CN102223648B - Method and device for acquiring configuration parameters of antenna port of base station - Google Patents
Method and device for acquiring configuration parameters of antenna port of base station Download PDFInfo
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- CN102223648B CN102223648B CN201010146354.9A CN201010146354A CN102223648B CN 102223648 B CN102223648 B CN 102223648B CN 201010146354 A CN201010146354 A CN 201010146354A CN 102223648 B CN102223648 B CN 102223648B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
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- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
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Abstract
The invention discloses a method for acquiring configuration parameters of an antenna port of a base station. When the configuration parameters of the antenna port of the base station need to be changed, the base station transmits the changed configuration parameters of the antenna port to a relay node through dedicated signalling, thus the relay node can timely apply the changed configuration parameters of the antenna port when the antenna port configuration is changed, and completes data signal transmission with the base station through the antenna port the configuration of which is changed. The invention also discloses a device for acquiring configuration parameters of the antenna port of the base station; and by utilizing the method and device provided by the invention, the problem that the relay node can not acquire the change of the antenna port configuration of the base station in the prior art is solved, thus the relay node can keep connection with a network side at real time, thereby improving the efficiency and the success rate of the data signal transmission between the relay node and the base station.
Description
Technical field
The present invention relates to long evolving system middle port configuring technical, more particularly, to a kind of antenna for base station port that obtains configures
The method and device of parameter.
Background technology
In order to meet the demand that growing big bandwidth high-speed mobile accesses, third generation partner program (3GPP,
Third Generation Partnership Projects) release senior long term evolution (LTE-Advanced, Long-Term
Evolution advance) standard, LTE-Advanced is for Long Term Evolution (LTE, Long-Term Evolution) system
Evolution remain the core of LTE, using a series of technology, frequency domain, spatial domain are expanded on this basis, to reach raising
The purposes such as the availability of frequency spectrum, increase power system capacity.
Wireless relay (Relay) technology is one of technology in LTE-Advanced it is intended to the coverage of Extended Cell,
Reduce the dead angle area in communication, balanced load, the business of transfer hot zones, save user equipment (UE, User
Equipment) the i.e. transmission power of terminal.As shown in figure 1, increasing and UE between at original base station (Donor-eNB)
Via node (RN, Relay-Node), these newly-increased RN and Donor-eNB are wirelessly connected.Wherein, Donor-eNB and
Radio Link between RN is referred to as back haul link (backhaul link), and the Radio Link between RN and UE is referred to as access link
(accesslink).Downlink data first reaches Donor-eNB, is then passed to RN, and RN transmits to UE again, and upstream data is then anti-
It.
When access link shares same frequency range with back haul link, RN mono- aspect needs to keep being connected with Donor-eNB,
Complete the upstream data interaction in back haul link and downlink data interaction, on the other hand need to keep being connected with UE again, complete to connect
Upstream data interaction in incoming link and downlink data interaction, this will lead to the conflict of RN data processing.For solving this problem,
The special downlink subframes in return link that introduces configures pseudo- Multicast Broadcast Single Frequency Network (Fake MBSFN, Fake Multicast
Broadcast Single FrequencyNetwork), in Fake MBSFN sub-frame, RN and Donor-eNB carries out data friendship
Mutually, but not to the UE sending signal in access link.
In LTE system, Donor-eNB adopts multiple antenna transmission technique, can have single antenna configuration such as Antenna
Port 0, two-antenna configuration such as Antenna Port 0 and Antenna Port 1, four antenna configurations such as Antenna Port
0th, Antenna Port 1, Antenna Port 2 and Antenna Port 3 or other antenna configuration.Using different skies
Line configures, different cell specific reference signal (the Cell-specific reference of different antenna port transmission
Signals) and different transmission signal, the UE being in connection status needs to measure the specific reference signal of cell and/or reports
Measurement result, also needs to receive the signal of different antennae transmission simultaneously.In LTE system, UE or RN is typically sent out by decoding cell
The Master Information Block (MIB, Master Information Block) sending obtains antenna configuration parameters such as antenna port number, and MIB is originally
Body does not comprise antenna configuration parameters, but MIB needs to be scrambled with antenna port configuration parameter, and so, UE or RN can pass through blind check
Survey and obtain the antenna port configuration parameter accessing cell from MIB.
After RN accesses Donor-eNB jurisdiction district and is in normal operating conditions, only connect in downlink subframes in return link
Receive the signal that Donor-eNB sends, because MIB is only in the specific sub-frame scheduling of Donor-eNB, therefore very possible RN cannot connect
Receive the MIB of Donor-eNB transmission.For example, as shown in Fig. 2 subframe #3 and subframe #8 are downlink subframes in return link, and sub
Frame #0 is used for dispatching MIB, and RN can only receive, in subframe #3 and subframe #8, the signal that Donor-eNB sends, and therefore, RN does not receive
The MIB that Donor-eNB sends, thus the antenna port configuration parameter of Donor-eNB cannot be known it is impossible to know Donor-eNB
Antenna port configuration change, thus the multi-antenna transmission signal after change can not effectively be received.Due to antenna port configuration
Directly affect the mode of signal transmission, RN knows the antenna port configuration parameter of Donor-eNB not in time it is impossible to keep and net
The connection of network side, and then cannot be its UE service under covering.
In addition, in existing agreement, only when current area is switched to Target cell, network side be base station and UE it
Between interaction wireless heterogeneous networks (RRC, Radio Resource Control) signaling just comprise to carry Target cell antenna
The mobile control information (mobility Control Info) of port configuration parameter, when not switching, network side will not lead to
Know its antenna port configuration parameter of Serving cell of being accessed of UE or RN.When RN can not receive the MIB that Donor-eNB is sent
When, need to solve the problems, such as that RN obtains the antenna port configuration parameter of the Donor-eNB cell that it is accessed.
Content of the invention
In view of this, present invention is primarily targeted at provide a kind of obtain configuration parameters of antenna port of base station method and
Device, to solve the change that via node in prior art cannot know the configuration of antenna for base station port, thus can not effectively receive
The problem of the multi-antenna transmission signal after change.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
The invention provides a kind of method obtaining configuration parameters of antenna port of base station, methods described includes：In base station
When antenna port configuration parameter will change, base station sends, to via node, the dedicated signaling carrying antenna port configuration parameter,
Described via node obtains the antenna port configuration parameter after base station changes from dedicated signaling.
In such scheme, the media that described dedicated signaling specially carries described configuration parameters of antenna port of base station connect
Enter key-course control signaling or radio resource control layer signaling.
In such scheme, methods described also includes：Base station judges whether described via node can receive itself
Master Information Block, if it is, base station does not send described dedicated signaling to described via node, described via node passes through to parse institute
The Master Information Block receiving, obtains the antenna port configuration parameter after changing；Otherwise, the antenna port configuration parameter in base station will
During change, base station sends described dedicated signaling to described via node.
In such scheme, described base station judges whether described via node can receive the mistake of the Master Information Block of itself
Journey, specially：Base station is passed through to check descending scheduling subframe and the Master Information Block scheduling subframe of described via node, judge described in
Whether the node that continues can receive the Master Information Block of itself.
In such scheme, after the configuration parameters of antenna port of base station after via node obtains described change, described
Method also includes：Described via node applies described configuration parameters of antenna port of base station after changing, after being configured by change
Antenna port is carried out data transmission with base station.
In such scheme, described application is described change after configuration parameters of antenna port of base station, specially：According to aobvious
Show instruction or predefined temporal information, in the specified time, via node application is described change after antenna for base station port
Configuration parameter.
In such scheme, described explicit instruction is specially：Base station is in the described dedicated signaling being sent to via node
Carry described temporal information.
In such scheme, the temporal information of described explicit instruction is system specified frame number or system specified frame number
With subframe numbers or time period of specifying.
In such scheme, described predefined temporal information includes predefined time period or next system information
The modification initial time in cycle or n-th system message the modification cycle initial time, wherein N is more than or equal to 1
Integer.
In such scheme, described antenna port configuration parameter includes antenna port number and/or antenna end after change
Mouth composition parameter and/or the antenna port number being changed and/or the antenna port composition parameter being changed.
Present invention also offers a kind of device obtaining configuration parameters of antenna port of base station, described device includes：Detection is single
Unit, transmitting element, wherein：Detector unit, for when configuration parameters of antenna port of base station is detected and will change, starting described sending out
Send unit；Transmitting element, for sending, to via node, the dedicated signaling carrying the antenna port configuration parameter after change, makes
Obtain described via node and obtain the antenna port configuration parameter after changing.
In such scheme, described device also includes：Verification unit, wherein：Verification unit, for judging described relaying section
Whether point can receive the Master Information Block of base station, judged result for no when, start described detector unit, otherwise, do not start
Described detector unit.
In such scheme, described device also includes：Receiving unit, for receiving the described special of described transmitting element transmission
With signaling, or the Master Information Block receiving described base station.
In such scheme, described device also includes：Resolution unit, for the base station that receives described receiving unit
Master Information Block is parsed, and obtains the antenna port configuration parameter of the base station after described change.
The method and device of the acquisition configuration parameters of antenna port of base station of the present invention, in the antenna port configuration parameter of base station
When to be changed, base station the antenna port configuration parameter after altered self is sent to by via node by dedicated signaling so that in
The antenna port configuration parameter of the base station after changing can be applied continue node in antenna port configuration variation in time, by changing
Antenna port after configuration completes the data signal transmission and base station between.By the present invention, relaying in prior art can be solved
Node cannot know the problem of antenna for base station port configuration variation so that via node can keep the connection with network side, from
And improve the efficiency of data signal transmission and success rate between via node and base station.
Brief description
Fig. 1 is the structural representation of the network system under LTE/SAE framework in prior art；
Fig. 2 is the schematic diagram of the descending sub frame scheduling of via node；
Fig. 3 obtains the composition structural representation of the device of configuration parameters of antenna port of base station for the present invention；
Fig. 4 is the schematic diagram of the via node descending sub frame scheduling of the embodiment of the present invention one；
Fig. 5 is the schematic flow sheet obtaining configuration parameters of antenna port of base station in the embodiment of the present invention one；
Fig. 6 is the schematic diagram of the via node descending sub frame scheduling of the embodiment of the present invention two；
Fig. 7 is the schematic flow sheet obtaining configuration parameters of antenna port of base station in the embodiment of the present invention two.
Specific embodiment
The basic thought of the present invention is：The configuration parameter accessing the antenna port of Donor-eNB jurisdiction district in RN will change
During change, RN needs to reacquire the antenna port configuration parameter of Donor-eNB, and in the present invention, Donor-eNB first determines whether that RN is
The no Master Information Block (MIB, Master In formation Block) that can receive this Donor-eNB transmission, if it is,
Then RN can obtain the antenna port configuration parameter after Donor-eNB changes, otherwise, Donor- by parsing the MIB receiving
ENB sends the antenna port configuration parameter after altered self by dedicated signaling to RN, and RN receives this dedicated signaling, obtains antenna
Port configuration parameter, the antenna port parameter after Donor-eNB being applied to change in order to RN, the antenna end after changing
Mouth carries out the transmission of data-signal with Donor-eNB and carries out measurement of cell specific reference signal etc..
The method that the present invention obtains Donor-eNB antenna port configuration parameter, specially：Antenna end in Donor-eNB
When mouth configuration parameter will change, Donor-eNB sends, to RN, the dedicated signaling carrying the antenna port configuration parameter after change,
RN receives this dedicated signaling to obtain the antenna port configuration parameter after Donor-eNB changes.
Here, antenna port configuration parameter can comprise the sky that Donor-eNB is adopted after changing antenna port configuration
Line port number and/or the antenna port composition parameter being adopted and/or the antenna port as increase or deletion being changed
Number and/or the antenna port composition parameter being changed.
Here, described dedicated signaling can control for medium education (MAC, Media Access Control) layer
Signaling or wireless heterogeneous networks (RRC, Radio Resource Control) layer signaling.
Wherein, methods described also includes：Donor-eNB judges whether described RN can receive the MIB of itself, if
It is that then Donor-eNB does not send described dedicated signaling to described RN, described RN passes through the received MIB of parsing, obtains
Antenna port configuration parameter after Donor-eNB change；Otherwise, when the antenna port configuration parameter of Donor-eNB will change,
Donor-eNB sends described dedicated signaling to described RN.
Here, by the descending scheduling subframe checking described RN, Donor-eNB judges that with MIB scheduling subframe described RN is
The no MIB that can receive itself.If comprising MIB scheduling subframe in the descending scheduling subframe of described RN, RN can receive
To the MIB of Donor-eNB, otherwise, RN does not receive the MIB of Donor-eNB.
Wherein, after the configuration parameters of antenna port of base station after RN obtains described change, methods described also includes：Described
Configuration parameters of antenna port of base station after the described change of RN application, is entered with Donor-eNB by the antenna port changing after configuring
Row data transfer.
Here, the configuration parameters of antenna port of base station after the described change of described application, is specifically as follows：Refer to according to display
Temporal information that show or predefined, the configuration parameters of antenna port of base station in the specified time, after the described change of RN application.
Here, the mode of described explicit instruction, specially：Donor-eNB is being sent to the described special letter of via node
Described temporal information is carried so that RN is after the antenna port configuration parameter after specified time application change, by joining in order
Put the antenna port after change and receive data-signal and the measurement specific reference signal of cell that described Donor-eNB sends.
Wherein, the temporal information of described explicit instruction be system specified frame number (SFN, System FrameNumber),
Or the SFN that specifies and subframe numbers or the time period specified.
Wherein, described temporal information can also adopt predefined mode, and described predefined temporal information includes pre-
The modification cycle of the initial time in modification cycle of the time period of definition or next system information or n-th system message
Initial time, wherein N are the integer more than or equal to 1.
In order to realize the said method of the present invention, present invention also offers a kind of obtain the configuration of Donor-eNB antenna port
The device of parameter, as shown in figure 3, this device mainly includes：Described device includes：Detector unit 31, transmitting element 32, wherein：
Detector unit 31, during for changing in antenna port configuration parameter Donor-eNB is detected, starts described sending out
Send unit；
Transmitting element 32, for RN send carry the antenna port configuration parameter after change dedicated signaling so that
Described RN is obtained in that the antenna port configuration parameter after change.
Wherein, described device also includes：Verification unit 33, this verification unit is used for judging whether described RN can receive
The MIB of Donor-eNB, the result judging as no when, start described transmitting element 32, otherwise, do not start described transmitting element
32.
Specifically, described verification unit 33 judges whether described RN can receive the MIB of Donor-eNB, if it is not, then
Start described detector unit 31, detector unit 31 is when antenna port configuration parameter Donor-eNB is detected will change, then opens
Dynamic transmitting element 32 sends, to described RN, the dedicated signaling carrying the antenna port configuration parameter after change, otherwise, does not start
Described detector unit 31.
In addition, described device can also include：Receiving unit 34, for receiving the described special of described transmitting element 31 transmission
With signaling, or the MIB receiving described Donor-eNB.
Specifically, the MIB of Donor-eNB is sent by the part that in Donor-eNB, other have sending function, or also may be used
To be sent by transmitting element 32.
Described device can also include：Resolution unit 35, for the Donor-eNB's that receives described receiving unit 34
MIB is parsed, and obtains the antenna port configuration parameter of the base station after described change.
In practical application, detector unit 31 in said apparatus, verification unit 33 and transmitting element 32 all can be arranged
In Donor-eNB side, complete the transmission of the antenna port configuration parameter after Donor-eNB changes, and receiving unit 34 and parsing
Unit 35 can be arranged at RN side, completes the process that RN obtains the antenna port configuration parameter of Donor-eNB after changing.
Embodiment one
RN after an initial power up, searches Donor-eNB jurisdiction district Cell 1, reads cell Cell_ in Donor-eNB
1 system message, obtains MIB, SIB1, SIB2 etc. from this system message, then the MIB of acquisition is decoded, acquisition comprises
Cell Cell_1 comprises the antenna port configuration parameter having adopted the information such as the number of antenna port, and RN is according to the cell obtaining
The message such as the antenna port configuration parameter of Cell_1, initiate RRC to Donor-eNB and connect, set up signaling bear with Donor-eNB
Data carries, and obtains including RN descending sub frame configuration parameter such as Fake MBSFN sub-frame configuration parameter, RN jurisdiction district ginseng
The parameter configuration of number etc., the normal operating conditions of RN entrance afterwards, in normal operating conditions, RN is merely able in Fake MBSFN sub-frame
Receive the downstream signal that Donor-eNB sends.
In the present embodiment, it is M with reference to, shown in Fig. 4, cell Cell_1 is identical with the SFN of RN jurisdiction district numbering, and should
The subframe alignment comprising in SFN, wherein, M is between 0～1023, includes 0 and 1023 arbitrary integer.In Fake MBSFN
Arrange in frame configuration parameter, subframe #03 and subframe #08 are used for the descending scheduling to RN for the Donor-eNB.According to existing association
View, subframe #00 of cell Cell_1 is used for dispatching MIB.
When the antenna port configuration parameter of cell Cell_1 will change, RN needs to obtain cell Cell_1 after changing
Antenna port configuration parameter, so as to continuing to the downlink data signal of Donor-eNB transmission, with reference to shown in Fig. 5, tool
Body flow process is as follows：
Step 501-502：Donor-eNB passes through to check the descending scheduling subframe of RN and MIB scheduling subframe, whether judges RN
The MIB of itself can be received, if it is, continuing step 502, RN passes through the received MIB of parsing, obtains after changing
The antenna port configuration parameter of cell Cell_1 simultaneously continues step 505-506, otherwise, continues step 503；
Here, if the descending scheduling subframe of RN comprises MIB scheduling subframe, RN can receive MIB, and otherwise, RN is not
MIB can be received.
Therefore, in the present embodiment, the result that step 501 judges is no.
Step 503：Donor-eNB sends the antenna port configuration parameter carrying cell Cell_1 after change to RN
Dedicated signaling；
Here, dedicated signaling can be MAC layer control signaling or rrc layer signaling；
In practical application, described dedicated signaling can be that the RRC connection in rrc layer signaling reconfigures (RRCConnection
) or RRC connection reconstruction (RRC ConnectionReestablishment) or RRC parameter are joined Reconfiguration
The signaling such as put.Specifically, can increase for carrying antenna port configuration parameter in the rrc layer signaling as dedicated signaling
Cell, such as can connect dedicated radio resources configuration (radioResourceConfigDedicated) in reconfiguring in RRC
Increase the cell of antenna port configuration parameter in information.
For example, Donor-eNB sends RRC connection and reconfigures signaling to RN, and this signaling comprises cell Cell_1 after changing
Antenna port configuration parameter, wherein antenna port configuration parameter can comprise change after cell Cell_1 antenna port number
Mesh and/or complete antenna port composition parameter are it is also possible to comprise changed antenna port number and/or the sky being changed
Line end mouth composition parameter.
For example, before the antenna port configuration variation of cell Cell_1, its antenna port parameter for antenna port number is
1, that is, adopt antenna port 0, after change, the antenna port parameter of cell Cell_1 is 2 for antenna port number, that is, adopt sky
Line end mouth 0 and antenna port 1, then Donor-eNB to the content of RN institute's transmission antenna port configuration parameter can be：Antenna port
Number be 2 and/or using antenna port 0 and antenna port 1 or：Antenna port number increase by 1 and/or increase should
With antenna port 1.
Described dedicated signaling can also be MAC layer control signaling.In practical application, can be by extending existing MAC
Layer control signaling form is realizing.Specifically, can be used for representing antenna port configuration parameter defined in MAC layer control signaling
Newer field, or can also define antenna port configuration parameter is carried by existing spare field, the antenna end that will send
In newer field defined in mouth configuration parameter write or spare field, RN is sent to by MAC layer control signaling.
Step 504：RN receives the dedicated signaling that Donor-eNB is sent, and obtains the antenna of cell Cell_1 after changing
Port configuration parameter；
Step 505：After RN obtains the antenna port configuration parameter of cell Cell_1 after changing, return to Donor-eNB
Response message；
Specifically, RN to the response message that Donor-eNB returns can be RRC connect reconfigure complete or RRC connect weight
Build and complete or the signaling such as RRC parameter configuration completes.
Step 506：The antenna port configuration parameter of cell Cell_1 after RN application change, by antenna port 0 and sky
Line end mouth 1 and Donor-eNB carry out data signal transmission and the measurement specific reference signal of cell.
Specifically, RN adopts existing MIMO technique (MIMO, Multiple Input
The antenna port configuration parameter of cell Cell_1 after MultipleOutput) technology application changes, receives base station and passes through to change
Configuration antenna port send data and complete measurement of the specific reference signal of cell etc..
For example, the antenna port number of cell Cell_1 after change is 2, adopts antenna port 0 and antenna port 1, then
After the antenna port configuration parameter of cell Cell_1 after receiving change for the RN, reception antenna port 0 and antenna port 1 send
Data-signal, and measure the measurement of the specific reference signal of cell of antenna port 0 and antenna port 1.It should be noted that
The time-frequency location of the specific reference signal of cell of different antennae port transmission is specified by agreement.
In practical application, the antenna port configuration of cell Cell_1 after the change receiving Donor-eNB transmission for the RN
After parameter, this antenna port configuration parameter can be applied immediately, or can also be after RN returns response message to Donor-eNB
Reapply this antenna port configuration parameter.In the present embodiment, step 506 can also be carried out before step 505.In addition, step
505 is optional step it is also possible to need to save according to practical application.
Embodiment two
In the present embodiment, with reference to shown in Fig. 6, it is M that the SFN of cell Cell_1 numbers, and it is N that the SFN of RN jurisdiction district numbers,
Both SFN numbering is different but sub-frame boundary alignment therein, wherein, M and N be between 0～1023, include 0 and 1023 any
Two different integers.Subframe #02 and subframe #07 are used for the descending scheduling to RN for the Donor-eNB.
RN accesses Donor-eNB jurisdiction district Cell_1, and when being in normal operating conditions, the antenna end of cell Cell_1
Mouth number is 1, and the antenna port applied is antenna port 0.For increasing the business throughput of cell Cell_1, cell Cell_1 needs
The quantity of antenna port to be increased, now, the antenna port configuration of cell Cell_1 will change, by the sky of cell Cell_1
Line port number increases to 4, and the antenna port applied is changed to antenna port 0, antenna port 1, antenna port 2, antenna
Port 3.Donor-eNB needs the antenna port configuration parameter of cell Cell_1 after notice RN change, with reference to shown in Fig. 7, has
Body flow process is as follows：
Step 701-702：Identical with step 501-502；
Step 703：Donor-eNB sends the antenna port configuration parameter carrying cell Cell_1 after change to RN
Dedicated signaling, also comprises the temporal information that RN applies this antenna port configuration parameter in this dedicated signaling；
Wherein, the temporal information that dedicated signaling comprises can be absolute temporal information or letter of relative time
Breath.Wherein, absolute temporal information may refer to fixed SFN, or the SFN that specifies and subframe, for example, it is possible to specify little
When the SFN of area Cell_1 or RN jurisdiction district is 20, the antenna port configuration parameter of cell Cell_1 after RN application change, or
Person, it is possible to specify when SFN is 30 and subframe is 05, the antenna port configuration parameter of cell Cell_1 after RN application change；
Relative time information can be a time period, RN after this time period receiving dedicated signaling, after reapplying change
The antenna port configuration of cell Cell_1, for example, when relative time is set to 20 milliseconds, RN is then receiving described dedicated signaling
20 milliseconds afterwards, application change after cell Cell_1 antenna port configuration parameter.
Step 704-705：Identical with step 504-505；
Step 706：RN according to described temporal information, after the time application that Donor-eNB specifies changes cell
The antenna port configuration parameter of Cell_1.
Specifically, in the present embodiment, RN receives the data-signal that 4 antenna ports of Donor-eNB send, measurement respectively
The specific reference signal of cell on 4 antenna ports.
Embodiment three
In the present embodiment, as shown in Fig. 2 it is M that the SFN of cell Cell_1 numbers, it is N that the SFN of RN jurisdiction district numbers, and
Subframe in both SFN does not have alignment relation, and wherein, M and N be between 0～1023, it is different with 1023 any two to include 0
Integer, subframe #03 and subframe #08 are used for the descending scheduling to RN for the Donor-eNB.
When the antenna port configuration of cell Cell_1 is to be changed, Donor-eNB needs the cell after notifying RN to change
The process of the antenna port configuration parameter of Cell_1, idiographic flow is essentially identical with embodiment two, except that, the present embodiment
In, what the temporal information of described RN application antenna port configuration parameter was not comprised in that Donor-eNB sent carries antenna
In the dedicated signaling of port configuration parameter, but arranged using predefined mode.
Specifically, the predefined of temporal information can be completed through consultation by between RN and Donor-eNB, or in RN and
It is sent to other side after arranging in any one in both Donor-eNB, or can also be specified by agreement.
Wherein, SFN that the temporal information that predefined temporal information can be absolute is such as specified etc. or relative
Temporal information, such as RN receives the time period after antenna port configuration parameter, can also be cell Cell_1 or RN jurisdiction district
The initial time in next system information modification cycle or n-th system message the modification cycle initial time, wherein N is
Integer more than or equal to 1.
The system message of other side itself in the present embodiment, can be notified between RN and Donor-eNB by dedicated signaling
The modification cycle is it is also possible to by consistency operation and safeguard that (O＆M, Operation ＆Maintenance) server knows other side's
The configuration parameters such as the modification cycle of system message, SFN.
The above, only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention, all
Any modification, equivalent and improvement of being made within the spirit and principles in the present invention etc., should be included in the protection of the present invention
Within the scope of.
Claims (12)
1. a kind of method obtaining configuration parameters of antenna port of base station is it is characterised in that methods described includes：
Base station judges whether via node can receive the Master Information Block of itself, if it is, base station is not to described relaying section
Point sends dedicated signaling, and described via node passes through the received Master Information Block of parsing, obtains the antenna port after changing and joins
Put parameter；Otherwise, when the antenna port configuration parameter of base station will change, base station sends to via node and carries antenna port
The dedicated signaling of configuration parameter, described via node obtains the antenna port configuration parameter after base station changes from dedicated signaling.
2. according to claim 1 obtain configuration parameters of antenna port of base station method it is characterised in that
Described dedicated signaling specially carry described configuration parameters of antenna port of base station media access control layer control signaling,
Or radio resource control layer signaling.
3. the method obtaining configuration parameters of antenna port of base station according to claim 1 is it is characterised in that described base station is sentenced
Whether the described via node that breaks can receive the process of the Master Information Block of itself, specially：
Base station is passed through to check the descending scheduling subframe of described via node and Master Information Block scheduling subframe, judges described via node
Whether the Master Information Block of itself can be received.
4. the method obtaining configuration parameters of antenna port of base station according to claim 1 is it is characterised in that in via node
After obtaining the configuration parameters of antenna port of base station after described change, methods described also includes：
Described via node applies described configuration parameters of antenna port of base station after changing, by changing the antenna port after configuring
Carry out data transmission with base station.
5. the method obtaining configuration parameters of antenna port of base station according to claim 4 is it is characterised in that described application
Configuration parameters of antenna port of base station after described change, specially：Foundation explicit instruction or predefined temporal information,
The time specified, the configuration parameters of antenna port of base station after the described change of via node application.
6. the method obtaining configuration parameters of antenna port of base station according to claim 5 is it is characterised in that described explicit finger
Show specially：Base station carries described temporal information in the described dedicated signaling being sent to via node.
7. the method obtaining configuration parameters of antenna port of base station according to claim 6 is it is characterised in that described explicit finger
The temporal information shown is system specified frame number or system specified frame number and subframe numbers or the time period specified.
8. the method obtaining configuration parameters of antenna port of base station according to claim 5 is it is characterised in that described predefine
Temporal information include the initial time in modification cycle or the n-th system of predefined time period or next system information
The initial time in the modification cycle of message, wherein N is the integer more than or equal to 1.
9. the method obtaining configuration parameters of antenna port of base station according to claim 1 is it is characterised in that described antenna end
Mouth configuration parameter includes the antenna port number after change and/or antenna port composition parameter and/or the antenna end being changed
Mouth number and/or the antenna port composition parameter being changed.
10. a kind of device obtaining configuration parameters of antenna port of base station is it is characterised in that described device includes：Verification unit, inspection
Survey unit, transmitting element, wherein：
Described verification unit, for judging whether via node can receive the Master Information Block of base station, is no in judged result
When, start described detector unit, otherwise, do not start described detector unit；
Detector unit, for when configuration parameters of antenna port of base station is detected and will change, starting described transmitting element；
Transmitting element, for via node send carry the antenna port configuration parameter after change dedicated signaling so that
Described via node obtains the antenna port configuration parameter after changing.
11. devices obtaining configuration parameters of antenna port of base stations according to claim 10 are it is characterised in that described device
Also include：
Receiving unit, for receiving the described dedicated signaling that described transmitting element sends, or the main information receiving described base station
Block.
12. devices obtaining configuration parameters of antenna port of base stations according to claim 11 are it is characterised in that described device
Also include：
Resolution unit, the Master Information Block of the base station for receiving described receiving unit is parsed, after obtaining described change
Base station antenna port configuration parameter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010146354.9A CN102223648B (en) | 2010-04-13 | 2010-04-13 | Method and device for acquiring configuration parameters of antenna port of base station |
| PCT/CN2011/071177 WO2011127766A1 (en) | 2010-04-13 | 2011-02-22 | Method and device for obtaining configuration parameters of antenna ports of a base station |
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| CN201010146354.9A CN102223648B (en) | 2010-04-13 | 2010-04-13 | Method and device for acquiring configuration parameters of antenna port of base station |
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| CN102223648A CN102223648A (en) | 2011-10-19 |
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| CN101317344A (en) * | 2005-09-30 | 2008-12-03 | 松下电器产业株式会社 | Wireless communication system |
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| US7127257B2 (en) * | 2001-12-27 | 2006-10-24 | Qualcomm Incorporated | Use of mobile stations for determination of base station location parameters in a wireless mobile communication system |
| JP4422778B2 (en) * | 2006-04-27 | 2010-02-24 | 京セラ株式会社 | Wireless communication method, wireless communication apparatus, and wireless communication system |
| US20080064353A1 (en) * | 2006-09-07 | 2008-03-13 | Motorola, Inc. | Method and apparatus for base station directed selection of a multiple antenna configuration |
| CN101388696A (en) * | 2007-09-11 | 2009-03-18 | 中兴通讯股份有限公司 | Multi-antenna mode selection method in process of relay network switching process |
| CN101541063B (en) * | 2009-04-27 | 2014-02-05 | 中兴通讯股份有限公司 | Transmission method and device of downlink control signaling |
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| CN101317344A (en) * | 2005-09-30 | 2008-12-03 | 松下电器产业株式会社 | Wireless communication system |
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| Title |
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| Addition of antenna information and measurement bandwidth;Ericsson;《3GPP TSG-RAN WG3 Meeting #63bis R3-090822》;20090326;第2-8页，第15页 * |
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| WO2011127766A1 (en) | 2011-10-20 |
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