WO2024067282A1 - Procédé et appareil de traitement de transfert de bande - Google Patents

Procédé et appareil de traitement de transfert de bande Download PDF

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Publication number
WO2024067282A1
WO2024067282A1 PCT/CN2023/119941 CN2023119941W WO2024067282A1 WO 2024067282 A1 WO2024067282 A1 WO 2024067282A1 CN 2023119941 W CN2023119941 W CN 2023119941W WO 2024067282 A1 WO2024067282 A1 WO 2024067282A1
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WO
WIPO (PCT)
Prior art keywords
band
uplink transmission
time
terminal
switching
Prior art date
Application number
PCT/CN2023/119941
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English (en)
Chinese (zh)
Inventor
王俊伟
Original Assignee
大唐移动通信设备有限公司
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Filing date
Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Publication of WO2024067282A1 publication Critical patent/WO2024067282A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a band switching processing method and device.
  • CA Carrier Aggregation
  • the purpose of the present disclosure is to provide a band switching processing method and device, which solves the problem that the uplink transmission scheduling timing is affected because the number of bands involved in the switching is greater than the number of memories.
  • An embodiment of the present disclosure provides a band switching processing method, including:
  • the terminal determines, when the number of bands is greater than the number of band configuration information that can be stored in the terminal, preparation time information for performing band switching;
  • the terminal determines, according to the preparation time information, a switching condition for the band switching, and/or determines an uplink scheduling restriction condition after the band switching is completed;
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • determining the preparation time information for band switching includes:
  • determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal is performed by at least one of the following:
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the third band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band, it is determined that the number of bands is greater than the number of band configuration information that the terminal can store;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the method further includes:
  • the first capability information includes the amount of band configuration information that the terminal can store;
  • Second capability information is sent to the network side device, where the second capability information indicates a condition that preparation time is required to perform band switching.
  • the method further includes: determining to execute the second uplink transmission in one of the following ways: Input switching band pair;
  • a switching band pair for performing the second uplink transmission is determined.
  • the indication information or the predefined rule is used to indicate one of the following:
  • the switching band pair of the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • the predefined rule indicates the band in the band of the first uplink transmission that is allowed to be replaced in one of the following ways:
  • each band corresponding to the first uplink transmission is allowed to be replaced;
  • the band allowed to be replaced is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • determining the band allowed to be replaced according to the end time and/or start time of the band corresponding to the first uplink transmission includes:
  • the predefined rule indicates the switching band pair of the second uplink transmission in one of the following ways:
  • the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is the same as the number of bands corresponding to the first uplink transmission, determining that the band corresponding to the second uplink transmission is the switching band pair;
  • the switching band pair is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • determining the switching band pair according to an end time and/or a start time of a band corresponding to the first uplink transmission includes:
  • the band with the earliest start time or the earliest end time and the band corresponding to the second uplink transmission are determined as the switching band pair.
  • determining the duration of the preparation time and the start time of the preparation time includes:
  • the duration of the preparation time is a predetermined multiple of a reference SCS, where the reference SCS is a maximum SCS value for participating in carrier switching configured by a network-side device;
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the determining the duration of the preparation time and the start time of the preparation time includes one of the following:
  • the earliest starting time for determining the preparation time is: the end time of sending the last symbol on the band where the first uplink transmission is replaced.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the uplink scheduling restriction condition includes:
  • the uplink transmission time when the terminal performs the second uplink transmission is the first time or later than the first time time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • An embodiment of the present disclosure provides a band switching processing method, including:
  • the network side device determines the preparation time information for the terminal to switch the band when the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the network side device determines, according to the preparation time information, a switching condition for the band switching, and/or determines an uplink scheduling restriction condition after the band switching is completed;
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • determining the preparation time information for band switching includes:
  • the method further includes:
  • the terminal receiving first capability information sent by the terminal, where the first capability information includes the amount of band configuration information that the terminal can store;
  • Second capability information sent by the terminal is received, where the second capability information indicates a condition that a preparation time is required to perform band switching.
  • determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal is performed by at least one of the following:
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the third band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band, it is determined that the number of bands is greater than the number of band configuration information that the terminal can store;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the method further includes:
  • Receive first capability information sent by the terminal includes the amount of band configuration information that the terminal can store.
  • the method further includes:
  • the indication information is used to indicate one of the following:
  • the switching band pair of the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • determining the duration of the preparation time and the start time of the preparation time includes:
  • the duration of the preparation time is a predetermined multiple of a reference SCS, where the reference SCS is a maximum SCS value for participating in carrier switching configured by a network-side device;
  • the determining the duration of the preparation time and the start time of the preparation time includes one of the following:
  • the earliest starting time for determining the preparation time is: the end time of sending the last symbol on the band where the first uplink transmission is replaced.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the uplink scheduling restriction condition includes:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • the embodiment of the present disclosure provides a band switching processing device, which is applied to a terminal, including: a memory, a transceiver, and a processor:
  • a memory for storing a computer program; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the processor is configured to read the computer program in the memory and perform at least one of the following operations:
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the third band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band, it is determined that the number of bands is greater than the number of band configuration information that the terminal can store;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the transceiver is used for:
  • the first capability information includes the amount of band configuration information that the terminal can store;
  • Second capability information is sent to the network side device, where the second capability information indicates a condition that preparation time is required to perform band switching.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • a switching band pair for performing the second uplink transmission is determined.
  • the indication information or the predefined rule is used to indicate one of the following:
  • the switching band pair of the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • the predefined rule indicates the band in the band of the first uplink transmission that is allowed to be replaced in one of the following ways:
  • each band corresponding to the first uplink transmission is allowed to be replaced;
  • the band allowed to be replaced is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the predefined rule indicates the switching band pair of the second uplink transmission in one of the following ways:
  • the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is the same as the number of bands corresponding to the first uplink transmission, determining that the band corresponding to the second uplink transmission is the switching band pair;
  • the switching band pair is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the band with the earliest start time or the earliest end time and the band corresponding to the second uplink transmission are determined as the switching band pair.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the duration of the preparation time is a predetermined multiple of a reference SCS, where the reference SCS is a maximum SCS value for participating in carrier switching configured by a network-side device;
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the processor is configured to read the computer program in the memory and perform one of the following operations:
  • the earliest starting time for determining the preparation time is: the end time of sending the last symbol on the band where the first uplink transmission is replaced.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the uplink scheduling restriction condition includes:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • the embodiment of the present disclosure provides a band switching processing device, which is applied to a network side device, including: a memory, a transceiver, and a processor:
  • a memory for storing a computer program; a transceiver for receiving and sending data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the transceiver is used for:
  • the terminal receiving first capability information sent by the terminal, where the first capability information includes the amount of band configuration information that the terminal can store;
  • Second capability information sent by the terminal is received, where the second capability information indicates a condition that a preparation time is required to perform band switching.
  • determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal is performed by at least one of the following:
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the third band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band, it is determined that the number of bands is greater than the number of band configuration information that the terminal can store;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the transceiver is used for:
  • the indication information is used to indicate one of the following:
  • the switching band pair of the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the duration of the preparation time is a predetermined multiple of a reference SCS, where the reference SCS is a maximum SCS value for participating in carrier switching configured by a network-side device;
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the processor is configured to read the computer program in the memory and perform one of the following operations:
  • the earliest starting time for determining the preparation time is: the end time of sending the last symbol on the band where the first uplink transmission is replaced.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the uplink scheduling restriction condition includes:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • An embodiment of the present disclosure provides a band switching processing device, applied to a terminal, including:
  • a first determining unit configured to determine preparation time information for band switching when the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • a second determining unit is used to determine the switching of the band switching according to the preparation time information. Condition, and/or, determining an uplink scheduling restriction condition after the band switching is completed;
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the embodiment of the present disclosure provides a band switching processing device, which is applied to a network side device, including:
  • a third determining unit configured to determine preparation time information for band switching when the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • a fourth determining unit configured to determine, according to the preparation time information, a switching condition for the band switching, and/or determine an uplink scheduling restriction condition after the band switching is completed;
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • An embodiment of the present disclosure provides a processor-readable storage medium having a computer program stored thereon.
  • the computer program is executed by a processor, the steps of the above-mentioned band switching processing method are implemented, or the steps of the above-mentioned band switching processing method are implemented.
  • a terminal determines band switching preparation time information when the number of bands is greater than the number of band configuration information that the terminal can store, and determines a switching condition and/or an uplink scheduling restriction condition for the band switching based on the preparation time information, which is conducive to more efficient execution of multi-band uplink switching and improves switching efficiency.
  • FIG1 is a schematic diagram showing a flow chart of a band switching processing method according to an embodiment of the present disclosure
  • FIG2 is a schematic diagram showing a band switching process according to an embodiment of the present disclosure
  • FIG3 shows a second schematic diagram of a band switching process according to an embodiment of the present disclosure
  • FIG4 is a third schematic diagram showing a band switching process according to an embodiment of the present disclosure.
  • FIG5 is a fourth schematic diagram showing a band switching process according to an embodiment of the present disclosure.
  • FIG6 shows a fifth schematic diagram of a band switching process according to an embodiment of the present disclosure
  • FIG7 shows a sixth schematic diagram of a band switching process according to an embodiment of the present disclosure
  • FIG8 is a second flow chart of the band switching processing method according to an embodiment of the present disclosure.
  • FIG9 is a schematic diagram showing one of the structures of the band switching processing device according to an embodiment of the present disclosure.
  • FIG10 is a second structural diagram of the band switching processing device according to an embodiment of the present disclosure.
  • FIG11 is a third structural diagram of the band switching processing device according to an embodiment of the present disclosure.
  • FIG. 12 shows a fourth structural schematic diagram of the band switching processing device according to an embodiment of the present disclosure.
  • sequence numbers of the following processes do not imply the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.
  • the term "and/or” describes the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" generally indicates that the associated objects before and after are in an "or” relationship.
  • plurality in the embodiments of the present disclosure refers to two or more than two, and other quantifiers are similar thereto.
  • the embodiment of the present disclosure provides a band switching processing method and device to solve the problem that the number of bands involved in the switching is greater than the number of memories, which affects the uplink transmission scheduling timing.
  • the method and the device are based on the same application concept. The principles are similar, so the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.
  • an embodiment of the present disclosure provides a band switching processing method, which is applied to a terminal and specifically includes the following steps:
  • Step 101 When the number of bands is greater than the number of band configuration information that can be stored in the terminal, the terminal determines preparation time information for band switching;
  • the band configuration information may be stored in a radio frequency (RF) chip of the terminal, for example, in a memory of the RF chip.
  • the number of bands refers to the number of switching bands supported by the terminal.
  • the terminal supports uplink carrier switching between 3 or 4 bands.
  • the number of bands is greater than the number of band configuration information that the terminal can store, for example, the bands supported for switching by the terminal are band-1, band-2, and band-3, and the terminal only supports the storage of 2 band configuration information; or, the bands supported for switching by the terminal are band-1, band-2, band-3, and band-4, and the terminal only supports the storage of 2 or 3 band configuration information.
  • the preparation time information refers to the preparation time required for the terminal to switch bands when the number of bands is greater than the number of band configuration information that the terminal can store. Taking the switch between two bands as an example, the structural model and switching process of the terminal are shown in Figure 2. The current execution is the switch between band-1 and band-2.
  • the base station schedules data transmission on band-3.
  • the band configuration information of band-3 needs to be sent to RF (M1 or M2 memory), and then written into the RF hardware.
  • the terminal After the terminal receives the scheduling signaling on band-3, the terminal needs to perform an additional new action: that is, the band configuration information of band-3 is sent from the baseband chip to the radio frequency chip, that is, the band-3 configuration parameters are loaded.
  • the time information for executing this action is called the preparation time information.
  • Step 102 The terminal determines a switching condition for the band switching according to the preparation time information, and/or determines an uplink scheduling restriction condition after the band switching is completed;
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the terminal does not need to report, and the network-side device and the terminal are assumed to have 2 memories by default.
  • the terminal After determining the preparation time information, the terminal determines a switching condition and/or an uplink scheduling restriction condition when the number of bands is greater than the number of band configuration information that can be stored by the terminal, for example, in a switching of 4 bands, for a case where the terminal only supports storing 2 or 3 band configuration information, Determine the restriction conditions of uplink scheduling after band switching; in the switching of 3 bands, for the case where the terminal only supports storing 2 band configuration information, determine the restriction conditions of uplink scheduling after band switching.
  • a terminal determines band switching preparation time information when the number of bands is greater than the number of band configuration information that the terminal can store, and determines a switching condition and/or an uplink scheduling restriction condition for the band switching based on the preparation time information, which is conducive to more efficient execution of multi-band uplink switching and improves switching efficiency.
  • band switching also includes the meaning of “carrier switching in a band”.
  • band parameter configuration also includes “carrier parameter configuration in a band”.
  • determining the preparation time information for band switching includes:
  • the first uplink transmission is the original uplink transmission
  • the second uplink transmission may be the next uplink transmission of the first uplink transmission scheduled by the base station, that is, the first uplink transmission is the uplink transmission performed by the band for which the terminal has stored the band configuration information, and the second uplink transmission has the band configuration information of at least one band not stored.
  • the bands currently performing the transmission switching are band-1 and band-2, that is, the first uplink transmission is performed on the band-1 and band-2; the next step is that the base station schedules data transmission on band-3, and the second uplink transmission is performed on band-3; if the terminal can only store 2 band configuration information, it is necessary to delete the stored band configuration information of band-1 or the stored band configuration information of band-2 and replace it with the band configuration information of band-3. Assuming that the band configuration information of band-2 is deleted, the terminal stores the band configuration information of band-1 and the band configuration information of band-3, and band-1 and band-3 can be used as the switching band pair of the second uplink transmission.
  • the switching scenario needs to The terminal further determines the duration (a_prepare_time) and start time (start) of the preparation time required for the switching scene.
  • the sum of the number of bands corresponding to the first uplink transmission and the number of bands corresponding to the second uplink transmission does not include the number of repeated bands.
  • the original bands corresponding to the first uplink transmission include: band-1 and band-2, that is, the sending switch of the first uplink transmission is performed between band-1 and band-2;
  • the target bands corresponding to the second uplink transmission are band-1 and band-3, that is, after replacing the band configuration information stored in band-2, the sending switch of the second uplink transmission is performed between band-1 and band-3, then the sum of the number of bands corresponding to the first uplink transmission and the number of bands corresponding to the second uplink transmission is recorded as 3 (only 1 of the two repeated band-1s is counted).
  • the switching scenarios requiring preparation time may include:
  • Scenario 1 For example, the first band and the second band are currently performing transmission switching (i.e., the first uplink transmission), and the next uplink transmission (i.e., the second uplink transmission) is the third band; the terminal can only store 2 band configuration information;
  • Scenario 2 For example, the first and second bands are currently being switched, and the next uplink transmission is the third and fourth bands.
  • the terminal can only store 2 or 3 band configuration information.
  • the terminal identifies the switching scenario that requires the preparation time.
  • the RF chip of the terminal can store two band configuration information.
  • the RF chip includes two memories M1 and M2 for storing RF configuration parameters. M1 and M2 can each store the parameter configuration of a band, so the switching scenario that requires the preparation time depends on the number of band configuration information that the terminal can store in the RF chip.
  • determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal is performed by at least one of the following:
  • Scenario 1-1 If the bands corresponding to the first uplink transmission are the first band and the second band, the bands corresponding to the second uplink transmission are the third band, and the number of band configuration information that the terminal can store is two, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the current transmission switching i.e., the first uplink transmission
  • the next uplink transmission i.e., the second uplink transmission
  • the number of bands is 3, and the terminal can store 2 band configuration information.
  • the number of bands is greater than the number of bands that the terminal can store.
  • the memory M1 and the memory M2 store the first band and the second band configuration information respectively.
  • the first band, the second band, and the third band are respectively recorded as band-1, band-2, and band-3.
  • the band switching in this scenario is shown in FIG3 .
  • Scenario 1-2 If the bands corresponding to the first uplink transmission are the first band and the second band, the bands corresponding to the second uplink transmission are the third band and the fourth band, and the number of band configuration information that the terminal can store is two, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the first band and the second band are currently performing transmission switching (i.e., the first uplink transmission), and the next uplink transmission (i.e., the second uplink transmission) is the third band and the fourth band, then the number of bands is 4, and the number of band configuration information that the terminal can store is 2, then the number of bands is greater than the number of band configuration information stored by the terminal.
  • memories M1 and M2 store the RF configuration information of the first band and the second band, respectively.
  • M1 and M2 need to be used to load the RF configuration information of the third band and the fourth band, so the preparation time is required.
  • the first band, the second band, the third band and the fourth band are respectively recorded as band-1, band-2, band-3 and band-4.
  • the band switching in this scenario is shown in FIG4 .
  • Scenario 2-1 If the bands corresponding to the first uplink transmission are the first band and the second band, the band corresponding to the second uplink transmission is the fourth band, and the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band and the third band, then it is determined that the number of bands is greater than the number of band configuration information stored by the terminal.
  • the terminal's RF chip has three memories, M1, M2, and M3, assuming that the current transmission switch is the first band and the second band, and the three memories M1, M2, and M3 store the configuration parameters of the first band, the second band, and the third band respectively, the next uplink transmission only includes the fourth band, then the number of bands is 4 (because the current terminal has stored the band configuration information of three bands), then the number of bands is greater than the number of band configuration information stored in the terminal.
  • M1, M2, and M3 store the configuration information of the first band, the second band, and the third band respectively.
  • Band configuration information When the next uplink transmission switches to the fourth band, it is necessary to use any one of the memories M1, M2 and M3 to load the band configuration information of the fourth band, thus requiring the preparation time.
  • Scenario 2-2 If the bands corresponding to the first uplink transmission are the first band and the second band, the bands corresponding to the second uplink transmission are the third band and the fourth band, and the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the current transmission switching is performed for the first band and the second band
  • the band configuration parameters stored in the three memories M1, M2, and M3 are the configuration parameters of the first band, the second band, and the third band, respectively
  • the next uplink transmission includes the third band and the fourth band
  • the number of bands is 4, so the number of bands is greater than the number of band configuration information stored in the terminal, and any one of the memories M1 and M2 needs to be used to load the band configuration information of the fourth band, so the preparation time is required.
  • scene 1-1, scene 1-2, scene 2-1 and scene 2-2 are switching scenes which require preparation time.
  • the terminal supports transmission switching of 4 bands at most, and the RF chip of the terminal has four memories, namely, M1, M2, M3 and M4, the preparation time is not required.
  • the method further includes: sending first capability information to a network side device; the first capability information includes the amount of band configuration information that the terminal can store.
  • the switching scenarios requiring the preparation time are different, and the terminal may report the relevant requirements to the network side device so that the network side device and the terminal can have a unified understanding of the switching scenarios.
  • the terminal reports the number of memories to the network side device.
  • the terminal reports the memory capacity parameter: numOfMemory ⁇ N2, N3, N4 ⁇ .
  • N2 indicates that there are 2 memories for saving band parameter configurations
  • N3 indicates that there are 3 memories
  • N4 indicates that there are 4 memories.
  • the network side device and the terminal determine the switching scenario that requires the preparation time based on the number of reported memories. For example, when N2 is reported, it is the above-mentioned scene 1-1 and scene 1-2; when N3 is reported, it is the above-mentioned scene 2-1 and scene 2-2.
  • the terminal does not need to report, and the network-side device and the terminal are assumed to have 2 memories by default.
  • the method further includes: sending second capability information to the network side device, where the second capability information indicates a condition requiring preparation time.
  • the condition requiring preparation time may be: the number of bands is greater than the number of band configuration information that can be stored in the terminal, and the method for determining the condition requiring preparation time is the method for determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal.
  • the switching scenario in which the number of bands is greater than the number of band configuration information that can be stored in the terminal may include one or more of the above-mentioned scenarios 1-1, 1-2, 2-1, and 2-2.
  • the terminal reports the conditions requiring preparation time to the network side device, that is, reports the switching scenarios requiring the preparation time to the network side device, so that the network side device and the terminal have the same understanding of the switching process.
  • the terminal indicates that the switching scenario that requires the preparation time is: numOfAdditionalPreTime ⁇ Case1-1&1-2, Case1-2, case-2-1 ⁇ .
  • Case1-1&1-2 indicates that the band switching of the above-mentioned scenario 1-1 and scenario 1-2 requires the preparation time. If Case2-1 is reported, it means that the above-mentioned scenario 2-1 requires the preparation time.
  • the terminal may not report, that is, the network-side device and the terminal default to the above-mentioned scenario 1-1 and scenario 1-2 requiring the said preparation time.
  • first band, the second band, the third band, and the fourth band in the embodiment of the present disclosure do not refer to the band numbers, but are only used to represent different bands, and can also be expressed as: the first carrier, the second carrier, etc.
  • the method further includes: determining a switching band pair for performing the second uplink transmission in one of the following ways;
  • the switching carrier pair corresponding to the second uplink transmission is a new band-pair obtained by replacing the switching carrier pair of the first uplink transmission.
  • the uplink transmission switching if there is no band configuration corresponding to the new uplink transmission (i.e., the second uplink transmission) in the band configuration information stored in the terminal, When the configuration information of the band is changed, the radio frequency configuration parameters of the band need to be loaded and the radio frequency configuration parameters of the currently saved band need to be deleted. After the corresponding band configuration information is replaced, a new switching band pair is formed in the terminal. In these new switching band pairs, the band switching performed after this switching does not require the preparation time.
  • the terminal may determine a new switching band pair according to an instruction of a network-side device, or may determine a new switching band pair based on a predefined rule.
  • the indication information or the predefined rule is used to indicate one of the following:
  • the network side device may indicate, through the indication information, band parameters that are not allowed to be deleted or replaced in the bands of the first uplink transmission, and the corresponding bands are not allowed to be deleted or replaced.
  • the terminal may determine which bands are not allowed to be deleted or replaced according to a predefined rule.
  • the network side device can indicate the band parameters to be deleted or replaced in the bands of the first uplink transmission through the indication information, and the corresponding bands are deleted or replaced.
  • the terminal can determine which bands can be deleted or replaced according to a predefined rule.
  • a switching band pair for the second uplink transmission wherein the switching band pair for the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • the terminal may determine the switching band pair for the second uplink transmission based on indication information of a network-side device or a predefined rule, and the switching band pair for the second uplink transmission may be composed of a band of the first uplink transmission and a band of the second uplink transmission, or may be composed of multiple bands of the second uplink transmission.
  • the band configuration information to be deleted or replaced (referred to as the replaced band) is determined according to the indication information configured by the base station.
  • uplink switching can be performed directly between the bands of the plurality of band configuration information recorded in the memory without the aforementioned preparation time.
  • M1 stores the configuration parameters of band-1
  • M2 stores the configuration parameters of band-2.
  • Switching between band-1 and band-2 does not require the preparation time, and band-1 and band-2 are called a switching band pair: band-pair (band-1, band-2).
  • band-pair band-3, band-2).
  • the following describes, by way of example, how to determine the switching band pair for the second uplink transmission based on the indication information sent by the network side device.
  • the base station configures a band that cannot be replaced (assuming that the UE can store two band configuration information, for example, has two memories).
  • the base station configures a non-replaceable band through high-layer signaling or physical layer signaling, that is, the configuration parameters of the band always occupy one of the memories (the terminal cannot modify it according to the uplink scheduling signaling), and the parameters of the other memory can be replaced by other band configuration parameters, that is, they can be modified according to the uplink scheduling signaling and form a new switching band pair.
  • the base station configures a primary band (i.e., a band that cannot be replaced) through the following signaling:
  • Table 1 Configuration information based on non-replaceable bands
  • the configuration information of band-1 is not allowed to be replaced.
  • the stored configuration information of band-2 is replaced with the configuration information of band-3, and the switching band pair of the second uplink transmission is band-1 and band-3;
  • the stored configuration information of band-3 is replaced with the configuration information of band-2, and the switching band pair of the second uplink transmission is band-1 and band-2;
  • the stored configuration information of band-4 is replaced with the configuration information of band-3, and the switching band pair of the second uplink transmission is band-1 and band-3;
  • the base station configures two bands that cannot be replaced (assuming that the UE can store three band configuration information, for example, has three memories).
  • the base station configures two irreplaceable bands through high-layer signaling or physical-layer signaling, that is, the configuration parameters of the two bands always occupy two of the memories, and the parameters of the other memory can be replaced by other band parameters.
  • the base station configures the main band (i.e., the band that cannot be replaced) of two bands through the following signaling:
  • ENUMERATED is an enumeration type. Assuming that Master-band-carrier-1 is configured as B1 and Master-band-carrier-2 is configured as B2, it is considered that the configuration parameters corresponding to band-1 and band-2 are irreplaceable; then for the UE, when a switching scenario requiring the preparation time occurs, the terminal determines the band of the replaced RF parameters as shown in Table 2.
  • Table 2 Configuration information based on non-replaceable bands
  • the configuration information of band-1 and band-2 is not allowed to be replaced.
  • the switching band pair of the first uplink transmission is band-1 and band-2, and the second uplink transmission is sent on band-4, the stored configuration information of band-3 is replaced with the configuration information of band-4. Then, the switching band pair of the second uplink transmission is any combination of band-1, band-2, and band-4. Other switching scenarios are similar and will not be repeated here.
  • Method 2 The base station configures the replaced band.
  • the two bands for band switching are defined as a "switching band pair".
  • the base station configures which band in the current "switching band pair" has its RF configuration parameters replaced.
  • the base station configuration content includes the following three information:
  • Replaced band information refers to the band that needs to be refreshed/replaced when at least one of the bands in the next uplink transmission is not any of the "switching band pairs".
  • the terminal can store two band configuration information, as an example, the replaced bands configured by the base station are shown in Table 3.
  • the switching scenarios of row numbers 1-6 are the bands of the replaced configuration parameters indicated by the base station when the next uplink transmission is only in one band, that is, when there is only 1T (1 channel) transmission.
  • the current (first uplink transmission) switching band pair is band-1 and band-2
  • the memory stores the configuration information of band-1 and band-2 respectively.
  • the second uplink transmission is to be sent on band-3 or band-4, and the configuration information of band-1 configured by the base station is allowed to be replaced, then the configuration information of band-1 stored in the MI can be replaced with the configuration information of band-3 or band-4.
  • Line number 7 When the next uplink transmission is in 2 bands (i.e., supporting 1P+1P), and the bands are different from the current uplink transmission switching pair, the terminal replaces all configuration parameters of the uplink transmission switching pair by default.
  • the current (first uplink transmission) switching band pair is band-1 and band-2, and the memory stores the configuration information of band-1 and band-2 respectively.
  • the input is to be sent on band-3 and band-4, and the configuration information of band-1 and band-2 configured by the base station is allowed to be replaced. Then the configuration information of band-1 stored in MI and the configuration information of band-1 stored in M2 can be replaced with the configuration information of band-3 and band-4.
  • Line number 8 When the next uplink transmission is in 2 bands (i.e., supporting 1P+1P), and one band is the same as one of the bands in the switching band pair of the current uplink transmission, the terminal replaces the band parameters that are not sent in the uplink transmission switching pair by default.
  • the current (first uplink transmission) switching band pair is band-1 and band-2, and the memory stores the configuration information of band-1 and band-2 respectively.
  • the second uplink transmission is to be sent on band-2 and band-4, and has the same transmission band-2 as the current uplink transmission, then the configuration information of band-1 configured by the base station is allowed to be replaced, and the configuration information of band-1 stored in the MI can be replaced with the configuration information of band-4.
  • the terminal can store three band configuration information, as an example, the replaced bands configured by the base station are shown in Table 4.
  • Mode 3 The base station configures the switching band pair for the second uplink transmission, that is, the base station indicates which new switching band pairs are formed.
  • the base station configuration content includes the following three information:
  • New switching band pair Which band in the current uplink transmission switching pair forms a switching band pair with the band to be transmitted.
  • the terminal can store two band configuration information
  • the switching band pairs configured by the base station are shown in Table 5.
  • the switching scenarios of row numbers 1 to 12 are when the next uplink transmission is only in one band, that is, when there is only 1T (1 channel) transmission, the base station instructs the formation of a new switching band pair.
  • the current (first uplink transmission) switching band pair is band-1 and band-2.
  • the second uplink transmission is to be sent on band-3, and the base station indicates that the new switching band pair is band-1 and band-3, that is, the configuration information of band-2 that has been stored is replaced with the configuration information of band-3.
  • Line numbers 13 to 14 When the next uplink transmission is in two bands (ie, the 1P+1P state is supported), a new band switching pair is formed, which defaults to the two bands that will be used for uplink transmission.
  • the current (first uplink transmission) switching band pair is band-3 and band-4.
  • the second uplink transmission will be sent on band-2 and band-3, and the base station indicates that the new switching band pair is band-2 and band-3, that is, the stored configuration information of band-4 is replaced with the configuration information of band-3.
  • the terminal can store three band configuration information, as an example, the switching band pairs configured by the base station are shown in Table 6.
  • row number 1 indicates that when the current uplink transmission is a switching band pair of any two band combinations of band-1, band-2, and band-3, the new switching band pair is any two combinations of band-1, band-3, and band-4, which is equivalent to replacing the configuration parameters of band-2.
  • the following describes a method in which a terminal determines a switching band pair for a second uplink transmission based on a predefined rule through a specific embodiment.
  • the predefined rule indicates the band that is allowed to be replaced in the band of the first uplink transmission in one of the following ways:
  • Mode 1 If the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is the same as the number of bands corresponding to the first uplink transmission, then each band corresponding to the first uplink transmission is allowed to be replaced;
  • the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, which may mean that all bands of the second uplink transmission are different from the bands of the first uplink transmission, for example, the switching bands of the first uplink transmission are band-1 and band-2, and the switching bands of the second uplink transmission are band-3 and band-4. Then, the configuration information of the two bands (such as band-1 and band-2) currently performing band switching is replaced.
  • Method 2 If the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is less than the number of bands corresponding to the first uplink transmission, the band that is allowed to be replaced is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the band corresponding to the second uplink transmission may be completely different from or partially different from the band corresponding to the first uplink transmission.
  • the number of bands corresponding to the second uplink transmission is less than the number of bands corresponding to the first uplink transmission, which means that the total number of bands corresponding to the second uplink transmission is less than the total number of bands corresponding to the first uplink transmission.
  • the switching bands of the first uplink transmission are band-1 and band-2
  • the switching bands of the second uplink transmission are band-3 or band-4. Which band is replaced is determined based on the end time and/or start time of the original band.
  • determining the band allowed to be replaced according to the end time and/or start time of the band corresponding to the first uplink transmission includes:
  • the first target number may be the smallest or largest number, or may be another predetermined number.
  • the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is less than the number of bands corresponding to the first uplink transmission, if the end time or start time of the current switching band pair is the same (for example, the end time of band-1 is the same as the end time of band-2, or the start time of band-1 is the same as the start time of band-2), the configuration information of the band with the smallest number may be selected to be replaced, or the configuration information of the band with the largest number may be selected to be replaced.
  • the band with the earliest start time or the earliest end time is determined to be allowed to be replaced. For example, the band with the earliest start or the earliest end is selected to replace the corresponding band configuration information.
  • the predefined rule indicates the switching band pair of the second uplink transmission in one of the following ways:
  • Mode 1 If the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is the same as the number of bands corresponding to the first uplink transmission, then determining that the band corresponding to the second uplink transmission is the switching band pair;
  • the switching band pair corresponding to the second uplink transmission can be determined according to a predefined rule. For example, if the switching bands of the first uplink transmission are band-1 and band-2, and the switching bands of the second uplink transmission are band-3 and band-4, then band-3 and band-4 to be sent by the second uplink transmission constitute the switching band pair.
  • Method 2 If the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is less than the number of bands corresponding to the first uplink transmission, then the switching band pair is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • the first uplink transmission is determined according to the end time and/or start time of the band corresponding to the first uplink transmission. Determining the switching band pair, comprising:
  • the band with the earliest start time or the earliest end time and the band corresponding to the second uplink transmission are determined as the switching band pair.
  • the second target number can be the minimum or maximum number, or other predetermined number, which is not limited here.
  • the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is less than the number of bands corresponding to the first uplink transmission
  • the band with the smallest number can be selected to form the switching band pair with the band corresponding to the second uplink transmission. For example: if the band of the second uplink transmission is band-3, then band-1 and the band-3 are selected to form the switching band pair of the second uplink transmission.
  • the band with the largest number and the target band may be selected to form the switching band pair.
  • band-2 and the band-3 may be selected to form the switching band pair of the second uplink transmission.
  • the band with the earliest start time or the earliest end time is determined to form a new switching band pair with the band to be transmitted.
  • determining the duration of the preparation time and the start time of the preparation time includes:
  • the duration of the preparation time is determined to be a predetermined multiple of a reference subcarrier spacing (SCS), where the reference SCS is a maximum SCS value configured by a network side device for participating in carrier switching; for example, 1 times, 1/2 times.
  • the reference SCS is a maximum SCS value configured by a network side device for participating in carrier switching.
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the duration of the preparation time and the earliest start time may be a predetermined multiple of a reference SCS, for example: the duration of the preparation time is a reference SCS.
  • the baseband processor writes the RF configuration parameters required by the RF chip into the RF hardware part through the control interfaces C1 and C2:
  • the baseband processor sends the configuration information to the M1 and M2 memories of the RF chip through the control interface C1.
  • the control interface C1 is not real-time, but performs data transmission at a certain period, as shown in Figure 2, data transmission is performed every other time slot (such as 0.5ms). Due to the limitation of the number of memories, the two memories M1 and M2 can store the RF configuration information of at most 2 bands at the same time.
  • the RF parameter configuration process can be sent to M1 and M2 in advance. For example, if M1 is idle, the RF configuration information can be sent to M1 through the control interface C1 multiple time slots in advance.
  • M1/M2 configures the RF configuration information to the hardware part through the control interface C2.
  • the advance amount can be a switching period, such as one of the values ⁇ 35us, 140us, 210us ⁇ .
  • the duration of the preparation time a_prepare_time can be the duration of a reference time slot, and the reference time slot can be defined as the time slot length with the largest SCS among the carriers of multiple bands involved in the switching.
  • the duration of the preparation time a_prepare_time may also be a multiple of 1/2 or 1/4 of the reference duration, which is not limited here.
  • determining the duration of the preparation time and the start time of the preparation time includes one of the following:
  • the start time of the preparation time is The start time can be described as: the start time of the first symbol sent on band C.
  • the starting time of the preparation time can be described as: the starting time of the first symbol sent on band C minus the "band switching time", that is, relative to 1), one band switching time is advanced.
  • the band switching period (switching period) has a candidate value of ⁇ 35us, 140us, 210us ⁇ , and the specific value is indicated by the terminal to the network side device in the capability report.
  • the terminal cannot send any data, that is, the data transmission is interrupted.
  • the RF configuration information is immediately written into the RF hardware part.
  • the method for determining the start time start can be described as: the end time of the last symbol sent on band C.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the switching condition is a switching condition that the uplink transmission that the terminal expects to schedule needs to meet.
  • the time between two consecutive uplink switching needs to be greater than or equal to a_prepare_time.
  • the current switching band pair is band 1 and band 2
  • the last switching of the two bands is at t1
  • the carrier to be sent is on band 3
  • the resulting uplink switching scenario is at t2
  • the interval between t1 and t2 is d
  • the time d is not less than the preparation time a_prepare_time.
  • the duration of the preparation time a_prepare_time does not include the band switching period.
  • the main consideration is that the "switching scenario requiring the preparation time" is a special case and is not universal, but the switching time is a necessary content in carrier switching.
  • the duration of the preparation time a_prepare_time can also include the band switching period. time.
  • the interval between the two consecutive uplink switches is not less than the duration of a_prepare_time.
  • 2P means using two transmission channels (also called two antenna ports) for transmission
  • 1P means using one transmission channel (also called one antenna port) for transmission.
  • the uplink scheduling restriction condition includes:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • DCI Downlink Control Information
  • Condition 1 the preparation time is a_prepare_time, the start time of the preparation time is start_time0, then the uplink sending time of the second uplink transmission is not earlier than:
  • the starting time of the preparation time (start_time0) + the duration of the preparation time (a_prepare_time) + the band switching duration (switching-period).
  • the terminal receives the scheduling signaling sent by the base station, indicating that uplink transmission is to be performed at time t3.
  • the scheduling signaling sent by the base station indicating that uplink transmission is to be performed at time t3.
  • a band uplink transmission switching is required, and this switching scenario requires the preparation time.
  • the start time of the preparation time is start_time0 (i.e., starting to update the RF configuration parameters of band-3)
  • the time between start_time0 and t3 is not less than the sum of a_prepare_time and the band switching time.
  • the uplink scheduling restriction condition can be described as: the time between start_time0 and t3 is not less than a_prepare_time.
  • the uplink scheduling restriction condition can also be described as: the time between start_time0 and t2 is not less than At a_prepare_time, t2 is the switching start time of the band to be transmitted.
  • Condition 2 the preparation time is a_prepare_time, the reception time of the scheduling signaling is t0, then the uplink sending time of the second uplink transmission is not earlier than:
  • the reception time of the scheduling signaling (t0) + the duration of the preparation time (a_prepare_time) + the DCI parsing time (DCI_decoding_time) + the band switching period (switching-period).
  • the terminal detects the scheduling signaling sent by the base station at time t0, indicating that uplink transmission is to be performed at time t3.
  • the scheduling signaling sent by the base station indicates that uplink transmission is to be performed at time t3.
  • a band uplink transmission switching is required, and this switching scenario requires the preparation time. Then the time between t0 and t3 is not less than:
  • the uplink scheduling restriction condition may be described as: the time between start_time0 and t3 is not less than a_prepare_time+DCI_decoding_time.
  • the time between t0 and t3 is not less than:
  • max(t0+a_prepare_time+DCI_decoding_time+switching-period, current-process-time), max() means taking the maximum value.
  • the uplink scheduling restriction condition may be described as: the time between start_time0 and t3 is not less than a_prepare_time+DCI_decoding_time.
  • preparation time is also required, which is called the first uplink transmission preparation time (current-process-time) or the first uplink preparation time.
  • first uplink preparation time and the preparation time of the embodiment of the present disclosure are serial at the UE end (i.e., they cannot be executed at the same time)
  • the time between t0 and t2 is not less than t0+a_prepare_time+current-process-time.
  • the terminal identifies the switching scenario that requires the preparation time, and determines the switching band pair for the new uplink transmission; determines the duration a_prepare_time and the start time start of the preparation time. Determining the switching condition and/or the restriction condition of the uplink scheduling based on a_prepare_time and start is conducive to more efficient execution of multi-band uplink switching and improves the switching efficiency.
  • the present disclosure also provides a band switching processing method, which is applied to a network Side equipment, including:
  • Step 801 When the number of bands is greater than the number of band configuration information that can be stored in the terminal, the network side device determines the preparation time information for the terminal to perform band switching;
  • the number of band configuration information that the terminal can store may be reported by the terminal to the network side device.
  • the number of bands refers to the number of supported switching bands, for example: the terminal supports uplink carrier switching between 3 or 4 bands.
  • the number of bands is greater than the number of band configuration information that the terminal can store, for example: the bands supported for switching by the terminal are band-1, band-2 and band-3, and the terminal only supports the storage of 2 band configuration information; or, the bands supported for switching by the terminal are band-1, band-2, band-3 and band-4, and the terminal only supports the storage of 2 or 3 band configuration information.
  • the preparation time information refers to the preparation time required for the terminal to switch bands when the number of bands is greater than the number of band configuration information that the terminal can store. Taking the switch between two bands as an example, the structural model and switching process of the terminal are shown in Figure 2. The current execution is the switch between band-1 and band-2.
  • the base station schedules data transmission on band-3.
  • the band configuration information of band-3 needs to be sent to RF (M1 or M2 memory), and then written into the RF hardware.
  • the terminal After the terminal receives the scheduling signaling on band-3, the terminal needs to perform an additional new action: that is, the band configuration information of band-3 is sent from the baseband chip to the radio frequency chip, that is, the band-3 configuration parameters are loaded.
  • the time information for executing this action is called the preparation time information.
  • Step 802 The network side device determines the switching condition of the band switching according to the preparation time information, and/or determines the uplink scheduling restriction condition after the band switching is completed;
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the network side device determines the switching condition and/or uplink scheduling restriction condition when the number of bands is greater than the number of band configuration information that the terminal can store, and the network side device satisfies the uplink scheduling restriction condition expected by the terminal when scheduling uplink transmission. For example: in the switching of 4 bands, for the case where the terminal only supports the storage of 2 or 3 band configuration information, the restriction condition of uplink scheduling after band switching is determined; in the switching of 3 bands, for the case where the terminal only supports the storage of 2 band configuration information, the restriction condition of uplink scheduling after band switching is determined.
  • a network-side device determines band switching preparation time information when the number of bands is greater than the number of band configuration information that a terminal can store, and determines a switching condition and/or an uplink scheduling restriction condition for the band switching based on the preparation time information.
  • the uplink scheduling restriction condition is met, which is conducive to more efficient execution of multi-band uplink switching and improves switching efficiency.
  • determining the preparation time information for band switching includes:
  • the first uplink transmission is the original uplink transmission scheduled by the network side device
  • the second uplink transmission is the next uplink transmission of the first uplink transmission scheduled by the network side device, that is, the first uplink transmission is the uplink transmission performed by the band for which the terminal has stored the band configuration information, and the second uplink transmission has the band configuration information of at least one band not stored.
  • the bands currently performing the transmission switching are band-1 and band-2, that is, the first uplink transmission is performed on band-1 and band-2; the next step is that the base station schedules data transmission on band-3, and the second uplink transmission is performed on band-3; if the terminal can only store 2 band configuration information, it is necessary to delete the stored band configuration information of band-1 or the stored band configuration information of band-2 and replace it with the band configuration information of band-3. Assuming that the band configuration information of band-2 is deleted, the terminal stores the band configuration information of band-1 and the band configuration information of band-3, and band-1 and band-3 can be used as the switching band pair of the second uplink transmission.
  • the switching scenario requires the preparation time.
  • the network side device further determines the duration (a_prepare_time) and the start time (start) of the preparation time required for the switching scenario.
  • the method further includes:
  • the terminal receiving first capability information sent by the terminal, where the first capability information includes the amount of band configuration information that the terminal can store;
  • the switching scenarios requiring the preparation time are different, and the terminal may report the relevant requirements to the network side device so that the network side device and the terminal can have a unified understanding of the switching scenarios.
  • the terminal may also report the conditions requiring the preparation time to the network side device, so that the network side device and the terminal can have the same understanding of the switching process.
  • the terminal indicates that the switching scenario that requires the preparation time is: numOfAdditionalPreTime ⁇ Case1-1&1-2, Case1-2, case-2-1 ⁇ .
  • Case1-1&1-2 indicates that the band switching of the above-mentioned scenario 1-1 and scenario 1-2 requires the preparation time. If Case2-1 is reported, it means that the above-mentioned scenario 2-1 requires the preparation time.
  • determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal is performed by at least one of the following:
  • Scenario 1-1 If the bands corresponding to the first uplink transmission are the first band and the second band, the bands corresponding to the second uplink transmission are the third band, and the number of band configuration information that the terminal can store is two, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the number of bands is 3, and the terminal can store 2 band configuration information, then the number of bands is greater than the number of band configuration information that the terminal can store.
  • the memories M1 and M2 store the first band and the second band configuration information respectively.
  • Scenario 1-2 If the bands corresponding to the first uplink transmission are the first band and the second band, the bands corresponding to the second uplink transmission are the third band and the fourth band, and the number of band configuration information that the terminal can store is two, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the current transmission switching (ie, the first uplink transmission) is performed between the first band and the second band, and when the next uplink transmission (ie, the second uplink transmission) is performed between the third band and the fourth band, then
  • the number of bands is 4, and the number of band configuration information that the terminal can store is 2, then the number of bands is greater than the number of band configuration information stored in the terminal.
  • the memories M1 and M2 store the RF configuration information of the first band and the second band, respectively.
  • M1 and M2 need to be used to load the RF configuration information of the third band and the fourth band, so the preparation time is required.
  • Scenario 2-1 If the bands corresponding to the first uplink transmission are the first band and the second band, the band corresponding to the second uplink transmission is the fourth band, and the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band and the third band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the next uplink transmission only includes the fourth band, then the number of bands is 4 (because the current terminal has stored the band configuration information of three bands), then the number of bands is greater than the number of band configuration information stored in the terminal.
  • M1, M2, and M3 store the band configuration information of the first band, the second band, and the third band respectively.
  • Scenario 2-2 If the bands corresponding to the first uplink transmission are the first band and the second band, the bands corresponding to the second uplink transmission are the third band and the fourth band, and the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the RF chip of the terminal has three memories, M1, M2, and M3, the current transmission switching is performed between the first band and the second band, and the band configuration parameters stored in the three memories M1, M2, and M3 are the configuration parameters of the first band, the second band, and the third band respectively, if the next uplink transmission includes the third band and the fourth band, the number of bands is 4. Therefore, the number of bands is greater than the number of band configuration information stored in the terminal, and any one of the memories M1 and M2 needs to be used to load the first band.
  • the band configuration information of four bands requires the preparation time.
  • scene 1-1, scene 1-2, scene 2-1 and scene 2-2 are switching scenes which require preparation time.
  • the method further includes:
  • the network side device can configure the switching band pair of the second uplink transmission for the terminal.
  • the switching carrier pair corresponding to the second uplink transmission is a new band-pair obtained by replacing the switching carrier pair of the first uplink transmission.
  • the uplink transmission switching if there is no band configuration information corresponding to the new uplink transmission (i.e., the second uplink transmission) in the band configuration information stored in the terminal, it is necessary to load the RF configuration parameters of the band and delete the RF configuration parameters of the currently saved band. After replacing the corresponding band configuration information, a new switching band pair is formed in the terminal.
  • the indication information is used to indicate one of the following:
  • the network-side device may indicate, through the indication information, the band parameters in the first uplink transmission band that are not allowed to be deleted or replaced, and the corresponding band is not allowed to be deleted or replaced.
  • the network-side device may indicate the band parameters to be deleted or replaced in the first uplink transmission band through the indication information, and the corresponding band is deleted or replaced.
  • a switching band pair for the second uplink transmission wherein the switching band pair for the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • the network side device may directly configure the switching band pair corresponding to the second uplink transmission for the terminal.
  • the specific implementation process of the network side device configuring the switching band pair of the second uplink transmission for the terminal through the indication information refers to the above-mentioned method embodiment applied to the terminal, which is not repeated here.
  • the network side device may determine the switching band pair for the second uplink transmission based on a predefined rule, including:
  • Mode 1 If the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is the same as the number of bands corresponding to the first uplink transmission, then each band corresponding to the first uplink transmission is allowed to be replaced;
  • Method 2 If the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is less than the number of bands corresponding to the first uplink transmission, the band that is allowed to be replaced is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • each band corresponding to the first uplink transmission is the same, it is determined that the band with the first target number is allowed to be replaced; otherwise, it is determined that the band with the earliest start time or the earliest end time is allowed to be replaced.
  • Method 1 If the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is the same as the number of bands corresponding to the first uplink transmission, then determine that the band corresponding to the second uplink transmission is the switching band pair.
  • Method 2 If the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is less than the number of bands corresponding to the first uplink transmission, then the switching band pair is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • the band with the second target number and the band corresponding to the second uplink transmission are determined as the switching band pair;
  • the band with the earliest start time or the earliest end time and the band corresponding to the second uplink transmission are determined as the switching band pair.
  • determining the duration of the preparation time and the start time of the preparation time includes:
  • the duration of the preparation time is determined to be a predetermined multiple of a reference subcarrier spacing (SCS), where the reference SCS is a maximum SCS value configured by a network side device for participating in carrier switching; for example, 1 times, 1/2 times.
  • the reference SCS is a maximum SCS value configured by a network side device for participating in carrier switching.
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the duration of the preparation time and the earliest start time may be a predetermined multiple of a reference SCS, for example: the duration of the preparation time is a reference SCS.
  • the determining the duration of the preparation time and the start time of the preparation time includes one of the following:
  • the start time of the preparation time can be described as: the start time of the first symbol sent on band C.
  • the start time of the preparation time can be described as: the start time of the first symbol sent on band C minus the "band switching time", that is, relative to 1), one band switching time is advanced.
  • the RF configuration information is immediately written into the RF hardware part.
  • the method for determining the start time start can be described as: the end time of the last symbol sent on band C.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the switching condition is a switching condition that the uplink transmission that the terminal expects to schedule needs to meet.
  • the time between two consecutive uplink switching needs to be greater than or equal to a_prepare_time.
  • the duration of the preparation time a_prepare_time does not include the band switching period.
  • the main consideration is that the "switching scenario requiring the preparation time" is a special case and is not universal, but the switching time is a necessary content in carrier switching.
  • the duration of the preparation time a_prepare_time can also include the band switching period. time.
  • the uplink scheduling restriction condition includes:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • the terminal when the network side device sends scheduling signaling DCI at a certain time (such as t0), the terminal needs to detect and parse the scheduling signaling. This process requires a processing time (ie, DCI parsing time DCI_decoding_time), and accordingly, the uplink scheduling restriction condition needs to be met.
  • Condition 1 the preparation time is a_prepare_time, the start time of the preparation time is start_time0, then the uplink sending time of the second uplink transmission is not earlier than: start_time0+a_prepare_time+switching-period.
  • Condition 2 the preparation time is a_prepare_time, the reception time of the scheduling signaling is t0, then the uplink sending time of the second uplink transmission is not earlier than: t0+a_prepare_time+DCI_decoding_time+switching-period.
  • a network-side device determines band switching preparation time information when the number of bands is greater than the number of band configuration information that a terminal can store, and determines a switching condition and/or an uplink scheduling restriction condition for the band switching based on the preparation time information.
  • the uplink scheduling restriction condition is met, which is conducive to more efficient execution of multi-band uplink switching and improves switching efficiency.
  • an embodiment of the present disclosure provides a band switching processing device 900, which is applied to a terminal and includes:
  • a first determining unit 910 is configured to determine preparation time information for band switching when the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • a second determining unit 920 is configured to determine a switching condition for the band switching according to the preparation time information, and/or determine an uplink scheduling restriction condition after the band switching is completed;
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the first determining unit includes:
  • a first determining subunit configured to determine that the preparation time is required to perform the second uplink transmission if the sum of the number of bands corresponding to the first uplink transmission and the number of bands corresponding to the second uplink transmission is greater than the number of band configuration information that can be stored in the terminal;
  • the second determining subunit is used to determine the duration of the preparation time and the starting time of the preparation time.
  • determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal is performed by at least one of the following:
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the third band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band, it is determined that the number of bands is greater than the number of band configuration information that the terminal can store;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the device further comprises:
  • the first sending unit is used to send first capability information to the network side device; the first capability information The information includes the amount of band configuration information that the terminal can store;
  • the second sending unit is used to send second capability information to the network side device, where the second capability information indicates a condition requiring preparation time.
  • the device further comprises:
  • a fifth determining unit configured to determine a switching band pair for performing the second uplink transmission in one of the following ways
  • a switching band pair for performing the second uplink transmission is determined.
  • the indication information or the predefined rule is used to indicate one of the following:
  • the switching band pair of the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • the predefined rule indicates the band in the band of the first uplink transmission that is allowed to be replaced in one of the following ways:
  • each band corresponding to the first uplink transmission is allowed to be replaced;
  • the band allowed to be replaced is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • determining the band allowed to be replaced according to the end time and/or start time of the band corresponding to the first uplink transmission includes:
  • the predefined rule indicates the switching band pair of the second uplink transmission in one of the following ways:
  • the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is the same as the number of bands corresponding to the first uplink transmission, determining that the band corresponding to the second uplink transmission is the switching band pair;
  • the switching band pair is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • determining the switching band pair according to an end time and/or a start time of a band corresponding to the first uplink transmission includes:
  • the band with the earliest start time or the earliest end time and the band corresponding to the second uplink transmission are determined as the switching band pair.
  • the second determining subunit is specifically used to:
  • the duration of the preparation time is a predetermined multiple of a reference SCS, where the reference SCS is a maximum SCS value for participating in carrier switching configured by a network-side device;
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the second determining subunit is specifically used for one of the following:
  • the earliest starting time for determining the preparation time is: the end time of sending the last symbol on the band where the first uplink transmission is replaced.
  • the second determining unit is specifically configured to:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the second determining unit is specifically configured to:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • an embodiment of the present disclosure provides a band switching processing device 1000, which is applied to a network side device, including:
  • the third determining unit 1010 is configured to determine the preparation time information for the terminal to perform band switching when the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the fourth determining unit 1020 is configured to determine a switching condition for the band switching according to the preparation time information, and/or determine an uplink scheduling restriction condition after the band switching is completed;
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the third determining unit includes:
  • a third determining subunit is configured to determine that the preparation time is required to perform the second uplink transmission if the sum of the number of bands corresponding to the first uplink transmission and the number of bands corresponding to the second uplink transmission is greater than the number of band configuration information that can be stored in the terminal;
  • the fourth determining subunit is used to determine the duration of the preparation time and the starting time of the preparation time.
  • the device further comprises:
  • a first receiving unit configured to receive first capability information sent by the terminal, where the first capability information includes the amount of band configuration information that the terminal can store;
  • the second receiving unit is configured to receive second capability information sent by the terminal, where the second capability information indicates a condition requiring preparation time.
  • determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal is performed by at least one of the following:
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the third band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band, it is determined that the number of bands is greater than the number of band configuration information that the terminal can store;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the device further comprises:
  • the third sending unit is used to send indication information to the terminal, where the indication information is used by the terminal to determine a switching band pair for performing the second uplink transmission.
  • the indication information is used to indicate one of the following:
  • the switching band pair of the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • determining the duration of the preparation time and the start time of the preparation time includes:
  • the duration of the preparation time is a predetermined multiple of a reference SCS, where the reference SCS is a maximum SCS value for participating in carrier switching configured by a network-side device;
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the determining the duration of the preparation time and the start time of the preparation time includes one of the following:
  • the earliest starting time for determining the preparation time is: the end time of sending the last symbol on the band where the first uplink transmission is replaced.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the uplink scheduling restriction condition includes:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment applied to the network side device, and can achieve the same technical effect.
  • the parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.
  • each functional unit in each embodiment of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present disclosure.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.
  • an embodiment of the present disclosure further provides a band switching processing device, which is applied to a terminal, and includes: a memory 1120, a transceiver 1100, and a processor 1110; wherein the memory 1120 is used to store a computer program; the transceiver 1100 is used to receive and send data under the control of the processor 1110; the processor 1110 is used to read the computer program in the memory and perform the following operations:
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the processor is configured to read the computer program in the memory and perform at least one of the following operations:
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the third band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band, it is determined that the number of bands is greater than the number of band configuration information that the terminal can store;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the transceiver is used for:
  • the first capability information includes the amount of band configuration information that the terminal can store;
  • Second capability information is sent to the network side device, where the second capability information indicates a condition requiring preparation time.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • a switching band pair for performing the second uplink transmission is determined.
  • the indication information or the predefined rule is used to indicate one of the following:
  • the switching band pair of the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • the predefined rule indicates the band in the band of the first uplink transmission that is allowed to be replaced in one of the following ways:
  • each band corresponding to the first uplink transmission is allowed to be replaced;
  • the band allowed to be replaced is determined according to the end time and/or start time of the band corresponding to the first uplink transmission.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the predefined rule indicates the switching band pair of the second uplink transmission in one of the following ways:
  • the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is the same as the number of bands corresponding to the first uplink transmission, determining that the band corresponding to the second uplink transmission is the switching band pair;
  • the switching time is determined according to the end time and/or start time of the band corresponding to the first uplink transmission. Change the band pair.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the band with the earliest start time or the earliest end time and the band corresponding to the second uplink transmission are determined as the switching band pair.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the duration of the preparation time is a predetermined multiple of a reference SCS, where the reference SCS is a maximum SCS value for participating in carrier switching configured by a network-side device;
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the processor is configured to read the computer program in the memory and perform one of the following operations:
  • the earliest starting time for determining the preparation time is: the end time of sending the last symbol on the band where the first uplink transmission is replaced.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the uplink scheduling restriction condition includes:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the start time of the preparation time, the end time of the preparation time The sum of the length and the band switching time;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1110 and various circuits of memory represented by memory 1120 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits together, which are all well known in the art and are therefore not further described herein.
  • the bus interface provides an interface.
  • the transceiver 1100 can be a plurality of components, namely, a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium.
  • the user interface 1130 can also be an interface that can be connected to external or internal devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.
  • the processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1110 when performing operations.
  • processor 1110 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • the processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions.
  • the processor and the memory can also be arranged physically separately.
  • an embodiment of the present disclosure further provides a band switching processing device, which is applied to a network side device, including: a memory 1220, a transceiver 1200, and a processor 1210; wherein the memory 1220 is used to store a computer program; the transceiver 1200 is used to receive and send data under the control of the processor 1210; the processor 1210 is used to read the computer program in the memory and perform the following operations:
  • the amount of band configuration information that the terminal can store is equal to 2 by default.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the transceiver is used for:
  • the terminal receiving first capability information sent by the terminal, where the first capability information includes the amount of band configuration information that the terminal can store;
  • Second capability information sent by the terminal is received, where the second capability information indicates a condition requiring preparation time.
  • determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal is performed by at least one of the following:
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the third band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that can be stored in the terminal is two, determining that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the band corresponding to the first uplink transmission is the first band and the second band
  • the band corresponding to the second uplink transmission is the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band information, it is determined that the number of bands is greater than the number of band configuration information that can be stored in the terminal;
  • the bands corresponding to the first uplink transmission are the first band and the second band
  • the bands corresponding to the second uplink transmission are the third band and the fourth band
  • the number of band configuration information that the terminal can store is three, and the terminal has stored the configuration information of the first band, the second band, and the third band or the fourth band, then it is determined that the number of bands is greater than the number of band configuration information that the terminal can store.
  • the transceiver is used for:
  • the indication information is used to indicate one of the following:
  • the switching band pair of the second uplink transmission includes a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.
  • the processor is configured to read the computer program in the memory and perform the following operations:
  • the duration of the preparation time is a predetermined multiple of a reference SCS, where the reference SCS is a maximum SCS value for participating in carrier switching configured by a network-side device;
  • the earliest starting time of the preparation time is determined according to the symbol sending time on the band replaced by the first uplink transmission.
  • the processor is configured to read the computer program in the memory and perform one of the following operations:
  • the earliest starting time for determining the preparation time is: the end time of sending the last symbol on the band where the first uplink transmission is replaced.
  • the switching condition includes:
  • a difference between a band switching time corresponding to the first uplink transmission and a band switching time corresponding to the second uplink transmission is greater than or equal to a duration of the preparation time.
  • the uplink scheduling restriction condition includes:
  • the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time
  • the first time is: the sum of the start time of the preparation time, the duration of the preparation time and the band switching duration;
  • the first time is: the sum of the reception time of the scheduling signaling of the network side device, the duration of the preparation time, the parsing time of the scheduling signaling and the carrier switching duration.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1210 and various circuits of memory represented by memory 1220 are linked together.
  • the bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein.
  • the bus interface provides an interface.
  • the transceiver 1200 may be a plurality of components, namely, a transmitter and a transceiver, providing a unit for communicating with various other devices on a transmission medium.
  • the processor 1210 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1210 when performing operations.
  • Processor 1210 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD).
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • the processor can also adopt a multi-core architecture.
  • the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment applied to the network side device, and can achieve the same technical effect.
  • the parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.
  • the specific embodiment of the present disclosure further provides a processor-readable storage medium on which a computer program is stored, wherein when the program is executed by the processor, the steps of the band switching processing method described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as compact disks (CD), digital video disks (DVD), Blu-ray Discs (BD), high-definition versatile disks (HVD), etc.), and semiconductor memory (such as read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND FLASH), solid-state drive (Solid State Disk or Solid State Drive, SSD)), etc.
  • magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.
  • optical storage such as compact disks (CD), digital video disks (DVD), Blu-ray Discs (BD), high-definition versatile disks (HVD
  • the technical solution provided by the embodiments of the present disclosure can be applicable to a variety of systems, especially 5G systems.
  • the applicable systems can be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new radio (NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD LTE frequency division duplex
  • TDD LTE time division duplex
  • LTE-A long term evolution advanced
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • a terminal device may be called a user equipment (UE).
  • a wireless terminal device may communicate with one or more core networks (CN) via a radio access network (RAN).
  • CN core networks
  • RAN radio access network
  • a wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, Pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices that exchange language and/or data with a wireless access network.
  • Wireless terminal devices may also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile stations, remote stations, access points, remote terminal devices, access terminal devices, user terminal devices, user agents, and user devices, which are not limited in the embodiments of the present disclosure.
  • the network side device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to the terminal.
  • the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device can be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • the network device can also coordinate the attribute management of the air interface.
  • the network device involved in the embodiments of the present disclosure may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., but is not limited in the embodiments of the present disclosure.
  • network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and the distributed unit may also be geographically separated.
  • the network side device and the terminal device can each use one or more antennas for multiple input multiple output (MIMO) transmission.
  • MIMO transmission can be single-user MIMO. (Single User MIMO, SU-MIMO) or Multi-User MIMO (Multiple User MIMO, MU-MIMO).
  • MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program codes.
  • each process and/or box in the flowchart and/or block diagram, as well as the combination of the process and/or box in the flowchart and/or block diagram can be implemented by computer executable instructions.
  • These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.
  • processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente divulgation concerne un procédé et un appareil de traitement de transfert de bande. Le procédé comprend les étapes suivantes : lorsque le nombre de bandes est supérieur au nombre d'informations de configuration de bande qu'un terminal peut stocker, le terminal détermine des informations de temps de préparation pour un transfert de bande ; et selon les informations de temps de préparation, le terminal détermine une condition de transfert pour le transfert de bande et/ou détermine une condition de limite de planification de liaison montante une fois le transfert de bande terminé, le nombre d'informations de configuration de bande que le terminal peut stocker étant égal à deux par défaut.
PCT/CN2023/119941 2022-09-27 2023-09-20 Procédé et appareil de traitement de transfert de bande WO2024067282A1 (fr)

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CN202211186301.9A CN117835338A (zh) 2022-09-27 2022-09-27 波段切换处理方法及装置
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Citations (4)

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US20130195078A1 (en) * 2010-11-30 2013-08-01 Sharp Kabushiki Kaisha Communication system, mobile terminal, and communication method
CN109196915A (zh) * 2016-06-30 2019-01-11 华为技术有限公司 频带处理方法及装置
WO2021077432A1 (fr) * 2019-10-26 2021-04-29 Qualcomm Incorporated Temps de préparation de transmission de liaison montante (ul tx)
CN115004822A (zh) * 2022-04-29 2022-09-02 北京小米移动软件有限公司 一种上行切换的方法、装置及可读存储介质

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US20130195078A1 (en) * 2010-11-30 2013-08-01 Sharp Kabushiki Kaisha Communication system, mobile terminal, and communication method
CN109196915A (zh) * 2016-06-30 2019-01-11 华为技术有限公司 频带处理方法及装置
WO2021077432A1 (fr) * 2019-10-26 2021-04-29 Qualcomm Incorporated Temps de préparation de transmission de liaison montante (ul tx)
CN115004822A (zh) * 2022-04-29 2022-09-02 北京小米移动软件有限公司 一种上行切换的方法、装置及可读存储介质

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