WO2015165052A1 - 小区切换方法、用户设备及基站 - Google Patents
小区切换方法、用户设备及基站 Download PDFInfo
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- WO2015165052A1 WO2015165052A1 PCT/CN2014/076523 CN2014076523W WO2015165052A1 WO 2015165052 A1 WO2015165052 A1 WO 2015165052A1 CN 2014076523 W CN2014076523 W CN 2014076523W WO 2015165052 A1 WO2015165052 A1 WO 2015165052A1
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- reference signal
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- serving cell
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- 238000000034 method Methods 0.000 title claims abstract description 116
- 238000005259 measurement Methods 0.000 claims abstract description 988
- 238000001914 filtration Methods 0.000 claims description 29
- 230000004913 activation Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
Definitions
- the embodiments of the present invention relate to communication technologies, and in particular, to a cell handover method, a user equipment, and a base station. Background technique
- MIMO antenna technology has been widely used in wireless communication systems to increase system capacity and ensure cell coverage.
- the downlink of the LTE system adopts multi-antenna-based transmit diversity, open-loop/closed-loop spatial division multiplexing, and multi-stream transmission based on Demodulation Reference Signal (DM-RS).
- DM-RS Demodulation Reference Signal
- multi-stream transmission based on DM-RS mostly adopts two-dimensional beamforming, that is, the transmitting antennas are horizontally placed, and only horizontal beams can be generated.
- the configuration of two-dimensional antennas is introduced in the LTE Rel-12 standard, that is, the antennas are placed in both horizontal and vertical directions, so that horizontal and vertical directions can be simultaneously generated. Beamforming on top, ie three-dimensional beamforming.
- the cell currently holding the connection communication is a serving cell, and the cell that the UE may handover from the serving cell is called a target cell, and the UE has at least one target cell.
- the channel quality of the target cells needs to be measured, and the cell handover is performed according to the measurement result.
- the UE performs channel quality measurement according to a reference signal (Reference Signal, referred to as RS) corresponding to each of the target cells.
- RS Reference Signal
- one reference signal corresponds to a downtilt angle.
- the embodiments of the present invention provide a cell handover method, a user equipment, and a base station, to solve the problem that the common channel coverage of the target cell may be difficult to guarantee after the cell handover in the prior art.
- an embodiment of the present invention provides a cell handover method, including:
- the reference signal resource includes: the reference signal resource corresponding to the at least one target cell; each target cell corresponding to at least two sets of reference signal resources, each set of reference signal resources Corresponding to a precoding information;
- the serving cell base station sends, to the serving cell base station, the measurement result and the identifier of the reference signal resource corresponding to the measurement result, so that the serving cell base station determines, according to the measurement result, whether the UE performs cell handover, and if yes, the serving cell
- the base station sends a handover request message to the at least one target cell base station, and performs cell handover on the UE according to the handover request response message returned by the at least one target cell base station.
- the method before the receiving the reference signal resource sent by the at least one target cell base station, the method further includes:
- the configuration information includes: at least one of an antenna port number, an antenna port port number, and a pilot sequence time-frequency resource location.
- the receiving, by the at least one target cell, the reference signal resource includes: receiving the at least one target cell
- the base station transmits the at least two sets of reference signal resources in a time division manner.
- each set of reference signal resources corresponds to one measurement configuration; and the measurement configuration includes: measuring an activated initial system frame number SFN , subframe number, measurement period, measurement interval;
- the determining the obtained measurement result and the identifier of the reference signal resource corresponding to the measurement result before sending the identifier to the serving cell base station Also includes:
- Time-domain filtering is performed on the measurement result to update the measurement result.
- the method further includes:
- a reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources, and each set of reference signal resources corresponds to one precoding information;
- the method further includes:
- the channel quality of the serving cell is measured according to the reference signal resource corresponding to the serving cell, and the measurement result of the serving cell is obtained.
- the measurement result is channel quality indicator CQI information, reference signal received power RSRP information, reference signal received quality RSRQ information, and received signal.
- the strength indicates at least one of the RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of cell-specific reference signal resources;
- the measuring, according to the reference signal resource corresponding to the serving cell, the channel quality of the serving cell including:
- the channel quality of the serving cell is measured according to the at least one set of cell-specific reference signal resources corresponding to the serving cell, and the first measurement result of the serving cell is obtained.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of users Specific reference signal resources;
- the measuring, according to the reference signal resource corresponding to the serving cell, the channel quality of the serving cell including:
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources ;
- the measuring the channel quality of the at least one target cell according to the reference signal resource further includes:
- the measuring, according to the reference signal resource corresponding to the serving cell, the channel quality of the serving cell further includes:
- the obtained measurement result and the identifier of the reference signal resource corresponding to the measurement result are sent to the serving cell base station, Includes:
- the preset event triggering condition includes: a system event trigger condition or a different system event trigger condition.
- the same system event triggering condition includes any one of the following: a first event triggering condition, where the first measurement result of the serving cell is greater than or equal to a first preset threshold, and the second measurement result of the serving cell is greater than or equal to a second preset threshold;
- the first measurement result of the at least one target cell is greater than or equal to the first measurement result of the serving cell, and is greater than or equal to the first preset threshold; the second measurement result of the serving cell Greater than or equal to the second preset threshold;
- a fourth event triggering condition where the first measurement result of the at least one target cell is greater than or equal to the first preset threshold, and the second measurement result of the at least one target cell is greater than or equal to the second preset threshold;
- a fifth event triggering condition where the first measurement result of the at least one target cell is greater than or equal to the first preset threshold, and the second measurement result of the at least one target cell is greater than or equal to the second preset threshold;
- the first measurement result of the serving cell is smaller than the third preset threshold, and the second measurement result of the serving cell is smaller than the fourth preset threshold.
- the different system event triggering condition includes any one of the following:
- the first measurement result of the at least one target cell is greater than or equal to the first measurement result of the serving cell, and is greater than or equal to the first preset threshold, the second measurement result of the serving cell Greater than or equal to the second preset threshold;
- the seventh event triggering condition is that the first measurement result of the at least one target cell is greater than or equal to the first preset threshold, and the second measurement result of the serving cell is greater than or equal to the second preset threshold.
- the embodiment of the present invention further provides a cell handover method, including:
- the reference signal resource includes: the reference signal resource corresponding to the at least one target cell, each target cell corresponding to at least two sets of reference signal resources, and each set of reference signal resources corresponding to one precoding information;
- the method before the receiving the measurement result sent by the UE and the identifier of the reference signal resource corresponding to the measurement result, the method further includes: Notifying the UE, the number of reference signal resources of the cell base station, and the configuration information corresponding to each set of reference signal resources, so that the UE is configured according to the number of reference signal resources of each target cell base station,
- the configuration information corresponding to the reference signal resource receives the reference signal resource corresponding to each target cell, where the configuration information corresponding to each set of reference signal resources includes: the number of antenna ports, the port number of the antenna port, and At least one of the frequency sequence and the time-frequency resource location.
- each set of reference signal resources corresponds to one measurement configuration; and the measurement configuration includes: System frame number SFN, subframe number, measurement period, and measurement interval;
- the measurement result includes: a result of measuring, by the UE, a channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the measurement result is a result after the UE performs time domain filtering.
- the method further includes:
- a reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources; each set of reference signal resources corresponding to one precoding information;
- the measurement result further includes: a result of measuring, by the UE, a channel quality of the serving cell according to a reference signal resource corresponding to the serving cell.
- the determining, by the measurement result, whether the UE performs cell handover includes:
- the channel quality of the at least one target cell is greater than the channel quality of the serving cell, determining that the UE performs cell handover; or And determining, if the difference between the channel quality of the at least one target cell and the channel quality of the serving cell is greater than a preset threshold, determining that the UE performs cell handover.
- the sending, by the at least one target cell base station, the handover request message includes:
- the handover request message Transmitting, by the X2 air interface, the handover request message to the at least one target cell base station; correspondingly, the handover request response message is that the at least one target cell base station passes the
- the measurement result is channel quality indication CQI information, reference signal received power RSRP information, At least one of the reference signal reception quality RSRQ information and the reception signal indication strength RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of cell-specific reference signal resources;
- the measurement result includes: a first measurement result of the at least one target cell and a first measurement result of the serving cell; wherein, the first measurement result of the at least one target cell is a result of the channel quality measurement performed by the at least one set of the cell-specific reference signal resources corresponding to the target cell; the first measurement result of the serving cell is the at least one set of the UE according to the serving cell The result of channel quality measurement by the cell-specific reference signal resource.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is a result of the channel quality measurement performed by the at least one set of user-specific reference signal resources corresponding to each target cell; the second measurement result of the serving cell is the at least one set of the UE according to the serving cell User-specific reference signal resources are the result of channel quality measurements.
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources ;
- the measurement result further includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is that the UE separately Performing a channel quality measurement result according to the at least one set of user-specific reference signal resources corresponding to each target cell; the second measurement result of the serving cell is that the UE is according to the at least one corresponding to the serving cell The result of channel quality measurement by user-specific reference signal resources.
- the measurement result is sent by the UE according to a preset event trigger condition.
- the embodiment of the present invention further provides a cell handover method, including:
- the handover request message includes: a UE that requests handover, a measurement result, and an identifier of a reference signal resource corresponding to the measurement result;
- the measurement result includes: the UE a result of measuring a channel quality of the at least one target cell of the UE;
- the reference signal resource includes: a reference signal resource corresponding to the at least one target cell; each target cell corresponding to at least two sets of reference signal resources, each set of reference signals The resource corresponds to a precoding information;
- the determining, according to the measurement result, whether the UE performs cell handover includes:
- the sending the handover request response message to the serving cell base station includes:
- the serving cell base station And transmitting, by the handover request response message, the reference signal resource identifier corresponding to the precoding information or the precoding information to the serving cell base station, so that the serving cell base station according to the precoding information or the pre
- the reference signal resource identifier corresponding to the encoded information is small for the UE Zone switching.
- the handover request message is a message that is sent by the serving cell base station by using an X2 air interface
- the reference signal resource identifier corresponding to the precoding information or the precoding information is carried in the handover request response message by using the X2 air interface, and is sent to the serving cell base station.
- the measurement result is channel quality indication CQI information, reference signal received power RSRP information, reference signal reception quality RSRQ
- the information and received signal strength indicate at least one of the RSSI information.
- the reference signal resource corresponding to each target cell includes: at least one set of cell specific Reference signal resource;
- the measurement result includes: a first measurement result of the at least one target cell; a first measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell
- the reference signal resource corresponding to each target cell includes: at least one set of user specific Reference signal resource;
- the measurement result includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell
- the reference signal resource corresponding to each target cell further includes: at least one set of user-specific reference signal resources;
- the measurement result further includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell A set of user-specific reference signal resources for channel quality measurements.
- Determining the precoding information of the UE handover or the reference signal resource identifier corresponding to the precoding information according to the reference signal resource identifier corresponding to the measurement result, the result of the channel measurement of the channel, and the corresponding reference signal resource identifier include:
- the sending the precoding information to the serving cell base station by using the handover response message includes:
- the reference signal resource identifier corresponding to the first precoding information or the first precoding information and the reference signal resource identifier corresponding to the second precoding information or the first precoding information are responsive to the handover request Sending a message to the serving cell base station, so that the serving cell base station according to the first precoding information or the reference signal resource identifier corresponding to the first precoding information and the second precoding information or the The reference signal resource identifier corresponding to the second precoding information performs cell handover on the UE.
- an embodiment of the present invention provides a UE, including:
- a receiving module configured to receive a reference signal resource sent by the at least one target cell base station, where the reference signal resource includes: a reference signal resource corresponding to the at least one target cell; each target cell corresponds to at least two sets of reference signal resources, Each set of reference signal resources corresponds to one precoding information;
- a measurement module configured to measure, according to the reference signal resource, a channel quality of the at least one target cell, obtain a measurement result, and an identifier of a reference signal resource corresponding to the measurement result; and a sending module, configured to use the measurement result And the identifier of the reference signal resource corresponding to the measurement result is sent to the serving cell base station, so that the serving cell base station determines, according to the measurement result, whether the UE performs cell handover, and if yes, the serving cell base station sends the at least A target cell base station sends a handover request message, and performs cell handover on the UE according to the handover request response message returned by the at least one target cell base station.
- the receiving module And receiving, by the base station, the number of reference signal resources of each target cell sent by the serving cell base station, and corresponding to each set of reference signal resources, before receiving the reference signal resource sent by the at least one target cell base station
- the configuration information includes: one configuration information corresponding to each set of reference signal resources, where the configuration information includes: at least one of an antenna port number, an antenna port port number, and a pilot sequence time-frequency resource location.
- the receiving module is further configured to receive, by using the time division manner, the at least one target cell base station At least two sets of reference signal resources.
- each set of reference signal resources corresponds to one measurement configuration; and the measurement configuration includes: measuring an activated initial system frame number SFN , subframe number, measurement period, measurement interval;
- the measuring module is further configured to measure channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the UE further includes:
- a filtering module configured to perform time domain filtering on the measurement result after the sending module sends the measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, The measurement results are updated.
- the receiving module is further configured to receive, by the serving cell base station, the a reference signal resource corresponding to the serving cell, where the reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources, each set of reference signal resources corresponding to one precoding information; correspondingly, the measuring module is further used for Before the sending module sends the identifier of the reference signal resource corresponding to the measurement result and the measurement result to the serving cell base station, performing channel quality on the serving cell according to the reference signal resource corresponding to the serving cell Measurement, obtaining measurement results of the serving cell.
- the measurement result is channel quality indicator CQI information, reference signal received power RSRP information, reference signal received quality RSRQ information, and received signal.
- the strength indicates at least one of the RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of cell-specific reference signal resources;
- the measuring module is further configured to measure channel quality of the at least one target cell according to the at least one set of cell-specific reference signal resources corresponding to each target cell, to obtain the at least one target cell.
- a measurement result measuring a channel quality of the serving cell according to the at least one set of cell-specific reference signal resources corresponding to the serving cell, and obtaining a first measurement result of the serving cell.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the measuring module is further configured to measure channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, to obtain the at least one target cell. And measuring the channel quality of the serving cell according to the at least one set of user-specific reference signal resources corresponding to the serving cell, and obtaining a second measurement result of the serving cell.
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources ;
- the measuring module is further configured to measure channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, to obtain the at least one target cell. And measuring the channel quality of the serving cell according to the at least one set of user-specific reference signal resources corresponding to the serving cell, and obtaining a second measurement result of the serving cell.
- the sending module is further configured to send the measurement result to the serving cell base station according to a preset event trigger condition. .
- the embodiment of the present invention further provides a base station, including:
- a receiving module configured to receive a measurement result sent by the UE, and an identifier of the reference signal resource corresponding to the measurement result, where the measurement result includes: the reference signal resource sent by the UE according to the at least one target cell base station to the at least The measurement of the channel quality of a target cell
- the reference signal resource includes: reference signal resources corresponding to the at least one target cell, each target cell corresponding to at least two sets of reference signal resources, and each set of reference signal resources corresponding to one precoding information;
- a determining module configured to determine, according to the measurement result, whether the UE performs cell handover
- a sending module configured to: if the UE is determined to perform cell handover according to the measurement result, send a handover request message to the at least one target cell base station
- a switching module configured to perform cell handover on the UE according to the handover request response message returned by the at least one target cell base station.
- the sending module is further configured to receive, by the receiving module, the measurement result sent by the UE and a reference corresponding to the measurement result Before the identifier of the signal resource, the number of the reference signal resources of each target cell base station and the configuration information corresponding to each set of reference signal resources are notified to the UE, so that the UE is configured according to each target
- the reference signal resource number of the cell base station and the configuration information corresponding to each set of reference signal resources are received by the reference signal resource corresponding to each target cell; wherein, the configuration information corresponding to each set of reference signal resources includes: At least one of the number of antenna ports, the port number of the antenna port, the pilot sequence, and the time-frequency resource location.
- the set of reference signal resources corresponds to one measurement configuration; and the measurement configuration includes: The initial system frame number SFN, the subframe number, the measurement period, and the measurement interval are: the measurement result includes: the UE measures the channel quality of the at least one target cell according to the measurement configuration corresponding to the reference signal resource the result of.
- the measurement result is a result after the UE performs time domain filtering.
- the sending module is further configured to send a reference corresponding to the serving cell to the UE
- the reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources; each set of reference signal resources corresponds to one precoding information;
- the measurement result further includes: a result of measuring, by the UE, a channel quality of the serving cell according to a reference signal resource corresponding to the serving cell.
- the determining module is further configured to determine, according to the measurement result, a channel quality of the at least one target cell and a channel quality of the serving cell, respectively; if a channel quality of the at least one target cell is greater than the service Determining, by the channel quality of the cell, the UE to perform cell handover; or determining, if the difference between the channel quality of the at least one target cell and the channel quality of the serving cell is greater than a preset threshold, determining that the UE performs cell handover.
- the sending module is further configured to use the X2 air interface to the at least one target cell Sending, by the base station, the handover request message;
- the handover request message is a message that is sent by the at least one target cell base station by using the X2 air interface.
- the measurement result is channel quality indication CQI information, reference signal received power RSRP information, At least one of the reference signal reception quality RSRQ information and the reception signal indication strength RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of cell-specific reference signal resources;
- the measurement result includes: a first measurement result of the at least one target cell and a first measurement result of the serving cell; wherein, the first measurement result of the at least one target cell is a result of the channel quality measurement performed by the at least one set of the cell-specific reference signal resources corresponding to the target cell; the first measurement result of the serving cell is the at least one set of the UE according to the serving cell The result of channel quality measurement by the cell-specific reference signal resource.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is a result of channel quality measurement performed by the at least one set of user-specific reference signal resources corresponding to each target cell; a second measurement result of the serving cell is the UE And performing channel quality measurement according to the at least one set of user-specific reference signal resources corresponding to the serving cell.
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources ;
- the measurement result further includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is that the UE separately Performing a channel quality measurement result according to the at least one set of user-specific reference signal resources corresponding to each target cell; the second measurement result of the serving cell is that the UE is according to the at least one corresponding to the serving cell The result of channel quality measurement by user-specific reference signal resources.
- the measurement result is sent by the UE according to a preset event trigger condition.
- the embodiment of the present invention further provides a base station, including:
- a receiving module configured to receive a handover request message sent by the serving cell base station, where the handover request message includes: a UE that requests handover, a measurement result, and an identifier of a reference signal resource corresponding to the measurement result; the measurement result includes: a result of the UE measuring the channel quality of the at least one target cell of the UE; the reference signal resource includes: a reference signal resource corresponding to the at least one target cell; each target cell corresponding to at least two sets of reference signal resources Each set of reference signal resources corresponds to one precoding information;
- a determining module configured to determine, by the measurement result, whether the UE performs a cell handover
- a sending module configured to send a handover request response message to the serving cell base station, so that the serving cell base station responds to the handover request response message The UE performs cell handover.
- the determining module is further configured to: determine, according to the measurement result, a reference signal resource identifier, a channel quality measurement result thereof, and a corresponding reference. And determining, by the identifier of the signal resource, the precoding information after the UE is switched or the reference signal resource identifier corresponding to the precoding information;
- the sending module is further configured to send, by using the handover request response message, the reference signal resource identifier corresponding to the precoding information or the precoding information to the serving cell base station, so that the serving cell base station according to the Precoding information or reference signal resources corresponding to the precoding information Identifying a cell handover to the UE.
- the handover request message is a message that is sent by the serving cell base station by using an X2 air interface
- the sending module is further configured to carry, by using the X2 air interface, the precoding information or the reference signal resource identifier corresponding to the precoding information in the handover request response message, and send the identifier to the serving cell base station.
- the measurement result is channel quality indication CQI information, reference signal received power RSRP information, reference signal reception quality RSRQ
- the information and received signal strength indicate at least one of the RSSI information.
- the reference signal resource corresponding to each target cell includes: at least one set of cell specific Reference signal resource;
- the measurement result includes: a first measurement result of the at least one target cell; a first measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell
- the reference signal resource corresponding to each target cell includes: at least one set of user specific Reference signal resource;
- the measurement result includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell
- the reference signal resource corresponding to each target cell further includes: at least one set of user-specific reference signal resources;
- the measurement result further includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell A set of user-specific reference signal resources for channel quality measurements.
- the sending module is further configured to use, according to the first measurement result, a reference signal resource identifier, Determining the first precoding information after the UE handover or the reference signal resource identifier corresponding to the first precoding information, according to the channel quality result and the corresponding reference signal resource identifier, and corresponding to the second measurement result Determining, by the reference signal resource identifier, the self channel quality result, and the corresponding reference signal resource identifier, the second precoding information after the UE handover or the reference signal resource identifier corresponding to the second precoding information;
- the sending module is further configured to: use the reference signal resource identifier corresponding to the first precoding information or the first precoding information, and the reference signal corresponding to the second precoding information or the first precoding information
- the resource identifier is sent to the serving cell base station by using the handover request response message, so that the serving cell base station identifies, according to the first precoding information or the reference signal resource identifier corresponding to the first precoding information,
- the second precoding information or the reference signal resource identifier corresponding to the second precoding information performs cell handover on the UE.
- the embodiment of the present invention further provides a UE, including: a receiver, a processor, and a transmitter;
- the receiver is configured to receive a reference signal resource that is sent by the at least one target cell base station, where the reference signal resource includes: a reference signal resource corresponding to the at least one target cell; each target cell corresponds to at least two sets Reference signal resources, each set of reference signal resources corresponding to one precoding information;
- the processor is configured to measure, according to the reference signal resource, a channel quality of the at least one target cell, obtain a measurement result, and an identifier of a reference signal resource corresponding to the measurement result, where the transmitter is configured to:
- the measurement result and the identifier of the reference signal resource corresponding to the measurement result are sent to the serving cell base station, so that the serving cell base station determines, according to the measurement result, whether the UE performs cell handover, and if yes, the serving cell base station And transmitting a handover request message to the at least one target cell base station, and performing cell handover on the UE according to the handover request response message returned by the at least one target cell base station.
- the receiver is further configured to: before receiving the reference signal resource sent by the at least one target cell base station, receive the The number of reference signal resources of the target cell and the configuration information corresponding to each set of reference signal resources; wherein, each set of reference signal resources corresponds to one configuration information, and the configuration information includes: number of antenna ports, antenna At least one of the port number of the port, the pilot sequence, and the time-frequency resource location.
- the receiver is further configured to receive, by using the time division manner, the at least one target cell base station At least two sets of reference signal resources.
- each set of reference signal resources corresponds to one measurement configuration; and the measurement configuration includes: measuring an activated initial system frame number SFN , subframe number, measurement period, measurement interval;
- the processor is further configured to measure channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the processor is further configured to: at the transmitter, use the reference signal corresponding to the measurement result and the measurement result Before the identifier of the resource is sent to the serving cell base station, time-domain filtering is performed on the measurement result to update the measurement result.
- the receiver is further configured to receive the a reference signal resource corresponding to the serving cell, where the reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources, each set of reference signal resources corresponding to one precoding information; and the processor is further configured to Before transmitting, by the transmitter, the measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, the channel quality of the serving cell is measured according to the reference signal resource corresponding to the serving cell, and obtained The measurement result of the serving cell.
- the measurement result is channel quality indicator CQI information, reference signal received power RSRP information, reference signal received quality RSRQ information, and received signal.
- the strength indicates at least one of the RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of cell-specific reference signal resources;
- the processor is further configured to measure channel quality of the at least one target cell according to the at least one set of cell-specific reference signal resources corresponding to each target cell, to obtain the at least one target cell. a measurement result; measuring channel quality of the serving cell according to the at least one set of cell-specific reference signal resources corresponding to the serving cell, obtaining the service The first measurement result of the cell.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the processor is further configured to measure channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, to obtain the at least one target cell. And measuring the channel quality of the serving cell according to the at least one set of user-specific reference signal resources corresponding to the serving cell, and obtaining a second measurement result of the serving cell.
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources ;
- the processor is further configured to measure channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, to obtain the at least one target cell. And measuring the channel quality of the serving cell according to the at least one set of user-specific reference signal resources corresponding to the serving cell, and obtaining a second measurement result of the serving cell.
- the sending device is further configured to send the measurement result to the serving cell base station according to a preset event trigger condition. .
- the embodiment of the present invention further provides a base station, including: a receiver, a processor, and a transmitter;
- the receiver is configured to receive a measurement result sent by the UE and an identifier of the reference signal resource corresponding to the measurement result, where the measurement result includes: the reference signal resource sent by the UE according to the at least one target cell base station And a reference signal resource corresponding to the at least one target cell, where each target cell corresponds to at least two sets of reference signal resources, each set of reference signals The resource corresponds to a precoding information;
- the processor is configured to determine, according to the measurement result, whether the UE performs cell handover, where the transmitter is configured to determine, according to the measurement result, that the UE performs cell handover, to Transmitting, by the at least one target cell, a handover request message;
- the processor is further configured to perform cell handover on the UE according to a handover request response message returned by the at least one target cell base station.
- the transmitter is further configured to receive, at the receiver, a measurement result sent by the UE and an identifier of a reference signal resource corresponding to the measurement result. And before, the number of the reference signal resources of each target cell base station and the configuration information corresponding to each set of reference signal resources are notified to the UE, so that the UE is based on the reference of each target cell base station. The number of the signal resources and the configuration information corresponding to each set of reference signal resources are received by the reference signal resources corresponding to each target cell; wherein, the configuration information corresponding to each set of reference signal resources includes: the number of antenna ports At least one of the port number of the antenna port, the pilot sequence, and the time-frequency resource location.
- the set of reference signal resources corresponds to one measurement configuration; and the measurement configuration includes: System frame number SFN, subframe number, measurement period, and measurement interval;
- the measurement result includes: a result of measuring, by the UE, a channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the measurement result is a result after the UE performs time domain filtering.
- the sending device is further configured to send a reference corresponding to the serving cell to the UE
- the reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources; each set of reference signal resources corresponds to one precoding information;
- the measurement result further includes: a result of measuring, by the UE, a channel quality of the serving cell according to a reference signal resource corresponding to the serving cell.
- the processor is further configured to determine, according to the measurement result, a channel quality and a location of the at least one target cell Determining the channel quality of the serving cell; determining that the UE performs cell handover if the channel quality of the at least one target cell is greater than the channel quality of the serving cell; or if the channel quality of the at least one target cell is The difference between the channel quality of the serving cell is greater than a preset threshold, and determining that the UE performs cell handover.
- the transmitter is further configured to use the X2 air interface to the at least one target cell Sending, by the base station, the handover request message;
- the handover request response message is a message that is sent by the at least one target cell base station by using the X2 air interface.
- the measurement result is channel quality indication CQI information, reference signal received power RSRP information, At least one of the reference signal reception quality RSRQ information and the reception signal indication strength RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of cell-specific reference signal resources;
- the measurement result includes: a first measurement result of the at least one target cell and a first measurement result of the serving cell; wherein, the first measurement result of the at least one target cell is a result of the channel quality measurement performed by the at least one set of the cell-specific reference signal resources corresponding to the target cell; the first measurement result of the serving cell is the at least one set of the UE according to the serving cell The result of channel quality measurement by the cell-specific reference signal resource.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is The result of the channel quality measurement is performed by the at least one set of user-specific reference signal resources corresponding to each target cell; the second measurement result of the serving cell is the at least one set of the UE according to the serving cell User-specific reference signal resources are the result of channel quality measurements.
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources ;
- the measurement result further includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is that the UE separately Performing a channel quality measurement result according to the at least one set of user-specific reference signal resources corresponding to each target cell; the second measurement result of the serving cell is that the UE is according to the at least one corresponding to the serving cell The result of channel quality measurement by user-specific reference signal resources.
- the measurement result is sent by the UE according to a preset event trigger condition.
- a ninth aspect, the embodiment of the present invention further provides a base station, including: a receiver, a processor, and a transmitter;
- the receiver is configured to receive a handover request message sent by the serving cell base station, where the handover request message includes: a UE that requests handover, a measurement result, and an identifier of a reference signal resource corresponding to the measurement result;
- the measurement result includes: a result of the UE measuring the channel quality of the at least one target cell of the UE;
- the reference signal resource includes: a reference signal resource corresponding to the at least one target cell; each target cell corresponds to at least two a set of reference signal resources, each set of reference signal resources corresponding to a precoding information;
- the processor configured to determine, according to the measurement result, whether the UE performs cell handover, where the transmitter is configured to send a handover request response message to the serving cell base station, so that the serving cell base station according to the The handover request response message performs cell handover on the UE.
- the processor is further configured to: identify, according to the measurement result, a reference signal resource corresponding to the measurement result, a channel quality measurement result thereof, and a corresponding reference And determining, by the identifier of the signal resource, the precoding information after the UE is switched or the reference signal resource identifier corresponding to the precoding information;
- the transmitter is further configured to send, by using the handover request response message, the reference signal resource identifier corresponding to the precoding information or the precoding information to the serving cell base station, so that the serving cell base station according to the The precoding information or the reference signal resource identifier corresponding to the precoding information performs cell handover on the UE.
- the handover request message is a message that is sent by the serving cell base station by using an X2 air interface
- the transmitter is further configured to use the X2 air interface to perform the precoding information or the precoding
- the reference signal resource identifier corresponding to the information is carried in the handover request response message and sent to the serving cell base station.
- the measurement result is channel quality indication CQI information, reference signal received power RSRP information, reference signal reception quality RSRQ
- the information and received signal strength indicate at least one of the RSSI information.
- the reference signal resource corresponding to each target cell includes: at least one set of cell specific Reference signal resource;
- the measurement result includes: a first measurement result of the at least one target cell; a first measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell
- the reference signal resource corresponding to each target cell includes: at least one set of user specific Reference signal resource;
- the measurement result includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell
- the reference signal resource corresponding to each target cell further includes: at least one set of user-specific reference signal resources;
- the measurement result further includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one corresponding to each target cell A set of user-specific reference signal resources for channel quality measurements.
- the processor is further configured to: use, according to the first measurement result, a reference signal resource identifier, the channel Determining, by the quality result and the corresponding reference signal resource identifier, the first precoding information after the UE handover or the reference signal resource identifier corresponding to the first precoding information; and the reference signal resource identifier corresponding to the second measurement result Determining, by the self channel quality result and the corresponding reference signal resource identifier, the second precoding information or the second precoding information after the UE handover Reference signal resource identifier corresponding to the information;
- the transmitter is further configured to: reference signal resource identifier corresponding to the first precoding information or the first precoding information, and a reference signal corresponding to the second precoding information or the first precoding information
- the resource identifier is sent to the serving cell base station by using the handover request response message, so that the serving cell base station identifies, according to the first precoding information or the reference signal resource identifier corresponding to the first precoding information,
- the second precoding information or the reference signal resource identifier corresponding to the second precoding information performs cell handover on the UE.
- each reference signal resource corresponds to one precoding information
- each target cell corresponds to at least two sets of reference signal resources
- corresponding precoding of at least one target cell of the UE is performed.
- the plurality of sets of reference signal resources of the information respectively measure the channel quality obtained by measuring the channel quality of the at least one target cell, and determine, according to the measurement result, whether the UE performs handover, and the precoding information after the UE switches to the target cell, Thereby, the UE can be switched to be within the coverage of the common channel of the target cell after handover.
- FIG. 1 is a flowchart of a cell handover method according to Embodiment 1 of the present invention
- FIG. 2 is a flowchart of a cell handover method according to Embodiment 2 of the present invention.
- FIG. 3 is a flowchart of a cell handover method according to Embodiment 3 of the present invention.
- FIG. 5 is a flowchart of a cell handover method according to Embodiment 4 of the present invention.
- FIG. 6 is a flowchart of a cell handover method according to Embodiment 5 of the present invention.
- FIG. 7 is a flowchart of a cell handover method according to Embodiment 6 of the present invention.
- FIG. 8 is a flowchart of a cell handover method according to Embodiment 7 of the present invention.
- FIG. 9 is a flowchart of a cell handover method according to Embodiment 8 of the present invention.
- FIG. 10 is a flowchart of a cell handover method according to Embodiment 9 of the present invention
- 11 is a schematic structural diagram of a UE according to Embodiment 10 of the present invention
- FIG. 12 is a schematic diagram of a base station according to Embodiment 11 of the present invention.
- Embodiment 13 is a junction of a base station according to Embodiment 12 of the present invention.
- FIG. 16 is a schematic structural diagram of a base station according to Embodiment 15 of the present invention. detailed description
- FIG. 1 is a flowchart of a cell handover method according to Embodiment 1 of the present invention.
- the method in this embodiment is applicable to the case where the UE performs cell handover.
- the UE has one serving cell base station and at least one target cell base station.
- the target cell base station may be a base station in the neighbor cell list that is broadcast by the X2 port or configured by the network. This method is performed by the UE.
- the method in this embodiment specifically includes the following steps:
- Step 101 Receive reference signal resources sent by at least one target cell base station.
- the reference signal resource includes: reference signal resources corresponding to the at least one target cell; each target cell corresponds to at least two sets of reference signal resources, and each set of reference signal resources corresponds to one pre-coded information.
- Each set of reference signal resources of each target cell may be different types of reference signal resources corresponding to different precoding information, and may also be the same type of reference signal resources corresponding to different precoding information.
- Each set of reference signal resources corresponds to one precoding information, and one precoding information corresponds to a certain antenna beam covering the downtilt angle.
- the one precoding information may specifically be a precoding matrix.
- the transmit antenna of the serving cell base station and the target cell base station may be a two-dimensional antenna.
- each precoding information corresponds to a set of weighting factors for the antenna elements of each column of the two-dimensional antenna.
- the serving cell base station can be a macro station or a micro station.
- the serving cell base station is a macro station
- the target cell base station of the UE may be a micro station
- the cell handover method is actually to switch the UE from the macro cell served by the macro station to the micro cell served by the macro station.
- Step 102 Measure the channel quality of the at least one target cell according to the reference signal resource, and obtain a measurement result and an identifier of the reference signal resource corresponding to the measurement result.
- the UE has at least one target cell, each target cell has at least two sets of reference signal resources, and one set of reference signal resources corresponds to one precoding information, and one precoding information corresponds to a certain beam downtilt angle.
- the UE measures the channel quality of the at least one target cell according to the reference signal resource, and respectively corresponding to at least two precoding information in the common channel coverage of each target cell according to the reference signal resource of each target cell.
- the coverage of the dip angle is performed by the channel step 103, and the identifier of the reference signal corresponding to the measurement result and the measurement result is sent to the serving cell base station, so that the serving cell base station determines whether the UE performs cell handover according to the measurement result. If yes, the serving cell base station sends a handover request message to the at least one target cell base station, and performs cell handover on the UE according to the handover request response message returned by the at least one target cell base station.
- one target cell corresponds to at least two sets of measurement results.
- the identifier of the reference signal resource corresponding to the measurement result indicates the identifier of the reference signal resource used to obtain the measurement result, and the identifier of the reference signal resource may be the reference signal resource in at least two sets of reference signal resources corresponding to one target cell.
- logo The identifier corresponds to a weighting factor used by the precoding information, and may also correspond to precoding information. The identifier can be specifically indicated by the reference number of the reference signal resource.
- the UE separately measures the channel quality of the at least one target cell according to the multiple sets of reference signal resources corresponding to the different precoding information of the at least one target cell, and uses the measurement result and the reference signal corresponding to the measurement result.
- the identifier of the resource is sent to the serving cell base station, and the serving cell base station determines, according to the measurement result and the identifier of the reference signal resource corresponding to the measurement result, whether the UE performs handover and the UE performs handover to the target cell.
- each set of reference signal resources corresponds to one precoding information, and one precoding information corresponds to a certain beam downtilt angle, and each target cell corresponds to at least two sets of reference signal resources
- the scheme of the embodiment is used to perform the UE according to the reference signal resource.
- Cell handover which can make the beam after the UE is switched in the target cell
- the coverage of the co-channel is within the coverage beam, thereby improving the common channel coverage of the target cell after the UE cell handover.
- FIG. 2 is a flowchart of a cell handover method according to Embodiment 2 of the present invention. As shown in FIG. 2, before receiving the reference signal resource sent by the at least one target cell base station in the foregoing step 101, the method further includes:
- Step 201 Receive, by the base station of the serving cell, the number of reference signal resources of each target cell, and configuration information corresponding to each set of reference signal resources.
- Each set of reference signal resources corresponds to one configuration information, and the configuration information includes: at least one of an antenna port number, an antenna port port number, and a pilot sequence time-frequency resource location.
- the antenna port refers to a logical port used for transmission, and has no one-to-one correspondence with the physical antenna.
- the antenna port is defined by reference signal resources for the antenna. That is, the reference signal resource is the name of a logical port. It should be noted that, for different protocol versions, there may be different types of reference signal resources, and the different reference signal resources correspond to different antenna ports.
- Cell-specific Reference Signal (CRS) resource is transmitted on antenna port ⁇ 0 ⁇ , ⁇ 0, 1 ⁇ or ⁇ 0, 1, 2, 3 ⁇ ; user-specific reference signal (
- the UE-specific reference signal (UE-RS) includes at least a Demodulation Reference Signal (DMRS) and a CSI-RS (CSI-RS), where the DMRS resource is at the antenna port.
- DMRS Demodulation Reference Signal
- CSI-RS CSI-RS
- the CSI-RS resource is transmitted on the antenna port ⁇ 15 ⁇ , ⁇ 15, 16 ⁇ , ⁇ 15, 16, 17, 18 ⁇ or ⁇ 15,16, 17, 18, 19, 20, 21, 22 ⁇ .
- the UE receives the configuration information corresponding to each set of reference signal resources, and receives the reference signal resources according to the configuration information corresponding to each set of reference signal resources, so as to perform cell channel quality measurement according to the different types of reference signal resources.
- the receiving, by the step 101, the reference signal resource sent by the at least one target cell base station as follows:
- Step 202 Receive the at least two sets of reference signal resources that are sent by the at least one target cell base station in a time division manner.
- each set of reference signal resources is transmitted by each wireless subframe.
- the number of reference signal resources is At 2 o'clock
- the first set of reference signal resources and the second set of reference signal resources are alternately transmitted in each adjacent two subframes.
- each set of reference signal resources in the foregoing solution corresponds to a measurement configuration; the measurement configuration includes: measuring an initial system frame number (SFN), a subframe number, a measurement period, a measurement interval, and the like.
- each set of reference signal resources is transmitted in a wireless subframe.
- the measurement configuration corresponding to each set of reference signal resources is actually the configuration information required by the UE to measure each set of reference signal resources.
- the initial SFN of the measurement activation may be an SFN, that is, a radio frame number, that the UE starts to measure after receiving the set of reference signal resources.
- the subframe number is the subframe number of the SFN corresponding to the start of the measurement, that is, the specific subframe number at which the UE starts measuring.
- the UE performs channel quality measurement according to the configuration parameters corresponding to each set of reference signal resources, and ensures that the measurement of each channel quality is based on the same reference signal resource number, thereby ensuring the accuracy of each measurement result.
- the measurement configuration may be pre-stored on the UE side, or may be delivered by the serving cell base station to the UE.
- the step 102 is performed to measure the channel quality of the at least one target cell according to the reference signal resource, and specifically includes:
- Step 203 Perform measurement on a channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the method further includes:
- Step 204 Perform time domain filtering on the measurement result to update the measurement result. Specifically, the UE performs time domain filtering on the measurement result, so that the measurement result is more stable, so that the measurement result is updated.
- the time domain filtering is actually a time domain moving average filtering.
- Performing time domain filtering on the measurement result of each set of reference signal resources may be performed for each set of reference signal resources according to the measurement timing parameters in the corresponding measurement configuration, and layer 3 is performed by using the following formula (1) (Layer 3) , referred to as L3) filtering and updating of measurement results.
- F living represents the measurement result after this filter update, indicating the last filter
- M consult denotes the instantaneous measurement result of this time, ⁇ , which represents the filtering factor of the current filtering.
- a measurement time window may also be preset, at the measurement time. In the window, the UE performs channel quality measurement according to the at least two sets of reference signal resources of the at least one target cell, and the UE performs channel according to the reference signal resource corresponding to the precoding information updated by the at least one target cell after the measurement time window. Quality measurement.
- each set of reference signal resources corresponds to one configuration information, and each configuration corresponds to one downtilt angle.
- Each set of reference signal resources is subjected to separate measurement configuration and time domain filtering. Based on the above, this embodiment enables all UEs to perform flexible adjustment and expansion of cell coverage by selecting an optimal or better downtilt angle.
- FIG. 3 is a flowchart of a cell handover method according to Embodiment 3 of the present invention.
- the method further includes:
- Step 301 Receive a reference signal resource corresponding to the serving cell sent by the serving cell base station.
- the reference signal resources corresponding to the serving cell include: at least two sets of reference signal resources, and each set of reference signal resources corresponds to one precoding information.
- step 301 and the step 101 have no absolute timing relationship, and may be executed in the same manner or sequentially.
- the method further includes:
- the channel quality of the serving cell is measured according to the reference signal resource corresponding to the serving cell, and the measurement result of the serving cell is obtained.
- the above measurement result is a channel quality indicator.
- the information, the reference signal receiving power (RSRP) information, the reference signal receiving quality (RSRQ) information, and the Received Signal Strength Indication (RSSI) information are at least One.
- the measurement result includes: a measurement result of the at least one target cell and a measurement result of the serving cell, that is, the measurement result of the at least one target cell and the measurement result of the serving cell may both be CQI information, RSRP At least one of information, RSRQ information, and RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell in the foregoing solution specifically includes: at least one set of cell-specific reference signal resources.
- the cell-specific reference signal resource may be a CRS resource, and may also be other types of cell-specific reference signal resources.
- the channel quality of the at least one target cell is measured according to the reference signal resource, and the method includes:
- Step 302 The channel quality of the at least one target cell is measured according to the at least one set of cell-specific reference signal resources corresponding to each target cell, and the first measurement result of the at least one target cell is obtained.
- the foregoing measures the channel quality of the serving cell according to the reference signal resource corresponding to the serving cell, and specifically includes:
- Step 303 Measure a channel quality of the serving cell according to the at least one set of cell-specific reference signal resources corresponding to the serving cell, and obtain a first measurement result of the serving cell.
- the measurement result of the at least one target cell includes: a first measurement result of the at least one target cell; the measurement result of the serving cell includes: a first measurement result of the serving cell.
- FIG. 4 is a flowchart of another cell handover method according to Embodiment 3 of the present invention.
- the reference signal resource corresponding to each target cell and the service cell as described above includes: at least one set of user-specific reference signal resources.
- the user-specific reference signal resource may be, for example, a CSI-RS resource, may be a UE-RS resource, and may be any other user-specific reference signal resource. Different UEs in the same cell have different reference signal resources.
- the foregoing step 102 measuring, according to the reference signal resource, a channel quality of the at least one target cell, including:
- Step 401 Perform, according to the at least one set of user-specific reference signal resources corresponding to each target cell, a channel quality of the at least one target cell, and obtain a second measurement result of the at least one target cell.
- Performing the channel quality of the serving cell according to the reference signal resource corresponding to the serving cell Measurements including:
- Step 402 Measure a channel quality of the serving cell according to at least one set of user-specific reference signal resources corresponding to the serving cell, and obtain a second measurement result of the serving cell.
- the measurement result of the at least one target cell includes: a second measurement result of the at least one target cell; the measurement result of the serving cell includes: a second measurement result of the serving cell. Since different UEs have different reference signals, channel quality measurement is performed according to the user-specific reference signal, and a target cell with an optimal channel quality corresponding to the UE can be obtained, and different reference signal resources respectively correspond to one precoding information. And selecting an optimal cell downtilt beam for the UE according to the different precoding information.
- the common channel coverage of the target cell after the UE handover is better ensured, and the UE is selected to be switched by measuring the user-specific reference signal resource. After the optimal downtilt beam.
- FIG. 5 is a flowchart of a cell handover method according to Embodiment 4 of the present invention.
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources;
- the foregoing step 102 is performed to measure channel quality of the at least one target cell according to the reference signal resource, and further includes:
- Step 501 Measure the channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, and obtain a second measurement result of the at least one target cell.
- the foregoing measures the channel quality of the serving cell according to the reference signal resource corresponding to the serving cell, and further includes:
- Step 502 Measure a channel quality of the serving cell according to the at least one set of user-specific reference signal resources corresponding to the serving cell, and obtain a second measurement result of the serving cell.
- the measurement result of the at least one target cell includes: a first measurement result and a second measurement result of the at least one target cell;
- the measurement result of the serving cell includes: a first measurement result and a second measurement result of the serving cell.
- the step 103 sends the obtained measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, which specifically includes: The measurement result is sent to the serving cell base station according to a preset event trigger condition.
- the measurement result is sent according to a preset event trigger condition, that is, the periodic transmission of the measurement result is triggered and ended according to whether the trigger condition of the preset event is satisfied.
- the preset event triggering conditions as described above include: a system event trigger condition or a different system event trigger condition.
- the same system refers to a communication system in which the serving cell base station and the target cell base station have the same type.
- the event triggering condition of the same system includes any one of the following five event triggering conditions:
- the first event triggering condition is that the first measurement result of the serving cell is greater than or equal to a first preset threshold, and the second measurement result of the serving cell is greater than or equal to a second preset threshold.
- the second event triggering condition is that the first measurement result of the serving cell is smaller than the first preset threshold, or the second measurement result of the serving cell is smaller than the second preset threshold.
- the first measurement result of the at least one target cell is greater than or equal to the first measurement result of the serving cell, and is greater than or equal to the first preset threshold; the second measurement result of the serving cell is greater than or equal to the first Two preset thresholds.
- the fourth event triggering condition is that the first measurement result of the at least one target cell is greater than or equal to the first preset threshold, and the second measurement result of the at least one target cell is greater than or equal to the second preset threshold.
- the serving cell The first measurement result is smaller than the third preset threshold, or the second measurement result of the serving cell is smaller than the fourth preset threshold.
- the first event triggering condition includes an access condition and an leaving condition.
- the first measurement result of the serving cell may be expressed as M.
- the second measurement result is represented as M
- the first preset threshold is represented as Thr gas.
- the second preset threshold is represented as 7 "" e .
- the entry condition of the first event trigger condition can be expressed by the following formula (2): Ms l ⁇ Thresh ⁇ and Ms 2 ⁇ Thresh 2 .
- the departure condition of the first event trigger condition can be expressed by the following formula (3):
- the first event triggering condition may further include a difference between the first measurement result of the serving cell and the second measurement result and the preset cell reselection hysteresis parameter, and the first preset threshold and the second pre-predetermined Set the threshold to compare.
- the cell reselects the Hysteresis parameter, denoted as H ⁇ s .
- the cell reselection hysteresis parameter compared with the first measurement result may also be related to the second measurement result.
- the compared cell reselection lag parameters are different. If different, Bay IJ can be expressed as ⁇ and ⁇ respectively.
- the first event trigger condition to the fifth event trigger condition are event conditions arranged in order of event priority.
- the leave condition of the event trigger condition of the previous stage is the access condition of the trigger condition of the subsequent event. Specifically, if the UE determines, according to the measurement result obtained by the measurement, the first event triggering condition, the measurement result is periodically sent to the serving cell base station according to the first event triggering condition by using an event triggering sending manner. If the measurement result does not correspond to the first event trigger condition, it continues to determine whether it belongs to the second event trigger condition.
- the foregoing different system event triggering conditions include any one of the following:
- the first measurement result of the at least one target cell is greater than or equal to the first measurement result of the serving cell, and is greater than or equal to the first preset threshold, the second measurement result of the serving cell is greater than or equal to the first Two preset thresholds;
- the seventh event triggering condition is that the first measurement result of the at least one target cell is greater than or equal to the first preset threshold, and the second measurement result of the serving cell is greater than or equal to the second preset threshold.
- the foregoing embodiment further specifically limits the foregoing embodiment by using a specific manner of sending the measurement result, which can better ensure that the UE performs cell handover.
- the UE may also perform periodic transmission according to a preset period.
- FIG. 6 is a flowchart of a cell handover method according to Embodiment 5 of the present invention.
- the method is performed by a serving cell base station.
- the serving cell base station can be a macro station or a micro station. If the serving cell is a macro station, correspondingly, the target cell base station of the UE may Considering the micro station, then the cell handover method actually switches the UE from the macro cell served by the macro station to the micro cell served by the micro station.
- the method in this embodiment specifically includes the following steps:
- Step 601 Receive a measurement result sent by the UE and an identifier of a reference signal resource corresponding to the measurement result.
- the measurement result includes: a result of the UE measuring the channel quality of the at least one target cell according to the reference signal resource sent by the at least one target cell base station.
- the reference signal resource includes: reference signal resources corresponding to the at least one target cell, each target cell corresponding to at least two sets of reference signal resources, and each set of reference signal resources corresponding to one precoding information.
- the UE has at least one target cell, and one set of reference signal resources corresponds to one precoding information, and each target cell is configured with at least two sets of reference signal resources, so that the UE according to the corresponding reference signal resource to each target cell Channel quality measurement is performed on a coverage area corresponding to at least two downtilt angles in a common channel coverage.
- the reference signal resource of each target cell may be a weighting factor that acts differently on the same type of reference signal, and may correspond to different precoding information, or different weighting factors may be applied to different types of reference signals, thereby corresponding to different pre- Encoding information.
- the serving cell base station and the transmit antenna of each target cell base station may be a two-dimensional antenna.
- each precoding information corresponds to a set of weighting factors for each column of antennas of the two-dimensional antenna.
- the UE measures the channel quality of the at least one target cell according to the reference signal resource corresponding to the at least one target cell.
- the channel quality of each target cell is performed according to at least two sets of reference signal resources corresponding to each target cell. measuring.
- one target cell corresponds to at least two sets of measurement results.
- the identifier of the reference signal resource corresponding to the measurement result indicates the identifier of the reference signal resource used to obtain the measurement result, and the identifier of the reference signal resource may be the reference signal resource in at least two sets of reference signal resources corresponding to one target cell.
- logo The identifier corresponds to a different weighting factor used, and may also correspond to the lower precoding information.
- Step 602 Determine, according to the measurement result, whether the UE performs cell handover, and if yes, send a handover request message to the at least one target cell base station.
- the value of the channel quality corresponding to the at least one target cell of the UE is compared with a preset threshold, respectively, if the channel quality exists in the measurement result. If the target cell is greater than or equal to the preset threshold, the UE Cell handover is possible.
- the preset threshold value may be configured according to an average value of channel quality of a cell where the UE is located according to normal communication in the UE in different scenarios.
- the UE performs cell handover, and may further compare, according to the measurement result, a channel quality corresponding to the at least one target cell of the UE with a channel quality of a cell currently served by the UE, if a channel exists in the measurement result. If the quality is greater than or equal to the channel quality of the cell currently served by the UE, the UE may perform cell handover.
- the handover request message sent by the serving cell base station to each target cell base station includes: the channel quality corresponding to each target cell obtained by the UE measurement, the UE requesting handover, and the identifier of the reference signal resource used after the handover. Or at least one of the precoding information.
- Step 603 According to the handover request response message returned by the at least one target cell base station,
- the UE performs cell handover.
- each target cell base station After the at least one target cell is actually receiving the handover request message sent by the serving cell base station, each target cell base station is configured according to its own channel quality and the channel quality measured by the UE corresponding to the target cell in the handover request message. And determining whether the target cell performs cell handover of the UE.
- the target cell base station that performs cell handover on the UE returns a handover request response message to the serving cell base station, where the handover request response message indicates whether to perform cell handover and identification of the reference signal resource after the handover.
- the serving cell base station switches the UE to the target cell according to the received handover response message, and the target cell sends a reference signal resource corresponding to the identifier to the UE.
- the channel quality of the at least one target cell is measured according to multiple sets of reference signal resources corresponding to different precoding information configured by the at least one target cell of the UE, and the UE is determined according to the obtained measurement result. Whether to perform handover, if yes, according to the UE, handover to the target cell and the precoding information. Since each set of reference signal resources corresponds to one precoding information, the actual reference means that each set of reference signal resources corresponds to a downtilt angle within the common channel coverage of the target cell, and each target cell corresponds to at least two sets of reference signal resources.
- the cell handover is performed on the UE according to the reference signal resource, so that the beam after the UE is switched is in the coverage beam of the common channel of the target cell, so that the common channel coverage of the target cell after the cell handover is performed can be improved.
- FIG. 7 is a flowchart of a cell handover method according to Embodiment 6 of the present invention. As shown in FIG. 7, the method is in the solution step 601 of the foregoing embodiment. Before sending the reference signal resource to the UE, it also includes:
- Step 701 Notify the UE of the number of reference signal resources of each target cell and the configuration information corresponding to each set of reference signal resources.
- the specific notification manner may be, for example, a notification by means of a broadcast, or may be by other means, and the solution of the embodiment is not limited herein.
- the configuration information corresponding to each set of reference signal resources includes: at least one of an antenna port number, an antenna port port number, and a pilot sequence time-frequency resource location.
- the serving cell base station sends the configuration information to the UE, so that the UE receives the reference signal resource corresponding to different precoding information sent by the target cell base station according to the configuration information.
- each set of reference signal resources corresponds to a measurement configuration
- the measurement configuration includes: measuring an activated initial system frame number SFN, a subframe number, a measurement period, a measurement interval, and the like.
- the measurement result includes: a result of measuring, by the UE, a channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the measurement result as described above is the result of the time domain filtering of the UE. Specifically, after the UE measures the channel quality of the at least one target cell according to the measurement configuration corresponding to the reference signal resource, the obtained measurement result needs to be time-domain filtered to obtain a stable measurement result.
- the method described in the foregoing solution further includes:
- Step 702 Send, to the UE, a reference signal resource corresponding to the serving cell, where the reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources, where each set of reference signal resources corresponds to one precoding information.
- the measurement result further includes: a result of the UE measuring the channel quality of the serving cell according to the reference signal resource corresponding to the serving cell.
- determining, according to the measurement result, whether the UE performs cell handover according to the measurement result includes:
- Step 703 Determine, according to the measurement result, a channel quality of the at least one target cell and a channel quality of the serving cell, respectively.
- Step 704 If the channel quality of the at least one target cell is greater than the channel quality of the serving cell, determine that the UE performs cell handover; or
- the preset threshold is used to determine that the UE performs cell handover.
- determining, by the serving cell base station, whether the UE performs cell handover is actually determining whether the measurement result of the target cell base station is greater than a channel quality of the serving cell base station, and if yes, determining that the UE can perform cell handover.
- the step 602 sends a handover request message to the at least one target cell base station, which specifically includes:
- Step 705 Send the handover request message to the at least one target cell base station by using an X2 air interface.
- the handover request response message is a message sent by the at least one target cell base station through the X2 air interface.
- the measurement result is at least one of CQI information, RSRP information, RSRQ information, and RSSI information.
- the reference signal resources corresponding to each target cell and the serving cell as described above include: at least one set of cell-specific reference signal resources.
- the measurement result includes: a first measurement result of the at least one target cell and a first measurement result of the serving cell; wherein, the first measurement result of the at least one target cell is that the UE is respectively configured according to the target cell a result of measuring the channel quality of the at least one target cell by the corresponding at least one set of cell-specific reference signal resources; the first measurement result of the serving cell is the at least one set of cell-specific reference signals corresponding to the UE according to the serving cell The result of the resource measuring the channel quality of the serving cell.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is that the UE is respectively configured according to the target cell Corresponding at least one set of user-specific reference signal resources for performing channel quality measurement; the second measurement result of the serving cell is a result of channel quality measurement performed by the UE according to the at least one set of user-specific reference signal resources corresponding to the serving cell .
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources.
- the measurement result further includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell.
- the second measurement result of the at least one target cell is the The UE performs a channel quality measurement result according to the at least one set of user-specific reference signal resources corresponding to each target cell, where the second measurement result of the serving cell is that the UE according to the at least one set of user-specific reference corresponding to the serving cell Signal resources are the result of channel quality measurements.
- the measurement result is that the UE sends according to a preset event trigger condition.
- the preset event triggering condition may be an explanation of the event triggering condition described in the foregoing embodiment, and details are not described herein again.
- This embodiment also provides a cell handover method.
- the method is performed by a target cell base station, where the target cell base station may be a base station of a neighboring cell of the serving cell where the UE is located, and may be a macro station or a base station.
- FIG. 8 is a flowchart of a cell handover method according to Embodiment 7 of the present invention. As shown in Figure 6, the method includes the following:
- Step 801 Receive a handover request message sent by a serving cell base station, where the handover request message includes: a UE that requests handover, a measurement result, and an identifier of a reference signal resource corresponding to the measurement result; the measurement result includes: the UE is: The result of measuring the channel quality of at least one target cell of the UE.
- the reference signal resource includes: a reference signal resource corresponding to the at least one target cell; each target cell corresponds to at least two sets of reference signal resources, and each set of reference signal resources corresponds to one precoding information.
- Step 802 Determine, according to the measurement result, whether the UE performs cell handover.
- Step 803 If yes, send a handover request response message to the serving cell base station, so that the serving cell base station performs cell handover on the UE according to the handover request response message.
- the solution in this embodiment is the method embodiment of the target cell base station side corresponding to the solution of the foregoing embodiment.
- the specific implementation process and the beneficial effects are similar to the foregoing embodiment, and details are not described herein again.
- FIG. 9 is a flowchart of a cell handover method according to Embodiment 8 of the present invention. As shown in FIG. 9, in this embodiment, in the foregoing embodiment, step 802, determining whether the UE performs cell handover according to the measurement result specifically includes:
- Step 901 Determine, according to the identifier of the reference signal resource corresponding to the measurement result, the channel quality measurement result of the channel, and the identifier of the corresponding reference signal resource, the precoding information after the UE handover or the reference signal resource corresponding to the precoding information.
- the channel quality measurement result of the self is the channel quality measurement result of the target cell measured by any UE in the target cell.
- sending the handover request response message to the serving cell base station in step 803 includes: Step 902: Send the precoding information or the reference signal resource identifier corresponding to the precoding information to the serving cell by using the handover request response message And the base station, so that the serving cell base station performs cell handover on the UE according to the precoding information or the reference signal resource identifier corresponding to the precoding information.
- the handover request message is a message that is sent by the serving cell base station through the X2 air interface.
- the step 902 sends the precoding information or the reference signal resource identifier corresponding to the precoding information to the serving cell by using the handover request response message.
- Base station including:
- the precoding information or the reference signal resource identifier corresponding to the precoding information is carried in the X2 air interface and sent to the serving cell base station in the handover request response message.
- the measurement result is at least one of CQI information, RSRP information, RSRQ information, and RSSI information.
- the reference signal resource corresponding to each target cell includes: at least one set of cell-specific reference signal resources;
- the measurement result includes: the first measurement result of the at least one target cell; the first measurement result of the at least one target cell is that the UE respectively according to the at least one set of cell-specific reference signal resources corresponding to each target cell The result of channel quality measurement.
- the reference signal resource corresponding to each target cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one set of user-specific reference signal resources corresponding to each target cell The result of channel quality measurement.
- the reference signal resource corresponding to each target cell further includes: at least one set of user-specific reference signal resources;
- the measurement result further includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one set of user-specific reference signals corresponding to each target cell The result of the channel quality measurement by the resource.
- the reference signal resource identifier corresponding to the measurement result, the result of the channel measurement of the channel, and the corresponding reference signal resource identifier are determined, and the pre-switched UE is determined.
- the encoding information or the reference signal resource identifier corresponding to the precoding information includes: determining, according to the reference signal resource identifier corresponding to the first measurement result, the channel quality result of the channel, and the corresponding reference signal resource identifier, the UE after the handover a first precoding information or a reference signal resource identifier corresponding to the first precoding information;
- the sending, by the step 902, the reference information resource identifier corresponding to the precoding information or the precoding information to the serving cell base station by using the handover request response message includes:
- the UE performs cell handover.
- the first pre-coding information or the first pre-coding information corresponding to the UE after the UE is switched is determined by using the first measurement result and the second measurement result corresponding to each set of reference signal resources.
- the reference signal resource identifier corresponding to the second precoding information or the second precoding information, and the reference signal corresponding to the first precoding information or the first precoding information selected by the target cell The reference signal resource identifier corresponding to the resource identifier and the second precoding information or the second precoding information is sent to the serving cell base station, and the serving cell base station selects the optimal precoding information or the precoding information corresponding thereto. Referring to the signal resource identifier, and switching the UE to a downtilt angle corresponding to the optimal precoding information of the target cell.
- FIG. 10 is a flowchart of a cell handover method according to Embodiment 9 of the present invention. This embodiment is explained by a specific example. As shown in Figure 10, the method includes the following:
- Step 1001 The serving cell base station sends, by using a broadcast mode, the number of the reference signal resources of each target cell and the configuration information of each set of reference signal resources to the UE, where the configuration information includes: the number of antenna ports, and the port of the antenna port. No., pilot sequence at least one of the time and frequency resource locations.
- the reference signal resource includes at least one target cell and a reference corresponding to the serving cell.
- Signal resources each target cell corresponds to two types of reference signal resources
- the serving cell corresponds to two types of reference signal resources.
- one is CRS resources and the other is CSI-RS resources.
- Each set of reference signal resources respectively corresponds to one precoding information.
- Step 1002 The serving cell base station and the target cell base station send the reference signal resource to the UE in a time division manner.
- Step 1003 The UE measures the channel quality of the at least one target cell and the serving cell according to the reference signal resource and the measurement configuration corresponding to the reference signal resource on the UE side.
- the measurement configuration corresponding to the reference signal resource is actually a measurement configuration corresponding to each set of reference signal resources.
- the measurement configuration includes: measuring the starting SFN of activation, the subframe number, the measurement period, the measurement interval, and so on.
- Step 1004 The UE sends the obtained measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station.
- the measurement result includes the first measurement result of the at least one target cell and the serving cell, the at least one target cell, and the second measurement result of the serving cell.
- Step 1005 The serving cell base station determines, according to a channel quality measurement result corresponding to the at least one target cell and a channel quality measurement result corresponding to the serving cell, whether the UE performs cell switching.
- Step 1006 If yes, the serving cell base station sends a handover request message to the at least one target cell by using an X2 air interface, where the handover request message includes a UE requesting handover, the measurement result, and an identifier of the reference signal resource corresponding to the measurement result.
- Step 1007 The target cell base station determines, according to the first measurement result in the received handover request message, the first precoding information used by the UE for handover or the reference signal resource identifier corresponding to the first precoding information, according to the The second measurement result in the handover request message determines the second precoding information of the UE user handover or the reference signal resource identifier corresponding to the second precoding information.
- Step 1008 The target cell base station passes the first precoding information or the reference signal resource identifier corresponding to the first precoding information and the second precoding information or the reference signal resource identifier corresponding to the first precoding information through the X2 air interface.
- the bearer is sent to the serving cell base station in the handover request response message.
- Step 1009 The first precoding information of the handover request response message or the reference signal resource identifier corresponding to the first precoding information and the reference signal corresponding to the second precoding information of the second precoding information a resource identifier, combined with channel quality measurement of the at least one target cell As a result, a precoding information is selected from the reference signal resource identifier corresponding to the first precoding information or the first precoding information and the reference signal resource identifier corresponding to the second precoding information or the second precoding information.
- Step 1010 The serving cell base station serves the UE after the UE handover according to the selected precoding information.
- FIG. 11 is a schematic structural diagram of a UE according to Embodiment 10 of the present invention. As shown in FIG. 11, the UE 1100 includes:
- the receiving module 1101 is configured to receive reference signal resources sent by at least one target cell base station.
- the reference signal resource includes: reference signal resources corresponding to the at least one target cell; each target cell corresponds to at least two sets of reference signal resources, and each set of reference signal resources corresponds to one precoding
- the measurement module 1102 is configured to measure channel quality of the at least one target cell according to the reference signal resource, and obtain a measurement result and an identifier of the reference signal resource corresponding to the measurement result.
- the sending module 1103 is configured to send the measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, so that the serving cell base station determines, according to the measurement result, whether the UE performs cell handover, and if yes, the serving cell
- the base station sends a handover request message to the at least one target cell base station, and performs cell handover on the UE according to the handover request response message returned by the at least one target cell base station.
- the receiving module 1101 is further configured to: before receiving the reference signal resource sent by the at least one target cell base station, receive the number of reference signal resources of each target cell sent by the serving cell base station, and each set of reference Configuration information corresponding to the signal resource.
- the configuration information of each set of reference signal resources includes: at least one of an antenna port number, an antenna port port number, and a pilot sequence time-frequency resource location.
- the receiving module 1101 is further configured to receive the at least two sets of reference signal resources that are sent by the at least one target cell base station in a time division manner.
- each set of reference signal resources in the foregoing solution corresponds to a measurement configuration; the measurement configuration includes: measuring an activated initial system frame number SFN, a subframe number, a measurement period, and a measurement interval.
- the measurement module 1102 is further configured to measure a channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the UE 1100 as described in the above solution further includes:
- a filtering module configured to perform time domain filtering on the measurement result after the sending module 1103 sends the measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, to update the measurement result.
- the receiving module 1101 is further configured to receive the reference signal resource corresponding to the serving cell sent by the serving cell base station, where the reference signal resource corresponding to the serving cell includes: at least two sets For reference signal resources, each set of reference signal resources corresponds to one precoding information.
- the measurement module 1102 is further configured to: before the sending module 1103 sends the measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, according to the reference signal resource corresponding to the serving cell, the serving cell The channel quality is measured to obtain the measurement result of the serving cell.
- the measurement result is at least one of channel quality indication CQI information, reference signal received power RSRP information, reference signal reception quality RSRQ information, and received signal strength indication RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of cell-specific reference signal resources.
- the measurement module 1102 is further configured to measure channel quality of the at least one target cell according to the at least one set of cell-specific reference signal resources corresponding to each target cell, to obtain a first measurement result of the at least one target cell;
- the channel quality of the serving cell is measured according to the at least one set of cell-specific reference signal resources corresponding to the serving cell, and the first measurement result of the serving cell is obtained.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the measurement module 1102 is further configured to measure channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, to obtain a second measurement result of the at least one target cell; Measure the channel quality of the serving cell according to the at least one set of user-specific reference signal resources corresponding to the serving cell, and obtain the second of the serving cell. Measurement results.
- the reference signal resource corresponding to each target cell and the serving cell in the foregoing solution further includes: at least one set of user-specific reference signal resources;
- the measurement module 1102 is further configured to measure channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, to obtain a second measurement result of the at least one target cell;
- the channel quality of the serving cell is measured according to the at least one set of user-specific reference signal resources corresponding to the serving cell, and the second measurement result of the serving cell is obtained.
- the sending module 1103 is further configured to send the measurement result to the serving cell base station according to a preset event trigger condition.
- the UE provided by the solution in this embodiment can implement the cell switching method according to any one of the foregoing Embodiments 1 to 4, and the specific implementation process and the beneficial effects thereof are similar to the foregoing embodiment, and details are not described herein again.
- FIG. 12 is a schematic structural diagram of a base station according to Embodiment 11 of the present invention. As shown in FIG. 12, the base station 1200 includes:
- the receiving module 1201 is configured to receive the measurement result sent by the UE and the identifier of the reference signal resource corresponding to the measurement result, where the measurement result includes: the UE according to the reference signal resource sent by the at least one target cell base station to the at least one target cell
- the reference signal resource includes: a reference signal resource corresponding to the at least one target cell, each target cell corresponding to at least two sets of reference signal resources, and each set of reference signal resources corresponding to one precoding information.
- the determining module 1202 is configured to determine, according to the measurement result, whether the UE performs cell handover.
- the sending module 1203 is configured to: if the UE is determined to perform cell handover according to the measurement result, send a handover request message to the at least one target cell base station.
- the switching module 1204 is configured to perform cell handover on the UE according to the handover request response message returned by the at least one target cell base station.
- the sending module 1203 is further configured to: before the receiving module 1201 receives the measurement result sent by the UE and the identifier of the reference signal resource corresponding to the measurement result, the reference signal resource of each target cell base station is further used.
- the number, the configuration information corresponding to each set of reference signal resources is notified to the UE, so that the UE is based on the number of reference signal resources of each target cell base station,
- the configuration information corresponding to each set of reference signal resources receives the reference signal resource corresponding to each target cell.
- the configuration information corresponding to each set of reference signal resources includes: at least one of an antenna port number, an antenna port port number, and a pilot sequence time-frequency resource location.
- each set of reference signal resources corresponds to a measurement configuration;
- the measurement configuration includes: measuring an activated initial system frame number SFN, a subframe number, a measurement period, and a measurement interval;
- the measurement result includes: the UE And a result of measuring a channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the measurement result is the result of the time domain filtering of the UE.
- the sending module 1203 is further configured to send, to the UE, a reference signal resource corresponding to the serving cell, where the reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources; Each set of reference signal resources corresponds to one precoding information.
- the measurement result further includes: a result of the UE measuring the channel quality of the serving cell according to the reference signal resource corresponding to the serving cell.
- the determining module 1202 is further configured to determine, according to the measurement result, a channel quality of the at least one target cell and a channel quality of the serving cell, respectively, if the channel quality of the at least one target cell is greater than the serving cell The channel quality is determined, and the UE is determined to perform cell handover. Alternatively, if the difference between the channel quality of the at least one target cell and the channel quality of the serving cell is greater than a preset threshold, determining that the UE performs cell handover.
- the sending module 1203 is further configured to send the handover request message to the at least one target cell base station by using an X2 air interface, on the basis of the foregoing solution.
- the handover request message is a message sent by the at least one target cell base station through the X2 air interface.
- the measurement result is at least one of channel quality indication CQI information, reference signal received power RSRP information, reference signal reception quality RSRQ information, and received signal indication strength RSSI information.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of cell-specific reference signal resources;
- the measurement result includes: a first measurement result of the at least one target cell and a first measurement result of the serving cell.
- the first measurement result of the at least one target cell is that the UE performs channel according to the at least one set of cell-specific reference signal resources corresponding to each target cell.
- the result of the quality measurement; the first measurement result of the serving cell is a result of performing channel quality measurement by the UE according to the at least one set of cell-specific reference signal resources corresponding to the serving cell.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell.
- the second measurement result of the at least one target cell is a result of performing channel quality measurement by the UE according to the at least one set of user-specific reference signal resources corresponding to each target cell, where the second measurement result of the serving cell is The UE performs a channel quality measurement result according to the at least one set of user-specific reference signal resources corresponding to the serving cell.
- each of the target cell and the reference signal resource corresponding to the serving cell further includes: at least one set of user-specific reference signal resources;
- the measurement result further includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell.
- the second measurement result of the at least one target cell is the
- the UE performs a channel quality measurement result according to the at least one set of user-specific reference signal resources corresponding to each target cell, where the second measurement result of the serving cell is that the UE is configured according to the at least one set of users corresponding to the serving cell The result of channel quality measurement with reference signal resources.
- the measurement result is that the UE sends according to a preset event trigger condition.
- the base station provided by the solution in this embodiment is a serving cell base station, and the cell switching method according to any one of the foregoing Embodiment 5 or Embodiment 6 may be implemented, and the specific implementation process and beneficial effects thereof are similar to the foregoing embodiment, and are not Let me repeat.
- FIG. 13 is a schematic structural diagram of a base station according to Embodiment 12 of the present invention. As shown in FIG. 13, the base station 1300 includes:
- the receiving module 1301 is configured to receive a handover request message sent by the serving cell base station.
- the handover request message includes: a UE that requests handover, a measurement result, and an identifier of a reference signal resource corresponding to the measurement result;
- the measurement result includes: a result of measuring, by the UE, a channel quality of the at least one target cell of the UE;
- the reference signal resource includes: reference signal resources corresponding to the at least one target cell; each target cell corresponds to at least two sets of reference signal resources, and each set of reference signal resources corresponds to one precoding information.
- the determining module 1302 is configured to determine, according to the measurement result, whether the UE performs cell handover.
- the sending module 1303 is configured to send a handover request response message to the serving cell base station, so that the serving cell base station performs cell handover on the UE according to the handover request response message.
- the determining module 1302 is further configured to determine the precoding information after the UE is switched according to the identifier of the reference signal resource corresponding to the measurement result, the channel quality measurement result of the channel, and the identifier of the corresponding reference signal resource. a reference signal resource identifier corresponding to the precoding information;
- the sending module 1303 is further configured to send the precoding information or the reference signal resource identifier corresponding to the precoding information to the serving cell base station by using the handover request response message, so that the serving cell base station according to the precoding information or the pre The reference signal resource identifier corresponding to the coding information performs cell handover on the UE.
- the handover request message is a message that is sent by the serving cell base station through the X2 air interface; the sending module 1303 is further configured to carry the precoding information or the reference signal resource identifier corresponding to the precoding information in the switching by using the X2 air interface.
- the request response message is sent to the serving cell base station.
- the measurement result is at least one of channel quality indication CQI information, reference signal received power RSRP information, reference signal reception quality RSRQ information, and received signal strength indication RSSI information.
- the reference signal resources corresponding to each target cell include: at least one set of cell-specific reference signal resources;
- the measurement result includes: the first measurement result of the at least one target cell; the first measurement result of the at least one target cell is that the UE respectively according to the at least one set of cell-specific reference signal resources corresponding to each target cell The result of channel quality measurement.
- the reference signal resource corresponding to each target cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one set of user-specific reference signal resources corresponding to each target cell The result of channel quality measurement.
- the reference signal resource corresponding to each target cell further includes: at least one set of user-specific reference signal resources;
- the measurement result further includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE corresponds to each target cell respectively The result of channel quality measurement by the at least one set of user-specific reference signal resources.
- the sending module 1303 is further configured to determine, according to the reference signal resource identifier corresponding to the first measurement result, the channel quality result of the channel, and the corresponding reference signal resource identifier, the first precoding information after the UE handover or Determining a reference signal resource identifier corresponding to the first precoding information; determining a second precoding information after the UE is switched according to the reference signal resource identifier corresponding to the second measurement result, the self channel quality result, and the corresponding reference signal resource identifier Or a reference signal resource identifier corresponding to the second precoding information.
- the sending module 1303 is further configured to: pass the reference signal resource identifier corresponding to the first precoding information or the first precoding information, and the reference signal resource identifier corresponding to the second precoding information or the first precoding information by using the switching Sending a request response message to the serving cell base station, so that the serving cell base station according to the first precoding information or the reference signal resource identifier corresponding to the first precoding information and the second precoding information or the second precoding information
- the corresponding reference signal resource identifier performs cell handover on the UE.
- the base station provided by the solution in this embodiment is a target cell base station, and the cell handover method according to any one of the foregoing Embodiment 7 or Embodiment 8 may be implemented, and the specific implementation process and beneficial effects thereof are similar to the foregoing embodiment, and are not Let me repeat.
- FIG. 14 is a schematic structural diagram of a UE according to Embodiment 13 of the present invention. As shown in FIG. 14, the UE 1400 includes: a receiver 1401, a processor 1402, and a transmitter 1403;
- the receiver 1401 is configured to receive a reference signal resource sent by the at least one target cell base station, where the reference signal resource includes: a reference signal resource corresponding to the at least one target cell; each target cell corresponds to at least two sets of reference signals Resources, each set of reference signal resources corresponds to a precoding information.
- the processor 1402 is configured to measure the channel quality of the at least one target cell according to the reference signal resource, and obtain the measurement result and the identifier of the reference signal resource corresponding to the measurement result.
- the transmitter 1403 is configured to send the measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, so that the serving cell base station determines, according to the measurement result, whether the UE performs cell handover, and if yes, the serving cell Transmitting, by the base station, a handover request message to the at least one target cell base station, and according to the handover request response message returned by the at least one target cell base station The UE performs cell handover.
- the receiver 1401 is further configured to: before receiving the reference signal resource sent by the at least one target cell base station, receive the number of reference signal resources of each target cell sent by the serving cell base station, and each set of reference Configuration information corresponding to the signal resource.
- the configuration information of each set of reference signal resources includes: at least one of an antenna port number, an antenna port port number, and a pilot sequence time-frequency resource location.
- the receiver 1401 is further configured to receive the at least two sets of reference signal resources that are sent by the at least one target cell base station in a time division manner.
- each set of reference signal resources corresponds to a measurement configuration;
- the measurement configuration includes: measuring an initial system frame number of the activation SFN, a subframe number, a measurement period, and a measurement interval;
- the processor 1402 is further configured to measure a channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the processor 1402 is further configured to perform time domain filtering on the measurement result before the transmitter 1403 sends the measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, to This measurement is updated.
- the receiver 1401 is further configured to receive a reference signal resource corresponding to the serving cell sent by the serving cell base station, where the reference signal resource corresponding to the serving cell includes: at least two sets of reference Signal resource, each set of reference signal resources corresponds to a precoding
- the processor 1402 is further configured to: before the transmitter 1403 sends the measurement result and the identifier of the reference signal resource corresponding to the measurement result to the serving cell base station, the channel quality of the serving cell according to the reference signal resource corresponding to the serving cell The measurement is performed to obtain the measurement result of the serving cell.
- the measurement result is at least one of channel quality indication CQI information, reference signal received power RSRP information, reference signal received quality RSRQ information, and received signal strength indicator RSSI information.
- the reference signal resources corresponding to each target cell and the serving cell include: at least one set of cell-specific reference signal resources;
- the processor 1402 is further configured to measure the channel quality of the at least one target cell according to the at least one set of cell-specific reference signal resources corresponding to each target cell, to obtain a first measurement result of the at least one target cell;
- the at least one set of cell specific parameters corresponding to the serving cell The test signal resource measures the channel quality of the serving cell, and obtains the first measurement result of the serving cell.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the processor 1402 is further configured to measure channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, to obtain a second measurement result of the at least one target cell;
- the at least one set of user-specific reference signal resources corresponding to the serving cell measures the channel quality of the serving cell, and obtains a second measurement result of the serving cell.
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources;
- the processor 1402 is further configured to measure channel quality of the at least one target cell according to the at least one set of user-specific reference signal resources corresponding to each target cell, to obtain a second measurement result of the at least one target cell;
- the channel quality of the serving cell is measured according to the at least one set of user-specific reference signal resources corresponding to the serving cell, and the second measurement result of the serving cell is obtained.
- the transmitter 1403 is further configured to send the measurement result to the serving cell base station according to a preset event trigger condition.
- the UE provided by the solution in this embodiment can implement the cell switching method according to any one of the foregoing Embodiments 1 to 4, and the specific implementation process and the beneficial effects thereof are similar to the foregoing embodiment, and details are not described herein again.
- FIG. 15 is a schematic structural diagram of a base station according to Embodiment 14 of the present invention. As shown in FIG. 15, the base station 1500 includes: a receiver 1501, a processor 1502, and a transmitter 1503.
- the receiver 1501 is configured to receive the measurement result sent by the UE and the identifier of the reference signal resource corresponding to the measurement result, where the measurement result includes: the UE is configured according to the reference signal resource sent by the at least one target cell base station The channel signal quality of the target cell is measured; the reference signal resource includes: reference signal resources corresponding to the at least one target cell, each target cell corresponding to at least two sets of reference signal resources, and each set of reference signal resources corresponding to one precoding I Ft ⁇ , .,
- the processor 1502 is configured to determine, according to the measurement result, whether the UE performs cell handover, and the transmitter 1503 is configured to: if the UE is determined to perform cell handover according to the measurement result, send a handover request message to the at least one target cell base station;
- the processor 1502 is further configured to perform cell handover on the UE according to the handover request response message returned by the at least one target cell base station.
- the transmitter 1503 is further configured to: before the receiver 1501 receives the measurement result sent by the UE and the identifier of the reference signal resource corresponding to the measurement result, the number of reference signal resources of each target cell base station, The configuration information corresponding to each set of reference signal resources is notified to the UE, so that the UE receives the target cell according to the number of reference signal resources of each target cell base station and the configuration information corresponding to each set of reference signal resources.
- Corresponding reference signal resources; wherein, the configuration information corresponding to each set of reference signal resources includes: at least one of an antenna port number, an antenna port port number, and a pilot sequence time-frequency resource location.
- each set of reference signal resources corresponds to a measurement configuration;
- the measurement configuration includes: measuring an activated initial system frame number SFN, a subframe number, a measurement period, and a measurement interval;
- the measurement result includes: a result of measuring, by the UE, a channel quality of the at least one target cell according to a measurement configuration corresponding to the reference signal resource.
- the measurement result is the result of the time domain filtering of the UE.
- the transmitter 1503 is further configured to send, to the UE, a reference signal resource corresponding to the serving cell, where the reference signal resource corresponding to the serving cell includes: at least two sets of reference signal resources; each set of reference The signal resource corresponds to a precoding information;
- the measurement result further includes: a result of the UE measuring the channel quality of the serving cell according to the reference signal resource corresponding to the serving cell.
- the processor 1502 is further configured to determine, according to the measurement result, a channel quality of the at least one target cell and a channel quality of the serving cell, respectively, if the channel quality of the at least one target cell is greater than the serving cell The channel quality is determined, and the UE is determined to perform cell handover. Alternatively, if the difference between the channel quality of the at least one target cell and the channel quality of the serving cell is greater than a preset threshold, determining that the UE performs cell handover.
- the transmitter 1503 is further configured to base the at least one target cell through the X2 air interface.
- the station sends the handover request message;
- the handover request response message is a message sent by the at least one target cell base station through the X2 air interface.
- the measurement result is at least one of channel quality indication CQI information, reference signal received power RSRP information, reference signal received quality RSRQ information, and received signal indication strength RSSI information.
- the reference signal resources corresponding to each target cell and the serving cell include: at least one set of cell-specific reference signal resources;
- the measurement result includes: a first measurement result of the at least one target cell and a first measurement result of the serving cell; wherein, the first measurement result of the at least one target cell is that the UE is respectively configured according to the target cell Corresponding at least one set of cell-specific reference signal resources for performing channel quality measurement; the first measurement result of the serving cell is that the UE performs channel quality measurement according to the at least one set of cell-specific reference signal resources corresponding to the 0 serving cell result.
- the reference signal resource corresponding to each target cell and the serving cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is that the UE is respectively configured according to the target cell Corresponding at least one set of user-specific reference signal resources for performing channel quality measurement; the second measurement result of the serving cell is a result of channel quality measurement performed by the UE according to the at least one set of user-specific reference signal resources corresponding to the serving cell .
- the reference signal resource corresponding to each target cell and the serving cell further includes: at least one set of user-specific reference signal resources;
- the measurement result further includes: a second measurement result of the at least one target cell and a second measurement result of the serving cell; wherein, the second measurement result of the at least one target cell is that the UE separately according to each target a channel quality measurement result of the at least one set of user-specific reference signal resources corresponding to the cell; the second measurement result of the serving cell is that the UE performs channel quality measurement according to the at least one set of user-specific reference signal resources corresponding to the serving cell result.
- the measurement result is that the UE transmits according to a preset event trigger condition.
- the base station provided by the solution in this embodiment is a serving cell base station, and the cell switching method according to any one of the foregoing fifth embodiment or sixth embodiment may be implemented, and the specific implementation process and beneficial effects thereof are The application is similar and will not be described here.
- FIG. 16 is a schematic structural diagram of a base station according to Embodiment 15 of the present invention. As shown in FIG. 16, the base station 1600 includes: a receiver 1601, a processor 1602, and a transmitter 1603;
- the receiver 1601 is configured to receive a handover request message sent by the serving cell base station, where the handover request message includes: a UE that requests handover, a measurement result, and an identifier of a reference signal resource corresponding to the measurement result; the measurement result includes: a result of the UE measuring the channel quality of the at least one target cell of the UE; the reference signal resource includes: a reference signal resource corresponding to the at least one target cell; each target cell corresponds to at least two sets of reference signal resources, each set of reference The signal resource corresponds to a precoding information;
- the processor 1602 is configured to determine, according to the measurement result, whether the UE performs cell handover, and the transmitter 1603 is configured to send a handover request response message to the serving cell base station, so that the serving cell base station sends the handover request response message to the UE. Perform cell handover.
- the processor 1602 is further configured to determine the precoding information after the UE is switched according to the identifier of the reference signal resource corresponding to the measurement result, the channel quality measurement result of the channel, and the identifier of the corresponding reference signal resource. a reference signal resource identifier corresponding to the precoding information;
- the transmitter 1603 is further configured to send the precoding information or the reference signal resource identifier corresponding to the precoding information to the serving cell base station by using the handover request response message, so that the serving cell base station according to the precoding information or the pre The reference signal resource identifier corresponding to the coding information performs cell handover on the UE.
- the handover request message is a message sent by the serving cell base station through the X2 air interface
- the transmitter 1603 is further configured to carry the precoding information or the reference signal resource identifier corresponding to the precoding information in the X2 air interface, and send the reference signal resource identifier in the handover request response message to the serving cell base station.
- the measurement result is at least one of channel quality indication CQI information, reference signal received power RSRP information, reference signal received quality RSRQ information, and received signal strength indicator RSSI information.
- the reference signal resources corresponding to each target cell include: at least one set of cells Fixed reference signal resources;
- the measurement result includes: the first measurement result of the at least one target cell; the first measurement result of the at least one target cell is that the UE respectively according to the at least one set of cell-specific reference signal resources corresponding to each target cell The result of channel quality measurement.
- the reference signal resource corresponding to each target cell includes: at least one set of user-specific reference signal resources;
- the measurement result includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one set of user-specific reference signal resources corresponding to each target cell The result of channel quality measurement.
- the reference signal resource corresponding to each target cell further includes: at least one set of user-specific reference signal resources;
- the measurement result further includes: a second measurement result of the at least one target cell; a second measurement result of the at least one target cell is that the UE respectively according to the at least one set of user-specific reference signals corresponding to each target cell The result of the channel quality measurement by the resource.
- the processor 1602 is further configured to determine, according to the reference signal resource identifier corresponding to the first measurement result, the channel quality result of the channel, and the corresponding reference signal resource identifier, the first precoding information after the UE is switched. Or the reference signal resource identifier corresponding to the first precoding information; determining the second precoding after the UE switching according to the reference signal resource identifier corresponding to the second measurement result, the self channel quality result, and the corresponding reference signal resource identifier Information or a reference signal resource identifier corresponding to the second precoding information;
- the transmitter 1603 is further configured to: pass the reference signal resource identifier corresponding to the first precoding information or the first precoding information, and the reference signal resource identifier corresponding to the second precoding information or the first precoding information by using the switching Sending a request response message to the serving cell base station, so that the serving cell base station according to the first precoding information or the reference signal resource identifier corresponding to the first precoding information and the second precoding information or the second precoding information
- the corresponding reference signal resource identifier performs cell handover on the UE.
- the base station provided by the solution in this embodiment is a target cell base station, and the cell handover method according to any one of the foregoing Embodiment 7 or Embodiment 8 may be implemented, and the specific implementation process and beneficial effects thereof are similar to the foregoing embodiment, and are not Let me repeat.
- the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes the steps of the foregoing method embodiment; and the foregoing storage medium includes: a ROM, A variety of media that can store program code, such as RAM, disk, or optical disk.
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Abstract
本发明实施例提供一种小区切换方法、用户设备及基站。本发明的小区切换方法包括:接收至少一个目标小区基站发送的参考信号资源;该参考信号资源包括:该至少一个目标小区对应的参考信号资源;每个目标小区对应至少两套参考信号资源,每套参考信号资源对应一个预编码信息;根据该参考信号资源对该至少一个目标小区的信道质量进行测量,获得测量结果及该测量结果对应的参考信号资源的标识;将该测量结果及该测量结果对应的参考信号资源的标识发送给服务小区基站。本发明实施例可保证UE切换后能在该公共信道的覆盖范围内。
Description
小区切换方法、 用户设备及基站
技术领域
本发明实施例涉及通信技术, 尤其涉及一种小区切换方法、 用户设备及 基站。 背景技术
多输入多输出 (Multiple Input Multiple Output, 简称 MIMO) 的天线技术 已经被广泛地应用在无线通信***中来提高***容量和保证小区的覆盖。 例 如 LTE***的下行采用了基于多天线的发送分集,开环 /闭环的空分复用和基 于解调参考信号( Demodulation Reference Signal, 简称 DM-RS )的多流传输。 目前,基于 DM-RS的多流传输多采用二维的波束赋形, 即发送天线都是水平 放置, 只能产生水平方向的波束。 为提高资源的利用率及小区覆盖面积, 提 高多天线***的性能, LTE Rel-12标准中引入二维天线的配置, 即天线同时 放在水平和垂直方向上, 从而可以同时产生水平和垂直方向上的波束赋形, 即三维波束赋形。
(User Equipment, 简称 UE) 当前保持连接通信的小区为服务小区, 该 UE从该服务小区可能切换到的小区称为目标小区, 该 UE具有至少一个目标 小区。 UE进行小区切换之前, 需测量该些目标小区的信道质量, 根据测量结 果进行小区的切换。 该 UE 根据该些目标小区各自对应的一个参考信号 (Reference Signal, 简称 RS)分别进行信道质量的测量。 其中, 一个参考信号 对应一个下倾角。
现有技术中, 根据该参考信号分别对 UE 的目标小区进行信道质量的测 量时, 实际仅针对该 UE特定的参考信号及其对应的一个下倾角进行测量, 而未考虑目标小区的公共信道的覆盖范围。 因此可能出现基于该参考信号的 信道质量测量结果, UE切换到某个目标小区后使得该目标小区的公共信道却 不能覆盖到该 UE。
发明内容
本发明实施例提供一种小区切换方法、 用户设备及基站, 以解决现有技 术中小区切换后可能导致目标小区的公共信道覆盖难以保证的问题。
第一方面, 本发明实施例提供一种小区切换方法, 包括:
接收至少一个目标小区基站发送的参考信号资源; 其中, 所述参考信号 资源包括: 所述至少一个目标小区对应的参考信号资源; 每个目标小区对应 至少两套参考信号资源, 每套参考信号资源对应一个预编码信息;
根据所述参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得测量结果及所述测量结果对应的参考信号资源的标识;
将所述测量结果及所述测量结果对应的参考信号资源的标识 发送给服 务小区基站, 以使所述服务小区基站根据所述测量结果确定所述 UE是否进 行小区切换, 若是, 所述服务小区基站向所述至少一个目标小区基站发送切 换请求消息, 并根据所述至少一个目标小区基站返回的切换请求响应消息对 所述 UE进行小区切换。
根据第一方面, 在第一方面的第一种可能实现方式中, 所述接收至少一 个目标小区基站发送的参考信号资源之前, 还包括:
接收所述服务小区基站发送的所述每个目标小区的参考信号资源个数、 所述每套参考信号资源所对应的配置信息; 其中, 所述每套参考信号资源所 对应一个配置信息, 所述配置信息包括: 天线端口的数量、 天线端口的端口 号、 导频序列及时频资源位置中至少一个 。
根据第一方面或第一方面的第一种可能实现的方式, 在第二种可能实现 的方式中, 所述接收至少一个目标小区基站发送的参考信号资源, 包括: 接收所述至少一个目标小区基站采用时分方式发送的所述至少两套参考 信号资源。
根据第一方面的第二种可能实现的方式, 在第三种可能实现的方式中, 所述每套参考信号资源对应一个测量配置; 所述测量配置包括: 测量激活的 起始***帧号 SFN、 子帧号、 测量周期、 测量间隔;
所述根据所述参考信号资源对所述至少一个目标小区的信道质量进行测 量, 包括:
根据所述参考信号资源对应的测量配置对所述至少一个目标小区的信道 质量进行测量。
根据第一方面的第三种可能实现的方式, 在第四种可能实现的方式中, 所述将获得的测量结果及所述测量结果对应的参考信号资源的标识发送给所 述服务小区基站之前, 还包括:
对所述测量结果进行时域滤波, 以对所述测量结果进行更新。
根据第一方面至第一方面的第四种可能实现的方式中任一一种, 在第五 种可能实现的方式中, 所述方法还包括:
接收所述服务小区基站发送的所述服务小区对应的参考信号资源;其中, 所述服务小区对应的参考信号资源包括: 至少两套参考信号资源, 每套参考 信号资源对应一个预编码信息;
对应的, 所述将获得的测量结果及所述测量结果对应的参考信号资源的 标识发送给所述服务小区基站之前, 还包括:
根据所述服务小区对应的参考信号资源对所述服务小区的信道质量进行 测量, 获得所述服务小区的测量结果。
根据第一方面的第五种可能实现的方式, 在第六种可能实现的方式中, 所述测量结果为信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参 考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少一个。
根据第一方面的第六种可能实现的方式, 在第七种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套小区 特定参考信号资源;
所述根据所述参考信号资源对所述至少一个目标小区的信道质量进行测 量, 包括:
分别根据所述每个目标小区对应的所述至少一套小区特定参考信号资源 对所述至少一个目标小区的信道质量进行测量, 获得所述至少一个目标小区 的第一测量结果;
所述根据所述服务小区对应的参考信号资源对所述服务小区的信道质量 进行测量, 包括:
根据所述服务小区对应的所述至少一套小区特定参考信号资源对所述服 务小区的信道质量进行测量, 获得所述服务小区的第一测量结果。
根据第一方面的第六种可能实现的方式, 在第八种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套用户
特定参考信号资源 ;
所述根据所述参考信号资源对所述至少一个目标小区的信道质量进行测 量, 包括:
分别根据所述每个目标小区对应的所述至少一套用户特定参考信号资源 对所述至少一个目标小区的信道质量进行测量, 获得所述至少一个目标小区 的第二测量结果 ;
所述根据所述服务小区对应的参考信号资源对所述服务小区的信道质量 进行测量, 包括:
根据所述服务小区对应的所述至少一套用户特定参考信号资源对所述服 务小区的信道质量进行测量, 获得所述服务小区的第二测量结果。
根据第一方面的第七种可能实现的方式, 在第九种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源还包括: 至少一套用 户特定参考信号资源;
所述根据所述参考信号资源对所述至少一个目标小区的信道质量进行测 量, 还包括:
分别根据所述每个目标小区对应的所述至少一套用户特定参考信号资源 对所述至少一个目标小区的信道质量进行测量, 获得所述至少一个目标小区 的第二测量结果;
所述根据所述服务小区对应的参考信号资源对所述服务小区的信道质量 进行测量, 还包括:
根据所述服务小区对应的所述至少一套用户特定参考信号资源对所述服 务小区的信道质量进行测量, 获得所述服务小区的第二测量结果。
根据第一方面的第九种可能实现的方式, 在第十种可能实现的方式中, 所述将获得的测量结果及所述测量结果对应的参考信号资源的标识发送给所 述服务小区基站, 包括:
根据预设的事件触发条件将所述测量结果发送给所述服务小区基站。 根据第一方面的第十种可能实现的方式,在第十一种可能实现的方式中, 所述预设事件触发条件包括: 同***事件触发条件或异***事件触发条件。
根据第一方面的第十一种可能实现的方式, 在第十二种可能实现的方式 中, 所述同***事件触发条件包括以下任一一种:
第一事件触发条件, 为所述服务小区的第一测量结果大于等于第一预设 门限, 且所述服务小区的第二测量结果大于等于第二预设门限;
第二事件触发条件, 为所述服务小区的第一测量结果小于所述第一预设 门限, 或所述服务小区的第二测量结果小于所述第二预设门限;
第三事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述服务小区的第一测量结果, 且大于等于所述第一预设门限; 所述服务小 区的第二测量结果大于等于所述第二预设门限;
第***触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述第一预设门限, 且所述至少一个目标小区的第二测量结果大于等于所述 第二预设门限;
第五事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述第一预设门限, 且所述至少一个目标小区的第二测量结果大于等于所述 第二预设门限; 所述服务小区的第一测量结果小于第三预设门限, 所述服务 小区的第二测量结果小于第四预设门限。
根据第一方面的第十二种可能实现的方式, 在第十三种可能实现的方式 中, 所述异***事件触发条件包括以下任一一种:
第六事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述服务小区的第一测量结果, 且大于等于所述第一预设门限, 所述服务小 区的第二测量结果大于等于所述第二预设门限;
第七事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述第一预设门限, 所述服务小区的第二测量结果大于等于所述第二预设门 限。
第二方面, 本发明实施例还提供一种小区切换方法, 包括:
接收 UE发送的测量结果及所述测量结果对应的参考信号资源的标识 ; 其中, 所述测量结果包括: 所述 UE根据至少一个目标小区基站发送的 参考 信号资源对所述至少一个目标小区的信道质量进行测量的结果; 所述参考信 号资源包括: 所述至少一个目标小区对应的参考信号资源, 每个目标小区对 应至少两套参考信号资源, 每套参考信号资源对应一个预编码信息 ;
根据所述测量结果确定所述 UE是否进行小区切换, 若是, 向所述至少 一个目标小区基站发送切换请求消息;
根据所述至少一个目标小区基站返回的切换请求响应消息对所述 UE进 行小区切换。
根据第二方面, 在第二方面的第一种可能实现的方式中, 所述接收 UE 发送的测量结果及所述测量结果对应的参考信号资源的标识之前, 还包括: 将所述每个目标小区基站的参考信号资源个数、 所述每套参考信号资源 所对应的配置信息通知给所述 UE, 以使所述 UE根据所述每个目标小区基站 的参考信号资源个数、 所述每套参考信号资源所对应的配置信息接收所述每 个目标小区对应的参考信号资源; 其中, 所述每套参考信号资源所对应的配 置信息包括: 天线端口的数量、 天线端口的端口号, 导频序列及时频资源位 置中至少一个 。
根据第二方面或第二方面的第一种可能实现的方式, 在第二种可能实现 的方式中, 所述每套参考信号资源对应一个测量配置; 所述测量配置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期及测量间隔;
所述测量结果包括: 所述 UE根据所述参考信号资源对应的测量配置对 所述至少一个目标小区的信道质量进行测量的结果。
根据第二方面第二种可能实现的方式, 在第三种可能实现的方式中, 所 述测量结果为所述 UE进行时域滤波之后的结果。
根据第二方面至第二方面的第三种可能实现的方式中任一一种, 在第四 种可能实现的方式中, 所述方法还包括:
向所述 UE发送服务小区对应的参考信号资源; 其中, 所述服务小区对 应的参考信号资源包括: 至少两套参考信号资源; 每套参考信号资源对应一 个预编码信息;
对应的, 所述测量结果还包括: 所述 UE根据所述服务小区对应的参考 信号资源对所述服务小区的信道质量进行测量的结果。
根据第二方面的第四种可能实现的方式, 在第五种可能实现的方式中, 所述根据所述测量结果确定所述 UE是否进行小区切换, 包括:
根据所述测量结果, 分别判断所述至少一个目标小区的信道质量与所述 服务小区的信道质量的大小;
若所述至少一个目标小区的信道质量大于所述服务小区的信道质量, 确 定所述 UE进行小区切换; 或者,
若所述至少一个目标小区的信道质量与所述服务小区的信道质量的差值 大于预设阈值, 确定所述 UE进行小区切换。
根据第二方面至第二方面的第五种可能实现的方式中任一一种, 在第六 种可能实现的方式中,所述向所述至少一个目标小区基站发送切换请求消息, 包括:
通过 X2空口向所述至少一个目标小区基站发送所述切换请求消息; 对应的, 所述切换请求响应消息为所述至少一个目标小区基站通过所述
X2空口发送的消息。
根据第二方面至第二方面的第六种可能实现的方式中任一一种, 在第七 种可能实现的方式中, 所述测量结果为信道质量指示 CQI信息、 参考信号接 收功率 RSRP信息、参考信号接收质量 RSRQ信息及接收信号指示强度 RSSI 信息中至少一个。
根据第二方面的第七种可能实现的方式, 在第八种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套小区 特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果及 所述服务小区的第一测量结果; 其中, 所述至少一个目标小区的第一测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套小区特定参考 信号资源进行信道质量测量的结果;所述服务小区的第一测量结果为所述 UE 根据所述服务小区对应的所述至少一套小区特定参考信号资源进行信道质量 测量的结果。
根据第二方面的第七种可能实现的方式, 在第九种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套用户 特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果及 所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参考 信号资源进行信道质量测量的结果 ; 所述服务小区的第二测量结果为所述 UE根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道 质量测量的结果。
根据第二方面的第八种可能实现的方式, 在第十种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源还包括: 至少一套用 户特定参考信号资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果 及所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量 结果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参 考信号资源进行信道质量测量的结果 ;所述服务小区的第二测量结果为所述 UE根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道 质量测量的结果。
根据第二方面的第十种可能实现的方式,在第十一种可能实现的方式中, 所述测量结果为所述 UE根据预设的事件触发条件进行发送的。
第三方面, 本发明实施例还提供一种小区切换方法, 包括:
接收服务小区基站发送的切换请求消息; 其中, 所述切换请求消息包括: 请求切换的 UE、测量结果及所述测量结果对应的参考信号资源的标识; 所述 测量结果包括:所述 UE对所述 UE的至少一个目标小区的信道质量进行测量 的结果; 所述参考信号资源包括: 所述至少一个目标小区对应的参考信号资 源; 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个 预编码信息;
根据所述测量结果确定所述 UE是否进行小区切换;
向所述服务小区基站发送切换请求响应消息, 以使所述服务小区基站根 据所述切换请求响应消息对所述 UE进行小区切换。
根据第三方面, 在第三方面的第一种可能实现方式中, 所述根据所述测 量结果确定所述 UE是否进行小区切换包括:
根据所述测量结果对应的参考信号资源的标识、 自身的信道质量测量结 果及对应的参考信号资源的标识, 确定所述 UE切换后的预编码信息或所述 预编码信息对应的参考信号资源标识;
所述向所述服务小区基站发送切换请求响应消息包括:
将所述预编码信息或所述预编码信息对应的参考信号资源标识通过所述 切换请求响应消息发送至所述服务小区基站, 以使所述服务小区基站根据所 述预编码信息或所述预编码信息对应的参考信号资源标识对所述 UE进行小
区切换。
根据第三方面的第一种可能实现的方式, 在第二种可能实现的方式中, 所述切换请求消息为所述服务小区基站通过 X2空口发送的消息;
所述将所述预编码信息或所述预编码信息对应的参考信号资源标识通过 所述切换请求响应消息发送至所述服务小区基站, 包括:
通过所述 X2 空口将所述预编码信息或所述预编码信息对应的参考信号 资源标识携带在所述切换请求响应消息中发送给所述服务小区基站。
根据第三方面或第三方面的第一种可能实现的方式, 在第三种可能实现 的方式中,所述测量结果为信道质量指示 CQI信息、参考信号接收功率 RSRP 信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少 一个。
根据第三方面的第一种至第三种可能实现的方式中任一一种, 在第四种 可能实现的方式中, 所述每个目标小区对应的参考信号资源包括: 至少一套 小区特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果; 所述至少一个目标小区的第一测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套小区特定参考信号资源进行信道质量测量的结果。
根据第三方面的第一种至第三种可能实现的方式中任一一种, 在第五种 可能实现的方式中, 所述每个目标小区对应的参考信号资源包括: 至少一套 用户特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
根据第三方面的第四种可能实现的方式, 在第六种可能实现的方式中, 所述每个目标小区对应的参考信号资源还包括: 至少一套用户特定参考信号 资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
根据第三方面的第六种可能实现的方式, 在第七种可能实现的方式中,
所述根据所述测量结果对应的参考信号资源标识、 自身的信道测量的结果及 对应的参考信号资源标识, 确定所述 UE切换的预编码信息或所述预编码信 息对应的参考信号资源标识, 包括:
根据所述第一测量结果对应的参考信号资源标识、 所述自身的信道质量 结果及对应的参考信号资源标识, 确定所述 UE切换后的第一预编码信息或 所述第一预编码信息对应的参考信号资源标识;
根据所述第二测量结果对应的参考信号资源标识、 所述自身信道质量结 果及对应的参考信号资源标识, 确定所述 UE切换后的第二预编码信息或所 述第二预编码信息对应的参考信号资源标识;
所述将所述预编码信息通过所述切换响应消息发送至所述服务小区基站 包括:
将所述第一预编码信息或所述第一预编码信息对应的参考信号资源标识 和所述第二预编码信息或所述第一预编码信息对应的参考信号资源标识通过 所述切换请求响应消息发送至所述服务小区基站, 以使所述服务小区基站根 据所述第一预编码信息或所述第一预编码信息对应的参考信号资源标识和所 述第二预编码信息或所述第二预编码信息对应的参考信号资源标识对所述 UE进行小区切换。
第四方面, 本发明实施例提供一种 UE, 包括:
接收模块, 用于接收至少一个目标小区基站发送的参考信号资源; 其中, 所述参考信号资源包括: 所述至少一个目标小区对应的参考信号资源; 每个 目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编码信 息;
测量模块, 用于根据所述参考信号资源对所述至少一个目标小区的信道 质量进行测量, 获得测量结果及所述测量结果对应的参考信号资源的标识; 发送模块, 用于将所述测量结果及所述测量结果对应的参考信号资源的 标识发送给服务小区基站, 以使所述服务小区基站根据所述测量结果确定所 述 UE是否进行小区切换, 若是, 所述服务小区基站向所述至少一个目标小 区基站发送切换请求消息, 并根据所述至少一个目标小区基站返回的切换请 求响应消息对所述 UE进行小区切换。
根据第四方面, 在第四方面的第一种可能实现的方式中, 所述接收模块,
还用于在接收所述至少一个目标小区基站发送的参考信号资源之前, 接收所 述服务小区基站发送的所述每个目标小区的参考信号资源个数、 所述每套参 考信号资源所对应的配置信息; 其中, 所述每套参考信号资源所对应一个配 置信息, 所述配置信息包括: 天线端口的数量、 天线端口的端口号、 导频序 列及时频资源位置中至少一个。
根据第四方面或第四方面的第一种可能实现的方式, 在第二种可能实现 的方式中, 所述接收模块, 还用于接收所述至少一个目标小区基站采用时分 方式发送的所述至少两套参考信号资源。
根据第四方面的第二种可能实现的方式, 在第三种可能实现的方式中, 所述每套参考信号资源对应一个测量配置; 所述测量配置包括: 测量激活的 起始***帧号 SFN、 子帧号、 测量周期、 测量间隔;
所述测量模块, 还用于根据所述参考信号资源对应的测量配置对所述至 少一个目标小区的信道质量进行测量。
根据第四方面的第三种可能实现的方式, 在第四种可能实现的方式中, 所述 UE, 还包括:
滤波模块, 用于在所述发送模块将所述测量结果及所述测量结果对应的 参考信号资源的标识发送给所述服务小区基站之前, 对所述测量结果进行时 域滤波, 以对所述测量结果进行更新。
根据第四方面至第四方面的第四种可能实现的方式中任一一种, 在第五 种可能实现的方式中, 所述接收模块, 还用于接收所述服务小区基站发送的 所述服务小区对应的参考信号资源; 其中, 所述服务小区对应的参考信号资 源包括: 至少两套参考信号资源, 每套参考信号资源对应一个预编码信息; 对应的, 所述测量模块, 还用于在所述发送模块将所述测量结果及所述 测量结果对应的参考信号资源的标识发送给所述服务小区基站之前, 根据所 述服务小区对应的参考信号资源对所述服务小区的信道质量进行测量, 获得 所述服务小区的测量结果。
根据第四方面的第五种可能实现的方式, 在第六种可能实现的方式中, 所述测量结果为信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参 考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少一个。
根据第四方面的第六种可能实现的方式, 在第七种可能实现的方式中,
所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套小区 特定参考信号资源;
所述测量模块, 还用于分别根据所述每个目标小区对应的所述至少一套 小区特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得 所述至少一个目标小区的第一测量结果; 根据所述服务小区对应的所述至少 一套小区特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述 服务小区的第一测量结果。
根据第四方面的第六种可能实现的方式, 在第八种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套用户 特定参考信号资源;
所述测量模块, 还用于分别根据所述每个目标小区对应的所述至少一套 用户特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得 所述至少一个目标小区的第二测量结果; 根据所述服务小区对应的所述至少 一套用户特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述 服务小区的第二测量结果。
根据第四方面的第七种可能实现的方式, 在第九种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源还包括: 至少一套用 户特定参考信号资源;
所述测量模块, 还用于分别根据所述每个目标小区对应的所述至少一套 用户特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得 所述至少一个目标小区的第二测量结果; 根据所述服务小区对应的所述至少 一套用户特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述 服务小区的第二测量结果。
根据第四方面的第九种可能实现的方式, 在第十种可能实现的方式中, 所述发送模块, 还用于根据预设的事件触发条件将所述测量结果发送给所述 服务小区基站。
第五方面, 本发明实施例还提供一种基站, 包括:
接收模块, 用于接收 UE发送的测量结果及所述测量结果对应的参考信 号资源的标识; 其中, 所述测量结果包括: 所述 UE根据至少一个目标小区 基站发送的参考信号资源对所述至少一个目标小区的信道质量进行测量的结
果; 所述参考信号资源包括: 所述至少一个目标小区对应的参考信号资源, 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编 码信息;
判断模块, 用于根据所述测量结果确定所述 UE是否进行小区切换; 发送模块, 用于若根据所述测量结果确定所述 UE进行小区切换, 向所 述至少一个目标小区基站发送切换请求消息; 切换模块, 用于根据所述至少一个目标小区基站返回的切换请求响应消 息对所述 UE进行小区切换。
根据第五方面, 在第五方面的第一种可能实现的方式中, 所述发送模块, 还用于在所述接收模块接收所述 UE发送的所述测量结果及所述测量结果对 应的参考信号资源的标识之前, 将所述每个目标小区基站的参考信号资源个 数、 所述每套参考信号资源所对应的配置信息通知给所述 UE, 以使所述 UE 根据所述每个目标小区基站的参考信号资源个数、 所述每套参考信号资源所 对应的配置信息接收所述每个目标小区对应的参考信号资源; 其中, 所述每 套参考信号资源所对应的配置信息包括: 天线端口的数量、 天线端口的端口 号、 导频序列及时频资源位置中至少一个。
根据第五方面或第五方面的第一种可能实现的方式, 在第五方面的第二 种可能实现的方式中, 所述每套参考信号资源对应一个测量配置; 所述测量 配置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期及测量间隔; 所述测量结果包括: 所述 UE根据所述参考信号资源对应的测量配置对 所述至少一个目标小区的信道质量进行测量的结果。
根据第五方面的第二种可能实现的方式, 在第三种可能实现的方式中, 所述测量结果为所述 UE进行时域滤波之后的结果。
根据第五方面至第五方面的第三种可能实现的方式中任一一种, 在第四 种可能实现的方式中, 所述发送模块, 还用于向所述 UE发送服务小区对应 的参考信号资源; 其中, 所述服务小区对应的参考信号资源包括: 至少两套 参考信号资源; 每套参考信号资源对应一个预编码信息;
对应的, 所述测量结果还包括: 所述 UE根据所述服务小区对应的参考 信号资源对所述服务小区的信道质量进行测量的结果。
根据第五方面的第四种可能实现的方式, 在第五种可能实现的方式中,
所述判断模块, 还用于根据所述测量结果, 分别判断所述至少一个目标小区 的信道质量与所述服务小区的信道质量的大小; 若所述至少一个目标小区的 信道质量大于所述服务小区的信道质量, 确定所述 UE进行小区切换; 或者, 若所述至少一个目标小区的信道质量与所述服务小区的信道质量的差值大于 预设阈值, 确定所述 UE进行小区切换。
根据第五方面至第五方面的第五种可能实现的方式中任一一种, 在第六 种可能实现的方式中, 所述发送模块, 还用于通过 X2 空口向所述至少一个 目标小区基站发送所述切换请求消息;
对应的, 所述切换请求消息为所述至少一个目标小区基站通过所述 X2 空口发送的消息。
根据第五方面至第五方面的第六种可能实现的方式中任一一种, 在第七 种可能实现的方式中, 所述测量结果为信道质量指示 CQI信息、 参考信号接 收功率 RSRP信息、参考信号接收质量 RSRQ信息及接收信号指示强度 RSSI 信息中至少一个。
根据第五方面的第七种可能实现的方式, 在第八种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套小区 特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果及 所述服务小区的第一测量结果; 其中, 所述至少一个目标小区的第一测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套小区特定参考 信号资源进行信道质量测量的结果;所述服务小区的第一测量结果为所述 UE 根据所述服务小区对应的所述至少一套小区特定参考信号资源进行信道质量 测量的结果。
根据第五方面的第七种可能实现的方式, 在第九种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套用户 特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果及 所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参考 信号资源进行信道质量测量的结果;所述服务小区的第二测量结果为所述 UE
根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道质量 测量的结果。
根据第五方面的第八种可能实现的方式, 在第十种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源还包括: 至少一套用 户特定参考信号资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果 及所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量 结果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参 考信号资源进行信道质量测量的结果; 所述服务小区的第二测量结果为所述 UE根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道 质量测量的结果。
根据第五方面的第十种可能实现的方式,在第十一种可能实现的方式中, 所述测量结果为所述 UE根据预设的事件触发条件进行发送的。
第六方面, 本发明实施例还提供一种基站, 包括:
接收模块, 用于接收服务小区基站发送的切换请求消息; 其中, 所述切 换请求消息包括: 请求切换的 UE, 测量结果及所述测量结果对应的参考信号 资源的标识;所述测量结果包括:所述 UE对所述 UE的至少一个目标小区的 信道质量进行测量的结果; 所述参考信号资源包括: 所述至少一个目标小区 对应的参考信号资源; 每个目标小区对应至少两套参考信号资源, 每套参考 信号资源对应一个预编码信息;
确定模块, 用于所述测量结果确定所述 UE是否进行小区切换; 发送模块, 用于向所述服务小区基站发送切换请求响应消息, 以使所述 服务小区基站根据所述切换请求响应消息对所述 UE进行小区切换。
根据第六方面, 在第六方面的第一种可能实现的方式中, 所述确定模块, 还用于根据所述测量结果对应的参考信号资源的标识、 自身的信道质量测量 结果及对应的参考信号资源的标识, 确定所述 UE切换后的预编码信息或所 述预编码信息对应的参考信号资源标识;
所述发送模块, 还用于将所述预编码信息或所述预编码信息对应的参考 信号资源标识通过所述切换请求响应消息发送至所述服务小区基站, 以使所 述服务小区基站根据所述预编码信息或所述预编码信息对应的参考信号资源
标识对所述 UE进行小区切换。
根据第六方面的第一种可能实现的方式, 在第二种可能实现的方式中, 所述切换请求消息为所述服务小区基站通过 X2空口发送的消息;
所述发送模块, 还用于通过所述 X2 空口将所述预编码信息或所述预编 码信息对应的参考信号资源标识携带在所述切换请求响应消息中发送给所述 服务小区基站。
根据第六方面的第一种或第二种可能实现的方式, 在第三种可能实现的 方式中, 所述测量结果为信道质量指示 CQI信息、 参考信号接收功率 RSRP 信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少 一个。
根据第六方面的第一种至第三种可能实现的方式中任一一种, 在第四种 可能实现的方式中, 所述每个目标小区对应的参考信号资源包括: 至少一套 小区特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果; 所述至少一个目标小区的第一测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套小区特定参考信号资源进行信道质量测量的结果。
根据第六方面的第一种至第三种可能实现的方式中任一一种, 在第五种 可能实现的方式中, 所述每个目标小区对应的参考信号资源包括: 至少一套 用户特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
根据第六方面的第四种可能实现的方式, 在第六种可能实现的方式中, 所述每个目标小区对应的参考信号资源还包括: 至少一套用户特定参考信号 资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
根据第六方面的第六种可能实现的方式, 在第七种可能实现的方式中, 所述发送模块, 还用于根据所述第一测量结果对应的参考信号资源标识、 所
述自身的信道质量结果及对应的参考信号资源标识, 确定所述 UE切换后的 第一预编码信息或所述第一预编码信息对应的参考信号资源标识; 根据所述 第二测量结果对应的参考信号资源标识、 所述自身信道质量结果及对应的参 考信号资源标识, 确定所述 UE切换后的第二预编码信息或所述第二预编码 信息对应的参考信号资源标识;
所述发送模块, 还用于将所述第一预编码信息或所述第一预编码信息对 应的参考信号资源标识和所述第二预编码信息或所述第一预编码信息对应的 参考信号资源标识通过所述切换请求响应消息发送至所述服务小区基站, 以 使所述服务小区基站根据所述第一预编码信息或所述第一预编码信息对应的 参考信号资源标识和所述第二预编码信息或所述第二预编码信息对应的参考 信号资源标识对所述 UE进行小区切换。
第七方面, 本发明实施例还提供一种 UE, 包括: 接收机、 处理器及发送 机;
其中, 所述接收机, 用于接收至少一个目标小区基站发送的参考信号资 源; 其中, 所述参考信号资源包括: 所述至少一个目标小区对应的参考信号 资源; 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一 个预编码信息;
所述处理器, 用于根据所述参考信号资源对所述至少一个目标小区的信 道质量进行测量,获得测量结果及所述测量结果对应的参考信号资源的标识; 所述发送机, 用于将所述测量结果及所述测量结果对应的参考信号资源 的标识发送给服务小区基站, 以使所述服务小区基站根据所述测量结果确定 所述 UE是否进行小区切换, 若是, 所述服务小区基站向所述至少一个目标 小区基站发送切换请求消息, 并根据所述至少一个目标小区基站返回的切换 请求响应消息对所述 UE进行小区切换。
根据第七方面, 在第一种可能实现的方式中, 所述接收机, 还用于在接 收所述至少一个目标小区基站发送的参考信号资源之前, 接收所述服务小区 基站发送的所述每个目标小区的参考信号资源个数、 所述每套参考信号资源 所对应的配置信息; 其中, 所述每套参考信号资源所对应一个配置信息, 所 述配置信息包括: 天线端口的数量、 天线端口的端口号、 导频序列及时频资 源位置中至少一个。
根据第七方面或第七方面的第一种可能实现的方式, 在第二种可能实现 的方式中, 所述接收机, 还用于接收所述至少一个目标小区基站采用时分方 式发送的所述至少两套参考信号资源。
根据第七方面的第二种可能实现的方式, 在第三种可能实现的方式中, 所述每套参考信号资源对应一个测量配置; 所述测量配置包括: 测量激活的 起始***帧号 SFN、 子帧号、 测量周期、 测量间隔;
所述处理器, 还用于根据所述参考信号资源对应的测量配置对所述至少 一个目标小区的信道质量进行测量。
根据第七方面的第三种可能实现的方式, 在第四种可能实现的方式中, 所述处理器, 还用于在所述发送机将所述测量结果及所述测量结果对应的参 考信号资源的标识发送给所述服务小区基站之前, 对所述测量结果进行时域 滤波, 以对所述测量结果进行更新。
根据第七方面至第七方面的第四种可能实现的方式中任一一种, 在第五 种可能实现的方式中, 所述接收机, 还用于接收所述服务小区基站发送的所 述服务小区对应的参考信号资源; 其中, 所述服务小区对应的参考信号资源 包括: 至少两套参考信号资源, 每套参考信号资源对应一个预编码信息; 所述处理器, 还用于在所述发送机将所述测量结果及所述测量结果对应 的参考信号资源的标识发送给所述服务小区基站之前, 根据所述服务小区对 应的参考信号资源对所述服务小区的信道质量进行测量, 获得所述服务小区 的测量结果。
根据第七方面的第五种可能实现的方式, 在第六种可能实现的方式中, 所述测量结果为信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参 考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少一个。
根据第七方面的第六种可能实现的方式, 在第七种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套小区 特定参考信号资源;
所述处理器, 还用于分别根据所述每个目标小区对应的所述至少一套小 区特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得所 述至少一个目标小区的第一测量结果; 根据所述服务小区对应的所述至少一 套小区特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述服
务小区的第一测量结果。
根据第七方面的第六种可能实现的方式, 在第八种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套用户 特定参考信号资源;
所述处理器, 还用于分别根据所述每个目标小区对应的所述至少一套用 户特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得所 述至少一个目标小区的第二测量结果; 根据所述服务小区对应的所述至少一 套用户特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述服 务小区的第二测量结果。
根据第七方面的第七种可能实现的方式, 在第九种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源还包括: 至少一套用 户特定参考信号资源;
所述处理器, 还用于分别根据所述每个目标小区对应的所述至少一套用 户特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得所 述至少一个目标小区的第二测量结果; 根据所述服务小区对应的所述至少一 套用户特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述服 务小区的第二测量结果。
根据第七方面的第九种可能实现的方式, 在第十种可能实现的方式中, 所述发送机, 还用于根据预设的事件触发条件将所述测量结果发送给所述服 务小区基站。
第八方面, 本发明实施例还提供一种基站, 包括: 接收机、 处理器及发 送机;
其中, 所述接收机, 用于接收 UE发送的测量结果及所述测量结果对应 的参考信号资源的标识; 其中, 所述测量结果包括: 所述 UE根据至少一个 目标小区基站发送的参考信号资源对所述至少一个目标小区的信道质量进行 测量的结果; 所述参考信号资源包括: 所述至少一个目标小区对应的参考信 号资源, 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应 一个预编码信息;
所述处理器, 用于根据所述测量结果确定所述 UE是否进行小区切换; 所述发送机, 用于若根据所述测量结果确定所述 UE进行小区切换, 向
所述至少一个目标小区基站发送切换请求消息;
所述处理器, 还用于根据所述至少一个目标小区基站返回的切换请求响 应消息对所述 UE进行小区切换。
根据第八方面, 在第八方面的第一种可能实现的方式中, 所述发送机, 还用于在所述接收机接收 UE发送的测量结果及所述测量结果对应的参考信 号资源的标识之前, 将所述每个目标小区基站的参考信号资源个数、 所述每 套参考信号资源所对应的配置信息通知给所述 UE, 以使所述 UE根据所述每 个目标小区基站的参考信号资源个数、 所述每套参考信号资源所对应的配置 信息接收所述每个目标小区对应的参考信号资源; 其中, 所述每套参考信号 资源所对应的配置信息包括: 天线端口的数量、 天线端口的端口号, 导频序 列及时频资源位置中至少一个。
根据第八方面或第八方面的第一种可能实现的方式, 在第二种可能实现 的方式中, 所述每套参考信号资源对应一个测量配置; 所述测量配置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期及测量间隔;
所述测量结果包括: 所述 UE根据所述参考信号资源对应的测量配置对 所述至少一个目标小区的信道质量进行测量的结果。
根据第八方面的第二种可能实现的方式, 在第三种可能实现的方式中, 所述测量结果为所述 UE进行时域滤波之后的结果。
根据第八方面至第八方面的第三种可能实现的方式中任一一种, 在第四 种可能实现的方式中, 所述发送机, 还用于向所述 UE发送服务小区对应的 参考信号资源; 其中, 所述服务小区对应的参考信号资源包括: 至少两套参 考信号资源; 每套参考信号资源对应一个预编码信息;
对应的, 所述测量结果还包括: 所述 UE根据所述服务小区对应的参考 信号资源对所述服务小区的信道质量进行测量的结果。
根据第八方面的第四种可能实现的方式, 在第五种可能实现的方式中, 所述处理器, 还用于根据所述测量结果, 分别判断所述至少一个目标小区的 信道质量与所述服务小区的信道质量的大小; 若所述至少一个目标小区的信 道质量大于所述服务小区的信道质量, 确定所述 UE进行小区切换; 或者, 若所述至少一个目标小区的信道质量与所述服务小区的信道质量的差值大于 预设阈值, 确定所述 UE进行小区切换。
根据第八方面至第八方面的第五种可能实现的方式中任一一种, 在第六 种可能实现的方式中, 所述发送机, 还用于通过 X2 空口向所述至少一个目 标小区基站发送所述切换请求消息;
对应的, 所述切换请求响应消息为所述至少一个目标小区基站通过所述 X2空口发送的消息。
根据第八方面至第八方面的第六种可能实现的方式中任一一种, 在第七 种可能实现的方式中, 所述测量结果为信道质量指示 CQI信息、 参考信号接 收功率 RSRP信息、参考信号接收质量 RSRQ信息及接收信号指示强度 RSSI 信息中至少一个。
根据第八方面的第七种可能实现的方式, 在第八种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套小区 特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果及 所述服务小区的第一测量结果; 其中, 所述至少一个目标小区的第一测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套小区特定参考 信号资源进行信道质量测量的结果;所述服务小区的第一测量结果为所述 UE 根据所述服务小区对应的所述至少一套小区特定参考信号资源进行信道质量 测量的结果。
根据第八方面的第七种可能实现的方式, 在第九种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源包括: 至少一套用户 特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果及 所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参考 信号资源进行信道质量测量的结果;所述服务小区的第二测量结果为所述 UE 根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道质量 测量的结果。
根据第八方面的第八种可能实现的方式, 在第十种可能实现的方式中, 所述每个目标小区及所述服务小区对应的参考信号资源还包括: 至少一套用 户特定参考信号资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果 及所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量 结果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参 考信号资源进行信道质量测量的结果; 所述服务小区的第二测量结果为所述 UE根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道 质量测量的结果。
根据第八方面的第十种可能实现的方式,在第十一种可能实现的方式中, 所述测量结果为所述 UE根据预设的事件触发条件进行发送的。
第九方面, 本发明实施例还提供一种基站, 包括: 接收机、 处理器及发 送机;
其中, 所述接收机, 用于接收服务小区基站发送的切换请求消息; 其中, 所述切换请求消息包括:请求切换的 UE, 测量结果及所述测量结果对应的参 考信号资源的标识;所述测量结果包括:所述 UE对所述 UE的至少一个目标 小区的信道质量进行测量的结果; 所述参考信号资源包括: 所述至少一个目 标小区对应的参考信号资源; 每个目标小区对应至少两套参考信号资源, 每 套参考信号资源对应一个预编码信息;
所述处理器, 用于根据所述测量结果确定所述 UE是否进行小区切换; 所述发送机, 用于向所述服务小区基站发送切换请求响应消息, 以使所 述服务小区基站根据所述切换请求响应消息对所述 UE进行小区切换。
根据第九方面, 在第九方面的第一种可能实现的方式中, 所述处理器, 还用于根据所述测量结果对应的参考信号资源的标识、 自身的信道质量测量 结果及对应的参考信号资源的标识, 确定所述 UE切换后的预编码信息或所 述预编码信息对应的参考信号资源标识;
所述发送机, 还用于将所述预编码信息或所述预编码信息对应的参考信 号资源标识通过所述切换请求响应消息发送至所述服务小区基站, 以使所述 服务小区基站根据所述预编码信息或所述预编码信息对应的参考信号资源标 识对所述 UE进行小区切换。
根据第九方面的第一种可能实现的方式, 在第二种可能实现的方式中, 所述切换请求消息为所述服务小区基站通过 X2空口发送的消息;
所述发送机, 还用于通过所述 X2 空口将所述预编码信息或所述预编码
信息对应的参考信号资源标识携带在所述切换请求响应消息中发送给所述服 务小区基站。
根据第九方面的第一种或第二种可能实现的方式, 在第三种可能实现的 方式中, 所述测量结果为信道质量指示 CQI信息、 参考信号接收功率 RSRP 信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少 一个。
根据第九方面的第一种至第三种可能实现的方式中任一一种, 在第四种 可能实现的方式中, 所述每个目标小区对应的参考信号资源包括: 至少一套 小区特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果; 所述至少一个目标小区的第一测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套小区特定参考信号资源进行信道质量测量的结果。
根据第九方面的第一种至第三种可能实现的方式中任一一种, 在第五种 可能实现的方式中, 所述每个目标小区对应的参考信号资源包括: 至少一套 用户特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
根据第九方面的第四种可能实现的方式, 在第六种可能实现的方式中, 所述每个目标小区对应的参考信号资源还包括: 至少一套用户特定参考信号 资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
根据第九方面的第六种可能实现的方式, 在第七种可能实现的方式中, 所述处理器, 还用于根据所述第一测量结果对应的参考信号资源标识、 所述 自身的信道质量结果及对应的参考信号资源标识, 确定所述 UE切换后的第 一预编码信息或所述第一预编码信息对应的参考信号资源标识; 根据所述第 二测量结果对应的参考信号资源标识、 所述自身信道质量结果及对应的参考 信号资源标识, 确定所述 UE切换后的第二预编码信息或所述第二预编码信
息对应的参考信号资源标识;
所述发送机, 还用于将所述第一预编码信息或所述第一预编码信息对应 的参考信号资源标识和所述第二预编码信息或所述第一预编码信息对应的参 考信号资源标识通过所述切换请求响应消息发送至所述服务小区基站, 以使 所述服务小区基站根据所述第一预编码信息或所述第一预编码信息对应的参 考信号资源标识和所述第二预编码信息或所述第二预编码信息对应的参考信 号资源标识对所述 UE进行小区切换。
本发明实施例小区切换方法、 用户设备及基站, 由于每套参考信号资源 对应一个预编码信息, 而每个目标小区对应至少两套参考信号资源,通过 UE 的至少一个目标小区的对应不同预编码信息的多套参考信号资源分别对该至 少一个目标小区的信道质量进行测量所获得的测量结果, 并根据该测量结果 确定该 UE是否进行切换,及该 UE切换至目标小区后的预编码信息,从而可 使得该 UE切换后能在该目标小区的公共信道的覆盖范围内。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在 不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。 图 1为本发明实施例一所提供的小区切换方法的流程图;
图 2为本发明实施例二提供的小区切换方法的流程图;
图 3为本发明实施例三所提供的小区切换方法的流程图;
图 4为本发明实施例三所提供的另一小区切换方法的流程图;
图 5为本发明实施例四所提供的小区切换方法的流程图;
图 6为本发明实施例五所提供的小区切换方法的流程图;
图 7为本发明实施例六所提供的小区切换方法的流程图;
图 8为本发明实施例七所提供的小区切换方法的流程图;
图 9为本发明实施例八所提供的小区切换方法的流程图;
图 10为本发明实施例九所提供的小区切换方法的流程图;
图 11为本发明实施例十所提供的 UE的结构;
图 12为本发明实施例十一所提供的基站的结
图 13为本发明实施例十二所提供的基站的结
图 14为本发明实施例十三所提供的 UE的结;
图 15为本发明实施例十四所提供的基站的结
图 16为本发明实施例十五所提供的基站的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于 本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动前提下所获 得的 实施例, 都属于本发明保护的范围。
图 1为本发明实施例一所提供的小区切换方法的流程图。 本实施例的方 法适用于 UE进行小区切换的情况。 对于待进行小区切换的 UE来说, 该 UE 具有一个服务小区基站, 具有至少一个目标小区基站。 该目标小区基站可以 为 X2口广播的或网络配置的邻区小区列表中的基站。该方法由 UE执行。如 图 1所示, 该本实施例的方法具体包括如下歩骤:
歩骤 101、 接收至少一个目标小区基站发送的参考信号资源。
其中, 该参考信号资源包括: 该至少一个目标小区对应的参考信号资源; 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编 码信息。
每个目标小区的每套参考信号资源可以为对应不同的预编码信息的不同 类型的参考信号资源, 还可以是对应不同的预编码信息的相同类型的参考信 号资源。 每套参考信号资源对应一个预编码信息, 而一个预编码信息对应一 定的天线波束覆盖下倾角。 该一个预编码信息具体可以为一个预编码矩阵。 在本发明实施例中, 该服务小区基站和目标小区基站的发射天线可以为二维 天线。 在具有二维天线的***中, 每个预编码信息对应该二维天线的每列的 天线阵子的一套加权因子。
该服务小区基站可以是宏站或微站。 若服务小区基站为宏站, 对应的, 该 UE 的目标小区基站可以为微站, 那么, 该小区切换方法实际为将该 UE 从该宏站服务的宏小区切换至该微站服务的微小区。
歩骤 102、 根据该参考信号资源对该至少一个目标小区的信道质量进行 测量, 获得测量结果及该测量结果对应的参考信号资源的标识。
该 UE具有至少一个目标小区, 每个目标小区具有至少两套参考信号资 源, 一套参考信号资源对应一个预编码信息, 而一个预编码信息又对应一定 的波束下倾角。 该 UE根据该参考信号资源对该至少一个目标小区的信道质 量进行测量, 分别根据每个目标小区的参考信号资源对该每个目标小区的公 共信道覆盖范围中至少两个预编码信息对应的下倾角的覆盖范围, 进行信道 歩骤 103、 将该测量结果及该测量结果对应的参考信号资源的标识发送 给该服务小区基站, 以使该服务小区基站根据该测量结果确定该 UE是否进 行小区切换, 若是, 该服务小区基站向该至少一个目标小区基站发送切换请 求消息, 并根据该至少一个目标小区基站返回的切换请求响应消息对该 UE 进行小区切换。
那么, 该测量结果中, 一个目标小区对应至少两套的测量结果。 该测量 结果对应的参考信号资源的标识表示获得该测量结果所采用的参考信号资源 的标识, 该参考信号资源的标识可以是该参考信号资源在一个目标小区对应 的至少两套参考信号资源中的标识。 该标识与预编码信息所使用的加权因子 对应, 还可以与预编码信息对应。 该标识, 具体可以通过参考信号资源的编 号表不。
本实施例的方案, UE根据至少一个目标小区的对应不同预编码信息的多 套参考信号资源分别对该至少一个目标小区的信道质量进行测量, 并将该测 量结果及该测量结果对应的参考信号资源的标识发送至服务小区基站, 该服 务小区基站根据该测量结果及该测量结果对应的参考信号资源的标识确定该 UE是否进行切换及该 UE切换至目标小区的预编码信息。 由于每套参考信号 资源对应一个预编码信息, 而一个预编码信息对应一定的波束下倾角, 每个 目标小区对应至少两套参考信号资源, 因而采用本实施例方案根据该参考信 号资源对 UE进行小区切换,可使得该 UE所切换后的波束在该目标小区的公
共信道的覆盖波束内, 从而可提高该 UE小区切换后该目标小区的公共信道 覆盖范围。
实施例二
本实施例还提供一种小区切换方法。 图 2为本发明实施例二提供的小区 切换方法的流程图。 如图 2所示, 该方法, 在上述实施例方案中歩骤 101中 接收至少一个目标小区基站发送的参考信号资源之前, 还包括:
歩骤 201、 接收该服务小区基站发送的该每个目标小区的参考信号资源 个数、 该每套参考信号资源所对应的配置信息。
该每套参考信号资源所对应一个配置信息, 该配置信息包括: 天线端口 的数量、 天线端口的端口号、 导频序列及时频资源位置中至少一个。
具体地, 该天线端口指用于传输的逻辑端口, 与物理天线不存在定义上 的一一对应关系。 该天线端口由用于该天线的参考信号资源来定义。 也就是 说, 该参考信号资源是某一逻辑端口的名字。 需要说明的是, 对于不同的协 议版本, 可能具有不同类型的参考信号资源, 而该不同的参考信号资源对应 不同的天线端口。 举例来说: 小区特定参考信号 (Cell-specific Reference Signal, 简称 CRS ) 资源在天线端口 {0}、 {0,1 }或 {0,1,2,3 }上传输; 用户特定 的参考信号 (UE-specific Reference Signal, 简称 UE-RS ) 至少包括解调参考 信号 (Demodulation Reference Signal, 简称 DMRS ) 和 CSI-RS (Channel State Information Reference Signal, 简称 CSI-RS)两种, 其中 DMRS资源在天线端口 {5}、 {7 }、 { 8}或 {7,8,...,v+6}上传输, 其中 v为层数, 最大为 8 ; 信道状态信息 参考信号 (Channel State Information Reference Signal, 简称 CSI-RS)资源在天线 端口 { 15}、 { 15, 16}、 { 15,16,17, 18}或 { 15,16,17,18, 19,20,21,22}上传输。
该 UE接收该每套参考信号资源所对应的配置信息, 分别根据该每套参 考信号资源所对应的配置信息接收该参考信号资源, 以根据该不同类型的参 考信号资源进行小区信道质量的测量。
进一歩地, 如上所述的歩骤 101 中接收至少一个目标小区基站发送的参 考信号资源, 具体包括:
歩骤 202、 接收该至少一个目标小区基站采用时分方式发送的该至少两 套参考信号资源。
可选地, 每个无线子帧发送一套参考信号资源。 当参考信号资源套数为
二时, 即采用第一套参考信号资源和第二套参考信号资源在每相邻的两个子 帧交替发送的方式。 优选的, 上述方案中该每套参考信号资源对应一个测量 配置; 该测量配置包括: 测量激活的起始***帧号 (System Frame Number, 简称 SFN) 、 子帧号、 测量周期、 测量间隔等。
具体地, 由于每套参考信号资源是按无线子帧进行发送的。 此处每套参 考信号资源所对应的测量配置, 实际为该 UE对该每套参考信号资源进行测 量所需的配置信息。 其中, 该测量激活的起始 SFN可以是该 UE在接收到该 每套参考信号资源之后, 开始进行测量的 SFN, 也就是无线帧号。 该子帧号 为开始进行测量时对应的该 SFN的子帧号, 即该 UE开始进行测量的具体子 帧号。
同一目标小区的不同参考信号资源具有不同的测量配置。 该 UE根据每 套参考信号资源对应的配置参数分别进行信道质量测量, 可保证每个信道质 量的测量均基于相同的参考信号资源号,从而能确保每个测量结果的准确性。 需要说明的是, 该测量配置可预先存储在该 UE侧, 也可以是由该服务小区 基站下发配置至该 UE。
上述方案中歩骤 102根据该参考信号资源对该至少一个目标小区的信道 质量进行测量, 具体包括:
歩骤 203、 根据该参考信号资源对应的测量配置对该至少一个目标小区 的信道质量进行测量。
进一歩地, 在如上所述方案中歩骤 103将获得的测量结果及该测量结果 对应的参考信号资源的标识发送给该服务小区基站之前, 还包括:
歩骤 204、 对该测量结果进行时域滤波, 以对该测量结果进行更新。 具体地, 该 UE对该测量结果进行时域滤波, 可使得该测量结果更稳定, 从而对该测量结果进行更新。
该时域滤波实际为时域滑动平均滤波。 对该每套参考信号资源的测量结 果进行时域滤波, 例如可以是针对每套参考信号资源根据其对应的测量配置 中的测量时序参数, 采用如下所述公式(1 )进行层 3 (Layer 3 , 简称 L3 )滤 波和测量结果的更新。
Fn ^ (l - ai) - Fn_1 + a Mn ( 1 )
在该公式(1 ) 中, F„表示本次滤波更新后的测量结果, 表示上一次滤
波后的测量结果, M„表示本次的瞬时测量结果, Ω,表示本次滤波的滤波因子。 需要说明的是, 在本实施例中, 还可预先设置一个测量时间窗, 在该测 量时间窗内, UE根据该至少一个目标小区的至少两套参考信号资源进行信道 质量测量, 而在该测量时间窗外, UE根据该至少一个目标小区切换后更新的 预编码信息对应的参考信号资源进行信道质量测量。
本实施例方案在上述方案的基础上, 由于每套参考信号资源对应一个配 置信息, 而每个配置对应一个下倾角。 每套参考信号资源进行单独的测量配 置和时域滤波, 基于上述, 本实施例能使得所有 UE通过选择最优或较优的 下倾角来完成小区覆盖范围的灵活调整和伸缩。
实施例三
本实施例还提供一种小区切换方法。 图 3为本发明实施例三所提供的小 区切换方法的流程图。 在上述实施例方案中, 该方法还包括:
歩骤 301、 接收该服务小区基站发送的该服务小区对应的参考信号资源。 该服务小区对应的参考信号资源包括: 至少两套参考信号资源, 每套参 考信号资源对应一个预编码信息。
需要说明的是, 该歩骤 301与歩骤 101并无绝对的时序关系, 可以相同 执行, 也可先后执行均可。
该方法在上述方案歩骤 103中将获得的测量结果发送给该服务小区基站 之前, 还包括:
根据该服务小区对应的参考信号资源对该服务小区的信道质量进行测 量, 获得该服务小区的测量结果。
优选的, 上述测量结果为信道质量指示 (Channel quality indicator, 简称
CQI)信息、参考信号接收功率(Reference Signal Receiving Power,简称 RSRP) 信息、 参考信号接收质量 (Reference Signal Receiving Quality, 简称 RSRQ) 信息及接收信号强度指示 (Received Signal Strength Indication, 简称 RSSI) 信息中至少一个。
具体地, 该测量结果包括: 该至少一个目标小区的测量结果及该服务小 区的测量结果, 也就是说, 该至少一个目标小区的测量结果及该服务小区的 测量结果均可以为 CQI信息、 RSRP信息、 RSRQ信息及 RSSI信息中至少一 个。
进一歩地, 上述方案中该每个目标小区及该服务小区对应的参考信号资 源具体包括: 至少一套小区特定参考信号资源。
具体地, 该小区特定参考信号资源可以为 CRS资源, 还可以为其他类型 的小区特定的参考信号资源。
如图 3所示, 上述歩骤 102中根据该参考信号资源对该至少一个目标小 区的信道质量进行测量, 具体包括:
歩骤 302、 分别根据该每个目标小区对应的该至少一套小区特定参考信 号资源对该至少一个目标小区的信道质量进行测量, 获得该至少一个目标小 区的第一测量结果。
上述根据该服务小区对应的参考信号资源对该服务小区的信道质量进行 测量, 具体包括:
歩骤 303、 根据该服务小区对应的该至少一套小区特定参考信号资源对 该服务小区的信道质量进行测量, 获得该服务小区的第一测量结果。
该至少一个目标小区的测量结果包括: 该至少一个目标小区的第一测量 结果; 该服务小区的测量结果包括: 该服务小区的第一测量结果。
根据对该小区特定参考信号的测量获得的测量结果对该 UE进行小区切 换, 实际在保证各目标小区公共信道覆盖的基础上, 为该 UE选择一个目标 小区, 从而更好地保证切换后目标小区的公共信道覆盖。
本实施例还提供一种小区切换方法。 图 4为本发明实施例三所提供的另 一小区切换方法的流程图。 可选的, 如上所述的该每个目标小区及该服务小 区对应的参考信号资源包括: 至少一套用户特定参考信号资源。
该用户特定参考信号资源例如可以为 CSI-RS资源,可以为 UE-RS资源, 还可以为任意其他用户特定的参考信号资源。 同一小区下的不同 UE具有不 同的参考信号资源。
如图 4所示, 上述歩骤 102根据该参考信号资源对该至少一个目标小区 的信道质量进行测量, 包括:
歩骤 401、 分别根据该每个目标小区对应的该至少一套用户特定参考信 号资源对该至少一个目标小区的信道质量进行测量, 获得该至少一个目标小 区的第二测量结果。
上述根据该服务小区对应的参考信号资源对该服务小区的信道质量进行
测量, 包括:
歩骤 402、 根据该服务小区对应的至少一套用户特定参考信号资源对该 服务小区的信道质量进行测量, 获得该服务小区的第二测量结果。
该至少一个目标小区的测量结果包括: 该至少一个目标小区的第二测量 结果; 该服务小区的测量结果包括: 该服务小区的第二测量结果。 由于不同 UE 具有不同的参考信号, 因而根据该用户特定参考信号进行信道质量的测 量, 可获得该 UE对应的具有最优信道质量的目标小区, 而由于不同的参考 信号资源分别对应一个预编码信息, 可根据该不同的预编码信息为该 UE选 择最优的小区下倾角波束。
本实施例方案, 通过对小区特定参考信号进行小区信道质量的测量, 可 更好地保证该 UE切换后目标小区的公共信道覆盖, 还通过对用户特定参考 信号资源的测量, 为该 UE选择切换后的最优下倾角波束。
实施例四
本实施例还提供一种小区切换方法。 图 5为本发明实施例四所提供的小 区切换方法的流程图。 可选的, 该每个目标小区及该服务小区对应的参考信 号资源还包括: 至少一套用户特定参考信号资源;
如图 5所示, 上述歩骤 102根据该参考信号资源对该至少一个目标小区 的信道质量进行测量, 还包括:
歩骤 501、 分别根据该每个目标小区对应的该至少一套用户特定参考信 号资源对该至少一个目标小区的信道质量进行测量, 获得该至少一个目标小 区的第二测量结果。
上述根据该服务小区对应的参考信号资源对该服务小区的信道质量进行 测量, 还包括:
歩骤 502、 根据该服务小区对应的该至少一套用户特定参考信号资源对 该服务小区的信道质量进行测量, 获得该服务小区的第二测量结果。
该至少一个目标小区的测量结果包括: 该至少一个目标小区的第一测量 结果及第二测量结果; 该服务小区的测量结果包括: 该服务小区的第一测量 结果及第二测量结果。
在上述实施例方案的基础上, 上述方案中歩骤 103将获得的测量结果及 该测量结果对应的参考信号资源的标识发送给该服务小区基站, 具体包括:
根据预设的事件触发条件将该测量结果发送给该服务小区基站。
在本实施例中, 根据预设的事件触发条件进行测量结果的发送, 即根据 该预设事件的触发条件是否满足来触发和结束测量结果的周期发送。
如上所述的该预设事件触发条件包括: 同***事件触发条件或异***事 件触发条件。
具体地, 该同***指的是该服务小区基站与该目标小区基站具有相同类 型的通信***。
在本实施例方案中, 该同***的事件触发条件包括以下五个事件触发条 件中任一一种:
其中, 该第一事件触发条件, 为该服务小区的第一测量结果大于等于第 一预设门限, 且该服务小区的第二测量结果大于等于第二预设门限。
第二事件触发条件,为该服务小区的第一测量结果小于该第一预设门限, 或该服务小区的第二测量结果小于该第二预设门限。
第三事件触发条件, 为该至少一个目标小区的第一测量结果大于等于该 服务小区的第一测量结果, 且大于等于该第一预设门限; 该服务小区的第二 测量结果大于等于该第二预设门限。
第***触发条件, 为该至少一个目标小区的第一测量结果大于等于该 第一预设门限, 且该至少一个目标小区的第二测量结果大于等于该第二预设 门限。
第五事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于 该第一预设门限, 且该至少一个目标小区的第二测量结果大于等于该第二预 设门限; 该服务小区的第一测量结果小于第三预设门限, 或该服务小区的第 二测量结果小于第四预设门限。
具体地, 该第一事件触发条件包括接入条件和离开条件。 该服务小区的 第一测量结果可表示为 M 该第二测量结果表示为 M , 该第一预设门限表 示为 Thr气 该第二预设门限表示为7 ""e 。
因此, 该第一事件触发条件的进入条件可通过如下公式 (2) 表示: Msl≥ Thresh^ and Ms2≥ Thresh2 . 该第一事件触发条件的离开条件可通过如下公式 (3 ) 表示:
Msl < Thresh^ or Ms2 < Thresh2
在本实施例中, 该第一事件触发条件还可以通过服务小区的第一测量结 果及第二测量结果与预设的小区重选滞后参数的差值与该第一预设门限及第 二预设门限相比较。 该小区重选滞后 (Hysteresis ) 参数, 表示为 H^s。
对应的, 上述公式 (2) 还可表示为如下公式 (4 ) :
Msl Hys≥ Thresh^ and Ms2 Hys≥ Thresh2 ( 4 ) . 上述公式 (3 ) 可表示为如下公式 (5 ) :
Msl Hys < Thresh^ or Ms2 Hys < Thresh2 (5 ) 需要说明的是, 在本实施例中, 与该第一测量结果相比较的小区重选滞 后参数, 还可以与该第二测量结果比较的小区重选滞后参数不同。 若不同, 贝 IJ , 分别可表示为 ^及 ^。
在本实施例中, 该第一事件触发条件至该第五事件触发条件是按照事件 优先级顺序进行排列的事件条件。 前一级的事件触发条件的离开条件即为后 续事件触发条件的接入条件。 具体来说, 若该 UE根据测量获得的测量结果, 确定对应该第一事件触发条件, 则根据该第一事件触发条件采用事件触发发 送方式将该测量结果周期性发送至该服务小区基站。 若该测量结果不对应该 第一事件触发条件, 则继续判定是否属于第二事件触发条件。
优选的, 上述异***事件触发条件包括以下任一一种:
第六事件触发条件, 为该至少一个目标小区的第一测量结果大于等于该 服务小区的第一测量结果, 且大于等于该第一预设门限, 该服务小区的第二 测量结果大于等于该第二预设门限;
第七事件触发条件, 为该至少一个目标小区的第一测量结果大于等于该 第一预设门限, 该服务小区的第二测量结果大于等于该第二预设门限。
本实施例方案还通过具体的该测量结果发送方式对上述实施例进行具体 限定, 可更好地保证该 UE进行小区切换。
需要说明的是, 本实施例方案中该 UE还可以直接按照预设周期进行周 期发送。
实施例五
本发明实施例还提供一种小区切换方法。 图 6为本发明实施例五所提供 的小区切换方法的流程图。 该方法由服务小区基站执行。 该服务小区基站可 以是宏站或微站。 若该服务小区为宏站, 对应的, 该 UE的目标小区基站可
以为微站, 那么, 该小区切换方法实际为将该 UE从该宏站服务的宏小区切 换至该微站服务的微小区。 如图 6所示, 该本实施例的方法具体包括如下歩 骤:
歩骤 601、接收 UE发送的测量结果及该测量结果对应的参考信号资源的 标识。
其中, 该测量结果包括: 该 UE根据至少一个目标小区基站发送的参考 信号资源对该至少一个目标小区的信道质量进行测量的结果。 该参考信号资 源包括: 该至少一个目标小区对应的参考信号资源, 每个目标小区对应至少 两套参考信号资源, 每套参考信号资源对应一个预编码信息。
具体地, 该 UE具有至少一个目标小区, 一套参考信号资源对应一个预 编码信息, 每个目标小区配置至少两套参考信号资源, 以使该 UE根据对应 的参考信号资源对每个目标小区的公共信道覆盖范围中至少两个下倾角对应 的覆盖范围, 进行信道质量测量。 每个目标小区的参考信号资源可以是相同 类型的参考信号上作用不同的加权因子, 从对应不同的预编码信息, 也可以 是不同类型的参考信号上作用不同的加权因子,从而对应不同的预编码信息。
在本发明实施例中, 该服务小区基站和每个目标小区基站的发射天线可 以为二维天线。 在该具有二维天线的***中, 每个预编码信息对应该二维天 线每列天线阵子的一套加权因子。
UE 根据该至少一个目标小区对应的参考信号资源对该至少一个目标小 区的信道质量进行测量实际是, 分别根据每个目标小区对应的至少两套参考 信号资源对该每个目标小区的信道质量进行测量。 那么, 该测量结果中, 一 个目标小区对应至少两套的测量结果。 该测量结果对应的参考信号资源的标 识表示获得该测量结果所采用的参考信号资源的标识, 该参考信号资源的标 识可以是该参考信号资源在一个目标小区对应的至少两套参考信号资源中的 标识。 该标识与所使用的不同加权因子对应, 还可以与下预编码信息对应。
歩骤 602、 根据该测量结果确定该 UE是否进行小区切换, 若是, 向该至 少一个目标小区基站发送切换请求消息。
根据该测量结果确定该 UE可以进行小区切换, 可以是根据该测量结果 中该 UE的至少一个目标小区对应的信道质量的值分别与预设门限值作比较, 若该测量结果中存在信道质量大于或等于该预设门限的目标小区, 则该 UE
可进行小区切换。 该预设门限值例如可以是根据不同场景中 UE进行正常通 信时, 该 UE所在小区信道质量的平均值进行配置。
根据该测量结果确定该 UE进行小区切换, 还可以是根据该测量结果中 该 UE的至少一个目标小区对应的信道质量与该 UE当前服务的小区的信道质 量进行比较, 若该测量结果中存在信道质量大于或等于该 UE当前服务的小 区的信道质量, 则该 UE可进行小区切换。
该服务小区基站向每个目标小区基站所发送的切换请求消息包括:该 UE 测量所获得的该每个目标小区对应的信道质量、请求切换的 UE,及切换后所 采用的参考信号资源的标识或预编码信息中的至少一个。
歩骤 603、 根据该至少一个目标小区基站返回的切换请求响应消息对该
UE进行小区切换。
该至少一个目标小区实际为接收到服务小区基站所发送的切换请求消息 之后, 每个目标小区基站各自根据自身的信道质量及该切换请求消息中该目 标小区所对应的该 UE所测量的信道质量, 确定该目标小区是否进行该 UE 的小区切换。 对该 UE进行小区切换的目标小区基站向该服务小区基站返回 切换请求响应消息, 该切换请求响应消息指示是否进行小区切换及切换后的 参考信号资源的标识。 该服务小区基站根据接收到的该切换响应消息, 将该 UE切换至该目标小区,而该目标小区发送对应标识的参考信号资源给该 UE。
本实施例的方案, 分别根据对 UE的至少一个目标小区配置的对应不同 预编码信息的多套参考信号资源对该至少一个目标小区的信道质量进行测 量, 并根据所获得的测量结果确定该 UE 是否进行切换, 若是, 根据该 UE 切换至目标小区及应的预编码信息。 由于每套参考信号资源对应一个预编码 信息, 实际指的是, 每套参考信号资源对应该目标小区的公共信道覆盖范围 内的一个下倾角, 而每个目标小区对应至少两套参考信号资源, 因而根据该 参考信号资源对 UE进行小区切换,可使得该 UE切换后的波束在该目标小区 的公共信道的覆盖波束内, 从而可提高该 UE进行小区切换后该目标小区的 公共信道覆盖范围。
实施例六
本实施例还提供一种小区切换方法。 图 7为本发明实施例六所提供的小 区切换方法的流程图。 如图 7所示, 该方法, 在上述实施例方案歩骤 601中
将参考信号资源发送给 UE之前, 还包括:
歩骤 701、 将该每个目标小区的参考信号资源个数、 该每套参考信号资 源所对应的配置信息通知给该 UE。
其具体的通知方式例如可以是通过广播的方式通知, 还可以是通过其他 的方式, 本实施例方案在此不做限定。
该每套参考信号资源所对应的配置信息包括: 天线端口的数量、 天线端 口的端口号, 导频序列及时频资源位置中至少一个。
该服务小区基站将该配置信息发送给该 UE, 以使该 UE根据该配置信息 接收目标小区基站发送的对应不同预编码信息的参考信号资源。
在上述实施例方案中该每套参考信号资源对应一个测量配置, 该测量配 置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期、 测量间隔等。
该测量结果包括: 该 UE根据该参考信号资源对应的测量配置对该至少 一个目标小区的信道质量进行测量的结果。
进一歩地, 如上所述的测量结果为该 UE进行时域滤波之后的结果。 具体地, 该 UE在根据该参考信号资源对应的测量配置对该至少一个目 标小区的信道质量进行测量之后, 还需对获得的测量结果进行时域滤波, 以 获得稳定的测量结果。
优选的, 上述方案所述的方法还包括:
歩骤 702、 向该 UE发送服务小区对应的参考信号资源, 该服务小区对应 的参考信号资源包括: 至少两套参考信号资源, 其中, 每套参考信号资源对 应一个预编码信息。
对应的, 该测量结果还包括: 该 UE根据该服务小区对应的参考信号资 源对该服务小区的信道质量进行测量的结果。
进一歩地, 上述实施例方案中的, 在歩骤 602根据该测量结果确定该 UE 是否进行小区切换包括:
歩骤 703、 根据该测量结果, 分别判断该至少一个目标小区的信道质量 与该服务小区的信道质量的大小;
歩骤 704、 若该至少一个目标小区的信道质量大于该服务小区的信道质 量, 确定该 UE进行小区切换; 或者,
若该至少一个目标小区的信道质量与该服务小区的信道质量的差值大于
预设阈值, 确定该 UE进行小区切换。
具体地, 该服务小区基站确定该 UE是否进行小区切换实际是判定该目 标小区基站的测量结果是否大于该服务小区基站的信道质量, 若是, 即确定 该 UE可进行小区切换。
进一歩地, 上述方案中, 歩骤 602向该至少一个目标小区基站发送切换 请求消息, 具体包括:
歩骤 705、通过 X2空口向该至少一个目标小区基站发送该切换请求消息。 对应的, 该切换请求响应消息为该至少一个目标小区基站通过该 X2 空 口发送的消息。
优选的, 该测量结果为 CQI信息、 RSRP信息、 RSRQ信息及 RSSI信息 中至少一个。
进一歩地, 如上所述的该每个目标小区及该服务小区对应的参考信号资 源包括: 至少一套小区特定参考信号资源。
对应的, 该测量结果包括: 该至少一个目标小区的第一测量结果及该服 务小区的第一测量结果; 其中, 该至少一个目标小区的第一测量结果为该 UE 分别根据该每个目标小区对应的该至少一套小区特定参考信号资源对该至少 一个目标小区的信道质量进行测量的结果; 该服务小区的第一测量结果为该 UE根据该服务小区对应的该至少一套小区特定参考信号资源对该服务小区 的信道质量进行测量的结果。
可选的, 该每个目标小区及该服务小区对应的参考信号资源包括: 至少 一套用户特定参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第二测量结果及该服 务小区的第二测量结果; 其中, 该至少一个目标小区的第二测量结果为该 UE 分别根据该每个目标小区对应的该至少一套用户特定参考信号资源进行信道 质量测量的结果; 该服务小区的第二测量结果为该 UE根据该服务小区对应 的该至少一套用户特定参考信号资源进行信道质量测量的结果。
优选地, 该每个目标小区及该服务小区对应的参考信号资源还包括: 至 少一套用户特定参考信号资源。
对应的, 该测量结果还包括: 该至少一个目标小区的第二测量结果及该 服务小区的第二测量结果。 其中, 该至少一个目标小区的第二测量结果为该
UE分别根据该每个目标小区对应的该至少一套用户特定参考信号资源进行 信道质量测量的结果; 该服务小区的第二测量结果为该 UE根据该服务小区 对应的该至少一套用户特定参考信号资源进行信道质量测量的结果。
优选的, 该测量结果为该 UE根据预设的事件触发条件进行发送的。 具体地, 该预设的事件触发条件例如可以为上述实施例所述的事件触发 条件的解释说明, 在此不再赘述。
实施例七
本实施例还提供一种小区切换方法。 该方法由目标小区基站来执行, 该 目标小区基站可以为该 UE所在服务小区相邻小区的基站, 可以为宏站或基 站。 图 8为本发明实施例七所提供的小区切换方法的流程图。 如图 6所示, 该方法, 包括如下:
歩骤 801、 接收服务小区基站发送的切换请求消息, 其中, 该切换请求 消息包括:请求切换的 UE、测量结果及该测量结果对应的参考信号资源的标 识; 该测量结果包括:该 UE对该 UE的至少一个目标小区的信道质量进行测 量的结果。
该参考信号资源包括: 该至少一个目标小区对应的参考信号资源; 每个 目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编码信 息。
歩骤 802、 根据该测量结果确定该 UE是否进行小区切换。
歩骤 803、 若是, 向该服务小区基站发送切换请求响应消息, 以使该服 务小区基站根据该切换请求响应消息对该 UE进行小区切换。
本实施例方案为与上述实施例方案对应的目标小区基站侧的方法实施 例, 其具体的实现过程及有益效果与上述实施例类似, 在此不再赘述。
实施例八
本实施例还提供一种小区切换方法。 图 9为本发明实施例八所提供的小 区切换方法的流程图。 如图 9所示, 本实施例方案, 在上述实施例歩骤 802 该根据该测量结果确定该 UE是否进行小区切换具体包括:
歩骤 901、 根据该测量结果对应的参考信号资源的标识、 自身的信道质 量测量结果及对应的参考信号资源的标识, 确定该 UE切换后的预编码信息 或该预编码信息对应的参考信号资源标识。
此处, 该自身的信道质量测量结果为该目标小区内任一 UE所测量的该 目标小区的信道质量测量结果。
对应的, 歩骤 803中向该服务小区基站发送切换请求响应消息包括: 歩骤 902、 将该预编码信息或该预编码信息对应的参考信号资源标识通 过该切换请求响应消息发送至该服务小区基站, 以使该服务小区基站根据该 预编码信息或该预编码信息对应的参考信号资源标识对该 UE进行小区切换。
优选的, 该切换请求消息为该服务小区基站通过 X2空口发送的消息; 上述歩骤 902将该预编码信息或该预编码信息对应的参考信号资源标识 通过该切换请求响应消息发送至该服务小区基站, 包括:
通过该 X2 空口将该预编码信息或该预编码信息对应的参考信号资源标 识携带在该切换请求响应消息中发送给该服务小区基站。
优选的, 该测量结果为 CQI信息、 RSRP信息、 RSRQ信息及 RSSI信息 中至少一个。
进一歩地, 该每个目标小区对应的参考信号资源包括: 至少一套小区特 定参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第一测量结果; 该至 少一个目标小区的第一测量结果为该 UE分别根据该每个目标小区对应的该 至少一套小区特定参考信号资源进行信道质量测量的结果。
可选的, 该每个目标小区对应的参考信号资源包括: 至少一套用户特定 参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第二测量结果; 该至 少一个目标小区的第二测量结果为该 UE分别根据该每个目标小区对应的该 至少一套用户特定参考信号资源进行信道质量测量的结果。
优选的, 其中, 该每个目标小区对应的参考信号资源还包括: 至少一套 用户特定参考信号资源;
对应的, 该测量结果还包括: 该至少一个目标小区的第二测量结果; 该 至少一个目标小区的第二测量结果为该 UE分别根据该每个目标小区对应的 该至少一套用户特定参考信号资源进行信道质量测量的结果。
更进一歩地,上述歩骤 901中根据该测量结果对应的参考信号资源标识、 自身的信道测量的结果及对应的参考信号资源标识, 确定该 UE切换后的预
编码信息或该预编码信息对应的参考信号资源标识, 具体包括: 根据该第一测量结果对应的参考信号资源标识、 该自身的信道质量结果 及对应的参考信号资源标识, 确定该 UE切换后的第一预编码信息或该第一 预编码信息对应的参考信号资源标识;
根据该第二测量结果对应的参考信号资源标识、 该自身信道质量结果及 对应的参考信号资源标识, 确定该 UE切换后的第二预编码信息或该第二预 编码信息对应的参考信号资源标识。
对应的, 上述歩骤 902中将该预编码信息或该预编码信息对应的参考信 号资源标识通过该切换请求响应消息发送至该服务小区基站具体包括:
将该第一预编码信息或该第一预编码信息对应的参考信号资源标识和该 第二预编码信息或该第二预编码信息对应的参考信号资源标识通过该切换请 求响应消息发送至该服务小区基站, 以使该服务小区基站根据该第一预编码 信息或该第一预编码信息对应的参考信号资源标识和该第二预编码信息或该 第二预编码信息对应的参考信号资源标识对该 UE进行小区切换。
本实施例方案在上述方案的基础上, 还分别通过该每套参考信号资源对 应的第一测量结果和第二测量结果确定该 UE切换后的第一预编码信息或该 第一预编码信息对应的参考信号资源标识和第二预编码信息或该第二预编码 信息对应的参考信号资源标识, 并将该目标小区所选择的该第一预编码信息 或该第一预编码信息对应的参考信号资源标识和该第二预编码信息或该第二 预编码信息对应的参考信号资源标识, 发送至该服务小区基站, 由该服务小 区基站从中选择最优的预编码信息或该预编码信息对应的参考信号资源标 识, 并将该 UE切换至该目标小区的该最优预编码信息所对应的下倾角。
实施例九
本发明实施例还提供一种小区切换方法。图 10为本发明实施例九所提供 的小区切换方法的流程图。 本实施例通过具体的实例进行解释说明。 如图 10 所示, 该方法包括如下:
歩骤 1001、 服务小区基站采用广播方式向 UE发送该每个目标小区的参 考信号资源个数、 每套参考信号资源的配置信息; 其中, 该配置信息包括: 天线端口的数量、天线端口的端口号, 导频序列及时频资源位置中至少一个。
其中, 该参考信号资源包括至少一个目标小区及该服务小区对应的参考
信号资源, 每个目标小区对应两类参考信号资源, 该服务小区对应两类参考 信号资源。 其中, 一类为 CRS资源, 另一类为 CSI-RS资源。 每套参考信号 资源分别对应一个预编码信息。
歩骤 1002、 服务小区基站和目标小区基站采用时分方式将该参考信号资 源发送至该 UE。
歩骤 1003、 该 UE根据该参考信号资源, 及该 UE侧该参考信号资源所 对应的测量配置,对该至少一个目标小区及该服务小区的信道质量进行测量。
该参考信号资源所对应的测量配置实际为该每套参考信号资源所对应的 测量配置。 该测量配置包括: 测量激活的起始 SFN、 子帧号、 测量周期、 测 量间隔等。
歩骤 1004、 该 UE将获得的测量结果, 及该测量结果对应的参考信号资 源的标识发送至该服务小区基站。
该测量结果中包括该至少一个目标小区及该服务小区的第一测量结果、 该至少一个目标小区及该服务小区的第二测量结果。
歩骤 1005、 该服务小区基站根据该至少一个目标小区对应的信道质量测 量结果及该服务小区对应的信道质量测量结果, 确定该 UE是否进行小区切 换。
歩骤 1006、 若是, 该服务小区基站通过 X2空口向该至少一个目标小区 发送切换请求消息, 该切换请求消息包括请求切换的 UE, 该测量结果及该测 量结果对应的参考信号资源的标识。
歩骤 1007、 目标小区基站根据接收到的该切换请求消息中的第一测量结 果, 确定该 UE用于切换的第一预编码信息或该第一预编码信息对应的参考 信号资源标识, 根据该切换请求消息中的第二测量结果确定该 UE用户切换 的第二预编码信息或该第二预编码信息对应的参考信号资源标识。
歩骤 1008、 目标小区基站将该第一预编码信息或该第一预编码信息对应 的参考信号资源标识及该第二预编码信息或该第一预编码信息对应的参考信 号资源标识通过 X2空口携带在切换请求响应消息中发送至该服务小区基站。
歩骤 1009、 该服务小区基站根据切换请求响应消息的该第一预编码信息 或该第一预编码信息对应的参考信号资源标识及该第二预编码信息该第二预 编码信息对应的参考信号资源标识, 结合该至少一个目标小区的信道质量测
量结果, 从该第一预编码信息或该第一预编码信息对应的参考信号资源标识 及该第二预编码信息或该第二预编码信息对应的参考信号资源标识中选择一 个预编码信息。
歩骤 1010、 该服务小区基站根据该选择的预编码信息对该 UE切换后的 小区服务。
本实施例方案通过具体的实例, 对上述实施例进行解释, 其有益效果与 上述实施例类似, 在此不再赘述。
实施例十
本实施例还提供一种 UE。 图 11为本发明实施例十所提供的 UE的结构 示意图。 如图 11所示, 该 UE 1100包括:
接收模块 1101, 用于接收至少一个目标小区基站发送的参考信号资源。 其中, 该参考信号资源包括: 该至少一个目标小区对应的参考信号资源; 每 个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编码
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测量模块 1102, 用于根据该参考信号资源对该至少一个目标小区的信道 质量进行测量, 获得测量结果及该测量结果对应的参考信号资源的标识。
发送模块 1103, 用于将该测量结果及该测量结果对应的参考信号资源的 标识发送给服务小区基站, 以使该服务小区基站根据该测量结果确定该 UE 是否进行小区切换, 若是, 该服务小区基站向该至少一个目标小区基站发送 切换请求消息, 并根据该至少一个目标小区基站返回的切换请求响应消息对 该 UE进行小区切换。
进一歩地, 上述接收模块 1101, 还用于在接收该至少一个目标小区基站 发送的参考信号资源之前, 接收该服务小区基站发送的该每个目标小区的参 考信号资源个数、 该每套参考信号资源所对应的配置信息。 其中, 该每套参 考信号资源所对应一个配置信息, 该配置信息包括: 天线端口的数量、 天线 端口的端口号、 导频序列及时频资源位置中至少一个。
在上述方案的基础上, 其中接收模块 1101, 还用于接收该至少一个目标 小区基站采用时分方式发送的该至少两套参考信号资源。
优选的, 上述方案中的该每套参考信号资源对应一个测量配置; 该测量 配置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期、 测量间隔。
该测量模块 1102, 还用于根据该参考信号资源对应的测量配置对该至少 一个目标小区的信道质量进行测量。
进一歩地, 如上方案所述的 UE 1100还包括:
滤波模块,用于在该发送模块 1103将该测量结果及该测量结果对应的参 考信号资源的标识发送给该服务小区基站之前,对该测量结果进行时域滤波, 以对该测量结果进行更新。
在如上任一所述的方案的基础上, 接收模块 1101, 还用于接收该服务小 区基站发送的该服务小区对应的参考信号资源; 其中, 该服务小区对应的参 考信号资源包括: 至少两套参考信号资源, 每套参考信号资源对应一个预编 码信息。
对应的, 测量模块 1102, 还用于在发送模块 1103将该测量结果及该测 量结果对应的参考信号资源的标识发送给该服务小区基站之前, 根据该服务 小区对应的参考信号资源对该服务小区的信道质量进行测量, 获得该服务小 区的测量结果。
优选的, 如上方案中的, 该测量结果为信道质量指示 CQI信息、 参考信 号接收功率 RSRP信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少一个。
在上述方案的基础上, 其中, 该每个目标小区及该服务小区对应的参考 信号资源包括: 至少一套小区特定参考信号资源。
该测量模块 1102, 还用于分别根据该每个目标小区对应的该至少一套小 区特定参考信号资源对该至少一个目标小区的信道质量进行测量, 获得该至 少一个目标小区的第一测量结果; 根据该服务小区对应的该至少一套小区特 定参考信号资源对该服务小区的信道质量进行测量, 获得该服务小区的第一 测量结果。
可选的, 上述该每个目标小区及该服务小区对应的参考信号资源包括: 至少一套用户特定参考信号资源;
该测量模块 1102, 还用于分别根据该每个目标小区对应的该至少一套用 户特定参考信号资源对该至少一个目标小区的信道质量进行测量, 获得该至 少一个目标小区的第二测量结果; 根据该服务小区对应的该至少一套用户特 定参考信号资源对该服务小区的信道质量进行测量, 获得该服务小区的第二
测量结果。
可选的, 上述方案中的该每个目标小区及该服务小区对应的参考信号资 源还包括: 至少一套用户特定参考信号资源;
该测量模块 1102, 还用于分别根据该每个目标小区对应的该至少一套用 户特定参考信号资源对该至少一个目标小区的信道质量进行测量, 获得该至 少一个目标小区的第二测量结果; 根据该服务小区对应的该至少一套用户特 定参考信号资源对该服务小区的信道质量进行测量, 获得该服务小区的第二 测量结果。
优选的, 上述发送模块 1103, 还用于根据预设的事件触发条件将该测量 结果发送给该服务小区基站。
本实施例方案提供的 UE可实施上述实施例一至实施例四中任一所述的 小区切换方法, 其具体的实现过程及有益效果, 与上述实施例类似, 在此不 再赘述。
实施例 ^一
本实施例还提供一种基站。图 12为本发明实施例十一所提供的基站的结 构示意图。 如图 12所示, 该基站 1200包括:
接收模块 1201, 用于接收 UE发送的测量结果及该测量结果对应的参考 信号资源的标识; 其中, 该测量结果包括: 该 UE根据至少一个目标小区基 站发送的参考信号资源对该至少一个目标小区的信道质量进行测量的结果; 该参考信号资源包括: 该至少一个目标小区对应的参考信号资源, 每个目标 小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编码信息。
判断模块 1202, 用于根据该测量结果确定该 UE是否进行小区切换。 发送模块 1203, 用于若根据该测量结果确定该 UE进行小区切换, 向该 至少一个目标小区基站发送切换请求消息。
切换模块 1204, 用于根据该至少一个目标小区基站返回的切换请求响应 消息对该 UE进行小区切换。
进一歩地, 上述方案中发送模块 1203, 还用于在接收模块 1201接收该 UE发送的该测量结果及该测量结果对应的参考信号资源的标识之前,将该每 个目标小区基站的参考信号资源个数、 该每套参考信号资源所对应的配置信 息通知给该 UE, 以使该 UE根据该每个目标小区基站的参考信号资源个数、
该每套参考信号资源所对应的配置信息接收该每个目标小区对应的参考信号 资源。 其中, 该每套参考信号资源所对应的配置信息包括: 天线端口的数量、 天线端口的端口号、 导频序列及时频资源位置中至少一个。
优选的, 上述方案中, 该每套参考信号资源对应一个测量配置; 该测量 配置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期及测量间隔; 该测量结果包括: 该 UE根据该参考信号资源对应的测量配置对该至少 一个目标小区的信道质量进行测量的结果。
进一歩地, 该测量结果为该 UE进行时域滤波之后的结果。
在上述任一所述方案的基础上, 该发送模块 1203, 还用于向该 UE发送 服务小区对应的参考信号资源; 其中, 该服务小区对应的参考信号资源包括: 至少两套参考信号资源; 每套参考信号资源对应一个预编码信息。
对应的, 该测量结果还包括: 该 UE根据该服务小区对应的参考信号资 源对该服务小区的信道质量进行测量的结果。
进一歩地, 该判断模块 1202, 还用于根据该测量结果, 分别判断该至少 一个目标小区的信道质量与该服务小区的信道质量的大小; 若该至少一个目 标小区的信道质量大于该服务小区的信道质量, 确定该 UE进行小区切换; 或者, 若该至少一个目标小区的信道质量与该服务小区的信道质量的差值大 于预设阈值, 确定该 UE进行小区切换。
在如上所述方案的基础上, 该发送模块 1203, 还用于通过 X2空口向该 至少一个目标小区基站发送该切换请求消息;
对应的, 该切换请求消息为该至少一个目标小区基站通过该 X2 空口发 送的消息。
优选的, 上述方案中, 该测量结果为信道质量指示 CQI信息、 参考信号 接收功率 RSRP信息、 参考信号接收质量 RSRQ信息及接收信号指示强度 RSSI信息中至少一个。
进一歩地, 上述实施例方案中, 该每个目标小区及该服务小区对应的参 考信号资源包括: 至少一套小区特定参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第一测量结果及该服 务小区的第一测量结果。其中, 该至少一个目标小区的第一测量结果为该 UE 分别根据该每个目标小区对应的该至少一套小区特定参考信号资源进行信道
质量测量的结果; 该服务小区的第一测量结果为该 UE根据该服务小区对应 的该至少一套小区特定参考信号资源进行信道质量测量的结果。
可选的, 该每个目标小区及该服务小区对应的参考信号资源包括: 至少 一套用户特定参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第二测量结果及该服 务小区的第二测量结果。其中, 该至少一个目标小区的第二测量结果为该 UE 分别根据该每个目标小区对应的该至少一套用户特定参考信号资源进行信道 质量测量的结果; 该服务小区的第二测量结果为该 UE根据该服务小区对应 的该至少一套用户特定参考信号资源进行信道质量测量的结果。
进一歩地, 上述该每个目标小区及该服务小区对应的参考信号资源还包 括: 至少一套用户特定参考信号资源;
对应的, 该测量结果还包括: 该至少一个目标小区的第二测量结果及该 服务小区的第二测量结果。 其中, 该至少一个目标小区的第二测量结果为该
UE分别根据该每个目标小区对应的该至少一套用户特定参考信号资源进行 信道质量测量的结果; 该服务小区的第二测量结果为该 UE根据所述服务小 区对应的该至少一套用户特定参考信号资源进行信道质量测量的结果。
优选的, 该测量结果为该 UE根据预设的事件触发条件进行发送的。 本实施例方案提供的基站为服务小区基站, 可实施上述实施例五或实施 例六中任一所述的小区切换方法, 其具体的实现过程及有益效果, 与上述实 施例类似, 在此不再赘述。
实施例十二
本实施例还提供一种基站。图 13为本发明实施例十二所提供的基站的结 构示意图。 如图 13所示, 该基站 1300包括:
接收模块 1301, 用于接收服务小区基站发送的切换请求消息。 其中, 该 切换请求消息包括:请求切换的 UE, 测量结果及该测量结果对应的参考信号 资源的标识; 该测量结果包括:该 UE对该 UE的至少一个目标小区的信道质 量进行测量的结果; 该参考信号资源包括: 该至少一个目标小区对应的参考 信号资源; 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对 应一个预编码信息。
确定模块 1302, 用于该测量结果确定该 UE是否进行小区切换。
发送模块 1303, 用于向该服务小区基站发送切换请求响应消息, 以使该 服务小区基站根据该切换请求响应消息对该 UE进行小区切换。
进一歩地, 该确定模块 1302, 还用于根据该测量结果对应的参考信号资 源的标识、 自身的信道质量测量结果及对应的参考信号资源的标识, 确定该 UE切换后的预编码信息或该预编码信息对应的参考信号资源标识;
发送模块 1303, 还用于将该预编码信息或该预编码信息对应的参考信号 资源标识通过该切换请求响应消息发送至该服务小区基站, 以使该服务小区 基站根据该预编码信息或该预编码信息对应的参考信号资源标识对该 UE进 行小区切换。
优选的, 该切换请求消息为该服务小区基站通过 X2空口发送的消息; 发送模块 1303, 还用于通过该 X2空口将该预编码信息或该预编码信息 对应的参考信号资源标识携带在该切换请求响应消息中发送给该服务小区基 站。
在上述方案的基础上, 该测量结果为信道质量指示 CQI信息、 参考信号 接收功率 RSRP信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少一个。
在上述任一所述方案的基础上, 该每个目标小区对应的参考信号资源包 括: 至少一套小区特定参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第一测量结果; 该至 少一个目标小区的第一测量结果为该 UE分别根据该每个目标小区对应的该 至少一套小区特定参考信号资源进行信道质量测量的结果。
可选的, 该每个目标小区对应的参考信号资源包括: 至少一套用户特定 参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第二测量结果; 该至 少一个目标小区的第二测量结果为该 UE分别根据该每个目标小区对应的该 至少一套用户特定参考信号资源进行信道质量测量的结果。
进一歩地, 该每个目标小区对应的参考信号资源还包括: 至少一套用户 特定参考信号资源;
对应的, 该测量结果还包括: 该至少一个目标小区的第二测量结果; 该 至少一个目标小区的第二测量结果为该 UE分别根据该每个目标小区对应的
该至少一套用户特定参考信号资源进行信道质量测量的结果。
优选的, 该发送模块 1303, 还用于根据该第一测量结果对应的参考信号 资源标识、 该自身的信道质量结果及对应的参考信号资源标识, 确定该 UE 切换后的第一预编码信息或该第一预编码信息对应的参考信号资源标识; 根 据该第二测量结果对应的参考信号资源标识、 该自身信道质量结果及对应的 参考信号资源标识, 确定该 UE切换后的第二预编码信息或该第二预编码信 息对应的参考信号资源标识。
发送模块 1303, 还用于将该第一预编码信息或该第一预编码信息对应的 参考信号资源标识和该第二预编码信息或该第一预编码信息对应的参考信号 资源标识通过该切换请求响应消息发送至该服务小区基站, 以使该服务小区 基站根据该第一预编码信息或该第一预编码信息对应的参考信号资源标识和 该第二预编码信息或该第二预编码信息对应的参考信号资源标识对该 UE进 行小区切换。
本实施例方案提供的基站为目标小区基站, 可实施上述实施例七或实施 例八中任一所述的小区切换方法, 其具体的实现过程及有益效果, 与上述实 施例类似, 在此不再赘述。
实施例十三
本实施例还提供一种 UE。 图 14为本发明实施例十三所提供的 UE的结 构示意图。 如图 14所示, 该 UE 1400包括: 接收机 1401、 处理器 1402及发 送机 1403 ;
其中, 该接收机 1401, 用于接收至少一个目标小区基站发送的参考信号 资源; 其中, 该参考信号资源包括: 该至少一个目标小区对应的参考信号资 源; 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个 预编码信息。
处理器 1402, 用于根据该参考信号资源对该至少一个目标小区的信道质 量进行测量, 获得测量结果及该测量结果对应的参考信号资源的标识。
发送机 1403, 用于将该测量结果及该测量结果对应的参考信号资源的标 识发送给服务小区基站, 以使该服务小区基站根据该测量结果确定该 UE是 否进行小区切换, 若是, 该服务小区基站向该至少一个目标小区基站发送切 换请求消息, 并根据该至少一个目标小区基站返回的切换请求响应消息对该
UE进行小区切换。
进一歩地, 该接收机 1401, 还用于在接收该至少一个目标小区基站发送 的参考信号资源之前, 接收该服务小区基站发送的该每个目标小区的参考信 号资源个数、 该每套参考信号资源所对应的配置信息。 其中, 该每套参考信 号资源所对应一个配置信息, 该配置信息包括: 天线端口的数量、 天线端口 的端口号、 导频序列及时频资源位置中至少一个。
在上述方案的基础上, 该接收机 1401, 还用于接收该至少一个目标小区 基站采用时分方式发送的该至少两套参考信号资源。
优选的, 该每套参考信号资源对应一个测量配置; 该测量配置包括: 测 量激活的起始***帧号 SFN、 子帧号、 测量周期、 测量间隔;
处理器 1402, 还用于根据该参考信号资源对应的测量配置对该至少一个 目标小区的信道质量进行测量。
进一歩地, 该处理器 1402, 还用于在发送机 1403将该测量结果及该测 量结果对应的参考信号资源的标识发送给该服务小区基站之前, 对该测量结 果进行时域滤波, 以对该测量结果进行更新。
在如上所述方案基础上, 其中, 该接收机 1401, 还用于接收该服务小区 基站发送的该服务小区对应的参考信号资源; 其中, 该服务小区对应的参考 信号资源包括: 至少两套参考信号资源, 每套参考信号资源对应一个预编码
I Ή自、 .,
处理器 1402, 还用于在发送机 1403将该测量结果及该测量结果对应的 参考信号资源的标识发送给该服务小区基站之前, 根据该服务小区对应的参 考信号资源对该服务小区的信道质量进行测量,获得该服务小区的测量结果。
优选的,该测量结果为信道质量指示 CQI信息、参考信号接收功率 RSRP 信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少 一个。
进一歩地, 该每个目标小区及该服务小区对应的参考信号资源包括: 至 少一套小区特定参考信号资源;
处理器 1402, 还用于分别根据该每个目标小区对应的该至少一套小区特 定参考信号资源对该至少一个目标小区的信道质量进行测量, 获得该至少一 个目标小区的第一测量结果; 根据该服务小区对应的该至少一套小区特定参
考信号资源对该服务小区的信道质量进行测量, 获得该服务小区的第一测量 结果。
可选的, 该每个目标小区及该服务小区对应的参考信号资源包括: 至少 一套用户特定参考信号资源;
处理器 1402, 还用于分别根据该每个目标小区对应的该至少一套用户特 定参考信号资源对该至少一个目标小区的信道质量进行测量, 获得该至少一 个目标小区的第二测量结果; 根据该服务小区对应的该至少一套用户特定参 考信号资源对该服务小区的信道质量进行测量, 获得该服务小区的第二测量 结果。
进一歩地,该每个目标小区及所述服务小区对应的参考信号资源还包括: 至少一套用户特定参考信号资源;
处理器 1402, 还用于分别根据该每个目标小区对应的所述至少一套用户 特定参考信号资源对该至少一个目标小区的信道质量进行测量, 获得该至少 一个目标小区的第二测量结果; 根据该服务小区对应的该至少一套用户特定 参考信号资源对该服务小区的信道质量进行测量, 获得该服务小区的第二测 量结果。
优选的, 该发送机 1403, 还用于根据预设的事件触发条件将该测量结果 发送给该服务小区基站。
本实施例方案提供的 UE可实施上述实施例一至实施例四中任一所述的 小区切换方法, 其具体的实现过程及有益效果, 与上述实施例类似, 在此不 再赘述。
实施例十四
本实施例还提供一种基站。图 15为本发明实施例十四所提供的基站的结 构示意图。 如图 15所示, 该基站 1500包括: 接收机 1501、 处理器 1502及 发送机 1503;
其中, 该接收机 1501, 用于接收 UE发送的测量结果及该测量结果对应 的参考信号资源的标识; 其中, 该测量结果包括: 该 UE根据至少一个目标 小区基站发送的参考信号资源对该至少一个目标小区的信道质量进行测量的 结果; 该参考信号资源包括: 该至少一个目标小区对应的参考信号资源, 每 个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编码
I Ft Ή自、 .,
处理器 1502, 用于根据该测量结果确定该 UE是否进行小区切换; 发送机 1503, 用于若根据该测量结果确定该 UE进行小区切换, 向该至 少一个目标小区基站发送切换请求消息;
该处理器 1502, 还用于根据该至少一个目标小区基站返回的切换请求响 应消息对该 UE进行小区切换。
进一歩地, 该发送机 1503, 还用于在接收机 1501接收 UE发送的测量结 果及该测量结果对应的参考信号资源的标识之前, 将该每个目标小区基站的 参考信号资源个数、该每套参考信号资源所对应的配置信息通知给该 UE, 以 使该 UE根据该每个目标小区基站的参考信号资源个数、 该每套参考信号资 源所对应的配置信息接收该每个目标小区对应的参考信号资源; 其中, 该每 套参考信号资源所对应的配置信息包括: 天线端口的数量、 天线端口的端口 号, 导频序列及时频资源位置中至少一个。
在上述方案的基础上, 优选的, 该每套参考信号资源对应一个测量配置; 该测量配置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期及测量 间隔;
该测量结果包括: 该 UE根据该参考信号资源对应的测量配置对该至少 一个目标小区的信道质量进行测量的结果。
进一歩地, 该测量结果为该 UE进行时域滤波之后的结果。
在上述方案的基础上, 其中该发送机 1503, 还用于向该 UE发送服务小 区对应的参考信号资源; 其中, 该服务小区对应的参考信号资源包括: 至少 两套参考信号资源; 每套参考信号资源对应一个预编码信息;
对应的, 该测量结果还包括: 该 UE根据该服务小区对应的参考信号资 源对该服务小区的信道质量进行测量的结果。
进一歩地, 该处理器 1502, 还用于根据该测量结果, 分别判断该至少一 个目标小区的信道质量与该服务小区的信道质量的大小; 若该至少一个目标 小区的信道质量大于该服务小区的信道质量, 确定该 UE进行小区切换; 或 者, 若该至少一个目标小区的信道质量与该服务小区的信道质量的差值大于 预设阈值, 确定该 UE进行小区切换。
优选的, 该发送机 1503, 还用于通过 X2空口向该至少一个目标小区基
站发送该切换请求消息;
对应的, 该切换请求响应消息为该至少一个目标小区基站通过该 X2 空 口发送的消息。
优选的,该测量结果为信道质量指示 CQI信息、参考信号接收功率 RSRP 信息、 参考信号接收质量 RSRQ信息及接收信号指示强度 RSSI信息中至少 一个。
进一歩地, 该每个目标小区及该服务小区对应的参考信号资源包括: 至 少一套小区特定参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第一测量结果及该服 务小区的第一测量结果; 其中, 该至少一个目标小区的第一测量结果为该 UE 分别根据该每个目标小区对应的该至少一套小区特定参考信号资源进行信道 质量测量的结果; 该服务小区的第一测量结果为该 UE根据该 0服务小区对 应的该至少一套小区特定参考信号资源进行信道质量测量的结果。
可选的, 该每个目标小区及该服务小区对应的参考信号资源包括: 至少 一套用户特定参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第二测量结果及该服 务小区的第二测量结果; 其中, 该至少一个目标小区的第二测量结果为该 UE 分别根据该每个目标小区对应的该至少一套用户特定参考信号资源进行信道 质量测量的结果; 该服务小区的第二测量结果为该 UE根据该服务小区对应 的该至少一套用户特定参考信号资源进行信道质量测量的结果。
进一歩地, 该每个目标小区及该服务小区对应的参考信号资源还包括: 至少一套用户特定参考信号资源;
对应的, 该测量结果还包括: 该至少一个目标小区的第二测量结果及该 服务小区的第二测量结果; 其中, 该至少一个目标小区的第二测量结果为该 UE分别根据该每个目标小区对应的该至少一套用户特定参考信号资源进行 信道质量测量的结果; 该服务小区的第二测量结果为该 UE根据该服务小区 对应的该至少一套用户特定参考信号资源进行信道质量测量的结果。
进一歩地, 该测量结果为该 UE根据预设的事件触发条件进行发送的。 本实施例方案提供的基站为服务小区基站, 可实施上述实施例五或实施 例六中任一所述的小区切换方法, 其具体的实现过程及有益效果, 与上述实
施例类似, 在此不再赘述。
实施例十五
本实施例还提供一种基站。图 16为本发明实施例十五所提供的基站的结 构示意图。 如图 16所示, 该基站 1600包括: 接收机 1601、 处理器 1602及 发送机 1603;
其中, 接收机 1601, 用于接收服务小区基站发送的切换请求消息; 其中, 该切换请求消息包括:请求切换的 UE, 测量结果及该测量结果对应的参考信 号资源的标识; 该测量结果包括:该 UE对该 UE的至少一个目标小区的信道 质量进行测量的结果; 该参考信号资源包括: 该至少一个目标小区对应的参 考信号资源; 每个目标小区对应至少两套参考信号资源, 每套参考信号资源 对应一个预编码信息;
处理器 1602, 用于根据该测量结果确定该 UE是否进行小区切换; 发送机 1603, 用于向该服务小区基站发送切换请求响应消息, 以使该服 务小区基站根据该切换请求响应消息对该 UE进行小区切换。
进一歩地, 该处理器 1602, 还用于根据该测量结果对应的参考信号资源 的标识、 自身的信道质量测量结果及对应的参考信号资源的标识, 确定该 UE 切换后的预编码信息或该预编码信息对应的参考信号资源标识;
发送机 1603, 还用于将该预编码信息或该预编码信息对应的参考信号资 源标识通过该切换请求响应消息发送至该服务小区基站, 以使该服务小区基 站根据该预编码信息或该预编码信息对应的参考信号资源标识对该 UE进行 小区切换。
在上述方案的基础上, 该切换请求消息为该服务小区基站通过 X2 空口 发送的消息;
发送机 1603, 还用于通过该 X2空口将该预编码信息或该预编码信息对 应的参考信号资源标识携带在该切换请求响应消息中发送给该服务小区基 站。
优选的,该测量结果为信道质量指示 CQI信息、参考信号接收功率 RSRP 信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少 一个。
进一歩地, 该每个目标小区对应的参考信号资源包括: 至少一套小区特
定参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第一测量结果; 该至 少一个目标小区的第一测量结果为该 UE分别根据该每个目标小区对应的该 至少一套小区特定参考信号资源进行信道质量测量的结果。
可选的, 该每个目标小区对应的参考信号资源包括: 至少一套用户特定 参考信号资源;
对应的, 该测量结果包括: 该至少一个目标小区的第二测量结果; 该至 少一个目标小区的第二测量结果为该 UE分别根据该每个目标小区对应的该 至少一套用户特定参考信号资源进行信道质量测量的结果。
进一歩地, 该每个目标小区对应的参考信号资源还包括: 至少一套用户 特定参考信号资源;
对应的, 该测量结果还包括: 该至少一个目标小区的第二测量结果; 该 至少一个目标小区的第二测量结果为该 UE分别根据该每个目标小区对应的 该至少一套用户特定参考信号资源进行信道质量测量的结果。
进一歩地, 该处理器 1602, 还用于根据该第一测量结果对应的参考信号 资源标识、 该自身的信道质量结果及对应的参考信号资源标识, 确定该 UE 切换后的第一预编码信息或该第一预编码信息对应的参考信号资源标识; 根 据该第二测量结果对应的参考信号资源标识、 该自身信道质量结果及对应的 参考信号资源标识, 确定该 UE切换后的第二预编码信息或该第二预编码信 息对应的参考信号资源标识;
发送机 1603, 还用于将该第一预编码信息或该第一预编码信息对应的参 考信号资源标识和该第二预编码信息或该第一预编码信息对应的参考信号资 源标识通过该切换请求响应消息发送至该服务小区基站, 以使该服务小区基 站根据该第一预编码信息或该第一预编码信息对应的参考信号资源标识和该 第二预编码信息或该第二预编码信息对应的参考信号资源标识对该 UE进行 小区切换。
本实施例方案提供的基站为目标小区基站, 可实施上述实施例七或实施 例八中任一所述的小区切换方法, 其具体的实现过程及有益效果, 与上述实 施例类似, 在此不再赘述。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分歩骤
可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的歩骤; 而前述 的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介 质。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
Claims
1、 一种小区切换方法, 其特征在于, 包括:
接收至少一个目标小区基站发送的参考信号资源; 其中, 所述参考信号 资源包括: 所述至少一个目标小区对应的参考信号资源; 每个目标小区对应 至少两套参考信号资源, 每套参考信号资源对应一个预编码信息;
根据所述参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得测量结果及所述测量结果对应的参考信号资源的标识;
将所述测量结果及所述测量结果对应的参考信号资源的标识发送给服务 小区基站, 以使所述服务小区基站根据所述测量结果确定所述 UE是否进行 小区切换, 若是, 所述服务小区基站向所述至少一个目标小区基站发送切换 请求消息, 并根据所述至少一个目标小区基站返回的切换请求响应消息对所 述 UE进行小区切换。
2、 根据权利要求 1所述的方法, 其特征在于, 所述接收至少一个目标小 区基站发送的参考信号资源之前, 还包括:
接收所述服务小区基站发送的所述每个目标小区的参考信号资源个数、 所述每套参考信号资源所对应的配置信息; 其中, 所述每套参考信号资源所 对应一个配置信息, 所述配置信息包括: 天线端口的数量、 天线端口的端口 号、 导频序列及时频资源位置中至少一个。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述接收至少一个目 标小区基站发送的参考信号资源, 包括:
接收所述至少一个目标小区基站采用时分方式发送的所述至少两套参考 信号资源。
4、 根据权利要求 3所述的方法, 其特征在于, 所述每套参考信号资源对 应一个测量配置; 所述测量配置包括: 测量激活的起始***帧号 SFN、 子帧 号、 测量周期、 测量间隔;
所述根据所述参考信号资源对所述至少一个目标小区的信道质量进行测 量, 包括:
根据所述参考信号资源对应的测量配置对所述至少一个目标小区的信道 质量进行测量。
5、 根据权利要求 4所述的方法, 其特征在于, 所述将获得的测量结果及
所述测量结果对应的参考信号资源的标识发送给所述服务小区基站之前, 还 包括:
对所述测量结果进行时域滤波, 以对所述测量结果进行更新。
6、 根据权利要求 1-5中任一项所述的方法, 其特征在于, 所述方法, 还 包括:
接收所述服务小区基站发送的所述服务小区对应的参考信号资源;其中, 所述服务小区对应的参考信号资源包括: 至少两套参考信号资源, 每套参考 信号资源对应一个预编码信息;
对应的, 所述将获得的测量结果及所述测量结果对应的参考信号资源的 标识发送给所述服务小区基站之前, 还包括:
根据所述服务小区对应的参考信号资源对所述服务小区的信道质量进行 测量, 获得所述服务小区的测量结果。
7、 根据权利要求 6所述的方法, 其特征在于, 所述测量结果为信道质量 指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接收质量 RSRQ信 息及接收信号强度指示 RSSI信息中至少一个。
8、 根据权利要求 7所述的方法, 其特征在于, 所述每个目标小区及所述 服务小区对应的参考信号资源包括: 至少一套小区特定参考信号资源;
所述根据所述参考信号资源对所述至少一个目标小区的信道质量进行测 量, 包括:
分别根据所述每个目标小区对应的所述至少一套小区特定参考信号资源 对所述至少一个目标小区的信道质量进行测量, 获得所述至少一个目标小区 的第一测量结果;
所述根据所述服务小区对应的参考信号资源对所述服务小区的信道质量 进行测量, 包括:
根据所述服务小区对应的所述至少一套小区特定参考信号资源对所述服 务小区的信道质量进行测量, 获得所述服务小区的第一测量结果。
9、 根据权利要求 7所述的方法, 其特征在于, 所述每个目标小区及所述 服务小区对应的参考信号资源包括: 至少一套用户特定参考信号资源;
所述根据所述参考信号资源对所述至少一个目标小区的信道质量进行测 量, 包括:
分别根据所述每个目标小区对应的所述至少一套用户特定参考信号资源 对所述至少一个目标小区的信道质量进行测量, 获得所述至少一个目标小区 的第二测量结果;
所述根据所述服务小区对应的参考信号资源对所述服务小区的信道质量 进行测量, 包括:
根据所述服务小区对应的所述至少一套用户特定参考信号资源对所述服 务小区的信道质量进行测量, 获得所述服务小区的第二测量结果。
10、 根据权利要求 8所述的方法, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源还包括: 至少一套用户特定参考信号资源; 所述根据所述参考信号资源对所述至少一个目标小区的信道质量进行测 量, 还包括:
分别根据所述每个目标小区对应的所述至少一套用户特定参考信号资源 对所述至少一个目标小区的信道质量进行测量, 获得所述至少一个目标小区 的第二测量结果;
所述根据所述服务小区对应的参考信号资源对所述服务小区的信道质量 进行测量, 还包括:
根据所述服务小区对应的所述至少一套用户特定参考信号资源对所述服 务小区的信道质量进行测量, 获得所述服务小区的第二测量结果。
11、 根据权利要求 10所述的方法, 其特征在于, 所述将获得的测量结果 及所述测量结果对应的参考信号资源的标识发送给所述服务小区基站,包括: 根据预设的事件触发条件将所述测量结果发送给所述服务小区基站。
12、 根据权利要求 11所述的方法, 其特征在于, 所述预设事件触发条件 包括: 同***事件触发条件或异***事件触发条件。
13、 根据权利要求 12所述的方法, 其特征在于, 所述同***事件触发条 件包括以下任一一种:
第一事件触发条件, 为所述服务小区的第一测量结果大于等于第一预设 门限, 且所述服务小区的第二测量结果大于等于第二预设门限;
第二事件触发条件, 为所述服务小区的第一测量结果小于所述第一预设 门限, 或所述服务小区的第二测量结果小于所述第二预设门限;
第三事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于
所述服务小区的第一测量结果, 且大于等于所述第一预设门限; 所述服务小 区的第二测量结果大于等于所述第二预设门限;
第***触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述第一预设门限, 且所述至少一个目标小区的第二测量结果大于等于所述 第二预设门限;
第五事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述第一预设门限, 且所述至少一个目标小区的第二测量结果大于等于所述 第二预设门限; 所述服务小区的第一测量结果小于第三预设门限, 所述服务 小区的第二测量结果小于第四预设门限。
14、 根据权利要求 13所述的方法, 其特征在于, 所述异***事件触发条 件包括以下任一一种:
第六事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述服务小区的第一测量结果, 且大于等于所述第一预设门限, 所述服务小 区的第二测量结果大于等于所述第二预设门限;
第七事件触发条件, 为所述至少一个目标小区的第一测量结果大于等于 所述第一预设门限, 所述服务小区的第二测量结果大于等于所述第二预设门 限。
15、 一种小区切换方法, 其特征在于, 包括:
接收 UE发送的测量结果及所述测量结果对应的参考信号资源的标识; 其中, 所述测量结果包括: 所述 UE根据至少一个目标小区基站发送的参考 信号资源对所述至少一个目标小区的信道质量进行测量的结果; 所述参考信 号资源包括: 所述至少一个目标小区对应的参考信号资源, 每个目标小区对 应至少两套参考信号资源, 每套参考信号资源对应一个预编码信息;
根据所述测量结果确定所述 UE是否进行小区切换, 若是, 向所述至少 一个目标小区基站发送切换请求消息;
根据所述至少一个目标小区基站返回的切换请求响应消息对所述 UE进 行小区切换。
16、 根据权利要求 15所述的方法, 其特征在于, 所述接收 UE发送的测 量结果及所述测量结果对应的参考信号资源的标识之前, 还包括:
将所述每个目标小区基站的参考信号资源个数、 所述每套参考信号资源
所对应的配置信息通知给所述 UE, 以使所述 UE根据所述每个目标小区基站 的参考信号资源个数、 所述每套参考信号资源所对应的配置信息接收所述每 个目标小区对应的参考信号资源; 其中, 所述每套参考信号资源所对应的配 置信息包括: 天线端口的数量、 天线端口的端口号, 导频序列及时频资源位 置中至少一个。
17、 根据权利要求 15或 16所述的方法, 其特征在于, 所述每套参考信 号资源对应一个测量配置; 所述测量配置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期及测量间隔;
所述测量结果包括: 所述 UE根据所述参考信号资源对应的测量配置对 所述至少一个目标小区的信道质量进行测量的结果。
18、 根据权利要求 17 所述的方法, 其特征在于, 所述测量结果为所述 UE进行时域滤波之后的结果。
19、 根据权利要求 15-18 中任一项所述的方法, 其特征在于, 所述方法 还包括:
向所述 UE发送服务小区对应的参考信号资源; 其中, 所述服务小区对 应的参考信号资源包括: 至少两套参考信号资源; 每套参考信号资源对应一 个预编码信息;
对应的, 所述测量结果还包括: 所述 UE根据所述服务小区对应的参考 信号资源对所述服务小区的信道质量进行测量的结果。
20、 根据权利要求 19所述的方法, 其特征在于, 所述根据所述测量结果 确定所述 UE是否进行小区切换, 包括:
根据所述测量结果, 分别判断所述至少一个目标小区的信道质量与所述 服务小区的信道质量的大小;
若所述至少一个目标小区的信道质量大于所述服务小区的信道质量, 确 定所述 UE进行小区切换; 或者,
若所述至少一个目标小区的信道质量与所述服务小区的信道质量的差值 大于预设阈值, 确定所述 UE进行小区切换。
21、 根据权利要求 15-20 中任一项所述的方法, 其特征在于, 所述向所 述至少一个目标小区基站发送切换请求消息, 包括:
通过 X2空口向所述至少一个目标小区基站发送所述切换请求消息;
对应的, 所述切换请求响应消息为所述至少一个目标小区基站通过所述
X2空口发送的消息。
22、 根据权利要求 15-21 中任一项所述的方法, 其特征在于, 所述测量 结果为信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接 收质量 RSRQ信息及接收信号指示强度 RSSI信息中至少一个。
23、 根据权利要求 22所述的方法, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套小区特定参考信号资源; 对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果及 所述服务小区的第一测量结果; 其中, 所述至少一个目标小区的第一测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套小区特定参考 信号资源进行信道质量测量的结果;所述服务小区的第一测量结果为所述 UE 根据所述服务小区对应的所述至少一套小区特定参考信号资源进行信道质量 测量的结果。
24、 根据权利要求 22所述的方法, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套用户特定参考信号资源; 对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果及 所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参考 信号资源进行信道质量测量的结果;所述服务小区的第二测量结果为所述 UE 根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道质量 测量的结果。
25、 根据权利要求 23所述的方法, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源还包括: 至少一套用户特定参考信号资源; 对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果 及所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量 结果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参 考信号资源进行信道质量测量的结果; 所述服务小区的第二测量结果为所述 UE根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道 质量测量的结果。
26、 根据权利要求 25 所述的方法, 其特征在于, 所述测量结果为所述
UE根据预设的事件触发条件进行发送的。
27、 一种小区切换方法, 其特征在于, 包括:
接收服务小区基站发送的切换请求消息; 其中, 所述切换请求消息包括: 请求切换的 UE、测量结果及所述测量结果对应的参考信号资源的标识; 所述 测量结果包括:所述 UE对所述 UE的至少一个目标小区的信道质量进行测量 的结果; 所述参考信号资源包括: 所述至少一个目标小区对应的参考信号资 源; 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个 预编码信息;
根据所述测量结果确定所述 UE是否进行小区切换;
向所述服务小区基站发送切换请求响应消息, 以使所述服务小区基站根 据所述切换请求响应消息对所述 UE进行小区切换。
28、 根据权利要求 27所述的方法, 其特征在于, 所述根据所述测量结果 确定所述 UE是否进行小区切换包括:
根据所述测量结果对应的参考信号资源的标识、 自身的信道质量测量结 果及对应的参考信号资源的标识, 确定所述 UE切换后的预编码信息或所述 预编码信息对应的参考信号资源标识;
所述向所述服务小区基站发送切换请求响应消息包括:
将所述预编码信息或所述预编码信息对应的参考信号资源标识通过所述 切换请求响应消息发送至所述服务小区基站, 以使所述服务小区基站根据所 述预编码信息或所述预编码信息对应的参考信号资源标识对所述 UE进行小 区切换。
29、 根据权利要求 28所述的方法, 其特征在于, 所述切换请求消息为所 述服务小区基站通过 X2空口发送的消息;
所述将所述预编码信息或所述预编码信息对应的参考信号资源标识通过 所述切换请求响应消息发送至所述服务小区基站, 包括:
通过所述 X2 空口将所述预编码信息或所述预编码信息对应的参考信号 资源标识携带在所述切换请求响应消息中发送给所述服务小区基站。
30、 根据权利要求 28或 29所述的方法, 其特征在于, 所述测量结果为 信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少一个。
31、 根据权利要求 28-30 中任一项所述的方法, 其特征在于, 所述每个 目标小区对应的参考信号资源包括: 至少一套小区特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果; 所述至少一个目标小区的第一测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套小区特定参考信号资源进行信道质量测量的结果。
32、 根据权利要求 28-30 中任一项所述的方法, 其特征在于, 所述每个 目标小区对应的参考信号资源包括: 至少一套用户特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
33、 根据权利要求 31所述的方法, 其特征在于, 所述每个目标小区对应 的参考信号资源还包括: 至少一套用户特定参考信号资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
34、 根据权利要求 33所述的方法, 其特征在于, 所述根据所述测量结果 对应的参考信号资源标识、 自身的信道测量的结果及对应的参考信号资源标 识, 确定所述 UE切换的预编码信息或所述预编码信息对应的参考信号资源 标识, 包括:
根据所述第一测量结果对应的参考信号资源标识、 所述自身的信道质量 结果及对应的参考信号资源标识, 确定所述 UE切换后的第一预编码信息或 所述第一预编码信息对应的参考信号资源标识;
根据所述第二测量结果对应的参考信号资源标识、 所述自身信道质量结 果及对应的参考信号资源标识, 确定所述 UE切换后的第二预编码信息或所 述第二预编码信息对应的参考信号资源标识;
所述将所述预编码信息通过所述切换响应消息发送至所述服务小区基站 包括:
将所述第一预编码信息或所述第一预编码信息对应的参考信号资源标识 和所述第二预编码信息或所述第一预编码信息对应的参考信号资源标识通过 所述切换请求响应消息发送至所述服务小区基站, 以使所述服务小区基站根
据所述第一预编码信息或所述第一预编码信息对应的参考信号资源标识和所 述第二预编码信息或所述第二预编码信息对应的参考信号资源标识对所述
UE进行小区切换。
35、 一种 UE, 其特征在于, 包括:
接收模块, 用于接收至少一个目标小区基站发送的参考信号资源; 其中, 所述参考信号资源包括: 所述至少一个目标小区对应的参考信号资源; 每个 目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编码信 息;
测量模块, 用于根据所述参考信号资源对所述至少一个目标小区的信道 质量进行测量, 获得测量结果及所述测量结果对应的参考信号资源的标识; 发送模块, 用于将所述测量结果及所述测量结果对应的参考信号资源的 标识发送给服务小区基站, 以使所述服务小区基站根据所述测量结果确定所 述 UE是否进行小区切换, 若是, 所述服务小区基站向所述至少一个目标小 区基站发送切换请求消息, 并根据所述至少一个目标小区基站返回的切换请 求响应消息对所述 UE进行小区切换。
36、 根据权利要求 35所述的 UE, 其特征在于,
所述接收模块, 还用于在接收所述至少一个目标小区基站发送的参考信 号资源之前, 接收所述服务小区基站发送的所述每个目标小区的参考信号资 源个数、 所述每套参考信号资源所对应的配置信息; 其中, 所述每套参考信 号资源对应一个配置信息, 所述配置信息包括: 天线端口的数量、 天线端口 的端口号、 导频序列及时频资源位置中至少一个。
37、 根据权利要求 35或 36所述的 UE, 其特征在于,
所述接收模块, 还用于接收所述至少一个目标小区基站采用时分方式发 送的所述至少两套参考信号资源。
38、 根据权利要求 37所述的 UE, 其特征在于, 所述每套参考信号资源 对应一个测量配置; 所述测量配置包括: 测量激活的起始***帧号 SFN、 子 帧号、 测量周期、 测量间隔;
所述测量模块, 还用于根据所述参考信号资源对应的测量配置对所述至 少一个目标小区的信道质量进行测量。
39、 根据权利要求 38所述的 UE, 其特征在于, 所述 UE, 还包括:
滤波模块, 用于在所述发送模块将所述测量结果及所述测量结果对应的 参考信号资源的标识发送给所述服务小区基站之前, 对所述测量结果进行时 域滤波, 以对所述测量结果进行更新。
40、 根据权利要求 35-39中任一项所述的 UE, 其特征在于,
所述接收模块, 还用于接收所述服务小区基站发送的所述服务小区对应 的参考信号资源; 其中, 所述服务小区对应的参考信号资源包括: 至少两套 参考信号资源, 每套参考信号资源对应一个预编码信息;
对应的, 所述测量模块, 还用于在所述发送模块将所述测量结果及所述 测量结果对应的参考信号资源的标识发送给所述服务小区基站之前, 根据所 述服务小区对应的参考信号资源对所述服务小区的信道质量进行测量, 获得 所述服务小区的测量结果。
41、 根据权利要求 40所述的 UE, 其特征在于, 所述测量结果为信道质 量指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接收质量 RSRQ 信息及接收信号强度指示 RSSI信息中至少一个。
42、 根据权利要求 41所述的 UE, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套小区特定参考信号资源; 所述测量模块, 还用于分别根据所述每个目标小区对应的所述至少一套 小区特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得 所述至少一个目标小区的第一测量结果; 根据所述服务小区对应的所述至少 一套小区特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述 服务小区的第一测量结果。
43、 根据权利要求 41所述的 UE, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套用户特定参考信号资源; 所述测量模块, 还用于分别根据所述每个目标小区对应的所述至少一套 用户特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得 所述至少一个目标小区的第二测量结果; 根据所述服务小区对应的所述至少 一套用户特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述 服务小区的第二测量结果。
44、 根据权利要求 42所述的 UE, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源还包括: 至少一套用户特定参考信号资源;
所述测量模块, 还用于分别根据所述每个目标小区对应的所述至少一套 用户特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得 所述至少一个目标小区的第二测量结果; 根据所述服务小区对应的所述至少 一套用户特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述 服务小区的第二测量结果。
45、 根据权利要求 44所述的 UE, 其特征在于,
所述发送模块, 还用于根据预设的事件触发条件将所述测量结果发送给 所述服务小区基站。
46、 一种基站, 其特征在于, 包括:
接收模块, 用于接收 UE发送的测量结果及所述测量结果对应的参考信 号资源的标识; 其中, 所述测量结果包括: 所述 UE根据至少一个目标小区 基站发送的参考信号资源对所述至少一个目标小区的信道质量进行测量的结 果; 所述参考信号资源包括: 所述至少一个目标小区对应的参考信号资源, 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一个预编 码信息;
判断模块, 用于根据所述测量结果确定所述 UE是否进行小区切换; 发送模块, 用于若根据所述测量结果确定所述 UE进行小区切换, 向所 述至少一个目标小区基站发送切换请求消息; 切换模块, 用于根据所述至少一个目标小区基站返回的切换请求响应消 息对所述 UE进行小区切换。
47、 根据权利要求 46所述的基站, 其特征在于,
所述发送模块, 还用于在所述接收模块接收所述 UE发送的所述测量结 果及所述测量结果对应的参考信号资源的标识之前, 将所述每个目标小区基 站的参考信号资源个数、 所述每套参考信号资源所对应的配置信息通知给所 述 UE, 以使所述 UE根据所述每个目标小区基站的参考信号资源个数、 所述 每套参考信号资源所对应的配置信息接收所述每个目标小区对应的参考信号 资源; 其中, 所述每套参考信号资源所对应的配置信息包括: 天线端口的数 量、 天线端口的端口号、 导频序列及时频资源位置中至少一个。
48、 根据权利要求 47或 46所述的基站, 其特征在于, 所述每套参考信 号资源对应一个测量配置; 所述测量配置包括: 测量激活的起始***帧号
SFN、 子帧号、 测量周期及测量间隔;
所述测量结果包括: 所述 UE根据所述参考信号资源对应的测量配置对 所述至少一个目标小区的信道质量进行测量的结果。
49、 根据权利要求 48 所述的基站, 其特征在于, 所述测量结果为所述 UE进行时域滤波之后的结果。
50、 根据权利要求 46-49中任一项所述的基站, 其特征在于,
所述发送模块, 还用于向所述 UE发送服务小区对应的参考信号资源; 其中, 所述服务小区对应的参考信号资源包括: 至少两套参考信号资源; 每 套参考信号资源对应一个预编码信息;
对应的, 所述测量结果还包括: 所述 UE根据所述服务小区对应的参考 信号资源对所述服务小区的信道质量进行测量的结果。
51、 根据权利要求 50所述的基站, 其特征在于,
所述判断模块, 还用于根据所述测量结果, 分别判断所述至少一个目标 小区的信道质量与所述服务小区的信道质量的大小; 若所述至少一个目标小 区的信道质量大于所述服务小区的信道质量, 确定所述 UE进行小区切换; 或者, 若所述至少一个目标小区的信道质量与所述服务小区的信道质量的差 值大于预设阈值, 确定所述 UE进行小区切换。
52、 根据权利要求 46-51中任一项所述基站, 其特征在于,
所述发送模块, 还用于通过 X2 空口向所述至少一个目标小区基站发送 所述切换请求消息;
对应的, 所述切换请求消息为所述至少一个目标小区基站通过所述 X2 空口发送的消息。
53、 根据权利要求 46-52 中任一项所述的基站, 其特征在于, 所述测量 结果为信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接 收质量 RSRQ信息及接收信号指示强度 RSSI信息中至少一个。
54、 根据权利要求 53所述的基站, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套小区特定参考信号资源; 对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果及 所述服务小区的第一测量结果; 其中, 所述至少一个目标小区的第一测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套小区特定参考
信号资源进行信道质量测量的结果;所述服务小区的第一测量结果为所述 UE 根据所述服务小区对应的所述至少一套小区特定参考信号资源进行信道质量 测量的结果。
55、 根据权利要求 53所述的基站, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套用户特定参考信号资源; 对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果及 所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参考 信号资源进行信道质量测量的结果;所述服务小区的第二测量结果为所述 UE 根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道质量 测量的结果。
56、 根据权利要求 54所述的基站, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源还包括: 至少一套用户特定参考信号资源; 对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果 及所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量 结果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参 考信号资源进行信道质量测量的结果; 所述服务小区的第二测量结果为所述 UE根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道 质量测量的结果。
57、 根据权利要求 56 所述的基站, 其特征在于, 所述测量结果为所述
UE根据预设的事件触发条件进行发送的。
58、 一种基站, 其特征在于, 包括:
接收模块, 用于接收服务小区基站发送的切换请求消息; 其中, 所述切 换请求消息包括: 请求切换的 UE, 测量结果及所述测量结果对应的参考信号 资源的标识;所述测量结果包括:所述 UE对所述 UE的至少一个目标小区的 信道质量进行测量的结果; 所述参考信号资源包括: 所述至少一个目标小区 对应的参考信号资源; 每个目标小区对应至少两套参考信号资源, 每套参考 信号资源对应一个预编码信息;
确定模块, 用于所述测量结果确定所述 UE是否进行小区切换; 发送模块, 用于向所述服务小区基站发送切换请求响应消息, 以使所述
服务小区基站根据所述切换请求响应消息对所述 UE进行小区切换。
59、 根据权利要求 58所述的基站, 其特征在于,
所述确定模块, 还用于根据所述测量结果对应的参考信号资源的标识、 自身的信道质量测量结果及对应的参考信号资源的标识, 确定所述 UE切换 后的预编码信息或所述预编码信息对应的参考信号资源标识;
所述发送模块, 还用于将所述预编码信息或所述预编码信息对应的参考 信号资源标识通过所述切换请求响应消息发送至所述服务小区基站, 以使所 述服务小区基站根据所述预编码信息或所述预编码信息对应的参考信号资源 标识对所述 UE进行小区切换。
60、 根据权利要求 59所述的基站, 其特征在于, 所述切换请求消息为所 述服务小区基站通过 X2空口发送的消息;
所述发送模块, 还用于通过所述 X2 空口将所述预编码信息或所述预编 码信息对应的参考信号资源标识携带在所述切换请求响应消息中发送给所述 服务小区基站。
61、 根据权利要求 59或 60所述的基站, 其特征在于, 所述测量结果为 信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少一个。
62、 根据权利要求 59-61 中任一项所述的基站, 其特征在于, 所述每个 目标小区对应的参考信号资源包括: 至少一套小区特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果; 所述至少一个目标小区的第一测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套小区特定参考信号资源进行信道质量测量的结果。
63、 根据权利要求 59-61 中任一项所述的基站, 其特征在于, 所述每个 目标小区对应的参考信号资源包括: 至少一套用户特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
64、 根据权利要求 62所述的基站, 其特征在于, 所述每个目标小区对应 的参考信号资源还包括: 至少一套用户特定参考信号资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果;
所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
65、 根据权利要求 64所述的基站, 其特征在于,
所述发送模块,还用于根据所述第一测量结果对应的参考信号资源标识、 所述自身的信道质量结果及对应的参考信号资源标识, 确定所述 UE切换后 的第一预编码信息或所述第一预编码信息对应的参考信号资源标识; 根据所 述第二测量结果对应的参考信号资源标识、 所述自身信道质量结果及对应的 参考信号资源标识, 确定所述 UE切换后的第二预编码信息或所述第二预编 码信息对应的参考信号资源标识;
所述发送模块, 还用于将所述第一预编码信息或所述第一预编码信息对 应的参考信号资源标识和所述第二预编码信息或所述第一预编码信息对应的 参考信号资源标识通过所述切换请求响应消息发送至所述服务小区基站, 以 使所述服务小区基站根据所述第一预编码信息或所述第一预编码信息对应的 参考信号资源标识和所述第二预编码信息或所述第二预编码信息对应的参考 信号资源标识对所述 UE进行小区切换。
66、 一种 UE, 其特征在于, 包括: 接收机、 处理器及发送机;
其中, 所述接收机, 用于接收至少一个目标小区基站发送的参考信号资 源; 其中, 所述参考信号资源包括: 所述至少一个目标小区对应的参考信号 资源; 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应一 个预编码信息;
所述处理器, 用于根据所述参考信号资源对所述至少一个目标小区的信 道质量进行测量,获得测量结果及所述测量结果对应的参考信号资源的标识; 所述发送机, 用于将所述测量结果及所述测量结果对应的参考信号资源 的标识发送给服务小区基站, 以使所述服务小区基站根据所述测量结果确定 所述 UE是否进行小区切换, 若是, 所述服务小区基站向所述至少一个目标 小区基站发送切换请求消息, 并根据所述至少一个目标小区基站返回的切换 请求响应消息对所述 UE进行小区切换。
67、 根据权利要求 66所述的 UE, 其特征在于,
所述接收机, 还用于在接收所述至少一个目标小区基站发送的参考信号 资源之前, 接收所述服务小区基站发送的所述每个目标小区的参考信号资源
个数、 所述每套参考信号资源所对应的配置信息; 其中, 所述每套参考信号 资源所对应一个配置信息, 所述配置信息包括: 天线端口的数量、 天线端口 的端口号、 导频序列及时频资源位置中至少一个。
68、 根据权利要求 66或 67所述的 UE, 其特征在于,
所述接收机, 还用于接收所述至少一个目标小区基站采用时分方式发送 的所述至少两套参考信号资源。
69、 根据权利要求 68所述的 UE, 其特征在于, 所述每套参考信号资源 对应一个测量配置; 所述测量配置包括: 测量激活的起始***帧号 SFN、 子 帧号、 测量周期、 测量间隔;
所述处理器, 还用于根据所述参考信号资源对应的测量配置对所述至少 一个目标小区的信道质量进行测量。
70、 根据权利要求 69所述的 UE, 其特征在于,
所述处理器, 还用于在所述发送机将所述测量结果及所述测量结果对应 的参考信号资源的标识发送给所述服务小区基站之前, 对所述测量结果进行 时域滤波, 以对所述测量结果进行更新。
71、 根据权利要求 66-70中任一项所述的 UE, 其特征在于,
所述接收机, 还用于接收所述服务小区基站发送的所述服务小区对应的 参考信号资源; 其中, 所述服务小区对应的参考信号资源包括: 至少两套参 考信号资源, 每套参考信号资源对应一个预编码信息;
所述处理器, 还用于在所述发送机将所述测量结果及所述测量结果对应 的参考信号资源的标识发送给所述服务小区基站之前, 根据所述服务小区对 应的参考信号资源对所述服务小区的信道质量进行测量, 获得所述服务小区 的测量结果。
72、 根据权利要求 71所述的 UE, 其特征在于, 所述测量结果为信道质 量指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接收质量 RSRQ 信息及接收信号强度指示 RSSI信息中至少一个。
73、 根据权利要求 72所述的 UE, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套小区特定参考信号资源; 所述处理器, 还用于分别根据所述每个目标小区对应的所述至少一套小 区特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得所
述至少一个目标小区的第一测量结果; 根据所述服务小区对应的所述至少一 套小区特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述服 务小区的第一测量结果。
74、 根据权利要求 72所述的 UE, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套用户特定参考信号资源; 所述处理器, 还用于分别根据所述每个目标小区对应的所述至少一套用 户特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得所 述至少一个目标小区的第二测量结果; 根据所述服务小区对应的所述至少一 套用户特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述服 务小区的第二测量结果。
75、 根据权利要求 73所述的 UE, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源还包括: 至少一套用户特定参考信号资源; 所述处理器, 还用于分别根据所述每个目标小区对应的所述至少一套用 户特定参考信号资源对所述至少一个目标小区的信道质量进行测量, 获得所 述至少一个目标小区的第二测量结果; 根据所述服务小区对应的所述至少一 套用户特定参考信号资源对所述服务小区的信道质量进行测量, 获得所述服 务小区的第二测量结果。
76、 根据权利要求 75所述的 UE, 其特征在于,
所述发送机, 还用于根据预设的事件触发条件将所述测量结果发送给所 述服务小区基站。
77、 一种基站, 其特征在于, 包括: 接收机、 处理器及发送机; 其中, 所述接收机, 用于接收 UE发送的测量结果及所述测量结果对应 的参考信号资源的标识; 其中, 所述测量结果包括: 所述 UE根据至少一个 目标小区基站发送的参考信号资源对所述至少一个目标小区的信道质量进行 测量的结果; 所述参考信号资源包括: 所述至少一个目标小区对应的参考信 号资源, 每个目标小区对应至少两套参考信号资源, 每套参考信号资源对应 一个预编码信息;
所述处理器, 用于根据所述测量结果确定所述 UE是否进行小区切换; 所述发送机, 用于若根据所述测量结果确定所述 UE进行小区切换, 向 所述至少一个目标小区基站发送切换请求消息;
所述处理器, 还用于根据所述至少一个目标小区基站返回的切换请求响 应消息对所述 UE进行小区切换。
78、 根据权利要求 77所述的基站, 其特征在于,
所述发送机, 还用于在所述接收机接收 UE发送的测量结果及所述测量 结果对应的参考信号资源的标识之前, 将所述每个目标小区基站的参考信号 资源个数、所述每套参考信号资源所对应的配置信息通知给所述 UE, 以使所 述 UE根据所述每个目标小区基站的参考信号资源个数、 所述每套参考信号 资源所对应的配置信息接收所述每个目标小区对应的参考信号资源; 其中, 所述每套参考信号资源所对应的配置信息包括: 天线端口的数量、 天线端口 的端口号, 导频序列及时频资源位置中至少一个。
79、 根据权利要求 77或 78所述的基站, 其特征在于, 所述每套参考信 号资源对应一个测量配置; 所述测量配置包括: 测量激活的起始***帧号 SFN、 子帧号、 测量周期及测量间隔;
所述测量结果包括: 所述 UE根据所述参考信号资源对应的测量配置对 所述至少一个目标小区的信道质量进行测量的结果。
80、 根据权利要求 79 所述的基站, 其特征在于, 所述测量结果为所述 UE进行时域滤波之后的结果。
81、 根据权利要求 77-80中任一项所述的基站, 其特征在于,
所述发送机, 还用于向所述 UE发送服务小区对应的参考信号资源; 其 中, 所述服务小区对应的参考信号资源包括: 至少两套参考信号资源; 每套 参考信号资源对应一个预编码信息;
对应的, 所述测量结果还包括: 所述 UE根据所述服务小区对应的参考 信号资源对所述服务小区的信道质量进行测量的结果。
82、 根据权利要求 81所述的基站, 其特征在于,
所述处理器, 还用于根据所述测量结果, 分别判断所述至少一个目标小 区的信道质量与所述服务小区的信道质量的大小; 若所述至少一个目标小区 的信道质量大于所述服务小区的信道质量, 确定所述 UE进行小区切换; 或 者, 若所述至少一个目标小区的信道质量与所述服务小区的信道质量的差值 大于预设阈值, 确定所述 UE进行小区切换。
83、 根据权利要求 77-82中任一项所述的基站, 其特征在于,
所述发送机, 还用于通过 X2 空口向所述至少一个目标小区基站发送所 述切换请求消息;
对应的, 所述切换请求响应消息为所述至少一个目标小区基站通过所述 X2空口发送的消息。
84、 根据权利要求 77-83 中任一项所述的基站, 其特征在于, 所述测量 结果为信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接 收质量 RSRQ信息及接收信号指示强度 RSSI信息中至少一个。
85、 根据权利要求 84所述的基站, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套小区特定参考信号资源; 对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果及 所述服务小区的第一测量结果; 其中, 所述至少一个目标小区的第一测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套小区特定参考 信号资源进行信道质量测量的结果;所述服务小区的第一测量结果为所述 UE 根据所述服务小区对应的所述至少一套小区特定参考信号资源进行信道质量 测量的结果。
86、 根据权利要求 84所述的基站, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源包括: 至少一套用户特定参考信号资源; 对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果及 所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量结 果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参考 信号资源进行信道质量测量的结果;所述服务小区的第二测量结果为所述 UE 根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道质量 测量的结果。
87、 根据权利要求 85所述的基站, 其特征在于, 所述每个目标小区及所 述服务小区对应的参考信号资源还包括: 至少一套用户特定参考信号资源; 对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果 及所述服务小区的第二测量结果; 其中, 所述至少一个目标小区的第二测量 结果为所述 UE分别根据所述每个目标小区对应的所述至少一套用户特定参 考信号资源进行信道质量测量的结果; 所述服务小区的第二测量结果为所述 UE根据所述服务小区对应的所述至少一套用户特定参考信号资源进行信道
质量测量的结果。
88、 根据权利要求 87 所述的基站, 其特征在于, 所述测量结果为所述 UE根据预设的事件触发条件进行发送的。
89、 一种基站, 其特征在于, 包括: 接收机、 处理器及发送机; 其中, 所述接收机, 用于接收服务小区基站发送的切换请求消息; 其中, 所述切换请求消息包括:请求切换的 UE, 测量结果及所述测量结果对应的参 考信号资源的标识;所述测量结果包括:所述 UE对所述 UE的至少一个目标 小区的信道质量进行测量的结果; 所述参考信号资源包括: 所述至少一个目 标小区对应的参考信号资源; 每个目标小区对应至少两套参考信号资源, 每 套参考信号资源对应一个预编码信息;
所述处理器, 用于根据所述测量结果确定所述 UE是否进行小区切换; 所述发送机, 用于向所述服务小区基站发送切换请求响应消息, 以使所 述服务小区基站根据所述切换请求响应消息对所述 UE进行小区切换。
90、 根据权利要求 89所述的基站, 其特征在于,
所述处理器, 还用于根据所述测量结果对应的参考信号资源的标识、 自 身的信道质量测量结果及对应的参考信号资源的标识, 确定所述 UE切换后 的预编码信息或所述预编码信息对应的参考信号资源标识;
所述发送机, 还用于将所述预编码信息或所述预编码信息对应的参考信 号资源标识通过所述切换请求响应消息发送至所述服务小区基站, 以使所述 服务小区基站根据所述预编码信息或所述预编码信息对应的参考信号资源标 识对所述 UE进行小区切换。
91、 根据权利要求 90所述的基站, 其特征在于, 所述切换请求消息为所 述服务小区基站通过 X2空口发送的消息;
所述发送机, 还用于通过所述 X2 空口将所述预编码信息或所述预编码 信息对应的参考信号资源标识携带在所述切换请求响应消息中发送给所述服 务小区基站。
92、 根据权利要求 90或 91所述的基站, 其特征在于, 所述测量结果为 信道质量指示 CQI信息、 参考信号接收功率 RSRP信息、 参考信号接收质量 RSRQ信息及接收信号强度指示 RSSI信息中至少一个。
93、 根据权利要求 90-92 中任一项所述的基站, 其特征在于, 所述每个
目标小区对应的参考信号资源包括: 至少一套小区特定参考信号资源; 对应的, 所述测量结果包括: 所述至少一个目标小区的第一测量结果; 所述至少一个目标小区的第一测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套小区特定参考信号资源进行信道质量测量的结果。
94、 根据权利要求 90-92 中任一项所述的基站, 其特征在于, 所述每个 目标小区对应的参考信号资源包括: 至少一套用户特定参考信号资源;
对应的, 所述测量结果包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
95、 根据权利要求 93所述的基站, 其特征在于, 所述每个目标小区对应 的参考信号资源还包括: 至少一套用户特定参考信号资源;
对应的, 所述测量结果还包括: 所述至少一个目标小区的第二测量结果; 所述至少一个目标小区的第二测量结果为所述 UE分别根据所述每个目标小 区对应的所述至少一套用户特定参考信号资源进行信道质量测量的结果。
96、 根据权利要求 95所述的基站, 其特征在于,
所述处理器, 还用于根据所述第一测量结果对应的参考信号资源标识、 所述自身的信道质量结果及对应的参考信号资源标识, 确定所述 UE切换后 的第一预编码信息或所述第一预编码信息对应的参考信号资源标识; 根据所 述第二测量结果对应的参考信号资源标识、 所述自身信道质量结果及对应的 参考信号资源标识, 确定所述 UE切换后的第二预编码信息或所述第二预编 码信息对应的参考信号资源标识;
所述发送机, 还用于将所述第一预编码信息或所述第一预编码信息对应 的参考信号资源标识和所述第二预编码信息或所述第一预编码信息对应的参 考信号资源标识通过所述切换请求响应消息发送至所述服务小区基站, 以使 所述服务小区基站根据所述第一预编码信息或所述第一预编码信息对应的参 考信号资源标识和所述第二预编码信息或所述第二预编码信息对应的参考信 号资源标识对所述 UE进行小区切换。
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CN110177386A (zh) | 2019-08-27 |
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CN105340324A (zh) | 2016-02-17 |
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