Communication method and device, computer program product and readable storage medium

Abstract

A communication method and apparatus, a computer program product, and a readable storage medium, the communication method comprising: acquiring first indication information, the first indication information indicating at least one of the following: a time domain resource configuration parameter corresponding to an uplink wake-up signal; a frequency domain resource configuration parameter corresponding to the uplink wake-up signal; sending the uplink time advance of the uplink wake-up signal; and determining whether to send the uplink wake-up signal based on the first indication information, the uplink wake-up signal being used for triggering system information block transmission. By adopting the scheme, the system information block can be sent as required.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and in particular to a communication method and apparatus, a computer program product, and a readable storage medium. Background Technology

[0002] In satellite communication systems, the coverage area of ​​a satellite can be composed of multiple wavelengths, and the diameter of the coverage area of ​​a single wavelength can reach tens of kilometers.

[0003] For each spectral position, coverage and service can be provided through a single beam. Considering factors such as satellite power limitations and antenna configuration, satellites typically cannot simultaneously provide a large number of beams to cover every spectral position. Generally, the satellite needs to use Time Division Multiplexing (TDM) to achieve beam coverage for each spectral position, resulting in discontinuous beam coverage for each cell within the satellite coverage area. Improving the coverage efficiency of satellite communication systems in cases of discontinuous cell coverage is a key challenge. Summary of the Invention

[0004] The objective of this invention is at least to provide a communication method that enables the on-demand transmission of system information blocks.

[0005] In a first aspect, the present invention provides a communication method, comprising: acquiring first indication information, the first indication information indicating at least one of the following: time-domain resource configuration parameters corresponding to an uplink wake-up signal; frequency-domain resource configuration parameters corresponding to an uplink wake-up signal; uplink timing advance for sending the uplink wake-up signal; and determining, based on the first indication information, whether to send the uplink wake-up signal, the uplink wake-up signal being used to trigger system information block transmission.

[0006] The network device sends first indication information to the terminal device. This first indication information specifies at least one of the following: time-domain resource configuration parameters corresponding to the uplink wake-up signal, frequency-domain resource configuration parameters corresponding to the uplink wake-up signal, and uplink timing advance for sending the uplink wake-up signal. Based on the first indication information, the terminal device determines whether to send an uplink wake-up signal. If it determines to send the uplink wake-up signal, it determines the uplink wake-up signal resources based on the first indication information and then sends the uplink wake-up signal. Upon receiving the uplink wake-up signal, the network device sends a system information block to the terminal device, thereby enabling on-demand transmission of system information blocks and achieving on-demand satellite coverage, thus improving the effectiveness of satellite coverage.

[0007] Optionally, the first indication information is carried by the master system information block in the target synchronization signal block, and the target synchronization signal block is one of the synchronization signal blocks that meet the signal quality strength condition.

[0008] The network device selects a target synchronization signal block from all synchronization signal blocks that meet the signal quality strength requirements, and the target synchronization signal block carries the first indication information. The terminal device can then obtain the first indication information from the acquired target synchronization signal block, and thus determine the uplink wake-up signal resource.

[0009] Optionally, the time-domain resource configuration parameters corresponding to the uplink wake-up signal include: index information of the set of time-domain resource configuration parameters for the uplink wake-up signal.

[0010] Optionally, the first indication information includes an uplink wake-up signal time-domain resource indication field, which carries index information of the uplink wake-up signal time-domain resource configuration parameter set.

[0011] Optionally, the set of time-domain resource configuration parameters includes at least one of the following: the time-domain starting system frame number of the uplink wake-up signal resource, the time-domain starting timeslot number of the uplink wake-up signal resource, the time-domain starting symbol identifier of the uplink wake-up signal resource, the number of uplink wake-up signal resources contained in each timeslot, the number of interval symbols between two adjacent uplink wake-up signal resources in the time domain, the number of symbols occupied by a single uplink wake-up signal resource in the time domain, and the period of the uplink wake-up signal resource.

[0012] Based on the received first indication information, the terminal device obtains the index information of the uplink wake-up signal time domain resource configuration parameter set, and is able to determine the uplink wake-up signal time domain resources.

[0013] Optionally, the time-domain resource configuration parameters corresponding to the uplink wake-up signal include a time-domain offset, which is the time interval between the time-domain starting position of the uplink wake-up signal resource and the time-domain position associated with the target synchronization signal block.

[0014] Optionally, the time-domain location associated with the target synchronization signal block includes any of the following: the time-domain end position of the half-frame in which the target synchronization signal block is located, the time-domain start position of the half-frame in which the target synchronization signal block is located, the time slot in which the last synchronization signal block in the synchronization signal block burst in which the target synchronization signal is located, and the time slot in which the first synchronization signal block in the synchronization signal block burst in which the target synchronization signal is located.

[0015] Optionally, the time-domain resource configuration parameters may further include: the number of interval symbols between two adjacent uplink wake-up signal resources in the time domain.

[0016] Based on the received first indication information, the terminal device can obtain information such as the time domain offset and the number of interval symbols between two adjacent uplink wake-up signal resources in the time domain, and can also determine the uplink wake-up signal time domain resources.

[0017] Optionally, the uplink timing advance for sending the uplink wake-up signal is determined based on the time domain offset.

[0018] Optionally, the duration corresponding to the uplink timing advance of sending the uplink wake-up signal is equal to the duration corresponding to the time domain offset.

[0019] Terminal devices can determine the uplink timing advance of the uplink wake-up signal based on the time domain offset. Therefore, by implicitly indicating the uplink timing advance of the uplink wake-up signal, the downlink overhead of network devices can be reduced.

[0020] Optionally, the first indication information includes an uplink wake-up signal time domain offset indication field; when the uplink wake-up signal time domain offset indication field takes a first value, it indicates that the target synchronization signal block is not associated with uplink wake-up signal resources; when the uplink wake-up signal time domain offset indication field takes a second value, it indicates the time domain offset; the first value and the second value are not equal.

[0021] The terminal device receives the first indication information and obtains the value of the time-domain offset indication field from it. Based on the value of the time-domain offset indication field, the terminal device determines whether an uplink wake-up signal needs to be sent, whether the target synchronization signal block is associated with the uplink wake-up signal resource, and the time-domain offset.

[0022] Optionally, sending the uplink wake-up signal based on the first indication information includes: sending the uplink wake-up signal using the uplink wake-up signal resources associated with the target synchronization signal block.

[0023] Optionally, the terminal device may also receive second indication information, which is used to determine the synchronization signal block scheduled by the associated system information block and / or the synchronization signal block not scheduled by the associated system information block.

[0024] The network device sends a second indication message to the terminal device. Based on the second indication message, the terminal device determines the synchronization signal block associated with the system information block scheduling, and can then determine the synchronization signal block not associated with the system information block scheduling. The terminal device can associate the uplink wake-up signal resource with the synchronization signal block not associated with the system information block scheduling, thereby determining the uplink wake-up signal resource for sending the uplink wake-up signal.

[0025] Optionally, the second indication information includes a bit map, where each bit in the bit map is associated with a synchronization signal block; the j-th bit of the bit map takes a first value, indicating that SSB j is a synchronization signal block scheduled by an associated system information block; the j-th bit of the bit map takes a second value, indicating that SSB j is a synchronization signal block not associated with a system information block; j is a positive integer and 0≤j≤N-1, where N is the total number of SSBs actually transmitted in a single cell.

[0026] Optionally, the second indication information indicates the number K of synchronization signal blocks scheduled by the associated system information block; SSBi is the synchronization signal block scheduled by the associated system information block, i is a positive integer and 0≤i≤K-1.

[0027] Optionally, the second indication information indicates the number X of synchronization signal blocks not associated with system information block scheduling; SSB i is the synchronization signal block associated with system information block scheduling, i is a positive integer and 0≤i≤NX-1, and N is the total number of synchronization signal blocks actually sent in a single cell.

[0028] Network devices can use different methods to indicate to terminal devices which synchronization signal blocks are associated with system information block scheduling, and / or which synchronization signal blocks are not associated with system information block scheduling.

[0029] Optionally, the terminal device can also determine the time slot of the PDCCH listening time corresponding to the synchronization signal block of the associated system information block scheduling, and the PDCCH listening time is used to receive system information block scheduling information.

[0030] Optionally, the time slot n0 corresponding to the PDCCH monitoring opportunity of the synchronization signal block scheduled by the i-th associated system information block is: This refers to the total number of time slots in a radio frame when μ is the subcarrier spacing parameter, and O and M are the PDCCH listening timing configuration parameters. To calculate the floor function of i·M.

[0031] The terminal device can determine the PDCCH listening time for receiving system information block scheduling information based on the second indication information, and receive system information blocks at the determined PDCCH listening time.

[0032] Optionally, the uplink wake-up signal resource that sends the uplink wake-up signal is associated with the synchronization signal block scheduled by the unassociated system signal block SSB1.

[0033] Secondly, the present invention also provides another communication method, comprising: receiving second indication information, the second indication information being used to determine a synchronization signal block scheduled by an associated system information block and / or a synchronization signal block scheduled by an unassociated system information block.

[0034] The network device sends a second indication message to the terminal device. Based on the second indication message, the terminal device determines the synchronization signal block associated with the system information block scheduling, and / or determines the synchronization signal block not associated with the system information block scheduling.

[0035] Optionally, the second indication information includes a bit map, where each bit in the bit map is associated with a synchronization signal block; the j-th bit of the bit map takes a first value, indicating that SSB j is a synchronization signal block scheduled by an associated system information block; the j-th bit of the bit map takes a second value, indicating that SSB j is a synchronization signal block not associated with a system information block; j is a positive integer and 0≤j≤N-1, where N is the total number of SSBs actually transmitted in a single cell.

[0036] Optionally, the second indication information indicates the number K of synchronization signal blocks scheduled by the associated system information block; SSBi is the synchronization signal block scheduled by the associated system information block, i is a positive integer and 0≤i≤K-1.

[0037] Optionally, the second indication information indicates the number X of synchronization signal blocks not associated with system information block scheduling; SSB i is the synchronization signal block associated with system information block scheduling, i is a positive integer and 0≤i≤NX-1, and N is the total number of synchronization signal blocks actually sent in a single cell.

[0038] Optionally, the terminal device can also determine the time slot of the PDCCH listening time corresponding to the synchronization signal block of the associated system information block scheduling, and the PDCCH listening time is used to receive system information block scheduling information.

[0039] Optionally, the time slot n0 corresponding to the PDCCH monitoring opportunity of the synchronization signal block scheduled by the i-th associated system information block is: This refers to the total number of time slots in a radio frame when μ is the subcarrier spacing parameter, and O and M are the PDCCH listening timing configuration parameters. To calculate the floor function of i·M.

[0040] Optionally, the terminal device may associate the synchronization signal block scheduled by the unassociated system signal block with the uplink wake-up signal resource.

[0041] Thirdly, the present invention also provides another communication method, comprising: sending first indication information, the first indication information indicating at least one of the following: time-domain resource configuration parameters corresponding to an uplink wake-up signal, frequency-domain resource configuration parameters corresponding to an uplink wake-up signal, and uplink timing advance for sending the uplink wake-up signal; and transmitting a system information block in response to receiving an uplink wake-up signal.

[0042] Optionally, the first indication information is carried by the master system information block in the target synchronization signal block, and the target synchronization signal block is one of all synchronization signal blocks that meet the signal quality strength condition.

[0043] Optionally, the time-domain resource configuration parameters corresponding to the uplink wake-up signal include: index information of the set of time-domain resource configuration parameters for the uplink wake-up signal.

[0044] Optionally, the first indication information includes an uplink wake-up signal time domain resource indication field, which carries index information of the uplink wake-up signal time domain resource configuration parameter set.

[0045] Optionally, the set of time-domain resource configuration parameters includes at least one of the following: the time-domain starting system frame number of the uplink wake-up signal resource, the time-domain starting timeslot number of the uplink wake-up signal resource, the time-domain starting symbol identifier of the uplink wake-up signal resource, the number of uplink wake-up signal resources contained in each timeslot, the number of interval symbols between two adjacent uplink wake-up signal resources in the time domain, the number of symbols occupied by a single uplink wake-up signal resource in the time domain, and the period of the uplink wake-up signal resource.

[0046] Optionally, the time-domain resource configuration parameters corresponding to the uplink wake-up signal include a time-domain offset, which is the time interval between the time-domain starting position of the uplink wake-up signal resource and the time-domain position associated with the target synchronization signal block.

[0047] Optionally, the time-domain location associated with the target synchronization signal block includes any of the following: the time-domain end position of the half-frame in which the target synchronization signal block is located, the time-domain start position of the half-frame in which the target synchronization signal block is located, the time slot in which the last synchronization signal block in the synchronization signal block burst in which the target synchronization signal is located, and the time slot in which the first synchronization signal block in the synchronization signal block burst in which the target synchronization signal is located.

[0048] Optionally, the time-domain resource configuration parameters may further include: the number of interval symbols between two adjacent uplink wake-up signal resources in the time domain.

[0049] Optionally, the uplink timing advance for sending the uplink wake-up signal is determined based on the time domain offset.

[0050] Optionally, the duration corresponding to the uplink timing advance of sending the uplink wake-up signal is equal to the duration corresponding to the time domain offset.

[0051] Optionally, the first indication information includes an uplink wake-up signal time domain offset indication field; when the uplink wake-up signal time domain offset indication field takes a first value, it indicates that the target synchronization signal block is not associated with uplink wake-up signal resources; when the uplink wake-up signal time domain offset indication field takes a second value, it indicates the time domain offset; the first value and the second value are not equal.

[0052] Optionally, the network device may also send a second indication information to the terminal device, the second indication information being used to indicate the synchronization signal block scheduled by the associated system information block and / or the synchronization signal block not scheduled by the associated system information block.

[0053] Optionally, the second indication information includes a bit map, where each bit in the bit map is associated with a synchronization signal block; the j-th bit of the bit map takes a first value, indicating that SSB j is a synchronization signal block scheduled by an associated system information block; the j-th bit of the bit map takes a second value, indicating that SSB j is a synchronization signal block not associated with a system information block; j is a positive integer and 0≤j≤N-1, where N is the total number of SSBs actually transmitted in a single cell.

[0054] Optionally, the second indication information indicates the number K of synchronization signal blocks scheduled by the associated system information block; SSBi is the synchronization signal block scheduled by the associated system information block, i is a positive integer and 0≤i≤K-1.

[0055] Optionally, the second indication information indicates the number X of synchronization signal blocks not associated with system information block scheduling; SSB i is the synchronization signal block associated with system information block scheduling, i is a positive integer and 0≤i≤NX-1, and N is the total number of synchronization signal blocks actually sent in a single cell.

[0056] Fourthly, the present invention also provides another communication method, comprising: sending a second indication information, the second indication information indicating a synchronization signal block scheduled by an associated system information block and / or a synchronization signal block scheduled by an unassociated system information block.

[0057] Optionally, the second indication information includes a bit map, where each bit in the bit map is associated with a synchronization signal block; the j-th bit of the bit map takes a first value, indicating that SSB j is a synchronization signal block scheduled by an associated system information block; the j-th bit of the bit map takes a second value, indicating that SSB j is a synchronization signal block not associated with a system information block; j is a positive integer and 0≤j≤N-1, where N is the total number of SSBs actually transmitted in a single cell.

[0058] Optionally, the second indication information indicates the number K of synchronization signal blocks scheduled by the associated system information block; SSBi is the synchronization signal block scheduled by the associated system information block, i is a positive integer and 0≤i≤K-1.

[0059] Optionally, the second indication information indicates the number X of synchronization signal blocks not associated with system information block scheduling; SSB i is the synchronization signal block associated with system information block scheduling, i is a positive integer and 0≤i≤NX-1, and N is the total number of synchronization signal blocks actually sent in a single cell.

[0060] Optionally, the terminal device can also determine the time slot of the PDCCH listening time corresponding to the synchronization signal block of the associated system information block scheduling, and the PDCCH listening time is used to receive system information block scheduling information.

[0061] Fifthly, the present invention also provides a communication device, comprising: an acquisition unit, configured to acquire first indication information, the first indication information indicating at least one of the following: time-domain resource configuration parameters corresponding to an uplink wake-up signal, frequency-domain resource configuration parameters corresponding to an uplink wake-up signal, and uplink timing advance for sending the uplink wake-up signal; and a determination unit, configured to determine, based on the first indication information, whether to send the uplink wake-up signal, the uplink wake-up signal being used to trigger system information block transmission.

[0062] In a sixth aspect, the present invention also provides another communication device, comprising: a transmitting unit for transmitting first indication information, the first indication information indicating at least one of the following: time-domain resource configuration parameters corresponding to an uplink wake-up signal, and an uplink timing advance corresponding to the uplink wake-up signal; and a processing unit for transmitting a system information block in response to receiving an uplink wake-up signal.

[0063] In a seventh aspect, the present invention also provides another communication device, comprising: a receiving unit for receiving second indication information, the second indication information being used to determine a synchronization signal block scheduled by an associated system information block and / or a synchronization signal block not scheduled by an associated system information block.

[0064] Eighthly, the present invention also provides another communication device, comprising: a transmitting unit for transmitting second indication information, the second indication information indicating a synchronization signal block scheduled by an associated system information block and / or a synchronization signal block not scheduled by an associated system information block.

[0065] In a ninth aspect, the present invention also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, having stored thereon a computer program that, when executed by a processor, performs the steps of any of the above-described communication methods.

[0066] In a tenth aspect, the present invention also provides a computer program product, including a computer program / instructions, wherein when the computer program / instructions are run by a computer, the steps of the above-described communication method are executed.

[0067] In another aspect, the present invention also provides a chip storing a computer program, which, when executed by the chip, implements the steps of the communication method described above.

[0068] In a twelfth aspect, the present invention also provides a communication system, including a network device and a terminal device for performing the above-described communication method.

[0069] In a thirteenth aspect, the present invention also provides another communication device, including a memory and a processor, wherein the memory stores a computer program executable on the processor, and the processor executes the steps of any of the communication methods described above when running the computer program. Attached Figure Description

[0070] Figure 1 This is a flowchart of a communication method according to an embodiment of the present invention;

[0071] Figure 2 This is a schematic diagram illustrating the distribution of uplink wake-up signal resources in an embodiment of the present invention.

[0072] Figure 3 This is a schematic diagram illustrating the distribution of uplink wake-up signal resources within a time slot in an embodiment of the present invention;

[0073] Figure 4 This is a flowchart of another communication method in an embodiment of the present invention;

[0074] Figure 5 This is a flowchart of another communication method in an embodiment of the present invention;

[0075] Figure 6 This is a flowchart of another communication method in an embodiment of the present invention;

[0076] Figure 7 This is a schematic diagram of the structure of a communication device according to an embodiment of the present invention;

[0077] Figure 8 This is a schematic diagram of the structure of another communication device in an embodiment of the present invention;

[0078] Figure 9 This is a schematic diagram of the structure of another communication device in an embodiment of the present invention;

[0079] Figure 10 This is a schematic diagram of the structure of another communication device in an embodiment of the present invention;

[0080] Figure 11 This is a schematic diagram of the structure of another communication device in an embodiment of the present invention. Detailed Implementation

[0081] In existing technologies, satellites achieve beam coverage for each spectral position through TDM (Transmission Directional Management). Assuming a cell corresponds to 4 spectral positions, and one beam needs to cover 16 spectral positions through TDM, in this scenario, one satellite beam needs to serve 4 cells through TDM. Therefore, the time for each cell to be covered by the beam is not continuous.

[0082] The number of terminal devices and their traffic volume may vary in different cell coverage areas or different frequency band coverage areas. The dwell time of the beam in different cells or on different frequency bands needs to be allocated on demand. Therefore, how to achieve on-demand transmission of system information blocks is a problem that needs to be solved.

[0083] In this embodiment of the invention, the terminal device, based on the first indication information sent by the network device, can determine whether an uplink wake-up signal needs to be sent, and determine the uplink wake-up signal resource for sending the uplink wake-up signal, and then send the uplink wake-up signal. An uplink wake-up signal resource represents a time-frequency resource block used by the terminal device to send the wake-up signal. Upon receiving the uplink wake-up signal, the network device sends a system information block to the terminal device, thereby enabling on-demand transmission of the system information block. This, in turn, enables on-demand satellite coverage and improves the effectiveness of satellite coverage.

[0084] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0085] The terminal device described in this application embodiment is a device with wireless communication capabilities, and may also be referred to as a terminal, mobile station (MS), mobile terminal (MT), access terminal device, vehicle-mounted terminal device, industrial control terminal device, user equipment (UE) unit, UE station, mobile station, remote station, remote terminal device, mobile device, wireless communication device, UE agent, or UE device, etc. The UE can be fixed or mobile. It should be noted that the UE can support at least one wireless communication technology, such as LTE, NR, etc. For example, a UE can be a mobile phone, tablet, desktop computer, laptop computer, all-in-one computer, vehicle terminal, virtual reality (VR) UE, augmented reality (AR) UE, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, wearable device, UE in future mobile communication networks, or UE in future evolved public land mobile network (PLMN), etc. In some embodiments of this application, the UE may also be a device with transceiver functionality, such as a chip system. The chip system may include a chip, and may also include other discrete components.

[0086] In this application embodiment, the network device is a device that provides wireless communication functions for terminal devices, and can also be referred to as a radio access network (RAN) device, access network element, access network equipment, etc. The network device can support at least one wireless communication technology, such as LTE, NR, etc. For example, the network device includes, but is not limited to: next-generation node B (gNB), evolved node B (eNB), radio network controller (RNC), node B (NB), basestation controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved node B, or home node B (HNB)), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, etc. Network devices can also be wireless controllers, centralized units (CUs), and / or distributed units (DUs) in cloud radio access network (CRAN) scenarios, or they can be relay stations, access points, vehicle-mounted devices, terminal devices, wearable devices, and network devices in future mobile communications or future evolved PLMNs. In some embodiments, network devices can also be means for providing wireless communication capabilities to terminal devices, such as chip systems. For example, a chip system may include chips, and may also include other discrete devices.

[0087] In some embodiments, the network device can also communicate with Internet Protocol (IP) networks, such as the Internet, private IP networks, or other data networks.

[0088] This invention provides a communication method, referring to... Figure 1 The following will provide a detailed explanation through specific steps.

[0089] In specific implementation, the communication methods provided in steps 101 to 102 below can be executed by a chip with data processing capabilities (such as a baseband chip), or by a chip module with data processing capabilities (such as a baseband chip module), or by the terminal device itself. The following explanation uses the terminal device executing the communication methods provided in steps 101 to 102 as an example.

[0090] Step 101: Obtain the first instruction information.

[0091] In practice, the network device can send the first instruction information to the terminal device. Correspondingly, the terminal device can receive the first instruction information sent by the network device.

[0092] In this embodiment of the invention, the first indication information may include at least one of the following: time-domain resource configuration parameters corresponding to the uplink wake-up signal, frequency-domain resource configuration parameters corresponding to the uplink wake-up signal, and uplink timing advance of the uplink wake-up signal.

[0093] In some embodiments, the frequency domain resource configuration parameters corresponding to the uplink wake-up signal can be pre-configured in the communication protocol. In this scenario, the first indication information may include any one or two of the following: the time domain resource configuration parameters corresponding to the uplink wake-up signal, and the uplink timing advance of the uplink wake-up signal.

[0094] In specific implementation, when the terminal device receives the first indication information, it can obtain the time domain resource configuration parameters corresponding to the uplink wake-up signal indicated by the first indication information, and thus determine the uplink wake-up signal time domain resources corresponding to the uplink wake-up signal.

[0095] In practical implementation, the first indication information can be carried by the Master Information Block (MIB) in the target synchronization signal block. The terminal device can obtain the signal quality corresponding to each synchronization signal block in the cell and select a synchronization signal block that meets the signal quality strength conditions. The number of synchronization signal blocks that meet the signal quality strength conditions can be one or more, and the terminal device can select one synchronization signal block as the target synchronization signal block from among the synchronization signal blocks that meet the signal quality strength conditions. The terminal device can then receive the MIB sent by the network device based on the selected target synchronization signal block.

[0096] In some embodiments, the terminal device may randomly select a synchronization signal block as the target synchronization signal block from among the synchronization signal blocks that meet the signal quality strength conditions. In other embodiments, the terminal device may select the synchronization signal block with the best signal quality from among the synchronization signal blocks that meet the signal quality strength conditions as the target synchronization signal block. Signal quality strength can be characterized by Reference Signal Receiving Power (RSRP) or Reference Signal Receiving Quality (RSRQ). The synchronization signal block with the best signal quality may be the synchronization signal block with the largest corresponding RSRP value or the synchronization signal block with the largest corresponding RSRQ value.

[0097] For example, the terminal device can obtain synchronization signal blocks within the cell that meet the signal quality strength conditions as synchronization signal block 1, synchronization signal block 2, and synchronization signal block 3. From these three synchronization signal blocks, the terminal device selects synchronization signal block 2, which has the best signal quality, as the target synchronization signal block.

[0098] Specifically, the process and principle by which terminal devices obtain the signal quality corresponding to each synchronization signal block within the cell can be found in existing technologies and will not be described in detail here.

[0099] In this embodiment of the invention, the time-domain resource configuration parameters corresponding to the uplink wake-up signal resource may include: index information of the uplink wake-up signal time-domain resource configuration parameter set. Specifically, the first indication information may include the index information of the uplink wake-up signal time-domain resource configuration parameter set, and the index information of the uplink wake-up signal time-domain resource configuration parameter set indicates the time-domain resource configuration parameters corresponding to the uplink wake-up signal.

[0100] For ease of description, in the following embodiments, the index information of the uplink wake-up signal time-domain resource configuration parameter set is referred to as time-domain index information; and the time-domain resource configuration parameters corresponding to the uplink wake-up signal are referred to as time-domain resource configuration parameters. Unless otherwise stated, the time-domain index information mentioned below can refer to the index information of the uplink wake-up signal time-domain resource configuration parameter set; and the time-domain resource configuration parameters mentioned below can refer to the time-domain resource configuration parameters corresponding to the uplink wake-up signal.

[0101] In practical implementation, a mapping relationship between time-domain index information and the set of time-domain resource configuration parameters (hereinafter referred to as the first mapping relationship) can be predefined. This first mapping relationship can be known jointly by the terminal device and the network device. The first mapping relationship can be configured in the communication protocol. Alternatively, the network device can pre-configure the first mapping relationship and send it to the terminal device via configuration information.

[0102] In some embodiments, the network device can configure multiple sets of uplink wake-up signal time-domain resource configuration parameters, each set corresponding to a time-domain index. The network device indicates the time-domain index to the terminal device through first indication information. Accordingly, the terminal device can determine the corresponding set of uplink wake-up signal time-domain resource configuration parameters based on the time-domain index information carried in the first indication information.

[0103] For example, a network device may be configured with four sets of uplink wake-up signal time-domain resource configuration parameters, with corresponding time-domain index information of 0, 1, 2, and 3, respectively. In the first indication information, the network device indicates that the time-domain index information is "1". Upon receiving the first indication information, the terminal device can obtain the set of uplink wake-up signal time-domain resource configuration parameters with time-domain index information "1", and thus determine the time-domain resource configuration parameters corresponding to the uplink wake-up signal.

[0104] In other embodiments, the first mapping relationship described above can be represented in the form of a mapping table. In the mapping table, each row can correspond to a set of uplink wake-up signal time-domain resource configuration parameters.

[0105] In specific implementation, the set of time-domain resource configuration parameters may include at least one of the following: the time-domain start position of the uplink wake-up signal resource, the number of uplink wake-up signal resources contained in each time slot, the number of interval symbols between two adjacent uplink wake-up signal resources in the time domain, the number of symbols occupied in the time domain by a single uplink wake-up signal resource, and the period of the uplink wake-up signal resource.

[0106] For example, the set of uplink wake-up signal time domain resource configuration parameters includes the following parameters: the time domain start symbol of the uplink wake-up signal resource, the number of symbols between two adjacent uplink wake-up signal resources in the time domain is 2, the period of the uplink wake-up signal resource is 2 time slots, and the number of symbols used by a single uplink wake-up signal resource is 4, etc.

[0107] Reference Figure 2 The present invention provides a schematic diagram of the distribution of uplink wake-up signal resources in an embodiment of the present invention. Figure 2 In this design, within each time slot (slot n, slot m), the number of uplink wake-up signal resources multiplexed in the time domain is 2, and the number of uplink wake-up signal resources multiplexed in the frequency domain is also 2. Within each time slot, the uplink wake-up signal resources are as follows: Resource 1, Resource 2, Resource 3, and Resource 4. Resource 1 and Resource 2 are multiplexed in the frequency domain, and Resource 3 and Resource 4 are multiplexed in the frequency domain. Resource 1 and Resource 3 are multiplexed in the time domain, and Resource 2 and Resource 4 are multiplexed in the frequency domain.

[0108] In the uplink wake-up signal time-domain resource configuration parameter set, the time interval Δt between resource 1 and resource 3 is configured, and the length of Δt is 2 symbols. The period of the uplink wake-up signal resource is T. The unit of T can be time slots, symbol count, etc.

[0109] In some embodiments, the time-domain start position of the uplink wake-up signal resource can be characterized by any of the following: the system frame number (SFN) of the uplink wake-up signal resource in the time domain, the time-domain start slot number of the uplink wake-up signal resource in the time domain, or the time-domain start symbol identifier of the uplink wake-up signal resource in the time domain.

[0110] The uplink wake-up signal resource time-domain start system frame number is the system frame number corresponding to the start position of the uplink wake-up signal resource in the time domain. The uplink wake-up signal resource time-domain start timeslot number is the timeslot number corresponding to the start position of the uplink wake-up signal resource in the time domain. The uplink wake-up signal resource time-domain start symbol identifier is the identifier of the symbol corresponding to the start position of the uplink wake-up signal resource in the time domain.

[0111] In specific implementation, the first indication information may include an uplink wake-up signal time-domain resource indication field (hereinafter referred to as the time-domain resource indication field), which may carry time-domain index information. The network device configures the value of the time-domain resource indication field in the first indication information, that is, configures the time-domain index information. When the terminal device receives the first indication information, it obtains the value of the time-domain resource indication field from it, thereby determining the time-domain index information and subsequently determining the time-domain resource configuration parameters corresponding to the uplink wake-up signal.

[0112] In practical implementation, network devices can carry the uplink wake-up signal's uplink timing advance in the first indication information. The uplink timing advance can be characterized by the uplink timing advance step size, time slot, ms, frame, subframe, Tc, Ts, us, etc., as specified in the protocol.

[0113] In some embodiments, the first indication information may include an uplink timing advance indication field, the value of which represents the uplink timing advance for sending the uplink wake-up signal.

[0114] In specific implementation, the first indication information may also include the uplink wake-up signal frequency domain resource indication field (hereinafter referred to as the frequency domain resource indication field). The frequency domain resource indication field carries the index information of the uplink wake-up signal frequency domain resource configuration parameter set (hereinafter referred to as the frequency domain index information).

[0115] Based on the first indication information obtained, the terminal device obtains the frequency domain resource indication domain, determines the frequency domain index information carried by the frequency domain resource indication domain, and then determines the set of frequency domain resource configuration parameters for the uplink wake-up signal based on the frequency domain index information, thereby obtaining the frequency domain resource configuration parameters corresponding to the uplink wake-up signal.

[0116] In practical implementation, a mapping relationship between frequency domain index information and frequency domain resource configuration parameters (hereinafter referred to as the second mapping relationship) can be predefined. This second mapping relationship can be known jointly by the terminal device and the network device. The second mapping relationship can be configured in the communication protocol. Alternatively, the network device can pre-configure the second mapping relationship and send it to the terminal device via configuration information.

[0117] In some embodiments, the network device can configure multiple sets of uplink wake-up signal frequency domain resource configuration parameters, and each set of uplink wake-up signal frequency domain resource configuration parameters corresponds to a frequency domain index information.

[0118] In other embodiments, the second mapping relationship described above can be represented by a mapping table. In the mapping table, each row can correspond to a set of uplink wake-up signal frequency domain resource configuration parameters.

[0119] In specific implementation, frequency domain resource configuration parameters may include at least one of the following: the frequency domain start position of the uplink wake-up signal, the frequency domain bandwidth of a single uplink wake-up signal resource, the number of uplink wake-up signal resources that are frequency domain multiplexed, and the frequency domain spacing between two adjacent uplink wake-up signal resources.

[0120] like Figure 2 As shown, the number of uplink wake-up signal resources multiplexed in the frequency domain within a time slot is 2. Resources 1 and 2 are multiplexed in the frequency domain, and resources 3 and 4 are multiplexed in the frequency domain. The frequency domain spacing between resources 1 and 2 is Δf, and the frequency domain spacing between resources 3 and 4 is Δf. The unit of Δf can be kHz, resource block, subcarrier spacing, etc.

[0121] In this embodiment of the invention, the uplink wake-up signal time domain resource configuration parameters may include a time domain offset; wherein, the aforementioned time domain offset may be the time interval between the uplink wake-up signal resource time domain start position and the time domain position associated with the target synchronization signal block.

[0122] In some embodiments, the unit of time-domain offset can be a time slot, or it can be represented by ms, subframe, frame, symbol, etc. If the unit of time slot offset is a time slot, then the time slot offset can be: the time slot offset between the time-domain starting time slot of the uplink wake-up signal resource associated with the target synchronization signal block and the time-domain position associated with the target synchronization signal block.

[0123] In specific implementation, the time-domain location associated with the target synchronization signal block can include any of the following: the time-domain end position of the half-frame in which the target synchronization signal block is located, the time-domain start position of the half-frame in which the target synchronization signal block is located, the time slot in which the last synchronization signal block in the synchronization signal block burst in which the target synchronization signal block is located, and the time slot in which the first synchronization signal block in the synchronization signal block burst in which the target synchronization signal block is located.

[0124] The terminal device and the network device can pre-agree on the time-domain location associated with the target synchronization signal block. Then, the network device can indicate the uplink wake-up signal resource time-domain start position (hereinafter referred to as the time-domain start position) to the terminal device using the time-domain location associated with the target synchronization signal block and the time-domain offset. Accordingly, the terminal device can determine the time-domain start position of the uplink wake-up signal resource based on the received time-domain offset and the time-domain location associated with the target synchronization signal block.

[0125] In some embodiments, a synchronization signal block may be associated with one or more uplink wake-up signal resources. The number of uplink wake-up signal resources associated with a synchronization signal block may be the number of uplink wake-up signal resources multiplexed in the time domain or the number of uplink wake-up signal resources multiplexed in the frequency domain.

[0126] The number of uplink wake-up signal resources multiplexed in the time domain can be pre-configured in the communication protocol, or sent by the network device to the terminal device via the MIB. Similarly, the number of uplink wake-up signal resources multiplexed in the frequency domain can be pre-configured in the communication protocol, or sent by the network device to the terminal device via the MIB.

[0127] Alternatively, network devices can pre-configure the number of uplink time slots associated with synchronization signal blocks in the time domain. Uplink time slots include uplink wake-up signal resources, and the configuration includes the number of uplink wake-up signal resources contained in each uplink time slot, the number of uplink wake-up signal resources multiplexed in the frequency domain, etc.

[0128] Network devices can also configure the number of interval symbols between two adjacent uplink wake-up signal resources in the uplink wake-up signal time domain resource configuration parameter set.

[0129] It is understandable that the number of symbols between two adjacent uplink wake-up signal resources can also be configured in advance in the communication protocol.

[0130] Therefore, based on the time-domain offset, the time-domain start time slot of at least one uplink wake-up signal resource associated with the target synchronization signal block can be determined. Based on the number of time slots of the uplink wake-up signal resources, the number of uplink wake-up signal resources time-domain multiplexed in each time slot, the number of uplink wake-up signal resources frequency-domain multiplexed in each time slot, and the number of interval symbols between two adjacent uplink wake-up signal resources, the time-domain start positions of the other N-1 uplink wake-up signal resources associated with the target synchronization signal block can be determined.

[0131] Reference Figure 3 The present invention provides a schematic diagram of the distribution of uplink wake-up signal resources within a time slot in an embodiment of the present invention.

[0132] Figure 3 In a single timeslot, the number of uplink wake-up signal resources multiplexed in the time domain is 3, and the number of uplink wake-up signal resources multiplexed in the frequency domain is 3. The uplink wake-up signal resources associated with the target synchronization signal block include: Resources 1 to Resources 9. In the time domain, the time interval between the time domain start position of Resource 1 and the time domain position of the target synchronization signal block is offset. The time interval between Resource 1 and Resource 2 is Δ1, and the time interval between Resource 2 and Resource 3 is also Δ1.

[0133] The time-domain position of the target synchronization signal block mentioned above can refer to: the time-domain end position of the half-frame in which the target synchronization signal block is located; or, the time-domain start position of the half-frame in which the target synchronization signal block is located; or, the time slot in which the last synchronization signal block in the synchronization signal block burst in which the target synchronization signal block is located; or, the time slot in which the first synchronization signal block in the synchronization signal block burst in which the target synchronization signal block is located.

[0134] For example, the synchronization signal block burst containing the target synchronization signal block includes 4 synchronization signal blocks. In this synchronization signal block burst, the time slot where the first synchronization signal block is located is time slot 1, so the time domain position of the target synchronization signal block is time slot 1.

[0135] For example, if the starting position in the time domain of the half-frame containing the target synchronization signal block is T0, and the ending position in the time domain of the half-frame containing the target synchronization signal block is T1, then the time domain position of the target synchronization signal block is determined to be T0.

[0136] In specific implementation, the first indication information may include an uplink wake-up signal time domain offset indication field (hereinafter referred to as the offset indication field). The length of the offset indication field can be 1 bit or more bits.

[0137] When the offset indication field includes two or more bits, if the value of the offset indication field is the first value, it indicates that the current target synchronization signal block of the terminal device is not associated with the uplink wake-up signal resource; if the value of the offset indication field is the second value, the third value represents the time domain offset. The first and second values ​​are not equal, and the contents indicated by the first and second values ​​are known in advance by the terminal device and the network device.

[0138] In an embodiment of the present invention,

[0139] When the offset indication field includes two or more bits, if the offset indication field takes the first value, it indicates that the terminal device does not need to send an uplink wake-up signal, that is, it indicates that the terminal device does not need to request transmission; if the offset indication field takes the second value, it indicates that the terminal device's current target synchronization signal block is not associated with an uplink wake-up signal resource; if the offset indication field takes the third value, the third value represents the time domain offset. The first, second, and third values ​​are all different from each other, and the content indicated by the first, second, and third values ​​is known in advance by both the terminal device and the network device.

[0140] In some embodiments, the first value described above may correspond to all bits in the offset indicator field being 1, the second value may correspond to all bits in the offset indicator field being 0, and the third value may correspond to a sequence of bits in the offset indicator field that is not all 0 or all 1. Alternatively, the first value may correspond to all bits in the offset indicator field being 0, the second value may correspond to all bits in the offset indicator field being 1, and the third value may correspond to a sequence of bits in the offset indicator field that is not all 0 or all 1.

[0141] For example, the length of the time offset indicator field is 3 bits. When all bits of the time offset indicator field are 111, it indicates that the terminal device does not need to send an uplink wake-up signal; when all bits of the time offset indicator field are 000, it indicates that the target synchronization signal block is not associated with the uplink wake-up signal resource; when all bits of the time offset indicator field are 011, it indicates that the specific value of the time offset is 3 time slots.

[0142] In some embodiments, when the network device carries the time domain offset in the first indication information, it may also carry the uplink wake-up signal advance amount in the first indication information. The uplink advance amount can be characterized by time slots, ms, frames, subframes, Tc, Ts, us, etc.

[0143] In other embodiments, the uplink timing advance can be associated with the aforementioned time domain offset. In other words, the terminal device can determine the uplink timing advance based on the time domain offset. Therefore, in the first indication information, since the time domain offset is already carried, there is no need to carry the uplink timing advance, thus reducing the downlink overhead of the network device.

[0144] Specifically, the duration corresponding to the uplink timing advance can be equal to the duration corresponding to the time domain offset.

[0145] In practical implementation, a synchronization signal block can be associated with M uplink wake-up signal resources in the frequency domain. The value of M can be pre-configured in the communication protocol or sent to the terminal device by the network device via the MIB. The frequency domain spacing between two adjacent uplink wake-up signal resources can be pre-configured in the communication protocol or sent to the terminal device by the network device via the MIB. The aforementioned frequency domain spacing can be in units of resource blocks (RBs).

[0146] Step 102: Based on the first indication information, determine whether to send an uplink wake-up signal.

[0147] In this embodiment of the invention, the aforementioned uplink wake-up signal is used to trigger the transmission of System Information Blocks (SIBs). System Information Blocks may include SIB1 and SIB19.

[0148] In practice, the terminal device can send an uplink wake-up signal to the network device based on the first indication information. Upon receiving the uplink wake-up signal, the network device can send a system information block to the terminal device. This enables on-demand transmission of system information blocks.

[0149] Specifically, the terminal device can select the uplink wake-up signal resource associated with the target synchronization signal block (hereinafter referred to as the target uplink wake-up signal resource) and send the uplink wake-up signal to the network device based on the target uplink wake-up signal resource.

[0150] In some embodiments, an association between a target synchronization signal block and uplink wake-up signal resources can be pre-established. This association can be analogous to the mapping between Physical Random Access Channel (PRACH) resources and synchronization signal blocks. Therefore, the terminal device can determine the target uplink wake-up signal resource corresponding to the target synchronization signal block based on the pre-established association.

[0151] In practical implementation, the time interval between the time-domain start position of the target uplink wake-up signal resource selected by the terminal device and the time-domain end position of the target synchronization signal block is not less than the aforementioned uplink timing advance. The aforementioned time-domain start position can be characterized by a time-domain start symbol, a time-domain start slot, and a time-domain start time. Correspondingly, the time-domain end position can be characterized by a time-domain end symbol, a time-domain end slot, and a time-domain end time.

[0152] It is understandable that the representation of the start position in the time domain can be the same as the representation of the end position in the time domain. For example, if the start position in the time domain is represented by the start time slot, then correspondingly, the end position in the time domain is represented by the end time slot.

[0153] In practice, the uplink wake-up signal resources associated with the synchronization signal block burst need to be mapped to each synchronization signal block in the synchronization signal block burst at least once.

[0154] For example, a synchronization signal block burst includes three synchronization signal blocks, namely synchronization signal block 1, synchronization signal block 2, and synchronization signal block 3. The uplink wake-up signal resources associated with the synchronization signal block burst include uplink wake-up signal resources 1 to 9. The order of the uplink wake-up signal resources can follow the order of PRACH resources in the existing SSB to PRACH resource mapping or other methods. One uplink wake-up signal resource is associated with 1 / 3 of the SSBs, or one SSB is associated with 3 wake-up opportunity (RO) resources. Then, synchronization signal block 1 is associated with uplink wake-up signal resources 1, 2, and 3; synchronization signal block 2 is associated with uplink wake-up signal resources 4, 5, and 6; and synchronization signal block 3 is associated with uplink wake-up signal resources 7, 8, and 9.

[0155] In some embodiments, the ratio between the number of uplink wake-up signal resources and the number of synchronization signal blocks in a synchronization signal block burst can be called the mapping rate. The specific value of the mapping rate can be configured in advance in the communication protocol, or it can be indicated by the network device to the terminal device through the MIB.

[0156] In practice, a satellite's coverage area can contain multiple cells, and a cell can include multiple beam positions. Each beam position can correspond to a synchronization signal block, and each beam position can be covered and provide services through a beam. The aforementioned beam position is the beam location, which can be understood as the coverage area of ​​a beam.

[0157] In this embodiment of the invention, in order to achieve flexible transmission of system information blocks, the network device can send system information blocks on demand according to the waveform / synchronization signal block level. That is, the network device can send system information blocks at fixed waveforms and send system information blocks on demand at other waveforms.

[0158] For example, a cell may consist of 16 wavelengths, of which 8 wavelengths transmit system information blocks and the remaining 8 wavelengths transmit system information blocks as needed.

[0159] For bits that transmit system information blocks, it is necessary to associate them with Type 0 common physical downlink control channel (PDCCH) listening timing. For bits that do not transmit system information blocks, it is not necessary to associate them with Type 0 common PDCCH listening timing.

[0160] In practice, the terminal equipment needs to determine which waveform / synchronization signal blocks send system information blocks and which waveform / synchronization signal blocks do not send system information blocks.

[0161] In practice, network devices can send a second indication message to terminal devices. This second indication message can indicate the synchronization signal blocks associated with the system information block scheduling. Upon receiving the second indication message, the terminal device can determine which synchronization signal blocks in the cell are associated with the system information block scheduling, and which synchronization signal blocks in the cell are not associated with the system information block scheduling.

[0162] Network devices can carry second indication information through the MIB and send the MIB to terminal devices. Based on the received MIB, the terminal device can obtain the second indication information from it, and then determine the synchronization signal blocks that are associated with the system information block scheduling and the synchronization signal blocks that are not associated with the system information block scheduling.

[0163] In some embodiments, the second indication information may include a bit map, where each bit in the bit map is associated with a synchronization signal block within the cell. By analyzing the value of each bit in the bit map, it can be determined whether the corresponding synchronization signal block is a synchronization signal block scheduled by the associated system information block.

[0164] Specifically, if the j-th bit in the bit diagram takes the first value, it indicates that synchronization signal block j (SSB j) is a synchronization signal block scheduled with associated system information blocks; if the j-th bit in the bit diagram takes the second value, it indicates that synchronization signal block j is a synchronization signal block not scheduled with associated system information blocks. The first and second values ​​mentioned above are not equal, j is a positive integer and 0≤j≤N-1, where N is the total number of synchronization signal blocks actually transmitted in a single cell.

[0165] For example, the total number of synchronization signal blocks actually transmitted within the cell is N=16, namely synchronization signal block 0, synchronization signal block 1, ..., synchronization signal block 15. Correspondingly, the bit map includes 16 bits, namely bit 0, bit 1, ..., bit 15. The value of bit 0 indicates whether synchronization signal block 0 is a synchronization signal block scheduled by the associated system information block, the value of bit 1 indicates whether synchronization signal block 1 is a synchronization signal block scheduled by the associated system information block, and so on, with the value of bit 15 indicating whether synchronization signal block 15 is a synchronization signal block scheduled by the associated system information block.

[0166] If bit 0 is 1, it indicates that synchronization signal block 0 is a synchronization signal block scheduled by the associated system information block; if bit 0 is 0, it indicates that synchronization signal block 0 is a synchronization signal block not scheduled by the associated system information block.

[0167] Alternatively, if bit 0 is 0, it indicates that synchronization block 0 is a synchronization block scheduled by the associated system information block; if bit 0 is 1, it indicates that synchronization block 0 is a synchronization block not scheduled by the associated system information block.

[0168] In other embodiments, the second indication information may indicate the number K of synchronization signal blocks scheduled by the associated system information block. The terminal device determines that synchronization signal block i (SSB i) is a synchronization signal block scheduled by the associated system information block, where i is a positive integer and 0 ≤ i ≤ K-1.

[0169] For example, the total number of synchronization signal blocks actually transmitted within the cell is N=16, and the second indication information indicates that the number of synchronization signal blocks scheduled by the associated system information block is K=8. The terminal device determines that synchronization signal blocks 0 to 7 are synchronization signal blocks scheduled by the associated system information block, and determines that synchronization signal blocks 8 to 15 are synchronization signal blocks not scheduled by the associated system information block.

[0170] In some other embodiments, the second indication information may indicate the number K of synchronization signal blocks not associated with system information block scheduling. The terminal device determines that synchronization signal block i (SSB i) is a synchronization signal block associated with system information block scheduling, where i is a positive integer and 0≤i≤NX-1, and N is the total number of synchronization signal blocks actually transmitted in a single cell.

[0171] For example, the total number of synchronization signal blocks actually sent within the cell is N=16, and the second indication information indicates the number of synchronization signal blocks not associated with system information block scheduling is X=8. The terminal device determines that synchronization signal blocks 0 to 7 are synchronization signal blocks associated with system information block scheduling, and determines that synchronization signal blocks 8 to 15 are synchronization signal blocks not associated with system information block scheduling.

[0172] In practical implementation, after determining the synchronization signal block of the associated system information block scheduling, the terminal device can also determine the time slot of the PDCCH listening time corresponding to the synchronization signal block of the associated system information block scheduling, and receive the system information block scheduling information at the corresponding PDCCH listening time.

[0173] In some embodiments, the time slot n0 corresponding to the PDCCH monitoring opportunity of the associated system information block scheduling synchronization signal block i is: in, This refers to the total number of time slots in a radio frame when μ is the subcarrier spacing parameter, and O and M are the PDCCH listening timing configuration parameters. This is for calculating the floor function of i·M. The specific physical meaning and range of values ​​of each parameter in the above formula can be found in existing communication protocols, and will not be elaborated here.

[0174] As described above, once the terminal has determined the synchronization signal block scheduled by the associated system information block, it can correspondingly determine the synchronization signal blocks not scheduled by the associated system information block. The terminal device can associate the uplink wake-up signal resource with the synchronization signal block not scheduled by the associated system information block. In other words, the uplink wake-up signal resource only needs to be mapped with the synchronization signal block not scheduled by the associated system information block.

[0175] For example, the synchronization signal blocks not associated with system information block scheduling are synchronization signal blocks 8 to 15. The terminal device maps uplink wake-up signal resources 0 to 7 to synchronization signal blocks 8 to 15, uplink wake-up signal resource 0 to synchronization signal block 8, uplink wake-up signal resource 1 to synchronization signal block 9, and so on, with uplink wake-up signal resource 7 mapped to synchronization signal block 15. If the terminal device determines that the target synchronization signal block is synchronization signal block 9, then the terminal device uses uplink wake-up signal resource 1 to send an uplink wake-up signal to the network device.

[0176] Reference Figure 4 The present invention provides a flowchart of another communication method in an embodiment of the invention, and the following detailed steps will be described in detail.

[0177] In specific implementation, the communication methods provided in steps 401 to 402 below can be executed by a chip with data processing capabilities (such as a baseband chip), or by a chip module with data processing capabilities (such as a baseband chip module), or by the terminal device itself. The following explanation uses the terminal device executing the communication methods provided in steps 401 to 402 as an example.

[0178] Step 401: Receive the second instruction information.

[0179] Step 402: Based on the second indication information, determine the synchronization signal block scheduled by the associated system information block and / or the synchronization signal block scheduled by the unassociated system information block.

[0180] In practice, a cell can include multiple wavelengths, and each wavelength can correspond to a synchronization signal block.

[0181] In this embodiment of the invention, in order to achieve flexible transmission of system information blocks, the network device can send system information blocks on demand according to the waveform / synchronization signal block level. That is, the network device can send system information blocks at fixed waveforms and send system information blocks on demand at other waveforms.

[0182] For example, a cell may consist of 16 wavelengths, of which 8 wavelengths transmit system information blocks and the remaining 8 wavelengths transmit system information blocks as needed.

[0183] For bits that transmit system information blocks, it is necessary to associate them with Type 0 common physical downlink control channel (PDCCH) listening timing. For bits that do not transmit system information blocks, it is not necessary to associate them with Type 0 common PDCCH listening timing.

[0184] In practice, the terminal equipment needs to determine which waveform / synchronization signal blocks send system information blocks and which waveform / synchronization signal blocks do not send system information blocks.

[0185] In practice, network devices can send second indication information to terminal devices. This second indication information can indicate synchronization signal blocks associated with system information block scheduling and / or synchronization signal blocks not associated with system information block scheduling. Upon receiving the second indication information, the terminal device can determine which synchronization signal blocks within the cell are associated with system information block scheduling and which are not associated with system information block scheduling.

[0186] Network devices can carry second indication information through the MIB and send the MIB to terminal devices. Based on the received MIB, the terminal device can obtain the second indication information from it, and then determine the synchronization signal blocks that are associated with the system information block scheduling and the synchronization signal blocks that are not associated with the system information block scheduling.

[0187] In some embodiments, the second indication information may include a bit map, where each bit in the bit map is associated with a synchronization signal block within the cell. By analyzing the value of each bit in the bit map, it can be determined whether the corresponding synchronization signal block is a synchronization signal block scheduled by the associated system information block.

[0188] Specifically, if the j-th bit in the bit diagram takes the first value, it indicates that synchronization signal block j (SSB j) is a synchronization signal block scheduled with associated system information blocks; if the j-th bit in the bit diagram takes the second value, it indicates that synchronization signal block j is a synchronization signal block not scheduled with associated system information blocks. The first and second values ​​mentioned above are not equal, j is a positive integer and 0≤j≤N-1, where N is the total number of synchronization signal blocks actually transmitted in a single cell.

[0189] For example, the total number of synchronization signal blocks actually transmitted within the cell is N=16, namely synchronization signal block 0, synchronization signal block 1, ..., synchronization signal block 15. Correspondingly, the bit map includes 16 bits, namely bit 0, bit 1, ..., bit 15. The value of bit 0 indicates whether synchronization signal block 0 is a synchronization signal block scheduled by the associated system information block, the value of bit 1 indicates whether synchronization signal block 1 is a synchronization signal block scheduled by the associated system information block, and so on, with the value of bit 15 indicating whether synchronization signal block 15 is a synchronization signal block scheduled by the associated system information block.

[0190] If bit 0 is 1, it indicates that synchronization signal block 0 is a synchronization signal block scheduled by the associated system information block; if bit 0 is 0, it indicates that synchronization signal block 0 is a synchronization signal block not scheduled by the associated system information block.

[0191] Alternatively, if bit 0 is 0, it indicates that synchronization block 0 is a synchronization block scheduled by the associated system information block; if bit 0 is 1, it indicates that synchronization block 0 is a synchronization block not scheduled by the associated system information block.

[0192] In other embodiments, the second indication information may indicate the number K of synchronization signal blocks scheduled by the associated system information block. The terminal device determines that synchronization signal block i (SSB i) is a synchronization signal block scheduled by the associated system information block, where i is a positive integer and 0 ≤ i ≤ K-1.

[0193] For example, the total number of synchronization signal blocks actually transmitted within the cell is N=16, and the second indication information indicates that the number of synchronization signal blocks scheduled by the associated system information block is K=8. The terminal device determines that synchronization signal blocks 0 to 7 are synchronization signal blocks scheduled by the associated system information block, and determines that synchronization signal blocks 8 to 15 are synchronization signal blocks not scheduled by the associated system information block.

[0194] In some other embodiments, the second indication information may indicate the number K of synchronization signal blocks not associated with system information block scheduling. The terminal device determines that synchronization signal block i (SSB i) is a synchronization signal block associated with system information block scheduling, where i is a positive integer and 0≤i≤NX-1, and N is the total number of synchronization signal blocks actually transmitted in a single cell.

[0195] For example, the total number of synchronization signal blocks actually sent within the cell is N=16, and the second indication information indicates the number of synchronization signal blocks not associated with system information block scheduling is X=8. The terminal device determines that synchronization signal blocks 0 to 7 are synchronization signal blocks associated with system information block scheduling, and determines that synchronization signal blocks 8 to 15 are synchronization signal blocks not associated with system information block scheduling.

[0196] In practical implementation, after determining the synchronization signal block of the associated system information block scheduling, the terminal device can also determine the time slot of the PDCCH listening time corresponding to the synchronization signal block of the associated system information block scheduling, and receive the system information block scheduling information at the corresponding PDCCH listening time.

[0197] In some embodiments, the time slot n0 corresponding to the PDCCH monitoring opportunity of the associated system information block scheduling synchronization signal block i is: in, This refers to the total number of time slots in a radio frame when μ is the subcarrier spacing parameter, and O and M are the PDCCH listening timing configuration parameters. To calculate the floor function of i·M.

[0198] As described above, once the terminal has determined the synchronization signal block scheduled by the associated system information block, it can correspondingly determine the synchronization signal blocks not scheduled by the associated system information block. The terminal device can associate the uplink wake-up signal resource with the synchronization signal block not scheduled by the associated system information block. In other words, the uplink wake-up signal resource only needs to be mapped with the synchronization signal block not scheduled by the associated system information block.

[0199] For example, the synchronization signal blocks not associated with system information block scheduling are synchronization signal blocks 8 to 15. The terminal device maps uplink wake-up signal resources 0 to 7 to synchronization signal blocks 8 to 15, uplink wake-up signal resource 0 to synchronization signal block 8, uplink wake-up signal resource 1 to synchronization signal block 9, and so on, with uplink wake-up signal resource 7 mapped to synchronization signal block 15. If the terminal device determines that the target synchronization signal block is synchronization signal block 9, then the terminal device uses uplink wake-up signal resource 1 to send an uplink wake-up signal to the network device.

[0200] In summary, the network device sends a second instruction to the terminal device, which can then determine the synchronization signal block that is associated with the system information block scheduling and the synchronization signal block that is not associated with the system information block scheduling based on the second instruction.

[0201] Furthermore, the terminal device can determine the time slot of the PDCCH listening opportunity corresponding to the synchronization signal block of the associated system information block based on the synchronization signal block of the associated system information block scheduling, and receive the scheduling information of the system information block in the determined time slot of the PDCCH listening opportunity.

[0202] In addition, the terminal device can associate the uplink wake-up signal resource with the synchronization signal block of the unassociated system information block scheduling, and use the uplink wake-up signal resource associated with the synchronization signal block of the unassociated system information block scheduling to send the uplink wake-up signal to the network device.

[0203] Reference Figure 5 The present invention provides a flowchart of another communication method in an embodiment of the present invention.

[0204] In practical implementation, the communication methods provided in steps 501 to 502 below can be executed by a chip with data processing capabilities in the network device, or by a chip module with data processing capabilities in the network device, or by the network device itself. The following explanation uses the execution of the communication methods provided in steps 501 to 502 by the network device as an example.

[0205] Step 501: Send the first instruction message.

[0206] Step 502: In response to receiving the uplink wake-up signal, transmit the system information block.

[0207] In practice, steps 501 to 502 can correspond to the descriptions of network devices in steps 101 to 102, which will not be elaborated here.

[0208] Reference Figure 6 This invention provides another communication method in an embodiment of the invention, which will be described in detail below.

[0209] In practical implementation, the communication methods provided in steps 601 to 602 below can be executed by a chip with data processing capabilities in the network device, or by a chip module with data processing capabilities in the network device, or by the network device itself. The following explanation uses the execution of the communication methods provided in steps 601 to 602 by the network device as an example.

[0210] Step 601: Determine the second instruction information.

[0211] Step 602: Send the second instruction message.

[0212] In practice, the second indication information can indicate the synchronization signal block scheduled by the associated system information block and / or the synchronization signal block scheduled by the unassociated system information block.

[0213] In specific implementation, the specific form of the second instruction information and the operation performed by the terminal device after receiving the second instruction information can be referred to the relevant descriptions in steps 401 to 402, which will not be repeated here.

[0214] Reference Figure 7 The present invention provides a communication device 70 according to an embodiment of the invention, comprising: an acquisition unit 701 and a determination unit 702, wherein:

[0215] The acquisition unit 701 is used to acquire first indication information, the first indication information indicating at least one of the following: time domain resource configuration parameters corresponding to the uplink wake-up signal, frequency domain resource configuration parameters corresponding to the uplink wake-up signal, and uplink timing advance for sending the uplink wake-up signal;

[0216] The determining unit 702 is used to determine whether to send the uplink wake-up signal based on the first indication information. The uplink wake-up signal is used to trigger the transmission of system information blocks.

[0217] In specific implementation, the specific execution process of the above-mentioned acquisition unit 701 and determination unit 702 can be referred to steps 101 to 102, which will not be elaborated here.

[0218] In specific implementations, the aforementioned communication device 70 may correspond to a chip with data processing function in a terminal device, or to a chip module with data processing function in a terminal device, or to a terminal device.

[0219] Reference Figure 8 Another communication device 80 according to an embodiment of the present invention is provided, comprising: an acquisition unit 801 and a determination unit 802, wherein:

[0220] Acquisition unit 801 is used to receive second indication information;

[0221] The determining unit 802 is used to determine, based on the second indication information, the synchronization signal blocks scheduled by the associated system information blocks and / or the synchronization signal blocks scheduled by the unassociated system information blocks.

[0222] In specific implementation, the specific execution process of the above-mentioned acquisition unit 801 and determination unit 802 can be referred to steps 401 to 402, which will not be elaborated here.

[0223] In specific implementation, the aforementioned communication device 80 may correspond to a chip with data processing function in a terminal device, or to a chip module with data processing function in a terminal device, or to a terminal device.

[0224] Reference Figure 9The present invention provides another communication device 90 according to an embodiment of the invention, comprising: a transmitting unit 901 and a processing unit 902, wherein:

[0225] The sending unit 901 is used to send first indication information, the first indication information indicating at least one of the following: time domain resource configuration parameters corresponding to the uplink wake-up signal, and uplink timing advance corresponding to the uplink wake-up signal;

[0226] The processing unit 902 is used to send a system information block in response to receiving an uplink wake-up signal.

[0227] In specific implementation, the specific execution process of the above-mentioned sending unit 901 and processing unit 902 can be referred to steps 501 to 502, which will not be elaborated here.

[0228] In specific implementation, the aforementioned communication device 90 may correspond to a chip with data processing function in a network device, or to a chip module with data processing function in a network device, or to a network device.

[0229] Reference Figure 10 Another communication device 10 according to an embodiment of the present invention is provided, comprising: a determining unit 101 and a transmitting unit 102, wherein:

[0230] The determining unit 101 is used to determine the second indication information.

[0231] The sending unit 102 is used to send second indication information, which indicates the synchronization signal block scheduled by the associated system information block and / or the synchronization signal block not scheduled by the associated system information block.

[0232] In specific implementation, the specific execution process of the above-mentioned determining unit 101 and sending unit 102 can be referred to steps 601 to 602, which will not be elaborated here.

[0233] In specific implementations, the aforementioned communication device 100 may correspond to a chip with data processing function in a network device, or to a chip module with data processing function in a network device, or to a network device.

[0234] In specific implementation, the modules / units included in the various devices and products described in the above embodiments can be software modules / units, hardware modules / units, or a combination of both.

[0235] For example, for various devices and products applied to or integrated into a chip, each module / unit can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, each module / unit can be implemented using hardware methods such as circuits, and different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The components can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, each of its components / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0236] This invention also provides a computer-readable storage medium, which is a non-volatile or non-transient storage medium, storing a computer program thereon. When the computer program is run by a processor, it executes the steps of the communication method provided in any of the above embodiments.

[0237] This invention also provides another communication device, including a memory and a processor, wherein the memory stores a computer program that can run on the processor, and the processor executes the steps of the communication method provided in any of the above embodiments when running the computer program.

[0238] This invention also provides a computer program product, including a computer program / instructions, which, when executed by a processor, implement the steps of the communication method provided in any of the above embodiments.

[0239] Figure 11 This is a schematic diagram of another communication device provided in an embodiment of the present invention.

[0240] Specifically, refer to Figure 11The communication device may include a processor 111, coupled to a memory 112, which may be located within or outside the communication device. Optionally, the communication device may also include a transceiver 113. The memory 112, processor 111, and transceiver 113 may be connected via a communication bus. The memory 112 stores a computer program that can run on the processor 111. When the processor 111 runs the computer program, it executes the steps in the communication transmission method provided in any of the above embodiments. The transceiver 113 may perform the sending and / or receiving actions described above under the control of the processor 111. This communication device may be either the aforementioned terminal device or the aforementioned network device.

[0241] In this embodiment, the memory 112 includes non-volatile or non-transitory memory, and may also include optical disks, hard disks, solid-state drives, etc.

[0242] In this embodiment, the processor 111 can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0243] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include ROM, RAM, disk, or optical disk, etc.

[0244] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A communication method, characterized in that, include: Obtain first indication information, which indicates at least one of the following: time-domain resource configuration parameters corresponding to the uplink wake-up signal; frequency-domain resource configuration parameters corresponding to the uplink wake-up signal; and uplink timing advance for sending the uplink wake-up signal. Based on the first indication information, it is determined whether to send the uplink wake-up signal, which is used to trigger the transmission of system information blocks.

2. The communication method as described in claim 1, characterized in that, The first indication information is carried by the main system information block in the target synchronization signal block, which is one of the synchronization signal blocks that meet the signal quality strength condition.

3. The communication method as described in claim 1, characterized in that, The time-domain resource configuration parameters corresponding to the uplink wake-up signal include: index information of the set of time-domain resource configuration parameters for the uplink wake-up signal.

4. The communication method as described in claim 3, characterized in that, The first indication information includes an uplink wake-up signal time domain resource indication field, which carries the index information of the uplink wake-up signal time domain resource configuration parameter set.

5. The communication method as described in claim 4, characterized in that, The set of time-domain resource configuration parameters includes at least one of the following: the time-domain starting system frame number of the uplink wake-up signal resource, the time-domain starting timeslot number of the uplink wake-up signal resource, the time-domain starting symbol identifier of the uplink wake-up signal resource, the number of uplink wake-up signal resources contained in each timeslot, the number of interval symbols between two adjacent uplink wake-up signal resources in the time domain, the number of symbols occupied by a single uplink wake-up signal resource in the time domain, and the period of the uplink wake-up signal resource.

6. The communication method as described in claim 1, characterized in that, The time-domain resource configuration parameters corresponding to the uplink wake-up signal include a time-domain offset, which is the time interval between the time-domain start position of the uplink wake-up signal resource and the time-domain position associated with the target synchronization signal block; the target synchronization signal block is one of all synchronization signal blocks that meet the signal quality strength condition.

7. The communication method as described in claim 6, characterized in that, The time-domain location associated with the target synchronization signal block includes any of the following: the time-domain end position of the half-frame in which the target synchronization signal block is located, the time-domain start position of the half-frame in which the target synchronization signal block is located, the time slot in which the last synchronization signal block in the synchronization signal block burst in which the target synchronization signal is located, and the time slot in which the first synchronization signal block in the synchronization signal block burst in which the target synchronization signal is located.

8. The communication method as described in claim 6, characterized in that, The uplink timing advance for sending the uplink wake-up signal is determined based on the time domain offset.

9. The communication method as described in claim 8, characterized in that, The duration corresponding to the uplink timing advance of sending the uplink wake-up signal is equal to the duration corresponding to the time domain offset.

10. The communication method as described in claim 6, characterized in that, The first indication information also includes an uplink wake-up signal time domain offset indication field; when the uplink wake-up signal time domain offset indication field takes a first value, it indicates that no uplink wake-up signal needs to be sent; when the uplink wake-up signal time domain offset indication field takes a second value, it indicates that the target synchronization signal block is not associated with uplink wake-up signal resources; when the uplink wake-up signal time domain offset indication field takes a third value, it indicates the time domain offset; the first value, the second value, and the third value are all different.

11. The communication method according to any one of claims 2 to 10, characterized in that, Sending the uplink wake-up signal based on the first indication information includes: The uplink wake-up signal is sent using the uplink wake-up signal resource associated with the target synchronization signal block.

12. The communication method as described in claim 1, characterized in that, Also includes: Receive second indication information, which is used to determine the synchronization signal block scheduled by the associated system information block and / or the synchronization signal block not scheduled by the associated system information block.

13. The communication method as described in claim 12, characterized in that, The second indication information includes a bit map, where each bit in the bit map is associated with a synchronization signal block (SSB); the j-th bit of the bit map takes a first value, indicating that SSB j is a synchronization signal block associated with a system information block scheduling; the j-th bit of the bit map takes a second value, indicating that SSB j is a synchronization signal block not associated with a system information block scheduling; j is a positive integer and 0≤j≤N-1, where N is the total number of SSBs actually transmitted in a single cell.

14. The communication method as described in claim 12, characterized in that, The second indication information indicates the number K of the synchronization signal blocks scheduled by the associated system information block; SSBi is the synchronization signal block scheduled by the associated system information block, i is a positive integer and 0≤i≤K-1.

15. The communication method as described in claim 12, characterized in that, The second indication information indicates the number X of synchronization signal blocks not associated with the system information block scheduling; SSBi is the synchronization signal block associated with the system information block scheduling, i is a positive integer and 0≤i≤NX-1, and N is the total number of synchronization signal blocks actually sent in a single cell.

16. The communication method according to any one of claims 13 to 15, characterized in that, Also includes: The time slot of the Physical Downlink Control Channel (PDCCH) monitoring time corresponding to the synchronization signal block of the associated system information block scheduling is determined, and the PDCCH monitoring time is used to receive system information block scheduling information.

17. The communication method as described in claim 16, characterized in that, The time slot n0 corresponding to the PDCCH monitoring opportunity of the synchronization signal block scheduled by the i-th associated system information block is: This refers to the total number of time slots in a radio frame when μ is the subcarrier spacing parameter, and O and M are the PDCCH listening timing configuration parameters. To calculate the floor function of i·M.

18. The communication method as described in claim 12, characterized in that, The uplink wake-up signal resource that sends the uplink wake-up signal is associated with the synchronization signal block that is not associated with the system signal block scheduling.

19. A communication method, characterized in that, include: Receive second indication information, which is used to determine the synchronization signal block scheduled by the associated system information block and / or the synchronization signal block not scheduled by the associated system information block.

20. The communication method as described in claim 19, characterized in that, The second indication information includes a bit map, where each bit in the bit map is associated with a synchronization signal block (SSB); the j-th bit of the bit map takes a first value, indicating that SSB j is a synchronization signal block associated with a system information block scheduling; the j-th bit of the bit map takes a second value, indicating that SSB j is a synchronization signal block not associated with a system information block scheduling; j is a positive integer and 0≤j≤N-1, where N is the total number of SSBs actually transmitted in a single cell.

21. The communication method as described in claim 19, characterized in that, The second indication information indicates the number K of the synchronization signal blocks scheduled by the associated system information block; SSBi is the synchronization signal block scheduled by the associated system information block, i is a positive integer and 0≤i≤K-1.

22. The communication method as described in claim 19, characterized in that, The second indication information indicates the number X of synchronization signal blocks not associated with the system information block scheduling; SSBi is the synchronization signal block associated with the system information block scheduling, i is a positive integer and 0≤i≤NX-1, and N is the total number of synchronization signal blocks actually sent in a single cell.

23. The communication method according to any one of claims 20 to 22, characterized in that, Also includes: The time slot of the Physical Downlink Control Channel (PDCCH) monitoring time corresponding to the synchronization signal block of the associated system information block scheduling is determined, and the PDCCH monitoring time is used to receive system information block scheduling information.

24. The communication method as described in claim 23, characterized in that, The time slot n0 corresponding to the PDCCH monitoring opportunity of the synchronization signal block scheduled by the i-th associated system information block is: This refers to the total number of time slots in a radio frame when μ is the subcarrier spacing parameter, and O and M are the PDCCH listening timing configuration parameters. To calculate the floor function of i·M.

25. The communication method as described in claim 19, characterized in that, Also includes: The synchronization signal block scheduled by the unassociated system signal block is associated with the uplink wake-up signal resource.

26. A communication method, characterized in that, include: Send a first indication message, the first indication message indicating at least one of the following: time domain resource configuration parameters corresponding to the uplink wake-up signal, frequency domain resource configuration parameters corresponding to the uplink wake-up signal, and uplink timing advance for sending the uplink wake-up signal; In response to receiving an uplink wake-up signal, transmit system information blocks.

27. A communication method, characterized in that, include: Send a second indication message, which indicates a synchronization signal block scheduled by an associated system information block and / or a synchronization signal block not scheduled by an associated system information block.

28. A computer-readable storage medium, said computer-readable storage medium being a non-volatile storage medium or a non-transient storage medium, having stored thereon a computer program, characterized in that, When the computer program is run by the processor, it performs the steps of the communication method according to any one of claims 1 to 25; or, when the computer program is run by the processor, it performs the steps of the communication method according to claim 26 or 27.

29. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the communication method according to any one of claims 1 to 25; or, when the computer program / instructions are executed by the processor, they implement the steps of the communication method according to claim 26 or 27.

30. A communication device comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, characterized in that, When the processor runs the computer program, it performs the steps of the communication method according to any one of claims 1 to 25; or, when the processor runs the computer program, it performs the steps of the communication method according to claim 26 or 27.

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