Information indication method and device, equipment and storage medium

Abstract

The invention discloses an information indication method and device, equipment and a storage medium, and relates to the technical field of communication. The method comprises: a first device sending first information to a second device, the first information being used for indicating a time required for the first device to switch from a first frequency band group to a second frequency band group (710). According to the invention, the time required for switching the first device from the first frequency band group to the second frequency band group is provided for the second device by the first device, so that the second device can know the time required for switching the first device from the first frequency band group to the second frequency band group, time can be reasonably arranged, data transmission can be carried out, waste of time resources is avoided, and the user experience is improved. And the throughput of data transmission is improved.

Description

Information indication method, device, equipment and storage medium Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to an information indication method, apparatus, device, and storage medium. Background Art

[0002] When a terminal device switches frequency bands, it takes some time to complete the frequency band switching. During this time, the terminal device cannot transmit data.

[0003] In related art, when a terminal device switches frequency bands, there are multiple possible switching times for the terminal device to switch from a first frequency band group to a second frequency band group. The base station determines the maximum of these multiple possible switching times as the switching time for the terminal device. However, there may be multiple switching methods for switching from the first frequency band group to the second frequency band group, and not every switching method will require the switching time to reach the maximum value.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide an information indication method, apparatus, device, and storage medium. The technical solution is as follows:

[0006] According to one aspect of an embodiment of the present application, a method for indicating information is provided. The method is performed by a first device, and the method includes:

[0007] First information is sent to the second device, where the first information is used to indicate a time required for the first device to switch from the first frequency band group to the second frequency band group.

[0008] According to one aspect of an embodiment of the present application, a method for indicating information is provided, the method being performed by a second device, the method including:

[0009] First information sent by a first device is received, where the first information is used to indicate a time required for the first device to switch from a first frequency band group to a second frequency band group.

[0010] According to one aspect of an embodiment of the present application, there is provided an information indication device, the device comprising:

[0011] The sending module is configured to send first information to the second device, where the first information is used to indicate a time required for the first device to switch from the first frequency band group to the second frequency band group.

[0012] According to one aspect of an embodiment of the present application, there is provided an information indication device, the device comprising:

[0013] The receiving module is configured to receive first information sent by a first device, where the first information is used to indicate a time required for the first device to switch from a first frequency band group to a second frequency band group.

[0014] According to one aspect of an embodiment of the present application, a communication device is provided, the communication device including a processor and a memory, the memory storing a computer program, the processor executing the computer program to implement the above-mentioned information indication method. The communication device can be a first device or a second device.

[0015] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to be executed by a processor to implement the above-mentioned information indication method.

[0016] According to one aspect of an embodiment of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions, and when the chip is running, is used to implement the above-mentioned information indication method.

[0017] According to one aspect of an embodiment of the present application, a computer program product is provided, which includes computer instructions stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the above-mentioned information indication method.

[0018] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0019] The first information is provided to the second device through the first device, and the first information is used to indicate the time required for the first device to switch from the first frequency band group to the second frequency band group, so that the second device can know the time required for the first device to switch from the first frequency band group to the second frequency band group, and then can reasonably arrange time for data transmission, avoid wasting time resources, and improve data transmission throughput. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

[0021] FIG2 is a schematic diagram of frequency band coverage provided by an embodiment of the present application;

[0022] FIG3 is a schematic diagram of frequency band switching provided by an embodiment of the present application;

[0023] FIG4 is a schematic diagram of frequency band switching provided by another embodiment of the present application;

[0024] FIG5 is a schematic diagram of the switching time of frequency band switching provided by one embodiment of the present application;

[0025] FIG6 is a schematic diagram of switching time of frequency band switching provided by another embodiment of the present application;

[0026] FIG7 is a flowchart of an information indication method provided by an embodiment of the present application;

[0027] FIG8 is a schematic diagram of switching time of frequency band switching provided by another embodiment of the present application;

[0028] FIG9 is a block diagram of an information indication device provided by one embodiment of the present application;

[0029] FIG10 is a block diagram of an information indication device provided by another embodiment of the present application;

[0030] FIG11 is a schematic structural diagram of a communication device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0032] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. A person skilled in the art will appreciate that, with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0033] Please refer to Figure 1, which shows a schematic diagram of a network architecture provided by an embodiment of the present application. The network architecture may include: a core network 11, an access network 12, and a terminal device 13.

[0034] The core network 11 includes several core network devices. The functions of the core network devices are mainly to provide user connections, user management, and service carrying, and to provide an interface to the external network as a bearer network. For example, the core network of a 5G NR (New Radio) system may include devices such as an AMF (Access and Mobility Management Function) entity, a UPF (User Plane Function) entity, and an SMF (Session Management Function) entity.

[0035] The access network 12 includes several access network devices 14. The access network in the 5G NR system can be called NG-RAN (New Generation-Radio Access Network). The access network device 14 is a device deployed in the access network 12 to provide wireless communication functions for the terminal device 13. The access network device 14 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with access network device functions may be different. For example, in the 5G NR system, they are called gNodeB or gNB. With the evolution of communication technology, the name of "access network device" may change. For the convenience of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal device 13 are collectively referred to as access network devices.

[0036] The number of terminal devices 13 is usually multiple, and one or more terminal devices 13 can be distributed in the cell managed by each access network device 14. The terminal device 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of UE, mobile station (MS), etc. For the convenience of description, the devices mentioned above are collectively referred to as terminal devices, that is, the terminal devices and UEs mentioned in the embodiments of the present application can be understood as having the same meaning. The access network device 14 and the core network device communicate with each other through some kind of air technology, such as the NG interface in the 5G NR system. The access network device 14 and the terminal device 13 communicate with each other through some kind of air technology, such as the Uu interface.

[0037] Terminal devices 13 and terminal devices 13 (for example, vehicle-mounted devices and other devices (such as other vehicle-mounted devices, mobile phones, RSU (Road Side Unit), etc.)) can communicate with each other through a direct communication interface (such as PC5 (ProSe Communication5, neighbor communication fifth interface) interface). Accordingly, the communication link established based on the direct communication interface can be called a direct link or SL. SL transmission is the direct communication and data transmission between terminal devices through a side link. Unlike traditional cellular systems where communication data is received or sent through access network equipment, SL transmission has the characteristics of short delay and low overhead, and is suitable for communication between two terminal devices that are geographically close (such as vehicle-mounted devices and other peripheral devices that are geographically close). It should be noted that in Figure 1, only vehicle-to-vehicle communication in the V2X (vehicle to everything) scenario is used as an example. SL technology can be applied to scenarios where direct communication is carried out between various terminal devices. In other words, the terminal device in this application refers to any device that communicates using SL technology.

[0038] The "5G NR system" in the embodiments of this application may also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in the embodiments of this application can be applied to the 5G NR system and can also be applied to subsequent evolution systems of the 5G NR system.

[0039] Before introducing the technical solutions of this application, we first introduce and explain some of the background technologies involved in this application. The following related technologies can be combined with the technical solutions of the embodiments of this application as optional solutions, and they all fall within the scope of protection of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0040] 1. About switching transmission

[0041] At the same transmit power, as shown in Figure 2, low-frequency bands typically have wider cell coverage due to lower spatial propagation loss. In contrast, high-frequency bands, due to higher spatial propagation loss, have smaller coverage at the same transmit power, but offer greater bandwidth and capacity, and typically support uplink MIMO (Multiple-Input Multiple-Output).

[0042] Therefore, to fully leverage the wide coverage advantages of the low-frequency band and the high capacity advantages of the high-frequency band, one approach is to combine the two bands. However, the hardware of the terminal device typically only supports two concurrent links. This means that if the low-frequency band occupies one transmit link, the high-frequency band can only use the other transmit link. This approach fails to effectively leverage the advantages of the low-frequency + high-frequency band combination. Therefore, uplink switching transmission is an effective implementation method. This allows switching between the low-frequency band and the high-frequency band. For example, as shown in Figure 3, transmission occurs on the low-frequency band (Band A) at time 1 and on the high-frequency band (Band B) at time 2. Alternatively, as shown in Figure 4, a single transmission occurs on the low-frequency band (Band A) and a single transmission occurs on the high-frequency band (Band B) at time 1, and dual transmission occurs on the high-frequency band (Band B) at time 2. This approach fully leverages the wide coverage of the low-frequency band and the MIMO capabilities and large bandwidth of the high-frequency band.

[0043] 2. About switching time

[0044] In the aforementioned transmission switching scenario, the terminal device needs to adjust the operating frequency and parameter settings of its transmission link, a process that takes a certain amount of time. Therefore, when the terminal device's transmission link switches from frequency band A to frequency band B, it cannot achieve seamless switching and requires a certain adjustment time, as shown in Figure 5. This adjustment time is usually reported by the terminal device on a band pair basis. Once received, the base station will know the adjustment time required for the terminal device to switch to this band pair. During this period, the terminal device cannot effectively transmit.

[0045] When the aforementioned switching transmission scenario is extended to switching transmissions between multiple frequency bands, the timing becomes more complex. For example, at time 1, the terminal device transmits on frequency bands A and B, and then at time 2, the terminal device transmits on frequency bands C and D. Switching from frequency bands A and B to frequency bands C and D can occur in a variety of ways, such as switching from frequency band A to frequency band C and from frequency band B to frequency band D; or switching from frequency band A to frequency band D and from frequency band B to frequency band C. When the terminal device instructs the network to switch from frequency bands A and B to frequency bands C and D, the relevant technology uses the longest of the four switching times, A->C, A->D, B->C, and B->D, as the required switching time for the terminal device, as shown in Figure 6.

[0046] The advantage of the above method is its simplicity. It doesn't require knowing whether the terminal device is switching from band A to band C or band D, or from band B to band D or band C. This is because different terminal devices have different implementations. However, the problem is that when the switching times for A->C, A->D, B->C, and B->D vary significantly—for example, some are 35us, some are 140us, and some are 210us—then, even if the switching time between the two band pairs is only 35us, the 210us method will still be used. This actually results in a significant waste of switching time, as the terminal device will not be transmitting valid data during this switching time.

[0047] Please refer to Figure 7, which shows a flow chart of an information indication method provided by an embodiment of the present application. The method can be applied in the network architecture shown in Figure 1. The method includes the following step 710.

[0048] Step 710: The first device sends first information to the second device.

[0049] Correspondingly, the second device receives the first information sent by the first device.

[0050] The first information is used to indicate the time required for the first device to switch from the first frequency band group to the second frequency band group.

[0051] In some embodiments, the first device is a terminal device and the second device is a network device.

[0052] When the first device is a terminal device and the second device is a network device, the first device sends the first information to the second device via an uplink.

[0053] In some embodiments, the second device may be a network device in a TN (Terrestrial Network) (such as a cellular network), such as a base station; or a network device in an NTN (Non-Terrestrial Network), such as a satellite.

[0054] In some embodiments, the first device and the second device are two different terminal devices.

[0055] In the case where the first device is a terminal device and the second device is also a terminal device, the first device sends first information to the second device via a side link.

[0056] In some embodiments, the first information is used to indicate the time required for the first device to switch from the first frequency band group to the second frequency band group, where the time required for the first device to switch from the first frequency band group to the second frequency band group can be understood as the actual time consumed by the first device to switch from the first frequency band group to the second frequency band group. In some embodiments, the first information can be used to indicate the minimum time required for each transmission link of the first device to complete the frequency band switch, or can be used to indicate the switching time corresponding to each transmission link of the first device.

[0057] In some embodiments, when the first device switches from the first frequency band group to the second frequency band group, it is necessary to perform frequency band switching on n transmission links, where n is a positive integer.

[0058] Exemplarily, the first frequency band group is frequency band A+frequency band B, and the second frequency band group is frequency band A+frequency band A, then the first device needs to perform frequency band switching on one transmission link.

[0059] For example, if the first frequency band group consists of Band A + Band B and the second frequency band group consists of Band A + Band C, the first device may need to perform frequency band switching on one transmit link, or it may need to perform frequency band switching on two transmit links. For example, if Band B switches to Band C, the first device only needs to perform frequency band switching on one transmit link. For another example, if Band A switches to Band C and Band B switches to Band A, the first device needs to perform frequency band switching on two transmit links.

[0060] Exemplarily, the first frequency band group is frequency band A+frequency band B, and the second frequency band group is frequency band C+frequency band D, then the first device needs to perform frequency band switching on two transmission links.

[0061] In some embodiments, the first information further includes a first number, where the first number refers to the number of transmission chains of the first device after the first device switches from the first frequency band group to the second frequency band group.

[0062] The transmission chain of the first device may be one or more. Exemplarily, the first number is 1, 2, 3, 4, etc.

[0063] In some embodiments, at least one of the first frequency band group and the second frequency band group includes at least two frequency bands.

[0064] Exemplarily, the first frequency band group includes one frequency band, and the second frequency band group includes at least two frequency bands. For example, the first frequency band group includes frequency band A, and the second frequency band group includes frequency band B and frequency band C.

[0065] Exemplarily, the first frequency band group includes at least two frequency bands, and the second frequency band group also includes at least two frequency bands. For example, the first frequency band group includes frequency band A and frequency band B, and the second frequency band group includes frequency band C and frequency band D.

[0066] Exemplarily, the first frequency band group includes at least two frequency bands, and the second frequency band group includes one frequency band. For example, the first frequency band group includes frequency band A and frequency band B, and the second frequency band group includes frequency band C.

[0067] In some embodiments, the first information is carried in capability information sent by the first device to the second device, and the capability information is used to indicate the time required for switching at least one frequency band group.

[0068] In some embodiments, the at least one frequency band group switching includes switching from the first frequency band group to the second frequency band group. Of course, the at least one frequency band group switching may also include switching between other frequency band groups, such as switching from the first frequency band group to the third frequency band group, switching from the second frequency band group to the third frequency band group, etc.

[0069] Exemplarily, the capability information may include multiple first information, wherein there is one first information for indicating the time required for the first device to switch from the first frequency band group to the second frequency band group, and other first information may be used to indicate the time required for switching between other frequency band groups.

[0070] This application does not limit the capability information that carries the first information. For example, the capability information may be capability information during initial access. For example, during initial access, the first device may send the first information to the second device via RRC (Radio Resource Control) signaling, that is, carry the first information via RRC signaling.

[0071] Through the above method, the second device can learn from the capability information the time required for the first device to switch from the first frequency band group to the second frequency band group, thereby avoiding waste of time resources.

[0072] In some embodiments, the first information is sent by the first device after determining to switch from the first frequency band group to the second frequency band group. In some embodiments, the first information is sent by the first device after determining to which frequency band the n transmission chains are switched.

[0073] Exemplarily, the first frequency band group is frequency band A+frequency band B, and the second frequency band group is frequency band C+frequency band D. After determining that frequency band A is switched to frequency band D and frequency band B is switched to frequency band C, the first device sends the first information to the first device.

[0074] In some embodiments, the first information includes a first switching time, and the first switching time is determined according to the switching times corresponding to the n transmission links.

[0075] In some embodiments, the first information is sent to the second device via an RRC reconfiguration complete message (RRCreconfigurationcomplete), that is, the first information is carried in the RRC reconfiguration message.

[0076] Exemplarily, the first device may send the first information to the second device through an RRC reconfiguration completion message after the second device configures a frequency band combination such as CA (Carrier Aggregation) or DC (Dedicated Control) on the first device through an RRC reconfiguration (RRCreconfiguration) message.

[0077] Through the above method, the second device can know the exact time when the first device switches the frequency band, and then can accurately schedule the transmission link of the first device.

[0078] The technical solution provided in the embodiment of the present application provides first information to the second device through the first device, and the first information is used to indicate the time required for the first device to switch from the first frequency band group to the second frequency band group, so that the second device can know the time required for the first device to switch from the first frequency band group to the second frequency band group, and then reasonably arrange time for data transmission, avoid waste of time resources, and improve data transmission throughput.

[0079] In some embodiments, the first information may be used to indicate the minimum time required for each transmission link of the first device to complete frequency band switching, and may also be used to indicate the switching time corresponding to each transmission link of the first device.

[0080] In some embodiments, the first information includes a first switching time, and the first switching time is determined according to the switching times corresponding to the n transmission links.

[0081] In some embodiments, the first switching time is the maximum value of the switching times corresponding to the n transmission chains.

[0082] For example, the switching times corresponding to the n transmission chains are 35 us, 140 us, and 210 us, respectively, and the first switching time is 210 us.

[0083] For example, the switching times corresponding to the n transmission links are 35 us, 140 us, and 140 us respectively, and the first switching time is 140 us.

[0084] An example is given where the first device includes two transmission chains, the first frequency band group includes frequency band A+frequency band B, and the second frequency band group includes frequency band C+frequency band D.

[0085] For example, the first device switches from the first frequency band group to the second frequency band group, including two situations: transmission chain 1 switches from frequency band A to frequency band C, transmission chain 2 switches from frequency band B to frequency band D, and transmission chain 1 switches from frequency band A to frequency band D, and transmission chain 2 switches from frequency band B to frequency band C.

[0086] As shown in Figure 8, the switching time required for band A to switch to band C is switching time 1, the switching time required for band B to switch to band D is switching time 2, the switching time required for band A to switch to band D is switching time 3, and the switching time required for band B to switch to band C is switching time 4, where switching time 1 < switching time 2 = switching time 3 < switching time 4, that is, switching time 4 is the maximum value.

[0087] In the related art, the second device determines the time when the first device completes the frequency band switching based on the switching time 4.

[0088] In this embodiment, after determining the frequency bands to which each of the n transmit chains is switched, the first device sends first information to the second device. For example, after determining that frequency band A is switching to frequency band C and frequency band B is switching to frequency band D, the first device sends first information to the second device. The first information includes a first switching time. In this case, the first switching time is switching time 2.

[0089] In some embodiments, after step 710 , step 720 is further included.

[0090] Step 720: When it is determined based on the first switching time that the frequency band switching on the n transmission links has been completed, the second device sends third information to the first device, where the third information is used to schedule transmission on the n transmission links.

[0091] Correspondingly, the first device receives the third information sent by the second device.

[0092] The third information may be used to schedule transmission on the n transmission links, or may be used to schedule transmission on any one or more transmission links among the n transmission links.

[0093] After receiving the first information, the second device can schedule the first device to transmit data after the switching time indicated by the first information. Taking Figure 8 as an example, by reporting the first information, the second device can schedule data transmission for band C and band D on two transmission links after switching time 2, rather than waiting until switching time 4 to transmit data for bands C and D.

[0094] In this embodiment, because the second device can only determine that all n transmit links have completed frequency band switching based on the first switching time and cannot accurately determine whether a particular transmit link has completed frequency band switching, the first information does not need to indicate the frequency band pair information corresponding to each of the n transmit links, and the second device is unaware of the switching status of the n transmit links. The frequency band pair information corresponding to the transmit link is used to indicate the frequency band before and after the switching of the transmit link.

[0095] Through the above method, the first device indicates to the second device, via the first information, the minimum time required for each of the first device's transmit links to complete the switch. The second device does not need to wait until the maximum switch time expires, thereby avoiding waste of time resources and improving data transmission throughput to a certain extent. The maximum switch time refers to the maximum possible switch time for the first device to switch from the first frequency band group to the second frequency band group.

[0096] In some embodiments, the first information may include switching times corresponding to the n transmission links.

[0097] An example is given where the first device includes two transmission chains, the first frequency band group includes frequency band A+frequency band B, and the second frequency band group includes frequency band C+frequency band D.

[0098] As shown in Figure 7, the switching time required for band A to switch to band C is switching time 1, the switching time required for band B to switch to band D is switching time 2, the switching time required for band A to switch to band D is switching time 3, and the switching time required for band B to switch to band C is switching time 4, where switching time 1 < switching time 2 = switching time 3 < switching time 4, that is, switching time 4 is the maximum value.

[0099] When transmission link 1 switches from frequency band A to frequency band C and transmission link 2 switches from frequency band B to frequency band D, the first information may include switching time 1 and switching time 2.

[0100] When transmission link 1 switches from frequency band A to frequency band D and transmission link 2 switches from frequency band B to frequency band C, the first information may include switching time 3 and switching time 4.

[0101] In some embodiments, the first information further includes frequency band pair information corresponding to n transmission links, and the frequency band pair information corresponding to the transmission link is used to indicate the frequency band before switching and the frequency band after switching on the transmission link.

[0102] Exemplarily, the first information includes that the switching time required for the transmission link 1 to switch from frequency band A to frequency band C is switching time 1, and the switching time required for the transmission link 2 to switch from frequency band B to frequency band D is switching time 2.

[0103] Exemplarily, the first information includes that transmission link 1 is switched from frequency band A to frequency band D, and transmission link 2 is switched from frequency band B to frequency band C.

[0104] In some embodiments, a first device includes m transmission links, of which n transmission links undergo frequency band switching. The first information may include switching times corresponding to the n transmission links. A transmission link not included in the first information indicates that the transmission link has not undergone frequency band switching. m is an integer greater than or equal to n.

[0105] For example, if a first device transmits data on both transmission chain 1 and transmission chain 2 on frequency band A, and then switches to transmitting chain 1 transmitting data on frequency band A and transmitting chain 2 transmitting data on frequency band B, and transmission chain 1 does not undergo frequency band switching, the first information may not include transmission chain 1. For example, the first information may indicate the switching time required for transmission chain 2 to switch from frequency band A to frequency band B.

[0106] In some embodiments, after step 710 , step 730 is further included.

[0107] Step 730: When it is determined that the frequency band switching has been completed on the first transmission link, the second device sends second information to the first device, where the second information is used to schedule transmission on the first transmission link.

[0108] Correspondingly, the first device receives the second information sent by the second device.

[0109] In some embodiments, the completion of frequency band switching on the first transmission link is determined by the second device based on a switching time corresponding to the first transmission link.

[0110] After receiving the first information, the second device can schedule the first device to transmit data after the switching time indicated by the first information. Taking Figure 8 as an example, by reporting the first information, the second device can schedule data transmission for band C on transmit link 1 after switching time 1, and schedule data transmission for band D on transmit link 2 after switching time 2.

[0111] Through the above method, the second device can accurately schedule the n transmission links of the first device without waiting for all transmission links to complete frequency band switching before scheduling, which further saves time resources and improves data transmission throughput.

[0112] In some embodiments, the first information may include a switching time corresponding to a first transmission link among the n transmission links.

[0113] In some embodiments, the first information may include the switching time corresponding to one first transmission link, or may include the switching time corresponding to multiple first transmission links respectively, which is not limited in this application.

[0114] In some embodiments, the first information may include some of the n transmission links, or may include all of the n transmission links, which is not limited in this application.

[0115] An example is given where the first device includes two transmission chains, the first frequency band group includes frequency band A+frequency band B, and the second frequency band group includes frequency band C+frequency band D.

[0116] As shown in Figure 8, the switching time required for band A to switch to band C is switching time 1, the switching time required for band B to switch to band D is switching time 2, the switching time required for band A to switch to band D is switching time 3, and the switching time required for band B to switch to band C is switching time 4, where switching time 1 < switching time 2 = switching time 3 < switching time 4, that is, switching time 4 is the maximum value.

[0117] When transmission link 1 switches from frequency band A to frequency band C and transmission link 2 switches from frequency band B to frequency band D, the first information may include switching time 1 corresponding to transmission link 1 and switching time 2 corresponding to transmission link 2, or the first information may include switching time 1 corresponding to transmission link 1, or the first information may include switching time 2 corresponding to transmission link 2.

[0118] In some embodiments, the first information further includes frequency band pair information corresponding to the first transmission link, where the frequency band pair information corresponding to the first transmission link is used to indicate the frequency band before switching and the frequency band after switching on the first transmission link.

[0119] Exemplarily, the first information includes that the transmission link 1 is switched from frequency band A to frequency band C.

[0120] Exemplarily, the first information includes that the transmission link 2 is switched from frequency band B to frequency band D.

[0121] Exemplarily, the first information includes that transmission link 1 is switched from frequency band A to frequency band C, and transmission link 2 is switched from frequency band B to frequency band D.

[0122] In some embodiments, after step 710 , step 730 is further included.

[0123] Step 730: When it is determined that the frequency band switching has been completed on the first transmission link, the second device sends second information to the first device, where the second information is used to schedule transmission on the first transmission link.

[0124] Correspondingly, the first device receives the second information sent by the second device.

[0125] In some embodiments, the second device determines whether the frequency band switching has been completed on the first transmission link based on the switching time corresponding to the first transmission link.

[0126] Exemplarily, after receiving the first information from the first device, the second device starts timing, and determines that the frequency band switching on the first transmission link has been completed after the timing reaches the switching time of the first transmission link indicated by the first information.

[0127] Illustratively, after receiving the first information from the first device, the second device determines the time when the frequency band switching is completed on the first transmission link according to the switching time of the first transmission link indicated by the first information, and then determines whether the frequency band switching has been completed on the first transmission link.

[0128] After receiving the first information, the second device can schedule the first device to transmit data information after the switching time indicated by the first information. Taking Figure 8 as an example, if the first transmission link is transmission link 1, by reporting the first information, the second device can schedule the transmission of band C (frequency band C) data on transmission link 1 after the switching time 1; if the first transmission link is transmission link 2, by reporting the first information, the second device can schedule the transmission of band D (frequency band D) data on transmission link 2 after the switching time 2; if both transmission link 1 and transmission link 2 are the first transmission link, by reporting the first information, the second device can schedule the transmission of band C (frequency band C) data on transmission link 1 after the switching time 1, and schedule the transmission of band D (frequency band D) data on transmission link 2 after the switching time 2.

[0129] Through the above method, the second device can accurately schedule the first transmission link of the first device without waiting for all transmission links to complete frequency band switching before scheduling, which further saves time resources and improves data transmission throughput.

[0130] In some embodiments, the first information may be defined as different information depending on the content included in the first information. For example, if the first information includes the first switching time, the first information is defined as TxSwitchPeriodBandCombination (transmission switching period frequency band combination). For another example, if the first information includes the switching times corresponding to n transmission links, the first information is defined as TxSwitchPeriodPerTxChain (transmission switching period for each transmission link). For another example, if the first information includes the switching time of the first transmission link, the first information is defined as TxSwitchPeriodPerTxChain (transmission switching period for each transmission link).

[0131] For example, a first device includes two transmit chains, a first frequency band group includes frequency band A + frequency band B, and a second frequency band group includes frequency band C + frequency band D. When the first device switches from the first frequency band group to the second frequency band group, the first information may include the following:

[0132] The content of the above-mentioned first information is only an example. The first information may include part of the above-mentioned content or other content, and this application does not limit this.

[0133] The above only uses the example of the first information being used to indicate the time required for the first device to switch from the first frequency band group to the second frequency band group. In some embodiments, the first information can also be used to indicate the moment when the first device completes the switch from the first frequency band group to the second frequency band group. For example, the first information can be used to indicate the first moment, and each transmission chain of the first device completes the frequency band switch at the first moment. In some embodiments, the first moment can be the latest moment among the moments when the n transmission chains of the first device respectively complete the frequency band switch. For example, the first information can be used to indicate the second moment corresponding to each transmission chain of the first device, and the second moment corresponding to the first transmission chain refers to the moment when the frequency band switch is completed on the first transmission chain. This application will not elaborate on this method here, and the details can refer to the above embodiment.

[0134] In the above method embodiments, the technical solution of this application is described only from the perspective of the interaction between the first device and the second device. The above steps performed by the first device can be independently implemented as an information indication method on the first device side, and the above steps performed by the second device can be independently implemented as an information indication method on the second device side. In addition, the embodiments provided herein can be arbitrarily combined to form new embodiments, which are all within the scope of protection of this application.

[0135] The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0136] Please refer to Figure 9, which shows a block diagram of an information indication device provided by one embodiment of the present application. This device has the function of implementing the above-mentioned information indication method example. The function can be implemented by hardware or by hardware executing corresponding software implementation. This device can be the first device described above, or it can be provided in the first device. As shown in Figure 9, the device 900 can include: a sending module 910.

[0137] The sending module 910 is configured to send first information to the second device, where the first information is used to indicate the time required for the first device to switch from the first frequency band group to the second frequency band group.

[0138] In some embodiments, the first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer;

[0139] The first information includes a first switching time, and the first switching time is determined according to the switching times corresponding to the n transmission links.

[0140] In some embodiments, the first switching time is the maximum value of the switching times corresponding to the n transmission chains.

[0141] In some embodiments, the first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer;

[0142] The first information includes the switching times corresponding to the n transmission links respectively.

[0143] In some embodiments, the first information further includes frequency band pair information corresponding to the n transmission links, and the frequency band pair information corresponding to the transmission link is used to indicate the frequency band before switching and the frequency band after switching on the transmission link.

[0144] In some embodiments, the first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer;

[0145] The first information includes a switching time corresponding to a first transmission link among the n transmission links.

[0146] In some embodiments, the first information further includes frequency band pair information corresponding to the first transmission link, where the frequency band pair information corresponding to the first transmission link is used to indicate a frequency band before switching and a frequency band after switching on the first transmission link.

[0147] In some embodiments, as shown in FIG9 , the apparatus 900 further includes:

[0148] The receiving module 920 is used to receive second information sent by the second device, where the second information is used to schedule transmission on the first transmission link among the n transmission links, and the second information is sent by the second device when it is determined that the frequency band switching has been completed on the first transmission link.

[0149] In some embodiments, the frequency band switching on the first transmission link is completed based on the switching time corresponding to the first transmission link.

[0150] In some embodiments, the first information further includes a first number, where the first number refers to the number of transmission chains of the first device after the first device switches from the first frequency band group to the second frequency band group.

[0151] In some embodiments, at least one of the first frequency band group and the second frequency band group includes at least two frequency bands.

[0152] In some embodiments, the first device is a terminal device and the second device is a network device;

[0153] Alternatively, the first device and the second device are two different terminal devices.

[0154] In some embodiments, the first information is carried in capability information sent by the first device to the second device, and the capability information is used to indicate a time required for switching at least one frequency band group.

[0155] In some embodiments, the first information is sent by the first device after determining to switch from the first frequency band group to the second frequency band group.

[0156] Please refer to Figure 10, which shows a block diagram of an information indication device provided by another embodiment of the present application. This device has the function of implementing the above-mentioned information indication method example. The function can be implemented by hardware or by hardware executing corresponding software. This device can be the second device described above, or it can be provided in the second device. As shown in Figure 10, the device 1000 may include: a receiving module 1010.

[0157] The receiving module 1010 is configured to receive first information sent by a first device, where the first information is used to indicate a time required for the first device to switch from a first frequency band group to a second frequency band group.

[0158] In some embodiments, the first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer;

[0159] The first information includes a first switching time, and the first switching time is determined according to the switching times corresponding to the n transmission links.

[0160] In some embodiments, the first switching time is the maximum value of the switching times corresponding to the n transmission chains.

[0161] In some embodiments, the first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer;

[0162] The first information includes the switching times corresponding to the n transmission links respectively.

[0163] In some embodiments, the first information further includes frequency band pair information corresponding to the n transmission links, and the frequency band pair information corresponding to the transmission link is used to indicate the frequency band before switching and the frequency band after switching on the transmission link.

[0164] In some embodiments, the first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer;

[0165] The first information includes a switching time corresponding to a first transmission link among the n transmission links.

[0166] In some embodiments, the first information further includes frequency band pair information corresponding to the first transmission link, where the frequency band pair information corresponding to the first transmission link is used to indicate a frequency band before switching and a frequency band after switching on the first transmission link.

[0167] In some embodiments, as shown in FIG10 , the apparatus 1000 further includes:

[0168] The sending module 1020 is configured to send second information to the first device when it is determined that the frequency band switching has been completed on the first transmission link, where the second information is used to schedule transmission on the first transmission link.

[0169] In some embodiments, the frequency band switching on the first transmission link is completed based on the switching time corresponding to the first transmission link.

[0170] In some embodiments, the first information further includes a first number, where the first number refers to the number of transmission chains of the first device after the first device switches from the first frequency band group to the second frequency band group.

[0171] In some embodiments, at least one of the first frequency band group and the second frequency band group includes at least two frequency bands.

[0172] In some embodiments, the first device is a terminal device and the second device is a network device;

[0173] Alternatively, the first device and the second device are two different terminal devices.

[0174] In some embodiments, the first information is carried in capability information sent by the first device to the second device, and the capability information is used to indicate a time required for switching at least one frequency band group.

[0175] In some embodiments, the first information is sent by the first device after determining to switch from the first frequency band group to the second frequency band group.

[0176] It should be noted that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0177] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0178] Please refer to Figure 11, which shows a schematic diagram of the structure of a communication device provided in one embodiment of the present application. The communication device 1100 may include: a processor 1101, a transceiver 1102, and a memory 1103. The transceiver 1102 is used to implement the functions of the aforementioned sending module 910, receiving module 920, receiving module 1010, and sending module 1020.

[0179] The processor 1101 includes one or more processing cores, and executes various functional applications and information processing by running software programs and modules. The processor 1101 is used to execute other steps except the sending and receiving steps executed by the terminal device in the above method embodiment.

[0180] Transceiver 1102 may include a receiver and a transmitter. For example, the receiver and transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna. Transceiver 1102 is configured to perform the sending and / or receiving steps performed by the terminal device in the above method embodiment.

[0181] The memory 1103 may be connected to the processor 1101 and the transceiver 1102 .

[0182] The memory 1103 may be used to store a computer program executed by the processor, and the processor 1101 is used to execute the computer program to implement each step in the above method embodiment.

[0183] In addition, the memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0184] In an exemplary embodiment, when the communication device is a first device, the transceiver 1102 of the first device is configured to send first information to a second device, where the first information is configured to indicate a time required for the first device to switch from a first frequency band group to a second frequency band group.

[0185] In an exemplary embodiment, when the communication device is a second device, the transceiver 1102 of the second device is used to receive first information sent by the first device, where the first information is used to indicate the time required for the first device to switch from the first frequency band group to the second frequency band group.

[0186] For details not described in detail in this embodiment, please refer to the above embodiments and will not be described in detail here.

[0187] The embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is used to be executed by a processor to implement the above-mentioned information indication method. Optionally, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or optical disks, etc. Among them, random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0188] An embodiment of the present application further provides a chip, which includes a programmable logic circuit and / or program instructions, and when the chip is running, is used to implement the above-mentioned information indication method.

[0189] An embodiment of the present application also provides a computer program product, which includes a computer program stored in a computer-readable storage medium. A processor reads and executes the computer program from the computer-readable storage medium to implement the above-mentioned information indication method.

[0190] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0191] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0192] In some embodiments of the present application, "predefined" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, predefined may refer to information defined in a protocol.

[0193] In some embodiments of the present application, the "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0194] In this document, "plurality" refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0195] The term “greater than or equal to” mentioned herein may mean greater than or equal to, or greater than, and the term “less than or equal to” may mean less than or equal to, or less than.

[0196] In addition, the step numbers described in this document only illustrate a possible execution order between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order of the diagram. The embodiments of the present application are not limited to this.

[0197] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0198] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An information indication method, It is characterized in that The method is performed by a first device, and includes: First information is sent to a second device, where the first information is used to indicate a time required for the first device to switch from the first frequency band group to the second frequency band group.

2. The method according to claim 1, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes a first switching time, and the first switching time is determined according to the switching times corresponding to the n transmission links respectively.

3. The method according to claim 2, It is characterized in that The first switching time is the maximum value of the switching times corresponding to the n transmission links respectively.

4. The method according to claim 1, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes the switching times corresponding to the n transmission links respectively.

5. The method according to claim 4, It is characterized in that The first information also includes frequency band pair information corresponding to the n transmission links respectively, and the frequency band pair information corresponding to the transmission link is used to indicate the frequency band before switching and the frequency band after switching on the transmission link.

6. The method according to claim 1, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes a switching time corresponding to a first transmission link among the n transmission links.

7. The method according to claim 6, It is characterized in that The first information also includes frequency band pair information corresponding to the first transmission link, where the frequency band pair information corresponding to the first transmission link is used to indicate a frequency band before switching and a frequency band after switching on the first transmission link.

8. The method according to any one of claims 4 to 7, It is characterized in that The method further comprises: Receive second information sent by the second device, where the second information is used to schedule transmission on a first transmission link among the n transmission links, and the second information is sent by the second device when it is determined that frequency band switching has been completed on the first transmission link.

9. The method according to claim 8, It is characterized in that The frequency band switching on the first transmission link is completed based on the switching time corresponding to the first transmission link.

10. The method according to any one of claims 2 to 9, It is characterized in that The first information also includes a first quantity, where the first quantity refers to the quantity of transmission links of the first device after the first device switches from the first frequency band group to the second frequency band group.

11. The method according to any one of claims 1 to 10, It is characterized in that At least one frequency band group among the first frequency band group and the second frequency band group includes at least two frequency bands.

12. The method according to any one of claims 1 to 11, It is characterized in that The first device is a terminal device, and the second device is a network device; or, The first device and the second device are two different terminal devices.

13. The method according to any one of claims 1 to 12, It is characterized in that The first information is carried in capability information sent by the first device to the second device, and the capability information is used to indicate the time required for switching at least one frequency band group.

14. The method according to any one of claims 1 to 12, It is characterized in that The first information is sent by the first device after determining to switch from the first frequency band group to the second frequency band group.

15. A method for indicating information, It is characterized in that The method is performed by a second device, and includes: First information sent by a first device is received, where the first information is used to indicate a time required for the first device to switch from a first frequency band group to a second frequency band group.

16. The method according to claim 15, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes a first switching time, and the first switching time is determined according to the switching times corresponding to the n transmission links respectively.

17. The method according to claim 16, It is characterized in that The first switching time is the maximum value of the switching times corresponding to the n transmission links respectively.

18. The method according to claim 15, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes the switching times corresponding to the n transmission links respectively.

19. The method according to claim 18, It is characterized in that The first information also includes frequency band pair information corresponding to the n transmission links respectively, and the frequency band pair information corresponding to the transmission link is used to indicate the frequency band before switching and the frequency band after switching on the transmission link.

20. The method according to claim 15, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes a switching time corresponding to a first transmission link among the n transmission links.

21. The method according to claim 20, It is characterized in that The first information also includes frequency band pair information corresponding to the first transmission link, where the frequency band pair information corresponding to the first transmission link is used to indicate a frequency band before switching and a frequency band after switching on the first transmission link.

22. The method according to any one of claims 18 to 21, It is characterized in that The method further comprises: In a case where it is determined that the frequency band switching has been completed on the first transmission link, second information is sent to the first device, where the second information is used to schedule transmission on the first transmission link.

23. The method according to claim 22, It is characterized in that The frequency band switching on the first transmission link is completed based on the switching time corresponding to the first transmission link.

24. The method according to any one of claims 16 to 23, It is characterized in that The first information also includes a first quantity, where the first quantity refers to the quantity of transmission links of the first device after the first device switches from the first frequency band group to the second frequency band group.

25. The method according to any one of claims 15 to 24, It is characterized in that At least one frequency band group among the first frequency band group and the second frequency band group includes at least two frequency bands.

26. The method according to any one of claims 15 to 25, It is characterized in that The first device is a terminal device, and the second device is a network device; or, The first device and the second device are two different terminal devices.

27. The method according to any one of claims 15 to 26, It is characterized in that The first information is carried in capability information sent by the first device to the second device, and the capability information is used to indicate the time required for switching at least one frequency band group.

28. The method according to any one of claims 15 to 26, It is characterized in that The first information is sent by the first device after determining to switch from the first frequency band group to the second frequency band group.

29. An information indicating device, It is characterized in that The device comprises: The sending module is used to send first information to the second device, where the first information is used to indicate the time required for the first device to switch from the first frequency band group to the second frequency band group.

30. The device according to claim 29, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes a first switching time, and the first switching time is determined according to the switching times corresponding to the n transmission links respectively.

31. The device according to claim 30, It is characterized in that The first switching time is the maximum value of the switching times corresponding to the n transmission links respectively.

32. The device according to claim 29, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes the switching times corresponding to the n transmission links respectively.

33. The device according to claim 32, It is characterized in that The first information also includes frequency band pair information corresponding to the n transmission links respectively, and the frequency band pair information corresponding to the transmission link is used to indicate the frequency band before switching and the frequency band after switching on the transmission link.

34. The device according to claim 29, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes a switching time corresponding to a first transmission link among the n transmission links.

35. The device according to claim 34, It is characterized in that The first information also includes frequency band pair information corresponding to the first transmission link, where the frequency band pair information corresponding to the first transmission link is used to indicate a frequency band before switching and a frequency band after switching on the first transmission link.

36. The device according to any one of claims 32 to 35, It is characterized in that The device also includes: A receiving module is used to receive second information sent by the second device, where the second information is used to schedule transmission on the first transmission link among the n transmission links, and the second information is sent by the second device when it is determined that the frequency band switching has been completed on the first transmission link.

37. The device according to claim 36, It is characterized in that The frequency band switching on the first transmission link is completed based on the switching time corresponding to the first transmission link.

38. The device according to any one of claims 30 to 37, It is characterized in that The first information also includes a first quantity, where the first quantity refers to the quantity of transmission links of the first device after the first device switches from the first frequency band group to the second frequency band group.

39. The device according to any one of claims 29 to 38, It is characterized in that At least one frequency band group among the first frequency band group and the second frequency band group includes at least two frequency bands.

40. The device according to any one of claims 29 to 39, It is characterized in that The first device is a terminal device, and the second device is a network device; or, The first device and the second device are two different terminal devices.

41. The device according to any one of claims 29 to 40, It is characterized in that The first information is carried in capability information sent by the first device to the second device, and the capability information is used to indicate the time required for switching at least one frequency band group.

42. The device according to any one of claims 29 to 40, It is characterized in that The first information is sent by the first device after determining to switch from the first frequency band group to the second frequency band group.

43. An information indicating device, It is characterized in that The device comprises: The receiving module is used to receive first information sent by a first device, where the first information is used to indicate the time required for the first device to switch from a first frequency band group to a second frequency band group.

44. The device according to claim 43, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes a first switching time, and the first switching time is determined according to the switching times corresponding to the n transmission links respectively.

45. The device according to claim 44, It is characterized in that The first switching time is the maximum value of the switching times corresponding to the n transmission links respectively.

46. ​​The device according to claim 43, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes the switching times corresponding to the n transmission links respectively.

47. The device according to claim 46, It is characterized in that The first information also includes frequency band pair information corresponding to the n transmission links respectively, and the frequency band pair information corresponding to the transmission link is used to indicate the frequency band before switching and the frequency band after switching on the transmission link.

48. The device according to claim 43, It is characterized in that The first device switches from the first frequency band group to the second frequency band group, and needs to perform frequency band switching on n transmission links, where n is a positive integer; The first information includes a switching time corresponding to a first transmission link among the n transmission links.

49. The device according to claim 48, It is characterized in that The first information also includes frequency band pair information corresponding to the first transmission link, where the frequency band pair information corresponding to the first transmission link is used to indicate a frequency band before switching and a frequency band after switching on the first transmission link.

50. The device according to any one of claims 46 to 49, It is characterized in that The device also includes: The sending module is used to send second information to the first device when it is determined that the frequency band switching has been completed on the first transmission link, where the second information is used to schedule transmission on the first transmission link.

51. The device according to claim 50, It is characterized in that The frequency band switching on the first transmission link is completed based on the switching time corresponding to the first transmission link.

52. The device according to any one of claims 44 to 51, It is characterized in that The first information also includes a first quantity, where the first quantity refers to the quantity of transmission links of the first device after the first device switches from the first frequency band group to the second frequency band group.

53. The device according to any one of claims 43 to 52, It is characterized in that At least one frequency band group among the first frequency band group and the second frequency band group includes at least two frequency bands.

54. The device according to any one of claims 43 to 53, It is characterized in that The first device is a terminal device, and the second device is a network device; or, The first device and the second device are two different terminal devices.

55. The device according to any one of claims 43 to 54, It is characterized in that The first information is carried in capability information sent by the first device to the second device, and the capability information is used to indicate the time required for switching at least one frequency band group.

56. The device according to any one of claims 43 to 54, It is characterized in that The first information is sent by the first device after determining to switch from the first frequency band group to the second frequency band group.

57. A communication device, It is characterized in that The communication device comprises a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program to implement the method according to any one of claims 1 to 14, or to implement the method according to any one of claims 15 to 28.

58. A computer readable storage medium, It is characterized in that The storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the method according to any one of claims 1 to 14, or to implement the method according to any one of claims 15 to 28.

59. A chip, It is characterized in that The chip includes a programmable logic circuit and / or program instructions, and when the chip is running, it is used to implement the method according to any one of claims 1 to 14, or to implement the method according to any one of claims 15 to 28.

60. A computer program product, It is characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the method according to any one of claims 1 to 14, or to implement the method according to any one of claims 15 to 28.

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