Information processing method and terminal device

Abstract

An information processing method, a terminal device, a chip, a computer-readable storage medium, a computer program product, and a computer program, the method comprising: the terminal device receives a switching command (21); wherein the switching command is used to configure the terminal device to perform a switching operation while maintaining a connection with a source network device and a target network device; and the terminal device does not send uplink control information to the source network device (22).

Description

Technical Field

[0001] The present invention relates to the field of information processing technology, and in particular to an information processing method, terminal equipment, chip, computer-readable storage medium, computer program product and computer program. Background Art

[0002] In the prior art, when a terminal device receives a handover command, it releases the connection of the source cell and establishes a connection with the target cell through random access. In the handover process of connecting to both the source network device and the target network device, when the terminal device receives a handover command, it retains the relevant configuration of the source network device until the connection of the source network device is released; however, when the connection of the two network devices is maintained at the same time, the power consumption of the terminal device may not be reduced. Summary of the invention

[0003] To solve the above technical problems, embodiments of the present invention provide an information processing method, a terminal device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

[0004] In a first aspect, an information processing method is provided, which is applied to a terminal device, and the method includes:

[0005] The terminal device receives a switching command; wherein the switching command is used to configure the terminal device to perform a switching operation while maintaining a connection with a source network device and a target network device;

[0006] The terminal device does not send uplink control information to the source network device.

[0007] In a second aspect, a terminal device is provided, the terminal device comprising:

[0008] The communication unit receives a switching command; wherein the switching command is used to configure the terminal device to perform a switch while maintaining connections with a source network device and a target network device; and the terminal device does not send uplink control information to the source network device.

[0009] In a third aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or its implementations.

[0010] In a fourth aspect, a chip is provided for implementing the methods in the above-mentioned implementation modes.

[0011] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the method in the above-mentioned first aspect or its various implementation modes.

[0012] In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in the above-mentioned first aspect or its various implementations.

[0013] In a sixth aspect, a computer program product is provided, comprising computer program instructions, which enable a computer to execute the method in the above-mentioned first aspect or its various implementations.

[0014] In a seventh aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in the first aspect or its various implementations.

[0015] By adopting the above scheme, when the terminal device executes a switch to maintain the connection between the source network device and the target network device, the uplink control information is controlled not to be sent to the source network device. In this way, the power consumption of the terminal device can be reduced by reducing the information sent to the source network device during the switching process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a communication system architecture provided by an embodiment of the present application. Figure 1 ;

[0017] Figure 2 A schematic diagram of an information processing method provided by an embodiment of the present invention Figure 1 ;

[0018] Figure 3 A schematic diagram of a switching process;

[0019] Figure 4 A schematic diagram of an information processing method provided by an embodiment of the present invention Figure 2 ;

[0020] Figure 5 A schematic diagram of an information processing method provided by an embodiment of the present invention Figure 3 ;

[0021] Figure 6 A schematic diagram of an information processing method provided by an embodiment of the present invention Figure 4 ;

[0022] Figure 7 A schematic diagram of an information processing method provided by an embodiment of the present invention Figure 5 ;

[0023] Figure 8 A schematic diagram of the structure of a terminal device provided in an embodiment of the present invention;

[0024] Fig. 9A schematic diagram of the structure of a communication device provided in an embodiment of the present invention;

[0025] Fig.10 is a schematic block diagram of a chip provided in an embodiment of the present application;

[0026] Fig.11 This is a schematic diagram of a communication system architecture provided by an embodiment of the present application. Figure 2 . DETAILED DESCRIPTION

[0027] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present invention, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not intended to limit the embodiments of the present invention.

[0028] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

[0030] For example, the communication system 100 used in the embodiment of the present application can be as follows: Figure 1As shown. The communication system 100 may include a network device 110, which may be a device that communicates with UE120 (or referred to as a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographical area, and may communicate with a UE located in the coverage area. Optionally, the network device 110 may be a network device (Base TransceiverStation, BTS) in a GSM system or a CDMA system, or a network device (NodeB, NB) in a WCDMA system, or an evolved network device (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0031] The communication system 100 also includes at least one UE 120 located within the coverage of the network device 110. As used herein, "UE" includes but is not limited to connecting via a wired line, such as via a Public Switched Telephone Networks (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or a device of another UE configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A UE configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal".

[0032] Optionally, UE120 may perform device-to-device (D2D) communication between the UEs.

[0033] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0034] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present invention, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not intended to limit the embodiments of the present invention.

[0035] The embodiment of the present invention provides an information processing method, which is applied to a terminal device, such as Figure 2 As shown, the method includes:

[0036] Step 21: The terminal device receives a switching command; wherein the switching command is used to configure the terminal device to perform a switching operation while maintaining connections with the source network device and the target network device;

[0037] Step 22: The terminal device does not send uplink control information to the source network device.

[0038] The uplink control information includes at least one of the following: a measurement report, and a radio resource control (RRC) message uploaded via a dedicated control channel (DCCH).

[0039] In this embodiment, the network device may be a base station on the network side; the source network device may be a source base station to which the terminal device is connected, and the target network device may be a target base station. The terminal device is a device that can simultaneously maintain connection with the source network device and the target network device during switching.

[0040] First, the scenario of this embodiment is explained. Similar to the LTE system, the New Radio (NR) system supports the switching process of connected terminal devices. When a terminal device that is using network services moves from one cell to another, or due to wireless transmission service load adjustment, activation operation maintenance, equipment failure, etc., in order to ensure the continuity of communication and the quality of service, the system must transfer the communication link between the terminal device and the original cell to the new cell, that is, perform a switching process. Take the Xn interface switching process as an example to illustrate a switching process corresponding to the example. The entire switching process is divided into the following three stages, which can be seen in Figure 3 As shown, including:

[0041] Handover preparation stage: As shown in 0-5 in the figure, the target network device and the source network device process the mobile control information provided by the access and mobility management function (AMF); the terminal device performs measurement control and reporting, the source network device makes a handover decision, and then the source network device makes a handover request, management control and handover request confirmation to the target network device. Among them, the handover confirmation message contains the handover command generated by the target cell, and the source network device is not allowed to make any modifications to the handover command generated by the target network device, and directly forwards the handover command to the terminal device.

[0042] Switching execution phase: As shown in Figures 6-7, the terminal device immediately executes the switching process after receiving the switching command, which may include the radio access network (RAN) between the terminal device and the source network device, the switching terminal device disconnecting the source cell and synchronizing with the target cell and establishing a connection (such as performing random access, sending an RRC switching completion message to the target base station, etc.); SN state transfer; it may also include the active network device transmitting new data of the user plane function entity (UPF, User Plane Function), and transmitting the cached data to the target network device.

[0043] Switching completion phase: As shown in Figures 8-12, after the RAN switching is completed, the terminal device transmits user data through the target network device, and the target network device transmits user data with the UPF; then the target network device sends a path switching request to the AMF, the UPF executes the path switching, and then the AMF notifies the target network device through the source network device that the path switching is completed, the AMF sends a path switching request confirmation to the target network device, and then the target network device notifies the source network device to release the user data.

[0044] In addition, another switching scenario corresponding to this embodiment may also include the following two architectures:

[0045] Based on dual connection switching, in this case, when switching, the target network device is first added as an auxiliary node (SN), and then the SN is changed to a master node (MN) through role conversion signaling, and finally the source network device is released, thereby achieving the effect of reducing the interruption time during switching.

[0046] Another architecture is a switch that maintains the connection with the source network device and the target network device at the same time, which can be understood as a switch that establishes first and then breaks the link (eMBB, Enhanced make-before-break). The difference of this switch is that when the terminal device receives the switching command (HO command), it continues to maintain the connection with the source network device and initiates random access to the target network device until the terminal device completes the access to the target network device and then releases the connection with the source network device.

[0047] Furthermore, the following limitations are added: 1. In 0ms switching, there is no need to support simultaneous uplink (UL) physical uplink shared channel (PUSCH) transmission; 2. After receiving the first UL authorization sent by the target network device (that is, the target base station), the UL PUSCH is switched from the source network device to the target network device.

[0048] In one embodiment, the terminal device does not send uplink control information to the source network device, further comprising:

[0049] If the preset condition is met, the terminal device does not send uplink control information to the source network device. The preset condition includes: the uplink of the terminal device is switched to the target network device.

[0050] It is applicable to the case where the UL PUSCH is switched from the source network device to the target network device after receiving the first UL grant sent by the target network device (that is, the target base station).

[0051] Specifically, after the terminal device receives the switching command, the method further includes:

[0052] The terminal device accesses the target network device based on the switching command, and maintains data transmission and reception with the source network device;

[0053] If the preset condition is not met, the terminal device continues to send uplink control information to the source network device based on the configuration of the trigger report of the source network device.

[0054] That is to say, after the handover command is sent to the terminal device, the terminal device only maintains the uplink link with the source network device and does not establish an uplink with the target network device before receiving the UL authorization sent by the target network device. In this case, if the preset condition is not met, the terminal device keeps sending uplink control information to the source network device.

[0055] The configuration for triggering reporting of the source network device may include measurement configuration; correspondingly, the uplink control information at least includes a measurement report.

[0056] Among them, the uplink control information triggered and reported based on the configuration of triggering reporting can be carried through the DCCH logical channel or signaling radio bearers (SRB, Signaling Radio Bearers) 1 or SRB3.

[0057] Furthermore, when the terminal device meets a preset condition, that is, the uplink of the terminal device is switched to the target network device, in this case, the terminal device does not send uplink control information to the source network device.

[0058] That is, after receiving the UL authorization resources sent by the target network device, the terminal device disconnects the link with the source network device and switches the UL to the target network device. At this point in time, the terminal device is controlled to no longer send uplink control information to the source network device.

[0059] The uplink control information includes at least one of the following: a measurement report, a radio resource control RRC message uploaded via a dedicated control channel DCCH. Not transmitting the RRC message on the DCCH may mean not transmitting UE auxiliary information, etc., which are not exhaustive here.

[0060] As an example, the terminal device does not send uplink control information to the source network device. Possible implementation methods include the following:

[0061] The first is to delete the configuration of the trigger report of the source network device, for example, to delete the measurement configuration configured by the source network device; it should be noted that the deletion process can be performed after the UL of the terminal device is switched to the target network device. In this way, there may be an implementation method in which all the configurations for trigger reporting can be deleted after the UL of the terminal device is switched to the target network device; in another implementation method, only part of the configurations for trigger reporting can be deleted after the UL of the terminal device is switched to the target network device, for example, the configuration for trigger reporting includes configurations for multiple cells, then the configurations for some of the cells can be deleted. Take the measurement configuration included in the configuration for trigger reporting as an example for explanation, for example, the measurement configuration may include multiple measurement IDs, measurement object configurations, etc., and only the configurations corresponding to some of the measurement IDs can be deleted. Of course, there can be other implementation methods, as long as only part of the configurations can be deleted, they are within the protection scope of the above processing.

[0062] The second is to retain the configuration of the trigger report of the source network device, but control not to generate the corresponding uplink control information, or generate the uplink control information but not send it. In this way, there may be one implementation method, which can control all reports triggered by the configuration of the trigger report not to be generated or sent; in another implementation method, the uplink control information triggered by part of the configuration of the trigger report can be controlled not to be generated or sent, for example, only the uplink control information triggered by the configuration of the trigger report of some cells is not generated or sent. Take the configuration of the trigger report as the measurement configuration as an example to illustrate, the measurement report triggered in some measurement IDs can be controlled not to be generated or sent. Of course, there can be other implementation methods, as long as the scheme that can not generate or send the uplink control information triggered by only part of the configuration is within the protection scope of the above processing.

[0063] The third type is to retain the configuration of the trigger report of the source network device, but after the UL of the terminal device is switched to the target network device, the configuration of the trigger report of the source network device is controlled to be deactivated, invalidated, or suspended. In this way, it can also be ensured that the configuration of the trigger report is not executed, so as to ensure that the uplink control information will not be generated, that is, the measurement report will not be generated. In this way, there may also be a way in which, after the UL of the terminal device is switched to the target network device, all the configurations in the configuration of the trigger report of the control source network device are deactivated, invalidated, or suspended; in another embodiment, after the UL of the terminal device is switched to the target network device, only part of the configuration of the trigger report can be deactivated, invalidated, or suspended. For example, the configuration of the trigger report contains configurations for multiple cells, then the configuration for some of the cells can be deactivated, invalidated, or suspended. Take the measurement configuration contained in the configuration of the trigger report as an example for explanation, for example, the measurement configuration can contain multiple measurement (measurement) IDs, measurement object configurations, etc., and only the configurations corresponding to some of the measurement IDs can be deactivated, invalidated, or suspended. Of course, there may be other implementations, as long as they can only activate, deactivate, or suspend the use of part of the configuration, they are all within the protection scope of the above processing.

[0064] An example is given by taking the measurement configuration included in the configuration of triggering reporting of the source network device as an example. Figure 4 As shown, including:

[0065] 1. The terminal device receives a switching command, which is used to configure the terminal device to perform dual activestack switching (that is, to maintain the connection between the target network device and the original network device, or to perform eMBB switching); at this time, the terminal device maintains the measurement configuration of the source network device, and continues to perform corresponding RRM measurements based on the configuration of the source network device;

[0066] 2. Start the random access process to the target network device;

[0067] 3. If, based on the measurement configuration configured by the source network device, it is determined that the measurement event is met and the measurement report is triggered, the terminal device generates a measurement report and sends the measurement report to the source network device;

[0068] 4. The UL of the terminal device is switched to the target network device; at this time, the terminal device stops sending uplink data carried by PUSCH to the source cell, and the terminal device does not execute the measurement configuration of the source network device, or does not generate a measurement report, or does not send a measurement report; at the same time, the terminal device stops any RRC message uploaded using SRB1 / 2 / 3 (i.e., DCCH channel), such as UE Assistance Information message, etc. The figure shows a situation where the measurement report is triggered based on the measurement configuration configured by the source network device, but the measurement report is not sent to the source network device.

[0069] In one embodiment, after receiving the switching command, the terminal device deletes the configuration of triggering reporting of the source network device.

[0070] That is, once the switching command is received, the trigger reporting configuration of the source network device is deleted, for example, it may include measurement configuration, etc. In this way, since these configurations are deleted, the terminal device will no longer send relevant uplink control information to the source network device based on such configuration. For example, sending a measurement report can be avoided.

[0071] It should be noted that the uplink control information triggered for reporting based on the configuration of trigger reporting can be carried through a DCCH logical channel or a signaling radio bearer (SRB, Signaling Radio Bearers) 1 or SRB3.

[0072] In addition, the terminal device will also control not to send RRC messages to the source network device through DCCH, for example, it may include UE assistance information (UE Assistance Information) and the like.

[0073] One possible processing method is to delete all configurations that trigger reporting; in another method, only part of the configurations that trigger reporting can be deleted. For example, if the configuration that triggers reporting includes configurations for multiple cells, then the configurations for some of the cells can be deleted. Take the measurement configuration included in the configuration that triggers reporting as an example. For example, the measurement configuration may include multiple measurement IDs, measurement object configurations, etc., and only the configurations corresponding to some of the measurement IDs can be deleted.

[0074] In an example, the configuration triggering the report includes the measurement configuration. Figure 5 As shown, specifically including:

[0075] 1. The terminal device receives a switching command, which is used to configure the UE to perform dual active stack switching; then, the terminal device deletes the configuration that triggers the report, such as deleting the measurement configuration of the source network device;

[0076] The measurement configuration may include a measurement ID, a measurement object configuration, a measurement report configuration, etc. Specifically, it may be all the contents in the measurement configuration variables maintained in the terminal device.

[0077] An example of a variable in a measurement configuration is shown below:

[0078]

[0079] 2. The terminal device starts to initiate a random access process to the target network device.

[0080] During this process, the terminal device maintains data transmission and reception with the source network device while accessing the target network device. Since the configuration that triggers the report, such as the measurement configuration, is deleted, the terminal device will not perform RRM measurement and report the corresponding measurement report.

[0081] At the same time, during the switching process, the terminal device also needs to control and stop any RRC messages uploaded using SRB1 / 2 / 3 (ie, DCCH channel), such as UE Assistance Information.

[0082] Finally, when the above solution is adopted, since the trigger reporting configuration of the source network device is deleted, if a switching failure occurs, the terminal device can also perform a connection re-establishment process with the network device; the specific connection re-establishment processing will not be repeated in this embodiment.

[0083] In one embodiment, after receiving the switching command, the terminal device does not execute the trigger reporting configuration of the source network device.

[0084] Among them, the non-execution of the trigger reporting configuration of the source network device includes one of the following: controlling the trigger reporting configuration of the source network device to be invalid, suspending the use of the trigger reporting configuration of the source network device, and deactivating the trigger reporting configuration of the source network device.

[0085] In this case, the trigger reporting configuration of the source network device is not deleted, but is retained. Instead, the terminal device is controlled not to trigger reporting by deactivating it, controlling it to be temporarily unused, or controlling it to be invalid.

[0086] The uplink control information may include: measurement reports and RRC messages uploaded via DCCH.

[0087] In addition, since the trigger reporting configuration of the source network device is retained, if the terminal device fails to access the target network device, the terminal device maintains the connection with the source network device, executes the trigger reporting configuration of the source network device, and sends uplink control information to the source network device.

[0088] That is to say, when the terminal device fails to switch to the target network device, the trigger reporting configuration of the source network device can be reused, and then the corresponding uplink control information can be generated and reported according to the trigger reporting configuration of the source network device. Similarly, at this time, if the RRC message uploaded via DCCH is triggered, the RRC message can be sent to the source network device via DCCH.

[0089] Reusing the trigger reporting configuration of the source network device may include: reactivating the trigger reporting configuration of the source network device, or restarting to use the trigger reporting configuration of the source network device, or re-enabling the trigger reporting configuration of the source network device.

[0090] There may be a way that after the terminal device receives the switching command, all the configurations in the configuration of the trigger report of the control source network device are deactivated, invalidated, or suspended; in another implementation, after the terminal device receives the switching command, only part of the configuration of the trigger report can be deactivated, invalidated, or suspended. For example, if the configuration of the trigger report contains configurations for multiple cells, then the configurations for some of the cells can be deactivated, invalidated, or suspended. Take the measurement configuration contained in the configuration of the trigger report as an example for explanation. For example, the measurement configuration can contain multiple measurement IDs, measurement object configurations, etc., and only the configurations corresponding to some of the measurement IDs can be deactivated, invalidated, or suspended.

[0091] In one example, the configuration that triggers the report is the measurement configuration, for example, see Figure 6 :

[0092] 1. The terminal device receives a switching command, which is used to configure the UE to perform dual active stack switching; then the terminal device executes the measurement configuration of the source network device; for example, it can disable / suspend / deactivate some configurations, such as measurement-related configurations. The specific description of the measurement-related configurations here is the same as above and will not be repeated.

[0093] 2. The terminal device initiates a random access process to the target network device;

[0094] At this time, the terminal device maintains data transmission and reception with the source cell while accessing the target cell. Since the measurement configuration is not performed, the terminal device does not perform RRM measurement and report the corresponding measurement report;

[0095] At the same time, the terminal device will also stop uploading any RRC messages using SRB1 / 2 / 3 (ie DCCH channel), such as UE Assistance Information.

[0096] If the terminal device fails to access the target cell, that is, fails to initiate random access to the target network device, the terminal device returns to continue to maintain the connection with the source network device, and restores the configuration of the source network device, such as measurement configuration, and performs related measurements, reporting and other processing, which will not be repeated here.

[0097] In one embodiment, the processing is performed based on preset conditions. Specifically, if the preset conditions are met, the terminal device does not send uplink control information to the source network device.

[0098] The preset condition includes at least one of the following: a measurement event configured by a source network device is satisfied, triggering uploading of an RRC message via a DCCH.

[0099] Correspondingly, if the preset condition is met, the terminal device does not send uplink control information to the source network device, including at least one of the following:

[0100] If the terminal device meets the measurement event configured by the source network device, no measurement report is generated, or the measurement report is not sent to the source network device;

[0101] If the terminal device triggers uploading of RRC messages via DCCH, it stops sending RRC messages to the source network device via DCCH.

[0102] That is to say, the configuration of triggering reporting is still maintained, but the corresponding uplink control information may not be generated according to the configuration of triggering reporting, or, although the uplink control information is generated according to the configuration of triggering reporting, the generated uplink control information is controlled not to be sent to the source network device. Further, when the terminal device executes to maintain the connection with the source network device and the target network device at the same time, when the preset conditions are met, for example, when the measurement event configured by the source network device is met, it is determined not to generate the corresponding measurement report, or the measurement report is generated but the measurement report is controlled not to be sent; other situations are not exhaustive.

[0103] In one processing method, all reports triggered by the configuration that triggers reporting can be controlled not to be generated or sent; in another method, uplink control information triggered by part of the configuration that triggers reporting can be controlled not to be generated or sent, for example, only uplink control information triggered by the configuration that triggers reporting of some cells is not generated or sent. Taking the configuration that triggers reporting as measurement configuration as an example, measurement reports triggered in certain measurement IDs can be controlled not to be generated or sent.

[0104] For an example, see Figure 7 As shown, including:

[0105] 1-2. The terminal device receives a switching command, which is used to configure the UE to perform dual active stack switching; the terminal device accesses the target cell based on the switching command and maintains data transmission and reception with the source cell; and the terminal device initiates a random access process to the target network device.

[0106] At this time, the terminal device retains the measurement configuration of the source network device and performs corresponding RRM measurements based on the configuration of the source network device. If the measurement event is met, the UE does not generate a measurement report or does not send a measurement report to the source cell; if the UE triggers the sending of UE Assistance Information, the UE stops sending UE Assistance Information.

[0107] Since the trigger reporting configuration of the source network device is retained, if the terminal device fails to access the target network device, the terminal device maintains the connection with the source network device, executes the trigger reporting configuration of the source network device, and sends uplink control information to the source network device.

[0108] It can be seen that by adopting the above scheme, when the terminal device executes the switching to maintain the connection between the source network device and the target network device, it can control not to send uplink control information to the source network device. In this way, it is possible to reduce the power consumption of the terminal device by reducing the information sent to the source network device during the switching process.

[0109] An embodiment of the present invention provides a terminal device, such as Figure 8 As shown, the terminal device includes:

[0110] The communication unit 31 receives a switching command, wherein the switching command is used to configure the terminal device to perform a switching operation while maintaining connections with a source network device and a target network device; and the terminal device does not send uplink control information to the source network device.

[0111] The uplink control information includes at least one of the following: a measurement report, and a radio resource control (RRC) message uploaded via a dedicated control channel (DCCH).

[0112] In this embodiment, the network device may be a base station on the network side; the source network device may be a source base station to which the terminal device is connected, and the target network device may be a target base station. The terminal device is a device that can simultaneously maintain connection with the source network device and the target network device during switching.

[0113] In one embodiment, it is mainly applicable to the case where the UL PUSCH is switched from the source network device to the target network device after receiving the first UL grant sent by the target network device (that is, the target base station).

[0114] Specifically, the terminal device further includes: a processing unit 32, which controls the communication unit not to send uplink control information to the source network device if a preset condition is met.

[0115] Wherein, the preset condition includes: the uplink is switched to the target network device.

[0116] The communication unit 31 accesses the target network device based on the switching command and maintains data transmission and reception with the source network device; if the preset condition is not met, based on the configuration of the trigger report of the source network device, it keeps sending uplink control information to the source network device.

[0117] That is to say, after the handover command is sent to the terminal device, the terminal device only maintains the uplink link with the source network device and does not establish an uplink with the target network device before receiving the UL authorization sent by the target network device. In this case, if the preset condition is not met, the terminal device keeps sending uplink control information to the source network device.

[0118] The trigger reporting configuration of the source network device may include a measurement configuration; accordingly, the uplink control information includes at least a measurement report. The uplink control information triggered by the trigger reporting configuration may be carried by a DCCH logical channel or a signaling radio bearer (SRB, Signaling Radio Bearers) 1 or SRB3.

[0119] Furthermore, the terminal device further includes:

[0120] The processing unit 32 controls the communication unit 31 not to send uplink control information to the source network device if the uplink is switched to the target network device.

[0121] That is, after receiving the UL authorization resources sent by the target network device, the terminal device disconnects the link with the source network device and switches the UL to the target network device. At this point in time, the terminal device is controlled to no longer send uplink control information to the source network device.

[0122] The uplink control information includes at least one of the following: a measurement report, a radio resource control RRC message uploaded via a dedicated control channel DCCH. Not transmitting the RRC message on the DCCH may mean not transmitting UE auxiliary information, etc., which are not exhaustive here.

[0123] The possible implementation methods of not sending uplink control information to the source network device are as follows:

[0124] The first type is that the processing unit 32 deletes the configuration of the trigger report of the source network device, for example, deletes the measurement configuration configured by the source network device; it should be noted that the deletion process needs to be performed after the UL of the terminal device is switched to the target network device. In this way, there may be an implementation method in which all the configurations for trigger reporting can be deleted after the UL of the terminal device is switched to the target network device; in another implementation method, only part of the configurations for trigger reporting can be deleted after the UL of the terminal device is switched to the target network device, for example, the configuration for trigger reporting includes configurations for multiple cells, then the configurations for some of the cells can be deleted. Take the measurement configuration included in the configuration for trigger reporting as an example for explanation, for example, the measurement configuration may include multiple measurement IDs, measurement object configurations, etc., and only the configurations corresponding to some of the measurement IDs can be deleted.

[0125] The second type is that the processing unit 32 retains the configuration of the trigger report of the source network device, but controls not to generate the corresponding uplink control information, or generates the uplink control information but does not send it. In this way, in one possible implementation, all reports triggered by the configuration of the trigger report can be controlled not to be generated or sent; in another implementation, the uplink control information triggered by part of the configuration of the trigger report can be controlled not to be generated or sent, for example, only the uplink control information triggered by the configuration of the trigger report of some cells is not generated or sent. Taking the configuration of the trigger report as the measurement configuration as an example, the measurement report triggered in some measurement IDs can be controlled not to be generated or sent.

[0126] The third type, the processing unit 32 retains the trigger reporting configuration of the source network device, but after the UL of the terminal device is switched to the target network device, the trigger reporting configuration of the source network device is controlled to be deactivated, invalidated, or suspended. In this way, it can also be ensured that the trigger reporting configuration is not executed, so as to ensure that the uplink control information will not be generated, that is, the measurement report will not be generated. In this way, there may also be a way that after the UL of the terminal device is switched to the target network device, all the configurations in the trigger reporting configuration of the source network device are controlled to be deactivated, invalidated, or suspended; in another embodiment, after the UL of the terminal device is switched to the target network device, only part of the trigger reporting configuration can be deactivated, invalidated, or suspended. For example, the trigger reporting configuration contains configurations for multiple cells, then the configurations for some of the cells can be deactivated, invalidated, or suspended. Take the measurement configuration included in the configuration that triggers reporting as an example for explanation. For example, the measurement configuration may include multiple measurement IDs, measurement object configurations, etc., and only the configurations corresponding to some of the measurement IDs may be deactivated, invalidated, or suspended.

[0127] In one embodiment, the processing unit 32 deletes the configuration of triggering reporting of the source network device after receiving the switching command.

[0128] Once the switching command is received, the processing unit 32 deletes the trigger reporting configuration of the source network device, for example, it may include measurement configuration, etc. In this way, since these configurations are deleted, the terminal device will no longer send relevant uplink control information to the source network device based on such configurations. For example, it can avoid sending measurement reports.

[0129] It should be noted that the uplink control information triggered for reporting based on the configuration of trigger reporting can be carried through a DCCH logical channel or a signaling radio bearer (SRB, Signaling Radio Bearers) 1 or SRB3.

[0130] In addition, the processing unit 32 may also control not to send an RRC message to the source network device via the DCCH, for example, the RRC message may include UE assistance information (UE Assistance Information) and the like.

[0131] In one processing method, the processing unit 32 may delete all configurations that trigger reporting; in another method, the processing unit 32 may delete only some of the configurations that trigger reporting. For example, if the configuration that triggers reporting includes configurations for multiple cells, then the configurations for some of the cells may be deleted. Take the measurement configuration included in the configuration that triggers reporting as an example for explanation. For example, the measurement configuration may include multiple measurement IDs, measurement object configurations, etc., and only the configurations corresponding to some of the measurement IDs may be deleted.

[0132] In one embodiment, after receiving the switching command, the processing unit 32 does not execute the trigger reporting configuration of the source network device.

[0133] Among them, the non-execution of the trigger reporting configuration of the source network device includes one of the following: controlling the trigger reporting configuration of the source network device to be invalid, suspending the use of the trigger reporting configuration of the source network device, and deactivating the trigger reporting configuration of the source network device.

[0134] That is, the trigger reporting configuration of the source network device is not deleted, and the trigger reporting configuration of the source network device is retained. Instead, the terminal device is controlled not to trigger reporting by deactivating it, controlling it to be temporarily unused, or controlling it to be invalid.

[0135] The aforementioned uplink control information may include: measurement report, and RRC message uploaded via DCCH.

[0136] In addition, since the trigger reporting configuration of the source network device is retained, if the communication unit 31 fails to access the target network device, it maintains the connection with the source network device, executes the trigger reporting configuration of the source network device, and sends uplink control information to the source network device.

[0137] That is to say, when the terminal device fails to switch to the target network device, the trigger reporting configuration of the source network device can be reused, and then the corresponding uplink control information can be generated and reported according to the trigger reporting configuration of the source network device. Similarly, at this time, if the RRC message uploaded via DCCH is triggered, the RRC message can be sent to the source network device via DCCH.

[0138] Reusing the trigger reporting configuration of the source network device may include: reactivating the trigger reporting configuration of the source network device, or restarting to use the trigger reporting configuration of the source network device, or re-enabling the trigger reporting configuration of the source network device.

[0139] In one embodiment, the processing unit 32 controls all configurations in the configuration of the trigger report of the source network device to be deactivated, invalidated, or suspended after the terminal device receives the switching command; in another embodiment, the processing unit 32 can deactivate, invalidate, or suspend only part of the configuration of the trigger report after the terminal device receives the switching command. For example, if the configuration of the trigger report includes configurations for multiple cells, then the configurations for some of the cells can be deactivated, invalidated, or suspended. Take the measurement configuration included in the configuration of the trigger report as an example for explanation. For example, the measurement configuration can include multiple measurement IDs, measurement object configurations, etc., and only the configurations corresponding to some of the measurement IDs can be deactivated, invalidated, or suspended.

[0140] In one embodiment, the configuration that triggers the report will not be deleted, invalidated, etc., but only the triggered report itself will be processed. The preset condition includes at least one of the following:

[0141] The measurement event configured by the source network device is met, triggering the uploading of the RRC message via the DCCH.

[0142] Specific:

[0143] The processing unit 32 performs at least one of the following:

[0144] If the measurement event configured by the source network device is met, no measurement report is generated, or the control communication unit 31 does not send the measurement report to the source network device; if uploading of the RRC message via DCCH is triggered, the control communication unit 31 stops sending the RRC message to the source network device via DCCH.

[0145] That is, the configuration for triggering reporting is still maintained, but the corresponding uplink control information may not be generated according to the configuration for triggering reporting, or, although the uplink control information is generated according to the configuration for triggering reporting, the generated uplink control information is controlled not to be sent to the source network device.

[0146] In one processing mode, the processing unit 32 can control all reports triggered by the configuration that triggers reporting not to be generated or sent; in another mode, the processing unit 32 can control the uplink control information triggered by part of the configuration that triggers reporting not to be generated or sent, for example, only the uplink control information triggered by the configuration that triggers reporting of some cells is not generated or sent. Taking the configuration that triggers reporting as measurement configuration as an example, it is possible to control the measurement reports triggered in certain measurement IDs not to be generated or sent.

[0147] It can be seen that by adopting the above scheme, when the terminal device executes the switching to maintain the connection between the source network device and the target network device, it can control not to send uplink control information to the source network device. In this way, it is possible to reduce the power consumption of the terminal device by reducing the information sent to the source network device during the switching process.

[0148] Fig. 9 It is a schematic structural diagram of a communication device 600 provided in an embodiment of the present invention. The communication device in this embodiment may specifically be the network device or terminal device in the aforementioned embodiments. Fig. 9 The communication device 600 shown includes a processor 610. The processor 610 can call and run a computer program from a memory to implement the method in the embodiment of the present invention.

[0149] Optionally, Fig. 9 As shown, the communication device 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present invention.

[0150] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0151] Alternatively, if Fig. 9 As shown, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0152] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of the antennas may be one or more.

[0153] Optionally, the communication device 600 may specifically be a network device according to an embodiment of the present invention, and the communication device 600 may implement corresponding processes implemented by the network device in various methods according to an embodiment of the present invention, which will not be described in detail for the sake of brevity.

[0154] Optionally, the communication device 600 may specifically be a terminal device or a network device of an embodiment of the present invention, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiment of the present invention, which will not be described in detail here for the sake of brevity.

[0155] Fig.10 is a schematic structural diagram of a chip according to an embodiment of the present invention. Fig.10The chip 700 shown includes a processor 710, which can call and run a computer program from a memory to implement the method in the embodiment of the present invention.

[0156] Alternatively, if Fig.10 As shown, the chip 700 may further include a memory 720. The processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present invention.

[0157] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0158] Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0159] Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0160] Optionally, the chip can be applied to the network device in the embodiment of the present invention, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present invention, which will not be described here for the sake of brevity.

[0161] It should be understood that the chip mentioned in the embodiment of the present invention can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0162] It should be understood that the processor of the embodiment of the present invention may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit in the processor or the instruction in the form of software. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined to perform. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0163] It can be understood that the memory in the embodiment of the present invention can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0164] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiment of the present invention may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present invention is intended to include but not limited to these and any other suitable types of memory.

[0165] Fig.118 is a schematic block diagram of a communication system 800 provided in an embodiment of the present application. Fig.11 As shown, the communication system 800 includes a terminal device 810 and a network device 820 .

[0166] Among them, the terminal device 810 can be used to implement the corresponding functions implemented by the UE in the above method, and the network device 820 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0167] An embodiment of the present invention further provides a computer-readable storage medium for storing a computer program.

[0168] Optionally, the computer-readable storage medium can be applied to the network device or terminal device in the embodiments of the present invention, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present invention. For the sake of brevity, they are not repeated here.

[0169] An embodiment of the present invention further provides a computer program product, including computer program instructions.

[0170] Optionally, the computer program product can be applied to the network device or terminal device in the embodiments of the present invention, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present invention. For the sake of brevity, they are not repeated here.

[0171] An embodiment of the present invention also provides a computer program.

[0172] Optionally, the computer program may be applied to a network device or a terminal device in an embodiment of the present invention. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in each method of the embodiment of the present invention. For the sake of brevity, they are not described here.

[0173] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0174] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0175] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0176] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0177] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0178] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0179] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An information processing method, applied to a terminal device, comprising: The terminal device receives a switching command; wherein the switching command is used to configure the terminal device to perform a switching operation while maintaining a connection with a source network device and a target network device; The terminal device accesses the target network device based on the switching command, and maintains data transmission and reception with the source network device; The method further comprises: The uplink of the terminal device is switched to the target network device, and the terminal device does not send uplink control information to the source network device; or, The uplink of the terminal device is not switched to the target network device, and the terminal device keeps sending uplink control information to the source network device based on the configuration of the source network device; The method further comprises: After receiving the switching command, the terminal device does not execute the triggering and reporting configuration of the source network device; Among them, the non-execution of the trigger reporting configuration of the source network device includes one of the following: controlling the trigger reporting configuration of the source network device to be invalid, suspending the use of the trigger reporting configuration of the source network device, and deactivating the trigger reporting configuration of the source network device.

2. The method according to claim 1, wherein: The uplink control information includes at least one of the following: a measurement report, and a radio resource control RRC message uploaded via a dedicated control channel DCCH.

3. The method according to claim 1, wherein: The method further comprises: If the terminal device fails to access the target network device, the terminal device maintains the connection with the source network device, executes the trigger reporting configuration of the source network device, and sends uplink control information to the source network device.

4. A terminal device, comprising: The communication unit receives a switching command; wherein the switching command is used to configure the terminal device to perform a switching operation while maintaining a connection with a source network device and a target network device; The communication unit accesses the target network device based on the switching command and maintains data transmission and reception with the source network device; The processing unit, if the uplink of the terminal device is switched to the target network device, the terminal device does not send uplink control information to the source network device; or, if the uplink of the terminal device is not switched to the target network device, the terminal device keeps sending uplink control information to the source network device based on the configuration of the source network device; The processing unit, after receiving the switching command, does not execute the trigger reporting configuration of the source network device; wherein, the non-execution of the trigger reporting configuration of the source network device includes one of the following: controlling the trigger reporting configuration of the source network device to be invalid, suspending the use of the trigger reporting configuration of the source network device, and deactivating the trigger reporting configuration of the source network device.

5. The terminal device according to claim 4, wherein: The uplink control information includes at least one of the following: a measurement report, and a radio resource control RRC message uploaded via a dedicated control channel DCCH.

6. The terminal device according to claim 4, wherein: the communication unit, If the access to the target network device fails, the connection with the source network device is maintained, the configuration of the trigger report of the source network device is executed, and uplink control information is sent to the source network device.

7. A terminal device, comprising: a processor and a memory for storing a computer program capable of being executed on the processor, The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 1 to 3.

8. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 3.

9. A computer-readable storage medium, wherein the computer-readable storage medium is used to store a computer program, wherein the computer program enables a computer to execute the steps of the method according to any one of claims 1 to 3.

10. A computer program product, comprising computer program instructions, the computer program instructions causing a computer to execute the method according to any one of claims 1 to 3.

11. A computer program, which enables a computer to execute the method according to any one of claims 1 to 3.

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