Communication method, terminal device and network device

Description

COMMUNICATION METHOD, TERMINAL DEVICE AND NETWORK DEVICE

[0001] This application claims priority from Chinese Patent Application No. 202310436835.0, filed with the National Intellectual Property Administration of China on April 20, 2023, and entitled "COMMUNICATION METHOD," and Chinese Patent Application No. 202310499290.8, filed with the National Intellectual Property Administration of China on May 5, 2023, and entitled "COMMUNICATION METHOD, TERMINAL DEVICE, AND NETWORK DEVICE," both incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] This application relates to the field of wireless communication and, in particular, to a communication method, a terminal device and a network device. BACKGROUND

[0003] In a wireless communication system, a terminal device may operate on a wake-up radio link (WUR) to monitor a low-power wake-up signal (LP-WUS) and, after detecting the LP-WUS, switch to a main link to operate in order to reduce power consumption.

[0004] However, when an LP-WUS is implanted in a portion of the cells, a terminal device may not be able to use the LP-WUS to save energy. SUMMARY

[0005] To solve the aforementioned technical problem, the present application provides a communication method, a terminal device, and a network device that, when a low-power activation signal (LP-WUS) is deployed in a portion of the cells, allows the terminal device to utilize the LP-WUS to save energy. Petition 870250109410, dated 11 / 28 / 2025, page 5 / 105 2 / 83 energy. To achieve the aforementioned objective, this application utilizes the following technical solutions.

[0006] According to a first aspect, a communication method is provided. The method can be implemented by a first terminal device or it can be implemented by a chip of the first terminal device. The first terminal device is in a radio resource control (RRC) non-connected state. The following is an example in which the method is implemented by the first terminal device for descriptive purposes.The method includes: The first terminal device receives, in a first cell, a first downlink signal from a first network device, where the first cell corresponds to a first frequency position; and the first terminal device determines first indication information based on the first downlink signal, where the first indication information indicates a second frequency position, an LP-WUS is configured in a cell corresponding to the second frequency position, and the second frequency position is different from the first frequency position.

[0007] In other words, the first terminal device determines the first indication information based on the first downlink signal received. Since the first indication information indicates a frequency position corresponding to a cell in which an LP-WUS is configured, after performing a cell search, even if no LP-WUS is configured in the first cell where the first terminal device is located, the first terminal device can discover the cell in which the LP-WUS is deployed, helping the first terminal device to utilize the LP-WUS to save power.

[0008] In a possible project, the method also includes: The first Petition 870250109410, dated 11 / 28 / 2025, page 6 / 105 3 / 83 The terminal device performs a cell search based on the second frequency position and settles on a second cell, where the cell corresponding to the second frequency position includes the second cell; and the first terminal device monitors the LP-WUS on the second cell.

[0009] In other words, the first terminal device connects to the second cell based on the second frequency position indicated by the first indication information, to use the LPWUS sent by the second cell and save energy.

[0010] In a possible project, the LP-WUS is not configured in the first cell.

[0011] In a possible project, the method also includes: The first terminal device accesses a third cell under a first condition. The third cell corresponds to a third frequency position, and the first condition includes at least one of the following:

[0012] Condition 1: The first terminal device corresponds to the third frequency position.

[0013] Condition 2: The first terminal device receives second indication information from a second network device, where the second indication information indicates that the frequency position at which the first terminal device initiates access is the third frequency position.

[0014] The third cell is the same as or different from the cell to which the first terminal device is currently connected.

[0015] For example, when the cell to which the first terminal device is currently connected is the first cell, the third cell may be the first cell or it may be different from the first cell. Furthermore, when the third cell is the first cell, the second network device in Condition 2 is the same as the first network device. Petition 870250109410, dated 11 / 28 / 2025, page 7 / 105 4 / 83

[0016] For example, when the cell to which the first terminal device is currently connected is the second cell, the third cell may be the second cell or it may be different from the second cell. Furthermore, when the third cell is the second cell, the second network device in Condition 2 is the same as the first network device, i.e., a downlink signal from the first cell and a downlink signal from the second cell are sent by the same network device. Alternatively, the second network device in Condition 2 is different from the first network device, i.e., a downlink signal from the first cell and a downlink signal from the second cell are sent by different network devices.

[0017] An LP-WUS can be configured in the third cell, or no LP-WUS can be configured in the third cell.

[0018] For example, when the third cell is the first cell, if an LP-WUS is configured in the first cell, the third cell will be a cell in which an LP-WUS is configured. If no LP-WUS is configured in the first cell, the third cell will be a cell in which no LP-WUS is configured. When the third cell is different from the first cell, the third cell may be a cell in which an LP-WUS is configured or it may be a cell in which no LP-WUS is configured.

[0019] For example, when the third cell is the second cell, the third cell is a cell in which an LP-WUS is configured. When the third cell is different from the second cell, the third cell may be a cell in which an LP-WUS is configured or it may be a cell in which no LP-WUS is configured.

[0020] In other words, the first terminal device can determine the third frequency position under the first condition and, based on that position, decide to access the third cell. This way Petition 870250109410, dated 11 / 28 / 2025, page 8 / 105 5 / 83 mA, the third cell is the one to which the first terminal device is currently connected, or it may be different from the cell to which the first terminal device is currently connected, helping to reduce congestion that can occur when a large number of terminal devices connect to the same cell and initiate access within the same cell.

[0021] In a possible project, the first terminal device that corresponds to the third frequency position is determined based on the following two items: an identifier for the first terminal device and a sequence of the third frequency position in N frequency positions. The N frequency positions correspond to the cells that can be accessed by the first terminal device, and N is a positive integer.

[0022] In this way, the first terminal device can also determine a frequency position among the N frequency positions, such as the third frequency position, based on the identifier of the first terminal device.

[0023] In a possible project, the first terminal device corresponding to the third frequency position is determined based on the following three items: an identifier for the first terminal device, a sequence of the third frequency position in N frequency positions, and a first variable. The N frequency positions correspond to the cells that can be accessed by the first terminal device, where N is a positive integer. The first variable is related to time information. For example, the first terminal device detects a frame index value, a slot index value, a symbol index value, and so on, in an LP-WUS.

[0024] In this way, the first terminal device can use different initial variables at different times and, consequently Petition 870250109410, dated 11 / 28 / 2025, page 9 / 105 6 / 83 te, the position of the third determined frequency also changes.

[0025] For example, initially, the third frequency position is the same as the frequency position of the cell to which the first terminal device is currently connected. The first terminal device can initiate access without performing a new cell selection. This further reduces access delay.

[0026] For example, at a later stage, the third frequency position is different from the frequency position of the cell to which the first terminal device is currently connected. The first terminal device performs a new cell selection and then initiates access. In this way, the congestion of access resources caused by the large number of terminal devices initiating access to the same cell is avoided to some extent.

[0027] In a possible project, the second indication information is ported in an LP-WUS.

[0028] For example, when an LP-WUS is configured in the first cell, and the cell to which the first terminal device is currently connected is the first cell, the second indication information is carried in the LP-WUS sent by the first network device in the first cell.

[0029] For example, when an LP-WUS is configured in the second cell, and the cell to which the first terminal device is currently connected is the second cell, the second indication information is carried in the LP-WUS sent by the second network device in the second cell.

[0030] In a possible project, the method also includes: The first terminal device receives third-party indication information from a second network device; and the first terminal device accesses a third cell based on the third-party indication information.

[0031] The third indication information indicates a second Petition 870250109410, dated 11 / 28 / 2025, page 10 / 105 7 / 83 of the condition, the second condition is a condition in which a terminal device accesses a current cell, and the current cell is the cell in which the third indication information is sent.

[0032] When the first terminal device meets the second condition, the third cell is the same as the current cell. When the first terminal device does not meet the second condition, the third cell is different from the current cell.

[0033] The second network device can be the same as or different from the first.

[0034] For example, when the current cell is the first cell, the second network device is the same as the first network device.

[0035] For example, when the current cell is the second cell, the second network device is the same as the first network device, i.e., a downlink signal from the first cell and a downlink signal from the second cell are sent by the same network device. Alternatively, the second network device is different from the first network device, i.e., a downlink signal from the first cell and a downlink signal from the second cell are sent by different network devices.

[0036] In other words, the first terminal device determines, based on the second condition indicated by the third piece of information, whether to access the third cell. When the first terminal device meets the second condition, the third cell is the current cell in which the first terminal device is allocated. When the first terminal device does not meet the second condition, the third cell is different from the current cell in which the first terminal device is allocated. This helps reduce congestion that can be generated when a large number of terminal devices are allocated to the same cell and initiate access from the same cell. Petition 870250109410, dated 11 / 28 / 2025, page 11 / 105 8 / 83 cell.

[0037] In a possible project, the method also includes: The first terminal device receives fourth indication information from a second network device, where the fourth indication information indicates N frequency positions, the N frequency positions correspond to cells that can be accessed by the first terminal device, and N is a positive integer.

[0038] The second network device can be the same as or different from the first network device.

[0039] For example, when the cell to which the first terminal device is currently connected is the first cell, the second network device is the same as the first network device.

[0040] For example, when the cell to which the first terminal device is currently connected is the second cell, the second network device is the same as the first network device, i.e., a downlink signal from the first cell and a downlink signal from the second cell are sent by the same network device. Alternatively, the second network device is different from the first network device, i.e., a downlink signal from the first cell and a downlink signal from the second cell are sent by different network devices.

[0041] In other words, a large number of terminal devices can connect and initiate access in a cell where an LP-WUS is configured. Therefore, the second network device sends the fourth indication information to the first terminal device, indicating the N frequency positions to the first terminal device, so that the first terminal device can determine a frequency position among the N available positions to initiate access. The frequency position at which the first terminal device initiates access may be different from the frequency position in Petition 870250109410, dated 11 / 28 / 2025, page 12 / 105 9 / 83 which other terminal device in the same cell initiates access, that is, the probability of the frequency positions being different increases. In this case, the probability of an access conflict for the first terminal device is reduced, helping it to successfully access and reducing access delay.

[0042] In a possible project, the fourth indication information includes N absolute radio frequency channel numbers (ARFCNs), and the N ARFCNs are in one-to-one correspondence with the N frequency positions.

[0043] In a possible project, the first indication information includes an ARFCN, and the ARFCN corresponds to the second frequency position.

[0044] In a possible project, the initial indication information also indicates a fourth frequency position; an LPWUS is configured in a cell corresponding to the fourth frequency position, and this fourth position is different from the first and second. In other words, the initial indication information indicates the frequency position in which an LP-WUS is configured, and may indicate two or more frequency positions. This solution helps to further reduce the possibility of congestion caused by multiple terminal devices accessing the same cell.

[0045] According to a second aspect, a communication method is provided. The method can be implemented by a first terminal device or it can be implemented by a chip of the first terminal device. The first terminal device is in an RRC (Remotely Connected) state. An example is given below where the method is implemented by the first terminal device for descriptive purposes. The method includes: the first terminal device receives a second downlink signal from a second network device; and the first terminal device determines fourth information from Petition 870250109410, dated 11 / 28 / 2025, page 13 / 105 10 / 83 indication based on the second downlink signal, where the fourth indication information indicates N frequency positions, the N frequency positions correspond to cells that can be accessed by the first terminal device, and N is a positive integer.

[0046] In other words, a large number of terminal devices can connect and initiate access in a cell where an LP-WUS is configured. Therefore, the second network device sends the fourth indication information to the first terminal device, indicating the N frequency positions so that the first terminal device can determine a frequency position among the N available positions to initiate access. A frequency position at which the first terminal device initiates access may be different from the frequency position at which another terminal device in the same cell initiates access, i.e., the probability of the frequency positions being different increases. In this case, the probability of an access conflict for the first terminal device is reduced, helping the first terminal device to successfully access and reducing access delay.

[0047] In a possible project, the method also includes: The first terminal device accesses a third cell under a first condition. The third cell corresponds to a third frequency position, the third frequency position is one of the N frequency positions, and the first condition includes at least one of the following:

[0048] Condition 1: The first terminal device corresponds to the third frequency position.

[0049] Condition 2: The first terminal device receives second indication information from the second network device, where the second indication information indicates that the fre position Petition 870250109410, dated 11 / 28 / 2025, page 14 / 105 11 / 83 The frequency at which the first terminal device initiates access is the third frequency position.

[0050] In other words, the first terminal device can determine the third frequency position under the first condition and, based on that position, decide to access the third cell. Thus, the third cell is the one to which the first terminal device is currently connected, or the third cell is different from the cell to which the first terminal device is currently located to help reduce congestion that can occur when a large number of terminal devices connect to the same cell and initiate access to the same cell.

[0051] In a possible project, the first terminal device that corresponds to the third frequency position is determined based on the following two items: an identifier of the first terminal device and a sequence of the third frequency position in the N frequency positions.

[0052] In this way, the first terminal device can also determine a frequency position among the N frequency positions, such as the third frequency position, based on the identifier of the first terminal device.

[0053] In a possible project, the first terminal device corresponding to the third frequency position is determined based on the following three items: an identifier for the first terminal device, a sequence of the third frequency position in the N frequency positions, and a first variable. The first variable is related to timing information. For example, the first terminal device detects a frame index value, a slot index value, a symbol index value, and the like in an LP-WUS.

[0054] In this way, the first terminal device can use different initial variables at different times and, consequently Petition 870250109410, dated 11 / 28 / 2025, page 15 / 105 12 / 83 te, the position of the third determined frequency also changes.

[0055] For example, initially, the third frequency position is the same as the frequency position of the cell to which the first terminal device is currently connected. The first terminal device can initiate access without performing a new cell selection. This further reduces access delay.

[0056] For example, at a later stage, the third frequency position is different from the frequency position of the cell to which the first terminal device is currently connected. The first terminal device performs a new cell selection and then initiates access. In this way, the congestion of access resources caused by the large number of terminal devices initiating access to the same cell is avoided to some extent.

[0057] In a possible project, the second indication information is ported in an LP-WUS.

[0058] In a possible project, the method also includes: The first terminal device receives third-party indication information from the second network device; and the first terminal device accesses a third cell based on the third-party indication information.

[0059] The third indication information indicates a second condition, the second condition is a condition in which a terminal device accesses a current cell, and the current cell is the cell in which the third indication information is sent.

[0060] When the first terminal device meets the second condition, the third cell is the same as the current cell. When the first terminal device does not meet the second condition, the third cell is different from the current cell.

[0061] In other words, the first terminal device determines, based on the second condition indicated by the third indication information, whether to access the third cell. When the first Petition 870250109410, dated 11 / 28 / 2025, page 16 / 105 13 / 83 When the terminal device meets the second condition, the third cell is a current cell in which the first terminal device is allocated. When the first terminal device does not meet the second condition, the third cell is different from the current cell in which the first terminal device is allocated. This helps reduce congestion that can be generated when a large number of terminal devices are allocated to the same cell and initiate access from the same cell.

[0062] In a possible project, the fourth indication information includes N ARFCNs, and the N ARFCNs are in one-to-one correspondence with the N frequency positions.

[0063] According to a third aspect, a communication method is provided. The method can be implemented by a first terminal device or it can be implemented by a chip of the first terminal device. The first terminal device is in an RRC connected state. The following is an example where the method is implemented by the first terminal device for descriptive purposes. The method includes: The first terminal device determines a first frequency position; and the first terminal device monitors, at the first frequency position, an LP-WUS coming from a first network device.LP-WUS indicates that it is monitoring, on a first carrier, a physical downlink control channel (PDCCH) originating from a second network device, where the first frequency position is outside the frequency range of the first carrier, and the first network device is the same as or different from the second network device.

[0064] For example, the second network device that is the same as the first network device can be understood as the LP-WUS and the PDCCH being sent by the same network device.

[0065] Another example, the second network device that is different Petition 870250109410, dated 11 / 28 / 2025, page 17 / 105 14 / 83 from the first network device can be understood as the LPWUS and PDCCH being sent by different network devices.

[0066] In other words, when in the RRC connected state, the first terminal device monitors, on the first frequency, the LP-WUS signal of the first network device. The LP-WUS indicates monitoring, on the first carrier, the PDCCH signal of the second network device, and the first frequency is outside the frequency range of the first carrier. Therefore, the first terminal device can perform PDCCH signal monitoring on a corresponding carrier based on the LP-WUS when in the RRC connected state, to utilize the LP-WUS and save power.

[0067] In a possible design, the first frequency position is in a frequency band of a second carrier, and the second carrier is different from the first carrier. This can be replaced by the following description: The first terminal device monitors, on the second carrier, the LP-WUS of the first network device. The LP-WUS indicates monitoring, on the first carrier, the PDCCH of the second network device, to implement cross-carrier indication and avoid configuring the LP-WUS on each carrier, thus reducing the resource overhead of the LP-WUS.

[0068] In a possible project, LP-WUS also indicates monitoring, on the second carrier, a PDCCH coming from the first network device.

[0069] In other words, LP-WUS indicates monitoring, on the first carrier, the PDCCH of the second network device and also indicates monitoring, on the second carrier, the PDCCH of the first network device, to avoid configuring LP-WUS on each carrier, thus further reducing the resource overhead of LP-WUS.

[0070] In a possible project, the LP-WUS includes an identifier for the first terminal device. The LP-WUS indicates the first device. Petition 870250109410, dated 11 / 28 / 2025, page 18 / 105 15 / 83 vo terminal to perform PDCCH monitoring on the first carrier and the second carrier.

[0071] In other words, when the LP-WUS carries the identifier of the first terminal device, it indicates that it should monitor, on the first carrier, the PDCCH of the second network device and also indicates that it should monitor, on the second carrier, the PDCCH of the first network device, so that the first network device can control the first terminal device to perform PDCCH monitoring on the first carrier and on the second carrier, thus reducing signaling overhead.

[0072] In a possible project, the LP-WUS includes a fifth and a sixth indication of information. The fifth indication of information indicates the first terminal device to perform the monitoring. PDCCH is the first carrier, and the sixth indication piece of information indicates the first terminal device to perform monitoring. PDCCH in the second carrier.

[0073] In other words, when the LP-WUS loads the fifth indication information and the sixth indication information, the LPWUS can indicate, by using the fifth indication information, to perform PDCCH monitoring on the first carrier and can indicate, by using the sixth indication information, to perform PDCCH monitoring on the second carrier, so that the first network device can flexibly and efficiently control the first terminal device to perform PDCCH monitoring on a specific carrier (or on some carriers).

[0074] According to a fourth aspect, a communication method is provided. The method can be implemented by a first network device or it can be implemented by a chip of the first network device. The following is an example where the method is implemented by the first network device for descriptive purposes. The meth Petition 870250109410, dated 11 / 28 / 2025, page 19 / 105 16 / 83 includes: the first network device determines a first indication information, where the first indication information indicates a second frequency position, and an LP-WUS is configured in a cell corresponding to the second frequency position; and the first network device sends, in a first cell, a first downlink signal to a first terminal device, where the first cell corresponds to a first frequency position, the first frequency position is different from the second frequency position, the first terminal device is in an RRC unconnected state, and the first downlink signal includes the first indication information.

[0075] In a possible project, the method also includes: The first network device sends, in a second cell, the LP-WUS to the first terminal device, where the cell corresponding to the second frequency position includes the second cell.

[0076] In a possible project, the LP-WUS is not configured in the first cell.

[0077] In a possible project, the method also includes: The first network device determines, under a first condition, that the first terminal device accesses a third cell. The third cell corresponds to a third frequency position, and the first condition includes at least one of the following:

[0078] Condition 1: The first terminal device corresponds to the third frequency position.

[0079] Condition 2: The first network device sends second indication information to the first terminal device, where the second indication information indicates that the frequency position at which the first terminal device initiates access is the third frequency position.

[0080] In a possible project, the first terminal device that Petition 870250109410, dated 11 / 28 / 2025, page 20 / 105 17 / 83 corresponds to the third frequency position and is determined based on the following two items: an identifier for the first terminal device and a sequence of the third frequency position in N frequency positions. The N frequency positions correspond to the cells that can be accessed by the first terminal device, and N is a positive integer.

[0081] In a possible project, the first terminal device that corresponds to the third frequency position is determined based on the following three items: an identifier for the first terminal device, a sequence of the third frequency position in N frequency positions, and a first variable. The N frequency positions correspond to the cells that can be accessed by the first terminal device, and N is a positive integer.

[0082] In one possible project, the second indication information is ported to an LP-WUS.

[0083] In a possible project, the method also includes: The first network device sends third indication information to the first terminal device, where the third indication information indicates a second condition, the second condition is a condition under which a terminal device can access a current cell, and the current cell is a cell in which the third indication information is sent.

[0084] In a possible project, the method also includes: The first network device sends fourth indication information to the first terminal device, where the fourth indication information indicates N frequency positions, the N frequency positions correspond to cells that can be accessed by the first terminal device, and N is a positive integer.

[0085] In a possible project, the fourth indication information includes N ARFCNs, and the N ARFCNs are in correspondence Petition 870250109410, dated 11 / 28 / 2025, page 21 / 105 18 / 83 one-to-one with the N frequency positions.

[0086] In a possible project, the first indication information includes an ARFCN, and the ARFCN corresponds to the second frequency position.

[0087] In a possible project, the initial indication information indicates a fourth frequency position; an LP-WUS is configured in a cell corresponding to the fourth frequency position, which is different from the first frequency position and the second frequency position.

[0088] According to a fifth aspect, a communication method is provided. The method can be implemented by a second network device or it can be implemented by a chip of the second network device. The following is an example where the method is implemented by the second network device for descriptive purposes. The method includes: the second network device determines the fourth indication information, where the fourth indication information indicates N frequency positions, the N frequency positions correspond to cells that can be accessed by a first terminal device, and N is a positive integer; and the second network device sends a second downlink signal to the first terminal device, where the second downlink signal includes the fourth indication information, and the first terminal device is in an RRC (Remotely Connected) state.

[0089] In a possible project, the method also includes: The second network device determines, under a first condition, that the first terminal device accesses a third cell. The third cell corresponds to a third frequency position, the third frequency position is one of the N frequency positions, and the first condition includes at least one of the following:

[0090] Condition 1: The first terminal device corresponds to Petition 870250109410, dated 11 / 28 / 2025, page 22 / 105 19 / 83 third frequency position.

[0091] Condition 2: The second network device sends second indication information to the first terminal device, where the second indication information indicates that the frequency position at which the first terminal device initiates access is the third frequency position.

[0092] In a possible design, the first terminal device that corresponds to the third frequency position is determined based on the following two items: an identifier of the first terminal device and a sequence of the third frequency position in the N frequency positions.

[0093] In a possible project, the first terminal device that corresponds to the third frequency position is determined based on the following three items: an identifier of the first terminal device, a sequence of the third frequency position in the N frequency positions, and a first variable.

[0094] In one possible project, the second indication information is ported to an LP-WUS.

[0095] In a possible project, the method also includes: The second network device sends third indication information to the first terminal device, where the third indication information indicates a second condition, the second condition is a condition under which a terminal device can access a current cell, and the current cell is a cell in which the third indication information is sent.

[0096] In a possible project, the fourth indication information includes N ARFCNs, and the N ARFCNs are in one-to-one correspondence with the N frequency positions.

[0097] According to a sixth aspect, a method of communication is provided. The method can be carried out by a first dis Petition 870250109410, dated 11 / 28 / 2025, page 23 / 105 20 / 83 positive network or can be performed by a chip of the first network device. The following is an example where the method is performed by the first network device for descriptive purposes. The method includes: The first network device determines a first frequency position; and the first network device sends, at the first frequency position, an LP-WUS to a first terminal device. The first terminal device is in an RRC connected state, the LP-WUS indicates monitoring, on a first carrier, a PDCCH of a second network device, the first frequency position is outside the frequency range of the first carrier, and the first network device is the same as or different from the second network device.

[0098] In a possible design, the first frequency position is in the frequency range of a second carrier, and the second carrier is different from the first carrier.

[0099] In a possible project, LP-WUS also indicates that a PDCCH from the first network device should be monitored on the second carrier.

[00100] In a possible project, the LP-WUS includes an identifier for the first terminal device. The LP-WUS indicates the first terminal device to perform PDCCH monitoring on the first carrier and the second carrier.

[00101] In a possible design, the LP-WUS includes fifth and sixth indication information. The fifth indication information indicates the first terminal device to perform PDCCH monitoring on the first carrier, and the sixth indication information indicates the first terminal device to perform PDCCH monitoring on the second carrier.

[00102] According to a seventh aspect, a terminal device is provided. The terminal device includes a processor and memory. Petition 870250109410, dated 11 / 28 / 2025, page 24 / 105 21 / 83 ria. The processor is coupled to memory, the memory stores program instructions, and when the program instructions stored in memory are executed by the processor, the terminal device is led to perform the method according to any of the aspects of the first aspect or the possible designs of the first aspect, or the terminal device is led to perform the method according to any of the aspects of the second aspect or the possible designs of the second aspect, or the terminal device is led to perform the method according to any of the aspects of the third aspect or the possible designs of the third aspect.

[00103] According to an eighth aspect, a network device is provided. The network device includes a processor and memory; the processor is coupled to the memory, which stores program instructions. When the program instructions stored in memory are executed by the processor, the network device is made to perform the method according to any of the four aspects or the possible designs of the fourth aspect; or the network device is made to perform the method according to any of the five aspects or the possible designs of the fifth aspect; or the network device is made to perform the method according to any of the six aspects or the possible designs of the sixth aspect.

[00104] According to a ninth aspect, a chip is provided. The chip includes a processor and a memory coupled to the processor; the memory stores a computer program; the chip is located in a terminal device; and when the processor executes the computer program, the terminal device is made to perform the method according to any of the aspects of the first aspect or the possible designs of the first aspect; or the terminal device is made to perform the method according to any of the aspects of the second aspect or the possible designs of the second aspect; or Petition 870250109410, dated 11 / 28 / 2025, p. 25 / 105 22 / 83 the terminal device is made to perform the method according to any of the aspects of the third aspect or the possible designs of the third aspect.

[00105] According to a tenth aspect, a chip is provided. The chip includes a processor and a memory coupled to the processor; the memory stores a computer program; the chip is located in a network device; and when the processor executes the computer program, the network device is made to perform the method according to any of the four aspects or the possible designs of the fourth aspect; or the network device is made to perform the method according to any of the five aspects or the possible designs of the fifth aspect; or the network device is made to perform the method according to any of the six aspects or the possible designs of the sixth aspect.

[00106] According to an eleventh aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program or instructions. When the computer program or instructions are executed on a terminal device, the terminal device is made to perform the method according to any of the aspects of the first aspect or the possible designs of the first aspect, or the terminal device is made to perform the method according to any of the aspects of the second aspect or the possible designs of the second aspect, or the terminal device is made to perform the method according to any of the aspects of the third aspect or the possible designs of the third aspect.

[00107] According to a twelfth aspect, a computer-readable storage medium is provided, which stores a computer program or instructions. When the computer program or instructions are executed on a device of Petition 870250109410, dated 11 / 28 / 2025, page 26 / 105 23 / 83 network, the network device is made to perform the method according to any of the four aspects or the possible designs of the fourth aspect, or the network device is made to perform the method according to any of the five aspects or the possible designs of the fifth aspect, or the network device is made to perform the method according to any of the six aspects or the possible designs of the sixth aspect.

[00108] According to a thirteenth aspect, a computer program product is provided that includes instructions. When the computer program product is run on a computer, the computer is led to perform the method according to any of the preceding aspects.

[00109] According to the fourteenth aspect, a circuit system is provided. The circuit system includes a processing circuit, and the processing circuit is configured to perform the method according to any of the previous aspects.

[00110] According to the fifteenth aspect, a communication system is provided, including a terminal device and a network device. The terminal device is configured to perform the method according to any of the aspects of the first aspect or the possible designs of the first aspect, and the network device is configured to perform the method according to any of the aspects of the fourth aspect or the possible designs of the fourth aspect. Alternatively, the terminal device is configured to perform the method according to any of the aspects of the second aspect or the possible designs of the second aspect, and the network device is configured to perform the method according to any of the aspects of the fifth aspect or the possible designs of the fifth aspect. Alternatively, the terminal device is configured to perform the method according to any of the aspects of the third aspect. Petition 870250109410, dated 11 / 28 / 2025, p. 27 / 105 24 / 83 aspect or the possible designs of the third aspect, and the network device is configured to perform the method according to any of the aspects of the sixth aspect or the possible designs of the sixth aspect.

[00111] For technical purposes resulting from any project from the fourth to the fifteenth aspect, refer to the beneficial effects in the corresponding method provided above. The details will not be described again here. BRIEF DESCRIPTION OF THE DRAWINGS

[00112] Figure 1 is a diagram of the architecture of a communication system according to an embodiment of the present application;

[00113] Figure 2 is a schematic diagram of an operational circuit principle according to an embodiment of the present application;

[00114] Figure 3 is a diagram of a modulation scheme according to an embodiment of the present application;

[00115] Figure 4 is a diagram of another modulation scheme according to an embodiment of the present application;

[00116] Figure 5 is a schematic flowchart of a communication method according to a modality of the present application;

[00117] Figure 6 is a diagram of the LP-WUS deployment according to an embodiment of the present application;

[00118] Figure 7 is a schematic flowchart of another communication method according to an embodiment of the present application;

[00119] Figure 8 is a schematic flowchart of yet another communication method in accordance with a modality of the present application;

[00120] Figure 9 is a schematic flowchart of yet another communication method in accordance with a modality of the present application;

[00121] Figure 10 is another diagram of the LP-WUS deployment. Petition 870250109410, dated 11 / 28 / 2025, page 28 / 105 25 / 83 in accordance with a modality of the present request; and

[00122] Figure 11 is a diagram of the structure of a communication device according to an embodiment of the present application. DESCRIPTION OF EMBODIMENTS

[00123] The technical solutions for this application are described below with reference to the attached drawings.

[00124] The technical solutions in the embodiments of this application can be applied to various communication systems, for example, a universal mobile telecommunications system (UMTS), a wireless local area network (WLAN), a wireless fidelity system (Wi-Fi), a wired network, a vehicle-to-everything (V2X) communication system, a device-to-device (D2D) communication system, an Internet of Vehicles communication system, a fourth-generation (4G) mobile communication system, for example, a long-term evolution (LTE) system or a worldwide interoperability for microwave access (WiMAX) system, a fifth-generation (5G) mobile communication system, for example, an NR system,A sixth-generation (6G) mobile communication system and a communication system in an indoor commercial setting. This is not specifically limited to the embodiments of the present application. Indoor commercial settings include scenarios such as screen projection from a terminal device (e.g., a mobile phone) to a screen and a virtual reality (VR) game. Furthermore, the terms system and network may be used synonymously.

[00125] All aspects, modalities or characteristics are presented in this application when describing a system that can Petition 870250109410, dated 11 / 28 / 2025, page 29 / 105 26 / 83 include a plurality of devices, components, modules and the like. It should be noted and understood that each system may include another device, component, module and the like, and / or may not include all the devices, components, modules and the like discussed with reference to the attached drawings. Furthermore, a combination of these solutions may be used.

[00126] Furthermore, in the embodiments of this application, terms such as example and for example are used to represent the presentation of an example, an illustration or descriptions. Any embodiment or design scheme described as an example in this application should not be interpreted as being more preferable or having more advantages than another embodiment or design scheme. Precisely, the term example serves to present a concept in a specific way.

[00127] In the modalities of this application, of, relevant and corresponding may be used interchangeably in some cases. It should be noted that the meanings expressed by the terms are consistent when the differences are not emphasized.

[00128] The network architecture and service scenario described in the embodiments of this application are intended to describe the technical solutions in the embodiments contained therein with greater clarity, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. One versed in the subject matter may know that: With the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[00129] Figure 1 is a diagram of the architecture of a 1000 communication system to which an embodiment of the present application applies. As shown in Figure 1, the 1000 communication system Petition 870250109410, dated 11 / 28 / 2025, page 30 / 105 27 / 83 includes at least one network device (e.g., 110a and 110b in Figure 1) and at least one terminal device (e.g., 120a to 120j in Figure 1). The terminal device can communicate with the wireless network device. Optionally, different network devices can communicate with each other. Optionally, different terminal devices can communicate with each other.

[00130] It should be noted that Figure 1 is merely a diagram. Although not shown, other network devices may be included in the 1000 communication system. For example, the 1000 communication system may include one or more core network (CN) devices, a wireless relay device, and a wireless backhaul device. This is not specifically limited to these possibilities. The network device may be connected to the core network device via a wireless or wired connection. The core network device and the network device may be different independent physical devices, a function of the core network device and a logical function of the network device may be integrated into the same physical device, or part of the functions of the core network device and part of the functions of the network device may be integrated into a single physical device. This is not specifically limited to the embodiments of the present application.

[00131] Optionally, the network device may be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5th-generation (5G) mobile communication system, a next-generation NodeB in a 6th-generation (6G) mobile communication system, a base station in a future mobile communication system, an access node in a Wi-Fi (wireless fidelity, Wi-Fi) system or similar; or it may be a module or Petition 870250109410, dated 11 / 28 / 2025, page 31 / 105 28 / 83 a unit that complements part of the base station's functions. For example, the network device can be a central unit (CU) or a distributed unit (DU). The CU completes the functions of a radio resource control (RRC) protocol and a packet data convergence protocol (PDCP) of the base station, and may also complete the function of a service data adaptation protocol (SDAP). The DU completes the functions of a radio link control (RLC) layer and a medium access control (MAC) layer of the base station, and may also complete the functions of some or all of the physical layers (PHY).For specific descriptions of the protocol layers mentioned above, please refer to the related technical specifications of a 3rd generation partnership project (3GPP). The network device may be a macro base station (e.g., 110a in Figure 1), a micro base station or an indoor base station (e.g., 110b in Figure 1), or even a relay node, a donor node, or similar. The specific technology and specific form factor of the network device used are not limited in the embodiments of this application. For ease of description, the network device will be used as an example below.

[00132] Optionally, a terminal device accesses a central network by using the network device. The terminal device includes a device that provides voice and / or data connectivity to a user. Specifically, the terminal device includes a device that provides voice to the user, or includes a device that provides data connectivity to the user, or includes a device that provides both voice and data connectivity to the user. For example, the device Petition 870250109410, dated 11 / 28 / 2025, page 32 / 105 29 / 83 vo terminal may include a portable device with wireless connectivity or a processing device connected to a wireless modem. The terminal device may communicate with the central network via a radio access network (RAN), exchange voice or data with the RAN, or exchange both voice and data with the RAN.The terminal device may include user equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device (D2D) communication terminal device, a vehicle-to-everything (V2X) communication terminal device, a machine-to-machine / machine-type communication (M2M / MTC) communication terminal device, an Internet of Things (IoT) terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, a user device, or similar.For example, the terminal device may include a cell phone (or mobile phone), a computer with a mobile terminal device, or a portable, pocket-sized mobile device with an integrated computer. For example, the terminal device may be a phone with personal communication service (PCS), a cordless phone, a phone with session initiation protocol (SIP), a wireless local loop (WLL) station, or a personal digital assistant (PDA). Alternatively, the terminal device may include a device with limited capabilities, such as a low-power device, a device with limited storage capacity, or a device... Petition 870250109410, dated 11 / 28 / 2025, page 33 / 105 30 / 83 with limited processing capacity. For example, the terminal device includes an information reading device, such as a barcode, a radio frequency identification (RFID) device, a sensor, a global positioning system (GPS), or a laser scanner.

[00133] If the various terminal devices described above are located in a vehicle (for example, placed or installed in the vehicle), they can all be considered vehicle terminal devices. For example, vehicle terminal devices are also called on-board units (OBUs).

[00134] In the embodiments of the present application, the terminal device may also include a relay. Alternatively, it is understood that any device capable of performing data communication with a base station may be considered a terminal device.

[00135] In this embodiment of the present application, the apparatus configured to implement a terminal device function may be a terminal device or it may be an apparatus that supports the terminal device in implementing the function, for example, a chip system. The apparatus may be installed in the terminal device. In this embodiment of the present application, the chip system may include a chip or it may include a chip and another discrete component. In the technical solutions provided in the embodiments of the present application, an example is used for descriptive purposes in which the apparatus configured to implement the terminal function is a terminal device.

[00136] It should be understood that the network device and the terminal device may be in fixed positions or may be mobile. The network device and the terminal device may be deployed on land, including an indoor device, an outdoor device, a portable device, or a vehicle-mounted device; they may be Petition 870250109410, dated 11 / 28 / 2025, page 34 / 105 31 / 83 deployed on the water surface; or they may be deployed on an airplane, a balloon, or a satellite in orbit. The application scenarios for the network device and the terminal device are not limited to the embodiments of this application.

[00137] The roles of the network device and the terminal device can be relative. For example, a helicopter or an unmanned aerial vehicle 120i in Figure 1 can be configured as a mobile base station. For the terminal device 120j accessing the radio access network via 120i, the terminal device 120i is a network device. However, for the network device 110a, 120i is a terminal device. In other words, 110a and 120i communicate with each other using a radio air interface protocol. Certainly, 110a and 120i can alternatively communicate with each other using a base station interface protocol. In that case, for 110a, 120i is also a network device. Therefore, both the network device and the terminal device can be collectively referred to as communication devices.110a and 110b in Figure 1 can be referred to as communication devices with network device functionality, and 120a to 120j in Figure 1 can be referred to as communication devices with terminal device functionality.

[00138] Communication may be performed between the network device and the terminal device, between network devices, and between terminal devices using a licensed spectrum, may be performed using an unlicensed spectrum, or may be performed using both a licensed and an unlicensed spectrum. Communication may be performed using a spectrum below 6 gigahertz (GHz), may be performed using a spectrum above 6 GHz, or may be performed using both a spectrum below 6 GHz and a spectrum above 6 GHz. A spectrum resource used for wireless communication is not limited in the embodiments of this application. Petition 870250109410, dated 11 / 28 / 2025, p. 35 / 105 32 / 83

[00139] In some embodiments of the present application, the network device function may alternatively be performed by a module (e.g., a chip) in the network device, or it may be performed by a control subsystem that includes the network device function. The control subsystem that includes the network device function may be a control center in the application scenarios mentioned, such as smart grids, industrial control, intelligent transportation, and smart cities. The terminal device function may be performed by a module (e.g., a chip or a modem) in the terminal device itself, or it may be performed by an apparatus that includes the terminal device function.

[00140] In some embodiments of the present application, the network device sends a downlink signal or downlink information to the terminal device, with the downlink information being carried over a downlink channel. The terminal device sends an uplink signal or uplink information to the network device, with the uplink information being carried over an uplink channel. To communicate with the network device, the terminal device needs to establish a wireless connection with a cell controlled by the network device. A cell that establishes a wireless connection with the terminal device is called the terminal device's server cell. When the terminal device communicates with the server cell, the terminal device experiences additional interference from a signal originating from a neighboring cell.

[00141] It should be noted that the solutions presented in the embodiments of this application may alternatively be applied to another communication system, and the corresponding name may be replaced by the name of an equivalent function in that other system. Petition 870250109410, dated 11 / 28 / 2025, p. 36 / 105 33 / 83 communication topic.

[00142] To facilitate understanding of the modalities of this application, the terms used in each modality are briefly described below. It is important to emphasize that these descriptions are intended only to facilitate understanding of the modalities of this application and do not constitute any limitation to them. 1. Radio Resource Control (RRC) status

[00143] A terminal device has three RRC states: a connected RRC state, an idle RRC state, and an inactive RRC state.

[00144] The RRC connection state means that the terminal device establishes an RRC connection with a network device and can perform data transmission through that connection. Furthermore, the RRC connection state may also be abbreviated as the connected state. In the embodiments of this application, connected state and RRC connection state are identical and interchangeable concepts.

[00145] The RRC idle state means that the terminal device has not established an RRC connection with the network device and that the network device (e.g., a base station) has not stored the terminal device's context. If the terminal device needs to enter the RRC connected state from the RRC idle state, the terminal device will need to initiate an RRC connection establishment process. Furthermore, the RRC idle state may also be abbreviated as idle state. In the embodiments of this application, idle state and RRC idle state are identical and interchangeable concepts.

[00146] The inactive RRC state means that the terminal device previously entered the RRC state connected to a docking base station, and then the docking base station released the connection. Petition 870250109410, dated 11 / 28 / 2025, page 37 / 105 34 / 83 xão RRC, but stored the terminal device context. If the terminal device needs to return to the connected RRC state from the inactive RRC state, the terminal device needs to initiate an RRC reconnection process (or RRC reconnection restoration process) on the base station to which the terminal device is currently connected.

[00147] It should be understood that, since the terminal device may be in a moving state, the base station to which the terminal device is currently connected and the docking base station of the terminal device may be the same base station or different. Compared to the RRC establishment process, the RRC resumption process exhibits lower latency and lower signaling overhead. However, the docking base station needs to store the terminal device context, and this storage entails overhead. Furthermore, the RRC idle state may also be abbreviated as idle state. In the embodiments of the present application, idle state and RRC idle state are identical and interchangeable concepts.

[00148] In the modalities of this request, the following five concepts have the same meaning and are interchangeable with each other: inactive state, deactivation state, non-active state, deactivated state, or deactivation state. For example, the inactive state of the RRC can also be described as a non-active state of the RRC, abbreviated as the non-active state.

[00149] In the embodiments of the present application, both the idle state of the RRC and the inactive state of the RRC may be referred to as an unconnected state of the RRC or an unconnected state. 2. Two types of circuits included in a terminal device.

[00150] The terminal device includes a main circuit and an activation circuit, as shown in Figure 2. Petition 870250109410, dated 11 / 28 / 2025, p. 38 / 105 35 / 83 2-1. Main circuit of the terminal device

[00151] When the terminal device is in an idle / inactive state, the terminal device determines a paging frame (PF) and the position of a paging occasion (PO) in the PF based on an identifier (ID) (e.g., a UE ID) of the terminal device, and then receives the paging in the PO. Regardless of whether the terminal device receives the paging in an idle / inactive state or receives data in a connected state, the terminal device can perform these functions by using the terminal device's main circuit.

[00152] The main circuit may also have other names, for example, a main receiver. In the embodiments of the present application, the main circuit is used as an example for descriptive purposes and should not be interpreted as a limitation of the embodiments of the present application.

[00153] In the modalities of the present application, the meanings indicated by the following descriptions are the same and interchangeable with each other.

[00154] The terminal device operates using the main circuit, the terminal device operates on the main circuit, the terminal device receives or sends a signal using the main circuit, or the terminal device's main circuit is in an operational / enabled state.

[00155] In some embodiments of this application, the main circuit may be replaced by a core link. The core link indicates a connection relationship between the terminal device and a network device, being a logical concept and not a physical entity. A 5G NR system is used as an example. The core link may also be described as an NR core link.

[00156] Consequently, the meanings indicated by the following descriptions are the same and interchangeable with each other. Petition 870250109410, dated 11 / 28 / 2025, page 39 / 105 36 / 83

[00157] The terminal device operates through the main link (NR), the terminal device operates through the main link (NR), the terminal device receives or sends a signal through the main link (NR), or the terminal device's main link (NR) is in an operational / enabled state.

[00158] In the embodiments of this application, the operational state of the terminal device is described using the main link as an example, and should not be interpreted as a limitation of the embodiments of this application. 2-2. Terminal device activation circuit

[00159] To further reduce the power consumption of the terminal device, it can receive an additional signal through a small, independent, low-power circuit. This small circuit can be implemented with a simple structure or on a chip, exhibiting low power consumption. It can also be called a drive circuit (or activation circuit).

[00160] The activation circuit may also have other names, such as wake-up radio (WUR), low-power circuit, low-power wake-up radio (LP-WUR), and wake-up receiver (WUR). In the embodiments of this application, the activation circuit is used as an example for descriptive purposes and should not be construed as a limitation of the embodiments of this application.

[00161] In the modalities of this application, the meanings indicated by the following descriptions are the same and interchangeable with each other.

[00162] The terminal device operates using the activation circuit, the terminal device operates based on the activation circuit, the terminal device monitors or receives a low activation signal. Petition 870250109410, dated 11 / 28 / 2025, p. 40 / 105 37 / 83 power (low power signal, LP-WUS) using the activation circuit, or the activation circuit of the terminal device is in an operational state.

[00163] In some embodiments of this application, the activation circuit may be replaced by a WUR link. The WUR link indicates a connection relationship between the terminal device and the network device, being a logical concept and not a physical entity.

[00164] Consequently, the meanings indicated by the following descriptions are the same and interchangeable with each other.

[00165] The terminal device operates through the WUR link, the terminal device operates on the WUR link, the terminal device monitors or receives an LP-WUS through the WUR link, or the terminal device's WUR link is in an operational state.

[00166] In the modalities of this application, the meanings indicated by the following descriptions are the same and interchangeable with each other: monitoring or detection. In the modalities of this application, monitoring is used as an example for descriptive purposes.

[00167] In the embodiments of this application, the operational state of the terminal device is described using the WUR link as an example, and should not be interpreted as a limitation of the embodiments of this application.

[00168] For example, Figure 2 is a diagram illustrating a terminal device receiving an LP-WUS using an activation circuit.

[00169] As illustrated in Figure 2, for the terminal device in idle / sleep state, the device performs LPWUS detection using the activation circuit. If no LP-WUS is detected by the activation circuit, the terminal device switches the main circuit to the off state (or sleep state); otherwise, if an LP-WUS is detected by the activation circuit, the device... Petition 870250109410, dated 11 / 28 / 2025, page 41 / 105 38 / 83 vo terminal triggers the activation of the main circuit, that is, it controls the main circuit to the on or operational state. After the main circuit is activated, the terminal device can perform a paging reception process.

[00170] It should be understood that Figure 2 is described primarily by way of an example in which the LP-WUS indicates some information related to paging, and should not be interpreted as a limitation of the embodiments of the present application. It is evident that the LP-WUS can alternatively indicate all information related to paging. In that case, after the main circuit is activated, random accesses and other similar operations can be performed. 3. Modulation scheme of an LP-WUS

[00171] To reduce the power consumption of an activation circuit, the LP-WUS is usually modulated using on-off keying (OOK). Consequently, the activation circuit can receive the LP-WUS using an envelope detection method.

[00172] When the LP-WUS is modulated using OOK, each bit (i.e., one encoded bit) can correspond to a symbol. When the bit is 1, a signal is sent for the length of the symbol (in other words, the signal power is not 0 for the length of the symbol). For convenience, the symbol can be called the ON signal. When the bit is 0, no signal is sent for the length of the symbol (in other words, the signal power is 0 for the length of the symbol). For convenience, the symbol can be called the OFF signal. The waveform shown in Figure 3 represents four 1010 bits. Alternatively, conversely, when the bit is 0, a signal is sent for the length of the symbol (in other words, the signal power is not 0 for the length of the symbol). Petition 870250109410, dated 11 / 28 / 2025, page 42 / 105 39 / 83 symbol). When the bit is 1, no signal is sent during the length of the symbol (in other words, the signal power is 0 during the length of the symbol).

[00173] In addition, the symbol may also have another name, for example, it may be referred to as chip (chip). This is not limited to the embodiments of the present application.

[00174] When a receiver (for example, the activation circuit in Figure 2) demodulates an OOK signal (i.e., a signal obtained by performing OOK modulation on the LP-WUS), a threshold can be set. At the length of a symbol, if the power (or amplitude) of the received signal is greater than the threshold, the received bit information is considered to be 1; or, if the power (or amplitude) of the received signal is less than the threshold, the received bit information is considered to be 0.

[00175] However, in the previous method, it is difficult to define the receiver threshold (e.g., the activation circuit in Figure 2). If an inappropriate threshold is selected, the probability of demodulation errors increases. To solve this problem, one solution is to use Manchester encoding. For example, using Manchester encoding, a bit of original information 0 is encoded as 10 and a bit of original information 1 is encoded as 01. When sending a signal, a transmitter uses two OOK symbols to send 1 bit of original information. The bit of original information 0 corresponds to an ON signal and then to an OFF signal, and the bit of original information 1 corresponds to an OFF signal and then to an ON signal. When demodulating a Manchester-encoded OOK signal, the receiver (e.g., the activation circuit in Figure 2) can compare the relative values ​​of the signal powers (or amplitudes) at two adjacent symbols.If the power (or amplitude) of the signal in a previous symbol is greater than the power (or amplitude). Petition 870250109410, dated 11 / 28 / 2025, page 43 / 105 40 / 83 amplitude) of the signal in a subsequent symbol, the received bit information is considered as 0. Otherwise, the received bit information is considered as 1. Therefore, it is not possible to select an absolute threshold for this determination.

[00176] The LP-WUS can alternatively be modulated using frequency shift keying (FSK). When FSK is used for modulation, different frequency resources are used for different information. For example, 2FSK can carry 1 bit of information. When an information bit is 0, the information can be sent on a frequency resource f0 and no information is sent on a frequency resource f1; or when an information bit is 1, the information can be sent on a frequency resource f1 and no information is sent on a frequency resource f0. It is assumed that f0 < f1, and the waveform of an FSK signal whose information is 1010 is shown in Figure 4. At the 1st and 3rd symbols, the signal frequency is relatively high, and at the 2nd and 4th symbols, the signal frequency is relatively low.By demodulating the signal, the receiver can compare the powers at f0 and f1 to determine whether the transmitted information is 0 or 1.

[00177] FSK can support a higher modulation order to carry more information. For example, 4FSK can carry 2-bit information. When the information bits are 00, the information can be sent on a frequency resource f0, and no information is sent on frequency resources f1, f2, and f3; when the information bits are 01, the information can be sent on a frequency resource f1, and no information is sent on frequency resources f0, f2, and f3; when the information bits are 10, the information can be sent on a frequency resource f2, and no information is sent on frequency resources f0, f1 Petition 870250109410, dated 11 / 28 / 2025, page 44 / 105 41 / 83 and f3; or when the information bits are 11, information can be sent on a frequency resource f3, and no information is sent on frequency resources f0, f1, and f2. Similarly, a receiving end can compare the powers on various frequency resources to determine the transmitted information.

[00178] In the embodiments of this application, LP-WUS may also be described as a wake-up signal (WUS). The meanings of wake-up signal, WUS, low-power wake-up signal, and LP-WUS are the same and interchangeable. In the embodiments of this application, LP-WUS is used as an example for descriptive purposes. 4. Implementation of an LP-WUS

[00179] The deployment of LP-WUS can be understood as the following situation: when an operator has multiple frequency bands (for example, 5G frequency bands), LP-WUS is configured and sent in a cell corresponding to one or more frequency bands within those bands.

[00180] For example, China Mobile and China Broadcast & Television are building and sharing a 5G network together. The two operators currently have three 5G frequency bands: n28 (700 MHz), n41 (2.6 GHz), and n79 (4.9 GHz). Operators can deploy LP-WUS across all three 5G frequency bands or only in some of them.

[00181] If operators deploy LP-WUS across all three frequency bands, the following problems may occur.

[00182] From a network perspective, deploying LP-WUS across all three frequency bands could cause a significant resource overload, and consequently, operators may not be sufficiently motivated to deploy it.

[00183] From the point of view of a lateral terminal device, current Petition 870250109410, dated 11 / 28 / 2025, p. 45 / 105 42 / 83 In short, the main receiver of the terminal device covers different frequency bands by using multiple radio frequency channels (e.g., one radio frequency channel covering frequency bands below 1 GHz, one radio frequency channel covering frequency bands from 1 GHz to 3 GHz, and one radio frequency channel covering frequency bands from 3 GHz to 6 GHz). This is because the dynamic range of a single radio frequency channel is limited and can only cover a specific frequency range. To achieve low power consumption, the activation circuitry can use a different radio frequency channel than that of the main receiver. In this case, if the LP-WUS is deployed in multiple frequency bands, multiple radio frequency channels configured to receive the LP-WUS will also need to be integrated into the terminal device. This presents challenges in terms of terminal device cost and terminal device chip area.

[00184] If operators deploy LP-WUS in only part of the three frequency bands, the following problems may occur.

[00185] Firstly, when the terminal device is in idle / idle state, LP-WUS displays paging-related information. In this case, the following problems may occur.

[00186] Problem 1: When the terminal device is in an idle / sleep state, the LP-WUS may not be deployed to a cell where the terminal device is located after performing a cell search. Consequently, the terminal device cannot use the LP-WUS to save power in some scenarios.

[00187] For example, the terminal device searches for cells in a sequence of first cell 1 and then cell 2, and if it finds cell 1 first, the terminal device connects to cell 1. If the LP-WUS is not deployed in cell 1 and if the LP-WUS is deployed in cell 2, the terminal device cannot use the Petition 870250109410, dated 11 / 28 / 2025, page 46 / 105 43 / 83 LP-WUS for energy saving.

[00188] Problem 2: If most of the terminal devices that support the LP-WUS protocol are in the same cell, congestion of access resources may occur.

[00189] For example, under normal conditions, different terminal devices may be located in different cells. When a terminal device accesses a network after being paged, different terminal devices initiate access in different cells, and the number of terminal devices accessing the cells is average. However, when most terminal devices supporting LP-WUS are centralized in a single cell, these terminal devices initiate access in that same cell. Consequently, the cell's access resources are insufficient, a large number of terminal devices fail to access the cell, and service latency increases.

[00190] In a second aspect, in a related technology, an LP-WUS (low-power energy saving system) is generally used in a technical solution where the terminal device is disconnected (e.g., idle / standby), and not in a solution where the terminal device is connected. In other words, how to make the terminal device utilize the LP-WUS to save energy when connected is an urgent problem to be solved.

[00191] It should be understood that, in the embodiments of the present application, for a case where no LP-WUS is configured in a cell, the meanings of the following descriptions are the same and interchangeable with each other: No LP-WUS is configured in the cell, the cell does not support an LP-WUS function, no LP-WUS is sent in the cell, no LP-WUS is deployed in the cell, or a network device does not send an LP-WUS in the cell. Petition 870250109410, dated 11 / 28 / 2025, page 47 / 105 44 / 83

[00192] Similarly, for a case where an LP-WUS is configured in a cell, the meanings of the following descriptions are the same and interchangeable with each other: The LP-WUS is configured in a cell, the cell supports an LP-WUS function, the LP-WUS is sent in the cell, the LP-WUS is deployed in the cell, and a network device sends the LP-WUS in the cell.

[00193] In the embodiments of the present application, a cell and a carrier have the same meaning and are interchangeable with each other.

[00194] With reference to Problem 1 of the first aspect and to the second aspect, it can be concluded that when the LP-WUS is implanted in a portion of the cells, the terminal device may not be able to use the LP-WUS to save energy.

[00195] With this in mind, an embodiment of the present application provides a first communication method. The method can be applied to the communication system shown in Figure 1. The first communication method provided in this embodiment of the present application is applied to a first terminal device, and the first terminal device is in an unconnected RRC state (e.g., an idle / idle state). The method includes: The first terminal device receives, in a first cell, a first downlink signal from a first network device. The first cell corresponds to a first frequency position. Then, the first terminal device determines the first indication information based on the first downlink signal.The initial indication information suggests a second frequency position; an LP-WUS is configured in a cell corresponding to the second frequency position, and the second frequency position is different from the first frequency position.

[00196] In other words, the first terminal device determines the first indication information based on the first signal. Petition 870250109410, dated 11 / 28 / 2025, page 48 / 105 45 / 83 downlink received. Since the initial indication information points to a frequency position corresponding to a cell in which an LP-WUS is configured, after cell searching, even if no LP-WUS is configured in the first cell where the first terminal device is located, it can discover the cell in which the LP-WUS is deployed, helping the first terminal device to use the LP-WUS to save power.

[00197] It should be understood that the names of messages between devices, the names of parameters in messages or similar, in the modalities described below, are merely examples, and other names may be used in specific implementations. This is not limited to any of the modalities described.

[00198] The communication method provided in the embodiments of this application is described in detail below with reference to Figures 5 to 8. A communication method 500 provided in an embodiment of this application includes the following steps.

[00199] S501: A first network device sends, in a first cell, a first downlink signal to a first terminal device. Correspondingly, the first terminal device receives, in the first cell, the first downlink signal from the first network device.

[00200] The first terminal device is in an RRC (Remotely Connected) state. This can be understood as the first terminal device being in a state other than connected, for example, an idle / idle state.

[00201] The first network device corresponds to the first cell; in other words, a downlink signal in the first cell is sent by the first network device.

[00202] The first downlink signal is described as follows: Petition 870250109410, dated 11 / 28 / 2025, page 49 / 105 46 / 83

[00203] For example, the first downlink signal can be a system information block (SIB). For example, the first idle / idle terminal device performs cell fetching and downlink synchronization. After completing downlink synchronization, the first terminal device can receive a system message from the first network device. The system message includes the SIB.

[00204] The first cell corresponds to a first frequency position. The first frequency position can be a frequency, a frequency range, or a frequency band. For example, the first frequency position can be the center frequency of the first cell, or it can correspond to a range of a frequency resource occupied by the first cell, or it can be a frequency band corresponding to a frequency resource occupied by the first cell.

[00205] In one example, no LP-WUS is configured in the first cell. This can be replaced by one of the following options: the first cell does not support the LP-WUS function, no LP-WUS is sent in the first cell, or no LP-WUS is deployed in the first cell. In other words, the first network device does not send LP-WUS in the first cell.

[00206] In another example, an LP-WUS is configured in the first cell. This can be replaced by one of the following options: The first cell supports the LP-WUS function, the LP-WUS is sent in the first cell, and the LP-WUS is deployed in the first cell. In other words, the first network device sends the LP-WUS in the first cell.

[00207] S502: The first terminal device determines the initial indication information based on the first downlink signal. The initial indication information indicates a se Petition 870250109410, dated 11 / 28 / 2025, page 50 / 105 47 / 83 second frequency position. An LP-WUS is configured in a cell corresponding to the second frequency position, which is different from the first frequency position.

[00208] For example, the first downlink signal is a SIB, and one or more information elements in the SIB include the first indication information.

[00209] It can be understood that the first indication information indicates a frequency position in which an LP-WUS is configured, and that the first indication information may indicate a single frequency position.

[00210] For example, the cell corresponding to the second frequency position includes a second cell. It can be understood that the second cell corresponds to the second frequency position. The second frequency position can be a frequency, a frequency range, or a frequency band. For example, the second frequency position can be the center frequency of the second cell, or it can correspond to a range of a frequency resource occupied by the second cell, or even to a frequency band corresponding to a frequency resource occupied by the second cell.

[00211] In some embodiments, the first indication information also indicates a fourth frequency position. An LPWUS is configured in a cell corresponding to the fourth frequency position, which is different from the first frequency position and the second frequency position.It can be understood that the initial indication information indicates the frequency position in which an LP-WUS is configured, and may indicate two or more frequency positions. This helps to further reduce the possibility of congestion caused by multiple terminal devices accessing the same cell. The initial indication information may be a list or in another format. This is not limited to this. Petition 870250109410, dated 11 / 28 / 2025, page 51 / 105 48 / 83 modality of the present request.

[00212] For example, the initial indication information includes an absolute radio frequency channel number (ARFCN). There can only be one ARFCN. This indicates a frequency position where an LP-WUS is configured. For example, the initial indication information includes an ARFCN 1. The ARFCN 1 indicates the second frequency position.

[00213] Alternatively, there may be a plurality of ARFCNs. This indicates a plurality of frequency positions in which an LP-WUS is configured. For example, the first indication information includes an ARFCN 1 and an ARFCN 2. ARFCN 1 indicates the second frequency position and ARFCN 2 indicates the fourth frequency position.

[00214] In this embodiment of the present application, the ARFCN may be an absolute frequency number in LTE (E-UTRAN absolute radio frequency channel number, EARFCN) or an absolute frequency number in NR (NR absolute radio frequency channel number, NRARFCN). This is not a limitation of the embodiments of this application.

[00215] In some embodiments, for the first terminal device, after the first terminal device determines the first indication information, the following cases are included.

[00216] Case 1: No LP-WUS is configured in the first cell. The first terminal device connects to the first cell.

[00217] For example, after receiving the initial indication information, the first terminal device performs a cell search. However, the first terminal device does not find another suitable cell to connect to. Therefore, the first terminal device reconnects to the first cell, or continues connecting to the first cell.

[00218] Case 2: An LP-WUS is configured in the first cell. The Petition 870250109410, dated 11 / 28 / 2025, page 52 / 105 49 / 83 The first terminal device is installed in the first cell. Then, the first terminal device monitors the LP-WUS in the first cell.

[00219] For example, the first terminal device receives LP-WUS configuration information, enables an activation circuit based on the LP-WUS configuration information, and monitors the LP-WUS from the first network device in the first cell using the activation circuit.

[00220] In this way, since the LP-WUS is configured in the first cell and the first terminal device is located in the first cell, the first terminal device can use the LP-WUS to save power.

[00221] Case 3: An LP-WUS is configured in the second cell. The first terminal device performs a cell search and connects to the second cell. For details, see the descriptions in S503.

[00222] S503: The first terminal device performs a cell search based on the second frequency position and connects to the second cell.

[00223] The cell corresponding to the second frequency position includes the second cell.

[00224] Figure 6 is used as an example. After the first terminal device receives the first downlink signal in the first cell and determines the first indication information based on the first downlink signal, the cell in which the first terminal device is positioned changes; more specifically, the cell in which the first terminal device is positioned changes from the first to the second cell, as shown by the arrow in Figure 6.

[00225] It should be understood that, in this form of the present application, the second cell corresponds to the second frequency position. An LP-WUS is configured in the second cell. This can also Petition 870250109410, dated 11 / 28 / 2025, page 53 / 105 50 / 83 can be described as at least one of the following options: the second cell supports an LP-WUS function, an LP-WUS is sent in the second cell, and an LP-WUS is deployed in the second cell. In other words, a second network device sends the LP-WUS in the second cell.

[00226] It should be understood that, in this modality of the present application, the first network device is the same as or different from the second network device.

[00227] When the first network device is the same as the second network device, the following scenarios may occur.

[00228] Scenario 1: The first terminal device is installed in the first cell.

[00229] Scenario 2: The first terminal device connects to the second cell, and a downlink signal from the first cell and a downlink signal from the second cell are sent by the same network device.

[00230] When the first network device is different from the second network device, the following scenario may occur.

[00231] Scenario 3: The first terminal device is connected to the second cell, and a downlink signal from the first cell and a downlink signal from the second cell are sent by different network devices. Furthermore, a network device that sends the downlink signal to the first terminal device in the first cell is called the first network device. A network device that sends the downlink signal to the first terminal device in the second cell is called the second network device.

[00232] S504: The first terminal device monitors the LP-WUS in the second cell.

[00233] For example, the first terminal device receives information Petition 870250109410, dated 11 / 28 / 2025, page 54 / 105 51 / 83 LP-WUS configuration information enables an activation circuit based on the LP-WUS configuration information and monitors the LP-WUS of the second cell using this circuit. This can be understood as the first terminal device operating on a WUR link in the second cell and receiving the LP-WUS from the second network device through this WUR link, thus reducing the power consumption of the first terminal device.

[00234] Thus, since the LP-WUS is configured in the second cell and the first terminal device is located in the second cell, the first terminal device can use the LP-WUS to save power.

[00235] In some embodiments, as shown in Figure 7, the first terminal device also performs S510.

[00236] S510: The first terminal device receives the fourth indication information.

[00237] The fourth indication information indicates N frequency positions, the N positions correspond to the cells that can be accessed by the first terminal device, and N is a positive integer. In other words, each of the N frequency positions corresponds to a cell that can be accessed by the first terminal device.

[00238] This can be replaced by the following description: The fourth indication information indicates N frequency positions, the N frequency positions are frequency positions that can be accessed by the first terminal device, and N is a positive integer. In other words, each of the N frequency positions is a frequency position accessible by the first terminal device.

[00239] For example, the fourth indication information includes N ARFCNs. The N ARFCNs correspond one by one to the N positions of Petition 870250109410, dated 11 / 28 / 2025, pp. 55 / 105 52 / 83 frequency. For example, the fourth indication information includes an ARFCN 1 and an ARFCN 2. ARFCN 1 indicates a frequency position corresponding to cell 1, and ARFCN 2 indicates a frequency position corresponding to cell 2. The first terminal device is allowed to initiate access in cell 1 or cell 2.

[00240] It should be understood that the N frequency positions may include a frequency position corresponding to the first cell (i.e., the first frequency position), or may include a frequency position corresponding to the second cell (i.e., the second frequency position), or may include a frequency position corresponding to another cell (a cell different from the first and second). This is not limited to this embodiment of the present application.

[00241] For example, the fourth indication information is carried in a SIB message.

[00242] For example, as shown in a block where Case 1 in Figure 7 is located, S510 includes S510a or S510b.

[00243] S510a: The first network device sends, in the first cell, the fourth indication information to the first terminal device. Correspondingly, the first terminal device receives, in the first cell, the fourth indication information from the first network device.

[00244] It can be understood that if the LP-WUS is configured in the first cell and the first terminal device is connected to the first cell, the first terminal device can perform S510a.

[00245] In other words, since the first cell is a cell in which the LP-WUS is configured, a large number of terminal devices can connect to the first cell and initiate access. The first network device sends, in the first cell, the fourth indication information to the first terminal device, indicating Petition 870250109410, dated 11 / 28 / 2025, page 56 / 105 53 / 83 as N frequency positions so that the first terminal device can determine a frequency position among the N available frequency positions to initiate access. The frequency position at which the first terminal device initiates access may be different from the frequency position at which another terminal device in the same cell initiates access; that is, the probability of the frequency positions being different increases. In this case, the probability of an access conflict for the first terminal device is reduced, helping it to successfully access and reducing access delay.

[00246] S510b: The second network device sends, in the second cell, the fourth indication information to the first terminal device. Correspondingly, the first terminal device receives, in the second cell, the fourth indication information from the second network device.

[00247] It can be understood that if the LP-WUS is configured in the second cell and the first terminal device is connected to the second cell (see descriptions in S503 and S504), the first terminal device can perform S510b.

[00248] In other words, since the second cell is a cell in which the LP-WUS is configured, a large number of terminal devices can establish themselves in the second cell and initiate access. The second network device sends, in the second cell, the fourth indication information to the first terminal device, indicating the N frequency positions so that the first terminal device can determine a frequency position among the N available frequency positions to initiate access. The frequency position in which the first terminal device initiates access may be different from the frequency position in which another terminal device in the same cell initiates access, i.e., the probability of the Petition 870250109410, dated 11 / 28 / 2025, page 57 / 105 The fact that 54 / 83 frequency positions are different increases the probability of an access conflict from the first terminal device. In this case, the probability of an access conflict from the first terminal device is reduced, helping it to successfully access the device and reducing access delay.

[00249] For example, as shown in a block where Case 2 in Figure 7 is located, S510 can be replaced by S510c or S510d.

[00250] S510c: The first terminal device receives a second downlink signal.

[00251] For example, the second downlink signal could be a SIB.

[00252] The first terminal device in idle / idle state performs cell search and downlink synchronization. After completing the downlink synchronization process, the first terminal device receives a system message. The system message includes the SIB (Signaling Information System).

[00253] It should be understood that the second downlink signal may be a downlink signal from the first cell. For example, if the LP-WUS is configured in the first cell and the first terminal device is connected to the first cell, the first network device will send, in the first cell, the second downlink signal to the first terminal device. Consequently, the first terminal device will receive, in the first cell, the second downlink signal from the first network device.

[00254] Alternatively, the second downlink signal can be a downlink signal from the second cell. For example, if the LP-WUS is configured in the second cell and the first terminal device is connected to the second cell, the second network device will send the second signal in the second cell. Petition 870250109410, dated 11 / 28 / 2025, page 58 / 105 55 / 83 downlink signal to the first terminal device. Consequently, the first terminal device will receive, in the second cell, the second downlink signal from the second network device.

[00255] S510d: The first terminal device determines the fourth indication information based on the second downlink signal.

[00256] For example, the second downlink signal is a SIB, and an information element in the SIB includes the fourth indication information.

[00257] In other words, the first terminal device obtains the fourth indication information based on the second downlink signal.

[00258] In some embodiments, as shown in a block in which Method 1 in Figure 8 is located, the first terminal device also performs S520.

[00259] S520: The first terminal device accesses a third cell under a first condition.

[00260] The third cell corresponds to a third frequency position. The first condition includes at least one of the following:

[00261] Condition 1: The first terminal device corresponds to the third frequency position.

[00262] Condition 2: The first terminal device receives the second indication information. The second indication information indicates that the frequency position at which the first terminal device initiates access is the third frequency position.

[00263] For example, Condition 1 is described as follows:

[00264] Example 1: The correspondence between the first terminal device and the third frequency position is determined based on the following two items: an identifier of the first terminal device Petition 870250109410, dated 11 / 28 / 2025, p. 59 / 105 56 / 83 final and a sequence of the third frequency position in the N frequency positions.

[00265] For example, the identifier of the first terminal device corresponds to the sequence of the third frequency position in the N frequency positions. For the N frequency positions, see the descriptions in S510. The details will not be described again here.

[00266] For example, the identifier of the first terminal device is called the UE ID. The first terminal device performs calculations using the UE ID and determines the position of the third frequency based on the result of the calculation.

[00267] For example, when UE ID%N=0, it indicates that the third frequency position is the 1st frequency position in a set of N frequency positions. When UE ID%N=1, it indicates that the third frequency position is the 2nd frequency position in a set of N frequency positions. When UE ID%N=2, it indicates that the third frequency position is the 3rd frequency position in a set of N frequency positions. Other inferences can be made by analogy, and the details will not be described.

[00268] For example, when UE ID%N=0, this indicates that the third frequency position is position 0 in a set of N frequency positions. When UE ID%N=1, this indicates that the third frequency position is the 1st position in a set of N frequency positions. When UE ID%N=2, this indicates that the third frequency position is the 2nd position in a set of N frequency positions. Other conclusions can be drawn by analogy, and the details will not be described here.

[00269] Thus, in Example 1, the first terminal device can determine a frequency position among the N frequency positions as the third frequency position based on the identifier. Petition 870250109410, dated 11 / 28 / 2025, pp. 60 / 105 57 / 83 first terminal device.

[00270] Example 2: The fact that the first terminal device corresponds to the third frequency position is determined based on the following three items: an identifier of the first terminal device, a sequence of the third frequency position in the N frequency positions, and a first variable X.

[00271] For the N frequency positions, see the descriptions in S510. Details will not be described again here.

[00272] The first variable X can be a variable related to time information. For example, the first variable X is related to the time when the first terminal device receives the LP-WUS, for example, an index value of a frame, a slot, or a symbol in which the LP-WUS is located.

[00273] For example, the identifier of the first terminal device is called the UE ID. The first terminal device performs calculations using the UE ID and the first variable X, and determines the position of the third frequency based on the result of the calculation.

[00274] For example, when (UE ID+X)%N=0, it indicates that the third frequency position is the 1st frequency position in the N frequency positions. When (UE ID+X)%N=1, it indicates that the third frequency position is the 2nd frequency position in the N frequency positions. When (UE ID+X)%N=2, it indicates that the third frequency position is the 3rd frequency position in the N frequency positions. Other inferences can be made by analogy, and the details will not be described.

[00275] For example, when (UE ID+X)%N=0, it indicates that the third frequency position is frequency position 0 in a set of N frequency positions. When (UE ID+X)%N=1, it indicates that the third frequency position is the 1st frequency position in a set of N frequency positions. For example, when (UE ID+X)%N=2, it indicates Petition 870250109410, dated 11 / 28 / 2025, p. 61 / 105 58 / 83 that the third frequency position is the 2nd frequency position in a set of N frequency positions. Other conclusions can be drawn by analogy, and the details will not be described.

[00276] In this way, the first terminal device can use different initial variables at different times and, consequently, the position of the third determined frequency also changes. For example, at first, the position of the third frequency is the same as the frequency position of a cell in which the first terminal device is currently positioned. The first terminal device can start accessing without performing a new cell selection. This further reduces access delay.

[00277] For example, at a later stage, the third frequency position is different from the frequency position of the cell in which the first terminal device is currently positioned. The first terminal device re-selects the cell and then initiates access. In this way, the congestion of access resources caused by the large number of terminal devices initiating access to the same cell is avoided to some extent.

[00278] For example, Condition 2 is described as follows:

[00279] In Condition 2, the second indication information is sent by a network device corresponding to the cell in which the first terminal device is currently located.

[00280] For example, when the LP-WUS is configured in the first cell and the cell to which the first terminal device is currently connected is the first cell, the second indication information is sent by the first network device. Consequently, Condition 2 can be described as follows: The first terminal device receives the second indication information from the first network device. The second indication information may be contained in the LP-WUS sent by the first network device. Petition 870250109410, dated 11 / 28 / 2025, page 62 / 105 59 / 83 in the first cell.

[00281] For example, when the LP-WUS is configured in the second cell and the cell in which the first terminal device is currently located is the second cell, the second indication information is sent by the second network device. Consequently, Condition 2 can be described as follows: The first terminal device receives the second indication information from the second network device. The second indication information may be carried in the LP-WUS sent by the second network device in the second cell.

[00282] It is important to understand that S520 includes the following two examples:

[00283] Example 1: The first terminal device accesses the third cell when condition 1 is met.

[00284] Example 2: The first terminal device accesses the third cell when condition 2 is met.

[00285] It should be noted that, in this embodiment of the present application, the first terminal device can perform both S520 and S510. The first terminal device can access a cell when performing S520. The first terminal device can receive the fourth indication information when performing S510. Example 1 in S520 can be combined with S510a or S510b (i.e., Case 1 in Figure 7), or it can be combined with S510c and S510d (i.e., Case 2 in Figure 7). Similarly, Example 2 in S520 can be combined with S510a or S510b (i.e., Case 1 in Figure 7), or it can be combined with S510c and S510d (i.e., Case 2 in Figure 7).

[00286] It is important to understand that the third cell is the same as or different from the cell in which the first terminal device is currently positioned. An LP-WUS may be configured in the third cell (i.e., a cell corresponding to the third frequency position), Petition 870250109410, dated 11 / 28 / 2025, pp. 63 / 105 60 / 83 or no LP-WUS can be configured in the third cell.

[00287] For example, when the cell to which the first terminal device is currently connected is the first cell, the third cell may be the first cell (in which case, if LP-WUS is configured in the first cell, the third cell is a cell in which LP-WUS is configured; or if no LP-WUS is configured in the first cell, the third cell is a cell in which no LP-WUS is configured), or it may be different from the first cell (in which case, the third cell may be a cell in which LP-WUS is configured or it may be a cell in which no LP-WUS is configured).

[00288] Furthermore, when the third cell is the first cell, the first terminal device initiates access to access the first cell (i.e., the third cell). Moreover, the second network device in Condition 2 is the same as the first network device (for details, see the descriptions of Scenario 1 in S503). When the third cell is different from the first cell, the first terminal device first performs cell re-selection to the third cell and then initiates access to access the third cell.

[00289] For example, when the cell to which the first terminal device is currently connected is the second cell, the third cell may be the second cell (in which case the third cell is a cell in which LP-WUS is configured) or it may be different from the second cell (in which case the third cell may be a cell in which LP-WUS is configured or it may be a cell in which no LP-WUS is configured).

[00290] Furthermore, when the third cell is the second cell, the first terminal device initiates access to access the second cell (i.e., the third cell). Moreover, the second network device in Condition 2 is the same as the first network device (pa Petition 870250109410, dated 11 / 28 / 2025, pp. 64 / 105 61 / 83 for details, see Scenario 2 descriptions in S503) or different from the first network device (for details, see Scenario 3 descriptions in S503). When the third cell is different from the second cell, the first terminal device first performs cell re-selection for the third cell and then initiates access to access the third cell.

[00291] In other words, the first terminal device can determine the third frequency position under the first condition and, based on that position, decide to access the third cell. Thus, the third cell is the one to which the first terminal device is currently connected, or the third cell is different from the cell to which the first terminal device is currently located, to help reduce congestion that can occur when a large number of terminal devices connect to the same cell and initiate access to the same cell.

[00292] In some embodiments, as shown in a block where Method 2 in Figure 8 is located, the first terminal device also performs S530 and S531.

[00293] S530: The first terminal device receives the third indication information.

[00294] The third indication information informs a second condition. This second condition allows the terminal device to access a current cell.

[00295] For example, the second condition includes: A terminal device whose UE ID is an odd number can access the current cell. Alternatively, the second condition includes: A terminal device whose UE ID is an even number can access the current cell. In this way, it is possible to control so that, on average, only half of the terminal devices access the current cell.

[00296] Another example: the second condition includes: a device Petition 870250109410, dated 11 / 28 / 2025, pages 65 / 105 62 / 83 terminals whose UE ID is divisible by 4 can access the current cell. In this way, it is possible to control so that, on average, only a quarter of the terminal devices access the current cell.

[00297] The current cell is the one in which the third indication information is sent. For example, the current cell is the first cell or the second cell. For more details, see the descriptions in S530a and S530b. Details are not described here.

[00298] For example, as shown in the block where Way 2 in Figure 8 is located, S530 includes S530a or S530b.

[00299] S530a: The first network device sends, in the first cell, the third indication information to the first terminal device. Correspondingly, the first terminal device receives, in the first cell, the third indication information from the first network device.

[00300] It can be understood that if the LP-WUS is configured in the first cell and the first terminal device is connected to the first cell, the first terminal device will perform the S530a procedure. In this case, the current cell of the first terminal device will be the first cell.

[00301] In this case, the current cell of the first terminal device is the first cell.

[00302] S530b: The second network device sends, in the second cell, the third indication information to the first terminal device. Correspondingly, the first terminal device receives, in the second cell, the third indication information from the second network device.

[00303] It can be understood that if the LP-WUS is configured in the second cell and the first terminal device is connected to the second cell, the first terminal device will perform the S530b procedure. In this case, the current cell of the first terminal device Petition 870250109410, dated 11 / 28 / 2025, pp. 66 / 105 63 / 83 will be the second cell.

[00304] S531: The first terminal device accesses the third cell based on the third indication information.

[00305] When the first terminal device meets the second condition, the third cell is identical to the current cell. In other words, the first terminal device initiates access in the current cell.

[00306] Conversely, when the first terminal device does not meet the second condition, the third cell is different from the current cell. In other words, the first terminal device first performs a cell re-selection for the third cell and then initiates access. For example, the third cell might be a cell determined by the first terminal device through a cell search. In another example, the first terminal device determines, as the third frequency position, a frequency position from among the N frequency positions indicated by the fourth indication information and then determines the third cell based on the third frequency position.

[00307] In other words, the first terminal device determines, based on the second condition indicated by the third piece of information sent by the second network device, whether to access the third cell. When the first terminal device meets the second condition, the third cell is the current cell to which the first terminal device is connected. When the first terminal device does not meet the second condition, the third cell is different from the current cell to which the first terminal device is connected. This helps reduce congestion that can be generated when a large number of terminal devices connect to the same cell and initiate access within the same cell.

[00308] It should be understood that the third indication information may be replaced by the following description: Petition 870250109410, dated 11 / 28 / 2025, pp. 67 / 105 64 / 83

[00309] The third indication information reports a third condition. The third condition is the condition in which the terminal device cannot access the current cell.

[00310] For example, the third condition includes: A terminal device whose UE ID is an odd number cannot access the current cell. Alternatively, the third condition includes: A terminal device whose UE ID is an even number cannot access the current cell. In this way, it is possible to control so that, on average, only half of the terminal devices access the current cell.

[00311] Another example would be the third condition: a terminal device whose user ID (UE ID) is divisible by 4 cannot access the current cell. In this way, it is possible to control so that, on average, only three-quarters of the terminal devices access the current cell.

[00312] Consequently, when the first terminal device does not meet the third condition, the third cell is the same as the current cell. In other words, the first terminal device initiates access in the current cell. On the other hand, when the first terminal device meets the third condition, the third cell is different from the current cell. In other words, the first terminal device first performs cell re-selection for the third cell and then initiates access.

[00313] The above describes the technical solution in which the first terminal device is in a disconnected state.

[00314] The following describes a technical solution in which the first terminal device is in a connected state.

[00315] One embodiment of the present application provides a second method of communication. The method can be applied to the communication system shown in Figure 1. The second method of communication provided in this embodiment of the present application is applied to a Petition 870250109410, dated 11 / 28 / 2025, pp. 68 / 105 65 / 83 first terminal device, and the first terminal device is in an RRC connected state. The method includes: The first terminal device determines a first frequency position, and then the first terminal device monitors, at the first frequency position, an LP-WUS from a first network device. The LP-WUS indicates monitoring, at a first carrier, a PDCCH from a second network device, the first frequency position is outside the frequency range of the first carrier, and the first network device is the same as or different from the second network device.

[00316] In other words, when in the RRC connected state, the first terminal device monitors, on the first frequency, the LP-WUS signal of the first network device. The LP-WUS indicates that it should monitor, on the first carrier, the PDCCH signal of the second network device, and the first frequency is outside the frequency range of the first carrier. Therefore, the first terminal device can perform PDCCH signal monitoring on a corresponding carrier based on the LP-WUS when in the RRC connected state, to utilize the LP-WUS and save power.

[00317] The phrase "LP-WUS indicates monitoring, on a first carrier, a PDCCH of a second network device" can be replaced by "LP-WUS indicates whether to monitor, on the first carrier, the PDCCH of the second network device."

[00318] It should be understood that the names of messages between devices, the names of parameters in messages or similar, in the modalities described below, are merely examples, and other names may be used in specific implementations. This is not limited to any of the modalities described.

[00319] The communication method provided in the embodiments of this application is described in detail below with reference to Figures 9 and 10. A communication method 900 provided in a Petition 870250109410, dated 11 / 28 / 2025, pp. 69 / 105 66 / 83 This application procedure includes the following steps.

[00320] S901: A first terminal device determines a first frequency position.

[00321] The first terminal device is in an RRC connected state.

[00322] Reception on the first frequency occurs as follows:

[00323] In one example, the first frequency position is outside the frequency range of a carrier (for example, the next first carrier).

[00324] For example, the first carrier is designated as carrier no. 1, and the first frequency position is an out-band monitoring position configured on carrier no. 1. In this case, the first terminal device can be configured with a single carrier, that is, the first carrier. Although the first frequency position is outside carrier no. 1, the first frequency position can logically be used as part of carrier no. 1.

[00325] In another example, the first frequency position is within the frequency range of a carrier (for example, the next second carrier). In this case, since the first carrier and the second carrier are different carriers, the first frequency position is outside the frequency range of the first carrier.

[00326] For example, the first carrier is designated as carrier no. 1, the second carrier as carrier no. 2, and the first frequency position is a monitoring position configured on carrier no. 2. In this case, the first terminal device can be configured with two carriers, that is, the first carrier and the second carrier.

[00327] S902: The first terminal device monitors, in the first Petition 870250109410, dated 11 / 28 / 2025, pp. 70 / 105 67 / 83 frequency position, an LP-WUS of a first network device.

[00328] LP-WUS indicates monitoring, on a first carrier, a PDCCH originating from a second network device.

[00329] For example, the LP-WUS may include a UE ID. The UE ID represents an identifier of the first terminal device. When the first terminal device receives the LP-WUS and the UE ID included in the LP-WUS corresponds to the first terminal device, this indicates that the LP-WUS instructs the first terminal device to monitor, on the first carrier, the PDCCH of the second network device. Alternatively, conversely, when the first terminal device does not receive the LP-WUS including the UE ID corresponding to the first terminal device, this indicates that the LP-WUS instructs the first terminal device not to monitor, on the first carrier, the PDCCH of the second network device.

[00330] In this embodiment of the present application, the phrase the LP-WUS indicates whether to monitor, on a first carrier, a PDCCH of a second network device can be replaced by the LP-WUS indicates whether to monitor, on the first carrier, the PDCCH of the second network device.

[00331] For example, the LP-WUS may include a UE ID and a first bit. The UE ID represents an identifier of the first terminal device. When the first bit is 1, it indicates that the LP-WUS tells the first terminal device that it should monitor, on the first carrier, the PDCCH of the second network device. When the first bit is 0, it indicates that the LP-WUS tells the first terminal device that it should not monitor, on the first carrier, the PDCCH of the second network device.

[00332] It should be understood that, in this modality of the present application, the first network device is the same as or different from the second. Petition 870250109410, dated 11 / 28 / 2025, page 71 / 105 68 / 83 network device.

[00333] For example, the second network device being the same as the first network device can be understood as the fact that the LP-WUS and the PDCCH on the first carrier are sent by the same network device.

[00334] Another example, the second network device being different from the first network device can be understood as the fact that the LP-WUS and PDCCH on the first carrier are sent by different network devices.

[00335] When the first network device is different from the second network device, before the first network device performs S902, the first device determines the instant when the second network device sends the PDCCH (to the first terminal device). For example, the second network device sends information to the first network device so that the first network device knows the instant when the second network device sends the PDCCH (to the first terminal device). In this way, the first device determines the sending, on the first frequency, of the LP-WUS to the first terminal device. Consequently, the first terminal device detects, on the first frequency, the LP-WUS coming from the first device on the same frequency.

[00336] The first frequency position is outside the frequency range of the first carrier.

[00337] In one example, the first carrier is designated as carrier no. 1 and the first frequency position is an out-band monitoring position configured on carrier no. 1. For details, see the descriptions in S901. The details will not be described again.

[00338] In another example, the first frequency position is Petition 870250109410, dated 11 / 28 / 2025, pp. 72 / 105 69 / 83 in the frequency band of a second carrier, and the second carrier is different from the first carrier. Consequently, S902 can be replaced by the following description: The first terminal device monitors, on the second carrier, the LP-WUS of the first network device. The LP-WUS indicates monitoring, on the first carrier, the PDCCH of the second network device. This can be understood as the possibility of the LP-WUS implementing cross-carrier indication. Specifically, the carrier (namely, the second carrier) for LP-WUS transmission and the carrier (namely, the first carrier) on which the PDCCH should be monitored are different carriers, so the LP-WUS does not need to be configured on each carrier, thus reducing the resource overhead of the LP-WUS.

[00339] In some embodiments, as shown in Figures 9 and 10, after performing S902, the first terminal device also performs S903.

[00340] S903: The first terminal device monitors, on the first carrier, the PDCCH of the second network device based on the detected LPWUS.

[00341] For example, when detecting the LP-WUS, the first terminal device enables a main circuit to operate on a main link and monitors, on the first carrier, the PDCCH of the second network device on the main link.

[00342] For example, when the first terminal device detects the LP-WUS and the indication information carried on the LP-WUS indicates that it should monitor, on the first carrier, the PDCCH of the second network device, the first terminal device enables a core circuit to operate on a core link and monitors, on the first carrier, the PDCCH of the second network device through the core link.

[00343] In some modalities, LP-WUS indicates alternative Petition 870250109410, dated 11 / 28 / 2025, pp. 73 / 105 70 / 83 specifically monitors, on the second carrier, a PDCCH originating from the first network device. The frequency band of the second carrier includes the first frequency position. That is, PDCCH monitoring is also configured on the second carrier. This can be understood as a carrier aggregation (CA) configuration for the first terminal device, and the first terminal device performs PDCCH monitoring on both the first and second carriers.

[00344] The LP-WUS is described below using two examples (Example 1 and Example 2).

[00345] Example 1: The LP-WUS includes an identifier for the first terminal device and does not include carrier indication information. The carrier indication information includes the fifth and sixth indications. In this case, the LP-WUS indicates the first terminal device to perform PDCCH monitoring on the first and second carriers.

[00346] Example 2: The LP-WUS includes fifth and sixth indication information. The fifth indication information indicates which terminal device should monitor, on the first carrier, the PDCCH coming from the second network device. The sixth indication information indicates which terminal device should monitor, on the second carrier, the PDCCH coming from the first network device. In this case, the first network device can control the first terminal device to perform PDCCH monitoring on a specific carrier. This is more flexible and efficient.

[00347] For example, the LP-WUS includes a UE ID, a first bit, and a second bit. The UE ID represents the identifier of the first terminal device.

[00348] Specifically, when the first bit is 1, it indicates that the Petition 870250109410, dated 11 / 28 / 2025, pp. 74 / 105 71 / 83 fifth indication information indicates the first terminal device to monitor, on the first carrier, the PDCCH of the second network device. Alternatively, conversely, when the first bit is 0, it indicates that the fifth indication information indicates the first terminal device to monitor, on the first carrier, the PDCCH of the second network device.

[00349] Similarly, when the second bit is 1, it indicates that the sixth indication information points to the first terminal device to monitor, on the second carrier, the PDCCH of the first network device. Conversely, when the second bit is 0, it indicates that the sixth indication information points to the first terminal device to monitor, on the second carrier, the PDCCH of the first network device.

[00350] In this embodiment of the present application, the phrase the fifth indication information indicates the first terminal device to monitor, on the first carrier, the PDCCH of the second network device can be replaced by the fifth indication information indicates whether the first terminal device monitors, on the first carrier, the PDCCH of the second network device.

[00351] The phrase "The sixth indication information indicates the first terminal device to monitor, on the second carrier, the PDCCH of the first network device" can be replaced by "The sixth indication information indicates whether the first terminal device monitors, on the second carrier, the PDCCH of the first network device."

[00352] For example, the LP-WUS includes a UE ID, a first bit, and a second bit. The UE ID represents the identifier of the first terminal device.

[00353] Specifically, when the first bit is 1, it indicates that the fifth piece of information indicates the first terminal device. Petition 870250109410, dated 11 / 28 / 2025, pp. 75 / 105 72 / 83 which should monitor, on the first carrier, the PDCCH of the second network device. On the other hand, when the first bit is 0, it indicates that the fifth piece of information indicates that the first terminal device should not monitor, on the first carrier, the PDCCH of the second network device.

[00354] Similarly, when the second bit is 1, it indicates that the sixth piece of information indicates that the first terminal device is monitoring, on the second carrier, the PDCCH of the first network device. On the other hand, when the second bit is 0, it indicates that the sixth piece of information indicates that the first terminal device is not monitoring, on the second carrier, the PDCCH of the first network device.

[00355] In some embodiments, as shown in Figures 9 and 10, after performing S902, the first terminal device also performs S904.

[00356] S904: The first terminal device monitors, on the second carrier, the PDCCH of the first network device based on the detected LPWUS.

[00357] For example, when detecting the LP-WUS, the first terminal device enables a main circuit to operate on a main link and monitors, on the second carrier, the PDCCH of the first network device on the main link.

[00358] For example, when the first terminal device detects the LP-WUS and the indication information carried on the LP-WUS indicates that the PDCCH of the first network device should be monitored on the second carrier, the first terminal device enables a core circuit to operate on a core link and monitors the PDCCH of the first network device on the second carrier through the core link.

[00359] It should be noted that, in this modality of the present Petition 870250109410, dated 11 / 28 / 2025, pp. 76 / 105 73 / 83 request, the LP-WUS indicates at least the identifier of the first terminal device. The identifier of the first terminal device can be a radio network temporary identifier (RNTI), for example, a cell radio network temporary identifier (C-RNTI), or an RNTI configured for the LP-WUS, or an RNTI associated with the LP-WUS.

[00360] The above mainly describes the solutions provided in the embodiments of this application, from the perspective of the interaction between network elements. Correspondingly, an embodiment of this application further provides a communication device. The communication device may be the network element in the embodiment of the method above, a device that includes the network element above, or a component that can be used in a network element. It should be understood that, to implement the above functions, the communication device includes a hardware structure and / or a software module to perform a corresponding function. One skilled in the art should readily perceive that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed in this descriptive report, this application can be implemented by hardware or by a combination of hardware and software.Whether a function is performed by hardware or by software-controlled hardware depends on the specific applications and design constraints of the technical solutions. A person skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[00361] For example, Figure 11 is a diagram of the structure of a communication device according to an embodiment of the present application. Petition 870250109410, dated 11 / 28 / 2025, pp. 77 / 105 74 / 83

[00362] For example, the communication device may be a first terminal device, or it may be a chip (system) or other component or part located in the first terminal device.

[00363] For example, the communication device may be a first network device, or it may be a chip (system) or other component or part located in the first network device.

[00364] For example, the communication device may be a second network device, or it may be a chip (system) or other component or part located in the second network device.

[00365] As shown in Figure 11, the communication device 1100 may include a processor 1101. Optionally, the communication device 1100 may also include a memory 1102 and / or a transceiver 1103. The processor 1101 is coupled to the memory 1102 and the transceiver 1103, for example, may be connected via a communication bus.

[00366] The components of the 1100 communication device are described in detail below with reference to Figure 11.

[00367] Processor 1101 is a control center of communication apparatus 1100 and may be a single processor or a generic term for multiple processing elements. For example, processor 1101 may be one or more central processing units (central processing units, CPUs), an application-specific integrated circuit (application-specific integrated circuit, ASIC), or may be configured as one or more integrated circuits implementing embodiments of the present application, for example, one or more digital signal processors (digital signal processors, DSPs) or one or more field-programmable gate arrays (field-programmable gate arrays, FPGAs).

[00368] Optionally, the 1101 processor can perform various functions of the 1100 communication device, by making or executing a Petition 870250109410, dated 11 / 28 / 2025, pp. 78 / 105 75 / 83 software program stored in memory 1102 and accessing data stored in memory 1102.

[00369] In a specific implementation, in one embodiment, the 1101 processor may include one or more CPUs, for example, a CPU 0 and a CPU 1 shown in Figure 11.

[00370] In a specific implementation, in one embodiment, the communication apparatus 1100 may alternatively include a plurality of processors, for example, processor 1101 and processor 1104 shown in Figure 11. Each of the processors may be a single-core processor (single CPU) or a multi-core processor (multi-CPU). The processor described herein may be one or more devices, circuits and / or processing cores configured to process data (e.g., computer program instructions).

[00371] Memory 1102 is configured to store a software program for implementing the solutions of this application, and processor 1101 controls the execution of the software program. For a specific implementation, refer to the previous method embodiments. Details will not be described again here.

[00372] Optionally, memory 1102 may be read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, or random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other compact disc storage device, optical disc storage device Petition 870250109410, dated 11 / 28 / 2025, pp. 79 / 105 76 / 83 co (including a compact disc, a laser disc, an optical disc, a digital versatile disc, a Blu-ray disc or similar), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the expected program code in the form of instructions or data structure and that can be accessed by a computer. However, this is not limited to these cases. Memory 1102 may be integrated into processor 1101 or may exist independently, being coupled to processor 1101 by means of an interface circuit (not shown in Figure 11) of communication apparatus 1100. This is not specifically limited in the embodiments of the present application.

[00373] Transceiver 1103 is configured to communicate with another communication device.

[00374] For example, communication device 1100 is a first terminal device, and transceiver 1103 can be configured to communicate with a first network device or a second network device.

[00375] For example, communication device 1100 is a first network device, and transceiver 1103 can be configured to communicate with a first terminal device or a second network device.

[00376] For example, communication device 1100 is a second network device, and transceiver 1103 can be configured to communicate with a first terminal device or with a first network device.

[00377] Optionally, the 1103 transceiver may include a receiver and a transmitter (not shown separately in Figure 11). The receiver is configured to implement a reception function and the transmitter is configured to implement a reception function. Petition 870250109410, dated 11 / 28 / 2025, pages 80 / 105 77 / 83 guarded to implement a sending function.

[00378] Optionally, the transceiver 1103 may be integrated into the processor 1101, or it may exist independently and be coupled to the processor 1101 via an interface circuit (not shown in Figure 11) of the communication apparatus 1100. This is not specifically limited in the embodiments of the present application.

[00379] It is easy to understand that the structure of the communication apparatus 1100 shown in Figure 11 does not constitute a limitation for the communication apparatus. A real communication apparatus may include more or fewer components than those shown in the figure, or combine some components, or have a different arrangement of components.

[00380] Furthermore, for the technical effects of the 1100 communication device, refer to the technical effects of the method described in the previous embodiments. The details will not be described again here.

[00381] It should be understood that, in the embodiments of the present application, the processor may be a central processing unit (CPU), or it may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate logic device or transistor, a discrete hardware component or similar. The general-purpose processor may be a microprocessor, or it may be any conventional or similar processor.

[00382] It may be understood that the memory in the modalities of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Petition 870250109410, dated 11 / 28 / 2025, pp. 81 / 105 78 / 83 Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EPROM), or flash memory. Volatile memory can be random access memory (RAM), used as an external cache.By way of example, rather than a limiting description, random access memory (RAM) can be used in many forms, for example, static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct Rambus random access memory (DR RAM).

[00383] Optionally, an embodiment of the present application further provides a computer program product bearing computer instructions. When the computer instructions are executed on a computer, the computer is caused to perform the method described in the previous embodiment.

[00384] Optionally, an embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores computer instructions. When the computer instructions are executed on a computer, the computer is led to perform the method described in the previous embodiment. Petition 870250109410, dated 11 / 28 / 2025, pp. 82 / 105 79 / 83

[00385] Optionally, an embodiment of the present application further provides a chip, including a processing circuit and a transceiver circuit. The processing circuit and the transceiver circuit are configured to implement the method described in the previous embodiment. The processing circuit is configured to perform a processing action in a corresponding method, and the transceiver circuit is configured to perform a receive / send action in a corresponding method.

[00386] All or some of the embodiments described above may be implemented using software, hardware (e.g., circuit), firmware, or any combination thereof. When software is used to implement the embodiments, the embodiments described above may be implemented wholly or partially in the form of a computer program product. The computer program product includes one or more computer instructions or programs. When the computer instructions or programs are loaded and executed on the computer, the procedure or functions according to the embodiments of this application are generated wholly or partially. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.Computer instructions can be stored on a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one site, computer, server, or data center to another site, computer, server, or data center via a wired connection (e.g., infrared, radio, microwave, or similar). The computer-readable storage medium can be any usable media accessible by a computer or device. Petition 870250109410, dated 11 / 28 / 2025, pp. 83 / 105 80 / 83 vo data storage device, such as a server or data center, that integrates one or more usable media. The usable media can be magnetic media (e.g., a floppy disk, a hard disk, or magnetic tape), optical media (e.g., a DVD), or semiconductor media. The semiconductor media can be a solid-state drive.

[00387] It should be understood that the term and / or in this descriptive report describes only an association relationship between associated objects and indicates that three relationships can exist. For example, A and / or B can indicate the following three cases: only A exists, A and B exist, and only B exists, where A and B can be singular or plural. Additionally, the character / in this descriptive report generally indicates an OR relationship between associated objects, but it can also indicate an AND / OR relationship. For more details, see the context.

[00388] In this request, at least one means one or more, and a plurality of means two or more. At least one of the following items (pieces) or a similar expression refers to any combination of these items, including any combination of items (pieces) in the singular or plural. For example, at least one of a, b, or c may indicate: a, b, c, ab, ac, bc, or abc, where a, b, and c may be singular or plural.

[00389] It should be understood that the sequence numbers of the processes described above do not represent the execution sequences in different modes of this request. The execution sequences of the processes should be determined according to the functions and internal logic of the processes, and should not be interpreted as any limitation to the processes implementing the modes of this request.

[00390] One skilled in the art may be aware that, in combination with the examples described in the embodiments disclosed in this Petition 870250109410, dated 11 / 28 / 2025, pp. 84 / 105 81 / 83 descriptive report, the units and steps of the algorithm can be implemented by electronic hardware or by a combination of software and electronic hardware. Whether the functions are performed by hardware or software depends on the specific applications and design constraints of the technical solutions. A person skilled in the art may use different methods to implement the functions described for each specific application, but it should not be considered that the implementation is beyond the scope of the present application.

[00391] Anyone skilled in the art will clearly understand that, for the purposes of concise and practical description, for details on the operating process of the aforementioned system, apparatus and unit, please refer to the corresponding process in the previous method embodiments. The details will not be described again here.

[00392] In the various embodiments presented in this application, it should be understood that the system, apparatus, and method described herein may be implemented in other ways. For example, the embodiments of apparatus described are merely illustrative. For example, the division into units is merely a logical functional division and may be another division in a real implementation. For example, a plurality of units or components may be combined or integrated into another system, or some functionalities may be omitted or not performed. Furthermore, the mutual couplings, direct couplings, or communication connections presented herein may be implemented by means of interfaces. Indirect couplings or communication connections between the apparatuses or units may be implemented electronically, mechanically, or otherwise.

[00393] The units described as separate parts may or may not be physically separate, and the parts displayed as units Petition 870250109410, dated 11 / 28 / 2025, pages 85 / 105 82 / 83 may or may not be physical units, may be located in a single location, or may be distributed across multiple network units. Some or all units may be selected based on actual needs to achieve the objectives of the modalities.

[00394] In addition, the functional units in the embodiments of this application may be integrated into a single processing unit, each of the units may exist physically alone, or two or more units may be integrated into a single unit.

[00395] When functions are implemented in the form of a functional software unit and sold or used as a stand-alone product, they may be stored on a computer-readable storage medium. Based on this understanding, the technical solutions of the present application, essentially, or the part that contributes to the current technology, or some of the technical solutions, may be implemented in the form of a software product. The software product is stored on a storage medium and includes various instructions to indicate to a computing device (which may be a personal computer, a server, or a communication device) the performance of all or part of the steps of the methods described in the embodiments of the present application.The aforementioned storage medium includes any media that can store program code, such as a USB flash drive, a removable hard drive, read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disc.

[00396] The preceding descriptions are merely specific implementations of the present application, but are not intended to limit the scope of protection of the present application. Any variation or substitution easily identifiable by a person skilled in the art, Petition 870250109410, dated 11 / 28 / 2025, pages 86 / 105 83 / 83 within the technical scope disclosed in this application, will be within the scope of protection of this application. Therefore, the scope of protection of this application will be subject to the scope of protection of the claims.

Claims

1. A communication method, applied to a first terminal device or to a chip of the first terminal device, characterized in that the first terminal device is in a radio resource control connected state (RRC), and the method comprises: determining a first frequency position; and monitoring, at the first frequency position, a low-power activation signal (LP-WUS) from a first network device, wherein the LP-WUS indicates monitoring, on a first carrier, a physical downlink control channel (PDCCH) of a second network device, the first frequency position being outside the frequency band of the first carrier, and the first network device being the same as or different from the second network device.

2. A method according to claim 1, characterized in that the first frequency position is in a frequency band of a second carrier, and the second carrier is different from the first carrier.

3. Method, according to claim 2, characterized in that the LP-WUS also indicates monitoring, on the second carrier, a PDCCH of the first network device.

4. Method, according to claim 3, characterized in that the LP-WUS comprises an identifier of the first terminal device, wherein the LP-WUS indicates the first terminal device to perform PDCCH monitoring on the first carrier and on the second carrier.

5. Method, according to claim 3, characterized in Petition 870250109430, dated 11 / 28 / 2025, page 5 / 11 2 / 3 by the fact that the LP-WUS comprises fifth indication information and sixth indication information, wherein the fifth indication information indicates the first terminal device to perform PDCCH monitoring on the first carrier, and the sixth indication information indicates the first terminal device to perform PDCCH monitoring on the second carrier.

6. A communication method, applied to a first network device or to a chip of the first network device, characterized in that the method comprises: determining a first frequency position; and sending, at the first frequency position, a low-power activation signal (LP-WUS) to a first terminal device, wherein the first terminal device is in a connected state (RRC) of radio resource control, the LP-WUS indicates to monitor, on a first carrier, a physical downlink control channel (PDCCH) of a second network device, the first frequency position is outside a frequency band of the first carrier, and the first network device is the same as or different from the second network device.

7. Terminal device, comprising a processor and a memory, characterized in that the processor is coupled to the memory, the memory stores program instructions, and when the program instructions stored in the memory are executed by the processor, the terminal device is caused to perform the method as defined in any one of claims 1 to 5.

8. Network device, characterized in that it comprises a processor and a memory, wherein the processor is coupled to the memory, the memory stores program instructions and, when the program instructions stored in the memory are executed by the processor, the network device is caused to perform the method as defined in claim 6.

9. A chip, characterized in that it comprises a processor and a memory coupled to the processor, wherein the memory stores a computer program, the chip is located in a terminal device, and when the processor executes the computer program, the terminal device is caused to perform the method as defined in any one of claims 1 to 5.

10. A chip, characterized in that it comprises a processor and a memory coupled to the processor, wherein the memory stores a computer program, the chip is located in a network device, and when the processor executes the computer program, the network device is caused to perform the method as defined in claim 6.

11. Computer-readable storage medium that stores a computer program or instructions, characterized in that when the computer program or instructions are executed on a terminal device, the terminal device is caused to perform the method as defined in claim 5.

12. Computer-readable storage medium that stores a computer program or instructions, characterized in that when the computer program or instructions are executed on a network device, the network device is caused to perform the method as defined in claim 6.

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