CN117835338A

CN117835338A - Band switching processing method and device

Info

Publication number: CN117835338A
Application number: CN202211186301.9A
Authority: CN
Inventors: 王俊伟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2024-04-05
Also published as: WO2024067282A1

Abstract

The application provides a band switching processing method and device. The method comprises the following steps: the method comprises the steps that under the condition that the number of wave bands is larger than the number of wave band configuration information which can be stored by a terminal, the terminal determines preparation time information for switching the wave bands; and the terminal determines the switching condition of the band switching according to the preparation time information and/or determines the uplink scheduling limit condition after the band switching is finished. According to the embodiment of the application, the terminal determines the band switching preparation time information under the condition that the number of the bands is larger than the number of the band configuration information which can be stored by the terminal, and determines the switching conditions and/or the uplink scheduling limiting conditions of the band switching according to the preparation time information, so that the terminal is beneficial to more efficient execution of the uplink switching of multiple bands and improves the switching efficiency.

Description

Band switching processing method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for processing band switching.

Background

In the existing carrier aggregation (Carrier Aggregation, CA) operation, uplink carrier switching between 3 or 4 bands (bands) is supported, when the number of memories for storing band radio frequency parameters is less than the number of participating in switching bands, there is a new effect on uplink scheduling timing of switching bands, which is avoided by increasing the number of memories of a radio frequency chip of the UE in the prior art, but the implementation complexity and hardware cost of the UE are increased, so that the method is not suitable for solving the problem.

Disclosure of Invention

The purpose of the application is to provide a band switching processing method and device, which solve the problem that the uplink transmission scheduling time sequence is influenced because the number of bands participating in switching is larger than the number of memories.

The embodiment of the application provides a band switching processing method, which comprises the following steps:

the method comprises the steps that under the condition that the number of wave bands is larger than the number of wave band configuration information which can be stored by a terminal, the terminal determines preparation time information for switching the wave bands;

and the terminal determines the switching condition of the band switching according to the preparation time information and/or determines the uplink scheduling limit condition after the band switching is finished.

Optionally, the determining the preparation time information for performing band switching when the number of bands is greater than the number of band configuration information that can be stored by the terminal includes:

if the sum of the number of the wave bands corresponding to the first uplink transmission and the number of the wave bands corresponding to the second uplink transmission is larger than the number of the wave band configuration information which can be stored by the terminal, determining that the preparation time is needed for executing the second uplink transmission;

a duration of the preparation time and a start time of the preparation time are determined.

Optionally, the number of bands is determined to be greater than the number of band configuration information that the terminal can store by at least one of:

If the wave bands corresponding to the first uplink transmission are a first wave band and a second wave band, the wave bands corresponding to the second uplink transmission are a third wave band, and the number of the wave band configuration information which can be stored by the terminal is two, determining that the number of the wave bands is larger than the number of the wave band configuration information which can be stored by the terminal;

if the wave bands corresponding to the first uplink transmission are a first wave band and a second wave band, the wave bands corresponding to the second uplink transmission are a third wave band and a fourth wave band, and the number of wave band configuration information which can be stored by the terminal is two, determining that the number of wave bands is larger than the number of wave band configuration information which can be stored by the terminal;

if the wave bands corresponding to the first uplink transmission are a first wave band and a second wave band, the wave bands corresponding to the second uplink transmission are a fourth wave band, the number of wave band configuration information which can be stored by the terminal is three, and the terminal already stores the configuration information of the first wave band, the second wave band and the third wave band, the number of wave bands is determined to be larger than the number of wave band configuration information which can be stored by the terminal;

if the bands corresponding to the first uplink transmission are a first band and a second band, the bands corresponding to the second uplink transmission are a third band and a fourth band, the number of band configuration information which can be stored by the terminal is three, and the terminal already stores the configuration information of the first band, the second band, the third band or the fourth band, then the number of bands is determined to be larger than the number of band configuration information which can be stored by the terminal.

Optionally, the method further comprises:

transmitting first capability information to network side equipment; the first capability information comprises the quantity of band configuration information which can be stored by the terminal;

and/or the number of the groups of groups,

and sending second capability information to the network side equipment, wherein the second capability information indicates the condition that the preparation time is required for executing the band switching.

Optionally, the method further comprises: determining a handover band pair for performing the second uplink transmission in the following manner;

receiving indication information sent by network side equipment, and determining a switching band pair for executing the second uplink transmission according to the indication information;

and determining a switching band pair for executing the second uplink transmission based on a predefined rule.

Optionally, the indication information or the predefined rule is used to indicate one of:

the wave band which is not allowed to be replaced in the wave band corresponding to the first uplink transmission;

the band which is allowed to be replaced in the band corresponding to the first uplink transmission;

the second uplink transmission switching band pair comprises a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission.

Optionally, the predefined rule indicates a band of the bands of the first uplink transmission that is allowed to be replaced by one of:

if the wave bands corresponding to the second uplink transmission are different from the wave bands corresponding to the first uplink transmission, and the number of the wave bands corresponding to the second uplink transmission is the same as the number of the wave bands corresponding to the first uplink transmission, each wave band corresponding to the first uplink transmission is allowed to be replaced;

and if the wave band corresponding to the second uplink transmission is different from the wave band corresponding to the first uplink transmission and the number of the wave bands corresponding to the second uplink transmission is smaller than that of the wave bands corresponding to the first uplink transmission, determining the wave band which is allowed to be replaced according to the ending time and/or the starting time of the wave band corresponding to the first uplink transmission.

Optionally, determining the band allowed to be replaced according to the ending time and/or the starting time of the corresponding band of the first uplink transmission includes:

if the ending time or the starting time of each wave band corresponding to the first uplink transmission is the same, determining that the wave band of 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.

Optionally, the predefined rule indicates the handover band pair of the second uplink transmission by one of:

if the wave bands corresponding to the second uplink transmission are different from the wave bands corresponding to the first uplink transmission, and the number of the wave bands corresponding to the second uplink transmission is the same as that of the wave bands corresponding to the first uplink transmission, determining that the wave bands corresponding to the second uplink transmission are the switching wave band pairs;

and if the wave band corresponding to the second uplink transmission is different from the wave band corresponding to the first uplink transmission and the number of the wave bands corresponding to the second uplink transmission is smaller than that of the wave bands corresponding to the first uplink transmission, determining the switching wave band pair according to the ending time and/or the starting time of the wave band corresponding to the first uplink transmission.

Optionally, determining the handover band pair according to the end time and/or the start time of the band corresponding to the first uplink transmission includes:

if the ending time or the starting time of each wave band corresponding to the first uplink transmission is the same, determining the wave band corresponding to the second uplink transmission and the wave band of the second target number as the switching wave band pair;

otherwise, determining the band with the earliest starting time or the earliest ending time and the band corresponding to the second uplink transmission as the switching band pair.

Optionally, the determining the duration and the starting time of the preparation time includes:

determining the duration of the preparation time as a preset multiple of a reference SCS, wherein the reference SCS is the maximum SCS value of the carrier switching participation configured by the network side equipment;

and determining the earliest starting time of the preparation time according to the symbol sending time on the replaced wave band of the first uplink transmission.

Optionally, the determining the earliest start time of the preparation time according to the symbol transmission time on the replaced band of the first uplink transmission includes one of the following:

the earliest start time for determining the preparation time is: the starting time of transmitting a first symbol on the replaced wave band of the first uplink transmission;

the earliest start time for determining the preparation time is: the difference value between the starting time of transmitting the first symbol on the replaced wave band of the first uplink transmission and the wave band switching time;

the earliest start time for determining the preparation time is: and the end time of the last symbol transmitted on the replaced wave band of the first uplink transmission.

Optionally, the switching condition includes:

the difference between the band switching time corresponding to the first uplink transmission and the band switching time corresponding to the second uplink transmission is greater than or equal to the duration of the preparation time.

Optionally, the uplink scheduling constraint includes:

the uplink sending time when the terminal performs the second uplink transmission is the first time or later than the first time;

wherein the first time is: the sum of the starting time of the preparation time, the duration of the preparation time and the band switching duration;

or,

the first time is: the sum of the receiving time of the scheduling signaling of the network side equipment, the duration of the preparation time, the analysis time of the scheduling signaling and the carrier switching duration.

the method comprises the steps that under the condition that the number of wave bands is larger than the number of wave band configuration information which can be stored by a terminal, network side equipment determines preparation time information for the terminal to switch the wave bands;

and the network side equipment determines the switching condition of the band switching according to the preparation time information and/or determines the uplink scheduling limit condition after the band switching is finished.

Optionally, the method further comprises:

receiving first capability information sent by the terminal, wherein the first capability information comprises the quantity of band configuration information which can be stored by the terminal;

and/or the number of the groups of groups,

and receiving second capability information sent by the terminal, wherein the second capability information indicates a condition that the preparation time is required for executing the band switching.

Optionally, the method further comprises:

receiving first capability information sent by the terminal; the first capability information includes the number of band configuration information that the terminal is capable of storing.

Optionally, the method further comprises:

and sending indication information to the terminal, wherein the indication information is used for determining the switching band pair for executing the second uplink transmission by the terminal.

Optionally, the indication information is used for indicating one of the following:

Optionally, the switching condition includes:

Optionally, the uplink scheduling constraint includes:

or,

The embodiment of the application provides a band switching processing device, which is applied to a terminal and comprises: memory, transceiver, processor:

A memory for storing a computer program; a transceiver for receiving and transmitting data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

determining preparation time information for performing band switching under the condition that the number of the bands is larger than the number of band configuration information which can be stored by the terminal;

and determining the switching condition of the band switching according to the preparation time information, and/or determining the uplink scheduling limit condition after the band switching is finished.

Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

Optionally, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

Optionally, the transceiver is configured to:

and/or the number of the groups of groups,

determining a handover band pair for performing the second uplink transmission in the following manner;

Optionally, the processor is configured to read the computer program in the memory and perform one of the following operations:

Optionally, the switching condition includes:

Optionally, the uplink scheduling constraint includes:

or,

An embodiment of the present application provides a band switching processing apparatus, which is applied to a network side device, including: memory, transceiver, processor:

Optionally, the transceiver is configured to:

and/or the number of the groups of groups,

Optionally, the transceiver is configured to:

Optionally, the switching condition includes:

Optionally, the uplink scheduling constraint includes:

or,

The embodiment of the application provides a band switching processing device, which is applied to a terminal and comprises:

a first determining unit configured to determine preparation time information for performing band switching in a case where the number of bands is greater than the number of band configuration information that the terminal can store;

and the second determining unit is used for determining the switching condition of the band switching according to the preparation time information and/or determining the uplink scheduling limit condition after the band switching is finished.

An embodiment of the present application provides a band switching processing apparatus, which is applied to a network side device, including:

a third determining unit, configured to determine preparation time information for performing band switching when the number of bands is greater than the number of band configuration information that can be stored by the terminal;

and a fourth determining unit, configured to determine a switching condition of the band switching according to the preparation time information, and/or determine an uplink scheduling constraint condition after the band switching is completed.

Embodiments of the present application provide a processor-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described band switching processing method or implements the steps of the above-described band switching processing method.

The beneficial effects of the above-mentioned technical scheme of this application are:

according to the embodiment of the application, the terminal determines the band switching preparation time information under the condition that the number of the bands is larger than the number of the band configuration information which can be stored by the terminal, and determines the switching conditions and/or the uplink scheduling limiting conditions of the band switching according to the preparation time information, so that the terminal is beneficial to more efficient execution of the uplink switching of multiple bands and improves the switching efficiency.

Drawings

Fig. 1 shows one of the flow diagrams of the band switching processing method in the embodiment of the present application;

FIG. 2 is a schematic diagram of a band switching process according to an embodiment of the present application;

FIG. 3 is a second schematic diagram of a band switching process according to an embodiment of the present disclosure;

FIG. 4 shows a third exemplary band switching process according to an embodiment of the present disclosure;

FIG. 5 shows a fourth schematic diagram of a band switching process according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a band switching process according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a band switching process according to an embodiment of the present disclosure;

fig. 8 shows a second flowchart of a band switching processing method according to an embodiment of the present application;

fig. 9 shows one of schematic structural diagrams of a band switching processing device according to an embodiment of the present application;

Fig. 10 shows a second schematic configuration diagram of a band switching processing device according to an embodiment of the present application;

fig. 11 is a third schematic diagram of a band switching processing device according to an embodiment of the present disclosure;

fig. 12 shows a fourth schematic configuration diagram of a band switching processing device according to an embodiment of the present application.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present application more apparent, the following detailed description will be given with reference to the accompanying drawings and the specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the present application. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present application, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the embodiment of the application, the term "and/or" describes the association relationship of the association objects, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The embodiment of the application provides a band switching processing method and device, which are used for solving the problem that the uplink transmission scheduling time sequence is influenced because the number of bands participating in switching is larger than the number of memories

The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

As shown in fig. 1, an embodiment of the present application provides a band switching processing method, which is applied to a terminal, and specifically includes the following steps:

step 101, determining preparation time information for performing band switching by a terminal under the condition that the number of the bands is larger than the number of band configuration information which can be stored by the terminal;

in this embodiment, the band configuration information may be stored in an RF chip of the terminal, for example: stored in a memory of the RF chip. The number of bands refers to the number of handover 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 wave bands supported by the terminal for switching are band-1, band-2 and band-3, and the terminal only supports to store 2 wave band configuration information; alternatively, the bands supported by the terminal for handover are band-1, band-2, band-3 and band-4, and the terminal supports storing only 2 or 3 band configuration information.

The preparation time information refers to preparation time required by the terminal for performing band switching when the number of the bands is greater than the number of the band configuration information which can be stored by the terminal. Taking the switching between two bands as an example, the structure model and the switching process of the terminal are shown in fig. 2, the switching between band-1 and band-2 is currently performed, in the next step, the base station schedules to transmit data on band-3, in order to enable the terminal to transmit data on band-3, band configuration information of band-3 needs to be transmitted to an RF (M1 or M2 memory), then RF hardware is written, and after receiving the scheduling signaling on band-3, the terminal needs to additionally perform a new action: namely, band-3 band configuration information is sent from the baseband chip to the radio frequency chip, namely, the band-3 configuration parameters are loaded, and the time information for executing the action is called as the preparation time information.

Step 102, the terminal determines the switching condition of the band switching according to the preparation time information, and/or determines the uplink scheduling limit condition after the band switching is completed.

After determining the preparation time information, the terminal determines a handover condition and/or an uplink scheduling constraint condition in a case that the number of bands is greater than the number of band configuration information that the terminal can store, for example: in the switching of 4 wave bands, aiming at the situation that a terminal only supports to store 2 or 3 wave band configuration information, determining the limiting condition of uplink scheduling after band switching; in the 3-band switching, the limiting condition of uplink scheduling after band switching is determined for the case that the terminal only supports storing 2 band configuration information.

In actual uplink transmission, information or data is transmitted on a carrier (carrier), and the carrier belongs to a specific band. In the embodiments of the present application, the band handover also includes the meaning of "carrier handover in band". While "band parameter configuration" also includes "carrier parameter configuration in band".

As an optional embodiment, the determining the preparation time information for performing band switching in the case that the number of bands is greater than the number of band configuration information that can be stored by the terminal includes:

In this embodiment, the first uplink transmission is an original uplink transmission, and the second uplink transmission may be a next uplink transmission of the first uplink transmission scheduled by the base station, that is, the first uplink transmission is an uplink transmission performed by a band in which the terminal has stored band configuration information, and the second uplink transmission has band configuration information of at least one band that is not stored. For example: the current wave bands for executing the sending switch are band-1 and band-2, namely the first uplink transmission is carried out on the band-1 and band-2; the base station schedules the data transmission on the band-3, and the second uplink transmission is performed on the band-3; if the terminal can only store 2 band configuration information, deleting the stored band configuration information of band-1 or the stored band configuration information of band-2, replacing the band configuration information with the band configuration information of band-3, and if the band configuration information of band-2 is deleted, storing the band configuration information of band-1 and the band configuration information of band-3 by the terminal, wherein band-1 and band-3 can be used as a switching band pair of the second uplink transmission.

And when the sum of the wave band number corresponding to the first uplink transmission and the wave band number corresponding to the second uplink transmission is larger than the wave band configuration information number which can be stored by the terminal, the preparation time is needed for the switching scene. The terminal further determines a duration (a_preparation_time) and a start time (start) of a preparation time required for the switching scene.

And the sum of the wave band number corresponding to the first uplink transmission and the wave band number corresponding to the second uplink transmission does not contain the repeated wave band number. For example: the primary band corresponding to the first uplink transmission includes: performing a transmission switching of the first uplink transmission between band-1 and band-2, i.e., band-1 and band-2; and the target wave bands corresponding to the second uplink transmission are band-1 and band-3, namely after the band configuration information stored in band-2 is replaced, the sending switching of the second uplink transmission is carried out between band-1 and band-3, and then the sum of the wave band number corresponding to the first uplink transmission and the wave band number corresponding to the second uplink transmission is recorded as 3 (only 1 is counted by two repeated band-1).

Optionally, the switching scenario requiring the preparation time may include:

scene 1: for example: the current sending switch (i.e. the first uplink transmission) is performed by a first band and a second band, and the next uplink transmission (i.e. the second uplink transmission) is performed by a third band; the terminal can only store 2 wave band configuration information;

Scene 2: for example: the current sending switch is performed by the first band and the second band, the next uplink transmission is the third band and the fourth band, and the terminal can only store 2 or 3 band configuration information.

In this embodiment, the introduction of the preparation time may generate new constraints and effects on the UE uplink transmission, and in order to reduce the effect on the uplink scheduling of the entire UE, the terminal identifies a handover scenario requiring the preparation time. It is assumed that two band configuration information can be stored in a radio frequency chip of the terminal, for example, the radio frequency chip includes two memories M1 and M2 for storing radio frequency configuration parameters. Wherein, M1 and M2 can store a band parameter configuration respectively, thus the switching scene of the preparation time is needed, and the number of band configuration information which can be stored in the radio frequency chip by the terminal is depended.

As an alternative embodiment, the number of bands is determined to be greater than the number of band configuration information that the terminal can store by at least one of:

scenario 1-1: if the wave bands corresponding to the first uplink transmission are a first wave band and a second wave band, the wave bands corresponding to the second uplink transmission are a third wave band, and the number of the wave band configuration information which can be stored by the terminal is two, determining that the number of the wave bands is larger than the number of the wave band configuration information which can be stored by the terminal.

For example: the current sending switch (i.e. the first uplink transmission) is a first band and a second band, when the next uplink transmission (i.e. the second uplink transmission) is a third band, the number of bands is 3, the terminal can store 2 band configuration information, and the number of bands is greater than the number of band configuration information that the terminal can store. In this scenario, memories M1 and M2 store first band and second band configuration information, respectively. When the scheduling signaling indicates that the next uplink transmission is switched to the third band, the radio frequency configuration information of the third band needs to be loaded by using M1 or M2, and thus the preparation time is required.

For example: the first, second and third bands are respectively noted as: band-1, band-2, band-3, band switching in this scenario is shown in fig. 3.

Scenario 1-2: if the wave bands corresponding to the first uplink transmission are a first wave band and a second wave band, the wave bands corresponding to the second uplink transmission are a third wave band and a fourth wave band, and the number of the wave band configuration information which can be stored by the terminal is two, determining that the number of the wave bands is larger than the number of the wave band configuration information which can be stored by the terminal.

The current sending switch (i.e. the first uplink transmission) is a first band and a second band, when the next uplink transmission (i.e. the second uplink transmission) is a third band and a fourth band, the number of bands is 4, the number of band configuration information that the terminal can store is 2, and the number of bands is greater than the number of band configuration information stored by the terminal. In this scenario, memories M1 and M2 store radio frequency configuration information for the first band and the second band, respectively. When the next uplink transmission is switched to the third and fourth bands (i.e., the third and fourth bands perform transmission switching), the radio frequency configuration information of the third and fourth bands needs to be loaded using M1 and M2, and thus the preparation time is required.

For example: the first, second, third and fourth bands are respectively noted as: band-1, band-2, band-3, band-4, band switching in this scenario is shown in fig. 4.

Scenario 2-1: if the wave bands corresponding to the first uplink transmission are a first wave band and a second wave band, the wave bands corresponding to the second uplink transmission are a fourth wave band, the number of wave band configuration information which can be stored by the terminal is three, and the terminal already stores the configuration information of the first wave band, the second wave band and the third wave band, then the number of wave bands is determined to be larger than the number of wave band configuration information stored by the terminal.

For example: when the radio frequency chip of the terminal has three memories of M1, M2 and M3, and the band configuration parameters stored by the three memories of M1, M2 and M3 are respectively the configuration parameters of the first band, the second band and the third band, if the next uplink transmission only comprises the fourth band, the band number is 4 (because the current terminal already stores band configuration information of three bands), and the band number is larger than the band configuration information stored by the terminal. In this scenario, M1, M2, and M3 store band configuration information of the first band, the second band, and the third band, respectively. When the next uplink transmission switches the fourth band, band configuration information of the fourth band needs to be loaded using any one memory of M1, M2, and M3, and thus the preparation time is required.

Scenario 2-2: if the bands corresponding to the first uplink transmission are a first band and a second band, the bands corresponding to the second uplink transmission are a third band and a fourth band, the number of band configuration information which can be stored by the terminal is three, and the terminal already stores the configuration information of the first band, the second band, the third band or the fourth band, then the number of bands is determined to be larger than the number of band configuration information which can be stored by the terminal.

For example: when three memories M1, M2 and M3 are provided in the radio frequency chip of the terminal, the current transmission switch is performed by using 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, so that the number of bands is greater than the number of band configuration information stored in the terminal, and the band configuration information of the fourth band needs to be loaded by using any one memory of the memories M1 and M2, so that the preparation time is required.

The above scenes 1-1, 1-2, 2-1 and 2-2 are switching scenes requiring preparation time.

It should be noted that, assuming that the terminal supports transmission switching of at most 4 bands, there are four memories M1, M2, M3 and M4 in the radio frequency chip of the terminal, the preparation time is not required.

As an alternative embodiment, the method further comprises: transmitting first capability information to network side equipment; the first capability information includes the number of band configuration information that the terminal is capable of storing.

In this embodiment, for different terminal capabilities, the handover scenario requiring the preparation time is different, and the terminal may report the relevant requirement to the network side device, so that the network side device and the terminal can have a unified understanding for the handover scenario.

Taking the example that the number of band configuration information that can be stored by the terminal is the number of memories included in the terminal, the terminal reports the number of memories to a network side device, for example: the capability parameters of the terminal for reporting the memory may include: numOfmemory { N2, N3, N4}. Where N2 represents 2 memories for holding the band parameter configuration, N3 represents 3 memories, and N4 represents 4 memories. And the network side equipment and the terminal judge the switching scene requiring the preparation time according to the number of the reported memories. When N2 is reported, the scene 1-1 and the scene 1-2 are the above; and when N3 is reported, the scene is scene 2-1 and scene 2-2.

Optionally, when the number of memories of the terminal is N2, the terminal may not need to report, and the network side device and the terminal default to have 2 memories.

As an alternative embodiment, the method further comprises: and sending second capability information to the network side equipment, wherein the second capability information indicates the condition requiring the preparation time.

In this embodiment, the condition requiring the preparation time may be: the method for determining the condition requiring the preparation time is a method for determining that the number of the wave bands is larger than the number of the wave band configuration information which can be stored by the terminal. The switching scenario with the number of bands larger than the number of band configuration information that the terminal can store may include one or more of the above-mentioned scenario 1-1, scenario 1-2, scenario 2-1, and scenario 2-2.

The terminal reports the condition of needing the preparation time to the network side equipment, namely, reports the switching scene needing the preparation time to the network side equipment, so that the network side equipment can be consistent with the understanding of the terminal on the switching process.

For example: the switching scene of the terminal indicating the need of the preparation time is as follows: numOfAdtionalPreTime { Case1-1&1-2, case2-1 }. Where Case1-1&1-2 represents that the above-described band switching of scene 1-1 and scene 1-2 requires the preparation time. If Case2-1 is reported, this indicates that scene 2-1 requires the preparation time.

Alternatively, for Case1-1&1-2, the terminal may not report, i.e., the network side device and the terminal default to the above-described scenario 1-1 and scenario 1-2 requiring the preparation time.

Note that, the first, second, third, and fourth bands in the embodiments of the present application are not numbers of bands, but are used to represent different bands, and may also be represented as: a first carrier, a second carrier, etc.

As an alternative embodiment, the method further comprises: determining a handover-band pair (band-pair) for performing the second uplink transmission in the following manner;

(1): and receiving indication information sent by the network side equipment, and determining a switching band pair for executing the second uplink transmission according to the indication information.

(2) And determining a switching band pair for executing the second uplink transmission based on a predefined rule.

And the switching carrier pair corresponding to the second uplink transmission is a new band-pair obtained after the switching carrier pair of the first uplink transmission is replaced. In the uplink transmission switching, if there is no new uplink transmission (i.e. the second uplink transmission) corresponding band configuration information in the band configuration information stored in the terminal, the band radio frequency configuration parameters need to be loaded, and the radio frequency configuration parameters of the band which are stored currently are deleted. After replacing the corresponding band configuration information, new handover band pairs are formed at the terminal, and the preparation time is not required for the band handover executed after the current handover in the new handover band pairs.

In this embodiment, the terminal may determine a new handover band pair according to an instruction of the network side device, or may determine a new handover band pair based on a predefined rule.

1) And the wave band which is not allowed to be replaced in the wave band corresponding to the first uplink transmission. And the network side equipment can indicate the band parameters which are not allowed to be deleted or replaced in the band of the first uplink transmission through the indication information, and the corresponding band is not allowed to be deleted or replaced. Alternatively, the terminal may determine which bands are not allowed to be deleted or replaced according to predefined rules.

2) The band which is allowed to be replaced in the band corresponding to the first uplink transmission; namely, the network side device can indicate the deleted or replaced wave band parameters in the wave band of the first uplink transmission through the indication information, and the corresponding wave band is deleted or replaced. Alternatively, the terminal may determine which bands may be deleted or replaced according to predefined rules.

3) The second uplink transmission switching band pair comprises a band corresponding to the first uplink transmission and/or a band corresponding to the second uplink transmission. The terminal may determine the second uplink switching band pair based on the indication information of the network side device or a predefined rule, where the second uplink switching band pair may be formed by a first uplink band and a second uplink band together, or may be formed by multiple second uplink bands.

In this embodiment, in uplink transmission switching, if the terminal does not store new uplink transmission band configuration information, the new band configuration parameter needs to be loaded, and the radio frequency parameter of a band that is currently stored is deleted. According to the indication information configured by the base station, the embodiment determines deleted or replaced band configuration information (simply referred to as replaced band).

The procedure in which the band configuration information is replaced can be understood as follows:

(1) Before the replacement of the band configuration information: between bands of the plurality of band configuration information recorded in the memory, an uplink switch can be directly performed without the preparation time.

For example: the configuration parameters of band-1 are stored in M1, and the configuration parameters of band-2 are stored in M2. Then a switch is made between band-1 and band-2, and the preparation time is not required, and band-1 and band-2 are referred to as a switch band pair: band-pair (band-1, band-2).

(2) After the band configuration parameter replacement: if the band-1 parameter of M1 is replaced by band-3, then:

if a switch between Band-1 and Band-2 occurs, it cannot be directly performed, requiring the preparation time;

if the switch between Band-3 and Band-2 occurs, the uplink switch can be directly performed without the preparation time, and the new switch Band pair is: band-pair (band-3, band-2).

The determination of the handover band pair for the second uplink transmission based on the indication information sent by the network side device is illustrated by way of example.

Mode one:

(1) The base station configures one band that cannot be replaced (it is assumed that the UE can store 2 band configuration information, e.g., 2 memories).

The base station configures a band which cannot be replaced through a high-layer signaling or a physical layer signaling, namely, the configuration parameters of the band always occupy one of memories (a terminal cannot be modified according to an uplink scheduling signaling), and the parameters of the other memory can be replaced by the configuration parameters of other bands, namely, the parameters can be modified according to the uplink scheduling signaling, and a new switching band pair is formed.

For example: the base station configures one primary band (i.e., a band that cannot be replaced) by the following signaling:

master-band-carrier ENUMERATED { B1, B2, B3, B4}; wherein ENUMERATED is of an enumeration type, and is considered as being irreplaceable in configuration parameters corresponding to band-1 when configured as B1, and band-1 is taken as one of bands when a new switching band pair is formed; at the UE end, when the handover scenario requiring the preparation time occurs, the terminal determines the band of the replaced band configuration parameters as shown in table 1:

Table 1: configuration information based on non-replaceable band

As shown in table 1, the configuration information of band-1 is not allowed to be replaced, when the first uplink transmission is sent on band-3 and the second uplink transmission is sent on band-1 and band-2, the stored configuration information of band-2 is replaced by the configuration information of band-3, and then the second uplink transmission is sent on band-1 and band-3; when the switching band pair of the first uplink transmission is band-1 and band-3 and the second uplink transmission is sent on band-2, replacing the stored configuration information of band-3 with the configuration information of band-2, and then the switching band pair of the second uplink transmission is band-1 and band-2; when the switching band pair of the first uplink transmission is band-1 and band-4 and the second uplink transmission is sent on band-3, the stored configuration information of band-4 is replaced by the configuration information of band-3, and then the switching band pair of the second uplink transmission is band-1 and band-3.

(2) The base station configures 2 non-replaceable bands (assuming that the UE can store 3 band configuration information, e.g., 3 memories).

The base station configures two non-replaceable bands through higher layer signaling or physical layer signaling, namely the configuration parameters of the two bands always occupy two memories, and the parameters of the other memory can be replaced by other band parameters.

Such as: the base station configures the primary bands (i.e., bands that cannot be replaced) of the two bands by signaling:

Master-band-carrier-1ENUMERATED{B1,B2,B3,B4}；

Master-band-carrier-2ENUMERATED{B1,B2,B3,B4}；

wherein ENUMERATED is of an enumeration type, and when Master-band-carrier-1 is configured as B1 and Master-band-carrier-2 is configured as B2, configuration parameters corresponding to band-1 and band-2 are considered to be irreplaceable; then for the UE, when a handover scenario occurs that requires the preparation time, the terminal determines the band of the replaced radio frequency parameters as shown in table 2.

Table 2: configuration information based on non-replaceable band

As shown in table 2, the configuration information of the band-1 and the band-2 are not allowed to be replaced, when the first uplink transmission is performed on the band-4 and the second uplink transmission is performed on the band-1 and the band-2, the stored configuration information of the band-3 is replaced by the configuration information of the band-4, and then the second uplink transmission is performed on any two combinations of the band-1, the band-2 and the band-4, and other switching scenarios are similar and are not repeated herein.

Mode two: the base station configures the replaced band.

Two bands for performing band switching are defined as a "switching band pair", and when a switching scenario requiring the preparation time occurs, the base station configures which band of the current "switching band pair" has its RF configuration parameters replaced.

Optionally, the base station configuration content includes the following three information:

1) Current "handover band pair" information: and executing the two band information of the uplink transmission switching of the current UE.

2) Band information to be transmitted

3) The replaced band information: it means that at least one of the bands to be sent next upstream is not any of the "handover band pair", and needs to be refreshed/replaced.

Taking the example that the terminal has 2 memories, i.e. the terminal is able to store 2 band configuration information, the base station configures the replaced band as shown in table 3.

Table 3: replacement band (2 memories) based on "switch band pair

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As shown in table 3 above, the handover scenario of row numbers 1-6 is the case when only one band is sent next upstream, i.e. only 1T (1 channel) transmission, the base station indicates the band of the replaced configuration parameters.

For example: in the line number 1, the current (the first uplink transmission) switching band pair is band-1 and band-2, and the memories store configuration information of band-1 and band-2 respectively. The second uplink transmission is to be sent on either band-3 or band-4, and the configuration information of the base station configured band-1 is allowed to be replaced, the configuration information of band-1 stored in the MI may be replaced with the configuration information of band-3 or band-4.

Line number 7: the next uplink transmission is in the case of 2 bands (i.e., a state supporting 1p+1p), and is different from the band of the current uplink transmission switching pair. The terminal defaults to replace all configuration parameters of all uplink transmission switching pairs.

As shown by the row number 7 in table 3, the current (the first uplink transmission) pair of handover bands is band-1 and band-2, and the memories store configuration information of band-1 and band-2, respectively. The second uplink transmission is to be sent on band-3 and band-4, and the configuration information of base station configuration band-1 and band-2 are allowed to be replaced, so that the configuration information of band-1 stored in MI and the configuration information of band-1 stored in M2 can be replaced by the configuration information of band-3 and band-4.

Line number 8: the next uplink transmission is at the 2-band (i.e., 1p+1p enabled state) and there is one band identical to one of the bands of the handover band pair of the current uplink transmission. The terminal defaults to replace the band parameter that was not sent in the uplink transmission switch pair.

As shown by the row number 8 in table 3, the current (the first uplink transmission) pair of handover bands is band-1 and band-2, and the memories store configuration information of band-1 and band-2, respectively. The second uplink transmission is to be sent on band-2 and band-4, and the second uplink transmission has the same sending band-2 as the current uplink transmission, and the configuration information of the base station configured band-1 is allowed to be replaced, and the configuration information of band-1 stored in the MI can be replaced by the configuration information of band-4.

Taking the example that the terminal has 3 memories, i.e. the terminal can store 3 band configuration information, the base station configures the replaced band as shown in table 4.

Table 4: replacement band (3 memories) based on "switch band pair

As shown in table 4 above, for row number 1: the next uplink transmission is in the case of 2 bands (band-4 and band-3) (i.e. 1p+1p supported state), and is different from the band of the current uplink transmission handover band pair, the base station indicates that the band configuration parameters of band-1 are replaced.

For row number 2: and when the next uplink transmission does not belong to the line sequence number 1, replacing the band parameter (namely band-3) which does not belong to the current uplink transmission switching band pair.

Mode three: the base station configures a second uplink transmission handover band pair, i.e. the base station indicates which new handover band pairs are formed.

1) Current "handover band pair" information: and executing the information of the uplink transmission switching band pair of the current UE.

2) The information of the band will be transmitted.

3) New handover band pair: which band of the current uplink transmission switching pair and the band to be transmitted form the switching band pair.

Taking the example that the terminal has 2 memories, i.e. the terminal can store 2 band configuration information, the handover band pairs configured by the base station are shown in table 5.

Table 5: based on the formation of "new handover band pairs" (2 memories)

As shown in table 5 above, the handover scenario of row numbers 1 to 12 is the case when only one band is sent next upstream, i.e., only 1T (1 channel) transmission, the base station instructs to form a new handover band pair.

For example, as indicated by line number 1, the current (the first uplink transmission) pair of handover bands is band-1 and band-2. The second uplink transmission is to be sent on band-3, the base station indicating that the new handover band pair is band-1 and band-3, i.e. the already stored configuration information of band-2 is replaced by the configuration information of band-3.

Row numbers 13 to 14: in the case when the next uplink is sent in 2 bands (i.e. 1p+1p enabled state), a new band switch pair is formed for the default of 2 bands for which uplink is to be sent.

For example, as indicated by line number 13, the current (the first uplink transmission) pair of handover bands is band-3 and band-4. The second uplink transmission is to be sent on both band-2 and band-3, the base station indicating that the new handover band pair is band-2 and band-3, i.e. the already stored configuration information of band-4 is replaced by the configuration information of band-3.

Taking the example that the terminal has 3 memories, i.e. the terminal can store 3 band configuration information, the handover band pairs configured by the base station are shown in table 6.

Table 6: based on the formation of "new handover band pairs" (3 memories)

As shown in table 6 above, line number 1: the new switching band pair is any two combinations of band-1, band-3 and band-4, namely, the configuration parameters equivalent to the replacement of band-2.

The method for determining the handover band pair of the second uplink transmission by the terminal based on the predefined rule is described below by way of a specific embodiment.

As an alternative embodiment, the predefined rule indicates a band of the bands of the first uplink transmission that is allowed to be replaced by one of:

mode one: if the wave bands corresponding to the second uplink transmission are different from the wave bands corresponding to the first uplink transmission, and the number of the wave bands corresponding to the second uplink transmission is the same as the number of the wave bands corresponding to the first uplink transmission, each wave band corresponding to the first uplink transmission is allowed to be replaced;

in this embodiment, 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 band 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. The configuration information of both bands (e.g., band-1 and band-2) currently performing the band handover is replaced.

Mode two: and if the wave band corresponding to the second uplink transmission is different from the wave band corresponding to the first uplink transmission and the number of the wave bands corresponding to the second uplink transmission is smaller than that of the wave bands corresponding to the first uplink transmission, determining the wave band which is allowed to be replaced according to the ending time and/or the starting time of the wave 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, that is, the band corresponding to the second uplink transmission is completely different from or partially different from the band corresponding to the first uplink transmission, and that the number of bands corresponding to the second uplink transmission is smaller than that of the bands corresponding to the first uplink transmission means that: the total number of the wave bands corresponding to the second uplink transmission is smaller than the total number of the wave bands corresponding to the first uplink transmission. For example: the switching bands of the first uplink transmission are band-1 and band-2, and the switching band of the second uplink transmission is band-3 or band-4. It is determined which band is replaced according to the end time and/or start time of the original band.

In this embodiment, the first target number may be the smallest or largest number, or may be another predetermined number. When the second uplink transmission corresponding band is different from the band corresponding to the first uplink transmission, and the number of bands corresponding to the second uplink transmission is smaller than the number of bands corresponding to the first uplink transmission, if the end time or the start time of the current handover band pair is the same (for example, the end time of band-1 and the end time of band-2 are the same, or the start time of band-1 and the start time of band-2 are the same), 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.

If the ending time or the starting time of each band corresponding to the first uplink transmission is not satisfied, determining that the band with the earliest starting time or the earliest ending time is allowed to be replaced. For example: and selecting the earliest starting or earliest ending band, and carrying out corresponding band configuration information replacement.

As an alternative embodiment, the predefined rule indicates the handover band pair of the second uplink transmission by one of:

mode 1: if the wave bands corresponding to the second uplink transmission are different from the wave bands corresponding to the first uplink transmission, and the number of the wave bands corresponding to the second uplink transmission is the same as that of the wave bands corresponding to the first uplink transmission, determining that the wave bands corresponding to the second uplink transmission are the switching wave band pairs;

in this embodiment, the handover band pair corresponding to the second uplink transmission may be determined according to a predefined rule. 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, and the band-3 and band-4 to be sent by the second uplink transmission form the switching band pair.

Mode 2: and if the wave band corresponding to the second uplink transmission is different from the wave band corresponding to the first uplink transmission and the number of the wave bands corresponding to the second uplink transmission is smaller than that of the wave bands corresponding to the first uplink transmission, determining the switching wave band pair according to the ending time and/or the starting time of the wave band corresponding to the first uplink transmission.

In this embodiment, the second target number may be the smallest or largest number, or may be another predetermined number, which is not limited herein. When the band corresponding to the second uplink transmission is different from the band corresponding to the first uplink transmission and the number of the bands corresponding to the second uplink transmission is smaller than the number of the bands corresponding to the first uplink transmission, if the end time or the start time of the current handover band pair is the same (for example, the end time of the band-1 is the same as the end time of the band-2, or the start time of the band-1 is the same as the start time of the band-2), the band with the smallest number and the band corresponding to the second uplink transmission may be selected to form the handover band pair, for example: and if the band of the second uplink transmission is band-3, selecting band-1 and the band-3 to form a switching band pair of the second uplink transmission.

Alternatively, the band with the largest number and the target band may be selected to form the handover band pair, for example: and if the band of the second uplink transmission is band-3, selecting band-2 and the band-3 to form a switching band pair of the second uplink transmission.

If the ending time or the starting time of each wave band in the wave bands corresponding to the first uplink transmission is not satisfied, determining that the wave band with the earliest starting time or the earliest ending time and the band to be transmitted form a new switching wave band pair.

As an optional embodiment, the determining the duration and the starting time of the preparation time includes:

determining the duration of the preparation time as a preset multiple of a reference SCS, wherein the reference SCS is the maximum SCS value of the carrier switching participation configured by the network side equipment; for example: 1 times and 1/2 times. Wherein the reference SCS is the maximum SCS value for the network side device configured to participate in carrier switching.

In this embodiment, in determining the preparation time for band switching, the duration of the preparation time and the earliest start time need to be determined. Wherein, the duration of the preparation time can be a predetermined multiple of a reference SCS, for example: the duration of the preparation time is a reference SCS.

Taking uplink switching between two carriers as an example, as shown in fig. 2, the baseband processor writes RF configuration parameters required by the radio frequency chip into the RF hardware part through control interfaces C1 and C2:

1): the baseband processor sends configuration information to the M1 and M2 memories of the RF chip through the control interface C1.

In general, in order to save power consumption of the RF chip, the control interface C1 performs data transmission not in real time but in a certain period, as shown in fig. 2, data is transmitted every other time slot (e.g., 0.5 ms). Due to the limitation of the number of memories, the two memories M1 and M2 simultaneously store at most 2 bands of radio frequency configuration information.

It should be noted that: the RF parameter configuration procedure may be sent to M1 and M2 in advance, such as: if M1 is idle, RF configuration information may be sent to M1 via control interface C1 a number of slots in advance.

2) M1/M2 configures the RF configuration information to the hardware part through the control interface C2.

In this process, configuration information needs to be written into the hardware part of the radio frequency before data is sent, and the advance may be a switching time (switching period), for example, the value is one of {35us,140us,210us }.

The duration a_preparation_time of the preparation time may be a duration of a reference time slot, which may be defined as a maximum time slot length of SCS among carriers of multiple bands participating in the handover. Such as: the carriers involved in the multiple band handover are: scs=15 KHz (slot length 1 ms) for carrier 1, scs=30 KHz (slot length 0.5 ms) for carrier 2, scs=60 KHz (slot length 0.25 ms) for carrier 3, the SCS referred to is scs=60 KHz, i.e. the duration of the preparation time a_preparation_time is 0.25ms.

Alternatively, the duration of the preparation time a_preparation_time may be 1/2 or 1/4 times of the reference duration, which is not limited herein.

As an optional embodiment, the determining the earliest start time of the preparation time according to the symbol transmission time on the replaced band of the first uplink transmission includes one of the following:

1) The earliest start time for determining the preparation time is: the starting time of transmitting a first symbol on the replaced wave band of the first uplink transmission;

assuming that the UE is ready to store band C band configuration information instead, the start time of the preparation time may be described as: the start time of the first symbol transmitted on band C.

2) The earliest start time for determining the preparation time is: and the difference value between the starting time of transmitting the first symbol on the replaced wave band of the first uplink transmission and the wave band switching time.

Assuming that the UE is ready to store band C band configuration information instead, the start time of the preparation time may be described as: the start time of the first symbol transmitted on band C minus the "band switch time", i.e. relative to 1), is advanced by one band switch time.

Optionally, the band switching time (switching period) has a value candidate of {35us,140us,210us }, and the specific value is indicated by the terminal to the network side device in the capability report. During the band switch time, the terminal cannot transmit any data, i.e., the transmission of data is interrupted.

3) The earliest start time for determining the preparation time is: and the end time of the last symbol transmitted on the replaced wave band of the first uplink transmission.

In this embodiment, if there is no control interface C2 in the rf chip, i.e. as long as the baseband chip sends data to the rf chip, the rf configuration information is written immediately into the hardware part of the rf. Assuming that the UE is ready to store band configuration information of band C instead, the start time start determination method may be described as: the end time of the last symbol transmitted on the bandC.

As an alternative embodiment, the switching condition includes:

In this embodiment, the terminal expects the uplink transmission scheduled in the handover condition to satisfy the handover condition. Wherein the time duration between two consecutive upstream switches needs to be greater than or equal to a_preparation_time.

As shown in fig. 5, assume that the current handover band pair is band 1 and band 2, the last handover between two bands is at t1, the carrier on band 3 is to be transmitted, and the resulting uplink handover scenario has a spacing d between t2, t1 and t2, and the time d is not less than the preparation time a_preparation_time.

In this embodiment, the duration of the preparation time a_preparation_time does not include a band switching time (switching period), and the main consideration is that "a switching scenario requiring the preparation time" is a special case, has no universality, but the switching time is necessary in carrier switching. Optionally, the duration of the preparation time a_preparation_time may also include a band switching time.

Alternatively, if the preparation time is required for both consecutive uplink segment (or carrier) handovers, then the two consecutive uplink handover intervals are not less than the duration of the a_preparation_time.

Where 2P refers to transmitting using 2 transmit channels (also referred to as two antenna ports). 1P refers to transmitting using 1 transmit channel (also referred to as 1 antenna port).

As an optional embodiment, the uplink scheduling constraint includes:

or,

In this embodiment, when the base station transmits the downlink control information (Downlink Control Information, DCI) of the scheduling signaling at a certain time (e.g., t 0), the terminal needs to perform detection of the scheduling signaling and signaling analysis. This procedure requires a processing time (i.e., DCI parsing time dci_decoding_time), and the corresponding requirement is to satisfy the uplink scheduling constraint.

Condition 1: the preparation time is a_preparation_time, and the start time of the preparation time is start_time0, so that the uplink sending time of the second uplink transmission is not earlier than:

the start time (start_time0) +the duration of the preparation time (a_preparation_time) +the duration of the band switching (switching-period).

As shown in fig. 6, the terminal receives a scheduling signaling sent by the base station, and instructs uplink transmission at time t 3. When uplink transmission is performed at the time t3, a band uplink transmission switch needs to be performed, and the preparation time is required for the switch scene. Assuming that the start time of the preparation time is start_time0 (i.e., the RF configuration parameters of band-3 are started to be updated), the time between start_time0 and t3 is not less than the sum of a_preparation_time and the band switch time.

It should be noted that, if the a_preparation_time includes the band switch time, the uplink scheduling constraint may be described as: the time between start_time0 and t3 is not less than a_preparation_time.

The uplink scheduling constraint may also be described as: the time between start_time0 and t2 is not less than a_preparation_time, where t2 is the handoff start time of the band to be transmitted.

Condition 2: the preparation time is a_preparation_time, and the receiving time of the scheduling signaling is t0, so that the uplink sending time of the second uplink transmission is not earlier than:

the time length (a_preparation_time) +dci parsing time (dci_decoding_time) +the band switching time (switching-period) of the receiving time (t 0) +the preparation time of the scheduling signaling.

As shown in fig. 7, the terminal detects the scheduling signaling transmitted by the base station at time t0 and instructs uplink transmission at time t 3. When uplink transmission is performed at the time t3, a band uplink transmission switch needs to be performed, and the preparation time is required for the switch scene. The time between t0 and t3 is not less than:

t0+a_prepare_time+DCI_decoding_time+switching-period。

alternatively, if the a_preparation_time contains a band switch time, the uplink scheduling constraint may be described as: the time between start_time0 and t3 is not less than a_preparation_time+dci_decoding_time.

Alternatively, if the time t0 to t3 determined by the current protocol is not less than current-process-time. When the band switch occurs requiring a preparation time (a_preparation_time), then the time between t0 and t3 is not less than:

max (t0+a_preparation_time+dci_decoding_time+switching-period), max () represents the maximum value.

If a_preparation_time contains a band switch time, the uplink scheduling constraint can be described as: the time between start_time0 and t3 is not less than a_preparation_time+dci_decoding_time.

When the base station schedules the terminal to transmit an uplink transmission, a preparation time is also required, which is called a first uplink transmission preparation time (current-process-time) or a first uplink preparation time. The first uplink preparation time and the preparation time in the embodiment of the present application are not less than t0+a_preparation_time+current-process-time when the UE is serial (i.e. cannot execute simultaneously), and the time between t0 and t 2.

In the embodiment of the application, the terminal identifies a switching scene requiring the preparation time and determines a switching band pair of new uplink transmission; and determining the duration a_preparation_time and the starting time start of the preparation time. And determining a switching condition and/or a limiting condition of uplink scheduling according to the a_preparation_time and the start, which is beneficial to more efficient execution of uplink switching of multiple wavebands and improves switching efficiency.

As shown in fig. 8, the embodiment of the present application further provides a band switching processing method, which is applied to a network side device, and includes:

step 801, determining preparation time information for the terminal to perform band switching when the number of the bands is greater than the number of band configuration information which can be stored by the terminal by the network side equipment;

in this embodiment, the number of band configuration information that can be stored by the terminal may be reported by the terminal to the network side device. The number of bands refers to the number of supported handover 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 wave bands supported by the terminal for switching are band-1, band-2 and band-3, and the terminal only supports to store 2 wave band configuration information; alternatively, the bands supported by the terminal for handover are band-1, band-2, band-3 and band-4, and the terminal supports storing only 2 or 3 band configuration information.

Step 802, the network side device determines a switching condition of the band switching according to the preparation time information, and/or determines an uplink scheduling constraint condition after the band switching is completed.

In this embodiment, after determining the preparation time information, the network side device determines a handover condition and/or an uplink scheduling constraint condition in a case where the number of bands is greater than the number of band configuration information that can be stored by the terminal, where the network side device meets the uplink scheduling constraint condition expected by the terminal when scheduling uplink transmission. For example: in the switching of 4 wave bands, aiming at the situation that a terminal only supports to store 2 or 3 wave band configuration information, determining the limiting condition of uplink scheduling after band switching; in the 3-band switching, the limiting condition of uplink scheduling after band switching is determined for the case that the terminal only supports storing 2 band configuration information.

According to the embodiment of the application, the network side equipment determines the band switching preparation time information under the condition that the number of the bands is larger than the number of the band configuration information which can be stored by the terminal, and determines the switching conditions and/or the uplink scheduling limit conditions of the band switching according to the preparation time information, and when the network side equipment schedules the uplink transmission of the terminal, the uplink scheduling limit conditions are met, so that the method is beneficial to more efficient execution of the uplink switching of multiple bands and improves the switching efficiency.

In this embodiment, the first uplink transmission is an original uplink transmission scheduled by the network side device, and the second uplink transmission is a next uplink transmission of the first uplink transmission scheduled by the network side device, that is, the first uplink transmission is an uplink transmission performed by a band in which the terminal has stored band configuration information, and the second uplink transmission has at least band configuration information of one band that is not stored. For example: the current wave bands for executing the sending switch are band-1 and band-2, namely the first uplink transmission is carried out on the band-1 and band-2; the base station schedules the data transmission on the band-3, and the second uplink transmission is performed on the band-3; if the terminal can only store 2 band configuration information, deleting the stored band configuration information of band-1 or the stored band configuration information of band-2, replacing the band configuration information with the band configuration information of band-3, and if the band configuration information of band-2 is deleted, storing the band configuration information of band-1 and the band configuration information of band-3 by the terminal, wherein band-1 and band-3 can be used as a switching band pair of the second uplink transmission.

And when the sum of the wave band number corresponding to the first uplink transmission and the wave band number corresponding to the second uplink transmission is larger than the wave band configuration information number which can be stored by the terminal, the preparation time is needed for the switching scene. The network side device further determines a duration (a_preparation_time) and a start time (start) of the preparation time required for the switching scenario.

As an alternative embodiment, the method further comprises:

and/or receiving second capability information sent by the terminal, wherein the second capability information indicates a condition that the preparation time is required for performing band switching.

The terminal can also report the condition requiring the preparation time to the network side equipment, so that the network side equipment can be consistent with the understanding of the terminal on the switching process.

For example: the current sending switch (i.e. the first uplink transmission) is a first band and a second band, when the next uplink transmission (i.e. the second uplink transmission) is a third band, the number of bands is 3, the terminal can store 2 band configuration information, and the number of bands is greater than the number of band configuration information that the terminal can store. The method comprises the steps of carrying out a first treatment on the surface of the In this scenario, memories M1 and M2 store first band and second band configuration information, respectively. When the scheduling signaling indicates that the next uplink transmission is switched to the third band, the radio frequency configuration information of the third band needs to be loaded by using M1 or M2, and thus the preparation time is required.

Scenario 2-1: if the wave bands corresponding to the first uplink transmission are a first wave band and a second wave band, the wave bands corresponding to the second uplink transmission are a fourth wave band, the number of wave band configuration information which can be stored by the terminal is three, and the terminal already stores the configuration information of the first wave band, the second wave band and the third wave band, then the number of wave bands is determined to be larger than the number of wave band configuration information which can be stored by the terminal.

Optionally, the method further comprises:

In this embodiment, the network side device may configure the terminal with the handover band pair of the second uplink transmission. And the switching carrier pair corresponding to the second uplink transmission is a new band-pair obtained after the switching carrier pair of the first uplink transmission is replaced. In the uplink transmission switching, if there is no new uplink transmission (i.e. the second uplink transmission) corresponding band configuration information in the band configuration information stored in the terminal, the band radio frequency configuration parameters need to be loaded, and the radio frequency configuration parameters of the band which are stored currently are deleted. After replacing the corresponding band configuration information, a new handover band pair is formed at the terminal,

1) And the wave band which is not allowed to be replaced in the wave band corresponding to the first uplink transmission.

And the network side equipment can indicate the band parameters which are not allowed to be deleted or replaced in the band of the first uplink transmission through the indication information, and the corresponding band is not allowed to be deleted or replaced.

2) And allowing the replaced wave band in the wave band corresponding to the first uplink transmission.

The network side device can indicate the deleted or replaced wave band parameters in the wave band of the first uplink transmission through the indication information, and the corresponding wave band is deleted or replaced.

3) The second uplink transmission switching band pair comprises 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 switch band pair corresponding to the second uplink transmission for the terminal.

The specific implementation process of configuring the second uplink transmission switching band pair for the terminal by the network side device through the indication information is referred to the above embodiment of the method applied to the terminal, and will not be described herein.

Optionally, the network side device may determine the handover band pair of the second uplink transmission based on a predefined rule, including:

Specifically, if the ending time or the starting time of each band corresponding to the first uplink transmission is the same, determining that the band of 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.

Or,

mode 1: and if the wave bands corresponding to the second uplink transmission are different from the wave bands corresponding to the first uplink transmission, and the number of the wave bands corresponding to the second uplink transmission is the same as that of the wave bands corresponding to the first uplink transmission, determining that the wave bands corresponding to the second uplink transmission are the switching wave band pairs.

Specifically, if the ending time or the starting time of each band corresponding to the first uplink transmission is the same, determining a band of a second target number and a band corresponding to the second uplink transmission as the switching band pair;

1) The earliest start time for determining the preparation time is: the first uplink transmission is replaced by a first transmission start time of a first symbol on a band.

Assuming that the UE is ready to store band C band configuration information instead, the start time of the preparation time may be described as: the start time of the first symbol transmitted on the bandC minus the "band switch time", i.e. relative to 1), is advanced by one band switch time.

As an alternative embodiment, the switching condition includes:

As an optional embodiment, the uplink scheduling constraint includes:

or,

In this embodiment, when the network side device sends the scheduling signaling DCI at a certain time (e.g., t 0), the terminal needs to perform detection of the scheduling signaling and signaling parsing. This procedure requires a processing time (i.e., DCI parsing time dci_decoding_time), and the corresponding requirement is to satisfy the uplink scheduling constraint.

start_time0+a_prepare_time+switching-period。

t0+a_prepare_time+DCI_decoding_time+switching-period。

The above embodiments are described with respect to the band switching processing method of the present application, and the following embodiments will further describe a corresponding device with reference to the accompanying drawings.

Specifically, as shown in fig. 9, an embodiment of the present application provides a band switching processing apparatus 900, which is applied to a terminal, and includes:

a first determining unit 910, configured to determine preparation time information for performing band switching when the number of bands is greater than the number of band configuration information that can be stored by the terminal;

a second determining unit 920, configured to determine a switching condition of the band switching according to the preparation time information, and/or determine an uplink scheduling constraint condition after the band switching is completed.

Optionally, the first determining unit includes:

a first determining subunit, configured to determine that the preparation time is required for executing 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 by the terminal;

and the second determination subunit is used for determining the duration of the preparation time and the starting time of the preparation time.

Optionally, the apparatus further includes:

the first sending unit is used for sending first capability information to the network side equipment; the first capability information comprises the quantity of band configuration information which can be stored by the terminal;

and/or the number of the groups of groups,

and the second sending unit is used for sending second capability information to the network side equipment, wherein the second capability information indicates the condition requiring the preparation time.

Optionally, the apparatus further includes:

a fifth determining unit configured to determine a handover band pair for performing the second uplink transmission in the following manner;

Optionally, the second determining subunit is specifically configured to:

Optionally, the second determining unit is specifically configured to:

Or,

It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiment applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

Specifically, as shown in fig. 10, an embodiment of the present application provides a band switching processing apparatus 1000, applied to a network side device, including:

a third determining unit 1010, configured to determine preparation time information for performing band switching by the terminal when the number of bands is greater than the number of band configuration information that can be stored by the terminal;

a fourth determining unit 1020, configured to determine a switching condition of the band switching according to the preparation time information, and/or determine an uplink scheduling constraint condition after the band switching is completed.

Optionally, the third determining unit includes:

a third determining subunit, configured to determine that the preparation time is required for executing 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 by the terminal;

And a fourth determining subunit, configured to determine a duration of the preparation time and a start time of the preparation time.

Optionally, the apparatus further includes:

a first receiving unit, configured to receive first capability information sent by the terminal, where the first capability information includes a number of band configuration information that can be stored by the terminal;

and/or the number of the groups of groups,

and a second receiving unit, configured to receive second capability information sent by the terminal, where the second capability information indicates a condition requiring a preparation time.

Optionally, the apparatus further includes:

and the third sending unit is used for sending indication information to the terminal, wherein the indication information is used for determining the switching band pair for executing the second uplink transmission by the terminal.

Optionally, the switching condition includes:

Optionally, the uplink scheduling constraint includes:

or,

It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the method embodiment applied to the network side device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

As shown in fig. 11, an embodiment of the present application further provides a band switching processing apparatus, which is applied to a terminal, and includes: memory 1120, transceiver 1100, processor 1110; wherein the memory 1120 is used for storing a computer program; a transceiver 1100 for receiving and transmitting data under the control of the processor 1110; a processor 1110 for reading the computer program in the memory and performing the following operations:

determining preparation time information for performing band switching under the condition that the number of the bands is larger than the number of the band configuration information which can be stored by the terminal;

Optionally, the transceiver is configured to:

and/or the number of the groups of groups,

and sending second capability information to the network side equipment, wherein the second capability information indicates the condition requiring the preparation time.

Optionally, the switching condition includes:

Optionally, the uplink scheduling constraint includes:

or,

Wherein in fig. 11, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 1110 and various circuits of memory represented by memory 1120, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1100 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 1130 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1110 in performing operations.

Alternatively, the processor 1110 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), which may also employ a multi-core architecture.

The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.

As shown in fig. 12, an embodiment of the present application further provides a band switching processing apparatus, which is applied to a network side device, and includes: memory 1220, transceiver 1200, processor 1210; wherein the memory 1220 is used for storing a computer program; a transceiver 1200 for receiving and transmitting data under the control of the processor 1210; a processor 1210 for reading the computer program in the memory and performing the following operations:

Determining the preparation time information of the terminal for band switching under the condition that the number of the bands is larger than the number of the band configuration information which can be stored by the terminal;

Optionally, the transceiver is configured to:

and/or the number of the groups of groups,

and receiving second capability information sent by the terminal, wherein the second capability information indicates a condition requiring preparation time.

Optionally, the transceiver is configured to:

Optionally, the switching condition includes:

Optionally, the uplink scheduling constraint includes:

or,

Wherein in fig. 12, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 1210 and various circuits of memory represented by memory 1220, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1200 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over 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 in performing operations.

Processor 1210 may be a Central Processing Unit (CPU), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or complex programmable logic device (Complex Programmable Logic Device, CPLD), and may also employ a multi-core architecture.

In addition, the specific embodiment of the present application further provides a processor readable storage medium, on which a computer program is stored, where the program when executed by a processor implements the steps of the above-mentioned band switching processing method, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein. The readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), etc.

It should be noted that the technical solution provided in the embodiments of the present application may be applicable to various systems, especially a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evolved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiments of the present application 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 device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network side device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmission can be performed between the network side device and the terminal device by using one or more antennas, and the MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flowchart and/or block of the flowchart illustrations and/or block diagrams, and combinations of flowcharts and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A band switching processing method, characterized by comprising:

2. The method according to claim 1, wherein the determining the preparation time information for performing the band switching in the case that the number of bands is greater than the number of band configuration information that the terminal can store, comprises:

3. The method of claim 2, wherein the number of bands is determined to be greater than the number of band configuration information that the terminal is capable of storing by at least one of:

If the wave bands corresponding to the first uplink transmission are a first wave band and a second wave band, the wave bands corresponding to the second uplink transmission are a third wave band and a fourth wave band, and the number of the wave band configuration information which can be stored by the terminal is two, determining that the number of the wave bands is larger than the number of the wave band configuration information which can be stored by the terminal;

4. The method according to claim 1, wherein the method further comprises:

transmitting first capability information to network side equipment; the first capability information comprises the quantity of band configuration information which can be stored by the terminal; and/or the number of the groups of groups,

5. The method according to claim 2, wherein the method further comprises:

6. The method of claim 5, wherein the indication information or the predefined rule is used to indicate one of:

7. The method of claim 6, wherein the predefined rule indicates a band of the bands of the first uplink transmission that is allowed to be replaced by one of:

8. The method according to claim 7, wherein determining the band allowed to be replaced based on the end time and/or the start time of the corresponding band of the first uplink transmission comprises:

9. The method of claim 6, wherein the predefined rule indicates a handover band pair for the second uplink transmission by one of:

10. The method according to claim 9, wherein determining the handover band pair according to an end time and/or a start time of the band corresponding to the first uplink transmission comprises:

11. The method of claim 2, wherein the determining the duration and start time of the preparation time comprises:

12. The method of claim 11, wherein the determining the earliest start time of the preparation time based on the symbol transmission time on the band in which the first uplink transmission is replaced comprises one of:

13. The method of claim 1, wherein the handover condition comprises:

14. The method of claim 1, wherein the uplink scheduling constraint comprises:

or,

15. A band switching processing method, characterized by comprising:

16. The method according to claim 15, wherein the determining the preparation time information for performing the band switching in the case that the number of bands is greater than the number of band configuration information that the terminal can store, comprises:

17. The method of claim 15, wherein the method further comprises:

and/or the number of the groups of groups,

18. The method of claim 16, wherein the number of bands is determined to be greater than the number of band configuration information that the terminal is capable of storing by at least one of:

19. The method of claim 16, wherein the method further comprises:

20. The method of claim 19, wherein the indication information is used to indicate one of:

21. The method of claim 16, wherein the determining the duration and start time of the preparation time comprises:

22. The method of claim 16, wherein the handover condition comprises:

23. The method of claim 16, wherein the uplink scheduling constraint comprises:

or,

24. A band switching processing apparatus, comprising: memory, transceiver, processor:

25. The apparatus of claim 24, wherein the processor is configured to read the computer program in the memory and perform the following:

26. The apparatus of claim 25, wherein the processor is configured to read the computer program in the memory and perform at least one of:

27. A band switching processing apparatus, comprising: memory, transceiver, processor:

28. A band switching processing apparatus, comprising:

29. A band switching processing apparatus, comprising:

A third determining unit, configured to determine preparation time information for performing band switching by the terminal when the number of bands is greater than the number of band configuration information that can be stored by the terminal;

30. A processor readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the band switching processing method of any of claims 1 to 14 or the steps of the band switching processing method of any of claims 15 to 23.