Information sending method and device, communication equipment and readable storage medium

Abstract

The invention provides an information sending method and device, communication equipment and a readable storage medium, and the method comprises the steps: receiving first information sent by network equipment, and enabling the first information to be used for indicating a terminal to be switched from a first BWP to a second BWP; in a preset time range, analyzing downlink control information (DCI) sent by the network equipment by adopting a configuration parameter corresponding to the second BWP; determining that a first condition is satisfied, and switching from the second BWP to the first BWP; according to the embodiment of the invention, the terminal can autonomously judge whether the terminal needs to be switched to the original BWP or not based on the current condition, so that the terminal can still realize the BWP rollback under the condition that the BWP rollback information indicated by the network equipment is abnormally discarded or cannot be normally received, the terminal and the network equipment can continuously keep the synchronization of the BWP, and the user experience is improved. The wireless link failure caused by BWP asynchronization is avoided, the communication efficiency of the system can be effectively improved, and the robustness of the communication system is improved.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, and in particular, to a method and device for information transmission, a communication device, and a readable storage medium. Background Art

[0002] As a new generation of broadband mobile communication technology, the 5th Generation Mobile Communication Technology (5G) has a large channel bandwidth span in the 5G New Radio (NR) system. If a terminal always operates on a large bandwidth, it is not only unfavorable for saving the energy of the terminal but also wastes a large part of network resources. Therefore, it is possible to consider configuring different bandwidths on the same terminal, and these different bandwidths are called Bandwidth Parts (BWPs). Summary of the Invention

[0003] This application aims to at least solve one of the technical problems in the related art to some extent.

[0004] For this purpose, the following technical solutions are proposed:

[0005] A first aspect embodiment of this application proposes an information transmission method, including:

[0006] Receiving first information sent by a network device, where the first information is used to instruct the terminal to switch from a first Bandwidth Part (BWP) to a second BWP;

[0007] Within a preset time range, parsing the Downlink Control Information (DCI) sent by the network device using the configuration parameters corresponding to the second BWP;

[0008] Determining that a first condition is met, and switching back from the second BWP to the first BWP.

[0009] In some embodiments of the first aspect, the first condition includes at least one of the following:

[0010] No DCI is parsed within the preset time range;

[0011] The retransmission rate of the Physical Uplink Shared Channel (PUSCH) corresponding to the DCI is greater than a first threshold;

[0012] In the feedback message of the Physical Downlink Shared Channel (PDSCH) corresponding to the DCI, the proportion of Negative ACK (NACK) is greater than a second threshold.

[0013] In some embodiments of the first aspect, the first condition further includes:

[0014] Within the above-mentioned preset time range, the second information sent by the above-mentioned network device is not received;

[0015] Wherein, the above-mentioned second information is used to instruct the above-mentioned terminal to switch back from the above-mentioned second BWP to the above-mentioned first BWP.

[0016] In some embodiments of the first aspect, after the above-mentioned terminal switches back from the above-mentioned second BWP to the above-mentioned first BWP, the above-mentioned method further includes:

[0017] Parse the DCI subsequently sent by the above-mentioned network device by using the configuration parameters corresponding to the above-mentioned first BWP.

[0018] In some embodiments of the first aspect, the above-mentioned method further includes:

[0019] Determine that the second condition is satisfied, and maintain communication with the above-mentioned network device on the above-mentioned first BWP.

[0020] In some embodiments of the first aspect, the above-mentioned second condition includes at least one of the following:

[0021] Parse the DCI sent by the above-mentioned network device;

[0022] The retransmission rate of the physical uplink shared channel PUSCH corresponding to the above-mentioned DCI is less than a third threshold;

[0023] In the feedback message of the physical downlink shared channel PDSCH corresponding to the above-mentioned DCI, the proportion of the positive feedback ACK is greater than a fourth threshold.

[0024] An embodiment of the second aspect of the present application provides an information sending device, including:

[0025] A transceiver module, configured to receive first information sent by a network device, wherein the above-mentioned first information is used to instruct a terminal to switch from a first part of bandwidth BWP to a second BWP;

[0026] A processing module, configured to parse the downlink control information DCI sent by the above-mentioned network device by using the configuration parameters corresponding to the above-mentioned second BWP within a preset time range;

[0027] The above-mentioned processing module is further configured to determine that the first condition is satisfied, and switch back from the above-mentioned second BWP to the above-mentioned first BWP.

[0028] In some embodiments of the second aspect, the above-mentioned first condition includes at least one of the following:

[0029] The above-mentioned DCI is not parsed within the above-mentioned preset time range;

[0030] The retransmission rate of the physical uplink shared channel PUSCH corresponding to the above-mentioned DCI is greater than a first threshold;

[0031] In the feedback message of the physical downlink shared channel PDSCH corresponding to the above DCI, the proportion of negative feedback NACK is greater than the second threshold.

[0032] In some embodiments of the second aspect, the above first condition further includes:

[0033] Within the above preset time range, the second information sent by the above network device is not received;

[0034] Wherein, the above second information is used to instruct the above terminal to switch back from the above second BWP to the above first BWP.

[0035] In some embodiments of the second aspect, the above processing module is further configured to:

[0036] Parse the DCI subsequently sent by the above network device by using the configuration parameters corresponding to the above first BWP.

[0037] In some embodiments of the second aspect, the above processing module is further configured to:

[0038] Determine that the second condition is satisfied, and maintain communication with the above network device in the above first BWP.

[0039] In some embodiments of the second aspect, the above second condition includes at least one of the following:

[0040] The DCI sent by the above network device is parsed;

[0041] The retransmission rate of the physical uplink shared channel PUSCH corresponding to the above DCI is less than the third threshold;

[0042] In the feedback message of the physical downlink shared channel PDSCH corresponding to the above DCI, the proportion of positive feedback ACK is greater than the fourth threshold.

[0043] An embodiment of the third aspect of the present application provides a communication device, including a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor. When the processor executes the computer program, the information sending method proposed in the embodiment of the first aspect of the present application is implemented.

[0044] An embodiment of the fourth aspect of the present application provides a chip, including at least one processor and a communication interface; the communication interface is used to receive signals input to the chip or signals output from the chip, and the processor communicates with the communication interface and implements the information sending method proposed in the embodiment of the first aspect of the present application through logic circuits or by executing code instructions.

[0045] A fifth aspect embodiment of the present application provides a non-transitory computer-readable storage medium. When the instructions in the storage medium are executed by a processor of a communication device, the communication device can execute the information sending method provided in the first aspect embodiment of the present application.

[0046] In the technical solution of the present application, by receiving the first information sent by a network device, where the first information is used to instruct the terminal to switch from the first partial bandwidth BWP to the second BWP; within a preset time range, parsing the downlink control information DCI sent by the network device using the configuration parameters corresponding to the second BWP; determining that the first condition is met and switching back from the second BWP to the first BWP; enabling the terminal to autonomously determine whether to switch back to the original BWP based on the current situation, and further enabling the terminal to still achieve the BWP fallback in the case where the information indicating the BWP fallback by the network device is abnormally discarded or cannot be received normally, so that the terminal and the network device can continue to maintain the BWP synchronization, avoiding the radio link failure caused by the BWP asynchronization, and effectively improving the communication efficiency of the system and enhancing the robustness of the communication system.

[0047] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, where:

[0049] Figure 1 is a schematic flowchart of an information sending method provided by an embodiment of the present application;

[0050] Figure 2 is a schematic flowchart of another information sending method provided by an embodiment of the present application;

[0051] Figure 3 is a schematic structural diagram of an information sending device provided by an embodiment of the present application;

[0052] Figure 4 is a structural block diagram of a communication device provided by an embodiment of the present application;

[0053] Figure 5 is a schematic structural diagram of a chip provided by an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation to the present application.

[0055] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0056] In some embodiments, a device, etc. can be interpreted as physical or virtual, and its name is not limited to the name recorded in the embodiment. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc. can be mutually replaced.

[0057] In some embodiments, a "network" can be interpreted as the devices included in the network (for example, access network devices, core network devices, etc.).

[0058] In some embodiments, terms such as "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" can be used interchangeably.

[0059] In some embodiments, terms such as "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. may be used interchangeably.

[0060] In some embodiments, the terminal includes, for example, at least one of a mobile phone, a wearable device, an Internet of Things device, an automobile with communication function, a smart automobile, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, but is not limited thereto.

[0061] In some embodiments, the network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (CloudRAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0062] In some embodiments, the fifth generation mobile communication technology (5th Generation Mobile Communication Technology, 5G) is a new generation of broadband mobile communication technology. In the 5G New Radio (NR) system, the channel bandwidth span of the cell is relatively large. If the terminal always works on a relatively large bandwidth, it is not only not conducive to saving the energy of the terminal, but also wastes a large part of the network resources. Therefore, it is possible to consider configuring different bandwidths on the same terminal. These different bandwidths are called partial bandwidths (Bandwidth Part, BWP).

[0063] In some embodiments, in some cases, such as when the UE is at the edge of the base station cell coverage, or when there are serious obstacles between the UE and the base station resulting in large path loss and poor signal, the base station can instruct the UE to perform BWP switching.

[0064] In some embodiments, if the communication status is still not ideal on the new BWP after switching, the base station will consider that the UE's BWP switching has failed, and the base station will actively fall back to the original BWP. At the same time, the base station will send downlink control information (DCI) to instruct the UE to perform BWP fallback.

[0065] However, the UE may lose the DCI or discard the DCI due to misjudgment as a false alarm caused by poor signal quality. At this time, the UE is out of sync with the base station BWP (the UE is in the switched BWP, and the base station is in the original BWP), and the radio link will directly fail and disconnect.

[0066] The information sending method, electronic device, and computer-readable storage medium according to the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0067] Figure 1 The following is a schematic flowchart of an information sending method provided by an embodiment of the present application. It should be noted that the method is applied to a terminal.

[0068] As Figure 1 shown, the information sending method may include the following steps:

[0069] Step 101: Receive first information sent by a network device, where the first information is used to instruct the terminal to switch from a first bandwidth part (BWP) to a second BWP.

[0070] In the embodiments of the present application, the terminal can receive the first information sent by the network device and perform BWP switching based on the indication of the first information.

[0071] In some embodiments, the above first information is used to instruct the terminal to switch from a first BWP to a second BWP.

[0072] In some embodiments, the above first information includes an identifier of the second BWP (such as BWP ID, etc.).

[0073] In some embodiments, the above first information is included in the downlink control information (DCI).

[0074] In some embodiments, the above first information may further include an identifier of the first BWP.

[0075] In some embodiments, the terminal may be at the edge of the cell coverage of the network device.

[0076] In some embodiments, there may be severely obstructive obstacles between the terminal and the network device.

[0077] Step 102: Parse the downlink control information (DCI) sent by the network device using the configuration parameters corresponding to the second BWP within a preset time range.

[0078] In the embodiments of the present application, the terminal can parse the DCI sent by the network device using the configuration parameters corresponding to the second BWP within a preset time range after receiving the above first information.

[0079] In some embodiments, the configuration parameters corresponding to the above-mentioned second BWP are dedicated to the second BWP.

[0080] In some embodiments, the length of the above-mentioned preset time range may be specified by a protocol, may be configured by a network device, or the protocol may specify multiple lengths of time ranges and the network device indicates which length to use, and so on.

[0081] In some embodiments, the length of the above-mentioned preset time range may be, for example, 200 ms, and so on.

[0082] In some embodiments, it is possible to determine whether the above-mentioned preset time range is exceeded based on a timer.

[0083] In some embodiments, based on the configuration parameters corresponding to the above-mentioned second BWP, the terminal parses the received DCI and can obtain a corresponding parsing result.

[0084] Step 103, determine that the first condition is satisfied, and switch back from the second BWP to the first BWP.

[0085] In the embodiments of the present application, when the terminal determines that the first condition is satisfied, it can actively switch back from the above-mentioned second BWP to the first BWP.

[0086] In some embodiments, the above-mentioned first condition includes at least one of the following:

[0087] No DCI is parsed within the above-mentioned preset time range;

[0088] The retransmission rate of the physical uplink shared channel (PUSCH) corresponding to the above-mentioned DCI is greater than a first threshold;

[0089] In the feedback message of the physical downlink shared channel (PDSCH) corresponding to the above-mentioned DCI, the proportion of negative acknowledgments (NACK) is greater than a second threshold.

[0090] In some embodiments, the above-mentioned first threshold and the above-mentioned second threshold may be specified by a protocol, or may be configured by a network device, or part of them may be specified by a protocol and the other part may be configured by a network device, and so on.

[0091] In some embodiments, the terminal uses the configuration parameters corresponding to the second BWP to parse the DCI sent by the network device, and can determine whether the PUSCH corresponding to the parsed DCI is a new transmission or a retransmission. If the retransmission rate of the PUSCH corresponding to the parsed DCI exceeds the first threshold within the preset time range, it can be considered that the BWP handover fails.

[0092] In some embodiments, the terminal uses the configuration parameters corresponding to the second BWP to parse the DCI sent by the network device, and can determine whether the feedback message of the PDSCH corresponding to the parsed DCI is a positive feedback (Acknowledge, ACK) or a negative feedback NACK. If the proportion of NACK in the feedback message of the PDSCH corresponding to the parsed DCI exceeds the second threshold within the preset time range, it can be considered that the BWP handover fails.

[0093] In some embodiments, the above "retransmission rate greater than the first threshold" can also be replaced with "number of retransmissions greater than the first threshold".

[0094] In some embodiments, the above "proportion of NACK greater than the second threshold" can also be replaced with "number of NACK greater than the second threshold".

[0095] In some embodiments, the above "greater than the first threshold" can also be replaced with "greater than or equal to the first threshold".

[0096] In some embodiments, the above "greater than the second threshold" can also be replaced with "greater than or equal to the second threshold".

[0097] In some embodiments, the values of the above first threshold and the above second threshold can be the same or different.

[0098] As an example, if no DCI is parsed within the above preset time range, or the retransmission proportion of the PUSCH scheduled by the uplink DCI is more than 70%, or the proportion of feedback NACK in the PDSCH scheduled by the downlink DCI is more than 70%, it can be considered that the BWP handover fails.

[0099] In some embodiments, the above first condition further includes:

[0100] Within the above preset time range, the second information sent by the network device is not received, where the second information is used to instruct the terminal to switch back to the above first BWP.

[0101] That is, in the above embodiments, when the terminal determines that the BWP handover can be considered to have failed, even if the second information sent by the network device is not received, it can autonomously switch back to the first BWP.

[0102] In some embodiments, the above-mentioned second information includes the identifier of the first BWP (such as BWP ID, etc.).

[0103] In some embodiments, the above-mentioned second information is included in the downlink control information DCI.

[0104] In some embodiments, the above-mentioned second information may further include the identifier of the second BWP.

[0105] In some embodiments, the above-mentioned second information includes an indication of fallback.

[0106] In some embodiments, within the above-mentioned preset time range, the terminal receives the second information sent by the network device, where the second information is used to instruct the terminal to switch back to the above-mentioned first BWP, and the terminal can fallback to the first BWP before BWP switching based on the indication of the second information.

[0107] In some embodiments, after the terminal switches back from the above-mentioned second BWP to the first BWP, it can parse the DCI subsequently sent by the network device using the configuration parameters corresponding to the first BWP.

[0108] In some embodiments, the configuration parameters corresponding to the above-mentioned first BWP are dedicated to the first BWP.

[0109] In some embodiments, when the terminal determines that the second condition is satisfied, it can communicate with the network device while remaining in the above-mentioned first BWP.

[0110] In some embodiments, the above-mentioned second condition includes at least one of the following:

[0111] Parsing the DCI sent by the network device;

[0112] The retransmission rate of the physical uplink shared channel PUSCH corresponding to the DCI is less than a third threshold;

[0113] In the feedback message of the physical downlink shared channel PDSCH corresponding to the DCI, the proportion of positive feedback ACK is greater than a fourth threshold.

[0114] In some embodiments, the above-mentioned "retransmission rate less than the third threshold" can also be replaced with "number of retransmissions less than the third threshold".

[0115] In some embodiments, the above-mentioned "proportion of ACK greater than the fourth threshold" can also be replaced with "number of ACK greater than the fourth threshold".

[0116] In some embodiments, the above-mentioned "proportion of ACK greater than the fourth threshold" can also be replaced with "proportion of NACK less than or equal to a fifth threshold".

[0117] In some embodiments, the above "ACK ratio is greater than the fourth threshold" can also be replaced with "the number of NACKs is less than or equal to the fifth threshold".

[0118] In some embodiments, the above "less than the third threshold" can also be replaced with "less than or equal to the third threshold".

[0119] In some embodiments, the above "greater than the fourth threshold" can also be replaced with "greater than or equal to the fourth threshold".

[0120] In some embodiments, the above "less than or equal to the fifth threshold" can also be replaced with "less than the fifth threshold".

[0121] In some embodiments, the above third threshold, the above fourth threshold, and the above fifth threshold can be specified by a protocol, or configured by a network device, or part of them are specified by a protocol and the other part is configured by a network device, etc.

[0122] In some embodiments, the values of the above third threshold, the above fourth threshold, and the above fifth threshold can be the same or different.

[0123] As an example, after the terminal switches back to the above first BWP, it parses DCI information, and the number of PUSCH retransmissions is within 2 times or there is no retransmission, or the PDSCH feedback is ACK, then the terminal can stay on the first BWP and continue to perform NR mode services.

[0124] In some embodiments, if the terminal determines that it does not meet the above second condition after switching back to the above first BWP, a radio link failure can be considered.

[0125] In the embodiments of the present application, by receiving the first information sent by the network device, where the first information is used to instruct the terminal to switch from the first part of the bandwidth BWP to the second BWP; within a preset time range, the downlink control information DCI sent by the network device is parsed using the configuration parameters corresponding to the second BWP; it is determined that the first condition is met, and the terminal switches back from the second BWP to the first BWP; enabling the terminal to autonomously determine whether to switch back to the original BWP based on the current situation, and then enabling the terminal to still achieve BWP fallback in the case where the information indicating BWP fallback sent by the network device is abnormally discarded or cannot be received normally, so that the terminal and the network device can continue to maintain BWP synchronization, avoiding radio link failure caused by BWP out-of-synchronization, and effectively improving the communication efficiency of the system and enhancing the robustness of the communication system.

[0126] In some embodiments, "acquire", "obtain", "get", "receive", "transmit", "two-way transmission", "send and / or receive" can be replaced with each other, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, self-processing to obtain, self-implementation, and other meanings.

[0127] In some embodiments, terms such as "send", "transmit", "report", "send down", "transmit", "two-way transmission", "send and / or receive" can be replaced with each other.

[0128] Figure 2 The following is a schematic flowchart of an information sending method provided by an embodiment of the present application. It should be noted that the method is applied to a terminal.

[0129] As Figure 2 shown, the information sending method may include the following steps:

[0130] Step 201, receive the first information sent by the network device, where the first information is used to instruct the terminal to switch from the first partial bandwidth BWP to the second BWP.

[0131] In the embodiment of the present application, the terminal can receive the first information sent by the network device and perform BWP switching based on the indication of the first information.

[0132] In some embodiments, the above first information is used to instruct the terminal to switch from the first BWP to the second BWP.

[0133] In some embodiments, the above first information includes the identifier of the second BWP (such as BWP ID, etc.).

[0134] In some embodiments, the above first information is included in the downlink control information DCI.

[0135] In some embodiments, the above first information may further include the identifier of the first BWP.

[0136] In some embodiments, the terminal may be at the edge of the cell coverage of the network device.

[0137] In some embodiments, there may be severely obstructive obstacles between the terminal and the network device.

[0138] Step 202, within a preset time range, parse the downlink control information DCI sent by the network device using the configuration parameters corresponding to the second BWP.

[0139] In the embodiment of the present application, the terminal can, within a preset time range after receiving the above first information, parse the DCI sent by the network device using the configuration parameters corresponding to the second BWP.

[0140] In some embodiments, the configuration parameters corresponding to the above-mentioned second BWP are dedicated to the second BWP.

[0141] In some embodiments, the length of the above-mentioned preset time range can be specified by the protocol, or configured by the network device, or the protocol specifies the lengths of multiple time ranges and the network device indicates which length to adopt, and so on.

[0142] In some embodiments, the length of the above-mentioned preset time range can be, for example, 200 ms, and so on.

[0143] In some embodiments, it is possible to determine whether the above-mentioned preset time range is exceeded based on a timer.

[0144] In some embodiments, the terminal parses the received DCI based on the configuration parameters corresponding to the above-mentioned second BWP, and can obtain the corresponding parsing result.

[0145] Step 203, determine that the first condition is satisfied, and switch back from the second BWP to the first BWP.

[0146] In the embodiments of the present application, when the terminal determines that the first condition is satisfied, it can actively switch back from the above-mentioned second BWP to the first BWP.

[0147] In some embodiments, the above-mentioned first condition includes at least one of the following:

[0148] No DCI is parsed within the above-mentioned preset time range;

[0149] The retransmission rate of the PUSCH corresponding to the above-mentioned DCI is greater than the first threshold;

[0150] In the feedback message of the PDSCH corresponding to the above-mentioned DCI, the proportion of negative feedback NACK is greater than the second threshold.

[0151] In some embodiments, the above-mentioned first threshold and the above-mentioned second threshold can be specified by the protocol, or configured by the network device, or part of them is specified by the protocol and the other part is configured by the network device, and so on.

[0152] In some embodiments, the terminal uses the configuration parameters corresponding to the second BWP to parse the DCI sent by the network device, and can determine whether the PUSCH corresponding to the parsed DCI is a new transmission or a retransmission. Within the above-mentioned preset time range, if the retransmission rate of the PUSCH corresponding to the parsed DCI exceeds the first threshold, it can be considered that the BWP handover fails.

[0153] In some embodiments, the terminal uses the configuration parameters corresponding to the second BWP to parse the DCI sent by the network device, and can determine whether the feedback message of the PDSCH corresponding to the parsed DCI is a positive feedback ACK or a negative feedback NACK. Within the above preset time range, if the proportion of NACK in the feedback messages of the PDSCH corresponding to the parsed DCI exceeds a second threshold, it can be considered that the BWP handover fails.

[0154] In some embodiments, the above "retransmission rate is greater than a first threshold" can also be replaced with "the number of retransmissions is greater than a first threshold".

[0155] In some embodiments, the above "proportion of NACK is greater than a second threshold" can also be replaced with "the number of NACK is greater than a second threshold".

[0156] In some embodiments, the above "greater than a first threshold" can also be replaced with "greater than or equal to a first threshold".

[0157] In some embodiments, the above "greater than a second threshold" can also be replaced with "greater than or equal to a second threshold".

[0158] In some embodiments, the values of the above first threshold and the above second threshold can be the same or different.

[0159] As an example, within the above preset time range, if no DCI is parsed, or the proportion of retransmissions of the PUSCH scheduled by the parsed uplink DCI is more than 70%, or the proportion of feedback NACK in the PDSCH scheduled by the parsed downlink DCI is more than 70%, it can be considered that the BWP handover fails.

[0160] In some embodiments, the above first condition further includes:

[0161] Within the above preset time range, the second information sent by the network device is not received, where the second information is used to instruct the terminal to switch back to the above first BWP.

[0162] That is, in the above embodiments, when the terminal determines that the BWP handover can be considered to have failed, even if the second information sent by the network device is not received, it can autonomously switch back to the first BWP.

[0163] In some embodiments, the above second information includes an identifier of the first BWP (such as BWP ID, etc.).

[0164] In some embodiments, the above second information is included in the downlink control information DCI.

[0165] In some embodiments, the above second information may further include an identifier of the second BWP.

[0166] In some embodiments, the second information includes an indication of fallback.

[0167] In some embodiments, within the preset time range, the terminal receives the second information sent by the network device, where the second information is used to instruct the terminal to switch back to the first BWP. The terminal can fallback to the first BWP before BWP switching based on the indication of the second information.

[0168] Step 204, after switching back from the second BWP to the first BWP, parse the DCI subsequently sent by the network device using the configuration parameters corresponding to the first BWP.

[0169] In the embodiments of the present application, after the terminal switches back from the second BWP to the first BWP, it can parse the DCI subsequently sent by the network device using the configuration parameters corresponding to the first BWP.

[0170] In some embodiments, the configuration parameters corresponding to the first BWP are dedicated to the first BWP.

[0171] Step 205, determine that the second condition is satisfied, and maintain communication with the network device on the first BWP.

[0172] In the embodiments of the present application, when the terminal determines that the second condition is satisfied, it can maintain communication with the network device on the first BWP.

[0173] In some embodiments, the second condition includes at least one of the following:

[0174] Parse the DCI sent by the network device;

[0175] The retransmission rate of the physical uplink shared channel PUSCH corresponding to the DCI is less than a third threshold;

[0176] In the feedback message of the physical downlink shared channel PDSCH corresponding to the DCI, the proportion of positive feedback ACK is greater than a fourth threshold.

[0177] In some embodiments, the "retransmission rate is less than the third threshold" can also be replaced with "the number of retransmissions is less than the third threshold".

[0178] In some embodiments, the "proportion of ACK is greater than the fourth threshold" can also be replaced with "the number of ACKs is greater than the fourth threshold".

[0179] In some embodiments, the "proportion of ACK is greater than the fourth threshold" can also be replaced with "the proportion of NACK is less than or equal to a fifth threshold".

[0180] In some embodiments, the above "ACK ratio is greater than the fourth threshold" can also be replaced with "the number of NACKs is less than or equal to the fifth threshold".

[0181] In some embodiments, the above "less than the third threshold" can also be replaced with "less than or equal to the third threshold".

[0182] In some embodiments, the above "greater than the fourth threshold" can also be replaced with "greater than or equal to the fourth threshold".

[0183] In some embodiments, the above "less than or equal to the fifth threshold" can also be replaced with "less than the fifth threshold".

[0184] In some embodiments, the above third threshold, the above fourth threshold, and the above fifth threshold can be specified by a protocol, or configured by a network device, or part of them are specified by a protocol and the other part is configured by a network device, and so on.

[0185] In some embodiments, the values of the above third threshold, the above fourth threshold, and the above fifth threshold can be the same or different.

[0186] As an example, after the terminal switches back to the above first BWP, it parses DCI information, and the number of PUSCH retransmissions is within 2 times or there is no retransmission, or the PDSCH feedback is ACK, then the terminal can stay on the first BWP and continue to perform NR mode services, which can effectively ensure the BWP synchronization between the terminal and the network device.

[0187] In some embodiments, if the terminal determines that it does not meet the above second condition after switching back to the above first BWP, a radio link failure can be considered.

[0188] In an embodiment of the present application, by receiving first information sent by a network device, where the first information is used to instruct the terminal to switch from a first bandwidth part (BWP) to a second BWP; within a preset time range, parsing the downlink control information (DCI) sent by the network device using the configuration parameters corresponding to the second BWP; determining that a first condition is satisfied and switching back from the second BWP to the first BWP; after switching back from the second BWP to the first BWP, parsing the subsequent DCI sent by the network device using the configuration parameters corresponding to the first BWP; determining that a second condition is satisfied and maintaining communication with the network device on the first BWP; enabling the terminal to autonomously determine whether to switch back to the original BWP based on the current situation, and thus, even when the information indicating BWP fallback sent by the network device is abnormally discarded or cannot be normally received, the terminal can still implement BWP fallback, enabling the terminal and the network device to continue to maintain BWP synchronization, avoiding radio link failure caused by BWP desynchronization, effectively improving the communication efficiency of the system, and enhancing the robustness of the communication system.

[0189] To implement the above embodiment, the present application also proposes an information sending device.

[0190] Figure 3 FIG. is a schematic structural diagram of an information sending device provided in an embodiment of the present application.

[0191] As Figure 3 shown, the information sending device includes: a transceiver module 310 and a processing module 320. Among them,

[0192] The transceiver module 310 is configured to receive first information sent by a network device, where the first information is used to instruct the terminal to switch from a first bandwidth part (BWP) to a second BWP;

[0193] The processing module 320 is configured to, within a preset time range, parse the downlink control information (DCI) sent by the network device using the configuration parameters corresponding to the second BWP;

[0194] The processing module 320 is further configured to determine that a first condition is satisfied and switch back from the second BWP to the first BWP.

[0195] In some embodiments, the first condition includes at least one of the following:

[0196] The DCI is not parsed within the preset time range;

[0197] The retransmission rate of the physical uplink shared channel (PUSCH) corresponding to the DCI is greater than a first threshold;

[0198] In the feedback message of the physical downlink shared channel PDSCH corresponding to the above DCI, the proportion of negative feedback NACK is greater than the second threshold.

[0199] In some embodiments, the above first condition further includes:

[0200] Within the above preset time range, the second information sent by the above network device is not received;

[0201] Wherein, the above second information is used to instruct the above terminal to switch back from the above second BWP to the above first BWP.

[0202] In some embodiments, the above processing module 320 is further configured to:

[0203] Parse the DCI subsequently sent by the above network device by using the configuration parameters corresponding to the above first BWP.

[0204] In some embodiments, the above processing module 320 is further configured to:

[0205] Determine that the second condition is satisfied, and maintain communication with the above network device on the above first BWP.

[0206] In some embodiments, the above second condition includes at least one of the following:

[0207] Parse the DCI sent by the above network device;

[0208] The retransmission rate of the physical uplink shared channel PUSCH corresponding to the above DCI is less than the third threshold;

[0209] In the feedback message of the physical downlink shared channel PDSCH corresponding to the above DCI, the proportion of positive feedback ACK is greater than the fourth threshold.

[0210] The communication device according to the embodiment of the present application receives the first information sent by the network device, wherein the first information is used to instruct the terminal to switch from the first bandwidth part BWP to the second BWP; within the preset time range, parse the downlink control information DCI sent by the network device by using the configuration parameters corresponding to the second BWP; determine that the first condition is satisfied, and switch back from the second BWP to the first BWP; enabling the terminal to autonomously judge whether it is necessary to switch back to the original BWP based on the current situation, and further enabling the terminal to still implement the BWP fallback in the case where the information indicating the BWP fallback by the network device is abnormally discarded or cannot be normally received, so that the terminal and the network device can continue to maintain the BWP synchronization, avoid the radio link failure caused by the BWP out-of-synchronization, and can effectively improve the communication efficiency of the system and enhance the robustness of the communication system.

[0211] It should be noted that the foregoing explanation of the embodiment of the information sending method applied to the terminal also applies to the information sending device of this embodiment, and will not be elaborated here.

[0212] To implement the above embodiments, an embodiment of the present application also proposes a communication device, including a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor. Wherein, when the above-mentioned processor executes the above-mentioned computer program, it implements the foregoing Figure 1 、 Figure 2 information sending method proposed in the embodiment.

[0213] To implement the above embodiments, an embodiment of the present application also provides a chip, including at least one processor and a communication interface; the above-mentioned communication interface is used to receive signals input into the above-mentioned chip or signals output from the above-mentioned chip, and the above-mentioned processor communicates with the above-mentioned communication interface and implements the foregoing Figure 1 、 Figure 2 information sending method proposed in the embodiment.

[0214] To implement the above embodiments, an embodiment of the present application also proposes a non-transitory computer-readable storage medium. When the instructions in the storage medium are executed by the processor of the communication device, the communication device can execute the foregoing Figure 1 、 Figure 2 information sending method proposed in the embodiment.

[0215] Figure 4 is a block diagram of a communication device shown according to an exemplary embodiment. For example, the communication device 400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0216] Referring to Figure 4 , the communication device 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input / output (I / O) interface 412, a sensor component 414, and a communication component 416.

[0217] The processing component 402 generally controls the overall operation of the communication device 400, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations. The processing component 402 may include one or more processors 420 to execute instructions to complete all or part of the steps of the above method. In addition, the processing component 402 may include one or more modules to facilitate the interaction between the processing component 402 and other components. For example, the processing component 402 may include a multimedia module to facilitate the interaction between the multimedia component 408 and the processing component 402.

[0218] The memory 404 is configured to store various types of data to support the operation of the communication device 400. Examples of such data include instructions for any application or method operating on the communication device 400, contact data, phone book data, messages, pictures, videos, etc. The memory 404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0219] The power component 406 provides power to various components of the communication device 400. The power component 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the communication device 400.

[0220] The multimedia component 408 includes a screen that provides an output interface between the communication device 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of the touch or swipe actions but also detect the duration and pressure associated with the touch or swipe operations. In some embodiments, the multimedia component 408 includes a front camera and / or a rear camera. When the communication device 400 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

[0221] The audio component 410 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC) that is configured to receive external audio signals when the communication device 400 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 404 or transmitted via the communication component 416. In some embodiments, the audio component 410 further includes a speaker for outputting audio signals.

[0222] The I / O interface 412 provides an interface between the processing component 402 and a peripheral interface module, which can be a keyboard, a click wheel, buttons, etc. These buttons can include, but are not limited to: a home button, a volume button, a power button, and a lock button.

[0223] The sensor assembly 414 includes one or more sensors for providing a status assessment of various aspects of the communication device 400. For example, the sensor assembly 414 can detect the on / off state of the communication device 400, the relative positioning of components, such as the display and keypad of the communication device 400. The sensor assembly 414 can also detect a change in the position of the communication device 400 or a component of the communication device 400, the presence or absence of user contact with the communication device 400, the orientation or acceleration / deceleration of the communication device 400, and the temperature change of the communication device 400. The sensor assembly 414 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 414 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0224] The communication component 416 is configured to facilitate communication between the communication device 400 and other devices in a wired or wireless manner. The communication device 400 can access a wireless network based on communication standards, such as WiFi, 4G, or 5G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0225] In an exemplary embodiment, the communication device 400 can be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described methods.

[0226] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as the memory 404 including instructions, and the above instructions can be executed by the processor 420 of the communication device 400 to complete the above-described methods. For example, the non-transitory computer-readable storage medium can be a ROM, Random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0227] Figure 5It is a schematic structural diagram of the chip system 500 proposed by an embodiment of the present disclosure. For the case where the communication device 400 can be a chip or a chip system, reference can be made to Figure 5 the schematic structural diagram of the chip system 500 shown, but not limited thereto.

[0228] The chip system 500 includes one or more processors 501. The chip system 500 is used to execute any of the above methods.

[0229] In some embodiments, the chip system 500 further includes one or more interface circuits 502. Optionally, terms such as interface circuit, interface, and transceiver pin can be replaced with each other. In some embodiments, the chip system 500 further includes one or more memories 503 for storing data. Optionally, all or part of the memories 503 can be outside the chip system 500. Optionally, the interface circuit 502 is connected to the memory 503. The interface circuit 502 can be used to receive data from the memory 503 or other devices, and the interface circuit 502 can be used to send data to the memory 503 or other devices. For example, the interface circuit 502 can read the data stored in the memory 503 and send the data to the processor 501.

[0230] In some embodiments, the interface circuit 502 executes at least one of the communication steps such as sending and / or receiving in the above method. The interface circuit 502 executing the communication steps such as sending and / or receiving in the above method means, for example, that the interface circuit 502 executes data interaction between the processor 501, the chip system 500, the memory 503, or the transceiver device. In some embodiments, the processor 501 executes at least one of the other steps.

[0231] In various embodiments such as virtual devices, physical devices, and chips, the various modules and / or devices described can be combined or separated arbitrarily according to the situation. Optionally, some or all of the steps can also be executed by multiple modules and / or devices in cooperation, which is not limited here.

[0232] The present disclosure also proposes a storage medium. Instructions are stored on the above storage medium. When the above instructions run on the communication device 400, the communication device 400 is caused to execute any of the above methods. Optionally, the above storage medium is an electronic storage medium. Optionally, the above storage medium is a computer-readable storage medium, but not limited thereto, and it can also be a storage medium readable by other devices. Optionally, the above storage medium can be a non-transitory storage medium, but not limited thereto, and it can also be a transitory storage medium.

[0233] The present disclosure also proposes a program product. When the above program product is executed by the communication device 400, the communication device 400 is caused to execute any of the above methods. Optionally, the above program product is a computer program product.

[0234] The present disclosure also provides a computer program which, when running on a computer, causes the computer to execute any of the above methods.

[0235] Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. For each specific application, those skilled in the art can use various methods to implement the described function, but such implementation should not be construed as exceeding the scope protected by the embodiments of the present application.

[0236] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0237] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0238] Any process or method description in a flowchart or described in other ways herein can be understood to represent a module, segment, or portion of code including one or more executable instructions for implementing a customized logical function or process, and the scope of the preferred embodiments of the present application includes additional implementations, where the functions can be executed in a substantially simultaneous manner or in a reverse order according to the involved functions, rather than in the order shown or discussed, which should be understood by those skilled in the art of the embodiments of the present application.

[0239] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a definable sequence list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or used in conjunction with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpretation, or other appropriate processing as necessary, and then storing it in a computer memory.

[0240] It should be understood that various parts of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application-specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0241] Those of ordinary skill in the art of this technology can understand that all or part of the steps carried by the method of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0242] In addition, in each embodiment of the present application, each functional unit may be integrated into a processing module, may exist separately physically for each unit, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0243] The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disc, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application.

[0244] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the present application. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the following claims.

[0245] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. An information sending method, characterized in that, The method includes: Receiving first information sent by a network device, where the first information is used to instruct the terminal to switch from a first partial bandwidth BWP to a second BWP; Parsing, within a preset time range, downlink control information DCI sent by the network device by using configuration parameters corresponding to the second BWP; Determining that a first condition is met and switching back from the second BWP to the first BWP.

2. The method according to claim 1, characterized in that The first condition includes at least one of the following: Not parsing the DCI within the preset time range; The retransmission rate of a physical uplink shared channel PUSCH corresponding to the DCI being greater than a first threshold; In a feedback message of a physical downlink shared channel PDSCH corresponding to the DCI, the proportion of negative feedback NACK being greater than a second threshold.

3. The method according to claim 2, characterized in that, The first condition further includes: Not receiving second information sent by the network device within the preset time range; where the second information is used to instruct the terminal to switch back from the second BWP to the first BWP.

4. The method according to any one of claims 1-3, characterized in that, After the terminal switches back from the second BWP to the first BWP, the method further includes: Parsing DCI subsequently sent by the network device by using configuration parameters corresponding to the first BWP.

5. The method according to claim 4, characterized in that The method further includes: Determining that a second condition is met and maintaining communication with the network device on the first BWP.

6. The method according to claim 5, wherein The second condition includes at least one of the following: Parsing DCI sent by the network device; The retransmission rate of a physical uplink shared channel PUSCH corresponding to the DCI being less than a third threshold; In a feedback message of a physical downlink shared channel PDSCH corresponding to the DCI, the proportion of positive feedback ACK being greater than a fourth threshold.

7. An information sending device, characterized in that, The apparatus includes: A transceiver module, configured to receive first information sent by a network device, where the first information is used to instruct the terminal to switch from a first partial bandwidth BWP to a second BWP; A processing module, configured to parse, within a preset time range, downlink control information DCI sent by the network device by using configuration parameters corresponding to the second BWP; The processing module is further configured to determine that a first condition is met and switch back from the second BWP to the first BWP.

8. The device according to claim 7, characterized in that, The first condition includes at least one of the following: Not parsing the DCI within the preset time range; The retransmission rate of a physical uplink shared channel PUSCH corresponding to the DCI being greater than a first threshold; In a feedback message of a physical downlink shared channel PDSCH corresponding to the DCI, the proportion of negative feedback NACK being greater than a second threshold.

9. The device according to claim 8, characterized in that, The first condition further includes: Not receiving second information sent by the network device within the preset time range; where the second information is used to instruct the terminal to switch back from the second BWP to the first BWP.

10. The device according to any one of claims 7-9, characterized in that, The processing module is further configured to: Parse DCI subsequently sent by the network device by using configuration parameters corresponding to the first BWP.

11. The device according to claim 10, characterized in that, The processing module is further configured to: Determine that a second condition is met and maintain communication with the network device on the first BWP.

12. The device according to claim 11, characterized in that, The second condition includes at least one of the following: Parsing DCI sent by the network device; The retransmission rate of the Physical Uplink Shared Channel (PUSCH) corresponding to the DCI is less than a third threshold; In the feedback message of the Physical Downlink Shared Channel (PDSCH) corresponding to the DCI, the proportion of positive feedback ACK is greater than a fourth threshold.

13. A communication device, comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method described in any one of claims 1 to 6.

14. A chip, characterized in that, It includes at least one processor and a communication interface; the communication interface is used to receive signals input to the chip or signals output from the chip, and the processor communicates with the communication interface and implements the method described in any one of claims 1 - 6 through logic circuits or by executing code instructions.

15. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the communication device, the communication device is enabled to execute the method described in any one of claims 1 - 6.

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