Communication method and apparatus

Abstract

A communication method and apparatus, applied to the technical field of communications, for use in improving communication performance. The method comprises: a first terminal device determining a first paging sequence; and receiving a paging message on the basis of the first paging sequence, wherein the paging message is carried by a first resource, the first resource is used for carrying at least one group of paging sequences, each group of paging sequences among the at least one group of paging sequences comprise at least one paging sequence, and the first paging sequence is one of the at least one paging sequence comprised in the at least one group of paging sequences, or first paging sequences are one group of paging sequences among the at least one group of paging sequences.

Description

A communication method and apparatus

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410996239.2, filed on July 22, 2024, entitled "A Communication Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0004] With the development of mobile communication technology, wireless services are becoming increasingly diverse and abundant, and users' demands for communication performance are constantly rising. Therefore, how to improve communication performance is a current research direction. Summary of the Invention

[0005] This application provides a communication method and apparatus to improve communication performance.

[0006] In a first aspect, this application provides a communication method applicable to a first terminal device, for example, which can be executed by the first terminal device or by a device within the first terminal device. Exemplarily, a device within the first terminal device may refer to a component (e.g., a processor, circuit, chip, or chip system) within the first terminal device, or it may refer to a logic module or software capable of implementing all or part of the functions of the first terminal device.

[0007] Taking a first terminal device as the executing entity as an example, the method may include: the first terminal device determining a first paging sequence; and receiving a paging message according to the first paging sequence, wherein the paging message is carried by a first resource, the first resource being used to carry at least one set of paging sequences, each of the at least one set of paging sequences including at least one paging sequence. Wherein, the first paging sequence is one of the at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is one set of paging sequences in the at least one set of paging sequences.

[0008] Optionally, the at least one paging sequence is used to page the first terminal device. For example, the at least one paging sequence is used to page the first terminal device within multiple cell boundaries.

[0009] In the above embodiments of this application, the first resource can be used to carry at least one paging sequence, which can simplify the resource configuration process and improve communication performance.

[0010] In current paging mechanisms, terminal devices need to blindly check for the presence of down control information (DCI) for scheduling paging messages. After detecting DCI, they then check whether their own identification information is included in the physical downlink shared channel (PDSCH). If their own identification information is found in the PDSCH, they determine that they are being paging. In the above embodiments of this application, the first terminal device receives the paging message according to the first paging sequence. This allows the first terminal device to determine that it is being paging by checking the paging message mapped from the first paging sequence, eliminating the need for multiple checks. This simplifies the paging mechanism, reduces the power consumption of the terminal device, and improves communication performance.

[0011] In one possible implementation, the first terminal device may also receive a second message from the first network device, the second message including at least one of the following: a first identifier for indicating information of at least one set of paging sequences, or the first resource; wherein the first identifier is used to identify the first terminal device in a plurality of cells, the plurality of cells including the cell corresponding to the first network device.

[0012] Through the above implementation, at least one of the first identifier, paging sequence, or first resource can be configured by the first network device. In this way, network devices corresponding to multiple cells can page the first terminal device according to the first identifier and the first resource, which can simplify mobility management and updates, reduce the power consumption of network devices and terminal devices, and thus improve communication performance.

[0013] In one possible implementation, the first resource is used to carry the at least one set of paging sequences, which can be replaced by: the first resource being used to carry the at least one set of paging sequences in multiple cells.

[0014] With the above implementation, the first resource is used to carry the at least one paging sequence in multiple cells. In this way, the network devices corresponding to the multiple cells can page the first terminal device through the first resource and the at least one paging sequence without frequent configuration of the resource carrying the paging sequence. This simplifies mobility management and updates, helps reduce the power consumption of terminal devices and network devices, and thus improves communication performance.

[0015] Secondly, this application provides a communication method applicable to a first terminal device, for example, which can be executed by the first terminal device or by a device within the first terminal device. Exemplarily, a device within the first terminal device can refer to a component (e.g., a processor, circuit, chip, or chip system) or logic modules or software capable of implementing all or part of the functions of the first terminal device.

[0016] Taking a first terminal device as the executing entity as an example, the method may include: the first terminal device receiving a second message from a first network device, the second message including at least one of the following: a first identifier, used to indicate information of at least one set of paging sequences, or a first resource; wherein, the first identifier is used to identify the first terminal device in multiple cells, each of the at least one set of paging sequences includes at least one paging sequence, the first resource is used to carry the at least one set of paging sequences in the multiple cells, the multiple cells including the cell corresponding to the first network device; and receiving paging messages from the network device corresponding to the multiple cells according to the second message.

[0017] Optionally, the at least one paging sequence is used to page the first terminal device. For example, the at least one paging sequence is used to page the first terminal device within multiple cell boundaries.

[0018] In one possible implementation, when receiving paging messages from network devices corresponding to the plurality of cells according to the second message, the first terminal device determines a first paging sequence, wherein the first paging sequence is one of at least one paging sequence included in the at least one set of paging sequences, or the first paging sequence is a set of paging sequences in the at least one set of paging sequences; and receives paging messages according to the first paging sequence, wherein the paging messages are carried by a first resource.

[0019] The technical effects achievable by the second aspect and any of its possible implementations are described in the same manner as the technical effects achievable by the first aspect and any of its possible implementations, and will not be repeated here.

[0020] Based on the first or second aspect above, in one possible implementation, the first terminal device receiving the paging message according to the first paging sequence can be replaced by: the first terminal device checking the paging message according to the first paging sequence; receiving the paging message according to the check result, wherein the check result indicates that the paging message is mapped from the first paging sequence.

[0021] With the above implementation, the first terminal device can determine whether it has been paged by checking whether the paging message is mapped from the first paging sequence, without having to check multiple times. This simplifies the paging mechanism and helps reduce the power consumption of the terminal device.

[0022] Based on the first or second aspect above, in one possible implementation, the paging message is obtained by mapping the first paging sequence to the first resource.

[0023] Based on the first or second aspect described above, in one possible implementation, the first identifier is further used to page the first terminal device within multiple cells.

[0024] Based on the first or second aspect above, in one possible implementation, each paging sequence in at least one paging sequence included in the at least one set of paging sequences is used to page the first terminal device in multiple cells; or, each set of paging sequences in the at least one set of paging sequences is used to page the first terminal device in multiple cells.

[0025] With the above implementation, each paging sequence in at least one set of paging sequences can independently page the first terminal device, consuming fewer network resources. Alternatively, each paging sequence in at least one set of paging sequences can page the first terminal device, and a single paging sequence can carry more information.

[0026] Based on the first or second aspect described above, in one possible implementation, the at least one set of paging sequences is generated based on a W sequence, which has low ambiguity, thus making the paging sequences obtained based on the W sequence more robust. A larger number of paging sequences can be obtained based on the W sequence, which is beneficial for expanding sequence resources and thus enabling services to be provided to more users.

[0027] Based on the first or second aspect above, in one possible implementation, the first paging sequence is generated based on a W sequence; or, the first paging sequence is generated based on a set of W sequences, the set of W sequences including at least one sequence.

[0028] Based on the first or second aspect described above, in one possible implementation, the highest-order term of the W sequence is a quadratic term, a cubic term, or a quartic term. Generally, the larger the highest-order term of the W sequence, the more terms the polynomial used in the W sequence has, and the more different sequences are generated based on the W sequence.

[0029] Based on the first or second aspect described above, in one possible implementation, the at least one set of paging sequences includes multiple paging sequences, and the highest-order term used when generating the multiple paging sequences based on the W sequence is the same. The correlation between multiple paging sequences generated using the same highest-order term is better than the correlation between multiple paging sequences generated using different highest-order terms, which is beneficial for obtaining better detection performance.

[0030] Based on the above first aspect or second aspect, in a possible implementation, the at least one set of paging sequences includes multiple paging sequences, and the second highest terms used when generating the multiple paging sequences based on the W sequence are different, so that the first terminal device can detect which paging sequence the received paging sequence is through the correlation position in the time domain or the frequency domain correlation peak position after the inverse fast Fourier transform (IFFT), which can reduce the detection complexity. And / or, the first-order terms used when generating the multiple paging sequences based on the W sequence are different, so that the first terminal device can detect which paging sequence the received paging sequence is through the correlation position in the time domain or the time domain correlation peak position after IFFT, which can reduce the detection complexity.

[0031] Based on the above first aspect or second aspect, in a possible implementation, the W sequence consists of the generation length of the sequence and the length of the sequence within one generation period.

[0032] Based on the above first aspect or second aspect, in a possible implementation, the W sequence may satisfy the following formula:

[0033] p(n) = p

[0037] , , , ,

[0038] , n d +p d-1 n d-1 +…+p1n + p0; <00001,20>

[0034] Where, x(n) is the W sequence, n is an integer greater than 0 and less than or equal to N, N is the generation length of the sequence, P is the length of the sequence within one generation period, p [[ID=,22]] i is a non-zero integer, 1 < i ≤ d, d is an integer greater than 1, p1 and p0 are both constants.

[0035] Based on the above first aspect or second aspect, in a possible implementation, if d is 2, the W sequence may be [[ID=2,9]]

[0036] Or, if d is 3, the W sequence may be

[0037] Or, if d is 4, the W sequence may be

[0038] Where, α is an integer greater than or equal to 0 and less than or equal to (P - 1), μ is an integer greater than or equal to 0 and less than or equal to (P - 1), γ is an integer greater than or equal to 0 and less than or equal to (P - 1), τ is an integer greater than or equal to 0 and less than or equal to (Q - 1), Q is the number of cyclic shifts in the time domain, and θ is a constant.

[0039] Based on the first or second aspect described above, in one possible implementation, the length of the sequence within a generation period is a prime number. That is, the value of P can be a prime number. Compared to a composite number, a prime number is not divisible by any other natural number, which allows for the generation of more sequences with good autocorrelation and cross-correlation when d is the same and the sequence length meets certain conditions. This enables services to be provided to more users, thus expanding capacity.

[0040] Based on the first or second aspect above, in one possible implementation, the first terminal device may further receive a first message, the first message being used to indicate relevant parameters of the W sequence, the relevant reference including at least one of the following: the mapping length of the sequence, the generation length of the sequence, d, Q, α, μ, γ, τ, or θ.

[0041] Based on the first or second aspect above, in one possible implementation, the at least one set of paging sequences includes the first paging sequence and the second paging sequence, wherein the information indicated by the first paging sequence is different from the information indicated by the second paging sequence.

[0042] Based on the first or second aspect above, in one possible implementation, the at least one set of paging sequences includes the first paging sequence and the second paging sequence, wherein the resources carrying the first paging sequence are the same as the resources carrying the second paging sequence, or the resources carrying the first paging sequence are different from the resources carrying the second paging sequence.

[0043] Based on the first or second aspect above, in one possible implementation, the first paging sequence is used for at least one of the following: paging at least one terminal device, data transmission, notification of system information updates, or control information transmission, wherein the at least one terminal device includes the first terminal device.

[0044] With the above implementation methods, paging sequences can be used in a variety of ways and can be applied to a wide range of communication scenarios.

[0045] Based on the first or second aspect described above, in one possible implementation, the first terminal device supports dedicated paging. For example, different terminal devices may use different paging sequences.

[0046] Based on the first or second aspect described above, in one possible implementation, the first identifier of the first terminal device is determined by the identifier of the first cell and the radio network temporary identity (RNTI) of the first terminal device; or, the first identifier of the first terminal device is determined by the identifier of the first region, the identifier of the first cell, and the RNTI of the first terminal device; wherein, the first identifier is used to identify the first terminal device within multiple cells, the first region is the area covered by the network device corresponding to the multiple cells, and the first cell belongs to the multiple cells.

[0047] With the above implementation, the first identifier of the first terminal device in multiple cells can be obtained by extending the RNTI of the first terminal device, which is easy to implement. The length of the first identifier has no impact on the length of the identifiers subsequently assigned to other terminal devices in the same multiple cells.

[0048] Based on the first or second aspect above, in one possible implementation, the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by a first identifier; and / or, the identifier of at least one resource is determined by the first identifier, the at least one resource being used to carry at least one paging sequence included in the at least one set of paging sequences; wherein, the first identifier is used to identify the first terminal device within multiple cells.

[0049] Through the above implementation, there is an association between the first identifier and the identifier of at least one paging sequence and the identifier of at least one resource used to carry the at least one paging sequence. In this way, the first terminal device can determine the identifier of the paging sequence it can use and the resource corresponding to the paging sequence based on the first identifier, without the need for network device configuration, which can reduce signaling interaction.

[0050] Based on the first or second aspect above, in one possible implementation, the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by a first identifier, which can be replaced by: the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by the first identifier and first information, wherein the first information includes the number of paging sequences included in the at least one set of paging sequences and / or a first quantity, wherein the first quantity is the number of paging sequences that support transmission within the plurality of cells.

[0051] Based on the first or second aspect above, in one possible implementation, the identifier of the at least one resource is determined by a first identifier, which can be replaced by: the identifier of the at least one resource is determined by the first identifier and second information, wherein the second information includes the quantity of the at least one resource and / or a second quantity, wherein the second quantity is the quantity of resources used to carry paging sequences transmitted in the plurality of cells.

[0052] Based on the first or second aspect above, in one possible implementation, the receiving method of the paging message is determined by a first identifier, wherein the receiving method is to receive the paging message using a synchronous mode or to receive the paging message using an asynchronous mode, wherein the first identifier is used to identify the first terminal device in multiple cells.

[0053] Through the above implementation, there is a correlation between the first identifier and the paging message receiving method, so that the first terminal device can determine the paging message receiving method based on the first identifier.

[0054] Based on the first or second aspect described above, in one possible implementation, the first terminal device may also receive a third message, which is used to instruct the first terminal device to receive the paging message in synchronous mode, or the third message is used to instruct the first terminal device to receive the paging message in asynchronous mode.

[0055] Based on the first or second aspect above, in one possible implementation, the frequency domain resources occupied by the first resource in different time units may be the same, or the frequency domain resources occupied by the first resource in different time units may be different; the first resource may be continuous in the frequency domain, or the first resource may be discontinuous in the frequency domain; the first resource may be continuous in the time domain, or the first resource may be discontinuous in the time domain.

[0056] Based on the first or second aspect described above, in one possible implementation, the first resource is consistent across multiple cells. For example, the first resource is configured identically across multiple cells, or the first resource is shared by multiple cells, or the first resource remains unchanged across multiple cells. This first resource can be configured for use by at least one terminal device, which can communicate with the network devices corresponding to the multiple cells through the first resource.

[0057] Thirdly, this application provides a communication method applicable to a first network device, for example, which can be executed by the first network device or by a device within the first network device. Exemplarily, a device within the first network device may refer to a component of the first network device (e.g., a processor, circuit, chip, or chip system), or it may refer to a logic module or software capable of implementing all or part of the functions of the first network device.

[0058] Taking a first network device as the executing entity as an example, the method may include: the first network device determining a first paging sequence; and sending a paging message to a first terminal device according to the first paging sequence, wherein the paging message is carried by a first resource, the first resource being used to carry the at least one set of paging sequences, and each set of paging sequences in the at least one set of paging sequences includes at least one paging sequence. Wherein, the first paging sequence is one of the at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is one set of paging sequences in the at least one set of paging sequences.

[0059] Optionally, the at least one paging sequence is used to page the first terminal device. For example, the at least one paging sequence is used to page the first terminal device within multiple cell boundaries.

[0060] In one possible implementation, the first network device may also send a second message to the first terminal device, the second message including at least one of the following: a first identifier, used to indicate information of the at least one set of paging sequences, or the first resource; wherein the first identifier is used to identify the first terminal device in a plurality of cells, the plurality of cells including the cell corresponding to the first network device.

[0061] In one possible implementation, the first resource is used to carry the at least one set of paging sequences, which can be replaced by: the first resource being used to carry the at least one set of paging sequences in multiple cells.

[0062] Fourthly, this application provides a communication method applicable to a first network device, for example, which can be executed by the first network device or by a device within the first network device. Exemplarily, a device within the first network device can refer to a component of the first network device (e.g., a processor, circuit, chip, or chip system), or it can refer to a logic module or software capable of implementing all or part of the functions of the first network device.

[0063] Taking a first network device as the executing entity as an example, the method may include: the first network device sending a second message to a first terminal device, the second message including at least one of the following: a first identifier, used to indicate information of at least one set of paging sequences, or a first resource; wherein, the first identifier is used to identify the first terminal device in multiple cells, each of the at least one set of paging sequences includes at least one paging sequence, the first resource is used to carry the at least one set of paging sequences in the multiple cells, the multiple cells including the cell corresponding to the first network device; and sending a paging message to the first terminal device according to the second message.

[0064] Optionally, the at least one paging sequence is used to page the first terminal device. For example, the at least one paging sequence is used to page the first terminal device within multiple cell boundaries.

[0065] In one possible implementation, when sending a paging message to the first terminal device according to the second message, the first network device determines a first paging sequence, wherein the first paging sequence is one of at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is a set of paging sequences in the at least one set of paging sequences; and sends a paging message to the first terminal device according to the first paging sequence, wherein the paging message is carried by the first resource.

[0066] Based on the third or fourth aspect above, in one possible implementation, the paging message is obtained by mapping the first paging sequence to the first resource.

[0067] Based on the third or fourth aspect above, in one possible implementation, the first identifier is further used to page the first terminal device in multiple cells.

[0068] Based on the third or fourth aspect above, in one possible implementation, each paging sequence in at least one paging sequence included in the at least one set of paging sequences is used to page the first terminal device in multiple cells; or, each set of paging sequences in the at least one set of paging sequences is used to page the first terminal device in multiple cells.

[0069] Based on the third or fourth aspect above, in one possible implementation, the at least one set of paging sequences is generated based on the W sequence.

[0070] Based on the third or fourth aspect above, in one possible implementation, the first paging sequence is generated based on a W sequence; or, the first paging sequence is generated based on a set of W sequences, wherein the set of W sequences includes at least one sequence.

[0071] Based on the above third aspect or fourth aspect, in a possible implementation, the highest-degree term of the W sequence is a quadratic term, or the highest-degree term of the W sequence is a cubic term, or the highest-degree term of the W sequence is a quartic term.

[0072] Based on the above third aspect or fourth aspect, in a possible implementation, the at least one set of paging sequences includes multiple paging sequences, and the highest-degree terms used when generating the multiple paging sequences based on the W sequence are the same.

[0073] Based on the above third aspect or fourth aspect, in a possible implementation, the at least one set of paging sequences includes multiple paging sequences, the sub-highest-degree terms used when generating the multiple paging sequences based on the W sequence are different, and / or the first-degree terms used when generating the multiple paging sequences based on the W sequence are different.

[0074] Based on the above third aspect or fourth aspect, in a possible implementation, the W sequence consists of the generation length of the sequence and the length of the sequence within one generation period.

[0075] Based on the above third aspect or fourth aspect, in a possible implementation, the W sequence satisfies the following formula:

[0076] p(n) = p d n d +p d-1 n d-1 +…+p1n + p0;

[0077] Where x(n) is the W sequence, n is an integer greater than 0 and less than or equal to N, N is the generation length of the sequence, P is the length of the sequence within one generation period, p i is a non-zero integer, 1 < i ≤ d, d is an integer greater than 1, and both p1 and p0 are constants.

[0078] Based on the above third aspect or fourth aspect, in a possible implementation, if d = 2, the W sequence can be

[0079] Or, if d = 3, the W sequence can be

[0080] Or, if d = 4, the W sequence can be

[0081] Where α is an integer greater than or equal to 0 and less than or equal to (P-1), μ is an integer greater than or equal to 0 and less than or equal to (P-1), γ is an integer greater than or equal to 0 and less than or equal to (P-1), τ is an integer greater than or equal to 0 and less than or equal to (Q-1), Q is the number of cyclic shifts in the time domain, and θ is a constant.

[0082] Based on the third or fourth aspect mentioned above, in one possible implementation, the length of the sequence within a generation period is a prime number.

[0083] Based on the third or fourth aspect above, in one possible implementation, the first network device may further send a first message to the first terminal device, the first message being used to indicate relevant parameters of the W sequence, the relevant reference including at least one of the following: the mapping length of the sequence, the generation length of the sequence, d, Q, α, μ, γ, τ, or θ.

[0084] Based on the third or fourth aspect above, in one possible implementation, the at least one set of paging sequences includes a first paging sequence and a second paging sequence, wherein the information indicated by the first paging sequence is different from the information indicated by the second paging sequence.

[0085] Based on the third or fourth aspect above, in one possible implementation, the first paging sequence is used for at least one of the following: paging at least one terminal device, data transmission, notification of system information updates, or control information transmission, wherein the at least one terminal device includes the first terminal device.

[0086] Based on the third or fourth aspect above, in one possible implementation, the first identifier of the first terminal device is determined by the identifier of the first cell and the RNTI of the first terminal device; or, the first identifier of the first terminal device is determined by the identifier of the first region, the identifier of the first cell, and the RNTI of the first terminal device; wherein, the first identifier is used to identify the first terminal device in multiple cells, the first region is the area covered by the network device corresponding to the multiple cells, and the first cell belongs to the multiple cells.

[0087] Based on the third or fourth aspect above, in one possible implementation, the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by a first identifier; and / or, the identifier of at least one resource is determined by the first identifier, the at least one resource being used to carry at least one paging sequence included in the at least one set of paging sequences; wherein, the first identifier is used to identify the first terminal device within multiple cells.

[0088] Based on the third or fourth aspect above, in one possible implementation, the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by a first identifier, which can be replaced by: the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by the first identifier and first information, wherein the first information includes the number of paging sequences included in the at least one set of paging sequences and / or a first quantity, wherein the first quantity is the number of paging sequences that support transmission within the plurality of cells.

[0089] Based on the third or fourth aspect above, in one possible implementation, the identifier of the at least one resource is determined by the first identifier, which can be replaced by: the identifier of the at least one resource is determined by the first identifier and second information, wherein the second information includes the quantity of the at least one resource and / or a second quantity, wherein the second quantity is the quantity of resources used to carry paging sequences transmitted in the plurality of cells.

[0090] Based on the third or fourth aspect above, in one possible implementation, the first network device may also send a third message to the first terminal device, the third message being used to instruct the first terminal device to receive the paging message in synchronous mode, or the third message being used to instruct the first terminal device to receive the paging message in asynchronous mode.

[0091] Based on the third or fourth aspect above, in one possible implementation, the frequency domain resources occupied by the first resource in different time units may be the same, or the frequency domain resources occupied by the first resource in different time units may be different; the first resource may be continuous in the frequency domain, or the first resource may be discontinuous in the frequency domain; the first resource may be continuous in the time domain, or the first resource may be discontinuous in the time domain.

[0092] Based on the third or fourth aspect mentioned above, in one possible implementation, the first resource is consistent across multiple cells.

[0093] The technical effects that can be achieved by the third or fourth aspect and any of its possible implementations mentioned above should be referred to the technical effects that can be achieved by the first or second aspect and any of its possible implementations mentioned above, and will not be repeated here.

[0094] Fifthly, this application provides a communication device that can be used to perform the methods described in the first or second aspect and any possible implementation thereof. The communication device may be, for example, a first terminal device, or a component within a first terminal device. The communication device may include modules, units, or means corresponding to the methods described in the first or second aspect and any possible implementation thereof. These modules, units, or means may be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the aforementioned functions.

[0095] In one possible implementation, the communication device may include a baseband device and a radio frequency device.

[0096] In another possible implementation, the communication device may include a processing module (sometimes also called a processing unit) and a transceiver module (sometimes also called a transceiver unit). The transceiver module is capable of both sending and receiving functions. When the transceiver module performs the sending function, it may be called a sending module (sometimes also called a sending unit), and when it performs the receiving function, it may be called a receiving module (sometimes also called a receiving unit). The sending module and the receiving module may be the same functional module, referred to as the transceiver module, which performs both sending and receiving functions; or, the sending module and the receiving module may be different functional modules, with "transceiver module" being a collective term for these functional modules.

[0097] Sixthly, this application provides a communication device that can be used to perform the methods described in the third or fourth aspect and any possible implementation thereof. The communication device may be, for example, a first network device, or a component within a first network device. The communication device may include modules, units, or means corresponding to the methods described in the third or fourth aspect and any possible implementation thereof. These modules, units, or means may be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the aforementioned functions.

[0098] In one possible implementation, the communication device may include a baseband device and a radio frequency device.

[0099] In another possible implementation, the communication device may include a processing module (sometimes also called a processing unit) and a transceiver module (sometimes also called a transceiver unit). The transceiver module is capable of both sending and receiving functions. When the transceiver module performs the sending function, it may be called a sending module (sometimes also called a sending unit), and when it performs the receiving function, it may be called a receiving module (sometimes also called a receiving unit). The sending module and the receiving module may be the same functional module, referred to as the transceiver module, which performs both sending and receiving functions; or, the sending module and the receiving module may be different functional modules, with "transceiver module" being a collective term for these functional modules.

[0100] In a seventh aspect, this application provides a communication system that may include the communication device provided in the fifth aspect above, and / or the communication device provided in the sixth aspect above.

[0101] Eighthly, this application also provides a communication device. The communication device may include one or more processors. Optionally, the communication device may further include a memory. The memory is used to store one or more computer programs or instructions. The one or more processors are used to execute the one or more computer programs or instructions stored in the memory, causing the communication device to perform the methods described in any of the first to fourth aspects and any possible implementations thereof.

[0102] Ninthly, this application also provides a communication device, comprising: a processor and an interface circuit; the interface circuit is configured to receive signals from other communication devices besides the communication device and transmit them to the processor, or to send signals from the processor to other communication devices besides the communication device. The processor is configured to implement the method described in any of the above aspects through logic circuits or by executing computer programs or instructions. The communication device may be a first terminal device as described in the first or second aspect, or a device including the first terminal device, or a device included in the first terminal device, such as a chip; or, the communication device may be a first network device as described in the third or fourth aspect, or a device including the first network device, or a device included in the first network device.

[0103] In some possible designs, when the device is a chip system, it can be composed of chips or contain chips and other discrete components.

[0104] In a tenth aspect, this application also provides a chip system comprising at least one chip and a memory, wherein the at least one chip is configured to read and execute a program stored in the memory to implement the method described in any of the first to fourth aspects and any possible implementation thereof.

[0105] Eleventhly, this application also provides a computer-readable storage medium for storing a computer program or instructions that, when executed, cause the method described in any of the first to fourth aspects and any possible implementation thereof to be implemented.

[0106] In a twelfth aspect, this application also provides a computer program product comprising a computer program or instructions that, when executed on a computer, cause the methods described in any of the first to fourth aspects and any possible implementation thereof to be implemented.

[0107] The technical effects that can be achieved by aspects five through twelfth and any of their possible implementations are described above are in accordance with the technical effects that can be achieved by any of aspects one through four and any of their possible implementations, and will not be repeated here. Attached Figure Description

[0108] Figure 1 is a schematic diagram of the network architecture of a communication system;

[0109] Figure 2 is a schematic diagram of a network architecture centered on a base station;

[0110] Figure 3 is a schematic diagram of a user-centric network architecture;

[0111] Figure 4 is a schematic diagram of various elemental BWPs provided in the embodiments of this application;

[0112] Figure 5 is a schematic diagram of various elemental BWPs provided in the embodiments of this application;

[0113] Figure 6 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0114] Figure 7 is a schematic diagram of multiple paging sequences provided in an embodiment of this application;

[0115] Figure 8 is a schematic diagram of a paging sequence receiving method provided in an embodiment of this application;

[0116] Figure 9 is a schematic diagram of the structure of an inspector provided in an embodiment of this application;

[0117] Figure 10 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0118] Figure 11 is a schematic diagram of another communication device provided in an embodiment of this application;

[0119] Figure 12 is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0120] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0121] The network architecture and business scenarios described in this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0122] I. In the embodiments of this application, "multiple" can refer to two or more. Therefore, in the embodiments of this application, "multiple" can also be understood as "at least two". "At least one" can be understood as one or more, such as one, two or more. For example, "including at least one" means including one, two or more. For example, including at least one of A, B and C, then it can include A, B, C, A and B, A and C, B and C, or A, B and C. "And / or" describes the association relationship of the associated objects. Specifically, there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0123] II. In the embodiments of this application, the terms "system" and "network" can be used interchangeably, and "according to" and "based on" can be used interchangeably.

[0124] The ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are generally used to distinguish different objects, and are not used to limit the order, timing, priority, or importance of multiple objects. For example, the first paging sequence and the second paging sequence involved in the embodiments of this application are used to distinguish different paging sequences, and do not limit the order, timing, priority, or importance of the multiple paging sequences.

[0125] 3. The terms “comprising” and “having” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product or device.

[0126] IV. In this application, "predefined" may include predefined terms, such as protocol definitions. "Predefined" can be implemented by pre-storing corresponding codes, tables, or other means of indicating relevant information in the device (e.g., including various network elements), and this application does not limit the specific implementation method.

[0127] V. The term "storage" or "preservation" in this application can refer to storage in one or more memory devices. These memory devices can be separately configured or integrated into an encoder, decoder, processor, or communication device. Alternatively, some memory devices can be separately configured, while others can be integrated into a decoder, processor, or communication device. The type of memory can be any form of storage medium, and this is not limited.

[0128] VI. The arrows or boxes indicated by dashed lines in the schematic diagrams in the accompanying drawings of this application represent optional steps or optional modules.

[0129] VII. In this application, "instruction" may include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information for the purpose of instructing A, it can be understood that the instruction information carries A, directly instructs A, or indirectly instructs A.

[0130] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is a relationship between the other information and the information to be instructed. It can also indicate only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent. Furthermore, the information to be instructed can be sent as a whole or divided into multiple sub-information pieces, and the sending period and / or timing of these sub-information pieces can be the same or different.

[0131] 8. In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0132] IX. In the embodiments of this application, the words "exemplarily," "for example," "for instance," etc., are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as an "example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the word "example" is intended to present concepts in a specific manner. In the embodiments of this application, "of," "corresponding, relevant," and "corresponding" may sometimes be used interchangeably, and it should be noted that their intended meanings are consistent unless their distinction is emphasized.

[0133] 10. The embodiments of this application will be presented in the context of a system including multiple devices, components, modules, etc. It should be understood that the system may include other unmentioned devices, components, modules, etc., or may only include some of the devices, components, or modules mentioned in the embodiments. Optionally, the terms "component" and "part" in this application can be used interchangeably.

[0134] The communication system applicable to the embodiments of this application will be introduced below.

[0135] The technical solutions of this application embodiment can be applied to various communication systems, such as integrated sensing and communication (ISAC), universal mobile telecommunications system (UMTS), wireless local area network (WLAN), short-range wireless communication systems (such as sidelink, wireless fidelity, Wi-Fi, Bluetooth, etc.), wired networks, vehicle to everything (V2X) communication systems, device-to-device (D2D) communication systems, vehicle-to-everything (V2X) communication systems, 4th generation (4G) mobile communication systems (such as Long Term Evolution (LTE) systems), LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, worldwide interoperability for microwave access (WiMAX) communication systems, and 5th generation (5G) mobile communication systems (such as New Radio (NR) systems). The invention relates to radio (NR) systems, future communication systems, or other similar communication systems, without limitation. This application describes the communication system shown in Figure 1 as an example. When applying the technical solutions of this application to other communication systems, the devices, components, and modules in the embodiments can be replaced with corresponding devices, components, and modules in other communication systems, without limitation.

[0136] Figure 1 is a schematic diagram of the architecture of the communication system applied in the embodiments of this application. As shown in Figure 1, the communication system includes an access network 100 and a core network 200. Optionally, the communication system may also include an Internet 300. The access network 100 may include at least one radio access network (RAN) node, such as 110a and 110b in Figure 1, and may also include at least one terminal device, such as 120a-120j in Figure 1. Specifically, 110a is a base station, 110b is a micro-station, 120a, 120e, 120f, and 120j are mobile phones, 120b is a car, 120c is a fuel dispenser, 120d is a home access point (HAP) deployed indoors or outdoors, 120g is a laptop computer, 120h is a printer, and 120i is a drone. The same terminal device or network device can provide different functions in different application scenarios. For example, the mobile phones in Figure 1 are 120a, 120e, 120f and 120j. Mobile phone 120a can access base station 110a, connect to car 120b, communicate directly with mobile phone 120e and access HAP. Car 120b can access HAP and communicate directly with mobile phone 120a. Mobile phone 120f can access micro-station 110b, connect to laptop 120g and printer 120h. Mobile phone 120j can control drone 120i.

[0137] A network device is a network-side device with wireless transceiver capabilities. This network device can be a unit in a radio access network (RAN) that provides wireless communication functionality to terminal devices, referred to as RAN equipment; alternatively, it can also be a core network device. For ease of understanding, the following explanation uses RAN equipment as an example. RAN can be an access network in the 3rd Generation Partnership Project (3GPP), such as 4G, 5G, or future-oriented networks. RAN can also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a communication network combining two or more of these. RAN equipment can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, an access node in a WiFi system, a wireless relay node, or a wireless backhaul node, etc.

[0138] RAN equipment can also be modules or units that perform some of the functions of a base station. For example, it can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's Radio Resource Control Protocol (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP). The DU performs the functions of the base station's Radio Link Control (RAN) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions. For specific descriptions of the above protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The CU and DU can be set up separately or included in the same network element, such as in the baseband unit (BBU). The RU can be included in radio equipment or radio units, such as in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). In different systems, CU, DU, or RU may have different names, but those skilled in the art will understand their meanings. For example, in an ORAN system, CU can also be called an open CU (O-CU), DU can also be called an open DU (O-DU), and RU can also be called an open RU (O-RU). Any of the units among CU (or CU-control plane (CU-CP), or CU-user plane (CU-UP)), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. The network device can be a macro base station (as shown in Figure 1, 110a), a micro base station or an indoor station (as shown in Figure 1, 110b), or a relay node or donor node, etc. The embodiments of this application do not limit the specific technology or device form used in the network device.

[0139] In the embodiments of this application, the functions of the network device can be executed by modules (such as chips) within the network device, or by a control subsystem that includes the functions of the network device. This control subsystem, which includes the functions of the network device, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities.

[0140] A terminal device is a user-side device with wireless transceiver capabilities. Terminal devices can also be called terminals, user equipment (UE), user terminals, user devices, user units, user stations, access terminals, access stations, UE stations, remote stations, wireless communication equipment, mobile stations, or mobile terminals, etc. Terminal devices typically contain communication modules, circuits, or chips that perform corresponding communication functions. They can also be configured with program instructions for performing these functions. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-to-machine (M2M) or machine-type communication (MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grids, smart furniture, smart offices, smart wearables, smart transportation, and smart cities. Terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, transportation vehicles with wireless communication capabilities, communication modules, etc.

[0141] In the embodiments of this application, the device for implementing the functions of the terminal device can be the terminal device itself, or it can be any device that supports the terminal device in implementing the functions, such as a chip system or a combination of devices or components that can implement the functions of the terminal device. This device can be installed in the terminal device. The embodiments of this application do not limit the specific technology or device form used in the terminal device.

[0142] Network devices and terminal devices can be fixed in location or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of the network devices and terminal devices.

[0143] Network devices and terminal devices can communicate via air interface protocols. The air interface can be simply referred to as the air interface. Network devices can communicate with each other via network device-to-network device interface protocols. Terminal devices can communicate with each other via licensed spectrum, unlicensed spectrum, or both simultaneously, without limitation.

[0144] The roles of network devices and terminal devices can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile network device. For terminal devices 120j that access the wireless access network 100 via 120i, terminal device 120i is a network device; however, for network device 110a, 120i is a terminal device. That is, 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a network device-to-network device interface protocol. In this case, relative to 110a, 120i is also a network device. Therefore, both network devices and terminal devices can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be called communication devices with network device functions, and 120a-120j in Figure 1 can be called communication devices with terminal device functions.

[0145] It should be noted that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0146] Next, the technical features related to this application will be introduced.

[0147] In mobile communication systems, the physical layer is typically designed, deployed, and managed using a base station-centric approach, as shown in Figure 2. Figure 2 illustrates an example with two network devices and three terminal devices. The two network devices are denoted as Network Device 1 and Network Device 2, and the three terminal devices are denoted as Terminal Device 1, Terminal Device 2, and Terminal Device 3. A base station-centric approach can be understood as follows: when a terminal device initially accesses the network, it connects to a cell provided by the network device. The network device configures the terminal device with relevant information about that cell and its neighboring cells. Alternatively, it can be understood as the network device configuring resources for the terminal device on a cell-by-cell basis. These resources are only used within the current cell, and reconfiguration is usually required in other cells. Optionally, a base station-centric approach can also be referred to as a network device-centric approach, or a cell-centric approach, etc., without limitation.

[0148] Centering on a base station can reduce the processing complexity of network devices and facilitate the reuse of resources such as frequencies or reference signals between different network devices. However, user experience is easily affected by the distance between the user terminal and the network device. For example, referring to terminal device 1 in Figure 2, terminal device 1 is located in the center of the cell and is relatively close to network device 1. The signal-to-noise ratio of the communication link between terminal device 1 and network device 1 is high, interference is low, and the user experience is good. As another example, referring to terminal device 2 in Figure 2, terminal device 2 is located at the edge of the cell and is relatively far from network device 1. The signal-to-noise ratio of the communication link between terminal device 2 and network device 1 is low, interference is high, and the user experience is poor.

[0149] Referring to terminal device 3 shown in Figure 2, this terminal device 3 is in a mobile state and can move from the cell provided by network device 2 to the cell provided by network device 1, triggering a cell handover process. This may lead to problems such as degraded communication quality and communication interruption, and will also affect the user experience. During the cell handover process, the terminal device and the network device need to perform cumbersome signaling interactions for mobility management and updates, which is not conducive to energy saving of the terminal device and the network device. In addition, the terminal device also needs to perform periodic synchronization operations and measurement operations, which is also not conducive to energy saving of the terminal device and the network device. Optionally, the measurement operation may include, but is not limited to, at least one of the following: cell handover-related measurements, sensing measurements, or channel measurements.

[0150] To address the cell edge issues in the aforementioned base station-centric network architecture, the concept of user-centric no-cell (UCNC) was proposed during the development of mobile communication systems. Optionally, UCNC can also be simply referred to as user-centric. The user-centric approach aims to minimize or avoid triggering cell handover processes, as shown in Figure 3. Figure 3 illustrates an example with two network devices and two terminal devices. The two network devices are denoted as Network Device 1 and Network Device 2, and the two terminal devices are denoted as Terminal Device 1 and Terminal Device 2. In one implementation, the UCNC architecture can achieve user-centricity through a hypercell, that is, aligning the frequency resources of multiple cells with the specific signal formats to be transmitted and received by user terminals, making cell handover imperceptible to users to a certain extent. Essentially, the network devices still need to perform cumbersome mobility management and updates. A hypercell essentially expands the concept of a cell, increasing the number of users to be served. Often, different user terminals are allocated different reference signal sequences and other sequence resources, leading to insufficient reference signal sequences and other sequence resources.

[0151] In the UCNC architecture, although users may not perceive cell handover to some extent, cumbersome mobility management and updates are still required, which is detrimental to energy efficiency of terminal and network devices. For example, frequent synchronization, measurement, and configuration of mobility management and updates between terminal and network devices are necessary, which is also detrimental to energy efficiency of terminal and network devices.

[0152] With the development of mobile communication technology, wireless services are growing and becoming more diverse, and users' demands for communication performance are constantly increasing. For example, in the aforementioned base station-centric or UCNC architecture, when terminal devices move between multiple cells, they need to perform cumbersome mobility management and updates, frequently performing synchronization, measurement, and configuration operations, which affects user experience and results in high power consumption for both terminal and network devices. High power consumption by terminal and network devices impacts communication performance and is detrimental to energy conservation. Therefore, improving communication performance is a current research direction.

[0153] Therefore, embodiments of this application provide a communication method and apparatus for improving communication performance. The method and apparatus described in this application are based on the same technical concept. Since the principles by which the method and apparatus solve the problem are similar, the implementations of the apparatus and method can be mutually referred to, and repeated details will not be elaborated further.

[0154] Before introducing the communication method provided in the embodiments of this application, the relevant terms involved in the embodiments of this application will be explained below. Unless otherwise specified, these explanations are for the purpose of supporting the meaning of the relevant terms and making the embodiments of this application easier to understand, and should not be regarded as a strict limitation of the relevant terms within the scope of protection claimed by this application.

[0155] 1. First transmission mode and second transmission mode

[0156] This application provides a transmission mode, referred to as the first transmission mode. The first transmission mode can be understood as: a mode in which a terminal device communicates with a network device corresponding to multiple cells through fixed resources within multiple cells; or it can also be understood as: a mode in which a terminal device communicates with a network device corresponding to multiple cells through fixed resources within an area covered by the network device corresponding to the multiple cells. Optionally, the network device corresponding to a cell can be understood as the cell being provided by a network device. The multiple cells can correspond to one network device, or they can correspond to multiple network devices, without limitation. For example, the network devices corresponding to multiple cells can be denoted as M network devices, where M is an integer greater than or equal to 1. The area covered by the M network devices can be understood as the geographical range covered by the M network devices, or it can be understood as the logical range covered by the M network devices, without limitation. For simplicity, the following description uses the area covered by the M network devices as the first area.

[0157] Optionally, the first transmission mode may also be referred to as the first communication mode, the first mode, the meta mode, the meta transmission mode, the dedicated mode, the dedicated transmission mode, the green light area mode, or the green light area transmission mode, etc. The naming of the first transmission mode is not limited in the embodiments of this application.

[0158] It is understood that the communication method provided in this application embodiment can be applied to scenarios with multiple cells or to scenarios with only one cell. The following description uses a scenario with multiple cells as an example, and the implementation process in a scenario with only one cell can refer to the implementation process in a scenario with multiple cells.

[0159] Optionally, fixed resources can be understood as resources consistent across multiple cells or a first area, or resources that do not require reconfiguration across multiple cells or a first area. For example, fixed resources may be configured identically across multiple cells, shared by multiple cells, or remain unchanged across multiple cells. For instance, fixed resources can be configured for use by at least one terminal device, which can communicate with network devices corresponding to the multiple cells through the fixed resources. Optionally, fixed resources may also be referred to as meta-resources, etc., and the naming of fixed resources is not limited in this application embodiment. Exemplarily, fixed resources may include sequence resources, or physical resources, or both sequence resources and physical resources.

[0160] The second transmission mode differs from the first transmission mode. For example, the second transmission mode can be understood as a transmission mode other than the first transmission mode. For example, the second transmission mode can be a base station-centric transmission mode. Another example is that the second transmission mode can be a transmission mode in a single-cell scenario. Optionally, the second transmission mode can also be called a second communication mode, a second mode, a non-green light area mode, a non-green light area transmission mode, or a scheduled transmission mode, etc. The naming of the second transmission mode is not limited in this application embodiment.

[0161] 2. Sequence resources and physical resources

[0162] This application provides a sequence resource, which may include (or indicate) at least one sequence. Exemplarily, the sequence resource may include, but is not limited to, at least one of the following: a random access sequence, a synchronization (SYNC) sequence, a paging sequence, a reference signal (RS) sequence, a sequence for generating a wake-up signal (WUS), a sequence for generating a hybrid automatic repeat request (HARQ) signal, or a sequence for generating data. Optionally, the sequence resource may also be referred to as a sequence set, a sequence resource pool, or a sequence pool, etc. This application does not limit the naming of the sequence resource.

[0163] It is understandable that synchronization sequences, paging sequences, random access sequences, reference signal sequences, sequences used to generate wake-up signals, sequences used to generate mixed automatic repeat request signals, and sequences used to generate data can each be referred to as a type of sequence.

[0164] Optionally, the reference signal sequence may include at least one of the following: a sounding reference signal (SRS) sequence, a demodulation reference signal (DMRS) sequence, a positioning reference signal (PSR) sequence, a phase tracking reference signal (PTRS) sequence, or a channel state information-reference signal (CSI-RS) sequence, etc. For simplicity, this application describes the embodiment using SRS as an example. It is understood that in future communication systems, the sounding reference signal may still be called SRS, or it may be named in other ways, without limitation.

[0165] This application provides a physical resource that can be used to carry sequence resources. For example, the physical resource can carry sequence resources within multiple cells. Alternatively, the physical resource can carry sequence resources within a first area. Optionally, carrying sequence resources can be replaced by carrying at least one sequence included in the sequence resources. Optionally, the physical resource can also carry data, etc., within multiple cells or the first area, without limitation.

[0166] For example, physical resources may include time-domain resources, frequency-domain resources, or both. For instance, a physical resource may occupy the entire bandwidth in the frequency domain and a portion of the time-domain resources; or, a physical resource may occupy a portion of the bandwidth in the frequency domain and a portion of the time-domain resources; or, a physical resource may occupy a portion of the bandwidth in the frequency domain and all of the time-domain resources. For ease of understanding, this application uses the example of a physical resource occupying a portion of the bandwidth in the frequency domain. Optionally, this physical resource may also be called a dedicated resource, a meta-bandwidth part (BWP), or a dedicated BWP, etc. The naming of physical resources is not limited in this application embodiment. The following description uses a meta-BWP as an example of a physical resource. Optionally, the meta-BWP may be called a meta-BWP, without limitation. Optionally, the first transmission mode can be understood as a mode in which terminal devices in multiple cells or a first area communicate with M network devices through a meta-BWP (e.g., perform sequence resource transmission).

[0167] In one example, the meta-BWP can occupy the same frequency domain resources in different time units. For example, the meta-BWP occupies the same frequency domain resources in different time units, is continuous in both the frequency and time domains, as shown in (1) of Figure 4. Another example is that the meta-BWP occupies the same frequency domain resources in different time units, is continuous in both the frequency and time domains, as shown in (2) of Figure 4. Yet another example is that the meta-BWP occupies the same frequency domain resources in different time units, is discontinuous in both the frequency and time domains, as shown in (3) of Figure 4. And yet another example is that the meta-BWP occupies the same frequency domain resources in different time units, is discontinuous in both the frequency and time domains, as shown in (4) of Figure 4.

[0168] In another example, the meta-BWP can occupy different frequency domain resources at different time units. For example, the meta-BWP occupies different frequency domain resources at different time units, being continuous in both the frequency and time domains, as shown in Figure 5(1). Another example is that the meta-BWP occupies different frequency domain resources at different time units, being continuous in both the frequency and time domains, as shown in Figure 5(2). Yet another example is that the meta-BWP occupies different frequency domain resources at different time units, being discontinuous in both the frequency and time domains, as shown in Figure 5(3). And yet another example is that the meta-BWP occupies different frequency domain resources at different time units, being discontinuous in both the frequency and time domains, as shown in Figure 5(4).

[0169] It is understandable that the meta-BWP time-frequency patterns shown in Figures 4 and 5 are examples and do not impose restrictions on the meta-BWP time-frequency patterns.

[0170] Optionally, a meta BWP can be divided into uplink meta BWPs and downlink meta BWPs. The uplink meta BWP can be used for uplink transmission between the terminal device and M network devices. For example, the uplink meta BWP can occupy the same frequency domain resources in different time units, or it can occupy different frequency domain resources in different time units. For specific implementation details, please refer to the meta BWP description; further details will not be elaborated here. The downlink meta BWP can be used for downlink transmission between the terminal device and M network devices. For example, the downlink meta BWP can occupy the same frequency domain resources in different time units, or the uplink meta BWP can occupy different frequency domain resources in different time units. For specific implementation details, please refer to the meta BWP description; further details will not be elaborated here.

[0171] Optionally, the meta-BWP time-frequency pattern can be predefined, determined based on pre-agreed information (e.g., formulas or parameters), or configured by the network device; there are no restrictions. For example, the network device can send the meta-BWP configuration information to the terminal device; correspondingly, the terminal device receives the meta-BWP configuration information from the network device. The meta-BWP configuration information can be used to determine the meta-BWP time-frequency pattern. Optionally, the meta-BWP configuration information can be carried by the master information block (MIB); or, the meta-BWP configuration information can be carried by the system information block (SIB); or, the meta-BWP configuration information can also be carried by higher-layer signaling; there are no restrictions. Optionally, the MIB can be carried by the physical broadcast channel (PBCH). Optionally, the SIB can be carried by the physical downlink shared channel (PDSCH). Optionally, the higher-layer signaling can be radio resource control (RRC) signaling, or medium access control-control element (MAC-CE) signaling, etc., without restriction.

[0172] The time unit in this application embodiment can be one or more symbols, one or more time slots, one or more mini-slots, one or more sub-frames, or one or more frames, etc. This application embodiment does not limit the implementation form of the time unit. Furthermore, multiple time units can be continuous in time or discrete, without limitation.

[0173] 3. First access method and second access method

[0174] This application provides an access method, denoted as the first access method. The first access method can be understood as the access method corresponding to a first transmission mode. For example, a terminal device can obtain configuration information of the first transmission mode through the first access method, and / or, the terminal device can use (or access, or enter) the first transmission mode through the first access method. For example, the first access method can be initial access, which can be used to obtain configuration information of the first transmission mode. Another example is that the first access method can be non-initial access, which can be used to access (or enter, or switch to, etc.) the first transmission mode. Yet another example is that the first access method can include both initial access and non-initial access, which can be used to obtain configuration information of the first transmission mode and access the first transmission mode.

[0175] Optionally, the first access method may also be called meta-access or dedicated access method, etc. The naming of the first access method is not limited in the embodiments of this application.

[0176] The second access method differs from the first access method. For example, the second access method can be understood as an access method other than the first access method. For example, the second access method can be the access method corresponding to the second transmission mode. For example, the second access method can be an access method centered on the base station.

[0177] 4. W sequence

[0178] For example, some or all of the sequences in the embodiments of this application can be generated based on the W sequence. The W sequence has low ambiguity, which makes the sequence resources obtained based on the W sequence have good robustness. Based on the W sequence, more sequence resources can be obtained, which is conducive to realizing the expansion of sequence resources, improving the problem of insufficient sequence resources, and providing services to more users.

[0179] The sequence W can be determined by a first length and a second length. The first length can be interpreted as the mapping length of the sequence, the transmission length of the sequence, the actual length of the sequence, or the generation length of the sequence, etc., without restriction. The second length can be interpreted as the length of the sequence within a generation period, or the length of the sequence within a complete period, etc., without restriction. For example, let the first length be denoted as N, and the second length as P, where N is an integer greater than 1, and P is an integer greater than 1.

[0180] For example, the W sequence can satisfy the following formula (1).

[0181] Where x(n) is the W sequence, e is a constant, π is pi, j is the imaginary unit, and j 2= -1. n is an integer greater than 0 and less than or equal to N, or n is an integer greater than or equal to 0 and less than or equal to (N - 1), where N is the first length. P is the second length. p(n) can be a polynomial of the highest degree d, where d is an integer greater than or equal to 0. For example, p(n) can be understood as the generating polynomial of x(n).

[0182] Exemplarily, p(n) can satisfy the following formula (2). p(n) = p d n d + p d-1 n d-1 + … + p1n + p0 Formula (2)

[0183] where p i can be called the coefficient of the i-th term, where i is an integer greater than 0 and less than or equal to d. For example, assuming d > 1, if p d is not 0, p d can be called the coefficient of the highest-degree term, p d-1 can be called the coefficient of the second-highest-degree term, and p1 can be called the coefficient of the first-degree term.

[0184] The sequence of the first P terms generated according to formula (1) and formula (2) is called a generation period, or a complete period. Optionally, the first length and the second length can be equal, or they can also be unequal. For example, if the first length and the second length are equal, i.e., N = P, then just take the sequence within one generation period for mapping. Another example, if the first length is less than the second length, i.e., N < P, then the sequence of the first N terms within one generation period can be taken for mapping. Still another example, if the first length is greater than the second length, i.e., N > P, then the sequence within one generation period and the sequence of the first (N - P) terms within one generation period can be taken for mapping.

[0185] As an example, assume P = 5, and the sequence within one generation period is denoted as {x1, x2, x3, x4, x5}. If N = 5, then {x1, x2, x3, x4, x5} can be taken for mapping. Or, if N = 3, then {x1, x2, x3} can be taken for mapping. Or, if N = 7, then {x1, x2, x3, x4, x5, x1, x2} can be taken for mapping.

[0186] Optionally, the value of the second length can be a prime number. That is, the value of P can be a prime number. Compared with the case where the value of P is a composite number, when the value of P is a prime number, it cannot be divided by other natural numbers, so that when d is the same and the length of the sequence meets certain conditions, more sequences with good autocorrelation and cross-correlation can be generated, thus more users can be served and the capacity can be expanded.

[0187] As mentioned above, d is an integer greater than or equal to 0. In one example, d = 2, that is, the highest-order term of the W sequence can be a quadratic term. For example, with d = 2, the W sequence can satisfy the following formula (3).

[0188] In another example, d = 3, that is, the highest-order term of the W sequence can be a cubic term. For example, with d = 3, the W sequence can satisfy the following formula (4).

[0189] In another example, d = 4, that is, the highest degree term of the W sequence can be a fourth degree term. For example, with d = 4, the W sequence can satisfy the following formula (5).

[0190] Where Q is the number of cyclic shifts in the time domain, θ is a constant, and α, μ, γ, and τ are all integers. For example, α can be an integer greater than or equal to 0 and less than or equal to (P-1). For example, μ can be an integer greater than or equal to 0 and less than or equal to (P-1). For example, γ can be an integer greater than or equal to 0 and less than or equal to (P-1). For example, τ can be an integer greater than or equal to 0 and less than or equal to (Q-1). The remaining parameters in formulas (3) to (5) can be referred to the description in formula (1), and will not be repeated here.

[0191] It is understood that the above formulas (3) to (5) are examples and are not limited to these. For example, d can also be 1, or 5, or any other integer other than 2, 3, and 4. Exemplarily, the larger the value of d, the more terms the polynomial used in the W sequence has, and the more different sequences can be generated based on the W sequence.

[0192] The communication method provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings. This method can be applied to the communication systems shown in Figure 1 or Figure 3, but is not limited thereto. The embodiments of this application use the interaction between a first terminal device and a first network device and a second network device as an example for explanation. It is understood that the communication method provided in the embodiments of this application can also be applied to end-to-end communication scenarios such as V2X and D2D. The implementation process can be referred to the following description of the communication between the terminal device and the network device in the embodiments, and will not be repeated here.

[0193] Among them, the first network device and the second network device belong to M network devices. Optionally, the first network device and the second network device can be the same network device, or they can be two different network devices. Unless otherwise specified, the following example illustrates that the first network device and the second network device are two different network devices.

[0194] Unless otherwise specified, the term "first terminal device" in this application can be the first terminal device itself, a component within the first terminal device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first terminal device. Similarly, unless otherwise specified, the term "first network device" in this application can be the first network device itself, a component within the first network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first network device. Unless otherwise specified, the term "second network device" in this application can be the second network device itself, a component within the second network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second network device.

[0195] It is understood that in the embodiments of this application, the first terminal device, the first network device, or the second network device may execute some or all of the steps in the embodiments of this application. These steps or operations are merely examples, and the embodiments of this application may also execute other operations or variations thereof. Furthermore, the various steps may be executed in different orders as presented in the embodiments of this application, and it is not necessarily necessary to execute all the operations in the embodiments of this application.

[0196] Figure 6 is a flowchart illustrating a communication method provided in an embodiment of this application. As shown in Figure 6, the method may include the following steps.

[0197] S601: The first network device sends a second message. For example, the first network device may send a second message to the first terminal device.

[0198] The first terminal device receives the second message. For example, the first terminal device may receive a second message from the first network device.

[0199] Step S601 is optional and is represented by a dashed line in Figure 6. Here, the cell corresponding to the first network device belongs to multiple cells, or the first network device belongs to M network devices, or the multiple cells include the cell corresponding to the first network device. Optionally, the second message can be a configuration message for the first transmission mode, such as the second message carrying configuration information for the first transmission mode.

[0200] The second message may include at least one of the following: a first identifier, information indicating at least one sequence, or a first resource. Optionally, the information indicating at least one sequence may be a set of sequence identifiers, a table of sequence identifiers, etc. This application embodiment does not limit the implementation form of the information indicating at least one sequence. For example, the information indicating at least one sequence may be one or more sets, one or more tables, or an identifier range, etc., without limitation.

[0201] For brevity, the following description uses the example of a first set of information used to indicate at least one sequence. In other words, the first set is used to indicate at least one sequence. Optionally, "first set" in the following text can be replaced with "at least one sequence" or "information used to indicate at least one sequence," "sequence indicated by the first set" can be replaced with "at least one sequence," and "at least one sequence indicated by the first set" can be replaced with "at least one sequence." Accordingly, the second message may include at least one of a first identifier, a first set, or a first resource.

[0202] (1) The first identifier, also known as the UE identifier (ID), is not limited in its naming in this application embodiment. The first identifier can be used to identify the first terminal device in multiple cells; or, the first identifier can be used to identify the first terminal device in a first area; or, the first identifier can be used to identify the first terminal device in a first transmission mode; or, the first identifier can be used to identify the context of the first terminal device in the first transmission mode; or, the first identifier can be used to identify the context of the first terminal device under a first access method; or, the first identifier can identify the context of the first terminal device in multiple cells or a first area. Optionally, the context of the first terminal device may include a first set and / or a first resource.

[0203] Optionally, the first identifier can be used to uniquely identify the first terminal device in multiple cells or a first area; or, the first identifier can be used to uniquely identify the first terminal device in a first transmission mode; or, the first identifier can be used to uniquely identify the context of the first terminal device in the first transmission mode; or, the first identifier can be used to uniquely identify the context of the first terminal device under a first access method; or, the first identifier can identify the context of the first terminal device in multiple cells or a first area. For example, the first identifier can be a unique UE ID, used as an ID for scheduling the first terminal device in multiple cells or a first area, or as an ID for scheduling the first terminal device in the first transmission mode, or as an ID for scheduling the first terminal device under the first access method.

[0204] Optionally, the first identifier can also be used to identify multiple terminal devices, including the first terminal device. For example, the first identifier can be the identifier of a group of UEs. For example, the first identifier can be used to identify the multiple terminal devices in multiple cells or a first area; or, the first identifier can be used to identify the multiple terminal devices in a first transmission mode; or, the first identifier can be used to identify the context of the multiple terminal devices in the first transmission mode; or, the first identifier can identify the context of the multiple terminal devices in multiple cells or a first area; or, the first identifier can be used to identify the context of the multiple terminal devices under a first access method.

[0205] Optionally, the first identifier can page the first terminal device in multiple cells or within a first area.

[0206] In one possible implementation, the first identifier can be determined by the radio network temporary identity (RNTI) of the first terminal device. Exemplarily, the first identifier can be an identifier obtained by extending the RNTI of the first terminal device. For example, the first identifier can be denoted as extended-RNTI (E-RNTI). Exemplarily, the length of the E-RNTIs of different terminal devices can be the same or different. For example, the length of the E-RNTI can dynamically change according to the number of users using the first transmission mode in multiple cells or a first area. Optionally, the length of the already allocated E-RNTI has no effect on the length of subsequently allocated E-RNTIs.

[0207] In one example, the first identifier can be determined by the identifier of the first cell and the RNTI of the first terminal device. For example, the first identifier includes the identifier of the first cell and the RNTI of the first terminal device. For example, the first identifier can include some or all of the information in the identifier of the first cell and some or all of the information in the RNTI of the first terminal device. For instance, the first identifier can include X bits truncated from the identifier of the first cell and the RNTI of the first terminal device, where X is a positive integer. This truncated X bits can identify the first terminal device in multiple cells without using the complete RNTI and cell identifier, which helps to save transmission resources.

[0208] The first cell can be any of multiple cells. For example, the first cell can be the cell corresponding to the first network device, or the first cell can be the cell for initial access, or the first cell can be any of the multiple cells other than the cell for initial access, without restriction.

[0209] In another example, the first identifier can also be determined by the identifier of the first region and the RNTI of the first terminal device. For example, the first identifier includes the identifier of the first region and the RNTI of the first terminal device. For example, the first identifier may include some or all of the information in the identifier of the first region and some or all of the information in the RNTI of the first terminal device. For instance, the first identifier may include the identifier of the first region and a truncated Y bit from the RNTI of the first terminal device, where Y is a positive integer. This truncated Y bit can identify the first terminal device within the first region without using the complete RNTI and region identifier, thus saving transmission resources. The first region is described above and will not be repeated here.

[0210] In another example, the first identifier can also be determined by the identifier of the first cell, the identifier of the first area, and the RNTI of the first terminal device. For example, the first identifier includes the identifier of the first cell, the identifier of the first area, and the RNTI of the first terminal device. The first cell and the first area are described above and will not be repeated here.

[0211] Optionally, the first identifier can be configured by the first network device, or it can be predefined, without restriction.

[0212] (2) A first set may be used to indicate at least one sequence. For example, the first set may include an identifier of at least one sequence. The at least one sequence belongs to the aforementioned sequence resources. For example, the at least one sequence indicated by the first set may be understood as: a sequence resource configured by the first network device for the first terminal device, or as: a sequence resource configured by the first network device for the first terminal device for transmission in multiple cells or a first area. Exemplarily, the at least one sequence may include at least one of the following: a random access sequence, a SYNC sequence, a paging sequence, an RS sequence, a sequence for generating WUS, a sequence for generating HARQ signals, or a sequence for generating data.

[0213] In this embodiment of the application, the first set indicating at least one sequence may include at least one paging sequence, or the first set indicating at least one sequence may include at least one set of paging sequences. For example, the first set may be used to indicate at least one paging sequence; or, the first set may be used to indicate at least one set of paging sequences. Each set of paging sequences in the at least one set includes at least one paging sequence. Optionally, the first set may also be used to indicate at least one of the following: a random access sequence, a SYNC sequence, an RS sequence, a sequence for generating WUS, a sequence for generating HARQ signals, or a sequence for generating data. Optionally, at least one set of paging sequences may be replaced with: at least one set of paging sequences.

[0214] Accordingly, the second message may include at least one of the following: a first identifier, information indicating at least one set of paging sequences (or information indicating at least one paging sequence), or a first resource. The following description uses the first set as an example. Optionally, "first set" in the following text may be replaced with "at least one set of paging sequences," or "at least one paging sequence," or "information indicating at least one set of paging sequences," or "information indicating at least one paging sequence."

[0215] In one embodiment, a first set is used to indicate at least one paging sequence, which can be used to page a first terminal device. For example, the at least one paging sequence can be used to page the first terminal device in multiple cells or a first area. For example, each of the at least one paging sequence can be used to page the first terminal device. For example, each of the at least one paging sequence can be used to page the first terminal device in multiple cells or a first area. In this embodiment, each of the at least one paging sequence indicated by the first set is used to page the first terminal device, so that the first terminal device can determine that it has been paged by checking one paging sequence indicated by the first set, which consumes less network resources and is easy to implement.

[0216] In another implementation, the first set is used to indicate at least one set of paging sequences, which can be used to page a first terminal device. For example, the at least one set of paging sequences can be used to page the first terminal device in multiple cells or a first area. In one example, each of the at least one paging sequences included in the at least one set of paging sequences can be used to page the first terminal device. For example, each of the at least one paging sequences included in the at least one set of paging sequences can be used to page the first terminal device in multiple cells or a first area. In another example, each of the at least one set of paging sequences can be used to page the first terminal device. For example, each of the at least one set of paging sequences can page the first terminal device in multiple cells or a first area. In this implementation, since each of the at least one paging sequences included in the at least one set of paging sequences can be used to page the first terminal device, the first terminal device can determine that it has been paged simply by checking a paging sequence indicated by the first set, which consumes less network resources and is easy to implement. Alternatively, each of the at least one set of paging sequences is used to page the first terminal device, such that the first terminal device needs to check all the paging sequences in the set indicated by the first set to determine that it has been paged. A set of paging sequences can carry more information than a single paging sequence.

[0217] In one possible implementation, the first terminal device may support dedicated paging. Optionally, the first terminal device supporting dedicated paging can be understood as: the paging sequence indicated by the first set includes a paging sequence specific to the first terminal device; or it can also be understood as: the paging sequence indicated by the first set includes a specific paging sequence for the first terminal device; or it can also be understood as: the paging sequence indicated by the first set includes a paging sequence used only for paging the first terminal device. For example, the paging sequence usable by the first terminal device (i.e., the paging sequence indicated by the first set) is different from the paging sequence usable by the second terminal device, which is a terminal device other than the first terminal device.

[0218] In one possible implementation, at least one paging sequence indicated by the first set can be generated based on a W sequence, or at least one set of paging sequences indicated by the first set can be generated based on a W sequence. The description of the W sequence is as described in the preceding terminology section and will not be repeated here. For example, the first terminal device can determine paging sequences that support transmission in multiple cells or a first area based on the W sequence, and these paging sequences include the paging sequences indicated by the first set. Optionally, the first terminal device can determine paging sequences that support transmission in multiple cells or a first area based on relevant parameters of the W sequence. In this implementation, the paging sequences indicated by the first set are generated based on the W sequence, which has low ambiguity, resulting in better robustness of the paging sequences generated based on the W sequence. Furthermore, a larger number of paging sequences can be generated based on the W sequence, which is beneficial for expanding the paging sequence capacity, alleviating the problem of insufficient sequence resources, and thus enabling services to be provided to more users.

[0219] Optionally, the relevant parameters of the W sequence may include at least one of the following: a first length, a second length, Q, θ, or at least one coefficient. Please refer to the terminology introduction for Q and θ; they will not be repeated here. At least one coefficient can be understood as the coefficient of the polynomial or the coefficient of the mononomial used in the W sequence. For example, if d = 2, at least one coefficient may include at least one of the following: γ or τ, as shown in formula (3). For another example, if d = 3, at least one coefficient may include at least one of the following: μ, γ, or τ, as shown in formula (4). For yet another example, if d = 4, at least one coefficient may include at least one of the following: α, μ, γ, or τ, as shown in formula (5). Please refer to the aforementioned terminology introduction for descriptions of the first length, second length, Q, θ, α, μ, γ, and τ; they will not be repeated here.

[0220] Optionally, the relevant parameters of the W sequence can be predefined, configured by the network device (e.g., the first network device), or some parameters can be predefined while the remaining parameters are configured by the network device (e.g., the first network device), without limitation. For example, the first network device can send a first message, which can be used to indicate the relevant parameters of the W sequence; correspondingly, the first terminal device receives the first message. Optionally, the first message can be carried by the SIB, or by the MIB, or by higher-layer signaling, without limitation. The higher-layer signaling can be, for example, RRC signaling, or MAC-CE signaling, without limitation.

[0221] Optionally, the highest-order term of the W sequence used when generating multiple paging sequences can be a quadratic term, as shown in formula (3); or, the highest-order term of the W sequence used when generating multiple paging sequences can also be a cubic term, as shown in formula (4); or, the highest-order term of the W sequence used when generating multiple paging sequences can also be a quartic term, as shown in formula (5), without restriction. Optionally, the highest-order term of the W sequence used when generating multiple paging sequences can be replaced with: the highest-order term used when generating multiple paging sequences based on the W sequence.

[0222] In one implementation, the highest-order term used when generating multiple paging sequences based on the W sequence can be different or the same. The correlation between multiple paging sequences generated using the same highest-order term is better than the correlation between multiple paging sequences generated using different highest-order terms, which is beneficial for achieving better detection performance.

[0223] In one embodiment, at least one of the multiple terms used in generating the plurality of paging sequences based on the W sequence, excluding the highest-order term, can be different. Optionally, the second-highest-order terms used in generating the plurality of paging sequences based on the W sequence are different, and / or, the first-order terms used in generating the plurality of paging sequences based on the W sequence are different. For example, the highest-order term used in generating the plurality of paging sequences based on the W sequence is the same, the second-highest-order terms used in generating the plurality of paging sequences based on the W sequence are different, and the first-order terms used in generating the plurality of paging sequences based on the W sequence are the same. Another example, the highest-order term used in generating the plurality of paging sequences based on the W sequence is the same, the second-highest-order terms used in generating the plurality of paging sequences based on the W sequence are the same, and the first-order terms used in generating the plurality of paging sequences based on the W sequence are different. Yet another example, the highest-order term used in generating the plurality of paging sequences based on the W sequence is the same, the second-highest-order terms used in generating the plurality of paging sequences based on the W sequence are different, and the first-order terms used in generating the plurality of paging sequences based on the W sequence are different. In this embodiment, the different second-highest-order terms used when generating multiple paging sequences based on the W sequence allow the first terminal device to detect the received paging sequence by means of the correlation position in the time domain or the frequency domain correlation peak position after the inverse fast fourier transform (IFFT), thus reducing detection complexity. Similarly, the different first-order terms used when generating multiple paging sequences based on the W sequence allow the first terminal device to detect the received paging sequence by means of the correlation position in the time domain or the time domain correlation peak position after the IFFT, further reducing detection complexity.

[0224] Optionally, the term "same highest-order term" can be replaced with "same highest-order term coefficient". "same second-highest-order term" can be replaced with "same second-highest-order term coefficient". The term "different second-highest-order term" can be replaced with "different second-highest-order term coefficient". "different first-order term" can be replaced with "different first-order term coefficient".

[0225] For example, suppose that the paging sequences indicated by the first set include paging sequence 1 and paging sequence 2, denoted as x1(n) and x2(n) respectively, and the generator polynomials corresponding to x1(n) and x2(n) are denoted as p1(n) and p2(n) respectively. The highest-order coefficients in p1(n) and p2(n) are the same, while the second-highest-order coefficients are different. Thus, the first terminal device can detect whether the received sequence is x1(n) or x2(n) by the correlation position in the time domain or the correlation peak position in the frequency domain after IFFT. Alternatively, the highest-order coefficients in p1(n) and p2(n) are the same, the second-highest-order coefficients are the same, and the first-order coefficients are different. Thus, the first terminal device can detect whether the received sequence is x1(n) or x2(n) by the correlation position in the time domain or the correlation peak position in the frequency domain after IFFT. Or, the highest-order coefficients in p1(n) and p2(n) are the same, the second-highest-order coefficients are different, and the first-order coefficients are also different. Thus, the first terminal device can detect whether the received sequence is x1(n) or x2(n) by the correlation position in the time domain or the correlation peak position in the frequency domain after IFFT and / or the correlation peak position in the time domain. Optionally, the detection result of the first terminal device can also indicate that the received sequence is neither x1(n) nor x2(n).

[0226] In one embodiment, the information indicated by different paging sequences among the plurality of paging sequences indicated by the first set may be different; or, the information indicated by different groups of paging sequences among the plurality of groups of paging sequences indicated by the first set may be different. For example, suppose the sequences indicated by the first set include a first paging sequence and a second paging sequence, and the information indicated by the first paging sequence and the information indicated by the second paging sequence may be different. The first paging sequence may be a single paging sequence or a group of paging sequences, without limitation. The second paging sequence may be a single paging sequence or a group of paging sequences, without limitation.

[0227] In one implementation, the multiple paging sequences indicated by the first set may have different functions or uses. For example, suppose the sequences indicated by the first set include a first paging sequence and a third paging sequence, and the functions of the first and third paging sequences may differ. Optionally, the first paging sequence may be used for at least one of the following: paging at least one terminal device, data transmission, notification of system information updates, or control information transmission. Wherein, at least one terminal device includes a first terminal device. The first paging sequence may be a single paging sequence or a set of paging sequences, without limitation. The third paging sequence may be a single paging sequence or a set of paging sequences, without limitation. Control information transmission may be, for example, DCI transmission, without limitation. Control information may be, for example, indication of a state change or uplink / downlink authorization, without limitation.

[0228] For example, suppose the sequence indicated by the first set includes paging sequence 1, paging sequence 2, paging sequence 3, and paging sequence 4, and the first resource includes resource 1 and resource 2. Paging sequence 1 is used for the transmission of data 1, paging sequence 2 is used for the transmission of DCI 1, paging sequence 3 is used for the transmission of data 2, and paging sequence 4 is used for the transmission of DCI 2. Paging sequence 1 and paging sequence 2 are both carried by resource 1, and paging sequence 3 and paging sequence 4 are both carried by resource 2, as shown in Figure 7. It is understood that the format of the information indicated by the paging sequence is not limited in this embodiment.

[0229] It is understood that the format of the paging sequence indication information in Figure 7 is merely an example and is not limited thereto. It is also understood that the format of the paging sequence indication information can be predefined or configured by the network device (e.g., the first network device), without limitation. Accordingly, the first terminal device can receive information of a specific format on the first resource. This reception of information of a specific format can be understood as: detecting information of at least one predefined format (or at least one configured format) through blind detection.

[0230] It is understandable that the information indicated by the first paging sequence differs from that indicated by the second paging sequence. The functions of the first and second paging sequences may be the same or different. For example, the first and second paging sequences may indicate different information, but both are used to notify the system of information updates. Similarly, the functions of the first and third paging sequences differ, and the information indicated by the first and third paging sequences may be the same or different. For example, the first and third paging sequences may indicate the same information, but their different functions can be distinguished by the different resources they utilize.

[0231] Optionally, the first set can be configured by the first network device, or it can be predefined without restriction.

[0232] (3) A first resource can be used to carry a sequence indicated by a first set. For example, the first resource can be used to carry a sequence indicated by a first set in multiple cells or a first area. For example, the first resource belongs to the aforementioned meta-BWP. For example, the first resource can be understood as a physical resource configured by the first network device for the first terminal device for transmitting sequence resources in multiple cells or a first area. Optionally, the first resource can be consistent in multiple cells or a first area, or the first resource can remain unchanged in multiple cells or a first area, or the first resource does not need to be reconfigured in multiple cells or a first area. Optionally, the first resource is a meta-BWP, or the first resource is a part of a meta-BWP.

[0233] For example, the frequency domain resources occupied by the first resource in different time units may be the same, or the frequency domain resources occupied by the first resource in different time units may be different; the first resource may be continuous in the frequency domain, or the first resource may be discontinuous in the frequency domain; the first resource may be continuous in the time domain, or the first resource may be discontinuous in the time domain. For details, please refer to the description of the meta-BWP, which will not be repeated here.

[0234] In this embodiment, the first set can be used to indicate at least one paging sequence, and the first resource can be used to carry the at least one paging sequence indicated by the first set. For example, the first resource can be used to carry the at least one paging sequence indicated by the first set in multiple cells or a first area. Alternatively, the first set can also be used to indicate at least one set of paging sequences, and the first resource can be used to carry the at least one set of paging sequences indicated by the first set. For example, the first resource can be used to carry the at least one set of paging sequences indicated by the first set in multiple cells or a first area.

[0235] Optionally, it is assumed that the sequence indicated by the first set includes a first paging sequence and a second paging sequence. The resources carrying the first paging sequence and the resources carrying the second paging sequence may be the same, or the resources carrying the first paging sequence and the resources carrying the second paging sequence may be different, as shown in Figure 7.

[0236] Optionally, the first resource can be configured by the first network device, or it can be predefined without restriction.

[0237] Optionally, the second message may also include other information. For example, if the sequence indicated by the first set includes at least one paging sequence, the second message may also include information indicating a first sub-resource, which is used to carry the at least one paging sequence indicated by the first set and belongs to the first resource. As another example, if the sequence indicated by the first set includes at least one random access sequence, the second message may also include information indicating a second sub-resource, which is used to carry the at least one random access sequence indicated by the first set and belongs to the first resource. Yet another example, if the sequence indicated by the first set includes at least one synchronization sequence, the second message may also include information indicating a third sub-resource, which is used to carry the at least one synchronization sequence indicated by the first set and belongs to the first resource.

[0238] As mentioned above, the first set can be predefined or configured by the first network device. The first resource can be predefined or configured by the first network device. In one possible implementation, at least one of the receiving methods of the first set, the first resource, or the paging sequence can be associated with a first identifier. For example, the first terminal device can determine at least one of the receiving methods of the first set, the first resource, or the paging sequence based on the first identifier. These will be described separately below.

[0239] 1. The first set is associated with the first identifier.

[0240] The first set is associated with a first identifier, which can be understood as follows: the identifier of at least one sequence indicated by the first set is determined by the first identifier. Accordingly, the first terminal device can determine the first set based on the first identifier. Optionally, the identifiers of some or all of the sequences in the at least one sequence indicated by the first set can be determined by the first identifier. Optionally, the identifier of at least one paging sequence indicated by the first set can be determined by the first identifier. Accordingly, the first terminal device can determine the identifier of at least one paging sequence indicated by the first set based on the first identifier. Optionally, at least one paging sequence indicated by the first set can be replaced by: at least one paging sequence included in at least one set of paging sequences indicated by the first set. The following description uses at least one paging sequence indicated by the first set as an example.

[0241] In one embodiment, the identifier of at least one paging sequence indicated by the first set can be determined by a first identifier and first information. Accordingly, the first terminal device can determine the identifier of at least one paging sequence indicated by the first set based on the first identifier and the first information. The first information may include the number of at least one paging sequence indicated by the first set, or may include a first quantity, or may include both the number of at least one paging sequence indicated by the first set and the first quantity.

[0242] The first quantity can be understood as: the number of paging sequences that support transmission in multiple cells or a first area; or it can be understood as: the total number of paging sequences that can be used in multiple cells or a first area; or it can be understood as: the total number of paging sequences that can be used in the first transmission mode; or it can be understood as: the total number of paging sequences that can be used to generate paging messages in the first transmission mode. The paging sequences that support transmission in multiple cells or a first area include at least one paging sequence indicated by the first set.

[0243] For example, the identifier of at least one paging sequence indicated by the first set can be determined by a first identifier, first information, and a first mapping function. Accordingly, the first terminal device can determine the identifier of at least one paging sequence indicated by the first set based on the first identifier, first information, and the first mapping function. For example, the first terminal device can substitute the first identifier and first information into the first mapping function to obtain the identifier of at least one paging sequence indicated by the first set. Optionally, the first mapping function can make the identifiers of multiple paging sequences different; in other words, the identifiers of multiple paging sequences determined based on the first mapping function are different. Optionally, the first mapping function can be predefined or configured by a network device (e.g., the first network device), without limitation. For example, the relevant information of the first mapping function can be carried by the SIB, or by the MIB, or by higher-layer signaling, without limitation. For higher-layer signaling, please refer to the foregoing content, which is not limited.

[0244] In one example, the identifier of at least one paging sequence indicated by the first set can satisfy the following formula (6). PAGING id =f PAGING Formula (6) (E_RNTI,X,y)

[0245] Among them, PAGING id E_RNTI is the identifier of at least one paging sequence indicated by the first set, X is the number of paging sequences supported for transmission in multiple cells or a first area, y is the number of at least one paging sequence indicated by the first set, and f is the identifier of at least one paging sequence indicated by the first set. PAGING (·) represents the first mapping function. For example, f... PAGING (·) can satisfy: Where mod(·) is the modulo operation. This is for rounding down.

[0246] In another example, the identifier of at least one paging sequence indicated by the first set can satisfy the following formula (7). PAGING id =f PAGING (E_RNTI,X) Formula (7)

[0247] Among them, PAGING id E_RNTI is the identifier of at least one paging sequence indicated by the first set, where E_RNTI is the first identifier, X is the number of paging sequences supported for transmission in multiple cells or a first area, and f is the number of paging sequences supported for transmission in multiple cells or a first area. PAGING (·) represents the first mapping function. For example, f... PAGING (·) can satisfy: in, is the floor function.

[0248] Optionally, assuming that the number of paging sequences supported for transmission in multiple cells or the first area is multiple, there may be a first correspondence between the identifiers of the multiple paging sequences and the relevant parameters of the W sequence. This first correspondence may be predefined, or may also be configured by a network device (e.g., the first network device), without limitation. For example, the information of the first correspondence may be carried by the SIB, or may also be carried by the MIB, or may also be carried by higher-layer signaling, without limitation.

[0249] In one example, the multiple paging sequences include a first paging sequence and a second paging sequence, and the first correspondence may be: the identifier of the first paging sequence is less than the identifier of the second paging sequence, and the first parameter used to generate the first paging sequence is also less than the first parameter used to generate the second paging sequence. This first parameter belongs to the relevant parameters of the W sequence. For example, the first parameter may be the coefficient of the i-th term used when generating the multiple paging sequences, where i is an integer greater than 0 and less than or equal to d.

[0250] For example, the identifier of the first paging sequence is denoted as id1, the identifier of the second paging sequence is denoted as id2, and the highest-degree term for generating the paging sequence based on the W sequence is a cubic term, as shown in formula (4). The first parameter is the coefficient of the cubic term, the first parameter used to generate the first paging sequence is denoted as μ1, and the first parameter used to generate the second paging sequence is denoted as μ2. Then the first correspondence may be: id1 < id2, μ1 < μ2; or, the first parameter is the coefficient of the quadratic term, the first parameter used to generate the first paging sequence is denoted as γ1, and the first parameter used to generate the second paging sequence is denoted as γ2. Then the first correspondence may be id1 < id2, μ1 = μ2, γ1 < γ2; or, the first parameter is the coefficient of the linear term, the first parameter used to generate the first paging sequence is denoted as τ1, and the first parameter used to generate the second paging sequence is denoted as τ2. Then the first correspondence may be id1 < id2, μ1 = μ2, γ1 = γ2, τ1 < τ2.

[0251] In another example, the multiple paging sequences include a first paging sequence and a second paging sequence, and the first correspondence may be: the identifier of the first paging sequence is less than the identifier of the second paging sequence, and the first parameter used to generate the first paging sequence is greater than the first parameter used to generate the second paging sequence. This first parameter belongs to the relevant parameters of the W sequence. For example, the first parameter may be the coefficient of the i-th term used when generating the multiple paging sequences, where i is an integer greater than 0 and less than or equal to d.

[0252] For example, the identifier of the first paging sequence is denoted as id1, and the identifier of the second paging sequence is denoted as id2. The highest-order term of the paging sequence generated based on the W sequence is the quadratic term, as shown in formula (3). The first parameter is the coefficient of the quadratic term. The first parameter used to generate the first paging sequence is denoted as γ1, and the first parameter used to generate the second paging sequence is denoted as γ2. Then the first correspondence can be id1.<id2,γ1> γ2; or, the first parameter is the coefficient of the first-order term, the first parameter used to generate the first paging sequence is denoted as τ1, and the first parameter used to generate the second paging sequence is denoted as τ2, then the first correspondence can be id1.<id2,γ1=γ2,τ1> τ2.

[0253] 2. The first resource is associated with the first identifier.

[0254] The association of a first resource with a first identifier can be understood as follows: the first resource is determined by the first identifier. Accordingly, the first terminal device can determine the first resource based on the first identifier. Optionally, the identifiers of some or all of the resources in the first resource can be determined by the first identifier. For example, the identifier of at least one resource can be determined by the first identifier; this at least one resource belongs to the first resource and can be used to carry at least one paging sequence indicating a first set. Accordingly, the first terminal device can determine the resource used to carry at least one paging sequence based on the first identifier.

[0255] In one embodiment, the identifier of at least one resource can be determined by a first identifier and second information. Accordingly, a first terminal device can determine the identifier of at least one resource based on the first identifier and the second information. The second information may include the quantity of the at least one resource, or a second quantity, or both the quantity of at least one resource and the second quantity. The second quantity can be understood as the quantity of resources used to carry paging sequences supporting transmission in multiple cells or a first area. The resources used to carry paging sequences supporting transmission in multiple cells or a first area include at least one random access resource used to carry at least one paging sequence indicated by a first set.

[0256] For example, the identifier of the at least one resource can be determined by a first identifier, second information, and a second mapping function. Accordingly, the first terminal device can determine the identifier of at least one resource based on the first identifier, second information, and second mapping relationship. For example, the first terminal device can substitute the first identifier and second information into the second mapping function to obtain the identifier of at least one resource. Optionally, the second mapping function can ensure that the identifiers of resources corresponding to different first terminal devices are different under the same sequence of identifiers. In other words, for different first terminal devices, if the same sequence is configured, the identifiers of multiple resources determined based on the second mapping function are different. Optionally, the second mapping function can be predefined or configured by a network device (e.g., the first network device), without limitation. For example, the relevant information of the second mapping function can be carried by the SIB, or by the MIB, or by higher-layer signaling, without limitation.

[0257] In one example, the identifier of at least one resource can satisfy the following formula (8). R id =g PAGING (E_RNTI,K) Formula (8)

[0258] Among them, R id For at least one resource identifier, E_RNTI is the first identifier, K is the number of resources used to carry paging sequences supporting transmission in multiple cells or a first area, and g is the number of resources used to carry paging sequences supporting transmission in multiple cells or a first area. PAGING (·) represents the second mapping function. For example, g... PAGING (·) can satisfy: in, This is for rounding down.

[0259] In another example, the identifier of at least one resource can satisfy the following formula (9). R id =g PAGING (E_RNTI,K,z) Formula (9)

[0260] Among them, R id For the identification of at least one resource, E_RNTI is the first identifier, K is the number of resources used to carry paging sequences supporting transmission in multiple cells or a first area, z is the number of resources used to carry at least one paging sequence indicating a first set, and g is the number of resources used to carry at least one paging sequence indicating a first set. PAGING (·) represents the second mapping function. For example, g... PAGING (·) can satisfy: Where mod(·) is the modulo operation. This is for rounding down.

[0261] 3. The paging sequence reception method is associated with the first identifier.

[0262] The paging sequence reception method is associated with the first identifier, which can be understood as: the paging sequence reception method can be determined by the first identifier. Accordingly, the first terminal device can determine the paging sequence reception method according to the first identifier. Among them, the paging sequence reception method can be to use (or adopt) asynchronous mode to receive the paging sequence, or it can be to use (or adopt) synchronous mode to receive the paging sequence, as shown in Figure 8. As shown in Figure 8 (1), when using asynchronous mode to receive the paging sequence, the first terminal device does not need to synchronize with the network device (the second network device is shown as an example in Figure 8) to receive the paging sequence, or in other words, the first terminal device does not need to receive the synchronization signal of the network device to receive the paging sequence. The implementation method is simple, which can reduce paging delay and reduce the synchronization frequency between the terminal device and the network device, which is beneficial to reduce the power consumption of the terminal device and the network device. As shown in Figure 8 (2), when using synchronous mode to receive the paging sequence, the first terminal device needs to synchronize with the network device before receiving the paging sequence. Compared with asynchronous mode, synchronous mode can support more paging sequences and can provide services to more users.

[0263] Optionally, the first terminal device and the network device can be synchronized through a synchronization signal block (SSB) or through a synchronization sequence indicated by the first set, without limitation.

[0264] Optionally, the information regarding the association between the paging sequence reception method and the first identifier can be predefined or configured by the network device (e.g., the first network device), without limitation. Optionally, the information regarding the association between the paging sequence reception method and the first identifier can be carried by the SIB, or by the MIB, or by higher-layer signaling, without limitation.

[0265] Optionally, the method of receiving the paging sequence can be replaced by the method of receiving the paging message. Optionally, receiving the paging sequence can be replaced by receiving the paging message.

[0266] In the above implementation, at least one of the receiving methods of the first set, the first resource, or the paging sequence can be associated with the first identifier. In this way, the first terminal device can determine at least one of the receiving methods of the first set, the first resource, or the paging sequence based on the first identifier, which can reduce signaling interaction, save network resources, and improve communication performance.

[0267] As mentioned above, the method of receiving the paging sequence can be determined by a first identifier. In another possible implementation, the method of receiving the paging sequence can also be indicated by a network device. For example, the first network device can send a third message; correspondingly, the first terminal device receives the third message. This third message can be used to instruct the first terminal device to receive the paging sequence in synchronous mode, or the third message can be used to instruct the first terminal device to receive the paging sequence in asynchronous mode. Optionally, this third message can be carried by the SIB, or by the MIB, or by higher-layer signaling, without limitation.

[0268] In one possible implementation, the first network device can send a fourth message; correspondingly, the first terminal device can receive the fourth message. This fourth message can be used to indicate whether the first network device supports a first transmission mode, and / or whether the first network device supports a first access method. Optionally, the fourth message can be carried by the MIB, or by the SIB, or by higher-layer signaling, without limitation. For example, the first network device can send the fourth message before sending the second message. In one example, the fourth message indicates that the first network device does not support the first transmission mode, and the first terminal device can determine not to use the first transmission mode. For example, the fourth message indicates that the first network device does not support the first transmission mode, and the first terminal device can determine to use the second transmission mode. In yet another example, the fourth message indicates that the first network device supports the first transmission mode, and the first terminal device can determine to use the first transmission mode. In yet another example, the fourth message indicates that the first network device does not support the first access method, and the first terminal device can determine not to use (or not to employ) the first access method. For example, the fourth message indicates that the first network device does not support the first access method, and the first terminal device can determine to use (or employ) the second access method. In another example, the fourth message indicates that the first network device supports the first access method, and the first terminal device can determine whether to use (or adopt) the first access method. This application embodiment describes an example where the fourth message indicates that the first network device supports the first transmission mode and / or the first access method.

[0269] Optionally, the second transmission mode can be replaced by: access (or request access, or enter, or cut in, or request cut in, etc.) second transmission mode. Optionally, the first transmission mode can be replaced by: access (or request access, or enter, or cut in, or request cut in, etc.) first transmission mode.

[0270] In one possible implementation, the first terminal device can send a fifth message to the first network device; correspondingly, the first network device can receive the fifth message from the first terminal device. This fifth message can be used to instruct the first terminal device to use a first transmission mode, and / or to instruct the first terminal device to use a first access method; alternatively, the fifth message can be used to instruct the first terminal device not to use the first transmission mode, and / or to instruct the first terminal device not to use the first access method. For a description of using the first transmission mode, please refer to the foregoing related content, which will not be repeated hereafter. For ease of understanding, unless otherwise specified, the following description will use the example of the fifth message instructing the first terminal device to use the first transmission mode and / or the first access method. For example, if the first network device supports using the first transmission mode and / or supports using the first access method, the first terminal device can send a fifth message to the first network device. For example, before receiving the second message, the first terminal device can send a fifth message to the first network device.

[0271] Optionally, the fifth message, used to instruct the first terminal device not to use the first transmission mode, can be replaced by: the fifth message used to instruct the first terminal device to use the second transmission mode. Alternatively, the fifth message, used to instruct the first terminal device not to use the first access method, can be replaced by: the fifth message used to instruct the first terminal device to use the second access method. For a description of using the second transmission mode, please refer to the aforementioned related content, and it will not be repeated here.

[0272] Optionally, the fifth message can be used to request configuration information for the first transmission mode. The configuration information for the first transmission mode may include at least one of the following: a first identifier, a first set, or a first resource. For example, the first terminal device sends the fifth message to the first network device; the first network device receives the fifth message and sends a second message to the first terminal device based on the fifth message; correspondingly, the first terminal device receives the second message from the first network device.

[0273] Optionally, the fifth message can be carried by RRC signaling, or it can be a random access message (or a random access request message), or it can be message 3 (Msg3), without limitation. For example, after initial access is completed, or after the first terminal device establishes an RRC connection with the first network device, the first terminal device can send a fifth message to the first network device, which is carried by RRC signaling. As another example, during the initial access process, the first terminal device can send a fifth message to the first network device, which can be a random access message, or it can also be Msg3. Optionally, the fifth message being a random access message can be replaced by: the fifth message being a physical random access channel (PRACH); or it can also be replaced by: the fifth message being carried by PRACH.

[0274] In one possible implementation, the first network device can send a sixth message; correspondingly, the first terminal device can receive the sixth message, which may include at least one of the following: identifiers of M network devices, identifiers of multiple cells, information of a first area, information indicating whether the first transmission mode is allowed, or information indicating whether the first access method is allowed. Optionally, the sixth message may be carried by an SIB, or by a MIB, or by higher-layer signaling, without limitation. For example, the first network device can send the sixth message before sending the second message. In one example, the first network device supports the use of the first transmission mode, and the sixth message includes information indicating that the first transmission mode is not allowed; the first terminal device can determine not to use the first transmission mode, for example, to determine to use the second transmission mode. In another example, the first network device supports the use of the first transmission mode, and the sixth message includes information indicating that the first transmission mode is allowed; the first terminal device can determine to use the first transmission mode. In yet another example, the first network device supports the use of the first access method, and the sixth message includes information indicating that the first access method is not allowed; the first terminal device can determine not to use the first access method, for example, to determine to use the second access method. In another example, the first network device supports the use of the first access method, and the sixth message includes information indicating that the use of the first access method is permitted, so that the first terminal device can determine to use the first access method.

[0275] In one possible implementation, the first network device can send a seventh message to the first terminal device; correspondingly, the first terminal device can receive the seventh message from the first network device. For example, the first network device can send the seventh message to the first terminal device before receiving the fifth message. The seventh message may include information related to the first access method. Optionally, the seventh message may also include information related to the second access method. Optionally, the seventh message may be carried by the SIB, or by the MIB, or by higher-layer signaling, without limitation.

[0276] In one possible implementation, the first terminal device can communicate with at least one of the M network devices according to a second message, as shown in Figure 6. For example, the first terminal device can receive a paging message from at least one of the M network devices according to the second message. Optionally, the at least one network device includes the first network device, that is, the first terminal device can receive a paging message from the first network device according to the second message. Figure 6 illustrates an example of the first terminal device synchronizing with a second network device among the M network devices. The second network device and the first network device can be the same network device, or they can be two different network devices. Figure 6 illustrates an example where the second network device and the first network device are two different network devices.

[0277] S602: The first terminal device determines the first paging sequence.

[0278] S602 is an optional step, indicated by dashed lines in Figure 6. For example, the first terminal device can determine the first paging sequence based on a first set. For example, the sequence indicated by the first set includes at least one set of paging sequences, and the first terminal device can determine the first paging sequence based on at least one set of paging sequences. For example, the sequence indicated by the first set includes at least one paging sequence, and the first terminal device can determine the first paging sequence based on at least one paging sequence. For example, the first terminal device can determine the first paging sequence based on a first identifier.

[0279] The first set indicates at least one paging sequence, which may be one of the at least one paging sequences. Alternatively, the first set indicates at least a group of paging sequences, which may be one of the at least one paging sequences included in the at least one group of paging sequences, or it may be a group of paging sequences in the at least one group of paging sequences. The first paging sequence can be used to page at least one terminal device, which includes a first terminal device. For example, the first paging sequence can be used to page at least one terminal device in multiple cells or a first area.

[0280] Optionally, the first paging sequence may be generated based on a W sequence, or it may be generated based on a set of W sequences, which includes at least one sequence.

[0281] Figure 6 illustrates an example of a first terminal device determining a first paging sequence based on at least one set of paging sequences. It is understood that the embodiments of this application do not limit the implementation method of the first terminal device determining the first paging sequence.

[0282] S603: The second network device determines the first paging sequence.

[0283] S603 is an optional step, indicated by dashed lines in Figure 6. For example, the second network device can determine the first paging sequence based on the first set. For example, the sequence indicated by the first set includes at least one set of paging sequences, and the second network device can determine the first paging sequence based on this at least one set of paging sequences. For example, the sequence indicated by the first set includes at least one paging sequence, and the second network device can determine the first paging sequence based on this at least one paging sequence. For example, the second network device can determine the first paging sequence based on a first identifier. The cell corresponding to the second network device belongs to multiple cells, or in other words, the second network device belongs to M network devices. The second network device and the first network device can be the same network device, or they can be two different network devices. Figure 6 illustrates an example where the second network device and the first network device are two different network devices.

[0284] In one possible implementation, the second network device and the first network device are two different network devices. The second network device can obtain the configuration information of the first terminal device in the first transmission mode by interacting with the first network device, namely at least one of the first identifier, the first set, or the first resource. It is understood that the embodiments of this application do not limit the implementation method of the second network device obtaining the configuration information of the first terminal device in the first transmission mode. For example, the second network device can also obtain the configuration information of the first terminal device in the first transmission mode from a management device. The management device can be used to maintain (or manage) the configuration information of at least one terminal device in the first transmission mode, including the first terminal device. For example, the first network device can send the configuration information of the first terminal device in the first transmission mode to the management device; correspondingly, the management device can receive the configuration information of the first terminal device in the first transmission mode from the first network device and store it. The embodiments of this application do not limit the specific implementation form of the management device.

[0285] Figure 6 illustrates an example of a second network device determining a first paging sequence based on at least one set of paging sequences. It is understood that the embodiments of this application do not limit the implementation method of the second network device determining the first paging sequence.

[0286] S604: The second network device sends a paging message. For example, the second network device sends a paging message according to the first paging sequence.

[0287] Accordingly, the first terminal device receives the paging message. For example, the first terminal device receives the paging message according to the first paging sequence.

[0288] The paging message is carried by a first resource, or in other words, the first paging sequence is carried by a first resource. For example, the paging message can be obtained by mapping the first paging sequence to a first resource. For instance, a second network device obtains the paging message by performing resource mapping on the first paging sequence, without needing to encode the first paging sequence. The method for receiving the paging message is described in the preceding section on the method for receiving paging sequences, and will not be repeated here.

[0289] In S604, the first terminal device receives a paging message according to the first paging sequence, so that the first terminal device can determine that it has been paging by checking the paging message mapped from the first paging sequence. Compared with the paging mechanism that checks the DCI first and then the PDSCH, the number of checks by the terminal device can be reduced, thereby simplifying the paging mechanism, reducing the power consumption of the terminal device, and thus improving communication performance.

[0290] For example, the first terminal device can check (or blindly check) the paging message according to the first paging sequence, and determine whether to receive the paging message based on the check result. For instance, if the check result indicates that the paging message is mapped from the first paging sequence, the first terminal device determines that it has been paged and receives the paging message. As another example, if the check result indicates that the sequence number message is not mapped from the first paging sequence, the first terminal device determines that it has not been paged and discards the paging message. This application embodiment describes an example where the check result indicates that the paging message is mapped from the first paging sequence.

[0291] In one example, the first paging sequence is generated based on a W sequence, and the first terminal device performs a blind check on the paging message; if the W sequence is detected, it is determined that the user has been paging; or, if the W sequence is not detected, it is determined that the user has not been paging.

[0292] In another example, the first paging sequence is generated based on a set of W sequences, which includes multiple sequences. The first terminal device performs blind detection on the paging message. If all of the multiple sequences are detected, it is determined that the user has been paging; or, if at least one of the multiple sequences is not detected, it is determined that the user has not been paging.

[0293] It is understandable that the first terminal device can determine the first paging sequence from the first set and perform blind detection on the received paging message based on the first paging sequence; or the paging message is mapped from multiple paging sequences, and the first terminal device can also select one paging sequence from the multiple paging sequences and perform blind detection on the received paging message based on the one paging sequence, without restriction.

[0294] Figure 9 is a schematic diagram of an inspector provided in an embodiment of this application. This inspector can be deployed in a first terminal device. As shown in Figure 9, a blind check is performed on the paging message received by the receiving module based on a first paging sequence. The blind check result is then subjected to a fast Fourier transform (FFT) and input into a decision module, which determines whether the device has been paging, etc.

[0295] It is understood that the execution order of the steps shown in Figure 6 is merely an example and is not limited thereto. For example, the first terminal device may determine the first paging sequence first, and then the second network device may determine the first paging sequence; or, the second network device may determine the first paging sequence first, and then the first terminal device may determine the first paging sequence, that is, S603 may be executed first, and then S602 may be executed; or, the first terminal device and the second network device may determine the first paging sequence simultaneously, without restriction.

[0296] In the method embodiment shown in Figure 6, the first resource can be used to carry at least one set of paging sequences for paging the first terminal device. This simplifies the resource configuration process and paging mechanism, thereby improving communication performance. Furthermore, the first resource can be used to carry the at least one set of paging sequences across multiple cells. This allows network devices corresponding to these multiple cells to paging the first terminal device using the first resource and the at least one set of paging sequences, eliminating the need for frequent configuration of paging sequences and the resources carrying them. This simplifies mobility management and updates, reduces power consumption of both terminal and network devices, and ultimately improves communication performance.

[0297] The embodiments provided in this application describe the methods provided by the embodiments of this application from the perspective of interaction between multiple communication devices (e.g., a first terminal device and a first network device). The steps performed by the communication devices (e.g., the first terminal device or the first network device) can be implemented by different functional entities that make up the communication devices. The communication devices (e.g., the first terminal device or the first network device) may include hardware structures and / or software modules, implementing the above-mentioned functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular function is implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0298] The communication device used to implement the above method in the embodiments of this application is described below with reference to the accompanying drawings. Therefore, the content above can be used in subsequent embodiments, and repeated content will not be described again.

[0299] Figure 10 illustrates a schematic diagram of a communication device 1000. This communication device 1000 can implement the functions or steps implemented by the first terminal device or the first network device in the above-described method embodiments.

[0300] For example, when the communication device 1000 is used to implement the functions or steps implemented by the first terminal device in the above method embodiments, the communication device 1000 may be the first terminal device or a component in the first terminal device.

[0301] For example, when the communication device 1000 is used to implement the functions or steps implemented by the first network device in the above-described method embodiments, the communication device 1000 may be the first network device or a component in the first network device (such as DU and / or RU, etc.).

[0302] In one embodiment, the communication device 1000 may include a processing module 1001 and a transceiver module 1002; or it may include a processing module 1001 but not a transceiver module 1002; or it may include a transceiver module 1002 but not a processing module 1001. Wherein:

[0303] The processing module 1001 can be used to support the communication device 1000 in performing the processing actions in the above method embodiments. The processing module 1001 can be implemented by one or more processors. For example, the processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), microprocessors (MCUs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0304] In this application, the processing module 1001 may also be referred to as a processing unit, etc., without limitation.

[0305] Transceiver module 1002 is used for inputting and / or outputting information. Input information can be replaced by received information, and output information can be replaced by transmitted information. When outputting information, transceiver module 1002 can output information to other devices outside of communication device 1000, or to other units within communication device 1000. In some embodiments, transceiver module 1002 can be implemented through at least one of a physical interface, a communication module, a communication interface, and an input / output interface. In other embodiments, transceiver module 1002 can be implemented through interface circuitry, such as a mobile communication module. The mobile communication module may include one or more of at least one antenna, at least one filter, a switch, a power amplifier, and a low-noise amplifier (LNA).

[0306] Optionally, the transceiver module 1002 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments. It should be noted that the communication device 1000 may include a sending module but not a receiving module. Alternatively, the communication device 1000 may include a receiving module but not a sending module. Specifically, it depends on whether the above scheme executed by the communication device 1000 includes sending and receiving actions.

[0307] In this application, the transceiver module 1002 may also be referred to as a communication interface, a communication module, a transceiver unit, an interface module, an interface unit, or a communication unit, etc., without limitation.

[0308] It should be noted that the communication device 1000 may include a processing module 1001, but not a transceiver module 1002. Alternatively, the communication device 1000 may include a transceiver module 1002, but not a processing module 1001. Specifically, it depends on whether the above-described scheme executed by the communication device 1000 includes processing and transceiver actions.

[0309] Optionally, the communication device 1000 may further include a storage module, not shown in FIG10. The storage module may be used to store instructions and / or data, and the processing module 1001 may read the instructions and / or data in the storage module to enable the communication device 1000 to implement the aforementioned method embodiment.

[0310] Optionally, the communication device 1000 may be a chip system, the transceiver module 1002 may be the input / output interface of a chip (e.g., a baseband chip), and the processing module 1001 may be the processor of the chip system.

[0311] In one possible design, when the communication device 1000 is a communication equipment or a communication module within a communication equipment, the functionality of the processing module 1001 can be implemented by one or more processors. Exemplarily, the processor may include a modem chip (also known as a baseband chip), or a system-on-a-chip (SoC) chip or system-in-package (SIP) chip containing a modem core. The functionality of the transceiver module 1002 can be implemented by transceiver circuitry.

[0312] In one possible design, when the communication device 1000 is a circuit or chip responsible for communication functions in a communication device, such as a modem chip or a system-on-a-chip (SoC) or SIP chip containing a modem core, the function of the processing module 1001 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the transceiver module 1002 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.

[0313] The communication device can be a terminal device or an access network device.

[0314] In the first implementation, the communication device 1000 can perform the functions of a first terminal device, executing the following: a processing module 1001 for a first paging sequence; and a transceiver module 1002 for receiving a paging message according to the first paging sequence, wherein the paging message is carried by a first resource, the first resource being used to carry at least one set of paging sequences, each of the at least one set of paging sequences including at least one paging sequence, wherein the first paging sequence is one of the at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is one set of paging sequences in the at least one set of paging sequences.

[0315] Optionally, the at least one paging sequence is used to page the first terminal device. For example, the at least one paging sequence is used to page the first terminal device within multiple cell boundaries.

[0316] In one possible implementation, the transceiver module 1002 is further configured to receive a second message from the first network device, the second message including at least one of the following: a first identifier for indicating information of at least one set of paging sequences, or the first resource; wherein the first identifier is used to identify the first terminal device in a plurality of cells, the plurality of cells including the cell corresponding to the first network device.

[0317] In one possible implementation, the first resource is used to carry the at least one set of paging sequences, which can be replaced by: the first resource being used to carry the at least one set of paging sequences in multiple cells.

[0318] In the second implementation, the communication device 1000 can implement the functions of the first terminal device, performing the following: a transceiver module 1002 is used to receive a second message from the first network device, the second message including at least one of the following: a first identifier, used to indicate information of at least one set of paging sequences, or a first resource; wherein, the first identifier is used to identify the first terminal device in multiple cells, each of the at least one set of paging sequences includes at least one paging sequence, the first resource is used to carry the at least one set of paging sequences in the multiple cells, the multiple cells including the cell corresponding to the first network device; and receiving paging messages from the network device corresponding to the multiple cells according to the second message.

[0319] Optionally, the at least one paging sequence is used to page the first terminal device. For example, the at least one paging sequence is used to page the first terminal device within multiple cell boundaries.

[0320] In one possible implementation, when receiving paging messages from network devices corresponding to the plurality of cells according to the second message, the processing module 1001 is configured to determine a first paging sequence, wherein the first paging sequence is a paging sequence among at least one paging sequence included in at least one set of paging sequences, or the first paging sequence is a set of paging sequences among the at least one set of paging sequences; the transceiver module 1002 is configured to receive a paging message according to the first paging sequence, wherein the paging message is carried by a first resource.

[0321] Optionally, based on the first or second implementation described above, when receiving a paging message according to the first paging sequence, the processing module 1001 is configured to: check the paging message according to the first paging sequence; and receive the paging message according to the check result, wherein the check result indicates that the paging message is mapped from the first paging sequence.

[0322] Optionally, based on the first or second implementation described above, the paging message is obtained by mapping the first paging sequence to the first resource.

[0323] Optionally, based on the first or second implementation described above, each paging sequence in at least one paging sequence included in the at least one set of paging sequences is used to page the first terminal device in multiple cells; or, each paging sequence in the at least one set of paging sequences is used to page the first terminal device in multiple cells.

[0324] Optionally, based on the first implementation manner or the second implementation manner described above, the at least one set of paging sequences is generated based on the W sequence.

[0325] Optionally, based on the first implementation manner or the second implementation manner described above, the first paging sequence is generated based on one W sequence; or the first paging sequence is generated based on a set of W sequences, and the set of W sequences includes at least one sequence.

[0326] Optionally, based on the first implementation manner or the second implementation manner described above, the highest-degree term of the W sequence is a quadratic term, or the highest-degree term of the W sequence is a cubic term, or the highest-degree term of the W sequence is a quartic term. Generally, the larger the highest-degree term of the W sequence, the more terms the polynomial used by the W sequence has, and the more different sequences generated based on the W sequence.

[0327] Optionally, based on the first implementation manner or the second implementation manner described above, the at least one set of paging sequences includes multiple paging sequences, and the highest-degree terms used when generating the multiple paging sequences based on the W sequence are the same.

[0328] Optionally, based on the first implementation manner or the second implementation manner described above, the at least one set of paging sequences includes multiple paging sequences, the second-highest terms used when generating the multiple paging sequences based on the W sequence are different, and / or the first-degree terms used when generating the multiple paging sequences based on the W sequence are different.

[0329] Optionally, based on the first implementation manner or the second implementation manner described above, the W sequence consists of the generation length of the sequence and the length of the sequence within one generation period.

[0330] Optionally, based on the first implementation manner or the second implementation manner described above, the W sequence may satisfy the following formula:

[0331] p(n) = p d n d + p d-1 n d-1 + … + p1n + p0;

[0332] where x(n) is the W sequence, n is an integer greater than 0 and less than or equal to N, N is the generation length of the sequence, P is the length of the sequence within one generation period, p i is a non-zero integer, 1 < i ≤ d, d is an integer greater than 1, and p1 and p0 are both constants.

[0333] Optionally, based on the first implementation manner or the second implementation manner described above, if d is 2, the W sequence may be

[0334] Alternatively, if d is 3, the W sequence can be

[0335] Alternatively, if d is 4, the W sequence can be

[0336] Where α is an integer greater than or equal to 0 and less than or equal to (P-1), μ is an integer greater than or equal to 0 and less than or equal to (P-1), γ is an integer greater than or equal to 0 and less than or equal to (P-1), τ is an integer greater than or equal to 0 and less than or equal to (Q-1), Q is the number of cyclic shifts in the time domain, and θ is a constant.

[0337] Optionally, based on the first or second implementation method described above, the length of the sequence within a generation period is a prime number.

[0338] Optionally, based on the first or second implementation described above, the transceiver module 1002 is further configured to receive a first message, the first message being used to indicate relevant parameters of the W sequence, the relevant reference including at least one of the following: the mapping length of the sequence, the generation length of the sequence, d, Q, α, μ, γ, τ, or θ.

[0339] Optionally, based on the first or second implementation described above, the at least one paging sequence includes the first paging sequence and the second paging sequence, wherein the information indicated by the first paging sequence is different from the information indicated by the second paging sequence.

[0340] Optionally, based on the first or second implementation described above, the at least one paging sequence includes the first paging sequence and the second paging sequence, wherein the resources carrying the first paging sequence are the same as the resources carrying the second paging sequence, or the resources carrying the first paging sequence are different from the resources carrying the second paging sequence.

[0341] Optionally, based on the first or second implementation described above, the first paging sequence is used for at least one of the following: paging at least one terminal device, data transmission, notification of system information updates, or control information transmission, wherein the at least one terminal device includes the first terminal device.

[0342] Optionally, based on the first or second implementation method described above, the first terminal device supports dedicated paging.

[0343] Optionally, based on the first or second implementation described above, the first identifier of the first terminal device is determined by the identifier of the first cell and the RNTI of the first terminal device; or, the first identifier of the first terminal device is determined by the identifier of the first region, the identifier of the first cell, and the RNTI of the first terminal device; wherein, the first identifier is used to identify the first terminal device in multiple cells, the first region is the area covered by the network device corresponding to the multiple cells, and the first cell belongs to the multiple cells.

[0344] Optionally, based on the first or second implementation described above, the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by a first identifier; and / or, the identifier of at least one resource is determined by the first identifier, the at least one resource being used to carry at least one paging sequence included in the at least one set of paging sequences; wherein, the first identifier is used to identify the first terminal device within multiple cells.

[0345] Optionally, based on the first or second implementation described above, the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by a first identifier, which can be replaced by: the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by the first identifier and first information, wherein the first information includes the number of paging sequences included in the at least one set of paging sequences and / or a first quantity, wherein the first quantity is the number of paging sequences that support transmission within the plurality of cells.

[0346] Optionally, based on the first or second implementation described above, the identifier of the at least one resource is determined by the first identifier, which can be replaced by: the identifier of the at least one resource is determined by the first identifier and second information, wherein the second information includes the quantity of the at least one resource and / or a second quantity, wherein the second quantity is the quantity of resources used to carry paging sequences transmitted in the plurality of cells.

[0347] Optionally, based on the first or second implementation described above, the receiving method of the paging message is determined by a first identifier. The receiving method is to receive the paging message using a synchronous mode or to receive the paging message using an asynchronous mode. The first identifier is used to identify the first terminal device in multiple cells.

[0348] Optionally, based on the first or second implementation described above, the transceiver module 1002 is further configured to receive a third message, wherein the third message is configured to instruct the first terminal device to receive the paging message in synchronous mode, or the third message is configured to instruct the first terminal device to receive the paging message in asynchronous mode.

[0349] In the third implementation, the communication device 1000 can perform the functions of the first network device, executing the following: a processing module 1001, used to determine a first paging sequence; a transceiver module 1002, used to send a paging message to a first terminal device according to the first paging sequence, wherein the paging message is carried by a first resource, the first resource is used to carry at least one set of paging sequences, each set of paging sequences in the at least one set of paging sequences includes at least one paging sequence, wherein the first paging sequence is one of the at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is one set of paging sequences in the at least one set of paging sequences.

[0350] Optionally, the at least one paging sequence is used to page the first terminal device. For example, the at least one paging sequence is used to page the first terminal device within multiple cell boundaries.

[0351] In one possible implementation, the first resource is used to carry the at least one set of paging sequences, which can be replaced by: the first resource being used to carry the at least one set of paging sequences in multiple cells.

[0352] In one possible implementation, the transceiver module 1002 is further configured to send a second message to the first terminal device, the second message including at least one of the following: a first identifier, used to indicate information of at least one set of paging sequences, or the first resource; wherein the first identifier is used to identify the first terminal device in a plurality of cells, the plurality of cells including the cell corresponding to the first network device.

[0353] In the fourth implementation, the communication device 1000 can implement the functions of the first network device, performing the following: a transceiver module 1002 is used to send a second message to the first terminal device, the second message including at least one of the following: a first identifier, used to indicate information of at least one set of paging sequences, or a first resource; wherein, the first identifier is used to identify the first terminal device in multiple cells, each of the at least one set of paging sequences includes at least one paging sequence, the first resource is used to carry the at least one set of paging sequences in the multiple cells, the multiple cells including the cell corresponding to the first network device; and a paging message is sent to the first terminal device according to the second message.

[0354] Optionally, the at least one paging sequence is used to page the first terminal device. For example, the at least one paging sequence is used to page the first terminal device within multiple cell boundaries.

[0355] In one possible implementation, when sending a paging message to the first terminal device according to the second message, the processing module 1001 is configured to determine a first paging sequence, wherein the first paging sequence is a paging sequence among at least one paging sequence included in at least one set of paging sequences, or the first paging sequence is a set of paging sequences among the at least one set of paging sequences; the transceiver module 1002 is configured to send a paging message to the first terminal device according to the first paging sequence, wherein the paging message is carried by the first resource.

[0356] Optionally, based on the third or fourth implementation method described above, the paging message is obtained by mapping the first paging sequence to the first resource.

[0357] Optionally, based on the third or fourth implementation described above, each paging sequence in at least one paging sequence included in the at least one set of paging sequences is used to page the first terminal device in multiple cells; or, each paging sequence in the at least one set of paging sequences is used to page the first terminal device in multiple cells.

[0358] Optionally, based on the third or fourth implementation method described above, the at least one paging sequence is generated based on the W sequence.

[0359] Optionally, based on the third or fourth implementation method described above, the first paging sequence is generated based on a W sequence; or, the first paging sequence is generated based on a set of W sequences, wherein the set of W sequences includes at least one sequence.

[0360] Optionally, based on the third or fourth implementation method described above, the highest-order term of the W sequence is a quadratic term, or the highest-order term of the W sequence is a cubic term, or the highest-order term of the W sequence is a quartic term.

[0361] Optionally, based on the third or fourth implementation method described above, the at least one paging sequence includes multiple paging sequences, and the highest-order term used when generating the multiple paging sequences based on the W sequence is the same.

[0362] Optionally, based on the third or fourth implementation method described above, the at least one paging sequence includes multiple paging sequences, and the second-highest term used when generating the multiple paging sequences based on the W sequence is different, and / or the first-order term used when generating the multiple paging sequences based on the W sequence is different.

[0363] Optionally, based on the third or fourth implementation method described above, the W sequence consists of the generation length of the sequence and the length of the sequence within a generation period.

[0364] Optionally, based on the above third implementation method or the fourth implementation method, the W sequence satisfies the following formula:

[0365] p(n) = p d n d + p d-1 n d-1 +…+ p1n + p0;

[0366] Where, x(n) is the W sequence, n is an integer greater than 0 and less than or equal to N, N is the generation length of the sequence, P is the length of the sequence within one generation period, p i is a non-zero integer, 1 < i ≤ d, d is an integer greater than 1, and both p1 and p0 are constants.

[0367] Optionally, based on the above third implementation method or the fourth implementation method, if d is 2, the W sequence can be

[0368] Or, if d is 3, the W sequence can be

[0369] Or, if d is 4, the W sequence can be

[0370] Where, α is an integer greater than or equal to 0 and less than or equal to (P - 1), μ is an integer greater than or equal to 0 and less than or equal to (P - 1), γ is an integer greater than or equal to 0 and less than or equal to (P - 1), τ is an integer greater than or equal to 0 and less than or equal to (Q - 1), Q is the number of cyclic shifts in the time domain, and θ is a constant.

[0371] Optionally, based on the above third implementation method or the fourth implementation method, the value of the length of the sequence within one generation period is a prime number.

[0372] Optionally, based on the above third implementation method or the fourth implementation method, the transceiver module 1002 is further configured to send a first message to the first terminal device, and the first message is used to indicate the relevant parameters of the W sequence, and the relevant references include at least one of the following: the mapping length of the sequence, the generation length of the sequence, d, Q, α, μ, γ, τ, or θ.

[0373] Optionally, based on the above third implementation method or the fourth implementation method, the at least one set of paging sequences includes the first paging sequence and the second paging sequence, and the information indicated by the first paging sequence is different from the information indicated by the second paging sequence.

[0374] Optionally, based on the third or fourth implementation described above, the first paging sequence is used for at least one of the following: paging at least one terminal device, data transmission, notification of system information updates, or control information transmission, wherein the at least one terminal device includes the first terminal device.

[0375] Optionally, based on the third or fourth implementation method described above, the first identifier of the first terminal device is determined by the identifier of the first cell and the RNTI of the first terminal device; or, the first identifier of the first terminal device is determined by the identifier of the first region, the identifier of the first cell, and the RNTI of the first terminal device; wherein, the first identifier is used to identify the first terminal device in multiple cells, the first region is the area covered by the network device corresponding to the multiple cells, and the first cell belongs to the multiple cells.

[0376] Optionally, based on the third or fourth implementation method described above, the identifier of at least one paging sequence included in the at least one set of paging sequences is determined by a first identifier; and / or, the identifier of at least one resource is determined by the first identifier, the at least one resource being used to carry at least one paging sequence included in the at least one set of paging sequences; wherein, the first identifier is used to identify the first terminal device in multiple cells.

[0377] Optionally, based on the third or fourth implementation described above, the identifier of at least one paging sequence included in the at least one paging sequence is determined by the first identifier, which can be replaced by: the identifier of at least one paging sequence included in the at least one paging sequence is determined by the first identifier and first information, wherein the first information includes the number of paging sequences included in the at least one paging sequence and / or a first quantity, wherein the first quantity is the number of paging sequences that support transmission within the plurality of cells.

[0378] Optionally, based on the third or fourth implementation method described above, the identifier of the at least one resource is determined by the first identifier, which can be replaced by: the identifier of the at least one resource is determined by the first identifier and second information, wherein the second information includes the quantity of the at least one resource and / or a second quantity, wherein the second quantity is the quantity of resources used to carry paging sequences transmitted in the plurality of cells.

[0379] Optionally, based on the third or fourth implementation described above, the transceiver module 1002 is further configured to send a third message to the first terminal device, wherein the third message is configured to instruct the first terminal device to receive the paging message in synchronous mode, or the third message is configured to instruct the first terminal device to receive the paging message in asynchronous mode.

[0380] For a detailed description of the above-mentioned processing module 1001 and transceiver module 1002, please refer to the relevant descriptions in the foregoing embodiments, which will not be repeated here.

[0381] As shown in Figure 11, this application provides a schematic diagram of the structure of another communication device 1100. The communication device 1100 may include a processor 1120, used to implement or support the communication device 1100 in implementing the functions of the first network device or the first terminal device in the aforementioned method embodiments. For details, please refer to the detailed descriptions in the aforementioned method embodiments, which will not be repeated here. For example, the processor 1120 is used to read and execute program instructions through the communication interface 1110, so that the communication device 1100 implements the corresponding method. The processor 1120 may include one or more processors, without limitation.

[0382] It should be noted that the aforementioned functional modules can be implemented by hardware or by a combination of hardware and software, without limitation. Furthermore, when the communication device 1100 includes only the processor 1120, the communication device 1100 can be a chip or a chip system.

[0383] For example, the communication device 1100 can be a chip system. The chip system can be composed of chips or may include chips and other discrete components, without limitation.

[0384] For example, when the communication device 1100 is a chip, the communication interface 1110 can be the chip's input / output interface, where input corresponds to receiving operations and output corresponds to sending operations.

[0385] Optionally, the communication device 1100 may further include a memory 1130 for storing program instructions and / or data. The memory 1130 is coupled to the processor 1120. This coupling can be understood as an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 1120 may operate in conjunction with the memory 1130; the processor 1120 and the memory 1130 may be integrated together or disposed separately.

[0386] Furthermore, the processor 1120 is used to execute program instructions stored in the memory 1130 so that the communication device 1100 implements the corresponding method.

[0387] One or more of the memories in memory 1130 may be included in the processor, or memory 1130 may exist independently, such as off-chip memory, and be connected to processor 1120 via a communication bus (represented by thick line 1140 in Figure 11). Memory 1130 and processor 1120 may also be integrated together.

[0388] Optionally, the communication device 1100 further includes a communication interface 1110 (shown as dashed lines in FIG11) for communicating with other devices via a transmission medium, thereby enabling the devices in the communication device 1100 to communicate with other devices.

[0389] For example, when the communication device 1100 is the first communication device, other devices can be second communication devices, etc. The processor 1120 can use the communication interface 1110 to send and receive data. For example, the processor 1120 can be used to control the communication interface 1110 to receive and / or send signals.

[0390] Specifically, the communication interface 1110 can be a transceiver. In terms of hardware implementation, the transceiver can be used to implement the functions of the transceiver module 1002, and the transceiver is integrated into the communication device 1100 to form the communication interface 1110.

[0391] Optionally, the transceiver may include a transmitter and / or a receiver to respectively implement the sending and receiving operations in the method embodiment; other operations besides sending and receiving may be implemented by the processor 1120.

[0392] It should be noted that the communication interface 1110 may have both sending and receiving functions, enabling the transmission and reception of signals; or it may have a sending function but no receiving function, used to transmit signals; or it may have a receiving function but no sending function, used to receive signals.

[0393] It should be noted that the specific connection medium between the communication interface 1110, processor 1120, and memory 1130 is not limited in the embodiments of this application. In Figure 11, the memory 1130, processor 1120, and communication interface 1110 are connected via a communication bus 1140. The connection methods between other components are merely illustrative and not intended to be limiting. The communication bus 1140 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used in Figure 11, but this does not indicate that there is only one communication bus or one type of communication bus.

[0394] In the embodiments of this application, the processor 1120 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor may be a microprocessor or any conventional processor. The methods disclosed in the embodiments of this application may be executed by the hardware in the processor, or by a combination of hardware and software in the processor.

[0395] In this embodiment, the memory 1130 can be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). The memory can also be any other medium used to carry or store program code in the form of instructions or data structures that can be accessed by a computer; or it can be a circuit or any other device capable of implementing storage functions for storing program instructions and / or data.

[0396] In a first possible implementation, the communication device 1100 may be a first terminal device, used to implement the relevant methods corresponding to the first terminal device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0397] For example, the methods corresponding to the first terminal device in the above embodiments include: determining a first paging sequence; and receiving a paging message according to the first paging sequence, the paging message being carried by a first resource, the first resource being used to carry at least one set of paging sequences, each of the at least one set of paging sequences including at least one paging sequence. Wherein, the first paging sequence is one of the at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is one set of paging sequences in the at least one set of paging sequences.

[0398] In a second possible implementation, the communication device 1100 may be a first terminal device, used to implement the relevant methods corresponding to the first terminal device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0399] For example, the methods corresponding to the first terminal device in the above embodiments include: receiving a second message from a first network device, the second message including at least one of the following: a first identifier for indicating information of at least one set of paging sequences, or a first resource; wherein the first identifier is used to identify the first terminal device in a plurality of cells, each of the at least one set of paging sequences includes at least one paging sequence, the first resource is used to carry the at least one set of paging sequences in the plurality of cells, the plurality of cells including the cell corresponding to the first network device; and receiving a paging message from the network device corresponding to the plurality of cells according to the second message.

[0400] In a third possible implementation, the communication device 1100 may be a first network device, used to implement the relevant methods corresponding to the first network device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0401] For example, the methods corresponding to the first network device in the above embodiments include: determining a first paging sequence; and sending a paging message to a first terminal device according to the first paging sequence, the paging message being carried by a first resource, the first resource being used to carry the at least one set of paging sequences, each of the at least one set of paging sequences including at least one paging sequence. Wherein, the first paging sequence is one of the at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is one set of paging sequences in the at least one set of paging sequences.

[0402] In a fourth possible implementation, the communication device 1100 may be a first network device, used to implement the relevant methods corresponding to the first network device in the above embodiments. For specific functions, please refer to the descriptions in the above embodiments.

[0403] For example, the methods corresponding to the first network device in the above embodiments include: sending a second message to a first terminal device, the second message including at least one of the following: a first identifier for indicating information of at least one set of paging sequences, or a first resource; wherein the first identifier is used to identify the first terminal device in a plurality of cells, each of the at least one set of paging sequences includes at least one paging sequence, the first resource is used to carry the at least one set of paging sequences in the plurality of cells, the plurality of cells including the cell corresponding to the first network device; and sending a paging message to the first terminal device according to the second message.

[0404] For the specific implementation process, please refer to the relevant content in the aforementioned embodiments; it will not be repeated here.

[0405] Based on the same concept, referring to FIG12, this application embodiment also provides another communication device 1200, including: an input / output interface 1210 and a logic circuit 1220; the input / output interface 1210 is used to receive code instructions and transmit them to the logic circuit 1220; the logic circuit 1220 is used to run the code instructions to execute the method executed by the first terminal device or the first network device in any of the above embodiments.

[0406] In a first implementation, the communication device 1200 can be applied to a first terminal device to execute the method performed by the first terminal network device, specifically, for example, the method performed by the first terminal device in the aforementioned method embodiments. For example, the communication device 1200 can determine a first paging sequence; and receive a paging message according to the first paging sequence, the paging message being carried by a first resource, the first resource being used to carry at least one set of paging sequences, each of the at least one set of paging sequences including at least one paging sequence. Wherein, the first paging sequence is one of the at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is one set of paging sequences in the at least one set of paging sequences.

[0407] In the second implementation, the communication device 1200 can be applied to a first terminal device to execute the method performed by the first terminal network device, specifically, for example, the method performed by the first terminal device in the aforementioned method embodiments. For example, the communication device 1200 can receive a second message from the first network device, the second message including at least one of the following: a first identifier for indicating information of at least one set of paging sequences, or a first resource; wherein the first identifier is used to identify the first terminal device within a plurality of cells, each of the at least one set of paging sequences includes at least one paging sequence, the first resource is used to carry the at least one set of paging sequences within the plurality of cells, the plurality of cells including the cell corresponding to the first network device; and the communication device 1200 receives paging messages from the network device corresponding to the plurality of cells according to the second message.

[0408] In a third implementation, the communication device 1200 can be applied to a first network device to execute the method performed by the first network device, specifically, for example, the method performed by the first network device in the aforementioned method embodiments. For example, the communication device 1200 can determine a first paging sequence; and send a paging message to a first terminal device according to the first paging sequence, the paging message being carried by a first resource, the first resource being used to carry the at least one set of paging sequences, each of the at least one set of paging sequences including at least one paging sequence. Wherein, the first paging sequence is one of the at least one paging sequences included in the at least one set of paging sequences, or the first paging sequence is one set of paging sequences in the at least one set of paging sequences.

[0409] In the fourth implementation, the communication device 1200 can be applied to a first network device to execute the method performed by the first network device, specifically, for example, the method performed by the first network device in the aforementioned method embodiments. For example, the communication device 1200 can send a second message to a first terminal device, the second message including at least one of the following: a first identifier for indicating information of at least one set of paging sequences, or a first resource; wherein the first identifier is used to identify the first terminal device within a plurality of cells, each of the at least one set of paging sequences includes at least one paging sequence, the first resource is used to carry the at least one set of paging sequences within the plurality of cells, the plurality of cells including the cell corresponding to the first network device; and a paging message is sent to the first terminal device according to the second message.

[0410] For the specific implementation process, please refer to the aforementioned method implementation examples, which will not be repeated here.

[0411] This application also provides a communication system, which may include one or more of the following: a first network device or a first terminal device. Optionally, the communication system may further include a second network device. The first network device or the first terminal device can be referred to the descriptions in the foregoing method embodiments, and will not be repeated here.

[0412] This application also provides a computer-readable storage medium for storing computer programs or instructions. When the computer programs or instructions are run, the methods or steps executed by the first network device or the first terminal device in the foregoing embodiments are implemented.

[0413] This application also provides a computer program product, including a computer program, which, when run on a computer, enables the methods or steps executed by the first network device or the first terminal device in the foregoing embodiments to be implemented.

[0414] This application provides a chip system including a processor for implementing the functions of the first network device or the first terminal device in the aforementioned method (e.g., executing corresponding methods or steps). The chip system may be composed of a chip or may include a chip and other discrete components.

[0415] Optionally, the chip system also includes a memory for storing program instructions that the processor can read and execute to implement the corresponding method.

[0416] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0417] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0418] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0419] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0420] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0421] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0422] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essential contributing part of the technical solution of this application, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0423] The above description is merely a specific embodiment of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method applied to a first terminal device or an apparatus in the first terminal device, the method comprising: determining a first paging sequence; receiving a paging message according to the first paging sequence, the paging message being carried by a first resource, the first resource being used to carry at least one group of paging sequences, each group of paging sequences in the at least one group of paging sequences comprising at least one paging sequence; wherein the first paging sequence is one of the at least one paging sequence comprised in the at least one group of paging sequences, or the first paging sequence is one group of paging sequences in the at least one group of paging sequences.

2. The method of claim 1, wherein, The receiving of the paging message according to the first paging sequence comprises: checking the paging message according to the first paging sequence; receiving the paging message according to a checking result, the checking result indicating that the paging message is mapped from the first paging sequence.

3. The method according to claim 1 or 2, characterized in that, The paging message is mapped from the first paging sequence to the first resource.

4. The method according to any one of claims 1 to 3, characterized in that, The first resource being used to carry the at least one group of paging sequences comprises: The first resource is used to carry the at least one group of paging sequences in a plurality of cells.

5. The method of any one of claims 1 to 4, wherein: each of the at least one paging sequence comprised in the at least one group of paging sequences is used to page the first terminal device in a plurality of cells; or each group of paging sequences in the at least one group of paging sequences is used to page the first terminal device in a plurality of cells.

6. The method according to any one of claims 1 to 5, characterized in that, The at least one group of paging sequences is generated based on a W sequence.

7. The method of any one of claims 1 to 6, wherein: the first paging sequence is generated based on one W sequence; or the first paging sequence is generated based on a group of W sequences, the group of W sequences comprising at least one sequence.

8. The method according to claim 6 or 7, characterized in that, A highest order term of the W sequence is a quadratic term, or a highest order term of the W sequence is a cubic term, or a highest order term of the W sequence is a quartic term.

9. The method of any one of claims 1 to 8, wherein: the at least one group of paging sequences comprises a plurality of paging sequences, and a highest order term used in generating the plurality of paging sequences based on a W sequence is the same.

10. The method of any one of claims 1 to 9, wherein: the at least one group of paging sequences comprises a plurality of paging sequences, and a second highest order term used in generating the plurality of paging sequences based on a W sequence is different, and / or a first order term used in generating the plurality of paging sequences based on a W sequence is different.

11. The method according to any one of claims 6 to 10, characterized in that, The W sequence is generated based on a generation length of a sequence and a length of the sequence in one generation period.

12. The method according to any one of claims 6 to 11, characterized in that, The W sequence satisfies the following equation: where x(n) is a W sequence, n is an integer greater than 0 and less than or equal to N, N is the generation length of the sequence, P is the length of the sequence in a generation period, p i is a non-zero integer, 1 < i ≤ d, d is an integer greater than 1, p1 and p0 are both constants.

13. The method of claim 12, wherein: wherein said d is 2, said W sequence is or d is 3, the W sequence is or wherein said d is 4, said W sequence is wherein a is an integer greater than or equal to 0 and less than or equal to (P-1), μ is an integer greater than or equal to 0 and less than or equal to (P-1), γ is an integer greater than or equal to 0 and less than or equal to (P-1), τ is an integer greater than or equal to 0 and less than or equal to (Q-1), Q is a number of cyclic shifts in a time domain, and θ is a constant.

14. The method according to any one of claims 11 to 13, characterized in that, The length of the sequence in one generation period is a prime number.

15. The method according to any one of claims 11 to 14, characterized in that, The method further includes: receiving a first message, the first message being used to indicate a related parameter of the W sequence, the related reference including at least one of: a mapping length of the sequence, a generation length of the sequence, d, Q, a, m, g, t, or q.

16. The method according to any one of claims 1 to 15, characterized in that, The at least one group of paging sequences includes the first paging sequence and the second paging sequence, and information indicated by the first paging sequence is different from information indicated by the second paging sequence.

17. The method of any one of claims 1 to 16, wherein, The at least one group of paging sequences includes the first paging sequence and the second paging sequence, and a resource carrying the first paging sequence is the same as a resource carrying the second paging sequence, or the resource carrying the first paging sequence is different from the resource carrying the second paging sequence.

18. The method of any one of claims 1 to 17, wherein, The first paging sequence is used for at least one of: paging at least one terminal device, data transmission, notifying system information update, or control information transmission, wherein the at least one terminal device includes the first terminal device.

19. The method of any one of claims 1 to 18, wherein, The first terminal device supports dedicated paging.

20. The method of any one of claims 1 to 19, wherein, The method further includes: receiving a second message from a first network device, the second message including at least one of: a first identifier, information used to indicate the at least one group of paging sequences, or the first resource; wherein the first identifier is used to identify the first terminal device within a plurality of cells, and the plurality of cells includes a cell corresponding to the first network device.

21. The method of any one of claims 1-20, wherein: the first identifier of the first terminal device is determined by an identifier of a first cell and a radio network temporary identifier (RNTI) of the first terminal device; or the first identifier of the first terminal device is determined by an identifier of a first area, an identifier of a first cell, and a RNTI of the first terminal device; wherein the first identifier is used to identify the first terminal device within a plurality of cells, the first area is an area covered by network devices corresponding to the plurality of cells, and the first cell belongs to the plurality of cells.

22. The method of any one of claims 1-21, wherein: an identifier of at least one paging sequence included in the at least one group of paging sequences is determined by a first identifier; and / or an identifier of at least one resource is determined by a first identifier, the at least one resource being used to carry at least one paging sequence included in the at least one group of paging sequences; wherein the first identifier is used to identify the first terminal device within a plurality of cells.

23. The method of claim 22, wherein, an identifier of at least one paging sequence included in the at least one group of paging sequences is determined by a first identifier, including: an identifier of at least one paging sequence included in the at least one group of paging sequences is determined by the first identifier and first information, the first information including a number of paging sequences included in the at least one group of paging sequences and / or a first number, the first number being a number of paging sequences supported for transmission within the plurality of cells.

24. The method of claim 22 or 23, wherein, an identifier of at least one resource is determined by a first identifier, including: The identity of the at least one resource is determined by the first identity and second information, the second information comprising a number of the at least one resource and / or a second number determination, the second number being a number of resources used to carry a paging sequence transmitted within the plurality of cells.

25. The method of any one of claims 1-24, wherein, The receiving manner of the paging message is determined by the first identity, the receiving manner being receiving the paging message using a synchronous mode or the receiving manner being receiving the paging message using an asynchronous mode, wherein the first identity is used to identify the first terminal device within the plurality of cells.

26. The method of any one of claims 1 to 25, wherein, The method further comprises: receiving a third message, the third message being used to indicate the first terminal device to receive the paging message using a synchronous mode or the third message being used to indicate the first terminal device to receive the paging message using an asynchronous mode.

27. A method of communication, comprising: The method applied to a first network device or an apparatus in the first network device, the method comprising: determining a first paging sequence; sending a paging message to a first terminal device according to the first paging sequence, the paging message being carried by a first resource, the first resource being used to carry at least one group of paging sequences, each group of paging sequences in the at least one group of paging sequences comprising at least one paging sequence; wherein the first paging sequence is one of the at least one paging sequence comprised by the at least one group of paging sequences, or the first paging sequence is one group of paging sequences in the at least one group of paging sequences.

28. The method of claim 27, wherein, The paging message is obtained by mapping the first paging sequence to the first resource.

29. The method of claim 27 or 28, wherein, The first resource used to carry the at least one group of paging sequences comprises: The first resource is used to carry the at least one group of paging sequences within a plurality of cells.

30. The method of any one of claims 27-29, wherein, each of the at least one paging sequence comprised by the at least one group of paging sequences is used to page the first terminal device within a plurality of cells; or, each group of paging sequences in the at least one group of paging sequences is used to page the first terminal device within a plurality of cells.

31. The method of any one of claims 27-30, wherein, The at least one group of paging sequences is generated based on a W sequence.

32. The method of any one of claims 27-31, wherein, the first paging sequence is generated based on one W sequence; or, the first paging sequence is generated based on a group of W sequences, the group of W sequences comprising at least one sequence.

33. The method of claim 31 or 32, wherein, The highest order term of the W sequence is a quadratic term, or the highest order term of the W sequence is a cubic term, or the highest order term of the W sequence is a quartic term.

34. The method of any one of claims 27-33, wherein, the at least one group of paging sequences comprises a plurality of paging sequences, and the highest order term used when generating the plurality of paging sequences based on a W sequence is the same.

35. The method of any one of claims 27-32, wherein, The at least one group of paging sequences comprises a plurality of paging sequences, a different second highest term is used when the plurality of paging sequences are generated based on the W sequence, and / or a different first term is used when the plurality of paging sequences are generated based on the W sequence.

36. The method of any one of claims 31-35, wherein, The W sequence is generated based on a generation length of the sequence and a length of the sequence in one generation period.

37. The method of any one of claims 31-36, wherein, The W sequence satisfies the following equation: where x(n) is a W sequence, n is an integer greater than 0 and less than or equal to N, N is the generation length of the sequence, P is the length of the sequence in a generation period, p i is a non-zero integer, 1 < i ≤ d, d is an integer greater than 1, p1 and p0 are both constants.

38. The method of claim 37, wherein, wherein said d is 2, said W sequence is or, wherein d is 3, the W sequence is or, wherein d is 4, the W sequence is wherein a is an integer greater than or equal to 0 and less than or equal to (P-1), μ is an integer greater than or equal to 0 and less than or equal to (P-1), γ is an integer greater than or equal to 0 and less than or equal to (P-1), τ is an integer greater than or equal to 0 and less than or equal to (Q-1), Q is a number of cyclic shifts in a time domain, and θ is a constant.

39. The method of any one of claims 36-38, wherein, The length of the sequence in one generation period is a prime number.

40. The method of any one of claims 36 to 39, wherein, The method further comprises: sending, to the first terminal device, a first message, the first message being used to indicate a related parameter of the W sequence, the related parameter comprising at least one of the following: a mapping length of the sequence, a generation length of the sequence, d, Q, a, μ, γ, τ, or θ.

41. The method of any one of claims 27-40, wherein, The at least one group of paging sequences comprises the first paging sequence and a second paging sequence, and the first paging sequence indicates different information from the second paging sequence.

42. The method of any one of claims 27-41, wherein, The first paging sequence is used for at least one of the following: paging at least one terminal device, data transmission, notifying a system information update, or control information transmission, wherein the at least one terminal device comprises the first terminal device.

43. The method of any one of claims 27-42, wherein, The method further comprises: sending, to the first terminal device, a second message, the second message comprising at least one of the following: a first identifier used to indicate information of the at least one group of paging sequences, or the first resource; wherein the first identifier is used to identify the first terminal device in a plurality of cells, the plurality of cells comprising a cell corresponding to the first network device.

44. The method of any one of claims 27 to 43, wherein, the first identifier of the first terminal device is determined by an identifier of a first cell and an RNTI of the first terminal device; or the first identifier of the first terminal device is determined by an identifier of a first area, an identifier of a first cell, and an RNTI of the first terminal device; wherein the first identifier is used to identify the first terminal device in a plurality of cells, the first area is an area covered by network devices corresponding to the plurality of cells, and the first cell belongs to the plurality of cells.

45. The method of any one of claims 27 to 44, wherein, an identifier of at least one paging sequence comprised in the at least one group of paging sequences is determined by a first identifier; and / or an identifier of at least one resource used to carry at least one paging sequence comprised in the at least one group of paging sequences is determined by a first identifier; wherein the first identifier is used to identify the first terminal device in a plurality of cells.

46. The method of claim 45, wherein, an identifier of at least one paging sequence comprised in the at least one group of paging sequences is determined by a first identifier, comprising: The identity of the at least one paging sequence comprised in the at least one group of paging sequences is determined by the first identity and first information, the first information comprising a number of paging sequences comprised in the at least one group of paging sequences and / or a first number, the first number being a number of paging sequences supported for transmission in the plurality of cells.

47. The method of claim 45 or 46, wherein, The identity of the at least one resource is determined by the first identity, comprising: The identity of the at least one resource is determined by the first identity and second information, the second information comprising a number of resources and / or a second number determination, the second number being a number of resources for carrying paging sequences transmitted in the plurality of cells.

48. The method of any one of claims 27-47, wherein, The method further comprises: sending a third message to the first terminal device, the third message being used to instruct the first terminal device to receive the paging message using a synchronous mode, or the third message being used to instruct the first terminal device to receive the paging message using an asynchronous mode.

49. A communications device, characterized by comprising means for performing the method of any one of claims 1 to 26, or comprising means for performing the method of any one of claims 27 to 48.

50. A communications device, characterized by comprising at least one processor configured to perform the method of any one of claims 1 to 26, or comprising at least one processor configured to perform the method of any one of claims 27 to 48.

51. A communication system, characterized by comprising a first terminal device and / or a first network device, wherein the first terminal device is configured to perform the method of any one of claims 1 to 26, and the first network device is configured to perform the method of any one of claims 27 to 48.

52. A computer-readable storage medium, comprising: having a computer program or instructions stored therein, which, when executed by a computer, cause the method of any one of claims 1 to 26 to be implemented, or cause the method of any one of claims 27 to 48 to be implemented.

53. A computer program product, characterised in that, The computer program product comprises a computer program which, when executed on a computer, causes the method of any one of claims 1 to 26 to be implemented, or causes the method of any one of claims 27 to 48 to be implemented.

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