WO2023066360A1 - 切换方法、装置、设备及可读存储介质 - Google Patents

切换方法、装置、设备及可读存储介质 Download PDF

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Publication number
WO2023066360A1
WO2023066360A1 PCT/CN2022/126601 CN2022126601W WO2023066360A1 WO 2023066360 A1 WO2023066360 A1 WO 2023066360A1 CN 2022126601 W CN2022126601 W CN 2022126601W WO 2023066360 A1 WO2023066360 A1 WO 2023066360A1
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WIPO (PCT)
Prior art keywords
time
pscell
pcell
terminal
indication information
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PCT/CN2022/126601
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English (en)
French (fr)
Inventor
陈晶晶
谢芳
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Application filed by 中国移动通信有限公司研究院, 中国移动通信集团有限公司 filed Critical 中国移动通信有限公司研究院
Priority to CA3236005A priority Critical patent/CA3236005A1/en
Priority to AU2022370023A priority patent/AU2022370023A1/en
Publication of WO2023066360A1 publication Critical patent/WO2023066360A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/04Reselecting a cell layer in multi-layered cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/12Reselecting a serving backbone network switching or routing node
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular to a handover method, device, equipment, and readable storage medium.
  • MR-DC Multi-RAT Dual Connectivity
  • NR-DC New Radio (NR) independent networking (Stand Alone, SA) to multi-radio access technology dual connectivity
  • MR-DC multi-radio access technology dual connectivity
  • NR multiple-radio access technology dual connectivity
  • NE-DC fifth generation mobile communication technology
  • 4G fourth generation
  • NE-DC fifth generation mobile communication technology
  • EN-DC 4G wireless access network and 5G NR dual connectivity
  • NR-DC 5G NR and 5G NR dual connectivity
  • conversion or conversion between MR-DC involving primary cell (Primary Cell, PCell) change including NE-DC to NE-DC, EN-DC to EN-DC, NR -DC to NR-DC
  • PCell Primary Cell
  • PSCell Primary Secondary Cell
  • PCell handover and PSCell addition are performed separately.
  • a radio resource control (Radio Resource Control, RRC) message triggers the terminal to perform PCell handover and PSCell addition.
  • RRC Radio Resource Control
  • the terminal behavior is undefined.
  • the embodiment of the present application is to provide a handover method, device, equipment and readable storage medium, so as to solve the problem of how the terminal performs handover.
  • a switching method comprising:
  • the terminal performs switching, and the switching time of the terminal includes at least one of the following:
  • the switching time of the terminal includes one or more of the following: the sum of the PCell switching time and the PSCell adding time; the sum of the PCell cell search time and the PSCell cell search time ; The sum of PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time;
  • the first condition is: the terminal is configured with an SMTC with an unknown target PSCell.
  • the method also includes:
  • the terminal obtains the first information
  • the first information includes one or more of the following:
  • the first indication information instructs the terminal to add the PSCell after sending the PRACH preamble to the PCell;
  • the second indication information instructs the terminal to add PSCell after receiving the RAR sent by the PCell;
  • the third indication information instructs the terminal to add PSCell after receiving MSG4 sent by PCell;
  • the fourth indication information instructs the terminal to add a PSCell after sending the MSGA to the PCell;
  • the method also includes:
  • the terminal obtains second information, and the second information includes one or more of the following:
  • sixth indication information indicates that the switching time of the terminal includes the sum of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • the seventh indication information indicates that the switching time of the terminal includes the maximum value of the PCell switching time and the PSCell adding time of the terminal;
  • Eighth indication information indicates that the switching time of the terminal includes the PCell switching time of the terminal and/or the PSCell adding time of the terminal;
  • Ninth indication information indicates that the switching time of the terminal includes the sum of the PCell cell search time of the terminal and the PSCell cell search time of the terminal;
  • the tenth indication information indicates that the switching time of the terminal includes the time of PCell cell search of the terminal, the time of PCell synchronization of the terminal, the time of PSCell cell search of the terminal, and the The sum of the PSCell synchronization time of the terminal.
  • the length of the switching time of the terminal is a first time length
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the Preamble to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the PCell and sends the RAR is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives MSG4 sent by the PCell is equal to The sum of the time lengths for the terminal to add PSCells;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the MSGA to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the MSGB sent by the PCell The sum of the time lengths for adding PSCells with the terminal.
  • the time length for the terminal to add a PSCell includes:
  • the method also includes:
  • the first threshold is related to channel quality
  • the channel quality is lower than and/or equal to the first value of the first threshold, and the channel quality is higher than and/or equal to the second value of the first threshold, determine that the receiving PCell sends After MSG2, add PSCell;
  • the method also includes:
  • the terminal obtains a second threshold, and the second threshold is related to channel quality
  • the switching time of the terminal includes: the sum of PCell switching time and PSCell adding time;
  • the switching time of the terminal includes the maximum value of the PCell switching time and the PSCell adding time
  • the switching time of the terminal includes PCell switching time and/or PSCell adding time
  • the switching time of the terminal includes the sum of the PCell cell search time and the PScell cell search time
  • the switching time of the terminal includes PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time sum of time.
  • the method also includes:
  • the terminal sends third information to the network side device
  • the third information includes one or more of the following:
  • Whether the terminal supports switching time includes the sum of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes the maximum value of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes PCell switching time and/or PSCell adding time;
  • Whether the terminal supports switching time includes the sum of the PCell cell search time and the PSCell cell search time;
  • Whether the terminal supports switching time includes the time of PCell cell search, the time of PCell synchronization, the sum of the time of PSCell cell search and the time of PScell synchronization;
  • the eleventh indication information indicates that the PSCell is added after the second operation
  • Twelfth indication information where the twelfth indication information indicates that the terminal supports parallel processing of the third operation
  • the second operation includes one of the following:
  • the method also includes:
  • the fourth information includes one or more of the following:
  • the fourteenth indication information indicates whether the terminal performs switching carrying PSCell addition through parallel processing
  • the fifteenth indication information indicates whether the terminal carries out the switching of adding PSCell through serial processing
  • the sixteenth instruction information indicates that the fifth operation is to be processed in parallel
  • Seventeenth instruction information where the seventeenth instruction information indicates that the sixth operation performs serial processing.
  • the third operation or the fourth operation or the fifth operation or the sixth operation includes one or more of the following:
  • a switching method including:
  • the network side device sends the first information
  • the first information includes one or more of the following:
  • the first indication information instructs the terminal to add the PSCell after sending the PRACH preamble to the PCell;
  • the second indication information indicates that the terminal performs PSCell addition after receiving the RAR sent by the PCell;
  • the third indication information instructs the terminal to add PSCell after receiving MSG4 sent by PCell;
  • the fourth indication information instructs the terminal to add a PSCell after sending the MSGA to the PCell;
  • the method also includes:
  • the network side device sends second information, where the second information includes one or more of the following:
  • sixth indication information indicates that the switching time of the terminal includes the sum of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • the seventh indication information indicates that the switching time of the terminal includes the maximum value of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • Eighth indication information indicates that the switching time of the terminal includes the PCell switching time of the terminal and/or the PSCell adding time of the terminal;
  • Ninth indication information indicates that the switching time of the terminal includes the sum of the PCell cell search time of the terminal and the PSCell cell search time of the terminal;
  • the tenth indication information indicates that the switching time of the terminal includes the time of PCell cell search of the terminal, the time of PCell synchronization of the terminal, the time of PSCell cell search of the terminal, and the The sum of the PSCell synchronization time of the terminal.
  • the length of the switching time of the terminal is a first time length
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the Preamble to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the PCell and sends the RAR is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives MSG4 sent by the PCell is equal to The sum of the time lengths for the terminal to add PSCells;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the MSGA to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the MSGB sent by the PCell The sum of the time lengths for adding PSCells with the terminal.
  • the time length for the terminal to add a PSCell includes:
  • the method also includes:
  • the network side device sends a second threshold, and the second threshold is related to channel quality
  • the switching time of the terminal includes: the sum of PCell switching time and PSCell adding time;
  • the switching time of the terminal includes the maximum value of the PCell switching time and the PSCell adding time
  • the switching time of the terminal includes PCell switching time and/or PSCell adding time
  • the switching time of the terminal includes the sum of the PCell cell search time and the PScell cell search time
  • the switching time of the terminal includes PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time sum of time.
  • the method also includes:
  • the network side device receives third information
  • the third information includes one or more of the following:
  • Whether the terminal supports switching time includes the sum of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes the maximum value of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes PCell switching time and/or PSCell adding time;
  • Whether the terminal supports switching time includes the sum of the time of PCell cell search and the time of PSCell cell search;
  • Whether the terminal supports switching time includes the time of PCell cell search, the time of PCell synchronization, the sum of the time of PSCell cell search and the time of PSCell synchronization;
  • the eleventh indication information indicates that the PSCell is added after the second operation
  • Twelfth indication information where the twelfth indication information indicates that the terminal supports parallel processing of the third operation
  • the second operation includes one of the following:
  • the method also includes:
  • the network side device sends fourth information
  • the fourth information includes one or more of the following:
  • the fourteenth indication information indicates whether the terminal performs PSCell addition through parallel processing
  • the fifteenth indication information indicates whether the terminal adds PSCell through serial processing
  • the sixteenth instruction information indicates that the fifth operation is to be processed in parallel
  • Seventeenth instruction information where the seventeenth instruction information indicates that the sixth operation performs serial processing.
  • a switching device which is applied to a terminal, including:
  • the switching module is used for switching, and the switching time of the terminal includes at least one of the following:
  • PCell cell search time The sum of PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time.
  • a switching device which is applied to network side equipment, including:
  • a second sending module configured to send the first information
  • the first information includes one or more of the following:
  • the first indication information instructs the terminal to add the PSCell after sending the PRACH preamble to the PCell;
  • the second indication information instructs the terminal to add PSCell after receiving the RAR sent by the PCell;
  • the third indication information instructs the terminal to add PSCell after receiving MSG4 sent by PCell;
  • the fourth indication information instructs the terminal to add a PSCell after sending the MSGA to the PCell;
  • a communication device including: a processor, a memory, and a program stored on the memory and operable on the processor, and when the program is executed by the processor, the first aspect is implemented. Or the steps of the method described in the second aspect.
  • a readable storage medium is provided, and a program is stored on the readable storage medium, and when the program is executed by a processor, the steps including the method described in the first aspect or the second aspect are realized.
  • the terminal can determine the time to add the PSCell or determine at which stage to add the PSCell to assist network scheduling, clarify the behavior of the terminal during the handover process with the added PSCell, and improve system performance.
  • FIG. 1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application
  • FIG. 2 is one of the flowcharts of a handover method provided in an embodiment of the present application
  • FIG. 3 is the second flowchart of a handover method provided by an embodiment of the present application.
  • Fig. 4 is one of the schematic diagrams of a switching device provided by an embodiment of the present application.
  • Fig. 5 is the second schematic diagram of a switching device provided by the embodiment of the present application.
  • FIG. 6 is a schematic diagram of a terminal provided in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a network-side device provided by an embodiment of the present application.
  • Fig. 8 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design scheme described as “exemplary” or “for example” in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Rather, the use of words such as “exemplary” or “such as” is intended to present related concepts in a concrete manner.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technologies can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies.
  • NR New Radio
  • 6G 6th Generation
  • the wireless communication system includes a terminal 11 , a terminal 12 and a network side device 13 .
  • the terminal can also be called terminal equipment or user equipment (User Equipment, UE), and the terminal can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant ( Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR) / virtual reality (virtual reality) reality, VR) equipment, robot, wearable device (Wearable Device), vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication function.
  • Specific types of the terminal 11 and the terminal 12 are not limited.
  • the network side device 13 may be a base station or a core network, where a base station may be called a Node B, an evolved Node B, an access point, a Base Transceiver Station (Base TransceiverStation, BTS), a radio base station, a radio transceiver, a basic service set (BasicServiceSet, BSS), Extended Service Set (ExtendedServiceSet, ESS), B Node, Evolved Node B (gNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, Transmitting Receiving Point (Transmitting Receiving Point, TRP), wireless access network node, or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to the specified technical vocabulary. It should be noted that, in this embodiment of the application, only The base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • Handover in this article includes handover with PSCell, and can also be described as handover with PSCell addition, or as handover with PSCell (HO with PSCell), or handover with PSCell (HO with PSCell addition) .
  • the PCell herein may also be described as a primary cell, or a primary node.
  • the PSCell herein may also be described as a primary and secondary cell, or a secondary node.
  • the application scenarios of this application include at least one of the following:
  • the handover time in this paper can also be described as handover delay (HO delay), or it can also be described as interruption time, including the interruption time caused by handover.
  • the handover time includes the time from when the terminal receives a radio resource control (Radio Resource Control, RRC) message carrying handover to when the terminal sends a new PRACH.
  • RRC Radio Resource Control
  • sending the new PRACH includes sending the PRACH to the new PCell and/or sending the PRACH to the new PSCell.
  • the terminal handover time can be understood as the terminal is ready to send a new PRACH within this period of time.
  • an embodiment of the present application provides a handover method
  • the execution subject of the method may be a terminal
  • specific steps include: Step 201 .
  • Step 201 The terminal performs switching, and the switching time of the terminal includes at least one of the following:
  • the switching time of the terminal includes: "PCell switching time + PSCell adding time".
  • the terminal completes PCell switching and PSCell adding in series, including the following scenarios:
  • PCell switching and PSCell addition are completely serial, that is, after PCell switching is completed (specifically, after sending PRACH to PCell, that is, after receiving MSG4 or MSB), then add PSCell;
  • Scenario 2 The PRACH process of the PCell overlaps with the PScell addition in the time domain, including sending the PRACH Preamble (or described as MSG1) to the PCell, and then starting the PScell addition; or receiving the RAR (MSG2) sent by the PCell, and starting the PScell addition; or After MSGA is sent to PCell, PScell addition starts.
  • PRACH Preamble or described as MSG1
  • RAR MSG2
  • the switching time of the above-mentioned terminal includes "the maximum value of PCell switching time and PSCell adding time". Including the largest delay among the two, it can also be understood that the PRACH is sent to the PCell, and the PRACH is sent to the PSCell, and the time when the PRACH is sent latest among the two is used as a sign that the handover of the PSCell is completed.
  • the switching time of the above-mentioned terminal includes "PCell switching time and/or PSCell adding time".
  • the terminal completes PCell switching and PSCell adding in parallel. These two operations are completely independent, and there is no need to specify the sign of the end of PSCell switching .
  • the switching time of Handover with PSCell can be described as PCell switching time and PSCell adding time, that is, the time of PCell switching and PSCell adding respectively.
  • the overall time of Handover with PSCell may not be reflected.
  • the above terminal handover time includes "PCell cell selection time + PSCell cell selection time", in this case, the terminal completes PCell handover and PSCell addition in a partially serial or partially parallel manner.
  • this solution means that the cell search of the PCell and the cell search of the PSCell are performed serially, and other processes, including time synchronization, frequency domain synchronization, and PRACH transmission, are performed in parallel, that is, they are performed independently.
  • the above terminal switching time includes "PCell cell selection time + PCell synchronization time + PSCell cell selection time + PSCell synchronization time”.
  • this solution refers to the cell search and synchronization of the PCell and the cell search of the PSCell.
  • the synchronization is executed serially, and other processes, including sending the PRACH, are executed in parallel, that is, they are executed independently.
  • the switching time of the terminal in each solution may also include RRC processing time.
  • the switching time of the terminal includes one or more of the following: PCell switching time and PSCell addition time; PCell cell search time and PSCell cell search time The time of PCell cell search, the time of PCell synchronization, the time of PSCell cell search and the time of PSCell synchronization;
  • the first condition is: the terminal is configured with an SMTC whose target is an unknown PSCell. That is, the target PSCell is unknown, and the SMTC of the target PSCell is configured.
  • configuring the SMTC of the target PSCell can be understood as configuring the SMTC for the target PSCel, that is, the terminal is configured with the SMTC of the target PSCel.
  • the terminal is configured with an SMTC with an unknown target PSCell including:
  • the SMTC of the target unknown PSCell is configured in targetcellSMTC-SCG-r16, but not configured in reconfigurationWithSync; or, the SMTC of the target unknown PSCell is configured in RRCConnectionReconfiguration.
  • the method also includes:
  • the terminal acquires first information, where the first information includes one or more of the following:
  • the first indication information instructs the terminal to perform PSCell addition after sending a Physical Random Access Channel (Physical Random Access Channel, PRACH) (such as the master node PRACH) preamble to the PCell ;
  • PRACH Physical Random Access Channel
  • the second indication information instructs the terminal to add a PSCell after receiving a Random Access Response (Random Access Response, RAR) sent by the primary cell PCell;
  • RAR Random Access Response
  • the third indication information instructs the terminal to perform PSCell addition after receiving the message 4 (MSG4) sent by the PCell;
  • the fourth indication information instructs the terminal to add a PSCell after sending a message A (MSGA) to the PCell;
  • the fifth indication information instructs the terminal to add the PSCell after receiving the message B (MSGB) sent by the PCell.
  • the method also includes:
  • second information includes one or more of the following:
  • sixth indication information indicates that the switching time of the terminal includes the sum of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • the seventh indication information indicating that the switching time of the terminal includes the maximum value of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • Ninth indication information indicates that the switching time of the terminal includes the sum of the search time of the PCell cell of the terminal and the search time of the PSCell cell of the terminal;
  • Tenth indication information indicates that the switching time of the terminal includes the time of PCell cell search of the terminal, the time of PCell synchronization of the terminal, and the time of PSCell cell search of the terminal The sum of time synchronized with the PSCell of the terminal.
  • the length of the switching time of the terminal is a first time length
  • the first time length (T1) from the terminal receiving a radio resource control (Radio Resource Control, RRC) message carrying handover to the terminal The sum of the time length for the terminal to send the Preamble to the PCell and the time length for the terminal to add the PSCell;
  • RRC Radio Resource Control
  • the first time length (T2) is: from when the terminal receives the RRC message carrying handover to when the terminal receives the PCell and sends the random access The sum of the time length of the response (Random Access Response, RAR) and the time length of the terminal adding the PSCell;
  • the first time length (T3) is: from when the terminal receives the RRC message carrying handover to when the terminal receives MSG4 sent by the PCell The sum of the time length and the time length for the terminal to add the PSCell;
  • the first time length (T4) is: the time from when the terminal receives the RRC message carrying handover to when the terminal sends MSGA to the PCell The sum of the length and the time length for the terminal to add the PSCell;
  • the first time length (T5) is: from the terminal receiving the RRC message carrying handover to the terminal receiving the MSGB sent by the PCell The sum of the time length and the time length for the terminal to add the PSCell.
  • the time length for the terminal to add a PSCell includes:
  • the method also includes:
  • the terminal acquires a first threshold, where the first threshold is related to channel quality
  • the terminal determines to add a PSCell after sending a message 1 (MSG1) to the PCell;
  • the terminal determines to add a PSCell after receiving the message 2 (MSG2) sent by the PCell;
  • the terminal determines to add a PSCell after receiving MSG4 sent by the PCell;
  • the terminal determines that After receiving MSG2 sent by PCell, add PSCell;
  • the terminal When the channel quality is lower than and/or equal to the second value of the first threshold, and the channel quality is higher than and/or equal to the third value of the first threshold, the terminal receives After MSG4 sent by PCell, add PSCell;
  • the terminal determines to add a PSCell after sending the MSGA to the PCell;
  • the terminal determines to perform PSCell addition after receiving the MSGB sent by the PCell.
  • the terminal determines that the receiving PCell After sending MSGB, proceed to PSCell addition.
  • the first threshold includes: Reference Signal Received Power (Reference Signal Receiving Power, RSRP), Reference Signal Received Quality (Reference Signal Receiving Quality, RSRQ), Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, SINR ) at least one of the
  • the channel quality includes: at least one of RSRP, RSRQ, and SINR, and the channel quality is obtained by terminal measurement.
  • the method also includes:
  • the terminal acquires a second threshold, where the second threshold is related to channel quality
  • the switching time of the terminal includes: the sum of PCell switching time and PSCell adding time;
  • the switching time of the terminal includes the maximum value of the PCell switching time and the PSCell adding time
  • the switching time of the terminal includes PCell switching time and/or PSCell adding time
  • the switching time of the terminal includes the sum of the PCell cell search time and the PScell cell search time
  • the switching time of the terminal includes PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time sum of time.
  • the second threshold includes: at least one of RSRP, RSRQ, and SINR.
  • the channel quality includes: at least one of RSRP, RSRQ, and SINR, and the channel quality is obtained by terminal measurement.
  • the method also includes:
  • the terminal sends the third information to the network side;
  • the third information includes one or more of the following:
  • performing handover with PSCell addition in parallel processing means that the terminal performs PCell handover and PSCell addition at the same time.
  • the duration for completing the handover with the added PSCell is: the maximum value of the PCell handover delay and the PSCell add delay (max(PCell handover delay, PSCell add delay)).
  • the serial processing method of handover with PSCell addition means that the terminal performs PCell handover and PSCell addition in series, and then adds PSCell after PCell handover or most of the process of PCell handover is completed.
  • the time to complete the handover with PSCell added is longer than the time in parallel mode, specifically PCell handover delay + PSCell added delay + T (here T is related to which link the terminal performs PSCell addition in PCell PRACH).
  • Whether the terminal supports switching time includes the sum of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes the maximum value of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes PCell switching time and/or PSCell adding time
  • Whether the terminal supports switching time includes the sum of the time of PCell cell search and the time of PSCell cell search;
  • Whether the terminal supports switching time includes the time of PCell cell search, the time of PCell synchronization, the sum of the time of PSCell cell search and the time of PScell synchronization;
  • the eleventh indication information indicates that the PSCell is added after the second operation
  • the network side may send the first information to the terminal according to the third information, that is, the network side may instruct the terminal when to add a PSCell according to the capabilities reported by the terminal or the actual needs of the terminal.
  • the second operation includes one of the following:
  • the method also includes:
  • the terminal determines a first manner, where the first manner represents a manner in which the terminal performs handover with addition of the PSCell.
  • the step of the terminal determining the first manner includes:
  • the terminal receives fourth information from the network side;
  • the terminal determines the first method according to the fourth information (that is, obtains how to carry out switching with PSCell addition based on the network instruction);
  • the terminal determines the first manner according to the agreement (that is, the terminal acquires how to perform the handover with the addition of the PSCell through the agreement).
  • the fourth information includes one or more of the following:
  • the link in which the terminal performs parallel processing is further indicated through the sixteenth indication information.
  • the link in which the terminal performs serial processing is further indicated through the seventeenth indication information.
  • the protocol agreement includes predefined rules, and the predefined rules include:
  • the serial processing method is adopted; otherwise (that is, the above conditions are not satisfied), the parallel processing method is adopted.
  • SMTC synchronization signal block-based measurement time configuration
  • the third operation or the fourth operation or the fifth operation or the sixth operation includes one or more of the following:
  • parallel processing or serial processing can be performed synchronously in the time domain.
  • parallel processing or serial processing can be performed synchronously in the frequency domain.
  • the cell search includes at least one of AGC and cell detection.
  • Cell detection can also be described as PSS/SSS detection, that is, Primary Synchronization Signal/Secondary Synchronization Signal detection.
  • the terminal receives the first information sent by the network, where the first information indicates when the terminal adds the PSCell.
  • the first information may include: first indication information, the first indication information indicates that the terminal performs PSCell addition after sending the PRACH preamble to the PCell (that is, after sending the message 1 (MSG1) to the PCell) .
  • the time length for the terminal to complete the handover with PSCell addition (HO with PSCell) is T1.
  • T1 the time from receiving the RRC message carrying handover (HO with PSCell) to the terminal sending the Preamble to the PCell + the time length for the terminal to add PSCell.
  • the length of time for the terminal to add a PSCell can be understood as the time from when the terminal sends a Preamble to the PCell to when the terminal sends a Preamble to the PSCell, or from when the terminal sends a Preamble to the PCell to when the terminal sends a message A (MSGA) to the PSCell.
  • MSGA message A
  • the first information may include second indication information, and the second indication information instructs the terminal to initiate PSCell addition after receiving the RAR (Receive Message 2 (MSG2)) sent by the PCell.
  • RAR Receiveive Message 2
  • the time length for the terminal to complete the handover (HO with PSCell) added with PScell is T2.
  • T2 the time from receiving the RRC message carrying handover (HO with PSCell) to the terminal receiving the RAR sent by the PCell + the time length for the terminal to add PSCell.
  • the time length for the terminal to add the PSCell can be understood as: the time from the terminal receiving the RAR sent by the PCell to the terminal sending the Pramble to the PSCell, or the time from the terminal receiving the RAR sent by the PCell to the terminal sending the MSGA to the PSCell.
  • the time of T2 is longer, and the increased time of T2 is the time for the terminal to receive the RAR sent by the PCell.
  • PScell addition is carried out at this stage.
  • the robustness can be improved to a certain extent, but there is still the risk of PCell handover failure, which may bring Come to a certain waste of resources.
  • the first information may include third indication information, and the third indication information instructs the terminal to add the PSCell after receiving the message 4 (MSG4) sent by the PCell.
  • MSG4 message 4
  • the time length for the terminal to complete the handover with PSCell addition (HO with PSCell) is T3.
  • T3 the time from receiving the RRC message carrying handover (HO with PSCell) to the terminal receiving the MSG4 sent by the PCell + the time length for the terminal to add PSCell.
  • the time length for the terminal to add the PSCell can be understood as: the time from the terminal receiving the MSG4 sent by the PCell to the terminal sending the Pramble to the PSCell or the time from the terminal receiving the MSG4 sent by the PCell to the terminal sending the MSGA to the PSCell.
  • the time of T3 is longer, wherein, compared with T1, the increased time of T3 is the time for the terminal to receive the RAR sent by the PCell, the time for the terminal to send MSG3, and the time for the terminal to receive MSG4.
  • the terminal indicated by the third indication information initiates the addition of the PSCell, it can be determined that the switching of the MN PCell has been successfully completed, which can improve the robustness of the system.
  • the first information may include fourth indication information, and the fourth indication information instructs the terminal to add the PSCell after sending the MSGA to the PCell.
  • the time length for the terminal to complete the handover (HO with PSCell) added with PScell is T4.
  • T4 the time from receiving the RRC message carrying handover (HO with PSCell) to the terminal sending MSGA to the PCell + the time length for the terminal to add PSCell.
  • the time length for the terminal to add the PSCell can be understood as: the time from the terminal sending the MSGA to the PCell to the terminal sending the Pramble to the PSCell or the time from the terminal sending the MSGA to the PCell to the terminal sending the MSGA to the PSCell.
  • the first information may include fifth indication information, and the fifth indication information indicates that the terminal performs PSCell addition after receiving the MSGB sent by the PCell.
  • the time length for the terminal to complete the handover (HO with PSCell) added with PScell is T5.
  • T5 the time from receiving the RRC message carrying handover (HO with PSCell) to the terminal receiving the MSGB sent by the PCell + the time length for the terminal to add PSCell.
  • the time length for the terminal to add the PSCell can be understood as: the time from the terminal receiving the MSGB sent by the PCell to the terminal sending the Pramble to the PSCell, or the time from the terminal receiving the MSGB sent by the PCell to the terminal sending the MSGA to the PSCell.
  • the time of T5 is longer, and compared with T4, the increased time of T5 is the time for the terminal to receive the MSGB sent by the PCell.
  • PScell addition is carried out at this stage.
  • the robustness can be improved to a certain extent, but there is still the risk of PCell handover failure, which may bring Come to a certain waste of resources.
  • PRACH distinguishes four-step RACH and two-step RACH.
  • the random access process includes MSG1, MSG2, MSG3, and MSG4.
  • the terminal After the terminal receives the RRC message carrying the handover (HO with PSCell) added by the PSCell, it needs to determine whether to add the PSCell before or after the PRACH of the PCell handover is completed.
  • the PSCell addition is carried out before the PRACH is completed, it is necessary to determine which link to carry out in MSG1, MSG2, MSG3, and MSG4. Because the earlier the PSCell addition is carried out, the delay for completing the handover carrying the PSCell addition is shorter, and the scheduling limit is also shorter, so that the dual connection mode can be quickly entered. However, the PSCell addition is carried out before the PRACH of PCell handover is completed, because the random access of PCell handover still has the possibility of failure, if the random access of PCell handover fails, then the PSCell addition started in advance will also cause a certain waste of resources.
  • the same problem also exists in the two-step RACH, that is, it needs to determine whether to add PSCell before or after the PRACH of PCell handover is completed. If the PSCell is added before the completion of PRACH, it needs to be determined in which link of MSGA and MSGB.
  • the network can instruct the terminal at which link to add PSCell. If the network expects to quickly enter the dual connection mode, the network can instruct the terminal to add PSCell as soon as possible. At this time, it needs to bear a certain risk of handover failure.
  • the network can instruct the terminal to add PSCells at a later stage of the PRACH process of PCell switching.
  • the terminal receives the first threshold issued by the network, the first threshold is related to channel quality, and the channel quality includes but not limited to: RSRP and/or RSRQ and/or SINR.
  • the first threshold can have multiple values.
  • the terminal can determine when to perform PSCell addition.
  • the terminal may add a PSCell after sending MSG1 to the PCell;
  • the terminal may add the PSCell after receiving the MSG2 sent by the PCell;
  • the terminal may perform PSCell addition after receiving MSG4 sent by the PCell.
  • the above three threshold values may also be used in any combination.
  • the terminal may add a PSCell after sending MSG1 to the PCell;
  • the terminal may perform PSCell addition after receiving MSG2 sent by PCell ;
  • the terminal may perform PSCell addition after receiving MSG4 sent by PCell .
  • the terminal may add the PSCell after sending the MSGA to the PCell;
  • the terminal may perform PSCell addition after receiving the MSGB sent by the PCell.
  • the terminal may add a PSCell after sending the MSGA to the PCell; when the channel quality is lower than and/or equal to the fourth value of the first threshold value, but when the channel quality is higher than and/or equal to the fifth value of the first threshold, the terminal may perform PSCell addition after receiving the MSGB sent by the PCell.
  • the terminal can also report one or more of the following capability information to the network:
  • the so-called handover with PSCell addition in parallel means that the terminal performs PCell handover and PSCell addition at the same time.
  • the time length for completing the handover carrying the PSCell addition is max (PCell handover delay, PSCell addition delay).
  • the so-called switching with PSCell addition in serial means that the terminal performs PCell switching and PSCell addition serially, and performs PSCell addition after completing PCell switching or after completing most processes of PCell switching.
  • the time to complete the handover with PSCell addition is longer than the parallel mode, specifically PCell handover delay + PSCell addition delay + T (here T is related to which link the terminal performs PSCell addition in PCell PRACH) .
  • the terminal can also report at which link the PSCell is added, including adding a PSCell after MSG1, adding a PSCell after MSG2; adding a PSCell after MSG3, adding a PSCell after MSGA, and adding a PSCell after MSG3. After MSGB, add PSCell.
  • the terminal can also report which parts of the parallel processing are supported, including whether the cell detection can be processed in parallel (that is, whether the PCell cell detection and the PSCell cell detection can be carried out at the same time);
  • time domain/frequency domain synchronization can be processed in parallel (that is, whether the time domain/frequency domain synchronization of the PCell cell and the time domain/frequency domain synchronization of the PSCell cell can be carried out at the same time);
  • serial processing there are also partial serial methods, and the terminal can also report which parts of serial processing are supported, including: whether serial processing is required for cell detection (that is, whether PCell cell detection and PSCell cell detection can be performed serially);
  • time domain/frequency domain synchronization needs serial processing (that is, whether the time domain/frequency domain synchronization of the PCell cell and the time domain/frequency domain synchronization of the PSCell cell can be carried out serially);
  • the terminal may acquire how to perform switching of carrying PScell addition.
  • the way for the terminal to obtain includes: obtaining network indication information (fourth information), or protocol predefined rules.
  • the above fourth information includes indicating whether the terminal performs switching of carrying PSCell addition in a parallel manner, and/or indicates whether the terminal performs switching of carrying PSCell addition in a serial manner.
  • the parallel mode it may further indicate which link the terminal performs parallel processing, including one or more of the following:
  • serial mode it may further indicate at which link the terminal performs serial processing, including one or more of the following:
  • the predefined rules of the protocol include: if the network configures SSB-based RRM Measurement Timing Configuration (SMTC) for the target PSCell (which can be configured through targetcellSMTC-SCG), then use the serial method; if the above conditions If not satisfied, use parallel mode.
  • SMTC Measurement Timing Configuration
  • PCell handover and PSCell addition are performed separately.
  • an RRC message triggers the terminal to perform PCell handover and PSCell addition. Since there is no regulation on how to perform PCell handover and PSCell addition in the process, during the handover process carrying PSCell addition, The behavior of the terminal is uncertain, and the time required to complete the handover carrying the PSCell addition is uncertain, and the time length will affect network scheduling.
  • the terminal can determine the time to add the PSCell or determine at which stage to add the PSCell to assist network scheduling, clarify the behavior of the terminal during the handover process with the added PSCell, and improve system performance.
  • the embodiment of the present application adopts a switching method, and the specific steps include: step 301 .
  • Step 301 the network side device sends the first information
  • the first information includes one or more of the following:
  • the first indication information instructs the terminal to add the PSCell after sending the PRACH preamble to the PCell;
  • the second indication information instructs the terminal to add PSCell after receiving the RAR sent by the PCell;
  • the third indication information instructs the terminal to add PSCell after receiving MSG4 sent by PCell;
  • the fourth indication information instructs the terminal to add a PSCell after sending the MSGA to the PCell;
  • the method also includes:
  • the network side device sends second information, where the second information includes one or more of the following:
  • sixth indication information indicates that the switching time of the terminal includes the sum of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • the seventh indication information indicates that the switching time of the terminal includes the maximum value of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • Eighth indication information indicates that the switching time of the terminal includes the PCell switching time of the terminal and/or the PSCell adding time of the terminal;
  • Ninth indication information indicates that the switching time of the terminal includes the sum of the PCell cell search time of the terminal and the PSCell cell search time of the terminal;
  • the tenth indication information indicates that the switching time of the terminal includes the time of PCell cell search of the terminal, the time of PCell synchronization of the terminal, the time of PSCell cell search of the terminal, and the The sum of the PSCell synchronization time of the terminal.
  • the length of the switching time of the terminal is a first time length
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the Preamble to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the PCell and sends the RAR is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives MSG4 sent by the PCell is equal to The sum of the time lengths for the terminal to add PSCells;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the MSGA to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the MSGB sent by the PCell The sum of the time lengths for adding PSCells with the terminal.
  • the time length for the terminal to add a PSCell includes:
  • the method also includes:
  • the network side device sends a second threshold, where the second threshold is related to channel quality
  • the switching time of the terminal includes: the sum of PCell switching time and PSCell adding time;
  • the switching time of the terminal includes the maximum value of the PCell switching time and the PSCell adding time
  • the switching time of the terminal includes PCell switching time and/or PSCell adding time
  • the switching time of the terminal includes the sum of the PCell cell search time and the PScell cell search time
  • the switching time of the terminal includes PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time sum of time.
  • the method also includes:
  • the network side device receives the third information
  • the third information includes one or more of the following:
  • Whether the terminal supports switching time includes the sum of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes the maximum value of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes PCell switching time and/or PSCell adding time;
  • Whether the terminal supports switching time includes the sum of the PCell cell search time and the PSCell cell search time;
  • Whether the terminal supports switching time includes the time of PCell cell search, the time of PCell synchronization, the sum of the time of PSCell cell search and the time of PScell synchronization;
  • the eleventh indication information indicates that the PSCell is added after the second operation
  • Twelfth indication information where the twelfth indication information indicates that the terminal supports parallel processing of the third operation
  • the second operation includes one of the following:
  • the method also includes:
  • the network side device sends the fourth information
  • the fourth information includes one or more of the following:
  • the fourteenth indication information indicates whether the terminal performs PSCell addition through parallel processing
  • the fifteenth indication information indicates whether the terminal adds PSCell through serial processing
  • the sixteenth instruction information indicates that the fifth operation is to be processed in parallel
  • Seventeenth instruction information where the seventeenth instruction information indicates that the sixth operation performs serial processing.
  • the network side can indicate the time when the terminal adds the PSCell or at which stage to add the PSCell, so as to clarify the behavior of the terminal during the handover process with the added PSCell, and improve system performance.
  • an embodiment of the present application provides a switching device, which is applied to a terminal, and the device 400 includes:
  • the switching module 401 is configured to perform switching, and the switching time of the terminal includes at least one of the following:
  • PCell cell search time The sum of PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time.
  • the switching time of the terminal includes one or more of the following: PCell switching time and PSCell addition time; PCell cell search time and PSCell cell search time The time of PCell cell search, the time of PCell synchronization, the time of PSCell cell search and the time of PSCell synchronization;
  • the first condition is: the terminal is configured with an SMTC whose target is an unknown PSCell.
  • the device also includes:
  • a first acquiring module configured to acquire first information
  • the first information includes one or more of the following:
  • the first indication information instructs the terminal to add the PSCell after sending the PRACH preamble to the PCell;
  • the second indication information instructs the terminal to add PSCell after receiving the RAR sent by the PCell;
  • the third indication information instructs the terminal to add PSCell after receiving MSG4 sent by PCell;
  • the fourth indication information instructs the terminal to add the PSCell after sending the message A MSGA to the PCell;
  • the device also includes:
  • the second obtaining module is used to obtain second information, and the second information includes one or more of the following:
  • sixth indication information indicates that the switching time of the terminal includes the sum of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • the seventh indication information indicates that the switching time of the terminal includes the maximum value of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • Eighth indication information indicates that the switching time of the terminal includes the PCell switching time of the terminal and/or the PSCell adding time of the terminal;
  • Ninth indication information indicates that the switching time of the terminal includes the sum of the PCell cell search time of the terminal and the PSCell cell search time of the terminal;
  • the tenth indication information indicates that the switching time of the terminal includes the time of PCell cell search of the terminal, the time of PCell synchronization of the terminal, the time of PSCell cell search of the terminal, and the The sum of the PSCell synchronization time of the terminal.
  • the length of the switching time of the terminal is a first time length
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the Preamble to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the PCell and sends the RAR is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives MSG4 sent by the PCell is equal to The sum of the time lengths for the terminal to add PSCells;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the MSGA to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the MSGB sent by the PCell The sum of the time lengths for adding PSCells with the terminal.
  • the time length for the terminal to add a PSCell includes:
  • the device also includes:
  • a third obtaining module configured to obtain a first threshold, wherein the first threshold is related to channel quality
  • the channel quality is lower than and/or equal to the first value of the first threshold, and the channel quality is higher than and/or equal to the second value of the first threshold, determine that the receiving PCell sends After MSG2, add PSCell;
  • the device also includes:
  • a fourth obtaining module configured to obtain a second threshold, where the second threshold is related to channel quality
  • the switching time of the terminal includes: the sum of PCell switching time and PSCell adding time;
  • the switching time of the terminal includes the maximum value of the PCell switching time and the PSCell adding time
  • the switching time of the terminal includes PCell switching time and/or PSCell adding time
  • the switching time of the terminal includes the sum of the PCell cell search time and the PScell cell search time
  • the switching time of the terminal includes PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time sum of time.
  • the device also includes:
  • a first sending module configured to send third information to the network side device
  • the third information includes one or more of the following:
  • Whether the terminal supports switching time includes the sum of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes the maximum value of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes PCell switching time and/or PSCell adding time;
  • Whether the terminal supports switching time includes the sum of the PCell cell search time and the PSCell cell search time;
  • Whether the terminal supports switching time includes the time of PCell cell search, the time of PCell synchronization, the sum of the time of PSCell cell search and the time of PScell synchronization;
  • the eleventh indication information indicates that the PSCell is added after the second operation
  • Twelfth indication information where the twelfth indication information indicates that the terminal supports parallel processing of the third operation
  • the second operation includes one of the following:
  • the device also includes:
  • the second determining module is configured to determine a first manner, where the first manner represents a manner in which the terminal performs handover with PSCell addition.
  • the second determination module is further configured to receive fourth information from the network side device; determine the first method according to the fourth information; or determine the first method according to the agreement. one way.
  • the fourth information includes one or more of the following:
  • the fourteenth indication information indicates whether the terminal performs switching carrying PSCell addition through parallel processing
  • sixteenth instruction information indicates that the fifth operation is to be processed in parallel
  • Seventeenth instruction information where the seventeenth instruction information indicates that the sixth operation performs serial processing.
  • the protocol agreement includes predefined rules, and the predefined rules include:
  • the serial processing method is adopted; otherwise, the parallel processing method is adopted.
  • the third operation or the fourth operation or the fifth operation or the sixth operation includes one or more of the following:
  • the device provided by the embodiment of the present application can realize each process realized by the method embodiment shown in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application provides a switching device, which is applied to network side equipment, and the device 500 includes:
  • a second sending module 501 configured to send the first information
  • the first information includes one or more of the following:
  • the first indication information instructs the terminal to add the PSCell after sending the PRACH preamble to the PCell;
  • the second indication information instructs the terminal to add PSCell after receiving the RAR sent by the PCell;
  • the third indication information instructs the terminal to add PSCell after receiving MSG4 sent by PCell;
  • the fourth indication information instructs the terminal to add a PSCell after sending the MSGA to the PCell;
  • the device also includes:
  • a third sending module configured to send second information, where the second information includes one or more of the following:
  • sixth indication information indicates that the switching time of the terminal includes the sum of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • the seventh indication information indicates that the switching time of the terminal includes the maximum value of the PCell switching time of the terminal and the PSCell adding time of the terminal;
  • Eighth indication information indicates that the switching time of the terminal includes the PCell switching time of the terminal and/or the PSCell adding time of the terminal;
  • Ninth indication information indicates that the switching time of the terminal includes the sum of the PCell cell search time of the terminal and the PSCell cell search time of the terminal;
  • the tenth indication information indicates that the switching time of the terminal includes the time of PCell cell search of the terminal, the time of PCell synchronization of the terminal, the time of PSCell cell search of the terminal, and the The sum of the PSCell synchronization time of the terminal.
  • the length of the switching time of the terminal is a first time length
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the Preamble to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the PCell and sends the RAR is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives MSG4 sent by the PCell is equal to The sum of the time lengths for the terminal to add PSCells;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal sends the MSGA to the PCell is equal to the time length The sum of the time lengths for the terminal to add the PSCell;
  • the first time length is: the time length from when the terminal receives the RRC message carrying handover to when the terminal receives the MSGB sent by the PCell The sum of the time lengths for adding PSCells with the terminal.
  • the time length for the terminal to add a PSCell includes:
  • the device also includes:
  • a fourth sending module configured to send a second threshold, where the second threshold is related to channel quality
  • the switching time of the terminal includes: the sum of PCell switching time and PSCell adding time;
  • the switching time of the terminal includes the maximum value of the PCell switching time and the PSCell adding time
  • the switching time of the terminal includes PCell switching time and/or PSCell adding time
  • the switching time of the terminal includes the sum of the PCell cell search time and the PScell cell search time
  • the switching time of the terminal includes PCell cell search time, PCell synchronization time, PSCell cell search time and PSCell synchronization time sum of time.
  • the device also includes:
  • a first receiving module configured to receive third information
  • the third information includes one or more of the following:
  • Whether the terminal supports switching time includes the sum of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes the maximum value of PCell switching time and PSCell adding time
  • Whether the terminal supports switching time includes PCell switching time and/or PSCell adding time;
  • Whether the terminal supports switching time includes the sum of the PCell cell search time and the PSCell cell search time;
  • Whether the terminal supports switching time includes the time of PCell cell search, the time of PCell synchronization, the sum of the time of PSCell cell search and the time of PScell synchronization;
  • the eleventh indication information indicates that the PSCell is added after the second operation
  • Twelfth indication information where the twelfth indication information indicates that the terminal supports parallel processing of the third operation
  • the second operation includes one of the following:
  • the device also includes:
  • a fifth sending module configured to send fourth information
  • the fourth information includes one or more of the following:
  • the fourteenth indication information indicates whether the terminal performs PSCell addition through parallel processing
  • the fifteenth indication information indicates whether the terminal adds PSCell through serial processing
  • the sixteenth instruction information indicates that the fifth operation is to be processed in parallel
  • Seventeenth instruction information where the seventeenth instruction information indicates that the sixth operation performs serial processing.
  • the device provided by the embodiment of the present application can implement the various processes implemented by the method embodiment shown in FIG. 3 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • FIG. 6 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 600 includes, but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, and a display unit. 606 , at least some components in the user input unit 607 , the interface unit 608 , the memory 609 , and the processor 610 .
  • the terminal 600 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 610 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 6 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 6041 and a microphone 6042, and the graphics processor 6041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 607 includes a touch panel 6071 and other input devices 6072 .
  • the touch panel 6071 is also called a touch screen.
  • the touch panel 6071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 6072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 601 receives the downlink data from the network side device, and processes it to the processor 610; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 609 can be used to store software programs or instructions as well as various data.
  • the memory 609 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 609 can include a high-speed random access memory, and can also include a non-transitory memory, wherein the non-transitory memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM) ), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM read-only memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable Programmable Read-Only Memory
  • EPROM Electrically Erasable Programmable Read-Only Memory
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • flash memory for example at least one disk storage device, flash memory device, or other non-transitory solid state storage device.
  • the processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 610 .
  • the terminal provided by the embodiment of the present application can realize each process realized by the method embodiment shown in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a network side device.
  • the network side device 700 includes: an antenna 701 , a radio frequency device 702 , and a baseband device 703 .
  • the antenna 701 is connected to the radio frequency device 702 .
  • the radio frequency device 702 receives information through the antenna 701, and sends the received information to the baseband device 703 for processing.
  • the baseband device 703 processes the information to be sent and sends it to the radio frequency device 702
  • the radio frequency device 702 processes the received information and sends it out through the antenna 701 .
  • the foregoing frequency band processing device may be located in the baseband device 703 , and the method performed by the network side device in the above embodiments may be implemented in the baseband device 703 , and the baseband device 703 includes a processor 704 and a memory 705 .
  • the baseband device 703, for example, may include at least one baseband board, and the baseband board is provided with a plurality of chips, as shown in FIG.
  • the baseband device 703 may also include a network interface 706 for exchanging information with the radio frequency device 702, such as a common public radio interface (CPRI for short).
  • a network interface 706 for exchanging information with the radio frequency device 702, such as a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network side device in this embodiment of the present application further includes: instructions or programs stored in the memory 705 and executable on the processor 704 .
  • processor 704 invokes instructions or programs in the memory 705 to execute the methods executed by the modules shown in FIG. 5 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a communication device 800, including a processor 801, a memory 802, and a program or instruction stored in the memory 802 and operable on the processor 801.
  • the program or instruction When executed by the processor 801, each process of the above-mentioned method embodiment in FIG. 2 or FIG. 3 is realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by the processor, each process of the method embodiment shown in FIG. 2 or FIG. 3 above is implemented. , and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the steps of the methods or algorithms described in connection with the disclosure of this application can be implemented in the form of hardware, or can be implemented in the form of executing software instructions on a processor.
  • the software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable hard disk, CD-ROM or any other storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be carried in an ASIC.
  • the ASIC can be carried in the core network interface device.
  • the processor and the storage medium may also exist in the core network interface device as discrete components.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.
  • embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the embodiment of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
  • the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

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Abstract

本申请实施例提供一种切换方法、装置、设备及可读存储介质,该方法包括:终端进行切换,所述终端的切换时间包括以下至少一项:主小区(Pcell)切换时间与主辅小区(PSCell)添加时间之和;PCell切换时间和PSCell添加时间二者中的最大值;PCell切换时间和/或PSCell添加时间;PCell小区搜索的时间与PSCell小区搜索的时间之和;PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。

Description

切换方法、装置、设备及可读存储介质
相关申请的交叉引用
本申请基于申请号为202111228027.2、申请日为2021年10月21日的中国专利申请提出,并要求该中国专利申请的优先权,该中国专利申请的全部内容在此以全文引入的方式引入本申请。
技术领域
本申请实施例涉及通信技术领域,具体涉及一种切换方法、装置、设备及可读存储介质。
背景技术
在进行新空口(New Radio,NR)独立组网(Stand Alone,SA)到多无线接入技术双连接(Multi-RAT Dual Connectivity,MR-DC)(包括第五代移动通信技术(5th Generation,5G)NR与第四代移动通信技术(fourth generation,4G)无线接入网的双连接(NE-DC),4G无线接入网与5G NR的双连接(EN-DC),5G NR与5G NR的双连接(NR-DC))的转换或者涉及主小区(Primary Cell,PCell)改变的MR-DC之间的转换(包括NE-DC到NE-DC,EN-DC到EN-DC,NR-DC到NR-DC)时,通常先基于切换命令进行PCell的切换,然后再进行基于主辅小区(Primary Secondary Cell,PSCell)添加命令进行PSCell添加。这种方式会存在较长时间才可以完成相关模式的转换。
相关技术中,PCell切换和PSCell添加是分别进行的。但在携带PScell添加的切换的过程中,由一条无线资源控制(Radio Resource Control,RRC)消息触发终端进行PCell切换和PSCell添加,由于没有规定在流程中PCell切换和PSCell添加如何执行,导致在携带PSCell添加的切换的过程中,终端行为不确定。
发明内容
本申请实施例在于提供一种切换方法、装置、设备及可读存储介质,解决 终端如何进行切换的问题。
第一方面,提供一种切换方法,所述方法包括:
终端进行切换,所述终端的切换时间包括以下至少一项:
所述终端的PCell切换时间与所述终端的PSCell添加时间之和;
所述终端的PCell切换时间和所述终端的PSCell添加时间二者中的最大值;
所述终端的PCell切换时间和/或所述终端的PSCell添加时间;
所述终端的PCell小区搜索的时间与所述终端的PSCell小区搜索的时间之和;
所述终端的PCell小区搜索的时间、所述终端的PCell同步的时间、所述终端的PSCell小区搜索的时间和PSCell同步的时间之和。
可选地,在满足第一条件的情况下,所述终端的切换时间包括以下一项或多项:PCell切换时间与PSCell添加时间之和;PCell小区搜索的时间和PSCell小区搜索的时间之和;PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和;
其中,所述第一条件为:所述终端被配置了目标未知PSCell的SMTC。
可选地,所述方法还包括:
所述终端获取第一信息,
其中,所述第一信息包括以下一项或多项:
第一指示信息,所述第一指示信息指示所述终端在向PCell发送PRACH preamble之后进行PSCell添加;
第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的RAR之后进行PSCell添加;
第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的MSG4之后进行PSCell添加;
第四指示信息,所述第四指示信息指示所述终端在向PCell发送MSGA之后进行PSCell添加;
第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的MSGB之后进行PSCell添加。
可选地,所述方法还包括:
所述终端获取第二信息,所述第二信息包括以下一项或多项:
第六指示信息,所述第六指示信息指示所述终端的切换时间包括所述终端的PCell切换时间与所述终端的PSCell添加时间之和;
第七指示信息,所述第七指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和PSCell添加时间二者中的最大值;
第八指示信息,所述第八指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和/或所述终端的PSCell添加时间;
第九指示信息,所述第九指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间与所述终端的PSCell小区搜索的时间之和;
第十指示信息,所述第十指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间、所述终端的PCell同步的时间、所述终端的PSCell小区搜索的时间和所述终端的PSCell同步的时间之和。
可选地,所述终端的切换时间的长度为第一时间长度;
在所述第一信息中包括所述第一指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送Preamble的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第二指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送RAR的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第三指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送的MSG4的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第四指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送MSGA的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第五指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收到PCell发送的MSGB的时间长度与所述终端进行PSCell添加的时间长度之和。
可选地,所述终端进行PSCell添加的时间长度,包括:
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送MSGA的时间长度。
可选地,所述方法还包括:
获取第一门限,其中所述第一门限与信道质量相关;
当所述信道质量高于和/或等于所述第一门限的第一取值时,确定在向PCell发送MSG1之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第二取值时,确定在接收PCell发送的MSG2之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第三取值时,确定在接收PCell发送的MSG4之后,进行PSCell添加;
或者,
当所述信道质量低于和/或等于所述第一门限的第一取值,且所述信道质量高于和/或等于所述第一门限的第二取值时,确定在接收PCell发送的MSG2之后,进行PSCell添加;
或者,
当所述信道质量低于和/或等于所述第一门限的第二取值,且所述信道质量高于和/或等于所述第一门限的第三取值时,在接收PCell发送的MSG4之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第四取值时,确定在向PCell发送MSGA之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第五取值时,确定在接收PCell发送的MSGB之后,进行PSCell添加;
或者,
当所述信道质量低于和/或等于第一门限的第四取值,且所述信道质量高于和/或等于所述第一门限的第五取值时,确定在接收PCell发送的MSGB之后,进行PSCell添加。
可选地,所述方法还包括:
所述终端获取第二门限,所述第二门限与信道质量有关;
当所述信道质量高于和/或等于所述第二门限的第一取值时,所述终端的 切换时间包括:PCell切换时间与PSCell添加时间之和;
当所述信道质量高于和/或等于所述第二门限的第二取值时,所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
当所述信道质量高于和/或等于所述第二门限的第三取值时,所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
当所述信道质量高于和/或等于所述第二门限的第四取值时,所述终端的切换时间包括PCell小区搜索的时间与PScell小区搜索的时间之和;
当所述信道质量高于和/或等于所述第二门限的第五取值时,所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
可选地,所述方法还包括:
所述终端向网络侧设备发送第三信息;
其中,所述第三信息包括以下一项或多项:
所述终端是否支持基于并行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持基于串行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持切换时间包括PCell切换时间与PSCell添加时间之和;
所述终端是否支持切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
所述终端是否支持切换时间包括PCell切换时间和/或PSCell添加时间;
所述终端是否支持切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
所述终端是否支持切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间与PScell同步的时间之和;
第十一指示信息,所述第十一指示信息指示在第二操作之后进行PSCell添加;
第十二指示信息,所述第十二指示信息指示所述终端支持第三操作的并行处理;
第十三指示信息,所述第十三指示信息指示所述终端支持第四操作的串行处理。
可选地,所述第二操作包括以下之一:
向PCell发送MSG1;
接收到PCell发送的MSG2;
向PCell发送消息3MSG3;
接收到PCell发送的MSG4;
向PSCell发送MSGA;
接收到PCell发送的MSGB。
可选地,所述方法还包括:
从网络侧设备接收第四信息;
所述第四信息包括以下一项或多项:
第十四指示信息,所述第十四指示信息指示所述终端是否通过并行处理的方式进行携带PSCell添加的切换;
第十五指示信息,所述第十五指示信息指示所述终端是否通过串行处理的方式进行携带PSCell添加的切换;
第十六指示信息,所述第十六指示信息表示第五操作进行并行处理;
第十七指示信息,所述第十七指示信息表示第六操作进行串行处理。
可选地,所述第三操作或第四操作或第五操作或第六操作,包括以下一项或多项:
小区检测;
时域同步;
频域同步;
自动增益控制;
随机接入。
第二方面,提供一种切换方法,包括:
网络侧设备发送第一信息;
其中,所述第一信息包括以下一项或多项:
第一指示信息,所述第一指示信息指示所述终端在向PCell发送PRACH preamble之后进行PSCell添加;
第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的 RAR之后进行PSCell添加;
第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的MSG4之后进行PSCell添加;
第四指示信息,所述第四指示信息指示所述终端在向PCell发送MSGA之后进行PSCell添加;
第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的MSGB之后进行PSCell添加。
可选地,所述方法还包括:
所述网络侧设备发送第二信息,所述第二信息包括以下一项或多项:
第六指示信息,所述第六指示信息指示所述终端的切换时间包括所述终端的PCell切换时间与所述终端的PSCell添加时间之和;
第七指示信息,所述第七指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和所述终端的PSCell添加时间二者中的最大值;
第八指示信息,所述第八指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和/或所述终端的PSCell添加时间;
第九指示信息,所述第九指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间与所述终端的PSCell小区搜索的时间之和;
第十指示信息,所述第十指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间、所述终端的PCell同步的时间、所述终端的PSCell小区搜索的时间和所述终端的PSCell同步的时间之和。
可选地,所述终端的切换时间的长度为第一时间长度;
在所述第一信息中包括所述第一指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送Preamble的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第二指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送RAR的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第三指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送的MSG4的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第四指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送MSGA的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第五指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收到PCell发送的MSGB的时间长度与所述终端进行PSCell添加的时间长度之和。
可选地,所述终端进行PSCell添加的时间长度,包括:
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送MSGA的时间长度。
可选地,所述方法还包括:
所述网络侧设备发送第二门限,所述第二门限与信道质量有关;
当所述信道质量高于和/或等于所述第二门限的第一取值时,所述终端的切换时间包括:PCell切换时间与PSCell添加时间之和;
当所述信道质量高于和/或等于所述第二门限的第二取值时,所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
当所述信道质量高于和/或等于所述第二门限的第三取值时,所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
当所述信道质量高于和/或等于所述第二门限的第四取值时,所述终端的切换时间包括PCell小区搜索的时间与PScell小区搜索的时间之和;
当所述信道质量高于和/或等于所述第二门限的第五取值时,所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
可选地,所述方法还包括:
所述网络侧设备接收第三信息;
其中,所述第三信息包括以下一项或多项:
所述终端是否支持基于并行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持基于串行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持切换时间包括PCell切换时间与PSCell添加时间之和;
所述终端是否支持切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
所述终端是否支持切换时间包括PCell切换时间和/或PSCell添加时间;
所述终端是否支持切换时间包括PCell小区搜索的时间与PSCell小区搜 索的时间之和;
所述终端是否支持切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间与PSCell同步的时间之和;
第十一指示信息,所述第十一指示信息指示在第二操作之后进行PSCell添加;
第十二指示信息,所述第十二指示信息指示所述终端支持第三操作的并行处理;
第十三指示信息,所述第十三指示信息指示所述终端支持第四操作的串行处理。
可选地,所述第二操作包括以下之一:
向PCell发送MSG1;
接收到PCell发送的MSG2;
向PCell发送MSG3;
接收到PCell发送的MSG4;
向PSCell发送MSGA;
接收到PCell发送的MSGB。
可选地,所述方法还包括:
所述网络侧设备发送第四信息;
其中,所述第四信息包括以下一项或多项:
第十四指示信息,所述第十四指示信息指示所述终端是否通过并行处理的方式进行PSCell添加;
第十五指示信息,所述第十五指示信息指示所述终端是否通过串行处理的方式进行PSCell添加;
第十六指示信息,所述第十六指示信息表示第五操作进行并行处理;
第十七指示信息,所述第十七指示信息表示第六操作进行串行处理。
第三方面,提供一种切换装置,应用于终端,包括:
切换模块,用于进行切换,所述终端的切换时间包括以下至少一项:
PCell切换时间与PSCell添加时间之和;
PCell切换时间和PSCell添加时间二者中的最大值;
PCell切换时间和/或PSCell添加时间;
PCell小区搜索的时间与PSCell小区搜索的时间之和;
PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
第四方面,提供一种切换装置,应用于网络侧设备,包括:
第二发送模块,用于发送第一信息;
其中,所述第一信息包括以下一项或多项:
第一指示信息,所述第一指示信息指示所述终端在向PCell发送PRACH preamble之后进行PSCell添加;
第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的RAR之后进行PSCell添加;
第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的MSG4之后进行PSCell添加;
第四指示信息,所述第四指示信息指示所述终端在向PCell发送MSGA之后进行PSCell添加;
第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的MSGB之后进行PSCell添加。
第五方面,提供一种通信设备,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如第一方面或第二方面所述的方法的步骤。
第六方面,提供一种可读存储介质,所述可读存储介质上存储有程序,所述程序被处理器执行时实现包括如第一方面或第二方面所述的方法的步骤。
在本申请实施例中,终端可以确定进行PSCell添加的时间或者确定在哪个阶段进行PSCell添加,辅助网络调度,明确了在携带PSCell添加的切换的过程中终端的行为,提升系统性能。
附图说明
通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并 不认为是对本申请的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1是本申请实施例可应用的一种无线通信系统的示意图;
图2是本申请实施例提供的一种切换方法的流程图之一;
图3是本申请实施例提供的一种切换方法的流程图之二;
图4是本申请实施例提供的一种切换装置的示意图之一;
图5是本申请实施例提供的一种切换装置的示意图之二;
图6是本申请实施例提供的终端的示意图;
图7是本申请实施例提供的网络侧设备的示意图;
图8是本申请实施例提供的通信设备的示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B,表示包含单独A,单独B,以及A和B都存在三种情况。
在本申请实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其 他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。然而,以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,尽管这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
参见图1,图中示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11、终端12和网络侧设备13。其中,终端也可以称作终端设备或者用户设备(User Equipment,UE),终端可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(VUE)、行人终端(PUE)、智能家居(具有无线通信功能的家居设备。需要说明的是,在本申请实施例并不限定终端11、终端12的具体类型。
网络侧设备13可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base TransceiverStation,BTS)、无线电基站、无线电收发机、基本服务集(BasicServiceSet,BSS)、扩展服务集(ExtendedServiceSet,ESS)、B节点、演进型B节点(gNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(Transmitting Receiving Point,TRP)、无线接入网节点或所述领域中其它某个合适的术语,只要达到相同的技术效果,所述基站不限于指定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
本文中的切换(HO,Hand Over)包括携带PSCell的切换,也可以描述 为携带PSCell添加的切换,也可以描述为PSCell的切换(HO with PSCell),或者添加PSCell的切换(HO with PSCell addition)。
本文中的PCell也可描述为主小区,或者主节点。
本文中的PSCell也可描述为主辅小区,或者辅节点。
本申请的应用场景包括以下至少一个:
(1)NR SA到NE-DC的切换;
(2)NR SA到EN-DC的切换;
(3)NR SA到NR-DC的切换;
(4)NE-DC到NE-DC的切换;
(5)EN-DC到EN-DC的切换;
(6)NR-DC到NR-DC的切换。
本文中的切换时间也可以描述为切换时延(HO delay),或者也可描述为中断时间,包括由切换带来的中断时间。具体的,切换时间包括从终端接收到携带切换的无线资源控制(Radio Resource Control,RRC)消息到终端发送新的PRACH之间的时间。进一步地,发送新的PRACH,包括向新的PCell发送PRACH和/或向新的PSCell发送PRACH。
进一步的,终端切换时间可以理解为终端在这段时间内准备好发送新的PRACH。
参见图2,本申请实施例提供一种切换方法,该方法的执行主体可为终端,具体步骤包括:步骤201。
步骤201:终端进行切换,所述终端的切换时间包括以下至少一项:
(1)终端的PCell切换时间与终端的PSCell添加时间之和;
终端的切换时间包括:“PCell切换时间+PSCell添加时间”,此种情况下,终端串行完成PCell切换和PSCell添加,包括以下几种场景:
场景1:PCell切换和PSCell添加完全串行,即在完成PCell切换之后(具体的,向PCell发送PRACH完成之后,即接收MSG4或者MSB之后),再进行PSCell添加;
场景2:PCell的PRACH流程与PScell添加存在部分时域重叠,包括向PCell发送PRACH Preamble(或者描述为MSG1)之后,开始PScell添加; 或者接收PCell发送的RAR(MSG2)之后,开始PScell添加;或者向PCell发送MSGA之后,开始PScell添加。
(2)所述终端的PCell切换时间和所述终端的PSCell添加时间二者中的最大值;
上述终端的切换时间包括“PCell切换时间和PSCell添加时间二者中的最大值”,此种情况下,终端并行完成PCell切换和PSCell添加,即二者是独立进行的,PSCell的切换的时延包括二者中最大的时延,也可理解为通过向PCell发送PRACH,向PSCell发送PRACH,二者中最晚发送PRACH的时刻作为PSCell的切换结束的标志。
(3)所述终端的PCell切换时间和/或所述终端的PSCell添加时间;
上述终端的切换时间包括“PCell切换时间和/或PSCell添加时间”,此种情况下,终端并行完成PCell切换、PSCell添加,这两个操作各自完全独立进行,不需要规定PSCell的切换结束的标志。在这种场景,Handover with PSCell的切换时间可以描述为PCell切换时间、PSCell添加时间,即分别描述PCell切换和PSCell添加的时间。可以不体现Handover with PSCell的整体时间。
(4)所述终端的PCell小区搜索的时间与所述终端的PSCell小区搜索的时间之和;
上述终端切换的时间包括“PCell小区选择的时间+PSCell小区选择的时间”,此种情况下,终端通过部分串行或者部分并行的方式完成PCell切换和PSCell添加。具体的,该方案是指PCell的小区搜索和PSCell的小区搜索是串行执行,其他过程,包括时间同步、频域同步、发送PRACH等是并行执行的,即各自独立执行的。
(5)PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
上述终端切换的时间包括“PCell小区选择的时间+PCell同步的时间+PSCell小区选择的时间+PSCell同步的时间”,此种情况下,终端通过部分串行或者部分并行的方式完成PCell切换和PSCell添加。具体的,该方案是指PCell的小区搜索、同步和PSCell的小区搜索,同步是串行执行,其他过程, 包括发送PRACH等是并行执行的,即各自独立执行的。
另外上述(1)~(5)的方案中,每个方案的终端的切换时间还可以包括RRC处理时间。
在本申请的一种实施方式中,在满足第一条件的情况下,所述终端的切换时间包括以下一项或多项:PCell切换时间和PSCell添加时间;PCell小区搜索的时间和PSCell小区搜索的时间;PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间;
所述第一条件为:所述终端被配置了目标未知PSCell的SMTC。即,目标PSCell为未知,且配置了该目标PSCell的SMTC。其中,配置了该目标PSCell的SMTC可以理解为为该目标PSCel配置了SMTC,即,终端被配置了该目标PSCel的SMTC。
其中,可选地,终端被配置了目标未知PSCell的SMTC包括:
目标未知PSCell的SMTC在targetcellSMTC-SCG-r16配置,但没有在reconfigurationWithSync配置;或者,目标未知PSCell的SMTC在RRCConnectionReconfiguration配置。
在本申请的一种实施方式中,所述方法还包括:
终端获取第一信息,其中,所述第一信息包括以下一项或多项:
(1)第一指示信息,所述第一指示信息指示所述终端在向PCell发送物理随机接入信道(Physical Random Access Channel,PRACH)(比如主节点PRACH)前导码(preamble)之后进行PSCell添加;
(2)第二指示信息,所述第二指示信息指示所述终端在接收到主小区PCell发送的随机接入响应(Random Access Response,RAR)之后进行PSCell添加;
(3)第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的消息4(MSG4)之后进行PSCell添加;
(4)第四指示信息,所述第四指示信息指示所述终端在向PCell发送消息A(MSGA)之后进行PSCell添加;
(5)第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的消息B(MSGB)之后进行PSCell添加。
在本申请的一种实施方式中,所述方法还包括:
获取第二信息,所述第二信息包括以下一项或多项:
(1)第六指示信息,所述第六指示信息指示所述终端的切换时间包括所述终端的PCell切换时间与所述终端的PSCell添加时间之和;
(2)第七指示信息,所述第七指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和所述终端的PSCell添加时间二者中的最大值;
(3)第八指示信息,所述第八指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和/或所述终端的PSCell添加时间;
(4)第九指示信息,所述第九指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间与所述终端的PSCell小区搜索的时间之和;
(5)第十指示信息,所述第十指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间、所述终端的PCell同步的时间、所述终端的PSCell小区搜索的时间和所述终端的PSCell同步的时间之和。
在本申请的一种实施方式中,所述终端的切换时间的长度为第一时间长度;
在所述第一信息中包括所述第一指示信息的情况下,所述第一时间长度(T1):从所述终端接收到携带切换的无线资源控制(Radio Resource Control,RRC)消息到所述终端向PCell发送Preamble的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第二指示信息的情况下,所述第一时间长度(T2)为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送随机接入响应(Random Access Response,RAR)的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第三指示信息的情况下,所述第一时间长度(T3)为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送的MSG4的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第四指示信息的情况下,所述第一时间长度 (T4)为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送MSGA的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第五指示信息的情况下,所述第一时间长度(T5)为:从所述终端接收到携带切换的RRC消息到所述终端接收到PCell发送的MSGB的时间长度与所述终端进行PSCell添加的时间长度之和。
在本申请的一种实施方式中,所述终端进行PSCell添加的时间长度,包括:
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送MSGA的时间长度。
在本申请的一种实施方式中,所述方法还包括:
终端获取第一门限,其中所述第一门限与信道质量相关;
当所述信道质量高于和/或等于所述第一门限的第一取值时,所述终端确定在向PCell发送消息1(MSG1)之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第二取值时,所述终端确定在接收PCell发送的消息2(MSG2)之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第三取值时,所述终端确定在接收PCell发送的MSG4之后,进行PSCell添加;
或者,
当所述信道质量低于和/或等于所述第一门限的第一取值,且所述信道质量高于和/或等于所述第一门限的第二取值时,所述终端确定在接收PCell发送的MSG2之后,进行PSCell添加;
或者,
当所述信道质量低于和/或等于所述第一门限的第二取值,且所述信道质量高于和/或等于所述第一门限的第三取值时,所述终端在接收PCell发送的MSG4之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第四取值时,所述终端确定在向PCell发送MSGA之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第五取值时,所述终端确定在接收PCell发送的MSGB之后,进行PSCell添加。
或者,
当所述信道质量低于和/或等于第一门限的第四取值,且所述信道质量高于和/或等于所述第一门限的第五取值时,所述终端确定在接收PCell发送的 MSGB之后,进行PSCell添加。
可选地,第一门限包括:参考信号接收功率(Reference Signal Receiving Power,RSRP)、参考信号接收质量(Reference Signal Receiving Quality,RSRQ)、信号与干扰加噪声比(Signal to Interference plus Noise Ratio,SINR)中的至少一个。信道质量包括:RSRP、RSRQ、SINR中的至少一个,信道质量由终端测量获得。
在本申请的一种实施方式中,所述方法还包括:
终端获取第二门限,所述第二门限与信道质量有关;
当所述信道质量高于和/或等于所述第二门限的第一取值时,所述终端的切换时间包括:PCell切换时间与PSCell添加时间之和;
当所述信道质量高于和/或等于所述第二门限的第二取值时,所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
当所述信道质量高于和/或等于所述第二门限的第三取值时,所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
当所述信道质量高于和/或等于所述第二门限的第四取值时,所述终端的切换时间包括PCell小区搜索的时间与PScell小区搜索的时间之和;
当所述信道质量高于和/或等于所述第二门限的第五取值时,所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
可选地,第二门限包括:RSRP、RSRQ、SINR中的至少一个。信道质量包括:RSRP、RSRQ、SINR中的至少一个,信道质量由终端测量获得。
在本申请的一种实施方式中,所述方法还包括:
终端向网络侧发送第三信息;
其中,所述第三信息包括以下一项或多项:
(1)所述终端是否支持基于并行处理的方式进行PCell切换和PSCell添加;
其中,并行处理的方式进行携带PSCell添加的切换(HO with PSCell)是指终端同时进行PCell切换和PSCell添加。此时,完成携带PSCell添加的切换的时长为:PCell切换时延和PSCell添加时延中的最大值(max(PCell切 换时延,PSCell添加时延))。
(2)所述终端是否支持基于串行处理的方式进行PCell切换和PSCell添加;
其中,串行处理的方式进行携带PSCell添加的切换(HO with PSCell)是指终端串行进行PCell切换和PSCell添加,在完成PCell切换之后或完成PCell切换的大部分流程之后,再进行PSCell添加。此时,完成携带PSCell添加的切换的时长比并行方式的时间要长,具体为PCell切换时延+PSCell添加时延+T(这里的T与终端在PCell PRACH的哪个环节开展PSCell添加有关)。
(3)所述终端是否支持切换时间包括PCell切换时间与PSCell添加时间之和;
(4)所述终端是否支持切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
(5)所述终端是否支持切换时间包括PCell切换时间和/或PSCell添加时间;
(6)所述终端是否支持切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
(7)所述终端是否支持切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间与PScell同步的时间之和;
(8)第十一指示信息,所述第十一指示信息指示在第二操作之后进行PSCell添加;
也就是,通过第十一指示信息上报具体在哪个环节进行PSCell添加。
(9)第十二指示信息,所述第十二指示信息指示所述终端支持第三操作的并行处理;
也就是,通过第十二指示信息上报支持哪些部分的并行处理。
(10)第十三指示信息,所述第十三指示信息指示所述终端支持第四操作的串行处理。
也就是,通过第十三指示信息上报支持哪些部分的串行处理。
可以理解的是,网络侧可以根据第三信息向终端发送第一信息,也就是网络侧可以根据终端上报的能力或终端的实际需求指示终端何时进行PSCell添 加。
可选地,所述第二操作包括以下之一:
(1)向PCell发送MSG1;
(2)接收到PCell发送的MSG2;
(3)向PCell发送消息3(MSG3);
(4)接收到PCell发送的MSG4;
(5)向PSCell发送MSGA;
(6)接收到PCell发送的MSGB。
在本申请的一种实施方式中,所述方法还包括:
终端确定第一方式,所述第一方式表示所述终端进行携带PSCell添加的切换的方式。
在本申请的一种实施方式中,所述终端确定第一方式的步骤,包括:
终端从网络侧接收第四信息;
终端根据所述第四信息,确定所述第一方式(即,基于网络指示获取如何进行携带PSCell添加的切换);
或者,
终端根据协议约定,确定所述第一方式(即,终端通过协议约定获取如何进行携带PSCell添加的切换)。
在本申请的一种实施方式中,所述第四信息包括以下一项或多项:
(1)第十四指示信息,所述第十四指示信息指示所述终端是否通过并行处理的方式进行PSCell添加;
(2)第十五指示信息,所述第十五指示信息指示所述终端是否通过串行处理的方式进行PSCell添加;
(3)第十六指示信息,所述第十六指示信息表示第五操作进行并行处理;
也就是,通过第十六指示信息进一步指示终端在哪个环节进行并行处理。
(4)第十七指示信息,所述第十七指示信息表示第六操作进行串行处理。
也就是,通过第十七指示信息进一步指示终端在哪个环节进行串行处理。
在本申请的一种实施方式中,所述协议约定包括预定义规则,所述预定义规则包括:
如果网络侧为目标PSCell配置基于同步信号块的测量时间配置(SMTC),则采用串行处理方式;否则(即上述条件不满足),采用并行处理方式。
在本申请的一种实施方式中,所述第三操作或第四操作或第五操作或第六操作,包括以下一项或多项:
(1)小区检测;
也就是,可以在小区检测进行并行处理或串行处理。
(2)时域同步;
也就是,可以在时域同步进行并行处理或串行处理。
(3)频域同步;
也就是,可以在频域同步进行并行处理或串行处理。
(4)自动增益控制(automatic gain control,AGC);
也就是,可以在自动增益控制进行并行处理或串行处理。
(5)随机接入。
也就是,可以在随机接入进行并行处理或串行处理。
小区搜索至少包括AGC和小区检测中的至少一项。小区检测还可以描述为PSS/SSS检测,即Primary Synchronization Signal/Secondary Synchronization Signal检测。
下面结合具体实施例介绍本申请的实施方式。
终端接收网络发送的第一信息,第一信息指示终端何时开展PSCell添加。
(1)可选地,第一信息可以包括:第一指示信息,第一指示信息指示终端在向PCell发送PRACH前导码(preamble)(即向PCell发送消息1(MSG1)之后)之后进行PSCell添加。
基于第一指示信息的指示,终端完成携带PSCell添加的切换(HO with PSCell)的时间长度为T1。
T1=从接收携带切换(HO with PSCell)的RRC消息到终端向PCell发送Preamble的时间+终端进行PSCell添加的时间长度。
其中,终端进行PSCell添加的时间长度可以理解为是:从终端向PCell发送Preamble到终端向PSCell发送Preamble的时间或从终端向PCell发送Preamble到终端向PSCell发送消息A(MSGA)的时间。
但由于MN PCell的随机接入尚未完成,在此环节开展PSCell添加,由于存在PCell切换失败的风险,可能会带来一定的资源浪费。
(2)可选地,第一信息可以包括第二指示信息,第二指示信息指示终端在接收到PCell发送的RAR)即接收消息2(MSG2))之后发起进行PSCell添加。
基于第二指示信息的指示,终端完成携带PScell添加的切换(HO with PSCell)的时间长度为T2。
T2=从接收携带切换(HO with PSCell)的RRC消息到终端接收PCell发送的RAR的时间+终端进行PSCell添加的时间长度。
其中,终端进行PSCell添加的时间长度可以理解为是:从终端接收PCell发送的RAR到终端向PSCell发送Pramble的时间或从终端接收PCell发送的RAR到终端向PSCell发送MSGA的时间。
相比于T1,T2的时间更长,T2增加的时间为终端接收PCell发送的RAR的时间。但由于MN PCell的随机接入尚未完成,在此环节开展PScell添加,虽然相比于第一指示信息指示的方案可以提升一定的鲁棒性,但由于仍然存在PCell切换失败的风险,可能会带来一定的资源浪费。
(3)可选地,第一信息可以包括第三指示信息,第三指示信息指示终端在接收到PCell发送的消息4(MSG4)之后进行PSCell添加。
基于第三指示信息的指示,终端完成携带PSCell添加的切换(HO with PSCell)的时间长度为T3。
T3=从接收携带切换(HO with PSCell)的RRC消息到终端接收PCell发送的MSG4的时间+终端进行PSCell添加的时间长度。
其中,终端进行PSCell添加的时间长度可以理解为是:从终端接收PCell发送的MSG4到终端向PSCell发送Pramble的时间或从终端接收PCell发送的MSG4到终端向PSCell发送MSGA的时间。
相比于T1和T2,T3的时间更长,其中,相比于T1,T3增加的时间为终端接收PCell发送的RAR的时间,终端发送MSG3的时间,以及终端接收MSG4的时间。但基于第三指示信息指示的终端再发起PSCell添加的时候可以确定已经成功完成了MN PCell的切换,可以提升系统的鲁棒性。
进一步的,如果考虑两步RACH,那么第一信息可以包括第四指示信息,第四指示信息指示终端在向PCell发送MSGA之后进行PSCell添加。
基于第四指示信息的指示,终端完成携带PScell添加的切换(HO with PSCell)的时间长度为T4。
T4=从接收携带切换(HO with PSCell)的RRC消息到终端向PCell发送MSGA的时间+终端进行PSCell添加的时间长度。
其中,终端进行PSCell添加的时间长度可以理解为是:从终端向PCell发送MSGA到终端向PSCell发送Pramble的时间或从终端向PCell发送MSGA到终端向PSCell发送MSGA的时间。
但由于MN PCell的随机接入尚未完成,再此环节开展PScell添加,由于存在PCell切换失败的风险,可能会带来一定的资源浪费。
进一步的,如果考虑两步RACH,那么第一信息可以包括第五指示信息,第五指示信息指示终端接收到PCell发送的MSGB之后进行PSCell添加。
基于第五指示信息的指示,终端完成携带PScell添加的切换(HO with PSCell)的时间长度为T5。
T5=从接收携带切换(HO with PSCell)的RRC消息到终端接收PCell发送的MSGB的时间+终端进行PSCell添加的时间长度。
其中,终端进行PSCell添加的时间长度可以理解为是:从终端接收PCell发送的MSGB到终端向PSCell发送Pramble的时间或从终端接收PCell发送的MSGB到终端向PSCell发送MSGA的时间。
相比于T4,T5的时间更长,相比于T4,T5增加的时间为终端接收PCell发送的MSGB的时间。但由于MN PCell的随机接入尚未完成,在此环节开展PScell添加,虽然相比于第一指示信息指示的方案可以提升一定的鲁棒性,但由于仍然存在PCell切换失败的风险,可能会带来一定的资源浪费。
上述第一信息的引入主要是基于考虑如下:PRACH区分四步RACH和两步RACH。
以四步RACH为例,随机接入过程共包括MSG1,MSG2,MSG3,MSG4。当终端接收到携带PSCell添加的切换(HO with PSCell)的RRC消息之后,需要确定在PCell切换的PRACH完成之前还是之后进行PSCell添加。
如果是在PRACH完成之前开展PSCell添加,需要确定在MSG1,MSG2,MSG3,MSG4的哪个环节开展。因为越早开展PSCell添加,完成携带PSCell添加的切换的时延越短,调度限制也越短,可以快速进入双连接模式。但是在PCell切换的PRACH完成之前开展PSCell添加,由于PCell切换的随机接入还存在失败的可能,如果PCell切换的随机接入失败,那么提前开始的PSCell添加也会造成一定的资源浪费。
同样的问题也存在两步RACH中,即需要确定在PCell切换的PRACH完成之前还是之后进行PSCell添加,如果是在PRACH完成之前开展PSCell添加,需要确定在MSGA,MSGB的哪个环节开展。
针对上述问题,可以通过网络指示终端在哪个环节开展PSCell添加,如果网络期望可以快速进入双连接模式,那么网络可以指示终端尽早开展PSCell添加,此时需要承担一定的切换失败的风险。
如果网络希望避免资源浪费,提高双连接建立的鲁棒性,同时进入双连接的需求并不迫切,那么网络可以指示终端在PCell切换的PRACH流程的靠后面的环节开展PSCell添加。
进一步的,终端接收网络下发的第一门限,第一门限与信道质量相关,信道质量包括但不限于:RSRP和/或RSRQ和/或SINR。第一门限可以有多种取值。
当终端的信道质量满足第一门限,终端可以确定何时开展PSCell添加。
可选地,当信道质量高于和/或等于第一门限的第一取值时,终端可以在向PCell发送MSG1之后,进行PSCell添加;
当信道质量高于和/或等于第一门限的第二取值时,终端可以在接收PCell发送的MSG2之后,进行PSCell添加;
当信道质量高于和/或等于第一门限的第三取值时,终端可以在接收PCell发送的MSG4之后,进行PSCell添加。
上述三个门限取值也可以任意组合使用。
比如,当信道质量高于和/或等于第一门限的第一取值时,终端可以在向PCell发送MSG1之后,进行PSCell添加;
当信道质量低于和/或等于第一门限的第一取值,但信道质量高于和/或等 于第一门限的第二取值时,终端可以在接收PCell发送的MSG2之后,进行PSCell添加;
当信道质量低于和/或等于第一门限的第二取值,但信道质量高于和/或等于第一门限的第三取值时,终端可以在接收PCell发送的MSG4之后,进行PSCell添加。
可选地,当信道质量高于和/或等于第一门限的第四取值时,终端可以在向PCell发送MSGA之后,进行PSCell添加;
当信道质量高于和/或等于第一门限的第五取值时,终端可以在接收PCell发送的MSGB之后,进行PSCell添加。
上述两个门限取值也可以任意组合使用。比如,当信道质量高于和/或等于第一门限的第四取值时,终端可以在向PCell发送MSGA之后,进行PSCell添加;当信道质量低于和/或等于第一门限的第四取值,但信道质量高于和/或等于第一门限的第五取值时,终端可以在接收PCell发送的MSGB之后,进行PSCell添加。
进一步的,考虑到终端的具体实现不同,终端还可以向网络上报以下一项或多项能力信息:
(1)终端是否支持基于并行方式进行携带PSCell添加的切换(HO with PSCell);
(2)终端是否支持基于并行方式进行携带PSCell添加的切换。
其中,所谓并行方式进行携带PSCell添加的切换是指终端同时进行PCell切换和PSCell添加。此时,完成携带PSCell添加的切换的时间长度为max(PCell切换时延,PSCell添加时延)。
所谓串行方式进行携带PSCell添加的切换是指终端串行进行PCell切换和PSCell添加,在完成PCell切换之后或完成PCell切换的大部分流程之后,再进行PSCell添加。此时,完成携带PSCell添加的切换的时间长度比并行方式的时间要长,具体为PCell切换时延+PSCell添加时延+T(这里的T与终端在PCell PRACH的哪个环节开展PSCell添加有关)。
关于串行方式,具体的,终端还可以上报具体在哪个环节开展PSCell添加,包括在MSG1之后开展PSCell添加,在MSG2之后开展PSCell添加;在 MSG3之后开展PSCell添加,在MSGA之后开展PSCell添加,在MSGB之后开展PSCell添加。
关于并行方式,也存在部分并行的方式,终端还可以上报支持哪些部分的并行处理,包括小区检测是否可以并行处理(即是否可以同时开展PCell小区检测,PSCell小区检测);
和/或,时域/频域同步是否可以并行处理(即是否可以同时开展PCell小区的时域/频域同步,PSCell小区的时域/频域同步);
和/或,自动增益控制(Automatic Gain Control,AGC)是否可以并行处理(即是否可以同时开展PCell小区AGC,PSCell小区的AGC);
和/或,随即接入是否可以并行处理(即是否可以同时开展PCell小区的PRACH,PSCell小区的PRACH)。
关于串行方式,也存在部分串行的方式,终端还可以上报支持哪些部分的串行处理,包括:小区检测是否需要串行处理(即是否可以串行开展PCell小区检测,PSCell小区检测);
和/或,时域/频域同步是否需要串行处理(即是否可以串行开展PCell小区的时域/频域同步,PSCell小区的时域/频域同步);
和/或,AGC是否需要串行处理(即是否可以串行开展PCell小区AGC,PSCell小区的AGC);
和/或,随即接入是否需要串行处理(即是否可以串行开展PCell小区的PRACH,PSCell小区的PRACH)。
进一步的,终端可以获取如何进行携带PScell添加的切换。终端获取方式包括:获取网络指示信息(第四信息),或者,协议预定义规则。
上述第四信息包括指示终端是否通过并行方式进行携带PSCell添加的切换,和/或指示终端是否通过串行方式进行携带PSCell添加的切换。
进一步的,关于并行方式,还可以进一步指示终端在哪个环节进行并行处理,包括以下一项或多项:
(1)小区检测进行并行处理;
(2)时域/频域同步进行并行处理;
(3)AGC进行并行处理;
(4)随机接入进行并行处理。
进一步的,关于串行方式,还可以进一步指示终端在哪个环节进行串行处理,包括以下一项或多项:
(1)小区检测进行串行处理;
(2)时域/频域同步进行串行处理;
(3)AGC进行串行处理;
(4)随机接入进行串行处理。
协议预定义规则包括:如果网络为目标PSCell配置了基于SSB的RRM测量时间配置(SSB-based RRM Measurement Timing Configuration,SMTC)(可以通过targetcellSMTC-SCG进行配置),那么采用串行方式;如果上述条件不满足,采用并行方式。
现有技术中,PCell切换和PSCell添加是分别进行的。但在携带PSCell添加的切换的过程中,由1条RRC消息触发终端进行PCell切换和PSCell添加,由于没有规定在流程中PCell切换和PSCell添加如何执行,导致在携带PSCell添加的切换的过程中,终端行为不确定,完成携带PSCell添加的切换需要的时间不确定,而该时长会影响网络调度。而在本申请实施例中,终端可以确定进行PSCell添加的时间或者确定在哪个阶段进行PSCell添加,辅助网络调度,明确了在携带PSCell添加的切换的过程中终端的行为,提升系统性能。
参见图3,本申请实施例通过一种切换方法,具体步骤包括:步骤301。
步骤301:网络侧设备发送第一信息;
其中,所述第一信息包括以下一项或多项:
第一指示信息,所述第一指示信息指示所述终端在向PCell发送PRACH preamble之后进行PSCell添加;
第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的RAR之后进行PSCell添加;
第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的MSG4之后进行PSCell添加;
第四指示信息,所述第四指示信息指示所述终端在向PCell发送MSGA 之后进行PSCell添加;
第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的MSGB之后进行PSCell添加。
在本申请的一种实施方式中,所述方法还包括:
网络侧设备发送第二信息,所述第二信息包括以下一项或多项:
第六指示信息,所述第六指示信息指示所述终端的切换时间包括所述终端的PCell切换时间与所述终端的PSCell添加时间之和;
第七指示信息,所述第七指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和所述终端的PSCell添加时间二者中的最大值;
第八指示信息,所述第八指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和/或所述终端的PSCell添加时间;
第九指示信息,所述第九指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间与所述终端的PSCell小区搜索的时间之和;
第十指示信息,所述第十指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间、所述终端的PCell同步的时间、所述终端的PSCell小区搜索的时间和所述终端的PSCell同步的时间之和。
在本申请的一种实施方式中,所述终端的切换时间的长度为第一时间长度;
在所述第一信息中包括所述第一指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送Preamble的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第二指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送RAR的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第三指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送的MSG4的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第四指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送MSGA的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第五指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收到PCell发送的MSGB的时间长度与所述终端进行PSCell添加的时间长度之和。
在本申请的一种实施方式中,所述终端进行PSCell添加的时间长度,包括:
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送MSGA的时间长度。
在本申请的一种实施方式中,所述方法还包括:
网络侧设备发送第二门限,所述第二门限与信道质量有关;
当所述信道质量高于和/或等于所述第二门限的第一取值时,所述终端的切换时间包括:PCell切换时间与PSCell添加时间之和;
当所述信道质量高于和/或等于所述第二门限的第二取值时,所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
当所述信道质量高于和/或等于所述第二门限的第三取值时,所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
当所述信道质量高于和/或等于所述第二门限的第四取值时,所述终端的切换时间包括PCell小区搜索的时间与PScell小区搜索的时间之和;
当所述信道质量高于和/或等于所述第二门限的第五取值时,所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
在本申请的一种实施方式中,所述方法还包括:
网络侧设备接收第三信息;
其中,所述第三信息包括以下一项或多项:
所述终端是否支持基于并行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持基于串行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持切换时间包括PCell切换时间与PSCell添加时间之和;
所述终端是否支持切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
所述终端是否支持切换时间包括PCell切换时间和/或PSCell添加时间;
所述终端是否支持切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
所述终端是否支持切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间与PScell同步的时间之和;
第十一指示信息,所述第十一指示信息指示在第二操作之后进行PSCell添加;
第十二指示信息,所述第十二指示信息指示所述终端支持第三操作的并行处理;
第十三指示信息,所述第十三指示信息指示所述终端支持第四操作的串行处理。
在本申请的一种实施方式中,所述第二操作包括以下之一:
向PCell发送MSG1;
接收到PCell发送的MSG2;
向PCell发送MSG3;
接收到PCell发送的MSG4;
向PSCell发送MSGA;
接收到PCell发送的MSGB。
在本申请的一种实施方式中,所述方法还包括:
网络侧设备发送第四信息;
其中,所述第四信息包括以下一项或多项:
第十四指示信息,所述第十四指示信息指示所述终端是否通过并行处理的方式进行PSCell添加;
第十五指示信息,所述第十五指示信息指示所述终端是否通过串行处理的方式进行PSCell添加;
第十六指示信息,所述第十六指示信息表示第五操作进行并行处理;
第十七指示信息,所述第十七指示信息表示第六操作进行串行处理。
可以理解的是,网络侧方法实施例与终端侧方法实施例相同的内容可以参考图2所示的终端侧方法实施例中的描述。
在本申请实施例中,网络侧可以指示终端进行PSCell添加的时间或者在哪个阶段进行PSCell添加,明确了在携带PSCell添加的切换的过程中终端的行为,提升系统性能。
参见图4,本申请实施例提供一种切换装置,应用于终端,该装置400包括:
切换模块401,用于进行切换,所述终端的切换时间包括以下至少一项:
PCell切换时间与PSCell添加时间之和;
PCell切换时间和PSCell添加时间二者中的最大值;
PCell切换时间和/或PSCell添加时间;
PCell小区搜索的时间与PSCell小区搜索的时间之和;
PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
在本申请的一种实施方式中,在满足第一条件的情况下,所述终端的切换时间包括以下一项或多项:PCell切换时间和PSCell添加时间;PCell小区搜索的时间和PSCell小区搜索的时间;PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间;
所述第一条件为:所述终端被配置了目标未知PSCell的SMTC。
在本申请的一种实施方式中,所述装置还包括:
第一获取模块,用于获取第一信息,
其中,所述第一信息包括以下一项或多项:
第一指示信息,所述第一指示信息指示所述终端在向PCell发送PRACH preamble之后进行PSCell添加;
第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的RAR之后进行PSCell添加;
第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的MSG4之后进行PSCell添加;
第四指示信息,所述第四指示信息指示所述终端在向PCell发送消息A MSGA之后进行PSCell添加;
第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的MSGB之后进行PSCell添加。
在本申请的一种实施方式中,所述装置还包括:
第二获取模块,用于获取第二信息,所述第二信息包括以下一项或多项:
第六指示信息,所述第六指示信息指示所述终端的切换时间包括所述终端的PCell切换时间与所述终端的PSCell添加时间之和;
第七指示信息,所述第七指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和所述终端的PSCell添加时间二者中的最大值;
第八指示信息,所述第八指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和/或所述终端的PSCell添加时间;
第九指示信息,所述第九指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间与所述终端的PSCell小区搜索的时间之和;
第十指示信息,所述第十指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间、所述终端的PCell同步的时间、所述终端的PSCell小区搜索的时间和所述终端的PSCell同步的时间之和。
在本申请的一种实施方式中,所述终端的切换时间的长度为第一时间长度;
在所述第一信息中包括所述第一指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送Preamble的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第二指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送RAR的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第三指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送的MSG4的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第四指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送MSGA的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第五指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收到PCell发送的MSGB的时间长度与所述终端进行PSCell添加的时间长度之和。
在本申请的一种实施方式中,所述终端进行PSCell添加的时间长度,包括:
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送MSGA的时间长度。
在本申请的一种实施方式中,所述装置还包括:
第三获取模块,用于获取第一门限,其中所述第一门限与信道质量相关;
当所述信道质量高于和/或等于所述第一门限的第一取值时,确定在向PCell发送MSG1之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第二取值时,确定在接收PCell发送的MSG2之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第三取值时,确定在接收PCell发送的MSG4之后,进行PSCell添加;
或者,
当所述信道质量低于和/或等于所述第一门限的第一取值,且所述信道质量高于和/或等于所述第一门限的第二取值时,确定在接收PCell发送的MSG2之后,进行PSCell添加;
或者,
当所述信道质量低于和/或等于所述第一门限的第二取值,且所述信道质量高于和/或等于所述第一门限的第三取值时,在接收PCell发送的MSG4之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第四取值时,确定在向PCell发送MSGA之后,进行PSCell添加;
或者,
当所述信道质量高于和/或等于所述第一门限的第五取值时,确定在接收PCell发送的MSGB之后,进行PSCell添加;
或者,
当所述信道质量低于和/或等于第一门限的第四取值,且所述信道质量高于和/或等于所述第一门限的第五取值时,确定在接收PCell发送的MSGB之后,进行PSCell添加。
在本申请的一种实施方式中,所述装置还包括:
第四获取模块,用于获取第二门限,所述第二门限与信道质量有关;
当所述信道质量高于和/或等于所述第二门限的第一取值时,所述终端的切换时间包括:PCell切换时间与PSCell添加时间之和;
当所述信道质量高于和/或等于所述第二门限的第二取值时,所述终端的 切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
当所述信道质量高于和/或等于所述第二门限的第三取值时,所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
当所述信道质量高于和/或等于所述第二门限的第四取值时,所述终端的切换时间包括PCell小区搜索的时间与PScell小区搜索的时间之和;
当所述信道质量高于和/或等于所述第二门限的第五取值时,所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
在本申请的一种实施方式中,所述装置还包括:
第一发送模块,用于向网络侧设备发送第三信息;
其中,所述第三信息包括以下一项或多项:
所述终端是否支持基于并行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持基于串行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持切换时间包括PCell切换时间与PSCell添加时间之和;
所述终端是否支持切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
所述终端是否支持切换时间包括PCell切换时间和/或PSCell添加时间;
所述终端是否支持切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
所述终端是否支持切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间与PScell同步的时间之和;
第十一指示信息,所述第十一指示信息指示在第二操作之后进行PSCell添加;
第十二指示信息,所述第十二指示信息指示所述终端支持第三操作的并行处理;
第十三指示信息,所述第十三指示信息指示所述终端支持第四操作的串行处理。
在本申请的一种实施方式中,所述第二操作包括以下之一:
向PCell发送MSG1;
接收到PCell发送的MSG2;
向PCell发送MSG3;
接收到PCell发送的MSG4;
向PSCell发送MSGA;
接收到PCell发送的MSGB。
在本申请的一种实施方式中,所述装置还包括:
第二确定模块,用于确定第一方式,所述第一方式表示所述终端进行携带PSCell添加的切换的方式。
在本申请的一种实施方式中,第二确定模块进一步用于从网络侧设备接收第四信息;根据所述第四信息,确定所述第一方式;或者,根据协议约定,确定所述第一方式。
在本申请的一种实施方式中,所述第四信息包括以下一项或多项:
第十四指示信息,所述第十四指示信息指示所述终端是否通过并行处理的方式进行携带PSCell添加的切换;
第十五指示信息,所述第十五指示信息指示所述终端是否通过串行处理的方式进行携带PSCell添加的切换;
第十六指示信息,所述第十六指示信息表示第五操作进行并行处理;
第十七指示信息,所述第十七指示信息表示第六操作进行串行处理。
在本申请的一种实施方式中,所述协议约定包括预定义规则,所述预定义规则包括:
如果网络侧为目标PSCell配置基于同步信号块的测量时间配置,则采用串行处理方式;否则,采用并行处理方式。
在本申请的一种实施方式中,所述第三操作或第四操作或第五操作或第六操作,包括以下一项或多项:
小区检测;
时域同步;
频域同步;
自动增益控制;
随机接入。
本申请实施例提供的装置能够实现图2所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
参见图5,本申请实施例提供一种切换装置,应用于网络侧设备,该装置500包括:
第二发送模块501,用于发送第一信息;
其中,所述第一信息包括以下一项或多项:
第一指示信息,所述第一指示信息指示所述终端在向PCell发送PRACH preamble之后进行PSCell添加;
第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的RAR之后进行PSCell添加;
第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的MSG4之后进行PSCell添加;
第四指示信息,所述第四指示信息指示所述终端在向PCell发送MSGA之后进行PSCell添加;
第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的MSGB之后进行PSCell添加。
在本申请的一种实施方式,所述装置还包括:
第三发送模块,用于发送第二信息,所述第二信息包括以下一项或多项:
第六指示信息,所述第六指示信息指示所述终端的切换时间包括所述终端的PCell切换时间与所述终端的PSCell添加时间之和;
第七指示信息,所述第七指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和所述终端的PSCell添加时间二者中的最大值;
第八指示信息,所述第八指示信息指示所述终端的切换时间包括所述终端的PCell切换时间和/或所述终端的PSCell添加时间;
第九指示信息,所述第九指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间与所述终端的PSCell小区搜索的时间之和;
第十指示信息,所述第十指示信息指示所述终端的切换时间包括所述终端的PCell小区搜索的时间、所述终端的PCell同步的时间、所述终端的PSCell小区搜索的时间和所述终端的PSCell同步的时间之和。
可选地,所述终端的切换时间的长度为第一时间长度;
在所述第一信息中包括所述第一指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送Preamble的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第二指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送RAR的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第三指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送的MSG4的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第四指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送MSGA的时间长度与所述终端进行PSCell添加的时间长度之和;
或者,
在所述第一信息中包括所述第五指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收到PCell发送的MSGB的时间长度与所述终端进行PSCell添加的时间长度之和。
可选地,所述终端进行PSCell添加的时间长度,包括:
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的RAR到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送MSGA的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送Pramble的时间长度;
或者,
从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送MSGA的时间长度。
在本申请的一种实施方式,所述装置还包括:
第四发送模块,用于发送第二门限,所述第二门限与信道质量有关;
当所述信道质量高于和/或等于所述第二门限的第一取值时,所述终端的切换时间包括:PCell切换时间与PSCell添加时间之和;
当所述信道质量高于和/或等于所述第二门限的第二取值时,所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
当所述信道质量高于和/或等于所述第二门限的第三取值时,所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
当所述信道质量高于和/或等于所述第二门限的第四取值时,所述终端的切换时间包括PCell小区搜索的时间与PScell小区搜索的时间之和;
当所述信道质量高于和/或等于所述第二门限的第五取值时,所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
在本申请的一种实施方式,所述装置还包括:
第一接收模块,用于接收第三信息;
其中,所述第三信息包括以下一项或多项:
所述终端是否支持基于并行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持基于串行处理的方式进行PCell切换和PSCell添加;
所述终端是否支持切换时间包括PCell切换时间与PSCell添加时间之和;
所述终端是否支持切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
所述终端是否支持切换时间包括PCell切换时间和/或PSCell添加时间;
所述终端是否支持切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
所述终端是否支持切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间与PScell同步的时间之和;
第十一指示信息,所述第十一指示信息指示在第二操作之后进行PSCell添加;
第十二指示信息,所述第十二指示信息指示所述终端支持第三操作的并行处理;
第十三指示信息,所述第十三指示信息指示所述终端支持第四操作的串行处理。
可选地,所述第二操作包括以下之一:
向PCell发送MSG1;
接收到PCell发送的MSG2;
向PCell发送MSG3;
接收到PCell发送的MSG4;
向PSCell发送MSGA;
接收到PCell发送的MSGB。
在本申请的一种实施方式,所述装置还包括:
第五发送模块,用于发送第四信息;
其中,所述第四信息包括以下一项或多项:
第十四指示信息,所述第十四指示信息指示所述终端是否通过并行处理的 方式进行PSCell添加;
第十五指示信息,所述第十五指示信息指示所述终端是否通过串行处理的方式进行PSCell添加;
第十六指示信息,所述第十六指示信息表示第五操作进行并行处理;
第十七指示信息,所述第十七指示信息表示第六操作进行串行处理。
本申请实施例提供的装置能够实现图3所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
具体地,图6为实现本申请实施例的一种终端的硬件结构示意图,该终端600包括但不限于:射频单元601、网络模块602、音频输出单元603、输入单元604、传感器605、显示单元606、用户输入单元607、接口单元608、存储器609、以及处理器610等中的至少部分部件。
本领域技术人员可以理解,终端600还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器610逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图6中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元604可以包括图形处理器(Graphics Processing Unit,GPU)6041和麦克风6042,图形处理器6041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元606可包括显示面板6061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板6061。用户输入单元607包括触控面板6071以及其他输入设备6072。触控面板6071,也称为触摸屏。触控面板6071可包括触摸检测装置和触摸控制器两个部分。其他输入设备6072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元601将来自网络侧设备的下行数据接收后,给处理器610处理;另外,将上行的数据发送给网络侧设备。通常,射频单元601包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器609可用于存储软件程序或指令以及各种数据。存储器609可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器609可以包括高速随机存取存储器,还可以包括非瞬态存储器,其中,非瞬态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。例如至少一个磁盘存储器件、闪存器件、或其他非瞬态固态存储器件。
处理器610可包括一个或多个处理单元;可选地,处理器610可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器610中。
本申请实施例提供的终端能够实现图2所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
具体地,本申请实施例还提供了一种网络侧设备。如图7所示,该网络侧设备700包括:天线701、射频装置702、基带装置703。天线701与射频装置702连接。在上行方向上,射频装置702通过天线701接收信息,将接收的信息发送给基带装置703进行处理。在下行方向上,基带装置703对要发送的信息进行处理,并发送给射频装置702,射频装置702对收到的信息进行处理后经过天线701发送出去。
上述频带处理装置可以位于基带装置703中,以上实施例中网络侧设备执行的方法可以在基带装置703中实现,该基带装置703包括处理器704和存储器705。
基带装置703例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图7所示,其中一个芯片例如为处理器704,与存储器705连接,以调用存储器705中的程序,执行以上方法实施例中所示的网络设备操作。
该基带装置703还可以包括网络接口706,用于与射频装置702交互信息,该接口例如为通用公共无线接口(common public radio interface,简称CPRI)。
具体地,本申请实施例的网络侧设备还包括:存储在存储器705上并可在处理器704上运行的指令或程序。
可以理解的是,处理器704调用存储器705中的指令或程序执行图5所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
如图8所示,本申请实施例还提供一种通信设备800,包括处理器801,存储器802,存储在存储器802上并可在所述处理器801上运行的程序或指令,该程序或指令被处理器801执行时实现上述图2或图3方法实施例的各个过程,且能达到相同的技术效果。为避免重复,这里不再赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述图2或图3所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
结合本申请公开内容所描述的方法或者算法的步骤可以硬件的方式来实现,也可以由在处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于RAM、闪存、ROM、EPROM、EEPROM、寄存器、硬盘、移动硬盘、只读光盘或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以携带在ASIC中。另外,该ASIC可以携带在核心网接口设备中。当然,处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介 质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式,对本申请的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本申请的具体实施方式而已,并不用于限定本申请的保护范围,凡在本申请的技术方案的基础之上,所做的任何修改、等同替换、改进等,均应包括在本申请的保护范围之内。
本领域内的技术人员应明白,本申请实施例可提供为方法、系统、或计算机程序产品。因此,本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在 内。

Claims (24)

  1. 一种切换方法,所述方法包括:
    终端进行切换,所述终端的切换时间包括以下至少一项:
    主小区PCell切换时间与主辅小区PSCell添加时间之和;PCell切换时间和PSCell添加时间二者中的最大值;
    PCell切换时间和/或PSCell添加时间;
    PCell小区搜索的时间与PSCell小区搜索的时间之和;
    PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
  2. 根据权利要求1所述的方法,其中,
    在满足第一条件的情况下,所述终端的切换时间包括以下一项或多项:PCell切换时间与PSCell添加时间之和;PCell小区搜索的时间和PSCell小区搜索的时间之和;PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和;
    其中,所述第一条件为:所述终端被配置了目标未知PSCell的基于同步信号块的测量时间配置SMTC。
  3. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述终端获取第一信息,
    其中,所述第一信息包括以下一项或多项:
    第一指示信息,所述第一指示信息指示所述终端在向PCell发送物理随机接入信道PRACH前导码preamble之后进行PSCell添加;
    第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的随机接入响应RAR之后进行PSCell添加;
    第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的消息4 MSG4之后进行PSCell添加;
    第四指示信息,所述第四指示信息指示所述终端在向PCell发送消息AMSGA之后进行PSCell添加;
    第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的消息B MSGB之后进行PSCell添加。
  4. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述终端获取第二信息,所述第二信息包括以下一项或多项:
    第六指示信息,所述第六指示信息指示所述终端的切换时间包括PCell切换时间与PSCell添加时间之和;
    第七指示信息,所述第七指示信息指示所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
    第八指示信息,所述第八指示信息指示所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
    第九指示信息,所述第九指示信息指示所述终端的切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
    第十指示信息,所述第十指示信息指示所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
  5. 根据权利要求3所述的方法,其中,所述终端的切换时间的长度为第一时间长度;
    在所述第一信息中包括所述第一指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的无线资源控制RRC消息到所述终端向PCell发送Preamble的时间长度与所述终端进行PSCell添加的时间长度之和;
    或者,
    在所述第一信息中包括所述第二指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送RAR的时间长度与所述终端进行PSCell添加的时间长度之和;
    或者,
    在所述第一信息中包括所述第三指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送的MSG4的时间长度与所述终端进行PSCell添加的时间长度之和;
    或者,
    在所述第一信息中包括所述第四指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送MSGA的时 间长度与所述终端进行PSCell添加的时间长度之和;
    或者,
    在所述第一信息中包括所述第五指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收到PCell发送的MSGB的时间长度与所述终端进行PSCell添加的时间长度之和。
  6. 根据权利要求5所述的方法,其中,所述终端进行PSCell添加的时间长度,包括:
    从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送Preamble的时间长度;
    或者,
    从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送MSGA的时间长度;
    或者,
    从所述终端接收到PCell发送的RAR到所述终端向PSCell发送Preamble的时间长度;
    或者,
    从所述终端接收到PCell发送的RAR到所述终端向PSCell发送MSGA的时间长度;
    或者,
    从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送Preamble的时间长度;
    或者,
    从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送MSGA的时间长度;
    或者,
    从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送Preamble的时间长度;
    或者,
    从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送MSGA 的时间长度。
  7. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述终端获取第一门限,其中所述第一门限与信道质量相关;
    当所述信道质量高于和/或等于所述第一门限的第一取值时,确定在向PCell发送消息1 MSG1之后,进行PSCell添加;
    或者,
    当所述信道质量高于和/或等于所述第一门限的第二取值时,确定在接收PCell发送的消息2 MSG2之后,进行PSCell添加;
    或者,
    当所述信道质量高于和/或等于所述第一门限的第三取值时,确定在接收PCell发送的MSG4之后,进行PSCell添加;
    或者,
    当所述信道质量低于和/或等于所述第一门限的第一取值,且所述信道质量高于和/或等于所述第一门限的第二取值时,确定在接收PCell发送的MSG2之后,进行PSCell添加;
    或者,
    当所述信道质量低于和/或等于所述第一门限的第二取值,且所述信道质量高于和/或等于所述第一门限的第三取值时,在接收PCell发送的MSG4之后,进行PSCell添加;
    或者,
    当所述信道质量高于和/或等于所述第一门限的第四取值时,确定在向PCell发送MSGA之后,进行PSCell添加;
    或者,
    当所述信道质量高于和/或等于所述第一门限的第五取值时,确定在接收PCell发送的MSGB之后,进行PSCell添加;
    或者,
    当所述信道质量低于和/或等于第一门限的第四取值,且所述信道质量高于和/或等于所述第一门限的第五取值时,确定在接收PCell发送的MSGB之后,进行PSCell添加。
  8. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述终端获取第二门限,所述第二门限与信道质量有关;
    当所述信道质量高于和/或等于所述第二门限的第一取值时,所述终端的切换时间包括:PCell切换时间与PSCell添加时间之和;
    当所述信道质量高于和/或等于所述第二门限的第二取值时,所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
    当所述信道质量高于和/或等于所述第二门限的第三取值时,所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
    当所述信道质量高于和/或等于所述第二门限的第四取值时,所述终端的切换时间包括PCell小区搜索的时间与PScell小区搜索的时间之和;
    当所述信道质量高于和/或等于所述第二门限的第五取值时,所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
  9. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述终端向网络侧设备发送第三信息;
    其中,所述第三信息包括以下一项或多项:
    所述终端是否支持基于并行处理的方式进行PCell切换和PSCell添加;
    所述终端是否支持基于串行处理的方式进行PCell切换和PSCell添加;
    所述终端是否支持切换时间包括PCell切换时间与PSCell添加时间之和;
    所述终端是否支持切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
    所述终端是否支持切换时间包括PCell切换时间和/或PSCell添加时间;
    所述终端是否支持切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
    所述终端是否支持切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间与PScell同步的时间之和;
    第十一指示信息,所述第十一指示信息指示在第二操作之后进行PSCell添加;
    第十二指示信息,所述第十二指示信息指示所述终端支持第三操作的并行 处理;
    第十三指示信息,所述第十三指示信息指示所述终端支持第四操作的串行处理。
  10. 根据权利要求9所述的方法,其中,所述第二操作包括以下之一:
    向PCell发送MSG1;
    接收到PCell发送的MSG2;
    向PCell发送消息3MSG3;
    接收到PCell发送的MSG4;
    向PSCell发送MSGA;
    接收到PCell发送的MSGB。
  11. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述终端从网络侧设备接收第四信息;
    所述第四信息包括以下一项或多项:
    第十四指示信息,所述第十四指示信息指示所述终端是否通过并行处理的方式进行携带PSCell添加的切换;
    第十五指示信息,所述第十五指示信息指示所述终端是否通过串行处理的方式进行携带PSCell添加的切换;
    第十六指示信息,所述第十六指示信息表示第五操作进行并行处理;
    第十七指示信息,所述第十七指示信息表示第六操作进行串行处理。
  12. 根据权利要求9或11所述的方法,其中,所述第三操作或第四操作或第五操作或第六操作,包括以下一项或多项:
    小区检测;
    时域同步;
    频域同步;
    自动增益控制;
    随机接入。
  13. 一种切换方法,包括:
    网络侧设备发送第一信息;
    其中,所述第一信息包括以下一项或多项:
    第一指示信息,所述第一指示信息指示终端在向PCell发送PRACHpreamble之后进行PSCell添加;
    第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的RAR之后进行PSCell添加;
    第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的MSG4之后进行PSCell添加;
    第四指示信息,所述第四指示信息指示所述终端在向PCell发送MSGA之后进行PSCell添加;
    第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的MSGB之后进行PSCell添加。
  14. 根据权利要求13所述的方法,其中,所述方法还包括:
    所述网络侧设备发送第二信息,所述第二信息包括以下一项或多项:
    第六指示信息,所述第六指示信息指示所述终端的切换时间包括PCell切换时间与PSCell添加时间之和;
    第七指示信息,所述第七指示信息指示所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
    第八指示信息,所述第八指示信息指示所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
    第九指示信息,所述第九指示信息指示所述终端的切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
    第十指示信息,所述第十指示信息指示所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
  15. 根据权利要求13所述的方法,其中,所述终端的切换时间的长度为第一时间长度;
    在所述第一信息中包括所述第一指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送Preamble的时间长度与所述终端进行PSCell添加的时间长度之和;
    或者,
    在所述第一信息中包括所述第二指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送RAR的时间长度与所述终端进行PSCell添加的时间长度之和;
    或者,
    在所述第一信息中包括所述第三指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收PCell发送的MSG4的时间长度与所述终端进行PSCell添加的时间长度之和;
    或者,
    在所述第一信息中包括所述第四指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端向PCell发送MSGA的时间长度与所述终端进行PSCell添加的时间长度之和;
    或者,
    在所述第一信息中包括所述第五指示信息的情况下,所述第一时间长度为:从所述终端接收到携带切换的RRC消息到所述终端接收到PCell发送的MSGB的时间长度与所述终端进行PSCell添加的时间长度之和。
  16. 根据权利要求15所述的方法,其中,所述终端进行PSCell添加的时间长度,包括:
    从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送Pramble的时间长度;
    或者,
    从所述终端接收到PCell发送的MSGB到所述终端向PSCell发送MSGA的时间长度;
    或者,
    从所述终端接收到PCell发送的RAR到所述终端向PSCell发送Pramble的时间长度;
    或者,
    从所述终端接收到PCell发送的RAR到所述终端向PSCell发送MSGA的时间长度;
    或者,
    从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送Pramble的时间长度;
    或者,
    从所述终端接收到PCell发送的MSG4到所述终端向PSCell发送MSGA的时间长度;
    或者,
    从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送Pramble的时间长度;
    或者,
    从所述终端接收到PCell发送的MSGA到所述终端向PSCell发送MSGA的时间长度。
  17. 根据权利要求13所述的方法,其中,所述方法还包括:
    所述网络侧设备发送第二门限,所述第二门限与信道质量有关;
    当所述信道质量高于和/或等于所述第二门限的第一取值时,所述终端的切换时间包括:PCell切换时间与PSCell添加时间之和;
    当所述信道质量高于和/或等于所述第二门限的第二取值时,所述终端的切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
    当所述信道质量高于和/或等于所述第二门限的第三取值时,所述终端的切换时间包括PCell切换时间和/或PSCell添加时间;
    当所述信道质量高于和/或等于所述第二门限的第四取值时,所述终端的切换时间包括PCell小区搜索的时间与PScell小区搜索的时间之和;
    当所述信道质量高于和/或等于所述第二门限的第五取值时,所述终端的切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
  18. 根据权利要求13所述的方法,其中,所述方法还包括:
    所述网络侧设备接收第三信息;
    其中,所述第三信息包括以下一项或多项:
    所述终端是否支持基于并行处理的方式进行PCell切换和PSCell添加;
    所述终端是否支持基于串行处理的方式进行PCell切换和PSCell添加;
    所述终端是否支持切换时间包括PCell切换时间与PSCell添加时间之和;
    所述终端是否支持切换时间包括PCell切换时间和PSCell添加时间二者中的最大值;
    所述终端是否支持切换时间包括PCell切换时间和/或PSCell添加时间;
    所述终端是否支持切换时间包括PCell小区搜索的时间与PSCell小区搜索的时间之和;
    所述终端是否支持切换时间包括PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间与PSCell同步的时间之和;
    第十一指示信息,所述第十一指示信息指示在第二操作之后进行PSCell添加;
    第十二指示信息,所述第十二指示信息指示所述终端支持第三操作的并行处理;
    第十三指示信息,所述第十三指示信息指示所述终端支持第四操作的串行处理。
  19. 根据权利要求18所述的方法,其中,所述第二操作包括以下之一:
    向PCell发送MSG1;
    接收到PCell发送的MSG2;
    向PCell发送MSG3;
    接收到PCell发送的MSG4;
    向PSCell发送MSGA;
    接收到PCell发送的MSGB。
  20. 根据权利要求15所述的方法,其中,所述方法还包括:
    所述网络侧设备发送第四信息;
    其中,所述第四信息包括以下一项或多项:
    第十四指示信息,所述第十四指示信息指示所述终端是否通过并行处理的方式进行PSCell添加;
    第十五指示信息,所述第十五指示信息指示所述终端是否通过串行处理的方式进行PSCell添加;
    第十六指示信息,所述第十六指示信息表示第五操作进行并行处理;
    第十七指示信息,所述第十七指示信息表示第六操作进行串行处理。
  21. 一种切换装置,应用于终端,包括:
    切换模块,用于进行切换,所述终端的切换时间包括以下至少一项:
    PCell切换时间与PSCell添加时间之和;
    PCell切换时间和PSCell添加时间二者中的最大值;
    PCell切换时间和/或PSCell添加时间;
    PCell小区搜索的时间与PSCell小区搜索的时间之和;
    PCell小区搜索的时间、PCell同步的时间、PSCell小区搜索的时间和PSCell同步的时间之和。
  22. 一种切换装置,应用于网络侧设备,包括:
    第二发送模块,用于发送第一信息;
    其中,所述第一信息包括以下一项或多项:
    第一指示信息,所述第一指示信息指示终端在向PCell发送PRACHpreamble之后进行PSCell添加;
    第二指示信息,所述第二指示信息指示所述终端在接收到PCell发送的RAR之后进行PSCell添加;
    第三指示信息,所述第三指示信息指示所述终端在接收到PCell发送的MSG4之后进行PSCell添加;
    第四指示信息,所述第四指示信息指示所述终端在向PCell发送MSGA之后进行PSCell添加;
    第五指示信息,所述第五指示信息指示所述终端在接收到PCell发送的MSGB之后进行PSCell添加。
  23. 一种通信设备,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求1-20中任一项所述的方法的步骤。
  24. 一种可读存储介质,所述可读存储介质上存储有程序,所述程序被处理器执行时实现包括如权利要求1至20中任一项所述的方法的步骤。
PCT/CN2022/126601 2021-10-21 2022-10-21 切换方法、装置、设备及可读存储介质 WO2023066360A1 (zh)

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