Communication method for cell, communication node and storage medium

Abstract

A communication method for a cell, comprising: receiving instruction signaling, the instruction signaling comprising information for a cell, and the cell comprising at least one of a primary cell and a secondary cell; and performing an operation for the cell on the basis of the instruction signaling.

Description

Regarding the communication methods, communication nodes, and storage media of the cell Technical Field

[0001] This application relates to the field of wireless communication technology, for example to a communication method, communication node, and storage medium for a cell. Background Technology

[0002] Carrier aggregation (CA) involves the coordinated operation of multiple carriers. The primary carrier carries signaling and manages other carriers, corresponding to the primary cell (PCell). Secondary carriers are used to extend bandwidth and enhance data rates; their addition and removal are determined by the primary carrier, corresponding to secondary cells (SCells). In next-generation communication networks, how to enhance CA and fully utilize the resources of secondary cells (SCells) to improve energy efficiency is a pressing issue. Summary of the Invention

[0003] This application provides a communication method, communication node, and storage medium for a cell.

[0004] This application provides a communication method for a cell, applied to a first communication node, including:

[0005] Receive instruction signaling, the instruction signaling including information about a cell, the cell including at least one of a primary cell and a secondary cell;

[0006] Perform operations related to the cell according to the indicated signaling.

[0007] This application also provides a communication method for a cell, applied to a second communication node, including:

[0008] Send an instruction signaling message to a first communication node, the instruction signaling message including information about a cell, the cell including at least one of a primary cell and a secondary cell, the instruction signaling message being used to instruct the first communication node to perform an operation about the cell.

[0009] This application also provides a communication node, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the above-described cell-related communication method.

[0010] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described cell communication method. Attached Figure Description

[0011] Figure 1 is a flowchart of a cell communication method provided in an embodiment of this application;

[0012] Figure 2 is a flowchart of another cell communication method provided in an embodiment of this application;

[0013] Figure 3 is a schematic diagram of a process for receiving RRC or MAC CE signaling according to an embodiment of this application;

[0014] Figure 4 is a schematic diagram of another process for receiving RRC or MAC CE signaling according to an embodiment of this application;

[0015] Figure 5 is a schematic diagram of the structure of a communication device for a cell provided in an embodiment of this application;

[0016] Figure 6 is a schematic diagram of another communication device for a cell provided in an embodiment of this application;

[0017] Figure 7 is a schematic diagram of the hardware structure of a communication node provided in an embodiment of this application. Detailed Implementation

[0018] Regarding carrier aggregation, it can be an intra-band or inter-band application scenario, without limiting the two types of serving cells, i.e., without limiting the coverage of the primary and secondary cells. For ease of description, it can be assumed in the embodiments of this application that the PCell and SCell have the same coverage. The PCell is responsible for the initial access of the first communication node (such as User Equipment (UE)) and Radio Resource Control (RRC) communication with the UE; the SCell can be added during RRC reconfiguration to provide additional radio resources. Communication between the first communication node (such as the UE) and the second communication node (such as the gNB) is mostly supported by the PCell. The PCell can also perform secondary cell measurement and reporting to implement the SCell addition, modification, and deletion process; the PCell can also perform Channel State Information (CSI) reporting to activate / deactivate the SCell. The PCell can always be active, while the SCell can be deactivated or activated by default. On the active carrier (SCell), uplink transmissions can include Sounding Reference Signal (SRS), CSI, and / or Physical Uplink Control Channel (PUCCH). The UE has a Random Access Channel (RACH) on only one carrier (PCell), and the base station can schedule these channels within and between carriers (as in the case of Physical Downlink Control Channel (PDCCH) scheduling).

[0019] In the embodiments of this application, for a UE, its SCell can be the primary cell of another UE, or it can be understood as a cell, serving cell, carrier, frequency band, bandwidth part (BWP), or frequency resource element. PCell can be understood as a cell, serving cell, carrier, frequency band, bandwidth part, or frequency resource element. Carrier can be understood as a cell, serving cell, frequency band, bandwidth part, or frequency resource element. Synchronization Signal / PBCH (SSB) is equivalent to Secondary Synchronization Signal (SSS), Primary Synchronization Signal (PSS), Synchronization Signal (SS), Measurement Signal, Signal of Idle or Inactive UE, Signal of Connected UE, Physical Broadcast Channel (PBCH), or Master Information Block (MIB).

[0020] It should be noted that the following embodiments are intended to help understand the communication and technology related to primary and secondary cells provided in this application, but do not limit the scope of the claimed subject matter. The embodiments and features described in this application can be arbitrarily combined with each other. Furthermore, the 5G terminology used is for ease of description and explanation, but the technology disclosed in this application is not limited to 5G technology and can also be applied to wireless communication systems and scenarios using other protocols.

[0021] Figure 1 is a flowchart of a communication method for a cell according to an embodiment of this application. This method can be applied to a first communication node, which can be a user equipment (UE), such as a mobile phone, computer, or vehicle-mounted device. A second communication node can be a network device, such as a base station, access point, or transmission / reception point. As shown in Figure 1, the method includes:

[0022] 110, Receive instruction signaling, the instruction signaling including information about a cell, the cell including at least one of a primary cell and a secondary cell;

[0023] 120, Perform operations related to the cell according to the indicated signaling.

[0024] In this embodiment, the second communication node can send an indication signaling message to the first communication node, and the first communication node can perform cell-related operations based on this indication signaling message. For example, if a UE in connected state configures PCell and SCell, the indication signaling message can trigger the first communication node to perform a new action in the SCell. In this case, all actions supported by PCell can be performed in the SCell, such as instructing the UE to establish an RRC connection with the SCell. Alternatively, if a UE in connected state configures PCell and SCell, the indication signaling message can trigger the UE to perform a primary cell handover, such as switching from PCell#1 to PCell#2. During this process, the SCell maintains the connection and performs data transmission. Or, if a UE in connected state configures PCell, the indication signaling message can trigger the UE to add a secondary primary cell (Secondary PCell) in a cell group, which can also be called a candidate primary cell or virtual primary cell.

[0025] Based on this, CA can be enhanced by making full use of PCell and SCell resources to improve the capacity of the communication system and the robustness of network connections; through indication signaling, the transmission period of the common signal can be adjusted when the SCell becomes the PCell; and the reduction of the common signal on the SCell can also improve network energy efficiency.

[0026] In one embodiment, the operation concerning the secondary cell includes at least one of the following:

[0027] Radio Resource Control (RRC) connection re-establishment; Radio Resource Control (RRC) connection switching; The first communication node's RRC connection with the base station in the primary cell is changed to an RRC connection with the base station in the secondary cell; The primary cell connection fails; The primary cell operation is not executed; The secondary cell becomes the primary cell and performs the primary cell operation; or an RRC connection is established with the base station.

[0028] In one embodiment, the indication signaling includes Media Access Control Element (MAC CE) signaling or RRC signaling sent by the primary cell or secondary cell.

[0029] In one embodiment, performing an operation regarding the secondary cell according to the instruction signaling includes:

[0030] After a preset time following the time point at which MAC CE signaling or RRC signaling is received, the operation concerning the secondary cell is performed; or,

[0031] The operation concerning the secondary cell is performed upon receiving MAC CE signaling or RRC signaling, or when triggered by a preset event.

[0032] In one embodiment, the UE receives a MAC CE and performs the operation regarding the secondary cell after a preset time in the time slot where the Hybrid Automatic Repeat request-Acknowledge (HARQ-ACK) information is located;

[0033] In one embodiment, the preset time is x milliseconds, for example, x = 3. Alternatively, the preset time is a pre-configured x milliseconds, x slots, where x is a positive integer.

[0034] In one embodiment, the time point at which the UE sends the Radio Resource Management (RRM) measurement report, or the time point at which the UE sends the Physical Random Access Channel (PRACH), or the time point at which the UE sends MSG4, is the time point at which the secondary cell becomes the primary cell. Alternatively, the time point at which the UE sends the RRM measurement report, PRACH, and MSG4, plus a preset time offset T, is the time point at which the secondary cell becomes the primary cell. For example, T = x milliseconds, x slots, where x is a positive integer.

[0035] In one embodiment, the preset event that triggers the execution of the operation concerning the secondary cell may include at least one of the following:

[0036] HARQ-ACK feedback; Radio Link Failure (RLF) reporting; or UE auxiliary information reporting.

[0037] In one embodiment, performing operations regarding the cell according to the indication signaling includes:

[0038] If no new MAC signaling or RRC signaling is received before the end of a preset time following the time point after receiving MAC CE signaling or RRC signaling, the operation regarding the secondary cell is performed.

[0039] In one embodiment, the operation of the primary cell includes at least one of the following:

[0040] Perform radio resource management measurements and send measurement reports; send random access messages at the corresponding random access time; schedule the primary cell and perform HARQ-ACK feedback behavior; or perform carrier activation behavior of the original primary cell.

[0041] In one embodiment, the time point at which the first communication node sends the Radio Resource Management (RRM) measurement report is the time point at which the secondary cell becomes the primary cell; or,

[0042] The time when the first communication node sends the Physical Random Access Channel (PRACH) is the time when the secondary cell becomes the primary cell.

[0043] In one embodiment, the operation of the primary cell includes at least one of the following:

[0044] Switching from the first primary cell to the second primary cell; or the first communication node maintaining a connection with the secondary cell.

[0045] In one embodiment, the operation of the secondary cell includes at least one of the following:

[0046] Disconnect from the secondary cell or the connection to the secondary cell fails; or activate the secondary cell during the process of establishing an RRC connection with the second primary cell.

[0047] In one embodiment, the first communication node is in a connected state, and the first communication node is connected to the primary cell and the secondary cell respectively.

[0048] In one embodiment, performing operations regarding the cell according to the indication signaling includes:

[0049] The cell-related operations are performed in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling.

[0050] In one embodiment, the cell-related operations include:

[0051] Add or delete virtual primary cells in the corresponding cell group of the primary cell;

[0052] Activate or deactivate the primary cell in the cell group.

[0053] In one embodiment, the method further includes:

[0054] Send the activation request for the virtual primary cell to the second communication node;

[0055] Sending the activation request for the virtual primary cell includes sending at least one of the following: PRACH, Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), and Sounding Reference Signal (SRS).

[0056] In one embodiment, the indication signaling is used to instruct the first communication node to dynamically select the primary cell within the cell group.

[0057] In one embodiment, cell-related operations are performed in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling, including one of the following:

[0058] In the event of an RLF or beam failure in at least two primary cells of the cell group, the radio link connection of one of the primary cells is restored via a random access channel; in the event of an RLF or beam failure, random access to the primary cell is dynamically selected based on downlink measurement results; or in the event of desynchronization, random access is performed in the desynchronized primary cell.

[0059] In one embodiment, operations concerning the primary cell include at least one of the following:

[0060] Perform channel monitoring and reporting for the primary cell, channel monitoring for the primary cell within a cell group; perform channel monitoring for the primary cell, cell measurement for candidate primary cells; or perform cell measurement outside the primary cell group.

[0061] Figure 2 is a flowchart of a cell communication method provided in one embodiment of this application. This method can be applied to a second communication node. It should be noted that technical details not described in detail in this embodiment can be found in any of the above embodiments.

[0062] In one embodiment, the gNB triggers an indication signaling message and sends it to the UE. The UE then performs operations related to the primary and secondary cells based on the indication signaling message. For example, the gNB sends the indication signaling message based on the configuration information (including PRACH configuration information) of the indication signaling message.

[0063] As shown in Figure 2, the method provided in this embodiment includes:

[0064] 210. Send an indication signaling message to the first communication node, the indication signaling message including information about the cell, the cell including at least one of a primary cell and a secondary cell, the indication signaling message being used to instruct the first communication node to perform an operation about the cell.

[0065] In this embodiment, the first communication node can perform operations related to the primary and / or secondary cells according to the information of the primary and / or secondary cells indicated by the indication signaling. For example, when a UE in connected state configures PCell and SCell, the first communication node can perform new actions in the SCell according to the indication signaling. In this case, all actions supported by PCell can be performed in the SCell, such as instructing the UE to establish an RRC connection with the SCell. Alternatively, when a UE in connected state configures PCell and SCell, the first communication node can perform a primary cell handover according to the indication signaling, such as switching from PCell#1 to PCell#2, during which the SCell maintains its connection and transmission. Furthermore, when a UE in connected state configures PCell, the first communication node can add a secondary primary cell (also called a candidate primary cell or virtual primary cell) to a cell group according to the indication signaling. Based on this, CA can be enhanced, improving the communication system capacity and the robustness of network connections.

[0066] In one embodiment, the operation concerning the secondary cell includes at least one of the following:

[0067] Radio Resource Control (RRC) connection re-establishment; RRC connection handover; the first communication node's RRC connection with the base station in the primary cell is changed to an RRC connection with the base station in the secondary cell; the primary cell connection fails; the primary cell operation is not executed; the secondary cell becomes the primary cell and performs the primary cell operation; or an RRC connection is established with the terminal.

[0068] In one embodiment, the indication signaling includes MAC CE signaling or RRC signaling sent by the primary cell or secondary cell.

[0069] In one embodiment, the indication signaling is used to instruct the first communication node to perform the operation regarding the secondary cell after a preset time following the time point after receiving the MAC CE signaling or RRC signaling; or, to perform the operation regarding the secondary cell upon receiving the MAC CE signaling or RRC signaling and upon being triggered by a preset event.

[0070] In one embodiment, the indication signaling is used to instruct the first communication node to perform the operation regarding the secondary cell if no new MAC CE signaling or RRC signaling is received before the end of a preset time following the time point after receiving the MAC CE signaling or RRC signaling.

[0071] In one embodiment, the operation of the primary cell includes at least one of the following:

[0072] Configure radio resource management measurement and receive measurement reports; receive random access messages at the corresponding random access time; schedule the primary cell and receive HARQ-ACK feedback behavior; or the carrier activation behavior of the original primary cell.

[0073] In one embodiment, the time point at which the first communication node sends the RRM measurement report is the time point at which the secondary cell becomes the primary cell; or, the time point at which the first communication node sends the PRACH is the time point at which the secondary cell becomes the primary cell.

[0074] In one embodiment, the operation of the primary cell includes at least one of the following:

[0075] Switching from the first primary cell to the second primary cell; or the first communication node maintaining a connection with the secondary cell.

[0076] In one embodiment, the operation of the secondary cell includes at least one of the following:

[0077] Disconnect from the secondary cell or the connection to the secondary cell fails; or activate the secondary cell during the process of establishing an RRC connection with the second primary cell.

[0078] In one embodiment, the first communication node is in a connected state, and the first communication node is connected to the primary cell and the secondary cell respectively.

[0079] In one embodiment, the indication signaling is used to instruct the first communication node to perform cell-related operations in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling.

[0080] In one embodiment, the cell operation includes:

[0081] Add or delete virtual primary cells in the corresponding cell group of the primary cell;

[0082] Activate or deactivate the primary cell in the cell group.

[0083] In one embodiment, the method further includes:

[0084] Receive the activation request for the virtual primary cell sent by the first communication node;

[0085] Receiving the activation request of the virtual primary cell includes receiving at least one of the following: PRACH, PUSCH, PUCCH, or SRS.

[0086] In one embodiment, the indication signaling is used to instruct the first communication node to dynamically select the primary cell within the cell group.

[0087] In one embodiment, cell-related operations are performed in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling, including one of the following:

[0088] In the event of an RLF or beam failure in at least two primary cells of the cell group, the radio link connection of one of the primary cells is restored via a random access channel; in the event of an RLF or beam failure, random access to the primary cell is dynamically selected based on downlink measurement results; or in the event of desynchronization, random access is performed in the desynchronized primary cell.

[0089] In one embodiment, operations concerning the primary cell include at least one of the following:

[0090] Perform channel monitoring and reporting for the primary cell, including channel monitoring of the primary cell within the cell group; perform channel monitoring of the primary cell and cell measurement of the candidate primary cell; or perform cell measurement outside the primary cell group.

[0091] The following examples illustrate the communication method for primary and secondary cells in this application.

[0092] Example 1

[0093] In this embodiment, the UE in the connected state configures PCell and SCell, indicating that signaling can trigger the UE to perform new actions in SCell. In this case, all actions supported by PCell can be performed in SCell.

[0094] In this embodiment, it is assumed that in a CA scenario, a UE is in a PCell and an active SCell is added.

[0095] As an example, when the Network anticipates PCell RLF or beam failure, UE1 establishes an RRC connection with SCell and its behavior on SCell changes.

[0096] As an example, when the channel quality of SCell is better than that of PCell and exceeds a threshold, UE1 establishes an RRC connection with SCell and its behavior on SCell changes.

[0097] As an example, instruction signaling can be used to instruct a UE to add, modify, or delete a SCell.

[0098] For example, the PCell can send RRC signaling to delete the SCell (the RRC signaling may not indicate the deletion of the SCell), the RRC signaling can indicate the disconnection of the link with the PCell, and it can also instruct the UE to establish an RRC connection with the SCell.

[0099] For example, set trigger conditions or trigger events based on the measurement report; and perform the above operations accordingly. For example, if the measurement report indicates that the channel conditions of PCell are below the threshold and the channel conditions of SCell are above the threshold, then perform the above operations to establish an RRC connection with SCell.

[0100] As an example, if the UE receives RRC or MAC CE signaling, receiving the signaling is the first step in the process. There may be a UE feedback process afterward, as shown in Figure 3 or Figure 4. This may include the operation of establishing RRC and the operation of completing RRC establishment.

[0101] As an example, indication signaling can be used to indicate whether a SCell is activated or deactivated.

[0102] For example, SCell sends a MAC CE signaling message to deactivate PCell.

[0103] For example, the SCell sends a MAC CE signaling to instruct the SCell to start a new behavior, such as a predefined SCell common search space. After the UE receives the MAC CE signaling, it starts monitoring the PDCCH in the SCell common search space.

[0104] For example, enabling new behaviors in SCell also includes performing Radio Resource Management (RRM) measurements and reporting them in SCell.

[0105] For example, enabling new behaviors in a SCell also includes: when the PRACH resource configured in the SCell is active, the UE can send a random access message (such as msg1) in the Rach Occasion (RO) resource corresponding to that SCell.

[0106] If the UE receives RRC or MAC CE signaling, receiving the signaling is the first step in this process. There may be a UE feedback process afterward, which may include the operation of establishing RRC, the operation of completing RRC establishment, and the process of the network sending messages, such as PCell deactivation completed and SCell completing the start of new behavior.

[0107] For example, the PCell sends a MAC CE signaling to deactivate the PCell; or the PCell sends a MAC CE signaling to instruct the SCell to initiate a new behavior, such as predefining the SCell common search space, and after the UE receives the MAC CE signaling, it starts monitoring the PDCCH in the SCell common search space; or the SCell initiating a new behavior also includes performing RRM measurements and measurement reports in the SCell; or the SCell initiating a new behavior also includes making the PRACH resources configured in the SCell effective, and the UE can send msg1 in the corresponding RO resources of the SCell.

[0108] As an example, the UE can trigger SCell activation or deactivation.

[0109] For example, the UE sends a MAC CE signaling in the SCell to initiate a new SCell behavior, such as a predefined SCell common search space. After receiving the MAC CE signaling, the UE starts monitoring the PDCCH in the SCell common search space. For example, the UE sends a MAC CE signaling in the PCell to initiate a new SCell behavior, such as a predefined SCell common search space. After receiving the MAC CE signaling, the UE starts monitoring the PDCCH in the SCell common search space.

[0110] Example 2

[0111] In this embodiment, the UE in the connected state configures PCell and SCell, and the indication signaling can trigger the UE to switch from PCell#1 to PCell#2. During this process, SCell maintains the connection transmission, that is, it switches from the state of PCell#1+SCell to the state of PCell#2+SCell.

[0112] For example, PCell#1 or SCell indicates the disconnection of the UE from PCell#1 via RRC signaling, and RRC signaling indicates the UE to establish an RRC connection with PCell#2. Moreover, during the process of establishing the RRC connection, SCell is added and activated at the same time; for example, SCell is activated in the connection establishment completion message.

[0113] As an example, RRC signaling indicates the handover procedure between two PCells, and the SCell is activated simultaneously during the RRC establishment process with the target cell.

[0114] Example 3

[0115] In this embodiment, the UE in the connected state configures PCell, and the signaling triggers the UE to add a virtual primary cell (Secondary PCell) in a cell group, that is, change from the state of PCell#1+SCell to the state of PCell#1+PCell#2+SCell.

[0116] As an example, adding a virtual PCell, such as in connected mode, allows the base station to use one or more cells as virtual primary cells. When a PCell connection fails, the virtual PCell or candidate PCell function is triggered or activated.

[0117] As an example, the UE triggers the activation of the aforementioned virtual PCell. After triggering, the UE reports to the base station via the PRACH, PUSCH, PUCCH and / or SRS of the connected cell to request activation.

[0118] As an example, the added PCell has the new behavior of the SCell in Example 1.

[0119] As an example, the added PCell can be configured independently as a PUCCH group.

[0120] As an example, an idle UE's PCell can be configured with multiple PCells as access candidates. This PCell group can be dynamically changed to activate or deactivate one or more PCells.

[0121] As an example, the RLF, or Beam Failure Recovery (BFR) procedure, is as follows:

[0122] The base station configures a reference signal (RS) resource set or parameters, and the UE determines the RFL through a timer (Timer or Counter);

[0123] The base station independently configures RS resource sets or parameters for PCell#1 and PCell#2;

[0124] The process of UE identifying or declaring RLF is as follows:

[0125] If the UE detects DL out of sync in a set of configured Synchronization Signal / PBCH (SSB) or RS resources, the UE reports an out of sync indication to the UE RRC layer, and the base station may then attempt some retransmissions.

[0126] After the counter reaches the threshold condition, the UE determines the RLF. Since the UE is also connected to another PCell#2, the RLF of PCell#1 can be recovered with the assistance of PCell#2. For example, PCell#2 can add a new secondary PCell based on the cell measurement report. PCells that meet the conditions based on channel quality such as Reference Signal Receiving Power (RSRP) or Reference Signal Receiving Quality (RSRQ) do not need to achieve RRC reconstruction through the RACH procedure.

[0127] As an example, if the UE determines RLF in both PCells, it can restore one of the PCells first through the RACH procedure.

[0128] As an example, when a UE in connected state detects an RLF (Remote Link Fault), it can dynamically select an access cell for random access based on downlink measurement results; under conditions such as desynchronization, the UE will preferentially choose to randomly access the desynchronized cell.

[0129] As an example, taking beam recovery as an example, if one beam fails, the other beams may still be usable.

[0130] As an example, UE capabilities include: 6G UE supports SCell deletion while establishing an RRC connection between the UE and the SCell; 6G UE supports handover to PCell while adding and activating the SCell.

[0131] As an example, this is achieved by utilizing the common channel configurations of PCell and SCell, such as SSB, PRACH, paging, and System Information Block (SIB) configurations, combined with adaptive adaptation (in conjunction with Network Energy Saving) technology.

[0132] This application also provides a communication device for primary and secondary cells. Figure 5 is a schematic diagram of the structure of a cell communication device provided in an embodiment of this application. As shown in Figure 5, the cell communication device includes:

[0133] The receiving module 310 is configured to receive indication signaling, the indication signaling including information about a cell, the cell including at least one of a primary cell and a secondary cell;

[0134] The execution module 320 is configured to perform operations related to the cell according to the instruction signaling.

[0135] In one embodiment, the operation concerning the secondary cell includes at least one of the following:

[0136] Radio Resource Control (RRC) connection re-establishment; RRC connection handover; the first communication node's RRC connection with the base station in the primary cell is changed to an RRC connection with the base station in the secondary cell; the primary cell connection fails; the primary cell operation is not executed; the secondary cell becomes the primary cell and performs the primary cell operation; or an RRC connection is established with the base station.

[0137] In one embodiment, the indication signaling includes MAC CE signaling or RRC signaling sent by the primary cell or secondary cell.

[0138] In one embodiment, the execution module 320 is configured to: perform the operation concerning the secondary cell after a preset time following the time point after receiving MAC CE signaling or RRC signaling; or, perform the operation concerning the secondary cell when receiving MAC CE signaling or RRC signaling and when triggered by a preset event.

[0139] In one embodiment, the preset event that triggers the execution of the operation concerning the secondary cell may include at least one of the following:

[0140] HARQ ACK feedback; RLF reporting; or UE auxiliary information reporting.

[0141] In one embodiment, the execution module 320 is configured to perform the operation concerning the secondary cell if no new MAC signaling or RRC signaling is received before the end of a preset time following the time point after receiving MAC CE signaling or RRC signaling.

[0142] In one embodiment, the operation of the primary cell includes at least one of the following:

[0143] Perform radio resource management measurements and send measurement reports; send random access messages at the corresponding random access time; schedule the primary cell and perform HARQ-ACK feedback behavior; or perform carrier activation behavior of the original primary cell.

[0144] In one embodiment, the time point at which the first communication node sends the RRM measurement report is the time point at which the secondary cell becomes the primary cell; or, the time point at which the first communication node sends the PRACH is the time point at which the secondary cell becomes the primary cell.

[0145] In one embodiment, the operation of the primary cell includes at least one of the following:

[0146] Switching from the first primary cell to the second primary cell; or the first communication node maintaining a connection with the secondary cell.

[0147] In one embodiment, the operation of the secondary cell includes at least one of the following:

[0148] Disconnect from the secondary cell or the connection to the secondary cell fails; or activate the secondary cell during the process of establishing an RRC connection with the second primary cell.

[0149] In one embodiment, the first communication node is in a connected state, and the first communication node is connected to the primary cell and the secondary cell respectively.

[0150] In one embodiment, the execution module 320 is configured to perform cell-related operations in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling.

[0151] In one embodiment, the cell-related operations include:

[0152] Add or delete virtual primary cells in the corresponding cell group of the primary cell;

[0153] Activate or deactivate the primary cell in the cell group.

[0154] In one embodiment, the method further includes:

[0155] Send the activation request for the virtual primary cell to the second communication node;

[0156] Sending the activation request for the virtual primary cell includes sending at least one of the following: PRACH, PUSCH, PUCCH, or SRS.

[0157] In one embodiment, the indication signaling is used to instruct the first communication node to dynamically select the primary cell within the cell group.

[0158] In one embodiment, cell-related operations are performed in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling, including one of the following:

[0159] In the event of an RLF or beam failure in at least two primary cells of the cell group, the radio link connection of one of the primary cells is restored via a random access channel; in the event of an RLF or beam failure, random access to the primary cell is dynamically selected based on downlink measurement results; or in the event of desynchronization, random access is performed in the desynchronized primary cell.

[0160] In one embodiment, operations concerning the primary cell include at least one of the following:

[0161] Perform channel monitoring and reporting for the primary cell, channel monitoring for the primary cell within a cell group; perform channel monitoring for the primary cell, cell measurement for candidate primary cells; or perform cell measurement outside the primary cell group.

[0162] This application also provides a communication device for primary and secondary cells. Figure 6 is a schematic diagram of the structure of a cell communication device provided in an embodiment of this application. As shown in Figure 6, the cell communication device includes:

[0163] The sending module 410 is configured to send an indication signaling to a first communication node. The indication signaling includes information about a cell, which includes at least one of a primary cell and a secondary cell. The indication signaling is used to instruct the first communication node to perform an operation related to the cell.

[0164] In one embodiment, the indication signaling is used to instruct the first communication node to establish an RRC connection with the secondary cell.

[0165] In one embodiment, the sending module 410 is specifically configured to send an indication signaling when it is predicted that the main cell radio link has failed or the beam has failed.

[0166] In one embodiment, the operation concerning the secondary cell includes at least one of the following:

[0167] Radio Resource Control (RRC) connection re-establishment; RRC connection handover; the first communication node's RRC connection with the base station in the primary cell is changed to an RRC connection with the base station in the secondary cell; the primary cell connection fails; the primary cell operation is not executed; the secondary cell becomes the primary cell and performs the primary cell operation; or an RRC connection is established with the terminal.

[0168] In one embodiment, the indication signaling includes MAC CE signaling or RRC signaling sent by the primary cell or secondary cell.

[0169] In one embodiment, the indication signaling is used to instruct the first communication node to perform the operation regarding the secondary cell after a preset time following the time point after receiving the MAC CE signaling or RRC signaling; or, to perform the operation regarding the secondary cell upon receiving the MAC CE signaling or RRC signaling and upon being triggered by a preset event.

[0170] In one embodiment, the indication signaling is used to instruct the first communication node to perform the operation regarding the secondary cell if no new MAC CE signaling or RRC signaling is received before the end of a period of time following the time point after receiving the MAC CE signaling or RRC signaling.

[0171] In one embodiment, the operation of the primary cell includes at least one of the following:

[0172] Configure radio resource management measurement and receive measurement reports; receive random access messages at the corresponding random access time; schedule the primary cell and receive HARQ-ACK feedback behavior; or the carrier activation behavior of the original primary cell.

[0173] In one embodiment, the time point at which the first communication node sends the RRM measurement report is the time point at which the secondary cell becomes the primary cell; or, the time point at which the first communication node sends the PRACH is the time point at which the secondary cell becomes the primary cell.

[0174] In one embodiment, the operation of the primary cell includes at least one of the following:

[0175] Switching from the first primary cell to the second primary cell; or the first communication node maintaining a connection with the secondary cell.

[0176] In one embodiment, the operation of the secondary cell includes at least one of the following:

[0177] Disconnect from the secondary cell or the connection to the secondary cell fails; or activate the secondary cell during the process of establishing an RRC connection with the second primary cell.

[0178] In one embodiment, the first communication node is in a connected state, and the first communication node is connected to the primary cell and the secondary cell respectively.

[0179] In one embodiment, the indication signaling is used to instruct the first communication node to perform cell-related operations in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling.

[0180] In one embodiment, the cell operation includes:

[0181] Add or delete virtual primary cells in the corresponding cell group of the primary cell;

[0182] Activate or deactivate the primary cell in the cell group.

[0183] In one embodiment, the device further includes:

[0184] The receiving module is configured to receive the activation request of the virtual primary cell sent by the first communication node;

[0185] Receiving the activation request of the virtual primary cell includes receiving at least one of the following: PRACH, PUSCH, PUCCH, or SRS.

[0186] In one embodiment, the indication signaling is used to instruct the first communication node to dynamically select the primary cell within the cell group.

[0187] In one embodiment, cell-related operations are performed in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling, including one of the following:

[0188] In the event of an RLF or beam failure in at least two primary cells of the cell group, the radio link connection of one of the primary cells is restored via a random access channel; in the event of an RLF or beam failure, random access to the primary cell is dynamically selected based on downlink measurement results; or in the event of desynchronization, random access is performed in the desynchronized primary cell.

[0189] In one embodiment, operations concerning the primary cell include at least one of the following:

[0190] Perform channel monitoring and reporting for the primary cell, channel monitoring for the primary cell within a cell group; perform channel monitoring for the primary cell, cell measurement for candidate primary cells; or perform cell measurement outside the primary cell group.

[0191] The communication device for primary and secondary cells proposed in this embodiment belongs to the same inventive concept as the communication method for primary and secondary cells proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as performing the communication method for primary and secondary cells.

[0192] This application also provides a communication node, which can be a first communication node or a second communication node. Figure 7 is a schematic diagram of the hardware structure of a communication node provided in an embodiment of this application. As shown in Figure 7, the communication node provided in this application includes a processor 510 and a memory 520. The processor 510 in the communication node can be one or more, and Figure 7 shows one processor 510 as an example. The memory 520 is configured to store one or more programs. The one or more programs are executed by the one or more processors 510, so that the one or more processors 510 implement the cell-related communication method as described in the embodiment of this application.

[0193] The communication node also includes: a communication device 530, an input device 540, and an output device 550.

[0194] The processor 510, memory 520, communication device 530, input device 540 and output device 550 in the communication node can be connected by a bus or other means. Figure 7 shows an example of connection by bus.

[0195] Input device 540 is configured to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the communication node. Output device 550 may include a display device such as a screen.

[0196] The communication device 530 may include a receiver and a transmitter. The communication device 530 is configured to perform information transmission and reception communication under the control of the processor 510.

[0197] The memory 520, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the communication method for primary and secondary cells described in the embodiments of this application (e.g., receiving module 310 and execution module 320 in the communication device for primary and secondary cells). The memory 520 may include a program storage area and a data storage area, wherein the program storage area may store the operating system and at least one application program required for a function; the data storage area may store data created based on the use of the communication node, etc. Furthermore, the memory 520 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 520 may further include memory remotely located relative to the processor 510, and these remote memories can be connected to the communication node via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0198] This application embodiment also provides a storage medium storing a computer program, which, when executed by a processor, implements any of the cell-related communication methods described in this application embodiment. The method includes:

[0199] The method includes receiving an instruction signaling message, the instruction signaling message including information about a cell, the cell including at least one of a primary cell and a secondary cell; and performing an operation about the cell according to the instruction signaling message. Alternatively, the method includes sending an instruction signaling message to a first communication node, the instruction signaling message including information about a cell, the cell including at least one of a primary cell and a secondary cell, the instruction signaling message being used to instruct the first communication node to perform an operation about the cell.

[0200] This application also provides a stored computer program product, including a computer program / instruction, which, when executed by a processor, implements any of the cell-related communication methods described in this application.

[0201] The computer storage medium in this application embodiment can be any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. For example, a computer-readable storage medium can be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination thereof. The computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0202] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit programs for use by or in connection with an instruction execution system, apparatus, or device.

[0203] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, radio frequency (RF), etc., or any suitable combination thereof.

[0204] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0205] This application also provides a computer program product, including a computer program / instructions, which, when executed by a processor, implement the communication method for primary and secondary cells as described in any of the above embodiments.

[0206] The above description is merely an exemplary embodiment of this application and is not intended to limit the scope of protection of this application.

[0207] Those skilled in the art will understand that the term user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing portable web browsers, or vehicle-mounted mobile stations.

[0208] Generally, the various embodiments of this application can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although this application is not limited thereto.

[0209] Embodiments of this application can be implemented by executing computer program instructions through the data processor of a mobile device, for example, in a processor entity, or through hardware, or through a combination of software and hardware. The computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages.

[0210] Any block diagram of logical flow in the accompanying drawings of this application may represent program operations, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program operations and logic circuits, modules, and functions. Computer programs may be stored in memory. Memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical storage devices and systems (Digital Video Disc (DVD) or Compact Disk (CD), etc.). Computer-readable media may include non-transitory storage media. Data processors may be of any type suitable to the local technical environment, such as, but not limited to, general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and processors based on multi-core processor architectures.

Claims

1. A communication method for a cell, applied to a first communication node, comprising: Receive instruction signaling, the instruction signaling including information about a cell, the cell including at least one of a primary cell and a secondary cell; Perform operations related to the cell according to the indicated signaling.

2. The method according to claim 1, wherein, The operation of auxiliary cells includes at least one of the following: Radio Resource Control (RRC) connection re-establishment; RRC connection switching; The first communication node, which was connected to the base station in the primary cell via RRC, is now connected to the base station in the secondary cell via RRC. The primary cell connection has failed. The main cell operation will not be executed; The secondary cell becomes the primary cell and performs primary cell operations; or Establish an RRC connection with the base station.

3. The method according to claim 1, wherein, The indication signaling includes the Media Access Control (MAC) CE signaling or RRC signaling sent by the primary or secondary cell.

4. The method according to claim 3, wherein, Perform operations regarding the secondary cell according to the instruction signaling, including: After a preset time following the time point at which MAC CE signaling or RRC signaling is received, the operation concerning the secondary cell is performed; or, The operation concerning the secondary cell is performed upon receiving MAC CE signaling or RRC signaling, or when triggered by a preset event.

5. The method according to claim 3, wherein, Performing cell-related operations according to the instruction signaling includes: If no new MAC CE or RRC signaling is received before the end of a preset time following the time point at which MAC CE or RRC signaling is received, the operation concerning the secondary cell is performed.

6. The method according to claim 1, wherein, Operations related to the main cell include at least one of the following: Perform wireless resource management measurements and send measurement reports; At the corresponding random access time, a random access message is sent; The scheduling of the primary cell includes a hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) feedback behavior; or The carrier activation behavior of the original main cell.

7. The method according to claim 6, wherein, The time point at which the first communication node sends the Radio Resource Management (RRM) measurement report is the time point at which the secondary cell becomes the primary cell; or... The time point at which the first communication node sends the Physical Random Access Channel (PRACH) is the time point at which the secondary cell becomes the primary cell.

8. The method according to claim 1, wherein, Operations related to the main cell include at least one of the following: Switching from the first primary cell to the second primary cell; or the first communication node maintaining a connection with the secondary cell.

9. The method according to claim 8, wherein, The operation of auxiliary cells includes at least one of the following: The connection to the secondary cell is disconnected or the connection to the secondary cell fails; or During the process of establishing an RRC connection with the second primary cell, the secondary cell is activated.

10. The method according to any one of claims 1-9, wherein, The first communication node is in a connected state, and it is connected to both the primary cell and the secondary cell.

11. The method according to claim 1, wherein, Performing cell-related operations according to the instruction signaling includes: The cell-related operations are performed in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling.

12. The method according to claim 11, wherein, The operations related to the cell include: Add or delete virtual primary cells in the corresponding cell group of the primary cell; Activate or deactivate the primary cell in the cell group.

13. The method of claim 12, further comprising: Send the activation request for the virtual primary cell to the second communication node; Sending the activation request for the virtual primary cell includes sending at least one of the following: PRACH, Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), or Sound Reference Signal (SRS).

14. The method according to claim 11, wherein, The instruction signaling is used to instruct the first communication node to dynamically select the primary cell within the cell group.

15. The method according to claim 11, wherein, Perform cell-related operations in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling, including one of the following: In the event of a radio link failure (RLF) or beam fault in at least two primary cells of the cell group, the radio link connection of one of the primary cells shall be restored via a random access channel. In the event of an RLF or beam fault detection, the primary cell is dynamically selected for random access based on downlink measurement results; or In the event of desynchronization, random access is performed in the desynchronized primary cell.

16. The method according to claim 11, wherein, Operations related to the main cell include at least one of the following: Perform channel monitoring and reporting for the primary cell, including channel monitoring of the primary cells within the cell group; Perform channel monitoring of the primary cell and cell measurement of the candidate primary cell; or Perform cell measurements outside the main cell group.

17. A communication method for a cell, applied to a second communication node, comprising: Send an instruction signaling message to a first communication node, the instruction signaling message including information about a cell, the cell including at least one of a primary cell and a secondary cell, the instruction signaling message being used to instruct the first communication node to perform an operation about the cell.

18. The method according to claim 17, wherein, The operation of auxiliary cells includes at least one of the following: Radio Resource Control (RRC) connection re-establishment; RRC connection switching; The first communication node, which was connected to the base station in the primary cell via RRC, is now connected to the base station in the secondary cell via RRC. The primary cell connection has failed. The main cell operation will not be executed; The secondary cell becomes the primary cell and performs primary cell operations; or Establish an RRC connection with the terminal.

19. The method of claim 17, wherein, The indication signaling includes the Media Access Control (MAC) CE signaling or RRC signaling sent by the primary or secondary cell.

20. The method according to claim 19, wherein, The instruction signaling is used to instruct the first communication node to perform the operation regarding the secondary cell after a preset time following the time point after receiving the MAC CE signaling or RRC signaling; or, The operation concerning the secondary cell is performed upon receiving MAC CE signaling or RRC signaling, or when triggered by a preset event.

21. The method according to claim 19, wherein, The instruction signaling is used to instruct the first communication node to perform the operation regarding the secondary cell if it does not receive a new MAC CE signaling or RRC signaling before the end of a preset time following the time point after receiving the MAC CE signaling or RRC signaling.

22. The method according to claim 17, wherein, Operations related to the main cell include at least one of the following: Configure wireless resource management measurements and receive measurement reports; At the corresponding random access time, the resource receives the random access message; The scheduling of the primary cell includes receiving HARQ-ACK feedback behavior for automatic retransmission request confirmation information. or The carrier activation behavior of the original main cell.

23. The method according to claim 22, wherein, The time point at which the first communication node sends the Radio Resource Management (RRM) measurement report is the time point at which the secondary cell becomes the primary cell; or... The time point at which the first communication node sends the Physical Random Access Channel (PRACH) is the time point at which the secondary cell becomes the primary cell.

24. The method of claim 17, wherein, Operations related to the main cell include at least one of the following: Switching from the first primary cell to the second primary cell; or the first communication node maintaining a connection with the secondary cell.

25. The method according to claim 24, wherein, The operation of auxiliary cells includes at least one of the following: The connection to the secondary cell is disconnected or the connection to the secondary cell fails; or During the process of establishing an RRC connection with the second primary cell, the secondary cell is activated.

26. The method according to any one of claims 17-25, wherein, The first communication node is in a connected state, and it is connected to both the primary cell and the secondary cell.

27. The method according to claim 17, wherein, The instruction signaling is used to instruct the first communication node to perform cell-related operations in the corresponding cell group of the primary cell according to MAC CE signaling or RRC signaling.

28. The method according to claim 27, wherein, Operations related to the aforementioned cell include: Add or delete virtual primary cells in the corresponding cell group of the primary cell; Activate or deactivate the primary cell in the cell group.

29. The method of claim 28, further comprising: Receive the activation request for the virtual primary cell sent by the first communication node; Receiving the activation request of the virtual primary cell includes receiving at least one of the following: PRACH, Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), or Sound Reference Signal (SRS).

30. The method according to claim 27, wherein, The instruction signaling is used to instruct the first communication node to dynamically select the primary cell within the cell group.

31. A communication node, comprising: Memory, and one or more processors; The memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the cell communication method as described in any one of claims 1-30.

32. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the communication method for a cell as described in any one of claims 1-30.

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