CN104811228B - A kind of method, radio node and the serving BS of structure cooperation set - Google Patents
A kind of method, radio node and the serving BS of structure cooperation set Download PDFInfo
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- CN104811228B CN104811228B CN201510129262.2A CN201510129262A CN104811228B CN 104811228 B CN104811228 B CN 104811228B CN 201510129262 A CN201510129262 A CN 201510129262A CN 104811228 B CN104811228 B CN 104811228B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/026—Co-operative diversity, e.g. using fixed or mobile stations as relays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Abstract
The embodiment of the invention discloses a kind of method, radio node and the serving BS of structure cooperation set, the method for the present invention includes:Radio node monitors the pilot tone for measurement that neighbor base stations are sent, and determines the Reference Signal Received Power RSRP values of each neighbor base stations;Radio node chooses the highest M base station of RSRP values and cooperation set is added according to the RSRP values of each neighbor base stations in the neighbor base stations that RSRP values are more than predetermined power thresholding;The information of cooperation set is notified target BS by radio node, to determine the cooperative base station set of radio node.The method of the present invention is adapted to structure cooperation set under small base station on/off scenes, and flexibility is high, and performance gain is big.
Description
Technical field
The present invention relates to communication technique field, more particularly to a kind of method, radio node and the service of structure cooperation set
Base station.
Background technology
In current wireless communication system, in order to further improve the capacity in network, the miniaturization of base station and net
The densification of network node has become inevitable choice.It is following even super-intensive network (Ultra Density occur
Network, UDN) deployment, such as up to a hundred small base stations are disposed in a macro station coverage area, in UDN networks, due to small
Base station number is numerous, and for some small base station, interference source is more, and multiple base stations, which carry out cooperation, to be effectively reduced in network
Interference level, and promote user data rate, the foundation for the set that cooperates is the first step that more base stations cooperate.
The current major way for establishing cooperation set divides the following two kinds:
One is the fixed set that cooperates to divide, i.e., certain base stations is divided into a fixed collaboration set in advance by network-side
It closes, although this fixation cooperates, the mode that set divides realizes relatively simple that flexibility is low, and performance gain is limited, can not
The case where adapting to the following small base station deployment random fluctuation;
Another kind is divided by the exclusive cooperation set of user equipment (User Equipment, UE), i.e., by UE according to public
Reference signal (Cell-specific Reference signal, CRS) measures serving cell and neighboring community's reference signal connects
Power (Reference Signal Received Power, RSRP) value is received, determines the exclusive cooperation set of this UE, and report
To serving BS.
Cooperation set dividing mode flexibility exclusive this UE is good, and performance gain is higher, but does not account for the following height
Small base station on/off scenes that may be present in density network, small base station on/off scenes, that is, small base station are dropped using on/off strategies
Low network interferences simultaneously reduce network energy consumption, specifically, when not having user or seldom portfolio in this cell, small base station is temporary
It closes, is in off states;When having compared with multiple access or larger portfolio, small base station is opened, and on is converted to by off states
State.In on/off scenes, node may be switched quickly, the on off state duration from several milliseconds to thousands of milliseconds not
Deng.From under on states small base station can all send that CRS is different, and when in off states, small base station can be with larger week per subframe
Period sends every (such as 20ms) and finds signal (Discovery Reference Signal, DRS), synchronous based on DRS possibility
Signal (Primary Synchronization Signal, PSS), secondary synchronizing signal (Secondary Synchronization
Signal, SSS), CRS or channel status reference signal (Channel-State Information Reference signal,
CSI-RS) etc.), if adjacent base station is in off states, UE may can not receive adjacent base in defined time of measuring
Stand CRS, leads to the RSRP that cannot obtain adjacent base station, to influence the foundation of cooperation set.
Above two cooperation set establishes mode, there is its application limitation, can not both meet the following small base station deployment
The foundation for the set that cooperates in the case of random fluctuation, and meet the foundation for the set that cooperates under small base station on/off scenes.
Invention content
An embodiment of the present invention provides a kind of method, radio node and the serving BSs of structure cooperation set, adapt to small
Structure cooperation set under the on/off scenes of base station, and flexibility is high, performance gain is big.
First aspect of the embodiment of the present invention provides a kind of method of structure cooperation set, including:
The radio node monitors the pilot signal for measurement that neighbor base stations are sent, and determines the reference of each neighbor base stations
Signal reception power RSRP values;
The radio node is more than the neighbours of predetermined power thresholding in RSRP values according to the RSRP values of each neighbor base stations
In base station, chooses the highest M base station of RSRP values and cooperation set is added;
The information of the cooperation set is notified target BS by the radio node, with the cooperation of the determination radio node
Collection of base stations.
Second aspect of the embodiment of the present invention provides a kind of method of structure cooperation set, including:
Serving BS receives the information for the cooperation set that user equipment (UE) is sent, and the information of the cooperation set includes each association
Make the base station identification information of base station;
The serving BS sends request to each cooperative base station and is added according to the base station identification information of each cooperative base station
The signaling for the set that cooperates so that each cooperative base station confirm cooperation set is added when transmission feeding back confirmation message to described
Serving BS;
The serving BS receives the feeding back confirmation message of cooperative base station, and institute is added in the base station of feeding back confirmation message
The cooperative base station list for stating UE, establishes cooperative base station set.
The third aspect of the embodiment of the present invention provides a kind of radio node, including:
First determination unit, the pilot signal for measurement for monitoring neighbor base stations transmission, determines each neighbor base stations
Reference Signal Received Power RSRP values;
Selection unit is more than the neighbour of predetermined power thresholding in RSRP values for the RSRP values according to each neighbor base stations
It occupies in base station, chooses the highest M base station of RSRP values and cooperation set is added;
Second determination unit, for the information of the cooperation set to be notified target BS, with the determination radio node
Cooperative base station set.
Fourth aspect of the embodiment of the present invention provides a kind of serving BS, including:
Receiving unit, the information of the cooperation set for receiving user equipment (UE) transmission, the packet of the cooperation set
Include the base station identification information of each cooperative base station;
Transmission unit sends request to each cooperative base station and adds for the base station identification information according to each cooperative base station
Enter the signaling of cooperation set, so that each cooperative base station is confirming that when that the cooperation set is added sends feeding back confirmation message to institute
State serving BS;
The receiving unit is additionally operable to receive the feeding back confirmation message of cooperative base station, and by the base station of feeding back confirmation message
The cooperative base station list of the UE is added, establishes cooperative base station set.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
Radio node monitors the pilot signal for measurement that neighbor base stations are sent in the embodiment of the present invention, determines each neighbours
The Reference Signal Received Power RSRP values of base station are more than predetermined power in RSRP values according to the RSRP values of each neighbor base stations
In the neighbor base stations of thresholding, chooses the highest M base station of RSRP values and cooperation set is added;By the information notice of the cooperation set
Target BS, with the cooperative base station set of the determination radio node.The embodiment of the present invention adapts to small base station on/off scenes
Lower structure cooperation set, and flexibility is high, performance gain is big.
Description of the drawings
Fig. 1 is one embodiment schematic diagram of the method for structure cooperation set in the embodiment of the present invention;
Fig. 2 is another embodiment schematic diagram of the method for structure cooperation set in the embodiment of the present invention;
Fig. 3 is another embodiment schematic diagram of the method for structure cooperation set in the embodiment of the present invention;
Fig. 4 is another embodiment schematic diagram of the method for structure cooperation set in the embodiment of the present invention;
Fig. 5 is another embodiment schematic diagram of the method for structure cooperation set in the embodiment of the present invention;
Fig. 6 is another embodiment schematic diagram of the method for structure cooperation set in the embodiment of the present invention;
Fig. 7 is one embodiment schematic diagram of radio node in the embodiment of the present invention;
Fig. 8 is one embodiment schematic diagram of serving BS in the embodiment of the present invention.
Specific implementation mode
An embodiment of the present invention provides a kind of method, radio node and the serving BSs of structure cooperation set, adapt to small
Structure cooperation set under the on/off scenes of base station, and flexibility is high, performance gain is big.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
The (if present)s such as term " first ", " second " in description and claims of this specification and above-mentioned attached drawing
It is for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that the number used in this way
According to can be interchanged in the appropriate case, so as to the embodiments described herein can in addition to the content for illustrating or describing herein with
Outer sequence is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover non-exclusive packet
Contain, for example, containing what the process of series of steps or unit, method, system, product or equipment were not necessarily limited to clearly to list
Those steps or unit, but may include not listing clearly or intrinsic for these processes, method, product or equipment
Other steps or unit.
Referring to Fig. 1, one embodiment of the method for structure cooperation set includes in the embodiment of the present invention:
101, radio node monitors the pilot signal for measurement that neighbor base stations are sent, and determines the reference of each neighbor base stations
Signal reception power RSRP values;
In the present embodiment, the pilot signal for measurement may include finding that signal DRS, radio node monitor neighbours
The DRS that base station is sent can be monitored based on the DRS configuration informations obtained in advance, and the DRS configuration informations include DRS signals
The offset information of type, the sending cycle of DRS signals, DRS signals;DRS may be primary synchronization signal PSS, secondary synchronizing signal
SSS, CRS or channel status reference signal CSI-RS etc., are not construed as limiting herein.
The pilot signal for measurement can also be that including CRS and DRS, i.e. radio node monitoring is in off states
The DRS that lower neighbor base stations are sent, and monitor the CRS for being in that neighbor base stations are sent under on states.
In the present embodiment, radio node can be the various wireless devices such as base station or user equipment, be not construed as limiting herein.
When the radio node is base station, the radio node obtains the node that on/off operations are supported in network
DRS configuration informations may include:
The base station directly acquires pre-defined DRS configuration informations, that is, directly acquires specified in standard agreement in on/
The DRS configuration informations used under off scenes, or (backhaul links refer to from access network or cell by backhaul link
Website (cellsite) arrives the connection of switching centre) node for supporting on/off to operate in network is obtained from center control nodes
DRS configuration informations, or by supporting the information interface of the base station of operation on/off operations obtains in network to support on/ with adjacent
The DRS configuration informations of the node of off operations.If for example, defining type/transmission week of several DRS signals in standard agreement
The combination of phase and biasing, then base station the mode of blind Detecting may be used and obtain the above DRS configuration informations.
When the radio node is user equipment (UE), the radio node obtains the section that on/off operations are supported in network
Point DRS configuration informations may include:
The UE directly acquires pre-defined DRS configuration informations, that is, directly acquires specified in standard agreement in on/
The DRS configuration informations used under off scenes, or by the notification information of the corresponding serving BSs of the UE, obtain and propped up in network
Hold the DRS configuration informations of the node of on/off operations.Such as the RRC signalings that are sent by serving BS of UE are obtained and are supported in network
The DRS configuration informations of the node of on/off operations.
102, radio node is more than the neighbours of predetermined power thresholding in RSRP values according to the RSRP values of each neighbor base stations
In base station, chooses the highest M base station of RSRP values and cooperation set is added;
103, the information of the cooperation set is notified target BS by radio node, with the cooperation of the determination radio node
Collection of base stations.
In the present embodiment, the information of the cooperation set may include the base station identification information of each cooperative base station and each cooperation
The load information of base station, is not construed as limiting herein;Radio node by it is described cooperation set information notify target BS, by with mesh
The interaction for marking base station, to determine the cooperation set of radio node.
Radio node monitors the pilot signal for measurement that neighbor base stations are sent in the embodiment of the present invention, determines each neighbours
The Reference Signal Received Power RSRP values of base station are more than predetermined power in RSRP values according to the RSRP values of each neighbor base stations
In the neighbor base stations of thresholding, chooses the highest M base station of RSRP values and cooperation set is added;By the information notice of the cooperation set
Target BS, with the cooperative base station set of the determination radio node.The embodiment of the present invention adapts to small base station on/off scenes
Lower structure cooperation set, and flexibility is high, performance gain is big.
In embodiment shown in FIG. 1, the pilot signal for measurement that neighbor base stations are sent is monitored in the radio node
Before, the radio node can first obtain the DRS configuration informations for the node that on/off operations are supported in network, referring to Fig. 2,
One embodiment of the method for structure cooperation set includes in the embodiment of the present invention:
201, radio node obtains the DRS configuration informations for the node that on/off operations are supported in network;
In the present embodiment, the DRS configuration informations include the type of DRS signals, the sending cycle of DRS signals, DRS signals
Offset information.
In the present embodiment, radio node can be the various wireless devices such as base station or user equipment, be not construed as limiting herein.
When the radio node is base station, the radio node obtains the node that on/off operations are supported in network
DRS configuration informations may include:
The base station directly acquires pre-defined DRS configuration informations, that is, directly acquires specified in standard agreement in on/
The DRS configuration informations used under off scenes, or obtained from center control nodes by backhaul link and support on/off behaviour in network
The DRS configuration informations of the node of work, or by supporting that the information interface of the base station of operation on/off operations (can have with adjacent
Line interface or wireless interface) obtain network in support on/off operation node DRS configuration informations.If for example, standard agreement
In define several DRS signals type/sending cycle and biasing combination, then base station the mode of blind Detecting may be used and obtain
Take the above DRS configuration informations.
When the radio node is user equipment (UE), the radio node obtains the section that on/off operations are supported in network
Point DRS configuration informations may include:
The UE directly acquires pre-defined DRS configuration informations, that is, directly acquires specified in standard agreement in on/
The DRS configuration informations used under off scenes, or by the notification information of the corresponding serving BSs of the UE, obtain and propped up in network
Hold the DRS configuration informations of the node of on/off operations.Such as the RRC signalings that are sent by serving BS of UE are obtained and are supported in network
The DRS configuration informations of the node of on/off operations.
202, radio node monitors the pilot signal for measurement that neighbor base stations are sent, and determines the reference of each neighbor base stations
Signal reception power RSRP values;
In the present embodiment, the pilot signal for measurement may include finding signal DRS;It is synchronous based on DRS is possible
Signal PSS, secondary synchronizing signal SSS, CRS or channel status reference signal CSI-RS etc., are not construed as limiting herein.It is described to be used to measure
Pilot signal can also be that including CRS and DRS, radio node monitors the DRS for being in that neighbor base stations are sent under off states, and
Monitor the CRS for being in that neighbor base stations are sent under on states.
203, radio node is more than the neighbours of predetermined power thresholding in RSRP values according to the RSRP values of each neighbor base stations
In base station, chooses the highest M base station of RSRP values and cooperation set is added;
204, the information of the cooperation set is notified target BS by radio node, with the cooperation of the determination radio node
Collection of base stations.
In the present embodiment, the information of the cooperation set may include the base station identification information of each cooperative base station and each cooperation
The load information of base station, is not construed as limiting herein;Radio node by it is described cooperation set information notify target BS, by with mesh
The interaction for marking base station, to determine the cooperation set of radio node.
In Fig. 1, embodiment shown in Fig. 2, the pilot signal for measurement can include public reference signal simultaneously
CRS and DRS, the radio node monitor the pilot signal for measurement that neighbor base stations are sent, determine each neighbor base stations
RSRP values include:The radio node is monitored according to the DRS configuration informations and is in what neighbor base stations under off states were sent
DRS;The radio node monitors the CRS for being in that neighbor base stations are sent under on states;The radio node is according to the monitoring
DRS and CRS determines the RSRP values of each neighbor base stations of the radio node.Referring to Fig. 3, building cooperation in the embodiment of the present invention
One embodiment of the method for set includes:
301, radio node obtains the DRS configuration informations for the node that on/off operations are supported in network;
In the present embodiment, the DRS configuration informations include the type of DRS signals, the sending cycle of DRS signals, DRS signals
Offset information.
In the present embodiment, radio node can be the various wireless devices such as base station or user equipment, be not construed as limiting herein.
When the radio node is base station, the radio node obtains the node that on/off operations are supported in network
DRS configuration informations may include:
The base station directly acquires pre-defined DRS configuration informations, that is, directly acquires specified in standard agreement in on/
The DRS configuration informations used under off scenes, or obtained from center control nodes by backhaul link and support on/off behaviour in network
The DRS configuration informations of the node of work, or by supporting that the information interface of the base station of operation on/off operations (can have with adjacent
Line interface or wireless interface) obtain network in support on/off operation node DRS configuration informations.If for example, standard agreement
In define several DRS signals type/sending cycle and biasing combination, then base station the mode of blind Detecting may be used and obtain
Take the above DRS configuration informations.
When the radio node is user equipment (UE), the radio node obtains the section that on/off operations are supported in network
Point DRS configuration informations may include:
The UE directly acquires pre-defined DRS configuration informations, that is, directly acquires specified in standard agreement in on/
The DRS configuration informations used under off scenes, or by the notification information of the corresponding serving BSs of the UE, obtain and propped up in network
Hold the DRS configuration informations of the node of on/off operations.Such as the RRC signalings that are sent by serving BS of UE are obtained and are supported in network
The DRS configuration informations of the node of on/off operations.
302, radio node monitors the DRS for being in that neighbor base stations are sent under off states according to the DRS configuration informations;
In the present embodiment, the pilot signal for measurement includes finding signal DRS;DRS may be primary synchronization signal
(Primary Synchronization Signal, PSS), secondary synchronizing signal (Secondary Synchronization
Signal, SSS), CRS or channel status reference signal (Channel-State Information Reference signal,
CSI-RS) etc.), it is not construed as limiting herein.
303, radio node monitors the CRS for being in that neighbor base stations are sent under on states;
Neighbor base stations can all send CRS per subframe under on states, and when in off states, neighbor base stations can be with larger
Period distances (such as 20ms) send find signal (Discovery Reference Signal, DRS), DRS may based on
Synchronizing signal (Primary Synchronization Signal, PSS), secondary synchronizing signal (Secondary
Synchronization Signal, SSS), CRS or channel status reference signal (Channel-State Information
Reference signal, CSI-RS) etc.).
Monitoring for CRS, radio node can in arbitrary N number of subframe, other cells send the time-frequency location of CRS into
Row;Monitoring for DRS, radio node can be in N number of maximum DRS cycle durations, and each neighbor base stations send DRS around
Subframe on carry out.Maximum value in the DRS periods that the maximum DRS periods are each neighbor base stations around radio node.
304, radio node determines the RSRP of each neighbor base stations of the radio node according to the DRS and CRS of the monitoring
Value;
According to the calculation formula of the RSRP defined on standard agreement, i.e., according to the power of the pilot frequency information received as nothing
Therefore the RSRP of line node can determine the neighbor base stations in the neighbor base stations of radio node under off states according to DRS
RSRP values can determine the RSRP values of the neighbor base stations in the neighbor base stations of radio node under on states according to CRS.
305, radio node is more than the neighbours of predetermined power thresholding in RSRP values according to the RSRP values of each neighbor base stations
In base station, chooses the highest M base station of RSRP values and cooperation set is added;
306, the information of the cooperation set is notified target BS by radio node, with the cooperation of the determination radio node
Collection of base stations.
In the present embodiment, the information of the cooperation set includes the base station identification information of each cooperative base station and each cooperative base station
Load information, radio node by it is described cooperation set information notify target BS, by the interaction with target BS, with true
Determine the cooperation set of radio node.
Radio node described in Fig. 1 to Fig. 3 can be base station, can also be user equipment (UE), with reference to specific implementation
Example is described in detail, referring to Fig. 4, one embodiment of the method for structure cooperation set includes in the embodiment of the present invention:
401, base station obtains the DRS configuration informations for the node that on/off operations are supported in network;
In the present embodiment, the DRS configuration informations include the type of DRS signals, the sending cycle of DRS signals, DRS signals
Offset information.
In the present embodiment, the base station, which obtains, supports the DRS configuration informations of the node of on/off operations that can wrap in network
It includes:
The base station directly acquires pre-defined DRS configuration informations, that is, directly acquires specified in standard agreement in on/
The DRS configuration informations used under off scenes, or obtained from center control nodes by backhaul link and support on/off behaviour in network
The DRS configuration informations of the node of work, or by supporting that the information interface of the base station of operation on/off operations (can have with adjacent
Line interface or wireless interface) obtain network in support on/off operation node DRS configuration informations.If for example, standard agreement
In define several DRS signals type/sending cycle and biasing combination, then base station the mode of blind Detecting may be used and obtain
Take the above DRS configuration informations.
402, the DRS for being in that neighbor base stations are sent under off states is monitored in base station according to the DRS configuration informations;
In the present embodiment, the pilot signal for measurement includes finding signal DRS;DRS may be primary synchronization signal
(Primary Synchronization Signal, PSS), secondary synchronizing signal (Secondary Synchronization
Signal, SSS), CRS or channel status reference signal (Channel-State Information Reference signal,
CSI-RS) etc.), it is not construed as limiting herein.
403, the CRS for being in that neighbor base stations are sent under on states is monitored in base station;
Neighbor base stations can all send CRS per subframe under on states, and when in off states, neighbor base stations can be with larger
Period distances (such as 20ms) send find signal (Discovery Reference Signal, DRS), DRS may based on
Synchronizing signal (Primary Synchronization Signal, PSS), secondary synchronizing signal (Secondary
Synchronization Signal, SSS), CRS or channel status reference signal (Channel-State Information
Reference signal, CSI-RS) etc.).
Monitoring for CRS, the base station can in arbitrary N number of subframe, other cells send the time-frequency location of CRS into
Row;Monitoring for DRS, the base station can be in N number of maximum DRS cycle durations, and each neighbor base stations send DRS around
Subframe on carry out.Maximum value in the DRS periods that the maximum DRS periods are each neighbor base stations around radio node.
404, base station determines the RSRP values of each neighbor base stations of the radio node according to the DRS and CRS of the monitoring;
According to the calculation formula of the RSRP defined on standard agreement, i.e., according to the power of the pilot frequency information received as base
Therefore the RSRP to stand can determine the RSRP values of the neighbor base stations in the neighbor base stations of the base station under off states according to DRS,
The RSRP values of the neighbor base stations in the neighbor base stations of the base station under on states can be determined according to CRS.
405, base station is more than the neighbor base stations of predetermined power thresholding in RSRP values according to the RSRP values of each neighbor base stations
In, it chooses the highest M base station of RSRP values and cooperation set is added;
406, the information of the cooperation set is notified M base station in the cooperation set by base station respectively, so that respectively
Cooperative base station is confirming that when that the cooperation set is added sends feeding back confirmation message to the base station;
In the present embodiment, the information of the cooperation set includes the base station identification information of each cooperative base station and each cooperative base station
Load information, and request be added cooperation set signaling.
The information of the cooperation set is notified that the mode of M base station in the cooperation set can be by base station respectively:
(1) base station sends the cooperative base station id information of this base station to center control nodes, is notified by center control nodes each
Cooperative base station.
(2) base station is asked by the handshake interface between cooperative base station, such as X2 interface to the transmission of each cooperative base station
Seek the information that cooperation set is added.
407, base station receives the feeding back confirmation message of cooperative base station, and institute is added in the cooperative base station of feeding back confirmation message
The cooperative base station list for stating base station, establishes cooperative base station set.
Corresponding with 406, the information of the cooperation set is notified M base station in the cooperation set by base station respectively
Two ways also differs herein:
(1) it when the cooperation set can be added in cooperative base station (for example, Node 1) confirmation, is fed back to center control nodes
Confirmation message, base station receive the feeding back confirmation message for the cooperative base station that center control nodes are sent, and by feeding back confirmation message
Cooperative base station the cooperative base station list of the base station is added, establish cooperative base station set.Such as center control nodes receive
After the confirmation message of Node 1, the information that Node 1 confirms the addition cooperation set is fed back to Node 0, Node 0 receives center
After the confirmation message for the Node1 that control node is sent, Node 1 is included in the cooperative base station list of this base station (Node 0).
(2) when the cooperation set can be added in cooperative base station (for example, Node 1) confirmation, by between the base station
Handshake interface feeding back confirmation message, while the cooperative base station being included in the cooperative base station list of this base station.Such as base
It stands after (Node 0) receive the confirmation message of cooperative base station (Node 1), Node 1 is included in the cooperation of this base station (Node 0)
In station list.
The embodiment when radio node is UE is described below, referring to Fig. 5, structure cooperation set in the embodiment of the present invention
One embodiment of method include:
501, UE obtains the DRS configuration informations for the node that on/off operations are supported in network;
In the present embodiment, the DRS configuration informations include the type of DRS signals, the sending cycle of DRS signals, DRS signals
Offset information.
In the present embodiment, the UE, which is obtained, supports that the DRS configuration informations of the node of on/off operations include in network:
The UE directly acquires pre-defined DRS configuration informations, that is, directly acquires specified in standard agreement in on/
The DRS configuration informations used under off scenes, or by the notification information of the corresponding serving BSs of the UE, obtain and propped up in network
Hold the DRS configuration informations of the node of on/off operations.
502, UE monitors the DRS for being in that neighbor base stations are sent under off states according to the DRS configuration informations;
In the present embodiment, the pilot signal for measurement includes finding signal DRS;DRS may be primary synchronization signal
(Primary Synchronization Signal, PSS), secondary synchronizing signal (Secondary Synchronization
Signal, SSS), CRS or channel status reference signal (Channel-State Information Reference signal,
CSI-RS) etc.), it is not construed as limiting herein.
503, UE monitors the CRS for being in that neighbor base stations are sent under on states;
Neighbor base stations can all send CRS per subframe under on states, and when in off states, neighbor base stations can be with larger
Period distances (such as 20ms) send find signal (Discovery Reference Signal, DRS), DRS may based on
Synchronizing signal (Primary Synchronization Signal, PSS), secondary synchronizing signal (Secondary
Synchronization Signal, SSS), CRS or channel status reference signal (Channel-State Information
Reference signal, CSI-RS) etc.).
Monitoring for CRS, the UE can in arbitrary N number of subframe, other cells send the time-frequency location of CRS into
Row;Monitoring for DRS, UE can be in N number of maximum DRS cycle durations, and each neighbor base stations send the subframe of DRS around
Upper progress.Maximum value in the DRS periods that the maximum DRS periods are each neighbor base stations around radio node.
504, UE determines the RSRP values of each neighbor base stations of the radio node according to the DRS and CRS of the monitoring;
According to the calculation formula of the RSRP defined on standard agreement, i.e., according to the power of the pilot frequency information received as base
Therefore the RSRP to stand can determine the RSRP values of the neighbor base stations in the neighbor base stations of the UE under off states, root according to DRS
The RSRP values of the neighbor base stations in the neighbor base stations of the UE under on states can be determined according to CRS.
505, UE is more than the neighbor base stations of predetermined power thresholding in RSRP values according to the RSRP values of each neighbor base stations
In, it chooses the highest M base station of RSRP values and cooperation set is added;
506, the information of the cooperation set is sent to the serving BS of the UE by UE, so that the serving BS root
Cooperative base station set is established according to the information of the cooperation set.
The information of the cooperation set is notified the mode of M base station in the cooperation set by the serving BS of UE respectively
Can be:
(1) serving BS sends the cooperative base station id information of this base station to center control nodes, is led to by center control nodes
Know each cooperative base station.
It is true to center control nodes feedback when the cooperation set can be added in cooperative base station (for example, Node 1) confirmation
Recognize message, serving BS receives the feeding back confirmation message for the cooperative base station that center control nodes are sent, and feedback acknowledgment is disappeared
The cooperative base station list of the UE is added in the cooperative base station of breath, establishes cooperative base station set.Such as center control nodes receive
After the confirmation message of Node 1, confirm that the information that the cooperation set is added, Node 0 are received to serving BS Node0 feedbacks Node 1
After the confirmation message of the Node 1 sent to center control nodes, Node 1 is included in the cooperative base station list of UE.
(2) serving BS is sent out by the handshake interface between cooperative base station, such as X2 interface to each cooperative base station
The information for sending request that cooperation set is added.
When the cooperation set can be added in cooperative base station (for example, Node 1) confirmation, by between serving BS
Handshake interface feeding back confirmation message, while the cooperative base station being included in the cooperative base station list of UE.Such as serving BS
After (Node 0) receives the confirmation message of cooperative base station (Node 1), Node 1 is included in the cooperative base station list of UE.
In the present embodiment, the information for cooperating set includes the base station identification information and load information of each cooperative base station,
The information of the cooperation set is sent to the serving BS of the UE by the UE, so that the serving BS is according to the association
The information for making to gather establishes cooperative base station set.
In Fig. 1 to embodiment shown in fig. 5, the leading for measurement of neighbor base stations transmission is periodically monitored in the base station
Frequency signal;When the cooperative base station in the cooperative base station set no longer meets cooperation condition, for example, certain cooperative base stations due to
The variation of power or the variation of channel condition make the RSRP values of the pilot signal measured become smaller, and cannot be satisfied cooperation
It is required that the cooperative base station is deleted from the cooperative base station list;When meeting cooperation condition there are new base station, i.e. basis
When the RSRP values for the new base station that DRS or CRS is detected are met the requirements, the radio node is redefined according to the pilot signal
The RSRP values of each neighbor base stations, and cooperative base station set is re-established according to the RSRP values of each neighbor base stations.
For example, when the radio node is UE, UE periodically monitors the CRS/DRS of peripheral base station, works as hair
Now originally the base station in the cooperative base station list of UE no longer satisfaction cooperation condition when, to the serving BS Node 0 of the UE
The information, Node 0 is reported to delete the cooperative base station from the cooperative base station list of UE 0 after receiving the information.Work as discovery
When having new base station to meet cooperation condition, step 504-506 is repeated, which is added in the cooperative base station list of UE.
It is described below from serving BS side and is introduced, referring to Fig. 6, the side that structure cooperation is gathered in the embodiment of the present invention
One embodiment of method includes:
601, serving BS receives the information for the cooperation set that user equipment (UE) is sent, and the information of the cooperation set includes
The base station identification information of each cooperative base station;
602, serving BS sends request to each cooperative base station and is added according to the base station identification information of each cooperative base station
The signaling for the set that cooperates so that each cooperative base station confirm cooperation set is added when transmission feeding back confirmation message to described
Serving BS;
In the present embodiment, serving BS passes through center control nodes according to the base station identification information of each cooperative base station
The signaling that cooperation set is added in request is sent to each cooperative base station;Serving BS can also be directly by between cooperative base station
Interactive interface, such as X2 interface send the signaling that cooperation set is added in request to each cooperative base station, are not construed as limiting herein.
603, serving BS receives the feeding back confirmation message of cooperative base station, and institute is added in the base station of feeding back confirmation message
The cooperative base station list for stating UE, establishes cooperative base station set.
Corresponding with step 602, the feedback that serving BS can receive cooperative base station by the center control nodes is true
Recognize message, the feedback acknowledgment of cooperative base station can also be received directly by the interactive interface between cooperative base station, such as X2 interface
Message is not construed as limiting herein.
The embodiment of the radio node in the embodiment of the present invention is described below, referring to Fig. 7, the nothing in the embodiment of the present invention
One embodiment of line node 700 includes:
First determination unit 701, the pilot signal for measurement for monitoring neighbor base stations transmission, determines each neighbours' base
The Reference Signal Received Power RSRP values stood;
Selection unit 702 is more than predetermined power thresholding in RSRP values for the RSRP values according to each neighbor base stations
In neighbor base stations, chooses the highest M base station of RSRP values and cooperation set is added;
Second determines single 703, for the information of the cooperation set to be notified target BS, with the determination radio node
Cooperative base station set.
Optionally, the radio node can also include:
Acquiring unit 704 obtains before the pilot signal for measurement that the radio node monitors that neighbor base stations are sent
The discovery signal DRS configuration informations for the node that on/off operations are supported in network are taken, the DRS configuration informations include DRS signals
Type, the sending cycle of DRS signals, the offset information of DRS signals.
Optionally, the pilot signal for measurement further includes public reference signal CRS;
First determination unit 701 is specifically used for according to the DRS configuration informations, and monitoring is in neighbours under off states
The DRS that base station is sent;Monitor the CRS for being in that neighbor base stations are sent under on states;According to the DRS and CRS of the monitoring, institute is determined
State the RSRP values of each neighbor base stations of radio node.
Optionally, when the radio node is base station, the acquiring unit is specifically used for directly acquiring pre-defined
DRS configuration informations directly acquire the DRS configuration informations used under on/off scenes specified in standard agreement, or pass through
Backhaul link from center control nodes obtain network in support on/off operate node DRS configuration informations, or by with phase
Neighbour supports the information interface of the base station of operation on/off operations obtains the DRS of the node of on/off operations is supported to match confidence in network
Breath.
Optionally, when the radio node is user equipment (UE), the acquiring unit is specifically used for directly acquiring in advance
The DRS configuration informations of definition directly acquire the DRS configuration informations used under on/off scenes specified in standard agreement,
Or the notification information by the corresponding serving BSs of the UE, obtain the DRS configurations for the node that on/off operations are supported in network
Information.
Optionally, when the radio node is base station, second determination unit 703 is specifically used for the collaboration set
The information of conjunction notifies M base station in the cooperation set respectively, so that each cooperative base station is confirming the addition collaboration set
Feeding back confirmation message is sent when conjunction to the base station, the information of the cooperation set includes the Base Station Identification letter of each cooperative base station
The signaling of cooperation set is added in breath, load information and request;
Second determination unit 703 is additionally operable to receive the feeding back confirmation message of cooperative base station, and feedback acknowledgment is disappeared
The cooperative base station list of the base station is added in the cooperative base station of breath, establishes cooperative base station set.
Optionally, when the radio node is UE, second determination unit 703 is specifically used for gathering the cooperation
Information be sent to the serving BS of the UE so that the serving BS establishes cooperation according to the information of the cooperation set
The information of collection of base stations, the cooperation set includes the base station identification information of each cooperative base station and the load letter of each cooperative base station
Breath.
The embodiment of the serving BS in the embodiment of the present invention is described below, referring to Fig. 8, the clothes in the embodiment of the present invention
Business 800 one embodiment of base station include:
Receiving unit 801, the information of the cooperation set for receiving user equipment (UE) transmission, the information of the cooperation set
Include the base station identification information of each cooperative base station;
Transmission unit 802 sends to each cooperative base station and asks for the base station identification information according to each cooperative base station
The signaling of cooperation set is added, so that each cooperative base station is confirming that when that the cooperation set is added sends feeding back confirmation message extremely
The serving BS;
The receiving unit 801 is additionally operable to receive the feeding back confirmation message of cooperative base station, and by feeding back confirmation message
The cooperative base station list of the UE is added in base station, establishes cooperative base station set.
Optionally, the transmission unit 802 is specifically used for the base station identification information according to each cooperative base station, in
Heart control node sends the signaling that cooperation set is added in request to each cooperative base station;
The feedback acknowledgment that the receiving unit 801 is specifically used for receiving cooperative base station by the center control nodes disappears
Breath.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit
It closes or communicates to connect, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes:USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to before
Stating embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that:It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features;And these
Modification or replacement, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (17)
1. a kind of method of structure cooperation set, which is characterized in that the method includes:
Radio node obtains the DRS configuration informations for the node that on/off operations are supported in network, and the DRS configuration informations include
The offset information of the type of DRS signals, the sending cycle of DRS signals, DRS signals;
The radio node monitors the pilot signal for measurement that neighbor base stations are sent according to the DRS configuration informations, determines
The Reference Signal Received Power RSRP values of each neighbor base stations, the pilot signal for measurement include public reference signal CRS
With discovery signal DRS;
The radio node is more than the neighbor base stations of predetermined power thresholding in RSRP values according to the RSRP values of each neighbor base stations
In, it chooses the highest M base station of RSRP values and cooperation set is added;
The information of the cooperation set is notified target BS by the radio node, with the cooperative base station of the determination radio node
Set.
2. according to the method described in claim 1, which is characterized in that the radio node is supervised according to the DRS configuration informations
The pilot signal for measurement that neighbor base stations are sent is listened, determines the Reference Signal Received Power RSRP value packets of each neighbor base stations
It includes:
The radio node monitors the DRS for being in that neighbor base stations are sent under off states according to the DRS configuration informations;
The radio node monitors the CRS for being in that neighbor base stations are sent under on states;
The radio node determines the RSRP values of each neighbor base stations of the radio node according to the DRS and CRS of the monitoring.
3. according to the method described in claim 1, it is characterized in that, when the radio node be base station when, the radio node
It obtains and supports that the DRS configuration informations of the node of on/off operations include in network:
The base station directly acquires pre-defined DRS configuration informations, or obtains net from center control nodes by backhaul link
The DRS configuration informations of the node of on/off operations are supported in network, or pass through the base station with adjacent support operation on/off operations
Information interface obtains the DRS configuration informations for the node that on/off operations are supported in network.
4. according to the method described in claim 1, it is characterized in that, when the radio node be user equipment (UE) when, the nothing
Line node, which obtains, supports that the DRS configuration informations of the node of on/off operations include in network:
The UE directly acquires pre-defined DRS configuration informations, or by the notification information of the corresponding serving BSs of the UE,
Obtain the DRS configuration informations for the node that on/off operations are supported in network.
5. according to any method in claim 1 to 2, which is characterized in that described when the radio node is base station
The information of the cooperation set is notified target BS by radio node, with the cooperative base station set packet of the determination radio node
It includes:
The information of the cooperation set is notified M base station in the cooperation set by the base station respectively, so that each cooperation
Base station is confirming that transmission feeding back confirmation message to the base station, the information of the cooperation set when cooperation is gathered, which is added, includes
The signaling of cooperation set is added in the base station identification information of each cooperative base station, load information and request;
The base station receives the feeding back confirmation message of cooperative base station, and the base is added in the cooperative base station of feeding back confirmation message
The cooperative base station list stood, establishes cooperative base station set.
6. according to the method described in claim 5, it is characterized in that, the base station notifies the information of the cooperation set respectively
M base station in the cooperation set includes:
The information of the cooperation set is notified M base in the cooperation set by center control nodes by the base station respectively
It stands;
The feeding back confirmation message that the base station receives each cooperative base station includes:
The base station receives the feeding back confirmation message of each cooperative base station by the center control nodes.
7. according to any method in claim 1 to 2, which is characterized in that when the radio node is UE, the nothing
The information of the cooperation set is notified that target BS, the cooperative base station set with the determination radio node include by line node:
The information of the cooperation set is sent to the serving BS of the UE by the UE, so that the serving BS is according to institute
The information for stating cooperation set establishes cooperative base station set, and the information of the cooperation set includes the Base Station Identification letter of each cooperative base station
The load information of breath and each cooperative base station.
8. a kind of method of structure cooperation set, which is characterized in that including:
Serving BS receives the information for the cooperation set that user equipment (UE) is sent, and the information of the cooperation set includes each cooperation base
The base station identification information stood, the collaboration set are combined into RSRP values of the UE according to each neighbor base stations, are more than predetermined in RSRP values
In the neighbor base stations of power threshold, the highest M base station of RSRP values is chosen, the RSRP values of each neighbor base stations are the UE roots
The pilot signal for measurement that neighbor base stations are sent is monitored according to DRS configuration informations to determine, the pilot signal for measurement
Including public reference signal CRS and find signal DRS, the DRS configuration informations are to support on/off in UE acquisition networks
The DRS configuration informations of the node of operation;
The serving BS sends request to each cooperative base station and cooperation is added according to the base station identification information of each cooperative base station
The signaling of set, so that each cooperative base station is confirming that when that the cooperation set is added sends feeding back confirmation message to the service
Base station;
The serving BS receives the feeding back confirmation message of cooperative base station, and the UE is added in the base station of feeding back confirmation message
Cooperative base station list, establish cooperative base station set.
9. according to the method described in claim 8, it is characterized in that, the serving BS is according to the base station of each cooperative base station
Identification information, the signaling that request addition cooperation set is sent to each cooperative base station include:
The serving BS is according to the base station identification information of each cooperative base station, by center control nodes to each cooperative base station
Send the signaling that cooperation set is added in request;
The feeding back confirmation message that the serving BS receives cooperative base station includes:
The serving BS receives the feeding back confirmation message of cooperative base station by the center control nodes.
10. a kind of radio node, which is characterized in that including:
Acquiring unit obtains network before the pilot signal for measurement that the radio node monitors that neighbor base stations are sent
It is middle support on/off operation node discovery signal DRS configuration informations, the DRS configuration informations include DRS signals type,
The sending cycle of DRS signals, the offset information of DRS signals;
First determination unit, for monitoring the pilot signal for measurement that neighbor base stations are sent according to the DRS configuration informations,
Determine that the Reference Signal Received Power RSRP values of each neighbor base stations, the pilot signal for measurement include public reference signal
CRS and discovery signal DRS;
Selection unit is more than neighbours' base of predetermined power thresholding in RSRP values for the RSRP values according to each neighbor base stations
In standing, chooses the highest M base station of RSRP values and cooperation set is added;
Second determination unit, for the information of the cooperation set to be notified target BS, with the association of the determination radio node
Make collection of base stations.
11. radio node according to claim 10, which is characterized in that
First determination unit is specifically used for according to the DRS configuration informations, and monitoring is in neighbor base stations under off states and sends
DRS;Monitor the CRS for being in that neighbor base stations are sent under on states;According to the DRS and CRS of the monitoring, the wireless section is determined
The RSRP values of each neighbor base stations of point.
12. radio node according to claim 10, which is characterized in that described to obtain when the radio node is base station
It takes unit to be specifically used for directly acquiring pre-defined DRS configuration informations, or is obtained from center control nodes by backhaul link
The DRS configuration informations of the node of on/off operations are supported in network, or pass through the base station with adjacent support operation on/off operations
Information interface obtain network in support on/off operation node DRS configuration informations.
13. radio node according to claim 10, which is characterized in that when the radio node is user equipment (UE),
The acquiring unit is specifically used for directly acquiring pre-defined DRS configuration informations, or passes through the corresponding serving BSs of the UE
Notification information, obtain network in support on/off operation node DRS configuration informations.
14. according to any radio node in claim 10 to 11, which is characterized in that when the radio node is base station
When, second determination unit is specifically used for notifying the information of the cooperation set into M base in the cooperation set respectively
It stands, so that each cooperative base station is confirming that when that the cooperation set is added sends feeding back confirmation message to the base station, the association
The information for making to gather includes the base station identification information of each cooperative base station, and the signaling of cooperation set is added in load information and request;
Second determination unit is additionally operable to receive the feeding back confirmation message of cooperative base station, and by the cooperation of feeding back confirmation message
The cooperative base station list of the base station is added in base station, establishes cooperative base station set.
15. according to any radio node in claim 10 to 11, which is characterized in that when the radio node is UE
When, second determination unit is specifically used for for the information of the cooperation set being sent to the serving BS of the UE, so that
The serving BS establishes cooperative base station set according to the information of the cooperation set, and the information of the cooperation set includes each association
Make the load information of the base station identification information and each cooperative base station of base station.
16. a kind of serving BS, which is characterized in that including:
Receiving unit, the information of the cooperation set for receiving user equipment (UE) transmission, the information of the cooperation set includes each
The base station identification information of cooperative base station, the collaboration set are combined into RSRP values of the UE according to each neighbor base stations, super in RSRP values
It crosses in the neighbor base stations of predetermined power thresholding, chooses the highest M base station of RSRP values, the RSRP values of each neighbor base stations are institute
It states UE and the pilot signal determination for measurement that neighbor base stations are sent, the leading for measurement is monitored according to DRS configuration informations
Frequency signal includes public reference signal CRS and finds that signal DRS, the DRS configuration informations are to be supported in UE acquisition networks
The DRS configuration informations of the node of on/off operations;
Transmission unit sends request to each cooperative base station and association is added for the base station identification information according to each cooperative base station
Make the signaling gathered, so that each cooperative base station is confirming that when that the cooperation set is added sends feeding back confirmation message to the clothes
Business base station;
The receiving unit is additionally operable to receive the feeding back confirmation message of cooperative base station, and the base station of feeding back confirmation message is added
The cooperative base station list of the UE, establishes cooperative base station set.
17. serving BS according to claim 16, which is characterized in that the transmission unit is specifically used for according to described each
The base station identification information of cooperative base station sends the letter that cooperation set is added in request by center control nodes to each cooperative base station
It enables;
The receiving unit is specifically used for receiving the feeding back confirmation message of cooperative base station by the center control nodes.
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PCT/CN2015/080393 WO2016150007A1 (en) | 2015-03-23 | 2015-05-29 | Cooperation set constructing method, wireless node, and serving base station |
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CN103283156A (en) * | 2011-02-22 | 2013-09-04 | Lg电子株式会社 | Method of performing measurement at UE in wireless communication system and apparatus thereof |
CN103813376A (en) * | 2012-11-14 | 2014-05-21 | 株式会社日立制作所 | Signal measurement device and signal measurement method |
US8738065B2 (en) * | 2009-10-02 | 2014-05-27 | Kyocera Corporation | Radio communication system, large cell base station, and communication control method |
CN104080117A (en) * | 2014-07-23 | 2014-10-01 | 武汉虹信通信技术有限责任公司 | Small cell state detection method of LTE (Long Term Evolution) system |
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- 2015-05-29 WO PCT/CN2015/080393 patent/WO2016150007A1/en active Application Filing
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US8738065B2 (en) * | 2009-10-02 | 2014-05-27 | Kyocera Corporation | Radio communication system, large cell base station, and communication control method |
CN103283156A (en) * | 2011-02-22 | 2013-09-04 | Lg电子株式会社 | Method of performing measurement at UE in wireless communication system and apparatus thereof |
CN103813376A (en) * | 2012-11-14 | 2014-05-21 | 株式会社日立制作所 | Signal measurement device and signal measurement method |
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