A beam information reporting and receiving method and device

Abstract

A beam information reporting and receiving method and device, the method at least includes: a terminal device receives first activation signaling from a network device, the first activation signaling is used to activate a first cell, the first cell is a secondary cell with a physical uplink control channel (PUCCH); the terminal device measures a reference signal of the first cell and determines beam information of the first cell; the terminal device sends layer 2 signaling to the network device through a second cell, the layer 2 signaling includes the beam information of the first cell, and the second cell is a primary cell or a primary secondary cell corresponding to the first cell; by using the method and device of the embodiment of the application, the beam information of the first cell can be reported in the activation process of the first cell.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method and apparatus for beam information reporting and receiving. Background Technology

[0002] In existing communication systems, network devices can improve system capacity by configuring carrier aggregation (CA). CA refers to the technique of aggregating multiple component carriers (CCs) together to support greater transmission bandwidth. Among the multiple CCs aggregated by CA, there are primary component carriers (PCCs) and secondary component carriers (SCCs). The cell corresponding to a PCC is called the primary cell (Pcell), and the cell corresponding to an SCC is called the secondary cell (Scell). Secondary cells include those capable of transmitting the physical uplink control channel (PUCCH), which can be simply referred to as PUCCH secondary cells, and / or ordinary secondary cells without PUCCH transmission capabilities. How the terminal device reports the beam information of the PUCCH secondary cell to the network device during the activation process of the PUCCH secondary cell is the technical problem to be solved in the embodiments of this application. Summary of the Invention

[0003] This application provides a method and apparatus for beam information reporting and receiving, so as to realize beam information reporting of a first cell.

[0004] In a first aspect, a beam information reporting method is provided, comprising: a terminal device receiving a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell having a Physical Uplink Control Channel (PUCCH); the terminal device measuring a reference signal of the first cell to determine the beam information of the first cell; and the terminal device sending Layer 2 signaling to the network device through a second cell, the Layer 2 signaling including the beam information of the first cell, the second cell being a primary cell or a primary-secondary cell corresponding to the first cell.

[0005] Using the above method, during the activation process of the first cell, the terminal device can use the second cell to report the beam information of the first cell, thereby enabling the network device to obtain the beam information of the first cell and thus realize the activation of the first cell.

[0006] In one possible implementation, the aforementioned Layer 2 signaling includes Media Access Control (MAC) control element CE signaling.

[0007] In one possible implementation, the method further includes: the terminal device responding to the first activation signaling to determine whether the first cell is an unknown cell; if the first cell is an unknown cell, then performing the step of the terminal device measuring the reference signal of the first cell to determine the beam information of the first cell.

[0008] Since the beam information of the first cell has already been reported for known cells, there is no need to report it again. Beam reporting for the first cell is only necessary for unknown cells. In this embodiment, before measuring the reference signal of the first cell and determining its beam information, it is first determined whether the first cell is an unknown cell. This avoids performing the reference signal measurement and beam reporting process again for known cells, saving power consumption and signaling overhead on the terminal equipment.

[0009] Optionally, after the terminal device sends Layer 2 signaling to the network device through the second cell, the method further includes: the terminal device sending valid Channel State Information (CSI) to the network device, wherein the valid CSI indicates that the activation of the first cell is complete.

[0010] The overall process of the above method can be as follows: the network device sends an activation signaling message for the first cell to the terminal device; the terminal device responds to the activation signaling message and reports the beam information of the first cell through the second cell; based on the reported beam information of the first cell, the network device can configure TCI and / or uplink spatial relationship for the terminal device, where TCI is used to indicate the beam for the terminal device to receive downlink information, and uplink spatial relationship is used to indicate the beam for the terminal device to send uplink information. The terminal device sends a valid CSI to the network device, indicating that the activation of the first cell is complete. As can be seen from the above, in this embodiment, the beam information of the first cell can be reported through the second cell during the activation process of the first cell.

[0011] In one possible implementation, the process by which the terminal device measures the reference signal of the first cell and determines the beam information of the first cell includes: the terminal device measuring the reference signal of the first cell to obtain the measurement result of the reference signal; the terminal device selecting a reference signal whose measurement result meets the conditions from the reference signal of the first cell; the beam information of the first cell including indication information of the reference signal whose measurement result meets the conditions, and / or the Layer 1-Reference Signal Received Power L1-RSRP of the reference signal whose measurement result meets the conditions.

[0012] The process of the terminal device measuring the reference signal of the first cell includes: the first cell is pre-configured with a CSI measurement configuration, and the terminal device measures the reference signal included in the pre-configured CSI measurement configuration of the first cell; or, the first cell is pre-configured with a first reference signal list, and the terminal device measures the reference signal included in the pre-configured first reference signal list of the first cell.

[0013] In a second aspect, a beam information receiving method is provided, comprising: a network device sending a first activation signaling to a terminal device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; the network device receiving layer 2 signaling from the terminal device through a second cell, the layer 2 signaling including beam information of the first cell, the second cell being the primary cell or a primary-secondary cell of the first cell.

[0014] Using the above method, during the activation process of the first cell, the network device can receive the beam information of the first cell through the second cell, thereby activating the first cell.

[0015] In one possible implementation, the aforementioned Layer 2 signaling includes MAC CE signaling; and / or, the aforementioned first cell is an unknown cell.

[0016] In one possible implementation, after the network device receives Layer 2 signaling from the terminal device via the second cell, the implementation may further include: the network device receiving a valid CSI from the terminal device, wherein the valid CSI indicates that the activation of the first cell is complete.

[0017] Optionally, the beam information of the first cell received by the network device through the second cell may include indication information of the reference signal that the measurement result meets the conditions, and / or the L1-RSRP of the reference signal that the measurement result meets the conditions.

[0018] Thirdly, a beam information reporting method is provided, comprising: a terminal device receiving a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; the terminal device measuring a reference signal of the first cell to determine first beam information; and the terminal device initiating random access to the network device in the first cell using a first random access resource associated with the first beam information and a first random access preamble.

[0019] Using the above method, the terminal device implicitly reports the beam information of the first cell to the network device through the random access resources and random access preamble associated with the first cell, thus saving signaling overhead.

[0020] In one possible implementation, the first beam can be associated with at least one random access resource and at least one random access preamble. The terminal device can select a first random access resource from the at least one random access resource associated with the first beam information; and select a first random access preamble from the at least one random access preamble. It is understood that the above process is optional. If the first beam is associated with only one random access preamble and one random access resource, the terminal device does not need to perform the above selection process; the random access resource associated with the terminal device is the aforementioned first random access resource, and the random access preamble associated with the terminal device is the aforementioned first random access preamble.

[0021] In one possible implementation, the method further includes: the terminal device responding to the first activation signaling to determine whether the first cell is an unknown cell; if the first cell is an unknown cell, then the terminal device performs a step of measuring the reference signal of the first cell to determine the first beam information.

[0022] Optionally, after the terminal device initiates random access to the network device in the first cell using the first random access resource and the first random access preamble associated with the first beam information, the method further includes: the terminal device sending a valid CSI to the network device, wherein the valid CSI indicates that the activation of the first cell is complete.

[0023] The above method, the entire scheme includes at least the following steps: the network device sends an activation signaling message for the first cell to the terminal device; the terminal device responds to the activation signaling message for the first cell and determines the first beam information of the first cell; the terminal device determines the first random access resource and the first random access preamble corresponding to the first beam information; the terminal device initiates random access based on the first random access resource and the first random access preamble, thereby enabling the terminal device to implicitly report the beam information of the first cell through the random access process, without the need to report the beam information of the first cell separately, thus saving the signaling overhead of reporting the beam information of the first cell.

[0024] In one possible implementation, the terminal device measures the reference signal of the first cell to determine the first beam information, including: the terminal device measures the reference signal of the first cell to obtain the reference signal measurement result; the terminal device selects a reference signal whose measurement result meets the conditions from the reference signal of the first cell, and the first beam information includes indication information of the reference signal whose measurement result meets the conditions, and / or the L1-RSRP of the reference signal whose measurement result meets the conditions.

[0025] Optionally, before the terminal device initiates random access based on the beam information of the first cell, the method further includes: the terminal device determining whether the timing advance (TAG) of the first cell is invalid; if the TAG of the first cell is invalid, then the terminal device initiates random access to the network device in the first cell using the first random access resource associated with the first beam information and the first random access preamble. If the TAG of the first cell is invalid, other methods can be used to report the beam information of the first cell. For example, the beam information of the first cell can be reported using the method described in the first aspect above.

[0026] In this embodiment, the TA of the first cell is considered valid under the following conditions: the time alignment timer associated with the TAG of the first cell is running; otherwise, the TA of the first cell is considered invalid. Optionally, TA invalidation can also be referred to as TA expiration. During wireless communication, if the TA on the terminal device side is invalid, it usually means that the terminal device and the network device cannot maintain strict time synchronization. At this time, the terminal device needs to re-initiate random access. During the random access process of the terminal device, the network device allocates a valid TA to the terminal device. Existing protocols stipulate that random access of secondary cells can only be triggered by PDCCH orders. The random access process of a secondary cell may be as follows: the terminal device reports beam information to the network; the network device selects a beam based on the beam information reported by the terminal device and sends a PDCCH order to the terminal device in that beam; the terminal device initiates random access based on the triggering of the PDCCH order and obtains a valid TA. In the above scheme, when the terminal device determines that the TA of the first cell has failed, it directly initiates random access based on the first random access resource and the first random access preamble associated with the beam information of the first cell. This implicitly reports the beam information of the first cell to the network device, and can also obtain a valid TA assigned to it by the network device during the random access process. Compared with the current cooperation method that first reports the beam information of the secondary cell and then the network device sends a PDCCH command to trigger the random access process of the terminal device, this simplifies the process of the terminal device obtaining a valid TA and saves signaling overhead.

[0027] Fourthly, a beam information receiving method is provided, comprising: a network device sending a first activation signaling to a terminal device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; the network device using a first random access resource to receive a first random access preamble from the terminal device in the first cell; and first beam information associated with the first random access resource and the first random access preamble being the beam information of the first cell. Optionally, the first cell may be an unknown cell, and / or, the TAG TA of the first cell may be invalid.

[0028] The information of the first beam may include indication information of a reference signal whose measurement results meet the conditions, and / or the L1-RSRP of the reference signal whose measurement results meet the conditions.

[0029] In one possible implementation, the first beam information is associated with at least one random access resource and at least one random access preamble, wherein the at least one random access resource includes the first random access resource and the at least one random access preamble includes the first random access preamble.

[0030] Optionally, after the network device receives a first random access preamble from the terminal device in the first cell using the first random access resource, the method further includes: the network device receiving a valid CSI from the terminal device, wherein the valid CSI indicates that the activation of the first cell is complete.

[0031] Fifthly, a beam information reporting method is provided, comprising: a terminal device receiving a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; a second cell pre-configured with beam information reporting for the first cell; the terminal device periodically transmitting the beam information of the first cell to the network device in the second cell, the second cell being the primary cell or a primary-secondary cell of the first cell; the first terminal device, when a preset condition is met, stopping in the second cell and periodically reporting all or part of the beam information of the first cell. Optionally, the first cell may be an unknown cell or a known cell.

[0032] Using the above method, when preset conditions are met, the terminal device directly stops periodically reporting the beam information of the first cell in the second cell. Compared to the current solution, where the second cell is configured to report the beam information of the first cell, even when the first cell is successfully activated, the second cell continues to report the beam information of the first cell unless the first cell's reporting configuration is deleted via RRC signaling reconfiguration. In this embodiment, reporting the beam information of the first cell in the second cell can be stopped without RRC signaling reconfiguration, saving signaling overhead.

[0033] In one possible implementation, the aforementioned preset conditions include at least one of the following: the terminal device receives a Transmission Configuration Indication (TCI) and / or an Uplink Spatial Relationship Indication from the network device; the terminal device transmits a first valid CSI of the first cell in the second cell; the terminal device transmits a valid CSI to the network device, the valid CSI indicating that the activation of the first cell is complete; the terminal device receives a Physical Downlink Control Channel (PDCCH) command or valid TA information from the network device, the PDCCH command being used to trigger random access for the terminal device, the PDCCH command including beam information of the first cell, and the valid TA information being allocated to the terminal device by the network device during the random access process. In this embodiment, when one or more of the aforementioned preset conditions are met, the terminal device may stop reporting the beam information of the first cell in the second cell.

[0034] In one possible implementation, the above method may further include: the terminal device sending a valid CSI to the network device, the valid CSI indicating that the activation of the first cell has been completed.

[0035] Sixthly, a beam information receiving method is provided, comprising: a network device sending a first activation signaling to a terminal device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; a second cell pre-configured with beam information reporting of the first cell; the network device receiving beam information from the terminal device in the second cell, the second cell being the primary cell or a primary-secondary cell of the first cell. Optionally, the first cell may be an unknown cell or a known cell.

[0036] Using the above method, the network device can receive the beam information of the first cell through the second cell, realizing the reception of the beam information of the first cell during the activation process of the first cell, so that the subsequent network device can successfully activate the first cell for the terminal device.

[0037] In one possible implementation, the method further includes: the network device receiving a valid CSI from the terminal device, the valid CSI indicating that the activation of the first cell has been completed.

[0038] In one possible implementation, when sending the first activation signaling, the network device may also need to determine whether the first cell is an unknown cell. If the first cell is an unknown cell, the network device can configure TCI and / or uplink spatial relationships for the first cell based on the beam information of the first cell.

[0039] A seventh aspect is to provide an apparatus comprising a unit that implements any one of the first, third, or fifth aspects described above.

[0040] Eighthly, an apparatus is provided, comprising a unit that implements any one of the second, fourth, or sixth aspects described above.

[0041] A ninth aspect provides an apparatus comprising a processor and an interface circuit, the interface circuit being configured to receive signals from other communication devices outside the communication apparatus and transmit them to the processor, or to send signals from the processor to other communication devices outside the communication apparatus, the processor being configured to implement the methods in any of the implementations of the first, third, or fifth aspects of the preceding aspects via logic circuits or execution code instructions.

[0042] A tenth aspect provides an apparatus including a processor and an interface circuit, the interface circuit being configured to receive signals from other communication devices outside the communication apparatus and transmit them to the processor or to send signals from the processor to other communication devices outside the communication apparatus, the processor being configured to implement the methods in any of the implementations of the second, fourth, or sixth aspects of the foregoing via logic circuits or execution code instructions.

[0043] Eleventhly, a system is provided, comprising the means of the seventh or ninth aspect and the means of the eighth or tenth aspect.

[0044] Eleventhly, a computer-readable storage medium is provided, which stores a computer program or instructions that, when executed, implement the method in any of the implementations of the first to sixth aspects.

[0045] In a twelfth aspect, a computer program product containing instructions is provided, which, when executed, implement the method of any of the first to sixth aspects described above.

[0046] In a thirteenth aspect, a circuit system is provided, comprising a processor and potentially a memory, for implementing the methods described in either the first or sixth aspect. The circuit system may be constructed from a chip or may include chips and other discrete devices. Attached Figure Description

[0047] Figure 1 A schematic diagram of the network architecture provided in the embodiments of this application;

[0048] Figure 2 A schematic diagram of the primary cell group (MCG) and secondary cell group (SCG) in a dual-connectivity DC provided in this application embodiment;

[0049] Figure 3 A flowchart of the beam reporting and receiving method provided in Embodiment 1 of this application;

[0050] Figure 4 A flowchart of the beam reporting and receiving method provided in Embodiment 2 of this application;

[0051] Figure 5 A flowchart of the beam reporting and receiving method provided in Embodiment 3 of this application;

[0052] Figure 6 A schematic diagram of the device provided in the embodiments of this application;

[0053] Figure 7 Another schematic diagram of the device provided in the embodiments of this application. Detailed Implementation

[0054] Figure 1An example diagram of a network architecture 100 applicable to embodiments of this application is shown. This network architecture 100 may include at least one network device 110. The network device 110 may be a device that communicates with terminal devices, such as a base station or base station controller. Each network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area (cell). The network device 110 may be an access network device, also known as a radio access network (RAN) device, which is a device that provides wireless communication functions for terminal devices. Access network equipment includes, but is not limited to: next-generation node B (gNB), evolved node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved node B, or home node B (HNB)), base band unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), and / or mobile switching center, etc. Alternatively, access network equipment can also be radio controllers, centralized units (CU), and / or distributed units (DU) in cloud radio access network (CRAN) scenarios. Alternatively, network equipment can be relay stations, access points, vehicle-mounted equipment, terminal equipment, wearable devices, and network equipment in future 5G networks or future evolved public land mobile networks (PLMNs), etc.

[0055] In this application embodiment, the device for implementing the function of the network device can be a network device itself; it can also be a device capable of supporting the network device in implementing the function, such as a circuit system, which can be installed in the network device. In the technical solutions provided in this application embodiment, the example of a network device being used to implement the function of the network device is used to describe the technical solutions provided in this application embodiment.

[0056] The network architecture 100 also includes one or more terminal devices 120 located within the coverage area of ​​network device 110. The terminal device 120 can be mobile or fixed. The terminal device 120, often simply referred to as a terminal, is a device with wireless transceiver capabilities. Terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water (such as on ships); and they can be deployed in the air (e.g., on airplanes, balloons, and satellites). The terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminal devices in industrial control, wireless terminal devices in self-driving, wireless terminal devices in remote medical care, wireless terminal devices in smart grids, wireless terminal devices in transportation safety, wireless terminal devices in smart cities, and / or wireless terminal devices in smart homes. The terminal device can also be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device or computing device with wireless communication capabilities, in-vehicle device, wearable device, terminal device in the future 5th generation (5G) network, or terminal device in the future evolved public land mobile network (PLMN), etc. The terminal device can sometimes also be called user equipment (UE). The terminal device 120 can communicate with multiple access network devices of different technologies. For example, the terminal device can communicate with access network devices supporting long term evolution (LTE), or with access network devices supporting 5G, and can also have dual connections with access network devices supporting both LTE and 5G. The embodiments in this application are not limited.

[0057] In this application embodiment, the device for implementing the functions of the terminal device can be the terminal device itself; it can also be a device capable of supporting the terminal device in implementing the functions, such as a circuit system, which can be installed in the terminal device. In this application embodiment, the circuit system can be composed of chips, or it can include chips and other discrete devices. In the technical solutions provided in this application embodiment, the terminal device is used as an example to describe the technical solutions provided in this application embodiment.

[0058] In this configuration, network device 110 and terminal device 120 can transmit data via air interface resources. These air interface resources may include at least one of time-domain resources, frequency-domain resources, code-domain resources, and spatial resources. Specifically, when network device 110 and terminal device 120 transmit data, network device 110 can send control information to terminal device 120 via a control channel, such as a physical downlink control channel (PDCCH), thereby allocating data channel transmission parameters to terminal device 120, such as allocating resources for a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH). For example, the control information may indicate the time-domain symbols and / or frequency-domain resource blocks (RBs) mapped to the data channel, and network device 110 and terminal device 120 will transmit data via the data channel on these allocated time-frequency resources. The aforementioned data transmission may include downlink data transmission and / or uplink data transmission. Downlink data transmission (such as data carried by the PDSCH) may refer to network device 110 sending data to terminal device 120, and uplink data transmission (such as data carried by the PUSCH) may refer to terminal device 120 sending data to network device 110. The data can be data in a broad sense, such as user data, system messages, broadcast information, or other information.

[0059] Figure 1 The example illustrates one network device and two terminal devices. Optionally, the network architecture 100 may include multiple network devices, and the coverage area of ​​one network device may include other numbers of terminal devices; the embodiments in this application are not limited in scope.

[0060] It is understood that the network architecture and business scenarios described above are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems. For example, the technical solutions provided by the embodiments of this application can be applied to fourth-generation (4G) network architectures, such as long-term evolution (LTE) systems; fifth-generation (5G) network architectures, such as new radio (NR) systems; or various future network architectures, such as the Internet of Things, vehicle-to-everything (V2X), and sixth-generation (6G) network architectures, without limitation.

[0061] exist Figure 1 In the network architecture shown, the concept of a Physical Uplink Control Channel (PUCCH) secondary cell is proposed. This PUCCH secondary cell refers to a cell capable of transmitting PUCCH, which differs from a regular secondary cell. Regular secondary cells do not have the capability to transmit PUCCH; they can only transmit PUCCH through their corresponding primary cell, primary auxiliary cell, or PUCCH secondary cell. For PUCCH secondary cells, the following activation process is proposed:

[0062] The network device sends a Media Access Control (MAC) activation signaling message to the terminal device. Upon receiving the MAC activation signaling message, the terminal device measures the pre-configured reference signal (RS) of the PUCCH secondary cell to be activated, obtains beam information, and reports the beam information to the network device. Based on the beam information reported by the terminal device, the network device configures a Transmission Configuration Indicator (TCI) and uplink spatial relationships for the terminal device. Following the TCI instruction, the terminal device sends a valid Channel State Information (CSI) report to the network device on the PUCCH of the secondary cell to be activated, signifying the completion of the secondary cell activation. Optionally, the above activation process is merely illustrative and not intended to limit the embodiments of this application. For example, the above activation process may also include cell search, automatic gain control (AGC), and timing processes. How the terminal device reports the beam information of the secondary PUCCH to the network device during the activation process is the technical problem to be solved in the embodiments of this application.

[0063] To address the above, this application provides several solutions. The first solution involves the terminal device sending Layer 2 signaling on the primary or secondary cell corresponding to the PUCCH secondary cell. This Layer 2 signaling includes the beam information of the PUCCH secondary cell. See Embodiment 1 below for details. The second solution involves the terminal device implicitly reporting the PUCCH secondary cell's beam information to the network device via the random access resources and random access preamble associated with the beam information of the PUCCH secondary cell. See Embodiment 2 below for details. The third solution involves configuring PUCCH secondary cell beam information reporting in the primary or secondary cell. The terminal device can periodically report the PUCCH secondary cell's beam information in the primary or secondary cell, and stop periodically reporting the beam information in the primary or secondary cell when predetermined conditions are met. See Embodiment 3 below for details.

[0064] For ease of understanding, the following explanations are provided for the communication terms or concepts used in this application:

[0065] 1. Primary cell (PCell)

[0066] The primary cell can be the cell where the terminal device establishes the initial connection, the cell where the terminal device rebuilds the radio resource control (RRC) connection, or the primary cell designated during handover. The primary cell is mainly used for RRC communication with the terminal device. The component carrier corresponding to the primary cell is called the primary component carrier (PCC).

[0067] 2. Primary secondary cell (PSCell)

[0068] The concept of master and secondary nodes originated in dual connectivity (DC). To facilitate understanding, let's first introduce dual connectivity: Due to the limited bandwidth and coverage of a single base station, dual connectivity technology was introduced in LTE and NR to provide a performance solution under non-ideal transmission conditions between base stations. In one dual connectivity scheme, user data streams are segmented and merged at the Packet Data Convergence Protocol (PDCP) layer, and then simultaneously transmitted to the terminal device through multiple different base stations, thereby achieving high bandwidth and high speed. In other dual connectivity schemes, user data streams can be segmented or merged at other locations, such as the core network side, and then simultaneously transmitted to the terminal device through multiple different base stations. One of these base stations is the master node (MN), and the remaining base stations are secondary nodes (SNs). MN and SN can use the same or different radio standards, without limitation. For example, MN can use the LTE standard, and SN can use the NR standard.

[0069] like Figure 2 As shown, dual connectivity involves the concepts of a master cell group (MCG) and a secondary cell group (SCG). In one possible interpretation, the cell group to which the terminal device first initiates random access can be considered the MCG. Without a data center (DC), there is no concept of MCG and SCG. Alternatively, it can be considered that without a DC, the cell group to which the terminal device accesses is the master cell group.

[0070] See also Figure 2In a Multi-Cell Group (MCG), there may be multiple cells. The cell used by a terminal device to initiate random access is called the primary cell. The other cells in the MCG are called secondary cells. The primary and secondary cells in an MCG can be combined using carrier aggregation technology. Similarly, in a Sub-Cell Group (SCG), the cell used by a terminal device to initiate random access is called the primary / secondary cell. The other cells in the SCG are called secondary cells, and the primary / secondary cells and the other secondary cells are combined using carrier aggregation technology.

[0071] 3. Carrier aggregation (CA)

[0072] Carrier aggregation is a technique that combines multiple carrier components (CCs) together to support greater transmission bandwidth. To efficiently utilize fragmented spectrum, carrier aggregation supports aggregation between different carrier components. For example, it can aggregate carrier components within the same or different bandwidths, or adjacent or non-adjacent carrier components within the same bandwidth, or carrier components within different bandwidths. For example, the above... Figure 2 In this context, the carrier component corresponding to the primary cell can be the primary component carrier (PCC), and the carrier component corresponding to the secondary cell can be the secondary component carrier (SCC).

[0073] 4. Secondary cell (Scell)

[0074] A secondary cell can be a cell that does not have RRC communication with the terminal device and is mainly used to provide additional radio resources. The secondary cell can be added during RRC reconfiguration. In one example, the primary cell can be determined during connection establishment, and the secondary cell can be added, modified, or released via RRC connection reconfiguration messages after initial access is completed.

[0075] 5. Beam

[0076] In protocols, beams can be represented as spatial domain filters, spatial filters, or spatial parameters. The beam used to transmit signals can be called a transmission beam (Tx beam), a spatial domain transmission filter, or a spatial transmission parameter. The beam used to receive signals can be called a reception beam (Rx beam), a spatial domain receive filter, or a spatial RX parameter. The transmission beam refers to the distribution of signal strength in different directions in space after the signal is transmitted through the antenna, while the reception beam refers to the distribution of signal strength in different directions in space of the wireless signal received from the antenna.

[0077] In addition, in the description of this application, unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship. For example, A / B can represent A or B. "And / or" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple. Additionally, to facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or the order of execution, and that the words "first" and "second" do not necessarily imply that they are different.

[0078] Example 1

[0079] This embodiment provides a beam information reporting and receiving method, which can be used for a PUCCH secondary cell to report beam information during the activation process. The method includes: a terminal device receiving a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; the terminal device measuring the reference signal of the first cell to determine the beam information of the first cell; and the terminal device sending Layer 2 signaling to the network device through a second cell, the Layer 2 signaling including the beam information of the first cell, the second cell being the primary cell or primary-secondary cell corresponding to the first cell.

[0080] like Figure 3 As shown, a process for beam information reporting and receiving is provided, which includes at least the following:

[0081] Step S301: The network device sends a first activation signaling message to the terminal device. The first activation signaling message is used to activate the first cell, which is a secondary cell with a PUCCH. Optionally, the first activation signaling message can be a MAC activation signaling message, etc.

[0082] Step S302: The terminal device responds to the first activation signaling and determines whether the first cell is an unknown cell. If the first cell is an unknown cell, proceed to step 303. If the first cell is a known cell, it means that the terminal device has already reported the beam information of the first cell to the network device, and the terminal device does not need to report the beam information of the first cell to the network device again using the processes of steps 303 and 304 below. Since this application focuses on how to report beam information to the network device during the activation process for unknown cells, the activation process for known cells is not limited and will not be described in detail. For ease of explanation, in Figure 3 This is indicated by "End Process". Step 302 above is optional.

[0083] In one example, if the first cell is a cell in frequency range 1 (FR1), then the terminal device considers the first cell to be a known cell if the first cell meets the following conditions; otherwise, the terminal device considers the first cell to be an unknown cell.

[0084] 1. Within a certain period before receiving the activation command, the terminal device reported valid measurement results for the first cell.

[0085] 2. During the activation process of the terminal device, and for a period of time prior to the activation process, the reference signal of the first cell measured by the terminal device always remains detectable. The detectable conditions may include at least one of the following: the signal-to-interference plus noise ratio (SINR) of the reference signal of the first cell is greater than or equal to a first preset value; the interference power spectral density of the reference signal of the first cell is greater than or equal to a second preset value; or the received power of the reference signal of the first cell is greater than or equal to a third preset value, etc.

[0086] In another example, if the first cell is a cell in frequency range 2 (FR2), the terminal device considers the first cell to be a known cell if the first cell meets the following conditions; otherwise, it considers the first cell to be an unknown cell.

[0087] 1. Before receiving the latest TCI activation command and semi-static channel state information reference signal (CSI-RS) activation command, the terminal equipment has reported a valid layer 3 reference signal receiving power (L3-RSRP) measurement.

[0088] 2. After the terminal device reports to L3-RSRP, it receives the activation signal of the first cell, and the activation signaling is no later than the TCI received by the terminal device.

[0089] 3. The reference signal reported by the terminal device remains detectable from the L3-RSRP reporting to the reporting of a valid channel quality indication (CQI). For the detectability conditions, please refer to the above and will not be repeated here. Furthermore, the TCI is configured based on one or more reference signals recently reported by the terminal device.

[0090] Step S303: The terminal device measures the reference signal of the first cell to obtain the beam information of the first cell.

[0091] In one example, the terminal device can measure the reference signal of the first cell to obtain the measurement result of the reference signal; the terminal device selects the reference signal whose measurement result meets the conditions from the reference signals of the first cell; the beam information of the first cell includes indication information of the reference signal whose measurement result meets the conditions, and / or the layer 1 reference signal receiving power (L1-RSRP) of the reference signal whose measurement result meets the conditions.

[0092] For example, the process of a terminal device measuring a reference signal in a first cell can be as follows: the first cell is pre-configured with a CSI measurement configuration, and the terminal device can measure the reference signals included in the pre-configured CSI measurement configuration of the first cell; or, the first cell is pre-configured with a first reference signal list, and the terminal device can measure the reference signals included in the pre-configured first reference signal list of the first cell.

[0093] Step S304: The terminal device sends Layer 2 signaling to the network device through the second cell. This Layer 2 signaling includes beam information of the first cell, where the second cell is the primary or secondary cell corresponding to the first cell. Optionally, the Layer 2 signaling can be a media access control element (MACCE), etc. For example, in the communication protocol between the terminal device and the network device, the first layer can be the physical (PHY) layer, the second layer can be the MAC layer, the third layer can be the radio link control (RLC) layer, the fourth layer can be the PDCP layer, and the fifth layer can be the RRC layer. The aforementioned Layer 2 signaling can refer to signaling sent at the aforementioned MAC layer. Of course, the above protocol stack is only illustrative and is not intended to limit the embodiments of this application.

[0094] In this embodiment of the application, the first cell and the second cell may be located in the same cell group, which may be a primary cell group or a secondary cell group. Through the above... Figure 2As described above, the DC (Distributed Cell Center) introduces the concepts of primary cell groups and secondary cell groups. A primary cell group includes cells used for random access, called primary cells. In addition to primary cells, a primary cell group also includes secondary cells. For example, if primary cell group 1 includes a primary cell and a secondary PUCCH cell to be activated, the secondary PUCCH cell to be activated could be the first cell mentioned above, and the primary cell included in primary cell group 1 could be the second cell mentioned above. Similarly, a secondary cell group includes cells used for random access, called primary auxiliary cells. In addition to primary auxiliary cells, a secondary cell group may also include secondary cells. For example, if secondary cell group 1 includes primary auxiliary cells and a secondary PUCCH cell to be activated, the secondary PUCCH cell to be activated could be the first cell mentioned above, and the primary auxiliary cell could be the second cell mentioned above.

[0095] Step S305: The terminal device sends a valid CSI to the network device, wherein the valid CSI indicates that the activation of the first cell is complete. Step S305 is optional.

[0096] It should be noted that, in this embodiment, the beam information of the first cell can be interpreted as follows: A pre-set correspondence between beams and reference signals can be established, meaning different reference signals can be transmitted and received using different beams. For example, the correspondence between reference signal 1 and beam 1, reference signal 2 and beam 2, and reference signal 3 and beam 3 can be bound. Then, the terminal device measures reference signal 1, reference signal 2, and reference signal 3 respectively, for example, by measuring the reference signal receiving power (RSRP) of the three reference signals. From the RSRP of these three reference signals, the terminal device selects the reference signal with the highest RSRP, or the reference signal with an RSRP greater than a threshold, as the qualified reference signal. The qualified reference signal can be considered as a beam that meets the conditions in the transmission environment of the first cell, i.e., is usable for data transmission in the first cell. Afterwards, the terminal device can report the indication information of the qualified reference signal in the first cell through the second cell. Alternatively, the terminal device can directly report the RSRP of the measured reference signal to the network device. The network device selects a reference signal that meets the conditions based on the RSRP of the reference signal reported by the terminal device. The network device can determine the beam corresponding to the reference signal that meets the conditions based on the pre-set correspondence between the reference signal and the beam; this beam can be referred to as the beam that meets the conditions. The network device considers the beam that meets the conditions to be the beam with better transmission quality in the transmission environment of the first cell. Due to beam reciprocity, a beam with better downlink transmission quality usually also means better uplink transmission quality. Therefore, the network device can configure TCI and / or uplink spatial relationship for the terminal device based on the beam that meets the conditions. TCI can be considered as the beam configured by the network device for the terminal device to receive downlink signals, and uplink spatial relationship can be considered as the beam configured by the network device for the terminal device to transmit uplink signals. Then, the terminal device can determine the first beam based on the uplink spatial relationship configured by the network device, and use this first beam to transmit a valid CSI in the first cell. This valid CSI represents the completion of activation of the first cell.

[0097] It should be noted that some descriptions in this application use the example of a terminal device reporting indication information of a reference signal that meets the conditions. However, in addition to reporting indication information of a reference signal that meets the conditions, the terminal device may also report the RSRP of the reference signal that meets the conditions. Similarly, some descriptions in this application use the example of a terminal device reporting the RSRP of a reference signal. However, in addition to reporting the RSRP of a reference signal, the terminal device may also report indication information of the terminal device. This application does not limit this aspect.

[0098] In this application, the description uses the reported "beam information of the first cell" as an example. The "beam information of the first cell" can actually be "reference signal information of the first cell" or "CSI of the first cell," etc. The reference signal can include CSI-RS or synchronization signal block (SSB), etc. Therefore, the "beam information of the first cell" can be called "SSB information of the first cell" or "CSI-RS information of the first cell," etc. The reference signal information of the first cell reported by the terminal device can specifically be the identifier of the reference signal in the first cell that meets the conditions or is measured by the terminal device, and / or, the L1-RSRP of the reference signal in the first cell that meets the conditions or is measured by the terminal device. Regarding L1-RSRP, the structure includes a reference signal identifier and the RSRP of the reference signal. For example, if the RSRP measured by the terminal device for reference signal 1 is 50 dB / mW, then the L1-RSRP corresponding to reference signal 1 may include: the identifier "1" for reference signal 1, and the RSRP "50" for reference signal 1, etc. It should be noted that, for ease of understanding, the above description uses the example of the terminal device directly reporting the RSRP value of the reference signal, and is not intended to limit the embodiments of this application. For example, in one implementation, to reduce the overhead of reporting RSRP, the RSRP value may be quantized into other values ​​for reporting. For example, the RSRP value may be pre-divided into several levels, and the terminal device may directly report the value of each RSRP level. Alternatively, only the maximum RSRP value may be reported, and other RSRP values ​​may only be reported as differences from the maximum RSRP, etc.

[0099] Regarding the CSI of the first cell, the following explanation is provided: CSI typically includes CQI and the Reference Signal Ratio (RSRP). If the terminal device measures CSI based on the SSB, the RSRP included in the CSI is specifically SSB-RSRP; if the terminal device measures CSI based on CSI-RS, the RSRP included in the CSI is specifically CSI-RS-RSRP, and so on. CQI in CSI generally refers to downlink channel quality, measured by the terminal device. The network device can select an appropriate scheduling algorithm and downlink block size based on the CQI reported by the terminal device to ensure optimal downlink performance for the terminal device in different wireless environments. Optionally, in step 305 above, the terminal device reporting a valid CSI to indicate the completion of activation of the first cell can be replaced with: the terminal device reporting a valid CQI to indicate the completion of activation of the first cell.

[0100] Regarding the above embodiment one, a specific example is provided, which includes at least:

[0101] 1. For terminal devices that support CA and PUCCH secondary cells, after adding a PUCCH secondary cell, the network device sends a MAC activation command to activate the PUCCH secondary cell.

[0102] In one example, at least one PUCCH secondary cell can be pre-added to the terminal device, along with a CSI measurement configuration for that PUCCH secondary cell. This CSI measurement configuration may include at least one CSI reporting configuration. Each CSI reporting configuration includes a CSI resource configuration for channel measurement. This CSI reporting configuration may indicate the reporting method corresponding to the reference signal for its included CSI resource configuration, such as whether to report periodically, the reporting type, and which cells' CSIs to report. In this embodiment, after adding a PUCCH secondary cell to the terminal device, the PUCCH secondary cell is not yet usable; that is, the terminal device cannot yet use the secondary cell to perform uplink / downlink data transmission with the network device. Only after the added PUCCH secondary cell is activated can it be used, meaning the terminal device can use the activated PUCCH secondary cell to perform uplink / downlink data transmission with the network device.

[0103] 2. If the PUCCH secondary cell to be activated is an unknown cell, the terminal device can measure the reference signals configured in the PUCCH secondary cell to obtain N reference signals. The terminal device then reports these N RSs to the primary cell or primary-secondary cell via MAC CE, and / or reports the L1-RSRP results of the N RSs via MAC CE. Regarding the N reference signals: the N reference signals can be all the reference signals measured by the terminal device; that is, the terminal device reports the same number of reference signals as it measures, and the subsequent selection of reference signals can be performed by the network device. Alternatively, the terminal device can select N reference signals from all the measured reference signals. These N reference signals can be randomly selected by the terminal device, or based on certain rules, such as selecting the N reference signals with the best RSRP, or selecting reference signals with RSRP greater than a threshold, etc., without limitation.

[0104] The process of a terminal device measuring reference signals configured in the PUCCH secondary cell may include: the UE can perform reference signal measurements based on at least one CSI reporting configuration included in the pre-configured CSI measurement configuration of the PUCCH secondary cell. For example, in one possible implementation, the CSI measurement configuration includes X CSI reporting configurations, and the terminal device can select Y CSI reporting configurations from these X configurations, where X and Y are both positive integers, and the value of Y is less than or equal to X. Each CSI reporting configuration includes CSI resource configurations for channel measurement, and the terminal device can measure all reference signals corresponding to the Y CSI reporting configurations, selecting N RSs from them. Alternatively, a separate reference signal list can be configured for the terminal device, which includes at least one reference signal, and the terminal device can measure the reference signals included in the reference signal list, selecting N RSs from them.

[0105] Through the above embodiment one, for an unknown PUCCH secondary cell, before the PUCCH secondary cell is activated, the terminal device cannot report beam information through its own PUCCH. Instead, the beam information of the PUCCH secondary cell is reported by the primary cell or primary auxiliary cell, allowing the network device to obtain the beam information of the PUCCH secondary cell. This facilitates subsequent configuration of TCI and uplink spatial relationships for the terminal device by the network device. Compared to the current solution, blind addition of PUCCH secondary cells can be achieved. Even when the network does not know the beam information of the terminal device, the beam information of the PUCCH secondary cell is reported through the MAC CE of the primary cell or auxiliary primary cell.

[0106] Example 2

[0107] This second embodiment provides a beam information reporting and receiving method for beam information reporting of an inactive PUCCH secondary cell. The method includes at least the following steps: a terminal device receives a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; the terminal device measures a reference signal of the first cell to determine first beam information; and the terminal device initiates random access to the network device in the first cell using a first random access resource associated with the first beam information and a first random access preamble.

[0108] like Figure 4 As shown, a process for providing a beam information reporting and receiving method includes at least the following:

[0109] Step S401: The network device sends a first activation signaling message to the terminal device. The first activation signaling message is used to activate the first cell, which is a cell with a PUCCH.

[0110] Step S402: In response to the first activation signaling, the terminal device determines whether the first cell is an unknown cell; if the first cell is an unknown cell, proceed to step S403 below. If the first cell is a known cell, the process ends. Step S402 is optional.

[0111] Step S403: The terminal device measures the reference signal of the first cell to determine the first beam information.

[0112] For the process of steps S401 to S403 above, please refer to the process of steps S301 to S303 in the above embodiment 1, which will not be repeated here.

[0113] Step S404: The terminal device determines whether the timing advance (TA) of the timing advance group (TAG) of the first cell is invalid. If the TAG TA of the first cell is invalid, the terminal device executes step S404 below to report the beam information of the first cell. Otherwise, other methods can be used to report the beam information of the first cell to the network device, such as the method in Embodiment 1. Step S404 is optional.

[0114] For example, a TAG TA for a first cell can be considered valid under the following conditions: the time alignment timer associated with the TAG of the first cell is running; otherwise, the TA of the first cell is considered invalid. Optionally, TA invalidation can also be referred to as TA expiration. During wireless communication, if the TA on the terminal device side is invalid, it usually means that the terminal device and the network device cannot maintain strict time synchronization. In this case, the terminal device needs to re-initiate random access, and the network device allocates a valid TA to the terminal device during the random access process. Existing protocols stipulate that random access in a secondary cell can only be triggered by a PDCCH order. The random access process in a secondary cell may be as follows: the terminal device reports beam information to the network; the network device selects a beam based on the beam information reported by the terminal device and sends a PDCCH order to the terminal device within that beam; the terminal device initiates random access based on the triggering of the PDCCH order and obtains a valid TA. In this embodiment, when the terminal device determines that the TA of the first cell has failed, it directly initiates random access based on the first random access resource and the first random access preamble associated with the beam information of the first cell. This implicitly reports the beam information of the first cell to the network device and allows the terminal device to obtain a valid TA allocated to it by the network device during the random access process. Compared with the current cooperation method that first reports the beam information of the secondary cell and then the network device sends a PDCCH command to trigger the random access process of the terminal device, this simplifies the process of the terminal device obtaining a valid TA and saves signaling overhead.

[0115] Step S405: The terminal device selects a first random access resource and a first random access preamble from at least one random access resource and at least one random access preamble associated with the first beam information. Step S405 is optional and is primarily applied in scenarios where there are multiple random access resources and random access preambles associated with the first beam information, and the terminal device needs to select the first random access resource from multiple random access resources and the first random access preamble from multiple random access preambles. If there is only one random access resource and one random access preamble associated with the first beam, then step S405 is unnecessary; the random access resource associated with the first beam is the first random access resource, and the random access preamble associated with the first beam is the first random access preamble.

[0116] Step S406: The terminal device initiates random access to the network device in the first cell using the first random access resource associated with the first beam information and the first random access preamble.

[0117] In step S406 above, the network device can utilize the first random access resource to receive the first random access preamble from the terminal device in the first cell. The network device can consider the first beam information associated with the first random access resource and the first random access preamble as the beam information of the first cell.

[0118] Optionally, the aforementioned terminal device does not require the triggering of a PDCCH command from the network device, and directly initiates the random access process based on the first random access resource associated with the first beam information and the first random access preamble. The process by which the terminal device determines the first random access resource associated with the first beam information and the first resource access preamble, and initiates random access, includes, but is not limited to, the following two schemes:

[0119] The first method: After determining the first beam information, the terminal device can determine the first random access resource associated with the first beam information and the first random access preamble from a public random access resource pool. Since this public random access resource pool can be used by at least one terminal device, this scheme can also be called a contention-based random access procedure. In one example, the above contention-based random access includes four steps, specifically:

[0120] 1. The terminal device sends a random access preamble in the random access channel.

[0121] 2. After detecting the random access preamble, the network device sends a downlink random access response, which includes at least the following information:

[0122] - The number of the received random access preamble.

[0123] -TA information.

[0124] -Uplink resource location indication information allocated to this terminal device.

[0125] - Temporarily assigned cell-radio network temporary identifier (C-RNTI).

[0126] 3. After receiving the random access response, the terminal device sends an uplink message on the allocated uplink resources according to its instructions.

[0127] 4. The network device receives the uplink message from the terminal device and returns a conflict resolution message to the successfully connected terminal device.

[0128] The second approach involves configuring a dedicated reference signal list and dedicated random access resources for the terminal device. These dedicated reference signals and resources are used by the terminal device to report beam information to the network device. The terminal device can measure the reference signals included in the dedicated reference signal list to determine the first beam information. Based on the correspondence between the dedicated reference signals and the dedicated resource pool, the terminal device determines the first random access resource and the first random access preamble corresponding to the first beam information within the dedicated resource pool. In this embodiment, the process by which the terminal device initiates random access based on the dedicated random access resource pool is not limited.

[0129] Step S407: The terminal device sends a valid CSI to the network device. A valid CSI indicates that the activation of the first cell is complete. Step S407 is optional.

[0130] For Embodiment 2, a specific example is provided, the method including:

[0131] 1. For terminal devices that support CA and PUCCH secondary cells, after adding a PUCCH secondary cell, the network device sends a MAC activation signaling to activate the PUCCH secondary cell.

[0132] 2. If the PUCCH secondary cell to be activated is an unknown cell, the terminal device will autonomously initiate a contention-based random access. The process is as follows: The terminal device measures the reference signal of the PUCCH secondary cell to be activated and selects a first reference signal. Random access is then sent based on the first random access resource associated with the first reference signal and the first random access preamble.

[0133] The terminal device can measure the reference signal based on the pre-configured reference signal measurement configuration or reference signal list of the PUCCH to be activated. The process is similar to that described above and will not be repeated here.

[0134] Optionally, before step 2 above, the terminal device may also determine whether the TAG TA of the PUCCH secondary cell to be activated has expired; if the TAG TA has expired, the scheme of embodiment 2 of this application shall be adopted, otherwise other schemes shall be adopted, such as the scheme of embodiment 1 above.

[0135] As described above, for an unknown PUCCH secondary cell, the terminal device cannot report the beam information of the PUCCH secondary cell in the PUCCH of the secondary cell. Instead, the terminal device selects the random access preamble and random access resources associated with the beam information of the aforementioned PUCCH secondary cell to initiate random access, thereby implicitly reporting the beam information of the PUCCH secondary cell to the network device. Through the scheme of Embodiment 3 above, blind addition of PUCCH secondary cells can be achieved. Even when the network is unaware of the terminal device's beam information, the terminal device can indicate the beam information of the PUCCH secondary cell to the network by initiating random access.

[0136] Example 3

[0137] This embodiment provides a beam information reporting and receiving method, which can be used for a PUCCH secondary cell to report beam information to a network device during the activation process. The method includes at least: a terminal device receiving a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; a second cell pre-configured with beam information reporting of the first cell, the terminal device periodically sending the beam information of the first cell to the network device in the second cell, the second cell being the primary cell or primary-secondary cell of the first cell; and the first terminal device stopping in the second cell when a preset condition is met, periodically reporting all or part of the beam information of the first cell.

[0138] like Figure 5 As shown, a process for providing a beam information reporting and receiving method is provided, which includes at least the following steps:

[0139] Step S501: The network device sends a first activation signaling message to the terminal device. The first activation signaling message is used to activate the first cell, which is a secondary cell with a PUCCH.

[0140] Step S502: The second cell is pre-configured with beam reporting information for the first cell. The terminal device in the second cell periodically sends beam information of the first cell to the network device. The second cell is either the primary cell or a primary / secondary cell of the first cell. Correspondingly, when the network device sends the first activation signaling, it needs to determine whether the first cell is an unknown cell. If the first cell is unknown, the network device can configure TCI and / or uplink spatial relationships for the first cell based on its beam information.

[0141] For example, the second cell is pre-configured with beam reporting of the first cell, which may specifically include: the beam reporting of the first cell configured in the second cell is periodic, that is, the beam information of the first cell is periodically reported through the second cell. For the specific execution process, please refer to steps 503 and 504 below. Alternatively, the beam reporting of the first cell configured in the second cell is non-periodic, then the terminal device can non-periodicly report the beam information of the first cell in the second cell. In one example, the network device can send a non-periodic reporting trigger signaling to the terminal device. When the terminal device receives the trigger signaling, it can report the beam information of the first cell once through the second cell.

[0142] In this embodiment, the time for aperiodic reporting of beam information of the first cell should not be earlier than, i.e., later than or equal to, the following time: time of time slot n + first time T, where time slot n is the time slot in which the terminal device receives the activation signaling to activate the first cell. The network needs to ensure that at least one aperiodic beam reporting time is not earlier than the time specified above. For example, in one example, if the terminal device receives the activation signaling of the first cell in time slot n at 14:33.35 on January 12, 2021, and the first time T is 15 milliseconds, then it needs to ensure that at least one aperiodic reporting of beam information of the first cell is not earlier than 14:33.50 on January 12, 2021. In one example, the first time T can satisfy the following formula:

[0143] T HARQ +K+T FirstSSB_MAX +15*T SMTC_MAX +8*T rs +T L1-RSRP,measure .

[0144] Among them, T HARQ This indicates the time from the downlink transmission carrying the first activation signaling to the corresponding HARQ feedback.

[0145] K represents the time constant; for example, K can take the value of 3ms, etc.

[0146] T FirstSSB_MAX Indicates: From The time until the first complete SSB ends. For intra-band carrier aggregation, this refers to the SSBs of all activated and unactivated SCells within the same band transmitted in the same time slot. For inter-band carrier aggregation, this refers to the SSBs of the unactivated SCell.

[0147] T SMTC_MAXThis indicates the larger of the SSB-based measurement timing configuration (SMTC period) of the secondary cell to be activated and the SMTC period of the SCell to be activated compared to that of the already activated SCell in the same band.

[0148] Trs represents the SMTC period of the cell to be activated. If not configured, it is the SMTC period of the measurement target configured with the same frequency and sub-carrier spacing (SCS) interval; otherwise, it is the specified value.

[0149] T L1-RSRP,measure Indicates the measurement time of L1-RSRP.

[0150] In another example, if the first cell is located in the FR1 band, then the first time T mentioned above satisfies the following formula:

[0151] T HARQ +K+T FirstSSB_MAX +T SMTC_MAX +T rs+ T L1-RSRP,measure

[0152] The meaning of each parameter in this formula can be found above, and will not be repeated here.

[0153] Step S503: When the preset conditions are met, the terminal device stops in the second cell and periodically reports all or part of the beam information of the first cell.

[0154] Step S504: The terminal device sends a valid CSI to the network device, wherein the valid CSI indicates that the activation of the first cell is complete. Step S504 is optional.

[0155] In this third embodiment, the first cell can be an unknown cell or a known cell, without limitation. Since the second cell is pre-configured with beam reporting of the first cell, the terminal device can report the beam information of the first cell to the network device through the second cell. The key point of this embodiment is that when a preset condition is met, this preset condition at least indicates that the network device has obtained the beam information of the first cell, and the terminal device can then stop reporting the beam information of the first cell to the network device through the second cell. In some examples, the above-mentioned preset condition may include at least one of the following:

[0156] 1. The terminal device receives the TCI (Tracking Information Center) of the first cell and / or the uplink spatial relationship indication of the first cell from the network device. Since the network device only assigns the TCI and / or uplink spatial relationship of the first cell to the terminal device upon receiving the beam information of the first cell from the terminal device, when the terminal device receives the TCI and / or uplink spatial relationship of the first cell from the network device, it indicates that the network device has already acquired the beam information of the first cell, and therefore the terminal device can stop reporting the beam information of the first cell to the network device.

[0157] 2. The terminal device transmits the first valid CSI of the first cell in the second cell. The first valid CSI of the first cell includes the beam information of the first cell. This condition can be understood as follows: regardless of the reception of the network device, once the valid beam information of the first cell has been transmitted to the network device, it will not be transmitted again.

[0158] 3. The terminal device sends a valid CSI to the network device, the valid CSI indicating that the activation of the first cell is complete. Since the first cell can report its beam information to the network device through the first cell when the activation of the first cell is complete, the reporting of the first cell's beam information through the second cell can be stopped.

[0159] 4. The terminal device receives a PDCCH command or valid TA information from the network device. The PDCCH command is used to trigger random access for the terminal device. The PDCCH command includes beam information of the first cell, and the valid TA information is allocated by the network device to the terminal device during the random access process. This condition can be understood as follows: the PDCCH command will include the beam allocated by the network device for random access in the first cell, and the network device will only allocate the beam for random access in the first cell to the terminal device after it has reported the beam information of the first cell. Therefore, the aforementioned PDCCH command can serve as an indication that the network device has received the beam information of the first cell. Furthermore, the aforementioned valid TA information is allocated by the network device to the terminal device during the random access process initiated by the terminal device according to the PDCCH command; therefore, the aforementioned valid TA information can also serve as an indication that the network device has received the beam information of the first cell.

[0160] In one example, the second cell is configured to report beam information from the first cell. When the aforementioned preset conditions are met, the terminal device can stop reporting beam information from the first cell using the second cell. When the first cell becomes an inactive cell and is reactivated, the terminal device can resume reporting beam information from the first cell in the second cell, and when the preset conditions are met again, it will stop reporting beam information from the first cell in the second cell.

[0161] In Example 3, during the activation process of the first cell, the PUCCH of the first cell cannot be used. By configuring the beam reporting of the first cell to be activated in the second cell, the network device can obtain the beam information of the first cell. The example also specifies the conditions under which the terminal device stops reporting when the beam reporting of the first cell configured in the second cell is periodic beam reporting, as well as the first time for non-periodic beam information reporting.

[0162] For Embodiment 3, a specific example is provided, which includes at least:

[0163] 1. For terminal devices that support CA and PUCCH secondary cells, after adding a PUCCH secondary cell, the network device sends a MAC activation command to activate the PUCCH secondary cell.

[0164] 2. Pre-configure beam reporting for the PUCCH secondary cell to be activated in the primary cell or primary-secondary cell. If periodic beam reporting is configured, the terminal device will automatically stop periodically reporting the beam information of the PUCCH secondary cell to be activated in the primary cell or primary-secondary cell when the following events occur during the PUCCH secondary cell activation process:

[0165] 1. Receive the TCI of the cell to be activated and / or the uplink spatial relationship sent by the network device;

[0166] 2. Report the first valid beam information of the PUCCH auxiliary cell to be activated through the primary cell or primary auxiliary cell. For example, the first valid beam information can be the L1-RSRP of the reference signal.

[0167] 3. Report a valid CSI in the PUCCH of the PUCCH secondary cell to be activated. A valid CSI indicates that the activation process is complete.

[0168] 4. Receive PDCCH commands or valid TA information from network devices.

[0169] Alternatively, if aperiodic beam reporting is configured, the time when the terminal device reports the beam information of the PUCCH secondary cell using pre-configured resources in the primary cell or primary-secondary cell should not be earlier than, i.e. later than or equal to, the following time: the time slot n when the terminal device receives the activation command of the PUCCH secondary cell + the first time.

[0170] The solution in this embodiment three enables blind addition of PUCCH secondary cells. Even when network devices are unaware of the beam information of the PUCCH secondary cell, terminal devices can report the beam information of the PUCCH secondary cell to be activated through the primary cell or primary-auxiliary cell. Furthermore, in the current solution, when periodic beam information reporting is configured in the primary cell or primary-auxiliary cell, even if the activation of the PUCCH secondary cell is complete and the PUCCH secondary cell is capable of reporting beam information via its own PUCCH, the terminal device still uses the PUCCH resources of the primary cell or primary-auxiliary cell to report the beam information of the PUCCH secondary cell. The solution to stop reporting the beam information of the PUCCH secondary cell in the primary cell or primary-auxiliary cell is usually to delete the beam reporting of the PUCCH secondary cell configured in the primary cell or primary-auxiliary cell through RRC signaling reconfiguration. This means that RRC reconfiguration is required every time a PUCCH secondary cell is activated, resulting in significant signaling overhead and latency. In this third embodiment, during the activation process of the PUCCH secondary cell, when a preset condition is met, the terminal device can assume that the network device has acquired the beam information of the PUCCH secondary cell. At this time, the terminal device automatically stops using the PUCCH resources of the primary cell or primary-secondary cell for reporting, and the terminal device uses its own PUCCH resources for reporting. Compared with the scheme of stopping the reporting of PUCCH secondary cell beam information in the primary cell or primary-secondary cell through RRC signaling reconfiguration, signaling overhead can be reduced and latency can be shortened. However, for non-periodic reporting of PUCCH secondary cells configured in the primary cell or primary-secondary primary cell, it is difficult for the network device to control the timing of the terminal device reporting the beam information of the PUCCH secondary cell. In this third embodiment, the aforementioned first time is specified, thereby realizing the network device's control over the timing of the terminal device reporting the beam information of the PUCCH secondary cell through the primary cell or primary-secondary cell.

[0171] The above combination Figures 1 to 5 The methods provided in the embodiments of this application are described in detail below. Figure 6 and Figure 7 The apparatus provided in the embodiments of this application is described in detail. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments. Therefore, for any content not described in detail, please refer to the description in the method embodiments above.

[0172] Figure 6This is an exemplary block diagram of the apparatus 600 provided in this application embodiment, used to implement the functions of the terminal device or network device in the above method embodiments. The apparatus can be a software unit or a circuit system. The circuit system can be composed of chips, or may include chips or other discrete devices. The apparatus includes a communication unit 601 for communicating with the outside. The apparatus may also include a processing unit 602 for performing processing.

[0173] In one example, the device 600 described above is used to implement the functions of the terminal device in the first embodiment of the method described above. The device 600 may be the terminal device itself, or it may be a chip or circuit configured within the terminal device. The communication unit 601 is used to perform the transmit / receive related operations on the terminal device side in the first embodiment of the method described above, and the processing unit 602 is used to perform the processing related operations on the terminal device side in the first embodiment of the method described above.

[0174] For example, communication unit 601 is used to receive a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a Physical Uplink Control Channel (PUCCH); processing unit 602 is used to measure the reference signal of the first cell to determine the beam information of the first cell; communication unit 601 is also used to send Layer 2 signaling to the network device through a second cell, the Layer 2 signaling including the beam information of the first cell, the second cell being a primary cell or a primary-secondary cell corresponding to the first cell.

[0175] Optionally, the Layer 2 signaling includes Media Access Control (MAC) control element (CE) signaling.

[0176] Optionally, the processing unit 602 is further configured to, in response to the first activation signaling, determine whether the first cell is an unknown cell; if the first cell is an unknown cell, perform the step of measuring the reference signal of the first cell to determine the beam information of the first cell.

[0177] Optionally, the communication unit 601 is further configured to send valid channel state information (CSI) to the network device, wherein the valid CSI indicates that the activation of the first cell has been completed.

[0178] Optionally, measuring the reference signal of the first cell to determine the beam information of the first cell includes: measuring the reference signal of the first cell to obtain the measurement result of the reference signal; selecting the reference signal whose measurement result meets the conditions from the reference signal of the first cell; the beam information of the first cell includes indication information of the reference signal whose measurement result meets the conditions, and / or the Layer 1-Reference Signal Received Power L1-RSRP of the reference signal whose measurement result meets the conditions.

[0179] Optionally, measuring the reference signal of the first cell includes: the first cell is pre-configured with a CSI measurement configuration, and measuring the reference signal included in the pre-configured CSI measurement configuration of the first cell; or, the first cell is pre-configured with a first reference signal list, and measuring the reference signal included in the pre-configured first reference signal list of the first cell.

[0180] In another example, the device 600 described above is used to implement the functions of the network device in the first embodiment of the method above. The device 600 can be a network device, or a chip or circuit configured within the network device. The communication unit 601 is used to perform the transmit / receive related operations on the network device side in the first embodiment of the method above, and the processing unit 602 is used to perform the processing related operations on the network device side in the first embodiment of the method above.

[0181] For example, communication unit 601 is used to send a first activation signaling to the terminal device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; communication unit 601 is also used to receive layer 2 signaling from the terminal device through a second cell, the layer 2 signaling including beam information of the first cell, the second cell being the primary cell or primary-secondary cell of the first cell.

[0182] Optionally, the Layer 2 signaling includes MAC CE signaling. Optionally, the first cell is an unknown cell.

[0183] Optionally, the communication unit 601 is further configured to receive a valid CSI from the terminal device, the valid CSI indicating that the activation of the first cell has been completed.

[0184] Optionally, the beam information of the first cell includes indication information of the reference signal whose measurement result meets the conditions, and / or the L1-RSRP of the reference signal whose measurement result meets the conditions.

[0185] In one example, the device 600 described above is used to implement the functions of the terminal device in the second embodiment of the method described above. The device 600 can be the terminal device itself, or a chip or circuit configured within the terminal device. The communication unit 601 is used to perform the transmit / receive related operations on the terminal device side in the second embodiment of the method described above, and the processing unit 602 is used to perform the processing related operations on the terminal device side in the second embodiment of the method described above.

[0186] For example, communication unit 601 is used to receive a first activation signaling from network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; processing unit 602 is used to measure the reference signal of the first cell to determine the first beam information; processing unit 602 is also used to initiate random access to network device in the first cell using the first random access resource associated with the first beam information and the first random access preamble.

[0187] Optionally, the processing unit 602 is further configured to select a first random access resource and a first random access preamble from at least one random access resource and at least one random access preamble associated with the first beam information.

[0188] Optionally, the processing unit 602 is further configured to, in response to the first activation signaling, determine whether the first cell is an unknown cell; if the first cell is an unknown cell, perform the step of measuring the reference signal of the first cell to determine the first beam information.

[0189] Optionally, the communication unit 601 is further configured to send a valid CSI to the network device, the valid CSI indicating that the activation of the first cell has been completed.

[0190] Optionally, measuring the reference signal of the first cell to determine the first beam information includes: measuring the reference signal of the first cell to obtain the reference signal measurement result; selecting reference signals whose reference signal measurement results meet the conditions from the reference signals of the first cell, wherein the first beam information includes indication information of the reference signals whose measurement results meet the conditions, and / or the L1-RSRP of the reference signals whose measurement results meet the conditions.

[0191] Optionally, the processing unit 602 is further configured to determine whether the timing advance (TAG) of the first cell has failed; if the TAG of the first cell has failed, then the step of initiating random access to the network device in the first cell using the first random access resource associated with the first beam information and the first random access preamble is executed.

[0192] In one example, the device 600 described above is used to implement the functions of the network device in the second embodiment of the method described above. The device 600 can be a network device, or a chip or circuit configured within the network device. The communication unit 601 is used to perform the transmit / receive related operations on the network device side in the second embodiment of the method described above, and the processing unit 602 is used to perform the processing related operations on the network device side in the second embodiment of the method described above.

[0193] For example, communication unit 601 is used to send a first activation signaling to a terminal device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; communication unit 602 is used to receive a first random access preamble from the terminal device in the first cell using a first random access resource; wherein, the first beam information associated with the first random access resource and the first random access preamble is the beam information of the first cell.

[0194] Optionally, the first beam information is associated with at least one random access resource and at least one random access preamble, wherein the at least one random access resource includes the first random access resource and the at least one random access preamble includes the first random access preamble.

[0195] Optionally, the first cell is an unknown cell.

[0196] Optionally, the communication unit 601 is further configured to receive a valid CSI from the terminal device, the valid CSI indicating that the activation of the first cell has been completed.

[0197] Optionally, the information of the first beam includes indication information of a reference signal whose measurement result meets the conditions, and / or the L1-RSRP of the reference signal whose measurement result meets the conditions.

[0198] Optionally, the TAG TA of the first cell becomes invalid.

[0199] In one example, the device 600 described above is used to implement the functions of the terminal device in the third embodiment of the method described above. The device 600 may be a terminal device, or a chip or circuit configured within the terminal device. The communication unit 601 is used to perform the transmit / receive related operations on the terminal device side in the third embodiment of the method described above, and the processing unit 602 is used to perform the processing related operations on the terminal device side in the third embodiment of the method described above.

[0200] For example, communication unit 601 is configured to receive a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; communication unit 601 is also configured to periodically send the beam information of the first cell to the network device in the second cell when the beam information of the first cell is pre-configured in the second cell, the second cell being the primary cell or primary-secondary cell of the first cell; processing unit 602 is configured to stop periodically reporting all or part of the beam information of the first cell in the second cell when a preset condition is met.

[0201] Optionally, the preset conditions include at least one of the following:

[0202] The terminal device receives a Transmission Configuration Indication (TCI) and / or an Uplink Spatial Relationship Indication from the network device;

[0203] The terminal device transmits the first valid CSI of the first cell in the second cell;

[0204] The terminal device sends a valid CSI to the network device, and the valid CSI indicates that the activation of the first cell has been completed;

[0205] The terminal device receives a Physical Downlink Control Channel (PDCCH) command or valid TA information from the network device. The PDCCH command is used to trigger random access for the terminal device. The PDCCH command includes the beam information of the first cell. The valid TA information is allocated to the terminal device by the network device during the random access process.

[0206] Optionally, the first cell can be an unknown cell or a known cell.

[0207] Optionally, the communication unit 601 is further configured to send a valid CSI to the network device, the valid CSI indicating that the activation of the first cell is complete.

[0208] In one example, the device 600 described above is used to implement the functions of the network device in the third embodiment of the method described above. The device 600 can be a network device, or a chip or circuit configured within the network device. The communication unit 601 is used to perform the transmit / receive related operations on the network device side in the third embodiment of the method described above, and the processing unit 602 is used to perform the processing related operations on the network device side in the third embodiment of the method described above.

[0209] For example, communication unit 601 is used to send a first activation signaling to the terminal device. The first activation signaling is used to activate a first cell, which is a secondary cell with a PUCCH. The second cell is pre-configured with beam information reporting of the first cell. Communication unit 601 is used to receive beam information from the first cell of the terminal device in the second cell. The second cell is the primary cell or primary-secondary cell of the first cell.

[0210] Optionally, the first cell can be an unknown cell or a known cell.

[0211] Optionally, the communication unit 601 is further configured to receive a valid CSI from the terminal device, the valid CSI indicating that the activation of the first cell has been completed.

[0212] Optionally, the processing unit 602 is used to determine whether the first cell is an unknown cell; if the first cell is an unknown cell, then configure a Transmission Configuration Indicator (TCI) and / or uplink spatial relationship for the first cell.

[0213] The unit division in this embodiment is illustrative and represents only one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into a single processor, exist as separate physical units, or be integrated into a single unit. The integrated units described above can be implemented in hardware or as software functional units.

[0214] It is understood that the functions of the communication unit in the above embodiments can be implemented by a transceiver, and the functions of the processing unit can be implemented by a processor. The transceiver may include a transmitter and / or a receiver, etc., respectively used to implement the functions of the sending unit and / or the receiving unit. The following, in conjunction with... Figure 7 Let's illustrate with examples.

[0215] Figure 7 The communication device 700 shown includes at least one processor 701. The communication device 700 may also include at least one memory 702 for storing program instructions and / or data. The memory 702 and the processor 701 are coupled. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 701 can operate collaboratively with the memory 702, and the processor 701 can execute program instructions stored in the memory 702. At least one of the at least one memory 702 may be included in the processor 701.

[0216] The device 700 may further include a communication interface 703 for communicating with other devices via a transmission medium, thereby enabling the communication device 700 to communicate with other devices. In this embodiment, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface. In this embodiment, when the communication interface is a transceiver, the transceiver may include an independent receiver, an independent transmitter, or a transceiver integrating transceiver functions, or an interface circuit.

[0217] It should be understood that the connection medium between the processor 701, memory 702, and communication interface 703 described above is not limited in the embodiments of this application. The embodiments of this application... Figure 7 The memory 702, processor 701, and communication interface 703 are connected via a communication bus 704. Figure 7The connections between other components are shown in bold and are for illustrative purposes only, not as limiting information. The bus may include an address bus, data bus, control bus, etc. For ease of illustration, Figure 7 The symbol is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0218] In one example, the aforementioned device 700 can be the terminal device described in the first method embodiment above. The processor 701 of the device 700 is used to read a computer program stored in the memory 702 to perform the following operations: receiving a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a Physical Uplink Control Channel (PUCCH); measuring the reference signal of the first cell to determine the beam information of the first cell; and sending Layer 2 signaling to the network device through a second cell, the Layer 2 signaling including the beam information of the first cell, the second cell being the primary cell or primary-secondary cell corresponding to the first cell. For details, please refer to the description in the first method embodiment above, which will not be repeated here.

[0219] In another example, the aforementioned device 700 can be the network device described in Method Embodiment 1 above. The processor 701 of device 700 is used to read a computer program stored in memory 702 to perform the following operations: sending a first activation signaling to a terminal device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; and receiving Layer 2 signaling from the terminal device through a second cell, the Layer 2 signaling including beam information of the first cell, the second cell being either the primary cell or a primary-secondary cell of the first cell. For details, please refer to the description in Method Embodiment 1 above, which will not be repeated here.

[0220] In another example, the aforementioned device 700 can be the terminal device described in Method Embodiment Two above. The processor 701 of device 700 is used to read a computer program stored in memory 702 to perform the following operations: receiving a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; measuring the reference signal of the first cell to determine first beam information; and initiating random access to the network device in the first cell using a first random access resource associated with the first beam information and a first random access preamble. For specific details, please refer to the description in Method Embodiment Two above, which will not be repeated here.

[0221] In another example, the aforementioned device 700 can be the network device described in Method Embodiment Two above. The processor 701 of device 700 is used to read a computer program stored in memory 702 to perform the following operations: sending a first activation signaling to a terminal device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH; receiving a first random access preamble from the terminal device in the first cell using a first random access resource; the first beam information associated with the first random access resource and the first random access preamble is the beam information of the first cell. For specific details, please refer to the description in Method Embodiment Two above, which will not be repeated here.

[0222] In another example, the aforementioned device 700 can be the terminal device described in Method Embodiment 3 above. The processor 701 of device 700 is used to read a computer program stored in memory 702 to perform the following operations: receiving a first activation signaling from a network device, the first activation signaling being used to activate a first cell, which is a secondary cell with a PUCCH; a second cell pre-configured with beam information reporting of the first cell, in which the beam information of the first cell is periodically sent to the network device, the second cell being either the primary cell or a primary-secondary cell of the first cell; and, when preset conditions are met, stopping in the second cell and periodically reporting all or part of the beam information of the first cell. For specific details, please refer to the description in Method Embodiment 3 above, which will not be repeated here.

[0223] In another example, the aforementioned device 700 can be the network device described in Method Embodiment 3 above. The processor 701 of device 700 is used to read a computer program stored in memory 702 to perform the following operations: sending a first activation signaling to a terminal device, the first activation signaling being used to activate a first cell, which is a secondary cell with a PUCCH; a second cell pre-configured with beam information reporting from the first cell, in which the beam information from the first cell is received from the terminal device, the second cell being either the primary cell or a primary-secondary cell of the first cell. For specific details, please refer to the description in Method Embodiment 3 above, which will not be repeated here.

[0224] This application also provides a computer-readable storage medium including a program, which, when run by a processor, executes the methods described in the above method embodiments.

[0225] A computer program product comprising computer program code, which, when run on a computer, causes the computer to implement the methods described in the above method embodiments.

[0226] A chip includes: a processor coupled to a memory for storing programs or instructions that, when executed by the processor, cause a device to perform the methods described in the above method embodiments.

[0227] A system includes a terminal device and a network device as described in the above embodiments, or means for implementing the terminal device function and means for implementing the network device function as described in the above embodiments.

[0228] In this application embodiment, the processor can be a general-purpose processor, digital signal processor, application-specific integrated circuit, field-programmable gate array or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in this application embodiment. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0229] In the embodiments of this application, the memory can be non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). Memory is any other medium capable of carrying or storing desired program code in the form of instructions or data structures, and accessible by a computer, but is not limited thereto. The memory in the embodiments of this application can also be a circuit or any other device capable of implementing storage functions, used to store program instructions and / or data.

[0230] The methods provided in this application can be implemented entirely or partially through software, hardware, firmware, or any combination thereof. When implemented in software, they can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., SSDs), etc.

[0231] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for receiving beam information, characterized in that, include: The network device sends a first activation signaling message to the terminal device. The first activation signaling message is used to activate a first cell, which is a secondary cell with a PUCCH. The second cell is pre-configured with the beam information reporting of the first cell. The network device in the second cell receives the beam information from the first cell from the terminal device. The second cell is the primary cell or primary auxiliary cell of the first cell. The first cell is an unknown cell.

2. The method as described in claim 1, characterized in that, Also includes: The network device receives a valid CSI from the terminal device, the valid CSI indicating that the activation of the first cell has been completed.

3. The method as described in claim 1 or 2, characterized in that, Also includes: The network device determines whether the first cell is an unknown cell; If the first cell is an unknown cell, the network device configures a Transmission Configuration Indicator (TCI) and / or uplink spatial relationship for the first cell based on the beam information of the first cell.

4. A method for reporting beam information, characterized in that, include: The terminal device receives a first activation signaling from the network device. The first activation signaling is used to activate a first cell, which is a secondary cell with a PUCCH. The second cell is pre-configured with the beam information reporting of the first cell. The terminal device in the second cell periodically sends the beam information of the first cell to the network device. The second cell is the main cell or the main auxiliary cell of the first cell. When the preset conditions are met, the terminal device stops in the second cell and periodically reports all or part of the beam information of the first cell, which is an unknown cell.

5. The method as described in claim 4, characterized in that, The preset conditions include at least one of the following: The terminal device receives a Transmission Configuration Indication (TCI) and / or an Uplink Spatial Relationship Indication from the network device; The terminal device transmits the first valid CSI of the first cell in the second cell; The terminal device sends a valid CSI to the network device, and the valid CSI indicates that the activation of the first cell has been completed; The terminal device receives a Physical Downlink Control Channel (PDCCH) command or valid TA information from the network device. The PDCCH command is used to trigger random access for the terminal device. The PDCCH command includes the beam information of the first cell. The valid TA information is allocated to the terminal device by the network device during the random access process.

6. The method as described in claim 4 or 5, characterized in that, Also includes: The terminal device sends a valid CSI to the network device, and the valid CSI indicates that the activation of the first cell has been completed.

7. A beam information receiving device, characterized in that, include: A communication unit is used to send a first activation signaling to a terminal device. The first activation signaling is used to activate a first cell, which is a secondary cell with a PUCCH. The communication unit is configured to receive beam information from the first cell in the second cell when the beam information of the first cell is pre-configured in the second cell, wherein the second cell is the primary cell or primary auxiliary cell of the first cell; and the first cell is an unknown cell.

8. The apparatus as claimed in claim 7, characterized in that, The communication unit is further used for: A valid CSI is received from the terminal device, the valid CSI indicating that the activation of the first cell is complete.

9. The apparatus as described in claim 7 or 8, characterized in that, The device further includes a processing unit, the processing unit being used for: Determine whether the first cell is an unknown cell; If the first cell is an unknown cell, then based on the beam information of the first cell, configure the Transmission Configuration Indicator (TCI) and / or uplink spatial relationship for the first cell.

10. A beam information reporting device, characterized in that, include: A communication unit is configured to receive a first activation signaling from a network device, the first activation signaling being used to activate a first cell, the first cell being a secondary cell with a PUCCH. The communication unit is also used to periodically send the beam information of the first cell to the network device in the second cell when the beam information of the first cell is pre-configured in the second cell, wherein the second cell is the main cell or the main auxiliary cell of the first cell. The processing unit is configured to stop in the second cell when a preset condition is met, and periodically report all or part of the beam information of the first cell, where the first cell is an unknown cell.

11. The apparatus as claimed in claim 10, characterized in that, The preset conditions include at least one of the following: The terminal device receives a Transmission Configuration Indication (TCI) and / or an Uplink Spatial Relationship Indication from the network device; The terminal device transmits the first valid CSI of the first cell in the second cell; The terminal device sends a valid CSI to the network device, and the valid CSI indicates that the activation of the first cell has been completed; The terminal device receives a Physical Downlink Control Channel (PDCCH) command or valid TA information from the network device. The PDCCH command is used to trigger random access for the terminal device. The PDCCH command includes the beam information of the first cell. The valid TA information is allocated to the terminal device by the network device during the random access process.

12. The apparatus as claimed in claim 10 or 11, characterized in that, The communication unit is further used for: A valid CSI is sent to the network device, indicating that the activation of the first cell is complete.

13. A communication device, characterized in that, The device includes a processor and a memory, the memory storing instructions, which, when executed by the processor, cause the device to perform the method of any one of claims 1 to 3, or cause the device to perform the method of any one of claims 4 to 6.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 3, or the method of any one of claims 4 to 6.

15. A computer program product, characterized in that, The computer program product includes a computer program that, when run on a computer, causes the computer to perform the method as described in any one of claims 1 to 3, or causes the computer to perform the method as described in any one of claims 4 to 6.

16. A chip system, characterized in that, The chip system includes: A processor and an interface, the processor being configured to call and execute instructions from the interface, wherein when the processor executes the instructions, it implements the method as described in any one of claims 1 to 3, or the method as described in any one of claims 4 to 6.

17. A circuit system, characterized in that, The circuit system includes: A processor and an interface, the processor being configured to call and execute instructions from the interface, wherein when the processor executes the instructions, it implements the method as described in any one of claims 1 to 3, or the method as described in any one of claims 4 to 6.

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