WO2019011271A1 - 切换方法、第一基站、终端和计算机可读存储介质 - Google Patents

切换方法、第一基站、终端和计算机可读存储介质 Download PDF

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Publication number
WO2019011271A1
WO2019011271A1 PCT/CN2018/095263 CN2018095263W WO2019011271A1 WO 2019011271 A1 WO2019011271 A1 WO 2019011271A1 CN 2018095263 W CN2018095263 W CN 2018095263W WO 2019011271 A1 WO2019011271 A1 WO 2019011271A1
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Prior art keywords
base station
preference
request
handover
data rate
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PCT/CN2018/095263
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English (en)
French (fr)
Inventor
李娜
刘亮
谢芳
陈卓
杨光
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China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • 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
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a handover method, a first base station, a terminal, and a computer readable storage medium.
  • 5G farth generation mobile communication technology
  • 4G fourth generation mobile communication technology
  • terminals can connect to two base stations in parallel, improving bit rate performance through multiple downstream data streams while increasing signal strength.
  • embodiments of the present disclosure provide a handover method, a first base station, a terminal, and a computer readable storage medium, such that the UE preferentially switches to a base station that can guarantee its high data rate.
  • a handover method is provided, which is applied to a first base station, and includes:
  • the second base station is determined according to the UE measurement result and the UE preference, and the handover request is sent to the second base station.
  • the first base station is a source primary base station
  • the second base station is a target base station
  • the handover request is used to indicate that the target base station triggers a handover process between the source primary base station and the source secondary base station to switch to the target base station.
  • the first base station is a source primary base station
  • the second base station is a target primary base station
  • the handover request is used to indicate that the target primary base station triggers execution to keep the connection between the UE and the source secondary base station unchanged, and only the source primary base station is switched.
  • the first base station is a source primary base station
  • the second base station is a source secondary base station
  • the handover request is used to indicate that the source secondary base station triggers a process of performing role exchange between a source primary base station and a source secondary base station.
  • the first base station is a source primary base station
  • the second base station is a target primary base station
  • the handover request is used to indicate that the target primary base station triggers performing dual-connection handover from a source primary base station and a source secondary base station to a destination primary base station.
  • the new dual-connected flow of the secondary base station is used to indicate that the target primary base station triggers performing dual-connection handover from a source primary base station and a source secondary base station to a destination primary base station.
  • the handover request carries a source primary base station release request message, where the source primary base station release request message is used to indicate whether to release the source primary base station.
  • the acquiring the UE preference includes:
  • the preference request is sent to the UE by using an RRC reconfiguration message
  • the preference request is sent to the UE by using a terminal capability query message.
  • the obtaining one or more of a preference for power consumption, a preference for a high data rate, and a preference for multiple connections reported by the UE including:
  • the switching method further includes:
  • the measurement report related parameters configured for the UE are sent to the UE.
  • a handover method is further provided, which is applied to a UE, including:
  • the UE measurement result is obtained by the UE according to the measurement report related parameter that is sent by the first base station and is based on the UE preference configuration.
  • the sending the UE preference to the first base station includes:
  • One or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity are sent to the first base station.
  • the preference request is carried in an RRC reconfiguration message
  • the preference request is sent to the UE by using a terminal capability query message.
  • the sending to the first base station, one or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity, including:
  • One or more of a preference for power consumption, a preference for a high data rate, and a preference for multiple connections are sent to the first base station by receiving a terminal capability information message.
  • a first base station including: a first processor, a first receiver, and a first transmitter, where
  • the first receiver is configured to acquire terminal UE measurement results and UE preferences
  • the first transmitter is configured to determine a second base station according to the UE measurement result and the UE preference, and send a handover request to the second base station;
  • the first base station is a source primary base station
  • the second base station is a target base station
  • the handover request is used to indicate that the target base station triggers a handover process between the source primary base station and the source secondary base station to switch to the target base station.
  • the first base station is a source primary base station
  • the second base station is a target primary base station
  • the handover request is used to indicate that the target primary base station triggers execution to keep the connection between the UE and the source secondary base station unchanged, and only the source primary base station is switched.
  • the first base station is a source primary base station
  • the second base station is a source secondary base station
  • the handover request is used to indicate that the source secondary base station triggers a process of performing role exchange between a source primary base station and a source secondary base station.
  • the first base station is a source primary base station
  • the second base station is a target primary base station
  • the handover request is used to indicate that the target primary base station triggers performing dual-connection handover from a source primary base station and a source secondary base station to a destination primary base station.
  • the new dual-connected flow of the secondary base station is used to indicate that the target primary base station triggers performing dual-connection handover from a source primary base station and a source secondary base station to a destination primary base station.
  • the handover request carries a source primary base station release request message, where the source primary base station release request message is used to indicate whether to release the source primary base station.
  • the first transmitter is further configured to: send, to the UE, a preference request of the UE for a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity;
  • the first receiver is further configured to: acquire one or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity reported by the UE.
  • the preference request is sent to the UE by using an RRC reconfiguration message
  • the preference request is sent to the UE by using a terminal capability query message.
  • the first processor is configured to obtain, from the terminal assistance information received by the first receiver, one of a preference for power consumption reported by the UE, a preference for a high data rate, and a preference for multiple connections. Or multiple items; or
  • the first processor is configured to obtain, by using the terminal capability information message received by the first receiver, one or more of a preference for power consumption, a preference for a high data rate, and a preference for multiple connections reported by the UE.
  • the first processor is further configured to configure a measurement reporting related parameter for the UE according to the UE preference reported by the UE;
  • the first transmitter is further configured to send, to the UE, a measurement report related parameter configured for the UE.
  • a terminal UE including: a second receiver, a second transmitter, and a second processor, where:
  • the second transmitter is configured to send a UE measurement result and a UE preference to the first base station.
  • the second receiver is configured to receive a preference request of the first base station for the power consumption preference of the UE, the UE's preference for the high data rate, and the UE's preference for the dual connection. ;
  • the second transmitter is further configured to send one or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity to the first base station.
  • the preference request is carried in an RRC reconfiguration message
  • the preference request is sent to the UE by using a terminal capability query message.
  • the second transmitter is further configured to send, by using the terminal assistance information, one or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity to the first base station; or
  • the second transmitter is further configured to receive, by the terminal capability information message, one or more of a preference for power consumption, a preference for a high data rate, and a preference for multiple connections to the first base station.
  • a first base station comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the The steps in the switching method as described above are implemented at the time of the program.
  • a terminal comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the program The steps in the handover method as described above are implemented.
  • a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the above The steps in the switch method.
  • the first base station determines the second base station according to one or more of the UE measurement result, the UE capability, and the UE preference, and sends a handover to the second base station.
  • the UE measurement result is obtained by the UE according to the measurement report related parameter sent by the first base station, and the measurement report related parameter is configured by the first base station based on the UE preference for the UE, and the UE preference-based handover is implemented to make the UE priority.
  • the UE is guaranteed to preferentially switch to a high data rate frequency (for example, 5G frequency), and the data rate of the UE is guaranteed.
  • a high data rate frequency for example, 5G frequency
  • FIG. 1 is a flowchart of a handover method in an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of switching from a dual connection to a single connection in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a process of maintaining an S-SeNB connection and switching only the S-MeNB to the T-MeNB according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a role exchange process between a primary and secondary base station in an embodiment of the present disclosure
  • FIG. 6 is a structural block diagram of a first base station in an embodiment of the present disclosure.
  • FIG. 7 is a structural block diagram of a UE in an embodiment of the present disclosure.
  • FIG. 8 is a structural block diagram of a first base station in another embodiment of the present disclosure.
  • FIG. 9 is a structural block diagram of a UE in another embodiment of the present disclosure.
  • the base station sets a specific offset (Ofn/Ocn) for the neighboring frequency/cell, or sets a specific offset (Ofs/Ocs) for the serving frequency/cell to help the terminal switch to the best cell. .
  • the A3 event is: the neighboring cell is better than the serving cell. This event can be used to determine whether the UE switches to the neighboring cell.
  • a threshold Neighbour>Serving+Offset
  • Intra-frequency/inter-frequency switching is triggered.
  • the decision threshold for the A3 event is as follows:
  • Mn measurement result of the neighboring cell, regardless of calculating any offset
  • Ocn the cell-specific offset of the neighboring cell, and if it is not configured for the neighboring cell, it is set to 0;
  • Ocs the cell-specific offset of the serving cell, if not configured for the serving cell, set to 0;
  • Hys the hysteresis parameter of the event
  • Off is the offset parameter of the event
  • a base station does not consider a UE's preference when configuring measurement parameters for a UE, such as a preference for a data rate/multiple connection.
  • the base station may set a smaller Ofn and/or Ocn value for a carrier that does not support dual connectivity, or The service carrier sets Ofs and/or Ocs, or sets a larger Hys and/or Off for the current event.
  • the UE needs to report its preference for high data rate/dual connection.
  • the execution body of the method may be a first base station, and the specific steps are as follows:
  • Step 101 Acquire a UE (terminal) measurement result and a UE preference.
  • the UE measurement result is obtained by the UE according to the measurement report related parameter that is sent by the first base station, and the measurement report related parameter is that the first base station configures the UE based on the UE preference, and the measurement reports relevant parameters.
  • the UE preference is used to indicate that the UE always wishes to maintain a high data rate, or that it is desirable to maintain dual connectivity at all times.
  • the UE preference includes: a power consumption preference (PowerPrefIndication), a high data rate preference (HighDataRatePrefIndication), or a dual connectivity preference (DualConnectivityPrefIndication), and is of course not limited thereto.
  • PowerPrefIndication a power consumption preference
  • HighDataRatePrefIndication a high data rate preference
  • DualConnectivityPrefIndication a dual connectivity preference
  • the first base station sends a preference request of the UE to one or more of a power consumption preference, a high data rate preference, and a dual connectivity preference to the UE; the first base station acquires the UE reported One or more of a preference for power consumption, a preference for high data rates, and a preference for dual connectivity.
  • the preference request may be sent to the UE by using an RRC reconfiguration message, for example, the otherConfig (other configuration) of the RRC (Radio Resource Control) reconfiguration message is sent to the UE; or the preference request is queried through the terminal capability.
  • the (UECapabilityEnquiry) message is sent to the UE.
  • obtaining one or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity reported by the UE by receiving UEAssistance Information, or by receiving a terminal capability information UECapabilityInformation message.
  • the UE feeds back the UE preference to the base station through the UEAssistanceInformation message;
  • the UE feeds back the UE preference to the base station through the UECapabilityInformation message.
  • the PowerPrefIndication fed back by the UE is low Power Consumption, it indicates that the UE is not interested in high data rate or multiple connections; newly adding or multiplexing existing normal means that the UE wants to achieve high data rate/dual connection;
  • HighDataRatePrefIndication/DualConnectivityPrefIndication fed back by the UE is TURE (or other value, such as HighDataRateRequired/KeepDualConnectivity), it indicates that the UE wishes to achieve high data rate/dual connection.
  • Step 102 Determine a second base station according to the UE measurement result and the UE preference, and send a handover request to the second base station.
  • the foregoing second base station refers to a base station that satisfies UE measurement results and UE preferences.
  • the handover request is used to trigger different handover procedures:
  • the first base station is a source primary base station (Source MeNB, hereinafter referred to as an S-MeNB), and the second base station is a target base station (Target eNB, hereinafter referred to as a T-eNB); the handover request is used to indicate The destination base station triggers a handover procedure in which the source primary base station and the source secondary base station switch to the target base station, and belongs to a handover mode in which the dual connection is switched to the single connection.
  • S-MeNB source primary base station
  • T-eNB target base station
  • the first base station is a source primary base station (S-MeNB), and the second base station is a target primary base station (T-MeNB); the handover request is used to indicate that the target primary base station triggers execution of the hold UE and the source auxiliary
  • the process in which the base station (S-SeNB) is connected and the source primary base station (S-MeNB) is switched to the destination primary base station (T-MeNB) is a handover mode in which the dual connection is switched to the dual connection.
  • This case is applicable to the case where the UE wishes to support multiple connections, and also applies when the S-SeNB can provide a high data rate and the S-MeNB cannot provide a higher data rate.
  • the first base station is a source primary base station (S-MeNB), and the second base station is a source secondary base station (S-SeNB); the handover request is used to instruct the source secondary base station to trigger execution of a source primary base station and a source a process of switching roles between the secondary base stations;
  • S-MeNB source primary base station
  • S-SeNB source secondary base station
  • the handover request carries a source primary base station release request message (S-MeNB release request), and the source primary base station release request message is used to indicate whether to release the source primary base station (S-MeNB release request).
  • S-MeNB release request a source primary base station release request message
  • S-MeNB release request the source primary base station release request message is used to indicate whether to release the source primary base station
  • This case is applicable to the case where the UE wants to support multiple connections, and also applies when the S-SeNB can provide a high data rate, the S-MeNB cannot provide a higher data rate, and the UE does not search for a high data rate T-MeNB.
  • the process can implement the S-MeNB to the S-SeNB, and is also a dual-to-single-connection switching mode.
  • the first base station is a source primary base station (S-MeNB), and the second base station is a target primary base station (T-MeNB); the handover request is used to instruct the target primary base station to trigger execution from the source primary base station and
  • the process of switching the dual connection of the source secondary base station to the new dual connection of the destination primary base station and the destination secondary base station (T-SeNB) belongs to the handover mode of the dual connection handover to the dual connection.
  • This case is applicable to the case where the UE wishes to support multiple connections, and also applies to the case where the T-MeNB and the T-SeNB can provide higher data rates.
  • the handover method further includes: configuring, according to the UE preference reported by the UE, a measurement reporting related parameter for the UE; and sending, to the UE, the measurement reporting related parameter configured by the UE, where the UE is configured according to the UE.
  • the related parameters of the measurement report may be sent to the UE through the MeasConfig of the RRC reconfiguration message.
  • the measurement reporting related parameters include, but are not limited to, one or more combinations of Ofn, Ocn, Ofs, and Ocs.
  • the first base station determines, according to the UE measurement result and the UE preference, the second base station, and sends a handover request to the second base station, where the UE measurement result is that the UE reports the relevant parameter according to the measurement sent by the first base station.
  • the measured and measured related parameters are configured by the first base station for the UE based on the UE preference, implementing handover for dual connectivity, implementing UE-based handover, and preferentially switching the UE to a base station that can guarantee its high data rate.
  • the UE is guaranteed to preferentially switch to a high data rate frequency (for example, 5G frequency), and the data rate of the UE is guaranteed.
  • a high data rate frequency for example, 5G frequency
  • an execution body of the method may be a terminal (UE), and the specific steps are as follows:
  • Step 201 Send a UE measurement result and a UE preference to the first base station, where the first base station determines the second base station according to the UE measurement result and the UE preference, and sends a handover request to the second base station.
  • the UE measurement result is obtained by the UE according to the measurement report related parameter sent by the first base station, where the measurement report related parameter is that the first base station is configured for the UE based on the UE preference.
  • the UE measurement result is obtained by the UE according to the measurement report related parameter that is sent by the first base station, and the measurement report related parameter is that the first base station configures the UE based on the UE preference, and the measurement reports relevant parameters.
  • the UE preference is used to indicate that the UE always wishes to maintain a high data rate, or that it is desirable to maintain dual connectivity at all times.
  • the UE preference includes: a power consumption preference (PowerPrefIndicationConfig), a high data rate preference (HighDataRatePrefIndicationConfig) or a dual connectivity preference (DualConnectivityPrefIndicationConfig), and is of course not limited thereto.
  • PowerPrefIndicationConfig a power consumption preference
  • HighDataRatePrefIndicationConfig a high data rate preference
  • DualConnectivityPrefIndicationConfig a dual connectivity preference
  • the UE preference may be sent to the first base station in the following manner:
  • the request is carried in The RRC reconfiguration message is sent; or the request is sent to the UE by using a UE Capability Enquiry message.
  • One or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity are then sent to the first base station.
  • the message acquires one or more of a preference for power consumption reported by the UE, a preference for a high data rate, and a preference for multiple connections.
  • the handover request is used to trigger different handover procedures:
  • the first base station is a source primary base station (Source MeNB, hereinafter referred to as an S-MeNB), and the second base station is a target base station (Target eNB, hereinafter referred to as a T-eNB); the handover request is used to indicate The destination base station triggers a handover procedure in which the source primary base station and the source secondary base station switch to the target base station, and belongs to a handover mode in which the dual connection is switched to the single connection.
  • S-MeNB source primary base station
  • T-eNB target base station
  • the first base station is a source primary base station (S-MeNB), and the second base station is a target primary base station (T-MeNB); the handover request is used to indicate that the target primary base station triggers execution of the hold UE and the source auxiliary
  • the process in which the base station (S-SeNB) is connected and the source primary base station (S-MeNB) is switched to the destination primary base station (T-MeNB) is a handover mode in which the dual connection is switched to the dual connection.
  • This case is applicable to the case where the UE wishes to support multiple connections, and also applies when the S-SeNB can provide a high data rate and the S-MeNB cannot provide a higher data rate.
  • the first base station is a source primary base station (S-MeNB), and the second base station is a source secondary base station (S-SeNB); the handover request is used to instruct the source secondary base station to trigger execution of a source primary base station and a source a process of switching roles between the secondary base stations;
  • S-MeNB source primary base station
  • S-SeNB source secondary base station
  • the handover request carries a source primary base station release request message (S-MeNB release request), and the source primary base station release request message is used to indicate whether to release the source primary base station (S-MeNB release request).
  • S-MeNB release request a source primary base station release request message
  • S-MeNB release request the source primary base station release request message is used to indicate whether to release the source primary base station
  • This case is applicable to the case where the UE wants to support multiple connections, and also applies when the S-SeNB can provide a high data rate, the S-MeNB cannot provide a higher data rate, and the UE does not search for a high data rate T-MeNB.
  • the process can implement the S-MeNB to the S-SeNB, and is also a dual-to-single-connection switching mode.
  • the first base station is a source primary base station (S-MeNB), and the second base station is a target primary base station (T-MeNB); the handover request is used to instruct the target primary base station to trigger execution from the source primary base station and
  • the process of switching the dual connection of the source secondary base station to the new dual connection of the destination primary base station and the destination secondary base station (T-SeNB) belongs to the handover mode of the dual connection handover to the dual connection.
  • This case is applicable to the case where the UE wishes to support multiple connections, and also applies to the case where the T-MeNB and the T-SeNB can provide higher data rates.
  • the first base station determines, according to one or more of the UE measurement result, the UE capability, and the UE preference, the second base station, and sends a handover request to the second base station; where the UE measurement result is the UE According to the measurement of the relevant reporting parameters sent by the first base station, the measurement reporting related parameter is configured by the first base station based on the UE preference for the UE, implementing handover for dual connectivity, implementing handover based on UE preference, and enabling the UE to preferentially switch to A base station that can guarantee its high data rate.
  • the UE is guaranteed to preferentially switch to a high data rate frequency (for example, 5G frequency), and the data rate of the UE is guaranteed.
  • a high data rate frequency for example, 5G frequency
  • Embodiment 1 Switching from a base station to a single-link base station by dual connectivity, see FIG. 3, the specific steps are as follows:
  • Step 1 the S-MeNB (source primary base station) sends an RRC connectionReconfiguration (RRC Connection Reconfiguration) message to the UE (terminal), and the RRC connection Reconfiguration message may include a HighDataRatePrefIndicationConfig (high data rate preference configuration);
  • Step 2 The UE sends UEAssistanceInformation to the S-MeNB, where the UEAssistanceInformation includes a HighDataRatePrefIndication (high data rate preference);
  • Step 3 The S-MeNB sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message may include MeasConfig (measurement configuration);
  • Step 4 The UE sends a MeasurementReport to the S-MeNB.
  • Step 5 The S-MeNB sends a Handover Request message to the T-eNB (the destination base station).
  • Step 6 The T-eNB sends a Handover Request Acknowledge message to the S-MeNB.
  • Step 7 The S-MeNB sends a SeNB Release Request message to the S-SeNB (the source secondary base station).
  • Step 8 The S-MeNB sends an RRCConnectionReconfiguration message to the UE.
  • Step 9 Perform a Random Access Procedure between the UE and the T-eNB.
  • Step 10 The UE sends an RRCConnectionReconfigurationComplete (RRC Connection Reconfiguration Complete) message to the T-eNB.
  • RRCConnectionReconfigurationComplete RRC Connection Reconfiguration Complete
  • Step 11 The T-eNB sends a Path Switch Request message to the S-GW (Serving Gateway).
  • Step 12 performing Bearer Modification on the S-GW and the MME;
  • Step 13 The MME sends a Path Swtich Request Acknowledge message to the S-GW.
  • Step 14 the T-eNB notifies the S-MeNB UE Context Release (terminal context release);
  • Step 15 The S-MeNB notifies the S-SeNB UE Context Release.
  • Embodiment 2 Keep the S-SeNB connection unchanged, and only switch the S-MeNB to the T-MeNB. Referring to FIG. 4, the specific steps are as follows:
  • Step 1 the S-MeNB (source primary base station) sends an RRC connectionReconfiguration (RRC Connection Reconfiguration) message to the UE (terminal), and the RRC connection Reconfiguration message may include a HighDataRatePrefIndicationConfig (high data rate preference configuration);
  • Step 2 The UE sends UEAssistanceInformation to the S-MeNB, where the UEAssistanceInformation includes a HighDataRatePrefIndication (high data rate preference);
  • Step 3 The S-MeNB sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message may include MeasConfig (measurement configuration);
  • Step 4 The UE sends a MeasurementReport to the S-MeNB.
  • Step 5 The S-MeNB sends a Handover Request message to the T-MeNB (the target base station).
  • Step 6 the T-MeNB sends a SeNB Addition Request to the SeNB (Secondary Base Station);
  • Step 7 the SeNB sends a SeNB Addition Request ACK to the T-MeNB (SeNB additional request response);
  • Step 8 The T-MeNB sends a Handover Request Acknowledge to the S-MeNB.
  • Step 9 The S-MeNB sends an SeNB Release Request to the SeNB.
  • Step 10 The S-MeNB sends an RRCConnectionReconfiguration to the UE.
  • Step 11 Perform a Random Access Procedure between the UE and the T-MeNB.
  • Step 12 The UE sends an RRCConnectionReconfigurationComplete (RRC Connection Reconfiguration Complete) message to the T-MeNB.
  • RRCConnectionReconfigurationComplete RRC Connection Reconfiguration Complete
  • Step 13 Perform a Random Access Procedure between the UE and the SeNB.
  • Step 14 The T-MeNB sends a SeNB Reconfiguration Complete message to the SeNB.
  • Step 15 The T-MeNB sends a Path Switch Request message to the MME.
  • Step 16 Perform Bearer Modification on the S-GW and the MME.
  • Step 17 The MME sends a Path Swtich Request Acknowledge message to the T-MeNB.
  • Step 18 The T-MeNB notifies the S-MeNB of the UE Context Release (terminal context release);
  • Step 19 The S-MeNB notifies the SeNB of the UE Context Release.
  • Embodiment 3 S-MeNB and S-SeNB role exchange
  • the S-MeNB sends a Role Exchange Request to the S-SeNB according to the UE measurement result and in combination with the PowerPrefIndication or HighDataRatePrefIndication or the DualConnectivityPrefIndication, and performs MeNB and SeNB role exchange.
  • This situation is applicable to the S-MeNB signal quality is poor, the S-SeNB signal quality is good, and the UE does not find other frequency points that support multiple connections and have better signals.
  • the Role Exchange Request needs to carry handover related parameters, such as target cell ID, KeNB, AS configuration, and E-RAB context.
  • the Role Exchange Request needs to carry the configuration of the source MCG.
  • the Role Exchange Request may further carry an S-MeNB release request, where the message is used to indicate whether to release the S-MeNB; when the S-SeNB receives the S-MeNB release request, the S-SeNB also sends the S-MeNB to the S-MeNB.
  • a UE Context Release message informs the S-MeNB to release the UE context.
  • Step 1 the S-MeNB or the T-SeNB sends an RRC connectionReconfiguration (RRC Connection Reconfiguration) message to the UE, where the RRC connection Reconfiguration message may include a HighDataRatePrefIndicationConfig (high data rate preference configuration);
  • Step 2 The UE sends UEAssistanceInformation to the S-MeNB or the T-SeNB, where the UEAssistanceInformation includes HighDataRatePrefIndication (high data rate preference);
  • Step 3 The S-MeNB or the T-SeNB sends an RRC connection reconfiguration message to the UE, where the RRC connection Reconfiguration message may include MeasConfig (measurement configuration);
  • Step 4 The UE sends a MeasurementReport to the S-MeNB or the T-SeNB.
  • Step 5 The S-MeNB or the T-SeNB sends a Role Exchange Request (Role Exchange Request) message to the S-SeNB or the T-MeNB.
  • the Role Exchange Request message includes: HO (HandOver, handover) related parameters, and S-MCG configuration. It may also include an S-MeNB release request message.
  • Step 6 The S-SeNB or the T-MeNB sends a Role Exchange Request Acknowledge message to the S-MeNB or the T-SeNB.
  • Step 7 The S-MeNB or the T-SeNB sends an RRC connectionReconfiguration message to the UE.
  • Step 8 The UE sends an RRC connectionReconfigurationComplete message to the S-SeNB or the T-MeNB.
  • Step 9 The S-SeNB or the T-MeNB sends a Path Switch Request to the MME.
  • Step 10 Perform Bearer Modification on the S-GW and the MME.
  • Step 11 The MME sends a Path Swtich Request Acknowledge message to the S-SeNB or the T-MeNB.
  • Step 12 The S-SeNB or the T-MeNB notifies the S-MeNB or the T-SeNB UE Context Release (terminal context release);
  • Step 13 The S-MeNB or the T-SeNB notifies the S-SeNB or the T-MeNB UE Context Release.
  • a first base station is also provided in the embodiment of the present disclosure.
  • the principle of the first base station is similar to the handover method in the embodiment of the present disclosure. Therefore, the implementation of the first base station can refer to the implementation of the method. , the repetition is no longer described.
  • the first base station 600 includes a first processor 601, a first receiver 602, and a first transmitter 603, where:
  • the first receiver 602 is configured to acquire terminal UE measurement results and UE preferences
  • the first transmitter 603 is configured to determine, according to the UE measurement result and the UE preference, a second base station, and send a handover request to the second base station;
  • the UE measurement result is obtained by the UE according to the measurement report related parameter that is sent by the first base station and is based on the UE preference configuration.
  • the first base station is a source primary base station
  • the second base station is a target base station
  • the handover request is used to indicate that the target base station triggers execution of a source primary base station and a source secondary base station handover. The switching process to the destination base station; or
  • the first base station is a source primary base station
  • the second base station is a target primary base station
  • the handover request is used to indicate that the target primary base station triggers execution to keep the connection between the UE and the source secondary base station unchanged, and only the source primary base station is switched.
  • the first base station is a source primary base station
  • the second base station is a source secondary base station
  • the handover request is used to indicate that the source secondary base station triggers a process of performing role exchange between a source primary base station and a source secondary base station.
  • the first base station is a source primary base station
  • the second base station is a target primary base station
  • the handover request is used to indicate that the target primary base station triggers performing dual-connection handover from a source primary base station and a source secondary base station to a destination primary base station.
  • the new dual-connected flow of the secondary base station is used to indicate that the target primary base station triggers performing dual-connection handover from a source primary base station and a source secondary base station to a destination primary base station.
  • the handover request when the handover request is used to indicate that the second base station triggers a process of performing role exchange between the source primary base station and the source secondary base station, the handover request carries a source.
  • the primary base station releases the request message, and the source primary base station release request message is used to indicate whether to release the source primary base station.
  • the first transmitter 603 is configured to send, to the UE, one of a UE's power consumption preference PowerPrefIndication, a high data rate preference HighDataRatePrefIndication, and a dual connectivity preference DualConnectivityPrefIndication or Multiple preference requests;
  • the first receiver 602 is further configured to: acquire one or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity reported by the UE.
  • the preference request is sent to the UE by using an RRC reconfiguration message
  • the preference request is sent to the UE by using a terminal capability query UECapabilityEnquiry message.
  • the first processor 601 is configured to obtain, by using the terminal assistance information UEAssistanceInformation received by the first receiver 602, a preference for power consumption reported by the UE, a preference for a high data rate, and a plurality of One or more of the connected preferences; or
  • the first processor 601 is configured to acquire, by using the terminal capability information UECapabilityInformation message received by the first receiver 602, one of a preference for power consumption, a preference for a high data rate, and a preference for multiple connections reported by the UE. Or multiple.
  • the UE feeds back the UE preference to the first base station by using the UEAssistanceInformation message;
  • the UE feeds back the UE preference to the first base station through the UECapabilityInformation message.
  • the first processor 601 is further configured to configure a measurement reporting related parameter for the UE according to the UE preference reported by the UE.
  • the first transmitter 603 is further configured to send, to the UE, a measurement report related parameter configured for the UE, where the UE performs measurement according to the measurement report to obtain a UE measurement result.
  • the first base station provided in this embodiment may perform the foregoing method embodiments, and the implementation principle and technical effects are similar, and details are not described herein again in this embodiment.
  • a UE is also provided in the embodiment of the present disclosure.
  • the principle of the problem is similar to that in the embodiment of the present disclosure. Therefore, the implementation of the device may refer to the implementation of the method, and the repeated description is not repeated.
  • the UE 700 includes a second receiver 701, a second transmitter 702, and a second processor 703, where:
  • the second transmitter 702 is configured to send a UE measurement result and a UE preference to the first base station, where the first base station determines the second base station according to the UE measurement result and the UE preference, and sends a handover request to the second base station;
  • the UE measurement result is obtained by the UE according to the measurement report related parameter that is sent by the first base station and is based on the UE preference configuration.
  • the first base station is a source primary base station
  • the second base station is a target base station
  • the handover request is used to indicate that the target base station triggers execution of a source primary base station and a source secondary base station handover. The switching process to the destination base station; or
  • the first base station is a source primary base station
  • the second base station is a target primary base station
  • the handover request is used to indicate that the target primary base station triggers execution to keep the connection between the UE and the source secondary base station unchanged, and only the source primary base station is switched.
  • the first base station is a source primary base station
  • the second base station is a source secondary base station
  • the handover request is used to indicate that the source secondary base station triggers a process of performing role exchange between a source primary base station and a source secondary base station.
  • the first base station is a source primary base station
  • the second base station is a target primary base station
  • the handover request is used to indicate that the target primary base station triggers performing dual-connection handover from a source primary base station and a source secondary base station to a destination primary base station.
  • the new dual-connected flow of the secondary base station is used to indicate that the target primary base station triggers performing dual-connection handover from a source primary base station and a source secondary base station to a destination primary base station.
  • the handover request when the handover request is used to indicate that the second base station triggers a process of performing role exchange between the source primary base station and the source secondary base station, the handover request carries a source.
  • the primary base station releases the request message, and the source primary base station release request message is used to indicate whether to release the source primary base station.
  • the second receiver 701 is configured to receive, by the first base station, a preference of the UE for power consumption, PowerPrefIndication, a preference of the UE for high data rate, HighDataRatePrefIndication, and a preference of the UE for dual connectivity. a preference request for one or more of DualConnectivityPrefIndication;
  • the second transmitter 702 is further configured to send one or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity to the first base station.
  • the preference request is carried in an RRC reconfiguration message
  • the preference request is sent to the UE by using a terminal capability query UECapabilityEnquiry message.
  • the second transmitter 702 is further configured to send a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity to the first base station by using terminal assistance information UEAssistanceInformation. And transmitting one or more of a preference for power consumption, a preference for a high data rate, and a preference for multiple connections to the first base station by receiving a terminal capability information UECapabilityInformation message.
  • a hardware structure diagram of the first base station and the terminal is also provided in the following embodiments.
  • FIG. 8 is a structural diagram of a base station to which the embodiment of the present disclosure is applied, which can implement the details of the handover method in the embodiment corresponding to FIG. 1 to FIG. 5, and achieve the same effect.
  • the base station 800 includes a processor 801, a transceiver 802, a memory 803, a user interface 804, and a bus interface, where:
  • the base station 800 further includes: a computer program stored on the memory 803 and executable on the processor 801.
  • the computer program is executed by the processor 801, the following steps are performed: acquiring terminal UE measurement results and UE preferences; The second base station is determined according to the UE measurement result and the UE preference, and the handover request is sent to the second base station.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 801 and various circuits of memory represented by memory 803.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 802 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 804 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 can store data used by the processor 801 in performing operations.
  • the following steps may be further implemented: sending one or more of a UE's power consumption preference PowerPrefIndication, a high data rate preference HighDataRatePrefIndication, and a dual connectivity preference DualConnectivityPrefIndication to the UE a preference request; obtaining one or more of a preference for power consumption reported by the UE, a preference for a high data rate, and a preference for dual connectivity.
  • the following steps may be further implemented: acquiring, by the terminal assistance information UEAssistanceInformation, one of a preference for power consumption reported by the UE, a preference for a high data rate, and a preference for multiple connections. Or multiple items; or
  • the measurement report related parameters configured for the UE are sent to the UE.
  • FIG. 9 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
  • the terminal 900 shown in FIG. 9 includes at least one processor 901, a memory 902, at least one network interface 904, and a user interface 903.
  • the various components in terminal 900 are coupled together by a bus system 905.
  • the bus system 905 is used to implement connection communication between these components.
  • the bus system 905 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as bus system 905 in FIG.
  • the user interface 903 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen, etc.).
  • a pointing device eg, a mouse, a trackball, a touchpad, or a touch screen, etc.
  • the memory 902 in an embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • DRRAM direct memory bus random access memory
  • memory 902 holds the following elements, executable modules or data structures, or a subset thereof, or their extended set: operating system 9021 and application 9022.
  • the operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
  • the application 9022 includes various applications, such as a media player (Media Player), a browser, and the like, for implementing various application services.
  • a program implementing the method of the embodiments of the present disclosure may be included in the application 9022.
  • the program or the instruction saved by the memory 902 may be a program or an instruction saved in the application 9022, and the processor 901 may execute the method executed by the terminal.
  • the method disclosed in the above embodiments of the present disclosure may be applied to the processor 901 or implemented by the processor 901.
  • the processor 901 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 901 or an instruction in a form of software.
  • the processor 901 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902 and completes the steps of the above method in combination with its hardware.
  • the embodiments described in the embodiments of the present disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described in this disclosure In an electronic unit or a combination thereof.
  • ASICs Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device Digital Signal Processing Equipment
  • PLD programmable Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the techniques described in the embodiments of the present disclosure may be implemented by modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software code can be stored in memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the processor 901 may call the program or the instruction saved by the memory 902, and perform the following process: sending the UE measurement result and the UE preference to the first base station, where the UE measurement result is sent by the UE according to the first base station. The measurement is reported based on the measurement of the UE's preference configuration.
  • the processor 901 can call a program or an instruction saved by the memory 902 to perform the following process:
  • One or more of a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity are sent to the first base station.
  • the processor 901 may invoke a program or instruction saved by the memory 902, and execute the following process: sending a preference for power consumption, a preference for a high data rate, and a preference for dual connectivity to the first base station by using terminal assistance information UEAssistanceInformation And transmitting one or more of a preference for power consumption, a preference for a high data rate, and a preference for multiple connections to the first base station by receiving a terminal capability information UECapabilityInformation message.
  • the embodiment of the present disclosure further provides a computer readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement the steps in the embodiment of the data switching method as described above .
  • system and “network” are used interchangeably herein.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network side device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

本公开实施例提供了一种切换方法、第一基站、终端和计算机可读存储介质，该切换方法包括：获取终端UE测量结果和UE偏好；根据UE测量结果和UE偏好确定第二基站，向所述第二基站发送切换请求；其中，所述UE测量结果是UE根据所述第一基站下发的测量上报相关参数测量得到的，所述测量上报相关参数是所述第一基站基于UE偏好为所述UE配置的。

Description

切换方法、第一基站、终端和计算机可读存储介质
相关申请的交叉引用
本申请主张在2017年7月14日在中国提交的中国专利申请号No.201710573702.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种切换方法、第一基站、终端和计算机可读存储介质。
背景技术
随着移动互联网、云计算、物联网、机器类型通信等新兴通信技术的飞速发展，信息社会进入了网络化的大数据时代。快速普及的智能化移动终端应用助推了全球移动数据流量的大幅度增长。预计5G(第五代移动通信技术)可实现比4G(第四代移动通信技术)快十倍以上的传输速率，即5G的传输速率要达到1Gb/s。
为了保证较高的传输速率，一种可能的解决方法是，让终端始终保持多连接或者双连接，使终端难以切换到不支持双连接的载波上。通过双连接技术，终端可以并行连接到两个基站，通过多个下行数据流提高比特率性能，同时提高信号强度。
而在相关技术中的切换技术中，并没有给出保证UE(终端)高数据速率的切换流程。
发明内容
鉴于上述技术问题，本公开实施例提供一种切换方法、第一基站、终端和计算机可读存储介质，使UE优先切换到可以保证其高数据速率的基站。
依据本公开的实施例的第一个方面，提供了一种切换方法，应用于第一基站，包括：
获取UE测量结果和UE偏好；
根据UE测量结果和UE偏好确定第二基站，向所述第二基站发送切换请求。
可选地，所述第一基站为源主基站，所述第二基站为目的基站；所述切换请求用于指示所述目的基站触发执行源主基站和源辅基站切换到目的基站的切换流程；或者
所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行保持UE与源辅基站连接不变，只将源主基站切换到目的主基站的流程；或者
所述第一基站为源主基站，所述第二基站为源辅基站；所述切换请求用于指示所述源辅基站触发执行源主基站与源辅基站之间切换的角色互换的流程；或者
所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行从源主基站和源辅基站的双连接切换到目的主基站和目的辅基站的新的双连接的流程。
可选地，所述切换请求中携带源主基站释放请求消息，该源主基站释放请求消息用于指示是否释放源主基站。
可选地，所述获取UE偏好，包括：
向UE发送UE对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项的偏好请求；
获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
可选地，所述偏好请求通过RRC重配置消息下发给UE；或者
所述偏好请求通过终端能力查询消息下发给UE。
可选地，所述获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对多连接的偏好中的一项或多项，包括：
通过接收终端辅助信息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项；或者
通过接收终端能力信息消息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
可选地，所述切换方法还包括：
根据UE上报的UE偏好，为UE配置测量上报相关参数；
将为UE配置的测量上报相关参数发送给UE。
依据本公开实施例的第二个方面，还提供了一种切换方法，应用于UE，包括：
向第一基站发送UE测量结果和UE偏好；
其中，所述UE测量结果是UE根据所述第一基站下发的基于UE偏好配置的测量上报相关参数测量得到的。
可选地，所述向第一基站发送UE偏好，包括：
接收所述第一基站发送的UE对功率消耗的偏好、UE对高数据速率的偏好和UE对双连接的偏好中的一项或多项的偏好请求；
向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
可选地，所述偏好请求携带在RRC重配置消息中；或者
所述偏好请求通过终端能力查询消息下发给UE。
可选地，所述向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项，包括：
通过终端辅助信息向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项；或者
通过接收终端能力信息消息向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
依据本公开实施例的第三个方面，还提供了一种第一基站，包括：第一处理器、第一接收器和第一发送器，其中
所述第一接收器用于获取终端UE测量结果和UE偏好；
所述第一发送器，用于根据UE测量结果和UE偏好确定第二基站，向所述第二基站发送切换请求；
可选地，所述第一基站为源主基站，所述第二基站为目的基站；所述切换请求用于指示所述目的基站触发执行源主基站和源辅基站切换到目的基站的切换流程；或者
所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行保持UE与源辅基站连接不变，只将源主基站切换到目的主基站的流程；或者
所述第一基站为源主基站，所述第二基站为源辅基站；所述切换请求用于指示所述源辅基站触发执行源主基站与源辅基站之间切换的角色互换的流程；或者
所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行从源主基站和源辅基站的双连接切换到目的主基站和目的辅基站的新的双连接的流程。
可选地，所述切换请求中携带源主基站释放请求消息，该源主基站释放请求消息用于指示是否释放源主基站。
可选地，所述第一发送器进一步用于：用于向UE发送UE对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项的偏好请求；
所述第一接收器进一步用于：用于获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
可选地，所述偏好请求通过RRC重配置消息下发给UE；或者
所述偏好请求通过终端能力查询消息下发给UE。
可选地，所述第一处理器用于从所述第一接收器接收的终端辅助信息中获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项；或者
所述第一处理器用于从所述第一接收器接收的终端能力信息消息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
可选地，所述第一处理器还用于根据UE上报的UE偏好，为UE配置测量上报相关参数；
所述第一发送器还用于将为UE配置的测量上报相关参数发送给UE。
依据本公开实施例的第四个方面，还提供了一种终端UE，包括：第二接收器、第二发送器和第二处理器，其中：
所述第二发送器用于向第一基站发送UE测量结果和UE偏好。
可选地，所述第二接收器用于接收所述第一基站发送的UE对功率消耗的偏好、UE对高数据速率的偏好和UE对双连接的偏好中的一项或多项的偏好请求；
所述第二发送器还用于向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
可选地，所述偏好请求携带在RRC重配置消息中；或者
所述偏好请求通过终端能力查询消息下发给UE。
可选地，所述第二发送器还用于通过终端辅助信息向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项；或者
所述第二发送器还用于通过接收终端能力信息消息向所述第一基站对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
依据本公开的实施例的第五个方面，还提供了一种第一基站，包括：存储器、处理器及保存在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现如上所述的切换方法中的步骤。
依据本公开的实施例的第六个方面，还提供了一种终端，包括：存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现如上所述的切换方法中的步骤。
依据本公开的实施例的第七个方面，还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如上所述的切换方法中的步骤。
上述技术方案中的一个技术方案具有如下优点或有益效果：第一基站根据UE测量结果、UE能力、以及UE偏好中的一项或多项，确定第二基站，向所述第二基站发送切换请求；其中，UE测量结果是UE根据第一基站下发的测量上报相关参数测量得到的，测量上报相关参数是第一基站基于UE偏好为UE配置的，实现基于UE偏好的切换，使UE优先切换到可以保证其高数据速率的基站。进一步，基于UE上报的对功率消耗的偏好、对高数据速率的偏好或对双连接的偏好，保证UE优先切换到高数据速率频率(例如5G频率)，保证了UE的数据速率。
附图说明
图1为本公开一个实施例中的切换方法的流程图；
图2为本公开另一个实施例中的切换方法的流程图；
图3为本公开一个实施例中的由双连接切换到单连接的流程示意图；
图4为本公开一个实施例中的保持S-SeNB连接不变，只将S-MeNB切换到T-MeNB的流程示意图；
图5为本公开的一个实施例中的主辅基站角色互换流程示意图；
图6为本公开一个实施例中的第一基站的结构框图；
图7为本公开一个实施例中的UE的结构框图；
图8为本公开另一个实施例中的第一基站的结构框图；
图9为本公开另一个实施例中的UE的结构框图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
为保证合理切换，基站会为邻区频率/小区设置特定的偏置(Ofn/Ocn)，或者为服务频率/小区设置特定的偏置(Ofs/Ocs)，以帮助终端切换到最好的小区。
以A3事件为例，A3事件为：邻小区好于服务小区，这个事件发生可以用来决定UE是否切换到邻小区，当邻小区比服务小区质量高于一个门限(Neighbour>Serving+Offset)，才会触发频内/频间的切换。A3事件的判决门限如下：
事件进入条件：Mn+Ofn+Ocn-Hys>Ms+Ofs+Ocs+Off
事件离开条件：Mn+Ofn+Ocn+Hys<Ms+Ofs+Ocs+Off
其中：
Mn：邻小区的测量结果，不考虑计算任何偏置；
Ofn：该邻区频率特定的偏置；
Ocn：该邻区的小区特定偏置，同时如果没有为邻区配置，则设置为0；
Ms：没有计算任何偏置下的服务小区的测量结果；
Ofs：服务频率上频率特定的偏置；
Ocs：服务小区的小区特定偏置，如果没有为服务小区配置，则设置为0；
Hys：该事件的滞后参数；
Off：为该事件的偏移参数；
在相关技术中，基站在为UE配置测量参数时并没有考虑UE的偏好，例如对数据速率/多连接的偏好。
为使终端尽量不切换到不支持双连接的载波上或者切换到能保证UE较高数据速率的载波上，基站可以为不支持双连接的载波设置较小的Ofn和/或Ocn值，或者为服务载波设置Ofs和/或Ocs，或者为当前事件设置较大的Hys和/或Off。为了辅助基站做合理的测量上报参数配置，UE需要上报其对高数据速率/双连接的偏好。
参见图1，图中示出了一种切换方法的流程，该方法的执行主体可以是第一基站，具体步骤如下：
步骤101、获取UE(终端)测量结果和UE偏好；
在本实施例中，UE测量结果是UE根据第一基站下发的测量上报相关参数测量得到的，该测量上报相关参数是所述第一基站基于UE偏好为UE配置的，该测量上报相关参数包括但不限于：Ofn、Ocn、Ofs和/或Ocs。
在本实施例中，UE偏好用于表示UE始终希望保持高数据速率，或者希望始终保持双连接。
可选地，该UE偏好包括：对功率消耗的偏好(PowerPrefIndication)、对高数据速率的偏好(HighDataRatePrefIndication)或者对双连接的偏好(DualConnectivityPrefIndication)，当然也并不限于此。
可选地，在步骤101中，第一基站向UE发送UE对功率消耗的偏好、高数据速率的偏好和双连接的偏好中的一项或多项的偏好请求；第一基站获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
例如：该偏好请求可以通过RRC重配置消息下发给UE，例如通过RRC (Radio Resource Control，无线资源控制)重配置消息的otherConfig(其他配置)下发给UE；或者该偏好请求通过终端能力查询(UECapabilityEnquiry)消息下发给UE。
例如：通过接收终端辅助信息(UEAssistance Information)获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项；或者通过接收终端能力信息UECapabilityInformation消息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
如果基站通过RRC重配置消息请求UE偏好，那么UE通过UEAssistanceInformation消息将UE偏好反馈给基站；
如果基站通过UECapabilityEnquiry消息请求UE偏好，那么UE通过UECapabilityInformation消息将UE偏好反馈给基站。
如果UE反馈的PowerPrefIndication为lowPowerConsumption(低功率消耗)，则表示UE对高数据速率或者多连接不感兴趣；新增加whatever或复用现有normal，表示UE希望实现高数据速率/双连接；
如果UE反馈的HighDataRatePrefIndication/DualConnectivityPrefIndication为TURE(或者其他值，如HighDataRateRequired(高数据速率需求)/KeepDualConnectivity(保持双连接连通性))，则表示UE希望实现高数据速率/双连接。
步骤102、根据UE测量结果和UE偏好确定第二基站，向所述第二基站发送切换请求。
上述第二基站是指满足UE测量结果和UE偏好的基站。
在本实施例中，根据第一基站和第二基站的类型，切换请求用于触发不同的切换流程：
(1)第一基站为源主基站(Source MeNB，以下称为S-MeNB)，所述第二基站为目的基站(Target eNB，以下称为T-eNB)；所述切换请求用于指示所述目的基站触发执行源主基站和源辅基站切换到目的基站的切换流程，属于双连接切换到单连接的切换方式。
此种情况适用于UE对多连接不感兴趣的情况，也适用于UE对高速数据 速率感兴趣(单连接基站可以提供比双连接更高的数据速率)或不感兴趣的情况。
(2)第一基站为源主基站(S-MeNB)，所述第二基站为目的主基站(T-MeNB)；所述切换请求用于指示所述目的主基站触发执行保持UE与源辅基站(S-SeNB)连接不变，只将源主基站(S-MeNB)切换到目的主基站(T-MeNB)的流程，属于双连接切换到双连接的切换方式。
此种情况适用于UE希望支持多连接的情况，也适用于S-SeNB可以提供高数据速率、而S-MeNB不能提供较高数据速率的情况。
(3)第一基站为源主基站(S-MeNB)，所述第二基站为源辅基站(S-SeNB)；所述切换请求用于指示所述源辅基站触发执行源主基站与源辅基站之间切换的角色互换的流程；
进一步地，该切换请求中携带源主基站释放请求消息(S-MeNB release request)，该源主基站释放请求消息用于指示是否释放源主基站(S-MeNB release request)。
此种情况适用于UE希望支持多连接的情况，也适用于S-SeNB可以提供高数据速率、S-MeNB不能提供较高数据速率、且UE没有搜索到可提供高数据速率T-MeNB的情况。当Role Exchange Request中携带S-MeNB release request时，该流程可实现S-MeNB到S-SeNB的切换，也是一种双连接到单连接的切换方式。
(4)第一基站为源主基站(S-MeNB)，所述第二基站为目的主基站(T-MeNB)；所述切换请求用于指示所述目的主基站触发执行从源主基站和源辅基站的双连接切换到目的主基站和目的辅基站(T-SeNB)的新的双连接的流程，属于双连接切换到双连接的切换方式。
此种情况适用于UE希望支持多连接的情况，也适用于T-MeNB和T-SeNB可以提供更高数据速率的情况。
在本实施例中，可选地，所述切换方法还包括：根据UE上报的UE偏好，为UE配置测量上报相关参数；将为UE配置的测量上报相关参数发送给UE，由所述UE根据所述测量上报相关参数进行测量得到UE测量结果。该测量上报相关参数可以通过RRC重配置消息的MeasConfig下发给UE。
进一步地，测量上报相关参数包括但不限于Ofn、Ocn、Ofs和Ocs中的一项或多项组合。
在本实施例中，第一基站根据UE测量结果和UE偏好，确定第二基站，向所述第二基站发送切换请求；其中，UE测量结果是UE根据第一基站下发的测量上报相关参数测量得到的，测量上报相关参数是第一基站基于UE偏好为UE配置的，实现针对双连接的切换，实现基于UE偏好的切换，使UE优先切换到可以保证其高数据速率的基站。进一步，基于UE上报的对功率消耗的偏好、对高数据速率的偏好或对双连接的偏好，保证UE优先切换到高数据速率频率(例如5G频率)，保证了UE的数据速率。
参见图2，图中示出了切换方法的流程，该方法的执行主体可以是终端(UE)，具体步骤如下：
步骤201、向第一基站发送UE测量结果和UE偏好，由所述第一基站根据UE测量结果和UE偏好确定第二基站，并向所述第二基站发送切换请求；
其中，所述UE测量结果是UE根据所述第一基站下发的测量上报相关参数测量得到的，所述测量上报相关参数是所述第一基站基于UE偏好为所述UE配置的。
在本实施例中，UE测量结果是UE根据第一基站下发的测量上报相关参数测量得到的，该测量上报相关参数是所述第一基站基于UE偏好为UE配置的，该测量上报相关参数包括但不限于：Ofn、Ocn、Ofs和/或Ocs。
在本实施例中，UE偏好用于表示UE始终希望保持高数据速率，或者希望始终保持双连接。
可选地，该UE偏好包括：对功率消耗的偏好(PowerPrefIndicationConfig)、对高数据速率的偏好(HighDataRatePrefIndicationConfig)或者对双连接的偏好(DualConnectivityPrefIndicationConfig)，当然也并不限于此。
在本实施例中，可以通过以下方式向第一基站发送UE偏好：
接收所述第一基站发送的UE对功率消耗的偏好PowerPrefIndication、UE对高数据速率的偏好HighDataRatePrefIndication和UE对双连接的偏好DualConnectivityPrefIndication中的一项或多项的偏好请求，可选地，请求携带在RRC重配置消息中；或者该请求通过终端能力查询(UECapabilityEnquiry) 消息下发给UE。
然后，向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
例如通过终端辅助信息(UEAssistanceInformation)向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项；或者通过接收终端能力信息(UECapabilityInformation)消息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
在本实施例中，根据第一基站和第二基站的类型，切换请求用于触发不同的切换流程：
(1)第一基站为源主基站(Source MeNB，以下称为S-MeNB)，所述第二基站为目的基站(Target eNB，以下称为T-eNB)；所述切换请求用于指示所述目的基站触发执行源主基站和源辅基站切换到目的基站的切换流程，属于双连接切换到单连接的切换方式。
此种情况适用于UE对多连接不感兴趣的情况，也适用于UE对高速数据速率感兴趣(单连接基站可以提供比双连接更高的数据速率)或不感兴趣的情况。
(2)第一基站为源主基站(S-MeNB)，所述第二基站为目的主基站(T-MeNB)；所述切换请求用于指示所述目的主基站触发执行保持UE与源辅基站(S-SeNB)连接不变，只将源主基站(S-MeNB)切换到目的主基站(T-MeNB)的流程，属于双连接切换到双连接的切换方式。
此种情况适用于UE希望支持多连接的情况，也适用于S-SeNB可以提供高数据速率、而S-MeNB不能提供较高数据速率的情况。
(3)第一基站为源主基站(S-MeNB)，所述第二基站为源辅基站(S-SeNB)；所述切换请求用于指示所述源辅基站触发执行源主基站与源辅基站之间切换的角色互换的流程；
进一步地，该切换请求中携带源主基站释放请求消息(S-MeNB release request)，该源主基站释放请求消息用于指示是否释放源主基站(S-MeNB release request)。
此种情况适用于UE希望支持多连接的情况，也适用于S-SeNB可以提供高数据速率、S-MeNB不能提供较高数据速率、且UE没有搜索到可提供高数据速率T-MeNB的情况。当Role Exchange Request中携带S-MeNB release request时，该流程可实现S-MeNB到S-SeNB的切换，也是一种双连接到单连接的切换方式。
(4)第一基站为源主基站(S-MeNB)，所述第二基站为目的主基站(T-MeNB)；所述切换请求用于指示所述目的主基站触发执行从源主基站和源辅基站的双连接切换到目的主基站和目的辅基站(T-SeNB)的新的双连接的流程，属于双连接切换到双连接的切换方式。
此种情况适用于UE希望支持多连接的情况，也适用于T-MeNB和T-SeNB可以提供更高数据速率的情况。
在本实施例中，第一基站根据UE测量结果、UE能力、以及UE偏好中的一项或多项，确定第二基站，向所述第二基站发送切换请求；其中，UE测量结果是UE根据第一基站下发的测量上报相关参数测量得到的，测量上报相关参数是第一基站基于UE偏好为UE配置的，实现针对双连接的切换，实现基于UE偏好的切换，使UE优先切换到可以保证其高数据速率的基站。进一步，基于UE上报的对功率消耗的偏好、对高数据速率的偏好或对双连接的偏好，保证UE优先切换到高数据速率频率(例如5G频率)，保证了UE的数据速率。
实施例一：由双连接切换基站到单连接基站，参见图3，具体步骤如下：
步骤1、S-MeNB(源主基站)向UE(终端)发送RRCconnectionReconfiguration(RRC连接重配置)消息，该RRCconnectionReconfiguration消息中可以包含HighDataRatePrefIndicationConfig(高数据速率偏好配置)；
步骤2、UE向S-MeNB发送UEAssistanceInformation(终端辅助信息)，该UEAssistanceInformation包含HighDataRatePrefIndication(高数据速率偏好)；
步骤3、S-MeNB向UE发送RRCconnectionreconfiguration消息，该RRCconnectionreconfiguration消息中可以包含MeasConfig(测量配置)；
步骤4、UE向S-MeNB发送MeasurementReport(测量报告)；
步骤5、S-MeNB向T-eNB(目的基站)发送Handover Request(切换请求) 消息；
步骤6、T-eNB向S-MeNB发送Handover Request Acknowledge(切换请求应答)消息；
步骤7、S-MeNB向S-SeNB(源辅基站)发送SeNB Release Request(辅基站释放请求)消息；
步骤8、S-MeNB向UE发送RRCConnectionReconfiguration消息；
步骤9、在UE和T-eNB之间进行Random Access Procedure(随机接入过程)；
步骤10、UE向T-eNB发送RRCConnectionReconfigurationComplete(RRC连接重配置完成)消息；
步骤11、T-eNB向S-GW(服务网关)发送Path Switch Request(路径切换请求)消息；
步骤12、在S-GW和MME进行Bearer Modification(承载修改)；
步骤13、MME向S-GW发送Path Swtich Request Acknowledge(路径切换请求应答)消息；
步骤14、T-eNB通知S-MeNB UE Context Release(终端上下文释放)；
步骤15、S-MeNB通知S-SeNB UE Context Release。
实施例二：保持S-SeNB连接不变，只将S-MeNB切换到T-MeNB，参见图4，具体步骤如下：
步骤1、S-MeNB(源主基站)向UE(终端)发送RRCconnectionReconfiguration(RRC连接重配置)消息，该RRCconnectionReconfiguration消息中可以包含HighDataRatePrefIndicationConfig(高数据速率偏好配置)；
步骤2、UE向S-MeNB发送UEAssistanceInformation(终端辅助信息)，该UEAssistanceInformation包含HighDataRatePrefIndication(高数据速率偏好)；
步骤3、S-MeNB向UE发送RRCconnectionreconfiguration消息，该RRCconnectionreconfiguration消息中可以包含MeasConfig(测量配置)；
步骤4、UE向S-MeNB发送MeasurementReport(测量报告)；
步骤5、S-MeNB向T-MeNB(目的基站)发送Handover Request(切换请求)消息；
步骤6、T-MeNB向SeNB(辅基站)发送SeNB Addition Request(SeNB附加请求)；
步骤7、SeNB向T-MeNB发送SeNB Addition Request ACK(SeNB附加请求应答)；
步骤8、T-MeNB向S-MeNB发送Handover Request Acknowledge(切换请求应答)；
步骤9、S-MeNB向SeNB发送SeNB Release Request(SeNB释放请求)；
步骤10、S-MeNB向UE发送RRCConnectionReconfiguration；
步骤11、在UE和T-MeNB之间进行Random Access Procedure(随机接入过程)；
步骤12、UE向T-MeNB发送RRCConnectionReconfigurationComplete(RRC连接重配置完成)消息；
步骤13、在UE和SeNB之间进行Random Access Procedure(随机接入过程)；
步骤14、T-MeNB向SeNB发送SeNB Reconfiguration Complete(SeNB重配置完成)消息；
步骤15、T-MeNB向MME发送Path Switch Request(路径切换请求)消息；
步骤16、在S-GW和MME进行Bearer Modification(承载修改)；
步骤17、MME向T-MeNB发送Path Swtich Request Acknowledge(路径切换请求应答)消息；
步骤18、T-MeNB通知S-MeNB UE Context Release(终端上下文释放)；
步骤19、S-MeNB通知SeNB UE Context Release。
实施例三：S-MeNB与S-SeNB角色互换
S-MeNB根据UE测量结果、并结合PowerPrefIndication或HighDataRatePrefIndication或DualConnectivityPrefIndication，向S-SeNB发送Role Exchange Request(角色互换请求)，进行MeNB和SeNB角色互换。此种情况适用于S-MeNB信号质量较差、S-SeNB信号质量较好，同时UE没有搜到其他支持多连接的、信号更好的频点。
在本实施例中，Role Exchange Request中需要携带切换相关参数，如目标小区ID，KeNB，AS配置，E-RAB context；
进一步地，Role Exchange Request中还需要携带源MCG的配置；
进一步地，Role Exchange Request中还可能携带S-MeNB release request，该消息用于指示是否释放S-MeNB；当S-SeNB收到S-MeNB release request时，S-SeNB还会给S-MeNB发送一条UE Context Release消息，告知S-MeNB释放UE上下文。
参见图5，具体步骤如下：
步骤1、S-MeNB或者T-SeNB向UE发送RRCconnectionReconfiguration(RRC连接重配置)消息，该RRCconnectionReconfiguration消息中可以包含HighDataRatePrefIndicationConfig(高数据速率偏好配置)；
步骤2、UE向S-MeNB或者T-SeNB发送UEAssistanceInformation(终端辅助信息)，该UEAssistanceInformation包含HighDataRatePrefIndication(高数据速率偏好)；
步骤3、S-MeNB或者T-SeNB向UE发送RRCconnectionreconfiguration消息，该RRCconnectionReconfiguration消息中可以包含MeasConfig(测量配置)；
步骤4、UE向S-MeNB或者T-SeNB发送MeasurementReport(测量报告)；
步骤5、S-MeNB或者T-SeNB向S-SeNB或者T-MeNB发送Role Exchange Request(角色互换请求)消息，Role Exchange Request消息包括：HO(HandOver，切换)相关参数，S-MCG配置，还可能包括S-MeNB release request消息。
步骤6、S-SeNB或者T-MeNB向S-MeNB或者T-SeNB发送Role Exchange Request Acknowledge(角色互换请求应答)消息；
步骤7、S-MeNB或者T-SeNB向UE发送RRCconnectionReconfiguration消息；
步骤8、UE向S-SeNB或者T-MeNB发送RRCconnectionReconfigurationComplete消息；
步骤9、S-SeNB或者T-MeNB向MME发送Path Switch Request；
步骤10、在S-GW和MME进行Bearer Modification(承载修改)；
步骤11、MME向S-SeNB或者T-MeNB发送Path Swtich Request Acknowledge(路径切换请求应答)消息；
步骤12、S-SeNB或者T-MeNB通知S-MeNB或者T-SeNB UE Context Release(终端上下文释放)；
步骤13、S-MeNB或者T-SeNB通知S-SeNB或者T-MeNB UE Context Release。
本公开实施例中还提供了一种第一基站，由于该第一基站解决问题的原理与本公开实施例图1～图5中切换方法相似，因此该第一基站的实施可以参见方法的实施，重复之处不再敷述。
参见图6，图中示出了第一基站的框图，该第一基站600包括：第一处理器601、第一接收器602和第一发送器603，其中：
第一接收器602用于获取终端UE测量结果和UE偏好；
第一发送器603用于根据UE测量结果和UE偏好确定第二基站，向所述第二基站发送切换请求；
其中，所述UE测量结果是UE根据所述第一基站下发的基于UE偏好配置的测量上报相关参数测量得到的。
在本实施例中，可选地，所述第一基站为源主基站，所述第二基站为目的基站；所述切换请求用于指示所述目的基站触发执行源主基站和源辅基站切换到目的基站的切换流程；或者
所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行保持UE与源辅基站连接不变，只将源主基站切换到目的主基站的流程；或者
所述第一基站为源主基站，所述第二基站为源辅基站；所述切换请求用于指示所述源辅基站触发执行源主基站与源辅基站之间切换的角色互换的流程；或者
所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行从源主基站和源辅基站的双连接切换到目的主基站和目的辅基站的新的双连接的流程。
在本实施例中，可选地，当所述切换请求用于指示所述第二基站触发执行源主基站与源辅基站之间切换的角色互换的流程时，所述切换请求中携带源主基站释放请求消息，该源主基站释放请求消息用于指示是否释放源主基站。
在本实施例中，可选地，所述第一发送器603：用于向UE发送UE对功 率消耗的偏好PowerPrefIndication、对高数据速率的偏好HighDataRatePrefIndication和对双连接的偏好DualConnectivityPrefIndication中的一项或多项的偏好请求；
所述第一接收器602进一步用于：用于获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
在本实施例中，可选地，所述偏好请求通过RRC重配置消息下发给UE；或者
所述偏好请求通过终端能力查询UECapabilityEnquiry消息下发给UE。
在本实施例中，可选地，第一处理器601用于从所述第一接收器602接收的终端辅助信息UEAssistanceInformation获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项；或者
所述第一处理器601用于从所述第一接收器602接收的终端能力信息UECapabilityInformation消息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
如果第一基站通过RRC重配置消息请求UE偏好，那么UE通过UEAssistanceInformation消息将UE偏好反馈给第一基站；
如果第一基站通过UECapabilityEnquiry消息请求UE偏好，那么UE通过UECapabilityInformation消息将UE偏好反馈给第一基站。
在本实施例中，可选地，第一处理器601还用于根据UE上报的UE偏好，为UE配置测量上报相关参数；
所述第一发送器603还用于将为UE配置的测量上报相关参数发送给UE，由所述UE根据所述测量上报相关参数进行测量得到UE测量结果。
本实施例提供的第一基站，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例中还提供了一种UE，由于该UE解决问题的原理与本公开实施例图2中切换方法相似，因此该装置的实施可以参见方法的实施，重复之处不再敷述。
参见图7，图中示出了UE的框图，该UE 700包括：第二接收器701、第二发送器702和第二处理器703，其中：
第二发送器702用于向第一基站发送UE测量结果和UE偏好，由所述第一基站根据UE测量结果和UE偏好确定第二基站，并向所述第二基站发送切换请求；
其中，所述UE测量结果是UE根据所述第一基站下发的基于UE偏好配置的测量上报相关参数测量得到的。
在本实施例中，可选地，所述第一基站为源主基站，所述第二基站为目的基站；所述切换请求用于指示所述目的基站触发执行源主基站和源辅基站切换到目的基站的切换流程；或者
所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行保持UE与源辅基站连接不变，只将源主基站切换到目的主基站的流程；或者
所述第一基站为源主基站，所述第二基站为源辅基站；所述切换请求用于指示所述源辅基站触发执行源主基站与源辅基站之间切换的角色互换的流程；或者
所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行从源主基站和源辅基站的双连接切换到目的主基站和目的辅基站的新的双连接的流程。
在本实施例中，可选地，当所述切换请求用于指示所述第二基站触发执行源主基站与源辅基站之间切换的角色互换的流程时，所述切换请求中携带源主基站释放请求消息，该源主基站释放请求消息用于指示是否释放源主基站。
在本实施例中，可选地，所述第二接收器701用于接收所述第一基站发送的UE对功率消耗的偏好PowerPrefIndication、UE对高数据速率的偏好HighDataRatePrefIndication和UE对双连接的偏好DualConnectivityPrefIndication中的一项或多项的偏好请求；
第二发送器702还用于向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
在本实施例中，可选地，所述偏好请求携带在RRC重配置消息中；或者
所述偏好请求通过终端能力查询UECapabilityEnquiry消息下发给UE。
在本实施例中，可选地，所述第二发送器702还用于通过终端辅助信息UEAssistanceInformation向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项；或者通过接收终端能力信息UECapabilityInformation消息向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
下述实施例中还提供一种第一基站和终端的硬件结构示意图。
参见图8，是本公开实施例应用的基站的结构图，能够实现与图1～图5对应实施例中的切换方法的细节，并达到相同的效果。如图8所示，基站800包括：处理器801、收发机802、存储器803、用户接口804和总线接口，其中：
在本公开实施例中，基站800还包括：存储在存储器上803并可在处理器801上运行的计算机程序，计算机程序被处理器801执行时实现如下步骤：获取终端UE测量结果和UE偏好；根据UE测量结果和UE偏好确定第二基站，向所述第二基站发送切换请求。
在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器801代表的一个或多个处理器和存储器803代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机802可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口804还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器801负责管理总线架构和通常的处理，存储器803可以存储处理器801在执行操作时所使用的数据。
可选的，计算机程序被处理器803执行时还可实现如下步骤：向UE发送UE对功率消耗的偏好PowerPrefIndication、对高数据速率的偏好HighDataRatePrefIndication和对双连接的偏好DualConnectivityPrefIndication中的一项或多项的偏好请求；获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
可选的，计算机程序被处理器803执行时还可实现如下步骤：通过接收终端辅助信息UEAssistanceInformation获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项；或者
通过接收终端能力信息UECapabilityInformation消息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
可选的，计算机程序被处理器803执行时还可实现如下步骤：
根据UE上报的UE偏好，为UE配置测量上报相关参数；
将为UE配置的测量上报相关参数发送给UE。
图9为本公开另一实施例提供的终端的结构示意图。如图9所示，图9所示的终端900包括：至少一个处理器901、存储器902、至少一个网络接口904和用户接口903。终端900中的各个组件通过总线系统905耦合在一起。可理解，总线系统905用于实现这些组件之间的连接通信。总线系统905除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图9中将各种总线都标为总线系统905。
其中，用户接口903可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开实施例中的存储器902可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例 描述的系统和方法的存储器902旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器902保存了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统9021和应用程序9022。
其中，操作系统9021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序9022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序9022中。
在本公开实施例中，通过调用存储器902保存的程序或指令，具体的，可以是应用程序9022中保存的程序或指令，处理器901可以执行上述终端所执行的方法。
上述本公开实施例揭示的方法可以应用于处理器901中，或者由处理器901实现。处理器901可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器901中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器901可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的保存介质中。该保存介质位于存储器902，处理器901读取存储器902中的信息，结合其硬件完成上述方法的步骤。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一 个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可保存在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
具体地，处理器901可以调用存储器902保存的程序或指令，执行以下流程：向第一基站发送UE测量结果和UE偏好，其中，所述UE测量结果是UE根据所述第一基站下发的基于UE偏好配置的测量上报相关参数测量得到的。
具体地，处理器901可以调用存储器902保存的程序或指令，执行以下流程：
接收所述第一基站发送的UE对功率消耗的偏好PowerPrefIndication、UE对高数据速率的偏好HighDataRatePrefIndication和UE对双连接的偏好DualConnectivityPrefIndication中的一项或多项的偏好请求；
向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
具体地，处理器901可以调用存储器902保存的程序或指令，执行以下流程：通过终端辅助信息UEAssistanceInformation向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项；或者通过接收终端能力信息UECapabilityInformation消息向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
本公开实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如上所述数据切换方法的实施例中的步骤。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施 例有关的特定特征、结构或特性包括在本公开的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本公开的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常可互换使用。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
在本申请所提供的几个实施例中，应该理解到，所揭露方法和装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络侧设备 等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述的是本公开的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以做出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (25)

  1. 一种切换方法，应用于第一基站，包括：
    获取终端UE测量结果和UE偏好；
    根据UE测量结果和UE偏好确定第二基站，向所述第二基站发送切换请求。
  2. 根据权利要求1所述的切换方法，其中，
    所述第一基站为源主基站，所述第二基站为目的基站；所述切换请求用于指示所述目的基站触发执行源主基站和源辅基站切换到目的基站的切换流程；或者
    所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行保持UE与源辅基站连接不变，只将源主基站切换到目的主基站的流程；或者
    所述第一基站为源主基站，所述第二基站为源辅基站；所述切换请求用于指示所述源辅基站触发执行源主基站与源辅基站之间切换的角色互换的流程；或者
    所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行从源主基站和源辅基站的双连接切换到目的主基站和目的辅基站的新的双连接的流程。
  3. 根据权利要求2所述的切换方法，其中，所述切换请求中携带源主基站释放请求消息，该源主基站释放请求消息用于指示是否释放源主基站。
  4. 根据权利要求1所述的切换方法，其中，所述获取UE偏好，包括：
    向UE发送UE对功率消耗的偏好PowerPrefIndication、对高数据速率的偏好和对双连接的偏好中的一项或多项的偏好请求；
    获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
  5. 根据权利要求4所述的切换方法，其中，所述偏好请求通过RRC重配置消息下发给UE；或者
    所述偏好请求通过终端能力查询UECapabilityEnquiry消息下发给UE。
  6. 根据权利要求4所述的切换方法，其中，所述获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对多连接的偏好中的一项或多项，包括：
    通过接收终端辅助信息UEAssistanceInformation获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项；或者
    通过接收终端能力信息UECapabilityInformation消息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
  7. 根据权利要求1所述的切换方法，其中，所述切换方法还包括：
    根据UE上报的UE偏好，为UE配置测量上报相关参数；
    将为UE配置的测量上报相关参数发送给UE。
  8. 一种切换方法，应用于终端UE，包括：
    向第一基站发送UE测量结果和UE偏好；
    其中，所述UE测量结果是UE根据所述第一基站下发的基于UE偏好配置的测量上报相关参数测量得到的。
  9. 根据权利要求8所述的切换方法，其中，所述向第一基站发送UE偏好，包括：
    接收所述第一基站发送的UE对功率消耗的偏好PowerPrefIndication、UE对高数据速率的偏好和UE对双连接的偏好中的一项或多项的偏好请求；
    向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
  10. 根据权利要求9所述的切换方法，其中，所述偏好请求携带在RRC重配置消息中；或者
    所述偏好请求通过终端能力查询UECapabilityEnquiry消息下发给UE。
  11. 根据权利要求9所述的切换方法，其中，所述向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项，包括：
    通过终端辅助信息UEAssistanceInformation向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项；或者
    通过接收终端能力信息UECapabilityInformation消息向所述第一基站发 送对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
  12. 一种第一基站，包括：第一处理器、第一接收器和第一发送器，其中，
    所述第一接收器用于获取终端UE测量结果和UE偏好；
    所述第一发送器，用于根据UE测量结果和UE偏好确定第二基站，向所述第二基站发送切换请求。
  13. 根据权利要求12所述的第一基站，其中，
    所述第一基站为源主基站，所述第二基站为目的基站；所述切换请求用于指示所述目的基站触发执行源主基站和源辅基站切换到目的基站的切换流程；或者
    所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行保持UE与源辅基站连接不变，只将源主基站切换到目的主基站的流程；或者
    所述第一基站为源主基站，所述第二基站为源辅基站；所述切换请求用于指示所述源辅基站触发执行源主基站与源辅基站之间切换的角色互换的流程；或者
    所述第一基站为源主基站，所述第二基站为目的主基站；所述切换请求用于指示所述目的主基站触发执行从源主基站和源辅基站的双连接切换到目的主基站和目的辅基站的新的双连接的流程。
  14. 根据权利要求13所述的第一基站，其中，所述切换请求中携带源主基站释放请求消息，该源主基站释放请求消息用于指示是否释放源主基站。
  15. 根据权利要求12所述的第一基站，其中，
    所述第一发送器进一步用于：用于向UE发送UE对功率消耗的偏好PowerPrefIndication、对高数据速率的偏好和对双连接的偏好中的一项或多项的偏好请求；
    所述第一接收器进一步用于：用于获取UE上报的对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
  16. 根据权利要求15所述的第一基站，其中，所述偏好请求通过RRC 重配置消息下发给UE；或者
    所述偏好请求通过终端能力查询UECapabilityEnquiry消息下发给UE。
  17. 根据权利要求15所述的第一基站，其中，所述第一处理器用于从所述第一接收器接收的终端辅助信息UEAssistanceInformation中获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项；或者
    所述第一处理器用于从所述第一接收器接收的终端能力信息UECapabilityInformation消息获取UE上报的对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
  18. 根据权利要求12所述的第一基站，其中，
    所述第一处理器还用于根据UE上报的UE偏好，为UE配置测量上报相关参数；
    所述第一发送器还用于将为UE配置的测量上报相关参数发送给UE。
  19. 一种终端UE，包括：第二接收器、第二发送器和第二处理器，其中：
    所述第二发送器用于向第一基站发送UE测量结果和UE偏好，所述UE测量结果是UE根据所述第一基站下发的基于UE偏好配置的测量上报相关参数测量得到的。
  20. 根据权利要求19所述的UE，其中，
    所述第二接收器用于接收所述第一基站发送的UE对功率消耗的偏好PowerPrefIndication、UE对高数据速率的偏好和UE对双连接的偏好中的一项或多项的偏好请求；
    所述第二发送器还用于向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好中的一项或多项。
  21. 根据权利要求20所述的UE，其中，所述偏好请求携带在RRC重配置消息中；或者
    所述偏好请求通过终端能力查询UECapabilityEnquiry消息下发给UE。
  22. 根据权利要求21所述的UE，其中，
    所述第二发送器还用于通过终端辅助信息UEAssistanceInformation向所述第一基站发送对功率消耗的偏好、对高数据速率的偏好和对双连接的偏好 中的一项或多项；或者
    所述第二发送器还用于通过接收终端能力信息UECapabilityInformation消息向所述第一基站对功率消耗的偏好、对高数据速率的偏好以及对多连接的偏好中的一项或多项。
  23. 一种第一基站，包括：存储器、处理器及保存在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现如权利要求1～7任一项所述的切换方法中的步骤。
  24. 一种终端，包括：存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现如权利要求8～11任一项所述的切换方法中的步骤。
  25. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1～7任一项所述的切换方法中的步骤，或者实现如权利要求8～11任一项所述的切换方法中的步骤。
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