Data receiving method and device and data sending method and device

Abstract

The embodiment of the invention provides a data receiving method and device and a data sending method and device. The method comprises the following steps: the terminal equipment receives first indication information; and after the first indication information is received and before the first time point, sending uplink data to the target cell by using the first configuration authorization opportunity of the first configuration authorization. Therefore, the target cell can quickly obtain the switched uplink beam and / or downlink beam information, thereby reducing the interruption time, and the terminal device can more efficiently utilize the resources configured with authorization, thereby improving the success rate of uplink transmission and the resource utilization rate.

Description

Data receiving and data sending method and device Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] During the standardization process for Release 18 (Rel-18), the 3GPP standardization organization conducted research on Layer 1 / Layer 2 Triggered Mobility (LTM). The goal of Rel-18 LTM is to reduce handover interruptions by performing cell handovers based on Layer 1 / Layer 2 signaling (Layer 1 / Layer 2 triggered), thereby enabling faster handovers from the serving cell (source cell) to the target cell.

[0003] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of this application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are explained in the background technology part of this application.

[0004] Summary of the Invention

[0005] Rel-18 studies Layer 1 / Layer 2 Triggered Mobility (LTM). For Rel-18 LTM, the goal is to reduce handover interruption through cell switching based on Layer 1 / Layer 2 signaling (Layer 1 / Layer 2 triggered), so as to switch from the serving cell (source cell) to the target cell faster. The target cell is the cell after switching, which can be a serving cell or a non-serving cell. Handover interruption refers to the time from the terminal device receiving the cell switch command to the first successful completion of uplink or downlink transmission between the terminal device and the target cell. Compared with the traditional cell switching based on Layer 3 signaling, the cell switching based on Layer 1 / Layer 2 signaling can further reduce handover interruption. To achieve cell switching based on layer 1 / layer 2, the terminal device measures multiple candidate cells, for example, measures the layer 1-reference signal receiving power (L1-RSRP) of the system synchronization block (SSB); and reports the measurement results to the source cell, for example, sends a channel state information report (CSI report). The source cell indicates to the terminal device which candidate cell to switch to through a cell switching command (the indicated candidate cell becomes the target cell); and indicates the beam used for uplink and downlink transmission in the target cell after switching, for example, the transmission configuration indication state (TCI state). The source cell, candidate cell, and target cell in Rel-18 LTM all support the Rel-17 unified TCI state (unified TCI). Therefore, the aforementioned indicated TCI state is the unified TCI state.

[0006] In addition, in Rel-18 LTM, the candidate cell configuration (candidate cell configuration), measurement configuration and reporting configuration (CSI report configuration) are provided by the source cell to the terminal device before the cell switching command. The candidate cell configuration includes the Radio Resource Control (RRC) configuration applied by the terminal device after switching to the target cell, that is, the RRC configuration of the target cell. The terminal device can immediately apply the RRC configuration of the target cell after the cell switching, thereby quickly completing the successful uplink or downlink transmission with the target cell; the measurement configuration mainly includes the configuration of the measurement reference signal (such as SSB); the CSI report configuration configures the information required for reporting. For a specific RRC signaling structure, for example, the CSI report configuration is included in the serving cell configuration, and the measurement configuration is located outside the serving cell configuration and the candidate cell configuration.

[0007] For traditional configuration grants, such as configuration grants before the introduction of Rel-18 LTM, terminal devices can use configured grants (CG) to send uplink data. In the configuration of the configuration grant, the terminal device is pre-configured with a configured grant occasion, which is always reserved for possible uplink transmission. When there is uplink data to be sent, the terminal device can independently select the configuration grant occasion to send it. Since there is no need to wait for uplink scheduling from the network device, configuration grants can achieve faster uplink transmission. Configuration grants include configured grant type 1 (configured grant Type 1) and configured grant type 2 (configured grant Type 2). After the Radio Resource Control (RRC) signaling configures the configuration grant type 1, the terminal device can use the configuration grant occasion for uplink transmission. After the RRC signaling configures the configuration grant type 2, it needs to be activated by downlink control information (DCI) before the terminal device can use the configuration grant occasion for uplink transmission.

[0008] The inventors discovered that in Rel-18 LTM, after switching to a target cell, a terminal device may use a first configuration authorization (e.g., a Rel-18 LTM-related configuration authorization) in which the configuration authorization timing is associated with a beam, or use a second configuration authorization (e.g., a traditional configuration authorization) in which there is no association between the configuration authorization timing and the beam. Among them, how the target cell knows the downlink beam used by the terminal device in the target cell, how the terminal device uses the first configuration authorization and the traditional configuration authorization, and how the first configuration authorization and the traditional configuration authorization are configured to the terminal device are issues that need to be addressed.

[0009] To address at least one of the above-mentioned issues, embodiments of the present application provide a method and apparatus for receiving and transmitting data. This allows a target cell to quickly obtain information about the uplink and / or downlink beams after switching, thereby reducing interruption time. Terminal devices can more efficiently utilize the configured authorized resources, thereby improving the success rate of uplink transmission and resource utilization.

[0010] According to one aspect of an embodiment of the present application, a data receiving method is provided, which is applied to a terminal device, and the method includes: receiving first indication information; after receiving the first indication information and before a first time point, using a first configured grant occasion (configured grant occasion) of a first configuration authorization to send uplink data to a target cell.

[0011] According to another aspect of an embodiment of the present application, a data sending method is provided, which is applied to a network device, and the method includes: sending first indication information to a terminal device; wherein, after receiving the first indication information and before a first time point, the terminal device uses a first configured grant occasion (configured grant occasion) of a first configuration authorization to send uplink data to a target cell.

[0012] According to another aspect of an embodiment of the present application, a data receiving device is provided, which is configured in a terminal device, wherein the data sending device includes: a first receiving unit, which receives first indication information; and a first sending unit, which sends uplink data to a target cell using a first configuration authorization timing of a first configuration authorization after receiving the first indication information and before a first time point.

[0013] According to another aspect of an embodiment of the present application, a data sending device is provided, which is configured in a network device, and the data sending device includes: a second sending unit, which sends a first indication information to a terminal device; wherein, after receiving the first indication information and before a first time point, the terminal device uses a first configuration authorization timing of a first configuration authorization to send uplink data to a target cell.

[0014] According to another aspect of an embodiment of the present application, a communication system is provided, including:

[0015] A network device that sends first indication information;

[0016] A terminal device receives the first indication information; and after receiving the first indication information and before a first time point, uses a first configured grant occasion of a first configured authorization to send uplink data to a target cell.

[0017] One of the beneficial effects of the embodiments of the present application is that: a terminal device receives first indication information; and after receiving the first indication information and before a first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to a target cell. Thus, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time, and the terminal device can more efficiently utilize the resources of the configuration authorization, thereby improving the success rate of uplink transmission and resource utilization.

[0018] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0019] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0020] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0022] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0023] FIG2 is an example diagram of Rel-18 LTM cell handover according to an embodiment of the present application;

[0024] FIG3 is a schematic diagram of a data receiving method according to an embodiment of the present application;

[0025] FIG4 is an example diagram of sending uplink data according to an embodiment of the present application;

[0026] FIG5 is an example diagram of determining a first configuration authorization timing according to an embodiment of the present application;

[0027] FIG6 is another example diagram of determining the first configuration authorization timing according to an embodiment of the present application;

[0028] FIG7 is another example diagram of determining the first configuration authorization timing according to an embodiment of the present application;

[0029] FIG8 is another example diagram of sending uplink data according to an embodiment of the present application;

[0030] FIG9 is another example diagram of sending uplink data according to an embodiment of the present application;

[0031] FIG10 is another example diagram of sending uplink data according to an embodiment of the present application;

[0032] FIG11 is another example diagram of sending uplink data according to an embodiment of the present application;

[0033] FIG12 is a schematic diagram of a data sending method according to an embodiment of the present application;

[0034] FIG13 is a schematic diagram of a data receiving device according to an embodiment of the present application;

[0035] FIG. 14 is a schematic diagram of a data sending device according to an embodiment of the present application.

[0036] FIG15 is a schematic diagram of the structure of a network device according to an embodiment of the present application;

[0037] FIG16 is a schematic diagram of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0039] In the embodiments of the present application, the terms "first," "second," etc. are used to distinguish different elements in terms of title, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," etc. refer to the presence of the stated features, elements, components, or components, but do not exclude the presence or addition of one or more other features, elements, components, or components.

[0040] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0041] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0042] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and / or other communication protocols currently known or to be developed in the future.

[0043] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0044] Base stations may include, but are not limited to, NodeB (NB), evolved NodeB (eNodeB or eNB), and 5G base stations (gNB), among others. They may also include remote radio heads (RRHs), remote radio units (RRUs), relays, or low-power nodes (e.g., femeto, pico, etc.). The term "base station" may include some or all of their functions, and each base station may provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0045] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on.

[0046] Among them, terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.

[0047] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0048] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.

[0049] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0050] Figure 1 is a schematic diagram of a communication system according to an embodiment of the present application, which schematically illustrates a situation taking a terminal device and a network device as an example. As shown in Figure 1 , a communication system 100 may include a first network device 101, a second network device 102, and a terminal device 103. For simplicity, Figure 1 only illustrates two network devices and one terminal device as an example, but the embodiment of the present application is not limited to this.

[0051] For example, the first network device 101 is the serving cell (source cell) of the terminal device 103 , and the second network device 102 is the cell after switching (target cell) of the terminal device 103 .

[0052] Figure 2 is an example diagram of Rel-18 LTM cell switching in an embodiment of the present application. As shown in Figure 2, after receiving the cell switching command, the terminal device can use the first configuration authorization to initiate the first uplink data transmission to the target cell, wherein there is an association between the configuration authorization timing of the first configuration authorization and the uplink beam. For the first uplink data transmission to the target cell, the terminal device needs to use the configuration authorization timing associated with the uplink beam indicated by the cell switching command to send, and the target cell uses the beam associated with the configuration authorization timing to receive, so that the target cell can know the uplink beam used by the terminal device in the target cell. Therefore, even when switching across distributed units (DU) (inter-DU), the source cell does not need to notify the target cell of the uplink beam, thereby reducing the interruption time.

[0053] In Rel-18 LTM, after switching to the target cell, the terminal device may use the first configuration authorization (such as Rel-18 LTM related configuration authorization) in which the configuration authorization timing is associated with the beam to send uplink data to the target cell, or may use the second configuration authorization (such as traditional configuration authorization) in which there is no association between the configuration authorization timing and the beam to send uplink data to the target cell.

[0054] The inventor discovered that: for the first configuration authorization, only the configuration authorization timing associated with a specific beam can be used for uplink transmission. Compared with the traditional configuration authorization in which all configuration authorization timings can be used for uplink transmission, the first configuration authorization is not ideal in terms of resource utilization. Therefore, if the terminal device continues to use the first configuration authorization after the switching is completed, it will cause resource waste compared to using the traditional configuration authorization; and the target cell not only needs to know the uplink beam used by the terminal device to send data, but also needs to know the downlink beam used by the terminal device to receive data.

[0055] Therefore, how the terminal device uses the first configuration authorization and the traditional configuration authorization, how the first configuration authorization and the traditional configuration authorization are configured to the terminal device, and how the target cell knows the downlink beam used by the terminal device in the target cell are all technical problems that need to be solved.

[0056] To address at least one of the above problems, embodiments of the present application provide a method and apparatus for receiving and sending data.

[0057] Embodiments of the first aspect

[0058] An embodiment of the present application provides a data receiving method, which is applied on a terminal device side.

[0059] FIG3 is a schematic diagram of a data receiving method according to an embodiment of the present application. As shown in FIG3 , the method includes:

[0060] 301, the terminal device receives first indication information;

[0061] 302. After receiving the first indication information and before the first time point, the terminal device uses the first configured grant occasion of the first configured grant to send uplink data to the target cell.

[0062] The terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after the handover, thereby reducing interruption time. The terminal device can more efficiently utilize the resources of the configuration authorization, thereby improving the success rate of uplink transmission and resource utilization.

[0063] It is worth noting that FIG3 above is merely a schematic illustration of an embodiment of the present application, using a terminal device as an example, but the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, other operations may be added or some operations may be reduced, and the objects of the aforementioned operations may be adjusted. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG3 above.

[0064] In some embodiments, terms such as "transmission configuration indication state (TCI state)" and "beam" can be used interchangeably; "cell" can be equivalently replaced by "carrier" or "component carrier"; "TCI state pool" can be equivalently replaced by "TCI state set" or "TCI state list"; "uplink data" can be equivalently replaced by "PUSCH (Physical Uplink Shared Channel)" or "UL-SCH (Uplink Shared Channel)"; the above is only an exemplary description, and the embodiments of the present application are not limited to this.

[0065] In some implementations, the first indication information includes at least a cell switch command.

[0066] For example, before receiving a cell switch command, the terminal device is configured with one or more candidate cells and provided with configuration information related to the candidate cells; the cell switch command then instructs the terminal device to switch to one or more candidate cells (i.e., target cells).

[0067] In some embodiments, the cell to which the terminal device belongs before cell switching is called a "serving cell" or a "source cell," and the cell to which the terminal device belongs after cell switching is called a target cell; for example, the "serving cell" sends a cell switch command to the terminal device, for example, the cell switch command is carried by a media access control layer control element (MAC CE). Thus, the cell switch is indicated by layer 1 or layer 2 signaling, so that the terminal device can quickly switch cells. For example, the MAC CE format corresponding to the cell switch command can refer to the existing technology, and this application does not limit this.

[0068] In some embodiments, the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam; the configuration authorization timing of the first configuration authorization includes the first configuration authorization timing.

[0069] For example, the first configuration authorization occasion is a subset or a complete set of the configuration authorization occasions of the first configuration authorization.

[0070] In some embodiments, the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, and / or the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing.

[0071] In some embodiments, a configuration authorization timing of the first configuration authorization is associated with multiple uplink beams and / or multiple downlink beams; in some embodiments, multiple configuration authorization timings of the first configuration authorization are associated with one uplink beam and / or one downlink beam, and this application does not limit this.

[0072] In some embodiments, the uplink beam applied at the first configuration authorization timing and / or the downlink beam applied at the first configuration authorization timing are indicated by the first indication information or the second indication information or the third indication information; wherein, the first indication information at least includes a cell switch command; the second indication information at least includes DCI; and the third indication information at least includes MAC CE.

[0073] For example, the first indication information includes at least a cell switch command, and the uplink beam applied by the terminal device at the first configuration authorization timing and / or the downlink beam applied at the first configuration authorization timing is the TCI state indicated in the cell switch command; for example, the second indication information includes at least DCI, the field in the DCI contains an indication of the TCI state, and the uplink beam applied by the terminal device at the first configuration authorization timing and / or the downlink beam applied at the first configuration authorization timing is a TCI state different from the previous one indicated by the DCI for the terminal device after the cell switch command; for example, the third indication information includes at least MAC CE, and the MAC CE is a unified TCI state activation MAC CE, and the uplink beam applied by the terminal device at the first configuration authorization timing and / or the downlink beam applied at the first configuration authorization timing is a TCI state different from the previous one indicated by the unified TCI state activation MAC CE for the terminal device after the cell switch command.

[0074] In some embodiments, the uplink beam includes at least one of the following: a joint TCI state, an uplink TCI state, or a TCI state; the downlink beam includes at least one of the following: a joint TCI state, a downlink TCI state, or a TCI state.

[0075] For example, the target cell supports unified TCI (unified TCI). When the unifiedTCI-StateType of the target cell is configured as joint, the unified TCI state is a joint TCI state, and both the uplink beam and the downlink beam can be equivalently replaced with the joint TCI state. When the unifiedTCI-StateType of the target cell is configured as separate, the unified TCI state is a separate TCI state, the uplink beam can be equivalently replaced with the uplink TCI state, and the downlink beam can be equivalently replaced with the downlink TCI state.

[0076] For example, for simplicity, the combined TCI state, uplink TCI state, and downlink TCI state may be collectively referred to as the TCI state, and thus the "applied uplink beam" or the "applied downlink beam" is the "applied TCI state". The terminal device may determine the applied TCI state based on existing technologies. For example, the terminal device receives a cell switching command, and starting from the last symbol of the ACK, after a certain beam application time, it may begin to apply the TCI state indicated by the cell switching command; for example, the terminal device is indicated by the DCI with a TCI state different from the previous one after the cell switching command, and after a certain beam application time after the ACK, the terminal device may begin to apply the newly indicated different TCI state; for example, the terminal device is indicated by the unified TCI state activation MAC CE with a TCI state different from the previous one after the cell switching command, and after a period of time (for example, 3 milliseconds) after the ACK, the terminal device may begin to apply the newly indicated different TCI state.

[0077] Therefore, for a configuration authorization opportunity of the first configuration authorization, the terminal device can determine the TCI state applied during the period of time when the configuration authorization opportunity occurs.

[0078] The following describes the detailed signaling process of step 302, and the method for determining the "first time point" will be described in detail later in this application, so it will not be repeated here:

[0079] Figure 4 is an example diagram of sending uplink data to the target cell according to an embodiment of the present application. For example, as shown in Figure 4, after the terminal device receives the first indication information (cell switching command) carried by the MAC CE, it sends an ACK for the PDSCH carrying the MAC CE. Starting from the last symbol of the ACK, after a certain beam application time (beamAppTime), the terminal device can start sending uplink data to the target cell. For example, the uplink data is a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH). Before the first time point (time point A), the terminal device can only use the first configuration authorization to send PUSCH to the target cell, wherein there is an association relationship (mapping relationship) between the configuration authorization timing of the first configuration authorization and the beam. Before the first time point, the terminal device uses the first configuration authorization to send PUSCH to the target cell at least once, that is, the "subsequent PUSCH" in Figure 4 may or may not exist. "Sending using the first configuration authorization" means "sending at the first configuration authorization timing associated with a specific beam of the first configuration authorization", for example, the specific beam is the uplink beam and / or downlink beam applied at the first configuration authorization timing.

[0080] For example, the cell switching command indicates the beam, so the beam applied by the terminal device is the beam indicated by the cell switching command. For example, after the cell switching command, the second indication information (DCI) or the third indication information (MAC CE) indicates a new beam, and the beam applied by the terminal device is the beam indicated by the DCI or MAC CE.

[0081] Thus, the terminal device can determine the beam to be applied at any time (including the time of the configuration authorization opportunity of the first configuration authorization).

[0082] In some embodiments, based on the association between the configuration authorization timing and the beam, the terminal device may determine the beam associated with the configuration authorization timing. For example, the "association between the configuration authorization timing and the beam" will be described in detail later in this application description, such as determining the "association between the configuration authorization timing and the beam" based on Table 1, and will not be repeated here.

[0083] Therefore, based on the association relationship between the configuration authorization timing and the beam, the terminal device can determine the beam associated with the configuration authorization timing.

[0084] After the terminal device determines the "applied beam" and "associated beam", the terminal device also needs to determine which configuration authorization timings can be used to send uplink data to the target cell. The following details:

[0085] In some embodiments, before the first time point, the terminal device determines, based on a first preset condition, whether the terminal device can use the configured authorization opportunity to send uplink data to the target cell.

[0086] For example, before the first time point, for a configured authorization opportunity, if the beam associated with the configured authorization opportunity and the beam applied at the configured authorization opportunity meet the first preset condition, the terminal device can use the configured authorization opportunity to send PUSCH to the target cell, otherwise, the terminal device cannot use the configured authorization opportunity to send PUSCH to the target cell.

[0087] The following is an example of the "first precondition":

[0088] For example, when the uplink beam associated with the configuration authorization timing is the same as the uplink beam applied by the terminal device, the terminal device considers that the configuration authorization timing is a valid configuration authorization timing (first configuration authorization timing).

[0089] Figure 5 is an example diagram of determining the first configuration authorization timing in an embodiment of the present application; as shown in Figure 5, for the first configuration authorization, each configuration authorization timing is associated with an uplink beam (first uplink beam); the terminal device determines the uplink beam (second uplink beam) to be applied at each configuration authorization timing. If the first uplink beam is the same as the second uplink beam, the terminal device can use the configuration authorization timing (first configuration authorization timing) to send PUSCH to the target cell, otherwise, the configuration authorization timing cannot be used to send PUSCH to the target cell. For example, the terminal device can only use configuration authorization timings 1 and 3 in Figure 5 to send PUSCH, but cannot use configuration authorization timings 2 and 4 to send PUSCH. The terminal device considers configuration authorization timings 1 and 3 to be valid configuration authorization timings, and uplink transmission can only be performed at valid configuration authorization timings. In other words, the terminal device considers that the first configuration authorization only includes configuration authorization timings 1 and 3.

[0090] For example, if the "uplink beam" in Figure 5 is replaced with "joint TCI state", Figure 5 can be used as an example of a joint TCI state. The joint TCI state is associated with the configuration authorization timing, and the joint TCI state is applied at the configuration authorization timing.

[0091] For example, when the uplink beam and downlink beam associated with the configuration authorization timing are the same as the uplink beam and downlink beam applied by the terminal device, the terminal device considers that the configuration authorization timing is a valid configuration authorization timing (first configuration authorization timing).

[0092] Figure 6 is another example diagram of determining the first configuration authorization opportunity in an embodiment of the present application; as shown in Figure 6, for the first configuration authorization, each configuration authorization opportunity is associated with a pair of beams, that is, an uplink beam (third uplink beam) and a downlink beam (third downlink beam). In addition, the terminal device determines the uplink beam (fourth uplink beam) and downlink beam (fourth downlink beam) to be applied at each configuration authorization opportunity. If the third uplink beam is the same as the fourth uplink beam, and the third downlink beam is the same as the fourth downlink beam, then the terminal device can use the configuration authorization opportunity (first configuration authorization opportunity) to send PUSCH to the target cell. Otherwise, the configuration authorization opportunity cannot be used to send PUSCH to the target cell. Therefore, the terminal device can only use configuration authorization opportunities 2 and 4 in Figure 6 to send PUSCH, but cannot use configuration authorization opportunities 1 and 3 to send PUSCH. Since each configuration authorization moment is associated with an uplink beam and a downlink beam, if the target cell successfully receives PUSCH at a certain configuration authorization moment, it can know the uplink beam and downlink beam associated with the configuration authorization moment, that is, the uplink beam and downlink beam used by the terminal device in the target cell.

[0093] For example, when the configuration authorization timing is associated with an uplink beam and a downlink beam and the terminal device applies an uplink beam and a downlink beam, and when the uplink beam associated with the configuration authorization timing is the same as the uplink beam applied by the terminal device, the terminal device considers that the configuration authorization timing is a valid configuration authorization timing (first configuration authorization timing).

[0094] Figure 7 is another example diagram of determining the first configuration authorization opportunity in an embodiment of the present application; as shown in Figure 7, for the first configuration authorization, each configuration authorization opportunity is associated with a pair of beams, that is, an uplink beam (third uplink beam) and a downlink beam (third downlink beam). In addition, the terminal device determines the uplink beam (fourth uplink beam) and downlink beam (fourth downlink beam) to be applied at each configuration authorization opportunity. If the third uplink beam is the same as the fourth uplink beam, the terminal device can use the configuration authorization opportunity (first configuration authorization opportunity) to send PUSCH to the target cell. Otherwise, the configuration authorization opportunity cannot be used to send PUSCH to the target cell. Therefore, the terminal device can only use configuration authorization opportunities 1 and 2 in Figure 7 to send PUSCH, but cannot use configuration authorization opportunities 3 and 4 to send PUSCH.

[0095] For example, in Figures 6 and 7, "uplink beam" is replaced with "uplink TCI state" and "downlink beam" is replaced with "downlink TCI state". Then Figures 6 and 7 can be used as examples of separate TCI states. The uplink TCI state and downlink TCI state are associated with the configuration authorization timing, and the uplink TCI state and downlink TCI state are applied at the configuration authorization timing.

[0096] In some embodiments, the terminal device may be configured with multiple first configuration authorizations. For example, the terminal device has multiple active first configuration authorizations, and the terminal device performs the above operation on each first configuration authorization to determine whether the configuration authorization timing of the first configuration authorization can be used to send PUSCH; and after the first time point, the terminal device does not use the first configuration authorization to send PUSCH.

[0097] In some embodiments, the method further includes: including an indication of a downlink beam in the uplink data sent to the target cell.

[0098] For example, the configuration authorization timing of the first configuration authorization is associated with the uplink beam, the terminal device sends a PUSCH to the target cell at a certain configuration authorization timing, and the PUSCH includes an indication of the downlink beam. After the target cell successfully receives the PUSCH at the configuration authorization timing, it can obtain the uplink beam according to the association between the configuration authorization timing and the uplink beam, and obtain the downlink beam according to the indication of the downlink beam in the PUSCH. For example, when the unifiedTCI-StateType of the target cell is configured as separate, the uplink data sent to the target cell includes an indication of the downlink beam. For example, the indication of the downlink beam can be a TCI state ID or an SSB index.

[0099] Therefore, by introducing the association between the configuration authorization timing and the uplink beam and / or downlink beam, the target cell can obtain the uplink beam and / or downlink beam information used by the terminal device after the handover by successfully receiving the configuration authorization timing at a configuration authorization timing, without the source cell notifying the target cell of the beam information, thereby reducing the interruption time. In addition, for the first configuration authorization, since the first configuration authorization can only be used for uplink transmission at the configuration authorization timing associated with a specific beam, there is a waste of resources. By restricting the terminal device to use the first configuration authorization only within a certain time range, this resource waste can be reduced.

[0100] In some embodiments, the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam, including: the configuration authorization timing of the first configuration authorization is associated with a first reference signal and / or a second reference signal.

[0101] In some embodiments, the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, including that the configuration authorization timing of the first configuration authorization is associated with the first reference signal; wherein the associated first reference signal: is a reference signal in the joint TCI state or uplink TCI state or TCI state applied at the first configuration authorization timing; or, is quasi-co-located with the reference signal in the joint TCI state or uplink TCI state or TCI state applied at the first configuration authorization timing.

[0102] In some embodiments, the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing, including the configuration authorization timing of the first configuration authorization being associated with the second reference signal; wherein the associated second reference signal: is a reference signal in the joint TCI state or downlink TCI state or TCI state applied at the first configuration authorization timing, or is quasi-co-located with the reference signal in the joint TCI state or downlink TCI state or TCI state applied at the first configuration authorization timing.

[0103] For example, “the configured grant timing of the first configured grant is associated with an uplink beam and / or a downlink beam” can be equivalently replaced by “the configured grant timing of the first configured grant is associated with a first reference signal and / or a second reference signal”; “the uplink beam associated with the first configured grant timing is the same as the uplink beam applied at the first configured grant timing” can be equivalently replaced by “the first reference signal associated with the first configured grant timing is a reference signal in the joint TCI state, uplink TCI state, or TCI state applied at the first configured grant timing”, or “the first reference signal associated with the first configured grant timing is quasi-co-located with the reference signal in the joint TCI state, uplink TCI state, or TCI state applied at the first configured grant timing”; “the downlink beam associated with the first configured grant timing is the same as the downlink beam applied at the first configured grant timing” can be equivalently replaced by “the second reference signal associated with the first configured grant timing is a reference signal in the joint TCI state, downlink TCI state, or TCI state applied at the first configured grant timing”, or “the second reference signal associated with the first configured grant timing is quasi-co-located with the reference signal in the joint TCI state, downlink TCI state, or TCI state applied at the first configured grant timing”. The reference signals in the state are quasi-co-located".

[0104] For example, since the beam can be determined based on the reference signal, "beam" can be equivalently replaced by "reference signal", and "configuring the authorization timing to be associated with the uplink beam and / or downlink beam" can be equivalently replaced by "configuring the authorization timing to be associated with the first reference signal and / or the second reference signal". Here, "first reference signal" and "second reference signal" are used to distinguish and correspond to the uplink beam and the downlink beam. In this case, "the beam associated with the first configured authorization timing is the same as the beam applied at the first configured authorization timing" can be equivalently replaced by "the reference signal associated with the first configured authorization timing is the reference signal in the TCI state applied at the first configured authorization timing", or "the reference signal associated with the first configured authorization timing is the reference signal in the TCI state applied at the first configured authorization timing. Quasi Co-Location (QCL)", where the reference signal in the TCI state refers to the source reference signal used to determine the quasi co-location relationship. Furthermore, for "uplink beam", "joint TCI state or uplink TCI state" can be used accordingly, and for "downlink beam", "joint TCI state or downlink TCI state" can be used accordingly.

[0105] In some embodiments, the first reference signal and / or the second reference signal includes: a measurement system synchronization block (SSB), or a channel state information reference signal (CSI-RS), or a tracking reference signal (TRS).

[0106] For example, there is an association between the configuration grant opportunity and a reference signal, and the reference signal may be an SSB, a CSI-RS, or a TRS.

[0107] In some embodiments, the terminal device uses the TCI state to send the PUSCH, which means that the terminal device determines an uplink transmit spatial filter (UL TX spatial filter) for the PUSCH based on the reference signal in the TCI state.

[0108] In some implementations, the method further includes: 303, the terminal device sends uplink data to the target cell using the second configuration authorization timing of the second configuration authorization after the second time point.

[0109] In some embodiments, there is no correlation between the configuration authorization timing of the second configuration authorization and the uplink beam and / or downlink beam.

[0110] In some implementations, the method further includes: first using the first configuration authorization to send uplink data to the target cell, and then using the second configuration authorization to send uplink data to the target cell.

[0111] In some implementations, the first configuration authorization is configuration authorization type 1, and the second configuration authorization is configuration authorization type 1 or configuration authorization type 2.

[0112] For example, the first configuration authorization is configured grant Type 1 (configured grant Type 1), for example, after the radio resource control (Radio Resource Control, RRC) signaling configures the configuration authorization type 1, the terminal device can use the configuration authorization opportunity for uplink transmission; the second configuration authorization is configured grant Type 1 (configured grant Type 1) or configured grant Type 2 (configured grant Type 2), for example, when the second configuration authorization is configured grant Type 2 (configured grant Type 2), after the RRC signaling configures the configuration authorization type 2, it is still necessary to activate the downlink control information (downlink control information, DCI) before the terminal device can use the configuration authorization opportunity for uplink transmission.

[0113] The following examples illustrate the signaling process for sending uplink data in combination with the settings of the "first time point" and the "second time point":

[0114] Figure 8 is another example diagram of sending uplink data in an embodiment of the present application; for example, as shown in Figure 8, starting from the second time point (time point B), the terminal device can use the second configuration authorization to send PUSCH to the target cell. Unlike the first configuration authorization, there is no correlation between the configuration authorization timing and the beam of the second configuration authorization. For example, the second configuration authorization is a traditional configuration authorization, and the terminal device uses the second configuration authorization to send PUSCH to the target cell according to the existing technology. For example, the terminal device can be configured with multiple second configuration authorizations, for example, the terminal device has multiple active second configuration authorizations; and, before the second time point, the terminal device does not use the second configuration authorization to send PUSCH.

[0115] For example, the first PUSCH shown in Figure 8 is sent before the first time point and before the second time point, and the terminal device can only use the first configuration authorization to send the first PUSCH; the second PUSCH shown in Figure 8 is sent after the second time point, and the terminal device can use the second configuration authorization to send the second PUSCH; the second PUSCH shown in Figure 8 is also sent before the first time point, and the terminal device can also use the first configuration authorization to send the second PUSCH; for the PUSCH located after the second time point and before the first time point, the terminal device can use the second configuration authorization to send PUSCH, and can use the first configuration authorization to send PUSCH. The terminal device can determine whether to use the second configuration authorization or the first configuration authorization to send PUSCH.

[0116] Therefore, by restricting the terminal device to use the first configuration authorization only within a certain time range, the above-mentioned waste of resources can be reduced.

[0117] FIG9 is another example diagram of sending uplink data according to an embodiment of the present application; FIG10 is another example diagram of sending uplink data according to an embodiment of the present application;

[0118] For example, there is no restriction on the temporal order of the second time point and the first time point. As shown in Figure 8, the second time point is before the first time point. As shown in Figure 9, the second time point is the same as the first time point. As shown in Figure 10, the second time point is after the first time point. However, no matter how the first time point and the second time point are determined, it is always guaranteed that the terminal device can start using the first configuration authorization earlier than the second configuration authorization, so that the first PUSCH sent by the terminal device to the target cell uses the first configuration authorization. Optionally, the terminal device can continue to use the first configuration authorization after the first PUSCH or use the second configuration authorization to send PUSCH to the target cell.

[0119] Therefore, for the first configuration authorization, only the configuration authorization timing associated with a specific beam can be used for uplink transmission, so there is a waste of resources. For the second configuration authorization, all configuration authorization timings can be used for uplink transmission, so there is no waste of resources. By restricting the terminal device to use the first configuration authorization only within a certain time range, and restricting the terminal device to use the second configuration authorization within another time range, it is possible to further reduce the above-mentioned resource waste and improve the resource utilization of the configuration authorization while ensuring that the target cell can quickly obtain the uplink beam and / or downlink beam information after switching.

[0120] The following is an example of how to determine the "first time point" and / or the "second time point":

[0121] In some embodiments, the first time point and / or the second time point is determined based on at least one of the following: determining that the uplink data sent to the target cell for the first time is successfully received; applying a TCI state different from the TCI state indicated by the first indication information; applying a TCI state from a TCI state pool different from a TCI state pool for Layer 1 / Layer 2 Triggered Mobility (L1 / L2 Triggered Mobility, LTM); the first configuration authorization is released; or the second configuration authorization is configured.

[0122] For example, at the first time point or the second time point, the terminal device determines that the uplink data sent to the target cell for the first time is successfully received. For example, after receiving the cell switching command, the terminal device uses the first configuration authorization to send the first PUSCH to the target cell. At a certain time point later, the terminal device determines that the first PUSCH is successfully received by the target cell, which means that the terminal device determines that the uplink data sent to the target cell for the first time is successfully received. This time point can be used as the first time point or the second time point. For example, after receiving the cell switching command, the terminal device uses the first configuration authorization to send the first PUSCH (initial transmission) to the target cell, but the PUSCH is not successfully received by the target cell. Therefore, the terminal device continues to use the first configuration authorization to send PUSCH (retransmission) to the target cell. Regardless of the initial transmission or retransmission, the PUSCH carries the uplink data sent to the target cell for the first time, for example, the RRC reconfiguration complete message (RRCReconfigurationComplete message). At a certain time point later, the terminal device determines that the uplink data sent to the target cell for the first time is successfully received. This time point can be used as the first time point or the second time point.

[0123] For example, "the device determines that the uplink data sent to the target cell for the first time is successfully received" can also be equivalently replaced by "the terminal device determines that the first uplink data transmission to the target cell is successfully received."

[0124] For example, the first time point or the second time point is determined based on the TCI state applied by the terminal device that is different from the TCI state indicated by the cell switching command. For example, the first indication information (cell switching command) indicates TCI state#1 applied to uplink transmission on the target cell, so that the terminal device applies TCI state#1. After that, the target cell can instruct the terminal device to apply a TCI state different from TCI state#1, and the different TCI state indicated for the first time is recorded as TCI state#2. The terminal device starts to apply TCI state#2 at a certain time point, and this time point can be used as the first time point or the second time point. The target cell can use the second indication information (DCI) to indicate TCI state#2, for example, first use MAC CE to activate multiple TCI states, and then use DCI to indicate a TCI state as TCI state#2 among the activated multiple TCI states; the target cell can also use the third indication information (MAC CE) to indicate TCI state#2, for example, use MAC CE to activate a TCI state, and the TCI state is TCI state#2.

[0125] Figure 11 is another example diagram of sending uplink data in an embodiment of the present application; as shown in Figure 11, after receiving the cell switching command indicating TCI state#1, the terminal device receives the DCI indicating TCI state#2, and thus starts to apply TCI state#2 at a certain time point after the beam application time 2, and this time point can be used as the first time point or the second time point. "The first time point or the second time point is determined based on the TCI state applied by the terminal device that is different from the TCI state indicated by the cell switching command" also includes: for example, the terminal device receives the signaling indicating TCI state#2 sent by the target cell at a certain time point, and this time point can be used as the first time point or the second time point; for another example, the terminal device receives the signaling indicating TCI state#2 sent by the target cell, and sends an ACK associated with the signaling at a certain time point, and this time point can be used as the first time point or the second time point.

[0126] For example, the first time point or the second time point is determined based on the TCI state applied by the terminal device from a TCI state pool different from the LTM TCI state pool. The serving cell (source cell) configures the LTM TCI state pool for the terminal device before sending a cell handover command (recorded as the first step), and indicates a TCI state in the LTM TCI state pool in the cell handover command (recorded as the second step). Optionally, the serving cell can activate at least one TCI state in the LTM TCI state pool for the terminal device between the first and second steps, so the TCI state indicated by the cell handover command is from the LTM TCI state pool. Before sending a cell handover command, the serving cell provides the terminal device with a candidate cell configuration (candidate cell configuration), which may include a TCI state pool used by the terminal device after switching to the target cell, that is, a traditional TCI state pool (different from the LTM TCI state pool). The TCI state pool can be dl-OrJointTCI-StateList (when unifiedTCI-StateType is configured as joint or separate), or ul-TCI-StateList (when unifiedTCI-StateType is configured as separate). After the cell handover command, the target cell may indicate the TCI state in the LTM TCI state pool and / or the TCI state in the legacy TCI state pool, for example, by using MAC CE activation and / or DCI to indicate the TCI state. At a certain point in time, if the terminal device first applies the TCI state in the legacy TCI state pool, this point in time may be used as the first time point or the second time point.

[0127] For example, still taking Figure 11 as an example for explanation, the difference from the above is that here TCI state#2 is restricted to come from a TCI state pool different from the LTM TCI state pool, that is, the traditional TCI state pool. If TCI state#2 comes from the LTM TCI state pool, it is not used to determine the first time point or the second time point. "The first time point or the second time point is determined based on the TCI state from a TCI state pool different from the LTM TCI state pool applied by the terminal device" also includes: for example, the terminal device receives a signaling sent by the target cell at a certain time point indicating TCI state#2 from the traditional TCI state pool, and the time point can be used as the first time point or the second time point; for another example, the terminal device receives a signaling sent by the target cell indicating TCI state#2 from the traditional TCI state pool, and sends an ACK associated with the signaling at a certain time point, and the time point can be used as the first time point or the second time point.

[0128] For example, the first time point or the second time point is determined according to the release of the first configuration authorization. The terminal device receives a signaling sent by the target cell indicating that the first configuration authorization is released. At a certain time point, the terminal device releases the relevant configuration of the first configuration authorization. This time point can be used as the first time point or the second time point.

[0129] For example, the first time point or the second time point is determined according to the configuration of the second configuration authorization. The terminal device receives signaling sent by the target cell indicating that the second configuration authorization is configured (i.e., signaling configuring the second configuration authorization), and at a certain time point, the terminal device applies the second configuration authorization, and this time point can be used as the first time point or the second time point.

[0130] In some embodiments, it is determined that the uplink data sent to the target cell for the first time is successfully received based on at least one of the following: receiving DCI without DL assignment; receiving UE Contention Resolution Identity MAC CE; receiving DCI with CRC scrambled by C-RNTI; receiving Radio Link Control (RLC) layer ACK for the uplink data sent to the target cell for the first time.

[0131] For example, in the case of receiving DCI without downlink allocation, the terminal device determines that the uplink data sent to the target cell for the first time is successfully received. The definition of DCI without downlink allocation can refer to the definition of DCI format 1_1 / 1_2 without DL assignment in Section 5.1.5 of TS 38.214 V17.6.0. For example, if DCI without downlink allocation is received for the first time, the terminal device determines that the uplink data sent to the target cell for the first time is successfully received, that is, the DCI is interpreted as indicating that the uplink data sent to the target cell for the first time is successfully received. If DCI without downlink allocation is received again subsequently, the terminal device interprets it according to the existing standard. For another example, a specific field of the DCI without downlink allocation is set to a specific value to indicate that the uplink data sent to the target cell for the first time is successfully received.

[0132] For example, upon receiving the UE contention resolution identifier MAC CE, the terminal device determines that the uplink data sent to the target cell for the first time is successfully received. The definition of the UE contention resolution identifier MAC CE can be found in Section 6.1.3.3 of TS 38.321 V17.5.0, and this application does not provide a detailed description of this.

[0133] For example, in the case of receiving DCI whose CRC is scrambled by C-RNTI, the terminal device determines that the uplink data sent to the target cell for the first time is successfully received. For example, if the terminal device receives DCI whose CRC is scrambled by C-RNTI, and the PUSCH scheduled by the DCI has the same HARQ process ID as the uplink data sent to the target cell for the first time, the terminal device determines that the uplink data sent to the target cell for the first time is successfully received.

[0134] For example, upon receiving a radio link control layer ACK for uplink data sent to the target cell for the first time, the terminal device determines that the uplink data sent to the target cell for the first time is successfully received. The uplink data sent to the target cell for the first time may be an RRC reconfiguration complete message.

[0135] In some embodiments, the first time point and the second time point are the same or different.

[0136] For example, the first time point and the second time point are both determined according to one of the methods described above, i.e., they are determined according to the same method, and therefore the first time point and the second time point are the same. For example, the first time point and the second time point are each determined according to the methods described above, i.e., they can be determined according to different methods. For example, the first time point and the second time point shown in Figures 8 and 10 are different. As shown in Figure 8, the second time point can be located before the first time point in time. For example, as shown in Figure 10, the second time point can be located after the first time point in time. For example, the first time point and the second time point shown in Figure 9 are the same.

[0137] Therefore, the terminal device can determine the first time point and the second time point, and restrict the terminal device to use the first configuration authorization before the first time point, and restrict the terminal device to use the second configuration authorization after the second time point. This can further reduce the above-mentioned resource waste and improve the resource utilization of the configuration authorization while ensuring that the target cell can quickly obtain the uplink beam and / or downlink beam information after the switch.

[0138] In some implementations, the method further includes: 304, the terminal device is configured with the first configuration authorization and / or the second configuration authorization.

[0139] For example, the terminal device is separately configured with the first configuration authorization and the second configuration authorization. For example, the terminal device is configured with the first configuration authorization and the second configuration authorization, and the first configuration authorization and the second configuration authorization are separately configured. The terminal device can at least determine the configuration authorization timing of the first configuration authorization and the uplink beam and / or downlink beam associated with the configuration authorization timing based on the configuration of the first configuration authorization. The terminal device can at least determine the configuration authorization timing of the second configuration authorization based on the configuration of the second configuration authorization. In this way, the first configuration authorization and the second configuration authorization can be determined.

[0140] In some implementations, the terminal device determines the second configuration authorization based on the configured first configuration authorization.

[0141] For example, a terminal device is configured with a first configuration authorization, where the configuration of the first configuration authorization includes first configuration information, wherein the association between the configuration authorization timing and the uplink beam and / or downlink beam is determined based on the first configuration information; the terminal device determines a second configuration authorization based on the first configuration authorization, where the configuration of the second configuration authorization includes other configuration information in the first configuration authorization in addition to the first configuration information. In other words, the second configuration authorization is the first configuration authorization in which there is no association between the configuration authorization timing and the uplink beam and / or downlink beam.

[0142] In some embodiments, the association between the configuration authorization timing of the first configuration authorization and the uplink beam and / or downlink beam is determined based on first configuration information, wherein the first configuration information is included in the configuration of the first configuration authorization.

[0143] For example, the terminal device sends a PUSCH to the target cell using the uplink beam applied at the first configuration authorization timing or the uplink beam associated with the first configuration authorization timing.

[0144] For example, the configuration of the first configuration authorization includes first configuration information, the first configuration information includes a beam set and / or the number of beams associated with each configuration authorization opportunity, and the configuration authorization opportunity is associated with the beam according to a certain rule. For example, Table 1 is an example diagram of the IE of the "first configuration authorization". As shown in Table 1, the first configuration authorization is configured by CG-Configuration, and CG-Configuration includes the first configuration information. The first configuration information includes the SSB set SSB-Subset and the number of SSBs associated with each configuration authorization opportunity SSB-PerCG-PUSCH. CG-Configuration may also include other information, for example, information used to determine the configuration authorization opportunity, MCS level, PMI, etc.

[0145] Table 1

[0146] In some embodiments, the first configuration authorization and / or the second configuration authorization are configured in a candidate cell configuration; or, the first configuration authorization and / or the second configuration authorization are configured outside the candidate cell configuration.

[0147] For example, the first configuration authorization and / or the second configuration authorization are configured in the candidate cell configuration:

[0148] Table 2

[0149] For example, Table 2 is an example of LTM configuration. The serving cell provides a terminal device with a candidate cell configuration before sending a cell switching command. As shown in Table 2, the LTM configuration (LTM-Config) includes a candidate cell configuration. The candidate cell configuration is provided (or configured) by ltm-CandidateToAddModList. ltm-CandidateToAddModList can provide a candidate cell configuration (LTM-Candidate) of one or more candidate cells. The first configuration authorization and / or the second configuration authorization of a candidate cell are configured in the candidate cell configuration (LTM-Candidate) associated with the candidate cell. If the terminal device switches to a candidate cell, the candidate cell becomes the target cell.

[0150] For example, the candidate cell configuration includes a configuration of a first configuration authorization and a configuration of a second configuration authorization, and the configuration of the first configuration authorization and the configuration of the second configuration authorization are independent, that is, the first configuration authorization and the second configuration authorization are independently configured.

[0151] For example, the candidate cell configuration includes the configuration authorized by the first configuration, and the configuration authorized by the second configuration is determined according to the configuration authorized by the first configuration.

[0152] For example, the first configuration grant and / or the second configuration grant is configured outside of the candidate cell configuration.

[0153] For example, as shown in Table 2, the first configuration authorization and / or the second configuration authorization of a candidate cell are not configured in the candidate cell configuration (LTM-Candidate) associated with the candidate cell, but are configured in an information element (IE) different from ltm-CandidateToAddModList in the LTM configuration (LTM-Config).

[0154] Therefore, the association between the configuration authorization timing of the first configuration authorization and the uplink beam and / or downlink beam can be determined according to the first configuration information, and the first configuration authorization and / or the second configuration authorization can be determined.

[0155] In some implementations, determining that the uplink data sent to the target cell for the first time is successfully received includes: determining that the uplink data sent to the target cell is successfully received for the first time.

[0156] For example, after receiving the cell switching command, the terminal device uses the configuration authorization timing of the first configuration authorization to send the first PUSCH (initial transmission) to the target cell. If the first PUSCH is not successfully received, the terminal device continues to use the configuration authorization timing of the first configuration authorization to send the second PUSCH (retransmission). The second PUSCH is successfully received. At this time, "the terminal device first determines that the PUSCH sent to the target cell is successfully received" actually means that the second PUSCH is successfully received.

[0157] In some implementations, when the terminal device determines that the uplink data sent to the target cell for the first time is successfully received, the terminal device considers that the LTM execution is successfully completed.

[0158] In some embodiments, the method further includes: after the first time point, considering the first configuration authorization to be released.

[0159] For example, after the first time point, the first configuration grant is released, and the time-frequency resources at the configuration grant timing of the first configuration grant can be used by the target cell to schedule other uplink or downlink transmissions, thereby effectively improving resource utilization.

[0160] Therefore, for the first configuration authorization, only the configuration authorization opportunity associated with a specific beam can be used for uplink transmission, so there is a waste of resources. The first configuration authorization is released after a certain period of time, which can reduce the above-mentioned resource waste.

[0161] In some embodiments, sending uplink data to the target cell using a first configured grant occasion of the first configured grant includes: determining, according to second configuration information, to send the first uplink data to the target cell using the first configured grant after receiving the first indication information.

[0162] For example, the method described above is applicable to a certain specific type of terminal device. For a certain specific type of terminal device, after receiving a cell handover command, the terminal device uses the first configuration authorization to send the first PUSCH to the target cell. For example, the terminal device is configured by the second configuration information to use the first configuration authorization to send the first PUSCH to the target cell after receiving the cell handover command. For example, if the terminal device is configured with the first configuration authorization by the second configuration information, then after receiving the cell handover command, the terminal device uses the first configuration authorization to send the first uplink data to the target cell. If the terminal device is not configured with the first configuration authorization, then the terminal device uses the dynamic authorization or the configured second configuration authorization to send the first uplink data to the target cell.

[0163] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0164] As can be seen from the above embodiment, the terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time. The terminal device can more efficiently utilize the resources of the configuration authorization, thereby improving the success rate of uplink transmission and resource utilization.

[0165] Embodiments of the second aspect

[0166] The embodiment of the present application provides a data transmission method, which is applied to a network device. The embodiment of the present application can be combined with the embodiment of the first aspect, or can be implemented independently. The contents that are the same as those of the embodiment of the first aspect are not repeated here.

[0167] FIG12 is a schematic diagram of a data sending method according to an embodiment of the present application. As shown in FIG12 , the method includes:

[0168] 1201, the network device sends a first indication message to the terminal device; wherein, after receiving the first indication message and before the first time point, the terminal device uses a first configured grant occasion of a first configured authorization to send uplink data to the target cell.

[0169] Thus, the terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time, and the terminal device can more efficiently utilize the configuration authorization resources, thereby improving the success rate of uplink transmission and resource utilization.

[0170] In some embodiments, terms such as "network device" can be equivalently replaced by "serving cell" or "source cell", such as the "first network device 101" shown in Figure 1; "target cell" for example includes the "second network device 102" shown in Figure 1.

[0171] In some embodiments, the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam.

[0172] In some implementations, the configuration authorization opportunity of the first configuration authorization includes the first configuration authorization opportunity.

[0173] In some embodiments, the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, and / or the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing.

[0174] In some embodiments, the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam, including: the configuration authorization timing of the first configuration authorization is associated with a first reference signal and / or a second reference signal.

[0175] In some embodiments, the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, including: the configuration authorization timing of the first configuration authorization is associated with the first reference signal; wherein the associated first reference signal: is a reference signal in the joint TCI state or uplink TCI state or TCI state applied at the first configuration authorization timing; or, is quasi-co-located with the reference signal in the joint TCI state or uplink TCI state or TCI state applied at the first configuration authorization timing.

[0176] In some embodiments, the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing, including: the configuration authorization timing of the first configuration authorization is associated with the second reference signal; wherein, the associated second reference signal: is a reference signal in the joint TCI state or downlink TCI state or TCI state applied at the first configuration authorization timing, or is quasi-co-located with the reference signal in the joint TCI state or downlink TCI state or TCI state applied at the first configuration authorization timing.

[0177] In some implementations, the method further includes: 1202 , the network device configures the first configuration authorization and / or the second configuration authorization.

[0178] It is worth noting that FIG12 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG12 above.

[0179] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0180] As can be seen from the above embodiment, the terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time. The terminal device can more efficiently utilize the resources of the configuration authorization, thereby improving the success rate of uplink transmission and resource utilization.

[0181] Embodiments of the third aspect

[0182] The embodiment of the present application provides a data receiving device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the same contents as those in the embodiment of the first aspect will not be repeated here.

[0183] FIG13 is a schematic diagram of a data receiving device according to an embodiment of the present application. As shown in FIG13 , the data receiving device 1300 includes:

[0184] A first receiving unit 1301 receives first indication information;

[0185] The first sending unit 1302 is configured to send uplink data to the target cell using the first configured authorization opportunity of the first configured authorization after receiving the first indication information and before the first time point.

[0186] Thus, the terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time, and the terminal device can more efficiently utilize the configuration authorization resources, thereby improving the success rate of uplink transmission and resource utilization.

[0187] In some embodiments, the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam; the configuration authorization timing of the first configuration authorization includes the first configuration authorization timing.

[0188] In some embodiments, the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, and / or the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing.

[0189] In some embodiments, the uplink beam applied at the first configuration authorization timing and / or the downlink beam applied at the first configuration authorization timing are indicated by the first indication information or the second indication information or the third indication information; wherein, the first indication information at least includes a cell switch command; the second indication information at least includes downlink control information (DCI); and the third indication information at least includes a MAC control element (MAC Control Element, MAC CE).

[0190] In some implementations, the first sending unit 1302 further: after the second time point, uses the second configured authorization opportunity of the second configured authorization to send uplink data to the target cell.

[0191] In some embodiments, there is no correlation between the configuration authorization timing of the second configuration authorization and the uplink beam and / or downlink beam.

[0192] In some implementations, the first sending unit 1302 further: first uses the first configuration grant to send uplink data to the target cell, and then uses the second configuration grant to send uplink data to the target cell.

[0193] In some embodiments, the first time point and / or the second time point is determined based on at least one of the following: determining that the uplink data sent to the target cell for the first time is successfully received; applying a transmission configuration indication state (TCI state) different from the transmission configuration indication state (TCI state) indicated by the first indication information; applying a transmission configuration indication state (TCI state) from a transmission configuration indication state pool (TCI state pool) different from a transmission configuration indication state pool (TCI state pool) used for Layer 1 / Layer 2 Triggered Mobility (L1 / L2 Triggered Mobility, LTM); the first configuration authorization is released; or the second configuration authorization is configured.

[0194] In some embodiments, it is determined that the uplink data sent to the target cell for the first time is successfully received based on at least one of the following: receiving DCI without DL assignment; receiving UE Contention Resolution Identity MAC CE; receiving DCI whose cyclic redundancy check code (CRC) is scrambled by the cell radio network temporary identifier (Cell-Radio Network Temporary Identifier, C-RNTI); receiving a radio link control (RLC) layer acknowledgment (ACK) for the uplink data sent to the target cell for the first time.

[0195] In some implementations, determining that the uplink data sent to the target cell for the first time is successfully received includes: determining that the uplink data sent to the target cell for the first time is successfully received.

[0196] In some implementations, the data receiving apparatus 1300 further includes: a determining unit 1304, which considers that the first configuration authorization is released after the first time point.

[0197] In some embodiments, the first time point and the second time point are the same or different.

[0198] In some implementations, the data receiving apparatus further includes: a first configuration unit 1303 , which is configured with the first configuration authorization and / or the second configuration authorization.

[0199] In some implementations, the first configuration unit 1303 determines the second configuration authorization according to the configured first configuration authorization.

[0200] In some embodiments, the first configuration unit 1303 is configured with the first configuration authorization and / or the second configuration authorization in the candidate cell configuration; or, the first configuration unit 1303 is configured with the first configuration authorization and / or the second configuration authorization outside the candidate cell configuration.

[0201] In some embodiments, the first configuration unit 1303 determines the association between the configuration authorization timing of the first configuration authorization and the uplink beam and / or downlink beam based on first configuration information, wherein the first configuration information is included in the configuration of the first configuration authorization.

[0202] In some implementations, the first sending unit 1302 further: after receiving the first indication information, uses the first configuration authorization to send the first uplink data to the target cell.

[0203] In some embodiments, the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam, including: the configuration authorization timing of the first configuration authorization is associated with a first reference signal and / or a second reference signal.

[0204] In some embodiments, the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, including: the configuration authorization timing of the first configuration authorization is associated with the first reference signal; wherein the associated first reference signal: is a reference signal in the joint transmission configuration indication state (TCI state) or uplink transmission configuration indication state (TCI state) or transmission configuration indication state (TCI state) applied at the first configuration authorization timing; or, is quasi-co-located with the reference signal in the joint transmission configuration indication state (TCI state) or uplink transmission configuration indication state (TCI state) or transmission configuration indication state (TCI state) applied at the first configuration authorization timing.

[0205] In some embodiments, the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing, including: the configuration authorization timing of the first configuration authorization is associated with the second reference signal; wherein, the associated second reference signal: is a reference signal in the joint transmission configuration indication state (TCI state) or downlink transmission configuration indication state (TCI state) or transmission configuration indication state (TCI state) applied at the first configuration authorization timing, or is quasi-co-located with the reference signal in the joint transmission configuration indication state (TCI state) or downlink transmission configuration indication state (TCI state) or transmission configuration indication state (TCI state) applied at the first configuration authorization timing.

[0206] In some embodiments, the first reference signal and / or the second reference signal includes: a measurement system synchronization block (SSB), or a channel state information reference signal (CSI-RS), or a tracking reference signal (TRS).

[0207] In some embodiments, the first configuration authorization is configuration authorization type 1, and / or the second configuration authorization is configuration authorization type 1 or configuration authorization type 2.

[0208] In some embodiments, the uplink beam includes at least one of the following: a joint transmission configuration indication state (TCI state), an uplink transmission configuration indication state (TCI state), or a transmission configuration indication state (TCI state); the downlink beam includes at least one of the following: a joint transmission configuration indication state (TCI state), a downlink transmission configuration indication state (TCI state), or a transmission configuration indication state (TCI state).

[0209] In some implementations, the first sending unit 1302 includes an indication of a downlink beam in the uplink data sent to the target cell.

[0210] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0211] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The data receiving device 1300 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0212] In addition, for the sake of simplicity, FIG13 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0213] As can be seen from the above embodiment, the terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time. The terminal device can more efficiently utilize the resources of the configuration authorization, thereby improving the success rate of uplink transmission and resource utilization.

[0214] Embodiments of the fourth aspect

[0215] The embodiment of the present application provides a data sending device, which may be, for example, a network device, or one or more components or assemblies configured on the network device, and the contents that are the same as those in the embodiment of the second aspect are not repeated here.

[0216] FIG14 is a schematic diagram of a data transmission device according to an embodiment of the present application. As shown in FIG14 , the data transmission device 1400 includes:

[0217] The second sending unit 1401 sends a first indication message to the terminal device; wherein, after receiving the first indication message and before the first time point, the terminal device uses the first configuration authorization timing of the first configuration authorization to send uplink data to the target cell.

[0218] Thus, the terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time, and the terminal device can more efficiently utilize the configuration authorization resources, thereby improving the success rate of uplink transmission and resource utilization.

[0219] In some embodiments, the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam.

[0220] In some implementations, the configuration authorization opportunity of the first configuration authorization includes the first configuration authorization opportunity.

[0221] In some embodiments, the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, and / or the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing.

[0222] In some embodiments, the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam, including: the configuration authorization timing of the first configuration authorization is associated with a first reference signal and / or a second reference signal.

[0223] In some embodiments, the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, including that the configuration authorization timing of the first configuration authorization is associated with the first reference signal; wherein the associated first reference signal: is a reference signal in the joint TCI state or uplink TCI state or TCI state applied at the first configuration authorization timing; or, is quasi-co-located with the reference signal in the joint TCI state or uplink TCI state or TCI state applied at the first configuration authorization timing.

[0224] In some embodiments, the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing, including that the configuration authorization timing of the first configuration authorization is associated with the second reference signal; wherein, the associated second reference signal: is a reference signal in the joint TCI state or downlink TCI state or TCI state applied at the first configuration authorization timing, or is quasi-co-located with the reference signal in the joint TCI state or downlink TCI state or TCI state applied at the first configuration authorization timing.

[0225] In some implementations, the data sending apparatus 1400 further includes: a second configuration unit 1402 configured to configure the first configuration authorization and / or the second configuration authorization.

[0226] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0227] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The data sending device 1400 may also include other components or modules. For details of these components or modules, please refer to the relevant art.

[0228] In addition, for the sake of simplicity, FIG14 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.

[0229] As can be seen from the above embodiment, the terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time. The terminal device can more efficiently utilize the resources of the configuration authorization, thereby improving the success rate of uplink transmission and resource utilization.

[0230] Embodiments of the fifth aspect

[0231] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents that are the same as those in the embodiments of the first to fourth aspects will not be repeated.

[0232] In some implementations, the communication system 100 may include at least: a network device and a terminal device, wherein:

[0233] A network device that sends first indication information;

[0234] A terminal device receives the first indication information; and after receiving the first indication information and before a first time point, uses a first configured grant occasion of a first configured authorization to send uplink data to a target cell.

[0235] Thus, the terminal device receives the first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell. As a result, the target cell can quickly obtain uplink beam and / or downlink beam information after switching, thereby reducing interruption time, and the terminal device can more efficiently utilize the configuration authorization resources, thereby improving the success rate of uplink transmission and resource utilization.

[0236] An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.

[0237] Figure 15 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 15 , network device 1500 may include a processor 1510 (e.g., a central processing unit (CPU)) and a memory 1520; memory 1520 is coupled to processor 1510. Memory 1520 may store various data and may also store an information processing program 1530, which is executed under the control of processor 1510.

[0238] In addition, as shown in FIG15 , network device 1500 may further include: a transceiver 1540 and an antenna 1550, etc.; wherein, the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 1500 does not necessarily include all the components shown in FIG15 ; in addition, network device 1500 may also include components not shown in FIG15 , and reference may be made to the prior art for details.

[0239] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.

[0240] Figure 16 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 16 , terminal device 1600 may include a processor 1610 and a memory 1620. Memory 1620 stores data and programs and is coupled to processor 1610. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.

[0241] For example, the processor 1610 may be configured to execute a program to implement the data receiving method as described in the embodiment of the first aspect. For example, the processor 1610 may be configured to perform the following control: the terminal device receives first indication information; and after receiving the first indication information and before the first time point, uses the first configuration authorization opportunity of the first configuration authorization to send uplink data to the target cell.

[0242] As shown in Figure 16 , the terminal device 1600 may further include: a communication module 1630, an input unit 1640, a display 1650, and a power supply 1660. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 1600 does not necessarily include all of the components shown in Figure 16 , and these components are not essential. Furthermore, the terminal device 1600 may also include components not shown in Figure 16 , for which reference may be made to the prior art.

[0243] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the data receiving method described in the embodiment of the first aspect.

[0244] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the data receiving method described in the embodiment of the first aspect.

[0245] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the data sending method described in the embodiment of the second aspect.

[0246] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the data sending method described in the embodiment of the third aspect.

[0247] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0248] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0249] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0250] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0251] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

[0252] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:

[0253] 1. A data receiving method, applied to a terminal device, comprising:

[0254] receiving first instruction information;

[0255] After receiving the first indication information and before the first time point, uplink data is sent to the target cell using a first configured grant occasion of the first configured grant.

[0256] 2. The method according to Note 1, wherein the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam.

[0257] 3. The method according to Note 2, wherein the configuration authorization timing of the first configuration authorization includes the first configuration authorization timing.

[0258] 4. The method according to Note 3, wherein the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, and / or the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing.

[0259] 5. The method according to Note 4, wherein the uplink beam applied at the first configuration authorization timing and / or the downlink beam applied at the first configuration authorization timing are indicated by the first indication information, the second indication information, or the third indication information;

[0260] The first indication information at least includes a cell switch command; the second indication information at least includes a DCI; and the third indication information at least includes a MAC CE.

[0261] 6. The method according to Note 1, wherein the method further comprises: after the second time point, using the second configuration authorization timing of the second configuration authorization to send uplink data to the target cell.

[0262] 7. The method according to Note 6, wherein there is no correlation between the configuration authorization timing of the second configuration authorization and the uplink beam and / or downlink beam.

[0263] 8. The method according to Note 6, wherein the method further includes: first using the first configuration authorization to send uplink data to the target cell, and then using the second configuration authorization to send uplink data to the target cell.

[0264] 9. According to the method of Supplement 1 or 6, the first time point and / or the second time point are determined according to at least one of the following:

[0265] Determining that the uplink data sent to the target cell for the first time is successfully received;

[0266] Applying a TCI state different from the TCI state indicated by the first indication information command;

[0267] Applying a TCI state from a different TCI state pool than the TCI state pool used for Layer 1 / Layer 2 Triggered Mobility (LTM);

[0268] The first configuration authorization is released; or

[0269] The second configuration authorization is configured.

[0270] 10. The method according to Supplementary Note 9, wherein the uplink data sent to the target cell for the first time is determined to be successfully received according to at least one of the following:

[0271] Receiving DCI without DL assignment;

[0272] Receive the UE Contention Resolution Identity MAC CE;

[0273] Receive DCI with CRC scrambled by C-RNTI;

[0274] A Radio Link Control (RLC) layer ACK is received for uplink data sent to the target cell for the first time.

[0275] 11. The method according to Note 10, wherein determining that the uplink data sent to the target cell for the first time is successfully received includes: determining that the uplink data sent to the target cell for the first time is successfully received.

[0276] 12. The method according to Note 1, wherein the method further comprises: after the first time point, considering that the first configuration authorization is released.

[0277] 13. The method according to Note 6, wherein the first time point and the second time point are the same or different.

[0278] 14. The method according to Supplementary Note 6, further comprising:

[0279] The first configuration authorization and / or the second configuration authorization are configured.

[0280] 15. The method according to Note 14, wherein the method further comprises: determining the second configuration authorization based on the configured first configuration authorization.

[0281] 16. The method according to Supplement 14, wherein the method further comprises:

[0282] The first configuration grant and / or the second configuration grant are configured in a candidate cell configuration; or,

[0283] The first configuration grant and / or the second configuration grant are configured outside the candidate cell configuration.

[0284] 17. The method according to Supplement 14, wherein the method further comprises:

[0285] The association between the configuration authorization timing of the first configuration authorization and the uplink beam and / or downlink beam is determined according to first configuration information, wherein the first configuration information is included in the configuration of the first configuration authorization.

[0286] 18. The method according to any one of Notes 13 to 17, wherein the first configuration authorization is configuration authorization type 1, and the second configuration authorization is configuration authorization type 1 or configuration authorization type 2.

[0287] 19. The method according to Note 1, wherein the sending of uplink data to the target cell using the first configured grant occasion (configured grant occasion) of the first configured grant comprises:

[0288] Determine, according to the second configuration information, that after receiving the first indication information, use the first configuration authorization to send the first uplink data to the target cell.

[0289] 20. The method according to Note 4, wherein the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam, comprising:

[0290] The configuration grant timing of the first configuration grant is associated with the first reference signal and / or the second reference signal.

[0291] 21. The method according to supplementary note 20, wherein the uplink beam associated with the first configuration grant opportunity is the same as the uplink beam applied at the first configuration grant opportunity, comprising: the configuration grant opportunity of the first configuration grant is associated with the first reference signal;

[0292] The first associated reference signal is:

[0293] is a reference signal in a joint TCI state, an uplink TCI state, or a TCI state applied at the first configuration authorization timing; or

[0294] The reference signal is quasi-co-located with the joint TCI state, the uplink TCI state, or the TCI state applied at the first configuration authorization opportunity.

[0295] 22. The method according to Note 20, wherein the downlink beam associated with the first configuration grant timing is the same as the downlink beam applied at the first configuration grant timing, comprising: the configuration grant timing of the first configuration grant is associated with the second reference signal;

[0296] The second associated reference signal is:

[0297] is a reference signal in a joint TCI state or a downlink TCI state or a TCI state applied at the first configuration authorization timing, or

[0298] Quasi-co-located with the reference signal in the joint TCI state or downlink TCI state or TCI state applied at the first configuration authorization opportunity.

[0299] 23. The method according to Note 21 or 22, wherein the first reference signal and / or the second reference signal is SSB or CSI-RS or TRS.

[0300] 24. The method according to Note 3 or 7, wherein the uplink beam includes at least one of the following: a joint TCI state, an uplink TCI state, or a TCI state; and the downlink beam includes at least one of the following: a joint TCI state, a downlink TCI state, or a TCI state.

[0301] 25. The method according to Note 1, wherein the method further comprises: including an indication of a downlink beam in the uplink data sent to the target cell.

[0302] 26. A data transmission method, applied to a network device, comprising:

[0303] Sending first instruction information to the terminal device;

[0304] After receiving the first indication information and before the first time point, the terminal device uses the first configured grant occasion of the first configured grant to send uplink data to the target cell.

[0305] 27. The method according to Note 26, wherein the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam.

[0306] 28. The method according to Note 27, wherein the configuration authorization timing of the first configuration authorization includes the first configuration authorization timing.

[0307] 29. The method according to Note 28, wherein the uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, and / or the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing.

[0308] 30. The method according to Note 29, wherein the configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam, comprising:

[0309] The configuration grant timing of the first configuration grant is associated with the first reference signal and / or the second reference signal.

[0310] 31. The method according to note 30, wherein the uplink beam associated with the first configuration grant opportunity is the same as the uplink beam applied at the first configuration grant opportunity, comprising: the configuration grant opportunity of the first configuration grant is associated with the first reference signal;

[0311] The first associated reference signal is:

[0312] is a reference signal in a joint TCI state, an uplink TCI state, or a TCI state applied at the first configuration authorization timing; or

[0313] The reference signal is quasi-co-located with the joint TCI state, the uplink TCI state, or the TCI state applied at the first configuration authorization opportunity.

[0314] 32. The method according to note 30, wherein the downlink beam associated with the first configuration grant timing is the same as the downlink beam applied at the first configuration grant timing, comprising: the configuration grant timing of the first configuration grant is associated with the second reference signal;

[0315] The second associated reference signal is:

[0316] is a reference signal in a joint TCI state or a downlink TCI state or a TCI state applied at the first configuration authorization timing, or

[0317] Quasi-co-located with the reference signal in the joint TCI state or downlink TCI state or TCI state applied at the first configuration authorization opportunity.

[0318] 33. The method according to Note 26, wherein the method further comprises: configuring the first configuration authorization and / or the second configuration authorization.

[0319] 34. A terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method as described in any one of Notes 1 to 25.

[0320] 35. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method as described in any one of Notes 26 to 33.

[0321] 35. A communication system comprising:

[0322] A network device that sends first indication information;

[0323] A terminal device receives the first indication information; and after receiving the first indication information and before a first time point, uses a first configured grant occasion of a first configured authorization to send uplink data to a target cell.

Claims

1. A data receiving device, configured in a terminal device, wherein: The data receiving device comprises: A first receiving unit, which receives first indication information; A first sending unit is configured to send uplink data to a target cell using a first configuration authorization opportunity of a first configuration authorization after receiving the first indication information and before a first time point.

2. The device according to claim 1, wherein: The configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam; the configuration authorization timing of the first configuration authorization includes the first configuration authorization timing.

3. The device according to claim 2, wherein: The uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, and / or the downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing.

4. The device according to claim 3, wherein: The uplink beam applied at the first configuration authorization timing and / or the downlink beam applied at the first configuration authorization timing are indicated by the first indication information or the second indication information or the third indication information; The first indication information at least includes a cell switch command (cell switch command); the second indication information at least includes downlink control information (downlink control information, DCI); and the third indication information at least includes a MAC control element (MAC Control Element, MAC CE).

5. The device according to claim 1, wherein: The first sending unit further: After the second time point, uplink data is sent to the target cell using a second configuration authorization opportunity of the second configuration authorization.

6. The device according to claim 5, wherein: There is no correlation between the configuration authorization timing of the second configuration authorization and the uplink beam and / or downlink beam.

7. The device according to claim 5, wherein: The first time point and / or the second time point is determined according to at least one of the following: Determining that the uplink data sent to the target cell for the first time is successfully received; Applying a transmission configuration indication state (TCI state) different from the transmission configuration indication state (TCI state) indicated by the first indication information command; Applications from L1 / L2 Triggered Mobility (LTM) TCI state pool: TCI state of different TCI state pools; The first configuration authorization is released; or The second configuration authorizes being configured.

8. The device according to claim 7, wherein: Determining whether the uplink data sent to the target cell for the first time is successfully received according to at least one of the following: Receiving DCI without DL assignment; Receiving a UE Contention Resolution Identity MAC CE; Receive a DCI whose cyclic redundancy check code (CRC) is scrambled by a cell-radio network temporary identifier (Cell-Radio Network Temporary Identifier, C-RNTI); A radio link control (RLC) layer acknowledgment (ACK) is received for uplink data sent to the target cell for the first time.

9. The device according to claim 1, wherein: The data receiving device also includes: A determining unit, which considers that the first configuration authorization is released after the first time point.

10. The device according to claim 5, wherein: The first time point and the second time point are the same or different.

11. The device according to claim 5, wherein: The data receiving device also includes: A first configuration unit is configured with the first configuration authorization and / or the second configuration authorization.

12. The device according to claim 11, wherein The first configuration unit determines the second configuration authorization according to the configured first configuration authorization.

13. The device according to claim 11, wherein: The first configuration unit is configured with the first configuration authorization and / or the second configuration authorization in a candidate cell configuration; or, The first configuration unit is configured with the first configuration authorization and / or the second configuration authorization outside the candidate cell configuration.

14. The device according to claim 11, wherein: The first configuration unit determines the association between the configuration authorization timing of the first configuration authorization and the uplink beam and / or downlink beam according to first configuration information, wherein the first configuration information is included in the configuration of the first configuration authorization.

15. The device according to claim 3, wherein: The configuration authorization timing of the first configuration authorization is associated with an uplink beam and / or a downlink beam, including: the configuration authorization timing of the first configuration authorization is associated with a first reference signal and / or a second reference signal.

16. The device according to claim 15, wherein: The uplink beam associated with the first configuration authorization timing is the same as the uplink beam applied at the first configuration authorization timing, including: the configuration authorization timing of the first configuration authorization is associated with the first reference signal; wherein the associated first reference signal: is a reference signal in a joint transmission configuration indication state (TCI state) or an uplink transmission configuration indication state (TCI state) or a transmission configuration indication state (TCI state) applied at the first configuration authorization timing; or, is quasi-co-located with a reference signal in a joint transmission configuration indication state (TCI state) or an uplink transmission configuration indication state (TCI state) or a transmission configuration indication state (TCI state) applied at the first configuration authorization timing; and / or The downlink beam associated with the first configuration authorization timing is the same as the downlink beam applied at the first configuration authorization timing, including: the configuration authorization timing of the first configuration authorization is associated with the second reference signal; wherein the associated second reference signal: is a reference signal in the joint transmission configuration indication state (TCI state) or downlink transmission configuration indication state (TCI state) or transmission configuration indication state (TCI state) applied at the first configuration authorization timing, or is quasi-co-located with the reference signal in the joint transmission configuration indication state (TCI state) or downlink transmission configuration indication state (TCI state) or transmission configuration indication state (TCI state) applied at the first configuration authorization timing.

17. The device according to claim 15, wherein: The first reference signal and / or the second reference signal includes: a measurement system synchronization block (System Synchronization Block, SSB), or a channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), or a tracking reference signal (Tracking Reference Signal, TRS).

18. The device according to claim 5, wherein: The first configuration authorization is configuration authorization type 1, and / or the second configuration authorization is configuration authorization type 1 or configuration authorization type 2.

19. The device according to claim 1, wherein: The first sending unit includes an indication of a downlink beam in the uplink data sent to the target cell.

20. A data receiving device, configured in a network device, the data receiving device comprising: A second sending unit, which sends the first indication information to the terminal device; Wherein, after receiving the first indication information and before the first time point, the terminal device uses the first configuration authorization timing of the first configuration authorization to send uplink data to the target cell.

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