with
The dominant interference cell is determined according to self-ability and/or interference measurement results.
In step S303, based on the information about backhaul connection state, determine from serving cell or dominant interference cell
Obtain the dynamic network auxiliary information for dominant interference cell.
In one embodiment, the information about backhaul connection state includes：Third cell list, third cell list
Identifier including the cell being connect with ideal backhaul among neighboring community, between serving cell；And the 4th cell row
Table, the 4th cell list include the mark for the cell being connect with non-ideal backhaul among neighboring community, between serving cell
Symbol.
In one embodiment, method 300 further comprises：In third cell list and/or the 4th cell list
The identifier for searching dominant interference cell, to determine between dominant interference cell and serving cell being ideal backhaul connection or non-ideal
Backhaul connects；And it in response to being that ideal backhaul connects between determining dominant interference cell and serving cell, is obtained from serving cell
For the dynamic network auxiliary information of dominant interference cell.
It is appreciated that due to dynamic network auxiliary information be to time-sensitive, thus when serving cell and dominant interference it is small
When being connected there are non-ideal backhaul between area, the transmission delay between serving cell and dominant interference cell will assist dynamic network
The validity of information adversely affects.Therefore, when being connected there are non-ideal backhaul between serving cell and dominant interference cell,
UE has to obtain dynamic network auxiliary information from dominant interference cell itself.However, between serving cell and dominant interference cell
When being connected there are ideal backhaul（For example, when serving cell and dominant interference cell by the eNB of co-sited point come when managing）, UE from its take
Cell of being engaged in obtains dynamic network auxiliary information, can enjoy the benefit of ideal backhaul connection.
Fig. 4 shows the device 400 for assist acquisition dynamic network auxiliary information according to embodiment of the present invention
Block diagram.The device 400 can for example be implemented in base station, NodeB, eNodeB, relay station or communication system any other is appropriate
In equipment.
The device 400 includes：Determination unit 401 is configured to determine the serving cell about user equipment and the clothes
The information of backhaul connection state between the neighboring community for cell of being engaged in；And unit 402 is provided, it is configured to set to the user
The standby information provided about the backhaul connection state.
Fig. 5 shows the block diagram of the device 500 for obtaining dynamic network auxiliary information according to embodiment of the present invention.
The device 500 can for example be implemented on UE, mobile terminal（MT）, subscriber station（SS）, portable subscriber station（PSS）, movement station（MS）
Or access terminal（AT）In.
The device 500 includes：Receiving unit 501 is configured to receive from serving BS small about the service of user equipment
The information of backhaul connection state between area and the neighboring community of the serving cell；First determination unit 502, be configured to from
The dominant interference cell in main interference source is determined as in the neighboring community；And second determination unit 503, it is configured to base
In the information about the backhaul connection state, determines and obtained from the serving cell or the dominant interference cell for described
The dynamic network auxiliary information of dominant interference cell.
The reader of the application will also be understood that word " including（comprising）" or " including（comprise）" it is not excluded for it
His element or step, word " one（a）" or " one（an）" it is not excluded for multiple, such as computer system, processor or other
If the discrete component of integrated unit can meet the function for the equipment for drying mentioned in the claims.Arbitrary reference in claim
Label will not be construed as limiting relevant corresponding claims.Term " first ", " second ", " third ", etc. in specification or
In claim using when be introduced into distinguish similar element or step, and not necessarily description order or sequential.It will be understood that
Used term is interchangeable under appropriate environment and embodiments of the present invention can be according to the present invention in other sequences
Or in the directional operation different from the orientation for being described above or illustrating.
It is bright to those skilled in the art although the present invention is illustrated by reference to specific embodiment
Aobvious, the present invention is not limited to the details of embodiment described above, and the present invention can pass through various changes and modifications reality
Now without departing from the scope of the present invention.Current embodiment be therefore considered as in all fields it is illustrative and not restrictive
, the scope of the present invention be represented by claim rather than by the description of front indicate, into claim equivalent and
Therefore whole in range changes within the scope of the present invention.
It is realized it should be appreciated that any form can be used in each aspect of the present invention, including hardware, software, firmware or its is any
Combination.The element and component of the embodiment of the present invention in physics, functionally and logically aspect, can be used any suitable way reality
It is existing.Certainly, which can be used individual unit or IC, and multiple units or IC or the part as other functional units are realized.
Claims (18)
1. a kind of method for assisting obtaining dynamic network auxiliary information, including：
Determine the letter about the backhaul connection state between the serving cell and the neighboring community of the serving cell of user equipment
Breath；
The information about the backhaul connection state is provided to the user equipment；And
Dynamic signaling is sent to the user equipment, the dynamic signaling includes at least one of following：
Flag bit, the flag bit are used to indicate the user equipment from the serving cell or from the neighboring community
In dominant interference cell obtain for the dominant interference cell dynamic network auxiliary information, and
The identifier of one of the serving cell or the neighboring community, the identifier be used to indicate the user equipment from
Cell indicated by the identifier obtains the dynamic network auxiliary information for the dominant interference cell.
2. according to the method described in claim 1, wherein determining serving cell and the serving cell about user equipment
The information of backhaul connection state between neighboring community includes：
Build first community list, the first community list include among the neighboring community between the serving cell
The identifier of cell with ideal backhaul connection；And
Build second community list, the second community list include among the neighboring community between the serving cell
The identifier of cell with non-ideal backhaul connection.
3. method according to claim 1 or 2, wherein being provided to the user equipment about the backhaul connection state
Information includes the information broadcasted to the user equipment by broadcast signaling about the backhaul connection state.
4. method according to claim 1 or 2, wherein being provided to the user equipment about the backhaul connection state
Information includes the information provided to the user equipment by the signaling specific to user equipment about the backhaul connection state.
5. according to the method described in claim 4, the wherein described neighboring community includes adjacent with the serving cell all small
The subset in area, the subset are determined according to the information specific to the user equipment.
6. according to the method described in claim 1, further comprising：
In response to the variation of the interference environment for the user equipment, the serving cell about user equipment and institute are redefined
State the information of the backhaul connection state between the neighboring community of serving cell；And
The information about the backhaul connection state redefined is provided to the user equipment.
7. a kind of method for obtaining dynamic network auxiliary information, including：
Connect from the backhaul between the serving cell and the neighboring community of the serving cell that serving BS is received about user equipment
Connect the information of situation；
The dominant interference cell in main interference source is determined as from the neighboring community；And
Based on the information about the backhaul connection state, determines from the serving cell or the dominant interference cell and obtain needle
To the dynamic network auxiliary information of the dominant interference cell.
8. according to the method described in claim 7, the information wherein about the backhaul connection state includes：
Third cell list, the third cell list include having between the serving cell among the neighboring community
The identifier of the cell of ideal backhaul connection；And
4th cell list, the 4th cell list include having between the serving cell among the neighboring community
The identifier of the cell of non-ideal backhaul connection.
9. according to the method described in claim 8, wherein being determined from the clothes based on the information about the backhaul connection state
Business cell or dominant interference cell acquisition include for the dynamic network auxiliary information of the dominant interference cell：
The identifier that the dominant interference cell is searched in the third cell list and/or the 4th cell list, with true
Fixed is ideal backhaul connection or non-ideal backhaul connection between the dominant interference cell and the serving cell；And
In response to being ideal backhaul connection between the determination dominant interference cell and the serving cell, determine small from the service
Area obtains the dynamic network auxiliary information for the dominant interference cell.
10. a kind of device for assisting obtaining dynamic network auxiliary information, including：
Determination unit is configured to determine between serving cell and the neighboring community of the serving cell about user equipment
The information of backhaul connection state；And
Unit is provided, is configured to provide the letter about the backhaul connection state to the user equipment；And
Transmission unit is configured to send dynamic signaling to the user equipment, and the dynamic signaling includes following at least one
：
Flag bit, the flag bit are used to indicate the user equipment from the serving cell or from the neighboring community
In dominant interference cell obtain for the dominant interference cell dynamic network auxiliary information, and
The identifier of one of the serving cell or the neighboring community, the identifier be used to indicate the user equipment from
Cell indicated by the identifier obtains the dynamic network auxiliary information for the dominant interference cell.
11. device according to claim 10, wherein the determination unit is further configured to：
Build first community list, the first community list include among the neighboring community between the serving cell
The identifier of cell with ideal backhaul connection；And
Build second community list, the second community list include among the neighboring community between the serving cell
The identifier of cell with non-ideal backhaul connection.
12. the device according to claim 10 or 11, wherein the offer unit is further configured to believe by broadcasting
Enable the information broadcasted to the user equipment about the backhaul connection state.
13. the device according to claim 10 or 11, wherein the offer unit be further configured to by specific to
The signaling of user equipment provides the information about the backhaul connection state to the user equipment.
14. device according to claim 13, wherein the neighboring community includes adjacent with the serving cell all
The subset of cell, the subset are determined according to the information specific to the user equipment.
15. device according to claim 10, wherein：
The determination unit is further configured to the variation of the interference environment for the user equipment, redefines
Information about the backhaul connection state between the serving cell and the neighboring community of the serving cell of user equipment；And
What the offer unit was further configured to be redefined to user equipment offer connects about the backhaul
The information of situation.
16. a kind of device for obtaining dynamic network auxiliary information, including：
Receiving unit, be configured to from serving BS receive about user equipment serving cell and the serving cell it is adjacent
The information of backhaul connection state between cell；
First determination unit is configured to be determined as the dominant interference cell in main interference source from the neighboring community；With
And
Second determination unit, is configured to based on the information about the backhaul connection state, determine from the serving cell or
Dominant interference cell described in person obtains the dynamic network auxiliary information for the dominant interference cell.
17. device according to claim 16, wherein the information about the backhaul connection state includes：
Third cell list, the third cell list include having between the serving cell among the neighboring community
The identifier of the cell of ideal backhaul connection；And
4th cell list, the 4th cell list include having between the serving cell among the neighboring community
The identifier of the cell of non-ideal backhaul connection.
18. device according to claim 17, wherein second determination unit is further configured to：
The identifier that the dominant interference cell is searched in the third cell list and/or the 4th cell list, with true
Fixed is ideal backhaul connection or non-ideal backhaul connection between the dominant interference cell and the serving cell；And
In response to being ideal backhaul connection between the determination dominant interference cell and the serving cell, determine small from the service
Area obtains the dynamic network auxiliary information for the dominant interference cell.
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| US11317332B2 (en) * | 2015-11-12 | 2022-04-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for cell selection |
| WO2022032634A1 (en) * | 2020-08-14 | 2022-02-17 | Nokia Shanghai Bell Co., Ltd. | Mechanism for transmission detection |
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|---|---|---|---|---|
| CN101953225A (en) * | 2008-02-22 | 2011-01-19 | 高通股份有限公司 | The method and apparatus that the transmission of base station is controlled |
| WO2012104181A1 (en) * | 2011-02-04 | 2012-08-09 | Telefonaktiebolaget L M Ericsson (Publ) | A method and apparatus for reducing intercell interference |
| CN102783233A (en) * | 2010-01-18 | 2012-11-14 | 高通股份有限公司 | Methods and apparatus for facilitating inter-cell interference coordination via over the air load indicator and relative narrowband transmit power |
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| US8451773B2 (en) * | 2008-11-12 | 2013-05-28 | At&T Intellectual Property I, Lp | Dynamic lightweight remote management of hybrid femtocell gateways |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101953225A (en) * | 2008-02-22 | 2011-01-19 | 高通股份有限公司 | The method and apparatus that the transmission of base station is controlled |
| CN102783233A (en) * | 2010-01-18 | 2012-11-14 | 高通股份有限公司 | Methods and apparatus for facilitating inter-cell interference coordination via over the air load indicator and relative narrowband transmit power |
| WO2012104181A1 (en) * | 2011-02-04 | 2012-08-09 | Telefonaktiebolaget L M Ericsson (Publ) | A method and apparatus for reducing intercell interference |
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Address after: Pudong New Area, Pudong Jinqiao Ning Bridge Road, No. 388, No. Applicant after: Shanghai NOKIA Baer Limited by Share Ltd Applicant after: Alcatel Optical Networks Israe Address before: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Applicant before: Shanghai Alcatel-Lucent Co., Ltd. Applicant before: Alcatel Optical Networks Israe |
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