WO2019010713A1 - 终端切换的方法、装置以及基站和存储介质 - Google Patents

终端切换的方法、装置以及基站和存储介质 Download PDF

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Publication number
WO2019010713A1
WO2019010713A1 PCT/CN2017/093051 CN2017093051W WO2019010713A1 WO 2019010713 A1 WO2019010713 A1 WO 2019010713A1 CN 2017093051 W CN2017093051 W CN 2017093051W WO 2019010713 A1 WO2019010713 A1 WO 2019010713A1
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WIPO (PCT)
Prior art keywords
terminal
frequency range
base station
target
uplink
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PCT/CN2017/093051
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English (en)
French (fr)
Inventor
黄晓庆
王振凯
江海涛
Original Assignee
深圳前海达闼云端智能科技有限公司
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Application filed by 深圳前海达闼云端智能科技有限公司 filed Critical 深圳前海达闼云端智能科技有限公司
Priority to CN201780001953.1A priority Critical patent/CN107820719B/zh
Priority to PCT/CN2017/093051 priority patent/WO2019010713A1/zh
Publication of WO2019010713A1 publication Critical patent/WO2019010713A1/zh

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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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure

Definitions

  • the present disclosure relates to the field of information management, and in particular, to a method, an apparatus, and a base station and a storage medium for terminal handover.
  • the uplink coverage of the system is less than that of the downlink coverage, which affects the transmission of uplink data.
  • the gap between the two is more obvious. Therefore, the high and low frequency bands need to be considered.
  • the uplink frequency of the low frequency band is used for uplink data transmission.
  • the high frequency band may include frequencies of 28 GHz and 3.5 GHz for providing capacity, and the low frequency band may include frequencies of 900 MHz or the like. Used to provide coverage.
  • the terminal can only send an access request on the uplink carrier included in the uplink working frequency range supported by the target cell, and the uplink carrier included in the uplink working frequency range tends to have a higher frequency and coverage. Therefore, the failure rate of the terminal to send a random access request on the uplink carrier included in the uplink working frequency range is high, resulting in a large probability of handover failure.
  • the present disclosure provides a method, an apparatus, and a base station and a storage medium for terminal handover.
  • a method for a terminal handover is applied to a target base station, including: receiving a terminal handover request message sent by a serving base station; wherein the terminal handover request message includes Receiving, by the terminal, the first measurement power of the downlink reference signal or the downlink synchronization signal of the target base station; sending a handover request response message to the serving base station, where the handover request response message includes the terminal sending a random access request at the target base station corresponding Target uplink carrier.
  • a method for terminal handover is provided, which is applied to a serving base station, including: acquiring a first measurement power of a downlink reference signal or a downlink synchronization signal of a terminal receiving a target base station, and receiving the service by the terminal And a second measurement power of the downlink reference signal or the downlink synchronization signal of the base station; when the difference between the first measurement power and the second measurement power is greater than a preset threshold, sending a terminal handover request message to the target base station, where The terminal handover request message includes the first measurement power; receiving a handover request response sent by the target base station; the handover request response includes a target uplink carrier used by the terminal to send a random access request at the target base station; And transmitting a handover instruction, where the handover instruction includes the target uplink carrier.
  • a device for terminal handover which is applied to a target base station, and includes: a receiving module, configured to receive a terminal handover request message sent by a serving base station; where the terminal handover request message includes The terminal receives the first measurement power of the downlink reference signal or the downlink synchronization signal of the target base station, and the sending module is configured to send a handover request response message to the serving base station, where the handover request response message includes the terminal at the target base station Send the target uplink carrier corresponding to the random access request.
  • a device for terminal handover which is applied to a serving base station, and includes: an acquiring module, configured to acquire, by a terminal, a first measurement power of a downlink reference signal or a downlink synchronization signal of a target base station, and The terminal receives the second measurement power of the downlink reference signal or the downlink synchronization signal of the serving base station, and the request sending module is configured to: when the difference between the first measurement power and the second measurement power is greater than a preset threshold, The target base station sends a terminal handover request message, where the terminal handover request message includes the first measurement power, and the response receiving module is configured to receive a handover request response sent by the target base station; the handover request response includes The target uplink station sends a target uplink carrier of the random access request, and the command sending module is configured to send a handover instruction to the terminal, where the handover instruction includes the target uplink carrier.
  • a computer readable storage medium includes one or more programs for performing the method of the first aspect described above.
  • a target base station comprising: the non-transitory computer readable storage medium of the above fifth aspect; and one or more processors for executing the computer readable A program in a storage medium.
  • a computer readable storage medium comprising one or more programs, the one or more programs for performing the second aspect described above Methods.
  • a service base station comprising: the computer readable storage medium of the above seventh aspect; and one or more processors for executing the computer readable storage medium program of.
  • a terminal handover request message sent by the serving base station where the terminal handover request message includes a first measurement power of the downlink reference signal or the downlink synchronization signal received by the terminal by the terminal, and the terminal Supporting a first working frequency band; determining, according to the terminal handover request message, a target uplink carrier allocated to the terminal; transmitting, to the serving base station, resource information for initiating random access, where the resource information includes the target uplink Carrier information of the carrier, so that the serving base station sends a handover instruction including the resource information and the base station identifier of the target base station to the terminal, and the terminal sends a random to the target base station according to the base station identifier and resource information. Access request message.
  • the handover request response message sent by the target base station to the serving base station includes the target uplink carrier, so that the terminal can perform random access on the target uplink carrier to complete the terminal handover, thereby avoiding the uplink working frequency that the terminal can only support in the target cell.
  • the access request is sent on the uplink carrier included in the range, thereby improving the success rate of the terminal when switching.
  • FIG. 1 is a schematic flowchart diagram of a method for handover of a terminal according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of another method for handover of a terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart diagram of a third terminal handover method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an apparatus for switching a terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another apparatus for switching a terminal according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a device for switching a third terminal according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a device for switching a terminal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a device for switching a terminal according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of hardware of a device for terminal handover according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of hardware of another apparatus for terminal handover according to an embodiment of the present invention.
  • the network device and the terminal may be included in the system.
  • the network device may be a base station (BS).
  • the base station is a device that communicates with the terminal, and may provide communication coverage of a specific physical area.
  • the base station may be an evolved base station (EBB or eNodeB) in LTE, or may be another access network device in the wireless communication network that provides access services.
  • EBB evolved base station
  • eNodeB evolved base station
  • the terminals can be distributed throughout the mobile communication system, and each terminal can be static or mobile.
  • the terminal may be a mobile station, a subscriber unit, a station, or a cellular phone, a personal digital assistant (PDA), a handheld device ( Handheld), a wireless communication device such as a laptop computer.
  • PDA personal digital assistant
  • Handheld handheld device
  • wireless communication device such as a laptop computer.
  • a carrier of a high frequency band and a carrier of a low frequency band may be paired,
  • the two independent frequency bands form a natural frequency pairing, and the secondary carrier is not required to be activated or the secondary carrier is deactivated in a manner similar to carrier aggregation, thereby avoiding the configuration delay and complexity overhead of carrier aggregation.
  • the 3300-3800MHz band can be paired with the 880-915MHz (FDD system) upstream band.
  • the downlink data is carried in the frequency range of 3300-3800 MHz
  • the uplink data is carried in the frequency range of 3300-3800 MHz and/or 880-915 MHz.
  • the uplink data may be carried by using the frequency range of 3300-3800 MHz
  • the uplink data may be carried by the frequency range of 880-915 MHz. Therefore, for a single terminal, only one uplink frequency works at the same time, and for a network device, it can work at multiple uplink frequencies at the same time. It not only ensures the coverage of the network by the network, but also increases the power consumption of the terminal.
  • FIG. 1 is a method for terminal handover according to the disclosure. As shown in FIG. 1 , the method is applied to a target base station, including:
  • the terminal handover request message includes a first measurement power that the terminal receives the downlink reference signal or the downlink synchronization signal of the target base station.
  • the target base station sends the handover request response message to the serving base station, including the target uplink carrier, so that the terminal can perform random access on the target uplink carrier to complete the terminal handover, and avoid the uplink that the terminal can only support in the target cell.
  • the access request is sent on the uplink carrier included in the working frequency range, thereby improving the success rate of the terminal when switching.
  • FIG. 2 is a method for terminal handover according to the disclosure. As shown in FIG. 2, the method is applied to a serving base station, including:
  • the handover request response includes a target uplink carrier used by the terminal to send a random access request at the target base station.
  • the terminal After receiving the handover instruction, the terminal sends a random intervention request to the target base station on the target uplink carrier to complete the terminal handover.
  • the serving base station obtains the target uplink carrier from the target base station, and informs the terminal of the target uplink carrier by using the handover instruction, so that the terminal can perform random access on the target uplink carrier to complete the terminal handover, thereby avoiding that the terminal can only be in the terminal.
  • the access request is sent on the uplink carrier included in the uplink working frequency range supported by the target cell, thereby improving the success rate of the terminal when switching.
  • FIG. 3 is a schematic diagram of a terminal handover method according to the present disclosure. As shown in FIG. 3, the method includes:
  • the terminal reports, to the serving base station, the first measurement power that the terminal receives the downlink reference signal or the downlink synchronization signal of the target base station.
  • the terminal reports, to the serving base station, the second measurement power of the downlink reference signal or the downlink synchronization signal that the terminal receives the serving base station.
  • the serving base station acquires the first working frequency band supported by the terminal when determining that the difference between the first measurement power and the second measurement power is greater than or equal to a preset threshold.
  • the serving base station may acquire the first working frequency band from the terminal; or the serving base station acquires the first working frequency band from the core network device.
  • the serving base station sends a terminal handover request message to the target base station.
  • the terminal handover request message includes the first measurement power and the first working frequency band.
  • the target base station After receiving the terminal handover request message, the target base station determines the second working frequency band supported by the target base station.
  • the target base station determines, according to the first working frequency band and the second working frequency band, a frequency band pairing combination supported by the terminal and the target base station.
  • the band pairing combination is composed of a third working frequency band composed of a first uplink frequency range and a first downlink frequency range and a supplementary uplink frequency band composed of a second uplink frequency range.
  • the frequency band pairing combination may include: a first uplink frequency range of 3300-3800 MHz, a first operating frequency range of 3300-3800 MHz, and a second uplink frequency range of 880-915 MHz.
  • the uplink data corresponding to the band pairing combination can be transmitted in two uplink frequency ranges, such as 3300-3800MHz and 880-915MHz, and the downlink data can be transmitted in a first downlink frequency range, such as 3300-3800MHz.
  • the target base station acquires a first preset threshold according to the frequency band pairing combination.
  • the first preset threshold value includes at least one threshold value, and the number of the at least one threshold value is the number of the third uplink frequency range minus one.
  • the first preset threshold may be configured according to the uplink frequency range supported by the target base station during network planning. Specifically, the first preset threshold may be based on the coverage area in each of the two uplink frequency ranges.
  • the measurement power of the downlink reference signal or the downlink synchronization signal corresponding to the coverage boundary position where the smaller uplink frequency range is located may be determined according to the coverage boundary position of the uplink frequency range where the coverage area is larger in each of the two uplink frequency ranges.
  • the measured power of the downlink reference signal or the downlink synchronization signal is determined.
  • the number of uplink frequency ranges included in the frequency band pairing combination is two.
  • the uplink frequency range included in the frequency band pairing combination is: the first uplink frequency range is 3300.
  • the first preset threshold value may be according to the first uplink frequency range and the second uplink frequency range, wherein the coverage area is smaller (ie, the first uplink frequency range is 3300) -3800MHz) where the coverage boundary is located Obtaining the measured power of the corresponding downlink reference signal or the downlink synchronization signal, or according to the first uplink frequency range and the second uplink frequency range, where the coverage area is larger (ie, the second uplink frequency range is 880-915 MHz) The measured power of the downlink reference signal or the downlink synchronization signal corresponding to the boundary position is obtained.
  • the measurement power of the downlink reference signal or the downlink synchronization signal is received at the coverage boundary of the uplink frequency range with a relatively small coverage in the uplink frequency range, and the delta is the preset redundancy, which is considered when the serving base station and the terminal perform the handover instruction interaction. Therefore, in order to switch to the frequency range covering the better low frequency band in advance when the frequency range limit coverage is not reached to the high frequency band to ensure the terminal switching success rate, the delta can be set to a positive value.
  • the above example is an example in which the frequency band pairing combination includes two uplink frequency ranges.
  • the disclosure is not limited thereto, and may also support two or more uplink frequency ranges, such as three or more, for example, the first preset.
  • the threshold value is determined by taking the downlink reference signal corresponding to the coverage boundary position of the uplink frequency range where the coverage area is smaller in the two uplink frequency ranges or the measurement power of the downlink synchronization signal as an example.
  • the frequency band pairing combination includes one first.
  • the uplink frequency range and the three second uplink frequency ranges may be respectively recorded as: R1, R2, R3, and R4, wherein, according to the size of the coverage of the uplink frequency range, the order is: R1 ⁇ R2 ⁇ R3 ⁇ R4, then
  • the manner of calculating the first preset threshold value may be used to calculate a first preset threshold value T1 corresponding to R1, a first preset threshold value T2 corresponding to R2, and a first preset threshold value T3 corresponding to R3, such that The resulting first preset threshold is (T1, T2, T3).
  • the target base station determines, according to the first measurement power and the first preset threshold, a target uplink carrier allocated to the terminal.
  • the target uplink carrier allocated to the terminal may be determined by any one of the following four methods:
  • Manner 1 When the first measurement power is less than the first preset threshold, determining that the carrier in the target uplink frequency range corresponding to the first preset threshold is the target uplink carrier, and the target uplink frequency range is the first uplink The frequency range or the second uplink frequency range.
  • Manner 2 When the first measurement power is greater than the first preset threshold, determine that the carrier in the target uplink frequency range corresponding to the first preset threshold is the target uplink carrier, and the target uplink frequency range is the first uplink The frequency range or the second uplink frequency range.
  • the first mode and the second mode are determined by the first preset threshold. For example, if the first preset threshold is based on the first uplink frequency range and the second uplink frequency range, the coverage area is smaller. If the measurement power of the downlink reference signal or the downlink synchronization signal corresponding to the coverage boundary location is obtained, the second method may be adopted. If the first preset threshold is based on the coverage area of the first uplink frequency range and the second uplink frequency range, If the measurement power of the downlink reference signal or the downlink synchronization signal corresponding to the coverage boundary position of the large uplink frequency range is obtained, the mode 1 may be adopted. Of course, the description is not limited herein.
  • the second uplink frequency range and the second uplink frequency range included in the frequency band pairing combination are R1, R2, R3, and R4, and the first preset threshold is (T1). T2 and T3) are described as an example. If it is determined that the first measurement power is greater than T1 and T2 and T3, and T1 is determined to be the maximum value among T1, T2, and T3, it is determined that the carrier in R1 is the target uplink carrier.
  • the target base station acquires the load of the carrier in the target uplink frequency range corresponding to each first preset threshold, and determines that the carrier with the smallest load is The target uplink carrier, the target uplink frequency range is the frequency range in the first uplink frequency range or the second uplink frequency range.
  • the load of the carrier in the target uplink frequency range corresponding to each first preset threshold is obtained, and the carrier with the smallest load is determined as the target uplink carrier.
  • the target uplink frequency range is the frequency range in the first uplink frequency range or the second uplink frequency range.
  • the third mode and the fourth mode are determined by the first preset threshold. For example, if the first preset threshold is based on the first uplink frequency range and the second uplink frequency range, the coverage area is smaller. If the measured power of the downlink reference signal or the downlink synchronization signal corresponding to the boundary position is obtained, the method may be adopted. If the first preset threshold is based on the first uplink frequency range and the second uplink frequency range, the coverage area is larger. If the measurement power of the downlink reference signal or the downlink synchronization signal corresponding to the coverage boundary position of the uplink frequency range is obtained, the method 3 may be adopted. Of course, the description is not limited herein.
  • the fourth uplink frequency range and the second uplink frequency range included in the frequency band pairing combination are R1, R2, R3, and R4, and the first preset threshold is (T1).
  • T2, T3) is used as an example. If it is determined that the first measurement power is greater than T1 and T2 and T3, it indicates that the carrier in the R1, R2, and R3 can initiate a random access request. In this case, R1 can be obtained separately.
  • the load of the carriers in R2 and R3, and determine that the carrier with the smallest load is the target uplink carrier.
  • the target base station sends a handover request response message to the serving base station.
  • the handover request response message may include at least one of target uplink carrier information and the following information: a modulation and coding mode used to send the random access request information, a power to send the random access request information, and a C- allocated to the terminal.
  • the RNTI Cell Radio Network Temporary Identifier
  • the target uplink carrier information may include: a center frequency of the target uplink carrier that transmits the random access request message and/or a bandwidth of the target uplink carrier.
  • the serving base station After receiving the handover request response message, the serving base station sends, to the terminal, the The resource information and the handover instruction of the base station identity of the target base station.
  • the terminal After receiving the handover instruction, the terminal sends a random access request to the target base station indicated by the base station identifier according to the resource information.
  • the target base station sends the handover request response message to the serving base station, including the target uplink carrier, so that the terminal can perform random access on the target uplink carrier to complete the terminal handover, and avoid the uplink that the terminal can only support in the target cell.
  • the access request is sent on the uplink carrier included in the working frequency range, thereby improving the success rate of the terminal when switching.
  • FIG. 4 is a device for switching a terminal according to an embodiment of the present disclosure. As shown in FIG. 4, the device is applied to a target base station, and the device includes:
  • the receiving module 401 is configured to receive a terminal handover request message sent by the serving base station, where the terminal handover request message includes a first measurement power that the terminal receives the downlink reference signal or the downlink synchronization signal of the target base station;
  • the sending module 402 is configured to send a handover request response message to the serving base station, where the handover request response message includes a target uplink carrier corresponding to the terminal sending the random access request by the target base station.
  • the method further includes:
  • the carrier determining module 403 is configured to determine, according to the terminal handover request message, a target uplink carrier allocated to the terminal.
  • the carrier determining module 403 is configured to obtain a first working frequency band supported by the terminal, and determine, according to the first working frequency band, a target uplink carrier that is allocated by the terminal.
  • the carrier determining module 403 is configured to obtain the first working frequency band by:
  • the device further includes:
  • a first determining module 404 configured to determine a second working frequency band supported by the target base station, and determine, according to the first working frequency band and the second working frequency band, a frequency band pairing combination supported by the terminal and the target base station;
  • the third working frequency band composed of the first uplink frequency range and the first downlink frequency range is combined with the supplementary uplink frequency band composed of the second uplink frequency range.
  • the carrier determining module 403 is configured to obtain a first preset threshold according to the frequency band pairing combination, and determine, according to the first measurement power and the first preset threshold, the uplink for sending The target uplink carrier of the random access request.
  • the first preset threshold includes at least one threshold, and the number of the threshold is a total number of the first uplink frequency range and the second uplink frequency range minus one.
  • the carrier determining module 403 is configured to determine, when the first measurement power is less than the first preset threshold, that the carrier in the target uplink frequency range corresponding to the first preset threshold is the target uplink carrier, where The target uplink frequency range is the first uplink frequency range or the second uplink frequency range; or, when the first measurement power is greater than the first preset threshold, determining a target uplink frequency corresponding to the first preset threshold
  • the carrier in the range is the target uplink carrier, and the target uplink frequency range is the first uplink frequency range or the second uplink frequency range.
  • the carrier determining module 403 is configured to: when the first measured power is less than the multiple preset thresholds, acquire a load of a carrier in a target uplink frequency range corresponding to each first preset threshold, and Determining that the carrier with the smallest load is the target uplink carrier, and the target uplink frequency range is the frequency range of the first uplink frequency range or the second uplink frequency range; or, when the first measurement power is greater than the plurality of first
  • the threshold is preset, the load of the carrier in the target uplink frequency range corresponding to each first preset threshold is obtained, and the carrier with the smallest load is determined as the target uplink carrier, and the target uplink frequency range is the first uplink frequency range. Or the frequency range in the second uplink frequency range.
  • the handover request response message sent by the target base station to the serving base station includes the target uplink carrier, so that the terminal can perform random access on the target uplink carrier to complete the terminal cut.
  • the terminal can only send an access request on the uplink carrier included in the uplink working frequency range supported by the target cell, thereby improving the success rate of the terminal when switching.
  • FIG. 7 is a device for switching a terminal according to an embodiment of the present disclosure, and is applied to a serving base station, as shown in FIG.
  • the obtaining module 701 is configured to obtain, by the terminal, a first measurement power of the downlink reference signal or the downlink synchronization signal of the target base station, and a second measurement power of the downlink reference signal or the downlink synchronization signal of the terminal that is received by the terminal;
  • the request sending module 702 is configured to: when the difference between the first measured power and the second measured power is greater than a preset threshold, send a terminal handover request message to the target base station, where the terminal handover request message includes the first measurement power;
  • the response receiving module 703 is configured to receive a handover request response sent by the target base station;
  • the handover request response includes a target uplink carrier used by the terminal to send a random access request at the target base station;
  • the command sending module 704 is configured to send a switching instruction to the terminal, where the switching instruction includes the target uplink carrier.
  • the terminal handover request message further includes: a first working frequency band supported by the terminal; the device further includes: a frequency band obtaining module 705, configured to acquire the first working frequency band from the terminal; or Obtaining the first working frequency band from the core network device.
  • the serving base station obtains the target uplink carrier from the target base station, and informs the terminal of the target uplink carrier by using the handover instruction, so that the terminal can perform random access on the target uplink carrier to complete the terminal handover, thereby avoiding that the terminal can only be in the terminal.
  • the access request is sent on the uplink carrier included in the uplink working frequency range supported by the target cell, thereby improving the success rate of the terminal when switching.
  • FIG. 9 is a schematic structural diagram of a device 900 for terminal handover according to an embodiment of the present disclosure.
  • the device 900 may be provided as a target base station.
  • the apparatus 900 can include a processor 901, a memory 902, a multimedia component 903, an input/output (I/O) interface 904, and a communication component 905.
  • the processor 901 is configured to control the overall operation of the apparatus 900 to complete all or part of the steps of the foregoing terminal handover.
  • Memory 902 is used to store various types of data to support operations at the device 900, such as may include instructions for any application or method operating on the device 900.
  • the memory 902 can be implemented by any type of volatile or non-volatile storage terminal device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read only memory. (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM) Read-Only Memory (ROM), magnetic memory, flash memory, disk or optical disk.
  • SRAM static random access memory
  • EEPROM Electrically erasable programmable read only memory
  • EPROM Erasable Programmable Read-Only Memory
  • PROM Programmable Read-Only Memory
  • ROM Read-Only Memory
  • the multimedia component 903 can include a screen and audio components.
  • the screen may be, for example, a touch screen, and the audio component is used to output and/or input an audio signal.
  • Communication component 905 is used for wired or wireless communication between the device 900 and other devices.
  • Wireless communication such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 905 can include: Wi-Fi module, Bluetooth module, NFC module.
  • the device 900 may be configured by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), and digital signal processing terminals (Digital).
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • Digital Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • controller microcontroller, microprocessor or other electronic components Implementation, a method for performing the above terminal handover.
  • An embodiment of the present disclosure further provides a non-transitory computer readable storage medium 1 that is non-transitory
  • the computer readable storage medium 1 includes one or more programs for performing a terminal handover method, the method comprising: receiving a terminal handover request message sent by a serving base station; wherein the terminal handover request The message includes the first measurement power of the terminal receiving the downlink reference signal or the downlink synchronization signal of the target base station, and sending a handover request response message to the serving base station, where the handover request response message includes the terminal corresponding to the random access request sent by the target base station.
  • Target uplink carrier is not limited to the terminal handover request message sent by a serving base station.
  • the method before the sending the handover request response message to the serving base station, the method further includes: determining, according to the terminal handover request message, a target uplink carrier allocated to the terminal.
  • determining the target uplink carrier allocated to the terminal according to the terminal handover request message includes: acquiring a first working frequency band supported by the terminal, and determining, according to the first working frequency band, a target uplink carrier allocated by the terminal.
  • the obtaining the first working frequency band supported by the terminal includes:
  • the method before determining, according to the terminal handover request message, the target uplink carrier that is allocated by the terminal, the method further includes: determining a second working frequency band supported by the target base station; determining, according to the first working frequency band and the second working frequency band, a frequency band pairing combination supported by the terminal and the target base station; the frequency band pairing combination is a third working frequency band composed of a first uplink frequency range and a first downlink frequency range and a supplementary uplink frequency band composed of a second uplink frequency range. Composition.
  • determining, according to the terminal handover request message, the target uplink carrier that is allocated to the terminal is: acquiring a first preset threshold according to the frequency band pairing combination; according to the first measurement power and the first preset threshold The value is the target uplink carrier determined by the terminal to send an uplink random access request.
  • the first preset threshold includes at least one threshold, and the number of the threshold is the first The total number of an uplink frequency range and the second uplink frequency range is decremented by one.
  • determining, by the first measurement power and the first preset threshold, the target uplink carrier for sending the uplink random access request by the terminal when the first measurement power is smaller than the first preset And determining, in the threshold, the carrier in the target uplink frequency range corresponding to the first preset threshold is the target uplink carrier, where the target uplink frequency range is the first uplink frequency range or the second uplink frequency range; or, when the When the measured power is greater than the first preset threshold, determining that the carrier in the target uplink frequency range corresponding to the first preset threshold is the target uplink carrier, and the target uplink frequency range is the first uplink frequency range or the second Upstream frequency range.
  • the target uplink carrier for sending the uplink random access request by the terminal, when the first measurement power is smaller than the multiple
  • the threshold is preset
  • the load of the carrier in the target uplink frequency range corresponding to each first preset threshold is obtained, and the carrier with the smallest load is determined as the target uplink carrier, and the target uplink frequency range is the first uplink frequency range.
  • a frequency range in the second uplink frequency range or, when the first measurement power is greater than the multiple first preset thresholds, acquiring a load of a carrier in a target uplink frequency range corresponding to each first preset threshold, and Determining that the carrier with the smallest load is the target uplink carrier, and the target uplink frequency range is the frequency range in the first uplink frequency range or the second uplink frequency range.
  • FIG. 10 is a schematic structural diagram of a device 1000 for terminal handover according to an embodiment of the present disclosure.
  • the device 1000 may be provided as a serving base station.
  • the apparatus 1000 can include a processor 1001, a memory 1002, a multimedia component 1003, an input/output (I/O) interface 1004, and a communication component 1005.
  • the processor 1001 is configured to control the overall operation of the device 1000 to complete all or part of the steps of the terminal switching.
  • Memory 1002 is used to store various types of data to support operations at the device 1000, such as may include instructions for any application or method operating on the device 1000.
  • the memory 1002 can be implemented by any type of volatile or non-volatile storage terminal device or a combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read only memory. (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM) Read-Only Memory (ROM), magnetic memory, flash memory, disk or optical disk.
  • SRAM Static Random Access Memory
  • EEPROM Electrically erasable programmable read only memory.
  • EPROM Erasable Programmable Read-Only Memory
  • PROM Programmable Read-Only Memory
  • ROM Read-Only Memory
  • the multimedia component 1003 can include a screen and an audio component.
  • the screen may be, for example, a touch screen, and the audio component is used to output and/or input an audio signal.
  • Communication component 1005 is used for wired or wireless communication between the device 1000 and other devices.
  • Wireless communication such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 605 can include: Wi-Fi module, Bluetooth module, NFC module.
  • the device 1000 may be configured by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), and digital signal processing terminals (Digital).
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • Digital Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • controller microcontroller, microprocessor or other electronic components Implementation, a method for performing the above terminal handover.
  • the embodiment of the present disclosure further provides a non-transitory computer readable storage medium 2 including one or more programs for performing a terminal handover.
  • the method includes: acquiring, by the terminal, a first measurement power of a downlink reference signal or a downlink synchronization signal of the target base station, and receiving, by the terminal, a second measurement power of the downlink reference signal or the downlink synchronization signal of the serving base station; The difference between the power and the second measured power When the value is greater than the preset threshold, sending a terminal handover request message to the target base station, where the terminal handover request message includes the first measurement power, and receiving a handover request response sent by the target base station; the handover request response includes the terminal for the target base station Sending a target uplink carrier of the random access request; sending a handover instruction to the terminal, the handover instruction including the target uplink carrier.
  • the terminal handover request message further includes: a first working frequency band supported by the terminal; the first working frequency band supported by the terminal is obtained by acquiring the first working frequency band from the terminal; or Obtain the first working frequency band.

Abstract

本公开提供了一种终端切换的方法、装置以及基站和存储介质，该方法包括：接收服务基站发送的终端切换请求消息；其中，所述终端切换请求消息包括所述终端接收所述目标基站的下行参考信号或下行同步信号的第一测量功率；向所述服务基站发送切换请求响应消息，所述切换请求响应消息包含所述终端在目标基站发送随机接入请求对应的目标上行载波。

Description

终端切换的方法、装置以及基站和存储介质 技术领域
本公开涉及信息管理领域，尤其涉及一种终端切换的方法、装置以及基站和存储介质。
背景技术
在3G和4G网络中，系统的上行覆盖相比于下行覆盖的覆盖能力较差，从而影响上行数据的传输，而在5G网络中，两者间的差距更加明显，因此，需要考虑将高低频段搭配使用，即在高频段自身上行覆盖受限时，使用低频段的上行频率进行上行数据传输，其中，高频段可以包括28GHz、3.5GHz等频率，用于提供容量，低频段可以包括900MHz等频率，用于提供覆盖。
在现有的终端切换的场景下，终端只能在目标小区支持的上行工作频率范围所包含的上行载波上发送接入请求，而上行工作频率范围所包含的上行载波往往频率较高，覆盖范围有限，因此，终端在该上行工作频率范围所包含的上行载波上发送随机接入请求的失败率较高，导致切换失败概率较大。
发明内容
为了解决上述问题，本公开提供一种终端切换的方法、装置以及基站和存储介质。
为了实现上述目的，根据本公开实施例的第一方面，提供一种终端切换的方法，应用于目标基站，包括：接收服务基站发送的终端切换请求消息；其中，所述终端切换请求消息包括所述终端接收所述目标基站的下行参考信号或下行同步信号的第一测量功率；向所述服务基站发送切换请求响应消息，所述切换请求响应消息包含所述终端在目标基站发送随机接入请求对应的 目标上行载波。
根据本公开实施例的第二方面，提供一种终端切换的方法，应用于服务基站，包括：获取终端接收目标基站的下行参考信号或下行同步信号的第一测量功率，以及所述终端接收服务基站的下行参考信号或下行同步信号的第二测量功率；在所述第一测量功率与所述第二测量功率的差值大于预设阈值时，向所述目标基站发送终端切换请求消息，所述终端切换请求消息包括所述第一测量功率；接收所述目标基站发送的切换请求响应；所述切换请求响应包括用于终端在目标基站发送随机接入请求的目标上行载波；向所述终端发送切换指令，所述切换指令包含所述目标上行载波。
根据本公开实施例的第三方面，提供一种终端切换的装置，应用于目标基站，包括：接收模块，用于接收服务基站发送的终端切换请求消息；其中，所述终端切换请求消息包括所述终端接收所述目标基站的下行参考信号或下行同步信号的第一测量功率；发送模块，用于向所述服务基站发送切换请求响应消息，所述切换请求响应消息包含所述终端在目标基站发送随机接入请求对应的目标上行载波。
根据本公开实施例的第四方面，提供一种终端切换的装置，应用于服务基站，包括：获取模块，用于获取终端接收目标基站的下行参考信号或下行同步信号的第一测量功率，以及所述终端接收服务基站的下行参考信号或下行同步信号的第二测量功率；请求发送模块，用于在所述第一测量功率与所述第二测量功率的差值大于预设阈值时，向所述目标基站发送终端切换请求消息，所述终端切换请求消息包括所述第一测量功率；响应接收模块，用于接收所述目标基站发送的切换请求响应；所述切换请求响应包括用于终端在目标基站发送随机接入请求的目标上行载波；指令发送模块，用于向所述终端发送切换指令，所述切换指令包含所述目标上行载波。
根据本公开实施例的第五方面，提供一种计算机可读存储介质，所述计 算机可读存储介质中包括一个或多个程序，所述一个或多个程序用于执行上述第一方面所述的方法。
根据本公开实施例的第六方面，提供一种目标基站，包括：上述第五方面所述的非临时性计算机可读存储介质；以及一个或者多个处理器，用于执行所述计算机可读存储介质中的程序。
根据本公开实施例的第七方面，提供一种计算机可读存储介质，所述计算机可读存储介质中包括一个或多个程序，所述一个或多个程序用于执行上述第二方面所述的方法。
根据本公开实施例的第八方面，提供一种服务基站，包括：上述第七方面所述的计算机可读存储介质；以及一个或者多个处理器，用于执行所述计算机可读存储介质中的程序。
采用上述技术方案，接收服务基站发送的终端切换请求消息；其中，所述终端切换请求消息包括所述终端接收所述目标基站的下行参考信号或下行同步信号的第一测量功率，以及所述终端支持的第一工作频段；根据所述终端切换请求消息确定为所述终端分配的目标上行载波；向所述服务基站发送用于发起随机接入的资源信息，所述资源信息包括所述目标上行载波的载波信息，以便所述服务基站向所述终端发送包括所述资源信息以及所述目标基站的基站标识的切换指令，所述终端根据所述基站标识和资源信息向所述目标基站发送随机接入请求消息。这样，目标基站向服务基站发送的切换请求响应消息中包括目标上行载波，使得终端能够在目标上行载波上进行随机接入，以完成终端切换，避免了终端只能在目标小区支持的上行工作频率范围所包含的上行载波上发送接入请求，从而提高终端在切换时的成功率。
附图说明
图1为本发明实施例提供的一种终端切换的方法的流程示意图；
图2为本发明实施例提供的另一种终端切换的方法的流程示意图；
图3为本发明实施例提供的第三种终端切换的方法的流程示意图；
图4为本发明实施例提供的一种终端切换的装置的结构示意图；
图5为本发明实施例提供的另一种终端切换的装置的结构示意图；
图6为本发明实施例提供的第三种终端切换的装置的结构示意图；
图7为本发明实施例提供的第四种终端切换的装置的结构示意图；
图8为本发明实施例提供的第五种终端切换的装置的结构示意图；
图9为本发明实施例提供的一种终端切换的装置的硬件结构示意图；
图10为本发明实施例提供的另一种终端切换的装置的硬件结构示意图。
具体实施方式
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本公开，并不用于限制本公开。
本公开以下实施例提供的技术方案可以应用于5G移动通信系统。该系统中可以包括网络设备和终端，该网络设备可以是基站(Base Station，简称为BS)，其中，基站是与终端进行通信的设备，其可以提供特定物理区域的通信覆盖。例如，基站具体可以是LTE中的演进型基站(evolutional node B，简称为ENB或eNodeB)，或者，也可以是无线通信网络中的提供接入服务的其他接入网设备。
终端可以分布于整个移动通信系统中，每个终端可以是静态的或移动的。例如，终端可以是移动台(mobile station)，用户单元(subscriber unit)，站台(station)，还可以是蜂窝电话(cellular phone)，个人数字助理(personal digital assistant，简称为PDA)，手持设备(handheld)，膝上型电脑(laptop computer)等无线通信设备。
在本公开的应用场景中，可以将高频段的载波和低频段的载波配对使用， 即将两个独立的频段形成天然的频率配对，不需要采用类似载波聚合的方式激活辅载波或去激活辅载波，避免载波聚合的配置时延及复杂度开销。
具体来说，可以将3300-3800MHz频段(TDD制式)与880-915MHz(FDD制式)的上行频段进行配对使用。在此种情况下，对于系统来说，下行数据在3300-3800MHz频率范围承载，上行数据在3300-3800MHz和/或880-915MHz频率范围承载。具体地，当终端在小区中心时，可以使用3300-3800MHz频率范围承载上行数据，当终端在小区边缘时，可以用880-915MHz频率范围承载上行数据。因此，对于单个终端来说，同一时刻只在一个上行频率工作，对于网络设备来说，同一时刻可以在多个上行频率工作。既保证了网络对终端的覆盖，又不增加终端的功耗。
下面结合具体的实施例对本公开进行详细说明。
图1为本公开提供的一种终端切换的方法，如图1所示，该方法应用于目标基站，包括：
S101、接收服务基站发送的终端切换请求消息。
其中，该终端切换请求消息包括该终端接收该目标基站的下行参考信号或下行同步信号的第一测量功率。
S102、向该服务基站发送切换请求响应消息，该切换请求响应消息包含该终端在目标基站发送随机接入请求对应的目标上行载波。
采用上述方案，目标基站向服务基站发送的切换请求响应消息中包括目标上行载波，使得终端能够在目标上行载波上进行随机接入，以完成终端切换，避免了终端只能在目标小区支持的上行工作频率范围所包含的上行载波上发送接入请求，从而提高终端在切换时的成功率。
图2为本公开提供的一种终端切换的方法，如图2所示，该方法应用于服务基站，包括：
S201、获取终端接收目标基站的下行参考信号或下行同步信号的第一测量功率，以及该终端接收服务基站的下行参考信号或下行同步信号的第二测量功率。
S202、在该第一测量功率与该第二测量功率的差值大于预设阈值时，向该目标基站发送终端切换请求消息，该终端切换请求消息包括该第一测量功率。
S203、接收该目标基站发送的切换请求响应；该切换请求响应包括用于终端在目标基站发送随机接入请求的目标上行载波。
S204、向该终端发送切换指令，该切换指令包含该目标上行载波。
终端在接收到切换指令后，在该目标上行载波上向目标基站发送随机介入请求，以完成终端切换。
采用上述方案，服务基站从目标基站获取目标上行载波，并将该目标上行载波通过切换指令告知终端，使得终端能够在目标上行载波上进行随机接入，以完成终端切换，避免了终端只能在目标小区支持的上行工作频率范围所包含的上行载波上发送接入请求，从而提高终端在切换时的成功率。
图3为本公开提供的一种终端切换的方法，如图3所示，该方法包括：
S301、终端向服务基站上报该终端接收该目标基站的下行参考信号或下行同步信号的第一测量功率。
S302、终端向服务基站上报该终端接收该服务基站的下行参考信号或下行同步信号的第二测量功率。
S303、服务基站在确定该第一测量功率和第二测量功率的差值大于或者等于预设阈值时，获取终端支持的第一工作频段。
在本步骤中，服务基站可以从该终端获取该第一工作频段；或者，服务基站从核心网设备获取该第一工作频段。
S304、服务基站向该目标基站发送终端切换请求消息。
其中，该终端切换请求消息包括该第一测量功率以及该第一工作频段。
S305、目标基站在接收到终端切换请求消息后，确定自身支持的第二工作频段。
S306、目标基站根据该第一工作频段和该第二工作频段确定该终端和该目标基站均支持的频段配对组合。
其中，该频段配对组合是由第一上行频率范围和第一下行频率范围组成的第三工作频段与由第二上行频率范围组成的补充上行频段联合构成。例如，该频段配对组合可以包括：第一上行频率范围3300-3800MHz，第一工作频率范围3300-3800MHz，第二上行频率范围880-915MHz。对应该频段配对组合的上行数据可以在两个上行频率范围内的载波发送，如3300-3800MHz与880-915MHz，下行数据可以在一个第一下行频率范围发送，如3300-3800MHz。
S307、目标基站根据该频段配对组合获取第一预设门限值。
其中，该第一预设门限值包括至少一个门限值，该至少一个门限值的数量为该第三上行频率范围的数量减1。
在本步骤中，第一预设门限值可以在网络规划时根据目标基站支持的上行频率范围进行配置，具体地，该第一预设门限值可以根据每两个上行频率范围中覆盖区域较小的上行频率范围所在的覆盖边界位置对应的下行参考信号或下行同步信号的测量功率确定，也可以根据每两个上行频率范围中覆盖区域较大的上行频率范围所在的覆盖边界位置对应的下行参考信号或下行同步信号的测量功率确定，示例地，以频段配对组合包含的上行频率范围的数量为两个进行说明，如该频段配对组合包括的上行频率范围为：第一上行频率范围3300-3800MHz和第二上行频率范围880-915MHz；该第一预设门限值可以根据第一上行频率范围和第二上行频率范围中覆盖区域较小的上行频率范围(即第一上行频率范围3300-3800MHz)所在的覆盖边界位置 对应的下行参考信号或下行同步信号的测量功率得到，也可以根据第一上行频率范围和第二上行频率范围中覆盖区域较大的上行频率范围(即第二上行频率范围880-915MHz)所在的覆盖边界位置对应的下行参考信号或下行同步信号的测量功率得到。
例如，可以通过公式：RSRPthreshold＝RSRPmeasure+delta得到该第一预设门限值，其中，RSRPthreshold为第一预设门限值，RSRPmeasure为该终端在第一上行频率范围和第二上行频率范围中覆盖范围相对较小的上行频率范围的覆盖边界处接收下行参考信号或下行同步信号的测量功率，delta为预设冗余量，考虑到服务基站和终端进行切换指令交互时有延时，因此，为了在未到高频段的频率范围极限覆盖边界时就提前切换到覆盖更佳的低频段的频率范围，以保证终端切换成功率，该delta可以设置为正值。
上述示例是以频段配对组合包括两个上行频率范围为例进行的说明，本公开对此不作限定，也可以支持两个以上上行频率范围，如3个及以上，例如，以该第一预设门限值以两个上行频率范围中覆盖区域较小的上行频率范围所在的覆盖边界位置对应的下行参考信号或下行同步信号的测量功率确定的为例进行说明，频段配对组合包括1个第一上行频率范围以及3个第二上行频率范围，可以分别记为：R1、R2、R3和R4，其中，按照上行频率范围的覆盖范围的大小依次排序为：R1<R2<R3<R4，则通过上述计算第一预设门限值的方式可以计算R1对应的第一预设门限值T1，R2对应的第一预设门限值T2，R3对应的第一预设门限值T3，这样，最终得到的第一预设门限值为(T1、T2、T3)。
S308、目标基站根据该第一测量功率和该第一预设门限值确定为该终端分配的目标上行载波。
在本步骤中，可以通过以下四种方式中的任一种确定为该终端分配的目标上行载波：
方式一：当该第一测量功率小于该第一预设门限时，确定该第一预设门限对应的目标上行频率范围内的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围。
方式二：当该第一测量功率大于该第一预设门限时，确定该第一预设门限对应的目标上行频率范围内的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围。
需要说明的是，上述方式一和方式二取决于第一预设门限的设置，例如，若第一预设门限是根据第一上行频率范围和第二上行频率范围中覆盖区域较小的上行频率范围所在的覆盖边界位置对应的下行参考信号或下行同步信号的测量功率得到的，则可以采用方式二，若第一预设门限是根据第一上行频率范围和第二上行频率范围中覆盖区域较大的上行频率范围所在的覆盖边界位置对应的下行参考信号或下行同步信号的测量功率得到的，则可以采用方式一，当然，这里只是举例说明，不作限定。
示例地，以方式二为例进行说明，若频段配对组合包括的第一上行频率范围和第二上行频率范围为R1、R2、R3和R4，且该第一预设门限值为(T1、T2、T3)为例进行说明，若确定第一测量功率大于T1和T2以及T3，并确定T1为T1、T2、和T3中的最大值，则确定R1内的载波为该目标上行载波，若确定第一测量功率大于T2和T3，且T2大于T3，则确定R2内的载波为该目标上行载波；若确定第一测量功率大于T3，则确定R3内的载波为该目标上行载波；若确定第一测量功率小于T3，则确定R4内的载波为该目标上行载波。
方式三，当该第一测量功率小于多个该第一预设门限时，目标基站获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定该负载最小的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围中的频率范围。
方式四，当第一测量功率大于多个第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定该负载最小的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围中的频率范围。
同样地，上述方式三和方式四取决于第一预设门限的设置，例如，若第一预设门限是根据第一上行频率范围和第二上行频率范围中覆盖区域较小的上行频率范围所在的覆盖边界位置对应的下行参考信号或下行同步信号的测量功率得到的，则可以采用方式四，若第一预设门限是根据第一上行频率范围和第二上行频率范围中覆盖区域较大的上行频率范围所在的覆盖边界位置对应的下行参考信号或下行同步信号的测量功率得到的，则可以采用方式三，当然，这里只是举例说明，不作限定。
示例地，以方式四为例进行说明，若频段配对组合包括的第一上行频率范围和第二上行频率范围为R1、R2、R3和R4，且该第一预设门限值为(T1、T2、T3)为例进行说明，若确定第一测量功率大于T1和T2以及T3，则表示终端在R1、R2和R3内的载波都可以发起随机接入请求，此时，可以分别获取R1、R2和R3内的载波的负载，并确定负载最小的载波为该目标上行载波。
S309、目标基站向服务基站发送切换请求响应消息。
其中，该切换请求响应消息中可以包括目标上行载波信息以及以下信息中的至少一种：发送随机接入请求信息采用的调制编码方式、发送随机接入请求信息的功率、为终端分配的C-RNTI(Cell Radio Network Temporary Identifier，小区无线网络临时标识)信息；该目标上行载波信息可以包括：发送随机接入请求消息的目标上行载波的中心频率和/或该目标上行载波的带宽。
S310、服务基站在接收到该切换请求响应消息后，向该终端发送包括该 资源信息和目标基站的基站标识的切换指令。
S311、终端在接收到该切换指令后，根据该资源信息向基站标识标示的目标基站发送随机接入请求。
采用上述方案，目标基站向服务基站发送的切换请求响应消息中包括目标上行载波，使得终端能够在目标上行载波上进行随机接入，以完成终端切换，避免了终端只能在目标小区支持的上行工作频率范围所包含的上行载波上发送接入请求，从而提高终端在切换时的成功率。
图4为本公开实施例提供的一种终端切换的装置，如图4所示，应用于目标基站，该装置包括：
接收模块401，用于接收服务基站发送的终端切换请求消息；其中，该终端切换请求消息包括该终端接收该目标基站的下行参考信号或下行同步信号的第一测量功率；
发送模块402，用于向该服务基站发送切换请求响应消息，该切换请求响应消息包含该终端在目标基站发送随机接入请求对应的目标上行载波。
可选地，如图5所示，还包括：
载波确定模块403，用于根据该终端切换请求消息确定为该终端分配的目标上行载波。
可选地，该载波确定模块403，用于获取该终端支持的第一工作频段，并根据该第一工作频段确定为该终端分配的目标上行载波。
可选地，该载波确定模块403用于通过以下方式获取该第一工作频段：
从该服务基站发送的切换请求信息中获取该第一工作频段；或者，
从核心网设备获取该第一工作频段；或者，
向该终端获取该第一工作频段；或者，
向该服务基站获取该第一工作频段。
可选地，如图6所示，该装置还包括：
第一确定模块404，用于确定该目标基站支持的第二工作频段，并根据该第一工作频段和该第二工作频段确定该终端和该目标基站均支持的频段配对组合；该频段配对组合是由第一上行频率范围和第一下行频率范围组成的第三工作频段与由第二上行频率范围组成的补充上行频段联合构成。
可选地，该载波确定模块403，用于根据该频段配对组合获取第一预设门限值，并根据该第一测量功率和该第一预设门限值为该终端确定用于发送上行随机接入请求的目标上行载波。
可选地，该第一预设门限包含至少一个门限值，该门限值的数量为该第一上行频率范围和该第二上行频率范围的总数量减1。
可选地，该载波确定模块403，用于当该第一测量功率小于该第一预设门限时，确定该第一预设门限对应的目标上行频率范围内的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围；或者，用于当该第一测量功率大于该第一预设门限时，确定该第一预设门限对应的目标上行频率范围内的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围。
可选地，该载波确定模块403，用于当该第一测量功率小于多个该第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定该负载最小的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围中的频率范围；或者，用于当第一测量功率大于多个第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定该负载最小的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围中的频率范围。
采用上述方案，目标基站向服务基站发送的切换请求响应消息中包括目标上行载波，使得终端能够在目标上行载波上进行随机接入，以完成终端切 换，避免了终端只能在目标小区支持的上行工作频率范围所包含的上行载波上发送接入请求，从而提高终端在切换时的成功率。
图7为本公开实施例提供的一种终端切换的装置，如图7所示，应用于服务基站，包括：
获取模块701，用于获取终端接收目标基站的下行参考信号或下行同步信号的第一测量功率，以及该终端接收服务基站的下行参考信号或下行同步信号的第二测量功率；
请求发送模块702，用于在该第一测量功率与该第二测量功率的差值大于预设阈值时，向该目标基站发送终端切换请求消息，该终端切换请求消息包括该第一测量功率；
响应接收模块703，用于接收该目标基站发送的切换请求响应；该切换请求响应包括用于终端在目标基站发送随机接入请求的目标上行载波；
指令发送模块704，用于向该终端发送切换指令，该切换指令包含该目标上行载波。
可选地，如图8所示，该终端切换请求消息还包括：该终端支持的第一工作频段；该装置还包括：频段获取模块705，用于从该终端获取该第一工作频段；或者，从核心网设备获取该第一工作频段。
采用上述方案，服务基站从目标基站获取目标上行载波，并将该目标上行载波通过切换指令告知终端，使得终端能够在目标上行载波上进行随机接入，以完成终端切换，避免了终端只能在目标小区支持的上行工作频率范围所包含的上行载波上发送接入请求，从而提高终端在切换时的成功率。
图9是本公开实施例提供的一种终端切换的装置900的结构示意图，该装置900可以被提供为一目标基站。如图9所示，该装置900可以包括：处理器901，存储器902，多媒体组件903，输入/输出(I/O)接口904，以及通信组件905。
其中，处理器901用于控制该装置900的整体操作，以完成上述终端切换的方法的全部或部分步骤。存储器902用于存储各种类型的数据以支持在该装置900的操作，这些数据例如可以包括用于在该装置900上操作的任何应用程序或方法的指令。
该存储器902可以由任何类型的易失性或非易失性存储终端设备或者它们的组合实现，例如静态随机存取存储器(Static Random Access Memory，简称SRAM)，电可擦除可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，简称EEPROM)，可擦除可编程只读存储器(Erasable Programmable Read-Only Memory，简称EPROM)，可编程只读存储器(Programmable Read-Only Memory，简称PROM)，只读存储器(Read-Only Memory，简称ROM)，磁存储器，快闪存储器，磁盘或光盘。
多媒体组件903可以包括屏幕和音频组件。其中屏幕例如可以是触摸屏，音频组件用于输出和/或输入音频信号。
通信组件905用于该装置900与其他设备之间进行有线或无线通信。无线通信，例如Wi-Fi，蓝牙，近场通信(Near Field Communication，简称NFC)，2G、3G或4G，或它们中的一种或几种的组合，因此相应的该通信组件905可以包括：Wi-Fi模块，蓝牙模块，NFC模块。
在一示例性实施例中，装置900可以被一个或多个应用专用集成电路(Application Specific Integrated Circuit，简称ASIC)、数字信号处理器(Digital Signal Processor，简称DSP)、数字信号处理终端设备(Digital Signal Processing Device，简称DSPD)、可编程逻辑器件(Programmable Logic Device，简称PLD)、现场可编程门阵列(Field Programmable Gate Array，简称FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述终端切换的方法。
本公开实施例还提供一种非临时性计算机可读存储介质1，该非临时性 计算机可读存储介质1中包括一个或多个程序，该一个或多个程序用于执行一种终端切换的方法，该方法包括：接收服务基站发送的终端切换请求消息；其中，该终端切换请求消息包括该终端接收该目标基站的下行参考信号或下行同步信号的第一测量功率；向该服务基站发送切换请求响应消息，该切换请求响应消息包含该终端在目标基站发送随机接入请求对应的目标上行载波。
可选地，在该向该服务基站发送切换请求响应消息之前，该方法还包括：根据该终端切换请求消息确定为该终端分配的目标上行载波。
可选地，该根据该终端切换请求消息确定为该终端分配的目标上行载波包括：获取该终端支持的第一工作频段，根据该第一工作频段确定为该终端分配的目标上行载波。
可选地，该获取该终端支持的第一工作频段包括：
从该服务基站发送的切换请求信息中获取该第一工作频段；或者，
从核心网设备获取该第一工作频段；或者，
向该终端获取该第一工作频段；或者，
向该服务基站获取该第一工作频段。
可选地，在该根据该终端切换请求消息确定为该终端分配的目标上行载波前，还包括：确定该目标基站支持的第二工作频段；根据该第一工作频段和该第二工作频段确定该终端和该目标基站均支持的频段配对组合；该频段配对组合是由第一上行频率范围和第一下行频率范围组成的第三工作频段与由第二上行频率范围组成的补充上行频段联合构成。
可选地，该根据该终端切换请求消息确定为该终端分配的目标上行载波包括：根据该频段配对组合获取第一预设门限值；根据该第一测量功率和该第一预设门限值为该终端确定用于发送上行随机接入请求的目标上行载波。
可选地，该第一预设门限包含至少一个门限值，该门限值的数量为该第 一上行频率范围和该第二上行频率范围的总数量减1。
可选地，该根据该第一测量功率和该第一预设门限值为该终端确定用于发送上行随机接入请求的目标上行载波包括：当该第一测量功率小于该第一预设门限时，确定该第一预设门限对应的目标上行频率范围内的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围；或者，当该第一测量功率大于该第一预设门限时，确定该第一预设门限对应的目标上行频率范围内的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围。
可选地，该根据该第一测量功率和该第一预设门限值为该终端确定用于发送上行随机接入请求的目标上行载波包括：当该第一测量功率小于多个该第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定该负载最小的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围中的频率范围；或者，当第一测量功率大于多个第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定该负载最小的载波为该目标上行载波，该目标上行频率范围为该第一上行频率范围或该第二上行频率范围中的频率范围。
图10是本公开实施例提供的一种终端切换的装置1000的结构示意图，该装置1000可以被提供为一服务基站。如图10所示，该装置1000可以包括：处理器1001，存储器1002，多媒体组件1003，输入/输出(I/O)接口1004，以及通信组件1005。
其中，处理器1001用于控制该装置1000的整体操作，以完成上述终端切换的方法的全部或部分步骤。存储器1002用于存储各种类型的数据以支持在该装置1000的操作，这些数据例如可以包括用于在该装置1000上操作的任何应用程序或方法的指令。
该存储器1002可以由任何类型的易失性或非易失性存储终端设备或者它们的组合实现，例如静态随机存取存储器(Static Random Access Memory，简称SRAM)，电可擦除可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，简称EEPROM)，可擦除可编程只读存储器(Erasable Programmable Read-Only Memory，简称EPROM)，可编程只读存储器(Programmable Read-Only Memory，简称PROM)，只读存储器(Read-Only Memory，简称ROM)，磁存储器，快闪存储器，磁盘或光盘。
多媒体组件1003可以包括屏幕和音频组件。其中屏幕例如可以是触摸屏，音频组件用于输出和/或输入音频信号。
通信组件1005用于该装置1000与其他设备之间进行有线或无线通信。无线通信，例如Wi-Fi，蓝牙，近场通信(Near Field Communication，简称NFC)，2G、3G或4G，或它们中的一种或几种的组合，因此相应的该通信组件605可以包括：Wi-Fi模块，蓝牙模块，NFC模块。
在一示例性实施例中，装置1000可以被一个或多个应用专用集成电路(Application Specific Integrated Circuit，简称ASIC)、数字信号处理器(Digital Signal Processor，简称DSP)、数字信号处理终端设备(Digital Signal Processing Device，简称DSPD)、可编程逻辑器件(Programmable Logic Device，简称PLD)、现场可编程门阵列(Field Programmable Gate Array，简称FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述终端切换的方法。
本公开实施例还提供一种非临时性计算机可读存储介质2，该非临时性计算机可读存储介质2中包括一个或多个程序，该一个或多个程序用于执行一种终端切换的方法，该方法包括：获取终端接收目标基站的下行参考信号或下行同步信号的第一测量功率，以及该终端接收服务基站的下行参考信号或下行同步信号的第二测量功率；在该第一测量功率与该第二测量功率的差 值大于预设阈值时，向该目标基站发送终端切换请求消息，该终端切换请求消息包括该第一测量功率；接收该目标基站发送的切换请求响应；该切换请求响应包括用于终端在目标基站发送随机接入请求的目标上行载波；向该终端发送切换指令，该切换指令包含该目标上行载波。
可选地，该终端切换请求消息还包括：该终端支持的第一工作频段；该终端支持的第一工作频段通过以下方式获取：从该终端获取该第一工作频段；或者，从核心网设备获取该第一工作频段。
以上结合附图详细描述了本公开的优选实施方式，但是，本公开并不限于上述实施方式中的具体细节，在本公开的技术构思范围内，可以对本公开的技术方案进行多种简单变型，这些简单变型均属于本公开的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本公开对各种可能的组合方式不再另行说明。
此外，本公开的各种不同的实施方式之间也可以进行任意组合，只要其不违背本公开的思想，其同样应当视为本公开所公开的内容。

Claims (26)

  1. 一种终端切换的方法，其特征在于，应用于目标基站，包括：
    接收服务基站发送的终端切换请求消息；其中，所述终端切换请求消息包括所述终端接收所述目标基站的下行参考信号或下行同步信号的第一测量功率；
    向所述服务基站发送切换请求响应消息，所述切换请求响应消息包含所述终端在目标基站发送随机接入请求对应的目标上行载波。
  2. 根据权利要求1所述的方法，其特征在于，在所述向所述服务基站发送切换请求响应消息之前，所述方法还包括：
    根据所述终端切换请求消息确定为所述终端分配的目标上行载波。
  3. 根据权利要求1所述的方法，其特征在于，所述根据所述终端切换请求消息确定为所述终端分配的目标上行载波包括：
    获取所述终端支持的第一工作频段，
    根据所述第一工作频段确定为所述终端分配的目标上行载波。
  4. 根据权利要求3所述的方法，其特征在于，所述获取所述终端支持的第一工作频段包括：
    从所述服务基站发送的切换请求信息中获取所述第一工作频段；或者，
    从核心网设备获取所述第一工作频段；或者，
    向所述终端获取所述第一工作频段；或者，
    向所述服务基站获取所述第一工作频段。
  5. 根据权利要求3或4所述的方法，其特征在于，在所述根据所述终 端切换请求消息确定为所述终端分配的目标上行载波前，还包括：
    确定所述目标基站支持的第二工作频段；
    根据所述第一工作频段和所述第二工作频段确定所述终端和所述目标基站均支持的频段配对组合；所述频段配对组合是由第一上行频率范围和第一下行频率范围组成的第三工作频段与由第二上行频率范围组成的补充上行频段联合构成。
  6. 根据权利要求5所述的方法，其特征在于，所述根据所述终端切换请求消息确定为所述终端分配的目标上行载波包括：
    根据所述频段配对组合获取第一预设门限值；
    根据所述第一测量功率和所述第一预设门限值为所述终端确定用于发送上行随机接入请求的目标上行载波。
  7. 根据权利要求6所述的方法，其特征在于，所述第一预设门限包含至少一个门限值，所述门限值的数量为所述第一上行频率范围和所述第二上行频率范围的总数量减1。
  8. 根据权利要求6或7所述的方法，其特征在于，所述根据所述第一测量功率和所述第一预设门限值为所述终端确定用于发送上行随机接入请求的目标上行载波包括：
    当所述第一测量功率小于所述第一预设门限时，确定所述第一预设门限对应的目标上行频率范围内的载波为所述目标上行载波，所述目标上行频率范围为所述第一上行频率范围或所述第二上行频率范围；或者，
    当所述第一测量功率大于所述第一预设门限时，确定所述第一预设门限对应的目标上行频率范围内的载波为所述目标上行载波，所述目标上行频率 范围为所述第一上行频率范围或所述第二上行频率范围。
  9. 根据权利要求6或7所述的方法，其特征在于，所述根据所述第一测量功率和所述第一预设门限值为所述终端确定用于发送上行随机接入请求的目标上行载波包括：
    当所述第一测量功率小于多个所述第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定所述负载最小的载波为所述目标上行载波，所述目标上行频率范围为所述第一上行频率范围或所述第二上行频率范围中的频率范围；或者，
    当第一测量功率大于多个第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定所述负载最小的载波为所述目标上行载波，所述目标上行频率范围为所述第一上行频率范围或所述第二上行频率范围中的频率范围。
  10. 一种终端切换的方法，其特征在于，应用于服务基站，包括：
    获取终端接收目标基站的下行参考信号或下行同步信号的第一测量功率，以及所述终端接收服务基站的下行参考信号或下行同步信号的第二测量功率；
    在所述第一测量功率与所述第二测量功率的差值大于预设阈值时，向所述目标基站发送终端切换请求消息，所述终端切换请求消息包括所述第一测量功率；
    接收所述目标基站发送的切换请求响应；所述切换请求响应包括用于终端在目标基站发送随机接入请求的目标上行载波；
    向所述终端发送切换指令，所述切换指令包含所述目标上行载波。
  11. 根据权利要求10所述的方法，其特征在于，所述终端切换请求消息还包括：所述终端支持的第一工作频段；
    所述终端支持的第一工作频段通过以下方式获取：
    从所述终端获取所述第一工作频段；或者，
    从核心网设备获取所述第一工作频段。
  12. 一种终端切换的装置，其特征在于，应用于目标基站，包括：
    接收模块，用于接收服务基站发送的终端切换请求消息；其中，所述终端切换请求消息包括所述终端接收所述目标基站的下行参考信号或下行同步信号的第一测量功率；
    发送模块，用于向所述服务基站发送切换请求响应消息，所述切换请求响应消息包含所述终端在目标基站发送随机接入请求对应的目标上行载波。
  13. 根据权利要求12所述的装置，其特征在于，还包括：
    载波确定模块，用于根据所述终端切换请求消息确定为所述终端分配的目标上行载波。
  14. 根据权利要求12所述的装置，其特征在于，所述载波确定模块，用于获取所述终端支持的第一工作频段，并根据所述第一工作频段确定为所述终端分配的目标上行载波。
  15. 根据权利要求14所述的装置，其特征在于，所述载波确定模块用于通过以下方式获取所述第一工作频段：
    从所述服务基站发送的切换请求信息中获取所述第一工作频段；或者，
    从核心网设备获取所述第一工作频段；或者，
    向所述终端获取所述第一工作频段；或者，
    向所述服务基站获取所述第一工作频段。
  16. 根据权利要求14或15所述的装置，其特征在于，所述装置还包括：
    第一确定模块，用于确定所述目标基站支持的第二工作频段，并根据所述第一工作频段和所述第二工作频段确定所述终端和所述目标基站均支持的频段配对组合；所述频段配对组合是由第一上行频率范围和第一下行频率范围组成的第三工作频段与由第二上行频率范围组成的补充上行频段联合构成。
  17. 根据权利要求16所述的装置，其特征在于，所述载波确定模块，用于根据所述频段配对组合获取第一预设门限值，并根据所述第一测量功率和所述第一预设门限值为所述终端确定用于发送上行随机接入请求的目标上行载波。
  18. 根据权利要求17所述的装置，其特征在于，所述第一预设门限包含至少一个门限值，所述门限值的数量为所述第一上行频率范围和所述第二上行频率范围的总数量减1。
  19. 根据权利要求17或18所述的装置，其特征在于，所述载波确定模块，用于当所述第一测量功率小于所述第一预设门限时，确定所述第一预设门限对应的目标上行频率范围内的载波为所述目标上行载波，所述目标上行频率范围为所述第一上行频率范围或所述第二上行频率范围；或者，用于当所述第一测量功率大于所述第一预设门限时，确定所述第一预设门限对应的目标上行频率范围内的载波为所述目标上行载波，所述目标上行频率范围为 所述第一上行频率范围或所述第二上行频率范围。
  20. 根据权利要求17或18所述的装置，其特征在于，所述载波确定模块，用于当所述第一测量功率小于多个所述第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定所述负载最小的载波为所述目标上行载波，所述目标上行频率范围为所述第一上行频率范围或所述第二上行频率范围中的频率范围；或者，用于当第一测量功率大于多个第一预设门限时，获取每个第一预设门限对应的目标上行频率范围内的载波的负载，并确定所述负载最小的载波为所述目标上行载波，所述目标上行频率范围为所述第一上行频率范围或所述第二上行频率范围中的频率范围。
  21. 一种终端切换的装置，其特征在于，应用于服务基站，包括：
    获取模块，用于获取终端接收目标基站的下行参考信号或下行同步信号的第一测量功率，以及所述终端接收服务基站的下行参考信号或下行同步信号的第二测量功率；
    请求发送模块，用于在所述第一测量功率与所述第二测量功率的差值大于预设阈值时，向所述目标基站发送终端切换请求消息，所述终端切换请求消息包括所述第一测量功率；
    响应接收模块，用于接收所述目标基站发送的切换请求响应；所述切换请求响应包括用于终端在目标基站发送随机接入请求的目标上行载波；
    指令发送模块，用于向所述终端发送切换指令，所述切换指令包含所述目标上行载波。
  22. 根据权利要求21所述的装置，其特征在于，所述终端切换请求消息还包括：所述终端支持的第一工作频段；所述装置还包括：
    频段获取模块，用于从所述终端获取所述第一工作频段；或者，从核心网设备获取所述第一工作频段。
  23. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中包括一个或多个程序，所述一个或多个程序用于执行权利要求1至9中任一项所述的方法。
  24. 一种目标基站，其特征在于，包括：
    权利要求23中所述的非临时性计算机可读存储介质；以及
    一个或者多个处理器，用于执行所述非临时性计算机可读存储介质中的程序。
  25. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中包括一个或多个程序，所述一个或多个程序用于执行权利要求10或11所述的方法。
  26. 一种服务基站，其特征在于，包括：
    权利要求25中所述的非临时性计算机可读存储介质；以及
    一个或者多个处理器，用于执行所述非临时性计算机可读存储介质中的程序。
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